Cleaning module and cleaning device

Abstract

The present disclosure provides a cleaning module and a cleaning device. The cleaning module comprises: a swing arm and a cleaning head; the swing arm comprises a first end and a second end, the first end of the swing arm being configured to be swingably mounted to a target part; the cleaning head is rotatably mounted to the second end of the swing arm, the rotational radius of the cleaning head is a, and the distance between the rotational axis of the swing arm and the rotational axis of the cleaning head is b, wherein a is greater than or equal to b. The cleaning module according to the present disclosure provides an improved cleaning effect.

Description

Cleaning modules and cleaning equipment CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This disclosure claims priority to Chinese patent application No. 202410022443.4 filed on January 5, 2024. The contents of the above-mentioned Chinese patent application disclosure are hereby incorporated by reference in their entirety as a part of this application. Technical Field

[0002] The present disclosure relates to the field of smart home technology, and in particular to a cleaning module and a cleaning device. Background Art

[0003] With the development of modern society, more and more people are focusing on work, leaving them with less time to clean their homes. However, daily household cleaning and maintenance constantly impact people's quality of life. To save time and maintain household hygiene, more and more people are purchasing cleaning equipment to clean their homes in a timely and convenient manner. These cleaning equipment can automatically clean the floor of a room using artificial intelligence.

[0004] Most cleaning devices in the related art are sweeping robots. When the sweeping robots perform cleaning tasks, the brush heads of the cleaning robots effectively clean the floor.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the Invention

[0006] The purpose of the present disclosure is to provide a cleaning module and a cleaning device.

[0007] According to one aspect of the present disclosure, a cleaning module is provided, comprising:

[0008] a swing arm, the swing arm comprising a first end and a second end, the first end of the swing arm being configured to be swingably mounted on a target part;

[0009] a cleaning head rotatably mounted on the second end of the swing arm;

[0010] The rotation radius of the cleaning head is a, and the distance between the rotation axis of the swing arm and the rotation axis of the cleaning head is b, wherein a is greater than or equal to b.

[0011] In an exemplary embodiment of the present disclosure, the ratio of a to b is greater than or equal to 1 and less than or equal to 2.

[0012] In an exemplary embodiment of the present disclosure, a=60 mm to 80 mm.

[0013] In an exemplary embodiment of the present disclosure, b=40 mm to 70 mm.

[0014] In an exemplary embodiment of the present disclosure, the cleaning head includes a plurality of brush claws, and the plurality of brush claws have the same length.

[0015] According to another aspect of the present disclosure, there is provided a cleaning device, the cleaning device comprising:

[0016] Equipment body;

[0017] In the above-mentioned cleaning module, the swing arm is swingably mounted on the equipment body, and the swing arm can be positioned at a retracted position and an extended position relative to the equipment body by swinging.

[0018] In an exemplary embodiment of the present disclosure, the device body is circular, and the distance between the center of the device body and the rotation axis of the swing arm is c, wherein the ratio of c to b is greater than or equal to 2 and less than or equal to 4.

[0019] In an exemplary embodiment of the present disclosure, the device body is circular, and the diameter of the device body is d, wherein the ratio of d to b is greater than or equal to 4 and less than or equal to 10.

[0020] In an exemplary embodiment of the present disclosure, the device body is circular, and the diameter of the device body is d; when the swing arm is in the extended position, in the forward direction of the cleaning device, the distance between the rotating axis of the cleaning head and the symmetry axis of the cleaning device is e, wherein (e+a) is greater than d / 2.

[0021] In an exemplary embodiment of the present disclosure, in a direction perpendicular to the forward direction of the cleaning device, the distance between the rotation axis of the cleaning head and the symmetry axis of the cleaning device is f, wherein (f+a) is greater than d / 2.

[0022] The cleaning module provided by the present disclosure has a cleaning head that can swing within a preset angle range under the drive of the swing arm to perform cleaning operations at the target position. The rotation radius a of the cleaning head is greater than the distance b between the rotating shaft of the swing arm and the rotating shaft of the cleaning head, thereby increasing the cleaning radius of the cleaning head, thereby increasing the cleaning area and cleaning effect of the cleaning head; at the same time, when the swing arm swings to different positions, since the rotation radius a of the cleaning head is greater than the distance b between the rotating shaft of the swing arm and the rotating shaft of the cleaning head, the position corresponding to the rotating shaft of the swing arm can be covered by the cleaning area formed by the cleaning head, thereby improving the cleaning effect.

[0023] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0025] FIG1 is a schematic diagram of a cleaning module provided by an embodiment of the present disclosure;

[0026] FIG2 is a front view of a cleaning device according to an embodiment of the present disclosure, wherein the swing arm is located in a recovery position;

[0027] FIG3 is a bottom schematic diagram of a cleaning device according to an embodiment of the present disclosure, wherein the swing arm is located in a recovery position;

[0028] FIG4 is a front view of a cleaning device according to an embodiment of the present disclosure, wherein the swing arm is in an extended position;

[0029] FIG5 is a bottom schematic diagram of a cleaning device provided by an embodiment of the present disclosure, wherein the swing arm is in an extended position;

[0030] FIG6 is a schematic diagram of a cleaning device provided by an embodiment of the present disclosure, in which a swing arm is located in a retracted position and an extended position relative to the device body.

[0031] Description of the accompanying drawings: 10, cleaning device; 100, cleaning module; 110, swing arm; 120, cleaning head; 121, mounting portion; 122, brush claw; 200, device body. DETAILED DESCRIPTION

[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0033] Although relative terms such as "upper" and "lower" are used in this specification to describe the relationship of one illustrated component to another, these terms are used herein for convenience only, such as in accordance with the orientation of the illustrations in the accompanying drawings. It will be understood that if the illustrated device were flipped upside down, the component described as "upper" would become the component "lower." When a structure is referred to as "on" another structure, this may mean that the structure is integrally formed with the other structure, that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via the other structure.

[0034] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express open-ended inclusion and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.; the terms "first", "second", etc. are used only as labels and are not intended to limit the quantity of their objects.

[0035] The present disclosure first provides a cleaning module, as shown in FIG1 . The cleaning module 100 includes a swing arm 110 and a cleaning head 120. The swing arm 110 includes a first end and a second end. The first end of the swing arm 110 is configured to be swingably mounted on a target object, and the cleaning head 120 is rotatably mounted on the second end of the swing arm 110. Driven by the swing arm 110, the cleaning head 120 can swing within a preset angle range to perform cleaning operations at the target location.

[0036] The rotation radius of the cleaning head 120 is a, the distance between the rotation axis of the swing arm 110 and the rotation axis of the cleaning head 120 is b, and a is greater than or equal to b. The position of the rotation axis of the swing arm 110 is the rotation center position of the swing arm 110, and the position of the rotation axis of the cleaning head 120 is the rotation center position of the cleaning head 120.

[0037] The cleaning module 100 provided by the present disclosure has a cleaning head 120 that can swing within a preset angle range driven by the swing arm 110 to perform cleaning operations at a target position. The rotation radius a of the cleaning head 120 is greater than the distance b between the rotation axis of the swing arm 110 and the rotation axis of the cleaning head 120, thereby increasing the cleaning radius of the cleaning head 120, thereby increasing the cleaning area and cleaning effect of the cleaning head 120; at the same time, when the swing arm 110 swings to different positions, since the rotation radius a of the cleaning head 120 is greater than the distance b between the rotation axis of the swing arm 110 and the rotation axis of the cleaning head 120, the position corresponding to the rotation axis of the swing arm 110 can be covered by the cleaning area formed by the cleaning head 120, thereby improving the cleaning effect.

[0038] In one embodiment, the ratio of the rotation radius a of the cleaning head 120 to the distance b between the rotation axis of the swing arm 110 and the rotation axis of the cleaning head 120 is greater than or equal to 1 and less than or equal to 2 (a:b=1-2), such as 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, etc., which are not listed here in the present disclosure. By making the ratio of the rotation radius a of the cleaning head 120 to the distance b between the rotation axis of the swing arm 110 and the rotation axis of the cleaning head 120 1-2, the cleaning head 120 can cover the area within the swing range of the swing arm 110 and perform cleaning operations on the area within the swing range of the swing arm 110; at the same time, the cleaning radius of the cleaning head 120 is slightly different from the swing radius of the swing arm 110. When the cleaning head 120 performs a rotating cleaning operation, the swing arm 110 can enhance the stable support effect, so that the cleaning head 120 is in close contact with the surface to be cleaned, thereby improving the cleaning effect. Of course, the ratio of the rotation radius a of the cleaning head 120 to the distance b between the rotation axis of the swing arm 110 and the rotation axis of the cleaning head 120 may also be less than 1 or greater than 2, and the present disclosure does not impose any limitation on this.

[0039] The rotation radius a of the cleaning head 120 can be 60 mm to 80 mm, such as 60 mm, 62 mm, 65 mm, 68 mm, 70 mm, 72 mm, 75 mm, 78 mm, 80 mm, etc., which are not listed here. By setting the rotation radius a of the cleaning head 120 to 60 mm to 80 mm, the cleaning head 120 can clean an area with a diameter of 120 mm to 160 mm, thereby improving cleaning efficiency and avoiding excessive length of the brush claws, thereby improving the cleaning effect. Of course, the rotation radius a of the cleaning head can also be less than 60 mm or greater than 80 mm, and this disclosure does not impose any restrictions on this.

[0040] The spacing b between the rotating shaft of the swing arm 110 and the rotating shaft of the cleaning head 120 can be 40 mm to 70 mm, for example, 40 mm, 42 mm, 45 mm, 48 mm, 50 mm, 52 mm, 55 mm, 55.56 mm, 58 mm, 60 mm, 62 mm, 65 mm, 68 mm, 70 mm, etc., which are not listed here. By setting the spacing b between the rotating shaft of the swing arm 110 and the rotating shaft of the cleaning head 120 to be 40 mm to 70 mm, the swing arm 110 can position the cleaning head 120 in the extended position S2 at a smaller swing angle, thereby improving the reliability of the swing arm 110. Of course, the spacing b between the rotating shaft of the swing arm 110 and the rotating shaft of the cleaning head 120 can also be less than 40 mm or greater than 70 mm, and this is not limited by the present disclosure.

[0041] Specifically, the cleaning head 120 includes multiple brush claws 122, each of which is of the same length. As shown in FIG3 , the cleaning head 120 is a side brush, comprising three brush claws 122 evenly distributed around the circumference of the cleaning head 120 to enhance the cleaning effect of the side brush. Of course, the side brush may also include two, four, or more brush claws 122.

[0042] As shown in FIG. 1 , the side brush includes a mounting portion 121 and a brush claw 122 connected to the mounting portion 121 . The side brush is rotatably assembled on the swing arm 110 through the mounting portion 121 .

[0043] An embodiment of the present disclosure also provides a cleaning device, as shown in Figures 2 to 6, the cleaning device 10 includes: an equipment body 200 and a cleaning module 100 provided in the above embodiment, the first end of the swing arm 110 of the cleaning module 100 is swingably assembled on the equipment body 200, and the swing arm 110 can be positioned in the recovery position S1 and the extended position S2 relative to the equipment body 200 by swinging.

[0044] The cleaning device 10 provided by the present disclosure has a cleaning head 120 that can swing within a preset angle range relative to the device body 200 under the drive of the swing arm 110 to perform cleaning operations at the target position. The rotation radius a of the cleaning head 120 is greater than the distance b between the rotating axis of the swing arm 110 and the rotating axis of the cleaning head 120, which increases the cleaning radius of the cleaning head 120, thereby increasing the cleaning area and cleaning effect of the cleaning head 120; at the same time, when the swing arm 110 swings to different positions, since the rotation radius a of the cleaning head 120 is greater than the distance b between the rotating axis of the swing arm 110 and the rotating axis of the cleaning head 120, the position corresponding to the rotating axis of the swing arm 110 can be covered by the cleaning area formed by the cleaning head 120, thereby improving the cleaning effect of the cleaning device 10.

[0045] Among them, when the cleaning head 120 is located at the recovery position S1, the cleaning head 120 can perform normal cleaning operations and clean the debris in the cleaning area of ​​the cleaning head 120 to the sewage suction port; when the cleaning head 120 is located at the extended position S2, the cleaning area corresponding to the cleaning head 120 is also extended to the outside of the cleaning equipment, and more areas can be cleaned, avoiding the occurrence of cleaning dead corners and improving the cleaning effect of the cleaning equipment. For example, when the cleaning device is circular as a whole, when it is necessary to clean corners such as wall corners, if the cleaning head 120 is in the recovery position S1, the cleaning area of ​​the cleaning head 120 cannot cover the wall corners, resulting in the inability to clean the wall corners, forming a sanitary dead corner; at this time, by making the cleaning head 120 in the extended position, the cleaning head 120 is located outside the cleaning device 10, and the cleaning area formed by the cleaning head 120 is also moved toward the outside of the cleaning device, thereby increasing the area of ​​the cleaning area corresponding to the cleaning head 120, thereby achieving the purpose of cleaning sanitary dead corners such as wall corners, and improving the cleaning effect of the cleaning device 10.

[0046] Specifically, the device body 200 also includes a drive assembly, and the first end of the swing arm 110 is connected to the drive assembly; the swing arm 110 can be provided with a gear set to achieve the purpose of the drive assembly output shaft driving the cleaning head 120 to rotate at high speed, and the rotation speed of the cleaning head 120 can be 500 rpm to 3000 rpm to improve cleaning efficiency and cleaning effect. The rotation speed is, for example, 500 rpm, 800 rpm, 1000 rpm, 2000 rpm, 3000 rpm, etc., which are not listed one by one in this disclosure. Of course, the rotation speed of the cleaning head 120 can also be less than 500 rpm or greater than 3000 rpm, and this disclosure does not limit this.

[0047] The swing arm 110 may have a receiving space formed therein to accommodate the gear set. The swing arm 110 may be shaped like a rectangular parallelepiped, with the swing arm 110 extending in its length direction. The swing arm 110 may swing in its width direction. The receiving space formed in the thickness direction of the swing arm 110 may only need to be able to accommodate the gear set, thereby preventing the swing arm 110 from being too large.

[0048] Among them, the swing arm 110 swings back and forth within a preset angle range, and the preset angle can be 20°~120°, such as 20°, 30°, 40°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, etc., which are not listed one by one in the present disclosure.

[0049] Among them, the swing arm 110 can be swung back and forth within a preset angle range through a driving component. The driving component that drives the swing arm 110 and the driving component that drives the cleaning head 120 can be two independent driving components; or, the swing arm 110 is rotatably connected to the driving component, and the swing arm 110 is not driven by the driving component. The swing arm 110 can swing relative to the driving component by external force to change the position of the cleaning head 120 relative to the device body 200.

[0050] In one embodiment, the cleaning device includes a shell, which serves as the shell of the entire machine. When the cleaning device is in a circular, elliptical, quasi-circular or other shape as a whole, the shell includes a top cover portion and an annular side wall portion. The top cover portion and the annular side wall portion enclose a receiving space to form a receiving space. The receiving space is used to assemble various modules, such as a drive module, a liquid supply module, a battery module, a control module, a dirt suction module, a mopping module, a sensing module, etc.

[0051] In one embodiment, the drive module can manipulate the cleaning device to travel across the ground in the forward direction X based on a drive command with distance and angle information (such as x, y and θ components). The drive module may include a first drive wheel module and a second drive wheel module. The first drive wheel module and the second drive wheel module are arranged along the transverse axis defined by the cleaning device, and the extension direction of the transverse axis is the forward direction X of the cleaning device. In order to enable the cleaning device to move more stably or have stronger mobility on the ground, the cleaning device may include one or more driven wheels, which include but are not limited to universal wheels. The drive wheel module includes a running wheel and a drive motor and a control circuit for controlling the drive motor. The drive wheel module can also be connected to a circuit and an odometer for measuring the drive current. The drive wheel module can be detachably connected to the bottom shell for convenient disassembly and maintenance. The drive wheel can have a biased drop-down suspension system, fastened in a movably manner, for example, attached in a rotatable manner, connected to the bottom shell, and receive a spring bias that is biased downward and away from the bottom shell. The spring bias allows the drive wheel to maintain contact and traction with the ground with a certain ground force, while the cleaning head 120 of the cleaning device also contacts the ground with a certain pressure.

[0052] In one embodiment, as shown in FIG6 , the device body 200 is circular, and the distance between the center of the device body 200 and the rotation axis of the swing arm 110 is c, and the ratio of c to b is greater than or equal to 2 and less than or equal to 4 (c:b=2-4), such as 2, 2.2, 2.5, 2.7, 3, 3.2, 3.5, 3.75, 3.8, 4, etc., which are not listed here in this disclosure. By setting the ratio of the distance c between the center of the device body 200 and the rotation axis of the swing arm 110 to the distance b between the rotation axis of the swing arm 110 and the rotation axis of the cleaning head 120 to be 2-4, the length of the swing arm 110 relative to the device body 200 is prevented from being too small, so that the swing arm 110 can achieve the side brush in the retracted position S1 and the extended position S2 within a relatively small swing range. At the same time, the length of the swing arm 110 relative to the device body 200 is prevented from being too large, thereby improving the stability of the swing arm 110 when swinging relative to the device body 200 and the reliability of the support for the side brush when the side brush is working. Of course, the ratio of the distance c between the center of the device body 200 and the rotating axis of the swing arm 110 to the distance b between the rotating axis of the swing arm 110 and the rotating axis of the cleaning head 120 can also be less than 2 or greater than 4, and the present disclosure does not impose any restrictions on this.

[0053] Among them, the diameter of the equipment body 200 can be 140 mm, the distance x between the rotating axis of the swing arm 110 and the axis of symmetry of the cleaning equipment in the first direction, x can be 130.9 mm, and the first direction is the forward direction X of the equipment body 200; the distance y between the rotating axis of the swing arm 110 and the axis of symmetry of the cleaning equipment in the second direction, y can be 73.25 mm, and the second direction is perpendicular to the first direction.

[0054] In one embodiment, the device body 200 is circular, and the diameter of the device body 200 is d, wherein the ratio of the diameter d of the device body 200 to the distance b between the rotating shaft of the swing arm and the rotating shaft of the cleaning head is greater than or equal to 4 and less than or equal to 10 (d:b=4~10), for example 4, 4.5, 5, 5.5, 6, 6.3, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, etc., which are not listed one by one in this disclosure. By setting the ratio of the diameter d of the device body 200 to the distance b between the rotating shaft of the swing arm 110 and the rotating shaft of the cleaning head 120 to be 4 to 10, the length of the swing arm 110 relative to the device body 200 is prevented from being too short, allowing the swing arm 110 to achieve the side brush being located in the retracted position S1 and the extended position S2 within a relatively small swing range. At the same time, the length of the swing arm 110 relative to the device body 200 is prevented from being too long, thereby improving the stability of the swing arm 110 when swinging relative to the device body 200 and the reliability of the support for the side brush when the side brush is in operation. Of course, the ratio of the diameter d of the device body 200 to the distance b between the rotating shaft of the swing arm 110 and the rotating shaft of the cleaning head 120 can also be less than 4 or greater than 10, and this is not limited in this disclosure.

[0055] The diameter of the device body 200 may be 140 mm, and the distance b between the rotating shaft of the swing arm 110 and the rotating shaft of the cleaning head 120 may be 55.56 mm.

[0056] In one embodiment, as shown in Figures 3 to 5, the device body 200 is circular, with a diameter of d. When the swing arm 110 is in the extended position S2, in the forward direction X of the cleaning device, the distance between the rotation axis of the cleaning head 120 and the axis of symmetry of the cleaning device is e, and e+a>d / 2. By making the sum of the distance e between the rotation axis of the cleaning head 120 and the axis of symmetry of the cleaning device in the first direction and the rotation radius a of the cleaning head 120 greater than the radius d / 2 of the device body 200, that is, when the swing arm 110 is in the extended position S2, the edge of the side brush protrudes beyond the edge of the device body 200 in the first direction, allowing the side brush to cover areas that the device body 200 cannot reach in the first direction. When the device body 200 encounters an obstacle while advancing, or in a corner, for example, the side brush can clean the area in front, thereby improving the cleaning effect.

[0057] Among them, the ratio of the distance e between the rotating axis of the cleaning head 120 and the symmetry axis of the cleaning device in the first direction to the rotation radius a of the cleaning head 120 and the radius of the device body 200 is greater than or equal to 1.1 and less than or equal to 1.3 ((e+a): d / 2=1.1~1.3), for example, 1.1, 1.15, 1.2, 1.25, 1.3, etc., which are not listed one by one in this disclosure.

[0058] In the second direction perpendicular to the forward direction X of the cleaning device, the spacing between the rotation axis of the cleaning head 120 and the axis of symmetry of the cleaning device is f, and f+a>d / 2. By making the sum of the spacing f between the rotation axis of the cleaning head 120 and the axis of symmetry of the cleaning device in the second direction and the rotation radius a of the cleaning head 120 greater than the radius d / 2 of the device body 200, when the swing arm 110 is in the extended position S2, the edge of the side brush protrudes beyond the edge of the device body 200 in the second direction, allowing the side brush to cover areas that the device body 200 cannot reach in the second direction. When the device body 200 encounters an obstacle while advancing, or in a corner, for example, the side brush can clean the area in front, thereby improving the cleaning effect.

[0059] Among them, the ratio of the distance f between the rotating axis of the cleaning head 120 and the symmetry axis of the cleaning device in the second direction to the rotation radius a of the cleaning head 120 and the radius d / 2 of the device body 200 is greater than or equal to 1.1 and less than or equal to 1.3 ((f+a): d / 2=1.1~1.3), for example, 1.1, 1.15, 1.2, 1.25, 1.3, etc., which are not listed one by one in this disclosure.

[0060] The ratio of (f+a) to d / 2 can be equal to the ratio of (e+a) to d / 2, that is, f can be equal to e, so that the cleaning head 120 can cover more areas in both the first direction and the second direction, improving the problem of sanitary blind spots and improving the cleaning efficiency and cleaning effect of the cleaning device. Of course, the ratio of (f+a) to d / 2 may not be equal to the ratio of (e+a) to d / 2, and this disclosure does not limit this.

[0061] In one embodiment, the sensing module includes a position determination device located on the housing of the device body 200, a collision sensor located on the bumper of the forward portion of the housing, a proximity sensor located on the housing, a cliff sensor located at the bottom of the housing, and sensing devices such as a magnetometer, accelerometer, gyroscope, and odometer located within the housing. These sensors are used to provide the control module with various information about the position and motion status of the cleaning device. The position determination device may be a camera or a laser rangefinder.

[0062] In one embodiment, the control module is provided on a circuit board inside the housing of the device body 200 and includes a non-transitory memory, such as a hard disk, a flash memory, a random access memory, and a communication computing processor, such as a central processing unit, an application processor. The application processor uses a positioning algorithm, such as real-time positioning and map construction, based on the obstacle information fed back by the laser ranging device to draw a real-time map of the environment in which the cleaning device is located. In addition, the control module is combined with the distance information and speed information fed back by the sensors, cliff sensors, magnetometers, accelerometers, gyroscopes, odometers and other sensor devices provided on the buffer to comprehensively judge the current working state and location of the cleaning device, as well as the current posture of the cleaning device, such as crossing the threshold, being on the carpet, being on the cliff, being stuck above or below, the suction tank being full, being picked up, etc. Specific next action strategies are also given for different situations, so that the cleaning device has better cleaning performance and user experience.

[0063] In one embodiment, a sewage suction module is provided on the cleaning equipment, and the sewage suction module includes a negative pressure fan, a sewage suction box and a sewage suction channel. The outlet of the sewage suction channel is connected to the sewage suction box, and the inlet of the sewage suction channel is exposed from the cover plate. The negative pressure fan is connected to the sewage suction box so that the sewage suction box maintains a negative pressure state when the cleaning equipment performs cleaning operations, thereby making the inlet of the sewage suction channel in a negative pressure state.

[0064] Among them, the cleaning head 120 is arranged adjacent to the sewage suction port. Through the high-speed rotation of the cleaning head 120, the debris can be cleaned to the vicinity of the sewage suction port. Then, due to the negative pressure, the debris is sucked into the sewage suction channel through the sewage suction port and then enters the sewage suction box, thereby realizing the debris cleaning operation on the surface to be cleaned.

[0065] As shown in Figure 1, the sewage suction port is located in the middle position of the bottom of the cleaning equipment, and the cleaning head 120 is located in the front side of the sewage suction port, so that the debris swept by the cleaning head 120 can basically be located in the middle position of the sewage suction port, so that the swept debris can better enter the sewage suction port.

[0066] Among them, the negative pressure provided by the negative pressure fan can be 3000Pa~7000Pa to enhance the negative pressure absorption effect of debris. The negative pressures are, for example, 3000Pa, 4000Pa, 5000Pa, 6000Pa, 7000Pa, etc., which are not listed one by one in this disclosure; of course, the negative pressure provided by the negative pressure fan can also be less than 3000Pa or greater than 7000Pa, which is not limited in this disclosure.

[0067] Among them, a roller brush rotating around an axis parallel to the ground can be set at the sewage suction port. The roller brush with a certain interference with the ground sweeps up the debris on the ground and rolls it into the sewage suction channel, and then it is sucked into the sewage suction box by the suction gas generated by the negative pressure fan and passing through the sewage suction box.

[0068] In one embodiment, the cleaning device further includes a mopping module and a liquid supply module. The mopping module includes a wet cleaning head 120, and the liquid supply module includes a liquid supply assembly that delivers cleaning liquid to the wet cleaning head 120. The wet cleaning head 120 can be positioned below the liquid supply assembly. The cleaning liquid within the liquid supply assembly is transferred to the wet cleaning head 120 via a water supply mechanism, allowing the wet cleaning head 120 to wet clean the surface to be cleaned. Of course, the cleaning liquid within the liquid supply assembly can also be sprayed directly onto the surface to be cleaned, with the wet cleaning head 120 cleaning the surface by evenly applying the cleaning liquid.

[0069] As shown in Figure 1, the wet cleaning head 120 can be arranged at the bottom of the cleaning device. The wet cleaning head 120 can be, for example, a cleaning pad arranged parallel to the surface to be cleaned. The wet cleaning head 120 is used to clean the surface to be cleaned, and the drive assembly is used to drive the wet cleaning head 120 to basically reciprocate along the target surface, and the target surface is a part of the surface to be cleaned. The wet cleaning head 120 reciprocates along the surface to be cleaned, and the contact surface between the wet cleaning head 120 and the surface to be cleaned is provided with a cleaning cloth or a cleaning plate. The reciprocating motion generates high-frequency friction with the surface to be cleaned, thereby removing stains on the surface to be cleaned. The higher the friction frequency, the more friction times per unit time. The high-frequency reciprocating motion has a cleaning ability far greater than that of ordinary reciprocating motion, such as rotation and friction cleaning. Optionally, the friction frequency is close to that of sound waves, and the cleaning effect will be much higher than that of rotational friction cleaning of dozens of revolutions per minute. On the other hand, the bristles on the surface of the wet cleaning head 120 will extend in the same direction more uniformly under the vibration of high-frequency vibration, so the overall cleaning effect is more uniform, instead of just applying downward pressure to increase friction and improve the cleaning effect under low-frequency rotation. The downward pressure alone will not make the bristles extend in nearly the same direction. The effect is that the water marks on the surface to be cleaned after high-frequency vibration cleaning are more uniform, and no messy water stains are left.

[0070] In one embodiment, the battery module includes rechargeable batteries, such as nickel-metal hydride batteries and lithium batteries. The rechargeable batteries can be connected to a charging control circuit, a battery pack charging temperature detection circuit, and a battery undervoltage monitoring circuit. These circuits are further connected to a single-chip microcomputer control circuit. The cleaning device can be charged by connecting charging electrodes located on the body, such as on the side, bottom, or top of the body, to a charging station.

[0071] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.

Claims

1. A cleaning module, characterized in that, Comprising: A swing arm, the swing arm includes a first end and a second end, and the first end of the swing arm is configured to be swingably assembled on a target member; A cleaning head, the cleaning head is rotatably assembled on the second end of the swing arm; Wherein, the rotation radius of the cleaning head is a, and the distance between the rotation axis of the swing arm and the rotation axis of the cleaning head is b, wherein a is greater than or equal to b.

2. The cleaning module according to claim 1, wherein, The ratio of a to b is greater than or equal to 1 and less than or equal to 2.

3. The cleaning module according to claim 1, wherein, a = 60mm to 80mm.

4. The cleaning module according to claim 1, wherein, b = 40mm to 70mm.

5. The cleaning module according to claim 1, wherein, The cleaning head includes a plurality of brush claws, and the lengths of the plurality of brush claws are the same.

6. A cleaning device, characterized in that, Comprising: The device body; The cleaning module according to any one of claims 1 to 5, the swing arm is swingably assembled on the device body, and the swing arm can be located at a recovery position and an extended position relative to the device body by swinging.

7. The cleaning device according to claim 6, wherein, The device body is circular, and the distance between the center of the device body and the rotation axis of the swing arm is c, and the ratio of c to b is greater than or equal to 2 and less than or equal to 4.

8. The cleaning device according to claim 6, wherein, The device body is circular, and the diameter of the device body is d, and the ratio of d to b is greater than or equal to 4 and less than or equal to 10.

9. The cleaning device according to claim 6, wherein, The device body is circular, and the diameter of the device body is d; when the swing arm is in the extended position, in the forward direction of the cleaning device, the distance between the rotation axis of the cleaning head and the symmetry axis of the cleaning device is e, wherein, (e + a) is greater than d / 2.

10. The cleaning device according to claim 9, wherein, In the direction perpendicular to the forward direction of the cleaning device, the distance between the rotation axis of the cleaning head and the symmetry axis of the cleaning device is f, wherein, (f + a) is greater than d / 2.

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