Cleaning drum assembly, robot main body, and cleaning apparatus

Abstract

The present disclosure relates to a cleaning roller assembly, a robot mainframe and a cleaning device. The cleaning roller assembly comprises a roller support, a power element, a gear set, a rack and a wire wheel assembly. The gear set comprises a first end gear, a last end gear, a planetary gear set and a first rotating shaft. The first end gear is connected with the power element. The first rotating shaft is fixedly connected with a sun gear of the planetary gear set and the last end gear respectively. The rack is fixed to the roller support and engaged with the last end gear. The wire wheel assembly comprises a wire wheel and a cable. The wire wheel is rotatably sleeved on the first rotating shaft and engaged with a plurality of planetary gears of the planetary gear set respectively. One end of the cable is fixed to the wire wheel and the other end is fixed to the roller support. When the wire wheel assembly is in a limiting state, the power element drives the rack to translate. When the wire wheel assembly is in a movable state, the power element drives the wire wheel to rotate to wind or unwind the cable, so as to realize the lifting of the cleaning roller assembly. In this way, the volume of the cleaning roller assembly can be effectively reduced, and the manufacturing cost can be reduced.

Description

Technical Field

[0001] This disclosure relates to the field of electrical products, and more particularly to a cleaning roller assembly, a robot host, and cleaning equipment. Background Technology

[0002] With the rapid development of industrial technology, more and more electrical appliances are being used to improve people's quality of life, among which cleaning equipment such as sweepers are becoming increasingly popular. To better clean corners and edges, sweepers typically have an automatic outward-expanding roller function. However, this outward-expanding mechanism usually requires multiple motors to control lifting, extending, and retracting movements, resulting in an excessively large sweeper size and increased manufacturing costs. Utility Model Content

[0003] This disclosure provides a cleaning roller assembly, a robot host, and a cleaning device to address the shortcomings of related technologies.

[0004] According to a first aspect of the present disclosure, a cleaning roller assembly is provided, comprising:

[0005] Roller support;

[0006] Power components;

[0007] The gear set includes a head gear, an end gear, a planetary gear set, and a first rotating shaft. The head gear is connected to the power component, and the first rotating shaft is fixedly connected to the sun gear of the planetary gear set and the end gear, respectively.

[0008] A rack, which is fixed to the roller bracket and meshes with the end gear;

[0009] A reel assembly, comprising a reel and a cable, wherein the reel is rotatably mounted on the first shaft and meshes with a plurality of planetary gears of the planetary gear set, and one end of the cable is fixed to the reel and the other end is fixed to the roller bracket;

[0010] The reel assembly includes a limited state and an active state. When the reel assembly is in the limited state, the power component drives the rack to translate. When the reel assembly is in the active state and the rack is limited, the power component drives the reel to rotate to retract and extend the cable, thereby raising and lowering the cleaning roller assembly.

[0011] Optionally, it also includes a housing covering the reel, the housing including a first limiting part, the limiting state including a forward rotation limiting state;

[0012] When the reel assembly is in the forward rotation limit state, the first limiting part contacts the reel to restrict the forward rotation of the reel; the forward rotation of the reel releases the cable.

[0013] Optionally, the rack includes a toothed portion and a smooth portion arranged side by side, the toothed portion meshing with the end gear, the spool including a second limiting portion, and the limiting state including a reverse limiting state;

[0014] When the reel assembly is in the reverse limiting state, the second limiting part abuts against the smoothing part to restrict the reel from rotating in the reverse direction; the reel rotates in the reverse direction to collect the cable.

[0015] Optionally, the rack further includes a relief groove, which is recessed from the smooth portion along the thickness direction of the rack.

[0016] When the reel assembly is in the active state, the reel is located above the clearance groove, and there is a gap between the second limiting part and the periphery of the clearance groove.

[0017] Optionally, when the power component drives the rack to translate, the cleaning roller assembly switches between an outward swing state and an inward retraction state;

[0018] Furthermore, when the cleaning roller assembly switches to the outward swing state, the rotation of the power component is in the same direction as its rotation when the cleaning roller assembly descends.

[0019] Optionally, the spool includes a second limiting part, a transmission part, and a winding part. The inner circumference of the transmission part meshes with the plurality of planetary gears respectively. The winding part is located on the side of the transmission part away from the planetary gear set and is connected to the cable. The first rotating shaft passes through the winding part, and the second limiting part rotates synchronously with the winding part.

[0020] Optionally, along the radial direction of the transmission part, a portion of the second limiting part extends beyond the circumferential side of the winding part;

[0021] When the rack is translated, the second limiting part can slide or roll on the rack.

[0022] Optionally, the gear set further includes a transition gear, and the planetary gear set further includes a second rotating shaft that corresponds to each of the planetary gears. One end of the second rotating shaft is rotatably inserted through the planetary gear, and the other end is fixed to the transition gear.

[0023] The direction of rotation of the adapter gear is the same as that of the first end gear, and opposite to that of the spool.

[0024] Optionally, it also includes a first detection device and a second detection device, wherein the first detection device is triggered when the roller support is raised or lowered to the limit position, and the second detection device is triggered when the rack is translated to the limit position.

[0025] According to a second aspect of the present disclosure, a robot host is provided, including the cleaning roller assembly as described above.

[0026] According to a third aspect of the present disclosure, a cleaning device is provided, comprising:

[0027] Robot base;

[0028] As described above, the robot base is used for cleaning and charging the robot host.

[0029] As can be seen from the above embodiments, the cleaning roller assembly of this disclosure is equipped with a gear set with planetary gears, so that the power component can drive the rack to move horizontally, realizing the outward swing and inward retraction of the cleaning roller assembly, and at the same time drive the spool to rotate, realizing the lifting and lowering of the cleaning roller assembly. By time-division multiplexing of the power component, the number of motors can be reduced, thereby effectively reducing the volume of the cleaning roller assembly and reducing manufacturing costs.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0032] Figure 1 This is a perspective view of a cleaning roller assembly according to an exemplary embodiment.

[0033] Figure 2 yes Figure 1 A 3D view of the cleaning roller assembly with the roller support removed and in an outward swinging position.

[0034] Figure 3 yes Figure 2 A perspective view of the cleaning roller assembly further removing the reel assembly.

[0035] Figure 4 This is a schematic diagram illustrating a housing, a reel assembly, and a rack assembly in a cleaning roller assembly according to an exemplary embodiment.

[0036] Figure 5 yes Figure 2 A three-dimensional view of the cleaning roller assembly further removing the first rotating shaft and the adapter gear.

[0037] Figure 6 yes Figure 5 A side view of the cleaning roller assembly further removing the rack. Detailed Implementation

[0038] The technical solutions in the embodiments (or "implementations") of this disclosure will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0039] If this disclosure uses terms relating to directional indications or positional relationships (e.g., up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, terms such as "first" and "second" in this disclosure are used only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0040] Figure 1 This is a perspective view of a cleaning roller assembly according to an exemplary embodiment. Figure 2 yes Figure 1 A 3D view of the cleaning roller assembly with the roller support removed and in an outward swinging position. Figure 3 yes Figure 2 A perspective view of the cleaning roller assembly further removing the wire reel assembly. (See image below.) Figures 1 to 3 As shown, the cleaning roller assembly of this disclosure includes a roller bracket 1, a power unit 2, a gear set 3, a rack 4, and a reel assembly 5. The gear set 3 cooperates with the power unit 2, the rack 4, and the reel assembly 5, respectively, so that the power unit 2 can drive the rack 4 and the reel assembly 5 through the gear set 3, while the rack 4 is fixed to the roller bracket 1. The following provides a detailed description of this application.

[0041] The gear set 3 includes a head gear 31, a tail gear 32, a planetary gear set 33, and a first rotating shaft 34. The head gear 31 is connected to the power component 2, the tail gear 32 meshes with the rack 4, and the first rotating shaft 34 is fixedly connected to both the sun gear 331 of the planetary gear set 33 and the tail gear 32. It is worth noting that the direction of rotation of the head gear 31 is the same as that of the tail gear 32.

[0042] The reel assembly 5 includes a reel 51 and a cable 52. The reel 51 is rotatably mounted on a first rotating shaft 34 and meshes with multiple planetary gears 332 of the planetary gear set 33. One end of the cable 52 is fixed to the reel 51, and the other end is fixed to the roller support 1. The reel assembly 5 may also include a limited state and an active state. When the reel assembly 5 is in the limited state, the power output from the power component 2 drives the end gear 32 to rotate via the sun gear 331, thereby realizing the translation of the rack 4. Since the rack 4 is connected to the roller support 1, when the reel assembly 5 is in the limited state, the power component 2 can drive the roller support 1 to translate, realizing the switching between the outward swing state and the inward retraction state of the cleaning roller assembly.

[0043] When the reel assembly 5 is in the active state, the rack 4 is in the limited position. The power output from the power unit 2 can drive the reel 51 to rotate via the planetary gear 332 to retract and extend the cable 52. The cable 52 is connected to the roller bracket 1, thereby enabling the lifting and lowering of the cleaning roller assembly. Of course, a guide mechanism can be set during the lifting and lowering of the cleaning roller assembly, and this disclosure does not impose any restrictions on this. The limited position of the rack 4 can be achieved by the limitation between the fixed housing of the robot host and the rack 4, or it can be achieved by the limitation between the fixed housing of the robot host and any part of the cleaning roller assembly. The limitation method includes, but is not limited to, hook limitation, slot limitation, and block limitation.

[0044] This configuration allows the power component 2 to drive the rack 4 to translate via the gear set 3, enabling the cleaning roller assembly to swing outward and retract inward. At the same time, it can also drive the reel 51 to rotate, enabling the cleaning roller assembly to lift and lower. By using the power component 2 in a time-sharing manner, the number of motors can be reduced, thereby effectively reducing the size of the cleaning roller assembly and lowering manufacturing costs.

[0045] Regarding the configuration of gear set 3, in some embodiments, gear set 3 may further include a transition gear 35. The transition gear 35 is connected to the first gear 31 via at least one intermediate gear 36. In other words, the transition gear 35, the first gear 31, and the intermediate gear 36 form a reduction gear set. It should be noted that the rotation direction of the output shaft of the power component 2 is the same as the rotation direction of the first gear 31, and the rotation direction of the first gear 31 is the same as the rotation direction of the transition gear 35, but opposite to the rotation direction of the reel 51. For example, if the output shaft of the power component 2 rotates clockwise, the first gear 31 and the transition gear 35 also rotate clockwise, while the reel 51 rotates counterclockwise. Of course, if the output shaft of the power component 2 rotates counterclockwise, the first gear 31 and the transition gear 35 also rotate counterclockwise, while the reel 51 rotates clockwise. The power component 2 is preferably, but not limited to, a motor.

[0046] The planetary gear set 33 may further include a second rotating shaft 333 corresponding to each planetary gear 332, with one end of the second rotating shaft 333 rotatably passing through the planetary gear 332 and the other end fixed to the adapter gear 35. Thus, the adapter gear 35 can drive the planetary gear 332 to rotate around the axis of the second rotating shaft 333, and simultaneously rotate around the sun gear 331 or along the inner circumference of the spool 51. The inner circumference of the spool 51 is provided with teeth to mesh with the multiple planetary gears 332 respectively. Based on the above design, the direction of rotation of the adapter gear 35 is the same as that of the end gear 32.

[0047] Regarding the limiting states of the reel assembly 5, in some embodiments, the limiting states include a forward limiting state and a reverse limiting state. The limiting states of the reel assembly 5 will be described in detail below in conjunction with the specific structure of the cleaning roller assembly.

[0048] Figure 4 This is a schematic diagram illustrating a cleaning roller assembly comprising a housing, a reel assembly, and a rack assembly, according to an exemplary embodiment. Figure 4 As shown, the cleaning roller assembly may further include a housing 6, which covers the reel 51, and the housing 6 includes a first limiting part 61. The reel 51 releases the cable 52 when rotating forward. Therefore, when the reel assembly 5 is in the forward rotation limiting state, the first limiting part 61 contacts the forward rotation of the reel 51, ensuring that the cleaning roller assembly is always taut by the cable 52. That is, in this forward rotation limiting state, the cleaning roller assembly will not rise or fall. Therefore, if the power output from the power unit 2 drives the reel 51 to rotate forward, and because the reel 51 is limited by the first limiting part 61, the power from the power unit 2 is transmitted to the end gear 32 through the sun gear 331, thereby driving the rack 4 to translate, causing the cleaning roller assembly to switch to an outward swing state.

[0049] Before the reel assembly 5 is in the forward rotation limit state, the reel 51 rotates forward to release the cable 52, causing the cleaning roller assembly to descend. During this process, since the rack 4 and / or roller support 1 are restricted and cannot move, the power of the power unit 2 is used only to drive the reel 51 to rotate via the planetary gear set 33. When the cleaning roller assembly descends to its final position, the reel 51 is restricted from rotating by the first limit part 61. When the cleaning roller assembly descends to its final position and switches to the outward swing state, the rotation of the power unit 2 is in the same direction as its rotation during the descent of the cleaning roller assembly. Figure 5 and Figure 6As shown, the rack 4 includes a toothed portion 41 and a smoothing portion 42 arranged side by side. The smoothing portion 42 is located on the side of the toothed portion 41 facing the adapter gear 35. The toothed portion 41 meshes with the end gear 32. The spool 51 includes a second limiting portion 511. When the spool 51 rotates in the reverse direction to retract the cable 52, and the spool assembly 5 is in the reverse limiting state, the direction of the output shaft of the power unit 2 is reversed, causing the spool 51 to tend to rotate in the reverse direction. The second limiting portion 511 abuts against the smoothing portion 42 to limit the reverse rotation of the spool 51, thus allowing the cable 52 to remain stationary. The cleaning roller assembly remains taut by the cable 52, and the cleaning roller assembly does not rise or fall. During this process, the power of the power unit 2 is transmitted to the end gear 32 through the sun gear 331, causing the rack 4 to translate, resulting in the cleaning roller assembly being in the retracted state. It should be noted that the retracted state of the cleaning roller assembly occurs after the outward swing state.

[0050] Based on the above, taking the counter-clockwise rotation of the reel assembly 5 as an example, the corresponding rotation of the output shaft of the power component 2 is clockwise. The clockwise rotation of the output shaft of the power component 2 drives the intermediate gear 36 and the adapter gear 35 to rotate, achieving a speed reduction effect. The adapter gear 35 rotates clockwise. Since the rack 4 or the roller support 1 is restricted from movement, the sun gear 331 remains stationary. Therefore, the adapter gear 35 drives the planetary gear 332 to rotate, causing the reel 51 to rotate counter-clockwise, thereby releasing the cable 52 and achieving the overall descent of the cleaning roller assembly. When the cleaning roller assembly descends to its final position, the reel 51 also rotates by a preset angle and contacts the first limiting part 61 to restrict its counter-clockwise rotation.

[0051] At this time, the output shaft of the power unit 2 still rotates clockwise. Due to the structural characteristics of the planetary gear set 33, when the spool 51 is restricted from rotating, the adapter gear 35 drives the planetary gear 332 to drive the sun gear 331 to rotate. The end gear 32 rotates clockwise on the same axis as the sun gear 331, thereby driving the rack 4 to translate, so that the cleaning roller assembly switches from the lowered position to the outward swing state. When the cleaning roller assembly swings out to the correct position, the power unit 2 can stop working.

[0052] With the cleaning roller assembly in its outward swing position, if the cleaning roller assembly needs to be retracted, the power unit 2 needs to be activated again. At this time, the output shaft of the drive unit 2 switches to counterclockwise rotation, and correspondingly, the reel assembly 5 rotates clockwise. The counterclockwise rotation of the drive unit 2 output shaft drives the adapter gear 35 to rotate counterclockwise. At this time, the power of the drive unit 2 is distributed to the planetary gear set 33, so that both the sun gear 331 and the reel 51 have a tendency to rotate. Since the second limiting part 511 abuts against the smoothing part 42, it restricts the ability of the reel 51 to rotate in the opposite direction. Consequently, the power of the drive unit 2 is distributed to the sun gear 331, causing the end gear 32 to rotate counterclockwise to drive the rack 4 to retract, thereby switching the cleaning roller assembly from the outward swing state to the inward retraction state.

[0053] When the cleaning roller assembly is retracted into its final position, the rack 4 or roller support 1 is restricted from movement, while the output shaft of the power unit 2 continues to rotate counterclockwise. At this time, the power of the drive unit 2 is correspondingly distributed to the planetary gear 332, causing the reel 51 to rotate clockwise to retract the cable, thereby achieving the overall lifting of the cleaning roller assembly. When the cleaning roller assembly is lifted into its final position, the power unit 2 can stop working. When the cleaning roller assembly switches between an outward swing state and an inward retraction state due to the translation of the rack 4, the second limiting part 511 can move or roll on the smooth part 42 to limit the movement of the reel assembly 5.

[0054] The rack 4 may also include a relief groove 43, which is recessed from the smooth portion 42 along the thickness direction of the rack 4. When the reel assembly 5 is in the active state, the reel 51 is located above the relief groove 43, and a gap is provided between the second limiting portion 511 and the periphery of the relief groove 43. This arrangement is to avoid interference between the second limiting portion 511 and the relief groove 43, thereby allowing the reel 51 to smoothly reel in and out the cable 52. It should be noted that the active state of the reel assembly 5 occurs when the cleaning roller assembly is lowered and raised.

[0055] The lifting of the cleaning roller assembly occurs after the cleaning roller assembly has retracted. During the lifting of the cleaning roller assembly, the rack 4 and / or roller support 1 are restricted and cannot move, while the power from the power unit 2 is used only to drive the rotation of the reel 51 via the planetary gear set 33. For example, when the cleaning roller assembly is retracted into its final position, the end gear 32 rotates to the end of the toothed portion 41, thus restricting the rotation of the end gear 32 and allowing the power from the power unit 2 to be distributed to the reel 51.

[0056] The reel 51 may further include a transmission part 512 and a winding part 513. The inner circumference of the transmission part 512 meshes with a plurality of planetary gears 332, i.e., the inner circumference of the transmission part 512 is provided with teeth. The winding part 513 is located on the side of the transmission part 512 away from the planetary gear set 33 and is connected to the cable 52. The winding part 513 is coaxially arranged with the transmission part 512. The first rotating shaft 34 passes through the winding part 513, and the second limiting part 511 rotates synchronously with the winding part 513. In other words, when the rotating reel assembly 5 is in an active state, the second limiting part 511 and the winding part 513 rotate synchronously around the axis of the first rotating shaft 34.

[0057] Along the radial direction of the transmission section 512, a portion of the second limiting section 511 extends beyond the circumferential side of the winding section 513. This arrangement allows the second limiting section 511 to abut against the smoothing section 42 when the power member 2 drives the rack 4 to translate. The second limiting section 511 can be a rotating wheel located on the winding section 513 to reduce friction between the second limiting section 511 and the smoothing section 42.

[0058] The cleaning roller assembly may also include a first detection device (not shown) and a second detection device (not shown). The first detection device is triggered when the roller support 1 is raised to its limit position, and the second detection device is triggered when the rack 4 is translated to its limit position. When the roller support 1 is raised to its limit position and triggers the first detection device, the power component 2 can stop working. The power component 2 can also stop working when the cleaning roller assembly swings out to its position and triggers the first detection device. The first detection device can be a position sensor or a current sensor, and the second detection device can also be a position sensor or a current sensor.

[0059] Accordingly, this application also provides a robot host, including the cleaning roller assembly as described above.

[0060] Accordingly, this application also provides a cleaning device, including a robot base (not shown) and a robot host as described above, wherein the robot base is used to clean and charge the robot host.

[0061] It should be noted that the technical solutions or features described in the above embodiments can be combined or complemented by each other without conflict. The scope of protection of this disclosure is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A cleaning roller assembly, characterized in that, include: Roller support; Power components; The gear set includes a head gear, an end gear, a planetary gear set, and a first rotating shaft. The head gear is connected to the power component, and the first rotating shaft is fixedly connected to the sun gear of the planetary gear set and the end gear, respectively. A rack, which is fixed to the roller bracket and meshes with the end gear; A reel assembly, comprising a reel and a cable, wherein the reel is rotatably mounted on the first shaft and meshes with a plurality of planetary gears of the planetary gear set, and one end of the cable is fixed to the reel and the other end is fixed to the roller bracket; The reel assembly includes a limited state and an active state. When the reel assembly is in the limited state, the power component drives the rack to translate. When the reel assembly is in the active state and the rack is limited, the power component drives the reel to rotate to retract and extend the cable, thereby raising and lowering the cleaning roller assembly.

2. The cleaning roller assembly of claim 1, wherein, It also includes a housing that covers the reel, the housing including a first limiting part, the limiting state including a forward rotation limiting state; When the reel assembly is in the forward rotation limit state, the first limiting part contacts the reel to restrict the forward rotation of the reel; the forward rotation of the reel releases the cable.

3. The cleaning roller assembly according to claim 1, characterized in that, The rack includes a toothed portion and a smooth portion arranged in parallel. The toothed portion meshes with the end gear. The spool includes a second limiting portion. The limiting state includes a reverse limiting state. When the reel assembly is in the reverse limiting state, the second limiting part abuts against the smoothing part to restrict the reel from rotating in the reverse direction; the reel rotates in the reverse direction to retrieve the cable.

4. The cleaning roller assembly according to claim 3, characterized in that, The rack also includes a relief groove, which is recessed from the smooth portion along the thickness direction of the rack. When the reel assembly is in the active state, the reel is located above the clearance groove, and there is a gap between the second limiting part and the periphery of the clearance groove.

5. The cleaning roller assembly according to claim 1, characterized in that, When the power component drives the rack to translate, the cleaning roller assembly switches between an outward swing state and an inward retraction state. Furthermore, when the cleaning roller assembly switches to the outward swing state, the direction of rotation of the power component is in the same direction as its rotation when the cleaning roller assembly descends.

6. The cleaning roller assembly of claim 1, wherein, The spool includes a second limiting part, a transmission part, and a winding part. The inner circumference of the transmission part meshes with the plurality of planetary gears respectively. The winding part is located on the side of the transmission part away from the planetary gear set and is connected to the cable. The first rotating shaft passes through the winding part, and the second limiting part rotates synchronously with the winding part.

7. The cleaning roller assembly according to claim 6, characterized in that, Along the radial direction of the transmission part, a portion of the second limiting part extends beyond the circumferential side of the winding part; When the rack is translated, the second limiting part can slide or roll on the rack.

8. The cleaning roller assembly according to claim 1, characterized in that, The gear set also includes a transfer gear, and the planetary gear set also includes a second rotating shaft that is arranged in a one-to-one correspondence with the planetary gears. One end of the second rotating shaft is rotatably passed through the planetary gears, and the other end is fixed to the transfer gear. The direction of rotation of the adapter gear is the same as that of the first end gear, and opposite to that of the spool.

9. The cleaning roller assembly according to claim 1, characterized in that, It also includes a first detection device and a second detection device. The first detection device is triggered when the roller support is raised or lowered to the limit position, and the second detection device is triggered when the rack is translated to the limit position.

10. A robot host, characterized in that, Includes the cleaning roller assembly as described in any one of claims 1 to 9.

11. A cleaning apparatus, characterized by include: Robot base; The robot host as claimed in claim 10, wherein the robot base is used for cleaning and charging the robot host.

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