Floor brush components, cleaning equipment

Abstract

This application provides a floor brush assembly and a cleaning device. The floor brush assembly includes: a housing; a suction channel and a water supply pipe inside the housing; the suction channel is configured to connect to a negative pressure source via a wastewater tank; a roller brush installed inside the housing, forming a suction port with the bottom of the housing that communicates with the suction channel; when the floor brush assembly is in operation, cleaning water flows from the water supply pipe to wet the roller brush, and the roller brush generates wastewater after rolling on the surface to be cleaned. A negative pressure is created in the wastewater tank in response to the activation of the negative pressure source, and the wastewater is sucked into the wastewater tank from the suction port through the suction channel; a check mechanism installed inside the housing; wherein the check mechanism closes in response to the operation of the floor brush assembly, blocking the suction channel; and the check mechanism opens in response to the operation of the floor brush assembly, opening the suction channel. This application can reduce the problem of secondary pollution of the ground after the cleaning equipment stops cleaning, improving the user experience.

Description

Technical Field

[0001] The embodiments in this application relate to the field of cleaning equipment technology, and in particular to a floor brush assembly and cleaning equipment. Background Technology

[0002] Currently, some cleaning equipment, such as floor scrubbers, typically use a negative pressure source within the equipment to continuously provide negative pressure during operation. Under this negative pressure, wastewater and dirt can be sucked into the wastewater tank from the suction port of the floor scrubber component through the suction channel.

[0003] However, in actual use, when the cleaning equipment stops working, as the negative pressure source no longer provides negative pressure, the sewage that was not sucked into the sewage tank in time, as well as the sewage adhering to the inner wall of the suction channel, is prone to flow back to the ground, causing secondary pollution on the already cleaned ground and affecting the user experience. Utility Model Content

[0004] In view of this, several embodiments of this application aim to provide a floor brush component and cleaning equipment that can reduce the problem of secondary pollution of the ground after the cleaning equipment stops working, and improve the user experience.

[0005] One embodiment of this application provides a floor brush assembly, comprising: a housing; a suction channel and a water supply pipe provided within the housing; the suction channel being configured to connect to a negative pressure source via a wastewater tank; a roller brush installed within the housing, and having a suction port connecting to the suction channel between the roller brush and the bottom of the housing; when the floor brush assembly is in operation, cleaning water flows out from the water supply pipe to wet the roller brush, and the roller brush generates wastewater after rolling on the surface to be cleaned; the wastewater tank forms a negative pressure in response to the activation of the negative pressure source, and the wastewater is sucked into the wastewater tank from the suction port through the suction channel; and a check mechanism installed within the housing; wherein the check mechanism closes in response to the operation of the floor brush assembly, blocking the suction channel; and the check mechanism opens in response to the operation of the floor brush assembly, opening the suction channel.

[0006] Optionally, the check mechanism includes a sealing element; the sealing element moves to a sealing position within the suction channel in response to the floor brush assembly being closed, and moves away from the sealing position in response to the floor brush assembly being open; wherein the sealing element located at the sealing position forms a sealing fit with the inner wall of the suction channel to achieve the sealing of the suction channel.

[0007] Optionally, the check mechanism further includes a drive device disposed within the housing; the drive device drives the sealing member to the sealing position in response to the working state of the floor brush assembly being closed, or drives the sealing member to leave the sealing position in response to the working state of the floor brush assembly being open.

[0008] Optionally, the housing forms a receiving space outside the suction channel for accommodating the sealing member; wherein, in response to the activation of the floor brush assembly, the drive device drives the sealing member to move to the receiving position within the receiving space.

[0009] Optionally, the sealing member and the driving device form a pivotal connection; wherein, under the driving action of the driving device, the sealing member rotates along the pivot axis to move between the sealing position and the receiving position.

[0010] Optionally, when the floor brush assembly is in the off state, the check valve blocks the suction channel in response to the disappearance of suction in the suction channel; when the floor brush assembly is in the on state, the check valve opens the suction channel in response to the generation of suction in the suction channel.

[0011] Optionally, the check mechanism includes a blocking member; when the floor brush assembly is in the working state, the blocking member is located in the open position that opens the suction channel; when the floor brush assembly is closed, the blocking member moves from the open position to the blocking position of the suction channel in response to the disappearance of suction in the suction channel; wherein, the blocking member located in the blocking position forms a sealing fit with the inner wall of the suction channel to achieve the blocking of the suction channel.

[0012] Optionally, one end of the sealing member is pivotally fixed to the inner wall of the suction channel and flips along the pivot axis; the sealing member responds to the suction force generated in the suction channel and flips to the conduction position along the airflow direction under the push of the airflow.

[0013] Optionally, in response to the disappearance of suction in the suction channel, the sealing member flips to the sealing position under the action of gravity.

[0014] Optionally, the inner wall of the suction channel forms a step at the blocking position; the blocking member abuts against the step when it is in the blocking position; wherein, the blocking member and the step are further provided with magnetic elements; the magnetic elements are used to apply a magnetic attraction force to the blocking member to keep it abutting against the step when it is in the blocking position.

[0015] Optionally, the sealing member is further connected to an elastic element; when the sealing member is in the sealing position, the elastic element is in its natural state; when the sealing member is in the conducting position, the elastic element deforms; in response to the disappearance of suction in the suction channel, the sealing member flips to the sealing position under the restoring force of the elastic element.

[0016] Optionally, the elastic element is a torsion spring; the torsion spring is disposed on the pivot shaft.

[0017] Optionally, the check valve mechanism includes an inlet end and an outlet end, and is fixed within the suction channel via the inlet end; the inlet end is located near the suction port and communicates with the suction channel; wherein, an airflow channel is formed between the inlet end and the outlet end; when the check valve mechanism is in its natural state, the outlet end of the airflow channel is closed; in response to the generation of suction in the suction channel, the outlet end deforms to open the airflow channel, thereby opening the suction channel; in response to the disappearance of suction in the suction channel, the outlet end returns to its natural state to block the suction channel.

[0018] Optionally, a water storage area is formed at the bottom of the suction channel; wherein the sealing position is located between the suction port and the water storage area.

[0019] Optionally, a water storage area is formed at the bottom of the suction channel; wherein, when the sealing member is in the sealing position, the sealing member abuts against the side wall of the water storage area near the suction port to form a sealing fit.

[0020] One embodiment of this application provides a cleaning device including the floor brush assembly as described above.

[0021] The embodiments provided in this application provide a check mechanism within the housing of the floor brush assembly. This check mechanism can block or open the suction channel within the floor brush assembly in response to the working state of the floor brush assembly. This ensures that when the cleaning equipment stops cleaning, the suction channel connected to the suction port is blocked by the check mechanism, preventing at least a portion of the sewage from flowing back to the suction port. Furthermore, when the cleaning equipment starts cleaning, the check mechanism can open the blocked suction channel, allowing sewage and dirt to be sucked into the sewage tank through the suction port and suction channel under negative pressure. This does not affect the normal operation of the cleaning equipment and reduces the problem of secondary pollution of the ground caused by sewage backflow after the cleaning equipment stops working, thereby improving the user experience. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a floor brush assembly provided in one embodiment of this application.

[0023] Figure 2 This is a schematic diagram showing the sealing element in the sealing position of a floor brush assembly provided in one embodiment of this application.

[0024] Figure 3 This is a schematic diagram showing the sealing element in the receiving position of a floor brush assembly provided in one embodiment of this application.

[0025] Figure 4 This is a partial schematic diagram of a check mechanism from another perspective in one embodiment of this application.

[0026] Figure 5 This is a schematic diagram showing the sealing element in the conductive position of a floor brush assembly provided in another embodiment of this application.

[0027] Figure 6 This is a schematic diagram showing the sealing element in the sealing position of a floor brush assembly provided in another embodiment of this application.

[0028] Figure 7 and Figure 8 A partial schematic diagram of the sealing element from another perspective in another embodiment of this application.

[0029] Figure 9 and Figure 10 This is a schematic diagram showing the sealing element in the sealing position of a floor brush assembly provided in another embodiment of this application.

[0030] Figure 11 This is a partial schematic diagram of the sealing element from another perspective in yet another embodiment of this application.

[0031] Figure 12 This is a schematic diagram of a floor brush assembly provided in yet another embodiment of this application.

[0032] Figure 13 This is a partial schematic diagram of a check mechanism from another perspective in yet another embodiment of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100. Floor brush assembly; 110. Housing; 111. Suction channel; 120. Roller brush; 130. Suction port; 140. Suction pipe; 150. Check valve; 151. Sealing component; 1511. Main body; 1512. Elastic sealing component; 152. Drive unit; 160. Receiving space; 170. Water storage area; 180. Stepped section; 190. Magnetic component; 210. Elastic component; 220. Inlet end; 230. Outlet end. Detailed Implementation

[0035] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0036] In this application, the accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features.

[0037] Unless otherwise stated, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items. The singular forms "a," "the," and "the" as used in embodiments of this application are also intended to include the plural forms unless the context clearly indicates otherwise.

[0038] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0039] In the description of this application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this application and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. In other words, they should not be construed as limitations on this application.

[0040] In the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "linking," "fixing," "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to 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 this application according to the specific circumstances.

[0041] Currently, some cleaning equipment, such as floor scrubbers, typically integrate a floor brush assembly and a wastewater tank. When the cleaning equipment is in operation, the floor brush assembly uses the rapid rolling of the roller brush to sweep and scrub the floor. The resulting dirt, such as wastewater and solids, is sucked into the wastewater tank under the negative pressure provided by the negative pressure source of the cleaning equipment, thus achieving floor cleaning. Specifically, dirt usually enters the suction channel inside the floor brush assembly housing through the suction port. Since the suction channel is configured to connect to the negative pressure source via the wastewater tank, the dirt can be drawn into the wastewater tank by the suction airflow under negative pressure. After water and vapor separation, the dirt is stored in the wastewater tank, achieving dirt collection.

[0042] However, in actual use, cleaning equipment is prone to backflow of wastewater from the brush assembly back onto the floor, causing secondary contamination and requiring a second cleaning, resulting in inconvenience and a poor user experience. This problem arises because when the cleaning equipment is turned off, the negative pressure provided by the negative pressure source disappears. However, some wastewater remains that hasn't been sucked into the wastewater tank and adheres to the inner wall of the suction channel. If the cleaning equipment shakes, this residual wastewater easily flows back towards the suction port and onto the floor. Especially in some scenarios, after cleaning, users need to move the cleaning equipment, such as returning it to its base for charging or disassembling and cleaning. During this process, the brush assembly may tilt relative to gravity, making it even more likely for wastewater to flow out of the suction port.

[0043] To address the aforementioned issues, while related technologies employ a delayed negative pressure source shutdown solution—that is, after the cleaning equipment is shut down, the negative pressure source remains on for a period of time before being turned off—to ensure that residual wastewater is sucked into the wastewater tank, thus preventing backflow, or a water storage area can be installed within the suction channel to temporarily store the residual wastewater for suction when the cleaning equipment is turned on again, these solutions all have certain drawbacks. For example, the delayed negative pressure source shutdown solution typically requires a relatively long delay to achieve good results, thus incurring additional waiting time for the user and consuming more electricity, thus affecting the user experience. Furthermore, the water storage area within the suction channel can still lead to wastewater backflow and secondary pollution if the cleaning equipment shakes significantly or tilts during handling or movement.

[0044] Therefore, it is necessary to provide a floor brush assembly and cleaning equipment that can effectively reduce secondary pollution of the ground caused by wastewater backflow after the cleaning equipment is turned off, thereby improving the user experience.

[0045] Please see Figures 1 to 4 One embodiment of this application provides a floor brush assembly 100, including a housing 110 and a roller brush 120. The floor brush assembly 100 can be integrated into cleaning equipment, such as a robotic vacuum cleaner, a floor scrubber, or a self-cleaning base station. Specifically, for example, in a floor scrubber, the floor brush assembly 100 can be located at the front of the machine body, serving as a cleaning execution component of the floor scrubber. By rotating or rolling to conform to the floor, it achieves functions such as sweeping, vacuuming, mopping, and wastewater recycling.

[0046] In this embodiment, the roller brush 120 can be installed inside the housing 110. Specifically, the roller brush 120 can be installed inside the housing 110 near the ground, so that when the floor brush assembly 100 is working, the roller brush 120 can roll on the ground to perform cleaning.

[0047] A suction port 130 can be formed between the roller brush 120 and the bottom of the housing 110. Specifically, when the bottom brush assembly 100 is working, under the rotation of the roller brush 120 and the negative pressure of the suction port 130, dirt can be collected in the suction port 130 and sucked into the housing 110.

[0048] In this embodiment, the housing 110 is provided with a water supply pipe for delivering cleaning water to the surface to be cleaned to achieve the mopping function of the cleaning equipment. The surface to be cleaned can be the surface of the area to be cleaned on the ground. When the floor brush assembly 100 is in working condition, cleaning water flows out of the water supply pipe to wet the roller brush 120, causing the roller brush 120 to generate wastewater after rolling over the surface to be cleaned. The generated wastewater may include the cleaning water flowing out of the water supply pipe, some wastewater formed after the roller brush 120 is contaminated when it rolls, and some wastewater that was already present on the surface to be cleaned as the roller brush 120 rolled over.

[0049] Specifically, one end of the water supply pipe can be connected to the outlet of the clean water tank, and the other end can be connected to the roller brush 120, so that the clean water flowing out of the water supply pipe can be delivered to the roller brush 120 and wet it. For example, in some embodiments, the water supply pipe can be connected to the surface of the roller brush 120 through a water distributor to improve the efficiency and uniformity of water supply to the roller brush 120. In this embodiment, the water distributor can also be set inside the roller brush 120, so that the clean water delivered by the water supply pipe can be diverted at the root of the cloth of the roller brush 120. Of course, in some embodiments, the other end of the water supply pipe can also be connected to the surface to be cleaned, so that the clean water is delivered to the surface to be cleaned, and the roller brush 120 is wetted after rolling over the surface to be cleaned.

[0050] In this embodiment, a suction channel 111 communicating with the suction port 130 is provided inside the housing 110. The suction channel 111 can be located at the bottom of the housing 110 and close to the suction port 130. Specifically, the cleaning device integrating the floor brush assembly 100 can also be provided with a wastewater tank and a negative pressure source. The wastewater tank can generate negative pressure in response to the activation of the negative pressure source to achieve suction of dirt. The suction channel 111 can be configured to communicate with the negative pressure source via the wastewater tank. Thus, when the floor brush assembly 100 is in working condition, the generated wastewater and dirt can be sucked into the wastewater tank from the suction port 130 through the suction channel 111 under the guidance of negative pressure.

[0051] Specifically, the end of the suction channel 111 away from the suction port 130 can be connected to the wastewater tank. For example, in this embodiment, the end of the suction channel 111 away from the suction port 130 can be connected to the wastewater tank by connecting to the suction pipe 140. One end of the suction pipe 140 can be located inside the housing 110 and connected to the suction channel 111, while the other end of the suction pipe 140 can extend into the wastewater tank. Thus, when the floor brush assembly 100 is in operation, dirt enters from the suction port 130, and under negative pressure, it can be carried by the suction airflow through the suction channel 111 into the suction pipe 140, and finally into the wastewater tank. Of course, in some possible embodiments, the suction pipe 140 may not be provided, and the suction channel 111 inside the housing 110 can be directly connected to the wastewater tank.

[0052] When the floor brush assembly 100 is turned off, due to the disappearance of the negative pressure provided by the negative pressure source of the cleaning equipment, some wastewater remains inside the floor brush assembly 100 that was not sucked into the wastewater tank in time, as well as some wastewater adhering to the inner wall of the suction pipe 140 or the suction channel 111. This residual wastewater is prone to backflow into the suction port 130 during the handling and movement of the cleaning equipment, causing secondary pollution to the ground.

[0053] In this embodiment, a check mechanism 150 may also be provided inside the housing 110 to prevent sewage from flowing back into the suction port 130 after the floor brush assembly 100 is turned off, thereby reducing secondary pollution.

[0054] In this embodiment, the check valve mechanism 150 may include a plugging member 151 and a drive device 152, such as a motor, for driving the plugging member 151. The drive device 152 and the plugging member 151 can form a pivotal connection, and the drive device 152 and the plugging member 151 can be respectively positioned at different locations along the pivot shaft. When the drive device 152 operates, it directly drives the pivot shaft to rotate, causing the plugging member 151 to rotate along the pivot shaft, thereby driving the plugging member 151.

[0055] In this embodiment, the check valve 150 can block the suction channel 111 in response to the shutdown of the floor brush assembly 100 to prevent at least a portion of the sewage from flowing back to the suction port 130. Specifically, when the floor brush assembly 100 is shut down, the drive device 152 can drive the sealing member 151 to move to the sealing position within the suction channel 111 after receiving a corresponding electrical signal, so that airflow is not allowed to pass through the suction channel 111, thereby blocking the suction channel 111.

[0056] Among them, such as Figure 2 As shown, the blocking position can be a position within the suction channel 111 where the blocking member 151, when in this position, can block or close the communication between the suction port 130 and the suction channel 111. When the blocking member 151 is in the blocking position, the blocking member 151 and the inner wall of the suction channel 111 can form a sealing fit to block the suction channel 111. For example, in some embodiments, the shape and contour of the blocking member 151 and the inner wall of the suction channel 111 can match each other so that the blocking member 151 can fit tightly against the inner wall of the suction channel 111 in the blocking position.

[0057] Thus, when the user stops using the cleaning equipment, in response to the shutdown of the floor brush assembly 100, the sealing member 151, which moves to the sealing position, can effectively block the backflow path of sewage, thereby preventing the sewage remaining in the floor brush assembly 100 from flowing back to the suction port 130.

[0058] In some embodiments, the sealing position can be close to the suction port 130, so that when the floor brush assembly 100 is turned off, the sewage flowing back to the suction port 130 can be basically blocked by the sealing member 151.

[0059] In this embodiment, when the user needs to restart the floor brush assembly 100 for cleaning, the check mechanism 150 can also respond to the activation of the floor brush assembly 100's working state and open the blocked suction channel 111, so that the suction path of sewage from the suction port 130 to the sewage tank is not affected. Specifically, when the floor brush assembly 100's working state is activated, the drive device 152 can also drive the blocking member 151 to leave the blocking position after receiving the corresponding electrical signal. In this way, the originally closed suction channel 111 can be opened, that is, airflow can be allowed to pass through the suction channel 111, so that the dirt sucked in from the suction port 130 can be sucked into the sewage tank with the airflow.

[0060] In some embodiments, after leaving the blocking position, the blocking member 151 can be driven by the driving device 152 to other positions within the suction channel 111, such as a position that fits against the inner wall of the suction channel 111. This application does not impose specific limitations on this, as long as the position of the blocking member 151 after leaving the blocking position allows the suction channel 111 to be open.

[0061] In this embodiment, when the ground brush assembly 100 is in operation, the drive device 152 can also drive the sealing member 151 from the sealing position to outside the suction channel 111, so that the airflow can pass smoothly after the suction channel 111 is opened. Specifically, the housing 110 has a receiving space 160 outside the suction channel 111 for accommodating the sealing member 151. When the ground brush assembly 100 is in operation, the drive device 152 can drive the sealing member 151 to the receiving position within the receiving space 160. Figure 3 As shown, the sealing member 151 in the receiving position can avoid the airflow in the suction channel 111, so as to avoid the suction power being weakened due to the sealing member 151 occupying the space in the suction channel 111.

[0062] In this embodiment, the sealing member 151 may include a main body 1511 and an elastic sealing part 1512. The main body 1511 extends outward from a pivot axis, and the elastic sealing part 1512 is sleeved on the end of the main body 1511 away from the pivot axis. In some embodiments, when the sealing member 151 is in the sealing position or the receiving position, the elastic sealing part 1512 can form an interference fit with the inner wall of the suction channel 111 or the receiving space 160, respectively. Thus, when the ground brush assembly 100 is in an operating state or a non-operating state, the sealing member 151 can be stably positioned in the receiving position or the sealing position, avoiding any impact on the conduction or sealing effect of the suction channel 111. For example, in some scenarios, when the floor brush assembly 100 is off, the sealing member 151 moves to the sealing position. If the user lifts the cleaning equipment at this time, the floor brush assembly 100 may shake, and the sealing member 151 may easily leave the sealing position, resulting in the suction channel 111 not being completely blocked, and sewage can still flow back to the suction port 130 through the suction channel 111. By setting the elastic sealing part 1512, the stability of the sealing member 151 when it is in the sealing position is improved, so that the sealing member 151 will not leave the sealing position due to the movement or shaking of the floor brush assembly 100, thus ensuring the sealing effect of the suction channel 111.

[0063] It should be noted that other connection and driving methods can also be used between the driving device 152 and the sealing member 151 to achieve the movement of the sealing member 151. For example, in some possible embodiments, the receiving position and the sealing position can be located on the same linear motion trajectory, and the driving device 152 can be connected to the sealing member 151 by a linkage or slide rail transmission, so that the sealing member 151 can be controlled to move between the receiving position and the sealing position under the drive of the driving device 152.

[0064] Please see Figures 5 to 8 Another embodiment of this application provides a floor brush assembly 100. The floor brush assembly 100 in this embodiment differs from the previous embodiment in that it includes a check mechanism 150, which is different from the previous embodiment. In this embodiment, the check mechanism 150 can block the suction channel 111 in response to the disappearance of suction in the suction channel 111, and can open the suction channel 111 in response to the generation of suction in the suction channel 111. Thus, when the floor brush assembly 100 is in the working state of being open or closed, the check mechanism 150 can achieve the functions of the previous embodiment without the need for a drive device 152, which is beneficial for the lightweight design of the floor brush assembly 100 and the cleaning equipment.

[0065] In this embodiment, the check mechanism 150 may include a blocking member 151. Similar to the aforementioned embodiments, the blocking member 151 is movable between a blocking position that seals the suction channel 111 and a conducting position that opens the suction channel 111, thereby controlling the opening or closing of the suction channel 111. The blocking position is located inside the suction channel 111. The conducting position may be located inside the suction channel 111, and in some embodiments, it may also be located outside the suction channel 111. Specifically, when the ground brush assembly 100 is in the working state, the blocking member 151 is in the conducting position to open the suction channel 111, allowing sewage and waste to be sucked into the sewage tank under negative pressure. When the ground brush assembly 100 is closed, in response to the disappearance of the negative pressure provided by the negative pressure source, the suction force in the suction channel 111 disappears, and the blocking member 151 can move from the conducting position to the blocking position, forming a sealing fit with the inner wall of the suction channel 111 to seal the suction channel 111. When the local brush component 100 is in working condition, in response to the negative pressure source being activated and generating negative pressure, the sealing component 151 moves from the sealing position to the conducting position.

[0066] In this embodiment, one end of the sealing member 151 can be pivotally fixed to the inner wall of the suction channel 111, while the other end is not fixed, allowing the sealing member 151 to rotate along the pivot axis. For example, refer to... Figure 7 and Figure 8The sealing element 151 can be a baffle, with one end of it away from the bottom of the housing 110 pivotally fixed to the inner wall of the housing 110, and the other end of it can be freely rotated along the pivot axis. It should be noted that the sealing element 151 and the pivot axis can be integrally formed or coaxially sleeved together.

[0067] Specifically, the axis of the pivot shaft can be at an angle to the flow direction of the airflow within the suction channel 111. Optionally, the axis of the pivot shaft may lie in a plane perpendicular to the flow direction of the airflow within the suction channel 111.

[0068] In this embodiment, in response to the suction force generated in the suction channel 111, the sealing member 151 can be flipped to the open position along the airflow direction under the push of the airflow. For example, Figure 5 and Figure 6 When suction is generated in the suction channel 111, the sealing member 151 flips away from the suction port 130 and reaches the opening position along the direction of the generated airflow.

[0069] In this embodiment, as Figure 5 As shown, the guiding position can be a position where the sealing member 151 is in equilibrium due to the airflow pushing effect and its own gravity within the suction channel 111. For example, one end of the sealing member 151 can be pivotally fixed to the top inner wall of the suction channel 111. When the suction force within the suction channel 111 provided by the floor brush assembly 100 is strong, the guiding position can be a position where the sealing member 151 flips over to fit against the top inner wall of the suction channel 111. When the suction force within the suction channel 111 provided by the floor brush assembly 100 is relatively weak, the flipping height of the sealing member 151 at the guiding position will be relatively lower. This application does not limit the specific location of the guiding position within the suction channel 111, as long as airflow can pass through the suction channel 111.

[0070] In this embodiment, in response to the disappearance of suction in the suction channel 111, the sealing member 151 can flip to the sealing position under the action of gravity. For example, refer to Figure 6 and combined Figure 5 When the brush assembly 100 is in operation, the sealing member 151 is always in the open position under the continuous airflow in the suction channel 111. When the brush assembly 100 is turned off, as the suction in the suction channel 111 stops and the airflow disappears, the sealing member 151 can flip from the open position to the side closer to the suction port 130 based on its own gravity and thus reach the sealing position.

[0071] In this embodiment, a water storage area 170 is formed at the bottom of the suction channel 111. The water storage area 170 is used to store at least a portion of the wastewater that flows back to the suction port 130 when the floor brush assembly 100 is in the off working state. Specifically, the water storage area 170 can be located between the suction pipe 140 and the suction port 130 within the floor brush assembly 100. The position of the check mechanism 150 can be configured to cooperate with the water storage area 170. When the sealing member 151 is in the sealing position, the sealing member 151 can abut against the side wall of the water storage area 170 near the suction port 130 to form a sealing fit.

[0072] In some embodiments, the sealing position can be located between the suction port 130 and the water storage area 170, so that the sealing position is closer to the suction port, and can block more backflowing sewage when the local brush assembly 100 is turned off.

[0073] In this embodiment, to ensure that the sealing member 151 can close the suction channel 111 when in the sealing position, a step portion 180 can be provided on the inner wall at the bottom of the suction channel 111. The step portion 180 is located on the path of the sealing member 151 as it flips from the open position towards the side near the suction port 130, so that when the floor brush assembly 100 is closed in the working state, the sealing member 151 abuts against the step portion 180 to be in the sealing position. The step portion 180 can be formed by the side wall of the water storage area 170 near the suction port 130 and the bottom inner wall of the suction channel 111.

[0074] However, the problem that arises is that the sealing of the suction channel 111 by the sealing member 151 abutting against the step portion 180 is not stable enough. For example, gaps are easily created when the floor brush assembly 100 moves or shakes, causing sewage to still flow back to the suction port 130 through the gaps.

[0075] For this purpose, please refer to Figure 9 and Figure 10 In some embodiments, the sealing member 151 and the step portion 180 are further provided with a magnetic member 190. When the sealing member 151 is in the sealing position, the magnetic member 190 can apply a magnetic attraction force to the sealing member 151 to maintain contact with the step portion 180, so that the contact state formed between the sealing member 151 and the step portion 180 has higher stability and is less likely to produce gaps due to movement or shaking of the floor brush assembly 100. Of course, the magnetic attraction force provided by the magnetic member 190 is less than the attraction force generated by the floor brush assembly 100 when it is turned on in the working state, so that the sealing member 151 can release the contact state with the step portion 180 to open the suction channel 111.

[0076] Please see Figure 11 and combined Figure 5 and Figure 6Another embodiment of this application provides a floor brush assembly 100. The floor brush assembly 100 in this embodiment differs from the one in the previous embodiment in that the anti-return mechanism 150 of the floor brush assembly 100 includes a sealing member 151 connected to an elastic member 210. When the sealing member 151 is in the sealing position, the elastic member 210 is in its natural state; when the sealing member 151 is in the open position, the elastic member 210 deforms, for example, by being stretched, compressed, twisted, or bent. In response to the disappearance of suction in the suction channel 111, the sealing member 151 can flip back to the sealing position under the elastic restoring force of the elastic member 210.

[0077] Specifically, such as Figure 11 As shown, the sealing member 151 is pivotally connected to the inner wall of the suction channel 111. The two ends of the pivot shaft along its axial direction can be fixed to the inner wall of the suction channel 111 by torsion springs. When the sealing member 151 is in the sealing position, the torsion spring is in its natural state. As the sealing member 151 flips to the open position in response to the suction force generated within the suction channel 111, the torsion spring can be gradually twisted and deformed. When the suction force in the suction channel 111 disappears, the sealing member 151 can return to the sealing position under the elastic restoring force of the torsion spring, thus sealing the suction channel 111.

[0078] It should be noted that the torsion spring in this embodiment is not limited to being located at both ends of the pivot shaft; it can be located at any suitable position along the axial direction of the pivot shaft, and can be flexibly designed according to actual structural needs. Furthermore, in this embodiment, it is not limited to using a torsion spring to fix the sealing member 151; other elastic elements 210, such as springs, can also be used instead. Of course, the connection method between different elastic elements 210 and the sealing member 151 may differ. For example, a tension or compression spring can be used to fix the unpivoted end of the sealing member 151 to the inner wall of the suction channel 111. The spring is in its natural state when the sealing member 151 is in the blocking position, and in a stretched or compressed state when the sealing member 151 is in the conducting position. When the suction force in the suction channel 111 disappears, the sealing member 151 can also flip back to the blocking position under the elastic restoring force of the spring.

[0079] In this embodiment, by adding an elastic element 210 to fix the sealing element 151, not only can the stability of the sealing element 151 in the sealing position be improved, ensuring that the sewage suction channel 111 is in a closed state, preventing gaps from appearing in the sealing position due to the movement or shaking of the floor brush assembly 100, thereby causing sewage backflow, but the efficiency of the sealing element 151 flipping between the guiding position and the sealing position can also be improved.

[0080] Please see Figure 12 and Figure 13Another embodiment of this application provides a floor brush assembly 100. The floor brush assembly 100 in this embodiment differs from those in the previous embodiments in that it includes a check mechanism 150, which is different from those in the previous embodiments. In this embodiment, unlike the previous embodiments, the check mechanism 150 can control the opening or blocking of the suction channel 111 based on its own deformation.

[0081] In this embodiment, the check valve mechanism 150 may include an inlet end 220 and an outlet end 230. In its natural state, the inlet end 220 of the check valve mechanism 150 is open, and the outlet end 230 is closed. The opening diameter of the check valve mechanism 150 gradually decreases along the extension direction from the outlet end 230 to the inlet end 220. The check valve mechanism 150 can be fixed within the suction channel 111 via the inlet end 220, with the inlet end 220 located near the suction port 130 and communicating with the suction channel 111. The outlet end 230 is located away from the suction port 130.

[0082] Specifically, an airflow channel can be formed between the inlet end 220 and the outlet end 230. When the check mechanism 150 is in its natural state, the airflow channel is closed at the outlet end 230. This means that the suction channel 111 is blocked by the check mechanism 150, preventing airflow. In response to the suction force generated in the suction channel 111, the outlet end 230 deforms under negative pressure to open the airflow channel, allowing airflow to enter from the inlet end 220 and pass through the outlet end 230. When the floor brush assembly 100 is in operation, the opening diameter of the check mechanism 150 at the outlet end 230 can be the same as that at the inlet end 220, allowing sewage and debris in the suction channel 111 to pass smoothly with the airflow. In response to the disappearance of suction in the suction channel 111, the outlet end 230 can return to its natural state based on its elastic restoring force, thus blocking the suction channel 111. In this embodiment, the working mechanism of the check valve 150, which controls the blocking or opening of the suction channel 111, is similar to the principle of the duckbill valve controlling unidirectional flow.

[0083] The embodiments provided in this application provide a check mechanism 150 within the housing 110 of the floor brush assembly 100. This check mechanism 150 can be closed or opened in response to the working state of the floor brush assembly 100, blocking or opening the suction channel 111 within the floor brush assembly 100. This ensures that when the cleaning equipment stops cleaning, the suction channel 111 connected to the suction port 130 is blocked by the check mechanism 150, thus preventing at least a portion of the sewage from flowing back to the suction port 130. Furthermore, when the cleaning equipment starts cleaning, the check mechanism 150 can open the blocked suction channel 111, allowing sewage and dirt to be sucked into the sewage tank through the suction port 130 and the suction channel 111 under negative pressure. This does not affect the normal operation of the cleaning equipment and reduces the problem of secondary pollution of the ground caused by sewage backflow after the cleaning equipment stops working, thereby improving the user experience.

[0084] Another embodiment of this application also provides a cleaning device, including a floor brush assembly as described in any of the foregoing embodiments.

[0085] In some embodiments, the cleaning equipment may be a floor scrubber, which may include other functional components in addition to the floor brush assembly described above, such as a clean water tank, a wastewater tank, a suction assembly, a separation assembly, etc.

[0086] It is understood that the specific examples in this document are only intended to help those skilled in the art better understand the embodiments of this application, and are not intended to limit the scope of the invention.

[0087] It is understood that in the various embodiments of this application, the sequence number of each process 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.

[0088] It is understood that the various embodiments described in this application can be implemented individually or in combination, and the embodiments of this application are not limited in this respect.

[0089] It is understood that in the description of this application, when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it may mean that it is directly above another layer or region, or that it contains other layers or regions between itself and another layer or region. Furthermore, if the component is flipped, the layer or region will be located "below" or "under" another layer or region.

[0090] The above description is merely a specific embodiment of this application, but the protection scope of this invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the protection scope of this application.

Claims

1. A floor brush assembly characterized by, include: case; The housing is equipped with a sludge suction channel and a water supply pipeline; the sludge suction channel is configured to connect to a negative pressure source via a sewage tank. A roller brush is installed inside the housing and has a suction port that communicates with the suction channel between it and the bottom of the housing. When the floor brush assembly is in operation, the water supply pipe flows out cleaning water to wet the roller brush. After the roller brush rolls on the surface to be cleaned, it generates wastewater. In response to the activation of the negative pressure source, a negative pressure is formed in the wastewater tank. The wastewater is sucked into the wastewater tank from the suction port through the suction channel. A check mechanism is installed inside the housing; wherein the check mechanism closes in response to the working state of the floor brush assembly, blocking the suction channel; The anti-return mechanism is activated in response to the working state of the floor brush assembly, thereby opening the suction channel.

2. The brush assembly of claim 1, wherein, The check mechanism includes a sealing element; The sealing component moves to a sealing position within the suction channel in response to the floor brush assembly being closed, and moves away from the sealing position in response to the floor brush assembly being open. The sealing element located at the sealing position forms a sealing fit with the inner wall of the suction channel to achieve the sealing of the suction channel.

3. The brush assembly of claim 2, wherein, The check mechanism further includes a drive device disposed within the housing; the drive device drives the sealing member to the sealing position in response to the working state of the floor brush assembly being closed, or drives the sealing member to leave the sealing position in response to the working state of the floor brush assembly being open.

4. The brush assembly of claim 3, wherein, The housing forms a receiving space outside the suction channel for accommodating the sealing member; wherein, in response to the operation of the floor brush assembly, the driving device drives the sealing member to move to the receiving position within the receiving space.

5. The brush assembly of claim 4, wherein, The sealing member and the driving device form a pivotal connection; wherein, under the driving action of the driving device, the sealing member rotates along the pivot axis to move between the sealing position and the receiving position.

6. The brush assembly of claim 1, wherein, When the floor brush assembly is turned off, the check valve blocks the suction channel in response to the disappearance of suction. When the floor brush assembly is turned on, the check valve opens the suction channel in response to the generation of suction.

7. The brush assembly of claim 6, wherein, The check mechanism includes a sealing element; when the floor brush assembly is in operation, the sealing element is located in the open position that allows the suction channel to be opened; When the floor brush assembly is turned off, the sealing member moves from the open position to the sealing position of the suction channel in response to the disappearance of suction in the suction channel; wherein, the sealing member located at the sealing position forms a sealing fit with the inner wall of the suction channel to achieve the sealing of the suction channel.

8. The brush assembly of claim 7, wherein, One end of the sealing member is pivotally fixed to the inner wall of the suction channel and flips along the pivot axis; the sealing member responds to the suction force generated in the suction channel and flips to the conduction position along the airflow direction under the push of the airflow.

9. The brush assembly of claim 8, wherein, In response to the disappearance of suction in the suction channel, the sealing member flips to the sealing position under the action of gravity.

10. The brush assembly of claim 9, wherein, The inner wall of the suction channel forms a step at the sealing position; the sealing member abuts against the step when it is in the sealing position; wherein, the sealing member and the step are also provided with magnetic elements; the magnetic elements are used to apply a magnetic attraction force to the sealing member to keep it abutting against the step when it is in the sealing position.

11. The brush assembly of claim 8, wherein, The sealing member is also connected to an elastic element; when the sealing member is in the sealing position, the elastic element is in a natural state; when the sealing member is in the conducting position, the elastic element deforms. In response to the disappearance of suction in the suction channel, the sealing member flips to the sealing position under the restoring force of the elastic member.

12. The brush assembly of claim 11, wherein, The elastic element is a torsion spring; the torsion spring is located on the pivot shaft.

13. The brush assembly of claim 6, wherein, The check valve mechanism includes an inlet end and an outlet end, and is fixed in the suction channel through the inlet end; the inlet end is located near the suction port and communicates with the suction channel; wherein, an airflow channel is formed between the inlet end and the outlet end; when the check valve mechanism is in its natural state, the outlet end of the airflow channel is closed. In response to the suction force generated in the suction channel, the outlet end deforms to open the airflow channel, thereby enabling the suction channel to be open. In response to the disappearance of suction in the suction channel, the outlet end returns to its natural state to block the suction channel.

14. The brush assembly of claim 2 or 7, wherein, A water storage area is formed at the bottom of the suction channel; wherein the sealing position is located between the suction port and the water storage area.

15. The brush assembly of claim 2 or 7, wherein, A water storage area is formed at the bottom of the suction channel; wherein, when the sealing member is in the sealing position, the sealing member abuts against the side wall of the water storage area near the suction port to form a sealing fit.

16. A cleaning apparatus, characterized by Includes the floor brush assembly as described in any one of claims 1 to 15.

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