cleaning robots

Abstract

The present invention relates to the field of cleaning equipment and discloses a cleaning robot. The cleaning robot includes a robot body, a storage box, a cleaning roller, and a scraper bar. The scraper bar is mounted on the bottom of the robot body and disposed near the cleaning roller. When the cleaning robot lands, the scraper bar contacts the ground. A nearly enclosed space is formed between the scraper bar, the cleaning roller, and the robot body. As the cleaning robot moves toward the side of the cleaning roller facing away from the scraper bar, the scraper bar forms a shield behind the cleaning roller, which can prevent outside air from entering the aforementioned space, thereby enhancing the negative pressure adsorption effect of the cleaning robot on ground dirt.

Description

[0001] This invention claims priority to the prior application with application number 202020705201.2, filed with the State Intellectual Property Office of China on April 30, 2020, entitled “Storage Box and Cleaning Robot”. The contents of the above-mentioned prior application are incorporated into this text by introduction.

Technical field

[0002] The present invention relates to the technical field of cleaning equipment, and in particular to a cleaning robot. [Background Technology]

[0003] A cleaning robot is a device equipped with an artificial intelligence system that can automatically clean floors in a room. On the one hand, cleaning robots reduce the workload of users, and on the other hand, the cleaning robot itself has a certain entertainment value. It can enrich the user's spiritual life to a certain extent, which is why cleaning robots are very popular among users.

[0004] Typically, a cleaning robot consists of a robot body, a cleaning roller, and a fan assembly, which is connected to the cleaning roller via a suction channel. As the cleaning robot moves, the cleaning roller comes into contact with the ground. Because there's nothing behind the cleaning roller, air behind it enters the suction channel through the gap between the cleaning roller and the robot body, reducing the fan assembly's ability to absorb dirt from the ground. [Summary of the invention]

[0005] The present invention aims to provide a cleaning robot to improve the cleaning robot's adsorption effect on ground dirt.

[0006] The present invention solves its technical problems by adopting the following technical solutions:

[0007] A cleaning robot comprising:

[0008] The robot body is provided with a first groove;

[0009] a storage box received in the first groove, the storage box comprising a box body, the box body being provided with an air outlet channel, a storage cavity, and an air suction channel connected in sequence, the storage cavity being used to receive dirt sucked in through the air suction channel;

[0010] A cleaning roller is mounted on the robot body and is disposed below the storage box, the bottom wall of the first groove is provided with a through-hole at a position corresponding to the cleaning roller, and the air suction channel is located above the cleaning roller; and

[0011] A scraping bar is installed at the bottom of the robot body and is arranged close to the cleaning roller. When the cleaning robot lands, the scraping bar contacts the ground.

[0012] Furthermore, the air suction channel has a first external port and a first internal port, the first external port is connected to the external environment of the box and is arranged above the cleaning roller, the first internal port is connected to the storage cavity, and the air outlet channel has a second internal port and a second external port, the second internal port is connected to the storage cavity, and the second external port is connected to the outside of the box.

[0013] Further, at least a portion of the scraper bar contacts the cleaning roller.

[0014] Furthermore, the bottom wall of the box body is at least partially concave to form a receiving groove, and the cleaning roller is at least partially received in the receiving groove; the first external port is provided on the groove wall of the receiving groove.

[0015] Furthermore, a groove wall of the receiving groove has an arc-shaped cross section perpendicular to the extending direction of the cleaning roller.

[0016] Furthermore, the receiving groove has a first side and a second side extending along the set direction, the first side is arranged to extend relative to the second side, and the first side is arranged close to the scraper strip.

[0017] Furthermore, the cleaning robot also includes a sealing ring, which is arranged on the periphery of the receiving groove and is in a closed shape; the first groove has a mounting surface corresponding to the sealing ring, and the sealing ring abuts against the mounting surface of the first groove.

[0018] Furthermore, the cleaning robot also includes a roller handle, which can be rotatably installed on one end of the cleaning roller. A first sealing rubber ring is provided at one end of the roller handle, and a slot is provided on the side wall of the first groove. The slot passes through part of the mounting surface, and the end is inserted into the slot. The first sealing rubber ring seals the mounting connection between the end and the slot.

[0019] Furthermore, the first sealing rubber ring has a splicing surface, the splicing surface is spliced and connected to the mounting surface, and the sealing ring abuts against the splicing surface.

[0020] Furthermore, the cleaning robot also includes a roller power assembly installed in the robot body; the roller power assembly includes an output terminal, an output ring wall arranged around the outer periphery of the output terminal, and a second sealing rubber ring arranged on the output ring wall, the output terminal extends into the first groove and is connected to the cleaning roller, the roller power assembly is used to drive the cleaning roller to rotate, and the second sealing rubber ring is used to seal the connection between the output terminal and the robot body.

[0021] Furthermore, the storage box further includes:

[0022] a cover plate assembly, comprising a cover plate and a partition plate, the cover plate being received in the receiving cavity and movable between a sealing position and an unsealing position, wherein in the sealing position, the cover plate seals the first inner port and the second inner port, and in the unsealing position, the cover plate unseales the first inner port and the second inner port, the partition plate being fixed to the cover plate and at least partially located between the first inner port and the second inner port; and

[0023] A cover plate driving assembly is installed on the box body, and the cover plate driving assembly is used to drive the cover plate to move from the sealing position to the unsealing position.

[0024] Furthermore, the cleaning robot further includes a fan assembly, and an air inlet of the fan assembly is sealed and connected to the second external port.

[0025] Furthermore, the cross-sectional profile of the air suction channel gradually shrinks from the first outer port to the first inner port.

[0026] The beneficial effects of the present invention are:

[0027] The cleaning robot provided by the present invention includes a robot body, a storage box, a cleaning roller, and a scraper. The scraper is mounted on the bottom of the robot body and positioned near the cleaning roller. When the cleaning robot lands, the scraper contacts the ground. A nearly enclosed space is formed between the scraper, the cleaning roller, and the robot body. As the cleaning robot moves toward the side of the cleaning roller facing away from the scraper, the scraper forms a barrier behind the cleaning roller, preventing outside air from entering the space and thereby enhancing the cleaning robot's negative pressure absorption effect on floor dirt.

Brief Description of the Drawings

[0028] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0029] Figure 1 A three-dimensional schematic diagram of a cleaning robot provided in one embodiment of the present invention in one direction;

[0030] Figure 2 for Figure 1 A three-dimensional schematic diagram of the cleaning robot in another direction;

[0031] Figure 3 for Figure 1 Schematic diagram of the cleaning robot with its cover opened;

[0032] Figure 4 for Figure 1A cross-sectional view of the cleaning robot in one direction;

[0033] Figure 5 for Figure 3 A three-dimensional schematic diagram of the storage box in one direction with the lid open;

[0034] Figure 6 for Figure 3 A three-dimensional schematic diagram of the storage box in another direction with the lid open;

[0035] Figure 7 for Figure 3 A three-dimensional schematic diagram of the storage box in one direction with the lid closed;

[0036] Figure 8 for Figure 3 A cross-sectional view of the storage box in one direction;

[0037] Figure 9 for Figure 3 A cross-sectional view of the storage box in another direction;

[0038] Figure 10 for Figure 8 A partial enlarged schematic diagram of point A in the middle;

[0039] Figure 11 for Figure 4 Schematic diagram of the middle cleaning roller;

[0040] Figure 12 for Figure 1 A three-dimensional diagram of the cleaning robot with its storage box, liquid tank, and part of its shell hidden;

[0041] Figure 13 for Figure 12 Partial exploded diagram of the middle roller power assembly;

[0042] Figure 14 for Figure 6 A partial enlarged schematic diagram of point B in the middle;

[0043] Figure 15 for Figure 4 A partial enlarged schematic diagram of point C in the middle. [Specific implementation method]

[0044] In order to facilitate the understanding of the present invention, the present invention is described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" / "fixed to" / "installed on" another element, it can be directly on the other element, or one or more intermediate elements can exist therebetween. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements can exist therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

[0045] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0046] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0047] In this specification, the term "installation" includes fixing or restricting a component or device to a specific position or place by welding, screwing, clamping, gluing, etc. The component or device may remain stationary at the specific position or place or may move within a limited range. After being fixed or restricted to a specific position or place, the component or device may or may not be disassembled, which is not limited in the embodiments of the present invention.

[0048] Please see first Figures 1 to 4, which shows a three-dimensional schematic diagram of a cleaning robot provided by one embodiment of the present invention in two directions, a schematic diagram of the cleaning robot in a flip-open state, and a cross-sectional view of the cleaning robot in one direction. The cleaning robot 1 includes a robot body 100, a storage box 200, a cleaning roller 300, a roller power assembly, a liquid storage tank 500, a liquid supply mechanism (not shown in the figure) and a driving wheel assembly 600. Among them, the robot body 100 is used to carry and install the above-mentioned structures. The storage box 200 is used to store dirt. The cleaning roller 300 is arranged below the storage box 200, and the roller power assembly is used to drive the cleaning roller 300 to rotate so that the cleaning roller 200 cleans the ground and sweeps the dirt on the ground into the inside of the storage box 200. The liquid storage tank 500 is used to store cleaning liquid, which applies the cleaning liquid to the above-mentioned cleaning roller 300 through the liquid supply mechanism to wet the cleaning roller 300, thereby facilitating the cleaning roller 300 to perform floor scrubbing operations on the ground. The drive wheel assembly 600 is mounted on the bottom of the robot body 100 and is used to drive the cleaning robot 1 forward, backward, or turn. It is worth noting that the "dirt" mentioned in this embodiment includes but is not limited to sewage, ground debris, dust, dirt, and hair generated during the cleaning process of the floor cleaning robot 1, and the "cleaning liquid" mentioned includes but is not limited to clean water, detergent, and combinations thereof.

[0049] For the robot body 100, please refer to Figure 3The robot body 100 includes a housing 110, a first flip cover 120, and a second flip cover 130. The top of the housing 110 is provided with a first groove 101 and a second groove 102. The first groove 101 conforms to the shape of the storage box 200 and is used to accommodate the storage box 200; the second groove 102 conforms to the shape of the liquid storage tank 500 and is used to accommodate the liquid storage tank 500. The first flip cover 120 is used to open and close the opening of the first groove 101. One end of the first flip cover is rotatably connected to the housing 110, and the other end is fixedly engaged with the housing 110. Specifically, the first flip cover 120 is provided with a first clamping portion at one end away from the end at which it is rotatably connected to the shell 110, and a second clamping portion is provided at a corresponding position on the shell 110. When the first clamping portion and the second clamping portion cooperate, the first flip cover 120 closes the above-mentioned opening; when the first clamping portion and the second clamping portion are separated, the first flip cover 120 opens the above-mentioned opening, and the user can take the storage box 200 out of the first groove 101. Similarly, the second flip cover 130 is used to open and close the opening of the second recess 102. One end of the second flip cover 130 is rotatably connected to the housing 110, and the other end is fixedly engaged with the housing 110. A third engaging portion is provided on the second flip cover 130, away from the end at which it is rotatably connected to the housing 110, and a fourth engaging portion is provided on the housing 110 at a corresponding position. When the third engaging portion engages with the fourth engaging portion, the second flip cover 130 closes the opening. When the third engaging portion is separated from the fourth engaging portion, the second flip cover 130 opens the opening, allowing the user to remove the liquid storage tank 500 from the second recess 102. Optionally, the first flip cover 120 and the second flip cover 130 open in opposite directions, and during their opening, the first flip cover 120 and the second flip cover 130 gradually move closer to the center of the top of the housing 110.

[0050] For the above storage box 200, please refer to Figures 5 to 7, which respectively shows a three-dimensional schematic diagram of the storage box 200 in two directions with the box lid open, and a three-dimensional schematic diagram of the storage box 200 in one direction with the box lid closed. The storage box 200 includes a box body 210, a cover assembly 220, a cover drive assembly 230 and a locking assembly 240. Among them, the box body 210 is provided with a storage cavity 201 inside, and the storage cavity 201 is used to store dirt. The box body 210 is also provided with an air suction channel 202 and an air outlet channel 203, wherein the air suction channel 202 is respectively connected to the external environment of the box body 210 and the above-mentioned storage cavity 201, and the air outlet channel 203 is respectively connected to the storage cavity 201 and the external environment of the box body 210. The cover assembly 220 is housed in the storage chamber 201, and can move between a sealing position and an unsealing position, wherein, in the sealing position, it seals the air suction channel 202 and the air outlet channel 203, and in the unsealing position, it unseales the air suction channel 202 and the air outlet channel 203. The cover driving assembly 230 is used to drive the cover assembly 220 to move from the sealing position to the unsealing position. The locking assembly 240 is respectively connected to the cover assembly 220 and the box body 210, and is used to maintain the cover assembly 220 in the sealing position. For ease of understanding, the specific structures of the box body 210, the cover assembly 220, the cover driving assembly 230 and the locking assembly 240 are described in detail below. Next, the specific structure of the box body 210 is first described in detail.

[0051] For the above-mentioned box 210, please refer to Figure 5 and Figure 6 The box body 210 includes a box 211 and a box cover 212. The box 211 is a box-shaped structure without a top, which includes a bottom wall 2111 and side walls 2112 extending from the edge of the bottom wall 2111. The box cover 212 is arranged to cover the opening of the box 211 and together with the box 211, enclose the above-mentioned storage cavity 201, that is, the bottom wall 2111 constitutes the bottom wall of the box body 210, the side walls 2112 constitute the side walls of the box body 210, and the box cover 212 constitutes the top wall of the box body 210. In this embodiment, the box cover 212 is provided with a first connecting portion 2121 and a second connecting portion 2122. The first connecting portion 2121 is rotatably connected to the box 211, and the second connecting portion 2122 is connected to the box 211 by a buckle, so that the box cover 212 is tightly covered on the box 211. The user can open the storage cavity 201 by separating the second connection portion 2122 from the box 211, thereby cleaning the dirt inside the storage cavity 201. Optionally, the box cover 212 is in the shape of a flat rectangular parallelepiped, and the first connection portion 2121 and the second connection portion 2122 are respectively disposed on two opposite sides of the box cover 212; it is understood that in other embodiments of the present invention, the first connection portion 2121 and the second connection portion 2122 may also be disposed on two adjacent sides of the box cover 212.

[0052] Furthermore, to enhance the sealing effect between the box cover 212 and the box box 211, thereby preventing the sewage in the storage chamber 201 from overflowing from the connection between the box cover 212 and the box box 211, the storage box 200 further includes a box body sealing ring 213, which is disposed at the connection between the box cover 212 and the box box 211 and seals the connection. It should be noted that the box body sealing ring 213 can be a sealing rubber ring or a sealing layer formed by a sealing glue, such as UV curing glue.

[0053] For details, please refer to Figure 5 The cover 212 has a mounting groove 2123 formed on the side facing the box 211 that matches the top of the box 211. The top of the box 211 is inserted into the mounting groove 2123, and the box body sealing ring 213 is embedded between the top of the box 211 and the groove wall of the mounting groove 2123. In this embodiment, the box body sealing ring 213 is fixed to the top surface of the box 211, that is, the side facing the cover 212, and extends along the contour of the top surface of the box 211 to form a closed ring. When the cover 212 is placed on the box 211, the box body sealing ring 213 seals the connection between the two. It can be understood that the setting position of the box body sealing ring 213 is not limited to the top surface of the box 211, and it can also be set at other positions, as long as it can seal the connection between the box 211 and the box cover 212; for example, in some other embodiments of the present invention, the box body sealing ring 213 is fixed to the outer surface of the top of the box 211, and extends along the contour of the top surface of the box 211 to form a closed ring; for example, in some other embodiments of the present invention, the box body sealing ring 213 is fixed to the inner surface of the top of the box 211, and extends along the contour of the top surface of the box 211 to form a closed ring; for example, in some other embodiments of the present invention, the box body sealing ring 213 is fixed to the groove wall of the above-mentioned mounting groove 2123, and extends along the contour of the top surface of the box 211 to form a closed ring.

[0054] Please combine Figure 6 and Figure 7The housing 210 is further provided with an air suction channel 202 and an air outlet channel 203. The air suction channel 202 has a first external port 2022 and a first internal port 2021. The first external port 2022 penetrates the bottom wall 2111 of the housing 211 and communicates with the external environment. The first external port 2022 serves as the suction port for the housing 210 during the process of collecting dirt and corresponds to the cleaning roller 300. The first internal port 2021 is located between the bottom wall 211 and the housing cover 212 of the housing 211 and communicates with the storage chamber 201. The air outlet channel 203 has a second internal port 2031 and a second external port 2032. The second internal port 2031 is located between the bottom wall 2111 and the housing cover 212 of the housing 211 and communicates with the storage chamber 201. The second external port 2032 communicates with the external environment and serves as the outlet for the airflow within the storage chamber 201. In this embodiment, the box 211 is formed with an air suction portion 2113 and an air outlet portion 2114 that are accommodated in the storage cavity 201. The air suction portion 2113 is fixed to the bottom wall of the box 211. One end of the air suction channel 202 passes through the end of the air suction portion 2113 away from the bottom wall 2111 to form the above-mentioned first inner port 2021, and the other end passes through the bottom wall 2111 to form the first outer port 2022. The air outlet portion 2114 is also fixed to the bottom wall 2111 of the box 211. One end of the air outlet channel 203 passes through the end of the air outlet portion 2114 away from the bottom wall 2111 to form a second inner port 2031, and the other end passes through the bottom wall 2111 to form a second outer port 2032. Optionally, the second inner port 2031 includes a plurality of small-sized ventilation holes to allow airflow while preventing larger dirt from passing through. Further optionally, the first inner port 2021 and the second inner port 2031 both protrude from the bottom wall 2111 of the box 211 and are arranged flush. Preferably, the cross-sectional profile of the air suction channel 202 gradually shrinks from the first outer port 2022 to the first inner port 2021; then the air suction channel 202 will be arranged at an obtuse angle relative to the bottom wall of the box 210 near the first outer port, which can, to a certain extent, make the air flow more smoothly enter the air suction channel 202 from the outside of the box 210, reducing the air volume loss caused by excessive turning (i.e., too large an angle) of the air flow. In addition, the specific location of the second outer port 2032 depends on the layout of the internal components of the robot body 100; in other embodiments of the present invention, the second outer port 2032 can also be arranged on the side wall 2112 of the box 211.

[0055] Next, the cover plate assembly 220 will be described in detail.

[0056] For details about the cover plate assembly 220, please refer to Figure 5 and Figure 6, and in conjunction with other drawings, the cover assembly 220 includes a cover 221, which is a flat plate structure and is accommodated in the storage cavity 201. The cover 221 can move between a sealing position and an unsealing position to seal or unseal the above-mentioned air intake channel 202 and the air outlet channel 203. Specifically, in conjunction with Figure 12 The cleaning robot 1 also includes a fan assembly 700, whose air inlet 710 is connected to the above-mentioned second external port 2032. Preferably, a sealing ring is provided at the connection between the second external port 2032 and the air inlet 710 to prevent air leakage; in the sealing position, the cover 221 entirely covers and seals the first internal port 2021 and the second internal port 2031. At this time, the sewage in the storage chamber 201 will not overflow to the outside of the box body 210 through the suction channel 202 and the air outlet channel 203, thereby avoiding safety accidents caused by sewage overflow; in the unsealing position, the cover 221 unseals the first internal port 2021 and the second internal port 2031, and the fan assembly 700 can exhaust the box body 210 to make the first external port 2022 in a negative pressure state, which is convenient for sucking dirt on the ground and the cleaning roller 300.

[0057] In this embodiment, the cover plate 221 is rotatably connected to the box body 210, that is, the cover plate 221 can rotate between a sealing position and an unsealing position. Specifically, the bottom wall and side wall portions of the box 211 are recessed to form a boss 2115. One end of the cover plate 221 is rotatably connected to the upper surface of the boss 2115, and the other end can pivot around the boss to seal or unseal the first inner port 2021 and the second inner port 2031. Optionally, the direction from the first inner port 2021 to the second inner port 2031 is parallel to the rotation axis X of the cover plate 221. In this way, the free end of the cover plate 221 can move up and down in the direction shown in the figure to simultaneously seal or unseal the first inner port 2021 and the second inner port 2031. It will be understood that in other embodiments of the present invention, the cover plate 221 can also be designed to rotate about the Y axis, Z axis, or other directions shown in the figure. Preferably, the first inner port 2021 is flush with the second inner port 2031. Thus, when the cover plate 221 is in the sealing position, one end of the cover plate 221 is supported by the boss 2115, and the other end is supported by the first inner port 2021 and the second inner port 2031. Preferably, to enhance the sealing effect of the cover plate 221 on the first inner port 2021 and the second inner port 2031, an elastic sealing member (not shown), such as a rubber sheet or a sealing ring, is fixedly provided on one end of the cover plate 221 facing the first inner port 2021 and the second inner port 2031 to seal the connection between the cover plate 221 and the first inner port 2021 and the second inner port 2031, respectively. It is understandable that in other embodiments of the present invention, the cover 221 can also be connected to the box body 210 in other ways, such as a sliding connection. It only needs to ensure that it can move back and forth between the sealing position and the unsealing position to seal or unseal the suction channel 202 and the air outlet channel 203, and is not limited to the rotational connection in this embodiment.

[0058] Furthermore, in order to prevent sewage, garbage and other dirt that enter the storage chamber 201 from the suction channel 202 from directly entering the air outlet channel 203 during the process of the fan assembly 700 exhausting the storage box 200, and moving to the inside of the robot body 100 through the second external port 2032, thereby causing a safety accident to the floor cleaning robot 1, the above-mentioned cover assembly 220 also includes a partition 222. Specifically, please continue to refer to Figure 5, and in conjunction with other figures, one end of the partition 222 is fixed to the cover plate 221, and the other end extends to the bottom wall 2111 of the box 211. The partition 222 is at least partially located between the first inner port 2021 and the second inner port 2031; then the sewage, garbage and other dirt entering the storage chamber 201 from the air suction channel 202 will fall into the bottom of the storage chamber 201 under the blocking effect of the partition 222, and the air flow will pass over the edge (such as the bottom and side) of the partition 222 and flow to the fan assembly 700 through the air outlet channel 203. It is worth mentioning that in addition to blocking the dirt, the partition 222 can also accelerate the flow of air in the storage chamber 201, thereby strengthening the adsorption force of the storage box 200 on the dirt on the ground and the dirt on the cleaning roller. Preferably, the air outlet channel 203 is also provided with a filter element for preventing dirt from passing through, while allowing air flow to pass through, preferably a filter cotton.

[0059] Next, the cover driving assembly 230 is described in detail.

[0060] For the cover drive assembly 230, see Figure 5 , and in conjunction with other drawings, the cover driving assembly 230 is installed in the box box 211 of the box body, which is used to drive the cover 221 to move from the sealing position (not shown in the figure) to Figure 5The unsealed position is shown. Specifically, the cover drive assembly 230 includes a push rod 231 and a sealing member 232. The push rod 231 is disposed below the cover 221, with its other end extending through the bottom wall of the box body and extending out of the box body. The push rod 231 is movable relative to the box body and moves between a first position and a second position. In the first position, the cover 221 is in a sealed position, i.e., the free end of the cover 221 is supported by the first inner port 2021 and the second inner port 2031. In the second position, the push rod 231 pushes the cover 221 to the unsealed position. In the second position, the push rod 231 is closer to the top wall of the box body 210 than in the first position. In this embodiment, the box body 210 is formed with a through-boss 2115 and a bottom wall 2111 of the box 211, and a through hole (not shown in the figure) that is connected to the storage chamber 201. The push rod 231 is provided in the through hole and can at least partially pass through the through hole to move between the first position and the second position, thereby pushing the cover plate 221. It is understandable that the installation method of the push rod 231 is not limited to the above method. For example, in some other embodiments of the present invention, it can also be rotatably installed on the box body 210 and ensure that it can push the cover plate 221 to the unsealing position. It is worth mentioning that the process of the cover plate 221 moving from the unsealing position to the sealing position can be reset under the action of gravity; it can also be reset by being pulled by the push rod 231. At this time, the push rod 231 and the cover plate 221 are actually connected. The present invention does not specifically limit how the cover plate 221 is reset. A seal 232 is embedded between the outer wall of the push rod 231 and the inner wall of the through hole, sealing the connection between the push rod 231 and the housing 210 to prevent sewage from overflowing from this connection. In other embodiments of the present invention, the push rod 231 can also be positioned on the side of the first inner port (or second inner port) facing away from the boss 2115. However, positioning the push rod 231 between the connecting end of the cover plate 221 (the end where the cover plate connects to the housing, hereinafter referred to as the connecting end) and the first inner port 2021 (or second inner port) allows the push rod 231 to push the cover plate 221 to a greater angle with a smaller pushing distance. Therefore, in this embodiment, the push rod 231 is preferably positioned between the boss 2115, i.e., between the connecting end and the first inner port 2021. Preferably, positioning the push rod 231 closer to the connecting end of the cover plate improves its ability to lift the other end of the cover plate 221. In addition, it is worth mentioning that the above-mentioned through hole passes through the boss 2115 and the bottom wall of the box body 210. Since in this embodiment, the boss 2115 is formed by the concave bottom wall of the box body 211, in this embodiment, the through hole actually passes through the bottom wall of the box body 210; of course, in other embodiments of the present invention, the boss 2115 may not be formed by the concave bottom wall of the box body 210, but may be a solid structure. In this case, the boss 2115 and the bottom wall of the box body 210 are independent of each other, and the above-mentioned through hole actually passes through the boss 2115 and the bottom wall of the box body 210 respectively.

[0061] In this embodiment, the cleaning robot 1 drives the push rod 231 from the first position to the second position through the driving wheel assembly 600. For ease of understanding, the specific structure of the driving wheel assembly 600 is first described below. Figure 4 , and in conjunction with other drawings, the driving wheel assembly 600 includes a wheel arm 610, which is rotatably mounted on the robot body 100 and at least partially extends out of the bottom of the robot body 100. Specifically, the wheel arm 610 includes a base arm 611 and a driving wheel 612 rotatably mounted on the base arm 611. Among them, the end of the base arm 611 away from the driving wheel 612 is rotatably mounted inside the robot body 100 via a rotating shaft, and the two ends of a tension spring (not shown) are respectively connected to the base arm 611 and the robot body 100, so that the wheel arm 610 can remain stable relative to the robot body 100 when at rest. The bottom of the robot body 100 is arranged to avoid air at the position corresponding to the driving wheel 612, so that the bottom of the driving wheel 612 can at least partially extend out of the robot body 100. When the cleaning robot 1 lands on the ground, the free end of the wheel arm 610 rotates clockwise as shown in the figure relative to the robot body 100, that is, the robot body 100 sinks a set distance relative to the free end of the wheel arm 610; on the contrary, when the cleaning robot 1 leaves the ground, the free end of the wheel arm 610 rotates counterclockwise as shown in the figure relative to the robot body 100, that is, the robot body 100 is lifted up a set distance relative to the free end of the wheel arm 610.

[0062] The free end of the wheel arm 610 is provided with a protrusion 613, which is specifically disposed on the base arm 611. This protrusion 613 can be positioned between a disengaged position and an engaged position as the wheel arm 610 moves. In the disengaged position, the push rod 231 is in the first position described above. In the engaged position, the protrusion 613 actuates the bottom of the push rod 231, thereby driving the push rod 231 to the second position. When the protrusion 613 is in the disengaged position, the wheel arm 610 extends further from the bottom of the robot body 100 than when the protrusion 613 is in the engaged position.

[0063] Furthermore, to facilitate the installation of the wheel arm 610, the drive wheel assembly 600 also includes a wheel bracket 620. The wheel bracket 620 is fixed to the interior of the housing 110 and accommodates the base arm 611 and the top portion of the drive wheel 612 to prevent the rotation of the drive wheel 612 from interfering with the wiring, piping, etc. within the robot body 100. One end of the wheel arm 610 is rotatably mounted to the wheel bracket 620. The wheel bracket 620 is provided with a clearance portion for the protrusion 613 to pass through, so that the protrusion 613 can move with the wheel arm 610 to have the aforementioned engaged and disengaged positions.

[0064] Furthermore, considering that there is a certain gap between the wheel arm 610 and the push rod 231, if the protrusion 613 directly contacts and pushes the push rod 231, the protrusion 613 needs to be designed to be long enough, which will make the disassembly and installation of the driving wheel assembly 600 extremely difficult. To overcome this defect, the cover driving assembly 230 further includes a rotating member 233. For details, please continue to refer to Figure 4 The rotating member 233 is a plate-shaped structure disposed below the push rod 231 and the through hole. One end of the rotating member 233 is rotatably mounted in the robot body 100, and the other end is supported by the protrusion 613. When the protrusion 613 is in the engaged position, the protrusion 613 drives the rotating member 233 to rotate, thereby pushing the push rod 231 to the second position, thereby driving the cover 221 to move to the unsealing position. It is worth mentioning that the present invention does not specifically limit the connection relationship between the push rod 231 and the rotating member 233 and the protrusion 613 when the push rod 231 is in the first position; when the push rod 231 is in the first position, the push rod 231 can be supported by the box body 210, such as the boss 2115 is formed with a supporting groove, and the outer wall of the push rod 231 is formed with a supporting flange, and the flange is supported on the supporting groove. At this time, the push rod 231 and the rotating member 233 can have or not a connection relationship; the push rod 231 can also be supported by the above-mentioned sealing member 232. At this time, the push rod 231 and the rotating member 233 can have or not a connection relationship; the push rod 231 can also be supported by the rotating member 233. In this case, there is always a physical connection relationship between the push rod 231 and the rotating member 233, such as abutment, hinged, sliding connection, etc.

[0065] Next, the locking assembly 240 will be described in detail.

[0066] For the above locking assembly 240, please combine Figure 5 and Figure 6, the locking assembly 240 is connected to the cover assembly 220 and the box body 210 at the same time, and is used to maintain the cover plate 221 in the above-mentioned sealing position. In this embodiment, the locking assembly 240 includes a first magnetic component 241 and a second magnetic component 242. Among them, the first magnetic component 241 is installed on the cover plate 221, and the second magnetic component 242 is installed on the box body 210 and is arranged near the first inner port 2021 or the second inner port 2031; the first magnetic component 241 and the second magnetic component 242 are used to adsorb each other to maintain the cover plate 221 in the sealing position. Of course, the above-mentioned first magnetic component 241 can also be arranged on the partition 222. In addition, it should be understood that in other embodiments of the present invention, the locking assembly 240 can also be of other structural forms, as long as it can maintain the cover plate 221 in the sealed position; for example, in some other embodiments of the present invention, the locking assembly 240 includes a compression spring, which is arranged between the cover plate 221 and the top wall of the box body 210, one end of which abuts against the cover plate 221, and the other end abuts against the top wall of the box body 210; for another example, in some other embodiments of the present invention, the locking assembly 240 includes a torsion spring, which is sleeved on the connecting rod of the pivotal cover plate 221. On the pivot of the connecting end and the box body 210, one end thereof abuts against the cover plate 221, and the other end abuts against the box body 210; for example, in some other embodiments of the present invention, the locking assembly 240 may also include the above-mentioned paired first magnetic member 241 and second magnetic member 242, at least two of the compression spring and the torsion spring, so as to enhance the resetting effect of the cover plate 221 in the process of moving from the unsealing position to the sealing position, so as to overcome the deficiency that in some cases the cover plate 221 cannot be smoothly reset to the sealing position due to the push rod 231 being stuck during the downward process.

[0067] For the above cleaning roller 300, see Figure 11 , which shows a schematic diagram of the cleaning roller 300, and combined with Figures 4 to 6 The cleaning roller 300 is mounted on the housing 110, which is located below the storage box 200. The bottom wall of the first groove 101 is provided with a through-hole escape groove at a position corresponding to the cleaning roller 300. The cleaning roller 300 at least partially passes through the escape groove and extends into the first groove 101. The bottom wall 2111 of the box body 210 is at least partially concave to form a receiving groove 204 extending along a set direction P. The top of the circumferential surface of the cleaning roller 300 is received in the receiving groove 204 and is arranged close to the groove wall of the receiving groove 204. Optionally, the set direction P is parallel to the axial direction of the cleaning roller 300; preferably, the groove wall of the receiving groove 204 is arc-shaped in a cross section perpendicular to the set direction P, and the circumferential surface of the cleaning roller 300 is in contact with the groove wall of the receiving groove 204. In this embodiment, the cleaning roller 300 includes a rotating shaft 310 and a flannel 320 sleeved on the rotating shaft 310 ; wherein the rotating shaft 310 is rotatably mounted on the robot body 100 .

[0068] For the above roller power assemblies, see Figure 12 and Figure 13 , which respectively shows a three-dimensional schematic diagram of the cleaning robot 1 after concealing the storage box 200, liquid storage tank 500, part of the shell 110 and other structures, as well as a partially exploded schematic diagram of the roller power assembly 400. The roller power assembly 400 includes a base 410, a rotation mechanism 420, and an output terminal 430. The base 410 is installed in the robot body 100 and is used to install the rotation mechanism 420; the rotation mechanism 420 is used to provide rotational output through an output shaft (not shown in the figure); the output terminal 430 is fixed to the output shaft and is used to engage with a mating portion (not shown in the figure) on the end of the rotating shaft 310 of the cleaning roller 300 that is compatible with the output terminal 430 to achieve circumferential fixation, thereby driving the cleaning roller 300 to rotate, thereby cleaning the floor. In this embodiment, the output terminal 430 is in the shape of a "cross", and the mating portion on the rotating shaft 310 is a "cross"-shaped groove.

[0069] Furthermore, in order to facilitate the user to remove and install the cleaning roller 300 without having to directly contact the cleaning roller 300 with his hands, the cleaning robot 1 also includes a roller handle 330. For details, please refer to Figure 11 and Figure 12 In conjunction with other figures, the roller handle 330 is located at the end of the cleaning roller 300 away from the output terminal 430 and is fixedly engaged with the robot body 100. The end of the cleaning roller 300 away from the output terminal 430 is rotatably mounted on the roller handle 330 via a bearing 340. Therefore, when removing and installing the cleaning roller 300, the user only needs to use the roller handle 330, avoiding the inconvenience of contacting dirty water on the cleaning roller 300.

[0070] Furthermore, in order to improve the sealing performance of the air passage of the cleaning robot 1 and thus enhance the adsorption effect of the cleaning robot 1 on the dirt on the ground, the storage box 200 further includes a sealing ring 250. In addition, the cleaning robot 1 also includes a plurality of sealing rubber rings 350. For details, please refer to Figure 7 The sealing ring 250 is provided at the periphery of the receiving groove 204 and is in a closed shape. The first groove 101 has a mounting surface corresponding to the sealing ring 250. When the storage box 200 is received in the first groove 101, the sealing ring 250 abuts against the mounting surface of the first groove 101, achieving a sealed connection between the periphery of the receiving groove 204 of the storage box 200 and the mounting portion of the first groove 101, thereby preventing external air from entering the receiving groove 204 through the gap at the contact point between the storage box 200 and the mounting surface of the first groove 101. In other words, it can prevent the wind force provided by the fan assembly 700 from being dispersed to absorb objects in the first groove 101, thereby improving the cleaning robot 1's ability to absorb dirt on the ground.

[0071] Specifically, the sealing ring 250 has a first side rubber segment, a second side rubber segment, and two arc-shaped rubber segments connecting the ends of the first and second side rubber segments, respectively, around the periphery of the corresponding receiving groove 204. Correspondingly, the mounting surface of the first groove 101 has a first side bearing surface, a second side bearing surface, and two arc-shaped bearing surfaces connecting the ends of the first and second side bearing surfaces. The first side rubber segment bears and abuts against the first side bearing surface, the second side rubber segment bears and abuts against the second side bearing surface, and the two arc-shaped rubber segments bear and abut against the two arc-shaped bearing surfaces, respectively, thereby ensuring airtightness around the receiving groove 204 and improving the suction force of the suction channel on the receiving groove 204.

[0072] The plurality of sealing rubber rings 350 include a first sealing rubber ring 351 and a second sealing rubber ring 352 .

[0073] In order to install the roller handle 330 in the first groove 101, a slot is provided on the side wall of the first groove 101, and the slot penetrates part of the installation surface, that is, the slot penetrates part of an arc-shaped bearing surface. In order to prevent the slot from destroying the airtightness, a first sealing rubber ring 351 is provided at one end of the roller handle 330, and the end is inserted into the slot, so that one end of the cleaning roller can be rotatably supported on the side wall of the first groove 101, wherein the first sealing rubber ring 351 seals the installation connection between the end and the slot, thereby ensuring airtightness by sealing the slot portion connected to the arc-shaped bearing surface.

[0074] Furthermore, the first sealing rubber ring 351 has a splicing surface, which is arranged in an arc shape, and the splicing surface and the arc-shaped bearing surface are spliced and connected to form a complete arc shape, and an arc-shaped rubber section of the sealing ring 250 is adapted to abut against the splicing surface, further improving the air tightness.

[0075] The other end of the roller handle 330 forms a handle portion. Figure 11 The handle allows the user to directly lift the end of the cleaning roller to remove the cleaning roller.

[0076] Furthermore, the roller handle 330 is in a V-shape as a whole, the first sealing rubber ring 351 is nested and covers the small end thereof, and the handle portion is provided at the large end thereof.

[0077] Please refer to Figure 13In conjunction with other figures, the second sealing rubber ring 352 is mounted on the base 410 of the roller power assembly 400. Specifically, the base 410 includes an output ring wall 411 surrounding the output terminal 430. The second sealing rubber ring 352 is sleeved onto this output ring wall 411. The output terminal 430 extends through the wall of the first groove 101 and into the first groove 101, connecting to the other end of the cleaning roller. The second sealing rubber ring 352 is used to seal the connection between the output terminal 430 and the robot body, preventing moisture from entering the robot body through the point where the output terminal 430 penetrates the groove wall. Furthermore, the output terminal 430 is located below an arc-shaped bearing surface to avoid affecting the airtightness around the receiving groove 204.

[0078] Of course, in other embodiments of the present invention, the second sealing rubber ring 352 can also be disposed below the storage box 200 and at least partially abut against the wall of the receiving groove 204, which can also prevent external air from entering the receiving groove 204 from the end of the receiving groove 204.

[0079] For the above mentioned tank 500, please refer to Figure 3 The liquid storage tank 500 is used to store cleaning liquid, which is applied to the cleaning roller 300 via a liquid supply mechanism (not shown). Specifically, a liquid storage chamber (not shown) is provided within the liquid storage chamber 500. The storage box 200 is provided with a first liquid channel and a liquid outlet that connects the first liquid channel to the external environment of the box body 210. The first liquid channel is isolated from the storage chamber 201. The liquid supply mechanism includes a liquid inlet end connected to the liquid storage chamber and a liquid outlet end connected to the first liquid channel. Cleaning liquid flowing out of the liquid storage chamber passes through the liquid inlet end of the liquid supply mechanism, the liquid outlet end of the liquid supply mechanism, the first liquid channel, and the liquid outlet, and then flows to the flannel 320 of the cleaning roller 300, wetting the flannel 320.

[0080] For the first liquid channel, please refer to Figures 8 to 10, which respectively shows a cross-sectional view of the storage box 200 from two directions and a partial enlarged schematic diagram of point A. In conjunction with other figures, the first liquid channel 205 is provided in the receiving tank 204. Along the forward direction of the cleaning robot 1, the first liquid channel 205 is located in front of the axis of the cleaning roller 300, while the first external port 2022 is located behind the axis of the cleaning roller 300. In this embodiment, the first liquid channel 205 is formed by an enclosure 260 and the wall of the receiving tank 204. Specifically, the wall of the receiving groove 204 is concave to form a strip-shaped groove structure extending axially along the cleaning roller 300. The enclosure 260 includes two opposing side portions 261 and a bottom portion 262 connecting the two side portions 261. The side portions 261 and the bottom portion 262 are both arranged axially along the cleaning roller 300. The end of the side portion 261 away from the bottom portion 262 extends into the strip-shaped groove structure and is fixed to the wall of the receiving groove 204, so that the enclosure 260 and the wall of the receiving groove 204 jointly form the first liquid channel 205. Optionally, the wall of the receiving groove 204 is provided with two opposing guide grooves 2041 within the strip-shaped groove structure. The guide grooves 2041 extend axially along the cleaning roller 300. Correspondingly, the end of the side portion 261 away from the bottom portion 262 is provided with guide bars 2611 adapted to the guide grooves 2041, with each guide bar 2611 correspondingly inserted into a guide groove 2041. The liquid outlet 206 is provided on the enclosure 260, which is respectively connected to the first liquid channel 205 and the receiving groove 204, so that the cleaning liquid in the first liquid channel 205 can enter the receiving groove 204 to wet the cleaning roller 300. In this embodiment, the liquid outlet 206 is provided on one of the two side portions 261 away from the air suction channel 202, that is, the liquid outlet 206 is provided on the side of the first liquid channel 205 away from the first external port 2022. Accordingly, the side portion 261 away from the air suction channel 202 is concave inwardly toward the other side portion 261, so that there is a gap between the side portion 261 away from the air suction channel 202 and the side wall of the receiving groove 204 for the cleaning liquid to pass through. It is worth mentioning that the liquid outlet 206 is provided on a side away from the air suction channel 202 in order to minimize the probability of the liquid outlet 206 being blocked by dirt on the cleaning roller 300. It is understood that in other embodiments of the present invention, the liquid outlet portion 206 can also be provided on the side portion 261 near the air suction channel 202, or on the bottom 262. Optionally, the liquid outlet portion 206 includes a plurality of liquid outlet holes, which are spaced apart along the direction in which the cleaning roller 300 extends; it is understood that in other embodiments of the present invention, the liquid outlet portion 206 can also be a narrow through groove or other structure. In addition, the above-mentioned first liquid channel 205 can also be formed as a hollow channel inside the bottom wall 2111 of the box body, or a pipe fixed to the groove wall of the receiving groove 204, as long as it is ensured to be isolated from the above-mentioned receiving cavity 201.

[0081] Optionally, to accommodate the layout of components within the housing 110, the receiving groove 204 has a first side 2042 and a second side 2043 extending axially along the cleaning roller 300 and at different heights. The first side 2042 and the second side 2043 are disposed opposite each other along the travel direction of the cleaning robot 1, with the first side 2042 extending relative to the second side 2043 and positioned proximate to the scraper bar. In the direction of travel of the cleaning robot 1, the first side 2042 is positioned behind the second side 2043. The first external port 2022 is positioned between the first side 2042 and directly above the axis of the cleaning roller 300, that is, between the first side 2042 and the top of the receiving groove 204. Because the first side 2042 is closer to the ground and the first external port 2022 is closer to the first side 2042, it is easier for dirt to climb from that side along the wall of the receiving groove 204 and into the suction channel 202. The first liquid channel 205 is disposed between the second side 2043 and the top of the receiving tank 204 . That is, the first external port 2022 is disposed between the first side 2042 and the first liquid channel 205 .

[0082] Furthermore, in order to allow as much dirt as possible on the circumferential surface of the cleaning roller 300 to be sucked into the storage chamber 201 and further reduce the probability of the liquid outlet 206 being blocked, the storage box 200 further includes a scraping portion. Figure 10 , and in conjunction with other drawings, the scraping and pressing portion 270 is fixed to the wall of the receiving groove 204, and is disposed near the first external port 2022 and located between the first external port 2022 and the first liquid channel 205. The scraping and pressing portion 270 is a protruding structure. When at least a portion of the cleaning roller 300 is accommodated in the receiving groove 204, it is at least partially embedded in the cleaning roller 300 to scrape off dirt on the cleaning roller 300, and the dirt is sucked into the receiving chamber 201 through the suction channel 202 under the adsorption action of the fan assembly 700. At the same time, the scraping and pressing portion 270 also serves to separate the first external port 2022 and the first liquid channel 205, thereby preventing dirt that is about to enter the suction channel 202 from passing over the scraping and pressing portion 270 and covering and blocking the liquid outlet 206.

[0083] Further, see Figure 6In conjunction with other figures, the storage box 200 further comprises a second liquid channel 207 located within and isolated from the storage cavity 201. The second liquid channel 207 comprises a liquid inlet 2071 and a liquid outlet 2072. The liquid inlet 2071 is provided on the housing 210 and is connected to the liquid supply mechanism, while the liquid outlet 2072 is connected to the first liquid channel 205. Cleaning liquid delivered from the liquid outlet of the liquid supply mechanism will sequentially flow through the second liquid channel 207, the first liquid channel 205, and the liquid outlet 206 toward the cleaning roller 300. Preferably, the second liquid channel 207 gradually moves away from the top wall of the housing 210 from the liquid inlet 2071 to the liquid outlet 2072. In this way, a height difference is formed between the liquid inlet 2071 and the first liquid channel 205. On the one hand, this setting can increase the flow rate of the cleaning liquid entering the first liquid channel 205, thereby increasing the distance the cleaning liquid travels along the first liquid channel 205, so that the cleaning roller 300 is wetted more evenly; on the other hand, this setting can also avoid water accumulation inside the second liquid channel 207.

[0084] Furthermore, in some embodiments, in order to facilitate the floor cleaning robot 1 to obtain the liquid level in the storage box 200 in a timely manner, and then guide the user to clean the dirt in time when the liquid level is high, the storage box 200 also includes a float and a first magnet installed on the float; accordingly, the above-mentioned shell 110 is provided with a Hall element module and a controller, and the Hall element module includes a first Hall element used in conjunction with the first magnet, and the controller is electrically connected to the first Hall element.

[0085] Specifically, see Figure 9 and Figure 6, and in conjunction with other drawings, the box body 210 is further provided with a guide groove 208, which extends from the bottom of the storage chamber 201 to the top of the storage chamber 201, and the guide groove 208 is connected to the storage chamber 201, so that the liquid level in the guide groove 208 can rise and fall together with the liquid level in the storage chamber 201. In this embodiment, the box body 210 is formed with an enclosing wall 2116 in the storage chamber 201, which starts from the bottom wall 211 of the box body and extends toward the top wall. The enclosing wall 2116, the bottom wall 2111, and the side walls 2112 of the box body together form the guide groove 208; and the enclosing wall 2116 is provided with a notch extending from the bottom of the storage chamber 201 to the top, the notch connecting the guide groove 208 and the storage chamber 201, so that the guide groove 208 and the storage chamber 201 are connected. The float 280 is housed in the guide groove 208 and can rise and fall with the liquid level in the guide groove 208 and the liquid level in the storage chamber 201, thereby driving the first magnet 281 mounted thereon to rise and fall together. Optionally, the float 280 is foam; it is understood that in other embodiments of the present invention, the float 280 can also be other plastics other than foam, or other materials with a density lower than that of sewage and that do not chemically react with sewage. Further optionally, the box 210 is also provided with a limiting structure (not shown in the figure), which is housed in the storage chamber 201 and is located at the top of the guide groove 208. It is used to prevent the float 280 from leaving the guide groove 208 from the top of the guide groove 208; in this embodiment, the limiting structure at least partially extends into the guide groove 208. The first Hall element (not shown in the figure) is installed on the shell 110 and is set near the top of the guide groove 208. It is used to cooperate with the first magnet 281 to detect whether the float 280 floats to a preset position; wherein the preset position is a position close to the top of the storage cavity 201. When the float 280 floats to the preset position, the first Hall element detects that it is in place, and then sends a signal to the controller. The controller performs relevant operations based on the signal to guide the user to clean up the dirt in time.

[0086] For further information, please refer back to Figure 3In conjunction with other figures, the robot body 100 further includes an output module 140. This output module 140 enables human-machine interaction with the floor scrubbing robot 1, guiding the user to promptly clean dirt when the liquid level in the storage chamber 201 reaches a preset value. Specifically, the output module 140 is mounted on the top of the housing 110 and electrically connected to the controller. It is configured to output a warning signal. When the float 280 floats to a preset position, the first Hall effect element detects the float 280's position and sends a signal to the controller. The controller then controls the output module 140 to output a warning signal based on this signal. Optionally, the output module 140 includes a display panel, which is used to display visual warning signals such as images and text, thereby prompting the user to clean the dirt in the storage box 200; in addition, in some other embodiments, the output module 140 may also include an audio output device, which is a device that can output sound, such as a speaker, a buzzer, etc. The audio output device is used to output an audible warning signal of a set audio, thereby prompting the user to clean the dirt in the storage box 200; of course, in some other embodiments, the output module 140 may also include a display panel and an audio output device at the same time.

[0087] Furthermore, in some embodiments, in order to enable the controller to promptly understand whether the storage box 200 is accommodated in the first groove 101 and installed in place, thereby facilitating subsequent cleaning operations, the storage box 200 also includes a second magnet (not shown in the figure); accordingly, the above-mentioned Hall element module also includes a second Hall element (not shown in the figure) used in conjunction with the second magnet, and the second Hall element is electrically connected to the above-mentioned controller. Specifically, the second magnet is installed in the box body 210. In this embodiment, the second magnet is arranged in the wall of the box body 210 by insert molding and is arranged near the bottom of the box body 210; it is understandable that in other embodiments of the present invention, the second magnet can also be fixed to the box body 210 by other means such as bonding, screwing, and clamping, which are not listed in detail here. A second Hall element (not shown in the figure) is installed on the shell 110 and is arranged near the bottom of the box body 210. It is used to cooperate with the second magnet to detect whether the storage box 200 is installed in place; when the storage box 200 is installed in place, the second Hall element detects that it is in place, and then sends a signal to the controller. The controller controls the floor scrubbing robot to switch to a mode state where cleaning operations can be performed according to the signal, otherwise, it switches to a mode state where cleaning operations cannot be performed.

[0088] Furthermore, in some embodiments, in order to facilitate the user to extract the storage box 200, the storage box 200 also includes a handle. Figure 3 and Figure 6, and in conjunction with other figures, the handle 290 is generally arched, with its two ends rotatably mounted on the top or top wall of the side wall 2112 of the box body 210. It can be rotated to be perpendicular or parallel to the top wall of the box body 210, and the user can take the storage box 200 by extracting the middle area of the handle 290. Preferably, the outer surface of the top wall of the box body 210 is provided with a handle storage groove (not shown in the figure) that is compatible with the handle 290. When the storage box 200 is accommodated in the first groove 101, the handle 290 can be rotated into the handle storage groove to prevent the handle 290 from protruding from the surface of the box body 210 and affecting the effect of the first flip cover 120 covering the opening of the first groove 101.

[0089] Furthermore, the present invention further improves the structure of the handle 290 to enhance the fixing effect of the storage box 200 relative to the robot body 100 in the height direction when the storage box 200 is accommodated in the first groove 101. Figure 14 , which shows Figure 6In the partially enlarged schematic diagram at point B in the middle, and in conjunction with other figures, a limiting groove 291 is provided at the end of the handle 290 on the end surface facing away from the center thereof. The limiting groove 291 extends along a preset direction, with a first end 2911 of the limiting groove 291 being closed, and a second end 2912 of the limiting groove 291 extending from the first end 2911 along the preset direction through the end of the handle 290. Accordingly, the robot body 100 is provided with a limiting post (not shown) at a position facing the limiting groove 291. The limiting post is used to cooperate with the limiting groove 291 to constrain the freedom of movement of the storage box 200 along the height direction of the cleaning robot 1. Specifically, when the storage box 200 is received in the first groove 101 and the handle 290 rotates from the first preset position to the second preset position, the limiting post slides relative to the handle 290 from the second end 2912 of the limiting groove 291 to the first end 2911, thereby restricting the freedom of movement of the storage box 200 along the height direction of the cleaning robot 1. During the rotation of the handle 290 from the second preset position to the first preset position, the limiting post disengages from the limiting groove 271 from the second end 2912, allowing the user to freely remove the storage box 200. The first preset position is a position in which the handle 290 is perpendicular to the top wall of the box body 210, while the second preset position is a position in which the handle 290 is parallel to the top wall of the box body 210. At this time, the handle 290 is accommodated in the handle receiving groove. In this embodiment, the axis of the first end 2911 is collinear with the rotation axis of the handle 290, and the second end 2912 extends along the preset direction and passes through the end of the handle. In other embodiments of the present invention, the axis of the first end 2911 can also be offset from the rotation axis of the handle 290. Accordingly, the second end 2912 extends along the predetermined direction and passes through the end. In this case, the predetermined direction is the rotation direction of the handle 290 from the first predetermined position to the second predetermined position. It is worth mentioning that the arrangement of the limit slot 291 and the limit post can also remind the user that the storage box 200 can only be lifted out of the storage box 200 after the handle is rotated to the vertical position, thereby ensuring the overall balance of the storage box 200 when it is removed from the first groove 101.

[0090] Furthermore, considering that when the cleaning robot 1 lands, the cleaning roller 300 is in contact with the ground, while the robot body 100 is above the ground, during the movement of the cleaning robot 1, there is no obstruction behind the cleaning roller 300. The air behind the cleaning roller 300 will enter the above-mentioned suction channel 202 through the gap between the cleaning roller 300 and the robot body 100, which will reduce the adsorption effect of the fan assembly 700 on the dirt on the ground. To overcome this shortcoming, the cleaning robot 1 also includes a scraper 800. For details, please refer to Figure 15 , which shows Figure 4In the partially enlarged schematic diagram at point C in the middle, and in conjunction with other figures, the scraper bar 800 extends as a whole in a direction parallel to the axial direction of the cleaning roller 300. It is installed at the bottom of the robot body 100 and is located close to the cleaning roller 300. When the cleaning robot 1 lands, the scraper bar 800 contacts the ground. Along the forward direction of the cleaning robot 1, the scraper bar 800 is located behind the cleaning roller 300. On the one hand, the scraper bar 800 is used to form a shield behind the cleaning roller 300, thereby forming a nearly closed negative pressure space between the cleaning roller 300 and the robot body 100, thereby preventing external air from entering the space, thereby improving the negative pressure adsorption effect of the cleaning robot on dirt on the ground and dirt on the cleaning roller 300. On the other hand, the scraper bar 800 is also used to recover the dirt that was not cleaned in time during the first turnover of the cleaning roller 300 and the dirt that was not adsorbed into the storage chamber 201 in time by the fan assembly 700, so that the cleaning roller 300 can continuously rotate and the fan assembly 700 can continuously adsorb the dirt recovered by the scraper bar 800 into the storage chamber 201.

[0091] Furthermore, the scraper bar 800 includes a fixed portion 810 and a connecting portion 820; wherein the fixed portion 810 is mounted on the bottom of the robot body 100, and one end of the connecting portion 820 is fixed to the fixed portion 810, and the other end extends away from the robot body 100. Preferably, when the cleaning robot 1 lands, the connecting portion 820 contacts the ground.

[0092] Furthermore, at least part of the scraper 800 is in contact with the cleaning roller 300. Preferably, at least part of the fixing portion 810 is arranged to fit the outer end of the flannel 320 of the cleaning roller 300, that is, at least part of the scraper 800 fits the circumferential surface of the cleaning roller 300. In this way, on the one hand, the gap between the scraper 800 and the cleaning roller 300 is reduced, that is, the volume of the above-mentioned negative pressure space is reduced, which helps to enhance the negative pressure adsorption effect of the fan assembly 700. On the other hand, it also helps to appropriately increase the friction between the cleaning roller 300 and the scraper 800 for larger garbage, thereby facilitating the climbing of larger garbage.

[0093] The cleaning robot 1 provided in an embodiment of the present invention includes a robot body 100, a storage box 200, a cleaning roller 300, a roller power assembly 400, a blower assembly 700, a liquid storage tank 500, a liquid supply mechanism, and a driving wheel assembly 600. The storage box 200 includes a box body 210, a cover assembly 220, a cover drive assembly 230, and a locking assembly 240.

[0094] The box body 210 includes a box 211, a box cover 212, and a box sealing ring 213. The box cover 212 is arranged on the box 211 and forms a storage cavity 201 with the box 211. The box sealing ring 213 is arranged at the connection between the box cover 212 and the box 211 and seals the connection between the two. Therefore, even if the cleaning robot 1 is tilted or inverted, the liquid in the storage cavity 201 will be prevented from leaking out due to the action of the box sealing ring 213. Therefore, the storage box 200 can effectively avoid the disadvantage of the liquid in the storage cavity 201 leaking out; similarly, the cleaning robot 1 including the storage box 200 can also effectively avoid the disadvantage of the liquid in the storage cavity 201 leaking out.

[0095] Among them, the box body 210 is provided with an air suction channel 202 that connects the storage chamber 201 and the external environment of the box body 210 respectively, and an air outlet channel 203 that connects the storage chamber 201 and the external environment of the box body 210 respectively. The cover assembly 220 includes a cover 221, which is accommodated in the storage chamber 201 and can move between a sealing position and an unsealing position; in the sealing position, the cover seals the air suction channel and the air outlet channel, and in the unsealing position, the cover unseales the air suction channel and the air outlet channel. Therefore, after the cleaning robot 1 provided by the present invention stops working, the storage box 200 can seal the air suction channel 202 and the air outlet channel 203 by placing the cover 221 in the sealing position, thereby preventing sewage from overflowing from the air suction channel and the air outlet channel, thereby avoiding the disadvantage that when the user picks up the cleaning robot 1, the cleaning robot 1 is slightly tilted, causing sewage to overflow from the air suction channel 202 and / or the air outlet channel 203.

[0096] The cleaning robot 1 utilizes the characteristic that the wheel arm 610 rotates relative to the robot body 100 when the cleaning robot 1 is lifted off the ground or landed. The protrusion 613 provided on the wheel arm 610 drives the push rod 231 in the cover plate drive assembly 230 to move between a first position and a second position, thereby driving the cover plate 221 to move between a sealed position and an unsealed position, thereby opening and closing the first inner port 2021 and the second inner port 2031. When the cleaning robot lands, the protrusion moves with the wheel arm to the engaged position, the cover plate 221 is in the unsealed position, and the cleaning robot can perform normal floor scrubbing operations. When the cleaning robot lifts off the ground, the protrusion 613 moves with the wheel arm 610 to the disengaged position, the cover plate 221 is in the sealed position, thereby preventing sewage from overflowing from the air intake channel 202 and the air outlet channel 203. Therefore, the cleaning robot 1 provided by the present invention realizes that the process of switching the cover plate 221 between the sealed position and the unsealed position is extremely convenient.

[0097] The bottom wall of the housing 210 is at least partially recessed to form a receiving groove 204. The first external port 2022 of the suction channel 202 is located on the wall of the receiving groove 204 and communicates with the receiving groove 204. The first internal port 2021 of the suction channel 202 communicates with the receiving chamber 201. The second internal port 2031 of the outlet channel 203 communicates with the receiving chamber 201, while the second external port 2032 of the outlet channel 203 communicates with the external environment. A sealing ring 250 is provided around the periphery of the receiving groove 204, forming a closed shape. When the storage box 200 is installed in the first groove 101, the sealing ring 250 abuts against the mounting surface of the first groove 101, sealing the gap between the storage box 200 and the mounting surface of the first groove 101. This reduces the amount of air from the external environment that enters the receiving groove 204, thereby improving the efficiency of the fan assembly in sucking dirt; that is, improving the dirt suction efficiency of the cleaning robot 1.

[0098] The storage box 200 is further provided with a first liquid channel 205 and a liquid outlet 206 connecting the first liquid channel 205 with the external environment. The first liquid channel 205 is isolated from the storage chamber 201 and is used to communicate with the liquid supply mechanism. The storage box 200 is integrated with the first liquid channel 205 that can communicate with the liquid supply mechanism and output liquid externally through the liquid outlet 206. In other words, the storage box 200 is integrated with the function of receiving and spraying cleaning liquid. Therefore, the cleaning robot 1 provided by the present invention does not need to be equipped with a separate spray pipe, which facilitates the miniaturization of the cleaning robot.

[0099] In addition, the cleaning robot 1 provided in the embodiment of the present invention also includes a scraper bar 800. The scraper bar 800 is installed at the bottom of the robot body 100 and is arranged near the cleaning roller 300. When the cleaning robot 1 lands, the scraper bar 800 contacts the ground. Then, a nearly closed negative pressure space is formed between the scraper bar 800, the cleaning roller 300 and the robot body 100. In the process of the cleaning robot 1 moving toward the side of the cleaning roller 300 away from the scraper bar 800, the scraper bar 800 forms a shield behind the cleaning roller 300, which can prevent the outside air from entering the above space, thereby enhancing the negative pressure adsorption effect of the cleaning robot 1 on the dirt on the ground.

[0100] Based on the same inventive concept, the present invention further provides a storage box having the same structure as the storage box 200 in the above embodiment. The specific structure and beneficial effects of the storage box are the same as those of the storage box 200 in the above embodiment, and will not be repeated here.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above. For the sake of simplicity, they are not provided in detail. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cleaning robot, characterized in that: include: The robot body is provided with a first groove; a storage box received in the first groove, the storage box comprising a box body, the box body being provided with an air outlet channel, a storage cavity, and an air suction channel connected in sequence, the storage cavity being used to receive dirt sucked in through the air suction channel; A cleaning roller is mounted on the robot body and is disposed below the storage box, wherein the bottom wall of the first groove is provided with a through-hole at a position corresponding to the cleaning roller, and the air suction channel is located above the cleaning roller; as well as a scraper bar mounted on the bottom of the robot body and disposed close to the cleaning roller, wherein the scraper bar contacts the ground when the cleaning robot lands; The air suction channel has a first external port and a first internal port, the first external port is in communication with the external environment of the box and is arranged above the cleaning roller, the first internal port is in communication with the storage cavity, and the air outlet channel has a second internal port and a second external port, the second internal port is in communication with the storage cavity, and the second external port is in communication with the outside of the box; The cleaning robot further comprises a fan assembly, wherein an air inlet of the fan assembly is sealedly connected to the second external port; The storage box further includes a cover plate assembly, the cover plate assembly including a cover plate, the cover plate being received in the storage cavity and movable between a sealing position and an unsealing position, wherein in the sealing position, the cover plate seals the first inner port and the second inner port, and in the unsealing position, the cover plate unseales the first inner port and the second inner port, and the fan assembly is capable of exhausting air from the box body so that the first outer port is in a negative pressure state; The storage box further comprises a cover plate driving assembly, which is mounted on the box body and comprises a push rod, wherein the push rod is arranged below the cover plate, and the other end of the push rod passes through the bottom wall of the box body and extends out of the box body, and the push rod is movable relative to the box body and moves between a first position and a second position; wherein, in the first position, the cover plate is in a sealed position; in the second position, the push rod pushes the cover plate to an unsealed position, and the push rod is closer to the top wall of the box body in the second position than in the first position; The cleaning robot also includes a driving wheel assembly, which includes a wheel arm. The wheel arm is rotatably mounted on the robot body and at least partially extends out of the bottom of the robot body. The free end of the wheel arm is provided with a protrusion, and the protrusion can have a separated position and a mating position as the wheel arm moves; in the separated position, the push rod is in the first position; in the mating position, the protrusion passes through the bottom of the push rod and drives the push rod to the second position.

2. The cleaning robot according to claim 1, characterized in that: At least a portion of the scraper bar is in contact with the cleaning roller.

3. The cleaning robot according to claim 1, characterized in that: The bottom wall of the box body is at least partially concave to form a receiving groove, and the cleaning roller is at least partially received in the receiving groove; The first external port is arranged on the groove wall of the receiving groove.

4. The cleaning robot according to claim 3, characterized in that: The groove wall of the receiving groove has an arc-shaped cross section perpendicular to the extending direction of the cleaning roller.

5. The cleaning robot according to claim 4, characterized in that: The receiving groove has a first side and a second side extending along a set direction. The first side is arranged to extend relative to the second side, and the first side is arranged close to the scraper strip.

6. The cleaning robot according to claim 3, characterized in that: It also includes a sealing ring, which is arranged on the periphery of the receiving groove and is in a closed shape; The first groove has a mounting surface corresponding to the sealing ring, and the sealing ring abuts against the mounting surface of the first groove.

7. The cleaning robot according to claim 6, characterized in that: It also includes a roller handle, which can be rotatably installed on one end of the cleaning roller. A first sealing rubber ring is provided at one end of the roller handle. A slot is provided on the side wall of the first groove. The slot passes through part of the mounting surface. The end is inserted into the slot. The first sealing rubber ring seals the mounting connection between the end and the slot.

8. The cleaning robot according to claim 7, characterized in that: The first sealing rubber ring has a splicing surface, the splicing surface is spliced and connected to the installation surface, and the sealing ring abuts against the splicing surface.

9. The cleaning robot according to claim 1, characterized in that: Also included is a roller power assembly mounted in the robot body; The roller power assembly includes an output terminal, an output ring wall arranged around the outer periphery of the output terminal, and a second sealing rubber ring sleeved on the output ring wall. The output terminal extends into the first groove and is connected to the cleaning roller. The roller power assembly is used to drive the cleaning roller to rotate, and the second sealing rubber ring is used to seal the connection between the output terminal and the robot body.

10. The cleaning robot according to claim 1, characterized in that: The storage box also includes: The cover plate assembly includes a partition plate fixed to the cover plate, and the partition plate is at least partially located between the first inner port and the second inner port.

11. The cleaning robot according to claim 1, characterized in that: From the first outer port to the first inner port, the cross-sectional profile of the air suction channel gradually shrinks.

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