Magnetic suspension deodorization floor drain inner core

Abstract

A magnetic suspension deodorization floor drain inner core comprises a drainage pipe, a guide pipe is arranged in the center of the drainage pipe, a guide rod is vertically and movably installed in the guide pipe, and a sealing valve is installed at the bottom of the guide rod. A first magnet is installed in the guide pipe, a second magnet is installed on the guide rod, the magnetic poles of the opposite faces of the first magnet and the second magnet are the same, and repulsive force is generated between the first magnet and the second magnet, so that the guide rod is kept at the upward position when no external force exists, the sealing valve is driven to cover the lower end opening of the drainage pipe for sealing, and stink backflow is prevented.

Description

Technical Field

[0001] This utility model relates to a bathroom product, specifically a magnetic levitation odor-proof floor drain core. Background Technology

[0002] Floor drains are an indispensable component of modern building drainage systems, primarily functioning to drain wastewater from areas such as bathrooms, kitchens, and basements. In addition to basic drainage, floor drains must also prevent sewer gases from flowing back into the room. These gases, such as methane and hydrogen sulfide, not only produce unpleasant odors but can also pose a threat to human health. Therefore, an effective odor-proof mechanism is crucial in floor drain design.

[0003] Traditional floor drains typically use a water seal principle to prevent the backflow of sewer gases. This method involves installing a U-shaped pipe or other similar structure in the drain pipe to retain a certain amount of water, forming a water seal barrier. As long as the water seal exists, gases cannot pass through this barrier to enter the room, thus effectively preventing odors from escaping.

[0004] However, the water seal principle has significant drawbacks. Its odor-preventing effect is highly dependent on the regular replenishment of water. In certain usage scenarios, such as guest bathrooms or seasonally used homes, the drain may not be used for extended periods, causing the water in the U-shaped pipe to gradually evaporate. Once the water seal dries up, the barrier fails, and sewer gases can enter the room through the drainpipe, causing unpleasant odors and even health hazards. Furthermore, in hot or dry climates, the evaporation rate accelerates further, exacerbating this problem. Users often only notice the water seal failure when an odor appears, by which time the problem has already occurred, thus necessitating further improvements. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a magnetic levitation odor-proof floor drain core that is simple in structure, easy to use, and can maintain effective odor prevention without relying on a water seal, thereby completely eliminating the risk of seal failure caused by water seal evaporation.

[0006] The purpose of this utility model is achieved in the following way: a magnetic levitation odor-proof floor drain core, which includes a drain pipe, a guide pipe is provided at the center of the drain pipe, a guide rod is vertically and movably installed inside the guide pipe, and a sealing valve is installed at the bottom of the guide rod;

[0007] A first magnet is installed inside the guide tube, and a second magnet is installed on the guide rod. The opposing magnetic poles of the first magnet and the second magnet are set to be the same. The first magnet and the second magnet generate a repulsive force, which keeps the guide rod in an upward position when there is no external force, thereby driving the sealing valve to cover the lower end of the drain pipe for sealing and preventing the backflow of odor.

[0008] Furthermore: the first magnet is installed at the bottom of the guide tube, and the second magnet is installed at the top of the guide rod, with the two arranged vertically at intervals to form a sliding space.

[0009] Furthermore, the guide tube is a bottomed tubular structure with a guide hole at the bottom, through which the guide rod passes into the guide tube.

[0010] Furthermore: the first magnet is a ring-shaped permanent magnet, which is fitted onto the upper end face of the guide hole and located at the bottom of the guide tube.

[0011] Furthermore, the second magnet is a ring-shaped permanent magnet, which is fitted onto the top of the guide rod and located on the outer cylindrical surface of the guide rod.

[0012] Furthermore, the second magnet is a permanent magnet embedded inside the guide rod and close to the top of the guide rod.

[0013] Furthermore, a limiting seat is installed at the top of the guide rod, the diameter of which is larger than the diameter of the guide hole, thereby limiting the axial displacement stroke of the guide rod.

[0014] Furthermore: the top of the guide tube is covered with an end cap, and a third magnet is provided at the bottom of the end cap. The third magnet attracts the second magnet or the guide rod, driving the guide rod to move upward.

[0015] Furthermore, the sealing valve is a cone shape that is larger at the top and smaller at the bottom, and the maximum diameter of the sealing valve is larger than the diameter of the drain pipe.

[0016] Furthermore, the outer cylinder of the guide tube is connected to the drain pipe by several stiffening plates, forming a drainage zone between the drain pipe and the guide tube.

[0017] The beneficial effects of this utility model are: 1. Simple structure, low production cost, and improved market competitiveness.

[0018] 2. This floor drain utilizes the magnetic repulsion between the first and second magnets to push the guide rod upwards when there is no water flow. This causes the sealing valve to cover the lower end of the drain pipe, effectively preventing sewer odors from flowing back into the room. Unlike traditional floor drains that rely on a water seal, this design achieves odor prevention without a water seal, avoiding seal failure caused by water evaporation and providing greater reliability.

[0019] 3. By employing a permanent magnet to achieve the sealing function, this invention reduces reliance on mechanical components. Traditional floor drain mechanical seals may fail due to wear or blockage, while water seals require regular water replenishment to maintain their effectiveness. In contrast, this invention's magnetic levitation design has no easily worn moving parts and eliminates the need for frequent cleaning or parts replacement, thus significantly reducing maintenance costs and the burden of use.

[0020] 4. This device features automatic opening and closing. When water flows through, the weight of the water is sufficient to overcome the magnetic repulsion, causing the guide rod to move downwards and open the sealing valve for smooth drainage. After the water flow stops, the magnetic force quickly returns the guide rod to the upward position, resealing the drain pipe. This water flow-triggered automatic operation is both efficient and convenient, requiring no manual intervention.

[0021] 5. A third magnet is installed at the end cap at the top of the guide tube, which assists the guide rod to move upward through the attraction between the magnet and the second magnet. This dual magnetic system, combining the repulsive force below and the attractive force above, further enhances the closing effect of the sealing valve, ensuring stronger odor prevention performance, and exhibiting higher stability, especially in complex operating environments.

[0022] 6. The sealing valve adopts a conical structure that is larger at the top and smaller at the bottom, with its maximum diameter exceeding the diameter of the drain pipe. This design not only improves the tightness of the seal but also helps guide water flow during drainage, reducing flow resistance and improving drainage efficiency. Attached Figure Description

[0023] Figure 1 This is an assembly rendering of the present invention and the base of the floor drain.

[0024] Figure 2 This is an exploded view of the base of the drain and the present invention.

[0025] Figure 3 This is a cross-sectional view of the overall assembly structure of the base of the drain and the present invention. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings. A magnetic levitation odor-proof floor drain inner core includes a drain pipe 2, which is connected to a receiving cavity 11. A guide pipe 3 is provided at the center of the drain pipe 2, and a guide rod 4 is vertically and movably installed inside the guide pipe 3. A sealing valve 5 is installed at the bottom of the guide rod 4.

[0027] A first magnet 6 is installed inside the guide tube 3, and a second magnet 7 is installed on the guide rod 4. The magnetic poles of the opposite surfaces of the first magnet 6 and the second magnet 7 are set to be the same. A repulsive force is generated between the first magnet 6 and the second magnet 7, which pushes the guide rod 4 to move upward all the time, thereby causing the sealing valve 5 to always cover the lower end of the drain pipe 2 for sealing and preventing the backflow of odor.

[0028] In this embodiment, the inner core needs to be connected to the base 1 of the drain. The top of the base 1 is recessed downward to form a receiving cavity 11, and the bottom of the receiving cavity 11 has a drain outlet 13. The drain pipe of the odor-proof inner core is connected to the drain outlet 13. The guide tube 3 is fixed in the center of the drain pipe 2, and the guide rod 4 can move up and down inside the guide tube 3. The sealing valve 5 at the bottom of the guide rod 4 is used to close the lower port of the drain pipe 2. The first magnet 6 inside the guide tube 3 and the second magnet 7 on the guide rod 4 have the same magnetic poles, for example, both are N poles or S poles facing each other. According to the principle of magnetic repulsion, the two generate a repulsive force. When there is no water flow, this repulsive force pushes the guide rod 4 upward, so that the sealing valve 5 is pressed tightly against the lower port of the drain pipe 2, forming a physical barrier to prevent the backflow of sewer odor. When water flows into the accommodating cavity 11, the pressure and gravity of the water flow overcome the repulsive force, causing the guide rod 4 to move downward, the sealing valve 5 to open, and the water flow to be discharged through the drain pipe 2; after the water flow stops, the magnetic force restores the guide rod 4 to its initial position, and it is resealed.

[0029] Compared to traditional water-sealed floor drains, this design utilizes magnetic force for sealing, eliminating the need for water replenishment and avoiding the problem of water seal evaporation failure. Simultaneously, the magnetically driven automatic reset mechanism ensures the sealing valve closes quickly after drainage, improving odor prevention efficiency. Furthermore, using magnets to achieve functionality reduces complex mechanical parts, lowering the failure rate and maintenance requirements.

[0030] In one embodiment, the first magnet 6 is installed at the bottom of the guide tube 3, and the second magnet 7 is installed at the top of the guide rod 4, with the two arranged vertically at intervals to form a sliding space. In use, the first magnet 6 is fixed to the bottom of the guide tube 3, and the second magnet 7 is fixed to the top of the guide rod 4, arranged vertically opposite each other and maintaining a certain distance to form the sliding space. This space allows the guide rod 4 to move up and down under the action of magnetic force. When there is no water flow, the repulsive force between the first magnet 6 and the second magnet 7 keeps the guide rod 4 in a higher position, and the sealing valve 5 closes the drain pipe 2; when water flows, the guide rod 4 moves downward within the sliding space, opening the drainage channel.

[0031] In this embodiment, the vertical spacing design ensures smooth movement of the guide rod 4 and avoids excessive resistance caused by magnets being too close together. Meanwhile, the fixed-position magnet layout ensures the continuity and consistency of the repulsive force, improving sealing reliability.

[0032] In one embodiment, the guide tube 3 is a bottomed tubular structure with a guide hole 31 at its lower bottom. The guide rod 4 passes through this guide hole 31 and enters the guide tube 3. The guide tube 3 is designed as a bottomed tubular structure with a guide hole 31 at its lower bottom. The guide rod 4 is inserted into the guide tube 3 through the guide hole 31, which restricts the lateral movement of the guide rod 4, ensuring that it only moves vertically. Under the action of magnetic force, the guide rod 4 slides up and down within the guide tube 3, driving the sealing valve 5 to complete the opening and closing action.

[0033] In this embodiment, the guide hole 31 provides a stable motion trajectory, prevents the guide rod 4 from deviating, and ensures that the sealing valve 5 accurately covers the drain pipe 2.

[0034] In one embodiment, the first magnet 6 is a ring-shaped permanent magnet, which is fitted onto the upper end face of the guide hole 31 and located at the bottom of the guide tube 3.

[0035] The first magnet 6 is a ring-shaped permanent magnet, fitted onto the upper end face of the guide hole 31, located at the bottom of the guide tube 3. The ring design allows the guide rod 4 to pass through its center, and the uniform repulsive force generated by the magnet acts on the second magnet 7 on the guide rod 4. When there is no water flow, the repulsive force pushes the guide rod 4 upward; when water flow is present, the guide rod 4 slides in the center of the ring magnet. In this embodiment, the ring magnet provides a stable magnetic force distribution, improving the smoothness of the movement of the guide rod 4.

[0036] In one embodiment, the second magnet 7 is a ring-shaped permanent magnet, which is fitted onto the top of the guide rod 4 and located on the outer cylindrical surface of the guide rod 4. The second magnet 7 is a ring-shaped permanent magnet, fitted onto the top outer cylindrical surface of the guide rod 4, opposite to the first magnet 6. The repulsive force between the two magnets pushes the guide rod 4 upward, causing the sealing valve 5 to seal the drain pipe 2. The ring-shaped design ensures that the magnetic force is evenly applied to the guide rod 4.

[0037] In one embodiment, the second magnet 7 is a permanent magnet embedded inside the guide rod 4, near the top of the guide rod 4. In this embodiment, the second magnet 7, embedded inside the guide rod 4 near the top, generates a repulsive force with the first magnet 6, pushing the guide rod 4 upward. The embedding method integrates the magnet and the guide rod 4 as one unit, acting synchronously on the sealing valve 5 during movement. In this embodiment, the embedding design reduces the risk of magnet loosening and improves durability. Simultaneously, internal installation saves external space, making it suitable for compact designs.

[0038] In one embodiment, a limiting seat 8 is installed on the top of the guide rod 4. The diameter of the limiting seat 8 is larger than the diameter of the guide hole 31, thus limiting the axial displacement stroke of the guide rod 4. The limiting seat 8 is installed on the top of the guide rod 4, and its diameter is larger than the guide hole 31, thus limiting the upward movement range of the guide rod 4. When the magnetic force pushes the guide rod 4 upward, the limiting seat 8 stops moving when it contacts the guide hole 31, preventing the guide rod 4 from disengaging from the guide tube 3.

[0039] In one embodiment, the top of the guide tube 3 is covered with an end cap 9, and a third magnet 71 is disposed at the bottom of the end cap 9. The third magnet 71 attracts the second magnet 7 or the guide rod 4, driving the guide rod 4 to move upward. The magnetic poles of the third magnet 71 and the second magnet 7 are opposite, for example, one is the N pole and the other is the S pole, generating an attractive force to assist the guide rod 4 in moving upward and enhance the closing effect of the sealing valve 5. Combined with the repulsive force of the first magnet 6, a dual magnetic force is formed. In this embodiment, the dual magnetic force, the attractive force and the repulsive force work together to significantly improve the sealing effect and maintain high-efficiency odor prevention performance even in complex environments.

[0040] In one embodiment, the sealing valve 5 is a cone shape, wider at the top and narrower at the bottom, with its maximum diameter greater than that of the drain pipe 2. When there is no water flow, the guide rod 4 causes the sealing valve 5 to rise, and the conical bottom embeds into the lower port of the drain pipe 2, forming a tight seal. During drainage, the water flows smoothly down the conical surface. The conical structure ensures a tighter fit, improving odor prevention. Simultaneously, the sloping design reduces water flow resistance and improves drainage efficiency.

[0041] In one embodiment, the outer cylinder of the guide pipe 3 is connected to the drain pipe 2 by a number of stiffening plates 32, forming a drainage area between the drain pipe 2 and the guide pipe 3.

[0042] In this embodiment, the guide tube 3 is fixed inside the drain pipe 2 by stiffeners 32, and the gap between the stiffeners 32 forms a drainage area. Water flows into the drainage area from the receiving cavity 11 and is discharged through the drain pipe 2. The guide tube 3 remains in a stable position to ensure that the guide rod 4 and the sealing valve 5 work normally.

[0043] In summary, the magnetic levitation odor-proof floor drain in this case achieves basic drainage function through the base 1, the receiving cavity 11, and the drain pipe 2. Its core lies in the magnetically driven sealing mechanism. The repulsive force between the first magnet 6 inside the guide pipe 3 and the second magnet 7 on the guide rod 4 pushes the guide rod 4 upwards when there is no water flow, causing the sealing valve 5 to close the drain pipe 2 and prevent odor backflow. During drainage, the water flow overcomes the magnetic force, causing the guide rod 4 to move downwards, opening the drainage channel. After the water flow stops, the magnetic force resets. This floor drain replaces the traditional water seal with magnetic levitation technology, combined with structural optimization, achieving a reliable, low-maintenance, and highly efficient odor-proof function, and therefore can be widely promoted and used.

[0044] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this utility model.

Claims

1. A magnetically levitated odor-proof floor drain core, characterized in that: It includes a drain pipe (2), a guide pipe (3) is provided at the center of the drain pipe (2), a guide rod (4) is vertically and movably installed inside the guide pipe (3), and a sealing valve (5) is installed at the bottom of the guide rod (4). The guide tube (3) is equipped with a first magnet (6) and the guide rod (4) is equipped with a second magnet (7). The magnetic poles of the first magnet (6) and the second magnet (7) are set to be the same on opposite sides. The first magnet (6) and the second magnet (7) generate a repulsive force, so that the guide rod (4) remains in an upward position when there is no external force, which drives the sealing valve (5) to cover the lower end of the drain pipe (2) for sealing and to prevent the backflow of odor.

2. The magnetic levitation odor-proof drain core according to claim 1, characterized in that: The first magnet (6) is installed at the bottom of the guide tube (3), and the second magnet (7) is installed at the top of the guide rod (4). The two are distributed vertically to form a sliding space.

3. The magnetic levitation odor-proof drain core according to claim 1, characterized in that: The guide tube (3) is a bottomed tubular structure. A guide hole (31) is provided at the bottom of the guide tube (3). The guide rod (4) passes through the guide hole (31) and enters the guide tube (3).

4. The magnetic levitation odor-proof drain core according to claim 3, characterized in that: The first magnet (6) is a ring-shaped permanent magnet. The first magnet (6) is fitted on the upper end face of the guide hole (31) and located at the bottom of the guide tube (3).

5. The magnetic levitation odor-proof drain core according to claim 3, characterized in that: The second magnet (7) is a ring-shaped permanent magnet. The second magnet (7) is fitted on the top of the guide rod (4) and located on the outer cylindrical surface of the guide rod (4).

6. The magnetic levitation odor-proof drain core according to claim 3, characterized in that: The second magnet (7) is a permanent magnet embedded inside the guide rod (4) and close to the top of the guide rod (4).

7. The magnetic levitation odor-proof drain core according to claim 3, characterized in that: A limiting seat (8) is installed on the top of the guide rod (4). The diameter of the limiting seat (8) is larger than the diameter of the guide hole (31), which limits the axial displacement stroke of the guide rod (4).

8. The magnetic levitation odor-proof drain core according to claim 1, characterized in that: The top of the guide tube (3) is covered with an end cap (9), and a third magnet (71) is provided at the bottom of the end cap (9). The third magnet (71) attracts the second magnet (7) or the guide rod (4) to drive the guide rod (4) to move upward.

9. The magnetic levitation odor-proof drain core according to claim 1, characterized in that: The sealing valve (5) is a cone shape with a larger top and a smaller bottom, and the maximum diameter of the sealing valve (5) is larger than the diameter of the drain pipe (2).

10. The magnetic levitation odor-proof drain core according to claim 1, characterized in that: The outer cylinder of the guide pipe (3) is connected to the drain pipe (2) by several reinforcing plates (32), forming a drainage area between the drain pipe (2) and the guide pipe (3).

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