Self-cleaning sweeping and mopping device and self-cleaning sweeping and mopping robot

Abstract

The present invention provides a self-cleaning sweeping and mopping device, comprising a volute, a roller brush, and a power device for driving the roller brush to rotate; the volute is provided with a sewage cleaning port, a sewage outlet, a tooth comb, and a water inlet in sequence in the direction of rotation of the roller brush; the roller brush contacts the ground through the sewage cleaning port; the sewage outlet is used to connect to a vacuum cleaner; the tooth comb is used to remove debris from the roller brush; and the water inlet is used to connect to a water system to inject water into the roller brush. With this arrangement, when the power device drives the roller brush to rotate, the tooth comb can scrape off sewage and debris from the roller brush, and the sewage and debris enter the sewage outlet and are sucked away. The water inlet sprays water onto the roller brush at a certain frequency, so that the roller brush can promptly remove sewage and debris in each rotation cycle, and then inject clean water to complete the self-cleaning cycle. The present invention also provides a self-cleaning sweeping and mopping robot using the self-cleaning sweeping and mopping device.

Description

Technical Field

[0001] The present invention relates to the technical field of sweeping robots, and in particular to a self-cleaning sweeping and mopping integrated device and a self-cleaning sweeping and mopping integrated robot. Background Art

[0002] The current sweeping and mopping robots mainly have two forms:

[0003] The first method is to add a fixed water tank and mop to a regular robot vacuum, allowing it to sweep and mop simultaneously. As the robot moves, the mop wipes the floor it sweeps, continuously dripping water from the water tank onto the mop, which is either hand-washable or disposable and replaceable.

[0004] The second method adds two rotating triangular mops to a regular robot vacuum. This includes a cleaning base station, which has both fresh water and wastewater tanks, while the robot itself lacks a water tank. The robot sweeps the entire house first, then mops. During mopping, it returns to the base station to clean the mop after a set period of time, then resumes cleaning at the same spot where it left off.

[0005] The above two traditional sweeping and mopping robots have the following main defects:

[0006] Type 1: The mop follows the robot through the floor, effectively only mopping each area once. The mop doesn't clean itself, and becomes increasingly dirty during each cleaning cycle. The water tank is small, so dripping water wets the mop unevenly, effectively wetting only the drip holes. This results in low mopping efficiency and poor results.

[0007] The second method uses a sweep-before-mop and reciprocating mopping method, requiring manual installation of the mop assembly after each sweep. The mop becomes increasingly dirty and the water content decreases between each return trip to the base station for cleaning. This not only slows down mopping speeds, but also complicates the structure and increases costs due to the complex base station. Summary of the Invention

[0008] Based on the above, a self-cleaning sweeping and mopping device and a self-cleaning sweeping and mopping robot are provided, which not only mops the floor quickly but also more cleanly, and has a simple structure, is easy to implement and has a low manufacturing cost.

[0009] A self-cleaning sweeping and mopping device comprises a volute, a roller brush, and a power device for driving the roller brush to rotate; the volute is provided with a sewage cleaning port, a sewage outlet, a tooth comb and a water inlet in sequence in the direction of rotation of the roller brush; the roller brush contacts the ground through the sewage cleaning port; the sewage outlet is used to connect to a vacuum cleaner; the tooth comb is used to remove garbage and foreign matter on the roller brush; the water inlet is used to connect to a water system to inject water into the roller brush. When the roller brush is working, the water inlet injects water or detergent into the roller brush through the externally connected water system. The wet roller brush rotates to take away foreign matter, garbage and dust on the ground. The tooth comb can peel off larger foreign matter and garbage on the roller brush, and smaller garbage and dust are mixed with the water / detergent on the roller brush to form sewage, which is thrown out under the action of centrifugal force when the roller brush rotates. The tooth comb can further act as a "snail tongue" to intercept the thrown sewage and flow it into the sewage outlet. At the same time, after intercepting the thrown sewage, the tooth comb can also flush down larger foreign matter and garbage on the tooth comb, and suck it into the sewage outlet together with the sewage. At this time, the water inlet continues to inject clean water or detergent into the roller brush to wet the roller comb again, completing a cycle, thereby achieving the purpose of self-cleaning of the roller brush.

[0010] In one embodiment, a volute tongue is further provided in the volute; the volute tongue is provided between the tooth comb and the water inlet, or on the tooth root of the tooth comb; the volute tongue is used to block the sewage thrown out when the roller brush rotates.

[0011] In one embodiment, a surface of the volute tongue close to the tooth comb is a smooth arc surface, so that the water flow can change direction more smoothly.

[0012] In one embodiment, a buffer reflux plate is further provided in the volute; the buffer reflux plate is provided between the water inlet and the sewage outlet; the buffer reflux plate is used to change the movement direction of the water thrown out when the roller brush rotates, so that the thrown water returns to the roller brush, solves the dripping problem after shutdown, and reduces the force of the clean water thrown out when the roller brush rotates to hit the ground, thereby reducing splashing.

[0013] In one embodiment, the buffer reflux plate is arranged close to the sewage cleaning port.

[0014] In one embodiment, a convex rib is further provided in the volute; the convex rib is provided between the water inlet and the sewage outlet; the convex rib is used to change the movement direction of the water thrown out when the roller brush rotates, so that the thrown out water returns to the roller brush, solves the dripping problem after shutdown, and reduces the force of the clean water thrown out when the roller brush rotates to hit the ground, thereby reducing splashing.

[0015] In one embodiment, the side of the rib that receives the water thrown out by the roller brush is an arc surface so as to change the direction of the water flow more smoothly.

[0016] In one embodiment, the rib is arranged close to the sewage outlet.

[0017] In one embodiment, the volute tongue is arranged horizontally and transversely; the tooth comb is arranged obliquely; and the angle between the tooth comb and the volute tongue is greater than or equal to 5 degrees.

[0018] In one embodiment, the volute tongue is arranged horizontally; the tooth comb is arranged obliquely; and the angle between the tooth comb and the volute tongue is greater than or equal to 5 degrees and less than or equal to 15 degrees.

[0019] In one embodiment, the tooth comb and the volute tongue are arranged close to the roller brush, and the distance between the volute tongue and the roller brush is smaller than the distance between the tooth comb and the roller brush.

[0020] In one embodiment, the distance between the tooth comb and the roller brush is between 1.5 and 2.5 mm; the distance between the snail tongue and the roller brush is between 0.5 and 1.5 mm.

[0021] In one embodiment, the distance between the tooth comb and the roller brush is between 1.5 and 2.5 mm; the distance between the snail tongue and the roller brush is between 1 and 2 mm.

[0022] In one embodiment, the distance between the tooth comb and the roller brush is between 1 and 2 mm; the distance between the volute tongue and the roller brush is between 0 and 1 mm.

[0023] In one embodiment, the tooth comb is arranged close to the roller brush, and the volute tongue is interference fit with the roller brush, that is, the volute tongue is pressed into the surface of the roller brush to a certain depth.

[0024] In one embodiment, the depth to which the volute tongue is pressed into the surface of the roller brush is between 0.5 and 2 mm;

[0025] In one embodiment, the depth to which the volute tongue is pressed into the surface of the roller brush is between 1 and 1.5 mm;

[0026] In one embodiment, the depth to which the volute tongue is pressed into the surface of the roller brush is between 1.5 and 2.5 mm.

[0027] In one embodiment, a water shoveling plate is provided on the edge of the sewage cleaning port close to the sewage outlet; the water shoveling plate is used to contact the ground and scoop up accumulated water.

[0028] In one embodiment, a brush is provided on the edge of the sewage cleaning port close to the sewage outlet; the brush is used to block the sewage and foreign matter thrown out by the roller brush from the gap between the sewage cleaning port and the ground.

[0029] The self-cleaning sweeping and mopping device provided above has the following characteristics: when the roller brush is working, the water inlet injects water or detergent into the roller brush through the externally connected water system, and the wet roller brush rotates to take away foreign matter, garbage and dust on the ground; the tooth comb can peel off larger foreign matter and garbage on the roller brush, and smaller garbage and dust are mixed with the water / detergent on the roller brush to form sewage, which is thrown out under the action of centrifugal force when the roller brush rotates; the tooth comb can further act as a "snail tongue" to intercept the thrown sewage and flow it into the sewage outlet; at the same time, after intercepting the thrown sewage, the tooth comb can also flush down larger foreign matter and garbage on the tooth comb, and suck it into the sewage outlet together with the sewage; at this time, the water inlet continues to inject clean water or detergent into the roller brush to wet the roller comb again, completing a cycle, thereby achieving the purpose of self-cleaning of the roller brush.

[0030] Based on the above content, the present application also provides a self-cleaning sweeping and mopping robot including the above-mentioned self-cleaning sweeping and mopping device.

[0031] A self-cleaning sweeping and mopping robot comprises a shell, a roller brush arranged in the shell, a power device for driving the roller brush to rotate, a fan, a filter, a water purification system and a motion system; the shell is provided with a volute for mounting the roller brush; the volute is provided with a sewage cleaning port, a sewage outlet, a tooth comb and a water inlet in sequence in the direction of rotation of the roller brush; the roller brush contacts the ground through the sewage cleaning port; the tooth comb is used to remove garbage and foreign matter on the roller brush; the shell is also provided with a sewage trough and an air intake duct; the sewage trough is connected to the sewage outlet through the air intake duct; the sewage trough is also connected to the air inlet of the fan; the filter is arranged between the sewage trough and the air inlet of the fan; the water purification system comprises a clean water tank; the clean water tank is connected to the water inlet to inject clean water or cleaning agent onto the roller brush; the clean water tank is arranged above the sewage trough and is sealed and detachably connected to the edge of the notch of the sewage trough; the motion system is used to drive the robot to move on the ground. When the robot is working, the water purification system injects clean water or detergent into the roller brush through the water inlet provided on the volute. The wet roller brush rotates to take away foreign matter, garbage and dust on the ground. The tooth comb can peel off larger foreign matter and garbage on the roller brush, and smaller garbage and dust are mixed with the water / detergent on the roller brush to form sewage, which is thrown out under the action of centrifugal force when the roller brush rotates. The tooth comb can further act as a "snail tongue" to intercept the thrown sewage and flow it into the sewage outlet. At the same time, after intercepting the thrown sewage, the tooth comb can also flush down larger foreign matter and garbage on the tooth comb, and suck it into the sewage outlet together with the sewage. At this time, the water purification system injects clean water or detergent into the roller brush through the water inlet provided on the volute to moisten the roller comb again, completing a cycle, thereby achieving the purpose of self-cleaning of the roller brush.

[0032] In one embodiment, a volute tongue is further provided in the volute; the volute tongue is provided between the tooth comb and the water inlet; the volute tongue is used to block the sewage thrown out when the roller brush rotates.

[0033] In one embodiment, a volute tongue is further provided in the volute; the volute tongue is provided on the tooth roots of the tooth comb; the volute tongue is used to block the sewage thrown out when the roller brush rotates.

[0034] In one embodiment, a surface of the volute tongue close to the tooth comb is a smooth arc surface, so that the water flow can change direction more smoothly.

[0035] In one embodiment, a separation portion is further provided in the shell; the separation portion is provided on the sewage suction flow path between the sewage outlet and the filter; the separation portion is used to separate liquid and / or solid substances.

[0036] In one embodiment, the separation portion is a bend at the end of the air intake duct. The airflow, mixed with sewage and foreign matter, is deflected at the bend. Due to inertia and air resistance, the heavier sewage and foreign matter enter the sewage tank at a certain angle and mix with the sewage therein. The lighter air is drawn into the filter, filtered, and then discharged through the fan.

[0037] In one embodiment, the separation portion is a right-angled bend at the end of the air intake duct. The airflow, mixed with sewage and foreign matter, undergoes a sharp turn at the right-angled bend. The heavier sewage and foreign matter, driven by inertia and air resistance, enter the sewage tank at a predetermined angle and mix with the sewage therein. The lighter air is drawn into the filter, filtered, and then discharged through the fan.

[0038] In one embodiment, the separation portion is a curved arc at the end of the air intake duct. The airflow, mixed with sewage and foreign matter, generates centrifugal force at the centrifugal curve. The larger sewage and foreign matter, due to inertia, contact the wall and slow down, converging and flowing into the sewage tank to mix with the sewage therein. The smaller air is squeezed in the middle, drawn into the filter, filtered, and discharged through the fan.

[0039] In one embodiment, the separation portion is a bend located downstream of the sewage tank inlet. The airflow, mixed with sewage and foreign matter, is deflected at the bend. Due to inertia and air resistance, the heavier sewage and foreign matter contact the sewage in the sewage tank at a certain angle and mix, while the lighter air is drawn into the filter, filtered, and discharged through the fan.

[0040] In one embodiment, the separation portion is a right-angled bend located downstream of the sewage tank inlet. The airflow, mixed with sewage and foreign matter, undergoes a sharp turn at the right-angled bend. Due to inertia and air resistance, the heavier sewage and foreign matter contact and mix with the sewage in the sewage tank at a specific angle, while the lighter air is drawn into the filter, filtered, and discharged through the fan.

[0041] In one embodiment, the separation portion is an arc-shaped centrifugal curve disposed downstream of the sewage tank inlet. The airflow, mixed with sewage and foreign matter, generates centrifugal force at the centrifugal curve. The larger sewage and foreign matter, due to inertia, contact the wall and slow down, converging and flowing down to mix with the sewage in the sewage tank. The smaller air is squeezed in the middle, further drawn into the filter, filtered, and discharged through the fan.

[0042] In one embodiment, the separation portion is a separation tank provided on the flow path between the filter and the sewage tank.

[0043] In one embodiment, the space of the separation tank is cylindrical, so that the eccentrically entering airflow mixed with sewage and foreign matter and garbage can rotate in the separation tank to generate centrifugal force.

[0044] In one embodiment, an air inlet is provided on the side wall of the separation tank; a return port is provided on the side wall or bottom surface of the separation tank; the position of the air inlet is higher than the position of the return port; the air inlet is connected to the slot of the sewage tank; and the return port is connected to the bottom of the sewage tank.

[0045] In one embodiment, a water shoveling plate is provided on the edge of the sewage cleaning port close to the sewage outlet; the water shoveling plate is used to contact the ground and scoop up accumulated water.

[0046] In one embodiment, a brush is provided on the edge of the sewage cleaning port close to the sewage outlet; the brush is used to block the sewage and foreign matter thrown out by the roller brush from the gap between the sewage cleaning port and the ground.

[0047] In one embodiment, the water purification system further includes a water suction pipe, a water pump, and a water supply pipe connected in sequence; the water suction pipe is connected to the clean water tank; the water supply pipe is connected to the water inlet, so that the clean water tank can inject clean water or cleaning agent onto the roller brush through the water suction pipe, the water pump, the water supply pipe and the water inlet connected in sequence.

[0048] In one embodiment, the water purification system further includes a liquid separator; the water pipe is connected to the water inlet via the liquid separator, i.e., the inlet of the liquid separator is connected to the outlet of the water pipe, and the outlet of the liquid separator is connected to the water inlet. In this embodiment, to ensure that clean water or cleaning agent is more evenly injected onto the roller brush, a preferred solution is to provide a plurality of water inlets on the volute along the axis of the roller brush, and to provide the same number of water outlets on the liquid separator connected to the water inlets, thereby dividing a stream of water into a plurality of parallel streams for even injection onto the roller brush.

[0049] In one embodiment, the shell is further provided with an air inlet, an air outlet and an air outlet; the filter is arranged on the flow path between the sewage tank and the air inlet; the air inlet and the air outlet are connected through the fan; and the air outlet is connected to the air outlet.

[0050] In one embodiment, a buffer reflux plate is further provided in the volute; the buffer reflux plate is provided between the water inlet and the sewage outlet; the buffer reflux plate is used to change the movement direction of the water thrown out when the roller brush rotates, so that the thrown water returns to the roller brush, solves the dripping problem after shutdown, and reduces the force of the clean water thrown out when the roller brush rotates to hit the ground, thereby reducing splashing.

[0051] In one embodiment, the buffer reflux plate is arranged close to the sewage cleaning port.

[0052] In one embodiment, a convex rib is further provided in the volute; the convex rib is provided between the water inlet and the sewage outlet; the convex rib is used to change the movement direction of the water thrown out when the roller brush rotates, so that the thrown out water returns to the roller brush, solves the dripping problem after shutdown, and reduces the force of the clean water thrown out when the roller brush rotates to hit the ground, thereby reducing splashing.

[0053] In one embodiment, the side of the convex rib that receives the water thrown out by the roller brush is an arc surface so as to change the direction of the water flow more smoothly.

[0054] In one embodiment, the rib is arranged close to the sewage outlet.

[0055] In one embodiment, the volute tongue is arranged horizontally and transversely; the tooth comb is arranged obliquely; and the angle between the tooth comb and the volute tongue is greater than or equal to 5 degrees.

[0056] In one embodiment, the volute tongue is arranged horizontally; the tooth comb is arranged obliquely; and the angle between the tooth comb and the volute tongue is greater than or equal to 5 degrees and less than or equal to 15 degrees.

[0057] In one embodiment, the tooth comb and the volute tongue are arranged close to the roller brush, and the distance between the volute tongue and the roller brush is smaller than the distance between the tooth comb and the roller brush.

[0058] In one embodiment, the distance between the tooth comb and the roller brush is between 1.5 and 2.5 mm; the distance between the snail tongue and the roller brush is between 0.5 and 1.5 mm.

[0059] In one embodiment, the distance between the tooth comb and the roller brush is between 1.5 and 2.5 mm; the distance between the snail tongue and the roller brush is between 1 and 2 mm.

[0060] In one embodiment, the distance between the tooth comb and the roller brush is between 1 and 2 mm; the distance between the volute tongue and the roller brush is between 0 and 1 mm.

[0061] In one embodiment, the tooth comb is arranged close to the roller brush, and the volute tongue is interference fit with the roller brush, that is, the volute tongue is pressed into the surface of the roller brush to a certain depth.

[0062] In one embodiment, the depth to which the volute tongue is pressed into the surface of the roller brush is between 0.5 and 2 mm;

[0063] In one embodiment, the depth to which the volute tongue is pressed into the surface of the roller brush is between 1 and 1.5 mm;

[0064] In one embodiment, the depth to which the volute tongue is pressed into the surface of the roller brush is between 1.5 and 2.5 mm.

[0065] In one embodiment, a navigation device is further included; the navigation device is used to obtain obstacle information around the robot.

[0066] In one embodiment, the navigation device is a laser navigation radar.

[0067] In one embodiment, a radar window is further provided on the shell, so that when the navigation device is installed inside the shell, the navigation device can obtain external obstacle information of the robot through the radar window.

[0068] The self-cleaning sweeping and mopping robot provided above comprises a shell, a roller brush arranged in the shell, a power device for driving the roller brush to rotate, a fan, a filter, a water purification system and a motion system; the shell is provided with a volute for mounting the roller brush; the volute is provided with a sewage cleaning port, a sewage outlet, a tooth comb and a water inlet in sequence in the direction of rotation of the roller brush; the roller brush contacts the ground through the sewage cleaning port; the tooth comb is used to remove garbage and foreign matter on the roller brush; the shell is also provided with a sewage trough and an air intake duct; the sewage trough is connected to the sewage outlet through the air intake duct; the sewage trough is also connected to the air inlet of the fan; the filter is arranged between the sewage trough and the air inlet of the fan; the water purification system comprises a clean water tank; the clean water tank is connected to the water inlet to inject clean water or cleaning agent onto the roller brush; the clean water tank is arranged above the sewage trough and is sealed and detachably connected to the edge of the notch of the sewage trough; the motion system is used to drive the robot to move on the ground. The cleaning system then injects clean water or detergent into the roller brush through the water inlet provided on the volute, and the wet roller brush rotates to remove foreign matter, garbage and dust on the ground. The tooth comb can peel off larger foreign matter and garbage on the roller brush, and smaller garbage and dust are mixed with the water / detergent on the roller brush to form sewage, which is thrown out under the action of centrifugal force when the roller brush rotates. The tooth comb can further act as a "snail tongue" to intercept the sewage thrown out and flow it into the sewage outlet. At the same time, after intercepting the sewage thrown out, the tooth comb can also flush down larger foreign matter and garbage on the tooth comb, and suck it into the sewage outlet together with the sewage. At this time, the cleaning system injects clean water or detergent into the roller brush through the water inlet provided on the volute, and wets the roller comb again, completing a cycle, thereby achieving the purpose of self-cleaning of the roller brush.

[0069] According to the above content, based on the same inventive concept, the present application also provides another form of a self-cleaning sweeping and mopping robot.

[0070] A self-cleaning sweeping and mopping robot comprises a frame, a sweeping and mopping device mounted on the frame, a sewage collecting system, a motion system and a water purification system; the sweeping and mopping device comprises a volute, a roller brush arranged in the volute, and a power device for driving the roller brush to rotate; the volute is provided with a sewage cleaning port, a sewage outlet, a tooth comb and a water inlet in sequence in the direction of rotation of the roller brush; the roller brush contacts the ground through the sewage cleaning port; the tooth comb is used to remove garbage and foreign matter on the roller brush; the sewage collecting system comprises a sewage suction pipe, a sewage tank, a filter and a fan that are connected in sequence; the sewage outlet is connected to the sewage suction pipe; the sewage tank is used to hold sewage and / or garbage sucked in by the sewage suction pipe; the water purification system comprises a clean water tank; the clean water tank is connected to the water inlet to inject clean water or cleaning agent onto the roller brush; the motion system is used to drive the frame to move on the ground.

[0071] In one embodiment, a volute tongue is further provided in the volute; the volute tongue is provided between the tooth comb and the water inlet, or on the tooth root of the tooth comb; the volute tongue is used to block the sewage thrown out when the roller brush rotates.

[0072] In one embodiment, a surface of the volute tongue close to the tooth comb is a smooth arc surface, so that the water flow can change direction more smoothly.

[0073] In one embodiment, the sewage collection system further includes a separator; the separator is arranged on the sewage suction flow path between the sewage outlet and the filter; the separator is used to separate liquid and / or solid substances in the sewage suction flow path.

[0074] In one embodiment, the separator is one or a combination of two or more of a gas-liquid separator, a solid-gas separator, and a solid-liquid separator.

[0075] In one embodiment, the separator is provided with an air inlet and a return port; the position of the air inlet is higher than that of the return port; the air inlet is connected to the upper end or top of the sewage tank; and the return port is connected to the lower end or bottom of the sewage tank.

[0076] In one embodiment, a water shoveling plate is provided on the edge of the sewage cleaning port close to the sewage outlet; the water shoveling plate is used to contact the ground and scoop up accumulated water.

[0077] In one embodiment, a brush is provided on the edge of the sewage cleaning port close to the sewage outlet; the brush is used to block the sewage and foreign matter thrown out by the roller brush from the gap between the sewage cleaning port and the ground.

[0078] In one embodiment, the water purification system further includes a water suction pipe, a water pump, and a water supply pipe connected in sequence; the water suction pipe is connected to the clean water tank; the water supply pipe is connected to the water inlet, so that the clean water tank can inject clean water or cleaning agent onto the roller brush through the water suction pipe, the water pump, the water supply pipe and the water inlet connected in sequence.

[0079] In one embodiment, the water purification system further includes a liquid separator; the water pipe is connected to the water inlet via the liquid separator, i.e., the inlet of the liquid separator is connected to the outlet of the water pipe, and the outlet of the liquid separator is connected to the water inlet. In this embodiment, to ensure that clean water or cleaning agent is more evenly injected onto the roller brush, a preferred solution is to provide a plurality of water inlets on the volute along the axis of the roller brush, and to provide the same number of water outlets on the liquid separator connected to the water inlets, thereby dividing a stream of water into a plurality of parallel streams for even injection onto the roller brush.

[0080] In one embodiment, the sewage collection system further includes an air inlet duct; one end of the air inlet duct is connected to the air inlet of the fan, and the other end is connected to the sewage tank through the filter.

[0081] In one embodiment, the sewage collection system further includes an air outlet duct; the air outlet duct is connected to the air outlet of the fan.

[0082] In one embodiment, a buffer reflux plate is further provided in the volute; the buffer reflux plate is provided between the water inlet and the sewage outlet; the buffer reflux plate is used to change the movement direction of the water thrown out when the roller brush rotates, so that the thrown water returns to the roller brush, solves the dripping problem after shutdown, and reduces the force of the clean water thrown out when the roller brush rotates to hit the ground, thereby reducing splashing.

[0083] In one embodiment, the buffer reflux plate is arranged close to the sewage cleaning port.

[0084] In one embodiment, a convex rib is further provided in the volute; the convex rib is provided between the water inlet and the sewage outlet; the convex rib is used to change the movement direction of the water thrown out when the roller brush rotates, so that the thrown out water returns to the roller brush, solves the dripping problem after shutdown, and reduces the force of the clean water thrown out when the roller brush rotates to hit the ground, thereby reducing splashing.

[0085] In one embodiment, the side of the convex rib that receives the water thrown out by the roller brush is an arc surface so as to change the direction of the water flow more smoothly.

[0086] In one embodiment, the rib is arranged close to the sewage outlet.

[0087] In one embodiment, the volute tongue is arranged horizontally and transversely; the tooth comb is arranged obliquely; and the angle between the tooth comb and the volute tongue is greater than or equal to 5 degrees.

[0088] In one embodiment, the volute tongue is arranged horizontally; the tooth comb is arranged obliquely; and the angle between the tooth comb and the volute tongue is greater than or equal to 5 degrees and less than or equal to 15 degrees.

[0089] In one embodiment, the tooth comb and the volute tongue are arranged close to the roller brush, and the distance between the volute tongue and the roller brush is smaller than the distance between the tooth comb and the roller brush.

[0090] In one embodiment, the distance between the tooth comb and the roller brush is between 1.5 and 2.5 mm; the distance between the snail tongue and the roller brush is between 0.5 and 1.5 mm.

[0091] In one embodiment, the distance between the tooth comb and the roller brush is between 1.5 and 2.5 mm; the distance between the snail tongue and the roller brush is between 1 and 2 mm.

[0092] In one embodiment, the distance between the tooth comb and the roller brush is between 1 and 2 mm; the distance between the volute tongue and the roller brush is between 0 and 1 mm.

[0093] In one embodiment, the tooth comb is arranged close to the roller brush, and the volute tongue is interference fit with the roller brush, that is, the volute tongue is pressed into the surface of the roller brush to a certain depth.

[0094] In one embodiment, the depth to which the volute tongue is pressed into the surface of the roller brush is between 0.5 and 2 mm;

[0095] In one embodiment, the depth to which the volute tongue is pressed into the surface of the roller brush is between 1 and 1.5 mm;

[0096] In one embodiment, the depth to which the volute tongue is pressed into the surface of the roller brush is between 1.5 and 2.5 mm.

[0097] In one embodiment, a navigation device is further included; the navigation device is used to obtain obstacle information around the robot.

[0098] In one embodiment, the navigation device is a laser navigation radar.

[0099] The self-cleaning sweeping and mopping robot provided above has the following characteristics: when the robot is working, the water purification system injects clean water or detergent into the roller brush through the water inlet provided on the volute, and the wet roller brush rotates to take away foreign matter, garbage and dust on the ground; the tooth comb can peel off larger foreign matter and garbage on the roller brush, and smaller garbage and dust are mixed with the water / detergent on the roller brush to form sewage, which is thrown out under the action of centrifugal force when the roller brush rotates; the tooth comb can further act as a "snail tongue" to intercept the thrown sewage and flow it into the sewage outlet; at the same time, after intercepting the thrown sewage, the tooth comb can also flush down larger foreign matter and garbage on the tooth comb, and suck it into the sewage outlet together with the sewage; at this time, the water purification system injects clean water or detergent into the roller brush through the water inlet provided on the volute to moisten the roller comb again, completing a cycle, thereby achieving the purpose of self-cleaning of the roller brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0100] Figure 1 A schematic cross-sectional view of a self-cleaning sweeping and mopping device according to an embodiment;

[0101] Figure 2 This is a schematic cross-sectional view of a self-cleaning sweeping and mopping robot provided in one embodiment.

[0102] Explanation of the reference numerals: 100. Sweeping and mopping device; 111. Sewage outlet; 112. Sewage outlet; 113. Tooth comb; 114. Snail tongue; 115. Water inlet; 116. Buffer reflux plate; 120. Roller brush; 130. Water shoveling plate; 210. Air intake duct; 211. Centrifugal bend; 220. Sewage trough; 230. Separation trough; 231. Air inlet; 232. Reflux outlet; 241. Fan; 242. Air inlet duct; 243. Air outlet duct; 310. Clean water tank; 320. Water suction pipe; 330. Water pump; 340. Water supply pipe; 350. Liquid distributor; 400. Sealing ring; 10. Housing; 11. Air outlet; 12. Radar window. DETAILED DESCRIPTION

[0103] In this patent document, the following discussion Figure 1-2 The various embodiments used to describe the principles or methods of the present disclosure are for illustration only and should not be construed in any way as limiting the scope of the present disclosure. With reference to the accompanying drawings, preferred embodiments of the present disclosure will be described below. In the following description, detailed descriptions of well-known functions or configurations will be omitted so as not to obscure the subject matter of the present disclosure with unnecessary details. Moreover, the terms used herein will be defined according to the functions of the present invention. Therefore, the terms may vary depending on the intention or usage of the user or operator. Therefore, the terms used herein must be understood based on the description made herein.

[0104] A self-cleaning sweeping and mopping device, such as Figure 1 As shown, the volute includes a volute, a roller brush 120, and a power device for rotating the roller brush 120. The volute is provided with a cleaning port 111, a waste outlet 112, a tooth comb 113, and a water inlet 115, in the direction of rotation of the roller brush 120. The roller brush 120 contacts the ground through the cleaning port 111. The waste outlet 112 is connected to the vacuum cleaner. The tooth comb 113 is used to remove garbage and foreign matter from the roller brush 120. The water inlet 115 is connected to the water system to inject water into the roller brush 120. At this time, the water inlet 115 continues to inject clean water or detergent into the roller brush 120 to wet the roller comb again, completing a cycle, thereby achieving the purpose of self-cleaning of the roller brush 120.

[0105] In one embodiment, Figure 1 As shown, a volute tongue 114 is further provided in the volute. The volute tongue 114 is provided between the tooth comb 113 and the water inlet 115, or is provided on the tooth root of the tooth comb 113. The volute tongue 114 is used to block the sewage thrown out when the roller brush 120 rotates.

[0106] In one embodiment, a surface of the volute tongue 114 close to the tooth comb 113 is a smooth arc surface, so that the water flow can change direction more smoothly.

[0107] In one embodiment, Figure 1 As shown, a buffer return plate 116 is also installed in the volute. It is located between the water inlet 115 and the sewage outlet 111. This plate redirects the water thrown out by the rotating brush 120, returning it to the brush 120. This solves the problem of dripping after shutdown and reduces the impact of the clean water thrown out by the rotating brush 120 on the ground, thus reducing splashing.

[0108] In one embodiment, Figure 1 As shown, the buffer reflux plate 116 is arranged near the sewage cleaning port 111 .

[0109] In one embodiment, Figure 2 As shown, the volute is also provided with a rib (which functions as a buffer return plate 116). The rib (which functions as a buffer return plate 116) is located between the water inlet 115 and the sewage outlet 111. The rib (which functions as a buffer return plate 116) is used to redirect the movement of water thrown out by the rotating roller brush 120, allowing the thrown water to return to the roller brush 120, thereby resolving the problem of dripping after shutdown. It also reduces the force of the clean water thrown out by the rotating roller brush 120 on the ground, reducing splashing.

[0110] In one embodiment, Figure 2 As shown, the side of the rib (which functions as the buffer return plate 116 ) that receives the water thrown out by the roller brush 120 is an arc surface so as to change the direction of the water flow more smoothly.

[0111] In one embodiment, Figure 2 As shown, the rib strip (its function is equivalent to the buffer return plate 116 ) is arranged near the sewage cleaning port 111 .

[0112] In one embodiment, the volute tongue 114 is arranged horizontally and the comb 113 is arranged obliquely.

[0113] In one embodiment, the volute tongue 114 is arranged horizontally, and the tooth comb 113 is arranged obliquely, and the angle between the tooth comb 113 and the volute tongue 114 is greater than or equal to 5 degrees.

[0114] In one embodiment, the volute tongue 114 is arranged horizontally, and the tooth comb 113 is arranged obliquely. The angle between the tooth comb 113 and the volute tongue 114 is greater than or equal to 5 degrees and less than or equal to 15 degrees.

[0115] In one embodiment, Figure 1 or Figure 2 As shown, the tooth comb 113 and the volute tongue 114 are arranged close to the roller brush 120 , and the distance between the volute tongue 114 and the roller brush 120 is smaller than the distance between the tooth comb 113 and the roller brush 120 .

[0116] In one embodiment, the distance between the comb 113 and the roller brush 120 is between 1.5 and 2.5 mm, and the distance between the volute tongue 114 and the roller brush 120 is between 0.5 and 1.5 mm.

[0117] In one embodiment, the distance between the comb 113 and the roller brush 120 is between 1.5 and 2.5 mm, and the distance between the tongue 114 and the roller brush 120 is between 1 and 2 mm.

[0118] In one embodiment, the distance between the comb 113 and the roller brush 120 is between 1 and 2 mm, and the distance between the volute tongue 114 and the roller brush 120 is between 0 and 1 mm.

[0119] In one embodiment, Figure 2 As shown, the tooth comb 113 is arranged close to the roller brush 120 , and the volute tongue 114 is interference fit with the roller brush 120 , that is, the volute tongue 114 is pressed into the surface of the roller brush 120 to a certain depth.

[0120] In one embodiment, the depth to which the volute tongue 114 is pressed into the surface of the roller brush 120 is between 0.5 and 2 mm.

[0121] In one embodiment, the depth to which the volute tongue 114 is pressed into the surface of the roller brush 120 is between 1 and 1.5 mm.

[0122] In one embodiment, the depth to which the volute tongue 114 is pressed into the surface of the roller brush 120 is between 1.5 and 2.5 mm.

[0123] In one embodiment, Figure 1 or Figure 2 As shown, a water shoveling plate 130 is provided on the edge of the sewage cleaning port 111 close to the sewage outlet 112. The water shoveling plate 130 is used to contact the ground and scoop up accumulated water.

[0124] In one embodiment, a brush (not shown) is provided on the edge of the sewage outlet 111 near the sewage outlet 112. The brush (not shown) is used to block the sewage and foreign matter thrown out by the roller brush 120 from the gap between the sewage outlet 111 and the ground.

[0125] The self-cleaning sweeping and mopping device provided above has the following advantages: when the roller brush 120 is working, the water inlet 115 injects water or detergent into the roller brush 120 through the externally connected water system. The wet roller brush 120 rotates and takes away foreign matter, garbage and dust on the ground. The tooth comb 113 can peel off larger foreign matter and garbage on the roller brush 120, and smaller garbage and dust are mixed with the water / detergent on the roller brush 120 to form sewage, which is thrown out under the action of centrifugal force when the roller brush 120 rotates. The tooth comb 113 can further act as a "snail tongue 114" to intercept the thrown sewage and flow it into the sewage outlet 112. At the same time, after intercepting the thrown sewage, the tooth comb 113 can also flush down larger foreign matter and garbage on the tooth comb 113 and suck it into the sewage outlet 112 together with the sewage. At this time, the water inlet 115 continues to inject clean water or detergent into the roller brush 120 to wet the roller comb again, completing a cycle, thereby achieving the purpose of self-cleaning of the roller brush 120.

[0126] Based on the above content, the present application also provides a self-cleaning sweeping and mopping robot including the above-mentioned self-cleaning sweeping and mopping device.

[0127] A self-cleaning sweeping and mopping robot, such as Figure 2As shown, the system includes a housing 10, a roller brush 120 disposed within the housing 10, a power device for rotating the roller brush 120, a fan 241, a filter, a water purification system, and a motion system. The housing 10 is provided with a volute for mounting the roller brush 120. The volute is provided with a cleaning port 111, a sewage outlet 112, a tooth comb 113, and a water inlet 115, sequentially arranged in the direction of rotation of the roller brush 120. The roller brush 120 contacts the ground through the cleaning port 111. The tooth comb 113 is used to remove garbage and foreign matter from the roller brush 120. The housing 10 is also provided with a sewage trough 220 and an air intake duct 210. The sewage trough 220 is connected to the sewage outlet 112 via the air intake duct 210. The sewage trough 220 is also connected to the air inlet of the fan 241. The filter is disposed between the sewage trough 220 and the air inlet of the fan 241. The water purification system includes a clean water tank 310. The clean water tank 310 is connected to the water inlet 115 to inject clean water or detergent into the roller brush 120. The clean water tank 310 is positioned above the sewage tank 220 and is sealed and removably connected to the edge of the notch of the sewage tank 220. The motion system is used to move the robot on the ground. The cleaning system then injects clean water or detergent into the roller brush 120 through the water inlet 115 provided on the volute, and wets the roller brush 120 again, completing a cycle and achieving the purpose of self-cleaning of the roller brush 120.

[0128] In one embodiment, Figure 1 or Figure 2 As shown, a volute tongue 114 is further provided in the volute. The volute tongue 114 is provided between the tooth comb 113 and the water inlet 115. The volute tongue 114 is used to block the sewage thrown out when the roller brush 120 rotates.

[0129] In one embodiment, a volute tongue 114 is further provided in the volute. The volute tongue 114 is provided on the tooth roots of the tooth comb 113. The volute tongue 114 is used to block the sewage thrown out when the roller brush 120 rotates.

[0130] In one embodiment, a surface of the volute tongue 114 close to the tooth comb 113 is a smooth arc surface, so that the water flow can change direction more smoothly.

[0131] In one embodiment, Figure 2 As shown, a separation unit is further provided in the housing 10. The separation unit is provided on the sewage suction flow path between the sewage outlet 112 and the filter. The separation unit is used to separate liquid and / or solid substances.

[0132] In one embodiment, Figure 2 As shown, the separation section is a bend 211 at the end of the air intake duct 210. The airflow, mixed with sewage and foreign matter, is deflected at bend 211. Due to inertia and air resistance, the heavier sewage and foreign matter enter the sewage tank 220 at a certain angle and mix with the sewage there. The lighter air is drawn into the filter, filtered, and then discharged into the blower 241.

[0133] In one embodiment, the separation portion is a right-angled bend 211 at the end of the air intake duct 210. The airflow, mixed with sewage and foreign matter, undergoes a sharp turn at the right-angled bend. The heavier sewage and foreign matter, driven by inertia and air resistance, enter the sewage tank 220 at a predetermined angle and mix with the sewage there. The lighter air is drawn into the filter, filtered, and then discharged through the blower 241.

[0134] In one embodiment, the separation portion is a curved arc 211 at the end of the air intake duct 210. The airflow, mixed with sewage and foreign matter, generates centrifugal force at the curved arc 211. The heavier sewage and foreign matter, due to inertia, contact the wall and slow down, converging and flowing into the sewage tank 220 where they mix. The lighter air is squeezed in the middle and is further drawn into the filter for filtration before being discharged into the blower 241.

[0135] In one embodiment, the separation portion is a bend 211 located downstream of the sewage inlet of the sewage trough 220. The airflow mixed with sewage and foreign matter is deflected at the bend 211. Due to inertia and air resistance, the larger sewage and foreign matter contact the sewage in the sewage trough 220 at a certain angle and mix, while the smaller air is drawn into the filter, filtered, and discharged through the fan 241.

[0136] In one embodiment, the separation section is a right-angled bend located downstream of the sewage inlet of the sewage trough 220. The airflow, mixed with sewage and foreign matter, undergoes a sharp turn at the bend. Due to inertia and air resistance, the heavier sewage and foreign matter contact the sewage in the sewage trough 220 at a certain angle and mix, while the lighter air is drawn into the filter, filtered, and then discharged through the fan 241.

[0137] In one embodiment, the separation section is an arc-shaped bend located downstream of the sewage inlet of the sewage trough 220. The airflow, mixed with sewage and foreign matter, generates centrifugal force at the bend. The heavier sewage and foreign matter, due to inertia, contact the wall and slow down, converging and flowing down to mix with the sewage in the sewage trough 220. The lighter air is squeezed in the middle, drawn into the filter, filtered, and discharged into the blower 241.

[0138] In one embodiment, Figure 2 As shown, a sealing ring 400 is provided between the notch of the sewage tank 210 and the clean water tank 310 .

[0139] In one embodiment, Figure 2 As shown, the sewage tank 210 and the clean water tank 310 are further connected by a hinge, so that the clean water tank 310 can be rotated about a rotating shaft to separate from the slot of the sewage tank 210.

[0140] In one embodiment, Figure 2 As shown, the sewage tank 210 and the clean water tank 310 are also connected by a snap fastener, so that the clean water tank 310 is fixed when covering the notch of the sewage tank 210 .

[0141] In one embodiment, Figure 2 As shown, the separation portion is a separation tank 230 provided on the flow path between the filter and the sewage tank 220 .

[0142] In one embodiment, Figure 2 As shown, the space of the separation tank 230 is cylindrical, so that the airflow mixed with sewage and foreign matter and garbage that enters eccentrically can rotate in the separation tank 230 to generate centrifugal force.

[0143] In one embodiment, Figure 2 As shown, an air inlet 231 is formed on the sidewall of the separation tank 230. A return port 232 is formed on the sidewall or bottom of the separation tank 230. The air inlet 231 is positioned higher than the return port 232. The air inlet 231 communicates with the slot of the sewage tank 220. The return port 232 communicates with the bottom of the sewage tank 220.

[0144] In one embodiment, Figure 2 As shown, a water shoveling plate 130 is provided on the edge of the sewage cleaning port 111 close to the sewage outlet 112. The water shoveling plate 130 is used to contact the ground and scoop up accumulated water.

[0145] In one embodiment, a brush (not shown) is provided on the edge of the sewage outlet 111 near the sewage outlet 112. The brush (not shown) is used to block the sewage and foreign matter thrown out by the roller brush 120 from the gap between the sewage outlet 111 and the ground.

[0146] In one embodiment, Figure 2 As shown, the water purification system further includes a water suction pipe 320, a water pump 330, and a water delivery pipe 340, which are sequentially connected. The water suction pipe 320 is connected to the clean water tank 310. The water delivery pipe 340 is connected to the water inlet 115, so that the clean water tank 310 can inject clean water or cleaning agent onto the roller brush 120 through the sequentially connected water suction pipe 320, water pump 330, water delivery pipe 340, and water inlet 115.

[0147] In one embodiment, Figure 2 As shown, the water purification system further includes a liquid separator 350. The water pipe 340 is connected to the water inlet 115 through the liquid separator 350, that is, the inlet of the liquid separator 350 is connected to the outlet of the water pipe 340, and the outlet of the liquid separator 350 is connected to the water inlet 115. In this embodiment, in order to ensure that clean water or cleaning agent is more evenly injected into the roller brush 120, a preferred solution is to provide a plurality of water inlets 115 on the volute along the axial direction of the roller brush 120, and to provide the same number of water outlets on the liquid separator 350 to communicate with the water inlet 115, so that a stream of water is divided into a plurality of streams side by side and evenly injected into the roller brush 120.

[0148] In one embodiment, Figure 2 As shown, the housing 10 is further provided with an air inlet duct 242, an air outlet duct 243, and an air outlet 11. A filter is provided on the flow path between the sewage tank 220 and the air inlet duct 242. The air inlet duct 242 and the air outlet duct 243 are connected via a fan 241. The air outlet duct 243 is connected to the air outlet 11.

[0149] In one embodiment, Figure 2 As shown, a buffer return plate 116 is also installed in the volute. It is located between the water inlet 115 and the sewage outlet 111. This plate redirects the water thrown out by the rotating brush 120, returning it to the brush 120. This solves the problem of dripping after shutdown and reduces the impact of the clean water thrown out by the rotating brush 120 on the ground, thus reducing splashing.

[0150] In one embodiment, Figure 2 As shown, the buffer reflux plate 116 is arranged near the sewage cleaning port 111 .

[0151] In one embodiment, Figure 2 As shown, the volute is also equipped with a rib (which functions as a buffer return plate 116). The rib is located between the water inlet 115 and the sewage outlet 111. The rib is used to redirect the water thrown out by the rotating roller brush 120, allowing it to return to the roller brush 120. This solves the problem of dripping after shutdown and reduces the impact of the clean water thrown out by the rotating roller brush 120 on the ground, thereby reducing splashing.

[0152] In one embodiment, Figure 2 As shown, the side of the rib (which functions as the buffer return plate 116 ) that receives the water thrown out by the roller brush 120 is an arc surface so as to change the direction of the water flow more smoothly.

[0153] In one embodiment, Figure 2 As shown, the ribs (which function as the buffer return plate 116 ) are integrally provided with the volute 110 .

[0154] In one embodiment, Figure 2 As shown, the rib strip (its function is equivalent to the buffer return plate 116 ) is arranged near the sewage cleaning port 111 .

[0155] In one embodiment, the volute tongue 114 is arranged horizontally, and the tooth comb 113 is arranged obliquely, and the angle between the tooth comb 113 and the volute tongue 114 is greater than or equal to 5 degrees.

[0156] In one embodiment, the volute tongue 114 is arranged horizontally, and the tooth comb 113 is arranged obliquely. The angle between the tooth comb 113 and the volute tongue 114 is greater than or equal to 5 degrees and less than or equal to 15 degrees.

[0157] In one embodiment, Figure 2 As shown, the tooth comb 113 and the volute tongue 114 are arranged close to the roller brush 120 , and the distance between the volute tongue 114 and the roller brush 120 is smaller than the distance between the tooth comb 113 and the roller brush 120 .

[0158] In one embodiment, the distance between the comb 113 and the roller brush 120 is between 1.5 and 2.5 mm, and the distance between the volute tongue 114 and the roller brush 120 is between 0.5 and 1.5 mm.

[0159] In one embodiment, the distance between the comb 113 and the roller brush 120 is between 1.5 and 2.5 mm, and the distance between the tongue 114 and the roller brush 120 is between 1 and 2 mm.

[0160] In one embodiment, the distance between the comb 113 and the roller brush 120 is between 1 and 2 mm, and the distance between the volute tongue 114 and the roller brush 120 is between 0 and 1 mm.

[0161] In one embodiment, the tooth comb 113 is disposed close to the roller brush 120 , and the volute tongue 114 is interference fit with the roller brush 120 , that is, the volute tongue 114 is pressed into the surface of the roller brush 120 to a certain depth.

[0162] In one embodiment, the depth to which the volute tongue 114 is pressed into the surface of the roller brush 120 is between 0.5 and 2 mm.

[0163] In one embodiment, the depth to which the volute tongue 114 is pressed into the surface of the roller brush 120 is between 1 and 1.5 mm.

[0164] In one embodiment, the depth to which the volute tongue 114 is pressed into the surface of the roller brush 120 is between 1.5 and 2.5 mm.

[0165] In one embodiment, the robot further includes a navigation device for obtaining obstacle information around the robot.

[0166] In one embodiment, the navigation device is a laser navigation radar.

[0167] In one embodiment, a radar window 12 is further provided on the housing 10 , so that when a navigation device is installed inside the housing 10 , the navigation device can obtain external obstacle information of the robot through the radar window 12 .

[0168] In one embodiment, the clean water tank 310 is connected to the edge of the sewage tank 220 via a hinge.

[0169] In order to more clearly describe the present invention, the structure and principle of the present application are further described below with a specific embodiment. It should be noted that the following description is only for the purpose of facilitating understanding and should not be construed as a restrictive interpretation of the scope of the present application. Figure 2 As shown:

[0170] The cleaning structure (including the sweeping and mopping device 100) consists of a power unit, a volute, a roller brush 120 disposed within the volute, a tooth comb 113, a volute tongue 114, a rubber water shovel disposed at the edge of the cleaning port 111, a water inlet device (including a water pump 330, a liquid separator 350, and a nozzle), a sewage tank (which functions as a sewage trough 220), and a sewage suction pipe (which functions as an air intake duct 210). The power unit drives the roller brush 120 to rotate, the tooth comb 113 and volute tongue 114 scrape sewage and debris off the roller brush 120, and the rubber water shovel scoops up sewage and debris from the ground. The sewage and debris are then sucked along the sewage suction pipe (which functions as an air intake duct 210) and into the sewage tank (which functions as a sewage trough 220). The water inlet device sprays water onto the roller brush 120 at a constant frequency.

[0171] Water tank structure: Consists of a clean water tank 310, a sewage tank (which functions as a sewage tank 220), a hinge, and a HEPA cover. The clean water tank 310 and the sewage tank (which functions as a sewage tank 220) are arranged vertically, with the bottom of the clean water tank 310 serving as the top surface of the sewage tank (which functions as a sewage tank 220). The clean water tank 310 and the sewage tank (which functions as a sewage tank 220) are connected by hinges and snaps. The sewage tank (which functions as a sewage tank 220) has a sewage inlet at the front and an air outlet 11 at the rear. A fan 241 is connected to the air outlet 11 to create negative pressure in the water tank, sucking sewage and debris into the sewage tank (which functions as a sewage tank 220) through a sewage suction pipe (which functions as an air intake duct 210).

[0172] LiDAR: A built-in LiDAR is used, and the robot shell is hollowed out in front of the LiDAR (forming a radar window 12), providing a 220° laser emission angle.

[0173] The self-cleaning sweeping and mopping robot provided above includes a housing 10, a roller brush 120 disposed within the housing 10, a power device for rotating the roller brush 120, a fan 241, a filter, a water purification system, and a motion system. The housing 10 is provided with a volute for mounting the roller brush 120. The volute is provided with a cleaning port 111, a sewage outlet 112, a tooth comb 113, and a water inlet 115, sequentially arranged in the direction of rotation of the roller brush 120. The roller brush 120 contacts the ground through the cleaning port 111. The tooth comb 113 is used to remove garbage and foreign matter from the roller brush 120. The housing 10 is also provided with a sewage trough 220 and an air intake duct 210. The sewage trough 220 is connected to the sewage outlet 112 via the air intake duct 210. The sewage trough 220 is also connected to the air inlet of the fan 241. The filter is disposed between the sewage trough 220 and the air inlet of the fan 241. The water purification system includes a clean water tank 310. The clean water tank 310 is connected to the water inlet 115 to inject clean water or detergent into the roller brush 120. The clean water tank 310 is positioned above the sewage tank 220 and is sealed and removably connected to the edge of the notch of the sewage tank 220. The motion system is used to move the robot on the ground. The cleaning system then injects clean water or detergent into the roller brush 120 through the water inlet 115 provided on the volute, and wets the roller brush 120 again, completing a cycle and achieving the purpose of self-cleaning of the roller brush 120.

[0174] According to the above content, based on the same inventive concept, the present application also provides another form of a self-cleaning sweeping and mopping robot.

[0175] A self-cleaning sweeping and mopping robot comprises a frame (which functions similarly to a housing 10), a sweeping and mopping device 100 mounted on the frame (which functions similarly to the housing 10), a sewage collection system, a motion system, and a water purification system. The sweeping and mopping device 100 comprises a volute, a roller brush 120 disposed within the volute, and a power device for driving the roller brush 120 to rotate. The volute is provided with a sewage cleaning port 111, a sewage outlet 112, a tooth comb 113, and a water inlet 115 in sequence in the direction of rotation of the roller brush 120. The roller brush 120 contacts the ground through the sewage cleaning port 111. The tooth comb 113 is used to remove garbage and foreign matter from the roller brush 120. The sewage collection system comprises a sewage suction pipe (which functions equivalently to the air intake duct 210), a sewage tank (which functions equivalently to the sewage tank 220), a filter, and a fan 241, which are connected in sequence. The sewage outlet 112 is connected to the sewage suction pipe (which functions equivalently to the air intake duct 210). The sewage tank (which functions similarly to the sewage trough 220) is used to store sewage and / or garbage drawn in by the sewage suction pipe (which functions similarly to the air intake duct 210). The water purification system includes a clean water tank 310. Clean water tank 310 is connected to the water inlet 115 to supply clean water or cleaning agent to the roller brush 120. The motion system is used to move the frame (which functions similarly to the housing 10) on the ground.

[0176] In one embodiment, a volute tongue 114 is further provided in the volute. The volute tongue 114 is provided between the tooth comb 113 and the water inlet 115, or is provided on the tooth root of the tooth comb 113. The volute tongue 114 is used to block the sewage thrown out when the roller brush 120 rotates.

[0177] In one embodiment, a surface of the volute tongue 114 close to the tooth comb 113 is a smooth arc surface, so that the water flow can change direction more smoothly.

[0178] In one embodiment, the sewage collection system further includes a separator (which functions as a separation tank 230). The separator (which functions as a separation tank 230) is disposed in the sewage suction flow path between the sewage outlet 112 and the filter. The separator (which functions as a separation tank 230) is used to separate liquid and / or solid matter from the sewage suction flow path.

[0179] In one embodiment, the separator (whose function is equivalent to the separation tank 230) is one or two or more of a gas-liquid separator (whose function is equivalent to the separation tank 230), a solid-gas separator (whose function is equivalent to the separation tank 230), and a solid-liquid separator (whose function is equivalent to the separation tank 230).

[0180] In one embodiment, the separator (which functions as a separation tank 230 ) is provided with an air inlet 231 and a return port 232 . The air inlet 231 is positioned higher than the return port 232 . The air inlet 231 communicates with the upper end or top of the sewage tank (which functions as a sewage tank 220 ). The return port 232 communicates with the lower end or bottom of the sewage tank 220 .

[0181] In one embodiment, a water shoveling plate 130 is provided on the edge of the sewage cleaning port 111 close to the sewage outlet 112. The water shoveling plate 130 is used to contact the ground and scoop up accumulated water.

[0182] In one embodiment, a brush (not shown) is provided on the edge of the sewage outlet 111 near the sewage outlet 112. The brush (not shown) is used to block the sewage and foreign matter thrown out by the roller brush 120 from the gap between the sewage outlet 111 and the ground.

[0183] In one embodiment, the water purification system further includes a water suction pipe 320, a water pump 330, and a water delivery pipe 340, which are sequentially connected. The water suction pipe 320 is connected to the clean water tank 310. The water delivery pipe 340 is connected to the water inlet 115, so that the clean water tank 310 can inject clean water or cleaning agent into the roller brush 120 through the water suction pipe 320, the water pump 330, the water delivery pipe 340, and the water inlet 115.

[0184] In one embodiment, the water purification system further includes a liquid separator 350. The water pipe 340 is connected to the water inlet 115 through the liquid separator 350, that is, the inlet of the liquid separator 350 is connected to the outlet of the water pipe 340, and the outlet of the liquid separator 350 is connected to the water inlet 115. In this embodiment, in order to ensure that clean water or cleaning agent is more evenly injected into the roller brush 120, a preferred solution is to provide a plurality of water inlets 115 on the volute along the axial direction of the roller brush 120, and to provide the same number of water outlets on the liquid separator 350 to connect to the water inlet 115, so that a stream of water is divided into a plurality of streams side by side and evenly injected into the roller brush 120.

[0185] In one embodiment, the sewage collection system further includes an air inlet duct, one end of which is connected to the air inlet of the fan 241, and the other end of which is connected to the sewage tank (which functions as a sewage tank 220) through a filter.

[0186] In one embodiment, the sewage collection system further includes an air outlet duct, which is connected to the air outlet 11 of the fan 241 .

[0187] In one embodiment, a buffer return plate 116 is further disposed within the volute. This plate is positioned between the water inlet 115 and the sewage outlet 111. This plate redirects the water ejected by the rotating brush 120, returning it to the brush 120. This resolves the issue of dripping water after shutdown and reduces the impact of clean water ejected by the rotating brush 120 on the ground, minimizing splashing.

[0188] In one embodiment, the buffer reflux plate 116 is disposed near the cleaning port 111 .

[0189] In one embodiment, a ribbed bar (which functions as a buffer return plate 116) is further disposed within the volute. This ribbed bar (which functions as a buffer return plate 116) is positioned between the water inlet 115 and the sewage outlet 111. This ribbed bar (which functions as a buffer return plate 116) redirects the water ejected by the rotating roller brush 120, returning it to the roller brush 120. This resolves the problem of dripping after shutdown and reduces the impact of clean water ejected by the rotating roller brush 120 on the ground, thus minimizing splashing.

[0190] In one embodiment, the side of the rib (which functions as the buffer return plate 116 ) that receives the water thrown out by the roller brush 120 is an arc surface so as to change the direction of the water flow more smoothly.

[0191] In one embodiment, the rib (which functions as a buffer reflux plate 116 ) is disposed near the cleaning port 111 .

[0192] In one embodiment, the volute tongue 114 is arranged horizontally, and the tooth comb 113 is arranged obliquely, and the angle between the tooth comb 113 and the volute tongue 114 is greater than or equal to 5 degrees.

[0193] In one embodiment, the volute tongue 114 is arranged horizontally, and the tooth comb 113 is arranged obliquely. The angle between the tooth comb 113 and the volute tongue 114 is greater than or equal to 5 degrees and less than or equal to 15 degrees.

[0194] In one embodiment, the tooth comb 113 and the volute tongue 114 are disposed close to the roller brush 120 , and the distance between the volute tongue 114 and the roller brush 120 is smaller than the distance between the tooth comb 113 and the roller brush 120 .

[0195] In one embodiment, the distance between the comb 113 and the roller brush 120 is between 1.5 and 2.5 mm, and the distance between the volute tongue 114 and the roller brush 120 is between 0.5 and 1.5 mm.

[0196] In one embodiment, the distance between the comb 113 and the roller brush 120 is between 1.5 and 2.5 mm, and the distance between the tongue 114 and the roller brush 120 is between 1 and 2 mm.

[0197] In one embodiment, the distance between the comb 113 and the roller brush 120 is between 1 and 2 mm, and the distance between the volute tongue 114 and the roller brush 120 is between 0 and 1 mm.

[0198] In one embodiment, the tooth comb 113 is disposed close to the roller brush 120 , and the volute tongue 114 is interference fit with the roller brush 120 , that is, the volute tongue 114 is pressed into the surface of the roller brush 120 to a certain depth.

[0199] In one embodiment, the depth to which the volute tongue 114 is pressed into the surface of the roller brush 120 is between 0.5 and 2 mm.

[0200] In one embodiment, the depth to which the volute tongue 114 is pressed into the surface of the roller brush 120 is between 1 and 1.5 mm.

[0201] In one embodiment, the depth to which the volute tongue 114 is pressed into the surface of the roller brush 120 is between 1.5 and 2.5 mm.

[0202] In one embodiment, the robot further includes a navigation device for obtaining obstacle information around the robot.

[0203] In one embodiment, the navigation device is a laser navigation radar.

[0204] The self-cleaning sweeping and mopping robot provided above, when the robot is working, the water purification system injects clean water or detergent into the roller brush 120 through the water inlet 115 provided on the volute, and the wet roller brush 120 rotates to take away foreign matter, garbage and dust on the ground, and the tooth comb 113 can peel off the larger foreign matter and garbage on the roller brush 120, and the smaller garbage and dust are mixed with the water / detergent on the roller brush 120 to form sewage, which is thrown out under the action of centrifugal force when the roller brush 120 rotates. 113 can further act as a "snail tongue 114" to intercept the sewage that is thrown out and flow it into the sewage outlet 112. At the same time, the tooth comb 113 can intercept the sewage that is thrown out and also flush down the larger volume of foreign matter and garbage on the tooth comb 113, and suck it into the sewage outlet 112 together with the sewage. At this time, the water purification system injects clean water or detergent into the roller brush 120 through the water inlet 115 set on the volute to wet the roller comb again, completing a cycle, thereby achieving the purpose of self-cleaning of the roller brush 120.

[0205] The above embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A self-cleaning sweeping and mopping device, characterized in that: The utility model comprises a volute, a roller brush, and a power device for driving the roller brush to rotate; the volute is provided with a cleaning port, a sewage outlet, a tooth comb, and a water inlet in sequence in the direction of rotation of the roller brush; the roller brush contacts the ground through the cleaning port; the sewage outlet is used to connect to a vacuum cleaner; The tooth comb is used to remove garbage and foreign matter on the roller brush; the water inlet is used to connect the water system to the outside to inject water onto the roller brush; the tooth comb is arranged close to the roller brush; the edge of the sewage cleaning port close to the sewage outlet is provided with a water shoveling plate or a brush; the water shoveling plate is used to contact the ground to scoop up accumulated water; the brush is used to block the sewage and / or garbage thrown out by the roller brush from the gap between the sewage cleaning port and the ground; a volute tongue is also provided in the volute; the volute tongue is arranged between the tooth comb and the water inlet, or on the tooth root of the tooth comb; The volute tongue is used to block the sewage thrown out when the roller brush rotates; the volute tongue is arranged close to the roller brush, and the distance between the volute tongue and the roller brush is smaller than the distance between the tooth comb and the roller brush; a buffer reflux plate is also provided in the volute; the buffer reflux plate is arranged between the water inlet and the sewage cleaning port; the buffer reflux plate is used to change the movement direction of the water thrown out when the roller brush rotates, so that the thrown water returns to the roller brush, solves the dripping problem after shutdown, and reduces the force of the clean water thrown out when the roller brush rotates to hit the ground, reducing splashing.

2. A self-cleaning sweeping and mopping robot, characterized in that: It includes a shell, a sweeping and mopping device arranged in the shell, a water purification system, a fan, a filter, and a motion system; the sweeping and mopping device is the self-cleaning sweeping and mopping integrated device according to claim 1; the volute is fixedly connected to or integrally arranged with the shell; the shell is also provided with a sewage trough and an air intake duct; the sewage trough is connected with the sewage outlet through the air intake duct; the sewage trough is also connected with the air inlet of the fan; the filter is arranged between the sewage trough and the air inlet of the fan; the water purification system includes a clean water tank; the clean water tank is connected with the water inlet to inject clean water or detergent onto the roller brush; the clean water tank is arranged above the sewage trough and is sealed and detachably connected to the edge of the notch of the sewage trough; the motion system is used to drive the robot to move on the ground.

3. The self-cleaning sweeping and mopping robot according to claim 2, characterized in that: A separation portion is further provided in the shell; the separation portion is provided on the sewage suction flow path between the sewage outlet and the filter; the separation portion is used to separate liquid and / or solid substances.

4. The self-cleaning sweeping and mopping robot according to claim 3, characterized in that: The separation portion is a centrifugal bend at the end of the air intake channel, or a centrifugal bend provided downstream of the sewage inlet of the sewage tank, or a separation tank provided on the flow path between the filter and the sewage tank.

5. The self-cleaning sweeping and mopping robot according to claim 2, characterized in that: The water purification system also includes a water suction pipe, a water pump, a water supply pipe and a liquid separator that are connected in sequence; the water suction pipe is connected to the clean water tank; the liquid separator is connected to the water inlet, so that the clean water tank can inject clean water or cleaning agent into the roller brush through the water suction pipe, the water pump, the water supply pipe, the liquid separator and the water inlet that are connected in sequence.

6. A self-cleaning sweeping and mopping robot, characterized in that: It includes a frame, a sweeping and mopping device installed on the frame, a sewage collection system, a motion system and a water purification system; the sweeping and mopping device is the self-cleaning sweeping and mopping integrated device according to claim 1; the sewage collection system includes a sewage suction pipe, a sewage tank, a filter and a fan connected in sequence; the sewage outlet is connected to the sewage suction pipe; the sewage tank is used to hold sewage and / or garbage sucked in by the sewage suction pipe; the water purification system includes a clean water tank; the clean water tank is connected to the water inlet to inject clean water or detergent onto the roller brush; the motion system is used to drive the frame to move on the ground.

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