A variable suction port mid-sweeping module and a sweeping robot

Abstract

This invention discloses a variable suction port mid-sweeping module, including a mid-sweeping body comprising a mid-sweeping shell, a mid-sweeping roller brush, and a drive module. The drive module drives the mid-sweeping roller brush to rotate within the mid-sweeping shell, causing the roller brush to actively hover within the shell. A mid-sweeping rubber plate blocks the upper portion of the suction port, while the lower portion remains open. When the high-pressure suction port area draws in high pressure from the suction port, suction can only occur at the lower portion of the mid-sweeping rubber plate. By rotating the mid-sweeping roller brush, the size of the suction port is changed, allowing for precise adjustment of the suction power. Thanks to the active hovering of the roller brush within the mid-sweeping shell and the increased suction power, hair can be quickly and directly sucked into the dustbin from the suction port without passing through the roller brush, significantly improving hair cleaning efficiency and solving the industry-wide problems of hair clogging and difficulty in cleaning hair entangled on the roller brush.

Description

Technical Field

[0001] This invention relates to the field of robotic vacuum cleaner technology, and more specifically, to a mid-sweeping module with a variable suction port and a robotic vacuum cleaner using the mid-sweeping module. Background Technology

[0002] Chinese invention patent application number 202122858057.3 discloses a robotic vacuum cleaner, including a robot body and movable components. The robot body includes a bottom cover, a drive roller assembly, a centrifugal fan, a dust collection box, a main suction channel, branch suction channels, and a swivel wheel assembly. When the robotic vacuum cleaner is working normally, the movable components are in a retracted state. The robot moves along a set path under the action of the drive roller assembly and swivel wheels. At this time, the side brushes rotate and clean, collecting dust and debris through the suction port and main suction port into the dust collection box. When the robot detects a narrow cleaning area or a cleaning area that the main body cannot reach, it extends the movable components. Through the rotation of the side brushes on the movable components and the suction port's adsorption, dust and debris are collected into the dust collection box through the feeding channel. This device not only expands the cleaning range and improves cleaning efficiency but also makes the robotic vacuum cleaner more intelligent and automated.

[0003] However, like other robotic vacuum cleaners on the market, the aforementioned technical solutions often feature a fixed-size suction port with an area that cannot be changed. When increased suction power is needed, the fan speed is typically increased. However, due to the relatively large area of ​​traditional suction ports, simply increasing the fan speed does not significantly improve suction power. This results in unsatisfactory cleaning performance for pet hair (hair, pet hair, etc.) in a home environment, frequently leading to missed areas. Hair gets stuck in the suction port, unable to enter the dustbin, or becomes entangled in the central brush, causing cleaning difficulties and frequent complaints from users. Therefore, it is necessary to propose a central brush module with a variable suction port and a robotic vacuum cleaner to at least partially solve the problems existing in the current technology. Summary of the Invention

[0004] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. The summary section of this invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] To at least partially solve the above problems, the present invention provides a variable suction port mid-sweeping module, comprising: a mid-sweeping body disposed within the main body of a sweeping robot, the mid-sweeping body including a mid-sweeping shell, a mid-sweeping roller brush, and a drive module, wherein a suction port is provided on the first shell plate of the mid-sweeping shell, the mid-sweeping roller brush is disposed within the mid-sweeping shell and has multiple mid-sweeping rubber plates therein, and the drive module is located on one side of the mid-sweeping shell, the drive module driving the mid-sweeping roller brush to rotate within the mid-sweeping shell, such that at least one mid-sweeping rubber plate is selectively used to change the area size of the suction port.

[0006] According to an embodiment of the present invention, the variable suction port of the intermediate sweeping module includes a roller brush comprising a roller brush shaft and a plurality of intermediate sweeping rubber plates. The roller brush shaft is rotatably disposed inside the intermediate sweeping housing. The drive module drives the roller brush shaft to rotate inside the intermediate sweeping housing. The plurality of intermediate sweeping rubber plates are disposed on the roller brush shaft, and at least one intermediate sweeping rubber plate is tightly attached to the inner wall of the intermediate sweeping housing on the side away from the roller brush shaft.

[0007] According to an embodiment of the present invention, the output shaft of the drive module is connected to the middle sweeping roller brush. The output shaft is used to drive the roller brush shaft to rotate inside the middle sweeping housing. A position signal mark is provided on the output shaft. A position detection sensor is provided on the outside of the drive module. The position detection sensor is used to detect the signal of the position signal mark.

[0008] According to an embodiment of the present invention, the variable suction port middle sweeping module includes a drive module comprising a drive motor and a gear reduction module. The drive motor is disposed on the second shell plate of the middle sweeping shell, the gear reduction module is disposed on one side of the middle sweeping shell, the position detection sensor is disposed on the outside of the gear reduction module, and the drive motor is connected to the output shaft via the gear reduction module.

[0009] According to an embodiment of the present invention, the variable suction port mid-sweeping module includes a gearbox housing and a gear set. The gearbox housing is disposed on one side of the mid-sweeping housing, and the lower part of the gearbox housing is provided with a shaft groove for accommodating the output shaft and a position signal mark. The position signal mark is disposed between the output shaft and the shaft groove via a fixed shaft.

[0010] According to an embodiment of the present invention, the variable suction port of the middle sweeping module has a groove on the output shaft, a convex shaft at one end of the roller brush shaft, the convex shaft being inserted into the groove, and an output gear on the output shaft, the output gear being meshed with the gear set.

[0011] According to an embodiment of the present invention, a variable suction port middle sweeping module is provided on the roller brush shaft, wherein a plurality of first fixing plates and a plurality of second fixing plates are provided on the roller brush shaft, the plurality of first fixing plates and the plurality of second fixing plates are evenly distributed on the roller brush shaft in an alternating manner, and a first fixing groove is formed between one side of the first fixing plate and the adjacent second fixing plate, the middle sweeping rubber plate is disposed in the first fixing groove, and the side of the middle sweeping rubber plate away from the roller brush shaft is tightly attached to the inner wall of the middle sweeping shell.

[0012] According to an embodiment of the present invention, the variable suction port of the middle sweeping module has a second fixing groove between the other side of the first fixing plate and the adjacent second fixing plate. An inner shielding plate is provided in the second fixing groove. The side of the inner shielding plate away from the roller brush shaft faces and is close to the middle sweeping rubber plate. The inner shielding plate corresponds to the middle sweeping rubber plate.

[0013] According to an embodiment of the present invention, the position signal marker of the variable suction port is a magnetic ring, the magnetic ring includes a plurality of magnetic blocks, and there is a gap between two adjacent magnetic blocks. The gap is located in the middle of the N and N poles, wherein at least one of the gaps corresponds to at least one of the middle sweeping rubber plates in the middle sweeping roller brush.

[0014] The present invention also provides a sweeping robot, including a sweeping robot body, the sweeping robot body including the above-mentioned middle sweeping module disposed inside.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] 1. This invention provides a variable suction port mid-sweeping module, comprising: a mid-sweeping body, which includes a mid-sweeping shell, a mid-sweeping roller brush, and a driving module. The driving module drives the mid-sweeping roller brush to rotate within the mid-sweeping shell, causing the roller brush to actively hover within the shell. At least one of the multiple mid-sweeping rubber plates faces the high-pressure suction port area and can hover there. This rubber plate blocks the upper portion of the suction port, while the lower portion remains open. Therefore, when the high-pressure suction port area draws in high pressure from the suction port, it can only do so from the lower portion of the rubber plate. By rotating the mid-sweeping roller brush, the size of the suction port area can be changed, thus enabling precise adjustment of the suction power. Thanks to the active suspension and increased suction power of the central brush inside the central cleaning housing, hair can be quickly sucked into the dust box directly from the suction port without passing through the brush. This greatly improves hair cleaning efficiency and solves the industry problem of hair clogging and hair being difficult to clean when tangled on the brush.

[0017] 2. This invention also provides a robotic vacuum cleaner with a central sweeping roller brush installed inside the main body. When the drive module is activated, it can drive the central sweeping roller brush to rotate inside the central sweeping shell, thereby adjusting the size of the suction port. This allows the robotic vacuum cleaner to actively adjust the size of the suction port, further enabling the high-pressure suction area to adjust the suction power at the suction port. Thanks to the increased suction power from the central sweeping roller brush, hair can be quickly sucked into the dustbin directly from the suction port without passing through the roller brush, greatly improving hair cleaning efficiency and solving the industry problem of hair clogging and difficulty in cleaning hair entangled on the roller brush.

[0018] The variable suction port mid-sweeping module of the present invention, other advantages, objectives and features of the present invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of the present invention. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the internal structure of the sweeping shell in this invention.

[0022] Figure 3 This is a schematic diagram of the sweeping roller brush in this invention.

[0023] Figure 4 This is a schematic diagram of the adhesive application plate in this invention.

[0024] Figure 5 This is a schematic diagram of the structure of the scanning shell in this invention.

[0025] Figure 6 This is a schematic diagram of the drive module in this invention.

[0026] Figure 7 This is a schematic diagram of the gear reduction module in this invention.

[0027] Figure 8 This is a schematic diagram of the position signal marker in this invention.

[0028] Figure 9 This is a schematic diagram of the grating mechanism in the present invention.

[0029] Figure 10 This is a schematic diagram of the structure of the sweeping robot in this invention.

[0030] Figure 11This is a schematic diagram of the lidar module in this invention.

[0031] Figure 12 This is an exploded structural diagram of the lidar module in this invention.

[0032] Figure 13 This is a schematic diagram of the structure of the first protective plate in this invention.

[0033] Figure 14 For the present invention Figure 13 A magnified structural diagram of part A in the middle.

[0034] Figure 15 This is a schematic diagram of the structure of the second protective plate in this invention.

[0035] Figure 16 This is a schematic diagram of the radar section in this invention.

[0036] Figure 17 This is a top view of the structure of the sweeping robot in this invention. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0038] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0039] like Figures 1-4 As shown, the present invention provides a variable suction port mid-sweeping module, including: a mid-sweeping body 100, which is installed inside a sweeping robot body 200. The mid-sweeping body 100 includes a mid-sweeping shell 1, a mid-sweeping roller brush 2, and a drive module 3. A feeding suction port 11 is provided at the bottom of the mid-sweeping shell 1 to facilitate the entry of hair and other debris into the mid-sweeping shell 1. A suction port 10 is provided on the first shell plate 12 of the mid-sweeping shell 1. The suction port 10 is located below the high-pressure suction port area 13, and the high-pressure suction port area 13 is connected to the high-pressure suction part (not shown) inside the sweeping robot body 200. The mid-sweeping roller brush 2 is rotatably installed inside the mid-sweeping shell 1. The mid-sweeping roller brush 2 has multiple mid-sweeping rubber plates 22. The drive module 3 is located on one side of the mid-sweeping shell 1 and is used to drive the mid-sweeping roller brush 2, so that at least one mid-sweeping rubber plate is selectively used to change the size of the suction port.

[0040] In other words, when the aforementioned central sweeping roller brush 2 is used inside the main body 200 of the sweeping robot, the main body 200 of the sweeping robot can control the central sweeping roller brush 2 to perform cleaning work in different modes.

[0041] For example, Mode 1: Normal Cleaning Mode. In normal cleaning mode, the drive module 3 can drive the central sweeping roller brush 2 to run at a specific speed. In this way, the multiple central sweeping rubber plates 22 in the central sweeping roller brush 2 can rotate continuously, which can work with the high-pressure suction port area 13 to suck up the garbage into the dust collection box, realizing whole-house cleaning in normal cleaning mode.

[0042] Mode 2: Pure Suction Mode. When users find a lot of hair in their home, they can switch to pure suction mode. In this mode, the drive module 3 controls the central sweeping roller brush 2 to precisely hover in a fixed position, so that at least one central sweeping rubber plate 22 inside the central sweeping roller brush 2 covers part of the suction port 10. That is, at this time, the central sweeping rubber plate 22 blocks the upper part of the suction port 10, while the lower part of the suction port 10 is open. Therefore, when the high-pressure suction port area 13 sucks in the suction port 10 under high pressure, it can only suck in the lower part of the central sweeping rubber plate 22, thereby reducing or adjusting the effective suction area of ​​the suction port 10, increasing the suction power at the suction port 10, and thus achieving hair removal.

[0043] Through the design of the above structure, thanks to the active suspension and increased suction of the central brush 2 inside the central brush housing 1, hair can be quickly sucked into the dust box directly from the suction port 10 without passing through the brush. This can greatly improve the hair cleaning efficiency and solve the industry problem of hair clogging and hair being difficult to clean when tangled on the brush.

[0044] Exemplary mid-sweep roller brush

[0045] Furthermore, some embodiments of the present invention provide a specific structure for the intermediate sweeping roller brush 2, which includes a roller brush shaft 21 and multiple intermediate sweeping rubber plates 22. Here, the roller brush shaft 21 is installed inside the intermediate sweeping shell 1 and can rotate inside the intermediate sweeping shell 1. The drive module 3 then drives the roller brush shaft 21 to rotate inside the intermediate sweeping shell 1 to realize the working state of the intermediate sweeping roller brush 2 in the main body 200 of the sweeping robot in the above different modes.

[0046] Specifically, in order to install the aforementioned middle brush plate 22, a plurality of first fixing plates 23 and a plurality of second fixing plates 24 are installed on the roller brush shaft 21. The plurality of first fixing plates 23 and the plurality of second fixing plates 24 are evenly distributed on the roller brush shaft 21 in an alternating manner, and a first fixing groove 25 is formed between one side of the first fixing plate 23 and the adjacent second fixing plate 24. The middle brush plate 22 is installed in the first fixing groove 25.

[0047] Furthermore, since the central brush plate 22 is a key component for adjusting the size of the suction port 10, at least one side of the central brush plate 22 away from the roller brush shaft 21 is tightly fitted with the inner wall of the central brush housing 1, so that the central brush plate 22 and the inner wall of the central brush housing 1 form a seal to prevent pressure leakage. In this way, when the suction port 10 sucks in hair, there will be no air leakage between the central brush plate 22 and the inner wall of the central brush housing 1, which greatly enhances the suction power of the adjusted suction port 10 and effectively cleans the hair.

[0048] Furthermore, the middle part of the aforementioned central cleaning plate 22 is recessed to one side, making the central cleaning plate 22 V-shaped. On the one hand, this makes it easier for hair to converge towards the middle of the central cleaning plate 22 after entering the feed inlet 11, and then be sucked into the high-pressure suction port area 13 through the dust suction port 10. On the other hand, the V-shaped central cleaning plate 22 has good elasticity, can fit more tightly to the inner wall of the central cleaning shell 1, and is not easy to deform, thus having a better service life.

[0049] Furthermore, in order to cooperate with the V-shaped central brush plate 22, the middle part of the first fixing plate 23 is also recessed to one side, so that the first fixing plate 23 is V-shaped. The first fixing plate 23 has a smooth guide groove 231 and two smooth ridges 232. In this way, after the hair enters the central brush plate 22, it can pass through the smooth guide groove 231 and smooth ridges 232 more easily and will not stay there. This can greatly improve the hair cleaning efficiency and solve the industry problem of hair clogging and hair entangled on the roller brush.

[0050] It is understood that the shape of the intermediate cleaning plate 22 is not limited to V-shape, but can also be straight or wavy. Specific forms will not be listed one by one in this invention.

[0051] Furthermore, the other side of the first fixing plate 23 and the adjacent second fixing plate 24 form a second fixing groove 26. An inner shielding plate 27 is installed in the second fixing groove 26. More specifically, the side of the inner shielding plate 27 away from the roller brush shaft 21 faces and is close to the middle sweeping rubber plate 22. The inner shielding plate 27 corresponds to the middle sweeping rubber plate 22 and is also V-shaped. Therefore, when hair passes through the smooth guide groove 231, the smooth ridge 232, and then passes through the inner shielding plate 27, it enters the suction port 10 and then into the high-pressure suction port area 13 without contacting the back of the middle sweeping rubber plate 22. The inner shielding plate 27 blocks the hair, greatly improving the smoothness of the inside of the middle sweeping roller brush 2 and preventing hair from being adsorbed onto the middle sweeping rubber plate 22 and affecting the cleaning effect.

[0052] Furthermore, multiple reinforcing ribs 28 are designed on the inner shield 27. These reinforcing ribs 28 are arranged along the length of the inner shield 27, which can increase the strength of the inner shield 27 and greatly extend its service life. They also prevent the inhalation of hard foreign objects from damaging the middle cleaning plate 22 and prevent unevenness caused by scratches on the inner wall from attracting hair.

[0053] Exemplary driver module

[0054] like Figures 5-8 As shown, further, some embodiments of the present invention provide a specific structure of the drive module 3, which includes a drive motor 31 and a gear reduction module 32. Here, the drive motor 31 is mounted on the second shell plate 14 of the middle sweeping shell 1, while the gear reduction module 32 is mounted on one side of the middle sweeping shell 1. The second shell plate 14 of the middle sweeping shell 1 provides a mounting position for the drive motor 31 and the gear reduction module 32, and also makes the structure between the middle sweeping shell 1 and the drive module 3 very compact, suitable for use on the main body 200 of the sweeping robot.

[0055] Therefore, after the drive motor 31 starts working, the drive motor 31 is connected to the output shaft 30 through the gear reduction module 32 to realize the speed adjustment of the output shaft 30, which in turn can drive the middle sweeping roller brush 2 to rotate in the middle sweeping shell 1, so that at least one middle sweeping rubber plate 22 can change the area size of the suction port 10.

[0056] In order to further suspend the central sweeping plate 22 in a suitable position to achieve precise changes in the size of the suction port 10, a position signal marker 34 is installed on the output shaft 30 of the drive module 3. At the same time, a position detection sensor 33 is installed on the outside of the gear reduction module 32 in the drive module 3. The position detection sensor 33 is used to detect the signal of the position signal marker 34, and the signal is fed back to the controller. The controller then controls the rotation of the drive motor 31 to achieve precise driving of the central sweeping roller brush 2, so as to achieve precise changes in the size of the suction port 10 by the central sweeping plate 22.

[0057] Furthermore, the aforementioned gear reduction module 32 includes a gearbox housing 321 and a gear set 322. Specifically, the gearbox housing 321 is installed on one side of the intermediate sweep housing 1, and a shaft groove 323 is designed in the lower part of the gearbox housing 321. The shaft groove 323 can accommodate the output shaft 30 and the position signal mark 34. The position signal mark 34 is installed between the output shaft 30 and the shaft groove 323 through a fixed shaft 341. Therefore, the gearbox housing 321 can provide protection for the position signal mark 34 to prevent external water stains, dust, etc. from damaging the position signal mark 34.

[0058] Furthermore, the output shaft 30 is provided with a groove 301, and a convex shaft 210 is installed at one end of the roller brush shaft 21. The convex shaft 210 is inserted into the groove 301. The output shaft 30 is provided with an output gear 302, which meshes with the gear set 322.

[0059] Therefore, after the drive motor 31 starts, it can drive the gear set 322 inside the gearbox housing 321 to rotate. The gear set 322 then rapidly decelerates the drive motor 31 to a suitable speed. The gear set 322 then drives the output gear 302 to rotate, thereby transmitting power to the output shaft 30. The brush shaft 21 is connected to the output shaft 30 via a convex shaft 210 inserted into the groove 301. Thus, the gear set 322 can drive the brush shaft 21 to rotate. The position signal mark 34 on the output shaft 30 also rotates inside the gearbox housing 321, while the position detection sensor 33 on the outside of the gearbox housing 321 detects the position signal mark 34. The signal is detected and fed back to the controller (not shown) inside the robot vacuum body 200. The operation of the drive motor 31 enables the roller brush shaft 21 to rotate precisely to a suitable position and hover inside the middle sweeping shell 1. This ensures that at least one middle sweeping rubber plate 22 in the middle sweeping roller brush 2 is in close contact with the inner wall of the middle sweeping shell 1. At least one middle sweeping rubber plate 22 faces the suction port 10 and can be hovered at the suction port 10. Therefore, when the high-pressure suction port area 13 performs high-pressure suction on the suction port 10, high-pressure suction can only be performed below the middle sweeping rubber plate 22. Thus, by rotating the middle sweeping roller brush 2, the size of the suction port 10 is changed to achieve the adsorption and cleaning of hair.

[0060] It should be noted that the position detection sensor 33 is a Hall component, and the position signal marker 34 is a magnetic ring. This magnetic ring includes multiple magnetic blocks, ensuring that the number of pole pairs of the magnetic ring matches the number of the central sweeping pads 22. This ensures that each time the N and S poles at the position detection sensor 33 change position, the central sweeping pads 22 remain in a completely fixed position. For example, in this invention, the number of central sweeping pads 22 is set to 3, i.e., the 3 central sweeping pads 22 are distributed at 120°, corresponding to a magnetic ring with 6 magnetic blocks, so the number of pole pairs is 3. The robot vacuum cleaner body 200 obtains the N and S pole switching data of the position detection sensor 33 to sense that the central sweeping pads 22 have moved to the predetermined position and issues a braking command. It can be understood that the control logic in this invention is to determine externally that the central sweeping brush 2 needs to hover → start deceleration → obtain data from the position detection sensor 33 → brake to the desired position.

[0061] By designing the above structure, the coverage area of ​​the suction port 10 by the middle sweeping plate 22 is different, thereby realizing the active adjustment of the effective area of ​​the suction port 10.

[0062] Understandably, in order to more precisely control the braking action of the central sweeping roller brush 2, allowing it to actively hover at a fixed position to block the suction port 10, a gap is formed between two adjacent magnetic blocks in the magnetic ring, giving the magnetic ring the aforementioned number of pole pairs. The gap is located between the N and S poles, and at least one gap corresponds to at least one central sweeping rubber plate 22 in the central sweeping roller brush 2. This allows for precise control of the braking action of the central sweeping roller brush 2, precisely changing the size of the suction port 10. Alternatively, a delay calibration method can be used to control the braking action of the central sweeping roller brush 2. That is, the braking timing can be finely adjusted to delay the triggering of the robot vacuum cleaner body 200 to issue a braking command to the central sweeping roller brush 2.

[0063] Furthermore, such as Figure 9 As shown, a grating mechanism can be installed in the gear reduction module 32 to control the braking action of the sweeping roller brush 2. Here, the grating mechanism 35 can include an annular grating 351 and an optocoupler element 352. The annular grating 351 can be installed on the fixed shaft 341 and is coaxial with the roller brush shaft 21 in the sweeping roller brush 2. The optocoupler element 352 can be installed in the shaft groove 323. The annular grating 351 passes through the optocoupler element 352. Therefore, when the drive motor 31 drives the roller brush shaft 21 to rotate through the gear reduction module 32 and the output shaft 30, the annular grating 351 also rotates synchronously under the rotation of the output shaft 30. As the annular grating 351 rotates, the optocoupler element 352 will send continuous pulse signals to the controller in the main body 200 of the sweeping robot. The controller then controls the rotation of the drive motor 31, so that the sweeping roller brush 2 can actively hover in place after the braking action to block the suction port 10.

[0064] like Figures 9-16 As shown, the present invention also provides a sweeping robot, the sweeping robot body 200 having the above-mentioned middle sweeping module, the middle sweeping shell 1 having an inner support plate 15 installed on it, the middle sweeping shell 1 being installed in the shell 201 of the sweeping robot body 200 through the inner support plate 15.

[0065] Furthermore, the robot vacuum cleaner body 200 is equipped with a rotating central brush 2. When the drive module 3 is started, it can drive the central brush 2 to rotate inside the central brush housing 1, thereby adjusting the size of the suction port 10. This allows the robot vacuum cleaner body 200 to actively adjust the size of the suction port 10, further actively adjusting the suction power of the high-pressure suction port area 13 at the suction port 10. Thanks to the increased suction power of the central brush 2, hair can be quickly sucked into the dust box directly from the suction port 10 without passing through the brush, which can greatly improve the hair cleaning efficiency and solve the industry problem of hair clogging and hair being difficult to clean when tangled on the brush.

[0066] Exemplary LiDAR Module

[0067] Furthermore, in some embodiments of the present invention, a lidar module 4 is installed on the housing 201 of the robot vacuum cleaner body 200. The lidar module 4 can reduce the blind spot of the radar and increase the radar's field of view, enabling the robot vacuum cleaner body 200 to better select its route. Furthermore, the lidar module 4 also has a protective function, effectively reducing the radar damage caused by objects falling and hitting the lidar module 4 on the robot vacuum cleaner.

[0068] To achieve the functions of the aforementioned lidar module 4, the lidar module 4 includes a first protective plate 41, a radar unit 42, a second protective plate 43, and multiple internal protective mechanisms 44. Specifically, a third fixing groove 202 is formed on the housing 201, and the second protective plate 43 is installed in the third fixing groove 202. The second protective plate 43 serves as the supporting component of the entire lidar module 4, providing support for the lidar module 4. Further, the first protective plate 41 is installed on the second protective plate 43, while the radar unit 42 is installed between the first protective plate 41 and the second protective plate 43. Multiple internal protective mechanisms 44 are installed between the first protective plate 41 and the second protective plate 43. The structure 44 is evenly distributed radially between the first protective plate 41 and the second protective plate 43. Furthermore, the radar section 42 is provided with flower-shaped grooves 425 corresponding to the inner protective mechanism 44. The multiple flower-shaped grooves 425 are also radially shaped. Therefore, when an object falls and hits the lidar module 4, the first protective plate 41 above can first bear the weight impact of the object, while the multiple inner protective mechanisms 44 can further decompose the weight impact of the object, decomposing the vertical falling weight impact force into multiple horizontal impact components. The inner protective mechanisms 44 can absorb and cancel the impact components, thus preventing the object from falling directly onto the radar section 42, thereby greatly increasing the service life of the radar section 42.

[0069] Exemplary internal protection mechanism

[0070] Furthermore, some embodiments of the present invention provide a specific structure of the inner protection mechanism 44, through which the above-mentioned protection of the radar unit 42 is achieved;

[0071] Specifically, the inner protective mechanism 44 of this structure includes an oblique support rod 441, a transverse stud 442, and a transverse disassembly component 443. To install the transverse disassembly component 443, multiple inner grooves 411 are provided at the bottom of the first protective plate 41. Furthermore, an oblique groove 412 is provided on the inner side of each inner groove 411, allowing the oblique support rod 441 to be installed within the oblique groove 412 and pass through the flower-shaped groove 425, thus enabling a movable connection between the upper end of the oblique support rod 441 and the inner end of the transverse disassembly component 443. The lower end of the inclined support rod 441 is movably connected to the second protective plate 43. Therefore, when the first protective plate 41 is impacted by the weight of the object, the multiple inclined support rods 441 below support the first protective plate 41. The upper end of the inclined support rod 441 moves obliquely towards the lateral disintegration component 443, thereby causing the lateral disintegration component 443 to be subjected to force. In this way, the multiple lateral disintegration components 443 decompose the weight impact force into multiple lateral impact forces, and then the lateral disintegration components 443 further offset and absorb the lateral impact forces.

[0072] Furthermore, the aforementioned transverse disassembly component 443 includes a transverse push rod 444, a transverse spring 445, and a transverse fixing cylinder 446. Specifically, the transverse spring 445 is sleeved on the transverse fixing cylinder 446, and the inner end of the transverse push rod 444 is movably inserted into the transverse fixing cylinder 446. The transverse push rod 444 has a baffle 447, which allows the transverse spring 445 to movably abut against the baffle 447. Furthermore, two transverse limiting plates 420 are also installed on the inner wall of the inner groove 411. The baffle 447 is slidably connected to the two transverse limiting plates 420, so the transverse push rod 444 can reciprocate within the inner groove 411 through the two transverse limiting plates 420. Therefore, when the inclined support rod 441 is subjected to force, its upper end can push the transverse push rod 444 laterally, and the baffle 447 causes the transverse spring 445 to deform laterally to provide transverse elasticity, thereby absorbing and offsetting the transverse impact force.

[0073] Furthermore, to adjust the elastic force of the transverse spring 445, a transverse inner hole 413 is opened on the outside of the transverse inner hole 413. Further, a fixing block 414 is installed on the outside of the transverse inner hole 413. Then, the transverse stud 442 passes through the transverse inner hole 413 and the fixing block 414 and abuts against the outer end of the transverse disassembled part 443. Therefore, by rotating the transverse stud 442, the transverse disassembled part 443 can be moved inward, thereby realizing the adjustment of the deformation of the transverse spring 445, and thus the transverse spring 445 provides different elastic forces.

[0074] Exemplary radar section

[0075] Furthermore, some embodiments of the present invention provide a specific structure for the radar section. The radar section 42 of this structure includes a radar housing 421, which comprises a flower-shaped housing 422 and a flower-shaped cover 423. The flower-shaped cover 423 is mounted on the flower-shaped housing 422. The flower-shaped housing 422 has multiple flower-shaped protrusions 424, with a flower-shaped groove 425 between two adjacent flower-shaped protrusions 424. A laser sensor (not shown) is installed within each flower-shaped protrusion 424, and a recessed through-hole is installed at the outer end of each flower-shaped protrusion 424. The mirror 426, here the number of multiple flower-shaped protrusions 424 can be designed to be 8, and then by installing 8 laser sensors to work with the concave lens 426, the concave lens 426 has the effect of scattering light, which can reduce the blind spot of the laser radar module 4, increase the field of view of the laser radar module 4, and enable the robot vacuum body 200 to better select the route. In addition, the robot vacuum body 200 can also actively avoid obstacles to prevent users from stepping on the robot vacuum body 200, thus increasing the safety of the robot vacuum body 200.

[0076] Furthermore, in some embodiments of the present invention, a plurality of first extension plates 415 are installed on the first protective plate 41, and a plurality of second extension plates 431 are correspondingly installed on the second protective plate 43. The first extension plates 415 and the second extension plates 431 correspond to each other. A plurality of vertically movable rods 416 are installed at the bottom of the first extension plate 415. A first straightening ring 432 and a second straightening ring 433 are provided on the second extension plate 431. The second straightening ring 433 is movably installed in the first straightening ring 432. In this way, the vertically movable rods 416 can pass through the second straightening ring 433. Therefore, after the first protective plate 41 is impacted by the weight of the object, it can move downward through the plurality of vertically movable rods 416. Furthermore, the inner wall of the third fixing groove 202 has an extension groove 203 corresponding to the second extension plate 431. A vertical inner hole 204 is opened in the extension groove 203. In this way, the vertically movable rods 416 can move within the vertical inner hole 204.

[0077] Furthermore, the bottom of the first protective plate 41 is provided with a plurality of first caps 417, and the flower-shaped box 422 is provided with an upper cap groove 427, so the first caps 417 can enter the upper cap groove 427 to prevent the flower-shaped box 422 from rotating under the first protective plate 41; furthermore, the second protective plate 43 is also provided with a vertical limiting rod 434 and a plurality of second caps 435, and a limiting groove 418 is correspondingly opened at the bottom of the first protective plate 41. A limiting spring 419 is installed in the limiting groove 418 and is installed on the vertical limiting rod 434, so as to prevent the flower-shaped box 422 from being damaged when the first protective plate 41 is subjected to force;

[0078] The multiple second caps 435 correspond to the multiple flower-shaped slots 425 to prevent the radar box 421 from rotating above the second protective plate 43.

[0079] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0080] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0081] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. Other modifications can be easily made by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A mid-sweeping module with a variable suction port, characterized in that, include: The sweeping body (100) is set inside the sweeping robot body (200). The sweeping body (100) includes a sweeping shell (1), a sweeping roller brush (2) and a drive module (3). A dust suction port (10) is provided on the first shell plate (12) of the sweeping shell (1). The sweeping roller brush (2) is set inside the sweeping shell (1). The drive module (3) is located on one side of the sweeping shell (1). The intermediate sweeping roller brush (2) includes a roller brush shaft (21) and multiple intermediate sweeping rubber plates (22). The roller brush shaft (21) is rotatably disposed inside the intermediate sweeping housing (1). The output shaft (30) of the drive module (3) is connected to the intermediate sweeping roller brush (2). The output shaft (30) drives the roller brush shaft (21) to rotate inside the intermediate sweeping housing (1). Multiple intermediate sweeping rubber plates (22) are disposed on the roller brush shaft (21). At least one intermediate sweeping rubber plate (22) is selectively used to change the area size of the suction port (10). At least one other intermediate sweeping rubber plate (22) is tightly attached to the inner wall of the intermediate sweeping housing (1) on the side away from the roller brush shaft (21). A position signal marker (34) is provided on the output shaft (30), and a position detection sensor (33) is provided on the outside of the drive module (3). The position detection sensor (33) is used to detect the signal of the position signal marker (34).

2. The mid-sweeping module with a variable suction port according to claim 1, characterized in that, The drive module (3) includes a drive motor (31) and a gear reduction module (32). The drive motor (31) is mounted on the second shell plate (14) of the middle sweep shell (1). The gear reduction module (32) is mounted on one side of the middle sweep shell (1). The position detection sensor (33) is mounted on the outside of the gear reduction module (32). The drive motor (31) is connected to the output shaft (30) through the gear reduction module (32).

3. The mid-sweeping module with a variable suction port according to claim 2, characterized in that, The gear reduction module (32) includes a gearbox housing (321) and a gear set (322). The gearbox housing (321) is located on one side of the intermediate sweep housing (1). The lower part of the gearbox housing (321) is provided with a shaft groove (323) for accommodating the output shaft (30) and the position signal mark (34). The position signal mark (34) is located between the output shaft (30) and the shaft groove (323) through a fixed shaft.

4. The mid-sweeping module with a variable suction port according to claim 3, characterized in that, The output shaft (30) is provided with a groove (301), and one end of the roller brush shaft (21) is provided with a convex shaft (210). The convex shaft (210) is inserted into the groove (301), and the output shaft (30) is provided with an output gear (302). The output gear (302) is meshed with the gear set (322).

5. The mid-sweeping module with a variable suction port according to claim 1, characterized in that, The roller brush shaft (21) is provided with a plurality of first fixing plates (23) and a plurality of second fixing plates (24). The plurality of first fixing plates (23) and a plurality of second fixing plates (24) are evenly distributed on the roller brush shaft (21) in an alternating manner. A first fixing groove (25) is formed between one side of the first fixing plate (23) and the adjacent second fixing plate (24). The middle brushing plate (22) is disposed in the first fixing groove (25).

6. The mid-sweeping module with a variable suction port according to claim 5, characterized in that, The other side of the first fixing plate (23) is connected to the adjacent second fixing plate (24) to form a second fixing groove (26). An inner shielding plate (27) is provided in the second fixing groove (26). The side of the inner shielding plate (27) away from the roller brush shaft (21) faces and is close to the middle brush plate (22). The inner shielding plate (27) corresponds to the middle brush plate (22).

7. The mid-sweeping module with a variable suction port according to claim 1, characterized in that, The position signal marker (34) is set as a magnetic ring, which includes multiple magnetic blocks. There is a gap between two adjacent magnetic blocks. The gap is located in the middle of the N and N poles. At least one of the gaps corresponds to at least one of the middle sweeping rubber plates (22) in the middle sweeping roller brush (2).

8. A robotic vacuum cleaner, characterized in that, include: The main body (200) of the sweeping robot includes the mid-sweeping module as described in any one of claims 1 to 7.

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