CN214631977U - Driving wheel assembly and cleaning equipment - Google Patents

Abstract

The utility model relates to a drive wheel subassembly and cleaning device, the drive wheel subassembly includes: a reduction gearbox having an input and an output; the driving wheel is arranged on the reduction gearbox and connected with the output end of the reduction gearbox; the driving motor is arranged on the reduction gearbox and connected with the input end of the reduction gearbox, and the driving motor drives the driving wheel to rotate by means of the reduction gearbox; the rotating shaft penetrates through the reduction gearbox, and the reduction gearbox can swing by taking the rotating shaft as a rotating shaft under the action of external force; wherein, driving motor is located the radial direction one side of drive wheel, and the axis of rotation is located the drive wheel towards one side of driving motor. Above-mentioned drive wheel subassembly, the biggest radius of rotation of drive wheel unit is the biggest distance of the relative axis of rotation of the excircle of drive wheel, and this distance is far less than among the prior art drive wheel unit's radius of rotation to effectively reduced the space and taken up, made the part in the cleaning device arrange compacter, cleaning device's volume can further reduce.

Description

Driving wheel assembly and cleaning equipment

Technical Field

The utility model relates to an intelligence electrical apparatus technical field especially relates to a drive wheel subassembly and cleaning equipment.

Background

With the progress of science and technology and the development of society, cleaning equipment such as a floor sweeping robot, a floor mopping robot or a mopping and sweeping integrated robot for cleaning indoor floors gradually enter the lives of people. The cleaning equipment can automatically detect factors such as room size, furniture placement and ground cleanliness, and a reasonable cleaning route is formulated by means of a built-in program to clean the ground, so that the cleaning equipment is popular with people, is more and more widely applied to the life of people, obviously reduces the burden of people, and brings great convenience to the life of people.

The driving wheel assembly is an indispensable important structure of the cleaning equipment as a structure for driving the cleaning equipment to move, and can swing within a certain range to adapt to different terrain conditions. However, the driving wheel assembly of the current cleaning device has a larger rotation radius, so that more space is required, which is not favorable for further miniaturization of the volume of the cleaning device.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the great problem of cleaning device's drive wheel subassembly's turning radius, provide a drive wheel subassembly and cleaning device, this drive wheel subassembly and cleaning device can reach the technical effect who reduces drive wheel subassembly's turning radius.

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

a reduction gearbox having an input and an output;

the driving wheel is arranged on the reduction gearbox and is connected with the output end of the reduction gearbox; and

the driving motor is arranged on the reduction gearbox and connected with the input end of the reduction gearbox, and the driving motor drives the driving wheel to rotate by means of the reduction gearbox; and

the rotating shaft penetrates through the reduction gearbox, and the reduction gearbox can swing by taking the rotating shaft as a rotating shaft under the action of external force;

the driving motor is located on one side of the driving wheel in the radial direction, and the rotating shaft is located on one side of the driving wheel facing the driving motor.

In one embodiment, the axial direction of the driving motor is parallel to the axial direction of the driving wheel, and the rotating shaft penetrates through the reduction gearbox along the axial direction of the driving motor.

In one embodiment, the driving wheel assembly further includes a ground lift switch located on one side in the axial direction of the driving wheel.

In one embodiment, one end of the driving motor in the axial direction protrudes from the driving wheel, and the ground switch is located on one side of the driving wheel facing the protruding direction of the driving motor.

According to another aspect of the present application, there is provided a cleaning device comprising the above-mentioned driving wheel assembly, and further comprising a main housing, wherein the driving wheel assembly is mounted in the main housing.

In one embodiment, the drive motor is located in front of the drive wheel in the forward direction of the cleaning device.

In one embodiment, the cleaning device further comprises a rolling brush assembly, a part of the rolling brush assembly is positioned on one side of the driving wheel facing the driving motor, and the advancing direction of the cleaning device is the same as the direction of the rolling brush assembly pointed by the driving wheel.

In one embodiment, the main housing includes a lower housing and an upper housing that are fastened to each other in a first direction, and the driving wheel assembly is installed in the lower housing from a side of the lower housing facing the upper housing.

In one embodiment, the rotational axis of the driving wheel assembly is located at a side of the driving wheel assembly facing the lower case.

In one embodiment, the lower casing further comprises a lower casing main body and a driving casing, the lower casing main body and the driving casing are integrally formed, the driving casing defines a driving accommodating cavity, a first opening end is arranged at one end, facing the upper casing, of the driving accommodating cavity, and the driving wheel assembly is accommodated in the driving accommodating cavity through the first opening end.

In one embodiment, the driving wheel assembly further includes an elastic member, the elastic member is disposed at the first opening end of the driving accommodating cavity, one end of the elastic member is coupled to one side of the reduction gearbox facing the upper shell, the other end of the elastic member is coupled to one side of the driving housing facing the upper shell, and the elastic member is used for applying an acting force far away from the upper shell to the reduction gearbox.

In one embodiment, the cleaning device is a sweeping robot, a mopping robot or a sweeping and mopping integrated robot.

In the driving wheel assembly, the maximum rotating radius of the driving wheel unit is the maximum distance between the outer circular surface of the driving wheel and the rotating shaft, and the distance is far smaller than the rotating radius (the sum of the outer diameter of the driving motor and the outer diameter of the driving wheel) of the driving wheel unit in the prior art, so that the occupied space is effectively reduced, the arrangement of parts in the cleaning equipment is more compact, and the volume of the cleaning equipment can be further reduced.

Drawings

Fig. 1 is an exploded view of a part of the structure of a cleaning device according to an embodiment of the present invention;

fig. 2 is a schematic view of an installation of a drive wheel assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a driving wheel unit according to an embodiment of the present invention;

fig. 4 is an exploded view of a drive wheel assembly according to an embodiment of the present invention;

fig. 5 is a schematic view illustrating an installation of a ground disconnect switch according to an embodiment of the present invention;

fig. 6 is an assembled view of the ground disconnect switch shown in fig. 5;

fig. 7 is an installation diagram of a ground isolating switch according to an embodiment of the present invention;

fig. 8 is an assembled view of the ground disconnect switch shown in fig. 7;

fig. 9 is a schematic diagram of routing according to an embodiment of the present invention;

fig. 10 is a schematic view of another angle of the routing according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a driving housing according to an embodiment of the present invention.

The reference numbers illustrate:

100. cleaning equipment; 20. a main housing; 21. a lower case; 212. a lower case main body; 214. a drive housing; 2141. a drive receiving chamber; 2143. a switch accommodating chamber; 22. an upper shell; 23. a bottom cover; 25. a motor wiring clamp; 26. a motor wiring limiting part; 261. a motor wiring groove; 27. a switch wiring limiting part; 272. a switch wiring groove; 40. a drive wheel assembly; 41. a drive wheel unit; 412. a reduction gearbox; 4121. a first reduction housing; 4123. a second reduction housing; 4125. a trigger; 414. a drive wheel; 416. a drive motor; 42. a rotating shaft; 43. an elastic member; 44. an off-ground switch; 441. a spring plate; 45. a drive motor wire; 46. an off-ground switch line; 47. a speed reduction box wire feeding clamp; 60. a positioning column; 70. a switch mounting plate; 80. a longitudinal fastener; 90. and a transverse fastener.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. 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, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Fig. 1 is an exploded schematic view showing a partial structure of a cleaning device according to an embodiment of the present invention; fig. 2 shows a schematic view of the installation of the driving wheel assembly in an embodiment of the present invention.

Referring to fig. 1 to 2, a cleaning apparatus 100 according to an embodiment of the present invention is used for moving along a surface of an object to be cleaned to clean the surface of the object (e.g., a floor). The following describes the structure of the cleaning device 100 in the present application, taking the cleaning device 100 as an example of a sweeping and mopping integrated robot. The present embodiment is described as an example, and the technical scope of the present application is not limited thereto. It is understood that in other embodiments, the cleaning device 100 may also be embodied as other devices, such as a floor mopping robot, and the like, without limitation.

The cleaning device 100 includes a main housing 20, a driving wheel assembly 40 mounted on the main housing 20, a dust suction assembly, and a power supply assembly (not shown). The driving wheel assembly 40 is used for driving the cleaning device 100 to move on the surface of an object, the dust collection assembly is used for adsorbing dust and sundries on the surface of the object, and the power supply assembly is used for providing working electric energy for the driving wheel assembly 40 and the dust collection assembly. It is to be understood that the specific configuration of the cleaning device 100 is not limited and may be set as desired.

The main housing 20 includes a lower housing 21, an upper housing 22 and a bottom cover 23, the lower housing 21 includes a lower housing main body 212 and a driving housing 214, the lower housing main body 212 and the upper housing 22 are mutually fastened in a first direction (i.e. X direction in fig. 1), the bottom cover 23 is coupled to one side of the lower housing main body 212 far away from the upper housing 22, the driving housing 214 is disposed on one side of the lower housing main body 212 facing the upper housing 22 and is integrally formed with the lower housing main body 212, and the driving housing 214 is enclosed to form a driving accommodating cavity 2141 for accommodating the driving wheel assembly 40. The driving accommodating cavity 2141 includes a first open end and a second open end that are opposite to each other in the first direction and are communicated with each other, the first open end is located at a side of the driving accommodating cavity 2141 facing the upper shell 22, and the second open end is located at a side of the driving accommodating cavity 2141 away from the upper shell 22.

So, compare in the drive wheel subassembly among the prior art accommodate in the shell with inferior valve 21 independent setting, drive casing 214 in this application forms with inferior valve main part 212 integrated into one piece, consequently can with drive wheel subassembly 40 direct mount in inferior valve 21, and need not additionally to set up the cladding in the outer shell of drive wheel subassembly 40 to save part quantity and arranged the space, improved assembly efficiency simultaneously.

Referring to fig. 3 and 4, fig. 3 is a schematic structural diagram of a driving wheel unit in an embodiment of the present invention; fig. 4 shows an exploded view of a drive wheel assembly in an embodiment of the invention.

In some embodiments, the driving wheel assembly 40 includes a driving wheel unit 41, and the driving wheel unit 41 is received in the driving accommodating cavity 2141 from the first opening end along the first direction. The driving wheel unit 41 comprises a reduction gearbox 412, a driving wheel 414 and a driving motor 416, wherein the reduction gearbox 412 is provided with an input end and an output end, the driving motor 416 is arranged on the reduction gearbox 412 and is in transmission connection with the input end of the reduction gearbox 412, and the driving wheel 414 is arranged on the reduction gearbox 412 and is in transmission connection with the output end of the reduction gearbox 412. Thus, the driving motor 416 is drivingly connected to the driving wheel 414 through the reduction box 412, and the driving motor 416 drives the driving wheel 414 to rotate by means of the reduction box 412 to drive the cleaning device 100 to move.

Specifically, the reduction gear box 412 includes a first reduction housing 4121, a second reduction housing 4123, and a reduction gear set. The first deceleration housing 4121 and the second deceleration housing 4123 are engaged with each other in a second direction (i.e., Y direction in fig. 1) perpendicular to the first direction to form a deceleration accommodating chamber. One side of the second decelerating housing 4123 away from the first decelerating housing 4121 is provided with a first limiting space and a second limiting space which are arranged at intervals in a third direction (i.e., Z direction in fig. 1) perpendicular to the first direction and the second direction, the first limiting space is used for limiting the driving wheel 414, the second limiting space is used for limiting the driving motor 416, and the second limiting space is located in front of the first limiting space in the advancing direction (i.e., F direction in fig. 1) of the cleaning apparatus 100. The speed reduction gear set is accommodated in the speed reduction accommodating cavity, the output end of the speed reduction gear set extends into the first limiting space, and the input end of the speed reduction gear set extends into the second limiting space.

The driving wheel 414 is limited in the first limit space of the reduction box 412 along the second direction, the axial direction of the driving wheel 414 extends along the first direction, and the driving wheel 414 is in transmission connection with the output end of the reduction gear set. The driving motor 416 is limited in the second limiting space of the reduction gearbox 412 along the second direction, the axial direction of the driving motor 416 extends along the first direction, and the output shaft of the driving motor 416 is in transmission connection with the input end of the reduction gear set.

As such, the driving motor 416 is located on one side in the radial direction of the driving wheel 414 and is disposed at an interval from the driving wheel 414 in the third direction, the axial direction of the driving motor 416 is parallel to the axial direction of the driving wheel 414, and the driving motor 416 is located in front of the driving wheel 414 in the forward direction of the cleaning apparatus 100. The first direction, the second direction and the third direction are pairwise vertical.

Compared with the prior art, in which the driving motor 416 is located behind the driving wheel 414 in the advancing direction of the cleaning device 100, the driving motor 416 in the present application is located in front of the driving wheel 414 in the advancing direction of the cleaning device 100, so that the side of the driving wheel 414 facing the driving motor 416 has a larger friction force with the floor under the pressure of the driving motor 416, and therefore, the driving wheel 414 has a better obstacle crossing capability when facing a front obstacle during the advancing process of the cleaning device 100, thereby further improving the performance of the cleaning device 100.

Further, the radial dimension of the driving wheel 414 is larger than that of the driving motor 416, and the driving wheel 414 protrudes toward the lower case 21 in the first direction, so that a side of the driving wheel 414 facing the driving motor 416 forms an accommodating space into which a portion of the brush roll assembly (or other mechanism located in front of the driving wheel assembly 40 in the advancing direction of the cleaning apparatus 100) can protrude, the advancing direction of the cleaning apparatus 100 being the same as the direction directed toward the brush roll assembly by the driving wheel 414.

As such, the cleaning apparatus 100 of the present application utilizes the size difference between the driving motor 416 and the driving wheel 414 in the first direction to accommodate the rolling brush assembly located in front of the driving wheel assembly 40 in the advancing direction of the cleaning apparatus 100, so that the overall structure of the cleaning apparatus 100 is more compact, and the volume of the rolling brush assembly or other mechanisms can be further increased without changing the overall volume of the cleaning apparatus 100. In the prior art, since the driving wheel 414 is located in front of the driving motor 416 in the forward direction of the cleaning apparatus 100, the driving wheel 414 occupies a space in the first direction, so that the components having a large space occupation, such as the brush roller assembly, can be located only on one side of the driving wheel assembly 40 in the third direction, thereby increasing the size of the cleaning apparatus 100 in the first direction.

It is understood that the forward direction of the cleaning device 100 in this application refers to the direction of movement of the cleaning device during normal sweeping. And when the cleaning apparatus 100 touches an obstacle, the cleaning apparatus moves backward in a direction opposite to the forward direction to avoid the obstacle.

In some embodiments, the drive wheel assembly 40 further includes a rotating shaft 42. The central axis of the rotating shaft 42 extends along the second direction, one end of the rotating shaft 42 is coupled to the cavity wall of the driving accommodating cavity 2141, the other end of the rotating shaft 42 passes through the reduction gearbox 412 along the second direction and is coupled to the cavity wall of the driving accommodating cavity 2141, and the reduction gearbox 412 can swing around the rotating shaft 42 under the action of external force so as to extend out of the lower shell 21 or retract into the main shell 20 in the first direction. In this way, the driving wheel unit 41 can automatically swing under the action of external force to adapt to different working conditions.

Preferably, the rotation shaft 42 is located in an accommodating space formed between the driving wheel 414 and the driving motor 416 (i.e., on a side of the driving wheel 414 facing the driving motor 416) in the advancing direction of the cleaning apparatus 100, and the rotation shaft 42 is located below the driving motor 416 in a direction in which the driving wheel 414 protrudes out of the lower case 21.

In this way, compared to the prior art in which the rotating shaft 42 is located on the side of the driving motor 416 away from the driving wheel 414, the maximum rotating radius of the driving wheel unit 41 of the present application is the maximum distance between the outer circumferential surface of the driving wheel 414 and the rotating shaft 42, and this distance is much smaller than the rotating radius of the prior art driving wheel unit (the sum of the outer diameter of the driving motor 416 and the outer diameter of the driving wheel 414), so that the occupied space is effectively reduced, the arrangement of the parts in the cleaning apparatus 100 is more compact, and the volume of the cleaning apparatus 100 can be further reduced.

In some embodiments, the driving wheel assembly 40 further includes an elastic member 43 (e.g., a spring), one end of the elastic member 43 is coupled to a side of the reduction gear box 412 away from the lower case 21 and is located at an end of the reduction gear box 412 where the driving motor 416 is provided, and the other end of the elastic member 43 extends obliquely in the third direction to be coupled to the driving housing 24. The elastic member 43 is used to apply a force to the reduction gear box 412 away from the upper case 22 so that the driving wheel 414 has a certain ground contact force to maintain sufficient contact with the surface of the object.

Because the drive assembly of this application does not set up solitary shell, compare in prior art before parts such as reducing gear box 412 install elastic component 43 from bottom to top to the shell in, elastic component 43 in this application can install along first direction from top to bottom alone installation behind main casing body 20 at drive wheel unit 41, consequently makes elastic component 43's installation more convenient, has effectively improved production efficiency.

With reference to fig. 5 to 8, fig. 5 is a schematic installation diagram of a ground isolating switch according to an embodiment of the present invention; fig. 6 shows an assembly diagram of a ground disconnect switch according to an embodiment of the present invention; fig. 7 shows a schematic installation diagram of a ground disconnect switch according to an embodiment of the present invention; fig. 8 shows an assembly diagram of a ground disconnect switch according to an embodiment of the present invention.

In some embodiments, the drive wheel assembly 40 also includes a ground-off switch 44 for detecting the position of the drive wheel 414. The driving housing 24 includes a switch accommodating cavity 2143, the switch accommodating cavity 2143 is located at a side of the second direction of the drive accommodating cavity 2141 close to the edge of the main housing 20 and communicates with the drive accommodating cavity 2141, a ground switch 44 is mounted in the switch accommodating cavity 2143 along the second direction and located at a side of the driving wheel 414 in the axial direction, the ground switch 44 has a spring piece 441 that can be compressed. The driving wheel unit 41 includes a trigger 4125 for abutting against the elastic piece 441 of the ground switch 44, and the trigger 4125 is protruded from one side of the reduction box 412 in the second direction.

When the cleaning device 100 is supported on the object surface, the driving wheel unit 41 is supported by the object surface and located at a first position away from the floor switch 44, and the trigger 4125 is separated from the floor switch 44, the driving motor 416 can normally operate to drive the driving wheel 414 to rotate.

When the cleaning device 100 is completely removed from the surface of the object (e.g., when the cleaning device is completely lifted off the surface of the object), the support from the surface of the object under the driving wheel 414 is lost, so that the reduction gearbox 412 swings down around the rotating shaft 42 to the second position where the ground switch 44 is triggered, the trigger 4125 compresses the elastic piece 441 on the ground switch 44 to trigger the ground switch 44, and the micro switch sends a signal to control the driving motor 416 to stop working, thereby avoiding the idle-running idle-work state of the driving wheel 414 to save electric energy.

In this way, compared to the prior art in which the ground switch 44 is located above the driving wheel 414 in the radial direction, the ground switch 44 of the present application is located in the axial direction of the driving wheel 414 and is separately accommodated in the switch accommodating cavity 2143 which is independent from the drive accommodating cavity 2141, so that while the installation manner of the ground switch 44 is simplified, dust and foreign objects on the driving wheel 414 can be effectively prevented from entering other areas in the main housing 20 through the switch accommodating cavity 2143 to cause damage to other components. However, in the prior art, since the switch receiving cavity 2143 is generally located above the drive receiving cavity 2141 to communicate with other regions in the main housing 20, dust and foreign materials on the driving wheel 414 may enter other regions in the main housing 20 through the switch receiving cavity 2143 to damage other components. In addition, the trigger 4125 can limit the position of the driving wheel assembly 40, and when the cleaning device 100 is completely away from the surface of the object, the trigger 4125 can prevent the driving wheel assembly 40 from further swinging downward without providing an additional limiting member. In the prior art, the ground switch 44 is located above the driving wheel 414 in the radial direction, and therefore cannot function as a limit.

As shown in fig. 5 and 6, particularly in some embodiments, the cleaning apparatus 100 includes two positioning posts 60, a switch mounting plate 70, and a longitudinal fastener 80. The two positioning columns 60 are arranged at intervals in the third direction, the central axis of each positioning column 60 extends along the second direction, one end of each positioning column 60 is fixedly connected to the cavity wall of the switch accommodating cavity 2143, and the other end of each positioning column 60 penetrates through the ground switch 44 along the second direction. The switch mounting plate 70 is abutted against the side of the ground switch 44 close to the second switch end along the first direction, and the longitudinal fastener 80 is inserted into the cavity wall of the switch accommodating cavity 2143 through the switch mounting plate 70 along the first direction and is in threaded connection with the cavity wall of the switch accommodating cavity 2143.

In this manner, the positioning post 60, the longitudinal fastener 80, and the switch mounting plate 70 cooperate to securely fix the grounding switch 44 in the switch receiving cavity 2143. Further, since the floor switch 44 is fixed from the outside in the first direction by the vertical fastening member 80, the efficiency of attaching and detaching the floor switch 44 is improved.

As shown in fig. 7 and 8, particularly in other embodiments, the cleaning apparatus 100 includes a positioning post 60 and a transverse fastener 90. The central axis of the positioning column 60 extends along the second direction, one end of the positioning column 60 is fixedly connected to the cavity wall of the switch accommodating cavity 2143, and the other end of the positioning column 60 penetrates through the ground switch 44 along the second direction. The transverse fastening member 90 is spaced from the positioning column 60 in the third direction, the central axis of the transverse fastening member 90 extends in the second direction, and the transverse fastening member 90 is inserted into the cavity wall of the switch accommodating cavity 2143 through the ground switch 44 in the second direction. In this manner, the positioning post 60 and the lateral fastener 90 cooperate to securely fix the ground switch 44 in the switch receiving cavity 2143.

It is understood that the installation position and the installation manner of the ground switch 44 are not limited thereto, and may be set as needed to meet different needs.

With reference to fig. 9 to 11, fig. 9 is a schematic diagram of a trace according to an embodiment of the present invention; fig. 10 is a schematic diagram of another angle of the routing according to an embodiment of the present invention; fig. 11 shows a schematic structural diagram of a driving housing according to an embodiment of the present invention.

In some embodiments, to enable electrical connection of the drive motor 416 and the ground disconnect switch 44 to external control structures, the drive wheel assembly 40 further includes a drive motor wire 45 and a ground disconnect switch wire 46.

In order to guide and limit the driving motor line 45 and the ground-off switch line 46, the reduction box 412 is provided with a reduction box motor routing channel, one side of the driving shell 24 of the main shell 20, which is provided with the driving accommodating cavity 2141, is provided with a main shell motor routing channel and a switch routing channel, and the main shell motor routing channel is communicated with the reduction box motor routing channel. One end of the driving motor line 45 is electrically connected to one axial end of the driving motor 416, and the other end of the driving motor line 45 sequentially penetrates through the reduction gearbox motor wiring channel and the main casing motor wiring channel to be connected with an external control structure. One end of the ground switch wire 46 is electrically connected to the ground switch 44, and the other end of the ground switch wire 46 passes through the switch wiring path and the partial main housing motor wiring path to be electrically connected to the external control structure.

Therefore, the driving motor line 45 and the ground switch 44 are independently wired, the wiring line is simple, and the wiring efficiency is improved.

Specifically, the driving wheel assembly 40 includes a plurality of reduction gearbox routing clips 47, the plurality of reduction gearbox routing clips 47 are sequentially arranged on one side of the reduction gearbox 412 facing the second opening end along the second direction, each reduction gearbox routing clip 47 includes reduction gearbox routing clamping portions arranged at intervals in the direction perpendicular to the second direction, two reduction gearbox routing clamping portions define and form a reduction gearbox routing gap, and a plurality of reduction gearbox routing gaps are mutually communicated to jointly form a reduction gearbox motor routing channel. The gearbox motor routing channel is located on one side of the gearbox 412 facing the second open end, is located on one side of the rotating shaft 42 in the radial direction, and is substantially parallel to the extending direction of the rotating shaft 42.

Because the rotating shaft 42 is located between the driving wheel 414 and the driving motor 416, and the reduction gearbox motor wiring channel is arranged adjacent to the rotating shaft 42, when the reduction gearbox 412 swings around the rotating shaft 42, the driving motor wire 45 penetrating the reduction gearbox motor wiring channel cannot be pulled, and therefore the driving motor wire 45 is prevented from being broken. Compared with the driving motor wire in the prior art, the driving motor wire is bent for 180 degrees after extending along the axial direction of the driving motor 416, the wiring line in the application is simpler, and therefore the assembly of the driving wheel assembly 40 is more convenient.

The main shell motor wiring channel comprises a first motor wiring section, a second motor wiring section and a third motor wiring section. One end of the first motor route segment is communicated with the reduction gearbox motor route channel, and the other end of the first motor route segment extends towards the direction far away from the driving motor 416 along the third direction. One end of the second motor route segment is communicated with the first motor route segment, and the other end of the second motor route segment extends towards the first opening end along the first direction. One end of the third motor route segment is communicated with the second motor route segment, and the other end of the third motor route segment extends in a direction away from the driving wheel 414 along the third direction.

Specifically, the main housing 20 includes at least two motor routing clips 25, the at least two motor routing clips 25 are sequentially arranged on the outer sidewall of the driving housing 24 close to one side of the ground-off switch 44 in the second direction along the third direction, each motor routing clip 25 has a first housing routing gap extending along the third direction, and the at least two first housing routing gaps are communicated with each other to form a first motor routing segment.

The main housing 20 includes a motor trace limiting element 26, the motor trace limiting element 26 is disposed at an interval along the second direction on an outer sidewall of the driving housing 24 (i.e., an outer wall of the driving accommodating cavity), and is located on a side of the driving housing 24 where the switch accommodating cavity 2143 is disposed. A motor wiring groove 261 extending along the first direction is formed on one side of the motor wiring limiting piece 26 away from the driving shell 24 to form a second motor wiring segment, and a third motor wiring segment is formed between the motor wiring limiting piece 26 and the driving shell 24.

Thus, the driving motor wire 45 extends from one end of the driving motor 416 to the other end of the driving motor 416 along the second direction under the guidance of the gearbox motor routing channel, then bends into the first motor route segment and extends along the third direction towards the direction away from the driving motor 416 under the guidance of the first motor route segment, then bends into the second motor route segment and extends along the first direction towards the direction of the first opening end under the guidance of the second motor route segment, and finally bends into the third motor route segment and extends along the third direction towards the direction away from the driving wheel 414 under the guidance of the third motor route segment.

The switch routing channel includes a first switch routing segment and a second switch routing segment, the first switch routing segment extends along a first direction, one end of the second switch routing segment is communicated with the first switch routing segment, and the other end of the second switch routing segment extends along a third direction towards a direction away from the driving wheel 414 until the third motor routing segment is communicated with the housing motor routing channel.

Specifically, the main housing 20 includes a switch trace limiting element 27, and the switch trace limiting element 27 is disposed at an interval along the second direction on an outer sidewall (i.e., an outer wall of the driving accommodating cavity) of one side of the driving housing 24 close to the ground switch 44, and is located on one side of the accommodating cavity of the ground switch 44 facing the first switch end in the first direction. One side of the switch trace limiting element 27 away from the driving accommodating cavity 2141 is formed with a switch trace groove 272 extending along the first direction to form a first switch trace segment. A second switch trace segment is formed between the switch trace limiting piece 27 and the outer sidewall of the driving shell 24. Preferably, the motor trace limiting piece 26 and the switch trace limiting piece 27 are arranged side by side in the third direction and are formed by integral molding.

In this manner, one end of the ground switch wire 46 is connected to the ground switch 44, and the other end of the ground switch wire 46 extends in the first direction toward the first open end under the guidance of the first switch route segment, then bends into the second switch route segment, and extends in the third direction toward the drive motor 416 under the guidance of the second switch route segment until entering the third motor route segment to merge with the drive motor wire 45.

In summary, the driving motor line 45 and the ground switch line 46 are respectively led out from the driving motor 416 and the ground switch 44, and then independently extend for a distance to be converged, so that the wiring line is simple, the problem of line breakage caused by an excessively large bending angle is avoided, and the assembly steps are simplified. It is understood that the routing manner of the driving motor line 45 and the ground switch line 46 is not limited thereto, and in other embodiments, other routing manners may be provided to meet different requirements.

In the above-mentioned driving wheel assembly 40 and the cleaning device 100, the driving housing 24 of the driving wheel assembly 40 is directly integrated on the main housing 20, thereby simplifying the structure of the cleaning device 100 and optimizing the installation manner. Moreover, since the driving motor 416 is located in front of the driving wheel 414 in the forward direction of the cleaning apparatus 100, the obstacle avoidance performance is better, and the components such as the rolling brush assembly can be accommodated by utilizing the radial dimension difference between the driving wheel 414 and the driving motor 416, so that the internal structure of the cleaning apparatus 100 is more compact. Further, since the ground-off switch 44 is provided on one side in the axial direction of the drive wheel assembly 40, it is possible to prevent dust and foreign matter on the drive wheel 414 from entering the inside of the main housing 20. In addition, the wiring mode of the driving motor line 45 connected with the driving motor 416 and the ground switch line 46 connected with the ground switch 44 is simpler, and the driving motor line 45 and the ground switch line 46 are effectively prevented from being broken.

Note that "above" in the present application refers to the upper side in fig. 1, and "below" in the present application refers to the lower side in fig. 1. The drive housing 241 in fig. 4 to 8 is only for reflecting the fitting relationship of the drive housing 24 and the drive wheel assembly 40, and actually, the drive housing 214 is always provided integrally with the lower case main body 212.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (12)

1. A drive wheel assembly, wherein said drive wheel assembly comprises:

a reduction gearbox (412) having an input and an output;

a drive wheel (414) mounted on the gearbox (412) and connected to the output of the gearbox (412); and

the driving motor (416) is arranged on the reduction gearbox (412) and is connected with the input end of the reduction gearbox (412), and the driving motor (416) drives the driving wheel (414) to rotate by means of the reduction gearbox (412); and

the rotating shaft (42) penetrates through the reduction gearbox (412), and the reduction gearbox (412) can swing by taking the rotating shaft (42) as a rotating shaft under the action of external force;

wherein the drive motor (416) is located on one side of the drive wheel (414) in the radial direction, and the rotation shaft (42) is located on one side of the drive wheel (414) facing the drive motor (416).

2. The drive wheel assembly according to claim 1, characterized in that the axial direction of the drive motor (416) is parallel to the axial direction of the drive wheel (414), and the rotation shaft (42) is disposed through the reduction gearbox (412) in the axial direction of the drive motor (416).

3. The drive wheel assembly of claim 1, further comprising a ground-off switch (44), the ground-off switch (44) being located on one side in the axial direction of the drive wheel (414).

4. The drive wheel assembly according to claim 3, wherein one end in the axial direction of the drive motor (416) protrudes from the drive wheel (414), and the ground-release switch (44) is located on a side of the drive wheel (414) toward the protruding direction of the drive motor (416).

5. A cleaning device comprising a drive wheel assembly according to any of claims 1 to 4, said cleaning device further comprising a main housing (20), said drive wheel assembly being mounted within said main housing (20).

6. A cleaning device according to claim 5, characterized in that the drive motor (416) is located in front of the drive wheel (414) in the forward direction of the cleaning device.

7. The cleaning apparatus according to claim 6, characterized in that the cleaning apparatus further comprises a roller brush assembly, part of which is located on the side of the drive wheel (414) facing the drive motor (416), the forward direction of the cleaning apparatus being the same as the direction directed by the drive wheel (414) towards the roller brush assembly.

8. The cleaning apparatus according to claim 5, wherein the main housing (20) includes a lower housing (21) and an upper housing (22) that are engaged with each other in a first direction, and the driving wheel assembly is installed in the lower housing (21) from a side of the lower housing (21) toward the upper housing (22).

9. Cleaning device according to claim 8, characterized in that the rotational axis (42) of the drive wheel assembly is located on the side of the drive wheel assembly facing the lower shell (21).

10. The cleaning apparatus according to claim 8, wherein the lower housing (21) further comprises a lower housing main body (212) and a driving housing (214), the lower housing main body (212) and the driving housing (214) are integrally formed, the driving housing (214) defines a driving accommodating cavity (2141), one end of the driving accommodating cavity (2141) facing the upper housing (22) is provided with a first opening end, and the driving wheel assembly is accommodated in the driving accommodating cavity (2141) through the first opening end.

11. The cleaning apparatus according to claim 10, wherein the driving wheel assembly further comprises an elastic member (43), the elastic member (43) is disposed at the first opening end of the driving accommodating cavity (2141), one end of the elastic member (43) is coupled to a side of the reduction gearbox (412) facing the upper housing (22), the other end of the elastic member (43) is coupled to a side of the driving housing (214) facing the upper housing (22), and the elastic member (43) is used for applying a force to the reduction gearbox (412) away from the upper housing (22).

12. The cleaning apparatus of any one of claims 5 to 11, wherein the cleaning apparatus is a sweeping robot, a mopping robot or a sweeping and mopping integrated robot.

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