Cleaning equipment and cleaning assembly

Abstract

The invention relates to the technical field of sweeping and cleaning, in particular to cleaning equipment and a cleaning assembly. The cleaning equipment comprises a rolling brush, a water spraying assembly, a scraper assembly and a driving part, and 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 provided with 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 part is used for driving the plate body to rotate relative to the water spraying assembly; the plate body is provided with a first position and a second position, under the first position, the plate body abuts against the rolling brush all the time under the action of the driving force of the driving part, and under the state that the rolling brush is not installed, the scraper assembly can reach the limiting position under the action of the driving part. The scraping plate assembly is changed from a fixed mode to a rotary moving mode, and the rotary scraping plate assembly can always keep extruding the rolling brush along with the reduction of the loss diameter of the rolling brush.

Description

Technical Field

[0001] This invention relates to the field of cleaning technology, and more particularly to a cleaning device and cleaning components. Background Technology

[0002] With the development of social productivity, people's living standards have also improved. With their material needs met, people have begun to use various tools to reduce labor and improve their quality of life, leading to the emergence of household cleaning equipment. Among these, floor cleaning machines, which combine vacuuming and water extraction capabilities, have gained popularity due to their powerful floor cleaning abilities. In recent years, with technological updates and product iterations, floor cleaning equipment has achieved significant development.

[0003] However, floor scrubbers still have certain limitations in performance. Currently, low-speed scrubbers generally use metal scrapers to squeeze the roller brush and draw wastewater into the suction port, but most of these scrapers are fixed in place, meaning the pressure exerted by the scraper on the roller brush is constant. As the scrubber operates, the resilience and absorbency of the brush fibers decrease over time, leading to fiber wear. The reduced pressure from the scraper on the roller brush results in a less effective cleaning, leaving watermarks on the floor. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a cleaning device and cleaning components.

[0005] According to a first aspect of the present invention, a cleaning device is provided, comprising: The roller brush can rotate around the first axis. A water spray assembly for applying liquid to the roller brush; A scraper assembly, connected to the water spray assembly and having a plate that rotates about a second axis, the plate being located below the water spray assembly, the second axis being parallel to the first axis; A driving component is used to apply a force to the scraper assembly toward the rotation of the roller brush, thereby driving the plate body to rotate relative to the water spray assembly; The plate has a first position and a second position. In the first position, the plate 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 rotates from the second position in a direction away from the roller brush.

[0006] Furthermore, on the side near the roller brush, the edge of the plate extends beyond the water spray assembly. Furthermore, the second position is the position of the plate body that is closest to the roller brush.

[0007] Furthermore, the driving component is a torsion spring preloaded and installed on the water spray assembly, and the scraper assembly is provided with a mounting position for fixing one end of the torsion spring.

[0008] Furthermore, the plate extends along the first axis, and ear pieces are formed at both ends of the plate extending in the direction of extension. The ear pieces are located on the same side of the plate and perpendicular to the plate. The ear pieces are pivotally connected to the water spray assembly.

[0009] Furthermore, the ear piece is provided with a shaft hole that mates with the pivot, and the shaft hole is an elongated hole.

[0010] Furthermore, the water spray assembly has a sidewall parallel to the ear piece, and the pivot is rotatably connected to the sidewall and offset from the center of the sidewall.

[0011] Furthermore, the plate is provided with reinforcing ribs, which are protrusions facing the water spray assembly.

[0012] Furthermore, in the first position, the plate is inclined relative to the horizontal plane, and the height of the plate gradually decreases along the direction that gradually approaches the roller brush.

[0013] Furthermore, the water spray assembly forms a limiting strip on one side of the plate. When the plate is in the second position, the plate presses against the limiting strip under the driving force of the driving member.

[0014] Furthermore, multiple limiting strips are provided and spaced apart from each other, with gaps formed between adjacent limiting strips.

[0015] Furthermore, the cleaning device also includes a base, and a sealing strip is provided on the base at a position below the plate, the sealing strip being interference-fitted with the lower surface of the plate.

[0016] Furthermore, a drain hole that runs vertically through the sealing strip is provided at the position corresponding to the suction port of the cleaning device. Furthermore, the cleaning device also includes a roller brush cover and a scraper. The roller brush cover is connected to the water spray assembly and is located above the roller brush. The scraper includes a first part and a second part connected to 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 the end of the first part that contacts the roller brush and gradually moves away from the roller brush.

[0017] Further, the driving member is an elastic member or a magnetic member. According to a second aspect of the present invention, a cleaning assembly for a cleaning device is also provided, comprising: Roller brush cover; The water spray assembly is fixed inside the roller brush cover; A scraper assembly, connected to the water spray assembly and having a plate that rotates about a second axis, the plate being located below the water spray assembly; A driving component is used to drive the plate to rotate relative to the water spray assembly and press the plate onto the roller brush.

[0018] In the cleaning equipment provided in this embodiment of the invention, the scraper assembly is changed from a fixed method to a rotatable and movable method. As the diameter of the roller brush decreases due to wear, the rotating scraper assembly can always maintain the pressure on the roller brush. Even when the roller brush has a long service life, the scraper still has a good water-scraping effect, reducing the occurrence of watermarks after equipment use. The time for the ground to recover from dryness remains excellent, extending the service life of a single bristle roller brush, improving the overall performance of the machine, and optimizing the user experience. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings: Figure 1 A three-dimensional structural diagram of the scraper assembly provided in an embodiment of the present invention is schematically given; Figure 2 A side view of the scraper assembly provided in an embodiment of the present invention is schematically shown; Figure 3 A schematic front view of the scraper assembly and water spray assembly provided in an embodiment of the present invention is given; Figure 4 A 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. Figure 5 for Figure 4 A magnified view of part A in the middle; 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. Figure 7 A cross-sectional view of the cleaning equipment provided in an embodiment of the present invention is shown schematically. Figure 1 ; Figure 8 for Figure 7 A magnified view of part B in the middle section; Figure 9A cross-sectional view of the cleaning equipment provided in an embodiment of the present invention is shown schematically. Figure 2 ; Figure 10 for Figure 9 A magnified view of part C in the middle; 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 given; 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 Figure 13 for Figure 12 A magnified view of part D in the middle.

[0020] In the picture: 100. Base; 200. Roller brush assembly; 201. Roller brush; 202. Roller brush motor; 300. Suction port; 400. Scraper assembly; 401. Plate body; 402. Ear plate; 403. Mounting position; 404. Shaft hole; 405. Pivot; 406. Reinforcing rib; 500. Water spray assembly; 501. Water outlet; 502. Limiting strip; 600. Drive components; 700. Sealing strip; 701. Drainage hole; 800, roller brush cover; 900, scraper; 901, first part; 902, second part. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0022] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this application are intended to cover non-exclusive inclusion. For example, a system, product or device that includes a series of units is not necessarily limited to those units that are explicitly listed, but may include units that are not explicitly listed or that are inherent to such products or devices.

[0023] In this application, the terms "upper," "lower," "inner," "middle," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0024] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0025] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0027] 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.

[0028] 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 11In 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.

[0029] 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 its surface. 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.

[0030] 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.

[0031] Based on this, such as Figure 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.

[0032] 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.

[0033] The driving member 600 applies a force to the scraper assembly 400 toward the roller brush 201 to drive the plate 401 to rotate relative to the water spray assembly 500. Under the driving action of the driving member 600, the plate 401 has a first position and a second position. In the first position, the plate 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 that the scraper assembly 400 can reach 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 401 will rotate away from the second position in a direction away from the roller brush 201 due to the pressure from the roller brush 201. In the cleaning equipment provided in this embodiment of the invention, the scraper assembly 400 is changed from a fixed method to a rotatable and movable method, so that the first position is not a unique and fixed position throughout the entire service life of the roller brush. Specifically, as the diameter of the roller brush 201 continuously decreases, the first position of the plate 401 will also move accordingly. That is, as the diameter of the roller brush 201 decreases due to wear, the rotating scraper assembly can always maintain the pressure on the roller brush 201. This ensures that even when the roller brush 201 has a long service life, the scraper still has a good water-scraping effect, reducing the occurrence of watermarks after equipment use, maintaining excellent dryness time for the ground, extending the service life of a single bristle roller brush 201, improving overall machine performance, and optimizing user experience.

[0034] In the above embodiment, the driving component 600 provides a force that allows the plate 401 to rotate relative to the water spray assembly 500, ensuring that the plate 401 remains pressed against the surface of the roller brush 201, whose diameter is constantly changing. The specific form of the driving component is not specifically limited in this embodiment; any driving mechanism capable of achieving the above function is acceptable. The specific form of the driving component 600 includes, but is not limited to, a small drive motor, an elastic element, or a magnetic element. However, considering structural simplicity and energy consumption, the driving component 600 is preferably an elastic element or a magnetic element.

[0035] When the driving component 600 is selected as an elastic component, the elastic component can be selected as a coil spring, torsion spring or rubber spring, etc. The elastic component is pre-pressed and installed between the water spray assembly 500 and the scraper assembly 400, so that it generates elastic deformation between the water spray assembly 500 and the scraper assembly 400. The plate 401 is driven to rotate relative to the water spray assembly 500 by the elastic force. In the state where the roller brush 201 is not installed, the plate 401 rotates to the second position under the drive of the elastic force. In the state where the roller brush 201 is installed, the plate 401 presses against the surface of the roller brush 201 under the drive of the elastic force, that is, the plate 401 is in the first position.

[0036] like Figure 4 and 5As shown, the elastic element of the driving component 600 is preferably a torsion spring, which has a compact structure for easy installation and can provide a large driving force. For example, the torsion spring can be pre-compressed and installed on the water spray 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... Figure 1 As shown, the plate 401 extends along the first axis, and ear pieces 402 are formed at both ends of the plate 401 extending in the direction of extension. The two ear pieces 402 are located on the same side of the plate 401 and are perpendicular to the plate 401. The ear pieces 402 are rotatably connected to the water spray assembly 500 via a pivot 405, and the axis of rotation of the pivot 405 is the second axis. The mounting position 403 for fixing one end of the torsion spring is an opening or slot formed in the ear piece 402, and the other end of the torsion spring is fixed to the water spray assembly 500. In order to facilitate installation in a confined space, the torsion spring 600 is not sleeved on the pivot 405.

[0037] like Figure 2 As shown, to achieve the engagement between the pivot 405 and the lug 402, a shaft hole 404 is provided on the lug 402 to mate with the pivot 405. Due to the high requirements for the straightness of the scraper, to eliminate the influence of actual manufacturing and assembly errors, the shaft hole 404 for the scraper is designed as an elongated oval hole for error compensation. If the shaft hole 404 were designed as a perfect circle, the scraper assembly 400 might not be able to be installed if there is a dimensional error. The elongated oval hole design can compensate for this dimensional error, allowing the scraper to be installed smoothly. It should be noted that the elongated oval hole referred to in this embodiment of the invention includes, but is not limited to, elliptical holes, oblong holes, and racetrack-shaped holes.

[0038] In some embodiments of the present invention, in the first position, the force exerted by the plate 401 on the roller brush 201 is 5-15N. If the force exerted by the driving component 600 on the scraper assembly 400 is too large, the force exerted by the plate 401 on the roller brush 201 will also increase. A larger force will increase the load on the roller brush motor 202 that drives the roller brush 201, affecting the motor's current and temperature rise. If the force is too small, the scraper will not effectively squeeze the roller brush 201, affecting the overall drying time and other related performance. Based on experimental research, it has been found that when the force exerted by the plate 401 on the roller brush 201 is in the range of 5-15N, the current and temperature rise of the roller brush motor 202, as well as the effect of the scraper squeezing the roller brush 201, are all at a relatively optimal level. Through continuous verification of the entire machine, it has been found that a force of 6N exerted by the plate 401 on the roller brush 201 is the optimal choice.

[0039] In some embodiments of the present invention, such as Figure 1As shown, the plate 401 is provided with reinforcing ribs 406, which are protrusions facing the water spray assembly 500. Since both the scraper and the water spray assembly 500 are elongated, and the scraper and water spray assembly 500 are only connected at both ends by pivots 405, with no other connecting structure in the middle, they are prone to deformation during manufacturing, transportation, and assembly. Besides selecting materials with higher rigidity and increasing material thickness, the aforementioned protrusion structure of the reinforcing ribs 406 can be added. The protrusion structure faces the water spray assembly 500, meaning that the protrusion bulges upwards during use. This design structure, on the one hand, prevents dirt from accumulating between the scraper and the water spray plate. If the protrusion bulged away from the water spray assembly 500, a corresponding pit would be formed on the side facing the water spray assembly 500, which would easily accumulate dirt and cause contamination. On the other hand, the upward-protruding protrusion can, to some extent, prevent sewage or solids on the upper surface of the scraper from crossing the protrusion and entering the cleaning equipment.

[0040] In some embodiments of the present invention, such as Figure 7-10 As shown, when the plate 401 is in the first position, the plate 401 is inclined relative to the horizontal plane, and its height gradually decreases along the direction that gradually approaches the roller brush 201. For example, the scraper can be set to be inclined downwards at a 2°-10° angle in the horizontal direction when in the first position. When the water spray assembly 500 sprays water onto the roller brush 201 and wets it, some liquid usually flows onto the scraper. At this time, the liquid on the plate 401 can be guided along its own inclination to the roller brush 201, and will not flow back onto the base 100 of the cleaning equipment. The specific liquid flow method is as follows: Figure 10 As indicated by the middle arrow. Of course, in the second position, the tilting trend of the plate 401 can also remain the same as in the first position, that is, the plate 401 is tilted relative to the horizontal plane, and its height gradually decreases along the direction gradually approaching the roller brush 201. In this position, the scraper can reach its limit position close to the roller brush 201, designed so that the plate 401 can guide water flow to the roller brush 201 throughout its entire rotation range. The rotation stroke of the plate 401 around the pivot 405 is typically between 3° and 8°, and can be specifically designed according to the actual product's structural dimensions and spatial relationships. For example, the rotation stroke of the plate 401 around the pivot 405 can be 5.6°.

[0041] It should be noted that, in some preferred embodiments, the scraper assembly 400 always extends beyond the water spray assembly 500 throughout its entire stroke between the first and second positions. This ensures that liquid dripping from the water spray assembly can be caught and guided by the scraper assembly, regardless of whether the roller brush 201 is installed. In this case, when the scraper assembly is in the second position, the edge of the scraper assembly used to press against the roller brush will be at its furthest point from the water spray assembly.

[0042] In some embodiments of the present invention, a limiting strip 502 is formed on the side of the water spray assembly 500 facing the plate 401. When the plate 401 is in the second position, the plate 401 presses against the limiting strip 502 under the driving force of the driving member 600. The limiting strip 502 on the water spray assembly 500 is located on the side of the water spray assembly 500 near the roller brush 201, and can be used to limit the slope of the first position of the scraper, thus playing a reasonable limiting role. A plurality of limiting strips 502 are evenly distributed along the direction of the first axis, and the plurality of limiting strips 502 are spaced apart from each other to adapt to the elongated structure of the scraper. In addition, the limiting strip 502 can also make a necessary gap between the plate 401 and the water spray assembly 500, so that they will not be closed under the action of the driving member 600. That is, apart from the limiting strips 502 that are set at intervals between each other, the other parts between the water spray assembly 500 and the plate 401 are designed without obstruction. The gap between two adjacent limiting strips 502 is easy to clean and reduces the accumulation of dirt residue between the water spray assembly 500 and the scraper.

[0043] In some embodiments of the present invention, such as Figure 7-13 As shown, both the water spray assembly 500 and the roller brush 201 are mounted on the base 100. A sealing strip 700 is provided on the base 100 below the plate 401 of the scraper assembly 400. The sealing strip 700 is elongated, and its extension length is the same as the extension length of the plate 401. The sealing strip 700 is interference-fitted with the lower surface of the plate 401. Since the plate 401 in this embodiment is a movable part, a constantly changing gap will inevitably be formed between the lower part of the plate 401 and the base 100. The sealing strip 700 can form an interference seal between its lower side and the plate 401, which can reduce dirt from entering the base 100 from the gap between the lower part of the plate 401 and the base 100. The sealing strip 700 is located on the brush base 100, above and adjacent to the suction port 300, so that dirt can only enter the suction port 300 and not enter the brush base 100. Preferably, a vertically penetrating drainage hole 701 is provided on the sealing strip 700 at the position corresponding to the suction port 300 of the cleaning device. Although a sealing strip 700 is provided on the base 100 below the plate 401 of the scraper assembly 400, the sealing strip 700 is made of elastic material such as rubber. During use, a small amount of dirt will inevitably enter between the sealing strip 700 and the plate 401. Therefore, a drainage hole 701 is opened at the position of the sealing strip 700 corresponding to the suction port 300. Figure 10 and 13As shown, the negative pressure of the suction port 300 can be used to draw dirt from the top of the sealing strip 700 into the suction port 300. In another embodiment, the drainage hole 701 is a semi-open slot, that is, the drainage hole 701 is open on the side of the sealing strip 700 near the roller brush.

[0044] The scraper assembly 400 is preferably located behind the roller brush 201 in the direction of travel, and the contact point between the scraper body 401 and the roller brush 201 is located at the midpoint or higher of the vertical direction of the roller brush 201, which can achieve a better scraping effect. In this case, for the position of the scraper on the water spray assembly 500, the closer the rotation axis of the pivot 405, i.e., the second axis, is in the horizontal direction to the first axis of the roller brush 201, and the further away it is in the vertical direction from the first axis of the roller brush 201, the smaller the vertical displacement of the scraper body 401 during rotation around the pivot 405. This ensures that as the diameter of the roller brush 201 decreases, the contact point between the scraper and the roller brush 201 will not shift significantly, serving as a guiding principle for designing the reasonable position of the scraper assembly 400. In some embodiments, the water spray assembly 500 has a sidewall parallel to the lug 402 of the scraper assembly 400, and the pivot 405 is rotatably connected to the sidewall and offset from the center of the sidewall. Of course, the specific position of the scraper assembly 400 should be determined in conjunction 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 as 28mm, and the vertical distance between the axis of the pivot 405 and the axis of the roller brush 201 is selected as 19.3mm, so that the vertical displacement of the plate 401 is small during the rotation of the pivot 405.

[0045] In some embodiments of the present invention, such as Figure 7 , 9As shown in Figure 11, the cleaning device further includes a roller brush cover 800 and a scraper 900. The water spray assembly 500 is fixed on the roller brush cover 800, which covers the roller brush 201. The scraper 900 includes a first part 901 and a second part 902 connected to each other. The first part 901 extends obliquely downward from the roller brush cover 800 to contact the roller brush 201. The second part 902 extends obliquely downward from the end of the first part 901 that contacts the roller brush 201 and gradually moves away from the roller brush 201. In this embodiment, the scraper 900 is positioned in front of the roller brush 201. The scraper 900 extends along the direction of the first axis to achieve contact with the roller brush 201 throughout its entire axial dimension. The scraper 900 can evenly distribute the water sprayed onto the roller brush 201 by the water spray plate, while dirt can be more smoothly carried out from inside the roller brush cover 800 by the roller brush 201, making it less prone to accumulation. A second part 902 with a downward sloping angle is designed at the head of the scraper 900 to form an outward flange structure, which can prevent dirt from easily accumulating on the outside of the scraper 900 when the roller brush 201 and the scraper 900 are in interference fit for a long time. The second part 902 can block the dirt on the inside of the scraper 900.

[0046] In related technologies, in most cleaning devices, the roller brush motor 202 used to drive the roller brush 201 is placed outside the roller brush 201, occupying space and preventing the roller brush 201 from maintaining the same width as the overall machine. This results in corners and other areas not being cleaned properly. Therefore, in some embodiments of the present invention, the roller brush motor 202 is built inside the roller brush 201. Specifically, the roller brush assembly 200 has a rotating roller brush 201, and the motor assembly is built inside the roller brush 201, meaning the roller brush 201 is fitted outside the roller brush motor 202. This makes efficient use of space, allowing the axial dimension of the roller brush 201 of the cleaning device to be the same as the axial dimension of the cleaning device itself. This effectively lengthens the roller brush 201, increasing the cleaning area and the cleaning distance along the sides of the roller brush 201, thus effectively solving the problem of corners not being cleaned properly.

[0047] In some embodiments of the present invention, the driving component 600 is selected as a magnetic component, which may be a permanent magnet or the like. A first permanent magnet is provided on the scraper assembly 400, and a second permanent magnet is provided on the water spray assembly 500 opposite to the first permanent magnet, such that the same poles of the first permanent magnet and the second permanent magnet are opposite each other. The plate 401 is driven to rotate relative to the water spray assembly 500 by magnetic force. In the state where the roller brush 201 is not installed, the plate 401 rotates to the second position under the drive of magnetic force. In the state where the roller brush 201 is installed, the plate 401 presses against the surface of the roller brush 201 under the drive of magnetic force, that is, the plate 401 is in the second position.

[0048] This invention also separately protects a cleaning component for a cleaning device. This cleaning component includes a roller brush cover, a water spray assembly, a scraper assembly, and a drive unit. The water spray assembly is fixed inside the roller brush cover. The scraper assembly is connected to the water spray assembly and has a plate that rotates around a second axis. The plate is located below the water spray assembly, and the second axis is parallel to the first axis. The drive unit drives the plate to rotate relative to the water spray assembly and presses the plate against the roller brush. In this embodiment, the roller brush cover, water spray assembly, scraper assembly, and drive unit are combined into an integral unit structure, which can be detachably installed on the cleaning device for convenient use. It should be noted that the specific structure and operation of the roller brush cover, water spray assembly, scraper assembly, and drive unit can be referred to the cleaning device embodiment provided in this invention, and will not be repeated here.

[0049] The aforementioned cleaning equipment can achieve better performance and user experience than existing cleaning equipment in different scenarios. Some specific usage scenarios are given below.

[0050] Use Case 1: The cleaning equipment provided in this embodiment of the invention is used to clean dirt on the ground. Since the dirt on the ground is a mixture of solids and liquids, when the cleaning equipment is controlled to run to the dirt area on the ground, the bottom of the roller brush 201 of the roller brush assembly 200 will be directly opposite the ground, so that the surface of the roller brush 201 comes into contact with the dirt area, thereby adhering the solids and liquids in the dirt area to the surface of the roller brush 201. As the roller brush 201 rotates, the surface of the roller brush 201 with the adhering solids and liquids is rotated to the area of ​​the scraper assembly 400 for separation. At this time, the plate 401 of the scraper assembly 400 will come into contact with the surface of the roller brush 201, cleaning off the solids on the surface of the roller brush 201 and squeezing out the liquid adsorbed on the surface of the roller brush 201, which is then sucked in and collected by the suction port 300 below through negative pressure. As the cleaning device is used, the resilience and water absorption of the bristles on the roller brush 201 decrease with the length of the usage cycle, resulting in bristle wear and a smaller diameter of the roller brush 201. Under the driving action of the drive component 600, the plate 401 of the roller brush assembly 200 has a first position. In the first position, the plate 401 is always pressed against the roller brush 201 under the driving force of the drive component 600. That is, the scraper assembly 400 is changed from a fixed method to a rotatable and movable method, so that the first position is not a unique and fixed position throughout the entire usage cycle of the cleaning equipment. As the diameter of the roller brush 201 continues to decrease, the first position of the plate 401 will also move accordingly. That is, as the diameter of the roller brush 201 decreases due to wear, the rotating scraper assembly can always maintain the pressure on the roller brush 201. This ensures that even when the roller brush 201 has a long usage cycle, the scraper still has a good water scraping effect, reducing the appearance of watermarks after equipment use and maintaining excellent floor drying time.

[0051] Use Case 2: The roller brush assembly 200 is detachably mounted on the cleaning device. The roller brush assembly 200 includes a fixing member located at one axial end of the roller brush 201, which is used to detachably fix the roller brush 201 to the base 100. The water spray assembly 500 is fixed to the roller brush cover 800 by screws. A torsion spring is preloaded and installed on the water spray assembly 500. Torsion springs are installed at both ends of the scraper assembly 400. The scraper assembly 400 is installed on the water spray assembly 500 at both ends using the torsion springs. Specifically, the pivot 405 is installed on the water spray assembly 500 by passing through the shaft hole 404 of the scraper. The plate body 401 extends axially in the roller brush 201 and contacts the roller brush 201 throughout the axial direction. The torsion spring applies a force to the scraper assembly 400 toward the roller brush 201. With the roller brush 201 not installed, the scraper assembly 400's plate body 401 is in the second position (initial position). After the roller brush 201 is installed, the scraper assembly 400's plate body 401 is pushed by the roller brush 201 and rotates in a direction away from the roller brush 201. The direction of rotation at this time is as follows: Figure 8As indicated by the arrow, the scraper assembly 400 is positioned in a first position. When the roller brush 201 wears down or the bristles flatten, the force of the torsion spring allows the scraper assembly 400 to rotate about the pivot 405 toward a direction closer to the second position and to always press the roller brush 201 firmly.

[0052] Some embodiments in this specification are described in a progressive or parallel manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0053] The above are merely specific embodiments of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A cleaning apparatus, characterized by, The application relates to a cleaning device comprising: a rolling brush capable of rotating around a first axis; a water spraying assembly for spraying liquid onto the rolling brush, the water spraying assembly being provided with a plurality of water outlets close to the surface of the rolling brush, the plurality of water outlets being arranged in sequence along the axial direction of the rolling brush; a squeegee assembly connected to the water spraying assembly and located above the suction port, the squeegee assembly having a plate body located below the water spraying assembly, the plate body extending along the axial direction of the rolling brush; wherein, in the state of installation of the rolling brush, the edge of the plate body exceeds the water spraying assembly on the side of the water spraying assembly close to the rolling brush and extends into the rolling brush.

2. The cleaning apparatus of claim 1, wherein, The application further comprises a base for installing the rolling brush and the water spraying assembly, the base having a gap with the plate body, and the base being provided with a sealing strip for sealing the gap.

3. The cleaning apparatus of claim 2, wherein, The sealing strip is located between the plate body and the suction port, and the sealing strip is provided with a through-flow hole corresponding to the position of the suction port.

4. The cleaning apparatus of claim 1, wherein, In the state of installation of the rolling brush, the range of the force acting on the rolling brush by the plate body is 5N to 15N.

5. The cleaning apparatus of claim 1, wherein, The part of the plate body exceeding the water spraying assembly is arranged to be 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.

6. The cleaning apparatus of claim 1, wherein, The plate body is provided with a reinforcing rib which is a convex bump protruding towards the water spraying assembly.

7. The cleaning apparatus of claim 1, wherein, The application further comprises a rolling brush cover and a squeegee strip extending downward from the rolling brush cover, the squeegee strip being configured to contact the rolling brush in the axial direction of the rolling brush.

8. The cleaning apparatus of claim 7, wherein, The rolling brush cover is connected to the water spraying assembly and located above the rolling brush, the squeegee strip comprises 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.

9. The cleaning apparatus of claim 7, wherein, The rolling brush cover, the water spraying assembly and the squeegee assembly are combined into an integral unit structure, and the integral unit structure is detachably installed on the cleaning device.

10. The cleaning apparatus of claim 1, wherein, The squeegee assembly is located behind the rolling brush in the driving direction of the rolling brush, and the position of the plate body contacting the rolling brush is located at the midpoint or above the vertical direction of the rolling brush.

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