A flexible composite pipe damage deformation recovery device and repair method

Abstract

The application discloses a flexible composite pipeline damage deformation recovery device and a repairing method, relates to the technical field of pipeline repairing, and comprises a base pipe, a polygonal ring is sleeved and installed on the outer side wall of the middle part of the base pipe, first outer threads are formed on the outer side wall of the base pipe and close to the two sides of the polygonal ring, pressing rings are screw-connected and installed on the two first outer threads, a slope is arranged on the outer side wall of the base pipe and close to the positions of the two ends, a slope is correspondingly arranged on the inner side wall of the pressing ring, and the slope is matched with the corresponding slope. In the application, the elastic rods support the inner wall of the pipe in the flexible pipe body and are bent and deformed, the multiple elastic rods are deformed simultaneously under the limitation of the supporting ring and form a bent pipeline and support the inner wall of the flexible pipe body, so that the flexible pipe body at the connecting position forms an arc transition, the flexible pipe body is prevented from being bent, and the normal smoothness of the pipeline is ensured.

Description

Technical Field

[0001] This invention relates to the field of pipeline repair technology, and in particular to a flexible composite pipeline damage and deformation recovery device and repair method. Background Technology

[0002] Flexible composite pipes are industrial pipe fittings made of high-molecular composite materials. They possess excellent properties such as high strength, high pressure resistance, corrosion resistance, low friction coefficient, good thermal insulation, good flexibility, and long service life. Flexible composite pipes have good flexibility and long single-section length, and are not limited by terrain or topography during actual laying. They are quick and convenient to construct, and therefore have a wide range of applications. They are mainly used in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering, and various industrial installations.

[0003] In existing technologies, some flexible composite pipes have their inner walls close together and flattened when there is no gas or liquid flow inside. When gas or liquid flows, the pipe returns to its normal circular shape. However, in areas where the pipe's extension direction changes significantly, the pipe is set in an arc transition. When gas or liquid suddenly flows inside the pipe, the impact force of the liquid or gas will change the pipe's position, causing the pipe to be arranged in a straight line. This results in bending and deformation of the pipe at the point where the extension direction changes, reducing the pipe's cross-sectional area. In severe cases, the pipe surface may even be damaged by impact with surrounding hard objects. During repair, the damaged part of the pipe is usually cut off and then connected with a rigid pipe. However, bending will still occur later, which is inconvenient. Therefore, we disclose a flexible composite pipe damage deformation restoration device and repair method to meet people's needs. Summary of the Invention

[0004] The purpose of this application is to provide a flexible composite pipe damage and deformation recovery device and repair method to solve the problems mentioned in the background art, where the impact force of liquid or gas can change the position of the pipe, making the pipe straight, and causing the pipe to bend at the position where the extension direction changes, resulting in a reduction in the cross-sectional area of ​​the pipe. In severe cases, the pipe surface may be damaged by impact with surrounding hard objects. During repair, the damaged part of the pipe is generally cut off and then a rigid pipe is used for connection, but bending will still occur later, which is inconvenient.

[0005] To achieve the above objectives, this application provides the following technical solution: a flexible composite pipe damage and deformation recovery device, comprising a base pipe, a polygonal ring sleeved on the outer wall of the middle part of the base pipe, a first external thread on both sides of the outer wall of the base pipe near the polygonal ring, a clamping ring screwed onto each of the two first external threads, a ramp on the outer wall of the base pipe near both ends, a corresponding inclined surface on the inner wall of the clamping ring, the inclined surface matching the corresponding ramp, and multiple elastic rods evenly installed at both ends of the base pipe through quick-connect units, with a support unit installed at one end of each of the multiple elastic rods.

[0006] Preferably, the quick-connect unit includes a first stepped hole, which is evenly opened at both ends of the base tube. A first internal thread is opened on the inner sidewall of the hole with the smaller inner diameter of the first stepped hole. A second external thread is opened at one end of the elastic rod, and the second external thread is screwed and matched with the corresponding first internal thread.

[0007] Preferably, the outer wall of the elastic rod matches the inner wall of the hole with the larger inner diameter corresponding to the first stepped hole and is provided with a gap.

[0008] Preferably, the support unit includes a support ring with multiple sliding holes, the elastic rod slidingly matching the corresponding sliding holes, and limiting units installed on both sides of the support ring.

[0009] Preferably, the limiting unit includes a limiting ring, which is sleeved on the end of the elastic rod away from the base tube. A limiting sleeve is installed on one end of the elastic rod. One side of the supporting ring matches one end of the limiting ring, and the other side matches one end of the limiting sleeve.

[0010] Preferably, a third external thread is provided on the outer wall of the elastic rod away from the base tube, a second stepped hole is provided at one end of the limiting sleeve, a second internal thread is provided in the second stepped hole, the third external thread is screwed and matched with the second internal thread, one end of the second stepped hole is an upper section hole, the inner side wall of the upper section hole matches the outer side wall of the corresponding elastic rod and is provided with a gap.

[0011] Preferably, the end of the limiting sleeve that is away from the supporting ring is rounded.

[0012] Preferably, multiple raised ribs are evenly installed on the outer side wall of the clamping ring.

[0013] Preferably, a rubber layer is installed on the slope of the base pipe.

[0014] Preferably, a repair method for a flexible composite pipe damage and deformation recovery device includes:

[0015] S1. When in use, cut off the damaged and deformed part of the flexible tube body, insert the elastic rod and the clamping ring at both ends into the corresponding flexible tube body, and make the two cut ends fit on both ends of the base tube respectively, and make the cut ends abut against one end of the first external thread.

[0016] S2. Fix the base tube by clamping the polygonal ring with a tool, and at the same time rotate the corresponding clamping ring along the corresponding first external thread so that the inclined surface on the clamping ring approaches the slope and clamps the flexible tube body, and connects the two ends of the cut flexible tube body.

[0017] S3. In use, when the flexible tube body is to bend, the elastic rod supports the inner wall of the flexible tube body from the inside and undergoes bending deformation. Multiple elastic rods deform simultaneously under the restriction of the supporting ring to form a curved pipe and support the inner wall of the flexible tube body, thereby forming an arc transition at the connection of the flexible tube body, preventing the flexible tube body from bending and ensuring the normal smooth flow of the pipe.

[0018] In summary, the technical effects and advantages of this invention are as follows:

[0019] 1. In this invention, the damaged and deformed part of the flexible tube body is cut off, and the elastic rods and clamping rings at both ends are inserted into the corresponding flexible tube bodies. The two cut ends are respectively fitted onto the two ends of the base tube, and the flexible tube body is clamped by the clamping rings. The two ends of the cut flexible tube body are connected. When the flexible tube body is about to bend, the elastic rods support the inner wall of the tube body from the inside of the flexible tube body and bend and deform. Multiple elastic rods deform simultaneously under the restriction of the supporting rings to form a curved pipe and support the inner wall of the flexible tube body. This makes the flexible tube body at the connection point form an arc transition, preventing the flexible tube body from bending and ensuring the normal flow of the pipe.

[0020] 2. In this invention, the elastic rod can be disassembled and replaced by setting the first stepped hole. The elastic rod can be set with various specifications according to its length, so as to match and rotate according to the flexible tube body with different hardness, so that the flexible tube body has different bending transition lengths. At the same time, the elastic rod matches the inner wall of the hole with a larger inner diameter of the first stepped hole, so that the area where the elastic rod is deformed avoids the second external thread, preventing the second external thread from deforming and causing jamming and making it difficult to disassemble.

[0021] 3. In this invention, by setting up a supporting ring, the sliding hole is a through hole. As the elastic rod bends and deforms, the supporting ring moves to a certain extent through the sliding hole, and one end of multiple elastic rods can be kept in a cylindrical structure to keep the flexible tube body unobstructed. By setting the round head, the end of the elastic rod can be prevented from piercing the inner wall of the flexible tube body, thus playing a certain protective role. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a partial cross-sectional view of the clamping ring in the pressing state in this invention;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the base tube end in this invention;

[0026] Figure 4 This is a schematic diagram of a partial cross-sectional view of the second external thread region in this invention;

[0027] Figure 5 This is a schematic diagram of a partial cross-sectional view of the third external thread region in this invention;

[0028] Figure 6 This is a schematic diagram of the three-dimensional structure in the bent state of the present invention.

[0029] In the diagram: 1. Base tube; 2. Polygonal ring; 3. Elastic rod; 4. Support ring; 5. Limiting sleeve; 6. Compression ring; 7. Rib; 8. First external thread; 9. Slope; 10. Flexible tube body; 11. First stepped hole; 12. Second external thread; 13. Limiting ring; 14. Third external thread; 15. Sliding hole; 16. Second stepped hole; 17. Upper section hole; 18. Round head; 19. Rubber layer. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example: Reference Figure 1-6 The device for restoring the damaged and deformed flexible composite pipe shown includes a base pipe 1. A polygonal ring 2 is sleeved on the outer wall of the middle part of the base pipe 1. First external threads 8 are provided on both sides of the outer wall of the base pipe 1 near the polygonal ring 2. A clamping ring 6 is screwed onto each of the two first external threads 8. A ramp 9 is provided on the outer wall of the base pipe 1 near both ends. A corresponding ramp is provided on the inner wall of the clamping ring 6, and the ramp matches the corresponding ramp 9. Multiple elastic rods 3 are evenly installed on both ends of the base pipe 1 through quick-connect units. A support unit is installed on one end of each elastic rod 3.

[0032] Based on the above structure, the damaged and deformed part of the flexible tube body 10 is cut off, and the elastic rods 3 and clamping rings 6 located at both ends are inserted into the corresponding flexible tube bodies 10. The two cut ends are respectively fitted onto the two ends of the base tube 1, and the cut ends abut against one end of the corresponding first external thread 8. The base tube 1 is fixed by clamping the polygonal ring 2 with a tool. At the same time, the corresponding clamping ring 6 is rotated along the corresponding first external thread 8, so that the inclined surface on the clamping ring 6 approaches the slope 9 and clamps the flexible tube body 10, connecting the two ends of the cut flexible tube body 10. In use, when the flexible tube body 10 is to bend, the elastic rods 3 support the inner wall of the tube from the inside of the flexible tube body 10 and bend and deform. Multiple elastic rods 3 deform simultaneously under the constraint of the support unit to form a curved pipe and support the inner wall of the flexible tube body 10, so that the flexible tube body 10 at the connection point forms an arc transition, preventing the flexible tube body 10 from bending and ensuring the normal flow of the pipe.

[0033] like Figure 1 and 4 As shown, the quick-connect unit includes a first stepped hole 11, which is evenly opened at both ends of the base tube 1. The inner wall of the first stepped hole 11 with a smaller inner diameter is provided with a first internal thread. One end of the elastic rod 3 is provided with a second external thread 12, which is screwed and matched with the corresponding first internal thread. Through the setting of the first stepped hole 11, the elastic rod 3 can be disassembled and replaced. The elastic rod 3 can be set with various specifications according to its length, so as to match and rotate according to the flexible tube body 10 with different hardness, thereby making the flexible tube body 10 have different bending transition lengths.

[0034] like Figure 4 As shown, the outer wall of the elastic rod 3 matches the inner wall of the hole with a larger inner diameter corresponding to the first stepped hole 11 and is provided with a gap. The advantage of this setting is that the area where the elastic rod 3 deforms avoids the second external thread 12, preventing the second external thread 12 from deforming and causing jamming and making it difficult to disassemble.

[0035] like Figure 1 and 5As shown, the support unit includes a support ring 4, which has multiple sliding holes 15. The elastic rods 3 slide and match the corresponding sliding holes 15. Limiting units are installed on both sides of the support ring 4. By setting the support ring 4, the sliding holes 15 are through holes. As the elastic rods 3 bend and deform, the support ring 4 moves to a certain extent through the sliding holes 15, and can keep one end of the multiple elastic rods 3 in a cylindrical structure, keeping the flexible tube body 10 unobstructed.

[0036] like Figure 5 As shown, the limiting unit includes a limiting ring 13, which is sleeved on the end of the elastic rod 3 away from the base tube 1. A limiting sleeve 5 is installed on one end of the elastic rod 3. One side of the supporting ring 4 matches one end of the corresponding limiting ring 13, and the other side matches one end of the limiting sleeve 5. By setting the limiting ring 13 and the limiting sleeve 5, the supporting ring 4 can be positioned on one side of the end of the elastic rod 3.

[0037] like Figure 5 As shown, a third external thread 14 is provided on the outer wall of the elastic rod 3 at the end away from the base tube 1. A second stepped hole 16 is provided at one end of the limiting sleeve 5. A second internal thread is provided in the second stepped hole 16. The third external thread 14 is screwed and matched with the second internal thread. One end of the second stepped hole 16 is an upper section hole 17. The inner side wall of the upper section hole 17 matches the outer side wall of the corresponding elastic rod 3 and has a gap. By rotating the limiting sleeve 5, one end of the limiting sleeve 5 moves closer to or further away from the limiting ring 13, thereby adjusting the gap between the limiting ring 13 and one end of the limiting sleeve 5. The range of movement of the supporting ring 4 can be adjusted, thereby limiting the bending degree of the elastic rod 3.

[0038] like Figure 5 As shown, the end of the limiting sleeve 5 away from the supporting ring 4 is a round head 18. The round head 18 can prevent the end of the elastic rod 3 from puncturing the inner wall of the flexible tube body 10, thus providing a certain degree of protection.

[0039] like Figure 1 As shown, multiple ribs 7 are evenly installed on the outer side wall of the clamping ring 6. By setting multiple ribs 7, the surface roughness of the clamping ring 6 can be increased, making it easier to rotate the clamping ring 6.

[0040] like Figure 2 As shown, a rubber layer 19 is installed on the slope 9 of the base pipe 1. By setting the rubber layer 19, the flexible pipe body 10 and the slope 9 and the inclined surface on the compression ring 6 can be in closer contact, which helps to increase the sealing performance.

[0041] A repair method for a flexible composite pipe damage and deformation recovery device, the method comprising:

[0042] S1. When in use, cut off the damaged and deformed part of the flexible tube body 10, so that the elastic rod 3 and the clamping ring 6 located at both ends are inserted into the corresponding flexible tube body 10, and the two cut ends are respectively fitted onto the two ends of the base tube 1, and the cut ends abut against one end of the corresponding first external thread 8.

[0043] S2. Fix the base tube 1 by clamping the polygonal ring 2 with a tool, and at the same time rotate the corresponding clamping ring 6 along the corresponding first external thread 8 so that the inclined surface on the clamping ring 6 approaches the slope 9 and clamps the flexible tube body 10, and connects the two ends of the cut flexible tube body 10.

[0044] S3. During use, when the flexible tube body 10 is about to bend, the elastic rod 3 supports the inner wall of the flexible tube body 10 from the inside and undergoes bending deformation. Multiple elastic rods 3 deform simultaneously under the restriction of the supporting ring 4 to form a curved pipe and support the inner wall of the flexible tube body 10, thereby forming an arc transition at the connection of the flexible tube body 10, preventing the flexible tube body 10 from bending and ensuring the normal smooth flow of the pipe.

[0045] Working principle of this invention:

[0046] Cut off the damaged and deformed part of the flexible tube body 10, insert the elastic rods 3 and the clamping rings 6 at both ends into the corresponding flexible tube body 10, and fit the two cut ends onto the two ends of the base tube 1, with the cut ends abutting against one end of the corresponding first external thread 8. Fix the base tube 1 by clamping the polygonal ring 2 with a tool, and at the same time rotate the corresponding clamping ring 6 along the corresponding first external thread 8, so that the inclined surface on the clamping ring 6 approaches the slope 9 and clamps the flexible tube body 10, connecting the two ends of the cut flexible tube body 10. In use, when the flexible tube body 10 is to bend, the elastic rods 3 support the inner wall of the tube from the inside of the flexible tube body 10 and bend and deform. Multiple elastic rods 3 deform simultaneously under the restriction of the supporting ring 4 to form a curved pipe and support the inner wall of the flexible tube body 10, so that the flexible tube body 10 at the connection forms an arc transition, preventing the flexible tube body 10 from bending and ensuring the normal flow of the pipe.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flexible composite pipe damage and deformation recovery device, comprising a base pipe (1), characterized in that: A polygonal ring (2) is sleeved on the outer wall of the middle part of the base tube (1). A first external thread (8) is provided on both sides of the outer wall of the base tube (1) near the polygonal ring (2). A clamping ring (6) is screwed on each of the two first external threads (8). A ramp (9) is provided on the outer wall of the base tube (1) near both ends. A ramp is provided on the inner wall of the clamping ring (6). The ramp matches the ramp (9). Multiple elastic rods (3) are evenly installed on both ends of the base tube (1) through quick-connect units. A support unit is installed on one end of each of the multiple elastic rods (3). The support unit includes a support ring (4), which has multiple sliding holes (15). The elastic rod (3) slides and matches the corresponding sliding hole (15). Restriction units are installed on both sides of the support ring (4). The limiting unit includes a limiting ring (13), which is sleeved on the end of the elastic rod (3) away from the base tube (1). A limiting sleeve (5) is installed on one end of the elastic rod (3). One side of the supporting ring (4) matches one end of the limiting ring (13), and the other side matches one end of the limiting sleeve (5). A third external thread (14) is provided on the outer wall of the elastic rod (3) away from the base tube (1). A second stepped hole (16) is provided at one end of the limiting sleeve (5). A second internal thread is provided in the second stepped hole (16). The third external thread (14) is screwed and matched with the second internal thread. One end of the second stepped hole (16) is an upper section hole (17). The inner side wall of the upper section hole (17) matches the outer side wall of the corresponding elastic rod (3) and has a gap. The end of the limiting sleeve (5) away from the supporting ring (4) is a round head (18).

2. The flexible composite pipe damage and deformation recovery device according to claim 1, characterized in that: The quick-connect unit includes a first stepped hole (11), which is evenly opened at both ends of the base tube (1). The inner wall of the first stepped hole (11) with a smaller inner diameter is provided with a first internal thread. One end of the elastic rod (3) is provided with a second external thread (12), which is screwed and matched with the corresponding first internal thread.

3. The flexible composite pipe damage and deformation recovery device according to claim 2, characterized in that: The outer wall of the elastic rod (3) matches the inner wall of the hole with a larger inner diameter corresponding to the first stepped hole (11) and is provided with a gap.

4. The flexible composite pipe damage and deformation recovery device according to claim 1, characterized in that: Multiple ribs (7) are evenly installed on the outer wall of the clamping ring (6).

5. The flexible composite pipe damage and deformation recovery device according to claim 1, characterized in that: A rubber layer (19) is installed on the slope (9) on the base pipe (1).

6. A repair method for a flexible composite pipeline damage and deformation restoration device according to any one of claims 1-5, characterized in that, The method includes: S1. When in use, cut off the damaged and deformed part of the flexible tube body (10), so that the elastic rod (3) and the clamping ring (6) located at both ends are inserted into the corresponding flexible tube body (10), and the two cut ends are respectively fitted onto the two ends of the base tube (1), and the cut ends abut against one end of the corresponding first external thread (8). S2. Fix the base tube (1) by clamping the polygonal ring (2) with a tool, and at the same time rotate the corresponding clamping ring (6) along the corresponding first external thread (8) so that the inclined surface on the clamping ring (6) approaches the slope (9) and clamps the flexible tube body (10), and connects the two ends of the cut flexible tube body (10). S3. When the flexible tube body (10) is to bend during use, the elastic rod (3) supports the inner wall of the flexible tube body (10) and undergoes bending deformation. Multiple elastic rods (3) simultaneously deform under the restriction of the supporting ring (4) to form a curved pipe and support the inner wall of the flexible tube body (10), thereby forming an arc transition at the connection of the flexible tube body (10), preventing the flexible tube body (10) from bending and ensuring the normal smooth flow of the pipe.

Images