Cleaning assembly, peristaltic pump, and cleaning apparatus

Abstract

Disclosed are a cleaning assembly (10), a peristaltic pump (101) and a cleaning apparatus (100). The cleaning assembly (10) comprises a driving mechanism (12) and a rolling brush, wherein the driving mechanism (12) comprises an electric motor (16) and a planetary gear mechanism (18). The electric motor (16) comprises an output shaft (17). The planetary gear mechanism (18) comprises a first planetary gear set (26) and a second planetary gear set (36), wherein the first planetary gear set (26) is connected to the output shaft (17), and the first planetary gear set (26) is in transmission connection with the second planetary gear set (36); and the second planetary gear set (36) is connected to the rolling brush and is configured to drive same to rotate.

Description

Cleaning assembly, peristaltic pump and cleaning device

[0001] Priority information

[0002] This application claims priority to and the benefit of patent application number 202422472038.0 filed with the China National Intellectual Property Office on October 12, 2024, and patent application number 202411345339.5 filed with the China National Intellectual Property Office on September 25, 2024, and incorporates by reference the entire contents of each. TECHNICAL FIELD

[0003] The present application relates to the technical field of cleaning equipment, in particular to a cleaning assembly, a peristaltic pump and a cleaning device. BACKGROUND

[0004] In the related art, a scrubber drives a roller brush through a motor, and the roller brush rolls to realize scrubbing of a working surface. When the roller brush is wet or squeezed against the machine body to squeeze water, the load of the motor is large, and if the output torque is insufficient, the motor will have difficulty driving the roller brush to rotate, and the roller brush may even stop rotating, thereby affecting the use of the scrubber and even causing damage to the motor. SUMMARY

[0005] The present application provides a cleaning assembly, a peristaltic pump and a cleaning device to solve at least one of the above technical problems.

[0006] The present application provides a cleaning assembly. The cleaning assembly comprises a driving mechanism and a roller brush, the driving mechanism comprising a motor and a planetary gear mechanism;

[0007] The motor comprises an output shaft, the planetary gear mechanism comprises a first planetary gear set and a second planetary gear set, the first planetary gear set is connected to the output shaft, the first planetary gear set is drivingly connected to the second planetary gear set, and the second planetary gear set is connected and used to drive the roller brush to rotate.

[0008] In the above cleaning assembly, the output shaft of the motor is drivingly connected to the first planetary gear set and the second planetary gear set to drive the roller brush to rotate, and the first planetary gear set and the second planetary gear set increase the reduction ratio, thereby increasing the output torque of the second planetary gear set to drive the roller brush, and avoiding the phenomenon of getting stuck or stopping when the roller brush rotates.

[0009] In some embodiments, the first planetary gear set comprises a first sun gear, a first planetary gear, a first planet carrier and a ring gear, the first sun gear is fixedly connected to the output shaft, the first planetary gear is externally meshed with the first sun gear, the first planetary gear is internally meshed with the ring gear, and the first planetary gear is fixedly connected to the first planet carrier.

[0010] In some embodiments, the first planetary gear set further comprises a first friction plate, which is arranged on the peripheral surface of the first planetary carrier towards the first planetary gear.

[0011] In some embodiments, the second planetary gear set comprises a second sun gear, a second planetary gear, and a second planetary carrier, the second sun gear is fixedly connected with the first planetary carrier, the second planetary gear is externally meshed with the second sun gear, the second planetary gear is internally meshed with the ring gear, and the second planetary gear is fixedly connected with the second planetary carrier.

[0012] In some embodiments, the second planetary gear set further comprises a second friction plate, which is arranged on the peripheral surface of the first planetary carrier towards the second planetary gear.

[0013] In some embodiments, the rolling brush comprises a brush body and a cleaning piece, the cleaning piece is sleeved on the peripheral surface of the brush body, the brush body is internally formed with an accommodation space, the driving mechanism is at least partially accommodated in the accommodation space, the cleaning assembly comprises a bracket, the bracket is provided with a mounting hole, and the driving mechanism is rotatably connected with the bracket through the mounting hole.

[0014] In some embodiments, the output shaft comprises two opposite output ends, the driving mechanism comprises two planetary gear mechanisms, a first driving shaft, and a second driving shaft, the two planetary gear mechanisms are respectively connected with the two output ends, and the two planetary gear mechanisms are respectively connected with the first driving shaft and the second driving shaft, the rolling brush comprises a first rolling brush and a second rolling brush, the brush body of the first rolling brush is connected with the first driving shaft, the brush body of the second rolling brush is connected with the second driving shaft, and the bracket is arranged between the first rolling brush and the second rolling brush.

[0015] In some embodiments, the length of the first driving shaft is greater than the length of the second driving shaft, and the mounting position of the bracket and the driving mechanism is located on the side where the first driving shaft is located.

[0016] In some embodiments, the ring gear is provided with a through hole, the first driving shaft and the second driving shaft pass through the through hole and are respectively fixedly connected with the second planetary carrier, the planetary gear mechanism comprises a bearing, and the bearing is mounted between the ring gear and the first driving shaft and between the ring gear and the second driving shaft.

[0017] A peristaltic pump according to an embodiment of the present application comprises a base, a planetary gear mechanism, and a driving piece, the planetary gear mechanism comprises a sun gear, a planetary gear, and an inner tooth disc;

[0018] The output shaft of the driving member is fixedly connected with the sun gear;

[0019] The base is fixedly connected with the driving member, the base is provided with a first positioning part, the planetary gear is rotatably sleeved on the first positioning part and engaged with the sun gear, and the inner tooth disc covers the planetary gear and is engaged with the planetary gear.

[0020] In the peristaltic pump, the planetary gear is rotatably sleeved on the first positioning part, so that the positioning of the planetary gear is facilitated, the installation of the planetary gear mechanism can be conveniently completed without auxiliary tools, and the assembly efficiency can be improved.

[0021] In some embodiments, the peristaltic pump comprises a roller, the planetary gear mechanism comprises a planet carrier provided with a mounting part, the roller is movably mounted on the mounting part, the inner tooth disc is provided with a second positioning part, and the mounting part is connected with the second positioning part, so that the driving member drives the planet carrier and the roller to move through the inner tooth disc.

[0022] In some embodiments, the first positioning part comprises a positioning pin protruding from the base, and the planetary gear is rotatably sleeved on the positioning pin.

[0023] In some embodiments, the second positioning part comprises a positioning groove formed on one side of the inner tooth disc facing the planet carrier, and the mounting part is inserted into the positioning groove, so that the positioning groove limits the mounting part in the rotation direction of the inner tooth disc.

[0024] In some embodiments, the base is fixedly connected with the driving member, the base is provided with a first through hole, and the sun gear passes through the first through hole to engage with the planetary gear.

[0025] In some embodiments, the peristaltic pump comprises a hose and a top cover, the top cover is buckled on the base, and the hose is arranged between the top cover and the roller.

[0026] In some embodiments, the periphery of the top cover is provided with one of a clamping groove and a buckle, the periphery of the base is provided with the other of the clamping groove and the buckle, and the buckle is clamped in the clamping groove.

[0027] In some embodiments, the peristaltic pump comprises a first valve nozzle and a second valve nozzle, one end of the hose is connected with the first valve nozzle, and the other end of the hose is connected with the second valve nozzle.

[0028] In some embodiments, the top cover is provided with a third positioning part, the planet carrier is provided with a second through hole, and the second through hole passes through the third positioning part, so that the planet carrier is rotatably mounted on the top cover.

[0029] In some embodiments, the base is provided with a third through hole, the housing of the driving member is provided with a fourth through hole, and the peristaltic pump comprises a fastener, the fastener is arranged to pass through the third through hole and the fourth through hole to fixedly connect the base and the driving member.

[0030] The cleaning device provided by the embodiments of the present application comprises the cleaning assembly of any one of the above embodiments or the peristaltic pump of any one of the above embodiments.

[0031] In the cleaning device, the output shaft of the motor is driven to rotate the roller brush through the first planetary gear set and the second planetary gear set, and the first planetary gear set and the second planetary gear set are used to increase the reduction ratio, so that the output torque of the roller brush driven by the second planetary gear set is increased, and the phenomenon of being stuck or stopped during rotation of the roller brush is avoided.

[0032] Additional aspects and advantages of the present application will be made apparent by the following description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0033] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0034] Fig. 1 is a structural schematic diagram of a cleaning assembly according to an embodiment of the present application;

[0035] Fig. 2 is an exploded schematic diagram of the cleaning assembly according to an embodiment of the present application;

[0036] Fig. 3 is a sectional schematic diagram of a cleaning device according to an embodiment of the present application;

[0037] Fig. 4 is a structural schematic diagram of the cleaning device according to an embodiment of the present application;

[0038] Fig. 5 is a front view of a peristaltic pump according to an embodiment of the present application;

[0039] Fig. 6 is an exploded schematic diagram of a partial structure of the peristaltic pump according to an embodiment of the present application;

[0040] Fig. 7 is an exploded schematic diagram of the peristaltic pump according to an embodiment of the present application;

[0041] Fig. 8 and Fig. 9 are structural schematic diagrams of an inner toothed disc according to an embodiment of the present application;

[0042] Fig. 10 is a structural schematic diagram of a partial structure of the peristaltic pump according to an embodiment of the present application;

[0043] Fig. 11 is a structural schematic diagram of a top cover according to an embodiment of the present application.

[0044] Main component reference numerals: cleaning assembly 10, driving mechanism 12, first roller brush 14a, second roller brush 14b, motor 16, output shaft 17, planetary gear mechanism 18, first planetary gear set 20, second planetary gear set 22, first sun gear 24, first planetary gear 26, first carrier 28, ring gear 30, first friction plate 32, second sun gear 34, second planetary gear 36, second carrier 38, second friction plate 40, brush body 42, cleaning piece 43, support 44, first driving shaft 46, second driving shaft 48, through hole 50, bearing 52, gasket 54, retainer 56; peristaltic pump 101, base 121, driving piece 161, first positioning portion 171, third sun gear 181, third planetary gear 201, inner toothed disc 221, roller 241, third carrier 261, mounting portion 281, second positioning portion 301, first through hole 321, hose 341, top cover 361, clamping groove 381, buckle 401, first valve nozzle 421, second valve nozzle 441, third positioning portion 461, second through hole 481, third through hole 501, fourth through hole 521; cleaning device 100. DETAILED DESCRIPTION

[0045] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference numbers represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0046] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present application. In order to simplify the disclosure of the embodiments of the present application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. The embodiments of the present application can refer to the same reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the embodiments of the present application provide examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0047] In the related art, the scrubber is driven by the motor to roll the roller brush to achieve the wiping of the working surface.

[0048] However, when the roller brush is cleaning and working, the weight of the roller brush will increase after the bristles are wet.

[0049] At the same time, in order to ensure the cleaning effect, the upper body of the scrubber is provided with a squeezing roller for mutually squeezing the roller brush to squeeze out the excess water on the roller brush, so as to clean the roller brush and keep the roller brush at a proper dryness.

[0050] In the above-mentioned cases of the rolling brush dipping in water and being squeezed by the machine body, the load of the motor is large, and if the output torque is insufficient, the motor will have difficulty in driving the rolling brush to rotate, and even the rolling brush will stop rotating, thereby affecting the use of the scrubber and even causing damage to the motor.

[0051] Referring to FIGS. 1 and 2, the embodiment of the present application provides a cleaning assembly 10. The cleaning assembly 10 comprises a driving mechanism 12 and a rolling brush, and the driving mechanism 12 comprises a motor 16 and a planetary gear mechanism 18.

[0052] The motor 16 comprises an output shaft 17, and the planetary gear mechanism 18 comprises a first planetary gear set 26 and a second planetary gear set 36. The first planetary gear set 26 is connected to the output shaft 17, and the first planetary gear set 26 is drivingly connected to the second planetary gear set 36. The second planetary gear set 36 is connected to and used to drive the rolling brush to rotate.

[0053] In the above-mentioned cleaning assembly 10, the output shaft 17 of the motor 16 is drivingly connected to the first planetary gear set 26 and the second planetary gear set 36 for driving the rolling brush to rotate. The first planetary gear set 26 and the second planetary gear set 36 increase the speed reduction ratio, thereby increasing the output torque of the second planetary gear set 36 for driving the rolling brush to rotate, and avoiding the phenomenon of difficulty in rotating or stopping of the rolling brush.

[0054] Specifically, the cleaning assembly 10 is used to be installed on a cleaning device 100 for cleaning a working surface. The cleaning device 100 can support and fix the cleaning assembly 10 and provide power and cleaning water for the cleaning assembly 10, and the like.

[0055] The cleaning assembly 10 comprises the driving mechanism 12 and the rolling brush. The driving mechanism 12 is drivingly connected to the rolling brush and can drive the rolling brush to rotate for cleaning the working surface.

[0056] The driving mechanism 12 comprises the motor 16 and the planetary gear mechanism 18. The output shaft 17 of the motor 16 is connected to the planetary gear mechanism 18, and the planetary gear mechanism 18 is connected to the rolling brush to realize the driving of the rolling brush by the motor 16.

[0057] The planetary gear mechanism 18 comprises the first planetary gear set 26 and the second planetary gear set 36. The first planetary gear set 26 is connected to the output shaft 17 of the motor 16 and the second planetary gear set 36, respectively. The second planetary gear set 36 is connected to the rolling brush. The first planetary gear set 26 and the second planetary gear set 36 respectively reduce the output speed of the motor 16, can increase the speed reduction ratio, and increase the output torque of the second planetary gear set 36 for driving the rolling brush to rotate.

[0058] The planetary gear mechanism 18 has high transmission efficiency, and multiple planetary gears simultaneously transmit power, so that it can bear a larger load. In addition, the planetary gear mechanism 18 has a simple and compact structure, can achieve a larger speed reduction ratio in a smaller space, and is suitable for use in a small cleaning device 100.

[0059] Referring to FIG. 2, in some embodiments, the first planetary gear set 26 includes a first sun gear 24, a first planetary gear 26, a first planetary carrier 28, and a ring gear 30. The first sun gear 24 is fixedly connected to the output shaft 17. The first planetary gear 26 is externally meshed with the first sun gear 24. The first planetary gear 26 is internally meshed with the ring gear 30. The first planetary gear 26 is fixedly connected to the first planetary carrier 28.

[0060] In this way, the first planetary gear set 26 can reduce and transmit the output rotational speed of the motor 16.

[0061] Specifically, the first sun gear 24 is fixedly connected to the output shaft 17 of the motor 16. The motor 16 can drive the first sun gear 24 to rotate. The first planetary gear 26 is externally meshed with the first sun gear 24. The ring gear 30 is arranged outside the first planetary gear 26. The teeth on the ring gear 30 are internally meshed with the first planetary gear 26.

[0062] The first planetary carrier 28 is fixedly connected to the first planetary gear 26. The first planetary gear 26 rotates around the first sun gear 24 and revolves between the first sun gear 24 and the ring gear 30. The revolution of the first planetary gear 26 drives the first planetary carrier 28 to rotate, and the first planetary carrier 28 outputs power. The speed reduction ratio of the first planetary gear set 26 is related to the number of teeth of the ring gear 30 and the number of teeth of the first sun gear 24.

[0063] In some embodiments, the first planetary gear set 26 includes multiple first planetary gears 26. The multiple first planetary gears 26 are uniformly distributed along the inner periphery of the ring gear 30.

[0064] In this way, the multiple first planetary gears 26 can jointly bear the load, so that the operation is more stable.

[0065] Specifically, the first planetary gear set 26 includes multiple first planetary gears 26. The multiple first planetary gears 26 are uniformly distributed along the inner periphery of the ring gear 30. The load is uniformly distributed among the multiple first planetary gears 26, that is, the meshing force transmitted by the first sun gear 24 to the multiple first planetary gears 26 is equal, which is beneficial to improve the transmission efficiency of the planetary gear mechanism 18.

[0066] In some embodiments, the first planetary gear set 26 further includes a first friction plate 32. The first friction plate 32 is arranged on the circumferential surface of the first planetary gear 26 facing the first sun gear 24.

[0067] Thus, the end surface friction of the first planetary gear 26 can be reduced, and the first planetary gear 26 can be protected.

[0068] Specifically, the first planetary gear 26 meshes with the first sun gear 24 and the ring gear 30 and revolves between the first sun gear 24 and the ring gear 30. The first friction sheet 32 is arranged on the circumferential surface of the first planetary gear 26 facing the first sun gear 24, and the first friction sheet 32 has good friction performance and can bear and transfer the kinetic friction, so that the friction between the end surface of the first planetary gear 26 and the surface of the base on which the sun gear is located can be reduced, and the transmission efficiency can be improved.

[0069] Referring to FIG. 2, in some embodiments, the second planetary gear 36 group includes the second sun gear 34, the second planetary gear 36, and the second planetary carrier 38, the second sun gear 34 is fixedly connected with the first planetary carrier 28, the second planetary gear 36 meshes with the second sun gear 34 outward and meshes with the ring gear 30 inward, and the second planetary gear 36 is fixedly connected with the second planetary carrier 38.

[0070] Thus, the second planetary gear 36 can slow down and transmit the output rotational speed of the first planetary carrier 28.

[0071] Specifically, the second sun gear 34 is fixedly connected with the first planetary carrier 28, the second planetary gear 36 meshes with the second sun gear 34 outward and meshes with the ring gear 30 inward, so that the second planetary gear 36 rotates around the second sun gear 34 and revolves between the second sun gear 34 and the ring gear 30, the second planetary gear 36 is fixedly connected with the second planetary carrier 38, and the second planetary gear 36 drives the second planetary carrier 38 to rotate, and the second planetary carrier 38 outputs power.

[0072] In some embodiments, the second planetary gear 36 group further includes a second friction sheet 40, and the second friction sheet 40 is arranged on the circumferential surface of the first planetary carrier 28 facing the second planetary gear 36.

[0073] Thus, the friction between the second planetary gear 36 and the first planetary carrier 28 can be reduced, and the second planetary gear 36 and the first planetary carrier 28 can be protected.

[0074] Specifically, the second planetary gear 36 meshes with the second sun gear 34 and the ring gear 30 and revolves between the second sun gear 34 and the ring gear 30. The second friction sheet 40 is arranged between the second planetary gear 36 and the first planetary carrier 28, and the second friction sheet 40 has good friction performance and can bear and transfer the kinetic friction, so that the friction between the end surface of the second planetary gear 36 and the surface of the first planetary carrier 28 facing the second planetary gear 36 can be reduced, and the transmission efficiency can be improved.

[0075] In some embodiments, the second planetary gear 36 group includes a plurality of second planetary gears 36, and the plurality of second planetary gears 36 are uniformly distributed along the inner periphery of the ring gear 30.

[0076] In this way, the plurality of second planetary gears 36 can jointly bear the load, so that the operation is more stable.

[0077] Specifically, the plurality of second planetary gears 36 are included in the second planetary gear set 36, the plurality of second planetary gears 36 are evenly distributed along the inner periphery of the ring gear 30, and the load is evenly distributed among the plurality of second planetary gears 36, that is, the meshing force transmitted by the second sun gear 34 to the plurality of second planetary gears 36 is equal, which is beneficial to improve the transmission efficiency of the planetary gear mechanism 18.

[0078] Referring to FIG. 3, in some embodiments, the rolling brush includes a brush body 42 and a cleaning element 43, the cleaning element 43 is sleeved on the outer peripheral surface of the brush body 42, the brush body 42 is internally formed with a receiving space, and the driving mechanism 12 is at least partially accommodated in the receiving space.

[0079] In this way, the cleaning effect of the cleaning assembly 10 can be improved.

[0080] Specifically, the rolling brush includes a brush body 42 and a cleaning element 43, the cleaning element 43 is sleeved on the outer peripheral surface of the brush body 42, the driving assembly drives the brush body 42 to rotate, and drives the cleaning element 43 to rotate to clean the working surface. A receiving space is formed in the brush body 42, and the driving mechanism 12 is at least partially accommodated in the receiving space, which can reduce the volume of the cleaning assembly 10, make the cleaning assembly 10 suitable for different working scenes, make the movement of the cleaning assembly 10 more flexible, facilitate the cleaning of the rolling brush on the wall edge, the wall corner and the gap, and improve the cleaning effect.

[0081] Further, the cleaning assembly 10 is connected to the main body of the cleaning device 100 through the bracket 44, the driving mechanism 12 is arranged in the receiving space in the brush body 42, and the bracket 44 can be connected with the driving mechanism 12 at one side of the brush body 42 or at the middle position of the brush body 42. In this way, when cleaning the wall edge and the wall corner, one side or both sides of the rolling brush can directly contact the wall edge and the wall corner without dead angle, so that better cleaning effect can be achieved.

[0082] Referring to FIG. 3, in some embodiments, the cleaning assembly 10 includes a bracket 44, the bracket 44 is provided with a mounting hole, and the driving mechanism 12 is rotatably connected with the bracket 44 through the mounting hole.

[0083] In this way, the edge cleaning of the rolling brush can be realized during cleaning.

[0084] Specifically, the cleaning assembly 10 includes a bracket 44, the driving assembly is accommodated in the receiving space of the brush body 42, and the bracket 44 is connected with the driving mechanism 12 and the main body of the cleaning device 100 respectively, so that the main body can drive the cleaning assembly 10 to move and perform cleaning work.

[0085] The bracket 44 is provided with a mounting hole, the driving mechanism 12 is arranged through the mounting hole, and a part of the driving mechanism 12 is rotatably connected with the bracket 44, and another part of the driving mechanism 12 is accommodated in the accommodating space of the brush body 42.

[0086] The bracket 44 is located at one side of the driving assembly at the mounting position of the driving assembly, and other parts of the driving assembly are accommodated in the accommodating space of the brush body 42, so that one side of the roller brush can be realized to be edge cleaning.

[0087] Please refer to FIG. 3, in some embodiments, the output shaft 17 includes two opposite output ends, the driving mechanism 12 includes two planetary gear mechanisms 18, a first driving shaft 46 and a second driving shaft 48, the two planetary gear mechanisms 18 are connected with the two output ends respectively, and the two planetary gear mechanisms 18 are connected with the first driving shaft 46 and the second driving shaft 48 respectively, the roller brush includes a first roller brush 14a and a second roller brush 14b, the brush body 42 of the first roller brush 14a is connected with the first driving shaft 46, the brush body 42 of the second roller brush 14b is connected with the second driving shaft 48, and the bracket 44 is arranged between the first roller brush 14a and the second roller brush 14b.

[0088] In this way, when cleaning is performed, both sides of the roller brush can be realized to be edge cleaning.

[0089] Specifically, the output shaft 17 of the motor 16 includes two opposite output ends, as shown in FIG. 3, the opposite directions are the left-right directions in the figure, each output end is connected with a planetary gear mechanism 18 respectively, and the two planetary gear mechanisms 18 are connected with the first driving shaft 46 and the second driving shaft 48 respectively.

[0090] The bracket 44 is located at the middle position of the driving assembly at the mounting position of the driving assembly, and other parts of the driving assembly on both sides are accommodated in the accommodating space of the brush body 42. The brush body 42 of the first roller brush 14a and the brush body 42 of the second roller brush 14b are connected with the first driving shaft 46 and the second driving shaft 48 respectively on both sides of the bracket 44, the first driving shaft 46 drives the brush body 42 of the first roller brush 14a to rotate, and the second driving shaft 48 drives the brush body 42 of the second roller brush 14b to rotate, so that when cleaning is performed, both sides of the roller brush can be realized to be edge cleaning.

[0091] Further, when the brush body 42 of the first roller brush 14a and the brush body 42 of the second roller brush 14b are located on both sides of the bracket 44, if the thickness of the bracket 44 in the axial direction of the brush body 42 of the first roller brush 14a and the brush body 42 of the second roller brush 14b is too large, a gap will be generated in the cleaning area of the roller brush on the working surface at the position of the bracket 44, which cannot be covered by the cleaning piece 43.

[0092] In view of the above, the size of the support 44 is designed to reduce the thickness of the support 44 in the axial direction of the brush body 42 of the first roller brush 14a and the brush body 42 of the second roller brush 14b, and to reduce the distance between the brush body 42 of the first roller brush 14a and the brush body 42 of the second roller brush 14b on the side close to the support 44, so that the gap caused by the support 44 in the cleaning area formed by the roller brushes on the working surface is reduced or eliminated.

[0093] In one embodiment, as shown in FIG. 4, the outer circumferential surface of the brush body 42 of the first roller brush 14a is sleeved with the first cleaning member 43, the outer circumferential surface of the brush body 42 of the second roller brush 14b is sleeved with the second cleaning member 43, and the gap between the first cleaning member 43 and the second cleaning member 43 at the position of the support 44 is 3 mm. Since the first cleaning member 43 and the second cleaning member 43 have cleaning fluff, the cleaning fluff on both sides of the support 44 is spread to cover the gap of 3 mm when the cleaning assembly 10 is working, so that the cleaning area formed by the roller brushes on the working surface is complete without gaps and dead angles.

[0094] Referring to FIGS. 1 and 3, in some embodiments, the length of the first driving shaft 46 is greater than the length of the second driving shaft 48, and the mounting position of the support 44 and the driving mechanism 12 is located on the side where the first driving shaft 46 is located.

[0095] In this way, the volume of the cleaning assembly 10 can be reduced.

[0096] Specifically, when the driving mechanism 12 is mounted on the support 44, if the motor 16 is located at the middle position of the driving assembly, the first driving shaft 46 and the second driving shaft 48 are symmetrically arranged on both sides of the motor 16, the support 44 is connected to the middle position of the motor 16, and the diameter of the mounting hole of the support 44 for connecting the driving assembly needs to be greater than the diameter of the motor 16. In this way, the volume of the roller brush for accommodating the driving mechanism 12 is larger, and the overall volume of the cleaning assembly 10 is larger.

[0097] In view of the above, the length of the first driving shaft 46 is greater than the length of the second driving shaft 48, and the motor 16 is offset, and the mounting position of the support 44 and the driving mechanism 12 is located on the side where the first driving shaft 46 is located. In this way, the diameter of the mounting hole and the volume of the roller brush can be reduced, and the overall volume of the cleaning assembly 10 can be reduced.

[0098] In one embodiment, the support 44 is connected to the middle position of the motor 16, and the diameter of the roller brush is 78 mm. When the mounting position of the support 44 and the driving mechanism 12 is located on the side where the first driving shaft 46 is located, the diameter of the roller brush can be reduced to 65 mm.

[0099] Referring to FIG. 2, in some embodiments, the ring gear 30 is provided with a through hole 50, the first drive shaft 46 and the second drive shaft 48 are fixedly connected with the second planet carrier 38 through the through hole 50, and the planetary gear mechanism 18 comprises a bearing 52 installed between the ring gear 30 and the first drive shaft 46 and between the ring gear 30 and the second drive shaft 48.

[0100] In this way, the bearing 52 can improve the transmission effect of the first drive shaft 46 and the second drive shaft 48.

[0101] Specifically, the first drive shaft 46 and the second drive shaft 48 are fixedly connected with the second planet carrier 38 and fixedly connected with the brush body 42 through the ring gear 30, and the bearing 52 is arranged between the ring gear 30 and the first drive shaft 46 and the second drive shaft 48. The bearing 52 is used to support the first drive shaft 46 and the second drive shaft 48, effectively reduce the mechanical load friction coefficient in the transmission process, and thus improve the overall efficiency of the mechanical equipment.

[0102] Meanwhile, the bearing 52 can make the first drive shaft 46 and the second drive shaft 48 rotate stably and with low noise, so as to improve the user experience.

[0103] In summary, the working principle of the planetary gear mechanism 18 is as follows: the motor 16 drives the first sun gear 24 to rotate, the first sun gear 24 is externally meshed with the first planet gear 26, and the first planet gear 26 is internally meshed with the ring gear 30, the first planet gear 26 rotates to drive the first planet carrier 28 to rotate, the second sun gear 34 is fixedly connected with the first planet carrier 28, the second sun gear 34 is externally meshed with the second planet gear 36, and the second planet gear 36 is internally meshed with the ring gear 30, the second planet gear 36 rotates to drive the second planet carrier 38 to rotate, the second planet carrier 38 is fixedly connected with the first output shaft 17 and the second output shaft 17, and the speed reduction transmission is realized.

[0104] The bearing 52 is arranged on the inner and outer sides of the ring gear 30, supports the rotation of the first output shaft 17 and the second output shaft 17, and realizes the axial fixation of the first output shaft 17 and the second output shaft 17 through the gasket 54 and the retainer 56; the first friction plate 32 and the second friction plate are used to reduce the end face friction of the first planet gear 26 and the second planet gear 36 and improve the efficiency.

[0105] When the cleaning assembly 10 works, the motor 16 is connected with the planetary gear mechanism 18, the motor 16 drives the two first sun gears 24 on the same shaft to rotate at the same speed and in opposite directions, the planetary gear mechanisms 18 on both sides operate in a mirror image mode, and the output shaft 17 drives the brush bodies 42 of the first roller brush 14a and the second roller brush 14b to rotate at the same speed and in the same direction.

[0106] In summary, the planetary gear mechanism 18 is used to reduce the transmission, increase the output torque of the second planetary gear 36 group driving the roller brush, and avoid the phenomenon of being stuck or stopping when the roller brush rotates. The motor 16 has two output ends, which can realize the edge cleaning of both sides of the roller brush. The two output shafts 17 of the drive assembly are different in length, which realizes the offset of the motor 16, effectively reduces the volume of the drive assembly, and makes the cleaning assembly 10 more flexible to use.

[0107] The cleaning device 100 provided by the embodiment of the present application comprises the cleaning assembly 10 of any of the above embodiments.

[0108] In the cleaning device 100, the output shaft 17 of the motor 16 is connected and driven to rotate the roller brush through the first planetary gear 26 group and the second planetary gear 36 group, and the first planetary gear 26 group and the second planetary gear 36 group are used to increase the reduction ratio, thereby increasing the output torque of the second planetary gear 36 group driving the roller brush, and avoiding the phenomenon of being stuck or stopping when the roller brush rotates.

[0109] Specifically, the cleaning device 100 includes but is not limited to a floor washing machine, a dust collector, a sweeping robot, or other devices with cleaning functions.

[0110] It should be noted that the above explanations and beneficial effects of the embodiments of the cleaning assembly 10 also apply to the cleaning device 100 of the embodiment of the present application. To avoid redundancy, they will not be expanded here.

[0111] In the related art, the scrubber uses an electromagnetic pump to supply water, and the flow precision is poor, which leads to too much residual water on the ground after using the scrubber or poor cleaning effect. With product iteration, new water pumps such as peristaltic pumps and diaphragm pumps have appeared, which have greatly improved the flow control precision.

[0112] However, the existing peristaltic pump adopts a transmission sequence of fixed gear ring, sun gear, planetary gear, planetary carrier, and roller, and when the liquid in the liquid path is transported, the planetary gear needs to be meshed with the fixed gear ring and the sun gear at the same time. When installing the planetary gear, it is difficult to simultaneously ensure that the planetary gear system simultaneously realizes the meshing of the inner and outer teeth and the accurate center distance of the planetary gear, so a special auxiliary tool is needed for assembling the planetary gear, which has low assembly efficiency and high labor cost.

[0113] Please refer to FIGS. 5 to 7, a peristaltic pump 101 provided by the embodiment of the present application comprises a base 121, a planetary gear assembly, and a driving member 161. The planetary gear assembly comprises a third sun gear 181, a third planetary gear 201, and an inner tooth disc 221.

[0114] The output shaft of the driving member 161 is fixedly connected with the third sun gear 181.

[0115] The base 121 is fixedly connected with the driving member 161, and the base 121 is provided with a first positioning portion 171. The third planetary gear 201 is rotatably sleeved on the first positioning portion 171 and is in meshing connection with the third sun gear 181. The inner tooth disc 221 covers the third planetary gear 201 and is in meshing connection with the third planetary gear 201.

[0116] In the peristaltic pump 101, the third planetary gear 201 is rotatably sleeved on the first positioning portion 171, so that the positioning of the third planetary gear 201 is facilitated, the installation of the planetary gear assembly can be conveniently completed without the need of an auxiliary tool, and the assembly efficiency can be improved.

[0117] Specifically, the peristaltic pump 101 includes a hose 341 made of an elastic material, and the hose 341 has one or more squeezing rollers outside. When the squeezing rollers move along the length direction of the hose 341, pressure is applied to the hose 341 on the pump head, a negative pressure area is formed in the hose 341, liquid can be sucked in, and the liquid flows in the hose 341. Under the continuous movement of the squeezing rollers 241, the peristaltic pump 101 realizes the function of conveying liquid. The planetary gear assembly is driven to move by the driving member 161, and the squeezing rollers are driven to rotate by the planetary gear assembly, so that the frequency of the squeezing rollers squeezing the hose 341 can be well controlled.

[0118] The planetary gear assembly includes the third sun gear 181, the third planetary gear 201 and the inner tooth disc 221. The third sun gear 181 is fixedly connected with the output shaft of the driving member 161. When the driving member 161 works, the third sun gear 181 is driven to rotate by the output shaft. The third sun gear 181 is in meshing connection with the third planetary gear 201, and the third planetary gear 201 is in meshing connection with the inner tooth disc 221, so as to realize power transmission.

[0119] Due to the multi-point meshing and load dispersion characteristics of the third planetary gear 201, the transmission efficiency is generally high, and the third planetary gear 201 can withstand a larger torque and load. The uniform distribution of the third planetary gear 201 makes the transmission process more stable. In addition, the planetary gear assembly has small volume, light weight and compact structure, and is suitable for application in devices such as scrubbers which have certain restrictions on the volume of the transmission mechanism.

[0120] The base 121 of the peristaltic pump 101 is fixedly connected with the driving member 161, the output shaft of the driving member 161 is fixedly connected with the third sun gear 181, and when the third planetary gear 201 is installed in the base 121 through the first positioning portion 171, the third planetary gear 201 can be first meshed with the third sun gear 181, and then the inner tooth disc 221 is covered outside the third planetary gear 201 and is meshed with the third planetary gear 201.

[0121] The first positioning portion 171 defines the position of the third planetary gear 201 in the base 121, and when the third planetary gear 201 is installed, no additional auxiliary tool is needed, so that the efficiency of installing the third planetary gear 201 can be improved.

[0122] Further, in terms of installation sequence, when the third planetary gear 201 is installed on the base 121 through the first positioning portion 171, the third planetary gear 201 is engaged with the third sun gear 181. When the inner toothed disc 221 is installed, the inner toothed disc 221 only needs to rotate one to two teeth to be successfully engaged with the third planetary gear 201. In this way, the third sun gear 181, the third planetary gear 201 and the inner toothed disc 221 can be quickly and simply installed.

[0123] Optionally, the power source of the driving member 161 includes but is not limited to electric power, hydraulic power, pneumatic power, etc.

[0124] In an embodiment, the driving member 161 is an electric motor. Optionally, the electric motor includes but is not limited to a brush DC motor, a brushless motor, a stepping motor, a magnetic encoder motor, etc.

[0125] Referring to FIG. 7, in some embodiments, the peristaltic pump 101 includes a roller 241, the planetary gear assembly includes a third planet carrier 261, the third planet carrier 261 is provided with a mounting portion 281, the roller 241 is movably mounted on the mounting portion 281, the inner toothed disc 221 is provided with a second positioning portion 301, and the mounting portion 281 is connected to the second positioning portion 301, so that the driving member 161 drives the third planet carrier 261 and the roller 241 to move through the inner toothed disc 221.

[0126] In this way, the mounting portion 281 of the third planet carrier 261 is positioned and connected with the second positioning portion 301, so that the third planet carrier 261 and the roller 241 can be quickly and conveniently connected with the inner toothed disc 221.

[0127] Specifically, the third planet carrier 261 is provided with the mounting portion 281, and the roller 241 is movably mounted on the mounting portion 281. The inner toothed disc 221 is provided with the second positioning portion 301, and the mounting portion 281 is positioned and connected with the inner toothed disc 221 through the second positioning portion 301. In this way, the installation of the roller 241, the third planet carrier 261 and the inner toothed disc 221 is facilitated.

[0128] By transmitting power between the third planetary gear 201 and the roller 241 through the inner toothed disc 221, on the one hand, the inner toothed gear cover is provided with the third planetary gear 201, so that the third sun gear 181, the third planetary gear 201 and the inner toothed disc 221 form a third planetary gear set in a relatively closed space, which has a protective effect on the third planetary gear set, avoiding foreign matter from entering between the third planetary gear set and causing damage to the gears.

[0129] On the other hand, the third sun gear 181, the third planetary gear 201 and the inner tooth disc 221 all rotate, the third planetary carrier 261 and the roller 241 are driven to rotate by the inner tooth disc 221, so that the transmission between the third planetary gear 201 and the roller 241 is isolated by the inner tooth disc 221, and in the case of replacing the model of the roller 241 or changing the diameter of the roller 241, only the position of the second positioning part 301 on the inner tooth disc 221 needs to be adjusted, and the connection between the inner tooth disc 221 and the third planetary carrier 261 can be realized.

[0130] If the third planetary carrier 261 is directly connected with the third planetary gear 201, after replacing the model of the roller 241 or changing the diameter of the roller 241, the third planetary gear 201 set needs to be redesigned and manufactured, which greatly increases the design and manufacturing cost.

[0131] Please refer to FIGS. 6 and 7, in some embodiments, the first positioning part 171 includes a positioning pin, the positioning pin is protruded from the base 121, and the third planetary gear 201 is rotatably sleeved on the positioning pin.

[0132] In this way, the installation of the third planetary gear 201 is facilitated.

[0133] Specifically, the positioning pin can provide an accurate positioning point and a reliable fixing function, so as to ensure that the third planetary gear 201 can be installed to the base 121 according to the design requirements and engaged with the third sun gear 181.

[0134] In the embodiment shown in FIG. 7, a mounting hole is formed in the center of the third planetary gear 201, and the positioning pin is inserted into the mounting hole to position and fix the position of the third planetary gear 201. At the same time, the third planetary gear 201 rotates relative to the positioning pin, and realizes transmission after being engaged with the third sun gear 181.

[0135] The positioning pin accurately positions the third planetary gear 201, which can simplify the assembly process and improve the assembly efficiency. At the same time, in the production process of the peristaltic pump 101, the overall precision and consistency of the product can be significantly improved.

[0136] Alternatively, the positioning pin can be integrally formed with the base 121. Or, the positioning pin can be fixedly arranged on the base 121 by means of gluing, welding or threaded connection.

[0137] Please refer to FIGS. 7, 9 and 10, in some embodiments, the second positioning part 301 includes a positioning groove, the positioning groove is formed on the side of the inner tooth disc 221 facing the third planetary carrier 261, and the mounting part 281 is inserted into the positioning groove to limit the mounting part 281 in the rotation direction of the inner tooth disc 221.

[0138] In this way, the positioning groove can position and fix the mounting portion 281, facilitating the installation of the third planet carrier 261 and the inner tooth disc 221.

[0139] Specifically, when the third planet carrier 261 is installed with the inner tooth disc 221, the roller 241 is first installed to the mounting portion 281, and then the mounting portion 281 is inserted into the positioning groove, thereby completing the installation of the third planet carrier 261 and the inner tooth disc 221.

[0140] In the illustrated embodiment, the positioning groove is a long strip-shaped through groove extending radially outward from the center of the inner tooth disc 221, and the number of the positioning grooves corresponds to the number of the mounting portions 281. When the mounting portion 281 is installed in the positioning groove, the positioning groove limits the mounting portion 281 in the rotation direction of the inner tooth disc 221. In this way, the positioning groove can be suitable for rollers 241 and third planet carriers 261 of different sizes.

[0141] After replacing the rollers 241 of different diameters and the third planet carriers 261 of corresponding sizes, the mounting portions 281 of the third planet carriers 261 can be inserted at different positions in the positioning grooves, thereby realizing the assembly of the inner tooth disc 221 with the rollers 241 and the third planet carriers 261 of different sizes. In this way, the inner tooth disc 221 can be suitable for peristaltic pumps 101 with different flow requirements.

[0142] Alternatively, the positioning groove can be a closed circular groove, and the size of the positioning groove corresponds to the size of the mounting portion 281, that is, when the mounting portion 281 is inserted into the positioning groove, the positioning groove can limit the mounting portion 281 in the rotation direction of the inner tooth disc 221.

[0143] Further, a plurality of closed circular grooves are arranged on the inner tooth disc 221 and extend radially outward from the center of the inner tooth disc 221, thereby making the positioning groove suitable for rollers 241 and third planet carriers 261 of different sizes.

[0144] Alternatively, the positioning groove can be a key groove, and the shape of the bottom of the mounting portion 281 matches the key groove, thereby realizing the limitation of the mounting portion 281 in the rotation direction of the inner tooth disc 221 by the positioning groove.

[0145] It should be noted that the positioning groove is not limited to the long strip-shaped through groove, the closed circular groove, and the key groove, but can also include other forms of positioning grooves that can limit the mounting portion 281 in the rotation direction of the inner tooth disc 221.

[0146] Referring to FIGS. 6 and 7, in some embodiments, the base 121 is fixedly connected with the driving member 161, the base 121 is provided with a first through hole 321, and the third sun gear 181 passes through the first through hole 321 to engage with the third planet gear 201.

[0147] Thus, after the base 121 is fixedly connected with the driving member 161, the third sun gear 181 can be engaged with the third planetary gear 201 installed in the base 121 through the first through hole 321 to drive.

[0148] Specifically, the third sun gear 181 is fixedly connected with the output shaft of the driving member 161, the base 121 is fixedly connected with the driving member 161, and the third sun gear 181 is engaged with the third planetary gear 201 installed in the base 121 through the first through hole 321. After the base 121 is fixedly connected with the driving member 161 and the inner gear is arranged on the outer ring of the third planetary gear 201, the third sun gear 181 and the third planetary gear 201 are located between the base 121 and the inner gear, so that foreign matters can be prevented from falling into the gears to damage the gears.

[0149] Please refer to FIG. 7, FIG. 10 and FIG. 11. In some embodiments, the peristaltic pump 101 comprises a hose 341 and a top cover 361, the top cover 361 is buckled on the base 121, and the hose 341 is arranged between the top cover 361 and the roller 241.

[0150] Thus, the top cover 361 can fix the position of the hose 341, and the movement of the roller 241 can squeeze the hose 341 to realize the function of the peristaltic pump 101.

[0151] Specifically, when the peristaltic pump 101 starts to work, the squeezing roller 241 moves along the length direction of the hose 341 and contacts the hose 341. The contact causes the hose 341 to be compressed and closed, thereby forming a closed space. When the squeezing roller moves away, the hose 341 will return to the original state, which will form a negative pressure in the hose 341, thereby helping to suck the liquid to realize the function of pumping the liquid.

[0152] The top cover 361 is buckled on the base 121, and the hose 341 is arranged between the top cover 361 and the roller 241, so that the roller 241 can squeeze the hose 341 under the driving of the third planetary carrier 261, and the top cover 361 can fix the position of the hose 341 to ensure that the roller 241 stably contacts the hose 341, thereby enabling the peristaltic pump 101 to stably output the liquid.

[0153] Please refer to FIG. 5 and FIG. 7. In some embodiments, the periphery of the top cover 361 is provided with one of a clamping groove 381 and a buckle 401, the periphery of the base 121 is provided with the other one of the clamping groove 381 and the buckle 401, and the buckle 401 is clamped in the clamping groove 381.

[0154] Thus, the base 121 and the top cover 361 of the peristaltic pump 101 are connected through the clamping groove 381 and the buckle 401, so that the installation of the base 121 and the top cover 361 is simple and reliable, and the base 121 and the top cover 361 are convenient to disassemble and maintain.

[0155] Specifically, the base 121 comprises one of the clamping groove 381 and the clamping buckle 401, and the top cover 361 comprises the other one of the clamping groove 381 and the clamping buckle 401. When the top cover 361 of the peristaltic pump 101 is installed on the base 121, the clamping buckle 401 is clamped in the clamping groove 381 to realize the connection of the base 121 and the top cover 361.

[0156] The combination of the clamping groove 381 and the clamping buckle 401 has high stability, which can ensure that the connected base 121 and top cover 361 will not loosen or fall off during normal use. At the same time, the connection of the clamping groove 381 and the clamping buckle 401 usually does not require additional fixing materials, so as to reduce the production cost and material consumption of the peristaltic pump 101. In addition, due to the simplicity of installation and disassembly, the cost of maintenance and replacement can also be reduced.

[0157] Please refer to FIG. 7. In some embodiments, the peristaltic pump 101 comprises a first valve nozzle 421 and a second valve nozzle 441. One end of the hose 341 is connected to the first valve nozzle 421, and the other end of the hose 341 is connected to the second valve nozzle 441.

[0158] In this way, the first valve nozzle 421 and the second valve nozzle 441 can be connected in the liquid path pipeline, and the flow direction, speed or flow rate of the liquid in the hose 341 can be controlled to transport the liquid through the action of the peristaltic pump 101.

[0159] Specifically, the first valve nozzle 421 and the second valve nozzle 441 are arranged at both ends of the hose 341, and the flow direction, speed or flow rate of the liquid in the hose 341 can be controlled by opening or closing the channel in the hose 341 through the first valve nozzle 421 and the second valve nozzle 441, as well as the degree of opening and closing.

[0160] Alternatively, the first valve nozzle 421 is an inlet valve nozzle, and the second valve nozzle 441 is an outlet valve nozzle. Or, the first valve nozzle 421 and the second valve nozzle 441 can both be inlet and outlet, that is, the liquid can flow reversely in the hose 341.

[0161] Please refer to FIG. 10 and FIG. 11. In some embodiments, the top cover 361 is provided with a third positioning part 461, and the second through hole 481 is provided in the third planet carrier 261, and the third positioning part 461 is arranged through the second through hole 481, so that the third planet carrier 261 is rotatably installed on the top cover 361.

[0162] In this way, the top cover 361 realizes the fixing effect on the third planet carrier 261, and ensures the stable movement of the third planet carrier 261.

[0163] Specifically, the second through hole 481 on the third planet carrier 261 is sleeved on the third positioning portion 461, and the mounting portion 281 of the third planet carrier 261 is inserted into the positioning groove of the inner tooth disc 221, so that the third planet carrier 261 and the inner tooth disc 221 rotate together under the driving of the inner tooth disc 221. In this way, the third planet carrier 261 rotates between the top cover 361 and the inner tooth disc 221, and the fixing effect of the third planet carrier 261 can be achieved, so as to ensure the stable movement of the third planet carrier 261 between the top cover 361 and the inner tooth disc 221.

[0164] Please refer to FIG. 6. In some embodiments, the base 121 is provided with a third through hole 501, the shell of the driving member 161 is provided with a fourth through hole 521, and the peristaltic pump 101 comprises a fastener (not shown in the figure), which is used to fixedly connect the base 121 and the driving member 161 by penetrating the third through hole 501 and the fourth through hole 521.

[0165] In this way, the fastener is used to fix the base 121 and the driving member 161, so as to make the connection between the base 121 and the driving member 161 firm and reliable.

[0166] Specifically, the base 121 is provided with a third through hole 501, the shell of the driving member 161 is provided with a fourth through hole 521, and the base 121 and the shell of the driving member 161 are connected by the fastener, which can ensure the accurate alignment between the connected parts, and the fastener connection can provide stable fastening force to ensure the durability and reliability of the connection, even in the case of vibration or impact.

[0167] In one embodiment, the fastener is a screw.

[0168] In summary, the third sun gear 181 is mounted on the output shaft of the driving member 161, the base 121 and the driving member 161 are fixedly connected by the fastener, the third planet gear 201 is loosely fitted on the first positioning portion 171 of the base 121, and the inner tooth disc 221 is placed on the third planet gear 201; the third planet carrier 261 is loosely fitted on the second positioning portion 301 of the top cover 361, the roller 241 is sleeved on the mounting portion 281 of the third planet carrier 261, and the mounting portion 281 is clamped in the first positioning portion 171 on the end surface of the inner tooth disc 221; the hose 341 is arranged between the roller 241 and the inner wall of the top cover 361, and the first valve nozzle 421 and the second valve nozzle 441 are arranged at the two ends of the hose 341.

[0169] When the peristaltic pump 101 works, if the motor drives the third sun gear 181 to rotate clockwise, the third planet gear 201 rotates counterclockwise on the first positioning portion 171, the third planet gear 201 drives the inner tooth disc 221 to rotate counterclockwise, and the inner tooth disc 221 drives the third planet carrier 261 and the roller 241 thereon to rotate synchronously, so that the roller 241 extrudes the hose 341 to realize the liquid path rotation.

[0170] The first positioning part 171 of the base 121 solves the positioning problem of the third planetary gear 201, and since the third sun gear 181 is engaged with the third planetary gear 201 in advance, the inner tooth disc 221 only needs to be rotated by a small angle to be engaged with the three third planetary gears 201 at the same time, greatly improving the installation efficiency.

[0171] The second positioning part 301 on the inner tooth disc 221 can adapt to any center distance of the roller 241, and the flow adjustment is not limited by the gear ratio.

[0172] Since the third planet carrier 261 is manufactured by a powder metallurgy mold and the third planetary gear 201 is manufactured by an injection mold, the third planet carrier 261 is re-manufactured for the roller 241 with different center distances, which greatly reduces the adjustment cost compared with re-designing and manufacturing the third planetary gear 201.

[0173] The cleaning device 100 of the embodiment includes the peristaltic pump 101 of any of the above embodiments.

[0174] The third planetary gear 201 of the cleaning device 100 is rotatably sleeved in the first positioning part 171, facilitating the positioning of the third planetary gear 201, the inner tooth disc 221 is provided with the second positioning part 301, and the third planet carrier 261 is positioned and connected with the second positioning part 301, facilitating the positioning of the third planet carrier 261 and the inner tooth disc 221, and the planetary gear assembly and the roller 241 can be simply and conveniently installed without auxiliary tooling, which can improve the assembly efficiency.

[0175] Specifically, the cleaning device 100 includes but is not limited to a floor washing machine, a dust collector, a sweeping robot, or other devices with cleaning functions.

[0176] In one embodiment, the cleaning device 100 includes a floor washing machine, the peristaltic pump 101 is installed on the body of the floor washing machine, the first valve nozzle 421 and the second valve nozzle 441 are connected to the liquid pipeline of the floor washing machine, and water can be supplied when the floor washing machine cleans the working surface or the mop.

[0177] It should be noted that the above explanations and advantages of the embodiments of the peristaltic pump 101 also apply to the cleaning device 100 of the embodiments of the present application, and to avoid redundancy, they will not be expanded here.

[0178] In the description of the specification, reference to "one embodiment", "some embodiments", "certain embodiments", "an example", "a specific example", or "some examples" means that a particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "in some embodiments", "in certain embodiments", "in an example", "in a specific example", or "in some examples" in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0179] Although embodiments of the application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made hereto without departing from the principles and scope of the application, which is defined by the following claims and their equivalents.

Claims

1. A cleaning assembly characterized by, The drive mechanism comprises a motor and a planetary gear mechanism, and the brush roll is driven to rotate by the planetary gear mechanism. The motor comprises an output shaft, the planetary gear mechanism comprises a first planetary gear set and a second planetary gear set, the first planetary gear set is connected to the output shaft, the first planetary gear set is drivingly connected to the second planetary gear set, and the second planetary gear set is connected to and used to drive the brush roll to rotate.

2. The cleaning assembly of claim 1, wherein, The first planetary gear set comprises a first sun gear, a first planetary gear, a first planetary carrier and a ring gear, the first sun gear is fixedly connected to the output shaft, the first planetary gear is externally meshed with the first sun gear, the first planetary gear is internally meshed with the ring gear, and the first planetary gear is fixedly connected to the first planetary carrier.

3. The cleaning assembly of claim 2, wherein, The first planetary gear set further comprises a first friction plate, and the first friction plate is arranged on the circumferential surface of the first planetary gear facing the first sun gear.

4. The cleaning assembly of claim 2, wherein, The second planetary gear set comprises a second sun gear, a second planetary gear and a second planetary carrier, the second sun gear is fixedly connected to the first planetary carrier, the second planetary gear is externally meshed with the second sun gear, the second planetary gear is internally meshed with the ring gear, and the second planetary gear is fixedly connected to the second planetary carrier.

5. The cleaning assembly of claim 4, wherein, The second planetary gear set further comprises a second friction plate, and the second friction plate is arranged on the circumferential surface of the first planetary carrier facing the second planetary gear.

6. The cleaning assembly of claim 4, wherein, The brush roll comprises a brush body and a cleaning element, the cleaning element is sleeved on the outer circumferential surface of the brush body, an accommodation space is formed in the brush body, the drive mechanism is at least partially accommodated in the accommodation space, the cleaning assembly comprises a support, the support is provided with a mounting hole, and the drive mechanism is rotatably connected to the support through the mounting hole.

7. The cleaning assembly of claim 6, wherein, The output shaft comprises two opposite output ends, the drive mechanism comprises two planetary gear mechanisms, a first drive shaft and a second drive shaft, the two planetary gear mechanisms are respectively connected to the two output ends, and the two planetary gear mechanisms are respectively connected to the first drive shaft and the second drive shaft, the brush roll comprises a first brush roll and a second brush roll, the brush body of the first brush roll is connected to the first drive shaft, the brush body of the second brush roll is connected to the second drive shaft, and the support is arranged between the first brush roll and the second brush roll.

8. The cleaning assembly of claim 7, wherein, The length of the first drive shaft is greater than the length of the second drive shaft, and the mounting position of the support and the drive mechanism is located on the side where the first drive shaft is located.

9. The cleaning assembly of claim 7 or 8, wherein, The ring gear is provided with a through hole, the first drive shaft and the second drive shaft pass through the through hole and are respectively fixedly connected to the second planetary carrier, the planetary gear mechanism comprises a bearing, and the bearing is mounted between the ring gear and the first drive shaft and between the ring gear and the second drive shaft.

10. A peristaltic pump characterized by, The drive member comprises a base, a planetary gear assembly and a driving member, the planetary gear assembly comprises a third sun gear, a third planetary gear and an inner tooth disc. The output shaft of the driving member is fixedly connected to the third sun gear. The base is fixedly connected with the driving member, the base is provided with a first positioning part, the third planetary gear is rotatably sleeved on the first positioning part and engaged with the third sun gear, and the inner toothed disc covers the third planetary gear and is engaged with the third planetary gear.

11. The peristaltic pump of claim 10, wherein, The peristaltic pump comprises a roller, the planetary gear assembly comprises a third planetary carrier, the third planetary carrier is provided with a mounting part, the roller is movably mounted on the mounting part, the inner toothed disc is provided with a second positioning part, and the mounting part is connected with the second positioning part, so that the driving member drives the third planetary carrier and the roller to move through the inner toothed disc.

12. A peristaltic pump according to claim 10 or 11, characterised in that, The first positioning part comprises a positioning pin, the positioning pin is protruded on the base, and the third planetary gear is rotatably sleeved on the positioning pin.

13. The peristaltic pump of claim 11, wherein, The second positioning part comprises a positioning groove, the positioning groove is opened on one side of the inner toothed disc facing the third planetary carrier, the mounting part is inserted in the positioning groove, and the positioning groove limits the mounting part in the rotating direction of the inner toothed disc.

14. A peristaltic pump according to any one of claims 10-13, characterized in that, The base is fixedly connected with the driving member, the base is provided with a first positioning part, the third planetary gear is rotatably sleeved on the first positioning part and engaged with the third sun gear, and the inner toothed disc covers the third planetary gear and is engaged with the third planetary gear.

15. The peristaltic pump of claim 11, wherein, The peristaltic pump comprises a hose and a top cover, the top cover is buckled on the base, and the hose is arranged between the top cover and the roller.

16. The peristaltic pump of claim 15, wherein, The periphery of the top cover is provided with one of a clamping groove and a buckle, the periphery of the base is provided with the other one of the clamping groove and the buckle, and the buckle is clamped in the clamping groove.

17. A peristaltic pump according to claim 15 or 16, wherein, The peristaltic pump comprises a first valve nozzle and a second valve nozzle, one end of the hose is connected with the first valve nozzle, and the other end of the hose is connected with the second valve nozzle.

18. A peristaltic pump according to any one of claims 15-17, characterized in that, The top cover is provided with a third positioning part, the third planetary carrier is provided with a second through hole, the second through hole is penetrated through the third positioning part, and the third planetary carrier is rotatably mounted on the top cover.

19. A peristaltic pump according to any one of claims 10-18, characterized in that, The base is provided with a third through hole, the shell of the driving member is provided with a fourth through hole, the peristaltic pump comprises a fastener, the fastener is penetrated through the third through hole and the fourth through hole to fixedly connect the base and the driving member.

20. A cleaning apparatus, characterized by The cleaning assembly comprises the peristaltic pump.

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