A ship anti-entanglement anchor chain

Abstract

This invention belongs to the field of marine technology, specifically an anti-entanglement anchor chain for ships. It includes a first connecting ring, with multiple first connecting rings spaced at equal intervals. A second connecting ring is sleeved between two adjacent first connecting rings. A second connecting post is fixed to the middle of both the first and second connecting rings. A first connecting post is fixed to the middle of each second connecting post, and connecting cylinders are fixed to both ends of each first connecting post. A steel rope passes through the multiple connecting cylinders on the same side, and the bottom of the steel rope is fixedly connected to the bottommost connecting cylinder. A connecting frame is installed inside the anchor chain wheel, with a motor mounted at the top. Four coils are rotatably connected to the bottom of the connecting frame via a rotating shaft. The motor drives the coils to tighten the steel rope. Once the steel rope is taut, the connecting cylinders tighten the first and second connecting rings, thus keeping them taut during anchoring and raising, preventing entanglement.

Description

Technical Field

[0001] This invention belongs to the field of marine technology, specifically a marine anti-entanglement anchor chain. Background Technology

[0002] Ships are vehicles that can navigate or anchor in waterways for transportation or operations. The anchor chain is the core component connecting the ship and the anchor. Its core function is to transmit the anchor's gripping force and fix the ship's position. At the same time, it assists the anchor in sinking into the mud and stabilizing itself through its own weight. It is a key piece of equipment for ship mooring and emergency braking. The anchor chain needs to be used in conjunction with the anchor winch. When dropping anchor, the anchor winch releases the brake to allow the anchor chain to descend slowly with the anchor. When raising anchor, the anchor winch retrieves the chain by engaging the chain links with the drum. When moored, the anchor winch brake and the double chain locking mechanism prevent the anchor chain from slipping out and ensure the stability of the ship.

[0003] A Chinese patent with publication number CN119953491B discloses an anti-tangling anchor chain for ship mooring, which solves the problem that the chain of the anti-tangling anchor chain is prone to twisting when anchoring, making it inconvenient to automatically adjust the twist and reposition the chain when retrieving the anchor, and also making it inconvenient for staff to monitor the bending status of the anchor chain in real time.

[0004] When existing anchor chains are used, they are anchored and raised by an anchor winch. However, when anchoring, the weight of the anchor chain is needed to help the anchor sink into the mud, which can cause some of the anchor chain to stack together. When raising the anchor chain, the chain is wound up, and some parts may become entangled. This can cause the entangled parts to become knotted and unable to be wound up properly, affecting normal use.

[0005] Therefore, the present invention provides a ship anti-entanglement anchor chain. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a ship anti-entanglement anchor chain, including a first connecting ring, multiple first connecting rings are arranged at equal intervals, a second connecting ring is sleeved between two adjacent first connecting rings, a second connecting post is fixed in the middle of both the first connecting ring and the second connecting ring, the uppermost first connecting ring is connected to the anchor chain wheel of the anchor winch, and the lowermost first connecting ring is connected to the anchor.

[0008] The first connecting column is fixed in the middle of the second connecting column. Connecting cylinders are fixed at both ends of the first connecting column. A steel rope passes through the inside of multiple connecting cylinders on the same side, and the bottom of the steel rope is fixedly connected to the bottommost connecting cylinder. A connecting frame is set inside the anchor chain wheel. A motor is installed at the top of the connecting frame. A gear plate is fixed at the end of the motor shaft. Four winding spools are rotatably connected around the bottom of the connecting frame through a shaft. A second gear is fixed at the end of the winding spool shaft. The second gear meshes with the gear plate. Multiple steel ropes are wound inside the multiple winding spools respectively.

[0009] When the motor rotates, it drives multiple winding reels to wind up the steel rope. When the steel rope is tightened, it drives multiple connecting drums to adjust their angles.

[0010] Preferably, multiple connecting discs are provided between two adjacent connecting cylinders. The uppermost connecting disc is fixedly connected to the upper connecting cylinder, and the lowermost connecting disc is fixedly connected to the lower connecting cylinder. A first connecting hole is provided in the middle of the connecting disc, and the steel rope passes through the interior of the multiple first connecting holes.

[0011] Preferably, the external connection of the connecting plate has multiple elastic connecting strips, and the other end of the elastic connecting strip is connected to the adjacent connecting plate;

[0012] Among them, the elastic connecting strip has the elasticity to deform within the range of tolerance.

[0013] Preferably, connecting balls are fixed at both the top and bottom of the elastic connecting strip, and the connecting balls are rotatably connected to the outside of the connecting disc;

[0014] When the relative angle between the connecting discs changes, the connecting ball allows the elastic connecting strip to rotate to a certain extent, thereby adjusting the angle.

[0015] Preferably, a rotating rod is rotatably connected inside the first connecting column, and rotating frames are fixed at both ends of the rotating rod. A steel rope passes through the middle of the rotating frames. A first coil spring is fixed outside the rotating rod, and the other end of the first coil spring is fixedly connected to the first connecting column. A first gear is fixed in the middle of the rotating rod. A pressing plate is provided at the top and bottom of the first connecting column. A first toothed plate is fixed on the side of the pressing plate near the first connecting column. The first toothed plate is slidably connected inside the first connecting column. The two first toothed plates are centrally symmetrical about the axis of the rotating rod, and both first toothed plates are meshed with the first gear.

[0016] When the steel rope is taut, it drives the rotating frame to rotate, which in turn drives the first gear to move the first toothed plate away from the first connecting column.

[0017] Preferably, rotating rollers are rotatably connected to both sides of the rotating frame, and the rotating rollers can be closely attached to the steel rope.

[0018] Preferably, a through hole is provided on one side of the extrusion plate, and the first toothed plate of another extrusion plate can be inserted into the through hole.

[0019] Preferably, a second connecting hole is provided on both sides of the extrusion plate, and a clamping plate is provided on both sides of the extrusion plate. Two connecting shafts are fixed on the side of the clamping plate near the extrusion plate. The connecting shafts can be rotatably connected to the inside of the second connecting hole. A toothed surface is provided on the side of the clamping plate near the extrusion plate. Extrusion holes are provided on both sides inside the extrusion plate. A push plate is slidably connected inside the extrusion hole. One side of the push plate is engaged with the toothed surface.

[0020] Preferably, a guide slope is provided on the side of the clamping plate away from the tooth surface, and the guide slope can be close to the inner side of the first connecting ring and the second connecting ring. Limiting protrusions are fixed on both sides of the extrusion plate, and the limiting protrusions can limit the rotation angle of the clamping plate.

[0021] Preferably, a second coil spring is fixed to the outside of the connecting shaft, and the other end of the second coil spring is fixedly connected to the inner wall of the second connecting hole.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. The anti-tangling anchor chain of the present invention uses a motor to drive a winding reel to wind up a steel rope. After the steel rope is taut, it drives a connecting cylinder to tighten the first connecting ring and the second connecting ring, thereby keeping the first connecting ring and the second connecting ring taut during anchoring and anchoring to prevent tangling between them.

[0024] 2. The anti-entanglement anchor chain of the present invention can push the first connecting ring and the second connecting ring during the anchoring and anchoring processes by means of the compression plate and the clamping plate, so as to keep the first connecting ring and the second connecting ring in a state of end-to-end connection, thereby further preventing entanglement during anchoring and anchoring. Attached Figure Description

[0025] The invention will now be further described with reference to the accompanying drawings.

[0026] Figure 1 This is a perspective view of the present invention;

[0027] Figure 2 This is a schematic diagram of the motor structure in this invention;

[0028] Figure 3 This is a schematic diagram of the connection state of the first connecting ring and the second connecting ring in this invention;

[0029] Figure 4 This is a schematic diagram of the first connecting ring structure in this invention;

[0030] Figure 5 This is a schematic diagram of the connecting disk structure in this invention;

[0031] Figure 6 This is a schematic diagram of the internal structure of the connecting cylinder in this invention;

[0032] Figure 7 This is a schematic diagram of the extrusion plate structure in this invention;

[0033] Figure 8 This is a schematic diagram of the clamping plate structure in this invention.

[0034] In the diagram: 1. First connecting ring; 11. Connecting cylinder; 111. First connecting post; 112. Rotating rod; 113. First coil spring; 114. Rotating frame; 115. Rotating roller; 116. First gear; 12. Connecting disc; 121. First connecting hole; 122. Elastic connecting strip; 123. Connecting ball; 13. Extrusion plate; 131. First toothed plate; 132. Through hole; 133. Push plate; 134. Extrusion hole; 135. Second connecting hole; 136. Limiting protrusion; 14. Second connecting post; 15. Clamping plate; 151. Guide slope; 152. Tooth surface; 153. Connecting shaft; 154. Second coil spring; 2. Second connecting ring; 3. Motor; 31. Steel rope; 32. Connecting frame; 321. Gear disc; 322. Winding reel; 323. Second gear. Detailed Implementation

[0035] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0036] like Figures 1 to 4 As shown in the figure, a ship anti-entanglement anchor chain according to an embodiment of the present invention includes a first connecting ring 1, multiple first connecting rings 1 are arranged at equal intervals, a second connecting ring 2 is sleeved between two adjacent first connecting rings 1, a second connecting post 14 is fixed in the middle of both the first connecting ring 1 and the second connecting ring 2, the uppermost first connecting ring 1 is connected to the anchor chain wheel of the anchor winch, and the lowermost first connecting ring 1 is connected to the anchor.

[0037] The first connecting column 111 is fixed in the middle of the second connecting column 14. Connecting cylinders 11 are fixed at both ends of the first connecting column 111. A steel rope 31 passes through the inside of multiple connecting cylinders 11 on the same side, and the bottom of the steel rope 31 is fixedly connected to the bottommost connecting cylinder 11. A connecting frame 32 is provided inside the anchor chain wheel. A motor 3 is installed at the top of the connecting frame 32. A gear 321 is fixed at the end of the shaft of the motor 3. Four winding spools 322 are rotatably connected around the bottom of the connecting frame 32 through the shaft. A second gear 323 is fixed at the end of the shaft of the winding spool 322. The second gear 323 is meshed with the gear 321. Multiple steel ropes 31 are wound inside the multiple winding spools 322 respectively.

[0038] When the motor 3 rotates, it drives multiple winding reels 322 to wind up the steel rope 31. When the steel rope 31 is tightened, it drives multiple connecting drums 11 to adjust their angles.

[0039] When a ship needs to temporarily anchor in a certain location, it needs to be secured to the seabed with an anchor to moor the ship. In the initial state of mooring, the anchor winch winds up the anchor chain outside the chain wheel. Then, when anchoring is required, the anchor winch drives the chain wheel to unwind the anchor chain. At this time, the anchor chain is conveyed into the water through the ship's chain canister. The anchor at the bottom of the chain will enter the water first, and with its own weight and the weight of the anchor chain, it will sink to the bottom, thus completing the anchoring work. However, during the anchoring process, part of the anchor chain may pile up in the mud at the bottom of the seabed, and there is a certain probability that the anchor chain will become entangled. If the anchor is raised directly by the anchor winch, the entangled part will become knotted. When the anchor chain is wound up to the knotted position, the large volume of the knotted part will get stuck at the bottom of the chain canister, making it impossible to retract the anchor chain and anchor normally. This requires the staff to handle it, which is quite troublesome.

[0040] During the anchoring process, the first connecting ring 1 and the second connecting ring 2 are unwound downwards. At the same time, the motor 3 is started to rotate. The motor 3 drives multiple second gears 323 to rotate through the gear disc 321. The second gears 323 drive the winding reel 322 to wind up the steel rope 31. The steel rope 31 gradually tightens inside the connecting cylinder 11. When the first connecting ring 1 and the second connecting ring 2 are output from the anchor chain cylinder into the water, they will remain in a relatively tight state, so that the first connecting ring 1 and the second connecting ring 2 can remain in a relatively vertical state to push the anchor to the bottom of the water. When the anchor contacts the mud layer at the bottom of the water, the motor 3 is started to rotate in the opposite direction. The motor 3 drives the winding reel 322 to unwind the steel rope 31. The unwinding speed is kept uniform, so that the positions of the first connecting ring 1 and the second connecting ring 2 near the anchor are regularly placed on the mud surface.

[0041] When anchoring, the motor 3 rotates forward again to tighten the steel rope 31. At this time, the first connecting ring 1 and the second connecting ring 2 will be tightened due to the action of the connecting cylinder 11, thus preventing them from tangling. The anchor chain wheel of the anchor winch will wind up the first connecting ring 1 and the second connecting ring 2. However, because the first connecting ring 1 and the second connecting ring 2 are in a taut state, it is difficult for the anchor chain wheel to tighten. Therefore, whenever the anchor chain wheel winds up one first connecting ring 1 and the second connecting ring 2, the motor 3 will rotate in the opposite direction for a certain distance. At this time, the steel rope 31 will loosen for a certain distance, but because the first connecting ring 1 and the second connecting ring 2 are wound outside the anchor chain wheel, they will be tightened, thus offsetting this distance and keeping the unwound first connecting ring 1 and the second connecting ring 2 in a taut state at all times.

[0042] like Figures 1 to 5As shown, multiple connecting discs 12 are provided between two adjacent connecting cylinders 11. The uppermost connecting disc 12 is fixedly connected to the upper connecting cylinder 11, and the lowermost connecting disc 12 is fixedly connected to the lower connecting cylinder 11. A first connecting hole 121 is opened in the middle of the connecting disc 12, and the steel rope 31 passes through the interior of the multiple first connecting holes 121.

[0043] When in use, adjacent connecting cylinders 11 are not connected, which causes the steel rope 31 to tighten the connecting cylinders 11. Therefore, multiple connecting discs 12 are evenly spaced between the connecting cylinders 11. When the first connecting ring 1 and the second connecting ring 2 are stacked, the relative angle between two adjacent connecting cylinders 11 will change. At this time, the space between the connecting discs 12 can facilitate the change of angle between the connecting cylinders 11. When the connecting cylinders 11 need to be tightened, the steel rope 31 will tighten through the first connecting hole 121 to drive the connecting discs 12 to tighten, thereby making it easy for the connecting cylinders 11 to be tightened.

[0044] like Figures 1 to 5 As shown, the external connection of the connecting plate 12 is provided by a plurality of elastic connecting strips 122, and the other end of the elastic connecting strip 122 is connected to the adjacent connecting plate 12.

[0045] Among them, the elastic connecting strip 122 has elasticity and can deform within the bearing range;

[0046] When deformation is required between the connecting discs 12, misalignment may occur. Therefore, an elastic connecting strip 122 is provided between the connecting discs 12. The elastic connecting strip 122 supports the connecting discs 12. The elastic connecting strip 122 can deform to a certain extent to adapt to the angle changes of the first connecting ring 1 and the second connecting ring 2, thereby maintaining the connection between the connecting discs 12.

[0047] like Figures 1 to 5 As shown, connecting balls 123 are fixed at both the top and bottom of the elastic connecting strip 122, and the connecting balls 123 are rotatably connected to the outside of the connecting plate 12.

[0048] When the relative angle between the connecting discs 12 changes, the connecting ball 123 can make the elastic connecting strip 122 rotate to a certain extent, thereby adjusting the angle.

[0049] When the angle between the connecting cylinder 11 of the first connecting ring 1 and the second connecting ring 2 changes, in the initial state, the connecting ball 123 will drive the multiple connecting discs 12 in the middle to rotate to adapt to the current angle. When the angle changes to the limit of the connecting ball 123, the elastic connecting strip 122 adapts to the change of angle with its own elasticity.

[0050] like Figures 1 to 8As shown, a rotating rod 112 is rotatably connected inside the first connecting column 111. A rotating frame 114 is fixed at both ends of the rotating rod 112. A steel rope 31 passes through the middle of the rotating frame 114. A first coil spring 113 is fixed to the outside of the rotating rod 112. The other end of the first coil spring 113 is fixedly connected to the first connecting column 111. A first gear 116 is fixed to the middle of the rotating rod 112. A pressing plate 13 is provided at both the top and bottom of the first connecting column 111. A first toothed plate 131 is fixed to the side of the pressing plate 13 near the first connecting column 111. The first toothed plate 131 is slidably connected inside the first connecting column 111. The two first toothed plates 131 are centrally symmetrical about the axis of the rotating rod 112. Both first toothed plates 131 are meshed with the first gear 116.

[0051] When the steel rope 31 is taut, it drives the rotating frame 114 to rotate, which in turn drives the first gear 116 to drive the first toothed plate 131 to move the extrusion plate 13 away from the first connecting column 111.

[0052] In the initial state, the steel rope 31 is not taut. At this time, the first coil spring 113 drives the rotating rod 112 to rotate, and the rotating rod 112 drives the rotating frame 114 to rotate. The rotating frame 114 can wind up part of the steel rope 31 multiple times. The extrusion plate 13 is in close contact with the first connecting post 111. When the steel rope 31 is taut, the steel rope 31 will drive the rotating frame 114 to unwind multiple times. At this time, the rotating frame 114 drives the rotating rod 112 to rotate in the opposite direction. The rotating rod 112 drives the first gear 116 to rotate. The first gear 116 drives two first toothed plates 131 to extend from inside the first connecting post 111. At this time, the first toothed plates 131 drive the extrusion plate 13 to move towards the end of the first connecting ring 1 or the second connecting ring 2. The extrusion plate 13 will push the end of the first connecting ring 1 or the second connecting ring 2 connected inside to be close to the inner wall of the connected first connecting ring 1 or the second connecting ring 2, thereby making the connection between the first connecting ring 1 and the second connecting ring 2 tight and preventing the first connecting ring 1 and the second connecting ring 2 from tangling.

[0053] like Figures 1 to 8 As shown, rotating rollers 115 are rotatably connected to both sides of the rotating frame 114, and the rotating rollers 115 can be closely attached to the steel rope 31.

[0054] After the rotating frame 114 finishes unwinding, the steel rope 31 may continue to move and tighten, so the steel rope 31 will rub against the rotating frame 114. In order to reduce the wear caused by friction, a rotating roller 115 is set to replace the rotating frame 114 in rubbing against the steel rope 31, thereby reducing a lot of friction.

[0055] like Figures 1 to 8 As shown, a through hole 132 is provided on one side of the interior of the extrusion plate 13, and the first toothed plate 131 of another extrusion plate 13 can be inserted into the interior of the through hole 132.

[0056] During the lifting and lowering of the first toothed plate 131, it will interfere with the extrusion plate 13 in another direction. In order to prevent interference, a through hole 132 is opened inside the extrusion plate 13 to provide space for the movement of the first toothed plate 131.

[0057] like Figures 1 to 8 As shown, the extrusion plate 13 has a second connecting hole 135 on both sides, and a clamping plate 15 is provided on both sides of the extrusion plate 13. Two connecting shafts 153 are fixed on the side of the clamping plate 15 near the extrusion plate 13. The connecting shafts 153 can be rotatably connected to the inside of the second connecting hole 135. A toothed surface 152 is provided on the side of the clamping plate 15 near the extrusion plate 13. Extrusion holes 134 are provided on both sides inside the extrusion plate 13. A push plate 133 is slidably connected inside the extrusion hole 134. One side of the push plate 133 is engaged with the toothed surface 152.

[0058] At the connection position of the first connecting ring 1 and the second connecting ring 2, the connection of the first connecting ring 1 and the second connecting ring 2 may be in a non-central position. Therefore, the first connecting ring 1 and the second connecting ring 2 cannot be stably fixed by the extrusion plate 13 alone. When the first connecting ring 1 or the second connecting ring 2 contacts the extrusion plate 13, it will contact the push plate 133 on one side. The push plate 133 is pressed into the extrusion hole 134. The push plate 133 drives the tooth surface 152 to rotate the clamping plate 15 towards the center of the extrusion plate 13. At this time, the clamping plate 15 can push the first connecting ring 1 or the second connecting ring 2 towards the center of the extrusion plate 13, thereby correcting the position of the first connecting ring 1 and the second connecting ring 2.

[0059] like Figures 1 to 8 As shown, a guide slope 151 is provided on the side of the clamping plate 15 away from the tooth surface 152. The guide slope 151 can be close to the inner side of the first connecting ring 1 and the second connecting ring 2. Limiting protrusions 136 are fixed on both sides of the extrusion plate 13. The limiting protrusions 136 can limit the rotation angle of the clamping plate 15.

[0060] In order for the clamping plate 15 to be able to push the guide slope 151 close to the inner side of the first connecting ring 1 and the second connecting ring 2, thereby preventing the gap from being too large, the limiting protrusion 136 can limit the opening angle of the clamping plate 15, thereby ensuring that the opening angle of the clamping plate 15 is convenient for it to push the first connecting ring 1 or the second connecting ring 2.

[0061] like Figures 1 to 8 As shown, a second coil spring 154 is fixed to the outside of the connecting shaft 153, and the other end of the second coil spring 154 is fixedly connected to the inner wall of the second connecting hole 135.

[0062] When the pressing plate 13 is reset after use, the second coil spring 154 will drive the connecting shaft 153 to rotate in the opposite direction, thereby causing the clamping plate 15 to automatically reset.

[0063] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ship anti-entanglement anchor chain, characterized in that: It includes a first connecting ring, multiple first connecting rings are equally spaced, a second connecting ring is sleeved between two adjacent first connecting rings, a second connecting post is fixed in the middle of both the first and second connecting rings, the uppermost first connecting ring is connected to the anchor chain wheel of the anchor winch, and the lowermost first connecting ring is connected to the anchor. The first connecting column is fixed in the middle of the second connecting column. Connecting cylinders are fixed at both ends of the first connecting column. A steel rope passes through the inside of multiple connecting cylinders on the same side, and the bottom of the steel rope is fixedly connected to the bottommost connecting cylinder. A connecting frame is set inside the anchor chain wheel. A motor is installed at the top of the connecting frame. A gear plate is fixed at the end of the motor shaft. Four winding spools are rotatably connected around the bottom of the connecting frame through a shaft. A second gear is fixed at the end of the winding spool shaft. The second gear meshes with the gear plate. Multiple steel ropes are wound inside the multiple winding spools respectively. When the motor rotates, it drives multiple winding reels to wind up the steel rope. When the steel rope is tightened, it drives multiple connecting drums to adjust their angles. A rotating rod is rotatably connected inside the first connecting column. A rotating frame is fixed at both ends of the rotating rod. A steel rope passes through the middle of the rotating frame. A first coil spring is fixed to the outside of the rotating rod. The other end of the first coil spring is fixedly connected to the first connecting column. A first gear is fixed to the middle of the rotating rod. A pressing plate is provided at the top and bottom of the first connecting column. A first toothed plate is fixed to the side of the pressing plate near the first connecting column. The first toothed plate is slidably connected inside the first connecting column. The two first toothed plates are centrally symmetrical about the axis of the rotating rod. Both first toothed plates are meshed with the first gear. When the steel rope is taut, it drives the rotating frame to rotate, which in turn drives the first gear to move the first toothed plate away from the first connecting column.

2. The anti-entanglement anchor chain for ships according to claim 1, characterized in that: Multiple connecting discs are provided between two adjacent connecting cylinders. The uppermost connecting disc is fixedly connected to the upper connecting cylinder, and the lowermost connecting disc is fixedly connected to the lower connecting cylinder. A first connecting hole is opened in the middle of the connecting disc, and the steel rope passes through the interior of multiple first connecting holes.

3. The anti-entanglement anchor chain for ships according to claim 2, characterized in that: The external connection of the connecting plate has multiple elastic connecting strips, and the other end of the elastic connecting strip is connected to the adjacent connecting plate; Among them, the elastic connecting strip has the elasticity to deform within the range of tolerance.

4. The anti-entanglement anchor chain for ships according to claim 3, characterized in that: Connecting balls are fixed at both the top and bottom of the elastic connecting strip, and the connecting balls are rotatably connected to the outside of the connecting plate; When the relative angle between the connecting discs changes, the connecting ball allows the elastic connecting strip to rotate to a certain extent, thereby adjusting the angle.

5. The anti-entanglement anchor chain for ships according to claim 1, characterized in that: Both sides of the rotating frame are rotatably connected to rotating rollers, which can be closely attached to the steel rope.

6. The anti-entanglement anchor chain for ships according to claim 1, characterized in that: A through hole is provided on one side of the extrusion plate, and the first toothed plate of another extrusion plate can be inserted into the through hole.

7. The anti-entanglement anchor chain for ships according to claim 1, characterized in that: The extrusion plate has a second connecting hole on both sides and a clamping plate on both sides. Two connecting shafts are fixed on the side of the clamping plate near the extrusion plate. The connecting shafts can be rotatably connected inside the second connecting hole. The side of the clamping plate near the extrusion plate has a toothed surface. Extrusion holes are opened on both sides inside the extrusion plate. A push plate is slidably connected inside the extrusion hole. One side of the push plate is engaged with the toothed surface.

8. A ship anti-entanglement anchor chain according to claim 7, characterized in that: A guide slope is provided on the side of the clamping plate away from the tooth surface. The guide slope can be close to the inner side of the first connecting ring and the second connecting ring. Limiting protrusions are fixed on both sides of the extrusion plate. The limiting protrusions can limit the rotation angle of the clamping plate.

9. A ship anti-entanglement anchor chain according to claim 7, characterized in that: A second coil spring is fixed to the outside of the connecting shaft, and the other end of the second coil spring is fixedly connected to the inner wall of the second connecting hole.

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