Floor brush and cleaning device

Abstract

A floor brush (100) and a cleaning device (1000). The floor brush (100) comprises a floor brush main body (110), a cleaning member, a scraper assembly (130) and a drive assembly (140), wherein the floor brush main body (110) is capable of moving on a surface to be cleaned in a travelling direction; the cleaning member has a central axis and a central cross section, the central axis being located on the central cross section, and the central cross section being perpendicular to the travelling direction; the scraper assembly (130) is arranged on the front side of the cleaning member in the travelling direction; and the drive assembly (140) comprises a drive mechanism (141) and a transmission mechanism (142), wherein the drive mechanism (141) is at least partially located on the rear side of the central section in the travelling direction, and one end of the transmission mechanism (142) is connected to the drive mechanism (141), and the other end of the transmission mechanism (142) is connected to the scraper assembly (130) and is located above or behind the cleaning member. Under the driving action of the drive mechanism (141), the transmission mechanism (142) at least drives the scraper assembly (130) to move towards the surface to be cleaned, such that the scraper assembly (130) at least scrapes dirt from the surface to be cleaned.

Description

Floor brushes and cleaning equipment Technical Field

[0001] This application relates to the field of cleaning technology, and in particular to a floor brush and cleaning device. Background Technology

[0002] With the increasing demand for household cleaning, floor scrubbers and all-in-one mop and washer machines have gained widespread market attention as efficient and convenient intelligent cleaning equipment. Taking floor scrubbers as an example, they use roller brushes at the bottom of the floor brush to clean surfaces such as floors, carpets, or walls, making them particularly suitable for various scenarios such as homes and commercial spaces.

[0003] Currently, some floor scrubbers have significantly improved cleaning efficiency by adding squeegee assemblies to the front of the roller brush, but this has also caused some problems. When pushing the brush forward, although the squeegee assembly rises, the gap between the squeegee assembly and the ground is still relatively small. This can easily cause jamming when encountering large particles of dirt, forcing the machine to slow down or triggering a protective shutdown. Furthermore, the front of the roller brush on current floor scrubbers is relatively thick, disrupting the streamlined appearance of the brush and affecting the user experience. Also, when pulling the brush back, the squeegee assembly leaves a wider water stain on the floor after scraping away dirt. Summary of the Invention

[0004] In view of the above problems, this application provides a cleaning device that can increase the ground clearance of the scraper assembly when it is in the raised position, improve the cleaning ability of large particles of dirt, and reduce the thickness of the front side of the cleaning component to improve the user experience, thereby making the water marks produced by the scraper assembly narrower when it is in the lowered position.

[0005] A first aspect of the embodiments of this application provides a floor brush, the floor brush comprising:

[0006] The main body of the floor brush can move along the direction of travel on the surface to be cleaned;

[0007] The cleaning component is connected to the main body of the floor brush. The cleaning component is used to clean the surface to be cleaned. The cleaning component has a central axis and a central cross section. The central axis is located on the central cross section, and the central cross section is perpendicular to the direction of travel.

[0008] The scraper assembly is located on the front side of the cleaning component in the direction of travel; and

[0009] The drive assembly includes a drive structure and a transmission structure disposed within the main body of the floor brush. The drive structure is at least partially located on the rear side of the central cross-section in the direction of travel. One end of the transmission structure is connected to the drive structure, and the other end of the transmission structure is confined to the scraper assembly and located above or behind the cleaning element.

[0010] Driven by the drive structure, the other end of the transmission structure drives the scraper assembly toward the surface to be cleaned, so that the scraper assembly scrapes away the dirt on the surface to be cleaned; or, the other end of the transmission structure drives the scraper assembly away from the surface to be cleaned.

[0011] Because the drive structure is at least partially located on the rear side of the central section in the direction of travel, one end of the transmission structure is connected to the drive structure, and the other end is connected to the scraper assembly, located above or behind the cleaning component. Consequently, neither the drive structure nor the transmission structure is simultaneously positioned on the front side with the cleaning component, reducing the overall impact of the drive assembly on the thickness of the front side of the roller brush, which is beneficial for reducing the thickness of the front side of the cleaning component. Furthermore, the rearward positioning of the drive and transmission structures also provides more space for raising the scraper assembly, allowing it to be raised to a higher position and increasing ground clearance. During cleaning, large particles of dirt are less likely to be blocked by the scraper assembly and are more easily sucked in, improving the cleaning ability for large particles.

[0012] Generally, for cleaning equipment without a scraper assembly, a cover plate is placed over the front of the roller brush to prevent dirt from being thrown to the ground by the centrifugal force of the rotating brush. The ground clearance of the scraper assembly in the raised position in this embodiment is similar to the ground clearance between the cover plate and the ground of such a cleaning equipment without a scraper assembly, which significantly reduces the problem of large particles getting stuck.

[0013] Optionally, the other end of the transmission structure drives the scraper assembly to move around the central axis toward the surface to be cleaned; or, the other end of the transmission structure drives the scraper assembly to move around the central axis away from the surface to be cleaned.

[0014] As the transmission structure drives the squeegee assembly to move around the central axis toward the surface to be cleaned, this rotating descent causes the squeegee to rotate relative to the ground. Consequently, the bottom wall of the squeegee does not fully contact the ground, but rather its outer edge does. The outer edge forms a linear water mark with the ground, instead of the existing roughly rectangular water mark (similar to the shape of the bottom wall). The water mark is narrower, resulting in a better user experience.

[0015] Optionally, the cleaning component is a roller brush;

[0016] The angle between the other end of the transmission structure and the line connecting the center of the roller brush shaft and the central section is between -10° and 10°.

[0017] The angle between the other end of the transmission structure and the line connecting the center of the roller brush shaft and the central section is between 10° and 90°.

[0018] Along a path roughly parallel to the direction of travel, the transmission structure is located between the scraper assembly and the drive structure. This layout, which satisfies the above parameters, further ensures the lifting space of the scraper assembly, which helps to increase the ground clearance between the scraper assembly and the ground, and reduces the thickness in front of the cleaning component.

[0019] Optionally, the scraper assembly is provided with a guide ramp. Under the driving action of the drive structure, the end of the transmission structure away from the drive structure abuts against the guide ramp and moves along the guide ramp to push the scraper assembly toward the surface to be cleaned; or,

[0020] The transmission structure is connected to the scraper assembly. Under the driving action of the drive structure, the end of the transmission structure away from the drive structure pushes the scraper assembly toward the surface to be cleaned.

[0021] When the transmission structure and the scraper assembly are limited by abutment, the transmission structure abuts against the lower end of the guide slope when the scraper assembly is in the lowered position; when the scraper assembly is in the raised position, the transmission structure abuts against the upper end of the guide slope. During the switching between the lowered and raised positions of the scraper assembly, the transmission structure slides between the upper and lower ends of the guide slope.

[0022] This transmission method, where the transmission structure abuts against the guide ramp, is simple, convenient, and low-cost. Moreover, the guide ramp can change the direction of the force transmitted by the transmission structure, allowing for more flexible spatial arrangement of the transmission structure and the scraper assembly, and providing more space for lifting the scraper assembly.

[0023] The transmission structure and the scraper assembly are connected by abutment. The two are mainly maintained in relative position by friction, which allows the scraper assembly to be quickly disassembled without tools and with minimal external force.

[0024] When the transmission structure and the scraper assembly are limited by a connection method, the connection between the transmission structure and the scraper assembly is more reliable.

[0025] Optionally, the transmission structure includes a first arm and a second arm. One end of the first arm is rotatably connected to the drive structure, and the other end of the first arm is rotatably connected to one end of the second arm. The other end of the second arm is a free end and abuts against the guide slope.

[0026] The drive assembly drives the scraper assembly to descend in a rotating manner, but it is not desirable for the scraper assembly to have any lateral (referring to the direction parallel to the axis of the roller brush) position change. As a result, the scraper assembly is in the process of switching between the raised and lowered positions. The contact position between the transmission structure and the guide slope is different. The first and second arms, which are connected by hinges, can flexibly adapt to this position change, and the structure is simple, avoiding lateral movement of the scraper assembly.

[0027] Optionally, the floor brush also includes a support post located between the two ends of the second arm, which is rotatably connected to the support post.

[0028] The support column is used to support the second arm, ensuring that the movement of the second arm is smooth and reliable, thereby making the descent of the scraper assembly smoother and more reliable.

[0029] Optionally, the output shaft axis and the support column axis of the drive structure are both parallel to the central section. One end of the first arm rotates relative to the output shaft axis, and the other end of the first arm drives the second arm to rotate around the support column. The first arm and the second arm are approximately parallel to the horizontal plane.

[0030] This layout makes full use of the space above the brush to place the first and second arms, as well as the space inside the brush to place the drive structure, resulting in a more reasonable and compact structure.

[0031] Optionally, the scraper assembly includes a base and a scraper, with the scraper connected to one end of the base and a guide bevel provided at the other end of the base.

[0032] The base serves as both the mounting carrier for the scraper and the connection to the transmission components for power transmission. The guide ramp is part of the base, eliminating the need for additional connecting and transmission structures to achieve force transmission; the structure is simple and compact.

[0033] Optionally, the surface of the base facing the cleaning part has a curved structure.

[0034] The curved base structure allows for a better fit with the housing portion above the roller brush and enables it to rotate and descend circumferentially along the roller brush under the drive of the transmission structure. Furthermore, the curved structure provides a larger contact area with the housing portion above the roller brush, which improves the stability and reliability of the scraper assembly's lifting and lowering process.

[0035] Optionally, the floor brush also includes an elastic element, which connects the floor brush body and the base respectively;

[0036] When the main body of the floor brush moves in the opposite direction to the direction of travel, the drive structure drives the scraper assembly to move toward the surface to be cleaned through the transmission structure. During the movement, the scraper assembly causes the elastic element to deform, so that the elastic element stores energy.

[0037] When the brush body moves along the direction of travel, the elastic element releases energy to drive the scraper assembly away from the surface to be cleaned.

[0038] When the squeegee needs to remove dirt from the floor (such as when pulling the floor brush backward), the drive assembly moves the squeegee assembly towards the ground, simultaneously overcoming the elastic restoring force of the elastic element, causing the elastic element to deform elastically. When the squeegee needs to move away from the ground (such as when pushing the floor brush forward), the drive assembly can remove the drive force from the squeegee assembly, using the elastic restoring force provided by the elastic element to automatically raise the squeegee. Using the elastic element to raise the squeegee assembly allows for a faster response time when the squeegee assembly returns to its original position. Furthermore, since the drive assembly is only used to drive the squeegee assembly downward, it also helps reduce the energy consumption of the equipment.

[0039] Optionally, the other end of the base is provided with a first mounting part and a second mounting part protruding from the first mounting part toward the drive assembly, the guide slope is located in the second mounting part, and the elastic element is connected to the first mounting part.

[0040] Compared to the second mounting part, the first mounting part is a recessed area. Installing the elastic element in the first mounting part can make full use of this recessed area, improve space utilization, and make the structure more compact.

[0041] Optionally, the transmission structure includes a linkage mechanism, one end of which is rotatably connected to the drive structure, and the other end of which is used to drive the scraper assembly toward the surface to be cleaned.

[0042] The linkage mechanism can achieve complex motion transmission in a limited space, has good reliability, and helps to reduce the space occupied above the ground brush, resulting in a compact structure.

[0043] A second aspect of the embodiments of this application provides a cleaning device, the cleaning device comprising:

[0044] The floor brush of the first aspect embodiment;

[0045] The body is rotatably connected to the floor brush.

[0046] The second aspect of the embodiment includes the floor brush of the first aspect embodiment, and therefore the second aspect embodiment also has the same beneficial effects as described above, and will not be described again. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 is a schematic diagram showing the width of watermarks that may remain on the surface to be cleaned when the scraper assembly is in a vertical lifting motion and is in the lowering position.

[0049] Figure 2 is an external schematic diagram of the floor brush when the scraper assembly is in the raised position and the lowered position in some embodiments of this application.

[0050] Figure 3 is a schematic diagram of the structure of the scraper in the scraper assembly in some embodiments of this application.

[0051] Figure 4 is a schematic diagram of the internal structure of the brush with the scraper assembly in the raised position in some embodiments of this application.

[0052] Figure 5 is a side view of the brush with the scraper assembly in the raised position in some embodiments of this application.

[0053] Figure 6 is a state diagram showing the scraper assembly in the raised position and the scraper assembly and drive assembly cooperating in some embodiments of this application.

[0054] Figure 7 is a state diagram of the scraper assembly in the lowered position and the scraper assembly and drive assembly cooperating in some embodiments of this application.

[0055] Figure 8 is a schematic diagram of the structure of a cleaning device according to some embodiments of this application.

[0056] Reference numerals: 1000, Cleaning equipment; 200, Body; 130', Scraper assembly; 132', Hanging strip; 1321', Bottom wall; 100, Floor brush; 110, Floor brush body; 111, Housing part; 120, Roller brush / cleaning component; 130, Scraper assembly; 131, Base; 1311, Guide slope; 1312, First mounting part; 1313, Second mounting part; 1314, Groove; 132, Scraper; 1321, Bottom wall; 1322, Outer edge; 140, Drive assembly; 141, Drive structure; 142, Transmission structure / linkage mechanism; 1421, First arm; 1422, Second arm; 150, Elastic element; 160, Support column. Detailed Implementation

[0057] To make the technical solution and beneficial effects of this application more apparent and understandable, a detailed description is provided below by listing specific embodiments. The accompanying drawings are not necessarily drawn to scale; local features may be enlarged or reduced to more clearly show the details of the local features. Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application pertains.

[0058] 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.

[0059] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating the relative importance of the indicated features or the number of indicated technical features. Therefore, a feature defined as "first" or "second" can explicitly include at least one of those features. In the description of this application, "multiple" means at least two, such as two, three, etc.

[0060] In existing cleaning equipment, the existing drive components occupy a lot of space on the front side of the cleaning component, and even partially overlap with the existing scraper components. This not only increases the thickness of the front side of the cleaning component, but also limits the lifting space of the existing scraper components because the space between the existing drive components and the front side of the cleaning component and the surface to be cleaned is insufficient. The ground clearance between the existing scraper components and the surface to be cleaned cannot meet the requirements.

[0061] Moreover, the existing scraper assembly uses an up-and-down movement to achieve lifting and lowering. As a result, the existing scraper assembly is all forward, and the distance between the existing scraper assembly and the surface to be cleaned is small. In order to drive the existing scraper assembly, the existing drive assembly also needs to extend forward or even downward, which makes it difficult to increase the ground clearance and also increases the thickness of the front side of the cleaning component.

[0062] Furthermore, as shown in Figure 1, the scraper blade assembly 130' has a certain thickness. Because the related technology uses an up-and-down movement (which can be understood as roughly moving vertically up and down perpendicular to the horizontal plane), the entire bottom wall of the scraper blade assembly (see the bottom wall 1321' of the scraper blade 132' in Figure 1) comes into contact with the surface to be cleaned, resulting in wide residual water marks. These water marks are rectangles with the same or similar shape as the bottom wall 1321', and their width is comparable to the bottom wall 1321'. This affects the user experience.

[0063] To address the aforementioned issues, the embodiments of this application provide the following technical solutions.

[0064] The cleaning equipment described in this application includes, but is not limited to, floor scrubbers, washer-mop combos, and electric mops. The aforementioned cleaning components include, but are not limited to, single roller brushes, double roller brushes, and conveyor belts. Surfaces to be cleaned include, but are not limited to, floors, carpets, wooden floors, and walls.

[0065] The cleaning equipment includes a floor brush 100 and a cleaning component mounted on the bottom of the floor brush 100. As the floor brush 100 moves across the surface to be cleaned, the cleaning component brushes the surface to achieve the cleaning purpose. A scraper assembly 130 is located in front of the cleaning component. When the floor brush 100 moves forward, the scraper assembly 130 is in a raised position (see position A in Figure 2), resulting in a larger clearance between the scraper assembly 130 and the surface to be cleaned, facilitating dirt suction. When the floor brush 100 moves backward, the scraper assembly 130 is in a lowered position (see position B in Figure 2), allowing the scraper assembly 130 to contact the surface to be cleaned, scraping away dirt and improving cleaning efficiency and effectiveness.

[0066] For example, the cleaning equipment may also be equipped with sensors and drivers. The sensors can detect the forward or backward movement of the floor brush 100. When the floor brush 100 moves forward, the controller controls the drive assembly 140 to lift the scraper assembly 130, separating it from the ground. When the floor brush 100 moves backward or stops moving due to an obstacle in front, the controller controls the drive assembly 140 to lower the scraper assembly 130, making it make interference contact with the ground, thereby removing residual water stains on the ground when the floor brush 100 is pulled back.

[0067] As shown in Figure 4, the lifting and lowering movement of the scraper assembly 130 is achieved by the drive assembly 140. Adding the scraper assembly 130 not only means adding the scraper assembly 130 itself, but also adding the drive assembly 140.

[0068] The cleaning equipment of the present application embodiment will be described in detail below with reference to Figures 1 to 7.

[0069] Referring to Figures 2 and 4, in some embodiments, the floor brush 100 includes a floor brush body 110, a cleaning component, a scraper assembly 130, and a drive assembly 140 (Figure 4). The floor brush body 110 is movable along the travel direction on the surface to be cleaned. The cleaning component is connected to the floor brush body 110 and is used to clean the surface to be cleaned. The drive assembly 140 is used to drive the scraper assembly 130 to move, thereby raising or lowering the scraper assembly 130 relative to the surface to be cleaned.

[0070] For ease of description, please refer to Figure 2. Taking a forward direction that is roughly parallel to the surface to be cleaned as the travel direction, the surface to be cleaned as the ground, and a roughly cylindrical single roller brush as the cleaning component, the embodiments of this application will be described.

[0071] As shown in Figure 5, the cleaning component has a central axis and a central section O1. The central axis is located on the central section, and the central section is perpendicular to the direction of travel. The scraper assembly 130 is located on the front side of the cleaning component in the direction of travel. Referring to Figure 4, the drive assembly 140 includes a drive structure 141 and a transmission structure 142 disposed within the brush body 110. The drive structure 141 is at least partially located on the rear side of the central section O1 in the direction of travel. One end of the transmission structure 142 is connected to the drive structure 141, and the other end of the transmission structure 142 is located above or behind the scraper assembly 130. Under the driving action of the drive structure 141, the other end of the transmission structure 142 drives the scraper assembly 130 to move towards the surface to be cleaned, so that the scraper assembly 130 can scrape away dirt from the surface to be cleaned.

[0072] The drive structure 141 is used to provide driving force. For example, the drive structure 141 can be a motor or a servo motor.

[0073] In other implementations, the other end of the transmission structure 142 can also drive the scraper assembly 130 to move away from the surface to be cleaned, so that the scraper assembly 130 can move away from the surface to be cleaned, facilitating the suction of dirt. For example, the drive structure 141 is a motor. When the scraper 132 needs to scrape dirt off the floor (e.g., when the floor brush 100 is pulled back), the motor rotates forward, and the transmission structure 142 drives the scraper assembly 130 to move towards the ground, so that the scraper assembly 130 can come into contact with the ground to scrape away dirt. When the scraper 132 needs to move away from the ground (e.g., when the floor brush 100 is pushed forward), the motor reverses, and the transmission structure 142 drives the other end of the transmission structure 142 to move the scraper assembly 130 around the central axis away from the ground, so that the scraper assembly 130 moves away from the ground, increasing the ground clearance and facilitating the suction of dirt.

[0074] For example, the other end of the transmission structure 142 drives the scraper assembly 130 to move around the central axis of the cleaning component toward the surface to be cleaned; or, the other end of the transmission structure 142 drives the scraper assembly 130 to move around the central axis of the cleaning component away from the surface to be cleaned.

[0075] The transmission structure 142 is used to transmit the driving force generated by the drive structure 141 to the scraper assembly 130, driving the scraper assembly 130 to move, thereby switching the scraper assembly 130 between a raised position and a lowered position. In this embodiment, the raised position refers to the highest position where the drive assembly 140 can drive the scraper assembly 130 to rise, at which point the ground clearance between the scraper assembly 130 and the ground is at its maximum. The lowered position refers to the lowest position where the drive assembly 140 can drive the scraper assembly 130 to fall, at which point the scraper assembly 130 is in interference contact with the ground.

[0076] In this embodiment, since the drive structure 141 is at least partially located on the rear side of the central section O1 in the direction of travel, one end of the transmission structure 142 is connected to the drive structure 141, and the other end of the transmission structure 142 is connected to the scraper assembly 130, and is located above or behind the cleaning component, the drive structure 141 and the transmission structure 142 are not simultaneously located on the front side with the cleaning component. This reduces the overall impact of the drive assembly 140 on the thickness of the front side of the roller brush 120, which is beneficial for reducing the thickness of the front side of the cleaning component. Moreover, since the drive structure 141 and the transmission structure 142 are located further back, more space is reserved for the lifting of the scraper assembly 130. The scraper assembly 130 can be raised to a higher position, thereby increasing the ground clearance. As a result, during the cleaning process, large particles of dirt are less likely to be blocked by the scraper assembly 130 and are more easily sucked in, improving the cleaning ability for large particles of dirt during the cleaning process.

[0077] Generally, for cleaning equipment without the scraper assembly 130, a cover plate is placed over the front of the roller brush 120 to prevent dirt from being thrown to the ground by the centrifugal force of the rotating roller brush 120. In this embodiment, the ground clearance of the scraper assembly 130 in the raised position is similar to the ground clearance between the cover plate and the ground of such a cleaning equipment without the scraper assembly, significantly reducing the problem of large particles getting stuck.

[0078] For example, in the embodiment shown in FIG4, the drive structure 141 is entirely located behind the central section O1. Referring to FIG5, the transmission structure 142 is also almost entirely located behind the central section O.

[0079] Referring to Figure 4, the scraper assembly 130 includes a base 131 and a scraper 132. The base 131 is connected to the transmission structure 142 and the scraper 132 respectively. When the scraper assembly 130 is in the lowered position, it relies on the scraper 132 to make interference contact with the ground.

[0080] As the transmission structure 142 drives the scraper assembly 130 to move around the central axis toward the surface to be cleaned, as shown in Figure 3, when the scraper 132 is rotated relative to the ground, the bottom wall 1321 of the scraper 132 will not be in full contact with the ground, but its outer edge 1322 will be in contact with the ground. The outer edge 1322 forms a linear water mark with the ground, instead of the roughly rectangular water mark in Figure 1. The water mark is narrower, resulting in a better user experience.

[0081] According to some alternative embodiments, referring to Figure 5, the cleaning component is a roller brush 120. The other end of the transmission structure 142 (in Figure 5, the other end of the transmission structure 142 is the other end of the second arm 1422, which will be mentioned below) is located above the cleaning component, specifically: the angle α1 between the other end of the transmission structure 142 and the line connecting the axis of the roller brush 120 with respect to the central section O1 is between -10° and 10°. The other end of the transmission structure 142 is located behind the cleaning component, specifically: the angle α2 between the other end of the transmission structure 142 and the line connecting the axis of the roller brush 120 with respect to the central section is between 10° and 90°.

[0082] In some examples, the angle α1 between the other end of the transmission structure 142 and the line connecting the axis of the roller brush 120 and the center section is between -5° and 5°.

[0083] Referring to Figure 4, along a path roughly parallel to the direction of travel, the transmission structure 142 is located between the scraper assembly 130 and the drive structure 141. The layout that satisfies the above parameters can further ensure the lifting space of the scraper assembly 130, which is conducive to increasing the ground clearance between the scraper assembly 130 and the ground and reducing the thickness in front of the cleaning component.

[0084] In some implementations, referring to Figure 5, the other end of the transmission structure 142 is the foremost part of the transmission structure 142. In the implementation shown in Figure 5, the angle α11 between the other end of the transmission structure 142 and the line connecting the axis of the roller brush 120 and the center section O1 is approximately -3°.

[0085] Referring to Figure 5, when the scraper assembly 130 is in the raised position, the scraper 132 is located approximately on the horizontal plane O2 passing through the center of the roller brush 120, or the scraper 132 is located within 5 mm below the horizontal plane O2.

[0086] According to some alternative embodiments, as shown in Figures 4 and 6, the transmission structure 142 includes a linkage mechanism 142.

[0087] Optionally, one end of the linkage mechanism 142 is rotatably connected to the drive structure 141, and the other end of the linkage mechanism 142 is used to drive the scraper assembly 130 to move toward the surface to be cleaned.

[0088] The linkage mechanism 142 can realize complex motion transmission in a limited space, has good reliability, and helps to reduce the space occupied above the ground brush 100, with a compact structure.

[0089] The linkage mechanism 142 can be a hinged combination of multiple rigid links, as shown in Figures 4 and 6. The linkage mechanism 142 includes two links, which are connected end-to-end. Alternatively, the linkage mechanism 142 can also be a three-bar or four-bar linkage, and the number of links is not limited.

[0090] The linkage mechanism 142 may include a link, the two ends of which can be connected to the scraper assembly 130 and the drive structure 141, respectively.

[0091] In some implementations, the transmission structure 142 can also be a cam structure, but it is not limited to this.

[0092] According to some alternative embodiments, as shown in Figures 4, 6, and 7, the scraper assembly 130 is provided with a guide ramp 1311, and the transmission structure 142 abuts against the guide ramp 1311. Under the driving action of the drive structure 141, the transmission structure 142 moves along the guide ramp 1311 to push the scraper assembly 130 toward the surface to be cleaned.

[0093] The transmission structure 142 can maintain contact with the guide slope 1311 at all times. When the transmission structure 142 moves along the guide slope 1311 in a preset direction, it drives the scraper assembly 130 to descend. As shown in Figure 7, when the scraper assembly 130 is in the descending position, the transmission structure 142 contacts the rear end of the guide slope 1311. As shown in Figures 4 and 6, when the scraper assembly 130 is in the lifting position, the transmission structure 142 contacts the front end of the guide slope 1311. During the switching between the descending and lifting positions of the scraper assembly 130, the transmission structure 142 slides between the upper and lower ends of the guide slope 1311.

[0094] The transmission method in which the transmission structure 142 abuts against the guide ramp 1311 is simple, convenient, and low in cost. Moreover, the guide ramp 1311 can be used to change the direction of the force transmitted by the transmission structure 142, making the spatial layout of the transmission structure 142 and the scraper assembly 130 more flexible and providing more space for lifting the scraper assembly 130.

[0095] In the embodiment illustrated in this application, the guide slope 1311 is set at an angle to the axis of the roller brush 120 and is inclined from front to back. When the transmission structure 142 slides from back to front along the guide slope 1311, the transmission structure 142 pushes the scraper assembly 130 to rise.

[0096] In some implementations, the guide slope 1311 can be located within the groove 1314, and the other end of the transmission structure 142 can be partially inserted into the groove 1314 to abut against the guide slope 1311. Alternatively, the guide slope 1311 can be a protruding surface on the scraper assembly 130, and the other end of the transmission structure 142 is provided with a groove 1314, which can be partially inserted into the groove 1314 to achieve abutment between the transmission structure 142 and the guide slope 1311.

[0097] During the cleaning process, the scraper assembly 130 comes into direct contact with dirt. After cleaning, it may need to be disassembled for further cleaning. Furthermore, the scraper blades 132 of the scraper assembly 130 are prone to loosening or damage after prolonged friction with the ground, requiring disassembly and replacement. The transmission structure 142 is connected to the scraper assembly 130 via an abutment mechanism, allowing for easier and faster disassembly of the scraper assembly 130. Specifically, the transmission structure 142 abuts against the guide ramp 1311, and the two maintain their relative position primarily through friction. This allows for quick disassembly of the scraper assembly 130 without the need for tools and with minimal external force.

[0098] In other implementations, the end of the transmission structure 142 away from the drive structure 141 may not be confined to the scraper assembly 130 in an abutting manner. For example, the transmission structure 142 is connected to the scraper assembly 130, and under the driving action of the drive structure 141, the end of the transmission structure 142 away from the drive structure pushes the scraper assembly 130 toward the surface to be cleaned. The connection between the transmission structure 142 and the scraper assembly 130 can be a detachable connection, such as a snap-fit ​​connection, screw connection, or threaded connection, or it can be a fixed connection, such as an adhesive or welded connection.

[0099] According to some optional embodiments, as shown in FIG6, the transmission structure 142 includes a first arm 1421 and a second arm 1422. One end of the first arm 1421 is rotatably connected to the drive structure 141, and the other end of the first arm 1421 is rotatably connected to one end of the second arm 1422. The other end of the second arm 1422 is a free end and abuts against the guide inclined surface 1311.

[0100] The drive assembly 140 drives the scraper assembly 130 to descend in a rotating manner, but it is not desirable for the scraper assembly 130 to have any lateral (referring to the direction parallel to the axis of the roller brush 120) positional change. As a result, the scraper assembly 130 is in the process of switching between the raised position and the lowered position, the contact position between the transmission structure 142 and the guide inclined surface 1311 is different. The first arm 1421 and the second arm 1422, which are hinged, can flexibly adapt to this positional change, and the structure is simple, avoiding lateral movement of the scraper assembly 130.

[0101] According to some optional embodiments, referring to Figure 4, the floor brush 100 further includes a support column 160 located between the two ends of the second arm 1422, and the second arm 1422 is rotatably connected to the support column 160. The support column 160 is used to support the second arm 1422, ensuring that the movement of the second arm 1422 is smooth and reliable, thereby making the descent of the scraper assembly 130 smoother and more reliable.

[0102] In a non-limiting embodiment shown in FIG4, the support column 160 is located approximately in the middle of the second arm 1422.

[0103] According to some optional embodiments, as shown in Figure 4, the output shaft axis of the drive structure 141 and the axis of the support column 160 are both parallel to the central section O1. One end of the first arm 1421 rotates relative to the output shaft axis, and the other end of the first arm 1421 drives the second arm 1422 to rotate around the support column 160. The first arm 1421 and the second arm 1422 are approximately parallel to the horizontal plane. The horizontal plane is approximately perpendicular to the central section O1. This layout makes full use of the space above the floor brush 100 to place the first arm 1421 and the second arm 1422, and also makes full use of the internal space of the floor brush 100 to place the drive structure 141, resulting in a more reasonable and compact structure.

[0104] In the implementation shown in Figure 4, both the first arm 1421 and the second arm 1422 are located above the drive structure 141.

[0105] According to some optional embodiments, as shown in Figures 4 and 6, the scraper assembly 130 includes a base 131 and a scraper 132. One end of the base 131 is connected to the scraper 132, and the other end of the base 131 is provided with a guide slope 1311. The base 131 serves both as a mounting carrier for the scraper 132 and as a connection to the transmission assembly to achieve power transmission. The guide slope 1311 is part of the base 131, eliminating the need for additional connecting structures and transmission structures 142 to achieve force transmission, resulting in a simple and compact structure.

[0106] According to some alternative embodiments, as shown in Figures 6 and 7, the surface of the base 131 facing the cleaning component has a curved structure.

[0107] The curved base 131 can better match the housing portion 111 above the roller brush 120 (see Figure 4) and can rotate downwards along the circumference of the roller brush 120 under the drive of the transmission structure 142. In addition, the curved structure has a larger contact area with the housing portion 111 above the roller brush 120, which is beneficial to improving the stability and reliability of the lifting process of the scraper assembly 130.

[0108] During the switching between the raised and lowered positions, the base 131 rotates along the outer periphery of the roller brush 120. The base 131 is located at the front of the cleaning component, and the scraper 132 is located below the base 131. The base 131 may be made of a hard material, and the scraper 132 may be at least partially made of a soft material to avoid the scraper 132 scratching the ground.

[0109] According to some optional embodiments, as shown in Figures 4 and 6, the floor brush 100 further includes an elastic element 150, which is connected to the floor brush body 110 and the base 131 respectively. When the floor brush body 110 moves in the opposite direction to the travel direction, the drive structure 141 drives the scraper assembly 130 to move towards the surface to be cleaned through the transmission structure 142. During the movement, the scraper assembly 130 causes the elastic element 150 to deform, so that the elastic element 150 stores energy. When the floor brush body 110 moves in the travel direction, the elastic element 150 releases energy to drive the scraper assembly 130 away from the surface to be cleaned.

[0110] When the scraper 132 needs to remove dirt from the ground (e.g., when the floor brush 100 is pulled back), the drive assembly 140 drives the scraper assembly 130 to move towards the ground, while simultaneously overcoming the elastic restoring force of the elastic element 150, causing the elastic element 150 to undergo elastic deformation. When the scraper 132 needs to move away from the ground (e.g., when the floor brush 100 is pushed forward), the drive assembly 140 can not apply a driving force to the scraper assembly 130, but can use the elastic restoring force provided by the elastic element 150 to drive the scraper 132 to automatically rise. Using the elastic element 150 to raise the scraper assembly 130 allows for a faster response speed when the scraper assembly 130 returns to its original position. Furthermore, since the drive assembly 140 is only used to drive the scraper assembly 130 to descend, it also helps to reduce the energy consumption of the equipment.

[0111] In a non-limiting sense, the elastic element 150 includes elastic elements such as springs, elastic rubber, or elastic cords.

[0112] Understandably, based on the foregoing description, it is more flexible to rely on the drive component 140 to drive the scraper assembly 130 to reset rather than the elastic element 150 driving the scraper assembly 130 away from the ground.

[0113] Based on the foregoing description, when the reset of the scraper assembly 130 is achieved by the drive assembly 140, the elastic element 150 may not be required. Alternatively, the elastic element 150 can be provided while the drive assembly 140 moves the scraper assembly 130 away from the ground. In this case, the elastic element 150 can assist in the reset of the scraper assembly 130, or serve as a backup method to drive the scraper assembly 130 away from the ground in case of damage to the drive assembly 140 or unexpected shutdown. In the implementation shown in Figures 4 and 6, the elastic element 150 is a tension spring. The tension spring is not fully assembled in the figures; only its approximate position is shown. The two ends of the tension spring are respectively hooked into the holes in the base 131 and the housing portion 111 for easy disassembly, installation, or replacement.

[0114] In this embodiment, the scraper 132 is driven to move away from the surface to be cleaned by the elastic reset member (i.e., elastic member 150), so that the scraper 132 has a faster response speed, which is beneficial to improving the response speed of the scraper 132.

[0115] Figure 6 exemplarily shows that elastic elements 150 are provided on both opposite sides of the base 131, which can drive the scraper assembly 130 to move more smoothly.

[0116] In some alternative implementations, the number of elastic elements 150 can also be one, three or more.

[0117] According to some optional embodiments, as shown in FIG6, the other end of the base 131 is provided with a first mounting portion 1312 and a second mounting portion 1313 protruding from the first mounting portion 1312 toward the drive assembly 140. The guide slope 1311 is located in the second mounting portion 1313, and the elastic member 150 is connected to the first mounting portion 1312. Compared with the second mounting portion 1313, the first mounting portion 1312 is a recessed area. Installing the elastic member 150 in the first mounting portion 1312 can make full use of the recessed area, improve space utilization, and make the structure more compact.

[0118] Referring to Figure 8, an embodiment of this application also provides a cleaning device 1000, which includes the aforementioned floor brush 100 and a body 200, wherein the body 200 is rotatably connected to the floor brush 100.

[0119] The cleaning equipment 1000 has the same technical effects as the aforementioned embodiments, and will not be described again.

[0120] The rotatable connection between the body 200 and the floor brush 100 allows for easy adjustment of the body's tilt to suit different user needs. The cleaning device 1000 can also be adjusted to a flat position for cleaning low spaces such as under beds and tables.

[0121] The cleaning device 1000 may also include a clean water tank and a wastewater tank. The clean water tank provides cleaning fluid to the roller brush 120, wetting it for wet cleaning. When the cleaning device 1000 is placed on the base for self-cleaning, the cleaning fluid provided by the clean water tank can also be used for self-cleaning. The wastewater tank is used to store wastewater or solid dirt generated after cleaning.

[0122] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0123] In the description of this specification, references to "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0124] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A floor brush, characterized in that, The floor brush includes: The main body of the floor brush can move along the direction of travel on the surface to be cleaned; A cleaning component is connected to the main body of the floor brush. The cleaning component is used to clean the surface to be cleaned. The cleaning component has a central axis and a central cross-section. The central axis is located on the central cross-section, and the central cross-section is perpendicular to the direction of travel. A scraper assembly is disposed on the front side of the cleaning member in the direction of travel; and The drive assembly includes a drive structure and a transmission structure disposed within the main body of the floor brush. The drive structure is at least partially located on the rear side of the central section in the direction of travel. One end of the transmission structure is connected to the drive structure, and the other end of the transmission structure is confined to the scraper assembly and located above or behind the cleaning element. Under the driving action of the drive structure, the other end of the transmission structure drives the scraper assembly to move toward the surface to be cleaned, so that the scraper assembly scrapes away the dirt on the surface to be cleaned; or, the other end of the transmission structure drives the scraper assembly to move away from the surface to be cleaned.

2. The floor brush according to claim 1, characterized in that, The cleaning component is a roller brush; The angle between the line connecting the other end of the transmission structure and the center of the roller brush shaft and the central section is between -10° and 10°. The angle between the line connecting the other end of the transmission structure and the center of the roller brush shaft and the central section is between 10° and 90°.

3. The floor brush according to claim 1 or 2, characterized in that, The scraper assembly is provided with a guide slope. Under the driving action of the drive structure, the end of the transmission structure away from the drive structure abuts against the guide slope and moves along the guide slope to push the scraper assembly toward the surface to be cleaned.

4. The floor brush according to claim 3, characterized in that, The transmission structure includes a first arm and a second arm. One end of the first arm is rotatably connected to the drive structure, and the other end of the first arm is rotatably connected to one end of the second arm. The other end of the second arm is a free end and abuts against the guide slope.

5. The floor brush according to claim 4, characterized in that, The floor brush also includes a support column located between the two ends of the second arm, and the second arm is rotatably connected to the support column.

6. The floor brush according to claim 5, characterized in that, The output shaft axis of the drive structure and the axis of the support column are both parallel to the central section. One end of the first arm is configured to rotate relative to the axis of the output shaft, and the other end of the first arm is configured to drive the second arm to rotate around the support column. The first arm and the second arm are parallel to the horizontal plane.

7. The floor brush according to any one of claims 3 to 6, characterized in that, The scraper assembly includes a base and a scraper, with the scraper connected to one end of the base and the guide slope provided at the other end of the base.

8. The floor brush according to claim 7, characterized in that, The surface of the base facing the cleaning component has a curved structure.

9. The floor brush according to claim 7 or 8, characterized in that, The floor brush also includes an elastic element, which is connected to the floor brush body and the base respectively; When the main body of the floor brush moves in the opposite direction to the direction of travel, the drive structure drives the scraper assembly to move toward the surface to be cleaned through the transmission structure. During the movement, the scraper assembly causes the elastic element to deform so that the elastic element stores energy. When the brush body moves along the direction of travel, the elastic element releases energy to drive the scraper assembly away from the surface to be cleaned.

10. The floor brush according to claim 9, characterized in that, The other end of the base is provided with a first mounting part, and the elastic element is connected to the first mounting part.

11. The floor brush according to claim 10, characterized in that, The other end of the base is provided with a second mounting portion that protrudes from the first mounting portion toward the drive assembly, and the guide slope is located in the second mounting portion.

12. The floor brush according to claim 1 or 2, characterized in that, The transmission structure is connected to the scraper assembly. Under the driving action of the drive structure, the end of the transmission structure away from the drive structure pushes the scraper assembly toward the surface to be cleaned.

13. The floor brush according to any one of claims 1 to 12, characterized in that, The other end of the transmission structure is configured to drive the scraper assembly to move around the central axis toward the surface to be cleaned; or, the other end of the transmission structure is configured to drive the scraper assembly to move around the central axis away from the surface to be cleaned.

14. The floor brush according to any one of claims 1 to 13, characterized in that, The transmission structure includes a linkage mechanism, one end of which is rotatably connected to the drive structure, and the other end of which is used to drive the scraper assembly to move toward the surface to be cleaned.

15. A cleaning device, characterized in that, The cleaning equipment includes: The floor brush according to any one of claims 1 to 14; and The body is rotatably connected to the floor brush.

16. A floor brush, characterized in that, The floor brush includes: The main body of the floor brush can move along the direction of travel on the surface to be cleaned; A cleaning component is connected to the main body of the floor brush. The cleaning component is used to clean the surface to be cleaned. The cleaning component has a central axis and a central cross-section. The central axis is located on the central cross-section, and the central cross-section is perpendicular to the direction of travel. A scraper assembly is disposed on the front side of the cleaning member in the direction of travel; and The drive assembly includes a drive structure and a transmission structure disposed within the brush body, wherein the drive structure is at least partially located on the rear side of the central section in the direction of travel; one end of the transmission structure is connected to the drive structure, and the other end of the transmission structure is confined within the scraper assembly. Under the driving action of the drive structure, the other end of the transmission structure drives the scraper assembly to move toward or away from the surface to be cleaned.

17. The floor brush according to claim 16, characterized in that, The end of the transmission structure away from the drive structure abuts against the scraper assembly. Under the driving action of the drive structure, the end of the transmission structure away from the drive structure moves in a preset direction, thereby pushing the scraper assembly toward the surface to be cleaned. The preset direction is different from the moving direction of the scraper assembly.

18. The floor brush according to claim 17, characterized in that, The transmission structure includes a first arm and a second arm. One end of the first arm is rotatably connected to the drive structure, and the other end of the first arm is rotatably connected to one end of the second arm. The other end of the second arm is a free end and abuts against the scraper assembly.

19. The floor brush according to claim 18, characterized in that, The floor brush also includes a support column located between the two ends of the second arm, and the second arm is rotatably connected to the support column.

20. The floor brush according to claim 19, characterized in that, The output shaft axis of the drive structure and the axis of the support column are both parallel to the central section. One end of the first arm is configured to rotate relative to the axis of the output shaft, and the other end of the first arm is configured to drive the second arm to rotate around the support column. The first arm and the second arm are parallel to the horizontal plane.

21. The floor brush according to any one of claims 16 to 20, characterized in that, The scraper assembly includes a base and a scraper, one end of the base is connected to the scraper, and the other end of the base abuts against the transmission structure.

22. The floor brush according to any one of claims 16 to 21, characterized in that, The scraper assembly is provided with a groove, and the end of the transmission structure away from the drive structure is inserted into the groove to abut against the scraper assembly, so that the transmission structure moves along the groove and controls the scraper assembly to move toward or away from the surface to be cleaned.

23. The floor brush according to claim 22, characterized in that, The groove is provided with a guide slope, and the end of the transmission structure away from the drive structure can move along the guide slope, thereby controlling the scraper assembly to move toward or away from the surface to be cleaned.

24. The floor brush according to any one of claims 16 to 23, characterized in that, The transmission structure includes a linkage mechanism, one end of which is rotatably connected to the drive structure, and the other end of which is connected to the scraper assembly, for moving the scraper assembly toward the surface to be cleaned under the drive of the drive structure.

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