Cleaning device and cleaning robot

Abstract

The application provides a cleaning device and a cleaning robot, wherein the cleaning device comprises a roller assembly for water washing of a surface to be cleaned and a mounting rack with a mounting groove, the roller assembly is arranged in the mounting groove and rotationally connected with the mounting rack; one side of the mounting groove forms a water recovery thin cavity, the water recovery thin cavity is close to the side of the mounting groove opening, and the side away from the opening forms a plurality of drainage openings; the middle of the water recovery thin cavity is also provided with a sewage inlet communicated with the mounting groove, the sewage inlet is provided with a water squeezing block for squeezing the roller assembly, the water squeezing block is radially perpendicular to a water scraping strip of the roller assembly, and the water squeezing block and the sewage inlet extend along the length direction of the roller assembly. The application can effectively recover the sewage carried by the roller assembly and the residual water stains on the wall surface, and the wall surface cleaning effect is better.

Description

TECHNICAL FIELD

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

[0002] With the rapid development of high-rise buildings, wall cleaning has become a key link to maintain the beauty of the city. At present, most wall cleaning robots adopt the mode of vacuum adsorption, mobile walking and cleaning mechanism cooperation, and the cleaning mechanism mainly relies on spraying, brushing and scraping to remove wall stains.

[0003] However, although some curtain wall cleaning robots try to recover sewage through negative pressure adsorption or water scraping device, most cleaning mechanisms still cannot effectively recover the sewage generated during the cleaning process and the water stains left on the wall after cleaning. The cleaning process still carries a lot of sewage to clean the wall, resulting in poor wall cleaning effect. SUMMARY

[0004] In view of the shortcomings of the prior art, the present application provides a cleaning device and a cleaning robot, which can effectively recover the sewage carried by the roller assembly and the water stains left on the wall, and has better wall cleaning effect.

[0005] The technical scheme of the present application is as follows:

[0006] On the one hand, the present application provides a cleaning device, which comprises a roller assembly for water washing of a surface to be cleaned and a mounting bracket with a mounting slot, the roller assembly is arranged in the mounting slot and is rotationally connected between the mounting slot and the mounting bracket, and a plurality of water outlets are arranged on the mounting bracket for supplying water to the outer circumferential surface of the roller assembly.

[0007] One side of the mounting slot forms a water recovery thin cavity, the water recovery thin cavity is close to the open side of the mounting slot and forms an opening for recovering water stains on the working surface, and the side away from the opening forms a plurality of drain holes; a sewage inlet is further formed in the middle of the water recovery thin cavity and communicates with the mounting slot, a water squeezing block is arranged at the sewage inlet for squeezing the roller assembly, the water squeezing block is radially perpendicular to the roller assembly, the water squeezing block and the sewage inlet extend along the length direction of the roller assembly; a plurality of flow guide strips are arranged between the sewage inlet and the opening to divide the water recovery thin cavity into a sewage recovery cavity and a working surface water stain recovery cavity, the flow guide strips extend from the opening to the sewage inlet to converge the working surface water stains near the drain holes;

[0008] The water outlets are located on the side of the water squeezing block away from the opening and close to the water squeezing block, and are uniformly arranged along the length direction of the roller assembly.

[0009] Preferably, flexible scraping strips and flexible blocking strips are arranged on both sides of the opening, the flexible scraping strips face the surface to be cleaned, a water suction cavity connected to the water stain recovery cavity of the working surface is formed between the flexible scraping strips and the flexible blocking strips, and a plurality of water suction holes connected to the water suction cavity are formed on the flexible scraping strips.

[0010] Preferably, the water recovery thin cavity is at least two, and a plurality of water recovery thin cavities are distributed along the length direction of the mounting frame, wherein a water outlet is arranged in each water recovery thin cavity.

[0011] Preferably, the detection mechanism for obstacle detection includes a pull wire sensor and at least two elastic members, the pull wire sensor is mounted on one end of the mounting frame away from the mounting groove, the pull wire on the pull wire sensor is connected to a mounting seat arranged in the middle of the mounting frame, the mounting seat is used for mounting a control mechanism for controlling the movement of the cleaning device, the elastic members are distributed on the left and right sides of the mounting seat along the length direction of the mounting frame, one end of the elastic member is connected to one end of the mounting frame, and the other end is connected to the mounting seat, and the control mechanism controls the mounting frame to move away from the obstacle according to the signal fed back by the pull wire sensor.

[0012] Preferably, the elastic member is a spring, and the spring is arranged in parallel with the mounting frame.

[0013] Preferably, the mounting frame is formed with standing members at both ends along the length direction, one end of the spring is mounted on the mounting frame through the standing member, and the other end is mounted on the mounting seat.

[0014] Preferably, a flow guide groove is formed above the sewage inlet in the water recovery thin cavity, the flow guide groove extends from both sides of the sewage inlet to the water outlet to form a reverse triangular structure, and is used for guiding the sewage at the sewage inlet to the water outlet.

[0015] Preferably, the driving mechanism for driving the roller assembly to rotate includes a motor and a gear assembly, the output shaft of the motor is connected with the gear assembly, and the output shaft of the gear assembly extends into one end of the roller assembly and is clamped and connected with the roller assembly.

[0016] Preferably, the gear assembly includes a center gear and first and second gears located on opposite sides of the center gear, the first and second gears are respectively meshed and connected with the center gear, and the first and second gears and the center gear are vertically distributed at one end of the mounting frame; the output shaft of the motor is connected with the first gear to drive the first gear to rotate, and the center of the second gear is provided with a connecting shaft for connecting with the roller assembly.

[0017] In another aspect, the present application also provides a cleaning robot, comprising a main body and the cleaning device as described above, and the main body and the cleaning device are connected through a mechanical arm or a connecting member.

[0018] Compared with the prior art, the present application has the following advantages: the present application forms a water recovery thin cavity on one side of the installation groove, forms a sewage inlet near the middle of the water recovery thin cavity, and forms an opening for recovering water stains on the working surface on the side of the water recovery thin cavity close to the opening of the installation groove. The water squeezing block for squeezing the roller assembly is arranged at the sewage inlet. The water squeezing block and the sewage inlet extend along the length direction of the roller assembly, so that the sewage carried on the roller assembly can be directly flowed into the sewage recovery cavity through the water squeezing block for recovery, and the water stains remaining during the wall surface cleaning process can be recovered into the working surface water stain recovery cavity through the opening. During the process, the water outlet hole is located on the side of the water squeezing block away from the opening and close to the water squeezing block. When the roller assembly rotates, the roller assembly rotates from the water squeezing block to the opening. Therefore, when the sewage is continuously squeezed into the sewage inlet, the water outlet hole continuously supplies water to the outer periphery of the roller assembly, so that the roller assembly is cleaned during the process of cleaning the sewage, thereby effectively ensuring the cleaning effect of the wall surface.

[0019] The outer periphery of the roller assembly is uniformly distributed with bristles. During the wall surface cleaning, the bristles are used to rub the wall surface for cleaning, and the water squeezing block is mainly used to squeeze the sewage carried by the bristles on the outer periphery of the roller assembly. The structure of the present application can effectively ensure the cleaning effect of the wall surface and the residual water stains on the wall surface. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a structural schematic diagram of the cleaning device of the present application;

[0022] Figure 2 It is a sectional structural schematic diagram of the cleaning device of the present application;

[0023] Figure 3 It is a detail view of A in the present application; Figure 1

[0024] Figure 4 It is a detail view of B in the present application; Figure 2 ​​

[0025] Figure 5 A cross-sectional view of the water recovery thin cavity position;

[0026] Figure 6 An exploded structural schematic view of the cleaning device of the present application;

[0027] Figure 7 An exploded structural schematic view of the cleaning device of the present application from another perspective.

[0028] The figure mark: 1 roller assembly; 101 brush hair; 2 mounting frame; 201 mounting groove; 202 water recovery thin cavity; 2021 opening; 2022 drainage port; 2023 sewage inlet; 2024 flow guide strip; 2025 sewage recovery cavity; 2026 water stain recovery cavity of working surface; 203 water outlet hole; 204 standing piece; 205 flow guide groove; 206 water tank; 3 water squeezing block; 4 flexible scraping strip; 401 water absorption hole; 402 protrusion; 5 flexible blocking strip; 501 water absorption cavity; 6 detection mechanism; 601 pull wire sensor; 6011 pull wire; 602 elastic piece; 7 mounting seat; 8 driving mechanism; 801 motor; 802 gear assembly; 8021 center gear; 8022 first gear; 8023 second gear; 9 L-shaped limiting plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", "fourth" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] The cleaning device of the cleaning robot according to the embodiments of the present application is described below with reference to the accompanying drawings. It should be noted that the cleaning device proposed in the present application can also be installed on a cleaning device such as a floor cleaning robot or a cleaning robot. The present application does not make special limitations on the specific scene to which the cleaning device is applicable, that is, the present application does not make special limitations on the specific type of the cleaning device, as long as the cleaning device of the cleaning device proposed in the present application can be used for cleaning. The working surface of the drum water washing can also be referred to as a wall surface or a curtain wall.

[0033] Referring to Figure 1 and Figure 2 , the present application discloses a cleaning device, comprising a drum assembly 1 for water washing of a surface to be cleaned and a mounting bracket 2 with a mounting groove 201, the drum assembly 1 is arranged in the mounting groove 201 and rotationally connected between the mounting bracket 2, and the mounting bracket 2 is provided with a plurality of water outlets 203 for supplying water to the outer circumferential surface of the drum assembly 1;

[0034] One side of the mounting groove 201 forms a water recovery thin cavity 202, the water recovery thin cavity 202 is formed with an opening 2021 for recovering water stains on the working surface near the open side of the mounting groove 201, and a plurality of drain holes 2022 are formed on the side away from the opening 2021; a sewage inlet 2023 is also formed near the middle of the water recovery thin cavity 202 and communicates with the mounting groove 201, the sewage inlet 2023 is provided with a water squeezing block 3 for squeezing the drum assembly 1, the water squeezing block 3 is radially perpendicular to the drum assembly 1, and the water squeezing block 3 and the sewage inlet 2023 extend along the length direction of the drum assembly 1; a plurality of flow guide strips 2024 are arranged between the sewage inlet 2023 and the opening 2021 to divide the water recovery thin cavity 202 into a sewage recovery cavity 2025 and a working surface water stain recovery cavity 2026, the flow guide strips 2024 extend from the opening 2021 to the sewage inlet 2023 to converge the working surface water stains near the drain holes 2022;

[0035] The water outlets 203 are located on the side of the water squeezing block 3 away from the opening 2021 and close to the water squeezing block 3, and are uniformly arranged along the length direction of the drum assembly 1.

[0036] It is understood that in this application, the outer peripheral surface of the roller assembly 1 is evenly distributed with bristles 101. During wall cleaning, the wall surface is cleaned by rubbing the bristles 101 against it. The wringing block 3 mainly squeezes the wastewater carried by the bristles 101 on the outer peripheral surface of the roller assembly 1. Specifically, during the cleaning process, the roller assembly 1 rotates unidirectionally relative to the mounting frame 2 (e.g., ...). Figure 2 As shown in the diagram, the brush bristles 101 rotate from the squeezing block 3 towards the opening 2021. Therefore, the brush bristles 101 that have already been cleaned will carry wastewater. When the brush bristles 101 rotate to the position of the squeezing block 3, the squeezing block 3 will squeeze the brush bristles 101 to expel the wastewater. At this time, since the wastewater inlet 2023 is located in front of the squeezing block 3, the squeezed wastewater can promptly enter the wastewater recovery chamber 2025 for recycling. Furthermore, the water stains remaining on the wall surface during the cleaning process are recovered through the opening 2021 into the working surface water stain recovery chamber 2026, thereby achieving the goal of recycling the water stains on the working surface. Water stains and wastewater are recycled simultaneously. During this process, since the water outlet 203 is located on the side of the squeezing block 3 away from the opening 2021 and close to the squeezing block 3, when the roller assembly 1 rotates, as the roller assembly 1 rotates from the squeezing block 3 towards the opening 2021, the wastewater is continuously squeezed into the wastewater inlet 2023, and the water outlet 203 continuously supplies water to the outer peripheral surface of the roller assembly 1. This allows the roller assembly 1 to be cleaned while being cleaned of wastewater, thus ensuring that the roller assembly 1 used for washing the wall surface maintains a certain degree of cleanliness and effectively guarantees the cleaning effect of the wall surface.

[0037] In this application, the squeezing block 3 extends to about half the thickness of the brush bristles 101, so that while squeezing out the wastewater on the brush bristles 101, the brush bristles 101 can also maintain a certain level of moisture to clean the wall surface.

[0038] In this embodiment, by extending both the squeezing block 3 and the sewage inlet 2023 along the length of the roller assembly 1, the roller assembly 1 can be squeezed along its entire length. Since the sewage inlet 2023 is located in front of the squeezing block 3 and extends along the length of the roller assembly 1, the squeezed water can flow into the sewage recovery chamber 2025 for recycling in a timely manner.

[0039] Moreover, such as Figure 5 As shown, in this embodiment, multiple guide strips 2024 are provided between the sewage inlet 2023 and the opening 2021 to divide the water recovery thin cavity 202 into a sewage recovery cavity 2025 and a work surface water stain recovery cavity 2026. The guide strips 2024 extend from the opening 2021 to the sewage inlet 2023 to collect the work surface water stains to the vicinity of the drain outlet 2022, so that the sewage recovery cavity 2025 and the work surface water stain recovery cavity 2026 can share a cavity for water recovery.

[0040] Further, the two sides of the flow guide strip 2024 are arranged from both sides of the opening 2021 to the vicinity of the drainage port 2022 to form a triangular flow guide groove structure, so as to quickly collect the water marks on the working surface to the sewage inlet 2023, and then quickly enter the drainage port 2022 under the action of negative pressure. In order to accelerate the discharge of water marks on the working surface, while not affecting the discharge efficiency of the sewage, the opening width formed by the two flow guide strips 2024 at the sewage inlet 2023 is larger, at least 3-5 times the diameter of the drainage port 2022, so as to facilitate the residual water marks on the opening 2021 of the working surface.

[0041] Further, the flexible scraping strip 4 and the flexible blocking strip 5 are arranged on both sides of the opening 2021, and the flexible scraping strip 4 faces the surface to be cleaned. The flexible scraping strip 4 and the flexible blocking strip 5 form a water suction cavity 501 connected to the water mark recovery cavity 2026 of the working surface, and a plurality of water suction holes 401 are formed on the flexible scraping strip 4 and connected to the water suction cavity 501.

[0042] It can be understood that the flexible scraping strip 4 is in front, used for scraping the water marks on the surface of the working surface, and the flexible blocking strip 5 is behind, used for supporting the flexible scraping strip 4 and for blocking the water marks from remaining on the working surface behind the flexible scraping strip 4.

[0043] In these embodiments, the flexible scraping strip 4 and the flexible blocking strip 5 are arranged on both sides of the opening 2021, and a plurality of water suction holes 401 are formed on the flexible scraping strip 4 and connected to the water suction cavity 501, so that the residual water marks on the cleaned working surface can be sucked at the same time, thereby ensuring the dryness of the cleaned working surface and avoiding the influence of water marks on the appearance of the cleaned working surface.

[0044] In some embodiments, along the direction towards the working surface, the distance between the flexible scraping strip 4 and the flexible blocking strip 5 gradually decreases, and the two form a tapered triangular area, and the triangular area constitutes the water suction cavity 501.

[0045] At the same time, since the thickness of the water recovery thin cavity 202 is small, and along the direction from far to close to the cleaning working surface, the water recovery thin cavity 202 is gradually expanded from one end of the opening 2021 to the other end, that is, a horn-shaped structure is formed, so that the water flow can be quickly introduced into the drainage port 2022.

[0046] In addition, the side of the flexible scraping strip 4 close to the flexible blocking strip 5 is formed with a plurality of parallel protrusions 402, and a water suction hole 401 is formed between adjacent two protrusions 402, so that a smaller water suction cavity 501 is formed between adjacent two protrusions 402, which can avoid the flexible scraping strip 4 and the flexible blocking strip 5 from being squeezed together during the advancing process, can maintain the basic form of the water suction cavity 501, and ensure that the water marks on the surface of the working surface can enter the water suction cavity 501 in time.

[0047] And it can be understood that the drain 2022 will be connected with the pumping device through the pipeline, and the pumping device generates negative pressure so that the sewage in the sewage recovery cavity 2025 and the water stains in the working surface water stain recovery cavity 2026 are discharged from the drain 2022 to the sewage tank, avoiding the recontamination of water on the working surface.

[0048] Further, the water recovery cavity 202 is at least two, and the plurality of water recovery cavities 202 are distributed along the length direction of the mounting frame 2, and each water recovery cavity 202 is provided with a drain 2022.

[0049] In this embodiment, by setting a plurality of independently partitioned water recovery cavities 202, and each water recovery cavity 202 is provided with a drain 2022 at the top, so that each water recovery cavity 202 can separately extract the sewage extruded by negative pressure, and the suction force is stronger, so as to improve the extraction efficiency of the sewage and the water stains on the working surface, and avoid water accumulation in the water recovery cavity 202.

[0050] Among them, the water recovery cavity 202 is formed with a guide groove 205 above the sewage inlet 2023, and the guide groove 205 extends from both sides of the sewage inlet 2023 to the drain 2022 to form a reverse triangular structure, which is used to guide the sewage at the sewage inlet 2023 to the drain 2022.

[0051] In this embodiment, the guide groove 205 is connected with the sewage inlet 2023 and the drain 2022, so that the sewage at the sewage inlet 2023 can flow directly to the drain 2022, which improves the extraction rate of the sewage, reduces the accumulation of the sewage in the water recovery cavity 202, reduces the water consumption of the cleaning mechanism using this structure, and ensures the cleaning efficiency of the whole machine.

[0052] In this application, a plurality of independently partitioned water recovery cavities 202 are formed on one side of the mounting frame 2, the length of the water recovery cavity 202 is about 9-15cm, and the sewage inlet 2023 is arranged in the middle of the water recovery cavity 202, and the opening 2021 is arranged at the bottom of the water recovery cavity 202, which can ensure that the sewage and the water stains on the working surface are recovered in time, and avoid the sewage and the water stains on the working surface.

[0053] It can be understood that the mounting frame 2 is also formed with a water tank 206 extending along the length direction of the roller assembly 1, and the water tank 206 is provided with a water outlet hole 203; the mounting frame 2 is also provided with a water inlet connected with the water tank 206.

[0054] Further, the cleaning device in the embodiment further comprises a detection mechanism 6 for obstacle detection, the detection mechanism 6 comprises a pull wire sensor 601 and at least two elastic members 602, the pull wire sensor 601 is installed at one end of the mounting frame 2 away from the mounting groove 201, the pull wire 6011 on the pull wire sensor 601 is connected to the mounting seat 7 provided in the middle of the mounting frame 2, the mounting seat 7 is used for mounting a control mechanism for controlling the movement of the cleaning device; the elastic members 602 are distributed on the left and right sides of the mounting seat 7 along the length direction of the mounting frame 2; one end of the elastic member 602 is connected to one end of the mounting frame 2, and the other end is connected to the mounting seat 7; the control mechanism controls the mounting frame 2 to move away from the obstacle according to the signal fed back by the pull wire sensor 601.

[0055] It can be understood that, since there are usually various protruding obstacles such as window frames, supports, decorative strips and the like on the working surface, when the cleaning device is cleaning, it will not control the cleaning device to be retracted after seeing the protruding obstacles or after hitting the obstacles, but it is possible to continue to hit the protruding obstacles, and when the acting force between the cleaning device and the protruding obstacles is too large, the cleaning device is easily damaged.

[0056] In the embodiment, a high-precision pull wire sensor 601 can be used, when the mounting frame 2 collides with the protruding obstacles, the pull wire 6011 in the pull wire sensor 601 will be displaced and detected, when the displacement is greater than or equal to a preset displacement, a collision signal is fed back to the control mechanism at this time; and when the displacement is less than or equal to the preset displacement, no collision signal is fed back to the control mechanism at this time, the purpose of this arrangement is to avoid the situation that when the cleaning device hits some protrusions 402 stains (such as bird droppings and the like) on the working surface, since the pull wire sensor 601 has high precision, if it is judged as a collision and fed back to the control mechanism, a judgment error will occur; therefore, in the embodiment, only when the displacement of the pull wire 6011 is greater than or equal to the preset displacement, the collision signal is fed back to the control mechanism.

[0057] When the control mechanism receives the collision signal, the control mechanism controls the mounting frame 2 to move away from the obstacle or no longer continue to move in the direction of the protruding obstacles according to the collision signal fed back by the pull wire sensor 601, thereby playing the role of obstacle detection and feedback; and since the elastic members 602 are further arranged between the mounting seat 7 and the mounting frame 2, when the mounting frame 2 collides with the protruding obstacles, the elastic members 602 can play the role of buffering and reducing the acting force of the obstacles on the mounting frame 2.

[0058] Among them, as a preferred embodiment, the elastic member 602 can be a spring, and the spring is arranged in parallel close to the mounting frame 2.

[0059] And in particular, the two ends of the mounting frame 2 along the length direction are respectively formed with standing pieces 204, one end of the spring is mounted on the mounting frame 2 through the standing pieces 204, and the other end is mounted on the mounting seat 7, so that the spring is at a certain distance from the mounting frame 2 to avoid friction between the spring and the mounting frame 2 during the extension and contraction process.

[0060] In the embodiment, the spring and the mounting frame 2 are arranged in parallel to avoid the force of the spring acting on the mounting frame 2 being excessively dispersed in directions other than the length direction of the mounting frame 2 during the extension and contraction process.

[0061] It can be understood that when the end close to the pull wire sensor 601 collides, it is assumed that the displacement detected by the pull wire 6011 at this time is positive; when the end away from the pull wire sensor 601 collides, the displacement detected by the pull wire 6011 at this time is negative. Thus, only one pull wire sensor 601 can be used to achieve the purpose of detecting the collision.

[0062] In the embodiment, as long as the displacement of the pull wire 6011 is greater than the preset displacement, the control mechanism immediately controls the mounting frame 2 to move away from the obstacle or no longer continue to move in the direction of the protruding obstacle, thereby avoiding the force of the obstacle acting on the cleaning device from continuing to increase; at the same time, before the displacement of the pull wire 6011 is greater than the preset displacement during the collision, the spring also deforms, so that the spring always generates a force on the mounting frame 2, thereby always buffering the cleaning device, so as to ensure that the collision causes less damage to the cleaning device, thereby greatly reducing the damage to the cleaning device, and achieving the purpose of obstacle detection.

[0063] Moreover, when the mounting frame 2 no longer contacts the protruding obstacle, the spring also plays a resetting role, so that the pull wire 6011 in the pull wire sensor 601 is reset.

[0064] Further, the side of the pull wire sensor 601 away from the mounting seat 7 is provided with an L-shaped limiting plate 9, one side of the L-shaped limiting plate 9 abuts against the pull wire sensor 601, and the opening 2021 of the L-shaped limiting plate 9 faces away from the pull wire sensor 601. In the embodiment, the L-shaped limiting plate 9 can limit and mount the pull wire sensor 601.

[0065] It can be understood that in order to drive the roller assembly 1 to rotate to facilitate cleaning of the working surface, the cleaning device of the embodiment further comprises a driving mechanism 8 for driving the roller assembly 1 to rotate, the driving mechanism 8 comprising a motor 801 and a gear assembly 802, the output shaft of the motor 801 being connected with the gear assembly 802, and the output shaft of the gear assembly 802 extending into one end of the roller assembly 1 and being clamped and connected with the roller assembly 1. In the embodiment, the gear assembly 802 can avoid the inconvenience of extending the wire into the roller assembly 1.

[0066] Specifically, the gear assembly 802 comprises a center gear 8021 and first and second gears 8022, 8023 located on opposite sides of the center gear 8021, the first and second gears 8022, 8023 are respectively engaged with the center gear 8021, and the first and second gears 8022, 8023 and the center gear 8021 are vertically arranged at one end of the mounting frame 2; the output shaft of the motor 801 is connected with the first gear 8022 to drive the first gear 8022 to rotate, and the center of the second gear 8023 is provided with a connecting shaft for connecting with the roller assembly 1.

[0067] In this embodiment, the first gear 8022, the center gear and the second gear 8023 are vertically arranged in a straight line at one end of the mounting frame 2, so as to reduce the space occupied by the gear assembly 802 and facilitate installation.

[0068] On the other hand, the present application also provides a cleaning robot, comprising a main body and the above cleaning device, and the main body and the cleaning device are connected through a mechanical arm or a connecting piece.

[0069] In summary, one side of the installation slot 201 forms a water recovery thin cavity 202, and a sewage inlet 2023 is formed near the middle of the water recovery thin cavity 202 and communicates with the installation slot 201, and an opening 2021 for recovering water stains on the work surface is formed on the side of the water recovery thin cavity 202 close to the opening of the installation slot 201, and a water squeezing block 3 for squeezing the roller assembly 1 is arranged at the sewage inlet 2023, and the water squeezing block 3 and the sewage inlet 2023 extend along the length direction of the roller assembly 1, so that the sewage carried on the roller assembly 1 can be directly flowed into the sewage recovery cavity 2025 after being squeezed by the water squeezing block 3 for recovery, and the residual water stains in the wall cleaning process can be recovered into the work surface water stain recovery cavity 2026 through the opening 2021; and in this process, since the water outlet hole 203 is located on the side of the water squeezing block 3 away from the opening 2021 and close to the water squeezing block 3, when the roller assembly 1 rotates from the water squeezing block 3 to the opening 2021, the water outlet hole 203 continuously supplies water to the outer periphery of the roller assembly 1 while the sewage is continuously squeezed into the sewage inlet 2023, so that the roller assembly 1 can be cleaned in the process of cleaning the sewage, thereby effectively ensuring the cleaning effect of the wall.

[0070] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cleaning device, characterized in that, The application relates to a cleaning device for a surface to be cleaned, which comprises a roller assembly for washing the surface to be cleaned and a mounting frame with a mounting groove, wherein the roller assembly is arranged in the mounting groove and is rotationally connected with the mounting frame, and a plurality of water outlets are arranged on the mounting frame for supplying water to the outer circumferential surface of the roller assembly. One side of the mounting groove is formed with a water recovery thin cavity, which is formed with an opening for recovering the water stains on the surface to be cleaned near the opening side of the mounting groove, and is formed with a plurality of drainage openings away from the opening; a sewage inlet is formed in the middle of the water recovery thin cavity and is communicated with the mounting groove; a water squeezing block is arranged at the sewage inlet and is used for squeezing the roller assembly; the water squeezing block is radially perpendicular to the roller assembly; the water squeezing block and the sewage inlet extend along the length direction of the roller assembly; a plurality of flow guide strips are arranged between the sewage inlet and the opening so as to divide the water recovery thin cavity into a sewage recovery cavity and a surface water stain recovery cavity; the flow guide strips extend from the opening to the sewage inlet so as to converge the surface water stains to the vicinity of the drainage openings. The water outlets are arranged on the side of the water squeezing block away from the opening and close to the water squeezing block; the water outlets are uniformly arranged along the length direction of the roller assembly.

2. The cleaning apparatus of claim 1, wherein Flexible scraping strips and flexible blocking strips are arranged on the two sides of the opening respectively; the flexible scraping strips face the surface to be cleaned; the flexible scraping strips and the flexible blocking strips are formed with a water suction cavity which is communicated with the surface water stain recovery cavity; a plurality of water suction holes are formed in the flexible scraping strips and are communicated with the water suction cavity.

3. The cleaning apparatus of claim 1, wherein The water recovery thin cavity is at least two; a plurality of water recovery thin cavities are distributed along the length direction of the mounting frame; and one drainage opening is arranged in each water recovery thin cavity.

4. The cleaning apparatus of claim 1, wherein The application further comprises a detection mechanism for obstacle detection, which comprises a pull wire sensor and at least two elastic members; the pull wire sensor is arranged at one end of the mounting frame away from the mounting groove; a pull wire on the pull wire sensor is connected to a mounting seat arranged in the middle of the mounting frame; the mounting seat is used for mounting a control mechanism for controlling the movement of the cleaning device; the elastic members are distributed on the left and right sides of the mounting seat along the length direction of the mounting frame; one end of the elastic members is connected to one end of the mounting frame, and the other end is connected to the mounting seat; the control mechanism controls the mounting frame to move away from the obstacle according to the signal fed back by the pull wire sensor.

5. The cleaning apparatus of claim 4, wherein The elastic members are springs; the springs are arranged in parallel with the mounting frame.

6. The cleaning apparatus of claim 5, wherein The two ends of the mounting frame along the length direction are formed with standing members; one end of the spring is arranged on the mounting frame through the standing members, and the other end is arranged on the mounting seat.

7. The cleaning apparatus of claim 1, wherein A flow guide groove is formed above the sewage inlet in the water recovery thin cavity; the flow guide groove extends from the two sides of the sewage inlet to the drainage openings to form an inverted triangular structure, and is used for guiding the sewage at the sewage inlet to the drainage openings.

8. The cleaning apparatus of claim 1, wherein, The application further comprises a driving mechanism for driving the roller assembly to rotate, which comprises a motor and a gear assembly; the output shaft of the motor is connected with the gear assembly; the output shaft of the gear assembly extends into one end of the roller assembly and is clamped with the roller assembly.

9. The cleaning apparatus of claim 8, wherein, The gear assembly comprises a center gear and first and second gears located on opposite sides of the center gear, the first and second gears being in meshing connection with the center gear, and the first and second gears and the center gear being vertically distributed at one end of the mounting frame; an output shaft of the motor is connected with the first gear to drive the first gear to rotate, and the center of the second gear is provided with a connecting shaft for connecting with the roller assembly.

10. A cleaning robot characterized by, The cleaning device comprises a main body and any one of claims 1-9, and the main body and the cleaning device are connected through a mechanical arm or a connecting piece.

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