Protective device for preventing stress from tearing coil pipe

Abstract

The invention relates to the technical field of coil pipes, in particular to a protective device for preventing stress from tearing a coil pipe, which comprises a coil pipe body, first connecting ends are mounted at two ends of the coil pipe body, telescopic joints are mounted at one ends of the two first connecting ends through a plurality of first bolts, and connectors are arranged at one ends of the two telescopic joints. And connecting mechanisms are arranged in the two connectors correspondingly, fixing sleeves are arranged at the two ends of the coil pipe body correspondingly, protection mechanisms are arranged in the two fixing sleeves correspondingly, each protection mechanism comprises two movable sleeves, and the two movable sleeves are limited and fixed through limiting mechanisms correspondingly. According to the coiled pipe, the telescopic joints are additionally arranged at the two ends of the coiled pipe body, and corrugated pipes of the telescopic joints can absorb vibration energy through self compression and bending in the using process of the coiled pipe body, for example, the two ends of the coiled pipe body are vibrated, so that the influence of vibration on the coiled pipe body is reduced, and the protection effect on the coiled pipe body is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coiled pipes, and in particular to a protective device for preventing stress-tear coiled pipes. Background Art

[0002] "Snake hose" is a popular name for both formable and non-formable metal hoses. Due to its snake-like appearance and shape, it's often referred to as "snake hose." Its primary use is to protect electrical circuits from being chewed by rats and corroded by chemicals like acids and alkalis. It also protects cables and pipes from bending, heat insulation, and chemical corrosion, effectively shielding electromagnetic waves. Applications include: lamp hoses, line protection hoses, and fiber optic protection hoses. Common metal materials used for hoses include stainless steel, galvanized steel strip, and iron wire. Surface treatments include electropolishing, chrome plating, and nickel plating.

[0003] During use, conventional coils are subject to primary stresses caused by internal pressure, deadweight, and other external loads, as well as secondary stresses caused by thermal expansion, contraction, and constrained displacement. These pipe stresses can cause numerous adverse effects during use, such as deformation, leakage, and even damage. However, conventional coils lack any protective mechanisms, resulting in continuous adverse effects from these stresses during use, significantly reducing the coil's service life. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to provide a protective device for preventing stress-tear of a coiled pipe.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A protective device for preventing stress-tear of a coiled tube, comprising a coiled tube body, wherein both ends of the coiled tube body are equipped with a first connecting end, and the ends of the two first connecting ends away from the coiled tube body are each equipped with an expansion joint through a plurality of first bolt threads, and the ends of the two expansion joints away from the connecting ends are each provided with a connecting head, and the interiors of the two connecting heads are each provided with a connecting mechanism for quickly installing and fixing with other equipment, and the outer walls of both ends of the coiled tube body are each provided with a fixing sleeve, and the interiors of the two fixing sleeves are each provided with a protective mechanism for shielding and protecting the expansion joint and the connecting mechanism, and the protective mechanism includes a movable sleeve arranged on the top of the two fixing sleeves, and the two movable sleeves are each limited and fixed by a limiting mechanism arranged inside.

[0007] Optionally, the two connectors are both installed with a second connecting end at one end close to the coil body, and the two telescopic joints are both threadedly connected to the second connecting end close to the two connectors via a plurality of second bolts.

[0008] Optionally, the connecting mechanism includes two fixed blocks installed on the outer wall of the connecting head, a drive shaft is installed between the two fixed blocks for common rotation, screw rods are installed at both ends of the drive shaft, and movable blocks are threadedly installed on the outer walls of the two screw rods.

[0009] Optionally, a rubber sleeve is installed on the inner wall of the connector, and a gap is left between the rubber sleeve and the inner wall of the connector. Two plywood are installed inside the connector and in the gap, and the outer walls of the two plywood on the side away from each other are connected to the corresponding moving blocks through round rods.

[0010] Optionally, two fixing plates are installed on the top of the two fixing sleeves, and the two fixing plates are threadedly connected to the first connecting ends adjacent to the two fixing plates through third bolts.

[0011] Optionally, circular grooves are provided inside the two fixed sleeves, and retractable protective curtains are installed inside the two circular grooves. The ends of the two protective curtains away from the circular grooves are connected to the movable sleeves close to them.

[0012] Optionally, the limiting mechanism includes two arc-shaped blocks, both of which are arranged inside the moving sleeve, and the outer walls of the two arc-shaped blocks on the sides away from each other are connected to the inner wall of the moving sleeve through two springs.

[0013] Optionally, a round tube is installed on the outer wall of the two arc blocks close to the spring, and a rotating block is installed on the end of the two round tubes away from the arc blocks through a screw, and a nut is threadedly installed on one end of the two screws, and a pull rod is installed on the end of the two rotating blocks away from the rotating part, and the diameter of the two pull rods is the same as the diameter of the round tube.

[0014] Optionally, the outer walls of the two circular tubes are provided with feeding ends, the ends of the two feeding ends away from the circular tubes are covered with rubber stoppers, and the interior of the movable sleeve is provided with through holes for the movement of the two circular tubes and the feeding ends.

[0015] Optionally, the outer walls of the two arc blocks adjacent to each other are each installed with multiple protrusions, the two arc blocks are both hollow, one end of the two round tubes extends into the interior of the corresponding arc blocks, the two arc blocks are each provided with a discharge port between the multiple protrusions, and the two arc blocks are each installed with a soft pad between the multiple protrusions.

[0016] The beneficial effects of the present invention are:

[0017] 1. In this invention, by adding expansion joints at both ends of the coiled tube body, when the coiled tube body is used, if both ends of the coiled tube body are subjected to vibration, the bellows of the expansion joint can absorb the vibration energy through its own compression and bending, thereby reducing the impact of the vibration on the coiled tube body and protecting the coiled tube body from damage caused by stress. This makes the coiled tube body have the effect of preventing stress tearing, thereby improving the protective effect of the coiled tube body.

[0018] 2. In this invention, when the coiled tube body needs to be installed between the mounting ends of two devices, the two connecting heads can be directly put on the mounting end surfaces of the two devices in turn, and the connecting mechanism provided inside the two connecting heads can be used to push the rubber sleeve to tightly contact the outer wall of the mounting end of the external device, ensuring that the connecting head and the mounting end of the external device are installed relatively tightly. There is no need to manually align the two ends of the coiled tube body with the mounting ends of the two devices, and the connection is made by rotating the two ends of the coiled tube body, thereby improving the installation efficiency of the coiled tube body.

[0019] 3. In this invention, when the two telescopic joints are installed and put into use, the two pull rods on the outside of one of the movable sleeves are pulled to drive the corresponding two arc blocks to move away from each other. Then the movable sleeve can be pulled upward to drive the protective curtain to unfold upward from the inside of the circular groove. After the movable sleeve moves to a suitable position flush with the connecting head, the pulling limit of the two pull rods can be manually loosened to make the two arc blocks abut and cooperate with the outer wall of the connecting head, thereby limiting and fixing the position of the movable sleeve after movement, and then limiting and fixing the unfolded protective curtain, so that the unfolded protective curtain can shield and protect multiple components such as the telescopic joint, the connecting head and the connecting mechanism, thereby preventing the telescopic joint, the connecting head and the connecting mechanism from being easily affected by external factors during use, which may lead to the problem of shortened service life.

[0020] 4. In this invention, if the staff finds that there are a lot of impurities attached to the surface of the coiled tube body during the inspection of the coiled tube body, they can pull the two pull rods outside one of the movable sleeves to move away from each other, so as to release the abutment limit state of the two arc blocks. At this time, the movable sleeve can be pulled downward to the bottom of the fixed sleeve, and the limit on the two pull rods can be manually loosened so that the two arc blocks abut against the outer wall of the coiled tube body. At this time, the movable sleeve is manually moved to drive the multiple protrusions provided on the outer wall of the two arc blocks close to each other to synchronously scrape the outer wall of the coiled tube body, so as to scrape and clean the impurities attached to the outer wall of the coiled tube body, avoiding the problem of manual use of other cleaning tools, which is inconvenient to clean the impurities on the outer wall of the coiled tube body, thereby reducing the adverse effects of impurities on the use of the coiled tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of a protective device for preventing stress-tear of a coiled pipe proposed by the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure of one end of the middle snake tube body;

[0024] Figure 3 A schematic structural diagram of one of the fixing sleeves being separated from the first connecting end in the present invention;

[0025] Figure 4 This is a structural diagram of the present invention in which one of the expansion joints, the coiled tube body and the connector are separated;

[0026] Figure 5 A cross-sectional view of the structure of one of the connectors in the present invention;

[0027] Figure 6 This is a structural diagram of the connection mechanism and the connector being separated in the present invention;

[0028] Figure 7 A cross-sectional view of the structure of one of the fixed sleeve and the movable sleeve in the present invention;

[0029] Figure 8 for Figure 7 Schematic diagram of the structure in which the fixed sleeve and the movable sleeve are separated;

[0030] Figure 9 Schematic diagram of the structure of the limiting mechanism of the present invention;

[0031] Figure 10 It is a schematic diagram of the structure in which multiple cushions are separated from the arc-shaped blocks in the present invention.

[0032] In the figure: 1. Coil body; 2. Connector; 3. Expansion joint; 4. Fixed sleeve; 5. Moving sleeve; 6. First connecting end; 7. Fixed plate; 8. Third bolt; 9. Second connecting end; 10. Rubber sleeve; 11. Clamp; 12. Moving block; 13. Fixed block; 14. Drive shaft; 15. Screw; 16. Protective curtain; 17. Arc block; 18. Spring; 19. Round tube; 20. Pull rod; 21. Through hole; 22. Rotating block; 23. Nut; 24. Feed end; 25. Rubber plug; 26. Cushion; 27. Raised part; 28. Discharge port; 29. ​​Round groove. DETAILED DESCRIPTION

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] Reference Figures 1-10 A protective device for preventing stress-tear of a coiled tube comprises a coiled tube body 1, with first connecting ends 6 installed at both ends of the coiled tube body 1, and expansion joints 3 are installed on the ends of the two first connecting ends 6 away from the coiled tube body 1 through multiple first bolt threads, and the ends of the two expansion joints 3 away from the connecting ends are provided with connectors 2, and the interiors of the two connectors 2 are provided with connection mechanisms for rapid installation and fixation with other equipment, and the outer walls of both ends of the coiled tube body 1 are provided with fixed sleeves 4, and the interiors of the two fixed sleeves 4 are provided with protective mechanisms for shielding and protecting the expansion joints 3 and the connection mechanisms, and the protective mechanisms include movable sleeves 5 arranged on the tops of the two fixed sleeves 4, and the two movable sleeves 5 are both limited and fixed by internal limiting mechanisms. In this embodiment, the coiled tube body 1 is a metal hose that can be bent and deformed according to usage requirements.

[0035] As a technical optimization solution of the present invention, the two connectors 2 are both installed with a second connecting end 9 at one end close to the coil body 1, and the two expansion joints 3 are both threadedly connected to the second connecting end 9 close to the two connectors 2 by a plurality of second bolts. The two expansion joints 3 are installed between the two connectors 2 and the two ends of the coil body 1, so that when the coil body 1 is in use, if the two ends of the coil body 1 are subjected to vibration, the bellows of the expansion joint 3 can absorb the vibration energy through its own compression and bending, thereby reducing the impact of the vibration on the coil body 1; in addition, the design of the expansion joint 3 also includes a tightening nut and an elastic sealing ring, which can ensure that the coil body 1 can freely expand and contract in the middle of the joint when the temperature changes, further reducing the pipeline vibration caused by temperature changes; this design can not only effectively absorb vibration, but also ensure that the coil body 1 can freely expand and contract when the temperature changes, thereby protecting the coil body 1 from damage caused by stress.

[0036] As a technical optimization solution of the present invention, the connection mechanism includes two fixed blocks 13 mounted on the outer wall of the connector 2. A drive shaft 14 is mounted between the two fixed blocks 13 for common rotation. A screw rod 15 is mounted at each end of the drive shaft 14. The outer walls of the two screw rods 15 are threadedly mounted with a movable block 12. The drive shaft 14 is manually driven to rotate, thereby driving the two screw rods 15 to rotate synchronously. Since the threads on the surfaces of the two screw rods 15 are in opposite directions, the two screw rods 15 can drive the two movable blocks 12 to move toward or away from each other during the synchronous rotation.

[0037] As a technical optimization solution of the present invention, a rubber sleeve 10 is installed on the inner wall of the connector 2, with a gap left between the rubber sleeve 10 and the inner wall of the connector 2. Two clamping plates 11 are installed inside the connector 2 and located in the gap. The outer walls of the two clamping plates 11 on the side away from each other are connected to corresponding moving blocks 12 via round rods. As the two moving blocks 12 move, they can simultaneously drive the two clamping plates 11 to move inside the connector 2. When the two clamping plates 11 move toward each other, they can push the rubber sleeve 10 to tightly abut the outer wall of the external device mounting end, ensuring that the connector 2 is installed relatively tightly with the external device mounting end.

[0038] As a technical optimization solution of the present invention, two fixing plates 7 are mounted on the tops of the two fixing sleeves 4. Both fixing plates 7 are threadedly connected to the adjacent first connecting ends 6 via third bolts 8. The fixing sleeves 4 are threadedly connected to the first connecting ends 6 via the two third bolts 8, facilitating the removal and installation of multiple components, such as the fixing sleeves 4, from the surface of the coiled tube body 1, as well as the installation of additional components, such as fixing sleeves 4, on the surfaces of other coiled tube bodies 1.

[0039] As a technical optimization solution of the present invention, circular grooves 29 are formed in the interiors of the two fixed sleeves 4. Retractable protective curtains 16 are installed in the interiors of the two circular grooves 29. The ends of the two protective curtains 16, away from the circular grooves 29, are connected to the movable sleeve 5 adjacent to them. Pulling the movable sleeve 5 upward simultaneously drives the protective curtains 16, which are retracted and placed in the circular grooves 29, to expand upward and fit over the surfaces of the corresponding telescopic joints 3 and connectors 2, providing protection for the telescopic joints 3 and connectors 2.

[0040] As a technical optimization solution of the present invention, the limiting mechanism includes two arc blocks 17, both of which are arranged inside the movable sleeve 5, and the outer walls of the two arc blocks 17 on the side away from each other are connected to the inner wall of the movable sleeve 5 through two springs 18.

[0041] As a technical optimization solution of the present invention, a round tube 19 is installed on the outer wall of the two arc blocks 17 on the side close to the spring 18. The ends of the two round tubes 19 away from the arc blocks 17 are both installed with rotating blocks 22 through screw rotation. One end of each screw is threadedly installed with a nut 23. The ends of the two rotating blocks 22 away from the rotating part are both installed with a pull rod 20. The diameter of the two pull rods 20 is the same as that of the round tube 19. By pulling the two pull rods 20, the two arc blocks 17 are driven to move in the direction of separation, and the spring 18 on the side of the two arc blocks 17 away from each other is squeezed into a compressed state, which facilitates the upward and downward movement of the movable sleeve 5. When the pull limit of the two pull rods 20 is released, the elastic reset of the spring 18 drives the two arc blocks 17 to move and reset in the direction of approaching each other, so that the two arc blocks 17 abut and cooperate with the outer wall of the connector 2, thereby limiting and fixing the position of the movable sleeve 5 after movement, and further limiting and fixing the deployed protective curtain 16.

[0042] As a technical optimization solution of the present invention, the outer walls of the two circular tubes 19 are each provided with a feed end 24, and the ends of the two feed ends 24 away from the circular tubes 19 are covered with a rubber stopper 25. The interior of the movable sleeve 5 is provided with a through hole 21 for the movement of the two circular tubes 19 and the feed end 24. The two through holes 21 facilitate the back and forth movement of the two tie rods 20 and the circular tubes 19 within the movable sleeve 5, preventing the feed end 24 from obstructing the movement of the circular tubes 19.

[0043] As a technical optimization solution of the present invention, a plurality of protrusions 27 are installed on the outer wall of the adjacent side of the two arc blocks 17. Both arc blocks 17 are hollow, and one end of the two circular tubes 19 extends into the interior of the corresponding arc block 17. Both arc blocks 17 are provided with discharge ports 28 between the plurality of protrusions 27, and both arc blocks 17 are provided with soft pads 26 between the plurality of protrusions 27. By removing the rubber stopper 25, a container containing the protective coating can be connected to the feed end 24, so that the protective coating can enter the interior of the arc block 17 and be discharged outwardly to the outer wall of the coil body 1 through the plurality of discharge ports 28. As the movable sleeve 5 is manually driven to move on the surface of the coil body 1, the protective coating can be evenly applied to the outer wall of the coil body 1, thereby improving the efficiency and uniformity of the application of the protective coating to the surface of the coil body 1.

[0044] In the present invention, when the user uses the device, the first connecting ends 6 set at both ends of the coil body 1 are first threadedly connected to the expansion joint 3 through multiple first bolts, and then the ends of the two expansion joints 3 away from the first connecting ends 6 are threadedly connected to the connecting head 2 through multiple second bolts, so that the two connecting heads 2 can now replace the original first connecting ends 6 of the coil body 1 as the connecting part.

[0045] When the coiled tube body 1 needs to be installed between the mounting ends of two devices for use, the two connecting heads 2 can be directly sleeved on the mounting end surfaces of the two devices in turn, and the driving shaft 14 can be manually driven to rotate, thereby driving the two screw rods 15 to rotate synchronously, driving the two moving blocks 12 to move in the direction of approaching or moving away from each other. While the two moving blocks 12 are moving, they can synchronously drive the two clamping plates 11 to move inside the connecting head 2. When the two clamping plates 11 move in the direction of approaching, they can push the rubber sleeve 10 to tightly abut the outer wall of the mounting end of the external device, ensuring that the connecting head 2 and the mounting end of the external device are installed more tightly. There is no need to manually align the two ends of the coiled tube body 1 with the mounting ends of the two devices, and then connect them by rotating the two ends of the coiled tube body 1, thereby improving the installation efficiency of the coiled tube body 1;

[0046] And when the coiled tube body 1 needs to be disassembled later, the driving shaft 14 can be manually driven to reverse, driving the two moving blocks 12 to move away from each other, and then driving the two clamping plates 11 to move away from each other inside the connecting head 2, so that the rubber sleeve 10 is more loosely abutted against the mounting end of the device, making it convenient to directly remove the connecting head 2 from the mounting end of the device, and then quickly disassemble the coiled tube body 1, thereby improving the disassembly efficiency of the coiled tube body 1.

[0047] At the same time, since the two connecting heads 2 are threadedly connected to the expansion joint 3 through multiple second bolts, if the diameter of the equipment installation end of the coiled tube body 1 is smaller or larger, the connecting head 2 can be quickly disassembled and replaced with other connecting heads 2 of appropriate size to ensure that the coiled tube body 1 can be installed between two equipment installation ends of different diameters, thereby improving the applicability of the coiled tube body 1.

[0048] During the use of the coiled tube body 1, if the two ends of the coiled tube body 1 are subjected to vibration, the bellows of the expansion joint 3 can absorb the vibration energy through its own compression and bending, thereby reducing the impact of the vibration on the coiled tube body 1; in addition, the design of the expansion joint 3 also includes a tightening nut and an elastic sealing ring. These components can ensure that the coiled tube body 1 can freely expand and contract in the middle of the joint when the temperature changes, further reducing the pipeline vibration caused by temperature changes; this design can not only effectively absorb vibration, but also ensure that the coiled tube body 1 can freely expand and contract when the temperature changes, thereby protecting the coiled tube body 1 from damage caused by stress, so that the coiled tube body 1 has the effect of preventing stress tearing, and improves the protection effect of the coiled tube body 1.

[0049] After the two telescopic joints 3 are installed and put into use, in order to ensure that the two telescopic joints 3 can have a long service life along with the coiled tube body 1, the two pull rods 20 outside one of the movable sleeves 5 can be pulled to drive the corresponding two arc blocks 17 to move in opposite directions and squeeze the multiple springs 18. Then, the movable sleeve 5 can be pulled upward to drive the protective curtain 16 to unfold upward from the inside of the circular groove 29 until the movable sleeve 5 moves to a suitable position flush with the connecting head 2. The pulling limit of the two pull rods 20 can be manually released, and the elastic reset of the spring 18 can be used to drive the two arc blocks 17 to move and reset in the direction of approaching, so that the two arc blocks 17 abut and cooperate with the outer wall of the connecting head 2, limit and fix the position of the movable sleeve 5 after movement, and then limit and fix the unfolded protective curtain 16, so that the unfolded protective curtain 16 can shield and protect multiple components such as the telescopic joint 3, the connecting head 2 and the connecting mechanism, so as to avoid the telescopic joint 3, the connecting head 2 and the connecting mechanism being easily affected by external factors during use, which leads to the problem of shortening their service life.

[0050] During the use of the coiled tube body 1, the staff will inspect it on time to ensure that the coiled tube body 1 is in good use condition. If the staff finds that there are more impurities attached to the surface of the coiled tube body 1 during the inspection of the coiled tube body 1, they can pull the two pull rods 20 outside one of the movable sleeves 5 to move away from each other, driving the two arc blocks 17 to release the abutment limit state with the outer wall of the connector 2. At this time, the movable sleeve 5 can be pulled downward to drive the upward stretched protective curtain 16 to move downward together until the movable sleeve 5 moves downward to the bottom of the fixed sleeve 4. Then, the limit of the two pull rods 20 is manually released, so that the two arc blocks 17 move toward the direction of approaching and reset. , driving the outer wall of the side where the two arc blocks 17 are close to each other to abut against the outer wall of the coiled tube body 1. Since the outer walls of the side where the two arc blocks 17 are close to each other are semicircular and fit with the outer wall of the coiled tube body 1, as the two arc blocks 17 abut against the outer wall of the coiled tube body 1, the movable sleeve 5 is manually toggled to drive the multiple protrusions 27 set on the outer wall of the side where the two arc blocks 17 are close to each other to scrape the outer wall of the coiled tube body 1 synchronously, so as to scrape and clean the impurities attached to the outer wall of the coiled tube body 1, avoiding the problem of manual use of other cleaning tools, which is inconvenient to clean the impurities on the outer wall of the coiled tube body 1, thereby reducing the adverse effects of impurities on the use of the coiled tube body 1.

[0051] If the staff finds that the protective coating on the surface of the coiled tube body 1 is damaged or aged during the inspection of the coiled tube body 1, and needs to re-apply the protective coating on the surface of the coiled tube body 1, the above steps of cleaning the impurities attached to the surface of the coiled tube body 1 with the help of the two arc blocks 17 can be repeated first to scrape off the damaged or aged coating on the surface of the coiled tube body 1. Then, since the two round tubes 19 are rotatably mounted on the outer walls of the corresponding arc blocks 17, the two round tubes 19 can be rotated and adjusted on the outer walls of the corresponding arc blocks 17 so that the feed ends 24 of the outer walls of the two round tubes 19 are rotated to the top. Then, the rubber plugs 25 inside the two feed ends 24 can be removed and the rubber plugs 25 filled with the protective coating can be removed. The two container openings are connected to the two feed ends 24, or the two hoses for conveying the protective coating are connected to the two feed ends 24, so that the protective coating can enter the interior of the two arc blocks 17 and be discharged into the corresponding soft pads 26 through multiple discharge ports 28 set on the outer walls of the two arc blocks 17. As the movable sleeve 5 is manually moved, the two arc blocks 17 are driven to move synchronously on the surface of the coiled tube body 1, so that the protective coating can be evenly applied to the surface of the coiled tube body 1 after entering the soft pad 26, thereby facilitating the application of the protective coating on the surface of the coiled tube body 1, and the applied protective coating is relatively uniform and flat, thereby improving the maintenance efficiency of the coiled tube body 1.

[0052] After the two movable sleeves 5 are moved to the center position of the coiled tube body 1, the two movable sleeves 5 can be controlled to move together toward the center position of the coiled tube body 1 until the two movable sleeves 5 are moved to the contact state. At this time, the horizontal outer walls of the two movable sleeves 5 are installed with the two movable sleeves 5, so that the two movable sleeves 5 that have moved to the contact state can be magnetically fixed to each other, and the two protective curtains 16 are driven to unfold together on the surface of the coiled tube body 1. Since the diameter of the two protective curtains 16 after unfolding is much larger than that of the coiled tube body 1, the two protective curtains 16 will not contact the outer wall of the coiled tube body 1 when they are unfolded and used, thereby having a good shielding and protection effect on the coiled tube body 1 with the new protective coating on the surface, isolating it from external sunlight, providing a good environment for the shade drying of the protective coating, so that the protective coating can have a good protection effect during the subsequent use of the coiled tube body 1, further improving the service life of the coiled tube body 1.

[0053] At the same time, in order to ensure that the two arc blocks 17 inside the two movable sleeves 5 do not abut against the outer wall of the coiled tube body 1 and reduce the influence on the drying process of the protective coating, the two pull rods 20 outside the two movable sleeves 5 can be pulled in the direction of moving away from each other until the rotating block 22 connected to the two pull rods 20 and the round tube 19 is moved to the outside of the movable sleeve 5, and the nut 23 is loosened to allow the pull rod 20 to rotate downward until the pull rod 20 is rotated downward to a vertical state, and then the pull rod 20 after rotation adjustment is limited and fixed by tightening the nut 23. At this time, since the pull rod 20 is in a downward vertical state, the arc block 17 cannot be elastically reset by means of the spring 18, so that the arc block 17 is at a certain distance from the coiled tube body 1, thereby ensuring that the arc block 17 no longer abuts against the outer wall of the coiled tube body 1, so that the drying work of the protective coating applied on the surface of the coiled tube body 1 is not affected;

[0054] At this time, when the two arc blocks 17 are not in contact with the outer wall of the coil body 1, manual cleaning can be performed quickly on the outer wall of the side where the two arc blocks 17 are close to each other, which facilitates the subsequent use of multiple soft pads 26 and arc blocks 17.

[0055] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A protective device for preventing stress tearing of a coiled tube, comprising a coiled tube body (1), characterized in that: The two ends of the serpentine body (1) are both provided with first connection ends (6), the ends of the two first connection ends (6) away from the serpentine body (1) are both provided with telescopic joints (3) through a plurality of first bolt threads, the ends of the two telescopic joints (3) away from the connection ends are both provided with connecting heads (2), the interiors of the two connecting heads (2) are both provided with connecting mechanisms for quickly installing and fixing with other equipment, the outer walls of the two ends of the serpentine body (1) are both provided with fixing sleeves (4), the interiors of the two fixing sleeves (4) are both provided with protective mechanisms for shielding and protecting the telescopic joints (3) and the connection mechanisms, the protective mechanisms comprising movable sleeves (5) arranged on the tops of the two fixing sleeves (4), the two movable sleeves (5) are both limited and fixed by limiting mechanisms arranged inside.

2. A protective device for preventing stress tearing of a coiled pipe according to claim 1, characterized in that: The two connectors (2) are both provided with a second connection end (9) at one end close to the coil body (1), and the two expansion joints (3) are both threadedly connected to the second connection end (9) close to the two expansion joints (3) via a plurality of second bolts.

3. A protective device for preventing stress tearing of a coiled pipe according to claim 2, characterized in that: The connection mechanism comprises two fixed blocks (13) mounted on the outer wall of the connection head (2); a driving shaft (14) is mounted between the two fixed blocks (13) for co-rotation; screw rods (15) are mounted at both ends of the driving shaft (14); and moving blocks (12) are threadedly mounted on the outer walls of the two screw rods (15).

4. The protective device for preventing stress tearing of a coiled pipe according to claim 1, characterized in that: A rubber sleeve (10) is installed on the inner wall of the connecting head (2), a gap is left between the rubber sleeve (10) and the inner wall of the connecting head (2), two clamping plates (11) are installed inside the connecting head (2) and at the gap, and the outer walls of the two clamping plates (11) on the side away from each other are connected to the corresponding moving blocks (12) through round rods.

5. The protective device for preventing stress tearing of a coiled pipe according to claim 1, characterized in that: Two fixing plates (7) are installed on the top of the two fixing sleeves (4), and the two fixing plates (7) are threadedly connected to the first connecting ends (6) adjacent to them through third bolts (8).

6. The protective device for preventing stress tearing of a coiled pipe according to claim 1, characterized in that: The two fixed sleeves (4) are each provided with a circular groove (29), and the two circular grooves (29) are each provided with a retractable protective curtain (16), and the ends of the two protective curtains (16) away from the circular grooves (29) are connected to the movable sleeve (5) adjacent thereto.

7. The protective device for preventing stress tearing of a coiled pipe according to claim 1, characterized in that: The limiting mechanism comprises two arc blocks (17), both of which are arranged inside the moving sleeve (5), and the outer walls of the two arc blocks (17) on the sides away from each other are connected to the inner wall of the moving sleeve (5) through two springs (18).

8. The protective device for preventing stress-tear of a coiled pipe according to claim 7, characterized in that: A round tube (19) is installed on the outer wall of one side of the two arc blocks (17) close to the spring (18); a rotating block (22) is installed on one end of the two round tubes (19) away from the arc blocks (17) through a screw, a nut (23) is threadedly installed on one end of the two screws, and a pull rod (20) is installed on the end of the two rotating blocks (22) away from the rotating part, and the diameter of the two pull rods (20) is the same as the diameter of the round tube (19).

9. A protective device for preventing stress-tear of a coiled pipe according to claim 8, characterized in that: The outer walls of the two circular tubes (19) are each provided with a feeding end (24), and the ends of the two feeding ends (24) away from the circular tubes (19) are each covered with a rubber stopper (25), and the interior of the movable sleeve (5) is provided with a through hole (21) for the two circular tubes (19) and the feeding end (24) to move.

10. A protective device for preventing stress-tear of a coiled pipe according to claim 9, characterized in that: The outer walls of the two arc blocks (17) on the side close to each other are both provided with a plurality of protrusions (27); the two arc blocks (17) are both hollow; one end of the two round tubes (19) extends into the corresponding arc blocks (17); the two arc blocks (17) are both provided with discharge ports (28) between the plurality of protrusions (27); and the two arc blocks (17) are both provided with soft pads (26) between the plurality of protrusions (27).

Images