Cleaning robot

Abstract

The present disclosure relates to a cleaning robot, which comprises a body and a fence assembly, the body is provided with a roller brush cavity for cooperating with a roller brush, the roller brush cavity has an open end facing a working surface; the fence assembly is arranged adjacent to the roller brush cavity; the fence assembly is connected to the body through a transmission mechanism; the fence assembly is configured to move between a first position and a second position, when located in the first position, the fence assembly is configured to have a first distance from the working surface, when located in the second position, the fence assembly is configured to have a second distance from the working surface; wherein the first distance is less than the second distance; wherein the transmission mechanism is configured to move the fence assembly in the direction of the first position when subjected to an external force given by the working surface or an external force given by an obstacle. The cleaning robot provided by the present disclosure can move the fence assembly between the first position and the second position based on different cleaning working surfaces, thereby improving the cleaning efficiency.

Description

Technical Field

[0001] This disclosure relates to the field of cleaning equipment technology, and specifically to a cleaning robot. Background Technology

[0002] With the rapid development of technology and the continuous improvement of living standards, automated cleaning equipment has been widely used in homes, offices and various commercial settings, significantly improving cleaning efficiency and reducing manpower burden.

[0003] Existing robotic vacuum cleaners typically have a roller brush located inside a brush chamber on their bottom, which cleans the work surface by rotating. A suction port is located near the roller brush, through which dirt from the work surface is sucked into a dustbin for temporary storage. A rubber seal extending towards the work surface is often added to the roller brush chamber to improve its sealing against the ground, achieving a higher vacuum level and enhancing the suction effect of the suction port. This type of cleaning robot can only be applied to certain specific scenarios and cannot meet all the cleaning needs of a typical household. For example, while a high vacuum is indeed necessary to effectively remove dust and debris deeply embedded in the fibers when cleaning carpets, excessively high vacuum can cause excessive friction between the rubber seal and the ground when cleaning smooth, hard surfaces (such as wood floors and tiles). This can hinder the robot's smooth movement, increase energy consumption, and may even cause the drive wheels to slip or the device to jam. Utility Model Content

[0004] In view of this, the present disclosure provides a cleaning robot to address the technical deficiencies existing in the prior art.

[0005] To achieve the above objectives, this disclosure provides a cleaning robot, the cleaning robot comprising: The machine body is provided with a roller brush cavity for cooperating with the roller brush, the roller brush cavity having an open end facing the working surface; A barrier assembly is disposed adjacent to the roller brush cavity; the barrier assembly is connected to the machine body via a transmission mechanism; the barrier assembly is configured to move between a first position and a second position, wherein when in the first position the barrier assembly is configured to have a first distance from the working surface, and when in the second position the barrier assembly is configured to have a second distance from the working surface; wherein the first distance is less than the second distance; The transmission mechanism is configured to drive the enclosure assembly to move toward the first position when subjected to an external force from the working surface or an obstacle.

[0006] In one embodiment of this disclosure, the enclosure assembly is located at the open end of the roller brush cavity and is configured to contact the working surface or have a predetermined gap when in a first position.

[0007] In one embodiment of this disclosure, the transmission mechanism has a force-receiving end, which is configured to at least partially protrude from the bottom of the body and is configured to cause the transmission mechanism to drive the enclosure assembly to move in the direction of the first position when subjected to an external force.

[0008] In one embodiment of this disclosure, the force-receiving end of the transmission mechanism is provided with a top block, which at least partially protrudes from the bottom of the body and is configured to be subjected to force and move away from the working surface during the robot's movement or when it walks to a predetermined position, so that the transmission mechanism drives the enclosure assembly to move in the direction of the first position.

[0009] In one embodiment of this disclosure, the sidewalls of the top block have chamfers.

[0010] In one embodiment of this disclosure, the transmission mechanism includes a transmission swing arm hinged to the machine body, with the two opposite ends of the transmission swing arm referred to as a first end and a second end, respectively. The first end of the transmission swing arm is connected to the enclosure assembly, and the top block is configured to push the second end to move away from the working surface, so that the first end of the transmission swing arm drives the enclosure assembly to move in the direction of the first position.

[0011] In one embodiment of this disclosure, the two ends of the roller brush are configured to be rotatably connected to the machine body via a rotating shaft, the transmission swing rod is provided with a shaft hole, and the transmission swing rod is configured to be sleeved on the rotating shaft through the shaft hole.

[0012] In one embodiment of this disclosure, the second end of the transmission lever is configured to engage with the top block on the machine body; the distance from the second end of the transmission lever to the hinge point is greater than the distance from the first end of the transmission lever to the hinge point, with the hinge point as the boundary.

[0013] In one embodiment of this disclosure, the body is provided with a mounting groove, and a gap is formed between the roller brush cavity and the mounting groove; at least a portion of the enclosure assembly is configured to be located within the gap.

[0014] In one embodiment of this disclosure, the transmission mechanism further includes a first connecting rod and a second connecting rod respectively hinged to the machine body; the two ends of the first connecting rod and the second connecting rod are respectively referred to as the force-applying end and the force-receiving end; wherein, the force-applying end of the first connecting rod cooperates with the second end of the transmission swing rod, the force-receiving end of the first connecting rod cooperates with the force-applying end of the second connecting rod, and the force-receiving end of the second connecting rod cooperates with the top block.

[0015] In one embodiment of this disclosure, the first link and the second link extend along a direction perpendicular to the drive lever and are configured to be distributed sequentially in a direction perpendicular to the drive lever.

[0016] In one embodiment of this disclosure, the length of the first link and / or the second link is less than the length of the transmission swing arm.

[0017] In one embodiment of this disclosure, two transmission mechanisms are provided, which are symmetrically distributed and connected to both ends of the enclosure assembly, respectively; wherein the force-receiving ends of the two transmission mechanisms are configured to cooperate with the same top block.

[0018] In one embodiment of this disclosure, an elastic device is provided between the transmission mechanism and the body, or between the enclosure assembly and the body, the elastic device being configured to move the enclosure assembly to a second position when the external force on the transmission mechanism is removed.

[0019] The cleaning robot disclosed herein has a barrier assembly connected to its body via a transmission mechanism. This barrier assembly can move to a first position closer to the work surface and to a second position farther away from the work surface. Therefore, when the work surface to be cleaned is a hard surface, the transmission mechanism can move the barrier assembly to the second position farther away from the work surface, preventing obstruction of the cleaning robot from sucking in large particles of impurities, thereby improving cleaning efficiency. When the work surface to be cleaned is a carpet or other material with long fibers or a fibrous structure, the transmission mechanism can move the barrier assembly to the first position closer to the work surface, allowing it to effectively press down and comb the carpet fibers, improving the seal between the brush chamber and the work surface. This exposes impurities hidden deep within the fibers, making them easier for the cleaning robot to suck in, significantly improving cleaning efficiency.

[0020] Other features and advantages of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a cleaning robot provided in one embodiment of the present disclosure; Figure 2 yes Figure 1 Enlarged view of the circled area; Figure 3 This is a schematic diagram of the structure of a cleaning robot provided in one embodiment of the present disclosure; Figure 4 yes Figure 3 Enlarged view of the circled area; Figure 5 This is a schematic diagram of the structure of a cleaning robot provided in one embodiment of the present disclosure; Figure 6 yes Figure 5 Enlarged view of the circled area; Figure 7 This is a partial structural schematic diagram of a cleaning robot provided in an embodiment of the present disclosure; Figure 8 This is a partial structural schematic diagram of a cleaning robot provided in an embodiment of the present disclosure; Figure 9 This is a partial structural schematic diagram of a cleaning robot provided in an embodiment of the present disclosure; Figure 10 This is a partial structural schematic diagram of a cleaning robot provided in one embodiment of the present disclosure.

[0022] 1-Main body; 2-Roller brush cavity; 21-Roller brush cavity body; 22-Gap; 3-Open end; 4-Roller brush; 5-Blocking assembly; 61-Top block; 611-First chamfer; 612-Second chamfer; 62-Transmission swing rod; 621-First end; 622-Second end; 623-Hinge point; 63-First connecting rod; 64-Second connecting rod; 7-Elastic device. Detailed Implementation

[0023] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present disclosure.

[0024] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use.

[0025] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0027] The specific embodiments of this disclosure are described below with reference to the accompanying drawings.

[0028] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0029] In this article, "first," "second," etc., are used only to distinguish one another, and not to indicate degree of importance, order, or prerequisite for each other.

[0030] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0031] This disclosure provides a cleaning robot, which can be a household cleaning robot, such as a sweeping robot, a mopping robot, or a combined sweeping and mopping robot, suitable for efficiently cleaning various work surfaces that require cleaning, including hard floors (such as wood floors and tiles) and soft carpets. The cleaning robot includes a body with a brush chamber that houses a roller brush, which is used to directly contact and clean the work surface.

[0032] The cleaning robot disclosed herein has a barrier assembly positioned adjacent to the roller brush chamber. This barrier assembly can be, for example, a soft material with certain elastic properties, or a composite structure of hard and thermally conductive materials, which will not be specifically described here. The barrier assembly is configured to be connected to the robot body via a transmission mechanism. When the transmission mechanism is subjected to an external force, it can move the barrier assembly to a first position closer to the working surface and to a second position farther away from the working surface, thereby changing the distance between the barrier assembly and the working surface.

[0033] In existing technologies, when cleaning robots operate on hard surfaces, the fixed barrier components push large particles of debris along the way, hindering their effective pickup and intake by the roller brush, resulting in a significant reduction in cleaning efficiency. However, when cleaning surfaces such as carpets with long fibers, these fixed barrier components can improve cleaning effectiveness to some extent by compressing the carpet fibers.

[0034] The cleaning robot disclosed herein has a barrier assembly connected to its body via a transmission mechanism. This barrier assembly can move to a first position closer to the work surface and to a second position farther away from the work surface. Therefore, when the work surface to be cleaned is a hard surface, the transmission mechanism can move the barrier assembly to the second position farther away from the work surface, preventing obstruction of the cleaning robot from sucking in large particles of impurities, thereby improving cleaning efficiency. When the work surface to be cleaned is a carpet or other material with long fibers or a fibrous structure, the transmission mechanism can move the barrier assembly to the first position closer to the work surface, allowing it to effectively press down and comb the carpet fibers, improving the seal between the brush chamber and the work surface. This exposes impurities hidden deep within the fibers, making them easier for the cleaning robot to suck in, significantly improving cleaning efficiency.

[0035] The technical solution of this disclosure will be described in detail below with reference to the accompanying drawings.

[0036] Figure 1 , Figure 3 , Figure 5 The diagram illustrates part of the structure of the cleaning robot disclosed herein. (Reference) Figure 1 ,、 Figure 3 The cleaning robot disclosed herein includes a body 1, which provides the mounting base for the cleaning robot. All components of the cleaning robot can be directly or indirectly mounted on the body 1. For those skilled in the art, the cleaning robot also includes a walking mechanism and a cleaning mechanism mounted on the body 1. As the walking mechanism drives the body 1 to walk on the working surface, the cleaning mechanism cleans the working surface through contact with the working surface, which will not be described in detail here.

[0037] Specifically, refer to Figure 2 , Figure 4 The robot body 1 has a brush cavity 2 for cooperating with the brush 4. The brush cavity 2 has an open end 3 facing the work surface. The shape of the brush cavity 2 can be adapted to the shape of the brush 4, allowing the brush 4 to rotate within the brush cavity 2. The brush 4 can extend from the open end 3 of the brush cavity 2 to contact the work surface, thus cleaning the work surface. The brush 4 of this disclosure can be a mopping brush that operates with water, achieving mopping cleaning of the work surface through water application; or it can be a sweeping brush with bristle bundles, sweeping away solid foreign objects on the ground during rotation. Taking the sweeping brush as an example, when the cleaning robot moves in the forward direction, the brush 4 can rotate around its axis under the action of the motor, performing rolling cleaning on the work surface it passes through. It can sweep up or lift dust, debris, and other impurities adhering to the work surface; for surfaces with long hair or fiber structures such as carpets, it can also beat and comb the fibers, loosening deeply embedded impurities and making them easier for the cleaning robot to suck in. During the cleaning process, impurity particles on the working surface are sucked into the dust collection box inside the machine body 1 through the opening end 3 for collection and storage.

[0038] refer to Figure 1 The cleaning robot disclosed herein has a baffle assembly 5 installed on its body, adjacent to the roller brush chamber 2. The baffle assembly 5 can be made of an elastic material, or at least its lower end in contact with the working surface can be made of an elastic material to prevent rigid collisions between the baffle assembly 5 and the working surface. The baffle assembly 5 extends along the length of the roller brush chamber 2 and extends vertically from the body 1 towards the working surface. To allow the cleaning robot to move smoothly on the working surface, there is a certain distance between the bottom of the body 1 and the working surface, which can also be understood as the distance between the opening end 3 of the roller brush chamber 2 and the working surface. This distance affects the vacuum level of the roller brush chamber 2, thus affecting the suction effect of the suction port. By installing the downwardly extending baffle assembly 5, the sealing between the roller brush chamber 2 and the working surface can be improved to some extent, thereby ensuring a sufficiently large negative pressure is generated between the opening end 3 and the working surface to pick up solid foreign objects and suck them into the cleaning robot's dust box for storage.

[0039] In one specific embodiment of this disclosure, the baffle assembly 5 is located at the opening end 3 of the roller brush chamber 2. Specifically, the baffle assembly 5 can be positioned at the front of the roller brush chamber 2. This is because the suction port is typically located at the rear of the roller brush chamber 2, and the baffle assembly 5 positioned at the front can block the airflow from entering the roller brush chamber 2, thereby increasing the vacuum level within the roller brush chamber 2. In another embodiment, the baffle assembly 5 can be positioned at the rear of the roller brush chamber 2, or it can be located at other positions.

[0040] In the cleaning robot disclosed herein, a barrier assembly 5 is configured to be connected to the body 1 via a transmission mechanism. The barrier assembly 5 is configured to move between a first position and a second position. When in the first position, the barrier assembly 5 is configured to have a first distance from the working surface; when in the second position, the barrier assembly 5 is configured to have a second distance from the working surface. The first distance is less than the second distance. In this embodiment, the first distance can be zero, in which case the barrier assembly 5 is in contact with or has an interference fit with the working surface. The first distance can also be a predetermined gap, i.e., no contact with the working surface.

[0041] When the transmission mechanism is subjected to external force, it can move the enclosure assembly 5 towards the work surface to a first position and away from the work surface to a second position. This changes the distance between the enclosure assembly 5 and the work surface, allowing the cleaning robot to adapt to different cleaning scenarios. For example, when the work surface is a hard surface, it can be swept and / or mopped; however, when the work surface is carpeted, it may not be necessary to mop the carpet, and only sweeping is required.

[0042] For example, when the working surface is a hard surface, refer to Figure 7 The enclosure component 5 can move to the second position. When it is in the second position, there is a large gap between the enclosure component 5 and the working surface. During the robot's movement, larger particles of impurities can be smoothly sucked into the dust box for storage through the gap between the enclosure component 5 and the working surface.

[0043] When the working surface is a high-resistance surface such as carpet, refer to Figure 8The barrier assembly 5 can move to the first position. As a leading structure, the barrier assembly 5 first contacts and presses into the carpet fiber layer. By applying downward pressure, it overcomes the elastic resistance of the carpet fibers, effectively pushing down, flattening, or combing the originally upright or tangled fibers. This allows dust, debris, and other impurities that were originally deeply embedded, hidden, or wrapped inside the fibers to be fully exposed on the fiber surface and sucked into the dust collection device of the cleaning robot through the opening end 3, significantly improving cleaning efficiency. Furthermore, because the barrier assembly 5 is in contact with the carpet fibers, it further improves the seal between the opening end 3 and the carpet, allowing dust, debris, and other impurities that were originally deeply embedded, hidden, or wrapped inside the fibers to be sucked in by a larger airflow, further improving the cleaning effect.

[0044] In one embodiment of this disclosure, when the barrier assembly 5 is in the first position, it may be in contact with the work surface or have a predetermined gap. For example, when the work surface is a carpet, especially a long-pile carpet, even if the barrier assembly 5 is a certain distance from the deep surface of the carpet, it will still interfere with the carpet fibers to a certain extent, improving the cleaning effect on the carpet. In addition, the predetermined gap can also prevent excessive resistance between the barrier assembly 5 and the carpet fibers, thus avoiding hindering the movement of the cleaning robot.

[0045] The enclosure component 5 of this disclosure can move between a first position and a second position under the drive of a transmission mechanism. This allows the cleaning robot to be adapted to different cleaning scenarios, meeting the different needs of different users, improving the user experience, and ensuring cleaning effectiveness in different cleaning scenarios. The transmission mechanism of this disclosure can be electrically driven, for example, by a motor. The cleaning robot can determine the type of the work surface based on its stored map or sensors, and the motor drives the transmission mechanism to move the enclosure component 5 to a position matching the type of cleaning work surface.

[0046] In one embodiment of this disclosure, the transmission mechanism is configured to move the enclosure assembly towards a first position when subjected to an external force from the working surface or an obstacle. That is, in the cleaning robot of this disclosure, the descent of the enclosure assembly 5 is passive. As the cleaning robot moves on the working surface, the transmission mechanism is subjected to an external force from the working surface or an obstacle. Under this force, the transmission mechanism moves the enclosure assembly 5 towards the working surface to the first position, thereby adaptively adjusting the gap between the enclosure assembly 5 and the working surface to adapt to different cleaning needs of different working surfaces. For example, when the cleaning robot moves from a hard working surface to a carpet, the carpet fibers interfere with the transmission mechanism, generating a relative force. Under this force, the transmission mechanism can move the enclosure assembly 5 down to the first position to interfere with the carpet fibers, improving the cleaning robot's adaptive cleaning capability for different working surfaces.

[0047] Specifically, the transmission mechanism of this disclosure has a force-receiving end, which is configured to at least partially protrude from the bottom of the body 1, and is configured to drive the enclosure assembly 5 to move in the direction of the first position when subjected to external force. In the specific working process, the force-receiving end protruding from the bottom of the body 1 serves as a leading component that directly contacts the working surface or obstacle. When encountering a working surface with greater resistance, it becomes the main force-receiving point, bearing the force exerted by the working surface or obstacle, and converting this force into driving force through the transmission mechanism, driving the enclosure assembly 5 to move in the direction of the first position.

[0048] Further, refer to Figure 3 , Figure 7 The transmission mechanism has a top block 61 at its force-receiving end. The top block 61 protrudes at least partially from the bottom of the body 1, serving as a leading trigger component that prioritizes contact with the work surface or obstacles during the robot's movement. It is configured to move away from the work surface after being subjected to force during the robot's movement or when it reaches a predetermined position, thereby causing the transmission mechanism to drive the enclosure assembly 5 towards the first position. When the cleaning robot encounters resistance on the work surface, such as sinking into a thick carpet, the carpet fibers exert a continuous upward force on the top block 61. This force can be converted by the transmission mechanism into a driving force that propels the enclosure assembly 5 towards the first position. Thus, the upward movement of the top block 61 is converted into a downward pressing movement of the enclosure assembly 5, allowing the enclosure assembly 5 to adaptively adjust its position on different work surfaces or obstacles to improve cleaning efficiency.

[0049] When the work surface is carpet, refer to Figure 1 , Figure 3 To prevent the top block 61 from getting stuck while pushing the carpet fibers, the sidewalls of the top block 61 are chamfered. Specifically, the front sidewall of the top block 61 has a first chamfer 611. When the cleaning robot moves forward, the carpet fibers are guided along the direction of the first chamfer 611, which can smoothly convert the resistance in the direction of travel into the force for the top block 61 to move upward. This is beneficial for the upward movement of the top block 61 and can also significantly reduce the walking resistance of the cleaning robot, preventing the fibers from being hooked and blocked by the right-angled edge of the top block 61. And / or, the rear sidewall of the top block 61 has a second chamfer 612, which allows the cleaning robot to smoothly lift the top block 61 under the action of the carpet limit during the backward movement. The double chamfer design reduces the normal component force and increases the tangential component force when the fibers contact the top block 61, promoting the sliding of the fibers along the inclined surface, ensuring the smoothness and continuity of the cleaning process, and thus improving cleaning efficiency.

[0050] The transmission mechanism disclosed herein can employ transmission mechanisms well-known to those skilled in the art, such as chain drives, belt drives, and gear drives. In a specific embodiment of this disclosure, reference is made to… Figure 3 The transmission mechanism includes a transmission swing arm 62 hinged to the body 1. The two opposite ends of the transmission swing arm 62 are designated as a first end 621 and a second end 622. The first end 621 of the transmission swing arm 62 is connected to the enclosure assembly 5. The top block 61 is configured to push the second end 622 in a direction away from the working surface, so that the first end 621 of the transmission swing arm 62 drives the enclosure assembly 5 to move in the direction of the first position. Specifically, the transmission swing arm 62 can be hinged to the body 1, allowing its two ends to move in opposite directions. The first end 621 of the transmission swing arm 62 can be fixedly connected to or hinged to the enclosure assembly 5, and the second end 622 of the transmission swing arm 62 can directly or indirectly cooperate with the top block 61. When the cleaning robot is moving, if the top block 61 is subjected to an external force and moves in a direction away from the working surface, the top block 61 can directly or indirectly push the second end 622 of the transmission swing arm 62 to move synchronously in a direction away from the working surface. Due to the lever effect of the swing arm, the movement of the second end 622 of the transmission swing arm 62 will cause the first end 621 to produce a reverse displacement, thereby pulling the enclosure assembly 5 to move towards the first position closer to the working surface.

[0051] In one specific embodiment of this disclosure, reference is made to Figure 9 , Figure 10 The transmission swing arm 62 is configured to be located outside the roller brush 4, and the hinge point 623 of the transmission swing arm 62 is configured to be located on the rotation axis of the roller brush 4. That is, the transmission swing arm 62 rotates around the rotation axis of the roller brush 4, thereby solving the problem of interference between the transmission swing arm 62 and the roller brush 4 or other components when the transmission swing arm 62 swings. Specifically, the two ends of the roller brush 4 are configured to be rotatably connected to the body 1 through a rotating shaft. The transmission swing arm 62 is provided with a shaft hole, and the transmission swing arm 62 is configured to be sleeved on the rotating shaft through the shaft hole. This achieves coaxial arrangement of the roller brush 4 and the transmission swing arm 62, ensuring that the movement paths of the roller brush 4 and the transmission swing arm 62 do not interfere with each other, and reduces the space occupied by the body 1. This provides more flexibility for the layout of other components in the body 1 and helps to achieve miniaturization and compact design of the cleaning robot.

[0052] refer to Figure 3The suction port is located on the rear side of the roller brush chamber 2. The suction port is used to draw impurities from the working surface into the machine body 1. The second end 622 of the transmission lever 62 is configured to engage with the top block 61 on the machine body 1. Furthermore, with hinge point 623 as the boundary, the distance from the second end 622 of the transmission lever 62 to hinge point 623 is greater than the distance from the first end 621 of the transmission lever 62 to hinge point 623. Specifically, the first end of the transmission lever 622 extends forward to engage with the baffle assembly 5 located in front of the roller brush chamber 2, and its second end needs to cross the suction port to engage with the top block 61 on the machine body. This results in the distance from the second end 622 of the transmission lever 62 to hinge point 623 being greater than the distance from the first end 621 of the transmission lever 62 to hinge point 623. That is, the lever arm of its second end 622 is greater than that of its first end 621. When the top block 61 moves away from the working surface due to the resistance of the working surface or obstacles, the force applied to the second end 622 may be small, but because the lever arm of the second end 622 is longer, it can generate a larger torque, which can easily drive the transmission swing rod 62 to rotate around the hinge point 623, thereby causing the first end 621 to move downward and push the enclosure assembly 5 to move towards the first position closer to the working surface. In this way, even in the face of triggering scenarios with low resistance, the top block 61 can effectively press down the enclosure assembly 5 with a small force, ensuring that the enclosure assembly 5 can switch between the first and second positions in a timely manner on various working surfaces where it needs to play its role (such as carpets of different thicknesses). This improves the flexibility of cleaning work and adaptability to different working surfaces, while reducing the strength requirements of the top block 61 and the transmission mechanism and extending the service life of the components.

[0053] In one specific embodiment of this disclosure, reference is made to Figure 1 , Figure 2 The machine body 1 is provided with a mounting groove and a brush cavity 21 located within the mounting groove and having a brush cavity 2. The mounting groove can be a recessed structure, and the shape of its inner wall can match the surface shape of the brush cavity 21. A gap 22 is formed between the brush cavity 2 and the mounting groove. At least a portion of the enclosure assembly 5 is configured to be located within the gap 22. When the enclosure assembly 5 moves to the first position, the enclosure assembly 5 can extend fully or partially beyond the gap 22; when the enclosure assembly 5 moves to the second position, the enclosure assembly 5 can retract fully or partially to the outside of the gap 22. The gap 22 can provide limitation and protection for the enclosure assembly 5.

[0054] Considering that if the force-bearing end of the transmission mechanism is directly placed at the end of the transmission lever 62, the installation position of the top block 61 may overlap with the range of motion or structural space of the drive wheel, causing mechanical interference between the two when the robot moves or the top block 61 moves, affecting the normal operation of the entire machine. Therefore, referring to Figure 5 , Figure 6The transmission mechanism also includes a first link 63 and a second link 64 respectively hinged to the body 1. The first link 63 and the second link 64 can be arranged on any one or both inner sides of the body 1 to avoid friction or jamming with the drive wheel or other components of the body 1.

[0055] The two ends of the first link 63 and the second link 64 are respectively referred to as the force-applying end and the force-receiving end; wherein, the force-applying end of the first link 63 is engaged with the second end 622 of the transmission swing rod 62, the force-receiving end of the first link 63 is engaged with the force-applying end of the second link 64, and the force-receiving end of the second link 64 is engaged with the top block 61. When the top block 61 moves away from the working surface due to external forces from the working surface or obstacles, its driving force is first transmitted to the receiving end of the second link 64, causing the receiving end of the second link 64 to rotate upward and the applying end of the second link 64 to rotate downward. Since the applying end of the second link 64 cooperates with the receiving end of the first link 63, the rotation of the second link 64 will pull the receiving end of the first link 63 to move downward. Consequently, the applying end of the first link 63 will move upward and push the second end 622 of the transmission swing rod 62 upward, causing the first end 621 of the transmission swing rod 62 to move closer to the working surface, ultimately moving the enclosure assembly 5 down to the first position. Based on this, the interference movement between the transmission swing rod 62 and the drive wheel and other components is solved, and the switching between the first and second positions of the enclosure assembly 5 is realized through the transmission of the two links.

[0056] Furthermore, to prevent the transmission lever 62 from interfering with components such as the robot's suction port, its installation position is usually required to be close to the two side edges of the body 1. By setting up a linkage mechanism consisting of the first link 63 and the second link 64, the top block 61 can be positioned close to the middle of the body 1, avoiding interference between the top block 61 and other components, and improving the perception and trigger sensitivity of obstacles in the lower central area of ​​the body 1.

[0057] Further, refer to Figure 5 , Figure 6 The first link 63 and the second link 64 extend along a direction perpendicular to the transmission swing rod 62 and are configured to be distributed sequentially in a direction perpendicular to the transmission swing rod 62. On the one hand, this can avoid interference between the motion trajectories of the two links. On the other hand, the perpendicular distribution of the two links to the transmission swing rod 62 can improve the force transmission efficiency and reduce energy loss.

[0058] Since the lever arm length of the second end 622 of the transmission swing rod 62 is greater than that of the first end 621, there may be insufficient displacement of the first end 621, which may cause the enclosure assembly 5 to fail to effectively contact or press into the carpet fibers. Therefore, in this embodiment, the length of the first link 63 and / or the second link 64 is less than the length of the transmission swing rod 62. When the top block 61 moves upward, the smaller first link 63 and / or the second link 64, due to their shorter stroke, can compensate for the problem of excessive displacement of the second end of the transmission swing rod 62, ensuring that the enclosure assembly 5 obtains a sufficiently large displacement.

[0059] In one specific embodiment of this disclosure, such as Figure 5 As shown, there are two transmission mechanisms, symmetrically distributed and connected to both ends of the enclosure assembly 5. Specifically, the core components of the cleaning robot, such as the body 1, roller brush 4, and drive wheels, are typically symmetrically distributed along the central axis to ensure balance and stability during movement. The enclosure assembly 5, as a long strip structure covering the front of the roller brush cavity 2, usually matches the length of the roller brush 4 to cover the entire cleaning width. If driven by only one side of the transmission mechanism, uneven force at both ends can easily cause tilting, resulting in an unbalanced distribution of contact pressure with the work surface and creating cleaning blind spots. By symmetrically distributing the two transmission mechanisms along the central axis of the body 1, a balanced driving force can be generated on the enclosure assembly 5 from both ends, ensuring that it maintains a horizontal posture during movement, avoiding tilting or jamming, and laying the foundation for uniform contact with the work surface. The force-bearing ends of the two transmission mechanisms are configured to cooperate with the same top block 61. When the top block 61 moves away from the working surface due to external force, the driving force it exerts on the two transmission mechanisms is equal in magnitude and consistent in direction, causing the two transmission mechanisms to move synchronously along a symmetrical trajectory, ensuring the uniformity and consistency of the cleaning effect.

[0060] refer to Figure 1 , Figure 3 In one specific embodiment of this disclosure, an elastic device 7 is provided between the transmission mechanism and the machine body 1, or between the enclosure assembly 5 and the machine body 1. The elastic device 7 is configured to move the enclosure assembly 5 to a second position after the external force on the transmission mechanism is removed. Specifically, the transmission mechanism will displace relative to the machine body 1 under the action of an external force, simultaneously compressing or stretching the elastic device 7, thereby causing the enclosure assembly 5 to move towards a first position closer to the working surface against the force of the elastic device 7; when the external force on the transmission mechanism is removed, the elastic device 7, under the action of its own restoring force, will cause the transmission mechanism to reset, thereby causing the enclosure assembly 5 to move to the second position.

[0061] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this disclosure is not limited to the described order of actions, because according to this disclosure, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this disclosure.

[0062] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0063] The preferred embodiments disclosed above are merely illustrative of this disclosure. The optional embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this disclosure. These embodiments are selected and specifically described in this disclosure to better explain the principles and practical applications of this disclosure, thereby enabling those skilled in the art to better understand and utilize this disclosure. This disclosure is limited only by the claims and their full scope and equivalents.

Claims

1. A cleaning robot, characterized in that, The cleaning robot includes: The machine body (1) is provided with a roller brush cavity (2) for cooperating with the roller brush (4), and the roller brush cavity (2) has an open end (3) facing the working surface. A barrier assembly (5) is disposed adjacent to the roller brush cavity (2); the barrier assembly (5) is connected to the machine body (1) via a transmission mechanism; the barrier assembly (5) is configured to move between a first position and a second position, wherein when in the first position the barrier assembly (5) is configured to have a first distance from the working surface, and when in the second position the barrier assembly (5) is configured to have a second distance from the working surface; wherein the first distance is less than the second distance; The transmission mechanism is configured to drive the enclosure assembly (5) to move toward the first position when subjected to an external force from the working surface or an obstacle.

2. The cleaning robot according to claim 1, characterized in that, The enclosure assembly (5) is located at the open end (3) of the roller brush cavity (2) and is configured to contact the working surface or have a predetermined gap when in the first position.

3. The cleaning robot according to claim 1, characterized in that, The transmission mechanism has a force-receiving end, which is configured to at least partially protrude from the bottom of the body (1) and is configured to cause the transmission mechanism to drive the enclosure assembly (5) to move in the direction of the first position when subjected to external force.

4. The cleaning robot according to claim 3, characterized in that, The transmission mechanism has a top block (61) at the force-receiving end. The top block (61) protrudes at least partially from the bottom of the body (1) and is configured to move away from the working surface when the robot is moving or when it walks to a predetermined position, so that the transmission mechanism drives the enclosure assembly (5) to move in the direction of the first position.

5. The cleaning robot according to claim 4, characterized in that, The sidewalls of the top block (61) have chamfers.

6. The cleaning robot according to claim 4, characterized in that, The transmission mechanism includes a transmission swing rod (62) hinged to the body (1). The two opposite ends of the transmission swing rod (62) are respectively referred to as the first end (621) and the second end (622). The first end (621) of the transmission swing rod (62) is connected to the enclosure assembly (5). The top block (61) is configured to push the second end (622) to move away from the working surface, so that the first end (621) of the transmission swing rod (62) drives the enclosure assembly (5) to move in the direction of the first position.

7. The cleaning robot according to claim 6, characterized in that, The two ends of the roller brush (4) are configured to be rotatably connected to the body (1) via a rotating shaft. The transmission swing rod (62) is provided with a shaft hole, and the transmission swing rod (62) is configured to be sleeved on the rotating shaft through the shaft hole.

8. The cleaning robot according to claim 7, characterized in that, The second end (622) of the transmission swing rod (62) is configured to engage with the top block (61) on the fuselage (1); with the hinge point (623) as the boundary, the distance from the second end (622) of the transmission swing rod (62) to the hinge point (623) is greater than the distance from the first end (621) of the transmission swing rod (62) to the hinge point (623).

9. The cleaning robot according to claim 8, characterized in that, The body (1) is provided with a mounting groove, and a gap (22) is formed between the roller brush cavity (2) and the mounting groove; at least a portion of the enclosure assembly (5) is configured to be located within the gap (22).

10. The cleaning robot according to claim 8, characterized in that, The transmission mechanism further includes a first connecting rod (63) and a second connecting rod (64) respectively hinged to the body (1); the two ends of the first connecting rod (63) and the second connecting rod (64) are respectively referred to as the force-applying end and the force-receiving end; wherein, the force-applying end of the first connecting rod (63) cooperates with the second end of the transmission swing rod (62), the force-receiving end of the first connecting rod (63) cooperates with the force-applying end of the second connecting rod (64), and the force-receiving end of the second connecting rod (64) cooperates with the top block.

11. The cleaning robot according to claim 10, characterized in that, The first link (63) and the second link (64) extend in a direction perpendicular to the transmission lever (62) and are configured to be distributed sequentially in a direction perpendicular to the transmission lever (62).

12. The cleaning robot according to claim 10, characterized in that, The lengths of the first link (63) and / or the second link (64) are less than the length of the transmission swing arm (62).

13. The cleaning robot according to claim 12, characterized in that, There are two transmission mechanisms, which are symmetrically distributed and connected to both ends of the enclosure assembly (5); the force-bearing ends of the two transmission mechanisms are configured to cooperate with the same top block (61).

14. The cleaning robot according to claim 1, characterized in that, An elastic device (7) is provided between the transmission mechanism and the body (1), or between the enclosure assembly (5) and the body (1). The elastic device (7) is configured to move the enclosure assembly (5) to a second position when the external force on the transmission mechanism is removed.

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