A clean equipment outer gear box based on connecting rod mechanism

Abstract

The utility model relates to cleaning equipment technical field especially a cleaning equipment outer swing gear box based on connecting rod mechanism, including a box (10), set up in a gear drive subassembly (20) and with first output gear (30) and a second output gear (40) of gear drive subassembly (20) are engaged in the box (10) inside, set up in the drive piece (50) of gear drive subassembly (20) drive connection with the box (10) outside, a connecting rod mechanism (60) with gear drive subassembly (20) is matched and a tension spring (70) for providing the outer swing reset force, wherein gear drive subassembly (20) includes a clutch mechanism (21). The utility model drive piece can drive edge brush rotation also can drive edge brush swing, expands the activity range of edge brush, only realizes the above-mentioned function through the same drive piece, does not need multiple motors, reduces production cost.

Description

Technical Field

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

[0002] Cleaning equipment such as robot vacuum cleaners 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 equipment on the market is equipped with side brushes. One motor drives the side brush to rotate and clean these areas, while another motor drives it to swing outwards relative to the main body of the equipment, 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 cleaning equipment based on a linkage mechanism 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 equipment external swing gearbox based on a linkage mechanism includes a housing, a gear transmission assembly disposed within the housing, a first output gear and a second output gear meshing with the gear transmission assembly, a drive member disposed outside the housing and connected to the gear transmission assembly, a linkage mechanism cooperating with the gear transmission assembly, and a tension spring for providing external swing return force, wherein the gear transmission assembly includes a clutch mechanism.

[0007] Preferably, the gear transmission assembly includes a driving gear, a first double gear meshing with the driving gear, a second double gear meshing with the first double gear, a movable gear meshing with the second double gear, and a third double gear and a fourth double gear movably meshing with the movable gear.

[0008] Preferably, the clutch mechanism includes a bracket, a rotating shaft, and a spring. The rotating shaft is rotatably mounted on the bracket, and the movable gear is mounted on the rotating shaft. The spring is sleeved on the rotating shaft between the bracket and the movable gear.

[0009] Preferably, a retaining ring groove is provided at one end of the rotating shaft relative to the movable gear, and a retaining ring is provided in the retaining ring groove.

[0010] Preferably, the linkage mechanism includes a V-shaped link and a rocker arm. The V-shaped link includes a first link and a second link integrally formed with the first link. The second link is provided with a guide groove along its length for the mounting shaft of the fourth double gear to perform linear reciprocating motion. The rocker arm is provided between the V-shaped link and the second output gear.

[0011] Preferably, the two ends of the swing arm are respectively connected to a first vertical rod and a second vertical rod, the first vertical rod is movably inserted through the connection between the first connecting rod and the second connecting rod, and the second vertical rod is movably inserted through the second output gear.

[0012] Preferably, one end of the tension spring is fixed to a fixing post on the outer surface of the box.

[0013] Compared with the prior art, the beneficial effects of this utility model are: Due to the above structural design, namely, the gear transmission assembly, the first output gear and the second output gear are installed inside the housing, and the drive component, the linkage mechanism and the tension spring are installed outside the housing. Through the cooperation of the drive component, the gear transmission assembly and the linkage mechanism, the drive component can both drive the cleaning component to rotate and drive the cleaning component to swing, thereby expanding the range of motion of the cleaning component. At the same time, the above functions are achieved by only one drive component, 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 an exploded structural diagram of the clutch mechanism according to an embodiment of the present invention; Appendix Figure 5 This is another structural schematic diagram of the connection between the gear transmission assembly and the first output gear and the second output gear in an embodiment of this utility model; Appendix Figure 6 This is a structural diagram illustrating a specific implementation of an embodiment of the present utility model.

[0015] The labels in the diagram are as follows: 10-Box housing, 20-Gear transmission assembly, 30-First output gear, 40-Second output gear, 50-Drive component, 60-Linkage mechanism, 70-Tension spring; 11-Fixed column; 21-Clutch mechanism, 22-Driving gear, 23-First double gear, 24-Second double gear, 25-Moving gear, 26-Third double gear, 27-Fourth double gear; 211-Bracket, 212-Shaft, 213-Spring; 2121-Circlip groove, 2122-Circlip; 61-V-type connecting rod, 62-Swing rod; 611 - First link, 612 - Second link; 6121 - Guide groove; 621 - First vertical bar, 622 - Second vertical bar. 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 1-2 and Figure 6 As shown, this application discloses an external swing gearbox for a cleaning device based on a linkage mechanism, comprising a housing 10, a gear transmission assembly 20 disposed within the housing 10, a first output gear 30 and a second output gear 40 meshing with the gear transmission assembly 20, a drive component 50 (a motor) disposed outside the housing 10 and connected to the gear transmission assembly 20, a linkage mechanism 60 cooperating with the gear transmission assembly 20, and a tension spring 70 for providing external swing return force. One end of the tension spring 70 is fixed to a fixing post 11 on the outer surface of the housing 10, and the other end is fixed to the main body of the cleaning device. The gear transmission assembly 20 includes a clutch mechanism 21. Through the above structural design, the drive unit drives the first output gear and the second output gear through the gear transmission assembly. The first output gear is used to transmit the power of the drive unit to drive the cleaning components such as side brushes and side mops to rotate. The second output gear is used to transmit the power of the drive unit to drive the cleaning components such as side brushes and side mops to swing. That is, through the first output gear and the second output gear, the drive unit enables the cleaning components to not only rotate to clean the ground, but also to swing outward relative to the main body of the cleaning robot, so that the cleaning components can penetrate into the dead corner area and clean the dead corner area.

[0020] Specifically, such as Figure 3As shown, the gear transmission assembly 20 includes a drive gear 22 mounted on the output shaft of the motor, a first double gear 23 meshing with the drive gear 22, a second double gear 24 meshing with the first double gear 23, a movable gear 25 meshing with the second double gear 24, and a third double gear 26 and a fourth double gear 27 movably meshing with the movable gear 25. The third and fourth double gears mesh with the first and second output gears, respectively. The first, second, and third double gears all rotate around their respective mounting shafts. The drive member drives the drive gear, which in turn drives the second double gear via the first double gear. The second double gear then drives the third or fourth double gear via the movable gear. The cleaning component, located outside the housing, is coaxially mounted with the first output gear. Under the drive of the drive member, the cleaning component can swing outward relative to the main body of the cleaning device.

[0021] Specifically, such as Figure 4 As shown, the clutch mechanism 21 includes a bracket 211, a rotating shaft 212, and a spring 213. The rotating shaft 212 is rotatably mounted on the bracket 211, and the movable gear 25 is mounted on the rotating shaft 212. The spring 213 is sleeved on the rotating shaft 212 between the bracket 211 and the movable gear 23. A snap ring groove 2121 is provided at one end of the rotating shaft 212 relative to the movable gear 23, and a snap ring 2122 is provided in the snap ring groove 2121 to limit the axial displacement of the rotating shaft 212.

[0022] Specifically, such as Figure 5 As shown, the linkage mechanism 60 includes a V-shaped link 61 and a rocker arm 62. The V-shaped link 61 includes a first link 611 and a second link 612 integrally formed with the first link 611. The free end of the first link 611 is movably sleeved on the support rod of the main body of the cleaning equipment. The second link 612 is provided with a guide groove 6121 along its length for the mounting shaft of the fourth double gear 40 to perform linear reciprocating motion. The rocker arm 62 is provided between the V-shaped link 61 and the second output gear 40. The two ends of the rocker arm 62 are respectively connected to a first vertical rod 621 and a second vertical rod 622. The first vertical rod 621 is movably inserted through the connection between the first link 611 and the second link 612, and the second vertical rod 622 is movably inserted through the second output gear 40.

[0023] When this application is in operation, when the drive gear 22 rotates forward, the clutch mechanism is in the first clutch position. At this time, the movable gear 25 meshes with the third double gear 26. The drive gear drives the second double gear through the first double gear, and the second double gear drives the third double gear through the movable gear. The third double gear drives the first output gear to operate normally. Since the tension spring 70 is connected between the fixed column of the housing and the fixed column of the main body of the cleaning equipment, the mounting shaft of the fourth double gear is located in the guide groove 6121 near the first vertical rod, and the second output gear does not work. When the drive gear 22 reverses, the clutch mechanism is in the second clutch position. At this time, the movable gear 25 meshes with the fourth double gear 27, the first output gear 30 stops running, and the second output gear 40 starts running. Since the support rod of the cleaning device body on which the first connecting rod is mounted and the mounting shaft of the second output gear are stationary, this application swings outward with the mounting shaft of the second output gear as the center. That is, this application swings outward from the first swing position near the cleaning device body to the second swing position away from the cleaning device body. The mounting shaft of the fourth double gear moves from the guide groove near the first vertical rod to the guide groove away from the first vertical rod. When the cleaning device body... After the sensing element detects the above changes, the drive gear rotates forward, the clutch mechanism is in the first clutch position, the first output gear starts running, and the second output gear stops working. At the second yaw position, the tension spring is in a stretched state, and this application returns from the second yaw position to the first yaw position. When the drive gear reverses, the clutch mechanism is in the second clutch position, the first output gear stops running, and the second output gear starts running. With the mounting shaft of the second output gear as the center, this application is yawed back, that is, it is yawed from the second yaw position back to the first yaw position. Similarly, when the sensing element on the main body of the cleaning device detects the above changes, the drive gear rotates forward, and this application makes reciprocating motion.

[0024] 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.

[0025] 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 swing gearbox for a cleaning device based on a linkage mechanism, characterized in that: The device includes a housing (10), a gear transmission assembly (20) disposed within the housing (10), a first output gear (30) and a second output gear (40) meshing with the gear transmission assembly (20), a drive member (50) disposed outside the housing (10) and connected to the gear transmission assembly (20), a linkage mechanism (60) cooperating with the gear transmission assembly (20), and a tension spring (70) for providing an outward swing return force, wherein the gear transmission assembly (20) includes a clutch mechanism (21).

2. The external swing gearbox of the cleaning equipment based on the linkage mechanism according to claim 1, characterized in that: The gear transmission assembly (20) includes a driving gear (22), a first double gear (23) meshing with the driving gear (22), a second double gear (24) meshing with the first double gear (23), a movable gear (25) meshing with the second double gear (24), and a third double gear (26) and a fourth double gear (27) movably meshing with the movable gear (25).

3. The external swing gearbox of the cleaning equipment based on the linkage mechanism according to claim 2, characterized in that: The clutch mechanism (21) includes a bracket (211), a rotating shaft (212) and a spring (213). The rotating shaft (212) is rotatably mounted on the bracket (211). The movable gear (25) is mounted on the rotating shaft (212). The spring (213) is sleeved on the rotating shaft (212) between the bracket (211) and the movable gear (25).

4. The external swing gearbox of the cleaning equipment based on the linkage mechanism according to claim 3, characterized in that: The rotating shaft (212) has a snap ring groove (2121) at one end relative to the movable gear (25), and a snap ring (2122) is provided in the snap ring groove (2121).

5. The external swing gearbox of the cleaning equipment based on the linkage mechanism according to claim 4, characterized in that: The linkage mechanism (60) includes a V-shaped link (61) and a rocker arm (62). The V-shaped link (61) includes a first link (611) and a second link (612) integrally formed with the first link (611). The second link (612) is provided with a guide groove (6121) along its length for the mounting shaft of the fourth double gear (27) to perform linear reciprocating motion. The rocker arm (62) is provided between the V-shaped link (61) and the second output gear (40).

6. The external swing gearbox of the cleaning equipment based on the linkage mechanism according to claim 5, characterized in that: The two ends of the swing arm (62) are respectively connected to a first vertical rod (621) and a second vertical rod (622). The first vertical rod (621) is movably inserted through the connection between the first connecting rod (611) and the second connecting rod (612), and the second vertical rod (622) is movably inserted through the second output gear (40).

7. The external swing gearbox of the cleaning equipment based on the linkage mechanism according to claim 1, characterized in that: One end of the tension spring (70) is fixed to a fixing post (11) on the outer surface of the housing (10).

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