A detachable electric drive device, cleaning machine and electric drive device maintenance method

Abstract

The application discloses a detachable electric driving device and a cleaning machine. The detachable electric driving device comprises an electric driving assembly, a hinged piece and an end knob assembly. The hinged piece is detachably electrically connected between one end of the hinged piece and an electric connection end of the electric driving assembly, and the other end of the hinged piece is used for being hinged with a motor fixing part arranged at one end of a cleaning head shell. The end knob assembly is coupled with a rotating output end of the electric driving assembly at an input end, used for driving a roller assembly of the cleaning machine to rotate at an output end, and rotationally connected with the other end of the cleaning head shell at a clamping end and has an active stroke along an axial direction of the electric driving assembly. The technical scheme of the application solves the problems that the existing cleaning machine driving motor is troublesome to disassemble and assemble during maintenance and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning equipment, in particular to a detachable electric driving device, a cleaning machine and a maintenance method of the electric driving device. BACKGROUND

[0002] In the prior art, an inner cylinder is arranged in the outer cylinder of the cleaning roller, and the motor in the inner cylinder is powered by the power line introduced by the end head hinged to the cleaning head at one end of the inner cylinder. Since the end head is hinged to the cleaning head, the end head cannot be detached together with the cleaning roller and separated from the cleaning head. At the same time, since the power line penetrates the end head, when the cleaning head is completely detached for maintenance of the driving motor, the power line needs to be cut off to completely separate from the cleaning head. After maintenance, the cut power line needs to be reconnected for reinstallation. The maintenance process is relatively troublesome in terms of disassembly and assembly. SUMMARY

[0003] The present application provides a detachable electric driving device, a cleaning machine and a maintenance method of the electric driving device, aiming to solve the problem of relatively troublesome disassembly and assembly in the maintenance process of the driving motor of the existing cleaning machine.

[0004] To solve the above problems, in a first aspect, the present application provides a detachable electric driving device installed between two opposite side walls of the cleaning head shell for driving the cleaning roller to rotate, which comprises:

[0005] An electric driving assembly comprising an electricity receiving end and a rotating output end, wherein the rotating output end has an output shaft driven to rotate by electricity;

[0006] A hinged part having one end detachably electrically connected to the electricity receiving end and the other end hinged to the motor fixing part of one side wall of the cleaning head shell;

[0007] An end knob assembly comprising an input end and a clamping end, wherein the input end is coupled to the output shaft, the outer edge of the input end is coupled to the cleaning roller and drives the cleaning roller to rotate, and the clamping end is clamped to the other side wall of the cleaning head shell and has an active stroke in the axial direction of the electric driving assembly;

[0008] During maintenance, the electric driving assembly can be quickly separated from the hinged part at the electricity receiving end.

[0009] In one or some optional embodiments, the hinged part comprises:

[0010] A sleeve part sleeved with the electricity receiving end of the electric driving assembly;

[0011] A plug-in part arranged in the middle of the sleeve part of the hinged part and matched with the electric connector arranged on the electricity receiving end;

[0012] A hinged part arranged at the back of the sleeve part for hinging to the motor fixing part.

[0013] In one or some optional embodiments, the detachable electric drive device further comprises a hinged end sealing plug installed at the power connection end, and the electric connector is arranged in the middle of the hinged end sealing plug.

[0014] In one or some optional embodiments, the hinged end sealing plug comprises a sealing plug sealing part and a sealing plug sleeve part, the sealing plug sealing part is sealingly connected with the inner wall of the shell of the electric drive assembly, and the sealing plug sleeve part is sleeved with the sleeve part.

[0015] In one or some optional embodiments, the electric drive assembly further comprises a heat-conducting protection cylinder, a drive motor and a speed reducer assembly arranged in the heat-conducting protection cylinder, and the drive motor, the speed reducer assembly and the output shaft are sequentially coupled in the heat-conducting protection cylinder.

[0016] In one or some optional embodiments, the inner wall of the heat-conducting protection cylinder is provided with an output end sealing plug at a corresponding position on the outer periphery of the output shaft.

[0017] In one or some optional embodiments, the end knob assembly comprises:

[0018] an end knob mounting seat, one end of which is sleeved on the outer periphery of the output shaft and detachably connected with the output end sealing plug, and the other end is clamped on the opening at the end of the heat-conducting protection cylinder;

[0019] an end knob body, the middle part of which is provided with a through hole, comprising an output shaft sleeve end and a receiving end, the sleeve end is sleeved and mounted at the rotating end of the output shaft, and the receiving end has a mounting groove, the outer periphery of the mounting groove has a clamping part for driving the cleaning roller to rotate;

[0020] a telescopic cap, one end of which is sleeved in the mounting groove and limited by a limiting structure between the mounting groove and the end cap, and the other end is provided with a protrusion away from the mounting groove, the outer edge of the protrusion is transitionally matched with the inner ring of the first bearing;

[0021] a telescopic cap spring, which is clamped between the end cap and the end knob mounting seat to make the end cap protrude out of the mounting groove;

[0022] an end cap, one end of which is sleeved with the outer ring of the first bearing, and the other end is clamped with one side wall of the cleaning head shell.

[0023] In one or some optional embodiments, the limiting structure comprises a limiting waist hole and a limiting pin, the limiting waist hole is opened on the side wall of the end cap along the telescopic direction of the end cap, and the limiting pin is arranged in the side wall of the mounting groove to limit the limiting waist hole.

[0024] In one or some optional embodiments, the end knob body sleeve end outer periphery is provided with a second bearing, an inner ring of the second bearing is in transition fit with the end knob body sleeve end outer periphery, and an outer ring of the second bearing is in transition fit with the end knob mounting seat.

[0025] In a second aspect, to solve the problem that the existing cleaning machine drive motor is troublesome to disassemble and assemble during maintenance and the problem that the cost of replacing the entire cleaning roller is high, the present application further provides a cleaning machine, which comprises a cleaning head shell, a cleaning roller, and a detachable electric drive device as described in the first aspect.

[0026] One side wall of the cleaning head shell has a motor fixing part, which is hingedly connected to one end of the hinge part, and the other end of the hinge part is detachably electrically connected to the electrically connected end of the electric drive assembly.

[0027] The cleaning roller is driven to rotate by the clamping end of the end knob assembly.

[0028] In one or some optional embodiments, the motor fixing part comprises a fixing part body, a hinge head accommodating cavity and a wire harness accommodating cavity opened on the fixing part body, a pin hole is opened on the side wall of the hinge head accommodating cavity, which is used to cooperate with the hinge pin to hinge the hinge part, and the wire harness accommodating cavity is used for the wire harness led out by the hinge part to pass through.

[0029] In one or some optional embodiments, the fixing part body is provided with an annular avoidance step at the position corresponding to the pin hole.

[0030] In one or some optional embodiments, the first end of the hinge part is provided with a bearing mounting step for mounting a third bearing, an inner ring of the third bearing is in transition fit with the bearing mounting step, and an inner cylinder of the cleaning roller is in transition fit with an outer ring of the third bearing on the inner wall of the second end of the hinge part.

[0031] In one or some optional embodiments, the cleaning roller comprises an inner cylinder, an outer cylinder, and a coupling part; the inner cylinder and the outer cylinder can be slidably detached and separated from each other, the coupling part is arranged at one end of the inner cylinder, and the coupling part and the inner cylinder are in interference fit or bonded with each other; a sponge layer for wiping the surface to be cleaned is wrapped on the outer edge of the outer cylinder.

[0032] In a third aspect, the present application further provides a method for maintaining the detachable electric drive device as described in the first aspect, which comprises:

[0033] In the first step, the end knob assembly is pressed to separate the detachable electric drive device from one side wall of the cleaning head shell.

[0034] The second step is to continue rotating the detachable electric drive device around the hinge of the motor fixing part until one side of the cleaning roller leaves the side wall of the cleaning head housing.

[0035] Third step, pull the cleaning roller outward from the side away from the motor fixing part along the outer surface of the detachable electric drive device, and remove the cleaning roller;

[0036] Fourth step, hold the motor heat conduction protection cylinder and forcefully pull the part of the detachable electric drive device away from the motor fixing part to separate the part of the detachable electric drive device from the power terminal of the hinge.

[0037] The fifth step involves further disassembling the detachable electric drive unit, including the motor heat protection cylinder, drive motor, gearbox assembly, and end button assembly.

[0038] The sixth step is to replace the corresponding faulty component and reassemble each component into the detachable electric drive device that was separated and held, and then make a tight connection between this part and the power terminal of the hinge.

[0039] Step 7: Push the cleaning roller from the end button assembly towards the motor fixing part along the outer surface of the detachable electric drive device to complete the snap-fit ​​installation of the cleaning roller on the detachable electric drive device;

[0040] Step 8: While pressing the end button assembly, continue to rotate the detachable electric drive device that covers the cleaning roller around the hinge of the motor fixing part until the end button assembly is re-engaged to one side wall of the cleaning head housing.

[0041] The beneficial effects of this invention are:

[0042] 1. The detachable electric drive device and cleaning machine provided by the present invention have a hinge component that can be detachably installed at the power connection end of the electric drive component of the detachable electric drive device and is hinged to a motor fixing part provided at one end of the cleaning head housing through the hinge component. The rotating output end is equipped with an end button component with a travel along the axial direction of the electric drive component to drive the roller component to rotate the electric drive component. This makes it possible for the cleaning machine composed of the detachable electric drive device to be easily disassembled and installed during the maintenance of the cleaning machine drive motor. The electric drive component can be pulled out by pressing the end button component and the motor can be disassembled and installed by inserting and pulling the hinge component. There is no need to cut the motor lead wire or weld the motor lead wire, making the maintenance, disassembly and installation process more convenient.

[0043] 2、The end button body of the detachable electric drive device end button assembly is driven to rotate by the output shaft of the electric drive assembly, the clamping part of the end button body is clamped with the drive coupling end of one end of the cleaning roller of the cleaning machine to drive the cleaning roller to rotate, and the driven end of the other end of the cleaning roller is rotatably installed on the mounting structure provided on the cleaning head shell. When the detachable electric drive device needs to be disassembled, only the end cap of the end button assembly needs to be pressed, and the telescopic cap of the end button assembly is pushed to shrink, so that the end button assembly can be disassembled from the clamping position of the cleaning head shell, which is more convenient.

[0044] 3、The second bearing is arranged between the end button mounting seat and the output shaft sleeve end of the end button body of the detachable electric drive device end button assembly, the first bearing is arranged between the telescopic cap and the end cap of the end button assembly, and the two coaxially arranged bearings can make the rotating part of the entire end button assembly run more stably under high-speed rotation. The third bearing is arranged between the hinge part outer edge of the hinge and the inner wall of the cleaning roller, the first bearing is arranged between the telescopic cap and the end cap, the second bearing is arranged between the end button mounting seat and the output shaft sleeve end of the end button body, and the three coaxially arranged bearings can make the rotating part of the entire cleaning roller run more stably under high-speed rotation. The rotating connection of the third bearing arranged between the hinge part outer edge of the hinge and the inner wall of the cleaning roller at one end of the hinge and the end button realizes rotating support of the large interval of the inner wall of the cleaning roller, and the radial runout generated in the rotating process of the inner wall of the cleaning roller is minimized, so that the noise of equipment operation is ensured to be small. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art based on these drawings, and do not deviate from the scope of the present application.

[0046] Figure 1 The schematic view of the cleaning machine drum assembly provided with the detachable electric drive device of the present application is assembled to the cleaning head shell.

[0047] Figure 2 The schematic view of the hinge of the detachable electric drive device of the present application is assembled to the motor fixing part.

[0048] Figure 3 The schematic view of the hinge of the detachable electric drive device of the present application is assembled to the motor fixing part. Figure 2

[0049] Figure 4 The schematic view of the hinge of the detachable electric drive device of the present application is assembled to the motor fixing part. Figure 3 ​​

[0050] Figure 5 is Figure 2 sectional view taken along the line A-A.

[0051] Figure 6 is Figure 5 enlarged view taken along the line F-F.

[0052] Figure 7 is

[0053] Figure 8 is Figure 7 sectional view taken along the line B-B.

[0054] Figure 9 is Figure 8 enlarged view taken along the line G-G.

[0055] Figure 10 is Figure 8 enlarged view taken along the line H-H.

[0056] Figure 11 is

[0057] Figure 12 is

[0058] Figure 13 is

[0059] Figure 14 is

[0060] Figure 15 is

[0061] Figure 16 is

[0062] Figure 17 is

[0063] BRIEF DESCRIPTION OF DRAWINGS

[0064] 100, detachable electric drive device;

[0065] 200, cleaning machine;

[0066] 201, cleaning head housing;

[0067] 1. electric drive assembly; 1a. power connection end; 1b. rotating output end;

[0068] 10. heat conducting protection cylinder;

[0069] 11. hinged end sealing plug; 111. sealing plug sleeve part; 112. sealing plug sealing part;

[0070] 12. drive motor;

[0071] 13. reduction gear box assembly;

[0072] 14. output shaft; 141. output end sealing plug;

[0073] 15. electric connection;

[0074] 202. cleaning roller; 202A. drive coupling end; 202B. driven end;

[0075] 2011. motor fixing part; 20111. fixing part body; 20112. hinge joint accommodating cavity; 20113. wire harness accommodating cavity; 20114. pin hole; 20115. hinge pin; 20116. annular clearance step;

[0076] 2012. clamping port;

[0077] 2. hinge joint;

[0078] 21. sleeve part; 22. plug-in part; 23. hinge joint part;

[0079] 3. end knob assembly;

[0080] 31. end knob mounting seat;

[0081] 32. end knob body; 321. output shaft sleeve end; 322. clamping part;

[0082] 33. end cap; 331. end cap side wall;

[0083] 34. telescopic cap spring;

[0084] 35. telescopic cap; 351. limiting waist-shaped hole;

[0085] 36. first bearing;

[0086] 37. limiting pin;

[0087] 38. second bearing;

[0088] M. third bearing.

[0089] The realization of the object, functional features and advantages of the present application will be further explained in combination with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0090] The following detailed description of the application will be made with reference to the accompanying drawings, wherein:

[0091] It should be noted that the terms describing the orientation or positional relationship, such as "upper", "lower", "left", "right", "front", "back", etc. in the embodiments of the present application are based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship of the product in use, and are only used to simplify the description of the present application, and do not mean or imply that the device, element or component must have a specific orientation and a specific orientation structure, and should not be understood as a limitation of the present application. It is only used to explain the relative positional relationship, movement condition, etc. between the components shown in the drawings, and when the specific posture changes, the directional indication may also change accordingly.

[0092] In addition, the ordinal numbers in the present application, such as "first", "second", etc. are only used for distinguishing purposes and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can be explicitly or implicitly and at least one of the technical features. In the description of the present application, "a plurality of" means at least two, i.e. two or more, unless otherwise explicitly limited; "at least one" means one or more.

[0093] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screwed", etc. should be understood broadly, for example, the positional relationship between the components can be relatively fixed, or there can be a physically fixed connection between the components, which can be detachable or integrated structure; it can be mechanical connection or electrical signal connection; it can be directly connected or indirectly connected through intermediate media or components; it can be the internal communication of two elements or the interaction relationship between two elements, unless the specification explicitly limits it, it cannot be understood as other meanings, and it cannot realize the corresponding functions or effects. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0094] The controller and the control circuit involved in the present application are the control technology or units that are conventional to the person skilled in the art, and the control circuit of the controller can be realized by the person skilled in the art using the existing technology, such as simple programming. The software or program involved in realizing the control result in cooperation with the hardware, such as the control process of the software or program that is not described in detail, belongs to the conventional technology of the person skilled in the art. The power supply also adopts the existing technology in the art, and the main technical point of the present application is the improvement of the mechanical device, so the specific circuit control relationship and circuit connection of the present application will not be described in detail.

[0095] The present disclosure provides many different embodiments or examples for implementing different structures of the present application. For simplicity of the present disclosure, the components and settings of particular examples in the present application are described. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to the numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but the person skilled in the art can realize the application of other processes and / or the use of other materials.

[0096] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0097] The scheme of the present application will be described in detail below in conjunction with the accompanying drawings.

[0098] The main technical problem solved by the present application is to provide a detachable electric driving device, which aims to solve the problem that the existing cleaning machine driving motor is more troublesome to disassemble and assemble during maintenance.

[0099] In order to solve the above technical problems, in the first aspect, please refer to Figures 1 to 4 and Figure 13As shown, the application provides a detachable electric drive device 100 installed between two opposite side walls of the cleaner head housing 201, which comprises an electric drive assembly 1, a hinged piece 2 and an end knob assembly 3; the electric drive assembly 1 comprises an electricity connection end 1a and a rotating output end 1b, the rotating output end has an output shaft 14 driven by the electric drive; one end of the hinged piece 2 is detachably connected with the electricity connection end 1a of the electric drive assembly 1, and the other end is used for being hinged with the motor fixing part 2011 arranged on one side wall of the cleaner head housing 201; the end knob assembly 3 comprises an input end (not labeled in the figure) and a clamping end (not labeled in the figure), the input end is coupled with the rotating output end 1b of the electric drive assembly 1, and the clamping end is used for driving the cleaning roller 202 of the cleaning machine 200 to rotate on one hand and is clamped with the other side wall of the cleaner head housing 201 and has an axial movement stroke of the electric drive assembly 1; during maintenance, the electric drive assembly 1 can be quickly separated from the hinged piece 2 at the electricity connection end 1a.

[0100] It should be noted that the outer contour of the electric drive assembly 1 is not limited to a cylindrical shape, but can also be a prism cylinder, for example, a hexagonal prism cylinder, the conductive part (not shown in the figure) inside the hinged piece 2 can be a conductive pin, the electricity connection end 1a of the electric drive assembly 1 is correspondingly provided with a conductive socket matched with the conductive pin, and the conductive part of the hinged piece 2 can also be provided as a conductive clamp, and the electricity connection end 1a of the electric drive assembly 1 is correspondingly provided with an electricity connection column matched with the conductive clamp. The coupling of the input end of the end knob assembly 3 with the rotating output end 1b of the electric drive assembly 1 can be realized by a shaft coupling or by a key and pin matching. The output end of the end knob assembly 3 can be provided as a fin to drive the cleaning roller 202 to rotate, and the clamping end can be provided with a compression spring and a limiting structure to realize the axial movement stroke of the electric drive assembly 1.

[0101] The main beneficial effects of the application are as follows: the detachable electric drive device 100 provided by the application is detachably installed at the electricity connection end 1a of the electric drive assembly 1 of the detachable electric drive device 100 and is hinged with the motor fixing part 2011 arranged at one end of the cleaner head housing 201 through the hinged piece 2, and the rotating output end 1b is installed with the end knob assembly 3 having an axial movement stroke of the electric drive assembly 1 to drive the cleaning roller 202 to rotate the electric drive assembly 1; so that the cleaning machine 200 composed of the detachable electric drive device 100 only needs to press the end knob assembly 3, remove the cleaning roller 202, further push out the electric drive assembly 1 and realize the dismounting and mounting of the motor through the plugging of the hinged piece 2 when the cleaning machine 200 is dismounted and mounted for maintenance of the driving motor 12, without the need of cutting and welding the motor lead, and the maintenance dismounting and mounting process is relatively convenient.

[0102] In a specific embodiment, as Figure 3and Figures 13 to 16 As shown in the figure, the hinge 2 comprises a sleeve part 21, a plug-in part 22 and a hinge part 23; the sleeve part 21 is sleeved with the electricity connection end 1a of the electric drive assembly 1; the plug-in part 22 is arranged in the middle of the sleeve part 21 and is matched with the electric connector 15 arranged on the electricity connection end 1a of the electric drive assembly 1; the hinge part 23 is arranged at the back of the sleeve part 21 and is used for being hinged with the motor fixing part 2011.

[0103] It should be noted that the outer diameters of the sleeve part 21 and the hinge part 23 can be the same or different, in order to facilitate installation, in the embodiment, the outer diameter of the hinge part 23 is smaller than that of the sleeve part 21. The hinge 2 is divided into the sleeve part 21 and the hinge part 23, which can better separate the plug-in part 22 arranged in the sleeve part 21 from the hinge area, so as to ensure that the electricity connection area of the plug-in part 22 is not polluted by the hinge area in contact with the external connection, and the cleanliness of the electricity connection area of the plug-in part 22 is ensured to a certain extent.

[0104] In a specific embodiment, the detachable electric drive device 100 further comprises a hinge end sealing plug 11 arranged on the electricity connection end 1a, and the electric connector 15 is arranged in the middle of the hinge end sealing plug 11.

[0105] In order to ensure the dustproof and waterproof properties inside the electric drive assembly 1, in the embodiment of the application, as shown in Figure 3 、 Figure 8 、 Figure 9 、 Figure 14 and Figure 15 shown, the detachable electric drive device 100 further comprises a hinge end sealing plug 11 arranged on the electricity connection end 1a of the electric drive assembly 1; the electric connector 15 is arranged in the middle of the hinge end sealing plug 11. The arrangement of the hinge end sealing plug 11 not only facilitates the arrangement of the electric connector 15 on the electricity connection end 1a of the electric drive assembly 1, but also avoids the entry of dust and water from the electricity connection end 1a of the cylindrical electric drive device into the inside of the electric drive assembly 1. The material of the hinge end sealing plug needs to be selected from insulating materials, such as insulating rubber.

[0106] In a specific embodiment, please further refer to Figure 9 、 Figure 14 and Figure 15The hinged end sealing plug 11 comprises a sealing plug sealing part 112 and a sealing plug sleeve part 111, the sealing plug sleeve part 111 is sealed with the sleeve part 21 of the hinged part 2, and the sealing plug sealing part 112 is sealed and connected with the inner wall of the shell of the electric driving assembly 1. The sealing plug sleeve part 112 is sleeved with the sleeve part 21. The sealing connection can be a threaded connection, adhesion, or clamping with a sealing ring. In the embodiment of the application, clamping with a sealing ring is adopted. The hinged end sealing plug 11 is arranged as above, which facilitates the connection of the hinged part 2 and the main body of the electric driving assembly 1 and has good coaxiality.

[0107] In a specific embodiment, as shown in Figure 4 、 Figures 8 to 10 、 Figure 14 、 Figure 15 and Figure 17 , the electric driving assembly 1 further comprises a heat-conducting protective cylinder 10, a driving motor 12, a speed reducer box assembly 13 and an output shaft 14 which are sequentially coupled and arranged in the heat-conducting protective cylinder 10. The heat-conducting protective cylinder 10 is preferably made of metal. The heat-conducting protective cylinder 10 can be directly attached to the shell of the driving motor 12 or can be filled with heat-conducting silicone grease to achieve heat dissipation of the driving motor 12. The units of the electric driving assembly 1 are arranged in the heat-conducting protective cylinder 10, which can prevent the units of the electric driving assembly 1 from being polluted by dust and water vapor and improve the reliability of the units of the electric driving assembly 1.

[0108] In a specific embodiment, as shown in Figure 8 、 Figure 10 、 Figure 14 、 Figure 15 , an output end sealing plug 141 is arranged on the inner wall of the heat-conducting protective cylinder 10 at a position corresponding to the outer periphery of the output shaft 14. The output end sealing plug 141 has a through hole in the middle part. The output shaft 14 passes through the through hole of the output end sealing plug 141. A gap is left between the through hole and the outer edge of the output shaft 14. A sealing ring is clamped in the end of the through hole away from the speed reducer box assembly 13. The sealing ring and the output shaft 14 can rotate relative to each other. The arrangement of the output end sealing plug 141 further improves the dustproof and waterproof properties of the electric driving assembly 1.

[0109] In a specific embodiment, as shown in Figure 4 、 Figure 8 、 Figure 10 、 Figures 13 to 17As shown, the end knob assembly 3 comprises an end knob mounting base 31, an end knob body 32, an end cap 33, a telescopic cap spring 34 and a telescopic cap 35. The end knob mounting base 31 is sleeved on the outer periphery of the output shaft 14 and detachably connected with the output end sealing plug 141, and the outer edge of one end of the end knob mounting base 31 is clamped on the opening of the end of the heat conduction protection cylinder 10, and the middle part of the end knob mounting base 31 is provided with a through hole. The outer edge of the end knob body 32 is clamped on the inner wall of one end of the cleaning roller 202 through a clamping part 322, and the middle part of the end knob body 32 is provided with a through hole. The end knob body 32 comprises an output shaft sleeving end 321 and a containing end (not labeled in the figure), the sleeving end 321 is sleeved on the rotating end of the output shaft 14, and the containing end is provided with a mounting groove (not labeled in the figure). The mounting groove is provided with the clamping part 322 on the outer periphery for driving the cleaning roller to rotate. The clamping part 322 is used for driving the cleaning roller 202 of the cleaning machine 200 to rotate. One end of the telescopic cap 35 is sleeved in the mounting groove and limited by the limiting structure between the mounting groove and the telescopic cap 35, and the other end extends outward in the direction away from the electric drive assembly 1 and is provided with a protrusion. The outer edge of the protrusion is transitionally fitted with the inner ring of the first bearing 36, and the end of the protrusion is limited by a gasket fastened by a screw to the first bearing 36. The telescopic cap spring 34 is clamped between the telescopic cap 35 and the end knob mounting base 31 to make the telescopic cap 35 extend out of the mounting groove. One end of the end cap 33 is open and the other end is closed. The open end is sleeved on the outer ring of the first bearing 36, and the outer edge of the end cap 33 is clamped on one side wall of the cleaning head housing 201. The closed end can be pressed, and the end cap 33 can push the telescopic cap 35 to shrink backward in the mounting groove after being pressed.

[0110] In use, the end knob body 32 is driven to rotate by the output shaft 14 of the electric drive assembly 1, the clamping part 322 of the end knob body 32 is clamped with the driving coupling end 202A of one end of the cleaning roller 202 of the cleaning machine 200 to drive the cleaning roller 202 to rotate. The driven end 202B of the other end of the cleaning roller 202 can be rotatably installed on the mounting structure provided on the cleaning head housing 201, for example, can be rotatably installed on the outer periphery of the motor fixing part 2011. The clamping part 322 can be provided with a fin-shaped structure matched with the clamping groove provided on the inner wall of the roller assembly 202. When the detachable electric drive device 100 needs to be disassembled, the end cap 33 is only needed to be pressed to push the telescopic cap 35 to shrink, and then the end knob assembly 3 can be detached from the clamping position of the cleaning head housing 201, which is more convenient.

[0111] In this embodiment, please further refer to Figure 7 、 Figure 8 、 Figure 10The outer edge of the end cap 33 and the clamping interface 2012 of the cleaning head shell 201 are circular, and in actual use, the end cap 33 and the clamping interface 2012 do not rotate relative to each other, and the circular shape is only for quick clamping without direction and angle restrictions. Of course, the outer edge of the end cap 33 and the clamping interface 2012 can also be triangular, rectangular, pentagonal, hexagonal, heptagonal or other regular polygonal shapes according to requirements, as long as the shapes of the two can be matched for clamping without rotating relative to each other.

[0112] In a specific embodiment, as shown in Figure 8 , Figure 10 , Figure 14 and Figure 15 , the limiting structure includes a limiting waist-shaped hole 351 and a limiting pin 37, the limiting waist-shaped hole 351 is arranged on the side wall of the telescopic cap 35 along the telescopic direction of the telescopic cap 35, and the limiting pin 37 is arranged through the side wall of the mounting groove to limit the limiting waist-shaped hole 351. The cooperation of the limiting pin 37 and the limiting waist-shaped hole 351 makes the telescopic cap 35 not easy to pop out of the cleaning head shell 201, thereby enhancing the reliability of the end cap 33 in use. More importantly, the cooperation of the limiting pin 37 and the limiting waist-shaped hole 351 limits the telescopic stroke of the telescopic cap 35 under the action of the telescopic cap spring 34.

[0113] In a specific embodiment, the outer periphery of the output shaft sleeve end 321 of the end knob body 32 is sleeved with a second bearing 38, the inner ring of the second bearing 38 is in transition fit with the outer periphery of the output shaft sleeve end 321 of the end knob body 32, and the outer ring of the second bearing 38 is in transition fit with the end knob mounting seat 31. The second bearing 38 is arranged between the end knob mounting seat 31 and the output shaft sleeve end 321 of the end knob body 32, and cooperates with the first bearing 36 arranged between the telescopic cap 35 and the end cap 33, so that the two coaxially arranged bearings can make the rotating part of the entire end knob assembly 3 run more stably at high speed.

[0114] In a specific embodiment, as shown in Figure 4 , Figures 7 to 10 , the present application also provides a cleaning machine 200, which includes a cleaning head shell 201, a cleaning roller 202 and the detachable electric drive device 100 as described in the first aspect. The cleaning head shell 201 has a motor fixing part 2011, which is hingedly connected to one end of the hinged piece 2, and the other end of the hinged piece 2 is detachably electrically connected to the power connection end 1a of the electric drive assembly 1. The cleaning roller 202 is driven to rotate by the rotating output end 1b of the end knob assembly 3. Since the cleaning machine 200 adopts all the technical solutions of the detachable electric drive device 100 described above, it also has corresponding technical effects, and thus no further description is given here.

[0115] In a specific embodiment, as shown in Figure 6 , Figure 8 , Figure 9 The motor fixing part 2011 includes a fixing part body 20111, a hinge joint accommodating cavity 20112 and a wire harness accommodating cavity 20113 formed on the fixing part body 20111. The side wall of the hinge joint accommodating cavity 20112 is provided with a pin hole 20114 for cooperating with the hinge pin 20115 to articulate the hinge piece 2. The wire harness accommodating cavity 20113 is used for the wire harness led out by the hinge piece 2 to pass through.

[0116] In a specific embodiment, as shown in Figure 6 , Figure 8 , Figure 9 The fixing part body 20111 is provided with an annular clearance step 20116 at the position corresponding to the pin hole 20114. The annular clearance step 20116 provides a larger movement space for the fixing part body 20111 and the hinge piece 2 at the articulation position, avoiding the inconvenience of rotation of the fixing part body 20111 and the hinge piece 2 during disassembly of the detachable electric drive device 100, and improving the convenience of disassembly.

[0117] In a specific embodiment, the outer edge of the articulation part 23 of the hinge piece 2 is provided with a bearing mounting step (not marked in the figure) for mounting a third bearing M. The inner ring of the third bearing M is in transition fit with the bearing mounting step, and the inner wall of the cleaning roller 202 is in transition fit with the outer ring of the third bearing M. The third bearing M is arranged between the outer edge of the articulation part 23 of the hinge piece 2 and the inner wall of the cleaning roller 202, and the first bearing 36 arranged between the telescopic cap 35 and the end cap 31, and the second bearing 38 arranged between the end knob mounting seat 31 and the output shaft sleeve end 321 of the end knob body 32. The three groups of coaxially arranged bearings can make the rotating part of the entire cleaning roller 202 run more stably at high speed. The rotation connection of the third bearing M arranged between the outer edge of the articulation part 23 of the hinge piece 2 and the inner wall of the cleaning roller 202 and the end knob realizes the rotation support of the large distance of the inner wall of the cleaning roller 202, maximally reduces the radial runout generated in the rotation process of the inner wall of the cleaning roller 202, and ensures the smaller noise of the equipment operation.

[0118] In a specific embodiment, as shown in Figure 11 , Figure 12As shown, the cleaning roller 202 includes an inner cylinder 2021, an outer cylinder 2022, and a coupling part 2023. The inner cylinder 2021 and the outer cylinder 2022 can be detachably separated from each other. The outer edge of the inner cylinder 2021 is provided with a T-shaped reinforcing rib extending in the axial direction, and the outer cylinder 2022 is provided with a matching groove corresponding to the shape of the reinforcing rib. The matching of the reinforcing rib of the inner cylinder 2021 and the matching groove of the outer cylinder 2022 can further improve the output capability of the inner cylinder 2021 to the outer cylinder 2022 to transmit torque, and can also facilitate the disassembly and maintenance of the two. Further, the outer edge of the outer cylinder 2022 is covered with a sponge layer (not labeled in the figure) that can wipe the surface to be cleaned. Because the sponge layer needs to wipe the surface to be cleaned on one hand and also needs to withstand the extrusion of the water extrusion strip (not shown in the figure) of the cleaning head on the other hand, the sponge layer will be worn out after being used by the user for a period of time. When the degree of wear significantly reduces the cleaning ability of the cleaning machine 200, the sponge layer needs to be replaced. The detachable design of the inner cylinder 2021 and the outer cylinder 2022 can allow the user to conveniently replace the outer cylinder 2022 when the cleaning roller 202 needs to be replaced, thereby reducing the cost of replacing the entire cleaning roller 202. The coupling part 2023 is arranged at one end of the inner cylinder 2021, and the coupling part 2023 is in interference fit with the inner cylinder 2021. The two are not easy to slide and rotate relative to each other. In order to further improve the stability of the interference fit between the two and further prevent the two from sliding relative to each other, the two can be further bonded. The coupling part 2023 is coupled with the clamping part 322 of the end knob body 32. When the end knob body 22 rotates, it drives the coupling part 2023 to rotate synchronously, thereby driving the entire cleaning roller 202 to rotate. The coupling part 2023 is arranged at one end of the inner cylinder 2021, which can facilitate the external rotating drive mechanism to conveniently drive the entire cleaning roller 202 to rotate by coupling one end of the cleaning roller 202.

[0119] In a third aspect, the application further provides a method for maintaining the detachable electric drive device of the first aspect. The specific steps include:

[0120] In a first step, the end knob assembly is pressed to separate the detachable electric drive device from one side wall of the cleaning head housing;

[0121] In a second step, the detachable electric drive device is continuously rotated around the hinge of the motor fixing part until the cleaning roller is separated from one side wall of the cleaning head housing;

[0122] In a third step, the cleaning roller is pulled out from the outer surface of the detachable electric drive device away from the side of the motor fixing part, and the cleaning roller is removed;

[0123] Fourth step, holding the motor heat protection cylinder, the holding part of the detachable electric drive device is pulled outwards in the direction away from the motor fixed part, and the holding part of the detachable electric drive device is separated from the electric connection end of the hinge piece;

[0124] Fifth step, the separated holding part of the detachable electric drive device is further disassembled into motor heat protection cylinder, drive motor, reduction box assembly and end button assembly;

[0125] Sixth step, the corresponding faulty components are replaced, and each component is reassembled into the separated holding part of the detachable electric drive device, and the part is tightly connected with the electric connection end of the hinge piece;

[0126] Seventh step, the cleaning roller is pushed inwards along the outer surface of the detachable electric drive device from the end button assembly end to the motor fixed part, and the cleaning roller is clamped and installed in the detachable electric drive device;

[0127] Eighth step, while pressing the end button assembly, continue to rotate the detachable electric drive device with the cleaning roller around the hinge of the motor fixed part until the end button assembly is clamped back to the side wall of the cleaning head shell.

[0128] The above describes the embodiments of the present application in detail, and the specific examples are applied to explain the principles and implementation modes of the present application. The above embodiment description is only used to help understand the method and its core idea. Meanwhile, the changes or deformations made by the skilled in the art according to the idea of the present application, based on the specific implementation mode and application range of the present application, all belong to the protection scope of the present application. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A detachable electric driving device, which is installed between two opposite side walls of a cleaner head housing and used to drive a cleaning roller to rotate, characterized in that, The utility model relates to a detachable electric drive device for a cleaning head, comprising: an electric drive assembly including an electricity connection end and a rotating output end, the rotating output end having an output shaft rotated by the electric drive, the electric drive assembly further including a heat-conducting protection cylinder, an output end sealing plug being provided on the inner wall of the heat-conducting protection cylinder at a position corresponding to the outer periphery of the output shaft; an end button assembly including an input end and a clamping end, the input end being coupled to the output shaft, the outer periphery of the input end being coupled to and driving a cleaning roller to rotate, the clamping end being clamped to the other side wall of the cleaning head shell and having an axial movement range along the electric drive assembly; a hinge member having one end detachably connected to the electricity connection end and the other end hingedly connected to the motor fixing part of the side wall of the cleaning head shell, the hinge member including: a sleeving part sleeved to the electricity connection end of the electric drive assembly; a plug-in part provided in the middle of the sleeving part of the hinge member and matched with an electric connector provided on the electricity connection end; a hinging part provided at the back of the sleeving part and used for hinging to the motor fixing part; in use, the abutting position of the electricity connection end of the electric drive assembly and the hinge member is protected by the cleaning roller, and after the cleaning roller is removed, the electric drive assembly can be quickly separated from the abutting position of the electricity connection end and the hinge member.

2. The detachable electric drive device according to claim 1, characterized in that The end button assembly further includes: an end button mounting seat having one end sleeved to the outer periphery of the output shaft and detachably connected to the output end sealing plug and the other end clamped to the opening at the end of the heat-conducting protection cylinder; an end button body having a middle part in the form of a through hole, including an output shaft sleeving end and a receiving end, the sleeving end being sleeved and mounted to the rotating end of the output shaft, the receiving end having a mounting groove, the outer periphery of the mounting groove having a clamping part for driving the cleaning roller to rotate; an end cap having one end sleeved to the outer ring of the first bearing and the other end clamped to the side wall of the cleaning head shell; a telescopic cap having one end sleeved to the mounting groove and limited by the limiting structure between the mounting groove and the end cap, the other end being provided with a protrusion away from the mounting groove, the outer periphery of the protrusion being transitionally matched with the inner ring of the first bearing; a telescopic cap spring clamped between the end cap and the end button mounting seat to make the end cap extend out of the mounting groove; when the detachable electric drive device needs to be disassembled, the telescopic cap is retracted by pressing the end cap, and the electric drive assembly can be separated from the clamping position of the cleaning head shell around the motor fixing part.

3. The detachable electric drive device according to claim 2, wherein The electric drive assembly further includes a hinging end sealing plug mounted to the electricity connection end, and the electric connector is provided in the middle of the hinging end sealing plug.

4. The detachable electric drive device according to claim 3, wherein The hinging end sealing plug includes a sealing plug sealing part and a sealing plug sleeving part, the sealing plug sealing part being sealingly connected to the inner wall of the shell of the electric drive assembly, and the sealing plug sleeving part being sleeved to the sleeving part.

5. The detachable electric drive device according to claim 1, wherein The electric drive assembly further includes a driving motor and a speed reducer assembly accommodated in the heat-conducting protection cylinder, the driving motor, the speed reducer assembly and the output shaft being sequentially coupled in the motor heat-conducting protection cylinder.

6. The detachable electric drive device according to claim 2, wherein The limiting structure includes a limiting waist-shaped hole and a limiting pin, the limiting waist-shaped hole being provided in the side wall of the end cap along the telescopic direction of the end cap, and the limiting pin being provided in the side wall of the mounting groove to limit the limiting waist-shaped hole.

7. The detachable electric drive device according to claim 2, wherein The outer periphery of the sleeving end of the end button body is provided with a second bearing, the inner ring of the second bearing being transitionally matched with the outer periphery of the sleeving end of the end button body, and the outer ring of the second bearing being transitionally matched with the end button mounting seat.

8. A cleaning machine characterized by, The utility model relates to a detachable electric drive device for a cleaning head, comprising: a cleaning head shell, a cleaning roller and the detachable electric drive device as claimed in any one of claims 1 to 7; one side wall of the cleaning head shell having a motor fixing part hingedly connected to one end of the hinge member, the other end of the hinge member being detachably electrically connected to the electricity connection end of the electric drive assembly; the cleaning roller being driven to rotate by the clamping end of the end button assembly.

9. The cleaning machine of claim 8, wherein, The motor fixing part comprises a fixing part body, a hinge joint accommodating cavity and a wire harness accommodating cavity provided on the fixing part body, a pin hole is provided on the side wall of the hinge joint accommodating cavity to cooperate with the hinge pin and the corresponding hinge joint, and the wire harness accommodating cavity is used for the wire harness led out by the hinge joint.

10. The cleaning machine of claim 9, wherein, The fixing part body is provided with an annular clearance step at the position corresponding to the pin hole.

11. The cleaning machine of claim 8, wherein, The outer edge of the hinge joint part is provided with a bearing mounting step for mounting the third bearing, and the inner ring of the third bearing is in transition cooperation with the bearing mounting step.

12. The cleaning machine of claim 8, wherein, The cleaning roller comprises an inner cylinder, an outer cylinder and a coupling part; the inner cylinder and the outer cylinder can be slidably detached and separated, the coupling part is arranged at one end of the inner cylinder, and the coupling part and the inner cylinder are in interference fit or adhesion; a sponge layer for wiping the surface to be cleaned is wrapped on the outer edge of the outer cylinder.

13. A method of maintaining the detachable electric drive device according to any one of claims 5 to 7, characterized in that, The method comprises the following steps: First step, press the end button assembly to realize the separation of the detachable electric driving device from the side wall of the cleaning head shell; Second step, continue to rotate the detachable electric driving device around the hinge joint of the motor fixing part until the side of the cleaning roller is away from the side wall of the cleaning head shell; Third step, pull out the cleaning roller from the side away from the motor fixing part along the outer surface of the detachable electric driving device, and remove the cleaning roller; Fourth step, hold the motor heat protection cylinder, and pull the held part of the detachable electric driving device outward in the direction away from the motor fixing part, and separate the held part of the detachable electric driving device from the power connection end of the hinge joint; Fifth step, further disassemble the motor heat protection cylinder, the driving motor, the speed reducer assembly and the end button assembly from the separated held part of the detachable electric driving device; Sixth step, replace the corresponding faulty components, and reassemble the components into the separated held part of the detachable electric driving device, and complete the close butt joint of the part and the power connection end of the hinge joint; Seventh step, push the cleaning roller from the end button assembly end to the motor fixing part along the outer surface of the detachable electric driving device, and complete the clamping installation of the cleaning roller on the detachable electric driving device; Eighth step, press the end button assembly, and continue to rotate the detachable electric driving device with the cleaning roller around the hinge joint of the motor fixing part until the end button assembly is clamped back to the side wall of the cleaning head shell.

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