Assembly type cleaning roller and cleaning tool

Abstract

The invention discloses an assembly type cleaning roller and a cleaning tool, the assembly type cleaning roller comprises a roller support provided with a roller sponge, the roller support comprises a mounting seat, and a first mounting space used for mounting a driving mechanism and a second mounting space used for mounting a telescopic rotating shaft are axially arranged on the two sides of the mounting seat respectively; the first mounting space is provided with a mounting guide structure and is provided with a mounting guide structure; the second installation space is provided with a detachable telescopic transmission mechanism, and the driving mechanism is connected with the installation base through a connecting shaft structure. During installation, interference fit does not occur when the annular installation inclined plane is reached, and under the action of the annular installation inclined plane, large movement allowance and installation space exist, and the clamping phenomenon cannot be caused even if slight deviation exists, so that the installation difficulty is reduced. Meanwhile, an assembly type structure is adopted, when the telescopic transmission mechanism is abraded, only the telescopic transmission mechanism needs to be replaced, the use cost can be reduced, replacement is convenient, and energy conservation and environment protection are achieved.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202210334543.1 entitled "An Assembled Cleaning Roller and Cleaning Tool", the contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of cleaning technology, and more particularly to modular cleaning rollers and cleaning tools. Background Technology

[0003] Existing cleaning tools include cleaning rollers. For example, Chinese patent document CN213910076U discloses a cleaning head and cleaning tool for use in cleaning tools. The cleaning head includes: a housing with a fixing groove; a roller disposed within the housing; a first fixing part disposed at one end of the roller, including a fixing block that cooperates with the fixing groove to fix one end of the roller to the housing; an elastic locking device disposed on the housing or the first fixing part, including a locking tongue; and a locking groove disposed on the first fixing part or the housing, which cooperates with the locking tongue to lock the roller. One end of the roller is locked to the housing through the cooperation of the locking tongue and the locking groove; and the elastic device makes it easier to remove or install the roller.

[0004] Because the cleaning roller is fitted onto a motor on one side wall of the cleaning head and driven by the motor shaft, and the other end is snapped onto the other side wall of the cleaning head via a spring button, the inner wall of the roller bracket on the cleaning roller and the outer wall of the bearing on the motor mounting base are interference-fitted to better ensure that the cleaning roller does not wobble and maintains balance during use. However, due to the wear of moving parts during operation, noise increases, necessitating the replacement of easily worn parts. Therefore, the existing cleaning roller structure is complex and difficult to disassemble after assembly, leading to the need for complete replacement of the cleaning roller. This increases user costs, and the need for complete scrapping after installation due to defects further increases production costs, thus hindering energy conservation and emission reduction. Summary of the Invention

[0005] The main technical problem solved by this invention is to provide a prefabricated cleaning roller and cleaning tool. The prefabricated cleaning roller can avoid wear and tear and can only be replaced as a whole, reducing the cost of use. At the same time, it can also avoid installation jamming due to difficulty in alignment during installation, reducing the difficulty of installation.

[0006] To solve the above-mentioned technical problems, the present invention provides an assembled cleaning roller, including a roller bracket with roller sponge, the roller bracket including a roller bracket body with a first installation space axially provided at one end, the roller bracket body is provided with a mounting seat or mounting frame, and a first installation space for installing a drive mechanism and a second installation space for a telescopic transmission mechanism are respectively provided on both sides of the mounting seat or mounting frame axially.

[0007] The first installation space is provided with an installation guide structure. The installation guide structure has a first cavity and a second cavity from the end inward. The diameter of the first cavity is larger than the diameter of the second cavity. A third cavity with a gradually decreasing diameter is provided between the first cavity and the second cavity. The drive mechanism is connected to the mounting base or mounting frame through a coupling structure. Multiple non-circular fixing holes are evenly distributed on the opposite side of the coupling structure along the circumferential direction to fix the telescopic transmission mechanism.

[0008] The second installation space is equipped with a detachable telescopic transmission mechanism, which includes a shaft core fixing seat and a shaft core passing through the shaft core fixing seat, as well as a shaft core sleeve with one end of the shaft core fixed to the shaft core fixing seat. An elastic component is provided between the shaft core sleeve and the shaft core fixing seat to allow the shaft core to extend outward. A limiting structure is provided between the shaft core and the shaft core fixing seat. A first bearing is provided at the end of the shaft core extending out of the shaft core fixing seat, and a key cover is provided on the outer ring of the first bearing.

[0009] In one or more alternative embodiments, the elastic component includes a telescopic spring that is sleeved on the shaft between the shaft core fixing seat and the shaft core sleeve, causing the shaft core to tend to move in an outward extension direction.

[0010] In one or more alternative embodiments, the end of the button cover is provided with an anti-rotation structure to prevent rotation.

[0011] In one or more alternative embodiments, the anti-rotation structure includes at least one plane on its axial side.

[0012] In one or more alternative embodiments, the telescopic transmission mechanism further includes a bearing fixing frame and a bearing pressure block sleeved on the shaft core and located on both sides of the first bearing, and the shaft core is provided with a through hole in the axial direction.

[0013] In one or more alternative embodiments, the shaft core fixing seat is provided axially with a first guide groove that engages with a guide strip provided on the surface of the shaft core.

[0014] In one or more alternative embodiments, the main body of the roller support is provided with a mounting base, and the drive mechanism is connected to the mounting base via a coupling structure.

[0015] In one or more alternative embodiments, a fourth cavity is formed on the other side of the second cavity by a coupling structure, the fourth cavity accommodating the telescopic transmission mechanism.

[0016] In one or more alternative embodiments, the third cavity wall forms an annular guide ramp.

[0017] In one or more alternative embodiments, the annular guide ramp is tilted at an angle of 5-15 degrees.

[0018] In one or more alternative embodiments, the coupling structure has an axially penetrating first through hole on its axial end face, at least one limiting groove around the first through hole, and a guide slope on the end face between each limiting groove.

[0019] In one or more alternative embodiments, when there are two or more limiting grooves, the limiting grooves are evenly distributed along the circumferential direction.

[0020] In one or more alternative embodiments, the number of limiting slots is three or four.

[0021] In one or more alternative embodiments, the roller support body is provided with a mounting bracket and a second mounting space formed by the mounting bracket and the other end of the roller support body. The first mounting space is provided with an annular mounting slope that forms an interference fit with the outer periphery of the second bearing.

[0022] In one or more alternative embodiments, the annular mounting ramp is tilted at an angle of 5-15 degrees.

[0023] In one or more alternative embodiments, the roller support body is provided with a second limiting step in the first installation space and the second installation space, respectively.

[0024] In one or more optional embodiments, the mounting bracket has a first through hole with an axially penetrating axial end face, at least one limiting groove is provided around the first through hole, and a guide slope is provided on the end face between each limiting groove; the mounting bracket has a fixed seat on the side near the second mounting space, the fixed seat has a third mounting space connecting the first through hole and the second mounting space, a clearance is provided between the fixed seat and the roller bracket body, and multiple fixing holes are provided on the outside of the fixed seat.

[0025] In one or more alternative embodiments, when there are two or more limiting grooves, the limiting grooves are evenly distributed along the circumferential direction.

[0026] In one or more alternative embodiments, the number of limiting slots is three or four.

[0027] In one or more alternative embodiments, the mounting bracket is further provided with a guide structure, the guide structure including a guide ramp on the end face of the mounting bracket between two adjacent limiting slots.

[0028] In one or more alternative embodiments, when there are two guide ramps on the mounting bracket end face between two adjacent limiting slots, the two guide ramps are inclined in opposite directions.

[0029] In one or more alternative embodiments, the third mounting space includes a cylindrical through hole, and a limiting step is formed between the cylindrical through hole and the first through hole.

[0030] In one or more alternative embodiments, the roller support body is provided with a second guide groove in the clearance space.

[0031] In one or more alternative embodiments, when there are two or more second guide grooves, the second guide grooves are evenly spaced.

[0032] In a second aspect, the present invention also provides a cleaning tool, including a cleaning head having an assembled cleaning roller having the assembled cleaning roller as described in the first aspect.

[0033] In one or more alternative embodiments, the cleaning tool further includes a universal joint connecting the drive mechanism and the cleaning head, and a third bearing that mates with the inner wall of the second cavity is provided between the universal joint and the roller support. The outer ring of the third bearing is provided with an annular guide slope that is consistent with the annular guide slope and can form an interference fit after being installed in place.

[0034] This invention relates to a prefabricated cleaning roller and cleaning tool. The prefabricated cleaning roller includes a roller bracket with a roller sponge, and the roller bracket includes a mounting base. The key feature is that a first mounting space for mounting a drive mechanism and a second mounting space for mounting a telescopic shaft are respectively provided on both sides of the mounting base along the axial direction. The first mounting space has an installation guide structure and is equipped with a detachable telescopic transmission mechanism. The drive mechanism is connected to the mounting base via a coupling structure. During installation, no interference fit occurs when reaching the annular mounting slope, and under the action of the annular mounting slope, there is a large allowance for movement and installation space. Slight deviations will not cause jamming, thus reducing installation difficulty. Furthermore, the prefabricated structure means that when the telescopic transmission mechanism wears out, only the telescopic transmission mechanism needs to be replaced, reducing operating costs and promoting energy conservation and environmental protection. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the description only show some embodiments of the present invention, and therefore should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic cross-sectional view along the axial direction of an embodiment of the cleaning roller.

[0037] Figure 2 This is an exploded view of the structure of an embodiment of the cleaning roller.

[0038] Figure 3 This is a cross-sectional view of an embodiment of the telescopic transmission mechanism along the axial direction.

[0039] Figure 4 This is a cross-sectional three-dimensional structural diagram along the axial direction of an embodiment of the telescopic transmission mechanism.

[0040] Figure 5 This is a cross-sectional perspective view of a prefabricated cleaning roller embodiment along the axial direction.

[0041] Figure 6 This is a schematic diagram of an embodiment of the roller support.

[0042] Figure 7 This is a schematic diagram of the sectional view of the roller support along the axial direction.

[0043] Figure 8 This is a schematic diagram of the roller support structure from another perspective along the axial direction.

[0044] Figure 9 This is a schematic diagram of the cross-sectional view along the axial direction of the second embodiment of the roller support.

[0045] Figure 10 This is a schematic diagram of the axial cross-section of the assembled cleaning roller and cleaning head after installation.

[0046] Figure label:

[0047] 1. Roller support; 1A. First cavity; 1B. Second cavity; 1C. Third cavity; 2. Roller sponge; 2A. Drive motor; 2B. Second bearing; 3. Mounting seat; 3A. Universal joint; 4. Shaft sleeve; 5. Shaft fixing seat; 51. Guide bar; 6. Shaft; 61. Limiting structure; 62. First guide groove; 7. Elastic component; 8. First bearing; 9. Bearing fixing bracket; 10. Key cover; 11. Bearing pressure block; 12. Annular guide slope; 13. Fourth cavity; 110. Limiting groove; 111. Guide slope; 114. First through hole; 116. Fixing hole.

[0048] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0049] The claims of the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of the present invention.

[0050] It should be understood that, in the description of the embodiments of the present invention, all directional indicating terms, such as "up," "down," "left," "right," "front," and "back," indicate the orientation or positional relationship based on the orientation and positional relationship shown in the accompanying drawings or the orientation or positional relationship commonly used when the product is in use. These terms are merely for the purpose of simplifying the description of the present invention and do not explicitly or implicitly suggest that the device, element, or component referred to must have a specific orientation or specific orientational structure, and should not be construed as a limitation of the present invention. They are only used to explain the relative positional relationships and movements between the components shown in the accompanying drawings. When this specific orientation changes, the directional indication may also change accordingly.

[0051] Furthermore, in this invention, ordinal numbers such as "first" and "second" are used for distinguishing purposes only and should not be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, the features referred to as "first" and "second" may explicitly or implicitly include at least one of those technical features. In the description of this invention, "a plurality of" means at least two, i.e., two or more, unless otherwise explicitly defined; "at least one" means one or more.

[0052] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-in" should be interpreted broadly. For example, they can refer to a relatively fixed positional relationship between components, or a physically fixed connection between components; they can be detachable connections or integral structures; they can be mechanical connections or electrical signal connections; they can be direct connections or indirect connections through intermediate media or components; they can refer to the internal communication of two elements or the interaction between two elements. Unless otherwise explicitly limited in the specification, other interpretations will not achieve the corresponding functions or effects. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0053] If the controllers or control circuits involved in this invention are conventional control technologies or units for those skilled in the art, such as the control circuits of the controllers, they can be implemented by those skilled in the art using existing methods, such as simple programming. Regarding software or programs that work with hardware to achieve control results, unless the description provides a detailed explanation of the control process of the software or programs involved, this pertains to the use of existing technology or conventional techniques for those skilled in the art. The power supply also employs existing technology in the art. Furthermore, since the main inventive aspect of this invention lies in the improvement of the mechanical device, this invention will not provide a detailed explanation of the specific circuit control relationships and circuit connections.

[0054] This invention discloses many different embodiments or examples for implementing different structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described herein. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0055] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0056] like Figures 1-4 As shown, the present invention provides an embodiment of an assembled cleaning roller.

[0057] Example 1 of the roller support.

[0058] The assembled cleaning roller includes a roller bracket 1 with a roller sponge 2, and a mounting base 3. The mounting base has a first mounting space for mounting a drive mechanism and a second mounting space for mounting a telescopic shaft on both sides. The first mounting space has a mounting guide structure and a detachable telescopic transmission mechanism. The drive mechanism is connected to the mounting base via a coupling structure. Specifically, the telescopic transmission mechanism includes a shaft core fixing base 5 and a shaft core 6 penetrating the shaft core fixing base, and a shaft core sleeve 4 with one end of the shaft core fixed to the shaft core fixing base 5. An elastic component 7 is provided between the shaft core sleeve 4 and the shaft core fixing base 5 to allow the shaft core 6 to extend outward. A limiting structure 61 is provided between the shaft core 6 and the shaft core fixing base 5. A first bearing 8 is provided at the end of the shaft core 6 extending out of the shaft core fixing base 5, and a key cover 10 is provided on the outer ring of the first bearing.

[0059] The elastic component 7 includes a telescopic spring, which is sleeved on the shaft core 6 between the shaft core fixing seat 5 and the shaft core sleeve 4, causing the shaft core to tend to move in the outward extension direction. The end of the key cover is provided with an anti-rotation structure to prevent rotation. This anti-rotation structure ensures that when the roller support rotates, there is no relative rotation between the key cover and the roller support, i.e., the anti-rotation structure does not rotate. The anti-rotation structure includes at least one plane on its axial side.

[0060] As needed, the telescopic transmission mechanism further includes a bearing fixing bracket 9 and a bearing pressure block 11, which are sleeved on the shaft core and located on both sides of the first bearing, respectively, so as to clamp and fix both sides of the first bearing. The shaft core has a through hole in the axial direction, which can reduce the mass of the shaft core and reduce unnecessary power loss during operation.

[0061] The shaft core fixing seat 5 is provided with a guide strip 51 along the axial direction, which cooperates with the first guide groove 62 provided on the surface of the shaft core. By cooperating with the first guide groove and the guide strip, it can be ensured that there is no relative rotation between the shaft core and the shaft core fixing seat during operation, and the friction between the shaft core and the shaft core fixing seat is reduced during the assembly process.

[0062] Since the interior of the mounting cavity cannot be observed during assembly, blind assembly is required to avoid jamming due to small clearances and potential deviations during installation, thus improving installation efficiency. Therefore, a guide structure is provided within the mounting cavity. This guide structure has a first cavity 1A and a second cavity 1B extending inwards from the end, with the diameter of the first cavity being larger than that of the second cavity. A third cavity 1C with a gradually decreasing diameter is provided between the first and second cavities, and the sidewall of this third cavity forms an annular guide ramp 12. The angle of inclination of the annular guide ramp is 5-15 degrees.

[0063] When the telescopic transmission mechanism wears out, only the telescopic transmission mechanism needs to be replaced, instead of replacing the entire cleaning roller. This reduces operating costs and saves energy.

[0064] Since the inside of the roller bracket cannot be observed during installation, blind installation is required to avoid delays in installation time due to misalignment.

[0065] like Figure 6-8 As shown, the installation guide structure has a first cavity and a second cavity from the end inward, wherein the diameter of the first cavity is larger than the diameter of the second cavity.

[0066] The coupling structure has a first through hole 114 axially penetrating the axial end face, and at least one limiting groove 110 around the first through hole. A guide slope 111 is provided on the end face between each limiting groove, which improves installation efficiency. The limiting grooves are evenly distributed along the circumferential direction. The number of limiting grooves is three or four. Multiple non-through fixing holes 116 are evenly distributed along the circumferential direction on the opposite side of the coupling structure for fixing 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 coupling structure, which accommodates the telescopic transmission mechanism.

[0067] Example 2 of the roller support.

[0068] like Figure 9 As shown, the present invention provides another embodiment of a roller support.

[0069] The roller support includes a roller support body with a first mounting space axially provided at one end. The roller support body is provided with a mounting bracket and a second mounting space formed by the mounting bracket and the other end of the roller support body. The first mounting space is provided with an annular mounting slope that forms an interference fit with the outer periphery of the second bearing.

[0070] Specifically, the annular mounting ramp has an inclination angle of 5-15 degrees. The mounting bracket has a first through hole axially penetrating its axial end face, and at least one limiting groove is provided around the first through hole. When there are two or more limiting grooves, each limiting groove is evenly distributed around the first through hole. Ideally, the number of limiting grooves can be three or four.

[0071] The mounting bracket also includes a guide structure. The guide structure includes guide ramps on the end face of the mounting bracket between two adjacent limiting slots. When there are two guide ramps on the end face of the mounting bracket between two adjacent limiting slots, the two guide ramps are inclined in opposite directions.

[0072] As needed, the mounting bracket is provided with a fixing seat on the side near the second mounting space. This fixing seat has a third mounting space connecting the first through hole and the second mounting space. A clearance gap is provided between the fixing seat and the main body of the roller support. Multiple fixing holes are provided on the outside of the fixing seat. The third mounting space includes a cylindrical through hole, which forms a limiting step with the first through hole.

[0073] The main body of the roller support is provided with a second guide groove in the clearance space. When there are two or more second guide grooves, the second guide grooves are evenly spaced.

[0074] During installation, no interference fit occurs when the annular mounting ramp is reached, and the annular mounting ramp has a certain guiding function. There is a large amount of play and installation space before it is fully installed. Even if there is a slight deviation between the roller bracket and the second bearing during the installation process, it will not cause jamming, thus reducing the difficulty of installation.

[0075] The roller support includes a roller support body with a first installation space axially provided at one end. The roller support body is provided with an installation frame and a second installation space formed by the installation frame and the other end of the roller support body. The roller support body is provided with a second limiting step in the first installation space and the second installation space respectively.

[0076] This embodiment does not require a third installation space compared to the first embodiment. Its installation process is basically the same as the above embodiments and will not be described again.

[0077] Before the interference fit occurs on the annular mounting ramp during the installation process, there is a large amount of room for movement and installation space under the action of the annular mounting ramp. Even if there is a slight deviation, it will not cause jamming, thus reducing the difficulty of installation.

[0078] like Figure 1-10 As shown, the present invention also provides embodiments of cleaning tools.

[0079] Example 1 of cleaning tools.

[0080] The cleaning tool includes a cleaning head with an assembled cleaning roller. The assembled cleaning roller includes a roller bracket 1 with a roller sponge 2. The roller bracket has a mounting base. One side of the mounting base has an axially extending mounting cavity to the end of the roller bracket. The mounting base has a connecting shaft structure on one side of the mounting cavity, and the other side of the mounting base has an axially extending transmission mechanism.

[0081] Specifically, the telescopic transmission mechanism includes a shaft core fixing seat 5 and a shaft core 6 passing through the shaft core fixing seat, as well as a shaft core sleeve 4 with one end of the shaft core fixed to the shaft core fixing seat 5. An elastic component 7 is provided between the shaft core sleeve 4 and the shaft core fixing seat 5 to allow the shaft core 6 to extend outward. A limiting structure 61 is provided between the shaft core 6 and the shaft core fixing seat 5. A first bearing 8 is provided at the end of the shaft core 6 extending out of the shaft core fixing seat 5, and a key cover 10 is provided on the outer ring of the first bearing.

[0082] The elastic component 7 includes a telescopic spring, which is sleeved on the shaft core 6 between the shaft core fixing seat 5 and the shaft core sleeve 4, causing the shaft core to tend to move outward. The end of the button cover 10 is provided with an anti-rotation structure to prevent rotation. This anti-rotation structure ensures that when the roller support rotates, there is no relative rotation between the button cover 10 and the roller support 1, i.e., the anti-rotation structure does not rotate. The anti-rotation structure includes at least one plane on its axial side.

[0083] As needed, the telescopic transmission mechanism further includes a bearing fixing bracket 9 and a bearing pressure block 11, which are sleeved on the shaft core 6 and located on both sides of the first bearing 8, respectively, so as to clamp and fix both sides of the first bearing. The shaft core 6 has a through hole in the axial direction, which can reduce the mass of the shaft core and reduce unnecessary power loss during operation.

[0084] The shaft core fixing seat 5 is provided with a guide strip 51 along the axial direction, which cooperates with the first guide groove 62 provided on the surface of the shaft core 6. By cooperating with the first guide groove and the guide strip, it can be ensured that there is no relative rotation between the shaft core and the shaft core fixing seat during operation, and the friction between the shaft core and the shaft core fixing seat is reduced during the assembly process.

[0085] Since the interior of the mounting cavity cannot be observed during assembly, blind assembly is required to avoid jamming due to small clearances and potential deviations during installation, thus improving installation efficiency. Therefore, a guide structure is provided within the mounting cavity. This guide structure has a first cavity 1A and a second cavity 1B extending inwards from the end, with the diameter of the first cavity being larger than that of the second cavity. A third cavity 1C with a gradually decreasing diameter is provided between the first cavity 1A and the second cavity 1B, and the wall of this third cavity forms an annular guide ramp 12. The angle of inclination of the annular guide ramp is 5-15 degrees.

[0086] The interior of the mounting cavity cannot be observed, therefore blind installation is required to avoid prolonged installation time due to misalignment during installation. The coupling structure has a first through hole 114 axially penetrating the axial end face, and at least one limiting groove 110 around this first through hole. A guide slope 111 is provided on the end face between each limiting groove, which improves installation efficiency. The limiting grooves are evenly distributed along the circumference. The number of limiting grooves is three or four. Multiple non-through fixing holes 116 are evenly distributed along the circumference on the opposite side of the coupling structure for fixing the telescopic transmission mechanism. Inside the roller support 1, on the opposite side of the second cavity 1B, a fourth cavity 13 is formed by the coupling structure, which accommodates the telescopic transmission mechanism.

[0087] When the telescopic transmission mechanism wears out, only the transmission mechanism needs to be replaced, instead of the entire cleaning roller. This reduces operating costs and saves energy. Since the inside of the roller support cannot be observed during installation, blind installation is necessary to avoid misalignment during the initial setup, which could prolong installation time.

[0088] like Figure 6-8 As shown, the installation guide structure has a first cavity and a second cavity from the end inward, wherein the diameter of the first cavity is larger than the diameter of the second cavity.

[0089] The coupling structure has a first through hole 114 axially penetrating the axial end face, and at least one limiting groove 110 around the first through hole. A guide slope 111 is provided on the end face between each limiting groove, which improves installation efficiency. The limiting grooves are evenly distributed along the circumferential direction. The number of limiting grooves is three or four. Multiple non-through fixing holes 116 are evenly distributed along the circumferential direction on the opposite side of the coupling structure for fixing 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 coupling structure, which accommodates the telescopic transmission mechanism.

[0090] Example 2 of cleaning tools.

[0091] like Figure 9 As shown in this embodiment of the cleaning tool, another roller bracket embodiment is used.

[0092] The roller support includes a roller support body with a first mounting space axially provided at one end. The roller support body is provided with a mounting bracket and a second mounting space formed by the mounting bracket and the other end of the roller support body. The first mounting space is provided with an annular mounting slope that forms an interference fit with the outer periphery of the second bearing.

[0093] Specifically, the annular mounting ramp has an inclination angle of 5-15 degrees. The mounting bracket has a first through hole axially penetrating its axial end face, and at least one limiting groove is provided around the first through hole. When there are two or more limiting grooves, each limiting groove is evenly distributed around the first through hole. Ideally, the number of limiting grooves can be three or four.

[0094] The mounting bracket also includes a guide structure. The guide structure includes guide ramps on the end face of the mounting bracket between two adjacent limiting slots. When there are two guide ramps on the end face of the mounting bracket between two adjacent limiting slots, the two guide ramps are inclined in opposite directions.

[0095] As needed, the mounting bracket is provided with a fixing seat on the side near the second mounting space. This fixing seat has a third mounting space connecting the first through hole and the second mounting space. A clearance gap is provided between the fixing seat and the main body of the roller support. Multiple fixing holes are provided on the outside of the fixing seat. The third mounting space includes a cylindrical through hole, which forms a limiting step with the first through hole.

[0096] The main body of the roller support is provided with a second guide groove in the clearance space. When there are two or more second guide grooves, the second guide grooves are evenly spaced.

[0097] During installation, no interference fit occurs when the annular mounting ramp is reached, and the annular mounting ramp has a certain guiding function. There is a large amount of play and installation space before it is fully installed. Even if there is a slight deviation between the roller bracket and the second bearing during the installation process, it will not cause jamming, thus reducing the difficulty of installation.

[0098] The roller support includes a roller support body with a first installation space axially provided at one end. The roller support body is provided with an installation frame and a second installation space formed by the installation frame and the other end of the roller support body. The roller support body is provided with a second limiting step in the first installation space and the second installation space respectively.

[0099] This embodiment does not require a third installation space compared to the first embodiment. Its installation process is basically the same as the above embodiments and will not be described again.

[0100] Before the interference fit occurs on the annular mounting ramp during the installation process, there is a large amount of room for movement and installation space under the action of the annular mounting ramp. Even if there is a slight deviation, it will not cause jamming, thus reducing the difficulty of installation.

[0101] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A prefabricated cleaning roller, comprising a roller support with a roller sponge, characterized in that, The roller support includes a roller support body with a first mounting space axially provided at one end. The roller support body is provided with a mounting seat or mounting frame. A first mounting space for mounting a drive mechanism and a second mounting space for telescopic transmission mechanism are respectively provided on both sides of the mounting seat or mounting frame. The first installation space is provided with an installation guide structure. The installation guide structure has a first cavity and a second cavity from the end inward. The diameter of the first cavity is larger than the diameter of the second cavity. A third cavity with a gradually decreasing diameter is provided between the first cavity and the second cavity. The drive mechanism is connected to the mounting base or mounting frame through a coupling structure. Multiple non-circular fixing holes are evenly distributed on the opposite side of the coupling structure along the circumferential direction to fix the telescopic transmission mechanism. The second installation space is equipped with a detachable telescopic transmission mechanism, which includes a shaft core fixing seat and a shaft core passing through the shaft core fixing seat, as well as a shaft core sleeve with one end of the shaft core fixed to the shaft core fixing seat. An elastic component is provided between the shaft core sleeve and the shaft core fixing seat to allow the shaft core to extend outward. A limiting structure is provided between the shaft core and the shaft core fixing seat. A first bearing is provided at the end of the shaft core extending out of the shaft core fixing seat, and a key cover is provided on the outer ring of the first bearing.

2. The assembled cleaning roller as described in claim 1, characterized in that, The elastic component includes a telescopic spring, which is sleeved on the shaft between the shaft core fixing seat and the shaft core sleeve, causing the shaft core to tend to move in the outward extension direction; Preferably, the end of the button cover is provided with an anti-rotation structure to prevent rotation; Preferably, the anti-rotation structure includes at least one plane on its axial side; Preferably, the telescopic transmission mechanism further includes a bearing fixing frame and a bearing pressure block sleeved on the shaft core and located on both sides of the first bearing, and the shaft core is provided with a through hole in the axial direction; Preferably, the shaft core fixing seat is provided with a first guide groove along the axial direction that cooperates with the guide strip provided on the surface of the shaft core.

3. The assembled cleaning roller as described in any one of claims 1-2, characterized in that, The main body of the roller support is equipped with a mounting base, and the drive mechanism is connected to the mounting base through a coupling structure; Preferably, on the other side of the second cavity, a fourth cavity is formed by a coupling structure, and the fourth cavity accommodates the telescopic transmission mechanism. Preferably, the wall of the third cavity forms an annular guiding slope; Preferably, the angle of inclination of the annular guide ramp is 5-15 degrees.

4. The assembled cleaning roller as described in claim 3, characterized in that, The coupling structure has an axially penetrating first through hole on the axial end face, at least one limiting groove around the first through hole, and a guide slope on the end face between each limiting groove. Preferably, when there are two or more limiting grooves, the limiting grooves are evenly distributed along the circumferential direction; Preferably, the number of limiting grooves is three or four.

5. The assembled cleaning roller as described in any one of claims 3, characterized in that, The main body of the roller support is provided with a mounting bracket and a second mounting space formed by the mounting bracket and the other end of the roller support body. The first mounting space is provided with an annular mounting slope that forms an interference fit with the outer periphery of the second bearing.

6. The assembled cleaning roller as described in claim 5, characterized in that, The angle of inclination of the annular mounting ramp is 5-15 degrees.

7. The assembled cleaning roller as described in claim 5, characterized in that, The main body of the roller support is provided with a second limiting step in both the first and second installation spaces.

8. The assembled cleaning roller as described in claim 5, characterized in that, The mounting bracket has a first through hole axially through the axial end face, at least one limiting groove around the first through hole, and a guide slope between the end faces of each limiting groove; the mounting bracket has a fixed seat on the side near the second mounting space, the fixed seat has a third mounting space connecting the first through hole and the second mounting space, a clearance gap is provided between the fixed seat and the main body of the roller bracket, and multiple fixing holes are provided on the outside of the fixed seat. Preferably, when there are two or more limiting grooves, the limiting grooves are evenly distributed along the circumferential direction; Preferably, the number of limiting grooves is three or four.

9. The assembled cleaning roller as described in claim 8, characterized in that, The mounting bracket is also provided with a guide structure, which includes a guide ramp on the end face of the mounting bracket between two adjacent limiting slots; Preferably, when there are two guide ramps on the end face of the mounting bracket between two adjacent limiting grooves, the two guide ramps are inclined in opposite directions; Preferably, the third installation space includes a cylindrical through hole, and a limiting step is formed between the cylindrical through hole and the first through hole; Preferably, the main body of the roller support is provided with a second guide groove in the clearance space; Preferably, when there are two or more second guide grooves, the second guide grooves are evenly spaced.

10. A cleaning tool, comprising a cleaning head, the cleaning head having an assembled cleaning roller, characterized in that, The assembled cleaning roller has the assembled cleaning roller as described in any one of claims 1-6; Preferably, the cleaning tool further includes a universal joint connecting the drive mechanism and the cleaning head, and a third bearing that mates with the inner wall of the second cavity is provided between the universal joint and the roller support. The outer ring of the third bearing is provided with an annular guide slope that is consistent with the annular guide slope and can form an interference fit after being installed in place.

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