A protected subsea cable anchoring device

Abstract

The utility model discloses a kind of submarine cable anchoring devices with protection, it is related to marine engineering construction technical field, including mounting seat and end conical part, and it is connected fixed by fastening screw, the submarine cable that passes through is limited by the middle sleeve of mounting seat, end conical part adopts half tile with locking wedge tooth from sleeve end portion's inner taper hole wedge, so that wedge tooth necking is tightly on submarine cable, realize the centring uniform fixing of submarine cable, so that axial both ends arbitrary orientation pull will not occur misalignment, realize firm fixed. Meanwhile, end also has conical polyurethane half tile, after installation, using hoop tightness clamping band locking, the bending protection of submarine cable sleeve end portion is carried out. Through such mode, effectively solve the problem of submarine cable anchoring not durable, the overall structure of the utility model is simple, less parts, installation operation is convenient, by the uniform continuous hoop tightness of circumferential direction, no local hard knock of submarine cable, axial fixed controllable, long-term use is stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of marine engineering construction technology, specifically to a protective submarine cable anchoring device. Background Technology

[0002] Submarine cables, as a crucial medium for energy transmission, play an increasingly vital role in marine engineering and daily life. To ensure the reliability and stability of submarine cables, they require securing them at the landing point or along longer horizontal sections. After landing, submarine cables need to be connected to junction boxes and other equipment. Generally, the distance between the submarine cable and the junction box is short, located in a transfer well or working pit, and they can only be inserted into the junction box after being secured at the landing point. However, in some cases, the distance between the landing point and the junction box is greater, necessitating post-landing securing of the submarine cable to prevent axial movement and ensure adequate fixation.

[0003] Based on this, we propose a protective submarine cable anchoring device. Utility Model Content

[0004] In order to solve the technical problems existing in the prior art, the present invention provides a protective submarine cable anchoring device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective submarine cable anchoring device, comprising a mounting base and an end tapered component. The mounting base consists of an end connecting ring, an intermediate sleeve, a base plate, and a supporting vertical plate. The end connecting ring is welded to both ends of the intermediate sleeve, and the supporting vertical plate is provided at the lower end of the intermediate sleeve. The base plate is welded to the bottom of the supporting vertical plate. The end tapered component consists of a metal front end and a polyurethane tapered rear end. The front end of the metal front end is a wedge-shaped longitudinally slotted locking wedge tooth. The middle part of the metal front end is a semi-flange for connecting the end connecting ring. The rear part of the metal front end is a connecting semi-tile body with a U-shaped transverse interface. The rear end of the metal front end is a stepped rear connecting cylinder, and a first clamping clip is installed on the annular groove of the rear connecting cylinder; the polyurethane conical rear end is a half-conical cylinder formed by casting polyurethane elastomer using a mold, which is cast integrally with the metal front end; the tail of the polyurethane conical rear end is provided with a second clamping clip mounting groove, and a second clamping clip is installed in the second clamping clip mounting groove. The second clamping clip, together with the first clamping clip, forms a sleeve ring around the paired end conical pieces and clamps them onto the submarine cable; the mounting base and the end conical pieces are connected by fastening screws, and the fastening screws are screwed into the threaded hole of the end connecting ring through the flange hole of the half flange in the middle of the metal front end.

[0006] Preferably, the end connecting ring is a thick circular ring with a threaded hole and an internal tapered hole.

[0007] Preferably, the first clamping strap and the second clamping strap are clamps made of corrosion-resistant steel strips.

[0008] Compared with the prior art, the present invention provides a submarine optical cable cutting device, which has the following advantages: This invention restricts the passage of the submarine cable by using half-strips with locking wedge-shaped teeth at both ends, which are wedged into the inner conical holes at the sleeve ends. This allows the wedge-shaped teeth to tighten and clamp the cable, achieving uniform and centered fixation. This ensures that axial tension at either end will not cause misalignment, resulting in a secure fixation. Simultaneously, the ends also feature conical polyurethane half-strips, which are locked in place with clamping clips after installation, providing bending protection to the cable's exit end from the sleeve. This method effectively solves the problem of unreliable submarine cable anchoring. The overall structure is simple, with fewer parts, and easy to install and operate. Furthermore, the uniform and continuous circumferential clamping avoids localized hard impacts on the cable, ensuring controllable axial fixation and long-term stable and reliable operation. Attached Figure Description

[0009] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the mounting base structure of a preferred embodiment of this utility model; Figure 3 This is a schematic diagram of the end tapered component structure of a preferred embodiment of this utility model.

[0010] In the diagram: 1. Submarine cable; 2. Mounting base; 21. End connecting ring; 22. Intermediate sleeve; 23. Base plate; 24. Supporting vertical plate; 3. Fastening screw; 4. First clamping clip; 5. End tapered part; 51. Metal front end; 511. Locking wedge tooth; 512. Connecting half-tile body; 513. Rear end connecting cylinder; 52. Polyurethane tapered rear end; 521. Second clamping clip mounting groove; 6. Second clamping clip. Detailed Implementation

[0011] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0012] This embodiment proposes a protective submarine cable anchoring device, such as... Figures 1 to 3 As shown, the submarine cable anchoring device adopts a steel sleeve structure with a base to restrict the passing submarine cable. Both ends use half-sleeves with locking wedge-shaped teeth to wed in from the inner conical holes at the sleeve ends, causing the wedge-shaped teeth to neck and tighten onto the submarine cable, achieving uniform centering and fixation. This ensures that axial tension at either end will not cause misalignment, achieving a reliable fixation. Simultaneously, the ends also have conical polyurethane half-sleeves, which are locked after installation using clamping straps to protect the cable from bending at the sleeve exit end. The submarine cable anchoring device consists of: mounting bases 2 and 3, fastening screws, a first clamping strap 4, an end conical piece 5, and a second clamping strap 6.

[0013] Mounting base 2 is a steel structural frame with a through hole at the top and a supporting base. It serves as the fixed support foundation for the entire anchoring device. Its components include: end connecting ring 21, intermediate sleeve 22, base plate 23, and supporting vertical plate 24. The end connecting ring 21 is a thick circular ring with a threaded hole, a certain thickness, and an internal tapered hole. It serves as the connection foundation for the end tapered part 5. The tapered hole is slightly larger than the locking wedge tooth 511, allowing the locking wedge tooth 511 to be embedded in the thick neck and tightened inward. There is an end connecting ring 21 at both the front and rear. In the middle is an intermediate sleeve 22 made of thick-walled tube. The inner diameter is consistent with the inner hole of the end connecting ring 21, allowing the submarine cable 1 to pass through with a gap. The end connecting ring 21 and intermediate sleeve 22 are welded together to form a sleeve with flanges at both ends. The bottom plate 23 is a rectangular steel plate with perforated plates at the four corners to accommodate the installation of anchor bolts. It serves as the overall support installation foundation. A vertical support plate 24 is welded on the base plate 23, so that the sleeve formed by the end connecting ring 21 and the intermediate sleeve 22 is at a certain height from the ground. The thickness and arrangement of the elbow plate are determined according to the design and process, so as to meet the requirements of convenient manufacturing and reasonable structural stress.

[0014] The fastening screw 3 is an internal hexagonal head screw or a hexagonal head screw that meets the requirements for corrosion resistance and load-bearing capacity. It can be made of stainless steel or a coated high-strength fastener. It is inserted into the threaded hole of the end connecting ring 21 of the mounting base 2 through the flange hole of the metal front end 51. By tightening, the end tapered part 5 is connected to the mounting base 2, and at the same time, the locking wedge tooth 511 is necked along the inner tapered hole of the end connecting ring 21 to tighten the submarine cable 1. Following the same principle, a larger number of fastening screws 3 can be arranged to improve the connection strength and structural reliability.

[0015] The first clamping strap 4 is a clamp made of corrosion-resistant steel strip. After being connected by buckle or bolt, it is clamped on the annular groove outside the rear connecting cylinder 513 of the metal front end 51 of the end tapered part 5, forming a sleeve ring around the outside of the submarine cable 1 to prevent the two halves from separating when subjected to bending force.

[0016] The end tapered component 5 is a semi-conical structure consisting of a front-end steel component and a rear-end polyurethane elastomer casting, forming a front flange and a rear flexible tapered sleeve. It is fitted around the outside of the submarine cable 1 to secure and protect it from bending. Its components include: a metal front end 51 and a polyurethane tapered rear end 52. The metal front end 51 is a semi-conical structure machined from forged steel. The foremost part is a wedge-shaped locking wedge tooth 511 with longitudinal slots, which deforms and necks to tighten the internally wrapped submarine cable 1 when inserted into the tapered hole of the end connecting ring 21. Following this is a semi-flange to accommodate the installation of the end connecting ring 21, and a connecting semi-conical body 512 at the rear end, featuring a U-shaped transverse interface and a groove to meet the space requirements for installing the fastening screws 3. The rear connecting cylinder 513, with a stepped rear section, has the same inner diameter as the front section. It is equipped with insert-type structural components to facilitate connection with the polyurethane casting at the rear end, ensuring a secure connection between the polyurethane conical rear end 52 and the front metal component during casting. Externally, it features machined annular grooves to accommodate the installation of the first clamping strap 4, thus combining the two half-sleeves into a single sleeve and improving circumferential connection capability. The polyurethane conical rear end 52 is a half-sleeve conical cylinder formed by casting polyurethane elastomer using a mold. It is integrally cast with the metal front end 51, forming a conical shape with a certain thickness at the tail end. A short straight section is located at the tail end, containing a second clamping strap installation groove 521 to accommodate the installation of the second clamping strap 6. Installing the second clamping strap 6 integrates the two conical halves, achieving a bending resistance effect.

[0017] The second clamping strap 6 is a clamp made of corrosion-resistant steel strip. After being connected by buckle or bolt, it is clamped onto the second clamping strap mounting groove 521 of the polyurethane tapered rear end 52 of the end tapered member 5, forming a sleeve ring around the outside of the submarine cable 1 to protect its bending reliability.

[0018] The main steps for implementation and use are as follows: Step 1: Based on the determined curvature of submarine cable 1 at the horizontal fixed position, design the anchoring device according to the structural parameters, curvature limits, and stress requirements of submarine cable 1, and complete the design based on the drawings. Then, process and manufacture the mounting base 2 and the end tapered part 5, and procure standard anti-corrosion fastening screws 3, first clamping clips 4, and second clamping clips 6. After acceptance, deliver the device to the construction site.

[0019] Step 2: Mark the locations where anchoring devices need to be installed on the submarine cable 1. Install the mounting base 2 in the designated positions and secure the base plate 23 with anchor bolts to form a reliable bottom installation. Then, pass the submarine cable 1 through the end connecting ring 21 and the intermediate sleeve 22, adjusting it so that the cable 1 is centered in the sleeve and axially aligned with the marked installation point. Place the set of end tapered parts 5 around the outside of the submarine cable 1, and use the first clamping strap 4 and the second clamping strap 6 to close the two halves. Next, align the flange hole of the metal front end 51 with the threaded hole of the end connecting ring 21 of the mounting base 2, and install the fastening screws 3. Slowly apply force so that the locking wedge teeth 511 continuously engage with the inner tapered hole of the end connecting ring 21. Due to the wedging effect of the tapered shape, the locking wedge teeth 511 deform and neck, clamping tightly to the outside of the submarine cable 1. Ensure the fastening screws 3 are securely tightened to prevent loosening. Complete the installation on one side, and then complete the other side, gradually tightening to the designed torque. Installation is complete.

[0020] Step 3: Continue laying and installing submarine cable 1. Crushed stones are dumped in front of and behind the anchoring device to fix the submarine cable 1 in place and prevent it from swinging. The height difference of the installation is limited by the polyurethane tapered rear end 52 with bending protection to ensure the long-term safety of the anchoring device.

[0021] In the description of this utility model, the terms "first," "second," "another," and "yet another" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0023] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A protected submarine cable anchoring device, comprising a mounting base (2) and an end tapered member (5), characterized in that: The mounting base (2) consists of an end connecting ring (21), an intermediate sleeve (22), a base plate (23), and a support vertical plate (24). The end connecting ring (21) is welded to both ends of the intermediate sleeve (22). The support vertical plate (24) is provided at the lower end of the intermediate sleeve (22). The base plate (23) is welded to the bottom of the support vertical plate (24). The end tapered part (5) consists of a metal front end (51) and a polyurethane tapered rear end (52). The front end of the metal front end (51) is a wedge-shaped longitudinally slotted locking wedge tooth (511). The middle part of the metal front end (51) is a half flange that meets the installation requirements of the end connecting ring (21). The rear part of the metal front end (51) is a connecting half-tile body (512) with a U-shaped transverse interface. The rear end of the metal front end (51) is a stepped rear end. The connecting cylinder (513) has a first clamping strap (4) installed on the annular groove of the rear connecting cylinder (513); the polyurethane conical rear end (52) is a half-conical cylinder formed by casting polyurethane elastomer with a mold, and is cast integrally with the metal front end (51). The tail of the polyurethane conical rear end (52) is provided with a second clamping strap installation groove (521). A second clamping strap (6) is installed in the second clamping strap installation groove (521). The second clamping strap (6) cooperates with the first clamping strap (4) to form a sleeve ring around the paired end conical parts (5) and clamp them onto the submarine cable (1); the mounting base (2) and the end conical parts (5) are connected by fastening screws (3). The fastening screws (3) are screwed into the threaded hole of the end connecting ring (21) through the flange hole of the half flange in the middle of the metal front end (51).

2. The protected submarine cable anchoring device according to claim 1, characterized in that: The end connecting ring (21) is a thick circular ring with a threaded hole and an internal tapered hole.

3. The protected submarine cable anchoring device according to claim 1, characterized in that: The first clamping strap (4) and the second clamping strap (6) are clamps made of corrosion-resistant steel strips.

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