Floor mopping gear box of floor sweeping robot

Abstract

The utility model discloses a mopping gear box of a sweeping robot, which belongs to the field of sweeping robots and comprises a direct current motor, the surface of the output end of the direct current motor is rotatably sleeved with a mounting box, the output end of the direct current motor penetrates through the mounting box and is fixedly connected with a driving gear, and the driving gear is rotatably connected to the inside of the mounting box. A driving mechanism is mounted on the surface of the driving gear, and a clamping mechanism is mounted on the upper surface of the mounting box; through cooperative use of the devices, lubricating oil in the oil storage box enters the mounting box through the sealing box to lubricate the driving gear, and through rotation of the driving gear, the whole driving mechanism is lubricated, so that friction force among the gears is reduced, abrasion of the gears is reduced, and the service life of the gears is prolonged. And the driven gear rotates slowly through transmission among a plurality of gears, so that the pushing rod can be lubricated again after a period of time, and the automatic lubricating effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of sweeping robot technology, specifically to the mopping gearbox of a sweeping robot. Background Technology

[0002] A robotic vacuum cleaner, also known as an automatic cleaning robot, smart vacuum cleaner, or robotic vacuum cleaner, is a type of smart home appliance that uses artificial intelligence to automatically clean floors in a room. It typically uses a combination of brushing and vacuuming to collect debris into its own dustbin, thus completing the cleaning process. Generally, robots that perform sweeping, vacuuming, and mopping are all categorized as robotic vacuum cleaners.

[0003] An investigation revealed a Chinese utility model patent (publication number: CN210008977U) disclosing a mopping gearbox for a robotic vacuum cleaner. The gearbox includes a motor, a gear housing, a fixed internal gear, and a gear set. The motor is mounted on the side wall of the gear housing and is used to input power for mopping. The gear housing is hollow inside and has an opening at the bottom for connecting to external mopping components. Both the fixed internal gear and the gear set are installed inside the gear housing, with the gear set mounted on the fixed internal gear. The motor output shaft meshes with the multi-stage gears of the gear set, amplifying the torque of the motor's rotating shaft and outputting it to the external mopping components via the gear set. This utility model's gearbox for mopping robotic vacuum cleaners utilizes a high-torque, medium-to-high-speed motor and a worm gear design to maximize the transmission ratio, thus meeting the greater torque required for mopping by the robotic vacuum cleaner.

[0004] Although the aforementioned patent uses a structure such as a worm gear to fix the worm gear on the rotating shaft of the motor and then directly connect it to the two-stage double gear, the structure is compact. The internal gear is fixed on the bottom shell of the gearbox, so that the planetary carrier turntable can rotate normally for output. In order to reduce the noise of gear rotation, a bearing is used at the output end to limit the clearance of planetary carrier rotation, so that the overall gearbox transmission is smooth and noiseless.

[0005] However, during prolonged use, the multiple gears in the mopping gearbox of a robotic vacuum cleaner continuously mesh and rotate, causing wear. This wear accelerates when cleaning surfaces with high resistance, leading to unstable mop rotation speed or insufficient power, thus affecting mopping performance. Consequently, lubricant needs to be added to the mopping gearbox to lubricate the multiple gears. However, adding lubricant to the mopping gearbox is usually done manually, which prevents it from being added while the robot vacuum is in use. Lubricant must be added only after the robot vacuum has stopped, resulting in reduced cleaning efficiency.

[0006] Therefore, this utility model provides a mopping gearbox for a sweeping robot to solve the above problems. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] This utility model provides a mopping gearbox for a sweeping robot, aiming to solve the problems mentioned in the background art.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model provides the following technical solution: a mopping gearbox for a sweeping robot, comprising a DC motor, a mounting box rotatably sleeved on the surface of the output end of the DC motor, a drive gear fixedly connected through the mounting box to the output end of the DC motor, the drive gear rotatably connected to the interior of the mounting box, a drive mechanism mounted on the surface of the drive gear, a snap-fit ​​mechanism mounted on the upper surface of the mounting box, a sealing plate mounted on the surface of the snap-fit ​​mechanism, an oil storage box fixedly connected to the upper surface of the sealing plate, an oil inlet pipe fixedly connected to the upper surface of the oil storage box, a sealing box communicating with the oil storage box fixedly connected to the inner top wall of the sealing plate, an elastic plate fixedly connected to the interior of the sealing box, an arc-shaped plate fixedly connected to one end of the elastic plate, the arc-shaped plate slidably connected to the sealing box, and a connecting rod fixedly connected to the surface of the arc-shaped plate.

[0011] As a preferred technical solution of this application, the driving mechanism includes a linkage gear meshing with the driving gear, a rotating gear meshing on the surface of the linkage gear, a driven gear meshing on the surface of the rotating gear, a push rod fixedly connected to the surface of the driven gear, and both the rotating gear and the driven gear being rotatably connected inside the mounting box.

[0012] As a preferred technical solution of this application, the driving mechanism further includes a rotating plate rotatably connected to the inside of the sealing plate via a rotating shaft. The two sides of the rotating plate correspond to the connecting rod and the pushing rod, respectively. The surfaces of the rotating gear and the driven gear are fixedly connected to a driving rod that is rotatably connected to the mounting box, and the surfaces of the two driving rods are fixedly connected to a driving gear.

[0013] As a preferred technical solution of this application, the driving mechanism further includes a rotating rod rotatably connected inside the mounting box, a connecting gear fixedly connected to the surface of the rotating rod, the connecting gear meshing with a corresponding driving gear, and a mop tray fixedly connected to one end of the rotating rod through the mounting box.

[0014] As a preferred technical solution of this application, filter plates are fixedly connected to the surfaces of the sealing plate and the mounting box, and the two filter plates are respectively connected to the sealing plate and the mounting box, and the two filter plates correspond to each other.

[0015] (III) Beneficial Effects

[0016] By incorporating a drive mechanism, sealing plate, elastic plate, and arc-shaped plate, the DC motor is activated, causing the drive gear to rotate and the linkage gear to rotate. This causes the driven gear to rotate the push rod between the mounting box and the sealing plate, which in turn causes the push rod to rotate the rotating plate. The rotating plate then pushes the connecting rod to rotate, causing the arc-shaped plate to stop sealing the sealing box. This allows the lubricating oil inside the oil storage box to enter the mounting box through the sealing box, lubricating the drive gear. The rotation of the drive gear lubricates the entire drive mechanism, reducing friction between multiple gears and minimizing wear. Furthermore, the slower rotation of the driven gear due to the transmission between multiple gears allows the push rod to be lubricated again at intervals, achieving automatic lubrication. This makes the mopping gearbox of the robot vacuum cleaner more convenient to use.

[0017] Through the design of the snap-fit ​​mechanism and filter plates, the two filter plates ventilate the mounting box and the sealing plate respectively, allowing air circulation between the mounting box and the sealing plate and dissipating heat from the components between them. This makes the drive mechanism safer to use. Furthermore, the snap-fit ​​mechanism allows the sealing plate and the mounting box to snap together, making it easier to disassemble and repair the robot vacuum cleaner's mopping gearbox. The sealing plate also prevents external debris from entering the mounting box and affecting the drive mechanism. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the mopping gearbox of a robotic vacuum cleaner;

[0019] Figure 2 A second-view structural diagram of the mopping gearbox of a robotic vacuum cleaner;

[0020] Figure 3 This is a schematic diagram of the drive mechanism in the mopping gearbox of a robotic vacuum cleaner;

[0021] Figure 4 This is a schematic diagram of the oil collection box and rotating plate in the mopping gearbox of a robotic vacuum cleaner;

[0022] Figure 5 This is a schematic diagram of the locking mechanism in the mopping gearbox of a robotic vacuum cleaner.

[0023] In the picture:

[0024] 1. DC motor; 2. Mounting box; 3. Drive gear; 4. Sealing plate; 5. Oil reservoir; 6. Sealing box; 7. Elastic plate; 8. Arc plate; 9. Connecting rod; 10. Linkage gear; 11. Driven gear; 12. Push rod; 13. Rotating plate; 14. Drive rod; 15. Drive gear; 16. Rotating rod; 17. Filter plate; 18. Insertion rod; 19. Elastic locking block; 20. Unlocking rod; 21. Connecting gear. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides a mopping gearbox for a sweeping robot, such as... Figures 1-5 As shown, the mopping gearbox of the sweeping robot includes a DC motor 1. The surface of the output end of the DC motor 1 is rotatably sleeved with a mounting box 2. The output end of the DC motor 1 is fixedly connected to the drive gear 3 through the mounting box 2. The drive gear 3 is rotatably connected to the inside of the mounting box 2. By rotating the drive gear 3, the linkage gear 10 and the driven gear 11 and other structures are lubricated synchronously, thereby reducing the friction between multiple gears and reducing gear wear.

[0027] A drive mechanism is mounted on the surface of the drive gear 3. The drive mechanism includes a linkage gear 10 that meshes with the drive gear 3. A rotating gear meshes on the surface of the linkage gear 10. A driven gear 11 meshes on the surface of the rotating gear. A push rod 12 is fixedly connected to the surface of the driven gear 11. When the mopping gearbox is in use, the DC motor 1 drives the drive gear 3 to rotate inside the mounting box 2, thereby driving the linkage gear 10 to rotate, causing the driven gear 11 to mesh and rotate, thereby causing the push rod 12 to rotate inside the mounting box 2.

[0028] Both the rotating gear and the driven gear 11 are rotatably connected inside the mounting box 2. The drive mechanism also includes a rotating plate 13 rotatably connected inside the sealing plate 4 via a rotating shaft. The rotation of the rotating plate 13 allows for automatic addition of lubricating oil, thus preventing noise generated during the use of the sweeping robot due to untimely lubrication. The two sides of the rotating plate 13 correspond to the connecting rod 9 and the pushing rod 12, respectively. The surfaces of both the rotating gear and the driven gear 11 are fixedly connected to drive rods 14 rotatably connected to the mounting box 2. The surfaces of the two drive rods 14 are fixedly connected to drive gears 15. The drive mechanism also includes a rotating rod 16 rotatably connected inside the mounting box 2. The surface of the rotating rod 16 is fixedly connected to a connecting gear 21, which meshes with the corresponding drive gear 15. One end of the rotating rod 16 passes through the mounting box 2 and is fixedly connected to a mop disc. The rotation of the rotating rod 16 through the meshing of the drive gear 15 causes the rotating rod 16 to rotate, which in turn causes the mop disc to rotate, thereby causing the mop disc to drive the mop to clean the floor.

[0029] A sealing plate 4 is installed on the surface of the snap-fit ​​mechanism. Filter plates 17 are fixedly connected to both the sealing plate 4 and the surface of the mounting box 2. The two filter plates 17 are respectively connected to the sealing plate 4 and the mounting box 2. The two filter plates 17 are corresponding to each other. The arrangement of the two filter plates 17 allows air to circulate between the mounting box 2 and the sealing plate 4, thereby dissipating heat from the components inside the mounting box 2.

[0030] An oil reservoir 5 is fixedly connected to the upper surface of the sealing plate 4, and an oil inlet pipe is fixedly connected to the upper surface of the oil reservoir 5. A sealing box 6, which communicates with the oil reservoir 5, is fixedly connected to the inner top wall of the sealing plate 4. An elastic plate 7 is fixedly connected inside the sealing box 6, and an arc-shaped plate 8 is fixedly connected to one end of the elastic plate 7. The arc-shaped plate 8 is slidably connected to the sealing box 6, and a connecting rod 9 is fixedly connected to the surface of the arc-shaped plate 8. When the rotating plate 13 rotates, the pushing rod 12 drives the rotating plate 13 to rotate, thereby causing one side of the rotating plate 13 to push the connecting rod 9 to rotate, causing the arc-shaped plate 8 to slide inside the sealing box 6 and squeeze the elastic plate 7, so that the arc-shaped plate 8 no longer seals the sealing box 6, thereby allowing the lubricating oil inside the oil reservoir 5 to enter the interior of the mounting box 2 through the sealing box 6, thereby lubricating the drive gear 3.

[0031] The upper surface of the mounting box 2 is equipped with a snap-fit ​​mechanism, which includes two insertion rods 18 that are respectively fixedly connected to both sides of the lower surface of the sealing plate 4. The surface of the insertion rods 18 is slidably connected to elastic snap-fit ​​blocks 19, which snap into the mounting box 2. Both sides of the surface of the mounting box 2 are slidably connected to unlocking rods 20. By setting the unlocking rods 20, pushing the unlocking rods 20 to move and squeezing the elastic snap-fit ​​blocks 19, the elastic snap-fit ​​blocks 19 are inserted into the interior of the insertion rods 18, so that the elastic snap-fit ​​blocks 19 no longer limit the insertion rods 18, thereby allowing the insertion rods 18 and the sealing plate 4 to be separated from the mounting box 2, which facilitates the maintenance of the internal structure of the mounting box 2 by the staff. One side of the unlocking rods 20 is fixedly connected to a return spring that is fixedly connected to the mounting box 2 in a circular array.

[0032] Specifically, when the mopping gearbox of this robotic vacuum cleaner is in use: The DC motor 1 drives the active gear 3 to rotate inside the mounting box 2, which in turn drives the linkage gear 10 to rotate, causing the driven gear 11 to mesh and rotate. This causes the push rod 12 to rotate inside the mounting box 2, which in turn drives the rotating plate 13 to rotate. One side of the rotating plate 13 then pushes the connecting rod 9 to rotate, causing the arc-shaped plate 8 to slide inside the sealing box 6, squeezing the elastic plate 7. This prevents the arc-shaped plate 8 from sealing the sealing box 6, allowing the lubricating oil in the oil reservoir 5 to enter the mounting box 2 through the sealing box 6, thus lubricating the active gear 3. The rotation of the active gear 3 simultaneously lubricates the linkage gear 10 and the driven gear 11, reducing friction between the gears and minimizing wear. Furthermore, the rotation of the rotating plate 13 automatically adds lubricating oil, preventing noise during operation due to insufficient lubrication.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mopping gear box of a robot sweeper comprising a direct current motor (1), characterized in that: The surface of the output end of the direct current motor (1) is sleeved with a mounting box (2), the output end of the direct current motor (1) is fixedly connected with a driving gear (3) penetrating through the mounting box (2), the driving gear (3) is rotatably connected to the inside of the mounting box (2), a driving mechanism is mounted on the surface of the driving gear (3), a clamping mechanism is mounted on the upper surface of the mounting box (2), a sealing plate (4) is mounted on the surface of the clamping mechanism, an oil storage box (5) is fixedly connected to the upper surface of the sealing plate (4), an oil inlet pipe is fixedly connected to the upper surface of the oil storage box (5), a sealing box (6) in communication with the oil storage box (5) is fixedly connected to the inner top wall of the sealing plate (4), an elastic plate (7) is fixedly connected to the inside of the sealing box (6), an arc-shaped plate (8) is fixedly connected to one end of the elastic plate (7), the arc-shaped plate (8) is slidably connected with the sealing box (6), and a connecting rod (9) is fixedly connected to the surface of the arc-shaped plate (8).

2. The mopping gearbox of the robotic sweeper of claim 1, wherein: The driving mechanism comprises a linkage gear (10) engaged with the driving gear (3), a rotating gear engaged with the surface of the linkage gear (10), and a driven gear (11) engaged with the surface of the rotating gear, wherein the surface of the driven gear (11) is fixedly connected with a push rod (12), and the rotating gear and the driven gear (11) are both rotatably connected to the inside of the mounting box (2).

3. The mopping gearbox of the robotic floor sweeping machine according to claim 2, wherein: The driving mechanism further comprises a rotating plate (13) rotatably connected to the inside of the sealing plate (4) through a rotating shaft, the two sides of the rotating plate (13) correspond to the connecting rod (9) and the push rod (12) respectively, the surfaces of the rotating gear and the driven gear (11) are both fixedly connected with a driving rod (14) rotatably connected with the mounting box (2), and the surfaces of the two driving rods (14) are both fixedly connected with a driving gear (15).

4. The mopping gearbox of the robotic floor sweeping machine according to claim 3, wherein: The driving mechanism further comprises a rotating rod (16) rotatably connected to the inside of the mounting box (2), a connecting gear (21) fixedly connected to the surface of the rotating rod (16), and a mop disc fixedly connected to one end of the rotating rod (16) penetrating through the mounting box (2), wherein the connecting gear (21) is engaged with the corresponding driving gear (15).

5. The mopping gear box of the robotic floor sweeping machine according to claim 1, wherein: The surfaces of the sealing plate (4) and the mounting box (2) are both fixedly connected with a filter plate (17), the two filter plates (17) are in communication with the sealing plate (4) and the mounting box (2) respectively, and the two filter plates (17) correspond to each other.

6. The mopping gearbox of the robotic floor sweeping machine according to claim 1, wherein: The clamping mechanism comprises two insertion rods (18) fixedly connected to the two sides of the lower surface of the sealing plate (4) respectively, an elastic clamping block (19) slidably connected to the surface of the insertion rod (18), the elastic clamping block (19) clamped with the mounting box (2), unlocking rods (20) slidably connected to the two sides of the surface of the mounting box (2), and reset springs fixedly connected with the mounting box (2) arranged in an annular array on one side of the unlocking rod (20).

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