Cleaning apparatus and cleaning assembly

Abstract

The present application relates to the technical field of cleaning, and particularly relates to a cleaning device and a cleaning assembly. The cleaning device comprises a rolling brush, a water spraying assembly, a scraper assembly and a driving member. The rolling brush can rotate around a first axis. The water spraying assembly is used for applying liquid to the rolling brush. The scraper assembly is connected to the water spraying assembly and has a plate body rotating around a second axis. The plate body is located below the water spraying assembly, and the second axis is parallel to the first axis. The driving member is used for driving the plate body to rotate relative to the water spraying assembly. The plate body has a first position and a second position. In the first position, the plate body is always pressed against the rolling brush under the driving force of the driving member. The second position is the limit position that the scraper assembly can reach under the action of the driving member when the rolling brush is not installed. The scraper assembly is changed from a fixed mode to a rotatable mode. With the decrease of the diameter of the rolling brush due to wear, the rotating scraper assembly can always keep pressing the rolling brush.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning, and in particular to a cleaning device and a cleaning assembly. BACKGROUND

[0002] With the development of social productivity, people's living standards have also been improved. On the premise of material basis, people begin to use various tools to reduce labor and improve the quality of life, and household cleaning equipment emerges as the times require. The cleaning machine product which has dust and water absorption capacity at the same time has obtained the favor of a large number of consumers due to its strong ground cleaning capacity. In recent years, with the update of technology, the iteration of product, the ground cleaning machine equipment has made great progress.

[0003] However, the performance of the scrubber still has certain limitations. At present, the scrubber with low roller brush rotation speed generally uses a metal scraper to extrude the roller brush to scrape the sewage into the suction port, but most of the metal scrapers are fixed, that is, the extrusion interference amount of the metal scraper on the roller brush is fixed. When the scrubber works, the resilience and water absorption performance of the roller brush bristles decrease with the increase of the use period, and the roller brush bristles are consumed. The extrusion amount of the scraper on the roller brush decreases, and the extrusion effect of the scraper on the roller brush becomes poor, causing water marks on the ground. SUMMARY

[0004] In order to solve the above technical problems, the present application provides a cleaning device and a cleaning assembly.

[0005] According to a first aspect of the embodiment of the present application, a cleaning device is provided, which comprises:

[0006] a roller brush, which can rotate around a first axis;

[0007] a water spraying assembly, which is used to apply liquid to the roller brush;

[0008] a scraper assembly, which is connected to the water spraying assembly and has a plate body rotating around a second axis, the plate body is located below the water spraying assembly, and the second axis is parallel to the first axis;

[0009] a driving member, which is used to apply a driving force to the scraper assembly to rotate the plate body relative to the water spraying assembly;

[0010] The plate body has a first position and a second position. In the first position, the plate body is always pressed against the roller brush under the driving force of the driving member. The second position is the limit position that the scraper assembly can reach under the action of the driving member when the roller brush is not installed. When the roller brush is installed, the plate body rotates from the second position to the direction away from the roller brush.

[0011] Further, the edge of the plate body is beyond the water spraying assembly on the side close to the rolling brush.

[0012] Further, the second position is the position where the plate body is closest to the rolling brush.

[0013] Further, the driving member is a torsion spring pre-press mounted on the water spraying assembly, and the scraper assembly is provided with a mounting position for fixing one end of the torsion spring.

[0014] Further, the plate body extends along the first axis, and both ends of the extension direction of the plate body are provided with ear pieces which are on the same side of the plate body and perpendicular to the plate body, and the ear pieces are pivotally connected with the water spraying assembly.

[0015] Further, the ear piece is provided with an axle hole matched with the pivot, and the axle hole is an oblong hole.

[0016] Further, the water spraying assembly is provided with a side wall parallel to the ear piece, and the pivot is pivotally connected with the side wall and deviated from the center position of the side wall.

[0017] Further, the plate body is provided with a reinforcing rib which is a convex bump protruding towards the water spraying assembly.

[0018] Further, in the first position, the plate body is provided in an inclined manner relative to the horizontal plane, and along the direction gradually close to the rolling brush, the height of the plate body gradually decreases.

[0019] Further, the water spraying assembly is formed with a limiting strip on the side towards the plate body, and when the plate body is in the second position, the plate body is pressed against the limiting strip under the driving force of the driving member.

[0020] Further, the limiting strip is provided with a plurality of limiting strips and is provided with a gap between adjacent limiting strips.

[0021] Further, the cleaning device further comprises a base, and the base is provided with a sealing strip at the position below the plate body, and the sealing strip is in interference fit with the lower surface of the plate body.

[0022] Further, the sealing strip is provided with a through-flowing drainage hole at the position corresponding to the suction port of the cleaning device.

[0023] Further, the cleaning device further comprises a roller brush cover and a scraping strip, the roller brush cover is connected with the water spraying assembly and located above the roller brush, the scraping strip comprises a first part and a second part connected with each other, the first part extends obliquely downward from the roller brush cover to contact the roller brush, and the second part extends obliquely downward from one end of the first part contacting the roller brush and gradually away from the roller brush.

[0024] Further, the driving member is an elastic member or a magnetic member. According to a second aspect of the embodiments of the present application, a cleaning assembly for a cleaning device is provided, which comprises:

[0025] a roller brush cover;

[0026] a water spraying assembly fixed inside the roller brush cover;

[0027] a scraping plate assembly connected with the water spraying assembly and having a plate body rotating around a second axis, the plate body being located below the water spraying assembly;

[0028] a driving member for driving the plate body to rotate relative to the water spraying assembly and pressing the plate body against the roller brush.

[0029] In the cleaning device provided by the embodiments of the present application, the scraping plate assembly is changed from a fixed mode to a rotatable mode, and the rotating scraping plate assembly can keep pressing the roller brush as the diameter of the roller brush decreases due to wear, so that the scraping plate still has a good water scraping effect when the roller brush is used for a long time, the water mark after use of the device is reduced, the time for the floor to recover to dryness is still superior, the use time of a single roller brush is prolonged, the performance of the whole machine is improved, and the user experience is optimized. BRIEF DESCRIPTION OF DRAWINGS

[0030] The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, make the other features, purposes and advantages of the present application more apparent, and are used to explain the present application. The schematic embodiment drawings of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0031] Figure 1 A perspective view of the scraping plate assembly provided by the embodiments of the present application is schematically shown;

[0032] Figure 2 A side view of the scraping plate assembly provided by the embodiments of the present application is schematically shown;

[0033] Figure 3 A front view of the scraping plate assembly cooperating with the water spraying assembly provided by the embodiments of the present application is schematically shown;

[0034] Figure 4A three-dimensional structural diagram of the cooperation between the scraper assembly and the water spray assembly provided in an embodiment of the present invention is shown schematically.

[0035] Figure 5 for Figure 4 A magnified view of part A in the middle;

[0036] Figure 6 A schematic cross-sectional view of the scraper assembly and water spray assembly provided in an embodiment of the present invention is given;

[0037] Figure 7 A cross-sectional view of the cleaning equipment provided in an embodiment of the present invention is shown schematically. Figure 1 ;

[0038] Figure 8 for Figure 7 A magnified view of part B in the middle section;

[0039] Figure 9 A cross-sectional view of the cleaning equipment provided in an embodiment of the present invention is shown schematically. Figure 2 ;

[0040] Figure 10 for Figure 9 A magnified view of part C in the middle;

[0041] Figure 11 A perspective view of a portion of the structure of the cleaning equipment provided in an embodiment of the present invention is schematically shown;

[0042] Figure 12 A perspective view schematically illustrating a portion of the structure of the cleaning equipment provided in an embodiment of the present invention is given; and

[0043] Figure 13 for Figure 12 A magnified view of part D in the middle.

[0044] In the picture:

[0045] 100. Base;

[0046] 200. Roller brush assembly; 201. Roller brush; 202. Roller brush motor;

[0047] 300. Suction port;

[0048] 400. Scraper assembly; 401. Plate body; 402. Ear plate; 403. Mounting position; 404. Shaft hole; 405. Pivot; 406. Reinforcing rib;

[0049] 500. Water spray assembly; 501. Water outlet; 502. Limiting strip;

[0050] 600. Drive components;

[0051] 700, sealing strip; 701, drainage hole

[0052] 800, brush cover

[0053] 900, scraping strip; 901, first part; 902, second part. DETAILED DESCRIPTION

[0054] In order to make the personnel in the technical field better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part 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 skilled in the art without creative labor should belong to the scope of protection of the present application.

[0055] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification and claims of the present application and the above-described drawings are intended to cover non-exclusive inclusion, for example, a system, product or device comprising a series of units does not have to be limited to only those clearly listed units, but can include units not clearly listed or inherent to these products or devices.

[0056] In the present application, the terms "upper", "lower", "inner", "middle", "outer" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0057] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific situation.

[0058] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixed connection, detachable connection, or integral structure; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific situation.

[0059] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0060] Please refer to the appendix. Figure 1 ~Attached Figure 13 The cleaning device provided in this embodiment may have a base 100, a roller brush assembly 200, a suction port 300, and a suction channel located inside the cleaning device and communicating with the suction port 300. The cleaning device can clean the dirt on the ground through the roller brush assembly 200 and suck up the dirt on the ground through the suction port 300. The sucked dirt enters the suction channel through the suction port 300.

[0061] In the cleaning device provided in this embodiment of the invention, the function of the roller brush assembly 200 is to pick up solids and liquids on the ground. The roller brush assembly 200 includes a roller brush 201, which can rotate around a first axis. The roller brush assembly 200 cleans solids and liquids on the ground through the roller brush 201, while the separation of solids and liquids is accomplished by a scraper. Specifically, the roller brush 201 needs to contact the ground to clean solids and liquids. When the surface of the roller brush 201 contacts and rubs against the ground, the roller brush 201 can adsorb solids and liquids onto its surface. As the roller brush 201 rotates, specifically... Figure 9 neutralization Figure 11 In this process, the roller brush rotates counterclockwise. During rotation, solids and liquids on the surface of the roller brush 201 will first detach from the surface due to their own gravity. Those that do not detach will continue to move as the roller brush 201 rotates. The surface of the roller brush 201, which contains both solids and liquids, will pass through the area where the scraper assembly 400 is located. With the assistance of the scraper assembly 400, the solids and liquids will be scraped off the surface of the roller brush 201 and separated. It should be noted that the scraper assembly 400 is located above the suction port 300. Solids or liquids that detach freely from the surface of the roller brush 201, as well as those scraped off by the scraper assembly 400, will be sucked into the suction channel by the suction port 300.

[0062] The water spray assembly 500 is used to apply liquid to the roller brush 201. During the cleaning process of the cleaning equipment, the cleaning liquid used is mainly provided by the water spray assembly 500 in the cleaning equipment. Specifically, the water spray assembly 500 is provided with a number of water outlet holes 501, which are positioned directly opposite the roller brush 201 and close to the surface of the roller brush 201. The number of water outlet holes 501 are arranged sequentially along the axial direction of the roller brush 201. The water outlet holes 501 are connected to a water supply device (not shown in the figure) through a water outlet pipe, thereby guiding the liquid from the water supply device to the surface of the roller brush 201 through the water outlet holes 501.

[0063] In related technologies, cleaning equipment generally uses a metal scraper to squeeze a roller brush 201 to scrape sewage into the suction port 300. However, most of these scrapers are fixed in place, meaning the squeezing interference of the scraper on the roller brush 201 is constant. When the cleaning equipment is working, the resilience and water absorption of the bristles on the roller brush 201 decrease over time, causing bristle wear. The reduced squeezing force of the scraper on the roller brush 201 results in a less effective squeezing effect, leaving watermarks on the floor.

[0064] Based on this, such as Figures 1-6 As shown, the scraper assembly 400 provided in this embodiment of the invention is rotatably connected to the water spray assembly 500, and is provided with a driving member 600 for driving the plate 401 to rotate relative to the water spray assembly 500.

[0065] The main structure of the scraper assembly 400 is a plate 401, which is located below the water spray assembly 500 and can rotate around a second axis, which is the rotation axis of the scraper assembly 400 and is parallel to the first axis. Furthermore, the plate 401 is also an elongated structure extending along the axial direction of the roller brush 201, i.e., extending in the direction of the first axis. The extension length of the plate 401 is the same as the length of the roller brush 201, allowing for full contact between the scraper assembly 400 and the roller brush 201.

[0066] The driving member 600 is used to apply a force to the scraper assembly 400 to rotate the roller brush 201, so as to drive the plate body 401 to rotate relative to the water spraying assembly 500. Under the driving action of the driving member 600, the plate body 401 has a first position and a second position. In the first position, the plate body 401 is always pressed against the roller brush 201 under the driving force of the driving member 600. The second position is the limit position of the scraper assembly 400 under the action of the driving member 600 when the roller brush 201 is not installed. When the roller brush 201 is installed, the plate body 401 is pressed by the roller brush 201 and rotates away from the roller brush 201 from the second position. In the cleaning equipment provided by the embodiment of the present application, the scraper assembly 400 is changed from a fixed mode to a rotatable mode, so that the first position is not a unique specific position in the entire service life of the roller brush. Specifically, as the diameter of the roller brush 201 becomes smaller, the first position of the plate body 401 also moves accordingly. That is, as the diameter of the roller brush 201 decreases due to wear, the rotating scraper assembly can still press the roller brush 201, so that when the roller brush 201 has a long service life, the scraper still has good water scraping effect, reduces the water marks after the equipment is used, and keeps the ground dry for a long time, prolongs the service life of the single bristle roller brush 201, improves the performance of the entire machine, and optimizes the user experience.

[0067] In the above embodiment, the driving member 600 is used to provide an action force to enable the plate body 401 to rotate relative to the water spraying assembly 500, so that the plate body 401 can always press against the surface of the roller brush 201 with a changing diameter. The specific form of the driving member 600 is not limited in the embodiment of the present application, and any driving mechanism that can achieve the above function can be used. The specific form of the driving member 600 includes but is not limited to a small driving motor, an elastic member or a magnetic member, but from the perspective of structural simplicity and energy consumption, the driving member 600 is preferably an elastic member or a magnetic member.

[0068] When the driving member 600 is selected as an elastic member, the elastic member can be selected as a coil spring, a torsion spring or a rubber spring, etc. The elastic member is pre-pressed and installed between the water spraying assembly 500 and the scraper assembly 400, so that it is elastically deformed between the water spraying assembly 500 and the scraper assembly 400, and drives the plate body 401 to rotate relative to the water spraying assembly 500 by the elastic force. In the state that the roller brush 201 is not installed, the plate body 401 rotates to the second position under the driving of the elastic force. In the state that the roller brush 201 is installed, the plate body 401 is pressed against the surface of the roller brush 201 under the driving of the elastic force, that is, the plate body 401 is in the first position.

[0069] As Figure 4 and 5As shown, the elastic member of the driving member 600 is preferably a torsion spring, which has a small structure and is easy to install, and can provide a large driving force. For example, the torsion spring can be pre-pressed and installed on the water spraying assembly 500, and the scraper assembly 400 is provided with a mounting position 403 for fixing one end of the torsion spring. Specifically, as shown in Figure 1 As shown, the plate body 401 extends along the direction of the first axis, and both ends of the extension direction of the plate body 401 are respectively formed with an ear piece 402. The two ear pieces 402 are located on the same side of the plate body 401 and are perpendicular to the plate body 401. The ear piece 402 is rotatably connected with the water spraying assembly 500 through a pivot 405, and the rotation axis of the pivot 405 is the second axis. The mounting position 403 for fixing one end of the torsion spring is a hole or a slot formed in the ear piece 402, and the other end of the torsion spring is fixed on the water spraying assembly 500. In order to facilitate installation in a small space, the torsion spring 600 is not sleeved on the pivot 405.

[0070] As shown in Figure 2 In order to realize the cooperation between the pivot 405 and the ear piece 402, an axis hole 404 cooperating with the pivot 405 is formed in the ear piece 402. Due to the high straightness requirement of the scraper, in order to eliminate the influence of actual manufacturing, assembly and other errors, the axis hole 404 cooperating with the scraper is designed as an oblong hole for error compensation. If the axis hole 404 is designed as a circular hole, if there is a size error of the scraper assembly 400, the scraper assembly 400 may not be installed, and the design of the oblong hole can compensate for the size error, so that the scraper can be smoothly installed. It should be noted that the oblong hole referred to in the embodiments of the present application includes but is not limited to an elliptical hole, a waist-shaped hole and a runway-shaped hole.

[0071] In some embodiments of the present application, in the first position, the force acting on the roller brush 201 by the plate body 401 is 5-15N. If the driving force of the driving member 600 on the scraper assembly 400 is too large, the force acting on the roller brush 201 by the plate body 401 will also be large, and the large force will cause the load of the roller brush motor 202 driving the roller brush 201 to be large, which will affect the current and temperature rise of the motor. If the force is small, the effect of the scraper pressing the roller brush 201 will be poor, which will affect the drying time and other related performances of the whole machine. Based on experimental research, it is found that when the force acting on the roller brush 201 by the plate body 401 is in the range of 5-15N, the current and temperature rise of the roller brush motor 202 and the effect of the scraper pressing the roller brush 201 are all at a relatively optimal level. Through continuous verification of the whole machine, it is found that the force acting on the roller brush 201 by the plate body 401 is 6N, which is the optimal choice.

[0072] In some embodiments of the present application, as shown in Figure 1As shown, the plate body 401 is provided with a reinforcing rib 406, which is a convex protruding towards the water spraying assembly 500. Since the squeegee and the water spraying assembly 500 are both long strips, and the squeegee and the water spraying assembly 500 are only connected at both ends by the pivot 405, without other connecting structures at the middle position, it is easy to deform during manufacturing, transportation and assembly. In addition to selecting a material with higher rigidity and increasing the thickness, the convex structure of the reinforcing rib 406 can also be added. The convex structure protrudes towards the water spraying assembly 500, that is, the convex protrudes upwards during use. Such a design structure can prevent dirt from accumulating between the squeegee and the water spraying plate on the one hand. Assuming that the convex protrudes away from the water spraying assembly 500, a corresponding concave will be formed on the side facing the water spraying assembly 500, which is easy to accumulate dirt and cause pollution. On the other hand, the upward protruding convex can prevent the sewage or solid on the upper surface of the squeegee from entering the inside of the cleaning device.

[0073] In some embodiments of the present application, as shown in Figures 7-10 As shown, when the plate body 401 is in the first position, the plate body 401 is arranged to be inclined relative to the horizontal plane, and the height of the plate body 401 gradually decreases along the direction gradually approaching the roller brush 201. For example, the squeegee can be arranged to be inclined downward by 2°-10° in the horizontal direction in the first position. When the water spraying assembly 500 sprays water to the roller brush 201 to wet the roller brush 201, liquid will usually flow onto the squeegee. At this time, the liquid on the plate body 401 can be guided to the roller brush 201 along the inclination of the plate body 401, and will not flow back to the base 100 of the cleaning device. The specific liquid flow method is shown by arrows in Figure 10 . Of course, in the second position, the inclination trend of the plate body 401 can also remain the same as in the first position, that is, the plate body 401 is arranged to be inclined relative to the horizontal plane, and the height of the plate body 401 gradually decreases along the direction gradually approaching the roller brush 201. This position is the limit position of the squeegee approaching the roller brush 201, and the plate body 401 is designed to guide the water flow to the roller brush 201 in the entire rotation range. The rotation stroke of the plate body 401 around the pivot 405 is usually between 3°-8°, which can be specifically designed according to the actual product structure and space relationship. For example, the rotation stroke of the plate body 401 around the pivot 405 can be 5.6°.

[0074] It should be noted that in some preferred embodiments, the plate body of the squeegee assembly 400 always exceeds the water spraying assembly 500 in the entire stroke between the first position and the second position. Therefore, whether the roller brush 201 is installed or not, the liquid dripping from the water spraying assembly can be received and guided by the plate body 401. At this time, when the plate body is in the second position, the side edge of the plate body for pressing against the roller brush will be at the position farthest from the water spraying assembly.

[0075] In some embodiments of the present application, the water spraying assembly 500 is formed with a limiting strip 502 towards one side of the plate body 401, and when the plate body 401 is in the second position, the plate body 401 is pressed against the limiting strip 502 under the driving force of the driving member 600. The limiting strip 502 on the water spraying assembly 500 is located on the side of the water spraying assembly 500 close to the roller brush 201, and can be used to define the slope of the first position of the scraper, and can play a reasonable limiting role. The limiting strips 502 are uniformly distributed along the direction of the first axis, and the limiting strips 502 are spaced apart from each other, so as to adapt to the long strip-shaped structure of the scraper. In addition, the limiting strip 502 can also form a necessary gap between the plate body 401 and the water spraying assembly 500, and will not be closed under the action of the driving member 600, that is, except for the limiting strips 502 which are spaced apart from each other between the water spraying assembly 500 and the plate body 401, the other parts are designed without shielding, and a gap is formed between the adjacent two limiting strips 502, which is convenient for cleaning and reduces the accumulation of dirt between the water spraying assembly 500 and the scraper.

[0076] In some embodiments of the present application, as shown in Figures 7-13 The water spraying assembly 500 and the roller brush 201 are both installed on the base 100, and the base 100 below the plate body 401 of the scraper assembly 400 is provided with a sealing strip 700, which is a long strip-shaped and has the same extension length as the plate body 401. The sealing strip 700 is in interference fit with the lower surface of the plate body 401. Since the plate body 401 in the embodiment of the present application is a movable part, a gap that changes constantly will inevitably be formed between the plate body 401 and the base 100, and the sealing strip 700 can form an interference seal between the plate body 401 and the lower side of the plate body 401, which can be used to reduce the dirt entering the inside of the base 100 from the gap between the plate body 401 and the base 100. The sealing strip 700 is arranged on the base 100 of the floor brush, and is located above and adjacent to the dirt suction port 300, so that the dirt can only enter the dirt suction port 300 and cannot enter the base 100 of the floor brush. Preferably, the sealing strip 700 is provided with a drainage hole 701 penetrating up and down at the position corresponding to the dirt suction port 300 of the cleaning device. Although the sealing strip 700 is arranged on the base 100 below the plate body 401 of the scraper assembly 400, the sealing strip 700 is made of elastic material such as rubber, and a small amount of dirt will inevitably enter between the sealing strip 700 and the plate body 401 during use. Based on this, the drainage hole 701 is arranged at the position of the sealing strip 700 corresponding to the dirt suction port 300, as shown in Figure 10 and 13As shown, the dirt above the sealing strip 700 can be brought into the suction port 300 by the negative pressure of the suction port 300. In another embodiment, the drainage hole 701 is a semi-open slot, that is, the drainage hole 701 is an open end on the side of the sealing strip 700 close to the roller brush.

[0077] The scraper assembly 400 is preferably located behind the roller brush 201 in the driving direction of the roller brush 201, and the position of the plate body 401 in contact with the roller brush 201 is located at the midpoint or above in the vertical direction of the roller brush 201, which can achieve better scraping effect. At this time, for the position of the scraper on the water spraying assembly 500, the rotation axis of the pivot 405, that is, the second axis is closer to the first axis of the roller brush 201 in the horizontal direction and farther away from the first axis of the roller brush 201 in the vertical direction, and the up and down displacement of the plate body 401 during the rotation around the pivot 405 is smaller. Therefore, as the diameter of the roller brush 201 decreases, the contact point of the scraper and the roller brush 201 will not shift greatly, which can be used as a guide principle for designing the reasonable position of the scraper assembly 400. In some embodiments, the water spraying assembly 500 has a side wall parallel to the ear 402 of the scraper assembly 400, and the pivot 405 is rotationally connected to the side wall and deviates from the center position of the side wall. Of course, the specific position of the scraper assembly 400 should also be determined in combination with the actual internal space of the product, for example, in some examples, the horizontal distance between the axis of the pivot 405 and the axis of the roller brush 201 is selected to be 28mm, and the vertical distance between the axis of the pivot 405 and the axis of the roller brush 201 is selected to be 19.3mm, and the up and down displacement of the plate body 401 during the rotation around the pivot 405 is smaller.

[0078] In some embodiments of the present application, as shown in FIG. 6, the water spraying assembly 500 is provided with a water tank 501, and the water tank 501 is provided with a water inlet 502 and a water outlet 503. The water inlet 502 is connected to a water supply pipe 504, and the water outlet 503 is connected to a water spraying pipe 505. The water spraying pipe 505 is provided with a plurality of water spraying nozzles 506, and the water spraying nozzles 506 are arranged on the side wall of the water spraying assembly 500. Figure 7 , 9As shown in FIGS. 11, the cleaning device further comprises a roller brush cover 800 and a scraping strip 900, the water spraying assembly 500 is fixed on the roller brush cover 800, the roller brush cover 800 covers the roller brush 201, the scraping strip 900 comprises a first part 901 and a second part 902 connected with each other, the first part 901 extends obliquely downward from the roller brush cover 800 to contact with the roller brush 201, and the second part 902 extends obliquely downward from one end of the first part 901 contacting with the roller brush 201 and gradually away from the roller brush 201. In the embodiment, the scraping strip 900 is arranged in front of the roller brush 201, and extends along the direction of the first axis to contact with the roller brush 201 in the whole axial dimension. When the water spraying plate sprays water on the roller brush 201, the water can be distributed uniformly, and the dirt can be more smoothly taken out from the roller brush cover 800 by the roller brush 201 and not easily accumulated. The second part 902 is designed at the head of the scraping strip 900 to form an outward flange structure, which can prevent the dirt from being easily accumulated on the outside of the scraping strip 900 when the roller brush 201 and the scraping strip 900 are in long-time excess running. The second part 902 can shield the dirt inside the scraping strip 900.

[0079] In the related art, the roller brush motor 202 for driving the roller brush 201 of most cleaning devices is arranged outside the roller brush 201, which occupies space and makes the roller brush 201 unable to keep consistent with the width of the whole machine, which can cause the wall corner and other areas to be not cleaned completely. Based on this, in some embodiments of the present application, the roller brush motor 202 is arranged inside the roller brush 201. Specifically, the roller brush assembly 200 has a rotating roller brush 201, and the motor assembly is arranged inside the roller brush 201, i.e. the roller brush 201 is arranged outside the roller brush motor 202. In this way, the space is reasonably utilized, and the size of the roller brush 201 of the cleaning device in the axial direction can be the same as the size of the cleaning device in the axial direction of the roller brush 201, which is equivalent to lengthening the length of the roller brush 201, improving the cleaning area and the cleaning distance of the side edge of the roller brush 201, and effectively solving the problem that the wall corner and other areas cannot be cleaned completely.

[0080] In some embodiments of the present application, the driving member 600 is selected as a magnetic member, which can be selected as a permanent magnet, etc. A first permanent magnet is arranged on the scraping plate assembly 400, a second permanent magnet is arranged on the water spraying assembly 500 and opposite to the first permanent magnet, and the same poles of the first permanent magnet and the second permanent magnet are opposite to each other. The plate body 401 is driven to rotate relative to the water spraying assembly 500 by magnetic force. In the state that the roller brush 201 is not installed, the plate body 401 is driven to rotate to the second position by magnetic force. In the state that the roller brush 201 is installed, the plate body 401 is pressed on the surface of the roller brush 201 by magnetic force, i.e. the plate body 401 is in the second position.

[0081] The embodiment of the present application also separately protects a cleaning assembly for a cleaning device, which comprises a roller brush cover, a water spraying assembly, a scraper assembly and a driving member. The water spraying assembly is fixed inside the roller brush cover. The scraper assembly is connected to the water spraying assembly and has a plate body rotating around a second axis. The plate body is located below the water spraying assembly, and the second axis is parallel to the first axis. The driving member is used to drive the plate body to rotate relative to the water spraying assembly and to press the plate body against the roller brush. In this embodiment, the roller brush cover, the water spraying assembly, the scraper assembly and the driving member are combined into an integrated unit structure, which can be integrally detachably installed on the cleaning device, and is convenient to use. It should be noted that the specific structure and working mode of the roller brush cover, the water spraying assembly, the scraper assembly and the driving member can refer to the embodiments of the cleaning device provided by the present application, and will not be described here.

[0082] The above cleaning device can obtain better use effect and user experience than existing cleaning devices in different scenes. Some specific use scenes are described below.

[0083] The use scene 1: the cleaning device provided by the embodiment of the application is used to clean the ground dirt. Since the dirt on the ground is a mixture of solid and liquid, when the cleaning device is controlled to run to the dirt area on the ground, the roller brush 201 of the roller brush assembly 200 will be below the ground corresponding to the dirt area, so that the surface of the roller brush 201 is in contact with the dirt area, thereby adhering the solid and liquid in the dirt area to the surface of the roller brush 201, and rotating the surface of the roller brush 201 to the area of the scraper assembly 400 to separate the solid and liquid. At this time, the plate body 401 of the scraper assembly 400 is in contact with the surface of the roller brush 201 to clean the solid on the surface of the roller brush 201, and squeeze the liquid on the surface of the roller brush 201 to be sucked and collected by the suction port 300 below through negative pressure. With the use of the cleaning device, the bristles on the roller brush 201 will lose elasticity, water absorption and other properties as the use period becomes longer, causing the diameter of the roller brush 201 to become smaller. Under the driving action of the driving member 600, the plate body 401 of the roller brush assembly 200 has a first position. In the first position, the plate body 401 is always pressed against the roller brush 201 under the driving force of the driving member 600, that is, the scraper assembly 400 is changed from a fixed mode to a rotatable mode, so that the first position is not a unique specific position in the entire use cycle of the cleaning device. As the diameter of the roller brush 201 becomes smaller, the first position of the plate body 401 will also move accordingly, that is, as the diameter of the roller brush 201 becomes smaller, the rotating scraper assembly can always press the roller brush 201, so that when the use period of the roller brush 201 is relatively long, the scraper still has good water scraping effect, reducing the water marks after use of the device, and the ground still maintains excellent dryness.

[0084] The use scene 2: the roller brush assembly 200 is detachably installed on the cleaning device, and the roller brush assembly 200 includes a fixing member at one end of the roller brush 201 in the axial direction, which is used to detachably fix the roller brush 201 to the base 100. The water spraying assembly 500 is fixed on the roller brush cover 800 by screws, and a torsional spring is pre-pressed and installed on the water spraying assembly 500. The torsional spring is installed at both ends of the scraper assembly 400, and the scraper assembly 400 is installed on the water spraying assembly 500 by the torsional spring at both ends. Specifically, the pivot 405 passes through the shaft hole 404 of the scraper and is installed on the water spraying assembly 500. The plate body 401 extends in the axial direction of the roller brush 201 and is in contact with the roller brush 201 in the entire axial direction. The torsional spring applies a force to the scraper assembly 400 towards the roller brush 201. In the state where the roller brush 201 is not installed, the plate body 401 of the scraper assembly 400 is in a second position (initial position). After the roller brush 201 is installed, the plate body 401 of the scraper assembly 400 is rotated away from the roller brush 201 under the pushing force of the roller brush 201. At this time, the rotation direction is as shown in the figure.Figure 8 The arrow in the figure shows that the plate body 401 of the squeegee assembly 400 is in the first position, when the roller brush 201 is worn or the bristles are in good condition, the force of the torsion spring makes the squeegee assembly 400 rotate around the pivot 405 towards the direction close to the second position and always press the roller brush 201.

[0085] Some embodiments are described in progressive or by way of parallel arrangement in the specification, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other.

[0086] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A cleaning apparatus, characterized by, The utility model relates to a cleaning device, comprising: a rolling brush capable of rotating around a first axis; a water spraying assembly for applying liquid to the rolling brush; a squeegee assembly connected to the water spraying assembly and located above a suction port, the squeegee assembly having a plate body capable of rotating around a second axis, the plate body being located below the water spraying assembly, and the second axis being parallel to the first axis; a driving member for applying a force to the squeegee assembly to drive the plate body to rotate relative to the water spraying assembly; the plate body has a first position and a second position, in the first position, the plate body is always pressed against the rolling brush under the driving force of the driving member, and in the second position, the squeegee assembly can reach an extreme position under the driving force of the driving member when the rolling brush is not installed, and the plate body rotates away from the rolling brush when the rolling brush is installed; wherein, on the side of the water spraying assembly close to the rolling brush, the edge of the plate body exceeds the water spraying assembly, and in the first position, the part of the plate body exceeding the water spraying assembly is inclined relative to the horizontal plane, and the height of the part of the plate body gradually decreases along the direction gradually close to the rolling brush.

2. The cleaning apparatus of claim 1, wherein, on the side of the water spraying assembly close to the rolling brush, the plate body always exceeds the water spraying assembly throughout the stroke between the first position and the second position.

3. The cleaning apparatus of claim 1, wherein, the second position is the position where the plate body is closest to the rolling brush.

4. The cleaning apparatus of claim 1, wherein, the driving member is a torsion spring pre-pressed on the water spraying assembly, and the squeegee assembly is provided with a mounting position for fixing one end of the torsion spring.

5. The cleaning apparatus of claim 1, wherein, the plate body extends along the direction of the first axis, and both ends of the extension direction of the plate body are respectively provided with ear pieces located on the same side of the plate body and perpendicular to the plate body, and the ear pieces are pivotally connected to the water spraying assembly.

6. The cleaning apparatus of claim 5, wherein, the ear pieces are provided with shaft holes matched with the pivot, and the shaft holes are oblong holes.

7. The cleaning apparatus of claim 6, wherein, the water spraying assembly is provided with a side wall parallel to the ear pieces, and the pivot is pivotally connected to the side wall and deviates from the central position of the side wall.

8. The cleaning apparatus of claim 1, wherein, the plate body is provided with reinforcing ribs which are convex bulges protruding towards the water spraying assembly.

9. The cleaning apparatus of claim 1, wherein, the side of the water spraying assembly facing the plate body is formed with limiting strips, and when the plate body is in the second position, the plate body is pressed against the limiting strips under the driving force of the driving member.

10. The cleaning apparatus of claim 9, wherein, the limiting strips are provided in plurality and are spaced from each other, and gaps are formed between adjacent limiting strips.

11. The cleaning apparatus of claim 1, wherein, the cleaning device further comprises a base, and the base is provided with a sealing strip below the plate body, and the sealing strip is in interference fit with the lower surface of the plate body.

12. The cleaning apparatus of claim 11, wherein, the sealing strip is provided with a drainage hole penetrating up and down at the position corresponding to the suction port of the cleaning device.

13. The cleaning apparatus of claim 1, wherein, the cleaning device further comprises a rolling brush cover connected to the water spraying assembly and located above the rolling brush, and a scraping strip comprising a first part and a second part connected to each other, the first part extending obliquely downward from the rolling brush cover to contact the rolling brush, and the second part extending obliquely downward from the end of the first part contacting the rolling brush and gradually away from the rolling brush.

14. The cleaning apparatus of claim 1, wherein, The driving member is an elastic member or a magnetic member. The driving member is an elastic member or a magnetic member.

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