A protection device for a submarine cable

Abstract

The utility model relates to the field of protection device, specifically is a kind of protection device for sea cable traction, including base, the upper end of the base is fixedly connected with support plate, the support plate is opened in and passes through the groove, the support plate is provided with anti-back mechanism, the utility model is rotated guide pipe and guide pipe is tapered, subsequently sea cable is placed between two guide pipes, subsequently loosens guide pipe, under the elasticity left and right of torsion spring makes guide pipe rotate and with sea cable abut, subsequently by first bolt insertion rotating shaft, the rotating shaft can be positioned, avoid only by torsion spring and carry out the clamping guide of sea cable, leading to guide pipe place loosening, subsequently sea cable is from narrow end and is worn, wide end is worn, under the action of traction, it is smoothly passed through, when sea cable appears back tendency, tapered structure forces it and guide pipe contact area increases, generates radial extrusion, forms self-locking state, can effectively avoid sea cable back, to protect the traction process of sea cable.

Description

Technical Field

[0001] This utility model relates to the field of protective devices, specifically a protective device for submarine cable traction. Background Technology

[0002] The submarine cable traction protection device is a professional equipment designed specifically for the laying and maintenance of submarine cables. It is installed on the outside of the submarine cable to form an integrated system of protection, traction and positioning, preventing the submarine cable from being mechanically damaged in the complex marine environment and ensuring safe and efficient construction.

[0003] During the laying of submarine cables, the cables need to be submerged in the seabed. During this process, external factors such as ocean currents may continuously exert horizontal thrust on the cables. When the thrust exceeds the frictional force, the cables may come loose. When they come loose, the cables will repeatedly rub and bend along the laying path, which may exceed the safe bending radius, leading to problems such as insulation layer cracking, metal armor layer wear, or even breakage. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, the current continuously generates horizontal thrust on the submarine cable. When the thrust is greater than the frictional force, it may cause the submarine cable to come loose. This utility model proposes a protective device for submarine cable traction.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a protective device for traction of submarine cables, including a base, a support plate fixedly connected to the upper end of the base, a through groove opened in the support plate, and an anti-reverse slip mechanism provided on the support plate.

[0006] The anti-reverse mechanism includes a hinge seat, which is fixedly connected to one side of the support plate. A rotating shaft is installed inside the hinge seat via a bearing. A guide tube is fixedly connected to one end of the rotating shaft. An anti-slip pad is fixedly connected to the inner wall of the guide tube. A torsion spring is sleeved on the outer side of the rotating shaft. A threaded groove is opened at one end of the rotating shaft, and a first bolt is threadedly connected to the threaded groove.

[0007] Preferably, one end of the torsion spring is fixedly connected to the tapered tube, and the other end of the torsion spring is fixedly connected to the hinge seat, with the first bolt movably connected inside the hinge seat.

[0008] Preferably, a lead screw is installed in the base via a bearing, and a threaded sleeve is threadedly connected to the outside of the lead screw. A bracket is fixedly connected to the upper end of the threaded sleeve, and a connecting shaft is installed on the bracket via a bearing. A rotating roller is fixedly connected to the connecting shaft.

[0009] Preferably, the base has a guide groove inside, and a guide block is slidably connected in the guide groove. The guide block is fixedly connected to the lower end of the bracket.

[0010] Preferably, one end of the lead screw is fixedly connected to a connecting rod, a movable rod is slidably connected inside the connecting rod, one end of the movable rod is fixedly connected to a knob, and a fixing ring is fixedly connected to the outside of the connecting rod.

[0011] Preferably, a second bolt is threaded into the fixing ring, and the second bolt is movably connected to the knob.

[0012] Preferably, there are two guide tubes, which are symmetrically distributed on one side of the passageway, and both guide tubes are conical.

[0013] The advantages of this utility model are:

[0014] This invention involves rotating a conical guide tube, placing the submarine cable between two guide tubes, and then releasing the guide tube. The guide tube rotates under the elasticity of a torsion spring, bringing it into contact with the submarine cable. A first bolt is then inserted into the rotating shaft to limit its movement, preventing the guide tube from becoming loose due to relying solely on the torsion spring for cable clamping and guidance. The submarine cable then passes through smoothly from the narrow end to the wide end under traction. When the cable shows signs of detachment, the conical structure increases the contact area with the guide tube, creating radial compression and a self-locking state, effectively preventing cable detachment and protecting the cable during the traction process. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an explosion diagram of the anti-retraction mechanism of this utility model;

[0018] Figure 3 This utility model Figure 1 Enlarged view of point A in the middle;

[0019] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle;

[0020] Figure 5 This is an exploded view of the internal structure of the base of this utility model;

[0021] Figure 6 This utility model Figure 5 A magnified view of point C in the middle.

[0022] In the diagram: 1. Base; 2. Support plate; 3. Through slot; 4. Anti-reverse mechanism; 41. Hinge seat; 42. Rotating shaft; 43. Guide tube; 44. Anti-slip pad; 45. Torsion spring; 46. Threaded groove; 47. First bolt; 5. Lead screw; 6. Threaded sleeve; 7. Bracket; 8. Connecting shaft; 9. Rotating roller; 10. Guide slot; 11. Guide block; 12. Connecting rod; 13. Moving rod; 14. Knob; 15. Fixing ring; 16. Second bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0025] This application discloses a protective device for submarine cable traction. (Refer to...) Figures 1-4 A protective device for traction of submarine cables includes a base 1, a support plate 2 fixedly connected to the upper end of the base 1, a through groove 3 opened in the support plate 2, and an anti-reverse slip mechanism 4 provided on the support plate 2.

[0026] The anti-return mechanism 4 includes a hinge seat 41, which is fixedly connected to one side of the support plate 2. A rotating shaft 42 is mounted inside the hinge seat 41 via a bearing. One end of the rotating shaft 42 is fixedly connected to a guide tube 43. An anti-slip pad 44 is fixedly connected to the inner wall of the guide tube 43. A torsion spring 45 is sleeved on the outer side of the rotating shaft 42. One end of the rotating shaft 42 has a threaded groove 46, and a first bolt 47 is threaded into the threaded groove 46. One end of the torsion spring 45 is fixedly connected to a tapered tube, and the other end is fixedly connected to the hinge seat 41. The first bolt 47 is movably connected inside the hinge seat 41. There are two guide tubes 43, symmetrically distributed on one side of the passageway 3. Both guide tubes 43 are... The conical shape allows the guide tube 43 to be rotated, and then the submarine cable is passed through the two guide tubes 43. After the guide tubes 43 are released, they rotate under the elasticity of the torsion spring 45 and come into contact with the submarine cable. At this time, the first bolt 47 is twisted to move it into the threaded groove 46 opened in the rotating shaft 42. This can limit the rotating shaft 42, thereby preventing the guide tube 43 from rotating and deviating due to vibration during the submarine cable traction process. This method can adapt to submarine cables of different specifications. The submarine cable is passed in from the narrow end and out from the wide end. When the submarine cable shows a tendency to pull back, the conical structure forces it to increase the contact area with the guide tube 43, generating radial compression and forming a self-locking state, which can effectively prevent the submarine cable from pulling back, thereby protecting the submarine cable traction process.

[0027] Reference Figure 1 , Figure 5 and Figure 6A lead screw 5 is mounted inside the base 1 via bearings. A threaded sleeve 6 is threadedly connected to the outside of the lead screw 5. A bracket 7 is fixedly connected to the upper end of the threaded sleeve 6. A connecting shaft 8 is mounted on the bracket 7 via bearings. A rotating roller 9 is fixedly connected to the connecting shaft 8. A guide groove 10 is provided inside the base 1. A guide block 11 is slidably connected inside the guide groove 10. The guide block 11 is fixedly connected to the lower end of the bracket 7. A connecting rod 12 is fixedly connected to one end of the lead screw 5. A moving rod 13 is slidably connected inside the connecting rod 12. A knob 14 is fixedly connected to one end of the moving rod 13. A fixing ring 15 is fixedly connected to the outside of the connecting rod 12. A second bolt 16 is threadedly connected inside the fixing ring 15. The second bolt 16 is movably connected to the knob 14. Rotating knob 14 can drive connecting rod 12 to rotate, which in turn drives lead screw 5 to rotate. Lead screw 5 and threaded sleeve 6 undergo threaded movement. At this time, threaded sleeve 6 drives bracket 7 to move. Lead screw 5 is divided into two sections with opposite thread directions. The two brackets 7 move towards each other, thereby adjusting the distance between the two brackets 7 to accommodate submarine cables of different specifications. The submarine cable is initially guided by rotating roller 9. During this process, guide block 11 and guide groove 10 cooperate with each other to guide bracket 7. After adjustment, the second bolt 16 can be rotated to move it out of fixing ring 15. At this time, moving rod 13 can be pulled out from connecting rod 12 to avoid abnormal guidance caused by accidentally touching knob 14 and moving rotating roller 9.

[0028] Working principle: Rotating knob 14 drives connecting rod 12 to rotate, which in turn drives lead screw 5 to rotate. Lead screw 5 and threaded sleeve 6 move together, causing threaded sleeve 6 to move bracket 7. Since lead screw 5 is divided into two sections with opposite thread directions, the two brackets 7 move towards each other, thus adjusting the distance between them to accommodate different specifications of submarine cables. Rotating roller 9 provides initial guidance for the submarine cable. During this process, guide block 11 and guide groove 10 cooperate to guide the bracket 7. After adjustment, the second bolt 16 can be rotated to move it out of fixing ring 15. Then, moving rod 13 can be pulled out of connecting rod 12 to prevent accidental movement of rotating roller 9 due to accidental activation of knob 14, thus avoiding guidance errors. Normally, the guide tube 43 is rotated, and then the submarine cable is passed through the two guide tubes 43. The guide tube 43 is then released, and under the elasticity of the torsion spring 45, the guide tube 43 rotates and comes into contact with the submarine cable. At this time, the first bolt 47 is twisted to move it into the threaded groove 46 opened in the rotating shaft 42. This can limit the rotating shaft 42, thereby preventing the guide tube 43 from rotating and deviating due to vibration during the submarine cable traction process. This method can also adapt to submarine cables of different specifications. The submarine cable is passed in from the narrow end and out from the wide end. When the submarine cable shows a tendency to pull back, the conical structure forces it to increase the contact area with the guide tube 43, generating radial compression and forming a self-locking state, which can effectively prevent the submarine cable from pulling back, thereby protecting the submarine cable traction process.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A protective device for submarine cable traction, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to a support plate (2), and a through groove (3) is provided in the support plate (2). An anti-reverse detachment mechanism (4) is provided on the support plate (2). The anti-reverse mechanism (4) includes a hinge seat (41), which is fixedly connected to one side of the support plate (2). A rotating shaft (42) is installed in the hinge seat (41) through a bearing. A guide tube (43) is fixedly connected to one end of the rotating shaft (42). An anti-slip pad (44) is fixedly connected to the inner wall of the guide tube (43). A torsion spring (45) is sleeved on the outer side of the rotating shaft (42). A threaded groove (46) is opened at one end of the rotating shaft (42). A first bolt (47) is threadedly connected in the threaded groove (46).

2. The protective device for submarine cable traction according to claim 1, characterized in that: One end of the torsion spring (45) is fixedly connected to the tapered tube, and the other end of the torsion spring (45) is fixedly connected to the hinge seat (41). The first bolt (47) is movably connected inside the hinge seat (41).

3. The protective device for submarine cable traction according to claim 1, characterized in that: A lead screw (5) is installed in the base (1) through a bearing. A threaded sleeve (6) is threaded to the outside of the lead screw (5). A bracket (7) is fixedly connected to the upper end of the threaded sleeve (6). A connecting shaft (8) is installed on the bracket (7) through a bearing. A rotating roller (9) is fixedly connected to the connecting shaft (8).

4. The protective device for submarine cable traction according to claim 1, characterized in that: The base (1) has a guide groove (10) inside, and a guide block (11) is slidably connected in the guide groove (10). The guide block (11) is fixedly connected to the lower end of the bracket (7).

5. A protective device for submarine cable traction according to claim 3, characterized in that: One end of the lead screw (5) is fixedly connected to a connecting rod (12), a moving rod (13) is slidably connected inside the connecting rod (12), a knob (14) is fixedly connected to one end of the moving rod (13), and a fixing ring (15) is fixedly connected to the outside of the connecting rod (12).

6. A protective device for submarine cable traction according to claim 5, characterized in that: The fixing ring (15) is connected to a second bolt (16) by a thread, and the second bolt (16) is movably connected to the knob (14).

7. A protective device for submarine cable traction according to claim 1, characterized in that: There are two guide tubes (43), which are symmetrically distributed on one side of the through groove (3), and both guide tubes (43) are conical.

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