A robot sweeper

Abstract

The utility model discloses a kind of sweeping robots, belong to robot technical field.Sweeping robot includes chassis and be arranged on chassis wheel system, wheel system is used to realize sweeping robot ground walking, sweeping robot also includes in the chassis along from front to back direction sequentially arranged sweeping mechanism, washing mechanism and suction mechanism.Sweeping mechanism includes two edge brushes and dust box, two edge brushes are along left-right direction setting, can rotate to each other, to sweep solid waste into dust box;Washing mechanism includes washing brush and liquid supply component, washing brush and ground can generate friction, and liquid supply component can spray liquid;Suction mechanism can adsorb ground liquid;Suction mechanism can be moved along vertical direction by lifting mechanism drive.The utility model can realize sweeping and washing simultaneously, meet the demand of user for comprehensive, efficient, convenient cleaning.

Description

Technical Field

[0001] This utility model relates to the field of robotics technology, and in particular to a sweeping robot. Background Technology

[0002] With the rapid development of automation technology and artificial intelligence, robots have been applied in various scenarios, especially in labor-intensive industries where the work is labor-intensive and repetitive. Robotic vacuum cleaners can automatically clean floors, saving time and effort, and are suitable for both residential and commercial settings.

[0003] In related technologies, robotic vacuum cleaners typically only have sweeping or washing functions. Sweeping removes solid debris such as dust, hair, and crumbs, while washing uses a brush and cleaning solution to scrub the floor for deep cleaning. However, washing is less effective at handling solid debris, which can easily become entangled in the brush, requiring manual cleaning. Neither of these two types of robotic vacuum cleaners can meet users' needs for comprehensive, efficient, and convenient cleaning in actual use. Utility Model Content

[0004] The purpose of this invention is to provide a sweeping robot that can simultaneously sweep and wash the floor, meeting users' needs for comprehensive, efficient, and convenient cleaning.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A robotic vacuum cleaner includes a chassis and a wheel system mounted on the chassis, the wheel system enabling the robotic vacuum cleaner to move on the ground. The robotic vacuum cleaner also includes the following components arranged sequentially from front to back on the chassis:

[0007] The sweeping mechanism includes two side brushes and a dust box. The two side brushes are arranged in the left-right direction and can rotate in opposite directions to sweep solid debris into the dust box.

[0008] A floor cleaning mechanism includes a floor cleaning brush and a liquid supply assembly, wherein the floor cleaning brush can generate friction with the ground and the liquid supply assembly can spray liquid;

[0009] The vacuuming mechanism is capable of absorbing liquids from the ground; the vacuuming mechanism is driven by a lifting mechanism to move vertically.

[0010] In some embodiments, the sludge suction mechanism includes a vacuum pump, a sludge tank, a squeegee, and a suction pipe. The vacuum pump is used to evacuate the sludge tank to create a negative pressure state. The suction pipe connects the sludge tank and the squeegee, which absorbs liquid from the ground. The lifting mechanism is used to drive the squeegee to move vertically.

[0011] In some embodiments, the chassis has a connecting portion, and the dust box is detachably installed at the connecting portion.

[0012] In some embodiments, the joint includes a receiving space for accommodating a dust box, the dust box being slidable in a left-right direction within the receiving space; the receiving space has a first opening on at least one side in the left-right direction, the dust box being able to enter and exit the receiving space through the first opening, and a second opening is provided on the front side of the receiving space, the opening of the dust box communicating with the outside through the second opening.

[0013] In some embodiments, the joint is fixed with a connecting slope, one end of which is located at the opening of the dust box, and the other end extends downward at an angle. The side brush can sweep the solid debris into the dust box through the connecting slope.

[0014] In some embodiments, the projections of the side brush and the connecting slope onto the ground at least partially overlap, the bottom surface of the side brush is set at an angle to the ground, and the bottom surface of the side brush is inclined upward along the direction from front to back.

[0015] In some embodiments, the wheel system includes a drive wheel disposed between the vacuuming mechanism and the sweeping mechanism; and / or, the wheel system further includes two auxiliary wheels disposed on both sides of the sweeping mechanism in the left-right direction.

[0016] In some embodiments, the floor cleaning mechanism includes a base plate for mounting a scrubbing brush, the base plate having perforations, the liquid supply assembly including a pipe and a water tank, both the base plate and the water tank being disposed on the chassis, one end of the pipe communicating with the water tank, and the other end passing through the perforations and spraying liquid toward the scrubbing brush.

[0017] In some embodiments, there are multiple floor scrubbing brushes and multiple perforations, with each perforation and floor scrubbing brush corresponding to the other. The pipeline includes a main water pipe and multiple branch water pipes connected to the main water pipe. Each branch water pipe passes through one of the perforations. The main water pipe is connected to the water tank.

[0018] In some embodiments, the floor scrubbing brush includes a brush disc and bristles, an annular groove is provided on one side of the brush disc, and a plurality of through holes are provided at the bottom of the annular groove along the annular direction of the annular groove, and the liquid supply assembly is capable of spraying liquid into the annular groove.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides a robotic vacuum cleaner that moves along a predetermined trajectory during operation. Simultaneously, the side brushes in the sweeping mechanism rotate, sweeping solid debris from the ground into the dustbin. The washing mechanism's washing brushes rotate at high speed, while a liquid supply component sprays liquid, achieving floor cleaning through friction and the action of the liquid. As the robot moves forward, the rear suction mechanism reaches the original position of the washing mechanism, adsorbing and recycling the wastewater left on the ground.

[0021] By dividing the chassis into three sections along the front-to-back direction—one for sweeping, one for washing, and one for vacuuming—the robot vacuum achieves sweeping, washing, and vacuuming functions, improving its performance and user experience. Furthermore, because the sweeping and washing mechanisms are separated, with the sweeping mechanism located in front of the washing mechanism, dry and wet cleaning is achieved. This effectively prevents paper and plastic bags from sticking to the floor due to moisture, thus avoiding incomplete cleaning. It also prevents the washing mechanism from getting tangled with solid debris, improving cleaning efficiency and meeting users' needs for comprehensive, efficient, and convenient cleaning. Attached Figure Description

[0022] Figure 1 This is a side view of a sweeping robot provided in a specific embodiment of this utility model;

[0023] Figure 2 This is a top view of the sweeping mechanism provided in a specific embodiment of this utility model;

[0024] Figure 3 This is a cross-sectional view of the dust box and chassis assembly provided in a specific embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram of a floor cleaning mechanism from one perspective, provided by a specific embodiment of this utility model.

[0026] Figure 5 This is a schematic diagram of a floor cleaning mechanism from another perspective, provided by a specific embodiment of this utility model;

[0027] Figure 6 This is a top view of the floor scrubbing brush provided in a specific embodiment of this utility model;

[0028] Figure 7 yes Figure 6 AA section view;

[0029] Figure 8 This is a partial schematic diagram of the suction mechanism provided in a specific embodiment of this utility model.

[0030] In the picture:

[0031] 100. Chassis; 110. Accommodation space; 111. First fixed structure; 112. Second fixed structure; 120. Slide rail;

[0032] 200. Gear train; 210. Drive wheel; 220. Auxiliary wheel;

[0033] 300. Sweeping mechanism; 310. Side brush; 320. Dustbin; 321. Slide rail; 322. Buffer; 324. Connecting ramp; 325. Groove; 330. Sweeping motor;

[0034] 400. Floor scrubbing mechanism; 410. Floor scrubbing brush; 411. Brush disc; 412. Circular groove; 413. Through hole; 414. Brush bristles; 420. Liquid supply assembly; 421. Main water pipe; 422. Branch water pipe; 430. Base plate; 431. Perforation; 440. Floor scrubbing motor;

[0035] 500. Vacuuming mechanism; 510. Squeegee; 520. Vacuum pipe. Detailed Implementation

[0036] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] like Figures 1-8 As shown, this embodiment provides a sweeping robot, including a chassis 100 and a wheel system 200 disposed on the chassis 100. The wheel system 200 is used to enable the sweeping robot to walk on the ground. The sweeping robot also includes a sweeping mechanism 300, a washing mechanism 400 and a vacuuming mechanism 500 arranged sequentially from front to back on the chassis 100.

[0040] The sweeping mechanism 300 includes two side brushes 310 and a dustbin 320. The two side brushes 310 are arranged in a left-right direction and can rotate towards each other to sweep solid debris into the dustbin 320. Specifically, the two side brushes 310 are symmetrically distributed at the front of the chassis 100. The sweeping motor 330 drives the side brushes 310 to rotate towards each other. The purpose is to gather solid debris in front of the sweeping robot towards the center, and at the same time push the solid debris in the center backward, sweeping the solid debris into the dustbin 320 located at the rear, thus realizing the removal and collection of solid debris.

[0041] The floor cleaning mechanism 400 includes a floor cleaning brush 410 and a liquid supply component 420. The floor cleaning brush 410 generates friction with the floor, and the liquid supply component 420 sprays liquid, such as detergent or water. As the robot vacuum moves forward, the combined action of the liquid from the liquid supply component 420 and the floor cleaning brush 410 cleans the floor. Specifically, the floor cleaning brush 410 exerts pressure on the floor, and the floor cleaning motor 440 drives the floor cleaning brush 410 to rotate at high speed, achieving floor cleaning through friction.

[0042] The suction mechanism 500 can absorb liquids on the ground, specifically, residual wastewater from the liquid sprayed by the liquid supply component 420. Driven by a lifting mechanism, the suction mechanism 500 can move vertically. During operation, the lifting mechanism lowers the suction mechanism 500 to a preset position to absorb the liquids. When not in operation or simply moving, the lifting mechanism raises the suction mechanism 500 to another preset position for storage, thus protecting the suction mechanism 500 and reducing friction between the ground and the suction mechanism 500 during movement, thereby reducing wear and tear and further protecting it.

[0043] During operation, the robotic vacuum cleaner moves along a predetermined trajectory under the control of a preset program. Simultaneously, the side brush 310 in the sweeping mechanism 300 rotates, sweeping solid debris from the ground into the dustbin 320. The washing brush 410 in the washing mechanism 400 rotates at high speed, while the liquid supply component 420 sprays liquid, achieving floor cleaning through friction and the action of the liquid. As the robotic vacuum cleaner moves forward, the suction mechanism 500 reaches the original position of the washing mechanism 400, adsorbing and recycling the wastewater left on the ground by the washing mechanism 400.

[0044] By dividing the chassis 100 into three areas along the front-to-back direction, which are used to install the sweeping mechanism 300, the washing mechanism 400, and the vacuuming mechanism 500 respectively, the robot vacuum achieves sweeping, washing, and vacuuming functions, improving its performance and user experience. Simultaneously, because the sweeping mechanism 300 and the washing mechanism 400 are separated front and back, with the sweeping mechanism 300 located in front of the washing mechanism 400, dry and wet cleaning is achieved. This effectively prevents paper and plastic bags from sticking to the floor due to moisture, thus avoiding incomplete cleaning. It also prevents the washing mechanism 400 from getting tangled with solid debris, improving cleaning efficiency and meeting users' needs for comprehensive, efficient, and convenient cleaning.

[0045] The dustbin 320 is located directly behind the two side brushes 310. It is hollow inside and used to hold solid waste pushed by the front side brushes 310. The chassis 100 is fixedly equipped with a connecting slope 324. One end of the connecting slope 324 is connected to the opening of the dustbin 320, and the other end extends downwards at an angle, forming a conveying channel for solid waste to enter the dustbin body. The side brushes 310 can sweep solid debris into the dustbin 320 through the connecting slope 324. The inclined connecting slope 324 has a guiding function, facilitating collection. Optionally, the projections of the side brushes 310 and the connecting slope 324 on the ground at least partially overlap. The bottom surface of the side brushes 310 is set at an angle α with the ground, and the bottom surface of the side brushes 310 slopes upwards from front to back, reducing structural interference between the side brushes 310 and the connecting slope 324 in the vertical direction.

[0046] Considering the limited capacity of the dustbin 320, the chassis 100 is provided with a connecting part, and the dustbin 320 can be detachably installed at the connecting part. When the dustbin 320 is full, it can be removed for cleaning and subsequent use. In one embodiment, the connecting part includes a receiving space 110 for accommodating the dustbin 320, and the dustbin 320 can slide in the left-right direction within the receiving space 110. The receiving space 110 has a first opening on at least one side in the left-right direction, through which the dustbin 320 can enter and exit the receiving space 110. The front side of the receiving space 110 has a second opening, through which the opening of the dustbin 320 communicates with the outside. The dustbin 320 is configured as a pull-out structure on the side of the receiving space 110 for easy assembly and disassembly. Specifically, the chassis 100 is provided with a first fixing structure 111 and a second fixing structure 112, which together form a receiving space 110. The shapes of the first fixing structure 111 and the second fixing structure 112 are adapted to the shape of the dust box 320, so that the first fixing structure 111 and the second fixing structure 112 are in close contact with the outer surface of the dust box 320, which serves as a limiting function and maximizes the volume of the dust box 320. The surface of the dust box 320 is a smooth plane to facilitate its removal from the receiving space 110. The receiving space 110 is provided with a slide rail 120 extending in the left and right direction inside or outside. The dust box 320 is provided with a sliding groove 321, which is slidably connected to the slide rail 120 to constrain the dust box 320. The connecting slope 324 is fixed to the joint, specifically fixed to the second fixing structure 112, and located on the outside of the receiving space 110.

[0047] Optionally, the dust box 320 has a groove 325 on its outer side, and a slider is installed in the groove 325. The slider and the groove 325 are connected by a buffer member 322, such as a spring. The slider has a groove 321, which cooperates with the slide rail 120. The buffer member 322 acts to buffer the dust box 320 and the chassis 100, reducing the impact force between them.

[0048] The floor cleaning mechanism 400 includes a base plate 430 for mounting a scrubbing brush. The base plate 430 has a perforation 431. The liquid supply assembly 420 includes a pipe and a water tank. Both the base plate 430 and the water tank are located on the chassis 100. One end of the pipe is connected to the water tank, and the other end passes through the perforation 431 and sprays liquid onto the scrubbing brush 410. The water tank stores liquid, which is then sprayed through the pipe. Optionally, the base plate 430 is fixed to the chassis 100 by a motion mechanism. The scrubbing brush 410 can rise or fall with the base plate 430 under the action of the motion mechanism. Specifically, depending on the needs, the motion mechanism drives the scrubbing brush 410 to descend, creating pressure between it and the floor. When the robot vacuum is not in operation, the motion mechanism drives the scrubbing brush 410 to rise.

[0049] Multiple floor scrubbing brushes 410 and multiple perforations 431 are provided, with each perforation 431 corresponding to a specific floor scrubbing brush 410. The piping includes a main water pipe 421 and multiple branch water pipes 422 connected to the main water pipe 421. Each branch water pipe 422 passes through a specific perforation 431. The main water pipe 421 is connected to a water tank, thus enabling multiple floor scrubbing brushes 410 to operate simultaneously, increasing the working area and improving work efficiency. The floor scrubbing brushes 410 are mounted on a base plate 430 via a floor scrubbing motor 440. Other accessories can also be mounted on the base plate 430, without limitation.

[0050] The floor scrubbing brush 410 includes a brush disc 411 and bristles 414. An annular groove 412 is provided on one side of the brush disc 411. Multiple through holes 413 are provided along the circumferential direction of the bottom of the annular groove 412. The liquid supply component 420 can spray liquid into the annular groove 412. The liquid is sprayed through the annular groove 412 and the through holes 413. The multiple through holes 413 are arranged circumferentially around the floor scrubbing brush 410, thereby achieving uniform liquid spraying along the circumference of the brush, enhancing the cleaning effect of the brush 410 on the floor. The bristles 414 are wear-resistant bristles, extending the service life of the floor scrubbing brush 410.

[0051] The sludge suction mechanism 500 includes a vacuum pump, a sludge tank, a squeegee 510, and a suction pipe 520. The vacuum pump creates a negative pressure in the sludge tank. The suction pipe 520 connects the sludge tank and the squeegee 510, which absorbs liquid from the ground. A lifting mechanism drives the squeegee 510 to move vertically. The lifting mechanism allows the squeegee 510 to contact the ground, drawing the liquid (sludge) into the sludge tank. The suction pipe 520 forms a connection between the squeegee 510 and the sludge tank. The vacuum pump creates a negative pressure in the sludge tank, which is then transmitted to the squeegee 510 through the suction pipe 520, creating a negative pressure environment inside the squeegee 510 to absorb the sludge. Simultaneously, the suction pipe 520 transports the sludge absorbed by the squeegee 510 into the sludge tank. The vacuum pump and sewage tank are both mounted on the chassis 100, connected to the squeegee 510 via a lifting mechanism. The suction pipe 520 is a corrugated hose or other flexible hose, reducing the load on the lifting mechanism and facilitating lifting. Specifically, the lifting mechanism can refer to existing technology and will not be described in detail here.

[0052] The wheel system 200 includes drive wheels 210 and two auxiliary wheels 220. The drive wheels 210 are located between the suction mechanism 500 and the cleaning mechanism 400, and are arranged in a left-right direction to enable the robot vacuum to move. The two auxiliary wheels 220 are located on both sides of the cleaning mechanism 300 in the left-right direction, avoiding a front-back alignment between the auxiliary wheels 220 and the cleaning mechanism 300, thus shortening the robot vacuum's front-back dimensions. The auxiliary wheels 220 can be omnidirectional wheels. The two auxiliary wheels 220 provide support for the robot vacuum and provide traction for its forward and backward movement. This arrangement results in a compact structure.

[0053] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A robotic vacuum cleaner, characterized in that, The robot includes a chassis (100) and a wheel system (200) mounted on the chassis (100). The wheel system (200) enables the robot to move on the ground. The robot also includes the following components arranged sequentially from front to back on the chassis (100): The sweeping mechanism (300) includes two side brushes (310) and a dust box (320). The two side brushes (310) are arranged in the left-right direction and can rotate in opposite directions to sweep solid debris into the dust box (320). A floor cleaning mechanism (400) includes a floor cleaning brush (410) and a liquid supply assembly (420), wherein the floor cleaning brush (410) can generate friction with the ground and the liquid supply assembly (420) can spray liquid; The vacuuming mechanism (500) is capable of absorbing liquids on the ground; the vacuuming mechanism (500) is driven by a lifting mechanism to move vertically.

2. The sweeping robot according to claim 1, characterized in that, The sludge suction mechanism (500) includes a vacuum pump, a sludge tank, a squeegee (510), and a suction pipe (520). The vacuum pump is used to evacuate the sludge tank to create a negative pressure state. The suction pipe (520) connects the sludge tank and the squeegee (510). The squeegee (510) absorbs liquid from the ground. The lifting mechanism is used to drive the squeegee (510) to move vertically.

3. The sweeping robot according to claim 1, characterized in that, The chassis (100) is provided with a connecting part, and the dust box (320) is detachably installed on the connecting part.

4. The sweeping robot according to claim 3, characterized in that, The joint includes a receiving space (110) for accommodating a dust box (320), the dust box (320) being able to slide in the left-right direction within the receiving space (110); The accommodating space (110) has a first opening on at least one side along the left-right direction, and the dust box (320) can enter and exit the accommodating space (110) through the first opening. The accommodating space (110) has a second opening on the front side, and the opening of the dust box (320) communicates with the outside through the second opening.

5. The sweeping robot according to claim 3, characterized in that, The joint is fixed with a connecting slope (324), one end of which is located at the opening of the dust box (320), and the other end extends downward at an angle. The side brush (310) can sweep the solid debris into the dust box (320) through the connecting slope (324).

6. The sweeping robot according to claim 5, characterized in that, The projections of the side brush (310) and the connecting slope (324) on the ground at least partially overlap, and the bottom surface of the side brush (310) is set at an angle to the ground, and the bottom surface of the side brush (310) is inclined upward along the direction from front to back.

7. The sweeping robot according to claim 1, characterized in that, The wheel system (200) includes a drive wheel (210) disposed between the vacuuming mechanism (500) and the floor cleaning mechanism (400); and / or, the wheel system (200) further includes two auxiliary wheels (220) disposed on both sides of the sweeping mechanism (300) in the left-right direction.

8. The sweeping robot according to claim 1, characterized in that, The floor cleaning mechanism (400) includes a base plate (430) for mounting a scrubbing brush. The base plate (430) has a perforation (431). The liquid supply assembly (420) includes a pipe and a water tank. The base plate (430) and the water tank are both located on the chassis (100). One end of the pipe is connected to the water tank, and the other end passes through the perforation (431) and sprays liquid toward the scrubbing brush (410).

9. The sweeping robot according to claim 8, characterized in that, The floor scrubbing brush (410) is provided in multiple ways, and the perforation (431) is provided in multiple ways. The multiple perforations (431) and the multiple floor scrubbing brushes (410) are arranged one-to-one. The pipeline includes a main water pipe (421) and multiple branch water pipes (422) connected to the main water pipe (421). The multiple branch water pipes (422) pass through the multiple perforations (431) one-to-one. The main water pipe (421) is connected to the water tank.

10. The sweeping robot according to any one of claims 1-9, characterized in that, The floor scrubbing brush (410) includes a brush disc (411) and bristles (414). An annular groove (412) is provided on one side of the brush disc (411). A plurality of through holes (413) are provided at the bottom of the annular groove (412) along the annular direction of the annular groove (412). The liquid supply component (420) can spray liquid into the annular groove (412).

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