Combined double-layer water falling hopper

By designing a combined double-layer drain hopper, adopting a double-layer filtration structure and a rotating movable cover, the problem of single-layer drain hoppers being unable to discharge leaking water is solved, achieving effective discharge of surface water and inner layer leaking water, and improving the performance and convenience of the drainage system.

CN223793682UActive Publication Date: 2026-01-13SCEGC MECHANIZED CONSTR GRP COMPANY
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Patent Information

Application Number
CN202520168393.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2026-01-13
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

Existing single-layer drainage hoppers cannot effectively drain water that seeps into the structural slab or drop slab area, leading to structural leakage, increased indoor humidity, and bacterial growth, which affects structural safety and environmental hygiene.

Method used

A combined double-layer drain hopper was designed, including a drain cover, a filter assembly, and a drain hopper body. It adopts a double-layer filtration structure, which includes a side drainage plate, a filter groove, and a drain core seepage pipe. Combined with a rotating movable cover and a fixed upper cover, it can effectively drain surface water and internal seepage water.

Benefits of technology

It significantly improves drainage performance, prevents leakage, reduces maintenance costs, enhances the performance and ease of use of drainage systems, and is suitable for various building scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a combined type double-layer water falling hopper, and aims to solve the problems that an existing single-layer water falling hopper is poor in drainage effect, easy to block and incapable of effectively discharging leaked accumulated water in a structural plate. The water falling hopper comprises a water falling hopper main body and a filtering assembly, the main body is composed of a floor drain type cover plate and the water falling hopper, and the filtering assembly comprises a side drainage plate, a filtering groove and a floor drain core seepage pipe. The floor drain type cover plate adopts a combined design of a fixed upper cover plate and a rotary movable cover plate, and is convenient to clean and maintain; non-woven fabric isolation protection layers wrap the outer sides of the side drainage plates, and the preliminary filtering effect is achieved; a floor drain core seepage pipe installed in the filter tank is provided with a trap, so that peculiar smell and pests can be prevented from flowing back. Through the double-layer drainage channel and the filtering system, surface accumulated water and inner layer leakage accumulated water are effectively drained, meanwhile, the maintenance cost is reduced, the overall performance of the drainage system is improved, the service life of the drainage system is prolonged, and the drainage system is suitable for various scenes such as roofs, toilets and garage roofs and has wide application prospects.
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Description

Technical Field

[0001] This utility model relates to the field of building construction, and in particular to a combined double-layer drainage hopper. Background Technology

[0002] In the field of building construction, drainage systems are an indispensable and crucial component of buildings, directly impacting their functionality and lifespan. Especially in roof structures and areas with lowered floor slabs, the proper design and construction of drainage systems are vital for preventing leaks, maintaining indoor dryness, and ensuring structural safety. However, existing drainage systems still have numerous problems in these specific areas and urgently need improvement.

[0003] Most downspouts used in building construction are single-layer structures, primarily designed to drain water from the surface of the decorative layer. However, these single-layer downspouts have significant limitations in practical applications. For roof structures, sunken bathrooms, and areas with lowered structural slabs, single-layer downspouts can only drain surface water, failing to effectively remove water that might leak into the structural slab or lowered area. Prolonged water accumulation can lead to varying degrees of leakage in the structural slab, affecting structural quality and safety. Furthermore, indoor water accumulation creates excessive humidity, providing favorable conditions for the growth of bacteria and viruses, increasing the risk of respiratory infections and negatively impacting human health. High humidity also causes mold to grow on furniture and walls, severely affecting the hygiene and aesthetics of the environment. Therefore, existing single-layer downspouts are no longer sufficient to meet the demands of modern building construction in terms of drainage performance and functionality, necessitating a new technological solution to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide a combined double-layer drain hopper to overcome the shortcomings of existing single-layer drain hoppers, such as poor drainage effect, easy clogging, and inability to effectively drain water seepage and accumulation inside the structural slab.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A combined double-layer drain hopper includes a drain hopper body and a filter assembly;

[0007] The main body of the drain hopper includes a drain cover and a drain hopper. The drain cover is located above the filter assembly, and the drain hopper is connected to the bottom of the filter assembly.

[0008] The filter assembly includes a side drainage plate, the upper end of which is connected to a floor drain cover and the lower end of which is connected to a drain hopper. A filter tank is installed inside the side drainage plate, the upper end of which is connected to the floor drain cover, and a floor drain core seepage pipe is installed inside the filter tank.

[0009] The drain cover includes a fixed upper cover and a rotating movable cover, which can be rotatably fixed to the fixed upper cover.

[0010] The fixed top cover is a circular structure, with its outer ring connected to the side drainage plate and its inner ring connected to the filter tank.

[0011] The filter tank is suspended at the bottom of the rotating movable cover.

[0012] Both the fixed top cover and the rotating movable cover are machined into a hollow or perforated filter cartridge shape.

[0013] The side drainage panels are wrapped with a non-woven fabric isolation and protective layer.

[0014] An external drain pipe is connected to the bottom of the drain hopper.

[0015] The drain core includes a pipe body and a water trap. The upper end of the pipe body is installed in the filter tank, and the water trap is connected to the lower part of the pipe body.

[0016] A hidden handle is fixed on the upper side of the filter tank.

[0017] The drain hopper is fixed to the side drainage plate by flange bolts.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] This invention effectively overcomes the limitations of existing single-layer drain hoppers through its double-layer design. Single-layer drain hoppers can only drain water from the surface of the decorative layer, failing to handle water seeping into the structural slab or recessed area. This can easily lead to structural leaks, affecting structural safety, and also increase indoor humidity, promoting the growth of bacteria and mold. In contrast, the double-layer structure of this invention can simultaneously drain surface water and seeping water from the inner layer, significantly improving the performance of the drainage system.

[0020] Furthermore, this invention employs a dual-layer filtration design, with the filtration assembly including a side drainage plate, a filter tank, and a drain core. The side drainage plate is wrapped with a non-woven fabric protective layer, which provides initial filtration and isolation of dust; the drain core installed within the filter tank further filters the water flow. This design effectively prevents debris from clogging the drainage channels, extending the service life of the drainage system.

[0021] The drain cover features a combination of a fixed top cover and a rotating movable cover, allowing users to easily open the rotating movable cover for cleaning and maintenance of the filter tank without disassembling the entire cover. This design improves ease of maintenance and reduces maintenance costs.

[0022] The built-in water trap design of the drain core effectively prevents odors and pests from flowing back into the room through the drainage channel, thereby ensuring indoor air quality and improving the hygiene and comfort of the environment.

[0023] This utility model's combined double-layer drain hopper has a wide range of applications, suitable for various scenarios such as roofs, bathrooms, and garage roofs. Its installation method is simple, highly practical, and can meet the needs of different construction fields.

[0024] Through innovative design and structure, this utility model achieves effective drainage of water accumulated inside the floor slab and has functions such as bending to stop water and ventilate, and rotating to disassemble and assemble, thereby improving the overall performance and ease of use of the drainage system and providing an efficient and reliable drainage solution. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a combined double-layer water hopper in an embodiment of this utility model.

[0026] Figure 2 This is a schematic diagram of the upper connection relationship of a combined double-layer water hopper in an embodiment of this utility model.

[0027] Figure 3 This is a front view of a combined double-layer water hopper in an embodiment of this utility model.

[0028] Figure 4 This is a top view of a combined double-layer water hopper in an embodiment of the present utility model.

[0029] In the diagram, 1. Fixed top cover, 2. Rotary movable cover, 3. Side drainage plate, 4. Non-woven fabric isolation protective layer, 5. Water hopper, 6. Filter tank, 7. Floor drain core seepage pipe, 8. External drainage pipe, 9. Water trap, 10. Clamp. Detailed Implementation

[0030] In the field of building construction, drainage systems are an indispensable and crucial component of buildings, directly impacting their functionality and lifespan. Especially in roof structures and areas with lowered floor slabs, the proper design and construction of drainage systems are vital for preventing leaks, maintaining indoor dryness, and ensuring structural safety. However, existing drainage systems still have numerous problems in these specific areas and urgently need improvement.

[0031] Most downspouts used in building construction are single-layer structures, primarily designed to drain water from the surface of the decorative layer. However, these single-layer downspouts have significant limitations in practical applications. For roof structures, sunken bathrooms, and areas with lowered structural slabs, single-layer downspouts can only drain surface water, failing to effectively remove water that might leak into the structural slab or lowered area. Prolonged water accumulation can lead to varying degrees of leakage in the structural slab, affecting structural quality and safety. Furthermore, indoor water accumulation creates excessive humidity, providing favorable conditions for the growth of bacteria and viruses, increasing the risk of respiratory infections and negatively impacting human health. High humidity also causes mold to grow on furniture and walls, severely affecting the hygiene and aesthetics of the environment. Therefore, existing single-layer downspouts are no longer sufficient to meet the demands of modern building construction in terms of drainage performance and functionality, necessitating a new technological solution to address these issues.

[0032] This application proposes a combined double-layer downspout, which aims to overcome the shortcomings of existing single-layer downspouts. Through innovative design and structure, it achieves effective drainage of water accumulated inside the floor slab and has functions such as bending to stop water and ventilate, and rotating to disassemble and assemble, thereby improving the overall performance and ease of use of the drainage system and providing a more efficient and reliable drainage solution for the building construction field.

[0033] 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.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0037] Reference Figures 1 to 4 The diagram shown is a structural schematic of a combined double-layer downspout according to a specific embodiment of this application. The downspout includes a downspout body and a filter assembly;

[0038] The main body of the drain hopper includes a floor drain cover and a drain hopper 5. The floor drain cover is located above the filter assembly, and the drain hopper 5 is connected to the bottom of the filter assembly to guide water flow out.

[0039] The filter assembly includes a side drainage plate 3, the upper end of which is connected to a floor drain cover and the lower end of which is connected to a drain hopper 5. A filter tank 6 is installed inside the side drainage plate 3, the upper end of which is connected to the floor drain cover and a floor drain core seepage pipe 7 is installed inside the filter tank 6.

[0040] The drain cover includes a fixed upper cover 1 and a rotating movable cover 2. The rotating movable cover 2 is rotatably fixed on the fixed upper cover 1, which facilitates disassembly and cleaning of the filter tank 6.

[0041] The fixed top cover 1 is a circular structure, with its outer ring connected to the side drainage plate 3 and its inner ring connected to the filter tank 6.

[0042] The filter tank 6 is suspended at the bottom of the rotating movable cover 2.

[0043] Both the fixed top cover plate 1 and the rotating movable cover plate 2 are processed into a hollow or perforated filter cylinder shape.

[0044] The side drainage plate 3 is wrapped with a non-woven fabric isolation protective layer 4, which plays a role in preliminary filtration and isolation of dust.

[0045] An external drain pipe 8 is connected below the drain hopper 5 to discharge the filtered water into the building's drainage system.

[0046] The drain core includes a pipe body and a water trap 9. The upper end of the pipe body is installed in the filter tank 6, and the water trap 9 is connected to the lower part of the pipe body to prevent odors and pests from flowing back.

[0047] A hidden handle is fixed on the upper side of the filter tank 6 for easy cleaning and maintenance.

[0048] The drain hopper 5 is fixed to the side drainage plate 3 by flange bolts to ensure a firm connection and good sealing.

[0049] To make the combined double-layer drainage hopper of this application easier to understand, the following explanation will be provided in conjunction with a specific implementation scenario.

[0050] Before pouring concrete for the roof or floor structural slabs, pre-embed sleeves and reserve drainage openings. The dimensions of the pre-embedded sleeves must be selected according to the specifications of the downspout, ensuring they match the external downpipe of the downspout body. After pre-embedding, pour concrete, ensuring the concrete around the openings is dense to prevent leakage.

[0051] Before constructing the building's decorative layer, the main body of the drain hopper is fixedly connected to the side drainage plate 3 using flange bolts. The side drainage plate 3 features a hollow design; during installation, it is essential to ensure a secure connection between it and the main body of the drain hopper, guaranteeing unobstructed drainage. A layer of non-woven fabric protective layer 4 is wrapped around the outside to provide initial filtration and dust isolation. Subsequently, the entire drain hopper is fixed in the pre-drilled opening, ensuring accurate positioning and horizontal stability.

[0052] The external downpipe 8 is made of PVC or UPVC material and connects to the drain outlet at the bottom of the downpipe body using clamps. Ensure the clamps are secure during connection to prevent water leakage. The other end of the external downpipe 8 connects to the building's drainage system to ensure smooth water flow.

[0053] The installation of the filter assembly includes the side drain plate 3, the non-woven fabric protective layer 4, the drain core 7, and the filter tray 6. The side drain plate 3 and the non-woven fabric protective layer 4 were completed during the installation of the main drain hopper. Next, the drain core 7 and the filter tray 6 are installed. The drain core 7 has a built-in U-shaped water trap 9. During installation, it must be ensured that it is placed vertically, with the water trap located at the lowest point of the drainage channel to prevent odor backflow. The filter tray 6 is installed at the inlet of the drain core 7 and secured with hooks or clips to ensure that it does not loosen when water flows through it.

[0054] The drain cover consists of a fixed upper cover 1 and a rotating movable cover 2. The fixed upper cover 1 is installed during the construction of the decorative layer and is fixed to the surface of the decorative layer with bolts, ensuring that it is flush with the surrounding decorative surface, aesthetically pleasing, and does not affect normal use. The rotating movable cover 2 is installed above the fixed upper cover 1 and is connected to the main body of the drain hopper via a rotating movable buckle. This design allows users to easily open the rotating movable cover 2 without disassembling the entire cover to clean and maintain the filter tank 6.

[0055] During the decorative construction of the roof or lowered slab area, adjust the height of the side drainage board 3 according to actual usage needs to ensure it can effectively collect surface water. After the decorative surface layer is completed, check the overall installation of the drain hopper to ensure there are no blockages or leaks. When used on the roof, the drain hopper can also serve as a vent to remove water vapor from the insulation layer and protect the waterproof layer.

[0056] During use, the combined double-layer drain of this utility model allows users to periodically clean debris from the filter tank 6 by rotating the movable cover 2, ensuring unobstructed drainage. Due to the double-layer filtration design, the cleaning frequency of the filter tank 6 is relatively low, significantly reducing maintenance costs. Simultaneously, the U-shaped water trap 9 effectively prevents odors and pests from entering the room, ensuring indoor air quality.

[0057] Through the above implementation steps, the combined double-layer downspout of this utility model can effectively solve the shortcomings of existing single-layer downspouts, achieving the following functions and advantages: the double-layer drainage channel effectively drains surface water and inner layer seepage water, preventing structural slab leakage; the double-layer filtration design prevents debris from clogging the drainage channel, extending service life; the rotating movable cover facilitates cleaning of the filter tank, improving maintenance convenience; it has a wide range of applications, suitable for roofs, bathrooms, garage roofs, and other scenarios, with simple installation and strong practicality. In summary, the combined double-layer downspout of this utility model has a reasonable structure, is easy to install and maintain, and can effectively improve the performance and service life of building drainage systems, possessing broad application prospects.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A combined double-layer drainage hopper, characterized in that, Includes the main body of the drain hopper and the filter components; The main body of the drain hopper includes a floor drain cover and a drain hopper (5). The floor drain cover is located above the filter assembly, and the drain hopper (5) is connected to the bottom of the filter assembly. The filter assembly includes a side drainage plate (3), the upper end of which is connected to a floor drain cover and the lower end of which is connected to a drain hopper (5). A filter groove (6) is installed inside the side drainage plate (3), the upper end of which is connected to a floor drain cover and a floor drain core seepage pipe (7) is installed inside the filter groove (6).

2. The combined double-layer drainage hopper according to claim 1, characterized in that, The drain cover includes a fixed upper cover (1) and a rotating movable cover (2), wherein the rotating movable cover (2) is rotatably fixed on the fixed upper cover (1).

3. A combined double-layer drainage hopper according to claim 2, characterized in that, The fixed top cover (1) is a ring structure, with its outer ring connected to the side drainage plate (3) and its inner ring connected to the filter tank (6).

4. A combined double-layer drainage hopper according to claim 2, characterized in that, The filter tank (6) is suspended at the bottom of the rotating movable cover plate (2).

5. A combined double-layer drainage hopper according to claim 2, characterized in that, Both the fixed top cover plate (1) and the rotating movable cover plate (2) are processed into a hollow or perforated filter cylinder shape.

6. A combined double-layer drainage hopper according to claim 1, characterized in that, The side drainage board (3) is wrapped with a non-woven fabric isolation protective layer (4).

7. A combined double-layer drain hopper according to claim 1, characterized in that, An external drain pipe (8) is connected below the water dropper (5).

8. A combined double-layer drain hopper according to claim 1, characterized in that, The drain core includes a pipe body and a water trap (9). The upper end of the pipe body is installed in the filter tank (6), and the water trap (9) is connected to the lower part of the pipe body.

9. A combined double-layer drain hopper according to claim 1, characterized in that, A hidden handle is fixed on the upper side of the filter tank (6).

10. A combined double-layer drainage hopper according to claim 1, characterized in that, The drain hopper (5) is fixed to the side drainage plate (3) by flange bolts.