Roller brush assembly, chassis structure, cleaning device, and cleaning system

Abstract

The present application relates to the technical field of cleaning, and provides a roller brush assembly (100), a chassis structure, a cleaning device, and a cleaning system. The roller brush assembly (100) comprises an upper cover (110), a roller brush (120), and a blocking member (130); the upper cover (110) is provided with an accommodating cavity (110a) that is arranged to face a surface to be cleaned; a first airflow opening (110b) is formed between the lower end surface of the upper cover (110) facing said surface and said surface; at least part of the roller brush (120) is located in the accommodating cavity (110a), and is movable between a high position and a low position relative to the upper cover (110); the blocking member (130) is arranged on the upper cover (110), and is movable between a high position and a low position relative to the upper cover (110); when the blocking member (130) is located at the low position, the lower end surface of the blocking member (130) extends beyond the lower end surface of the upper cover (110) and blocks part of the first airflow opening (110b), and a second airflow opening (130a) is formed between the lower end surface of the blocking member (130) and said surface. The roller brush assembly (100) in the present application can solve the problem of poor cleaning effect on surfaces o be cleaned, such as a carpet, thereby affecting user experience.

Description

Roller brush assembly, chassis structure, cleaning equipment and cleaning system

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202510295072.1, filed on March 13, 2025, entitled "Roller Brush Assembly, Chassis Structure, Cleaning Equipment and Cleaning System", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of cleaning technology, specifically to a roller brush assembly, chassis structure, cleaning equipment, and cleaning system. Background Technology

[0004] Cleaning equipment refers to common intelligent cleaning appliances, such as robotic vacuum cleaners and automatic sweeping machines. These devices can perform deep cleaning, including vacuuming, on floors, tiles, and carpets.

[0005] Carpets have a soft surface, making it easy for dirt, hair, and other grime to penetrate deeply into the carpet. In existing technologies, cleaning equipment typically only provides light cleaning of the carpet surface with sufficient suction power, failing to achieve deep cleaning of the dirt inside the carpet. This results in poor cleaning performance and negatively impacts the user experience. Summary of the Invention

[0006] This application provides a roller brush assembly, chassis structure, cleaning equipment, and cleaning system, which can solve the problem of poor cleaning effect on carpets and other surfaces awaiting cleaning, thus affecting the user experience.

[0007] To achieve the above objectives, in a first aspect, this application provides a roller brush assembly, which includes an upper cover, a roller brush, and a shield.

[0008] The top cover has a receiving cavity facing the surface to be cleaned, and a first airflow port is formed between the lower end face of the top cover facing the surface to be cleaned and the surface to be cleaned; a portion of the roller brush is located in the receiving cavity, and the roller brush can move relative to the top cover to have a high position and a low position; a blocking member is disposed on the top cover, and the blocking member can move relative to the top cover to have a rising position and a falling position. When the blocking member is in the falling position, the lower end face of the blocking member extends beyond the lower end face of the top cover, and a portion of the blocking member blocks part of the first airflow port, and a second airflow port is formed between the lower end face of the blocking member and the surface to be cleaned.

[0009] The roller brush assembly provided in this application has a shielding member that can slide relative to the upper cover and has an upward position and a downward position, allowing the roller brush assembly to have two cleaning states. When the shielding member is in the upward position, dirt on the surface to be cleaned can be sucked out through the first airflow port. When the shielding member is in the downward position, the lower end face of the shielding member can block part of the first airflow port to form a second airflow port. At this time, dirt on the surface to be cleaned can be sucked out through the second airflow port.

[0010] Because part of the first airflow port is blocked to form the second airflow port, and the opening of the second airflow port is smaller than that of the first airflow port, the sealing performance of the roller brush assembly at the second airflow port is higher when the blocking member is in the downward position than when the blocking member is in the upward position. Therefore, when the blocking member is in the downward position, it can have a stronger suction effect on the surface to be cleaned.

[0011] Therefore, when cleaning hard surfaces such as floors and tiles, since dust, hair, and other dirt usually float on the surface, the shield can be positioned in an upward position to suck up the dirt through the first airflow inlet. When cleaning soft surfaces such as carpets, since dust, hair, and other dirt tend to embed deeply into the surface, the shield can be positioned in a downward position to deeply suck up the dirt through the second airflow inlet.

[0012] Furthermore, the roller brush in this embodiment can also move relative to the upper cover, having a high position and a low position. When the roller brush is in the low position, it can contact the surface to be cleaned to clean it. When cleaning soft surfaces such as carpets or encountering obstacles, the roller brush can be moved to the high position. The contact depth between the roller brush and the surface to be cleaned when the roller brush is in the high position is less than the contact depth when the roller brush is in the low position. Alternatively, when the roller brush is in the high position, there can be a gap between the roller brush and the surface to be cleaned.

[0013] Specifically, when cleaning soft surfaces such as carpets, the roller brush can be kept in a high position to prevent it from getting tangled with the carpet fibers, thus avoiding damage to the carpet or the roller brush. Alternatively, when encountering obstacles such as wire harnesses or thresholds, keeping the roller brush in a high position can prevent the wire harnesses from getting tangled or colliding with the roller brush, thus avoiding interference with the normal operation of the cleaning equipment.

[0014] Therefore, in this embodiment of the application, by moving the shielding component relative to the top cover and the roller brush relative to the top cover, the cleaning device can be applied to different application scenarios, thereby reducing the possibility of cumbersome cleaning process and affecting user experience due to the replacement of roller brush components and other accessories.

[0015] According to one embodiment of this application, the roller brush assembly further includes a power source connected to the upper cover. The power source is used to drive the roller brush to move between a high position and a low position, and to drive the blocking member to move between a rising position and a falling position.

[0016] In this embodiment, the movement of the roller brush and the movement of the blocking component can be achieved by a single power source. This allows for a more compact structure of the roller brush assembly, simplifying the layout of its components. Furthermore, it reduces the cost of the roller brush assembly, thereby lowering the overall product cost of the cleaning equipment.

[0017] Secondly, this application provides a roller brush assembly, which includes:

[0018] The top cover has a receiving cavity facing the surface to be cleaned, and a first airflow port is formed between the lower end face of the top cover facing the surface to be cleaned and the surface to be cleaned.

[0019] Roller brush, with part of the roller brush located in the receiving cavity, is used to clean the surface to be cleaned;

[0020] A shielding component is disposed on the upper cover. The shielding component can move relative to the upper cover to have an upward position and a downward position. When the shielding component is in the downward position, the lower end face of the shielding component extends beyond the lower end face of the upper cover. The shielding component partially blocks the first airflow port, and a second airflow port is formed between the lower end face of the shielding component and the surface to be cleaned.

[0021] A first drive assembly is disposed on the upper cover and is used to drive the blocking member to move between a rising position and a falling position.

[0022] The second drive assembly is disposed on the upper cover and is used to enable the roller brush to have a high position state and a low position state, and the roller brush moves between the high position state and the low position state.

[0023] The first drive component and the second drive component move in coordination.

[0024] The roller brush assembly provided in this application, by setting a shielding member with an upward and downward position, can be used to change the size of the suction port formed between the roller brush assembly and the surface to be cleaned (i.e., the opening of the first airflow port is different from the opening of the second airflow port), thereby changing the intensity of the negative pressure environment formed between the roller brush assembly and the surface to be cleaned. This allows for cleaning of different types of surfaces, improving the applicability of the cleaning equipment and ensuring good cleaning results for different types of surfaces.

[0025] Improving the applicability of cleaning equipment can mean that a single cleaning device and a set of roller brush components can be used to clean different types of surfaces without having to replace the cleaning device or roller brush components, which is beneficial to improving the user experience.

[0026] Furthermore, the roller brush can move between high and low positions. When the surface to be cleaned is uneven, the roller brush can be controlled to be in different positions to meet the contact depth with the surface to be cleaned, thereby ensuring the cleaning effect.

[0027] Specifically, when a portion of the surface to be cleaned is raised, the roller brush can be raised a corresponding distance to reduce excessive contact between the roller brush and the surface, thus reducing the possibility of damage to the roller brush or the surface. When a portion of the surface to be cleaned is recessed, the roller brush can be lowered a corresponding distance to maintain contact between the roller brush and the surface, thereby ensuring effective cleaning of the recessed areas.

[0028] The first drive component can be used to drive the blocking component to rise or fall to reach a raised or lowered position. The second drive component can be used to cause the roller brush to rise or fall to reach a high position or a low position. By setting the first drive component and the second drive component to move in coordination, the blocking component and the roller brush can be linked, and the structure of the roller brush assembly can be made compact.

[0029] It should be noted that the coordinated movement of the first driving component and the second driving component can mean that the movement of the first driving component causes the movement of the second driving component, thereby causing the roller brush to move. Alternatively, the movement of the second driving component can cause the movement of the first driving component, thereby causing the blocking component to move. No specific limitation is made in the embodiments of this application.

[0030] For example, when the cleaning device is moving across the surface to be cleaned without actually cleaning it, the roller brush can be in a high position and the shield can be in an elevated position. In cleaning mode, the roller brush is in a low position. Depending on the application scenario, the shield can be in an elevated or lowered position.

[0031] Specifically, when cleaning hard surfaces such as floors and tiles, the baffle can be positioned in the raised position to suction and clean dirt from the surface through the first airflow port. When cleaning soft surfaces such as carpets, the baffle can be positioned in the lowered position to perform deep suction and cleaning through the second airflow port. Because part of the first airflow port is blocked to form the second airflow port, and the opening of the second airflow port is smaller than that of the first airflow port, the sealing effect of the roller brush assembly at the second airflow port is greater when the baffle is in the lowered position than at the first airflow port when the baffle is in the raised position. The lowered position provides a stronger cleaning effect, making it suitable for cleaning surfaces where dirt tends to embed deeply, such as carpets.

[0032] It is easy to understand that, in the embodiments of this application, by adjusting the movement of the shield between the rising position and the falling position, the magnitude of the suction force between the roller brush assembly and the surface to be cleaned can be adjusted to be suitable for cleaning different types of surfaces to be cleaned. Therefore, the power of the power unit such as the fan or blower used to provide suction force can remain unchanged, which is beneficial to saving energy consumption.

[0033] It should be noted that the first drive component can also be used to drive the shield to stop at any position between the rising position and the falling position, so that a second airflow port of different size is formed between the lower end face of the shield and the surface to be cleaned, thereby allowing the roller brush component to have different suction forces with the surface to be cleaned, so as to be suitable for more cleaning scenarios.

[0034] Additionally, it should be noted that the second drive component can also be used to drive the roller brush to stop at any position between the high and low states, so that the roller brush can rise or fall different distances, thereby ensuring the contact depth between the roller brush and the surface to be cleaned in different cleaning scenarios.

[0035] According to one embodiment of this application, the roller brush assembly has an initial mode, a first cleaning mode, and a second cleaning mode;

[0036] When the roller brush assembly is in the initial mode, the roller brush is in a high position and the blocking part is in an upward position.

[0037] When the roller brush assembly is in the first cleaning mode, the roller brush is in a low position, the shield is in a raised position, and the external airflow enters the upper cover through the first airflow port.

[0038] When the roller brush assembly is in the second cleaning mode, the roller brush is in a low position, the shield is in a lowered position, and the external airflow enters the top cover through the second airflow port.

[0039] In this embodiment, the roller brush assembly can have an initial mode, a first cleaning mode, and a second cleaning mode through the coordinated movement of the first driving component and the second driving component, thereby meeting different application scenarios.

[0040] During the process of the cleaning equipment moving to the cleaning position on the surface to be cleaned, the cleaning equipment can temporarily suspend cleaning of the surface, and the roller brush assembly can be in its initial mode. At this time, the roller brush can be in a high position, and the shielding part can be in an elevated position. This reduces the possibility of the roller brush or shielding part getting tangled or colliding with obstacles on the surface to be cleaned during the movement of the cleaning equipment. On the other hand, it avoids contact between the roller brush and the surface to be cleaned along the movement path, which could cause the roller brush to become dirty before reaching the cleaning position, thus affecting the cleaning effect.

[0041] When the cleaning device moves to the area to be cleaned, the roller brush assembly can initiate cleaning. When cleaning hard surfaces such as floors and tiles, the roller brush assembly can be in the first cleaning mode. The second drive assembly lowers the roller brush to a low position to ensure contact between the roller brush and the surface to be cleaned. The first drive assembly keeps the shield in the raised position. During cleaning, a negative pressure environment is created within the cavity of the top cover. Under the action of this negative pressure, the airflow outside the roller brush assembly draws dirt from the surface to be cleaned into the top cover through the first airflow port and into the dust box via the roller brush.

[0042] When cleaning soft surfaces such as carpets, dirt tends to embed deeply, requiring a stronger suction effect. In this case, the roller brush assembly can be switched to a second cleaning mode. The second drive mechanism lowers the roller brush to a low position, bringing it into contact with the surface. The first drive assembly lowers the blocking component to its lowered position. This blocking component partially blocks the first airflow inlet, creating a second airflow inlet and increasing the negative pressure there. During cleaning, the dirt on the surface is powerfully sucked in for deep cleaning.

[0043] According to one embodiment of this application, the suction force of the external airflow through the second airflow port is greater than the suction force through the first airflow port.

[0044] In this embodiment, a first airflow port is formed between the lower end face of the top cover and the surface to be cleaned. When the blocking member is in the lowered position, the lower end face of the blocking member extends beyond the lower end face of the top cover. At this time, a second airflow port is formed between the lower end face of the blocking member and the surface to be cleaned. In other words, the blocking member can partially block the first airflow port to form the second airflow port; therefore, the size of the first airflow port is larger than the size of the second airflow port.

[0045] It's easy to understand that a smaller second airflow port results in a better seal between the top cover and the surface to be cleaned. Therefore, the suction force of the top cover at the second airflow port is greater than the suction force at the first airflow port when the baffle is in the raised position. By generating a stronger suction force at the second airflow port, the ability to carry away dirt from the surface to be cleaned is improved, allowing deeply embedded dirt such as hair and dust to be sucked into the dustbin.

[0046] It's easy to understand that the suction power of the roller brush assembly in the second cleaning mode is greater than that in the first cleaning mode. Therefore, when deep cleaning is required, the roller brush assembly can be set to the second cleaning mode.

[0047] According to one embodiment of this application, the size of the second airflow port is smaller than the size of the first airflow port along the height direction of the roller brush assembly.

[0048] In this embodiment, when the shielding member is in the lowered position, the distance between the lower end face of the shielding member facing the surface to be cleaned and the surface to be cleaned can be less than the distance between the lower end face of the top cover and the surface to be cleaned. Therefore, on the one hand, the shielding member can increase the sealing between the roller brush assembly and the surface to be cleaned, thereby increasing the internal and external pressure difference of the top cover at the second airflow port, and thus improving the suction force on the dirt on the carpet surface to be cleaned. On the other hand, the shielding member can block the airflow to a certain extent, allowing more airflow to flow between the roller brush and the surface to be cleaned, thereby improving the suction force on the dirt on the surface to be cleaned.

[0049] According to one embodiment of this application, the first drive assembly includes a first adapter connected to a shield, and the second drive assembly includes a second adapter connected to a roller brush, wherein the first adapter and the second adapter cooperate to move.

[0050] The first adapter moves to drive the second adapter, or the first adapter moves to provide space for the second adapter to move.

[0051] In this embodiment, the coordinated movement of the first and second adapters means that the driving force for the movement of the second adapter can originate from the first adapter. In other words, the movement of the first adapter can drive the synchronous movement of the second adapter. Alternatively, the driving force for the movement of the second adapter can also originate from other structures. For example, after the first rotating component moves a certain distance, it can provide movement space for the second rotating component, thereby allowing the second rotating component to move between a high position and a low position under the action of the brush itself or other structures.

[0052] According to one embodiment of this application, one of the first adapter and the second adapter is provided with an annular slide, the annular slide having a first limiting end and a second limiting end, and the other of the first adapter and the second adapter is provided with a mating protrusion, the mating protrusion being able to slide within the annular slide.

[0053] In this embodiment, the forward or reverse rotation of the first adapter can raise or lower the blocking member. The movement trajectory of the first adapter is arc-shaped. By using the arc-shaped movement trajectory of the first adapter to raise and lower the blocking member in the height direction of the roller brush assembly, the raising and lowering of the blocking member can be achieved by occupying a relatively small amount of internal space on the roller brush assembly. The arc-shaped movement trajectory also has a space-saving effect.

[0054] Similarly, the forward or reverse rotation of the second adapter can raise or lower the roller brush. The movement trajectory of the second adapter is an arc. Achieving the raising and lowering of the roller brush through the arc-shaped movement trajectory of the second adapter allows for the use of relatively little internal space within the roller brush assembly.

[0055] The rotation of the first adapter can drive the blocking component to switch between an upward and a downward position. Furthermore, the rotation of the first adapter can also cause the second adapter to rotate, allowing the roller brush to move between a high and a low position. Therefore, the relative rotation of the first and second adapters enables the linkage between the blocking component and the roller brush.

[0056] In some examples, the first adapter may have a mating protrusion. The second adapter may have an annular slide. Alternatively, the first adapter may have an annular slide, and the second adapter may have a mating protrusion; this is not limited in the embodiments of this application.

[0057] For example, in this embodiment of the application, a first adapter has an annular slide rail, and a second adapter has a mating protrusion. When the roller brush assembly is in the initial mode, the mating protrusion is connected to the first limiting end of the annular slide rail. The mating protrusion and the first limiting end can have a relative force, so that the mating protrusion can remain stationary within the annular slide rail. The first adapter and the second adapter are relatively stationary. The blocking member can be held in the raised position, and the roller brush can be held in the high position.

[0058] Since the roller brush needs to be in a low position during the cleaning process, it can maintain a downward trend in the initial mode to facilitate switching between the initial mode and the first or second cleaning mode. This downward trend can be maintained by the roller brush's gravity. Under the influence of gravity, the protrusion and the first limiting end can remain in contact.

[0059] When the roller brush assembly activates the first cleaning mode, for example, when cleaning surfaces such as floors or tiles, the roller brush needs to be lowered, and the shield can remain in the raised position. At this time, the first adapter can be controlled to rotate counterclockwise. The first limiting end of the annular slide on the first adapter rotates away from the mating protrusion. Through the movement of the first adapter, the annular slide provides space for the mating protrusion to move. At this time, the mating protrusion is no longer abutted by the first limiting end, and the mating protrusion can rotate counterclockwise under the weight of the roller brush, so that the roller brush can descend to the low position and clean the surface to be cleaned.

[0060] It should be noted that when the roller brush reaches the low position, it contacts the surface to be cleaned, and therefore, the roller brush will not continue to descend. In other words, the mating protrusion will not continue to rotate counterclockwise. At this time, the mating protrusion and the first limiting end can be connected or have a gap, which is not limited in the embodiments of this application.

[0061] Additionally, it should be noted that in the first cleaning mode, the counter-clockwise rotation of the first adapter is primarily to provide rotatable space for the mating protrusion, allowing the roller brush to descend. The first adapter will not cause the shielding component to descend during this stroke.

[0062] When the roller brush assembly switches from the first cleaning mode to the second cleaning mode, for example, when cleaning a carpet or other surface awaiting cleaning, the roller brush can remain lowered, causing the shielding member to also move downwards to the lowered position. At this time, the first adapter can be controlled to continue rotating counterclockwise. The first adapter can drive the shielding member downwards to the lowered position.

[0063] According to one embodiment of this application, the first driving component includes a first elastic member, which connects a first adapter and a blocking member. The first adapter drives the first elastic member to deform in order to drive the blocking member to rise to a raised position.

[0064] In this embodiment, the first elastic member can provide tension to the blocking member, allowing the blocking member to move in the upward direction and remain in the upward position when the roller brush assembly is in the initial mode. As the blocking member moves in the upward direction, the first elastic member can gradually generate elastic deformation. When the blocking member is in the upward position, the elastic deformation generated by the first elastic member is at its maximum, ensuring that the blocking member remains in the upward position.

[0065] When cleaning the carpet, the shielding component needs to be lowered to increase suction power. The roller brush assembly can then activate the second cleaning mode. At this time, the first adapter can be rotated counter-clockwise. Part of the counter-clockwise rotation of the first adapter provides space for the second adapter to rotate, allowing the roller brush to be in a lower position. As the first adapter continues to rotate counter-clockwise, the first elastic element gradually releases its tension on the shielding component. When the tension of the first elastic element on the shielding component reaches zero, the shielding component can reach its lowered position under its own weight.

[0066] According to one embodiment of this application, the first drive assembly further includes a second elastic member, one end of which is connected to a shielding member and the other end of which is connected to a top cover. The second elastic member has a first deformation and a second deformation.

[0067] When the blocking member is in the rising position, the second elastic member has a first deformation; when the blocking member is in the falling position, the second elastic member has a second deformation, and the first deformation is greater than the second deformation.

[0068] In this embodiment, the second elastic element can be used to drive the blocking element downwards to the descent position. Therefore, the blocking element can quickly reach the descent position under its own weight and the action of the second elastic element, which helps to improve the smoothness of the blocking element's descent process.

[0069] Therefore, the first elastic element can be used to provide an upward force to the blocking element, and the second elastic element can be used to provide a downward force to the blocking element. Specifically, when the blocking element is in the raised position, since the first elastic element can provide a pulling force to the blocking element to keep it in the raised position, the pulling force of the first elastic element is greater than or equal to the sum of the elastic force of the second elastic element and the weight of the blocking element. At this time, the second elastic element generates a first deformation between the top cover and the blocking element to accumulate elastic potential energy.

[0070] When the roller brush assembly is in the first cleaning mode, the roller brush can be lowered by rotating the first adapter counterclockwise in conjunction with the movement of the second adapter. During this process, the tension of the first elastic element can be gradually released, and the tension of the first elastic element gradually decreases. However, the first elastic element can still keep the shielding element in the raised position.

[0071] As the first adapter continues to rotate counterclockwise, the roller brush assembly switches from the first cleaning mode to the second cleaning mode. At this time, the tension of the first elastic element continues to decrease. When the tension of the first elastic element is less than the sum of the elastic force of the second elastic element and the weight of the blocking element, the second elastic element can release its elastic potential energy to drive the blocking element to move towards the downward position.

[0072] Correspondingly, when it is necessary to raise the shielding component, the roller brush assembly can switch from the second cleaning mode to the first cleaning mode. At this time, the first adapter can be controlled to rotate clockwise, so that the first elastic element gradually generates tension. When the tension of the first elastic element can overcome the weight of the shielding component and the elastic force of the second elastic element, the first elastic element can cause the shielding component to move in the direction of the rising position until it reaches the rising position.

[0073] It should be noted that during the switching process from the second cleaning mode to the first cleaning mode of the roller brush assembly, the clockwise rotation of the first adapter will not affect the second adapter. The second adapter can remain stationary so that the roller brush remains in the low position.

[0074] When the shield is in the raised position and the roller brush also needs to be raised, the roller brush assembly can switch from the first cleaning mode to the initial mode. At this time, the first adapter can be controlled to continue rotating clockwise. The clockwise rotation of the first adapter causes the annular slide on the first adapter to gradually approach the mating protrusion on the second adapter. When the first limiting end of the annular slide is connected to the mating protrusion, the continued clockwise rotation of the first adapter can provide driving force to the second adapter, thereby driving the roller brush upward to reach the high position.

[0075] According to one embodiment of this application, when the elastic force of the first elastic member is greater than the sum of the elastic force of the second elastic member and the weight of the blocking member, the first elastic member causes the blocking member to move in the direction of the upward position; when the elastic force of the second elastic member is greater than the elastic force of the first elastic member, the second elastic member causes the blocking member to move in the direction of the downward position.

[0076] In this embodiment, the first elastic member can be used to provide an upward force for the blocking member, and the second elastic member can be used to provide a downward force for the blocking member. Therefore, through the cooperation of the first elastic member and the second elastic member, the blocking member can move between the upward position and the downward position.

[0077] Specifically, when the elastic force of the first elastic element is greater than the elastic force of the second elastic element, the blocking element can move upward under the action of the elastic force of the first elastic element. When the elastic force of the first elastic element is less than the elastic force of the second elastic element, the blocking element can move downward under the action of the elastic force of the second elastic element.

[0078] According to one embodiment of this application, a shielding member is slidably connected to a top cover. One of the shielding member and the top cover may be provided with a limiting groove. The other of the shielding member and the top cover may be provided with a limiting protrusion that can slide within the limiting groove. When the shielding member slides relative to the top cover, the limiting protrusion and the limiting groove can cooperate with each other, allowing the top cover to move along the path of the limiting groove, thereby maintaining the stability of the top cover during movement.

[0079] According to one embodiment of this application, the first elastic element is a tension spring; and / or, the second elastic element is a compression spring.

[0080] According to one embodiment of this application, the first drive assembly further includes a first transmission member, one end of which is connected to a first adapter member, and the other end of which is connected to a first elastic member. The first transmission member is tightened or extended relative to the first adapter member to drive the first elastic member to deform or reset.

[0081] In this embodiment, the rotation of the first adapter can transmit power through the first transmission member. When the first transmission member is tightened on the first adapter member, the first elastic member can deform, and the blocking member can maintain its upward position or move in the direction of the upward position. When at least part of the first transmission member is released from the first adapter member, the first elastic member can be reset. The blocking member can then move to a downward position.

[0082] Specifically, in the initial mode, the first transmission member of the roller brush assembly has a relatively large length surrounding the first adapter, so that the first elastic member exerts a pulling force on the blocking member, thereby keeping the blocking member in the upward position. During the transition of the roller brush assembly from the initial mode to the first cleaning mode or the second cleaning mode, the first transmission member is partially released by rotating the first adapter counterclockwise. The length of the first transmission member surrounding the first adapter decreases, gradually releasing the elastic force (pulling force) of the first elastic member. When the elastic force of the first elastic member is less than the elastic force of the second elastic member, the blocking member can move to the downward position.

[0083] When the roller brush assembly switches from the second cleaning mode to the first cleaning mode, the first adapter can rotate clockwise, tightening part of the first transmission member to increase its length around the adapter. The first transmission member can provide a lifting force to the blocking member through the first elastic member, giving the blocking member an upward tendency. When the elastic force of the first elastic member on the blocking member is greater than the sum of the elastic force of the second elastic member on the blocking member and the weight of the blocking member, the first elastic member can pull the blocking member upward to the raised position.

[0084] According to one embodiment of this application, the second drive assembly further includes a second transmission member, one end of which is connected to the second adapter member, and the other end of which is connected to the roller brush.

[0085] The second transmission component is tightened or extended relative to the second adapter component to drive the roller brush to a high or low position.

[0086] In this embodiment, the movement of the second adapter can be powered by the second transmission member. A portion of the second transmission member can be wound around the second adapter. Clockwise or counterclockwise rotation of the second adapter can cause the second transmission member to tighten or extend relative to the second adapter, allowing the roller brush to rise to a high position or descend to a low position.

[0087] Specifically, when the second adapter rotates counterclockwise, it can release part of the second transmission component, causing the second transmission component to extend relative to the second adapter, thereby gradually lowering the roller brush to a low position. When the second adapter rotates clockwise, it can tighten part of the second adapter, causing the second transmission component to tighten relative to the second adapter, thereby pulling the roller brush to a high position.

[0088] According to one embodiment of this application, the annular slide is located at the first adapter, and the travel distance of the first adapter is at least the sum of the travel distance of the roller brush in the high position and the low position and the travel distance of the shield in the rising position and the falling position.

[0089] In this embodiment, during the switching of the roller brush assembly from the initial mode to the first cleaning mode, a portion of the counterclockwise rotation of the first adapter provides space for the second adapter to move, allowing the roller brush to move between a high position and a low position. Therefore, the travel distance of the first adapter in this segment is equal to the distance the roller brush travels between the high and low positions. During the switching of the roller brush assembly from the first cleaning mode to the second cleaning mode, a further portion of the counterclockwise rotation of the first adapter allows the shielding member to move between an upward and downward position. Therefore, the travel distance of the first adapter in this segment is equal to the distance the shielding member travels between the upward and downward positions.

[0090] In summary, the travel distance of the first adapter is at least the sum of the maximum travel distance of the roller brush and the maximum travel distance of the blocking component.

[0091] According to one embodiment of this application, it further includes a power source, wherein the first drive component and the second drive component share a power source, and one of the first drive component and the second drive component moves synchronously with the power source.

[0092] In this embodiment of the application, the first driving component and the second driving component move in coordination. Therefore, when one of the first driving component and the second driving component is connected to the power source, the movement of the other of the first driving component and the second driving component can be realized.

[0093] It's easy to understand that because the first and second drive components can share a single power source, the roller brush assembly can have a compact structure, simplifying the layout of its components. Furthermore, this reduces the cost of the roller brush assembly, thus lowering the overall product cost of the cleaning equipment.

[0094] According to one embodiment of this application, the first adapter includes a connected adapter disk and a limiting disk, the adapter disk being connected to a power source;

[0095] Along the axial direction of the adapter disk, the second adapter is located between the adapter disk and the limiting disk.

[0096] In this embodiment, the adapter disk can be directly connected to a power source. Along the axial direction of the adapter disk, a second adapter can be located between the adapter disk and the limiting disk. The limiting disk can be used to prevent the second adapter from detaching from the first adapter, thus preventing them from engaging in transmission and affecting the movement of the blocking member and the roller brush.

[0097] Thirdly, this application provides a chassis structure including a chassis body and a roller brush assembly as described in any of the above embodiments. The roller brush assembly may be located at the bottom of the chassis body.

[0098] Fourthly, this application provides a cleaning device that includes a chassis structure.

[0099] Fifthly, this application provides a cleaning system that includes a base station and cleaning equipment. The cleaning equipment can be placed on the base station.

[0100] The beneficial effects of the roller brush assembly provided in this application are as follows: the roller brush moves relative to the upper cover, moving between a high position and a low position, allowing the roller brush to be applied to different surfaces to be cleaned. When the surface to be cleaned is uneven, the roller brush can be controlled to be in different positions to meet the required contact depth with the surface to be cleaned, thereby ensuring the cleaning effect.

[0101] Furthermore, the shielding member moves relative to the upper cover, moving between an upward position and a downward position. When the shielding member moves downward to form a second airflow opening, since the size of the second airflow opening is smaller than the size of the first airflow opening, a greater suction force can be generated at the second airflow opening to improve the suction effect on the surface to be cleaned, thereby improving the cleaning effect on soft surfaces such as carpets.

[0102] Therefore, by moving the shielding component relative to the top cover and the roller brush relative to the top cover, the cleaning equipment can be applied to different application scenarios, thereby reducing the possibility of cumbersome cleaning process and affecting user experience due to the replacement of roller brush components and other accessories.

[0103] The first drive component and the second drive component work together to achieve linkage between the shielding component and the roller brush, and make the structure of the roller brush component compact.

[0104] In addition to the technical problems solved by the embodiments of the present invention, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions as described above, other technical problems that can be solved by the roller brush assembly, chassis structure, cleaning equipment, and cleaning system provided by the embodiments of the present invention, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific embodiments. Attached Figure Description

[0105] Figure 1 shows a three-dimensional structural schematic diagram of a roller brush assembly according to one embodiment of this application;

[0106] Figure 2 shows a cross-sectional view of the shielding member of the roller brush assembly according to one embodiment of the present application in the raised position.

[0107] Figure 3 shows a cross-sectional view of the shielding member of the roller brush assembly according to one embodiment of the present application in a descending position.

[0108] Figure 4 is an enlarged schematic diagram of point A in Figure 1;

[0109] Figure 5 shows a top view of a brush assembly according to one embodiment of this application;

[0110] Figure 6 shows a schematic diagram of the cooperative movement of the first adapter and the second adapter when the roller brush assembly according to an embodiment of this application is in the initial mode.

[0111] Figure 7 shows a schematic diagram of the cooperative movement of the first adapter and the second adapter during the switching process from the initial mode to the first cleaning mode of the roller brush assembly according to an embodiment of this application.

[0112] Figure 8 shows a schematic diagram of the cooperative movement of the first adapter and the second adapter when the roller brush assembly according to one embodiment of the present application is in the first cleaning mode.

[0113] Figure 9 shows a schematic diagram of the cooperative movement of the first adapter and the second adapter when the roller brush assembly according to one embodiment of the present application is in the second cleaning mode.

[0114] Figure 10 shows a schematic diagram of the cooperative movement of the first adapter and the second adapter during the switching process from the second cleaning mode to the first cleaning mode of the roller brush assembly according to one embodiment of the present application.

[0115] Explanation of reference numerals in the attached drawings: 100 - Roller brush assembly; 110 - Top cover; 110a - Receiving cavity; 110b - First airflow port; 110c - Limiting groove; 120 - Roller brush; 130 - Blocking member; 130a - Second airflow port; 131 - Limiting protrusion; 140 - First drive assembly; 1401 - First limiting end; 1402 - Second limiting end; 141 - First adapter; 141a - Annular slide; 1411 - Adapter disc; 1412 - Limiting disc; 142 - First elastic member; 143 - Second elastic member; 144 - First transmission member; 150 - Second drive assembly; 151 - Second adapter; 151a - Mating protrusion; 152 - Second transmission member; 160 - Power source. Detailed Implementation

[0116] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. Clearly, the described embodiments are only a portion, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0117] The cleaning device provided in this application embodiment can be a floor sweeper. A floor sweeper is a device for cleaning floors. The cleaning function of a floor sweeper is mainly achieved through the high-speed rotation of a motor. The high-speed rotation of the motor can create a vacuum inside the machine, so that high-speed airflow can be used to suck dust, hair, and other dirt from the floor into the machine through the suction port. The dirt can be accumulated in a bag filter or dust box for convenient regular cleaning by the user.

[0118] Some sweeping machines can also be equipped with a mop and a water tank for wiping the floor after sweeping, thereby further improving the cleaning effect. The cleaning equipment in this application embodiment may only have sweeping functions, or it may have a combination of sweeping and wiping functions; this application embodiment is not limited to any particular function.

[0119] The roller brush assembly includes a top cover for securing the roller brush. This top cover can also be referred to as a roller brush holder or roller brush cover plate. The roller brush can be located within the cavity between the top cover and the surface to be cleaned. When the motor rotates at high speed, it rapidly draws in air from outside the top cover, increasing the airflow velocity inside and reducing the air pressure within the cavity between the top cover and the surface to be cleaned, creating a negative pressure environment. As the roller brush rotates, the bristles lift dust, hair, and other dirt from the surface to be cleaned, suspending them near the brush. This suspended dirt is then quickly drawn into the dust collection box by the negative pressure environment.

[0120] Compared to floors and tiles, carpets have a soft surface, making it easier for dirt, hair, and other grime to penetrate deeply into the carpet. In current technologies, cleaning equipment typically only provides light cleaning of the carpet surface with sufficient suction power, failing to achieve deep cleaning of the dirt inside the carpet, resulting in poor cleaning performance and a negative impact on user experience.

[0121] Based on the aforementioned technical problems, the applicant has improved the structure of existing roller brush assemblies. In this embodiment, the roller brush assembly is provided with a blocking member. The blocking member can be used to block the first airflow port between the top cover and the surface to be cleaned. Since part of the first airflow port is blocked to form a second airflow port, and the opening of the second airflow port is smaller than the opening of the first airflow port, when the surface to be cleaned is a carpet, the blocking member can improve the airtightness of the top cover at the second airflow port, so that a greater pressure difference can be generated at the second airflow port, thereby deeply cleaning the dirt inside the carpet and improving the cleaning effect on the carpet.

[0122] The roller brush assembly 100, chassis structure, cleaning equipment, and cleaning system provided in this application will now be described with reference to the accompanying drawings and specific embodiments.

[0123] Referring to Figures 1 to 5, the roller brush assembly 100 of this application embodiment may include an upper cover 110, a roller brush 120, and a shielding member 130.

[0124] The top cover 110 has a receiving cavity 110a facing the surface to be cleaned. A first airflow port 110b can be formed between the lower end face of the top cover 110 facing the surface to be cleaned and the surface to be cleaned. A portion of the roller brush 120 is located in the receiving cavity 110a, and the roller brush 120 can move relative to the top cover 110 to have a high position state and a low position state.

[0125] A shielding member 130 is disposed on the upper cover 110. The shielding member 130 is movable relative to the upper cover 110 to have a raised position and a lowered position. When the shielding member 130 is in the lowered position, the lower end face of the shielding member 130 extends beyond the lower end face of the upper cover 110. The shielding member 130 partially blocks a portion of the first airflow port 110b. A second airflow port 130a is formed between the lower end face of the shielding member 130 and the surface to be cleaned.

[0126] In this embodiment, the shielding member 130 is slidable relative to the upper cover 110 and has an upward position and a downward position, allowing the roller brush assembly 100 to have two cleaning states. When the shielding member 130 is in the upward position, dirt on the surface to be cleaned can be sucked through the first airflow port 110b. When the shielding member 130 is in the downward position, the lower end face of the shielding member 130 can block part of the first airflow port 110b to form a second airflow port 130a. At this time, dirt on the surface to be cleaned can be sucked through the second airflow port 130a.

[0127] Because part of the first airflow port 110b is blocked to form the second airflow port 130a, and the opening of the second airflow port 130a is smaller than the opening of the first airflow port 110b, the sealing of the roller brush assembly 100 at the second airflow port 130a when the blocking member 130 is in the descending position is higher than the sealing of the roller brush assembly 100 at the first airflow port 110b when the blocking member 130 is in the ascending position. When the blocking member 130 is in the descending position, it can have a stronger suction effect on the surface to be cleaned.

[0128] Therefore, when cleaning hard surfaces such as floors and tiles, since dirt such as dust and hair usually float on the surface, the shielding member 130 can be positioned in an upward position to suck up the dirt on the surface through the first airflow port 110b. When cleaning soft surfaces such as carpets, since dirt such as dust and hair tend to embed deeply into the interior of the surface, the shielding member 130 can be positioned in a downward position to deeply suck up the surface through the second airflow port 130a.

[0129] Furthermore, the roller brush 120 in this embodiment can also move relative to the upper cover 110 to have a high position and a low position. When the roller brush 120 is in the low position, it can contact the surface to be cleaned to clean it. When cleaning a soft surface such as a carpet or encountering an obstacle, the roller brush 120 can be moved to the high position. The contact depth between the roller brush 120 and the surface to be cleaned when the roller brush 120 is in the high position is less than the contact depth between the roller brush 120 and the surface to be cleaned when the roller brush 120 is in the low position. Alternatively, when the roller brush 120 is in the high position, there can be a gap between the roller brush 120 and the surface to be cleaned.

[0130] Specifically, when cleaning soft surfaces such as carpets, the roller brush 120 can be kept in a high position to prevent it from getting tangled with the carpet fibers, thus avoiding damage to the carpet or the roller brush 120. Alternatively, when encountering obstacles such as wire harnesses or thresholds, keeping the roller brush 120 in a high position can prevent the wire harnesses from getting tangled or colliding with the roller brush 120, thereby affecting the normal operation of the cleaning equipment.

[0131] Therefore, in this embodiment of the application, by moving the shield 130 relative to the top cover 110 and the roller brush 120 relative to the top cover 110, the cleaning device can be applied to different application scenarios, thereby reducing the possibility of cumbersome cleaning process and affecting user experience due to the replacement of accessories such as the roller brush assembly 100.

[0132] In some examples, the shield 130 may be located on the front side of the upper cover 110 along the direction of travel of the cleaning device. Alternatively, the shield 130 may also be located on both sides of the upper cover 110 along the direction of travel of the cleaning device. This application does not impose any limitations.

[0133] It should be noted that the number of roller brushes 120 is not limited in this embodiment. The number of roller brushes 120 can be one or two.

[0134] In some embodiments, the motion trajectory of the roller brush 120 switching between a high position state and a low position state may be, but is not limited to, a linear motion. For example, the roller brush 120 may rise or fall along the height direction of the roller brush assembly 100.

[0135] In some examples, the movement trajectory of the shield 130 between the rising and falling positions can be, but is not limited to, arcuate. For example, the shield 130 can flip upwards or downwards relative to the upper cover 110. When the upper cover 110 has an arcuate structure, the shield 130 can fit against the side wall of the upper cover 110. The shield 130 can slide along the side wall of the upper cover 110. The side wall can be the inner wall facing the roller brush 120 or the outer wall facing away from the roller brush 120, which is not limited in this embodiment.

[0136] In some implementations, the roller brush assembly 100 also includes a power source 160. The power source 160 is connected to the top cover 110. The power source 160 is used to drive the roller brush 120 to move between a high position and a low position, and to drive the shield 130 to move between a rising position and a falling position.

[0137] In this embodiment, the movement of the roller brush 120 and the movement of the shielding member 130 can be achieved by a single power source 160. Therefore, on the one hand, the roller brush assembly 100 can have a compact structure, which helps simplify the layout of the components on the roller brush assembly 100. On the other hand, it can also save on the cost of the roller brush assembly 100, thus reducing the product cost of the cleaning equipment.

[0138] In some examples, the power source 160 can be directly fixed to the upper cover 110, or the power source 160 can be connected to the upper cover 110 through other structures. This is not limited in the embodiments of this application.

[0139] Referring to Figures 1 to 5, this application embodiment provides a roller brush assembly 100. The roller brush assembly 100 may include an upper cover 110, a roller brush 120, a shielding member 130, a first drive assembly 140, and a second drive assembly 150.

[0140] The top cover 110 has a receiving cavity 110a facing the surface to be cleaned. A first airflow port 110b can be formed between the lower end face of the top cover 110 facing the surface to be cleaned and the surface to be cleaned. A portion of the roller brush 120 is located in the receiving cavity 110a. The roller brush 120 is used to clean the surface to be cleaned.

[0141] A shielding member 130 is disposed on the upper cover 110. The shielding member 130 is movable relative to the upper cover 110 to have a raised position and a lowered position. When the shielding member 130 is in the lowered position, the lower end face of the shielding member 130 extends beyond the lower end face of the upper cover 110. The shielding member 130 partially blocks a portion of the first airflow port 110b, and a second airflow port 130a is formed between the lower end face of the shielding member 130 and the surface to be cleaned.

[0142] A first drive assembly 140 is disposed on the upper cover 110, and the first drive assembly 140 is used to drive the shielding member 130 to move between a rising position and a falling position. A second drive assembly 150 is disposed on the upper cover 110, and the second drive assembly 150 is used to enable the roller brush 120 to have a high position state and a low position state, and the roller brush 120 can move between the high position state and the low position state.

[0143] The second drive component 150 and the first drive component 140 move in coordination.

[0144] In this embodiment, by providing the shielding member 130 with an upward position and a downward position, it can be used to change the size of the suction port formed between the roller brush assembly 100 and the surface to be cleaned (i.e., the opening of the first airflow port 110b is different from the opening of the second airflow port 130a), thereby changing the intensity of the negative pressure environment formed between the roller brush assembly 100 and the surface to be cleaned. This allows for cleaning of different types of surfaces, improving the applicability of the cleaning equipment and ensuring a good cleaning effect on different types of surfaces.

[0145] Improving the applicability of cleaning equipment can mean that different types of surfaces to be cleaned can be achieved with a single cleaning device and a set of roller brush assemblies 100, without the need to replace the cleaning device or roller brush assembly 100, which is beneficial to improving the user experience.

[0146] Furthermore, the roller brush 120 can move between a high position and a low position. When the surface to be cleaned is uneven, the roller brush 120 can be controlled to be in different positions to meet the contact depth with the surface to be cleaned, thereby ensuring the cleaning effect.

[0147] Specifically, when a portion of the surface to be cleaned is raised, the roller brush 120 can be raised a corresponding distance to reduce excessive contact between the roller brush 120 and the surface to be cleaned, thus reducing the possibility of damage to the roller brush 120 or the surface to be cleaned. When a portion of the surface to be cleaned is recessed, the roller brush 120 can be lowered a corresponding distance to maintain contact between the roller brush 120 and the surface to be cleaned, thereby ensuring the cleaning effect on the recessed areas of the surface to be cleaned.

[0148] The first drive assembly 140 can be used to drive the blocking member 130 to rise or fall to reach a raised or lowered position. The second drive assembly 150 can be used to cause the roller brush 120 to rise or fall to reach a high position and a low position. By setting the first drive assembly 140 and the second drive assembly 150 to move in coordination, the blocking member 130 and the roller brush 120 can be linked, and the structure of the roller brush assembly 100 can be made compact.

[0149] It should be noted that the coordinated movement of the first drive component 140 and the second drive component 150 can mean that the movement of the first drive component 140 can cause the second drive component 150 to move, thereby causing the roller brush 120 to move. Alternatively, the movement of the second drive component 150 can cause the first drive component 140 to move, thereby causing the blocking member 130 to move. This is not specifically limited in the embodiments of this application.

[0150] For example, when the cleaning device is moving across the surface to be cleaned without cleaning, the roller brush 120 can be in a high position and the shield 130 can be in a raised position. In cleaning mode, the roller brush 120 is in a low position. Depending on the application scenario, the shield 130 can be in a raised position or a lowered position.

[0151] Specifically, when cleaning hard surfaces such as floors and tiles, the shielding member 130 can be positioned in the raised position to suction and clean dirt from the surface through the first airflow port 110b. When cleaning soft surfaces such as carpets, the shielding member 130 can be positioned in the lowered position to perform deep suction and cleaning through the second airflow port 130a. Because part of the first airflow port 110b is blocked to form the second airflow port 130a, and the opening of the second airflow port 130a is smaller than the opening of the first airflow port 110b, the sealing of the roller brush assembly 100 at the second airflow port 130a is better when the shielding member 130 is in the lowered position than at the first airflow port 110b when the shielding member 130 is in the raised position. When the shielding member 130 is in the lowered position, it provides a stronger cleaning effect on the surface, making it suitable for cleaning surfaces where dirt tends to embed deeply, such as carpets.

[0152] It is easy to understand that, in this embodiment of the application, by adjusting the movement of the shield 130 between the rising position and the falling position, the magnitude of the suction force between the roller brush assembly 100 and the surface to be cleaned can be adjusted to be suitable for cleaning different types of surfaces to be cleaned. Therefore, the power of the power unit such as the fan or blower used to provide suction force can remain unchanged, which is beneficial to saving energy consumption.

[0153] It should be noted that the first drive assembly 140 can also be used to drive the shield 130 to stop at any position between the rising position and the falling position, so that the lower end face of the shield 130 forms a second airflow port 130a of different size between it and the surface to be cleaned, thereby allowing the roller brush assembly 100 to have different suction forces with the surface to be cleaned, so as to be suitable for more cleaning scenarios.

[0154] Additionally, it should be noted that the second drive component 150 can also be used to drive the roller brush 120 to stop at any position between the high position and the low position, so that the roller brush 120 can rise or fall different distances, thereby ensuring the contact depth between the roller brush 120 and the surface to be cleaned in different cleaning scenarios.

[0155] In some possible implementations, as shown in FIG3, the roller brush assembly 100 of this application embodiment has an initial mode, a first cleaning mode, and a second cleaning mode.

[0156] When the roller brush assembly 100 is in the initial mode, the roller brush 120 is in the high position and the shielding member 130 is in the rising position.

[0157] When the roller brush assembly 100 is in the first cleaning mode, the roller brush 120 is in a low position. The shield 130 is in the raised position. External airflow enters the upper cover 110 through the first airflow port 110b.

[0158] When the roller brush assembly 100 is in the second cleaning mode, the roller brush 120 is in a low position. The shield 130 is in the lowered position. External airflow enters the upper cover 110 through the second airflow port 130a.

[0159] In this embodiment of the application, the roller brush assembly 100 can have an initial mode, a first cleaning mode and a second cleaning mode through the coordinated movement of the first driving component 140 and the second driving component 150, thereby meeting different application scenarios.

[0160] During the process of the cleaning equipment moving to the cleaning position on the surface to be cleaned, the cleaning equipment may temporarily not start cleaning the surface to be cleaned, and the roller brush assembly 100 can be in the initial mode. At this time, the roller brush 120 can be in a high position and the shield 130 can be in an elevated position. This reduces the possibility of the roller brush 120 or the shield 130 getting tangled or colliding with obstacles on the surface to be cleaned during the movement of the cleaning equipment. On the other hand, it avoids the roller brush 120 from contacting the surface to be cleaned on the movement path, which could cause the roller brush 120 to become dirty before reaching the cleaning position, thus affecting the cleaning effect.

[0161] When the cleaning equipment moves to the cleaning position on the surface to be cleaned, the roller brush assembly 100 can start cleaning. When cleaning hard surfaces such as floors and tiles, the roller brush assembly 100 can be in the first cleaning mode. The second drive assembly 150 can lower the roller brush 120 to a low position to make contact between the roller brush 120 and the surface to be cleaned. The first drive assembly 140 can keep the shield 130 in the raised position. During the cleaning process, a negative pressure environment is generated in the cavity of the upper cover 110. Under the action of negative pressure, the airflow outside the roller brush assembly 100 can draw dirt on the surface to be cleaned into the upper cover 110 through the first airflow port 110b, and then into the dust box via the roller brush 120.

[0162] When cleaning soft surfaces such as carpets, dirt tends to embed deeply, requiring increased suction. In this case, the roller brush assembly 100 can be put into a second cleaning mode. The second drive can lower the roller brush 120 to a low position, allowing it to contact the surface. The first drive assembly 140 can lower the blocking member 130 to a lowered position. The blocking member 130 partially blocks the first airflow port 110b, forming a second airflow port 130a, thereby increasing the negative pressure at the second airflow port 130a. During the cleaning process, dirt on the surface can be powerfully sucked up for deep cleaning.

[0163] In some feasible ways, the suction force of the external airflow through the second airflow port 130a is greater than the suction force through the first airflow port 110b.

[0164] In this embodiment, a first airflow port 110b is formed between the lower end face of the upper cover 110 and the surface to be cleaned. When the blocking member 130 is in the lowered position, the lower end face of the blocking member 130 extends beyond the lower end face of the upper cover 110. At this time, a second airflow port 130a is formed between the lower end face of the blocking member 130 and the surface to be cleaned. In other words, the blocking member 130 can partially block the first airflow port 110b to form the second airflow port 130a. Therefore, the size of the first airflow port 110b is larger than the size of the second airflow port 130a.

[0165] It is easy to understand that the smaller size of the second airflow port 130a results in a better seal between the upper cover 110 and the surface to be cleaned. Therefore, the suction force of the upper cover 110 at the second airflow port 130a is greater than the suction force of the upper cover 110 at the first airflow port 110b when the obstruction 130 is in the raised position. By generating a stronger suction force at the second airflow port 130a, the ability to carry dirt on the surface to be cleaned can be improved, allowing deeply embedded dirt such as hair and dust to be sucked into the dust box.

[0166] It is easy to understand that the suction power of the roller brush assembly 100 in the second cleaning mode is greater than that in the first cleaning mode. Therefore, when deep cleaning is required, the roller brush assembly 100 can be set to the second cleaning mode.

[0167] In some feasible ways, as shown in Figures 2 and 3, the size of the second airflow port 130a is smaller than the size of the first airflow port 110b along the height direction of the roller brush assembly 100.

[0168] In this embodiment, when the shielding member 130 is in the lowered position, the distance between the lower end face of the shielding member 130 facing the surface to be cleaned and the surface to be cleaned can be less than the distance between the lower end face of the upper cover 110 and the surface to be cleaned. Therefore, on the one hand, the shielding member 130 can increase the sealing between the roller brush assembly 100 and the surface to be cleaned, thereby increasing the internal and external pressure difference of the upper cover 110 at the second airflow port 130a, and thus improving the suction force on the dirt on the carpet surface to be cleaned. On the other hand, the shielding member 130 can block the airflow to a certain extent, so that more airflow can flow between the roller brush 120 and the surface to be cleaned, thereby improving the suction force on the dirt on the surface to be cleaned.

[0169] In this embodiment, the distance between the shielding member 130 and the surface to be cleaned is not limited when the shielding member 130 is in the raised or lowered position. This distance can be limited based on the cleaning environment, the size of the cleaning waste, and other factors.

[0170] In some possible implementations, referring to Figures 1, 4, and 5, the first drive assembly 140 includes a first adapter 141. The first adapter 141 is connected to the shield 130. The second drive assembly 150 includes a second adapter 151. The second adapter 151 is connected to the roller brush 120.

[0171] The first adapter 141 and the second adapter 151 cooperate to move. The first adapter 141 moves to drive the second adapter 151 to move. Alternatively, the first adapter 141 moves to provide space for the second adapter 151 to move.

[0172] In this embodiment, the coordinated movement of the first adapter 141 and the second adapter 151 means that the driving force for the movement of the second adapter 151 can come from the first adapter 141. In other words, the movement of the first adapter 141 can drive the second adapter 151 to move synchronously. Alternatively, the driving force for the movement of the second adapter 151 can also come from other structures. For example, after the first rotating member moves a certain distance, it can provide movement space for the second rotating member, so that the second rotating member can, under the action of the brush 120 itself or other structures, allow the brush 120 to move between a high position state and a low position state.

[0173] In some possible implementations, as shown in Figures 2, 3, and 6 through 10, one of the first adapter 141 and the second adapter 151 is provided with an annular slide 141a. The annular slide 141a has a first limiting end 1401 and a second limiting end 1402. The other of the first adapter 141 and the second adapter 151 is provided with a mating protrusion 151a. The mating protrusion 151a is slidable within the annular slide 141a.

[0174] In this embodiment, the forward or reverse rotation of the first adapter 141 can raise or lower the shielding member 130. The movement trajectory of the first adapter 141 is arc-shaped. By using the arc-shaped movement trajectory of the first adapter 141 to raise and lower the shielding member 130 in the height direction of the roller brush assembly 100, the raising and lowering of the shielding member 130 can be achieved by occupying a relatively small amount of internal space on the roller brush assembly 100. The arc-shaped movement trajectory also has a space-saving effect.

[0175] Similarly, the forward or reverse rotation of the second adapter 151 can raise or lower the roller brush 120. The movement trajectory of the second adapter 151 is an arc. By using the arc-shaped movement trajectory of the second adapter 151 to raise or lower the roller brush 120, the raising and lowering of the roller brush 120 can be achieved by occupying a small amount of internal space on the roller brush assembly 100.

[0176] The rotation of the first adapter 141 drives the blocking member 130 to switch between an upward and a downward position. Furthermore, the rotation of the first adapter 141 also causes the second adapter 151 to rotate, thereby allowing the roller brush 120 to move between a high and a low position. Therefore, the relative rotation of the first adapter 141 and the second adapter 151 enables the linkage between the blocking member 130 and the roller brush 120.

[0177] In some examples, the first adapter 141 may be provided with a mating protrusion 151a. The second adapter 151 may be provided with an annular slide 141a. Alternatively, the first adapter 141 may be provided with an annular slide 141a, and the second adapter 151 may be provided with a mating protrusion 151a, which is not limited in the embodiments of this application.

[0178] For example, this application embodiment takes a first adapter 141 with an annular slide 141a and a second adapter 151 with a mating protrusion 151a as an example, and describes the direction with reference to Figures 6 to 10. Solid arrows indicate the direction of movement of the annular slide 141a, and dashed arrows indicate the direction of movement of the mating protrusion 151a.

[0179] Referring to Figure 6, when the roller brush assembly 100 is in the initial mode, the mating protrusion 151a is connected to the first limiting end 1401 of the annular slide 141a. The mating protrusion 151a and the first limiting end 1401 can have a relative force, so that the mating protrusion 151a can remain stationary within the annular slide 141a. The first adapter 141 and the second adapter 151 are relatively stationary. The blocking member 130 can be held in the raised position, and the roller brush 120 can be held in the high position.

[0180] Since the roller brush 120 needs to be in a low position during the cleaning process, in the initial mode, the roller brush 120 can always maintain a downward movement trend to facilitate the roller brush assembly 100 switching from the initial mode to the first cleaning mode or the second cleaning mode. The downward movement trend of the roller brush 120 can be maintained by the gravity of the roller brush 120. Under the action of gravity, the cooperating protrusion 151a and the first limiting end 1401 can remain in contact.

[0181] When the roller brush assembly 100 activates the first cleaning mode, for example, when cleaning surfaces such as floors or tiles, the roller brush 120 needs to be lowered, and the shield 130 can remain in the raised position. Referring to Figures 6 to 8, at this time, the first adapter 141 can be controlled to rotate counterclockwise. The first limiting end 1401 of the annular slide 141a on the first adapter 141 rotates away from the mating protrusion 151a. Through the movement of the first adapter 141, the annular slide 141a provides space for the mating protrusion 151a to move. At this time, the mating protrusion 151a is no longer abutted by the first limiting end 1401, and can rotate counterclockwise under the weight of the roller brush 120, allowing the roller brush 120 to descend to its low position and clean the surface to be cleaned.

[0182] It should be noted that when the roller brush 120 reaches the low position, it contacts the surface to be cleaned, and therefore, the roller brush 120 will not continue to descend. In other words, the mating protrusion 151a will not continue to rotate counterclockwise. At this time, the mating protrusion 151a and the first limiting end 1401 can be connected or have a gap, which is not limited in this embodiment.

[0183] Additionally, it should be noted that in the first cleaning mode, the counterclockwise rotation of the first adapter 141 is primarily to provide rotatable space for the mating protrusion 151a, allowing the roller brush 120 to descend. During this stroke, the first adapter 141 will not cause the shielding member 130 to descend.

[0184] When the roller brush assembly 100 switches from the first cleaning mode to the second cleaning mode, for example, when cleaning a carpet or other surface awaiting cleaning, the roller brush 120 can remain lowered, causing the shielding member 130 to also move downwards to the lowered position. Referring to Figures 8 and 9, at this time, the first adapter 141 can be controlled to continue rotating counterclockwise. The first adapter 141 can drive the shielding member 130 downwards to the lowered position.

[0185] In some possible implementations, referring to Figures 4 and 5, the first driving assembly 140 of this application embodiment may include a first elastic member 142. The first elastic member 142 connects the first adapter 141 and the blocking member 130. The first adapter 141 drives the first elastic member 142 to deform in order to drive the blocking member 130 to rise to a raised position.

[0186] In this embodiment, the first elastic member 142 can provide tension to the blocking member 130, so that when the roller brush assembly 100 is in the initial mode, the blocking member 130 can move in the direction of the rising position and remain in the rising position. When the blocking member 130 moves in the direction of the rising position, the first elastic member 142 can gradually generate elastic deformation. When the blocking member 130 is in the rising position, the elastic deformation generated by the first elastic member 142 is the maximum, so that the blocking member 130 can be held in the rising position.

[0187] Referring to the directions shown in Figures 7 and 8, when cleaning the carpet surface awaiting cleaning, the shielding member 130 needs to be lowered to increase the suction force on the surface to be cleaned. The roller brush assembly 100 can activate the second cleaning mode. At this time, the first adapter 141 can be controlled to rotate counterclockwise. Part of the counterclockwise rotation of the first adapter 141 can provide rotational space for the second adapter 151 so that the roller brush 120 is in a low position. It should be noted that during this part of the stroke, the tension of the first elastic member 142 gradually decreases. However, the first elastic member 142 can still keep the shielding member 130 in the raised position. In other words, the decrease in tension of the first elastic member 142 is insufficient to make the shielding member 130 move downward under the action of gravity. Therefore, by continuing the counterclockwise rotation of the first adapter 141, the first elastic member 142 can continue to release the tension on the shielding member 130. When the tension of the first elastic element 142 on the blocking element 130 is 0, the blocking element 130 can reach the lowering position under its own gravity.

[0188] In some examples, the first elastic element 142 may be, but is not limited to, a tension spring. A tension spring can provide the pulling force required to the blocking element 130; it has a simple structure, low cost, and good reliability.

[0189] In some possible implementations, referring to Figures 4 and 5, the first drive assembly 140 further includes a second elastic element 143. One end of the second elastic element 143 is connected to the shield 130. The other end of the second elastic element 143 is connected to the upper cover 110. The second elastic element 143 has a first deformation and a second deformation.

[0190] When the blocking member 130 is in the raised position, the second elastic member 143 has a first deformation. When the blocking member 130 is in the lowered position, the second elastic member 143 has a second deformation. The first deformation is greater than the second deformation.

[0191] In this embodiment, the second elastic element 143 can be used to drive the blocking element 130 downward to the descending position. Therefore, the blocking element 130 can quickly reach the descending position under its own weight and the action of the second elastic element 143, which helps to improve the smoothness of the descending process of the blocking element 130.

[0192] Therefore, the first elastic element 142 can be used to provide an upward force to the blocking element 130, and the second elastic element 143 can be used to provide a downward force to the blocking element 130. Specifically, when the blocking element 130 is in the raised position, since the first elastic element 142 can provide a pulling force to the blocking element 130 to keep it in the raised position, the pulling force of the first elastic element 142 is greater than or equal to the sum of the elastic force of the second elastic element 143 and the weight of the blocking element 130. At this time, the second elastic element 143 generates a first deformation between the upper cover 110 and the blocking element 130 to accumulate elastic potential energy.

[0193] When the roller brush assembly 100 is in the first cleaning mode, the roller brush 120 can be lowered by the counterclockwise rotation of the first adapter 141 in conjunction with the movement of the second adapter 151. During this process, the tension of the first elastic member 142 can be gradually released, and the tension of the first elastic member 142 gradually decreases. However, the first elastic member 142 can still keep the shielding member 130 in the raised position.

[0194] As the first adapter 141 continues to rotate counterclockwise, the roller brush assembly 100 switches from the first cleaning mode to the second cleaning mode. At this time, the tension of the first elastic element 142 continues to decrease. When the tension of the first elastic element 142 is less than the sum of the elastic force of the second elastic element 143 and the weight of the blocking element 130, the second elastic element 143 can release its elastic potential energy to drive the blocking element 130 to move towards the downward position.

[0195] Correspondingly, referring to Figures 9 and 10, when it is necessary to raise the shield 130, the roller brush assembly 100 can switch from the second cleaning mode to the first cleaning mode. At this time, the first adapter 141 can be controlled to rotate clockwise, so that the first elastic member 142 gradually generates a pulling force. When the pulling force of the first elastic member 142 can overcome the weight of the shield 130 and the elastic force of the second elastic member 143, the first elastic member 142 can cause the shield 130 to move in the direction of the rising position until it reaches the rising position.

[0196] It should be noted that during the switching process of the roller brush assembly 100 from the second cleaning mode to the first cleaning mode, the clockwise rotation of the first adapter 141 will not affect the second adapter 151. The second adapter 151 can remain stationary so that the roller brush 120 remains in the low position.

[0197] When the shield 130 is in the raised position and the roller brush 120 also needs to be raised, the roller brush assembly 100 can switch from the first cleaning mode to the initial mode. At this time, referring to Figures 10 and 6, the first adapter 141 can be controlled to continue rotating clockwise. The clockwise rotation of the first adapter 141 causes the annular slide 141a on the first adapter 141 to gradually approach the mating protrusion 151a on the second adapter 151. When the first limiting end 1401 of the annular slide 141a is connected to the mating protrusion 151a, the continued clockwise rotation of the first adapter 141 can provide driving force to the second adapter 151, so that the second adapter 151 can drive the roller brush 120 upward to reach the high position (Figure 6).

[0198] In some examples, the second elastic element 143 may be, but is not limited to, a compression spring. When the first elastic element 142 undergoes tensile deformation, the second elastic element 143 may undergo compressive deformation to accumulate elastic potential energy. When the tensile deformation of the first elastic element 142 gradually decreases to 0, the second elastic element 143 may release the elastic potential energy so that the blocking element 130 can reach the lowered position.

[0199] In some possible implementations, when the elastic force of the first elastic member 142 is greater than the elastic force of the second elastic member 143, the first elastic member 142 causes the blocking member 130 to be in the raised position. When the elastic force of the second elastic member 143 is greater than the elastic force of the first elastic member 142, the second elastic member 143 causes the blocking member 130 to be in the lowered position.

[0200] In this embodiment, the first elastic member 142 can be used to provide an upward force for the blocking member 130, and the second elastic member 143 can be used to provide a downward force for the blocking member 130. Therefore, through the cooperation of the first elastic member 142 and the second elastic member 143, the blocking member 130 can move between the upward position and the downward position.

[0201] Specifically, when the elastic force of the first elastic member 142 is greater than the elastic force of the second elastic member 143, the blocking member 130 can move upward under the action of the elastic force of the first elastic member 142. When the elastic force of the first elastic member 142 is less than the elastic force of the second elastic member 143, the blocking member 130 can move downward under the action of the elastic force of the second elastic member 143.

[0202] In some possible implementations, referring to Figures 4 and 5, the shield 130 is slidably connected to the upper cover 110. One of the shield 130 and the upper cover 110 may be provided with a limiting groove 110c. The other of the shield 130 and the upper cover 110 may be provided with a limiting protrusion 131 that can slide within the limiting groove 110c. When the shield 130 slides relative to the upper cover 110, the limiting protrusion 131 and the limiting groove 110c can cooperate with each other, allowing the upper cover 110 to move along the path of the limiting groove 110c, thereby maintaining the stability of the upper cover 110 during movement.

[0203] In some examples, one end of the second elastic member 143 may abut against the limiting protrusion 131. The other end of the second elastic member 143 may abut against the inner wall of the limiting groove 110c. This inner wall is opposite to the limiting protrusion 131 along the deformation direction of the second elastic member 143.

[0204] As the tension of the first elastic element 142 gradually decreases, the distance between the limiting protrusion 131 and the inner wall decreases, causing the second elastic element 143 to undergo compressive deformation and accumulate elastic potential energy. As the tension of the first elastic element gradually increases, the distance between the limiting protrusion 131 and the inner wall increases, and the second elastic element 143 can release its elastic potential energy to drive the blocking element 130 to move to a lower position.

[0205] In this embodiment, the specific structure of the limiting protrusion 131 and the limiting groove 110c is not limited. There can be multiple limiting protrusions 131 and limiting grooves 110c. Furthermore, the structures of the multiple limiting protrusions 131 and the multiple limiting grooves 110c can not be completely identical.

[0206] In some possible implementations, referring to Figures 4 and 5, the first drive assembly 140 may further include a first transmission member 144. One end of the first transmission member 144 is connected to the first adapter 141. The other end of the first transmission member 144 is connected to the shield 130. The first transmission member 144 may be tightened or extended relative to the first adapter 141 to drive the first elastic member 142 to deform or return to its original position.

[0207] In this embodiment, the rotation of the first adapter 141 can transmit power through the first transmission member 144. When the first transmission member 144 is tightened on the first adapter 141, the first elastic member 142 can deform, and the blocking member 130 can maintain the upward position or move in the direction of the upward position. When at least part of the first transmission member 144 is released from the first adapter 141, the first elastic member 142 can be reset. The blocking member 130 can move to the downward position.

[0208] Specifically, in the initial mode, the first transmission member 144 of the roller brush assembly 100 has a relatively large length around the first adapter 141, so that the first elastic member 142 exerts a pulling force on the blocking member 130, thereby keeping the blocking member 130 in the raised position. During the switching process from the initial mode to the first cleaning mode or the second cleaning mode, the first transmission member 144 can be partially released by rotating the first adapter 141 counterclockwise, reducing the length of the first transmission member 144 around the first adapter 141, thereby gradually releasing the elastic force (pulling force) of the first elastic member 142. When the elastic force of the first elastic member 142 is less than the elastic force of the second elastic member 143, the blocking member 130 can move to a lower position.

[0209] When the roller brush assembly 100 switches from the second cleaning mode to the first cleaning mode, the first adapter 141 can rotate clockwise, which can tighten part of the first transmission member 144, thereby increasing the length of the first transmission member 144 wrapped around the first adapter 141. The first transmission member 144 can provide a lifting force to the shielding member 130 through the first elastic member 142, so that the shielding member 130 has an upward movement tendency. When the elastic force of the first elastic member 142 on the shielding member 130 is greater than the sum of the elastic force of the second elastic member 143 on the shielding member 130 and the weight of the shielding member 130, the first elastic member 142 can pull the shielding member 130 upward and reach the raised position.

[0210] In some examples, the first transmission element 144 may be, but is not limited to, a pull rope.

[0211] In some possible implementations, as shown in Figures 4 and 5, the second drive assembly 150 may further include a second transmission member 152. One end of the second transmission member 152 is connected to the second adapter 151. The other end of the second transmission member 152 is connected to the roller brush 120. The second transmission member 152 is tightened or extended relative to the second adapter 151 to drive the roller brush 120 to a high position or a low position.

[0212] In this embodiment, the movement of the second adapter 151 can be powered by the second transmission member 152. A portion of the second transmission member 152 can be wound around the second adapter 151. Clockwise or counterclockwise rotation of the second adapter 151 can cause the second transmission member 152 to tighten or extend relative to the second adapter 151, allowing the roller brush 120 to rise to a high position or descend to a low position.

[0213] Specifically, when the second adapter 151 rotates counterclockwise, it can release part of the second transmission member 152, causing the second transmission member 152 to extend relative to the second adapter 151, thereby gradually lowering the roller brush 120 to a low position. When the second adapter 151 rotates clockwise, it can tighten part of the second adapter 151, causing the second transmission member 152 to tighten relative to the second adapter 151, thereby pulling the roller brush 120 up to a high position.

[0214] In some examples, the second transmission element 152 may be, but is not limited to, a pull rope.

[0215] In some possible implementations, the annular slide 141a may be located at the first adapter 141. The travel distance of the first adapter 141 may be at least the sum of the travel distance of the brush 120 in the high position and the low position, and the travel distance of the shield 130 in the rising position and the falling position.

[0216] In this embodiment, during the switching of the roller brush assembly 100 from the initial mode to the first cleaning mode, a portion of the counterclockwise rotation of the first adapter 141 provides space for the second adapter 151 to move, allowing the roller brush 120 to move between a high position and a low position. Therefore, the travel distance of the first adapter 141 in this segment is equal to the travel distance of the roller brush 120 between the high and low positions. During the switching of the roller brush assembly 100 from the first cleaning mode to the second cleaning mode, a further portion of the counterclockwise rotation of the first adapter 141 allows the shielding member 130 to move between a rising position and a falling position. Therefore, the travel distance of the first adapter 141 in this segment is equal to the travel distance of the shielding member 130 between the rising and falling positions.

[0217] In summary, the travel distance of the first adapter 141 is at least the sum of the maximum travel distance of the roller brush 120 and the maximum travel distance of the shield 130.

[0218] In some possible implementations, referring to Figures 4 and 5, the roller brush assembly 100 of this embodiment may further include a power source 160. The first drive assembly 140 and the second drive assembly 150 may share a power source 160. One of the first drive assembly 140 and the second drive assembly 150 moves synchronously with the power source 160.

[0219] In this embodiment of the application, the first drive component 140 and the second drive component 150 move in coordination. Therefore, when one of the first drive component 140 and the second drive component 150 is connected to the power source 160, the other of the first drive component 140 and the second drive component 150 can move.

[0220] It is easy to understand that since the first drive assembly 140 and the second drive assembly 150 can share a single power source 160, the structure of the roller brush assembly 100 can be made compact, which helps to simplify the layout of the components on the roller brush assembly 100. Furthermore, it can also save on the cost of the roller brush assembly 100, thus helping to reduce the product cost of the cleaning equipment.

[0221] It should be noted that, in this embodiment, the power source 160 can directly provide power to the first drive assembly 140, so that the blocking member 130 can move between the rising position and the falling position. Since the first drive assembly 140 and the second drive assembly 150 cooperate to move, when the first drive assembly 140 moves, the second drive assembly 150 can move, so that the roller brush 120 can move between the high position state and the low position state.

[0222] Similarly, the power source 160 can also directly provide power to the second drive assembly 150, so that the roller brush 120 can move between a high position and a low position. Therefore, when the second drive assembly 150 moves, it can cause the first drive assembly 140 to move, so that the blocking member 130 can move between a rising position and a falling position.

[0223] In some examples, the power source 160 can be connected to the first adapter 141 via a pivot to drive the first adapter 141 to rotate clockwise or counterclockwise.

[0224] In some possible implementations, referring to Figure 5, the first adapter 141 may include a connected adapter disk 1411 and a limiting disk 1412. For example, the adapter disk 1411 and the limiting disk 1412 may be detachably connected. The adapter disk 1411 may be used to directly connect to the power source 160. Along the axial direction of the adapter disk 1411, a second adapter 151 may be located between the adapter disk 1411 and the limiting disk 1412. The limiting disk 1412 may be used to prevent the second adapter 151 from disengaging from the first adapter 141, which would prevent them from engaging in transmission and thus affect the movement of the shield 130 and the roller brush 120.

[0225] In some examples, along the axial direction of the adapter disk 1411, the limiting disk 1412 may be located close to the central region of the shield 130.

[0226] In some examples, the annular slide 141a may be disposed on the transition disk 1411. A portion of the first transmission member 144 may be disposed around the limiting disk 1412 so that the first transmission member 144 does not need to be arranged to be very long, so as to facilitate the cooperation between the first transmission member 144 and the first elastic member 142.

[0227] This application provides a chassis structure, which may include a chassis body and the roller brush assembly 100 in any of the above embodiments. The roller brush assembly 100 may be located at the bottom of the chassis body.

[0228] In some examples, the roller brush assembly 100 may be detachably connected to the chassis body.

[0229] In some examples, the chassis structure may also include cleaning modules such as side brushes and cloths. The cleaning modules may be located on the side of the chassis body facing the surface to be cleaned.

[0230] This application provides a cleaning device. The cleaning device may include a chassis structure.

[0231] This application also provides a cleaning system. The cleaning system may include a base station and cleaning equipment. The cleaning equipment may be placed on the base station.

[0232] The base station can have a charging function. When cleaning equipment is placed on the base station, the base station can charge the cleaning equipment.

[0233] Base stations can also have cleaning functions. When cleaning equipment is placed on a base station, it can clean the roller brush 120, mop, side brush, and other structures on the cleaning equipment.

[0234] It should be noted that the numerical values ​​and ranges involved in this application are approximate values. Due to the influence of the manufacturing process, there may be a certain range of errors, which can be considered negligible by those skilled in the art.

[0235] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0236] In the description of this application, it should be understood that the terms “center,” “length,” “width,” “thickness,” “top,” “bottom,” “upper,” “lower,” “left,” “right,” “front,” “rear,” “vertical,” “horizontal,” “inner,” “outer,” “axial,” and “circumferential,” etc., used to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the indicated position or component must have a specific orientation, or a specific structure and operation, and therefore should not be construed as a limitation of the present invention.

[0237] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0238] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in a sequence other than those illustrated or described herein.

[0239] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0240] The term "multiple" in this article refers to two or more. The term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this article generally indicates an "or" relationship between the preceding and following related objects; in formulas, the character " / " indicates a "division" relationship between the preceding and following related objects.

[0241] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

[0242] It is understood that, in the embodiments of this application, the order of the above-mentioned process numbers does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

Claims

1. A roller brush assembly (100), characterized in that, include: The upper cover (110) has a receiving cavity (110a) facing the surface to be cleaned, and a first airflow port (110b) is formed between the lower end face of the upper cover (110) facing the surface to be cleaned and the surface to be cleaned. A roller brush (120), part of which is located in the receiving cavity (110a), is movable relative to the upper cover (110) to have a high position state and a low position state; A shielding member (130) is disposed on the upper cover (110). The shielding member (130) is movable relative to the upper cover (110) to have a rising position and a falling position. When the shielding member (130) is in the falling position, the lower end face of the shielding member (130) extends beyond the lower end face of the upper cover (110). Part of the shielding member (130) blocks part of the first airflow port (110b). A second airflow port (130a) is formed between the lower end face of the shielding member (130) and the surface to be cleaned.

2. The roller brush assembly (100) according to claim 1, characterized in that, It also includes a power source (160) connected to the upper cover (110), the power source (160) being used to drive the roller brush (120) to move between the high position and the low position, and the power source (160) being used to drive the shield (130) to move between the rising position and the falling position.

3. A roller brush assembly (100), characterized in that, include: The upper cover (110) has a receiving cavity (110a) facing the surface to be cleaned, and a first airflow port (110b) is formed between the lower end face of the upper cover (110) facing the surface to be cleaned and the surface to be cleaned. A roller brush (120), a portion of which is located in the receiving cavity (110a), is used to clean the surface to be cleaned; A shielding member (130) is disposed on the upper cover (110). The shielding member (130) is movable relative to the upper cover (110) to have a rising position and a falling position. When the shielding member (130) is in the falling position, the lower end face of the shielding member (130) extends beyond the lower end face of the upper cover (110). Part of the shielding member (130) blocks part of the first airflow port (110b). A second airflow port (130a) is formed between the lower end face of the shielding member (130) and the surface to be cleaned. A first drive assembly (140) is disposed on the upper cover (110) and is used to drive the shield (130) to move between the rising position and the falling position. A second drive assembly (150) is disposed on the upper cover (110). The second drive assembly (150) is used to enable the roller brush (120) to have a high position state and a low position state, and the roller brush (120) moves between the high position state and the low position state. The first drive component (140) and the second drive component (150) move in coordination.

4. The roller brush assembly (100) according to claim 1 or 3, characterized in that, The roller brush assembly (100) has an initial mode, a first cleaning mode, and a second cleaning mode; When the roller brush assembly (100) is in the initial mode, the roller brush (120) is in the high position state and the shielding member (130) is in the rising position. When the roller brush assembly (100) is in the first cleaning mode, the roller brush (120) is in the low position, the shield (130) is in the rising position, and the external airflow enters the upper cover (110) through the first airflow port (110b). When the roller brush assembly (100) is in the second cleaning mode, the roller brush (120) is in a low position, the shield (130) is in the lowered position, and the external airflow enters the upper cover (110) through the second airflow port (130a).

5. The roller brush assembly (100) according to claim 1 or 3, characterized in that, The suction force of the external airflow through the second airflow port (130a) is greater than the suction force through the first airflow port (110b).

6. The roller brush assembly (100) according to claim 1 or 3, characterized in that, Along the height direction of the roller brush assembly (100), the size of the second airflow port (130a) is smaller than the size of the first airflow port (110b).

7. The roller brush assembly (100) according to claim 3, characterized in that, It also includes a power source (160), the first drive component (140) and the second drive component (150) share a power source (160), and one of the first drive component (140) and the second drive component (150) moves synchronously with the power source (160).

8. The roller brush assembly (100) according to claim 7, characterized in that, The first drive assembly (140) includes a first adapter (141) connected to the shield (130), and the second drive assembly (150) includes a second adapter (151) connected to the roller brush (120). The first adapter (141) and the second adapter (151) cooperate to move. The first adapter (141) moves to drive the second adapter (151) to move, or the first adapter (141) moves to provide space for movement of the second adapter (151).

9. The roller brush assembly (100) according to claim 8, characterized in that, One of the first adapter (141) and the second adapter (151) is provided with an annular slide (141a), the annular slide (141a) having a first limiting end (1401) and a second limiting end (1402), and the other of the first adapter (141) and the second adapter (151) is provided with a mating protrusion (151a), the mating protrusion (151a) being slidable within the annular slide (141a).

10. The roller brush assembly (100) according to claim 8, characterized in that, The first drive assembly (140) includes a first elastic element (142) that connects the first adapter (141) and the shield (130). The first adapter (141) drives the first elastic element (142) to deform in order to drive the shield (130) to rise to the rising position.

11. The roller brush assembly (100) according to claim 10, characterized in that, The first drive assembly (140) further includes a second elastic element (143), one end of which is connected to the shield (130), and the other end of which is connected to the upper cover (110). The second elastic element (143) has a first deformation and a second deformation. When the blocking member (130) is in the rising position, the second elastic member (143) has the first deformation; when the blocking member (130) is in the falling position, the second elastic member (143) has the second deformation; the first deformation is greater than the second deformation.

12. The roller brush assembly (100) according to claim 11, characterized in that, When the elastic force of the first elastic element (142) is greater than the sum of the elastic force of the second elastic element (143) and the weight of the blocking element (130), the first elastic element (142) causes the blocking element (130) to move in the direction of the rising position; when the elastic force of the second elastic element (143) is greater than the elastic force of the first elastic element (142), the second elastic element (143) causes the blocking element (130) to move in the direction of the falling position.

13. The roller brush assembly (100) according to claim 11, characterized in that, The first elastic element (142) is a tension spring; and / or, the second elastic element (143) is a compression spring.

14. The roller brush assembly (100) according to claim 11, characterized in that, The first drive assembly (140) further includes a first transmission member (144), one end of which is connected to the first adapter (141), and the other end of which is connected to the first elastic member (142). The first transmission member (144) is tightened or extended relative to the first adapter (141) to drive the first elastic member (142) to deform or reset.

15. The roller brush assembly (100) according to claim 8, characterized in that, The second drive assembly (150) further includes a second transmission member (152), one end of which is connected to the second adapter (151), and the other end of which is connected to the roller brush (120). The second transmission member (152) is tightened or extended relative to the second adapter member (151) to drive the roller brush (120) to the high position or the low position.

16. The roller brush assembly (100) according to claim 9, characterized in that, The annular slide (141a) is located at the first adapter (141), and the travel distance of the first adapter (141) is at least the sum of the travel distance of the roller brush (120) in the high position and the low position and the travel distance of the shield (130) in the rising position and the falling position.

17. The roller brush assembly (100) according to claim 8, characterized in that, The first adapter (141) includes a connected adapter disk (1411) and a limiting disk (1412), wherein the adapter disk (1411) is connected to the power source (160); Along the axial direction of the adapter disk (1411), the second adapter (151) is located between the adapter disk (1411) and the limiting disk (1412).

18. A chassis structure, characterized in that, include: Chassis body; The roller brush assembly (100) as claimed in any one of claims 1 to 17, wherein the roller brush assembly (100) is located at the bottom of the chassis body.

19. A cleaning device, characterized in that, Includes the chassis structure as described in claim 18.

20. A cleaning system, characterized in that, include: Base station; And the cleaning device as described in claim 19, wherein the cleaning device may be placed on the base station.

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