CN212226409U

CN212226409U - Pipeline restoration bushing pipe

Info

Publication number: CN212226409U
Application number: CN202020622442.0U
Authority: CN
Inventors: 乐少兵
Original assignee: Yangzhou Juye Wear Resistant Composite Material Co ltd
Current assignee: Yangzhou Juye Wear Resistant Composite Material Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-12-25
Anticipated expiration: 2030-04-23

Abstract

The utility model provides a bushing pipe is restoreed to pipeline, belongs to underground piping restoration technical field, and the cross-section of bushing pipe comprises a plurality of sections convex circular arc and the smooth connection of concave circular arc, and convex circular arc is plum blossom petal overall structure with concave circular arc connection, the utility model discloses the bushing pipe cross-section is plum blossom petal column structure, and its profile external diameter has been compared with traditional circle bushing pipe external diameter and has been reduced, makes the bushing pipe external diameter keep great clearance with by prosthetic pipeline internal diameter, has greatly reduced traction force like this, has effectively eliminated because too big traction force causes the hidden danger of bushing pipe damage, makes construction quality obtain guaranteeing, has obviously improved work efficiency simultaneously.

Description

Pipeline restoration bushing pipe

Technical Field

The invention belongs to the technical field of pipeline repair, relates to a pipeline liner tube, and particularly relates to an underground pipeline repair liner tube capable of reducing traction resistance in a repair process and improving repair efficiency.

Background

Urban underground pipeline doors are various in types and are criss-cross, especially, conveying pipelines such as tap water pipelines and heating pipelines have certain pressure, the pipelines are damaged due to construction problems or due to long-term overhaul to cause leakage failure, if the pipelines are re-laid, a large amount of input of social resources such as manpower and material resources is caused, and the production, life, traveling and environment of people in a construction area are greatly influenced. At present, in order to overcome the problems, the original damaged pipeline is lined with a nylon or stainless steel circular liner pipe, excavation is not needed after the method is adopted, and the original pipeline is reused. The liner tube is reinforced due to the reutilization of the original pipeline, so that the purpose of repairing the original damaged pipeline is achieved, the compressive strength of the liner tube is ensured, and a large amount of maintenance cost is saved. However, each section of the underground pipeline is about 300 meters generally, as the round liner pipe gradually enters the repaired pipeline under the traction action of the traction equipment, the traction resistance of the round liner pipe is increased, and particularly when the original pipeline has a curve, the traction resistance of the round liner pipe is obviously increased to different degrees along with the change of the curvature of the original pipeline. The excessive traction force has great influence on the construction quality, and can cause the tearing of the welding seam of the circular liner tube in serious conditions, thereby bringing immeasurable loss. In order to reduce the traction resistance, it is important to design a liner tube with a novel structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims at present among the pipeline repair process traction resistance big, traction resistance influences construction quality very much, causes the bushing pipe welding seam to tear, and the low grade of repair efficiency is not enough, provides a pipeline repair bushing pipe, and the traction resistance in the reducible repair process, the bushing pipe that reducible traction force caused damages, can improve construction quality, further improves repair efficiency.

The technical scheme of the utility model: a pipe repairing liner pipe comprises an underground buried layer and an underground pipe arranged in the underground buried layer; the method is characterized in that: the inside of underground piping is equipped with the bushing pipe, the cross-section of bushing pipe comprises a plurality of sections of convex circular arcs and concave circular arc smooth connection, convex circular arc is connected with concave circular arc and is plum blossom petal form overall structure, the outline of every section of convex circular arc with underground piping's interior outline forms clearance fit, the both ends sealed fixed of bushing pipe is equipped with the end cap, and wherein the center of one side end cap is equipped with the centre bore, is equipped with in the centre bore and pressurizes the joint, and the bottom of end cap is equipped with row and presses the hole, it is equipped with the sealing plug to arrange the downthehole connection of.

The arc length and radian of the convex arc and the concave arc are the same, and the number of the convex arc and the concave arc is not less than 8.

The plug and the liner tube are sealed and fixed through gluing or welding.

The pressure discharge hole is a threaded hole, the sealing plug is a threaded plug, and the threaded plug is screwed with the pressure discharge hole.

The center hole is a threaded hole, the pressurizing joint is an external threaded pipe, one end of the external threaded pipe is screwed with the center hole, and a fastening nut which is connected with the plug in a locking mode is arranged outside the external threaded pipe.

The utility model has the advantages that: the utility model provides a pair of pipeline restoration bushing pipe, the cross-section of bushing pipe is connected by a plurality of sections convex circular arcs and concave circular arc are smooth to be constituted, and convex circular arc is connected with concave circular arc and is plum blossom petal form overall structure, the utility model discloses the bushing pipe cross-section is plum blossom petal form structure, and its profile external diameter is compared with traditional circle bushing pipe external diameter and has been obtained dwindling, makes the bushing pipe external diameter keep great clearance with by prosthetic pipeline internal diameter, has greatly reduced traction force like this, has effectively eliminated because too big traction force causes the hidden danger of bushing pipe damage, makes construction quality obtain the assurance, has obviously improved work efficiency simultaneously.

Drawings

Fig. 1 is the whole elevation full-section structure schematic diagram of the utility model.

Fig. 2 is the overall side view structure diagram of the utility model.

Fig. 3 is a schematic view of the three-dimensional structure of the lining tube of the present invention.

Fig. 4 is a schematic view of the cross-sectional structure of the lining tube of the present invention.

In the figure: the underground pipe comprises an underground buried layer 1, an underground pipeline 2, a liner pipe 3, a convex arc 3-1, a concave arc 3-2, a plug 4, a central hole 5, a pressure discharge hole 6 and the ground 7.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1-4, a pipe repairing liner pipe comprises an underground filling layer 1 and an underground pipe 2 arranged in the underground filling layer 1, wherein a liner pipe 3 is arranged inside the underground pipe 2, the cross section of the liner pipe 3 is formed by smoothly connecting a plurality of sections of convex circular arcs 3-1 and concave circular arcs 3-2, the convex circular arcs 3-1 and the concave circular arcs 3-2 are connected to form a plum-petal-shaped integral structure, the outline of each section of convex circular arc 3-1 is in clearance fit with the inner outline of the underground pipe 2, plugs 4 are fixedly arranged at two ends of the liner pipe 3 in a sealing manner, a center hole 5 is arranged in the center of each plug 4, a pressure charging connector is arranged in the center hole 5, a pressure discharge hole 6 is arranged at the bottom of each plug 4, and a sealing plug is connected in the.

As shown in fig. 1-4, in the pipe repairing liner pipe, the arc length and radian of a convex arc 3-1 and a concave arc 3-2 are the same, and the number of the convex arc 3-1 and the concave arc 3-2 is not less than 8; the plug 4 and the liner tube 3 are sealed and fixed through gluing or welding; the pressure discharge hole 6 is a threaded hole, the sealing plug is a threaded plug, and the threaded plug is screwed with the pressure discharge hole 6; the central hole 5 is a threaded hole, the pressurizing joint is an external threaded pipe, one end of the external threaded pipe is screwed with the central hole 5, and a fastening nut which is connected with the plug 4 in a locking manner is arranged outside the external threaded pipe.

As shown in fig. 1-4, a method of using a pipe rehabilitation liner is as follows: the method comprises the steps that a liner tube 3 is installed in an original underground pipeline 2 through traction equipment, two ends of a plum blossom-shaped liner tube 3 are respectively provided with a plug 4 for sealing, one plug 4 is provided with a high-pressure gas or high-pressure water injection joint 5 and an exhaust or drainage screw plug 6, when the plum blossom-shaped liner tube 3 is installed, high-pressure gas or high-pressure water is injected into the plum blossom-shaped liner tube 3 through the high-pressure gas or high-pressure water injection joint 5, and the plum blossom-shaped liner tube gradually expands under the action of the high-pressure gas or the high-pressure water until the plum blossom-shaped liner tube is tightly attached to the.

Claims

1. A pipe repairing liner pipe comprises an underground filling layer (1) and an underground pipe (2) arranged in the underground filling layer (1); the method is characterized in that: the inside of underground piping (2) is equipped with bushing pipe (3), the cross-section of bushing pipe (3) is by a plurality of sections convex circular arc (3-1) and concave circular arc (3-2) smooth connection constitution, convex circular arc (3-1) are connected with concave circular arc (3-2) and are plum blossom petal form overall structure, the outline of every section convex circular arc (3-1) with the interior outline of underground piping (2) forms clearance fit, the both ends of bushing pipe (3) are sealed fixed and are equipped with end cap (4), and wherein the center of one side end cap (4) is equipped with centre bore (5), are equipped with in centre bore (5) and fill pressure and connect, and the bottom of end cap (4) is equipped with row's pressure hole (6), the internal connection of row's pressure hole (6) is equipped with the sealing plug.

2. A pipe rehabilitation liner according to claim 1, wherein: the arc length and radian of the convex arc (3-1) and the concave arc (3-2) are the same, and the number of the convex arc (3-1) and the concave arc (3-2) is not less than 8.

3. A pipe rehabilitation liner according to claim 1, wherein: the plug (4) and the liner tube (3) are sealed and fixed through gluing or welding.

4. A pipe rehabilitation liner according to claim 1, wherein: the pressure discharge hole (6) is a threaded hole, the sealing plug is a threaded plug, and the threaded plug is screwed with the pressure discharge hole (6).

5. A pipe rehabilitation liner according to claim 1, wherein: the center hole (5) is a threaded hole, the pressurizing joint is an external threaded pipe, one end of the external threaded pipe is screwed with the center hole (5), and a fastening nut which is connected with the plug (4) in a locking mode is arranged outside the external threaded pipe.