Multi-deodorization household floor drain
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-10
Smart Images

Figure CN223984084U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of floor drain technology, and more specifically, to a multi-layered odor-proof household floor drain. Background Technology
[0002] Floor drains are an important interface connecting the drainage pipe system to the indoor floor. As a crucial component of the drainage system in a residence, their performance directly affects indoor air quality and is very important for controlling odors in the bathroom.
[0003] Currently, Chinese patent CN216689679U discloses a type of ultra-thin multi-layer anti-odor household floor drain with fast drainage. It includes a floor drain body, a floor drain cover, a filter screen, and an anti-odor silicone core. The water outlet of the floor drain body adopts an arc-shaped constriction to adapt to the installation of various drainage pipe interfaces. The lower part of the anti-odor silicone core is an S-shaped streamlined sealing area, which has the function of preventing insects and odors, and the length can be trimmed according to the internal space of the pipe.
[0004] However, the aforementioned "ultra-thin multi-layer anti-odor household floor drain for fast drainage" still has some problems: the anti-odor silicone core will age after long-term use, which will cause some gas to rise through the gaps in the drain outlet, affecting the anti-odor effect of the floor drain. Therefore, the floor drain cannot fully block odors by relying on a single anti-odor structure, and has not fully solved the problem of odors from outdoor drain pipes flowing back into the room. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a multi-layer odor-proof household floor drain to solve the above-mentioned technical problems.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer odor-proof household floor drain, comprising a floor drain body, an installation recess formed on the top surface of the floor drain body and a drain pipe formed inside the recess, a floor drain cover inside the installation recess, a water storage tank formed between the drain pipe and the installation recess, a water-blocking ring formed on the inner side of the floor drain cover at the corresponding position of the water storage tank, the water-blocking ring being located in the middle of the water storage tank and dividing the water storage tank into an inlet channel and a drain channel, and an odor-proof core adapted to the drain pipe being fixedly installed on the inner side of the floor drain cover.
[0007] The present invention is further configured such that: the water-blocking ring is formed with several openings, the openings being lower than the liquid level at the opening end of the drain pipe.
[0008] The present invention is further configured such that: the odor-proof core includes a connecting part and a deformable part, the deformable part being made of a flexible material with good shape memory properties.
[0009] The present invention is further configured such that: the deformable part has a trumpet-shaped structure and a vertical section, and the vertical section is fitted into the inside of the floor drain pipe.
[0010] The present invention is further configured such that: an assembly hole is formed in the middle of the drain cover, an assembly part is installed in the assembly hole, and a slot adapted to the connecting part is formed at the lower end of the assembly part.
[0011] The present invention is further configured such that: the fitting is in the form of a columnar structure and has a threaded hole formed on the top surface; the drain cover is fitted with a fastener that matches the threaded hole; and the outer surface of the fitting is formed with a retaining ring.
[0012] The present invention is further configured such that: the fitting is located at the corresponding position of the slot and has several openings equidistantly and circumferentially, each opening having a bent piece formed inside, a pressing block formed on the inner side of the bent piece, a mating block formed on the outer side, and a mating oblique waist formed on the mating block, and a fastening knob is threaded on the outer side of the fitting.
[0013] In summary, this utility model has the following beneficial effects: This utility model, through the combination of a water-sealed anti-odor and an anti-odor core, has a double-sealed dustproof structure that effectively prevents odors in the pipes from seeping into the ground through the drain body, thus ensuring the odor-proof performance of the drain. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 Overall structural diagram of this utility model
[0016] Figure 2 for Figure 1 Enlarged schematic diagram of the local structure at point A;
[0017] Figure 3 for Figure 2 Enlarged schematic diagram of the local structure at point B;
[0018] Reference numerals: 1. Drain body; 10. Installation recess; 11. Drain pipe; 12. Drain cover; 13. Water storage tank; 14. Water inlet channel; 15. Drain channel; 16. Opening; 2. Odor-proof core; 20. Connecting part; 21. Deformable part; 22. Vertical section; 3. Assembly hole; 30. Assembly part; 31. Slot; 32. Threaded hole; 33. Fastener; 34. Abutment ring; 35. Opening; 36. Bending piece; 37. Pressing block; 38. Mating block; 4. Fastening knob; 5. Water-blocking ring. Detailed Implementation
[0019] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-2 As shown, a multi-layered odor-proof household floor drain according to an embodiment of the present invention includes a floor drain body 1. The top surface of the floor drain body 1 is formed with an installation recess 10 and a drain pipe 11 is formed inside it. A floor drain cover 12 is built into the installation recess 10. A water storage tank 13 is formed between the drain pipe 11 and the installation recess 10. A water-blocking ring 5 is formed on the inner side of the floor drain cover 12 at the corresponding position of the water storage tank 13. The water-blocking ring 5 is located in the middle of the water storage tank 13 and divides the water storage tank 13 to form a water inlet channel 14 and a drainage channel 15. An odor-proof core 2 adapted to the drain pipe 11 is fixedly installed on the inner side of the floor drain cover 12.
[0021] When in use, the drain cover 12 is densely covered with several drain holes at the location corresponding to the water inlet channel 14. During daily use, external water enters the water inlet channel 14 through the drain holes. The water seal between the water inlet channel and the drain channel 15 forms the first layer of odor prevention for the drain. An odor-proof core 2 adapted to the drain pipe 11 is fixedly installed on the inner side of the drain cover 12 to form the second layer of odor prevention for the drain.
[0022] This utility model uses a double-sealed dustproof structure that combines water-sealed odor prevention and odor-proof core 2 to effectively prevent odors in the pipeline from seeping into the ground through the drain body 1, thus ensuring the odor-proof performance of the drain.
[0023] The water-retaining ring 5 is formed with several openings 16, and the liquid level at the opening 35 end of the drain pipe 11 is lower than that at the opening 35 end.
[0024] When in use, the liquid level at the inlet 16 is lower than the liquid level at the opening 35 of the drain pipe 11, so that a water storage section is formed between the water inlet channel 14 and the drain channel 15, and this water storage section forms a water seal between the water inlet channel 14 and the drain channel 15.
[0025] The odor-proof core 2 includes a connecting part 20 and a deformable part 21. The deformable part 21 is made of a flexible material with good shape memory properties. The deformable part 21 has a trumpet-shaped structure and a vertical section 22. The vertical section 22 is fitted into the inside of the floor drain pipe 11.
[0026] In use, the deformable part 21 is preferably made of a flexible rubber material (silicone rubber);
[0027] When there is no drainage, the deformable part 21 of the odor-proof core 2 is sealed to the inside of the drain pipe 11, and the odor in the pipe cannot seep into the ground from the drain pipe 11. When draining, the water overflows into the drain pipe 11 through the water storage tank 13. Under the action of gravity of the water, the deformable part 21 of the odor-proof core 2 deforms. At this time, a water passage is formed between the inner wall of the drain pipe 11 and the odor-proof core 2, and the drain drains normally.
[0028] The drain cover 12 has an assembly hole 3 formed in the middle, and an accessory 30 is installed in the assembly hole 3. The lower end of the accessory 30 has a slot 31 that matches the connecting part 20. The accessory 30 has a columnar structure and a threaded hole 32 formed on the top surface. The drain cover 12 is fitted with a fastener 33 that matches the threaded hole 32. The outer surface of the accessory 30 has a retaining ring 34 formed. The accessory 30 has several openings 35 equidistantly spaced at the corresponding positions of the slots 31 and circumferentially open. Each opening 35 has a bent piece 36 formed in it. The inner side of the bent piece 36 has a pressing block 37, and the outer side has a mating block 38 with a mating bevel. The outer side of the accessory 30 is threaded with a fastening knob 4.
[0029] When in use, the fitting 30 is detachably connected to the drain cover 12 for easy daily replacement. During installation, insert one end of the threaded hole 32 of the fitting 30 into the assembly hole 3 from the inside of the drain cover 12 until the abutment 34 abuts against the end of the opening 35 inside the assembly hole 3. At this time, tighten the fastener 33 (bolt or screw) to the threaded hole 32 to complete the installation and fixation of the fitting 30. The lower end of the fitting 30 has a slot 31 that matches the connecting part 20 for installing the odor-proof core 2.
[0030] When installing the odor-proof core 2, insert the connecting part 20 into the slot 31, and rotate the fastening knob 4 to make it move upward along the axis of the fitting 30. The fastening knob 4 moves upward and makes oblique contact with the mating block 38. At this time, the fastening knob 4 causes each bending piece 36 to bend synchronously toward the slot 31. Each bending piece 36 is pressed and fixed by the pressing block 37 to fix the connecting part 20, thereby realizing the installation and fixation of the dustproof core. The odor-proof core 2 and the drain cover 12 can be detachably connected for easy replacement during daily maintenance.
[0031] It should also be noted that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0032] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A multi-anti-odor household floor drain, comprising a floor drain body (1), the top surface of the floor drain body (1) is formed with a mounting recess (10) and an inner drain pipe (11), the mounting recess (10) is internally provided with a floor drain upper cover (12), characterized in that: The water retaining groove (13) is formed between the drain pipe (11) and the mounting recess (10), the water retaining ring (5) is formed at the corresponding position of the water retaining groove (13) on the inner side of the floor drain upper cover (12), the water retaining ring (5) is located at the middle part of the water retaining groove (13) to divide the water retaining groove (13) into the water inlet channel (14) and the drain channel (15), and the deodorizing core (2) adapted to the drain pipe (11) is fixedly arranged on the inner side of the floor drain upper cover (12).
2. The multiple deodorizing household floor drain according to claim 1, characterized in that: The water retaining ring (5) is formed with a plurality of through openings (16), and the liquid level of the through openings (16) is lower than the end of the opening (35) of the drain pipe (11).
3. The multiple deodorizing household floor drain according to claim 1, characterized in that: The deodorizing core (2) comprises a connecting portion (20) and a deformation portion (21), and the deformation portion (21) is made of a flexible material with good shape memory performance.
4. The multiple deodorizing household floor drain according to claim 3, characterized in that: The deformation portion (21) has a vertical section (22) and is in a trumpet shape.
5. The multiple deodorizing household floor drain according to claim 1, wherein: The middle part of the floor drain upper cover (12) is formed with an assembly hole (3), the assembly hole (3) is provided with an assembly part (30), and the lower end of the assembly part (30) is formed with a slot (31) adapted to the connecting portion (20).
6. The multiple deodorizing household floor drain according to claim 5, characterized in that: The assembly part (30) has a columnar structure and a threaded hole (32) formed on the top surface, the floor drain upper cover (12) is provided with a fastener (33) adapted to the threaded hole (32), and the outer surface of the assembly part (30) is formed with a stop ring (34).
7. The multiple deodorizing household floor drain according to claim 5, characterized in that: The assembly part (30) is equidistantly provided with a plurality of openings (35) at the corresponding position of the slot (31) and in a circumferential direction, each of the openings (35) is formed with a bending piece (36), the inner side of the bending piece (36) is formed with a pressing block (37), the outer side of the bending piece (36) is formed with a matching block (38), and the matching block (38) is formed with a matching inclined waist, and the outer side of the assembly part (30) is threadedly provided with a fastening knob (4).
Citation Information
Patent Citations
Ultrathin odor-resistant floor drain for fast drainage
CN216689679U