Deodorizing floor drain structure

Abstract

The utility model relates to the technical field of floor drains, and particularly discloses an odor-resistant floor drain structure which comprises a floor drain shell, a top surface cover of the floor drain shell is provided with a filter component, an outer discharge pipeline is sleeved below the floor drain shell, a first sealing layer is arranged between the outer discharge pipeline and the floor drain shell, an inner discharge pipeline is detachably arranged in the outer discharge pipeline, and a second sealing layer is arranged between the inner discharge pipeline and the floor drain shell. The upper end of the inner drainage pipeline extends into the floor drain shell, a second sealing layer is arranged between the inner drainage pipeline and the floor drain shell, the top face of the inner drainage pipeline is covered with a water stop cover plate, a buoyancy ring is arranged on the outer edge of the bottom of the water stop cover plate, the inner diameter of the buoyancy ring is larger than the diameter of the inner drainage pipeline, and an anti-deviation assembly is arranged below the water stop cover plate. The floor drain is simple in structure and high in practicability, the drainage channel is closed through the liquid seal, peculiar smell backflow is avoided, the deodorization function is achieved, maintenance is convenient, overall replacement is not needed, ceramic tiles around the floor drain are effectively prevented from being damaged, and unnecessary cost and time consumption are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of floor drain technology, specifically relating to an odor-proof floor drain structure. Background Technology

[0002] A floor drain is a drainage device that connects the drainage pipe system to the indoor floor. As an important component of the drainage system in a residence, its performance directly affects indoor air quality and is crucial for controlling odors in the bathroom. Therefore, modern families generally prefer to use odor-proof floor drains instead of traditional ordinary floor drains.

[0003] Current odor-proof floor drain designs typically include a housing with an internal drainage channel that directs floor moisture into the drainage pipe system. Inside the drainage channel are a sealing plate and a spring. When water flows through the drain, the impact causes the sealing plate to move, and the spring deforms, opening the drainage channel and allowing wastewater to flow smoothly into the pipes. When drainage stops, the spring's elasticity pushes the sealing plate back to its original position, tightly sealing the drainage channel and effectively preventing odors from flowing back into the room, thus achieving the odor-proof function.

[0004] However, the springs in these types of odor-proof floor drains are prone to aging after prolonged use. As the springs age, their elasticity weakens, and their deformation capacity decreases, leading to two problems: first, the sealing plate moves less during drainage, affecting drainage efficiency; second, the sealing plate cannot completely seal the channel after drainage stops, resulting in poor odor prevention. More importantly, because the spring is installed inside the drainage channel, and the floor drain is usually embedded in the floor, the spring is difficult to access and cannot be replaced individually. Once the spring fails, the entire floor drain needs to be replaced, requiring it to be pried out of the floor, a very troublesome operation that can easily damage the surrounding tiles, adding unnecessary costs and time.

[0005] Therefore, we propose an odor-proof floor drain structure to solve the above-mentioned technical problems. Utility Model Content

[0006] In order to solve the technical problems existing in the prior art, this utility model proposes an odor-proof floor drain structure.

[0007] The technical solution adopted in this utility model is as follows:

[0008] An odor-proof floor drain structure includes a floor drain housing, a filter assembly on the top cover of the floor drain housing, an external drain pipe fitted under the floor drain housing, a first sealing layer between the external drain pipe and the floor drain housing, an internal drain pipe detachably installed inside the external drain pipe, the upper end of the internal drain pipe extending into the floor drain housing, a second sealing layer between the internal drain pipe and the floor drain housing, a water-stop cover plate on the top cover of the internal drain pipe, a buoyancy ring on the bottom outer edge of the water-stop cover plate, the inner diameter of the buoyancy ring being larger than the diameter of the internal drain pipe, and an anti-deviation assembly below the water-stop cover plate.

[0009] In a further technical solution, a support ring is provided on the inner wall of the external discharge pipe, and a limit ring is provided on the outer wall of the internal discharge pipe. The internal discharge pipe passes through the support ring and is installed on the support ring through the limit ring.

[0010] In a further technical solution, threads are provided on both the inner side of the support ring and the outer side of the inner drain pipe, and the inner drain pipe is threadedly installed on the support ring.

[0011] In a further technical solution, the filter assembly includes an upper filter plate and a lower filter plate, both of which are matched with the top surface shape of the drain housing. Multiple strip-shaped filter ports are arranged parallel to each other on both the upper and lower filter plates. The upper and lower filter plates are arranged overlappingly, and an angle is provided between the strip-shaped filter ports on the upper and lower filter plates.

[0012] In a further technical solution, the upper filter and the lower filter are shaped as a rectangle, a square, or a circle.

[0013] In a further technical solution, a positioning rod is provided in the middle of the lower part of the upper filter sheet, and a circular hole that cooperates with the positioning rod is provided in the middle of the lower filter sheet.

[0014] In a further technical solution, the filter assembly includes an upper filter cover and a lower filter cover, both of which are hemispherical. Multiple long filter ports are provided parallel to each other on both the upper and lower filter covers. The upper filter cover is rotatably installed inside the lower filter cover, and a fixing ring is provided on the outer edge of the top surface of the lower filter cover.

[0015] In a further technical solution, the anti-deviation component includes a connecting rod and a lower circular plate. The lower circular plate is connected to the bottom of the water-stop cover plate via the connecting rod, and a gap is provided between the outer edge of the lower circular plate and the inner wall of the inner drainage pipe.

[0016] In a further technical solution, both the first sealing layer and the second sealing layer are sealing rubber rings.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0018] 1. This utility model controls the raising and lowering of the water-stop cover plate by the buoyancy of water, thereby opening and closing the drainage channel. When the water level drops and drainage stops, although the liquid surface is above the water-stop cover plate, the buoyancy generated is insufficient to make the water-stop cover plate float, thus forming an effective liquid seal state, thereby effectively preventing odor backflow and achieving the odor prevention function.

[0019] 2. The repair work of this utility model is extremely simple. If odor problems occur due to the deterioration of sealing performance during long-term use, it is only necessary to remove the inner drain pipe from the opening on the top surface of the drain shell and rearrange the second sealing layer between the drain shell and the inner drain pipe. Compared with the traditional spring-type anti-odor drain, this design is not only simple in structure and highly practical, but also fundamentally solves the problem of reduced drainage efficiency and weakened anti-odor effect caused by the decrease in spring deformation capacity. At the same time, its maintenance process is greatly simplified, and there is no need to replace the whole thing, which effectively avoids damage to the tiles around the drain and reduces unnecessary costs and time consumption.

[0020] 3. This utility model is composed of an upper filter plate and a lower filter plate that are overlapped and combined. The strip-shaped filter ports on them intersect each other at a specific angle to form a number of filter holes. When the shape is designed to be circular, the size of the combined filter holes can be rotated and adjusted according to actual needs to achieve the most suitable filtration effect. When the ends are open, if there are a lot of debris such as hair wrapped around them, the upper filter plate and the lower filter plate can be removed and the ends can be scraped off and cleaned, which simplifies the cleaning process and improves practicality.

[0021] 4. The anti-offset component of this utility model, through the cooperation of the connecting rod and the lower circular plate, when offset occurs, the lower circular plate abuts against the inner wall of the inner drain pipe, limiting the angle of offset and preventing the water-stop cover from offsetting too much. This ensures that the water-stop cover can be accurately placed on the top surface of the inner drain pipe, thereby achieving the function of preventing odor. Attached Figure Description

[0022] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of one embodiment of the filter assembly of this utility model;

[0025] Figure 3 This is a schematic diagram of one embodiment of the filter assembly of this utility model;

[0026] Figure 4 This is a schematic diagram of one embodiment of the filter assembly of this utility model;

[0027] Figure 5 This is a schematic diagram of one embodiment of the filter assembly of this utility model.

[0028] Reference numerals in the attached drawings: 1-Drain housing, 2-External drain pipe, 3-First sealing layer, 4-Internal drain pipe, 5-Second sealing layer, 6-Water-stop cover, 7-Buoyancy ring, 8-Support ring, 9-Limiting ring, 10-Thread, 11-Upper filter plate, 12-Lower filter plate, 13-Strip filter port, 14-Positioning rod, 15-Round hole, 16-Upper filter cover, 17-Lower filter cover, 18-Long filter port, 19-Fixing ring, 20-Connecting rod, 21-Lower circular plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] See Figure 1 This utility model provides an odor-proof floor drain structure, including a floor drain housing 1. The top cover of the floor drain housing 1 is provided with a filter assembly. An external drain pipe 2 is sleeved on the bottom of the floor drain housing 1. A first sealing layer 3 is provided between the external drain pipe 2 and the floor drain housing 1. An internal drain pipe 4 is detachably provided inside the external drain pipe 2. The upper end of the internal drain pipe 4 extends into the floor drain housing 1. A second sealing layer 5 is provided between the internal drain pipe 4 and the floor drain housing 1. A water-stop cover plate 6 is provided on the top cover of the internal drain pipe 4. A buoyancy ring 7 is provided on the bottom outer edge of the water-stop cover plate 6. The inner diameter of the buoyancy ring 7 is larger than the diameter of the internal drain pipe 4. An anti-deviation assembly is provided below the water-stop cover plate 6.

[0031] First, during installation, the external drain pipe 2 needs to be connected to the pre-embedded drainage pipe and sealed properly. It is important to note that the height of the pre-embedded drainage pipe needs to be adjusted according to the site conditions to ensure that the drain is slightly lower than the ground level after installation, thus ensuring smooth drainage. Next, the drain housing 1 is installed inside the external drain pipe 2, and the first sealing layer 3 is used to ensure a tight seal between the drain housing 1 and the external drain pipe 2. Then, the internal drain pipe 4 is installed inside the external drain pipe 2 through the opening on the top surface of the drain housing 1, and the second sealing layer 5 is used to ensure a tight seal between the drain housing 1 and the internal drain pipe 4. Finally, in the same manner, the water-stop cover 6 is placed on top of the internal drain pipe 4 through the opening on the top surface of the drain housing 1, and the anti-displacement component is placed inside the internal drain pipe 4 to prevent the water-stop cover 6 from shifting during drainage. Finally, the filter assembly is placed on top of the drain housing 1, thus completing the installation of this odor-proof drain structure. (It should be noted that the sand and gravel laying, mortar pouring, and floor tile laying involved in the drain installation process are all the same as conventional techniques in existing technologies, so they will not be described in detail here.) The working principle of this odor-proof drain structure is as follows:

[0032] When sewage enters the drain housing 1 from the filter assembly, drainage is impossible due to the seal between the drain housing 1 and the internal drain pipe 4, and the water-stop cover 6 covering the top surface of the internal drain pipe 4. As a result, sewage gradually accumulates within the drain housing 1. With the increase in water volume, the buoyancy force exerted by the water on the buoyancy ring 7 also increases until it exceeds the combined weight of the water-stop cover 6, the buoyancy ring 7, and the anti-deviation assembly. The water-stop cover 6 then rises with the rising water level. At this point, the opening on the top surface of the internal drain pipe 4 opens, allowing sewage to drain smoothly. Conversely, as the water volume decreases, the water-stop cover 6 descends with the falling water level until it covers the opening on the top surface of the internal drain pipe 4 again, closing the drainage channel. It is noteworthy that even after the drainage channel is closed, some water remains inside the drain housing 1. Although its surface is above the water-stop cover 6, the buoyancy generated is insufficient to make the water-stop cover 6 float, thus creating an effective liquid seal. This effectively prevents odor backflow and achieves the odor-proof function. Furthermore, if odor problems arise due to a decline in sealing performance during long-term use, the repair of this odor-proof floor drain structure is extremely simple. It only requires removing the inner drain pipe 4 from the opening on the top surface of the drain housing 1 and rearranging the second sealing layer 5 between the drain housing 1 and the inner drain pipe 4. Compared to traditional spring-type odor-proof floor drains, this design is not only simple in structure and highly practical, but also fundamentally solves the problem of reduced drainage efficiency and weakened odor-proof effect caused by a decrease in spring deformation capacity. At the same time, its maintenance process is greatly simplified, eliminating the need for complete replacement, effectively avoiding damage to the tiles around the drain, and reducing unnecessary costs and time.

[0033] In one specific implementation, see Figure 1 A support ring 8 is provided on the inner wall of the external discharge pipe 2, and a limit ring 9 is provided on the outer wall of the internal discharge pipe 4. The internal discharge pipe 4 passes through the support ring 8 and is installed on the support ring 8 through the limit ring 9.

[0034] The support ring 8 on the inner wall of the external drainage pipe 2 provides a support point for the limiting ring 9 on the outer wall of the internal drainage pipe 4, effectively preventing the internal drainage pipe 4 from moving downward in the vertical direction. This not only ensures that the drainage system can maintain its stable drainage operation, but also reduces the difficulty of installing and disassembling the internal drainage pipe 4, simplifies the operation process, and effectively improves work efficiency.

[0035] In one specific implementation, see Figure 1 The inner side of the support ring 8 and the outer side of the inner drain pipe 4 are both provided with threads 10, and the threads 10 of the inner drain pipe 4 are installed on the support ring 8.

[0036] The inner drain pipe 4 is installed on the support ring 8 by means of threaded connection 10, which improves the connection stability between the inner drain pipe 4 and the outer drain pipe 2, further ensuring that the inner drain pipe 4 will not move downward, and ensuring the stable operation of the drainage system.

[0037] In one specific implementation, see Figures 1-5 The filter assembly includes an upper filter 11 and a lower filter 12. The upper filter 11 and the lower filter 12 are both matched with the top surface shape of the drain housing 1. Multiple strip-shaped filter ports 13 are arranged parallel to each other on the upper filter 11 and the lower filter 12. The upper filter 11 and the lower filter 12 are arranged overlappingly, and there is an included angle between the strip-shaped filter ports 13 on the upper filter 11 and the lower filter 12. The shape of the upper filter 11 and the lower filter 12 is one of rectangle, square or circle.

[0038] The filter assembly is formed by overlapping upper filter plate 11 and lower filter plate 12, with strip-shaped filter openings 13 intersecting each other at a specific angle to form a plurality of filter holes. Specifically, when both the upper filter plate 11 and the lower filter plate 12 are designed to be rectangular or square, refer to... Figure 2 The strip-shaped filter outlets 13 are arranged in a vertically intersecting layout. When the upper filter plate 11 and lower filter plate 12 are designed to be circular, refer to... Figure 4 The upper filter plate 11 and the lower filter plate 12 can intersect each other at any angle. This flexibility allows users to adjust the size of the combined filter holes according to actual needs to achieve the most suitable filtration effect. It is worth mentioning that... (See also...) Figure 3 and Figure 4The upper filter 11 and the lower filter 12 have open ends in the strip-shaped filter ports 13. The advantage of this design is that when a lot of debris such as hair is entangled on them, the upper filter 11 and the lower filter 12 can be removed and their ends scraped off to clean them, which simplifies the cleaning process and improves practicality.

[0039] In one specific implementation, see Figures 1-4 A positioning rod 14 is provided in the middle of the lower part of the upper filter 11, and a round hole 15 that cooperates with the positioning rod 14 is provided in the middle of the lower filter 12.

[0040] The upper filter 11 is inserted into the circular hole 15 of the lower filter 12 via the positioning rod 14, which achieves precise positioning of the upper filter 11 and the lower filter 12. Moreover, when the upper filter 11 and the lower filter 12 are designed to be circular, they can be rotated more easily, which is beneficial for adjusting the size of the combined filter holes.

[0041] In one specific implementation, see Figure 5 The filter assembly includes an upper filter cover 16 and a lower filter cover 17. Both the upper filter cover 16 and the lower filter cover 17 are hemispherical. Multiple long filter ports 18 are arranged in parallel on both the upper filter cover 16 and the lower filter cover 17. The upper filter cover 16 is rotatably installed inside the lower filter cover 17. A fixing ring 19 is provided on the outer edge of the top surface of the lower filter cover 17.

[0042] This filter assembly design, through the cooperation of the upper filter cover 16 and the lower filter cover 17, not only allows for adjustment of the size of the combined filter holes, but also utilizes its trough-shaped structure to collect trapped debris. Compared to a flat floor drain, this prevents trapped debris from being scattered by the water flow, providing users with an efficient cleaning method. It is worth mentioning that, because this filter assembly has a similar structure to that of a kitchen sink filter, it can also be used for kitchen sink filtration with slight modifications.

[0043] In one specific implementation, see Figure 1 The anti-deviation component includes a connecting rod 20 and a lower circular plate 21. The lower circular plate 21 is connected to the bottom of the waterstop cover plate 6 via the connecting rod 20. A gap is provided between the outer edge of the lower circular plate 21 and the inner sidewall of the inner drain pipe 4.

[0044] The anti-offset component, through the cooperation of the connecting rod 20 and the lower circular plate 21, prevents the water-stop cover 6 from shifting too much, ensuring that the water-stop cover 6 can be accurately placed on the top surface of the internal drainage pipe 4, thereby achieving the odor-preventing function. Specifically, when offset occurs, the lower circular plate 21 abuts against the inner wall of the internal drainage pipe 4, limiting the angle of offset, thereby ensuring that the water-stop cover 6 can effectively cover the top surface of the internal drainage pipe 4, thus closing the drainage channel and achieving the odor-preventing function.

[0045] In one specific embodiment, both the first sealing layer 3 and the second sealing layer 5 are sealing rubber rings.

[0046] Both the first sealing layer 3 and the second sealing layer 5 use sealing rubber rings, which have good sealing performance, low replacement cost, and are beneficial to use.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An odor-proof floor drain structure, characterized in that, The utility model provides a floor drain, which comprises a floor drain shell (1), a filter assembly is arranged on the top cover of the floor drain shell (1), an outer discharge pipe (2) is arranged on the lower part of the floor drain shell (1), a first sealing layer (3) is arranged between the outer discharge pipe (2) and the floor drain shell (1), an inner discharge pipe (4) is detachably arranged in the inner part of the outer discharge pipe (2), the upper end of the inner discharge pipe (4) extends into the floor drain shell (1), a second sealing layer (5) is arranged between the inner discharge pipe (4) and the floor drain shell (1), a water stop cover plate (6) is arranged on the top cover of the inner discharge pipe (4), a buoyancy ring (7) is arranged on the bottom outer edge of the water stop cover plate (6), the inner diameter of the buoyancy ring (7) is larger than the diameter of the inner discharge pipe (4), and a deviation prevention assembly is arranged below the water stop cover plate (6).

2. The odor-resistant floor drain structure according to claim 1, wherein A support ring (8) is arranged on the inner side wall of the outer discharge pipe (2), a limiting ring (9) is arranged on the outer side wall of the inner discharge pipe (4), the inner discharge pipe (4) passes through the support ring (8) and is installed on the support ring (8) through the limiting ring (9).

3. The odor-resistant floor drain structure according to claim 2, wherein The inner side of the support ring (8) and the outer side of the inner discharge pipe (4) are both provided with threads (10), and the inner discharge pipe (4) is installed on the support ring (8) through the threads (10).

4. The odor control floor drain structure according to claim 1, wherein The filter assembly comprises an upper filter sheet (11) and a lower filter sheet (12), the upper filter sheet (11) and the lower filter sheet (12) are matched with the shape of the top surface of the floor drain shell (1), a plurality of strip-shaped filter openings (13) are arranged on the upper filter sheet (11) and the lower filter sheet (12) in parallel, the upper filter sheet (11) and the lower filter sheet (12) are arranged in an overlapping mode, and an included angle is arranged between the strip-shaped filter openings (13) on the upper filter sheet (11) and the lower filter sheet (12).

5. The odor control floor drain structure according to claim 4, wherein The shape of the upper filter sheet (11) and the lower filter sheet (12) is one of a rectangle, a square or a circle.

6. The odor control floor drain structure according to claim 4 or 5, wherein A positioning rod (14) is arranged on the middle part of the lower filter sheet (12), and a circular hole (15) matched with the positioning rod (14) is arranged on the middle part of the lower filter sheet (12).

7. The odor control floor drain structure according to claim 1, wherein The filter assembly comprises an upper filter cover (16) and a lower filter cover (17), the upper filter cover (16) and the lower filter cover (17) are both semispherical, a plurality of long filter openings (18) are arranged on the upper filter cover (16) and the lower filter cover (17) in parallel, the upper filter cover (16) is rotatably installed in the lower filter cover (17), and a fixing ring (19) is arranged on the outer edge of the top surface of the lower filter cover (17).

8. The odor control floor drain structure according to claim 1, wherein The deviation prevention assembly comprises a connecting rod (20) and a lower circular plate (21), the lower circular plate (21) is connected below the water stop cover plate (6) through the connecting rod (20), and a gap is arranged between the outer edge of the lower circular plate (21) and the inner side wall of the inner discharge pipe (4).

9. The odor control floor drain structure according to claim 1, wherein The first sealing layer (3) and the second sealing layer (5) are both sealing rubber rings.

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