Marine hooking device based on Zhan coupler and mooring buoy system applying same

By adding a mooring hole connection structure and a double locking pin design to the marine hook and hook device, the safety risks and difficulties in harsh sea conditions of traditional mooring and detaching of pontoons have been solved, achieving safe and efficient pontoon mooring and detachment, and reducing the risks of manual operation and operating costs.

CN223999719UActive Publication Date: 2026-03-17杜子轩 +3
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Patent Information

Application Number
CN202520775307.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-03-17
Estimated Expiration
2035-04-23

AI Technical Summary

Technical Problem

Traditional mooring and buoyancy control relies on manual labor, which poses safety risks and is difficult to carry out effectively in harsh sea conditions and water depths that vary over time, increasing the difficulty and risk of anchoring ships.

Method used

The marine hook and hook device based on the James coupler is adopted, with the addition of a mooring hole connection structure, combined with a double locking pin design and intermediate connector, to achieve stable locking of the hook body and hook tongue, and connect the ship and buoy through a cable, reducing manual operation.

Benefits of technology

It improves the safety and reliability of marine hook and hook devices, reduces the risk of manual operation, adapts to harsh water conditions and time-varying water depth environments, improves operational efficiency and port management efficiency, and reduces ship operating costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The marine hooking device comprises a first hook body, a second hook body, a first hook tongue, a second hook tongue, a first lock pin and a second lock pin, the first hook body is provided with a first opening connecting structure, and the second hook body is provided with a second opening connecting structure. The first opening connecting structure is connected with a ship through a first middle connecting piece, the first hook body is provided with at least one first rope tying hole position connecting structure provided with at least one rope tying hole, and the second hook body is provided with at least one second rope tying hole position connecting structure provided with at least one rope tying hole. The first rope tying hole site connecting structures are bound and tied with the second rope tying hole site connecting structures through ropes in a one-to-one correspondence manner; the utility model further provides a tying and separating buoy system using the marine hooking device based on the Zhan coupler. The tying and separating buoy system comprises the marine hooking device based on the Zhan coupler and a tying and separating buoy. The safety, reliability and convenience of the marine hooking device and system are improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of marine hook and hook devices and mooring buoy accessories, specifically to a marine hook and hook device based on the James coupler and a mooring buoy system using the same. Background Technology

[0002] Ships affected by severe weather such as typhoons and monsoons need to anchor at anchorages. The larger the tonnage of the ship, the larger the mooring lines, which increases the difficulty of operation and the safety risks. The traditional method of mooring and unmooring buoys mainly relies on mooring boats and manual operation. Crew members need to travel by boat to the buoy to perform mooring and unmooring operations. The mooring lines connect the ship and the buoy to fix the ship's position. Due to wind and waves, the process of crew members going into the water and traveling to the buoy in small boats is extremely risky, with the risk of falling into the water and being injured. In some cases, severe sea conditions may even prevent the ship from mooring and unmooring, making it impossible to anchor and further increasing the difficulty of the ship's typhoon and wave protection. Utility Model Content

[0003] In view of this, it is necessary to address the above-mentioned problems by proposing a marine hook-and-hook device based on James coupler and a mooring buoy system using it, in order to overcome some of the shortcomings of the above-mentioned background technology and solve how to improve the safety and reliability of the marine hook-and-hook device, thereby further enabling anchored vessels to adapt to harsh water conditions and time-varying water depth environments when mooring buoys.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model proposes a marine hooking device based on a James coupler, comprising a first hook body, a second hook body, a first hook tongue, a second hook tongue, a first locking pin, and a second locking pin; the first hook tongue is pivotally connected to one side of the first hook body, and the second hook tongue is pivotally connected to one side of the second hook body; when the first hook tongue and the second hook tongue are engaged, and the first hook tongue and the second hook tongue are locked by the first locking pin and the second locking pin respectively, the first hook body and the second hook body form a James coupler mechanism; a first opening connection structure is fixedly provided on the other side of the first hook body, and a second opening connection structure is fixedly provided on the other side of the second hook body; the first hook body has a first pin hole for detachably inserting the first locking pin, and the second hook body has a second pin hole for detachably inserting the second locking pin; the first opening connection structure is used to connect to a ship through a first intermediate connector;

[0006] The first hook body is provided with at least one first tethering hole connection structure, and the first tethering hole connection structure is provided with at least one tethering hole; the second hook body is provided with at least one second tethering hole connection structure, and the second tethering hole connection structure is provided with at least one tethering hole; the first tethering hole connection structures are connected to the second tethering hole connection structures one by one by rope, so that the first hook body and the second hook body are connected in the same position.

[0007] This utility model further proposes a mooring buoy system using the James coupler-based marine hook and rigging device described above, comprising:

[0008] The marine hook and hanger device based on the James coupler;

[0009] A mooring buoy; the second perforated connection structure is used to connect to the mooring buoy via a second intermediate connector; the second intermediate connector is a cable, one end of which is connected to the second perforated connection structure, and the other end of which is connected to the mooring rope structure of the mooring buoy; the first intermediate connector is a cable; when the mooring buoy needs to be towed, one end of the first intermediate connector is connected to the first perforated connection structure, and the other end of the first intermediate connector is connected to the mooring rope structure of the vessel.

[0010] The beneficial effects of this utility model are as follows:

[0011] This invention improves the safety and reliability of marine hook-and-loop devices by adding a mooring hole connection structure to the James coupler, which is suitable for ship mooring and unmooring. This further enables ships at anchor to adapt to harsh water conditions and time-varying water depths when mooring and unmooring buoys. This invention also reduces the risk of manual operation, improves operational efficiency, and allows ships to moor and unmoor buoys as needed. This invention optimizes the allocation and scheduling of buoys through the James coupler-based marine hook-and-loop device, achieving optimal resource utilization and improving port management efficiency. The mooring and unmooring buoy system of this invention reduces the difficulty of mooring and unmooring large bulk carriers in harsh sea conditions and time-varying water depths, improving operational stability, safety, and port management efficiency.

[0012] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the marine hook and hanger device based on the James coupler, which has been successfully docked according to this utility model.

[0014] Figure 2 This is a top view of the first hook body, the first hook tongue, and the first locking pin of this utility model after they are connected.

[0015] Figure 3 This is a top view of the first hook tongue involved in this utility model;

[0016] Figure 4 This is a top view of the second hook body, the second hook tongue, and the second locking pin involved in this utility model after they are connected;

[0017] Figure 5 This is a top view of the second hook tongue involved in this utility model;

[0018] Figure 6 This is a half-sectional view of the first locking pin involved in this utility model from the front view.

[0019] Figure 7 This is a half-sectional view of the second locking pin involved in this utility model from the front view.

[0020] Figure 8 This is a three-dimensional sectional view of the structure of the first hook body, the first hook tongue, and the first locking pin of this utility model after they are connected.

[0021] Figure 9 This is a three-dimensional sectional view of the structure of the second hook body, the second hook tongue, and the second locking pin of this utility model after they are connected.

[0022] Explanation of reference numerals in the attached figures:

[0023] First hook body 11; Second hook body 21; First hook tongue 12; Second hook tongue 22; First locking pin 13; Second locking pin 23; First pin hole 14; Second pin hole 24; First opening connection structure 15; Second opening connection structure 25; First intermediate connector 16; Second intermediate connector 26; First left ear connecting plate 111; First right ear connecting plate 112; Second left ear connecting plate 211; Second right ear connecting plate 212; First pivot shaft 17; Second pivot shaft 27; First hook head 121; First pivot middle part 122; first hook tail part 123; second hook head 221; second pivot middle part 222; second hook tail part 223; first over-position width L1; second over-position width L2; second clearance groove 231; second boss 2311; first clearance groove 131; first boss 1311; first limiting pit 1231; second limiting pit 2231; first fulcrum structure 132; second fulcrum structure 232; first pin hole inner wall slope 1400; second pin hole inner wall slope 2400. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be further described clearly and completely below in conjunction with the embodiments of this utility model. It should be noted that the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", 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.

[0026] The terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, the use of “first,” “second,” “third,” and “fourth” to designate a feature may explicitly or implicitly include one or more of that feature.

[0027] Example 1

[0028] like Figure 1 As shown:

[0029] This embodiment proposes a marine hook-and-hook device based on a James coupler, including a first hook body 11, a second hook body 21, a first hook tongue 12, a second hook tongue 22, a first locking pin 13, and a second locking pin 23. The first hook tongue 12 is pivotally connected to one side of the first hook body 11, and the second hook tongue 22 is pivotally connected to one side of the second hook body 21. When the first hook tongue 12 and the second hook tongue 22 are engaged and locked by the first locking pin 13 and the second locking pin 23 respectively, the first hook... The first hook body 11 and the second hook body 21 form a James coupler mechanism; a first opening connection structure 15 is fixedly provided on the other side of the first hook body 11, and a second opening connection structure 25 is fixedly provided on the other side of the second hook body 21; the first hook body 11 has a first pin hole 14 for detachably inserting the first locking pin 13, and the second hook body 21 has a second pin hole 24 for detachably inserting the second locking pin 23; the first opening connection structure 15 is used to connect to a ship through a first intermediate connector 16.

[0030] The first hook body 11 is provided with at least one first tethering hole connection structure, and the first tethering hole connection structure is provided with at least one tethering hole; the second hook body 21 is provided with at least one second tethering hole connection structure, and the second tethering hole connection structure is provided with at least one tethering hole; the first tethering hole connection structures are connected to the second tethering hole connection structures one by one by rope, so that the first hook body 11 and the second hook body 21 are connected in the same position.

[0031] This embodiment of a marine hook-and-hook device based on the James coupler improves the safety and reliability of the device by adding a mooring hole connection structure to the James coupler applicable to vessel mooring and unmooring. This further enables the device to adapt to harsh water conditions and time-varying water depth environments when vessels are moored and unmoored from buoys at anchorages. It also reduces the risk of manual operation, improves operational efficiency, and allows vessels to moor and stop at any time. Furthermore, the marine hook-and-hook device based on the James coupler optimizes the allocation and scheduling of buoys, achieving optimal resource utilization and improving port management efficiency.

[0032] Example 2

[0033] Example 2 is a further optimized design of Example 1;

[0034] like Figure 1 As shown:

[0035] The first intermediate connector 16 is a cable; the first opening connection structure 15 is used to attach the first intermediate connector 16.

[0036] Example 3

[0037] Example 3 is a further optimized design of Example 1 or Example 2;

[0038] like Figure 1 As shown:

[0039] The first opening connection structure 15 is annular or a steel opening block; the second opening connection structure 25 is annular or a steel opening block.

[0040] Example 4

[0041] Example 4 is a further optimized design of any one of Examples 1-3;

[0042] like Figure 1 As shown:

[0043] The second perforated connection structure 25 is used to connect to one end of a second intermediate connector 26, which is another cable. When the first hook body 11 and the second hook body 21 form a James coupler mechanism, and when the other end of the second intermediate connector 26 is subjected to a towing force / reaction force (at which time both the first intermediate connector 16 and the second intermediate connector 26 are under tension), the force / reaction force acts sequentially on the second perforated connection structure 25, the second hook body 21, the second hook tongue 22, the first hook tongue 12, the first hook body 11, the first perforated connection structure 15, the first intermediate connector 16, and the ship. When the other end of the second intermediate connector 26 is subjected to a towing force, the ship is towed. When the other end of the second intermediate connector 26 is subjected to a towing reaction force, the object connected to the other end of the second intermediate connector 26 is towed (the object is a buoy, a floating platform, or another ship).

[0044] Example 5

[0045] Example 5 is a further optimized design of any one of Examples 1-4;

[0046] like Figure 1 As shown:

[0047] The two first tethering hole connection structures are the first left ear connecting plate 111 and the first right ear connecting plate 112, respectively; the two second tethering hole connection structures are the second left ear connecting plate 211 and the second right ear connecting plate 212, respectively.

[0048] The first left ear connecting plate 111 and the first right ear connecting plate 112 are located on the longitudinal sides of the first hook body 11 (the docking direction of the first hook body 11 and the second hook body 21 is the horizontal direction of the coordinate system); the second left ear connecting plate 211 and the second right ear connecting plate 212 are located on the longitudinal sides of the second hook body 21; each of the first left ear connecting plate 111, the first right ear connecting plate 112, the second left ear connecting plate 211, and the second right ear connecting plate 212 is provided with at least one rope-tying hole; when the first hook body 11 and the second hook body 21 form a James coupler mechanism, the first left ear connecting plate 111 and the second left ear connecting plate 211 are connected by rope binding, and the first right ear connecting plate 112 and the second right ear connecting plate 212 are connected by rope binding; in this way, left and right alignment docking can be performed stably, conveniently, and firmly.

[0049] Example 6

[0050] Example 6 is a further optimized design of Example 5;

[0051] like Figure 1As shown: When the first hook body 11 and the second hook body 21 form a James hook mechanism, the rope holes of the first left ear connecting plate 111 and the rope holes of the second left ear connecting plate 211 are aligned one-to-one in the hole position, and the rope holes of the first right ear connecting plate 112 and the rope holes of the second right ear connecting plate 212 are aligned one-to-one in the hole position, thereby facilitating rope binding and docking.

[0052] Example 7

[0053] Example 7 is a further optimized design of any one of Examples 1-6;

[0054] like Figures 1-9 As shown:

[0055] The first hook tongue 12 is hook-shaped and includes, in sequence, a first hook head 121, a first pivot middle part 122 and a first hook tail 123 that are integral; the first pivot middle part 122 is pivotally connected to the first hook body 11 through a first pivot shaft 17.

[0056] The second hook tongue 22 is hook-shaped and includes an integrally formed second hook head 221, a second pivot middle part 222 and a second hook tail 223 in sequence; the second pivot middle part 222 is pivotally connected to the second hook body 21 through a second pivot shaft 27.

[0057] When the first hook body 11 and the second hook body 21 form a James hook mechanism, the first hook head 121 and the second hook head 221 cooperate with each other in a handshake shape, and the first hook tail 123 and the second hook tail 223 are locked by the first locking pin 13 and the second locking pin 23 respectively.

[0058] Optimized, the first locking pin 13 has rope-passing channels at both ends; the first locking pin 13 has a first clearance groove 131 recessed in the middle, and a first boss 1311 protruding from one side of the first clearance groove 131; the distance between the protrusion limit position of the first boss 1311 and the other side of the first clearance groove 131 is a first over-distance width L1, which is greater than the thickness of the tail end of the first hook tail 123; the first hook tail 123 has a first limiting pit 1231; the first pin hole 14 penetrates the first hook body 11;

[0059] When the first locking pin 13 is pulled to lock the tail of the first hook 123, the first boss 1311 is embedded in the first limiting pit 1231, and the first boss 1311 and the first limiting pit 1231 are in a concave-convex fit; thus, the locking pin can be stably and conveniently and firmly locked in the head of the first hook 121 under the conditions of anchorage or ship mooring.

[0060] Optimized, the two ends of the second locking pin 23 are respectively provided with rope passages; the middle of the second locking pin 23 is recessed with a second clearance groove 231, and a second boss 2311 is protruding from one side of the second clearance groove 231; the distance between the protrusion limit position of the second boss 2311 and the other side of the second clearance groove 231 is the second over-width L2, and the second over-width L2 is greater than the thickness of the tail end of the second hook tail 223; the second hook tail 223 is provided with a second limiting pit 2231; the second pin hole 24 penetrates the second hook body 21;

[0061] When the second locking pin 23 is pulled to lock the tail of the second hook 223, the second boss 2311 is embedded in the second limiting pit 2231, and the second boss 2311 and the second limiting pit 2231 are in a concave-convex fit; thus, the locking pin can be stably and securely locked in the head of the second hook 221 under the conditions of anchorage or ship mooring.

[0062] Ideally, when the first locking pin 13 is loosely inserted into the first pin hole 14 and is pulled and tilted (the size of the space in the first pin hole 14 allows the first locking pin 13 to tilt and act as a lever), the first locking pin 13, through a first fulcrum structure 132 that acts as a lever support, makes the first boss 1311 and the first limiting pit 1231 fit together; this makes operation convenient and labor-saving, and the locking pin is more secure after it is locked.

[0063] Ideally, when the second locking pin 23 is loosely inserted into the second pin hole 24 and is pulled and tilted (the size of the space in the second pin hole 24 allows the second locking pin 23 to tilt and act as a lever), the second locking pin 23, through a second fulcrum structure 232 that acts as a lever support, makes the second boss 2311 and the second limiting pit 2231 fit together; this makes operation convenient and labor-saving, and the locking pin is more secure after it is locked.

[0064] Specifically, after the first hook tongue 12 and the second hook tongue 22 are hooked together, pulling the nylon rope through the rope passage at the end of the first locking pin 13 and the nylon rope through the rope passage at the end of the second locking pin 23 will cause the first locking pin 13 and the second locking pin 23 to be set laterally at an angle. The protrusion of the locking pin hooks together with the concave part of the hook tongue, fixing the hook tongue and locking the first hook body 11 and the second hook body 21 until the nylon rope is pulled to release it. This ensures the safety and stability of the device and avoids the entire device from being released due to accidental release. The principle of inserting and pulling the locking pin is changed to the principle of lever and oblique pull, which is beneficial for long-distance force-bearing operations at sea.

[0065] Further optimized, the first left ear connecting plate 111, the first right ear connecting plate 112, the second left ear connecting plate 211, and the second right ear connecting plate 212 are all provided with multiple tethering holes; the multiple tethering holes of each connecting plate are arranged in a straight line, preferably arranged vertically at intervals.

[0066] Example 8

[0067] like Figures 1-9 As shown:

[0068] This embodiment proposes a mooring buoy system based on a James coupler for marine hook-and-hook devices, as described in any one of the technical solutions in any of the embodiments 1-7, comprising:

[0069] The marine hook and hanger device based on the James coupler;

[0070] A mooring buoy; the second perforated connection structure 25 is used to connect to the mooring buoy via a second intermediate connector 26; the second intermediate connector 26 is a cable, one end of the second intermediate connector 26 is connected to the second perforated connection structure 25, and the other end of the second intermediate connector 26 is connected to the mooring structure of the mooring buoy; the first intermediate connector 16 is a cable; when the mooring buoy needs to be towed, one end of the first intermediate connector 16 is connected to the first perforated connection structure 15, and the other end of the first intermediate connector 16 is connected to the mooring structure of the ship.

[0071] The mooring buoy system in this embodiment can reduce the difficulty of mooring buoys on large bulk carriers in harsh sea conditions and time-varying water depths, and improve operational stability, safety and port management efficiency.

[0072] This utility model also has the following advantages:

[0073] Improved safety: Reduced risk of personnel exposure to severe sea conditions, avoidance of dangers of manually traveling by boat to work on the pontoons, improved connection stability, reduced risk of pontoon detachment; reduced risk of disengagement through double locking pin structure and redundant design of mooring holes, and significantly improved wind and wave resistance by ≥30%;

[0074] Operational efficiency optimization: Enables mooring of buoys that can be moved and stopped at any time, saving manual operation time and improving ship mooring efficiency; Modular hook and hook devices enable rapid docking, significantly reducing the time of a single mooring operation by 40%;

[0075] Enhanced adaptability: Reduced risk during operations in adverse weather conditions; adaptable to severe sea conditions and time-varying water depths; allows for mooring and unmooring of buoys from the ship without disembarking, greatly reducing the risk of this operation; enables operations to continue even during typhoons and tidal fluctuations; compatible with complex water conditions with water depth fluctuations of ±5m.

[0076] Cost reduction: Reduced labor costs, increased operational efficiency, and lower ship operating costs;

[0077] The allocation of pontoons has been optimized, improving resource utilization and reducing port construction and operation costs.

[0078] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A ship hook device based on Janney coupler, comprising a first hook body (11), a second hook body (21), a first hook tongue (12), a second hook tongue (22), a first locking pin (13) and a second locking pin (23); the first hook tongue (12) is pivoted on one side of the first hook body (11), and the second hook tongue (22) is pivoted on one side of the second hook body (21); when the first hook tongue (12) and the second hook tongue (22) are butted, and the first hook tongue (12) and the second hook tongue (22) are locked by the first locking pin (13) and the second locking pin (23) respectively, then the first hook body (11) and the second hook body (21) form a Janney coupler mechanism; the other side of the first hook body (11) is fixedly provided with a first opening connection structure (15), and the other side of the second hook body (21) is fixedly provided with a second opening connection structure (25); the first hook body (11) is provided with a first pin hole (14) for detachably embedding the first locking pin (13), and the second hook body (21) is provided with a second pin hole (24) for detachably embedding the second locking pin (23), characterized in that, The first open hole connecting structure (15) is used for connecting with a ship through a first intermediate connecting member (16); The first hook body (11) is provided with at least one first rope hole connecting structure provided with at least one rope hole; the second hook body (21) is provided with at least one second rope hole connecting structure provided with at least one rope hole; the first rope hole connecting structure is bound and connected with the second rope hole connecting structure through a rope one by one, so that the first hook body (11) and the second hook body (21) are connected in the same pose.

2. The Jorgensen hook based marine hooking device according to claim 1, characterized in that, The first intermediate connecting member (16) is a cable; the first open hole connecting structure (15) is used for binding the first intermediate connecting member (16).

3. The Janney drawbar based marine hooking arrangement of claim 2, wherein, The first open hole connecting structure (15) is annular; the second open hole connecting structure (25) is annular.

4. The Jorgensen hook based marine hooking device according to claim 2, characterized in that, The second open hole connecting structure (25) is used for connecting with one end of a second intermediate connecting member (26), and the second intermediate connecting member (26) is another cable; when the other end of the second intermediate connecting member (26) is subjected to an action force / counterforce in the dragging direction, the action force / counterforce acts on the second open hole connecting structure (25), the second hook body (21), the second hook tongue (22), the first hook tongue (12), the first hook body (11), the first open hole connecting structure (15), the first intermediate connecting member (16) and the ship in sequence.

5. The Jorgensen drawhook based marine hooking device according to claim 1, characterized in that, The two first rope hole connecting structures are a first left ear connecting plate (111) and a first right ear connecting plate (112); the two second rope hole connecting structures are a second left ear connecting plate (211) and a second right ear connecting plate (212); the first left ear connecting plate (111) and the first right ear connecting plate (112) are respectively located on the two sides of the first hook body (11); the second left ear connecting plate (211) and the second right ear connecting plate (212) are respectively located on the two sides of the second hook body (21); the first left ear connecting plate (111), the first right ear connecting plate (112), the second left ear connecting plate (211) and the second right ear connecting plate (212) are all provided with at least one rope hole; when the first hook body (11) and the second hook body (21) form a Janes car hook mechanism, the first left ear connecting plate (111) and the second left ear connecting plate (211) are bound and connected through a rope, and the first right ear connecting plate (112) and the second right ear connecting plate (212) are bound and connected through a rope.

6. The Janney drawbar based marine hooking arrangement of claim 5, wherein, When the first hook body (11) and the second hook body (21) form a Janes car hook mechanism, the rope holes of the first left ear connecting plate (111) and the rope holes of the second left ear connecting plate (211) correspond to each other in the hole position, and the rope holes of the first right ear connecting plate (112) and the rope holes of the second right ear connecting plate (212) correspond to each other in the hole position, so as to facilitate the rope binding and connection.

7. The Jorgensen hook based marine hooking device according to any of the claims 1-6, characterized in that, The first hook tongue (12) is hook-shaped and sequentially comprises a first hook head (121), a first pivot middle part (122) and a first hook tail (123) which are integrally formed; the first pivot middle part (122) is pivoted to the first hook body (11) through a first pivot shaft (17); The second hook tongue (22) is hook-shaped and sequentially comprises a second hook head (221), a second pivot middle part (222) and a second hook tail (223) which are integrally formed; the second pivot middle part (222) is pivoted to the second hook body (21) through a second pivot shaft (27); When the first hook body (11) and the second hook body (21) form a Jan's car hook mechanism, the first hook head (121) and the second hook head (221) are handshaking-shaped and cooperated with each other, and the first hook tail (123) and the second hook tail (223) are locked by the first lock pin (13) and the second lock pin (23) respectively.

8. The Janney drawbar based marine hooking arrangement of claim 7, wherein, Both ends of the first lock pin (13) are respectively provided with rope passing channels; a first avoiding groove (131) is recessed in the middle part of the first lock pin (13), and a first boss (1311) is protruded from one groove side surface of the first avoiding groove (131); the distance between the protruding limit position of the first boss (1311) and the other groove side surface of the first avoiding groove (131) is a first over-width (L1), which is greater than the thickness of the tail end of the first hook tail (123); the first hook tail (123) is provided with a first limiting pit (1231); and the first pin hole (14) penetrates the first hook body (11); When the first lock pin (13) is locked to the first hook tail (123) by pulling the first lock pin (13), the first boss (1311) is embedded into the first limiting pit (1231), and the first boss (1311) and the first limiting pit (1231) are concave-convex matched.

9. The Janney drawbar based marine hooking arrangement of claim 7, wherein, Both ends of the second lock pin (23) are respectively provided with rope passing channels; a second avoiding groove (231) is recessed in the middle part of the second lock pin (23), and a second boss (2311) is protruded from one groove side surface of the second avoiding groove (231); the distance between the protruding limit position of the second boss (2311) and the other groove side surface of the second avoiding groove (231) is a second over-width (L2), which is greater than the thickness of the tail end of the second hook tail (223); the second hook tail (223) is provided with a second limiting pit (2231); and the second pin hole (24) penetrates the second hook body (21); When the second lock pin (23) is locked to the second hook tail (223) by pulling the second lock pin (23), the second boss (2311) is embedded into the second limiting pit (2231), and the second boss (2311) and the second limiting pit (2231) are concave-convex matched.

10. The Janney drawbar based marine hooking arrangement of claim 8, wherein, When the first lock pin (13) is pulled and inclined after being loosely inserted into the first pin hole (14), the first lock pin (13) makes the first boss (1311) and the first limiting pit (1231) concave-convex matched through a first supporting point structure (132) which plays a lever supporting role.

11. The Janney drawbar based marine hooking arrangement of claim 9, wherein, When the second locking pin (23) is pulled and tilted after being loosely inserted into the second pin hole (24), the second locking pin (23) makes the second convex block (2311) and the second limiting pit (2231) fit each other through a second fulcrum structure (232) which plays a lever supporting role.

12. A system for mooring a buoy comprising a hooking device according to any one of claims 1 to 11. Comprise: The Janes vehicle hook-based hooking device for ships; The second opening connection structure (25) is used for being connected with the detachable buoy through a second intermediate connecting piece (26); the second intermediate connecting piece (26) is a cable, one end of the second intermediate connecting piece (26) is connected with the second opening connection structure (25), and the other end of the second intermediate connecting piece (26) is connected to a rope structure of the detachable buoy; the first intermediate connecting piece (16) is a cable; When the detachable buoy needs to be pulled, one end of the first intermediate connecting piece (16) is connected with the first opening connection structure (15), and the other end of the first intermediate connecting piece (16) is connected to a rope structure of the ship. When the detachable buoy needs to be pulled, one end of the first intermediate connecting piece (16) is connected with the first opening connection structure (15), and the other end of the first intermediate connecting piece (16) is connected to a rope structure of the ship.