Submarine pipe section dismounting device

Abstract

This utility model relates to the field of submarine tube section disassembly and assembly technology, and discloses a submarine tube section disassembly and assembly device, including a sleeve and a lever. The first end of the sleeve is provided with a first opening and a slot. The second end of the sleeve is provided with a positioning rod, and the positioning rod is also provided with a positioning wing. The lever has a mounting cavity at its first end, and a positioning groove is provided on the side wall of the first end of the mounting cavity. A positioning component is provided, which can be detachably passed through the lever and the positioning rod in sequence along the radial direction of the positioning rod. During the disassembly and assembly process, the watertight cable outlet end inside the cabin can be smoothly inserted and accommodated in the sleeve, avoiding interference of the watertight cable outlet end with the rotation of the sleeve. Through the cooperation of the positioning rod and the mounting cavity at the first end of the lever, combined with the structural coordination of the positioning wing and the positioning groove, stable torque transmission is achieved. When the clamping nut is rusted and difficult to turn due to seawater immersion, the positioning component can be inserted. The positioning component passes through the lever and the positioning rod in sequence, which increases the maximum torque that the tool can withstand.

Description

Technical Field

[0001] This utility model relates to the field of tube section disassembly and assembly technology, and in particular to a submarine tube section disassembly and assembly device. Background Technology

[0002] Watertight cable systems are a critical component of submarine power and communication systems, and their watertight performance directly affects the submarine's navigation safety. The cup-shaped tube section, as a key connecting component for watertight cables passing through the pressure hull, is crucial for maintaining watertight performance through its installation and disassembly quality. The cup-shaped tube section is installed on the submarine's pressure hull, as shown in the appendix to this application. Figure 1 As shown, the two ends of the watertight cable pass through cup-shaped pipe sections, connecting the internal and external equipment. The watertight cable for the internal section connects to the internal equipment, while the watertight cable for the external section connects to the external equipment. Statistics show that submarines designed in the 1980s contained over 130 cup-shaped pipe sections. These components may require timely maintenance and repair during submarine service due to aging, leaks, or other reasons. Currently, submarine maintenance personnel mainly use common tools such as wrenches and screwdrivers to disassemble and assemble cup-shaped pipe sections. However, the internal space of a submarine is extremely confined, with densely packed pipes and cables, severely limiting the working environment. In practice, maintenance personnel must navigate around numerous pipes and cables in a confined space, sometimes even removing the clamping nuts that obstruct the connection of equipment and pipes to the cup-shaped pipe sections for disassembly and assembly.

[0003] For disassembling screws in confined spaces, existing technologies assist in disassembly by adding an extension rod to the socket. For example, patent application No. 201711198428.1 discloses a quick-rotating manual socket wrench with an extension rod. The front end of the main rod is provided with a round head, and the front end of the round head is provided with a square head. The square head is used to install and remove bolts. However, when the above-mentioned quick-rotating manual socket wrench with an extension rod is applied to the disassembly and assembly of submarine cup-shaped pipe sections, the square head cannot be fitted into the clamping nut because the watertight cable extends from the end of each cup-shaped pipe section, thus preventing the disassembly and assembly of the cup-shaped pipe section from being performed. Utility Model Content

[0004] The technical problem this utility model aims to solve is that, because the outlet end of the watertight cable extends beyond the end of each cup-shaped pipe section, ordinary tools cannot effectively apply force in the longitudinal direction; conventional socket wrenches also cannot be fitted into the clamping nut due to the obstruction of the outlet end of the watertight cable, thus making it impossible to perform the disassembly and assembly of the cup-shaped pipe section.

[0005] To solve the above-mentioned technical problems, this utility model provides a submarine tube section disassembly and assembly device, comprising: The sleeve has a first opening at its first end and a slot. The first opening contains a disassembly part for matching with the clamping nut of the pipe section, through which the outlet end of the water-tight cable passes. The second end of the sleeve has a positioning rod with a positioning wing. The force-adding rod has a mounting cavity at its first end, and the positioning rod is detachably inserted into the mounting cavity along the axial direction. The first end sidewall of the mounting cavity has a positioning groove with a second opening, through which the positioning wing is fitted and inserted. The positioning element is detachably inserted through the force-adding rod and the positioning rod in sequence along the radial direction of the positioning rod.

[0006] Preferably, the side wall of the force-adding rod is provided with a first threaded through hole, and a positioning bolt is installed in the first threaded through hole, with the end of the positioning bolt abutting against the outer side wall of the positioning rod.

[0007] Preferably, the mounting cavity of the force-adding rod is provided with at least two positioning rings spaced apart, and each positioning ring has a through hole that matches the cross-sectional shape of the positioning rod.

[0008] Preferably, at least one positioning ring has a second threaded through hole on its side wall corresponding to the first threaded through hole, and the positioning bolt passes through the first threaded through hole and the second threaded through hole in sequence and then abuts against the outer side wall of the positioning rod.

[0009] Preferably, the positioning wing is trapezoidal in shape.

[0010] Preferably, the positioning element is a positioning pin, the side wall of the force-applying rod has a first pin hole, and the side wall of the positioning rod has a second pin hole for communicating with the first pin hole; the positioning pin is inserted into the first pin hole and the second pin hole in sequence.

[0011] Preferably, the sleeve includes an open hexagonal box, a transition plate, and a positioning rod that are fixedly connected sequentially from the first end to the second end; the disassembly part is provided at the first end of the open hexagonal box, and the slot is provided on the side wall of the open hexagonal box; the second end of the transition plate is provided with a connecting blind hole, and the first end of the positioning rod is provided with a connecting rod that matches the connecting blind hole.

[0012] Preferably, the first end of the transition plate is provided with a bevel.

[0013] Preferably, it also includes a handle, and the second end of the extension rod is provided with a threaded mounting hole, and the handle is threadedly connected to the threaded mounting hole.

[0014] Preferably, a bearing ring is provided on the periphery of the threaded mounting hole.

[0015] Compared with the prior art, the preferred embodiment of this utility model of a submarine tube section disassembly and assembly device has the following advantages: The submarine tube section disassembly and assembly device of this preferred embodiment features a slot on the sleeve for the watertight cable outlet to pass through. This allows the watertight cable outlet to smoothly enter and be accommodated within the sleeve during disassembly and assembly, effectively preventing interference from the cable outlet on the sleeve's rotation. The sleeve's positioning rod and the mounting cavity at the first end of the extension rod, combined with the structural synergy of the positioning wing and the positioning slot, achieve stable torque transmission, improving operational reliability and efficiency. Furthermore, the sleeve can be interchangeably connected to the mounting cavity at the first end of the extension rod via the positioning rod, facilitating quick replacement of sleeves of corresponding specifications for different types of clamping nuts, thus improving the tool's versatility and applicability. When the clamping nut becomes rusted and difficult to tighten due to seawater immersion, a positioning element can be inserted. This element passes sequentially through the extension rod and the positioning rod, achieving direct rigid torque transmission, significantly increasing the maximum torque the tool can withstand. This prevents loosening of connections or component damage due to stress concentration under high load conditions, improving the tool's reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the submarine tube section disassembly and assembly device provided in a preferred embodiment of the present invention in use. Figure 2 This is a three-dimensional structural schematic diagram of the submarine tube section disassembly and assembly device provided in a preferred embodiment of the present invention; Figure 3 This is a front view (partial cross-sectional view) of the submarine tube section disassembly and assembly device provided in a preferred embodiment of this utility model. Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the sleeve structure of the submarine tube section disassembly and assembly device provided in a preferred embodiment of the present invention; Figure 6 This is a schematic diagram of the hexagonal structure inside the opening of the sleeve of the submarine tube section disassembly and assembly device provided in a preferred embodiment of the present invention; Figure 7 This is a schematic diagram of the transition plate structure of the sleeve of the submarine tube section disassembly and assembly device provided in a preferred embodiment of the present invention; Figure 8 yes Figure 7 A schematic diagram of direction A; Figure 9 This is a schematic diagram of the positioning wing structure of the sleeve of the submarine tube section disassembly and assembly device provided in a preferred embodiment of the present invention; Figure 10 This is a first-view structural schematic diagram (partial sectional view) of the positioning rod of the sleeve of the submarine tube section disassembly and assembly device provided in a preferred embodiment of the present invention. Figure 11This is a second-view structural diagram of the positioning rod of the sleeve of the submarine tube section disassembly and assembly device provided in a preferred embodiment of the present invention; Figure 12 The preferred embodiment of this utility model provides a positioning sleeve for the submarine tube section disassembly and assembly device. rod Partial top view of the structure; Figure 13 This is a first-view structural schematic diagram (partial sectional view) of the force bar of the submarine tube section disassembly and assembly device provided in a preferred embodiment of the present invention. Figure 14 This is a second-view structural diagram of the force bar of the submarine tube section disassembly and assembly device provided in a preferred embodiment of the present invention; Figure 15 This is a schematic diagram of the positioning ring structure of the submarine tube section disassembly and assembly device provided in a preferred embodiment of this utility model; Figure 16 This is a side view of the positioning ring of the submarine tube section disassembly and assembly device provided in a preferred embodiment of the present invention; Figure 17 This is a side view of the load-bearing ring of the submarine tube section disassembly and assembly device provided in a preferred embodiment of this utility model.

[0017] In the diagram: 1. Sleeve; 11. Opening hexagonal inner hole; 111. Slot; 112. Disassembly / assembly section; 12. Transition plate; 121. Connecting blind hole; 122. Bevel section; 13. Positioning rod; 131. Second pin hole; 132. Connecting rod; 14. Positioning wing; 2. Force-applying rod; 21. Mounting cavity; 22. Positioning groove; 23. First threaded through hole; 24. First pin hole; 25. Threaded mounting hole; 3. Handle; 4. Positioning bolt; 5. Positioning ring; 51. Through hole; 52. Second threaded through hole; 6. Bearing ring; 7. Watertight cable outlet; 8. Cup-shaped pipe section; 9. Compression nut; 10. Pressure-resistant housing (partial). Detailed Implementation

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0019] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be called "second" information, and similarly, "second" information can also be called "first" information.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1 to 16 As shown, a preferred embodiment of the present invention provides a submarine tube section disassembly and assembly device, comprising a sleeve 1, a first opening at the first end of the sleeve 1, a slot 111, and a disassembly and assembly part 112 for matching with the clamping nut 9 of the tube section, through which the watertight cable outlet end 7 passes; a positioning rod 13 at the second end of the sleeve 1, and a positioning wing 14 on the positioning rod 13; a force-adding rod 2, the first end of the force-adding rod 2 having an installation cavity 21, the positioning rod 13 being detachably inserted into the installation cavity 21 along the axial direction, a positioning groove 22 being opened on the side wall of the first end of the installation cavity 21, the positioning groove 22 having a second opening, the positioning wing 14 being matched and inserted into the positioning groove 22 from the second opening; and a positioning member, which is detachably inserted through the force-adding rod 2 and the positioning rod 13 in sequence along the radial direction of the positioning rod 13.

[0023] The submarine tube section disassembly and assembly device of this preferred embodiment features a slot 111 on the sleeve 1 through which the watertight cable outlet 7 passes. This allows the watertight cable outlet 7 to smoothly enter and be accommodated within the sleeve 1 during disassembly and assembly, effectively preventing interference from the watertight cable outlet 7 on the rotation of the sleeve 1. Through the cooperation of the positioning rod 13 of the sleeve 1 and the first end mounting cavity 21 of the force-adding rod 2, combined with the structural coordination of the positioning wing 14 and the positioning groove 22, stable torque transmission is achieved, improving the reliability and efficiency of operation. Furthermore, the sleeve 1... The positioning rod 13 is replaceably connected to the mounting cavity 21 at the first end of the force-applying rod 2, which facilitates quick replacement of the corresponding sleeve 1 according to different models of clamping nuts 9, improving the versatility and applicability of the tool. When the clamping nut 9 is rusted and difficult to turn due to seawater immersion, a positioning element can be inserted. The positioning element passes through the force-applying rod 2 and the positioning rod 13 in sequence, realizing the direct rigid transmission of torque, which significantly improves the maximum torque that the tool can withstand, avoids loosening of the connection or damage of parts due to stress concentration under high load conditions, and improves the reliability of the tool.

[0024] Specifically, the side wall of the force-adding rod 2 is provided with a first threaded through hole 23, and a positioning bolt 4 is installed in the first threaded through hole 23. The end of the positioning bolt 4 abuts against the outer wall of the positioning rod 13. The positioning bolt 4 in the first threaded through hole 23 abuts against the outer wall of the positioning rod 13, ensuring that the sleeve 1 and the force-adding rod 2 are firmly connected, preventing loosening or falling off when torque is applied, and significantly enhancing the stability of the tool under complex working conditions.

[0025] Specifically, at least two positioning rings 5 ​​are spaced apart in the mounting cavity 21 of the force-adding rod 2, and each positioning ring 5 has a through hole 51 that matches the cross-sectional shape of the positioning rod 13. Compared with designing the mounting cavity 21 directly as a continuous channel that matches the size of the positioning rod 13, the multiple spaced positioning rings 5 ​​form discrete support points, so that the positioning rod 13 has two support points, and the sleeve 1 will not swing at a large angle under the constraint of two points.

[0026] Specifically, at least one positioning ring 5 has a second threaded through hole 52 on its side wall corresponding to the first threaded through hole 23. The positioning bolt 4 passes through the first threaded through hole 23 and the second threaded through hole 52 in sequence and then abuts against the outer side wall of the positioning rod 13. The first threaded through hole 232 and the second threaded through hole 52 together form a connecting threaded channel, which ensures that the positioning bolt 4 can pass directly through the positioning ring 5 along the straight channel and accurately abut against the outer side wall of the positioning rod 13, effectively avoiding the problem of poor fastening caused by misalignment of the positioning bolt 4.

[0027] Specifically, the positioning rod 13 has a square cross-section, which allows the positioning rod 13 and the mounting cavity 21 of the force-applying rod 2 to form a precise surface contact fit. This effectively prevents relative rotation between the sleeve 1 and the force-applying rod 2 during torque transmission, ensuring stable and reliable torque transmission. Compared to a circular cross-section, the square cross-section provides four contact surfaces, significantly increasing the contact area and friction. This not only improves the tool's torsional strength under high load conditions but also allows for the application of greater torque in confined spaces without slippage. It is particularly suitable for emergency situations requiring high-strength disassembly and assembly, such as when the pressure nut inside a submarine is rusted. This greatly improves the tool's operational reliability and work efficiency.

[0028] Specifically, the size of the positioning wing 14 is larger than the size of the positioning groove 22, so that the end of the positioning wing 14 can protrude from the positioning groove 22. When torque is applied, the protruding part can abut against the first end face of the force-adding rod 2, effectively sharing and transmitting torque, avoiding stress concentration at a single connection point, thereby enhancing the stability and torsional resistance of the connection between the sleeve 1 and the force-adding rod 2, and preventing the connection from loosening or being damaged due to excessive force during disassembly and assembly.

[0029] Specifically, the cross-section of the positioning wing 14 is trapezoidal; the trapezoidal positioning wing 14 has a larger area at the connection with the sleeve 1, which can distribute the concentrated load more evenly to the body of the sleeve 1, reduce the local stress at the connection, and prevent fatigue damage or fracture caused by stress concentration. The trapezoidal positioning wing 14 not only serves as a key component for torque transmission, but its own structure also plays a key reinforcing role, equivalent to a built-in "reinforcing rib".

[0030] Specifically, the positioning component is a positioning pin (not shown in the figure). The side wall of the force-applying rod 2 has a first pin hole 24, and the side wall of the positioning rod 13 has a second pin hole 131 for communicating with the first pin hole 24. The positioning pin is inserted into the first pin hole 24 and the second pin hole 131 in sequence.

[0031] The first pin hole 24 on the side wall of the extension rod 2 and the second pin hole 131 on the side wall of the positioning rod 13 form a through positioning channel. When the clamping nut 9 is rusted and difficult to turn due to seawater immersion, an additional torque transmission path can be established by inserting the positioning pin, which significantly improves the maximum torque that the tool can withstand, avoids loosening of the connection or damage of the parts due to stress concentration under high load conditions, and improves the reliability of the tool.

[0032] Specifically, the sleeve 1 includes an open hexagonal 11, a transition plate 12, and a positioning rod 13, which are fixedly connected sequentially from the first end to the second end; the disassembly part 112 is provided at the first end of the open hexagonal 11, and the slot 111 is provided on the side wall of the open hexagonal 11; the second end of the transition plate 12 is provided with a connecting blind hole 121, and the first end of the positioning rod 13 is provided with a connecting rod 132 that matches the connecting blind hole 121; the open hexagonal 11 and the positioning rod 13 are connected as one unit by setting the transition plate 12.

[0033] Specifically, the hexagonal opening 11, the transition plate 12, and the positioning rod 13 are welded together.

[0034] Specifically, the first end of the transition plate 12 is provided with a bevel portion 122. The bevel portion 122 at the first end of the transition plate creates a welding gap between the transition plate 12 and the hexagonal opening 11, allowing the welding rod to penetrate the gap for full welding, effectively ensuring the welding penetration and weld quality. Compared with direct butt welding on a flat surface, the bevel design significantly increases the welding contact area, allowing the molten metal to fill the connection area evenly, forming a stronger and more uniform weld, avoiding welding defects such as incomplete welding and incomplete penetration. This optimized welding structure not only greatly improves the mechanical strength and fatigue resistance of the connection between the hexagonal opening 11 and the transition plate 12.

[0035] Specifically, it also includes a handle 3, and the second end of the lever 2 is provided with a threaded mounting hole 25, and the handle 3 is threadedly connected to the threaded mounting hole 25; the handle 3 is connected to the threaded mounting hole 25 at the second end of the lever 2 by a threaded connection, realizing the modular assembly of the tool, which not only facilitates the quick installation and disassembly of the handle 3, improving the storage convenience and carrying efficiency of the tool, but also ensures the stability and reliability of the connection; at the same time, the handle 3 extends the lever arm length, making full use of the lever principle, so that the operator can generate a large torque with a small force.

[0036] Specifically, a bearing ring 6 is provided around the threaded mounting hole 25; the bearing ring 6 is used to strengthen the stress on the connecting rod 132 and the handle 3 when in use, effectively dispersing the concentrated stress generated when a large torque is applied, and avoiding deformation or breakage of the threaded connection due to stress concentration.

[0037] Specifically, the disassembly part 112 at the first end of the open hexagonal 11 is matched with the clamping nut.

[0038] The working process of this utility model is as follows: This submarine pipe section disassembly and assembly device is equipped with sleeves 1 of various specifications to ensure that it can adapt to different models of clamping nuts 9. The operator selects the appropriate size sleeve 1 from the sleeve 1 kit according to the specifications of the clamping nut 9 of the cup-shaped pipe section 8 to be disassembled and assembled; the positioning rod 13 at the second end of the selected sleeve 1 is aligned with the mounting cavity 21 at the first end of the extension rod 2 and inserted, so that the square rod part of the positioning rod 13 enters the mounting cavity 21, and at the same time the positioning wing 14 is inserted into the positioning groove 22 at the first end of the extension rod 2. At this time, the end of the positioning wing 14 will protrude out of the positioning groove 22 and abut against the first end face of the extension rod 2. Then, the positioning bolt 4 is screwed into the first threaded through hole 23 on the side wall of the extension rod 2, so that it abuts against the outer side wall of the positioning rod 13, ensuring that the sleeve 1 and the extension rod 2 are firmly connected. If a higher strength connection is required, the positioning pin can be inserted into the first pin hole 24 of the extension rod 2 and the second pin hole 131 of the positioning rod 13 in sequence to form a rigid connection.

[0039] The handle 3 is screwed into the threaded mounting hole 25 at the second end of the extension rod 2 via a threaded connection. The bearing ring 6 on the periphery of the threaded mounting hole 25 can effectively disperse the stress generated when torque is applied, enhancing the connection strength. The installation of the handle 3 extends the lever arm length, allowing the operator to generate a larger torque with a smaller force.

[0040] Insert the assembled tool into the narrow space of the submarine, aligning the hexagonal 11 inside the opening at the first end of the sleeve 1 with the clamping nut 9 of the cup-shaped tube section 8; since the side wall of the sleeve 1 has a slot 111, the watertight cable outlet 7 inside the compartment can be smoothly inserted into the sleeve 1, avoiding interference of the cable with the rotation of the sleeve 1.

[0041] Rotating the handle 3 clockwise applies torque to the clamping nut 9 through the disassembly and assembly part 112 at the first end of the sleeve 1, thereby tightening the clamping nut 9; rotating the handle 3 counterclockwise allows the clamping nut 9 to be disassembled.

[0042] During torque transmission, the square fit between the positioning rod 13 and the mounting cavity 21 of the force-applying rod 2 forms precise surface contact, and the structural synergy between the positioning wing 14 and the positioning groove 22 ensures stable torque transmission. The trapezoidal cross-section positioning wing 14 acts as a "reinforcing rib," evenly distributing the load to the sleeve 1 body and preventing stress concentration.

[0043] When the clamping nut 9 becomes rusted and difficult to turn due to seawater immersion, a locating pin can be inserted to establish an additional torque transmission path. The locating pin passes through the first pin hole 24 and the second pin hole 131 to form a through channel, realizing direct rigid transmission of torque, significantly improving the maximum torque that the tool can withstand, and avoiding loose connections or component damage.

[0044] In summary, the submarine tube section disassembly and assembly device of the preferred embodiment of this utility model, by creating a slot on the sleeve for the watertight cable outlet to pass through, allows the watertight cable outlet inside the compartment to smoothly enter and be accommodated within the sleeve during disassembly and assembly, effectively avoiding interference from the watertight cable outlet to the sleeve's rotation. Through the cooperation of the sleeve's positioning rod and the mounting cavity at the first end of the extension rod, combined with the structural synergy of the positioning wing and the positioning slot, stable torque transmission is achieved, improving operational reliability and efficiency. Furthermore, the sleeve can be interchangeably connected to the mounting cavity at the first end of the extension rod via the positioning rod, facilitating quick replacement of sleeves of corresponding specifications according to different types of clamping nuts, improving the tool's versatility and applicability. When the clamping nut becomes rusted and difficult to tighten due to seawater immersion, a positioning element can be inserted. The positioning element passes sequentially through the extension rod and the positioning rod, achieving direct rigid torque transmission, significantly increasing the maximum torque the tool can withstand, and preventing loosening of connections or component damage due to stress concentration under high load conditions, thus improving the tool's reliability.

[0045] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A submarine pipe section dismounting device, characterized in that include: A sleeve (1) has a first opening at its first end and a slot (111) in the first opening. A disassembly part (112) for matching with the clamping nut (9) of the pipe section is provided in the first opening. The slot (111) allows the outlet end (7) of the watertight cable to pass through. A positioning rod (13) is provided at the second end of the sleeve (1). A positioning wing (14) is also provided on the positioning rod (13). A force-adding rod (2) has a mounting cavity (21) at its first end. A positioning rod (13) is detachably inserted into the mounting cavity (21) along the axial direction. A positioning groove (22) is provided on the side wall of the first end of the mounting cavity (21). The positioning groove (22) has a second opening. The positioning wing (14) is fitted into the positioning groove (22) from the second opening. The positioning element is detachably passed through the force-applying rod (2) and the positioning rod (13) in sequence along the radial direction of the positioning rod (13).

2. A submarine pipe section handling apparatus according to claim 1, characterised in that, The side wall of the force-adding rod (2) is provided with a first threaded through hole (23), and a positioning bolt (4) is installed in the first threaded through hole (23). The end of the positioning bolt (4) abuts against the outer side wall of the positioning rod (13).

3. A submarine pipe section handling apparatus according to claim 2, wherein, At least two positioning rings (5) are provided at intervals in the mounting cavity (21) of the force-adding rod (2), and each positioning ring (5) has a through hole (51) that matches the cross-sectional shape of the positioning rod (13).

4. A submarine pipe section handling apparatus according to claim 3, wherein At least one of the positioning rings (5) has a second threaded through hole (52) on its side wall that corresponds to the first threaded through hole (23). The positioning bolt (4) passes through the first threaded through hole (23) and the second threaded through hole (52) in sequence and then abuts against the outer side wall of the positioning rod (13).

5. A submarine pipe section handling apparatus according to claim 1, wherein The positioning wing (14) is trapezoidal in shape.

6. A submarine pipe section handling apparatus according to claim 1, wherein The positioning component is a positioning pin. The side wall of the force-adding rod (2) is provided with a first pin hole (24), and the side wall of the positioning rod (13) is provided with a second pin hole (131) for communicating with the first pin hole (24). The positioning pin is inserted into the first pin hole (24) and the second pin hole (131) in sequence.

7. A submarine pipe section handling apparatus according to claim 1, wherein The sleeve (1) includes an open hexagonal plate (11), a transition plate (12) and a positioning rod (13) that are fixedly connected in sequence from the first end to the second end. The disassembly / assembly part (112) is provided at the first end of the hexagonal opening (11), and the slot (111) is provided on the side wall of the hexagonal opening (11). The second end of the transition plate (12) is provided with a connecting blind hole (121), and the first end of the positioning rod (13) is provided with a connecting rod (132) that matches the connecting blind hole (121).

8. A submarine pipe section handling apparatus according to claim 7, characterised in that, The first end of the transition plate (12) is provided with a bevel (122).

9. A submarine pipe section handling apparatus according to claim 1, wherein It also includes a grip (3), and the second end of the force bar (2) is provided with a threaded mounting hole (25), and the grip (3) is threadedly connected to the threaded mounting hole (25).

10. A submarine pipe section handling apparatus according to claim 9, wherein A bearing ring (6) is provided on the periphery of the threaded mounting hole (25).

Images