Water tank with draining function and cleaning machine applying water tank

Abstract

The invention relates to a water tank with a draining function and a cleaning machine applying the water tank, the water tank comprises a tank body with a water falling opening and a draining device, the draining device is detachably hung on the upper portion of the tank body in the horizontal direction, and the draining device comprises a draining table used for placing objects to be drained, a flow guide channel and a centrifugal fan; the draining table is arranged at the top of the draining device in the horizontal direction, and draining holes penetrating vertically are formed in the draining table. The flow guide channel is vertically arranged below the draining table, the upper port of the flow guide channel is in fluid communication with each draining hole of the draining table, and the lower port of the flow guide channel is in fluid communication with the air inlet of the centrifugal fan and is in fluid communication with the water falling opening of the tank body. In the draining state, the centrifugal fan works, negative pressure is formed in the flow guide channel, and water is driven by pressure difference to be rapidly drained from an object to be drained, rapidly falls down through the draining holes and is drained into the water falling opening. Therefore, the draining effect can be improved, the draining efficiency of the to-be-drained object is improved, and efficient draining is achieved.

Description

Technical Field

[0001] This invention relates to the field of sinks, and more particularly to a sink with a draining function and a cleaning machine using the sink. Background Technology

[0002] A draining platform is typically installed on the sink so that washed dishes and food can be placed on it to drain. For example, Chinese utility model patent ZL202422664162.7 (authorization announcement number CN223433903U) discloses a sink including: a sink body, a draining platform, and a shelf; the draining platform is slidably disposed within the sink body along a first horizontal direction and is detachably connected to the sink body, and the dimension of the draining platform along the first horizontal direction is smaller than the dimension of the sink body along the first horizontal direction; the shelf is slidably disposed within the sink body along a second horizontal direction and is detachably connected to the sink body, and the dimension of the shelf along the second horizontal direction is smaller than the dimension of the sink body along the second horizontal direction; wherein, one of the first horizontal direction and the second horizontal direction is the longitudinal direction of the sink body, and the other is the transverse direction of the sink body. Another example is Chinese utility model patent ZL202321200484.5 (authorization announcement number CN219671542U), etc.

[0003] However, existing draining tables rely solely on the gravity of the water to drain, resulting in low drainage efficiency. Furthermore, water stains easily remain on the draining tables after use, causing them to become dirty or moldy. Summary of the Invention

[0004] The first technical problem to be solved by the present invention is to provide a water tank with high drainage efficiency and good drainage effect compared with the prior art.

[0005] The second technical problem to be solved by the present invention is to provide a cleaning machine that uses the above-mentioned water tank, in contrast to the prior art.

[0006] The third technical problem to be solved by the present invention is to provide a cleaning machine that uses the above-mentioned water tank and can achieve cleaning of the draining device, in contrast to the prior art.

[0007] The technical solution adopted to solve the above-mentioned first technical problem is: a water tank with a draining function, including a tank body with a drain outlet and a draining device, characterized in that the draining device is detachably suspended on the upper part of the tank body in the horizontal direction, and includes a draining platform for placing the object to be drained, a flow guiding channel and a centrifugal fan.

[0008] The draining platform is horizontally positioned on top of the draining device, and vertically penetrating draining holes are arranged on it.

[0009] The flow channel is vertically arranged below the drain platform. Its upper port is fluidly connected to each drain hole of the drain platform, while its lower port is fluidly connected to the air inlet of the centrifugal fan and to the drain outlet of the tank.

[0010] Furthermore, the top of the draining platform has a surface for placing items to be drained, and the height of this surface is higher than each drain hole.

[0011] The draining platform is equipped with an air chamber, which has an air outlet that allows air to flow horizontally.

[0012] Furthermore, during the draining process, the items to be drained are placed on the shelf, and the airflow from the air outlet can flow between the items and the drain holes. Under the negative pressure of the centrifugal fan, the items to be drained (e.g., vegetable leaves) may block the drain holes and affect drainage. To avoid this, the present invention sets the shelf higher than each drain hole and uses the air outlet of the air chamber to blow the items to be drained to prevent the drain holes from being blocked.

[0013] Furthermore, the placement surface includes a first placement surface, and support plates are spaced apart on the top surface of the draining platform. Each support plate extends vertically and is staggered from each drain hole, with the top edge of each support plate forming the first placement surface. By setting up each support plate, on the one hand, it can achieve stable support for the items to be drained and make the first placement surface higher than each drain hole; on the other hand, the gaps between the support plates and their staggered arrangement with respect to each drain hole allow the drained water to flow into each drain hole more quickly.

[0014] Furthermore, each of the aforementioned support plates is a square plate, and there are four support plates corresponding to each drain hole. The four support plates are located on each side of the corresponding drain hole and are arranged in a square array at circumferential intervals. This not only helps the support plates to support the object to be drained more stably, but also helps the water drained from the object to drip better into each drain hole.

[0015] Furthermore, the edges of each drain hole extend vertically upwards in the circumferential direction to form a retaining ring, and the height of each retaining ring is lower than that of the corresponding support plate. By setting retaining rings on each drain hole, the objects to be drained are further prevented from blocking the drain holes.

[0016] Furthermore, the storage surface also includes a second storage surface. The drain platform is square in shape, with a cross-shaped protrusion in the center of its top surface. The top surface of this protrusion forms the second storage surface. This protrusion extends vertically, its length matching the length of the top surface of the drain platform, and its width matching the width of the top surface of the drain platform, dividing the top surface of the drain platform into four drainage areas. Drainage holes are respectively arranged in each drainage area.

[0017] The interior of the boss is hollow, forming the air chamber. Each inner sidewall of the boss is provided with an air outlet spaced apart along its length. The opening height of each air outlet is higher than each baffle ring and not lower than each support plate.

[0018] Furthermore, in each drain hole adjacent to the protrusion, no support plate is provided on the side adjacent to the protrusion, and the retaining ring of each drain hole is recessed on the side adjacent to the protrusion to form a drainage notch flush with the top surface of the drain platform where the drain hole is located. First, the cooperation between the first and second placement surfaces allows the object to be drained to be placed more stably on the drain platform. Second, the protrusion allows the air from the air chamber to be blown evenly to each drain area. Moreover, when air is discharged from each air outlet, the downward airflow speed at the drain hole adjacent to each air outlet is greater than that at other drain holes, thereby driving the water dripping in each drain area to converge at the drain hole adjacent to each air outlet, and then flow downward through the corresponding drain hole via the drainage notch, thereby further improving the draining efficiency.

[0019] Furthermore, the bottom of the draining platform is covered with a vertically extending guide hood, which defines the flow channel, and a circular opening is formed at the lower end of the guide hood to constitute the lower port of the flow channel.

[0020] The centrifugal fan includes an impeller housed in the water tank. The impeller is shaped like an inverted frustum, vertically arranged and rotatable about its own axis. It includes a connecting ring at the top and a base at the bottom. The connecting ring is circular and rotatably fitted onto the lower end of the guide shroud, while the base is circular and extends horizontally.

[0021] Furthermore, the impeller also includes elongated blades, each evenly spaced along the circumference of the impeller and inclined inwards from top to bottom relative to the impeller. The upper ends of each blade are connected to a connecting ring, while the lower ends are connected to a base. This facilitates the construction of a flow channel and allows for the stable installation of the centrifugal fan impeller. The rotation of the impeller creates negative pressure within this flow channel, causing the drained water to fall along the channel and flow into the tank through the gaps between adjacent blades on the impeller. Therefore, this design not only effectively ensures the centrifugal fan's role in promoting drainage but also allows the drained water to smoothly fall into the tank, simplifying the internal air and water pathways of the drainage device.

[0022] Furthermore, the centrifugal fan also includes a motor and a magnetic coupling assembly arranged along the impeller axis. The motor is mounted on the outer bottom surface of the tank, and the axial magnetic coupling assembly is used to transmit the power output by the motor to the impeller. This assembly includes a first magnetic coupling block and a second magnetic coupling block. The first magnetic coupling block is fixed to the motor's output shaft and located outside the tank, while the second magnetic coupling block is disposed on the base. In this way, the centrifugal fan motor is positioned outside the water tank, and the motor drives the impeller to rotate through a contactless transmission method (magnetic coupling assembly), avoiding the risk of water ingress and damage to the motor, and extending the service life of the centrifugal fan.

[0023] Furthermore, it also includes an air pump, whose inlet is connected to an external air source, and whose outlet is connected to the air inlet of the air chamber. The air pump drives external air into the air chamber, and at the same time, it allows the air inside the air chamber to be blown out from the air outlet at a certain pressure, thereby better preventing the drainage holes from being blocked.

[0024] Furthermore, the air pump is a diaphragm air pump, which is positioned below the draining platform and above the impeller. It also includes a transmission mechanism for transmitting the power output from the centrifugal fan's motor to the eccentric wheel of the diaphragm air pump. This design allows for a compact internal structure of the draining device, and the shared motor between the air pump and the centrifugal fan contributes to a simpler internal structure while also reducing production costs.

[0025] Furthermore, the transmission mechanism includes a first transmission shaft and a second transmission shaft. The first transmission shaft extends along the axis of the impeller, with its lower end fixed to the base and its upper end mounted with a bearing. The second transmission shaft also extends along the axis of the impeller, with its lower end connected to the bearing via a mounting cover and its upper end mounted with a mounting seat. The rotation of the eccentric wheel is mounted on this mounting seat. In this way, the motor drives the impeller to rotate via the magnetic coupling assembly, which in turn drives the first transmission shaft to rotate. The first transmission shaft, through the mounting cover and the bearing, drives the second transmission shaft to rotate, ultimately driving the eccentric wheel to rotate.

[0026] The technical solution adopted to further solve the second technical problem mentioned above is: a cleaning machine, characterized in that it uses a water tank with a draining function as described above.

[0027] The technical solution adopted to further solve the third technical problem mentioned above is as follows: a cleaning machine, characterized in that it uses a water tank with a draining function as described above, including a cleaning inner tank, which has an exhaust port, and further includes an air inlet connector, a first control valve, and a second control valve. The air inlet connector includes a first air inlet interface, a second air inlet interface, and an air outlet interface for fluid communication with the air inlet interface. The first air inlet interface is used to communicate with the outside atmosphere, and the first control valve is used to control the opening and closing of the first air inlet interface. The second air inlet interface is used to fluidly communicate with the exhaust port, and the second control valve is used to control the opening and closing of the second air inlet interface.

[0028] In drying mode, the first control valve controls the first air inlet to close, while the second control valve controls the second air inlet to open.

[0029] Compared with existing technologies, the advantages of this invention are as follows: A draining device is provided on the tank body, comprising a draining platform, a guide channel, and a centrifugal fan. In the draining state, the object to be drained is placed on the draining platform. The centrifugal fan operates, creating negative pressure in the guide channel. Driven by this pressure difference, water is rapidly drained from the object and falls quickly from the draining platform through the drain holes into the guide channel, and then discharged into the drain outlet of the tank. Therefore, this invention can improve the draining effect, increase the draining efficiency of the object to be drained, and achieve highly efficient draining. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the water tank structure in an embodiment of the present invention;

[0031] Figure 2 for Figure 1 A structural diagram from another direction;

[0032] Figure 3 for Figure 1 A structural diagram in another direction;

[0033] Figure 4 for Figure 3 A cross-sectional view along the AA direction;

[0034] Figure 5 for Figure 3 A cross-sectional view along the BB direction;

[0035] Figure 6 This is a schematic diagram of the drainage device in an embodiment of the present invention;

[0036] Figure 7 for Figure 6 A structural diagram from another direction;

[0037] Figure 8 for Figure 7Enlarged view of section C;

[0038] Figure 9 This is a cross-sectional view of the draining device in an embodiment of the present invention;

[0039] Figure 10 for Figure 9 Enlarged view of section D;

[0040] Figure 11 This is a partial structural diagram of the draining device in an embodiment of the present invention;

[0041] Figure 12 for Figure 11 Enlarged view of section E in the middle;

[0042] Figure 13 This is a schematic diagram of the baffle structure in an embodiment of the present invention;

[0043] Figure 14 This is a schematic diagram of the cleaning machine in an embodiment of the present invention. Detailed Implementation

[0044] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0045] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this invention can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0046] like Figure 14 As shown, a cleaning machine (e.g., a dishwasher) includes a water tank and a cleaning inner tub 8 arranged side by side, wherein the water tank has a draining function. Further, as... Figures 1-13As shown, the water tank includes a tank body 1 with a drain outlet 10, and a draining device 2. The draining device 2 is detachably suspended horizontally above the tank body 1 and includes a draining platform 22 for placing items to be drained, a flow channel 50, and a centrifugal fan 4. The draining platform 22 is horizontally positioned at the top of the draining device 2 and has vertically penetrating drain holes 220. The flow channel 50 is vertically positioned below the draining platform 22. Its upper end is in fluid communication with each drain hole 220 of the draining platform 22, and its lower end is in fluid communication with the air inlet 231 of the centrifugal fan 4 and with the drain outlet 10 of the tank body 1.

[0047] As can be seen from the above, the tank 1 of this invention is equipped with a draining device 2, which includes a draining platform 22, a guide channel 50, and a centrifugal fan 4. In the draining state, the object to be drained is placed on the draining platform 22. The centrifugal fan 4 operates, creating negative pressure in the guide channel 50. Driven by the pressure difference, water is quickly drained from the object and falls rapidly from the draining platform 22 into the guide channel 50 through the drain holes 220, before being discharged into the drain outlet 10 of the water tank. Therefore, this invention can improve the draining effect, increase the draining efficiency of the object to be drained, and achieve efficient draining.

[0048] In this embodiment, the aforementioned draining platform 22 is suspended on the left side of the water tank along the front-to-back direction by a bracket 21 (e.g., Figure 1 As shown in the diagram, specifically, the bracket 21 includes a square top frame 211, with vertically extending connecting rods 212 fixed at each of the four corners of the top frame 211. Each connecting rod 212 is fixed to the aforementioned draining platform 22. Furthermore, blocks 2111 are installed at each of the four corners of the top frame 211, with a first magnet 213 fixed to the bottom of each block 2111. A second magnet 214 is fixed to the bottom surface of the groove edge of the trough 1, and the second magnet 214 corresponds one-to-one with the first magnet 213. When the draining device 2 is installed in place on the trough 1, the top frame 211 rests horizontally on the groove edge of the trough 1, and each first magnet 213 forms a magnetic attraction with its corresponding second magnet 214. This ensures that the draining device 2 is securely installed on the trough 1, and the sufficient magnetic attraction between the bracket 21 and the trough 1 prevents the draining device 2 from falling off the trough 1 during use. Furthermore, the magnetic attraction positioning of each first magnet 213 and the corresponding second magnet 214 helps the first magnetic coupling block 43 and the second magnetic coupling block 44 to be correctly aligned vertically, so as to ensure that the motor 42 of the centrifugal fan 4 drives the impeller 41.

[0049] Preferably, the top of the draining platform 22 has a surface for placing items to be drained, the height of which is higher than each drain hole 220. The draining platform 22 is provided with an air chamber 230, which has an air outlet 232 capable of horizontal airflow. Furthermore, during the draining process, the items to be drained are placed on the surface, and the airflow from the air outlet 232 can flow between the items and the drain holes 220. Under the negative pressure of the centrifugal fan 4, the items to be drained (e.g., vegetable leaves) may block the drain holes 220, affecting drainage. To avoid this, the present invention provides a surface higher than each drain hole 220 and utilizes the airflow from the air chamber 230 to move the items to be drained, thus preventing the drain holes 220 from being blocked.

[0050] Specifically, such as Figure 7 and Figure 8 As shown, the aforementioned placement surface includes a first placement surface 2201. Support plates 222 are spaced apart on the top surface of the aforementioned drain platform 22. Each support plate 222 extends vertically and is staggered from each drain hole 220. The top edge of each support plate 222 constitutes the aforementioned first placement surface 2201. By setting each support plate 222, on the one hand, stable support for the items to be drained can be achieved, and the first placement surface 2201 is higher than each drain hole 220. On the other hand, the gaps between each support plate 222 and the staggered arrangement with each drain hole 220 allow the drained water to flow into each drain hole 220 more quickly. Specifically, in this embodiment, as shown... Figure 8 As shown, each of the aforementioned support plates 222 is a square plate, and there are four support plates 222 corresponding to each drain hole 220. The four support plates 222 are located on each side of the corresponding drain hole 220 and are arranged in a square array at circumferential intervals. This not only helps the support plates 222 to support the object to be drained more stably, but also helps the water drained from the object to drip better into the drain holes 220. Preferably, the edge of each drain hole 220 extends vertically upward in the circumferential direction to form a retaining ring 223, and the height of each retaining ring 223 is lower than that of the corresponding support plate 222. By providing retaining rings 223 on each drain hole 220, it is further possible to prevent the object to be drained from blocking the drain holes 220.

[0051] Furthermore, such as Figure 7As shown, the aforementioned shelf also includes a second shelf 2202. The drain platform 22 is square in shape, with a cross-shaped protrusion 23 protruding from the center of its top surface. The top surface of the protrusion 23 forms the second shelf 2202. The protrusion 23 extends vertically, its length matching the length of the top surface of the drain platform 22, and its width matching the width of the top surface of the drain platform 22, dividing the top surface of the drain platform 22 into four draining areas 221. The drain holes 220 are respectively arranged on each draining area 221. The interior of the protrusion 23 is hollow, forming the air chamber 230. The air outlets 232 are spaced apart along their length on the inner sidewalls of the protrusion 23. The opening height of each air outlet 232 is higher than each of the baffle rings 223 and not lower than each of the support plates 222. Furthermore, in each of the drain holes 220 adjacent to the boss 23, none of the aforementioned support plates 222 are provided on the side adjacent to the boss 23, and the retaining rings 223 of each drain hole 220 are recessed on the side adjacent to the boss 23 to form a drainage notch 2231 flush with the top surface of the drain platform 22 where the drain hole 220 is located. Figure 8 and Figure 10 As shown. First, the cooperation between the first placement surface 2201 and the second placement surface 2202 allows the object to be drained to be placed more stably on the draining platform 22. Second, the protrusion 23 allows the air outlet of the air chamber 230 to be evenly blown to each draining area 221. Furthermore, when air is discharged from each air outlet 232, the downward flow speed of the airflow at the drain hole 220 adjacent to each air outlet 232 is greater than that at other drain holes 220. This drives the water dripping into each draining area 221 to flow to the drain hole 220 adjacent to each air outlet 232, and then flows downward through each drainage notch 2231 from the corresponding drain hole 220, thereby further improving the draining efficiency.

[0052] In this embodiment, preferably, the height of the second placement surface 2202 is inclined downward from its center (e.g., Figure 6 As shown), the water drained from the items placed on the second shelf 2202 flows downwards along the second shelf 2202 into each draining area 221, and then flows out of the draining platform 22 through each drain hole 220. Further, as... Figure 9As shown, the aforementioned air chamber 230 includes a centrally located first air chamber 2301, which has a square cross-section. An air inlet 231 is provided on its bottom wall, and first diversion ports 233 are centrally located on its side walls. Each first diversion port 233 corresponds to one of the four arms of the boss 23. Furthermore, each arm of the boss 23 has a diversion channel 2302 along its length, and second diversion ports 234 are spaced apart along the length on both sides of each diversion channel 2302. The inner cavities of the four arms of the boss 23 are divided into two parts by the corresponding diversion channels 2302, and each part is separated by a diversion baffle 235 along its width, corresponding to each air outlet 232. This arrangement ensures that the gas entering the air chamber 230 is evenly blown out from each air outlet 232.

[0053] Furthermore, in this embodiment, each inner surface of the aforementioned protrusion 23 is covered with a long strip-shaped baffle 3. The length of each baffle 3 matches the inner surface of the protrusion 23 and is used for each air outlet 232 on that side. Figure 8 and Figure 10 Furthermore, each baffle 3 is made of soft rubber, and each baffle 3 has a horizontally extending mounting post 31 protruding from its upper end along its length. The inner sidewalls of each boss 23 have mounting holes 236 corresponding to the mounting posts 31 of the corresponding baffle 3. Each mounting post 31 is engaged in its corresponding mounting hole 236 to install the baffle 3. When gas is introduced into the air chamber 230, the pressure difference between the inside and outside of the air chamber 230 causes the lower ends of each baffle 3 to fold outwards along its length, thus opening each air outlet 232. When no gas is introduced into the air chamber 230, each baffle 3 closes its respective air outlet 232, preventing dirt from entering the air chamber 230.

[0054] Furthermore, such as Figure 4As shown, the bottom of the aforementioned drain platform 22 is covered with a vertically extending guide shroud 5, which defines the aforementioned guide channel 50. The lower end of the guide shroud 5 has a circular opening, forming the lower port of the guide channel 50. The aforementioned centrifugal fan 4 includes an impeller 41 housed in the aforementioned water tank. The impeller 41 is shaped like an inverted frustum, vertically positioned and capable of rotating around its own axis. It includes a connecting ring 411 at the top and a base 412 at the bottom. The connecting ring 411 is circular and rotatably fitted onto the lower end of the guide shroud 5, while the base 412 is circular and extends horizontally. Furthermore, the impeller 41 also includes elongated blades 413, each blade 413 being evenly spaced along the circumference of the impeller 41 and inclined inwards from top to bottom relative to the impeller 41. The upper ends of each blade are connected to the connecting ring 411, and the lower ends are connected to the base 412. This facilitates the construction of the guide channel 50, while also allowing for the stable installation of the impeller 41 of the centrifugal fan 4. The rotation of the impeller 41 creates negative pressure within the guide channel 50, causing the drained water to fall along the guide channel 50 and flow into the tank 1 through the gaps between adjacent blades 413 on the impeller 41. Therefore, this design not only effectively ensures the centrifugal fan 4's role in promoting drainage but also allows the drained water to smoothly fall into the tank 1, simplifying the internal air and water passages of the drainage device 2.

[0055] Furthermore, such as Figure 2 , Figure 3 as well as Figure 4 As shown, the centrifugal fan 4 also includes a motor 42 and a magnetic coupling assembly arranged axially along the impeller 41. The motor 42 is mounted on the outer bottom surface of the tank 1 via a motor mount 421. The axial magnetic coupling assembly is used to transmit the power output by the motor 42 to the impeller 41 and includes a first magnetic coupling block 43 and a second magnetic coupling block 44. The first magnetic coupling block 43 is fixed on the output shaft of the motor 42 and located outside the tank 1, while the second magnetic coupling block 44 is disposed on the base 412. In this way, the motor 42 of the centrifugal fan 4 is located outside the water tank, and the motor 42 drives the impeller 41 to rotate through a contactless transmission method (magnetic coupling assembly), avoiding the risk of water ingress and damage to the motor 42 and extending the service life of the centrifugal fan 4.

[0056] Furthermore, the draining device 2 in this embodiment also includes an air pump 6. The air inlet of the air pump 6 is connected to an external air source, while the air outlet is connected to the air inlet 231 of the air chamber 230. The air pump 6 drives external gas into the air chamber 230, and simultaneously allows the gas inside the air chamber 230 to be blown out from the air outlet 232 at a certain pressure, thereby better preventing the drain holes 220 from being blocked. Specifically, the air pump 6 is a diaphragm air pump 6, which is located below the draining platform 22 and above the impeller 41. It also includes a transmission mechanism 7 for transmitting the power output from the motor 42 of the centrifugal fan 4 to the eccentric wheel 61 of the diaphragm air pump 6. This makes the internal structure of the draining device 2 more compact, and the air pump 6 shares the motor 42 with the centrifugal fan 4, which helps to simplify the internal structure of the draining device 2 and also reduces production costs. In this embodiment, a vertically extending air inlet pipe 62 (e.g., ...) is connected to the air inlet of the air pump 6. Figure 4 As shown), the air inlet pipe 62 passes through the above-mentioned boss 23 and is exposed on the second placement surface 2202, while the air outlet is connected to a vertically extending air outlet pipe 63, the upper end of which is connected to the air inlet 231 of the above-mentioned air chamber 230.

[0057] Furthermore, such as Figure 4 As shown, the transmission mechanism 7 includes a first transmission shaft 71 and a second transmission shaft 72. The first transmission shaft 71 extends along the axis of the impeller 41, with its lower end fixed to the base 412 and its upper end mounted with a bearing 73. The second transmission shaft 72 also extends along the axis of the impeller 41, with its lower end connected to the bearing 73 via a mounting cover 74, and its upper end mounted with a mounting seat 75. The eccentric wheel 61 is mounted on this mounting seat 75. Thus, the motor 42 drives the impeller 41 to rotate via a magnetic coupling assembly, which in turn drives the first transmission shaft 71 to rotate. The first transmission shaft 71, through the mounting cover 74 and the bearing 73, drives the second transmission shaft 72 to rotate, ultimately driving the eccentric wheel 61 to rotate.

[0058] Furthermore, the aforementioned cleaning inner tank 8 has an exhaust port (not shown), and also includes an air inlet connector (not shown, a conventional three-way connector can be used), a first control valve (not shown, a conventional electronic control valve can be used), and a second control valve (not shown, the same electronic control valve as the first control valve can be used). The air inlet connector includes a first air inlet interface, a second air inlet interface, and an air outlet interface for fluid communication with the aforementioned air inlet 231. The first air inlet interface is used to communicate with the outside atmosphere, and the first control valve controls the opening and closing of the first air inlet interface. The second air inlet interface is used to fluidly communicate with the aforementioned exhaust port, and the second control valve controls the opening and closing of the second air inlet interface. In the drying mode after the cleaning process, the first control valve controls the first air inlet interface to close, and the second control valve controls the second air inlet interface to open. Thus, in the undrained state, the high-temperature steam discharged from the cleaning inner tank 8 in the drying mode can be used to perform high-temperature cleaning and disinfection of the draining device 2. Furthermore, the discharged gas is relatively dry in the later stages of drying, thus enabling further high-temperature drying of the draining device 2 and achieving self-cleaning of the draining device 2. Furthermore, when the items to be drained are rags, the high-temperature steam discharged from the inner drum 8 during the drying mode can sterilize the rags at high temperatures, preventing bacteria from growing on them. Simultaneously, the first control valve opens the first air inlet, while the second control valve closes the second air inlet, allowing the air chamber to use outside air as its air source to assist in the draining of the items.

[0059] In another embodiment, the household appliance in this invention can be controlled by a voice module, which is equipped with a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller controls the household appliance to perform corresponding operations, thereby realizing intelligent control of the household appliance and improving the user experience.

[0060] The term "fluid connectivity" as used in this invention refers to the spatial relationship between two components or parts (hereinafter referred to as the first part and the second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow from the first part along a flow path and / or be transported to the second part. This can be a direct connection between the first part and the second part, or an indirect connection between the first part and the second part through at least one third party. This third party can be a fluid channel such as a pipe, channel, conduit, guide, hole, or groove, or a chamber that allows fluid to flow through, or a combination of the above.

Claims

1. A water tank with a draining function, comprising a tank body (1) having a drain outlet (10) and a draining device (2), characterized in that, The draining device (2) is detachably suspended in the upper part of the tank (1) in the horizontal direction, and includes a draining platform (22) for placing the items to be drained, a flow channel (50) and a centrifugal fan (4). The draining platform (22) is arranged horizontally on top of the draining device (2), and vertically penetrating draining holes (220) are arranged on it. The guide channel (50) is vertically arranged below the drain platform (22). Its upper port is fluidly connected to each drain hole (220) of the drain platform (22), while its lower port is fluidly connected to the air inlet (231) of the centrifugal fan (4) and fluidly connected to the drain outlet (10) of the tank (1).

2. The water tank with drainage function as described in claim 1, characterized in that, The top of the draining platform (22) has a surface for placing items to be drained, and the height of this surface is higher than each drain hole (220). The draining platform (22) is provided with an air chamber (230), which has an air outlet (232) that allows air to flow horizontally. Furthermore, in the draining state, the object to be drained is placed on the surface, and the airflow blown out by the air outlet (232) can flow between the object to be drained and the drain hole (220).

3. The water tank with drainage function as described in claim 2, characterized in that, The placement surface includes a first placement surface (2201). Support plates (222) are arranged at intervals on the top surface of the draining platform (22). Each support plate (222) extends vertically and is staggered from each drain hole (220). The top edge of each support plate (222) constitutes the first placement surface (2201).

4. The water tank with a draining function as described in claim 3, characterized in that, Each of the support plates (222) is a square plate, and there are four support plates (222) corresponding to each drain hole (220). The four support plates (222) are located on each side of the corresponding drain hole (220) and are arranged in a square array at intervals along the circumference.

5. The water tank with a draining function as described in claim 4, characterized in that, The edge of each drain hole (220) extends vertically upward in the circumferential direction to form a retaining ring (223), and the height of each retaining ring (223) is lower than that of the corresponding support plate (222).

6. The water tank with a draining function as described in claim 5, characterized in that, The storage surface also includes a second storage surface (2202). The drain platform (22) is square in shape, with a cross-shaped protrusion (23) protruding from the center of its top surface. The top surface of the protrusion (23) constitutes the second storage surface (2202). The protrusion (23) extends vertically, with its length matching the length of the top surface of the drain platform (22) and its width matching the width of the top surface of the drain platform (22). This divides the top surface of the drain platform (22) into four drainage areas (221), and the drainage holes (220) are respectively arranged on each drainage area (221). The interior of the boss (23) is hollow, forming the air chamber (230). Each inner sidewall of the boss (23) is provided with an air outlet (232) spaced apart along its length. The opening height of each air outlet (232) is higher than each of the baffle rings (223) and not lower than each of the support plates (222). Furthermore, in each of the drain holes (220) adjacent to the boss (23), the support plate (222) is not provided on the side adjacent to the boss (23), and the retaining ring (223) of each drain hole (220) is recessed on the side adjacent to the boss (23) to form a drainage notch (2231) that is flush with the top surface of the drain platform (22) where the drain hole (220) is located.

7. The water tank with a draining function as described in any one of claims 2 to 6, characterized in that, The bottom of the drain platform (22) is covered with a vertically extending flow guide (5), which defines the flow guide channel (50). The lower end of the flow guide (5) has a circular opening to form the lower port of the flow guide channel (50). The centrifugal fan (4) includes an impeller (41) housed in the water tank. The impeller (41) is shaped like an inverted frustum, vertically positioned and rotatable about its own axis. It includes a connecting ring (411) at the top and a base (412) at the bottom. The connecting ring (411) is circular and rotatably fitted onto the lower end of the guide shroud (5), while the base (412) is circular and extends horizontally. Furthermore, the impeller (41) also includes long strip blades (413), each blade (413) is evenly spaced along the circumference of the impeller (41) and is inclined inward from top to bottom relative to the impeller (41), with the upper end connected to the connecting ring (411) and the lower end connected to the base (412).

8. The water tank with a draining function as described in claim 7, characterized in that, The centrifugal fan (4) also includes a motor (42) and a magnetic coupling assembly arranged axially along the impeller (41). The motor (42) is mounted on the outer bottom surface of the tank (1). The axial magnetic coupling assembly is used to transmit the power output by the motor (42) to the impeller (41) and includes a first magnetic coupling block (43) and a second magnetic coupling block (44). The first magnetic coupling block (43) is fixed on the output shaft of the motor (42) and located outside the tank (1), while the second magnetic coupling block (44) is arranged on the base (412).

9. The water tank with a draining function as described in claim 7, characterized in that, It also includes an air pump (6), whose air inlet is connected to an external air source, and whose air outlet is connected to the air inlet (231) of the air chamber (230).

10. The water tank with a draining function as described in claim 9, characterized in that, The air pump (6) is a diaphragm air pump (6), which is located below the drain platform (22) and above the impeller (41). It also includes a transmission mechanism (7) for transmitting the power output by the motor (42) of the centrifugal fan (4) to the eccentric wheel (61) of the diaphragm air pump (6).

11. The water tank with a draining function as described in claim 10, characterized in that, The transmission mechanism (7) includes a first transmission shaft (71) and a second transmission shaft (72). The first transmission shaft (71) extends along the axial direction of the impeller (41), with its lower end fixed to the base (412) and its upper end mounted with a bearing (73). The second transmission shaft (72) also extends along the axial direction of the impeller (41), with its lower end covered by a mounting cover (74) and connected to the bearing (73), and its upper end mounted with a mounting seat (75). The rotation of the eccentric wheel (61) is mounted on the mounting seat (75).

12. A cleaning machine, characterized in that, The application includes a water tank with a draining function as described in any one of claims 1 to 11.

13. A cleaning machine, characterized in that, The application includes a water tank with a draining function as described in any one of claims 2 to 11, comprising a cleaning inner tank (8) having an exhaust port, and further comprising an air inlet connector, a first control valve, and a second control valve. The air inlet connector includes a first air inlet interface, a second air inlet interface, and an air outlet interface for fluid communication with the air inlet (231). The first air inlet interface is used to communicate with the outside atmosphere, and the first control valve is used to control the opening and closing of the first air inlet interface. The second air inlet interface is used to fluidly communicate with the exhaust port, and the second control valve is used to control the opening and closing of the second air inlet interface. In the drying mode of the cleaning machine, the first control valve controls the first air inlet to close, while the second control valve controls the second air inlet to open.

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