Cleaning roller assembly

Abstract

The invention discloses a cleaning roller assembly which is installed in a cleaning head shell of a cleaning head of a scrubber, the cleaning roller assembly is connected to an electric driving assembly in a sleeved mode, one end of the electric driving assembly is installed on a first side plate of the cleaning head shell, the electric driving assembly is provided with an output shaft, and a brush assembly is further connected between two pairs of side walls of the cleaning head shell in a bridging mode. The cleaning roller assembly comprises a roller assembly and an end button assembly, the roller assembly comprises an inner cylinder and an outer cylinder which is located on the outer surface of the inner cylinder and formed by PVA materials in a foaming mode, and the output shaft drives one end of the inner wall of the inner cylinder in a coupling mode so as to synchronously drive the roller assembly to rotate. The end button assembly and the brush assembly are coupled through a transmission assembly arranged on the cleaning head shell so as to rotate synchronously, and the roller assembly and the end button assembly rotate synchronously. The motor of the cleaning roller assembly can drive the brush assembly to rotate while driving the roller assembly to rotate, so that the standby time of the scrubber is prolonged, and the working noise of the scrubber can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning equipment, and in particular to a cleaning roller assembly. Background Art

[0002] With the improvement of people's living and consumption levels, floor cleaning equipment has been favored by more and more families. In recent years, a variety of cleaning equipment has appeared on the market, such as floor scrubbers, sweeping robots, etc. Take floor scrubbers as an example. Floor scrubbers include a roller assembly for cleaning floor garbage and a cleaning brush assembly for cleaning garbage attached to the roller assembly. In current floor scrubber products, the roller assembly and the cleaning brush assembly are driven by different motors. When the floor scrubber is working, the roller and the brush assembly work synchronously. The dual motors will generate greater noise when working at a synchronous high speed. At the same time, the dual motors will also reduce the standby time of the floor scrubber. Summary of the invention

[0003] The main technical problem solved by the present invention is to provide a cleaning roller assembly, which can allow the cleaning roller assembly to simultaneously drive the brush sweeping assembly to brush the surface of the cleaning roller assembly itself while scrubbing and sweeping the surface to be cleaned, thereby further reducing the power of the cleaner itself. On the other hand, the width dimension of the cleaning head of the cleaner can be fully utilized, so that the cleaning roller assembly can cover the width dimension of the cleaning head as much as possible in the axial dimension, thereby improving the cleaning efficiency of the single forward and backward cleaner.

[0004] In order to solve the above problems, the present invention provides a cleaning roller assembly, which is installed in a cleaning head housing of a floor scrubber and sleeved on a motor whose one end is installed on a first side plate of the cleaning head housing. The motor has an output shaft, and a brush assembly is also bridged between two pairs of side walls of the cleaning head housing. The cleaning roller includes:

[0005] The roller assembly comprises an inner cylinder and an outer cylinder formed by foaming PVA material on the outer surface of the inner cylinder, wherein the output shaft is coupled to drive one end of the inner wall of the inner cylinder, thereby synchronously driving the roller assembly to rotate;

[0006] The end button assembly is coupled with the brush assembly through a transmission assembly arranged on the cleaning head housing to rotate synchronously;

[0007] Wherein, the roller assembly and the end button assembly rotate synchronously.

[0008] In one or some optional embodiments, the terminal button assembly is detachably connected to the first gear, the transmission assembly includes the first gear and a second gear transmission-connected to the first gear, and the second gear is transmission-connected to the brush assembly.

[0009] In one or some optional embodiments, the terminal button assembly includes an input end and a clamping end, the input end is coupled to the motor drive output end, a portion of the outer edge of the clamping end is sleeved with the first gear, a portion of the outer edge of the clamping end is clamped with the second side plate of the cleaning head shell, and the terminal button assembly has a movable stroke along the axial direction of the motor.

[0010] In one or some optional embodiments, the end button assembly is coupled to one end of the inner wall of the inner cylinder, and the end button assembly rotates synchronously with the rotation of the drum assembly.

[0011] In one or some optional embodiments, the transmission assembly further comprises a third gear detachably fixedly connected to the brush body of the brush assembly, and the third gear is transmission-connected to the second gear.

[0012] In one or some optional embodiments, the end button assembly includes the first gear and an elastic member; the first gear is sleeved on one end of the elastic member, and the elastic member is detachably fixedly connected to the roller assembly in the inner cavity of the roller assembly.

[0013] In one or some optional embodiments, the elastic member includes a rotating shaft, a spring and a sleeve; the sleeve is provided with a central shaft hole with two openings, one large and one small, running through it; one end of the rotating shaft passes through the central shaft hole of the sleeve; a first stopper is provided on the outer side of the other end of the rotating shaft; the spring is sleeved on the rotating shaft and is located on the side of the first stopper away from the first gear; one end of the spring abuts against the small opening end of the sleeve.

[0014] In one or some optional embodiments, the end of the rotating shaft is fixedly connected to an end cap, which is sleeved on the side of the first stopper close to the first gear and abuts against the roller assembly in the inner cavity of the roller assembly. The end with the largest diameter of the end cap closes the large opening end of the sleeve, and the other end of the end cap passes through the first gear.

[0015] In one or some optional embodiments, a second stopper is provided on the outer edge wall of one end side of the end cap abutting against the first gear, and a first copper sleeve is provided between the first gear and the second stopper, and the first copper sleeve is fixed on the inner layer of the second side plate during the injection molding process of the cleaning head shell.

[0016] In one or some optional embodiments, a second copper sleeve is provided on the side of the first gear away from the second stopper, and the second copper sleeve is fixed on the outer layer of the second side plate. When working, the first gear is confined between the first copper sleeve and the second copper sleeve.

[0017] In one or some optional embodiments, a detachable shaft cover is provided on one end of the rotating shaft close to the first gear, and the shaft cover is detachably fixed to the large opening end inside the shaft sleeve, and the other end of the spring abuts against the shaft cover.

[0018] In one or some optional embodiments, the elastic member comprises:

[0019] A terminal button mounting seat, one end of which is sleeved on the outer periphery of the output shaft and detachably connected to the output end sealing plug, and the outer edge of the other end is clamped on the end opening of the heat conductive protection tube of the motor;

[0020] The end button body has a through-through arrangement in the middle, and includes a sleeve end and a receiving end, wherein the sleeve end is sleeved and installed on the rotating end of the output shaft, the receiving end has an output shaft sleeve end, and the outer periphery of the output shaft sleeve end has a clamping portion for driving the cleaning roller to rotate;

[0021] A telescopic cap, one end of which is sleeved on the output shaft sleeve end and is limited by a limiting structure between the output shaft sleeve end and the end cap;

[0022] A telescopic cap spring, sandwiched between the end cap and the end button mounting seat so that the end cap extends out of the output shaft sleeve end;

[0023] An end cap has one end sleeved on the end of the telescopic cap and the other end sleeved on the inner ring of the first gear.

[0024] 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 opened on the side wall of the end cap along the telescopic direction of the end cap, and the limiting pin is penetrated through the side wall of the output shaft sleeve end to limit the limiting waist-shaped hole.

[0025] In one or some optional embodiments, a bearing is sleeved on the outer periphery of the sleeve end of the terminal button body, the inner ring of the bearing is transitionally matched with the outer periphery of the sleeve end of the terminal button body, and the outer ring of the bearing is transitionally matched with the terminal button mounting seat.

[0026] In one or some optional embodiments, the roller assembly also includes an inner sleeve that can be inserted into the inner cylinder from one end and a coupling piece detachably connected to the inner surface of one end of the inner sleeve, and the clamping portion of the terminal button body is coupled to the coupling piece to drive the inner sleeve, and the rotation of the inner sleeve drives the inner cylinder to rotate, thereby synchronously driving the roller assembly to rotate.

[0027] Beneficial effects of the present invention:

[0028] 1. The cleaning roller assembly provided by the present invention is installed in the housing of the cleaning head of the floor scrubber, and is sleeved on a motor installed at one end on the first side plate of the cleaning head housing. The motor has an output shaft, and a brush assembly is also bridged between the two pairs of side walls of the cleaning head housing. The cleaning roller includes a roller assembly and a terminal assembly. The roller assembly includes an inner cylinder and an outer cylinder foamed and molded by PVA material on the outer surface of the inner cylinder. The output shaft is coupled to drive one end of the inner wall of the inner cylinder, thereby synchronously driving the roller assembly to rotate; the terminal assembly and the brush assembly are coupled to rotate synchronously through a transmission assembly arranged in the cleaning head housing; wherein, the roller assembly and the terminal assembly rotate synchronously. The motor can make the brush assembly rotate synchronously with the roller assembly through the transmission assembly only when driving the roller assembly to rotate, thereby increasing the standby time of the floor scrubber without increasing the volume of the floor scrubber, and at the same time reducing the noise of the floor scrubber in the working state.

[0029] 2. In the cleaning roller assembly provided by the present invention, the output shaft of the motor is coupled to drive one end of the inner wall of the inner cylinder of the roller assembly, thereby synchronously driving the roller assembly to rotate, and its end button assembly has an axial movable stroke along the motor, so that when the cleaning roller is repaired and disassembled for the cleaning machine driving motor, the roller assembly can be pulled out from the electric driving assembly by pressing the end button assembly, and then the driving motor can be further disassembled and installed, which makes it convenient to repair and disassemble the driving motor sleeved in the cleaning roller.

[0030] 3. The cleaning roller assembly provided by the present invention has an end button body of the end button assembly driven to rotate by the output shaft of the electric drive assembly, and the clamping portion of the end button body is clamped with one end of the roller assembly of the cleaning machine to drive the roller assembly to rotate; the end button assembly has an axial movable stroke along the motor. When it is necessary to disassemble and maintain the electric drive device sleeved in the cleaning roller, it is only necessary to press the end cap of the end button assembly, and the end cap pushes the telescopic cap of the end button assembly to retract and the end button assembly can be removed from the clamping position of the cleaning head shell, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without exceeding the scope of protection required by the present application.

[0032] Figure 1 The present invention is a three-dimensional diagram of a cleaning head of a floor scrubber equipped with a cleaning roller assembly of the present invention.

[0033] Figure 2 A three-dimensional view from another perspective of a floor scrubber cleaning head equipped with the cleaning roller assembly of the present invention.

[0034] Figure 3 An exploded view of a floor scrubber cleaning head equipped with the cleaning roller assembly of the present invention.

[0035] Figure 4 This is a stereoscopic diagram of an embodiment of a cleaning roller assembly of the present invention.

[0036] Figure 5 An exploded planing view of an embodiment of a cleaning roller assembly of the present invention.

[0037] Figure 6 It is an exploded view of an embodiment of a cleaning roller assembly of the present invention.

[0038] Figure 7 for Figure 2 A-axis planing view.

[0039] Figure 8 for Figure 7 A partial enlarged view of point B in the middle.

[0040] Fig. 9 This is a plan view of an embodiment of a cleaning roller assembly of the present invention.

[0041] Fig.10 A planing view of another embodiment of a floor scrubber cleaning head equipped with a cleaning roller assembly of the present invention.

[0042] Fig.11 for Fig.10 A partial enlarged view of point C in the middle.

[0043] Fig.12 This is a plan view of another embodiment of the cleaning roller assembly of the present invention.

[0044] Fig.13 A floor-cleaning roller planer diagram of another embodiment of the cleaning roller assembly of the present invention.

[0045] Fig.14 This is an exploded view of a wiping roller of another embodiment of the cleaning roller assembly of the present invention.

[0046] Fig.15 It is a front view of a motor assembly of another embodiment of a cleaning roller assembly of the present invention.

[0047] Description of reference numerals:

[0048] 100. Cleaning roller assembly;

[0049] 40. Cleaning head;

[0050] 401, cleaning head housing; 402, first side plate; 403, second side plate; 4031, second side plate inner layer; 4032, second side plate outer layer; 4033, transmission assembly cover plate;

[0051] 1. Electric drive assembly; 1A. Motor; 1a. Speed ​​reducer; 1b. Output shaft; 1c. Output end sealing plug; 1d. Terminal mounting seat; 1e. Hinge pin; 1f. Motor fixing part; 1g. Thermal protection tube;

[0052] 10. Roller assembly; 101. Inner cylinder; 102. Outer cylinder; 103. Inner sleeve; 104. Coupling piece;

[0053] 12. Terminal button assembly;

[0054] 120, bushing;

[0055] 121, first gear;

[0056] 122, elastic member; 1221, rotating shaft; 12211, first stopper; 1222, spring; 1223, button; 12231, second stopper; 1224, shaft cover; 1226, screw; 1225, first copper sleeve; 1227, second copper sleeve;

[0057] 201, second gear member; 301, brush body; 302, third gear member;

[0058] 3. Driving end button assembly;

[0059] 3A, elastic parts;

[0060] 32. terminal button body; 321. clamping part;

[0061] 33. end cap; 331. driving tooth;

[0062] 35. Telescopic cap;

[0063] 36. Limit waist hole;

[0064] 37. Limit pin;

[0065] 38. Screws;

[0066] 39. Spring;

[0067] M, first bearing;

[0068] N, second bearing;

[0069] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0070] The claims of the present invention are further described in detail below in conjunction with specific embodiments and drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments proposed by ordinary technicians in this field before making creative work also fall within the scope of protection of the present invention.

[0071] It should be understood that, in the description of the embodiments of the present invention, all directional indication terms, such as "up", "down", "left", "right", "front", "back", etc., indicate the orientation or position relationship based on the orientation, position relationship shown in the drawings or the orientation or position relationship in which the invented product is usually placed when in use, which is only for the convenience of simplifying the description of the present invention, and does not expressly or imply that the device, element or component referred to must have a specific orientation and a specific orientation structure, and should not be understood as a limitation on the present invention. It is only used to explain the relative position relationship, movement, etc. between the components shown in the drawings. When the specific posture changes, the directional indication may also change accordingly.

[0072] In addition, ordinal numbers such as "first" and "second" in the present invention are only used for the purpose of distinction, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. The features defined as "first" and "second" can explicitly or implicitly indicate at least one of the technical features. In the description of the present invention, "multiple" means at least two, that is, two or more, unless otherwise clearly defined; "at least one" means one or one and more.

[0073] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, the positional relationship between components can be relatively fixed, or the components can be physically fixedly connected; they can be detachably connected or integrated; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium or component; they can be internally connected between two elements or interact with each other. Unless otherwise clearly defined in the specification, other interpretations may not achieve the corresponding functions or effects. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] The controller and control circuit involved in the present invention are conventional control technologies or units of those skilled in the art. For example, the control circuit of the controller can be realized by ordinary technicians in the field using existing technologies, such as simple programming. If the software or program involved in the control result is not described in detail, it belongs to the use of existing technologies or conventional technologies of ordinary technicians in the field. The power supply also uses the existing technologies in the field, and the main technical point of the present invention is to improve the mechanical device, so the present invention will not describe the specific circuit control relationship and circuit connection in detail.

[0075] The disclosure of the present invention provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described in the present invention. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0076] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0077] The solution of the present application will be described in detail below with reference to the accompanying drawings.

[0078] As analyzed in the background technology of this application, the existing floor scrubbers have a short standby time and make a lot of noise. In order to solve the above technical problems, this application provides a cleaning roller.

[0079] Embodiment 1:

[0080] like Figures 1 to 9As shown, a cleaning roller assembly 100 is installed in a cleaning head shell 401 of a floor scrubber cleaning head 40. The cleaning roller assembly 100 is sleeved on an electric drive assembly 1 installed at one end on a first side plate of the cleaning head shell. The electric drive assembly 1 has an output shaft 1b. A brush assembly (not shown in the drawings) is also bridged between two pairs of side walls (402, 403) of the cleaning head shell 401. The cleaning roller assembly 100 includes a roller assembly 10 and an end button assembly 12. The roller assembly 10 includes an inner cylinder 101 and an outer cylinder 102 foamed with PVA material (Polyvinyl alcoho, English abbreviation: PVA, chemical name: polyvinyl alcohol) on the outer surface of the inner cylinder. The output shaft 1b is coupled to drive one end of the inner wall of the inner cylinder 101, thereby synchronously driving the roller assembly 10 to rotate; the end button assembly 12 and the brush assembly are coupled to rotate synchronously through a transmission assembly 20 arranged on the cleaning head shell; wherein, the roller assembly 10 and the end button assembly 12 rotate synchronously.

[0081] Specifically, Figures 1 to 7 As shown, the cleaning roller assembly 100 is installed in the cleaning head housing 401 of the floor scrubber cleaning head 40, and the electric drive assembly 1 is fixed to the first side plate 402 of the cleaning head housing 401 through the motor fixing portion 1f. Figure 6 , Figure 7 As shown, the electric drive assembly 1 includes a motor 1A that provides power for the cleaning roller 100 and can drive the output shaft 1b to rotate, a heat-conducting protection tube 1g, a hinge (not marked in the figure), a motor fixing part 1f, and a hinge pin 1e for hingedly connecting the motor fixing part 1f and the hinge, wherein the heat-conducting protection tube 1g seals the hinge and the motor 1A in the hollow cavity of the heat-conducting protection tube 1g in sequence, the output shaft 1b rotates under the drive of the motor 1A, and is coupled to the coupling part 1011 of the inner tube 101 to rotate, the end button assembly 12 is snap-fitted with the inner tube 101 to rotate synchronously, and the end button assembly 12 further drives the transmission assembly 20 to realize the synchronous rotation of the brush assembly. A first bearing M is sleeved on the outer edge of one end of the hinge of the electric drive component 1 close to the motor 1A, and the outer ring of the first bearing M is sleeved on the inner wall of the inner cylinder 101 corresponding to the end of the hinge of the electric drive component 1 close to the motor 1A. The inner cylinder 101 rotates under the drive of the motor 1A of the electric drive component 1, so that the first bearing M can provide rotatable and stable support for the inner cylinder 101 at the supporting point of the hinge, so that the roller assembly 10 of the cleaning roller assembly 100 can rotate more smoothly.

[0082] The beneficial effects of the present invention are as follows: the cleaning roller assembly 100 is sleeved on the electric drive assembly 1 installed on a side plate of the cleaning head housing 401, the cleaning roller assembly 100 includes a roller assembly 10 and a terminal assembly (12, 3), the roller assembly 10 includes an inner cylinder 101 and an outer cylinder 102, the output shaft 1b of the electric drive assembly 1 is coupled to drive one end of the inner wall of the inner cylinder 101, thereby synchronously driving the roller assembly 10 to rotate, the roller assembly 10 and the terminal assembly (12, 3) rotate synchronously, and the terminal assembly (12, 3) and the brush assembly are coupled to rotate synchronously through the transmission assembly 20 arranged on the cleaning head housing. The motor 1A of the electric drive assembly 1 can only drive the roller assembly 10 to rotate, and the brush assembly can be synchronously rotated with the roller assembly 10 through the transmission assembly 20, thereby increasing the standby time of the floor scrubber without increasing the volume of the floor scrubber, and at the same time, reducing the noise of the floor scrubber in the working state.

[0083] In some embodiments, Figure 3 , Figure 6 As shown, the terminal assembly 12 is detachably connected to the first gear 121, and the transmission assembly 20 includes the first gear 121 and a second gear 201 transmission-connected to the first gear 121, and the second gear 201 is transmission-connected to the brush assembly. Through the transmission function of the transmission assembly 20, the power of the motor 1A built into the electric drive assembly 1 to which the cleaning roller 100 is sleeved can be moved a certain distance in a direction parallel to the axis of the motor 1A, so as to transmit the rotational power to the brush assembly, thereby eliminating the need for an additional motor to provide power to the brush assembly, reducing the power consumption of the floor scrubber and reducing the noise of the floor scrubber.

[0084] It should be noted that the transmission assembly 20 mentioned here is not limited to the form of mutual transmission between the first gear 121 and the second gear 201. For example, two first wheels and second wheels that can rotate by friction with each other, two first wheels and second wheels that do not rub against each other but can rotate synchronously through their respective magnetism, and two first wheels and second wheels that do not rub against each other but can be connected and rotated with each other through belts, racks, chains, etc. These methods are all within the protection scope of the transmission assembly of the present application. The technical personnel in this field can make adaptive adjustments to the details of the specific implementation on the basis of the present application, which will not be elaborated here.

[0085] In some embodiments, Figure 3 , Figure 5 , Figure 6As shown, the terminal button assembly 12 includes an input end (not marked in the drawings) and a clamping end (not marked in the drawings), the input end is coupled to the output shaft 1b of the motor 1A, a portion of the outer edge of the clamping end is sleeved with the first gear 121, a portion of the outer edge of the clamping end is clamped with the second side plate 403 of the cleaning head housing 401, and the terminal button assembly 12 has an active stroke along the axial direction of the motor 1A. The terminal button assembly 12 is sleeved with the first gear 121, and can transmit power to the first gear 121, so that the transmission assembly 20 can further transmit power to the brush assembly. The terminal button assembly 12 has an active stroke along the axial direction of the motor 1A, which allows the user to quickly remove the roller assembly 10 sleeved on the motor drive assembly 1 when the motor drive assembly 1 needs to be maintained. After pressing the terminal button assembly 12, the terminal button assembly 12 can be separated from the second side plate 403 of the cleaning head shell 401, and then the cleaning roller assembly 100 is rotated so that its free end completely leaves the second side plate 403, and then the roller assembly 10 is pulled out, and the motor drive assembly 1 can be further maintained.

[0086] Specifically, Figure 3 , Figure 5 , Figure 6 As shown, the output shaft 1b rotates under the drive of the motor 1A and is coupled to the coupling portion 1011 of the inner cylinder 101 to rotate, and the end button assembly 12 is engaged with the inner cylinder 101 to rotate synchronously, and the end button assembly 12 further drives the transmission assembly 20 to realize the synchronous rotation of the brush assembly.

[0087] In some embodiments, Figure 3 , Figure 5 , Figure 6 , Fig.10 , Fig.11 As shown, the end button assembly 12 is coupled to one end of the inner wall of the inner cylinder 101, and the end button assembly 12 rotates synchronously with the rotation of the roller assembly 10. The end button assembly 12 rotates synchronously with the roller assembly 10, which can conveniently allow the motor 1A of the motor drive assembly 1 to transmit power to the end button assembly 12, and further allow the transmission assembly 20 to transmit power to the brush assembly.

[0088] Specifically, Figure 5 As shown, the output shaft 1b rotates under the drive of the motor 1A, and the output shaft 1b drives the coupling (not marked in the figure) fixedly connected to it to rotate, the coupling coupling 1011 of the inner cylinder 101 rotates, and the end button assembly 12 is engaged with the inner cylinder 101 so as to rotate synchronously.

[0089] The cleaning roller assembly 100 provided by the present invention has an output shaft 1b that is coupled to drive one end of the inner wall of the inner cylinder 101 of the roller assembly 10 under the drive of the motor 1A, thereby synchronously driving the roller assembly 10 to rotate, and its end button assembly 12 has an axial movable stroke along the motor 1A, so that when the cleaning roller 100 needs to repair and disassemble the motor 1A of the motor drive assembly 1, it only needs to press the end button assembly 12 to pull the roller assembly 10 out of the electric drive assembly 1, and then further disassemble and install the motor 1A, so it is convenient to repair and disassemble the drive motor sleeved in the cleaning roller assembly 100.

[0090] In some embodiments, Figure 3 The transmission assembly 20 further comprises a third gear 302 which is detachably fixedly connected to the brush body 301 of the brush assembly, and the third gear 302 is in transmission connection with the second gear 201. The motor 1A of the motor drive assembly 1 transmits power to the terminal assembly (12, 3), the first gear 121 is sleeved on one end of the terminal assembly (12, 3), and transmits power to the first gear 121, the first gear 121 is in transmission connection with the second gear 201, the third gear 302 is in transmission connection with the second gear 201, and the third gear 302 is detachably fixedly connected to the brush body 301 to form a brush assembly, so that the motor 1A of the motor drive assembly 1 transmits power to the brush assembly through the transmission assembly 20.

[0091] In some embodiments, Figure 5 , Figure 6 , Figures 10 to 12 As shown, the end button assembly 12 includes the first gear 121 and the elastic member 122; the first gear 121 is sleeved on one end of the elastic member 122, and the elastic member 122 is detachably fixedly connected to the roller assembly 10 in the inner cavity of the roller assembly 10. The first gear 121 is sleeved on one end of the end button assembly 12, which is convenient for transmitting power to the first gear 121, and the elastic member 122 is detachably fixedly connected to the roller assembly 10 in the inner cavity of the roller assembly 10, which is convenient for the roller assembly 10 to couple with the coupling driven by the output shaft 1b through the coupling part 1011 on the inner cylinder 101, so that power is transmitted from the roller assembly to the end button assembly 12, and then the power is transmitted from the end button assembly 12 to the first gear 121.

[0092] Specifically, Figure 5 , Figure 6 As shown, the end button assembly 12 includes a first gear 121 and an elastic member 122 ; the first gear 121 is sleeved on one end of the elastic member 122 , and the elastic member 122 is detachably fixedly connected to the roller assembly 10 in the inner cavity of the roller assembly 10 .

[0093] In some embodiments, Figure 5 , Figure 6As shown, the elastic member 122 includes a rotating shaft 1221, a spring 1222 and a sleeve 120; the sleeve 120 is provided with a central shaft hole (not marked in the drawings) which passes through a large and a small opening at both ends (not marked in the drawings), one end of the rotating shaft 1221 passes through the central shaft hole of the sleeve 120, and a first stop member 12211 is provided on the outer side of the other end of the rotating shaft 1221, the spring 1222 is sleeved on the rotating shaft 1221, and is located on the side of the first stop member 12211 away from the first gear 121, and one end of the spring 1222 abuts against the small opening end of the sleeve 120. The shaft sleeve 120 is provided with a large and a small opening at both ends and a central axis hole passing through the two openings, so that one end of the rotating shaft 1221 can pass through the central axis hole of the shaft sleeve 120. The spring 1222 is sleeved on the rotating shaft 1221, and one end of the spring 1222 abuts against the inner wall of the small opening end of the shaft sleeve 120, and the other end of the spring 1222 abuts against the other end of the elastic member 122. When external force is applied to the elastic member 122, the outer end of the elastic member 122 compresses the spring 1222, and at the same time, one end of the rotating shaft 1221 passes through the central axis hole along its axis under the combined action of external force and the elastic force of the spring 1222, so that the end button assembly 12 has an active stroke along the axial direction of the motor 1A.

[0094] In some embodiments, Figure 5 , Figure 6 As shown, the end of the rotating shaft 1221 is fixedly connected to an end cap 1223, and the end cap 1223 is sleeved on the side of the first stopper 12211 close to the first gear 121, and abuts against the roller assembly 10 in the inner cavity of the roller assembly 10, the maximum diameter end of the end cap 1223 closes the large opening end of the sleeve 120, and the other end of the end cap 1223 passes through the first gear 121.

[0095] Specifically, Figures 3 to 8 As shown, the outer edge of the end of the end cap 1223 away from the sleeve 120 is cylindrical, and the inner ring of the first gear 121 is cylindrical. The cylindrical outer edge of the end cap 1223 away from the sleeve 120 is transitionally matched with the cylindrical inner ring of the first gear 121. When the drum assembly 10 is driven by the motor drive assembly 1 to rotate, the end button assembly 12 is driven to rotate, and then the first gear 121 is driven to rotate. It should be noted that the outer edge of the end of the end cap 1223 away from the sleeve 120 is set to a cylindrical shape only to improve the convenience of the outer edge of the end cap 1223 and the inner ring of the first gear 121. Correspondingly, the outer edge of the end of the end cap 1223 away from the sleeve 120 can be set to a polygonal column shape, and the inner ring of the first gear 121 is also set to a polygonal column shape, as long as a transitional fit can be formed between the two and they can drive each other to rotate synchronously. This application does not specifically limit the shape of the outer edge of the end cap 1223 and the shape of the inner ring of the first gear 121.

[0096] It should also be noted that the shape of the rotating shaft 1221 can be cylindrical, polygonal or other long columns with regular cross-sections, and the first stopper 12211 can be a stepped column of the rotating shaft 1221. The present application does not specifically limit the shape of the rotating shaft 1221 and the first stopper 12211, as long as the end cap 1223 can be fixedly connected to one end of the rotating shaft 1221, the first stopper 12211 can resist the end cap 1223 and the shaft cover 1224, and the spring 1222 can be freely extended and retracted on the outer periphery of the rotating shaft 1221. Any deformation and adjustment of the functional components based on the concept of the present application are within the protection scope of the present application.

[0097] In some embodiments, Figures 5 to 8 As shown, the end cap 1223 is provided with a second stopper 12231 on the outer edge wall of one end side of the first gear 121, and a first copper sleeve 1225 is provided between the first gear 121 and the second stopper 12231. The first copper sleeve 1225 is fixed on the inner layer 4031 of the second side plate during the injection molding process of the cleaning head shell 401. In order to prevent the transition fit between the cylindrical outer edge of the end cap 1223 away from the sleeve 120 and the cylindrical inner ring of the first gear 121 from slipping against each other when the resistance is too large, resulting in the inability to transmit power to the brush assembly, the second stopper 12231 is a gear ring extending around the outer edge of the end cap 1223 close to the sleeve 120 in the direction away from the sleeve 120, and the corresponding first gear 121 and the second stopper 12231 cooperate with each other on a side with a tooth groove, and the gear ring of the second stopper 12231 bites into the tooth groove of the first gear 121, so that even when the inner ring of the first gear 121 and the outer edge of the end cap 1223 away from the sleeve 120 slip, power transmission can still be achieved by the mutual engagement of the gear ring tooth grooves. The first copper sleeve 1225 is fixed to the inner layer 4031 of the second side plate during the injection molding process of the cleaning head shell 401, which can ensure a higher coaxiality of the corresponding coupling holes of the first copper sleeve 1225 and the cleaning head shell 401, and can reduce the wear between the outer edge of the end cap 1223 away from the sleeve 120 and the first copper sleeve 1225.

[0098] In some embodiments, Figures 5 to 8As shown, a second copper sleeve 1227 is provided on a side of the first gear 121 away from the second stopper 12231, and the second copper sleeve 1227 is fixed on the second side plate outer layer 4032. When working, the first gear 121 is restricted between the first copper sleeve 1225 and the second copper sleeve 1227. Of course, the second copper sleeve 1227 can be fixed on the second side plate outer layer 4032 during the injection molding process of the second side plate outer layer 4032. A higher coaxiality of the second copper sleeve 1227 and the corresponding coupling holes of the second side plate outer layer 4032 can be ensured, and the wear between the first gear 121 and the second copper sleeve 1227 can be reduced.

[0099] In some embodiments, Figures 5 to 8 As shown, a transmission assembly cover plate 4033 for covering the transmission assembly 20 is also provided on the inner layer 4031 of the second side plate, and correspondingly, a matching through hole having the same shape as the transmission assembly cover plate 4033 is provided on the outer layer 4032 of the second side plate. After the transmission assembly cover plate 4033 is covered on the inner layer 4031 of the second side plate, the outer layer 4032 of the second side plate is further covered to form a complete second side plate 403. The second copper sleeve 1227 is fixed on the transmission assembly cover plate 4033. During operation, the first gear 121 is restricted between the first copper sleeve 1225 and the second copper sleeve 1227. Of course, the second copper sleeve 1227 can be fixed on the transmission assembly cover plate 4033 during the injection molding process of the transmission assembly cover plate 4033. A higher coaxiality of the corresponding coupling holes of the second copper sleeve 1227 and the transmission assembly cover plate 4033 can be ensured, and the wear between the first gear 121 and the second copper sleeve 1227 can be reduced.

[0100] In some embodiments, Figures 5 to 8As shown, a detachable shaft cover 1224 is sleeved on one end of the rotating shaft 1221 close to the first gear 121, and the shaft cover 1224 is detachably fixed to the large opening end inside the sleeve 120, and the other end of the spring 1222 abuts against the shaft cover 1224. A through hole (not shown in the drawings) is provided at the center of the shaft cover 1224, and a concave platform (not shown in the drawings) is provided at one end of the middle part of the rotating shaft 1221 close to the end cap 1233, which passes through and cooperates with the through hole. A mounting hole (not shown in the drawings) is provided on the shaft cover 1224 around the circumference of the rotating shaft 1221, which can be used to connect to the large opening end of the sleeve 120. The shaft cover 1224 can be fixedly connected to the large opening end of the sleeve 120 by fastening screws in the mounting hole. When the entire end button assembly 12 needs to be removed for maintenance, the end cap 1223 is held tightly and pulled outward away from the outer edge of the shaft sleeve 120, and the end cap 1223 drives the rotating shaft 1221, and the protrusion at the concave end of the rotating shaft 1221 drives the shaft cover 1224 outward, and the shaft cover 1224 drives the shaft sleeve 120 outward, and finally the entire end button assembly 12 can be separated from the roller assembly 10. After the end button assembly 12 is removed from the cleaning roller 100, the end button assembly 12 can be further maintained.

[0101] Embodiment 2:

[0102] This series of embodiments are mainly different from the aforementioned embodiments in the specific structure of the end button assembly 3 and whether the end button assembly 3 drives the roller assembly 10 to rotate. The parts that are the same as the technical solutions of the aforementioned embodiments are not repeated here one by one.

[0103] like Figures 10 to 12 , Fig.15 As shown, the electric drive assembly 1 includes a motor 1A for providing power to the cleaning roller assembly 100, a reduction gear 1a coupled to the output end of the motor 1A, an output shaft 1b driven to rotate by the reduction gear 1a, an output end sealing plug 1c sleeved on the outer edge of the output shaft 1b, a terminal mounting seat 1d sleeved on the outer edge end of the output shaft 1b, a heat conductive protective tube 1g, a hinge (not shown in the drawings), a motor fixing portion 1f, and a hinge pin 1e for hingedly connecting the motor fixing portion 1f and the hinge, wherein the heat conductive protective tube 1g connects the hinge, the motor, and the hinge. The parts of the machine 1A, the reduction gear 1a, the output end sealing plug 1c and the terminal button mounting seat 1d are sealed and sleeved in the hollow cavity of the heat conductive protection tube 1g in sequence. The end of the output shaft 1b is fixedly connected with the terminal button body 32. The outer edge of the terminal button body 32 is provided with a clamping portion 321. The output shaft 1b rotates under the drive of the motor 1A and drives the terminal button body 32 to rotate. The terminal button body 32 is coupled to the inner tube 101 through the clamping portion 321 and drives the inner tube 101 to rotate. At the same time, the terminal button assembly 3 drives the transmission assembly 20 to realize the synchronous rotation of the brush assembly.

[0104] In some embodiments, Fig.10, Fig.11 As shown, the end of the output shaft 1b is fixedly connected to the end button body 32, and the outer edge of the end button body 32 is provided with a clamping portion 321. The output shaft 1b rotates under the drive of the motor 1A and drives the end button body 32 to rotate, and the end button assembly 3 also rotates under the drive of the motor 1A. The end button body 32 of the end button assembly 3 is coupled to the inner cylinder 101 through the clamping portion 321 and drives the inner cylinder 101 to rotate. At the same time, the end button assembly 3 drives the transmission assembly 20 to realize the synchronous rotation of the brush assembly.

[0105] Specifically, Figures 10 to 12 As shown, the end button assembly 3 includes a first gear 121 and an elastic member 3A; the first gear 121 is sleeved on one end of the elastic member 3A, and the clamping portion 321 on the outer edge of the end button body 32 of the elastic member 3A is clamped with the roller assembly 10 in the inner cavity of the roller assembly 10.

[0106] In some embodiments, Figures 10 to 12 As shown, the elastic member 3A includes a terminal button mounting seat 1d which is sealingly sleeved on one end of the thermally conductive protective tube 1g, a terminal button body 32 which is sleeved on the end of the output shaft 1b, a telescopic cap 35 which is sleeved on the inner wall of the terminal button body 32, a spring 39 which provides elastic force for the telescopic cap 35, and an end cap 33 which is fixedly connected to the telescopic cap 35 by a screw 38; one end of the terminal button mounting seat 1d is sleeved on the outer periphery of the output shaft 1b and is detachably connected to the output end sealing plug 1c, and the outer edge of the other end is clamped on the end opening of the thermally conductive protective tube 1g of the motor; the middle part of the terminal button body 32 is through-set, including a sleeve end (not shown in the figure) and a container end. The receiving end (not marked in the drawings) is sleeved and installed on the rotating end of the output shaft 1b, and the receiving end has an output shaft sleeve end (not marked in the drawings), and the outer periphery of the output shaft sleeve end has a clamping portion 321 for driving the cleaning roller to rotate; one end of the telescopic cap 35 is sleeved on the output shaft sleeve end and is limited by the limiting structure between the output shaft sleeve end and the end cap 33; the spring 39 is clamped between the end cap 33 and the end button mounting seat 1d so that the end cap 33 extends out of the output shaft sleeve end; one end of the end cap 33 is sleeved on the end of the telescopic cap 35, and the other end is sleeved on the inner ring of the first gear 121. It should be noted that the outer edge of the end of the end cap 33 away from the telescopic cap 35 is set to a cylindrical shape only to improve the convenience of the outer edge of the end cap 33 and the inner ring of the first gear 121. Correspondingly, the outer edge of the end of the end cap 33 away from the telescopic cap 35 can be set to a polygonal column shape, and the inner ring of the first gear 121 can also be set to a polygonal column shape, as long as a transition fit can be formed between the two and they can drive each other to rotate synchronously. This application does not specifically limit the shape of the outer edge of the end cap 33 and the shape of the inner ring of the first gear 121.

[0107] In some embodiments, Fig.11 , Fig.15 As shown, a driving tooth 331 is provided on the outer edge wall of one end side of the end cap 33 abutting against the first gear 121, and a first copper sleeve 1225 is provided between the first gear 121 and the driving tooth 331. The first copper sleeve 1225 is fixed on the inner layer 4031 of the second side plate during the injection molding process of the cleaning head shell 401. In order to prevent the transition fit between the cylindrical outer edge of the end cap 33 away from the end button body 32 and the cylindrical inner ring of the first gear 121 from slipping against each other when the resistance is too large, thereby preventing the power from being transmitted to the brush assembly, the driving tooth 331 is a gear ring extending around the outer edge of the end cap 33 close to the end button body 32 in the direction away from the end button body 32, and the corresponding first gear 121 is provided with a tooth groove on the side that cooperates with the driving tooth 331, and the gear ring of the driving tooth 331 bites the tooth groove of the first gear 121, so that even when the inner ring of the first gear 121 and the outer edge of the end cap 33 away from the end button body 32 slip, the power transmission can still be achieved by the mutual engagement of the gear ring tooth grooves. The first copper sleeve 1225 is fixed to the inner layer 4031 of the second side plate during the injection molding process of the cleaning head shell 401, which can ensure a higher coaxiality of the first copper sleeve 1225 and the corresponding coupling holes of the cleaning head shell 401, and can reduce the wear between the outer edge of the end cap 33 away from the terminal button body 32 and the first copper sleeve 1225.

[0108] In some embodiments, Figures 10 to 12 As shown, the limiting structure includes a limiting waist-shaped hole 36 and a limiting pin 37. The limiting waist-shaped hole 36 is opened on the side wall of the end cap 33 along the telescopic direction of the end cap 33, and the limiting pin 37 is penetrated through the side wall of the output shaft sleeve end to limit the limiting waist-shaped hole 36.

[0109] The cleaning roller 100 provided by the present invention has an end button assembly 3 that is coupled to drive one end of the inner wall of the inner cylinder 101 of the roller assembly 10 under the drive of the motor 1A, thereby synchronously driving the roller assembly 10 to rotate. The end button assembly 3 has an axial movable stroke along the motor 1A, so that when the cleaning roller assembly 100 needs to repair and disassemble the motor 1A of the motor drive assembly 1, the roller assembly 10 can be pulled out from the electric drive assembly 1 by pressing the end button assembly 3, and the motor 1A can be further disassembled and installed, which makes it convenient to repair and disassemble the drive motor sleeved in the cleaning roller assembly 100.

[0110] In some embodiments, Figures 10 to 12As shown, the outer periphery of the sleeve end of the end button body 32 is sleeved with a second bearing N, the inner ring of the second bearing N is transitionally matched with the outer periphery of the sleeve end of the end button body 32, and the outer ring of the bearing N is transitionally matched with the end button mounting seat 1d. In this way, the end button mounting seat 1d of the electric drive assembly 1 does not rotate, and the output shaft 1b of the electric drive assembly 1 rotates to drive the end button body 32 to rotate. The second bearing N realizes the rotational connection between the end button body 32 and the end button mounting seat 1d, providing stable rotation support for the end button assembly 3 under the drive of the output shaft 1b of the electric drive assembly 1. The end button assembly 3 is also coupled to the transmission mechanism 20 and the roller assembly 10 for rotation. The second bearing N further improves the rotational stability of the brush assembly and the cleaning roller 100.

[0111] The cleaning roller assembly 100 provided by the present invention has a terminal button body 32 of its terminal button assembly 3 driven to rotate by the output shaft 1b of the electric drive assembly 1, and the clamping portion 321 of the terminal button body 32 is clamped with one end of the roller assembly 10 of the floor scrubber to drive the roller assembly 10 to rotate; its terminal button assembly 3 has an axial movable stroke along the motor 1A, and when it is necessary to disassemble and maintain the electric drive assembly 1 sleeved in the cleaning roller assembly 100, it is only necessary to press the end cap 33 of the terminal button assembly 3, and the end cap 33 pushes the telescopic cap 35 of the terminal button assembly 3 to contract, so that the clamping end of the cleaning roller assembly 100 can be turned out from the clamping position of the cleaning head shell 401, and then it is more convenient to pull out the roller assembly 10.

[0112] Embodiment three:

[0113] This series of embodiments differs from the aforementioned embodiments mainly in the specific structure of the drum assembly 10. The parts that are the same as the technical solutions of the aforementioned embodiments will not be described in detail here.

[0114] In some embodiments, Figure 13 to Figure 14 As shown, the roller assembly 10 also includes an inner sleeve 103 that can be inserted into the inner cylinder 101 from one end and a coupling 104 that is detachably connected to the inner surface of one end of the inner sleeve. The clamping portion 321 of the terminal button body 32 (or the output shaft 1b drives the coupling fixedly connected thereto) couples the coupling 104 to drive the inner sleeve 103 to rotate. The rotation of the inner sleeve 103 drives the inner cylinder 101 to rotate, thereby synchronously driving the roller assembly 10 to rotate.

[0115] Specifically, the inner sleeve 103 can be made of metal material to further enhance the ability to dissipate heat outwards from the motor 1A of the electric drive assembly 1. The coupling member 104 and the inner sleeve 103 are detachably fixedly connected, which reduces the difficulty of forming the coupling member 104 area of ​​the integral inner sleeve 103. Since there is no need to replace the coupling member 104 and the inner sleeve 103 each time the consumables of the roller assembly 10 are replaced, the cost of replacing the consumables is further reduced.

[0116] Furthermore, the outer edge of the inner sleeve 103 and the inner wall of the inner cylinder 101 can be in the form of a tooth-shaped matching structure that meshes with each other. The tooth-shaped matching structure can increase the surface area of ​​the inner sleeve 103 that can dissipate heat to the outside, and on the other hand, it also increases the surface area that contacts and matches with the inner wall of the inner cylinder 101, increasing the friction between the two, which is more conducive to the smooth rotation of the entire drum assembly 10. The shape of the tooth profile can be T-shaped, V-shaped, A-shaped, M-shaped, W-shaped, N-shaped, P-shaped, etc. As long as the outer edge of the inner sleeve 103 and the inner wall of the inner cylinder 101 can be separated by lateral pulling, the present application does not specifically limit the specific form of the tooth-shaped matching structure.

[0117] Of course, the outer edge of the inner sleeve 103 and the inner wall of the inner tube 101 can also be matched in the form of a cylindrical surface with a certain friction force, a multi-prism surface, or a special-shaped prism surface. As long as the outer edge of the inner sleeve 103 and the inner wall of the inner tube 101 can be separated by lateral pulling, the present application does not make any specific limitations on the specific form of the matching structure between the two.

[0118] The outer cylinder 102 is constantly squeezed by a water squeezing bar (not shown in the drawing) mounted on the cleaning head housing 401 of the floor scrubber based on the principle of water-dust circulation. At the same time, the outer cylinder 102 is also squeezed by solid waste on the surface to be cleaned during cleaning. After the entire drum assembly 10 has been used for a period of time, the outer cylinder 102 will have a certain degree of wear. When the wear reaches a certain degree, it will seriously affect the cleaning efficiency of the entire floor scrubber.

[0119] The cleaning roller assembly 100 provided by the present invention only needs to pull out the inner sleeve 103 when the roller assembly 10 needs to be replaced and maintained, and the coupling member 104 is automatically taken out. The roller assembly 10 can be quickly maintained by simply replacing it with a new assembly consisting of an inner cylinder 101 and an outer surface of 101 covered with a new outer cylinder 102, thereby improving the efficiency of maintaining the roller assembly 10 and reducing the cost of consumables for replacing the roller assembly 10.

[0120] The embodiments of the present application are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and its core idea of ​​the present application. At the same time, changes or deformations made by those skilled in the art based on the ideas of the present application, the specific implementation methods and the scope of application of the present application, all belong to the scope of protection of the present application. In summary, the content of this specification should not be construed as a limitation on the present application.

Claims

1. A cleaning roller assembly is installed in a cleaning head housing of a floor scrubber and sleeved on a motor having one end mounted on a first side plate of the cleaning head housing. The motor has an output shaft. A brush assembly is also bridged between two pairs of side walls of the cleaning head housing. The characteristics are: include: The roller assembly comprises an inner cylinder and an outer cylinder formed by foaming PVA material on the outer surface of the inner cylinder, wherein the output shaft is coupled to drive one end of the inner wall of the inner cylinder, thereby synchronously driving the roller assembly to rotate; The end button assembly is coupled with the brush assembly through a transmission assembly arranged on the cleaning head housing to rotate synchronously; Wherein, the roller assembly and the end button assembly rotate synchronously.

2. The cleaning roller assembly according to claim 1, characterized in that: The end button assembly is detachably connected to the first gear, the transmission assembly includes the first gear and a second gear transmission-connected to the first gear, and the second gear is transmission-connected to the brush assembly.

3. The cleaning roller assembly according to claim 2, characterized in that: The terminal button assembly includes an input end and a clamping end, the input end is coupled to the motor drive output end, a portion of the outer edge of the clamping end is sleeved with the first gear, a portion of the outer edge of the clamping end is clamped with the second side plate of the cleaning head shell, and the terminal button assembly has a movable stroke along the axial direction of the motor.

4. The cleaning roller assembly according to claim 1, characterized in that: The end button assembly is coupled to one end of the inner wall of the inner cylinder, and the end button assembly rotates synchronously with the rotation of the roller assembly.

5. The cleaning roller assembly according to claim 2, characterized in that: The transmission assembly also includes a third gear detachably fixedly connected to the brush body of the brush assembly, and the third gear is transmission-connected to the second gear.

6. The cleaning roller assembly according to claim 3, characterized in that: The end button assembly includes the first gear and an elastic member; the first gear is sleeved on one end of the elastic member, and the elastic member is detachably fixedly connected to the roller assembly in the inner cavity of the roller assembly.

7. The cleaning roller assembly according to claim 6, characterized in that: The elastic member includes a rotating shaft, a spring and a sleeve; the sleeve is provided with a central shaft hole with two openings, one large and one small, running through it; one end of the rotating shaft passes through the central shaft hole of the sleeve; a first stopper is provided on the outer side of the other end of the rotating shaft; the spring is sleeved on the rotating shaft and is located on the side of the first stopper away from the first gear; one end of the spring abuts against the small opening end of the sleeve.

8. The cleaning roller assembly according to claim 7, characterized in that: The end of the rotating shaft is fixedly connected to an end cap, which is sleeved on the side of the first stop member close to the first gear and abuts against the roller assembly in the inner cavity of the roller assembly. The end with the largest diameter of the end cap closes the large open end of the sleeve, and the other end of the end cap passes through the first gear.

9. The cleaning roller assembly according to claim 7, characterized in that: A second stopper is provided on the outer edge wall of one end side of the end cap abutting against the first gear, and a first copper sleeve is provided between the first gear and the second stopper. The first copper sleeve is fixed on the inner layer of the second side plate during the injection molding process of the cleaning head shell.

10. The cleaning roller assembly according to claim 9, characterized in that: A second copper sleeve is provided on the side of the first gear away from the second stopper. The second copper sleeve is fixed on the outer layer of the second side plate. When working, the first gear is confined between the first copper sleeve and the second copper sleeve.

11. The cleaning roller assembly according to any one of claims 7 to 10, characterized in that: A detachable shaft cover is sleeved on one end of the rotating shaft close to the first gear. The shaft cover is detachably fixed to the large opening end inside the shaft sleeve, and the other end of the spring is in contact with the shaft cover.

12. The cleaning roller assembly according to claim 6, characterized in that: The elastic member comprises: A terminal button mounting seat, one end of which is sleeved on the outer periphery of the output shaft and detachably connected to the output end sealing plug, and the outer edge of the other end is clamped on the end opening of the heat conductive protection tube of the motor; The end button body has a through-through arrangement in the middle, and includes a sleeve end and a receiving end, wherein the sleeve end is sleeved and installed on the rotating end of the output shaft, the receiving end has an output shaft sleeve end, and the outer periphery of the output shaft sleeve end has a clamping portion for driving the cleaning roller to rotate; A telescopic cap, one end of which is sleeved on the output shaft sleeve end and is limited by a limiting structure between the output shaft sleeve end and the end cap; A telescopic cap spring, sandwiched between the end cap and the end button mounting seat so that the end cap extends out of the output shaft sleeve end; An end cap has one end sleeved on the end of the telescopic cap and the other end sleeved on the inner ring of the first gear.

13. The cleaning roller assembly according to claim 12, characterized in that: The limiting structure includes a limiting waist-shaped hole and a limiting pin. The limiting waist-shaped hole is opened on the side wall of the end cap along the telescopic direction of the end cap. The limiting pin is penetrated through the side wall of the output shaft sleeve end to limit the limiting waist-shaped hole.

14. The cleaning roller assembly according to claim 12, characterized in that: A bearing is sleeved on the outer periphery of the sleeve end of the end button body, the inner ring of the bearing is transitionally matched with the outer periphery of the sleeve end of the end button body, and the outer ring of the bearing is transitionally matched with the end button mounting seat.

15. The cleaning roller assembly according to claim 12, characterized in that: The roller assembly also includes an inner sleeve that can be inserted into the inner cylinder from one end and a coupling piece that can be detachably connected to the inner surface of one end of the inner sleeve. The clamping portion of the terminal button body is coupled to the coupling piece to drive the inner sleeve. The rotation of the inner sleeve drives the inner cylinder to rotate, thereby synchronously driving the roller assembly to rotate.

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