Underwater clamping and stringing device

Abstract

The utility model discloses an underwater clasping and stringing device which comprises a rod body and a plurality of limiting assemblies, wherein the rod body is used for being put down to penetrate through a clasping; the end portion of the first end of the rod body is provided with a penetrating connection portion used for penetrating connection of a pulling rope. The multiple limiting assemblies are arranged on the rod body at intervals in the axial direction of the rod body so that the rod body can be limited in the center of the holding clamp. According to the underwater clasping and stringing device, the rod body and the limiting assembly arranged on the rod body are used for being connected with a traction rope in a penetrating mode and lowering the traction rope to penetrate through all submarine cable clasps, and the structure and operation are simple on the premise that the submarine cable drawing work is completed; the rod body, the limiting assembly and other structures can use local materials, the cost is reduced, and convenience is provided for on-site construction operation.

Description

Technical Field

[0001] The utility model relates to a rope threading tool, in particular to an underwater clamping rope threading device. Background Art

[0002] The installation of submarine cable protection tubes and clamps is mainly used for the only path for submarine cables to reach platform facilities. The installation and construction of the clamp consists of two parts, above water and underwater, and is coordinated by a diving team. After the installation of the clamp is completed, the surface construction team and the diving team need to cooperate to pass through the clamp to form a closed-loop traction rope as a reserve for traction of the submarine cable, so as to ensure that the traction rope fixes the end of the submarine cable when the submarine cable is pulled and smoothly pulls it to the platform.

[0003] Due to the unpredictable nature of ocean weather, especially the destructive power of typhoons, the construction of the anchor clamps takes a long time, often requiring evacuation during typhoons. After the anchor clamps are installed and the traction rope is threaded, there is still a significant gap before the submarine cable can be pulled out. During this time, the traction rope can be easily severed by the typhoon, which would greatly hinder the cable pulling out. Requiring a diving team to rethread the rope at this time would impose a significant burden on project costs and waste. Therefore, based on these construction conditions, it is imperative to study the possibility of threading the traction rope from the surface. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an underwater clamping and rope threading device with simple structure and operation.

[0005] The technical solution adopted by the utility model to solve the technical problem is: to provide an underwater clamping and rope threading device, comprising a rod body for lowering and passing through the clamping, and a plurality of limit assemblies;

[0006] The end portion of the first end of the rod body is provided with a connection portion for the traction rope to pass through; a plurality of the limiting components are arranged on the rod body at intervals along the axial direction of the rod body to limit the rod body at the center of the clamp.

[0007] In some embodiments, the end portion of the rod body opposite to the second end is conical.

[0008] In some embodiments, each of the limiting assemblies includes at least two limiting plates, and the at least two limiting plates are spaced apart and distributed on the rod along the circumference of the rod;

[0009] Each of the limiting plates extends on the rod body along the axial direction of the rod body, and a side surface of the limiting plate facing away from the connecting portion is an inclined surface corresponding to the trumpet mouth on the clamp.

[0010] In some embodiments, each of the limiting assemblies includes three limiting plates, which are evenly spaced along the circumference of the rod and connected to the outer surface of the rod.

[0011] In some embodiments, each of the limiting assemblies includes four limiting plates, which are evenly spaced along the circumference of the rod and connected to the outer surface of the rod.

[0012] In some embodiments, the width of the limiting plate is 140 mm.

[0013] In some embodiments, each of the limiting assemblies includes a limiting ring connected to the rod body around the circumference of the rod body.

[0014] In some embodiments, the maximum distance between two adjacent groups of the limiting components on the rod body is equal to or greater than the distance between two adjacent clamps.

[0015] In some embodiments, the length of the rod body is equal to or greater than the sum of the length of a clamp and the distance between the clamp and another adjacent clamp.

[0016] In some embodiments, the length of the rod is 6000 mm; the diameter of the rod is 50 mm.

[0017] The beneficial effects of this utility model include: the rod body and the limit assembly provided thereon are used to thread the traction rope and lower the threading rope through all the submarine cable clamps, completing the submarine cable pulling operation. The structure and operation are simple. The rod body and the limit assembly can be made of local materials, reducing costs and facilitating on-site construction operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0019] Figure 1 This is a schematic structural diagram of an underwater clamping and rope threading device according to the first embodiment of the present invention;

[0020] Figure 2 This is a structural diagram of an underwater clamping and rope threading device according to a second embodiment of the present invention;

[0021] Figure 3 yes Figure 2 a schematic diagram of a radial cross section of the device shown;

[0022] Figure 4 This is a radial cross-sectional diagram of an underwater clamping and rope threading device according to a third embodiment of the present invention;

[0023] Figure 5 This is a structural diagram of an underwater clamping and rope threading device according to a fourth embodiment of the present invention;

[0024] Figure 6 yes Figure 5 Schematic diagram of radial cross section of the device shown. DETAILED DESCRIPTION

[0025] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings.

[0026] like Figure 1 、 Figure 2 and Figure 5 As shown, the underwater clamping and rope threading device of some embodiments of the present invention may include a rod body 10 and a plurality of limiting components 20 arranged on the rod body 10.

[0027] The rod body 10 is of a certain length and can be either hollow or solid. It is used to connect to a towing rope from a winch, etc., leading the towing rope down through the grappling clamp and underwater. Several stopper assemblies 20 are arranged axially along the rod body 10 at intervals to retain the rod body 10 in the center of the grappling clamp and prevent it from hitting the wall.

[0028] Specifically, the rod body 10 has a first end and a second end that oppose each other. A connecting portion 11 is provided on the first end of the rod body 10 for receiving a traction rope. This connecting portion 11 may be a semicircular plate or a circular plate with a through-hole for receiving the traction rope. The connecting portion 11 may be secured to the rod body 10 by welding or other means, or may be integrally formed with the rod body 10.

[0029] When in use, the first end of the rod body 10 faces upward to connect with the traction rope through the connecting portion 11, and the second end of the rod body 10 faces downward as the entry end of the rod body 10 into the clamp. To this end, the end portion 12 of the second end of the rod body 10 is conical, which not only serves as a guide but also prevents scratches on the inner wall of the clamp.

[0030] The rod body 10 can be prefabricated using rack pipes or waste instrument pipes, etc., which are easy to obtain and low in cost.

[0031] Furthermore, in some embodiments, each limiting assembly 20 may include at least two limiting plates 21, and the at least two limiting plates 21 are spaced apart on the rod body 10 along the circumference of the rod body 10. Each limiting plate 21 has a certain length and extends on the rod body 10 along the axial direction of the rod body 10.

[0032] In the axial direction of the rod body 10 , one side of the limiting plate 21 faces the first end of the rod body 10 (also faces the connecting portion 11 ), and the other side faces the second end of the rod body 10 .

[0033] Typically, the two opposite ends of the clamp are bell mouths, and preferably, the side of the limit plate 21 facing away from the connecting portion 11 is a slope 211 corresponding to the bell mouth on the clamp. The setting of the slope 211 on the limit plate 21 guides the limit plate 21 into the clamp.

[0034] All edges and corners on the rod body 10 and the limiting assembly 20 are polished smooth to avoid hand injuries during use.

[0035] refer to Figure 1 In the first embodiment of the underwater clamping and rope threading device, each limiting assembly 20 includes two limiting plates 21, and the two limiting plates 21 are distributed on the rod body 10 at 180° intervals along the circumference of the rod body 10 and connected to the outer surface of the rod body 10.

[0036] refer to Figure 2 and Figure 3 In the second embodiment of the underwater clamping and threading device, each limiting assembly 20 includes four limiting plates 21, evenly spaced along the circumference of the rod body 10 and connected to the outer surface of the rod body 10. The angle between two adjacent limiting plates 21 is 90°. This embodiment ensures that the rod body 10 is fixed at the center of the clamp in all four directions through the limiting plates 21 engaging the inner wall of the clamp, providing greater stability compared to a configuration with two limiting plates 21.

[0037] refer to Figure 4 In the third embodiment of the underwater gripping and threading device, each retaining assembly 20 includes three retaining plates 21, evenly spaced along the circumference of the rod 10 and connected to the outer surface of the rod 10. The angle between two adjacent retaining plates 21 is 120°. This embodiment also ensures that the rod 10 is stably retained at the gripping center, providing greater stability than a configuration with two retaining plates 21.

[0038] refer to Figure 5 and Figure 6 In the fourth embodiment of the underwater clamping and threading device, each retaining assembly 20 includes at least one retaining ring 22, which is connected to the rod body 10 along its circumference. The retaining ring 22 cooperates with the inner wall of the clamp to stably retain the rod body 10 at the center of the clamp. The retaining ring 22 can be provided with a plurality of drainage holes to reduce water resistance.

[0039] When the underwater clamp rope threading device of the present invention is in use, a winch releases a traction rope connected to the threading portion 11 of the rod body 10, the rod body 10 is hoisted into the clamp, and the entire underwater clamp rope threading device is gradually lowered along the spaced clamps through the clamps. To ensure that the lowered underwater clamp rope threading device is in the arrangement direction of the clamps, the length of the rod body 10 should be equal to or greater than the sum of the length of one clamp and the distance between the clamp and another adjacent clamp. In this way, during the entire lowering process of the device, the rod body 10 can be located between two adjacent clamps. When the first end of the rod body 10 is located at the lower end bell mouth of the previous clamp, the second end of the rod body 10 simultaneously enters the upper end bell mouth of the next clamp.

[0040] Furthermore, the limiting assembly 20 is used to limit the position of the rod body 10 within the clamp. Therefore, the maximum distance between two adjacent sets of limiting assemblies 20 on the rod body 10 is equal to or greater than the distance between two adjacent clamps, so that when the rod body 20 is simultaneously inserted into two adjacent clamps, at least one set of limiting assemblies 20 in each clamp is used to limit the position of the rod body 10.

[0041] In one embodiment, the length of the rod body 10 is 6000 mm, the diameter of the rod body 10 is 50 mm, and the width of the limiting plate 21 or the limiting ring 22 is 140 mm.

[0042] The underwater clamp and rope threading device of the utility model is suitable for being used as a tool for threading a traction rope after installing the clamp of an underwater cable protection pipe. The method of use is as follows:

[0043] In good weather, thread a new towing rope through the connection 11 of the mast 10 and secure it with a knot. Using the lower deck and underdeck shelves at the pipe protection location, lower personnel into the grappling fixture. Slowly lower the underwater grappling fixture with the towing rope to the last grappling fixture. Then, use an ROV to bring the underwater grappling fixture out of the water and secure it to the platform to form a closed loop.

[0044] The above uses can provide the necessary prerequisites for submarine cable pulling work, while saving construction costs for the diving team and reducing project costs.

[0045] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An underwater clamping and rope threading device, characterized in that: It includes a rod body for lowering through the clamp and several limit components; The end portion of the first end of the rod body is provided with a connection portion for the traction rope to pass through; a plurality of the limiting components are arranged on the rod body at intervals along the axial direction of the rod body to limit the rod body at the center of the clamp.

2. The underwater clamping and rope threading device according to claim 1 is characterized in that: The end portion of the rod body opposite to the second end is conical.

3. The underwater clamping and rope threading device according to claim 1, characterized in that: Each of the limiting assemblies includes at least two limiting plates, and the at least two limiting plates are spaced apart and distributed on the rod along the circumference of the rod; Each of the limiting plates extends on the rod body along the axial direction of the rod body, and a side surface of the limiting plate facing away from the connecting portion is an inclined surface corresponding to the trumpet mouth on the clamp.

4. The underwater clamping and rope threading device according to claim 3 is characterized in that: Each of the limiting assemblies includes three limiting plates, which are evenly spaced along the circumference of the rod and connected to the outer surface of the rod.

5. The underwater clamping and rope threading device according to claim 3 is characterized in that: Each of the limiting assemblies includes four limiting plates, which are evenly spaced along the circumference of the rod and connected to the outer surface of the rod.

6. The underwater clamping and rope threading device according to claim 3, characterized in that: The width of the limiting plate is 140 mm.

7. The underwater clamping and rope threading device according to claim 1, characterized in that: Each of the limiting assemblies includes a limiting ring connected to the rod body around the circumference of the rod body.

8. The underwater clamping and rope threading device according to any one of claims 1 to 7, characterized in that: The maximum distance between two adjacent groups of the limiting components on the rod body is equal to or greater than the distance between two adjacent clamps.

9. The underwater clamping and rope threading device according to any one of claims 1 to 7, characterized in that: The length of the rod body is equal to or greater than the sum of the length of a clamp and the distance between the clamp and another adjacent clamp.

10. The underwater clamping and rope threading device according to claim 9, characterized in that: The length of the rod body is 6000 mm; the diameter of the rod body is 50 mm.

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