A water pipeline connection device

Abstract

This utility model relates to a water conservancy pipeline connection device, belonging to the field of pipeline construction technology. It includes multiple sections of concrete drainage pipe, a rainwater well, a connecting boss, a first sealing cone hole, a second sealing cone hole, a sealing cone platform, a sealing mortar layer, and a limiting recess on the concrete drainage pipe outside the sealing cone platform. Both the first and second sealing cone holes have sealing cone surfaces at their outer ends. A sealing ring is fitted onto the limiting recess platform. A sealing mortar layer is provided at the limiting recess platform outside the sealing ring. A pad is provided at the bottom of the concrete drainage pipe. Backfill pads are provided at the bottom of both the pad and the rainwater well. A concrete casting block is provided on the lower outer side of the concrete drainage pipe. This utility model, through the setting of the first sealing mortar layer and the sealing ring, effectively fills gaps compared to traditional single sealing, significantly reducing the risk of leakage. It facilitates the even application of the sealing mortar layer for better sealing. The backfill pad provides a stable and uniform base, better preventing settlement.

Description

Technical Field

[0001] This utility model relates to a water conservancy pipeline connection device, belonging to the field of pipeline construction technology. Background Technology

[0002] In water conservancy and drainage pipeline projects, socket-type precast concrete pipes are widely used. The quality of the connection between concrete drainage pipes or the connection between concrete drainage pipes and rainwater wells directly affects the operational stability of the drainage system. Existing connection devices generally suffer from insufficient sealing performance, which easily leads to leakage during long-term use. At the same time, the connection structure between the pipe and the rainwater well lacks effective limiting and fixing mechanisms, making it prone to displacement under soil settlement or external forces, affecting drainage smoothness. Utility Model Content

[0003] This utility model provides a water conservancy pipeline connection device to solve the problems existing in the background art.

[0004] This utility model relates to a water conservancy pipeline connection device, including multiple sections of concrete drainage pipe and rainwater well. Each section of concrete drainage pipe has an insertion boss at one end, and a sealing cone hole 1 is provided in the inner hole of the insertion boss. A sealing cone hole 2 is provided on the rainwater well. A sealing cone 1 is provided on the outer side of the other end of the concrete drainage pipe. Sealing platforms are provided at both ends of the sealing cone hole 1, sealing cone hole 2 and sealing cone 1. A sealing mortar layer 1 is provided at both the sealing cone 1 and sealing platform. A limiting recess is provided on the concrete drainage pipe outside the sealing cone 1. Sealing cone surfaces are provided at the outer ends of the sealing cone hole 1 and sealing cone hole 2. A sealing ring is fitted on the limiting recess. A sealing mortar layer is provided at the limiting recess outside the sealing ring. A pad is provided at the bottom of the concrete drainage pipe. A backfill pad layer is provided at the bottom of the pad and the rainwater well. A concrete pouring block is provided on the lower outer side of the concrete drainage pipe.

[0005] As a preferred embodiment, a limiting groove is provided on the insertion protrusion on the outer side of the sealing cone surface, into which the sealing mortar layer extends. The platform of the limiting groove limits the sealing mortar layer, and together with the limiting groove, enhances the bonding strength between the sealing mortar layer and the structure, preventing it from falling off.

[0006] As a preferred embodiment, each pad includes separate pads symmetrically arranged on the lower front and rear sides of the concrete drainage pipe, with a support groove at the inner top of each separate pad that mates with the outer wall of the concrete drainage pipe. This allows the pads to be easily inserted into the bottom of the concrete drainage pipe, reducing construction difficulty.

[0007] As a preferred option, the concrete drainage pipes and concrete blocks are surrounded by a layer of backfill soil. This provides a protective enclosure for the pipes, reduces external environmental erosion, and extends the service life of the installation.

[0008] As a preferred embodiment, the top of the rainwater well is provided with a closed groove, the top of the rainwater well is provided with a rainwater well cover, and the bottom of the closed groove is provided with a sealing gasket.

[0009] As a preferred embodiment, the rainwater well comprises an upper well body and a lower well body. The connection end between the upper and lower well bodies is equipped with a connector plate and a connector groove. The sealing cone holes are distributed in two parts on the upper and lower well bodies. The split structure facilitates transportation and on-site assembly, reducing construction difficulty.

[0010] As a preferred embodiment, both the bottom of the outer edge of the upper well body and the top of the outer edge of the lower well body are provided with conical closed cone surfaces. The upper and lower closed cone surfaces form a closed groove, which is filled with a second layer of sealing mortar. The inner end of the closed cone surface is provided with an anti-detachment groove, and the second layer of sealing mortar is filled into the anti-detachment groove. A sealing strip is provided in the insertion groove. The multiple sealing structure improves the sealing performance of the well body connection, and the anti-detachment groove enhances the bonding force between the second layer of sealing mortar and the well body, preventing well body leakage and better preventing the second layer of sealing mortar from falling off.

[0011] This utility model has the following beneficial effects: By using a sealing mortar layer and a sealing ring, compared to traditional single-seal methods, gaps are effectively filled, significantly reducing the risk of leakage and ensuring the stable water supply and drainage functions of the pipeline system. A pad is installed at the bottom of the concrete drainage pipe to support and lift it, facilitating the even application of the sealing mortar layer for better sealing. The backfill pad provides a stable and uniform base, further preventing settlement. The concrete block encases the lower outer part of the concrete drainage pipe, firmly connecting the pipe to the surrounding foundation, reducing the impact of soil settlement on the pipe connection structure, and ensuring the stability of the connection structure during long-term use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a side view of the present invention. Figure 3 for Figure 1 Enlarged structural diagram at point A; Figure 4 for Figure 1 Partial cross-sectional structural schematic diagram; Figure 5 This is a schematic diagram of the split side structure of a rainwater well; Figure 6 This is a schematic diagram of the side structure of the assembled rainwater wells; In the diagram: 1. Concrete drainage pipe; 2. Insertion boss; 3. Concrete casting block; 4. Spacer block; 5. Backfill layer; 6. Sealing mortar layer one; 7. Rainwater well cover; 8. Rainwater well; 9. Sealing cone hole two; 10. Sealing platform; 11. Sealing mortar layer; 12. Backfill layer; 13. Limiting groove; 14. Limiting recess; 15. Sealing ring; 16. Sealing cone hole one; 17. Anti-detachment trench; 18. Sealing mortar layer two; 19. Insertion clamp platform. Detailed Implementation

[0013] The present invention will be further described below with reference to the embodiments.

[0014] Example 1, as Figures 1 to 6 As shown, this utility model is a water pipe connection device, including multiple sections of concrete drainage pipe 1 and rainwater well 8. Each section of concrete drainage pipe 1 has a plug-in boss 2 at one end, and a sealing cone hole 16 is provided in the inner hole of the plug-in boss 2. A sealing cone hole 29 is provided on the rainwater well 8. A sealing cone is provided on the outer side of the other end of the concrete drainage pipe 1. A sealing platform 10 is provided at both ends of the sealing cone hole 16, the sealing cone hole 29 and the sealing cone. A sealing mortar layer 6 is provided at both the sealing cone and the sealing platform 10. A limiting recess 14 is provided on the concrete drainage pipe 1 outside the sealing cone. A sealing cone surface is provided at the outer end of the sealing cone hole 16 and the sealing cone hole 29. A sealing ring 15 is fitted on the limiting recess 14. A sealing mortar layer 11 is provided at the limiting recess 14 outside the sealing ring 15. A pad block 4 is provided at the bottom of the concrete drainage pipe 1. A backfill pad layer 5 is provided at the bottom of the pad block 4 and the rainwater well 8. A concrete pouring block 3 is provided on the lower outer side of the concrete drainage pipe 1.

[0015] During construction, to facilitate segmented construction, the foundation trench is excavated first, and the installation groove for the rainwater well 8 is also excavated. After leveling and compacting the foundation trench and the installation groove base, a backfill layer 5 is backfilled at the bottom of the foundation trench and the installation groove, and then compacted. The backfill layer 5 is typically a sand and gravel layer. The rainwater well 8 is then hoisted onto the backfill layer 5 of the installation groove. Next, the concrete drainage pipe 1 is hoisted, and a sealing ring 15 is fitted onto the outer wall of the limiting recess 14 of the concrete drainage pipe 1. Then, the sealing mortar layer 1 6 is applied to the sealing cone hole 2 9 and the sealing platform 10. Finally, the concrete drainage pipe 1 is sealed tightly. The sealing cone is inserted into the sealing cone hole 9, and then the sealing ring 15 is moved so that the sealing ring 15 is attached to the sealing cone surface. Then, the pad block 4 is inserted into the bottom of the concrete drainage pipe 1. Then, the sealing mortar layer 11 is applied to the limiting recess 14 on the outside of the connection between the concrete drainage pipe 1 and the rainwater well 8. Then, the next concrete drainage pipe 1 is hoisted and the installation of the adjacent hoisted concrete drainage pipe 1 is carried out. After the multiple sections of concrete drainage pipe 1 are connected, concrete pouring blocks 3 can be poured on both sides of the lower part of the multiple concrete drainage pipe 1 for stable support and protection. Then, the construction of the next section of the pipeline can continue.

[0016] In Example 2, based on Example 1, a limiting groove 13 is provided on the insertion boss 2 on the outer side of the sealing cone surface, and the sealing mortar layer 11 extends into the limiting groove 14. The sealing ring 15 is made of oil-resistant and acid- and alkali-resistant EPDM rubber. Before the sealing ring 15 is fitted, lubricating oil needs to be applied to the outer wall of the limiting groove 14.

[0017] The backfill layer 5 has a thickness of 300-500mm, and is compacted in layers using graded sand and gravel, with a compaction coefficient of not less than 0.93. The concrete block 3 has a strength grade of C25-C30.

[0018] Each pad 4 includes a split pad symmetrically arranged on the lower front and rear sides of the concrete drainage pipe 1. The top inner end of the split pad is provided with a support groove that matches the outer wall of the concrete drainage pipe 1. After the concrete drainage pipe 1 is inserted, the split pads can be inserted from both sides of the bottom of the concrete drainage pipe 1 to support the bottom of the concrete drainage pipe 1 using the support groove.

[0019] A backfill layer 12 is provided on the outside of the concrete drainage pipe 1 and the concrete pouring block 3. After the concrete pouring block 3 dries, soil can be backfilled on the outside to form the backfill layer 12.

[0020] The top of the rainwater well 8 is provided with a closed groove, and the top of the rainwater well 8 is provided with a rainwater well cover 7. The bottom of the closed groove is provided with a sealing gasket.

[0021] The rainwater well 8 includes an upper well body and a lower well body. The connecting ends of the upper and lower well bodies are equipped with a plug-in clamping platform 19 and a plug-in groove. The sealing cone hole 2 9 is divided into two parts and distributed on the upper and lower well bodies. When installing the rainwater well 8, the lower well body is first placed into the installation groove, then the concrete drainage pipe 1 is inserted into the sealing cone hole 2 9 of the lower well body, and then the upper well body is placed on top to complete the splicing.

[0022] Both the bottom of the outer edge of the upper well body and the top of the outer edge of the lower well body are provided with conical closed cone surfaces. The upper and lower closed cone surfaces form a closed groove, which is filled with a second layer of sealing mortar 18. The inner end of the closed cone surface is provided with an anti-detachment groove 17, and the second layer of sealing mortar 18 is filled into the anti-detachment groove 17. A sealing strip is provided in the insertion groove. Before placing the upper well body, a sealing strip can be placed in the insertion groove. After the upper and lower well bodies are inserted, the second layer of sealing mortar 18 is applied to the closed groove. The second layer of sealing mortar 18 enters the anti-detachment groove 17 to form an anti-detachment structure.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0024] In the description of this utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A water pipe connection device, comprising multiple sections of concrete drainage pipe (1) and rainwater well (8), wherein one end of each section of concrete drainage pipe (1) is provided with a plug-in boss (2), characterized in that: The inner hole of the plug-in boss (2) is provided with a sealing cone hole 1 (16), the rainwater well (8) is provided with a sealing cone hole 2 (9), the other end of the concrete drainage pipe (1) is provided with a sealing cone, the sealing cone hole 1 (16), the sealing cone hole 2 (9) and the sealing cone are provided with sealing platforms (10) at both ends, the sealing cone and the sealing platform (10) are provided with a sealing mortar layer 1 (6), the concrete drainage pipe (1) outside the sealing cone is provided with a limiting recess (14), the outer ends of the sealing cone hole 1 (16) and the sealing cone hole 2 (9) are provided with sealing cone surfaces, the limiting recess (14) is fitted with a sealing ring (15), the limiting recess (14) outside the sealing ring (15) is provided with a sealing mortar layer (11), the bottom of the concrete drainage pipe (1) is provided with a pad block (4), the bottom of the pad block (4) and the rainwater well (8) are provided with a backfill pad layer (5), the lower outer side of the concrete drainage pipe (1) is provided with a concrete pouring block (3).

2. The water conservancy pipeline connection device according to claim 1, characterized in that: A limiting groove (13) is provided on the insertion boss (2) on the outer side of the sealing cone surface, and the sealing mortar layer (11) extends into the limiting groove (14).

3. A water pipeline connection device according to claim 2, characterized in that: Each pad (4) includes a split pad symmetrically arranged on the lower part of the front and rear sides of the concrete drainage pipe (1), and the top inner end of the split pad is provided with a support pad groove that cooperates with the outer wall of the concrete drainage pipe (1).

4. A water conservancy pipeline connection device according to claim 1, characterized in that: A backfill layer (12) is provided on the outside of the concrete drainage pipe (1) and the concrete pouring block (3).

5. A water conservancy pipeline connection device according to claim 1, characterized in that: The top of the rainwater well (8) is provided with a closed groove, and the top of the rainwater well (8) is provided with a rainwater well cover (7). The bottom of the closed groove is provided with a sealing gasket.

6. A water conservancy pipeline connection device according to claim 1, characterized in that: The rainwater well (8) includes an upper well body and a lower well body. The connection end of the upper well body and the lower well body is provided with a plug-in card platform (19) and a plug-in groove. The sealing cone hole (9) is divided into two parts and distributed on the upper well body and the lower well body.

7. A water pipeline connection device according to claim 6, characterized in that: The bottom of the outer edge of the upper well body and the top of the outer edge of the lower well body are provided with conical closed cone surfaces. The upper and lower closed cone surfaces form a closed groove. The closed groove is filled with a second layer of sealing mortar (18). The inner end of the closed cone surface is provided with an anti-detachment groove (17). The second layer of sealing mortar (18) is filled into the anti-detachment groove (17). A sealing strip is provided in the insertion groove.

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