Cleaning brushes and smart cleaning devices

Abstract

The present application proposes a cleaning brush and a smart cleaning device, the cleaning brush includes an axial rod (100), a tubular member (200) and at least one end member (300), the axial rod (100) has two first ends (110) opposite to each other along an axial direction, at least one first position limiting structure is installed on the side wall of the first end (110), the tubular member (200) is sleeved coaxially around the axial rod, the tubular member (200) has two second ends (210) opposite to each other along an axial direction, a brush member is installed on the outer surface of the tubular member (200), and the at least one end member (300) has at least one first end (110). (110), the end member (300) having a stop structure (310) for preventing the winding from excessively stretching away from the cleaning brush, the end member (300) and the first end (110) each having a mating mounting structure (400), the mounting structure (400) including a guide bush (420) disposed at an end of the end member (300) facing the axial rod (100), the guide bush (420) adapted to be sleeved around the first end (110), and wherein the second end (210) of the tubular member (200) covers at least a portion of the guide bush (420).

Description

[Technical field]

[0001] (Related Applications) This application is proposed based on a Chinese patent application filed on January 10, 2022, application number 202220052838.5, and claims priority to this Chinese patent application, the entire contents of which are incorporated by reference into this application.

[0002] The present application relates to the technical field of cleaning appliances, and in particular to cleaning brushes and smart cleaning appliances. [Background technology]

[0003] The cleaning brush is an important functional part of the cleaning device, and the end cap of the cleaning brush is used to receive wound material such as hair or thread that gets wound around the cleaning device during operation, and to prevent the wound material from stretching too much at the end of the cleaning brush and getting stuck on the output power end and bearing end of the motor.

[0004] The size of the end cap of the conventional cleaning brush is relatively small, the end of the shaft of the cleaning brush is exposed outside the end cap, and the end cap is located outside the cylindrical member that sleeves on the outer periphery of the cleaning brush shaft telescopic cover, so that the wound material wound on the cylindrical member is easily wound from the end of the cylindrical member to the end of the shaft, but the winding position is relatively deep, and it is necessary to remove the end cap to take out the wound material from inside the cylindrical member, which is troublesome. In addition, the size of the end cap of the conventional cleaning brush is relatively small, and if the end cap is not attached while the cleaning brush is being attached, it is difficult to find, so it is necessary to install a corresponding mechanism to prevent the end cap from being attached. Summary of the Invention [Problem to be solved by the invention]

[0005] One of the main objectives of the present application is to overcome at least one of the deficiencies of the above-mentioned prior art, and provide a cleaning brush which can effectively prevent the wound material from being wound around the shaft, and is relatively convenient for cleaning the wound material.

[0006] Another main objective of the present application is to overcome at least one deficiency in the above prior art and to provide a smart cleaning appliance employing the above cleaning brush. [Means for solving the problem]

[0007] To achieve the above objectives, the present application adopts the following technical solutions:

[0008] According to one aspect of the present application, there is provided a cleaning brush, the cleaning brush comprising an axial rod, a tubular member, and at least one end member, the axial rod having two axially opposite first ends, at least one first position limiting structure disposed on a sidewall of the first ends, the tubular member being coaxially sleeved around the axial rod, the tubular member having two axially opposite second ends, a brush member disposed on an outer surface of the tubular member, the at least one end member being attached to the at least one first end member, and the end member being configured to be movable relative to the at least one first end member. The member has a stop structure to prevent the winding from excessively stretching away from the cleaning brush, and the end member and the first end each have a mating mounting structure which includes a guide bush which is mounted on the end of the end member facing the axial rod and which is adapted to be sleeved around the first end, and wherein the second end of the tubular member which corresponds to the end member covers at least a portion of the guide bush which is mounted on the end of the end member facing the axial rod.

[0009] According to one embodiment of the present application, the second end of the tubular member corresponding to the end member covers the first end to which the end member is attached.

[0010] According to one embodiment of the present application, the stopper structure of the end member is located outside the second end of the tubular member corresponding to the end member.

[0011] According to one embodiment of the present application, the mounting structure further includes a guide hole and a guide shaft, the guide hole being coaxially opened on an end face of the first end portion, the guide shaft being connected to the end member, and the guide shaft being used for being inserted into the guide hole.

[0012] According to one embodiment of the present application, the distance along the axial direction of the shaft between the stopper structure corresponding to the same first end and the end of the guide bush away from the main body is greater than 5% of the length of the shaft.

[0013] According to one embodiment of the present application, at least one first position limiting structure is provided on a side wall of the first end portion, and at least one second position limiting structure that fits into the at least one first position limiting structure is provided on an inner wall of the guide bush, where one of the first position limiting structure and the second position limiting structure is a position limiting rib and the other is a position limiting groove, and shapes of the position limiting rib and the position limiting groove match each other.

[0014] According to one embodiment of the present application, at least one third position limiting structure is provided on a side wall of the first end, and at least one fourth position limiting structure that fits into the at least one third position limiting structure is provided on an inner wall of the guide bush, wherein one of the third position limiting structure and the fourth position limiting structure is a bump buckle, and the other is a locking groove that engages with the bump buckle.

[0015] According to one embodiment of the present application, the position limiting ribs and the position limiting grooves may be linear or spiral in shape and coincident with each other.

[0016] According to one embodiment of the present application, the second position limiting structure is a position limiting rib, which is an inner wall installed on the guide bush by welding or integral molding process, or formed from a part of the structure of the guide bush by a press process; or the second position limiting structure is a position limiting groove, which is a recessed groove opened on the inner wall of the guide bush, or a through groove penetrating the guide bush.

[0017] According to one embodiment of the present application, a plurality of first position limiting structures are provided at the first end, and the plurality of first position limiting structures are evenly spaced apart along the circumferential direction of the shaft rod.

[0018] According to one embodiment of the present application, the guide bush is provided with a plurality of second position limiting structures, the plurality of second position limiting structures being evenly spaced apart along the circumferential direction of the guide bush.

[0019] According to one embodiment of the present application, the end member is integrally molded with the guide bush.

[0020] According to one embodiment of the present application, the first end portion is provided with a plurality of first position limiting structures and a plurality of third position limiting structures, which are equal in number, and the plurality of first position limiting structures and the plurality of third position limiting structures are alternately and spaced apart from each other in the circumferential direction of the shaft rod.

[0021] According to one embodiment of the present application, the plurality of first position-defining structures and the plurality of third position-defining structures are evenly spaced apart in the circumferential direction of the shaft rod.

[0022] According to one embodiment of the present application, the guide bush is provided with a plurality of second position limiting structures and a plurality of fourth position limiting structures, which are equal in number, and the plurality of second position limiting structures and the plurality of fourth position limiting structures are alternately and spaced apart in a circumferential direction of the guide bush.

[0023] According to one embodiment of the present application, the plurality of second position limiting structures and the plurality of fourth position limiting structures are evenly spaced apart in the circumferential direction of the guide bush.

[0024] According to one embodiment of the present application, the fourth position limiting structure is a bump buckle, which is installed on the inner wall of the guide bush by welding or integral molding process, or formed from a part of the structure of the guide bush by pressing process; or the fourth position limiting structure is a locking groove, which is a recessed groove opened on the inner wall of the guide bush, or a through groove penetrating the guide bush.

[0025] According to one embodiment of the present application, at least one second mounting mark is provided on an outer wall of the guide bush, and a position of the at least one second mounting mark corresponds to a position of the at least one second position limiting structure and is used to indicate the position of the at least one second position limiting structure.

[0026] According to one embodiment of the present application, the stopper structure is a barrier ring that surrounds the outer periphery of the end member to present a closed loop structure.

[0027] According to one embodiment of the present application, the end members are both attached to the two first ends of the shaft rod, one of the two end members is provided with a transmission structure, and the other is used to mount a bearing structure.

[0028] According to one embodiment of the present application, the transmission structure includes a columnar structure having a regular polygonal cross section, the axis of the columnar structure overlaps with the axis of both the end member and the shaft rod, and the transmission structure is used to fit into an output end of a drive mechanism.

[0029] According to one embodiment of the present application, one end of the guide shaft of one end member, facing away from the shaft rod, protrudes from the end member as a mating segment that fits into the bearing structure, and the bearing structure is removably installed on the mating segment of the guide shaft.

[0030] According to one embodiment of the present application, the fitting segment is provided with a positioning groove along the circumferential direction, and the positioning groove is positioned and fitted with the bearing structure to prevent the bearing structure from shaking.

[0031] According to one embodiment of the present application, the tubular member is a flexible or rigid member.

[0032] According to another aspect of the present application, there is provided a smart cleaning device, wherein said smart cleaning device comprises a cleaning brush as proposed in the present application and described in the above embodiments. Effect of the Invention

[0033] The cleaning brush proposed in this application includes an axial rod, a tubular member, and an end member. The end member is attached to a first end of the axial rod, and the end member has a stopper structure to prevent the wound material from being excessively stretched away from the cleaning brush, and the end member is provided with a guide bush for sleeved around the first end, and the second end of the tubular member corresponding to the end member covers at least a part of the guide bush provided at the end of the end member facing the axial rod. With the above design, the application takes advantage of at least a part of the guide bush being interposed between the axial rod and the corresponding end of the tubular member, avoiding the wound material wound on the tubular member being directly wound on the axial rod, and winding the wound material on the guide bush, and furthermore, the wound material can be removed together with the removal of the end member, making cleaning more convenient.

[0034] Various objects, features and advantages of the present application will become more apparent upon consideration of the following detailed description of preferred embodiments of the present application in conjunction with the accompanying drawings, in which: The accompanying drawings are only exemplary illustrations of the present application and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals always refer to the same or similar elements. [Brief description of the drawings]

[0035] [Figure 1] FIG. 1 is a schematic diagram of a three-dimensional structure of a cleaning brush according to an exemplary embodiment; [Diagram 2] An exploded schematic diagram of the cleaning brush shown in Figure 1. [Diagram 3] Front view of Figure 1 [Figure 4] Cross-sectional view of the shaft side of Figure 3 [Diagram 5] Front view of Figure 2 [Figure 6] Cross-sectional view of the shaft side of Figure 5 [Figure 7] A schematic diagram of the three-dimensional structure of the shaft and end members of the cleaning brush shown in Figure 1. [Figure 8] An enlarged schematic diagram of the exploded state of some of the structures shown in Figure 7. [Figure 9] FIG. 1 is an exploded, enlarged schematic diagram of a portion of a structure of a cleaning brush according to an exemplary embodiment; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0036] Exemplary embodiments embodying the features and advantages of the present application are described in detail in the following description. It should be understood that the present application may have various modifications in different embodiments, none of which departs from the scope of the present application, and the description therein and the accompanying drawings are used for illustrative purposes only in nature, and are not intended to limit the present application.

[0037] In the following description of different exemplary embodiments of the present application, reference is made to the accompanying drawings, which form a part of the present application and which illustrate different exemplary structures, systems and steps that may implement aspects of the present application by way of example. It should also be understood that other specific arrangements of parts, structures, exemplary devices, systems and steps may be used, and modifications of structure and functionality may be made without departing from the scope of the present application. And, although terms such as "on", "between", and "within" may be used herein to describe different exemplary features and elements of the present application, these terms are used herein for convenience only, such as the orientation of the examples shown in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of a structure to fall within the scope of the present application.

[0038] Referring to Fig. 1, it representatively shows a schematic diagram of the three-dimensional structure of the cleaning brush proposed in the present application. In this exemplary embodiment, the cleaning brush proposed in the present application is described by taking the application of a smart cleaning robot as an example. As can be easily understood by those skilled in the art, in order to apply the related design of the present application to other types of cleaning equipment, a number of modifications, additions, substitutions, deletions or other changes may be made to the following specific embodiments, and these changes are within the scope of the principle of the cleaning brush proposed in the present application.

[0039] As shown in FIG. 1, in this embodiment, the cleaning brush proposed in this application mainly includes an axial rod (axial rod 100 shown in FIG. 2), a tubular member 200, and two end members 300. With reference to FIG. 2 to FIG. 8 in combination, FIG. 2 shows a three-dimensional exploded schematic view of the cleaning brush, FIG. 3 shows a front view of FIG. 1, FIG. 4 shows a shaft side cross-sectional view of FIG. 3, FIG. 5 shows a front view of FIG. 2, FIG. 6 shows a shaft side cross-sectional view of FIG. 5, FIG. 7 shows a three-dimensional structure schematic view of the axial rod 100 and the end member 300, and FIG. 8 shows an enlarged schematic view of the exploded state of some of the structures shown in FIG. 7, specifically, the exploded state of one end member 300 and one first end 110 of the pole. Hereinafter, the structure, connection method and functional relationship of each main component of the cleaning brush proposed in this application will be described in detail in conjunction with the above-mentioned attached drawings.

[0040] As shown in Fig. 1 to Fig. 4, in one embodiment of the present application, the axial rod 100 has two first ends 110 opposite along the axial direction, i.e., both ends of the axial rod 100 are the respective first ends 110. The tubular member 200 is sleeved coaxially around the axial rod 100, and the tubular member 200 has two second ends 210 opposite along the axial direction, i.e., both ends of the tubular member 200 are the respective second ends 210. A brush member is installed on the outer surface of the tubular member 200. Two end members 300 are respectively attached to the two first ends 110 of the axial rod 100. Each end member 300 has a stopper structure 310 that can prevent windings such as hair or thread from excessively stretching away from the cleaning brush. And, each of the end member 300 and the first end 110 corresponding to the end member 300 has a fitting structure 400, which includes a guide bush 420, which is installed at the end of the end member 300 facing the axial rod 100, and the guide bush 420 can be sleeved around the first end 110 of the axial rod 100 corresponding to the end member 300. In addition, the second end 210 of the tubular member 200 corresponding to the end member 300 covers at least a part of the guide bush, which may be specifically referred to as the coverage area A shown in FIG. With the above design, the present application utilizes that at least a part of the guide bush 420 is interposed between the shaft rod 100 and the corresponding end of the tubular member 200, so that the material wound on the tubular member 200 is avoided from being directly wound on the shaft rod 100, and the material is mainly wound on the guide bush 420, and furthermore, the material is removed together with the removal of the end member 300, so that cleaning is more convenient. In addition, if the end member 300 is not installed during installation of the cleaning brush, the cleaning brush will have obvious missing parts, which will be easily found.

[0041] It should be noted that in the embodiments described herein, the end member 300 is installed on each of the two first ends 110 of the shaft rod 100. It should be understood that in some embodiments, the present application allows the end member 300 to be attached to only one first end 110 of the shaft rod 100. In other words, in various possible embodiments that meet the design concept of the present application, the cleaning brush proposed in the present application includes at least one end member 300, and the at least one end member 300 is attached to at least one first end 110 of the shaft rod 100.

[0042] As shown in Figures 2, 4 and 6, in one embodiment of the present application, the second end 210 of the tubular member 200 corresponding to the end member 300 can cover the first end 110 to which the end member 300 is attached. In other words, the entire first end 110 to which the end member 300 is attached is located within the coverage range of the corresponding second end 210, i.e., the first end 110 does not protrude from the second end 210, i.e., the length of the shaft rod 100 is smaller than the length of the tubular member 200. In some embodiments, the first end 110 to which the end member 300 is attached may partially protrude from outside the coverage range of the corresponding second end 210, i.e., the first end 110 may protrude from outside the coverage area A shown in Figure 4, as long as it is ensured that the second end 210 covers at least a part of the end member 300, not limited to this embodiment.

[0043] 1 to 6, in one embodiment of the present application, the stopper structure 310 of the end member 300 may be located outside the second end 210 corresponding to the end member 300 in the tubular member 200. In other words, the stopper structure 310 of the end member 300 may be located outside the coverage area A shown in FIG.

[0044] As shown in Figures 2, 4 and 6, in an embodiment of the present application, the mounting structure 400 may include a guide hole 411 and a guide shaft 412. Specifically, the guide hole 411 is coaxially opened on the end face of the first end portion 110. The guide shaft 412 is connected to the end member 300, and the guide shaft 412 is used to be inserted into the guide hole 411. With the above design, the present application can provide the axial guide function and the radial position limiting function for the mounting of the end member 300 and the shaft rod 100 by using the guide shaft 412 and the guide hole 411 that are inserted and fitted.

[0045] As shown in Figures 1 to 6, in one embodiment of the present application, the mounting structure 400 may further include a guide bush 420. Specifically, the guide bush 420 is installed on the end of the end member 300 facing the shaft rod 100, and the guide bush 420 can be sleeved around the first end 110. In addition, a first position limiting structure is installed on the side wall of the first end 110, and a second position limiting structure that fits with the first position limiting structure is installed on the inner wall of the guide bush 420. Thus, the cleaning brush can restrict the relative rotation between the shaft rod 100 and the end member 300 due to the fit between the first position limiting structure and the second position limiting structure.

[0046] 2, 4 and 6, in one embodiment of the present application, the mounting structure 400 may simultaneously include a guide hole 411, a guide shaft 412, and a guide bush 420. In addition, the guide bush 420 may be arranged at intervals so as to surround the periphery of at least a portion of a segment of the guide shaft 412. In some embodiments, the mounting structure 400 may include only the guide hole 411 and the guide shaft 412, or may include only the guide bush 420, or may realize the mounting and fixing of the end member 300 and the first end 110 of the shaft rod 100 by other structures.

[0047] As shown in FIG. 6, in one embodiment of the present application, the ratio of the distance L1 between the stopper structure 310 corresponding to the same first end 110 and one end of the guide bush 420 that is distant from the main body along the axial direction of the shaft rod 100 to the length L0 of the shaft rod 100 may be greater than 5%, for example, 5%, 8%, 10%, 15%, etc. Thus, compared with the design of the end cap of the conventional cleaning brush having a relatively small size, the present application has a design in which the guide bush 420 portion is interposed between the first end 110 and the second end 210, so that the end member 300 has a relatively large size (including the size of the guide bush 420), thereby increasing the space in which the wound material of the end member 300 is wound, and further preventing the wound material from being wound around the shaft rod 100. In other words, the present application adopts a design related to the length of the above-mentioned related members, so that the length of the mating segment between the end member 300 and the shaft rod 100 is longer, the size is larger, and processing and production are facilitated.

[0048] As shown in Fig. 6 and Fig. 8, in one embodiment of the present application, the first position limiting structure may be a position limiting groove 431, and the second position limiting structure may be a position limiting rib 432, and the position limiting groove 431 is consistent with the shape of the position limiting rib 432. Thus, in the process of the guide bush 420 being sleeved onto the first end 110 of the shaft rod 100, the position limiting rib 432 can be fitted into the position limiting groove 431 to provide a guide and stop function during the above-mentioned installation process. In some embodiments, the first position limiting structure may be the position limiting rib 432, and the second position limiting structure may be the position limiting groove 431. In other words, in various possible embodiments that meet the design concept of the present application, one of the first position limiting structure and the second position limiting structure may be the position limiting rib 432, and the other may be the position limiting groove 431 whose shape is consistent with the position limiting rib 432. In addition, the first position limiting structure and the second position limiting structure may adopt other types of stopper fitting structures and are not limited thereto.

[0049] 6 and 8, in one embodiment of the present application, the shape of the position limiting rib 432 and the position limiting groove 431 may be a matching spiral shape, so that during disassembly and assembly of the end member 300 and the shaft rod 100, they can have a relative displacement along the axial direction and a relative rotation along the circumferential direction.

[0050] Based on the design that the position limiting rib 432 and the position limiting groove 431 are spiral-shaped, in one embodiment of the present application, the spiral direction of the spiral-shaped position limiting rib 432 and the position limiting groove 431 may be opposite to the rotation direction of the axial rod 100. With the above design, when the axial rod 100 rotates in a certain rotation direction in the cleaning device, the spiral direction of the position limiting rib 432 and the position limiting groove 431 is opposite to the rotation direction, so that the position limiting rib 432 and the position limiting groove 431 can be further prevented from coming off, and the stability and reliability of the installation between the axial rod 100 and the end member 300 can be ensured.

[0051] As shown in Figures 7 and 8, based on the design in which the position limiting rib 432 and the position limiting groove 431 are spiral-shaped, in one embodiment of the present application, at least one first mounting mark 421 may be installed on the outer wall of the guide bush 420, and the first mounting mark 421 can indicate the rotation direction when the end member 300 and the shaft rod 100 are mounted (i.e., the spiral direction of the position limiting rib 432 and the position limiting groove 431).

[0052] 7 and 8, based on the design of the first mounting mark 421 on the guide bush 420, in one embodiment of the present application, a deformation groove may be provided on the outer wall of the guide bush 420, which can serve to prevent shrinkage deformation of the injection molded products such as the guide bush 420 and the end member 300. In addition, the deformation groove may adopt a special shape, such as a roughly triangular shape, an arrow shape, etc., which serves as the first mounting mark 421 to prevent shrinkage deformation and at the same time indicate the rotation direction when the end member 300 and the shaft rod 100 are mounted.

[0053] Referring to Figure 9, Figure 9 shows a representative enlarged schematic view of an exploded state of some structures in another embodiment of the cleaning brush proposed in the present application, specifically, the exploded state of one end member 300 and one first end 110 of the pole.

[0054] 9, in one embodiment of the present application, one of the first position limiting structure and the second position limiting structure may be a position limiting rib 432, and the other may be a position limiting groove 431. In addition, the position limiting rib 432 and the position limiting groove 431 may have linear shapes that match each other.

[0055] 4 and 6, in one embodiment of the present application, when the second position limiting structure is the position limiting rib 432, the position limiting rib 432 may be installed on the inner wall of the guide bush 420 by an integral molding process. In some embodiments, the position limiting rib 432 may be installed on the inner wall of the guide bush 420 by other processes, such as welding, pressing a part of the structure of the guide bush 420, etc. In addition, when the second position limiting structure is the position limiting groove 431, the position limiting groove 431 may be a recessed groove opened on the inner wall of the guide bush 420, or may be a through groove penetrating the guide bush 420.

[0056] In one embodiment of the present application, the first end 110 may be provided with a plurality of first position limiting structures which may be evenly spaced apart along the circumferential direction of the axial rod 100 .

[0057] In one embodiment of the present application, the guide bush 420 may be provided with a plurality of second position limiting structures that are evenly spaced apart along the circumferential direction of the guide bush 420 .

[0058] To summarize the above, take the example of the first position limiting structure and the second position limiting structure being the position limiting groove 431 and the position limiting rib 432 respectively. When there are multiple position limiting grooves 431, the number of position limiting ribs 432 may be one or more, and the number of position limiting ribs 432 may be no more than the number of position limiting grooves 431, but may be less than the number of position limiting grooves 431.

[0059] As shown in Figures 7 and 8, in an embodiment of the present application, a third position limiting structure may be installed on the side wall of the first end 110, and a fourth position limiting structure that fits into the third position limiting structure may be installed on the inner wall of the guide bush 420. In addition, one of the third position limiting structure and the fourth position limiting structure may be a bump buckle 441, and the other may be a locking groove 442 that fits into the bump buckle 441. With the above design, the present application achieves easy disassembly and assembly and the function of determining whether the product is completely installed through the locking of the bump buckle 441 and the locking groove 442, reducing the difficulty of installation or removal, providing a certain effect of preventing incorrect installation, and further improving the user experience.

[0060] In one embodiment of the present application, a plurality of first position limiting structures and a plurality of third position limiting structures may be provided on the first end 110 of the shaft rod 100, and the number of the first position limiting structures and the third position limiting structures may be equal. In addition, the plurality of first position limiting structures and the plurality of third position limiting structures may be alternately and spaced apart in the circumferential direction of the shaft rod 100.

[0061] Based on the design in which the same number of first position limiting structures and third position limiting structures are installed on the first end 110 of the axial rod 100, in one embodiment of the present application, the first position limiting structures and the third position limiting structures may be evenly spaced apart in the circumferential direction of the axial rod 100. With the above design, in the process in which the end member 300 transmits torque to the axial rod 100, the present application can make the bearing force of each stopper structure more uniform.

[0062] In one embodiment of the present application, the guide bush 420 may be provided with a plurality of second position limiting structures and a plurality of fourth position limiting structures, and the number of the second position limiting structures and the number of the fourth position limiting structures may be equal. In addition, the plurality of second position limiting structures and the plurality of fourth position limiting structures may be alternately and spaced apart in the circumferential direction of the shaft rod 100.

[0063] Based on the design in which the same number of second position limiting structures and fourth position limiting structures are installed on the guide bush 420, in one embodiment of the present application, the second position limiting structures and the fourth position limiting structures may be evenly spaced apart in the circumferential direction of the shaft rod 100. With the above design, in the process in which the end member 300 transmits torque to the shaft rod 100, the present application can make the bearing force of each stopper structure more uniform.

[0064] 8, in one embodiment of the present application, when the fourth position limiting structure is a bump buckle 441, the bump buckle 441 may be installed on the inner wall of the guide bush 420 by an integral molding process. In some embodiments, the bump buckle 441 may be installed on the inner wall of the guide bush 420 by other processes, such as welding, forming a part of the structure of the guide bush 420 by pressing, etc. In addition, when the fourth position limiting structure is a locking groove 442, the locking groove 442 may be a recessed groove opened on the inner wall of the guide bush 420, or may be a through groove penetrating the guide bush 420.

[0065] 5 and 8, in an embodiment of the present application, at least one second mounting mark 422 may be provided on the outer wall of the guide bush 420, and the position of the at least one second mounting mark 422 may correspond to the position of the at least one second position limiting structure, thereby indicating the position of the at least one second position limiting structure. In some embodiments, when multiple second position limiting structures are provided on the inner wall of the guide bush 420, only one second mounting mark 422 may be provided on the outer wall of the guide bush 420, and the one second mounting mark 422 corresponds to any one of the second position limiting structures, or multiple second mounting marks 422 may be provided on the outer wall of the guide bush 420, and each of the multiple second mounting marks 422 corresponds to a multiple second position limiting structure.

[0066] As shown in Figures 1 to 6, in one embodiment of the present application, the stopper structure 310 of the end member 300 may be a barrier ring, which may surround the outer periphery of the end member 300 to present a closed loop structure.

[0067] As shown in FIG. 1 to FIG. 7, in one embodiment of the present application, the two first ends 110 of the shaft rod 100 are both fitted with end members 300. A transmission structure 320 for transmitting torque is installed on one of the two end members 300. The other of the two end members 300 is used to install a bearing structure 500. The end member 300 on which the transmission structure 320 is installed is used to connect to a driving mechanism of a cleaning device through the transmission structure 320, and the end member 300 on which the bearing structure 500 is installed is used to rotate and connect to another structure (such as a main body) of the cleaning device through the bearing structure 500. Thus, when the end member 300 on which the transmission structure 320 is installed (i.e., the driving end cap) is installed, the driving end cap rotates around the guide hole 411, and the spiral position limiting groove 431 and the position limiting rib 432 cause the driving end cap to move along the axial direction while rotating, thereby completing the installation and removal of the entire end cap. Similarly, when the end member 300 (i.e., the bearing side end cap) for mounting the bearing structure 500 is mounted, the bearing side end cap may be attached and detached with the same movement logic. At the same time, the spiral direction of the spiral position limiting rib 432 and the position limiting groove 431 is opposite to the rotation direction of the shaft 100 (i.e., the main brush operating direction), so that the spiral does not come off during operation. According to the above design, if the end member 300 is not mounted during the installation of the cleaning brush, the fitting structures (e.g., the stacked structure and the bearing structure 500) to which the two end members 300 are respectively mounted or installed are also not installed. Therefore, if the end member 300 is not installed properly, the main brush members (e.g., the shaft 100 and the tubular member 200) cannot be installed properly. This can achieve a more thorough function of preventing installation from being missed. In addition, when end members 300 are attached to both of the two first ends 110 of the axial rod 100, the same mounting structure 400 is adopted between the two first ends 110 of the axial rod 100 and the two end members 300, which makes it easier to prevent incorrect mounting during production, reduces the rate of processing errors, and helps improve the production rate.

[0068] As shown in Figures 1 and 2, based on the design of installing the transmission structure 320 on an end member 300, in one embodiment of the present application, the transmission structure 320 may include a columnar structure with a regular polygonal cross section, and the axis of the columnar structure overlaps with the axis of both the end member 300 and the axial rod 100, so that the transmission structure 320 is used to engage with the output end of a driving mechanism, for example, the final stage output gear of a gearbox.

[0069] As shown in Figures 2 to 6, based on a design in which the bearing structure 500 is attached to another end member 300, in one embodiment of the present application, one end of the guide shaft 412 installed on this end member 300, which faces away from the shaft rod 100, protrudes from the end member 300 as an engaging segment 4121 that engages with the bearing structure 500, and the bearing structure 500 is detachably installed on this engaging segment 4121 of the guide shaft 412.

[0070] 5 and 6, based on the design of the guide shaft 412 having the mating segment 4121, in one embodiment of the present application, the mating segment 4121 of the guide shaft 412 may be provided with a positioning groove 4122 along the circumferential direction, for example, by designing the outer diameter of the mating segment 4121 to be smaller than that of other segments of the guide shaft 412, so that the mating segment 4121 forms the positioning groove 4122. In addition, the positioning groove 4122 is used to position and fit with the bearing structure 500 and prevent the bearing structure 500 from swinging.

[0071] As shown in FIG. 8 and FIG. 9, in one embodiment of the present application, the end member 300 may be provided with a friction structure 330, such as but not limited to friction lines, friction protrusions, etc., which makes the end member 300 easier to screw in during installation.

[0072] In one embodiment of the present application, the tubular member 200 may be a flexible member or a rigid member, and the brush member may be attached to the outer surface of the tubular member 200 by a method such as gluing or inserting, and when the tubular member 200 is a flexible member, the brush member may be integrally formed with the tubular member 200, and in some embodiments, the brush member may be in other forms such as a vane or a brush.

[0073] It should be noted that the cleaning brushes shown in the accompanying drawings and described herein are merely examples of many cleaning brushes that may employ the principles of the present application, and it should be expressly understood that the principles of the present application are not limited to any of the details or any of the components of the cleaning brushes shown in the accompanying drawings or described herein.

[0074] The following examples are given: In one embodiment of the present application, the position limiting ribs and the position limiting grooves may each have a linear or spiral shape that coincides in shape.

[0075] In one embodiment of the present application, the second position limiting structure is a position limiting rib, which is an inner wall installed on the guide bush by welding or integral molding process, or formed from a part of the structure of the guide bush by a press process; or the second position limiting structure is a position limiting groove, which is a recessed groove opened on the inner wall of the guide bush, or a through groove penetrating the guide bush.

[0076] In one embodiment of the present application, a plurality of first position limiting structures are provided on the first end, and the plurality of first position limiting structures are evenly spaced apart along the circumferential direction of the shaft rod.

[0077] In one embodiment of the present application, a plurality of second position limiting structures are provided on the guide bush, and the plurality of second position limiting structures are evenly spaced apart along the circumferential direction of the guide bush.

[0078] In one embodiment of the present application, the first end portion is provided with a plurality of first position limiting structures and a plurality of third position limiting structures, which are equal in number, and the plurality of first position limiting structures and the plurality of third position limiting structures are alternately and spaced apart from each other in the circumferential direction of the shaft rod.

[0079] In one embodiment of the present application, the plurality of first position limiting structures and the plurality of third position limiting structures are evenly spaced apart in the circumferential direction of the shaft rod.

[0080] In one embodiment of the present application, the guide bush is provided with a plurality of second position limiting structures and a plurality of fourth position limiting structures, which are equal in number, and the plurality of second position limiting structures and the plurality of fourth position limiting structures are alternately and spaced apart in the circumferential direction of the guide bush.

[0081] In one embodiment of the present application, the plurality of second position limiting structures and the plurality of fourth position limiting structures are evenly spaced apart in the circumferential direction of the guide bush.

[0082] In one embodiment of the present application, the fourth position limiting structure is a bump buckle, which is installed on the inner wall of the guide bush by welding or integral molding process, or formed from a part of the structure of the guide bush by pressing process; or the fourth position limiting structure is a locking groove, which is a recessed groove opened on the inner wall of the guide bush, or a through groove penetrating the guide bush.

[0083] In one embodiment of the present application, the transmission structure includes a columnar structure having a regular polygonal cross section, the axis of the columnar structure overlaps with the axis of both the end member and the shaft rod, and the transmission structure is used to fit into the output end of the drive mechanism.

[0084] In one embodiment of the present application, one end of the guide shaft of one end member, facing away from the shaft rod, protrudes from the end member as a mating segment that fits into the bearing structure, and the bearing structure is removably installed on the mating segment of the guide shaft.

[0085] In one embodiment of the present application, a positioning groove is provided along the circumferential direction of the mating segment, and the positioning groove is positioned and fitted with the bearing structure to prevent the bearing structure from shaking.

[0086] In an embodiment of the present application, the tubular member may be a flexible member or a rigid member.

[0087] Based on the detailed description of several exemplary embodiments of the cleaning brush proposed in the present application above, an exemplary embodiment of the smart cleaning device proposed in the present application will be described below.

[0088] In one embodiment of the present application, the smart cleaning appliance proposed in the present application includes a cleaning brush as proposed in the present application and as described in detail in the above embodiment.

[0089] It should be noted that the smart cleaning appliances illustrated in the accompanying drawings and described herein are merely examples of many smart cleaning appliances that may employ the principles of the present application, and it should be expressly understood that the principles of the present application are not limited to any of the details or any of the components of the smart cleaning appliances illustrated in the accompanying drawings or described herein.

[0090] In summary, the cleaning brush proposed in this application includes an axial rod 100, a tubular member 200, and an end member 300. The end member 300 is attached to the first end 110 of the axial rod 100, the end member 300 has a stopper structure 310 for preventing the winding from being excessively stretched away from the cleaning brush, the end member 300 and the first end 110 each have a fitting mounting structure 400, the mounting structure 400 includes a guide bush 420 installed at the end of the end member 300 facing the axial rod 100, the guide bush 420 is used to be sleeved around the first end 110 of the axial rod 100, and the second end 210 corresponding to the tubular member 200 and the end member 300 covers at least a part of the guide bush 420. With the above design, the present application utilizes that at least a part of the guide bush 420 is interposed between the axial rod 100 and the corresponding end of the tubular member 200, so that the wound material wound on the tubular member 200 is avoided from being wound directly on the axial rod 100, and the wound material is wound on the guide bush 420, and further, the wound material is removed together with the removal of the end member 300, making cleaning more convenient.

[0091] Exemplary embodiments of the cleaning brush and smart cleaning device proposed in the present application have been described and / or illustrated in detail above. However, the embodiments of the present application are not limited to the specific embodiments described herein, and conversely, the components and / or steps of each embodiment may be used independently and separately from other components and / or steps described herein. Each component and / or step of one embodiment may be used in conjunction with other components and / or steps of other embodiments. When introducing elements / components / etc. described and / or illustrated herein, the terms "a", "one", "above" and the like are used to indicate the presence of one or more elements / components / etc. The terms "including", "comprise", and "having" are used to indicate an open inclusive meaning, and in addition to the elements / components / etc. listed, additional elements / components / etc. may be present. It should be noted that the terms "first", "second", etc. in the claims and the specification are used only as markings and are not numerical limitations on their subject matter.

[0092] Although the cleaning brush and smart cleaning device proposed in this application have been described based on different specific embodiments, those skilled in the art will recognize that modifications may be made in the practice of this application within the spirit and scope of the claims.

Claims

1. A cleaning brush, A shaft rod having two first ends opposite to each other along an axial direction, the first ends having at least one first position limiting structure disposed on a side wall thereof; a tubular member sleeved coaxially around the axial rod, the tubular member having two axially opposite second ends, the tubular member having a brush member disposed on an outer surface thereof; at least one end member attached to at least one of the first ends, the end member having a stop structure for preventing the wound material from being excessively stretched away from the cleaning brush, the end member and the first end each having a mating mounting structure, the mounting structure including a guide bush, the guide bush being installed at an end of the end member facing the axial rod, and the end member adapted to be sleeved around the first end; A cleaning brush, wherein the second end of the tubular member corresponding to the end member covers at least a portion of the guide bush located at the end of the end member facing the axial rod.

2. The cleaning brush according to claim 1 , wherein the second end of the tubular member corresponding to the end member covers the first end to which the end member is attached.

3. The cleaning brush according to claim 1 , wherein the stopper structure of the end member is located outside the second end of the tubular member corresponding to the end member.

4. The mounting structure includes: A guide hole formed coaxially in an end surface of the first end portion; The cleaning brush according to claim 1 , further comprising a guide shaft connected to the end member and adapted to be inserted into the guide hole.

5. 2. The cleaning brush according to claim 1, wherein the distance between the stopper structure corresponding to the same first end and the end of the guide bush that is away from the main body along the axial direction of the shaft rod is greater than 5% of the length of the shaft rod.

6. 2. The cleaning brush according to claim 1, wherein the end member is integrally formed with the guide bush.

7. At least one first position limiting structure is provided on a side wall of the first end portion, and at least one second position limiting structure is provided on an inner wall of the guide bush, the second position limiting structure being fitted into the at least one first position limiting structure, one of the first position limiting structure and the second position limiting structure is a position limiting rib and the other is a position limiting groove, and shapes of the position limiting rib and the position limiting groove are consistent with each other; and / or 7. A cleaning brush as described in any one of claims 1 to 6, wherein at least one third position limiting structure is provided on a side wall of the first end, and at least one fourth position limiting structure that fits into the at least one third position limiting structure is provided on an inner wall of the guide bush, one of the third position limiting structure and the fourth position limiting structure is a bump buckle, and the other is a locking groove that engages with the bump buckle.

8. A cleaning brush as described in any one of claims 1 to 6, wherein at least one second mounting mark is provided on an outer wall of the guide bush, and the position of the at least one second mounting mark corresponds to the position of at least one of the second position limiting structures and is used to indicate the position of the at least one second position limiting structure.

9. The cleaning brush according to claim 1 , wherein the stopper structure is a barrier ring that surrounds an outer periphery of the end member to present a closed loop structure.

10. A cleaning brush as claimed in any one of claims 1 to 6, wherein the end members are attached to the two first ends of the shaft rod, one of the two end members is provided with a transmission structure, and the other is used to attach a bearing structure.

11. The cleaning brush according to claim 7 , wherein the position limiting rib and the position limiting groove are linear or spiral in shape and are identical to each other.

12. The second position limiting structure is a position limiting rib, and the position limiting rib is installed on the inner wall of the guide bush by welding or an integral molding process, or is formed by a pressing process as a part of the structure of the guide bush; Or, 8. The cleaning brush according to claim 7, wherein the second position limiting structure is a position limiting groove, and the position limiting groove is a recessed groove formed in an inner wall of the guide bush, or a through groove penetrating the guide bush.

13. The cleaning brush according to claim 1 , wherein the first end portion is provided with a plurality of the first position limiting structures that are evenly spaced apart from one another along a circumferential direction of the shaft rod.

14. The cleaning brush according to claim 1 , wherein the guide bush is provided with a plurality of second position limiting structures that are evenly spaced apart from one another along a circumferential direction of the guide bush.

15. 8. The cleaning brush according to claim 7, wherein the first end portion is provided with a plurality of the first position limiting structures and a plurality of the third position limiting structures, the number of which is the same, and the plurality of the first position limiting structures and the plurality of the third position limiting structures are arranged alternately and at intervals in the circumferential direction of the shaft rod.

16. The cleaning brush according to claim 15 , wherein the first position limiting structures and the third position limiting structures are uniformly spaced apart in a circumferential direction of the shaft rod.

17. The cleaning brush described in claim 7, wherein the guide bush is provided with a plurality of the second position limiting structures and a plurality of the fourth position limiting structures, the numbers of which are the same, and the plurality of the second position limiting structures and the plurality of the fourth position limiting structures are arranged alternately and at intervals in the circumferential direction of the guide bush.

18. The cleaning brush according to claim 17 , wherein the second position limiting structures and the fourth position limiting structures are uniformly arranged at intervals in a circumferential direction of the guide bush.

19. The fourth position limiting structure is a bump buckle, and the bump buckle is installed on the inner wall of the guide bush by welding or integral molding process, or is formed by a pressing process in a structure of a part of the guide bush; Or, 8. The cleaning brush according to claim 7, wherein the fourth position limiting structure is a locking groove, and the locking groove is a recessed groove formed in an inner wall of the guide bush, or a through groove penetrating the guide bush.

20. 11. The cleaning brush according to claim 10, wherein the transmission structure includes a columnar structure having a regular polygonal cross section, the axis of the columnar structure overlaps with the axis of both the end member and the shaft rod, and the transmission structure is used to fit an output end of a driving mechanism.

21. The cleaning brush according to claim 10, wherein one end of a guide shaft of one of the end members, facing away from the shaft rod, protrudes from the end member and serves as a mating segment that fits into the bearing structure, and the bearing structure is removably installed on the mating segment of the guide shaft.

22. The cleaning brush according to claim 21 , wherein the fitting segment is provided with a positioning groove along a circumferential direction, and the positioning groove is positioned and fitted into the bearing structure to prevent the bearing structure from rocking.

23. The cleaning brush according to claim 1 , wherein the tubular member is a flexible member or a rigid member.

24. A smart cleaning device comprising a cleaning brush according to any one of claims 1 to 23.

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