Water seal pipe fitting

By designing and adapting water seal pipe fittings of different specifications, the problems of odor flow and high costs in rainfall pipes are solved, cost reduction and odor barrier effects are achieved, and the flexibility of system design and installation is improved.

CN223281405UActive Publication Date: 2025-08-29GUANGDONG LIANSU TECH INDAL
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Patent Information

Application Number
CN202422377128.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-27
Publication Date
2025-08-29
Estimated Expiration
2034-09-27

AI Technical Summary

Technical Problem

There are many specifications of existing rainfall pipes, and water storage bends of different specifications need to be prepared, which leads to high costs and the problem of odor flowing is difficult to effectively solve.

Method used

A water seal pipe fitting is designed, including an inlet, a water seal and a water outlet. The inlet can be cut and adapted to pipes of different specifications. The limiting part ensures stable connection. The water outlet forms a water seal to block odor, and is formed by blow molding.

Benefits of technology

It realizes universal adaptation with multiple specifications of pipes, reduces costs, effectively blocks odors, reduces inventory and material requirements, and improves installation efficiency and system design flexibility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of drainage pipelines, in particular to a water seal pipe fitting which comprises an inlet portion, a water seal portion and a water outlet portion, the interiors of the inlet portion, the water seal portion and the water outlet portion are of hollow structures, an opening is formed in the upper end of the inlet portion, the cross section area of the upper end of the inlet portion is smaller than that of the lower end of the inlet portion, and the lower end of the inlet portion is communicated with the water seal portion. The water seal part is communicated with the water outlet part, the bottom end of the water outlet part is higher than the top end of the water seal part, a pipeline is inserted into and penetrates through the inlet part, rainwater flows in and flows through the water seal part from the pipeline, part of the rainwater is reserved in the water seal part, and the rest of the rainwater flows out from the water outlet part. The utility model aims to overcome the defects in the prior art, and provides a water seal pipe fitting which can be matched with pipe fittings of various specifications so as to prevent peculiar smell from flowing during rainwater recovery and reduce the cost.
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Description

Technical Field

[0001] The utility model relates to the technical field of drainage pipes, and more particularly to a water seal pipe fitting. Background Art

[0002] Amidst the wave of environmental protection and sustainable development, rainwater drainage systems are gradually shifting from their traditional function of simply draining rainwater to a more comprehensive and efficient resource recycling approach. This shift not only helps reduce the risk of urban flooding, but also effectively replenishes urban water resources and promotes ecological balance. However, as rainwater recycling practices deepen, new challenges arise. Recycled and stored rainwater for extended periods often produces unpleasant odors that are released into the surrounding environment through the rainwater drainage system, impacting residents' quality of life. Therefore, when designing rainwater recycling systems, it is important to consider how the water is stored and treated to prevent water quality deterioration and the spread of odors.

[0003] Existing technologies often solve the problem of odor leakage by installing water traps on the pipe system. However, there are many specifications of rainwater downpipes. In order to adapt to rainwater downpipes of different specifications, water traps of different specifications need to be installed accordingly, which is costly. This problem limits the application of rainwater recycling technology in a wider range. Utility Model Content

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art that rainwater drainage pipes have many specifications and need to prepare water traps of different specifications, resulting in high costs, and to provide a water-sealing pipe fitting that can be adapted to pipe fittings of various specifications to avoid the flow of odor when rainwater is recovered and reduce costs.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A water seal pipe fitting is provided, comprising an inlet portion, a water seal portion, and a water outlet portion, all of which are hollow structures. The upper end of the inlet portion is provided with an opening, and the cross-sectional area of ​​the upper end is smaller than the cross-sectional area of ​​the lower end. The lower end of the inlet portion is communicated with the water seal portion, and the water seal portion is communicated with the water outlet portion. The bottom end of the water outlet portion is arranged higher than the top end of the water seal portion, and a pipe is inserted into and passes through the inlet portion. Rainwater flows in from the pipe, flows through the water seal portion, and part of the rainwater is retained in the water seal portion, while the rest of the rainwater flows out from the water outlet portion.

[0007] The cross-sectional area of ​​the lower end of the inlet portion of the present invention is larger than that of the upper end. The upper end of the inlet portion can be cut to match the size of the pipe, thereby adapting the opening to the size of the pipe. Therefore, the invention can be adapted to pipes of various specifications, improving versatility and reducing costs. A pipe is inserted through the inlet portion, and rainwater flows from the pipe and passes through the water seal portion. Some of the rainwater is retained in the water seal portion, achieving a water seal effect and blocking odors. The remaining rainwater flows out through the outlet portion.

[0008] Furthermore, it also includes a limiting part, which is installed between the inlet part and the water seal part. One end of the limiting part is connected to the inlet part, and the other end is connected to the water seal part, and the lower end of the pipeline abuts against the limiting part.

[0009] Furthermore, the cross-sectional area of ​​the upper end of the limiting portion is larger than that of the lower end.

[0010] Furthermore, the bottom end of the water outlet portion is arranged higher than the top end of the limiting portion.

[0011] Furthermore, it also includes a socket part, which is installed between the inlet part and the limiting part. One end of the socket part is connected to the inlet part, and the other end is connected to the limiting part.

[0012] Furthermore, the outside of the inlet portion is provided with a plurality of grooves in sequence from top to bottom.

[0013] Furthermore, it also includes a connecting part, which is communicated with the water outlet part and the water seal part respectively.

[0014] Furthermore, the socket portion and the limiting portion are both communicated with the connecting portion.

[0015] Furthermore, the cross sections of the inlet portion, the socket portion and the limiting portion are all quadrilateral or circular.

[0016] Furthermore, the inlet portion, the limiting portion, the water sealing portion, the connecting portion, the socket portion and the water outlet portion are all integrally formed by a blow molding process.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The upper end of the inlet of the utility model is provided with an opening, and the cross-sectional area of ​​the lower end is larger than that of the upper end. The size of the opening can be changed by cutting the upper end of the inlet, thereby achieving adaptation to pipes of different specifications;

[0019] 2. The utility model is provided with a limiter with a cross-sectional area at the upper end larger than that at the lower end and a smooth transition, ensuring that it can abut against pipes of different specifications;

[0020] 3. The utility model is provided with a socket part to ensure the socket depth of the pipe and prevent the pipe from shaking due to the socket depth being too shallow. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a water seal pipe according to the utility model from a first perspective;

[0022] Figure 2 This is a schematic structural diagram of a water seal pipe according to the utility model from a second perspective;

[0023] Figure 3 This is an AA sectional view of a water seal pipe fitting of the present invention, in which the arrows indicate the direction of rainwater flow;

[0024] Figure 4 This is a structural schematic diagram of Example 2 of a water seal pipe fitting of the utility model, in which the arrows indicate the direction of rainwater flow.

[0025] The icon markings are explained as follows:

[0026] 1. Inlet part; 11. Groove; 2. Limiting part; 3. Water seal part; 4. Water outlet part; 5. Socket part; 6. Connection part; 7. Pipeline. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and so on indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] Example 1

[0030] like Figures 1 to 3The figure shows a first embodiment of a water seal pipe fitting of the present invention, comprising an inlet portion 1, a water seal portion 3, and a water outlet portion 4, all of which are hollow structures. The upper end of the inlet portion 1 is provided with an opening and the cross-sectional area of ​​the upper end is smaller than the cross-sectional area of ​​the lower end. The lower end of the inlet portion 1 is connected with the water seal portion 3, and the water seal portion 3 is connected with the water outlet portion 4. The bottom end of the water outlet portion 4 is arranged higher than the top end of the water seal portion 3. The pipe 7 is inserted into and passes through the inlet portion 1. Rainwater flows in from the pipe 7, flows through the water seal portion 3, and part of the rainwater remains in the water seal portion 3, and the rest of the rainwater flows out from the water outlet portion 4.

[0031] The cross-sectional area of ​​the lower end of the inlet portion 1 of the present invention is larger than that of the upper end. The upper end of the inlet portion 1 can be cut according to the size of the pipe 7 so that the size of the opening is adapted to the size of the pipe 7. Therefore, it can adapt to pipes of various specifications, improving versatility and reducing costs. The pipe 7 is inserted into and passes through the inlet portion 1. Rainwater flows into the pipe 7 and flows through the water seal portion 3. Some rainwater is retained in the water seal portion 3 to achieve a water seal effect, blocking odors and odors. The remaining rainwater flows out from the outlet portion 4. The water seal of the water seal portion 3 prevents odors from flowing when rainwater is recycled, and also prevents small insects and other organisms from entering the system through the pipe 7, reducing the risk of disease transmission. The utility model can adapt to a variety of pipes 7 of different specifications through the inlet portion 1, which not only reduces the need to purchase different types of pipe fittings and reduces material costs, but also reduces the number of different pipe fittings in inventory and saves storage space. When designing a pipe 7 system, the water seal fitting can be used to adapt and connect a variety of rainwater downpipes 7, increasing design flexibility and allowing maintenance personnel to find the right accessories more quickly during installation or maintenance.

[0032] The present invention also includes a limiting part 2, which is installed between the inlet part 1 and the water seal part 3. One end of the limiting part is connected to the inlet part 1, and the other end is connected to the water seal part 3. The pipe 7 is inserted into and passes through the inlet part 1, and the lower end of the pipe 7 abuts against the limiting part 2. The limiting part 2 ensures the axial positioning of the pipe 7 after insertion, and the pipe 7 and the present invention can be quickly connected and installed. The upper end area of ​​the limiting part 2 is larger than the lower end area and the transition is smooth. This design makes the limiting part 2 universal, and can ensure that the limiting part 2 can abut against pipes 7 of different specifications. Cooperating with the inlet part 1, the present invention can adapt to pipes 7 of various specifications, reducing the inventory demand for pipe fittings of specific specifications, reducing the waste caused by specification mismatch, and bringing many conveniences and advantages to the design, installation, maintenance and use of the pipe 7 system; reducing the need to purchase different types of pipe fittings, reducing material costs, and also reducing the number of different pipe fittings in inventory, saving storage space.

[0033] The bottom end of the water outlet part 4 of the utility model is arranged higher than the top end of the limiting part 2. Rainwater flows in from the pipe 7, flows through the water seal part 3, and part of the rainwater is retained in the water seal part 3, and the rest of the rainwater flows out from the water outlet part 4. The lower end of the pipe 7 abuts against the limiting part 2. In the utility model, the liquid level of rainwater must be greater than the bottom end height of the water outlet part 4 before it can flow out from the water outlet part 4. Rainwater with a liquid level equal to or lower than the bottom end height of the water outlet part 4 is retained in the water seal part 3, achieving a water seal effect, effectively isolating the odor and smell in the pipe 7, solving the problem of odor flow during rainwater recycling, and preventing insects and other organisms from entering the rainwater downpipe; it can prevent rainwater from backflowing, especially in the rainy season. The water seal effect of the water seal pipe can prevent rainwater from flowing back into the room, protecting the building from rainwater erosion.

[0034] The present invention also includes a socket part 5, which is installed between the inlet part 1 and the limit part 2. One end of the socket part 5 is connected to the inlet part 1, and the other end is connected to the limit part 2. The socket part 5 ensures the socket depth of the pipe fitting inserted into the present invention. The correct socket depth can ensure the connection strength between the pipe fitting and the present invention, and prevent leakage and falling off due to poor connection. In this embodiment, the height of the socket part 5 is greater than the width of the pipe 7, so that the socket height ensures the connection strength and prevents the pipe 7 from shaking due to too shallow socket depth, which leads to leakage or falling off. The appropriate socket depth combined with the appropriate sealing material can provide a better sealing effect; and the standardized socket depth helps to improve the consistency and quality of construction and reduce errors in the construction process.

[0035] The cross-sections of the inlet part 1, the socket part 5 and the limit part 2 of the utility model are all quadrilaterals, corresponding to the square pipe 7. The corresponding shapes can ensure the sealing of the connection between the pipe 7 and the utility model to prevent rainwater leakage; the standardized production of water-sealed pipe fittings and pipe fittings can ensure the consistency of shape and size, which is convenient for achieving shape correspondence; strictly follow the installation specifications and standards of the pipe 7 to ensure the correct installation of the pipe 7 and the utility model.

[0036] The outside of the inlet part 1 of the utility model is provided with a plurality of circles of grooves 11 in sequence from top to bottom. After the pipe fitting is inserted into the inlet part 1 and abuts against the limiting part 2, a tightening belt can be installed in the groove 11 at the upper end of the inlet part 1 or a sealant can be applied to provide additional sealing protection to ensure the sealing effect after the pipe groove is inserted and prevent rainwater leakage; and the tightening belt or sealant can adapt to pipe fittings of different specifications and provide a flexible connection solution; no special tools are required, which is convenient for on-site installation and subsequent maintenance; in addition, the sealant can form an elastic buffer layer at the connection of the pipeline 7 to absorb vibration and impact and improve stability and reliability.

[0037] The bottom height of the water outlet portion 4 of the present invention is higher than the bottom height of the socket portion 5, and the height difference between the bottom of the receiving section and the bottom of the water outlet is at least 50 mm. By forming a water column of a certain height to isolate the flow of gas, a good water seal effect is ensured to prevent harmful gases or odors from flowing back into the indoor environment. In addition, the state of the water seal portion 3, such as the water level, can serve as an intuitive indicator of whether the pipeline 7 system is operating normally, facilitating inspection and monitoring. If the water seal height is insufficient, it may not be able to effectively prevent odors and pests; and if the water seal is too high, it may affect the drainage efficiency. At the same time, this height also helps to reduce the risk of water seal failure due to evaporation. The present invention also includes a connecting portion 6, which is respectively connected to the water outlet portion 4 and the water seal portion 3, and the socket portion 5 and the limit portion 2 are both connected to the connecting portion 6.

[0038] The water outlet 4 of the utility model is a standard pipe, which is connected to the pipe 7 for storing rainwater. It can be used to connect standard 90° elbows or straight-through fittings, so that it can be assembled into P-type and S-type water traps according to actual usage needs, reducing the need to purchase different types of pipe fittings, reducing material costs, and also reducing the number of different pipe fittings in inventory, saving storage space; when designing the pipe 7 system, the water seal pipe fitting can be used to connect a variety of pipe fittings, increasing the flexibility of the design, and maintenance personnel can find suitable accessories more quickly during installation or maintenance. Due to its structural characteristics, the P-type trap is usually installed at the horizontal right-angle connection of the drainage horizontal pipe or drainage vertical pipe, that is, in the drainage system where space is limited or a right-angle turn is required, such as the connection of the drainage vertical pipe or horizontal pipe close to the wall; the S-type trap, due to its shape design, can more effectively form a water seal to prevent odor and harmful gases from the sewer from flowing back into the room, and the curved design of the S-type trap can slow down the water flow speed and reduce the noise generated when the water flows through, making the drainage process quieter. In general, the P-type trap and the S-type trap are both effective devices for preventing odor and pollutants in the sewer from entering the room. Which one to choose depends on the specific installation environment and the design requirements of the drainage system.

[0039] The inlet part 1, the limiting part 2, the water seal part 3, the connecting part 6, the socket part 5 and the water outlet part 4 of the utility model are integrally formed by the blow molding process. The traditional water trap requires multiple assemblies to cooperate to realize the function. The utility model has no other assemblies and a simple structure. The blow molding process can quickly produce hollow pipe fittings, which are suitable for large-scale production and improve production efficiency. Moreover, the blow molding process can well control the use of materials, reduce the generation of waste, and improve the utilization rate of materials. Since it is an integral molding, the wall thickness of the utility model is uniform, the product quality is more consistent, and the defect rate of the product is reduced. The blow-molded water seal pipe fittings usually have good mechanical strength and durability, and can withstand greater pressure and impact. In addition, compared with other manufacturing methods, the blow molding process has certain advantages in equipment cost and production cost, especially in large-scale production.

[0040] Example 2

[0041] Figure 4 The second embodiment of a water seal pipe fitting of the present invention is shown. This embodiment is similar to the first embodiment, except that the present invention includes an inlet portion 1, a socket portion 5, a limit portion 2, a water seal portion 3, a connection portion 6, and a water outlet portion 4, all of which are hollow structures. The upper end of the inlet portion 1 is provided with an opening, and the area of ​​the lower end thereof is larger than that of the upper end. The socket portion 5 and the limit portion 2 are both connected to the connection portion 6, that is, the upper end of the socket portion 5 is connected to the inlet portion 1, the side portion is connected to one side of the connection portion 6, and the lower end is connected to the inlet portion 1. The end is communicated with the limiting part 2, the side of the limiting part 2 is communicated with one side of the connecting part 6, the lower end is communicated with the water seal part 3, the side of the water seal part 3 is communicated with one side of the connecting part 6, and the other side of the connecting part 6 is communicated with the water outlet part 4. The height of the bottom end of the water outlet part 4 is greater than or equal to the height of the upper end of the limiting part 2. The pipe 7 is inserted into and passes through the inlet part 1 and abuts against the limiting part 2. Rainwater flows in from the pipe 7, flows through the limiting part 2, the water seal part 3, and the connecting part 6. Part of the water and rainwater remain in the water seal part 3, and the rest of the rainwater flows out from the water outlet part 4. The area of ​​the lower end of the inlet portion 1 of the present invention is larger than that of the upper end. The inlet portion 1 can be cut according to the size of the pipe 7 so that the size of the opening is adapted to the size of the pipe 7. The pipe 7 passes through the inlet portion 1 and its lower end abuts against the limit portion 2. The limit portion 2 realizes the axial positioning of the pipe 7. Rainwater flows from the pipe 7 through the inlet portion 1 and the limit portion 2, and then flows to the water seal portion 3. Part of the rainwater remains in the water seal portion 3 to achieve the effect of water sealing and block odor. The remaining rainwater flows out from the water outlet portion 4. The bottom end of the water outlet portion 4 is higher than the bottom end of the pipe 7 to achieve water sealing. Unlike Example 1, the connecting portion 6 is not only connected to the water outlet portion 4 and the water seal portion 3, but also the socket portion 5 and the limit portion 2 are both connected to the connecting portion 6.

[0042] Example 3

[0043] The following is the third embodiment of a water-sealed pipe fitting of the present invention. This embodiment is similar to embodiment 1, except that the inlet portion 1, the socket portion 5, and the limit portion 2 of the present invention are all circular in cross-section, corresponding to the circular pipe 7. The corresponding shape can ensure the sealing of the connection between the pipe 7 and the present invention to prevent rainwater leakage; the standardized production of the water-sealed pipe fitting and the pipe 7 can ensure the consistency of shape and size, making it easier to achieve shape correspondence; operations are strictly carried out in accordance with the installation specifications and standards of the pipe 7 to ensure the correct installation of the pipe 7 and the present invention.

[0044] In this embodiment, the height of the socket part 5 is greater than the radius of the pipe 7 to ensure the connection strength and prevent the socket depth of the pipe 7 from being too shallow, causing shaking and thus leakage or falling off. The appropriate socket depth combined with appropriate sealing materials can provide a better sealing effect; and the standardized socket depth helps to improve the consistency and quality of construction and reduce errors in the construction process.

[0045] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A water seal pipe, characterized in that: The invention comprises an inlet portion (1), a water seal portion (3), and a water outlet portion (4), all of which are hollow structures. The upper end of the inlet portion (1) is provided with an opening, and the cross-sectional area of ​​the upper end is smaller than the cross-sectional area of ​​the lower end. The lower end of the inlet portion (1) is communicated with the water seal portion (3), and the water seal portion (3) is communicated with the water outlet portion (4). The bottom end of the water outlet portion (4) is arranged higher than the top end of the water seal portion (3). A pipe (7) is inserted into and passes through the inlet portion (1). Rainwater flows in from the pipe (7) and flows through the water seal portion (3). Part of the rainwater is retained in the water seal portion (3), and the rest of the rainwater flows out from the water outlet portion (4).

2. The water seal pipe according to claim 1, characterized in that: It also includes a limiting portion (2), which is installed between the inlet portion (1) and the water seal portion (3), one end of the limiting portion (2) is connected to the inlet portion (1), and the other end is connected to the water seal portion (3), and the lower end of the pipe (7) is in contact with the limiting portion (2).

3. The water seal pipe according to claim 2, characterized in that: The cross-sectional area of ​​the upper end of the limiting portion (2) is larger than the cross-sectional area of ​​the lower end.

4. The water seal pipe according to claim 2, characterized in that: The bottom end of the water outlet portion (4) is arranged higher than the top end of the limiting portion (2).

5. The water seal pipe according to claim 2, characterized in that: It also includes a socket part (5), which is installed between the inlet part (1) and the limiting part (2), and one end of the socket part (5) is connected to the inlet part (1), and the other end is connected to the limiting part (2).

6. The water seal pipe according to claim 1, characterized in that: The exterior of the inlet portion (1) is provided with a plurality of circular grooves (11) in sequence from top to bottom.

7. The water seal pipe according to claim 5, characterized in that: It also includes a connecting portion (6), which is communicated with the water outlet portion (4) and the water seal portion (3) respectively.

8. The water seal pipe according to claim 7, characterized in that: The socket portion (5) and the limiting portion (2) are both in communication with the connecting portion (6).

9. The water seal pipe according to claim 5, 7 or 8, characterized in that: The cross sections of the inlet portion (1), the socket portion (5) and the limiting portion (2) are all quadrilateral or circular.

10. The water seal pipe according to claim 7, characterized in that: The inlet portion (1), the limiting portion (2), the water seal portion (3), the connecting portion (6), the socket portion (5) and the water outlet portion (4) are all integrally formed using a blow molding process.