Slope structure of dust box entrance of sweeping robot

Abstract

The present application relates to the technical field of robot sweeper accessories, and discloses a garbage box entrance slope structure of a robot sweeper, which comprises a garbage box entrance slope structure main body, a screw fixing hole 3 is arranged on the garbage box entrance slope structure main body and is used for fixing a garbage box, a front wall 4 of the garbage box entrance slope structure main body is arranged at the entrance of a garbage box 1, and the front of the garbage box entrance slope structure main body is in a groove type circular arc shape and is matched with the arc shape formed by the rotation of a roller brush. Small hard particles which are difficult to clean can be stably and quickly introduced into the interior of the garbage box.

Description

Technical Field

[0001] This invention relates to the field of robotic vacuum cleaner accessories technology, specifically to a ramp structure for the dustbin inlet of a robotic vacuum cleaner. Background Technology

[0002] With the rapid iteration of smart home technology, robotic vacuum cleaners, with their automated and intelligent cleaning advantages, have been widely used in various indoor cleaning scenarios such as homes and offices, becoming a core intelligent device to replace manual floor cleaning. Robotic vacuum cleaners mainly rely on the rotating sweeping motion of the bottom brush combined with the negative pressure suction of the fan to collect dust, debris, particles, and other garbage from the floor into the dustbin, completing the floor cleaning operation. The design of the airflow guiding structure at the dustbin inlet directly determines the overall cleaning and collection efficiency of the machine and is one of the key structures affecting the cleaning performance of robotic vacuum cleaners.

[0003] Currently, conventional robotic vacuum cleaners on the market have a small gap between the roller brush and the dustbin inlet, lacking a smooth airflow design. In actual cleaning, while the existing structure can effectively collect lightweight, large-volume debris such as hair, lint, and large particles using the roller brush and negative pressure suction, it struggles with high-density, small-diameter debris like small gravel, fine sand, and tiny hard particles that often accumulate in the gaps between the brush bristles and fall to the floor. The existing structure has a significant limitation in cleaning these fine particles.

[0004] Specifically, small gravel and similar waste are heavy, small in volume, and have strong adhesion. During the rotating sweeping process of the roller brush, due to the obstruction and limitation of the straight-face structure, the small gravel and granules are prone to bouncing, slipping, and getting stuck at the junction of the roller brush and the waste container inlet, making it difficult to smoothly enter the waste container. At the same time, the traditional flat transition structure cannot guide and gather the particulate waste swept out by the roller brush. Some small gravel and granules will be carried back to the ground as the roller brush reverses, or get stuck in the gap between the roller brush and the housing. This not only leads to residual stains on the ground and reduced cleaning coverage, but the long-term retention of gravel and granules will also wear down the roller brush bristles and block the air ducts, resulting in problems such as reduced equipment cleaning efficiency and shortened service life.

[0005] In current technologies, most robotic vacuum cleaners improve the cleaning effect of particulate matter by increasing the suction power of the fan and optimizing the speed of the roller brush. However, these optimization methods are energy-intensive, difficult to reduce noise, and cannot fundamentally solve the problem of poor collection of small grit, resulting in limited improvement in cleaning performance. In summary, the current transition structure of the dustbin inlet of robotic vacuum cleaners suffers from poor airflow, low collection rate of small particles, and significant cleaning residue. There is an urgent need to design a new dustbin inlet airflow guiding structure to achieve smooth collection of difficult-to-clean particulate matter such as small grit, thereby improving the overall cleaning performance of the machine. Summary of the Invention

[0006] This invention provides a ramp structure for the trash can inlet of a sweeping robot.

[0007] According to one aspect of this disclosure, a garbage bin inlet ramp structure for a sweeping robot is provided. The garbage bin inlet ramp structure includes: a garbage bin inlet ramp structure body, wherein the garbage bin inlet ramp structure body is provided with screw fixing holes 3 for fixing to the garbage bin; the garbage bin inlet ramp structure body is disposed on the front wall 4 at the inlet of the garbage bin 1. The front of the main body of the garbage box inlet ramp structure is a groove-shaped arc, which matches the arc formed by the rotation of the roller brush.

[0008] Preferably, the left and right sides of the main body of the garbage box inlet ramp structure are also provided with side cover handles 8 for fixing the side cover 2 of the main body of the garbage box inlet ramp structure.

[0009] Preferably, multiple dust guide holes 5 are provided on the surface of the main body of the garbage box inlet ramp structure that contacts the roller brush. The main body of the garbage box inlet ramp structure is a hollow structure, and the hollow structure is a dust collection chamber 6, which is used to store the dust entering from the dust guide holes 5.

[0010] Preferably, a dust-guiding strip 7 is provided at the end of the main body of the garbage box inlet ramp structure that is close to the ground.

[0011] Compared with the prior art, the beneficial effects of the present invention are: To address the shortcomings of existing robotic vacuum cleaners, such as poor airflow at the dustbin inlet transition structure, difficulty in collecting small, hard particles like grit, excessive cleaning residue, and easy wear of parts, an optimized design was developed for the dustbin inlet ramp structure to adapt to the working trajectory of the roller brush. Through the coordinated use of a curved surface fitting structure, a dust guiding and collecting structure, a limiting and fixing structure, and a dustproof fitting structure, this design offers several significant technical advantages compared to traditional straight or right-angle transition structures. Specific technical effects are as follows: Firstly, this design employs a grooved, arc-shaped ramp structure, ensuring precise alignment between the arc-shaped front surface of the main body and the arc-shaped motion trajectory formed by the rotating brush. When the brush rotates and sweeps up high-density small particles such as gravel and fine sand, the arc-shaped surface creates a continuous and smooth flow path, effectively preventing small particles from bouncing, slipping, or getting stuck at the connection points. This allows even the hardest-to-clean tiny particles to be smoothly and quickly guided into the dustbin, fundamentally improving the success rate of small-diameter debris collection, significantly reducing cleaning residue on the floor, and effectively enhancing the overall cleaning coverage and quality of the robot vacuum. Simultaneously, the main body is securely assembled with the dustbin using screw holes, ensuring high installation precision and a strong connection. This prevents loosening or shifting over long-term use, guaranteeing stable long-term operation of the equipment.

[0012] Secondly, this structure features side cover handles on both sides of the main slope structure, allowing for quick and precise assembly of the side covers and achieving closed-off positioning on both sides of the slope structure. On one hand, this seals the gaps on both sides of the structure, preventing fine dust and grit from overflowing and falling back to the ground, eliminating cleaning dead zones. On the other hand, it provides stable positioning and fixation between the side covers and the main slope structure, resulting in stronger overall sealing and integrity. Assembly, disassembly, and maintenance are convenient, facilitating future equipment inspection, waste box cleaning, and parts replacement, thus improving the ease of use of the equipment.

[0013] Furthermore, this structure features several dust-guiding holes on the end face that contacts the roller brush, forming an integrated "dust guiding + dust storage" channel in conjunction with a hollow dust collection chamber. Under the sweeping action of the roller brush and the negative pressure of the fan, some fine dust and suspended particles can directly enter the internal dust collection chamber through the dust-guiding holes for collection. This overcomes the limitations of traditional structures that rely solely on a large inlet channel for collecting waste, allowing for targeted collection of micro-dust and fine particulate matter, further improving dust removal efficiency. Simultaneously, the hollow dust collection chamber structure makes efficient use of the internal space of the sloping structure, eliminating the need for additional internal space within the machine. Its high structural integration and space utilization make it suitable for the miniaturized and compact assembly requirements of robotic vacuum cleaners.

[0014] Finally, a dust-guiding strip is installed at the bottom of the structure near the ground, creating a flexible fit between the bottom of the ramp structure and the ground. This dust-guiding strip conforms to variations in ground level, sealing gaps at the bottom and effectively preventing fine sand and dust from leaking out. Simultaneously, it acts as a pre-collection and sweeping guide for ground debris, further improving debris handling efficiency in conjunction with the curved guide surface. It also buffers the vibration and friction during roller brush operation, reducing hard wear between the structure and the ground / roller brush, lowering equipment operating noise, effectively extending the service life of the roller brush and ramp structure, and reducing equipment failure rates and subsequent maintenance costs.

[0015] In summary, by optimizing the overall structural form and supporting functional structure of the trash can inlet, this invention effectively solves the problems of poor small particle trash collection, weak structural sealing, easy wear and tear, and inconvenient maintenance in the prior art. Without increasing the power consumption of the device or increasing the difficulty of noise reduction, it significantly improves the ability of the sweeping robot to collect hard-to-clean trash such as gravel and dust, and takes into account cleaning performance, structural stability and durability. It has extremely high practicality and market promotion value. Attached Figure Description

[0016] Figure 1 A schematic diagram of a trash can structure with an entrance ramp; Figure 2 This is a structural diagram showing the disassembly of the entrance ramp structure.

[0017] The components include: 1. Trash box; 2. Side cover; 3. Screw fixing holes; 4. Front wall; 5. Dust guide hole; 6. Dust collection bin; 7. Dust guide strip; 8. Side cover handle. Detailed Implementation

[0018] Various exemplary embodiments, features, and aspects of this disclosure will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0019] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0020] Furthermore, to better illustrate this disclosure, numerous specific details are set forth in the following detailed description. Those skilled in the art will understand that this disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art have not been described in detail in order to highlight the main points of this disclosure.

[0021] refer to Figures 1-2 A garbage bin inlet ramp structure for a sweeping robot, the garbage bin inlet ramp structure comprising: a garbage bin inlet ramp structure body, the garbage bin inlet ramp structure body having screw fixing holes 3 for fixing to the garbage bin; the garbage bin inlet ramp structure body being disposed on the front wall 4 at the inlet of the garbage bin 1; The front of the main body of the garbage box inlet ramp structure is a groove-shaped arc, which matches the arc formed by the rotation of the roller brush.

[0022] Preferably, the left and right sides of the main body of the garbage box inlet ramp structure are also provided with side cover handles 8 for fixing the side cover 2 of the main body of the garbage box inlet ramp structure.

[0023] Preferably, multiple dust guide holes 5 are provided on the surface of the main body of the garbage box inlet ramp structure that contacts the roller brush. The main body of the garbage box inlet ramp structure is a hollow structure, and the hollow structure is a dust collection chamber 6, which is used to store the dust entering from the dust guide holes 5.

[0024] Preferably, a dust-guiding strip 7 is provided at the end of the main body of the garbage box inlet ramp structure that is close to the ground.

[0025] Working principle: During operation, as the roller brush rotates and sweeps up high-density small particles of debris such as gravel and fine sand on the ground, its arc-shaped surface forms a continuous and smooth guide path. This effectively prevents small particles of debris from bouncing, slipping, or getting stuck at the connection points. It can smoothly and quickly guide even the smallest hard particles that are difficult to clean into the dustbin, improving the success rate of collecting small-diameter debris from the structural source, significantly reducing cleaning residue on the ground, and effectively improving the overall cleaning coverage and cleaning quality of the robot vacuum cleaner.

[0026] Several dust guide holes are made on the end face that contacts the roller brush, forming an integrated "dust guiding + dust storage" channel in conjunction with a hollow dust collection chamber structure. Under the sweeping action of the roller brush and the negative pressure of the fan, some fine dust and suspended dust can directly enter the internal dust collection chamber through the dust guide holes for collection. This overcomes the limitations of traditional structures that rely solely on a large inlet channel to collect waste, allowing for targeted collection of micro-dust and fine particulate matter, further improving dust removal efficiency. At the same time, the hollow dust collection chamber structure makes reasonable use of the internal space of the sloping structure, without occupying additional internal space of the machine body. It has a high degree of structural integration and high space utilization, adapting to the miniaturized and compact assembly requirements of robotic vacuum cleaners.

[0027] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A ramp structure for the trash can inlet of a sweeping robot, characterized in that, The garbage box inlet ramp structure includes: a garbage box inlet ramp structure body, the garbage box inlet ramp structure body is provided with screw fixing holes (3) for fixing with the garbage box; the garbage box inlet ramp structure body is set on the front wall (4) at the inlet of the garbage box (1). The front of the main body of the garbage box inlet ramp structure is a groove-shaped arc, which matches the arc formed by the rotation of the roller brush.

2. The ramp structure for the trash can inlet of a sweeping robot according to claim 1, characterized in that, The main body of the garbage box inlet ramp structure is also provided with side cover handles (8) on the left and right sides for fixing the side cover (2) of the main body of the garbage box inlet ramp structure.

3. The ramp structure for the trash can inlet of a sweeping robot according to claim 1, characterized in that, Multiple dust guide holes (5) are provided on the surface of the garbage box inlet ramp structure that contacts the roller brush. The garbage box inlet ramp structure is a hollow structure, and the hollow structure is a dust collection chamber (6). The dust collection chamber (6) is used to store the dust entering from the dust guide holes (5).

4. The ramp structure for the trash can inlet of a sweeping robot according to claim 1, characterized in that, The main body of the garbage box inlet ramp structure is equipped with a dust-guiding strip (7) at the end near the ground.

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