A multi-sided contact cleaning drum mechanism and cleaning appliance

Abstract

The present application is suitable for the technical field of cleaning equipment. The present application discloses a multi-surface contact cleaning roller mechanism, a cleaning appliance and a cleaning appliance, wherein the multi-surface contact cleaning roller mechanism and the cleaning appliance comprise a cleaning roller, a contact water squeezing strip and a water guiding strip forming a cleaning surface with the surface of the cleaning roller, characterized in that the cleaning roller mechanism further comprises a first pressing plate forming a first contact surface with the surface of the cleaning roller and a second pressing plate forming a second contact surface. Since the surface of the cleaning roller forms at least two contact surfaces during work, and the contact surface of the cleaning surface of the cleaning roller is located within the angle formed by the two first pressing plates and the second pressing plate and the shaft center, the vertical force of the rotating shaft can be increased when the surface of the cleaning roller is unevenly stressed during work, the rotating shaft load is excessively large, the radial stress is more uniform, and the vibration of the cleaning roller deviating from the shaft center during high-speed rotation is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning machines, in particular to a multi-surface contact cleaning roller mechanism and a cleaning appliance. BACKGROUND

[0002] With the progress of science and technology, people's requirements for floor cleaning tools have gradually increased. A new cleaning mechanism has emerged, which uses a cleaning rod to adsorb dust on the cleaning surface, and then uses water to wash the cleaning rod to remove dust from the cleaning rod. This mechanism is called "water dust circulation". Cleaning appliances using this mechanism are also called "water dust circulation" scrubbers. The water dust circulation scrubber drives the cleaning cylinder to wipe the floor through the operation of the motor. The cleaning cylinder usually adopts a sponge cylinder structure, and the floor cleaning appliance is also equipped with a water supply system to clean the cleaning cylinder, thereby perfectly achieving the cleaning of the floor. In order to clean the cleaning cylinder, a closed cleaning space is usually provided to clean the local roller, and clean water is provided to clean the cleaning cylinder, and then the sewage after cleaning the cleaning cylinder is pumped away.

[0003] Chinese patent document CN212698746U discloses a water pressure plate assembly for a cleaning tool, a cleaning head, and a cleaning tool. The water pressure plate assembly includes a water pressure plate including a transparent window, and a scraping strip connected to the water pressure plate. However, the arc-shaped working strip on the water pressure plate and the drainage part of the scraping strip are in interference fit with the cleaning roller on the same side of the two points, and even if the force direction is perpendicular to the tangent direction of the cleaning roller, it points to the axis, but the force on the same side from the force angle is easy to cause the cleaning roller to vibrate away from the axis during high-speed rotation, which is easy to produce noise and cause large wear to the rotating ends of the two ends of the cleaning roller. SUMMARY

[0004] The technical problem solved by the present application is to provide a multi-surface contact cleaning roller mechanism and a cleaning appliance, wherein the multi-surface contact cleaning roller mechanism allows the cleaning roller to be subjected to more uniform radial force, reducing the vibration of the cleaning roller away from the axis during high-speed rotation.

[0005] To solve the above problems, the present application provides a multi-surface contact cleaning roller mechanism, which includes a cleaning roller and a water extrusion strip and a water guide strip forming a cleaning surface with the surface of the cleaning roller. The cleaning roller mechanism further includes a first pressing plate forming a first contact surface with the surface of the cleaning roller and a second pressing plate forming a second contact surface.

[0006] Further, the first pressing plate is located outside the water extrusion strip, and the second pressing plate is located between the water guide strip and the surface of the cleaning roller.

[0007] Further, the first pressing plate and the second pressing plate each include an elastic rubber.

[0008] Further, the first and second pressing plates are arc-shaped in cross section along the width direction.

[0009] Further, the first pressing plate is movably connected with the water squeezing strip.

[0010] Further, the water squeezing strip is provided with a fixing groove, and the first pressing plate is provided with a fixing strip matched with the fixing groove.

[0011] Further, the second pressing plate is provided with a variable chamber between the water guiding strip and the second pressing plate.

[0012] Further, the variable chamber is a sealed structure.

[0013] Further, the second pressing plate is provided with an extension part extending outward beyond the water guiding strip along the surface arc of the cleaning roller.

[0014] Further, the extension part is triangular in cross section along the width direction.

[0015] Further, the first and second pressing plates respectively form an angle with the contact point and the axis center of the cleaning roller surface, and the angle is 60-180 degrees.

[0016] Further, the multi-surface contact cleaning roller mechanism further comprises a third pressing plate in interference fit with the surface of the cleaning roller, and the third pressing plate and the first pressing plate respectively form an angle with the contact point and the axis center of the surface of the cleaning roller, and the angle is not less than 120 degrees.

[0017] Further, the third pressing plate is made of an elastically deformable material.

[0018] Further, the third pressing plate is arc-shaped in cross section along the width direction, and the third pressing plate is provided with a plurality of spaced support ribs along the axial direction of the cleaning roller.

[0019] Further, the support ribs are in contact with the cleaning roller along the circumferential direction of the cleaning roller.

[0020] The present application provides a cleaning device, comprising a cleaning head provided with a shell, the cleaning head being provided with a multi-surface contact cleaning roller mechanism, the multi-surface contact cleaning roller mechanism comprising a cleaning roller and a contact water squeezing strip and a water guiding strip forming a cleaning surface with the surface of the cleaning roller, and the cleaning roller mechanism further comprising a first pressing plate forming a first contact surface and a second pressing plate forming a second contact surface with the surface of the cleaning roller.

[0021] Further, the first pressing plate is located outside the water squeezing strip, and the second pressing plate is located between the water guiding strip and the surface of the cleaning roller.

[0022] Further, the first and second pressing plates are respectively made of elastic rubber.

[0023] Further, the first and second pressing plates are respectively arc-shaped in the width direction cross section.

[0024] Further, the first pressing plate is movably connected with the water squeezing strip.

[0025] Further, the water squeezing strip is provided with a fixing groove, and the first pressing plate is provided with a fixing strip matched with the fixing groove.

[0026] Further, the second pressing plate is provided with a variable cavity in connection with the water guiding strip.

[0027] Further, the variable cavity is of a sealed structure.

[0028] Further, the extension part of the second pressing plate extends outward beyond the water guiding strip along the surface arc of the cleaning roller.

[0029] Further, the extension part is triangular in the width direction cross section.

[0030] Further, the first pressing plate is provided with a variable gap in connection with the shell.

[0031] Further, the first and second pressing plates respectively form an angle with the contact point and the axis center directed to the axis center formed by the surface of the cleaning roller, and the angle is 60-180 degrees.

[0032] Further, the multi-surface contact cleaning roller mechanism further comprises a third pressing plate in interference connection with the surface of the cleaning roller, and the third pressing plate and the first pressing plate respectively form an angle with the contact point and the axis center directed to the axis center formed by the surface of the cleaning roller, and the angle is not less than 120 degrees.

[0033] Further, the first pressing plate is provided with a variable gap in connection with the shell.

[0034] The multi-surface contact cleaning roller mechanism and the cleaning device, wherein the multi-surface contact cleaning roller mechanism comprises a cleaning roller and a contact water squeezing strip and a water guiding strip forming a cleaning surface with the surface of the cleaning roller, and the cleaning roller mechanism further comprises a first pressing plate forming a first contact surface in contact with the surface of the cleaning roller and a second pressing plate forming a second contact surface. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art based on these drawings without creative efforts should also fall within the scope of the present application.

[0036] Figure 1 Figure 1 is a schematic diagram of a cross-sectional structure of a first embodiment of a multi-surface contact cleaning roller mechanism in a vertical direction along a rotation axis of the cleaning roller.

[0037] Figure 2 Figure 2 is a schematic diagram of an enlarged partial structure of the multi-surface contact cleaning roller mechanism.

[0038] Figure 3 Figure 3 is a schematic diagram of a cross-sectional structure of a second embodiment of the multi-surface contact cleaning roller mechanism in the vertical direction along the rotation axis of the cleaning roller. Figure 1

[0039] Figure 4 is a schematic diagram of a cross-sectional structure of a third embodiment of the multi-surface contact cleaning roller mechanism in the vertical direction along the rotation axis of the cleaning roller. Figure 4

[0040] Figure 5 Figure 5 is a schematic diagram of a cross-sectional structure of a fourth embodiment of the multi-surface contact cleaning roller mechanism in the vertical direction along the rotation axis of the cleaning roller.

[0041] Reference signs:

[0042] Cleaning roller 1, first pressing plate 2, variable chamber 23 of the first pressing plate, water guide strip assembly 3, second pressing plate 31, water guide strip 32, variable chamber 33, water squeezing strip 4, cleaning roller cover plate 5, third pressing plate 6, cleaning brush 7, and shell 8.

[0043] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION

[0044] The claims of the present application will be further described in detail below in combination with specific embodiments and drawings. Obviously, the described embodiments only represent some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts should also fall within the scope of the present application.

[0045] ​It should be understood that, in the embodiments of the present application, all directional terms such as "upper", "lower", "left", "right", "front", "back", etc. indicating the position or positional relationship shown in the drawings or the position or positional relationship usually placed when the product of the present application is used, are only for the convenience of simplifying the description of the present application, and do not mean or imply that the device, element or component must have a specific orientation and specific orientation structure, and should not be understood as a limitation on the present application. It is only used to explain the relative positional relationship, movement condition, etc. between the components shown in the drawings, and when the specific attitude changes, the directional indication may also change accordingly.

[0046] In addition, in the present application, the ordinal numbers such as "first", "second", etc. are only for distinguishing purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the "first" and "second" features can be explicitly or implicitly and at least one of the technical features. In the description of the present application, the meaning of "a plurality of" is at least two, that is, two or more, unless otherwise explicitly limited; the meaning of "at least one" is one or more.

[0047] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screwed", etc. should be understood broadly, for example, the positional relationship between the components can be relatively fixed, or there can be a physically fixed connection between the components, which can be detachable or integrated structure; it can be mechanical connection or electrical signal connection; it can be directly connected or indirectly connected through intermediate media or components; it can be the internal communication of two elements or the interaction relationship between two elements, unless the specification explicitly limits it, and it cannot be understood as other understanding that can achieve the corresponding function or effect, and for those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0048] If the controller and control circuit involved in the present application are the conventional control technology or unit of those skilled in the art, the control circuit of the controller can be realized by the ordinary skilled in the art using existing technology, such as simple programming. The software or program involved in the control result realized by cooperating with the hardware, such as the control process of the software or program not described in detail in the specification, belongs to the use of existing technology or the conventional technology of the ordinary skilled in the art. The power supply also uses the existing technology in the art, and the main technical point of the present application is the improvement of the mechanical device, so the specific circuit control relationship and circuit connection of the present application are not described in detail.

[0049] The disclosure of the present application provides many different embodiments or examples for implementing different structures of the present application. For simplicity of the disclosure, the present application's components and settings may be described with reference to particular examples. Of course, they are merely examples and are presented to provide a clear and thorough understanding of the present application. Moreover, the present application can repeat the reference numbers and / or the reference letters in different examples, and such repetition is for the purpose of simplicity and clarity and does not indicate the relationship between the various embodiments and / or the settings discussed. Furthermore, the present application provides various specific examples of processes and materials, but one of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0050] The preferred embodiments of the present application will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are merely for the purpose of illustration and explanation and are not intended to limit the present application.

[0051] The scheme of the present application will be described in detail below in conjunction with the accompanying drawings. Embodiment

[0052] As shown in Figures 1-3 The present application provides a multi-surface contact cleaning roller mechanism, which comprises a cleaning roller 1, a water squeezing strip 4 and a water guiding strip 32 forming a washing surface with the surface of the cleaning roller 1. The cleaning roller mechanism further comprises a first pressing plate 2 forming a first contact surface and located outside the water squeezing strip 4, and a second pressing plate 31 forming a second contact surface and located between the water guiding strip 32 and the surface of the cleaning roller 1.

[0053] To facilitate the connection and fixation between the first pressing plate 2 and the water squeezing strip 4, at least one fixing groove is provided on the water squeezing strip 4, and correspondingly, at least one fixing strip is provided on the first pressing plate 2 to match the fixing groove. When assembled, the fixing strip is placed in the fixing groove to achieve the movable connection between the first pressing plate 2 and the water squeezing strip 4.

[0054] In order to give the first pressing plate 2 greater resilience and deformation space, a plurality of first pressing plate variable cavities 23 are formed between the first pressing plate 2 and the cleaning roller cover plate 5 by elastic pressing strips 21. In order to achieve better resilience, the elastic pressing strips are vertically distributed in a horizontal plane with the ground as the horizontal line. The design of the elastic pressing strips 21 allows the first pressing plate 2 to have greater deformation space, while reducing the stress on the cleaning roller 1. When external force is transmitted to the wringing strip 4 through the roller cover plate 5, the external force on the wringing strip 4 can be effectively dispersed due to the design of the elastic pressing strips, so as not to affect the normal work of the cleaning roller 1. When the cleaning appliance is in use, the first pressing plate 2 contacts the surface of the cleaning roller after being pressed by the wringing strip 4. During the process of the surface of the cleaning roller after being pressed returning to the free state under the action of the elastic material of the cleaning roller, the structure of the first pressing plate variable cavity 23 of the first pressing plate 2 just “absorbs” the impact of the surface of the cleaning roller on the cleaning roller cover plate 5. In this embodiment, there is a small height difference or close to flush between the first pressing plate and the wringing strip. During the process of the surface of the cleaning roller after being pressed returning to the free state under the action of the elastic material of the cleaning roller, it can be smoothly over, and the process of “absorbing” the impact of the surface of the cleaning roller on the cleaning roller cover plate 5 also does not produce noise.

[0055] In this embodiment, the second pressing plate 31 and the water guide strip 32 are integrally formed, the water guide strip is arranged at one end away from the cleaning roller, and the second pressing plate is arranged on the opposite end face and in contact with the surface of the cleaning roller. In order to provide a certain buffer force after the second pressing plate is stressed, at least one variable cavity 33 with a sealing structure is arranged between the second pressing plate and the water guide strip. According to the design of the present application, the variable cavity 33 is two, respectively distributed on both ends of the second pressing plate. In order to make the second pressing plate have a larger contact surface with the surface of the cleaning roller, the extension of the second pressing plate on both sides extends outward along the arc of the surface of the cleaning roller and beyond the water guide strip. This structure design makes the width of the water guide strip 3 smaller than the width of the second pressing plate 5.

[0056] As shown in Figure 3 In order to make the end of the entire water guide strip assembly 3 pointing to the wringing strip can “hold” more water, the extension of the end of the second pressing plate pointing to the wringing strip is triangular in cross section along the width direction, so that the sewage squeezed out by the wringing strip can be smoothly discharged from the cleaning roller under the guidance of the water guide strip assembly. In order to make the cleaning brush 7 not impact too much on the other end of the water guide strip assembly (the end of the second pressing plate away from the wringing strip) after sliding friction relative to the surface of the cleaning roller, the extension of the end of the second pressing plate away from the wringing strip is triangular in cross section along the width direction, so that the brush tip of the cleaning brush 7 can smoothly run along the corresponding arc of the upper surface of the shell and the cleaning brush after passing through the “wedge shape”, reducing the impact on the end of the second pressing plate away from the wringing strip which is not “wedge shaped”, and reducing the noise generated during the operation of the cleaning brush 7.

[0057] As a variant design of the present scheme, the single-layer sealing structure's variable chamber 33 is two or more, evenly distributed on the contact surface of the second pressing plate 31 and the water guide strip 32 integrally formed, this design is to make the second pressing plate and the cleaning roller surface have a larger contact surface, at the same time, the second pressing plate 31 and the water guide strip 32 integrally formed contact surface has more variable chambers 33 which can further "absorb" the impact of the cleaning roller surface on the second pressing plate 31 in actual use. As a variant design of the present scheme, a plurality of variable chambers 33 of the multilayer sealing structure are provided between the second pressing plate and the water guide strip, so that the contact surface of the second pressing plate 31 and the water guide strip 32 integrally formed has more radially distributed multilayer variable chambers 33, which can further "absorb" the impact of the cleaning roller surface on the second pressing plate 31 in actual use.

[0058] In this embodiment, the first pressing plate and the second pressing plate are in contact with the surface of the cleaning roller, and the surface of the cleaning roller is made of an elastic deformable material. In order to prevent hard materials from damaging the surface of the cleaning roller, the first pressing plate and the second pressing plate are made of an elastic deformable material, such as elastic rubber. In order to avoid the vertical force of the rotating shaft increasing when the surface of the cleaning roller is unevenly stressed during operation, causing excessive load on the rotating shaft, the radial force is more uniform, and the vibration of the cleaning roller deviating from the shaft center during high-speed rotation is reduced, the first pressing plate and the second pressing plate are respectively arc-shaped along the width direction cross section. This arc-shaped design can effectively make the first pressing plate and the second pressing plate fit more closely with the cleaning roller, and form two contacts in the circumferential direction of the cleaning roller, effectively dispersing the radial force generated between the cleaning roller and the cleaning surface during cleaning, making the rotating shaft of the cleaning roller evenly stressed in the circumferential direction, thereby avoiding the vibration of the cleaning roller deviating from the shaft center during high-speed rotation.

[0059] In order to further avoid the vertical force of the rotating shaft increasing when the surface of the cleaning roller is unevenly stressed, causing excessive load on the rotating shaft, and reducing the vibration of the cleaning roller deviating from the shaft center during high-speed rotation, the cleaning roller mechanism further comprises a third pressing plate 6 in interference fit with the surface of the cleaning roller 1. The third pressing plate 6 is in contact with the surface of the cleaning roller, and the surface of the cleaning roller is made of an elastic deformable material. In order to prevent hard materials from damaging the surface of the cleaning roller, the third pressing plate is made of an elastic deformable material. In this scheme, the material of the third pressing plate is preferably elastic rubber. In order to make the third pressing plate fit more closely with the surface of the cleaning roller, the third pressing plate is arc-shaped along the width direction cross section. The third pressing plate is provided with a plurality of spaced arc-shaped support ribs (not shown in the figure) along the axial direction of the cleaning roller. The support ribs are arranged in the circumferential direction of the cleaning roller, and the support ribs are arranged in the circumferential direction of the cleaning roller. Figure 1The cross-section shown is in the form of an arc that fits the cleaning roller in the circumferential direction. In this embodiment, the three contact surfaces are formed by the effective cooperation of the first pressing plate, the second pressing plate and the third pressing plate in the circumferential direction, effectively dispersing the radial force generated between the cleaning roller and the cleaning surface during cleaning, making the cleaning roller shaft more uniform in the circumferential direction, thereby avoiding the vibration of the cleaning roller deviating from the shaft center during high-speed rotation.

[0060] As shown in Figure 2 The first pressing plate and the second pressing plate form an angle a with the midpoint of the surface contact pointing to the shaft center and the shaft center, respectively, and the angle is 60-180 degrees. When the first pressing plate and the second pressing plate completely "enclose" the cleaning roller, the first pressing plate and the second pressing plate form an angle of 180 degrees with the midpoint of the surface contact pointing to the shaft center and the shaft center, respectively. When the total arc length of the first pressing plate and the second pressing plate contacting the surface of the cleaning roller is only 1 / 3 of the total arc length of the entire cleaning roller cross section at this moment, and ignoring the gap between the arc line of the first pressing plate contacting the cleaning roller and the arc line of the second pressing plate contacting the cleaning roller, the first pressing plate and the second pressing plate form an angle of 60 degrees with the midpoint of the surface contact pointing to the shaft center and the shaft center, respectively. When the first pressing plate and the second pressing plate form an angle of less than 60 degrees with the midpoint of the surface contact pointing to the shaft center and the shaft center, respectively, that is, when the total arc length of the first pressing plate and the second pressing plate contacting the surface of the cleaning roller is less than 1 / 3 of the total arc length of the entire cleaning roller cross section at this moment, and ignoring the gap between the arc line of the first pressing plate contacting the cleaning roller and the arc line of the second pressing plate contacting the cleaning roller, the "enclosing" effect of the first pressing plate and the second pressing plate on the cleaning roller is not obvious, and more "single surface top brake" effect is shown, losing the function of further stabilizing the cleaning roller operation and reducing radial jumping. It is recommended to adopt the scheme that the first pressing plate and the second pressing plate form an angle of 60-180 degrees with the midpoint of the surface contact pointing to the shaft center and the shaft center, respectively.

[0061] The third pressing plate and the first pressing plate form an angle b with the contact point and the center of the cleaning roller surface, respectively, and the angle is not less than 120 degrees. When the first pressing plate and the third pressing plate completely "face and embrace" the cleaning roller, the first pressing plate and the second pressing plate form an angle of 180 degrees with the contact point and the center of the cleaning roller surface, respectively. In order to match the cleaning brush 7 to brush off the solid pressure and sticky garbage adhered to the surface of the cleaning roller, a gap must be left between the contact surface of the second pressing plate and the contact surface of the third pressing plate, so that the cleaning brush 7 can brush the surface of the cleaning roller in the gap. The gap surface of the cleaning roller accounts for about 1 / 6 of the entire cleaning roller surface, and the contact surface of the third pressing plate accounts for about 1 / 6 of the entire cleaning roller surface. Therefore, the angle formed by the contact point and the center of the cleaning roller surface by the third pressing plate and the first pressing plate is not less than 120 degrees.

[0062] With the ground C as the reference, the vertical line D passing through the center of the cleaning roller is located on the left side of the movable connection point of the extrusion strip and the first pressing plate (the left side is the end away from the second pressing plate, and the right side is the end close to the second pressing plate). The resultant force of the first pressing plate and the second pressing plate acting on the surface of the cleaning roller is left downward and right downward, respectively. Combined with the vertical upward force of the ground acting on the surface of the cleaning roller during the operation of the cleaner, and the possible left upward force of the third pressing plate acting on the surface of the cleaning roller, this structure design can make the resultant force of all external forces acting on the surface of the cleaning roller tend to zero, which helps to reduce the uneven stress in the radial direction of the cleaning roller, and is beneficial to reduce the radial vibration of the cleaning roller and the noise generated thereby.

[0063] In this scheme, by increasing the possible new force points directed to the center of the contact point, and the angle between the new force points directed to the center of the shaft is between 60 degrees and 180 degrees, and the force points are not less than 3. In this way, it is possible to make the resultant force of each force point directed to the center of the shaft tend to zero, which helps to reduce the uneven stress in the radial direction of the cleaning roller, and is beneficial to reduce the radial vibration of the cleaning roller and the noise generated thereby.

[0064] Large areas of elastic rubber are used before and after the first and second pressure plates to slightly interfere with the cleaning roller. The entire garbage channel formed by the third pressure plate and the corresponding surface of the cleaning roller also has slightly interfered with the cleaning roller through the axially spaced arc-shaped support ribs. This gives the cleaning roller multiple spaced support lines formed by the arc surface corresponding to the first pressure plate, the arc surface corresponding to the second pressure plate, and the third pressure plate. The three together form a ring-shaped three-dimensional support system. Ultimately, all forces supporting the cleaning roller point towards the axis, and the resultant force of all forces tends to zero. This helps to reduce the uneven radial force on the cleaning roller, which is beneficial to reducing the radial vibration of the cleaning roller and the resulting noise. Meanwhile, the entire arc surface corresponding to the first pressure plate and the entire arc surface corresponding to the second pressure plate on the cleaning roller, due to their constant interference fit with the cleaning roller, will reduce the noise generated during the deformation process of the cleaning roller from a free state to a compressed state and from a compressed state to a free state. At the same time, the arc-shaped guide surface corresponding to the third pressure plate and the cleaning roller, due to the fact that only multiple arc-shaped support ribs are set, can still form a waste guiding channel between the arc-shaped support ribs, thus maintaining the permeability of the waste guiding channel of the third pressure plate relative to the cleaning roller, while also providing sufficient support for the cleaning roller. Example

[0065] like Figure 4 As shown, this embodiment differs from Embodiment 1 in that the first pressure plate 2 and the dewatering strip 4 are detachably connected. This connection is primarily achieved using screws. However, this embodiment does not limit the connection method; any method that enables a detachable connection in this field can be used as an alternative. To ensure a seamless connection between the guide baffle and the dewatering strip, the first pressure plate 2 and the dewatering strip 4 are connected by adhesive bonding. These two connection methods achieve a seamless connection between the first pressure plate 2 and the dewatering strip 4, while also ensuring a small height difference or near-flush between them.

[0066] Compared with Embodiment 1, another difference in this embodiment is that there is no elastic pressure strip 21 structure design in this embodiment. However, the interior of the first pressure plate 2 can still be designed as a first pressure plate variable cavity 23 structure. The other end of the first pressure plate 2 away from the water squeezing strip 4 is free to abut against the cleaning roller cover plate 5, or a protrusion can be provided at the end of the end face. The protrusion abuts against the cleaning roller cover plate 5. When the cleaning roller cover plate 5 is deformed by external force, the protrusion structure design can achieve a certain buffering effect, thereby reducing the force between the first pressure plate 2 and the cleaning roller and ensuring the normal operation of the cleaning roller.

[0067] Similarly, the cleaning roller cover plate 5 abuts against the protruding part of the first pressing plate 2, giving the first pressing plate 2 a larger space for movement and deformation, and other structures are the same as those in Embodiment 1, which will not be repeated here.

[0068] As a variant design of the present scheme, the other end of the first pressing plate 2 away from the water squeezing strip 4 is free to be connected with the cleaning roller cover plate 5 (not labeled in the figure), and when the cleaning roller cover plate 5 is deformed by external force, the connecting structure design can achieve a certain buffering effect, thereby reducing the force between the first pressing plate 2 and the cleaning roller, and ensuring the normal work of the cleaning roller.

[0069] The above design can also meet the following requirements: when the cleaner is in use, the first pressing plate 2 contacts the surface of the cleaning roller after being squeezed by the water squeezing strip 4, and the first pressing plate variable cavity 23 structure of the first pressing plate 2 just "absorbs" the impact of the cleaning roller surface on the cleaning roller cover plate 5 during the process of the squeezed cleaning roller surface recovering to the free state under the action of the cleaning roller elastic material. Because there is a small height difference or close to flush between the first pressing plate and the water squeezing strip in the present embodiment, the process of "absorbing" the impact of the cleaning roller surface on the cleaning roller cover plate 5 during the process of the squeezed cleaning roller surface recovering to the free state under the action of the cleaning roller elastic material can be smoothly over, and the process of "absorbing" the impact of the cleaning roller surface on the cleaning roller cover plate 5 will not produce noise. Embodiment

[0070] As Figure 5 shown, the difference between this embodiment and Embodiments 1 and 2 is that the first pressing plate 2 includes a limiting part 21, which is a protruding structure. In the present scheme, the end face of the protruding structure is arc-shaped, and the arc-shaped protruding end face of the limiting part 21 abuts against the cleaning roller cover plate 5. In the present embodiment, the arc-shaped protruding end face of the limiting part 21 abuts against the middle part of the cleaning roller cover plate 5, and the end face of the water squeezing part (not labeled in the figure) of the water squeezing strip 4 is flush with and smoothly connected to the first pressing plate 2.

[0071] In order to achieve the effect of flush end face, one end of the first pressing plate 2 and the water squeezing part of the water squeezing strip 4 is a fixed part 22, and the other end is a free end. The end face of the free end contacting the surface of the cleaning roller forms a certain angle with the end face extending from the fixed groove, which is preferably an acute angle in the present scheme. Correspondingly, a flush end (not labeled in the figure) is provided on the first pressing plate 2. When the fixed part 22 is clamped into the fixed groove (not labeled in the figure) of the water squeezing part of the water squeezing strip 4, the flush end just connects with the angle, thereby achieving smooth connection of the first pressing plate 2 and the water squeezing strip 3.

[0072] The first pressing plate 2 contacts the surface of the cleaning roller after being pressed by the water squeezing strip 4 during use of the cleaning appliance. The first pressing plate variable cavity 23 structure of the first pressing plate 2 just “absorbs” the impact of the surface of the cleaning roller on the cleaning roller cover plate 5 during the process that the surface of the cleaning roller after being pressed restores to the free state under the action of the elastic material of the cleaning roller. Because there is a small height difference or close to flush between the first pressing plate and the water squeezing strip in the embodiment, the surface of the cleaning roller after being pressed can be smoothly overdriven during the process that the surface of the cleaning roller restores to the free state under the action of the elastic material of the cleaning roller, and the process of “absorbing” the impact of the surface of the cleaning roller on the cleaning roller cover plate 5 also does not produce noise.

[0073] The application also provides a cleaning appliance embodiment.

[0074] As shown in Figure 1 , Figure 4 , Figure 5 The application provides a cleaning appliance, which comprises a cleaning head provided with a shell 8, and the cleaning head is provided with the above-mentioned multi-surface contact cleaning roller mechanism.

[0075] In the cleaning appliance, the shell 8 is provided with the cleaning roller cover plate 5, one end of the first pressing plate 2 is clamped or abutted with the cleaning roller cover plate 5, the other end of the first pressing plate 2 is detachably connected with the water squeezing strip fixedly installed on the cleaning roller cover plate 5, the water guide strip assembly 3 is fixedly connected with the shell 8, the third pressing plate 6 is fixedly connected with the shell 8, and a variable gap is arranged between the first pressing plate and the shell.

[0076] The corresponding arc surface of the first pressing plate on the cleaning roller, the corresponding arc surface of the second pressing plate on the cleaning roller, and the plurality of spaced support lines formed by the third pressing plate on the cleaning roller form a ring-shaped three-dimensional support system as a whole, and finally all the forces supporting the cleaning roller are directed to the center of the cleaning roller. The multi-surface contact cleaning roller mechanism with “multi-surface encirclement” can “absorb” the impact on the cleaning roller generated during actual use of the cleaning appliance, reduce the radial jumping of the cleaning roller, thereby reducing the “vibration feeling” felt by the user through the push rod of the cleaning appliance during use, and thus improving the user experience.

[0077] According to the embodiment of the present application, during the working process of the cleaning device, the cleaning roller 1 rotates, garbage is rolled up by the cleaning roller, and at the same time, clean water is delivered to the surface of the cleaning roller to flush the cleaning roller. The upper part of the shell 8 is provided with a water guide strip assembly 3, the water guide strip assembly 3 is in interference fit with the cleaning roller, and the sewage squeezed out by the water guide strip and the clean water delivered to the cleaning roller are mixed together and carried away by the water flow. A large area of elastic rubber is used on the first pressing plate and the second pressing plate to slightly interfere with the cleaning roller. The arc-shaped support ribs on the third pressing plate are also slightly interfered with the cleaning roller. Thus, the first pressing plate, the second pressing plate and the third pressing plate on the cleaning roller form a ring-shaped three-dimensional support system, and the forces of all the supports on the cleaning roller are directed to the shaft center, and the resultant force of all the forces tends to zero, which helps to reduce the uneven stress of the cleaning roller in the radial direction and the radial vibration and noise generated thereby. The cleaning device can be a dust collector, a floor washing machine or a floor sweeping robot.

[0078] Since the surface of the cleaning roller forms at least two contact surfaces during the working process of the cleaning roller, the cleaning roller can effectively disperse in the circumferential direction of the shaft, and the uneven stress on the circumferential surface of the cleaning roller during the working process of the cleaning roller can be avoided, so that the load of the shaft is not too large, the dynamic balance of the cleaning roller during the working process of the cleaning roller is not affected, and the vibration of the cleaning roller deviating from the shaft center during high-speed rotation is avoided.

[0079] The above describes the embodiments of the present application in detail, and the principles and implementation modes of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the method of the present application and its core idea. Meanwhile, the changes or deformations made by the person skilled in the art according to the idea of the present application, based on the specific implementation modes and application scope of the present application, all belong to the scope of protection of the present application. In summary, the content of the present application should not be understood as a limitation of the present application.

Claims

1. A multi-faceted contact cleaning drum mechanism for use in a cleaning appliance, characterized in that , comprising: a cleaning roller, a top surface of which is covered with a cleaning roller cover plate; a water squeezing strip and a water guiding strip, which are in contact with a cleaning surface of the cleaning roller; a first pressing plate, which is located outside the water squeezing strip and has its entire lower surface in contact with the cleaning surface of the cleaning roller to form a first contact surface, the first pressing plate is movably connected with the water squeezing strip, and a plurality of variable cavities of the first pressing plate are formed by elastic pressing strips between the first pressing plate and the cleaning roller cover plate, the elastic pressing strips are vertically and spacedly distributed in a horizontal plane, the elastic pressing strips allow the first pressing plate to have a larger deformation space and simultaneously reduce the force received by the cleaning roller at the first contact surface; during the process in which the surface of the cleaning roller after being squeezed returns to a free state under the action of the elastic material of the cleaning roller, the variable cavities of the first pressing plate accommodate the impact of the surface of the cleaning roller on the cleaning roller cover plate; a second pressing plate, which is located between the water guiding strip and the cleaning surface of the cleaning roller and is in contact with the cleaning surface of the cleaning roller to form a second contact surface; a third pressing plate, which is in interference fit with the cleaning surface of the cleaning roller; the first pressing plate, the second pressing plate and the third pressing plate effectively form three contact surfaces in the circumferential direction; the corresponding arc surface of the first pressing plate on the cleaning roller, the corresponding arc surface of the second pressing plate on the cleaning roller and the plurality of spaced support lines formed by the third pressing plate on the cleaning roller all direct the force for supporting the cleaning roller to the shaft center, and the resultant force of the forces directed to the shaft center tends to zero.

2. The multi-faceted contact cleaning drum mechanism of claim 1, wherein, The first pressing plate and the second pressing plate each comprise elastic rubber, and the contact surface of the cleaning surface is located within the angle formed by the first pressing plate, the second pressing plate and the shaft center.

3. The multi-faceted contact cleaning drum mechanism of claim 1, wherein, The first pressing plate and the second pressing plate each have an arc shape in the width direction cross section.

4. The multi-faceted contact cleaning drum mechanism of claim 1, wherein, The second pressing plate is provided with a variable cavity between the water guiding strip.

5. The multi-faceted contact cleaning drum mechanism of claim 1, wherein, The water squeezing strip is provided with a fixed groove, and at least one fixed strip matched with the fixed groove is arranged on the first pressing plate, the fixed strip is arranged in the fixed groove, and thus the movable connection between the first pressing plate and the water squeezing strip is realized.

6. The multi-faceted contact cleaning drum mechanism of claim 1, wherein, In use, the variable cavities of the first pressing plate support the contact between the first pressing plate and the surface of the cleaning roller after being squeezed by the water squeezing strip.

7. The multi-faceted contact cleaning drum mechanism of claim 4, wherein, The variable cavity is a sealed structure.

8. The multi-faceted contact cleaning drum mechanism of claim 1, wherein, The extension parts of the second pressing plate extend outward beyond the water guiding strip along the arc of the cleaning surface on the upper side and the lower side of the second pressing plate.

9. The multi-faceted contact cleaning drum mechanism of claim 8, wherein, The extension part has a triangular shape in the width direction cross section.

10. The multi-faceted contact cleaning roller mechanism of claim 1, wherein, The first pressing plate and the second pressing plate each form an included angle with the contact point directed to the shaft center and the shaft center formed by the cleaning surface, and the included angle is 60-180 degrees.

11. The multi-faceted contact cleaning drum mechanism of claim 1, wherein, The third pressing plate and the first pressing plate each form an included angle with the contact point directed to the shaft center and the shaft center formed by the cleaning surface, and the included angle is not less than 120 degrees.

12. The multi-faceted contact cleaning drum mechanism of claim 10, wherein, The third pressing plate is made of an elastically deformable material.

13. The multi-faceted contact cleaning drum mechanism of claim 12, wherein, The third pressing plate has an arc shape in the width direction cross section, and the third pressing plate is provided with a plurality of spaced support ribs in the axial direction of the cleaning roller.

14. The multi-faceted contact cleaning drum mechanism of claim 13, wherein, The support ribs are in close contact with the cleaning roller in the circumferential direction of the cleaning roller.

15. A cleaning appliance comprising a cleaning head provided with a housing, the cleaning head being provided with a multi-sided contact cleaning roller mechanism, characterised in that The multi-surface contact cleaning roller mechanism has the multi-surface contact cleaning roller mechanism of any one of claims 1-14.

16. The cleaning appliance of claim 15, wherein, The first pressing plate is provided with a variable gap between the first pressing plate and the housing.

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