Cleaning robot

Abstract

The utility model relates to the technical field of cleaning equipment, in particular to a cleaning robot which comprises a machine body bottom shell, an edge cleaning assembly, a dust box and a fan assembly, the edge cleaning assembly, the dust box and the fan assembly are arranged on the machine body bottom shell, the machine body bottom shell is further provided with a dust collection channel communicating with the dust box, and the fan assembly is configured to vacuumize the dust box. The edge cleaning assembly is arranged on the edge side of the machine body bottom shell, the fan assembly is arranged on the side, opposite to the edge side, of the machine body bottom shell in the left-right direction of the cleaning robot, and the cleaning robot is provided with a first central axis extending in the front-back direction of the cleaning robot. In the left-right direction of the cleaning robot, the distance from the gravity center of the edge cleaning assembly to the first central axis is smaller than the distance from the gravity center of the fan assembly to the first central axis. The fan assembly balances the edge cleaning assembly in the left-right direction of the cleaning robot, and the balance of the cleaning robot in the left-right direction is improved.

Description

TECHNICAL FIELD

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

[0002] The cleaning robot is used for cleaning dust, garbage and stains on the ground, glass or wall surface, and includes autonomous cleaning equipment such as a sweeping robot, a window cleaning robot, a floor washing robot and a sweeping and mopping integrated machine. Among them, the cleaning robot such as the sweeping robot and the sweeping and mopping integrated machine generally includes a machine body, a roller brush assembly, a dust box and a walking assembly assembled on the machine body, the roller brush assembly is used for collecting dust on the ground, the dust collecting box is used for storing the collected dust, and the walking assembly is used for driving the machine body to move.

[0003] At present, some cleaning robots are unstable in operation due to uneven distribution of the center of gravity in the actual use process, especially when the edge cleaning element is arranged on the edge side of the machine body, which increases the weight of the edge side of the machine body, causing the machine body to be unbalanced left and right, and the center of gravity may be unstable when turning or crossing obstacles, affecting the cleaning effect and user experience. CONTENT OF THE UTILITY MODEL

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

[0005] The present application provides a cleaning robot, which includes a machine body bottom shell, an edge cleaning assembly, a dust box and a fan assembly which are all arranged on the machine body bottom shell, a dust collecting channel communicating with the dust box is further arranged on the machine body bottom shell, the fan assembly is configured to vacuum the dust box, so that the dust on the surface to be cleaned enters the dust box through the dust collecting channel, the edge cleaning assembly is arranged on the edge side of the machine body bottom shell, the fan assembly is arranged on the side of the machine body bottom shell opposite to the edge side in the left-right direction of the cleaning robot, the cleaning robot has a first central axis extending in the front-rear direction thereof, and the distance from the center of gravity of the edge cleaning assembly to the first central axis is less than the distance from the center of gravity of the fan assembly to the first central axis in the left-right direction of the cleaning robot.

[0006] In some embodiments, the cleaning robot further includes a machine body top shell which is covered on the machine body bottom shell, and the machine body top shell has a circumferential part constituting the outer peripheral shell of the cleaning robot.

[0007] The fan assembly includes a fan shell, and the shortest straight line distance between the fan shell and the circumferential part is 7-17 mm.

[0008] In some embodiments, in the left-right direction of the cleaning robot, the dust box is arranged between the edge cleaning assembly and the fan assembly.

[0009] In some embodiments, the cleaning robot further comprises an air outlet structure arranged on the bottom shell of the robot body, the air outlet structure having an air outlet channel communicating with an air outlet of the fan assembly, the air outlet channel extending along the left-right direction of the cleaning robot.

[0010] In some embodiments, the air outlet of the air outlet channel is directed towards the edge wiping member of the edge cleaning assembly.

[0011] In some embodiments, a heating structure is arranged in the air outlet channel, the heating structure being configured to heat air passing through the air outlet channel.

[0012] In some embodiments, in the left-right direction of the cleaning robot, the heating structure is relatively close to the air outlet of the air outlet channel.

[0013] In some embodiments, the edge cleaning assembly is movably arranged on the bottom shell of the robot body and moves in the up-down direction of the cleaning robot to have a wiping position and a lifting position.

[0014] In the wiping position, the edge wiping member of the edge cleaning assembly is in contact with the surface to be cleaned; in the lifting position, the edge wiping member is separated from the surface to be cleaned, so that the air outlet of the air outlet channel is directed towards part of the edge wiping member.

[0015] In some embodiments, the air outlet of the air outlet channel is directed towards the edge wiping member of the edge cleaning assembly.

[0016] In the left-right direction of the cleaning robot, the air outlet channel is inclined downward from one end to the other end of the fan assembly.

[0017] In some embodiments, the cleaning robot further comprises an edge sweeping assembly and a pump assembly arranged on the bottom shell of the robot body, the edge sweeping assembly being arranged on the edge side of the bottom shell of the robot body, and the pump assembly and the fan assembly being located on the same side of the cleaning robot in the left-right direction.

[0018] Compared with the prior art, the technical scheme provided by the embodiments of the present application has the following advantages:

[0019] The cleaning robot has a first central axis extending in the front-rear direction thereof, the along-edge cleaning assembly is arranged on the along-edge side of the body bottom shell, the fan assembly is arranged on the side of the body bottom shell opposite to the along-edge side in the left-right direction of the cleaning robot, and in the left-right direction of the cleaning robot, the distance from the gravity center of the along-edge cleaning assembly to the first central axis is less than the distance from the gravity center of the fan assembly to the first central axis, so that the along-edge cleaning assembly is balanced in the left-right direction of the cleaning robot by the fan assembly, the balance in the left-right direction of the cleaning robot is improved, the balance of the cleaning robot during movement, turning and obstacle crossing is improved, the problem of deflection of the cleaning robot due to unstable gravity center is solved, and the cleaning effect and user experience are improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the principles of the application.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings required by the embodiments or the prior art description will be briefly introduced. Obviously, those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0022] Figure 1 A top view schematic diagram of the cleaning robot described in the embodiments of the present application;

[0023] Figure 2 A top view schematic diagram of the local structure of the cleaning robot in Figure 1 ;

[0024] Figure 3 A local enlarged schematic diagram of Figure 1 ;

[0025] Figure 4 A side view schematic diagram of the local structure of the cleaning robot in Figure 1 ;

[0026] Figure 5 A bottom view schematic diagram of the local structure of the cleaning robot in Figure 1 ;

[0027] Figure 6 A cross-sectional view schematic diagram of the air outlet structure of the cleaning robot in Figure 1 ;

[0028] Figure 7 A disassembled schematic diagram of the cleaning robot in Figure 1 ;

[0029] Figure 8A top view schematic diagram of the cleaning robot (the edge cleaning assembly is in the mopping position) provided for some embodiments of the present application;

[0030] Figure 9 A cross-sectional view schematic diagram of the cleaning robot in A-A direction provided for some embodiments of the present application; Figure 8 A partial enlarged view schematic diagram of the cleaning robot in B provided for some embodiments of the present application;

[0031] Figure 10 A cross-sectional view schematic diagram of the cleaning robot in C-C direction provided for some embodiments of the present application; Figure 9 A partial enlarged view schematic diagram of the cleaning robot in D provided for some embodiments of the present application;

[0032] Figure 11 A top view schematic diagram of the cleaning robot (the edge cleaning assembly is in the lifting position) provided for some embodiments of the present application; Figure 8

[0033] A cross-sectional view schematic diagram of the cleaning robot in E-E direction provided for some embodiments of the present application; Figure 12 Figure 11 A bottom view schematic diagram of the cleaning robot provided for some embodiments of the present application;

[0034] Figure 13 Figure 12 A side view schematic diagram of the cleaning robot provided for some embodiments of the present application.

[0035] Figure 14 A top view schematic diagram of the cleaning robot provided for some embodiments of the present application;

[0036] Figure 15 A bottom view schematic diagram of the cleaning robot provided for some embodiments of the present application; Figure 14 A side view schematic diagram of the cleaning robot provided for some embodiments of the present application.

[0037] Figure 16 A side view schematic diagram of the cleaning robot provided for some embodiments of the present application. Figure 14

[0038] Wherein, 1, the bottom shell of the body; 2, the edge cleaning assembly; 21, the edge mopping piece; 22, the edge cleaning support; 3, the dust box; 4, the fan assembly; 5, the top shell of the body; 6, the air outlet structure; 601, the air outlet channel; 61, the upper shell; 62, the lower shell; 63, the dustproof mesh cover; 7, the heating structure; 8, the soundproof structure; 9, the edge sweeping assembly; 10, the pump assembly; 11, the valve assembly; 12, the main mopping piece; 13, the walking assembly; 131, the driving wheel; 132, the driven wheel; 14, the soft rubber tube. DETAILED DESCRIPTION

[0039] In order to enable persons skilled in the art to better understand the above-mentioned purposes, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0040] ​​​Many specific details are set forth in the following description in order to provide a thorough understanding of the present application. However, the present application can be practiced according to other embodiments that can not be described in detail herein; and, obviously, the present application is not limited to the embodiments described herein.

[0041] As Figure 1 and Figure 2 The embodiment of the present application provides a cleaning robot, comprising a body bottom shell 1, an edge cleaning assembly 2, a dust box 3 and a fan assembly 4 which are all arranged on the body bottom shell 1, and a dust collection channel (not shown in the figure) which is arranged on the body bottom shell 1 and communicates with the dust box 3, the fan assembly 4 is configured to vacuum the dust box 3, so that the dust on the surface to be cleaned enters the dust box 3 through the dust collection channel, and the edge cleaning assembly 2 is arranged on the edge side of the body bottom shell 1.

[0042] The fan assembly 4 is arranged on the side opposite to the edge side of the body bottom shell 1 in the left-right direction of the cleaning robot. The cleaning robot has a first central axis extending in the front-rear direction thereof, and in the left-right direction of the cleaning robot, the distance from the center of gravity of the edge cleaning assembly 2 to the first central axis is less than the distance from the center of gravity of the fan assembly 4 to the first central axis.

[0043] It should be noted that the distance from the center of gravity of the edge cleaning assembly 2 to the first central axis is set as L1 which is less than the distance L2 from the center of gravity of the fan assembly 4 to the first central axis, which can be considered that the overall weight of the edge cleaning assembly 2 is less than the overall weight of the fan assembly 4, so that L1 is set to be less than L2, so that the fan assembly 4 and the edge cleaning assembly 2 are balanced in the left-right direction of the cleaning robot. Or in addition to considering the overall weight of the edge cleaning assembly 2 and the fan assembly 4, the balance in the left-right direction of the cleaning robot can also be considered by the remaining structural members arranged on the body bottom shell 1, such as the pump assembly and the like, which cooperate with the edge cleaning assembly 2 and the fan assembly 4 to achieve the balance in the left-right direction of the cleaning robot.

[0044] Exemplarily, in the left-right direction of the cleaning robot, the ratio x of the distance from the center of gravity of the edge cleaning assembly 2 to the first central axis to the distance from the center of gravity of the fan assembly 4 to the first central axis can be set as 0.8≤x<1.0. Wherein, the ratio of the distance from the center of gravity of the edge cleaning assembly 2 to the first central axis to the distance from the center of gravity of the fan assembly 4 to the first central axis can be selected as 0.82, 0.85, 0.88, 0.9, 0.92, 0.95, 0.98 and the like reasonable values according to the overall weight of the fan assembly 4 and the edge cleaning assembly 2.

[0045] Understandably, the ratio x of the distance from the center of gravity of the edge cleaning assembly 2 to the first central axis to the distance from the center of gravity of the fan assembly 4 to the first central axis also cannot be set too small. If x is too large, the distance from the center of gravity of the edge cleaning assembly 2 to the first central axis is small, and at this time, the length of the edge cleaning assembly 2 in the left-right direction of the cleaning robot needs to be increased to make the center of gravity of the edge cleaning assembly 2 as a whole close to the first central axis while also meeting the edge cleaning function. Not only does this occupy more space, but at this time, the side of the edge cleaning assembly away from the first central axis in the left-right direction of the cleaning robot may be raised away from its own center of gravity and may have a poor contact problem with the surface to be cleaned, resulting in poor cleaning effect.

[0046] Therefore, x is set within a reasonable range, which not only reduces the length of the edge cleaning assembly 2 in the left-right direction of the cleaning robot, reduces the occupation of space, but also does not increase the width of the cleaning robot in the left-right direction, which is conducive to the miniaturization design of the cleaning robot.

[0047] Of course, when considering the remaining components arranged on the body bottom shell 1, the ratio x of the distance from the center of gravity of the edge cleaning assembly 2 to the first central axis to the distance from the center of gravity of the fan assembly 4 to the first central axis in the left-right direction of the cleaning robot can also be set to be less than 0.8 or greater than or equal to 1.0.

[0048] Exemplarily, the weight ratio y of the edge cleaning assembly 2 and the fan assembly 4 can be set to 1.0 < y ≤ 1.25. Among them, the weight ratio y of the edge cleaning assembly 2 and the fan assembly 4 can be selected as 1.02, 1.05, 1.08, 1.1, 1.12, 1.15, 1.18, 1.2, 1.22, 1.25, and the like. Reasonable numerical values.

[0049] Understandably, if the ratio x of the above only considers the weight of the edge cleaning assembly 2 and the fan assembly 4, the ratio y of the edge cleaning assembly 2 and the fan assembly 4 also cannot be set too large. If y is too large, although the distance from the edge cleaning assembly 2 and the fan assembly 4 to the first central axis can be set to keep the cleaning robot balanced left and right, but at this time, it is easy to increase the width of the cleaning robot in the left-right direction, so as to cause the overall size of the cleaning robot to be large, which is not conducive to the miniaturization design of the cleaning robot.

[0050] If the arrangement of the edge cleaning assembly 2 and the fan assembly 4 is only considered in terms of the respective weights, the ratio x of the distance of the center of gravity of the edge cleaning assembly 2 to the first central axis to the distance of the center of gravity of the fan assembly 4 to the first central axis can be selected according to the weight ratio y of the edge cleaning assembly 2 to the fan assembly 4. For example, if y is selected as 1.25, x is 0.8, i.e. 1 / y. Of course, the arrangement of the remaining components on the bottom shell 1 of the cleaning robot can also be considered on the premise that the weight ratio y of the edge cleaning assembly 2 to the fan assembly 4 is considered, and in this case, x can be set to be not equal to (1 / y).

[0051] Specifically, referring to Figure 1 The weight of the edge cleaning assembly 2 is 89.87g, and the distance L1 of the center of gravity of the edge cleaning assembly 2 to the first central axis is 104.1mm. The weight of the fan assembly 4 is 76g. The distance L2 of the center of gravity of the fan assembly 4 to the first central axis is 123.1mm, and in this case, x is 0.846 and y is 1.182.

[0052] Referring to Figure 1 The cleaning robot has a second central axis extending in the left-right direction thereof. The edge cleaning assembly 2 and the fan assembly 4 are both located on the front side of the second central axis in the front-rear direction of the cleaning robot, and in this case, the centers of gravity of the edge cleaning assembly 2 and the fan assembly 4 are arranged as close to the second central axis as possible to improve the balance of the cleaning robot in the front-rear direction.

[0053] Of course, in the front-rear direction of the cleaning robot, the distance of the fan assembly 4 to the second central axis and the distance of the edge cleaning assembly 2 to the second central axis can be set according to actual needs, for example, according to the weight of the structural member on the rear side of the second central axis of the cleaning robot, so that the cleaning robot remains balanced in the front-rear direction.

[0054] It should be noted that since the distances of the centers of gravity of the edge cleaning assembly 2 and the fan assembly 4 to the second central axis are different, the balance of the edge cleaning assembly 2 and the fan assembly 4 in the left-right direction of the cleaning robot can be considered as approximate balance, and of course, the edge cleaning assembly 2 and the fan assembly 4 are arranged as close to the second central axis as possible in the front-rear direction of the cleaning robot to improve the balance of the edge cleaning assembly 2 and the fan assembly 4 in the left-right direction of the cleaning robot.

[0055] Exemplarily, referring to Figure 1 In the front-rear direction of the cleaning robot, the distance L3 of the center of gravity of the edge cleaning assembly 2 to the second central axis is 65mm, and the distance L4 of the center of the fan assembly 4 to the second central axis is 82.86mm.

[0056] In some embodiments, the edge cleaning assembly can be configured to slide horizontally in the left-right direction of the cleaning robot, i.e. the edge cleaning assembly can be moved relative to the bottom shell of the robot in the left-right direction of the robot, so that the edge cleaning assembly can be moved outward to extend when edge cleaning is needed. When edge cleaning is not needed, the edge cleaning assembly can be moved inward to retract.

[0057] It can be understood that, since the edge cleaning assembly can slide as a whole, the distance from the center of gravity of the edge cleaning assembly to the second central axis is variable, and the distance is smaller than the distance from the center of gravity of the fan assembly to the first central axis when the edge cleaning assembly is in the retracted position, so that the cleaning robot can move linearly when the edge cleaning assembly extends for edge cleaning. When turning or obstacle climbing is needed, the edge cleaning assembly can be retracted, and the obstacle climbing of the cleaning robot can be predicted in advance by the sensing system on the cleaning robot, and the edge cleaning assembly can be controlled to retract to ensure the balance of the cleaning robot when turning or obstacle climbing.

[0058] For example, the driving structure can be a motor, a gear and a rack. The rack is arranged on the edge cleaning bracket, the motor is arranged on the body, the gear is connected to the output shaft of the motor, and the gear is engaged with the rack. The motor can drive the gear to rotate to drive the rack to move in the extension direction of the rack, so that the edge cleaning bracket can slide, and the edge cleaning mop can be switched between the extended position and the retracted position.

[0059] In some embodiments, referring to Figure 1 and Figure 2 In the left-right direction of the cleaning robot, the dust box 3 is arranged between the edge cleaning assembly 2 and the fan assembly 4.

[0060] It can be understood that, since the dust box 3 is a hollow structure and occupies a certain installation space, if the dust box 3 is arranged on one side in the left-right direction of the cleaning robot, the other side needs to be arranged with a cavity for balance, resulting in waste of space, or a counterweight or more components are arranged on the side where the dust box 3 is arranged for balance, so that the size of the cleaning robot in the left-right direction or the up-down direction is increased, which is not conducive to the miniaturization of the cleaning robot. Therefore, the dust box 3 is arranged between the edge cleaning assembly 2 and the fan assembly 4, so that one part of the dust box 3 is close to the edge side of the cleaning robot, and the other part is close to the side opposite to the edge side, which is conducive to the balance of the cleaning robot in the left-right direction.

[0061] It should be noted that the dust box 3 is partially located on the left side of the first central axis extending in the front-rear direction of the cleaning robot, and partially located on the right side of the first central axis extending in the front-rear direction of the cleaning robot.

[0062] Wherein, the part of the dust box 3 on the left side or the right side of the first central axis is the same or different, which can be set according to the distance from the center of gravity of the edge cleaning assembly 2 to the central axis and the distance from the center of gravity of the fan assembly 4 to the first central axis. For example, if the distance from the center of gravity of the edge cleaning assembly 2 to the first central axis is less than the distance from the center of gravity of the fan assembly 4 to the first central axis, then the volume of the part of the dust box 3 relatively close to the edge cleaning assembly 2 is relatively large, and the volume of the part of the dust box 3 relatively close to the fan assembly 4 is relatively small.

[0063] In some embodiments, referring to Figure 1 and Figure 3 The cleaning robot further comprises a body top shell 5 covering the body bottom shell 1, and the body top shell 5 has a circumferential part constituting the outer peripheral shell of the cleaning robot. The fan assembly 4 comprises a fan shell, and the shortest straight line distance between the fan shell and the circumferential part is 7-17 mm.

[0064] Understandably, the fan assembly 4 is arranged as close to the circumferential edge of the cleaning robot as possible to improve the balance of the cleaning robot in the left-right direction when the edge cleaning assembly 2 is arranged. However, since the fan assembly 4 is prone to vibration during operation, it is also necessary to consider that the fan assembly 4 cannot come into contact with the outer peripheral shell of the cleaning robot when vibrating, that is, to avoid driving the outer peripheral shell of the cleaning robot to vibrate when the fan assembly 4 vibrates. Therefore, a certain distance is maintained between the fan assembly 4 and the outer peripheral shell of the cleaning robot.

[0065] Exemplarily, the shortest straight line distance between the fan shell of the fan assembly 4 and the circumferential part is preferably 12 mm, so that the fan assembly 4 is as close to the circumferential edge of the cleaning robot as possible, and the fan assembly 4 and the outer peripheral shell maintain a proper distance to avoid contact between the fan assembly 4 and the outer peripheral shell of the cleaning robot when vibrating. Of course, the shortest straight line distance between the fan assembly 4 and the circumferential part can also be selected as 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, and other reasonable values.

[0066] In some embodiments, referring to Figures 4 to 7 The cleaning robot further comprises an air outlet structure 6 arranged on the body bottom shell 1, and the air outlet structure 6 has an air outlet channel 601 communicating with the air outlet of the fan assembly 4, and the air outlet channel 601 extends in the left-right direction of the cleaning robot.

[0067] Understandably, by setting the air outlet structure 6, the air outlet channel 601 of the air outlet structure 6 can be used as a sound attenuation cavity to attenuate the sound of the air discharged from the air outlet of the fan assembly 4, thereby reducing the noise of the cleaning robot during operation and improving the user experience.

[0068] Moreover, the air outlet channel 601 extends along the left-right direction of the cleaning robot, which makes the air outlet channel 601 as long as possible, thereby improving the sound attenuation effect. This is because the body bottom shell 1 is also provided with a roller brush and a main wiping member, both of which extend along the left-right direction of the cleaning robot. If the air outlet channel 601 extends along the front-rear direction of the cleaning robot, the length of the air outlet channel 601 will be affected by the roller brush and the main wiping member.

[0069] It should be noted that the air outlet channel 601 is as straight as possible to avoid any structure that may affect the normal flow of air in the air outlet channel 601, thereby avoiding poor air guiding or excessive air resistance. In addition, the air outlet of the fan assembly 4 and the air inlet of the air outlet channel 601 are connected by a soft rubber tube 14. In this case, the air outlet of the fan assembly 4 and / or the air inlet of the air outlet channel 601 can be provided with a connecting pipe, the soft rubber tube 14 and the connecting pipe are in interference fit, and the soft rubber tube 14 and the connecting pipe can be sealed by double-sided adhesive tape, foam, or the like to ensure the sealing performance. The material of the soft rubber tube 14 is silicone or rubber.

[0070] For example, in a specific implementation, the air outlet of the air outlet channel 601 is provided with a dust screen cover 63. By providing the dust screen cover 63, the garbage or other debris on the surface to be cleaned can be prevented from entering the air outlet channel 601, thereby affecting the air exhaust of the air outlet channel 601.

[0071] For example, in a specific implementation, referring to Figures 4 to 6 The air outlet of the air outlet channel 601 is directed towards the edge wiping member 21 of the edge cleaning assembly 2. Moreover, the air outlet channel 601 is provided with a heating structure 7, which can heat the air passing through the air outlet channel 601.

[0072] Understandably, since the air outlet of the air outlet channel 601 is directed towards the edge wiping member 21 of the edge cleaning assembly 2, when it is necessary to dry the edge wiping member 21, the heating structure 7 can be turned on to heat the air in the air outlet channel 601, thereby using the heated hot air to dry the edge wiping member 21.

[0073] The heating structure 7 can be a heating wire or a PTC heater, etc. In this case, the air outlet structure 6 is required to have good temperature resistance to avoid damage caused by heat. At the same time, a temperature control switch can be provided for the heating structure 7 to detect the temperature of the air outlet of the air outlet channel 601, so as to turn off the heating structure 7 when the temperature exceeds a set threshold, thereby preventing the temperature from being too high.

[0074] It should be noted that when the edge wiping piece 21 is dried, the cleaning robot can be located on the cleaning base station, at this time the edge wiping piece 21 is in a non-working state, that is, the edge wiping piece 21 does not contact the surface to be cleaned, at this time the hot air can be generated by the fan assembly 4 and the heating structure 7 to dry the edge wiping piece 21. When the edge wiping piece 21 is in a working state, the heating structure 7 does not work, at this time the air blown out of the air outlet 601 has a lower temperature and a poor drying effect on the edge wiping piece 21, which does not affect the normal work of the edge wiping piece 21.

[0075] Further, the air outlet of the air outlet channel 601 can be provided as a flat port to increase the speed of the air discharged from the air outlet of the air outlet channel 601, thereby increasing the flow speed of the hot air when the heating structure 7 works and improving the drying efficiency of the edge wiping piece 21.

[0076] Further, in the left-right direction of the cleaning robot, the heating structure 7 is relatively close to the air outlet of the air outlet channel 601. In this way, the air heated by the heating structure 7 can act on the edge wiping piece 21 as quickly as possible, thereby improving the drying efficiency and avoiding the loss of a large amount of heat in the flow process of the hot air, which reduces the drying efficiency of the edge wiping piece 21.

[0077] Optionally, referring to Figure 6 The air outlet channel 601 can further be provided with a sound attenuation structure 8, and the heating structure 7 is relatively close to the edge cleaning assembly 2 relative to the sound attenuation structure 8. In this way, the hot air heated by the heating structure 7 can avoid damaging the sound attenuation structure 8 when passing through the sound attenuation structure 8.

[0078] In addition, the distance between the sound attenuation structure 8 and the heating structure 7 is set according to actual needs to avoid damage to the sound attenuation structure 8 caused by the high temperature generated when the heating structure 7 works.

[0079] Referring to Figure 7 In this case, the air outlet structure 6 includes an upper shell 61 and a lower shell 62, and the upper shell 61 and the lower shell 62 are connected and surround to form the air outlet channel 601, which facilitates the installation of the sound attenuation structure 8 and / or the heating structure 7 in the air outlet channel 601. Of course, in other implementations, the air outlet structure 6 can also be integrally formed, at this time the sound attenuation structure 8 and the heating structure 7 can not be provided in the air outlet channel 601.

[0080] Understandably, the heating structure 7 and the sound attenuation structure 8 can be provided in the air outlet channel 601 at the same time, or only the heating structure 7 can be provided, or only the sound attenuation structure 8 can be provided, so that the selection is made according to actual needs.

[0081] Exemplarily, in a specific implementation, referring to Figures 8 to 13The edge cleaning assembly 2 is movably arranged on the bottom shell 1 of the robot body and has a wiping position and a lifting position in the up-down direction of the robot. When the edge cleaning assembly 2 is at the wiping position, the edge wiping member 21 of the edge cleaning assembly 2 is in contact with the surface to be cleaned, as shown in Figure 9 and Figure 10 When the edge cleaning assembly 2 is at the lifting position, the edge wiping member 21 is separated from the surface to be cleaned, and the air outlet of the air outlet channel 601 is opposite to the edge wiping member 21, as shown in Figure 12 and Figure 13 .

[0082] It can be understood that, by arranging the edge cleaning assembly 2 to be movable in the up-down direction of the robot and having a wiping position and a lifting position, and by arranging the edge cleaning assembly 2 to be separated from the surface to be cleaned when at the lifting position, and by arranging the air outlet of the air outlet channel 601 to be opposite to the edge wiping member 21 at this time, the air discharged through the air outlet channel 601 can be used to blow and dry the edge wiping member 21.

[0083] The edge cleaning assembly 2 can be moved in the up-down direction of the robot by a driving structure. The driving structure can be a motor, a gear and a rack. The motor is arranged on the bottom shell 1 of the robot body, the gear is connected to the output shaft of the motor and is engaged with the rack. The rack extends in the up-down direction of the robot and is slidably arranged on the bottom shell 1 of the robot body, and the rack is connected to the edge cleaning bracket 22 of the edge cleaning assembly 2. Thus, the rotation of the motor can drive the rack to move in the up-down direction of the robot through the gear, thereby achieving the up-down movement of the edge cleaning assembly 2.

[0084] It should be noted that the blowing and drying operation of the edge wiping member 21 can be performed during the operation of the robot. At this time, the edge cleaning assembly 2 can be arranged at the lifting position, and the edge wiping member 21 is not in contact with the surface to be cleaned, while the fan assembly 4 is normally operated, and the robot cleans the surface to be cleaned by the roller brush and the main wiping member. The blowing and drying operation of the edge wiping member 21 can also be performed when the robot enters the cleaning base station. At this time, the edge cleaning assembly 2 can be arranged at the lifting position, and the fan assembly 4 is operated, but at this time the robot is in the cleaning base station and does not clean the surface to be cleaned.

[0085] Further, as shown in Figure 9 and Figure 10 , the edge cleaning assembly 2 further comprises an edge cleaning bracket 22, and the edge wiping member 21 is arranged on the edge cleaning bracket 22. When the edge cleaning assembly 2 is at the wiping position, the air outlet of the air outlet channel 601 is opposite to the edge cleaning bracket 22, and the edge cleaning bracket 22 shields the edge wiping member 21 at this time, so that the air blown out of the air outlet of the air outlet channel 601 is prevented from blowing to the edge wiping member 21, and the edge wiping member 21 is ensured to be in a wet state and to operate normally.

[0086] Specifically, the edge wiping member 21 is selected as an edge track mop, and the edge cleaning support 22 is provided with a scraper capable of scraping dirt on the edge track mop during rotation of the edge track mop to clean the edge track mop. In the up-down direction of the cleaning robot, the edge track mop is located below the scraper, and when the edge cleaning assembly 2 is located at the wiping position, the air outlet of the air outlet channel 601 is opposite to the part of the edge cleaning support 22 provided with the scraper, and at this time, the air cannot be blown to the edge track mop due to the blocking of the edge cleaning support 22. When the edge cleaning assembly 2 is located at the lifting position, the part of the edge cleaning support 22 provided with the scraper is moved upward, so that the air outlet of the air outlet channel 601 is opposite to the part of the edge track mop at this time, so that the edge track mop can be dried.

[0087] Optionally, the air outlet channel 601 can further be provided with a heating structure 7 capable of heating the air passing through the air outlet channel 601. In this way, when it is necessary to dry the edge wiping member 21, the heating structure 7 can be turned on to heat the air in the air outlet channel 601, so that the heated hot air is used to dry the edge wiping member 21, thereby improving the drying efficiency of the edge wiping member 21.

[0088] The heating structure 7 can be selected as a heating wire or a PTC heater, and at this time, the air outlet structure 6 is required to have good temperature resistance to avoid damage of the air outlet structure 6 due to heating. Meanwhile, a temperature control switch can be provided for the heating structure 7 to detect the temperature of the air outlet of the air outlet channel 601 to turn off the heating structure 7 when the temperature exceeds the set threshold, thereby avoiding excessive temperature.

[0089] For example, in a specific implementation, the air outlet of the air outlet channel is directed to the edge wiping member of the edge cleaning assembly, and in the left-right direction of the cleaning robot, the air outlet channel is inclined downward from one end to the other end of the air outlet channel.

[0090] It can be understood that the air outlet channel is inclined downward from one end to the other end of the air outlet channel, so that the air outlet of the air outlet channel is lower than the air inlet of the air outlet channel in the up-down direction of the cleaning robot, and the air inlet of the air outlet channel is connected to the air outlet of the air outlet channel. In this way, when water splashed on the edge wiping member or the surface to be cleaned flows into the air outlet channel, it can flow out of the air outlet of the air outlet channel, avoiding the water in the air outlet channel flowing to the air outlet channel and causing short circuit of the air outlet channel, thereby improving the safety performance of the cleaning robot.

[0091] In some embodiments, with reference to Figures 14 to 16The cleaning robot further comprises a side-sweeping assembly 9 and a pump assembly 10 arranged on the bottom shell 1, the side-sweeping assembly 9 is arranged on the side of the bottom shell 1, and the pump assembly 10 and the fan assembly 4 are located on the same side in the left-right direction of the cleaning robot.

[0092] It is understandable that the side-sweeping assembly 9 is arranged on the side of the bottom shell 1, and the pump assembly 10 is arranged on the same side as the fan assembly 4, so as to balance in the left-right direction of the cleaning robot. The pump assembly 10 can be arranged to vacuum the sewage box (not shown in the figure) of the cleaning robot, so that the sewage scraped off by the main wiping member 12 enters the sewage box. It can also be arranged to vacuum the clean water box (not shown in the figure) of the cleaning robot, so that when the cleaning robot is located in the cleaning base station, the clean water tank of the cleaning base station enters the clean water box through the water supply column on the cleaning base station and the water inlet on the cleaning robot connected to the clean water box.

[0093] The pump assembly 10 can be provided with two to vacuum the clean water box and the sewage box respectively, or one can be provided to vacuum the clean water box and the sewage box through two air extraction branches. At this time, the pump assembly 10 can be selected as an air pump or a vacuum pump.

[0094] Further, the cleaning robot further comprises a valve assembly 11. The valve assembly 11 can be used to connect the pump assembly 10 to the sewage box and the clean water box respectively, for example, the valve assembly 11 comprises a first interface and two second interfaces, the first interface is connected to the air extraction port of the pump assembly 10, the two second interfaces are connected to the sewage box and the clean water box respectively, and the valve assembly 11 can selectively make the first interface and one of the second interfaces conductive.

[0095] Referring to Figure 15 and Figure 16 The cleaning robot further comprises a walking assembly 13 and a main wiping member 12 arranged on the bottom shell 1.

[0096] The walking assembly 13 comprises two drive wheels 131 arranged symmetrically in the left-right direction of the cleaning robot, and one of the drive wheels 131 is close to the side of the cleaning robot. The walking assembly 13 further comprises a driven wheel 132, the driven wheel 132 is located on the front side of the two drive wheels 131 in the front-back direction of the cleaning robot, and the driven wheel 132 is located between the two drive wheels 131 in the left-right direction of the cleaning robot. In this way, the stability of the cleaning robot during movement is improved, and the relative differential speed of the two drive wheels 131 can realize the steering of the cleaning robot.

[0097] The driven wheel 132 can be selected as a universal wheel, which is convenient for realizing the steering of the cleaning robot during movement.

[0098] In addition, the main wiping member 12 is located at the rear side of the walking assembly 13 in the front-rear direction of the cleaning robot, so that the surface to be cleaned can be cleaned by the main wiping member 12 when the cleaning robot moves. The main wiping member 12 can be selected as a track-type mop or a roller-type mop.

[0099] It should be noted that the edge cleaning assembly 2 is located between the main wiping member 12 and the two driving wheels 131 in the front-rear direction of the cleaning robot. The fan assembly 4 and the edge cleaning assembly 2 are respectively arranged adjacent to the two driving wheels 131, so as to make the centers of the fan assembly 4 and the edge cleaning assembly 2 close to the central axis of the cleaning robot extending in the left-right direction as much as possible, so as to improve the balance of the cleaning robot in the front-rear direction and the left-right direction.

[0100] It should be noted that in this document, relational terms such as "first" and "second", and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0101] The above description is merely one specific implementation of the application. Many modifications and other embodiments of the application set forth herein will come to mind to one skilled in the art to which the application pertains having the benefit of the teachings presented in the foregoing description. Therefore, it is to be understood that the application is not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Without intent to limit the scope of the application, examples of modifications and other embodiments of the application in addition to those of the specific embodiment described herein will be readily apparent to one skilled in the art from the teachings set forth in the foregoing description. Accordingly, the application is not to be restricted except as by the appended claims.

Claims

1. A cleaning robot comprising a robot body, an edge cleaning assembly, a dust box and a fan assembly, all arranged on the robot body, a dust collection channel being arranged on the robot body and communicating with the dust box, the fan assembly being configured to draw a vacuum on the dust box so that dust on a surface to be cleaned enters the dust box via the dust collection channel, the edge cleaning assembly being arranged on an edge side of the robot body, characterized in that, The fan assembly is arranged on the bottom shell of the cleaning robot on the side opposite to the edge cleaning assembly in the left-right direction of the cleaning robot, the cleaning robot has a first central axis extending in the front-rear direction of the cleaning robot, and the distance from the gravity center of the fan assembly to the first central axis is less than the distance from the gravity center of the edge cleaning assembly to the first central axis in the left-right direction of the cleaning robot.

2. The cleaning robot according to claim 1, wherein, The cleaning robot further comprises a top shell arranged on the bottom shell, and the top shell has a circumferential part constituting the outer circumferential shell of the cleaning robot. The fan assembly comprises a fan shell, and the shortest straight-line distance between the fan shell and the circumferential part is 7-17 mm.

3. The cleaning robot according to claim 1, wherein, In the left-right direction of the cleaning robot, the dust box is arranged between the edge cleaning assembly and the fan assembly.

4. The cleaning robot according to claim 1, wherein, The cleaning robot further comprises an air outlet structure arranged on the bottom shell, and the air outlet structure has an air outlet channel communicating with the air outlet of the fan assembly, and the air outlet channel extends in the left-right direction of the cleaning robot.

5. The cleaning robot according to claim 4, wherein, The edge cleaning assembly comprises an edge wiping member, and the air outlet of the air outlet channel faces the edge wiping member of the edge cleaning assembly.

6. The cleaning robot according to claim 5, wherein, The air outlet channel is provided with a heating structure configured to heat the air passing through the air outlet channel.

7. The cleaning robot according to claim 6, wherein, In the left-right direction of the cleaning robot, the heating structure is relatively close to the air outlet of the air outlet channel.

8. The cleaning robot according to claim 4, wherein, The edge cleaning assembly is movably arranged on the bottom shell and moves in the up-down direction of the cleaning robot to have a wiping position and a lifting position. In the wiping position, the edge wiping member of the edge cleaning assembly is in contact with the surface to be cleaned, and in the lifting position, the edge wiping member is separated from the surface to be cleaned, so that the air outlet of the air outlet channel faces part of the edge wiping member.

9. The cleaning robot according to claim 4, wherein, The air outlet of the air outlet channel faces the edge wiping member of the edge cleaning assembly. In the left-right direction of the cleaning robot, the air outlet channel is arranged downwardly from one end to the other end of the air outlet channel communicating with the fan assembly.

10. The cleaning robot of claim 1, wherein, The cleaning robot further comprises an edge sweeping assembly and a pump assembly arranged on the bottom shell, the edge sweeping assembly is arranged on the edge side of the bottom shell, and the pump assembly and the fan assembly are located on the same side in the left-right direction of the cleaning robot.

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