cleaning equipment

Abstract

The present application provides a cleaning device, which includes a main body and at least one running wheel, wherein the at least one running wheel is mounted on the main body, and the main body can move on the surface to be cleaned via the at least one running wheel. The cleaning device also includes a driving mechanism, a movable bracket, and a cleaning component, wherein the driving mechanism is mounted on the main body, and the movable bracket is movably connected to the bottom of the main body and is connected to the driving mechanism. The movable bracket reciprocates in a direction parallel to the surface to be cleaned under the driving action of the driving mechanism, and the cleaning component is detachably connected to the movable bracket. The driving mechanism can fully provide the power torque in the reciprocating motion direction of the movable bracket, and can effectively clean heavier solid or liquid stains on the ground. Moreover, the cleaning component can be easily disassembled and separated from the movable bracket, so that the cleaning device can get rid of the cleaning component and move to other modes of cleaning, and has better obstacle crossing capabilities.

Description

Technical Field

[0001] The present application relates to the field of cleaning equipment, and in particular to a cleaning equipment. Background Art

[0002] The cleaning structure of current cleaning equipment is relatively simple and the cleaning effect is relatively limited. For example, a sweeping and mopping robot only has a fixed mop at the bottom of the robot, and then the sweeping and mopping robot drives the mop to move to wipe the floor. However, for heavier solid stains or liquid substances, the above cleaning equipment has a low cleaning effect on the floor. Summary of the Invention

[0003] The embodiment of the present application provides a cleaning device to solve the technical problem that the cleaning device has a single cleaning structure and a limited cleaning effect.

[0004] An embodiment of the present application provides a cleaning device, which includes a main body and at least one walking wheel, wherein the at least one walking wheel is installed on the main body, and the main body can move on the surface to be cleaned through the at least one walking wheel. The cleaning device also includes a driving mechanism, a movable bracket and a cleaning assembly, wherein the driving mechanism is installed on the main body, the movable bracket is movably connected to the bottom of the main body and is connected to the driving mechanism, and the movable bracket reciprocates in a direction parallel to the surface to be cleaned under the driving action of the driving mechanism, and the cleaning assembly is detachably connected to the movable bracket.

[0005] Different from the prior art, the above-mentioned cleaning equipment is movably connected to the bottom of the main body through the movable bracket and connected to the driving mechanism, so that the driving mechanism can drive the movable bracket to reciprocate back and forth; and the cleaning component is detachably connected to the movable bracket, and the cleaning component can reciprocate back and forth with the movable bracket to reciprocate and clean the surface to be cleaned. The driving mechanism can fully provide the power torque in the reciprocating motion direction of the movable bracket, and can effectively clean heavier solid stains or liquid stains on the ground; and the cleaning component can be disassembled and separated from the movable bracket very conveniently, so that the cleaning equipment can get rid of the cleaning component and then perform other cleaning modes, and has better obstacle-crossing capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0007] Figure 1This is a schematic diagram of the longitudinal cross-sectional structure of a cleaning device provided in an embodiment of the present application. Figure 1 ;

[0008] Figure 2 This is a schematic diagram of the decomposition of some parts of a cleaning device provided in an embodiment of the present application. Figure 1 ;

[0009] Figure 3 This is a schematic diagram of the decomposition of some parts of a cleaning device provided in an embodiment of the present application. Figure 2 ;

[0010] Figure 4 This is a schematic diagram of the structure of a cleaning device provided in an embodiment of the present application. Figure 1 ;

[0011] Figure 5 This is a schematic diagram of the structure of a cleaning device provided in an embodiment of the present application. Figure 2 ;

[0012] Figure 6 This is a schematic diagram of the decomposition of some parts of a cleaning device provided in an embodiment of the present application. Figure 3 ;

[0013] Figure 7 This is a schematic diagram of the decomposition of some parts of a cleaning device provided in an embodiment of the present application. Figure 4 ;

[0014] Figure 8 This is a schematic diagram of the decomposition of some parts of a cleaning device provided in an embodiment of the present application. Figure 5 ;

[0015] Figure 9 This is a schematic diagram of the structure of a cleaning device provided in an embodiment of the present application. Figure 3 ;

[0016] Figure 10 yes Figure 9 A in the middle is an enlarged schematic diagram (assembly structure of the first transmission member and the drive shaft);

[0017] Figure 11 This is a schematic diagram of the structure of a cleaning device provided in an embodiment of the present application. Figure 4 ;

[0018] Figure 12 yes Figure 11 The enlarged schematic diagram of point B in the middle (the sequential assembly structure of the second transmission member, the first transmission member and the drive shaft);

[0019] Figure 13 This is a schematic diagram of the decomposition of some parts of a cleaning device provided by another embodiment. Figure 6 ;

[0020] Figure 14 This is a schematic diagram of the longitudinal cross-sectional structure of a cleaning device provided in an embodiment of the present application. Figure 2 ;

[0021] Figure 15 This is a schematic diagram of the longitudinal cross-sectional structure of a cleaning device provided in an embodiment of the present application. Figure 3 ;

[0022] Figure 16 This is a schematic diagram of the structure of a cleaning device provided in an embodiment of the present application. Figure 5 ;

[0023] Figure 17 yes Figure 15 Enlarged schematic diagram of point C in the middle (assembly structure of movable bracket, second transmission member, first transmission member and driving device);

[0024] Figure 18 yes Figure 16 Enlarged schematic diagram of point D in the middle (assembly structure of the limiter and the movable bracket);

[0025] Figure 19 This is an exploded schematic diagram of the partial structure of a cleaning device provided in an embodiment of the present application;

[0026] Figure 20 This is a schematic structural diagram of a movable bracket of a cleaning device provided in an embodiment of the present application;

[0027] Figure 21 This is a schematic structural diagram of a movable bracket and a cleaning component of a cleaning device provided in an embodiment of the present application;

[0028] Figure 22 This is a schematic diagram of the decomposition of some parts of a cleaning device provided in an embodiment of the present application. Figure 7 ;

[0029] Figure 23 This is a schematic diagram of the decomposition of some parts of a cleaning device provided in an embodiment of the present application. Figure 8 . DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] It should be noted that, if there is no conflict, the various features in the embodiments of the present application can be combined with each other and are all within the scope of protection of the present invention. In addition, although the functional modules are divided in the device schematic and the logical order is shown in the flow chart, in some cases, the steps shown or described can be performed in a different order than the module division in the device or the order in the flow chart. Furthermore, the words "first", "second", "third", etc. used in the present invention do not limit the data and execution order, but only distinguish between the same items or similar items with basically the same functions and effects.

[0032] See also Figures 1 to 3 , an embodiment of the present application provides a cleaning device 100, which includes a main body 10 and at least one walking wheel 60. The at least one walking wheel 60 is mounted on the main body 10, and the main body 10 can walk on the surface to be cleaned 70 through the at least one walking wheel 60. The cleaning device 100 also includes a driving component 20 and a cleaning component 30. The driving component 20 includes a driving mechanism 80 and a movable bracket 23. The driving mechanism 80 is mounted on the main body 10, and the movable bracket 23 is movably connected to the bottom of the main body 10 and is connected to the driving mechanism 80. The movable bracket 23 reciprocates in a direction parallel to the surface to be cleaned 70 under the driving action of the driving mechanism 80, and the cleaning component 30 is detachably connected to the movable bracket 23. The cleaning component 30 reciprocates back and forth with the movable bracket 23 to reciprocate and clean the surface to be cleaned 70.

[0033] The drive mechanism 80 includes a drive device 21 and at least one transmission member 22. The drive device 21 is mounted on the main body 10 and has a drive shaft 211 extending toward the bottom of the main body 10. The movable bracket 23 is movably connected to the bottom of the main body 10. The movable bracket 23 is spaced apart from the drive shaft 211, and the movable bracket 23 moves in a direction substantially perpendicular to the extension direction of the drive shaft 211. The at least one transmission member 22 is connected between the movable bracket 23 and the drive shaft 211. The drive shaft 211 of the drive device 21 drives the movable bracket 23 to reciprocate back and forth via the at least one transmission member 22. The cleaning assembly 30 is detachably connected to the movable bracket 23 so that the cleaning assembly 30 reciprocates back and forth with the movable bracket 23 to reciprocate and clean the surface 70 to be cleaned. The drive device 21 and the at least one transmission member 22 constitute the drive mechanism 80.

[0034] Different from the prior art, the above-mentioned cleaning device 100 is movably connected to the bottom of the main body 10 through the movable bracket 23, and is connected to the driving mechanism 80, so that the driving mechanism 80 can drive the movable bracket 23 to reciprocate back and forth through the at least one transmission member; and is detachably connected to the movable bracket 23 through the cleaning component 30. The cleaning component 30 can reciprocate back and forth with the movable bracket 23 to reciprocate and clean the surface to be cleaned. The driving mechanism 80 can fully provide the power torque in the reciprocating direction of the movable bracket 23, and can effectively clean heavier solid stains or liquid stains on the ground; and the cleaning component 30 can be disassembled and separated from the movable bracket 23 very conveniently, so that the cleaning device 100 can get rid of the cleaning component 30 to perform other modes of cleaning, and has better obstacle-crossing ability.

[0035] It is understandable that the cleaning device 100 can be a handheld cleaning device 100, for example, the cleaning device 100 can be any one of a handheld floor scrubber, a handheld floor washer, or a handheld window cleaning device; the cleaning device 100 can also be an automated cleaning device 100, for example, the cleaning device 100 can be any one of a sweeping robot, a sweeping and mopping robot, a mopping robot, or a floor washing robot. Of course, the cleaning device 100 is not limited to the above examples, and those skilled in the art can apply the solution of this application to a specific cleaning device 100 as needed. The specific embodiments of this application take the cleaning device 100 as an example of a sweeping and mopping robot.

[0036] In this embodiment, the cleaning device 100 is an integrated sweeping and mopping robot. The main body 10 is the main portion of the cleaning device 100. The main body 10 can be any shape, such as circular, rectangular, or D-shaped, without limitation. In an alternative embodiment, the main body 10 of the cleaning device 100 can also have other design structures, such as an integrally formed structure or a structure with separate left and right sides. The present invention does not limit the material, shape, and structure of the main body.

[0037] The main body 10 may include a chassis 13 and an upper cover assembly 15. The upper cover assembly 15 is detachably mounted on the chassis 13 to protect the various functional components inside the cleaning device 100 from damage caused by violent impacts or accidentally dripping liquids during use. The chassis 13 and / or the upper cover assembly 15 are used to carry and support the various functional components. The surface of the upper cover assembly 15 facing away from the chassis 13 forms an appearance surface, which can enhance the overall appearance of the cleaning device 100. Buttons can be provided on the appearance surface to facilitate the user to operate the cleaning device 100 through buttons. The inner cavity is formed between the chassis 13 and the upper cover assembly 15, and the inner cavity is used to provide arrangement space for the internal components of the cleaning device 100. The cleaning device 100 can arrange a vacuum pump, a circuit board, a ground detection sensor, a collision detection sensor, a wall sensor, etc. in the inner cavity.

[0038] In an embodiment of the present application, the cleaning device 100 includes a running mechanism 90 mounted on the chassis 13, the running mechanism 90 including two running wheels 60, at least one universal wheel 91, and a motor for driving the wheels to rotate, the two running wheels 60 and the at least one universal wheel 91 at least partially protrude from the bottom of the chassis 13, for example, under the action of the cleaning device 100's own weight, the two running wheels 60 can be partially hidden in the chassis 13. In an optional embodiment, the running mechanism 90 can also include any one of a triangular track wheel, a Mecanum wheel, etc. The running mechanism 90 may also not include the at least one running wheel 60.

[0039] The cleaning device 100 can be designed to autonomously plan a path on the ground, or can be designed to move on the ground in response to remote control commands. The cleaning device 100 can navigate using one or a combination of a gyroscope, an accelerometer, a camera, GPS positioning, and / or a laser radar. For example, the cleaning device 100 can be provided with a laser radar protruding from the top surface, which scans the surrounding environment to collect obstacle data, creates an environmental map based on the obstacle data, and can perform real-time positioning based on the environmental map to facilitate planning of the cleaning path.

[0040] The cleaning device 100 may include at least one middle sweeping brush, which may be arranged in a receiving groove opened at the bottom of the chassis 13. A dust suction port is opened in the receiving groove, and the dust suction port is connected to the dust collection box and the dust suction fan, so that when the middle sweeping brush rotates, the dust and garbage on the ground are stirred up, and the dust suction fan uses the suction force generated to suck the dust and garbage from the dust suction port into the dust collection box.

[0041] The cleaning device 100 includes a water tank. Liquid in the water tank can be delivered to the cleaning assembly 30 via a peristaltic pump and a conduit to wet the cleaning assembly 30. This allows the cleaning assembly 30 to wet the floor, facilitating the cleaning assembly 30 to remove dirt from the floor during reciprocating motion, thereby improving the cleaning effect. In other embodiments, the liquid in the water tank can also be transferred to the cleaning assembly 30 by gravity.

[0042] Please continue reading Figure 4 and Figure 5 , the main body 10 also includes a cleaning box 14 connected to the chassis 13, and the chassis 13 carries the cleaning box 14. The cleaning box 14 is a dust box, or a water tank, or a combination of a dust box and a water tank. There can be various forms of assembling the cleaning box 14 and the chassis 13. For example, the upper cover assembly 15 is formed with a mounting groove, and the cleaning box 14 is detachably mounted in the mounting groove, and the bottom surface of the chassis 13 forms the bottom surface of the main body 10. In other embodiments, the chassis 13 is provided with a mounting groove on the circumferential side, so that the chassis 13 is formed with a notch on the circumferential side, and the cleaning box 14 is detachably mounted in the mounting groove, and the bottom surface of the cleaning box 14 and the bottom surface of the chassis 13 constitute the bottom surface of the main body 10.

[0043] The drive device 21 is mounted on the chassis 13 or the cleaning box 14. In this embodiment, the drive device 21 is mounted on the chassis 13. The drive device 21 is installed in the inner cavity between the chassis 13 and the upper cover assembly 15. In other embodiments, the drive device 21 can also be mounted on the cleaning box 14.

[0044] Please continue reading Figure 6 and Figure 7 In this embodiment, the driving device 21 may include a driving motor 201 and a reduction mechanism 202. The reduction mechanism 202 is provided with an input shaft and the driving shaft 211. The driving motor 201 is fixed to the main body 10, and drives the input shaft connected to the reduction mechanism 202 to transmit power to the reduction mechanism 202 through the input shaft, thereby reducing the speed and driving the driving shaft 211 to rotate, so as to output a larger power torque to the movable bracket 23, thereby increasing the force of the cleaning component 30 in wiping the floor. In other embodiments, the driving device 21 includes a driving motor 201, and the output end of the driving motor 201 forms the driving shaft 211, and the driving motor 201 directly outputs power through the driving shaft 211.

[0045] The extension direction of the driving shaft 211 is substantially parallel to the height direction of the main body 10 , and the driving shaft 211 extends to a position close to the bottom surface of the main body 10 .

[0046] The movable bracket 23 is roughly in the shape of a flat plate, and the movable bracket 23 is movably connected to the bottom of the main body 10. The movable direction of the movable bracket 23 is roughly parallel to the surface to be cleaned 70. In this embodiment, the reciprocating direction of the movable bracket 23 is perpendicular to the relative direction of the two running wheels 60, that is, the movable bracket 23 can reciprocate in the forward direction of the cleaning device 100. In other embodiments, the reciprocating direction of the movable bracket 23 can also be parallel to the relative direction of the two running wheels 60, or the reciprocating direction of the movable bracket 23 can also be set at an angle to the relative direction of the two running wheels 60.

[0047] Please continue reading Figure 6 and Figure 7 In this embodiment, the movable bracket 23 can be slidably connected to the bottom of the main body 10 to achieve the movable connection of the movable bracket 23 to the bottom of the main body 10. The movable bracket 23 is provided with at least one slide groove 232, and the main body 10 is provided with at least one guide slider 12 protruding from the bottom. The at least one guide slider 12 is respectively slidably fitted in the at least one slide groove 232. The slide groove 232 is a long strip-shaped slide groove, and the extension length of the slide groove 232 is greater than or equal to the movement stroke of the movable bracket 23. In this embodiment, the movable bracket 23 is provided with a first slide groove 2321, a second slide groove 2322, and a third slide groove 2323. The first slide groove 2321 and the second slide groove 2322 are symmetrically arranged on the left and right sides of the movable bracket 23, respectively, and the third slide groove 2323 is arranged in the middle of the movable bracket 23. The third slide groove 2323, the first slide groove 2321, and the second slide groove 2322 are roughly triangularly distributed. The at least one guide slider 12 includes a first guide slider 121, a second guide slider 122, and a third guide slider 123. The first guide slider 121 slidably cooperates with the first slide groove 2321, the second guide slider 122 slidably cooperates with the second slide groove 2322, and the third guide slider 123 slidably cooperates with the third slide groove 2323, thereby providing a smooth sliding guide for the movable bracket 23, preventing the reciprocating motion of the movable bracket 23 from being hindered by external obstacles and causing violent shaking, thereby preventing the cleaning device 100 from vibrating violently during automatic movement.

[0048] The number of the first chutes 2321 may be one or more, the number of the second chutes 2322 may be one or more, the number of the third chutes 2323 may be one or more, the number of the first guide blocks 121 is the same as the number of the first chutes 2321, the number of the second guide blocks 122 is the same as the number of the second chutes 2322, and the number of the third guide blocks 123 is the same as the number of the third chutes 2323. In other embodiments, the movable bracket 23 may not be provided with the third chutes 2323, and the main body 10 may not be provided with the third guide block 123.

[0049] In other embodiments, at least one slide groove 232 is provided at the bottom of the main body 10 , and the movable bracket 23 is provided with at least one guide slider 12 , and the at least one guide slider 12 is slidably engaged with the at least one slide groove 232 .

[0050] In other embodiments, a guide rail structure is provided at the bottom of the main body 10 , and the movable bracket 23 is slidably matched with the guide rail structure, so that the movable bracket 23 is movably connected to the bottom of the main body 10 .

[0051] In other embodiments, multiple elastic members may be provided between the movable bracket 23 and the bottom of the main body 10 to elastically connect the movable bracket 23 and the main body 10, thereby enabling the movable bracket 23 to be movably connected to the bottom of the main body 10. The elastic member may be any one or a combination of a spring, a rubber member, or a silicone member.

[0052] Please continue reading Figure 6 and Figure 7 The cleaning assembly 30 includes a flexible cleaning member 32. The flexible cleaning member 32 can be directly or indirectly attached to the side of the movable bracket 23 away from the main body 10 by means of Velcro, a hook, or a snap. The flexible cleaning member 32 can reciprocate with the movable bracket 23. The flexible cleaning member 32 is deployed along the surface of the bottom of the movable bracket 23 away from the main body 10, and the flexible cleaning member 32 can fit the surface to be cleaned 70. The flexible cleaning member 32 covers a larger area of the surface to be cleaned, which is conducive to improving the cleaning effect. The material of the flexible cleaning member 32 can be one or a composite of fiber, cotton, or collodion. The flexible cleaning member 32 can be a single-layer structure or a multi-layer composite structure. Those skilled in the art can set it according to actual needs.

[0053] Please continue reading Figures 7 to 12In this embodiment, the at least one transmission member 22 includes a first transmission member 221 and a second transmission member 222, the first transmission member 221 is fixedly connected to the drive shaft 211, and the second transmission member 222 is provided with a first connection portion 224 and a second connection portion 225, the first connection portion 224 is rotatably connected to the first transmission member 221, and the center distance between the first connection portion 224 and the drive shaft 211 in a direction perpendicular to the drive shaft 211 is a first distance L1, the second connection portion 225 is rotatably connected to the movable bracket 23, and the center distance between the second connection portion 225 and the first connection portion 224 in a direction perpendicular to the drive shaft 211 is a second distance L2, the first distance L1 and the second distance L2 are both not zero, and the second distance L2 is greater than or equal to the first distance L1.

[0054] Among them, the center distance between the first connecting part 224 and the driving shaft 211 in the direction perpendicular to the driving shaft 211 is the distance between the rotation center of the first connecting part 224 and the center of the driving shaft 211 in the direction perpendicular to the driving shaft 211; the center distance between the second connecting part 225 and the first connecting part 224 in the direction perpendicular to the driving shaft 211 is the distance between the rotation center of the second connecting part 225 and the rotation center of the first connecting part 224 in the direction perpendicular to the driving shaft 211.

[0055] The second connecting portion 225 can perform reciprocating linear motion with the movable bracket 23. The vertical distance from the center of the drive shaft 211 to the motion trajectory of the second connecting portion 225 is D, wherein the vertical distance D satisfies D≤L2-L1, so that the first transmission member 221, the second transmission member 222, the movable bracket 23 and the main body 10 can form a crank slider mechanism, wherein the first transmission member 221 is equivalent to a crank, and the first transmission member 221 can rotate 360° under the drive of the driving device 21; the second transmission member 222 is equivalent to a connecting rod, and the second transmission member 222 serves to connect the second transmission member 222 and the movable bracket 23; since the movable bracket 23 is slidably connected to the bottom of the main body 10, the movable bracket 23 is equivalent to a sliding member that can slide back and forth at the bottom of the main body 10; the main body 10 is equivalent to a fixed frame, and the main body 10 can serve to stably connect the first transmission member 221 and the movable bracket 23.

[0056] The first transmission member 221 is driven to rotate by the drive shaft 211 of the drive device 21. The first transmission member 221 can transmit the rotational torque to the second transmission member 222, thereby driving the movable bracket 23 to slide back and forth at the bottom of the main body 10. By the first connecting portion 224 of the second transmission member 222 being rotationally connected to the first transmission member 221, and the second connecting portion 225 of the second transmission member 222 being rotationally connected to the movable bracket 23, the first transmission member 221 can receive the rotational torque, which is then converted by the second transmission member 222 into a driving torque for the movable bracket 23. Because the second transmission member 222 is rotationally connected to the first transmission member 221 and the movable bracket 23, the first transmission member 221, the second transmission member 222, and the movable bracket 23 form a crank-connecting rod slider mechanism. There is no sliding friction loss between the second transmission member 222, the first transmission member 221, and the movable bracket 23, which helps to prevent the movable bracket 23 from getting stuck or shaking violently during reciprocating motion.

[0057] The first connecting portion 224 of the second transmission member 222 can be rotatably connected to the first transmission member 221 via a bearing, and the second connecting portion 225 of the second transmission member 222 can be rotatably connected to the movable bracket 23 via a bearing to achieve smooth rotation and reduce rotational friction. Of course, in other embodiments, the above-mentioned bearing structure can also be eliminated.

[0058] See also Figure 13 In other embodiments, the at least one transmission member 22 includes a transmission member 101, and the transmission member 101 is provided with a first connecting portion 102 and a second connecting portion 103. The first connecting portion 102 is fixedly connected to the drive shaft 211, and the second connecting portion 103 is slidably connected to the movable bracket 23. The second connecting portion 103 and the movable bracket 23 are approximately located on the same plane, and the sliding direction of the second connecting portion 103 is perpendicular to the sliding direction of the movable bracket 23. The second connecting portion 103 is spaced apart from the center of the drive shaft 211 in a direction perpendicular to the extension of the drive shaft 211, that is, the second connecting portion 103 is offset from the rotation center of the transmission member 101. The first connecting portion 102 may include an axial hole structure that cooperates with the drive shaft 211, and the second connecting portion 103 may include a slider structure that cooperates with the sliding groove on the movable bracket 23.

[0059] The driving shaft 211 of the driving device 21 can drive the transmission member 101 to rotate. During the rotation process, the transmission member 101 can push the movable bracket 23 to perform reciprocating linear motion through the eccentrically arranged second connecting portion 225.

[0060] See also Figure 14 Furthermore, the main body 10 is provided with a groove 11 at the bottom, the drive shaft 211 extends into the groove 11, the at least one transmission member 22 is at least partially accommodated in the groove 11, and the movable bracket 23 is provided to cover the groove 11 of the main body 10 and the at least one transmission member 22. In this embodiment, the at least one transmission member 22 is located at the bottom of the main body 10, and the groove 11 provides space for the at least one transmission member 22 to move, thereby preventing the at least one transmission member 22 from being installed inside the main body 10 and increasing the overall height of the cleaning device 100. The movable bracket 23 covers the groove 11 of the main body 10 and the at least one transmission member 22 to conceal the groove 11 of the main body 10 and the at least one transmission member 22, preventing external dust, hair, or large particles of garbage from entering the groove 11 and obstructing the at least one transmission member 22, and maintaining a simple appearance of the cleaning device 100.

[0061] See also Figure 1 and Figure 15 Furthermore, the movable bracket 23 is spaced apart from the surface to be cleaned 70, and the distance e between the movable bracket 23 and the surface to be cleaned 70 satisfies a preset distance threshold. Thus, when the cleaning assembly 30 is detached from the movable bracket 23, the movable bracket 23 can maintain a larger distance from the surface to be cleaned 70, preventing the movable bracket 23 from obstructing the cleaning device 100 from crossing obstacles on the ground, thereby improving the obstacle-crossing capability of the cleaning device 100. Persons skilled in the art may adjust the specific value of the preset distance threshold based on actual obstacle-crossing needs. For example, the preset distance threshold may be 4 mm to 8 mm, or may be 4 mm, 4.5 mm, 5 mm, 5.5 mm, or 6 mm, etc.

[0062] See also Figure 7 、 Figure 16 and Figure 18 Furthermore, the cleaning device 100 further includes a limiting assembly 50 connected to the bottom of the main body 10 and constraining the movable bracket 23 to a predetermined position such that the distance e between the movable bracket 23 and the surface to be cleaned 70 meets a predetermined distance threshold. The limiting assembly 50 does not affect the reciprocating motion of the movable bracket 23 in a direction perpendicular to the drive shaft 211.

[0063] In this embodiment, the limiting assembly 50 includes at least one limiting member 51, each of which is locked to the at least one guide slide 12. Each limiting member 51 has a limiting portion 52 located in the slide groove 232. The limiting portion 52 is used to abut against the side of the movable bracket 23 away from the main body 10 to limit the separation of the movable bracket 23 from the at least one guide slide 12 and to restrict the movable bracket 23 to a preset position so that the distance between the movable bracket 23 and the surface to be cleaned 70 meets a preset distance threshold.

[0064] The slide groove 232 of the movable bracket 23 includes a first portion 236 and a second portion 237 connected to the first portion 236. Both the first portion 236 and the second portion 237 are strip-shaped grooves that extend along the length of the slide groove 232. The first portion 236 accommodates the guide slider 12, allowing the guide slider 12 to slide in engagement with the first portion 236 of the slide groove. The limiting member 51 includes a connecting rod 53 and a limiting portion 52 fixedly connected to the connecting rod 53. One end of the connecting rod 53 is connected to the guide slider 12 of the body 10. The limiting portion 52 is connected to the end of the connecting rod 53 away from the guide slider 12. The cross-sectional dimensions of the limiting portion 52 are larger than the cross-sectional dimensions of the connecting rod 53 and also larger than the cross-sectional dimensions of the guide slider. The second portion 237 has a stepped surface facing away from the bottom of the main body 10 . The limiting portion 52 is received in the second portion 237 of the sliding groove 232 and contacts the stepped surface to limit the movable bracket 23 .

[0065] By limiting the separation of the movable bracket 23 from the at least one guide slider 12 by the at least one limiting member 51, the movable bracket 23 can be prevented from detaching from the guide slider 12 and causing malfunction. The limiting member 51 can be a screw, a rivet, or other limiting structural member, etc., which is not limited here. The number of the limiting members 51 can be determined according to the number of the guide sliders 12. For example, one or more limiting members 51 can be fixed on each of the guide sliders 12. In some embodiments, the at least one limiting member 51 can be fixed to the main body 10 by a non-detachable method such as glue, thereby preventing the user from removing the limiting member 51 by themselves, or preventing the vibration of the movable bracket 23 from causing the at least one limiting member 51 to loosen.

[0066] By ensuring that the distance e between the movable bracket 23 and the surface to be cleaned 70 meets the preset distance threshold, it is beneficial to improve the obstacle-crossing ability of the cleaning device 100: when the cleaning component 30 is disassembled from the movable bracket 23, due to the action of the limiting component 50, the movable bracket 23 cannot be close to the ground under the action of gravity, and the movable bracket 23 and the surface to be cleaned 70 still maintain a large distance, so that when the cleaning device 100 crosses the obstacle, the movable bracket 23 is not easily stuck on the obstacle; when the cleaning component 30 is installed on the side of the movable bracket 23 close to the surface to be cleaned 70, the movable bracket 23 can drive the cleaning component 30 to reciprocate relative to the surface to be cleaned 70, thereby performing the floor mopping cleaning task.

[0067] The preset distance threshold is greater than half of the shortest distance between the bottom surface of the main body 10 and the surface to be cleaned 70. In some embodiments, the minimum distance between the bottom surface of the main body 10 and the surface to be cleaned 70 is close to 10 mm, and the preset distance threshold may be greater than 5 mm. For example, the preset distance threshold may be 5.1 mm, 5.4 mm, 5.7 mm, 6.0 mm, or greater. Of course, in other embodiments, the minimum distance between the bottom surface of the main body 10 and the surface to be cleaned 70 may also be other values, and those skilled in the art may set it according to actual needs.

[0068] In other embodiments, the limiting member 51 may also be a guide rail structure arranged at the bottom of the main body 10, and the movable bracket 23 slides in cooperation with the above-mentioned guide rail structure. The above-mentioned guide rail structure can limit the movable bracket 23, restricting the movable bracket 23 from moving away from the bottom of the main body 10, and preventing the movable bracket 23 from sinking to the surface to be cleaned 70 under the action of gravity.

[0069] See also Figure 15 、 Figure 17 、 Figure 19 and Figure 20 Furthermore, the first connecting portion 224 and the second connecting portion 225 are arranged in sequence in a direction parallel to the driving shaft 211, and the first connecting portion 224 abuts against the first transmission member 221 on the side away from the second connecting portion 225, and the second connecting portion 225 abuts against the movable bracket 23 on the side away from the first connecting portion 224.

[0070] In this embodiment, the first connecting portion 224 and the second connecting portion 225 are arranged in sequence in a direction parallel to the driving shaft 211, so that the first connecting portion 224 and the second connecting portion 225 form a vertical stacking structure, which can firmly resist the reverse force of the movable bracket 23 caused by ground obstacles, so that the movable bracket 23 is more stable during reciprocating motion.

[0071] In this embodiment, the movable bracket 23 is provided with a first axial hole 231 on one side near the bottom of the main body 10. The first axial hole 231 extends parallel to the direction of extension of the drive shaft 211. The second connecting portion 225 includes a protruding shaft 227, through which the second connecting portion 225 rotates with the first axial hole 231. The protruding shaft 227 can rotate with the first axial hole 231 via a bearing. The bearing can be any of a variety of bearing types, such as a sliding bearing, a spherical plain bearing, a deep groove ball bearing, or a self-aligning ball bearing. In other embodiments, the protruding shaft 227 and the first axial hole 231 have a clearance fit, and lubricating oil can be added to the gap between the protruding shaft 227 and the first axial hole 231 to reduce rotational friction. In other embodiments, the first axial hole 231 is provided in the first connecting portion 224, and the protruding shaft 227 is provided in the movable bracket 23.

[0072] Since the second transmission member 222 is rotatably connected to the first transmission member 221 and the movable bracket 23, the first transmission member 221, the second transmission member 222 and the movable bracket 23 form a crank-connecting rod slider mechanism, and the assembly precision of the second transmission member 222, the first transmission member 221 and the movable bracket 23 is high, and the movable bracket 23 can be stably maintained in the horizontal direction, which is beneficial to avoid the movable bracket 23 from getting stuck or shaking violently during reciprocating motion; there is no sliding friction loss between the second transmission member 222 and the first transmission member 221 and the movable bracket 23, which is beneficial to avoid the movable bracket 23 from getting stuck or shaking violently during reciprocating motion.

[0073] See also Figure 15 、 Figure 17 、 Figure 19 and Figure 20 Furthermore, the first connecting portion 224 and the first transmission member 221 are at least overlapped in the direction parallel to the extension of the drive shaft 211, and the second connecting portion 225 and the movable bracket 23 are at least partially overlapped in the direction parallel to the extension of the drive shaft 211.

[0074] In this embodiment, the vertical stacking structure composed of the first connecting portion 224 and the second connecting portion 225 forms the main body 10 of the second transmission member 222 , and the second transmission member 222 occupies a certain height dimension in a direction parallel to the extension of the drive shaft 211 . Since the bottom of the main body 10 needs to maintain a relatively small height (usually 9 mm to 10 mm) from the surface to be cleaned 70, in order to avoid the second transmission member 222 occupying too much space in the extension direction parallel to the drive shaft 211, resulting in insufficient installation space for the movable bracket 23 and the cleaning assembly 30, the second connecting portion 225 of the second transmission member 222 and the movable bracket 23 are at least partially overlapped in the extension direction parallel to the drive shaft 211, and the first connecting portion 224 of the second transmission member 222 and the first transmission member 221 are at least partially overlapped in the extension direction parallel to the drive shaft 211. The height of the assembly structure of the first transmission member 221, the second transmission member 222 and the movable bracket 23 in the direction parallel to the drive shaft 211 can be compressed, thereby realizing the installation of the first transmission member 221 and the second transmission member 222 in the narrow space between the movable bracket 23 and the bottom of the main body 10, so that a small movable gap can be maintained between the movable bracket 23 and the bottom of the main body 10.

[0075] In this embodiment, the convex shaft 227 of the second connecting portion 225 is rotatably engaged with the first axial hole 231 of the movable bracket 23, so that the second connecting portion 225 and the movable bracket 23 are at least partially overlapped in the extension direction parallel to the drive shaft 211; the first transmission member 221 is rotatably engaged with the second axial hole 228 of the first connecting portion 224, so that the first connecting portion 224 of the second transmission member 222 and the first transmission member 221 are at least partially overlapped in the extension direction parallel to the drive shaft 211.

[0076] It can be seen that the first transmission member 221, the second transmission member 222 and the movable bracket 23 are nested in sequence in the extension direction parallel to the drive shaft 211, so that the overall height of the three is small in the extension direction parallel to the drive shaft 211, the structure is compact and the volume is small, and it can effectively resist disturbances and impacts in the extension direction perpendicular to the drive shaft 211, which is beneficial to reducing losses and improving service life, so that the movable bracket 23 is more stable during reciprocating motion.

[0077] See also Figure 15 、 Figure 17 、 Figure 19 and Figure 20Furthermore, the first connecting portion 224 includes a rotating body 226, which is connected to the end of the convex shaft 227 away from the movable bracket 23, and the surface of the rotating body 226 away from the convex shaft 227 is recessed to form a second shaft hole 228, and the extension direction of the second shaft hole 228 is arranged parallel to the extension direction of the driving shaft 211, and the first transmission member 221 is at least partially accommodated in the second shaft hole 228 and rotates with the second shaft hole 228.

[0078] In this embodiment, the first transmission member 221 is a circular wheel. The first transmission member 221 is completely housed in the second shaft hole 228. The first transmission member 221 can be rotatably engaged with the second shaft hole 228 via a bearing, thereby minimizing the assembly height and assembly volume of the first transmission member 221 and the second transmission member 222, and achieving a high degree of mating accuracy. The first transmission member 221 is provided with an eccentric hole 223 that is positioned and engaged with the drive shaft 211. That is, the center of the first transmission member 221 is spaced apart from the axis of the drive shaft 211. The drive shaft 211 can drive the first connecting portion 224 of the second transmission member 222 to deflect via the first transmission member 221, thereby transmitting torque to the second connecting portion 225 of the second transmission member 222, thereby driving the movable bracket 23 to reciprocate.

[0079] See also Figure 15 、 Figure 17 、 Figure 19 and Figure 20 Furthermore, the orthographic projection of the first connecting portion 224 on the movable bracket 23 overlaps the orthographic projection of the second connecting portion 225 on the movable bracket 23, thereby reducing the structural dimensions of the second transmission member 222 and improving structural compactness. The first connecting portion 224 and the second connecting portion 225 are both approximately circular in shape, and the cross-sectional area of the first connecting portion 224 is greater than the cross-sectional area of the second connecting portion 225.

[0080] See also Figure 15 、 Figure 17 、 Figure 19 and Figure 20 Furthermore, the orthographic projection of the first connecting portion 224 on the bottom of the main body 10 overlaps the orthographic projection of the first transmission member 221 on the bottom of the main body 10, making the overall structure of the second transmission member 222 and the first transmission member 221 smaller in size, which is conducive to improving structural compactness. The first transmission member 221 is generally circular, and its cross-sectional area is smaller than that of the first connecting portion 224.

[0081] See also Figure 15、 Figure 17 and Figure 18 Furthermore, the second connecting portion 225 is protruded relative to the bottom surface of the main body 10 to support the movable bracket 23, so that a movable gap is reserved between the movable bracket 23 and the main body 10, and the movable bracket 23 can be "suspended" at the bottom of the main body 10, thereby reducing or even eliminating the friction resistance and friction noise between the movable bracket 23 and the main body 10, which is conducive to improving user experience.

[0082] See also Figure 15 、 Figure 17 、 Figure 18 and Figure 20 Furthermore, a movable gap is reserved between the movable bracket 23 and the main body 10, and the cleaning device 100 includes at least one roller 40, which is rotatably connected to the movable bracket 23, and the at least one roller 40 is partially located in the movable gap and rolls against the side of the main body 10 close to the movable bracket 23, or the at least one roller 40 is rotatably connected to the bottom of the main body 10, and the at least one roller 40 is partially located in the movable gap and rolls against the side of the movable bracket 23 close to the main body 10.

[0083] In this embodiment, the movable bracket 23 is provided with a plurality of first roller grooves on a side near the bottom of the main body 10. The plurality of first roller grooves are arranged in a straight line at a first preset position on the movable bracket 23, and the arrangement direction of the plurality of first roller grooves is mutually perpendicular to the reciprocating motion direction of the movable bracket 23. The plurality of first roller grooves may include two or more first roller grooves. The at least one roller 40 includes a plurality of first rollers 41, each of which is mounted within the plurality of first roller grooves. The plurality of first rollers 41 are rotatably connected to the movable bracket 23 and roll against the bottom surface of the main body 10. The plurality of first rollers 41 provide support for the movable bracket 23 at the first preset position, allowing the movable bracket 23 to maintain a movable clearance with the bottom surface of the main body 10. When the movable bracket 23 reciprocates relative to the bottom surface of the main body 10, the plurality of first rollers 41 can follow the movement of the movable bracket 23 and roll along the bottom surface of the main body 10. In other embodiments, the at least one roller 40 is rotatably connected to the bottom of the main body 10 .

[0084] In some embodiments, the movable bracket 23 is further provided with a plurality of second roller grooves on one side of the bottom of the main body 10. The plurality of second roller grooves are arranged in a straight line at the second preset position of the movable bracket 23. The arrangement direction of the plurality of second roller grooves is perpendicular to the reciprocating motion direction of the movable bracket 23. The second preset position and the first preset position are spaced apart on the reciprocating motion of the movable bracket 23. The plurality of second roller grooves may include two or more second roller grooves. The at least one roller 40 also includes a plurality of second rollers 42, which are rotatably connected to the movable bracket 23, and the plurality of second rollers 42 roll against the bottom surface of the main body 10. The plurality of second rollers 42 provide support for the movable bracket 23 at the second preset position, so that the movable bracket 23 maintains a uniform movable gap with the bottom of the main body 10 in both the front and rear directions. When the movable bracket 23 reciprocates relative to the bottom of the main body 10 , the plurality of second rollers 42 can follow the movement of the movable bracket 23 and roll along the bottom surface of the main body 10 .

[0085] See also Figure 1 、 Figure 21 and Figure 22 Furthermore, the cleaning assembly 30 and the movable bracket 23 are arranged to at least partially overlap in a direction perpendicular to the surface to be cleaned 70.

[0086] In this embodiment, the cleaning assembly 30 includes a support plate 31 and a flexible cleaning member 32. The support plate 31 is detachably connected to the movable bracket 23. The support plate 31 is superimposed on the side of the movable bracket 23 facing away from the main body 10, and the flexible cleaning member 32 is detachably connected to the side of the support plate 31 facing away from the movable bracket 23. The support plate 31 is generally flat and can be snap-fitted to the movable bracket 23. The support plate 31 is provided with two oppositely arranged locking parts 311, and the two locking parts 311 are respectively engaged with the two ends of the movable bracket 23. A movably set operating part 312 can also be provided on the support plate 31, and the operating part 312 is connected to the two locking parts 311. By operating the operating part 312, the two locking parts 311 can be engaged with or separated from the movable bracket 23, thereby facilitating the disassembly and assembly of the cleaning component 30, wherein the operating part 312 can be linked with the two locking parts 311 through a connecting rod mechanism, or the operating part 312 and the locking part 311 are integrally arranged; the flexible cleaning member 32 can refer to the previous description and will not be repeated here.

[0087] In some embodiments, the cleaning assembly 30 can be arranged to completely cover the movable bracket 23. On the one hand, this can increase the deployment area of the cleaning assembly 30, provide a large-area cleaning effect, and improve cleaning efficiency. On the other hand, the movable bracket 23 does not need to contact the surface to be cleaned 70, which can avoid rigid collision between the movable bracket 23 and the surface to be cleaned 70, thereby preventing the movable bracket 23 from being damaged by impact. Of course, in other embodiments, the cleaning assembly 30 can also be arranged to partially cover the movable bracket 23.

[0088] In other embodiments, the cleaning assembly 30 includes a flexible cleaning member 32 , and the flexible cleaning member 32 can be directly attached to the side of the movable bracket 23 away from the main body 10 by means of Velcro, hooks, or buckles.

[0089] Furthermore, the thickness of the cleaning component 30 is less than or equal to the distance between the movable bracket 23 and the surface to be cleaned 70, and the cleaning device 100 includes at least one elastic member, which is elastically arranged between the cleaning component 30 and the movable bracket 23 / the main body 10 to provide elastic force for the cleaning component 30 to fit the surface to be cleaned 70.

[0090] In this embodiment, the thickness of the whole formed by the support plate 31 and the flexible cleaning member 32 can be less than the distance between the movable bracket 23 and the surface to be cleaned 70. Under the gravity of the support plate 31, the flexible cleaning member 32 can be attached to the ground. In order to increase the fit between the flexible cleaning member 32 and the ground, an elastic member can be provided between the support plate 31 and the bottom of the main body 10, or an elastic member can be provided between the support plate 31 and the bottom of the movable bracket 23. The elastic member can be any one of a spring button, a spring, a rubber member, a silicone member, a plastic shrapnel, or a metal shrapnel. In other embodiments, the thickness of the whole formed by the support plate 31 and the flexible cleaning member 32 can be equal to the distance between the movable bracket 23 and the surface to be cleaned 70.

[0091] See also Figure 1 、 Figure 21 and Figure 22 Furthermore, the main body 10 is provided with a first bottom surface 81 and a second bottom surface 82 adjacent to the first bottom surface 81 on the side close to the surface 70 to be cleaned, and there is a step difference between the first bottom surface 81 and the second bottom surface 82, so that the distance between the first bottom surface 81 and the surface to be cleaned 70 is smaller than the distance between the second bottom surface 82 and the surface to be cleaned 70, and the at least one walking wheel 60 is extended out of the first bottom surface 81, and the movable bracket 23 is installed on the second bottom surface 82.

[0092] Since the movable bracket 23 needs to maintain a large distance from the surface to be cleaned 70 to improve the obstacle-crossing ability of the cleaning device 100, the movable bracket 23 needs to be set at a larger height from the surface to be cleaned 70. However, due to the height limitation of the entire machine, the shortest distance between the main body 10 and the surface to be cleaned 70 still needs to be maintained within a reasonable range.

[0093] In this embodiment, the main body 10 is provided with two wheel grooves arranged opposite to each other on the first bottom surface 81, and a cleaning groove located between the two wheel grooves. The at least one running wheel 60 includes two running wheels 60 arranged opposite to each other, and the two running wheels 60 are respectively installed in the two wheel grooves, and each of the running wheels 60 partially extends out of the wheel groove. A rotatable cleaning roller brush can be installed in the cleaning groove, and the cleaning groove is connected to the dust collecting chamber. The garbage on the surface to be cleaned 70 can be lifted up by the rotation of the cleaning roller brush and then sucked into the dust collecting chamber by vacuum suction. In other embodiments, the cleaning device 100 may not be provided with the cleaning groove and the cleaning roller brush.

[0094] A step is provided between the second bottom surface 82 and the first bottom surface 81, and the distance between the second bottom surface 82 and the surface to be cleaned 70 is greater than the distance between the first bottom surface 81 and the surface to be cleaned 70, that is, the second bottom surface 82 forms a sunken area of the bottom surface of the main body 10, so that the movable bracket 23 is installed on the second bottom surface 82, which can increase the installation height of the movable bracket 23 relative to the surface to be cleaned 70. At the same time, the first bottom surface 81 and the surface to be cleaned 70 still maintain a small distance, which can improve the obstacle crossing capability without increasing the overall height of the cleaning device 100. In some embodiments, the distance between the movable bracket 23 and the surface to be cleaned 70 is greater than half of the shortest distance between the bottom of the main body 10 and the surface to be cleaned 70, that is, the distance between the movable bracket 23 and the surface to be cleaned 70 is greater than half of the shortest distance between the bottom of the main body 10 and the surface to be cleaned 70, that is, the distance between the movable bracket 23 and the surface to be cleaned 70 is greater than half of the shortest distance between the second bottom surface 82 and the surface to be cleaned 70. Please refer to the previous description and will not be repeated here.

[0095] See also Figure 1 、 Figure 21 and Figure 22Furthermore, the at least one walking wheel 60 includes two walking wheels 60, the second bottom surface 82 includes a middle area 83 and two oppositely arranged recessed areas 84, the two recessed areas 84 are respectively arranged adjacent to the two walking wheels 60, the middle area 83 is connected between the two recessed areas 84, the movable bracket 23 includes a flat portion 85 and two oppositely arranged connecting portions 86, the thickness of the flat portion 85 is less than the thickness of the two connecting portions 86, the flat portion 85 is arranged in the middle area 83, the two connecting portions 86 are respectively arranged in the two recessed areas 84, and the cleaning component 30 is detachably connected to the two connecting portions 86.

[0096] In this embodiment, the middle area 83 and the two recessed areas 84 constitute the main surface of the second bottom surface 82. The two recessed areas 84 are respectively located on the left and right sides of the cleaning device 100, and the middle area 83 is connected between the two recessed areas 84. The step difference between the portion of the surface of the second bottom surface 82 corresponding to the recessed areas 84 and the first bottom surface 81 is a first step difference, and the step difference between the portion of the surface of the second bottom surface 82 corresponding to the middle area 83 and the second bottom surface 82 is a second step difference, wherein the first step difference is greater than the second step difference, so that the distance between the portion of the surface of the second bottom surface 82 corresponding to the recessed areas 84 and the surface to be cleaned 70 is greater, thereby providing a larger installation space.

[0097] The flat portion 85 of the movable bracket 23 is movably connected to the middle area 83 of the second bottom surface 82. The flat portion 85 of the movable bracket 23 can be provided with a slide groove 232 or a guide slider 12. The movable bracket 23 slides with the guide slider 12 on the middle area 83 via the slide groove 232. Alternatively, the movable bracket 23 slides with the slide groove 232 on the middle area 83 via the guide slider 12. Please refer to the above description and will not be repeated here.

[0098] Compared to the flat portion 85 of the movable bracket 23, the connecting portion 86 of the movable bracket 23 has a greater thickness, which facilitates the provision of a connecting structure such as a slot or a buckle on the connecting portion 86 of the movable bracket 23. With the two connecting portions 86 respectively arranged in the two recessed areas 84, a small movable gap can still be maintained between the movable bracket 23 and the intermediate area 83 of the second bottom surface 82, thereby maintaining a greater distance between the movable bracket 23 and the surface to be cleaned 70.

[0099] See also Figure 1 、 Figure 21 and Figure 22Furthermore, the movable bracket 23 is provided with a through hole 89, and the main body 10 is provided with a fluid distributor 87 corresponding to the movable bracket 23, and the fluid distributor 87 is provided with a protrusion 88, and the protrusion 88 extends into the through hole 89, and the fluid distributor 87 applies fluid to the cleaning component 30 and / or the surface to be cleaned 70 through the protrusion 88.

[0100] In this embodiment, the fluid distributor 87 is mounted on the bottom of the main body 10. The fluid distributor 87 and the movable bracket 23 are both arranged on the second bottom surface 82. The movable bracket 23 covers the fluid distributor 87, so that the position of the fluid distributor 87 does not affect the reciprocating motion of the movable bracket 23, which is conducive to achieving a larger reciprocating motion stroke. The fluid distributor 87 can be connected to a peristaltic pump and a water tank 14 via a conduit. The peristaltic pump can transport the liquid in the water tank 14 to the fluid distributor 87, and then apply it to the cleaning assembly 30 or / and the surface to be cleaned 70 through the fluid distributor 87.

[0101] The above structure is relatively compact and occupies a small area of the bottom of the main body 10 , which is beneficial to saving space and realizing miniaturization of the cleaning device 100 .

[0102] In some embodiments, the fluid distributor 87 is roughly strip-shaped, a distribution flow channel is provided inside the fluid distributor 87, the protrusion 88 is protrudingly provided on the outer surface of the fluid distributor 87, and the protrusion 88 is provided with a water outlet hole connected to the distribution flow channel. A large volume flow rate of liquid can be evenly output through the water outlet holes of the multiple protrusions 88.

[0103] In another embodiment, the fluid distributor 87 includes an input pipe and several diversion pipes connected to the input pipe, and the protrusion 88 is provided at the end of each diversion pipe. The liquid in the input pipe can be diverted to the several diversion pipes and then output to the outside through the protrusion 88 of each diversion pipe.

[0104] Since the projection 88 extends into the through hole 89 of the movable bracket 23, the distance between the projection 88 and the cleaning assembly 30 is shortened. The projection 88 can extend to abut against the cleaning assembly 30, or the projection 88 can maintain a small distance from the cleaning assembly. The liquid discharged by the projection 88 can be directly applied to the cleaning assembly 30.

[0105] The number of the protrusions 88 can be two, three, four, or more than four, and can be set according to actual needs. The number of the through holes 89 can be the same as the number of the protrusions 88. Of course, in other embodiments, a single through hole 89 can simultaneously accommodate multiple protrusions 88.

[0106] See also Figure 1 、 Figure 21 and Figure 22 Furthermore, the movable bracket 23 can reciprocate relative to the main body 10 along a predetermined direction, and the through hole 89 extends parallel to the direction of movement of the movable bracket 23. The extension length of the through hole 89 is greater than or equal to the travel distance of the movable bracket 23, wherein the predetermined direction is parallel to the forward direction of the main body 10. The large extension length of the through hole 89 can prevent the protrusion 88 from interfering with the reciprocating movement of the movable bracket 23.

[0107] See also Figure 1 、 Figure 21 and Figure 22 Furthermore, the movable bracket 23 is provided with a protrusion 233 extending beyond the support plate 31 in a direction parallel to the surface to be cleaned 70, and the flexible cleaning member 32 is detachably connected to the protrusion 233 and the support plate 31 so that the support plate 31 is locked relative to the movable bracket 23.

[0108] In this embodiment, the movable bracket 23 is provided with a first side edge 92 adjacent to the two running wheels 60, the first side edge 92 being connected between the two connecting portions 86 of the movable bracket 23, and a portion of the first side edge 92 being protruded toward the middle position of the two running wheels 60 to form the protrusion 233. The protruding direction of the protrusion 233 is substantially parallel to the reciprocating motion direction of the movable bracket 23. The support plate 31 has a second side edge 93 adjacent to the first side edge 92 and a third side edge 94 provided relative to the second side edge 93. The second side edge 93 extends substantially parallel to the length direction of the first side edge 92. The support plate 31 extends from the second side edge 93 to the third side edge 94 and covers the main body 10 portion of the movable bracket 23. The protrusion 233 is provided beyond the second side edge 93 of the support plate 31 in a direction parallel to the surface to be cleaned 70, so that the protrusion 233 is exposed to the outside. The edge portion of the flexible cleaning member 32 can be detachably connected to the protrusion 233 by means of a snap, Velcro, sleeve, screw connection or magnet; the main body 10 portion of the flexible cleaning member 32 can also be detachably connected to the side of the support plate 31 away from the movable bracket 23 by means of a snap, Velcro, sleeve, screw connection or magnet, so that the flexible cleaning member 32 can play a role in keeping the movable bracket 23 and the support plate 31 relatively locked, so that the support plate 31, the flexible cleaning member 32 and the movable bracket 23 can form a solid whole. Under the action of the driving mechanism 80, the movable bracket 23, the support plate 31 and the flexible cleaning member 32 can move synchronously, which can prevent the support plate 31 from shaking violently relative to the movable bracket 23 when the movable bracket 23 drives the cleaning component 30 to reciprocate, and can also prevent the cleaning component 30 from being impacted by ground obstacles and separated from the movable bracket 23.

[0109] Please continue reading Figure 7 and Figure 23 In some embodiments, the support plate 31 has a connecting surface 95 relative to the second bottom surface 82. The connecting surface 95 is arranged to protrude relative to the first bottom surface 81, that is, the distance between the connecting surface 95 and the surface to be cleaned 70 is smaller than the distance between the first bottom surface 81 and the surface to be cleaned 70. The flexible cleaning member 32 can be attached to the connecting surface 95. The protrusion 233 further has an obstacle-crossing assistance surface 96 connected between the first bottom surface 81 and the connecting surface 95. The obstacle-crossing assistance surface 96 extends along an inclined direction to the first bottom surface 81. The obstacle-crossing assistance surface 96 can be a sloped surface or a curved surface. The obstacle-crossing assistance surface 96 can guide the cleaning device 100 to smoothly cross ground obstacles.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above. For the sake of simplicity, they are not provided in detail. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cleaning device, characterized in that: The cleaning device includes a main body and at least one walking wheel, the at least one walking wheel is mounted on the main body, and the main body can move on the surface to be cleaned by means of the at least one walking wheel. The cleaning device also includes a driving mechanism, a movable bracket and a cleaning assembly, the driving mechanism is mounted on the main body, the movable bracket is movably connected to the bottom of the main body and is connected to the driving mechanism, the movable bracket is driven by the driving mechanism to reciprocate in a direction parallel to the surface to be cleaned, and the cleaning assembly is detachably connected to the movable bracket; The main body is provided with a first bottom surface and a second bottom surface adjacent to the first bottom surface on a side close to the surface to be cleaned, and there is a step difference between the first bottom surface and the second bottom surface, so that the distance between the first bottom surface and the surface to be cleaned is smaller than the distance between the second bottom surface and the surface to be cleaned, the at least one walking wheel is extended out of the first bottom surface, and the movable bracket is installed on the second bottom surface; The movable bracket is provided with a through hole, and the main body is provided with a fluid distributor corresponding to the movable bracket. The fluid distributor is provided with a protrusion, and the protrusion extends into the through hole. The fluid distributor applies fluid to the cleaning component and / or the surface to be cleaned through the protrusion, and the through hole extends in a direction parallel to the movable direction of the movable bracket.

2. The cleaning device according to claim 1, wherein The movable bracket is spaced apart from the surface to be cleaned, and the distance between the movable bracket and the surface to be cleaned is greater than a preset distance threshold.

3. The cleaning device according to claim 2, characterized in that The cleaning component and the movable bracket are at least partially overlapped in a direction perpendicular to the surface to be cleaned.

4. The cleaning device according to claim 3, wherein The thickness of the cleaning component is less than or equal to the distance between the movable bracket and the surface to be cleaned. The cleaning device includes at least one elastic member, which is elastically arranged between the cleaning component and the movable bracket or the main body to provide elastic force for the cleaning component to fit the surface to be cleaned.

5. The cleaning device according to claim 2, wherein: The distance between the movable bracket and the surface to be cleaned is greater than half of the shortest distance between the bottom of the main body and the surface to be cleaned.

6. The cleaning device according to claim 1, wherein The at least one walking wheel includes two walking wheels, the second bottom surface includes a flat area and two oppositely arranged recessed areas, the two recessed areas are respectively arranged adjacent to the two walking wheels, the flat area is connected between the two recessed areas, the movable bracket includes a flat portion and two oppositely arranged connecting portions, the thickness of the flat portion is less than the thickness of the two connecting portions, the flat portion is arranged in the flat area, the two connecting portions are respectively arranged in the two recessed areas, and the cleaning component is detachably connected to the two connecting portions.

7. The cleaning device according to claim 1, wherein The movable bracket can reciprocate relative to the main body along a preset direction, and the extension length of the through hole is greater than or equal to the movable stroke of the movable bracket, wherein the preset direction is parallel to the forward direction of the main body.

8. The cleaning device according to claim 1, wherein The movable bracket is provided with at least one sliding groove, and the main body is provided with at least one guide sliding block protruding from the bottom, and the at least one guide sliding block is respectively slidably matched with the at least one sliding groove.

9. The cleaning device according to claim 1, wherein A movable gap is reserved between the movable bracket and the main body, and the cleaning device includes at least one roller, which is rotatably connected to the movable bracket, and the at least one roller is partially located in the movable gap and rolls against the side of the main body close to the movable bracket, or, the at least one roller is rotatably connected to the bottom of the main body, and the at least one roller is partially located in the movable gap and rolls against the side of the movable bracket close to the main body.

10. The cleaning device according to claim 1, wherein The cleaning assembly includes a support plate and a flexible cleaning member. The support plate is detachably connected to the movable bracket. The support plate is overlapped on the side of the movable bracket away from the main body. The flexible cleaning member is detachably connected to the side of the support plate away from the movable bracket.

11. The cleaning device according to claim 10, wherein The supporting plate is provided with two clamping parts which are arranged opposite to each other, and the two clamping parts are respectively connected to the two ends of the movable bracket.

12. The cleaning device according to claim 10, wherein The movable bracket is provided with a protrusion that extends beyond the support plate in a direction parallel to the surface to be cleaned, and the flexible cleaning member is detachably connected to the protrusion and the support plate so that the support plate is locked relative to the movable bracket.

13. The cleaning device according to claim 1, wherein The main body includes a chassis and a water tank connected to the chassis, the chassis carries the water tank, and the driving mechanism is installed on the chassis or the water tank.

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