Drive wheel assembly and cleaning device equipped with the same

Abstract

The present invention relates to a driving wheel assembly and a cleaning device equipped with the same, the driving wheel assembly comprising: a driving housing having a driving accommodating chamber and a connecting slot connecting the driving accommodating chamber and the external environment; a driving wheel unit housed in the driving accommodating chamber and partially protruding out of the connecting slot, the driving wheel unit being capable of rotating relative to the driving housing around an axis; an elastic member located outside the driving accommodating chamber, one end of the elastic member being coupled to the portion of the driving wheel unit protruding out of the connecting slot, the other end of the elastic member being coupled to the driving housing, the elastic member being used to apply a force to the driving wheel unit causing the driving wheel unit to extend out of the driving accommodating chamber. In the above-mentioned driving wheel assembly, the elastic member is independently installed outside the driving accommodating chamber, so that the installation of the elastic member and the installation of the driving wheel unit do not interfere with each other, and the elastic member can be installed after the driving wheel unit is installed in the driving accommodating chamber, thereby simplifying the steps of disassembling and assembling the elastic member and improving the assembly efficiency of the driving wheel assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent electrical appliances, and in particular to a driving wheel assembly and a cleaning device equipped with the same. Background Art

[0002] With technological advancements and social development, cleaning devices such as sweeping robots, mopping robots, and combined mop and sweep robots for indoor floor cleaning have gradually become part of people's lives. These cleaning devices automatically detect factors such as room size, furniture placement, and floor cleanliness, and rely on built-in programs to formulate optimal cleaning routes. They have become popular and increasingly widely used in people's lives, significantly reducing their burden and bringing great convenience to people's lives.

[0003] The driving wheel assembly is an important structure that drives the cleaning device to move. However, the existing driving wheel assembly has many parts and a more complicated structure, so it is inconvenient to assemble, thereby reducing the assembly efficiency of the cleaning device. Summary of the Invention

[0004] In order to solve the problem of inconvenient assembly of a driving wheel assembly, the present invention provides a driving wheel assembly and a cleaning device equipped with the same. The driving wheel assembly and the cleaning device equipped with the same can achieve the technical effect of improving the installation convenience of the driving wheel assembly.

[0005] According to one aspect of the present application, a drive wheel assembly is provided, comprising:

[0006] A drive housing having a drive accommodating cavity and a connecting slot communicating the drive accommodating cavity with the external environment;

[0007] a driving wheel unit, housed in the driving accommodating cavity and partially protruding out of the connecting slot, wherein the driving wheel unit is capable of rotating around an axis relative to the driving housing; and

[0008] An elastic member is located outside the drive accommodating cavity, one end of the elastic member is connected to the portion of the drive wheel unit protruding from the connecting slot, and the other end of the elastic member is connected to the drive housing. The elastic member is used to apply a force to the drive wheel unit to cause the drive wheel unit to extend out of the drive accommodating cavity.

[0009] In one embodiment, the drive housing includes a drive upper shell and a drive lower shell, the drive upper shell and the drive lower shell are engaged with each other in a first direction to define the drive accommodating cavity, and the connecting slot is opened in the drive upper shell.

[0010] In one embodiment, the driving upper shell includes an upper shell top wall and an upper shell side wall, the upper shell side wall extends from the edge of the upper shell top wall toward the driving lower shell, and the elastic member is installed on the upper shell top wall.

[0011] In one embodiment, the top wall of the upper shell is provided with an elastic member installation groove on one side in the second direction, which is connected to the side wall of the upper shell. The elastic member installation groove extends longitudinally along the third direction. The connecting slot is provided at one end of the elastic member installation groove in the third direction. The elastic member is received in the elastic member installation groove and extends longitudinally along the third direction.

[0012] The first direction, the second direction and the third direction are perpendicular to each other.

[0013] In one embodiment, the driving wheel unit includes a first fixing member, which protrudes out of the connecting slot along the second direction; the driving housing also includes a second fixing member, which protrudes from the slot wall of the elastic member mounting slot and is located at one end of the elastic member mounting slot away from the connecting slot in the third direction; the two ends of the elastic member are respectively connected to the first fixing member and the second fixing member.

[0014] In one embodiment, the driving wheel assembly further includes a lift-off switch for detecting the position of the driving wheel unit, the top wall of the upper shell is provided with a switch accommodating cavity connected to the driving accommodating cavity, and the lift-off switch is accommodated in the switch accommodating cavity.

[0015] In one embodiment, the side wall of the upper shell is provided with a side wire outlet hole, the top wall of the upper shell is provided with a first top wire outlet groove, and the side wall of the upper shell is provided with a side wire outlet groove, and the switch accommodating cavity and the side wire outlet hole are connected to each other through the first top wire outlet groove and the side wire outlet groove.

[0016] In one embodiment, the top wall of the upper shell is provided with a top wire outlet hole and a second top wire outlet groove, and the switch accommodating cavity and the top wire outlet hole are communicated with each other through the second top wire outlet groove.

[0017] According to another aspect of the present application, a cleaning device is provided, comprising the above-mentioned driving wheel assembly.

[0018] In one embodiment, the cleaning device is a sweeping robot, a mopping robot, or a sweeping and mopping robot.

[0019] In the above-mentioned driving wheel assembly, the elastic member is independently installed outside the driving accommodating cavity, so the installation of the elastic member and the installation of the driving wheel unit do not interfere with each other. The elastic member can be installed after the driving wheel unit is installed in the driving accommodating cavity, thereby simplifying the disassembly and assembly steps of the elastic member and improving the assembly efficiency of the driving wheel assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a driving wheel assembly according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 An exploded schematic diagram of the drive wheel assembly shown;

[0022] Figure 3 for Figure 1 A schematic structural diagram of the driving wheel assembly from another angle;

[0023] Figure 4 Schematic diagram of the structure of a driving wheel assembly according to another embodiment of the present invention.

[0024] Description of Figure Numbers:

[0025] 100. Drive wheel assembly; 10. Drive housing; 12. Drive upper shell; 121. Upper shell top wall; 1211. Elastic member mounting slot; 1212. Connecting slot; 1213. Switch accommodating chamber; 1214. Top wire outlet hole; 1215. First top wiring trough; 1215a. First wiring segment; 1215b. Second wiring segment; 1216. Second top wiring trough; 123. Upper shell side wall; 1232. Side wire outlet hole; 1234. Side wiring trough; 125. Second fixing member; 14. Drive lower shell; 30. Drive wheel unit; 31. Reducer; 32. Drive wheel; 33. Drive motor; 34. Trigger member; 35. First fixing member; 36. Wiring limit clamp; 50. Rotating shaft; 70. Elastic member; 90. Ground lift switch. DETAILED DESCRIPTION

[0026] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0029] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0030] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0032] See Figure 1 , Figure 1 FIG2 shows a schematic structural diagram of a driving wheel assembly 100 in an embodiment of the present invention; Figure 2 FIG. 1 shows an exploded schematic diagram of a driving wheel assembly 100 in an embodiment of the present invention.

[0033] See Figures 1 to 2 , a cleaning device according to an embodiment of the present invention is used to move along the surface of an object to be cleaned to clean the surface of the object (e.g., the ground). The following takes the cleaning device as an integrated sweeping and mopping robot as an example to illustrate the structure of the cleaning device in this application. This embodiment is only used as an example and does not limit the technical scope of this application. It is understood that in other embodiments, the cleaning device may also be specifically other devices, such as a mopping robot, etc., which is not limited here.

[0034] The cleaning device includes a main housing, a drive wheel assembly 100 mounted therein, a dust collection assembly, and a power supply assembly (not shown). The drive wheel assembly 100 is used to move the cleaning device across a surface, the dust collection assembly is used to absorb dust and debris from the surface, and the power supply assembly is used to provide power to the drive wheel assembly 100 and the dust collection assembly. It is understood that the specific structure of the cleaning device is not limited and can be configured as needed.

[0035] The driving wheel assembly 100 includes a driving housing 10, a driving wheel unit 30, a rotating shaft 50 and an elastic member 70. The driving wheel unit 30, the rotating shaft 50 and the elastic member 70 are all connected to the driving housing 10. The driving wheel unit 30 is rotatably mounted on the driving housing 10 through the rotating shaft 50. The elastic member 70 is used to apply a force to the driving wheel unit 30 to extend out of the driving accommodating cavity.

[0036] Specifically, the driving housing 10 is a hollow shell-shaped structure, including a driving upper shell 12 and a driving lower shell 14. The driving upper shell 12 and the driving lower shell 14 are arranged in a first direction (eg Figure 1 The drive housing 10 is engaged with each other in the X direction in the embodiment of the present invention, thereby forming a drive accommodating cavity for accommodating the drive wheel unit 30. In the present application, the width direction of the drive housing 10 is the second direction (such as Figure 1 The longitudinal direction of the drive housing 10 is the third direction (eg Figure 1), and the first direction, the second direction and the third direction are perpendicular to each other.

[0037] The drive wheel unit 30 includes a reduction gearbox 31, a drive wheel 32, and a drive motor 33. The reduction gearbox 31 includes a reduction housing and a reduction gear set housed in the reduction housing. The reduction gearbox 31 has an input end and an output end on one side in the second direction, and the input end and the output end are spaced apart in the third direction. The drive motor 33 is mounted on one side in the second direction of the reduction gearbox 31 and connected to the input end. The drive wheel 32 is mounted on the side of the reduction gearbox 31 where the drive motor 33 is provided and connected to the output end. The central axis direction of the drive motor 33 and the central axis direction of the drive wheel 32 are both parallel to the second direction. In this way, the drive motor 33 drives the drive wheel 32 to rotate with the help of the reduction gearbox 31 to move the cleaning device on the surface of the object.

[0038] The rotating shaft 50 is cylindrical in structure. One end of the rotating shaft 50 is connected to a side wall of the lower drive housing 14 in the second direction. The other end of the rotating shaft 50 passes through the reduction gearbox 31 in the second direction and is connected to the other side wall of the lower drive housing 14 in the second direction. In this way, the drive wheel unit 30 can swing around the rotating shaft 50, thereby floating up and down according to different terrain and adapting to different environments.

[0039] As described in the background technology, the assembly of the drive wheel assembly 100 in the prior art is relatively cumbersome, especially the installation of the elastic member 70. The elastic member 70 is usually installed at the deepest part of the drive housing 10 before the drive wheel unit 30 is installed in the drive housing 10. After the drive wheel unit 30 is installed, the elastic member 70 and the drive wheel unit 30 need to be connected to each other, which increases the difficulty of assembling the drive wheel assembly 100 and reduces the assembly efficiency of the drive wheel assembly 100.

[0040] To address the aforementioned issues, the drive housing 10 of the present application further comprises a connecting slot 1212 that connects the drive housing chamber to the external environment. The drive wheel unit 30, housed within the drive housing chamber, partially protrudes from the connecting slot 1212. An elastic member 70 is positioned outside the drive housing chamber, with one end of the elastic member 70 coupled to the drive housing 10 and the other end of the elastic member 70 coupled to the portion of the drive wheel unit 30 that protrudes from the connecting slot 1212.

[0041] In this way, the elastic member 70 is independently installed outside the drive accommodating cavity, so the installation of the elastic member 70 does not interfere with the installation of the drive wheel unit 30. The elastic member 70 can be installed after the drive wheel unit 30 is installed in the drive accommodating cavity, thereby simplifying the disassembly and assembly steps of the elastic member 70 and improving the assembly efficiency of the drive wheel assembly 100.

[0042] Specifically, the drive upper housing 12 includes a top wall 121 and a side wall 123 extending from the edge of the top wall 121 toward the drive lower housing 14. The side wall 123 circumferentially surrounds the top wall 121. An elastic member mounting groove 1211 is defined on one side of the top wall 121 in the second direction, communicating with the side wall 123. The elastic member mounting groove 1211 extends longitudinally along the edge of the top wall 121 in the third direction. A connecting slot 1212 is defined at one end of the elastic member mounting groove 1211 in the third direction, proximate to the drive motor 33.

[0043] The drive wheel unit 30 includes a first fixing member 35, one end of which is connected to the end of the reduction gearbox 31 equipped with the drive motor 33, and the other end of the first fixing member 35 protrudes in the second direction to connect to the empty slot 1212. The drive housing 10 includes a second fixing member 125, which is protruding from the slot wall of the elastic member mounting slot 1211 in the third direction, away from the empty slot 1212.

[0044] In this way, the elastic member 70 is accommodated in the elastic member mounting groove 1211 on the side of the upper shell top wall 121 away from the drive accommodating chamber, and the elastic member 70 extends longitudinally along the third direction. The two ends of the elastic member 70 are respectively connected to the first fixing member 35 and the second fixing member 125, so that a component force along the first direction can be applied to the driving wheel unit 30 so that the driving wheel 32 always maintains a certain ground force.

[0045] In some embodiments, the driving wheel assembly 100 also includes a lift-off switch 90 for detecting the position of the driving wheel unit 30. A switch accommodating cavity 1213 connected to the driving accommodating cavity is provided on the top wall 121 of the upper shell in the second direction away from the elastic member mounting groove 1211. The lift-off switch 90 is accommodated in the switch accommodating cavity 1213 and is connected to the external control structure through a lift-off switch line.

[0046] Specifically, the lift-off switch 90 has a compressible spring sheet, and the driving wheel unit 30 includes a trigger member 34 for resisting the spring sheet of the lift-off switch 90 . The trigger member 34 is protruded from one side of the reduction gearbox 31 in the second direction and faces the lift-off switch 90 .

[0047] When the cleaning device is supported on a surface, the drive wheel unit 30 is supported by the surface and is in a first position away from the lift-off switch 90. At this time, the trigger member 34 is separated from the lift-off switch 90, and the drive motor 33 can operate normally to drive the drive wheel 32 to rotate. When the cleaning device completely leaves the surface (for example, when it is completely lifted off the surface), the support from the surface below the drive wheel 32 disappears, so the reduction gear box 31 swings downward around the rotation axis 50 to the second position that triggers the lift-off switch 90. The trigger member 34 compresses the spring on the lift-off switch 90, thereby triggering the lift-off switch 90. The micro switch sends a signal to control the drive motor 33 to stop working, thereby preventing the drive wheel 32 from idling and doing useless work to save energy.

[0048] Combine Figure 3 As shown, Figure 3 FIG. 1 shows a schematic structural diagram of a driving wheel assembly 100 in an embodiment of the present invention.

[0049] To guide the routing of the ground-lift switch cables, in some embodiments, the upper housing sidewall 123 defines a side cable outlet hole 1232. Side cable outlet hole 1232 is located at one end of the upper housing sidewall 123 distal from the second fixing member 125 in the third direction and on a side distal from the first fixing member 35 in the second direction. A first top cable trough 1215 is defined on the upper housing top wall 121, and a side cable trough 1234 is defined on the upper housing sidewall 123. The first top cable trough 1215 includes a first cable segment 1215a and a second cable segment 1215b. One end of the first cable segment 1215a connects to the switch accommodating cavity 1213, and the other end of the first cable segment 1215a extends along the second direction to the edge of the upper housing top wall 121. One end of the side cable trough 1234 connects to the second cable segment 1215b, and the other end of the side cable trough 1234 extends toward the lower drive housing 14 until it connects to the side cable outlet hole 1232.

[0050] Combine Figure 4 As shown, Figure 4 FIG. 1 is a schematic structural diagram of the driving wheel assembly 100 in an embodiment of the present invention from another angle.

[0051] In other embodiments, the upper housing top wall 121 defines a top cable outlet 1214 and a second top cable routing trough 1216. The top cable outlet 1214 is located on one end of the upper housing top wall 121 in the third direction, near the end of the slot 1212. One end of the second top cable routing trough 1216 connects to the end of the switch accommodating cavity 1213 away from the top cable outlet 1214. The other end of the second top cable routing trough 1216 extends approximately along the third direction along the edge of the open end of the switch accommodating cavity 1213 and connects to the top cable outlet 1214. In this manner, one end of the off-ground switch cable is connected to the off-ground switch 90, while the other end of the off-ground switch cable passes through the second top cable routing trough 1216 and exits the top cable outlet 1214.

[0052] In this way, the routing of the ground lift switch line will not be interfered by the elastic member 70 , the line outlet method is simple, and the assembly efficiency of the driving wheel assembly 100 is effectively improved.

[0053] Furthermore, the drive wheel assembly 100 also includes a drive motor cable, and the drive wheel unit 30 includes a cable routing clamp 36. The cable routing clamp 36 forms a drive motor cable routing channel around the first fixing member 35 on a side away from the trigger member 34. One end of the drive motor cable is connected to one end of the drive motor 33, and the other end of the drive motor cable extends in the second direction. Then, guided by the drive motor cable routing channel, it bypasses the first fixing portion and exits through the top cable outlet 1214 or the side cable outlet 1232.

[0054] Specifically, the drive wheel unit 30 includes a first routing limit clamp and a second routing limit clamp. The first routing limit clamp is located on the side of the first fixing member 35 facing the drive wheel 32, and the second routing limit clamp is located on the side of the second fixing member 125 away from the drive wheel 32. The first routing limit clamp includes two first limiting portions, which are spaced apart in the third direction to form a first limiting gap. The second routing limit clamp includes two second limiting portions, which are spaced apart in the third direction to form a second limiting gap. The first limiting gap and the second limiting gap together define a routing channel for the drive motor. It will be appreciated that the shape and position of the routing limit clamps are not limited and can be configured to meet different requirements.

[0055] In this way, under the guidance of the routing channel, the drive motor line passes through the first routing limit clamp 36 and the second routing limit clamp 36 in sequence and is led out from the top routing hole 1214 or the side routing hole 1232. The routing method of the drive motor line is simple, and the drive motor line forms sufficient margin by being wound around the routing limit clamp 36, thereby effectively avoiding the drive motor line from breaking due to the rotation of the drive wheel unit 30.

[0056] In the aforementioned drive wheel assembly 100 and cleaning equipment equipped therewith, since the elastic member 70 is independently mounted outside the drive housing chamber for accommodating the drive wheel unit 30, the installation of the elastic member 70 does not interfere with the installation of the drive wheel unit 30. This simplifies the installation of the elastic member 70 and improves the assembly efficiency of the drive wheel assembly 100. Furthermore, the ground lift switch wiring and the drive motor wiring can be arranged in different routing schemes as needed. This relatively simple routing scheme avoids interference with other components, further optimizing the structure of the drive wheel assembly 100 and the cleaning equipment.

[0057] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A driving wheel assembly, characterized in that: The driving wheel assembly comprises: A drive housing (10) comprises a drive upper housing (12) and a drive lower housing (14), wherein the drive upper housing (12) and the drive lower housing (14) are engaged with each other in a first direction to define a drive accommodating cavity, and the drive upper housing (12) is provided with a connecting slot (1212); A driving wheel unit (30) is accommodated in the driving accommodating cavity and partially protrudes out of the connecting slot (1212), wherein the driving wheel unit (30) is capable of rotating around an axis relative to the driving housing (10); and An elastic member (70) is located outside the drive accommodating cavity, one end of the elastic member (70) is connected to a portion of the drive wheel unit (30) that protrudes out of the connecting slot (1212), and the other end of the elastic member (70) is connected to the drive housing (10). The elastic member (70) is used to apply a force to the drive wheel unit (30) to cause the drive wheel unit (30) to extend out of the drive accommodating cavity.

2. The driving wheel assembly according to claim 1, characterized in that: The driving upper shell (12) comprises an upper shell top wall (121) and an upper shell side wall (123), wherein the upper shell side wall (123) extends from the edge of the upper shell top wall (121) toward the driving lower shell (14), and the elastic member (70) is mounted on the upper shell top wall (121).

3. The driving wheel assembly according to claim 2, characterized in that: An elastic member installation groove (1211) communicating with the upper shell side wall (123) is provided on one side of the upper shell top wall (121) in the second direction, the elastic member installation groove (1211) extending longitudinally along the third direction, the connecting slot (1212) being provided at one end of the elastic member installation groove (1211) in the third direction, the elastic member (70) being received in the elastic member installation groove (1211) and extending longitudinally along the third direction; The first direction, the second direction and the third direction are perpendicular to each other.

4. The driving wheel assembly according to claim 3, characterized in that: The driving wheel unit (30) includes a first fixing member (35), the first fixing member (35) protruding from the connecting slot (1212) along the second direction; the driving housing (10) also includes a second fixing member (125), the second fixing member (125) protruding from the slot wall of the elastic member mounting slot (1211) and located at an end of the elastic member mounting slot (1211) away from the connecting slot (1212) in the third direction; and the two ends of the elastic member (70) are respectively connected to the first fixing member (35) and the second fixing member (125).

5. The driving wheel assembly according to claim 2, characterized in that: The driving wheel assembly further comprises a ground-lift switch (90) for detecting the position of the driving wheel unit (30); the upper shell top wall (121) is provided with a switch accommodating cavity (1213) communicating with the driving accommodating cavity; the ground-lift switch (90) is accommodated in the switch accommodating cavity (1213).

6. The driving wheel assembly according to claim 5, characterized in that: The upper shell side wall (123) is provided with a side wire outlet hole (1232), the upper shell top wall (121) is provided with a first top wire outlet groove, the upper shell side wall (123) is provided with a side wire outlet groove, and the switch accommodating cavity (1213) and the side wire outlet hole (1232) are connected to each other through the first top wire outlet groove and the side wire outlet groove.

7. The driving wheel assembly according to claim 5, characterized in that: The upper shell top wall (121) is provided with a top wire outlet hole (1214) and a second top wire outlet groove, and the switch accommodating cavity (1213) and the top wire outlet hole (1214) are communicated with each other through the second top wire outlet groove.

8. A cleaning device, characterized in that: Comprising the drive wheel assembly according to any one of claims 1 to 7.

9. The cleaning device according to claim 8, characterized in that The cleaning device is a sweeping robot, a mopping robot or a sweeping and mopping robot.

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