Lining pipe for trenchless pipeline repair

Abstract

The utility model discloses a lining pipe for trenchless pipeline repair, which comprises a lining outer pipe and a lining inner pipe, the lining inner pipe is fixed on the inner wall of the lining outer pipe, the outer side of the lining outer pipe is provided with a plurality of slots, the interiors of the slots are fixedly connected with a plurality of groups of springs, and the springs are fixed on the lining outer pipe. And first connecting blocks are fixedly connected to one sides of the multiple sets of springs, jacking plates are fixedly connected to one sides of the first connecting blocks, rotating rods are rotationally connected to the two sides of the first connecting blocks, and second connecting blocks are rotationally connected to one ends of the two rotating rods. Through the groove, the spring, the first connecting block, the jacking plate, the rotating rod and the second connecting block, after the lining outer pipe is placed in the pipeline, the jacking plate is extruded, then the first connecting block is driven to move towards the inner side, the spring is shrunk, the rotating rod rotates, and meanwhile, the jacking plate is extruded towards the outer side through the counter-acting force of the spring, so that the lining outer pipe is tightly attached to the inner wall of the pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field related to liner pipes, in particular to an liner pipe for trenchless pipeline repair. Background Art

[0002] Currently, urban underground pipelines are generally responsible for discharging rainwater, sewage, etc. Due to wear, aging, corrosion, etc. during use, and when subjected to external forces, the pipelines are likely to break or leak. In such cases, liner pipes are needed for repair.

[0003] Existing repair methods generally use trenchless pipe repair technology. When using a lined hose for repair, the liner is placed into the inner cavity of the pipe, leaving a gap between it and the inner wall of the pipe, making it impossible to fit, resulting in poor connection effect and poor practicality. Utility Model Content

[0004] The purpose of the utility model is to provide an inner liner pipe for trenchless pipeline repair, which can be installed in the pipeline through a groove, a spring, a first connecting block, a tightening plate, a rotating rod, and a second connecting block. After the inner liner outer pipe is placed in the pipeline, the tightening plate is squeezed, thereby driving the first connecting block to move inward, causing the spring to contract and the rotating rod to rotate. At the same time, through the reaction force of the spring, the tightening plate is squeezed outward, so that it fits tightly to the inner wall of the pipeline. At the same time, through the expansion water stop strip, it can expand rapidly when encountering water to form a denser sealing layer, and the connection effect is good.

[0005] To achieve the above-mentioned object, a liner pipe for trenchless pipeline repair is provided, comprising an inner liner outer pipe and an inner liner inner pipe, wherein the inner liner inner pipe is fixed to the inner wall of the inner liner outer pipe, a plurality of slots are formed on the outer side of the inner liner outer pipe, a plurality of groups of springs are fixedly connected to the interior of the slots, a first connecting block is fixedly connected to one side of the plurality of groups of springs, a tightening plate is fixedly connected to one side of the first connecting block, a rotating rod is rotatably connected to both sides of the first connecting block, and a second connecting block is rotatably connected to one end of each of the two rotating rods;

[0006] The lining inner pipe comprises an inner layer, a reinforcement layer, a glass fiber layer, a waterproof coating and an outer protective pipe.

[0007] According to the liner pipe for trenchless pipeline repair, one end of the second connecting block is fixed to the inner wall of the groove.

[0008] According to the liner pipe for trenchless pipeline repair, both ends of the liner outer pipe are inwardly inclined ports.

[0009] According to the inner liner pipe for trenchless pipeline repair, the reinforcement layer is arranged on the outer surface of the inner layer, the glass fiber layer is arranged on the outer surface of the reinforcement layer, the glass fiber layer is arranged on the outer surface of the outer protective pipe, and a waterproof coating is arranged between the glass fiber layer and the outer protective pipe.

[0010] According to the liner pipe for trenchless pipeline repair, the glass fiber layer is a diamond-shaped glass fiber mesh.

[0011] According to the liner pipe for trenchless pipeline repair, the reinforcement layer is a polyester felt layer.

[0012] According to the liner pipe for trenchless pipeline repair, the tightening plate is separated from the groove.

[0013] According to the liner pipe for trenchless pipeline repair, an expansion water stop strip is fixedly connected to one side of the tightening plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] This liner pipe for trenchless pipeline repair is provided with a groove, a spring, a first connecting block, a tightening plate, a rotating rod, and a second connecting block. After the inner liner outer pipe is placed in the pipeline, the tightening plate is squeezed, thereby driving the first connecting block to move inward, causing the spring to contract and the rotating rod to rotate. At the same time, the tightening plate is squeezed outward by the reaction force of the spring, so that it fits tightly to the inner wall of the pipeline. At the same time, through the expansion water stop strip, it can quickly expand when encountering water to form a denser sealing layer, and the connection effect is good.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a three-dimensional diagram of a liner pipe for trenchless pipeline repair according to the utility model;

[0019] Figure 2 This is a side cross-sectional view of a liner pipe for trenchless pipeline repair according to the present invention;

[0020] Figure 3 For the utility model Figure 2 An enlarged schematic diagram of the structure at A in the middle;

[0021] Figure 4 This is a structural schematic diagram of an inner lining pipe of an inner lining pipe for trenchless pipeline repair according to the utility model.

[0022] In the figure: 1. Lined outer tube; 2. Lined inner tube; 3. Slot; 4. Spring; 5. First connecting block; 6. Tightening plate; 7. Expansion water stop; 8. Rotating rod; 9. Second connecting block; 21. Inner layer; 22. Reinforcement layer; 23. Glass fiber layer; 24. Waterproof coating; 25. Outer protective tube. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The embodiment of the utility model provides a technical solution: a liner pipe for trenchless pipeline repair, comprising an inner liner outer pipe 1 and an inner liner inner pipe 2. The inner liner inner pipe 2 is fixed to the inner wall of the inner liner outer pipe 1. A plurality of slots 3 are provided on the outer side of the inner liner outer pipe 1. Multiple groups of springs 4 are fixedly connected inside the slots 3. One side of the multiple groups of springs 4 is fixedly connected to a first connecting block 5. One side of the first connecting block 5 is fixedly connected to a tightening plate 6. The tightening plate 6 is detached from the slot 3. One side of the tightening plate 6 is fixedly connected to an expansion water stop strip 7. Both sides of the first connecting block 5 are rotatably connected to a rotating rod 8. One end of the two rotating rods 8 is rotatably connected to the second connecting block 9. By arranging the slot 3, the spring 4, the first connecting block 5, the tightening plate 6, the rotating rod 8, and the second connecting block 9, after the liner outer pipe 1 is placed in the pipeline, the tightening plate 6 is squeezed, thereby driving the first connecting block 5 to move inward, causing the spring 4 to contract and the rotating rod 8 to rotate. At the same time, through the reaction force of the spring 4, the tightening plate 6 is squeezed outward, so that it fits tightly to the inner wall of the pipeline. At the same time, through the expansion water stop strip 7, it can quickly expand when encountering water to form a denser sealing layer, and the connection effect is good;

[0025] The lined inner pipe 2 includes an inner layer 21 , a reinforcement layer 22 , a glass fiber layer 23 , a waterproof coating 24 , and an outer protective pipe 25 .

[0026] One end of the second connecting block 9 is fixed to the inner wall of the slot 3, and both ends of the inner lining outer pipe 1 are inwardly inclined ports. The reinforcing layer 22 is arranged on the outer surface of the inner layer 21, and the glass fiber layer 23 is arranged on the outer surface of the reinforcing layer 22. The glass fiber layer 23 is arranged on the outer surface of the outer protective pipe 25. A waterproof coating 24 is provided between the glass fiber layer 23 and the outer protective pipe 25. The glass fiber layer 23 is a diamond-shaped glass fiber mesh, which can improve the toughness of the inner lining pipe, play a certain shaping role, and adapt to more complex working environments. The reinforcing layer 22 is a polyester felt layer, which improves the toughness and tensile strength of the pipe.

[0027] Working principle: When in use, the inner-lined outer pipe 1 is placed in the pipe to be repaired. After entering, the tightening plate 6 is squeezed, which drives the first connecting block 5 to move inward, causing the spring 4 to contract and the rotating rod 8 to rotate. At the same time, through the reaction force of the spring 4, the tightening plate 6 is squeezed outward, making it fit tightly to the inner wall of the pipe. At the same time, the expanding water stop strip 7 expands rapidly when it comes into contact with water, forming a denser sealing layer, and the connection effect is good.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A liner pipe for trenchless pipeline repair, comprising an outer liner pipe (1) and an inner liner pipe (2), characterized in that: The inner lining tube (2) is fixed to the inner wall of the inner lining tube (1), and a plurality of slots (3) are provided on the outer side of the inner lining tube (1). A plurality of groups of springs (4) are fixedly connected inside the slots (3), and one side of the plurality of groups of springs (4) is fixedly connected to a first connecting block (5), and one side of the first connecting block (5) is fixedly connected to a tightening plate (6). Both sides of the first connecting block (5) are rotatably connected to rotating rods (8), and one end of the two rotating rods (8) is rotatably connected to a second connecting block (9); The lined inner tube (2) comprises an inner layer (21), a reinforcement layer (22), a glass fiber layer (23), a waterproof coating (24), and an outer protective tube (25).

2. The liner pipe for trenchless pipeline repair according to claim 1, characterized in that: One end of the second connecting block (9) is fixed to the inner wall of the slot (3).

3. The liner pipe for trenchless pipeline repair according to claim 1, characterized in that: Both ends of the inner-lined outer tube (1) are inwardly inclined ports.

4. The liner pipe for trenchless pipeline repair according to claim 1, characterized in that: The reinforcing layer (22) is arranged on the outer surface of the inner layer (21), the glass fiber layer (23) is arranged on the outer surface of the reinforcing layer (22), the glass fiber layer (23) is arranged on the outer surface of the outer protective tube (25), and a waterproof coating (24) is provided between the glass fiber layer (23) and the outer protective tube (25).

5. The liner pipe for trenchless pipeline repair according to claim 1, characterized in that: The glass fiber layer (23) is a diamond-shaped glass fiber mesh.

6. The liner pipe for trenchless pipeline repair according to claim 1, characterized in that: The reinforcement layer (22) is a polyester felt layer.

7. The liner pipe for trenchless pipeline repair according to claim 1, characterized in that: The tightening plate (6) is separated from the slot (3).

8. The liner pipe for trenchless pipeline repair according to claim 1, characterized in that: An expansion water stop strip (7) is fixedly connected to one side of the tightening plate (6).

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