CN219629536U - Cleaning assembly mounted on surface cleaning device - Google Patents

Cleaning assembly mounted on surface cleaning device Download PDF

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Publication number
CN219629536U
CN219629536U CN202320213843.4U CN202320213843U CN219629536U CN 219629536 U CN219629536 U CN 219629536U CN 202320213843 U CN202320213843 U CN 202320213843U CN 219629536 U CN219629536 U CN 219629536U
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China
Prior art keywords
cleaning
driving
roller
cleaning cloth
section
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CN202320213843.4U
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Chinese (zh)
Inventor
朱泽春
邢靖宣
李玉涛
胡籍丹
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Joyoung Co Ltd
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Joyoung Co Ltd
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Abstract

The application discloses a cleaning component arranged on a surface cleaning device, which is detachably arranged on a floor brush and used for wiping a surface to be cleaned, wherein the cleaning component comprises a driving roller, a driven roller, a support frame and cleaning cloth sleeved outside the driving roller and the driven roller, the driving roller and the driven roller are arranged in parallel, the support frame comprises a first mounting frame and a second mounting frame, the first mounting frame comprises a first supporting part and a second supporting part which are oppositely arranged along the axial direction of the driving roller, the second mounting frame comprises a third supporting part and a fourth supporting part which are oppositely arranged along the axial direction of the driven roller, the rotation length of the driving roller is longer than that of the driven roller, and the projection of the driving roller on the axis of the cleaning component covers the projection of the driven roller on the axis of the cleaning component. By adopting the technical scheme, the corresponding positions of the driven rollers are all subjected to the tensile force provided by the driving roller, so that the driving roller is ensured to provide enough tensile force for the cleaning cloth to drive the driven rollers to rotate, synchronous rotation of the driving roller, the cleaning cloth and the driven rollers is realized, and stable operation of the cleaning assembly is ensured.

Description

Cleaning assembly mounted on surface cleaning device
Technical Field
The utility model relates to the technical field of cleaning equipment, in particular to a cleaning assembly.
Background
The existing cleaning assembly is usually detachably arranged on a floor brush of the surface cleaning device, and the cleaning assembly is utilized to wipe the surface to be cleaned so as to achieve the cleaning purpose. Consists of a driving roller, a driven roller, a supporting frame and cleaning cloth sleeved on the supporting frame, wherein the driving roller and the driven roller are parallel to each other. The cleaning cloth covers the driving roller and the driven roller, and has the characteristics of large cleaning area and high cleaning efficiency. The driving roller is connected with the driving component, and is driven by the driving component to rotate and drive the cleaning cloth to rotate, and the rotating cleaning cloth drives the driven roller to rotate, so that the cleaning component moves on the surface to be cleaned and adsorbs dirt on the surface to be cleaned, thereby achieving the cleaning purpose. The support frame includes first supporting part and the second supporting part that set up relatively along the drive roll axial to and along driven voller axial relative setting's third supporting part and fourth supporting part, for promoting the clean area of cleaning cloth, make cleaning cloth cover support frame. The supporting part arranged on the supporting frame is a fixed support which can not rotate under the drive of the driving component to provide power for the rotation of the cleaning cloth, the cleaning cloth is not only required to rotate under the drive of the driving roller, but also required to rotate the driven roller by overcoming the friction force between the cleaning cloth and the driven roller, so that the driven roller and the driving roller synchronously rotate, the cleaning component moves on the surface to be cleaned, and therefore, the driving roller is required to provide enough power to enable the driven roller to stably operate.
Disclosure of Invention
In order to solve the defects and shortcomings in the prior art, the utility model provides a cleaning assembly, which is detachably arranged on a floor brush of a surface cleaning device and used for wiping a surface to be cleaned, the cleaning assembly comprises a driving roller, a driven roller, a support frame and cleaning cloth sleeved outside the driving roller and the driven roller, the driving roller and the driven roller are arranged in parallel, the support frame comprises a first mounting frame and a second mounting frame, the first mounting frame comprises a first supporting part and a second supporting part which are oppositely arranged along the axial direction of the driving roller, the second mounting frame comprises a third supporting part and a fourth supporting part which are oppositely arranged along the axial direction of the driven roller, the projection of the driving roller on the axis of the cleaning assembly covers the projection of the driven roller on the axis of the cleaning assembly, and the rotation length of the driving roller is larger than that of the driven roller.
Preferably, the driving roller comprises a driving section and a transmission section which are coaxially arranged, the first supporting part is arranged between the driving section and the transmission section, and the driven roller is at least partially arranged at the corresponding position of the first supporting part along the rotation direction of the cleaning cloth.
Preferably, the first support portion and the second support portion form a first mounting frame, the third support portion and the fourth support portion form a second mounting frame, and the first mounting frame and the second mounting frame are at least partially arranged in a staggered manner in the axial direction of the cleaning assembly.
Preferably, the first supporting part is arranged at the end part of the driving roller, the fourth supporting part is arranged at the end part of the driven roller corresponding to the first supporting part, and the first supporting part and the fourth supporting part are at least partially arranged in a dislocation manner in the axial direction of the cleaning assembly.
Preferably, the side plate is provided with a third supporting part rotationally connected with the driven roller and a second supporting part rotationally connected with the driving roller, and the width L2 of the second supporting part along the direction of the cleaning assembly is smaller than or equal to the width L3 of the third supporting part along the direction of the cleaning assembly.
Preferably, the first support portion has a diameter equal to or smaller than the diameter of the drive roller.
Preferably, the drive section length is less than the drive section length.
Preferably, a connecting part is arranged in the first supporting part, one end of the connecting part is connected with the driving section, and the other end of the connecting part is connected with the transmission section. At least one of the second support portion and the third support portion has a diameter smaller than that of a drive roller or a driven roller coaxially disposed therewith.
Preferably, the support frame is provided with second ribs along the rotation direction of the cleaning cloth, and the second ribs are abutted with the cleaning cloth.
After the technical scheme is adopted, the utility model has the following advantages:
1. the surface cleaning device for cleaning the surface to be cleaned comprises the ground brush provided with the cleaning component, and the cleaning component and the ground brush can be detachably mounted, so that the cleaning component can be cleaned and replaced conveniently. The cleaning assembly rotates to wipe the surface to be cleaned through the cleaning cloth sleeved outside the driving roller and the driven roller, the greater the axial width of the cleaning cloth is, the better the fitting degree of the cleaning cloth and the surface to be cleaned is, the greater the ground pressure is, the stronger the cleaning capacity of the surface to be cleaned is, and the cleaning area is larger. The drive roll is installed on the support frame through a first mounting frame, and the first mounting frame comprises a first supporting part and a second supporting part which are oppositely arranged along the axial direction of the drive roll. The driven roller passes through the second mounting bracket and installs on the support frame, and the second mounting bracket includes third supporting part and the fourth supporting part that sets up relatively along driven roller axial. The cleaning cloth at least partially includes a first mounting frame and a second mounting frame to enlarge a cleaning area of the cleaning assembly. The driving roller is connected with the driving assembly and is driven by the driving assembly to rotate, the rotating driving roller drives the cleaning cloth to rotate, and the driven roller is driven by the cleaning cloth to rotate. The projection of the driving roller on the axis of the cleaning assembly covers the projection of the driven roller on the axis of the cleaning assembly, so that the driving roller is guaranteed to provide enough pulling force for the cleaning cloth to drive the driven roller to rotate, the corresponding positions of the driven roller are all pulled by the driving roller, and stable operation of the cleaning assembly is guaranteed. The rotation length of the driving roller is longer than that of the driven roller, and the rotating driving roller provides enough pulling force for the cleaning cloth so that the rotating cleaning cloth drives the driven roller to rotate along with the driving roller.
Drawings
FIG. 1 is an overall view of a surface cleaning apparatus according to an embodiment;
FIG. 2 is a view showing a structure of a floor brush according to an embodiment;
FIG. 3 is a schematic view of a portion of a cleaning assembly according to an embodiment;
FIG. 4 is a partially disassembled view of a floor brush according to an embodiment;
FIG. 5 is a schematic view of a cleaning assembly according to an embodiment;
FIG. 6 is an exploded view of a portion of a component of a cleaning assembly according to an embodiment;
FIG. 7 is a schematic view of a portion of a cleaning assembly according to an embodiment;
FIG. 8 is a schematic view of a main support portion of a cleaning assembly according to an embodiment;
FIG. 9 is a block diagram of the open end of the first support portion of the cleaning assembly according to the first embodiment;
FIG. 10 is a block diagram of a semi-closed end of a first support portion of a cleaning assembly according to an embodiment;
FIG. 11 is a schematic illustration of the cooperation of the drive section and the transmission section of a cleaning assembly according to an embodiment;
FIG. 12 is a schematic view of a portion of a cleaning assembly according to a second embodiment;
FIG. 13 is a schematic view showing a part of the structure of a cleaning assembly according to a third embodiment;
fig. 14 is a schematic view of a portion of a cleaning assembly according to three alternative embodiments.
In the figure, 100-floor brushes, 200-cleaning components, 300-liquid supply tanks, 400-sewage tanks, 410-dirt suction channels, 210-driving rollers, 211-accommodating chambers, 212-side plates, 2121-abutting parts, 2122-limiting parts, 2123-positioning parts, 2131-driving heads, 214-driving sections, 215-driving sections, 216-connecting parts, 217-concave cavities, 220-driven rollers, 230-supporting frames, 231-main frames, 232-auxiliary frames, 233-first supporting parts, 234-second supporting parts, 235-third supporting parts, 236-fourth supporting parts, 240-cleaning cloths, 2331-ribs, 2332-bearings, 2162-hexagonal inclined surfaces, 2336-semi-closed ends, 2337-open ends, 237-second ribs and 260-scraping bars.
Detailed Description
The utility model will be further described with reference to the drawings and the specific examples. It is to be understood that the terms "upper," "lower," "left," "right," "longitudinal," "transverse," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like, as used herein, are merely based on the orientation or positional relationship shown in the drawings and are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the devices/elements referred to must have or be configured and operated in a particular orientation and therefore should not be construed as limiting the utility model.
The utility model provides a surface cleaning device which can be a handheld surface cleaning device with a crawler-type cleaning assembly or a self-moving surface cleaning device with a crawler-type cleaning assembly. Hand-held surface cleaning devices, which may be exemplified by floor washers, cleaning mops, and the like. The self-moving surface cleaning apparatus may be, for example, a cleaning robot.
The surface cleaning device comprises a cleaning assembly, wherein the cleaning assembly 200 comprises a supporting frame 230, and a driving roller 210 and a driven roller 220 which are erected on the supporting frame 230 and are rotatably connected with the supporting frame 230, and cleaning cloth 240 is sleeved on the driving roller 210 and the driven roller 220, and specifically, the cleaning cloth 240 is crawler-type cleaning cloth. When the crawler-type surface cleaning device performs a cleaning operation, the cleaning cloth 240 is at least partially abutted against the driving roller 210 and the driven roller 220, and in a tensioned state, the driving roller 210 and/or the driven roller 220 are rotated to drive the cleaning cloth 240 to rotationally wipe the surface to be cleaned. The cleaning cloth 240 completely covers the driving roller 210 and the driven roller 220, and covers at least a portion of the supporting frame 230 to expand the lateral width of the cleaning cloth 240, thereby lifting the cleaning area of the cleaning assembly 200.
Example 1
As shown in fig. 1 to 11, the surface cleaning apparatus further includes a liquid supply assembly including a liquid supply tank 300 for storing the cleaning liquid, and a liquid supply flow passage having one end communicating with the liquid supply tank 300 and the other end communicating with the cleaning assembly 200. In performing the cleaning operation, the liquid supply tank 300 supplies the cleaning liquid to the cleaning assembly 200 through the liquid supply passage, wets the cleaning assembly 200, and rotates the cleaning assembly 200 to wipe the surface to be cleaned.
Further, the cleaning device may further include a soil pick-up assembly, which further includes a soil pick-up fan, a soil pick-up channel 410 and a soil box 400. The soil sucking passage 410 has one end communicated with the cleaning assembly 200 and the other end communicated with the soil sucking fan through the soil tank, and when the surface cleaning apparatus is operated, the soil sucking fan is operated to generate suction force to suck the soil on the surface to be cleaned and/or the cleaning assembly 200, and the soil enters the surface cleaning apparatus through the soil sucking passage 410410 and is finally stored in the soil tank 400.
The support frame 230 includes a main frame 231 and a sub frame 232, the main frame 231 includes a first mounting frame disposed along an axial direction of the driving roller 210, the first mounting frame including a first supporting portion 233 and a second supporting portion 234 disposed opposite each other, and a second mounting frame disposed along an axial direction of the driven roller 220, the second mounting frame including a third supporting portion 235 and a fourth supporting portion 236 disposed opposite each other. The support frame 230 further includes a side plate 212, and the side plate 212 is fixedly connected or integrally formed with the main support 231 and/or the sub-support 232. The cleaning cloth 240 is sleeved on the supporting frame 230 and at least partially covers the first and second mounting frames to expand the lateral width of the cleaning cloth 240 to lift the cleaning area of the cleaning assembly 200.
Further, the support 230 is further provided with a folding structure. The folding structure is contracted, and the main support 231 and the sub support 232 are moved closer to each other or the sub support 232 is moved in a direction approaching the main support 231 or the main support 231 is moved in a direction approaching the sub support 232. Gaps are formed among the driving roller 210, the driven roller 220 and the cleaning cloth 240, the cleaning cloth 240 is in a loose state, and a user can take the cleaning cloth 240 off the supporting frame 230 for replacement or cleaning. The receiving structure is in a tensioned state, a fixed distance is maintained between the main support 231 and the sub support 232 and is fixed at a corresponding position, and the cleaning cloth 240 is sleeved on the driving roller 210 and the driven roller 220, at least partially abuts against the driving roller 210 and the driven roller 220, and the tensioned state is maintained. The cleaning cloth 240 is rotated by the driving roller 210 and/or the driven roller 220 to clean the surface to be cleaned.
The floor brush 100 is also provided with a drive assembly which further comprises a transmission head 2131 arranged on the floor brush 100, and the drive roller 210 is communicated with the transmission head 2131 when the cleaning assembly 200 is arranged on the floor brush 100. The driving head 2131 drives the driving roller 210 to rotate when the cleaning assembly 200 performs a cleaning operation. The driving roller 210 rotates and drives the cleaning cloth 240 to rotate, and the rotating cleaning cloth 240 drives the driven roller 220 to rotate.
As an implementation manner of this embodiment, optionally, the driving assembly is connected to the driving roller 210 in this embodiment, and the driving roller 210 rotates and drives the cleaning cloth 240 to rotate, and the rotating cleaning cloth 240 drives the driven roller 220 to rotate. Further, one end of the driving section 214 is provided with an inwardly recessed cavity 217, the driving assembly comprises a driving head 2131 arranged in the cavity 217 of the driving section 214 in the accommodating cavity 211, and the driving section 214 is in driving fit with the driving head 2131 so as to enable the driving section 214 to rotate, so that the driving section 214 is driven by the driving assembly to rotate. On the one hand, the stability of transmission is improved, and on the other hand, the phenomenon that dirt adheres to the transmission head 2131 to cause the transmission head 2131 to be blocked and the driving assembly to be scrapped is avoided.
As another implementation manner in this embodiment, optionally, one end of the driving section 214 is provided with a protruding portion matched with the driving assembly, the driving assembly is provided with a concave cavity matched with the driving section 214, and the protruding portion on the driving section 214 extends into the concave cavity of the driving assembly and is wrapped by the concave cavity. The driving section 214 can rotate along with the driving assembly, and meanwhile, dirt is prevented from entering a gap between the driving section 214 and the driving assembly, so that stable transmission is ensured.
Further, the cleaning cloth 240 at least partially covers the first and second mounting frames to enlarge the cleaning area of the cleaning cloth 240. The first and second mounting frames generate frictional resistance to the rotation of the cleaning cloth when contacting the cleaning cloth 240 while the cleaning cloth 240 rotates. The projection of the drive roller 210 on the cleaning assembly 200 axis l covers the projection of the driven roller 220 on the cleaning assembly axis l, and the rotational length of the drive roller 210 is greater than the rotational length of the driven roller 220. The length of rotation herein refers to the length of the brush roll that can be rotated by the drive assembly or cleaning cloth or other drive source. The axis l of the cleaning assembly 200 is a straight line along which the rotation axis of the cleaning cloth 240 is located when the cleaning cloth 240 is sleeved on the supporting frame 230 and is kept in a tensioned state. Alternatively, the cleaning assembly axis l may also be expressed as a line parallel to the drive roller 210 and driven roller and between the drive roller 210 and driven roller 220 that is a line of symmetry that makes the drive roller 210 and driven roller 220 symmetrical. The driven roller 220 is provided with a driving roller 210 rotating at a corresponding position in the rotation direction of the cleaning cloth 240. The driving roller 210 provides sufficient driving force for the rotation of the cleaning cloth 240, ensures that the cleaning cloth 240 and the driven roller 220 stably rotate under the driving of the driving roller 210, and avoids unstable operation caused by the fact that the driven roller 220 cannot synchronously rotate along with the driving roller 210.
Further, the first mounting frame and the second mounting frame are at least partially offset in the axial direction of the cleaning assembly 200. The axial direction of the cleaning assembly 200 refers to a direction parallel to the drive roller and/or driven roller. The first and second mounting brackets being at least partially offset in the axial direction of the cleaning assembly 200 means that the projections of the first and second mounting brackets on a plane parallel to the drive and/or driven rollers do not completely coincide. When a cleaning operation is performed, the driving roller 210, the driven roller 220, and the supporting frame 230 collectively support the cleaning cloth 240, putting the cleaning cloth 240 in tension and rotating to wipe the surface to be cleaned as the driving roller 210 rotates. Rolling friction is generated between the driving roller 210 and the driven roller 220 and the cleaning cloth 240, and the cleaning cloth 240 in a tensioned state is rubbed against at least part of the first and second mounting frames during rotation. As an implementation manner of this embodiment, alternatively, a transmission manner in which the driving roller 210 rotates to drive the cleaning cloth 240 to rotate and the driven roller 220 is driven to rotate by the cleaning cloth 240 to rotate is described as an example.
The driving roller 210 abuts against the cleaning cloth 240 and drives the cleaning cloth 240 to rotate, and the first supporting portion 233 and the second supporting portion 234 on the first mounting frame are disposed in an axial direction of the driving roller 210 and form sliding friction with the cleaning cloth 240. In the process of driving the cleaning cloth 240 to rotate by the rotation of the driving roller 210, the positions corresponding to the first supporting portion 233, the second supporting portion 234 and the cleaning cloth 240 are acted by friction resistance between the first supporting portion 233, the second supporting portion 234 and the cleaning cloth 240. Accordingly, the cleaning cloth 240 is unevenly stressed in the direction of the rotation axis of the driving roller 210. The driving roller 210 applies a lower tension to the first mounting frame at a position corresponding to the cleaning cloth 240 than other positions of the cleaning cloth 240 in the axial direction. Likewise, the rotating cleaning cloth 240 rotates the driven roller 220 by rotation. Friction occurs between the cleaning cloth 240 and the driven roller 220, and sliding friction is formed between the cleaning cloth and the second mounting frame. Under the same conditions, the friction force between the second supporting frame and the cleaning cloth is greater than the friction force between the driven roller 220 and the cleaning cloth. Therefore, a greater pulling force is required at the position corresponding to the second mounting frame and the cleaning cloth 240 to make the cleaning cloth 240 stressed uniformly in the axial direction, otherwise, the friction resistance at the position corresponding to the cleaning cloth 240 and the second mounting frame is large, the insufficient pulling force provided by the driving roller 210 to the cleaning cloth 240 will result in that the friction resistance cannot be overcome at the position corresponding to the cleaning cloth 240 and the second mounting frame, so that the cleaning cloth 240 is twisted due to different linear speeds of the cleaning cloth 240 in the axial direction, and the cleaning efficiency is reduced. The first mount and the second mount are thus at least partially offset in the axial direction of the cleaning assembly 200. I.e., a sliding friction occurs between the second mounting frame and the cleaning cloth 240 with a large friction, the second mounting frame is the driving roller 210 at a corresponding position of the driving roller 210 in a direction parallel to the side plates 212. That is, the driving roller 210 overcomes the rolling friction between the cleaning cloth 240 and rotates and drives the cleaning cloth 240 to rotate, so that the pulling force loss is small, and therefore, the pulling force obtained at the corresponding position of the second mounting frame is large enough to enable the cleaning cloth 240 to rotate against the friction force of the second mounting frame, thereby relieving the uneven stress degree of the cleaning cloth 240 in the axial direction of the driven roller 220 and reducing the possibility of twisting the cleaning cloth 240. Similarly, sliding friction is generated between the first mounting frame and the cleaning cloth 240, and the tensile force generated at the corresponding position of the first mounting frame cleaning assembly 200 is smaller than the tensile force generated on the driving roller 210. The first mounting frame and the second mounting frame are at least partially arranged in a staggered manner in the axial direction of the cleaning assembly 200, that is, at least part of the first mounting frame is arranged at a driven roller 220 in rolling contact with the cleaning cloth 240 along a corresponding position parallel to the direction of the side plate 212. The driven roller 220 and the cleaning cloth 240 are rotated against the rolling friction. Under the same conditions, the rolling friction force is smaller than the sliding friction force. Therefore, the resistance force that the cleaning cloth 240 rotates and drives the driven roller 220 to rotate is small, and the required pulling force is small. Therefore, even if a large sliding friction force needs to be overcome between the first mounting frame and the cleaning cloth 240, the provided pulling force is small, the cleaning cloth 240 can still be driven to rotate, and the driven roller 220 can be driven to rotate by the cleaning cloth 240. It can be seen that the corresponding positions for the first mounting frame and the cleaning cloth 240, which provide a smaller pulling force, are at least partially the driven roller 220 and the cleaning cloth 240, which are less resistant. For the case where it is required to provide a large pulling force to rotate the cleaning cloth 240 against the frictional force with the second mounting frame, the corresponding position of the second mounting frame in the rotation direction of the cleaning cloth 240 is at least partially the driving roller 210, and the rotation of the driving roller 210 provides a pulling force to the rotation of the cleaning cloth 240. Between the driving roller 210 and the cleaning cloth 240 is rolling friction, the cleaning cloth 240 rotates against frictional resistance, and under the same condition, the rolling friction is smaller than the sliding friction. Accordingly, a large pulling force can be provided to the position corresponding to the second mounting frame, so that the cleaning cloth 240 can rotate against the sliding friction force at the position corresponding to the second mounting frame. The problem that the cleaning cloth 240 is twisted due to uneven stress on the cleaning assembly 200 in the axial direction and uneven linear speeds of different positions of the cleaning cloth 240 is solved.
In contrast, if the first mounting frame and the second mounting frame are completely and correspondingly disposed in the axial direction of the cleaning assembly 200, the cleaning cloth 240 is severely and unevenly stressed in the axial direction, the cleaning cloth 240 may twist during the rotation process, the cleaning assembly 200 cannot stably run, the cleaning cloth 240 cannot be completely attached to the surface to be cleaned, and the cleaning efficiency is reduced. Specifically, the rotation of the driving roller 210 rotates the cleaning cloth 240, and rolling friction between the rotation of the driving roller 210 and the cleaning cloth 240, which hinders the movement of the cleaning cloth 240, is generated. When the cleaning cloth 240 rotates, the tension of the position corresponding to the first mounting bracket is smaller than the tension of the position corresponding to the cleaning cloth 240 and the driving roller 210. Further, the rotation of the cleaning cloth 240 drives the driven roller 220 to rotate, and the pulling force provided by the driving roller 210 to the cleaning cloth 240 pulls the cleaning cloth 240 to drive the driven roller 220 to rotate against the friction force between the driven roller 220 and the cleaning cloth 240. A second bracket is also arranged on the axis of the driven roller 220, and sliding friction exists between the rotation of the cleaning cloth 240 and the second bracket. Under the same conditions, the sliding friction is greater than the rolling friction. Therefore, in order for the cleaning cloth 240 to have the same linear velocity on the axis, a greater pulling force is required at the position corresponding to the second holder and the cleaning cloth 240. Otherwise, the cleaning cloth 240 is twisted due to uneven stress in the axial direction. But if the first mounting bracket is axially disposed relative to the cleaning assembly 200. The first mounting frame on the axis of the drive roller 210, which provides a pulling force for the rotation of the cleaning cloth 240, provides a pulling force that is smaller than the other positions of the axis, and the corresponding position of the cleaning cloth 240 that needs to be pulled is a second mounting frame that needs a larger pulling force to overcome the friction force between the second mounting frame and the cleaning cloth 240. Therefore, the cleaning cloth 240 is unevenly stressed in the axial direction of the cleaning assembly 200, which is easy to twist, so that the cleaning assembly 200 cannot be attached to the surface to be cleaned, and the operation is unstable, and the cleaning efficiency is reduced.
Thus, the first mount and the second mount are at least partially offset in the axial direction of the cleaning assembly 200. Namely, the position generating sliding friction force with the cleaning cloth 240, and at least part of the position corresponding to the position along the axial direction of the cleaning assembly 200 does not generate rolling friction with cleaning, so that the condition that the cleaning cloth 240 is stressed unevenly in the axial direction of the cleaning assembly 200 is reduced, and the cleaning cloth 240 is prevented from twisting as much as possible.
Optionally, a gap exists between at least a portion of the first and second mounting frames and the cleaning cloth 240, i.e., a clearance area exists between the first and/or second mounting frames and the cleaning cloth 240 that is not in contact with the cleaning cloth 240.
Further, as an implementation manner in the present embodiment. Optionally, when the cleaning assembly 200 wipes the surface to be cleaned, the pressure of the cleaning assembly 200 against the ground increases, a portion of the void area disappears, and the first mounting frame and/or the second mounting frame, which originally have a gap with the cleaning cloth 240, are abutted against the cleaning cloth 240. Optionally, when the cleaning assembly 200 wipes across a surface to be cleaned, a gap exists between at least a portion of the first and second mounting brackets and the cleaning cloth 240, i.e., a portion of the clearance area exists between the first and/or second mounting brackets and the cleaning cloth 240. The fixed mounting frame and the rotating cleaning cloth 240 are enabled to have an area, friction resistance between the first mounting frame and the second mounting frame and the cleaning cloth 240 is reduced, and uneven axial stress of the cleaning cloth 240 is prevented from twisting in the rotating process. The first and second mounting frames having a gap with the cleaning cloth 240 do not provide sufficient supporting force to the cleaning cloth 240 to maintain the cleaning cloth 240 in a tensioned state. When the cleaning cloth 240 wipes the surface to be cleaned, the cleaning portion 240 floats in a small range in the clearance area, affecting the cleaning effect. If the first mounting frame and the second mounting frame are arranged relatively, the first mounting frame and the second mounting frame have insufficient supporting force in the direction perpendicular to the axis of the cleaning assembly 200, and the cleaning cloth 240 covering the outer surfaces of the first mounting frame and the second mounting frame cannot be completely attached to the surface to be cleaned, so that the wiping effect is affected. On the other hand, the clearance between the first mounting frame and the second mounting frame is too big, and then probably get into the filth between mounting frame and the cleaning cloth and cause the clean difficulty of cleaning assembly, perhaps the dead problem of cleaning assembly card. Third, even if a gap exists between at least a portion of the first mounting frame and the second mounting frame and the cleaning cloth 240, the cleaning assembly 200 generates a downward pressure on the ground in the process of cleaning the ground, and the cleaning cloth 240 may still be abutted against the first mounting frame and the second mounting frame in the operation process, so that a frictional resistance is generated between the cleaning cloth 240 and the mounting frames in the rotation process, and the cleaning cloth 240 is prevented from rotating.
As another implementation manner of this embodiment, optionally, the rotation of the driving roller 210 and the driven roller 220 together drives the cleaning cloth 240 to rotate, and the transmission manner of driving the rotation of the driving roller 210 is driven by the rotation of the cleaning cloth 240, where the first mounting frame and the second mounting frame are at least partially arranged in a dislocation manner in the axial direction of the cleaning assembly 200, and are far from the same as the above scheme, and are not repeated here.
The driving roller 210 comprises a driving section 214 and a transmission section 215 which are positioned on the same axis, a first supporting part 233 is arranged on the supporting frame 230, and the first supporting part 233 is arranged between the driving section 214 and the transmission section 215. Dividing the drive roll 210 into two segments, a drive segment 214 and a transmission segment 215, each having an axial length less than that of the drive roll 210. The cleaning cloth 240 rotates the first supporting part 233 to not provide driving force for the rotation of the cleaning cloth 240, and the driving sections 214 and the transmission sections 215 at two sides of the first supporting part 233 rotate to drive the corresponding cleaning cloth 240 to rotate and simultaneously drive the cleaning cloth 240 positioned at the corresponding position of the first supporting part 233 in the middle to rotate. Compared with the case that the supporting parts are arranged at the end parts of the driving roller, the first supporting parts 233 are arranged between the driving section 214 and the transmission section 215, so that the rotation linear speeds of the cleaning cloth 240 in the axial direction of the driving roller are approximately the same, the possibility of twisting the cleaning cloth 240 is reduced, and the cleaning assembly is stably operated. The first supporting portion 233 is at least partially provided with the driven roller 220 along the corresponding position of the cleaning cloth 240 in the rotation direction, so that the first supporting portion 233 is not completely overlapped with the third supporting portion 235 or the fourth supporting portion 236 which are axially arranged on the driven roller 220 in the axial direction of the cleaning assembly 200, the rotation resistance of the cleaning cloth 240 at the corresponding position of the first supporting portion 233 is further reduced, the cleaning cloth 240 is prevented from being twisted, and the cleaning assembly 200 is ensured to run stably. Alternatively, the third support portion 235 and the fourth support portion 236 are located at both ends of the driven roller 220, respectively. One end of the driving roll 210 is rotatably connected with the second supporting part 234, the other end is detachably mounted with the ground brush 200, and the first supporting part 233 is arranged between the driving section 214 and the transmission section 215 of the driving roll 210.
Further, the cleaning assembly 200 is detachably connected to the floor brush 100. One end of the driving section 214 is movably connected with a driving component on the ground brush 100, and the other end is connected with the first supporting portion 233. When the user removes the cleaning assembly 200 from the floor brush 100, one end of the drive section 214 is separated from the drive assembly. The cleaning cloth 240 is placed in tension outside the driving roller 210 and the driven roller 220 so that the tensioned cleaning cloth 240 can sufficiently rub against the surface to be cleaned, wiping dirt. Thus, when the cleaning assembly 200 is removed from the brush 100, one end of the drive section 214 is in a suspended state. The tensioned cleaning cloth 240 generates a force to the driving roller 210 and the driven roller 220 to move toward the supporting frame 230, and the driving section 214 suspended at one end is easily deformed by the external force. If the axial length of the driving section 214 is longer, it forms a single cantilever with poor bending resistance, and is easily bent in a direction of being deflected toward the support frame 230 under the tension of the cleaning cloth 240. The cleaning assembly 200 cannot make the driving roller 210, the driven roller 220 and the supporting frame 230 cooperate to keep the cleaning cloth 240 in a tensioning state, and a certain gap is generated between the driving roller 210 bent towards the direction of the supporting frame 230 and the cleaning cloth 240, on the one hand, the cleaning cloth 240 cannot be driven to rotate by the rotation of the driving roller 210 so as to wipe the surface to be cleaned. On the other hand, the cleaning cloth 240 which cannot be tensioned is at least partially in a relaxed state, and even if the cleaning cloth 240 is rotated to some extent due to the small deformation of the driving roller 210, the dirt adsorbing capacity is reduced and the cleaning efficiency is reduced due to the fact that the cleaning cloth 240 is partially in the relaxed state. Meanwhile, if the driving roller 210 deforms, interference may occur at the matching position of the driving roller 210 and the driving assembly, so that the driving roller 210 and the driving assembly cannot be stably matched, interference occurs between the driving assembly and the driving roller 210 in the process that the driving assembly drives the driving roller 210 to rotate, transmission stability may be affected, and the driving assembly is blocked and scrapped due to the rising value. Therefore, the first supporting portion 233 fixedly connected to the supporting frame 230 is disposed at the other end of the driving section 214, so as to provide a stable supporting force to the driving section 214 with one suspended end, thereby improving the strength thereof. On the other hand, the driving roller 210 is divided into the driving section 214 and the transmission section 215, and the length of the driving section 214 with one suspended end is reduced on the premise of not changing the axial length of the cleaning assembly 200, so that the driving section can be kept stable under the support of the first support portion 233 even if one end is suspended, and the service life of the cleaning assembly 200 is prolonged.
Further, the diameter of the driving section 214 is equal to that of the transmission section 215, and under the condition that the radial diameter is unchanged, the smaller the axial length is, the smaller the deformation and the deformation amplification along the axial direction are when the lifting force of the uneven surface is exerted on the driving section, and the bending resistance is stronger. On the other hand, the driving roller 210 is divided into a driving section 214 and a transmitting section 215 with a first supporting portion 233 provided in the middle. When the surface cleaning device cleans an uneven surface, if the driving section 214 is stressed unevenly in the axial direction, the first supporting portion 233 provides supporting force for the ends of the driving section 214 and the driving section 215, so that the possibility that the driving section 215 cannot deform along with the driving section 214 is reduced or the deformation degree of the driving section 215 along with the driving section 214 is reduced. In the same way, the influence on the driving section 214 is reduced under the action of the first supporting portion 233 when the driving section 215 is deformed due to uneven stress in the axial direction. Deformation of the cleaning assembly 200, which may be caused when the cleaning assembly is impacted by external force, is reduced to a certain extent, and the operation stability of the surface cleaning device is improved. On the other hand, when the cleaning assembly 200 is mounted on the floor brush 100, one end of the driving roller 210 is rotatably connected to the side plate 212, and the other end is connected to the driving assembly and rotated by the driving assembly. If the driving roller 210 deforms axially, the matching positions of the driving roller 210 and the driving assembly may interfere, which affects the stable transmission and even causes the damage of the driving assembly due to jamming. The first support 233 provides support for the drive roll 210 in the axial direction thereof, and the drive roll 210 is supported in three points in the axial direction by the drive assembly on the floor brush 100, the first support 233, and the side plates 212. Compared with the technical scheme that the driving roller only has a driving component on the ground brush and the side plate to form two-point support in the prior art, the driving roller 210 supported by three points improves the strength of the driving roller 210, improves the bending resistance of the driving roller when being impacted by external force, and has stronger bending resistance and smoother operation.
Further, the diameter of the first supporting portion 233 is equal to or smaller than the diameter of the driving roller 210. When the cleaning cloth 240 is mounted on the support frame 230 in a tensioned state, it is at least partially abutted against the driving roller 210 and the driven roller 220.
Optionally, the diameter of the first support shelf 233 is smaller than the diameter of the drive roll 210. The first supporting part 233 is a circular ring-shaped fixing frame, and friction is generated between the cleaning cloth 240 and the first supporting part 233 during rotation, and friction force for preventing the cleaning cloth 240 from rotating is generated on the surface of the first supporting part 233. The cleaning cloth 240 is hindered from moving, and meanwhile, the cleaning cloth 240 is unevenly stressed in the axial direction of the driving roller 210 to be easily twisted, so that the floor wiping effect is affected. When the cleaning cloth 240 is mounted on the support frame 230 in a tensioned state, a gap exists between the cleaning cloth 240 and the first support portion 233, and the frictional force between the first support portion 233 and the drive roller 210 is reduced or eliminated, so that the resistance when the cleaning cloth 240 rotates is reduced, and the situation that the cleaning cloth 240 is unevenly stressed in the axial direction of the drive roller 210 when rotating is improved to some extent.
Further, the floor brush 100 is provided with a scraping strip 260 which is in interference arrangement with the cleaning cloth 240. The cleaning assembly 200 is mounted on the floor brush 100, and when the surface cleaning device performs a cleaning operation, the cleaning cloth 240 rotates to wipe the surface to be cleaned, and the cleaning cloth 240 carrying dirt is scraped by the scraping strip 260 provided in interference with the cleaning cloth 240 during rotation, so that the dirt is peeled off and finally collected into the dirt suction assembly. Corresponding to the above. The first supporting portion 233 is provided with ribs 2331 at positions corresponding to the scraping strips 260. The cleaning cloth 240 in a tensioned state is at least partially abutted against the ribs 2331, the ribs 2331 play a certain supporting role on the cleaning cloth 240, and the auxiliary supporting frame 230, the driving roller 210 and the driven roller 220 enable the cleaning cloth 240 to be in a tensioned state. On the other hand, in order to reduce the resistance when the cleaning cloth 240 rotates, the diameter of the first supporting part 233 is smaller than the diameter of the driving roller 210, a gap exists between the first supporting part 233 and the cleaning cloth 240, and when the cleaning cloth 240 is scraped by the scraping strip 260 at the corresponding position of the first supporting part 233, the cleaning cloth 240 is forced to escape, and the gap between the first supporting part 233 and the cleaning cloth 240 reserves an escape space for the cleaning cloth 240 to move. The cleaning cloth 240 at this point cannot be scraped by the scraping strip 260 to remove dirt adhered thereto. In order to ensure the cleaning effect of the scraping strip 260 on the cleaning cloth 240, ribs 2331 are disposed at positions corresponding to the first supporting portion 233 and the scraping strip 260, so that the cleaning cloth 240 is kept in a tensioned state, and in the process of scraping the cleaning cloth 240 by the scraping strip 260, the cleaning cloth 240 cannot deform to escape from the scraping of the scraping strip 260 even if the cleaning cloth 240 is scratched by the scratching force due to the supporting force of the ribs 2331. Thereby scraping off dirt adhered to the cleaning cloth 240, improving the use time of the cleaning cloth 240, and improving the cleaning efficiency.
Optionally, the diameter of the first support shelf 233 is equal to the diameter of the drive roll 210. The cleaning cloth 240 is mounted on the supporting frame 230 in a tensioned state in abutment with the driving roller 210, the diameter of the first supporting frame 233 is equal to the diameter of the driving roller 210, and the first supporting frame 233 abuts against the cleaning cloth 240. The surface of the first supporting frame 233 and the cleaning cloth 240 generate sliding friction, the cleaning cloth 240 cannot be driven to rotate, the first supporting frame 233 is arranged between the driving section 214 and the transmission section 215, and the cleaning cloth 240 corresponding to the first supporting frame 233 rotates under the driving of the driving section 214 and the transmission section 215. Because the rollers driving the cleaning cloth 240 to rotate are arranged at the two ends of the first supporting frame 233, the cleaning cloth 240 at the corresponding position of the first supporting frame 233 rotates along with the first supporting frame 233, and the possibility of twisting the cleaning cloth 240 is reduced. Meanwhile, the first supporting frame 233 enables the cleaning cloth 240 to be kept in a tensioning state, and cleaning efficiency is improved.
Further, the cleaning assembly 200 is mounted on the floor brush 100, and the bottom of the first supporting portion 233, which is close to the surface to be cleaned, is provided with supporting ribs, so that the cleaning cloth 240 sleeved on the supporting frame 230 is kept in a tensioned state. The supporting ribs are abutted with the cleaning cloth 240, so that the pressure on the ground when the cleaning cloth 240 wipes the surface to be cleaned is increased, the cleaning cloth 240 is guaranteed to be stably attached to the ground, and the cleaning efficiency is improved. On the other hand, the supporting rib is arranged at the bottom of the first supporting portion 233 to improve the supporting strength of the first supporting portion 233, and when the surface cleaning device runs on the uneven surface to be cleaned, the first supporting portion 233 with the supporting rib is not easy to deform under the action of external force, and the supporting rib plays a role in improving strength and buffering external force.
One end of the driving roller 210 is connected with a driving assembly on the floor brush 100, and the other end is connected with a side plate 212, so that the axial length of the driving roller 210 is long to ensure a cleaning area. If the driving roller 210 is a strip roller supported only by the driving assembly and two ends of the side plate 212, the driving roller 210 is stressed unevenly in the axial direction when cleaning the uneven surface to be cleaned, and the protrusions or foreign matters on the surface to be cleaned locally generate upward lifting force to the driving roller 210 to deform the surface to be cleaned. Because the axial length of the driving roller 210 is longer, after the stress point is deformed by the lifting force, the deformation of the stress point gradually increases along the axial direction of the driving roller 210, so that the driving roller 210 is lifted along the axial direction. The pressure of the cleaning assembly 200 against the floor is reduced, and even the bottom portion area of the cleaning assembly 200 cannot abut against the surface to be cleaned, the surface cleaning apparatus cannot achieve the cleaning effect.
As another implementation scheme in this embodiment, optionally, the driving assembly includes a first driving motor driving the first transmission head to rotate and a second driving motor driving the second transmission head to rotate, and the first driving motor and the second driving motor respectively drive the first transmission head and the second transmission head to synchronously rotate.
Further, the drive section 214 is less than the drive section 215. One end of the driving section 214 is movably connected with the driving component of the floor brush 100, one end of the driving section 214 is suspended after the cleaning component 200 is taken down from the floor brush 100, the length of the driving section 214 is made to be as small as possible on the premise that the axial width of the cleaning component 200 is unchanged, and the supporting strength of the first supporting part 233 on the driving section 214 is improved. In one aspect, the drive section 214 is prevented from being deformed by force. On the other hand, even if the driving section 214 is deformed under force, the deformation amplitude in the axial direction is small compared with that of a roller with a longer axial length due to the relatively small length of the driving section 214, and the operation of the cleaning assembly 200 is not affected to the greatest extent. Further, the driving section 214 has a length L Driving device The transmission section 215 has a length L Transmission device Ratio L of length of drive section 214 to length of transmission section 215 Driving device :L Transmission device Is 1:1-1:8. Optional L Driving device And L Transmission device The ratio of 1:1, the length of the drive section 214 is 120mm and the length of the transmission section 215 is 120mm. Alternatively, L Driving device And L Transmission device The ratio of 1:3, the length of the drive section 214 is 60mm and the length of the transmission section 215 is 180mm. Alternatively, L Driving device And L Transmission device The ratio of 1:6, the length of the drive section 214 is 40mm and the length of the drive section 215 is 240mm. Alternatively, L Driving device And L Transmission device The ratio of the lengths of the driving section 214 is 30mm and the driving section 215 is 240mm.
Further, the driving section 214 and the driven section 215 are equal in diameter. Alternatively, the driving section 214 and the driven section 215 are two rolls that are disconnected. Alternatively, the driving section 214 and the driven section 215 may be two sections on one roller.
Alternatively, the length of the driving roller 210 and the driven roller 220 in the axial direction is equal to each other, and is between 220mm and 300mm, to secure the cleaning area of the cleaning assembly 200.
The support frame 230 is further provided with a second supporting portion 234 fixedly connected with the side plate 212, one end of the transmission section 215 is connected with the side plate 212 through the second supporting portion 234, and the other end is connected with the first supporting portion 233. The two ends of the transmission section 215 are fixedly connected by the first supporting part 233 and the second supporting part 234, respectively, and when the surface cleaning device performs cleaning operation, even if external force impact is applied, the two ends of the transmission section 215 are fixedly connected, so that the transmission section 215 is fixed and is not easy to deform. On the other hand, since both ends are fixed by the supporting frame 230, even if the local stress portion deforms, the deformation of the transmission section 215 is gradually amplified in the axial direction under the supporting action of the first supporting portion. Third, the drive roller 210 is divided into a drive section 214 and a transmission section 215 without changing the axial width of the cleaning assembly 200, the length of the transmission section 215 is smaller than that of the drive roller 210, the axial length of the transmission section 215 is reduced, and the strength of the drive roller is improved. Fourth, when the cleaning assembly 200 is detached from the floor brush 100, the transmission section 215 is still fixed to the support frame 230 from both ends by the first support portion 233 and the second support portion 234, and the transmission section 215 is stably mounted on the support frame 230 without relative movement by overcoming the tension applied to the transmission section 215 by the tensioned cleaning cloth 240 in the direction of the support frame 230. In summary, the two ends of the transmission section 215 are fixed, so that the stable operation of the transmission section 215 is ensured. The service life of the cleaning assembly 200 is prolonged, and the operation stability of the cleaning assembly 200 is improved.
As an implementation manner of this embodiment, optionally, a fifth supporting portion may be further provided on the supporting frame 230, where the driven roller 220 includes a third roller connected to the ground brush 100 and a fourth roller connected to the side plate 212, and the fifth supporting portion is provided between the third roller and the fourth roller. The driven roller 220 is supported at three points in the axial direction by the third support portion 235, the fifth support portion, and the fourth support portion 236, and the driven roller 220 is fixed. The strength of the driven roller 220 is improved, and the stress deformation of the driven roller 220 is reduced or avoided without changing the axial cleaning area of the cleaning assembly 200.
As another implementation manner in this embodiment, optionally, a sixth supporting portion may be further provided on the supporting frame 230, where the sixth supporting portion and the first supporting portion 233 are located on the same axis, and split the driving roller 210 into three sections. The drive assembly, the first support 233, the sixth support, and the side plates 212 together form a four-point support for the drive roller 210 in the axial direction of the drive roller 210. The strength of the driving roller 210 is improved without changing the axial area of the cleaning assembly 200, and the driven roller 220 is prevented from being deformed by force. Optionally, a seventh supporting portion on the same axis as the first supporting portion 233 and the sixth supporting portion may be further disposed on the supporting frame 230, so that the driving roller 210 is split into four sections, and five-point support is formed in the axial direction of the driving roller 210, so that the strength of the driving roller 210 is improved, and deformation is avoided.
Further, since the cleaning cloth 240 rotates to wipe the surface to be cleaned by the driving roller 210, sliding friction occurs between the supporting part of the supporting frame 230 and the cleaning cloth 240, and rolling friction occurs between the driving roller 210 and/or the driven roller 220 and the cleaning cloth 240. On the premise that the surface roughness is the same, the sliding friction force is larger than the rolling friction force, so that the more the supporting parts are arranged on the same axial direction, the more difficult the cleaning cloth 240 rotates along with the driving roller 210 or drives the driven roller 220 to rotate along with the driving roller. Therefore, it is preferable that a first supporting portion 233 is provided on the driving roller 210 to divide the driving roller 210 into a driving section 214 and a transmitting section 215, and to provide three-point support to the driving roller 210 in the axial direction. Not only can the bending resistance of the driving roller 210 be improved and the stable operation of the cleaning assembly 200 be ensured, but also the friction between the driving roller 210 and the cleaning cloth 240 in the axial direction can be prevented from being too large, and the running time of the surface cleaning device can be shortened due to the fact that the output power of the driving assembly of the operating room of the surface cleaning cloth 240 is too large. Alternatively, the problem of low cleaning efficiency due to the slow rotation speed of the cleaning cloth 240 is avoided.
Further, a connecting portion 216 is disposed in the first supporting portion 233, one end of the connecting portion 216 is connected to the driving section 214, and the other end is connected to the driving section 215, so that the driving section 214 and the driving section 215 rotate synchronously. The drive section 214, the transmission section 215 and the connection 216 in this embodiment together constitute the rotational length of the drive roll 210. The first supporting portion 233 disposed between the driving section 214 and the transmission section 215 is a fixed supporting portion, but the cleaning cloth 240 at the corresponding position can rotate together under the driving of the brush rollers at both sides, so as to provide a partial driving force for the rotation of the driven roller 220, and reduce the situation that the cleaning cloth 240 is unevenly stressed in the axial direction of the cleaning assembly 200.
Further, the driving section 214 and the driven section 215 are equal in diameter. And the driving section 214 and the driven section 215 at least partially abut the cleaning cloth 240 when the cleaning cloth 240 is tensioned and power the cleaning cloth 240 to rotate. The active roller 210 and the cleaning cloth 240 are driven to rotate by an effective length, so that the cleaning cloth 240 is as wide as possible, and the cleaning area of the cleaning assembly 200 is increased. Alternatively, the driving section 214 and the driven section 215 are two disconnected rollers, and are synchronously rotated by the driving assembly through the connection part.
Optionally, the driving section 214 and the driven section 215 are two sections of a roller, a connecting part with a diameter smaller than that of the driving section 214 and the driven section 215 is arranged between the driving section 214 and the driven section 215, the first supporting part 233 is of a detachable upper and lower structure, and is buckled on the upper surface and the lower surface of the connecting part to axially limit the connecting part.
Further, the first supporting portion 233 is a circular ring with a through hole therein, and the connecting portion 216 is sleeved in the circular ring. The diameter of the connecting part 216 is smaller than that of the driving roller 210, and the connecting part is sleeved in the first supporting part 233, the first supporting part 233 circumferentially limits the connecting part 216, and when the driving roller 210 is unevenly deformed, the first supporting part 233 provides supporting force for the driving roller 210, so that the influence of external force on the driving roller 210 is reduced, and the cleaning assembly 200 is stable in operation. On the other hand, the driving section 214 or the transmission section 215 of the driving roller 210 is forced to deform, the deformation of which is amplified along the axial direction of the driving roller 210, and the connection portion 216 limited circumferentially by the first supporting portion 233 blocks or reduces the amplification of the axial deformation of the driving roller 210 to some extent.
Further, a bearing 2332 is sleeved in the ring, and the connecting part 216 is sleeved in the bearing 2332 to enable the driving section 214 and the transmission section 215 to synchronously rotate.
In one specific implementation manner provided in this embodiment, the connecting portion 216 is a rotating shaft sleeved in the bearing 2332 and extending towards two ends, one end of the rotating shaft is connected with the driving section 214, and the other end is connected with the transmission section 215. Specifically, the end of the driving section 214, which is matched with the connecting portion 216, is a groove, and the connecting portion 216 is inserted into the groove through the first supporting portion 233 and is fixedly connected with the driving section 214 by a screw. The mating of the transmission segment 215 with the connection 216 is the same as the mating of the driving segment 214 with the connection 216. By adopting the scheme, the connecting part 216 is sleeved in the driving section 214, the first supporting part 233 and the transmission section 215, on one hand, stable transmission of the driving section 214 and the transmission section 215 is realized, and the driving section 214 and the transmission section 215 can keep synchronous rotation. On the other hand, dirt is prevented from entering gaps between the driving section 214 and the connecting portion 216, between the transmission section 215 and the connecting portion 216, and problems of seizure, scrapping and the like of the driving roller 210 in operation are avoided, so that the cleaning effect is affected, and the service life of the surface cleaning device is reduced.
In another implementation manner provided in this embodiment, alternatively, the connection portion 216 is a protruding portion disposed at one end of the transmission section 215, and the connection portion 216 is sleeved in the bearing 2332 and passes through a through hole of the first supporting portion 233 to be connected with the driving section 214. The driving section 214 is provided with a groove at one end matched with the connecting part 216, and the protruding part penetrates through the groove and is fixedly connected with the groove through a screw. The transmission section 215 is sleeved in the driving section 214 through the connecting part 216, and the driving section 214 rotates to drive the connecting part 216 sleeved in the driving section 214 to synchronously rotate, so that the transmission section 215 and the driving section 214 synchronously rotate, and the cleaning cloth 240 is driven to be uniformly stressed in the axial direction and stably run when the surface to be cleaned is wiped. The connecting part 216 is arranged on the transmission section 215 and is integrally formed with the transmission section 215, and no installation gap exists between the connecting part 216 and the transmission section 215, so that the possibility of dirt blocking in the gap in the rotation process of the driving roller 210 is reduced. On the other hand, the transmission section 215 rotating with the driving section 214 partially extends into the driving section 214, so that the synchronism of the rotation of the transmission section 215 and the driving section 214 is improved. The connecting part 216 is sleeved inside the driving section 214, so that the phenomenon that the operation stability of the surface cleaning device is affected due to the blocking caused by the entry of dirt is avoided.
In another implementation manner provided in this embodiment, alternatively, the connection portion 216 is a protruding portion disposed at one end of the driving section 214, and the connection portion 216 is sleeved in the bearing 2332 and passes through a through hole of the first supporting portion 233 to be connected with the driving section 215. The end of the transmission section 215, which is matched with the driving section 214, is provided with a groove, and the protruding part is penetrated in the groove and fixedly connected with the groove through a screw. The driving section 214 is at least partially sleeved in the transmission section 215 through the connecting part 216, so that the driving section 214 sleeved in the transmission section 215 rotates and drives the transmission section 215 to synchronously rotate, and the cleaning cloth 240 is uniformly stressed in the axial direction and stably runs when wiping the surface to be cleaned. The connecting portion 216 is disposed on the driving section 214 and integrally formed with the driving section 214, and no installation gap exists between the connecting portion 216 and the driving section 214, so that the possibility of dirt blocking in the gap during rotation of the driving roller 210 is reduced. On the other hand, the driving section 214 extends into the transmission section 215 partially, so that the synchronism of the rotation of the transmission section 215 and the driving section 214 is improved. The driving section 214 is sleeved in the transmission section 215, so that the phenomenon that dirt enters to cause blocking is avoided, and the operation stability of the surface cleaning device is affected.
Further, the connecting end of the connecting portion 216 disposed on the driving section 214 is a hexagonal inclined plane 2162, a hexagonal groove 2335 matching with the hexagonal inclined plane 2162 is disposed in the groove of the driving section 215 matching with the connecting portion 216, and the connecting portion 216 is fixedly connected with the driving section 215 through countersunk screws. The inclined surface of the hexagonal inclined surface 2162 inserted into the recess of the transmission segment 215 abuts against the inner wall of the hexagonal recess 2335. When the driving section 214 rotates, the connecting part 216 rotates along with the driving section 214, and when the connecting part 216 rotates, the hexagonal inclined surface 2162 rotates and drives the hexagonal groove 2335 abutted against the hexagonal inclined surface 2162 to twist, so that the transmission section 215 synchronously rotates along with the driving section 214. By adopting the technical scheme, the stable transmission between the driving section 214 and the transmission section 215 is ensured, and the cleaning cloth 240 is prevented from torsional deformation, so that the cleaning effect is prevented from being influenced.
In another implementation manner provided in this embodiment, alternatively, the driving section 214, the driving section 215 and the connecting section 216 are integrally formed into one roller, the diameters of the driving section 214 and the driving section 215 are equal, the diameter of the connecting section 216 is smaller than that of the driving section 214, the first supporting section 233 is mounted in an up-down clamping manner, and is buckled on the upper surface and the lower surface of the connecting section 216 to limit the circumference of the connecting section. Alternatively, the first supporting portion 233 is provided with a notch, so that the connecting portion 216 is engaged with the first supporting portion 233 through the notch.
Further, the first support 233 includes a semi-closed end 2336 abutting the drive section 214 and an open end 2337 abutting the drive section 215. Semi-closed end 2336 includes a sidewall disposed opposite drive section 214 and a through-hole therethrough. Open end 2337 includes an inwardly recessed wrap and an annular wall surrounding the exterior of the wrap.
The cleaning assembly 200 is mounted on the floor brush 100, one end of the driving section 214 is abutted against the driving assembly, and the other end is abutted against the side wall of the first supporting portion 233, so that the left and right limiting of the two ends of the driving section 214 is realized. The drive section 214 is prevented from being displaced left and right by rotation when the surface cleaning device works, or the drive section 214 is prevented from being displaced left and right by uneven stress in the axial direction when the surface cleaning device walks on an uneven surface. Resulting in the drive section 214 not being stably supported and rotating the cleaning cloth 240, which affects the stability of the operation of the surface cleaning apparatus. By adopting the technical scheme, the driving section 214 is limited left and right by utilizing the driving assembly and the side wall of the first supporting part 233, so that the driving section 214 is prevented from left and right displacement, and the running stability is ensured.
When the cleaning assembly 200 is removed from the floor brush 100, one end of the drive section 214 is suspended. The cleaning cloth 240 held in a tensioned state has an inward pressing action on the driving roller 210 and the driven roller 220. The driving section 214 suspended at one end is required to be stable against the inward pressing force of the cleaning cloth 240 under the supporting force of the first supporting portion 233. The side wall of the first supporting portion 233 abuts against the driving section 214 to provide a stable supporting force for the driving section 214.
On the other hand, the first supporting portion 233 has a sidewall at the contact portion with the driving section 214, and the diameter of the through hole in the sidewall is smaller than the outer diameter of the first supporting portion 233. The diameter of the connection portion 216, which passes through the first support portion 233 through-hole to enable the driving section 214 and the transmitting section 215 to rotate synchronously, is smaller than the diameter of the driving section 214, and the same connection portion 216 has a diameter smaller than the diameter of the transmitting section 215. When the cleaning assembly 200 is detached from the floor brush 100, if the suspended driving section 214 at one end deforms under the tension of the cleaning cloth 240, the connecting portion 216 penetrating into the driving section 214 or integrally formed with the driving section 214 may deform along with the deformation of the driving section 214, and the deformation degree thereof is enlarged along the axial direction of the driving roller 210. By adopting the scheme, the diameter of the connecting part 216 is smaller than that of the driving section 214, the diameter of the connecting part 216 is reduced, the bending strength of the connecting part 216 is improved, on one hand, the connecting part 216 is not easy to deform along with the deformation of the driving section 214, and therefore after the connecting part 216 deforms, the other end of the connecting part 216 is connected with the driving section 215 or integrally formed, the driving section 215 deforms along with the connecting part, and the influence caused by the deformation of the driving section 214 is enlarged. The service life of the cleaning assembly 200 is prolonged and the deformation effects are reduced. On the other hand, the connecting portion 216 is sleeved in the side wall of the first supporting portion 233, and the connecting portion 216 is circumferentially limited by the side wall of the semi-closed end 2336 of the first supporting portion 233. The connection part 216 is prevented from deforming when the driving section 214 deforms under external force, the axial deformation of the driving section 214 is amplified, and the running stability of the surface cleaning device is reduced.
Third, the first supporting portion 233 with the semi-closed end 2336 has a sidewall abutting against the driving section 214, which can prevent dirt from entering the driving section 215 from the side, so that the driving section 215 is blocked, and the cleaning cloth 240 is twisted due to abnormal rotation, thereby affecting the operation stability and cleaning efficiency.
As an implementation manner of this embodiment, alternatively, the first supporting portion 233 may be a separate part, which is detachably mounted to the supporting frame 230, so as to allow the user to detach, wash and replace.
Further, the floor brush 100 is provided with a positioning portion 2123 matched with the side plate 212, and the side plate 212 and the positioning portion 2123 are matched and installed to realize the matched limit of the side plate 212 on the floor brush 100, so that the stable installation of the cleaning assembly 200 is ensured. The driving roller 210 and the driven roller 220 are fixedly installed with the side plate 212 through the supporting frame 230, and both ends of the cleaning assembly 200 are respectively fixed by the floor brush 100 and the side plate 212, so that the cleaning assembly is stably limited in the axial direction when the floor brush 100 rotates in the accommodating cavity 211 and cannot be separated from the accommodating cavity 211.
Further, the side plate 212 includes a stopper 2122 and an abutment 2121. The abutting portion 2121 is an elongated connection plate that cooperates with the support frame 230, and the driving roller 210 and the driven roller 220 are mounted on the side plate 212 and are rotatably connected to the side plate 212. The limiting portion 2122 extends rearward in a direction perpendicular to the axial direction of the driving roller 210 and/or the driven roller 220, and the limiting portion 2122 cooperates with the positioning portion 2123 to realize the cooperative installation of the cleaning assembly 200 and the floor brush 100.
As an implementation of this embodiment, optionally, the cleaning assembly 200 is detachably mounted to the floor brush 100 through the limiting portion 2122.
Further, the floor brush 100 is provided with a positioning portion 2123 that cooperates with the limiting portion 2122. Further, the limiting portion 2122 is a limiting protrusion, and the positioning portion 2123 is a limiting concave cavity matched with the limiting protrusion. Alternatively, the limiting portion 2122 is a limiting cavity, and the positioning portion 2123 is a limiting protrusion matched with the limiting cavity.
Further, the limit portion 2122 of the side plate 212 is a magnet, and the positioning portion of the floor brush 100 is a magnet with a magnetic opposite to the limit portion 2122 or a metal sheet that can be attracted to the magnet of the limit portion 2122. Alternatively, the stopper 2122 may be a metal sheet that can be attracted to a magnet, and the positioning portion on the floor brush 100 may be a magnet that can be attracted to the stopper 2122. Allowing the side plate 212 to engage with the floor brush 100 through the stopper 2122.
Further, the limiting portion 2122 is a limiting protrusion or a limiting groove provided with a magnet, and the positioning portion on the floor brush 100 matched with the limiting portion 2122 is a limiting groove or a limiting protrusion provided with a magnet or a metal sheet.
The central axis of the cleaning assembly 200 is disposed below the axis of the stop 2122. The axis of the cleaning assembly 200 is a straight line L formed by the midpoint of the center line of the driving roller 210 and the driven roller 220, and the straight line L is lower than the center line M of the limit portion 2122 on the side plate 212. So that the fixed end of the cleaning assembly 200 with the floor brush 100 is higher than the center of the cleaning assembly 200. The cleaning assembly 200 is fixedly or detachably mounted on the floor brush 100 by the side plates 212 such that the side plates 212 generate a downward force on the cleaning assembly 200, lifting the floor pressure when the cleaning assembly 200 wipes the surface to be cleaned. When the surface cleaning device walks on the rugged surface to be cleaned, uneven stress is easy to tilt upwards under the action of external force in the axial direction, the side plates 212 give downward pressure to the cleaning assembly 200, the cleaning assembly 200 is prevented from tilting upwards to a certain extent, the bending resistance of the cleaning assembly 200 is improved, local deformation of the cleaning assembly is not easy to occur, and cleaning efficiency is ensured.
The driving roller 210 and the driven roller 220 on the cleaning assembly 200 are disposed in parallel. Further, the radial diameters of the driving roller 210 and the driven roller 220 may be the same or different. To secure a cleaning area, the axial lengths of the driving roller 210 and the driven roller 220 are long. Alternatively, the driving roller 210 and the driven roller 220 are brush rollers having the same radial diameter. Further, on the basis of ensuring the cleaning force of the cleaning assembly 200 on the surface to be cleaned, the thickness of the floor brush 100 is reduced, so that the floor brush is convenient for a user to operate, and the driving roller 210 and the driven roller 220 can be selected as the double small roller crawler-type cleaning assembly 200 with the same radial diameter and the radial diameter of 25mm-35 mm. On the other hand, a small roller having a smaller diameter in the radial direction of the driving roller 210 and the driven roller 220 has a better strength than a roller having a larger diameter, and is less deformed when being impacted by an external force. On the other hand, the small roller with small radial diameter is selected to thin the whole height of the floor brush 100, so that the floor brush 100 can easily extend into gaps such as the bed bottom and the table bottom, and the ultrathin surface cleaning device for cleaning the sanitary dead angle is realized.
As an implementation in this embodiment, the driving roller 210 and the driven roller 220 are brush rollers having different radial diameters, as an option. Further, the drive roller 210 is closer to the limit portion 2122 on the side plate 212 than the driven roller 220, and the radial diameter of the drive roller 210 is larger than the radial diameter of the driven roller 220. Therefore, the axial center of the driving roller 210 is higher than that of the driven roller 220. The side plate 212 mounts the cleaning assembly 200 on the floor brush 100 through the stopper 2122, and the side plate 212 has a pressing force on the cleaning assembly 200. The driving roller 210 near the limit portion 2122 of the side plate 212 receives a small downward pressure, and the driven roller 220 relatively far from the limit portion 2122 receives a large downward pressure, so that the mounting strength of the driven roller 220 far from the limit portion 2122 is satisfied, and the side plate 212 is not tilted under the pressing. The driven roller 220 is stably abutted against the surface to be cleaned, so that the friction force between the driven roller and the surface to be cleaned is increased, and the cleaning efficiency is improved.
Further, the cleaning cloth 240 is sleeved on the driving roller 210 and the driven roller 220, and the length of the cleaning cloth 240 in the axial direction is equal to or greater than the length of the driving roller 210 and the driven roller 220 in the axial direction. Alternatively, the cleaning cloth 240 has a length in the axial direction that is greater than the lengths in the axial directions of the driving roller 210 and the driven roller 220. The cleaning cloth 240 completely shields the driving roller 210 and the driven roller 220, and the cleaning cloth 240 has a large contact area with the driving roller 210 and the driven roller 220, can sufficiently rub against the driving roller 210 and the driven roller 220, and is rotated by the driving roller 210. Meanwhile, the driving roller 210 and the driven roller 220 which are abutted against the cleaning cloth 240 provide a downward force for the cleaning cloth 240 to wipe the surface to be cleaned, so that the cleaning cloth 240 is fully contacted with the surface to be cleaned, and the cleaning efficiency is improved.
Optionally, the third support portion 235 and the second support portion 234 are both disposed on the side plate 212. Further, the width L2 of the second supporting portion 234 along the axial direction of the cleaning assembly 200 is smaller than the width L3 of the third supporting portion 235 along the axial direction of the cleaning assembly 200, so that the rotation length of the driving roller 210 is longer than that of the driven roller 220, and the projection of the driving roller 210 on the cleaning assembly axis L covers the projection of the driven roller 220 on the cleaning assembly axis L.
Further, at least one of the second supporting portion 234 and the third supporting portion 235 provided on the side plate has a diameter smaller than that of the coaxially disposed brush roller. The second support 234 and the third support 235 are at least partially disposed correspondingly and are located at the ends of the driving roller 210 and the driven roller 220, respectively. The supporting portion is abutted with the cleaning cloth 240, the cleaning cloth 240 cannot be prevented from rotating by the rotating pulling force provided by the cleaning cloth 240, and the second supporting portion 234 and the third supporting portion 235 are located at the end of the brush roller, so that only the cleaning cloth 240 at the corresponding position of the brush roller drives the cleaning cloth 240 to rotate, and the provided pulling force is limited. The second supporting portion 234 and the third supporting portion 235 are in contact with the cleaning cloth 240, and at least part of the corresponding positions of the second supporting portion 234 and the third supporting portion 235 cannot provide a tensile force in the rotation direction of the cleaning cloth 240, so that the cleaning cloth 240 is not stressed uniformly and is easy to twist. Therefore, at least one diameter of the second supporting portion 234 and the third supporting portion 235 is smaller than the diameter of the coaxially arranged brush roller, so that the resistance of the corresponding position of the supporting portion is reduced, and the torsion of the cleaning cloth 240 is slowed down.
Optionally, the diameter of the third support 235 and/or the fourth support 236 is smaller than the diameter of the driven roller 220. When the cleaning cloth 240 is mounted on the support frame 230 in a tensioned state, it is at least partially abutted against the driving roller 210 and the driven roller 220, and rotated by the driving roller 210 and/or the driven roller 220. The third support portion 235 and the fourth support portion 236 are fixed brackets, and if the cleaning cloth 240 is abutted against the third support portion 235 and the fourth support portion 236 during rotation, friction force for preventing the cleaning cloth 240 from rotating is generated on the surfaces thereof. The cleaning cloth 240 is hindered from moving, and meanwhile, the cleaning cloth 240 is not uniformly stressed along the axial direction of the driven roller 220 and is easy to twist, so that the floor wiping effect is affected. When the cleaning cloth 240 is mounted on the support frame 230 in a tensioned state, the third support portion 235 and/or the fourth support portion 236 are made smaller in diameter than the driven roller 220, and a gap is formed between the cleaning cloth 240 and the third support portion 235 and/or the fourth support portion 236, friction between the third support portion 235 and/or the fourth support portion 236 and the cleaning cloth 240 is reduced or eliminated, so that resistance when the cleaning cloth 240 rotates is reduced, and uneven stress of the cleaning cloth 240 in the axial direction of the driven roller 220 when rotating is improved to some extent.
Further, the cleaning assembly 200 is mounted on the floor brush 100, and the third support portion 235 and/or the fourth support portion 236 are provided with second support ribs near the bottom of the surface to be cleaned, so that the cleaning cloth 240 sleeved on the support frame 230 is kept in a tensioned state. The second support rib is abutted with the cleaning cloth 240 to increase the pressure on the ground when the cleaning cloth 240 wipes the surface to be cleaned, so that the cleaning cloth 240 is ensured to be stably attached to the ground, and the cleaning efficiency is improved. On the other hand, the second supporting ribs are arranged at the bottoms of the third supporting portions 235 and/or the fourth supporting portions 236 to improve the supporting strength of the third supporting portions 235 and/or the fourth supporting portions 236, and when the surface cleaning device runs on the rugged surface to be cleaned, the third supporting portions 235 and/or the fourth supporting portions 236 with the second supporting ribs are not easy to deform under the action of external force, and the supporting ribs play roles in improving strength and buffering external force.
Example two
As shown in fig. 12, the difference between the present embodiment and the above embodiment is that the third supporting portion 235 and the second supporting portion 234 are disposed on the side plate 212, and the width L2 of the second supporting portion 234 along the axial direction of the cleaning assembly 200 is smaller than the width L3 of the third supporting portion 235 along the axial direction of the cleaning assembly 200.
The driving assembly is connected with the driving roller 210, and the driving roller 210 rotates under the driving of the driving assembly and drives the cleaning cloth 240 to rotate. The third support portion 235 and the second support portion 234 are provided on the side plate 212 for fixing the driven roller 220 and the driving roller 210, respectively, so that they can be stably mounted with the supporting frame 230. In order to make the cleaning cloth 240 sleeved on the driving roller 210 and the driven roller 220 uniformly stressed in the axial direction, the first mounting frame and the second mounting frame are at least partially arranged in a dislocation manner in the axial direction of the cleaning assembly 200, so that the cleaning cloth 240 is prevented from being twisted due to uneven stress in the axial direction. When the cleaning cloth 240 rotates, the second support portion 234 and the third support portion 235 generate sliding friction with the cleaning cloth 240, and the generated resistance is large. The second supporting portion 234 and the third supporting portion 235 are both disposed on the side plate 212, so that at least a portion of the second supporting portion 234 and the third supporting portion 235 overlap each other along a direction parallel to the side plate 212, and the cleaning cloth 240 located at a corresponding position of the second supporting portion 234 and the third supporting portion 235 cannot be driven to rotate by the driving roller 210 and the tensile force supplied thereto, and the friction force of the second supporting portion 234 and the third supporting portion 235 to the cleaning cloth 240 is overcome. The width L2 of the second support part 234 along the direction of the cleaning assembly 200 is made smaller than the width L3 of the third support part 235 along the direction of the cleaning assembly 200, even if the corresponding position of the third support part 235 along the direction of rotation of the cleaning cloth 240 is at least partially the driving roller 210, the rotation length L of the driving roller 210 Main unit Greater than the length L of rotation of the driven roller 220 From the slave . The rotation of the drive roller 210 provides a pulling force to the cleaning cloth 240 to cause the cleaning cloth 240 to rotate, enabling it to rotate against the resistance of the third support 235 to the cleaning cloth 240. The influence of the second support portion 234 and the third support portion 235 on the rotation of the cleaning cloth 240 is minimized so that it can be stably rotated.
Alternatively, the first supporting portion 233 and the second supporting portion 234 are provided at both ends of the driving roller 210, respectively, and the third supporting portion 235 and the fourth supporting portion 236 are provided at both ends of the driven roller 220, respectively. The width L1 of the first support portion 233 may be smaller than the width L2 of the second support portion 234, or may be equal to the width of the second support portion 234.
Alternatively, the driving roller 210 includes a driving section 214 and a transmission section 215, the first supporting portion 233 is disposed between the driving section 213 and the transmission section 215, one end of the driving roller 210 is connected to the driving assembly, the other end is connected to the second supporting portion 234, and the third supporting portion 235 and the fourth supporting portion 236 are disposed at two ends of the driven roller 220, respectively.
Further, the supporting frame 230 is further provided with a second rib 237 along the rotation direction of the cleaning cloth 240, the second rib 237 is abutted against the cleaning cloth 240, and when the cleaning cloth 240 is sleeved on the supporting frame 230 to maintain a tensioning state, the second rib 237 increases the pressure of the cleaning cloth 240 on the surface to be cleaned, so that the cleaning efficiency of the cleaning assembly 200 is improved.
Example III
As shown in fig. 13, the present embodiment is different from the above embodiment in that the first supporting portion 233 and the second supporting portion 234 are provided at both ends of the driving roller 210, respectively, and the third supporting portion 235 and the fourth supporting portion 236 are provided at both ends of the driven roller 220, respectively. Wherein the first support 233 and the fourth support 236 are respectively disposed at the same end of the driving roller 210 and the driven roller 220 and are disposed near the driving assembly. The width L1 of the first support portion 233 is smaller than the width L4 of the fourth support portion so that the rotational length of the driving roller 210 is longer than the rotational length of the driven roller 220.
Further, the second supporting portion 234 and the third supporting portion 235 are respectively disposed at one ends of the driving roller 210 and the driven roller 220 away from the driving assembly. Optionally, the second support 234 and the third support 235 are disposed opposite each other in the axial direction of the cleaning assembly 200, and the second support 234 and the third support 235 have the same width. Alternatively, as shown in fig. 14, the second support 234 and the third support the width L2 of the second support 234 is smaller than the width L4 of the third support. Such that the projection of the drive roller 210 onto the axis of the cleaning assembly 200 covers the projection of the driven roller 220 onto the axis of the cleaning assembly 200.

Claims (10)

1. The utility model provides a install the cleaning element on surface cleaning device, cleaning element detachable installs and is used for wiping the surface that waits to clean on the scrubbing brush, and cleaning element includes parallel arrangement's drive roll and driven voller, support frame and the outside cleaning cloth of cover locating drive roll and driven voller, the support frame includes first mounting bracket and second mounting bracket, first mounting bracket includes first supporting part and the second supporting part of setting relatively along drive roll axial, the second mounting bracket includes the third supporting part and the fourth supporting part of setting relatively along driven voller axial, its characterized in that, the length of rotation of drive roll is greater than the length of rotation of driven voller, just the projection of drive roll on cleaning element axis covers the projection of driven voller on cleaning element axis.
2. The cleaning assembly of claim 1, wherein the drive roller comprises a drive section and a transmission section coaxially disposed, the first support portion is disposed between the drive section and the transmission section, and the first support portion is at least partially provided with a driven roller at a position corresponding to a rotation direction of the cleaning cloth.
3. The cleaning assembly of claim 1, wherein the first mount and the second mount are at least partially offset in an axial direction of the cleaning assembly.
4. A cleaning assembly according to claim 3, wherein the first support portion is provided at an end of the drive roller, the fourth support portion is provided at an end of the driven roller corresponding to the first support portion, and the first support portion and the fourth support portion are at least partially offset in an axial direction of the cleaning assembly.
5. A cleaning assembly according to claim 3, wherein the support frame further comprises a side plate, a third support part rotatably connected to the driven roller and a second support part rotatably connected to the driving roller are provided on the side plate, and a width L2 of the second support part in the cleaning assembly direction is smaller than or equal to a width L3 of the third support part in the cleaning assembly direction.
6. The cleaning assembly of claim 1, wherein the first support portion has a diameter equal to or less than the drive roller.
7. The cleaning assembly of claim 2, wherein the drive section length is less than the drive section length.
8. The cleaning assembly of claim 2, wherein the first support portion has a connection portion therein, one end of the connection portion being connected to the drive section and the other end being connected to the transmission section.
9. The cleaning assembly of claim 5, wherein at least one of the second support and the third support has a diameter less than a diameter of a coaxially disposed drive or driven roller.
10. The cleaning assembly of any one of claims 1-9, wherein the support frame is provided with second ribs extending in a direction of rotation of the cleaning cloth, the second ribs abutting the cleaning cloth.
CN202320213843.4U 2023-02-13 2023-02-13 Cleaning assembly mounted on surface cleaning device Active CN219629536U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320213843.4U CN219629536U (en) 2023-02-13 2023-02-13 Cleaning assembly mounted on surface cleaning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320213843.4U CN219629536U (en) 2023-02-13 2023-02-13 Cleaning assembly mounted on surface cleaning device

Publications (1)

Publication Number Publication Date
CN219629536U true CN219629536U (en) 2023-09-05

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Family Applications (1)

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CN (1) CN219629536U (en)

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