Self-generating sterilization floor drain

Abstract

The application relates to the field of water drainage terminal devices and discloses a self-power-generation sterilization floor drain which comprises a control device, a drainage valve, a shell, a sterilization device fixed to the shell, a hollow shaft extending downwards from the lower surface of the drainage 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 is oppositely arranged with the magnetic coupler driving disc; and the upper surface of the drainage valve is provided with a turbine structure. When water flows through the drainage valve, the water is driven to rotate the drainage valve under the action of the turbine structure, the hollow shaft is driven to rotate the magnetic coupler driving disc, the magnetic coupler driven disc is driven to rotate, and the first coil group cuts the magnetic induction lines of the driven disc to generate electric energy. The control device receives the electric energy and provides the electric energy to the sterilization device. The application has the characteristics of simple structure and strong practicability.

Description

TECHNICAL FIELD

[0001] The present application relates to a terminal device for drainage, in particular to a self-generating sterilization floor drain. BACKGROUND

[0002] Floor drain is an important interface connecting drainage pipe system and indoor floor, mainly used for discharging waste water. The floor drain is usually located in a humid environment such as a bathroom. The warm and humid conditions provide an ideal environment for bacteria to grow, causing bacteria to multiply rapidly. Among these bacteria, especially antibiotic-resistant bacteria such as multi-drug resistant Escherichia coli and multi-drug resistant Pseudomonas aeruginosa, can cause diseases such as urinary tract infection and pneumonia, which can pose a threat to human health. In addition, when organic matter (such as food residue, oil, hair, etc.) in the floor drain decomposes under the action of bacteria, hydrogen sulfide gas is produced. This gas has a rotten egg smell and is a toxic gas that is harmful to the human body. SUMMARY

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

[0004] In order to achieve the above-mentioned purpose, the self-generating sterilization floor drain provided by the present application comprises a control device, a drain valve, a shell, a sterilization device fixed to the shell, a hollow shaft extending downward from the lower surface of the drain valve into the shell, a magnetic coupler driving disc connected to the lower end of the hollow shaft, a magnetic coupler driven disc extending upward from the bottom of the shell, and a first coil group fixed around the magnetic coupler driven disc. The magnetic coupler driven disc is arranged opposite to the magnetic coupler driving disc, and the magnetic coupler driven disc is rotatably connected to the bottom of the shell through a rotating shaft; the upper surface of the drain valve extends upward by a plurality of blades, and the blades are centrally symmetric;

[0005] When the water flow passes through the drain valve, the blades are driven to rotate, thereby driving the magnetic coupler driving disc to rotate through the hollow shaft, and driving the magnetic coupler driven disc to rotate, and cutting the magnetic induction lines of the magnetic coupler driven disc by the first coil group to generate electric energy; and

[0006] 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 electromagnetic power generation device does not rely on external energy input and is environmentally friendly and energy-saving. The self-made magnetic coupler transmits power inside the shell in a non-contact transmission mode, does not come into contact with the water flow, and the non-contact transmission has small resistance to the water flow outside the shell, achieving power generation while not affecting the normal drainage of the floor drain.

[0007] Further, the first coil group is fixed in the shell and located above the magnetic coupling driven disc. This arrangement can ensure that the first coil group can effectively generate electricity when the magnet of the driven disc rotates.

[0008] Further, the shell further comprises a second coil group and a third magnet, the third magnet is fixed on the rotating shaft, and the second coil group is fixed around the third magnet and connected with the control device; when the drain valve drives the magnetic coupling driven disc to rotate, the third magnet rotates through the rotating shaft, and the second coil group cuts the magnetic induction lines of the third magnet to generate electricity and transmit it to the control device. It can ensure that the second coil group can effectively generate electricity when the third magnet rotates.

[0009] Further, 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 with the voltage doubling rectifier circuit module, and the two coils in series can obtain greater voltage and power.

[0010] Further, the shell further comprises a magnet shell with a shaft sleeve, the magnet shell with a shaft sleeve is fixed on the bottom of the shell, and the end of the rotating shaft away from the magnetic coupling driven disc is movably connected with the shaft sleeve; the magnet shell circumferentially surrounds the third magnet, and the second coil group is arranged on the magnet shell. The second coil group is as close as possible to the third magnet, thereby obtaining greater voltage and power.

[0011] Further, the self-generating sterilization floor drain further comprises a magnetic suspension module, the magnetic suspension module comprises 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 on the inner wall of the shell, and the center is hollowed out to allow the hollow shaft to move up and down, the hollow magnet is always between the magnetic coupling driving disc and the solid magnet; the solid magnet and the hollow magnet have the same magnetic properties at adjacent poles. Ensure that the drain valve can be repelled by the magnet, and facilitate switching between the sealed state and the drainage state.

[0012] Further, the self-generating sterilization floor drain is fixed in the sewer and comprises a sealed state and a drainage state; in the sealed state, the solid magnet pushes the hollow shaft to move up based on the same repulsion, thereby driving the drain valve to move up to the sewer outlet; in the drainage state, the water flow presses the hollow shaft to move down, thereby driving the drain valve to move away from the sewer outlet.

[0013] Further, the self-generating sterilization floor drain is fixed in the sewer through a sealing device; the sealing device is arranged at the sewer outlet and has a downward opening and forms a containing cavity inside to accommodate the drain valve, and the side wall of the drain valve extends outwardly to form a sealing plate; in the sealed state, the drain valve is completely in the containing cavity, and the sealing plate is buckled on the bottom of the sealing device; in the drainage state, the drain valve is completely removed from the containing cavity, and the sealing plate forms a gap with the bottom of the sealing device.

[0014] Further, the sealing device comprises a sealing column with openings on 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 with the lower end of the connecting rod.

[0015] Further, the sterilization device is a sterilization lamp, and the sterilization lamp is provided with a plurality of sterilization lamps which are uniformly fixed on the inner wall of the shell; and the shell is a transparent shell.

[0016] Further, the drainage valve is semispherical, and the upper surface is convex; and a plurality of blades are distributed along the radial direction of the drainage valve.

[0017] Further, the control device comprises a storage capacitor, a voltage doubling rectifier circuit module, and an under-voltage lockout voltage stabilizing chip; the voltage doubling rectifier circuit module is connected with the first coil group, and the output end of the under-voltage lockout voltage stabilizing chip is connected with the sterilization device; after receiving electric energy, the voltage doubling rectifier circuit module stores the electric energy in the storage capacitor, and the under-voltage lockout voltage stabilizing chip stably provides the electric energy in the storage capacitor to the sterilization device.

[0018] Further, the driving disc of the magnetic coupler comprises a main body and at least one first magnet pair arranged on the bottom of the main body, and the first magnet pair comprises two first magnets which are oppositely arranged and symmetrically arranged; the driven disc of the magnetic coupler comprises a slave body and at least one second magnet pair arranged on the top of the slave body, and the second magnet pair comprises two second magnets which are oppositely arranged and symmetrically arranged; and at least one first magnet pair coincides with one second magnet pair in the projection direction; when there are at least two first magnet pairs, the adjacent first magnets are oppositely arranged; and when there are at least two second magnet pairs, the adjacent second magnets are oppositely arranged.

[0019] Further, the number of the first magnet pairs is the same as that of the second magnet pairs.

[0020] Further, the first magnets are centrally symmetrically arranged, and the driving disc of the magnetic coupler is completely the same as the driven disc of the magnetic coupler.

[0021] Through the above technical scheme, it can be known that the present application has the characteristics of simple structure and strong practicability.

[0022] First, the application fully considers the functional characteristics of the sewer, and ingeniously uses the fluidity of water to drive the rotation of the drain valve with turbine structure, and then provides power for the magnetic coupler, drives the first coil group to cut the magnetic induction line of the driven disc, generates electric energy based on the principle of electromagnetic induction, and provides electric energy to the sterilization device. In addition, a magnetic coupler composed of a driving disc and a driven disc is self-made, and is used in the process of magnetic power generation, and self-generating sterilization is realized through the above simple structure, and the cost is low.

[0023] Secondly, by setting the repulsive force of the magnetic suspension module and the impact force of the water flow, the self-generating sterilization floor drain can be switched between the sealed state and the drainage state, and when drainage is not needed, it enters the sealed state to isolate the odor of the sewer. In addition, a sealing device is provided to achieve better sealing effect, and 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 kill bacteria through the sterilization lamp, reduce the number of bacteria in the sewer, and also can make the sewer dry and cool through the hair dryer, change the bacteria growth environment, and inhibit the reproduction of bacteria, which is very practical. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic view of the main structure of the self-generating sterilization floor drain provided with a magnetic suspension module;

[0025] Figure 2 It is a top view schematic view of the drain valve;

[0026] Figure 3 It is a top view schematic view of the second coil group and the magnet shell winding;

[0027] Figure 4 It is Figure 1 Structure schematic view when provided with a sealing device;

[0028] Figure 5 It is a control process schematic view of the control device.

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] 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 sterilization lamp, 8 is a magnetic coupler driving disc, 9 is a magnetic coupler driven disc, 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 shell with a shaft sleeve, 15 is a storage capacitor, 16 is a voltage doubler rectifier circuit module, 17 is an under-voltage lockout voltage regulator chip, 18 is a sealing column, 19 is a connecting rod, 20 is a sealing plate, 21 is a fixed support. DETAILED DESCRIPTION

[0031] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the present application.

[0032] Referring to Figures 1 to 3 The present application discloses a self-generating sterilization floor drain, comprising a control device, a drain valve 2, a shell 5, a sterilization device fixed on the shell 5, a hollow shaft 1 extending downward from the lower surface of the drain valve 2 into the shell 5, a magnetic coupler driving disc 8 connected to the lower end of the hollow shaft 1, a magnetic coupler driven disc 9 extending upward from the bottom of the shell 5, and a first coil set 10 fixed around the magnetic coupler driven disc 9. The hollow shaft 1 is made of plastic.

[0033] Referring to Figure 2 The upper surface of the drain valve 2 extends upward by several blades 6, which are centrally symmetric. Specifically, the drain valve 2 is semispherical, and the upper surface is convex. The several blades 6 are distributed radially along the drain valve 2 and form a turbine structure on the convex surface. When water flows over the upper surface of the drain valve 2, it first spreads out from the middle to the periphery of the upper surface of the drain valve 2 through the gaps between the blades 6. Due to the turbine structure, the water flow drives the drain valve 2 to rotate when it spreads out to the periphery, thereby driving the hollow shaft 1 connected to the drain valve 2 to rotate. The hollow shaft 1 drives the magnetic coupler driving disc 8 to rotate, thereby driving the magnetic coupler driven disc 9 to rotate and cutting the magnetic induction lines of the magnetic coupler driven disc 9 by the first coil set 10 to generate electricity. The control device receives the electricity and provides it to the sterilization device. In this embodiment, the drain valve 2 can be made of plastic.

[0034] The application is based on the principle of magnetic coupling and innovatively makes a simple synchronous magnetic coupling device. The driven disc 9 of the magnetic coupling device and the driving disc 8 of the magnetic coupling device do not need to be connected to the same rotating shaft to ensure synchronous rotation. The driving disc 8 of the magnetic coupling device is connected to the lower end of the hollow shaft 1, the driven disc 9 of the magnetic coupling device extends upward from the bottom of the shell 5, and the driven disc 9 of the magnetic coupling device is rotatably connected to the bottom of the shell 5 through the rotating shaft 12, so that when the driving disc 8 of the magnetic coupling device rotates, the driven disc 9 of the magnetic coupling device can be driven to rotate. At this time, it is only necessary to ensure that the driven disc 9 of the magnetic coupling device and the driving disc 8 of the magnetic coupling device are oppositely arranged. Once the driving disc 8 of the magnetic coupling device rotates, the driven disc 9 of the magnetic coupling device will be driven to rotate in order to ensure that the magnetic poles are opposite. The driving disc 8 of the magnetic coupling device and the driven disc 9 of the magnetic coupling device are both magnetic discs, which are specifically arranged as follows. The driving disc 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 and symmetrically arranged magnetic poles. 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 alternately arranged. Correspondingly, the driven disc 9 of the magnetic coupling device includes a from body and at least one second magnet pair arranged at the top of the from body. The second magnet pair includes two second magnets with opposite and symmetrically arranged magnetic poles. 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 alternately arranged. Furthermore, at least one first magnet pair coincides with one second magnet pair in the projection direction. When the driving disc 8 of the magnetic coupling device and the driven disc 9 of the magnetic coupling device are not rotating, the projection positions of the first magnets and the second magnets can not coincide, but it is necessary to ensure that when the driving disc 8 of the magnetic coupling device and the driven disc 9 of the magnetic coupling device stably rotate, at least one first magnet pair and one second magnet pair always coincide in the projection direction. In one embodiment, the number of first magnet pairs and second magnet pairs is the same. In another embodiment, the first magnets are centrally symmetrically distributed, and the driving disc 8 of the magnetic coupling device and the driven disc 9 of the magnetic coupling device are completely the same. In this embodiment, the driving disc 8 of the magnetic coupling device and the driven disc 9 of the magnetic coupling device are completely the same, the number of first magnet pairs and second magnet pairs is three, and the first magnets and the second magnets are both cylindrical magnets with a height of 2 mm and a diameter of 5 mm.

[0035] According to the power consumption of the sterilization device, the application sets two power generation modes. The first mode is to generate power by cutting the magnetic induction lines of the magnetic coupling driven disc 9 with the static first coil group 10. Specifically, the first coil group 10 is fixed in the shell 5 above the magnetic coupling driven disc 9. The first coil group 10 is four coils in series, which are fixed on a plastic plate. The plastic plate is fixed between the driving disc and the driven disc of the magnetic coupling, close to the top of the driven disc. In this embodiment, the magnetic coupling driven disc 9 and the first coil group 10 can be apart from each other by, for example, 1 mm. The control device is connected with the first coil group 10 and the sterilization device. The drain valve 2 drives the magnetic coupling driven disc 9 to rotate, so that the first coil group 10 cuts the magnetic induction lines of the magnetic coupling driven disc 9 to generate power. The control device receives the power from the first coil group 10 and provides the power to the sterilization device. The second mode is to generate power by cutting the magnetic induction lines of the magnetic coupling driven disc 9 with the first coil group 10 and cutting the magnetic induction lines of the third magnet 13 with the second coil group 11 connected with the rotating shaft 12. At this time, the second coil group 11 and the third magnet 13 are arranged in the shell 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 with the control device. 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 in series. In order to improve the power generation effect, the application further provides a magnet shell with a shaft sleeve 14 fixed on the bottom of the shell 5. The end of the rotating shaft 12 away from the magnetic coupling driven disc 9 is movably connected with the shaft sleeve. The magnet shell with a shaft sleeve 14 circumferentially surrounds the third magnet 13. The four coils of the second coil group 11 are wound on the magnet shell 14. When 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 disc 9 to rotate, the third magnet 13 is rotated by the rotating shaft 12 to cut the magnetic induction lines of the third magnet 13 with the second coil group 11 to generate power and transmit the power to the control device. In this embodiment, the first coil group 10 and the second coil group 11 can both use, for example, 0.05 mm wire diameter.

[0036] Please refer to Figure 1 , Figure 5As shown, the control device can specifically include a storage capacitor 15, a voltage doubling rectifier circuit module 16 for rectification and voltage boosting, an under-voltage lockout voltage stabilizing chip 17 for effectively managing the power in the storage capacitor 15. Among them, the voltage doubling rectifier circuit module 16 is connected with the first coil group 10 and / or the second coil, and the output end of the under-voltage lockout voltage stabilizing chip 17 is connected with the sterilization device; the voltage doubling rectifier circuit module 16 stores the electric energy in the storage capacitor 15 after receiving the electric energy, the capacitor is connected with the under-voltage lockout voltage stabilizing chip 17, and the under-voltage lockout voltage stabilizing chip 17 stably provides the electric energy in the storage capacitor 15 to the sterilization device, so that intermittent power supply can be realized. The voltage doubling rectifier circuit adopts a two-time voltage boosting rectifier circuit. The storage capacitor 15 uses a 470uf capacitor. The under-voltage lockout voltage stabilizing 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 the sterilization effect. In order to ensure safety, the control device is arranged in a waterproof plastic container in the embodiment.

[0037] The sterilization device is a sterilization lamp 7, which is provided with a plurality of and uniformly fixed to the inner wall of the shell 5. At this time, the shell 5 matched with the sterilization lamp 7 is a transparent shell, which can make the sterilization light better irradiate to the bacteria outside the shell 5. In the embodiment, the sterilization lamp 7 adopts a patch ultraviolet LED, which has a total of four. The four ultraviolet LEDs are connected in parallel and are uniformly fixed to the inner side of the transparent shell. The wavelength of the patch ultraviolet LED is 254nm, and the electric power is 0.2 W.

[0038] In order to realize the sealing of the application, prevent the odor in the sewer from entering the room through the floor drain, the application 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 on the inner wall of the shell 5, and hollowed in the center to make the hollow shaft 1 move up and down, the hollow magnet 4 is always between the magnetic coupling active disc 8 and the solid magnet 3; the solid magnet 3 and the hollow magnet 4 have the same magnetic properties of adjacent magnetic poles. The self-power generation sterilization floor drain is fixed in the sewer, which can realize the switching between the sealing state and the drainage state. In the sealing state, the solid magnet 3 moves up to the bottom surface of the drain valve 2 based on the same repulsion, and in the process of continuing to move up, it pushes the hollow shaft 1 to move up and drives the drain valve 2 to move up to the sewer port, at this time, there is no gap at the sewer port, and the odor in the sewer cannot enter the room, completing the sealing state. In the drainage state, a large amount of water flow exists 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 flow extrudes the drain valve 2 to rotate and move down, at the same time, it drives the hollow shaft 1 to move down, and in the process of continuing to move down, it drives the drain valve 2 to move down away from the sewer port, at this time, there is a gap at the sewer port, so that the water flow passes through, and the water flow enters the sewer through the gap, completing the drainage state. In this embodiment, the magnetic suspension module selects N38 type permanent magnet, the solid magnet 3 is cylindrical, and its thickness is greater than that of the hollow magnet 4.

[0039] On the basis of the above sealing, in order to realize better sealing effect, the application sets a sealing device, please refer to Figure 4 The self-power generation sterilization floor drain is fixed in the sewer through the sealing device. The sealing device is arranged at the sewer port, which is downwardly open and has a containing cavity for accommodating the drain valve 2, and the side wall of the drain valve 2 extends outwardly to form a sealing plate 20. In the sealing state, the drain valve 2 completely enters the containing cavity, and the sealing plate 20 is buckled on the bottom of the sealing device, at this time, there is no gap, and the containing cavity is isolated from the sewer through the sealing plate 20 and the drain valve 2, preventing the odor from rising. In the drainage state, the drain valve 2 completely moves out of the containing cavity, and the sealing plate 20 forms a gap with the bottom of the sealing device, so that the water flow passes through the gap and flows into the sewer, completing the drainage. In this embodiment, the sealing device includes a sealing column 18 which is open at the upper and lower surfaces, a connecting rod 19 which extends downwardly from the side wall of the sealing column 18, and the upper end of the shell 5 is connected with the lower end of the connecting rod 19. In the process of moving the drain valve 2 up and down, the sealing column 18 of the sealing device is fixed at the sewer port, and the shell 5 of the floor drain is fixed through the connecting rod 19, so that the bottom surface of the drain valve 2 and the shell 5 always keep a certain distance when the drain valve 2 moves, and there is a space for a large amount of water flow to pass through, which is convenient for the rapid discharge of water.

[0040] In the embodiment, the hollow magnet 4 and the first coil set 10 are fixed inside the shell 5 through the fixing support 21. The second coil set 11 is externally provided with a protective shell. 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.

[0041] The preferred embodiment of the application is described in detail above in combination with the drawings, but the application is not limited thereto. Within the technical concept of the application, various simple modifications can be made to the technical solutions of the application, for example, the first coil set 10 and the second coil set 11 can be changed from being connected in series to being connected in parallel, the number of coils and the number of windings of the first coil set 10 can be changed, and so on. Each specific technical feature can be combined in any suitable manner, for example, the sealing device and the magnetic suspension module can be used simultaneously. In order to avoid unnecessary repetition, the application will not describe various possible combinations again. However, these simple modifications and combinations should also be considered as disclosed content of the application and belong to the protection scope of the application.

Claims

1. A self-generating sterilizing floor drain, characterized in that, Includes a control device, a drain valve (2), a housing (5), a sterilization device fixed on the housing (5), a hollow shaft (1) extending downward from the lower surface of the drain valve (2) into the housing (5), a magnetic coupler active disk (8) connected to the lower end of the hollow shaft (1), a magnetic coupler driven disk (9) extending upward from the bottom of the housing (5), and a first coil group (10) fixed around the magnetic coupler driven disk (9); The driven disk (9) of the magnetic coupler is arranged opposite to the driven disk (8) of the magnetic coupler, and the driven disk (9) of the magnetic coupler is rotatably connected to the bottom of the housing (5) through a rotating shaft (12); the upper surface of the drain valve (2) extends upward with several blades (6), and the blades (6) are centrally symmetrical; When water flows through the drain valve (2), it drives the blade (6) to rotate, which in turn drives the magnetic coupler drive disk (8) to rotate via the hollow shaft (1), which in turn drives the magnetic coupler driven disk (9) to rotate. The first coil group (10) then cuts the magnetic field lines of the magnetic coupler driven disk (9), generating electrical energy. 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 supply electrical energy to the sterilization device. The self-generating sterilizing floor drain also includes a magnetic levitation module, which includes a solid magnet (3) and a hollow magnet (4). The solid magnet (3) is embedded inside the hollow shaft (1) and close to the drain valve (2). The hollow magnet (4) is fixed to the inner wall of the housing (5) and hollowed out in the center to allow the hollow shaft (1) to move up and down. The hollow magnet (4) is always positioned between the magnetic coupler active disk (8) and the solid magnet (3). The adjacent magnetic poles of the solid magnet (3) and the hollow magnet (4) have the same magnetism. The self-generating sterilizing floor drain is fixed inside the sewer, including a sealed state and a draining state. In the sealed state, the solid magnet (3) pushes the hollow shaft (1) upward based on the repulsion of like poles, thereby driving the drain valve (2) upward to the sewer opening. In the draining state, the water flow squeezes the hollow shaft (1) downward, thereby driving the drain valve (2) downward to a position away from the sewer opening. The self-generating sterilizing floor drain is fixed in the sewer by a sealing device. The sealing device is located at the sewer opening, opens downwards, and forms a cavity inside to accommodate the drain valve (2). A sealing plate (20) extends outwards from the side wall of the drain valve (2). In the sealed state, the drain valve (2) is completely inserted into the cavity, and the sealing plate (20) is fastened to the bottom of the sealing device. In the draining state, the drain valve (2) is completely removed from the cavity, and a gap is formed between the sealing plate (20) and the bottom of the sealing device.

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

3. The self-generating sterilizing floor drain according to claim 1, characterized in that, The housing (5) is also provided with a second coil group (11) and a third magnet (13). 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. When the drain valve (2) drives the driven disk (9) of the magnetic coupler to rotate, it drives the third magnet (13) to rotate through the rotating shaft (12), and the second coil group (11) cuts the magnetic field lines of the third magnet (13), generating electrical energy and transmitting it to the control device.

4. The self-generating sterilizing floor drain according to claim 3, 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, The housing (5) is also provided with a magnet housing (14) with a bushing. The magnet housing (14) with a bushing is fixed to the bottom of the housing (5). The end of the rotating shaft (12) away from the driven disk (9) of the magnetic coupler is movably connected to the bushing. The magnet housing surrounds the third magnet (13) in a circumferential direction. The second coil group (11) is disposed on the magnet housing.

6. The self-generating sterilizing floor drain according to claim 1, characterized in that, The sealing device includes a sealing post (18) with openings on both the upper and lower surfaces, and a connecting rod (19) extending downward from the side wall of the sealing post (18). The upper end of the housing (5) is connected to the lower end of the connecting rod (19).

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

8. The self-generating sterilizing floor drain according to claim 1, characterized in that, The drain valve (2) is hemispherical and has a raised upper surface; several blades (6) are radially distributed along the drain valve (2).

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

10. The self-generating sterilizing floor drain according to claim 1, characterized in that, The magnetic coupler active disk (8) includes a main body and at least one first magnet pair disposed at the bottom of the main body, the first magnet pair including two first magnets with opposite magnetic poles and symmetrically arranged; the magnetic coupler driven disk (9) includes a driven body and at least one second magnet pair disposed at the top of the driven body, the second magnet pair including two second magnets with opposite magnetic poles and symmetrically arranged; and at least one of the first magnet pairs coincides with one of the second magnet pairs 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.

11. The self-generating sterilizing floor drain according to claim 10, characterized in that, The number of the first magnet pair and the second magnet pair are the same.

12. The self-generating sterilizing floor drain according to claim 11, characterized in that, The first magnet is centrally symmetrically distributed, and the magnetic coupler active disk (8) and the magnetic coupler driven disk (9) are exactly the same.

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