Water supply pipeline repaired by pipeline material

Abstract

The utility model belongs to the technical field of pipeline repair, and discloses a water supply pipeline repaired by using a material of the pipeline. The device comprises a to-be-repaired pipeline and a cast iron pipeline arranged outside the to-be-repaired pipeline in a sleeving mode, an opening is formed in the cast iron pipeline, a plug hole is formed in the to-be-repaired pipeline and corresponds to the opening, and the plug hole is in interference fit with a leakage sealing plug blank made of the same material as the to-be-repaired pipeline. And a gap between the leakage sealing plug blank and the conical plug hole is coated with glue. The application scene of the utility model is that the reserved plug blank made of the same material as the to-be-repaired pipeline is used for repairing the to-be-repaired pipeline in the water supply pipeline, and the conical plug hole with small inner wall diameter and large outer wall diameter is excavated at the crack damage part on the to-be-repaired pipeline during repairing; the reserved plug blank is made into a shape matched with the plug hole, the reserved plug blank and the plug hole are in interference fit, the gap between the reserved plug blank and the plug hole is sealed through glue pouring, and it is guaranteed that the reserved plug blank is completely consistent with the material structure and performance in the to-be-repaired pipeline.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipeline repair technical field, concretely relates to a kind of water supply pipeline repaired by using pipeline material itself. BACKGROUND

[0002] Pipeline repair refers to the damaged, leaking conveying pipeline is restored to normal use function by various technologies, and its repair includes two technologies of outer anticorrosive coating repair and internal repair.

[0003] At present, there are many ways for pipeline repair, for example, according to repair method, it is divided into excavation repair and trenchless repair;According to repair position, it is divided into local repair and overall repair;According to repair purpose, it is divided into structural repair, such as crack repair and fracture repair, and functional repair, such as leakage and blockage.

[0004] The above repair has many ways to realize, but a difficult problem bothering pipeline repair industry is how to quickly and conveniently repair pipeline in water supply pipeline?The current method is that when crack-shaped damage occurs in water supply pipeline, the crack damage needs to be cut off before water stop, and then a haugh joint or other repairing device is used for repairing, but for crack-shaped damage, the repairing cost is high, the water stop time is long, which seriously affects water supply, and in addition, water pollution may occur due to haugh joint repair. UTILITY MODEL CONTENT

[0005] The utility model aims at the technical problem mentioned in the above background technology, and realizes the following technical scheme:

[0006] A water supply pipeline repaired by using pipeline material itself, comprising a pipeline to be repaired and a cast iron pipeline sleeved outside the pipeline to be repaired, an opening is formed in the cast iron pipeline, a plug hole is formed in the pipeline to be repaired, the plug hole corresponds to the opening, a leak sealing plug blank of the same material as the pipeline to be repaired is in interference fit with the plug hole, and glue is coated in the gap between the leak sealing plug blank and the conical plug hole.

[0007] Preferably, the plug hole is one of conical plug hole, inverted conical plug hole or cylindrical plug hole.

[0008] Further, the plug hole is a conical plug hole.

[0009] Preferably, the diameter of the conical plug hole increases in the direction from the inner wall to the outer wall of the water supply pipeline, the conical plug hole covers the damaged crack on the water supply pipeline, and the smaller end of the conical plug hole faces the inside of the water supply pipeline.

[0010] Preferably, the outer diameter of the leak sealing plug blank is greater than the inner diameter of the inner wall of the conical plug hole.

[0011] Preferably, the leakage sealing plug blank seals the tapered plug hole through the opening.

[0012] Preferably, a steel cover plate matching the cast iron pipeline is further installed on the cast iron pipeline, and the steel cover plate seals the opening.

[0013] Preferably, the axial direction of the water supply pipeline is consistent with the axial direction of the leakage sealing plug blank, so as to ensure that the outer surface of the leakage sealing plug blank coincides with the outer surface of the pipeline to be repaired.

[0014] Preferably, the glue is located between the circumferential surface of the leakage sealing plug blank and the side wall of the tapered plug hole and between the opening and the leakage sealing plug blank.

[0015] Preferably, the steel cover plate is fixed on the cast iron pipeline, and the joint between the steel cover plate and the cast iron pipeline is connected through welding.

[0016] Preferably, the steel cover plate and the cast iron pipeline are fixed through riveting.

[0017] Preferably, the steel cover plate and the cast iron pipeline are fixed through welding.

[0018] Preferably, a fixing hole is formed in the steel cover plate, and a rivet is riveted in the fixing hole, the rivet connects the steel cover plate and the cast iron pipeline, and the joint between the steel cover plate and the cast iron pipeline is connected through welding.

[0019] Preferably, the glue is also located between the steel cover plate and the leakage sealing plug blank and between the outer surface of the cover plate and the cast iron pipeline.

[0020] The utility model discloses the beneficial effect is:

[0021] (1) the application scene in the utility model is in the repair of water supply pipeline, for this, the present application adopts the plug blank of the same material of the pipeline to be repaired to repair the pipeline to be repaired, and the crack damage of the pipeline to be repaired is excavated into a plug hole, and the plug blank is made into a shape matching the plug hole, wherein, the best effect of the present application is that the plug hole is a tapered plug hole, and the plug blank is a tapered plug blank, and the two are interference fit, wherein, the shape of the tapered plug hole is that the inner wall diameter is small and the outer wall diameter is large, then glue is poured in the gap between the two to seal, so that the plug blank and the pipeline to be repaired are perfectly combined to form a plug blank, so as to ensure that the material structure and performance of the plug blank and the pipeline to be repaired are completely consistent, the above method can realize rapid repair, and only the crack damage near the pipeline to be repaired is excavated, so that the excavation area is small and the repair cost is low.

[0022] (2) The reserved plug blank in the utility model needs to make the axial direction of the pipeline to be repaired consistent with the axial direction of the sealing plug blank, and the outer surface of the sealing plug blank substantially coincides with the outer surface of the pipeline to be repaired, so that the repair effect is better.

[0023] (3) The reserved plug blank in the utility model can better achieve the repair effect when repairing the pipeline to be repaired.

[0024] (4) The sealing plug blank in the utility model can resist the water flow pressure in the repaired pipeline due to the matching with the plug hole, that is, the sealing plug blank has the pressure resistance, so that the repair effect can be better achieved, and the best effect is that the plug hole is a tapered plug hole, that is, the sealing plug blank is tapered.

[0025] (5) The reserved plug blank in the utility model can better achieve the repair effect when repairing the pipeline to be repaired. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structure schematic view of the utility model in embodiment 1;

[0027] Figure 2 It is a sectional view of the utility model in embodiment 1;

[0028] Figure 3 It is a structure schematic view of the sealing plug blank in the utility model;

[0029] Figure 4 It is a sectional view of the pipeline to be repaired in the utility model;

[0030] Figure 5 It is a structure schematic view of the cast iron pipeline in the utility model;

[0031] Figure 6 It is a structure schematic view of the pipeline to be repaired in the utility model;

[0032] Figure 7 It is a structure schematic view of the utility model in embodiment 2;

[0033] Figure 8 It is a sectional view of the utility model in embodiment 2;

[0034] Figure 9 This is a schematic diagram of the rigid cover plate in this utility model.

[0035] In the diagram: 1. Pipe to be repaired; 2. Cast iron pipe; 3. Opening; 4. Conical plug hole; 5. Leak-sealing plug blank; 6. Rigid cover plate; 7. Fixing hole. Detailed Implementation

[0036] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations and embodiments.

[0037] The pre-reserved plug blank made of the same material as the pipeline to be repaired, as described in this utility model, refers to: during the first repair construction, a section of material of the same material as the pipeline to be repaired is reserved (it should be noted that the reserved material is a section of pipeline that our company pre-cuts and keeps at the customer's location, which can be directly taken from the customer when needed). This ensures that the material used for repair is completely consistent with the material structure and performance of the damaged pipeline. In addition, the reserved plug blank can be a pipe, a sheet, or other materials.

[0038] This invention can repair pipelines that need repair, provided that the repair space and the depth of the opening are within the allowable range. It can open and repair the damaged pipeline (i.e., the pipeline to be repaired) without having to dig out the entire damaged area of ​​the pipeline. Therefore, compared with the method of excavating and repairing the entire pipeline, this invention has the advantages of small excavation area and low repair cost.

[0039] Example 1

[0040] like Figures 1-6 As shown, a water supply pipe repaired using the pipe's own material includes a pipe to be repaired 1 and a cast iron pipe 2 fitted outside the pipe to be repaired 1. The cast iron pipe 2 has an opening 3 (mainly made by cutting). The pipe to be repaired 1 has a plug hole. In this embodiment, a conical plug hole 4 is used (the conical plug hole 4 is formed by repairing the cracked and damaged part of the pipe 1 by means other than digging out). The conical plug hole 4 corresponds to the opening 3. A sealing plug blank 5 made of the same material as the pipe to be repaired 1 is interference-fitted into the conical plug hole 4. Glue is also applied to the gap between the sealing plug blank 5 and the conical plug hole 4. The sealing plug blank 5 seals the conical plug hole 4 through the opening 3.

[0041] The adhesive is located between the circumferential surface of the sealing plug blank 5 and the side wall of the conical plug hole 4, and between the opening 3 and the sealing plug blank 5.

[0042] The repair process for the aforementioned pipeline is as follows:

[0043] First, excavate the ground and take material from the pre-reserved plug blank of the same material as the pipe to be repaired as the plug blank. That is, reserve a plug blank of the same material as the water supply pipe.

[0044] Next, a conical plug hole 4 is made on the surface of the water supply pipe. The diameter of the conical plug hole 4 increases from the inner wall to the outer wall of the water supply pipe. This conical plug hole 4 covers the damaged crack, and the smaller end of the conical plug hole 4 faces the inside of the water supply pipe. Specifically, a hole is made in the pipe to be repaired and chamfered, forming the conical plug hole 4. The conical plug hole 4 has a small inner diameter and a large outer diameter.

[0045] Furthermore, based on the conical plug hole 4, a sealing plug blank 5 that mates with the conical plug hole 4 is separated from the plug blank, and the conical plug hole 4 is sealed with adhesive using the sealing plug blank 5. Specifically, the sealing plug blank 5 is hammered into the opening 3 and into the cast iron pipe 2, and then into the conical plug hole 4. The outer diameter of the sealing plug blank 5 is larger than the inner diameter of the inner wall of the conical plug hole 4, thus achieving an interference fit between the sealing plug blank 5 and the conical plug hole 4. When the sealing plug blank 5 enters the conical plug hole 4, it is necessary to ensure that the axial direction of the pipe 1 to be repaired is consistent with the axial direction of the sealing plug blank 5, and until the outer surface of the sealing plug blank 5 basically overlaps with the outer surface of the pipe 1 to be repaired.

[0046] Stop hammering and pour glue (this glue has a fast curing effect) between the outer surface of the sealing plug blank 5 and the side wall of the conical plug hole 4. When pouring the glue, make sure that all the gaps inside are completely filled with glue and there are no air bubbles. Wait for the glue to cure. (It should be noted that when pouring the glue, make sure that all the gaps inside are completely filled with glue and there are no air bubbles.)

[0047] Finally, the repair work can be completed by sealing the cast iron pipe 2, and the ground can be backfilled.

[0048] Example 2

[0049] This embodiment is basically the same as Embodiment 1, except that, as Figures 7-9 As shown, a rigid cover plate 6 matching the cast iron pipe 2 is also installed on the cast iron pipe 2. The rigid cover plate 6 seals the opening 3 and is fixed by adhesive. Specifically, the rigid cover plate 6 is fixed on the cast iron pipe 2 to seal the opening 3. In this embodiment, the rigid cover plate 6 is riveted to the cast iron pipe 2 to seal the opening 3, and the joint between the rigid cover plate 6 and the cast iron pipe 5 is connected by welding. More specifically, the rigid cover plate 6 has a fixing hole 7, and a rivet is riveted to the fixing hole 7. The rivet connects the rigid cover plate 6 and the cast iron pipe 2, and the joint between the rigid cover plate 6 and the cast iron pipe 2 is connected by welding.

[0050] The glue is also between the steel cover plate 6 and the leakage sealing plug blank 5, and between the steel cover plate 6 and the outer surface of the cast iron pipeline 2, that is, the glue is filled between the steel cover plate 6, the opening 3, the leakage sealing plug blank 5 and the tapered plug hole 4, and no air bubbles are required; specifically, the amount of glue must be greater than the required amount between the opening 3, the leakage sealing plug blank 5 and the tapered plug hole 4, so that when the outer steel cover plate 6 is covered, the steel cover plate 6 and the leakage sealing plug blank 5 and the steel cover plate 6 and the outer surface of the cast iron pipeline 2 are completely filled with glue without air bubbles, or uniform glue can also be applied on the side of the rigid cover plate 5 facing the opening, so that the steel cover plate 6 and the outer surface of the cast iron pipeline 2 are completely filled with glue.

[0051] The basic principle and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and various changes and improvements can be made without departing from the spirit and scope of the present application. These changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A water service pipe repaired with the pipe's own material, characterized by: The application relates to a cast iron pipeline and a pipeline to be repaired, wherein the cast iron pipeline is provided with an opening, and the pipeline to be repaired is provided with a plug hole corresponding to the opening; the plug hole is provided with a sealing plug blank made of the same material as the pipeline to be repaired; and glue is coated in the gap between the sealing plug blank and the conical plug hole.

2. The water service pipe of claim 1, wherein: The plug hole is one of a conical plug hole, an inverted conical plug hole or a cylindrical plug hole.

3. The water service pipe of claim 2, wherein: The plug hole is a conical plug hole.

4. The water supply pipeline according to claim 3, characterized in that: The diameter of the conical plug hole increases in the direction from the inner wall to the outer wall of the water supply pipeline, the conical plug hole covers a damaged crack on the water supply pipeline, and the smaller end of the conical plug hole faces the inside of the water supply pipeline.

5. The water service pipe of claim 4, wherein: The outer diameter of the sealing plug blank is greater than the inner diameter of the inner wall of the conical plug hole.

6. The water service pipe of claim 5, wherein, The sealing plug blank seals the conical plug hole through the opening.

7. Water supply conduit according to any of claims 1-6, characterized in that The cast iron pipeline is further provided with a steel cover plate matched with the cast iron pipeline, and the steel cover plate seals the opening.

8. The water service pipe of claim 7, wherein, The steel cover plate is fixed on the cast iron pipeline, and the joint between the steel cover plate and the cast iron pipeline is connected through welding.

9. The water service pipe of claim 8, wherein, The steel cover plate and the cast iron pipeline are fixed through riveting.

10. The water service pipe of claim 8, wherein, The steel cover plate and the cast iron pipeline are fixed through welding.

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