D-shaped drain pipe

Abstract

The utility model relates to drainage pipeline technical field, concretely discloses a D-shaped drainage pipeline, including the pipe body, the outside fixed connection of pipe body has many groups of reinforcing ring, the clearance is left between reinforcing ring, the bottom fixed connection of pipe body has many groups of fixed plate, the arch crown structure is formed between reinforcing plate and pipe body, one end fixed connection of pipe body has the arc convex ring, the inner diameter of arc convex ring is greater than the outer diameter of pipe body, in the utility model, the problem that traditional circular bellows pressure capacity is insufficient is solved, has the remarkable advantage. The pipe body bottom forms the stable support structure through the fixed plate, the flat bottom design of bottom increases the contact area with the soil, disperses the underground pressure, and the arch crown structure that cooperation reinforcing plate and pipe body constitute, utilize the arch mechanical principle to improve the overall compression resistance performance greatly, can bear the backfill soil, ground load and soil lateral pressure for a long time, avoid the pipe wall and deform damage because of uneven stress.

Description

Technical Field

[0001] This utility model relates to the field of drainage pipe technology, and in particular to a D-shaped drainage pipe. Background Technology

[0002] In urban infrastructure construction, industrial park sewage discharge, and residential wastewater discharge, drainage pipelines are the core facilities for sewage collection, transportation, and treatment, playing a vital role in maintaining water cycle balance and preventing sewage accumulation and environmental pollution. Whether it's the underground pipe network of main urban roads or the sewage discharge systems of residential areas and factories, drainage pipelines are essential for the safe and efficient transport of sewage to wastewater treatment plants, ensuring a clean urban environment and the quality of life for residents. Therefore, drainage pipelines are indispensable for the normal operation of modern society.

[0003] However, existing drainage pipes mostly use circular corrugated pipe structures, which face the prominent problem of insufficient pressure-bearing capacity in practical applications. Since sewage transport pipes are usually buried deep underground, they must withstand the pressure of the backfill soil above, the load of vehicles on the ground, and the lateral pressure of the soil itself for extended periods. The wall structure of ordinary circular pipes has limited supporting capacity. Under long-term pressure, the pipe wall is prone to localized deformation due to uneven stress. Over time, this deformation gradually intensifies, eventually leading to pipe rupture and damage. Utility Model Content

[0004] In view of the fact that most existing drainage pipes adopt a circular corrugated pipe structure, which faces the prominent problem of insufficient pressure bearing capacity in practical applications, this utility model provides a D-shaped drainage pipe.

[0005] The technical solution adopted by this utility model is: a D-shaped drainage pipe, including a pipe body, with multiple sets of reinforcing rings fixedly connected to the outside of the pipe body, and gaps left between the reinforcing rings; multiple sets of fixing plates fixedly connected to the bottom of the pipe body, with an arch structure formed between the reinforcing plates and the pipe body; and an arc-shaped convex ring fixedly connected to one end of the pipe body, with the inner diameter of the arc-shaped convex ring being larger than the outer diameter of the pipe body.

[0006] The present invention is further configured such that multiple sets of reinforcing ribs are fixedly connected between the reinforcing rings, the reinforcing rings are rectangular, arched or polygonal structures, and the inner cavity of the tube is circular, elliptical or polygonal.

[0007] A further feature of this invention is that the reinforcing rib has a through hole.

[0008] A further feature of this invention is that the top of the reinforcing plate is fixedly connected to the reinforcing ring.

[0009] A further feature of this invention is that the bottom of the reinforcing plate has a flat bottom structure.

[0010] A further feature of this invention is that multiple sets of reinforcing strips are fixedly connected to the fixing plate, and the top of the reinforcing strips is fixedly connected to the tube body.

[0011] A further feature of this invention is that the reinforcing ribs are distributed on the top, bottom, and both sides of the pipe body, thereby surrounding the pipe body.

[0012] A further feature of this invention is that the inner cavity of the tube is a circular, elliptical, or polygonal structure.

[0013] The beneficial effects of this utility model are as follows: This utility model solves the problem of insufficient pressure-bearing capacity of traditional circular corrugated pipes, and has significant advantages. The bottom of the pipe body forms a stable support structure through a fixing plate. The flat bottom design increases the contact area with the soil, dispersing underground pressure. Combined with the arch structure formed by the reinforcing plate and the pipe body, the overall compressive strength is greatly improved by utilizing the principle of arch mechanics. It can withstand backfill soil, ground loads and soil lateral pressure for a long time, avoiding deformation and damage to the pipe wall due to uneven stress. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the arc-shaped convex ring in this utility model;

[0017] Figure 4 This is a side view of the structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the tube structure of this utility model. Figure 1 ;

[0019] Figure 6 This is a schematic diagram of the tube structure of this utility model. Figure 2 ;

[0020] Figure 7 This is a schematic diagram of the tube structure of this utility model. Figure 3 .

[0021] The diagram is marked as follows:

[0022] 1. Pipe body; 2. Reinforcing plate; 3. Reinforcing ring; 4. Reinforcing rib; 5. Through hole; 6. Arc-shaped convex ring; 7. Reinforcing strip. Detailed Implementation

[0023] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", 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 simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] The following is in conjunction with the appendix Figure 1-7 The present invention will be further described below.

[0025] To address the problems existing in the background art, this application proposes the following technical solution: A D-shaped drainage pipe, comprising a pipe body 1, the inner cavity of the pipe body 1 being circular, elliptical, or polygonal, and in this embodiment being circular; multiple sets of reinforcing rings 3 are fixedly connected to the outside of the pipe body 1, and multiple sets of reinforcing ribs 4 are fixedly connected between the reinforcing rings 3; the reinforcing rings 3 are rectangular, arched, or polygonal; the inner cavity of the pipe body 1 is circular, elliptical, or polygonal; gaps are left between the reinforcing rings 3; multiple sets of fixing plates are fixedly connected to the bottom of the pipe body 1; an arched structure is formed between the reinforcing plate 2 and the pipe body 1; and an arc-shaped convex ring 6 is fixedly connected to one end of the pipe body 1, the inner diameter of the arc-shaped convex ring 6 being larger than the outer diameter of the pipe body 1. Multiple sets of reinforcing ribs 4 are fixedly connected between the reinforcing rings 3. Each reinforcing rib 4 has through holes 5 through which cables pass, facilitating subsequent intelligent pipeline construction. The top of the reinforcing plate 2 is fixedly connected to the reinforcing rings 3, and the bottom of the reinforcing plate 2 has a flat bottom structure. Multiple sets of reinforcing strips 7 are fixedly connected to the fixed plate, and the tops of the reinforcing strips 7 are fixedly connected to the pipe body 1. The reinforcing ribs 4 are distributed on the top, bottom, and both sides of the pipe body 1, enclosing it. In this embodiment, the arched structure allows the pipe body 1 to withstand greater pressure after being buried underground, and also increases the compaction of the soil on both sides of the pipe body 1. As the core carrier of the drainage pipeline, the design of the inner cavity shape of the pipe body 1 directly affects drainage efficiency and applicability. A circular inner cavity has significant advantages in fluid mechanics, reducing resistance when water flows through, minimizing eddies and siltation, ensuring smooth drainage, and is especially suitable for long-term transportation of sewage or rainwater containing impurities, reducing the risk of pipe blockage. The elliptical or polygonal inner cavity can be adjusted according to the specific installation space. For example, in areas with limited underground space, the elliptical structure can better adapt to narrow environments. However, this embodiment chooses a circular shape because it is versatile, easy to process, and has stable drainage efficiency.

[0026] In this embodiment, the multiple sets of reinforcing rings 3 on the outside of the pipe body 1 are a key design feature for enhancing structural strength. In underground environments, pipelines must withstand soil pressure from above, vehicle loads on the ground, and lateral soil compression. The reinforcing rings 3, through their ring structure, concentrate and evenly distribute the dispersed external forces across the entire pipe body 1, preventing excessive local stress that could lead to deformation or breakage. The reinforcing rings 3 are spaced apart rather than tightly connected. This design effectively alleviates stress concentration. When slight soil settlement occurs or temperature changes cause thermal expansion and contraction of the pipe body 1, the gaps provide a buffer space for expansion and contraction, reducing the risk of cracking caused by rigid connections and extending the pipeline's service life.

[0027] In this embodiment, the multiple sets of fixing plates at the bottom of the pipe body 1 significantly improve the stability of the pipe after installation. The fixing plates increase the contact area between the pipe and the foundation soil, dispersing the pipe's own weight and internal water flow load, preventing the pipe from settling or shifting in soft soil. The arch structure formed by the reinforcing plate 2 and the pipe body 1 draws on the mechanical principles of arch bridges, using triangular stability to disperse the pressure from above to both sides, making the pipe body 1 less prone to collapse when subjected to heavy loads (such as being run over by large vehicles). At the same time, it enhances the deformation resistance of the bottom of the pipe body 1, preventing the pipe body 1 from sinking due to excessive force at the bottom.

[0028] In this embodiment, the arc-shaped protruding ring 6 at one end of the pipe body 1 is an important design feature for optimizing connection performance. The inner diameter of the arc-shaped protruding ring 6 is larger than the outer diameter of the pipe body 1. When multiple pipe sections are spliced, the end of the previous pipe section can naturally insert into the arc-shaped protruding ring 6 of the next section, forming a tight fitting structure. This connection method eliminates the need for complex connectors, simplifying the construction process. At the same time, the arc-shaped structure can accommodate minor angular deviations during pipe installation, ensuring connection sealing, effectively preventing sewage leakage and soil pollution, and improving the environmental friendliness and reliability of the pipeline network operation. Multiple sets of reinforcing ribs 4 are fixedly connected between the reinforcing rings 3. The reinforcing ribs 4 are provided with through holes 5, through holes 5 and through which cables pass, which facilitates the subsequent construction of intelligent pipeline network. The top of the reinforcing plate 2 is fixedly connected to the reinforcing rings 3. The bottom of the reinforcing plate 2 is a flat bottom structure. Multiple sets of reinforcing strips 7 are fixedly connected in the fixed plate. The top of the reinforcing strips 7 is fixedly connected to the pipe body 1. The reinforcing ribs 4 are distributed on the top, bottom and sides of the pipe body 1, which surrounds the pipe body 1. In this embodiment, by setting the arch structure, when the pipe body 1 is buried underground, it can withstand greater pressure and can improve the compaction of the soil added on both sides of the pipe body 1.

[0029] In this embodiment, multiple sets of reinforcing ribs 4 between the reinforcing rings 3 further enhance the overall rigidity of the pipeline. The reinforcing ribs 4 connect the dispersed reinforcing rings 3 into a complete force-bearing system, forming a support structure similar to a "skeleton," preventing tilting or deformation of a single set of reinforcing rings 3 under stress, and making the stress on the pipe body 1 more balanced in all directions. The through holes 5 reserved in the reinforcing ribs 4 reflect the adaptability to the intelligent construction of modern pipe networks. As urban drainage systems develop towards intelligence, it is necessary to lay flow monitoring sensors, leak detection cables, and other equipment in the pipeline. The through holes 5 provide dedicated channels for these cables, eliminating the need for later excavation of pipelines or damage to the structure, reducing the cost and difficulty of intelligent transformation, and facilitating real-time monitoring of the pipeline network's operating status.

[0030] In this embodiment, the fixed connection between the top of the reinforcing plate 2 and the reinforcing ring 3 enables the bottom support structure and the external reinforcement system of the pipe body 1 to work together to bear the load. When the pipe is subjected to pressure from above, the reinforcing plate 2 transmits the force to the reinforcing ring 3, which then distributes it to the entire pipe body 1, preventing the bottom structure from being damaged due to isolated stress and enhancing the overall integrity and stability of the structure. The flat bottom structure of the reinforcing plate 2 ensures that the pipe fits tightly against the foundation cushion layer, allowing for more stable placement during installation, reducing pipe tilting caused by uneven bottoms, ensuring accurate drainage slope, and preventing localized water accumulation. Simultaneously, the flat bottom structure has a larger contact area with the soil, further dispersing pressure and improving the pipe's resistance to settlement in soft soil foundations.

[0031] In this embodiment, the reinforcing strip 7 in the fixing plate is the key link connecting the pipe body 1 and the fixing plate. Its top is fixed to the pipe body 1, and its bottom is connected to the fixing plate, forming a force chain of "pipe body 1 - reinforcing strip 7 - fixing plate." This chain evenly transfers the load of the pipe body 1 to the fixing plate and then diffuses it to the surrounding soil, preventing the fixing plate from detaching from the pipe body 1 due to excessive stress. The distribution of the reinforcing strip 7 also enhances the structural strength of the fixing plate, preventing it from bending or breaking under soil pressure and ensuring long-term effective bottom support. In this embodiment, the reinforcing ribs 4 are distributed at the top, bottom, and both sides of the pipe body 1, forming a fully enclosed structure. This design allows the pipe body 1 to bear stress evenly in all directions under complex stress environments. The top reinforcing rib 4 resists the vertical load above, the bottom reinforcing rib 4 enhances the bottom support, and the side reinforcing ribs 4 resist the lateral compression of the soil. The all-round enclosed structure allows the pipe body 1 to disperse the pressure through the synergistic effect of the reinforcing ribs 4 and the reinforcing rings 3, regardless of the external force from which direction it is subjected to, which greatly improves the pipe's resistance to deformation and durability, and adapts to the burial requirements under different geological conditions.

[0032] In this embodiment, the arched structure plays a crucial role in both pipe pressure resistance and soil compaction. Once the pipe is buried underground, the arched structure converts the vertical pressure from above into lateral thrust on the soil on both sides. The soil on both sides of the pipe body 1 exerts a reaction force on the pipe, creating a mechanical balance that offsets some of the vertical pressure, allowing the pipe body 1 to withstand greater loads without easily being damaged. Simultaneously, the arched design of the arched structure makes it easier to compact the soil on both sides of the pipe body 1 during backfilling—the curved surface guides the soil to fill to both sides, reducing voids, increasing soil compaction, and enhancing the lateral support of the soil on the pipe body 1. This further improves the overall stability of the pipeline, reduces the risk of pipe displacement or deformation due to soil loosening, and ensures the long-term stable operation of the drainage pipeline.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A D-shaped drainage pipe, characterized in that, The tube (1) includes a pipe body (1) and a reinforcing plate (2). Multiple sets of reinforcing rings (3) are fixedly connected to the outside of the pipe body (1). There is a gap between the reinforcing rings (3). Multiple sets of fixing plates are fixedly connected to the bottom of the pipe body (1). An arch structure is formed between the reinforcing plate (2) and the pipe body (1). An arc-shaped convex ring (6) is fixedly connected to one end of the pipe body (1). The inner diameter of the arc-shaped convex ring (6) is larger than the outer diameter of the pipe body (1).

2. A D-shaped drainage pipe according to claim 1, characterized in that, Multiple sets of reinforcing ribs (4) are fixedly connected between the reinforcing rings (3). The reinforcing rings (3) are rectangular, arched or polygonal structures, and the inner cavity of the tube (1) is circular, elliptical or polygonal.

3. A D-shaped drainage pipe according to claim 2, characterized in that, The reinforcing bar (4) has through holes (5).

4. A D-shaped drainage pipe according to claim 1, characterized in that, The top of the reinforcing plate (2) is fixedly connected to the reinforcing ring (3).

5. A D-shaped drainage pipe according to claim 4, characterized in that, The bottom of the reinforcing plate (2) is flat.

6. A D-shaped drainage pipe according to claim 5, characterized in that, The fixing plate is fixedly connected to multiple sets of reinforcing strips (7), and the top of the reinforcing strips (7) is fixedly connected to the tube body (1).

7. A D-shaped drainage pipe according to claim 2, characterized in that, The reinforcing ribs (4) are distributed on the top, bottom and sides of the pipe body (1) to surround the pipe body (1).

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