Protection device for protecting submarine cable bending limiter

Abstract

The utility model relates to the technical field of submarine cable limiter protection, in particular to a protection device for protecting submarine cable bending limiters, which comprises a first submarine cable bending limiter and a second submarine cable bending limiter arranged in the first submarine cable bending limiter. The outer wall of the first submarine cable bending limiter and the outer wall of the second submarine cable bending limiter are each provided with two sets of pipe clamps in an attached mode, and bolts are arranged between the two sets of pipe clamps. Through mutual cooperation of a pipe clamp, a bolt, a fixing seat, a brake rod, a connecting rod, a movable bin, a spring, a pull rod, an inserting block, a fixing column and an inserting groove, the purpose of bending limiting of the first submarine cable bending limiter and the second submarine cable bending limiter can be achieved, and the first submarine cable bending limiter is prevented from being excessively bent; and meanwhile, the protection device is convenient for workers to disassemble and assemble, so that the workers can more conveniently install.

Description

Technical Field

[0001] The utility model relates to the technical field of submarine cable limiter protection, in particular to a protection device for protecting a submarine cable bending limiter. Background Art

[0002] The reason why submarine cable bend limiters require protective devices is to protect flexible pipelines and prevent excessive bending or folding under static loads during installation and use. Bend limiters are mainly used in the construction stage of submarine cables or under special working conditions. They are used in conjunction with J-tube sealing devices or J-tube center clamps at the lower port of the J-tube to effectively prevent excessive bending of the submarine cable.

[0003] During use, the existing protective device usually adopts two brackets, which are respectively installed on the first submarine cable bending limiter and the second submarine cable bending limiter, and then the two brackets are connected by bolts to achieve the purpose of bending protection of the bending limiter. However, the installation process of this protective device requires the use of professional tools, and it is also time-consuming and labor-intensive, and it is not convenient for the staff to disassemble and assemble the protective device. For this reason, we propose a protective device for protecting the submarine cable bending limiter. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a protective device for protecting a submarine cable bending limiter. Through the cooperation between the arranged pipe clamp, bolts, fixing seat, brake rod, connecting rod, movable bin, spring, pull rod, plug block, fixing column and slot, the first submarine cable bending limiter and the second submarine cable bending limiter can be bent to prevent the first submarine cable bending limiter from excessive bending. At the same time, the protective device is easy for the staff to disassemble and assemble, making it more convenient for the staff to install.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a protective device for protecting a submarine cable bending limiter, comprising a first submarine cable bending limiter and a second submarine cable bending limiter arranged in the first submarine cable bending limiter, two groups of pipe clamps are fitted on the outer walls of the first submarine cable bending limiter and the second submarine cable bending limiter, bolts are arranged between the two groups of pipe clamps, and the pipe clamps are fixed to the outer walls of the first submarine cable bending limiter and the second submarine cable bending limiter by bolts, two groups of fixing seats are symmetrically arranged on the outer wall of the pipe clamp of the first submarine cable bending limiter, and brake rods are rotatably connected in the fixing seats, and a connecting rod is arranged on the surface of the brake rod facing the second submarine cable bending limiter, and a movable warehouse is arranged on the right side of the connecting rod, a spring is arranged on the inner wall of the movable warehouse, and a pull rod is arranged on the other end of the spring, and the pull rod slides linearly in the movable warehouse, and an insert block is arranged on the right side of the pull rod, and two groups of fixing columns are symmetrically arranged on the outer wall of the pipe clamp on the second submarine cable bending limiter, and a slot is opened on the outer wall of the right side of the fixing column.

[0006] As a preferred technical solution of the utility model, torsion springs are wound around the surfaces of both ends of the brake rod inserted into the fixing seat, and two groups of torsion springs are provided.

[0007] As a preferred technical solution of the utility model, the plug block is C-shaped, and a countersunk hole matched with the plug block is opened on the surface of the fixing column on one side facing the plug block.

[0008] As a preferred technical solution of the utility model, two groups of positioning columns are symmetrically arranged on the outer walls of the first submarine cable bending limiter and the second submarine cable bending limiter, and positioning grooves adapted to the positioning columns are opened in the pipe clamp.

[0009] As a preferred technical solution of the utility model, the pipe clamp is divided into two parts: an upper clamp body and a lower clamp body, and anti-slip patterns are provided on the inner wall of the pipe clamp.

[0010] As a preferred technical solution of the utility model, one end of the spring is welded to the inner wall of the movable bin, and the other end of the spring is welded to the inner wall of the pull rod.

[0011] As a preferred technical solution of the utility model, a ball is arranged between the pull rod and the inner wall of the movable bin, and the ball rotates in the pull rod and drives the pull rod to move back and forth in the movable bin.

[0012] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0013] 1. Through the cooperation between the provided pipe clamp, bolts, fixing seat, brake rod, connecting rod, movable bin, spring, pull rod, plug block, fixing column and slot, the first submarine cable bending limiter and the second submarine cable bending limiter can be bent and limited to prevent the first submarine cable bending limiter from excessive bending. At the same time, the protective device is easy for the staff to disassemble and assemble, making it more convenient for the staff to install;

[0014] 2. By setting the positioning column and positioning groove, when the pipe clamp is installed on the first submarine cable bending limiter and the second submarine cable bending limiter, the pipe clamp is sleeved on the positioning column through the positioning groove, so that the positioning column limits the rotation of the pipe clamp, thereby ensuring the stability of the pipe clamp when used on the first submarine cable bending limiter and the second submarine cable bending limiter, and preventing the pipe clamp from sliding on the first submarine cable bending limiter and the second submarine cable bending limiter, resulting in friction damage to the surfaces of the first submarine cable bending limiter and the second submarine cable bending limiter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the first three-dimensional cross-sectional structure of the utility model;

[0017] Figure 3 It is a second three-dimensional cross-sectional structural schematic diagram of the utility model;

[0018] Figure 4 It is a third three-dimensional cross-sectional structural schematic diagram of the utility model;

[0019] Figure 5 For the utility model Figure 2 A schematic diagram of the enlarged structure at the center;

[0020] Figure 6 For the utility model Figure 4 Schematic diagram of the enlarged structure at point B in the middle.

[0021] Among them: 1. The first submarine cable bending limiter; 2. The second submarine cable bending limiter; 3. Pipe clamp; 4. Bolt; 5. Positioning column; 6. Positioning groove; 7. Fixed seat; 8. Brake rod; 9. Torsion spring; 10. Connecting rod; 11. Movable compartment; 12. Spring; 13. Pull rod; 14. Insert block; 15. Fixed column; 16. Slot. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are all conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified. Example

[0023] See also Figure 1 - Figure 6 A protection device for protecting a submarine cable bending limiter comprises a first submarine cable bending limiter 1 and a second submarine cable bending limiter 2 arranged in the first submarine cable bending limiter 1. Two groups of pipe clamps 3 are fitted on the outer walls of the first submarine cable bending limiter 1 and the second submarine cable bending limiter 2. Bolts 4 are arranged between the two groups of pipe clamps 3. The pipe clamps 3 are fixed to the outer walls of the first submarine cable bending limiter 1 and the second submarine cable bending limiter 2 by the bolts 4. The outer walls of the pipe clamps 3 of the first submarine cable bending limiter 1 are symmetrically provided with There are two sets of fixed seats 7, and brake rods 8 are rotatably connected in the fixed seats 7. A connecting rod 10 is provided on the surface of the brake rod 8 facing the second submarine cable bending limiter 2. A movable warehouse 11 is provided on the right side of the connecting rod 10. A spring 12 is provided on the inner wall of the movable warehouse 11. A pull rod 13 is provided at the other end of the spring 12. The pull rod 13 slides linearly in the movable warehouse 11. An insert block 14 is provided on the right side of the pull rod 13. Two sets of fixed columns 15 are symmetrically arranged on the outer wall of the pipe clamp 3 on the second submarine cable bending limiter 2, and a slot 16 is opened on the outer wall on the right side of the fixed column 15.

[0024] When in use, firstly, the pipe clamp 3 is sleeved on the surface of the first submarine cable bending limiter 1 and the second submarine cable bending limiter 2, and then the two sets of pipe clamps 3 are fixed on the first submarine cable bending limiter 1 and the second submarine cable bending limiter 2 by rotating the bolt 4, and then the plug block 14 is pulled toward the second submarine cable bending limiter 2, so that the plug block 14 drives the pull rod 13 to slide in the movable compartment 11, and the pull rod 13 drives the spring 12 to stretch, and then the connecting rod 10 is rotated, so that the connecting rod 10 drives the brake rod 8 to rotate in the fixing seat 7, and the connecting rod 10 and the first submarine cable bending limiter are connected. The outer wall of the cable bending limiter 1 is fitted, and at the same time, the plug block 14 is driven to rotate to align with the slot 16. Then the plug block 14 is loosened, so that the restoring force generated when the spring 12 is stretched by the pull rod 13 drives the pull rod 13 to reset and slide in the movable compartment 11, and the plug block 14 slides into the slot 16 and abuts against the inner wall of the slot 16, thereby achieving the purpose of bending limiting the first submarine cable bending limiter 1 and the second submarine cable bending limiter 2, preventing the first submarine cable bending limiter 1 from excessive bending. At the same time, the protective device is easy for the staff to disassemble and assemble, making it more convenient for the staff to install.

[0025] In other embodiments, the surfaces of both ends of the brake rod 8 inserted into the fixing seat 7 are wound with torsion springs 9, and two groups of torsion springs 9 are provided;

[0026] With this design, the brake rod 8 can be driven to rotate in the fixing seat 7 through the connecting rod 10, so that the brake rod 8 drives the torsion spring 9 to twist. When the connecting rod 10 needs to be connected to the fixing column 15, the connecting rod 10 is loosened and the restoring force of the torsion spring 9 is used to drive the brake rod 8 to reset and rotate in the fixing seat 7, and the brake rod 8 synchronously drives the connecting rod 10 to fit the outer wall of the first submarine cable bending limiter 1, and aligns the slot 16 with the plug block 14, so as to achieve the purpose of positioning the plug block 14 and the slot 16, and facilitate the staff to connect the connecting rod 10 with the fixing column 15 by using the pull rod 13.

[0027] In other embodiments, the plug block 14 is C-shaped, and a countersunk hole matching the plug block 14 is formed on a surface of the fixing column 15 facing the plug block 14 ;

[0028] This design makes it easier for workers to pull the plug block 14 , while increasing the contact area between the plug block 14 and the fixing column 15 , thereby preventing the second submarine cable bending limiter 2 and the first submarine cable bending limiter 1 from being excessively bent.

[0029] In other embodiments, two groups of positioning columns 5 are symmetrically arranged on the outer walls of the first submarine cable bending limiter 1 and the second submarine cable bending limiter 2, and positioning grooves 6 matching the positioning columns 5 are opened in the pipe clamp 3;

[0030] When the pipe clamp 3 is installed on the first submarine cable bending limiter 1 and the second submarine cable bending limiter 2, the pipe clamp 3 is sleeved on the positioning column 5 through the positioning groove 6, and then the two groups of pipe clamps 3 are connected by the bolt 4, so that the positioning column 5 limits the rotation of the pipe clamp 3, thereby ensuring the stability of the pipe clamp 3 when used on the first submarine cable bending limiter 1 and the second submarine cable bending limiter 2.

[0031] In other embodiments, the pipe clamp 3 is divided into an upper clamp body and a lower clamp body, and the inner wall of the pipe clamp 3 is provided with anti-slip patterns;

[0032] Through this design, the friction between the pipe clamp 3 and the first submarine cable bend limiter 1 or the second submarine cable bend limiter 2 can be increased, thereby preventing the pipe clamp 3 from loosening or rotating on the first submarine cable bend limiter 1 or the second submarine cable bend limiter 2 and affecting the use of the protective device.

[0033] In other embodiments, one end of the spring 12 is welded to the inner wall of the movable chamber 11, and the other end of the spring 12 is welded to the inner wall of the pull rod 13;

[0034] Through this design, the connection strength between the spring 12 and the movable compartment 11 and the pull rod 13 can be increased. By pulling the pull rod 13, the spring 12 is stretched. By loosening the pull rod 13, the pull rod 13 drives the plug 14 to slide into the slot 16, thereby achieving the purpose of limiting the bending of the second submarine cable bending limiter 2.

[0035] In other embodiments, a ball is disposed between the pull rod 13 and the inner wall of the movable chamber 11, and the ball rotates in the pull rod 13 and drives the pull rod 13 to move back and forth in the movable chamber 11;

[0036] Through this design, the sliding friction of the pull rod 13 in the movable chamber 11 can be converted into rolling friction, and the friction damage suffered by the pull rod 13 when sliding in the movable chamber 11 is effectively reduced.

[0037] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A protection device for protecting a submarine cable bend limiter, comprising a first submarine cable bend limiter (1) and a second submarine cable bend limiter (2) arranged inside the first submarine cable bend limiter (1), characterized in that: Two groups of pipe clamps (3) are fitted on the outer walls of the first submarine cable bend limiter (1) and the second submarine cable bend limiter (2), bolts (4) are arranged between the two groups of pipe clamps (3), the pipe clamps (3) are fixed to the outer walls of the first submarine cable bend limiter (1) and the second submarine cable bend limiter (2) by the bolts (4), two groups of fixing seats (7) are symmetrically arranged on the outer walls of the pipe clamps (3) of the first submarine cable bend limiter (1), brake rods (8) are rotatably connected in the fixing seats (7), and the brake rods (8) are directed toward the second submarine cable bend limiter. A connecting rod (10) is provided on one side surface of the cable bending limiter (2), a movable compartment (11) is provided on the right side of the connecting rod (10), a spring (12) is provided on the inner wall of the movable compartment (11), a pull rod (13) is provided at the other end of the spring (12), the pull rod (13) slides linearly in the movable compartment (11), an insert block (14) is provided on the right side of the pull rod (13), two groups of fixing columns (15) are symmetrically provided on the outer wall of the pipe clamp (3) on the second submarine cable bending limiter (2), and a slot (16) is provided on the right side outer wall of the fixing column (15).

2. A protection device for protecting a submarine cable bending limiter according to claim 1, characterized in that: Torsion springs (9) are wound around the surfaces of both ends of the brake rod (8) placed in the fixing seat (7), and two groups of torsion springs (9) are provided.

3. A protection device for protecting a submarine cable bending limiter according to claim 1, characterized in that: The insert block (14) is C-shaped, and a countersunk hole matching the insert block (14) is provided on a surface of the fixing column (15) on one side facing the insert block (14).

4. A protection device for protecting a submarine cable bend limiter according to claim 1, characterized in that: Two groups of positioning columns (5) are symmetrically arranged on the outer walls of the first submarine cable bending limiter (1) and the second submarine cable bending limiter (2), and positioning grooves (6) matching the positioning columns (5) are provided in the pipe clamp (3).

5. A protection device for protecting a submarine cable bending limiter according to claim 1, characterized in that: The pipe clamp (3) is divided into two parts, an upper clamp body and a lower clamp body, and the inner wall of the pipe clamp (3) is provided with anti-slip patterns.

6. A protection device for protecting a submarine cable bend limiter according to claim 1, characterized in that: One end of the spring (12) is welded to the inner wall of the movable chamber (11), and the other end of the spring (12) is welded to the inner wall of the pull rod (13).

7. A protection device for protecting a submarine cable bend limiter according to claim 1, characterized in that: A ball bearing is arranged between the pull rod (13) and the inner wall of the movable bin (11), and the ball bearing rotates inside the pull rod (13) and drives the pull rod (13) to move back and forth inside the movable bin (11).

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