A cleaning robot outer gear box

Abstract

The utility model relates to a floor cleaning robot technical field especially, it is a kind of cleaning robot outer swing gear box, including a box (10), a driving part (20), a gear transmission subassembly (30) being set in the box (10) and the driving part (20) transmission connection, with the gear transmission subassembly (30) meshing a first output gear (40) and a second output gear (50), a first transmission gear (60) and a second transmission gear (70) are arranged between the gear transmission subassembly (30) with the second output gear (50), a clutch mechanism (80) is arranged between the first transmission gear (60) with the second transmission gear (70), a gear disengagement mechanism (90) is arranged on the second output gear (70). The utility model driving part can drive edge brush rotation, also can drive edge brush swing, expand the activity range of edge brush;Only the above-mentioned function is realized by same driving part, multiple motors are not needed, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, specifically, it is an external swing gearbox for a cleaning robot. Background Technology

[0002] Cleaning robots and other cleaning equipment are among the most common household appliances. They can automatically clean the floors in a room, bringing great convenience to people's lives.

[0003] To improve cleaning effectiveness in corners and other obstructed areas, most cleaning robots on the market are equipped with side brushes. One motor drives the side brush to rotate and clean these areas, while another motor drives it to swing outward relative to the main body of the robot, thus expanding its cleaning range and allowing it to reach deeper into hard-to-reach areas. However, this design results in a more complex gear transmission assembly and a larger number of motors, increasing both the production cost and the overall size and weight of the cleaning equipment.

[0004] Therefore, existing technologies need to be improved and enhanced. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a swing gearbox for a cleaning robot that enables side brush rotation and swinging motion while reducing the number of motors.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A cleaning robot external gearbox includes a housing, a drive component disposed outside the housing, a gear transmission assembly disposed inside the housing and connected to the drive component, a first output gear and a second output gear meshing with the gear transmission assembly, a first transmission gear and a second transmission gear disposed between the gear transmission assembly and the second output gear, a clutch mechanism disposed between the first transmission gear and the second transmission gear, and a gear disengagement mechanism disposed on the second output gear.

[0007] As a further embodiment of this utility model, the gear transmission assembly includes a drive wheel driven by the drive member, a first double gear meshing with the drive wheel, and a second double gear meshing with the first double gear.

[0008] As a further embodiment of this utility model, the clutch mechanism includes a bracket, a rotating shaft, and a first spring. The rotating shaft is rotatably mounted on the bracket, and a second transmission gear is mounted on the rotating shaft. The first spring is sleeved on the rotating shaft between the bracket and the second transmission gear. A stop block that cooperates with the bracket is provided on the inner wall of the housing.

[0009] As a further embodiment of this utility model, a retaining ring groove is provided at one end of the rotating shaft relative to the second transmission gear, and a retaining ring is provided in the retaining ring groove.

[0010] As a further embodiment of this utility model, the gear disengagement mechanism includes a cam mounted on the second output gear, a column sliding along a cam groove on the cam, and a guide rod mounted on the column via a rod head. The guide rod is movably inserted into at least one fixed block, and a second spring is sleeved on the guide rod between the fixed block and the rod head.

[0011] As a further embodiment of this invention, a cam mounting groove is provided on the side wall of the second output gear, and the cam is mounted in the cam mounting groove.

[0012] As a further embodiment of this utility model, a third double gear is provided between the gear transmission assembly and the first output gear, and the third double gear meshes with the second double gear and the first output gear.

[0013] Compared with the prior art, the beneficial effects of this utility model are: Due to the aforementioned structural design—that is, a drive unit is installed outside the housing and a gear transmission assembly, a first output gear, and a second output gear are installed inside the housing; a first transmission gear and a second transmission gear are installed between the gear transmission assembly and the second output gear; a clutch mechanism is installed between the first transmission gear and the second transmission gear; and a gear disengagement mechanism is installed on the second output gear—the drive unit can both drive the side brush to rotate and drive the side brush to swing, thus expanding the range of motion of the side brush. At the same time, the above functions are achieved by only one drive unit, eliminating the need for multiple motors and reducing production costs. Attached Figure Description

[0014] Appendix Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Appendix Figure 2 This is an exploded structural diagram of an embodiment of the present utility model; Appendix Figure 3 This is a schematic diagram of the connection between the gear transmission assembly and the first output gear and the second output gear in an embodiment of the present invention; Appendix Figure 4 This is a structural diagram illustrating a specific implementation of an embodiment of the present utility model; Appendix Figure 5 This is a schematic diagram illustrating the external swing configuration of this utility model embodiment; Appendix Figure 6 This is a schematic diagram illustrating the retraction process in an embodiment of the present invention.

[0015] The labels in the diagram are as follows: 10-Box housing, 20-Driver component, 30-Gear transmission assembly, 40-First output gear, 50-Second output gear, 60-First transmission gear, 70-Second transmission gear, 80-Clutch mechanism, 90-Gear disengagement mechanism; 31-Drive wheel, 32-First double gear, 33-Second double gear, 34-Third double gear; 81-Bracket, 82-Shaft, 83-First Spring; 11-Stop; 51-Cam mounting slot; 821-Circlip groove, 822-Circlip; 91-Cam, 92-Column, 93-Guide rod, 94-Fixing block, 95-Second spring; 911-Cam groove. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings: The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. 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 indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0017] In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0018] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Example

[0019] like Figure 1-3 As shown, this application discloses an externally swinging gearbox for a cleaning robot, comprising a housing 10, a drive component 20 disposed outside the housing 10 (the drive component 20 being a motor), a gear transmission assembly 30 disposed inside the housing 10 and connected to the drive component 20, a first output gear 40 and a second output gear 50 meshing with the gear transmission assembly 30, a first transmission gear 60 and a second transmission gear 70 disposed between the gear transmission assembly 30 and the second output gear 50, a clutch mechanism 80 disposed between the first transmission gear 60 and the second transmission gear 70, and a gear disengagement mechanism 90 disposed on the second output gear 50. Through the above structural design, the drive component drives the first and second output gears via the gear transmission assembly. The first output gear transmits power to the drive component, driving the side brush to rotate, and the second output gear transmits power to the drive component, driving the side brush to swing. That is, through the first and second output gears, the drive component enables the side brush not only to rotate and clean the ground, but also to swing outwards relative to the main body of the cleaning robot, thereby allowing the side brush to penetrate into dead-angle areas for cleaning.

[0020] like Figure 4 As shown, the side brush is coaxially arranged with the first output gear and is located outside the housing. Driven by the drive unit, the side brush can swing outward or retract relative to the main body of the cleaning robot.

[0021] Specifically, the gear transmission assembly 30 includes a drive wheel 31 mounted on the motor output shaft, a first double gear 32 meshing with the drive wheel 31, and a second double gear 33 meshing with the first double gear 32. The second double gear 33 meshes with a first transmission gear, which is also a double gear. The drive member drives the drive wheel, and the drive wheel drives the second double gear through the first double gear. The first double gear and the second double gear rotate around the mounting shaft.

[0022] Specifically, the clutch mechanism 80 includes a bracket 81, a rotating shaft 82, and a first spring 83. One end of the bracket is coaxially arranged with the mounting shaft of the first transmission gear 60, and the other end of the bracket is rotatably mounted with the rotating shaft 82. The second transmission gear 70 is mounted on the rotating shaft 82. The first spring 83 is sleeved on the rotating shaft 82 between the bracket 81 and the second transmission gear 70. A stop block 11 that cooperates with the bracket 81 is provided on the inner wall of the housing 10. The gear disengagement mechanism 90 includes a cam 91 mounted on the second output gear 50, a column 92 that slides along the cam groove 911 on the cam 91, and a guide rod 93 mounted on the column 92 through a rod head. The guide rod 93 is movably inserted through two fixed blocks 94. A second spring 95 is sleeved on the guide rod 93 between the fixed block 94 and the rod head near the second output gear 50.

[0023] During operation, when the drive component rotates forward, the mounting shaft of the second output gear remains stationary. When the clutch mechanism operates to the specified position... Figure 5 When the position shown is reached, with the mounting shaft of the second output gear as the center, the main body of the cleaning robot is swung outwards. At this time, the clutch mechanism is blocked by the stop block 11 and cannot rotate clockwise. The compression of the second spring 95 of the gear disengagement mechanism is at its maximum. When it reaches the maximum boundary point of the cam, the second spring 95 will use its elastic force to disengage the second output gear 50 from the second transmission gear 70, and the second output gear 50 will no longer provide a reaction force. When the drive component reverses, the mounting shaft of the second output gear is also fixed. When the clutch mechanism runs to the position shown, the body of the cleaning robot is swung outwards. Figure 6 When the position shown is used as the center, the main body of the cleaning robot is retracted. The clutch mechanism is blocked by the stop block and cannot rotate counterclockwise. The second spring causes the second output gear 50 to disengage from the second transmission gear 70 through its elastic force. At this time, the second output gear no longer provides a reaction force.

[0024] Specifically, the side wall of the second output gear 50 is provided with a cam mounting groove 51, and the cam 91 is installed in the cam mounting groove 51. When the second output gear 50 rotates under the action of the second transmission gear 70, the cam rotates with the second output gear.

[0025] Specifically, a retaining ring groove 811 is provided at one end of the rotating shaft 82 relative to the second transmission gear 70, and a retaining ring 812 is provided in the retaining ring groove 811 to limit the axial displacement of the rotating shaft.

[0026] In a specific implementation of this utility model, a third double gear 34 is provided between the gear transmission assembly 30 and the first output gear 40. The third double gear 34 meshes with the second double gear 33 and the first output gear 40. The driving member 20 drives the third double gear through the gear transmission assembly 30, and the third double gear synchronously drives the first output gear 40, thereby driving the side brush to rotate and achieve floor cleaning.

[0027] In summary, this utility model, through the above-described structural design, overcomes the shortcomings of the prior art and features a reasonable structure, low cost, and strong practicality.

[0028] The above embodiments are merely preferred embodiments of the present utility model, and are only used to further describe the technical solution of the present utility model in detail. However, the above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. The protection scope and implementation of the present utility model are not limited thereto. Any changes, combinations, deletions, substitutions or modifications made without departing from the spirit and principle of the present utility model will be included within the protection scope of the present utility model.

Claims

1. A cleaning robot external gearbox, characterized in that: It includes a housing (10), a drive member (20) disposed outside the housing (10), a gear transmission assembly (30) disposed inside the housing (10) and connected to the drive member (20) for transmission, a first output gear (40) and a second output gear (50) meshing with the gear transmission assembly (30), a first transmission gear (60) and a second transmission gear (70) disposed between the gear transmission assembly (30) and the second output gear (50), a clutch mechanism (80) disposed between the first transmission gear (60) and the second transmission gear (70), and a gear disengagement mechanism (90) disposed on the second output gear (50).

2. The external gearbox for the cleaning robot according to claim 1, characterized in that: The gear transmission assembly (30) includes a drive wheel (31) driven by the drive member (20), a first double gear (32) meshing with the drive wheel (31), and a second double gear (33) meshing with the first double gear (32).

3. The external gearbox of the cleaning robot according to claim 2, characterized in that: The clutch mechanism (80) includes a bracket (81), a rotating shaft (82) and a first spring (83). The rotating shaft (82) is rotatably mounted on the bracket (81). The second transmission gear (70) is mounted on the rotating shaft (82). The first spring (83) is sleeved on the rotating shaft (82) between the bracket (81) and the second transmission gear (70). A stop block (11) that cooperates with the bracket (81) is provided on the inner wall of the housing (10).

4. The external gearbox of the cleaning robot according to claim 3, characterized in that: The rotating shaft (82) has a snap ring groove (821) at one end relative to the second transmission gear (70), and a snap ring (822) is provided in the snap ring groove (821).

5. The external gearbox of the cleaning robot according to claim 4, characterized in that: The gear disengagement mechanism (90) includes a cam (91) mounted on the second output gear (50), a column (92) sliding along a cam groove (911) on the cam (91), and a guide rod (93) mounted on the column (92) via a rod head. The guide rod (93) is movably inserted into at least one fixed block (94), and a second spring (95) is sleeved on the guide rod (93) between the fixed block (94) and the rod head.

6. The external gearbox of the cleaning robot according to claim 5, characterized in that: The side wall of the second output gear (50) is provided with a cam mounting groove (51), and the cam (91) is mounted in the cam mounting groove (51).

7. The external gearbox of the cleaning robot according to claim 6, characterized in that: A third double gear (34) is provided between the gear transmission assembly (30) and the first output gear (40), and the third double gear (34) meshes with the second double gear (33) and the first output gear (40).

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