A type of marine spreader device

Abstract

The utility model provides a kind of marine A type hanger device, including base, main frame, first winch, hawser, second winch, tow cable, shackles and fairlead;Base is fixed on ship deck, main frame includes main beam and two side beams, one end of side beam is hinged on base, the other end is connected with the both ends of main beam respectively, shackles and fairlead are fixedly installed in main beam middle part;One end of hawser is fixedly connected with shackles, the other end is wound on first winch, one end of tow cable is fixedly connected with towing equipment after passing through fairlead, the other end is wound on second winch.Base is welded on fishing boat deck, main frame can be conveniently added on fishing boat, and using marine winch of fishing boat can safely complete the retraction and extension of main frame and towing equipment, fishing boat is transformed into work boat of offshore investigation task, and the inherent device of fishing boat and towing equipment is used according to local conditions, meet the demand of emergency marine detection task, meet the requirement of developing emergency detection task.

Description

Technical Field

[0001] This utility model relates to the field of marine A-frame technology, specifically to a marine A-frame device that can be quickly installed on fishing boats for stern towing operations of marine exploration equipment. Background Technology

[0002] Marine A-frames, also known as marine A-mounts, are lifting machines that rotate and tilt in a vertical plane, widely used on various oceanographic survey vessels, scientific research vessels, and engineering vessels. In the current context of military-civilian integration, fishing vessels, due to their large numbers and low sensitivity, are gradually becoming an important force in maritime defense mobilization. However, most existing fishing vessels lack A-frames, possessing only shipboard winches, and are not equipped to conduct large-scale towed marine surveys. Furthermore, current marine A-frames are mostly customized products, with complex and heavy components, making them difficult to move and unable to meet the needs of urgent, rapid installation. Therefore, there is an urgent need for a portable A-frame for towing equipment, enabling fishing vessels to quickly install the device when needed and conduct emergency marine surveys. The design of this device can effectively expand the application scenarios for fishing vessels and promote the construction of a comprehensive military-civilian integrated support system. Utility Model Content

[0003] To address the problems mentioned in the background section, this utility model provides a marine A-type jack device that can be conveniently and quickly installed on fishing boats. The marine A-type jack device utilizes the marine winch and towing equipment on the fishing boat to enable the fishing boat to carry out marine survey missions, thus compensating for the shortcoming that fishing boats cannot perform stern towing operations for marine exploration equipment.

[0004] The present invention adopts the following technical solution: a marine A-type jack device, comprising a base, a main frame, a first winch, a hoisting cable, a second winch, a towing cable, a shackle, and a guide wheel; the two bases are fixed on the ship deck at a predetermined distance apart, the main frame includes a main beam and side beams, one end of the two side beams is hinged to the base, and the other end is respectively connected to both ends of the main beam, the shackle and guide wheel are fixedly installed in the middle of the main beam;

[0005] One end of the hoisting cable is fixedly connected to the shackle, and the other end is wound around the first winch, which is used to raise and lower the hoisting cable. One end of the towing cable passes through the guide wheel and is fixedly connected to the towing equipment, and the other end is wound around the second winch, which is used to raise and lower the guide wheel.

[0006] Furthermore, the marine A-type gantry device also includes two limiting mechanisms, each including a limiting column and a limiting bolt. The two limiting columns are vertically fixed to the ship deck at a predetermined distance apart. Limiting slots are formed along the height direction of the limiting columns. The two side beams pass through the two limiting slots respectively and can move up and down within the limiting slots.

[0007] First limiting through holes are respectively opened at the upper and lower parts of the limiting column in a direction perpendicular to the limiting strip groove. The first limiting through holes are connected to the limiting strip groove. Two second limiting through holes are opened at a distance in the middle of the side beam. The limiting bolt is used to pass through the first limiting through hole and the second limiting through hole at the same time to fix the side beam to the limiting column.

[0008] Furthermore, the base includes two mounting plates and a hinge shaft fixedly mounted between the two mounting plates; the two mounting plates are fixed to the ship deck, and the side beam is hinged to the hinge shaft through a hinge hole at its end.

[0009] Furthermore, the base and the limiting mechanism are fixed to the ship deck by welding.

[0010] Furthermore, the ends of the two side beams are fixedly connected to the two ends of the main beam by welding or bolting.

[0011] Furthermore, the ends of the two side beams are rotatably connected to the two ends of the main beam via rotating assemblies. The rotating assemblies include connecting rings fixedly installed at the ends of the side beams, connecting plates fixedly installed at the ends of the main beams, and connecting members. The two connecting plates are spaced apart by a distance, and through holes are provided on the connecting plates. The connecting rings can extend between the two connecting plates, and the connecting members are used to pass through the through holes and the connecting rings to connect the side beams and the main beams, thereby achieving a rotatable connection between the side beams and the main beams.

[0012] Further, the connecting member is a hinge shaft; or, the connecting member includes a connecting gear and a nut, the connecting gear including a limiting plate, a gear rod and a screw rod fixedly connected in sequence, the through hole being a toothed hole matching the gear rod, and the nut being threaded onto the screw rod; the side beam also includes a gear, and a cavity is formed in the end of the side beam at one end of the connecting ring, the cavity communicating with the connecting ring, and gear mounting holes are formed on both sides of the cavity symmetrically, the gear being rotatably mounted in the cavity through the two gear mounting holes; the gear meshes with the gear rod.

[0013] Furthermore, a fixing plate is fixedly connected between the side beam and the main beam, and the two ends of the fixing plate are fixedly connected to the side beam and the main beam by welding or bolting respectively.

[0014] Beneficial Effects: The marine A-frame device in this patent allows for quick and convenient installation of the main frame onto the fishing boat by welding the base to the deck. The fishing boat's onboard winch safely deploys and retracts the main frame and towing equipment, transforming the fishing boat into a vessel for marine surveys. Furthermore, the rotating assembly between the side beams and the main beam allows the portable A-frame to be installed on fishing boats of varying widths, meeting the needs of emergency marine exploration missions and achieving a dual-use (military and civilian) functionality. It utilizes the inherent features of fishing boats and towing equipment in a site-specific manner, and the device allows for rapid installation, meeting the requirements for conducting emergency exploration missions. Attached Figure Description

[0015] Appendix Figure 1 This is a three-dimensional structural diagram of the marine A-type jack device of this utility model. Figure 1 .

[0016] Appendix Figure 2 This is a three-dimensional structural diagram of the marine A-type jack device of this utility model. Figure 2 .

[0017] Appendix Figure 3 This is a schematic diagram of the structure of the base 1 and the limiting mechanism 3 in this utility model.

[0018] Appendix Figure 4 This is a three-dimensional structural diagram of the side beam 21 in this utility model.

[0019] Appendix Figure 5 This is a three-dimensional structural diagram of the main beam 22 in this utility model.

[0020] Appendix Figure 6 This is an exploded view of the components of the main beam 22 in this utility model.

[0021] The reference numerals in the attached drawings are explained as follows: base 1, mounting plate 11, hinge shaft 12, main frame 2, side beam 21, hinge hole 211, second limiting through hole 212, connecting ring 213, cavity 214, gear mounting hole 215, gear 216, main beam 22, connecting plate 221, tooth hole 2211, connecting toothed rod 222, limiting plate 2221, gear rod 2222, screw 2223, nut 223, fixing plate 23, limiting mechanism 3, limiting column 31, limiting strip groove 311, first limiting through hole 312, limiting bolt 32, first winch 4, hoisting cable 5, second winch 6, towing cable 7, shackle 8, guide wheel 9. Detailed Implementation

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The content of the utility model will be further explained below in conjunction with the drawings:

[0023] Example 1

[0024] See attached document Figure 1 This embodiment provides a marine A-type jack device that can be easily and quickly installed on fishing boats, including a base 1, a main frame 2, a limiting mechanism 3, a first winch 4, a lifting cable 5, a second winch 6, a towing cable 7, a shackle 8, and a guide wheel 9.

[0025] See attached document Figure 3 Two bases 1 are fixed to the ship deck at a predetermined distance apart. Specifically, the base 1 includes two mounting plates 11 and a hinge shaft 12 fixed between the two mounting plates 11. The two mounting plates 11 are fixed to the ship deck by welding.

[0026] See attached document Figure 2 The main frame 2 includes a main beam 22 and side beams 21. One end of the two side beams 21 is hinged to the hinge shaft 12 through the hinge holes 211 provided thereon. The other ends of the two side beams 21 are fixedly connected to the two ends of the main beam 22 by welding or bolting.

[0027] The first winch 4 and the second winch 6 are fixedly installed on the ship deck by welding or bolting, and are centered relative to the main frame 2. The shackle 8 and the guide sheave 9 are fixedly installed in the middle of the main beam 22; one end of the hoisting cable 5 is fixedly connected to the shackle 8, and the other end is wound around the first winch 4. The first winch 4 is used to raise and lower the hoisting cable 5 to realize the lifting and lowering of the main frame 2. One end of the towing cable 7 passes through the guide sheave 9 and is fixedly connected to the towing equipment, and the other end is wound around the second winch 6. The second winch 6 is used to raise and lower the guide sheave 9 to realize the deployment and retrieval of the towing equipment.

[0028] Since the main frame 2 is only fixed at one end by the base 1, and the other end is only pulled by the hoisting cable 5 and the towing cable 7, it is likely to sway during transit, and may even tilt towards the first winch 4 and the second winch 6, posing a safety risk. Therefore, the main frame 2 needs to be limited or fixed.

[0029] Regarding the above issues, please refer to the appendix. Figure 1-3A limiting mechanism 3 is provided, which includes a limiting column 31 and a limiting bolt 32. The two limiting columns 31 are set at a preset distance apart and are vertically fixed to the ship deck by welding or bolting. A limiting strip groove 311 is opened along the height direction of the limiting column 31. The two side beams 22 pass through the two limiting strip grooves 311 respectively and can move up and down within the limiting strip grooves 311. The length of the limiting strip groove 311 restricts the rotation angle of the side beams 22 relative to the ship deck to between 20-70°.

[0030] Although the limiting groove 311 can restrain the main frame 2 from tilting towards the first winch 4 and the second winch 6, the main frame 2 may still sway up and down within the limiting groove 311 during transit, causing collisions and impacts, which may damage the equipment. At the same time, since the main frame 2 only has two working modes, one is transit mode and the other is towing equipment deployment mode, in order to completely fix the position of the main frame 2 in the above two modes.

[0031] First limiting through holes 312 are respectively opened at the upper and lower parts of the limiting column 31 in a direction perpendicular to the limiting strip groove 311. The first limiting through holes 312 are connected to the limiting strip groove 311. Two second limiting through holes 212 are opened at a distance in the middle of the side beam 21. When the ship is sailing, the main frame 2 is raised by winding the hoisting cable 5 through the first winch 4. When the first limiting through hole 312 at the upper part is aligned with the second limiting through hole 212 at the end away from the hinge hole 211, the limiting bolt 32 is passed through the first limiting through hole 312 and the second limiting through hole 212 at the same time to fix the two side beams 21 to the limiting column 31, thereby fixing the main frame 2 and preventing the main frame 2 from shaking during sailing.

[0032] When the ship reaches the target area and the towing equipment needs to be deployed, the limiting bolt 32 is pulled out. The first winch 4 and the second winch 6 work together to release the cable. When the first limiting through hole 312 at the bottom is aligned with the second limiting through hole 212 near the hinge hole 211, the first winch 4 stops releasing the cable and passes the limiting bolt 32 through both the first limiting through hole 312 and the second limiting through hole 212 to fix the two side beams 21 back to the limiting column 31, thus fixing the main frame 2. At this time, the deployment of the towing equipment is completed by releasing the cable through the second winch 6, and the ship can move forward according to the requirements of the towing survey operation.

[0033] At the same time, the limiting mechanism 3 can reduce the load on the suspension cable 5 to a certain extent, thereby increasing its service life.

[0034] Example 2

[0035] To meet the requirements for installing marine A-type gantry cranes on fishing vessels with different deck widths, this embodiment provides a marine A-type gantry crane device.

[0036] The only difference between the marine A-type gantry device in this embodiment and that in embodiment 1 is that the two side beams 21 are rotatably connected to the two ends of the main beam 22, thereby adjusting the opening angle of the two side beams 21 to suit fishing boats with different deck widths.

[0037] In one specific implementation, refer to the appendix. Figure 4 A connecting ring 213 is fixedly installed at the end of the side beam 21. (See attached diagram.) Figure 5 , 6 Connecting plates 221 are fixedly installed at both ends of the main beam 22, with a certain distance between them. Through holes are provided in the connecting plates 221, allowing connecting rings 213 to extend between them. Hinges are threaded through the through holes and connecting rings 213, enabling rotatable connection between the two side beams 21 and the ends of the main beam 22. Specifically, the hinge can be a bolt with a nut, passing through the through holes and connecting rings 213, and secured by screwing the nut. The connecting rings 213 are fitted around the bolt and can rotate around it, thus allowing the side beams 21 to rotate around the bolt.

[0038] In another specific embodiment, refer to the appendix. Figure 4 A connecting ring 213 is fixedly installed at the end of the side beam 21. The side beam 21 also includes a gear 216. A cavity 214 is opened in the end of the side beam 21 at one end of the connecting ring 213. The cavity 214 is connected to the inner cavity of the connecting ring 213. Gear mounting holes 215 are opened on both sides of the cavity 214 symmetrically. The gear 216 is rotatably installed in the cavity 214 through the two gear mounting holes 215.

[0039] See attached document Figure 5 , 6 Connecting plates 221 are fixedly installed at both ends of the main beam 22, with a certain distance between them. Through holes are provided on the connecting plates 221, allowing connecting rings 213 to extend between them. Connecting components are inserted through the through holes and the connecting rings 213, enabling rotatable connection between the two side beams 21 and the ends of the main beam 22. Specifically, the connecting components include a connecting gear 222 and a nut 223. The connecting gear 222 includes a limiting plate 2221, a gear rod 2222, and a screw 2223, which are fixedly connected in sequence. The through hole is a toothed hole 2211 that matches the gear rod 2222. The nut 223 is threaded onto the screw 2223. The connecting ring 213 is sleeved on the outside of the gear rod 2222 and can rotate around it, thus allowing the side beams 21 to rotate around the connecting components. Simultaneously, the gear 216 meshes with the gear rod 2222, making the rotation of the side beams 21 more stable and improving their service life.

[0040] After adjusting the rotation angles of the side beam 21 and the main beam 22, the positions of the corresponding base 1 and the limiting mechanism 3 move along with the position of the side beam 21 and are fixed on the ship deck. To maintain the stability of the A-frame, refer to the attached... Figure 1 , 2 A fixing plate 23 is diagonally connected between the side beam 21 and the main beam 22. The two ends of the fixing plate 23 are fixedly connected to the side beam 21 and the main beam 22 by welding or bolting.

[0041] The installation method of the marine A-type jack device in this patent is as follows:

[0042] 1) Fix one end of the two side beams 21 directly to both ends of the main beam 22 or adjust the angle before fixing them and place them on the ship deck;

[0043] 2) Pass the other ends of the two side beams 21 through the limiting strip grooves 311 on the two limiting devices respectively. Determine the position of the base 1 according to the position of the other ends of the two side beams 21. Weld the base 1 to the ship deck and hinge the other ends of the two side beams 21 to the two bases 1 respectively.

[0044] 3) Secure the hoisting cable 5 to the shackle 8, drive the first winch 4 to wind up the hoisting cable 5, raise the main frame 2, stop after raising it to the target position, slide the limiting device along the side beam 21, align the first limiting through hole 312 at the bottom with the second limiting through hole 212 near the hinge hole 211, and at this time pass the limiting bolt 32 through both the first limiting through hole 312 and the second limiting through hole 212 to secure the limiting column 31 to the side beam 21. At this time, keep the limiting column 31 vertical, drive the first winch 4 to release the hoisting cable 5, so that the main frame 2 and the limiting column 31 slowly descend until the bottom surface of the limiting column 31 contacts the ship deck, stop releasing the cable, and weld the limiting column 31 to the ship deck.

[0045] 4) Wrap the towing cable 7 around the guide wheel 9 and fix it to the towing equipment; pull out the limit bolt 32, drive the first winch 4 to wind up the hoisting cable 5, so that the main frame 2 is raised. When the first limit through hole 312 at the top is aligned with the second limit through hole 212 at the end away from the hinge hole 211, pass the limit bolt 32 through both the first limit through hole 312 and the second limit through hole 212 at the same time to fix the main frame 2.

[0046] 5) At this time, the second winch 6 is used to release the towing cable 7 until the towing equipment is placed on the support on the deck, thus completing the installation of the marine A-type gantry device.

[0047] The method of using the marine A-type jack device in this patent is as follows:

[0048] 1) When approaching the work site, the fishing boat travels in a straight line at low speed against the current;

[0049] 2) Open the limiting bolts 32 on the limiting devices 3 on both sides of the main frame 2, drive the second winch 6 of the towing equipment to take in a certain length of towing cable 7, so that the towing equipment is lifted off the deck at a certain height.

[0050] 3) Drive the first winch 4 to lower the main frame 2 toward the deck, and at the same time drive the second winch 6 of the towing equipment to properly retrieve the towing cable 7 to prevent the towing equipment from hitting the deck.

[0051] 4) When the main frame 2 approaches the first limiting through hole 312 at the lower part of the limiting device 3, the lowering speed of the first winch 4 is slowed down until the first limiting through hole 312 at the lower part is aligned with the second limiting through hole 212 at the end near the hinge hole 211. Then the first winch 4 stops releasing the steel wire cable and locks the limiting bolt 32.

[0052] 5) Continue to use the second winch 6 of the towing equipment to release the towing equipment, ensuring that the towing equipment enters the water safely. At the same time, the fishing vessel should move forward according to the towing survey operation requirements, and pay attention to the condition of the towing cable during the process.

[0053] 6) After the towing operation is completed, the fishing boat travels in a straight line at low speed against the current to recover the towing equipment. The limit bolt 32 is opened, and the first winch 4 and the second winch 6, which is paired with the towing equipment, simultaneously wind up the cable. The wind up speed is slowed as the towing equipment is about to leave the water. After the towing equipment leaves the water, the two winches simultaneously wind up the cable until the first limit through-hole 312 at the top aligns with the second limit through-hole 212 at the end furthest from the hinge hole 211. At this point, the first winch 4 stops winding up the cable and locks the limit bolt 32. The second winch 6 then begins to release the towing cable, placing the towing equipment on the towing equipment support to complete the recovery operation.

[0054] It is obvious that modifications and / or additions can be made to the above-mentioned marine A-type jack device and corresponding methods without departing from the scope and field of this utility model.

[0055] It is equally clear that, although this utility model has described the marine A-type jack device in detail, those skilled in the art will certainly be able to obtain many other equivalent forms of marine A-type jack devices and corresponding methods that have the features described in the claims and are therefore within the scope of protection defined herein.

Claims

1. A marine A-type jacking device, characterized in that: It includes a base (1), a main frame (2), a first winch (4), a hoisting cable (5), a second winch (6), a towing cable (7), a shackle (8), and a guide wheel (9); the two bases (1) are fixed on the ship deck at a predetermined distance apart, the main frame (2) includes a main beam (22) and side beams (21), one end of the two side beams (21) is hinged to the base (1), and the other end is connected to both ends of the main beam (22), and the shackle (8) and the guide wheel (9) are fixedly installed in the middle of the main beam (22); One end of the hoisting cable (5) is fixedly connected to the shackle (8), and the other end is wound around the first winch (4). The first winch (4) is used to retract and extend the hoisting cable (5). One end of the towing cable (7) passes through the guide wheel (9) and is fixedly connected to the towing equipment. The other end is wound around the second winch (6). The second winch (6) is used to retract and extend the guide wheel (9).

2. The marine A-type jack device according to claim 1, characterized in that: The marine A-type gantry device also includes two limiting mechanisms (3). The limiting mechanism (3) includes a limiting column (31) and a limiting bolt (32). The two limiting columns (31) are vertically fixed on the ship deck at a preset distance apart. A limiting strip groove (311) is opened along the height direction of the limiting column (31). The two side beams (22) pass through the two limiting strip grooves (311) respectively and can move up and down in the limiting strip grooves (311). First limiting through holes (312) are respectively provided on the upper and lower parts of the limiting column (31) in a direction perpendicular to the limiting strip groove (311). The first limiting through holes (312) are connected to the limiting strip groove (311). Two second limiting through holes (212) are provided at a distance in the middle of the side beam (21). The limiting bolt (32) is used to pass through the first limiting through hole (312) and the second limiting through hole (212) at the same time to fix the side beam (21) on the limiting column (31).

3. The marine A-type jack device according to claim 1, characterized in that: The base (1) includes two mounting plates (11) and a hinge shaft (12) fixedly mounted between the two mounting plates (11); the two mounting plates (11) are fixed on the ship deck, and the side beam (21) is hinged to the hinge shaft (12) through a hinge hole (211) opened at its end.

4. The marine A-type jack device according to claim 2, characterized in that: The base (1) and the limiting mechanism (3) are fixed to the ship deck by welding.

5. The marine A-type jack device according to claim 1, characterized in that: The ends of the two side beams (21) are fixedly connected to the two ends of the main beam (22) by welding or bolting.

6. The marine A-type jack device according to claim 1, characterized in that: The ends of the two side beams (21) are rotatably connected to the ends of the main beam (22) by rotating components. The rotating components include a connecting ring (213) fixedly installed at the end of the side beam (21), a connecting plate (221) fixedly installed at the end of the main beam (22), and a connector. The two connecting plates (221) are spaced apart by a distance, and a through hole is provided on the connecting plate (221). The connecting ring (213) can extend between the two connecting plates (221). The connector is used to pass through the through hole and the connecting ring (213) to connect the side beam (21) and the main beam (22) and realize the rotatable connection between the side beam (21) and the main beam (22).

7. The marine A-type jack device according to claim 6, characterized in that: The connecting component is a hinge shaft; or, the connecting component includes a connecting gear (222) and a nut (223), the connecting gear (222) including a limiting plate (2221), a gear rod (2222), and a screw rod (2223) fixedly connected in sequence, the through hole being a toothed hole (2211) matching the gear rod (2222), and the nut (223) being threaded onto the screw rod (2223); the side beam (21) also includes a gear. (216) A cavity (214) is provided in the end of the side beam (21) at one end of the connecting ring (213). The cavity (214) is connected to the connecting ring (213). Gear mounting holes (215) are provided on both sides of the cavity (214). The gear (216) is rotatably mounted in the cavity (214) through the two gear mounting holes (215). The gear (216) meshes with the gear rod (2222).

8. The marine A-type jack device according to claim 1 or 6, characterized in that: A fixing plate (23) is fixedly connected between the side beam (21) and the main beam (22). The two ends of the fixing plate (23) are fixedly connected to the side beam (21) and the main beam (22) by welding or bolting.

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