Non-excavation pipeline repair lining pipe

Abstract

The utility model relates to the technical field of pipeline repair, in particular to a trenchless pipeline repair lining pipe which comprises an outer pipe, traction mechanisms used for reducing friction to drag a pipeline are arranged on the inner circumferential wall of the outer pipe, a bundling assembly is arranged between the opposite sides of the traction mechanisms, and each traction mechanism comprises an insertion ring inserted into the inner circumferential wall of the outer pipe. And a limiting ring is fixed on the upper surface of the inserting ring. According to the trenchless pipeline repair lining pipe, through mutual cooperation of the traction mechanism, the bundling assembly and the like, bundling belts can be distributed and wound into the multiple lining pipes at equal intervals through special deformation equipment, so that the size of the lining pipes is temporarily reduced to about one third; and then the lining pipeline with the reduced size is dragged into an online pipeline through traction equipment, and after the pipeline is completely dragged in place, a cutting tool is used for cutting the binding belt, so that the multiple lining pipes are amplified to be attached to the inner wall of the outer pipe, and the purpose of repairing is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline repair, and in particular to a trenchless pipeline repair liner pipe. Background Art

[0002] After long-term use, the inner surface of the pipeline will be damaged. In order not to affect the normal operation of traffic, it is necessary to choose a non-excavation pipeline repair method to repair the inner surface of the pipeline. When repairing the pipeline, the liner pipe needs to be close to the inner surface of the pipeline to achieve the repair of the pipeline.

[0003] The inner liner pipe plugging device for non-excavation pipeline repair disclosed in Chinese Patent Publication No. (CN217951640U) includes a plugging frame, a connecting piece and a binding belt. The connecting piece is evenly slidably inserted into the outer surface of the plugging frame, and the binding belt is inserted into the outer surface of one end of the connecting piece. The outer surface of the plugging frame is evenly provided with plugging grooves, and the side of the plugging frame is evenly provided with limiting sliding grooves. A clamping plate is fixedly installed inside the connecting piece, and the side end surface of the clamping plate is symmetrically provided with insertion holes. Rubber blocks are evenly fixedly installed on the side of the clamping plate, and a plug-in plate is fixedly connected to one end of the clamping plate. A clamping block is fixedly connected to the side of one end of the plug-in plate. The utility model can adapt to and quickly plug pipe ends of different sizes by adjusting the connecting piece on the outer surface of the plugging frame, thereby avoiding affecting the efficiency of pipeline repair by the inner liner pipe.

[0004] However, the above patent still has the problem of poor repair effect of the liner pipe for pipeline repair. When the liner hose is pulled into the pipeline, there is friction between the outer wall of the liner hose and the pipeline to be repaired, which will cause wear on the outer wall of the liner pipe, affecting the quality of the liner pipe and affecting the pipeline repair. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present application provides a trenchless pipeline repair liner pipe, which has the advantages of good pipeline repair effect, etc., and solves the problem of poor repair effect of pipeline repair liner pipe.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a trenchless pipeline repair liner pipe, comprising an outer pipe, the inner peripheral wall of the outer pipe is provided with a traction mechanism for reducing friction and traction of the pipeline, and a convergence component is provided between opposite sides of the traction mechanism;

[0007] The traction mechanism includes a plug-in ring inserted into the inner circumferential wall of the outer tube, a limiting ring is fixed on the upper surface of the plug-in ring, two fixing frames are fixed on the front and rear sides of the upper surface of the limiting ring, fixing plates are fixed on the opposite sides of the fixing frames on the front and rear sides, rotating holes are opened on the opposite sides of the fixing plates on the left and right sides, the inner circumferential walls of the rotating holes on the left and right sides are rotatably connected with rotating shafts, and rotating rollers are fixed on the outer surface of the rotating shafts.

[0008] By adopting this technical solution, the fitting friction between the inner liner pipe and the inner wall of the outer pipe can be reduced through the traction mechanism, thereby reducing frictional resistance and facilitating pipeline repair and use.

[0009] Furthermore, the inner diameter of the limiting ring is equal to the inner diameter of the plug-in ring, and the outer diameter of the limiting ring is greater than the inner diameter of the outer tube.

[0010] By adopting this technical solution, the plug-in ring can be inserted into the outer tube before traction and fixed by the limiting ring, which is convenient for intubation.

[0011] Furthermore, the fixing frame is an L-shaped plate, and a protective sleeve is fixed to the outer surface of the rotating roller.

[0012] By adopting this technical solution, the rotating roller can rotate together with the movement of the inner liner pipe to reduce the contact friction between the inner liner pipe and the inner wall of the outer pipe, thereby reducing frictional resistance.

[0013] Furthermore, threaded columns are fixed to both left and right ends of the rotating shaft, and the outer surfaces of the threaded columns are threadedly connected to limit nuts.

[0014] By adopting this technical solution, the threaded column can be slidably connected to the inside of the rotating hole along with the rotating shaft, and the position of the rotating shaft can be adjusted and limited by tightening the limiting nut.

[0015] Furthermore, the tightening assembly includes a plurality of repair liner tubes slidably connected to opposite sides of the rotating rollers on the front and rear sides, and the outer surfaces of the plurality of repair liner tubes are wrapped with tightening belts.

[0016] By adopting this technical solution, the liner pipe is wound with the contraction belt equidistantly distributed inside several liner pipes through a special deformation device, and then the liner pipe with reduced volume is pulled into the online pipeline through a pulling device.

[0017] Furthermore, the number of the tightening belts is not less than two and they are evenly distributed on the outer surface of the repaired liner pipe.

[0018] By adopting this technical solution, the constriction belts are evenly distributed and wrapped around the interior of several liner tubes through a special deformation device, so as to temporarily reduce the volume of the liner tubes to about one third.

[0019] Furthermore, the width of the fixing frame is smaller than the width of the limiting ring.

[0020] By adopting this technical solution, the positioning of the rotating roller can be conveniently limited by arranging the fixing frame on the limiting ring.

[0021] Furthermore, the fixing plate is fixed to the middle of the opposite side of the fixing frame at the front and rear sides, and the height of the fixing plate is smaller than the height of the fixing frame.

[0022] By adopting this technical solution, the rotating shaft is placed through the fixed plate and the rotating hole, and then the rotating roller is connected to facilitate pipeline repair.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] 1. The trenchless pipeline repair liner pipe, by setting up the mutual cooperation between the traction mechanism and the contraction component, can use the special deformation equipment to evenly distribute the contraction belt around the interior of several liner pipes, so as to temporarily reduce the volume of the liner pipe to about one third, and then use the traction equipment to pull the reduced volume of the liner pipe into the online pipeline. After the pipeline is completely pulled into place, the cutting tool is used to cut the contraction belt, so that the several liner pipes are enlarged and fit the inner wall of the outer pipe, so as to achieve the purpose of repair.

[0025] 2. The trenchless pipeline repair liner pipe, through the mutual cooperation between the traction mechanism and the contraction component, can reduce the inner liner pipe by the contraction belt and then pull it out into the outer pipe through the traction equipment. At the same time, the plug-in ring can be inserted into the outer pipe before traction and fixed by the limit ring. Subsequently, the inner liner pipe can be rotated and pulled between two rotating rollers during traction. The rotating rollers can rotate together with the movement of the inner liner pipe to reduce the fitting friction between the inner liner pipe and the inner wall of the outer pipe, thereby reducing the friction resistance and facilitating the use of pipeline repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of this application;

[0027] Figure 2 This is a schematic diagram of the traction mechanism for this application;

[0028] Figure 3 This is a side view of the traction mechanism of this application;

[0029] Figure 4 This is a schematic diagram of the closing components of this application.

[0030] In the figure: 1. outer tube; 2. traction mechanism; 201. plug-in ring; 202. limit ring; 203. fixing frame; 204. fixing plate; 205. rotating hole; 206. rotating shaft; 207. rotating roller; 208. threaded column; 209. limit nut; 3. tightening assembly; 301. repair liner tube; 302. tightening belt. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] See also Figure 1 The trenchless pipeline repair liner pipe in this embodiment includes an outer pipe 1. The inner wall of the outer pipe 1 is provided with a traction mechanism 2 for reducing friction and pulling the pipeline. A convergence component 3 is provided between the opposite sides of the traction mechanism 2.

[0033] See also Figure 2-3 In order to quickly pull and repair the trenchless pipeline, the traction mechanism 2 in this embodiment includes a plug-in ring 201 plugged into the inner circumferential wall of the outer tube 1, and a limiting ring 202 is fixed on the upper surface of the plug-in ring 201. After the repair liner tube 301 is reduced by the tightening belt 302, it is pulled out of the outer tube 1 through the traction equipment. At the same time, before traction, the plug-in ring 201 can be inserted into the outer tube 1 and fixed by the limiting ring 202. Two fixing frames 203 are fixed on the front and rear sides of the upper surface of the limiting ring 202, and fixing plates 204 are fixed on the opposite sides of the front and rear fixing frames 203. Rotating holes 205 are opened on the opposite sides of the left and right fixing plates 204. The inner circumferential walls of the left and right rotating holes 205 are rotatably connected with rotating shafts 206, and rotating rollers 207 are fixed on the outer surface of the rotating shaft 206. When the repair liner tube 301 is pulled, it can be rotated and pulled between the two rotating rollers 207.

[0034] In this embodiment, the inner diameter of the limit ring 202 is equal to the inner diameter of the plug-in ring 201, and the outer diameter of the limit ring 202 is larger than the inner diameter of the outer tube 1. The fixing frame 203 is an L-shaped plate. A protective sleeve is fixed to the outer surface of the rotating roller 207. Threaded columns 208 are fixed to the left and right ends of the rotating shaft 206, and the outer surface of the threaded column 208 is threadedly connected to the limit nut 209. The width of the fixing frame 203 is smaller than the width of the limit ring 202. The fixing plate 204 is fixed to the middle of the opposite side of the fixing frames 203 on the front and rear sides, and the height of the fixing plate 204 is smaller than the height of the fixing frame 203. The rotating roller 207 can rotate together with the repair liner tube 301 when it moves to reduce the fitting friction between the repair liner tube 301 and the inner wall of the outer tube 1, thereby reducing frictional resistance and facilitating pipeline repair. After the repair liner tube 301 is pulled into place, the plug-in ring 201 can be pulled out.

[0035] See also Figure 4 In order to reduce friction and traction of the bundled inner tube, the bundling component 3 in this embodiment includes a plurality of repair liner tubes 301 slidably connected to the opposite side of the rotating rollers 207 on the front and rear sides. The repair liner tube 301 is equidistantly wound with the bundling belt 302 into the interior of the plurality of repair liner tubes 301 through a special deformation device to temporarily reduce the volume of the repair liner tube 301 to about one third. The outer surfaces of the plurality of repair liner tubes 301 are wrapped with the bundling belt 302 to temporarily reduce the volume of the repair liner tube 301 to about one third, and then the reduced volume liner pipe is pulled into the online pipe through a traction device.

[0036] In this embodiment, the number of the tightening bands 302 is not less than two, and they are evenly distributed on the outer surface of the repair liner pipe 301. After the pipeline is completely pulled into place, the tightening bands 302 are cut open using a cutting tool, so that several repair liner pipes 301 are enlarged and fit the inner wall of the outer pipe 1, thereby achieving the purpose of repair.

[0037] The working principle of the above embodiment is:

[0038] (1) When the trenchless pipeline is to be quickly towed and repaired, the repair liner pipe 301 is equidistantly wound with the shrinking band 302 through a dedicated deformation device into the interior of several repair liner pipes 301, so as to temporarily reduce the volume of the repair liner pipe 301 to about one third, and then the liner pipe with reduced volume is towed into the online pipeline through the towing equipment. After the pipeline is completely towed into place, the shrinking band 302 is cut open with a cutting tool, so that several repair liner pipes 301 are enlarged and fit the inner wall of the outer pipe 1, so as to achieve the purpose of repair.

[0039] (2) When the inner tube is pulled for use to reduce friction after being gathered, the repaired liner tube 301 is reduced by the gathering belt 302 and then pulled out into the outer tube 1 by the pulling equipment. At the same time, the plug-in ring 201 can be inserted into the outer tube 1 and fixed by the limiting ring 202 before pulling. Then, the repaired liner tube 301 can be rotated and pulled between the two rotating rollers 207. The rotating rollers 207 can rotate together with the movement of the repaired liner tube 301 to reduce the friction between the repaired liner tube 301 and the inner wall of the outer tube 1, thereby reducing friction resistance and facilitating the use of pipeline repair. After the repaired liner tube 301 is pulled into place, the plug-in ring 201 can be pulled out.

Claims

1. A trenchless pipeline repair liner pipe, comprising an outer pipe (1), characterized in that: The inner peripheral wall of the outer tube (1) is provided with a traction mechanism (2) for reducing friction and traction of the pipeline, and a contraction component (3) is provided between opposite sides of the traction mechanism (2); The traction mechanism (2) comprises a plug-in ring (201) plugged into the inner circumferential wall of the outer tube (1); a limit ring (202) is fixed on the upper surface of the plug-in ring (201); two fixing frames (203) are fixed on the front and rear sides of the upper surface of the limit ring (202); fixing plates (204) are fixed on opposite sides of the fixing frames (203) on the front and rear sides; rotating holes (205) are provided on opposite sides of the fixing plates (204) on the left and right sides; inner circumferential walls of the rotating holes (205) on the left and right sides are rotatably connected to rotating shafts (206); rotating rollers (207) are fixed on the outer surfaces of the rotating shafts (206).

2. The trenchless pipeline repair liner according to claim 1, characterized in that: The inner diameter of the limiting ring (202) is equal to the inner diameter of the plug-in ring (201), and the outer diameter of the limiting ring (202) is greater than the inner diameter of the outer tube (1).

3. The trenchless pipeline repair liner according to claim 1, characterized in that: The fixing frame (203) is an L-shaped plate, and a protective sleeve is fixed on the outer surface of the rotating roller (207).

4. The trenchless pipeline repair liner according to claim 1, characterized in that: Threaded columns (208) are fixed to both left and right ends of the rotating shaft (206), and the outer surface of the threaded column (208) is threadedly connected to a limiting nut (209).

5. The trenchless pipeline repair liner according to claim 1, characterized in that: The tightening assembly (3) comprises a plurality of repair liner tubes (301) slidably connected to opposite sides of the rotating rollers (207) at the front and rear sides, and the outer surfaces of the plurality of repair liner tubes (301) are wrapped with tightening belts (302).

6. The trenchless pipeline repair liner according to claim 5, characterized in that: The number of the tightening bands (302) is no less than two, and they are equidistantly distributed on the outer surface of the repaired liner pipe (301).

7. The trenchless pipeline repair liner according to claim 1, characterized in that: The width of the fixing frame (203) is smaller than the width of the limiting ring (202).

8. The trenchless pipeline repair liner according to claim 1, characterized in that: The fixing plate (204) is fixed to the middle of the opposite side of the fixing frame (203) at the front and rear sides, and the height of the fixing plate (204) is smaller than the height of the fixing frame (203).

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