CN117443809A - Detachable electric driving device, cleaning machine and maintenance method of electric driving device - Google Patents

Abstract

The invention discloses a detachable electric driving device and a cleaning machine, wherein the detachable electric driving device comprises: the cleaning head comprises an electric driving assembly, a hinging piece and an end button assembly, wherein one end of the hinging piece is detachably and electrically connected with the electric receiving end of the electric driving assembly, and the other end of the hinging piece is hinged with a motor fixing part arranged at one end of a cleaning head shell; the end button assembly is characterized in that an input end of the end button assembly is coupled with a rotation output end of the electric drive assembly, the output end of the end button assembly is used for driving a roller assembly of the cleaning machine to rotate, and a clamping end of the clamping end is rotationally connected with the other end of the cleaning head shell and has an axial movable stroke along the electric drive assembly. The technical scheme of the invention solves the problems that the existing cleaning machine driving motor is troublesome to disassemble and assemble in the maintenance process.

Description

Detachable electric driving device, cleaning machine and maintenance method of electric driving device

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to a detachable electric driving device, a cleaning machine and an electric driving device maintenance method.

Background

In the prior art, an inner cylinder is arranged in an outer cylinder of a cleaning roller, a motor in the inner cylinder is powered by a power line introduced from one end of the inner cylinder to a head hinged with the cleaning head, and the head cannot be detached and separated from the cleaning head along with the cleaning roller because the head is hinged with the cleaning head, and meanwhile, the power line penetrates through the head; the cleaning head is completely detached, the power line is cut off when the driving motor is maintained, the cleaning head can be completely detached, the cut power line is required to be reconnected when the maintenance is completed and the maintenance process is carried out again, and the problems that the disassembly and the assembly are troublesome and the like exist.

Disclosure of Invention

The invention provides a detachable electric driving device, a cleaning machine and a maintenance method of the electric driving device, and aims to solve the problems that the existing cleaning machine driving motor is troublesome to disassemble and assemble in the maintenance process.

In order to solve the above-mentioned problems, in a first aspect, the present invention provides a detachable electric driving device installed between two opposite sidewalls of a cleaning head housing for driving a cleaning roller to rotate, the detachable electric driving device comprising:

the electric driving assembly comprises an electric connection end and a rotation output end, and the rotation output end is provided with an output shaft which is driven to rotate by electricity;

one end of the hinge component is detachably and electrically connected with the power-on end, and the other end of the hinge component is hinged with a motor fixing part on one side wall of the cleaning head shell;

the end button assembly comprises an input end and a clamping end, the input end is coupled with the output shaft, the outer edge of the input end is coupled with the cleaning roller and drives the cleaning roller to rotate, and the clamping end is clamped with the other side wall of the cleaning head shell and has a movable stroke along the axial direction of the electric drive assembly;

the electric drive assembly may be quickly separated from the hinge at the power receiving end during maintenance.

In one or some alternative embodiments, the hinge includes:

the sleeving part is sleeved with the power-on end of the electric driving assembly;

the plug-in component is arranged in the middle of the sleeving part of the hinge component and is matched with the electric connecting component arranged at the electric connecting end;

and the hinge part is arranged at the back of the sleeving part and is used for being hinged with the motor fixing part.

In one or some alternative embodiments, the detachable electric driving device further comprises a hinged end sealing plug mounted on the electric connection end, and the electric connector penetrates through the middle of the hinged end sealing plug.

In one or some alternative embodiments, the hinged end sealing plug includes a sealing plug sealing portion and a sealing plug socket portion, the sealing plug sealing portion is in sealing connection with the inner wall of the housing of the electric drive assembly, and the sealing plug socket portion is in socket connection with the socket portion.

In one or some alternative embodiments, the electric drive assembly further comprises: the heat conduction protection cylinder, the driving motor and the reduction box assembly are accommodated in the heat conduction protection cylinder, and the driving motor, the reduction box assembly and the output shaft are sequentially coupled in the heat conduction protection cylinder.

In one or some optional embodiments, an output end sealing plug is arranged on the inner wall of the heat conduction protection cylinder at a corresponding position of the periphery of the output shaft.

In one or some alternative embodiments, the end button assembly includes:

one end of the end button mounting seat is sleeved on the periphery of the output shaft and detachably connected with the output end sealing plug, and the outer edge of the other end of the end button mounting seat is clamped on the opening at the end part of the heat conduction protection cylinder;

the middle part of the end button body is arranged in a penetrating way and comprises an output shaft sleeving end and an accommodating end, the sleeving end is sleeved and arranged at the rotating end of the output shaft, the accommodating end is provided with an installation groove, and the periphery of the installation groove is provided with a clamping part for driving the cleaning roller to rotate;

one end of the telescopic cap is sleeved on the mounting groove and is limited by a limiting structure between the mounting groove and the end cap, the other end of the telescopic cap is provided with a bulge deviating from the mounting groove, and the outer edge of the bulge is in transition fit with the inner ring of the first bearing;

the telescopic cap spring is clamped between the end cap and the end button mounting seat so that the end cap extends out of the mounting groove;

and one end of the end cap is sleeved on the outer ring of the first bearing, and the other end of the end cap is clamped with one side wall of the cleaning head shell.

In one or some optional embodiments, the limiting structure includes a limiting waist-shaped hole and a limiting pin, the limiting waist-shaped hole is formed in the side wall of the end cap along the extending direction of the end cap, and the limiting pin penetrates through the side wall of the mounting groove to limit the limiting waist-shaped hole.

In one or some alternative embodiments, the end button body is sleeved with a second bearing, the second bearing inner ring is in transition fit with the end button body sleeved end periphery, and the second bearing outer ring is in transition fit with the end button mounting seat.

In order to solve the problems that the disassembly and assembly are troublesome and the cost for replacing the whole cleaning roller is high in the maintenance process of the driving motor of the conventional cleaning machine, the invention also provides a cleaning machine, which comprises a cleaning head shell, a cleaning roller and the detachable electric driving device in the first aspect;

a motor fixing part is arranged on one side wall of the cleaning head shell and hinged with one end of the hinge piece, and the other end of the hinge piece is detachably and electrically connected with the power-receiving end of the electric drive assembly;

the cleaning roller is driven to rotate by the clamping end of the end button assembly.

In one or some optional embodiments, the motor fixing portion includes a fixing portion body, and a hinge head accommodating cavity and a wire harness accommodating cavity which are formed in the fixing portion body, a pin hole is formed in a side wall of the hinge head accommodating cavity, and the pin hole is used for being matched with a hinge pin to be hinged with the corresponding hinge piece, and the wire harness accommodating cavity is used for allowing a wire harness led out by the hinge piece to pass through.

In one or some alternative embodiments, the fixing portion body is provided with an annular clearance step at a position corresponding to the pin hole.

In one or some alternative embodiments, the first end of the hinge is provided with a bearing mounting step for mounting a third bearing, the inner ring of the third bearing is in transition fit with the bearing mounting step, and the inner wall of the cleaning roller at the second end of the hinge is in transition fit with the outer ring of the third bearing.

In one or some alternative embodiments, the scrub roller includes an inner barrel, an outer barrel, and a coupling; the inner cylinder and the outer cylinder can slide mutually, be disassembled 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; the outer edge of the outer cylinder is coated with a sponge layer which can wipe the surface to be cleaned.

In a third aspect, the present invention also provides a method of maintaining a removable electric drive as described in the first aspect, comprising:

the first step, press the said end button assembly to realize the separation of the said detachable electric drive unit from a sidewall of the said cleaning head shell;

a second step of continuing to rotate the detachable electric driving device around the hinge joint of the motor fixing part until one side of the cleaning roller leaves a side wall of the cleaning head shell;

thirdly, the cleaning roller is pulled out from one side far away from the motor fixing part along the outer surface of the detachable electric driving device, and the cleaning roller is taken down;

holding the motor heat conduction protection cylinder, pulling out the held part of the detachable electric driving device towards the direction deviating from the motor fixing part by force, and separating the held part of the detachable electric driving device from the electric connection end of the hinge piece;

fifthly, the separated held part of the detachable electric driving device is further detached to form a motor heat conduction protection cylinder, a driving motor, a reduction gearbox assembly and an end button assembly;

step six, replacing the corresponding faulty assembly, and then assembling each assembly again to form a part of the detachable electric driving device which is held by the separated assembly, and tightly butting the part with the electric connection end of the hinge piece;

seventhly, pushing the cleaning roller inwards along the outer surface of the detachable electric driving device from the end button assembly end towards the motor fixing part to finish the clamping installation of the cleaning roller on the detachable electric driving device;

eighth, while pressing the end button assembly, the detachable electric driving device which is sleeved with the cleaning roller is continuously rotated around the hinge joint of the motor fixing part until the end button assembly is clamped back to one side wall of the cleaning head shell again.

The invention has the beneficial effects that:

1. according to the detachable electric driving device and the cleaning machine, the hinge piece is detachably arranged at the power-receiving end of the electric driving component of the detachable electric driving device and is hinged with the motor fixing part arranged at one end of the cleaning head shell through the hinge piece, and the rotary output end is provided with the end button component with the axial movable stroke along the electric driving component so as to drive the rotary drum component to rotate the electric driving component; so that the cleaning machine composed of the detachable electric driving device can realize the disassembly and the assembly of the motor by only pulling out the electric driving assembly after pressing the end button assembly when the cleaning machine driving motor is maintained and disassembled, and the motor lead wire does not need to be cut off and welded, and the maintenance and the disassembly and the assembly process are more convenient.

2. The end button body of the end button assembly of the detachable electric driving device is driven to rotate by the output shaft of the electric driving assembly, and the clamping part of the end button body is clamped with the drive coupling end at one end of the cleaning roller of the cleaning machine to drive the cleaning roller to rotate; the driven end of the other end of the cleaning roller can be rotatably arranged on the mounting structure arranged on the cleaning head shell. When the detachable electric driving device is required to be detached, the end cap of the end button assembly is only required to be pressed, the end cap pushes the telescopic cap of the end button assembly to retract, and the telescopic cap can be detached from the clamping position of the cleaning head shell, so that the detachable electric driving device is convenient.

3. According to the detachable electric driving device end button assembly, the second bearing is arranged between the end button mounting seat and the sleeved end of the output shaft of the end button body, the first bearing is matched between the telescopic cap and the end cap of the end button assembly, and the two groups of bearings which are coaxially arranged can enable the rotating part of the whole end button assembly to run more stably under high-speed rotation. The third bearing is arranged between the outer edge of the hinge part and the inner wall of the cleaning roller, the first bearing is matched between the telescopic cap and the end cap, the second bearing is arranged between the end button mounting seat and the sleeved end of the output shaft of the end button body, and the three groups of bearings which are coaxially arranged can enable the rotating part of the whole cleaning roller to run more stably under high-speed rotation. The inner wall of the cleaning roller is positioned at one end of the hinging piece and is connected with the end button in a rotating way through the third bearing arranged at the outer edge of the hinging part of the hinging piece, so that the cleaning roller inner wall is supported in a rotating way at a larger distance, radial runout generated in the rotating process of the cleaning roller inner wall is reduced to the maximum extent, and smaller noise of equipment operation is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained by those skilled in the art from these drawings, without going beyond the scope of the protection claimed in the present application.

Figure 1 is a schematic view of the drum assembly of a cleaning machine equipped with a removable electric drive of the present invention assembled to a cleaning head housing.

Fig. 2 is a schematic view of the hinge assembly of the detachable electric drive device of the present invention assembled to the motor fixture.

Fig. 3 is a schematic view of the detachable electric drive device of the present invention further installed on the basis of fig. 2.

Fig. 4 is a schematic view of the further installation of the drum assembly on the basis of fig. 3.

Fig. 5 is a cross-sectional view taken along the direction a in fig. 2.

Fig. 6 is a partial enlarged view of F in fig. 5.

Figure 7 is a perspective view of the cleaning machine drum assembly of the present invention with the removable electric drive assembly attached to the cleaning head housing.

Fig. 8 is a sectional view taken along direction B in fig. 7.

Fig. 9 is a partial enlarged view of G in fig. 8.

Fig. 10 is a partial enlarged view of H in fig. 8.

FIG. 11 is a cross-sectional view through the hub of an embodiment of the removable electric drive of the present invention, prior to being coupled to the hinge.

FIG. 12 is a cross-sectional view through the hub of a cylinder assembly of a cleaning machine in cooperation with a removable electric drive of the present invention.

Fig. 13 is a front view of an embodiment of the removable electric drive of the present invention.

Fig. 14 is a cross-sectional view through the hub of an assembled removable electric drive apparatus embodiment of the present invention.

Fig. 15 is a cross-sectional view through the hub of a schematic of a detachable electric drive device according to an embodiment of the present invention.

Fig. 16 is a schematic perspective view of a detachable electric drive device according to an embodiment of the present invention in a sleeved connection with a hinge.

Fig. 17 is an exploded view of an embodiment of the removable electric drive of the present invention.

Reference numerals illustrate:

100. a detachable electric drive device;

200. a cleaning machine;

201. a cleaning head housing;

1. an electric drive assembly; 1a, an electric terminal; 1b, rotating an output end;

10. a heat conduction protection cylinder;

11. a hinged end sealing plug; 111. a sealing plug sleeving part; 112. a sealing plug sealing part;

12. a driving motor;

13. a reduction gearbox assembly;

14. an output shaft; 141. an output end sealing plug;

15. an electrical connection;

202. a cleaning roller; 202A, driving a coupling end; 202B, a driven end;

2011. a motor fixing part; 20111. a fixing part body; 20112. a joint accommodating chamber; 20113. a wire harness accommodation chamber; 20114. a pin hole; 20115. a hinge pin; 20116. an annular clearance step;

2012. a card interface;

2. a hinge;

21. a socket joint part; 22. a plug-in component; 23. a hinge part;

3. an end button assembly;

31. an end button mounting seat;

32. an end button body; 321. the output shaft is sleeved with the end; 322. a clamping part;

33. an end cap; 331. end cap side walls;

34. a telescopic cap spring;

35. a telescoping cap; 351. limiting waist-shaped holes;

36. a first bearing;

37. limit pins;

38. a second bearing;

m, third bearing.

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The claims hereof are to be read in further detail with reference to specific embodiments and to the accompanying drawings, in which the embodiments described are only some, but not all embodiments of the invention. Based on the embodiments of the present invention, one of ordinary skill in the art would be able to devise all other embodiments that are obtained without inventive effort and that are within the scope of the present invention.

It should be understood that, in the embodiments of the present invention, all directional terms, such as "upper", "lower", "left", "right", "front", "rear", etc., are used for convenience in describing the present invention only and are not intended to be limiting, since the directional terms, such as "upper", "lower", "left", "right", "front", "rear", etc., are based on the orientation, positional relationship shown in the drawings or the orientation or positional relationship in which the inventive product is conventionally put in use. Merely to explain the relative positional relationship, movement, etc. between the components shown in the drawings, the directional indication may be changed when the specific posture is changed.

Furthermore, ordinal words such as "first," "second," and the like in the description of the present invention are used for distinguishing purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of technical features indicated. The features defining "first", "second" may be explicit or implicit and at least one of the features. In the description of the present invention, the meaning of "plurality" means at least two, i.e., two or more, unless otherwise specifically defined; the meaning of "at least one" is one or more.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly, and may, for example, be defined as having a relatively fixed positional relationship between components, as having a physically fixed connection between components, as being detachably connected, or as a unitary structure; the connection can be mechanical connection or electric signal connection; can be directly connected or indirectly connected through intermediate media or components; the communication between two elements or the interaction relationship between two elements is not limited by the specification, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to the specific circumstances except that the corresponding function or effect cannot be achieved when other understanding is made.

The invention, if related to a controller, a control circuit is a control technology or a unit conventional to a person skilled in the art, and the control circuit of the controller can be implemented by a person skilled in the art by adopting existing, such as simple programming. The software or program for realizing the control result in cooperation with the hardware is used as the conventional technology of the prior art or the person skilled in the art if the description does not show the control process of the related software or program in detail. The power supply also adopts the prior art in the field, and the main technical point of the invention is to improve the mechanical device, so the invention does not describe specific circuit control relation and circuit connection in detail.

The disclosure of the present invention provides many different embodiments or examples for implementing different structures of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described herein. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.

The following will describe the aspects of the present application in detail with reference to the accompanying drawings.

The invention mainly solves the technical problem of providing a detachable electric driving device, and aims to solve the problems of troublesome disassembly and assembly in the maintenance process of the driving motor of the existing cleaning machine.

In order to solve the above-mentioned problems, referring to fig. 1 to 4 and 13, the present invention provides a detachable electric driving device 100, which is installed between two opposite sidewalls of a cleaning head housing 201, the detachable electric driving device 100 comprises: an electric drive assembly 1, a hinge 2 and a terminal button assembly 3; the electric drive assembly 1 comprises an electric connection end 1a and a rotation output end 1b, wherein the rotation output end is provided with an output shaft 14 which is driven to rotate by electricity; one end of the hinge member 2 is detachably and electrically connected with the power receiving end 1a of the electric driving assembly 1, and the other end of the hinge member is used for being hinged with a motor fixing part 2011 arranged on one side wall of the cleaning head shell 201; the end button assembly 3 comprises an input end (not shown in the drawings) and a clamping end (not shown in the drawings), the input end is coupled with a rotation output end 1b of the electric drive assembly 1, the clamping end is used for driving a cleaning roller 202 of the cleaning machine 200 to rotate on one hand, and is clamped with the other side wall of the cleaning head shell 201 on the other hand and has an active stroke along the axial direction of the electric drive assembly 1, and during maintenance, the electric drive assembly 1 can be quickly separated from the hinge 2 at the position of the electric connection end 1 a.

It should be noted that, the outer contour of the electric driving assembly 1 is not limited to a cylindrical shape, but may be a prismatic cylindrical shape, for example, a hexagonal cylindrical shape, the conductive portion (not shown in the drawing) inside the hinge 2 may be a conductive pin, the electrical connection end 1a of the electric driving assembly 1 is correspondingly provided with a conductive jack and a conductive pin to be used in cooperation, when the conductive portion of the hinge 2 is allowed to be also provided with a conductive clip, the electrical connection end 1a of the electric driving assembly 1 is correspondingly provided with a conductive connection set up electrical connection post and a conductive clip to be used in cooperation. The coupling of the input end of the end button assembly 3 to the rotational output end 1b of the electric drive assembly 1 may be achieved by a coupling or by a key-pin fit. The output end of the end button assembly 3 may be configured into a fin shape, and the fin shape cooperates with the cleaning roller 202 to drive the cleaning roller 202 to rotate, and the clamping end may be configured with a compression spring and a limiting structure to realize the movable stroke along the axial direction of the electric driving assembly 1.

The invention has the main beneficial effects that: according to the detachable electric driving device 100 provided by the invention, the hinge 2 is detachably arranged at the power-receiving end 1a of the electric driving component 1 of the detachable electric driving device 100 and is hinged with the motor fixing part 2011 arranged at one end of the cleaning head shell 201 through the hinge 2, and the rotary output end 1b is provided with the end button component 3 with the axial movable stroke along the electric driving component 1 so as to drive the cleaning roller 202 to rotate the electric driving component 1; so that the cleaning machine 200 composed of the detachable electric driving device 100 can realize the motor disassembly and assembly by only taking down the cleaning roller 202 after pressing the end button assembly 3 when the cleaning machine 200 drives the motor 12 to repair and disassemble, and the motor lead wire and the welding motor lead wire do not need to be cut off, so that the repair and disassembly and assembly process is more convenient.

In a specific embodiment, as shown in fig. 3 and 13 to 16, the hinge 2 comprises: a socket part 21, a plug 22 and a hinge part 23; the sleeving part 21 is sleeved with the power-receiving end 1a of the electric drive assembly 1; the plug 22 is arranged in the middle of the socket part 21 and is matched with the electric connector 15 arranged at the electric connection end 1a of the electric drive assembly 1; the hinge part 23 is disposed at the back of the sleeve part 21 and is used for hinging with the motor fixing part 2011.

It should be noted that the outer diameters of the socket portion 21 and the hinge portion 23 may be the same or different, and the outer diameter of the hinge portion 23 is smaller than the outer diameter of the socket portion 21 in this embodiment for easy installation. The hinge 2 is divided into the sleeve joint part 21 and the hinge part 23, so that the plug 22 arranged at the sleeve joint part 21 can be well separated from the hinge area, the power connection area of the plug 22 is prevented from being polluted by the hinge area in contact with the external connection, and the cleanliness of the power connection area of the plug 22 is ensured to a certain extent.

In a specific embodiment, the detachable electric driving device 100 further includes a hinged end sealing plug 11 mounted on the electric connection end 1a, and the electric connector 15 is disposed through a middle portion of the hinged end sealing plug 11.

In order to ensure the dustproof and waterproof properties inside the electric drive assembly 1, as shown in fig. 3, 8, 9, 14 and 15, the detachable electric drive device 100 further includes: a hinged end sealing plug 11, wherein the hinged end sealing plug 11 is arranged at an electric connection end 1a of the electric drive assembly 1; the electric connector 15 is arranged in the middle of the hinged end sealing plug 11. The arrangement of the hinged end sealing plug 11 not only facilitates the arrangement of the electric connector 15 at the electric connection end 1a of the electric drive assembly 1, but also can prevent dust and water from entering the electric drive assembly 1 from the electric connection end 1a of the tubular electric drive device. The material of the hinged end seal needs to be an insulating material, such as insulating rubber.

In a specific embodiment, referring to fig. 9, 14 and 15, the hinged end sealing plug 11 includes a sealing plug sealing portion 112 and a sealing plug sleeving portion 111, the sealing plug sleeving portion 111 is in sealing sleeving connection with the sleeving portion 21 of the hinge 2, the sealing plug sealing portion 112 is in sealing connection with the inner wall of the housing of the electric driving assembly 1, and the sealing plug sleeving portion 112 is in sleeving connection with the sleeving portion 21. The sealing connection can be threaded connection, bonding and clamping by using a sealing ring, and in the embodiment of the invention, the clamping by using the sealing ring is adopted. The above arrangement of the hinge end sealing plug 11 facilitates the connection of the hinge 2 to the body of the electric drive assembly 1 and has a good coaxiality.

In a specific embodiment, as shown in fig. 4, 8 to 10, 14, 15 and 17, the electric drive assembly 1 further comprises: the heat conduction protection cylinder 10, the driving motor 12, the reduction gearbox assembly 13 and the output shaft 14 are accommodated in the heat conduction protection cylinder and are sequentially coupled. The heat-conducting protection cylinder 10 is preferably made of metal, and the heat-conducting protection cylinder 10 can be directly attached to the driving motor 12 shell, or can be used for radiating heat of the driving motor 12 shell through the heat-conducting protection cylinder 10 between the heat-conducting silicone grease filling gaps. Each unit of the electric drive assembly 1 is accommodated in the heat conduction protection cylinder 10, so that each unit of the electric drive assembly 1 is well ensured not to be polluted by dust and water vapor, and the reliability of each unit of the electric drive assembly 1 is improved.

In a specific embodiment, as shown in fig. 8, 10, 14, and 15, an output end sealing plug 141 is disposed on the inner wall of the heat conduction protection cylinder 10 at a position corresponding to the periphery of the output shaft 14, the middle of the output end sealing plug 141 is disposed through, the output shaft 14 passes through a through hole (not shown in the drawing) in the middle of the output end sealing plug 141, a gap is left between the through hole and the outer edge of the output shaft 14, and a sealing ring (not shown in the drawing) is clamped in one end of the through hole away from the reduction gearbox assembly 13, where the sealing ring and the output shaft 14 can realize sealing that the two can rotate relatively. The provision of the output sealing plug 141 further ensures the dust-proof and water-proof properties of the electric drive assembly 1.

In one embodiment, as shown in fig. 4, 8, 10, and 13 to 17, the end button assembly 3 includes: the end button mounting seat 31, the end button body 32, the end cap 33, the telescopic cap spring 34 and the telescopic cap 35; one end of the end button mounting seat 31 is sleeved on the periphery of the output shaft 14 and detachably connected with the output end sealing plug 141, the outer edge of the other end is clamped on the end opening of the heat conduction protection cylinder 10, and the middle part of the end button mounting seat 31 is arranged in a penetrating way; the outer edge of the end button body 32 is clamped to the inner wall of one end of the cleaning roller 202 through a clamping part 322, the middle part of the end button body 32 is arranged in a penetrating manner, the end button body 32 comprises an output shaft sleeved end 321 and a containing end (not shown in the drawing), the sleeved end 321 is sleeved and mounted on the rotating end of the output shaft 14, the containing end is provided with a mounting groove (not shown in the drawing), the periphery of the mounting groove is provided with a clamping part 322 for driving the cleaning roller to rotate, and the clamping part 322 is used for driving the cleaning roller 202 of the cleaning machine 200 to rotate; one end of the telescopic end cap 35 is sleeved on the mounting groove and is limited by a limiting structure between the mounting groove and the telescopic end cap 35, the other end of the telescopic end cap outwards extends towards the direction deviating from the electric drive assembly 1 to form a protrusion, the outer edge of the protrusion is in transition fit with the inner ring of the first bearing 36, and the end of the protrusion is fastened by a gasket through a screw to limit the first bearing 36; the telescopic cap spring 34 is clamped between the telescopic cap 35 and the end button mounting seat 31 so that the telescopic cap 35 extends out of the mounting groove; the end cap 33 has an opening at one end and a closed end, the opening end is sleeved on the outer ring of the first bearing 36, the outer edge of the end cap 33 is clamped on a 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 backwards in the mounting groove after being pressed.

When in use, the end button body 32 is driven to rotate by the output shaft 14 of the electric drive assembly 1, and the clamping part 322 of the end button body 32 is clamped with the drive coupling end 202A at one end of the cleaning roller 202 of the cleaner 200 to drive the cleaning roller 202 to rotate; the driven end 202B of the other end of the cleaning roller 202 may be rotatably mounted to a mounting structure provided on the cleaning head housing 201, for example, may be rotatably mounted to the outer periphery of the motor fixing portion 2011. The locking portion 322 may be configured with a fin-shaped structure that matches with a locking groove formed on the inner wall of the roller assembly 202. When the detachable electric driving device 100 needs to be detached, the end cap 33 is only pressed, and the end cap 33 pushes the telescopic cap 35 to retract, so that the detachable electric driving device can be detached from the clamping position of the cleaning head shell 201 conveniently.

In this embodiment, referring to fig. 7, 8 and 10, the outer edges of the end cap 33 and the card interface 2012 of the cleaning head housing 201 are circular, so that in practical use, the end cap 33 and the card interface 2012 do not rotate relative to each other, and the circular shape is merely provided for quick engagement without limitation of direction and angle. Of course, the outer edge shapes of the end cap 33 and the card interface 2012 may be triangular, rectangular, pentagonal, hexagonal, heptagonal, or other regular polygons as required, as long as the shapes of the two can be engaged with each other and do not need to rotate.

In a specific embodiment, as shown in fig. 8, 10, 14 and 15, the limiting structure includes a limiting waist-shaped hole 351 and a limiting pin 37, the limiting waist-shaped hole 351 is opened on the side wall of the telescopic cap 35 along the telescopic direction of the telescopic cap 35, and the limiting pin 37 is inserted through the side wall of the mounting groove to limit the limiting waist-shaped hole 351. The cooperation setting of spacing pin 37 with spacing waist type hole 351 makes flexible cap 35 be difficult for popping out from cleaning head casing 201 and drops, has strengthened the reliability of end cap 33 when using, more importantly, spacing pin 37 with spacing waist type hole 351's cooperation setting has limited flexible stroke of flexible cap 35 under flexible cap spring 34 effect.

In a specific embodiment, the outer circumference of the output shaft sleeve end 321 of the end button body 32 is sleeved with a second bearing 38, the inner ring of the second bearing 38 is in transition fit with the outer circumference of the output shaft sleeve end 321 of the end button body 32, and the outer ring of the second bearing 38 is in transition fit with the end button mounting seat 31. A second bearing 38 is arranged between the end button mounting seat 31 and the output shaft sleeving end 321 of the end button body 32, and the second bearing 38 is matched with a first bearing 36 arranged between the telescopic cap 35 and the end cap 33, and the two groups of coaxially arranged bearings can enable the rotating part of the whole end button assembly 3 to run more stably under high-speed rotation.

In a second aspect, as shown in fig. 4 and 7 to 10, the present invention further provides a cleaning machine 200, where the cleaning machine 200 includes a cleaning head housing 201, a cleaning roller 202, and the detachable electric driving device 100 according to the first aspect, the cleaning head housing 201 has a motor fixing portion 2011, and is hinged to one end of the hinge member 2, and the other end of the hinge member 2 is detachably and electrically connected to the power receiving end 1a of the electric driving assembly 1; the cleaning roller 202 is driven to rotate by the rotation output end 1b of the end knob assembly 3. Since the cleaning machine 200 adopts all the technical solutions of the detachable electric driving device 100 described above, corresponding technical effects are achieved, and further details are omitted.

In a specific embodiment, as shown in fig. 6, 8 and 9, the motor fixing portion 2011 includes a fixing portion body 20111, and a joint accommodating cavity 20112 and a wire harness accommodating cavity 20113 that are formed in the fixing portion body 20111, a pin hole 20114 is formed in a side wall of the joint accommodating cavity 20112, and is used for being matched with a hinge pin 20115 to hinge the corresponding hinge 2, and the wire harness accommodating cavity 20113 is used for allowing a wire harness led out by the hinge 2 to pass through.

In an embodiment, referring to fig. 6, 8 and 9, the fixing portion body 20111 is provided with an annular clearance step 20116 at a position corresponding to the pin hole 20114. The arrangement of the annular clearance step 20116 enables the hinge position of the fixed part body 20111 and the hinge 2 to have a larger movable space, so that inconvenience in rotation when the fixed part body 20111 and the hinge 2 are hinged and rotated when the detachable electric driving device 100 is detached is avoided, and the convenience in detachment is improved.

In a specific embodiment, the outer edge of the hinge portion 23 of the hinge 2 is provided with a bearing mounting step (not shown in the drawing) 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 portion of the inner wall of the cleaning roller 202 located at the hinge portion 23 is in transition fit with the outer ring of the third bearing M. A third bearing M is disposed between the outer edge of the hinge portion 23 of the hinge 2 and the inner wall of the cleaning roller 202, and is matched with a first bearing 36 disposed between the telescopic cap 35 and the end cap 31, and a second bearing 38 disposed between the end button mounting seat 31 and the output shaft socket end 321 of the end button body 32, and the three sets of coaxially disposed bearings can make the rotating portion of the entire cleaning roller 202 operate more stably under high-speed rotation. The inner wall of the cleaning roller 202 is located at one end of the hinge 2 and is rotatably connected with the end button of the third bearing M disposed at the outer edge of the hinge portion 23 of the hinge 2, so that the inner wall of the cleaning roller 202 is rotatably supported at a larger distance, radial runout generated in the rotation process of the inner wall of the cleaning roller 202 is reduced to the maximum extent, and small noise of equipment operation is ensured.

In one embodiment, as shown in fig. 11 and 12, the cleaning roller 202 includes an inner cylinder 2021, an outer cylinder 2022, and a coupling portion 2023. The inner cylinder 2021 and the outer cylinder 2022 can slide mutually, be detached and separated, the outer edge of the inner cylinder is provided with T-shaped reinforcing ribs extending along the axial direction, and the outer cylinder 2022 is provided with matching grooves corresponding to the reinforcing ribs in shape. The reinforcing ribs of the inner tube 2021 and the matching grooves of the outer tube 2022, which are matched with each other, can further improve the output capability of the inner tube 2021 for transmitting torque to the outer tube 2022, and can facilitate the disassembly and maintenance of the two. Further, the outer edge of the outer cylinder 2022 is coated with a sponge layer (not shown in the drawing) capable of wiping the surface to be cleaned, and since the sponge layer needs to wipe the surface to be cleaned on one hand and also needs to bear the extrusion of the squeezing strip (not shown in the drawing) of the cleaning head on the other hand, the sponge layer has a certain loss after a period of use by a user, and when the degree of the loss obviously reduces the cleaning capability of the cleaning machine 200, the sponge layer needs to be replaced. The design that the inner cylinder 2021 and the outer cylinder 2022 can be mutually slid, detached and separated can enable a user to conveniently replace the outer cylinder 2022 only when the cleaning roller 202 needs to be replaced, so that the cost for replacing the whole cleaning roller 202 is reduced. The coupling portion 2023 is disposed at one end of the inner cylinder 2021, the coupling portion 2023 is in interference fit with the inner cylinder 2021, and is not easy to slide and rotate with each other, so that in order to further improve the stability of interference fit between the coupling portion 2023 and the inner cylinder 2021, the coupling portion 2023 and the clamping portion 322 of the end button body 32 can be further bonded, and when the end button body 22 rotates, the coupling portion 2023 is driven to rotate synchronously, and the whole cleaning roller 202 is driven to rotate. The coupling portion 2023 is disposed at one end of the inner cylinder 2021, so that the external rotation driving mechanism can be conveniently coupled to one end of the cleaning roller 202 to drive the whole cleaning roller 202 to rotate.

In a third aspect, the present invention also provides a method of maintaining a removable electric drive apparatus as described in the first aspect, comprising the steps of:

the first step, press the said end button assembly to realize the separation of the said detachable electric drive unit from a sidewall of the said cleaning head shell;

a second step of continuing to rotate the detachable electric driving device around the hinge joint of the motor fixing part until one side of the cleaning roller leaves a side wall of the cleaning head shell;

thirdly, the cleaning roller is pulled out from one side far away from the motor fixing part along the outer surface of the detachable electric driving device, and the cleaning roller is taken down;

holding the motor heat conduction protection cylinder, pulling out the held part of the detachable electric driving device towards the direction deviating from the motor fixing part by force, and separating the held part of the detachable electric driving device from the electric connection end of the hinge piece;

fifthly, the separated held part of the detachable electric driving device is further detached to form a motor heat conduction protection cylinder, a driving motor, a reduction gearbox assembly and an end button assembly;

step six, replacing the corresponding faulty assembly, and then assembling each assembly again to form a part of the detachable electric driving device which is held by the separated assembly, and tightly butting the part with the electric connection end of the hinge piece;

seventhly, pushing the cleaning roller inwards along the outer surface of the detachable electric driving device from the end button assembly end towards the motor fixing part to finish the clamping installation of the cleaning roller on the detachable electric driving device;

eighth, while pressing the end button assembly, the detachable electric driving device which is sleeved with the cleaning roller is continuously rotated around the hinge joint of the motor fixing part until the end button assembly is clamped back to one side wall of the cleaning head shell again.

The foregoing has outlined rather broadly the more detailed description of embodiments of the present application, wherein specific examples have been provided herein to illustrate the principles and embodiments of the present application, and wherein the above examples are provided to assist in the understanding of the methods and concepts of the present application. Meanwhile, based on the ideas of the present application, those skilled in the art can make changes or modifications on the specific embodiments and application scope of the present application, which belong to the scope of the protection of the present application. In view of the foregoing, this description should not be construed as limiting the application.

Claims (15)

1. A detachable electric driving device installed between two opposite side walls of a cleaning head housing for driving a cleaning roller to rotate, comprising:

the electric driving assembly comprises an electric connection end and a rotation output end, and the rotation output end is provided with an output shaft which is driven to rotate by electricity;

one end of the hinge component is detachably and electrically connected with the power-on end, and the other end of the hinge component is hinged with a motor fixing part on one side wall of the cleaning head shell;

the end button assembly comprises an input end and a clamping end, the input end is coupled with the output shaft, the outer edge of the input end is coupled with the cleaning roller and drives the cleaning roller to rotate, and the clamping end is clamped with the other side wall of the cleaning head shell and has a movable stroke along the axial direction of the electric drive assembly;

the electric drive assembly may be quickly separated from the hinge at the power receiving end during maintenance.

2. The detachable electric drive of claim 1, wherein said hinge comprises:

the sleeving part is sleeved with the power-on end of the electric driving assembly;

the plug-in component is arranged in the middle of the sleeving part of the hinge component and is matched with the electric connecting component arranged at the electric connecting end;

and the hinge part is arranged at the back of the sleeving part and is used for being hinged with the motor fixing part.

3. The removable electrical drive of claim 2, further comprising a hinged end seal plug mounted to the electrical terminal, the electrical connector extending through a middle portion of the hinged end seal plug.

4. A removable electrical drive as claimed in claim 3 wherein the hinged end sealing plug comprises a sealing plug sealing portion and a sealing plug socket portion, the sealing plug sealing portion being sealingly connected to the housing inner wall of the electrical drive assembly, the sealing plug socket portion being socket-connected to the socket portion.

5. The detachable electric drive of claim 1 wherein said electric drive assembly further comprises: the heat conduction protection cylinder, the driving motor and the reduction box assembly are accommodated in the heat conduction protection cylinder, and the driving motor, the reduction box assembly and the output shaft are sequentially coupled in the heat conduction protection cylinder.

6. The detachable electric drive unit of claim 5 wherein said thermally conductive protective cylinder inner wall is provided with an output end sealing plug at a location corresponding to the periphery of said output shaft.

7. The detachable electric drive of claim 6 wherein said end button assembly comprises:

one end of the end button mounting seat is sleeved on the periphery of the output shaft and detachably connected with the output end sealing plug, and the outer edge of the other end of the end button mounting seat is clamped on the opening at the end part of the heat conduction protection cylinder;

the middle part of the end button body is arranged in a penetrating way and comprises an output shaft sleeving end and an accommodating end, the sleeving end is sleeved and arranged at the rotating end of the output shaft, the accommodating end is provided with an installation groove, and the periphery of the installation groove is provided with a clamping part for driving the cleaning roller to rotate;

one end of the telescopic cap is sleeved on the mounting groove and is limited by a limiting structure between the mounting groove and the end cap, the other end of the telescopic cap is provided with a bulge deviating from the mounting groove, and the outer edge of the bulge is in transition fit with the inner ring of the first bearing;

the telescopic cap spring is clamped between the end cap and the end button mounting seat so that the end cap extends out of the mounting groove;

and one end of the end cap is sleeved on the outer ring of the first bearing, and the other end of the end cap is clamped with one side wall of the cleaning head shell.

8. The detachable electric drive of claim 7 wherein the limit structure comprises a limit waist-shaped hole and a limit pin, the limit waist-shaped hole is formed in the side wall of the end cap along the extension and retraction direction of the end cap, and the limit pin is arranged on the side wall of the mounting groove in a penetrating manner so as to limit the limit waist-shaped hole.

9. The detachable electric drive of claim 7 wherein said end button body is provided with a second bearing around the outer circumference of said end button body, said second bearing inner race is in transition fit with said end button body around the outer circumference of said end button body, and said second bearing outer race is in transition fit with said end button mount.

10. A cleaning machine comprising a cleaning head housing, a cleaning roller and a removable electric drive according to any one of claims 1 to 9;

a motor fixing part is arranged on one side wall of the cleaning head shell and hinged with one end of the hinge piece, and the other end of the hinge piece is detachably and electrically connected with the power-receiving end of the electric drive assembly;

the cleaning roller is driven to rotate by the clamping end of the end button assembly.

11. The cleaning machine of claim 10, wherein the motor fixing portion includes a fixing portion body, and a hinge head accommodating cavity and a wire harness accommodating cavity which are formed in the fixing portion body, wherein a pin hole is formed in a side wall of the hinge head accommodating cavity, the pin hole is used for being matched with a hinge pin to hinge the corresponding hinge member, and the wire harness accommodating cavity is used for allowing a wire harness led out by the hinge member to pass through.

12. The cleaning machine of claim 11 wherein said fixed portion body has an annular clearance step at a location corresponding to said pin hole.

13. The cleaning machine of claim 10 wherein the outer edge of the hinge portion of the hinge member is provided with a bearing mounting step for mounting a third bearing, the inner race of the third bearing is in transition fit with the bearing mounting step, and the inner wall of the cleaning roller at the second end of the hinge member is in transition fit with the outer race of the third bearing.

14. The cleaning machine of claim 10 wherein said cleaning roller comprises an inner cylinder, an outer cylinder, and a coupling; the inner cylinder and the outer cylinder can slide mutually, be disassembled 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; the outer edge of the outer cylinder is coated with a sponge layer which can wipe the surface to be cleaned.

15. A method of maintaining a removable electric drive as claimed in any one of claims 1 to 9, comprising:

the first step, press the said end button assembly to realize the separation of the said detachable electric drive unit from a sidewall of the said cleaning head shell;

a second step of continuing to rotate the detachable electric driving device around the hinge joint of the motor fixing part until one side of the cleaning roller leaves a side wall of the cleaning head shell;

thirdly, the cleaning roller is pulled out from one side far away from the motor fixing part along the outer surface of the detachable electric driving device, and the cleaning roller is taken down;

holding the motor heat conduction protection cylinder, pulling out the held part of the detachable electric driving device towards the direction deviating from the motor fixing part by force, and separating the held part of the detachable electric driving device from the electric connection end of the hinge piece;

fifthly, the separated held part of the detachable electric driving device is further detached to form a motor heat conduction protection cylinder, a driving motor, a reduction gearbox assembly and an end button assembly;

step six, replacing the corresponding faulty assembly, and then assembling each assembly again to form a part of the detachable electric driving device which is held by the separated assembly, and tightly butting the part with the electric connection end of the hinge piece;

seventhly, pushing the cleaning roller inwards along the outer surface of the detachable electric driving device from the end button assembly end towards the motor fixing part to finish the clamping installation of the cleaning roller on the detachable electric driving device;

eighth, while pressing the end button assembly, the detachable electric driving device which is sleeved with the cleaning roller is continuously rotated around the hinge joint of the motor fixing part until the end button assembly is clamped back to one side wall of the cleaning head shell again.