Water removal device and bathroom cabinet

Abstract

The invention discloses a water removing device and a bathroom cabinet, the water removing device comprises a water removing assembly, the water removing 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, and a first 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. 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] The invention relates to the technical field of bathroom drainage devices, in particular to a drainage device and a bathroom cabinet. Background Art

[0002] Existing drainers are generally of three types: flip-plate, push-button and countertop wire-controlled. The overflow holes of these drainers only have the function of discharging excess clean water. If the faucet is not turned off, the water will be discharged from the overflow hole in vain, causing a waste of water resources. Summary of the invention

[0003] The present invention aims to solve at least one of the above-mentioned technical problems in the related art to a certain extent. To this end, the present invention provides a dewatering device.

[0004] To achieve the above object, the technical solution of the present invention is as follows:

[0005] The present invention also provides a bathroom cabinet having the above-mentioned drain device.

[0006] According to the first aspect of the present invention, the dewatering device of the embodiment includes a dewatering component, which includes a sewer main body, an overflow sleeve, a pressing component, a floating component and a conductive connection component. The sewer main body is vertically arranged, and its lower end is a water outlet. The side wall of the sewer main body is provided with a first water inlet port for docking with an external basin body to be drained and an installation port for installing the conductive connection component, and the installation port is located above the first water inlet port. The overflow sleeve is arranged in the sewer main body, and a first overflow channel is formed between the outer wall of the overflow sleeve and the inner wall of the sewer main body, and a second overflow channel is formed in the overflow sleeve. The first water inlet port is connected to the first overflow channel, and the second overflow channel is connected to the water outlet. The outer wall of the overflow sleeve is provided with a water sealing gasket along its circumference, and the pressing component is used to drive the overflow sleeve in the first position and a second position. When the overflow sleeve is in the first position, the water-sealing gasket blocks the communication between the first water inlet port and the water outlet end outside the overflow sleeve, and at the same time, the first overflow channel is connected to the second overflow channel. When the overflow sleeve is in the second position, the first water inlet port and the water outlet end are connected outside the overflow sleeve. The floating assembly includes a lifting member, which can move upward due to the buoyancy of the liquid in the first overflow channel. The conductive connection assembly includes a movable rod, a first spring for resetting the movable rod, and two conductive spring sheets separated from each other. One end of the movable rod penetrates into the sewer main body, and the other end is aligned with the two conductive spring sheets. The two conductive spring sheets can be electrically connected to the electrical components used to control the opening and closing of the external faucet. The upward movement of the lifting member can push the movable rod to abut against the two conductive spring sheets to make the two conductive spring sheets conductive.

[0007] The dewatering device according to the embodiment of the present invention has at least the following beneficial effects:

[0008] 1. When the drainage device of the present invention 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, and water flows into the sewer main body from the first water inlet port. Since the water sealing gasket has blocked the water outlet, 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 stored 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 water outlet through the second overflow channel to achieve overflow drainage. At the same time, the lifting member moves upward due to the buoyancy of the water in the first overflow channel, pushing the movable rod to abut against the two conductive spring sheets to form conduction, triggering the corresponding electrical components to control the external faucet to close the water outlet, thereby preventing clean water from overflowing and causing waste. When the drain device is opened for drainage (i.e. the overflow sleeve is in the second position), the water level in the first overflow channel drops, the lifting member loses its buoyancy and moves downward to reset, the movable rod loses the thrust of the lifting member and resets under the action of the first spring, the other end of the movable rod disengages from the conductive spring sheet, thereby disconnecting the conduction, and the external faucet resumes normal water supply.

[0009] 2. The present invention uses a drain device to control the on / off water of the faucet, so that when the water overflows, even if the faucet is not turned off, the faucet will automatically close, which can save precious water resources. When the control part fails, it can also have a normal overflow function without causing the problem of water not being able to drain.

[0010] According to some embodiments of the present invention, the inner wall of the sewer main body is provided with a circle of water-sealing ribs along its circumference, and the water-sealing ribs are 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 ribs.

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

[0012] According to some embodiments of the present invention, the floating assembly also includes a second spring for resetting the lifting member, and 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 of the lifting member is greater than the thrust.

[0013] According to some embodiments of the present invention, the floating assembly further comprises a plurality of floats, which are located in the first overflow channel and are distributed circumferentially along the sewer main body. The lifting member is in the shape of a ring as a whole, and a first flange is provided on its outer peripheral wall. The first flange moves upward to abut against and push the movable rod, and the lower part of the lifting member extends into the first overflow channel. The float moves upward under the action of buoyancy to abut against and push the lifting member.

[0014] According to some embodiments of the present invention, a partition is provided in the first overflow channel for preventing the float from escaping from the first overflow channel, the partition is connected to the sewer main body or the overflow sleeve, and a water hole is provided on the partition, and the aperture of the water hole is smaller than the diameter of the float.

[0015] According to some embodiments of the present invention, the conductive connection assembly also includes a shell, which is installed on the installation port, and the shell has a accommodating cavity. The movable rod and the first spring are located in the accommodating cavity, and the inner peripheral wall of the accommodating 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 is against the second flange, and the other end is against the limiting step. One end of the conductive spring is located in the accommodating cavity, and the other end passes through the shell.

[0016] According to some embodiments of the present invention, a water inlet control component is further included, which includes a valve housing, a torsion elastic member, 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 connecting to an external faucet water inlet pipe, and the side wall of the valve housing is provided with a second water inlet port, which is communicated with the inner cavity of the valve housing. The upper ceramic plate, the lower ceramic plate and the torsion elastic member are arranged in the inner cavity. The connecting shaft is rotatably penetrated 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, and the torsion elastic member is located below the lower ceramic plate. , the fixed end of the torsion elastic member is fixedly connected to the inner wall of the valve housing, the movable end of the torsion elastic member is fixedly connected to the connecting shaft, the lower ceramic sheet is provided with a first through hole, the first through hole is communicated with the inner cavity, the upper ceramic sheet is fixedly installed above the lower ceramic sheet, the upper ceramic sheet is provided with a second through hole, the second through hole is communicated with the water outlet port, when the two conductive spring sheets are not conductive, 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 spring sheets are conductive, the first through hole and the second through hole are misaligned to block the communication between the second water inlet port and the water outlet port.

[0017] According to some embodiments of the present invention, the lower end surface 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 surface of the lower ceramic sheet is provided with a protrusion, which is inserted into the limiting ring groove. 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 the second aspect of the present invention, the bathroom cabinet comprises a wash basin body and the drain device, the countertop of the wash basin body is provided with a mounting hole, the mounting hole is provided with a pipe body connector, the pipe body connector is connected to the sewer main body, the pipe body connector is provided with a pressing channel for a person to press the pressing assembly by hand, the side wall bottom of the wash basin body is provided with a drain outlet, and the drain outlet is connected to the first water inlet port.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Fig. 1 is an overall structural diagram of the present invention;

[0022] FIG2 is an overall structural diagram of a dewatering assembly of the present invention;

[0023] FIG3 is an overall structural diagram of a conductive connection assembly of the present invention;

[0024] FIG4 is an exploded view of the water inlet control assembly of the present invention;

[0025] FIG5 is a cross-sectional view of a water inlet control assembly of the present invention;

[0026] FIG6 is a structural diagram of the lower end surface of the upper ceramic sheet of the present invention;

[0027] 7 is a structural diagram of the upper end surface of the lower ceramic sheet of the present invention;

[0028] FIG. 8 is a structural diagram of the lower end surface of the lower ceramic sheet of the present invention.

[0029] Reference numerals: sewer main body 100, first water inlet port 120, mounting port 130, first overflow channel 140, water sealing rib 150, overflow sleeve 200, second overflow channel 210, water sealing gasket 220, partition 230, water hole 231, pressing assembly 300, connecting rod 310, pressing decorative head 320, bouncer 330, lifting member 410, first flange 411, second spring 420, float 430, movable rod 510, second flange 511, first spring 520, conductive spring sheet 530 , outer shell 540, limiting step 541, water inlet control assembly 600, valve shell 610, water outlet port 611, second water inlet port 612, torsion elastic member 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 seat 670, waterproof box 680, wash basin body 700, drain outlet 710, pipe body connector 800, faucet water inlet pipe 900. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] 1-3, a dewatering device includes a dewatering assembly, which includes a water pipe body 100, an overflow sleeve 200, a pressing assembly 300, a floating assembly and a conductive connection assembly. The water pipe body 100 is vertically arranged, and its lower end is a water outlet. The side wall of the water pipe body 100 is provided with a first water inlet port 120 for docking with an external basin to be drained 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 water pipe body 100. The overflow sleeve 200 is arranged in the main body 100, a first overflow channel 140 is formed between the outer wall of the overflow sleeve 200 and the inner wall of the main body 100, a second overflow channel 210 is formed in the overflow sleeve 200, the first water inlet port 120 is connected to the first overflow channel 140, the second overflow channel 210 is connected to the water outlet, the outer wall of the overflow sleeve 200 is provided with a water sealing gasket 220 along its circumference, and the pressing assembly 300 is used to drive the overflow sleeve 200 to the first position and the second position. When the overflow sleeve 200 is in the first position, the water sealing gasket 220 blocks the communication between the first water inlet port 120 and the water outlet end outside the overflow sleeve 200, and 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 water inlet port 120 is connected to the water outlet end outside the overflow sleeve 200. The floating assembly includes a lifting member 410. The lifting member 410 is made of insulating material. The lifting member 410 can be moved upward by 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 conductive springs 530 separated from each other. The movable rod 510 is made of conductive material. One end of the movable rod 510 penetrates into the sewer main body 100, and the other end is aligned with the two conductive springs 530. The two conductive springs 530 can be electrically connected to the electrical components used to control the opening and closing of the 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 conductive. Furthermore, the end of the movable rod 510 that penetrates into the sewer main body 100 is semicircular, which reduces the contact area with the lifting member 410, reduces friction, and avoids 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 wash basin body 700 form a communicating vessel structure, and water flows from the first water inlet port 120 into the sewer main body 100. Since the water sealing gasket 220 has blocked the water outlet, the water flows into the first overflow channel 140. The water level in the first overflow channel 140 rises with the water level in the wash basin body 700. When the water level reaches the top of the overflow sleeve 200, it means that the water stored in the wash basin 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 water outlet through the second overflow channel 210 to achieve overflow drainage. At the same time, the lifting member 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 conduction, triggering the corresponding electrical components to control the external faucet to close the water outlet, thereby preventing clean water from overflowing and causing waste. When the drain device is opened for drainage (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 its 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 faucet resumes normal water supply.

[0033] In some embodiments of the present invention, the inner wall of the sewer main body 100 is provided with a circle of water sealing ribs 150 along its circumference, and the water sealing ribs 150 are 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 ribs 150. Specifically, the water sealing gasket 220 is provided at the lower end of the overflow sleeve 200, and the overflow sleeve 200 is pressed downward by an external force, driving the water sealing gasket 220 to contact the water sealing ribs 150, and cutting off the connection between the first water inlet port 120 outside the overflow sleeve 200 and the water outlet end. At this time, the wash basin body 700 is in a water storage state.

[0034] In some embodiments of the present invention, the pressing assembly 300 includes a connecting rod 310, a pressing decorative head 320 and a popper 330. The connecting rod 310 passes through the overflow sleeve 200 and is connected to the overflow sleeve 200 through 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 popper 330. The popper 330 is connected to the sewer main body 100 through spokes. The popper 330 is a common prior art in bathroom dewatering devices. It generally includes a popper shell, a popper core installed in the popper shell, and a spring for lifting the popper core. The popper shell is provided with a travel groove for guiding and controlling the lifting and lowering of the popper core. The popper core is provided with a guide block moving along the travel groove. The detailed structural principle of its operation is not described here one by one. The bouncer 330 is relatively fixed to the sewer main body 100. Pressing the decorative head 320 causes the connecting rod 310 to move downward, and the connecting rod 310 drives the overflow sleeve 200 to move downward, and the overflow sleeve 200 reaches the first position. At this time, the wash basin body 700 is in a water storage state. When draining, the bouncer 330 drives the connecting rod 310 to move upward, and the connecting rod 310 drives the overflow sleeve 200 to move upward, and the overflow sleeve 200 reaches the second position to achieve drainage.

[0035] In some embodiments of the present invention, 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 can provide a downward thrust for the lifting member 410, and the buoyancy of the lifting member 410 is greater than the thrust. When draining, 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 by the spring and moves downward, and is out of contact with the movable rod 510, so that the movable rod 510 is reset. The second spring 420 can avoid the problem that the lifting member 410 cannot move downward or reset due to jamming. It should be noted that the second spring 420 is not a necessary 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, which can be reset downward by its own gravity, or the lifting member 410 is made of rubber, which is light and easy to jam, and the second spring 420 is needed to help reset.

[0036] In some embodiments of the present invention, the floating assembly further includes a plurality of floating balls 430, which are located in the first overflow channel 140 and are distributed along the circumference of the sewer main body 100. The lifting member 410 is in the shape of a ring as a whole, and a first flange 411 is provided on its outer peripheral wall. The first flange 411 moves upward to abut and push the movable rod 510. The lower part of the lifting member 410 extends into the first overflow channel 140, and the floating ball 430 moves upward under the action of buoyancy to abut and push the lifting member 410. Further, the first flange 411 has an inclined surface, and the first flange 411 contacts the movable rod 510 through the inclined surface, and the inclined surface ensures that the first flange 411 provides horizontal thrust for the movable rod 510. When water flows into the first overflow channel 140, the floating ball 430 will float upward as the water level rises, contact the lower end of the lifting member 410, and push the lifting member 410 to move upward.

[0037] In some embodiments of the present invention, a baffle 230 is provided in the first overflow channel 140 to prevent the float 430 from escaping from the first overflow channel 140. The baffle 230 is connected to the sewer main body 100 or the overflow sleeve 200. A water hole 231 is provided on the baffle 230. The aperture of the water hole 231 is smaller than the diameter of the float 430. When the first overflow channel 140 is flooded, the baffle 230 can block the float 430. When the first overflow channel 140 is flooded, the water can pass through the water hole 231.

[0038] In some embodiments of the present invention, the conductive connection assembly further includes a housing 540, which is mounted on the mounting opening 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, 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 passes through the housing 540. The conductive spring 530 is located at the end of the receiving cavity, and 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 530 and causing a malfunction.

[0039] In some embodiments of the present invention, referring to Figures 4-8, a water inlet control component 600 is also included. The water inlet control component 600 includes a valve housing 610, a torsion elastic member 620, an upper ceramic sheet 630, a lower ceramic sheet 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, and the side wall of the valve housing 610 is provided with a second water inlet port 612, and the second water inlet port 612 is communicated with the inner cavity of the valve housing 610. The upper ceramic sheet 630, the lower ceramic sheet 640 and the torsion elastic member 620 are arranged in the inner cavity. The connecting shaft 650 is rotatably penetrated through the bottom wall of the valve housing 610. The upper end of the connecting shaft 650 is fixedly connected to the lower ceramic sheet 640, and the lower end is fixedly connected to the output shaft of the motor 660. The torsion elastic member 620 is located at the lower ceramic sheet. Below the ceramic sheet 640, the fixed end of the torsion elastic member 620 is fixedly connected to the inner wall of the valve housing 610, and the movable end of the torsion elastic member 620 is fixedly connected to the connecting shaft 650. The lower ceramic sheet 640 is provided with a first through hole 641, which is connected to the inner cavity. The upper ceramic sheet 630 is fixedly installed above the lower ceramic sheet 640, and the upper ceramic sheet 630 is provided with a second through hole 631, which is connected to the water outlet port 611. When the two conductive springs 530 are not conducting, 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 conducting, the first through hole 641 and the second through hole 631 are misaligned to block the communication between the second water inlet port 612 and the water outlet port 611. The torsion elastic member 620 is preferably a torsion spring, and the motor 660 is electrically connected to the conductive spring 530. Working principle: The conductive spring 530 is turned on, the motor 660 is started, and the lower ceramic sheet 640 is driven to rotate, so that the first through hole 641 and the second through hole 631 are misaligned, and the faucet cannot enter water, avoiding water waste. After the water is drained, the conductive spring 530 is disconnected from the power supply, the motor 660 is turned off, and the lower ceramic sheet 640 is reset under the action of the torsion elastic member 620, and the first through hole 641 is aligned with the second through hole 631, so that the water path is connected and the faucet can discharge water normally. Further, the lower end surface of the lower ceramic sheet 640 is provided with an anti-rotation hole 643, which can be a hexagonal, square, round milling flat or other anti-rotation structure. The upper end of the connecting shaft 650 is provided with a joint adapted to the anti-rotation hole 643 structure, and the connecting shaft 650 is inserted into the anti-rotation hole 643 to ensure that the connecting shaft 650 can rotate the lower ceramic sheet 640 without slipping under the drive of the motor 660. Further, the connecting shaft 650 and the motor 660 are connected by a connecting rod. Furthermore, a fixing base 670 is provided, and the motor 660 and related control components are installed together in a waterproof box 680 , and the waterproof box 680 is fixed to the wall through the fixing base 670 .

[0040] In some embodiments of the present invention, as shown in Figs. 6-7, the lower end surface of the upper ceramic sheet 630 is provided with a limiting annular groove 632 for limiting the rotation angle of the lower ceramic sheet 640, and the upper end surface of the lower ceramic sheet 640 is provided with a protrusion 642, which 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. After the lower ceramic sheet 640 rotates a certain angle, its protrusion 642 is blocked by the stop surface 633, indicating that it has rotated to the right position, and the first through hole 641 and the second through hole 631 are aligned or misaligned.

[0041] A bathroom cabinet, as shown in FIG1 , includes a wash basin body 700 and the above-mentioned drain device, a mounting hole is opened on the countertop of the wash basin body 700, a pipe body connector 800 is provided on the mounting hole, the pipe body connector 800 is connected to the sewer main body 100, the pipe body connector 800 is provided with a pressing channel for a person to press a pressing assembly 300, and a drain port 710 is provided at the bottom of the side wall of the wash basin body 700, and the drain port 710 is communicated with the first water inlet port 120. Furthermore, the drain port 710 is provided at the bottom of the side wall of the wash basin body 700 against the wall, and the drain device is hidden behind the wash basin body 700, so that the storage space under the cabinet is greatly improved.

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

Claims

1. A dewatering device, characterized in that: The invention comprises a drainage assembly, wherein the drainage assembly comprises a drain pipe body (100), an overflow sleeve (200), a pressing assembly (300), a floating assembly and a conductive connection assembly. The drain pipe body (100) is arranged vertically, and its lower end is a water outlet. The side wall of the drain pipe body (100) is provided with a first water inlet port (120) for docking with an external basin body to be drained 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 overflow sleeve (200) is arranged on the drain pipe body (1 00), a first overflow channel (140) is formed between the outer wall of the overflow sleeve (200) and the inner wall of the sewer main body (100), a second overflow channel (210) is formed in the overflow sleeve (200), the first water inlet port (120) is in communication with the first overflow channel (140), the second overflow channel (210) is in communication with the water outlet, a water sealing gasket (220) is provided on the outer wall of the overflow sleeve (200) along its circumference, and the pressing assembly (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 water sealing gasket (220) blocks the communication between the first water inlet port (120) and the water outlet end outside the overflow sleeve (200), and at the same time, 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 water inlet port (120) and the water outlet end are connected outside the overflow sleeve (200); the floating assembly includes a lifting member (410), and the lifting member (410) can move upward due to the buoyancy of the liquid in the first overflow channel (140). The conductive connection assembly comprises a movable rod (510), a first spring (520) for resetting the movable rod (510), and two conductive spring sheets (530) separated from each other. One end of the movable rod (510) penetrates into the sewer main body (100), and the other end is aligned with the two conductive spring sheets (530). The two conductive spring sheets (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 spring sheets (530), so that the two conductive spring sheets (530) are conductive.

2. The dewatering device according to claim 1, characterized in that: The inner wall of the sewer main body (100) is provided with a circle of water-sealing ribs (150) along its circumference, and the water-sealing ribs (150) are 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 ribs (150).

3. The dewatering device according to claim 1, characterized in that: The pressing assembly (300) comprises a connecting rod (310), a pressing decorative head (320) and a bouncer (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 bouncer (330); the bouncer (330) is connected to the sewer main 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 for the lifting member (410), and the buoyancy of the lifting member (410) is greater than the thrust.

5. The dewatering device according to claim 1, characterized in that: The floating assembly further comprises a plurality of floating balls (430), the floating balls (430) being located in the first overflow channel (140), and the plurality of floating balls (430) being distributed along the circumference of the sewer main body (100); the lifting member (410) is in the shape of a ring as a whole, and a first flange (411) is provided on its outer peripheral wall, and the first flange (411) can abut against and push the movable rod (510) when it moves upward, and the lower part of the lifting member (410) extends into the first overflow channel (140), and the floating balls (430) can abut against and push the lifting member (410) when it moves upward under the action of buoyancy.

6. The dewatering device according to claim 5, characterized in that: A partition (230) is provided in the first overflow channel (140) for preventing the float (430) from escaping from the first overflow channel (140); the partition (230) is connected to the sewer main body (100) or the overflow sleeve (200); a water hole (231) is provided on the partition (230); and the aperture of the water 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 also includes a shell (540), the shell (540) is installed on the installation port (130), the shell (540) has a receiving cavity, 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) is against the second flange (511), and the other end is against the limiting step (541), one end of the conductive spring sheet (530) is located in the receiving cavity, and the other end passes through the shell (540).

8. The dewatering device according to claim 1, characterized in that: The invention also comprises a water inlet control assembly (600), wherein the water inlet control assembly (600) comprises a valve housing (610), a torsion elastic member (620), an upper ceramic plate (630), a lower ceramic plate (640), a connecting shaft (650) and a motor (660), wherein 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), and the side wall of the valve housing (610) is provided with a second water inlet port (612), wherein the second water inlet port (612) is connected to the water inlet pipe (900) of the external faucet. 12) is communicated with the inner cavity of the valve housing (610), the upper ceramic sheet (630), the lower ceramic sheet (640) and the torsion elastic member (620) are arranged in the inner cavity, the connecting shaft (650) is rotatably penetrated through the bottom wall of the valve housing (610), the upper end of the connecting shaft (650) is fixedly connected to the lower ceramic sheet (640), and the lower end is fixedly connected to the output shaft of the motor (660), and the torsion elastic member (620) is located below the lower ceramic sheet (640), The fixed end of the torsion elastic member (620) is fixedly connected to the inner wall of the valve housing (610), and the movable end of the torsion elastic member (620) is fixedly connected to the connecting shaft (650). The lower ceramic sheet (640) is provided with a first through hole (641), and the first through hole (641) is communicated with the inner cavity. The upper ceramic sheet (630) is fixedly installed above the lower ceramic sheet (640), and the upper ceramic sheet (630) is provided with a second through hole (631), and the second through hole (631) is communicated with the inner cavity. The first through hole (631) is connected to the water outlet port (611); when the two conductive spring sheets (530) are not conducting, the first through hole (641) is aligned with the second through hole (631) to connect the second water inlet port (612) and the water outlet port (611); when the two conductive spring sheets (530) are conducting, the first through hole (641) is misaligned with the second through hole (631) to block the communication 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 surface of the upper ceramic plate (630) is provided with a limiting ring groove (632) for limiting the rotation angle of the lower ceramic plate (640), and the upper end surface of the lower ceramic plate (640) is provided with a protrusion (642), and the protrusion (642) is inserted into the limiting ring groove (632). The protrusion (642) can move along the limiting ring groove (632) and abut against the stop surfaces (633) at both ends of the limiting ring groove (632).

10. A bathroom cabinet, characterized in that: It comprises a wash basin body (700) and a drain device as described in any one of claims 1 to 9, the table top of the wash basin body (700) is provided with a mounting hole, the mounting hole is provided with a pipe body connector (800), the pipe body connector (800) is connected to the sewer main body (100), the pipe body connector (800) is provided with a pressing channel for a person to press the pressing assembly (300) by hand, and the side wall bottom of the wash basin 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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