Robot for cleaning carpet through high-temperature steam

Abstract

The invention relates to the technical field of robots, in particular to a robot for cleaning carpets by high-temperature steam, which comprises a robot bearing chassis, and a water absorption scraper, a cleaning rolling brush and a cleaning nozzle which are mounted on the robot bearing chassis, and the cleaning rolling brush is positioned between the water absorption scraper and the cleaning nozzle. A low-pressure and high-temperature steam generator is arranged on the robot bearing chassis and communicates with the cleaning spray head. High-temperature steam is generated through the low-pressure high-temperature steam generator, bacteria in the carpet can be deeply killed through high temperature, deep stains and dirt are softened, efficient cleaning of the cleaning rolling brush is facilitated, a steam pretreatment mode is achieved, stubborn stains are softened through steam, and then thorough cleaning is conducted.

Description

Technical Field

[0001] The invention relates to the technical field of robots, in particular to a robot for cleaning carpets using high-temperature steam. Background Art

[0002] As people have higher and higher requirements for the cleaning of commercial environments such as hotels and banquet halls, especially items such as carpets that are easy to hide dirt and grime, they need to be cleaned more comprehensively. Traditional carpet cleaning methods can only absorb some floating dust through vacuuming equipment, or manually scrub, which is not only time-consuming and labor-intensive when facing large areas of carpets, but also difficult to achieve ideal cleaning effects; although there are some automatic cleaning robots on the market, most of them are limited to vacuuming functions and have limited ability to remove deep stains on carpets. Therefore, the development of an unmanned steam cleaning robot that can achieve deep cleaning of carpets has become an urgent need in the cleaning industry. Summary of the invention

[0003] The object of the present invention is to provide a robot for cleaning carpets using high-temperature steam to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a robot for cleaning carpets using high-temperature steam, comprising a robot carrying chassis and a squeegee, a cleaning roller brush and a cleaning nozzle installed on the robot carrying chassis, the cleaning roller brush being located between the squeegee and the cleaning nozzle, a low-pressure and high-temperature steam generator being arranged on the robot carrying chassis, the low-pressure and high-temperature steam generator being connected with the cleaning nozzle, a sewage tank, a clean water tank and an exhaust module being arranged on the robot carrying chassis, the clean water tank inputting water flow into the low-pressure and high-temperature steam generator to generate steam, and ejecting the steam through the cleaning nozzle, a connecting pipe being arranged between the squeegee and the sewage tank, a negative pressure pipe being arranged between the sewage tank and the exhaust module, when the exhaust module is running, the interior of the sewage tank is placed in a negative pressure state through the negative pressure pipe, at which time the squeegee generates negative pressure suction through the connection of the connecting pipe, sucks the sewage in the carpet, stores it in the sewage tank, and accelerates the drying of the carpet.

[0005] A driving wheel and a direction control wheel are arranged at the bottom of the robot supporting chassis, the driving wheel is used to drive the robot to move forward, and the direction control wheel is used to control the direction by rotating. A robot shell is installed above the robot supporting chassis, and the sewage tank, clean water tank and exhaust module are arranged in the robot shell.

[0006] An automatic driving sensor is arranged on the robot shell, and the automatic driving sensor cooperates with the automatic driving algorithm to realize the automatic driving of the robot. A battery pack is installed on the robot supporting chassis, and the battery pack is used to power the robot.

[0007] A roller brush motor is installed on the robot supporting chassis, a transmission belt is provided between the roller brush motor and the cleaning roller brush, the roller brush motor drives the cleaning roller brush to rotate and clean through the transmission belt, and a water inlet is provided on the clean water tank.

[0008] An inner suspension plate is fixedly arranged inside the sewage tank, and a semiconductor refrigeration plate is embedded and fixed in the inner suspension plate. The semiconductor refrigeration plate cools on one side and generates heat on the other side when powered on. The cooling surface of the semiconductor refrigeration plate is arranged upward, and a cooling block is arranged on the cooling surface of the semiconductor refrigeration plate for cooling. A liquid collecting cone groove is provided on the upper surface of the cooling block, and a discharge cavity is provided inside the cooling block, and the lowest point of the liquid collecting cone groove is connected to the discharge cavity.

[0009] A docking pipe is provided at the end of the discharge cavity, a relay additional box is fixedly provided on the surface of the sewage tank, an input control valve is provided between the docking pipe and the relay additional box, an output control valve is provided at the bottom of the relay additional box, the output control valve is connected with the clean water tank, a water level sensor is provided inside the relay additional box, when the water level in the relay additional box is lower than the set value, the input control valve is opened and the output control valve is closed; when the water level in the relay additional box is higher than the set value, the input control valve is closed and the output control valve is opened.

[0010] A top cover is arranged above the cooling block, a supporting pole is arranged between the top cover and the inner suspension plate, a waterproof and breathable membrane is arranged on the outside of the supporting pole, the waterproof and breathable membrane can block water droplets and pass water vapor, a heat dissipation guide plate is attached to the bottom heating surface of the semiconductor refrigeration plate, a humidifying column is fixedly arranged on the lower surface of the heat dissipation guide plate, a suspended humidifying plate is arranged on the outside of the humidifying column, a circular groove is opened through the upper and lower parts of the suspended humidifying plate, and a liquid guide cotton ring is arranged in the circular groove, the humidifying column passes through the liquid guide cotton ring and is in friction contact with the liquid guide cotton ring.

[0011] An axially movable riser is fixedly provided on the lower surface of the suspended humidifying plate, a conveying tube cavity is provided in the axially movable riser, an intra-plate flow channel is provided in the suspended humidifying plate, the conveying tube cavity is communicated with a circular groove penetrating up and down in the suspended humidifying plate through the intra-plate flow channel, a cache notch is penetrated through the surface of the axially movable riser, a cache rubber bag is provided for the external seal of the axially movable riser, the conveying tube cavity is communicated with the cache rubber bag through the cache notch, the cache rubber bag is elastic, an outer mounting ring is fixedly provided on the surface of the axially movable riser, a counterweight ring is fixedly provided on the mounting outer ring, a suspension support spring is provided below the mounting outer ring, a support arm is provided below the suspension support spring, and the suspension support spring applies an upward supporting elastic force to the mounting outer ring, so that the suspended humidifying plate is in the middle position of the humidifying column in a static state.

[0012] A suction cover is fixedly provided at the lower end of the axially movable riser, a suction piston is sealed and contacted in the suction cover, a piston base is fixedly provided at the bottom of the suction piston, a filter chamber is opened at the bottom of the piston base, and a filter membrane is provided in the filter chamber.

[0013] A first one-way valve is embedded and installed on the upper surface of the suction piston, and the filter chamber is connected to the upper surface of the suction piston through the first one-way valve. The first one-way valve allows liquid to flow from the filter chamber to the upper surface area of ​​the suction piston in one direction. A second one-way valve is embedded and installed on the inner upper surface of the suction cover. The second one-way valve allows liquid to flow from the suction cover to the delivery tube cavity in one direction.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention uses a high-temperature steam cleaning robot for carpets. The low-pressure high-temperature steam generator generates high-temperature steam, which can deeply kill bacteria in the carpet through high temperature, soften deep stains and dirt to facilitate efficient cleaning by the cleaning roller brush, and has a steam pretreatment mode, which first softens stubborn stains with steam before thorough cleaning;

[0016] The rotating brush of the cleaning roller can penetrate deep into the carpet fibers to remove dirt. The squeegee design can quickly absorb moisture from the carpet surface and shorten the drying time.

[0017] The present invention can actively collect condensate in the sewage tank and input it into the clean water tank through the cooperation of the cooling block, liquid collecting cone groove and relay additional box and other structures. The storage capacity of the sewage tank and the clean water tank is indirectly increased through the above-mentioned circulation, the frequency of sewage discharge and water addition can be reduced, and the utilization rate of water resources can be improved. Moreover, through the arrangement of the relay additional box and other structures, the influence of negative pressure in the sewage tank can be avoided.

[0018] Through the coordination of the humidification column, suspended humidification plate, axially driven riser and other structures, the robot's movement and bumps can be used to drive the sewage to be filtered and input into the liquid guide cotton ring. In conjunction with the up and down movement of the suspended humidification plate, the filtered sewage can be coated on the surface of the humidification column. The temperature of the humidification column can be used to evaporate the sewage to form water vapor, thereby increasing the humidity of the sewage tank and assisting in condensation and collection of liquid. At the same time, evaporation absorbs heat to improve the heat dissipation effect of the semiconductor refrigeration sheet, and the suspended humidification plate drives the liquid guide cotton ring to move up and down, so that the liquid guide cotton ring can continuously wipe the surface of the humidification column to prevent dirt from adhering to the surface of the humidification column and affecting heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2It is a schematic diagram of the overall structure of the present invention from another angle.

[0021] Figure 3 It is a schematic diagram of the bottom structure of the overall structure of the present invention.

[0022] Figure 4 This is a schematic diagram of removing the robot shell of the present invention.

[0023] Figure 5 The front view is shown with the robot housing removed.

[0024] Figure 6 It is a partial structural schematic diagram of the present invention.

[0025] Figure 7 It is a schematic diagram of the sewage tank structure of the present invention.

[0026] Figure 8 It is a schematic diagram of the internal structure of the sewage tank of the present invention.

[0027] Fig. 9 for Figure 8 Enlarged view of point A in the middle.

[0028] Fig.10 This is a front view of the internal structure of the sewage tank of the present invention.

[0029] Fig.11 It is a three-dimensional half-section schematic diagram of the sewage tank of the present invention.

[0030] Fig.12 for Fig.11 Enlarged view of point B in the middle.

[0031] Fig.13 for Fig.11 Enlarged view of center C.

[0032] In the figure: 1. Robot chassis; 2. Squeegee; 3. Cleaning roller brush; 4. Cleaning nozzle; 5. Sewage tank; 6. Clean water tank; 7. Connecting pipe; 8. Negative pressure pipe; 9. Air extraction module; 101. Driving wheel; 102. Direction control wheel; 103. Robot shell; 104. Automatic driving sensor; 105. Battery pack; 301. Roller brush motor; 302. Transmission belt; 601. Water injection port; 501. Inner suspension plate; 502. Semiconductor cooling plate; 503. Cooling block; 504. Liquid collecting cone groove; 505. Exhaust cavity; 506. Docking tube; 507. Relay additional box; 508. Input control valve; 5 09. Output control valve; 510. Top cover; 511. Supporting pole; 512. Waterproof breathable membrane; 513. Heat dissipation guide plate; 514. Humidification column; 515. Suspended humidification plate; 516. Liquid guide cotton ring; 517. Axial riser; 518. Delivery tube cavity; 519. Inner flow channel of plate; 520. Cache notch; 521. Cache rubber bag; 522. Mounting outer ring; 523. Counterweight ring; 524. Suspended support spring; 525. Support arm; 526. Extraction cover; 527. Extraction piston; 528. Piston base; 529. Filter chamber; 530. Filter membrane; 531. First one-way valve; 532. Second one-way valve. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 13 The present invention provides a technical solution: a robot for cleaning carpets using high-temperature steam, comprising a robot supporting chassis 1 and a squeegee 2, a cleaning roller brush 3 and a cleaning nozzle 4 installed on the robot supporting chassis 1, wherein the cleaning roller brush 3 is located between the squeegee 2 and the cleaning nozzle 4, and an auxiliary cutting blade can be provided at the cleaning roller brush 3, which can assist in cutting when the cleaning roller brush 3 is entangled with foreign objects such as hair, and the blade can be perpendicular to the axial direction of the cleaning roller brush 3.

[0035] A low-pressure and high-temperature steam generator is arranged on the robot supporting chassis 1. The low-pressure and high-temperature steam generator includes a sine wave generator, a heating element, and a temperature and pressure control module. The sine wave generator generates a stable sine wave signal, and the frequency and amplitude can be adjusted as needed. The heating element receives the sine wave signal and quickly converts water into high-temperature and low-pressure steam through electromagnetic induction heating. The temperature and pressure control module monitors the temperature and pressure of the steam in real time through sensors to ensure stable operation within a safe range.

[0036] The low-pressure and high-temperature steam generator is connected to the cleaning nozzle 4. A sewage tank 5, a clean water tank 6 and an exhaust module 9 are provided on the robot supporting chassis 1. The clean water tank 6 inputs water into the low-pressure and high-temperature steam generator to generate steam, and sprays it out through the cleaning nozzle 4. The clean water tank 6 has a pipeline directly connected to the cleaning nozzle 4 through a valve, so that the cleaning nozzle 4 can directly spray water when needed. When spraying water, the cleaning nozzle 4 can automatically mix the carpet cleaner and the defoaming agent through a side pipe, so as to effectively remove odors and bacteria and protect human health.

[0037] A connecting pipe 7 is provided between the squeegee 2 and the sewage tank 5, and a negative pressure pipe 8 is provided between the sewage tank 5 and the air extraction module 9. When the air extraction module 9 is in operation, the interior of the sewage tank 5 is in a negative pressure state through the negative pressure pipe 8. At this time, the squeegee 2 generates negative pressure suction through the connection of the connecting pipe 7, sucks the sewage in the carpet, stores it in the sewage tank 5, and accelerates the drying of the carpet. The squeegee 2 generates negative pressure suction to suck the sewage in the carpet. The sewage falls into the sewage tank 5 under the action of gravity. The negative pressure pipe 8 is at the top of the sewage tank 5, so the gas is sucked upward into the air extraction module 9 to achieve the separation of sewage and negative pressure gas. To improve the separation effect, a waterproof and breathable membrane can be added according to needs.

[0038] A driving wheel 101 and a direction control wheel 102 are provided at the bottom of the robot supporting chassis 1. The driving wheel 101 is used to drive the robot to move forward, and the direction control wheel 102 is used to control the direction by rotating. A robot shell 103 is installed above the robot supporting chassis 1, and a sewage tank 5, a clean water tank 6 and an exhaust module 9 are arranged in the robot shell 103.

[0039] An automatic driving sensor 104 is provided on the robot shell 103. The automatic driving sensor 104 includes a laser radar, a camera and an infrared sensor. The laser radar and camera sensor fusion technology is used to obtain environmental information, and a map of the cleaning area is constructed through SLAM technology. A path planning algorithm such as an AI algorithm or a Dijkstra algorithm is used to plan the optimal cleaning path according to the map information. During the cleaning process, obstacles are detected in real time and the path is adjusted to ensure the safe operation of the robot.

[0040] The autonomous driving sensor 104 cooperates with the autonomous driving algorithm to realize the autonomous driving of the robot. A battery pack 105 is installed on the robot's supporting chassis 1. The battery pack 105 is used to power the robot. When the battery power of the battery pack 105 is lower than a certain threshold, it automatically returns to the charging station for charging. The user can stop the robot at any time through the mobile phone APP or the robot panel.

[0041] A roller brush motor 301 is installed on the robot supporting chassis 1, and a transmission belt 302 is provided between the roller brush motor 301 and the cleaning roller brush 3. The roller brush motor 301 drives the cleaning roller brush 3 to rotate and clean through the transmission belt 302. A water inlet 601 is provided on the clean water tank 6. Both the clean water tank 6 and the sewage tank 5 have the functions of automatic water addition and automatic sewage discharge, which are realized by automatic valves in conjunction with automatic driving.

[0042] An inner suspension plate 501 is fixedly provided inside the sewage tank 5, and a semiconductor refrigeration plate 502 is embedded and fixed in the inner suspension plate 501. When the semiconductor refrigeration plate 502 is powered on, it cools on one side and generates heat on the other side. The cooling surface of the semiconductor refrigeration plate 502 is arranged upward, and a cooling block 503 is arranged on the cooling surface of the semiconductor refrigeration plate 502 for cooling. A liquid collecting cone groove 504 is provided on the upper surface of the cooling block 503, and a discharge cavity 505 is provided inside the cooling block 503, and the lowest point of the liquid collecting cone groove 504 is connected to the discharge cavity 505.

[0043] The end of the discharge cavity 505 is connected to a docking pipe 506, a relay additional box 507 is fixedly provided on the surface of the sewage tank 5, an input control valve 508 is provided between the docking pipe 506 and the relay additional box 507, an output control valve 509 is provided at the bottom of the relay additional box 507, the output control valve 509 is connected to the clean water tank 6, and a water level sensor is provided inside the relay additional box 507. When the water level in the relay additional box 507 is lower than the set value, the input control valve 508 is opened and the output control valve 509 is closed; when the water level in the relay additional box 507 is higher than the set value, the input control valve 508 is closed and the output control valve 509 is opened.

[0044] A top cover 510 is arranged above the cooling block 503, and a supporting pole 511 is arranged between the top cover 510 and the inner suspension plate 501. A waterproof and breathable membrane 512 is arranged on the outside of the supporting pole 511, and the waterproof and breathable membrane 512 can block water droplets and pass water vapor. A heat dissipation guide plate 513 is attached to the bottom heating surface of the semiconductor refrigeration plate 502, and a humidifying column 514 is fixedly arranged on the lower surface of the heat dissipation guide plate 513. A suspended humidifying plate 515 is arranged on the outside of the humidifying column 514. A circular groove is opened from top to bottom in the suspended humidifying plate 515, and a liquid guide cotton ring 516 is arranged in the circular groove. The humidifying column 514 passes through the liquid guide cotton ring 516 and is in friction contact with the liquid guide cotton ring 516.

[0045] The lower surface of the suspended humidifying plate 515 is fixedly provided with an axially movable riser 517, in which a delivery lumen 518 is provided, and an in-plate flow channel 519 is provided in the suspended humidifying plate 515. The delivery lumen 518 is connected to a circular groove running through the upper and lower parts of the suspended humidifying plate 515 through the in-plate flow channel 519. A buffer notch 520 is provided through the surface of the axially movable riser 517. A buffer rubber bag 521 is provided for the external sealing of the axially movable riser 517. The delivery lumen 518 is connected to the buffer rubber bag 521 through the buffer notch 520. The capsule 521 is connected, the buffer rubber bag 521 is elastic, the surface of the axially movable vertical pipe 517 is fixedly provided with a mounting outer ring 522, the mounting outer ring 522 is fixedly provided with a counterweight ring 523, a suspension support spring 524 is provided below the mounting outer ring 522, a support arm 525 is provided below the suspension support spring 524, and the suspension support spring 524 applies an upward supporting elastic force to the mounting outer ring 522, so that the suspended humidification plate 515 is in the middle position of the humidification column 514 in a static state.

[0046] A suction cover 526 is fixedly provided at the lower end of the axially movable vertical pipe 517, a suction piston 527 is sealed and contacted in the suction cover 526, a piston base 528 is fixedly provided at the bottom of the suction piston 527, a filter chamber 529 is provided at the bottom of the piston base 528, and a filter membrane 530 is provided in the filter chamber 529.

[0047] A first one-way valve 531 is embedded in the upper surface of the suction piston 527, and the filter chamber 529 is connected to the upper surface of the suction piston 527 through the first one-way valve 531. The first one-way valve 531 allows liquid to flow unidirectionally from the filter chamber 529 to the upper surface area of ​​the suction piston 527. A second one-way valve 532 is embedded in the inner upper surface of the suction cover 526. The second one-way valve 532 allows liquid to flow unidirectionally from the suction cover 526 to the delivery tube cavity 518.

[0048] like Figure 3 As shown in the figure, the robot housing 103 is provided with an operating handle, which can meet the manual and automatic working mode. When automatic driving is not required, the robot can be switched to the manual mode for operation. The cleaning roller brush 3 can be changed to a double roller design. By changing the single or double roller design of the cleaning roller brush 3 and the bristle material of the cleaning roller brush 3, the cleaning of different carpet surfaces can be met.

[0049] The robot of the present invention adopts high-temperature steam to clean carpets. Through the automatic driving sensor 104 and the automatic driving algorithm, it can realize automatic navigation driving, obstacle avoidance and intelligent cleaning route planning to ensure full coverage of the cleaning area. During the cleaning process, the carpet can be pre-treated by spraying high-temperature steam through the cleaning nozzle 4 to soften stubborn stains and sterilize at high temperature. The cleaning nozzle 4 can then spray liquid onto the carpet for the second time. At this time, the cleaning roller brush 3 rotates at high speed for deep cleaning. Finally, the squeegee 2 is used to absorb water under negative pressure to remove most of the sewage in the carpet. Especially under the action of high-temperature steam, the carpet can be dried quickly.

[0050] like Fig.12 As shown in the figure, when the semiconductor refrigeration sheet 502 is powered on, it cools on one side and generates heat on the other side. The cooling surface of the semiconductor refrigeration sheet 502 causes the cooling block 503 to cool down. At this time, the water vapor in the sewage tank 5 passes through the waterproof and breathable membrane 512 and condenses in the liquid collecting cone groove 504. The waterproof and breathable membrane 512 allows clean water vapor to pass through, and sewage droplets cannot splash onto the cooling block 503, thereby ensuring the cleanliness of the condensed water.

[0051] The condensed water gathers in the liquid collecting cone groove 504, flows naturally into the discharge cavity 505 and the docking cannula 506, and accumulates in the relay additional box 507 through the input control valve 508; when the water level sensor in the relay additional box 507 detects that the water level reaches the set value, the input control valve 508 is controlled to close and the output control valve 509 is opened. At this time, the condensed water in the relay additional box 507 flows naturally into the clean water tank 6 through the output control valve 509. After the flow is completed, the output control valve 509 is closed and the input control valve 508 is opened.

[0052] During the movement of the robot, crushing of foreign objects, uneven carpets, and carpet edges will cause the robot to bump. When the robot bumps, the counterweight ring 523 and the suspension support spring 524 cooperate to drive the axial riser 517 and the suspension humidification plate 515 to move up and down relative to the sewage tank 5.

[0053] like Fig.13 As shown in the figure, when the axially movable riser 517 moves up and down relative to the piston base 528, the suction cover 526 and the suction piston 527 move back and forth relative to each other, and cooperate with the first one-way valve 531 and the second one-way valve 532 to suck up the sewage at the bottom of the sewage tank 5, and after being filtered by the filter membrane 530, it is transported upward in the transport tube cavity 518. When the bumps are frequent, the transported filtered sewage can be buffered in the buffer rubber bag 521 and slowly released by the elasticity of the buffer rubber bag 521.

[0054] The filtered sewage finally reaches the liquid guide cotton ring 516 through the flow channel 519 in the plate, so that the liquid guide cotton ring 516 is moistened. When the suspended humidifying plate 515 moves up and down, the liquid guide cotton ring 516 can coat the filtered sewage on the surface of the humidifying column 514, and the temperature of the humidifying column 514 is used to evaporate the sewage to form water vapor, thereby increasing the humidity in the sewage tank 5, thereby assisting the cooling block 503 to condense and collect liquid; at the same time, evaporation absorbs heat, thereby improving the heat dissipation capacity of the heat dissipation guide plate 513 and the humidifying column 514, and improving the heat dissipation effect of the semiconductor refrigeration plate 502, and the suspended humidifying plate 515 drives the liquid guide cotton ring 516 to move up and down, so that the liquid guide cotton ring 516 can continuously wipe the surface of the humidifying column 514 to prevent dirt attached to the surface of the humidifying column 514 from affecting heat dissipation, and has the ability to automatically maintain cleanliness, reducing maintenance.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A robot for cleaning carpets using high-temperature steam, comprising a robot carrying chassis (1) and a squeegee (2), a cleaning roller brush (3) and a cleaning nozzle (4) mounted on the robot carrying chassis (1), characterized in that: The cleaning roller brush (3) is located between the squeegee (2) and the cleaning nozzle (4); a low-pressure high-temperature steam generator is arranged on the robot supporting chassis (1); the low-pressure high-temperature steam generator is connected to the cleaning nozzle (4); a sewage tank (5), a clean water tank (6) and an exhaust module (9) are arranged on the robot supporting chassis (1); the clean water tank (6) inputs water flow into the low-pressure high-temperature steam generator to generate steam, and then ejects it through the cleaning nozzle (4); a connecting pipe (7) is arranged between the squeegee (2) and the sewage tank (5); a negative pressure pipe (8) is arranged between the sewage tank (5) and the exhaust module (9); when the exhaust module (9) is in operation, the interior of the sewage tank (5) is in a negative pressure state through the negative pressure pipe (8); at this time, the squeegee (2) generates negative pressure suction through the connection of the connecting pipe (7), sucks the sewage in the carpet, and stores it in the sewage tank (5), thereby accelerating the drying of the carpet.

2. A robot for cleaning carpets using high temperature steam according to claim 1, characterized in that: A driving wheel (101) and a direction control wheel (102) are arranged at the bottom of the robot supporting chassis (1); the driving wheel (101) is used to drive the robot to move forward; the direction control wheel (102) is used to control the direction by rotating; a robot housing (103) is installed above the robot supporting chassis (1); and the sewage tank (5), the clean water tank (6) and the air extraction module (9) are arranged in the robot housing (103).

3. A robot for cleaning carpets using high temperature steam according to claim 2, characterized in that: The robot housing (103) is provided with an autonomous driving sensor (104), and the autonomous driving sensor (104) cooperates with an autonomous driving algorithm to realize autonomous driving of the robot. The robot supporting chassis (1) is provided with a battery pack (105), and the battery pack (105) is used to supply power to the robot.

4. The robot for cleaning carpets using high temperature steam according to claim 1, characterized in that: A roller brush motor (301) is installed on the robot supporting chassis (1); a transmission belt (302) is provided between the roller brush motor (301) and the cleaning roller brush (3) for transmission connection; the roller brush motor (301) drives the cleaning roller brush (3) to rotate and clean via the transmission belt (302); and a water inlet (601) is provided on the clean water tank (6).

5. The robot for cleaning carpets using high temperature steam according to claim 1, characterized in that: An inner suspension plate (501) is fixedly arranged inside the sewage tank (5), a semiconductor refrigeration plate (502) is embedded and fixed in the inner suspension plate (501), the semiconductor refrigeration plate (502) cools on one side and generates heat on the other side when powered on, the cooling surface of the semiconductor refrigeration plate (502) is arranged upward, a cooling block (503) is arranged on the cooling surface of the semiconductor refrigeration plate (502) for cooling, a liquid collecting cone groove (504) is provided on the upper surface of the cooling block (503), a discharge cavity (505) is provided inside the cooling block (503), and the lowest point of the liquid collecting cone groove (504) is connected to the discharge cavity (505).

6. A robot for cleaning carpets using high temperature steam according to claim 5, characterized in that: The end of the discharge cavity (505) is connected to a butt plug (506), a relay additional box (507) is fixedly arranged on the surface of the sewage tank (5), an input control valve (508) is arranged between the butt plug (506) and the relay additional box (507), an output control valve (509) is arranged at the bottom of the relay additional box (507), the output control valve (509) is connected to the clean water tank (6), and a water level sensor is arranged inside the relay additional box (507), when the water level in the relay additional box (507) is lower than the set value, the input control valve (508) is opened and the output control valve (509) is closed; when the water level in the relay additional box (507) is higher than the set value, the input control valve (508) is closed and the output control valve (509) is opened.

7. A robot for cleaning carpets using high temperature steam according to claim 6, characterized in that: A top cover (510) is arranged above the cooling block (503), a supporting pole (511) is arranged between the top cover (510) and the inner suspension plate (501), a waterproof and breathable membrane (512) is arranged outside the supporting pole (511), and the waterproof and breathable membrane (512) can block water droplets and pass water vapor. A heat dissipation guide plate (513) is attached to the bottom heating surface of the semiconductor refrigeration plate (502), a humidifying column (514) is fixedly arranged on the lower surface of the heat dissipation guide plate (513), a suspended humidifying plate (515) is arranged outside the humidifying column (514), a circular groove is opened through the upper and lower parts of the suspended humidifying plate (515), and a liquid guide cotton ring (516) is arranged in the circular groove, and the humidifying column (514) passes through the liquid guide cotton ring (516) and is in friction contact with the liquid guide cotton ring (516).

8. The robot for cleaning carpets using high temperature steam according to claim 7, characterized in that: An axially movable riser (517) is fixedly provided on the lower surface of the suspended humidifying plate (515), a conveying tube cavity (518) is provided in the axially movable riser (517), an in-plate flow channel (519) is provided in the suspended humidifying plate (515), the conveying tube cavity (518) is communicated with a circular groove penetrating from top to bottom in the suspended humidifying plate (515) through the in-plate flow channel (519), a buffer notch (520) is provided through the surface of the axially movable riser (517), a buffer rubber bag (521) is provided on the outer seal of the axially movable riser (517), the conveying tube cavity (518) is connected with the buffer rubber bag (521) through the buffer notch (520), and the conveying tube cavity (518) is connected with the buffer rubber bag (521) through the buffer notch (520). The humidifying column (514) and the humidifying plate (515) are connected to each other through a buffer rubber bag (521), the buffer rubber bag (521) is elastic, a mounting outer ring (522) is fixedly provided on the surface of the axially movable riser (517), a counterweight ring (523) is fixedly provided on the mounting outer ring (522), a suspension support spring (524) is provided below the mounting outer ring (522), a support arm (525) is provided below the suspension support spring (524), and the suspension support spring (524) applies an upward supporting elastic force to the mounting outer ring (522), so that the suspended humidifying plate (515) is located in the middle position of the humidifying column (514) in a static state.

9. The robot for cleaning carpets using high temperature steam according to claim 8, characterized in that: A suction cover (526) is fixedly provided at the lower end of the axially movable riser (517), a suction piston (527) is sealed and contacted in the suction cover (526), ​​a piston base (528) is fixedly provided at the bottom of the suction piston (527), a filter chamber (529) is provided at the bottom of the piston base (528), and a filter membrane (530) is provided in the filter chamber (529).

10. The robot for cleaning carpets using high temperature steam according to claim 9, characterized in that: A first one-way valve (531) is embedded and installed on the upper surface of the suction piston (527), and the filter chamber (529) is connected to the upper surface of the suction piston (527) through the first one-way valve (531). The first one-way valve (531) allows liquid to flow from the filter chamber (529) to the upper surface area of ​​the suction piston (527) in one direction. A second one-way valve (532) is embedded and installed on the inner upper surface of the suction cover (526), ​​and the second one-way valve (532) allows liquid to flow from the suction cover (526) to the delivery tube cavity (518) in one direction.

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