A central positioning protection device for laying submarine cables

Abstract

The present invention discloses a center positioning protection device for laying submarine cables, including a J-shaped tube, the lower end of which is docked with a docking protection device, and the docking protection device includes a sliding block arranged in an annular shape and at equal intervals, and a first slide groove and a second slide groove are respectively provided on both sides of the sliding block, and the first slide groove and the second slide groove are both fixedly connected to a clamping block, which effectively solves the problem that the existing submarine cable center positioning protection device is composed of two mutually symmetrical positioning components, which are composed of a first semicircular straight cylinder and a second semicircular straight cylinder. During use, the clamp is fixed by a plurality of screws and nuts to ensure that it can be tightly fixed around the submarine cable, and the displacement of the submarine cable during movement or use is avoided. However, this method is relatively cumbersome in the installation of the submarine cable bending protection at the lower end of the J-shaped tube, and the subsequent long-term use of the equipment will cause the technical problem of low disassembly efficiency.

Description

Technical Field

[0001] The invention mainly relates to the technical field of submarine cable center positioning, and in particular to a center positioning protection device for submarine cable laying. Background Art

[0002] The main function of the submarine cable center positioning protection device is to protect the submarine cable from rigid collision and impact, and to increase the service life of the submarine cable. The submarine cable center positioning protection device provides multiple protection measures for the submarine cable through its design characteristics.

[0003] The existing submarine cable center positioning protection device is composed of two mutually symmetrical positioning components, which are composed of a first semicircular straight tube and a second semicircular straight tube. During use, multiple screws and nuts are used to fix the clamp tightly around the submarine cable to prevent the submarine cable from shifting during movement or use. However, this method is more complicated in the installation of the submarine cable bending protection at the lower end of the J-tube, and the subsequent long-term use of the equipment will cause low disassembly efficiency.

[0004] Therefore, a central positioning protection device for submarine cable laying is needed to solve the above problems. Summary of the invention

[0005] The technical solution of the present invention aims at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology. It mainly provides a central positioning protection device for submarine cable laying to solve the technical problems raised in the above background technology.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: a central positioning protection device for laying submarine cables, including a J-shaped tube, the lower end of the J-shaped tube is docked with a docking protection device, the docking protection device includes sliding blocks arranged equidistantly in a ring shape, and a first slide groove and a second slide groove are respectively provided on both sides of the sliding block, and the first slide groove and the second slide groove are both fixedly connected to a clamping block.

[0007] Preferably, the bottom of the first slide groove is provided with first holes at equal intervals, and the engaging block is provided with second holes at equal intervals, and the second holes are engaged with the rotating teeth at one end of the rotating latch pin.

[0008] Preferably, a hexagonal hole is provided at the other end of the rotating pin.

[0009] Preferably, the rotating latch is provided with a limiting hole, and the limiting hole is slidably connected to the limiting rod.

[0010] Preferably, one end of the limiting rod close to the J-shaped tube is connected and fixed to one side of the pressure ring, and the other side of the pressure ring abuts against the bell mouth of the J-shaped tube.

[0011] Preferably, one side of the pressure ring close to the J-tube is connected and fixed to the neoprene sheet.

[0012] Preferably, the corners of one end of the clamping block away from the J-shaped tube are all provided with a 30° slope.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the first slide groove and the second slide groove are entered through the clamping block, thereby relying on the flexibility of the outer sheath of the submarine cable itself to clamp the clamping block with the first slide groove and the second slide groove, so that the sliding clamping block wraps the submarine cable in a ring shape, thereby replacing the bolt connection, causing the trouble of installation and disassembly.

[0014] Since the connection between the outer sheath of the submarine cable and the sliding block by squeezing alone cannot ensure that the sliding blocks will not be separated due to lateral impact of heavy objects, it is necessary to rotate the pin into the first hole groove to reach the second hole groove and then rotate the rotating tooth to engage with the second hole groove, so as to improve the firmness of the sliding blocks, thereby replacing the bolt connection and facilitating subsequent disassembly.

[0015] The pressure ring is pulled up by the sliding block to come into contact with the bell mouth of the J-tube, thereby clamping the limit rod in the limit hole opened by the rotating pin. As long as the J-tube is not adjusted, the pressure ring will always be in the bell mouth of the J-tube, clamping the limit rod in the limit hole opened by the rotating pin, thereby improving the strength between the sliding blocks and preventing them from detaching.

[0016] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0018] Figure 2 It is a structural schematic diagram of the docking protection device in the present invention;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 is a schematic structural diagram of the second hole groove in the present invention;

[0021] Figure 5 It is a structural schematic diagram of the rotary bayonet in the present invention;

[0022] Figure 6 It is a side structural schematic diagram of the docking protection device in the present invention.

[0023] Markings in the figure: 1-J-type tube, 2-docking protection device, 21-sliding block, 211-first slide groove, 212-second slide groove, 213-clamping block, 2111-first hole groove, 2121-second hole groove, 22-rotating bayonet, 221-rotating latch, 222-hexagonal hole, 23-limiting rod, 24-pressure ring. DETAILED DESCRIPTION

[0024] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] See also Figure 1-Figure 6 A center positioning protection device for laying a submarine cable comprises a J-shaped tube 1, the bell mouth of the lower end of the J-shaped tube 1 is docked with a docking protection device 2, the docking protection device 2 comprises a sliding block 21 arranged in an annular shape and equidistantly, a first slide groove 211 and a second slide groove 212 are respectively provided on both sides of the sliding block 21, the first slide groove 211 and the second slide groove 212 are both fixedly connected to a clamping block 213, and a 30° inclined surface is provided at one end of the clamping block 213 away from the J-shaped tube 1. The block 213 enters the first slide groove 211 and the second slide groove 212, thereby relying on the flexibility of the outer sheath of the submarine cable itself to clamp the clamping block 213 with the first slide groove 211 and the second slide groove 212, so that the sliding clamping block 21 wraps the submarine cable in a ring shape, thereby replacing the bolt connection, causing the trouble of installation and disassembly, and the corners at one end of the clamping block 213 are provided with a 30° inclined surface, which makes it easier for the clamping block 213 to dock with the first slide groove 211 and the second slide groove 212, thereby improving efficiency.

[0028] The first slots 2111 are equidistantly formed at the bottom of the first slide slot 211, and the second slots 2121 are equidistantly formed at the clamping block 213. The second slots 2121 are clamped with the rotating teeth 221 at one end of the rotating pin 22. Since the clamping connection between the outer sheath of the submarine cable and the sliding block 21 squeezed by the squeeze cannot ensure that the sliding blocks 21 will not be separated due to lateral impact by heavy objects, it is necessary to rotate the pin 22 into the first slot 2111 to reach the second slot 2121 and then rotate the rotating teeth 221 to clamp with the second slot 2121, thereby improving the firmness of the sliding blocks 21, thereby being able to replace the bolt connection and facilitating subsequent disassembly.

[0029] A hexagonal hole 222 is formed at the other end of the rotating latch 22 , and the hexagonal hole 222 can be used by the installer to conveniently use a tool to twist the rotating latch 22 for disassembly and the engagement between the sliding blocks 21 .

[0030] The rotating latch 22 is provided with a limiting hole, which is slidably connected to the limiting rod 23. The limiting rod 23 can prevent the parallel rotating latch 22 from rotating, thereby being limited. When dismantling it later, it is only necessary to pull out the limiting rod 23.

[0031] One end of the limit rod 23 close to the J-tube 1 is connected and fixed to one side of the pressure ring 24, and the other side of the pressure ring 24 is in conflict with the bell mouth of the J-tube 1. One side of the pressure ring 24 close to the J-tube 1 is connected and fixed to the chloroprene rubber sheet. The chloroprene rubber sheet can block seawater from being stored in the J-tube 1 for a long time, and the polychloroprene rubber has good acid and alkali resistance, so it is not easily corroded by seawater, thereby improving the service life. The pressure ring 24 is pulled up by the sliding block 21 to conflict with the bell mouth of the J-tube 1, so that the limit rod 23 is clamped in the limit hole opened by the rotating pin 22, so that as long as the J-tube 1 is not adjusted, the pressure ring 24 will always be in the bell mouth of the J-tube 1 to clamp the limit rod 23 in the limit hole opened by the rotating pin 22, so that the strength between the sliding blocks 21 is improved and will not be separated.

[0032] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A central positioning protection device for laying submarine cables, characterized in that: It comprises a J-shaped tube (1), the lower end of the J-shaped tube (1) is docked with a docking protection device (2), the docking protection device (2) comprises a sliding block (21) arranged in an annular shape and at equal intervals, a first slide groove (211) and a second slide groove (212) are respectively provided on both sides of the sliding block (21), the first slide groove (211) and the second slide groove (212) are both fixedly connected to a clamping block (213), and the clamping blocks (213) on both sides of the sliding block (21) are respectively clamped with the first slide groove (211) and the second slide groove (212) of the adjacent sliding block (21); The first slots (2111) are equidistantly formed at the bottom of the first slide slot (211), and the engaging block (213) is equidistantly formed with second slots (2121), the second slots (2121) are engaged with a rotating tooth (221) at one end of the rotating latch pin (22), and after the rotating latch pin (22) enters the first slot (2111) and reaches the second slot (2121), the rotating tooth (221) is engaged with the second slot (2121) by means of rotation; The other end of the rotating latch (22) is provided with a hexagonal hole (222); A limiting hole is formed on the side wall of the rotating latch (22), the limiting hole is slidably connected to the limiting rod (23), and the limiting rod (23) is engaged in the limiting hole formed in the rotating latch (22); One end of the limiting rod (23) close to the J-shaped tube (1) is connected and fixed to one side of the pressure ring (24), and the other side of the pressure ring (24) is in contact with the bell mouth of the J-shaped tube (1).

2. A center positioning protection device for laying a submarine cable according to claim 1, characterized in that: One side of the pressure ring (24) close to the J-shaped tube (1) is connected and fixed to the chloroprene rubber sheet.

3. A center positioning protection device for laying a submarine cable according to claim 2, characterized in that: The corners of one end of the clamping block (213) away from the J-shaped tube (1) are all provided with a 30° inclined surface.

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