Cleaning device

Abstract

The utility model relates to cleaning equipment which comprises a main body with a cavity, a moving assembly arranged on the main body and a cleaning roller arranged in the cavity, and the cleaning roller comprises a roller, a sweeping piece arranged in the circumferential direction of the roller and synchronously rotating with the roller and a blade assembly arranged on the roller and extending in the axial direction of the roller; in the rotating process of the roller, the maximum value of the rotating diameter formed by the blade assembly is a first rotating diameter D1, the free end of the sweeping piece is provided with a second rotating diameter D2, the difference value between the second rotating diameter D2 and the first rotating diameter D1 is larger than or equal to 7.5 mm, and the difference value of the maximum rotating diameter of the blade assembly and the maximum rotating diameter of the sweeping piece is large. The distance between the blade assembly and the to-be-cleaned face is increased, and the probability of cutting damage of the blade assembly to the carpet can be effectively reduced.

Description

Technical Field

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

[0002] Vacuum cleaners or robot vacuums are now widely used in homes for indoor cleaning. These vacuum cleaners use a vacuum fan as their power output, generating a certain degree of vacuum. This is connected to a specially designed brush roller via an air duct, effectively removing dust and foreign matter from the surface being cleaned.

[0003] During the high-speed rotation of this brush roller, the rubber sheet and bristles continuously beat the surface to be cleaned, stirring up dust and raising dust so that the air flow sucked into the dust box by the vacuum fan can be brought into the dust box, and the dust and foreign matter can be separated through the filtering device inside the dust box.

[0004] Human and pet hair is often among these household foreign objects. Human and pet hair is long, thin, strong, and soft, making it particularly easy to get tangled in the bristles, thus affecting the brushing effect and cleaning efficiency.

[0005] Therefore, people set a cutting device on the brush roller to cut the entangled hair. However, the top of the existing cutting device is closer to the surface to be cleaned. When the surface to be cleaned is a carpet, the cutting device is likely to cause cutting damage to the surface to be cleaned. Utility Model Content

[0006] In view of this, the present application provides a cleaning device that can effectively reduce the probability of cutting damage to the surface to be cleaned by the blade assembly.

[0007] To achieve the above objectives, the present application provides a cleaning device, comprising:

[0008] a main body having a cavity;

[0009] The moving component is arranged on the main body, supports and drives the main body to move on the surface to be cleaned,

[0010] a cleaning roller disposed in the cavity, comprising a drum, a cleaning member disposed in the circumferential direction of the drum and rotating synchronously with the drum, and a blade assembly disposed on the drum and extending along the axial direction of the drum;

[0011] During the rotation of the drum, the maximum value of the rotation diameter formed by the blade assembly is the first rotation diameter D1, the free end of the cleaning member has a second rotation diameter D2, and the difference between the second rotation diameter D2 and the first rotation diameter D1 is greater than or equal to 7.5 mm.

[0012] In a possible implementation, the first rotation diameter D1 is less than or equal to 25 mm.

[0013] In a possible implementation, the maximum value of the rotation diameter formed by the drum during the rotation process is a third rotation diameter D3, and the difference between the third rotation diameter D3 and the first rotation diameter D1 is less than or equal to 3 mm.

[0014] In a possible implementation, the drum is provided with a slit extending in the axial direction, and the blade assembly is disposed in the drum and at least partially located in the slit.

[0015] In a possible implementation, the height of the main body is H1, the height of the rotation axis of the drum is H2, and the ratio of H2 to H1 is in the range of 0.1-0.4.

[0016] In one possible implementation, the cleaning device also includes a driving mechanism, which includes a roller drive assembly and a blade drive assembly; the roller drive assembly is configured to drive the roller to rotate, and the blade drive assembly is configured to drive the blade assembly to reciprocate in the axial direction of the roller; the blade drive assembly is located outside the roller.

[0017] In one possible implementation, the driving mechanism includes a force flow transmission assembly, which is configured to provide a first driving force and a second driving force to the cleaning roller. The first driving force is transmitted to the blade assembly at a first rotational speed via the blade drive assembly, and the second driving force is transmitted to the roller at a second rotational speed via the roller drive assembly. The first rotational speed and the second rotational speed are different and the first driving force and the second driving force are configured to be connected from one end or both ends of the cleaning roller.

[0018] In a possible implementation, the first rotational speed is less than the second rotational speed, and the speed difference between the first rotational speed and the second rotational speed is between 30 r / min and 50 r / min.

[0019] In a possible implementation, a docking assembly is provided between the roller and the driving mechanism, and the docking assembly is configured to detachably connect the first cleaning roller to the driving mechanism.

[0020] In a possible implementation, the docking assembly includes a first transmission member and a second transmission member detachably connected to the first transmission member, the first transmission member is provided at an input end of the cleaning roller, and the second transmission member is provided at an output end of the driving mechanism;

[0021] The first transmission member includes an input interface of the blade transmission mechanism and an input interface of the roller transmission mechanism;

[0022] The second transmission member includes a first output interface and a second output interface; the input interface of the blade transmission mechanism and the first output interface are configured to be detachable and capable of transmitting torque to receive the first driving force; the input interface of the roller transmission mechanism and the second output interface are configured to be detachable and capable of transmitting torque to receive the second driving force;

[0023] During the cutting process of the blade assembly, the speed difference between the first output interface and the second output interface is between

[0024] 30r / min~50r / min.

[0025] The present application provides a cleaning device, including a first cleaning roller, the first cleaning roller including:

[0026] The drum is provided with a cleaning member in the circumferential direction, and the cleaning member rotates with the drum to clean the surface to be cleaned during the rotation of the drum;

[0027] The blade assembly is arranged on the drum and extends along the axial direction of the drum;

[0028] During the rotation of the drum, the maximum value of the rotation diameter formed by the blade assembly is the first rotation diameter D1, the free end of the cleaning member has a second rotation diameter D2, and the difference between the second rotation diameter D2 and the first rotation diameter D1 is greater than or equal to 7.5 mm.

[0029] In a possible implementation, the first rotation diameter D1 is less than or equal to 25 mm.

[0030] In one possible implementation, the cleaning device further includes a driving mechanism, the driving mechanism including a drum driving assembly and a blade driving assembly; the drum driving assembly is configured to drive the drum to rotate, and the blade driving assembly is configured to drive the blade assembly to reciprocate in the axial direction of the drum;

[0031] The blade drive assembly is located outside the drum;

[0032] A docking assembly is provided between the drum and the driving mechanism, and the docking assembly is configured to detachably connect the first cleaning roller to the driving mechanism.

[0033] In one possible implementation, the driving mechanism includes a force flow transmission assembly, the force flow transmission assembly being configured to provide a first driving force and a second driving force to the first cleaning roller, the first driving force being transmitted to the blade assembly via the blade drive assembly and the docking assembly at a first rotational speed, the second driving force being transmitted to the roller via the roller drive assembly and the docking assembly at a second rotational speed, the first rotational speed and the second rotational speed being different;

[0034] The first driving force and the second driving force are configured to be input from one end or both ends of the first cleaning roller.

[0035] In a possible implementation, the docking assembly includes a first transmission member and a second transmission member, wherein the first transmission member is provided at an input end of the first cleaning roller, and the second transmission member is provided at an output end of the driving mechanism;

[0036] The first transmission member includes an input interface of the blade transmission mechanism and an input interface of the roller transmission mechanism;

[0037] The second transmission member includes a first output interface and a second output interface; the first output interface and the second output interface are connected to the input interface of the blade transmission mechanism and the input interface of the roller transmission mechanism from one end or both ends of the first cleaning roller respectively;

[0038] During the cutting process of the blade assembly, the speed difference between the first output interface and the second output interface is between

[0039] 30r / min~50r / min.

[0040] In a possible implementation, the docking assembly includes a first transmission member and a second transmission member, wherein the first transmission member is provided at an input end of the first cleaning roller, and the second transmission member is provided at an output end of the driving mechanism;

[0041] The first transmission member is configured to be detachably and coaxially connected to the second transmission member at one end of the first cleaning roller, so that the first driving force and the second driving force are input from one end of the first cleaning roller.

[0042] In a possible implementation, the first transmission member includes an input interface of a blade transmission mechanism and an input interface of a drum transmission mechanism, and the blade transmission mechanism is disposed inside the drum;

[0043] The second transmission member includes a first output interface and a second output interface, wherein the first output interface and the second output interface are configured to be detachably and coaxially connected;

[0044] The input interface of the blade transmission mechanism and the first output interface are configured to be detachable and transmit torque to receive the first driving force; the input interface of the roller transmission mechanism and the second output interface are configured to be detachable and transmit torque to receive the second driving force.

[0045] In one possible implementation, the first output interface includes a first connector, the input interface of the blade transmission mechanism is provided with a first limiting portion, the first connector is plugged into the first limiting portion to output the first driving force, and the second output interface includes a second connector, the input interface of the roller transmission mechanism is provided with the second limiting portion, the second connector is plugged into the second limiting portion to output the second driving force.

[0046] In a possible implementation, the drum drive assembly includes a first gear, and the first gear is disposed on the second connector;

[0047] The first gear receives power input from the motor to drive the second connector to rotate synchronously;

[0048] The blade drive assembly includes a planetary reduction mechanism, which is provided with a sun gear, and the sun gear is configured to be fixed relative to its positioning point on the drive mechanism to transmit torque, and the torque is converted into the first driving force output by the first connector through the planetary reduction mechanism.

[0049] In one possible implementation, the sun gear, the first gear at the joint part of the second connector, and the output end of the planetary reduction mechanism at the joint part of the first connector are configured to transmit torque in the axial direction of the drum, and the sun gear, the torque access part of the first output interface, and the torque access part of the second output interface are configured to approach the first transmission member from far to near.

[0050] In a possible implementation, the first driving force and the second driving force are input from one end of the first cleaning roller;

[0051] The blade drive assembly includes a second gear, and the roller drive assembly includes a third gear. The second gear and the third gear are coaxially arranged, and the second gear and the third gear have different rotational speeds.

[0052] In a possible implementation, the speed difference between the second gear and the third gear is between 30 r / min and 50 r / min.

[0053] In one possible implementation, the docking assembly includes a first transmission member and a second transmission member, the first transmission member is arranged at the input end of the first cleaning roller, and the second transmission member is arranged at the output end of the driving mechanism; the first transmission member is configured to be detachably and coaxially connected to the second transmission member at one end of the first cleaning roller, so that the first driving force and the second driving force are connected from one end of the first cleaning roller.

[0054] In a possible implementation, the first transmission member includes an input interface of a blade transmission mechanism and an input interface of a drum transmission mechanism, and the blade transmission mechanism is disposed inside the drum;

[0055] The second transmission member includes a first output interface and a second output interface, wherein the first output interface and the second output interface are configured to be detachably and coaxially connected;

[0056] The input interface of the blade transmission mechanism and the first output interface are configured to be detachable and transmit torque to receive the first driving force; the input interface of the roller transmission mechanism and the second output interface are configured to be detachable and transmit torque to receive the second driving force.

[0057] In a possible implementation, the first output interface includes a first connector, and the second output interface includes a second connector;

[0058] The engaging portion between the second gear and the first connector, the third gear and the second connector are located closer to the first transmission member from far to near in the axial direction of the drum.

[0059] In a possible implementation, the first driving force and the second driving force are input from both ends of the first cleaning roller; wherein,

[0060] The docking assembly includes a first transmission member and a second transmission member;

[0061] The first transmission member includes an input interface of a blade transmission mechanism provided at a first end of the first cleaning roller and an input interface of a roller transmission mechanism provided at a second end of the first cleaning roller;

[0062] The second transmission member includes a first output interface and a second output interface; the first output interface and the second output interface are connected to the input interface of the blade transmission mechanism and the input interface of the drum transmission mechanism from two ends of the first cleaning roller respectively.

[0063] In one possible implementation, the blade drive assembly includes a fifth gear, which is disposed on the first output interface, and the first output interface includes a first connector; the roller drive assembly includes a sixth gear, which is disposed on the second output interface, and the second output interface includes a second connector;

[0064] The first connector is configured to be detachable from the input interface of the blade transmission mechanism and capable of transmitting torque to output the first driving force;

[0065] The second connector is configured to be detachable from the input interface of the roller transmission mechanism and capable of transmitting torque to output the second driving force.

[0066] In a possible implementation, the force flow transmission assembly further includes: a second cleaning roller configured to transmit the first driving force to the fifth gear when rotating.

[0067] In a possible implementation, a cutting member is provided on the second cleaning roller, and the cutting member moves on the second cleaning roller to cut hair.

[0068] In a possible implementation, the blade assembly includes at least one set of blades, and the blades reciprocate in the axial direction of the drum to cut the windings on the drum.

[0069] The cleaning device of the present application has a large difference between the second rotation diameter D2 of the free end of the cleaning element and the first rotation diameter D1 of the top end of the blade assembly, which is greater than or equal to 7.5 mm. The difference between the maximum rotation diameters of the blade assembly and the cleaning element is large, which increases the distance between the blade assembly and the surface to be cleaned, and can effectively reduce the probability of the blade assembly cutting and damaging the carpet. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1 It is a structural diagram of the cleaning equipment of this application.

[0071] Figure 2 It is a schematic diagram of the rotation diameter of the first cleaning roller of the present application.

[0072] Figure 3 It is a schematic diagram of the modularization of the cleaning equipment of this application.

[0073] Figure 4 It is a modular schematic diagram of the force flow transmission component of the present application that connects the first driving force and the second driving force from both ends of the first cleaning roller.

[0074] Figure 5 yes Figure 4 The diagram shown is a schematic diagram of the force flow transmission assembly working with the roller drive assembly and the blade drive assembly.

[0075] Figure 6 It is a schematic cross-sectional structural diagram of the cleaning device of Example 1 of the present application.

[0076] Figure 7 This is a schematic diagram of the partially disassembled side view of the cleaning device of Example 1 of the present application.

[0077] Figure 8 yes Figure 6 Schematic diagram of the partial structure of the cleaning equipment shown.

[0078] Figure 9 This is a schematic diagram of the power flow of the cleaning equipment of Example 1 of the present application.

[0079] Figure 10 It is a schematic cross-sectional structural diagram of the cleaning device of Example 2 of the present application.

[0080] Figure 11 This is a schematic diagram of the partially disassembled side view of the cleaning device of Example 2 of the present application.

[0081] Figure 12 yes Figure 10 Schematic diagram of the partial structure of the cleaning equipment shown.

[0082] Figure 13 This is a schematic diagram of the power flow of the cleaning equipment of Example 2 of the present application.

[0083] Figure 14 It is a schematic cross-sectional structural diagram of the cleaning device of Example 3 of the present application.

[0084] Figure 15 This is a schematic diagram of the partially disassembled side view of the cleaning device of Example 3 of the present application.

[0085] Figure 16 This is a schematic diagram of the cooperation between the intermediate reversing gear and the first cleaning roller and the second cleaning roller of the present application.

[0086] Figure 17 This is a schematic diagram of the power flow of the cleaning equipment of Example 3 of the present application.

[0087] Among them, the main body 1, the cavity 101, the cleaning roller shell 102;

[0088] First cleaning roller 10, roller 11, slit 111, cleaning member 112, blade assembly 12, blade 121, blade transmission mechanism 13, rotating shaft 132, first cam block 133, second cam block 134, first linkage block 135, second linkage block 136;

[0089] Drive mechanism 20, roller drive assembly 21, first gear 211, third gear 212, sixth gear 213, blade drive assembly 22, planetary reduction mechanism 221, sun gear 2211, planetary gear set 2212, ring gear 2213, sun gear shaft 2214, first bearing 2215, end cover 2216, second gear 224, fifth gear 225, force flow transmission assembly 23, fourth gear 231, intermediate gear 234, first transmission gear 237, second transmission gear 238, third transmission gear 239, third bearing 240, output gear 25;

[0090] Docking assembly 30, first transmission member 31, first limiting portion 311, second limiting portion 312, second transmission member 32, first connector 321, fourth bearing 3211, fifth bearing 3212, second connector 322, second bearing 323;

[0091] A second cleaning roller 40, a first docking gear 41, and a second docking gear 42;

[0092] Move component 5. DETAILED DESCRIPTION

[0093] The following describes the implementation of the present application through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present application from the contents disclosed in this specification.

[0094] In the following description, reference is made to the accompanying drawings, which illustrate several embodiments of the present application. It should be understood that other embodiments may be used, and that mechanical, structural, electrical, and operational changes may be made without departing from the spirit and scope of the present application. The following detailed description should not be considered limiting, and the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the present application.

[0095] Although the terms "first", "second", etc. are used herein to describe various elements in some instances, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.

[0096] Furthermore, as used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms "comprise", "include" indicate the presence of features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Thus, "A, B, or C" or "A, B, and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B, and C". Exceptions to this definition occur only when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0097] Cleaning equipment, with its convenient cleaning, time-saving, and labor-saving features, has freed people from tedious household chores and made them a part of everyday life. For example, a robot vacuum cleaner typically features a cleaning roller, which is driven by the cleaning device and rotates relative to the surface to be cleaned. Other cleaning equipment with cleaning rollers can include handheld vacuum cleaners, bucket vacuum cleaners, canister vacuum cleaners, upright vacuum cleaners, and other devices, too numerous to mention here.

[0098] During the rotation of the cleaning roller, the cleaning members (including but not limited to bristles, rubber strips, etc.) thereon are used to slap the surface to be cleaned, and the cutting device on the cleaning roller is used to cut the hair entangled thereon to improve the slapping effect and cleaning efficiency. In the prior art, the top of the blade of the cutting device is close to the surface to be cleaned, that is, the distance between the blade and the surface to be cleaned is small, and the edge of the blade is closer to the surface to be cleaned during rotation, which can easily cause the blade to cut the surface to be cleaned, for example, cutting silk fabrics such as carpets. This is because the structure that provides power for the movement of the blade is arranged inside the drum, which increases the diameter of the drum and reduces the distance between the outer surface of the drum and the surface to be cleaned. The edge of the blade, which is arranged on the drum and protrudes from the outer surface of the drum, is closer to the surface to be cleaned, which can easily cause cutting of carpets, etc.

[0099] To solve the above problem, see Figure 1 The present application provides a cleaning device, which includes a main body 1, a moving component 5 arranged on the main body 1 and supporting and driving the main body 1 to move on the surface to be cleaned, a controller (not shown) arranged on the main body 1 and controlling the main body 1 to perform cleaning work on the surface to be cleaned, and a dust suction component (not shown) arranged on the main body 1 and generating suction. A cavity 101 for installing a cleaning roller is formed on the main body 1, and the cavity 101 is surrounded by a cleaning roller shell 102. The cleaning device also includes a driving mechanism (not shown) for driving the cleaning roller to rotate, and the driving mechanism converts the power of a power source such as a motor into a rotational torque of the cleaning roller. The driving mechanism drives the cleaning roller installed in the cavity 101 to rotate at a high speed, and the cleaning roller slaps the surface to be cleaned to lift the dust on the surface to be cleaned, and the dust suction component generates an airflow through the cavity 101 to bring the dust into the main body 1.

[0100] There may be one cleaning roller, or two or more cleaning rollers. For the convenience of the subsequent description of the embodiment including two cleaning rollers, when there is one cleaning roller, it is also referred to as the first cleaning roller. That is, the cleaning equipment involved below includes an embodiment of the first cleaning roller, an embodiment in which only one cleaning roller is provided, and an embodiment in which two or more cleaning rollers are provided. Figure 1The cleaning roller 10 includes a first cleaning roller 10 and a second cleaning roller 40, with the first cleaning roller 10 being located behind the second cleaning roller 40. Obviously, the first cleaning roller 10 can also be located in front of the second cleaning roller 40. The first cleaning roller 10 and the second cleaning roller 40 can be the same or different. In one embodiment, the second cleaning roller 40 can be provided with a rubber strip, and the second cleaning roller 10 can be provided with soft bristles, so that the cleaning device can simultaneously and efficiently clean carpets and floors. In addition, the second cleaning roller 40, as a front cleaning roller, can mainly play the role of patting the floor, while the first cleaning roller 10, as a rear cleaning roller, plays the role of collecting hair.

[0101] See Figure 2 The first cleaning roller 10 includes a drum 11 and a blade assembly 12. A cleaning element 112 is provided circumferentially around the drum 11. As the drum 11 rotates, the cleaning element 112 rotates with the drum 11 to clean the surface to be cleaned. The blade assembly 12 is mounted on the drum 11 and extends axially along the drum 11. The blade assembly 12 reciprocates axially along the drum 11 to cut away any entangled material on the drum 11.

[0102] During the rotation of the drum 11, the blade assembly 12 rotates synchronously with the drum 11. The maximum rotation diameter formed by the blade assembly 12 is the first rotation diameter D1. That is, the rotation diameter formed at the top of the blade assembly 12 is the first rotation diameter D1. The free end of the cleaning member 112 has a second rotation diameter D2. That is, the maximum rotation diameter formed by the cleaning member 112 during the rotation is the second rotation diameter D2. The difference between the second rotation diameter D2 and the first rotation diameter D1 is greater than or equal to 7.5 mm. In other words, when the blade assembly 12 rotates, the diameter of the circle formed by its topmost portion is the first rotation diameter D1, and the diameter of the circle formed by the end of the cleaning member 112 away from the drum 11 during the rotation is the second rotation diameter D2.

[0103] When the first cleaning roller 10 rotates to clean the surface to be cleaned, the end of the cleaning member 112 away from the roller 11 contacts the surface to be cleaned. The blade assembly 12 is located radially inside the cleaning member 112. The cleaning member 112 comprises a structure such as bristles or a rubber strip, which can be used to brush away dust or remove debris from the surface to be cleaned. If the distance between the blade assembly 12 and the end of the cleaning member 112 away from the roller 11 is small, the blade of the blade assembly 12 may contact the surface to be cleaned during rotation. This can easily cause the blade assembly 12 to cut the carpet when the cleaning device is cleaning it. The cleaning device of the present application has a difference between the second rotation diameter D2 of the cleaning member 112 and the first rotation diameter D1 of the blade assembly 12 that is greater than or equal to 7.5 mm. The distance between the top of the blade assembly 12 and the end of the cleaning member 112 away from the roller 11 is large enough, that is, the distance between the blade assembly 12 and the surface to be cleaned is greater than or equal to 7.5 mm. The distance between the blade assembly 12 and the surface to be cleaned is large enough. While ensuring that the blade assembly 12 can effectively cut the hair and other entanglements wrapped around the first cleaning roller 10, it can also effectively reduce the cutting damage of the blade assembly 12 to the carpet surface to be cleaned.

[0104] In one embodiment, the difference between the second rotation diameter D2 of the cleaning member 112 and the first rotation diameter D1 of the blade assembly 12 is greater than or equal to 8 mm, or greater than or equal to 8.5 mm, or greater than or equal to 9 mm, but is not limited thereto and can be set according to actual needs.

[0105] The first rotation diameter D1 of the blade assembly 12 is less than or equal to 25 mm. The maximum rotation diameter of the blade assembly 12 of the present application is relatively small. Under the premise that the difference between the second rotation diameter D2 and the first rotation diameter D1 is greater than or equal to 7.5 mm, the rotation diameter of the blade assembly 12 can be set to be smaller, thereby reducing the space required for the installation of the blade assembly 12, which can effectively solve the problem of insufficient installation space for the first cleaning roller 10 due to the required rotation diameter of the blade assembly 12 being too large. Therefore, without changing the height of the cavity 101 of the main body 1, the distance between the blade portion of the blade assembly 12 and the surface to be cleaned is increased, effectively reducing the cutting damage of the blade assembly 12 to the surface of the carpet to be cleaned. In one embodiment, the first rotation diameter D1 of the blade assembly is less than or equal to 23 mm, or less than or equal to 21 mm, or less than or equal to 20 mm, or less than or equal to 19 mm, but is not limited to this and can be set according to actual needs.

[0106] The maximum rotational diameter of the drum 11 during rotation is the third rotational diameter D3, and the difference between the third rotational diameter D3 and the first rotational diameter D1 of the blade assembly 12 is less than or equal to 3 mm. While ensuring that the blade assembly 12 does not damage the surface to be cleaned, the smaller rotational diameter of the blade assembly 12 and, consequently, the smaller diameter of the drum 11 can be designed. This effectively addresses the issue of insufficient installation space for the first cleaning roller 10 due to an oversized drum 11, while maintaining the layout and dimensions of the main body 1.

[0107] The drum 11 is provided with a slit 111 extending along the axis. The blade assembly 12 includes at least one set of blades 121. The cutting edges of the blades 121 extend from or are located within the slit 111. Specifically, the cutting edges of the blades 121 may protrude up to 3 mm from the outer circumferential surface of the drum 11, meaning that the third rotation diameter D3 is smaller than the first rotation diameter D1. Alternatively, the cutting edges of the blades 121 are located within the slit 111 and recessed up to 3 mm from the outer circumferential surface of the drum 11, meaning that the third rotation diameter D3 is larger than the first rotation diameter D1. In this embodiment, the blade assembly 12 is disposed within the drum 11, at least partially within the slit 111. This arrangement effectively protects the blades 121, preventing them from contacting obstacles and becoming damaged during operation. It also prevents the blades 121 from injuring pets or users during operation, thereby ensuring the safety of both users and pets.

[0108] The height of the main body 1 of this application is H1, and the height of the rotation axis of the drum 11 is H2. The ratio of H2 to H1 ranges from 0.1 to 0.4. By reducing the diameter of the drum 11, the distance between the blade assembly 12 and the surface to be cleaned is increased. This does not change the structure and size of the cavity 101, nor does it change the installation height of the rotation axis of the drum 11. In other words, there is no need to increase the distance between the blade assembly 12 and the surface to be cleaned by moving the installation position of the drum 11. This effectively reduces the height of the main body 1 and improves the user experience.

[0109] See Figures 1 to 3 In order to achieve the cleaning function of the cleaning member 112 on the surface to be cleaned and the cutting function of the blade assembly 12 on the windings wrapped around the first cleaning roller 10, the cleaning member 112 needs to rotate with the roller 11 relative to the main body 1 in the cavity 101, and the blade assembly 12 needs to reciprocate in the axial direction of the roller 11 to cut the windings on the roller 11. The driving mechanism 20 of the cleaning device includes a roller driving assembly 21 and a blade driving assembly 22. The roller driving assembly 21 is configured to drive the roller 11 to rotate, and the roller 11 drives the cleaning member 112 to rotate synchronously, and the blade driving assembly 22 is configured to drive the blade assembly 12 to reciprocate in the axial direction of the roller 11.

[0110] In the prior art, the blade drive assembly is arranged inside the drum, which requires the diameter of the drum to be made larger, and the difference between the maximum rotation diameter of the cleaning member and the maximum rotation diameter of the blade assembly is reduced. The top of the blade assembly is closer to the ground during rotation. When the ground is carpeted, the blade assembly is likely to cut and damage the carpet.

[0111] However, the present application arranges the blade drive assembly 22 outside the drum 11, so the blade drive assembly 22 does not occupy the internal space of the drum 11. The diameter of the drum 11 of the present application can be designed to be smaller, so that the difference between the maximum value of the rotation diameter of the cleaning member 112 and the maximum value of the rotation diameter of the blade assembly 12 is large enough. When the first cleaning roller 10 is installed on the main body 1 for work, the distance between the top of the blade assembly 12 and the surface to be cleaned is large enough, reducing the problem of the blade assembly 12 cutting the carpet.

[0112] In the present application, a docking assembly 30 is provided between the roller 11 and the drive mechanism 20. The docking assembly 30 is configured to detachably connect the first cleaning roller 10 to the drive mechanism 20. This arrangement facilitates the removal of the first cleaning roller 10 from the main body for replacement or maintenance, and also facilitates the docking of the first cleaning roller 10 with the drive mechanism 20 located on the main body 1 after the first cleaning roller 10 is installed in the cavity 101, so that the roller drive assembly 21 drives the roller 11 to rotate, and the blade drive assembly 22 drives the blade assembly 12 to reciprocate along the axial direction of the roller 11. In addition, since the blade drive assembly 22 is located outside the roller 11, it is not necessary to simultaneously remove the blade drive assembly 22 when replacing the first cleaning roller 10, which greatly reduces the difficulty of maintenance.

[0113] The docking assembly 30 includes a first transmission member 31 and a second transmission member 32. The first transmission member 31 is arranged at the input end of the first cleaning roller 10, and the second transmission member 32 is arranged at the output end of the drive mechanism 20. Through the cooperation of the first transmission member 31 and the second transmission member 32, the input end of the first cleaning roller 10 is docked to the output end of the drive mechanism 20, so that the drive mechanism 20 drives the movement of the roller 11 and the blade assembly 12 in the first cleaning roller 10 through the docking assembly 30. Since the cleaning member 112 is a consumable item, it may be damaged, deformed, worn, etc. during use, affecting the cleaning ability and safety, and requires the user to regularly disassemble and replace it. When the first cleaning roller 10 needs to be disassembled and maintained, the first transmission member 31 and the second transmission member 32 of the docking assembly 30 can be disconnected to connect the first cleaning roller 10 and the drive mechanism 20. The first cleaning roller 10 can then be removed from the cavity 101. The operation is simple. After the maintenance of the first cleaning roller 10, the first cleaning roller 10 can be docked with the first transmission member 31 and the second transmission member 32 to complete the connection between the first cleaning roller 10 and the drive mechanism 20. It should be noted that when one end of the first cleaning roller 10 is connected to the driving mechanism 20 via the docking assembly 30 , the other end of the first cleaning roller 10 can be detachably mounted on the cleaning roller housing 102 .

[0114] The driving mechanism 20 also includes a power output part (not shown) and a force flow transmission component 23. The power output part is used to output rotational power outward. The input end of the force flow transmission component 23 is linked to the power output part. The force flow transmission component 23 is used to divert the rotational power and has at least two power output paths, one of which is connected to the blade drive component 22, and the other power output path is connected to the roller drive component 21; the blade drive component 22 drives the blade component 12 to reciprocate under the drive of the rotational power, and the roller drive component 21 drives the roller 11 to rotate under the drive of the rotational power.

[0115] The force flow transmission assembly 23 is configured to provide a first driving force and a second driving force to the first cleaning roller 10. The first driving force is transmitted to the blade assembly 12 at a first rotational speed via the blade drive assembly 22 and the docking assembly 30, and the second driving force is transmitted to the roller 11 at a second rotational speed via the roller drive assembly 21 and the docking assembly 30. The first rotational speed and the second rotational speed are different; and the first driving force and the second driving force are configured to be connected from one end or both ends of the first cleaning roller 10. The first rotational speed is less than the second rotational speed, and the speed difference between the first rotational speed and the second rotational speed is between 30r / min and 50r / min. This can not only ensure the rotational speed of the roller 11, but also reduce the reciprocating speed of the blade assembly 12, thereby preventing the high-speed reciprocating motion of the blade assembly 12 from generating excessive heat and causing wear. The power input end of the force flow transmission component 23 is connected to the power output part, and the two power output ends of the force flow transmission component 23 are respectively connected to the blade drive component 22 and the roller drive component 21. After the force flow transmission component 23 receives the rotational power input from the power output part, the rotational power is divided into a first driving force and a second driving force, wherein the first driving force is transmitted from one power output end to the blade drive component 22, and the second driving force is transmitted from the other power output end to the roller drive component 21.

[0116] In one embodiment, the power output part is a motor, the roller drive assembly 21 is, for example, a gear, the blade drive assembly 22 is, for example, a planetary reduction mechanism (please refer to the following), and the force flow transmission assembly 23 is, for example, a gear transmission group. The motor transmits the rotational power to the force flow transmission assembly 23, and the force flow transmission assembly 23 is transmitted to the planetary reduction mechanism and the gear respectively through the diversion of the gear transmission group. Part of the rotational power is decelerated by the planetary reduction mechanism and output to the blade assembly 12, and the other part of the rotational power is output to the roller 11 through the gear.

[0117] In another embodiment, the power output part is a motor, the roller drive assembly 21 and the blade drive assembly 22 are both gears, and the force flow transmission assembly 23 is, for example, a gear transmission group. The motor transmits the rotational power to the force flow transmission assembly 23, and the force flow transmission assembly 23 is transmitted to the two gears with different transmission ratios through the diversion of the gear transmission group. The two gears output rotational power with different speeds to the blade assembly 12 and the roller 11 respectively.

[0118] In other embodiments, the power output part is a motor, the roller drive assembly 21 and the blade drive assembly 22 are both gears, and the power flow transmission assembly 23 is, for example, a combination of a first gear transmission part, a second gear transmission part and a transmission shaft (the second cleaning roller 40 described below), and the transmission shaft is linked and connected between the first gear transmission part and the second gear transmission part. The motor transmits the rotational power to the second gear transmission part, and the second gear transmission part transmits part of the rotational power to the roller drive assembly 21, thereby driving the roller 11 to rotate, and the second gear transmission part transmits the other part of the rotational power from the transmission shaft and the first gear transmission part to the blade drive assembly 22, thereby driving the blade assembly 12 to move back and forth.

[0119] The power flow transmission assembly 23 of the present application can transmit the input rotational power from the same end of the first cleaning roller 10 to the roller 11 and the blade assembly 12, or can transmit it from both ends of the first cleaning roller 10 to the roller 11 and the blade assembly 12 respectively, as described below:

[0120] like Figure 3 As shown, the force flow transmission assembly 23 of this embodiment can transmit the input rotational power from the same end of the first cleaning roller 10 to the roller 11 and the blade assembly 12, and the roller brush drive assembly 21 and the blade drive assembly 22 are located at the same end of the first cleaning roller 10.

[0121] Figure 4 This is a schematic diagram of the force flow transmission component of the present application connecting the first driving force and the second driving force from both ends of the first cleaning roller, as shown in FIG. Figure 4 As shown, the force flow transmission assembly 23 of this embodiment transmits the first driving force from one end of the first cleaning roller 10 to the blade assembly 12 via the blade drive assembly 22 and the docking assembly 30, and the force flow transmission assembly 23 transmits the second driving force from the other end of the first cleaning roller 10 to the roller 11 via the roller drive assembly 21 and the docking assembly 30. The roller drive assembly 21 and the blade drive assembly 22 are respectively located at the two ends of the first cleaning roller 10, and the two power output ends of the force flow transmission assembly 23 are docked with the roller drive assembly 21 and the blade drive assembly 22 respectively.

[0122] Figure 5 yes Figure 4 The schematic diagram of the force flow transmission assembly in conjunction with the roller drive assembly and the blade drive assembly is shown in FIG. Figure 5As shown, the output end of the first gear transmission part of the force flow transmission assembly 23 is connected to the blade drive assembly 22, the input end of the first gear transmission part is connected to one end of the transmission shaft, the two output ends of the second gear transmission part are connected to the roller drive assembly 21 and the other end of the transmission shaft respectively, and the input end of the second gear transmission part is connected to the power output part. The rotational power output by the power output part is partially transmitted to the roller drive assembly 21 through the second gear transmission part, and the other part is transmitted to the transmission shaft, the first gear transmission part, and finally reaches the blade drive assembly 22. In this embodiment, the transmission shaft is parallel to and opposite to the first cleaning roller 10.

[0123] The present application uses a force flow transmission component 23 to split the rotational power to form a first driving force and a second driving force. The first driving force and the second driving force are transmitted from the drum drive component 21 and the blade drive component 22 to the drum 11 and the blade component 12 respectively. Through different splitting and transmission deceleration methods, the rotation speed of the drum 11 is different from the reciprocating cutting frequency of the blade component 12. The cutting frequency of the blade component 12 is much lower than the rotation speed of the drum 11. For example, the cutting frequency of the blade component 12 is 2% to 10% of the rotation speed of the drum 11, effectively reducing the heat and blade wear generated by the excessively high cutting frequency of the blade component 12. The cleaning device of the present application is characterized by force splitting on the outside of the drum 11 and transmitting the split force to the drum 11 and the blade component 12 respectively through different force transmission paths.

[0124] like Figure 3 As shown, in this embodiment, the first transmission member 31 is respectively linked to the input ends of the roller 11 and the blade assembly 12, and the second transmission member 32 is respectively linked to the output ends of the roller drive assembly 21 and the blade drive assembly 22. The first transmission member 31 is linked to the second transmission member 32, and the power output by the roller drive assembly 21 and the blade drive assembly 22 is transmitted to the roller 11 and the blade assembly 12 respectively through the second transmission member 32 and the first transmission member 31 in turn, so as to drive the roller 11 to rotate and drive the blade assembly 12 to reciprocate along the axial direction of the roller 11.

[0125] The first transmission member 31 includes a blade transmission mechanism 13 (refer to Figure 6) input interface and the input interface of the roller transmission mechanism; the second transmission member 32 includes a first output interface and a second output interface; the first output interface and the second output interface are respectively connected to the input interface of the blade transmission mechanism 13 and the input interface of the roller transmission mechanism from one end or both ends of the first cleaning roller 10; for example, the input interface of the blade transmission mechanism 13 and the input interface of the roller transmission mechanism are both located at the same end of the first cleaning roller 10, and the coaxially arranged first output interface and the second output interface are respectively connected to the input interface of the blade transmission mechanism 13 and the input interface of the roller transmission mechanism, or the input interface of the blade transmission mechanism 13 is located at one end of the second cleaning roller 40, and the input interface of the roller transmission mechanism is located at the other end of the first cleaning roller 10, the first output interface is connected to the input interface of the blade transmission mechanism 13, and the second output interface is connected to the input interface of the roller transmission mechanism.

[0126] The first transmission member 31 of the present application serves as an input interface for rotational power, namely, an input interface for the blade transmission mechanism 13 and an input interface for the roller transmission mechanism. The first transmission member 31 is used to receive the rotational power input by the second transmission member 32 and transmit the rotational power to the roller 11 and the blade transmission mechanism 13, respectively. The blade transmission mechanism 13 is connected to the blade assembly 12 and is a blade reciprocating drive mechanism that converts rotational power into a blade that drives the blade assembly 12 to reciprocate along the axis of the roller 11. The roller transmission mechanism is connected to the end of the roller 11 and can rotate synchronously with the roller 11. The roller transmission mechanism serves as the component that receives the rotational power for the roller 11.

[0127] The second transmission member 32 of the present application is respectively connected to the roller drive assembly 21 and the blade drive assembly 22. The second transmission member 32 outputs the rotational power transmitted by the blade drive assembly 22 to the blade transmission mechanism 13 through the first output interface, so that the blade assembly 12 moves back and forth to realize the cutting action; the second transmission member 32 outputs the rotational power transmitted by the roller drive assembly 21 to the roller 11 through the second output interface, so that the roller 11 rotates.

[0128] During the cutting process of the blade assembly 12, the speed difference between the first output interface and the second output interface is between 20r / min and 80r / min. In one embodiment, the speed difference between the first output interface and the second output interface is between 30r / min and 50r / min, so that the reciprocating speed of the blade assembly 12 is much lower than the rotation speed of the drum 11. While ensuring the cleaning efficiency of the drum 11 on the surface to be cleaned, the frequency of the reciprocating motion of the blade assembly 12 is also reduced, the heat and wear generated by the reciprocating motion of the blade assembly 12 are reduced, and the practicality is improved.

[0129] In one embodiment, Figures 6 to 8As shown, the first transmission member 31 is configured to be detachably and coaxially connected to the second transmission member 32 at one end of the first cleaning roller 10, so that the first driving force and the second driving force can be connected from one end of the first cleaning roller 10. At the same time, the first output interface and the second output interface of the second transmission member 32 are configured to be detachably and coaxially connected, which is convenient for structural layout and disassembly and maintenance. The blade transmission mechanism 13 is arranged inside the drum 11, and the input interface and the first output interface of the blade transmission mechanism 13 are configured to be detachable and transmit torque to receive the first driving force; the input interface and the second output interface of the drum transmission mechanism are configured to be detachable and transmit torque to receive the second driving force.

[0130] The first output interface includes a first connector 321. The input interface of the blade drive mechanism 13 is configured to be detachably but non-rotatably connected to the first connector 321 of the first output interface to receive a first driving force. The input interface of the blade drive mechanism 13 is provided with a first limit portion 311. The first connector 321 is plugged into the first limit portion 311 to output the first driving force. The second output interface includes a second connector 322. The input interface of the roller drive mechanism is configured to be detachably but non-rotatably connected to the second connector 322 of the second output interface to receive a second driving force. The input interface of the roller drive mechanism is provided with a second limit portion 312. The second connector 322 is plugged into the second limit portion 312 to output the second driving force. The detachable design of the input interface of the blade drive mechanism 13 and the first connector 321, as well as the detachable design of the input interface of the roller drive mechanism and the second connector 322, facilitates separation of the first cleaning roller 10 from the drive mechanism 20 and eases maintenance. In this embodiment, the first connector 321 is a drive shaft, the second connector 322 is a roller drive fork, the blade transmission mechanism 13 is a rotary reciprocating mechanism, the first limiting portion 311 is a connecting head of the blade transmission mechanism 13, and the second limiting portion 312 is a roller connecting fork, but it is not limited to this; the drive shaft and the connecting head of the rotary reciprocating mechanism are detachably connected, and the roller drive fork and the roller connecting fork are detachably connected. This design facilitates disassembly and maintenance of the equipment.

[0131] The roller drive assembly 21 includes a first gear 211, which is disposed on the second connector 322. The first gear 211 receives power input from the force flow transmission assembly 23 to drive the second connector 322 to rotate synchronously, and the second connector 322 outputs a second driving force. The first gear 211 and the second connector 322 are detachable, making it easy to replace and maintain parts, or the first gear 211 and the second connector 322 can be integrally formed, that is, made into one part, to increase the service life of both. The blade drive assembly includes a planetary reduction mechanism 221. The planetary reduction mechanism 221 receives power input from the force flow transmission assembly 23 to drive the first connector 321 to rotate synchronously, and the first connector 321 outputs a second driving force. The planetary reduction mechanism 221 realizes a speed difference between the blade transmission mechanism 13 and the roller 11, thereby reducing the reciprocating frequency of the blade assembly 12.

[0132] like Figures 10 to 12 As shown, in another embodiment, the blade drive assembly 22 includes a second gear 224, and the roller drive assembly 21 includes a third gear 212. The second gear 224 and the third gear 212 are coaxially arranged, and the second gear 224 and the third gear 212 have different rotational speeds. The speed difference between the second gear 224 and the third gear 212 is between 30 r / min and 50 r / min. The rotation of the second gear 224 is sequentially transmitted to the blade assembly 12 through the first output interface of the second transmission member 32, the input interface of the blade transmission mechanism 13 of the first transmission member 31, and the blade transmission mechanism 13. The rotation of the third gear 212 is sequentially transmitted to the roller 11 through the first output interface of the second transmission member 32, the input interface of the roller transmission mechanism of the first transmission member 31, and the roller transmission mechanism, so that the roller 11 and the blade assembly 12 use different driving forces.

[0133] like Figures 14 to 16 In another embodiment, the first and second driving forces are input from both ends of the first cleaning roller 10. The blade drive assembly 22 includes a fifth gear 225, which is disposed on the first output interface of the second transmission member 32, which includes a first connector 321. The roller drive assembly 21 includes a sixth gear 213, which is disposed on the second output interface of the second transmission member 32, which includes a second connector 322. The first connector 321 is configured to be detachable from the input interface of the blade transmission mechanism 13 and capable of transmitting torque to output the first driving force. The second connector 322 is configured to be detachable from the input interface of the roller transmission mechanism and capable of transmitting torque to output the second driving force. The fifth gear 225 and the sixth gear 213 are disposed on both sides of the roller 11. The force flow transmission assembly 23 also includes a second cleaning roller 40, which is configured to transmit the first driving force to the fifth gear 225 when rotating, thereby inputting the first driving force from the other end of the roller 11.

[0134] Please refer to the following for the specific implementation structure of the cleaning equipment of this application.

[0135] Figure 6 This is a schematic cross-sectional view of the cleaning device according to the first embodiment of the present application. Figure 7 This is a schematic diagram of a partially disassembled side view of the cleaning device according to the first embodiment of the present application. Figure 8 yes Figure 6 The schematic diagram of the partial structure of the cleaning equipment shown in the figure. Figure 2 、 Figures 6 to 8 In this embodiment, the drum 11 has a cylindrical shape and may be composed of two semicircular bodies, which may be integrally formed. One end of the cleaning member 112 is connected to the outer wall of the drum 11, and the other end of the cleaning member 112 extends away from the drum 11. The cleaning member 112 may be bristles, a rubber strip, or a combination of bristles and a rubber strip. The above is only one possible embodiment of the drum 11 and does not represent a universal structure for the drum 11.

[0136] The drum 11 is provided with a slit 111 extending along its axis. The blade assembly 12 includes at least one set of blades 121, the cutting edges of which are disposed in the slit 111. The blades 121 reciprocate in the axial direction of the drum 11 to cut the wound material on the drum 11. In this embodiment, the drum 11 is provided with two slits 111, defined as a first slit and a second slit, respectively. The first slit and the second slit are disposed opposite each other along the radial direction of the drum 11. The blade assembly 12 includes two sets of overlapping blades 121, namely a first blade and a second blade, with the cutting edges of the first blade and the second blade respectively located in the first slit and the second slit. One of the first blade and the second blade can move along the axis of the drum 11, while the other is fixedly connected to the drum 11. Under the action of a driving force, the first blade or the second blade can move to achieve a cutting action, or the first blade and the second blade can move relative to each other in opposite directions. The combined movement of the first and second blades balances operating forces, reducing vibration, and can also reduce the travel distance of the first and second blades by half, thereby reducing wear and increasing service life. In other embodiments, one group, three groups, four groups, etc. of blades may be provided according to actual needs.

[0137] The difference between the first rotation diameter D1 of the blade assembly 12 and the second rotation diameter D2 of the cleaning element 112 is greater than or equal to 7.5 mm. By reducing the diameter of the drum 11, the first rotation diameter D1 of the blade assembly 12 is reduced without increasing the size of the cavity 101 or shifting the rotation axis of the drum 11 upward. This effectively reduces the amount of carpet lost to cleaning due to the blade assembly 12 cutting without increasing the size of the main body 1. The first rotation diameter D1, the second rotation diameter D3 of the drum 11, and the installation height of the drum 11 are already discussed above and will not be further elaborated here.

[0138] When the first cleaning roller 10 is mounted on the main body 1, the distance between its axis and the surface to be cleaned remains constant. The distance between the axis and the surface to be cleaned is half of the second rotation diameter D2 of the cleaning member 112. The smaller the diameter of the drum 11, the farther the edge (top) of the blade assembly 12 is from the surface to be cleaned, thereby reducing the probability of cutting the carpet. To reduce the diameter of the drum 11, the drum drive member 21 and the blade drive assembly 22 of the drive mechanism 20 are both disposed on the outside of the drum 11.

[0139] In this embodiment, the first driving force for driving the blade assembly 12 to move back and forth and the second driving force for driving the roller 11 to rotate are connected from one end of the first cleaning roller 10, that is, the roller driving member 21, the blade driving assembly 22, the first transmission member 31 and the second transmission member 32 of the docking assembly 30 are all located on the same side of the first cleaning roller 10.

[0140] The power output of the drive mechanism 20 is a motor, whose rotational force is transmitted to the roller drive 21 and the blade drive assembly 22 via the force transmission assembly 23. The roller drive assembly 21 comprises a first gear 211, and the blade drive assembly 22 comprises a planetary reduction mechanism 221. The driving force of the first gear 211 is transmitted to the roller 11 via the second connector 322 and the second stopper 312. The driving force at the output end of the planetary reduction mechanism 221 is then transmitted to the blade assembly 12 via the first connector 321, the first stopper 311, and the blade transmission mechanism 13.

[0141] Specifically, the planetary reduction mechanism 221 includes a sun gear 2211, which is fixed relative to its location on the drive mechanism 20 to transmit torque. The torque is converted by the planetary reduction mechanism 221 into a first driving force output by the first connector 321. In this embodiment, since the planetary reduction mechanism 221 is not a wearing part and its lifespan is comparable to that of the entire machine, the planetary reduction mechanism 221 is located outside the drum 11. This eliminates the need to simultaneously replace and disassemble the planetary reduction mechanism 221 when replacing the cleaning element 112, significantly reducing maintenance costs.

[0142] like Figure 5 and Figure 7As shown, the sun gear 2211, the first gear 211 and the joint of the second connector 322, and the joint of the output end of the planetary reduction mechanism 221 and the first connector 321 are configured to transmit torque in the axial direction of the drum 11, and the sun gear 2211, the torque access part of the first output interface and the torque access part of the second output interface are configured to approach the first transmission member 31 from far to near. This arrangement can simplify the device structure and avoid the problem of space occupation due to the large volume of these parts (the sun gear 2211, the torque access part of the first output interface and the torque access part of the second output interface).

[0143] The planetary reduction mechanism 221 also includes a planetary gear set 2212 and a ring gear 2213 surrounding the sun gear 2211 and the planetary gear set 2212. The ring gear 2213 is configured to receive power input from the motor (power output unit) and transmit the power to the planetary gear set 2212. The output end of the planetary gear set 2212 is connected to the first connector 321, and the power is output as a first driving force via the planetary gear set 2212 and the first connector 321. In this embodiment, the ring gear 2213 is fixedly connected to the first gear 211, that is, the ring gear 2213 and the first gear 211 can rotate synchronously. The torque output by the motor is first transmitted to the force flow transmission assembly 23, and then transmitted to the first gear 211 through the force flow transmission assembly 23. The first gear 211 then drives the ring gear 2213 to rotate synchronously, and the ring gear 2213 drives the planetary gear set 2212 to rotate, thereby achieving speed reduction.

[0144] The planetary gear set 2212 includes a planetary carrier and at least one gear mounted on the planetary carrier. The at least one gear meshes with the sun gear 2211 to shift the output from the planetary carrier. In this embodiment, the planetary reduction mechanism 221 includes at least two planetary gear sets 2212 and at least one sun gear 2211. Each planetary gear set 2212 is mounted inside the ring gear 2213. Each planetary gear set 2212 forms a single-stage reduction gear. After at least two stages of speed reduction, the first driving force is output from the first connector 321.

[0145] The sun gear 2211 is fixed to the cleaning roller housing 102 via a sun gear shaft 2214. A first bearing 2215 is connected to the sun gear shaft 2214. The end cover 2216 of the planetary reduction mechanism 221 is connected to the first bearing 2215. This means that the end cover 2216 rotates on the sun gear shaft 2214 via the first bearing 2215. The outer edge of the end cover 2216 is connected to the ring gear 2213, allowing the end cover 2216 and the ring gear 2213 to rotate synchronously. A second bearing 323 is connected to the first connector 321. A third bearing 240 is connected to the cleaning roller housing 102. The second connector 322 is connected between the second bearing 323 and the third bearing 240.

[0146] In this embodiment, the first connector 321 serves as the output shaft of the planetary reduction mechanism 221, and the second connector 322 serves as the roller drive fork. The first gear 211 and the second connector 322 are integrally formed, i.e., formed as a single component, thereby increasing the service life of both. The first stopper 311 serves as the coupling head of the blade transmission mechanism 13, and the second stopper 312 serves as the roller coupling fork. The output shaft of the planetary reduction mechanism 221 is detachably connected to the coupling head of the blade transmission mechanism 13, and the roller drive fork is detachably connected to the roller coupling fork, thereby achieving a removable connection between the roller 11 and the roller.

[0147] For ease of analysis, assuming that the sun gear 2211 rotates while the first gear 211 is stationary, it can be clearly seen that the first connector 321 at the output end of the planetary reduction mechanism 221 achieves a reduction in speed with each stage of the planetary gear set 2212. For example, the present application employs a two-stage planetary gear set 2212 reduction, with a total reduction ratio between 1:20 and 1:50. This means that for every 20 to 50 rotations of the sun gear 2211, the first connector 321 rotates once, and the blade assembly 12 performs one hair cutting operation. Similarly, for every 20 to 50 rotations of the drum 11, the blade transmission mechanism 13 rotates once relative to the drum 11, thereby driving the blade assembly 12 to perform one hair cutting operation. This reduces the reciprocating speed of the blade assembly 12, reduces heat generation, and increases its service life.

[0148] In this embodiment, the force is distributed through the first gear 211 and the planetary reduction mechanism 221 . Figure 9 This is a schematic diagram of the power flow of the cleaning device of Example 1 of the present application. Figure 9 As shown, the force diversion of this embodiment is divided into two coaxially transmitted force flows along the same axis and transmitted to the blade assembly 12 and the roller 11 respectively using two coaxially arranged first connectors 321 and second connectors 322. This diversion method is called coaxial diversion.

[0149] like Figure 6 As shown, the blade transmission mechanism 13 includes a rotating shaft 132, a first cam block 133, a second cam block 134, a first linkage block 135 and a second linkage block 136. The rotating shaft 132 is detachably connected to the first connector 321 and can transmit torque. The first cam block 133 and the second cam block 134 are relatively fixedly connected to the rotating shaft 132 along the axial direction. The two ends of the first linkage block 135 and the second linkage block 136 respectively abut against the cam surfaces of the first cam block 133 and the second cam block 134. The first blade is connected to the first cam block 133, and the second blade is connected to the second cam block 134. When the rotating shaft 132 rotates, the first cam block 133 and the second cam block 134 reciprocate in opposite directions under the action of the cam surfaces.

[0150] like Figure 7 and Figure 8As shown, the force flow transmission assembly 23 of this embodiment includes a first transmission gear 237, a second transmission gear 238 and a third transmission gear 239. The first transmission gear 237 is engaged with the first gear 211, and the second transmission gear 238 is engaged with the first transmission gear 237 and the third transmission gear 239 respectively. The third transmission gear 239 is engaged with the output gear 25 of the motor. The motor outputs rotational power through the output gear 25 and passes through the third transmission gear 239, the second transmission gear 238 and the first transmission gear 237 of the force flow transmission assembly 23 in sequence, and then is transmitted to the first gear 211 and the planetary gear mechanism 221.

[0151] like Figure 6 and Figure 7 As shown, the cleaning device of the present application also includes a second cleaning roller 40, the end of which is connected to a first docking gear 41, which is engaged with a second transmission gear 238; the power output by the motor is diverted from the second transmission gear 238, with a portion of the rotational power being transmitted to the first transmission gear 237 and the other portion of the rotational power being transmitted to the first docking gear 41, thereby driving the first cleaning roller 10 and the second cleaning roller 40 to rotate synchronously. In this embodiment, the second cleaning roller 40 is provided with a cleaning member and / or a cutting member, and the cutting member moves on the second cleaning roller 40 to cut hair.

[0152] Figure 10 This is a schematic cross-sectional view of the cleaning device according to the second embodiment of the present application. Figure 11 This is a schematic diagram of a partially disassembled side view of the cleaning device of Example 2 of the present application. Figure 12 yes Figure 10 The schematic diagram of the partial structure of the cleaning equipment shown in FIG. Figures 10 to 12 As shown, the cleaning device of this embodiment is substantially similar to the cleaning device of the above embodiment, differing in the structure of the drive mechanism 20. In this embodiment, the blade drive assembly 22 includes a second gear 224, and the roller drive assembly 21 includes a third gear 212. The second gear 224 and the third gear 212 are coaxially arranged, and the second gear 224 and the third gear 212 have different rotational speeds. In this embodiment, the power output by the second gear 224 is used to drive the blade assembly 12 to cut hair, while the power output by the third gear 212 is used to drive the roller 11 to rotate to clean the surface to be cleaned.

[0153] The force flow transmission assembly 23 includes a second transmission gear 238, a third transmission gear 239, and two coaxially arranged fourth gears 231. The two fourth gears 231 can rotate synchronously, and the two fourth gears 231 can be configured as a double gear. One of the fourth gears 231 is meshed with the second gear 224, and the other fourth gear 231 is meshed with the third gear 212. The first transmission gear 237 is meshed with one of the fourth gears 231. The second transmission gear 238 is meshed with the first transmission gear 237 and the third transmission gear 239 respectively. The third transmission gear 239 is meshed with the output gear 25 of the motor. The motor outputs rotational power through the output gear 25 and sequentially passes through the third transmission gear 239, the second transmission gear 238, and the two fourth gears 231 of the force flow transmission assembly 23. The two fourth gears 231 are then transmitted to the second gear 224 and the third gear 212 respectively, thereby driving the roller 11 and the blade transmission mechanism 13 to rotate at different speeds.

[0154] The transmission ratio between the second gear 224 and one fourth gear 231 is different from the transmission ratio between the third gear 212 and the other fourth gear 231. The speed difference between the second gear 224 and the third gear 212 is between 30 rpm and 50 rpm. In this embodiment, the two fourth gears 231 have different outer diameters or different numbers of teeth to achieve different transmission ratios.

[0155] Assume that the transmission ratio between the third gear 212 and the fourth gear 231 is X, and the transmission ratio between the second gear 224 and the fourth gear 231 is X + / - (2% to 5%) X. When the rotational speed of the two fourth gears 231 is Y, the rotational speed of the third gear 212 is Y / X, and the rotational speed of the second gear 224 is Y / X + / - (2% to 5%) X. The speed difference between the second gear 224 and the third gear 212 is (2% to 5%) Y / 1 + / - (2% to 5%) X. The ratio of the rotational speed of the second gear 224 to the third gear 212 is (1% to 5%), or 20 to 50 times. In the present application, for every 20 to 50 rotations of the drum 11, the first connector 321 and the blade transmission mechanism 13 rotate one rotation relative to the drum 11, thereby driving the blade assembly 12 to perform one hair cutting operation.

[0156] Figure 12 This is a schematic diagram of the power flow of the cleaning device of Example 2 of the present application. Figure 12 As shown, the force diversion of this embodiment is at the junction of the two fourth gears 231 and the second gear 224 and the third gear 212, which is located outside the axis of the drum 11, but all are input from the same end of the drum 11, so it is called Y-type diversion same-side input type.

[0157] In this embodiment, the first transmission member 31 is disposed at the input end of the first cleaning roller 10, and the second transmission member 32 is disposed at the output end of the drive mechanism 20. The first transmission member 31 is configured to be detachably and coaxially connected to the second transmission member 32 at one end of the first cleaning roller 10, so that the first driving force and the second driving force can be input from one end of the first cleaning roller 10. The blade transmission mechanism 13 is disposed inside the drum 11; the first output interface and the second output interface are configured to be detachably and coaxially connected. Please refer to the above for the connection relationship between the first transmission member 31 and the drum 11 and the blade transmission mechanism 13, as well as the connection relationship between the second transmission member 32 and the drum drive assembly 21 and the blade drive assembly 22, which will not be repeated here.

[0158] The input interface and the first output interface of the blade transmission mechanism 13 are configured to be detachable and transmit torque to receive the first driving force; the input interface and the second output interface of the roller transmission mechanism are configured to be detachable and transmit torque to receive the second driving force.

[0159] The first output interface includes a first connector 321, and the second output interface includes a second connector 322. The junction between the second gear 224 and the first connector 321, the third gear 212, and the second connector 322 are positioned axially of the drum 11 from farthest to closest to the first transmission member 31. This arrangement simplifies the structural design of the third gear 212 and reduces manufacturing costs. If the second gear 224 were positioned closer to the first transmission member 31, the third gear 212 would need to bypass the second gear 224 to connect with the second connector 322, thereby increasing the size of the third gear 212. In this embodiment, the second gear 224 is rigidly connected to the first connector 321, meaning that the second gear 224 rotates synchronously with the first connector 321 to output the first driving force. The second gear 224 and the first connector 321 may also be integrally formed, which is not specifically limited here. The third gear 212 is rotatably sleeved on the first connector 321, meaning that the third gear 212 and the first connector 321 rotate asynchronously to output the second driving force. The third gear 212 and the second connector 322 can be integrally formed or fixedly connected to achieve synchronous rotation.

[0160] The first connector 321 is an output shaft. One end of the first connector 321, away from the first transmission member 31, is connected to the cleaning roller housing 102 via a fourth bearing 3211. The other end is also connected to the cleaning roller housing 102 via a second connector 322 and a fifth bearing 3212. Specifically, the second connector 322, like the third gear 212, is rotatably mounted on the first connector 321. The second connector 322 is connected to the cleaning roller housing 102 via a fifth bearing 3212. The provision of the fourth bearing 3211 and the fifth bearing 3212 ensures the rotational stability of the second gear 224 and the like.

[0161] Regarding other structures of the cleaning device, please refer to the above description, which will not be repeated in this embodiment.

[0162] Figure 14 This is a schematic cross-sectional view of the cleaning device according to the third embodiment of the present application. Figure 15 This is a schematic diagram of a partially disassembled side view of the cleaning device of Example 3 of the present application. Figure 16 This is a schematic diagram of the cooperation between the intermediate reversing gear and the first cleaning roller and the second cleaning roller of the present application, as shown in FIG. Figures 14 to 16 As shown, the cleaning device of this embodiment is substantially the same as the cleaning device of the above embodiment, except that the first driving force and the second driving force output by the force flow transmission assembly 23 of this embodiment are input from both ends of the first cleaning roller 10 .

[0163] The docking assembly 30 includes a first transmission member 31 and a second transmission member 32. The first transmission member 31 includes an input interface for the blade transmission mechanism 13, located at the first end of the first cleaning roller 10, and an input interface for the roller transmission mechanism, located at the second end of the first cleaning roller 10. The second transmission member 32 includes a first output interface and a second output interface; the first output interface and the second output interface are connected to the input interface of the blade transmission mechanism 13 and the input interface of the roller transmission mechanism, respectively, from the ends of the first cleaning roller 10. The structure and function of the docking assembly 30 are described in detail in the above embodiment and will not be repeated in this embodiment.

[0164] The blade drive assembly 22 includes a fifth gear 225, which is mounted on a first output interface including a first connector 321. The roller drive assembly 21 includes a sixth gear 213, which is mounted on a second output interface including a second connector 322. The first connector 321 is configured to be detachable from the input interface of the blade transmission mechanism 13 and capable of transmitting torque to output a first driving force. The second connector 322 is configured to be detachable from the input interface of the roller transmission mechanism and capable of transmitting torque to output a second driving force. The fifth gear 225 is rigidly connected to the first connector 321, that is, the fifth gear 225 and the first connector 321 can rotate synchronously. The power of the motor is transmitted to the first connector 321 via the fifth gear 225, thereby driving the blade transmission mechanism 13 to rotate, so that the blade assembly 12 moves back and forth to cut hair; the sixth gear 213 is connected to the second connector 322, that is, the sixth gear 213 and the second connector 322 can rotate synchronously. The power provided by the motor is transmitted to the second connector 322 via the sixth gear 213 and the fifth gear 225, thereby driving the drum 11 to rotate and clean the surface to be cleaned.

[0165] The force flow transmission assembly 23 of this embodiment also includes the above-mentioned second cleaning roller 40. The second cleaning roller 40 is configured to transmit the first driving force to the fifth gear 225 when rotating, that is, the power provided by the motor drives the second cleaning roller 40 to rotate, and the second cleaning roller 40 transmits the driving force to the fifth gear 225.

[0166] The force flow transmission assembly 23 also includes two intermeshing intermediate gears 234, which are configured to transmit torque between the second cleaning roller 40 and the first cleaning roller 10. A second docking gear 42 is provided at the end of the second cleaning roller 40 away from the first docking gear 41. One intermediate gear 234 meshes with the second docking gear 42, and the other intermediate gear 234 meshes with the fifth gear 225. The first cleaning roller 10 and the second cleaning roller 40 rotate in opposite directions, and the two intermediate gears 234 are used to reverse the direction so that the blade drive mechanism 13 rotates in the same direction as the first cleaning roller 10.

[0167] The first transmission gear 237 meshes with the sixth gear 213, and the second transmission gear 238 meshes with the first transmission gear 237, the third transmission gear 239, and the first docking gear 41, respectively. The third transmission gear 239 meshes with the output gear 25 of the motor. The rotational power output by the motor is transmitted to the second transmission gear 238 via the third transmission gear 239. The rotational power is then split at the second transmission gear 238, with a portion of the rotational power being transmitted to the first transmission gear 237 and the sixth gear 213. The remaining portion of the rotational power is transmitted sequentially through the first docking gear 41, the second cleaning roller 40, the second docking gear 42, the two intermediate gears 234, the fifth gear 225, and finally through the first connector 321 to drive the blade transmission mechanism 13 to rotate.

[0168] In this embodiment, the first cleaning roller 10 and the second cleaning roller 40 have the same rotational speed, but the transmission ratio between the sixth gear 213 and the first transmission gear 237 is different from the transmission ratio between the fifth gear 225 and the second docking gear 42. Assuming that the transmission ratio between the sixth gear 213 and the first transmission gear 237 is U, the transmission ratio between the fifth gear 225 and the second docking gear 42 is (1+ / -(2% to 5%))U. That is, when the rotational speed of the sixth gear 213 and the first docking gear 41 is V, the rotational speed of the fifth gear 225 is 1+ / -(2% to 5%)V / U; the rotational speed difference between the fifth gear 225 and the sixth gear 213 is (2% to 5%)V / 1+ / -(2% to 5%)U; the ratio of the rotational speed of the fifth gear 225 to the rotational speed of the sixth gear 213 is (1% to 5%), or 20 to 50 times. In this embodiment, every time the drum 11 rotates 20 to 50 times, the first connector 321 and the blade transmission mechanism 13 rotate one circle relative to the drum 11, thereby driving the blade assembly 12 to perform one hair cutting operation.

[0169] Figure 17 This is a schematic diagram of the power flow of the cleaning device of Example 3 of the present application. Figure 17 As shown, in this embodiment, the force is split into two streams at the second transmission gear 238, located outside the axis of the second cleaning roller 40. One stream of force flows from one end of the first cleaning roller 10 to the drum 11 through the sixth gear 213; the other stream of force flows from the other end of the first cleaning roller 10 through the first docking gear 41, the second cleaning roller 40, the second docking gear 42, and the two intermediate gears 234. This is called a Y-type split with opposite-side input. The blade assembly 12 of this embodiment achieves a lower cutting frequency than the drum 11 speed by having the sixth gear 213 and the fifth gear 225 rotate at different speeds, a process known as a differential type.

[0170] In this embodiment, a clutch structure is formed by the meshing of gears. When the first cleaning roller 10 is picked up, the fifth gear 225 and the intermediate gear 234 rotate, the connection is disengaged, and the first cleaning roller 10 is taken out; when the first cleaning roller 10 is installed, under the action of hand pressure, the fifth gear 225 and the intermediate gear 234 rotate, the gears mesh together, and the first cleaning roller 10 is installed in place, thereby realizing the function of convenient user disassembly and assembly of the cleaning part 112.

[0171] Regarding other structures of the cleaning device, please refer to the above description, which will not be repeated in this embodiment.

[0172] In summary, the cleaning device of the present application has a large difference between the maximum rotation diameters of the blade assembly and the cleaning element because the difference between the second rotation diameter D2 of the free end of the cleaning element and the first rotation diameter D1 of the top end of the blade assembly is greater than or equal to 7.5 mm. That is, the distance between the blade assembly and the surface to be cleaned is increased, which can effectively reduce the probability of the blade assembly cutting and damaging the carpet.

[0173] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. The structures or structural features involved may be arbitrarily combined and superimposed. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concepts disclosed in the present application shall be encompassed by the claims of the present application.

Claims

1. A cleaning device, characterized in that: The cleaning equipment comprises: a main body having a cavity; The moving component is arranged on the main body, supports and drives the main body to move on the surface to be cleaned, a cleaning roller disposed in the cavity, comprising a drum, a cleaning member disposed in the circumferential direction of the drum and rotating synchronously with the drum, and a blade assembly disposed on the drum and extending along the axial direction of the drum; During the rotation of the drum, the maximum value of the rotation diameter formed by the blade assembly is the first rotation diameter D1, the free end of the cleaning member has a second rotation diameter D2, and the difference between the second rotation diameter D2 and the first rotation diameter D1 is greater than or equal to 7.5 mm.

2. The cleaning device according to claim 1, characterized in that The first rotation diameter D1 is less than or equal to 25 mm.

3. The cleaning device according to claim 1, characterized in that The maximum value of the rotation diameter formed by the drum during the rotation process is the third rotation diameter D3, and the difference between the third rotation diameter D3 and the first rotation diameter D1 is less than or equal to 3 mm.

4. The cleaning device according to claim 3, characterized in that The drum is provided with a slit extending in the axial direction, and the blade assembly is arranged in the drum and at least partially located in the slit.

5. The cleaning device according to claim 1, characterized in that The height of the main body is H1, the height of the rotation axis of the drum is H2, and the ratio of H2 to H1 is in the range of 0.1-0.

4.

6. The cleaning device according to claim 1, characterized in that The cleaning device also includes a driving mechanism, which includes a roller driving assembly and a blade driving assembly; the roller driving assembly is configured to drive the roller to rotate, and the blade driving assembly is configured to drive the blade assembly to reciprocate in the axial direction of the roller; the blade driving assembly is located outside the roller.

7. The cleaning device according to claim 6, characterized in that The driving mechanism includes a force flow transmission component, which is configured to provide a first driving force and a second driving force to the cleaning roller. The first driving force is transmitted to the blade assembly at a first rotational speed via the blade drive component, and the second driving force is transmitted to the roller at a second rotational speed via the roller drive component. The first rotational speed and the second rotational speed are different, and the first driving force and the second driving force are configured to be connected from one end or both ends of the cleaning roller.

8. The cleaning device according to claim 7, characterized in that The first speed is lower than the second speed, and a speed difference between the first speed and the second speed is between 30 r / min and 50 r / min.

9. The cleaning device according to claim 7, characterized in that A docking assembly is provided between the roller and the driving mechanism, and the docking assembly is configured to detachably connect the first cleaning roller to the driving mechanism.

10. The cleaning device according to claim 9, characterized in that The docking assembly includes a first transmission member and a second transmission member detachably connected to the first transmission member, the first transmission member is arranged at the input end of the cleaning roller, and the second transmission member is arranged at the output end of the driving mechanism; The first transmission member includes an input interface of a blade transmission mechanism and an input interface of a roller transmission mechanism; The second transmission member includes a first output interface and a second output interface; the input interface of the blade transmission mechanism and the first output interface are configured to be detachable and capable of transmitting torque to receive the first driving force; the input interface of the roller transmission mechanism and the second output interface are configured to be detachable and capable of transmitting torque to receive the second driving force; During the cutting process of the blade assembly, the speed difference between the first output interface and the second output interface is between 30 r / min and 50 r / min.

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