Sweeping robot

Abstract

The utility model relates to the technical field of sweeping robots, in particular to a sweeping robot which comprises a machine shell, a storage box, an air sweeping mechanism and a negative pressure mechanism, the storage box, the air sweeping mechanism and the negative pressure mechanism are all arranged in the machine shell, an inner cavity of a hollow structure is formed in the storage box, and the air sweeping mechanism is arranged in the inner cavity. An adsorption opening is formed in the bottom of the machine shell, the air sweeping mechanism is installed at the adsorption opening, the air sweeping mechanism is communicated with an inner cavity of the storage box, and the negative pressure mechanism is connected with the storage box and used for exhausting air in the inner cavity; the floor sweeping part is rotatably mounted at the bottom of the machine shell; the machine further comprises a walking mechanism, and the walking mechanism is arranged at the bottom of the machine shell and used for driving the machine shell to move. The problems that in a traditional manual driving contact type physical cleaning mode, the labor intensity is large, and raised dust is likely to be generated to harm health are solved.

Description

Technical Field

[0001] This utility model relates to the field of sweeping robot technology, specifically to a sweeping robot. Background Technology

[0002] In the traditional floor cleaning industry, the primary reliance has long been on manual, contact-based physical cleaning methods. This model uses simple tools like brooms and mops as its core operational means. However, the underlying technological system suffers from numerous irreconcilable systemic contradictions. During manual operation, cleaners must repeatedly apply mechanical force to complete a series of repetitive actions such as pushing, pulling, and bending over. Each sweep and wipe involves a continuous depletion of physical energy, making the entire cleaning process exceptionally arduous. Moreover, this manual approach often consumes a significant amount of time when cleaning different areas. Cleaners frequently have to spend a considerable amount of time repeatedly cleaning even a relatively small area to barely achieve a basic level of cleanliness.

[0003] Furthermore, traditional fiber cleaning tools have significant shortcomings in cleaning capabilities. These tools have extremely low efficiency in capturing fine dust, making it difficult to effectively adsorb and remove fine dust particles from the floor. Especially when dealing with complex structures such as wood floor crevices and carpet fibers, traditional tools are simply inadequate, unable to reach these areas for thorough cleaning. This creates numerous unreachable cleaning blind spots, which not only affect the overall cleaning quality but also provide a breeding ground for bacteria, dust, and other pollutants. Worse still, traditional cleaning methods easily generate dust during the process, causing a sudden increase in the concentration of PM2.5 and other suspended particulate matter in the air. This dust not only severely damages indoor air quality but may also trigger allergic reactions in people with respiratory sensitivities, posing a potential threat to public health. Therefore, this inefficient, low-quality, and health-risk-prone cleaning method is far from meeting the high-quality and high-efficiency cleaning demands of modern society.

[0004] Therefore, the inventors proposed a sweeping robot to solve the aforementioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a robotic vacuum cleaner to solve the problems of high labor intensity and dust hazards associated with traditional manual contact-based physical cleaning methods.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A robotic vacuum cleaner includes a housing, a storage box, a vacuuming mechanism, and a negative pressure mechanism. The storage box, the vacuuming mechanism, and the negative pressure mechanism are all disposed inside the housing. The storage box has a hollow inner cavity. An adsorption port is provided at the bottom of the housing. The vacuuming mechanism is installed at the adsorption port and is connected to the inner cavity of the storage box. The negative pressure mechanism is connected to the storage box and is used to expel air from the inner cavity.

[0008] At least one sweeping component, said sweeping component being rotatably mounted on the bottom of the housing;

[0009] It also includes a walking mechanism, which is located at the bottom of the housing and is used to drive the housing to move.

[0010] Furthermore, the housing includes a lower bottom plate, an upper top plate, and side panels. The side panels are disposed between the lower bottom plate and the upper top plate and are connected to the lower bottom plate and the upper top plate respectively. The lower bottom plate, the upper top plate, and the side panels together form a cylindrical structure, and the adsorption port is opened on the lower bottom plate.

[0011] According to the above technical solution, the robot vacuum cleaner's casing is a cylindrical structure composed of a lower base plate, an upper top plate, and side panels. The side panels are located between the lower base plate and the upper top plate and are tightly connected to them. During operation, the lower base plate, as the part in direct contact with the ground, plays a crucial role with its suction port. As the robot's walking mechanism moves the entire casing, the sweeping components rotate and clean below the lower base plate, gathering dust and debris on the ground near the suction port. Because the casing is cylindrical, this design allows the robot to make relatively even contact with the ground in all directions, ensuring comprehensive cleaning. Simultaneously, the cylindrical structure helps reduce collisions and obstructions with surrounding objects during movement and cleaning. With the cooperation of the sweeping and negative pressure mechanisms, dust and debris are smoothly sucked into the storage box inside the casing, thus achieving efficient and stable floor cleaning.

[0012] Furthermore, the air-sweeping mechanism includes a housing base, a first motor, and a brush roller. The housing base is installed at the lower base plate and is positioned corresponding to the suction port.

[0013] The first motor is fixedly mounted on one side of the housing base, the brush roller is rotatably connected inside the housing base, and the output shaft of the first motor extends into the housing base and is coaxially connected to the brush roller.

[0014] According to the above technical solution, the first motor is fixedly mounted on one side of the housing. When the first motor is started, its output shaft begins to rotate. Since the output shaft of the first motor extends into the housing and is coaxially connected to the brush roller, the rotation of the output shaft will drive the brush roller to rotate synchronously within the housing. As the brush roller rotates, its bristles will contact the ground and generate a certain mechanical action, further cleaning and sweeping the dust and debris that has been gathered near the suction port by the sweeping components towards the suction port. At the suction port, due to the negative pressure suction force generated by the negative pressure mechanism in the storage box, this dust and debris will be sucked into the storage box. Throughout the process, the sweeping mechanism drives the brush roller to rotate through the first motor, cooperating with the suction port and the negative pressure mechanism to effectively sweep the ground debris into the storage box, thereby ensuring the cleaning effect of the sweeping robot.

[0015] Furthermore, a dust inlet is provided on one side of the storage box, and the inner cavity of the housing is connected to the dust inlet.

[0016] Furthermore, the negative pressure mechanism includes a fan housing located on one side of the storage box, a negative pressure machine is installed inside the fan housing, the air inlet pipe of the negative pressure machine extends into the inner cavity of the storage box, and the air outlet of the negative pressure machine is inside the fan housing;

[0017] An airflow outlet is provided at the top of the fan casing, and a filter cotton is provided at the airflow outlet.

[0018] Furthermore, the sweeping component includes a second motor fixedly mounted on the lower base plate, and the output shaft of the second motor passes through the lower base plate and is connected to a brush.

[0019] Furthermore, the sweeping component includes a second motor fixedly mounted on the lower base plate, and the output shaft of the second motor passes through the lower base plate and is connected to a mop.

[0020] Furthermore, the bottom plate is provided with Velcro, and a mopping towel is attached to the Velcro.

[0021] Furthermore, the walking mechanism includes a steering wheel and two drive wheels, which are mounted on the bottom of the lower base plate;

[0022] The drive wheel includes a third motor and a caster. The third motor is connected to the caster and is used to drive the caster to rotate.

[0023] Furthermore, an airflow pipe is connected to the airflow outlet, and a plurality of airflow holes are provided on the lower base plate, each of the airflow holes being connected to the airflow pipe.

[0024] The beneficial effects of this utility model are:

[0025] During operation, when the brush roller of the sweeping mechanism rotates and sweeps dust and debris from the ground towards the suction port, the dust and debris are carried into the inner cavity of the housing by the airflow, as the suction port is connected to the inner cavity of the housing. The dust inlet on one side of the storage box is also connected to the inner cavity of the housing. This allows the dust and debris entering the inner cavity of the housing to be smoothly sucked into the hollow inner cavity of the storage box. The storage box, acting as a dust collection container, temporarily stores the sucked-in dust and debris for later cleaning. This interconnected design ensures that the debris swept by the sweeping mechanism can efficiently and smoothly enter the storage box, guaranteeing continuous and stable cleaning operation of the sweeping robot, preventing dust and debris from accumulating inside the housing, and improving cleaning efficiency and effectiveness.

[0026] This utility model has diverse cleaning functions. It can not only perform regular sweeping by connecting a brush to the sweeping component, but also achieve deep cleaning by connecting a mop. At the same time, the design of the airflow pipe and airflow hole can accelerate the drying speed of the floor after wet mopping, and the airflow outlet of the negative pressure mechanism is equipped with filter cotton to avoid secondary pollution. The implementation method can be flexibly selected according to different floor cleaning needs, further improving the overall cleaning effect and performance.

[0027] Other advantages, objectives, and features of this application will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from practice of this application. The objectives and other advantages of this application may be realized and obtained through the detailed embodiments described below. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the sweeping robot of this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the sweeping robot of this utility model after the side panels have been disassembled;

[0030] Figure 3 In the sweeping robot of this utility model Figure 2 A schematic diagram of the split structure;

[0031] Figure 4 This is a partial disassembled structural diagram of the sweeping robot of this utility model;

[0032] Figure 5 This is a bottom view of the structure of the sweeping robot of this utility model;

[0033] Figure 6 This is a schematic diagram of the storage box, the sweeping mechanism, and the negative pressure mechanism in the sweeping robot of this utility model.

[0034] Figure 7 In the sweeping robot of this utility model Figure 6 A schematic diagram of the split structure;

[0035] Figure 8 In the sweeping robot of this utility model Figure 6 A schematic diagram of the structure viewed from below;

[0036] Figure 9 This is a schematic diagram showing the disassembled structure of the negative pressure mechanism, storage box, and sweeping mechanism of the sweeping robot of this utility model;

[0037] Figure 10 This is a schematic diagram of the connection structure between the first motor and the brush roller of the sweeping robot of this utility model.

[0038] Figure 11 This is a schematic diagram of the storage box in the sweeping robot of this utility model;

[0039] Figure 12 This is a structural schematic diagram of Embodiment 1 of the sweeping robot of this utility model;

[0040] Figure 13 This is a schematic diagram of the structure of Embodiment 2 of the sweeping robot of this utility model.

[0041] The components include: housing 1, bottom plate 11, suction port 111, Velcro 112, airflow hole 113, top plate 12, side panel 13, storage box 2, dust inlet 21, sweeping mechanism 3, housing base 31, first motor 32, brush roller 33, negative pressure mechanism 4, fan housing 41, airflow outlet 411, filter cotton 412, negative pressure machine 42, sweeping component 5, second motor 51, brush 52, mop 53, walking mechanism 6, steering wheel 61, drive wheel 62, third motor 621, and caster 622. Detailed Implementation

[0042] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0043] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0044] This embodiment proposes a sweeping robot, such as Figures 1 to 13 As shown, the robot includes a housing 1, a storage box 2, a sweeping mechanism 3, a negative pressure mechanism 4, and at least one sweeping component 5. The storage box 2, the sweeping mechanism 3, and the negative pressure mechanism 4 are all located inside the housing 1. The storage box 2 has a hollow inner cavity for storing dust, fruit peels, paper scraps, and other garbage. The bottom of the housing 1 has an suction port 111, and the sweeping mechanism 3 is installed at the suction port 111. The sweeping mechanism 3 is connected to the inner cavity of the storage box 2. The negative pressure mechanism 4 is connected to the storage box 2 and is used to expel the air from the inner cavity of the storage box 2. The sweeping component 5 is rotatably installed at the bottom of the housing 1. The robot also includes a walking mechanism 6, which is located at the bottom of the housing 1 and is used to move the housing 1, allowing the robot to flexibly move through different areas of the ground to perform cleaning operations.

[0045] In this embodiment, at least one rotatable sweeping component 5 is installed at the bottom of the casing 1. During rotation, the sweeping component 5 initially sweeps and collects dust and debris on the ground. A sweeping mechanism 3 is installed at the suction port 111 at the bottom of the casing 1. When the sweeping mechanism 3 operates, it adsorbs dust and impurities gathered near the suction port 111 and sweeps them into the hollow cavity of the storage box 2 through a channel connecting it to the inner cavity of the storage box 2. Simultaneously, the negative pressure mechanism 4 connected to the storage box 2 continuously expels air from the inner cavity of the storage box 2, creating a negative pressure. The suction generated by this negative pressure further promotes the suction of dust, impurities, and other debris into the inner cavity of the storage box 2, thereby achieving efficient cleaning. Through the coordinated operation of the walking mechanism 6, the sweeping component 5, the sweeping mechanism 3, and the negative pressure mechanism 4, the sweeping robot can still efficiently complete floor cleaning even when facing complex structures such as gaps in wooden floors and carpet fibers, avoiding dust generation through the adsorption cleaning method.

[0046] As a preferred embodiment, such as Figure 1 , Figure 2 and Figure 3As shown, the casing 1 includes a lower base plate 11, an upper top plate 12, and side panels 13. The side panels 13 are positioned between the lower base plate 11 and the upper top plate 12, and are connected to both the lower base plate 11 and the upper top plate 12. The lower base plate 11, the upper top plate 12, and the side panels 13 together form a cylindrical structure, with the suction port 111 located on the lower base plate 11. Because the casing 1 has an overall cylindrical structure, this design allows the robot vacuum to make relatively even contact with the ground in all directions, ensuring comprehensive cleaning. Simultaneously, the cylindrical structure also helps reduce collisions and obstructions with surrounding objects during the robot's movement and cleaning process. With the cooperation of the sweeping mechanism 3 and the negative pressure mechanism 4, dust and debris are smoothly sucked into the storage box 2 inside the casing 1 through the suction port 111, thereby achieving efficient and stable floor cleaning.

[0047] As a preferred embodiment, such as Figure 4 , Figure 9 and Figure 10 As shown, the air-sweeping mechanism 3 includes a housing 31, a first motor 32, and a brush roller 33. The housing 31 is installed on the lower base plate 11 and is set corresponding to the suction port 111. The first motor 32 is fixedly installed on one side of the housing 31, and the brush roller 33 is rotatably connected inside the housing 31. The output shaft of the first motor 32 extends into the housing 31 and is coaxially connected to the brush roller 33. A dust inlet 21 is opened on one side of the storage box 2. The inner cavity of the housing 31 is connected to the dust inlet 21. Since the suction port 111 is connected to the inner cavity of the housing 31, the dust and debris will enter the inner cavity of the housing 31 along with the airflow. The dust inlet 21 opened on one side of the storage box 2 is connected to the inner cavity of the housing 31. In this way, the dust and debris entering the inner cavity of the housing 31 will be smoothly sucked into the hollow inner cavity of the storage box 2 through the dust inlet 21. In this embodiment, when the first motor 32 is started, its output shaft begins to rotate. The rotation of the output shaft will cause the brush roller 33 to rotate synchronously within the housing 31. As the brush roller 33 rotates, a negative pressure is generated at the suction port 111. At the same time, combined with the negative pressure suction force formed by the negative pressure mechanism 4 in the storage box 2, the dust and debris will be sucked into the storage box 2, thus effectively sweeping the ground garbage into the storage box 2, thereby ensuring the cleaning effect of the sweeping robot.

[0048] The top of the storage box 2 is connected to a storage cover (not shown) by a snap-fit ​​mechanism. The storage box 2 serves as a dust collection container, which can temporarily store the sucked-in dust and debris. When the storage cover is opened, it is convenient to clean the dust and debris inside the storage box 2.

[0049] As a preferred embodiment, such as Figure 6 and Figure 7As shown, the negative pressure mechanism 4 includes a fan housing 41 located on one side of the storage box 2. A negative pressure machine 42 is installed inside the fan housing 41. The air inlet pipe of the negative pressure machine 42 extends into the inner cavity of the storage box 2. A filter joint is provided at the end of the air inlet pipe. The purpose of the filter joint is to prevent dust from entering the negative pressure machine 42 and only allow airflow to enter the negative pressure machine 42. The air outlet pipe of the negative pressure machine 42 is located inside the fan housing 41. An airflow outlet 411 is opened at the top of the fan housing 41. A filter cotton 412 is provided at the airflow outlet 411. In this embodiment, when the negative pressure mechanism 4 is working, the negative pressure pump 42 inside the fan housing 41 located on one side of the storage box 2 is activated. The negative pressure pump 42 continuously draws air out of the inner cavity of the storage box 2 through its air inlet pipe. As the air in the inner cavity of the storage box 2 is drawn out, a negative pressure is formed in the inner cavity. The strong suction generated by this negative pressure can smoothly suck dust, debris, etc. on the ground into the inner cavity of the storage box 2 through the sweeping mechanism 3 and the suction port 111, along the inner cavity of the housing base 31, the dust inlet 21, and other channels. A filter cotton 412 is provided at the airflow outlet 411 opened at the top of the fan housing 41. The filter cotton 412 can effectively intercept small particles such as dust in the air, making the exhaust air relatively clean, avoiding secondary pollution, and improving the overall cleaning effect and performance of the sweeping robot.

[0050] In a preferred embodiment, the walking mechanism 6 includes a steering wheel 61 and two drive wheels 62, which are mounted on the bottom of the lower base plate 11. Each drive wheel 62 includes a third motor 621 and a caster 622. The third motor 621 is connected to the caster 622 via a tension belt, which drives the caster 622 to rotate. In this embodiment, while the sweeping robot is working, the walking mechanism 6 ensures the robot's flexible movement. The steering wheel 61 and the two drive wheels 62 are mounted on the bottom of the lower base plate 11. The steering wheel 61 can rotate flexibly, helping the robot change its direction of travel. The third motor 621 is connected to the caster 622; when the third motor 621 operates, it drives the caster 622 to rotate, thereby providing forward propulsion for the robot.

[0051] As a preferred embodiment, such as Figure 5 As shown, a Velcro 112 is provided on the bottom plate 11, and a mopping towel (not shown) is attached to the Velcro 112. By using the Velcro 112 on the bottom plate 11 to attach the mopping towel, when the robot vacuum moves, the mopping towel can wipe the floor as the robot moves forward, effectively removing stains and water stains from the floor and realizing the function of wet mopping.

[0052] In a preferred embodiment, an airflow pipe (not shown) is connected to the airflow outlet 411, and a plurality of airflow holes 113 are provided on the lower base plate 11, each airflow hole 113 being connected to the airflow pipe. During the operation of the sweeping robot, the negative pressure unit 42 extracts air from the inner cavity of the storage box 2 to form a negative pressure, and the airflow from the negative pressure unit 42 is discharged through the airflow outlet 411. Since the airflow outlet 411 in this embodiment is connected to the airflow pipe, the airflow is discharged through the airflow pipe. Since a plurality of airflow holes 113 are provided on the lower base plate 11, and these airflow holes 113 are connected to the airflow pipe, the airflow will flow into these airflow holes 113 along the airflow pipe. At this time, the mopping towel attached to the lower base plate 11 is usually in a wet state after wet mopping, and the airflow flowing into the airflow holes 113 will be blown directly onto the wet ground. During the flow of airflow, it will carry away the moisture on the ground, accelerate the evaporation rate of moisture, thereby achieving the effect of quickly drying the ground and further improving the overall cleaning effect. Example 1

[0053] like Figure 12 As shown, in this embodiment, the preferred number of sweeping components 5 is two, with the suction port 111 located between the two sweeping components 5. Each sweeping component 5 includes a second motor 51 fixedly mounted on the lower base plate 11. The output shaft of the second motor 51 passes through the lower base plate 11 and is connected to a brush 52. In this embodiment, when the sweeping component 5 is connected to the brush 52, the second motor 51 is fixedly mounted on the lower base plate 11. After starting, it drives the brush 52 to rotate. During the rotation, the brush 52 makes full contact with the ground. Through mechanical friction and sweeping action, it throws dust, debris, and other impurities on the ground towards the suction port 111, preparing them for subsequent suction into the storage box 2 by the sweeping mechanism 3 and the negative pressure mechanism 4. Example 2

[0054] like Figure 13 As shown, the sweeping component 5 includes a second motor 51 fixedly mounted on the lower base plate 11. The output shaft of the second motor 51 passes through the lower base plate 11 and is connected to a mop 53. In this embodiment, when the sweeping component 5 adopts the structure of the second motor 51 output shaft connected to the mop 53, the second motor 51 is also fixed on the lower base plate 11 and drives the output shaft to rotate, thereby driving the mop 53 to rotate. During the rotation, the mop 53 can use its adsorption and wiping functions to perform deep cleaning of the floor, effectively removing stains, water stains, etc. on the floor, making the floor cleaner.

[0055] The implementation methods of Examples 1 and 2 can be flexibly selected according to different floor cleaning needs to achieve diverse cleaning effects.

[0056] The above embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model are all within the protection scope of the present utility model.

Claims

1. A robotic vacuum cleaner, characterized in that, include: The machine housing (1), storage box (2), air sweeping mechanism (3) and negative pressure mechanism (4) are all located inside the machine housing (1). The storage box (2) has a hollow cavity. The bottom of the machine housing (1) is provided with an adsorption port (111). The air sweeping mechanism (3) is installed at the adsorption port (111). The air sweeping mechanism (3) is connected to the cavity of the storage box (2). The negative pressure mechanism (4) is connected to the storage box (2) and is used to exhaust the air in the cavity. At least one sweeping component (5) is rotatably mounted on the bottom of the housing (1); It also includes a walking mechanism (6), which is located at the bottom of the housing (1) and is used to drive the housing (1) to move.

2. The sweeping robot according to claim 1, characterized in that: The housing (1) includes a lower base plate (11), an upper top plate (12), and a side panel (13). The side panel (13) is disposed between the lower base plate (11) and the upper top plate (12) and is connected to the lower base plate (11) and the upper top plate (12) respectively. The lower base plate (11), the upper top plate (12), and the side panel (13) together form a cylindrical structure. The adsorption port (111) is opened on the lower base plate (11).

3. The sweeping robot according to claim 2, characterized in that: The sweeping mechanism (3) includes a housing base (31), a first motor (32) and a brush roller (33). The housing base (31) is installed on the lower base plate (11) and is set corresponding to the suction port (111). The first motor (32) is fixedly mounted on one side of the housing base (31), and the brush roller (33) is rotatably connected inside the housing base (31). The output shaft of the first motor (32) extends into the housing base (31) and is coaxially connected to the brush roller (33).

4. The sweeping robot according to claim 3, characterized in that: The storage box (2) has a dust inlet (21) on one side, and the housing base (31) is connected to the dust inlet (21).

5. The sweeping robot according to claim 4, characterized in that: The negative pressure mechanism (4) includes a fan housing (41) located on one side of the storage box (2), a negative pressure machine (42) is provided inside the fan housing (41), the air inlet pipe of the negative pressure machine (42) extends into the inner cavity of the storage box (2), and the air outlet of the negative pressure machine (42) is inside the fan housing (41). The top of the fan housing (41) is provided with an airflow outlet (411), and a filter cotton (412) is provided at the airflow outlet (411).

6. The sweeping robot according to claim 2, characterized in that: The sweeping component (5) includes a second motor (51) fixedly mounted on the lower base plate (11), and the output shaft of the second motor (51) passes through the lower base plate (11) and is connected to a brush (52).

7. The sweeping robot according to claim 2, characterized in that: The sweeping component (5) includes a second motor (51) fixedly mounted on the lower base plate (11), and the output shaft of the second motor (51) passes through the lower base plate (11) and is connected to a mop (53).

8. The sweeping robot according to claim 5, characterized in that: The bottom plate (11) is provided with Velcro (112), and a mopping towel is attached to the Velcro (112).

9. The sweeping robot according to claim 8, characterized in that: The walking mechanism (6) includes a steering wheel (61) and two drive wheels (62), which are mounted on the bottom of the lower base plate (11). The drive wheel (62) includes a third motor (621) and a caster (622). The third motor (621) is connected to the caster (622) and is used to drive the caster (622) to rotate.

10. The sweeping robot according to claim 8, characterized in that: An airflow pipe is connected to the airflow outlet (411), and a plurality of airflow holes (113) are provided on the bottom plate (11), each of the airflow holes (113) being connected to the airflow pipe.

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