Agitator, sewage tank and base station

Abstract

The application provides a stirring device, a sewage tank and a base station, and belongs to the technical field of intelligent cleaning. The stirring device is applied to the sewage tank and is used for crushing dry garbage in the sewage tank. The stirring device comprises a motor and a transmission structure matched with the motor. The motor comprises an output shaft and a rotating shaft head fixedly connected with the output shaft. The transmission structure comprises a rotating shaft and a notch opened on the rotating shaft. The rotating shaft head partially extends into the notch, so as to drive the rotating shaft to rotate synchronously under the driving of the output shaft. An end of the rotating shaft away from the motor is provided with a stirring piece. The stirring piece is used for crushing the dry garbage in the sewage tank and forming dust when the rotating shaft rotates. The base station is provided with the rotating shaft head on the output shaft of the stirring device, the notch matched with the rotating shaft head on the rotating shaft and the stirring piece used for crushing the garbage, so that the output shaft can drive the rotating shaft to rotate, and then the stirring piece is driven to rotate, thereby realizing the crushing of the garbage in the sewage tank.

Description

TECHNICAL FIELD

[0001] The present application relates to a stirring device, a sewage tank and a base station, and belongs to the technical field of intelligent cleaning. BACKGROUND

[0002] Most of the existing base stations can clean the cleaning robot, that is, the sewage for cleaning the cleaning robot is recycled and stored, and the cleaning robot is supplemented with clean water and the garbage collected in the dust box of the cleaning robot is cleaned. However, the existing base station can only collect sewage in the sewage tank of the base station, and the user needs to clean it manually when the sewage is full, which reduces the cleaning efficiency of the base station and the cleaning robot.

[0003] Of course, there are also some base stations on the market that can realize sewage circulation. The sewage in the sewage tank is heated and evaporated, and then the steam is condensed to supplement the clean water. When the sewage in the sewage tank is evaporated, the solid garbage carried by the sewage is left at the bottom of the sewage tank and needs to be cleaned manually by the user. At the same time, the solid garbage is mutually adhered and cannot be quickly and conveniently cleaned, which reduces the service life of the sewage tank on the one hand and the user experience on the other hand.

[0004] Therefore, it is necessary to provide a stirring device, a sewage tank and a base station to solve the above problems. SUMMARY

[0005] The present application aims to provide a stirring device, a sewage tank and a base station to solve the problem of difficult cleaning of solid garbage in the existing sewage tank.

[0006] To achieve the above-mentioned purpose, the present application provides a stirring device applied to a sewage tank for breaking dry garbage in the sewage tank. The stirring device comprises a motor and a transmission structure matched with the motor. The motor comprises an output shaft and a rotating shaft head fixedly connected with the output shaft. The transmission structure comprises a rotating shaft and a notch opened on the rotating shaft. The rotating shaft head partially extends into the notch to drive the rotating shaft to rotate synchronously under the driving of the output shaft. An end of the rotating shaft away from the motor is provided with a stirring piece. The stirring piece is used to break the dry garbage in the sewage tank and form dust when the rotating shaft rotates.

[0007] As a further improvement of the present application, the stirring piece comprises a first blade and a second blade. The first blade and the second blade are stacked in the axial direction of the rotating shaft, and the first blade and the second blade are placed in cross with each other.

[0008] As a further improvement of the present application, the length of the first blade is greater than the length of the second blade.

[0009] As a further improvement of the present application, the bottom of the rotating shaft head is provided with a protrusion which extends into the gap and can slide in the gap, when the protrusion abuts against the inner wall of the gap, the rotating shaft head drives the rotating shaft to rotate synchronously, when the rotating shaft is stopped due to resistance, the protrusion can slide reversely and then slide forward under the control of the motor, so as to break the resistance and enable the rotating shaft to rotate normally.

[0010] As a further improvement of the present application, the protrusion extends from the bottom of the rotating shaft head to a side away from the output shaft, the gap is recessed downward from the top of the rotating shaft, and in the rotating direction of the output shaft, the size of the gap is greater than the size of the protrusion.

[0011] As a further improvement of the present application, the transmission structure further comprises a shell covering the outside of the rotating shaft, the bottom of the shell is provided with a through hole through which the rotating shaft passes, and the shell contains a sealing element which is sleeved on the outside of the rotating shaft and abuts against the inner wall of the shell to realize the sealing between the rotating shaft and the shell.

[0012] As a further improvement of the present application, the sealing element is arranged at the top of the through hole and seals the gap between the rotating shaft and the through hole, and the sealing element is a three-lip skeleton oil seal made of fluororubber product.

[0013] As a further improvement of the present application, the transmission structure further comprises a bearing sleeved on the outside of the rotating shaft, which is arranged between the rotating shaft and the shell and abuts against the inner wall of the shell.

[0014] To achieve the above-mentioned purpose, the present application provides a sewage tank, which comprises a tank body, a cover body covering the tank body, and the aforementioned stirring device connected with the cover body and capable of being accommodated in the tank body, the stirring device being capable of rotating in the tank body to crush dry garbage in the tank body.

[0015] To achieve the above-mentioned purpose, the present application provides a base station, which comprises the aforementioned sewage tank, a dust collection tank connected with the sewage tank, and a suction device connected with the dust collection tank, after the stirring device crushes dry garbage in the tank body into dust, the suction device causes negative pressure in the dust collection tank to transmit the dust in the sewage tank to the dust collection tank for storage.

[0016] The base station of the present application has the advantages that the base station of the present application is provided with a stirring device in the sewage tank to break dry garbage in the sewage tank, so as to realize cleaning of solid garbage in the sewage tank; the output shaft of the stirring device is provided with a rotating shaft head, the rotating shaft is provided with a notch matched with the rotating shaft head and a stirring piece for breaking garbage, so that the output shaft can drive the rotating shaft to rotate, and then drive the stirring piece to rotate, so as to break dry garbage in the sewage tank. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of the base station of the preferred embodiment of the present application.

[0018] Figure 2 is Figure 1 a perspective view of the dust collecting device.

[0019] Figure 3 is Figure 2 another perspective view of the dust collecting device.

[0020] Figure 4 is Figure 1 a perspective view of the steam passage.

[0021] Figure 5 is Figure 1 a perspective view of the sewage tank.

[0022] Figure 6 is Figure 1 a perspective view of the transfer tank.

[0023] Figure 7 is Figure 5 a perspective view of the cover body and the stirring device.

[0024] Figure 8 is Figure 7 another perspective view of the cover body and the stirring device.

[0025] Figure 9 is Figure 7 a perspective view of the stirring device.

[0026] Figure 10 is Figure 9 a partial enlarged view of the rotating shaft head.

[0027] Figure 11 is Figure 9 a sectional view of the stirring device.

[0028] Figure 12 is Figure 11 a partial enlarged view of the rotating shaft.

[0029] Explanation of reference numerals: 100 - base station, 101 - sewage tank, 102 - dust collecting device, 103 - dust collecting tank, 104 - steam passage, 105 - condensing device, 106 - containing cavity, 107 - transfer tank, 108 - transfer valve, 109 - fan, 110 - condenser;

[0030] 1 - tank, 2 - cover, 21 - mesh structure, 211 - through hole, 22 - mounting hole, 23 - reinforcing rib, 24 - first electrode, 25 - second electrode, 26 - third electrode;

[0031] 3 - stirring device, 31 - containing shell, 32 - motor, 321 - output shaft, 322 - rotating shaft head, 323 - protrusion, 33 - transmission structure, 331 - shell, 332 - rotating shaft, 333 - through hole, 334 - notch, 335 - bearing, 336 - sealing element, 34 - sealing ring, 35 - locking element, 36 - stirring element, 361 - first blade, 362 - second blade;

[0032] 4 - sewage port, 5 - steam port, 6 - dust collecting port, 7 - reversing valve, 71 - air vent, 72 - first dust collecting pipe, 73 - second dust collecting pipe, 74 - third dust collecting pipe, 75 - exhaust pipe, 8 - baffle, 81 - opening, 82 - driving element. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is described in detail below with reference to the drawings and specific embodiments.

[0034] Please refer to Figure 1 As shown in the drawings, the present application discloses a base station 100 for supplementing cleaning robot (not shown) with water, washing mop (not shown) and cleaning garbage in dust box (not shown). The base station 100 comprises containing cavity 106, water tank (not shown), transfer tank 107, sewage tank 101, condensing device 105, dust collecting tank 103 and dust collecting device 102, wherein the containing cavity 106 is arranged at the bottom of the base station 100, the transfer tank 107 is arranged at the top of the base station 100, the sewage tank 101 is arranged at the middle position of the base station 100 and communicates with the transfer tank 107, the dust collecting tank 103 is arranged between the sewage tank 101 and the containing cavity 106 and communicates with the sewage tank 101 and the containing cavity 106 respectively, the water tank is arranged beside the transfer tank 107 and the sewage tank 101, the cleaning robot is contained in the containing cavity 106, and the base station 100 performs the work of supplementing the cleaning robot with water, washing the mop and cleaning the garbage in the dust box in the containing cavity 106.

[0035] Specifically, the clean water tank is connected with the cleaning robot to supply clean water to the cleaning robot; the transfer tank 107 is connected with the containing cavity 106 at one end and with the sewage tank 101 at the other end, and is used to suck the sewage in the containing cavity 106 into the transfer tank 107 and temporarily store the sewage, and then input the sewage in the transfer tank 107 into the sewage tank 101 for treatment; the sewage tank 101 is used to heat and evaporate the sewage from the transfer tank 107 to separate the water and dry garbage in the sewage; one end of the condensing device 105 is connected with the sewage tank 101 and the other end is connected with the clean water tank, and is used to condense the steam generated by heating in the sewage tank 101 and input the steam into the clean water tank for storage, so as to realize the recycling of the sewage; one end of the dust collection tank 103 is connected with the sewage tank 101 and the dust box of the cleaning robot through the dust collection device 102, and the other end is connected with the containing cavity 106, and the dust collection device 102 is used to collect and store the dry garbage in the sewage tank 101 and the dry garbage in the dust box.

[0036] In the embodiment, the cleaning structure of the cleaning robot mop, the sewage recycling structure after cleaning, the water injection structure of the cleaning robot by the base station 100, the condensing structure of the base station 100, and the cooperation structure of the cleaning robot and the base station 100 can be designed according to the prior art, which will not be described in detail here. The main improvement of the embodiment is the sewage tank 101 and the dust collection device 102, so the specific structure of the sewage tank 101 and the dust collection device 102 will be described in detail in the following description.

[0037] The sewage tank 101, the dust collection tank 103, the suction device (not shown) and the dust collection device 102 together constitute a dust collection system, wherein the sewage tank 101 is internally provided with a heating device (not shown) and a crushing device 36, the heating device is used to heat and evaporate the sewage, and the crushing device 36 is used to crush the dry garbage in the sewage tank 101 into dust; one end of the dust collection tank 103 is connected with the sewage tank 101 through the dust collection device 102, and the other end is connected with the suction device, and the suction device is used to generate negative pressure in the dust collection tank 103 to collect and store the dust in the sewage tank 101.

[0038] Please refer to Figures 1 to 3 and in combination with Figure 5 As shown, the dust collection device 102 includes a reversing valve 7, a first dust collection pipe 72 connected between the reversing valve 7 and the sewage tank 101, and a second dust collection pipe 73 connected between the reversing valve 7 and the dust collection tank 103, and the sewage tank 101 is provided with a steam port 5 for air flow, when the heating device heats the sewage, the generated steam is discharged outward through the steam port 5; when the dust in the sewage tank 101 is cleaned, the reversing valve 7 connects the first dust collection pipe 72 and the second dust collection pipe 73, and the suction device forces the airflow to pass through the steam port 5 into the sewage tank 101, carries the dust in the sewage tank 101 into the dust collection tank 103, so as to clean the sewage tank 101.

[0039] Specifically, the dust collection port 6 is arranged on the sewage tank 101, the first dust collection pipe 72 is connected between the reversing valve 7 and the dust collection port 6, the reversing valve 7 includes a first connecting port (not shown) connected with the first dust collection pipe 72 and a second connecting port (not shown) connected with the second dust collection pipe 73, when the first connecting port and the second connecting port are opened at the same time, the first dust collection pipe 72 and the second dust collection pipe 73 are in conduction, so that the airflow enters the sewage tank 101 from the steam port 5, carries the dust in the sewage tank 101, and passes through the dust collection port 6, the first dust collection pipe 72, the first connecting port, the reversing valve 7, the second connecting port and the second dust collection pipe 73 in turn, and finally enters the dust collection tank 103 and filters the dust in the dust collection tank 103, so that the dust is stored in the dust collection tank 103. Preferably, the dust collection port 6 and the steam port 5 are arranged on the top of the sewage tank 101 and are arranged opposite to each other, so as to improve the cleaning strength of the airflow.

[0040] In this embodiment, when the dry garbage in the sewage tank 101 is cleaned, the crushing device is in operation to crush the dry garbage in the sewage tank 101 into dust, and the dust floats in the sewage tank 101, and the suction device is started at the same time, so that the airflow carries the dust raised into the dust collection tank 103, realizing the rapid cleaning of the dry garbage in the sewage tank 101. Of course, in other embodiments, the crushing device can be started first to crush the dry garbage in the sewage tank 101, and then the suction device is started to clean the crushed dry garbage, which is not limited here.

[0041] The reversing valve 7 further includes a third connecting port (not shown), and the dust collection device 102 further includes a third dust collection pipe 74 and an exhaust pipe 75. One end of the third dust collection pipe 74 is connected with the third connecting port of the reversing valve 7, and the other end is in communication with the containing cavity 106. One end of the exhaust pipe 75 is connected with the suction device, and the other end is also in communication with the containing cavity 106. When the third connecting port and the second connecting port of the reversing valve 7 are in conduction, the suction device is started to clean the dust in the containing cavity 106.

[0042] Specifically, the cleaning robot is internally provided with a dust box. When the cleaning robot is accommodated in the accommodating cavity 106, the third dust collecting pipe 74 and the exhaust pipe 75 are detachably connected with the dust box. When the dust box is cleaned, the second connecting port and the third connecting port of the reversing valve 7 are communicated, and the suction device is started. The airflow enters the dust box from the exhaust pipe 75, and carries the garbage in the dust box to pass through the third dust collecting pipe 74, the third connecting port, the reversing valve 7, the second connecting port and the second dust collecting pipe 73 in turn, and finally enters the dust collecting box 103. The garbage and the gas are separated in the dust collecting box 103. The separated garbage is stored in the dust collecting box 103, and the gas passes through the dust collecting box 103 and enters the suction device. After being accelerated by the suction device, the gas passes through the exhaust pipe 75 and enters the dust box, so as to improve the strength of the airflow and further improve the cleaning efficiency of the dust box. Preferably, the connection positions of the third dust collecting pipe 74 and the exhaust pipe 75 with the accommodating cavity 106 are arranged at an angle, so as to enhance the airflow through the inside of the dust box and further realize rapid cleaning of the garbage in the dust box.

[0043] Similarly, when the dust in the sewage tank 101 is cleaned, the airflow carries the dust in the sewage tank 101 into the dust collecting box 103 and separates in the dust collecting box 103. The separated dust passes through the dust collecting box 103 and the suction device, and is discharged into the accommodating cavity 106 through the exhaust pipe 75. Preferably, when the dust in the sewage tank 101 is cleaned, the cleaning robot is not accommodated in the accommodating cavity 106. Of course, in other embodiments, when the dust in the sewage tank 101 is cleaned, the cleaning robot can also be accommodated in the accommodating cavity 106. At this time, the exhaust pipe 75 is separated from the dust box, so as to avoid the airflow passing through the exhaust pipe 75 and entering the dust box.

[0044] Please refer to Figure 1 and Figure 4 As shown in the figures, the base station 100 comprises a condensing device 105 and a steam passage 104 connecting the condensing device 105 and the sewage tank 101. One end of the steam passage 104 is communicated with the steam port 5, and the other end is connected with the condensing device 105, so that the steam in the sewage tank 101 enters the condensing device 105 through the steam port 5 and the steam passage 104 to be condensed. The condensing device 105 is communicated with a clean water tank in the base station 100, so that the steam is condensed into liquid in the condensing device 105 and flows into the clean water tank to supplement the clean water in the clean water tank.

[0045] An opening 81 is formed on the wall of the steam passage 104, and a baffle 8 is arranged in the steam passage 104. The baffle 8 is located beside the opening 81 and is rotationally connected with the inner wall of the steam passage 104, so as to open / close the opening 81 and the steam passage 104.

[0046] Specifically, the steam passage 104 is arranged in a trumpet shape, one end with a smaller diameter is connected with the steam port 5, and the other end with a larger diameter is connected with the condensing device 105, the opening 81 is arranged on the upper wall of the steam passage 104 and penetrates through the upper wall, so that the steam passage 104 is in communication with the outside air, one end of the baffle 8 is arranged beside the opening 81 and is rotationally connected with the upper wall of the steam passage 104, so that the baffle 8 can be rotated to the horizontal direction to close the opening 81, and be rotated to the vertical direction to close the steam passage 104.

[0047] In this embodiment, the condensing device 105 includes a fan 109 and a condenser 110, specifically, the other end with a larger diameter of the steam passage 104 is connected with the fan 109, the fan 109 operates to generate negative pressure in the steam passage 104, so that the steam generated in the sewage tank 101 can quickly enter the steam passage 104; the condenser 110 is arranged between the fan 109 and the steam passage 104 and is accommodated in the steam passage 104, to condense the steam in the steam passage 104, and then is transmitted to the clean water tank to supplement the clean water in the clean water tank. Of course, in other embodiments, the specific structure of the condensing device 105 can also be designed according to the prior art, as long as it can realize the rapid transmission and condensation of the steam generated in the sewage tank 101, which is not limited here.

[0048] The baffle 8 has three working states, specifically:

[0049] In the first working state, the baffle 8 is rotated to the horizontal direction to cover the opening 81, so as to avoid the steam in the steam passage 104 overflowing outward from the opening 81, so that the steam can enter the condensing device 105 to the greatest extent for condensation.

[0050] When the baffle 8 is in the first working state, the fan 109 works to generate negative pressure in the sewage tank 101 and the steam passage 104, so that the steam in the sewage tank 101 can quickly pass through the steam passage 104 and be condensed at the condenser 110, the reversing valve 7 includes an air vent 71, when the heating device heats the sewage, the air vent 71 is in communication with the first dust collecting pipe 72, the airflow enters the sewage tank 101 from the air vent 71 and the first dust collecting pipe 72 to balance the air pressure in the sewage tank 101, and at the same time can carry the steam in the sewage tank 101 into the steam passage 104, so that the steam generated in the heating process can be discharged outward through the steam port 5.

[0051] In the second working state, the baffle 8 is rotated to the vertical direction to cover the steam port 5, so that the outside air can enter the steam passage 104 from the opening 81, and the water vapor in the air is condensed by the condensing device 105, and then flows into the clean water tank to supplement the clean water in the clean water tank.

[0052] In the third working state, the baffle 8 is rotated to partially open the opening 81, so that external air can enter the steam passage 104 from the opening 81, and then enter the sewage tank 101 through the steam port 5 to balance the air pressure in the sewage tank 101. Preferably, in this working state, the baffle 8 is rotated to an angle of 30° with the horizontal direction, of course, in other embodiments, the baffle 8 can be at an angle greater than 0° and less than 90° with the horizontal direction, which is not limited here.

[0053] When the baffle 8 is in the third working state, it is used to clean the dust in the sewage tank 101. Specifically, the first connecting port and the second connecting port of the reversing valve 7 are communicated, and the suction device is started to generate negative pressure in the dust collection tank 103 and the sewage tank 101. At this time, the airflow enters from the opening 81, then passes through the steam passage 104 and the steam port 5 into the sewage tank 101, and carries the dust in the sewage tank 101 into the first dust collection pipe 72, and then into the dust collection tank 103, to realize the cleaning of the dust in the sewage tank 101.

[0054] In this embodiment, the base station 100 further comprises a driving member 82 connected with the baffle 8. The driving member 82 is connected with the baffle 8 and is specifically arranged at one end of the baffle 8 connected with the upper wall of the steam passage 104. The baffle 8 is rotated by the driving member 82 to open or close the opening 81 and the steam passage 104, and further to realize automatic control of the baffle 8. Of course, in other embodiments, the driving member 82 can not be provided here, and the user can manually control the rotation of the baffle 8, which is not limited here.

[0055] Please refer to Figures 5 to 12 As shown in the figure, the sewage tank 101 comprises a tank body 1, a heating device arranged at the bottom of the tank body 1, a cover body 2 sealingly connected with the tank body 1, and a stirring device 3 connected with the cover body 2 and extending into the inside of the tank body 1. Specifically, the heating device is used to heat the sewage in the sewage tank 101 to evaporate the sewage into steam, so that the sewage in the sewage tank 101 realizes solid-liquid separation, and the liquid is vaporized into steam to be discharged outward, so as to leave the solid dry waste in the sewage tank 101. The stirring device 3 is located at the middle position of the cover body 2, and is used to crush the dry waste in the sewage tank 101 into dust, so that the airflow can carry the dust out of the sewage tank 101 to realize the cleaning of the dry waste in the sewage tank 101.

[0056] Please refer to Figure 8As shown, the cover 2 is provided with a mounting hole 22, a steam port 5 and a mesh structure 21 for steam to pass through. Specifically, the mounting hole 22 is in communication with the steam port 5, and the mesh structure 21 is accommodated in the mounting hole 22, so that the steam in the sewage tank 101 can pass through the mesh structure 21 and the steam port 5 to be outputted outward. The mesh structure 21 can also break the bubbles generated when the sewage is heated, so as to block the bubbles and avoid the dust carried in the bubbles from entering the condensing device 105 through the steam port 5, further avoiding the pollution of the clean water in the clean water tank. Preferably, the mounting hole 22 is oval, and the shape of the mesh structure 21 is similar to that of the mounting hole 22, so that the mesh structure 21 can be installed in the mounting hole 22. Of course, in other embodiments, the shapes of the mounting hole 22 and the mesh structure 21 can also be other types, such as square, circular or irregular shape. The mesh structure 21 can also be integrally formed with the cover 2, which is not limited here.

[0057] The mesh structure 21 is provided with a plurality of through holes 211 for steam to pass through, for breaking the bubbles and releasing the steam in the bubbles, while avoiding the dust carried in the bubbles from passing through the mesh structure 21. Preferably, the through holes 211 are circular holes, and the diameter of the through holes 211 is not greater than 10 mm. Of course, in other embodiments, the through holes 211 can also be square holes, polygonal holes or irregular holes, and the diameter of the through holes 211 can also be other values, as long as the bubbles can be intercepted and prevented from passing through the mesh structure 21, which is not limited here.

[0058] Specifically, please refer to Figure 7 and Figure 8 As shown, the cover 2 is connected with a first electrode 24, a second electrode 25 and a third electrode 26 extending into the tank 1. The first electrode 24 is arranged beside the mesh structure 21 to detect the height of the bubbles generated when the sewage in the tank 1 is heated. The third electrode 26 extends to near the bottom of the tank 1 to detect the height of the sewage liquid surface in the tank 1. The second electrode 25 extends into the tank 1 to communicate with the first electrode 24 and the third electrode 26 respectively, so as to detect the height of the bubbles and the height of the sewage liquid surface in the tank 1 respectively. Preferably, the first electrode 24 and the third electrode 26 are positive electrodes, and the second electrode 25 is a ground electrode. Of course, in other embodiments, the first electrode 24 and the third electrode 26 can also be ground electrodes, and the second electrode 25 can be a positive electrode. A sensor can also be used instead of the second electrode 25 and the third electrode 26. The sensor is arranged on the inner side wall of the tank 1 to detect the height of the sewage liquid surface in the tank 1, which is not limited here.

[0059] The lengths of the second electrode 25 and the third electrode 26 extending into the box 1 are greater than the length of the first electrode 24 extending into the box 1. When the sewage in the box 1 rises to the point that the second electrode 25 and the third electrode 26 are connected, the injection of sewage into the sewage tank 101 is stopped. When the bubbles in the box 1 rise to the point that the first electrode 24 is contacted, the first electrode 24 and the second electrode 25 are connected, the heating device in the sewage tank 101 is stopped or the heating power is reduced to reduce the generation of bubbles in the sewage tank 101, and the height of the bubbles in the sewage tank 101 is further controlled. Preferably, the length of the second electrode 25 extending into the box 1 is the same as the length of the third electrode 26 extending into the box 1. On the one hand, the height of the liquid surface in the box 1 is controlled, and on the other hand, the manufacturing cost of the sewage tank 101 is reduced.

[0060] The base station 100 further comprises a transfer valve 108 arranged between the transfer tank 107 and the sewage tank 101, and the cover 2 is further provided with a sewage outlet 4. One end of the transfer valve 108 is connected with the transfer tank 107, and the other end is connected with the sewage outlet 4. The transfer valve 108 is used to control the input of sewage from the transfer tank 107 to the sewage tank 101. When the second electrode 25 and the third electrode 26 in the sewage tank 101 are not connected, the transfer valve 108 is opened to make the sewage in the transfer tank 107 flow into the sewage tank 101. When the second electrode 25 and the third electrode 26 in the sewage tank 101 are connected, the transfer valve 108 is closed to stop the injection of sewage into the sewage tank 101. Preferably, the transfer valve 108 is an electromagnetic valve, and the base station 100 comprises a control system for controlling the opening and closing of the electromagnetic valve.

[0061] In the embodiment, the cover 2 is further provided with a receiving shell 31 receiving the stirring device 3 and a reinforcing rib 23 connected with the receiving shell 31. The reinforcing rib 23 is connected with the outer side wall of the receiving shell 31 to fix the second electrode 25 and the third electrode 26, so as to prolong the service life of the second electrode 25 and the third electrode 26. The second electrode 25 and the third electrode 26 are arranged on the two sides of the receiving shell 31, so that the detection of the liquid surface height in the box 1 is more accurate. Of course, in other embodiments, the reinforcing rib 23 can not be arranged, and the second electrode 25 and the third electrode 26 can be arranged at any position on the cover 2, which is not limited herein.

[0062] For details, please refer to Figures 9 to 12As shown, the stirring device 3 comprises a motor 32 and a transmission structure 33 matched with the motor 32, the motor 32 comprises an output shaft 321 and a rotating shaft head 322 fixedly connected with the output shaft 321, the transmission structure 33 comprises a rotating shaft 332 and a notch 334 opened on the rotating shaft 332, the rotating shaft head 322 partially extends into the notch 334, so as to drive the rotating shaft 332 to rotate synchronously under the driving of the output shaft 321, and an agitator 36 is arranged at the end of the rotating shaft 332 away from the motor 32, the agitator 36 is used for breaking the dry garbage in the sewage tank 101 and forming dust when the rotating shaft 332 rotates, and the agitator 36 is the breaking device described above.

[0063] Specifically, the motor 32 is accommodated in the accommodation shell 31, one end of the output shaft 321 extends into the accommodation shell 31 and is connected with the motor 32, so that the motor 32 can drive the output shaft 321 to rotate, the other end of the output shaft 321 is arranged outside the accommodation shell 31 and forms the rotating shaft head 322, one end of the accommodation shell 31 is fixedly connected or integrally formed with the cover 2, and the other end is sealingly connected with the transmission structure 33, so as to avoid the sewage from entering the accommodation shell 31 to cause damage to the motor 32.

[0064] The bottom of the rotating shaft head 322 is provided with a protrusion 323, the protrusion 323 extends into the notch 334 and can slide in the notch 334, when the protrusion 323 abuts against the inner wall surface of the notch 334, the rotating shaft head 322 drives the rotating shaft 332 to rotate synchronously, so that the agitator 36 rotates at high speed under the driving of the rotating shaft 332, so as to break the dry garbage in the sewage tank 101, when the dry garbage in the sewage tank 101 is clumped or adhered to the inner wall of the tank 1, the agitator 36 cannot directly break the dry garbage, so that the rotating shaft 332 is stopped due to resistance, at this time, the protrusion 323 can slide reversely and then slide forward under the control of the motor 32, so as to break the resistance and enable the rotating shaft 332 to rotate normally.

[0065] In the embodiment, the protrusion 323 extends from the bottom of the rotating shaft head 322 to the side away from the output shaft 321, the notch 334 is recessed downward from the top of the rotating shaft 332, and in the rotating direction of the output shaft 321, the size of the notch 334 is greater than the size of the protrusion 323, so that the protrusion 323 can slide reversely and then slide forward in the notch 334, so that the agitator 36 can obtain greater impact force to break the clumped dry garbage, of course, in other embodiments, the protrusion 323 can extend from the outer side wall of the rotating shaft head 322 to the direction away from the rotating shaft head 322, at this time, part of the rotating shaft head 322 extends into the rotating shaft 332, so that the protrusion 323 can be accommodated in the notch 334, so as to realize the transmission between the output shaft 321 and the rotating shaft 332.

[0066] The stirring piece 36 comprises a first blade 361 and a second blade 362, the first blade 361 and the second blade 362 are stacked in the axial direction of the rotating shaft 332, and the first blade 361 and the second blade 362 are arranged in cross with each other, the length of the first blade 361 is greater than the length of the second blade 362. In this way, the first blade 361 and the second blade 362 with different lengths can crush the dry garbage in the sewage tank 101, the second blade 362 can break the garbage in a small radius range, and the first blade 361 can break the garbage in a large radius range, so as to fully crush the garbage in the sewage tank 101 and form dust, and the dust is lifted in the crushing process, so that the airflow can carry the dust and realize the cleaning of the dust in the sewage tank 101.

[0067] In the embodiment, the distance between the stirring piece 36 and the bottom of the box body 1 is less than the distance between the third electrode 26 and the bottom of the box body 1, and also less than the distance between the second electrode 25 and the bottom of the box body 1, so as to avoid damaging the second electrode 25 and the third electrode 26 when the stirring piece 36 rotates, and also to enable the stirring piece 36 to crush the garbage in the box body 1, so as to avoid the garbage from being bonded in the box body 1 to form a dead angle. Of course, in the embodiment without the reinforcing rib 23, the distance between the second electrode 25 and / or the third electrode 26 and the bottom of the box body 1 can also be less than the distance between the stirring piece 36 and the bottom of the box body 1, and at this time, the second electrode 25 and the third electrode 26 are arranged on the side away from the stirring piece 36, so as to avoid directly damaging the second electrode 25 and the third electrode 26 when the stirring piece 36 rotates.

[0068] The transmission structure 33 comprises a shell 331 covering the outside of the rotating shaft 332, the bottom of the shell 331 is provided with a through hole 333 for the rotating shaft 332 to pass through, the shell 331 contains a sealing piece 336, the sealing piece 336 is sleeved on the outside of the rotating shaft 332 and abuts against the inner side wall of the shell 331, so as to realize the sealing between the rotating shaft 332 and the shell 331. Specifically, the sealing piece 336 is arranged at the top of the through hole 333 and seals the gap between the rotating shaft 332 and the through hole 333, and preferably, the sealing piece 336 is a three-lip skeleton oil seal made of fluororubber product, that is, the sealing piece 336 has three layers of convex strips inside, and the three layers of convex strips all abut against the rotating shaft 332, so as to realize the rotation of the rotating shaft 332 and also realize the waterproof between the rotating shaft 332 and the shell 331, thereby improving the service life of the transmission structure 33.

[0069] The transmission structure 33 further comprises a bearing 335 sleeved outside the rotating shaft 332, which is arranged between the rotating shaft 332 and the shell 331 and abuts against the inner side wall of the shell 331 to fix the rotating shaft 332 in the shell 331. In the embodiment, two rotating shafts 332 are arranged at two ends of the shell 331 to fix the rotating shaft 332 in the shell 331 and ensure that the rotating shaft 332 rotates on the central axis of the shell 331, so as to ensure the stability of the stirring device 3. Of course, in other embodiments, the bearing 335 can be one or more, as long as it can realize the stable rotation of the rotating shaft 332 in the shell 331, which is not limited here.

[0070] The end of the accommodating shell 31 away from the cover 2 is provided with a locking hole (not shown), and the end of the transmission structure 33 close to the accommodating shell 31 is provided with a fixing hole (not shown) corresponding to the locking hole. The stirring device 3 further comprises a locking piece 35 and a sealing ring 34 sleeved outside the locking piece 35. The accommodating shell 31 abuts against the shell 331, so that the locking hole and the fixing hole correspond to each other. The locking piece 35 passes through the sealing ring 34 and the fixing hole in sequence and is accommodated in the locking hole, so as to realize the sealed connection between the accommodating shell 31 and the shell 331, and realize the sealing between the locking piece 35 and the fixing hole. Preferably, a sealing structure is further arranged between the accommodating shell 31 and the shell 331 to realize the waterproof between the accommodating shell 31 and the shell 331. Of course, in other embodiments, the accommodating shell 31 and the shell 331 can be embeddedly connected and sealed and waterproofed by sealing glue, which is not limited here.

[0071] In summary, the base station 100 of the present application realizes the separation of liquid and solid in sewage by setting a heating device in the sewage tank 101 to vaporize the sewage in the sewage tank 101; realizes the convenient cleaning of solid waste in the sewage tank 101 by setting a stirring device 3 in the sewage tank 101 to crush the solid waste in the sewage tank 101; realizes the crushing of solid waste in the sewage tank 101 by setting a stirring piece 36 on the transmission structure 33; realizes the waterproofing between the rotating shaft 332 and the shell 331 by setting a sealing piece 336 between the shell 331 and the rotating shaft 332 of the transmission structure 33; realizes the rotating connection of the motor 32 and the transmission structure 33 by setting a protrusion 323 on the rotating shaft head 322 and a notch 334 matching the protrusion 323 on the rotating shaft 332; realizes that the stirring piece 36 can accumulate force to crush the bonded waste and improves the crushing force of the stirring device 3 by setting the protrusion 323 to be slidable in the notch 334; realizes the detection of the height of sewage in the sewage tank 101 and the detection of the height of bubbles in the sewage tank 101 by setting a first electrode 24, a second electrode 25 and a third electrode 26 on the cover 2; avoids the bubbles in the sewage tank 101 from flowing out by setting a mesh structure 21 on the cover 2; realizes the recycling of sewage by setting a condensing device 105 connected with the sewage tank 101 and the clean water tank; realizes the isolation of steam from the outside air and the replenishment of clean water in the clean water tank by setting an opening 81 and a baffle 8 on the steam channel 104; realizes the balance of air pressure in the sewage tank 101, the cleaning of dust in the sewage tank 101 and the cleaning of the dust box inside the cleaning robot by setting a dust collecting device 102 between the dust collecting tank 103 and the sewage tank 101 and setting a suction device connected with the dust collecting tank 103; realizes the temporary storage of sewage to adjust the height of sewage in the sewage tank 101 by setting a transfer tank 107.

[0072] The above examples are only used to illustrate the technical solutions of the present application and not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A stirring device applied to a sewage tank for breaking dry garbage in the sewage tank, characterized in that: The stirring device comprises a motor and a transmission structure matched with the motor, the motor comprises an output shaft and a rotating shaft head fixedly connected with the output shaft, the transmission structure comprises a rotating shaft and a notch opened on the rotating shaft, the rotating shaft head partially extends into the notch, so as to drive the rotating shaft to rotate synchronously under the driving of the output shaft, and an end of the rotating shaft away from the motor is provided with a stirring piece for breaking dry garbage in the sewage tank and forming dust when the rotating shaft rotates. A protrusion is arranged at the bottom of the rotating shaft head, the size of the notch is greater than the size of the protrusion in the rotating direction of the output shaft, and the protrusion extends into the notch and can slide in the notch.

2. The stirring device of claim 1, wherein: The stirring piece comprises a first blade and a second blade, the first blade and the second blade are stacked in the axial direction of the rotating shaft, and the first blade and the second blade are arranged to intersect each other.

3. The stirring device of claim 2, wherein: The length of the first blade is greater than the length of the second blade.

4. The stirring device of claim 1, wherein: When the protrusion abuts against the inner wall surface of the notch, the rotating shaft head drives the rotating shaft to rotate synchronously, when the rotating shaft is stopped due to resistance, the protrusion can slide reversely and then slide forward under the control of the motor, so as to break the resistance and enable the rotating shaft to rotate normally.

5. The stirring device of claim 4, wherein: The protrusion extends from the bottom of the rotating shaft head to the side away from the output shaft, and the notch is recessed downward from the top of the rotating shaft.

6. The stirring device of claim 1, wherein: The transmission structure further comprises a shell covering the outside of the rotating shaft, a through hole is arranged at the bottom of the shell for the rotating shaft to pass through, a sealing piece is accommodated in the shell, the sealing piece is arranged on the outside of the rotating shaft and abuts against the inner side wall of the shell, so as to realize the sealing between the rotating shaft and the shell.

7. The stirring device of claim 6, wherein: The sealing piece is arranged at the top of the through hole and seals the gap between the rotating shaft and the through hole, and the sealing piece is a three-lip skeleton oil seal made of fluororubber products.

8. The stirring device of claim 6, wherein: The transmission structure further comprises a bearing arranged on the outside of the rotating shaft, the bearing is arranged between the rotating shaft and the shell and abuts against the inner side wall of the shell.

9. A sump tank characterized by: The stirring device comprises a box body, a cover body covering the box body, and a stirring device as claimed in any one of claims 1-8 connected with the cover body and capable of being accommodated in the box body, the stirring device is capable of rotating in the box body to break dry garbage in the box body.

10. A base station, characterized by: The stirring device comprises a sewage tank as claimed in claim 9, a dust collecting tank connected with the sewage tank, and a suction device connected with the dust collecting tank, after the stirring device breaks dry garbage in the box body into dust, the suction device generates negative pressure in the dust collecting tank to transmit the dust in the sewage tank to the dust collecting tank for storage.

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