Cleaning robot and cleaning system

Abstract

The application provides a cleaning robot and a cleaning system. The cleaning robot comprises a shell, a dust collecting box and a dust extraction pipeline. The shell is provided with a mounting cavity. The shell is provided with a dust removal opening. The dust collecting box is arranged in the mounting cavity. The dust collecting box is used for collecting dust. The dust collecting box is provided with a dust collecting opening and a dust extraction opening. The dust collecting opening and the dust extraction opening are arranged on two sides of a center line of the dust collecting box. One end of the dust extraction pipeline is communicated with the dust extraction opening. The other end of the dust extraction pipeline is connected with the dust removal opening of the shell. The technical scheme can effectively extract the dust in the dust collecting box, and avoid the accumulation of dust.

Description

Technical Field

[0001] This application relates to the field of cleaning technology, and in particular to a cleaning robot and cleaning system. Background Technology

[0002] Robotic vacuum cleaners free up people's hands, cleaning floors for them. They automatically collect and remove dust. After cleaning, the dustbin needs to be emptied to make room for the next cleaning cycle. However, current robotic vacuum cleaners have blind spots in their dustbins, failing to remove all dust. Dust accumulates, making it difficult to clean over time and reducing the dustbin's storage space. Summary of the Invention

[0003] One objective of this application is to provide a cleaning robot and cleaning system that can more effectively remove dust and prevent its accumulation.

[0004] According to one aspect of this application, a cleaning robot is provided, the cleaning robot comprising:

[0005] The housing encloses an installation cavity and has a dust removal port.

[0006] A dust collection box, disposed in the mounting cavity, is used to collect dust. The dust collection box has a dust collection port and a dust extraction port, located on opposite sides of the centerline of the dust collection box.

[0007] A dust extraction pipe, one end of which is connected to the dust extraction port, and the other end of which is connected to the dust removal port of the housing.

[0008] In one aspect, the cleaning robot also includes a fan located on one side of the dust collection box. The fan is used to generate a dust-collecting airflow that passes through the dust collection box. The dust collection box includes a windward plate facing the direction of the dust-collecting airflow. The dust collection port is located on the windward plate and corresponds to the dust-collecting airflow.

[0009] The dust collection box also includes a first side plate and a second side plate, which are arranged opposite to each other and connected to the windward plate. The dust extraction port is located on the first side plate.

[0010] In one aspect, the dust collection port is located at the end of the windward plate away from the dust extraction port.

[0011] In one aspect, the center of the fan is located at the center line of the housing, the center line of the dust collection box is offset from the center line of the housing, and the center of the dust collection port is set corresponding to the center line of the housing.

[0012] In one aspect, the dust collection box further includes a filter screen disposed between the windward plate and the fan;

[0013] The first side plate includes a first plate surface and a second plate surface, which are connected at an angle. The side of the first plate surface away from the second plate surface is connected to the windward plate, and the side of the second plate surface away from the first plate surface is connected to the filter screen. The first plate surface is perpendicular to the filter surface of the filter screen. The dust extraction port is located on the second plate surface. The angle between the first plate surface and the second plate surface is a first angle θ1, which satisfies: 90°≤θ1≤180°.

[0014] In one aspect, the dust collection box includes an upper cover and a lower box body, the upper cover being disposed above the lower box body, and the wind-facing plate, the first side plate, the second side plate, and the filter screen being disposed between the upper cover and the lower box body. The wind-facing plate, the first side plate, the second side plate, the filter screen, the lower box body, and the upper cover are arranged to form the dust collection box.

[0015] The wind-facing plate extends gradually away from the lower box body, and a clearance space is formed between the wind-facing plate and the lower box body. The clearance space is used to install the cleaning roller brush.

[0016] In one aspect, the dust extraction pipe includes a first pipe section and a second pipe section, the first pipe section and the second pipe section are connected, the end of the first pipe section away from the second pipe section is connected to the dust collection port, the end of the second pipe section away from the first pipe section is connected to the housing, and a second included angle is formed between the first pipe section and the second pipe section, the second included angle being θ2, which satisfies: 90°<θ2≤180°.

[0017] In one aspect, the connection between the first pipe segment and the second pipe segment is arranged in an arc shape.

[0018] In one aspect, the dust collection box includes a sealing frame disposed at the dust extraction port;

[0019] The cleaning robot includes a rotating cover, which is placed over the dust extraction port and rotatably connected to the sealing frame.

[0020] In one aspect, the pivot cover includes a cover body and a pivot, the pivot being rotatably connected to the sealing frame, and the cover body being connected to the pivot;

[0021] The pivot cover also includes a torsion spring, which is sleeved on the pivot and provides closing torque when the cover body is rotated open.

[0022] In one aspect, the cleaning robot includes a shield that is rotatably disposed over the dust removal port, and the shield's coverage area is larger than the opening area of ​​the dust removal port.

[0023] In one aspect, the cleaning robot also includes a sealing ring disposed at the connection between the dust extraction pipe and the dust extraction port.

[0024] In addition, to solve the above problems, this application also provides a cleaning system, which includes a base station and a cleaning robot as described above. The base station is equipped with a management library for storing the cleaning robot. The base station also includes a dust collection bag and a dust collection pump. The dust collection pump is connected to the dust collection bag. The management library is also equipped with a suction port, which is connected to the dust collection bag. The cleaning robot is placed in the management library, and the dust removal port of the cleaning robot is connected to the suction port of the base station.

[0025] In this application's technical solution, a dust collection port and a dust extraction port are respectively located on both sides of the center line of the dust collection box. During dust extraction, the extraction airflow flows from the dust collection port to the dust extraction port, and the airflow can penetrate the internal space of the dust collection box, ensuring that the extraction airflow reaches every corner of the internal space of the dust collection box, thereby reducing blind spots in dust extraction. Thus, this application's technical solution can more effectively extract dust from the dust collection box, preventing dust accumulation.

[0026] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0027] The above and other objectives, features and advantages of this application will become more apparent from a detailed description of exemplary embodiments thereof with reference to the accompanying drawings.

[0028] Figure 1 This is a schematic diagram of the internal structure of the cleaning robot in this application.

[0029] Figure 2 This application Figure 1 A schematic diagram of the internal structure of the dust collection box of the cleaning robot.

[0030] Figure 3 This application Figure 1 A schematic diagram of the dust collection box and dust extraction pipe of a cleaning robot.

[0031] Figure 4 This application Figure 3 A top-view structural diagram of the central dust collection box and dust extraction pipe.

[0032] Figure 5 This application Figure 4 A top view of the structure of the central dust collection box.

[0033] Figure 6 This application Figure 3 A schematic diagram showing the disassembled structure of the dust collection box and the dust extraction pipe.

[0034] Figure 7 This application Figure 6 A structural schematic diagram of the central dust collection box from the front view.

[0035] Figure 8 This application Figure 6 A schematic diagram of the dust extraction duct.

[0036] Figure 9 This application Figure 6 A schematic diagram of the structure of the transfer shaft cover.

[0037] Figure 10 This is a schematic diagram of the base station structure in this application.

[0038] The annotations in the attached figures are explained as follows:

[0039] 10. Housing; 20. Dust collection box; 30. Dust extraction duct; 40a. Dust collection airflow; 40b. Dust extraction airflow; 50. Shaft cover; 60. Shielding cover; 70. Sealing ring; 80. Base station; 90. Fan;

[0040] 101. Dust collection port; 201. Dust inlet; 202. Dust extraction port; 203. Centerline of dust collection box; 204. Clearance space; 210. Windproof panel; 220. First side panel; 230. Filter screen; 240. Top cover; 250. Lower box body; 260. Handle; 270. Sealing frame; 280. Second side panel; 310. First pipe section; 320. Second pipe section; 510. Cover body; 520. Rotating shaft; 530. Torsion spring; 810. Management compartment; 820. Dust extraction port;

[0041] 221. First plate; 222. Second plate; 231. Support; 232. Filter screen; 110. Center line of the housing; 901. Center line of the fan. Detailed Implementation

[0042] Although this application can be readily embodied in various forms of implementation, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of this application and is not intended to limit the application to what is described herein.

[0043] Therefore, a feature described in this specification is used to illustrate one feature of one embodiment of this application, and does not imply that every embodiment of this application must have the described feature. Furthermore, it should be noted that this specification describes many features. While certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0044] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of this application are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0045] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided to make the description of this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The drawings are merely illustrative of this application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted.

[0046] The preferred embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0047] See Figures 1 to 5 As shown, this application provides a cleaning robot, which is mainly used for cleaning flat surfaces and slightly raised surfaces, such as floors and tabletops. The cleaning robot is primarily used for cleaning floors. The cleaning robot includes: a housing 10, a dust collection box 20, and a dust extraction pipe 30. Both the dust collection box 20 and the dust extraction pipe 30 are disposed within the housing 10.

[0048] Specifically, the housing 10 forms an installation cavity, and the housing 10 has a dust removal port 101. The housing 10 refers to the external support structure of the cleaning robot, and the installation cavity is used to install various components. The housing 10 is mainly used for support to prevent internal components from being damaged by collisions. The housing 10 can be made of metal or plastic. The dust removal port 101 is a passage used to connect the dust extraction pipe 30 and the external structure, facilitating the extraction of dust stored inside the dust collection box 20.

[0049] A dust collection box 20 is located within the mounting cavity and is used to collect dust. The dust collection box 20 has a dust collection port 201 and a dust extraction port 202, located on either side of the center line 203 of the dust collection box 20; that is, the dust collection port 201 and the dust extraction port 202 are located on the left and right sides of the center line 203 of the dust collection box 20. For example, the dust collection port 201 is located on the right side, and the dust extraction port 202 is located on the left side. If the dust collection port 201 is located on the left side, then the dust extraction port 202 is located on the right side. This left-right arrangement ensures that during dust extraction, the airflow from the dust collection port 201 to the dust extraction port 202 passes through the internal space of the dust collection box 20, reducing dead zones in the airflow path.

[0050] One end of the dust extraction pipe 30 is connected to the dust extraction port 202, and the other end is connected to the dust removal port 101 of the housing 10. During dust extraction, the dust extraction pipe 30 is used to connect the inner space of the dust collection box 20. The airflow generated by the dust extraction operation passes through the dust collection port 201, the dust extraction port 202, and the dust extraction pipe 30 in sequence to the dust removal port 101, thereby extracting the dust stored inside the dust collection box 20.

[0051] In this application's technical solution, a dust collection port 201 and a dust extraction port 202 are respectively located on both sides of the center line 203 of the dust collection box 20. During dust extraction, the dust extraction airflow 40b flows through the dust collection port 201 to the dust extraction port 202. The dust extraction airflow 40b can penetrate the internal space of the dust collection box 20, ensuring that the dust extraction airflow 40b can reach every corner of the internal space of the dust collection box 20, thereby reducing blind spots in dust extraction. Thus, the technical solution of this application can more effectively extract dust from the dust collection box 20, avoiding dust accumulation.

[0052] Specifically, see again Figure 2 As shown, the cleaning robot also includes a fan 90, which is located on one side of the dust collection box 20. The fan 90 generates a dust-collecting airflow 40a that passes through the dust collection box 20. The dust collection box 20 includes a wind-facing plate 210 facing the inflow direction of the dust-collecting airflow 40a. A dust collection port 201 is located on the wind-facing plate 210 and corresponds to the dust-collecting airflow 40a. When the cleaning robot performs cleaning operations, the fan 90 starts operating. The dust-collecting airflow 40a generated by the fan 90 passes through the dust collection box 20. Driven by the dust-collecting airflow 40a, dust enters the dust collection box 20 from the dust collection port 201 and is trapped inside, thus completing the dust collection. The dust collection port 201 faces the dust-collecting airflow 40a, allowing for the collection of more dust.

[0053] See again Figure 5As shown, the dust collection box 20 also includes a first side plate 220 and a second side plate 280, which are arranged opposite to each other and connected to the windward plate 210. The dust extraction port 202 is located on the first side plate 220. Thus, the dust collection port 201 and the dust extraction port 202 are respectively located on different plate surfaces. This further ensures that the positions of the dust collection port 201 and the dust extraction port 202 are relatively separated. During dust extraction operations, the dust extraction airflow 40b can travel through more paths. Of course, the dust extraction port 202 can also be located on the second side plate 280.

[0054] Furthermore, to allow the dust extraction airflow 40b to flow through more areas of the interior space of the dust collection box 20, the dust collection port 201 is located at the end of the windward plate 210 away from the dust extraction port 202. Thus, the distance between the dust collection port 201 and the dust extraction port 202 is relatively large, allowing the dust extraction airflow 40b to flow through more space during dust extraction operations, thereby improving the dust extraction effect and reducing dust residue.

[0055] It should be noted that a dust collection cover can be installed at the dust collection port 201. The dust collection cover is vertically rotatable and located on the upper edge of the dust collection port 201. During dust collection or dust extraction operations, the dust collection airflow 40a or the dust extraction airflow 40b can impact the dust collection cover, causing it to rotate and open. When there is no airflow impact, the dust collection cover automatically closes onto the dust collection port 201 under its own weight, reducing dust leakage from the dust collection box 20.

[0056] In the above embodiments, the mounting cavity formed by the housing 10 sometimes needs to accommodate other structural components, such as a water tank. To increase the water tank's storage capacity, the center of the fan 90 is located at the centerline 110 of the housing 10, the centerline 203 of the dust collection box 20 is offset from the centerline 110 of the housing 10, and the center of the dust collection port 201 is set corresponding to the centerline 110 of the housing 10. Thus, the dust collection box 20 being offset from the centerline 110 of the housing 10 provides more installation space for the water tank after its installation, allowing the tank to store more water. However, to ensure that the dust collection effect is not weakened, the center of the dust collection port 201 is set corresponding to the centerline 110 of the housing 10. Consequently, the center of the dust-collecting airflow 40a generated by the fan 90 also corresponds to the center of the dust collection port 201, ensuring that the position with the largest central flow of the dust-collecting airflow 40a passes through the dust collection port 201. In simple terms, the center of the dust collection box 20 is offset from the centerline 901 of the fan 90, but the dust collection port 201 is directly opposite the centerline 901 of the fan 90.

[0057] The centerline 901 of the fan 90 extends through the center of the housing 10, meaning that the centerline 901 of the fan 90 and the centerline 110 of the housing 10 coincide.

[0058] In order to better retain dust in the dust collection box 20, the dust collection box 20 also includes a filter screen 230, which is located between the windward plate 210 and the fan 90. The dust collection airflow 40a generated by the fan 90 passes through the dust collection port 201 and then through the filter screen 230. The filter screen 230 plays a filtering role, retaining the collected dust and debris in the dust collection box 20.

[0059] See again Figure 4 As shown, in order to further increase the path length of the dust extraction airflow 40b, the first side plate 220 includes a first plate surface 221 and a second plate surface 222. The first plate surface 221 and the second plate surface 222 are connected at an angle. The side of the first plate surface 221 away from the second plate surface 222 is connected to the windward plate 210, and the side of the second plate surface 222 away from the first plate surface 221 is connected to the filter screen 230. The first plate surface 221 is perpendicular to the filter surface of the filter screen 230. The dust extraction port 202 is located on the second plate surface 222. The angle between the first plate surface 221 and the second plate surface 222 is the first angle θ1, which satisfies: 90°≤θ1≤180°.

[0060] In this way, the dust collection port 201 and the dust extraction port 202 are set at two diagonal positions. Thus, the dust collection port 201 and the dust extraction port 202 are far apart in the dust collection box 20, so that the dust extraction airflow 40b travels a longer path in the dust collection box 20 and passes through more space in the dust collection box 20, thereby improving the dust collection effect.

[0061] Furthermore, if the first included angle θ1 between the first plate surface 221 and the second plate surface 222 is equal to 90°, then the first plate surface 221 and the second plate surface 222 are perpendicular, and the second plate surface 222 and the filter surface of the filter screen 230 are located on the same plane. If the first included angle θ1 is less than 90°, the dust extraction pipe 30 will extend towards the fan 90, which will cause interference between the dust extraction pipe 30 and the fan 90. Therefore, the first included angle θ1 is greater than or equal to 90°.

[0062] Furthermore, since the first included angle θ1 between the first plate surface 221 and the second plate surface 222 is equal to 180°, the first plate surface 221 and the second plate surface 222 are parallel and located in the same plane. At this time, the path of the dust extraction pipe 30 is also the shortest. A shorter path of the dust extraction pipe 30 helps to reduce the pressure loss of the dust extraction airflow 40b.

[0063] If the first included angle θ1 is greater than 180°, the dust extraction pipe 30 will extend towards the front half of the cleaning robot, that is, towards the direction away from the base station, making it difficult for the dust extraction pipe 30 to connect to the base station 80. Therefore, the first included angle θ1 is less than or equal to 180°. Specifically, the first included angle θ1 can be one of 90°, 95°, 100°, 105°, 110°, 115°, 120°, 125°, 130°, 135°, 140°, 145°, 150°, 155°, 160°, 165°, 170°, 175°, or 180°. Of course, the numerical range of the angle can also be accurate to 1°.

[0064] If the dust extraction port 202 is located on the second side plate 280, then the second side plate 280 also has a first plate surface 221 and a second plate surface 222. Specifically, refer to the above description of the configuration of the first side plate 220, which will not be repeated here.

[0065] It is important to note that, following this diagonal flow pattern, a portion of the dust extraction airflow 40b cannot pass through the dust extraction port 202 in time at the corner of the opposite diagonal. This portion of the airflow impacts the first plate surface 221, causing it to swirl and form a vortex. This vortex rotates at the corner, effectively impacting and dispersing the dust at that location, preventing dust accumulation. Similarly, a vortex is also formed at the other diagonal position opposite the first plate surface 221. In other words, within the diagonal formed by the connection between the dust collection port 201 and the dust extraction port 202, a vortex is formed at each of the two corners of the opposite diagonal. This method effectively allows the dust extraction airflow 40b to carry away the dust.

[0066] The front and rear halves of the cleaning robot can be understood as follows: the robot's shell 10 is typically disc-shaped. The robot's normal direction of travel is defined as "forward." The front half refers to the semi-circular structure in front of the robot, and the rear half refers to the semi-circular structure behind the robot. Alternatively, the position of the cleaning roller brush can be considered the front half, and the position of the fan 90 can be considered the rear half.

[0067] See Figure 6As shown, the dust collection box 20 includes an upper cover plate 240 and a lower box body 250. The upper cover plate 240 is located above the lower box body 250. A wind-facing plate 210, a first side plate 220, a second side plate 280, and a filter screen 230 are located between the upper cover plate 240 and the lower box body 250. The wind-facing plate 210, the first side plate 220, the second side plate 280, the filter screen 230, the lower box body 250, and the upper cover plate 240 surround and form the dust collection box 20. This constitutes a storage space for storing dust and debris. The storage space of the dust collection box 20 can be used to store dust. The filter screen 230 includes a bracket 231 and a filter screen 232. The filter screen 232 is embedded in the bracket 231. The upper end of the bracket 231 is connected to the upper cover plate 240, and the lower end of the bracket 231 is connected to the lower box body 250. The dust collection box 20 also includes a handle 260, which is located on the upper surface of the upper cover plate 240, making it easy to pull the dust collection box 20.

[0068] See Figure 7 As shown, the wind-facing plate 210 extends gradually away from the lower housing 250, forming a clearance space 204 between the wind-facing plate 210 and the lower housing 250. This clearance space 204 is used to house the cleaning roller brush. The cleaning roller brush can lift up dust from the ground, allowing it to flow along the dust collection airflow 40a through the dust collection port 201 and into the dust collection box 20. This design allows for a more compact structure of the cleaning robot, reducing wasted space.

[0069] See Figure 8 As shown, after the cleaning robot completes its cleaning task, it needs to return to the base station 80 to remove dust. The docking point between the cleaning robot and the base station 80 is located in the rear half of the cleaning robot, and the fan 90 is also located in the rear half. To avoid the location of the fan 90 and to successfully complete the dust removal, the dust extraction pipe 30 includes a first pipe section 310 and a second pipe section 320. The first pipe section 310 and the second pipe section 320 are connected. The end of the first pipe section 310 away from the second pipe section 320 is connected to the dust collection port 201, and the end of the second pipe section 320 away from the first pipe section 310 is connected to the housing 10. The first pipe section 310 and the second pipe section 320 form a second included angle, θ2, which satisfies: 90°<θ2≤180°.

[0070] In other words, the first pipe section 310 and the second pipe section 320 are bent at a certain angle to avoid the position of the fan 90. When the dust extraction airflow 40b passes through the dust extraction pipe 30, it will come into contact with the inner wall surface of the dust extraction pipe 30. If the angle between the first pipe section 310 and the second pipe section 320 is 90°, then the inner wall surface of the first pipe section 310 and the inner wall surface of the second pipe section 320 are perpendicular. This means the dust extraction airflow 40b will directly impact the inner wall surface of the second pipe section 320, consuming a portion of the air pressure impact force and reducing the suction force. Furthermore, if the second included angle θ2 is less than 90°, it will not only reduce the suction force of the dust extraction airflow 40b but also cause dust to accumulate at the corner, making it difficult to clean.

[0071] Therefore, the angle between the first pipe section 310 and the second pipe section 320 is greater than 90° to avoid airflow impact at the corner position and reduce friction between the dust extraction airflow 40b and the inner wall of the dust extraction pipe 30. Alternatively, the angle between the first pipe section 310 and the second pipe section 320 can be equal to 180°, so that the dust extraction port 202 is closest to the dust removal port 101, and the first pipe section 310 and the second pipe section 320 form a straight pipe. Thus, 90° < θ2 ≤ 180°. Specifically, the angle θ2 can be one of 95°, 100°, 105°, 110°, 115°, 120°, 125°, 130°, 135°, 140°, 145°, 150°, 155°, 160°, 165°, 170°, 175°, or 180°. Of course, the numerical range of the angle can also be accurate to 1°.

[0072] Furthermore, to reduce dust accumulation within the dust extraction duct 30, the connection between the first duct section 310 and the second duct section 320 is arc-shaped. This eliminates dead zones within the dust extraction duct 30, ensuring a smooth inner wall and allowing the airflow 40b to impact the entire duct wall, thus reducing dust accumulation.

[0073] In addition, the smooth interior of the dust extraction duct 30 helps to reduce wind resistance and ensures that the dust extraction airflow 40b has sufficient impact force on the entire dust extraction duct 30.

[0074] See Figure 9As shown, to ensure sufficient air pressure impact force of the suction airflow 40b during dust extraction, the dust collection box 20 includes a sealing frame 270 located at the dust extraction port 202; the cleaning robot includes a rotating cover 50, which covers the dust extraction port 202 and is rotatably connected to the sealing frame 270. The sealing frame 270 has an interference fit design, and its coverage area is larger than that of the dust extraction port 202. The sealing frame 270 is used to seal the gap between the rotating cover 50 and the dust extraction port 202, reducing the leakage of the suction airflow 40b through the gap, thereby reducing pressure leakage of the suction airflow 40b and ensuring sufficient air pressure impact force for the suction airflow 40b.

[0075] It should be noted that during dust extraction, the shaft cover 50 rotates and opens under the action of the dust extraction airflow 40b, thereby opening the dust extraction port 202. The dust extraction airflow 40b carries the dust in the dust collection box 20 into the dust extraction pipe 30.

[0076] To reduce dust leakage from the dust collection box 20 during cleaning operations, the rotating cover 50 includes a cover body 510 and a rotating shaft 520. The rotating shaft 520 is rotatably connected to the sealing frame 270, and the cover body 510 is connected to the rotating shaft 520. The rotating cover 50 also includes a torsion spring 530, which is sleeved on the rotating shaft 520. The torsion spring 530 is used to provide closing torque when the cover body 510 is rotated open.

[0077] Normally, the cover body 510 is fastened to the sealing frame 270, meaning the pivot cover 50 is in a normally closed state. This prevents dust from leaking out through the dust extraction port 202 during floor cleaning by the cleaning robot. During dust extraction, the suction airflow 40b impacts the cover body 510 of the pivot cover 50, causing it to rotate and open, thus removing the dust. As the cover body 510 rotates open, the torsion spring 530 deforms, creating a closing torque that acts on the cover body 510, causing it to rotate in the opposite direction. After the dust extraction is complete, the cover body 510, no longer subjected to air pressure, is then fastened to the dust extraction port 202 by the closing torque.

[0078] It should be emphasized that the cover body 510 rotates horizontally, with the opening facing the rear half of the cleaning robot. This way, when the cover body 510 is open, the dust extraction airflow 40b quickly flows to the dust removal port 101, reducing the obstruction of the dust extraction airflow 40b by the cover body 510.

[0079] The cleaning robot includes a shielding cover 60, which rotates and is positioned over the dust collection port 101. The shielding cover 60 has a larger coverage area than the opening area of ​​the dust collection port 101. The shielding cover 60 is made of silicone and is used to seal the dust collection pipe 30 during normal operation. The shielding cover 60 and the rotating cover 50 seal both ends of the dust collection pipe 30, thereby reducing the amount of external dust entering the dust collection pipe 30 when the cleaning robot is performing cleaning work.

[0080] It should be emphasized that the rotation of the cover 60 is a vertical rotation. During the dust extraction operation, the dust extraction airflow 40b drives the cover 60 to open. When the dust extraction operation is completed, the cover 60 automatically rotates and falls under its own gravity, and the cover 60 is fastened to the dust extraction port 101.

[0081] The horizontal direction can be understood as the direction parallel to the cleaning surface when the cleaning robot is performing its cleaning work. The vertical direction can be understood as the direction perpendicular to the cleaning surface. Typically, the vertical direction is the direction of gravity.

[0082] To further ensure stable air pressure in the dust extraction airflow 40b, the cleaning robot also includes a sealing ring 70, which is located at the connection between the dust extraction pipe 30 and the dust extraction port 202. The sealing ring 70 is used to seal the gap between the dust extraction pipe 30 and the dust extraction port 202. For example, if the outer diameter of the dust extraction pipe 30 is smaller than that of the dust extraction port 202, and the dust extraction pipe 30 is inserted into the dust extraction port 202, the sealing ring 70 is fitted onto the outer wall of the dust extraction pipe 30, sealing the gap between the dust extraction pipe 30 and the dust extraction port 202.

[0083] See Figure 10 As shown, this application also provides a cleaning system, which includes a base station 80 and a cleaning robot. The base station 80 is provided with a management library 810 for storing the cleaning robot. The base station 80 also includes a dust collection bag and a dust collection pump. The dust collection pump is connected to the dust collection bag. The management library 810 is also provided with a suction port 820 connected to the dust collection bag. The cleaning robot is placed in the management library 810, and the dust removal port 101 of the cleaning robot is connected to the suction port 820 of the base station 80.

[0084] To illustrate the cleaning process of the cleaning robot in this application, the working process of the cleaning robot in this application will be further explained. The working process of the cleaning robot can be divided into two stages: the dust collection stage and the dust extraction stage.

[0085] During the dust collection phase, the cleaning robot moves across the cleaned floor while the fan 90 operates, generating a dust-collecting airflow 40a. This airflow 40a enters the dust collection box 20 through the dust collection port 201 and passes through the filter screen 230. Dust entering the dust collection box 20 is trapped by the filter screen 230 and stored inside. After dust collection is complete, the fan 90 stops operating.

[0086] During the dust extraction phase, the cleaning robot autonomously moves to the base station 80 and enters the management container 810. The rear half of the cleaning robot is housed within the management container 810, and the dust removal port 101 connects to the suction port 820 within the management container 810. The dust collection pump operates, generating a dust extraction airflow 40b. Under the impact of the dust extraction airflow 40b, both the rotating cover 50 and the shielding cover 60 open. The dust extraction airflow 40b sequentially passes through the dust collection port 201, the dust collection box 20, the suction port 202, the dust extraction pipe 30, and the dust removal port 101 before entering the suction port 820. From the suction port 820, it enters the dust collection bag, completing the dust collection. The dust collection port 201 and the suction port 202 are located on either side of the center line 203 of the dust collection box 20. The path of the dust extraction airflow 40b within the dust collection box 20 traverses the entire internal space of the dust collection box 20, thereby reducing dust residue. It should be noted that during dust extraction, part of the airflow of the extraction airflow 40b comes from the dust collection port 201, and another part enters the dust collection box 20 through the filter screen 230. In this way, the two parts are mixed together to form a turbulent effect, which further increases the position reached by the airflow and thus improves the cleaning effect.

[0087] Although this application has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since this application can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A cleaning robot, characterized in that, The cleaning robot includes: The housing encloses an installation cavity and has a dust removal port. A dust collection box is disposed in the mounting cavity and is used to collect dust. The dust collection box has a dust collection port and a dust extraction port, which are located at two diagonal positions of the dust collection box. The dust collection box includes a windward plate, a first side plate, and a second side plate. The first side plate and the second side plate are opposite to each other and both connected to the windward plate. The dust extraction port is located on the first side plate, and the dust collection port is located at the end of the windward plate away from the dust extraction port. The first side plate includes a first plate surface and a second plate surface, which are connected at an angle. The side of the first plate surface away from the second plate surface is connected to the windward plate. A dust extraction pipe, one end of which is connected to the dust extraction port and the other end of which is connected to the dust removal port of the housing; When the dust extraction airflow passes through the dust collection box, part of the dust extraction airflow impacts the first plate surface, so that a vortex is formed at each of the two corners of the other diagonal line formed by the connection between the dust collection port and the dust extraction port.

2. The cleaning robot according to claim 1, characterized in that, The cleaning robot also includes a fan, which is located on one side of the dust collection box. The fan is used to generate a dust collection airflow that passes through the dust collection box. The windward plate faces the inflow direction of the dust collection airflow, and the dust collection port is located on the windward plate and corresponds to the dust collection airflow.

3. The cleaning robot according to claim 2, characterized in that, The center of the fan is located at the center line of the housing, the center line of the dust collection box is offset from the center line of the housing, and the center of the dust collection port is set corresponding to the center line of the housing.

4. The cleaning robot according to claim 2, characterized in that, The dust collection box also includes a filter screen, which is disposed between the windward plate and the fan; The filter screen is connected to the side of the second plate away from the first plate. The first plate is perpendicular to the filter surface of the filter screen. The dust extraction port is located on the second plate. The included angle between the first plate and the second plate is the first included angle θ1, which satisfies: 90°≤θ1≤180°.

5. The cleaning robot according to claim 4, characterized in that, The dust collection box includes an upper cover plate and a lower box body. The upper cover plate is located above the lower box body. The wind-facing plate, the first side plate, the second side plate, and the filter screen are located between the upper cover plate and the lower box body. The wind-facing plate, the first side plate, the second side plate, the filter screen, the lower box body, and the upper cover plate surround and form the dust collection box. The wind-facing plate extends gradually away from the lower box body, and a clearance space is formed between the wind-facing plate and the lower box body. The clearance space is used to install the cleaning roller brush.

6. The cleaning robot according to any one of claims 1 to 5, characterized in that, The dust extraction pipe includes a first pipe section and a second pipe section, which are connected. The end of the first pipe section away from the second pipe section is connected to the dust collection port, and the end of the second pipe section away from the first pipe section is connected to the housing. The first pipe section and the second pipe section form a second included angle, which is θ2. The following condition is satisfied: 90°<θ2≤180°.

7. The cleaning robot according to claim 6, characterized in that, The connection between the first pipe segment and the second pipe segment is arranged in an arc shape.

8. The cleaning robot according to any one of claims 1 to 5, characterized in that, The dust collection box includes a sealing frame, which is disposed at the dust extraction port; The cleaning robot includes a rotating cover, which is placed over the dust extraction port and rotatably connected to the sealing frame.

9. The cleaning robot according to claim 8, characterized in that, The rotating cover includes a cover body and a rotating shaft, the rotating shaft being rotatably connected to the sealing frame, and the cover body being connected to the rotating shaft; The pivot cover also includes a torsion spring, which is sleeved on the pivot and provides closing torque when the cover body is rotated open.

10. The cleaning robot according to any one of claims 1 to 5, characterized in that, The cleaning robot includes a cover that is rotatably positioned over the dust removal port, and the covering area of ​​the cover is larger than the opening area of ​​the dust removal port.

11. The cleaning robot according to claim 10, characterized in that, The cleaning robot also includes a sealing ring, which is located at the connection between the dust extraction pipe and the dust extraction port.

12. A cleaning system, characterized in that, The cleaning system includes a base station and a cleaning robot as described in any one of claims 1 to 11. The base station is equipped with a management library for storing the cleaning robot. The base station also includes a dust collection bag and a dust collection pump. The dust collection pump is connected to the dust collection bag. The management library is also equipped with a suction port connected to the dust collection bag. The cleaning robot is placed in the management library, and the dust removal port of the cleaning robot is connected to the suction port of the base station.

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