A surface cleaning robot

Abstract

The application relates to the field of robots, in particular to a surface cleaning robot, which comprises a first cleaning cloth arranged at the bottom of a main body, a second cleaning cloth arranged at one side of the main body, and a driving mechanism for rotating the second cleaning cloth; compared with the prior art, the surface cleaning robot provided by the application cleans the surface to be cleaned through the second cleaning cloth arranged at one side of the main body; since the driving mode of the second cleaning cloth is separated from the walking of the surface cleaning robot, the surface cleaning robot is different from the prior art in which the surface cleaning robot walks at the bottom and simultaneously performs the cleaning work, so that a large roller is saved; the second cleaning cloth is driven to rotate, and the cleaning effect is better improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of robots, in particular to a surface cleaning robot. BACKGROUND

[0002] In daily life, people generally use a cloth to clean glass. After cleaning glass for a long time, the arms are prone to fatigue. In the prior art, there are robots capable of cleaning windows. The window cleaning robot is mainly adsorbed on the glass by a vacuum pump or a fan device at the bottom thereof. Then, the robot drives the cloth at the bottom of the body to wipe off the dirt on the glass.

[0003] For example, Chinese patent document CN10630872A discloses a window cleaning robot device. In the device, the cloth for cleaning windows is arranged at the bottom of the surface cleaning robot. The cloth is driven to rotate by two rollers at the bottom, so as to clean the window. However, since the rollers are relatively large, the edges of the cloth are prone to be raised, which cannot well fit the corners of the glass to clean the corners of the window. SUMMARY

[0004] The present application provides a surface cleaning robot to solve the technical problem of poor cleaning effect of the robot on the corners of the glass in the prior art.

[0005] The present application provides a surface cleaning robot having a main body, comprising:

[0006] a first cleaning cloth arranged at the bottom of the main body;

[0007] a second cleaning cloth arranged at one side of the main body, the second cleaning cloth being driven to rotate by a driving mechanism.

[0008] Optionally, the main body is provided with a negative pressure cavity at the bottom, and the first cleaning cloth is arranged around the outer periphery of the negative pressure cavity.

[0009] Optionally, the advancing direction of the surface cleaning robot is defined as the front direction, and the second cleaning cloth is located at the front end of the main body.

[0010] Optionally, the rotating direction of the second cleaning cloth is parallel or perpendicular to the advancing direction of the surface cleaning robot.

[0011] Optionally, in the case where the rotating direction of the second cleaning cloth is perpendicular to the advancing direction of the surface cleaning robot, the driving mechanism comprises: a driving wheel and two driven wheels, the diameter of the driving wheel is greater than the diameter of the driven wheels; the driven wheels are arranged at positions close to the bottom of the main body and are respectively located at both ends of the end surface where the second cleaning cloth is arranged; and the axes of the driving wheel and the driven wheels are parallel to the advancing direction of the surface cleaning robot.

[0012] Optionally, the outer diameter of the driven wheel is no more than 8mm.

[0013] Optionally, the surface of the driven wheel is a smooth surface or a toothed surface.

[0014] Optionally, the driving mechanism further comprises a driving motor and a working belt.

[0015] The working belt is sleeved outside the driving wheel and the two driven wheels.

[0016] The second cleaning cloth is arranged on the working belt; the driving motor drives the working belt to rotate, which drives the second cleaning cloth to move on the surface to be cleaned, thereby cleaning the surface to be cleaned.

[0017] Optionally, further comprising one or more tensioning wheels, the tensioning wheels are arranged between the driving wheel and the driven wheel and abut against the working belt from the outside of the working belt.

[0018] Optionally, in the case that the rotation direction of the second cleaning cloth is parallel to the advancing direction of the surface cleaning robot, the driving mechanism comprises a driving wheel; the axis of the driving wheel is perpendicular to the advancing direction of the surface cleaning robot, and one end of the second cleaning cloth is sleeved on the driving wheel.

[0019] Correspondingly, the surface cleaning robot further comprises a bottom plate, the bottom plate is arranged directly below the driving wheel, and the two side edges of the bottom plate respectively abut against the inner side of the second cleaning cloth, so that the second cleaning cloth forms an included angle between the bottom plate and the driving wheel.

[0020] Optionally, the included angle ranges from 15° to 60°.

[0021] Optionally, the driving mechanism further comprises a driving motor and a working belt.

[0022] The bottom plate and the main body have a gap for the rotation of the working belt, and the working belt is sleeved outside the driving wheel and the bottom plate.

[0023] The second cleaning cloth is arranged on the working belt; the driving motor drives the working belt to rotate, which drives the second cleaning cloth to move on the surface to be cleaned, thereby cleaning the surface to be cleaned.

[0024] Optionally, the bottom plate is provided with a support; the support divides the bottom plate into a first part, a middle part and a second part.

[0025] The driving motor is arranged in the first part, the middle part or the second part.

[0026] Optionally, when the driving motor sets the middle part, the working belt is respectively sleeved on the part of the driving wheel above the first part and the outer side of the first part, and the part of the driving wheel above the second part and the outer side of the second part.

[0027] Optionally, an adhesive member is arranged on the working belt, and the second cleaning cloth is adhered to the working belt through the adhesive member.

[0028] Optionally, the surface cleaning robot further comprises a speed reduction mechanism arranged on the body, an input end of the speed reduction mechanism being connected to an output shaft of the driving motor, and an output end of the speed reduction mechanism driving the driving wheel to rotate, the speed reduction mechanism being used to match the output rotating speed of the driving motor to the required rotating speed of the working belt.

[0029] Optionally, the speed reduction mechanism comprises a speed reduction gear box and a synchronous belt, the driving motor driving the driving wheel to rotate through the speed reduction gear box and the synchronous belt.

[0030] The application further provides a surface cleaning robot, which has a body and comprises a side cleaning mechanism arranged on a side of the body, the side cleaning mechanism comprising a driving mechanism and a cleaning cloth, the cleaning cloth rotating under the action of the driving mechanism to perform cleaning work on a surface to be cleaned.

[0031] Optionally, the driving mechanism comprises a driving motor and a working belt, the cleaning cloth being sleeved on the working belt, and the rotating direction of the working belt being arranged to be parallel or perpendicular to the side of the body on which the side cleaning mechanism is arranged.

[0032] Optionally, the surface edge of the cleaning cloth in contact with the surface to be cleaned is supported to have an angle of not more than 90°, and the angle position is flush with or beyond the side of the body.

[0033] The application further provides a surface cleaning robot, which has a body and comprises:

[0034] a first cleaning cloth surrounding the outer periphery of a negative pressure cavity at the bottom of the body;

[0035] a second cleaning cloth arranged on the outside or inside of the first cleaning cloth, the second cleaning cloth rotating under the action of a driving mechanism.

[0036] Compared with the prior art, one or more technical solutions provided by the embodiments of the application have at least the following advantages:

[0037] The embodiments of the application provide a surface cleaning robot, which has a body and comprises a first cleaning cloth arranged at the bottom of the body and a second cleaning cloth arranged on a side of the body, the second cleaning cloth rotating under the action of a driving mechanism.

[0038] Compared with the prior art, the surface cleaning robot provided by the application cleans the surface to be cleaned by arranging the second cleaning cloth on one side of the main body. Since the driving mode of the second cleaning cloth is separated from the walking of the surface cleaning robot, it is different from the prior art in which the surface cleaning robot cleans the surface while walking on the bottom. Therefore, the large roller is omitted. By driving the second cleaning cloth to rotate, the cloth area is increased, the dust capacity of the cloth is improved, and the cleaning effect is better. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 A front view of the surface cleaning robot provided for Embodiment 1 of the application;

[0040] Figure 2 A bottom view of the surface cleaning robot provided for Embodiment 1 of the application;

[0041] Figure 3 A structural schematic diagram of the driving mechanism after removing the cover plate provided for Embodiment 1 of the application;

[0042] Figure 4 A structural schematic diagram of the driving mechanism after removing the cover plate provided for Embodiment 1 of the application;

[0043] Figure 5 A structural schematic diagram of the driving motor provided for Embodiment 1 of the application;

[0044] Figure 6 A disassembled schematic diagram of the second cleaning cloth adhered to the working belt provided for Embodiment 1 of the application;

[0045] Figure 7 A front view of the surface cleaning robot provided for Embodiment 2 of the application;

[0046] Figure 8 A bottom view of the surface cleaning robot provided for Embodiment 2 of the application;

[0047] Figure 9 A front view of the driving mechanism after removing the second cleaning cloth provided for Embodiment 2 of the application;

[0048] Figure 10 A side view of the driving mechanism provided for Embodiment 2 of the application;

[0049] Figure 11 A disassembled schematic diagram of the second cleaning cloth adhered to the working belt provided for Embodiment 2 of the application;

[0050] Figure 12 An edge schematic diagram of the cleaning cloth provided for Embodiment 3 of the application. DETAILED DESCRIPTION

[0051] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without the specific details set forth in this description. In other instances, well-known methods, procedures, components, and circuits have not been described in detail so as not to unnecessarily obscure aspects of the present application.

[0052] As Figures 1-6 The surface cleaning robot provided by the first embodiment of the present application is shown.

[0053] The surface cleaning robot provided by the first embodiment of the present application is shown.

[0054] The first cleaning cloth 110 is arranged at the bottom of the main body 100.

[0055] The second cleaning cloth 120 is arranged at one side of the main body 100, and rotates under the action of the driving mechanism 200.

[0056] The main body 100 is in the shape of a square as a whole, and is connected to an external power supply (not shown in the figure). Of course, the surface cleaning robot can also be internally provided with a rechargeable battery, and can work by using the battery power supply; or, the external power supply and the rechargeable battery can be arranged at the same time, and the surface cleaning robot can work in both cases.

[0057] The top of the main body 100 is a hand-holding part, which is convenient for the user to hold, so as to place the surface cleaning robot at the working position. The bottom of the main body 100 is provided with a negative pressure cavity, and the first cleaning cloth 110 is arranged around the outer periphery of the negative pressure cavity.

[0058] The bottom of the main body 100 is provided with a suction accessory 130, which can be a vacuum suction cup or a fan. The principle of the vacuum suction cup is to form a pressure difference between the inside and outside of the main body 100, so as to be adsorbed on the glass. Of course, for the vacuum suction cup, it is usually adsorbed on the glass surface, because the medium surface needs to be flat and obstacle-free to form a certain vacuum environment. For the fan, it can be adsorbed on the surface of the marble medium wall, ceramic tile, etc.

[0059] The bottom of the main body 100 is also provided with a roller. When cleaning the glass, the surface cleaning robot moves on the glass surface along the planned window-cleaning path (such as the wiping sequence from left to right, from top to bottom), and uses the force of the suction accessory 130 adsorbed on the glass to drive the first cleaning cloth 110 to wipe the large area of dirt on the glass.

[0060] In order to better remove the dirt on the corners of the glass, the surface cleaning robot provided by the embodiment of the application is provided with a second cleaning cloth 120 in addition to the first cleaning cloth 110 arranged at the bottom of the main body 100. Specifically, with the advancing direction of the surface cleaning robot as the front direction, the second cleaning cloth is arranged at the front end of the main body and is driven by the driving mechanism 200 to improve the wiping of the surface cleaning robot on the corners which are difficult to clean. The driving mechanism 200 is described in detail below.

[0061] The driving mechanism 200 comprises a driving wheel 210 and two driven wheels 220. The diameter of the driving wheel 210 is greater than the diameter of the driven wheel 220. The driving wheel 210 is arranged at a position close to the bottom of the main body 100 and is respectively arranged at the two ends of the end face where the second cleaning cloth 120 is arranged. The axis of the driving wheel 210 and the driven wheel 220 is parallel to the advancing direction of the surface cleaning robot.

[0062] In the embodiment, the driving mechanism 200 further comprises a driving motor 230 and a working belt 240.

[0063] The working belt 240 is sleeved outside the driving wheel 210 and the two driven wheels 220. The driving motor 230 drives the driving wheel 210 to rotate, and the working belt 240 is driven by the driving wheel 210 to rotate along the outside of the driving wheel 210 and the two driven wheels 220.

[0064] The second cleaning cloth 120 is arranged on the working belt 240. Specifically, the working belt 240 is provided with an adhesive member 241, and the second cleaning cloth 120 is adhered to the working belt 240 by the adhesive member 241. Optionally, the adhesive member 241 is a magic tape.

[0065] Since the working belt 240 is sleeved outside the driving wheel 210 and the two driven wheels 220, when the working belt 240 rotates, the rotating direction of the second cleaning cloth 120 is perpendicular to the advancing direction of the surface cleaning robot. When the surface cleaning robot wipes the corners of the cleaning surface, the rotating direction of the second cleaning cloth 120 arranged on the working belt 240 is not limited by the advancing direction of the surface cleaning robot, thereby avoiding the defect that the edge of the second cleaning cloth 120 is raised and cannot well adhere to the cleaning surface due to the influence of the roller of the surface cleaning robot.

[0066] When the surface cleaning robot advances, the second cleaning cloth 120 moves on the cleaning surface by adhesion. With the help of the suction force between the surface cleaning robot and the cleaning surface, the second cleaning cloth 120 rolls and rubs with the cleaning surface under the driving of the working belt 240, thereby removing the dirt on the cleaning surface.

[0067] Specifically, the drive mechanism 200 is mounted on the body 140. The body 140 is disposed against the side of the main body 100, and includes a motor base 141 and a cover plate 142 for housing the drive motor 230. The motor base 141 and the cover plate 142 are fixed to each other, and the fixing method can be varied. For example, a protrusion is provided on the cover plate 142, and a fixing part is provided at a corresponding position on the motor base 141 in conjunction with the protrusion. The motor base 141 and the cover plate 142 are fixedly connected by fitting the protrusion into the fixing part. Of course, the protrusion and the fixing part can be interchanged, i.e., the protrusion is placed on the motor base 141 and the fixing part is placed on the cover plate 142, without affecting their cooperation.

[0068] A drive motor 230 is fixedly mounted on the motor base 141. The drive motor 230 converts electrical energy into rotational power. Many solutions are available in the prior art; the appropriate motor can be selected based on factors such as the required output speed and torque of the surface cleaning robot when wiping windows, and the power supply used (DC or AC mains power). Many motors are already available in the prior art, and will not be elaborated upon here.

[0069] When setting up the drive motor 230, screw holes can be provided on the side of the main body 100. By passing screws through the motor base 141 and fixing them in the screw holes, the drive motor 230 is fixed to the side of the main body 100. This arrangement also serves to fix the motor base 141 to the side of the main body 100. Optionally, the drive motor 230 can be fixed to the motor base 141 first, and then the motor base 141 can be fixedly placed on the side of the main body 100.

[0070] Specifically, the motor base 141 can be a triangular plate. This triangular plate is positioned against the side of the main body 100. Specifically, at least one of the four sides of the main body 100 is a flat side or at least one side is partially flat. The drive motor 230 is fixedly mounted at the contact position between the triangular plate and the flat portion of that side. During fixing, one of the base edges of the triangular plate is aligned with the bottom of the main body 100, allowing the second cleaning cloth 120 to be positioned perpendicular to the side of the main body 100. After fixing, the cover plate 142 is fastened onto the motor base 141 to assemble the complete machine body 110.

[0071] The driving mechanism 200 is arranged between the motor base 141 and the cover plate 142, and the driving wheel 210 and the two driven wheels 220 are arranged on the motor base 141. The output shaft of the driving motor 230 is output through a reduction gear box and connected to the motor pulley 231 through a pair of worm and gear pairs; specifically, the driving motor 230 is directly connected to the worm through the output shaft of the reduction gear box, and the motor pulley 231 is coaxially arranged with the worm; the motor pulley 231 is connected to the driving wheel 210 through the synchronous belt 211, and the rotation of the motor pulley 231 can drive the driving wheel 210 to rotate through the synchronous belt 211, and the rotation of the driving wheel 210 drives the working belt 240 to rotate. The motion transmission mechanism composed of the reduction gear box, the worm and gear pairs, the synchronous belt 211 and the like can be regarded as a complete reduction mechanism for matching the output rotation speed of the driving motor 230 to the required rotation speed of the working belt 240.

[0072] In an optional embodiment, the outer diameter of the driven wheel 220 is not greater than 8 mm. The smaller the outer diameter of the driven wheel 220, the easier the second cleaning cloth 120 sleeved outside the driven wheel 220 contacts the corners of the surface to be cleaned, thereby improving the cleaning effect.

[0073] The surface of the driven wheel 220 can be a smooth surface or a surface with gears. Specifically, the driven wheel 220 can select gears meshing with the working belt 240. For example, the number of teeth of the driven wheel 220 is 8-15, and the pitch circle diameter is less than 7 mm. The driven wheel 220 can also select a light shaft. For example, a light shaft with a diameter less than 6 mm is used.

[0074] In an optional embodiment, the driving mechanism 200 further comprises one or more tensioning wheels 250, which are arranged between the driving wheel 210 and the driven wheel 220 and abut against the working belt 240 from the outside of the working belt 240. By arranging the tensioning wheel 250, the second cleaning cloth 120 can maintain a certain tension during rotation, which can make the working belt 240 more effectively maintain rotation, avoid slipping during transmission, and enable the working belt 240 to form rolling friction with the surface to be cleaned, thereby improving the cleaning effect.

[0075] As Figures 7-11 The setting mode of the driving mechanism 200 provided by the second embodiment of the application is shown, and the feature is that the rotation direction of the working belt is arranged parallel to the advancing direction of the surface cleaning robot; the following will be described in detail. In the second embodiment, the same parts as the first embodiment are marked with the same icons.

[0076] The driving mechanism 200 comprises a driving wheel 210, an axis of the driving wheel 210 is perpendicular to a moving direction of the surface cleaning robot, one end of the second cleaning cloth 120 is sleeved on the driving wheel 210;

[0077] Correspondingly, the surface robot further comprises a bottom plate 111 for arranging the driving motor 230, the bottom plate 111 is arranged directly below the driving wheel 210, two side edges of the bottom plate 111 are respectively abutted on inner sides of the second cleaning cloth 120, so that the second cleaning cloth 120 forms an included angle between the bottom plate 111 and the driving wheel 210. Specifically, the included angle ranges from 15 to 60 degrees, the smaller the included angle, the easier the second cleaning cloth 120 between the bottom plate 111 and the driving wheel 210 to contact the edge of the surface to be cleaned, thereby improving the cleaning effect.

[0078] In the embodiment, the driving mechanism 200 further comprises a driving motor 230 and a working belt 240.

[0079] The bottom plate 111 and the main body 100 have a gap for the working belt 240 to move therein, so as to sleeve the working belt 240 outside the driving wheel 210 and the bottom plate 111 of the main body 110.

[0080] The second cleaning cloth 120 is arranged on the working belt 240. Specifically, the working belt 240 is provided with an adhesive member 241, and the second cleaning cloth 120 is adhered to the working belt 240 through the adhesive member 241. Optionally, the adhesive member 241 is a magic tape.

[0081] Since the working belt 240 is sleeved outside the driving wheel 210 and the bottom plate 111 of the main body 110, when the working belt 240 rotates, the rotating direction of the second cleaning cloth 120 is parallel to the moving direction of the cleaning robot, and when the surface cleaning robot wipes the edge of the surface to be cleaned, the rotating direction of the second cleaning cloth 120 arranged on the working belt 240 is not limited by the moving direction of the surface cleaning robot, thereby avoiding the defect that the edge of the second cleaning cloth 120 is raised and cannot well adhere to the surface to be cleaned due to the influence of the roller of the surface cleaning robot.

[0082] When the surface cleaning robot moves, the second cleaning cloth 120 moves on the surface to be cleaned by adhesion, and under the driving of the working belt 240, the second cleaning cloth 120 rolls and rubs with the surface to be cleaned by adhesion, thereby removing dirt on the surface to be cleaned.

[0083] Specifically, the driving mechanism 200 is arranged on the side of the main body 100 through the bottom plate 111 on which the driving motor 230 is arranged. The bottom plate 111 is a bottom plate 111 extended to the side of the bottom plate 111 of the main body 100. The bracket 112 is arranged on the bottom plate 111. The bracket 112 divides the bottom plate 111 into a first part, a middle part and a second part, and the driving motor 230 is arranged in the first part, the middle part or the second part.

[0084] After the position of the driving motor 230 is fixed, for example, after the driving motor 230 is fixed in the first part, there is a gap between the corresponding part of the bottom plate 111 and the main body 100, and the distance of the gap is sufficient for the working belt 240 to move in the gap. If the driving motor 230 is arranged in the middle part or the second part, the gap for the working belt 240 to move in is reserved accordingly, which will not be described here.

[0085] For the bottom plate 111 of the first part in which the driving motor 230 is arranged, the fixing mode between the bottom plate 111 and the main body 100 can adopt a detachable connection mode, or can be directly fixed to the side plate of the surface cleaning robot or fixed to the side wall of the bottom plate 111 of the surface cleaning robot.

[0086] The bracket 112 is two parallel flat plates, and a semicircular opening is formed at the top of the flat plate, and the whole is a right triangle, and the driving wheel 210 is arranged on the semicircular opening of the bracket 112. The driving wheel 210 is arranged on the bracket 112.

[0087] Optionally, the length of the driving wheel 210 is adapted to the length of the bottom plate 111, and the length of the driving wheel 210 and the length of the bottom plate 111 are also adapted to the length of the side plate of the main body 100, so that when the surface cleaning robot travels, the length of the side cleaning structure 100 will not be hindered.

[0088] When the driving motor 230 is arranged, a motor bracket for fixing the driving motor 230 is arranged on the bottom plate 111, and the height of the motor bracket is lower than the height of the bracket 112, so that after the driving wheel 210 is arranged on the bracket 112, there is enough space to arrange the driving motor 230 between the driving wheel 210 and the bottom plate 111 of the main body 110. The output shaft of the driving motor 230 is connected with a reduction gear box of a reduction mechanism, the output shaft of the reduction gear box is connected with the driving wheel 210 through a synchronous belt 211, through the synchronous belt 211, the rotation of the driving motor 230 can drive the rotation of the driving wheel 210, and the rotation of the driving wheel 210 drives the rotation of the working belt 240. The reduction gear box and the synchronous belt 211 constitute a reduction mechanism of the driving motor 230, and the output rotation speed of the driving motor 230 is matched to the required rotation speed of the working belt 240.

[0089] In an alternative embodiment, the driving motor 230 is arranged at the middle portion, and the working belt 240 is arranged on the portion of the driving wheel 210 above the first portion and the outer side of the first portion, and the portion of the driving wheel 210 above the second portion and the outer side of the second portion.

[0090] The present application also provides a surface cleaning robot as a third embodiment of the present application. In the third embodiment of the present application, the same parts as the first and second embodiments of the present application are not discussed in detail. The surface cleaning robot provided by the third embodiment of the present application has a main body, which comprises a side cleaning mechanism arranged at the side of the main body, the side cleaning mechanism comprising a driving mechanism and a cleaning cloth, the cleaning cloth rotating under the action of the driving mechanism to perform cleaning work on the surface to be cleaned.

[0091] The driving mechanism comprises a driving motor and a working belt, the cleaning cloth is sleeved on the working belt, and the rotating direction of the working belt is arranged to be parallel or perpendicular to the side of the main body where the side cleaning mechanism is arranged. The specific arrangement can be referred to the first and second embodiments of the present application.

[0092] The surface edge of the cleaning cloth in contact with the surface to be cleaned is supported to have an angle (or included angle) of not more than 90°, and the angle position is flush with or exceeds the side of the main body. Wherein, the meaning of the angle refers to the angle inside the cleaning cloth when a flat cleaning cloth is folded into a three-dimensional shape. For example, when the cleaning cloth is sleeved on the working belt, the working belt with a triangular shape has three acute angles, which can be regarded as the angles of the working belt. After arranging the cleaning cloth on the working belt, the cleaning cloth has three acute angles, which can be regarded as the angles of the cleaning cloth.

[0093] Please refer to Figure 12 In the present embodiment, the cleaning cloth is in the shape of a cuboid as a whole, and the angle A is 90°. The edges of the angle A are the first edge and the second edge which are perpendicular to each other. When the cleaning cloth sweeps the two edges of the right angle of the glass, the first edge and the second edge of the cleaning cloth can better fit the two edges of the right angle of the glass due to the position of the angle A flush with or exceeding the side of the main body, so that the cleaning cloth better cleans the right angle of the glass under the driving of the driving mechanism. As an alternative, the cleaning cloth as a whole can also be arranged in the shape of a square.

[0094] In addition, the angle can also be an angle less than 90°, please refer to Figure 4, the second cleaning cloth 120 is supported by the driving wheel 210 and the two driven wheels 220, and is in a cuboid shape as a whole. The second cleaning cloth 120 is in a less-than-90-degree corner around the edge of the two driven wheels. Further, under the action of the tensioning wheel 250, the second cleaning cloth 120 on both sides of the driving wheel 210 is in a greater-than-90-degree corner.

[0095] Specifically, the less-than-90-degree corner part of the second cleaning cloth 120 is close to the edge of the cover plate 142, and can extend out of the cover plate 142 or at least be flush with the cover plate 142. In summary, the less-than-90-degree corner part of the second cleaning cloth 120 can be in contact with the right angle of the glass or the corner part of the surface to be cleaned. When cleaning, the surface cleaning robot is close to the right angle of the glass, and the less-than-90-degree corner edge of the second cleaning cloth 120 is close to the corner part of the right angle of the glass. Under the action of the driving motor 230, the second cleaning cloth 120 cleans the corner part of the right angle of the glass until the cleaning work is completed.

[0096] The application also provides a surface cleaning robot, which has a main body, comprising:

[0097] A first cleaning cloth is arranged around the outer periphery of the negative pressure cavity at the bottom of the main body.

[0098] A second cleaning cloth is arranged on the outside or inside of the first cleaning cloth, and the second cleaning cloth rotates under the action of the driving mechanism.

[0099] The side cleaning mechanism is arranged to clean the surface to be cleaned. Since the driving mode of the side cleaning member is separated from the walking of the window cleaning robot, the cleaning work is performed while the window cleaning robot walks, which is different from the prior art. Therefore, the large-size roller is omitted. After the structure is adopted, the surface to be cleaned can be better adhered, especially the corner part of the glass can be better adhered, and the cleaning effect is significantly improved.

[0100] Although the above is disclosed with the preferred embodiments, it is not intended to limit the application, and any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the application. Therefore, the protection scope of the application should be subject to the scope defined by the claims of the application.

Claims

1. A surface cleaning robot having a main body, characterized by, The surface cleaning robot comprises: a first cleaning cloth arranged at the bottom of the main body and surrounding the outer periphery of the negative pressure cavity at the bottom of the main body; a second cleaning cloth arranged at one side of the main body, the second cleaning cloth rotating under the action of a driving mechanism; wherein, with the advancing direction of the surface cleaning robot as the front direction, the second cleaning cloth is located at the front end of the main body; the rotating direction of the second cleaning cloth is parallel or perpendicular to the advancing direction of the surface cleaning robot; in the case where the rotating direction of the second cleaning cloth is perpendicular to the advancing direction of the surface cleaning robot, the driving mechanism comprises: a driving wheel and two driven wheels, the driven wheels being arranged at positions close to the bottom of the main body and respectively located at the two ends of the end face where the second cleaning cloth is located; the axes of the driving wheel and the driven wheels are parallel to the advancing direction of the surface cleaning robot, or; in the case where the rotating direction of the second cleaning cloth is parallel to the advancing direction of the surface cleaning robot, the driving mechanism comprises: a driving wheel; the axis of the driving wheel is perpendicular to the advancing direction of the surface cleaning robot, one end of the second cleaning cloth being sleeved on the driving wheel; the surface cleaning robot further comprises: a bottom plate, the bottom plate being arranged directly below the driving wheel, the two side edges of the bottom plate respectively abutting against the inner sides of the second cleaning cloth, so that the second cleaning cloth forms an included angle between the bottom plate and the driving wheel.

2. The surface cleaning robot of claim 1, wherein, in the case where the rotating direction of the second cleaning cloth is perpendicular to the advancing direction of the surface cleaning robot, the diameter of the driving wheel is greater than the diameter of the driven wheel.

3. The surface cleaning robot of claim 2, wherein, the outer diameter of the driven wheel is not greater than 8 mm.

4. The surface cleaning robot of claim 3, wherein, the surface of the driven wheel is a smooth surface or a surface with gears.

5. The surface cleaning robot of claim 2, wherein, the driving mechanism further comprises: a driving motor and a working belt; the working belt is sleeved outside the driving wheel and the two driven wheels; the second cleaning cloth is arranged on the working belt; the working belt is driven to rotate by the driving motor, so as to drive the second cleaning cloth to move on the surface to be cleaned, thereby cleaning the surface to be cleaned.

6. The surface cleaning robot of claim 5, wherein, The surface cleaning robot further comprises: one or more tensioning wheels, the tensioning wheels being arranged between the driving wheel and the driven wheels and abutting against the working belt from the outside of the working belt.

7. The surface cleaning robot of claim 1, wherein, the included angle ranges from 15° to 60°.

8. The surface cleaning robot of claim 1, wherein, in the case where the rotating direction of the second cleaning cloth is parallel to the advancing direction of the surface cleaning robot, the driving mechanism further comprises: a driving motor and a working belt; the bottom plate and the main body have a gap for the working belt to rotate, the working belt being sleeved outside the driving wheel and the bottom plate; the second cleaning cloth is arranged on the working belt; the working belt is driven to rotate by the driving motor, so as to drive the second cleaning cloth to move on the surface to be cleaned, thereby cleaning the surface to be cleaned.

9. The surface cleaning robot of claim 8, wherein, a support is arranged on the bottom plate; the support divides the bottom plate into a first part, a middle part and a second part; the driving motor is arranged in the first part, the middle part or the second part.

10. The surface cleaning robot of claim 9, wherein, When the driving motor sets the middle part, the working belt is respectively sleeved on the part of the driving wheel above the first part and the outside of the first part, and the part of the driving wheel above the second part and the outside of the second part.

11. The surface cleaning robot according to any one of claims 1-10, wherein, An adhesive is arranged on the working belt, and the second cleaning cloth is adhered to the working belt through the adhesive.

12. The surface cleaning robot of claim 5 or 8, wherein, Further comprising: A speed reduction mechanism is arranged on the body, the input end of the speed reduction mechanism is connected to the output shaft of the driving motor, and the output end of the speed reduction mechanism drives the driving wheel to rotate; The speed reduction mechanism is used to match the output rotating speed of the driving motor to the required rotating speed of the working belt.

13. The surface cleaning robot of claim 12, wherein, The speed reduction mechanism comprises a speed reduction gear box and a synchronous belt, and the driving motor drives the driving wheel to rotate through the speed reduction gear box and the synchronous belt.

14. A surface cleaning robot having a main body, characterized by Further comprising: A side cleaning mechanism is arranged on the side of the body, the side cleaning mechanism comprises a driving mechanism and a cleaning cloth, the cleaning cloth rotates under the action of the driving mechanism to perform cleaning work on the surface to be cleaned; A negative pressure cavity is arranged at the bottom of the body; Wherein, the advancing direction of the surface cleaning robot is the front direction, the cleaning cloth is located at the front end of the body, and the rotating direction of the cleaning cloth is parallel or perpendicular to the advancing direction of the surface cleaning robot; In the case that the rotating direction of the cleaning cloth is perpendicular to the advancing direction of the surface cleaning robot, the driving mechanism comprises a driving wheel and two driven wheels, the driven wheels are arranged at positions close to the bottom of the body and are respectively located at both ends of the end surface where the cleaning cloth is located, the axes of the driving wheel and the driven wheels are parallel to the advancing direction of the surface cleaning robot, or; In the case that the rotating direction of the cleaning cloth is parallel to the advancing direction of the surface cleaning robot, the driving mechanism comprises a driving wheel, the axis of the driving wheel is perpendicular to the advancing direction of the surface cleaning robot, one end of the cleaning cloth is sleeved on the driving wheel, and the surface cleaning robot further comprises a bottom plate, the bottom plate is arranged directly below the driving wheel, and the two side edges of the bottom plate abut against the inner sides of the cleaning cloth respectively, so that the cleaning cloth forms an included angle between the bottom plate and the driving wheel.

15. The surface cleaning robot of claim 14, wherein, The driving mechanism comprises a driving motor and a working belt, the cleaning cloth is sleeved on the working belt, and the rotating direction of the working belt is arranged parallel or perpendicular to the side of the body where the side cleaning mechanism is located.

16. The surface cleaning robot of claim 14, wherein, The surface edge of the cleaning cloth in contact with the surface to be cleaned is supported to have an angle not greater than 90°, and the angle position is flush or exceeds the side of the body.

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