Impact energy absorption device and law enforcement ship

Abstract

The impact energy absorption device is configured to be connected to a ship body and comprises a base, an impact body and an energy absorption assembly, the base is configured to be connected to the ship body, the impact body and the base are arranged in a spaced mode and can slide close to or away from the base, and an impact tip is formed on the side, away from the ship body, of the impact body; the energy absorption assembly is connected to the impactor and the base and used for generating elastic restoring force for resisting the impactor to slide close to or away from the base. The problems that the bow and the broadside of the law enforcement ship are designed in a non-aggressive mode, the contact area between the ship and a target is large, the pressure intensity is small, and the hull structure of the opposite side cannot be effectively damaged in tactical impact can be effectively solved.

Description

Technical Field

[0001] This invention relates to the field of law enforcement vessel technology, specifically to an impact energy absorption device and a law enforcement vessel. Background Technology

[0002] In maritime rights protection and law enforcement, ship collisions are an unavoidable tactical maneuver. To reduce damage to law enforcement vessels, research on relevant anti-collision structures has emerged.

[0003] For example, Chinese utility model patent CN215554008U, entitled "Anti-collision Law Enforcement Boat," includes a first anti-collision component, a second anti-collision component, and a third anti-collision component. The top of the hull has a groove. The first anti-collision component includes a first connecting rod fixed to the right outer wall of the hull and a first airbag fixedly connected to the first connecting rod. The second anti-collision component includes a second connecting rod fixed to the left outer wall of the hull and a second airbag fixedly connected to the second connecting rod. The third anti-collision component includes a third connecting rod fixed to the left side of the hull and a third airbag fixedly connected to the third connecting rod. This device prevents damage to the right outer wall of the hull from impact through the first airbag, the left outer wall of the hull from impact through the second airbag, and the left side of the hull from impact through the third airbag, achieving an all-around anti-collision effect with excellent collision protection.

[0004] However, existing collision avoidance vessels can only perform defensive or self-protection operations such as collision avoidance. They have a non-offensive design at the bow and sides, resulting in a large contact area with the target and low pressure. They cannot effectively damage the hull structure of the other vessel in tactical collisions, and their deterrent power is insufficient. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose an impact energy absorption device and law enforcement vessel to solve the technical problem that the bow and sides of the ship are non-offensive designs with large contact area and low pressure with the target, which makes it impossible to effectively damage the hull structure of the opponent in tactical impacts.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: In a first aspect, the present invention provides an impact energy absorption device disposed on a ship hull, comprising: A base configured to be connected to the hull; An impactor, spaced apart from the base and capable of sliding closer to or further away from the base, has an impact tip formed on the side of the impactor facing away from the hull; and An energy-absorbing component, connected to the impactor and the base, is used to generate an elastic restoring force to resist the sliding of the impactor relative to the base as it moves closer to or further away.

[0007] In some embodiments, the energy-absorbing assembly includes at least one hinge and at least one energy-absorbing element. The hinge includes two first links, which are rotatably connected at their middle portions. One end of each first link is rotatably connected to the impactor, and the other end is slidably connected to the base. The energy-absorbing element is disposed on one or both sides of the impactor and connected to the base and the other end of one of the first links. The length of the energy-absorbing element is adjustable and is used to automatically reset after pushing the first link to slide relative to the base, so as to resist the impactor from sliding closer to or further away from the base.

[0008] In some embodiments, the energy-absorbing assembly further includes two fixed seats, one end of each fixed seat is connected to the impactor, and the other end is detachably connected to one end of each of the two first connecting rods, and one end of each first connecting rod is rotatable relative to the fixed seat.

[0009] In some embodiments, the energy-absorbing assembly further includes at least one second link, one end of which is rotatably connected to the fixed base and the other end of which is rotatably connected to the energy-absorbing element.

[0010] In some embodiments, the energy-absorbing assembly further includes at least two connectors and at least two third links. The connectors are arranged in a one-to-one correspondence with the first links and are respectively connected to the other end of the first links. One end of the third link is rotatably connected to the connector and the other end is rotatably connected to the energy-absorbing component.

[0011] In some embodiments, the energy-absorbing assembly has multiple hinges, which are spaced apart from each other, and one end of each of the multiple first connecting rods is rotatably connected to the fixed base.

[0012] In some embodiments, the energy-absorbing assembly includes multiple energy-absorbing elements symmetrically distributed on both sides of the impactor. The energy-absorbing assembly also includes a fourth link, with the other ends of the second link and the third link rotatably connected to the fourth link, and the multiple energy-absorbing elements spaced apart along the length of the fourth link.

[0013] In some embodiments, the base has a receiving cavity relative to the hull, and the impact energy absorption device further includes a buffer air cushion, which is built into the receiving cavity and connected to the base, and the buffer air cushion abuts against the hull.

[0014] In some embodiments, the impactor has a weight-reducing groove that extends through the impactor.

[0015] Secondly, the present invention also provides an law enforcement vessel, including a hull and a plurality of impact energy absorption devices as described above, wherein the plurality of bases are evenly distributed along the surface of the hull and are all connected to the hull.

[0016] Compared with existing technologies, the beneficial effects of the impact energy-absorbing device and law enforcement vessel provided by this invention include: a base connected to the hull, an impactor spaced apart from the base and capable of sliding closer to or further away from the base, and an impact tip formed on the side of the impactor facing away from the hull; an energy-absorbing component connected to both the impactor and the base, and capable of generating an elastic restoring force to resist the impactor's sliding relative to the base. Compared with existing technologies, by setting the impact tip on the hull facing away from the hull, it has the characteristics of small contact area and high pressure in tactical impacts, effectively impacting or damaging the structure of the opponent's hull. At the same time, an energy-absorbing component is also provided between the impactor and the base, which can convert the impact force during the impact process into reciprocating sliding of the impactor relative to the base, thereby absorbing the impact force. This can effectively reduce the impact on the vessel itself and inflict maximum damage on the opponent's hull. It can solve the technical problem in existing technologies where the bow and sides are non-offensive designs with large contact areas and low pressure with the target, making it impossible to effectively damage the structure of the opponent's hull in tactical impacts. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an impact energy absorption device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram from another perspective of an impact energy absorption device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of an energy-absorbing component provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of an energy-absorbing component provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of multiple impact energy absorption devices connected to the hull according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: Hull 100; Base 200; Impact body 300; Impact tip 310; Weight reduction groove 320; Energy absorption component 400; Hinge 410; First link 411; Energy absorption component 420; Buffer outer tube 421; Piston rod 422; Buffer head 423; Spring 424; Fixed seat 430; Second link 440; Connector 450; Third link 460; Fourth link 470; Buffer air cushion 500. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] To address the technical problem that law enforcement vessels, with their non-offensive bow and sides having a large contact area and low pressure with the target, cannot effectively damage the structure of the opposing vessel 100 in tactical impacts, this invention provides an impact energy-absorbing device and a law enforcement vessel. This device achieves this by placing an impact tip 310 on the hull 100 away from the hull itself. In tactical impacts, this tip has a small contact area and high pressure, effectively impacting or damaging the structure of the opposing vessel 100. Simultaneously, an energy-absorbing component 400 is installed between the impactor 300 and the base 200, converting the impact force into a reciprocating sliding motion of the impactor 300 relative to the base 200, thereby absorbing the impact force. This effectively reduces the impact on the vessel itself while maximizing damage to the opposing vessel 100.

[0021] Please see Figures 1 to 4 , Figure 1 , Figure 2 This is a schematic diagram of an impact energy absorption device and a law enforcement vessel according to an embodiment of the present invention. The impact energy absorption device is disposed on the hull 100 and includes: a base 200, an impact body 300 and an energy absorption component 400. The base 200 is configured to be connected to the hull 100. The impact body 300 is spaced apart from the base 200 and can slide close to or away from the base 200. An impact tip 310 is formed on the side of the impact body 300 away from the hull 100. The energy absorption component 400 is connected to the impact body 300 and the base 200 and is used to generate an elastic restoring force to resist the sliding of the impact body 300 relative to the base 200.

[0022] Compared to existing technologies, this device, by setting an impact tip 310 on the hull 100 away from the hull 100, has the characteristics of small contact area and high pressure in tactical impacts, which can effectively impact or damage the structure of the opponent's hull 100. At the same time, an energy-absorbing component 400 is also set between the impact body 300 and the base 200, which can convert the impact force during the impact process into the impact body 300 sliding back and forth relative to the base 200, thereby absorbing the impact force. This can effectively reduce the impact on its own vessel and inflict maximum damage on the opponent's hull 100. It can solve the technical problem in existing technologies where the bow and sides of law enforcement vessels are non-offensive designs with large contact areas and low pressure with the target, making it impossible to effectively damage the structure of the opponent's hull 100 in tactical impacts.

[0023] Furthermore, in maritime rights protection and law enforcement, ship collisions are an unavoidable tactical maneuver. However, existing collision avoidance vessels can only perform defensive or self-protection operations such as collision avoidance. Their bows and sides are non-offensive designs, resulting in a large contact area with the target and low pressure, which makes it impossible to effectively damage the structure of the other ship in a tactical collision, thus lacking deterrent power. Therefore, there is a need to provide a collision energy absorption device that can solve the technical problem of law enforcement vessels having non-offensive designs at the bow and sides, a large contact area with the target, and low pressure, making it impossible to effectively damage the structure of the other ship in a tactical collision.

[0024] Furthermore, multiple threaded mounting holes are provided on both sides of the base 200. The base 200 is detachably connected to the law enforcement vessel through multiple fasteners. The fasteners here are screws or bolts that are common and easy to purchase on the market. This is a conventional setting known to those skilled in the art and will not be described in detail here.

[0025] In addition, in some embodiments, in order to reduce the size of the impact device and improve its aesthetics, the base 200 has a receiving groove on the side away from the law enforcement vessel, and the receiving groove is covered and sealed by two first cover plates and two second cover plates, which will not be described in detail here.

[0026] Furthermore, the base 200, the first cover plate, and the second cover plate are all made of 5083 marine rust-proof aluminum alloy plate, which is cut and bent by laser cutting; all butt welds are made of TIG welding to ensure connection strength, which will not be elaborated here.

[0027] In this embodiment, as Figure 1 As shown, the impactor 300 has a weight reduction groove 320 that penetrates the impactor 300.

[0028] To reduce the weight of the impactor 300, a weight-reducing groove 320 is provided on the impactor 300 and the impact tip 310 is adapted to form a hollow structure.

[0029] In some embodiments, the impact tip 310 is positioned off-center from the impact body 300, and the included angle of the impact tip 310 is 90°.

[0030] Furthermore, the impactor 300 is wedge-shaped, and the impact tip 310 of the impactor 300 is made of high-strength alloy steel with grade 34CrNiMo6. It is forged to form an internal streamlined structure, and then a 90-degree included-angle cutting edge is precision machined by CNC machine tool. Subsequently, the cutting edge and the main stress surface are vacuum carburized to achieve a surface hardness of HRC60 or higher, while the core maintains a toughness of HRC35-40. This will not be elaborated here.

[0031] In this embodiment, as Figures 1 to 3As shown, the energy-absorbing assembly 400 includes at least one hinge 410 and at least one energy-absorbing component 420. The hinge 410 includes two first connecting rods 411, which are rotatably connected at their middle parts. One end of each first connecting rod 411 is rotatably connected to the impactor 300, and the other end is slidably connected to the base 200. The energy-absorbing component 420 is disposed on one or both sides of the impactor 300 and connected to the base 200 and the other end of one of the first connecting rods 411. The length of the energy-absorbing component 420 is adjustable and is used to push the first connecting rod 411 to slide relative to the base 200 and then automatically reset to resist the impactor 300 from sliding closer to or further away from the base 200.

[0032] The energy-absorbing assembly 400 consists of at least one hinge 410 and at least one energy-absorbing element 420. When the impactor 300 is impacted, it will compress the two first connecting rods 411, causing the two first connecting rods 411 to rotate relative to each other, and transfer the compression or stretching of the hinge rods to the energy-absorbing element 420 located on both sides or one side of the impactor 300, thereby using the elastic force of the energy-absorbing element 420 to form a counteracting effect.

[0033] Furthermore, by setting a scissor-shaped hinge 410 and an energy-absorbing component 420, the force can be transformed from the first direction to a direction perpendicular to the first direction, effectively shortening the thickness dimension of the impact device. This not only reduces the volume of the impact device and improves its aesthetics, but also achieves the best buffering and energy-absorbing effect.

[0034] Furthermore, in some embodiments, such as Figure 4 As shown, the energy-absorbing component 420 is a common and readily available hydraulic damper. The hydraulic damper includes a damper outer tube 421, at least one piston rod 422, and at least one buffer head 423. One end of the piston rod 422 is slidably inserted into the damper outer tube 421 and is sealed to the damper outer tube 421. The buffer head 423 is connected to the other end of the piston rod 422. For reference, please refer to the Chinese utility model patent with publication number CN221665173U, entitled "A Oil-Free Hydraulic Damper". Further details are omitted here.

[0035] Furthermore, such as Figure 4 As shown, piston rods 422 are provided at both ends of the outer tube 421 of the buffer.

[0036] Furthermore, such as Figure 4 As shown, a spring 424 is also provided between the buffer head 423 and the buffer outer tube 421 to enhance the buffering or damping effect, which will not be described in detail here.

[0037] In some embodiments, the spring 424 is a standard heavy-duty cylindrical helical compression spring made of 60Si2MnA spring steel, and the hydraulic buffer is a hydraulic damper with a damping coefficient that matches the functional spring. Together they form the energy-absorbing core of the compression assembly, which will not be elaborated here.

[0038] In addition, in some embodiments, the same number of energy-absorbing elements 420 are provided on both sides of the impactor 300, which can improve safety and stability during impact.

[0039] In this embodiment, as Figure 2 , Figure 3 As shown, the energy absorption assembly 400 also includes two fixed seats 430. One end of each fixed seat 430 is connected to the impactor 300, and the other end is detachably connected to one end of each of the two first connecting rods 411. One end of the first connecting rod 411 can rotate relative to the fixed seat 430.

[0040] The mounting base 430 is used to connect the two first links 411 to the impact body 300.

[0041] Furthermore, both the impactor 300 and the fixing seat 430 are provided with multiple mounting holes, and the fixing seat 430 and the impactor 300 are detachably connected through the mounting holes and fasteners. The fasteners here are conventional settings known to those skilled in the art, and will not be described in detail here.

[0042] In one embodiment, please refer to Figure 2 , Figure 3 The energy-absorbing component 400 also includes at least one second link 440, one end of which is rotatably connected to the fixed base 430 and the other end is rotatably connected to the energy-absorbing member 420.

[0043] The second link 440 is used to realize the rotational connection between the energy-absorbing component 420, the fixed base 430, and the first link 411, thereby transferring the impact energy to the energy-absorbing component 420.

[0044] Furthermore, both the first connecting rod 411 and the second connecting rod 440 here are made of alloy structural steel with grade 40CrNiMo as the blank. The connecting rod blanks are prepared by die forging process, so that the metal fiber structure is continuously distributed along the force direction of the connecting rod, eliminating the cutting phenomenon of forging flow lines, thereby significantly improving the fatigue strength and mechanical properties of the parts, which will not be elaborated here.

[0045] In one embodiment, please refer to Figure 2 , Figure 3The energy absorption assembly 400 also includes at least two connectors 450 and at least two third links 460. The connectors 450 are arranged in a one-to-one correspondence with the first links 411 and are respectively connected to the other end of the first links 411. One end of the third link 460 is rotatably connected to the connector 450 and the other end is rotatably connected to the energy absorption member 420.

[0046] The connector 450 is used to realize the transmission connection between the other first link 411 and the energy-absorbing component 420, so that all the energy during the impact process is transferred to the multiple energy-absorbing components 420, which can improve the stability and safety of the device during operation.

[0047] Furthermore, the two first links 411, the second link 440, and the third link 460 form a parallelogram-like link structure, which can effectively improve the stability of the device operation.

[0048] In one embodiment, please refer to Figure 2 , Figure 3 The energy absorption assembly 400 has multiple hinges 410, which are spaced apart from each other, and one end of each of the multiple first connecting rods 411 is rotatably connected to the fixed base 430.

[0049] To enhance the overall strength and stability of the device, multiple hinges 410 are spaced apart and arranged side by side.

[0050] Furthermore, multiple hinges 410 form a rotatable connection with the fixed base 430 via connecting rods.

[0051] In some embodiments, the number of second links 440 and third links 460 is two or more, with two second links 440 or third links 460 spaced apart and arranged side by side to improve the overall strength and stability of the device, which will not be elaborated here.

[0052] In one embodiment, please refer to Figure 1 , Figure 2 The energy-absorbing assembly 400 has multiple energy-absorbing elements 420, which are symmetrically distributed on both sides of the impactor 300. The energy-absorbing assembly 400 also includes a fourth link 470, the other end of the second link 440 and the other end of the third link 460 are rotatably connected to the fourth link 470, and the multiple energy-absorbing elements 420 are spaced apart along the length of the fourth link 470.

[0053] The fourth link 470 is used to realize the rotational connection between multiple energy-absorbing components 420 and multiple second links 440 and multiple third links 460, which can disperse and transfer impact or collision energy to multiple energy-absorbing components 420, thereby effectively improving the safety and stability of the device.

[0054] Furthermore, the third connecting rod 460 and the fourth connecting rod 470 are both made of alloy structural steel with the grade 40CrNiMo as the blank. The connecting rod blanks are prepared by die forging process, so that the metal fiber structure is continuously distributed along the force direction of the connecting rod, eliminating the cutting phenomenon of forging flow lines, thereby significantly improving the fatigue strength and mechanical properties of the parts, which will not be elaborated here.

[0055] In this embodiment, as Figure 1 , Figure 2 As shown, the base 200 has a receiving cavity relative to the hull 100. The impact energy absorption device also includes a buffer air cushion 500, which is built into the receiving cavity and connected to the base 200, and the buffer air cushion 500 abuts against the hull 100.

[0056] By setting up a buffer air cushion 500 between the base 200 and the law enforcement vessel, effective protection can be provided for the law enforcement vessel, reducing the impact or damage of collisions on the vessel and improving safety and protection levels.

[0057] Furthermore, the cushioning air cushion 500 here is made of cast polyurethane elastomer, which is integrally cast in a mold and has excellent resistance to compression set and hydrolysis, which will not be elaborated here.

[0058] like Figure 5 As shown, an embodiment of the present invention also provides an law enforcement vessel, including a hull 100 and a plurality of impact energy absorption devices, wherein a plurality of bases 200 are evenly distributed along the surface of the hull 100 and are all connected to the hull 100.

[0059] Multiple impact energy absorption devices are evenly distributed along the surface of the hull 100, which can effectively form an attack or protection structure.

[0060] Furthermore, the placement of the impact energy absorption device on the ship can be adjusted according to the actual usage scenario, which will not be elaborated here.

[0061] To better understand this invention, the following is combined with... Figures 1 to 5 The technical solution of the present invention will be described in detail below: The base 200 is connected to the hull 100. The impactor 300 is spaced apart from the base 200 and can slide closer to or further away from the base 200. An impact tip 310 is formed on the side of the impactor 300 facing away from the hull 100. The energy-absorbing component 400 is connected to both the impactor 300 and the base 200 and can generate an elastic restoring force to resist the sliding of the impactor 300 relative to the base 200. Compared to existing technologies, by setting the impact tip 310 on the hull 100 facing away from the hull 100, it has the characteristics of small contact area and high pressure in tactical impacts, effectively impacting or damaging the structure of the opponent's hull 100. Simultaneously, the energy-absorbing component 400 is also provided between the impactor 300 and the base 200, which can convert the impact force during the impact process into a reciprocating sliding motion of the impactor 300 relative to the base 200, thereby absorbing the impact force and effectively reducing the impact on its own vessel while inflicting maximum damage on the opponent's hull 100.

[0062] In the specific working process of this invention, the base is installed on the side of the hull 100. When the ship performs an active impact mission, the impactor 300 first contacts the target, and the huge impact force is transmitted through the two first links 411. That is, after being subjected to force, the scissor structure composed of the two first links 411 begins to contract, converting the horizontal impact force into vertical displacement. This displacement is transmitted to multiple energy-absorbing components 420 through the second link 440, the third link 460 and the fourth link 470, and triggers the hydraulic buffer to work. This process converts most of the impact kinetic energy into the potential energy of the spring and the heat energy of the damper.

[0063] Furthermore, the remaining impact energy continues to be transmitted rearward, where it is ultimately absorbed and buffered by the cushioning air cushion 500 through its own compression deformation, thereby reducing the load transmitted to the hull 100 plating to a safe range and effectively protecting the mother ship structure.

[0064] Furthermore, if the device is damaged in an impact, the ship's combat capability can be quickly restored simply by disassembling and replacing the damaged module. The structure is simple and easy to disassemble and install.

[0065] This application, through the aforementioned structure, can solve the technical problem in the prior art where the bow and sides of the ship are non-offensive designs with a large contact area and low pressure with the target, making it impossible to effectively damage the structure of the opponent's hull 100 in a tactical collision.

[0066] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A crash energy absorption device configured to be connected to a ship body, characterized in that, The application relates to a shock-absorbing device for a ship, which comprises a base configured to be connected to a ship body; a striking body arranged at a distance from the base and capable of sliding towards or away from the base, and a striking tip formed on a side of the striking body away from the ship body; and an energy-absorbing assembly connected to the striking body and the base and used for generating an elastic restoring force against the sliding of the striking body towards or away from the base. The energy-absorbing assembly comprises at least one hinged piece and at least one energy-absorbing piece, the hinged piece comprises two first connecting rods, the middle parts of the two first connecting rods are rotationally connected, one end of each of the two first connecting rods is rotationally connected to the striking body, the other end of each of the two first connecting rods is slidingly connected to the base, the energy-absorbing piece is arranged on one side or both sides of the striking body and connected to the base and the other end of the first connecting rod, the length of the energy-absorbing piece is adjustable, and the energy-absorbing piece is used for automatically resetting after pushing the first connecting rod to slide relative to the base, so as to resist the sliding of the striking body towards or away from the base. The energy-absorbing assembly further comprises two fixed seats, one end of each of the two fixed seats is connected to the striking body, and the other end of each of the two fixed seats is detachably connected to one end of each of the two first connecting rods, and one end of each of the first connecting rods is capable of rotating relative to the fixed seat. The energy-absorbing assembly further comprises at least one second connecting rod, one end of the second connecting rod is rotationally connected to the fixed seat, and the other end of the second connecting rod is rotationally connected to the energy-absorbing piece. The energy-absorbing assembly further comprises at least two connecting bodies and at least two third connecting rods, the connecting bodies are arranged one by one corresponding to the first connecting rods and connected to the other end of each of the first connecting rods, one end of each of the third connecting rods is rotationally connected to the connecting body, and the other end of each of the third connecting rods is rotationally connected to the energy-absorbing piece.

2. The impact energy absorption device of claim 1, wherein The number of the hinged pieces in the energy-absorbing assembly is multiple, the multiple hinged pieces are arranged at a distance from each other, and one end of each of the multiple first connecting rods is rotationally connected to the fixed seat.

3. The impact energy absorption device of claim 2, wherein The number of the energy-absorbing pieces in the energy-absorbing assembly is multiple, the multiple energy-absorbing pieces are symmetrically distributed on both sides of the striking body, the energy-absorbing assembly further comprises a fourth connecting rod, the other end of each of the second connecting rods and the other end of each of the third connecting rods are rotationally connected to the fourth connecting rod, and the multiple energy-absorbing pieces are arranged at a distance along the length direction of the fourth connecting rod.

4. The impact energy absorption device of claim 3, wherein The base is provided with a containing cavity relative to the ship body, the shock-absorbing device further comprises a buffer air cushion, the buffer air cushion is arranged in the containing cavity and connected to the base, and the buffer air cushion abuts against the ship body.

5. The impact energy absorption device of claim 4, wherein The striking body is provided with a weight-reducing groove penetrating through the striking body.

6. The impact energy absorption device of claim 3, wherein The application further relates to a ship body and multiple shock-absorbing devices as claimed in any one of claims 1 to 9, the multiple bases are uniformly distributed along the surface of the ship body and connected to the ship body.

7. The impact energy absorption device of claim 5, wherein ​ 8. The impact energy absorption device of claim 1, wherein ​ 9. The impact energy absorption device of claim 1, wherein ​ 10. A law enforcement vessel, characterized in that, ​

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