A connecting piece for wall drain
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU BAOLILAI SANITARY WARE CO LTD
- Filing Date
- 2025-07-26
- Publication Date
- 2026-06-12
AI Technical Summary
Existing floor drains cannot accommodate both 40mm and 50mm drain pipes, resulting in high production costs and making it difficult for consumers to choose the appropriate drain connector, thus affecting construction schedules and user experience.
Design an L-shaped connector comprising a first pipe section with a smaller diameter and a second pipe section with a larger diameter, equipped with multiple sealing grooves and sealing rings, using a threaded connection to the drain body, combined with an easy-cut groove and guide surface, to adapt to drain pipes of different sizes.
It enables a single connector to adapt to different sizes of drain pipes, reducing production costs, improving user convenience and sealing reliability, preventing leakage and odor backflow, simplifying construction, and improving assembly efficiency.
Smart Images

Figure CN224351370U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of floor drain technology, and specifically refers to a connector for a wall-mounted floor drain. Background Technology
[0002] A floor drain is a drainage component that directs water from the indoor floor to the sewer pipe. Traditional floor drains are installed on the floor, and dirt and mold can easily accumulate at the joint between the floor drain and the tiles. In addition, traditional floor drain pipes often need to penetrate the floor slab, so leaks can affect downstairs neighbors and pose a risk of claims. In case of leakage, repairs also require the cooperation of downstairs neighbors, which is quite troublesome.
[0003] To address the aforementioned issues, utility model application number 201120038824.X discloses a linear floor drain. The main body of the linear floor drain extends downward to form a downward-curved edge. The outer side of the downward-curved edge is detachably connected to a horizontal drainage connector for achieving same-floor drainage or a downward drainage connector for achieving cross-floor drainage via a sealing ring. The drainage connector can be a horizontal drainage connector. When the downward-curved edge is connected to the horizontal drainage connector, the floor drain is configured as a same-floor drainage floor drain.
[0004] Although the aforementioned linear floor drains achieve wall-mounted installation, floor drains in home decoration on the market are generally connected to 40 or 50 pipes. Existing drainage connectors cannot accommodate both sizes of drain pipes, requiring manufacturers to produce two different sizes of drainage connectors, which increases production costs. Furthermore, the size difference between the two sizes of drain pipes is not significant, and consumers often cannot correctly know the size of the drainage connector they need. If they buy the wrong one, they need to return it and repurchase it, which is not only troublesome but also affects the construction period. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a connector that can adapt to two sizes of drain pipes.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] A connector for a wall-mounted floor drain is characterized by comprising a vertical connecting part connected to the drain body and a horizontal connecting part connected to a drain pipe, wherein the vertical connecting part and the horizontal connecting part form an L-shaped drainage channel, the vertical connecting part is perpendicular to the horizontal connecting part, and the horizontal connecting part comprises a first pipe section and a second pipe section, wherein the diameter of the first pipe section is smaller than the diameter of the second pipe section, the inner end of the first pipe section is connected to the side wall of the lower part of the vertical connecting part, and the outer end of the first pipe section is fixedly connected to the inner end of the second pipe section.
[0008] The connector of this utility model features a transverse connection consisting of a first pipe segment with a smaller diameter and a second pipe segment with a larger diameter, which are fixedly connected. This design allows a single connector to be adapted to a smaller-sized drain pipe (e.g., a 40mm pipe) via its first pipe segment, or to a larger-sized drain pipe (e.g., a 50mm pipe) via its second pipe segment. This structure effectively solves the problem of increased production costs caused by manufacturers having to produce different connectors for different pipe diameters, while also preventing consumers from choosing the wrong model due to similar pipe diameters, leading to returns and delays. It achieves "multi-purpose functionality" and significantly improves the product's versatility and user convenience.
[0009] In the aforementioned wall-mounted floor drain connector, an annular first sealing groove is provided on the outer peripheral wall of the first pipe section, and a first sealing ring is provided on the first sealing groove; a second sealing groove is provided on the outer peripheral wall of the second pipe section, and a second sealing ring is provided on the second sealing groove.
[0010] A first sealing groove and a second sealing groove are respectively provided on the outer peripheral walls of the first and second pipe sections, and a first sealing ring and a second sealing ring are installed accordingly. When the connector is inserted into the drain pipe of the corresponding size (40 or 50 pipe), a reliable radial seal is formed by the sealing ring at the corresponding position. This not only effectively prevents sewage from leaking from the connection, but more importantly, it prevents the odor of the drain pipe from overflowing into the room through the connection gap, significantly improving the odor prevention effect and environmental hygiene of the floor drain system. At the same time, this design makes the assembly of the connector and the drain pipe simpler and more convenient, and can be directly plugged in, reducing the construction difficulty and improving the assembly efficiency. Moreover, the sealing stability after assembly is high, and there is no problem of poor sealing of the connector and drain pipe due to the operator's lack of skill or carelessness (in the traditional method of connecting by applying glue, if the operator applies glue unevenly or the glue quality is poor, the sealing of the connection may be poor).
[0011] In the above-mentioned wall-mounted floor drain connector, there are at least two first sealing grooves and two second sealing grooves. The first sealing grooves are spaced apart along the axial direction of the first pipe section, and the second sealing grooves are spaced apart along the axial direction of the second pipe section. Each first sealing groove is provided with a first sealing ring, and each second sealing groove is provided with a second sealing ring.
[0012] The first and second sealing grooves are each set to at least two and are distributed at intervals along the axial direction of their respective pipe sections. Each groove is equipped with a sealing ring. This multi-seal groove and sealing ring structure design can form multiple sealing barriers at the connection between the connector and the drain pipe. This further enhances the sealing reliability of the connection, effectively reduces the risk of leakage or backflow of odor due to the failure of a single seal, and improves the durability and long-term odor prevention performance of the product.
[0013] In the aforementioned wall-mounted floor drain connector, an annular easy-cut groove is provided at the connection between the first pipe section and the second pipe section.
[0014] The easy-cut groove structure used in this connector allows construction workers to easily cut off the unwanted second pipe section simply by following the easy-cut groove when the user only needs to use the first pipe section. This helps to fix the cutting position and makes it convenient for construction workers to operate.
[0015] In the above-mentioned wall-mounted floor drain connector, the cross-section of the easy-cut groove is fan-shaped, the outer wall of the easy-cut groove is the inner end face of the second pipe section, the inner wall of the easy-cut groove is arc-shaped and is set on the first pipe section, and the lower end of the inner wall is connected to the lower end of the outer wall.
[0016] This connector utilizes a specific fan-shaped cross-section and an inner and outer groove wall structure, providing a clear cutting guide line. This greatly optimizes the convenience and accuracy of the cutting operation, allowing users to easily and neatly cut along the groove using ordinary tools, avoiding uneven cuts that could affect subsequent connections or seals. Simultaneously, the curved inner groove wall after cutting also provides a guiding function, facilitating the insertion of the first pipe section into the corresponding drain pipe.
[0017] In the aforementioned wall-mounted floor drain connector, an arc-shaped guide surface is provided at the outer end of the second pipe section.
[0018] The use of this arc-shaped guide surface structure can effectively guide the second pipe section when it is inserted into the drain pipe. The guide surface can smoothly contact the inner edge of the pipe wall, reduce insertion resistance, and prevent the sealing ring from being scratched, folded or damaged during the insertion process. This ensures that the sealing ring is in place smoothly and remains intact, improves installation efficiency and guarantees the sealing effect.
[0019] In the aforementioned wall-mounted floor drain connector, the upper part of the vertical connecting part is provided with an internal or external thread that connects to the floor drain body.
[0020] The threaded connection structure ensures a firm and reliable connection between the connector and the drain body, while also facilitating installation and disassembly, providing convenience for subsequent maintenance or replacement. The excellent connection sealing also helps prevent leakage and odor from escaping from the interface.
[0021] In the aforementioned wall-mounted floor drain connector, the connection between the inner sidewall and the inner bottom surface of the vertical connector is arc-shaped.
[0022] The use of this arc-shaped transition structure can effectively improve the flow state of water when it enters the vertical connection part of the connector from the main body of the drain. The arc structure reduces the water flow resistance caused by right-angle turns, reduces the generation of turbulence and local eddies, and helps sewage flow more smoothly into the horizontal drainage channel, reducing the possibility of dirt accumulating here, thereby reducing the risk of blockage.
[0023] In the aforementioned wall-mounted floor drain connector, the outer peripheral wall of the vertical connector is provided with a number of anti-slip patterns spaced circumferentially.
[0024] The aforementioned anti-slip pattern design can increase the friction when construction workers rotate the connector in the circumferential direction, which can prevent the connector from slipping during installation. Since the operating space is limited when installing the connector under certain working conditions, greater friction is more beneficial for construction workers during installation.
[0025] Compared with the prior art, the technical effects of this utility model are as follows:
[0026] This invention enables a single connector to be adapted to smaller-sized (e.g., 40mm) drain pipes via its first pipe section, or to larger-sized (e.g., 50mm) drain pipes via its second pipe section. This effectively solves the problem of increased production costs caused by manufacturers having to produce different connectors for different pipe diameters in the prior art. At the same time, it avoids the trouble of consumers choosing the wrong model due to similar pipe diameters, resulting in returns and delays in the construction period. It achieves "one product for multiple uses" and significantly improves the product's versatility and user convenience. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0028] Figure 2 This is an overall sectional view of the present invention.
[0029] Figure 3 This is a front view of the present invention.
[0030] Figure 4 This is a top view of the present invention.
[0031] Figure 5 yes Figure 2 A magnified view of a portion of point A in the middle.
[0032] In the figure, 1. Vertical connection; 11. Internal thread; 12. Inner sidewall; 13. Inner bottom surface; 14. Anti-slip pattern; 2. First pipe section; 21. First sealing groove; 22. First sealing ring; 23. Easy-cut groove; 231. Outer groove wall; 232. Inner groove wall; 3. Second pipe section; 31. Second sealing groove; 32. Second sealing ring; 33. Guide surface; 4. Drainage channel. Detailed Implementation
[0033] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0034] The connecting parts of this wall-mounted floor drain include a vertical connecting part 1 connected to the main body of the floor drain and a horizontal connecting part connected to the drain pipe. The vertical connecting part 1 and the horizontal connecting part form an L-shaped drainage channel 4. The vertical connecting part 1 is perpendicular to the horizontal connecting part. The horizontal connecting part includes a first pipe section 2 and a second pipe section 3. The diameter of the first pipe section 2 is smaller than the diameter of the second pipe section 3. The inner end of the first pipe section 2 is connected to the lower side wall of the vertical connecting part 1, and the outer end of the first pipe section 2 is fixedly connected to the inner end of the second pipe section 3.
[0035] The connector of this utility model features a transverse connection consisting of a first pipe section 2 with a smaller diameter and a second pipe section 3 with a larger diameter. This design allows a single connector to be adapted to smaller-sized (e.g., 40mm) drain pipes via its first pipe section 2, or to larger-sized (e.g., 50mm) drain pipes via its second pipe section 3. This structure effectively solves the problem of increased production costs for manufacturers due to the need to produce different connectors for different pipe diameters in existing technologies. It also avoids the inconvenience of consumers choosing the wrong model due to similar pipe diameters, leading to returns and delays. This achieves "multi-purpose functionality," significantly improving the product's versatility and user convenience.
[0036] like Figure 1-4 As shown, an annular first sealing groove 21 is provided on the outer peripheral wall of the first pipe section 2, and a first sealing ring 22 is provided on the first sealing groove 21. A second sealing groove 31 is provided on the outer peripheral wall of the second pipe section 3, and a second sealing ring 32 is provided on the second sealing groove 31. A first sealing groove 21 and a second sealing groove 31 are respectively provided on the outer peripheral walls of the first pipe section 2 and the second pipe section 3, and a first sealing ring 22 and a second sealing ring 32 are installed accordingly. When the connector is inserted and connected to the drain pipe of the corresponding size (40 pipe or 50 pipe), a reliable radial seal is formed by the sealing rings at the corresponding positions. This not only effectively prevents sewage from leaking from the connection, but more importantly, it prevents the odor of the drain pipe from overflowing into the room through the connection gap, significantly improving the odor prevention effect and environmental hygiene of the floor drain system. At the same time, this design makes the assembly of the connector and the drain pipe simpler and more convenient, and can be directly plugged in, reducing the construction difficulty and improving the assembly efficiency. Moreover, the sealing stability after assembly is high, and there is no problem of poor sealing of the connector and drain pipe due to the operator's lack of skill or carelessness (in the traditional connection method of applying glue, if the operator applies glue unevenly or the glue quality is poor, the sealing of the connection may be poor).
[0037] Furthermore, there are at least two first sealing grooves 21 and two second sealing grooves 31. The first sealing grooves 21 are spaced apart along the axial direction of the first pipe segment 2, and the second sealing grooves 31 are spaced apart along the axial direction of the second pipe segment 3. Each first sealing groove 21 contains a first sealing ring 22, and each second sealing groove 31 contains a second sealing ring 32. The presence of at least two first sealing grooves 21 and two sealing grooves 31, distributed axially along their respective pipe segments, and the installation of a sealing ring in each groove, creates a multi-layered sealing barrier at the connection between the connector and the drain pipe. This further enhances the sealing reliability of the connection, effectively reduces the risk of leakage or odor return due to a single seal failure, and improves the product's durability and long-term odor-proof performance.
[0038] like Figure 2-5 As shown, an annular easy-cut groove 23 is provided at the connection between the first pipe segment 2 and the second pipe segment 3. The cross-section of the easy-cut groove 23 is fan-shaped. The outer groove wall 231 of the easy-cut groove 23 is the inner end face of the second pipe segment 3, and the inner groove wall 232 of the easy-cut groove 23 is arc-shaped and located on the first pipe segment 2. The lower end of the inner groove wall 232 is connected to the lower end of the outer groove wall 231. The use of this easy-cut groove 23 structure in this connector allows construction personnel to easily cut off the unwanted second pipe segment 3 simply by following the easy-cut groove 23 when the user only needs to use the first pipe segment 2. This facilitates fixing the cutting position and makes the operation easier for construction personnel. The specific fan-shaped cross-section and the connection between the inner and outer groove walls 231 in this connector provide a clear cutting guide line, which greatly optimizes the convenience and accuracy of the cutting operation. Users can easily and neatly complete the cutting along the groove using ordinary tools, avoiding uneven cuts that may affect subsequent connections or sealing. Meanwhile, the arc-shaped inner groove wall 232 after cutting can also have a certain guiding function, making it convenient for the first pipe section 2 to be connected to the corresponding drain pipe.
[0039] Furthermore, an arc-shaped guide surface 33 is provided at the outer end of the second pipe section 3. This arc-shaped guide surface 33 effectively guides the second pipe section 3 when it is inserted into the drain pipe. The guide surface 33 smoothly contacts the edge of the inner wall of the pipe, reducing insertion resistance and preventing the sealing ring from being scratched, folded, or damaged during insertion. This ensures the sealing ring is properly positioned and remains intact, improving installation efficiency and guaranteeing a good seal.
[0040] like Figure 1 and Figure 2 As shown, the upper part of the vertical connecting part 1 is provided with an internal thread 11 or an external thread for connecting to the drain body. The threaded connection structure enables a firm and reliable connection between the connector and the drain body, while facilitating installation and disassembly, providing convenience for subsequent maintenance or replacement. The good connection sealing also helps prevent leakage and odor escape at the interface.
[0041] like Figure 2 and Figure 4 As shown, the connection between the inner wall 12 and the inner bottom surface 13 of the vertical connecting part 1 is arc-shaped. This arc-shaped transition structure effectively improves the flow of water as it enters the vertical connecting part 1 from the drain body. The arc structure reduces the water flow resistance caused by right-angle turns, lowers turbulence and local eddies, and helps sewage flow more smoothly into the horizontal drainage channel 4, reducing the possibility of dirt accumulation and thus lowering the risk of blockage.
[0042] like Figure 1 and Figure 3 As shown, a number of anti-slip patterns 14 are provided at intervals along the circumference on the outer peripheral wall of the vertical connecting part 1. The design of the anti-slip patterns 14 can increase the friction when the construction personnel rotate the connecting part in the circumferential direction, and can prevent the connecting part from slipping during installation. Since the operating space is limited when installing the connecting part under certain working conditions, greater friction is more conducive to the construction personnel's installation.
[0043] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection defined by the claims of the present utility model.
Claims
1. A connector for a wall-mounted floor drain, characterized in that: It includes a vertical connecting part (1) connected to the main body of the floor drain and a horizontal connecting part connected to the drain pipe. The vertical connecting part (1) and the horizontal connecting part form an L-shaped drainage channel (4). The vertical connecting part (1) is perpendicular to the horizontal connecting part. The horizontal connecting part includes a first pipe section (2) and a second pipe section (3). The diameter of the first pipe section (2) is smaller than the diameter of the second pipe section (3). The inner end of the first pipe section (2) is connected to the side wall of the lower part of the vertical connecting part (1). The outer end of the first pipe section (2) is fixedly connected to the inner end of the second pipe section (3).
2. The connector for a wall-mounted floor drain according to claim 1, characterized in that: The outer peripheral wall of the first pipe section (2) is provided with an annular first sealing groove (21) and a first sealing ring (22) is provided on the first sealing groove (21). The outer peripheral wall of the second pipe section (3) is provided with a second sealing groove (31) and a second sealing ring (32) is provided on the second sealing groove (31).
3. The connector for a wall-mounted floor drain according to claim 2, characterized in that: There are at least two of the first sealing groove (21) and the second sealing groove (31). The first sealing groove (21) is spaced apart along the axial direction of the first pipe section (2), and the second sealing groove (31) is spaced apart along the axial direction of the second pipe section (3). Each first sealing groove (21) is provided with a first sealing ring (22), and each second sealing groove (31) is provided with a second sealing ring (32).
4. The connector for a wall-mounted floor drain according to claim 1, characterized in that: An annular easy-cut groove (23) is provided at the connection between the first pipe section (2) and the second pipe section (3).
5. A connector for a wall-mounted floor drain according to claim 4, characterized in that: The cross-section of the easy-cut groove (23) is fan-shaped. The outer groove wall (231) of the easy-cut groove (23) is the inner end face of the second pipe section (3). The inner groove wall (232) of the easy-cut groove (23) is arc-shaped and is set on the first pipe section (2). The lower end of the inner groove wall (232) is connected to the lower end of the outer groove wall (231).
6. A connector for a wall-mounted floor drain according to any one of claims 1-5, characterized in that: An arc-shaped guide surface (33) is provided at the outer end of the second pipe section (3).
7. A connector for a wall-mounted floor drain according to any one of claims 1-5, characterized in that: The upper part of the vertical connecting part (1) is provided with an internal thread (11) or an external thread that connects to the drain body.
8. A connector for a wall-mounted floor drain according to any one of claims 1-5, characterized in that: The connection between the inner wall (12) and the inner bottom surface (13) of the vertical connecting part (1) is arc-shaped.
9. A connector for a wall-mounted floor drain according to any one of claims 1-5, characterized in that: The outer peripheral wall of the vertical connecting part (1) is provided with a number of anti-slip patterns (14) at intervals along the circumference.