Nodular cast iron sewage pipeline anti-seepage structure for high-water-level area

Abstract

The utility model relates to the field of drainage engineering, and discloses a nodular cast iron sewage pipeline anti-seepage structure for a high water level area, which comprises a nodular cast iron pipeline body, a socket pipe is fixedly mounted at the right end of the nodular cast iron pipeline body, and a circular reinforcing ring is fixedly mounted on the inner wall surface of the socket pipe. A round reinforcing ring is fixedly mounted at the left end of the nodular cast iron pipeline body, a round groove is formed in one side of the round reinforcing ring, a rubber sealing ring is fixedly mounted in the round groove, and a round connecting convex ring corresponding to the round groove is fixedly mounted at the left end of the nodular cast iron pipeline body. The round connecting convex ring is matched with the rubber sealing ring, so that the water pressure resistance of the connecting position of the nodular cast iron pipeline body is enhanced, and the problems of sewage leakage and underground water backflow caused by the fact that a sealing ring is prone to fatigue damage and difficult to adapt to pipeline displacement in a high-water-level area of a traditional nodular cast iron sewage pipeline are effectively solved.

Description

Technical Field

[0001] This application belongs to the field of drainage engineering technology, specifically a seepage prevention structure for ductile iron sewage pipelines in high water level areas. Background Technology

[0002] Ductile iron sewage pipes are sewage transport facilities made of ductile iron. Due to their high strength, good toughness, and excellent corrosion resistance, they are widely used in drainage projects. High water level areas refer to areas where the groundwater level is close to or even higher than the ground surface. The soil in these areas is saturated with water for a long time, and there is a large water pressure, which places extremely high demands on the seepage prevention of the pipes. For the special environment of high water level areas, common seepage prevention treatments for ductile iron sewage pipes are as follows: At the joints, the rubber ring is squeezed to achieve a seal when using a socket connection; the flange connection is filled by using a flange gasket and tightening the bolts; and the clamp connection relies on tightening the clamp to compress the rubber sealing ring. At the same time, sealant is applied to the joints to fill tiny gaps, and an anti-corrosion coating is applied to the surface of the pipe body to further enhance the overall seepage prevention capability, ensure safe and reliable sewage transport, and prevent leakage.

[0003] Ductile iron sewage pipes typically use socket connections and rely on sealing rings for sealing and seepage prevention. However, in high-water-level areas, with increasing usage time, repeated compression by high water pressure accelerates the fatigue of the sealing ring material, causing cracks or even damage, significantly shortening its service life. In addition, uneven displacement of the pipe caused by factors such as soil settlement in high-water-level areas far exceeds the deformation adaptability of traditional sealing rings, leading to a decline in their sealing performance and making it difficult to effectively prevent sewage leakage and groundwater backflow. Therefore, a seepage prevention structure for ductile iron sewage pipes in high-water-level areas is provided. Utility Model Content

[0004] The purpose of this application is to provide a seepage-proof structure for ductile iron sewage pipelines in high water level areas in order to solve the problems mentioned above.

[0005] The technical solution adopted in this application is as follows: A seepage prevention structure for ductile iron sewage pipelines in high water level areas includes a ductile iron pipeline body. A socket pipe is fixedly installed at the right end of the ductile iron pipeline body. A circular reinforcing ring is fixedly installed on the inner wall of the socket pipe. A circular groove is opened on one side of the circular reinforcing ring. A rubber sealing ring is fixedly installed inside the circular groove. A circular connecting protrusion corresponding to the circular groove is fixedly installed at the left end of the ductile iron pipeline body. The circular connecting protrusion is inserted into the inside of the circular groove. A socket sealing mechanism connected to the circular reinforcing ring is provided at the left end of the ductile iron pipeline body.

[0006] In a preferred embodiment, the socket sealing mechanism includes a circular groove and a sealing rubber ring. The inner wall of the circular reinforcing ring has two circular grooves. Two sealing rubber rings that are adapted to the circular grooves are fixedly installed at the left end of the ductile iron pipe body. The sealing rubber rings are snapped into the inside of the circular grooves.

[0007] In a preferred embodiment, a flange connection plate one is fixedly installed on the outer surface of the end of the socket pipe away from the ductile iron pipe body, and a flange connection plate two corresponding to the flange connection plate one is fixedly installed on the outer surface of the ductile iron pipe body near the left end. The flange connection plate one and the flange connection plate two are fixed together by bolts.

[0008] In a preferred embodiment, a sealing gasket is fixedly installed on one side of the flange connecting plate two, and the sealing gasket is located between the flange connecting plate two and the circular connecting convex ring.

[0009] In a preferred embodiment, a support ring is fixedly installed on the outer surface of the ductile iron pipe body, a support plate is fixedly installed on the outer surface of the support ring, and a U-shaped support is fixedly installed on the bottom surface of the support plate by bolts.

[0010] In a preferred embodiment, the end of the circular connecting protrusion near the circular reinforcing ring is rounded.

[0011] In a preferred embodiment, the outer diameter of the ductile iron pipe body is smaller than the inner diameter of the circular reinforcing ring.

[0012] In a preferred embodiment, the circular connecting protrusion can be integrally formed with the ductile iron pipe body.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0014] 1. In this application, due to the adoption of the above-mentioned scheme, the circular connecting protrusion at the left end of the ductile iron pipe body penetrates deep into the socket pipe and is inserted into the circular groove of the circular reinforcing ring, thus compressing the rubber sealing ring. This ensures that the circular connecting protrusion and the rubber sealing ring fit tightly together, enhancing the resistance to repeated compression by high water pressure and effectively delaying the fatigue of the sealing ring material. At the same time, the stable support structure composed of the support ring, support plate, and U-shaped support plays a role in effectively dispersing the uneven displacement of the pipe caused by soil settlement, reducing the risk of seal failure due to displacement. Through the combined operation of multiple sealing structures and stable support structures, this device enhances the water pressure resistance of the connection between the circular connecting protrusion and the rubber sealing ring, effectively solving the problems of sewage leakage and groundwater backflow caused by the easy fatigue and damage of the sealing ring and the inability to adapt to pipe displacement in traditional ductile iron sewage pipes in high water level areas. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this application;

[0016] Figure 2 This is a schematic diagram of the side section structure of this application;

[0017] Figure 3 For the purposes of this application Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a partial exploded view of the structure of this application.

[0019] The markings in the diagram are: 1. Ductile iron pipe body; 2. Socket pipe; 3. Circular reinforcing ring; 4. Circular groove; 5. Rubber sealing ring; 6. Circular connecting convex ring; 7. Socket sealing mechanism; 701. Circular groove; 702. Sealing rubber ring; 8. Flange connecting plate one; 9. Flange connecting plate two; 10. Sealing gasket; 11. Support ring; 12. Support plate; 13. U-shaped support. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] refer to Figures 1-4 As shown, a seepage-proof structure for ductile iron sewage pipelines in high-water-level areas includes a ductile iron pipeline body 1. A support ring 11 is fixedly installed on the outer surface of the ductile iron pipeline body 1, and a support plate 12 is fixedly installed on the outer surface of the support ring 11. A U-shaped support 13 is fixedly installed on the bottom surface of the support plate 12 by bolts. The ductile iron pipeline body 1 is made of high-strength ductile iron material, which has excellent toughness and strength and can effectively resist the pressure of the complex environment in high-water-level areas. During the manufacturing process, the outer surface of the pipeline body is treated with a special process, and a support structure consisting of U-shaped support 13, support plate 12 and support ring 11 is fixedly installed. This structure can effectively disperse the pressure on the pipeline, reduce uneven displacement caused by factors such as soil settlement in high-water-level areas, and enhance overall stability. At the same time, when not installed, it can help support the pipeline body, keeping it away from the ground and avoiding corrosion caused by long-term contact with damp ground.

[0022] refer to Figures 1-4As shown, a socket pipe 2 is fixedly installed at the right end of the ductile iron pipe body 1, and a circular reinforcing ring 3 is fixedly installed on the inner wall of the socket pipe 2. The outer diameter of the ductile iron pipe body 1 is smaller than the inner diameter of the circular reinforcing ring 3. A socket sealing mechanism 7 connected to the circular reinforcing ring 3 is provided at the left end of the ductile iron pipe body 1. By setting the outer diameter of the ductile iron pipe body 1 to be smaller than the inner diameter of the circular reinforcing ring 3, one end of the ductile iron pipe body 1 can be inserted into the circular reinforcing ring 3. The circular reinforcing ring 3 enhances the strength of the connection part of the socket pipe 2. Combined with the socket sealing mechanism 7, it can effectively resist the water pressure in high water level areas, avoid leakage at the connection due to excessive pressure, and improve the anti-seepage capability of the pipeline.

[0023] refer to Figures 1-4 As shown, the socket sealing mechanism 7 includes a circular groove 701 and a sealing rubber ring 702. The inner wall of the circular reinforcing ring 3 has two circular grooves 701. Two sealing rubber rings 702 that are compatible with the circular grooves 701 are fixedly installed at the left end of the ductile iron pipe body 1. The sealing rubber rings 702 are snapped into the inside of the circular grooves 701. The double sealing rubber rings 702 and the circular grooves 701 cooperate to form a double sealing structure. Compared with the traditional single sealing ring, it can better withstand the repeated squeezing of high water pressure in high water level areas, delay the fatigue of sealing ring materials, and extend the service life of sealing components. In addition, the end of the ductile iron pipe body 1 is designed with a structure that cooperates with the socket pipe 2, the circular reinforcing ring 3, the socket sealing mechanism 7 and other components. Through close cooperation with the rubber sealing ring 5, the sealing rubber ring 702 and other sealing components, multiple waterproof and seepage prevention lines are formed to comprehensively protect the seepage prevention performance of the pipeline.

[0024] refer to Figures 1-4 As shown, a circular groove 4 is provided on one side of the circular reinforcing ring 3. A rubber sealing ring 5 is fixedly installed inside the circular groove 4. A circular connecting protrusion 6 corresponding to the circular groove 4 is fixedly installed on the left end of the ductile iron pipe body 1. The circular connecting protrusion 6 can be integrally formed with the ductile iron pipe body 1. The circular connecting protrusion 6 is inserted into the circular groove 4. The end of the circular connecting protrusion 6 near the circular reinforcing ring 3 is rounded. Through the cooperation of the rubber sealing ring 5 and the circular connecting protrusion 6, a tight sealing surface is formed when the pipe is connected, which effectively prevents sewage leakage and groundwater backflow. At the same time, the rounded corner design of the circular connecting protrusion 6 allows the circular connecting protrusion 6 to squeeze the rubber sealing ring 5 to make it fit more tightly when it is inserted into the circular groove 4, reducing damage to the rubber sealing ring 5 during the connection process and further ensuring the sealing effect. By integrally forming the circular connecting protrusion 6 with the ductile iron pipe body 1, the sealing performance and strength of the circular connecting protrusion 6 can be improved.

[0025] refer to Figures 1-4As shown, a flange connection plate 8 is fixedly installed on the outer surface of the end of the socket pipe 2 away from the ductile iron pipe body 1, and a flange connection plate 9 corresponding to flange connection plate 8 is fixedly installed on the outer surface of the ductile iron pipe body 1 near the left end. Flange connection plate 8 and flange connection plate 9 are fixed together by bolts. By fixing flange connection plate 8 and flange connection plate 9 together by bolts, the firmness of the pipe connection is not only enhanced, but also the gap caused by pipe displacement can be compensated to a certain extent.

[0026] refer to Figures 1-4 As shown, a sealing gasket 10 is fixedly installed on one side of the flange connection plate 2 9. The sealing gasket 10 is located between the flange connection plate 2 9 and the circular connecting convex ring 6. The sealing gasket 10 can further fill the gaps in the flange connection, enhance the sealing of the flange connection, prevent groundwater from seeping into the pipeline through the flange gaps, and ensure the seepage prevention effect of the entire pipeline system.

[0027] The implementation principle of this application for an anti-seepage structure for ductile iron sewage pipelines in high water level areas is as follows: When connecting pipelines, the left end of one ductile iron pipe body 1 is precisely inserted into the socket pipe 2 at the right end of another ductile iron pipe body 1. During this process, the sealing rubber ring 702 at the left end of the ductile iron pipe body 1 can be inserted into the circular groove 701 on the inner wall of the circular reinforcing ring 3, quickly forming a preliminary sealing structure and laying the foundation for anti-seepage. As the insertion continues, the circular connecting protrusion 6 at the left end of the ductile iron pipe body 1 penetrates into the socket pipe 2, inserts into the circular groove 4 of the circular reinforcing ring 3, and compresses the rubber sealing ring 5, making the circular connecting protrusion 6 and the rubber sealing ring 5 fit tightly together, constructing a double sealing system, improving the resistance to repeated compression by high water pressure, and effectively delaying the deterioration of the sealing ring material. While preventing material fatigue, the stable support structure formed by the support ring 11, support plate 12 and U-shaped support 13 plays a role in effectively dispersing the uneven displacement of the pipeline caused by soil settlement, reducing the risk of seal failure due to displacement. After insertion, flange connecting plate 1 8 and flange connecting plate 2 9 are fastened together with bolts, and the sealing gasket 10 between them fully fills the gap, further strengthening the sealing of the connection. Through the combined operation of multiple sealing structures and stable support structures, the circular connecting convex ring 6 and rubber sealing ring 5 enhance the water pressure resistance of the connection of the ductile iron pipeline body 1, effectively solving the problem of sewage leakage and groundwater backflow caused by the easy fatigue and damage of the sealing ring and the inability to adapt to pipeline displacement in traditional ductile iron sewage pipelines in high water level areas, significantly improving the overall anti-seepage effect and service life of the pipeline.

[0028] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A seepage-proof structure for ductile iron sewage pipelines in high-water-level areas, comprising a ductile iron pipeline body (1), characterized in that: A socket pipe (2) is fixedly installed at the right end of the ductile iron pipe body (1). A circular reinforcing ring (3) is fixedly installed on the inner wall of the socket pipe (2). A circular groove (4) is opened on one side of the circular reinforcing ring (3). A rubber sealing ring (5) is fixedly installed inside the circular groove (4). A circular connecting protrusion (6) corresponding to the circular groove (4) is fixedly installed at the left end of the ductile iron pipe body (1). The circular connecting protrusion (6) is inserted into the circular groove (4). A socket sealing mechanism (7) connected to the circular reinforcing ring (3) is provided at the left end of the ductile iron pipe body (1).

2. The anti-seepage structure for ductile iron sewage pipelines in high water level areas as described in claim 1, characterized in that: The socket sealing mechanism (7) includes a circular groove (701) and a sealing rubber ring (702). The inner wall of the circular reinforcing ring (3) has two circular grooves (701). The left end of the ductile iron pipe body (1) is fixedly installed with two sealing rubber rings (702) that are compatible with the circular grooves (701). The sealing rubber rings (702) are snapped into the inside of the circular grooves (701).

3. The anti-seepage structure for ductile iron sewage pipelines in high water level areas as described in claim 1, characterized in that: A flange connection plate one (8) is fixedly installed on the outer surface of the end of the socket pipe (2) away from the ductile iron pipe body (1). A flange connection plate two (9) corresponding to the flange connection plate one (8) is fixedly installed on the outer surface of the ductile iron pipe body (1) near the left end. The flange connection plate one (8) and the flange connection plate two (9) are fixed by bolts.

4. The anti-seepage structure for ductile iron sewage pipelines in high water level areas as described in claim 1, characterized in that: A sealing gasket (10) is fixedly installed on one side of the flange connecting plate two (9), and the sealing gasket (10) is located between the flange connecting plate two (9) and the circular connecting protrusion ring (6).

5. The anti-seepage structure for ductile iron sewage pipelines in high water level areas as described in claim 1, characterized in that: A support ring (11) is fixedly installed on the outer surface of the ductile iron pipe body (1), and a support plate (12) is fixedly installed on the outer surface of the support ring (11). A U-shaped support (13) is fixedly installed on the bottom surface of the support plate (12) by bolts.

6. The anti-seepage structure for ductile iron sewage pipelines in high water level areas as described in claim 1, characterized in that: The end of the circular connecting protrusion (6) near the circular reinforcing ring (3) is rounded.

7. The anti-seepage structure for ductile iron sewage pipelines in high water level areas as described in claim 1, characterized in that: The outer diameter of the ductile iron pipe body (1) is smaller than the inner diameter of the circular reinforcing ring (3).

8. The anti-seepage structure for ductile iron sewage pipelines in high water level areas as described in claim 1, characterized in that: The circular connecting protrusion (6) can be integrally formed with the ductile iron pipe body (1).

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