Large-flow floor drain capable of secondary drainage

Abstract

The utility model relates to the technical field of waste water sanitary pipeline devices, in particular to a deodorization seal. According to the technical scheme, the large-flow floor drain capable of achieving secondary drainage is characterized by comprising an umbrella-shaped deodorization core and a floor drain heightening sleeve body located on the lower portion, the umbrella-shaped deodorization core is fixed to a deodorization core support through a deodorization core pressing cap, the circumferential edge of the umbrella-shaped deodorization core is provided with a folded edge, and the folded edge is tightly attached to the circumferential edge of the lower portion of the deodorization core support; a sunken circular ring groove is formed in the top of the upper portion of the deodorization core support, a fishbone-shaped filter screen is installed in the groove, and cutting grooves are formed in the upper portion of the heightening sleeve body at intervals. The problems that in the prior art, adjustment cannot be achieved, large-flow drainage cannot be achieved, and attractiveness is not achieved are solved, the large-flow floor drain capable of conducting secondary drainage is provided, and the purposes that attractiveness is achieved, large-flow drainage can be achieved, maintenance is convenient, adjustment is achieved, and the secondary drainage function is achieved are achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater sanitary pipeline devices, and in particular to odor-proof sealing. Background Technology

[0002] With the continuous development of modern life and people's increasing demand for a comfortable quality of life, the functions of modern bathrooms have been greatly expanded. Sunken bathrooms, with their larger space and aesthetically pleasing design, are becoming increasingly popular. However, the drainage system of sunken bathrooms is buried under the floor, making cleaning very inconvenient. A proper piping system needs to be installed before the floor tiles and cement are laid. During the initial installation of the floor drain, its location needs to be predetermined, but due to errors in the initial construction, the final actual position of the drain panel may not be in the expected location. Traditional floor drains are difficult to clean because the internal channels are too narrow, making cleaning tools unable to reach deep inside. Furthermore, traditional same-floor drainage floor drains generally suffer from low flow rates. For example, Chinese patent CN202672324U discloses a novel odor-proof floor drain, providing the following technical solution: This utility model discloses a novel odor-proof floor drain, relating to a water supply and drainage product installed in a fixed building for sewage discharge. The odor-proof floor drain includes a mounting base, a drain hole, an odor-proof component, and a leakage component. Its disclosed technical feature is a split-type mounting base, mainly composed of a base and a detachable sealing insert connected to the top of the base. The upper body can be appropriately heightened at the factory, so that if the mounting base is installed too high on the ground during actual construction, the height of the upper body can be adjusted simply by cutting, thus greatly facilitating construction. However, the aforementioned novel odor-proof floor drain cannot meet the requirements for smooth drainage of large flow rates. It also cannot provide secondary drainage and cannot solve the problem of adjustable functionality in cases of inaccurate initial positioning or unsatisfactory panel placement. Utility Model Content

[0003] This invention solves the problems of inability to adjust, inability to drain large volumes, and unsightly appearance in the prior art. It proposes a floor drain with high flow rate and secondary drainage, achieving the goals of being aesthetically pleasing, capable of draining large volumes, easy to maintain, adjustable, and having secondary drainage function.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A high-flow-rate floor drain capable of secondary drainage is characterized by comprising an umbrella-shaped odor-proof core and a floor drain extension sleeve body located at the bottom. The umbrella-shaped odor-proof core is fixed to an odor-proof core support by an odor-proof core pressure cap. The circumferential edge of the umbrella-shaped odor-proof core has a folded edge that fits tightly against the lower circumference of the odor-proof core support. A recessed annular groove is provided at the top of the odor-proof core support, and a fishbone-shaped filter screen is installed in the groove. Cutting grooves are provided at several intervals on the upper part of the extension sleeve body.

[0006] The advantage of this design is that it achieves a balance between odor prevention and ease of cleaning by combining an umbrella-shaped odor-proof core with an easily removable odor-proof core support. The tight fit between the folded edge and the odor-proof core support effectively blocks odors, the herringbone-shaped filter design makes debris removal more efficient, and the raised cut groove of the main body provides an adjustable installation height to flexibly adapt to different installation needs.

[0007] Preferably, the filter screen adopts a fishbone shape design with a central hole. This hole is fixed to the truncated cone protrusion on the odor-proof core support, and the inner diameter of the upper part of the heightened sleeve body is larger than the outer diameter of the lower circumference of the odor-proof core support.

[0008] The advantages of this design are that the fishbone shape effectively increases the filtration area and improves water flow efficiency. The fit between the round holes and the truncated cone ensures the filter screen is firmly fixed, preventing displacement during use. The inner diameter of the raised sleeve body is larger than the outer diameter of the odor-proof core support, ensuring installation stability and odor-proof effect, and further improving the accuracy of the installation process.

[0009] Preferably, the periphery of the odor-proof core support is provided with soft plastic, and the center of the plastic panel base is provided with a recessed stepped circular hole. The stepped circular hole is adapted to the odor-proof core support, and the gap between the odor-proof core support and the plastic panel base is sealed by the soft plastic. The soft plastic and the odor-proof core support are an integral whole.

[0010] The advantages of this design are that the soft plastic's sealing performance effectively prevents odor leakage, keeping the bathroom air fresh. Furthermore, the integrated design with the odor-proof core support increases component stability and reduces the risk of leaks and seepage. The stepped circular holes enhance fit, making the installation of each component tighter and improving the overall sealing effect.

[0011] Preferably, the plastic panel base has beveled edges around its upper edge, and the metal panel has beveled edges around its perimeter. The metal panel is fixed in place by the beveled edges of the plastic panel base through the metal panel bevels. The metal panel bevels are beveled edges.

[0012] The advantage of this design is that the chamfered edges ensure a stable connection between the metal panel and the plastic base, preventing loosening or instability during use. At the same time, the beveled edges enhance aesthetics, making the drain appear smoother and more refined, suitable for the needs of modern bathroom designs.

[0013] Preferably, the umbrella-shaped odor-proof core has a folded edge on its circumference; when no water flows down, the umbrella-shaped odor-proof core is in an open state, and the folded edge is tightly fitted with the periphery of the odor-proof core support circle; when water flows down from above, the umbrella-shaped odor-proof core contracts and closes.

[0014] The advantage of this design is that the folded edges of the umbrella-shaped odor-proof core form a tight seal when there is no water flow, preventing odor from leaking out; while when water flows, the umbrella-shaped structure automatically contracts to ensure smooth water flow and avoid blockage, further improving the convenience and functionality of use.

[0015] Preferably, the lower part of the raised drain sleeve body is provided with several secondary drainage protrusions distributed around the circumference of the inlet, and the lower part of the raised drain sleeve body is also provided with several guide rib grooves distributed around the circumference of the inlet, and the lower part of the raised sleeve body is provided with an inlet for inserting a pre-reserved drainage pipe for the partition layer.

[0016] The advantages of this design are that the secondary drainage protrusions and guide grooves effectively filter impurities and provide a secondary drainage channel, preventing water from stagnating between the drain and the floor, thus improving drainage efficiency and effectively preventing blockages. The pre-installed pipe sockets allow for more flexible installation, facilitating connection with the interlayer drainage system and providing more installation options.

[0017] Preferably, the umbrella-shaped odor-proof core is made of soft rubber, and the soft plastic is produced by secondary injection molding.

[0018] The advantage of this design is that the umbrella-shaped anti-odor core made of soft rubber can better adapt to changes in water flow, and the sealing effect is more reliable. The secondary injection molding of soft plastic provides higher durability and sealing performance, ensuring a tight fit between the anti-odor core support and the base, making it less prone to wear and extending its service life.

[0019] Preferably, the plastic panel base has a grooved support edge around its lower perimeter, and the metal panel is 0.5mm to 1.5mm higher than the plastic panel base.

[0020] The advantage of this design is that the grooved support edge enhances the stability of the plastic panel base, ensuring the stability and safety of the metal panel after installation. The design of the metal panel being slightly higher than the plastic panel makes the drain more aesthetically pleasing and durable, prevents water from entering the panel gaps, and further improves drainage and waterproofing performance.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0022] 1. This utility model employs secondary drainage protrusions and guide rib grooves, effectively improving drainage performance, preventing water accumulation between the drain and the floor, enhancing drainage efficiency, and preventing blockages. The umbrella-shaped odor-proof core, through the tight fit between the folded edges and the odor-proof core support, ensures effective prevention of odor leakage when there is no water flow. When water flows, the umbrella-shaped structure automatically contracts and closes, ensuring smooth water flow and achieving an optimal balance between odor prevention and drainage. The overall design is adaptable to various environments, meeting the needs of sunken bathrooms for efficient drainage and odor prevention.

[0023] 2. The main body of this utility model features a cuttable design, providing flexible installation height adjustment to accommodate different tile heights and solving the common problem of height mismatch during installation. Simultaneously, the odor-proof core support and soft plastic sealing design ensure the stability and sealing of the drain installation, reducing the risk of water leakage and odor leakage. The fishbone-shaped filter design makes cleaning hair and other debris easier, and the overall "full-bore" structure further simplifies maintenance and enhances ease of use.

[0024] 3. This utility model, through its meticulously designed chamfered structure, achieves a more stable combination of the metal panel and plastic base, while also enhancing its refined appearance. This allows the drain to blend better with the floor, presenting a "frameless drain" effect that meets the aesthetic requirements of modern homes. The umbrella-shaped odor-proof core made of soft rubber and the secondary injection-molded soft plastic material enhance the product's durability and sealing performance, making it less prone to wear and ensuring its performance remains unaffected even after prolonged use. These structural optimizations result in a drain that not only boasts high performance but also a longer lifespan and enhanced aesthetics. Attached Figure Description

[0025] Figure 1 This is a cross-sectional view of a floor drain according to one embodiment of the present invention, which is a high-flow-rate floor drain capable of secondary drainage.

[0026] Figure 2 This is a schematic diagram of the overall structure of one embodiment of the high-flow-rate floor drain with secondary drainage according to this utility model.

[0027] Figure 3 This is a schematic diagram of the main structure of the raised sleeve of one embodiment of the high-flow-rate floor drain with secondary drainage according to this utility model.

[0028] Figure 4 This is a schematic diagram of the umbrella-shaped odor-proof core structure of one embodiment of a floor drain with high flow rate and secondary drainage according to this utility model.

[0029] Figure 5This is a schematic diagram of the fishbone-shaped filter screen structure of one embodiment of a floor drain with high flow rate and secondary drainage according to this utility model.

[0030] Figure 6 This is a schematic diagram of the odor-proof core support structure of an embodiment of a high-flow-rate floor drain with secondary drainage according to this utility model.

[0031] Figure 7 This is a schematic diagram of the plastic panel base structure of one embodiment of a floor drain with high flow rate and secondary drainage according to this utility model.

[0032] Figure 8 This is a schematic diagram of the metal panel structure of one embodiment of a floor drain with high flow rate and secondary drainage according to this utility model.

[0033] Illustration:

[0034] 1. Floor drain; 1.1 Floor drain raised sleeve body; 1.1.1 Secondary drainage protrusion; 1.1.2 Guide rib groove; 1.2 Plastic panel base; 1.2.1 Beveled edge; 1.3 Umbrella-shaped odor-proof core; 1.3.1 Folded edge; 1.4 Odor-proof core support; 1.4.1 Soft plastic; 1.5 Odor-proof core pressure cap; 1.6 Fishbone-shaped filter screen; 1.7 Metal panel; 1.7.1 Metal panel bevel; 1.8 Reserved DN50 pipe. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings. The proportions of the components are not drawn to scale, and the proportions and dimensions shown in the drawings should not limit the essential technical solutions of this utility model. These embodiments do not exhaustively describe all details, nor do they limit this utility model to merely the specific embodiments described.

[0036] See Figures 1 to 8 As shown, a high-flow-rate floor drain capable of secondary drainage is characterized by comprising an umbrella-shaped odor-proof core 1.3 and a floor drain extension sleeve body located at the bottom. The umbrella-shaped odor-proof core 1.3 is fixed to the odor-proof core support 1.4 by an odor-proof core cap 1.5. The circumferential edge of the umbrella-shaped odor-proof core 1.3 has a folded edge, which fits tightly against the lower circumference of the odor-proof core support 4. A recessed annular groove is provided at the top of the odor-proof core support 1.4, and a fishbone-shaped filter screen 1.6 is installed in the groove. Cutting grooves are provided at several intervals on the upper part of the extension sleeve body 1.1.

[0037] like Figure 1 and Figure 2 In one embodiment shown, Figure 1 This is a cross-sectional view of a floor drain according to one embodiment of the present invention, which is a high-flow-rate floor drain capable of secondary drainage. Figure 2This is a schematic diagram of the overall structure of an embodiment of a high-flow-rate floor drain with secondary drainage according to this utility model. The purpose of this utility model is to improve drainage efficiency, odor prevention performance, and overall ease of use. Its core design includes an umbrella-shaped odor-proof core, a raised sleeve body, and several functional design components. The overall structure of the floor drain consists of an umbrella-shaped odor-proof core 1.3, an odor-proof core support 1.4, an odor-proof core pressure cap 1.5, a filter screen 1.6, a raised sleeve body 1.1, a plastic panel base 1.2, and a metal panel 1.7. Multiple secondary drainage protrusions 1.1.1 and guide grooves 1.1.2, distributed circumferentially around the inlet, are provided below the raised sleeve body of the floor drain, effectively enhancing the drainage channel. The design of the protrusions and grooves helps prevent debris from clogging the water flow, ensuring smooth water flow. Especially under high flow conditions, the optimization of the secondary drainage system effectively improves drainage efficiency. The raised sleeve design of the floor drain provides more space for drainage, avoiding water flow obstruction or water accumulation caused by improper floor drain structure design, thus improving overall drainage efficiency. This secondary drainage design is particularly suitable for environments with high drainage requirements, such as large bathrooms and commercial spaces, effectively preventing water accumulation problems caused by untimely drainage.

[0038] Furthermore, the umbrella-shaped odor-preventing core 1.3 design effectively handles complex water flow conditions. When there is no water flow, the core is open, with the folded edges tightly fitting the core support to prevent odors from flowing back into the room from the drain pipe. When water flows in, the umbrella-shaped core automatically contracts and closes, ensuring unobstructed water flow without being hindered by its structure. This not only improves drainage capacity but also ensures odor prevention, maintaining good drainage performance even under high-flow conditions.

[0039] In terms of odor prevention, this utility model device adopts a design combining an umbrella-shaped odor-preventing core and an odor-preventing core support. The circumferential edge of the umbrella-shaped odor-preventing core 1.3 has a folded edge, which can fit tightly with the lower circular periphery of the odor-preventing core support 1.4, ensuring effective blocking of sewer odors when there is no water flow. Through this sealing cooperation between the folded edge and the support, the backflow of odors in the air can be minimized, keeping the indoor air fresh. A recessed circular groove is set above the odor-preventing core support 1.4, and a fishbone-shaped filter screen 1.6 is installed in the groove, further improving the filtration and odor prevention effect.

[0040] The application of soft plastic 1.4.1 is also key to enhanced sealing performance. The soft plastic is embedded between the odor-proof core support and the plastic panel base, forming a highly efficient sealing layer. The soft plastic utilizes a secondary injection molding technology, making the sealing effect more durable and effectively preventing water leakage and odor escape. The soft plastic and the odor-proof core support 1.4 are integrated into a single unit, ensuring a seamless design that reduces seal failure caused by friction or aging between components, guaranteeing the odor-proof effect of the drain even after prolonged use.

[0041] Furthermore, the chamfered design between the plastic panel base 1.2 and the metal panel 1.7 further enhances the overall sealing performance. The combination of the metal panel chamfer 1.7.1 and the beveled chamfer 1.2.1 of the plastic base makes the connection between the metal and plastic panels more stable, preventing loosening or leakage caused by external forces. This design not only enhances the structural stability but also further ensures the sealing performance of the floor drain, meeting the needs of long-term, high-frequency use.

[0042] The filter screen features a fishbone design with a central circular hole that connects to the truncated cone on the odor-preventing core support 1.4. This structure effectively traps debris, preventing hair, dust, and other contaminants from entering the drain pipe and reducing the risk of blockage. The fishbone shape not only increases the filtration area but also improves water flow efficiency, preventing blockages from hindering water flow. Furthermore, cleaning the filter screen is easier; users can easily disassemble and clean it, maintaining the drain's long-term performance.

[0043] The cut-out groove design of the raised drain sleeve provides greater flexibility, allowing for appropriate height adjustments to suit different installation environments and match various floor materials and heights. This design simplifies installation and reduces subsequent maintenance costs due to improper installation. The pre-drilled pipe socket at the bottom of the raised sleeve allows for connection to different drainage pipe systems as needed, further enhancing the adaptability and scalability of the drain system.

[0044] The plastic panel base 1.2 features grooved support edges around its perimeter, ensuring a tighter fit between the metal panel and the plastic base and reducing the likelihood of loosening or leaks. The metal panel is slightly higher than the plastic base, with a small difference of 0.5mm to 1.5mm. This not only protects the metal panel from wear during use but also effectively prevents water leakage through the panel seams. This design makes the drain visually smoother and more refined, perfectly matching the décor of modern bathrooms and enhancing the overall aesthetics.

[0045] The umbrella-shaped odor-proof core is made of soft rubber, which provides a soft seal while remaining resistant to deformation or aging even after prolonged use. The integrated design of the soft plastic and the odor-proof core support ensures a consistent seal over extended periods, preventing potential seal failures and thus improving the drain's durability.

[0046] In another embodiment, the plastic panel base 1.2 is provided with a grooved support edge around its lower perimeter, so that the support edge can be cut off as needed; the metal drain panel 1.7 is 1mm higher than the plastic panel base 1.2, and the total protrusion height is adjusted according to the thickness of the floor tiles.

[0047] like Figure 3 In one embodiment shown, Figure 3 This is a schematic diagram of the main structure of the raised sleeve of an embodiment of the present invention, which is a high-flow floor drain with secondary drainage. The raised sleeve body 1.1 of the vertical floor drain has a secondary drainage protrusion 1.1.1 and a guide groove 1.1.2 at its lower part. After the floor drain is installed by inserting it into a DN50 pipe, water accumulating in the gap between the floor drain and the ground can be filtered through the secondary drainage protrusion 1.1.1 to remove impurities such as mud and sand, and then drained through the guide groove 1.1.2. In addition, the raised sleeve body 1.1 of the vertical floor drain has cutting grooves at intervals on its upper part, allowing the raised sleeve to be cut to the required height according to the actual lowering requirements, thereby adjusting the overall height of the floor drain.

[0048] like Figure 4 In one embodiment shown, Figure 4 This is a schematic diagram of the umbrella-shaped anti-odor core structure of an embodiment of a high-flow-rate, secondary-drainage floor drain according to this utility model. The umbrella-shaped anti-odor core 1.3 has a folded edge 1.3.1 around its circumference. The umbrella-shaped anti-odor core 1.3 is fixed to the anti-odor core support 1.4 by an anti-odor core cap 1.5. When there is no water flow, the umbrella-shaped anti-odor core 1.3 is in an open state, and the folded edge 1.3.1 can fit tightly with the circumference of the anti-odor core support 1.4, preventing odor from overflowing from below and achieving an anti-odor effect. When water flows down from above, the umbrella-shaped anti-odor core 1.3, due to its soft rubber material, will contract and close like an umbrella, allowing water to flow through. The outer diameter of the lower circumference of the anti-odor core support 1.4 is smaller than the inner diameter of the upper vertical row 1.1 of the floor drain's raised sleeve body, which allows for panel position adjustment, solving the problem of inaccurate initial positioning and unsatisfactory panel position. During later cleaning, the anti-odor core support 1.4 is removed, and the entire floor drain achieves "full-bore" operation, which is very convenient for later cleaning and maintenance.

[0049] like Figure 5 and Figure 6 In one embodiment shown, Figure 5 This is a schematic diagram of the fishbone-shaped filter screen structure of one embodiment of a high-flow-rate floor drain with secondary drainage according to this utility model. Figure 6 This is a schematic diagram of the odor-proof core support structure of an embodiment of the present invention, a high-flow-rate floor drain with secondary drainage capability. The top of the odor-proof core support 1.4 is designed with a recessed circular groove to accommodate a fishbone-shaped filter screen 1.6. The fishbone-shaped filter screen 1.6 is designed for easy cleaning of hair and other debris, and its central circular hole can be positioned to engage with the truncated cone protrusion on the odor-proof core support 1.4. A soft plastic 1.4.1 is provided around the perimeter of the odor-proof core support 1.4 to seal the gap between the odor-proof core support 1.4 and the plastic panel base 1.2. The soft plastic 1.4.1 is formed by secondary injection molding and is an integral part of the odor-proof core support 1.4.

[0050] like Figure 7 and Figure 8 In one embodiment shown, Figure 7 This is a schematic diagram of the plastic panel base structure of one embodiment of a high-flow-rate floor drain with secondary drainage according to this utility model. Figure 8 This is a schematic diagram of the metal panel structure of one embodiment of a high-flow-rate floor drain with secondary drainage according to this utility model. The plastic panel base 1.2 has grooved support edges around its lower perimeter, allowing for cutting and removing of these support edges as needed. The plastic panel base 1.2 has beveled edges 1.2.1 around its upper perimeter, which cooperate with the metal panel bevel 1.7.1. This beveled structure ensures a stable fit between the floor drain metal panel 1.7 and the plastic panel base 1.2, and after installation, achieves a "frameless floor drain" effect from the floor surface. The floor drain metal panel 1.7 protrudes 1.21mm above the plastic panel base; the total protrusion height is adjusted according to the thickness of the floor tiles.

[0051] This utility model device possesses multiple functions, including excellent drainage, sealing, odor prevention, and cleaning and maintenance, greatly enhancing the user experience and convenience. Firstly, the secondary drainage protrusion 1.1.1 and the guide groove 1.1.2 designed below the main body 1.1 of the floor drain effectively solve the problem of water accumulation between the floor drain and the ground. The secondary drainage protrusion filters out impurities such as mud and sand, ensuring smooth drainage and preventing blockages, while the guide groove further enhances drainage capacity, ensuring timely removal of accumulated water. This design is particularly suitable for places with high-flow-rate drainage needs, such as commercial toilets and large bathrooms, effectively reducing problems such as poor water flow and water accumulation / clogging.

[0052] Secondly, the umbrella-shaped odor-proof core 1.3 is made of soft rubber and fits tightly with the odor-proof core support 1.4 through the folded edge 1.3.1. This effectively prevents odors from overflowing from below when there is no water flow, ensuring fresh indoor air. When water flows, the umbrella-shaped odor-proof core automatically retracts like an umbrella, ensuring smooth water flow without affecting drainage efficiency. This odor-proof core design not only prevents odor backflow but also solves the problems of poor sealing and odor leakage that plagued previous floor drains. Furthermore, the outer diameter of the circular circumference below the odor-proof core support is smaller than the inner diameter of the upper part of the extension sleeve, allowing for precise adjustment of the panel position. This avoids problems caused by inaccurate initial installation and facilitates later cleaning and maintenance, making the floor drain more efficient and convenient to use.

[0053] In addition, the fishbone-shaped filter 1.6 in the floor drain system effectively enhances the filtration function, preventing hair and other debris from clogging the drain pipes and keeping them clear. The fishbone shape makes cleaning easier, allowing users to easily remove attached hair and other impurities. Furthermore, the central circular hole of the filter is fixed to the truncated cone-shaped protrusion of the odor-proof core support, ensuring the filter's stable position and effectively improving the sealing effect of the odor-proof core. The soft plastic 1.4.1 surrounding the odor-proof core support also uses a secondary injection molding technology, forming an integrated design with the support to ensure a tight seal at the gaps, preventing water leakage and odor overflow.

[0054] In terms of design, the chamfered structure between the plastic panel base (1.2) and the metal panel (1.7) of the drain is cleverly combined, making the fit between the metal panel and the plastic base more stable. After installation, the drain presents a "frameless" effect, meeting the aesthetic requirements of modern homes. The plastic panel base has grooved support edges around its perimeter, allowing for cutting and adjustment according to actual needs, improving installation flexibility. The protrusion height of the metal panel can be adjusted according to the thickness of the tiles, ensuring a perfect fit between the drain and the floor, further enhancing the overall aesthetics.

[0055] This utility model is not limited to the above-described embodiments. Any changes made to its shape or material composition, as long as the structural design provided by this utility model is adopted, are considered a variation of this utility model and should be regarded as within the protection scope of this utility model.

Claims

1. A floor drain with a large flow rate and capable of secondary drainage, characterized in that, It includes an umbrella-shaped odor-proof core (1.3) and a drain extension sleeve body located at the bottom. The umbrella-shaped odor-proof core (1.3) is fixed to the odor-proof core support (1.4) by an odor-proof core cap (1.5). The circumferential edge of the umbrella-shaped odor-proof core (1.3) has a folded edge, which fits tightly with the lower circumference of the odor-proof core support (1.4). A sunken circular groove is provided at the top of the odor-proof core support (1.4), and a fishbone-shaped filter screen (1.6) is installed in the groove. Cutting grooves are provided at several intervals on the upper part of the extension sleeve body (1.1).

2. The floor drain with high flow rate and secondary drainage capability according to claim 1, characterized in that, The filter screen (1.6) adopts a fishbone design with a round hole in the center. The round hole is fixed to the truncated cone protrusion on the odor-proof core support (1.4). The inner diameter of the upper part of the heightened sleeve body is larger than the outer diameter of the lower circumference of the odor-proof core support (1.4).

3. A floor drain with high flow rate and secondary drainage as described in claim 1 or 2, characterized in that, The odor-proof core support (1.4) has a soft plastic (1.4.1) around its periphery, and the plastic panel base (1.2) has a recessed stepped circular hole in the center. The stepped circular hole is adapted to the odor-proof core support (1.4), and the gap between the odor-proof core support (1.4) and the plastic panel base (1.2) is sealed by the soft plastic (1.4.1). The soft plastic and the odor-proof core support (1.4) are a whole.

4. A floor drain with high flow rate and secondary drainage capability according to claim 3, characterized in that, The plastic panel base (1.2) has beveled edges (1.2.1) around its upper edge, and the metal panel (1.7) has beveled edges (1.7) around its perimeter. 1.7.1), the metal panel (1.7) is fixed by the metal panel chamfer (1.7.1) and the beveled chamfer (1.2.1) of the plastic panel base (1.2), and the metal panel chamfer (1.7.1) is a beveled chamfer structure.

5. A floor drain with high flow rate and secondary drainage capability according to any one of claims 2 or 4, characterized in that, The umbrella-shaped odor-proof core (1.3) has a folded edge on its circumference; the umbrella-shaped odor-proof core (1.3) is in an open state when there is no water flow, and the folded edge is closely fitted with the circumference of the odor-proof core support (1.4); the umbrella-shaped odor-proof core (1.3) shrinks and closes when there is water flow.

6. A floor drain with high flow rate and secondary drainage capability according to claim 5, characterized in that, The floor drain extension sleeve body (1.1) has several secondary drainage protrusions (1.1.1) distributed around the circumference of the inlet below. The floor drain extension sleeve body (1.1) also has several guide rib grooves (1.1.2) distributed around the circumference of the inlet below. The extension sleeve body (1.1) has an inlet for inserting a pre-reserved drainage pipe for the interlayer below.

7. A floor drain with high flow rate and secondary drainage capability according to claim 3, characterized in that, The umbrella-shaped odor-proof core (1.3) is made of soft rubber, and the soft plastic (1.4.1) is made by secondary injection molding.

8. A floor drain with high flow rate and secondary drainage according to claim 4, characterized in that, The plastic panel base (1.2) has a grooved support edge around its lower perimeter, and the metal panel (1.7) is 0.5mm to 1.5mm higher than the plastic panel base (1.2).

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