Self-generating sterilization floor drain

Abstract

The invention relates to the field of drainage terminal devices, and discloses a self-generating sterilization floor drain. Comprising a control device, a drain valve, a shell, a sterilization device fixed on the shell, a hollow shaft extending downwards from the lower surface of the drain valve into the shell, a magnetic coupler driving disc connected with the lower end of the hollow shaft, a magnetic coupler driven disc extending upwards from the bottom of the shell, and a first coil group fixed around the magnetic coupler driven disc; wherein the magnetic coupler driven disc and the magnetic coupler driving disc are oppositely arranged; and a turbine structure is arranged on the upper surface of the drain valve. When water flow passes through the drainage valve, the drainage valve is driven to rotate under the action of the turbine structure, then the hollow shaft is driven to drive the driving disc of the magnetic coupler to rotate, the driven disc of the magnetic coupler is driven to rotate, and magnetic induction lines of the driven disc are cut by the first coil assembly to generate electric energy. The control device receives electric energy and provides the electric energy to the sterilization device. The device has the characteristics of simple structure and high practicability.

Description

Technical Field

[0001] The invention relates to a drainage terminal device, in particular to a self-generating and sterilizing floor drain. Background Art

[0002] The floor drain is an important interface that connects the drainage pipe system to the indoor floor, and is mainly used to discharge wastewater. Floor drains are usually located in humid environments such as bathrooms. This warm and humid condition provides an ideal growth environment for bacteria, allowing them to multiply rapidly. Among these bacteria, especially antibiotic-resistant bacteria, such as multidrug-resistant Escherichia coli and multidrug-resistant Pseudomonas aeruginosa, may cause diseases such as urinary tract infections and pneumonia, posing a threat to human health. In addition, when organic matter in the floor drain (such as food residues, grease, hair, etc.) decomposes under the action of bacteria, hydrogen sulfide gas is produced. This gas has the smell of rotten eggs and is a toxic gas that is harmful to the human body. Summary of the invention

[0003] The purpose of the present invention is to overcome the problem of poor practicality of floor drains in the prior art and to provide a self-generating sterilizing floor drain. The self-generating mechanism of the self-generating sterilizing floor drain provides a stable current for the sterilization device, thereby facilitating the effective sterilization of bacteria in the sewer. It isolates the sewer through a simple structure and reduces odor, and has the characteristics of simple structure and strong practicality.

[0004] In order to achieve the above-mentioned purpose, the self-generating sterilizing floor drain provided by the present invention includes a control device, a drain valve, a shell, a sterilizing device fixed on the shell, a hollow shaft extending downward from the lower surface of the drain valve into the shell, a magnetic coupling active disk connected to the lower end of the hollow shaft, a magnetic coupling driven disk extending upward from the bottom of the shell, and a first coil group fixed around the magnetic coupling driven disk. Among them, the magnetic coupling driven disk is arranged opposite to the magnetic coupling active disk, and the magnetic coupling driven disk is rotatably connected to the bottom of the shell through a rotating shaft; a plurality of blades extend upward from the upper surface of the drain valve, and the blades are symmetrical in center; When water flows through the drain valve, the blades are driven to rotate, which in turn drives the active disk of the magnetic coupler to rotate through the hollow shaft, which in turn drives the driven disk of the magnetic coupler to rotate, and the first coil group cuts the magnetic flux lines of the driven disk of the magnetic coupler to generate electrical energy; and The control device is connected to the first coil group and the sterilization device to receive electric energy from the first coil group and provide electric energy to the sterilization device. The device using electromagnetic power generation does not rely on external energy input, and is environmentally friendly and energy-saving. A self-made magnetic coupler is used to transmit the power inside the shell in a contactless transmission mode, without contact with the water flow, and the contactless transmission has little resistance to the water flow outside the shell, so that power generation is achieved without affecting the normal drainage of the floor drain.

[0005] Furthermore, the first coil group is fixed in the housing and is located above the driven disk of the magnetic coupling device. Such an arrangement can ensure that when the magnet of the driven disk rotates, the first coil group can effectively generate electrical energy.

[0006] Furthermore, a second coil group and a third magnet are provided in the housing, the third magnet is fixed on the rotating shaft, and the second coil group is fixed around the third magnet and connected to the control device; when the drain valve drives the driven disk of the magnetic coupling to rotate, the third magnet is driven to rotate through the rotating shaft, and the second coil group cuts the magnetic flux lines of the third magnet to generate electrical energy and transmit it to the control device. This ensures that when the third magnet rotates, the second coil group can effectively generate electrical energy.

[0007] Furthermore, the second coil group is connected in series with the first coil group. After the first coil group and the second coil group are connected in series, the whole is connected to the voltage doubling rectifier circuit module. The two coils are connected in series to obtain a higher voltage and power.

[0008] Furthermore, a magnet housing with a sleeve is provided in the housing, the magnet housing with the sleeve is fixed to the bottom of the housing, and one end of the rotating shaft away from the driven disk of the magnetic coupling is movably connected to the sleeve; the magnet housing circumferentially surrounds the third magnet, and the second coil group is provided on the magnet housing. The second coil group is made as close to the third magnet as possible, thereby obtaining a greater voltage and power.

[0009] Furthermore, the self-generating sterilizing floor drain also includes a magnetic suspension module, which includes a solid magnet and a hollow magnet; the solid magnet is embedded in the hollow shaft, close to the drain valve; the hollow magnet is fixed to the inner wall of the shell, and the center is hollowed out to allow the hollow shaft to move up and down, and the hollow magnet is always between the active disk of the magnetic coupler and the solid magnet; the magnetism of the adjacent magnetic poles of the solid magnet and the hollow magnet is the same. Ensure that the drain valve can rely on the repulsive force of the magnet to facilitate the switching between the sealing state and the drainage state.

[0010] Furthermore, the self-generating sterilizing floor drain is fixed in the sewer, including a sealed state and a draining state; in the sealed state, the solid magnet pushes the hollow shaft upward due to the repulsion of like charges, thereby driving the drain valve upward to the sewer outlet; in the draining state, the water flow squeezes the hollow shaft downward, thereby driving the drain valve downward to away from the sewer outlet.

[0011] Furthermore, the self-generating sterilizing floor drain is fixed in the sewer by a sealing device; the sealing device is arranged at the sewer outlet, opens downward and forms an accommodating cavity for accommodating a drain valve inside, and a sealing plate extends outward from the circumferential side wall of the drain valve; in the sealed state, the drain valve completely enters the accommodating cavity, and the sealing plate is buckled on the bottom of the sealing device; in the draining state, the drain valve is completely moved out of the accommodating cavity, and a gap is formed between the sealing plate and the bottom of the sealing device.

[0012] Furthermore, the sealing device includes a sealing column with openings on the upper and lower surfaces, and a connecting rod extending downward from the side wall of the sealing column, and the upper end of the shell is connected to the lower end of the connecting rod.

[0013] Furthermore, the sterilization device is a sterilization lamp, and a plurality of sterilization lamps are provided and evenly fixed on the inner wall of the shell; the shell is a transparent shell. Ultraviolet sterilization is used to reduce the growth of bacteria in the floor drain, and the transparent shell can make the ultraviolet rays penetrate better.

[0014] Furthermore, the drain valve is hemispherical, and the upper surface is convex; a plurality of blades are distributed radially along the drain valve. When draining, water flows from the center of the drain valve along the blades, and the dispersed water flow provides torque to each blade, thereby rotating the entire drain valve, driving the passive disk and the third magnet to rotate and generate electricity.

[0015] Furthermore, the control device includes a storage capacitor, a voltage doubling rectifier circuit module, and an undervoltage lockout voltage regulator chip; the voltage doubling rectifier circuit module is connected to the first coil group, and the output end of the undervoltage lockout voltage regulator chip is connected to the sterilization device; the voltage doubling rectifier circuit module stores the electric energy in the storage capacitor after receiving the electric energy, and the undervoltage lockout voltage regulator chip stably provides the electric energy in the storage capacitor to the sterilization device. The double voltage rectifier circuit is used to quickly increase the voltage of the storage capacitor. The low power undervoltage lockout voltage regulator chip is used to efficiently use the storage capacitor to supply power to the sterilization device.

[0016] Furthermore, the active disk of the magnetic coupler includes a main body and at least one first magnet pair arranged at the bottom of the main body, the first magnet pair includes two first magnets with opposite poles and symmetrically arranged; the driven disk of the magnetic coupler includes a slave body and at least one second magnet pair arranged at the top of the slave body, the second magnet pairs each include two second magnets with opposite poles and symmetrically arranged; and there is at least one first magnet pair that overlaps with a second magnet pair in the projection direction; when there are at least two first magnet pairs, the magnetic poles of adjacent first magnets are opposite; when there are at least two second magnet pairs, the magnetic poles of adjacent second magnets are opposite.

[0017] Furthermore, the number of the first magnet pairs and the number of the second magnet pairs are the same.

[0018] Furthermore, the first magnets are distributed in a centrally symmetrical manner, and the active disk of the magnetic coupling is completely identical to the driven disk of the magnetic coupling, so that the driven disk of the magnetic coupling can rotate faster.

[0019] Through the above technical solutions, it can be seen that the present invention has the characteristics of simple structure and strong practicality.

[0020] First of all, the present invention fully considers the functional characteristics of the sewer, and cleverly uses the fluidity of water to drive the drain valve with a turbine structure to rotate, thereby providing power for the magnetic coupler, driving the first coil group to cut the magnetic flux lines of the driven disk in the subsequent process, generating electrical energy based on the principle of electromagnetic induction, and providing the electrical energy to the sterilization device. In addition, a magnetic coupler consisting only of an active disk and a driven disk was made by hand, and used in the process of magnetic power generation. The above simple structure realizes self-generated sterilization at a low cost.

[0021] Secondly, by setting the repulsive force of the magnetic suspension module and the impact force of the water flow, the self-generating sterilizing floor drain can switch between the sealing state and the drainage state. When drainage is not needed, it enters the sealing state to isolate the odor of the sewer. In addition, a sealing device is set to achieve a better sealing effect. When drainage is needed, a large amount of water is discharged through the gap, and the function is flexible. In addition, the sterilization device can disinfect bacteria through a sterilization lamp to reduce the number of bacteria in the sewer, and can also dry and cool the sewer through a hair dryer to change the bacterial growth environment and inhibit bacterial reproduction. It is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main structure of a self-generating sterilizing floor drain equipped with a magnetic suspension module; Figure 2 It is a top view of the drain valve; Figure 3 A top view schematic diagram of the winding of the second coil assembly and the magnet housing; Figure 4 for Figure 1 A schematic diagram of the structure when a sealing device is provided; Figure 5 Schematic diagram of the control process of the control device.

[0023] Description of Reference Numerals 1 is a hollow shaft, 2 is a drain valve, 3 is a solid magnet, 4 is a hollow magnet, 5 is a shell, 6 is a blade, 7 is a germicidal lamp, 8 is a magnetic coupler active disk, 9 is a magnetic coupler driven disk, 10 is a first coil group, 11 is a second coil group, 12 is a rotating shaft, 13 is a third magnet, 14 is a magnet housing with a sleeve, 15 is a storage capacitor, 16 is a voltage doubler rectifier circuit module, 17 is an undervoltage lockout voltage regulator chip, 18 is a sealing column, 19 is a connecting rod, 20 is a sealing plate, and 21 is a fixed bracket. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0025] See also Figures 1 to 3 The present invention discloses a self-generating sterilizing floor drain, comprising a control device, a drain valve 2, a housing 5, a sterilizing device fixed on the housing 5, a hollow shaft 1 extending downward from the lower surface of the self-draining valve 2 into the housing 5, a magnetic coupling active disk 8 connected to the lower end of the hollow shaft 1, a magnetic coupling driven disk 9 extending upward from the bottom of the housing 5, and a first coil group 10 fixed around the magnetic coupling driven disk 9. The hollow shaft 1 is made of plastic.

[0026] Among them, see Figure 2 , a number of blades 6 extend upward from the upper surface of the drain valve 2, and the blades 6 are symmetrical about the center. Specifically, the drain valve 2 is hemispherical, and the upper surface is a convexity. A number of blades 6 are distributed radially along the drain valve 2, and a turbine structure is formed on the hemispherical convexity. When the water flows through the upper surface of the drain valve 2, it first spreads out from the middle of the upper surface of the drain valve 2 to the surroundings along the gaps between the blades 6. Due to the existence of the turbine structure, when the water flows out to the surroundings, it will drive the drain valve 2 to rotate, and then drive the hollow shaft 1 connected to the drain valve 2 to rotate, and drive the magnetic coupling active disk 8 to rotate through the hollow shaft 1, and then drive the magnetic coupling driven disk 9 to rotate, and the first coil group 10 cuts the magnetic flux lines of the magnetic coupling driven disk 9 to generate electrical energy, and the control device receives the electrical energy and provides the electrical energy to the sterilization device. In this embodiment, the drain valve 2 can be made of plastic material.

[0027] The present invention is based on the principle of magnetic coupling and innovates to produce a simple synchronous magnetic coupler. The magnetic coupler driven disk 9 and the magnetic coupler active disk 8 do not need to be attached to the same rotating shaft to ensure synchronous rotation. The magnetic coupler active disk 8 is connected to the lower end of the hollow shaft 1, and the magnetic coupler driven disk 9 extends upward from the bottom of the shell 5, and the magnetic coupler driven disk 9 is rotatably connected to the bottom of the shell 5 through the rotating shaft 12, which ensures that when the magnetic coupler active disk 8 rotates, the magnetic coupler driven disk 9 can be driven to rotate. At this time, it is only necessary to ensure that the magnetic coupler driven disk 9 is arranged relative to the magnetic coupler active disk 8. Once the magnetic coupler active disk 8 rotates, in order to ensure that the magnetic poles are opposite, it will drive the magnetic coupler driven disk 9 to rotate. The magnetic coupler active disk 8 and the magnetic coupler driven disk 9 are both magnetic disks, and the specific settings are as follows. The active disk 8 of the magnetic coupling device includes a main body and at least one first magnet pair arranged at the bottom of the main body, the first magnet pair includes two first magnets with opposite magnetic poles and symmetrically arranged. When there are at least two first magnet pairs, the magnetic poles of adjacent first magnets are opposite, that is, the polarities of adjacent first magnets are arranged alternately. Correspondingly, the driven disk 9 of the magnetic coupling device includes a slave body and at least one second magnet pair arranged at the top of the slave body, the second magnet pairs each include two second magnets with opposite magnetic poles and symmetrically arranged. And when there are at least two second magnet pairs, the magnetic poles of adjacent second magnets are opposite, that is, the polarities of adjacent second magnets are arranged alternately. Further, at least one first magnet pair overlaps with one second magnet pair in the projection direction. When the active disk 8 of the magnetic coupling device and the driven disk 9 of the magnetic coupling device are not rotating, the projection positions of the first magnet and the second magnet may not overlap, but it is necessary to ensure that when the active disk 8 of the magnetic coupling device and the driven disk 9 of the magnetic coupling device rotate stably, at least one first magnet pair and one second magnet pair always overlap in the projection direction. In one embodiment, the number of the first magnet pair and the second magnet pair is the same. In another embodiment, the first magnets are centrally symmetrically distributed, and the magnetic coupling active disk 8 is identical to the magnetic coupling driven disk 9. In this embodiment, the magnetic coupling active disk 8 is identical to the magnetic coupling driven disk 9, the first magnet pair and the second magnet pair are both 3, and the first magnet and the second magnet are both cylindrical magnets with a height of 2 mm and a diameter of 5 mm.

[0028] According to the power consumption of the sterilization device, the present invention sets two power generation methods. The first method is to generate electric energy by only rotating the magnetic coupler driven disk 9 so that the stationary first coil group 10 cuts the magnetic flux lines of the magnetic coupler driven disk 9. Specifically, the first coil group 10 is fixed in the housing 5, located above the magnetic coupler driven disk 9. The first coil group 10 is four coils connected in series. The coil is fixed on a plastic plate, and the plastic plate is fixed between the active disk and the driven disk of the magnetic coupler, close to the top of the driven disk. In this embodiment, the magnetic coupler driven disk 9 and the first coil group 10 can be separated by, for example, 1 mm. The control device is connected to the first coil group 10 and the sterilization device, and the drain valve 2 drives the magnetic coupler driven disk 9 to rotate, so that the first coil group 10 cuts the magnetic flux lines of the magnetic coupler driven disk 9 to generate electric energy. The control device receives electric energy from the first coil group 10 and provides the electric energy to the sterilization device. The second method is to make the first coil group 10 cut the magnetic flux lines of the magnetic coupler driven disk 9 by rotating the magnetic coupler driven disk 9, and to make the second coil group 11 cut the magnetic flux lines of the third magnet 13 by rotating the third magnet 13 connected to the rotating shaft 12, and generate electric energy at the same time. At this time, the second coil group 11 and the third magnet 13 are arranged in the housing 5. The third magnet 13 is fixed on the rotating shaft 12, the second coil group 11 is fixed around the third magnet 13 and connected to the control device, and the second coil group 11 can also be connected in series with the first coil group 10. In this embodiment, the second coil group 11 is four coils connected in series. In order to improve the power generation effect, the present invention also provides a magnet housing 14 with a sleeve in the housing 5, the magnet housing 14 with a sleeve is fixed to the bottom of the housing 5, and the end of the rotating shaft 12 away from the magnetic coupler driven disk 9 is movably connected to the sleeve; the magnet housing 14 with a sleeve circumferentially surrounds the third magnet 13, and the four coils of the second coil group 11 are all wound on the magnet housing 14. In the case where the first coil group 10 and the second coil group 11 exist at the same time, when the drain valve 2 drives the magnetic coupling driven disk 9 to rotate, the third magnet 13 is driven to rotate through the rotating shaft 12 so that the second coil group 11 cuts the magnetic flux lines of the third magnet 13, generates electric energy and transmits it to the control device. In this embodiment, the first coil group 10 and the second coil group 11 can both use a wire diameter of, for example, 0.05 mm.

[0029] See also Figure 1 , Figure 5As shown, the control device may specifically include a storage capacitor 15, a voltage-doubling rectifier circuit module 16 for rectification and boosting, and an undervoltage lockout voltage regulator chip 17 for effectively managing the amount of electricity in the storage capacitor 15. The voltage-doubling rectifier circuit module 16 is connected to the first coil group 10 and / or the second coil, and the output end of the undervoltage lockout voltage regulator chip 17 is connected to the sterilization device; after receiving the electric energy, the voltage-doubling rectifier circuit module 16 quickly stores the electric energy in the storage capacitor 15, and the capacitor is connected to the undervoltage lockout voltage regulator chip 17, and the undervoltage lockout voltage regulator chip 17 stably provides the electric energy in the storage capacitor 15 to the sterilization device, so as to realize intermittent power supply. The voltage-doubling rectifier circuit adopts a double boost rectifier circuit. The storage capacitor 15 uses a 470uf capacitor. The undervoltage lockout voltage regulator chip 17 can output a constant voltage and quickly release the electric energy of the storage capacitor 15, so that the sterilization device can obtain a larger instantaneous power and achieve a sterilization effect. In order to ensure safety, in this embodiment, the control device is arranged in a waterproof plastic container.

[0030] The sterilization device is a sterilization lamp 7, which is provided with a plurality of sterilization lamps 7 and evenly fixed on the inner wall of the housing 5. At this time, the housing 5 adapted to the sterilization lamp 7 is a transparent housing, which can make the sterilization light better irradiate the bacteria outside the housing 5. In this embodiment, the sterilization lamp 7 uses a chip ultraviolet LED, and there are four chip ultraviolet LEDs in total. The four ultraviolet LEDs are connected in parallel and evenly fixed on the inner side of the transparent housing. The wavelength of the chip ultraviolet LED is 254nm, and the electrical power is 0.2W.

[0031] In order to achieve the sealing of the present invention and prevent the odor in the sewer from entering the room through the floor drain, the present invention also sets a magnetic suspension module in the shell 5. The magnetic suspension module includes a solid magnet 3 and a hollow magnet 4; the solid magnet 3 is embedded in the hollow shaft 1, close to the drain valve 2; the hollow magnet 4 is fixed to the inner wall of the shell 5, and is hollowed out in the center to make the hollow shaft 1 move up and down, and the hollow magnet 4 is always between the active disk 8 of the magnetic coupler and the solid magnet 3; the magnetic properties of the adjacent magnetic poles of the solid magnet 3 and the hollow magnet 4 are the same. The self-generated sterilizing floor drain is fixed in the sewer, and the switching between the sealing state and the drainage state can be realized. In the sealed state, the solid magnet 3 moves up to the bottom surface of the contact drain valve 2 based on the repulsion of like charges, and pushes the hollow shaft 1 to move up in the process of continuing to move up, and then drives the drain valve 2 to move up to the sewer outlet. At this time, there is no gap at the sewer outlet, and the odor in the sewer cannot enter the room, completing the sealed state. In the drainage state, a large amount of water flows on the upper surface of the drain valve 2. When the water pressure is greater than the repulsive force between the hollow magnet 4 and the solid magnet 3, the water flows squeeze the drain valve 2 while rotating and moving downward, and at the same time drives the hollow shaft 1 downward. In the process of continuous downward movement, the drain valve 2 is driven downward to move away from the sewer outlet. At this time, there is a gap at the sewer outlet for water to pass through. The water flows through the gap into the sewer, completing the drainage state. In this embodiment, the magnetic suspension module uses a permanent magnet of model N38, and the solid magnet 3 is cylindrical, and its thickness is greater than that of the hollow magnet 4.

[0032] On the basis of the above sealing, in order to achieve a better sealing effect, the present invention sets a sealing device, please refer to Figure 4 As shown, the self-generating sterilizing floor drain is fixed in the sewer through a sealing device. The sealing device is arranged at the sewer mouth, opens downward and forms a receiving chamber for accommodating the drain valve 2 inside, and the sealing plate 20 extends outward from the side wall of the drain valve 2 in the circumferential direction. In the sealed state, the drain valve 2 completely enters the receiving chamber, and the sealing plate 20 is buckled at the bottom of the sealing device. At this time, there is no gap. The receiving chamber is isolated from the sewer by the sealing plate 20 and the drain valve 2 to prevent odor from rising. In the drainage state, the drain valve 2 is completely removed from the receiving chamber, and a gap is formed between the sealing plate 20 and the bottom of the sealing device, so that the water flows through the gap into the sewer to complete the drainage. In this embodiment, the sealing device includes a sealing column 18 with openings on both the upper and lower surfaces, and a connecting rod 19 extending downward from the side wall of the sealing column 18, and the upper end of the shell 5 is connected to the lower end of the connecting rod 19. During the up and down movement of the drain valve 2, the sealing column 18 of the sealing device is fixed to the sewer outlet, and the shell 5 of the floor drain is fixed stationary by the connecting rod 19. When the drain valve 2 moves, the bottom surface of the drain valve 2 and the shell 5 always maintain a certain distance, and there is space for a large amount of water to flow through, which facilitates the rapid discharge of water.

[0033] In this embodiment, the hollow magnet 4 and the first coil group 10 are fixed inside the housing 5 by a fixing bracket 21. A protective shell is provided outside the second coil group 11. The contact position between the outer wall of the sealing column 18 of the sealing device and the inner wall of the sewer is reinforced by a sealing ring.

[0034] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention. For example, the first coil group 10 and the second coil group 11 can be changed from being connected in series to being connected in parallel with the first coil group 10 and the second coil group 11, the number of coils in the first coil group 10 can be changed, and the number of winding turns can be changed. The various specific technical features can be combined in any suitable manner, such as using a sealing device and a magnetic levitation module at the same time. In order to avoid unnecessary repetition, the present invention will not further explain various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention, and they all belong to the protection scope of the present invention.

Claims

1. A self-generating sterilizing floor drain, characterized in that: The invention comprises a control device, a drain valve (2), a shell (5), a sterilizing device fixed to the shell (5), a hollow shaft (1) extending downward from the lower surface of the drain valve (2) into the shell (5), a magnetic coupling active disk (8) connected to the lower end of the hollow shaft (1), a magnetic coupling driven disk (9) extending upward from the bottom of the shell (5), and a first coil group (10) fixed around the magnetic coupling driven disk (9); The driven disk (9) of the magnetic coupling device is arranged opposite to the active disk (8) of the magnetic coupling device, and the driven disk (9) of the magnetic coupling device is rotatably connected to the bottom of the housing (5) via a rotating shaft (12); a plurality of blades (6) extend upward from the upper surface of the drain valve (2), and the blades (6) are symmetrical in center; When water flows through the drain valve (2), the blade (6) is driven to rotate, thereby driving the magnetic coupling active disk (8) to rotate through the hollow shaft (1), thereby driving the magnetic coupling driven disk (9) to rotate, and the first coil group (10) cuts the magnetic flux lines of the magnetic coupling driven disk (9) to generate electrical energy; and The control device is connected to the first coil group (10) and the sterilization device, and is used to receive electrical energy from the first coil group (10) and provide electrical energy to the sterilization device.

2. The self-generating sterilizing floor drain according to claim 1, characterized in that: The first coil group (10) is fixed in the housing (5) and is located above the driven disc (9) of the magnetic coupling.

3. The self-generating sterilizing floor drain according to claim 1, characterized in that: A second coil group (11) and a third magnet (13) are also provided in the housing (5); the third magnet (13) is fixed on the rotating shaft (12); the second coil group (11) is fixed around the third magnet (13) and is connected to the control device; When the drain valve (2) drives the driven disk (9) of the magnetic coupling to rotate, the third magnet (13) is driven to rotate via the rotating shaft (12), and the second coil group (11) cuts the magnetic flux lines of the third magnet (13), thereby generating electric energy and transmitting it to the control device.

4. The self-generating sterilizing floor drain according to claim 3 is characterized in that: The second coil group (11) is connected in series with the first coil group (10).

5. The self-generating sterilizing floor drain according to claim 3, characterized in that: A magnet housing (14) with a shaft sleeve is also provided in the housing (5), the magnet housing (14) with a shaft sleeve is fixed to the bottom of the housing (5), and one end of the rotating shaft (12) away from the driven disk (9) of the magnetic coupler is movably connected to the shaft sleeve; the magnet housing circumferentially surrounds the third magnet (13), and the second coil group (11) is arranged on the magnet housing.

6. The self-generating sterilizing floor drain according to claim 1, characterized in that: The self-generating sterilizing floor drain further comprises a magnetic suspension module, the magnetic suspension module comprising a solid magnet (3) and a hollow magnet (4); the solid magnet (3) is embedded in the hollow shaft (1) and is close to the drain valve (2); the hollow magnet (4) is fixed to the inner wall of the shell (5) and is hollowed out in the center to enable the hollow shaft (1) to move up and down, and the hollow magnet (4) is always between the active disk (8) of the magnetic coupler and the solid magnet (3); the magnetism of adjacent poles of the solid magnet (3) and the hollow magnet (4) is the same.

7. The self-generating sterilizing floor drain according to claim 6, characterized in that: The self-generating sterilizing floor drain is fixed in the sewer, including a sealing state and a drainage state; In the sealed state, the solid magnet (3) pushes the hollow shaft (1) upwards due to repulsion between like charges, thereby driving the drain valve (2) upwards to the sewer outlet; in the draining state, the water flow squeezes the hollow shaft (1) downwards, thereby driving the drain valve (2) downwards away from the sewer outlet.

8. The self-generating sterilizing floor drain according to claim 7, characterized in that: The self-generating sterilizing floor drain is fixed in the sewer via a sealing device; the sealing device is arranged at the sewer outlet, opens downward and forms an accommodating cavity for accommodating the drain valve (2) therein, and a sealing plate (20) extends outwardly from the side wall of the drain valve (2); In the sealing state, the drain valve (2) completely enters the accommodating cavity, and the sealing plate (20) is buckled on the bottom of the sealing device; in the draining state, the drain valve (2) completely moves out of the accommodating cavity, and a gap is formed between the sealing plate (20) and the bottom of the sealing device.

9. The self-generating sterilizing floor drain according to claim 8, characterized in that: The sealing device comprises a sealing column (18) with openings on both upper and lower surfaces, and a connecting rod (19) extending downward from a side wall of the sealing column (18), wherein the upper end of the housing (5) is connected to the lower end of the connecting rod (19).

10. The self-generating sterilizing floor drain according to claim 1, characterized in that: The sterilization device is a sterilization lamp (7), and a plurality of the sterilization lamps (7) are provided and evenly fixed on the inner wall of the shell (5); the shell (5) is a transparent shell.

11. The self-generating sterilizing floor drain according to claim 1, characterized in that: The drain valve (2) is hemispherical, and the upper surface is convex; a plurality of blades (6) are distributed radially along the drain valve (2).

12. The self-generating sterilizing floor drain according to claim 1, characterized in that: The control device comprises a storage capacitor (15), a voltage-doubling rectifier circuit module (16), and an undervoltage lockout voltage stabilizing chip (17); the voltage-doubling rectifier circuit module (16) is connected to the first coil group (10), and the output end of the undervoltage lockout voltage stabilizing chip (17) is connected to the sterilization device; the voltage-doubling rectifier circuit module (16) stores the electric energy in the storage capacitor (15) after receiving the electric energy, and the undervoltage lockout voltage stabilizing chip (17) stably supplies the electric energy in the storage capacitor (15) to the sterilization device.

13. The self-generating sterilizing floor drain according to claim 1, characterized in that: The magnetic coupling active disk (8) comprises a main body and at least one first magnet pair arranged at the bottom of the main body, the first magnet pair comprising two first magnets with opposite magnetic poles and symmetrically arranged; the magnetic coupling driven disk (9) comprises a slave body and at least one second magnet pair arranged at the top of the slave body, the second magnet pair comprising two second magnets with opposite magnetic poles and symmetrically arranged; and at least one of the first magnet pairs overlaps with one of the second magnet pairs in the projection direction; When there are at least two pairs of the first magnets, the magnetic poles of adjacent first magnets are opposite; when there are at least two pairs of the second magnets, the magnetic poles of adjacent second magnets are opposite.

14. The self-generating sterilizing floor drain according to claim 1, characterized in that: The number of the first magnet pairs and the number of the second magnet pairs are the same.

15. The self-generating sterilizing floor drain according to claim 1, characterized in that: The first magnets are distributed in a centrally symmetrical manner, and the active disk (8) of the magnetic coupling is completely identical to the driven disk (9) of the magnetic coupling.

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