Cleaning robot

Abstract

A cleaning robot, comprising a housing (100), a driving mechanism (200), and a cleaning mechanism (300). The driving mechanism (200) and the cleaning mechanism (300) are both provided on the housing (100), and the cleaning mechanism (300) is movably connected to the housing (100). The driving mechanism (200) is connected to the cleaning mechanism (300) for driving the cleaning mechanism (300) to move, so that the cleaning mechanism (300) switches between a first position and a second position. When the cleaning mechanism (300) is located at the first position, the distance between the point farthest from the housing (100) in a cleaning area of the cleaning mechanism (300) and the housing (100) is a first distance (d1). When the cleaning mechanism (300) is located at the second position, the distance between the point farthest from the housing (100) in the cleaning area of the cleaning mechanism (300) and the housing (100) is a second distance (d2). The second distance (d2) is greater than the first distance (d1).

Description

Cleaning robots Technical Field

[0001] This application belongs to the field of smart home appliance technology, specifically relating to a cleaning robot. Background Technology

[0002] Cleaning robots are becoming increasingly common in people's daily lives. Cleaning robots (such as robotic vacuum cleaners) can replace manual cleaning of floors. However, cleaning robots are prone to bumping into walls, furniture, etc. when working. To reduce the damage caused by these collisions to walls, furniture, and the cleaning robot itself, the edges of the cleaning robot's shell are usually rounded.

[0003] However, cleaning robots often encounter corners and cabinet corners during operation. The curved edges of the robot's shell make it difficult for the robot to reach and clean these corners, resulting in blind spots in the cleaning process. Summary of the Invention

[0004] This application discloses a cleaning robot to solve the problem of blind spots in cleaning robots involved in related technologies.

[0005] To address the aforementioned technical problems, this application provides the following technical solution.

[0006] This application discloses a cleaning robot, which includes a housing, a drive mechanism, and a cleaning mechanism. Both the drive mechanism and the cleaning mechanism are located within the housing, and the cleaning mechanism is movably connected to the housing. The drive mechanism is connected to the cleaning mechanism and is used to drive the cleaning mechanism to move, allowing the cleaning mechanism to switch between a first position and a second position. When the cleaning mechanism is in the first position, the distance between the point farthest from the housing in the cleaning area of ​​the cleaning mechanism and the housing is a first distance. When the cleaning mechanism is in the second position, the distance between the point farthest from the housing in the cleaning area of ​​the cleaning mechanism and the housing is a second distance. The second distance is greater than the first distance.

[0007] The cleaning robot disclosed in this application improves the structure of cleaning robots in related technologies by setting a cleaning mechanism movably connected to the housing and a drive mechanism connected to the cleaning mechanism. This allows the drive mechanism to drive the cleaning mechanism to move, enabling it to switch between a first position and a second position. When the cleaning mechanism is in the first position, the distance between the farthest point in the cleaning area of ​​the cleaning mechanism and the housing is a first distance. Similarly, when the cleaning mechanism is in the second position, the distance between the farthest point in the cleaning area of ​​the cleaning mechanism and the housing is a second distance. Since the second distance is greater than the first distance, the cleaning area of ​​the cleaning mechanism can be extended by switching its position. This allows for the cleaning of corners such as wall corners and cabinet corners by switching the cleaning mechanism to the second position, thus achieving cleaning of these corner areas and alleviating the problem of cleaning blind spots in cleaning robots. Attached Figure Description

[0008] Figure 1 is a schematic diagram of the cleaning robot disclosed in the embodiment of this application when the cleaning mechanism is in the first position;

[0009] Figure 2 is a schematic diagram of the cleaning robot disclosed in the embodiment of this application when the cleaning mechanism is in the second position;

[0010] Figure 3 is a partial exploded view of the cleaning robot disclosed in an embodiment of this application;

[0011] Figure 4 is a partial structural schematic diagram of the cleaning robot disclosed in the embodiment of this application when the cleaning mechanism is in the first position;

[0012] Figure 5 is a cross-sectional view of Figure 4;

[0013] Figure 6 is a partial structural schematic diagram of the cleaning robot disclosed in this application when the cleaning mechanism is in the second position;

[0014] Figure 7 is a partial exploded view of Figure 6;

[0015] Figure 8 is a schematic diagram of the process by which the cleaning robot disclosed in the embodiments of this application switches to the first position when the cleaning mechanism in the second position is impacted by an external force.

[0016] Explanation of reference numerals in the attached figures:

[0017] 100 - Shell, 110 - First strip hole, 120 - Second strip hole

[0018] 200-Drive mechanism, 210-Power source, 220-First transmission component, 221-First meshing tooth,

[0019] 300 - Cleaning mechanism, 310 - Cleaning component, 320 - Second transmission component, 321 - Second meshing tooth, 330 - Limiting protrusion,

[0020] 400-elastic component

[0021] 500 - Mounting bracket, 510 - Mounting hole, 520 - First mounting slot, 530 - Second mounting slot, 531 - Slot, 532 - Mounting protrusion

[0022] 600 - Fixing cover, 610 - Positioning hole

[0023] 710 - Connecting shaft, 720 - Connector, 730 - Gasket. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] Please refer to Figures 1 to 8. This application discloses a cleaning robot, which includes a housing 100, a drive mechanism 200, and a cleaning mechanism 300.

[0028] The housing 100 is the basic component of the cleaning robot, providing mounting positions for other components of the cleaning robot, including the drive mechanism 200 and the cleaning mechanism 300. Furthermore, the housing 100 also forms functional spaces or structures, such as the first slot 110 and the second slot 120 described later.

[0029] The drive mechanism 200 is the core component that drives the cleaning mechanism 300 in the cleaning robot, and the cleaning mechanism 300 is the core component that realizes the cleaning function in the cleaning robot. The cleaning mechanism 300 is movably connected to the housing 100 so that the cleaning mechanism 300 can move relative to the housing 100. The drive mechanism 200 is connected to the cleaning mechanism 300 and is used to drive the cleaning mechanism 300 to move so that the cleaning mechanism 300 switches between a first position and a second position.

[0030] During operation, as shown in Figures 1, 4, and 5, when the cleaning mechanism 300 is in the first position, the distance between the point farthest from the housing 100 in the cleaning area of ​​the cleaning mechanism 300 and the housing 100 is the first distance d1. As shown in Figures 2, 6, and 7, when the cleaning mechanism 300 is in the second position, the distance between the point farthest from the housing 100 in the cleaning area of ​​the cleaning mechanism 300 and the housing 100 is the second distance d2. The second distance is greater than the first distance, so that when the cleaning mechanism 300 is in the second position, the distance between the point farthest from the housing 100 in the cleaning area is greater than the distance between the housing 100 and the cleaning mechanism 300, thereby extending the cleaning area of ​​the cleaning mechanism 300 and expanding the cleaning range of the cleaning robot, thus enabling the cleaning robot to clean corner areas such as wall corners and cabinet corners.

[0031] Optionally, the cleaning component 310 described later is rotatably disposed on the second transmission member 320 described later. The cleaning component 310 rotates relative to the second transmission member 320 to form a cleaning area; more precisely, the cleaning area is essentially a circular area. During the cleaning robot's movement, the cleaning component 310 rotates itself relative to the second transmission member 320, thereby achieving cleaning. It should be noted that the rotation axis of the cleaning component 310 does not coincide with the rotation axis of the second transmission member 320 or the rotation axis of the cleaning mechanism 300. Furthermore, the cleaning component 310 is driven by a drive member outside the drive mechanism 200 to achieve rotation. The cleaning component 310 may include a strip-shaped cleaning brush or a ring-shaped cleaning brush. If the cleaning component 310 includes a strip-shaped cleaning brush, multiple strip-shaped cleaning brushes may be used to improve cleaning efficiency.

[0032] The cleaning robot disclosed in this application improves the structure of cleaning robots in related technologies by setting a cleaning mechanism 300 movably connected to the housing 100 and a drive mechanism 200 connected to the cleaning mechanism 300. This allows the drive mechanism 200 to drive the cleaning mechanism 300 to move, enabling it to switch between a first position and a second position. When the cleaning mechanism 300 is in the first position, the distance between the farthest point in its cleaning area from the housing 100 and the housing 100 is a first distance. When the cleaning mechanism 300 is in the second position, the distance between the farthest point in its cleaning area from the housing 100 and the housing is a second distance, which is greater than the first distance. This allows the cleaning area of ​​the cleaning mechanism 300 to be extended by switching its position. This is particularly useful when dealing with corners such as wall corners and cabinet corners, as the cleaning mechanism 300 can be moved to the second position to extend its cleaning area and clean these corner areas, thus alleviating the problem of cleaning blind spots in cleaning robots.

[0033] In some embodiments, the cleaning mechanism 300 can be rotatably connected to the housing 100 so that the cleaning mechanism 300 can rotate relative to the housing 100. The drive mechanism 200 can be used to drive the cleaning mechanism 300 to rotate so that the cleaning mechanism 300 can switch between a first position and a second position. In this case, the drive mechanism 200 can be a gear transmission mechanism, a belt transmission mechanism, a stepper motor, or a servo motor.

[0034] In some embodiments, the drive mechanism 200 can drive the cleaning mechanism 300 to move linearly, thereby enabling the cleaning mechanism 300 to switch between a first position and a second position. In some embodiments, the drive mechanism 200 can drive the cleaning mechanism 300 to extend or retract. In this case, the drive mechanism 200 can be a hydraulic cylinder, a pneumatic cylinder, a linear motor, or a rack and pinion mechanism. It should be emphasized that the embodiments of this application do not limit the specific structure of the drive mechanism 200, and correspondingly, do not limit the specific connection structure between the drive mechanism 200 and the cleaning mechanism 300, nor limit the specific movement mode of the cleaning mechanism 300 when switching between the first position and the second position.

[0035] In some embodiments, the drive mechanism 200 may include a connected power source 210 and a first transmission member 220. The power source 210 may be disposed in the housing 100 and can provide power to the first transmission member 220 to drive the first transmission member 220 to rotate. The cleaning mechanism 300 may include a connected cleaning component 310 and a second transmission member 320. The second transmission member 320 may be disposed in the housing 100. The first transmission member 220 and the second transmission member 320 can be driveably connected so that the first transmission member 220 can drive the second transmission member 320 to rotate, thereby allowing the first transmission member 220 to drive the cleaning component 310 to rotate together around the rotation axis of the second transmission member 320, so that the cleaning mechanism 300 can switch between a first position and a second position, wherein the rotation axis of the second transmission member 320 coincides with the rotation axis of the cleaning mechanism 300. Simultaneously, in the working state, the cleaning component 310 also rotates around its own rotation axis. In some embodiments, the power source 210 may be a motor.

[0036] In one embodiment, the first transmission member 220 may include a first meshing tooth 221, and the second transmission member 320 may include a second meshing tooth 321. The first transmission member 220 and the second transmission member 320 can be connected by the meshing of the first meshing tooth 221 and the second meshing tooth 321. In some embodiments, the first transmission member 220 and the second transmission member 320 may be a first gear and a second gear, respectively. In some embodiments, in order to save manufacturing costs and to facilitate the miniaturization of the cleaning robot, the second gear may be a sector gear.

[0037] In another embodiment, the first transmission member 220 may be a first pulley, the second transmission member 320 may be a second pulley, and the cleaning robot may also include a transmission belt, through which the first pulley and the second pulley can be connected for transmission.

[0038] In another embodiment, the first transmission member 220 may be a first sprocket, the second transmission member 320 may be a second sprocket, and the cleaning robot may also include a transmission chain, through which the first sprocket and the second sprocket can be connected for transmission.

[0039] In the embodiments of this application, the drive mechanism 200 and the housing 100 can be movably connected or fixedly connected. In the embodiment where the drive mechanism 200 and the housing 100 are movably connected or fixedly connected, the drive mechanism 200 can drive the cleaning mechanism 300 to rotate relative to the housing 100 so that the cleaning mechanism 300 can switch normally between the first position and the second position.

[0040] In some embodiments, the drive mechanism 200 may be movably disposed on the housing 100, and the drive mechanism 200 may drive the cleaning mechanism 300 to rotate around the rotation axis of the cleaning mechanism 300 along a first direction. Specifically, when the cleaning mechanism 300 is in a first position, the drive mechanism 200 no longer drives the cleaning mechanism 300 to rotate (e.g., the drive mechanism 200 is closed), meaning that in this case, the drive connection between the drive mechanism 200 and the cleaning mechanism 300 allows the cleaning mechanism 300 to remain in the first position. Similarly, when the cleaning mechanism 300 is in a second position, the drive mechanism 200 no longer drives the cleaning mechanism 300 to rotate (e.g., the drive mechanism 200 is closed), meaning that in this case, the drive connection between the drive mechanism 200 and the cleaning mechanism 300 allows the cleaning mechanism 300 to remain in the second position. Therefore, the drive mechanism 200 can be a drive mechanism with a self-locking function. It should be noted that the cleaning component 310 is driven by a separately provided drive member, and its rotation is not affected by the self-locking of the drive mechanism.

[0041] Optionally, when the power source 210 is a motor, the first transmission member 220 includes a first meshing tooth 221, and the second transmission member 320 includes a second meshing tooth 321, when the cleaning mechanism 300 is running in the first position and the second position, the motor can be locked, so as not to drive the first transmission member 220 to rotate, thereby preventing the first transmission member 220 from driving the second transmission member 320 to rotate, and also preventing the second transmission member 320 from driving the motor to rotate through the first transmission member 220, so that the cleaning mechanism 300 can be maintained in the first position or the second position.

[0042] When the cleaning mechanism 300 reaches the second position, it extends into the housing 100, making it susceptible to impacts during the robot's movement. Upon impact, the cleaning mechanism 300 switches back to the first position. As shown in Figure 8, when the cleaning mechanism 300 in the second position is impacted and switches back to the first position, the drive connection between the drive mechanism 200 and the cleaning mechanism 300 allows the cleaning mechanism 300 to rotate along a second direction around its rotation axis. This avoids objects impacting the cleaning mechanism 300 and prevents continuous impacts that could damage it. The first direction can be opposite to the second direction.

[0043] Furthermore, the housing 100 may have a first strip-shaped hole 110, and the drive mechanism 200 may slide within the first strip-shaped hole 110, thereby providing movement space for the drive mechanism 200 when it rotates around the rotation axis of the cleaning mechanism 300, thus avoiding obstruction of the drive mechanism 200's movement. Simultaneously, the drive mechanism 200 may be respectively limited by engaging with the first end and the second end of the first strip-shaped hole 110 to restrict the angle of rotation of the drive mechanism 200 around the rotation axis of the cleaning mechanism 300.

[0044] During operation, when the cleaning mechanism 300 in the second position is impacted by an external force and switches to the first position, the cleaning mechanism 300 can drive the drive mechanism 200 to rotate around the rotation axis of the cleaning mechanism 300 along the second direction, so that the drive mechanism 200 slides from the first end of the first strip hole 110 to the second end of the first strip hole 110. That is, the second direction can be the direction from the first end of the first strip hole 110 toward the second end of the first strip hole 110. Correspondingly, the first direction can be the direction from the second end of the first strip hole 110 toward the first end of the first strip hole 110.

[0045] The first strip-shaped hole 110 can also be a strip-shaped hole with a sufficiently large internal space, as long as it does not obstruct the sliding of the drive mechanism 200. The specific shape of the first strip-shaped hole 110 is not limited in this embodiment. In one embodiment, the first strip-shaped hole 110 can be a first arc-shaped hole, and the center of the first arc-shaped hole can be on the rotation axis of the cleaning mechanism 300. This allows the drive mechanism 200 to slide more smoothly along the first arc-shaped hole when the cleaning mechanism 300 drives the drive mechanism 200 to rotate around the rotation axis of the cleaning mechanism 300 in the second direction. The first arc-shaped hole can better guide the drive mechanism 200, thereby improving the stability of the movement of the drive mechanism 200.

[0046] To improve the stability of the drive mechanism 200, the cleaning robot may further include an elastic element 400. The first end of the elastic element 400 can be connected to the housing 100, and the second end can be connected to the drive mechanism 200. This allows the drive mechanism 200 to elastically abut against the first end of the first slot 110, so that when the cleaning mechanism 300 is in the first or second position and is not disturbed by external forces, the elastic element 400 can maintain the drive mechanism 200 at the first end of the first slot 110, thereby ensuring that the drive mechanism 200 is always in a position capable of driving the cleaning mechanism 300 to switch positions. The elastic element 400 can be a spring (e.g., a torsion spring) or a rubber elastic element; the embodiments of this application do not limit the specific type of the elastic element 400.

[0047] When the cleaning mechanism 300 in the second position is impacted by an external force and switches to the first position, the elastic element 400 can deform, thereby buffering the impact force on the cleaning mechanism 300. At the same time, the restoration of the elastic element 400 can allow the drive mechanism 200 to reset to the first end of the first strip hole 110, thereby realizing the automatic reset of the drive mechanism 200, which is beneficial to improving the automation level of the cleaning robot and thus improving the working efficiency of the cleaning robot.

[0048] During operation, when the cleaning mechanism 300 is in either the first or second position and is not subject to external interference, the elastic element 400 can maintain the drive mechanism 200 at the first end of the first slot 110. When the cleaning mechanism 300 in the second position is impacted by an external force, it will switch to the first position. This causes the drive mechanism 200 to slide from the first end of the first slot 110 to the second end, thereby deforming the elastic element 400. After the impact, the elastic element 400 recovers, and under the restoring force of the elastic element 400, it can drive the drive mechanism 200 back to the first end of the first slot 110.

[0049] In some embodiments, the cleaning robot may also include a manual operation unit, which may be connected to the drive mechanism 200, so that the drive mechanism 200 can be manually reset to the first end of the first strip hole 110 through the manual operation unit. This structure is relatively simple and easy to implement, which helps to reduce costs.

[0050] In this embodiment, the cleaning robot may further include a mounting frame 500, which may have a mounting hole 510, a first mounting groove 520, and a second mounting groove 530. A drive mechanism 200 may be fixed in the mounting hole 510. A portion of the cleaning mechanism 300 is rotatably disposed in the first mounting groove 520, which communicates with the mounting hole 510, allowing the drive mechanism 200 to be transmitted to the cleaning mechanism 300. An elastic member 400 may be disposed in the second mounting groove 530, and its second end may be connected to the mounting frame 500, indirectly connecting the drive mechanism 200 through the mounting frame 500. The mounting frame 500 is rotatably disposed on the housing 100, and its rotation axis may coincide with the rotation axis of the cleaning mechanism 300, allowing the drive mechanism 200 to rotate around the rotation axis of the cleaning mechanism 300.

[0051] During operation, since the first end of the elastic element 400 is connected to the housing 100, and the second end of the elastic element 400 is indirectly connected to the drive mechanism 200 through the mounting bracket 500, the elastic element 400 can maintain the drive mechanism 200 at the first end of the first slot 110 through the mounting bracket 500 when the cleaning mechanism 300 is in the first or second position and is not disturbed by external forces. When the cleaning mechanism 300 in the second position is impacted by an external force and switches to the first position, the elastic element 400 deforms, and when the elastic element 400 returns to its shape, the drive mechanism 200 can be reset to the first end of the first slot 110 through the mounting bracket 500.

[0052] When the cleaning mechanism 300 in the second position is impacted by an external force, it switches to the first position. This causes the drive mechanism 200 to slide from the first end of the first slot 110 to the second end of the first slot 110, thereby deforming the elastic element 400. After the impact, the elastic element 400 returns to its shape. Under the restoring force of the elastic element 400, the elastic element 400 can drive the drive mechanism 200 back to the first end of the first slot 110 via the mounting bracket 500.

[0053] In some embodiments, the cleaning robot may further include a fixing cover 600, which may cover the opening of the second mounting groove 530 and be fixedly connected to the housing 100. The sidewall of the fixing cover 600 opposite to the opening of the second mounting groove 530 may have a positioning hole 610, and the first end of the elastic member 400 may be disposed in the positioning hole 610 so that the first end of the elastic member 400 is connected to the fixing cover 600, thereby indirectly connecting the first end of the elastic member 400 to the housing 100 through the fixing cover 600. The sidewall of the second mounting groove 530 may have a slot 531, and the second end of the elastic member 400 may be disposed in the slot 531 so that the second end of the elastic member 400 is connected to the mounting bracket 500, thereby indirectly connecting the drive mechanism 200 through the mounting bracket 500. In some embodiments, the first end of the elastic element 400 can also be directly fixed to the housing 100 by welding, bonding or other methods, and the second end of the elastic element 400 can be connected to the mounting bracket 500 by welding, bonding or other methods. This application embodiment does not limit this.

[0054] During operation, since the first end of the elastic element 400 is indirectly connected to the housing 100 through the fixing cover 600, and the second end of the elastic element 400 is indirectly connected to the drive mechanism 200 through the mounting bracket 500, the elastic element 400 can maintain the drive mechanism 200 at the first end of the first slot 110 through the mounting bracket 500 when the cleaning mechanism 300 is in the first or second position and is not disturbed by external forces. When the cleaning mechanism 300 in the second position is impacted by an external force and switches to the first position, the elastic element 400 deforms and restores its shape, thereby enabling the drive mechanism 200 to return to the first end of the first slot 110 through the mounting bracket 500.

[0055] When the cleaning mechanism 300 in the second position is impacted by an external force, it switches to the first position. This causes the drive mechanism 200 to slide from the first end of the first slot 110 to the second end of the first slot 110, thereby deforming the elastic element 400. After the impact, the elastic element 400 returns to its original position. Under the action of the restoring force of the elastic element 400, the elastic element 400 can drive the drive mechanism 200 to return to the first end of the first slot 110.

[0056] To improve the reliability of the elastic element 400, the bottom wall of the second mounting groove 530 may have a mounting protrusion 532. The elastic element 400 may be fitted onto the mounting protrusion 532 to prevent the elastic element 400 from easily shifting when compressed, making it difficult to stably drive the drive mechanism 200 back to the first end of the first strip hole 110.

[0057] In some embodiments, the cleaning robot may further include a connecting shaft 710 and a connector 720. The connecting shaft 710 can sequentially pass through a first mounting groove 520, a second transmission member 320 in the first mounting groove 520, the bottom wall of the second mounting groove 530, and a mounting protrusion 532, and is connected to the connector 720 passing through the fixing cover 600. This allows the mounting frame 500 to rotate around the central axis of the connecting shaft 710, enabling the drive mechanism 200 to rotate around the central axis of the connecting shaft 710 via the mounting frame 500, and enabling the cleaning mechanism 300 to rotate around the central axis of the connecting shaft 710. The central axis of the connecting shaft 710 coincides with the rotation axis of the cleaning mechanism 300, thereby allowing the drive mechanism 200 to rotate around the rotation axis of the cleaning mechanism 300. In some embodiments, the connector 720 may be a screw or a bolt.

[0058] To prevent loosening of the connection between the connecting shaft 710 and the connector 720, the cleaning robot may further include a gasket 730. The connector 720 can pass through the gasket 730, and the gasket 730 can be disposed between the connector 720 and the fixing cover 600, thereby making the connection between the connecting shaft 710 and the connector 720 more reliable. To further improve the reliability of the connection between the connecting shaft 710 and the connector 720, there may be multiple gaskets 730. In one embodiment, there may be two gaskets 730, which can effectively reduce the risk of loosening between the connecting shaft 710 and the connector 720 and avoid wasting gaskets 730, thus saving costs.

[0059] To improve the stability of the cleaning mechanism 300 when switching between the first position and the second position, the cleaning mechanism 300 may have a limiting protrusion 330, and the housing 100 may have a second strip hole 120. The limiting protrusion 330 and the second strip hole 120 can slide together, so that the limiting protrusion 330 can slide in the second strip hole 120 as the cleaning mechanism 300 switches between the first position and the second position, thereby allowing the limiting protrusion 330 to stably switch to the first position or the second position under the guidance of the second strip hole 120.

[0060] When the cleaning mechanism 300 is in the first position, the limiting protrusion 330 and the first end of the second strip hole 120 can be limited and engaged. When the cleaning mechanism 300 is in the second position, the limiting protrusion 330 and the second end of the second strip hole 120 can be limited and engaged. This can limit the angle of rotation of the cleaning mechanism 300, prevent the cleaning mechanism 300 from rotating excessively and making it difficult to rotate accurately to the first or second position, and enable the cleaning mechanism 300 to rotate stably to the first or second position.

[0061] The second strip-shaped hole 120 can be a strip-shaped hole with a sufficiently large internal space, as long as it does not obstruct the sliding of the limiting protrusion 330. The specific shape of the second strip-shaped hole 120 is not limited in this embodiment. In some embodiments, the second strip-shaped hole 120 can be a second arc-shaped hole, and the center of the second arc-shaped hole can be on the rotation axis of the cleaning mechanism 300, so that the cleaning mechanism 300 can slide more smoothly along the second arc-shaped hole when rotating, thereby further improving the stability of the rotation of the cleaning mechanism 300.

[0062] In this application example, the cleaning robot can be a sweeping robot or a washing robot, etc., and the embodiments of this application do not limit the specific type of cleaning robot.

[0063] When the cleaning robot moves to a corner or other location, it detects that it is in such a location through its sensors. It then sends a command to the drive mechanism 200, which in turn drives the cleaning mechanism 300 to a second position to effectively clean corners and other hard-to-reach areas.

[0064] The above embodiments of this application focus on describing the differences between the various embodiments. As long as the different optimization features of the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be described in detail here.

[0065] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A cleaning robot, comprising a housing (100), a drive mechanism (200), and a cleaning mechanism (300); The driving mechanism (200) and the cleaning mechanism (300) are both disposed in the housing (100), and the cleaning mechanism (300) is movably connected to the housing (100). The driving mechanism (200) is connected to the cleaning mechanism (300) and is used to drive the cleaning mechanism (300) to move so that the cleaning mechanism (300) switches between a first position and a second position. When the cleaning mechanism (300) is in the first position, the distance between the point farthest from the housing (100) in the cleaning area of ​​the cleaning mechanism (300) and the housing (100) is the first distance (d1); When the cleaning mechanism (300) is in the second position, the distance between the point farthest from the housing (100) in the cleaning area of ​​the cleaning mechanism (300) and the housing (100) is the second distance (d2); The second distance is greater than the first distance.

2. The cleaning robot according to claim 1, characterized in that, The cleaning mechanism (300) is rotatably connected to the housing (100), and the driving mechanism (200) is used to drive the cleaning mechanism (300) to rotate so that the cleaning mechanism (300) switches between the first position and the second position.

3. The cleaning robot according to claim 2, characterized in that, The drive mechanism (200) includes a connected power source (210) and a first transmission member (220), and the cleaning mechanism (300) includes a connected cleaning component (310) and a second transmission member (320). The power source (210) and the second transmission member (320) are both located in the housing (100), and the first transmission member (220) and the second transmission member (320) are connected in a transmission manner. The power source (210) is used to drive the first transmission member (220) to rotate, and the first transmission member (220) is used to drive the cleaning component (310) to rotate around the rotation axis of the second transmission member (320) through the second transmission member (320), so that the cleaning mechanism (300) switches between the first position and the second position.

4. The cleaning robot according to claim 2 or 3, characterized in that, The drive mechanism (200) is movably disposed on the housing (100), and the drive mechanism (200) drives the cleaning mechanism (300) to rotate along a first direction around the rotation axis of the cleaning mechanism (300) to the second position; When the cleaning mechanism (300) in the second position is impacted by an external force and switches to the first position, the cleaning mechanism (300) drives the driving mechanism (200) to rotate around the rotation axis of the cleaning mechanism (300) along a second direction, the first direction being opposite to the second direction.

5. The cleaning robot according to claim 4, characterized in that, The housing (100) has a first strip hole (110), the driving mechanism (200) slides with the first strip hole (110), and is respectively limited to the first end and the second end of the first strip hole (110); When the cleaning mechanism (300) in the second position is impacted by an external force and switches to the first position, the cleaning mechanism (300) drives the driving mechanism (200) to rotate around the rotation axis of the cleaning mechanism (300) along the second direction, so that the driving mechanism (200) slides from the first end of the first strip hole (110) to the second end of the first strip hole (110).

6. The cleaning robot according to claim 5, characterized in that, The cleaning robot also includes an elastic element (400), the first end of which is connected to the housing (100), and the second end of which is connected to the drive mechanism (200) to allow the drive mechanism (200) to elastically abut against the first end of the first strip hole (110). When the cleaning mechanism (300) in the second position is impacted by an external force and switches to the first position, the elastic element (400) deforms, and the restoring energy of the elastic element (400) drives the drive mechanism (200) to reset to the first end of the first strip hole (110).

7. The cleaning robot according to claim 6, characterized in that, The cleaning robot also includes a mounting frame (500) having a mounting hole (510), a first mounting slot (520), and a second mounting slot (530); The drive mechanism (200) is fixed in the mounting hole (510), and a portion of the cleaning mechanism (300) is rotatably disposed in the first mounting groove (520). The first mounting groove (520) communicates with the mounting hole (510) so that the drive mechanism (200) and the cleaning mechanism (300) are connected in a transmission manner. The elastic element (400) is disposed in the second mounting groove (530), and the second end of the elastic element (400) is connected to the mounting bracket (500). The mounting bracket (500) is rotatably disposed in the housing (100), and the rotation axis of the mounting bracket (500) coincides with the rotation axis of the cleaning mechanism (300).

8. The cleaning robot according to claim 7, characterized in that, The cleaning robot also includes a fixing cover (600), which is fitted over the opening of the second mounting groove (530) and fixedly connected to the housing (100). The side wall of the fixing cover (600) opposite to the opening of the second mounting groove (530) has a positioning hole (610). The first end of the elastic member (400) is disposed in the positioning hole (610). The side wall of the second mounting groove (530) has a slot (531), and the second end of the elastic member (400) is disposed in the slot (531).

9. The cleaning robot according to claim 8, characterized in that, The bottom wall of the second mounting groove (530) has a mounting protrusion (532), and the elastic element (400) is sleeved on the mounting protrusion (532).

10. The cleaning robot according to any one of claims 3 to 9, characterized in that, The cleaning component (310) is rotatably disposed on the second transmission member (320), and the cleaning area is formed by the rotation of the cleaning component (310) relative to the second transmission member (320).

11. The cleaning robot according to any one of claims 1 to 10, characterized in that, The cleaning mechanism (300) has a limiting protrusion (330), and the housing (100) has a second strip hole (120), wherein the limiting protrusion (330) slides in cooperation with the second strip hole (120); When the cleaning mechanism (300) is in the first position, the limiting protrusion (330) is in limiting engagement with the first end of the second strip hole (120), and when the cleaning mechanism (300) is in the second position, the limiting protrusion (330) is in limiting engagement with the second end of the second strip hole (120).

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