Water removal device and bathroom cabinet

Abstract

The water removal device comprises a water removal assembly, the water removal assembly comprises a main drainage pipe body, an overflow sleeve, a pressing assembly, a floating assembly and a conductive connecting assembly, the overflow sleeve is arranged in the main drainage pipe body, a first overflow channel is formed between the outer wall of the overflow sleeve and the inner wall of the main drainage pipe body, and a second overflow channel is formed between the outer wall of the overflow sleeve and the inner wall of the main drainage pipe body. A second overflow channel is formed in the overflow sleeve, a water sealing gasket is arranged on the outer wall of the overflow sleeve in the circumferential direction of the overflow sleeve, the floating assembly comprises a lifting piece, the conductive connecting assembly comprises a movable rod, a first spring and a conductive elastic piece, and the conductive elastic piece can be electrically connected with an electrical element used for controlling opening and closing of an external faucet. The lifting part moves upwards under buoyancy and can push the movable rod to abut against the two conductive elastic pieces, so that the two conductive elastic pieces are conducted. According to the utility model, the water removing device is used for controlling the faucet to open and close water, so that the faucet can be automatically closed even if the faucet is not closed when water overflows, and precious water resources can be saved.

Description

Technical Field

[0001] This utility model relates to the field of bathroom drainage device technology, and in particular to a water removal device and bathroom cabinet. Background Technology

[0002] Existing drainers generally come in three types: flap, push-button, and countertop wired control. The overflow hole of these drainers only has the function of draining excess clean water. If the faucet is not turned off, water will be wasted by draining through the overflow hole. Utility Model Content

[0003] The present invention aims to at least partially solve one of the aforementioned technical problems in the related art. To this end, the present invention proposes a water removal device.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] This utility model also proposes a bathroom cabinet with the above-mentioned water removal device.

[0006] A water-draining device according to a first aspect of the present invention includes a water-draining assembly. The water-draining assembly includes a main drain pipe, an overflow sleeve, a pressing assembly, a floating assembly, and a conductive connection assembly. The main drain pipe is vertically arranged, with its lower end serving as a water outlet. The side wall of the main drain pipe has a first water inlet for connecting to an external basin requiring drainage and an mounting port for installing the conductive connection assembly. The mounting port is located above the first water inlet. The overflow sleeve is disposed within the main drain pipe. A first overflow channel is formed between the outer wall of the overflow sleeve and the inner wall of the main drain pipe. A second overflow channel is formed within the overflow sleeve. The first water inlet communicates with the first overflow channel, and the second overflow channel communicates with the water outlet. A sealing gasket is provided circumferentially on the outer wall of the overflow sleeve. The pressing assembly is used to drive the overflow sleeve in a first position. The overflow sleeve moves up and down between the first and second positions. When the overflow sleeve is in the first position, the sealing gasket blocks the connection between the first inlet port and the outlet port outside the overflow sleeve, while the first overflow channel is connected to the second overflow channel. When the overflow sleeve is in the second position, the first inlet port and the outlet port are connected outside the overflow sleeve. The floating component includes a lifting member, which can move upward due to the buoyancy of the liquid in the first overflow channel. The conductive connection component includes a movable rod, a first spring for resetting the movable rod, and two mutually spaced conductive springs. One end of the movable rod is inserted into the drain pipe body, and the other end is aligned with the two conductive springs. The two conductive springs can be electrically connected to an electrical component for controlling the opening and closing of an external faucet. The upward movement of the lifting member can push the movable rod to abut against the two conductive springs, so that the two conductive springs are connected.

[0007] The dewatering device according to the embodiments of this utility model has at least the following beneficial effects:

[0008] 1. When the drain device of this utility model is closed (i.e., the overflow sleeve is in the first position), the first overflow channel and the external basin to be drained form a communicating vessel structure. Water flows into the main drain pipe from the first inlet port. Since the water sealing gasket has blocked the outlet end, the water flows into the first overflow channel. The water level in the first overflow channel rises with the water level in the basin. When the water level reaches the top of the overflow sleeve, it means that the water in the basin has reached the maximum water level. The water overflows from the first overflow channel to the second overflow channel and flows to the outlet end through the second overflow channel, realizing overflow drainage. At the same time, the lifting component moves upward due to the buoyancy of the water in the first overflow channel, pushing the movable rod to abut against the two conductive springs to form a connection, triggering the corresponding electrical components to control the external faucet to close the water outlet, preventing clean water from overflowing and causing waste. When the drain device is opened to drain water (i.e., the overflow sleeve is in the second position), the water level in the first overflow channel drops, the lifting component loses buoyancy and moves downward to reset, the movable rod loses the thrust of the lifting component and resets under the action of the first spring, the other end of the movable rod disengages from the conductive spring, thereby breaking the connection, and the external tap resumes normal water supply.

[0009] 2. This utility model utilizes a drain device to control the faucet's on / off function, so that even if the faucet is not turned off when water overflows, it will automatically shut off, saving precious water resources. Even if the control mechanism fails, it still maintains normal overflow function, preventing water from becoming trapped.

[0010] According to some embodiments of the present invention, the inner wall of the main drain pipe is provided with a water-sealing baffle along its circumference, and the water-sealing baffle is located below the first water inlet port. When the overflow sleeve is in the first position, the water-sealing gasket is in sealing contact with the water-sealing baffle.

[0011] According to some embodiments of the present invention, the pressing assembly includes a connecting rod, a pressing decorative head, and a spring. The connecting rod passes through the overflow sleeve and is connected to the overflow sleeve via spokes. The upper end of the connecting rod is connected to the pressing decorative head, and the lower end is connected to the spring. The spring is connected to the main drain pipe body via spokes.

[0012] According to some embodiments of the present invention, the floating assembly further includes a second spring for resetting the lifting member. The second spring is located above the lifting member. When the lifting member pushes the movable rod, the second spring can provide a downward thrust to the lifting member, and the buoyancy force on the lifting member is greater than the thrust.

[0013] According to some embodiments of the present invention, the floating component further includes a plurality of floats located within the first overflow channel. The plurality of floats are distributed circumferentially along the main drain pipe. The lifting component is generally ring-shaped, and its outer peripheral wall is provided with a first flange. The first flange moves upward to abut against and push the movable rod. The lower part of the lifting component extends into the first overflow channel. The floats move upward under the action of buoyancy to abut against and push the lifting component.

[0014] According to some embodiments of the present invention, a baffle is provided in the first overflow channel to prevent the float from falling out of the first overflow channel. The baffle is connected to the main drain pipe or the overflow sleeve. The baffle is provided with a water passage hole, the diameter of which is smaller than the diameter of the float.

[0015] According to some embodiments of the present invention, the conductive connection assembly further includes a housing, which is mounted on the mounting port. The housing has a receiving cavity, and the movable rod and the first spring are located in the receiving cavity. The inner peripheral wall of the receiving cavity is provided with a limiting step, and the outer peripheral wall of the movable rod is provided with a second flange. The first spring is sleeved on the movable rod, and one end of the first spring abuts against the second flange and the other end abuts against the limiting step. One end of the conductive spring is located in the receiving cavity, and the other end protrudes from the housing.

[0016] According to some embodiments of this utility model, a water inlet control component is also included. The water inlet control component includes a valve housing, a torque elastic element, an upper ceramic plate, a lower ceramic plate, a connecting shaft, and a motor. The upper end of the valve housing is provided with a water outlet port for connection to an external faucet inlet pipe. The side wall of the valve housing is provided with a second water inlet port, which communicates with the inner cavity of the valve housing. The upper ceramic plate, lower ceramic plate, and torque elastic element are disposed in the inner cavity. The connecting shaft is rotatably inserted through the bottom wall of the valve housing. The upper end of the connecting shaft is fixedly connected to the lower ceramic plate, and the lower end is fixedly connected to the output shaft of the motor. The torque elastic element is located below the lower ceramic plate. In this configuration, the fixed end of the torsion elastic element is fixedly connected to the inner wall of the valve housing, and the movable end of the torsion elastic element is fixedly connected to the connecting shaft. The lower ceramic plate has a first through hole that communicates with the inner cavity. The upper ceramic plate is fixedly installed above the lower ceramic plate and has a second through hole that communicates with the water outlet port. When the two conductive springs are not connected, the first through hole and the second through hole are aligned to connect the second water inlet port and the water outlet port. When the two conductive springs are connected, the first through hole and the second through hole are misaligned to block the connection between the second water inlet port and the water outlet port.

[0017] According to some embodiments of the present invention, the lower end face of the upper ceramic sheet is provided with a limiting ring groove for limiting the rotation angle of the lower ceramic sheet, and the upper end face of the lower ceramic sheet is provided with a protrusion. The protrusion is inserted into the limiting ring groove, and the protrusion can move along the limiting ring groove and abut against the stop surfaces at both ends of the limiting ring groove.

[0018] According to a second aspect of the present invention, a bathroom cabinet includes a washbasin and a drain device. The countertop of the washbasin has an installation hole, and a pipe connector is provided on the installation hole. The pipe connector is connected to the main drain pipe and has a pressing channel for pressing the pressing component by hand. The bottom of the side wall of the washbasin has a drain outlet, which is connected to the first water inlet port.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is an overall structural diagram of the present invention;

[0022] Figure 2 This is an overall structural diagram of the dewatering component of this utility model;

[0023] Figure 3 This is an overall structural diagram of the conductive connection component of this utility model;

[0024] Figure 4 This is an exploded view of the water inlet control component of this utility model;

[0025] Figure 5 This is a cross-sectional view of the water inlet control component of this utility model;

[0026] Figure 6 This is a structural diagram of the lower end face of the upper ceramic sheet of this utility model;

[0027] Figure 7 This is a structural diagram of the upper end face of the lower ceramic sheet of this utility model;

[0028] Figure 8 This is a structural diagram of the lower end face of the ceramic sheet of this utility model.

[0029] Reference numerals: Main drain pipe 100, First inlet port 120, Mounting port 130, First overflow channel 140, Water-sealing baffle 150, Overflow sleeve 200, Second overflow channel 210, Water-sealing washer 220, Baffle plate 230, Water passage hole 231, Pressing assembly 300, Connecting rod 310, Pressing decorative head 320, Bouncer 330, Lifting component 410, First flange 411, Second spring 420, Float ball 430, Movable rod 510, Second flange 511, First spring 520, Conductive spring 530 540, outer shell, 541, water inlet control component, 600, valve shell, 610, water outlet port, 611, second water inlet port, 612, torsion elastic element, 620, upper ceramic plate, 630, second through hole, 631, limiting ring groove, 632, stop surface, 633, lower ceramic plate, 640, first through hole, 641, protrusion, 642, anti-rotation hole, 643, connecting shaft, 650, motor, 660, fixing base, 670, waterproof box, 680, wash basin body, 700, drain outlet, 710, pipe connector, 800, faucet inlet pipe, 900. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0031] Reference Figure 1-3A drainage device includes a drainage assembly comprising a main drain pipe 100, an overflow sleeve 200, a pressing assembly 300, a floating assembly, and a conductive connection assembly. The main drain pipe 100 is vertically arranged, with its lower end serving as the water outlet. The side wall of the main drain pipe 100 is provided with a first water inlet port 120 for connecting to an external basin requiring drainage and an installation port 130 for installing the conductive connection assembly. The installation port 130 is located above the first water inlet port 120. The diameter of the overflow sleeve 200 is smaller than that of the main drain pipe 100. The overflow sleeve 200 is installed inside the main drain pipe 100 with a diameter of 00. A first overflow channel 140 is formed between the outer wall of the overflow sleeve 200 and the inner wall of the main drain pipe 100. A second overflow channel 210 is formed inside the overflow sleeve 200. The first inlet port 120 is connected to the first overflow channel 140, and the second overflow channel 210 is connected to the outlet. A water-sealing gasket 220 is provided on the outer wall of the overflow sleeve 200 along its circumference. The pressing component 300 is used to drive the overflow sleeve 200 between the first position and the second position. When the overflow sleeve 200 is in the first position, the sealing gasket 220 blocks the connection between the first inlet port 120 and the outlet port outside the overflow sleeve 200. Simultaneously, the first overflow channel 140 connects with the second overflow channel 210. When the overflow sleeve 200 is in the second position, the first inlet port 120 and the outlet port connect outside the overflow sleeve 200. The floating assembly includes a lifting member 410, which is made of insulating material. The lifting member 410 can move upwards due to the buoyancy of the liquid in the first overflow channel 140. The conductive connection assembly includes a movable rod 510, a first spring 520 for resetting the movable rod 510, and two spaced-apart conductive springs 530. The movable rod 510 is made of conductive material. One end of the movable rod 510 is inserted into the drain pipe body 100, and the other end is aligned with the two conductive springs 530. The two conductive springs 530 can be electrically connected to electrical components used to control the opening and closing of external faucets. When the lifting member 410 moves upward, it can push the movable rod 510 against the two conductive springs 530, thereby making the two conductive springs 530 conductive. Furthermore, the end of the movable rod 510 that is inserted into the drain pipe body 100 is semi-circular, which reduces the contact area with the lifting member 410, reduces friction, and prevents jamming when the lifting member 410 pushes the movable rod 510.

[0032] Working principle: When the drain device is closed (i.e., the overflow sleeve 200 is in the first position), the first overflow channel 140 and the washbasin body 700 form a communicating vessel structure. Water flows from the first inlet port 120 into the main drain pipe body 100. Since the sealing gasket 220 has blocked the outlet end, the water flows into the first overflow channel 140. The water level in the first overflow channel 140 rises as the water level in the washbasin body 700 rises. When the water level reaches the top of the overflow sleeve 200, it means that the water level in the washbasin body 700 has reached the maximum water level. The water overflows from the first overflow channel 140 to the second overflow channel 210 and flows to the outlet end through the second overflow channel 210, realizing overflow drainage. At the same time, the lifting component 410 moves upward due to the buoyancy of the water in the first overflow channel 140, pushing the movable rod 510 to abut against the two conductive springs 530 to form a connection, triggering the corresponding electrical components to control the external faucet to shut off the water flow, preventing clean water from overflowing and causing waste. When the drain device is opened to drain water (i.e., the overflow sleeve 200 is in the second position), the water level in the first overflow channel 140 drops, the lifting member 410 loses buoyancy and moves downward to reset, the movable rod 510 loses the thrust of the lifting member 410 and resets under the action of the first spring 520, the other end of the movable rod 510 disengages from the conductive spring 530, thereby disconnecting the conduction, and the external tap resumes normal water supply.

[0033] In some embodiments of this utility model, the inner wall of the drain pipe 100 is provided with a water-sealing baffle 150 along its circumference, and the water-sealing baffle 150 is located below the first water inlet port 120. When the overflow sleeve 200 is in the first position, the water-sealing gasket 220 is in sealing contact with the water-sealing baffle 150. Specifically, the water-sealing gasket 220 is located at the lower end of the overflow sleeve 200. When the overflow sleeve 200 is pressed downward by an external force, it causes the water-sealing gasket 220 to come into contact with the water-sealing baffle 150, cutting off the connection between the first water inlet port 120 and the water outlet of the overflow sleeve 200. At this time, the washbasin body 700 is in a water-filled state.

[0034] In some embodiments of this utility model, the pressing assembly 300 includes a connecting rod 310, a pressing decorative head 320, and a spring 330. The connecting rod 310 passes through the overflow sleeve 200 and is connected to the overflow sleeve 200 via spokes. The upper end of the connecting rod 310 is connected to the pressing decorative head 320, and the lower end is connected to the spring 330. The spring 330 is connected to the main drain pipe body 100 via spokes. The spring 330 is a common existing technology in bathroom drainers. It generally includes a spring housing, a spring core installed in the spring housing, and a spring for lifting the spring core. The spring housing is provided with a stroke groove to guide and control the lifting and lowering of the spring core, and the spring core is provided with a guide block that moves along the stroke groove. The detailed structural principle of its operation will not be described in detail here. The spring device 330 is fixed relative to the main drain pipe 100. Pressing the decorative head 320 causes the connecting rod 310 to move downward. The connecting rod 310 drives the overflow sleeve 200 to move downward. The overflow sleeve 200 reaches the first position, at which time the washbasin body 700 is in a water-filled state. When draining, the spring device 330 drives the connecting rod 310 to move upward. The connecting rod 310 drives the overflow sleeve 200 to move upward. The overflow sleeve 200 reaches the second position to realize drainage.

[0035] In some embodiments of this utility model, the floating assembly further includes a second spring 420 for resetting the lifting member 410. The second spring 420 is located above the lifting member 410. When the lifting member 410 pushes the movable rod 510, the second spring 420 provides a downward thrust to the lifting member 410, and the buoyancy force on the lifting member 410 is greater than the thrust. When draining water, the liquid level in the first overflow channel 140 drops, and the lifting member 410 loses its buoyancy. At this time, the lifting member 410 is only pushed downward by the spring, disengaging from the movable rod 510 and resetting the movable rod 510. The second spring 420 can prevent the lifting member 410 from being unable to move downward or reset due to jamming. It should be noted that the second spring 420 is not an essential component and can be set as needed according to the material of the lifting member 410. In some embodiments, the lifting member 410 can be a plastic with a certain weight, resetting downward by its own gravity; or the lifting member 410 can be made of rubber, which is lightweight and prone to jamming, in which case the second spring 420 is needed to assist in resetting.

[0036] In some embodiments of this utility model, the floating assembly further includes a plurality of floats 430 located within the first overflow channel 140. The floats 430 are distributed circumferentially along the main drain pipe 100. The lifting member 410 is generally ring-shaped, with a first flange 411 on its outer peripheral wall. The first flange 411 moves upward to abut against and push the movable rod 510. The lower part of the lifting member 410 extends into the first overflow channel 140. Under buoyancy, the floats 430 move upward to abut against and push the lifting member 410. Further, the first flange 411 has an inclined surface, which contacts the movable rod 510. The inclined surface ensures that the first flange 411 provides a horizontal thrust to the movable rod 510. When water flows into the first overflow channel 140, the floats 430 rise with the water level, contacting the lower end of the lifting member 410 and pushing it upward.

[0037] In some embodiments of this utility model, a baffle 230 is provided inside the first overflow channel 140 to prevent the float 430 from falling out of the first overflow channel 140. The baffle 230 is connected to the main drain pipe 100 or the overflow sleeve 200. The baffle 230 is provided with a water passage hole 231, the diameter of which is smaller than the diameter of the float 430. When the first overflow channel 140 is empty, the baffle 230 can block the float 430. When water enters the first overflow channel 140, water can pass through the water passage hole 231.

[0038] In some embodiments of this utility model, the conductive connection assembly further includes a housing 540, which is mounted on the mounting port 130. The housing 540 has a receiving cavity, in which the movable rod 510 and the first spring 520 are located. The inner peripheral wall of the receiving cavity is provided with a limiting step 541, and the outer peripheral wall of the movable rod 510 is provided with a second flange 511. The first spring 520 is sleeved on the movable rod 510, with one end of the first spring 520 abutting against the second flange 511 and the other end abutting against the limiting step 541. One end of the conductive spring piece 530 is located inside the receiving cavity, and the other end protrudes from the housing 540. The conductive spring piece 530 is located at the end of the receiving cavity. A sealing ring is provided between the movable rod 510 and the side wall of the receiving cavity to prevent water from contacting the conductive spring piece 530 and causing malfunction.

[0039] In some embodiments of this utility model, reference is made to Figure 4-8It also includes a water inlet control assembly 600, which includes a valve housing 610, a torque elastic element 620, an upper ceramic plate 630, a lower ceramic plate 640, a connecting shaft 650, and a motor 660. The upper end of the valve housing 610 is provided with a water outlet port 611 for connecting to an external faucet water inlet pipe 900. The side wall of the valve housing 610 is provided with a second water inlet port 612, which communicates with the inner cavity of the valve housing 610. The upper ceramic plate 630, the lower ceramic plate 640, and the torque elastic element 620 are disposed in the inner cavity. The connecting shaft 650 is rotatably inserted through the bottom wall of the valve housing 610. The upper end of the connecting shaft 650 is fixedly connected to the lower ceramic plate 640, and the lower end is fixedly connected to the output shaft of the motor 660. The torque elastic element 620 is located below the lower ceramic plate 640. The fixed end of the torsion elastic element 620 is fixedly connected to the inner wall of the valve housing 610, and the movable end of the torsion elastic element 620 is fixedly connected to the connecting shaft 650. A first through hole 641 is provided on the lower ceramic plate 640, communicating with the inner cavity. An upper ceramic plate 630 is fixedly installed above the lower ceramic plate 640, and a second through hole 631 is provided on the upper ceramic plate 630, communicating with the water outlet port 611. When the two conductive springs 530 are not conductive, the first through hole 641 and the second through hole 631 are aligned to connect the second water inlet port 612 and the water outlet port 611. When the two conductive springs 530 are conductive, the first through hole 641 and the second through hole 631 are misaligned to block the connection between the second water inlet port 612 and the water outlet port 611. The torsion elastic element 620 is preferably a torsion spring, and the motor 660 is electrically connected to the conductive spring 530. Working principle: When the conductive spring 530 is turned on, the motor 660 starts, driving the lower ceramic plate 640 to rotate, causing the first through hole 641 and the second through hole 631 to misalign, preventing water from entering the faucet and avoiding water waste. After drainage, the conductive spring 530 is de-energized, the motor 660 is turned off, and the lower ceramic plate 640 is reset under the action of the torsion elastic element 620, aligning the first through hole 641 and the second through hole 631, thus opening the water passage and allowing the faucet to dispense water normally. Furthermore, the lower end face of the lower ceramic plate 640 is provided with an anti-rotation hole 643, which can be hexagonal, square, or milled flat, etc. The upper end of the connecting shaft 650 is provided with a connector adapted to the structure of the anti-rotation hole 643. The connecting shaft 650 is inserted into the anti-rotation hole 643 to ensure that the connecting shaft 650 can rotate the lower ceramic plate 640 without slipping under the drive of the motor 660. Furthermore, the connecting shaft 650 and the motor 660 are connected by a connecting rod. Furthermore, a mounting bracket 670 is provided, and the motor 660 and related control components are installed together in a waterproof box 680, which is fixed to the wall by the mounting bracket 670.

[0040] In some embodiments of this utility model, such as Figure 6-7As shown, the lower end face of the upper ceramic piece 630 is provided with a limiting annular groove 632 for limiting the rotation angle of the lower ceramic piece 640, and the upper end face of the lower ceramic piece 640 is provided with a protrusion 642. The protrusion 642 is inserted into the limiting annular groove 632 and can move along the limiting annular groove 632 and abut against the stop surfaces 633 at both ends of the limiting annular groove 632. After the lower ceramic piece 640 rotates a certain angle, its protrusion 642 is blocked by the stop surfaces 633, indicating that it has rotated to the correct position, and the first through hole 641 and the second through hole 631 are aligned or misaligned.

[0041] A type of bathroom vanity, such as Figure 1 As shown, the washbasin 700 includes a basin body 700 and the aforementioned drain device. The countertop of the basin body 700 has mounting holes with a pipe connector 800 connected to the main drain pipe 100. The pipe connector 800 has a pressing channel for the pressing component 300 to be pressed by hand. A drain outlet 710 is located at the bottom of the side wall of the basin body 700, and the drain outlet 710 is connected to the first water inlet port 120. Furthermore, the drain outlet 710 is located at the bottom of the side wall of the basin body 700 against the wall, and the drain device is hidden behind the basin body 700, greatly increasing the storage space under the cabinet.

[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A water removal device, characterized in that, The system includes a drainage assembly comprising a main drain pipe (100), an overflow sleeve (200), a push-button assembly (300), a floating assembly, and a conductive connection assembly. The main drain pipe (100) is vertically oriented, with its lower end serving as the outlet. The side wall of the main drain pipe (100) is provided with a first inlet port (120) for connecting to an external basin requiring drainage and an installation port (130) for installing the conductive connection assembly. The installation port (130) is located above the first inlet port (120). The overflow sleeve (200) is located on the main drain pipe (100). Within the overflow sleeve (200), a first overflow channel (140) is formed between the outer wall of the overflow sleeve (200) and the inner wall of the main drain pipe (100). A second overflow channel (210) is formed within the overflow sleeve (200). The first inlet port (120) is connected to the first overflow channel (140), and the second overflow channel (210) is connected to the outlet. A sealing washer (220) is provided circumferentially on the outer wall of the overflow sleeve (200). The pressing component (300) is used to drive the overflow sleeve (200) to move up and down between the first position and the second position. When the overflow sleeve (200) is in the first position, the sealing gasket (220) blocks the connection between the first inlet port (120) and the outlet port outside the overflow sleeve (200), while the first overflow channel (140) is connected to the second overflow channel (210). When the overflow sleeve (200) is in the second position, the first inlet port (120) and the outlet port are connected outside the overflow sleeve (200). The floating component includes a lifting member (410), which can move upward due to the buoyancy of the liquid in the first overflow channel (140). The conductive connection assembly includes a movable rod (510), a first spring (520) for resetting the movable rod (510), and two spaced-apart conductive springs (530). One end of the movable rod (510) is inserted into the drain pipe body (100), and the other end is aligned with the two conductive springs (530). The two conductive springs (530) can be electrically connected to an electrical component for controlling the opening and closing of an external faucet. The upward movement of the lifting member (410) can push the movable rod (510) to abut against the two conductive springs (530) so that the two conductive springs (530) are connected.

2. The dewatering device according to claim 1, characterized in that, The inner wall of the main drain pipe (100) is provided with a water-sealing baffle (150) along its circumference, and the water-sealing baffle (150) is located below the first water inlet port (120). When the overflow sleeve (200) is in the first position, the water-sealing gasket (220) and the water-sealing baffle (150) are sealed and abutted.

3. The dewatering device according to claim 1, characterized in that, The pressing assembly (300) includes a connecting rod (310), a pressing decorative head (320), and a spring (330). The connecting rod (310) passes through the overflow sleeve (200) and is connected to the overflow sleeve (200) via spokes. The upper end of the connecting rod (310) is connected to the pressing decorative head (320), and the lower end is connected to the spring (330). The spring (330) is connected to the main drain pipe body (100) via spokes.

4. The dewatering device according to claim 1, characterized in that, The floating assembly also includes a second spring (420) for resetting the lifting member (410). The second spring (420) is located above the lifting member (410). When the lifting member (410) pushes the movable rod (510), the second spring (420) can provide a downward thrust to the lifting member (410), and the buoyancy force on the lifting member (410) is greater than the thrust.

5. The dewatering device according to claim 1, characterized in that, The floating assembly also includes several floats (430), which are located in the first overflow channel (140). The floats (430) are distributed circumferentially along the main drain pipe (100). The lifting member (410) is generally ring-shaped, and its outer peripheral wall is provided with a first flange (411). The first flange (411) moves upward to abut against and push the movable rod (510). The lower part of the lifting member (410) extends into the first overflow channel (140). The floats (430) move upward under the action of buoyancy to abut against and push the lifting member (410).

6. The dewatering device according to claim 5, characterized in that, The first overflow channel (140) is provided with a baffle (230) to prevent the float (430) from falling out of the first overflow channel (140). The baffle (230) is connected to the main drain pipe (100) or the overflow sleeve (200). The baffle (230) is provided with a water passage hole (231). The diameter of the water passage hole (231) is smaller than the diameter of the float (430).

7. The dewatering device according to claim 1, characterized in that, The conductive connection assembly further includes a housing (540) which is mounted on the mounting port (130). The housing (540) has a receiving cavity inside. The movable rod (510) and the first spring (520) are located in the receiving cavity. The inner peripheral wall of the receiving cavity is provided with a limiting step (541). The outer peripheral wall of the movable rod (510) is provided with a second flange (511). The first spring (520) is sleeved on the movable rod (510), and one end of the first spring (520) abuts against the second flange (511) and the other end abuts against the limiting step (541). One end of the conductive spring (530) is located in the receiving cavity, and the other end protrudes from the housing (540).

8. The dewatering device according to claim 1, characterized in that, It also includes a water inlet control assembly (600), which includes a valve housing (610), a torsion elastic element (620), an upper ceramic plate (630), a lower ceramic plate (640), a connecting shaft (650), and a motor (660). The upper end of the valve housing (610) is provided with a water outlet port (611) for connecting to an external faucet water inlet pipe (900). The side wall of the valve housing (610) is provided with a second water inlet port (612). 12) The upper ceramic plate (630), lower ceramic plate (640), and torsional elastic element (620) are disposed in the inner cavity of the valve housing (610), communicating with the inner cavity of the valve housing (610). The connecting shaft (650) is rotatably inserted through the bottom wall of the valve housing (610). The upper end of the connecting shaft (650) is fixedly connected to the lower ceramic plate (640), and the lower end is fixedly connected to the output shaft of the motor (660). The torsional elastic element (620) is located below the lower ceramic plate (640). The fixed end of the torsion elastic element (620) is fixedly connected to the inner wall of the valve housing (610), and the movable end of the torsion elastic element (620) is fixedly connected to the connecting shaft (650). The lower ceramic plate (640) has a first through hole (641) communicating with the inner cavity. The upper ceramic plate (630) is fixedly installed above the lower ceramic plate (640), and the upper ceramic plate (630) has a second through hole (631). The hole (631) is connected to the water outlet port (611). When the two conductive springs (530) are not connected, the first through hole (641) and the second through hole (631) are aligned to connect the second water inlet port (612) and the water outlet port (611). When the two conductive springs (530) are connected, the first through hole (641) and the second through hole (631) are misaligned to block the connection between the second water inlet port (612) and the water outlet port (611).

9. The dewatering device according to claim 8, characterized in that, The lower end face of the upper ceramic plate (630) is provided with a limiting annular groove (632) for limiting the rotation angle of the lower ceramic plate (640). The upper end face of the lower ceramic plate (640) is provided with a protrusion (642). The protrusion (642) is inserted into the limiting annular groove (632). The protrusion (642) can move along the limiting annular groove (632) and abut against the stop surfaces (633) at both ends of the limiting annular groove (632).

10. A bathroom cabinet, characterized in that, The basin includes a washbasin body (700) and a drain device as described in any one of claims 1-9. The washbasin body (700) has a mounting hole on its countertop, and a pipe connector (800) is provided on the mounting hole. The pipe connector (800) is connected to the main drain pipe (100). The pipe connector (800) is provided with a pressing channel for a person to press the pressing component (300). The bottom of the side wall of the washbasin body (700) is provided with a drain outlet (710), and the drain outlet (710) is connected to the first water inlet port (120).

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