Cleaning robot

Abstract

The present application is applicable to the field of robots, and discloses a cleaning robot, comprising a bottom shell, wheel covers, two track wheels, and tracks, wherein side edges of the bottom shell are each provided with a side shell; each wheel cover and the corresponding side shell define a mounting cavity; the track wheels are respectively mounted in the mounting cavities; the tracks are respectively sleeved on the two track wheels; the tracks are respectively provided with first protruding portions extending towards the corresponding side shells, at least the top and the bottom of each side shell are provided with second protruding portions extending towards the corresponding wheel cover, the projections of each first protruding portion and the corresponding second protruding portion at least partially overlap with each other, a first preset gap is formed between the first protruding portion and the corresponding second protruding portion, and the first protruding portion is located on the side of the corresponding second protruding portion away from the corresponding mounting cavity. The cleaning robot in the present application can effectively prevent foreign matters from entering the mounting cavities, thereby preventing the foreign matters from affecting the normal operation of the track wheels and related components thereof, prolonging the overall service life of the cleaning robot, and improving the operation efficiency and stability of the cleaning robot.

Description

Cleaning robots

[0001] This application claims priority to Chinese Patent Application No. 202423320850.8, filed with the Chinese Patent Office on December 31, 2024, entitled "Cleaning Robot", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of robotics, and more particularly to a cleaning robot. Background Technology

[0003] Existing pool cleaning robots typically use a tracked drive system, where the tracks move by contacting the ground to clean the bottom and sidewalls of the pool. However, during the cleaning process, stones, debris, sand, and other impurities easily adhere to the tracks when they contact the ground. As the tracks move forward, these debris rotates to the top, and some may enter the side of the robot through gaps between the tracks and the main body, particularly into the cavity where the track wheels are installed. Over long-term use, this accumulation of debris can affect the normal operation of the track wheels and related components, reducing the robot's lifespan and cleaning efficiency. Summary of the Invention

[0004] The purpose of this application is to provide a cleaning robot that prevents debris from entering the cleaning robot and affecting its operation.

[0005] To achieve the above objectives, this application provides a cleaning robot, comprising:

[0006] A bottom shell, wherein side shells are provided on the sides of the bottom shell;

[0007] A wheel cover, wherein the wheel cover and the side shell are enclosed to form a mounting cavity;

[0008] Two track rollers are installed inside the mounting cavity;

[0009] Tracks, which are fitted onto the two track wheels;

[0010] The track has a first protrusion extending toward the side shell, and the side shell has a second protrusion extending toward the wheel cover. The projections of the first protrusion and the second protrusion in the vertical direction at least partially overlap and there is a first preset gap between them. The first protrusion is located on the side of the second protrusion away from the mounting cavity.

[0011] In the cleaning robot of this application, the second protrusion includes two first straight segments and two first arc segments. The two first arc segments are spaced apart at both ends of the side shell along the traveling direction of the cleaning robot. The two first straight segments are located between the two first arc segments and are correspondingly connected. The two first straight segments and the two first arc segments enclose each other to form an annular second protrusion.

[0012] In the cleaning robot of this application, the two tracked wheels are respectively installed at the two first arc-shaped segments.

[0013] In the cleaning robot of this application, the first pre-set gap between the first protrusion and the second protrusion in the vertical direction is 0.5-1.5mm.

[0014] In the cleaning robot of this application, the track includes a track body, the first protrusion is disposed on the side of the track body near the side shell, the track body extends toward the mounting cavity, and is spaced apart from the second protrusion along the direction from the side shell to the wheel cover.

[0015] In the cleaning robot of this application, the track is provided with a third protrusion extending toward the wheel cover, the wheel cover is provided with a fourth protrusion extending toward the side shell, the projections of the third protrusion and the fourth protrusion in the vertical direction at least partially overlap and there is a second preset gap between them, and the third protrusion is located on the side of the fourth protrusion away from the mounting cavity.

[0016] In the cleaning robot of this application, the fourth protrusion includes two second straight segments and two second arc-shaped segments. The two second arc-shaped segments are spaced apart at both ends of the wheel cover along the traveling direction of the cleaning robot. The two second straight segments are located between the two second arc-shaped segments and are correspondingly connected. The two second straight segments and the two second arc-shaped segments enclose and form an annular fourth protrusion.

[0017] In the cleaning robot of this application, the second preset gap between the third protrusion and the fourth protrusion in the vertical direction is 0.5-1.5mm.

[0018] In the cleaning robot of this application, the track includes a track body, the third protrusion is disposed on the side of the track body near the wheel cover, the track body extends toward the mounting cavity, and is spaced apart from the fourth protrusion along the direction from the side shell to the wheel cover.

[0019] The cleaning robot of this application further includes a guiding and positioning structure, which comprises multiple guide grooves and multiple guide posts, with each guide groove and guide post corresponding to the other. The guide posts pass through the guide grooves. The guiding and positioning structure is located between the side shell and the wheel cover. The multiple guide grooves are located in one of the side shell and the wheel cover, and the multiple guide posts are located in the other of the side shell and the wheel cover; and / or,

[0020] It also includes a snap-fit ​​structure, which includes multiple slots and multiple buckles, with each slot and buckle corresponding to the other. The buckles snap into the slots. The snap-fit ​​structure is located between the side shell and the wheel cover. The multiple slots are located on one of the side shell and the wheel cover, and the multiple buckles are located on the other of the side shell and the wheel cover.

[0021] The cleaning robot provided in this application, through its first and second protrusions, allows the extension direction of the first preset gap to form an angle with the vertical direction. During the cleaning process, debris above the track is less likely to fall into the mounting cavity along the first preset gap. Furthermore, debris below the track is also less likely to be pressed into the mounting cavity along the first preset gap. Therefore, the cleaning robot of this application can effectively prevent debris from entering the mounting cavity, thereby avoiding debris affecting the normal operation of the track wheels and related components, reducing wear on the track wheels and related components, extending the overall service life of the cleaning robot, and improving the working efficiency and stability of the cleaning robot. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the structure of the cleaning robot provided in an embodiment of this application;

[0023] Figure 2 is one of the cross-sectional schematic diagrams of the cleaning robot provided in the embodiments of this application;

[0024] Figure 3 is an enlarged view of point A in Figure 2;

[0025] Figure 4 is an enlarged view of point B in Figure 2;

[0026] Figure 5 is a second cross-sectional schematic diagram of the cleaning robot provided in the embodiments of this application;

[0027] Figure 6 is an enlarged view of point C in Figure 5;

[0028] Figure 7 is an enlarged view of point D in Figure 5;

[0029] Figure 8 is an exploded view of the cleaning robot provided in an embodiment of this application;

[0030] Figure 9 is a schematic diagram of the bottom shell of the cleaning robot provided in an embodiment of this application;

[0031] Figure 10 is a schematic diagram of the wheel cover structure of the cleaning robot provided in an embodiment of this application;

[0032] Figure 11 is a schematic diagram of the track structure of the cleaning robot provided in an embodiment of this application.

[0033] The reference numerals in the accompanying drawings are as follows: 10, bottom shell; 10a, mounting cavity; 11, side shell; 111, second protrusion; 1111, first straight segment; 1112, first arc segment; 112, track wheel mounting part; 20, wheel cover; 21, fourth protrusion; 211, second straight segment; 212, second arc segment; 30, track wheel; 31, annular groove; 40, track; 41, first protrusion; 411, first preset gap; 42, third protrusion; 421, second preset gap; 43, track body; 431, protrusion; 61, guide groove; 62, guide post; 71, slot; 72, buckle; 90, upper shell. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0036] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0037] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0038] Pool cleaning robots typically employ a tracked drive system, where the tracks move by contacting the ground, enabling the robot to move and clean within the pool. However, during the cleaning process, existing pool cleaning robots are prone to accumulating debris such as stones, fragments, and sand on the tracks. As the tracks move forward, these debris rotates to the top, and some may enter the side of the main body through gaps between the tracks and the robot, particularly into the cavity where the track wheels are installed. Over long-term use, this accumulation of debris can affect the normal operation of the track wheels and related components, reducing the robot's lifespan and cleaning efficiency.

[0039] Therefore, this application provides a cleaning robot that can effectively prevent debris from entering the mounting cavity, thereby avoiding debris from affecting the normal operation of the track wheels and related components, reducing the wear of the track wheels and related components, extending the overall service life of the cleaning robot, and improving the working efficiency and stability of the cleaning robot.

[0040] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0041] As shown in Figures 1 to 7, a cleaning robot provided in this application includes a bottom shell 10, wheel covers 20, two track wheels 30, and tracks 40.

[0042] The bottom shell 10 has a side shell 11 on its side. The wheel cover 20 and the side shell 11 enclose each other to form a mounting cavity 10a. Two track wheels 30 are installed in the mounting cavity 10a, and the track 40 is fitted onto the two track wheels 30. The track 40 has a first protrusion 41 extending toward the side shell 11, and the side shell 11 has a second protrusion 111 extending toward the wheel cover 20. The projections of the first protrusion 41 and the second protrusion 111 in the vertical direction at least partially overlap and there is a first preset gap 411 between them. The first protrusion 41 is located on the side of the second protrusion 111 away from the mounting cavity 10a.

[0043] There is a gap between the side shell 11 and the wheel cover 20 so that the track 40 can pass through the gap and be fitted onto the two track wheels 30 for transmission connection. The track 40 can also extend out of the surface of the side shell 11 and the wheel cover 20 to contact the ground and realize the movement of the cleaning robot.

[0044] In existing systems, the gap between the track 40 and the side shell 11 is generally set to extend from the inside to the outside of the mounting cavity 10a. This makes it easy for debris to be pressed into the mounting cavity 10a from the bottom or fall into it from the top. However, in this application, by setting the projections of the first protrusion 41 and the second protrusion 111 in the vertical direction to at least partially overlap, and having a first preset gap 411 between them, the extension direction of the first preset gap 411 between the side shell 11 and the track 40 entering the mounting cavity 10a forms an angle with the vertical direction, for example, it can be perpendicular to the vertical direction. This makes it less likely for debris to be pressed into the mounting cavity 10a from the bottom or fall into it from the top.

[0045] The cleaning robot of this application embodiment, through the provided first protrusion 41 and second protrusion, allows the extension direction of the first preset gap 411 to form an angle with the vertical direction. During the cleaning process, debris above the track 40 is less likely to fall into the mounting cavity 10a along the first preset gap 411. Furthermore, debris below the track 40 is also less likely to be pressed into the mounting cavity 10a along the first preset gap 411. Therefore, the cleaning robot of this application can effectively prevent debris from entering the mounting cavity 10a, thereby avoiding debris affecting the normal operation of the track wheel 30 and its related components, reducing wear on the track wheel 30 and its related components, extending the overall service life of the cleaning robot, and improving the working efficiency and stability of the cleaning robot.

[0046] In some embodiments, a transmission assembly is also installed within the mounting cavity 10a to drive the track wheel 30 and / or other mechanical structures. This construction also prevents debris from affecting the normal operation of the transmission assembly, reduces wear on the transmission assembly, and thus ensures the normal operation of the track wheel 30 and its related components driven by the transmission structure.

[0047] As shown in Figure 9, in some embodiments, the second protrusion 111 includes two first straight segments 1111 and two first arcuate segments 1112. The two first arcuate segments 1112 are spaced apart at both ends of the side shell 11 along the traveling direction of the cleaning robot. The two first straight segments 1111 are located between and connected to the two first arcuate segments 1112. The two first straight segments 1111 and the two first arcuate segments 1112 enclose each other to form an annular second protrusion 111. In this way, the first protrusion 41 can cover the second protrusion 111 at various points along the entire track 40. During the cleaning process, debris above the track 40 is unlikely to fall into the mounting cavity 10a along the first preset gap 411 between the first straight segment 1111 and the first protrusion 41. Debris below the track 40 is also unlikely to be pressed into the mounting cavity 10a along the first preset gap 411 between the first straight segment 1111 and the first protrusion 41. Debris on the front and rear sides of the track 40 is also unlikely to enter the mounting cavity 10a along the first preset gap 411 between the two first arc-shaped segments 1112 and the first protrusion 41. Therefore, debris can be prevented from entering the mounting cavity 10a in all directions, ensuring the normal operation of the structure inside the mounting cavity 10a.

[0048] As shown in Figures 8 and 9, in some embodiments, the two track wheels 30 are respectively installed at the two first arc-shaped segments 1112. By placing the two track wheels 30 at the two first arc-shaped segments 1112, effective support can be achieved for the entire track 40, ensuring that the track 40 can stably drive the cleaning robot to move during movement. Furthermore, with the track wheels 30 blocking the movement, debris is less likely to enter the mounting cavity 10a from the front and rear sides of the track 40, thus further protecting the internal structure of the mounting cavity 10a.

[0049] As shown in Figures 3, 4, 6, and 7, in some embodiments, the first preset gap 411 between the first protrusion 41 and the second protrusion 111 in the vertical direction is 0.5-1.5 mm. It should be noted that if the first preset gap 411 between the first protrusion 41 and the second protrusion 111 is too small, the second protrusion 111 may interfere with the movement of the track 40, and may also obstruct drainage when a drainage structure is provided on the second protrusion 111. If the first preset gap 411 between the first protrusion 41 and the second protrusion 111 is too large, debris can easily enter the mounting cavity 10a from between the first protrusion 41 and the second protrusion 111. Therefore, in this embodiment, by limiting the first preset gap 411 between the first protrusion 41 and the second protrusion 111, both the stable movement of the track 40 and the prevention of debris from entering the mounting cavity 10a can be ensured.

[0050] As shown in Figures 3, 4, 6, and 7, in some embodiments, the track 40 includes a track body 43. A first protrusion 41 is disposed on the side of the track body 43 near the side shell. The track body 43 extends toward the mounting cavity 10a and is spaced apart from the second protrusion 111 along the direction from the side shell 11 to the wheel cover 20. Based on the structure of the first protrusion 41, the gap between the track 40 and the side shell 11 can be L-shaped. If debris wants to enter the mounting cavity 10a, it needs to first enter the first preset gap 411 between the first protrusion 41 and the second protrusion 111, and then pass through the gap between the track body and the second protrusion 111. Therefore, this structure makes it more difficult for debris to enter the mounting cavity 10a, ensuring the normal operation of the structure within the mounting cavity 10a. Furthermore, the portion of the track body 43 extending toward the mounting cavity 10a can also be connected to the track wheel 30 for transmission, enabling the track wheel 30 to stably drive the track 40 to move.

[0051] For example, the distance between the track body 43 and the second protrusion 111 is 0.5-1.5 mm. By limiting this distance, the stable movement of the track 40 can be ensured, and debris can be prevented from entering the mounting cavity 10a.

[0052] In a further embodiment, the portion of the second protrusion 111 outside the first protrusion 41 is provided with a groove. Here, the portion of the second protrusion 111 outside the first protrusion 41 refers to the part where the vertical projection of the second protrusion 111 does not coincide with the first protrusion 41. The groove allows debris outside the track 40 to more easily enter the groove, and is less likely to enter the mounting cavity 10a along the first preset gap 411 between the second protrusion 111 and the first protrusion 41.

[0053] For example, the groove is an arc-shaped groove. In this way, it is not easy for debris to enter the mounting cavity 10a along the first preset gap 411 between the second protrusion 111 and the first protrusion 41, and it can also prevent debris from being stuck in the groove and affecting the movement of the cleaning robot.

[0054] As shown in Figures 1 to 7, in some embodiments, the track 40 is provided with a third protrusion 42 extending toward the wheel cover 20, and the wheel cover 20 is provided with a fourth protrusion 21 extending toward the side shell 11. The projections of the third protrusion 42 and the fourth protrusion 21 in the vertical direction at least partially overlap and there is a second preset gap 421 between them. The third protrusion 42 is located on the side of the second protrusion 111 away from the mounting cavity 10a.

[0055] In existing systems, the gap between the track 40 and the wheel cover 20 generally extends from the inside to the outside of the mounting cavity 10a. This makes it easy for debris to be pressed into the mounting cavity 10a from the bottom or fall into it from the top. However, in this application, by setting the projections of the third protrusion 42 and the fourth protrusion 21 in the vertical direction to at least partially overlap, and having a second preset gap 421 between them, the extension direction of the second preset gap 421 between the wheel cover 20 and the track 40 entering the mounting cavity 10a forms an angle with the vertical direction, for example, it can be perpendicular to the vertical direction. This makes it less likely for debris to be pressed into the mounting cavity 10a from the bottom or fall into it from the top. Therefore, in this embodiment, debris can be further prevented from entering the mounting cavity 10a from the top or bottom through the space between the track 40 and the wheel cover 20, thereby preventing debris from affecting the normal operation of the track wheel 30 and its related components, reducing the wear of the track wheel 30 and its related components, extending the overall service life of the cleaning robot, and improving the working efficiency and stability of the cleaning robot.

[0056] As shown in Figure 10, in some embodiments, the fourth protrusion 21 includes two second straight segments 211 and two second arcuate segments 212. The two second arcuate segments 212 are spaced apart at both ends of the wheel cover 20 along the traveling direction of the cleaning robot. The two second straight segments 211 are located between the two second arcuate segments 212 and are correspondingly connected. The two second straight segments 211 and the two second arcuate segments 212 enclose each other to form an annular fourth protrusion 21. In this way, the third protrusion 42 can be covered by the fourth protrusion 21 at various points on the wheel cover 20. During the cleaning process, debris above the track 40 is unlikely to fall into the mounting cavity 10a along the second preset gap 421 between the upper second straight segment 211 and the third protrusion 42. Debris below the track 40 is unlikely to be pressed into the mounting cavity 10a along the second preset gap 421 between the lower second straight segment 211 and the third protrusion 42. Debris on the front and rear sides of the track 40 is unlikely to enter the mounting cavity 10a along the second preset gap 421 between the two second arc-shaped segments 212 and the third protrusion 42. Therefore, debris can be prevented from entering the mounting cavity 10a in all directions, ensuring the normal operation of the structure inside the mounting cavity 10a.

[0057] As shown in Figures 3, 4, 6, and 7, in some embodiments, the second preset gap 421 between the third protrusion 42 and the fourth protrusion 21 in the vertical direction is 0.5-1.5 mm. It should be noted that if the second preset gap between the third protrusion 42 and the fourth protrusion 21 is too small, the fourth protrusion 21 may interfere with the movement of the track 40, and may also obstruct drainage when a drainage structure is provided on the fourth protrusion 21. If the second preset gap between the third protrusion 42 and the fourth protrusion 21 is too large, debris can easily enter the mounting cavity 10a from between the third protrusion 42 and the fourth protrusion 21. Therefore, in this embodiment, limiting the second preset gap 421 between the third protrusion 42 and the fourth protrusion 21 can both ensure the stable movement of the track 40 and prevent debris from entering the mounting cavity 10a.

[0058] As shown in Figures 3, 4, 6, and 7, in some embodiments, the track 40 includes a track body 43, with a third protrusion 42 disposed on the side of the track body 43 near the wheel cover 20. The track body 43 extends toward the mounting cavity 10a and is spaced apart from the fourth protrusion 21 along the direction from the side shell 11 to the wheel cover 20. Based on the structure of the third protrusion 42, the gap between the track 40 and the wheel cover 20 can be L-shaped. If debris wants to enter the mounting cavity 10a, it needs to first enter the second preset gap 421 between the third protrusion 42 and the fourth protrusion 21, and then pass through the gap between the track body 43 and the fourth protrusion 21. Therefore, this structure makes it more difficult for debris to enter the mounting cavity 10a, ensuring the normal operation of the structure within the mounting cavity 10a. Furthermore, the portion of the track body 43 extending toward the mounting cavity 10a can also be connected to the track wheel 30 for transmission, enabling the track wheel 30 to stably drive the track 40 to move.

[0059] For example, the distance between the track body and the fourth protrusion 21 is 0.5-1.5 mm. By limiting this distance, the stable movement of the track 40 can be ensured, and debris can be prevented from entering the mounting cavity 10a.

[0060] In a further embodiment, the fourth protrusion 21, at least the portion outside the third protrusion 42, is inclined toward the center of the wheel cover 20 along the direction from the side shell 11 to the wheel cover 20. Here, the portion of the fourth protrusion 21 outside the third protrusion 42 refers to the part where the vertical projection of the fourth protrusion 21 does not coincide with the third protrusion 42. By inclinedly setting this portion, debris can be prevented from remaining on the fourth protrusion 21, allowing it to slide off the wheel cover 20 along the inclined portion of the fourth protrusion 21. This further prevents debris from entering the mounting cavity 10a between the track 40 and the wheel cover 20, ensuring the normal operation of the structure within the mounting cavity 10a.

[0061] As shown in Figures 1 and 2, and Figures 4 and 7, in this embodiment of the application, the side shell 11 has at least a second protrusion 111 extending toward the wheel cover 20 at its bottom. The projections of the first protrusion 41 and the second protrusion 111 in the vertical direction at least partially overlap, and there is a first preset gap 411 between them. The first protrusion 41 is located on the side of the second protrusion 111 away from the mounting cavity 10a. Furthermore, the wheel cover 20 has at least a fourth protrusion 21 extending toward the side shell 11 at its bottom. The projections of the third protrusion 42 and the fourth protrusion 21 in the vertical direction at least partially overlap, and there is a second preset gap 421 between them. The third protrusion 42 is located on the side of the second protrusion 111 away from the mounting cavity 10a. When the cleaning robot is performing mobile cleaning, the robot's track will contact the ground. If it encounters obstacles or uneven ground, the track 40 is prone to local deformation. This deformation will result in insufficient contact between the track and the ground, thereby affecting the stability of the cleaning robot's movement and the cleaning effect. In this application, at the bottom of the cleaning robot, the first protrusion 41 is located below the second protrusion 111, and the third protrusion 42 is located below the fourth protrusion 21. When the track 40 contacts the ground, the second protrusion 111 and the fourth protrusion 21 respectively support both sides of the track 40, allowing the track 40 to maintain a good shape during movement. This prevents the track 40 from deforming or loosening when encountering obstacles or uneven surfaces, thereby enhancing the overall structural stability of the track 40. Specifically, the support of the second protrusion 111 on the first protrusion 41 prevents the track 40 from collapsing inward on one side of the side shell 11, thus preventing the side shell 11 from rubbing against the ground. Similarly, the support of the fourth protrusion 21 on the third protrusion 42 prevents the track 40 from collapsing inward on one side of the wheel cover 20, thus preventing the wheel cover 20 from rubbing against the ground. Therefore, the stability of the cleaning robot's movement and the cleaning effect can be guaranteed.

[0062] Furthermore, this support design effectively prevents insufficient grip, slippage, or jamming of the track 40 due to deformation during prolonged use, ensuring that the track 40 maintains a relatively stable contact with the ground. This significantly enhances the grip of the track wheels 30, thereby improving the cleaning robot's stability and cleaning effectiveness in various environments. For example, the cleaning robot can still efficiently perform cleaning tasks in complex terrain, with obstacles, or when there is a lot of debris at the bottom of a pool.

[0063] Furthermore, this support design extends the service life of the track 40. Because the track 40 is less prone to deformation during use, wear on the track wheels 30 and related components is effectively reduced. This not only lowers maintenance costs but also improves the overall reliability and durability of the cleaning robot.

[0064] Therefore, this design can effectively improve the cleaning efficiency, stability and durability of cleaning robots, meeting the requirements of cleaning robots for high efficiency, stability and durability.

[0065] In some embodiments, the side shell 11 or wheel cover 20 is provided with a support block located within the mounting cavity 10a. The support block is positioned between the track wheels 30 and close to the bottom of the track 40. For example, the support block is positioned between two track wheels 30 and close to the bottom of the track 40. It should be noted that the bottom of the track 40 itself can be supported by the track wheels 30, and the portion of the track 40 between the track wheels 30 is hollow. In this embodiment, the hollow portion at the bottom of the track 40 can be supported by the provided support block, thus providing stable support for the bottom of the track 40 body. Therefore, the track 40 can maintain a good shape during movement, preventing deformation or loosening when encountering obstacles or uneven surfaces, thereby enhancing the overall structural stability of the track 40 and ensuring the stability and cleaning effect of the cleaning robot.

[0066] In a further embodiment, the support block may be provided with multiple rollers that contact the bottom of the track 40. This can prevent the support block from obstructing the movement of the track 40 and ensure that the track 40 can move smoothly.

[0067] As shown in Figure 8, in this embodiment of the application, the track 40 is meshed with the track wheel 30 to ensure that the track wheel 30 can stably drive the track 40 to move.

[0068] As shown in Figure 8, in some embodiments, the side shell 11 is provided with a track wheel mounting part 112, and the track wheel 30 is rotatably mounted on the track wheel mounting part 112 so that the track wheel 30 is driven to rotate under the drive of the transmission component, thereby driving the track 40 to run.

[0069] As shown in Figures 8 and 11, in some embodiments, the track wheel 30 is further provided with an annular groove 31 circumferentially disposed on the track wheel 30, and a protrusion 431 is provided circumferentially inside the track wheel 30. The protrusion 431 is adapted to fit and is placed in the annular groove 31. In this way, through the adaptation of the protrusion 431 and the annular groove 31, the movement of the track 40 can be guided, and the track 40 can be prevented from detaching from the track wheel 30 along the axial direction of the track wheel 30, so as to further ensure the stable movement of the track 40.

[0070] As shown in Figures 8 to 10, in some embodiments, the cleaning robot further includes a guiding and positioning structure. This structure includes multiple guide grooves 61 and multiple guide posts 62, with each guide groove 61 and guide post 62 corresponding to one another. The guide posts 62 pass through the guide grooves 61. The guiding and positioning structure is located between the side shell 11 and the wheel cover 20. The multiple guide grooves 61 are located on one of the side shell 11 and the wheel cover 20, and the multiple guide posts 62 are located on the other. The one-to-one correspondence and connection of the multiple guide posts 62 and multiple guide grooves 61 enables positioning and installation between the side shell 11 and the wheel cover 20, ensuring a stable installation position and guaranteeing the position of the track 40 between them. This avoids obstructing the movement of the track 40, allowing it to move stably.

[0071] For example, the guide groove 61 is provided on the side of the side shell 11 facing the wheel cover 20, and the guide post 62 is provided on the side of the wheel cover 20 facing the side shell 11.

[0072] For example, the guide positioning structure is disposed between the track wheels 30 and includes four guide grooves 61 and four guide posts 62.

[0073] As shown in Figures 8 to 10, in some embodiments, the cleaning robot further includes a locking structure, which includes multiple slots 71 and multiple buckles 72. The slots 71 and buckles 72 correspond one-to-one, with the buckles 72 engaging with the slots 71. The locking structure is located between the side shell 11 and the wheel cover 20. The slots 71 are located on one side shell 11 and the wheel cover 20, and the buckles 72 are located on the other side shell 11 and the wheel cover 20. The one-to-one correspondence and connection of the buckles 72 and slots 71 enables a stable installation between the side shell 11 and the wheel cover 20, allowing the wheel cover 20 to protect the structure within the mounting cavity 10a. Furthermore, since the buckles 72 and slots 71 can be quickly disassembled, it also facilitates quick removal of the wheel cover 20 when debris enters the mounting cavity 10a, allowing for inspection and maintenance of the structure within the mounting cavity 10a.

[0074] For example, the slot 71 is provided on the side of the side shell 11 facing the wheel cover 20, and the buckle 72 is provided on the side of the wheel cover 20 facing the side shell 11.

[0075] For example, the engaging structure is provided between the track wheels 30 and includes four slots 71 and four latches 72. Each pair of slots 71 and latches 72 is arranged from the top to the bottom of the side shell 11. Each slot 71 opens towards another slot 71 from the top to the bottom of the side shell 11, and the latches 72 engage with the slots 71 from their openings. In this way, a secure connection between the side shell 11 and the wheel cover 20 can be achieved through the engaging structure.

[0076] As shown in Figures 1 and 8, in this embodiment of the application, two side shells 11 are provided on both sides of the bottom shell 10. Each side shell 11 is connected to a wheel cover 20 to form a mounting cavity 10a. Track wheels 30 are provided in both mounting cavities 10a to drive the tracks 40 on both sides to move.

[0077] As shown in Figures 1 and 2, the cleaning robot of this embodiment further includes an upper shell 90, which is connected to the bottom shell 10 and together with the bottom shell 10 forms a mounting portion. The mounting portion is used to mount components such as the motor housing assembly and the pump body. When the cleaning robot of this application is running, it can use the pump body to draw water to clean the pool, and the motor housing assembly can be used to drive the track wheels 30 to rotate, thereby eliminating the movement of the track 40, allowing the cleaning robot to move and clean along the pool edge.

[0078] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the content of this application's specification and drawings under the concept of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A cleaning robot, characterized in that, include: A bottom shell, wherein side shells are provided on the sides of the bottom shell; A wheel cover, wherein the wheel cover and the side shell are enclosed to form a mounting cavity; Two track rollers are installed inside the mounting cavity; Tracks, which are fitted onto the two track wheels; The track has a first protrusion extending toward the side shell, and the side shell has a second protrusion extending toward the wheel cover. The projections of the first protrusion and the second protrusion in the vertical direction at least partially overlap and there is a first preset gap between them. The first protrusion is located on the side of the second protrusion away from the mounting cavity.

2. The cleaning robot as described in claim 1, characterized in that, The second protrusion includes two first straight segments and two first arc segments. The two first arc segments are spaced apart at both ends of the side shell along the traveling direction of the cleaning robot. The two first straight segments are located between the two first arc segments and are correspondingly connected. The two first straight segments and the two first arc segments enclose each other to form an annular second protrusion.

3. The cleaning robot according to claim 2, characterized in that, The two track wheels are respectively installed at the two first arc-shaped segments.

4. The cleaning robot as described in claim 1, characterized in that, The first preset gap between the first protrusion and the second protrusion in the vertical direction is 0.5-1.5mm.

5. The cleaning robot as described in claim 1, characterized in that, The track includes a track body, the first protrusion is disposed on the side of the track body near the side shell, the track body extends toward the mounting cavity, and is spaced apart from the second protrusion along the direction from the side shell to the wheel cover.

6. The cleaning robot as described in claim 1, characterized in that, The track has a third protrusion extending toward the wheel cover, and the wheel cover has a fourth protrusion extending toward the side shell. The projections of the third protrusion and the fourth protrusion in the vertical direction at least partially overlap and there is a second preset gap between them. The third protrusion is located on the side of the fourth protrusion away from the mounting cavity.

7. The cleaning robot as described in claim 6, characterized in that, The fourth protrusion includes two second straight segments and two second arc segments. The two second arc segments are spaced apart at both ends of the wheel cover along the traveling direction of the cleaning robot. The two second straight segments are located between the two second arc segments and are correspondingly connected. The two second straight segments and the two second arc segments enclose each other to form an annular fourth protrusion.

8. The cleaning robot as described in claim 6, characterized in that, The second preset gap between the third protrusion and the fourth protrusion in the vertical direction is 0.5-1.5mm.

9. The cleaning robot as described in claim 6, characterized in that, The track includes a track body, the third protrusion is disposed on the side of the track body near the wheel cover, the track body extends toward the mounting cavity, and is spaced apart from the fourth protrusion along the direction from the side shell to the wheel cover.

10. The cleaning robot as described in claim 1, characterized in that, It also includes a guiding and positioning structure, which comprises multiple guide grooves and multiple guide posts, with each guide groove and guide post corresponding to another. The guide posts pass through the guide grooves. The guiding and positioning structure is located between the side shell and the wheel cover. The multiple guide grooves are located in one of the side shell and the wheel cover, and the multiple guide posts are located in the other of the side shell and the wheel cover; and / or, It also includes a snap-fit ​​structure, which includes multiple slots and multiple buckles, with each slot and buckle corresponding to the other. The buckles snap into the slots. The snap-fit ​​structure is located between the side shell and the wheel cover. The multiple slots are located on one of the side shell and the wheel cover, and the multiple buckles are located on the other of the side shell and the wheel cover.

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