High-temperature-resistant odor-resistant floor drain

The high-temperature resistant and odor-proof floor drain, designed with a three-stage filtration system and water seal structure, solves the problems of debris accumulation and odor diffusion, achieving efficient filtration and odor prevention, and improving the practicality and service life of the floor drain.

CN224173467UActive Publication Date: 2026-04-28NINGBO MEILUN PLASTIC IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO MEILUN PLASTIC IND CO LTD
Filing Date
2025-05-12
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing floor drains are difficult to clean when debris accumulates, and they can easily cause odorous gases to rise, affecting the lifespan and usability of the device.

Method used

It adopts a three-stage filtration system and water seal structure design, including a primary screen plate, a secondary plate and a bottom frame, combined with a guide plate and a discharge pipe to form a three-stage filtration and a water seal between the discharge pipe and the floor drain pipe to prevent the diffusion of odorous gases.

Benefits of technology

It achieves effective sewage filtration and odor prevention, improves the filtration performance and cleaning convenience of floor drains, extends service life, and keeps indoor air fresh.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a high-temperature-resistant odor-resistant floor drain, and belongs to the technical field of floor drain production. Comprising a top plate, the bottom of the top plate is fixedly connected with a floor drain pipe, the top end of the inner side of the floor drain pipe is fixedly connected with a clamping ring, the top of the clamping ring abuts against a secondary plate, a plurality of screen holes are formed in the secondary plate, the bottom of the secondary plate is in threaded connection with a bottom frame, and a plurality of filtering grooves are formed in the outer side of the bottom frame. A flow guide plate is fixedly connected to the inner side of the floor drain pipe and located at the bottom of the bottom frame; by arranging the guide plate, the support plate and the discharge pipe, the device can cover the top end of the discharge pipe through the guide plate, so that when odor gas in the discharge pipe flows into the floor drain pipe, a water seal space is formed between water at the bottom end of the floor drain pipe and the guide plate, and air holes only stay at the top end of the inner side of the guide plate; and therefore, the device has the deodorization performance, and the practicability of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of floor drain manufacturing technology, and in particular to a high-temperature resistant and odor-proof floor drain. Background Technology

[0002] A floor drain is a drainage device installed at the ground drain outlet. It is usually installed on the floor of areas such as bathrooms, kitchens, and balconies. When there is water accumulation, the floor drain can guide the water into the sewer pipe in time, preventing water from accumulating on the ground, preventing the ground from becoming slippery, and reducing the occurrence of safety accidents such as slipping.

[0003] The patent with publication number CN221878314U proposes a double-layer floor drain, including an upper floor drain, a floor drain core, a lower floor drain, and a floor drain connection; the upper floor drain is fixedly connected to the floor drain core, the lower floor drain is fixedly connected to the floor drain connection, and the floor drain core is fixedly connected to the lower floor drain. The upper floor drain includes an upper panel, an upper cover, an upper floor drain body, and a continuous baffle. The floor drain core includes an outer core, an inner core, and a drainage cloth. The upper panel is fixedly connected to the upper floor drain body and is located above the upper floor drain body. The lower end of the upper cover is provided with a continuous baffle, and the upper cover is fastened to the upper panel.

[0004] In the above case, dual filtration is achieved through two fixedly connected floor drain layers. However, because the two floor drain layers are fixedly connected, it is difficult to clean when too much debris accumulates inside, resulting in a short service life of the device. In addition, foul-smelling gas will rise from the floor drain and be discharged from the sewage pipe, making the device impractical.

[0005] Therefore, this utility model provides a high-temperature resistant and odor-proof floor drain to meet the requirements. Utility Model Content

[0006] The purpose of this invention is to provide a high-temperature resistant and odor-proof floor drain to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature resistant and odor-proof floor drain, comprising a top plate, a floor drain pipe fixedly connected to the bottom of the top plate, a retaining ring fixedly connected to the top of the inner side of the floor drain pipe, a secondary plate abutting the top of the retaining ring, a plurality of sieve holes being formed inside the secondary plate, a bottom frame being threadedly connected to the bottom of the secondary plate, a plurality of filter grooves being formed on the outer side of the bottom frame, a guide plate fixedly connected to the inner side of the floor drain pipe at the bottom of the bottom frame, the outer side of the guide plate being a gradually downward sloping arc shape, a discharge pipe fixedly connected to the bottom of the floor drain pipe, the top of the discharge pipe extending to the inner side of the guide plate, the height of the top of the discharge pipe being higher than the height of the bottom of the guide plate, and a primary sieve plate being snapped onto the top of the top plate.

[0008] In a preferred embodiment, the guide plate includes several support plates fixedly connected to the top, and the outer side of the support plates is fixedly connected to the drain pipe.

[0009] In a preferred embodiment, the number of support plates is three, which are arranged in a ring inside the drain pipe.

[0010] In a preferred embodiment, gripping grooves are provided on both sides of the bottom end of the primary sieve plate, and the height of the top of the secondary plate is lower than the height of the top of the drain pipe.

[0011] In a preferred embodiment, the sieve hole is located above the inner side of the bottom frame, and side blocks are fixedly connected to both ends of the top of the secondary plate, with the side blocks located on both sides of the sieve hole.

[0012] In a preferred embodiment, the outer side of the bottom frame is tightly fitted to the inner side of the retaining ring, and the outer side of the secondary plate is slidably connected to the inner side of the drain pipe.

[0013] In a preferred embodiment, a threaded groove is provided on the outer side of the bottom end of the discharge pipe, both the drain pipe and the discharge pipe are PVC pipes, and both the primary sieve plate and the secondary sieve plate are PVC boards.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model, by setting a guide plate, a support plate, and a discharge pipe, allows the device to cover the top of the discharge pipe with the guide plate. When the odorous gas inside the discharge pipe flows into the drain pipe, a water seal space is formed between the water at the bottom of the drain pipe and the guide plate. This ensures that the gas only stays on the top inner side of the guide plate and does not flow to the outside of the guide plate, thus giving the device odor-proof performance and improving its practicality.

[0016] This utility model, by setting a retaining ring, a secondary plate, and a bottom frame, enables the device to form a three-stage filtration system through a primary sieve plate, a secondary plate, and a bottom frame, thereby improving the filtration performance of the device. The retaining ring also facilitates the disassembly of the secondary plate and the bottom frame, and the threaded connection between the secondary plate and the bottom frame further enhances the device's quick assembly and disassembly performance, making it easier to clean debris and extending the device's service life. Furthermore, the device is made of PVC material, giving it high-temperature resistance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a high-temperature resistant and odor-proof floor drain;

[0018] Figure 2 A cross-sectional three-dimensional structural diagram of a high-temperature resistant and odor-proof floor drain;

[0019] Figure 3This is a schematic diagram of the three-dimensional structure of the secondary plate and the bottom frame.

[0020] In the diagram: 1. Top plate; 2. Floor drain pipe; 3. Clamping ring; 4. Secondary plate; 5. Bottom frame; 6. Guide plate; 7. Support plate; 8. Discharge pipe; 9. Screen hole; 10. Side block; 11. Filter tank; 12. Primary screen plate; 13. Grabbing groove; 14. Threaded groove. Detailed Implementation

[0021] The present invention will be further described below with reference to the embodiments.

[0022] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention; the conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the concept of the present invention are all within the scope of protection claimed by the present invention.

[0023] Please see Figures 1-3 This utility model provides a high-temperature resistant and odor-proof floor drain, including a top plate 1, a floor drain pipe 2 fixedly connected to the bottom of the top plate 1, a retaining ring 3 fixedly connected to the top of the inner side of the floor drain pipe 2, a secondary plate 4 abutting the top of the retaining ring 3, a plurality of sieve holes 9 opened inside the secondary plate 4, a bottom frame 5 threadedly connected to the bottom of the secondary plate 4, a plurality of filter grooves 11 opened on the outer side of the bottom frame 5, a guide plate 6 fixedly connected to the inner side of the floor drain pipe 2 at the bottom of the bottom frame 5, the outer side of the guide plate 6 being a gradually downward sloping arc shape, a discharge pipe 8 fixedly connected to the bottom of the floor drain pipe 2, a threaded groove 14 opened on the outer side of the bottom end of the discharge pipe 8, the floor drain pipe 2 and the discharge pipe 8 are both PVC pipes, the primary sieve plate 12 and the secondary plate 4 are both PVC boards.

[0024] The discharge pipe 8 is threadedly connected to the drainage pipe through the threaded groove 14, and the top plate 1 is installed in a suitable position. When drainage begins, larger debris is first intercepted by the primary screen plate 12. Then, the sewage passes through the primary screen plate 12 and flows to the top of the secondary plate 4. The debris is then separated again through the screen holes 9. The sewage then enters the bottom frame 5 and is filtered through the filter tank 11 for three stages until it flows to the top of the guide plate 6. Then, it slides to the bottom of the floor drain pipe 2 and is finally discharged from the discharge pipe 8.

[0025] Through the synergistic action of the primary screen plate 12, the secondary plate 4, and the bottom frame 5, a three-stage filtration system is formed. Wastewater first passes through the primary screen plate 12, which intercepts larger garbage and debris, playing a preliminary filtration role. Subsequently, the wastewater flows into the secondary plate 4, where the sieve holes 9 inside the secondary plate 4 further filter out fine particles. Finally, the wastewater enters the bottom frame 5, where the filter tank 11 on the outside of the bottom frame 5 filters the wastewater again, removing residual micro-impurities. This three-stage filtration design can effectively remove various impurities from wastewater, ensuring cleaner discharged water and reducing the risk of sewer blockage.

[0026] Please see Figures 1-3 The top of the discharge pipe 8 extends to the inner side of the guide plate 6. The height of the top of the discharge pipe 8 is higher than the height of the bottom of the guide plate 6. The top of the top plate 1 is clamped with a primary screen plate 12. The guide plate 6 includes several support plates 7 fixedly connected to the top. The outer side of the support plates 7 is fixedly connected to the drain pipe 2. There are three support plates 7, which are distributed in a ring on the inner side of the drain pipe 2. Both sides of the bottom end of the primary screen plate 12 are provided with gripping grooves 13. The height of the top of the secondary plate 4 is lower than the height of the top of the drain pipe 2. The screen hole 9 is located above the inner side of the bottom frame 5. Both ends of the top of the secondary plate 4 are fixedly connected with side blocks 10, and the side blocks 10 are located on both sides of the screen hole 9. The outer side of the bottom frame 5 is tightly fitted with the inner side of the retaining ring 3. The outer side of the secondary plate 4 is slidably connected with the inner side of the drain pipe 2.

[0027] When odorous gas rises in the drain pipe, it flows from the discharge pipe 8 to the bottom of the inner side of the guide plate 6. At this time, a water seal is formed between the bottom of the floor drain pipe 2 and the guide plate 6, preventing the gas from passing through the guide plate 6 and rising, thus completing the odor prevention. When cleaning is required, the primary screen plate 12 is lifted by the grabbing groove 13, and the secondary plate 4 and the bottom frame 5 are pulled out from the floor drain pipe 2 by the side block 10. The bottom frame 5 is then unscrewed, debris is cleaned, and then it is reinstalled in its original position.

[0028] When the odorous gas inside the drain pipe 8 attempts to flow upward, the deflector plate 6 covers the top of the drain pipe 8, preventing the odorous gas from escaping directly from the top. At this time, a special water seal space is formed between the water at the bottom of the drain pipe 2 and the deflector plate 6. This space forces the odorous gas to pass through the water seal space before it can flow upward. Due to the water's obstruction, the odorous gas cannot easily pass through the water seal space and is effectively blocked at the top of the deflector plate 6, preventing it from entering the indoor environment. This effectively prevents the spread of odors and keeps the indoor air fresh.

[0029] The design of the retaining ring 3 and the threaded connection between the secondary plate 4 and the bottom frame 5 make the disassembly of the secondary plate 4 and the bottom frame 5 very convenient. Through the quick disassembly and assembly design, users can easily remove the secondary plate 4 and the bottom frame 5 to clean up debris, thereby maintaining the unobstructed flow and filtration performance of the floor drain. This convenient cleaning method effectively reduces the risk of floor drain blockage and filter component damage caused by debris accumulation, and extends the service life of the floor drain.

[0030] The working principle and usage process of this utility model are as follows: The discharge pipe 8 is threadedly connected to the drainage pipe through the threaded groove 14, and the top plate 1 is installed in a suitable position. When drainage begins, larger debris is first intercepted by the primary screen plate 12. Then, the sewage passes through the primary screen plate 12 and flows to the top of the secondary plate 4. The debris is then separated again through the screen holes 9. The sewage then enters the bottom frame 5 and is filtered through the filter tank 11 for three stages until it flows to the top of the guide plate 6. It then slides to the bottom of the floor drain pipe 2 and is finally discharged from the discharge pipe 8. When there is odorous gas rising in the drainage pipe, it will flow from the discharge pipe 8 to the bottom of the inner side of the guide plate 6. At this time, a water seal is formed between the bottom of the floor drain pipe 2 and the guide plate 6, preventing the gas from rising through the guide plate 6 and thus preventing odor. When cleaning is required, the primary screen plate 12 is lifted by the grabbing groove 13, and the secondary plate 4 and the bottom frame 5 are pulled out from the floor drain pipe 2 by the side block 10. The bottom frame 5 is unscrewed, debris is cleaned, and then it is reinstalled in its original position.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant and odor-proof floor drain, comprising a top plate (1), characterized in that, The bottom of the top plate (1) is fixedly connected to a drain pipe (2), and the top of the inner side of the drain pipe (2) is fixedly connected to a retaining ring (3). The top of the retaining ring (3) abuts against a secondary plate (4). The interior of the secondary plate (4) is provided with several sieve holes (9). The bottom of the secondary plate (4) is threadedly connected to a bottom frame (5). The outer side of the bottom frame (5) is provided with several filter grooves (11). The inner side of the drain pipe (2) is fixedly connected to the bottom of the bottom frame (5) with a guide plate (6). The outer side of the guide plate (6) is a gradually downward sloping arc shape. The bottom of the drain pipe (2) is fixedly connected to a discharge pipe (8). The top of the discharge pipe (8) extends to the inner side of the guide plate (6). The height of the top of the discharge pipe (8) is higher than the height of the bottom of the guide plate (6). The top of the top plate (1) is clamped with a primary sieve plate (12).

2. The high-temperature resistant and odor-proof floor drain according to claim 1, characterized in that, The guide plate (6) includes several support plates (7) fixedly connected to the top, and the outer side of the support plate (7) is fixedly connected to the drain pipe (2).

3. The high-temperature resistant and odor-proof floor drain according to claim 2, characterized in that, The number of the support plates (7) is three, which are distributed in a ring inside the drain pipe (2).

4. The high-temperature resistant and odor-proof floor drain according to claim 1, characterized in that, The first-stage sieve plate (12) has gripping grooves (13) on both sides of its bottom end, and the top of the second-stage plate (4) is lower than the top of the drain pipe (2).

5. A high-temperature resistant and odor-proof floor drain according to claim 1, characterized in that, The sieve hole (9) is located above the inner side of the bottom frame (5), and the two ends of the top of the secondary plate (4) are fixedly connected with side blocks (10), and the side blocks (10) are located on both sides of the sieve hole (9).

6. A high-temperature resistant and odor-proof floor drain according to claim 1, characterized in that, The outer side of the bottom frame (5) is tightly fitted to the inner side of the retaining ring (3), and the outer side of the secondary plate (4) is slidably connected to the inner side of the drain pipe (2).

7. A high-temperature resistant and odor-proof floor drain according to claim 1, characterized in that, The bottom outer side of the discharge pipe (8) is provided with a threaded groove (14). The floor drain pipe (2) and the discharge pipe (8) are both PVC pipes. The primary screen plate (12) and the secondary plate (4) are both PVC plates.

Citation Information

Patent Citations

  • Double-layer floor drain

    CN221878314U