Anti-winding roll brush cleaning mechanism for a robot sweeper

Abstract

The utility model discloses a kind of anti-winding roll brush cleaning mechanisms for sweeping robot, it is related to the technical field of smart home, including cover, roll brush body, telescopic cavity and drive mechanism.Roll brush body is used to clean ground sundries, telescopic cavity is fixed in roll brush body axial one side, inside is equipped with blade, its side wall close to roll brush body is opened with the through slot compatible with blade, drive mechanism is connected with blade, can interval drive blade from through slot and stretch out close to roll brush body and cut and retract quickly, utilize through slot and scrape down when blocking winding and retreating in blade.Guide groove in the bottom of telescopic cavity and sliding block cooperation guide blade movement, drive mechanism uses electric push rod, through cross plate and drive blade telescopic.The utility model effectively solves the problem of roll brush winding, structure is stable, easy to maintain, cutting efficiency is high, improves the cleaning performance and service life of sweeping robot.

Description

Technical Field

[0001] This utility model relates to the field of smart home technology, specifically to an anti-tangling roller brush cleaning mechanism for a robot vacuum cleaner. Background Technology

[0002] With the rapid development of smart homes, robotic vacuum cleaners have become widely popular due to their automated cleaning functions. In the cleaning structure of a robotic vacuum cleaner, the roller brush is the core component, sweeping dust, hair, debris, and other impurities from the floor into the dust collection area through rotation. However, in actual use, flexible debris such as hair and threads easily become entangled on the roller brush. Once the roller brush is overwhelmed with debris, it not only reduces cleaning efficiency but may also increase the motor load, leading to overheating or even damage. Cleaning the entangled debris also causes considerable inconvenience for users. Existing anti-entanglement designs mostly employ specially shaped bristles or fixed cutting structures. Specially shaped bristles have limited anti-entanglement effectiveness, while fixed cutting structures are prone to bristle wear due to prolonged contact with the roller brush and cannot flexibly control the cutting action according to the entanglement situation, making it difficult to effectively solve the roller brush entanglement problem.

[0003] Therefore, those skilled in the art have provided an anti-tangling roller brush cleaning mechanism for a sweeping robot to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide an anti-tangling roller brush cleaning mechanism for a sweeping robot, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A cleaning mechanism for an anti-tangling roller brush in a robotic vacuum cleaner includes a housing, a roller brush body, a telescopic cavity, and a drive mechanism. The roller brush body is used to clean debris from the floor and has a bristle structure on its surface. It is driven to rotate by an external motor. The telescopic cavity is fixedly installed on one side of the roller brush body along its axial direction and serves as a space for the extension and retraction of the blades. The telescopic cavity contains blades, and a through groove adapted to the blades is formed on the side wall of the telescopic cavity near the roller brush body, providing a channel for the blades to extend and retract. The drive mechanism is connected to the blades.

[0007] As a further embodiment of this utility model: the upper end of the telescopic cavity is provided with a cover plate, which covers the outer shell of the cavity to form a closed space for accommodating the blade, and the cover plate is fixed by bolts.

[0008] As a further improvement of this utility model: the bottom of the telescopic cavity is provided with three guide grooves, and each of the three guide grooves is provided with a slider that slides in cooperation with the guide groove.

[0009] As a further embodiment of this utility model: the driving mechanism is an electric push rod, which is fixedly installed on the outer wall of the telescopic cavity on the side away from the roller brush body. The output end of the electric push rod extends through into the interior of the telescopic cavity, and a horizontal plate is fixedly connected to the piston rod end of the electric push rod.

[0010] As a further improvement of this utility model: the horizontal plate is fixedly connected to the three sliders, and the power of the electric push rod is transmitted to the sliders through the horizontal plate, thereby pushing the blade to extend or pulling the blade to retract, so as to realize the extension and retraction cutting action of the blade.

[0011] As a further improvement of this utility model: there are three through slots, each corresponding to one of the three blades, and each through slot provides a telescopic channel for the corresponding blade.

[0012] As a further improvement of this utility model: the blade is a long strip structure, and the blade has a cutting edge on the side near the roller brush body, and the cutting edge forms an angle of 30°-45° with the rotation direction of the roller brush body.

[0013] As a further improvement of this utility model, the width of the through groove is 0.5-1mm larger than the thickness of the blade. This dimensional difference can ensure that the blade can extend and retract smoothly in the through groove, and can also effectively prevent entanglement.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Highly efficient anti-tangling: The drive mechanism extends the blades at intervals to cut and quickly retracts, which can promptly cut off flexible debris such as hair and threads tangled on the roller brush body. Compared with the traditional fixed cutting structure, it avoids continuous wear of the brush bristles, effectively improves the anti-tangling effect, and ensures the cleaning efficiency of the robot vacuum cleaner.

[0016] 2. Stable and reliable structure: The guide groove at the bottom of the telescopic cavity cooperates with the slider to precisely guide the blade to move linearly along the axis of the brush body, ensuring the stability of the blade extension and retraction process and making the cutting action accurate and effective; the electric push rod, as the driving mechanism, can precisely control the extension and retraction of the blade and ensure the reliability of the cutting action.

[0017] 3. Easy to maintain: The cover plate at the top of the telescopic cavity is fixed with bolts, which is convenient for disassembly and installation, and makes it easy for users to inspect and maintain the blades and other components inside the telescopic cavity; the reasonable structural design reduces failures caused by entanglement and lowers the overall maintenance cost and frequency.

[0018] 4. Optimized cutting design: The three blades correspond one-to-one with the through grooves and work together to improve the cutting efficiency of tangled materials; the blade edge and the rotation direction of the roller brush body are at an angle of 30°-45°, which enhances the cutting effect; the reasonable difference between the width of the through groove and the thickness of the blade ensures smooth blade extension and retraction, and effectively blocks and scrapes away tangled materials, further improving the anti-tangling performance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an anti-tangling roller brush cleaning mechanism for a robotic vacuum cleaner.

[0020] Figure 2 This is a schematic diagram of the telescopic cavity in the anti-tangling roller brush cleaning mechanism of a robotic vacuum cleaner.

[0021] Figure 3 This is a schematic diagram of the drive mechanism in an anti-tangling roller brush cleaning mechanism for a robotic vacuum cleaner.

[0022] Figure 4 This is a top view of the telescopic cavity in the anti-tangling roller brush cleaning mechanism of a robotic vacuum cleaner.

[0023] In the diagram: 1. Cover; 2. Brush body; 3. Telescopic cavity; 4. Cover plate; 5. Drive mechanism; 6. Slider; 7. Horizontal plate; 8. Through groove; 9. Blade; 10. Guide groove. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] Reference Figures 1-4This embodiment provides an anti-tangling roller brush cleaning mechanism for a robotic vacuum cleaner, including a cover 1, a roller brush body 2, a telescopic cavity 3, and a drive mechanism 5. The roller brush body 2 is used to sweep debris from the ground. Its surface is provided with a bristle structure and is driven to rotate by an external motor. When the robotic vacuum cleaner is working, it sweeps dust, hair, debris, and other debris from the ground into the dust collection area of ​​the robotic vacuum cleaner. The telescopic cavity 3 is fixedly installed on one side of the roller brush body 2 along its axis, serving as a space for the extension and retraction of the blade 9. The telescopic cavity 3 contains the blade 9, and a through groove 8 adapted to the blade 9 is opened on the side wall of the telescopic cavity 3 near the roller brush body 2. The through groove 8 provides a channel for the blade 9 to extend and retract. The drive mechanism 5 is connected to the blade 9 and is used to drive the blade 9 to extend from the through groove 8, approach the roller brush body 2 for a cut, and quickly retract. By blocking tangled objects through the through groove 8 adapted to the blade 9 and scraping off the tangled objects when the blade 9 retracts, the debris tangled on the roller brush body 2 is cut and removed, preventing the roller brush from being tangled and affecting the normal operation of the robotic vacuum cleaner.

[0027] Example 2

[0028] Reference Figures 1-4 This embodiment is based on the previous embodiment, but differs from the previous embodiment in that the upper end of the telescopic cavity 3 is provided with a cover plate 4. The cover plate 4 covers the outer shell of the cavity to form a closed space for accommodating the blade 9. This closed space can protect the blade 9 and prevent dust and debris from entering and affecting the normal telescopic and cutting functions of the blade 9. The cover plate 4 is fixed by bolts, which is convenient for disassembly and installation, and facilitates the inspection and maintenance of the blade 9 and other components inside the telescopic cavity 3.

[0029] Furthermore, the bottom of the telescopic cavity 3 is provided with three guide grooves 10, and each of the three guide grooves 10 is provided with a slider 6 that slides in cooperation with the guide groove 10. The cooperation between the guide groove 10 and the slider 6 can accurately guide the blade 9 to move linearly along the axis of the brush body 2, ensuring that the blade 9 remains stable during the telescopic process and will not deviate, thereby ensuring the accuracy and effectiveness of the cutting.

[0030] Furthermore, the driving mechanism 5 is an electric push rod, which is fixedly installed on the outer wall of the telescopic cavity 3 on the side away from the roller brush body 2. The output end of the electric push rod extends through into the interior of the telescopic cavity 3, and the piston rod end of the electric push rod is fixedly connected to a horizontal plate 7. As a power source, the electric push rod can precisely control the extension and retraction of the piston rod, thereby driving the horizontal plate 7 to drive the blade 9 to perform telescopic movement.

[0031] Furthermore, the horizontal plate 7 is fixedly connected to the three sliders 6. The power of the electric push rod is transmitted to the sliders 6 through the horizontal plate 7, thereby pushing the blade 9 to extend or pulling the blade 9 to retract, so as to realize the telescopic cutting action of the blade 9.

[0032] Furthermore, there are three through slots 8, each corresponding to one of the three blades 9. Each through slot 8 provides a telescopic channel for the corresponding blade 9, enabling the three blades 9 to work together and improve the cutting efficiency and effect on the entangled material.

[0033] Furthermore, the blade 9 has a long strip structure, and the blade 9 has a cutting edge on the side near the roller brush body 2. The cutting edge is at an angle of 30°-45° with the rotation direction of the roller brush body 2. This angle setting allows the blade 9 to better contact and cut the debris wrapped around the roller brush body 2 when it extends to cut, thereby improving the success rate and efficiency of cutting.

[0034] Furthermore, the width of the through groove 8 is 0.5-1mm larger than the thickness of the blade 9. This dimensional difference can ensure that the blade 9 can smoothly extend and retract within the through groove 8, and can also effectively block entangled objects, scraping off the entangled objects when the blade 9 retracts. At the same time, it can prevent entangled objects from entering the telescopic cavity 3 due to excessive gaps, thus affecting the operation of the blade 9.

[0035] Working principle: Before the robot vacuum starts, the blade 9 is located in the telescopic cavity 3 and is in a retracted state, so it will not come into contact with the roller brush body 2, thus avoiding interference with the normal cleaning of the roller brush. When the robot vacuum starts working, the roller brush body 2 rotates under the drive of the motor, and the surface bristles sweep the dust, hair, debris and other debris on the ground into the dust collection area. During this process, flexible debris such as hair and threads may gradually become entangled on the roller brush body 2. The electric push rod extends intermittently, driving the horizontal plate 7 to move. The horizontal plate 7 is fixedly connected to the slider 6, which in turn pushes the blade 9 to extend from the through groove 8 along the guide groove 10 and approach the roller brush body 2. Since the blade 9 and the rotation direction of the roller brush body 2 are at an angle of 30°-45°, the blade 9 can effectively cut the debris entangled on the roller brush body 2 during its extension. After completing one cut, the piston rod of the electric push rod quickly retracts, pulling the blade 9 back quickly. During the retraction of the blade 9, the through groove 8 that matches the blade 9 blocks the entangled material and scrapes off the cut debris, causing it to detach from the roller brush body 2 and fall into the dust collection area of ​​the sweeping robot. This cycle continues, ensuring the cleanliness of the roller brush body 2 and preventing excessive debris from affecting the normal operation of the sweeping robot.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An anti-winding roller brush cleaning mechanism for a robot vacuum cleaner, characterized in that, The device includes a cover (1), a roller brush body (2), a telescopic cavity (3), and a drive mechanism (5). The roller brush body (2) is used to sweep debris from the ground. Its surface is provided with a bristle structure and is driven to rotate by an external motor. The telescopic cavity (3) is fixedly installed on one side of the roller brush body (2) along the axial direction and serves as a space for the telescopic movement of the blade (9). The telescopic cavity (3) contains the blade (9), and a through groove (8) adapted to the blade (9) is opened on the side wall of the telescopic cavity (3) near the roller brush body (2). The through groove (8) provides a channel for the blade (9) to extend and retract. The drive mechanism (5) is connected to the blade (9).

2. The anti-tangling roller brush cleaning mechanism for a sweeping robot according to claim 1, characterized in that, The upper end of the telescopic cavity (3) is provided with a cover plate (4), which covers the outer shell of the cavity to form a closed space for accommodating the blade (9), and the cover plate (4) is fixed by bolts.

3. The anti-tangling roller brush cleaning mechanism for a sweeping robot according to claim 2, characterized in that, The bottom of the telescopic cavity (3) is provided with three guide grooves (10), and each of the three guide grooves (10) is provided with a slider (6) that slides in cooperation with the guide groove (10).

4. The anti-tangling roller brush cleaning mechanism for a sweeping robot according to claim 3, characterized in that, The drive mechanism (5) is an electric push rod, which is fixedly installed on the outer wall of the telescopic cavity (3) away from the roller brush body (2). The output end of the electric push rod extends through into the interior of the telescopic cavity (3), and a horizontal plate (7) is fixedly connected to the piston rod end of the electric push rod.

5. The anti-tangling roller brush cleaning mechanism for a sweeping robot according to claim 4, characterized in that, The horizontal plate (7) is fixedly connected to the three sliders (6). The power of the electric push rod is transmitted to the sliders (6) through the horizontal plate (7), thereby pushing the blade (9) to extend or pulling the blade (9) to retract, so as to realize the extension and retraction cutting action of the blade (9).

6. The anti-tangling roller brush cleaning mechanism for a sweeping robot according to claim 1, characterized in that, There are three through slots (8), which correspond one-to-one with the three blades (9). Each through slot (8) provides a telescopic channel for the corresponding blade (9).

7. The anti-tangling roller brush cleaning mechanism for a sweeping robot according to claim 1, characterized in that, The blade (9) is a long strip structure, and the blade (9) has a cutting edge on the side near the roller brush body (2), and the cutting edge is at an angle of 30°-45° with the rotation direction of the roller brush body (2).

8. The anti-tangling roller brush cleaning mechanism for a sweeping robot according to claim 1, characterized in that, The width of the through groove (8) is 0.5-1mm larger than the thickness of the blade (9). This size difference can ensure that the blade (9) can extend and retract smoothly in the through groove (8) and effectively block the entangled material.

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