Composite anti-corrosion reinforced concrete drainage pipe

Abstract

The utility model discloses a composite anti-corrosion reinforced concrete drainage pipe which comprises a drainage pipe body, a plurality of embedded blocks are fixedly connected to the outer wall of the drainage pipe body, a butt joint steel ring is fixedly arranged on the outer wall of the drainage pipe body in a sleeved mode, an embedded steel ring is fixedly connected to the outer wall of the drainage pipe body, and the butt joint steel ring is fixedly connected with the embedded steel ring. The outer wall of the embedded steel ring is fixedly connected with an inner ring steel ring and an outer ring steel ring, and the outer wall of the drainage pipe body is fixedly connected with a butt joint concrete ring. By arranging the butt-joint steel ring, the embedded steel ring, the inner ring steel ring, the outer ring steel ring, the butt-joint concrete ring, the annular groove, the annular protruding block, the annular groove, the rubber gasket and the water swelling strip, the connection strength between the multiple drainage pipe bodies and the sealing performance and the waterproof performance after butt joint are improved, and the PVC lining layer improves the corrosion resistance of the interior of the drainage pipe bodies; the multiple embedded blocks play a role in supporting and rolling prevention.

Description

Technical Field

[0001] The utility model relates to the technical field of drain pipes, in particular to a composite anti-corrosion reinforced concrete drain pipe. Background Art

[0002] The composite reinforced concrete drain pipe is a drainage pipe that combines two materials, concrete and steel bars. Among them, concrete is the main constituent material of this kind of pipe, responsible for providing the strength and durability of the structure. The steel bars are embedded in the concrete to increase the load-bearing capacity and seismic resistance of the drain pipe. This combination makes the reinforced concrete drain pipe have high strength and corrosion resistance, and also has good economy and durability.

[0003] After retrieval, the patent document with the publication number: CN210890427U discloses a composite anti-corrosion reinforced concrete drain pipe, in which an anti-corrosion rubber block is bonded at the inner wall connection of pipe A and pipe B, and a water-swelling water-stop strip is bonded at a position near the top of the outer wall of pipe C. After the adjacent drain pipes are inserted, the connection part has an anti-corrosion rubber block and a water-swelling water-stop strip for sealing protection, having good sealing and anti-seepage performance and improving the use effect.

[0004] When the above drain pipe is actually used, the pipe orifices are docked by means of socket connection. However, after the drain pipe is buried, it is not only subjected to the vertical pressure of the soil, but also uneven settlement, generating lateral tension, resulting in loosening of the connection part and causing water leakage or seepage problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a composite anti-corrosion reinforced concrete drain pipe.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A composite anti-corrosion reinforced concrete drain pipe includes a drain pipe body. A plurality of embedded blocks are fixedly connected to the outer wall of the drain pipe body. A docking steel ring is fixedly sleeved on the outer wall of the drain pipe body. An embedded steel ring is fixedly connected to the outer wall of the drain pipe body. An inner ring steel ring and an outer ring steel ring are fixedly connected to the outer wall of the embedded steel ring. A docking concrete ring is fixedly connected to the outer wall of the drain pipe body. An annular groove is formed in the outer wall of the docking concrete ring. A sealing mechanism is arranged on the outer wall of the drain pipe body.

[0008] Preferably, the sealing mechanism includes an annular convex block. The inner wall of the annular groove is fixedly connected to the outer wall of the annular convex block. An annular groove is formed in the outer wall of the docking concrete ring. A rubber gasket is slidably sleeved on the inner wall of the annular groove. A water-swelling water-stop strip is slidably sleeved on the inner wall of the annular groove. By setting the sealing mechanism, the sealing performance between the drain pipe bodies is increased.

[0009] Preferably, a plurality of steel bar frames are provided inside the drain pipe body, and a plurality of steel bar rings are sleeved on the outer walls of the steel bar frames. The plurality of steel bar frames and the steel bar rings form an integral steel bar cage.

[0010] Preferably, a PVC lining layer is fixedly connected inside the drain pipe body, and the PVC lining layer is made of modified polyvinyl chloride material.

[0011] Preferably, the plurality of embedded blocks are divided into two groups and arranged in a ring shape. The plurality of embedded blocks facilitate the transportation of the drain pipe body and play a role in preventing rolling. The overall strength is lower than that of the concrete material, avoiding damage to the outer wall of the drain pipe body when stacked.

[0012] Preferably, the outer ring steel ring is sleeved outside the inner ring steel ring.

[0013] Compared with the prior art, the advantages of the present utility model are as follows:

[0014] In this solution, by setting the docking steel ring, embedded steel ring, inner ring steel ring, outer ring steel ring, docking concrete ring, annular groove, annular convex block, annular slot, rubber washer and water-swelling waterstop strip, the connection strength, sealing performance and waterproof performance between multiple drain pipe bodies are increased. The PVC lining layer increases the anti-corrosion property inside the drain pipe body, and the plurality of embedded blocks play a role in support and anti-rolling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for use in the following description of the specific embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 is a three-dimensional structure diagram of a composite anti-corrosion reinforced concrete drain pipe proposed by the present utility model;

[0017] Figure 2 is a cross-sectional structure diagram of a composite anti-corrosion reinforced concrete drain pipe proposed by the present utility model;

[0018] Figure 3 is a partial enlarged structure diagram of A in a composite anti-corrosion reinforced concrete drain pipe proposed by the present utility model; Figure 2 in;

[0019] Figure 4 is a structure diagram of the steel bar frame and steel bar ring of a composite anti-corrosion reinforced concrete drain pipe proposed by the present utility model;

[0020] Figure 5 Schematic diagram of the embedded steel ring, inner ring steel ring and outer ring steel ring of a composite anti-corrosion reinforced concrete drainage pipe proposed by the present utility model.

[0021] In the figure: 1, drainage pipe body; 2, steel bar frame; 3, steel bar ring; 4, embedded block; 5, PVC inner lining layer; 6, butt joint steel ring; 7, embedded steel ring; 8, inner ring steel ring; 9, outer ring steel ring; 10, butt joint concrete ring; 11, annular groove; 12, annular protrusion; 13, annular slot; 14, rubber gasket; 15, water-swellable water stop strip. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figures 1-5 shown, it relates to a composite anti-corrosion reinforced concrete drainage pipe, including a drainage pipe body 1. A plurality of steel bar frames 2 are arranged inside the drainage pipe body 1. A plurality of steel bar rings 3 are sleeved on the outer wall of the steel bar frames 2. The plurality of steel bar frames 2 and the plurality of steel bar rings 3 form a steel bar cage as a whole. Concrete is poured outside the steel bar cage through an existing casting mold, and finally the drainage pipe body 1 is formed.

[0024] A plurality of embedded blocks 4 are fixedly connected to the outer wall of the drainage pipe body 1. The plurality of embedded blocks 4 are divided into two groups and arranged in a ring shape. A PVC inner lining layer 5 is fixedly connected inside the drainage pipe body 1. The PVC inner lining layer 5 increases the anti-corrosion property inside the drainage pipe body 1.

[0025] A butt joint steel ring 6 is fixedly sleeved on the outer wall of the drainage pipe body 1. An embedded steel ring 7 is fixedly connected to the outer wall of the drainage pipe body 1. An inner ring steel ring 8 and an outer ring steel ring 9 are fixedly connected to the outer wall of the embedded steel ring 7. The outer ring steel ring 9 is sleeved outside the inner ring steel ring 8. After the annular protrusion 12 is pressed against the inner ring steel ring 8 and the outer ring steel ring 9, the port diameters of the inner ring steel ring 8 and the outer ring steel ring 9 are increased and decreased, forming an expansion extrusion force.

[0026] A butt joint concrete ring 10 is fixedly connected to the outer wall of the drainage pipe body 1. An annular groove 11 is formed on the outer wall of the butt joint concrete ring 10.

[0027] The outer wall of the drain pipe body 1 is provided with a sealing mechanism. The sealing mechanism includes an annular convex block 12. The inner wall of the annular groove 11 is fixedly connected to the outer wall of the annular convex block 12. The overall shape of the annular convex block 12 is conical. The outer wall of the butt concrete ring 10 is provided with an annular groove 13. A rubber gasket 14 is slidably sleeved on the inner wall of the annular groove 13. A water-swellable water stop strip 15 is slidably sleeved on the inner wall of the annular groove 13. The water-swellable water stop strip 15 is overall annular. The water-swellable water stop strip 15 can rapidly expand after contacting water to form a solid water stop barrier.

[0028] Working principle: When using the drain pipe body 1, a plurality of drain pipe bodies 1 are butted, and the head and tail ends are inserted into each other. And when inserting, the butt concrete ring 10 slides into the inside of the butt steel ring 6. At this time, the inner ring steel ring 8 and the outer ring steel ring 9 slide into the annular groove 11. After being subjected to an external extrusion force, when the outer wall of the inner ring steel ring 8 and the inner wall of the outer ring steel ring 9 encounter the annular convex block 12, they are forced to bend, so that their port diameters are increased and decreased respectively, and are extruded onto the inner wall of the annular groove 11 to form an expansion extrusion force, increasing the connection strength between the plurality of drain pipe bodies 1 and increasing the waterproof property; after the rubber gasket 14 and the water-swellable water stop strip 15 are extruded onto the inner wall of the butt steel ring 6, the sealing property and waterproof property after butting are increased, and the service time of the waterproof property is prolonged, while the PVC lining layer 5 increases the corrosion resistance inside the drain pipe body 1; when transporting a plurality of drain pipe bodies 1, the plurality of embedded blocks 4 play a role in supporting and preventing rolling.

[0029] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific implementation manners. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A composite anti-corrosion reinforced concrete drainage pipe, comprising a drainage pipe body (1), characterized in that, A plurality of embedded blocks (4) are fixedly connected to the outer wall of the drain pipe body (1). A butt joint steel ring (6) is fixedly sleeved on the outer wall of the drain pipe body (1). An embedded steel ring (7) is fixedly connected to the outer wall of the drain pipe body (1). An inner ring steel ring (8) and an outer ring steel ring (9) are fixedly connected to the outer wall of the embedded steel ring (7). A butt joint concrete ring (10) is fixedly connected to the outer wall of the drain pipe body (1). An annular groove (11) is formed in the outer wall of the butt joint concrete ring (10). A sealing mechanism is arranged on the outer wall of the drain pipe body (1).

2. The composite anti-corrosion reinforced concrete drain pipe according to claim 1, wherein The sealing mechanism includes an annular protrusion (12). The inner wall of the annular groove (11) is fixedly connected to the outer wall of the annular protrusion (12). An annular groove (13) is formed in the outer wall of the butt joint concrete ring (10). A rubber gasket (14) is slidably sleeved on the inner wall of the annular groove (13). A water-swellable water stop strip (15) is slidably sleeved on the inner wall of the annular groove (13).

3. A composite anti-corrosion reinforced concrete drain pipe according to claim 1, characterized in that, A plurality of steel bar frames (2) are arranged inside the drain pipe body (1). A plurality of steel bar rings (3) are sleeved on the outer walls of the steel bar frames (2).

4. A composite anti-corrosion reinforced concrete drain pipe according to claim 1, characterized in that, A PVC lining layer (5) is fixedly connected to the inside of the drain pipe body (1).

5. A composite anti-corrosion reinforced concrete drain pipe according to claim 1, characterized in that, The plurality of embedded blocks (4) are divided into two groups and arranged in an annular pattern.

6. The composite anti-corrosion reinforced concrete drain pipe according to claim 1, characterized in that, The outer ring steel ring (9) is sleeved outside the inner ring steel ring (8).

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