Soft steel arm connecting device of single point mooring system

By designing an adjustable flexible steel arm connection device, the problem of existing technologies being unable to adapt to the undulating sea surface environment was solved, and a stable connection between the floating production storage and offloading (FPSO) unit and the sea surface anchor point was achieved.

CN224104254UActive Publication Date: 2026-04-10SUZHOU YITONG SINGLE POINT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU YITONG SINGLE POINT TECH CO LTD
Filing Date
2025-06-10
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

The existing flexible steel arm connection structure cannot be adjusted according to the actual environment during use, making it unsuitable for installation in undulating sea environments.

Method used

A flexible steel arm connecting device was designed. The distance between the two connecting end seats is adjustable by the movable connection between the inner slider and the guide frame. Combined with the rotational connection between the movable connector and the connecting end seats, the adjustable movable connection between the floating production storage and offloading device and the sea surface anchor point is realized by the guiding movement of the threaded connecting rod and the rotating cap.

Benefits of technology

It enables stable installation of the flexible steel boom connection device in undulating sea environments, adapts to the undulating sea environment, and ensures stable connection between the floating production storage and offloading unit and the sea surface anchor point.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a soft steel arm connecting device of a single point mooring system, and relates to the technical field of soft steel arm connecting devices, the soft steel arm connecting device comprises two connecting end seats, the outer walls of one sides of the two connecting end seats are respectively provided with a guide frame and an inner connecting guide rod in a welding mode, and the inner connecting guide rod is connected with the guide frame in a welding mode. The inner connecting guide rod is movably connected with the guide frame in a sleeving manner; the internal connection sliding block is movably arranged in the guide frame, the internal connection sliding block and the internal connection guide rod are of an integrated structure, supporting rollers are arranged in grooves in the upper end and the lower end of the internal connection sliding block, and the internal connection sliding block is in rolling connection with the inner wall of the guide frame through the two supporting rollers; the problems that the stability of an existing soft steel arm connecting structure in the using process is improved through an arranged damping mechanism, but the connecting structure cannot be movably adjusted according to the field environment in the using process, so that the soft steel arm cannot adapt to the fluctuating environment of the sea surface to be installed are solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to soft steel arm connecting device technical field, concretely is a kind of soft steel arm connecting device of single-point mooring system. BACKGROUND

[0002] Single-point mooring system refers to the ocean engineering ship is moored to another fixed or floating structure by single-point form, ship can revolve around the structure 360 °, and park in the direction of minimum environmental force using wind vane effect, single-point mooring system is mainly used in offshore oil and gas exploitation, with fluid transfer function, the soft steel arm in single-point mooring system refers to a mooring mode, and floating production storage and offloading device is stably anchored in specified sea area by anchor chain.

[0003] For example, the announcement number is: CN215851734U (named a damping type soft steel arm connecting structure in single-point mooring system), including first connecting arm and second connecting arm, the end of the first connecting arm and the second connecting arm is hinged, the second connecting arm is provided with fan-shaped sealed damping cavity, the damping cavity is filled with damping liquid, the pivot end of the first connecting arm is provided with a push plate, the push plate is located in the damping cavity, the push plate can rotate along the center of the damping cavity with the rotation of the pivot, the push plate and the damping cavity are gap matched, a plurality of liquid leakage holes are arranged on the push plate, the end of the second connecting arm is provided with two parallel connecting blocks, the first connecting arm is hinged between the connecting blocks, the damping cavity is arranged in the connecting block, can greatly improve the reliability under the premise of guaranteeing normal use, effectively avoid the equipment or personnel bruise caused by the sudden drop of soft steel arm after the damage of power equipment.

[0004] The above-mentioned soft steel arm connecting structure improves the stability during use by setting the damping mechanism, but the connecting structure cannot be adjusted according to the actual environment during use, which leads to the problem that the soft steel arm cannot be installed to adapt to the fluctuating environment of sea surface, therefore, we provide a soft steel arm connecting device of single-point mooring system. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a soft steel arm connecting device of single-point mooring system to solve the problem that the existing soft steel arm connecting structure improves the stability during use by setting the damping mechanism, but the connecting structure cannot be adjusted according to the actual environment during use, which leads to the problem that the soft steel arm cannot be installed to adapt to the fluctuating environment of sea surface.

[0006] In order to realize the above object, the utility model provides the following technical scheme: a mild steel arm connecting device of single point mooring system, connecting end seat is provided with two, the outer wall of one side of two connecting end seats is respectively welded with guide frame and inner lead guide rod, and the inner lead guide rod is connected with the guide frame sleeve joint activity;

[0007] Further comprising:

[0008] The inner lead slider is movably arranged in the inner part of the guide frame, the inner lead slider is an integral structure with the inner lead guide rod, and support rollers are arranged in the upper end and the lower end recesses of the inner lead slider, and the inner lead slider is rotatably connected with the inner wall of the guide frame through the two support rollers;

[0009] The movable connector is arranged at one end of the two connecting end seats, and a top rack is welded to the upper end of the movable connector, a guide screw hole is arranged in the inner part of the top rack, a threaded connecting rod is movably arranged in the inner part of the guide screw hole, and a mounting connecting disc is arranged above the threaded connecting rod;

[0010] First and second through shaft holes are arranged in the inner parts of the movable connector and the connecting end seat respectively, and a through shaft is movably arranged in the inner parts of the first and second through shaft holes, and the movable connector is rotatably connected with the connecting end seat through the through shaft.

[0011] Preferably, a connecting rod seat is welded to the lower end of the mounting connecting disc, a limiting rotation groove is arranged in the inner part of the connecting rod seat, and a hooking rotating head is rotatably arranged in the inner part of the limiting rotation groove, and the hooking rotating head is an integral structure with the threaded connecting rod.

[0012] Preferably, outer edge sliding grooves are arranged on the two outer walls of the guide frame, and extension sliders are movably arranged in the inner parts of the two outer edge sliding grooves, and the two extension sliders are an integral structure with the inner lead slider.

[0013] Preferably, limiting end blocks are welded to one end of the two extension sliders, and the size of the limiting end blocks is greater than the caliber of the outer edge sliding grooves.

[0014] Preferably, guide holes are arranged on the two sides of the guide screw hole, the two guide holes are an integral structure with the top rack, lifting guide rods are movably arranged in the inner parts of the two guide holes, and the two lifting guide rods are an integral structure with the mounting connecting disc.

[0015] Preferably, a rotating cap is welded to the lower end of the threaded connecting rod, and the size of the rotating cap is greater than the caliber of the guide screw hole.

[0016] Preferably, limiting shaft discs are welded to the two ends of the through shaft, and the size of the limiting shaft discs is greater than the caliber of the first and second through shaft holes.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] The distance between the two connecting end seats can be adjusted, so as to adapt to the fluctuation environment of the sea surface to connect the floating production storage and offloading device and the sea surface anchor point, in the connecting process, through the rotating connection of the movable connector and the connecting end seat, the installation connecting disc is adjusted to the appropriate direction, so as to connect the floating production storage and offloading device and the sea surface anchor point, after the direction adjustment is completed, the threaded connecting rod is guided to move along the guide screw hole through the rotation of the rotating cap, and then the installation connecting disc is driven to move close to the connecting position of the floating production storage and offloading device and the sea surface anchor point, finally, the two installation connecting discs are connected with the floating production storage and offloading device and the sea surface anchor point through the installation of the fastening bolt, so that the adjustable and movable connection installation purpose is achieved, and the problem that the existing soft steel arm connecting structure cannot adapt to the fluctuation environment of the sea surface for installation through the setting of the damping mechanism to improve the stability in the use process is overcome. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view of the soft steel arm connecting device structure of the single point mooring system of the utility model;

[0020] Figure 2 It is an internal structure sectional view of the soft steel arm connecting device of the single point mooring system of the utility model;

[0021] Figure 3 It is an internal structure sectional view of the movable connector of the utility model;

[0022] Figure 4 It is an enlarged schematic view of the A part structure of the utility model;

[0023] Figure 5 It is an enlarged schematic view of the B part structure of the utility model

[0024] In the drawing: 1, connecting end seat; 2, guide frame; 3, inner connecting guide rod; 4, outer edge slide; 5, limit end block; 6, movable connector; 7, limit shaft disc; 8, top bracket seat; 9, installation connecting disc; 10, threaded connecting rod; 11, lifting guide rod; 12, rotating cap; 13, first shaft hole; 14, second shaft hole; 15, penetrating connecting shaft; 16, inner connecting sliding block; 17, supporting roller; 18, extension sliding block; 19, connecting rod seat; 20, penetrating guide hole; 21, guide screw hole; 22, limit rotating groove; 23, hooking rotating head. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0026] Please refer to Figures 1-5 The utility model provides a kind of soft steel arm connecting device of single point mooring system, including connecting end seat 1, two connecting end seats 1 are provided, and the outer wall of one side of two connecting end seats 1 is respectively welded with guide frame 2 and inner lead rod 3, and inner lead rod 3 is connected with guide frame 2 and is connected movably in sleeve connection;

[0027] Further comprising:

[0028] Inner slide 16 is movably arranged in the inside of guide frame 2, and inner slide 16 is an integral structure with inner lead rod 3, and the upper end and the lower end recess of inner slide 16 are provided with support roller 17, and inner slide 16 is connected with the inner wall of guide frame 2 by two support rollers 17 and is connected rollingly;

[0029] Movable connector 6 is arranged at one end of two connecting end seats 1, and the upper end of movable connector 6 is welded with top rack seat 8, and the inside of top rack seat 8 is provided with guide screw hole 21, and threaded connecting rod 10 is movably arranged in the inside of guide screw hole 21, and mounting connecting disc 9 is arranged above threaded connecting rod 10.

[0030] First through shaft hole 13 and second through shaft hole 14 are arranged in the inside of movable connector 6 and connecting end seat 1 respectively, and through shaft 15 is movably arranged in the inside of first through shaft hole 13 and second through shaft hole 14, and movable connector 6 is connected with connecting end seat 1 by through shaft 15 and is connected rotatably.

[0031] When using, the distance between two connecting end seats 1 can be adjusted movably by the guided movable connection of inner slide 16 and guide frame 2, so as to adapt to the fluctuation environment of sea surface to connect floating production storage and offloading device and sea anchor point, in the process of connection, the mounting connecting disc 9 is adjusted to the appropriate direction by the rotary connection of movable connector 6 and connecting end seat 1, so as to connect floating production storage and offloading device and sea anchor point, after the adjustment of direction is completed, threaded connecting rod 10 is guided and moved along guide screw hole 21 by rotating cap 15, and then mounting connecting disc 9 is moved to the connection position of floating production storage and offloading device and sea anchor point, and finally mounting fastening bolt connects two mounting connecting discs 9 with floating production storage and offloading device and sea anchor point respectively, so as to achieve the purpose of adjustable movable connection and installation.

[0032] Please refer to Figure 5 The lower end of mounting connecting disc 9 is welded with connecting rod seat 19, the inside of connecting rod seat 19 is provided with limiting rotation groove 22, limiting rotation groove 22 is rotatably provided with hooking rotating head 23, hooking rotating head 23 is an integral structure with threaded connecting rod 10, and connecting rod seat 19 welded at the lower end of mounting connecting disc 9 plays the role of auxiliary threaded connecting rod 10 and mounting connecting disc 9, please refer to Figure 1 And Figure 4The outer wall of the two sides of the guide frame 2 is provided with an outer sliding track 4, the inner part of the two outer sliding tracks 4 is movably provided with an extension sliding block 18, the two extension sliding blocks 18 are an integral structure with the inner connecting sliding block 16, the outer sliding track 4 provided on the outer wall of the two sides of the guide frame 2 plays a role of facilitating the movement of the extension sliding block 18 along the guide frame 2, please refer to Figure 1 and Figure 4 The end of the two extension sliding blocks 18 is welded with a limiting end block 5, the size of the limiting end block 5 is greater than the caliber of the outer sliding track 4, the limiting end block 5 welded on the end of the two extension sliding blocks 18 plays a role of assisting the inner connecting sliding block 16 in the guide frame 2, please refer to Figure 5 The two sides of the guide screw hole 21 are provided with a through guide hole 20, the two through guide holes 20 are an integral structure with the top frame seat 8, the inner part of the two through guide holes 20 is movably provided with a lifting guide rod 11, the two lifting guide rods 11 are an integral structure with the mounting connecting disc 9, the through guide hole 20 provided on the two sides of the guide screw hole 21 plays a role of facilitating the lifting guide rod 11 and the top frame seat 8 in the lifting guide connection, please refer to Figure 1 and Figure 5 The lower end of the screw connecting rod 10 is welded with a rotating cap 12, the size of the rotating cap 12 is greater than the caliber of the guide screw hole 21, the rotating cap 12 welded on the lower end of the screw connecting rod 10 plays a role of facilitating the reverse rotation of the screw connecting rod 10, please refer to Figure 3 The two ends of the through connecting shaft 15 are welded with a limiting shaft disc 7, the size of the limiting shaft disc 7 is greater than the caliber of the first through shaft hole 13 and the second through shaft hole 14, the limiting shaft disc 7 welded on the two ends of the through connecting shaft 15 plays a role of limiting and preventing the through connecting shaft 15 from being separated.

[0033] It is apparent for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A mild steel arm connecting device of a single point mooring system, comprising connecting end seats (1), two of which are provided with a guide frame (2) and an inner guide rod (3) respectively welded on one side of the outer wall of each of the two connecting end seats (1), and the inner guide rod (3) is movably connected with the guide frame (2) in a sleeved manner; characterized in that Further comprising: an inner sliding block (16) movably arranged inside the guide frame (2), which is an integral structure with the inner guide rod (3), and a support roller (17) is arranged in the upper end and lower end recess of the inner sliding block (16), and the inner sliding block (16) is rollingly connected with the inner wall of the guide frame (2) through the two support rollers (17); a movable connector seat (6) arranged at one end of the two connecting end seats (1), and a top rack seat (8) is welded on the upper end of the movable connector seat (6), a guide screw hole (21) is arranged in the inner part of the top rack seat (8), a threaded connecting rod (10) is movably arranged in the inner part of the guide screw hole (21), and an installation connecting disc (9) is arranged above the threaded connecting rod (10); a first through shaft hole (13) and a second through shaft hole (14) are arranged in the inner part of the movable connector seat (6) and the connecting end seat (1) respectively, and a through rotating shaft (15) is movably arranged in the inner part of the first through shaft hole (13) and the second through shaft hole (14), and the movable connector seat (6) is rotatably connected with the connecting end seat (1) through the through rotating shaft (15).

2. A soft arm connection device for a single point mooring system according to claim 1, characterized in that: A connecting rod seat (19) is welded on the lower end of the installation connecting disc (9), a limiting rotating groove (22) is arranged in the inner part of the connecting rod seat (19), a hooking rotating head (23) is rotatably arranged in the inner part of the limiting rotating groove (22), and the hooking rotating head (23) is an integral structure with the threaded connecting rod (10).

3. A soft steel arm connection device for a single point mooring system according to claim 1, characterized in that: An outer edge sliding channel (4) is arranged on the outer wall of each side of the guide frame (2), and an extension sliding block (18) is movably arranged in the inner part of each of the two outer edge sliding channels (4), and the two extension sliding blocks (18) are integral structures with the inner sliding block (16).

4. A soft arm connection device for a single point mooring system according to claim 3, characterized in that: A limiting end block (5) is welded on one end of each of the two extension sliding blocks (18), and the size of the limiting end block (5) is greater than the caliber of the outer edge sliding channel (4).

5. A soft steel arm connection device for a single point mooring system according to claim 1, characterized in that: Two through guide holes (20) are arranged on the two sides of the guide screw hole (21), the two through guide holes (20) are integral structures with the top rack seat (8), a lifting guide rod (11) is movably arranged in the inner part of each of the two through guide holes (20), and the two lifting guide rods (11) are integral structures with the installation connecting disc (9).

6. A soft arm connection device for a single point mooring system according to claim 1, characterized in that: A rotating cap (12) is welded on the lower end of the threaded connecting rod (10), and the size of the rotating cap (12) is greater than the caliber of the guide screw hole (21).

7. A soft steel arm connection device for a single point mooring system according to claim 1, characterized in that: Limiting shaft discs (7) are welded on the two ends of the through rotating shaft (15), and the size of the limiting shaft discs (7) is greater than the caliber of the first through shaft hole (13) and the second through shaft hole (14).

Citation Information

Patent Citations

  • Damping type soft steel arm connecting structure in single-point mooring system

    CN215851734U