Connecting rod for stinger of cable laying ship

Abstract

The utility model relates to a cable laying ship stinger connecting rod which comprises an outer connecting rod, an inner connecting rod, a connecting pin shaft, a locking nut and a telescopic oil cylinder. The outer connecting rod is provided with a pin shaft hole for being connected with the stinger and the inner and outer connecting rod; the inner connecting rod is provided with stinger connecting pin holes and three inner and outer connecting pin holes, and the three inner and outer connecting pin holes correspond to different stinger curvatures respectively; the connecting pin shaft is used for connecting the outer connecting rod and the inner connecting rod and is locked through the locking nut; the telescopic oil cylinders are installed on the two sides of the outer connecting rod and used for adjusting the relative positions of the inner connecting rod and the outer connecting rod so as to adjust the length of the connecting rods. Rapid, flexible and safe adjustment of the cable laying ship stinger connecting rod is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of cable-laying vessel technology, and in particular relates to a cable-laying vessel support frame connecting rod. Background Technology

[0002] In the field of marine engineering, cable-laying vessels are crucial equipment for laying submarine cables, optical fibers, and other cables. The cable tray, as a key component of the cable-laying vessel, is vital for ensuring the smooth progress of cable-laying operations through proper curvature adjustment. However, currently, there are a series of technical challenges and operational risks associated with adjusting the curvature of the cable tray on cable-laying vessels.

[0003] Traditionally, adjusting the curvature of a support frame requires dismantling all but the first section. This step is not only time-consuming and labor-intensive but also increases the complexity of offshore operations. Dismantling involves working at heights, presenting significant challenges and safety risks. Furthermore, the dismantled support frame must be reassembled, further increasing construction time and costs.

[0004] More importantly, after the cable tray is removed, it is necessary to reconnect the various monitoring sensor cables on the tray, including cameras, pressure sensors, sonar sensors, angle sensors, etc. Reconnecting and debugging these sensors is not only tedious but also requires extremely high precision and expertise. Improper connection or inaccurate debugging can lead to distorted sensor data, thereby affecting the accuracy and safety of the cable-laying operation.

[0005] Therefore, existing methods for adjusting the curvature of the support frame not only significantly reduce the efficiency of offshore construction but also increase construction risks. To solve this problem, there is an urgent need for a technical solution that can easily and quickly adjust the curvature of the support frame while ensuring the accuracy and reliability of sensor connections and adjustments. Utility Model Content

[0006] In view of the problems existing in the prior art, this utility model provides a cable-laying vessel cable support connecting rod that can easily and quickly adjust the curvature of the cable support.

[0007] This utility model is implemented as follows: a cable-laying vessel support frame connecting rod includes an outer connecting rod, an inner connecting rod, a connecting pin, a locking nut, and a telescopic hydraulic cylinder. The outer connecting rod has a pin hole for connecting to the support frame and the inner and outer connecting rods. The inner connecting rod has three pin holes, one for the support frame and one for the inner and outer connecting pins, each corresponding to a different curvature of the support frame. The connecting pin connects the outer connecting rod and the inner connecting rod and is locked in place by the locking nut. The telescopic hydraulic cylinder is installed on both sides of the outer connecting rod to adjust the relative position of the inner and outer connecting rods, thereby adjusting the length of the connecting rod.

[0008] More preferably, the outer connecting rod includes an outer connecting rod housing, a limiting component, and a stop; the limiting component moves the limiting slider by adjusting the length of two bolts on it, thereby pushing the inner connecting rod to adjust the relative position of the inner connecting rod in the outer connecting rod; the stop is disposed inside the outer connecting rod housing and cooperates with the inner stop of the inner connecting rod to prevent the inner connecting rod from coming out.

[0009] More preferably, the limiting component includes a limiting slider, a limiting slider seat, a nut, a bolt, and a cylindrical head bolt. The limiting component pushes the limiting slider along the limiting slider seat by adjusting the length of the bolt, thereby pushing the inner connecting rod to adjust the relative position of the inner connecting rod in the outer connecting rod. The cylindrical head bolt is fastened to the limiting slider to prevent the limiting slider from falling off.

[0010] More preferably, the limiting slider is provided with an oil nozzle for oil injection and lubrication.

[0011] More preferably, the inner connecting rod includes an inner connecting rod housing and an inner stop block; the inner stop block is divided into upper and lower parts, the lower part is welded to the housing, and the upper part is fixed to the lower part by bolts.

[0012] More preferably, the tail end of the connecting pin is threaded for engaging with a locking nut to achieve locking; the head end of the connecting pin is provided with a semi-circular shoulder for the baffle to press and fix.

[0013] More preferably, the telescopic cylinder is mounted on the telescopic cylinder mounting base on both sides of the outer connecting rod.

[0014] The advantages and technical effects of this utility model are as follows: This utility model provides a connecting rod for a cable-laying vessel's support frame. This connecting rod has significant technical innovation and practicality, greatly improving the efficiency and safety of offshore cable-laying operations. Through the ingenious design of components such as the outer connecting rod, inner connecting rod, connecting pin, locking nut, and telescopic cylinder, the length of the connecting rod can be flexibly adjusted, and the curvature of the support frame can be quickly adjusted.

[0015] Simplified operation process: This utility model avoids the cumbersome steps of dismantling multiple sections of the support frame and replacing the connecting rods when adjusting the curvature of the traditional support frame. The curvature can be changed simply by adjusting the length of the connecting rod, which greatly simplifies the operation process and saves time and labor costs.

[0016] Improved construction efficiency: Since there is no need to frequently dismantle and reinstall the support frame and its monitoring sensor connection cables, this utility model significantly reduces the time of offshore construction and improves the overall efficiency of cable laying operations.

[0017] Reduced construction risks: The number of times the support frame and its accessories need to be disassembled and reassembled is reduced, thereby reducing the risks during offshore construction and ensuring the safety of the workers.

[0018] High adaptability: The inner connecting rod is equipped with multiple pin holes corresponding to different curvatures of the support frame. Through precise adjustment by the telescopic cylinder, the connecting rod can adapt to various curvature requirements, enhancing the flexibility and adaptability of the support frame.

[0019] Robust and reliable structure: The components of the connecting rod are firmly connected by connecting pins and locking nuts. The limiting components and stop design inside the outer connecting rod effectively prevent the inner connecting rod from coming out, ensuring the stability and reliability of the connecting rod during use.

[0020] In summary, this utility model, through innovative design concepts and technical means, enables rapid, flexible, and safe adjustment of the connecting rod of the cable-laying vessel's support frame, bringing significant technical and economic benefits to offshore cable-laying operations. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the external connecting rod structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal connecting rod structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the limiting component structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the limiting component of this utility model.

[0026] Figure 6 This is a schematic diagram of the connecting pin structure of this utility model.

[0027] In the diagram: 1. Outer connecting rod; 1-1. Pin hole; 1-2. Outer connecting rod housing; 1-3. Limiting component; 1-4. Stop block; 1-5. Weight reduction hole; 1-6. Telescopic cylinder mounting base; 2. Inner connecting rod; 2-1. Support bracket connecting pin hole; 2-2. Inner and outer connecting pin holes; 2-2-1. First inner and outer connecting pin hole; 2-2-2. Second inner and outer connecting pin hole; 2-2-3. Third inner and outer connecting pin hole; 2-3. Inner connecting rod housing; 2-4. Inner stop block; 2-4-1. Lower part of inner stop block; 2-4-2. Upper part of inner stop block; 2-5. Bolt; 3. Connecting pin; 4. Locking nut; 5. Telescopic cylinder. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0029] Please see Figures 1 to 6 A cable-laying vessel support frame connecting rod includes an outer connecting rod 1, an inner connecting rod 2, a connecting pin 3, a locking nut 4, and a telescopic cylinder 5. The outer connecting rod has a pin hole 1-1 for connecting to the support frame and the inner and outer connecting rods. The inner connecting rod 2 has a support frame connecting pin hole 2-1 and inner and outer connecting pin holes 2-2, with a total of three inner and outer connecting pin holes, each corresponding to a different curvature of the support frame. The first inner and outer connecting pin hole 2-2-1 corresponds to one curvature; the second inner and outer connecting pin hole 2-2-2 corresponds to another curvature; and the third inner and outer connecting pin hole 2-2-3 corresponds to yet another curvature. The connecting pin 3 connects the outer connecting rod and the inner connecting rod and is locked by the locking nut 4. The telescopic cylinder 5 is installed on both sides of the outer connecting rod and is used to adjust the relative position of the inner and outer connecting rods, thereby adjusting the length of the connecting rod.

[0030] The outer connecting rod 1 includes an outer connecting rod housing 1-2, a limiting component 1-3, and a stop block 1-4. The limiting component 1-3 consists of a limiting slider 1-3-1, a limiting slider seat 1-3-2, a nut 1-3-3, a bolt 1-3-4, and a cylindrical head bolt 1-3-5. The limiting component 1-3 pushes the limiting slider 1-3-1 along the limiting slider seat 1-3-2 by adjusting the length of the bolt 1-3-4 on it, thereby pushing the inner connecting rod 2. This is used to adjust the relative position of the inner connecting rod in the outer connecting rod 2. The cylindrical head bolt 1-3-5 is fastened to the limiting slider 1-3-1 to prevent the limiting slider from falling off.

[0031] The limiting slider is equipped with an oil nozzle, and the oil nozzle 1-3-6 is used for oil injection and lubrication.

[0032] The stops 1-4 are located inside the outer connecting rod housing and cooperate with the inner stop of the inner connecting rod to prevent the inner connecting rod from coming out.

[0033] The inner connecting rod 2 includes an inner connecting rod housing 2-3 and an inner stop block 2-4. The inner stop block is divided into upper and lower parts: a lower part 2-4-1 and an upper part 2-4-2. The lower part 2-4-1 is welded to the housing, and the upper part 2-4-2 is fixed to the lower part by bolts 2-5. When installing the connecting rod, the inner connecting rod is first placed into the outer connecting rod, and then the upper part of the inner stop block is placed in the corresponding installation position through the weight reduction hole 1-5 of the outer connecting rod and fixed with bolts. When removing the connecting rod, the upper part of the stop block is first removed through the weight reduction hole, and then the inner connecting rod housing is removed.

[0034] The connecting pin 3 has a threaded end for locking with the locking nut 4, and a semi-circular shoulder at the beginning for the baffle 3-1 to be tightened and fixed by the bolt 3-2. When adjusting the curvature of the support frame, first use a wrench to remove the locking nut 4 of the connecting pin 3, then use a wrench to remove the fastening bolt 3-2 of the baffle 3-1, remove the baffle 3-1, take out the connecting pin 3, and then use the hydraulic cylinder to move the inner connecting rod so that the pin holes corresponding to different curvatures on the inner connecting rod are aligned with the pin holes of the outer connecting rod. Then insert the pin and fix it with the nut.

[0035] The telescopic cylinder 5 is mounted on the telescopic cylinder mounting seats 1-6 on both sides of the outer connecting rod. The telescopic movement drives the inner connecting rod to move within the outer connecting rod, thereby precisely adjusting the length of the connecting rod to meet the needs of different support frame curvatures.

[0036] The installation of the cable-laying vessel's manhole cover connecting rod involves several key steps to ensure the stability and flexibility of the manhole cover under complex sea conditions. First, during the installation preparation phase, it is essential to ensure all components are complete and in good condition, and to select appropriate inner and outer connecting pin hole positions based on the curvature requirements of the manhole cover. Next, the inner connecting rod is installed by placing the upper part of the inner stop block in the corresponding position through the weight-reducing holes of the outer connecting rod and securing it with bolts, ensuring the inner connecting rod will not come loose.

[0037] Subsequently, the connecting pin is installed and locked with a lock nut to ensure a secure and reliable connection between the outer and inner connecting rods. When adjusting the curvature of the support frame, the telescopic movement of the hydraulic cylinder moves the inner connecting rod, aligning the inner and outer connecting pin holes, and then inserting the pin to secure it.

[0038] Finally, a comprehensive inspection of the entire connecting rod system was conducted to confirm that all components were securely connected without any looseness, and to ensure that the support rack could operate stably with the support of the connecting rods.

[0039] The entire usage process demonstrates the ingenuity and practicality of the connecting rod design. Through simple installation and adjustment steps, the curvature of the cable tray can be quickly adjusted to adapt to different seabed topography and cable laying requirements, providing efficient and stable technical support for offshore cable laying operations.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cable-laying vessel stinger connection rod, characterized in that, It comprises an outer connecting rod, an inner connecting rod, a connecting pin shaft, a locking nut and a telescopic oil cylinder; the outer connecting rod is provided with a pin shaft hole for connecting with a pipe support and the inner and outer connecting rods; the inner connecting rod is provided with a pipe support connecting pin shaft hole and an inner and outer connecting pin shaft hole, the inner and outer connecting pin shaft hole has three holes corresponding to different pipe support curvatures; the connecting pin shaft is used for connecting the outer connecting rod and the inner connecting rod and is locked by the locking nut; the telescopic oil cylinder is installed on both sides of the outer connecting rod and is used for adjusting the relative position of the inner and outer connecting rods so as to adjust the length of the connecting rod.

2. A connection rod for a cable-laying vessel stinger, according to claim 1, characterised in that, The outer connecting rod comprises an outer connecting rod box, a limiting component and a stop block; the limiting component is used for adjusting the relative position of the inner connecting rod in the outer connecting rod; the stop block is arranged inside the outer connecting rod box and cooperates with the inner stop block of the inner connecting rod to prevent the inner connecting rod from being pulled out.

3. A connection rod for a cable-laying vessel stinger according to claim 2, wherein, The limiting component comprises a limiting sliding block, a limiting sliding block seat, a nut, a bolt and a cylindrical head bolt; the limiting component is used for adjusting the relative position of the inner connecting rod in the outer connecting rod by adjusting the length of the bolt to push the limiting sliding block to move along the limiting sliding block seat and then push the inner connecting rod; the cylindrical head bolt is fastened to the limiting sliding block to prevent the limiting sliding block from falling off.

4. A connection rod for a cable-laying vessel stinger support according to claim 3, wherein, An oil nozzle is arranged on the limiting sliding block for oil injection and lubrication.

5. A connection rod for a cable-laying vessel stinger support according to claim 1, wherein, The inner connecting rod comprises an inner connecting rod box and an inner stop block; the inner stop block is divided into upper and lower parts, the lower part is welded to the box and the upper part is fixed to the lower part by a bolt.

6. A connection rod for a cable-laying vessel stinger support according to claim 1, wherein, The tail end of the connecting pin shaft is provided with a thread for cooperating with the locking nut to realize locking, and the head end of the connecting pin shaft is provided with a semicircular shaft shoulder for blocking plate fixation to realize pin shaft fastening and prevent the pin shaft from falling off.

7. A connection rod for a cable-laying vessel stinger support according to claim 1, wherein, The telescopic oil cylinder is installed on the telescopic oil cylinder mounting seat on both sides of the outer connecting rod.

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