Quick detachable end support assembly and cleaning device

Abstract

An easy-to-disassemble end support assembly and a cleaning device, the easy-to-disassemble end support assembly comprising a first connecting part and a second connecting part arranged at two ends of a cylindrical shell, and a driving mechanism encapsulated in the shell; the first connecting part comprising a fixing seat and a first button; the second connecting part comprising a connecting seat and a second button; the driving mechanism being electrically connected with the connecting part inside the first button; one end of the fixing seat away from the first button being clamped with one end of the shell; one end of the connecting seat away from the second button extending into the other end of the shell and being fixedly connected with an output end of the driving mechanism; the first button and the second button being pressed into the fixing seat and the connecting seat respectively when an external force is applied and being popped out and reset after the external force disappears; the second connecting part being synchronously rotated under the driving of the output end of the driving mechanism and being capable of driving a cleaning roller to be synchronously rotated. The cleaning device comprises a shell, a driving mechanism arranged in the shell, a cleaning roller sleeved outside the shell, and a U-shaped mounting rack, and both ends of the shell are provided with the easy-to-disassemble end support assembly.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 2022112960942, entitled "An Easily Disassembled End Support Assembly and Cleaning Device", filed on October 21, 2022, the contents of which are incorporated herein by reference. Technical Field

[0002] This invention belongs to the field of cleaning technology, specifically relating to an easily detachable end support assembly and a cleaning device. Background Technology

[0003] Chinese patent CN214590884U discloses a motor assembly and a sweeping robot. The motor assembly includes a housing, a motor, a gearbox, a first end cover, and a second end cover. The motor and gearbox are housed within the housing. The motor shaft reduces the high-speed, low-torque rotation via the gearbox, causing the output shaft to output low-speed, high-torque motion to drive the roller for cleaning. The first and second end covers are fixedly connected to both ends of the housing by multiple screws. Chinese patent CN213910076U discloses a cleaning head and a cleaning tool. The cleaning head includes a housing, a roller, a first fixing part, and an elastic locking device. One end of the roller is hinged to the housing, and the other end is locked to the housing by a locking tongue and a locking groove. The elastic device makes it easier to remove or install the roller.

[0004] Typically, the cleaning roller installed in a floor cleaner employing water-dust circulation technology includes an inner cleaning roller made of a rigid material and an outer cleaning roller made of a soft material that covers the inner layer and is capable of absorbing water. The cleaning rollers described in the aforementioned prior art are complete components composed of an inner cleaning roller and an outer cleaning roller; the coupling between the related drive unit and the cleaning roller usually refers only to the coupling between the drive unit and the inner cleaning roller.

[0005] The existing technology described above requires tools to remove and reassemble screws when inspecting or replacing internal components of the motor assembly or cleaning head roller. For example, the connector needs to be removed from one side wall of the cleaning head beforehand, and multiple fixing screws need to be removed during the process. Furthermore, separating the connector from the motor assembly also requires removing the hinge pin between them or directly removing the seal near the connector end of the aluminum cylinder covering the surface of the motor assembly. Disassembly and assembly are inconvenient, and complete separation of the roller assembly, motor assembly, and cleaning head cannot be achieved through simple operations. Summary of the Invention

[0006] The purpose of this invention is to provide an easily detachable end support assembly and a cleaning device, which aims to overcome the above-mentioned shortcomings of the prior art.

[0007] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: In the first aspect, the present invention provides an easily detachable end support assembly, including a first connecting part and a second connecting part disposed at both ends of a cylindrical shell, and a driving mechanism is encapsulated inside the shell;

[0008] The first connecting part includes a fixing base and a first button;

[0009] The second connecting part includes a connecting base and a second button;

[0010] The drive mechanism is electrically connected to the power receiving part inside the first button. The end of the fixed seat away from the first button is snapped into one end of the housing. The end of the connecting seat away from the second button extends into the other end of the housing and is fixedly connected to the output end of the drive mechanism. When the first button and the second button are pressed by external force, they retract into the fixed seat and the connecting seat respectively, and pop out to reset after the external force disappears. The second connecting part rotates synchronously under the drive of the output end of the drive mechanism. When it rotates, it can drive the cleaning roller connected to it to rotate synchronously.

[0011] In one or more alternative embodiments,

[0012] The first connecting part also includes a first elastic body sandwiched between the fixed base and the first button;

[0013] The second connecting part also includes a second elastic body sandwiched between the connecting base and the second button.

[0014] In one or more alternative embodiments, the first connecting part, the housing, and the drive mechanism encapsulated within the housing are relatively fixed.

[0015] When the drive mechanism starts and the output end rotates, the drive mechanism body, the first connecting part, and the housing are all stationary, while the second connecting part is rotatably connected to one end of the housing.

[0016] In one or more alternative embodiments, the first button is a straight prism-shaped cylinder with a partition in the middle, and a plurality of claws are evenly spaced along the circumference of one end wall of the first button.

[0017] In one or more alternative embodiments, the end of the claw extending axially outward and away from the first button has a hook, which is an outwardly flipped barb.

[0018] In one or more alternative embodiments, the fixing base is cylindrical and has a blind groove at one end that mates with the first button. The bottom wall of the blind groove has a locking hole that corresponds to the hook head, and a wire passage hole is provided at the center of the bottom wall of the blind groove.

[0019] In one or more alternative embodiments, the end of the first button away from the claw is detachably connected to a power contact.

[0020] In one or more alternative embodiments, the power receiving part includes a first power receiving post and a second power receiving post. The wires of the drive mechanism inside the housing pass through the wire hole and enter the blind slot, thereby achieving electrical connection with the integrated power receiving part inside the first button.

[0021] In one or more alternative embodiments, the claws are provided with 3 to 6.

[0022] In one or more alternative embodiments, the first button is a straight quadrangular prism-shaped cylinder or a straight hexagonal prism-shaped cylinder.

[0023] In one or more alternative embodiments, the first button is a quadrangular prism-shaped cylinder with four claws, one of which is connected to the midpoint of each side wall end face.

[0024] In one or more alternative embodiments, the distance between the two radially symmetrical hooks is slightly greater than the distance between the two corresponding locking holes. They need to be squeezed inwards relative to each other before being inserted into the corresponding locking holes. During the insertion process, the claws will undergo elastic deformation. After insertion, the claws have a tendency to expand radially outwards, thereby causing the hooks to hook onto the bottom wall of the blind groove near the locking holes.

[0025] In one or more alternative embodiments, the two ends of the first elastic body are respectively pressed against the bottom wall of the partition and the blind groove, and the first elastic body is in a compressed state, so that the pawl tends to disengage from the locking hole.

[0026] In one or more alternative embodiments, the number of the claws is at least three.

[0027] In one or more alternative embodiments, the first button is a straight triangular prism, a straight pentagonal prism, or a straight hexagonal prism-shaped cylinder.

[0028] In one or more alternative embodiments, the outer side wall of the fixing seat is formed with a first annular stepped surface that abuts and engages with the end of the housing, and one end of the outer side wall of the fixing seat is provided with a second annular stepped surface that abuts with one end of the inner cylinder of the cleaning roller.

[0029] In one or more alternative embodiments, a plurality of protrusions are evenly spaced in the circumferential direction on the first annular step surface, and a groove corresponding to the number and size of the protrusions is provided at the end of the housing.

[0030] When the end of the housing abuts against the first annular step surface, each protrusion is precisely engaged in the corresponding groove, thereby achieving a locking connection between the fixed seat and the housing without relative rotation in the circumferential direction.

[0031] In one or more alternative embodiments, one side of the second annular stepped surface can be engaged and fixed with the inner ring of a bearing, while the outer ring of the bearing is engaged and fixed with the inner wall of one end of the cleaning roller, thereby realizing the rotational connection between the cleaning roller and the fixed seat.

[0032] In one or more alternative embodiments, the side wall of the first button is provided with a slot for engaging the first power contact post and the second power contact post. After the first power contact post and the second power contact post are engaged in the slot, one end is located inside the first button and is respectively connected to the elastic reset member.

[0033] In one or more alternative embodiments, the other ends of the first and second terminals extend out of the first button. When the first button is pressed into the fixed seat by an external force, the first and second terminals retract into the first button due to the squeezing of the inner wall of the blind groove of the fixed seat.

[0034] When the external force disappears, the first button pops out and resets due to the elastic force of the first elastic element, and the first and second terminals also reset due to the popping out of the elastic reset element.

[0035] In one or more alternative embodiments, the outer ends of the first connector post and the second connector post are arc-shaped surfaces.

[0036] In one or more alternative embodiments, the resilient reset element is a spring.

[0037] In one or more alternative embodiments, the slot is located at the end of the first button away from the claw, the slot is a U-shaped groove, and springs are respectively fitted on the first and second electrical terminals, and a button cover is snapped into the port of the first button.

[0038] In one or more alternative embodiments, a plurality of limiting blocks are provided on the inner sidewall of the button cover. The limiting blocks extend into the port of the first button and abut against the sidewalls of the first and second electrical terminals. The upper and lower ends of the spring abut against a limiting block.

[0039] In one or more alternative embodiments, the elastic reset element is a U-shaped spring.

[0040] In one or more alternative embodiments, a first power terminal and a second power terminal are fixed on the outer side walls of both ends of the U-shaped spring sheet opening side, and the U-shaped spring sheet is insulated from the first power terminal and the second power terminal.

[0041] In one or more alternative embodiments, the U-shaped spring is made of a rigid plastic with good elasticity;

[0042] The first and second terminals are made of conductive metal, and one end of each terminal, which extends into the first button, is electrically connected to the wires of the drive mechanism.

[0043] In one or more alternative embodiments, a fixing hole is provided at the center of the closed end of the U-shaped spring sheet, and a slot is opened at the end port of the first button away from the claw. A first key cover is snapped into the port of the first button, and a connecting post with a screw hole is fixed on the inner side wall of the first button. The U-shaped spring sheet is fixed to the connecting post by a screw passing through the fixing hole.

[0044] In one or more alternative embodiments, the second button is a cylindrical body with one open end and the other closed, and the open end is provided with hooks evenly spaced along the circumference. The end of the hook away from the second button is provided with a hook head. The connecting seat is a hollow, rotationally symmetrical body with teeth evenly spaced on the outer side wall. The teeth can be engaged with the connecting part with a locking groove on the inner side of one end of the inner cylinder of the cleaning roller. One end of the connecting seat is for the end of the second button connected with the hook to extend into and engage.

[0045] In one or more optional embodiments, the inner wall of the connecting seat is provided with an annular stepped surface, and the diameter of the circle formed by the outer edge of the hook head of each hook is larger than the inner diameter of the thinner cylindrical section on one side of the annular stepped surface, so that each hook head can hook the annular stepped surface after it extends out from the thin cylindrical section. An inner connecting column is coaxially fixed at the other end of the connecting seat.

[0046] One end of the second elastic body abuts against the closed end of the second button, and the other end abuts against the end of the inner connecting post located in the connecting seat. The other end of the inner connecting post is fixedly connected to the output end of the drive mechanism by bolts.

[0047] In one or more alternative embodiments, a roller limiting sleeve is threadedly connected to the outer wall of one end of the connector that connects to the second button. The roller limiting sleeve can effectively restrict the cleaning roller and prevent it from moving axially after being fitted onto the housing.

[0048] In one or more alternative embodiments, a motor fixing component is rotatably connected to the end of the connector away from the second button, and the motor fixing component is snapped and fixed to one end of the housing.

[0049] In one or more alternative embodiments, the motor mounting component is fitted with a silicone sealing ring, and the housing is snapped into the motor mounting component to compress the silicone sealing ring, thereby achieving a firm and tight fit between the housing and the motor mounting component; under a certain axial external force, the two can be separated.

[0050] In one or more alternative embodiments, a clearance shaft hole is provided at the radial center position of the motor fixing component. After the motor fixing component is snapped into the end of the housing, the inner connecting post, which is fixedly connected to the output end of the drive mechanism, passes through the clearance shaft hole, and a gap is left between the inner connecting post and the clearance shaft hole.

[0051] In one or more alternative embodiments, the motor mounting member has a stepped ring on the side closest to the housing after snapping, which can accommodate a shaft seal. The outer edge of the shaft seal abuts against the inner wall of the stepped ring, and a gap is left between the shaft seal and the inner connecting post.

[0052] In a second aspect, the present invention provides a cleaning device, characterized in that it includes a housing, a drive mechanism located inside the housing, a cleaning roller sleeved outside the housing, and a U-shaped mounting bracket. The two ends of the housing are provided with easily detachable end support components as described in any one of claims 1 to 35, and the mounting bracket has mounting holes on its two side arms that cooperate with the first button and the second button, respectively.

[0053] The mounting holes on the two arms of the mounting bracket are different in shape. The mounting hole that mates with the first button of the first connecting part is a polygonal hole, which prevents the first connecting part from rotating around its own central axis relative to the mounting bracket. The mounting hole on the other side is a round hole, in which the second button rotates. A bearing is installed in the round hole.

[0054] In one or more alternative embodiments, the bearing component is a ball bearing or a polytetrafluoroethylene bushing.

[0055] In one or more alternative embodiments, the drive mechanism includes a motor and a reducer rotatably connected to the output end of the motor, wherein the output end of the reducer is fixedly connected to the connecting seat of the easily detachable end support assembly.

[0056] Compared with the prior art, the technical effects and advantages of the present invention are as follows:

[0057] (1) The easy-to-disassemble end support assembly provided by the present invention has a first button and a second button that can be retracted into the fixed seat and the connecting seat respectively under external force. The first button and the second button can be reset after the external force disappears. Therefore, it can be easily installed into the mounting frame and is also easy to disassemble. Since the first connecting part and the second connecting part are only snapped with the two ends of the housing without screw fixation, when disassembling, press the first button and the second button first to make the two ends of the housing come out of the mounting frame, and then pull the first connecting part or the second connecting part directly to make it come out of the housing, thereby realizing the convenient separation of the cleaning roller and the motor assembly and improving the installation and maintenance efficiency.

[0058] (2) The first connecting part has a retractable first and second power terminals integrated on the fixed base, which is convenient for connecting the motor terminal inside the cylindrical shell and for connecting to the external power line. At the same time, the retractable first and second power terminals do not affect the retraction of the first button into the fixed base, and the structure is ingeniously designed. In addition, since there is no need to pass the power line through the end of the fixed base, the waterproof sealing of the first connecting part is naturally improved. Attached Figure Description

[0059] 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.

[0060] Figure 1 This is a schematic diagram of an easily detachable end support assembly installed at both ends of the housing, provided by the present invention.

[0061] Figure 2 for Figure 1 A cross-sectional view of the device shown along its long axis;

[0062] Figure 3 for Figure 1 Axonometric view of the first connecting part at the left end of the housing in the device shown;

[0063] Figure 4 for Figure 3 A cross-sectional view of the first connecting part shown;

[0064] Figure 5 for Figure 3 An exploded view of the first connecting part is shown below;

[0065] Figure 6 for Figure 3 The diagram shows an explosion when the first connecting part has a U-shaped spring clip.

[0066] Figure 7 for Figure 1 Axonometric view of the second connecting part at the right end of the housing in the device shown;

[0067] Figure 8 for Figure 7 A cross-sectional view of the second connecting part shown;

[0068] Figure 9 for Figure 7 The right view of the second connecting part shown;

[0069] Figure 10 for Figure 7 An exploded view of the second connection section is shown below;

[0070] Figure 11 A cross-sectional view of a cleaning device provided by the present invention;

[0071] Figure 12 for Figure 11 A schematic diagram of the cleaning roller and the engagement of one end with the second connecting part teeth;

[0072] Figure 13for Figure 11 A schematic diagram of the mounting bracket in the cleaning device shown.

[0073] The attached diagram lists the components represented by each number as follows:

[0074] 1. Housing; 2. Fixing base; 3. First button; 4. First elastic body; 5. Connecting base; 6. Second button; 7. Second elastic body; 8. Claw; 9. Locking hole; 10. Wire hole; 11. First power terminal; 12. Second power terminal; 13. Slot; 14. Elastic reset component; 15. Button cover; 16. Limiting block; 17. U-shaped spring; 18. Connecting post; 19. Claw tooth; 20. Inner connecting post; 21. Roller limiting sleeve; 22. Motor fixing component; 23. Silicone sealing ring; 24. Cleaning roller inner cylinder; 25. Mounting bracket; 26. Motor; 27. Reducer; 28. Shaft seal; 29. ​​Clearance shaft hole.

[0075] 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

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] like Figures 1 to 10As shown, the present invention provides an easily detachable end support assembly, which includes a first connecting portion and a second connecting portion disposed at both ends of a cylindrical housing 1. A driving mechanism is encapsulated inside the housing 1. The first connecting portion includes a fixing seat 2, a first button 3, and a first elastic body 4 sandwiched between the two. The second connecting portion includes a connecting seat 5, a second button 6, and a second elastic body 7 sandwiched between the two. The end of the fixing seat 2 away from the first button 3 is engaged with one end of the housing 1. The end of the connecting seat 5 away from the second button 6 extends into the other end of the housing 1 and is fixedly connected to the output end of the driving mechanism. When the first button 3 and the second button 6 are pressed by an external force, they retract into the fixing seat 2 and the connecting seat 5 respectively, and pop out to reset after the external force disappears. The first elastic body and the second elastic body are preferably both springs.

[0084] It should be noted that the first connecting part, the housing and the drive mechanism encapsulated inside the housing are relatively fixed. When the drive mechanism is started and the output end rotates, the drive mechanism body (except for the output end), the first connecting part and the housing are all stationary. The second connecting part rotates synchronously under the drive of the output end of the drive mechanism. That is, the second connecting part is actually rotatably connected to one end of the housing. When it rotates, it can drive the cleaning roller connected to it to rotate synchronously to achieve cleaning.

[0085] As a further improved implementation method, as needed, such as Figures 2 to 6 As shown, the first button 3 is a straight prismatic cylinder (preferably a square cylinder, i.e., a straight quadrangular prism) with a partition in the middle. Multiple claws 8 are evenly spaced along the circumference of one end wall of the first button 3. When the first button is a square cylinder, the number of claws is four. One claw is connected to the midpoint of each side wall end face. The claw 8 extends axially outwards and has a hook at the end furthest from the first button 3. Figures 4 to 6As shown, the hook head is an outwardly turned barb, and the fixing base 2 is cylindrical with a blind groove at one end that mates with the first button 3. The bottom wall of the blind groove has locking holes 9 corresponding to the hook heads. The distance between two radially symmetrical hook heads is slightly greater than the distance between the corresponding two locking holes, so they need to be pressed inwards relative to each other before being inserted into the corresponding locking holes. During insertion, the claws undergo elastic deformation, and after insertion, the claws tend to expand radially outwards, thus causing the hook head to hook onto the bottom wall of the blind groove near the locking hole. The two ends of the first elastic body are respectively connected to the... The partition and the bottom wall of the blind groove are pressed together, and the first elastic body is in a compressed state, so that the claw tends to disengage from the locking hole. However, since the hook is hooked on the wall of the locking hole, it cannot disengage. Therefore, the first button is stably connected to the fixed base without shaking. A wire hole 10 is provided at the center of the bottom wall of the blind groove. The end of the first button 3 away from the claw 8 is detachably connected to a power connection part. The wire of the drive mechanism (motor assembly) in the housing passes through the wire hole and enters the blind groove, and then connects with the integrated power connection part inside the first button.

[0086] As a further improved implementation, the number of grippers in the above embodiments can be flexibly selected as needed, typically at least three, and can be more if required; additionally, such as Figure 5 , Figure 6 As shown, the first button can be any other straight prism besides a square prism (square tube), including but not limited to a triangular prism, a pentagonal prism, or a hexagonal prism.

[0087] Based on the above embodiments, as a further improved implementation method, as needed, such as... Figure 1-3 and Figure 11 As shown, the outer wall of the fixing base 2 has a first annular stepped surface formed in the middle, which abuts and engages with the end of the housing 1. One end of the outer wall of the fixing base 2 has a second annular stepped surface that abuts with one end of the inner cylinder 24 of the cleaning roller. The first annular stepped surface has multiple protrusions evenly spaced circumferentially. The end of the housing has corresponding grooves matching the number and size of the protrusions. When the end of the housing abuts against the first annular stepped surface, each protrusion precisely engages with its corresponding groove, thus achieving a locking connection between the fixing base and the housing, preventing relative rotation in the circumferential direction. One side of the second annular stepped surface can be locked to the inner ring of a bearing (not shown in the figure) using a similar structure. The outer ring of the bearing is locked to the inner wall of one end of the cleaning roller, thus achieving a rotatable connection between the cleaning roller and the fixing base.

[0088] As a further improved implementation method, as needed, such as Figure 5As shown, the power receiving part includes a first power receiving post 11 and a second power receiving post 12. The side wall of the first button 3 is provided with a slot 13 for engaging the first power receiving post 11 and the second power receiving post 12. After the first power receiving post 11 and the second power receiving post 12 are engaged in the slot 13, one end is located inside the first button 3 and is connected to the elastic reset member 14 respectively. The other end of the first power receiving post 11 and the second power receiving post 12 extends out of the first button 3. When the first button 3 is pressed into the fixed seat 2 by an external force, the first power receiving post 11 and the second power receiving post 12 are retracted into the first button 3 due to the squeezing of the inner wall of the blind groove of the fixed seat. Therefore, the outer ends of the first and second power receiving posts are preferably arc-shaped surfaces. When the external force disappears, the first button 3 pops out and resets due to the elastic force of the first elastic member, and the first power receiving post 11 and the second power receiving post 12 will also pop out and reset due to the elastic reset member. In this embodiment, the elastic reset member 14 is a spring, the slot 13 is opened at the end port of the first button 3 away from the claw 8, the slot 13 is a U-shaped groove, the spring is respectively sleeved on the first power terminal 11 and the second power terminal 12, the button cover 15 is snapped into the port of the first button 3, the inner side wall of the button cover 15 is provided with a plurality of limiting blocks 16, the limiting blocks 16 extend into the port and abut against the side walls of the first power terminal 11 and the second power terminal 12, and the upper and lower ends of the spring abut against one of the limiting blocks 16.

[0089] As a further improved implementation method, as needed, such as Figure 6 As shown, the elastic reset member 14 is a U-shaped spring piece 17. The first electrical contact post 11 and the second electrical contact post 12 are fixed on the outer walls of both ends of the open side of the U-shaped spring piece 17. The U-shaped spring piece 17 is insulated from the first electrical contact post 11 and the second electrical contact post 12. The U-shaped spring piece can be made of hard plastic with good elasticity, while the first electrical contact post and the second electrical contact post are made of conductive metals such as copper and aluminum. One end of the spring piece 17 that extends into the first button is electrically connected to the wire of the drive mechanism. The center of the closed end of the U-shaped spring piece 17 is provided with a fixing hole. The slot 13 is opened at the port of the first button 3 away from the claw 8. The port of the first button 3 is fitted with a first key cover, and a connecting post 18 with a screw hole is fixed on the inner wall of the first button 3. The U-shaped spring piece 17 is fixed to the connecting post 18 by a screw passing through the fixing hole.

[0090] As a further improved implementation method, as needed, such as Figures 7 to 10 As shown, the second button 6 is a cylindrical body with one open end and the other closed, and the open end is provided with hooks evenly spaced circumferentially. The end of the hooks away from the second button 6 is provided with a hook head. The connecting seat 5 is a hollow, rotationally symmetrical body with evenly spaced locking teeth 19 on its outer side wall. Figure 12As shown, the locking tooth 19 can be engaged with the connecting part with the locking groove on the inner side of one end of the inner cylinder 24 of the cleaning roller. One end of the connecting seat 5 is for the end of the second button 6 connected to the claw to extend into and engage. The inner wall of the connecting seat is provided with an annular stepped surface. The diameter of the circle formed by the outer edge of the hook head of each claw is larger than the inner diameter of the thinner section of the annular stepped surface, so that each claw can hook the annular stepped surface after extending from the thinner section. The other end is coaxially fixed with an inner connecting post 20. One end of the second elastic body 7 abuts against the closed end of the second button 6, and the other end abuts against the end of the inner connecting post 20 located in the connecting seat 5. The other end of the inner connecting post 20 is fixedly connected to the output end of the drive mechanism by bolts.

[0091] As a further improved implementation, if necessary, a roller limiting sleeve 21 is threadedly connected to the outer wall of one end of the connecting seat 5 that connects to the second button 6. The roller limiting sleeve 21 can effectively restrict the cleaning roller and prevent it from moving axially after being fitted onto the housing.

[0092] Based on the above embodiments, as a further improved implementation, as needed, a motor fixing member 22 is rotatably connected to the end of the connecting seat 5 away from the second button 6. The motor fixing member 22 is snapped and fixed to one end of the housing 1. A silicone sealing ring 23 is provided on the outer sleeve of the motor fixing member 22. The housing 1 is snapped into the motor fixing member 22 and compresses the silicone sealing ring 23 to achieve a firm and tight fit between the housing 1 and the motor fixing member 22. Of course, under a certain axial external force, the two can also be separated.

[0093] A clearance shaft hole 29 is provided at the radial center position of the motor mounting component 22. After the motor mounting component 22 is snapped into the end of the housing 1, the inner connecting post 20, which is fixedly connected to the output end of the drive mechanism, passes through the clearance shaft hole 29. A gap is left between the inner connecting post 20 and the clearance shaft hole 29 to reduce the friction caused by the small radial runout of the output end of the drive mechanism on the motor mounting component 22, thus reducing unnecessary energy loss. A stepped ring is provided on the side of the motor mounting component 22 away from the end face of the housing 1 after snapping, which can accommodate the installation of the shaft seal 28. The outer edge of the shaft seal 28 abuts against the inner wall of the stepped ring. A gap is left between the shaft seal 28 and the inner connecting post 20 to reduce the friction caused by the small radial runout of the output end of the drive mechanism on the shaft seal 28, thus reducing unnecessary energy loss.

[0094] like Figures 11 to 13As shown, the present invention also provides a cleaning device, which includes a housing 1, a drive mechanism located within the housing 1, a cleaning roller sleeved outside the housing 1, and a U-shaped mounting bracket 25. The housing 1 has easily detachable end support assemblies as described above at both ends. Mounting holes for engaging the first button 3 and the second button 6 are respectively opened on the two side arms of the mounting bracket 25. It should be noted that the mounting holes on the two side arms of the mounting bracket 25 have different shapes. The mounting hole engaging the straight prism-shaped cylinder (first button) of the first connecting part is also a corresponding polygonal hole, which prevents the first connecting part from rotating relative to the mounting bracket around its own central axis. The mounting hole on the other side is a circular hole, and the second button rotates within the circular hole. To reduce friction, a bearing (ball bearing or PTFE bushing) can be considered within the circular hole.

[0095] Based on the above embodiments, as a further improved implementation, the drive mechanism includes a motor 26 and a reducer 27 rotatably connected to the output end of the motor 26, with the output end of the reducer 27 fixedly connected to the connecting seat 5. The reducer can convert the high-speed, low-torque output of the motor into a low-speed, high-torque output, thereby driving the cleaning roller to rotate outside the housing.

[0096] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An easily detachable end support assembly, characterized in that, It includes a first connecting part and a second connecting part located at both ends of a cylindrical shell, and a drive mechanism is encapsulated inside the shell; The first connecting part includes a fixing base and a first button; The second connecting part includes a connecting base and a second button; The drive mechanism is electrically connected to the power receiving part inside the first button. The end of the fixed seat away from the first button is snapped into one end of the housing. The end of the connecting seat away from the second button extends into the other end of the housing and is fixedly connected to the output end of the drive mechanism. When the first button and the second button are pressed by external force, they retract into the fixed seat and the connecting seat respectively, and pop out to reset after the external force disappears. The second connecting part rotates synchronously under the drive of the output end of the drive mechanism. When it rotates, it can drive the cleaning roller connected to it to rotate synchronously.

2. The easily detachable end support assembly as described in claim 1, characterized in that, The first connecting part also includes a first elastic body sandwiched between the fixed base and the first button; The second connecting part also includes a second elastic body sandwiched between the connecting base and the second button; Alternatively, the first connecting part, the housing, and the drive mechanism encapsulated within the housing are relatively fixed; when the drive mechanism is started and the output end rotates, the drive mechanism body, the first connecting part, and the housing are all stationary, while the second connecting part is rotatably connected to one end of the housing.

3. The easily detachable end support assembly as described in claim 1, characterized in that, The first button is a straight prism-shaped cylinder with a partition in the middle. Multiple claws are evenly spaced along the circumference of one end wall of the first button. Preferably, the end of the claw that extends axially outward and is far from the first button has a hook, and the hook is an outwardly turned barb shape; Preferably, the fixing base is cylindrical and has a blind groove at one end that mates with the first button. The bottom wall of the blind groove has a locking hole that corresponds to the hook head, and a wire passage hole is provided at the center of the bottom wall of the blind groove. Preferably, the end of the first button furthest from the claw is detachably connected to a power contact. Preferably, the power receiving part includes a first power receiving post and a second power receiving post. The wire of the drive mechanism inside the housing passes through the wire hole and enters the blind slot, thereby achieving electrical connection with the integrated power receiving part inside the first button.

4. The easily detachable end support assembly as described in claim 3, characterized in that, There are 3 to 6 chucks.

5. The easily detachable end support assembly as described in any one of claims 3-4, characterized in that, The first button is a straight quadrangular prism-shaped cylinder or a straight hexagonal prism-shaped cylinder; Preferably, the first button is a quadrangular prism-shaped cylinder with four claws, one of which is connected to the midpoint of each side wall end face.

6. The easily detachable end support assembly as described in any one of claims 3-4, characterized in that, The distance between the two radially symmetrical hooks is slightly greater than the distance between the two corresponding locking holes. They need to be squeezed inwards and then inserted into the corresponding locking holes. During the insertion process, the claws will undergo elastic deformation. After insertion, the claws have a tendency to expand radially outwards, so that the hooks hook onto the bottom wall of the blind groove near the locking hole.

7. The easily detachable end support assembly as described in any one of claims 3-4, characterized in that, The first elastic body is pressed against the bottom wall of the partition and the blind groove at both ends, and the first elastic body is in a compressed state, so that the pawl tends to disengage from the locking hole.

8. The easily detachable end support assembly as described in any one of claims 3-4, characterized in that, The number of claws must be at least three.

9. The easily detachable end support assembly as described in claim 3, characterized in that, The first button is a cylindrical body shaped like a straight triangular prism, a straight pentagonal prism, or a straight hexagonal prism.

10. The easily detachable end support assembly as described in claim 1, characterized in that, The outer side wall of the fixed seat is formed with a first annular stepped surface that abuts and engages with the end of the housing, and one end of the outer side wall of the fixed seat is provided with a second annular stepped surface that abuts with one end of the inner cylinder of the cleaning roller. Preferably, a plurality of protrusions are evenly spaced in the circumferential direction on the surface of the first annular step, and a groove matching the number and size of the protrusions is provided at the end of the housing. When the end of the housing abuts against the first annular stepped surface, each protrusion is precisely engaged in the corresponding groove, thereby achieving a snap-fit ​​between the fixed seat and the housing without relative rotation in the circumferential direction. Preferably, one side of the second annular step surface can be engaged and fixed with the inner ring of a bearing, while the outer ring of the bearing is engaged and fixed with the inner wall of one end of the cleaning roller, thereby realizing the rotational connection between the cleaning roller and the fixed seat.

11. The easily detachable end support assembly as described in claim 3, characterized in that, The first button has a slot on its side wall for engaging with the first and second power contacts. After the first and second power contacts are engaged with the slot, one end of each is located inside the first button and is connected to the elastic reset member. Preferably, the other ends of the first and second terminals extend out of the first button. When the first button is pressed into the fixed seat by an external force, the first and second terminals retract into the first button due to the squeezing of the inner wall of the blind groove of the fixed seat. When the external force disappears, the first button pops out and resets due to the elastic force of the first elastic element, and the first and second terminals also reset due to the popping out of the elastic reset element.

12. The easily detachable end support assembly as described in claim 11, characterized in that, The outer ends of the first and second connector posts are curved surfaces. Alternatively, the elastic reset element can be a spring.

13. The easily detachable end support assembly as described in claim 11, characterized in that, The slot is located at the end of the first button away from the claw. The slot is U-shaped. Springs are fitted on the first and second electrical terminals respectively. A button cover is attached to the port of the first button. Preferably, the inner sidewall of the button cover is provided with multiple limiting blocks, the limiting blocks extend into the port of the first button and abut against the sidewalls of the first and second electrical terminals, and the upper and lower ends of the spring abut against a limiting block.

14. The easily detachable end support assembly as described in claim 11, characterized in that, The elastic reset element is a U-shaped spring sheet; Preferably, the U-shaped spring sheet is characterized in that a first terminal post and a second terminal post are fixed on the outer walls of both ends of the U-shaped spring sheet opening side, and the U-shaped spring sheet is insulated from the first terminal post and the second terminal post. Preferably, the U-shaped spring is made of a rigid plastic with good elasticity; The first and second terminals are made of conductive metal, and one end of each terminal, which extends into the first button, is electrically connected to the wires of the drive mechanism. Preferably, the U-shaped spring sheet has a fixing hole at the center of the closed end, and the slot is opened at the end of the first button away from the claw. The first button is fitted with a first key cover at the port and a connecting post with a screw hole is fixed on the inner side wall of the first button. The U-shaped spring sheet is fixed to the connecting post by a screw passing through the fixing hole. Preferably, the second button is a cylindrical body with one end open and the other end closed, and the open end is provided with hooks evenly spaced along the circumference. The end of the hook away from the second button is provided with a hook head. The connecting seat is a hollow, rotationally symmetrical body with teeth evenly spaced on the outer side wall. The teeth can be engaged with the connecting part with the locking groove on the inner side of one end of the inner cylinder of the cleaning roller. One end of the connecting seat is for the end of the second button connected with the hook to extend into and engage. Preferably, the inner wall of the connecting seat is provided with an annular stepped surface, and the diameter of the circle formed by the outer edge of the hook head of each hook is larger than the inner diameter of the thinner cylindrical section on one side of the annular stepped surface, so that each hook head can hook the annular stepped surface after it extends out from the thinner cylindrical section. An inner connecting column is coaxially fixed at the other end of the connecting seat. One end of the second elastic body abuts against the closed end of the second button, and the other end abuts against the end of the inner connecting post located in the connecting seat. The other end of the inner connecting post is fixedly connected to the output end of the drive mechanism by bolts. Preferably, a roller limiting sleeve is threaded onto the outer wall of one end of the connector that connects to the second button. The roller limiting sleeve can effectively restrict the cleaning roller and prevent it from moving axially after it is fitted onto the housing. Preferably, a motor fixing component is rotatably connected to the end of the connector away from the second button, and the motor fixing component is snapped and fixed to one end of the housing.

15. The easily detachable end support assembly as described in claim 14, characterized in that, The motor mounting bracket is fitted with a silicone sealing ring. The housing is snapped into the motor mounting bracket and the silicone sealing ring is compressed to achieve a firm and tight fit between the housing and the motor mounting bracket. Under a certain axial external force, the two can be separated. Alternatively, a clearance shaft hole is provided at the radial center position of the motor fixing component. After the motor fixing component is snapped into the end of the housing, the inner connecting post, which is fixedly connected to the output end of the drive mechanism, passes through the clearance shaft hole, and a gap is left between the inner connecting post and the clearance shaft hole. Alternatively, a stepped ring is provided on the side of the motor mounting component closest to the housing after snapping, which can accommodate the installation of the shaft seal. The outer edge of the shaft seal abuts against the inner wall of the stepped ring, and a gap is left between the shaft seal and the inner connecting post.

16. A cleaning device, characterized in that, The device includes a housing, a drive mechanism located inside the housing, a cleaning roller sleeved outside the housing, and a U-shaped mounting bracket. The two ends of the housing are provided with easily detachable end support components as described in any one of claims 1 to 15, and the mounting bracket has mounting holes on both sides of the arm that cooperate with the first button and the second button, respectively. The mounting holes on the two arms of the mounting bracket are different in shape. The mounting hole that mates with the first button of the first connecting part is a polygonal hole, which prevents the first connecting part from rotating around its own central axis relative to the mounting bracket. The mounting hole on the other side is a round hole, in which the second button rotates. A bearing is installed in the round hole. Preferably, the bearing component is a ball bearing or a polytetrafluoroethylene bushing; Preferably, the drive mechanism includes a motor and a reducer rotatably connected to the output end of the motor, and the output end of the reducer is fixedly connected to the connecting seat of the easily detachable end support assembly.

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