Submarine cable armoring anchoring terminal structure

Abstract

The utility model belongs to the technical field of anchoring terminal structures, and particularly relates to a submarine cable armoring anchoring terminal structure. Comprising a base taper sleeve, a base block, an anchor taper sleeve, an end block and a top sleeve, the base block is in threaded connection with the interior of one end of the top sleeve, the end block is rotationally clamped in the other end of the top sleeve, the base taper sleeves are circumferentially tensioned on the base block, the anchor taper sleeves are circumferentially tensioned on the end block, and the base taper sleeves and the anchor taper sleeves are coaxially distributed in a one-to-one correspondence mode. And each submarine cable armor layer fixedly penetrates into the shaft holes of each base taper sleeve and each anchor taper sleeve. The submarine cable armored anchoring terminal structure mainly solves the problem of tensile resistance reliability of the submarine cable armored anchoring terminal structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of anchoring terminal structures, is used for connecting a joint box with a submarine cable armor layer to realize the transmission of submarine cable axial tension and protection of the submarine cable core, and particularly relates to a submarine cable armor anchoring terminal structure. Background Art

[0002] Submarine cables are the most efficient way to connect power and communications to offshore islands. With the vigorous development of the ocean, submarine cables are often forced to be cut during cable laying due to bad weather. The increasing frequency of human activities in the offshore area, accompanied by major man-made damage such as ships anchoring and fishing nets dragging, as well as damage from natural factors such as submarine earthquakes, landslides, and ocean current wear, pose a serious threat to safe operation. During cable laying and emergency repairs, the armor layer needs to be connected to the junction box through the anchor terminal to achieve the transmission of axial tension in the cable and protect the cable core. The load transfer between the submarine cable armor and the anchor relies on friction, which is mainly achieved through extrusion and potting. The reliability of the anchor terminal's tensile strength performance requires not only that the production process must comply with the process, but also that the anchor terminal's armor layer must be subjected to consistent force. Utility Model Content

[0003] The purpose of the utility model is to provide a submarine cable armored anchoring terminal structure to solve the problem of tensile strength reliability of the submarine cable armored anchoring terminal.

[0004] In order to solve the above technical problems, the utility model provides a submarine cable armored anchoring terminal structure, comprising: a base cone sleeve, a base block, an anchor cone sleeve, an end block and a top sleeve;

[0005] Among them, one end of the top sleeve is internally threadedly connected to the base block, and the other end is internally rotatably clamped with the end block. A number of the base cone sleeves are circumferentially tightened on the base block, and a number of the anchor cone sleeves are circumferentially tightened on the end block. The several base cone sleeves and the anchor cone sleeves are coaxially distributed in a one-to-one correspondence, and each submarine cable armor layer is fixedly inserted into the axial hole of each base cone sleeve and the anchor cone sleeve.

[0006] Preferably, several strands of the submarine cable armor layer are circumferentially fixedly distributed on the outer wall of the submarine cable core.

[0007] Preferably, each armor layer of the submarine cable is installed inside the axial hole of the base cone sleeve by extrusion or packaging.

[0008] Preferably, the base block and the end block further include an axial hole opened at the axis, and the axial hole is used to pass the submarine cable core.

[0009] Preferably, the connecting end faces of the top sleeve and the end block further include a clamping block and a clamping slot respectively provided, and the end faces are rotatably connected by the clamping block and the clamping slot.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This utility model mainly solves the problem of tensile strength reliability of the submarine cable armor anchor terminal structure. The fixed size of the armor attachment is controllable and the free size load pre-applied is eliminated, ensuring the dimensional consistency between the anchor terminal side and the starting end of the connected submarine cable armor layer, thereby improving the reliability of tensile strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional view of a submarine cable armored anchoring terminal structure of the present utility model.

[0013] In the figure: 1-submarine cable core, 2-submarine cable armor layer, 3-base cone sleeve, 4-base block, 5-anchor cone sleeve, 6-end block, 7-top sleeve. DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0015] like Figure 1 As shown, the embodiment of the present invention provides a submarine cable armor anchoring terminal structure, comprising: a base cone sleeve 3, a base block 4, an anchor cone sleeve 5, an end block 6 and a top sleeve 7;

[0016] Among them, one end of the top sleeve 7 is internally threadedly connected to the base block 4, and the other end is internally rotatably clamped with the end block 6. Several base cone sleeves 3 are tightened circumferentially on the base block 4, and several anchor cone sleeves 5 are tightened circumferentially on the end block 6. The several base cone sleeves 3 and the anchor cone sleeves 5 are coaxially distributed in a one-to-one correspondence, and each submarine cable armor layer 2 is fixedly inserted into the axial hole of each base cone sleeve 3 and anchor cone sleeve 5.

[0017] Several strands of submarine cable armor layers 2 are fixedly distributed circumferentially on the outer wall of the submarine cable core 1 .

[0018] Each submarine cable armor layer 2 is installed inside the axial hole of the base cone sleeve 3 by extrusion or packaging.

[0019] The base block 4 and the end block 6 also include an axial hole opened at the axis, and the axial hole is used to pass the submarine cable core 1.

[0020] The connecting end surfaces of the top sleeve 7 and the end block 6 also include respectively provided clamping blocks and clamping slots, and the end surfaces are connected by rotation through the clamping blocks and clamping slots.

[0021] It also includes the following usage principles:

[0022] The submarine cable armor terminal structure provides reliable axial connection force, and its manufacturing process is as follows: first, mark the fixed position of the anchor terminal cone sleeve before the submarine cable armor layer 2 is spread out; secondly, after the armor layer is spread out, it is divided into strands as needed and then the base cone sleeve 3 is made at the marked position (the base cone sleeve 3 is connected to the submarine cable armor layer 2 by extrusion or pre-packaging); thirdly, the armor layer strands pass through the base block 4, the top sleeve 7 and the end block 6; then the anchor cone sleeve 5 is made at the marked position; finally, the top sleeve 7 is used to tighten the armor layer between the cone sleeves. The anchor terminal uses axial tensioning displacement to eliminate the free size between the base cone sleeve 3 and the anchor cone sleeve 5 under the controllable spacing between the base cone sleeve 3 and the anchor cone sleeve 5 and the initial connection force provided by the production of the submarine cable armor (that is, the length between the base cone sleeve 3 and the anchor cone sleeve 5 is changed from the free state when the above two cone sleeves are produced to the tensioned and taut state, and at the same time, the original assembly gap in the length direction is eliminated, so that the two base cone sleeves 3 and the anchor cone sleeve 5 and the corresponding end blocks and base blocks are respectively fitted), and the radial pressure generated by the base cone sleeve 3 and the anchor cone sleeve 5 is increased, thereby increasing the connection friction between the base cone sleeve 3, the anchor cone sleeve 5 and the submarine cable armor layer 2 to achieve its reliable tensile strength (after the base cone sleeve 3 and the anchor cone sleeve 5 are produced, the length between the base cone sleeve 3 and the anchor cone sleeve 5 is fixed, and then the top sleeve 7 is rotated. Due to the threaded force between the top sleeve 7 and the base block 4, the top sleeve 7 will push the end block 6 to produce axial displacement relative to the base block 4 to increase the spacing between the two).

[0023] The above description is only a description of the preferred embodiment of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A submarine cable armored anchoring terminal structure, characterized in that: include: Base cone sleeve (3), base block (4), anchor cone sleeve (5), end block (6) and top sleeve (7); One end of the top sleeve (7) is internally threadedly connected to the base block (4), and the other end is internally rotatably clamped to the end block (6). A plurality of base cone sleeves (3) are circumferentially tightened on the base block (4), and a plurality of anchor cone sleeves (5) are circumferentially tightened on the end block (6). The plurality of base cone sleeves (3) and the anchor cone sleeves (5) are coaxially distributed in a one-to-one correspondence, and each submarine cable armor layer (2) is fixedly inserted into the axial hole of each base cone sleeve (3) and the anchor cone sleeve (5).

2. A submarine cable armored anchoring terminal structure according to claim 1, characterized in that: Several strands of the submarine cable armor layer (2) are circumferentially and fixedly distributed on the outer wall of the submarine cable core (1).

3. The submarine cable armored anchoring terminal structure according to claim 1, characterized in that: Each submarine cable armor layer (2) is installed inside the axial hole of the base cone sleeve (3) by extrusion or packaging.

4. The submarine cable armored anchoring terminal structure according to claim 1, characterized in that: The base block (4) and the end block (6) also include an axial hole opened at the axis, and the axial hole is used to pass the submarine cable core (1).

5. The submarine cable armored anchoring terminal structure according to claim 1, characterized in that: The connecting end faces of the top sleeve (7) and the end block (6) further include a clamping block and a clamping slot respectively provided, and the end faces are connected in a rotating manner through the clamping block and the clamping slot.

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