A lift-adjustable sweeping robot roller brush structure

Abstract

The utility model discloses a kind of liftable adjustment's sweeping robot roll brush structure, comprising: roll brush shell, roll brush is rotatably arranged in it, roll brush butt joint drive structure, the top of roll brush shell is provided with multiple groups of guide rod;Lifting plate, guide rod is slidably arranged on it, spring is arranged between roll brush shell and lifting plate;Lifting cylinder, its end is respectively connected in lifting plate, sweeping robot main body through first hinged seat rotation;Swing rod, its end is respectively connected in lifting plate, sweeping robot main body through second hinged seat rotation.The utility model can solve the problem that existing sweeping robot roll brush structure is easily affected by ground and collides, moves and is jammed when using, so that component is damaged, and moving stability, cleaning operation efficiency is not good.

Description

Technical Field

[0001] This utility model relates to the field of sweeping robot technology, specifically to a sweeping robot roller brush structure with adjustable height. Background Technology

[0002] Currently, robotic vacuum cleaners typically clean floors using cleaning mechanisms such as roller brushes. However, the roller brush structure is usually fixedly mounted on the main body of the robotic vacuum cleaner, making it susceptible to collisions and jamming due to obstacles or uneven terrain on the ground. This can damage components, resulting in poor stability and cleaning efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a height-adjustable roller brush structure for a sweeping robot, in order to solve the problem that the existing sweeping robot roller brush structure is easily affected by the ground and will collide and get stuck during use, resulting in damage to the components, poor movement stability and cleaning efficiency.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a height-adjustable sweeping robot brush structure, comprising:

[0005] A roller brush housing with a rotatable roller brush inside, the roller brush being connected to a drive structure, and multiple sets of guide rods being provided on the top of the roller brush housing;

[0006] A lifting plate on which the guide rod slides, and a spring is provided between the brush shell and the lifting plate;

[0007] The lifting cylinders are rotatably connected at their ends to the lifting plate and the main body of the sweeping robot via the first hinge seat;

[0008] The swing arm is rotatably connected at its ends to the lifting plate and the main body of the sweeping robot via a second hinge seat.

[0009] As a further description of the above technical solution:

[0010] A dust collection hood is provided on the top of the roller brush housing, and the dust collection hood is connected to a vacuum generator through a dust collection port.

[0011] As a further description of the above technical solution:

[0012] The roller brush has a docking hole in the center, and two rotating shafts are circumferentially inserted into the two ends of the docking hole. The shafts are axially positioned and rotate to dock with the bearing seats. The bearing seats are assembled on the roller brush housing by flanges and fasteners.

[0013] As a further description of the above technical solution:

[0014] An extension plate is provided on the side of the bearing housing corresponding to the rotating shaft, and the extension plate is assembled onto the roller brush housing by fasteners.

[0015] As a further description of the above technical solution:

[0016] The drive structure includes a first pulley, a second pulley, and a timing belt. The first pulley is mounted on the outer end of another rotating shaft by fasteners. The second pulley is connected to the output shaft of the servo motor on the roller brush housing. The timing belt is sleeved on the first pulley and the second pulley.

[0017] As a further description of the above technical solution:

[0018] Silicone baffles are provided around the bottom opening of the roller brush housing, and the silicone baffles are assembled onto the roller brush housing via connecting plates.

[0019] As a further description of the above technical solution:

[0020] The robot vacuum cleaner has a guide frame on its main body. The limiting block at the end of the lifting plate can be movably abutted against the inner bottom surface of the guide frame. The guide frame is also equipped with at least two sets of position sensors for sensing the limiting block at the upper and lower moving stop points of the lifting plate.

[0021] In summary, by adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0022] 1. In use, the roller brush structure of this utility model utilizes the extension and retraction of the lifting cylinder, combined with the swing guide of the swing arm, to achieve the lifting and lowering operation of the lifting plate on the main body of the sweeping robot. This allows the roller brush to contact or detach from the ground. The operating state of the roller brush structure can be switched through the lifting adjustment drive. Furthermore, the elastic lifting and lowering docking of the roller brush shell on the lifting plate allows the roller brush shell to adapt to its own lifting and lowering, ensuring that the roller brush always contacts the ground during cleaning, thus improving the cleaning effect. When there are obstacles or uneven terrain on the ground, the roller brush structure can also adaptively rise to avoid obstacles, preventing the sweeping robot from being impacted or collided with, which could lead to movement jamming or component damage.

[0023] 2. This roller brush structure can simultaneously sweep and vacuum the floor, improving cleaning efficiency and quality; the roller brush adopts a quick-release design, which can improve the convenience of replacement and maintenance; the silicone baffle enables the flexible design of the bottom of the roller brush shell to ensure sufficient suction power in that area and improve dust collection efficiency; the position sensor ensures that the lifting cylinder drives the lifting plate to move to the designated position, thereby keeping the roller brush structure in a stable working or unused state, improving the stability of state switching and the accuracy of position adjustment. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of an adjustable roller brush for a robotic vacuum cleaner.

[0026] Figure 2 A cross-sectional view of the adjustable roller brush structure of a robotic vacuum cleaner. Figure 1 .

[0027] Figure 3 A cross-sectional view of the adjustable roller brush structure of a robotic vacuum cleaner. Figure 2 .

[0028] Legend:

[0029] 1. Roller brush housing; 2. Roller brush; 3. Guide rod; 4. Lifting plate; 5. Lifting cylinder; 6. First hinge seat; 7. Swing rod; 8. Second hinge seat; 9. Dust collection hood; 10. Dust collection port; 11. Rotating shaft; 12. Docking hole; 13. Bearing seat; 14. Extension plate; 15. First pulley; 16. Second pulley; 17. Synchronous belt; 18. Servo motor; 19. Silicone baffle; 20. Connecting plate; 21. Guide frame; 22. Limit block; 23. Position sensor. Detailed Implementation

[0030] 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 scope of protection of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0032] Please see Figures 1-3This utility model provides a technical solution: an adjustable roller brush structure for a sweeping robot, comprising:

[0033] A roller brush housing 1, in which a roller brush 2 is rotatably mounted, the roller brush 2 being connected to a drive structure, and multiple sets of guide rods 3 being provided on the top of the roller brush housing 1;

[0034] A lifting plate 4, on which the guide rod 3 slides, and a spring is provided between the roller brush housing 1 and the lifting plate 4; wherein, as shown in the figure Figure 1 The spring is fitted onto the guide rod 3;

[0035] The lifting cylinder 5 is rotatably connected at its ends to the lifting plate 4 and the main body of the sweeping robot via the first hinge seat 6;

[0036] The swing arm 7 is rotatably connected at its ends to the lifting plate 4 and the main body of the sweeping robot via the second hinge seat 8.

[0037] When the above structure is in use, the extension and retraction of the lifting cylinder 5, combined with the swing guide of the swing rod 7, enables the lifting plate 4 to be raised and lowered on the main body of the sweeping robot, allowing the roller brush 2 to contact or detach from the ground. The use state of the roller brush structure can be switched through the lifting adjustment drive. Furthermore, the roller brush shell 1's elastic lifting and lowering docking on the lifting plate 4 allows it to adaptively rise and fall, ensuring that the roller brush 2 always contacts the ground during cleaning, improving cleaning efficiency. When there are obstacles or uneven terrain on the ground, the roller brush structure can also adaptively rise and avoid obstacles, preventing the sweeping robot from being impacted or collided with, thus preventing movement jamming or component damage.

[0038] The top of the roller brush housing 1 is equipped with a dust collection hood 9, which is connected to a vacuum generator via a dust collection port 10. This enables the robot vacuum to simultaneously sweep and vacuum the floor, improving cleaning efficiency and quality.

[0039] The roller brush 2 has a docking hole 12 in the center, and the docking hole 12 can be used as follows: Figure 3 The brush employs a polygonal prism structure with a quadrilateral or other non-circular irregular shape. Two rotating shafts 11 are circumferentially inserted into the two ends of the mating hole 12, and axially rotate to mate with the bearing seat 13. The bearing seat 13 is assembled onto the brush housing 1 via a flange and fasteners. Figure 2A flange is provided in the middle of the rotating shaft 11. The groove on the inner side of the bearing seat 13 fits on the flange and presses it axially against the end of the roller brush 2. Then, the bearing seat 13 is assembled and positioned on the roller brush housing 1, thus realizing the axial positioning assembly of the roller brush 2. An extension plate 14 is provided on the side of the bearing seat 13 corresponding to the rotating shaft 11. The extension plate 14 is assembled on the roller brush housing 1 by fasteners. The drive structure includes a first pulley 15, a second pulley 16, and a synchronous belt 17. The first pulley 15 is assembled to the outer end of the other rotating shaft 11 by fasteners. The second pulley 16 is connected to the output shaft of the servo motor 18 on the roller brush housing 1. The synchronous belt 17 is sleeved on the first pulley 15 and the second pulley 16. The above structural design enables quick-release of the roller brush 2. During disassembly, loosening the fasteners allows the extension plate 14 and bearing seat 13 to be removed from the roller brush housing 1, and the first pulley 15 to be removed from the rotating shaft 11. Then, the rotating shaft 11 is pulled outwards from the roller brush 2, allowing the roller brush 2 to be removed from the opening at the bottom of the roller brush housing 1 for replacement. Reversing this process allows for quick assembly of the roller brush 2. When the roller brush 2 is in use, the servo motor 18 operates, driving the second pulley 16 to rotate. The synchronous belt 17 causes the first pulley 15 to drive the rotating shaft 11 to rotate within the bearing seat 13, and the roller brush 2 rolls within the roller brush housing 1 to clean the ground.

[0040] Silicone baffles 19 are provided around the bottom opening of the roller brush housing 1. The silicone baffles 19 are assembled onto the roller brush housing 1 via connecting plates 20. The silicone baffles 19 enable a flexible design at the bottom of the roller brush housing 1, preventing damage to components due to collisions with ground structures. At the same time, they can adaptively surround the bottom of the roller brush housing 1, making the opening of the roller brush housing 1 relatively closed and ensuring sufficient suction power to improve dust collection efficiency.

[0041] The robot vacuum cleaner has a guide frame 21 on its main body. The limiting block 22 at the end of the lifting plate 4 movably abuts against the inner bottom surface of the guide frame 21. The guide frame 21 is also equipped with at least two sets of position sensors 23 for sensing the limiting block 22 at the upper and lower moving stop points of the lifting plate 4. When the lifting plate 4 is raised, it moves within the guide frame 21 until it reaches the upper stop point. At this time, the position sensor 23 at that point senses the position of the limiting block 22 and triggers the lifting cylinder 5 to stop its operation. At this time, the roller brush structure reaches the designated position and is in an unused state. When the lifting plate 4 moves down, the limiting block 22 abuts against the inner bottom surface of the guide frame 21 and reaches the lower moving stop point. At this time, the corresponding position sensor 23 senses and triggers the lifting cylinder 5, so that the roller brush structure is in a stable working state for efficient cleaning of the floor.

[0042] 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 height-adjustable roller brush structure for a robotic vacuum cleaner, characterized in that, include: A roller brush housing with a rotatable roller brush inside, the roller brush being connected to a drive structure, and multiple sets of guide rods being provided on the top of the roller brush housing; A lifting plate on which the guide rod slides, and a spring is provided between the brush shell and the lifting plate; The lifting cylinders are rotatably connected at their ends to the lifting plate and the main body of the sweeping robot via the first hinge seat; The swing arm is rotatably connected at its ends to the lifting plate and the main body of the sweeping robot via a second hinge seat.

2. The adjustable sweeping robot brush structure according to claim 1, characterized in that, A dust collection hood is provided on the top of the roller brush housing, and the dust collection hood is connected to a vacuum generator through a dust collection port.

3. The adjustable sweeping robot brush structure according to claim 1, characterized in that, The roller brush has a docking hole in the center, and two rotating shafts are circumferentially inserted into the two ends of the docking hole. The shafts are axially positioned and rotate to dock with the bearing seats. The bearing seats are assembled on the roller brush housing by flanges and fasteners.

4. The adjustable sweeping robot brush structure according to claim 3, characterized in that, An extension plate is provided on the side of the bearing housing corresponding to the rotating shaft, and the extension plate is assembled onto the roller brush housing by fasteners.

5. The adjustable sweeping robot brush structure according to claim 3, characterized in that, The drive structure includes a first pulley, a second pulley, and a timing belt. The first pulley is mounted on the outer end of another rotating shaft by fasteners. The second pulley is connected to the output shaft of the servo motor on the roller brush housing. The timing belt is sleeved on the first pulley and the second pulley.

6. The adjustable sweeping robot brush structure according to claim 1, characterized in that, Silicone baffles are provided around the bottom opening of the roller brush housing, and the silicone baffles are assembled onto the roller brush housing via connecting plates.

7. The adjustable sweeping robot brush structure according to claim 1, characterized in that, The robot vacuum cleaner has a guide frame on its main body. The limiting block at the end of the lifting plate can be movably abutted against the inner bottom surface of the guide frame. The guide frame is also equipped with at least two sets of position sensors for sensing the limiting block at the upper and lower moving stop points of the lifting plate.

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