A mop mechanism, a sweeper, and a sweeper system

Abstract

This invention discloses a mop mechanism, a sweeper, and a sweeper system. By configuring upper and lower scraper blades at the opening of the wastewater tank, the upper and lower scraper blades alternately contact the rolling mop to scrape water during cleaning, enabling the rolling mop to rotate in both directions for cleaning, resulting in good cleaning effect. It also has an automatic cleaning function for the filter screen in the wastewater tank, eliminating the need for regular manual cleaning of the filter screen or reducing the frequency of filter screen cleaning, thus improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of sweeping robot technology, and in particular to a mop mechanism, a sweeping machine, and a sweeping machine system. Background Technology

[0002] Robotic vacuum cleaners have become common small household appliances, equipped with mops, wastewater bins, and wastewater troughs, enabling automatic sweeping and mopping. The system also includes a base station for returning the vacuum cleaner to its charging dock and for self-cleaning the mop.

[0003] Existing sweepers using roller mops typically have a wastewater trough on one side of the roller mop, with a scraper blade at the trough's opening. When the sweeper returns to the base station for self-cleaning, the roller mop rotates in one direction, and the scraper blade contacts the roller mop to scrape the wastewater into the wastewater trough. The wastewater in the trough is then pumped into a wastewater collection box, and finally into the base station's wastewater tank.

[0004] Because the existing sewage tank opening is only equipped with a sewage strip, the roller mop can only rotate in one direction to clean the roller mop. Some debris adheres to the roller mop, and cleaning with only one-way rotation makes it difficult to scrape off some debris, so the cleaning effect needs to be improved.

[0005] Because the existing sewage tank only has one sewage strip at the opening, the roller mop can only rotate in one direction. After the sewage enters the sewage tank, it is pumped into the sewage box, which can backwash the filter screen. Some debris falls on the filter screen of the sewage tank, requiring manual cleaning of the filter screen regularly, resulting in a poor user experience. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a novel mop mechanism, sweeper, and sweeper system. By configuring upper and lower scraper blades at the opening of the wastewater tank, the upper and lower scraper blades alternately contact the rolling mop to scrape water during cleaning, enabling the rolling mop to rotate in both directions for cleaning, resulting in good cleaning effect. It also has an automatic cleaning function for the filter screen in the wastewater tank, eliminating the need for regular manual cleaning of the filter screen or reducing the frequency of filter screen cleaning, thus improving the user experience.

[0007] The present invention provides a mop mechanism for a sweeper, comprising a mechanism housing having a mounting groove, a rolling mop pivotally mounted in the mounting groove and having a forward rotation cleaning state and a reverse rotation cleaning state, a motor for driving the rolling mop to rotate forward and backward, a wastewater tank pivotally mounted in the mounting groove and located on one side of the rolling mop, and a drive unit for driving the wastewater tank to swing.

[0008] A filter screen is installed in the sewage tank. The opening of the sewage tank faces the side of the rolling mop. The lower edge of the opening has a lower scraper and the upper edge of the opening has an upper scraper.

[0009] The drive unit drives the sewage tank to swing so that the lower scraper and the upper scraper alternately contact the rolling mop;

[0010] When the rolling mop is in the forward rotation cleaning state, the lower scraper is in contact with the rolling mop, the upper scraper is separated from the rolling mop, and the wastewater scraped off by the lower scraper enters the wastewater tank through the filter screen;

[0011] When the rolling mop is in the reverse rotation cleaning state, the upper scraper is in contact with the rolling mop, and the lower scraper is separated from the rolling mop. The sewage scraped off by the upper scraper enters the sewage tank through the filter screen. When the sewage tank is full of sewage, the sewage backwashes the filter screen and flows out through the gap between the lower scraper and the rolling mop.

[0012] In one alternative technical solution, the ends of the lower scraper and the upper scraper each have a scraper bevel for adhering to the rolling mop.

[0013] In one of the alternative technical solutions, the rolling mop is connected to the mechanism housing via a first pivot shaft, and the output shaft of the motor is connected to the first pivot shaft;

[0014] The sewage tank is connected to the housing of the mechanism via a second pivot shaft, which is parallel to the first pivot shaft.

[0015] In one of the alternative technical solutions, the drive unit includes a motor, and the motor shaft of the motor is connected to the second pivot shaft.

[0016] In one of the alternative technical solutions, the drive unit includes a lifting frame movably mounted in the mounting slot and a lifting drive component for driving the lifting frame to move up and down;

[0017] A connecting sleeve is provided on the top plate of the sewage tank, and the distance between the connecting sleeve and the first pivot shaft is less than the distance between the second pivot shaft and the first pivot shaft.

[0018] The lower end of the lifting frame is provided with a third pivot shaft, which is pivotally connected to the connecting sleeve.

[0019] In one of the alternative technical solutions, the top plate of the mechanism housing has a top plate opening for the lifting frame to pass through;

[0020] The gap between the lifting frame and the top plate opening is through which the lifting drive component is located on the outside of the mechanism housing and connected to the lifting frame.

[0021] In one of the alternative technical solutions, the top plate of the sewage tank has a mounting bracket at each end, and a second pivot shaft is mounted on each mounting bracket.

[0022] In one alternative embodiment, the mounting bracket extends obliquely, and the distance between the mounting bracket and the first pivot axis gradually decreases along a downward direction, with the second pivot axis mounted on the upper end of the mounting bracket.

[0023] The present invention also provides a sweeper, wherein the sweeper is equipped with the mop mechanism described in any of the foregoing technical solutions;

[0024] The sweeper includes a wastewater box and a main unit water pump connected to the wastewater box via a pipe;

[0025] The main pump is connected to the sewage tank via a pipeline;

[0026] When the rolling mop is in the forward rotation cleaning state, the main unit water pump is in working state, and the sewage in the sewage tank is pumped into the sewage box.

[0027] When the rolling mop is in the reverse rotation cleaning state, the main unit water pump is in the stopped working state.

[0028] The present invention also provides a sweeping robot system, including a base station and the sweeping robot described in the aforementioned technical solution;

[0029] The base station has a tray at the bottom for the sweeper to enter for cleaning, and the tray has a nozzle.

[0030] The base station also includes a base station clean water tank, a base station wastewater tank, a base station water supply pump, and a base station water pump;

[0031] The base station water tank, the base station water supply pump, and the nozzle are connected in sequence via pipes.

[0032] The tray, the base station water pump, and the base station sewage tank are connected in sequence by pipes;

[0033] When the sweeper is in the tray and the rolling mop is in the forward rotation cleaning state, the base station water pump is connected to the wastewater box, the base station water pump is disconnected from the tray, the base station water supply pump and the base station water pump are both in working state, and the wastewater in the wastewater box is pumped to the base station wastewater tank by the base station water pump.

[0034] When the sweeper is in the tray and the rolling mop is in the reverse rotation cleaning state, the base station water pump is disconnected from the wastewater box, and the base station water pump is connected to the tray. Both the base station water supply pump and the base station water pump are in working state, and the wastewater in the tray is pumped to the base station wastewater tank by the base station water pump.

[0035] The above technical solution has the following beneficial effects:

[0036] The mop mechanism, sweeper, and sweeper system provided by this invention are equipped with upper and lower scraper blades at the opening of the wastewater tank, and a drive unit for driving the wastewater tank to rotate or swing. During cleaning with the rolling mop, the rolling mop is driven by a motor to rotate forward first. The lower scraper blade contacts the rolling mop to scrape water, while the upper scraper blade separates from the rolling mop. The wastewater scraped off by the rolling mop enters the wastewater tank through a filter screen, is then pumped into the wastewater box of the sweeper, and finally pumped into the base station's wastewater tank. After forward cleaning, the rolling mop is driven by a motor to rotate in the opposite direction. The upper scraper blade contacts the rolling mop to scrape water, while the lower scraper blade separates from the rolling mop. The wastewater scraped off by the rolling mop enters the wastewater tank through a filter screen and is stored. When the wastewater tank is full, the wastewater overflows outward to backwash the filter screen and scraper blades, and flows into the base station's tray through the gap between the lower scraper blade and the rolling mop, and is finally pumped into the base station's wastewater tank.

[0037] Therefore, the mop mechanism, sweeper and sweeper system provided by the present invention can achieve forward and reverse rotation cleaning of the rolling mop, which can easily scrape off the debris attached to the rolling mop, resulting in good cleaning effect. It can also reverse rinse the filter screen and scraper, eliminating the need for manual periodic cleaning of the filter screen or reducing the frequency of filter screen cleaning, thus improving the user experience. Attached Figure Description

[0038] The disclosure of this invention will become more readily understood by referring to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings:

[0039] Figure 1 A perspective view of a mop mechanism provided in an embodiment of the present invention;

[0040] Figure 2 This is an exploded view of a mop mechanism provided in an embodiment of the present invention;

[0041] Figure 3 A first-person perspective 3D view of the assembled sewage tank and lifting frame;

[0042] Figure 4 A two-dimensional view of the assembled sewage tank and lifting frame from a second perspective;

[0043] Figure 5 A schematic diagram showing the connection between the motor and the second pivot shaft of the sewage tank, which is used as the drive unit.

[0044] Figure 6 A 3D view of the filter screen;

[0045] Figure 7 This is a 3D view of the lifting frame;

[0046] Figure 8 A schematic diagram showing the use of a lifting frame and lifting drive components in the drive unit;

[0047] Figure 9 A cross-sectional view of the assembled sewage tank and lifting frame along the drain outlet of the sewage tank;

[0048] Figure 10 This is a diagram illustrating the forward rotation of a rolling mop during cleaning.

[0049] Figure 11 A schematic diagram illustrating the reverse rotation of a rolling mop for cleaning.

[0050] Figure 12 A top view showing the motor positioned at one end of the mechanism housing;

[0051] Figure 13 This is a schematic diagram of a sweeping machine provided in an embodiment of the present invention;

[0052] Figure 14 A diagram illustrating the process of wastewater being pumped from the wastewater tank to the wastewater box during forward rotation of the rolling mop for cleaning.

[0053] Figure 15 A schematic diagram of a base station for a sweeping robot system provided in an embodiment of the present invention;

[0054] Figure 16 This diagram illustrates how, during the forward rotation of the rolling mop for cleaning, wastewater overflows from the wastewater tank into the tray and is then pumped into the base station's wastewater tank. Detailed Implementation

[0055] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0056] like Figure 1-12As shown, an embodiment of the present invention provides a mop mechanism 100 for a sweeper 200, including a mechanism housing 1 having a mounting groove 11, a rolling mop 2 pivotally mounted in the mounting groove 11 and having a forward rotation cleaning state and a reverse rotation cleaning state, a motor 3 for driving the rolling mop 2 to rotate forward and backward, a wastewater tank 4 pivotally mounted in the mounting groove 11 and located on one side of the rolling mop 2, and a drive unit 5 for driving the wastewater tank 4 to swing.

[0057] A filter screen 44 is installed in the sewage tank 4. The opening 41 of the sewage tank 4 faces the side of the rolling mop 2. The lower edge of the opening 41 has a lower scraper 42, and the upper edge of the opening 41 has an upper scraper 43.

[0058] The drive unit 5 drives the sewage tank 4 to swing so that the lower scraper 42 and the upper scraper 43 alternately contact the rolling mop 2.

[0059] When the rolling mop 2 is in the forward rotation cleaning state, the lower scraper 42 contacts the rolling mop 2, and the upper scraper 43 separates from the rolling mop 2. The sewage scraped off by the lower scraper 42 enters the sewage tank 4 through the filter screen 44.

[0060] When the rolling mop 2 is in the reverse rotation cleaning state, the upper scraper 43 contacts the rolling mop 2, while the lower scraper 42 separates from the rolling mop 2. The wastewater scraped off by the upper scraper 43 enters the wastewater tank 4 through the filter screen 44. When the wastewater tank 4 is full of wastewater, the wastewater backwashes the filter screen 44 and the lower scraper 42, and flows out through the gap between the lower scraper 42 and the rolling mop 2.

[0061] The mop mechanism 100 provided by the present invention is a component of a sweeper, which includes a mechanism housing 1, a rolling mop 2, a motor 3, a wastewater tank 4, and a drive unit 5.

[0062] The housing 1 has a downward-facing mounting groove 11. The rolling mop 2 is a roller or wheel type, mounted in the mounting groove 11 via a pivot axis. The pivot axis of the rolling mop 2 is horizontally arranged, and the radius of the rolling mop 2 is greater than the distance between its pivot axis and the lower opening of the mounting groove 11, allowing the rolling mop 2 to protrude downwards and contact the ground for cleaning. The motor 3, such as a servo motor or stepper motor, can rotate in both directions, thereby driving the rolling mop 2 to rotate in both directions around its pivot axis. The motor 3 is mounted on the outside or inside of the housing 1, and its output shaft is connected to the pivot axis of the rolling mop 2 via a coupling. The wastewater tank 4 is elongated and located on one side of the rolling mop 2, parallel to its pivot axis. The wastewater tank 4 is mounted in the mounting groove 11 via a pivot axis and can swing around its position. A filter screen 44 is installed in the wastewater tank 4, with its opening 41 facing the rolling mop 2. The wastewater tank 4 has a drain outlet 45 at its rear, which is connected to the main water pump 202 of the sweeper 200 via a pipe. The lower edge of the trough 41 has a long strip-shaped lower scraper 42, and the upper edge of the trough 41 has a long strip-shaped upper scraper 43. The lower scraper 42 and upper scraper 43 can be made of plastic. The lower scraper 42 and upper scraper 43 can be integrally formed with the upper and lower walls of the trough 41. Alternatively, the lower scraper 42 and upper scraper 43 can be made of rubber and are installed on the upper and lower walls of the trough 41 using adhesive, riveting, or other means. The drive unit 5 is connected to the wastewater tank 4 and drives the wastewater tank 4 to rotate around its pivot axis by a preset angle, thereby causing the lower scraper 42 and upper scraper 43 to alternately contact the rolling mop 2, thus alternately scraping water. The drive unit 5 can be a motor, a telescopic drive, a swing drive, or the like. The drive unit 5 can be installed in the mounting slot 11 or on the outside of the mechanism housing 1.

[0063] When the sweeper returns Figure 15-16 When the base station 300 is in the tray 305 shown, the rolling mop 2 can rotate forward and backward for cleaning. Therefore, the rolling mop 2 has a forward rotation cleaning state and a reverse rotation cleaning state.

[0064] When the rolling mop 2 is rotating in the forward direction for cleaning, the drive unit 5 drives the wastewater tank 4 to rotate in the first direction by a first preset angle. The upper scraper 43 separates from the rolling mop 2, and the lower scraper 42 contacts the rolling mop 2 to scrape water. The scraped water enters the wastewater tank 4 through the filter screen 44. The water in the wastewater tank 4 can be pumped into the wastewater box 201 of the sweeper 200 by the main unit water pump 202, and then pumped into the base station wastewater tank 302 by the base station water pump 304. Debris attached to the rolling mop 2 can be scraped off by the lower scraper 42. Some debris will fall into the tray 305, and some debris will flow into the wastewater tank 4 with the wastewater and be filtered by the filter screen 44.

[0065] After the rolling mop 2 performs forward rotation cleaning, it then performs reverse rotation cleaning. The rolling mop 2 rotates in the reverse direction, and the drive unit 5 drives the wastewater tank 4 to rotate in the second direction at a second preset angle. The lower scraper 42 separates from the rolling mop 2, and the upper scraper 43 contacts the rolling mop 2 to scrape water. The scraped water enters the wastewater tank 4 through the filter screen 44. Debris adhering to the rolling mop 2 can be scraped off by the upper scraper 43. Some debris falls into the tray 305, while some debris flows with the wastewater into the wastewater tank 4 and is filtered by the filter screen 44. In this state, the main unit's water pump 202 stops working, and the wastewater is stored in the wastewater tank 4. When the wastewater tank 4 is full, the wastewater overflows and backwashes the filter screen 44, removing debris from it. The debris flows with the wastewater through the gap between the lower scraper 42 and the rolling mop 2 into the tray 305 of the base station 300, and is finally pumped into the base station wastewater tank 302 of the base station 300.

[0066] If the lower scraper 42 is located near the pivot of the rolling mop 2, and the upper scraper 43 is located above the pivot of the rolling mop 2, then the upper scraper 43 is longer than the lower scraper 42 to ensure that both the lower scraper 42 and the upper scraper 43 can contact the rolling mop 2. If the upper scraper 43 is located near the pivot of the rolling mop 2, and the lower scraper 42 is located above the pivot of the rolling mop 2, then the lower scraper 42 is longer than the upper scraper 43 to ensure that both the lower scraper 42 and the upper scraper 43 can contact the rolling mop 2.

[0067] In summary, the mop mechanism 100 provided by the present invention has an upper scraper 43 and a lower scraper 42 configured at the opening 41 of the sewage tank 4, and is equipped with a drive unit 5 for driving the sewage tank 4 to rotate or swing. When the rolling mop 2 is cleaning, the rolling mop 2 is driven by the motor 3 to rotate forward first, the lower scraper 42 contacts the rolling mop 2 to scrape water, the upper scraper 43 separates from the rolling mop 2, and the sewage scraped off from the rolling mop 2 enters the sewage tank 4 through the filter screen 44, is then pumped into the sewage box 201 of the sweeper 200, and finally is pumped into the base station sewage tank 302 of the base station 300. After forward cleaning, the rolling mop 2 is driven by the motor 3 to rotate in the opposite direction. The upper scraper 43 contacts the rolling mop 2 to scrape water, while the lower scraper 42 separates from the rolling mop 2. The wastewater scraped off by the rolling mop 2 enters the wastewater tank 4 through the filter screen 44 and is stored. When the wastewater tank 4 is full, the wastewater overflows outward to backwash the filter screen 44 and flows into the tray 305 of the base station 300 through the gap between the lower scraper 42 and the rolling mop 2. Finally, it is pumped into the base station wastewater tank 302 of the base station 300.

[0068] Therefore, the mop mechanism 100 provided by this invention allows the rolling mop 2 to perform forward and reverse rotation cleaning, peeling away debris attached to the rolling mop 2 from both directions, resulting in a more comprehensive and efficient cleaning of the rolling mop 2. During reverse cleaning, the water overflowing from the wastewater tank 4 can also backwash the filter screen 44 to remove debris from it, eliminating the need for regular manual cleaning of the filter screen 44 or reducing the frequency of cleaning, thus improving the user experience.

[0069] In one embodiment, such as Figure 10-11 As shown, the wastewater tank 4 includes a wastewater tank body 4-1 and a channel 4-2 connected to the top opening of the wastewater tank body 4-1. The channel 4-2 extends toward the rolling mop 2, and the slot 41 is provided at one end of the channel 4-2 facing the rolling mop 2. A filter screen 44 is installed in the top opening of the wastewater tank body 4-1.

[0070] like Figure 14 As shown, when the rolling mop 2 is in the forward rotation cleaning state, the lower scraper 42 is at the same height as the pivot axis of the rolling mop 2, and the lower scraper 42 faces the pivot axis of the rolling mop 2. The sewage tank body 4-1 is arranged vertically, which can accommodate more sewage.

[0071] like Figure 16 As shown, when the rolling mop 2 is in the reverse rotation cleaning state, the lower scraper 42 is inclined towards the underside of the pivot axis of the rolling mop 2, the sewage tank body 4-1 is inclined, and the top opening of the sewage tank body 4-1 is inclined towards the side of the rolling mop 2, so that the filter screen 44 is also inclined, which reduces the amount of sewage stored in the sewage tank body 4-1, which is conducive to the sewage being discharged outward to backwash the filter screen 44, and also facilitates the removal of debris on the filter screen 44 so that it can be discharged into the tray 305 along with the sewage.

[0072] In one embodiment, such as Figure 3-4 and Figure 10-11 As shown, the ends of the lower scraper 42 and the upper scraper 43 each have a scraper bevel for contacting the rolling mop 2. The scraper bevel can be a flat bevel or an arc bevel to ensure contact and contact with the rolling mop 2, thereby improving the cleaning effect on the rolling mop 2.

[0073] In one embodiment, such as Figure 2-4 and Figure 12 As shown, the rolling mop 2 is connected to the mechanism housing 1 via the first pivot shaft 20, and the output shaft of the motor 3 is connected to the first pivot shaft 20.

[0074] The sewage tank 4 is connected to the housing 1 of the mechanism via a second pivot shaft 40, which is parallel to the first pivot shaft 20.

[0075] In this embodiment, a first pivot shaft 20 can be connected to each end of the central shaft or central cylinder of the rolling mop 2, or a first pivot shaft 20 can pass through the central shaft or central cylinder of the rolling mop 2. The end of the first pivot shaft 20 is mounted on the wall of the mounting groove 11 by bearings. A second pivot shaft 40 is connected to each end of the sewage tank 4. The second pivot shaft 40 is parallel to the first pivot shaft 20 and is mounted on the wall of the mounting groove 11 by bearings, so that the sewage tank 4 is arranged parallel to one side of the rolling mop 2.

[0076] In one embodiment, such as Figure 5 As shown, the drive unit 5 includes a motor 51, and the motor shaft of the motor 51 is connected to the second pivot shaft 40.

[0077] In this embodiment, the drive unit 5 uses a motor 51, which can be a stepper motor or a servo motor for easy control. The motor 51 is installed in the mounting slot 11 or on the outside of the mechanism housing 1. The motor shaft is connected to the second pivot shaft 40 through a coupling to directly drive the sewage tank 4 to rotate.

[0078] In one embodiment, such as Figure 7-8 As shown, the drive unit 5 includes a lifting frame 52 movably mounted in the mounting slot 11 and a lifting drive member 53 for driving the lifting frame 52 to move up and down.

[0079] A connecting sleeve 47 is provided on the top plate of the sewage tank 4. The distance between the connecting sleeve 47 and the first pivot shaft 20 is less than the distance between the second pivot shaft 40 and the first pivot shaft 20.

[0080] The lower end of the lifting frame 52 is provided with a third pivot shaft 52, which can be pivotally connected to the connecting sleeve 47.

[0081] In this embodiment, the drive unit 5 employs a lifting frame 52 and a lifting drive component 53. The lifting frame 52 is slidably mounted in the mounting groove 11. The lifting drive component 53 can be a telescopic drive component, which may be a piston, including a hydraulic cylinder or a pneumatic cylinder. The lifting drive component 53 can be mounted in the mounting groove 11 or on the outside of the mechanism housing 1. The lifting drive component 53 is connected to the lifting frame 52 and is used to drive the lifting frame 52 to move up and down.

[0082] Connecting sleeves 47 are provided at both ends of the top plate of the sewage tank 4, and the connecting sleeves 47 are located between the first pivot shaft 20 and the second pivot shaft 40. A third pivot shaft 52 is provided at the lower end of the lifting frame 52, and the third pivot shaft 52 is pivotally connected to the connecting sleeves 47.

[0083] When the lifting drive 53 drives the lifting frame 52 to move upward, the sewage tank 4 swings counterclockwise around the second pivot axis 40, the lower scraper 42 contacts the rolling mop 2 to scrape water, and the upper scraper 43 separates from the rolling mop 2. When the lifting drive 53 drives the lifting frame 52 to move downward, the sewage tank 4 swings clockwise around the second pivot axis 40, the upper scraper 43 contacts the rolling mop 2 to scrape water, and the lower scraper 42 separates from the rolling mop 2.

[0084] Specifically, two lugs 521 are installed at intervals on one side of the lifting frame 52, and a connecting rod 523 is inserted between the two lugs 521. The connecting rod 523 is arranged horizontally. A lifting drive component 53 is arranged on the left and right sides of the lifting frame 52 respectively. The telescopic end of the lifting drive component 53 is connected to the end of the connecting rod 523. The two lifting drive components 53 operate synchronously to improve the lifting stability of the lifting frame 52.

[0085] In one embodiment, such as Figure 1 and Figure 8 As shown, the top plate of the housing 1 has a top plate opening 12 for the lifting frame 52 to pass through.

[0086] The lifting frame 52 passes through the top plate opening 12, and the lifting drive component 53 is located outside the mechanism housing 1 and is connected to the lifting frame 52.

[0087] In this embodiment, a portion of the lifting frame 52 extends through the top plate opening 12 into the mounting groove 11, the connecting rod 523 is located above the top plate of the mechanism housing 1, the lifting drive component 53 is located outside the mounting groove 11, and the lifting drive component 53 is installed in the housing of the sweeper 200 to reduce the height dimension of the mechanism housing 1.

[0088] In one embodiment, such as Figure 2-4 As shown, the top plate of the sewage tank 4 has a mounting bracket 46 at each end, and a second pivot shaft 40 is mounted on each mounting bracket 46. By mounting the second pivot shaft 40 on the mounting bracket 46 on the top plate of the sewage tank 4, the distance between the second pivot shaft 40 and the first pivot shaft 20 is increased, and the rotational lever arm length of the sewage tank 4 is increased. A very small rotation angle is sufficient to achieve alternating contact between the lower scraper 42 and the upper scraper 43 and the rolling mop 2 to scrape water.

[0089] In one embodiment, such as Figure 3-4 As shown, the mounting bracket 46 extends obliquely, and the distance between the mounting bracket 46 and the first pivot axis 20 gradually decreases along the downward direction. The second pivot axis 40 is mounted on the upper end of the mounting bracket 46.

[0090] In this embodiment, the mounting bracket 46 extends upward and backward at an angle, and the second pivot shaft 40 is installed at the upper end of the mounting bracket 46, further extending the rotation arm length of the sewage tank 4.

[0091] like Figure 13-14 As shown, an embodiment of the present invention provides a sweeping machine 200, in which a mop mechanism 100 as described in any of the preceding embodiments is installed.

[0092] The sweeper 200 includes a wastewater box 201 and a main unit water pump 202 connected to the wastewater box 201 via a pipe.

[0093] The main pump 202 is connected to the sewage tank 4 via a pipe.

[0094] When the rolling mop 2 is in the forward rotation cleaning state, the main unit water pump 202 is in working state, and the sewage in the sewage tank 4 is pumped into the sewage box 201.

[0095] When the rolling mop 2 is in the reverse rotation cleaning state, the main unit water pump 202 is in the stopped working state.

[0096] The sweeper 200 provided by the present invention includes a mop mechanism 100, which is installed in the housing of the sweeper 200.

[0097] For details regarding the structure, construction, and working principle of the mop mechanism 100, please refer to the previous description of the mop mechanism 100; further details will not be repeated here.

[0098] The sweeper 200 is equipped with a wastewater box 201 and a main unit water pump 202. The main unit water pump 202 is connected to the wastewater box 201 through a pipe, and the main unit water pump 202 is connected to the drain outlet 45 of the wastewater tank 4 through a pipe.

[0099] When the sweeper returns Figure 15-16 When the base station 300 is in the tray 305 shown, the sweeper 200's rolling mop 2 can rotate forward and backward to clean.

[0100] When the rolling mop 2 is rotating in the forward direction for cleaning, the drive unit 5 drives the wastewater tank 4 to rotate in the first direction by a first preset angle. The upper scraper 43 separates from the rolling mop 2, and the lower scraper 42 contacts the rolling mop 2 to scrape water. The scraped water enters the wastewater tank 4 through the filter screen 44. The water in the wastewater tank 4 can be pumped into the wastewater box 201 of the sweeper 200 by the main unit water pump 202, and then pumped into the base station wastewater tank 302 by the base station water pump 304. Debris attached to the rolling mop 2 can be scraped off by the lower scraper 42. Some debris will fall into the tray 305, and some debris will flow into the wastewater tank 4 with the wastewater and be filtered by the filter screen 44.

[0101] After the rolling mop 2 performs forward rotation cleaning, it then performs reverse rotation cleaning. The rolling mop 2 rotates in the reverse direction, and the drive unit 5 drives the wastewater tank 4 to rotate in the second direction at a second preset angle. The lower scraper 42 separates from the rolling mop 2, and the upper scraper 43 contacts the rolling mop 2 to scrape water. The scraped water enters the wastewater tank 4 through the filter screen 44. Debris adhering to the rolling mop 2 can be scraped off by the upper scraper 43. Some debris falls into the tray 305, while some debris flows with the wastewater into the wastewater tank 4 and is filtered by the filter screen 44. In this state, the main unit's water pump 202 stops working, and the wastewater is stored in the wastewater tank 4. When the wastewater tank 4 is full, the wastewater overflows and backwashes the filter screen 44, removing debris from it. The debris flows with the wastewater through the gap between the lower scraper 42 and the rolling mop 2 into the tray 305 of the base station 300, and is finally pumped into the base station wastewater tank 302 of the base station 300.

[0102] Therefore, the sweeper 200 provided by this invention allows its rolling mop 2 to rotate in both directions for cleaning, peeling away debris attached to the rolling mop 2 from both sides, resulting in a more comprehensive and efficient cleaning of the rolling mop 2. During reverse cleaning, the water overflowing from the wastewater tank 4 can also backwash the filter screen 44 and the lower scraper, washing away debris on the filter screen 44. This eliminates the need for regular manual cleaning of the filter screen 44 or reduces the frequency of cleaning, thus improving the user experience.

[0103] like Figure 15-16 As shown, an embodiment of the present invention provides a sweeping robot system, including a base station 300 and the sweeping robot 200 described in the aforementioned embodiment.

[0104] The base station 300 has a tray 305 at its bottom for the sweeper 200 to enter for cleaning, and the tray 305 has a nozzle.

[0105] The base station 300 also includes a base station clean water tank 301, a base station wastewater tank 302, a base station water supply pump 303, and a base station water pump 304.

[0106] The base station water tank 301, the base station water supply pump 303, and the nozzle are connected in sequence through pipes.

[0107] The tray 305, the base station water pump 304, and the base station sewage tank 302 are connected in sequence through pipes.

[0108] When the sweeper 200 is in the tray 305 and the rolling mop 2 is in the forward rotation cleaning state, the base station water pump 304 is connected to the sewage box 201, the base station water pump 304 is disconnected from the tray 305, the base station water supply pump 303 and the base station water pump 304 are both in working state, and the sewage in the sewage box 201 is pumped to the base station sewage tank 302 by the base station water pump 304.

[0109] When the sweeper 200 is in the tray 305 and the rolling mop 2 is in the reverse rotation cleaning state, the base station water pump 304 is disconnected from the sewage box 201, and the base station water pump 304 is connected to the tray 305. Both the base station water supply pump 303 and the base station water pump 304 are in working state, and the sewage in the tray 305 is pumped to the base station sewage tank 302 by the base station water pump 304.

[0110] The sweeping robot system provided by this invention includes a base station 300 and a sweeping robot 200. The base station 300 is used for the sweeping robot 200 to return to its charging position and for cleaning.

[0111] For details regarding the structure, construction, and working principle of the sweeper 200, please refer to the previous description of the sweeper 200; it will not be repeated here.

[0112] The base station 300 includes a clean water tank 301, a wastewater tank 302, a water supply pump 303, and a water pump 304. The base station 300 has a tray 305 at its bottom, and a nozzle is mounted on the tray 305.

[0113] The base station water tank 301, the base station water pump 303, and the spray nozzle are connected in sequence via pipes. The base station water tank 301 is connected to the tap water pipe 306. During cleaning, the base station water pump 303 is turned on, and the spray nozzle sprays clean water onto the rolling mop 2 in the tray 305.

[0114] The tray 305, the base station water pump 304, and the base station wastewater tank 302 are connected in sequence by pipes. During cleaning, the base station water pump 304 can be turned on as needed to pump the wastewater in the tray 305 into the base station wastewater tank 302.

[0115] The base station water pump 304 can also be connected to and disconnected from the drainage interface of the wastewater box 201 of the sweeper 200 via pipes and corresponding connectors. This part is part of the prior art and will not be described in detail here.

[0116] Solenoid valves 307 can be installed on the pipes connected to the sewage box 201, the pipes connected to the tray 305, and other pipes as needed to control the on / off state of each pipe.

[0117] When the sweeper 200 returns to its original position in the tray 305 and the rolling mop 2 needs cleaning, the base station water pump 304 is connected to the drain interface of the wastewater box 201 of the sweeper 200 through a pipe and a corresponding connector.

[0118] First, the motor 3 drives the rolling mop 2 to rotate forward for cleaning. The drive unit 5 drives the sewage tank 4 to swing. The lower scraper 42 contacts the rolling mop 2 to scrape water, and the upper scraper 43 separates from the rolling mop 2. At this time, the base station water pump 304 is connected to the sewage box 201, and the base station water pump 304 is disconnected from the tray 305. Both the base station water supply pump 303 and the base station water pump 304 are in operation. The sewage in the sewage tank 4 is pumped into the sewage box 201 by the main unit water pump 202, and the sewage in the sewage box 201 is pumped into the base station sewage tank 302 by the base station water pump 304.

[0119] After forward rotation cleaning, the motor 3 drives the rolling mop 2 to rotate in the opposite direction for cleaning. The drive unit 5 drives the wastewater tank 4 to swing. The upper scraper 43 contacts the rolling mop 2 to scrape water, while the lower scraper 42 separates from the rolling mop 2. At this time, the base station water pump 304 is disconnected from the wastewater box 201, the base station water pump 304 is connected to the tray 305, the main unit water pump 202 is stopped, and both the base station water supply pump 303 and the base station water pump 304 are in operation. The wastewater overflowing from the wastewater tank 4 enters the tray 305 through the gap between the lower scraper 42 and the rolling mop 2. The wastewater in the tray 305 is pumped by the base station water pump 304 to the base station wastewater tank 302.

[0120] The start-up times of the aforementioned host water pump 202, base station water supply pump 303, and base station water pump 304 can be set as needed.

[0121] Therefore, in the sweeping system provided by this invention, when the sweeper 200 is in the tray 305 of the base station 300, the rolling mop 2 can rotate in both directions for cleaning, peeling away debris attached to the rolling mop 2 from both sides, resulting in a more comprehensive and efficient cleaning of the rolling mop 2. During reverse cleaning, the water overflowing from the wastewater tank 4 can also backwash the filter screen 44 to remove debris from the filter screen 44, eliminating the need for regular manual cleaning of the filter screen 44 or reducing the frequency of cleaning the filter screen 44, thus improving the user experience.

[0122] The above-mentioned operations in this invention can be automatically controlled by the control system of the sweeping robot and / or the base station, or can be controlled by a remote control, touch screen, etc.

[0123] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0124] The above are merely the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several other modifications can be made based on the principles of the present invention, and these modifications should also be considered within the scope of protection of the present invention.

Claims

1. A mop mechanism for use in a sweeper, characterized in that, The device includes a housing with a mounting groove, a rolling mop pivotally mounted in the mounting groove and having a forward rotation cleaning state and a reverse rotation cleaning state, a motor for driving the rolling mop to rotate forward and backward, a wastewater tank pivotally mounted in the mounting groove and located on one side of the rolling mop, and a drive unit for driving the wastewater tank to swing. A filter screen is installed in the sewage tank. The opening of the sewage tank faces the side of the rolling mop. The lower edge of the opening has a lower scraper and the upper edge of the opening has an upper scraper. The drive unit drives the sewage tank to swing so that the lower scraper and the upper scraper alternately contact the rolling mop; When the rolling mop is in the forward rotation cleaning state, the lower scraper is in contact with the rolling mop, the upper scraper is separated from the rolling mop, and the wastewater scraped off by the lower scraper enters the wastewater tank through the filter screen; When the rolling mop is in the reverse rotation cleaning state, the upper scraper is in contact with the rolling mop, and the lower scraper is separated from the rolling mop. The sewage scraped off by the upper scraper enters the sewage tank through the filter screen. When the sewage tank is full of sewage, the sewage backwashes the filter screen and flows out through the gap between the lower scraper and the rolling mop.

2. The mop mechanism for a sweeper according to claim 1, characterized in that, The ends of the lower scraper and the upper scraper each have a scraper bevel for adhering to the rolling mop.

3. The mop mechanism for a sweeper according to claim 1, characterized in that, The rolling mop is connected to the mechanism housing via a first pivot shaft, and the output shaft of the motor is connected to the first pivot shaft; The sewage tank is connected to the housing of the mechanism via a second pivot shaft, which is parallel to the first pivot shaft.

4. The mop mechanism for a sweeper according to claim 3, characterized in that, The drive unit includes a motor, and the motor shaft of the motor is connected to the second pivot shaft.

5. The mop mechanism for a sweeper according to claim 3, characterized in that, The drive unit includes a lifting frame movably mounted in the mounting slot and a lifting drive component for driving the lifting frame to move up and down; A connecting sleeve is provided on the top plate of the sewage tank, and the distance between the connecting sleeve and the first pivot shaft is less than the distance between the second pivot shaft and the first pivot shaft. The lower end of the lifting frame is provided with a third pivot shaft, which is pivotally connected to the connecting sleeve.

6. The mop mechanism for a sweeper according to claim 5, characterized in that, The top plate of the housing has an opening for the lifting frame to pass through; The gap between the lifting frame and the top plate opening is through which the lifting drive component is located on the outside of the mechanism housing and connected to the lifting frame.

7. The mop mechanism for a sweeper according to claim 3, characterized in that, The top plate of the sewage tank has a mounting bracket at each end, and a second pivot shaft is mounted on each mounting bracket.

8. The mop mechanism for a sweeper according to claim 7, characterized in that, The mounting bracket extends at an angle, and the distance between the mounting bracket and the first pivot axis gradually decreases along the downward direction, with the second pivot axis mounted on the upper end of the mounting bracket.

9. A sweeping machine, characterized in that, The sweeper is equipped with a mop mechanism as described in any one of claims 1-8; The sweeper includes a wastewater box and a main unit water pump connected to the wastewater box via a pipe; The main pump is connected to the sewage tank via a pipeline; When the rolling mop is in the forward rotation cleaning state, the main unit water pump is in working state, and the sewage in the sewage tank is pumped into the sewage box. When the rolling mop is in the reverse rotation cleaning state, the main unit water pump is in the stopped working state.

10. A sweeping robot system, characterized in that, Includes a base station and a sweeping machine as described in claim 9; The base station has a tray at the bottom for the sweeper to enter for cleaning, and the tray has a nozzle. The base station also includes a base station clean water tank, a base station wastewater tank, a base station water supply pump, and a base station water pump; The base station water tank, the base station water supply pump, and the nozzle are connected in sequence via pipes. The tray, the base station water pump, and the base station sewage tank are connected in sequence by pipes; When the sweeper is in the tray and the rolling mop is in the forward rotation cleaning state, the base station water pump is connected to the wastewater box, the base station water pump is disconnected from the tray, the base station water supply pump and the base station water pump are both in working state, and the wastewater in the wastewater box is pumped to the base station wastewater tank by the base station water pump. When the sweeper is in the tray and the rolling mop is in the reverse rotation cleaning state, the base station water pump is disconnected from the wastewater box, and the base station water pump is connected to the tray. Both the base station water supply pump and the base station water pump are in working state, and the wastewater in the tray is pumped to the base station wastewater tank by the base station water pump.

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