Anti-odor drainage floor drain

By combining a floating sealing ball with a tapered pipe, the problems of water seal drying and mechanical component failure are solved, achieving a stable anti-odor effect and a long service life for the floor drain.

CN224161179UActive Publication Date: 2026-04-24NINGBO ZHENGYING METAL PRODUCTS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO ZHENGYING METAL PRODUCTS CO LTD
Filing Date
2025-05-09
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

In existing anti-odor drainage floor drains, the water seal is prone to drying out, leading to sealing failure. The mechanical parts of self-sealing floor drains are easily affected by impurities or elastic fatigue, resulting in poor sealing.

Method used

The design employs a floating sealing ball in conjunction with a tapered tube. The sealing ball floats and drains water through the impact of water flow. After drainage stops, it automatically seals by gravity. Combined with corrosion-resistant materials, this ensures a good seal.

Benefits of technology

It improves the sealing effect, avoids water seal drying and mechanical component failure, and provides stable and reliable anti-odor effect, reducing product damage rate and replacement cost.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224161179U_ABST
    Figure CN224161179U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of drainage floor drains, and discloses an anti-odor drainage floor drain which comprises a floor drain plate, a threaded opening is formed in the top end of the floor drain plate, an insertion pipe is fixedly connected to the bottom end of the floor drain plate, a drainage assembly used for drainage is arranged in the insertion pipe, and the bottom end of the insertion pipe is fixedly connected with the drainage assembly. According to the anti-odor floor drain, the drainage assembly and the anti-odor assembly are arranged in a matched mode, sealing can be automatically formed after drainage is stopped, compared with a traditional floor drain, the problems that a water seal is dry up, mechanical parts break down and the like are solved, the anti-odor effect is stable and reliable, the overall structural design is simple, and the anti-odor floor drain is suitable for being popularized and applied. The adopted materials have good water resistance and corrosion resistance, all the parts are connected stably, the service life is long, and the damage rate and replacement cost of products are reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of drainage floor drain technology, specifically to a drainage floor drain that prevents backflow of odors. Background Technology

[0002] An anti-odor floor drain is a device used to prevent sewer odors from entering the room. Various sealing devices, such as rubber sealing rings and silicone sealing gaskets, form a tight seal at the drain outlet to prevent odor leakage. For example, some magnetic floor drains use magnetism to automatically close the sealing cap after drainage, forming a seal and preventing odors from rising back up. Currently, many common anti-odor floor drains on the market have several problems.

[0003] Water-sealed floor drains rely on a water seal to isolate odors, but the water in the seal can easily dry out due to evaporation, siphoning, or other reasons, causing the anti-odor function to fail. Self-sealing floor drains, such as magnetic and spring-type floor drains, can automatically seal, but the magnetic components are easily affected by impurities, weakening the magnetic force. The springs may experience elastic fatigue or jamming after long-term use, resulting in poor sealing. Therefore, an anti-odor drainage floor drain is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a drainage floor drain that prevents backflow of odors. This solves the problem that in the prior art, water-sealed floor drains rely on water seals to isolate odors, but the water in the water seal is prone to drying out due to evaporation, siphoning, etc., causing the backflow prevention function to fail. Self-sealing floor drains, such as magnetic and spring-type floor drains, can automatically seal, but the magnetic components are easily affected by impurities, weakening the magnetic force. The springs may experience elastic fatigue and jamming after long-term use, resulting in poor sealing.

[0005] This utility model provides the following technical solution: a drainage floor drain that prevents backflow of odors, including a floor drain plate, the top of which is provided with a threaded opening, and the bottom of which is fixedly connected with a pipe. The pipe is provided with a drainage component for drainage, and the drainage component is provided with an anti-backflow component to prevent backflow of odors from the sewer.

[0006] As a preferred embodiment of the above technical solution, the drainage component includes a circular plate, the top of which has a plurality of filter holes I, the bottom of which is fixedly connected to a plurality of circumferentially arranged connecting plates, the bottom ends of which are fixedly connected to an annular plate, the bottom end of which is fixedly connected to a conical tube, and the bottom end of which is provided with a plurality of filter holes II.

[0007] As a preferred embodiment of the above technical solution, the circular plate is threaded into the threaded opening.

[0008] As a preferred embodiment of the above technical solution, the inner side of the insertion tube is fixedly connected to a ring-shaped boss, and the top of the boss is provided with a groove.

[0009] As a preferred embodiment of the above technical solution, the annular plate is inserted into the groove.

[0010] As a preferred embodiment of the above technical solution, the anti-odor component includes a pull head located at the top of the circular plate, a plug plate fixedly connected to the bottom of the pull head, the plug plate being inserted into the bottom of the circular plate, and a floating sealing ball fixedly connected to the bottom of the plug plate.

[0011] As a preferred embodiment of the above technical solution, the floating sealing ball is located between the inner sides of several connecting plates.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model, through the combined design of drainage components and anti-odor components, can automatically form a seal after drainage stops. Compared with traditional floor drains, it improves the sealing effect, avoids problems such as water seal drying and mechanical component failure, and has a stable and reliable anti-odor effect. The overall structure design is simple, and the materials used all have good water resistance and corrosion resistance. The components are firmly connected, have a long service life, and reduce the product damage rate and replacement cost. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a drainage floor drain designed to prevent backflow of odors.

[0015] Figure 2 A cross-sectional structural diagram of a drainage floor drain designed to prevent backflow of odors;

[0016] Figure 3 for Figure 2 A magnified schematic diagram of the structure of part A in the diagram;

[0017] Figure 4 This is a three-dimensional structural diagram of a drainage component for a floor drain designed to prevent backflow of odors.

[0018] In the diagram: 1. Floor drain plate; 101. Threaded opening; 102. Insert pipe; 103. Boss; 104. Groove; 2. Drainage component; 201. Round plate; 202. Filter hole one; 203. Connecting plate; 204. Ring plate; 205. Conical pipe; 206. Filter hole two; 3. Anti-odor component; 301. Pull head; 302. Insert plate; 303. Floating sealing ball. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] like Figures 1-4As shown, this utility model provides a technical solution: a drainage floor drain with anti-backflow function, including a floor drain plate 1, a threaded opening 101 at the top of the floor drain plate 1, and a pipe 102 fixedly connected to the bottom of the floor drain plate 1. The pipe 102 has a drainage component 2 for drainage inside, and an anti-backflow component 3 for preventing backflow of sewer odors inside the drainage component 2. Through the cooperation of the drainage component 2 and the anti-backflow component 3, a seal can be automatically formed after drainage stops. Compared with traditional floor drains, the sealing effect is improved, avoiding problems such as water seal drying and mechanical component failure. The anti-backflow effect is stable and reliable. The overall structure design is simple, and the materials used have good water resistance and corrosion resistance. The components are firmly connected, have a long service life, and reduce the product damage rate and replacement cost.

[0021] As one implementation method in this embodiment, such as Figure 2 , Figure 3 and Figure 4 As shown, the drainage component 2 includes a circular plate 201. The top of the circular plate 201 has several filter holes 202. The bottom of the circular plate 201 is fixedly connected to several circumferentially arranged connecting plates 203. An annular plate 204 is fixedly connected between the bottom ends of the connecting plates 203. A tapered tube 205 is fixedly connected to the bottom end of the annular plate 204. The bottom end of the tapered tube 205 has several filter holes 206. The circular plate 201 is threaded into a threaded opening 101. An annularly arranged boss 103 is fixedly connected to the inner side of the insertion tube 102. The top of component 03 has a groove 104, and the ring plate 204 is inserted into the groove 104. In practice, the insertion tube 102 is inserted into the drain and threaded to the ground pipe. Then, the tapered tube 205 is inserted into the insertion tube 102, and the circular plate 201 is threaded to the threaded port 101. At this time, the ring plate 204 can be pressed against the groove 104, which facilitates the overall installation of the drainage component 2 and the anti-odor component 3. The filter hole 1 202 and the filter hole 2 206 will intercept hair, debris, etc. step by step to prevent them from entering the drainage pipe and causing blockage.

[0022] As one implementation method in this embodiment, such as Figure 2 and Figure 4As shown, the anti-odor component 3 includes a pull head 301, which is located at the top of the circular plate 201. A mounting plate 302 is fixedly connected to the bottom of the pull head 301, and the mounting plate 302 is inserted into the bottom of the circular plate 201. A floating sealing ball 303 is fixedly connected to the bottom of the mounting plate 302, and is located between the inner sides of several connecting plates 203. The diameter of the floating sealing ball 303 is slightly larger than the top opening of the conical tube 205, facilitating sealing and odor prevention. The floating sealing ball 303 is also easily lifted and floated by water flow. In practice, when there is accumulated water on the ground that needs to be drained, the water flows through the circular plate 201 and the filter hole 202 into the mounting tube 102. The water flow impacts the floating sealing ball 303, causing it to float. The water then smoothly enters the conical tube 205 through the opening at the top of the conical tube 205. The water flows into the sewer through filter hole 206. During this process, filter holes 202 and 206 intercept hair, debris, and other contaminants step by step, preventing them from entering the drain pipe and causing blockages. When drainage stops and the water level drops, the floating sealing ball 303 automatically falls into the top opening of the conical tube 205 under gravity, forming a tight seal and preventing sewer odors from returning to the room. Therefore, this device can automatically form a seal after drainage stops through the cooperation of the floating sealing ball 303 and the conical tube 205. Compared with traditional floor drains, it avoids problems such as water seal drying and mechanical component failure. The anti-odor effect is stable and reliable. The overall structure is simple, and the materials used have good water resistance and corrosion resistance. The components are firmly connected, have a long service life, and reduce the product's damage rate and replacement cost.

[0023] It is worth noting that the floating sealing ball 303 can be made of polypropylene, a common thermoplastic characterized by low density and light weight, which meets the lightweight requirement of the floating sealing ball 303. It has good chemical stability, excellent resistance to water and most chemicals, and does not exhibit significant performance changes even after long-term immersion in water. It also has strong corrosion resistance, effectively resisting the erosion of common acid and alkali solutions, and excellent weather resistance, allowing for long-term use in various environments.

[0024] Working principle: By inserting the insertion tube 102 into the drain outlet and threadedly connecting it to the ground pipe, and then inserting the tapered tube 205 into the insertion tube 102, and threading the circular plate 201 into the threaded opening 101, the ring plate 204 can be pressed against the groove 104, thereby realizing the overall installation of the drainage component 2 and the anti-odor component 3. During use, when there is water on the ground that needs to be drained, the water flows through the circular plate 201 and the first filter hole 202 into the insertion tube 102. The water flow impacts the floating sealing ball 303, causing it to float. The floating sealing ball 303 can be made of polypropylene, a common thermoplastic plastic with low density and light weight, which meets the lightweight requirements of the floating sealing ball 303. The water flows smoothly into the tapered tube 205 through the opening at the top of the tapered tube 205 and is discharged into the sewer through the second filter hole 206. During this process, the first filter hole 202 and the second filter hole 206 will intercept hair, debris, etc., step by step to prevent them from entering the drain pipe and causing blockage. When the drain stops, the water level drops, and the floating sealing ball 303 automatically falls into the top opening of the tapered tube 205 under gravity, forming a tight seal to prevent sewer odors from returning to the room. During regular maintenance, because the threads of the insert 102 and the circular plate 201 are opposite, the user can rotate the pull head 301 to separate the circular plate 201 from the threaded opening 101, while the insert 102 will not detach from the floor pipe. At this time, the circular plate 201 and the tapered tube 205 can be pulled out as a whole, the trapped debris can be cleaned, and then they can be reinstalled in their original positions for continued normal use. Therefore, this device, through the cooperation of the floating sealing ball 303 and the tapered tube 205, can automatically form a seal after drainage stops. Compared with traditional floor drains, it improves the sealing effect, avoids problems such as water seal drying and mechanical component failure, and has a stable and reliable anti-odor effect. The overall structure design is simple, and the materials used all have good water resistance and corrosion resistance. The connections of each component are firm, the service life is long, and the damage rate and replacement cost of the product are reduced.

[0025] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A drain with anti-odor function, comprising a drain plate (1), wherein the top end of the drain plate (1) is provided with a threaded opening (101), and the bottom end of the drain plate (1) is fixedly connected with a pipe (102), characterized in that: The tube (102) is provided with a drainage component (2) for draining water, and the drainage component (2) is provided with an anti-odor component (3) to prevent backflow of odor from the sewer.

2. The anti-odor drainage floor drain according to claim 1, characterized in that: The drainage component (2) includes a circular plate (201), the top of which is provided with a plurality of filter holes (202), the bottom of which is fixedly connected with a plurality of circumferentially arranged connecting plates (203), the bottom ends of which are fixedly connected with a ring plate (204), the bottom end of which is fixedly connected with a tapered tube (205), and the bottom end of which is provided with a plurality of filter holes (206).

3. The anti-odor drainage floor drain according to claim 2, characterized in that: The circular plate (201) is threaded into the threaded opening (101).

4. The anti-odor drainage floor drain according to claim 2, characterized in that: The inner side of the cannula (102) is fixedly connected to a ring-shaped boss (103), and a groove (104) is provided at the top of the boss (103).

5. The anti-odor drainage floor drain according to claim 4, characterized in that: The ring plate (204) is inserted into the groove (104).

6. The anti-odor drainage floor drain according to claim 2, characterized in that: The anti-odor component (3) includes a pull head (301), which is located at the top of the circular plate (201). The bottom end of the pull head (301) is fixedly connected to a plug plate (302), which is inserted into the bottom end of the circular plate (201). The bottom end of the plug plate (302) is fixedly connected to a floating sealing ball (303).

7. The anti-odor drainage floor drain according to claim 6, characterized in that: The floating sealing ball (303) is located between the inner sides of several connecting plates (203).