An assembled cleaning roller and cleaning tool

Abstract

The application discloses an assembled cleaning roller and a cleaning tool, wherein the assembled cleaning roller comprises a roller support provided with a roller sponge, the roller support comprises a mounting base, first mounting spaces for mounting a driving mechanism and second mounting spaces for mounting a telescopic rotating shaft are arranged on both sides of the mounting base in an axial direction, the first mounting spaces are provided with mounting guide structures, the second mounting spaces are provided with detachable telescopic transmission mechanisms, and the driving mechanism is connected with the mounting base through a connecting shaft structure. When mounting, interference fit does not occur when reaching an annular mounting slope, and there is a large activity allowance and mounting space under the action of the annular mounting slope, and a little deviation will not cause a clamping phenomenon, so that the mounting difficulty is reduced. Meanwhile, the assembled structure is adopted, and only the telescopic transmission mechanism needs to be replaced when the telescopic transmission mechanism is worn, so that the use cost is reduced, replacement is facilitated, and energy saving and environmental protection are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning, in particular to an assembled cleaning roller and a cleaning tool. BACKGROUND

[0002] The existing cleaning tool has a cleaning roller, such as the cleaning head and cleaning tool for cleaning tool disclosed in Chinese patent document CN213910076U. The cleaning head comprises a shell comprising a fixing groove, a roller arranged in the shell, a first fixing part arranged at one end of the roller, comprising a fixing block cooperating with the fixing groove to fix one end of the roller on the shell, an elastic locking device arranged on the shell or the first fixing part, comprising a lock tongue, a lock groove arranged on the first fixing part or the shell, cooperating with the lock tongue to lock the roller. One end of the roller is locked with the shell through the cooperation of the lock tongue and the lock groove, and the elastic device is arranged to make the roller more convenient to take out or install.

[0003] Since the cleaning roller is sleeved on one side wall of the motor of the cleaning head, and is in transmission connection with the rotating shaft of the motor, the other end of the cleaning roller is clamped on the other side wall of the cleaning head through the elastic button, and the inner wall of the roller support on the cleaning roller and the outer wall of the bearing on the motor mounting seat are in interference fit to better ensure that the cleaning roller does not shake and move in balance during use. However, during the work process, the moving parts usually wear out, resulting in increased noise, so the easily worn parts need to be replaced, and the existing cleaning roller structure is complex and not easy to disassemble after assembly, so that only the cleaning roller can be replaced, which increases the user's use cost, and after installation, the whole needs to be scrapped if it does not meet the requirements, which also increases the production cost, and is not conducive to energy saving and emission reduction. SUMMARY

[0004] The technical problem solved by the present application is to provide an assembled cleaning roller and a cleaning tool, wherein the assembled cleaning roller can avoid wear and tear and can only be replaced as a whole, reducing the use cost, and at the same time, the installation difficulty can be reduced by avoiding the installation jam caused by not being easy to align.

[0005] In order to solve the above technical problems, the present application provides an assembled cleaning roller, characterized in that it comprises a roller support provided with a roller sponge, the roller support comprises a mounting seat, characterized in that a first mounting space for mounting a driving mechanism and a second mounting space for a telescopic rotating shaft are respectively arranged on both sides of the mounting seat in the axial direction, the first mounting space is provided with a mounting guide structure; the second mounting space is provided with a detachable telescopic transmission mechanism, and the driving mechanism is connected with the mounting seat through a connecting shaft structure;

[0006] The telescopic transmission mechanism comprises a shaft core fixing base, a shaft core penetrating through the shaft core fixing base, a shaft core sleeve sleeved with the shaft core and fixed with the shaft core fixing base, an elastic component provided between the shaft core sleeve and the shaft core fixing base and allowing the shaft core to extend outward, the elastic component being sleeved on the shaft core between the shaft core fixing base and the shaft core sleeve, a limiting structure provided between the shaft core and the shaft core fixing base, a bearing provided at one end of the shaft core extending out of the shaft core fixing base, and a first installation space provided with an annular installation inclined surface in an interference fit with the outer periphery of the bearing.

[0007] The installation guide structure is provided with a first cavity and a second cavity inward from the end portion, the first cavity has a larger diameter than the second cavity; and a third cavity with a gradually decreasing diameter is provided between the first cavity and the second cavity.

[0008] Further, the outer ring of the bearing is provided with a key cover.

[0009] Further, the elastic component comprises a telescopic spring.

[0010] Further, the end portion of the key cover is provided with a rotation-stopping structure.

[0011] Further, the rotation-stopping structure comprises one or more axial side surfaces provided with a plane.

[0012] Further, the telescopic transmission mechanism further comprises a bearing fixing frame and a bearing pressing block sleeved on the shaft core and located on both sides of the bearing, and the shaft core is provided with a through hole in the axial direction.

[0013] Further, the shaft core fixing base is provided with a guide groove in the axial direction and matched with a guide strip provided on the surface of the shaft core.

[0014] Further, the side wall of the third cavity forms an annular guide inclined surface.

[0015] Further, the annular guide inclined surface has an inclination angle of 5-15 degrees.

[0016] Further, the connecting shaft structure comprises at least two limiting grooves provided in the circumferential direction, and a guide inclined surface is provided on the end face between each limiting groove.

[0017] Further, the limiting grooves are uniformly distributed in the circumferential direction.

[0018] Further, the number of limiting grooves is three or four.

[0019] The application also provides a cleaning tool, which comprises a cleaning head provided with an assembled cleaning roller, the cleaning roller comprises a roller support provided with a roller sponge, the roller support comprises a mounting seat, characterized in that a first mounting space for mounting a driving mechanism and a second mounting space for mounting a telescopic rotating shaft are respectively arranged on both sides of the mounting seat in the axial direction, the first mounting space is provided with a mounting guide structure, and the second mounting space is provided with a detachable telescopic transmission mechanism, and the driving mechanism is connected with the mounting seat through a connecting shaft structure.

[0020] The telescopic transmission mechanism comprises a shaft core fixing seat, a shaft core penetrating through the shaft core fixing seat, a shaft core sleeve sleeved with one end of the shaft core and fixed with the shaft core fixing seat, an elastic component arranged between the shaft core sleeve and the shaft core fixing seat and enabling the shaft core to extend outward, a limiting structure arranged between the shaft core and the shaft core fixing seat, a bearing arranged at one end of the shaft core extending out of the shaft core fixing seat, and an annular mounting slope formed in an interference fit with the outer periphery of the bearing and arranged in the first mounting space.

[0021] The mounting guide structure is provided with a first cavity and a second cavity inward from the end portion, the diameter of the first cavity is greater than that of the second cavity, and a third cavity with a gradually decreasing diameter is arranged between the first cavity and the second cavity.

[0022] Further, the outer ring of the bearing is provided with a key cover.

[0023] Further, the elastic component comprises a telescopic spring.

[0024] Further, the end portion of the key cover is provided with a rotation stopping structure for preventing rotation.

[0025] Further, the rotation stopping structure comprises one or more planes arranged on the axial side surface.

[0026] Further, the telescopic transmission mechanism further comprises a bearing fixing frame and a bearing pressing block sleeved on the shaft core and arranged on both sides of the bearing respectively, and the shaft core is provided with a through hole in the axial direction.

[0027] Further, the shaft core fixing seat is provided with a guide groove matched with a guide strip arranged on the surface of the shaft core in the axial direction.

[0028] Further, the side wall of the third cavity forms an annular guide slope.

[0029] Further, the annular guide slope is inclined at an angle of 5-15 degrees.

[0030] Further, the connecting shaft structure comprises at least two limiting grooves arranged in the circumferential direction, and a guide slope is arranged on the end surface between each limiting groove.

[0031] Further, the limiting grooves are uniformly distributed along the circumferential direction.

[0032] Further, the number of the limiting grooves is three or four.

[0033] Further, the cleaning tool further comprises a universal shaft connector connecting the driving mechanism and the cleaning head, and a bearing cooperating with the inner wall of the second cavity is arranged between the universal shaft connector and the roller support, and an outer ring of the bearing is provided with a ring-shaped guiding slope consistent with the annular guiding slope and capable of forming an interference fit after installation.

[0034] The assembled cleaning roller and the cleaning tool, wherein the assembled cleaning roller comprises a roller support provided with a roller sponge, and the roller support comprises a mounting seat, characterized in that a first mounting space for mounting the driving mechanism and a second mounting space for mounting the telescopic rotating shaft are respectively arranged on both sides of the mounting seat in the axial direction, the first mounting space is provided with a mounting guiding structure, the second mounting space is provided with a detachable telescopic transmission mechanism, and the driving mechanism is connected with the mounting seat through a connecting shaft structure. When the annular mounting slope is reached during installation, the interference fit does not occur yet, and there is a large activity allowance and installation space under the action of the annular mounting slope, and a slight deviation will not cause the clamping phenomenon, thereby reducing the installation difficulty. Meanwhile, the assembled structure is adopted, and only the telescopic transmission mechanism needs to be replaced when the telescopic transmission mechanism is worn, so that the use cost can be reduced, and energy saving and environmental protection are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the description only show some embodiments of the present application, and should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0036] Figure 1 It is a schematic view of the axial cross-sectional structure of the cleaning roller embodiment.

[0037] Figure 2 It is a schematic view of the exploded structure of the cleaning roller embodiment.

[0038] Figure 3 It is a schematic view of the axial cross-sectional structure of the telescopic transmission mechanism embodiment.

[0039] Figure 4 It is a schematic view of the axial cross-sectional structure of the telescopic transmission mechanism embodiment.

[0040] Figure 5 It is a schematic view of the axial cross-sectional structure of the assembled cleaning roller embodiment from another perspective.

[0041] Figure 6 Structure diagram of the drum support embodiment.

[0042] Figure 7 Structure diagram of the drum support along the axial direction.

[0043] Figure 8 Structure diagram of the drum support along the axial direction from another perspective.

[0044] Figure 9 Structure diagram of the drum support along the axial direction from another perspective.

[0045] Figure 10 Structure diagram of the drum support along the axial direction from another perspective.

[0046] The purposes, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0047] The claims of the present application will be further described in detail below with reference to specific embodiments and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0048] It should be understood that in the embodiments of the present application, all directional terms such as "upper", "lower", "left", "right", "front", "back", etc. indicate the orientation or positional relationship shown in the drawings or the orientation or positional relationship commonly used when the product is used, and are only used to simplify the description of the present application, and do not mean or imply that the device, element or component must have a specific orientation and specific orientation structure, and should not be understood as a limitation on the present application. Only for explaining the relative positional relationship, movement condition, etc. between the components shown in the drawings, when the specific posture changes, the directional indication may also change accordingly.

[0049] In addition, the ordinal numbers in the present application, such as "first", "second", etc. are only used for distinguishing purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can be explicitly or implicitly and at least one of the technical features. In the description of the present application, the meaning of "multiple" is at least two, that is, two or more, unless otherwise explicitly limited; the meaning of "at least one" is one or more.

[0050] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "arrangement", "connection", "fixing", "screwed", and other terms should be understood in a broad sense, for example, the relative position relationship between components can be fixed, or there can be a physically fixed connection between components, which can be detachable or integrated structure, which can be mechanical connection or electrical signal connection, which can be direct connection or indirect connection through intermediate media or components, which can be internal communication of two elements or interaction relationship between two elements, unless otherwise explicitly limited by the specification, and other understandings cannot achieve the corresponding functions or effects. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] The controller and control circuit involved in the present application are the conventional control technology or unit of those skilled in the art, for example, the control circuit of the controller can be realized by ordinary skilled in the art using existing technology, such as simple programming. The software or program involved in the control result realized by cooperating with hardware, such as the control process of the software or program not described in detail in the specification, belongs to the use of existing technology or the conventional technology of ordinary skilled in the art. The power supply also uses the existing technology in the art, and the main technical point of the present application is to improve the mechanical device, so the specific circuit control relationship and circuit connection of the present application are not described in detail.

[0052] The present application provides many different embodiments or examples for implementing the different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples in the present application are described. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0053] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0054] As Figures 1-4 shown, the present application provides an assembled cleaning roller embodiment.

[0055] The assembled cleaning roller comprises a roller support 1 provided with a roller sponge 2, the roller support is provided with a mounting seat 3, the mounting seat is axially provided with a first mounting space and a second mounting space for installing a driving mechanism and a telescopic rotating shaft respectively, the first mounting space is provided with a mounting guide structure, the first mounting space is provided with; the second mounting space is provided with a detachable telescopic transmission mechanism, the driving mechanism is connected with the mounting seat through a connecting shaft structure. Specifically, the telescopic transmission mechanism comprises a shaft core fixing seat 5 and a shaft core 6 penetrating through the shaft core fixing seat, and a shaft core sleeve 4 sleeved with the shaft core and fixed with the shaft core fixing seat 5 at one end, an elastic component 7 is arranged between the shaft core sleeve 4 and the shaft core fixing seat 5 to make the shaft core 6 extend outward, a limiting structure 61 is arranged between the shaft core 6 and the shaft core fixing seat 5, and a bearing 8 is arranged at one end of the shaft core 6 extending out of the shaft core fixing seat 5, and an outer ring of the bearing is provided with a key cover 10.

[0056] The elastic component 7 comprises a telescopic spring sleeved on the shaft core 6 between the shaft core fixing seat 5 and the shaft core sleeve 4, so as to make the shaft core move in the extending-outward direction. The end of the key cover is provided with a rotation-stopping structure to prevent rotation, which can ensure that the key cover and the roller support relatively rotate when the roller support rotates, that is, the rotation-stopping structure does not rotate. The rotation-stopping structure comprises an axial side provided with one less plane.

[0057] According to needs, the telescopic transmission mechanism further comprises a bearing fixing frame 9 and a bearing pressing block 11 sleeved on the shaft core and arranged on both sides of the bearing respectively, so that the bearing can be clamped and fixed on both sides. The shaft core is axially provided with a through hole, which can reduce the mass of the shaft core and reduce the useless work loss during work.

[0058] The shaft core fixing seat 5 is axially provided with a guide strip 51 matched with a guide groove 62 arranged on the surface of the shaft core, so that the guide groove and the guide strip can cooperate to ensure that the shaft core and the shaft core fixing seat do not relatively rotate during work, and the friction between the shaft core and the shaft core fixing seat during assembly is reduced.

[0059] Since the inside of the mounting cavity cannot be observed during assembly, blind assembly is required to avoid the phenomenon that the assembly is easily stuck due to small fitting gap and deviation during the assembly process, and to improve the assembly efficiency. Therefore, a guide structure is arranged in the mounting cavity, the guide structure is provided with a first cavity 1A and a second cavity 1B from the end inward, the diameter of the first cavity is greater than that of the second cavity. A third cavity 1C with gradually decreasing diameter is arranged between the first cavity and the second cavity, and the side wall of the third cavity forms an annular guide slope 12. The inclination angle of the annular guide slope is 5-15 degrees.

[0060] When the telescopic transmission mechanism is worn out, only the telescopic transmission mechanism needs to be replaced, and the entire cleaning roller does not need to be replaced, which can reduce the use cost and save energy resources.

[0061] The inside of the roller support cannot be observed during installation, so blind installation is required to avoid the alignment failure during installation, which prolongs the installation time.

[0062] As shown in Figures 6-8 The installation guide structure is provided with a first cavity and a second cavity inside the end portion, wherein the diameter of the first cavity is larger than that of the second cavity.

[0063] The shaft structure is provided with an axial end face provided with an axial first through hole 114, at least one limiting groove 110 is arranged around the first through hole, and a guide inclined surface 111 is arranged on the end face between each limiting groove, so that the installation efficiency can be improved. The limiting grooves are uniformly distributed in the circumferential direction. The number of limiting grooves is three or four. A plurality of non-through fixing holes 116 are uniformly distributed in the circumferential direction on the opposite side of the shaft structure, which are used to fix the telescopic transmission mechanism. On the other side of the second cavity 1B inside the roller support 1, a fourth cavity 13 is formed by the shaft structure, and the fourth cavity 13 accommodates the telescopic transmission mechanism.

[0064] The roller support includes a roller support body provided with a first installation space at one end, an installation frame arranged in the roller support body, and a second installation space formed by the installation frame and the other end of the roller support body. The first installation space is provided with an annular installation inclined surface in interference fit with the outer periphery of the bearing.

[0065] Specifically, the angle of the annular installation inclined surface is 5-15 degrees. The installation frame is provided with an axial end face provided with an axial first through hole, and at least one limiting groove is arranged around the first through hole. When the number of limiting grooves is two or more, each limiting groove is uniformly distributed around the first through hole. The number of limiting grooves can be three or four.

[0066] The installation frame is also provided with a guide structure. The guide structure includes a guide inclined surface on the end face of the installation frame between the two adjacent limiting grooves. When the number of guide inclined surfaces on the end face of the installation frame between the two adjacent limiting grooves is two, the directions of the two guide inclined surfaces are opposite.

[0067] According to the needs, the installation frame is provided with a fixing seat near the side close to the second installation space, the fixing seat is provided with a third installation space communicating with the first through hole and the second installation space, a clearance is arranged between the fixing seat and the roller support body, and a plurality of fixing holes are arranged on the outside of the fixing seat. The third installation space includes a cylindrical through hole, and a limiting step is formed between the first through hole and the cylindrical through hole.

[0068] The roller support body is provided with a guide groove in the clearance. When the number of guide grooves is two or more, the guide grooves are uniformly and spacedly distributed.

[0069] When the assembly is in progress, the interference fit has not yet occurred when the annular assembly slope is reached, and the annular assembly slope has a certain guiding function, so that there is a large activity allowance and assembly space when the assembly is not in place, and even if there is a slight deviation of the roller support and the bearing during the assembly process, the roller support will not be locked, thereby reducing the difficulty of assembly.

[0070] As shown in Figure 9 Another embodiment of the roller support is provided.

[0071] The roller support comprises a roller support body provided with a first assembly space at one end, and the roller support body is provided with an installation frame and a second assembly space formed by the installation frame and the other end of the roller support body, and the roller support body is provided with a second limiting step at the first assembly space and the second assembly space. Compared with the first embodiment, the third assembly space is not required in this embodiment. The assembly process is basically the same as the above-mentioned embodiments, and will not be described again.

[0072] When the assembly is in progress, the interference fit has not yet occurred when the annular assembly slope is reached, and the annular assembly slope has a certain guiding function, so that there is a large activity allowance and assembly space when the assembly is not in place, and even if there is a slight deviation of the roller support and the bearing during the assembly process, the roller support will not be locked, thereby reducing the difficulty of assembly.

[0073] As shown in Figures 1-10 Another embodiment of the roller support is provided.

[0074] The cleaning tool comprises a cleaning head, and the cleaning head is provided with an assembled cleaning roller, and the assembled cleaning roller comprises a roller support 1 provided with a roller sponge 2, and the roller support is provided with a mounting seat, and the mounting seat is provided with an assembly cavity extending to the end of the roller support at one side in the axial direction, and the mounting seat is provided with a shaft connecting structure at one side of the assembly cavity, and the other side of the mounting seat is provided with a telescopic transmission mechanism in the axial direction.

[0075] Specifically, the telescopic transmission mechanism comprises a shaft core fixing seat 5, a shaft core 6 penetrating through the shaft core fixing seat, a shaft core sleeve 4 sleeved with the shaft core and fixed with the shaft core fixing seat 5 at one end, an elastic component 7 provided between the shaft core sleeve 4 and the shaft core fixing seat 5 and enabling the shaft core 6 to extend outward, a limiting structure 61 provided between the shaft core 6 and the shaft core fixing seat 5, and a bearing 8 provided at one end of the shaft core 6 extending out of the shaft core fixing seat 5, and the outer ring of the bearing is provided with a key cover 10.

[0076] The elastic component 7 comprises a telescopic spring sleeved on the shaft core 6 between the shaft core fixing seat 5 and the shaft core sleeve 4, and the telescopic spring enables the shaft core to move in the outward extension direction. The end of the key cover 10 is provided with a rotation stopping structure for preventing rotation, and the rotation stopping structure can ensure that the key cover 10 and the roller support 1 are relatively rotated when the roller support is rotated, that is, the rotation stopping structure does not rotate. The rotation stopping structure comprises one or more planes provided on the axial side.

[0077] According to the need, the telescopic transmission mechanism further comprises a bearing fixing frame 9 and a bearing pressing block 11 sleeved on the shaft core 6 and located on both sides of the bearing 8, so that the bearing can be clamped and fixed on both sides. The shaft core 6 is provided with a through hole in the axial direction, which can reduce the mass of the shaft core and reduce the useless power loss during work.

[0078] The shaft core fixing seat 5 is provided with a guide strip 51 matched with a guide groove 62 arranged on the surface of the shaft core 6 in the axial direction. The guide groove and the guide strip cooperate to ensure that the shaft core and the shaft core fixing seat do not rotate relative to each other during work, and to reduce the friction between the shaft core and the shaft core fixing seat during assembly.

[0079] Since the inside of the installation cavity cannot be observed during assembly, blind assembly is required to avoid the phenomenon of jamming due to small fitting gap and deviation during installation, thereby improving installation efficiency. Therefore, a guide structure is arranged in the installation cavity, the guide structure is provided with a first cavity 1A and a second cavity 1B from the end inward, and the diameter of the first cavity is larger than that of the second cavity. A third cavity 1C with a gradually decreasing diameter is arranged between the first cavity 1A and the second cavity 1B, and the side wall of the third cavity forms an annular guide inclined surface 12. The angle of the annular guide inclined surface is 5-15 degrees.

[0080] Since the inside of the installation cavity cannot be observed, blind assembly is required to avoid the problem that the installation time is prolonged due to the failure of one-time alignment during installation. The shaft structure is provided with an axial end face provided with an axial first through hole 114, at least one limiting groove 110 is arranged around the first through hole, and a guide inclined surface 111 is arranged on the end face between each limiting groove, so that the installation efficiency can be improved. The limiting grooves are uniformly distributed in the circumferential direction. The number of limiting grooves is three or four. The opposite side of the shaft structure is uniformly distributed in the circumferential direction and is provided with a plurality of non-through fixing holes 116 for fixing the telescopic transmission mechanism. On the opposite side of the second cavity 1B in the drum support 1, a fourth cavity 13 is formed by the shaft structure, and the fourth cavity 13 accommodates the telescopic transmission mechanism.

[0081] When the telescopic transmission mechanism is worn out, only the telescopic transmission mechanism needs to be replaced, and the entire cleaning drum does not need to be replaced, which can reduce the use cost and save energy resources. During installation, the inside of the drum support cannot be observed, so blind assembly is required to avoid the problem that the installation time is prolonged due to the failure of one-time alignment during installation.

[0082] As shown in Figures 6-8 The installation guide structure is provided with a first cavity and a second cavity from the end inward, and the diameter of the first cavity is larger than that of the second cavity.

[0083] The shaft structure is provided with an axial end face provided with an axial first through hole 114, at least one limiting groove 110 is arranged around the first through hole, and a guide inclined surface 111 is arranged on the end face between each limiting groove, so that the installation efficiency can be improved. The limiting grooves are uniformly distributed in the circumferential direction. The number of limiting grooves is three or four. A plurality of non-through fixing holes 116 are uniformly distributed in the circumferential direction on the opposite side of the shaft structure, and are used to fix the telescopic transmission mechanism. On the other side of the second cavity 1B inside the drum support 1, a fourth cavity 13 is formed by the shaft structure, and the fourth cavity 13 accommodates the telescopic transmission mechanism.

[0084] The drum support comprises a drum support body provided with a first mounting space at one end in the axial direction, a mounting frame arranged in the drum support body, and a second mounting space formed by the mounting frame and the other end of the drum support body. The first mounting space is provided with an annular mounting inclined surface in interference fit with the outer periphery of the bearing.

[0085] Specifically, the angle of the annular mounting inclined surface is 5-15 degrees. The mounting frame is provided with an axial end face provided with an axial first through hole, and at least one limiting groove is arranged around the first through hole. When the number of limiting grooves is two or more, each limiting groove is uniformly distributed around the first through hole. The number of limiting grooves can be three or four.

[0086] The mounting frame is also provided with a guide structure. The guide structure comprises a guide inclined surface on the end face of the mounting frame between the two adjacent limiting grooves. When the number of guide inclined surfaces on the end face of the mounting frame between the two adjacent limiting grooves is two, the directions of the two guide inclined surfaces are opposite.

[0087] According to the need, the mounting frame is provided with a fixing seat on the side close to the second mounting space, the fixing seat is provided with a third mounting space communicating with the first through hole and the second mounting space, a clearance is arranged between the fixing seat and the drum support body, and a plurality of fixing holes are arranged on the outer side of the fixing seat. The third mounting space comprises a cylindrical through hole, and a limiting step is formed between the first through hole and the cylindrical through hole.

[0088] The drum support body is provided with a guide groove in the clearance. When the number of guide grooves is two or more, the guide grooves are uniformly and spacedly distributed.

[0089] During installation, interference fit does not occur when the annular mounting inclined surface is reached, and the annular mounting inclined surface has a certain guide function. When installation is not in place, there is a large activity allowance and installation space, and even if the drum support and the bearing are slightly deviated during installation, no jamming phenomenon will occur, thereby reducing the installation difficulty.

[0090] As shown in the drawings, Figure 9 The present application provides another embodiment of a drum support.

[0091] The drum support comprises a drum support body with a first mounting space axially arranged at one end, a mounting frame arranged in the drum support body, and a second mounting space formed by the mounting frame and the other end of the drum support body, and the drum support body is respectively provided with a second limiting step at the first mounting space and the second mounting space. Compared with the first embodiment, the third mounting space is not required in the embodiment. The mounting process is basically the same as that of the above-mentioned embodiments, and thus will not be described in detail.

[0092] When the interference fit does not occur on the annular mounting slope during the mounting process, there is a large activity allowance and mounting space under the action of the annular mounting slope, and a slight deviation will not cause the clamping phenomenon, thereby reducing the mounting difficulty.

[0093] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A modular cleaning roller comprising a roller support provided with a roller sponge, the roller support comprising a mounting seat, characterized in that, The first mounting space is provided with a mounting guide structure; the second mounting space is provided with a detachable telescopic transmission mechanism; the driving mechanism is connected with the mounting seat through a connecting shaft structure; the telescopic transmission mechanism comprises a shaft core fixing seat, a shaft core penetrating through the shaft core fixing seat, a shaft core sleeve sleeved with one end of the shaft core and fixed with the shaft core fixing seat, an elastic component provided between the shaft core sleeve and the shaft core fixing seat and enabling the shaft core to extend outward, a limiting structure provided between the shaft core and the shaft core fixing seat, a bearing provided at one end of the shaft core extending out of the shaft core fixing seat, and a telescopic spring provided on the shaft core between the shaft core fixing seat and the shaft core sleeve and enabling the shaft core to move in the outward extending direction; the mounting guide structure is provided with a first cavity and a second cavity inward from the end portion; the diameter of the first cavity is larger than that of the second cavity; and a third cavity with a gradually decreasing diameter is provided between the first cavity and the second cavity.

2. The modular cleaning drum of claim 1, wherein, The outer ring of the bearing is provided with a key cover.

3. The modular cleaning drum of claim 1, wherein, The first mounting space is provided with an annular mounting slope in interference fit with the outer periphery of the bearing.

4. The modular cleaning drum of claim 2, wherein, The end portion of the key cover is provided with a rotation stopping structure for preventing rotation.

5. The modular cleaning drum of claim 4, wherein, The rotation stopping structure comprises an axial side surface provided with not less than one plane.

6. The modular cleaning drum of claim 1, wherein, The telescopic transmission mechanism further comprises a bearing fixing frame and a bearing pressing block sleeved on the shaft core and located on both sides of the bearing, and the shaft core is provided with a through hole in the axial direction.

7. The modular cleaning drum of claim 1, wherein, The shaft core fixing seat is provided with a guide groove in cooperation with a guide strip arranged on the surface of the shaft core in the axial direction.

8. The modular cleaning drum of claim 1, wherein, The side wall of the third cavity forms an annular guide slope.

9. The modular cleaning drum of claim 8, wherein, The angle of inclination of the annular guide slope is 5-15 degrees.

10. The modular cleaning drum of claim 1, wherein, The connecting shaft structure comprises at least two limiting grooves arranged in the circumferential direction, and a guide slope is arranged on the end surface between each limiting groove.

11. The modular cleaning drum of claim 10, wherein, The limiting grooves are uniformly distributed in the circumferential direction.

12. The modular cleaning drum of claim 11, wherein, The number of limiting grooves is three or four.

13. A cleaning tool comprising a cleaning head provided with a modular cleaning roller, characterized in that, The assembled cleaning roller has the assembled cleaning roller according to any one of claims 1-12.

14. The cleaning tool of claim 13, wherein, The cleaning tool further comprises a universal shaft connector connecting the driving mechanism with the cleaning head, and a bearing is arranged between the universal shaft connector and the roller support and cooperates with the inner wall of the second cavity; the outer ring of the bearing is provided with an annular guide slope consistent with the annular guide slope and capable of forming interference fit after being installed in place.

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