Anchor chain fixing and recycling mechanism and equipment
By designing an anchor chain fixing and retrieval mechanism, the problem that existing chain stop frames cannot meet the requirements of large anchor chains is solved. It provides a simple, safe and reliable anchor chain fixing and guiding device that is suitable for anchor chain retrieval on vessels without shark tongs, saving costs and improving operational flexibility.
Patent Information
- Application Number
- CN202520257964.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-02-18
AI Technical Summary
Existing chain-stop frames cannot meet the needs of retrieving anchor chains with larger diameters, especially when ships lack shark clamps or have limited winches. Therefore, an alternative anchor chain securing and retrieval device is needed.
An anchor chain fixing and retrieval mechanism has been designed, including a base, a cover plate, and fastening components. The anchor chain is fixed and guided by sliding connections and fastening bolts. It can be prefabricated on land and quickly installed at sea, and is suitable for fixing and retrieving large anchor chains.
It achieves safe and reliable fixing and guidance of the anchor chain, avoids ship modification costs, expands the range of ships that can be selected for anchor chain recovery operations, and does not affect normal operating conditions.
Smart Images

Figure CN223905246U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to anchor chain recovery field, especially related to a kind of anchor chain fixed recovery mechanism and equipment. BACKGROUND
[0002] Turret FPSO or other floating offshore production facilities, often need to be fixed on the sea by anchor chain, with the approach of service period, need to be removed and recovered, if using the ship with shark forceps to recover, can directly use shark forceps as recovery auxiliary tool, but if the ship used does not have shark forceps, two winches can be arranged, but if winch is limited, or operating space is limited, or in the consideration of cost saving, shark forceps can be replaced by chain stopper frame, the existing chain stopper frame is often small chain stopper frame, for the anchor chain of larger diameter, the existing chain stopper frame cannot meet the requirement, then special design large chain stopper frame is needed.
[0003] Therefore, it is urgent to design a kind of anchor chain fixed recovery mechanism and equipment to solve the above-mentioned problems. INVENTION CONTENTS
[0004] To solve the technical problem that the existing chain stopper frame cannot meet the requirement for the anchor chain of larger diameter mentioned in the background art, an anchor chain fixed recovery mechanism and equipment are provided.
[0005] To achieve the above-mentioned purposes, the specific technical scheme of the anchor chain fixed recovery mechanism and equipment of the utility model is as follows:
[0006] An anchor chain fixed recovery mechanism is used for fixing and recovering anchor chain, comprising base, the base is provided with two, and interval arrangement, two bases are provided with first cover plate, and first cover plate is slidably connected with base, first cover plate is further provided with first fixed port, and first fixed port is located between two bases, anchor chain can be provided in first fixed port, and fixed on first cover plate.
[0007] Further, the anchor chain fixed recovery mechanism further comprises second cover plate, the second cover plate is arranged below the first cover plate, and the second cover plate is provided with second fixed port.
[0008] Further, the first fixed port and / or the second fixed port are provided with cover plate.
[0009] Further, the end face of the first cover plate away from the second cover plate is provided with accommodating groove.
[0010] Further, the two bases are provided with moving slide, and the first cover plate is slidably connected with the two bases through the moving slide.
[0011] Further, the first cover plate comprises a fastening assembly, the fastening assembly is arranged in the first cover plate and is in sliding connection with the moving slide, and the fastening assembly can lock and unlock the first cover plate relative to the base.
[0012] Further, the fastening assembly comprises a fastening bolt and a fastening nut capable of cooperating with each other, the fastening bolt is arranged in the first cover plate and the moving slide and is in threaded connection with the fastening nut, and the first cover plate is in sliding connection with the base through the fastening nut and the moving slide.
[0013] Further, the base is further provided with a plurality of mounting positions, and the fastening assembly can fix the first cover plate on the mounting positions.
[0014] Further, the base is configured as an I-shaped steel.
[0015] The anchor chain fixing and recovering device uses the anchor chain fixing and recovering mechanism.
[0016] The anchor chain fixing mechanism has the following advantages: the anchor chain fixing mechanism is simple in structure and safe and reliable, all manufacturing work is operated on land, and only installation is needed on the sea, thereby saving the workload on the sea. Under normal operation conditions, the device does not affect construction. When the upper cover plate of the chain stopping frame is closed, the anchor chain can be pressed against the upper cover plate to prevent the anchor chain from retreating. The anchor chain fixing mechanism can replace shark forceps, and therefore, for ships without shark forceps, anchor chain recovering operation can also be performed, ship modification cost is saved, and the selection range of the anchor chain recovering operation ship is increased.
[0017] The anchor chain fixing device has the following advantages: the anchor chain fixing device can be used when the anchor chain recovering operation ship itself does not have shark forceps and the tonnage of the commercially available chain stopper cannot meet the anchor chain recovering load requirement, and the device needs to be used when a large chain stopping device is needed. The device not only can be used for fixing the anchor chain, but also can guide and limit the anchor chain in the guide rail range, prevent damage to surrounding equipment / personnel, and can be used bidirectionally, that is, the anchor chain can be pulled in the forward direction or the reverse direction. When the anchor chain moves to a predetermined position and needs to be fixed, the anchor chain can be fixed. The device needs to be prefabricated into an integral structure on land in advance, and only needs to be installed and fixed on the sea according to the requirement. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a structural schematic view of the anchor chain fixing and recovering mechanism.
[0019] Marking explanation in the drawing:
[0020] 1, base; 2, moving slide; 3, first cover plate; 4, second cover plate; 5, cover plate; 6, fastening piece; 7, mounting position. DETAILED DESCRIPTION
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0022] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.
[0023] The following is a reference to the appendix. Figure 1 This invention describes an anchor chain fixing and recycling mechanism and equipment.
[0024] This embodiment provides an anchor chain fixing and recovery mechanism, such as Figure 1 As shown, the anchor chain fixing and recycling mechanism is used to fix and recycle anchor chains. It includes a base 1, and there are two bases 1, which are spaced apart. Each base 1 is provided with a first cover plate 3, and the first cover plate 3 is slidably connected to the base 1. The first cover plate 3 is also provided with a first fixing port, which is located between the two bases 1. The anchor chain can pass through the first fixing port and be fixed on the first cover plate 3.
[0025] This anchor chain securing mechanism is simple in structure, safe, and reliable. All manufacturing work is carried out on land, requiring only installation at sea, thus saving on offshore workload. Under normal operating conditions, the device does not interfere with construction. When the first cover plate 3 of the chain stop frame is closed, it can hold the anchor chain in place, preventing it from sliding backward. It can replace shark clamps, therefore, anchor chain retrieval operations can be carried out even on vessels without shark clamps, saving on vessel modification costs and increasing the range of vessels available for anchor chain retrieval operations.
[0026] Furthermore, the anchor chain fixing and recycling mechanism also includes a second cover plate 4, which is located below the first cover plate 3 and has a second fixing port.
[0027] Specifically, the anchor chain retrieval mechanism is typically located at the stern of the ship. As the anchor chain passes through the stern and is guided towards the retrieval mechanism, it can be secured within it. Serving as an auxiliary device for retrieval operations, it guides and limits the anchor chain, confining it within the guide rail range to prevent injury to surrounding equipment or personnel. It can also be used in both directions. This device is simple to manufacture, easy to install, simple to operate, and safe and reliable.
[0028] Further, the first fixing opening and / or the second fixing opening is provided with a cover plate 5.
[0029] Further, as shown in the figure, the end face of the first cover plate 3 away from the second cover plate 3 is provided with a receiving groove, and the staff can temporarily put the tool into the receiving groove. Figure 1
[0030] Further, the two bases 1 are each provided with a moving slide 2, and the first cover plate 3 is slidably connected with the two bases 1 through the moving slide 2, so as to facilitate the bidirectional movement of the first cover plate 3.
[0031] Further, as shown in the figure, the first cover plate 3 includes a fastening assembly, the fastening assembly is arranged in the first cover plate 3 and is slidably connected with the moving slide 2, and the fastening assembly can lock and unlock the first cover plate 3 relative to the base 1. Figure 1
[0032] Further, the fastening assembly includes a fastening bolt and a fastening nut capable of cooperating with each other, the fastening bolt is arranged in the first cover plate 3 and the moving slide 2 and is threadedly connected with the fastening nut, and the first cover plate 3 is slid relative to the base 1 through the fastening nut and the moving slide 2. When it is needed to fix the first cover plate 3, the first cover plate 3 is only needed to be fixed at any position of the moving slide 2 by the fastening bolt, and the first cover plate 3 will be pushed to the end of the moving slide 2 under the operation of the anchor chain pulling force, so as to achieve the effect of stopping the anchor chain from continuing to move.
[0033] Optionally, the anchor chain recovery mechanism can be used when the anchor chain recovery operation ship itself has no shark clamp and the tonnage of the commercially available chain stopper cannot meet the load requirement of the anchor chain recovery and a large-scale chain stopping device is needed. In addition, the anchor chain recovery mechanism can not only be used for fixing the anchor chain, but also can guide and limit the anchor chain within the range of the guide rail, so as to prevent the anchor chain from causing damage to the surrounding equipment / personnel, and can be used bidirectionally, that is, the anchor chain can be pulled in the forward direction or the reverse direction. When the anchor chain moves to a predetermined position and needs to be fixed, the anchor chain can be fixed.
[0034] Further, the base 1 is further provided with a plurality of mounting positions 7, and the fastening assembly can fix the first cover plate 3 on the mounting position 7, and the purpose is to install a plurality of fastening assemblies according to actual needs, so as to improve the adaptability of the anchor chain recovery mechanism.
[0035] Further, the base 1 is configured as an I-shaped steel.
[0036] It should be noted that the above anchor chain fixing and recovery mechanism needs to ensure that the device is convenient to assemble and disassemble, open and close, and has overall strength. The anchor chain needs to be smooth and fast when passing through, and the chain needs to be stopped when it needs to be fixed. The overall structure of the device needs to be prefabricated on land, and only needs to be installed on the sea according to needs.
[0037] The use principle of the anchor chain fixing and recovering mechanism is as follows: first, the cover members on the first cover plate 3 and the second cover plate 4 are opened, then the anchor chain can pass through the first fixing port or the second fixing port smoothly, when the anchor chain needs to be cut and the like, the anchor chain needs to be fixed, the cover members are closed, at the same time, the first cover plate 3 is fixed by the fastening bolt, since the circular arc type chain rings of the anchor chain are buckled, the horizontal chain ring is pressed in the anchor chain fixing port, and the vertical chain ring is pressed in front of and in the middle of the first cover plate 3, so that the locking and fixing of the anchor chain are realized.
[0038] The anchor chain fixing and recovering device uses the anchor chain fixing and recovering mechanism.
[0039] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or changes can be made. Here, all the embodiments are not enumerated. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A chain securing and retrieving mechanism for securing and retrieving an anchor chain, characterized in that, The anchor chain fixing and recovering mechanism comprises a base, the base is provided with two bases which are spaced apart, the two bases are each provided with a first cover plate, the first cover plate is in sliding connection with the base, the first cover plate is further provided with a first fixing opening, the first fixing opening is located between the two bases, an anchor chain can be arranged in the first fixing opening and fixed on the first cover plate.
2. A chain cable securing and retrieving mechanism according to claim 1, characterised in that, The anchor chain fixing and recovering mechanism further comprises a second cover plate, the second cover plate is arranged below the first cover plate and is provided with a second fixing opening.
3. A chain cable securing and retrieving mechanism according to claim 2, characterised in that, The first fixing opening and / or the second fixing opening are provided with a cover plate.
4. The chain cable securing and retrieving mechanism of claim 2, wherein, The end surface of the first cover plate away from the second cover plate is provided with a receiving groove.
5. The chain cable securing and retrieving mechanism of claim 1, wherein, The two bases are each provided with a moving slide, the first cover plate is in sliding connection with the two bases through the moving slide.
6. A chain cable securing and retrieving mechanism according to claim 5, wherein, The first cover plate comprises a fastening assembly, the fastening assembly is arranged in the first cover plate and in sliding connection with the moving slide, the fastening assembly can lock and unlock the first cover plate relative to the base.
7. A chain cable securing and retrieving mechanism according to claim 6, characterised in that, The fastening assembly comprises a fastening bolt and a fastening nut which can cooperate with each other, the fastening bolt is arranged in the first cover plate and the moving slide and is in threaded connection with the fastening nut, the first cover plate is in sliding relative to the base through the fastening nut and the moving slide.
8. A chain stop recovery mechanism according to either one of claims 6 or 7, characterised in that, The base is further provided with a plurality of mounting positions, the fastening assembly can fix the first cover plate on the mounting positions.
9. Anchor line securing and retrieving mechanism according to any of claims 1-7, characterized in that The base is configured as an I-shaped steel.
10. An anchor chain securing and recovery apparatus, characterised in that, The anchor chain fixing and recovering mechanism is used.