Folding type blocking net self-unfolding ship blocking system

Abstract

The folding type blocking net self-unfolding ship blocking system comprises two sets of anchoring assemblies, a plurality of net storage devices and a plurality of blocking ropes, each net storage device comprises a storage box, a blocking net and a limiting piece, and the blocking net has a first state in which the blocking net is folded and stored in the storage box and a second state in which at least part of the blocking net is separated from the storage box and unfolded. The two ends of the limiting piece are connected with the blocking net and the storage box so that the blocking net can be kept in the first state, and the limiting piece can release the blocking net when the pulling force of the blocking net exceeds a critical value so that the blocking net can be switched to the second state. The multiple arresting cables and the multiple arresting nets are connected in series at intervals, and the arresting cables located at the two ends are connected with the anchoring assemblies correspondingly. When the folding type blocking net self-unfolding ship blocking system is in a standby state, the blocking net is hidden in the storage box, the blocking net is prevented from being damaged due to long-term exposure in the natural environment, and the service life of the blocking net is prolonged.

Description

Technical Field

[0001] The present invention relates to the field of port and offshore engineering safety protection, and in particular to a foldable arresting net self-deployed ship arresting system. Background Art

[0002] Accidents involving uncontrolled ships colliding with bridges, port facilities, or offshore structures are common, threatening not only the safety of personnel and the integrity of the vessel but also potentially causing significant economic losses and ecological disasters. To mitigate these risks, the development of ship arresting devices has become a key issue in the field of marine safety.

[0003] To prevent uncontrolled vessel collisions, an interception system can be constructed at a certain distance from structures such as bridge piers. This system applies brakes and intercepts the vessel before it approaches the piers. Existing ship arresting systems can be found in patent application number CN201910285100.6. This system primarily consists of a moored buoy, high-strength arresting cables / nets, anchor chains, and anchor blocks. When the arresting system is struck by an uncontrolled vessel, the arresting cables / nets move forward with the vessel. The cables / nets initially dissipate energy from the uncontrolled vessel, and the vessel then continues to drag the cables / nets forward, causing them to slowly pull the buoy forward. After the buoy advances a certain distance, it straightens the anchor chains, which then pull the seabed gravity anchor blocks against the soil, generating frictional energy dissipation until the vessel stops. The entire process of a ship impacting the arresting device is a flexible collision, protecting both the bridge and the vessel. However, the barrier net is exposed to the natural environment for a long time. On the one hand, it is easy for a large number of parasites, marine debris and other debris to accumulate on the barrier net. On the other hand, the barrier net is in contact with seawater and air for a long time, which makes it more prone to corrosion and aging, greatly reducing the service life of the barrier net.

[0004] Therefore, how to prevent the barrier net from being exposed to the natural environment for a long time is a technical problem that needs to be solved urgently. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and propose a foldable arresting net self-deployed ship arresting system to solve the technical problem in the prior art that the arresting net is easily aged and damaged due to long-term exposure to the natural environment.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: In a first aspect, the present invention provides a foldable arresting net self-deployable ship arresting system, comprising: Two sets of anchoring components; Several net storage devices, each comprising a storage box, a blocking net, and a limiting member, wherein the blocking net has a first state in which it is folded and stored in the storage box, and a second state in which it is at least partially detached from the storage box and unfolded, the limiting member being mounted on the storage box, the limiting member having a limiting state in which it is connected to the blocking net so that the blocking net maintains the first state, and a triggering state in which the limiting member releases the blocking net to switch the blocking net to the second state, thereby switching the blocking net to the second state; and A plurality of arresting cables are connected in series with a plurality of the arresting nets at intervals, and the arresting cables at both ends are respectively connected to the anchoring assemblies.

[0007] In some embodiments, the limiting member includes a pull rope, the two ends of which are respectively connected to the storage box and the blocking net to maintain the blocking net in the first state. When the tension of the blocking net exceeds a critical value, the pull rope breaks and releases the blocking net to switch the blocking net to the second state.

[0008] In some embodiments, the net storage device further comprises a cutting knife, which is mounted on the inner wall of the storage box. The cutting edge of the cutting knife faces the pull rope and can cut the pull rope radially when the pull rope is tensioned.

[0009] In some embodiments, the barrier net includes a mesh cover and several support rods, both ends of the mesh cover are used to connect the barrier ropes, the several support rods are arranged at intervals and cross-arranged with the barrier ropes, and the support rods are attached to and support the mesh cover.

[0010] In some embodiments, the support rod comprises an elastic support rod, and when the blocking net is in the first state, the elastic support rod is bent and built into the storage box.

[0011] In some embodiments, the storage box includes a flexible outer tube, an inner tube and an energy absorbing part, the flexible outer tube is sleeved on the outside of the inner tube, and a filling gap is retained between the inner wall of the flexible outer tube and the outer wall of the inner tube, the energy absorbing part is embedded in the filling gap, and the energy absorbing part can deform with the flexible outer tube to absorb the kinetic energy generated by the collision.

[0012] In some embodiments, the flexible outer cylinder is a rubber flexible outer cylinder, and the inner cylinder is a stainless steel inner cylinder.

[0013] In some embodiments, the energy absorbing portion includes a plurality of ceramic particles, and the plurality of ceramic particles are embedded in the filling gap.

[0014] In some embodiments, the anchoring assembly includes an anchor base, a connecting rope and a floating pile. The anchor base is fixed to the bottom of the water, the floating pile floats on the water surface, and the floating pile is connected to the barrier cable. The two ends of the connecting rope are respectively connected to the anchor base and the floating pile.

[0015] In some embodiments, the floating pile has a connecting ring, and the end of the barrier cable is tied to the connecting ring.

[0016] Compared with the prior art, the foldable arresting net self-deployment ship arresting system provided by the present invention has the following advantages: First, two sets of anchoring assemblies are installed in the waters where ships need to be intercepted, so that a number of arresting cables and a number of arresting nets are connected in series at intervals, and the arresting cables at both ends are respectively connected to the two sets of anchoring assemblies. Each arresting net is folded and stored in a storage box to prevent the arresting net from being exposed to the natural environment. Once a ship collides with the arresting cable or the storage box, the tension of the arresting cable and the arresting net increases. At this time, the limiting member is switched from the limiting state to the triggering state, and the limiting member releases the arresting net. The arresting net is at least partially separated from the storage box and unfolded. The unfolded arresting net contacts the hull to prevent the ship from crossing the arresting cable. When the foldable arresting net self-expanding ship arresting system provided by the present invention is in standby state, the arresting net is hidden in the storage box. When intercepting a ship, the arresting net is separated from the storage box, and the unfolded arresting net cooperates with the arresting cable to intercept the ship. The arresting net is prevented from being aged and damaged due to long-term exposure to the natural environment, thereby extending the service life of the arresting net. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 1 is a schematic structural diagram of a foldable arresting net self-deployable ship arresting system in a standby state provided by an embodiment of the present invention; Figure 2 This is a structural diagram of a foldable arresting net self-deployable ship arresting system in an intercepting state provided by an embodiment of the present invention; Figure 3 This is a schematic structural diagram of a network storage device provided by an embodiment of the present invention; Figure 4 This is a partial schematic diagram of a position limiting member provided by an embodiment of the present invention; Figure 5 Schematic diagram of the deployed state of the barrier net provided by an embodiment of the present invention; Explanation of the accompanying drawings: anchoring assembly 100, anchor base 110, connecting rope 120, floating pile 130, net storage device 200, storage box 210, flexible outer cylinder 211, inner cylinder 212, energy absorbing part 213, ceramic particles 2131, barrier net 220, net cover 221, support rod 222, limiter 230, pull rope 231, cutting knife 240, barrier rope 300. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present 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 only used to explain the present invention and are not intended to limit the present invention.

[0019] In order to solve the technical problem that the arresting net 220 is prone to aging and damage due to long-term exposure to the natural environment, the present invention provides a foldable arresting net self-deployed ship arresting system. In the standby state, the arresting net 220 is hidden, and when intercepting a ship, the arresting net 220 is released and unfolded, avoiding aging and damage caused by long-term exposure to the natural environment of the arresting net 220, thereby extending the service life of the arresting net 220. It should be noted that the foldable barrier net self-deployed ship arresting system of the present invention is used for but not limited to ports and offshore projects. For the convenience of explanation, in the present invention, only the application of the foldable barrier net self-deployed ship arresting system in ports and offshore projects is used as an example for explanation. The principle of the application of the foldable barrier net self-deployed ship arresting system in other types of equipment is essentially the same as the principle of application in ports and offshore projects, which will not be repeated here.

[0020] See also Figure 1 , Figure 1 1 and 1. The foldable arresting net self-deployable ship arresting system according to an embodiment of the present invention comprises two sets of anchoring assemblies 100, a plurality of net storage devices 200 and a plurality of arresting cables 300. The net storage device 200 comprises a storage box 210, an arresting net 220 and a limiting member 230. The arresting net 220 has a first state in which it is folded and stored in the storage box 210, and a second state in which it is at least partially separated from the storage box 210 and unfolded. The limiting member 230 is installed in the storage box 210. The limiting member 230 has a limiting state in which the arresting net 220 is connected to maintain the first state, and a trigger state in which the limiting member 230 releases the arresting net 220 to switch the arresting net 220 to the second state, so that the arresting net 220 switches to the second state. The plurality of arresting cables 300 are connected in series with the plurality of arresting nets 220 at intervals, and the arresting cables 300 at both ends are respectively connected to the anchoring assemblies 100.

[0021] In this embodiment, two sets of anchor assemblies 100 are first installed in the waters where ship interception is required. Several arresting cables 300 and several arresting nets 220 are connected in series at intervals, with the arresting cables 300 at each end connected to the two sets of anchor assemblies 100. Each arresting net 220 is folded and stored in a storage box 210 to prevent exposure. If a ship strikes the arresting cables 300 or storage box 210, the tension in the arresting cables 300 and the arresting net 220 increases, causing the stopper 230 to switch from a restrained state to a triggered state. The stopper 230 releases the arresting net 220, which at least partially detaches from the storage box 210 and unfolds. The unfolded arresting net 220 contacts the ship's hull, preventing the ship from crossing the arresting cables 300. In the standby mode of the foldable self-deployable arresting net system provided by the present invention, the arresting net 220 is hidden in the storage box 210. When intercepting a ship, the arresting net 220 is removed from the storage box 210 and deployed to cooperate with the arresting cable 300 to intercept the ship. This prevents the arresting net 220 from aging and damage caused by long-term exposure to the natural environment, thereby extending the service life of the arresting net 220.

[0022] It is understandable that the limiter 230 is used to prevent the blocking net 220 from detaching from the storage box 210, and can release the blocking net 220 after the tension of the blocking net 220 exceeds a critical value. Any implementation method of the limiter 230 that meets the above requirements is feasible.

[0023] In some embodiments, the retaining member 230 includes a pull rope 231, with its ends connected to the storage box 210 and the barrier net 220, respectively, to maintain the barrier net 220 in the first state. When the tension in the barrier net 220 exceeds a critical value, the pull rope 231 breaks, releasing the barrier net 220 and allowing the barrier net 220 to switch to the second state. Because the pull rope 231 is connected to the storage box 210 and the barrier net 220 at both ends, the pull of the pull rope 231 prevents the barrier net 220 from separating from the storage box 210, maintaining the barrier net 220 in the first state. During a ship interception, the tension in the barrier net 220 and the arresting cable 300 increases. When the tension in the barrier net 220 exceeds the limit of the pull rope 231, the pull rope 231 is torn apart by the tension, and the barrier net 220 is freed from the storage box 210 under the action of the tension.

[0024] It is understood that if the critical value is too large, it may not be possible to deploy the arresting net 220 in a timely manner after a ship strikes the arresting cable 300. If the critical value is too small, it may lead to the incorrect deployment of the arresting net 220 due to the influence of waves and currents. Therefore, the critical value needs to be reasonably set according to the natural environment and the type of ship to be intercepted. The strength of the rope 231 determines the size of the critical value. The stronger the rope 231, the greater the critical value. The weaker the rope 231, the smaller the critical value. Designers need to select ropes 231 of appropriate specifications based on their needs.

[0025] It should be noted that the installation methods of the pull rope 231, the barrier net 220 and the storage box 210 need to cooperate with each other, and the installation method between the three is not unique. The following is a specific embodiment of an installation method for illustration: One end of the barrier net 220 is fixed to the inner wall of the storage box 210, and the other end of the barrier net 220 can slide relative to the inner wall of the storage box 210. The two ends of the pull rope 231 are respectively connected to the movable end of the barrier net 220 and the storage box 210. The pull rope 231 prevents the movable end of the barrier net 220 from being separated from the storage box 210, allowing the barrier net 220 to maintain the first state. When the tension of the barrier net 220 exceeds the endurance limit of the pull rope 231, the pull rope 231 is torn. Without the restraint of the pull rope 231, the movable end of the barrier net 220 is separated from the storage box 210 under the action of the tension and unfolds to the outside, causing the barrier net 220 to switch to the second state.

[0026] In addition to the above embodiments, in some embodiments, the net storage device 200 further includes a cutter 240 mounted on the inner wall of the storage box 210. The cutting edge of the cutter 240 faces the drawstring 231 and is capable of radially cutting a portion of the drawstring 231 when the drawstring 231 is tightened. When the drawstring 231 is relaxed, the cutter 240 does not cut the drawstring 231 because the drawstring 231 does not press against the cutter 240. When the barrier net 220 is subjected to tension, the drawstring 231 is tightened, pressing against the cutter 240. The cutter 240 then partially cuts the drawstring 231, making it more likely that the drawstring 231 will break at the cut point.

[0027] It should be noted that the cutter 240 cannot completely cut the pull cord 231 , so the height of the cutter 240 protruding from the inner wall of the storage box 210 needs to be smaller than the radius of the pull cord 231 to prevent the pull cord 231 from being cut by the cutter 240 .

[0028] Based on the above embodiments, in some embodiments, the barrier net 220 includes a mesh cover 221 and a plurality of support rods 222. The ends of the mesh cover 221 are used to connect to the barrier rope 300. The plurality of support rods 222 are arranged at intervals and cross the barrier rope 300. The support rods 222 are attached to and support the mesh cover 221. With the support of the support rods 222, once the support rods 222 and the mesh cover 221 are separated from the storage box 210, the mesh cover 221 is fully extended under the combined action of the support of the support rods 222 and the pulling force.

[0029] In some embodiments, the support rod 222 includes an elastic support rod 222. When the barrier net 220 is in the first state, the elastic support rod 222 is bent and built into the storage box 210. The elastic support rod 222 is bent and curled up in the storage box 210, so that more elastic support rods 222 can be stored within the limited space of the storage box 210, thereby improving the space utilization rate of the storage box 210.

[0030] Specifically, the elastic support rod 222 can be a hard rubber rod or an elastic plastic rod. In principle, any rod with a certain hardness and elasticity is feasible.

[0031] In some embodiments, the storage box 210 includes a flexible outer tube 211, an inner tube 212, and an energy-absorbing portion 213. The flexible outer tube 211 is sleeved over the inner tube 212, leaving a gap between the inner wall of the flexible outer tube 211 and the outer wall of the inner tube 212. The energy-absorbing portion 213 is embedded in the gap and can deform with the flexible outer tube 211 to absorb the kinetic energy generated by the collision. When a ship collides with the storage box 210, the flexible outer tube 211 concave inward, pressing against the energy-absorbing portion 213. The energy-absorbing portion 213 then absorbs the kinetic energy generated by the collision, thereby preventing damage to the ship's surface.

[0032] In some embodiments, based on the above embodiments, the flexible outer cylinder 211 is a rubber outer cylinder 211, and the inner cylinder 212 is a stainless steel inner cylinder 212. The rubber outer cylinder 211 is soft and easily deformable, while the stainless steel inner cylinder 212 has a certain degree of rigidity and corrosion resistance, effectively protecting the internal barrier net 220.

[0033] Any embodiment of the energy-absorbing portion 213 that can absorb kinetic energy is acceptable. In some embodiments, the energy-absorbing portion 213 includes a plurality of ceramic particles 2131 embedded in the gap. When the flexible outer tube 211 is struck by a ship, the inwardly concave portion of the flexible outer tube 211 presses against the ceramic particles 2131, forcing them to break and thereby absorbing the kinetic energy generated by the collision.

[0034] In some embodiments, the anchor assembly 100 includes an anchor base 110, a connecting line 120, and a floating pile 130. The anchor base 110 is fixed to the bottom of the water, while the floating pile 130 floats on the surface of the water. The floating pile 130 is connected to the arresting cable 300, and the connecting line 120 is connected to the anchor base 110 and the floating pile 130 at both ends. With the anchor base 110 fixed to the bottom of the water and the floating pile 130 floating on the surface of the water, the arresting cable 300 connects the anchor base 110 and the floating pile 130, allowing the floating pile 130 to float within a certain range. In turn, the two floating piles 130 can support each arresting cable 300 and each arresting net 220.

[0035] On the basis of the above embodiments, in some embodiments, the floating pile 130 has a connecting ring, and the end of the arresting cable 300 is tied to the connecting ring, so that the floating pile 130 and the arresting cable 300 are connected to each other.

[0036] In order to better understand the present invention, the following Figures 1 to 5 The technical solution of the present invention is described in detail: The anchor base 110 is fixed to the bottom of the water, while the floating pile 130 floats on the surface. The anchor base 110 and the floating pile 130 are connected by an arresting cable 300, allowing the floating pile 130 to float within a certain range. Several arresting cables 300 are connected in series with several arresting nets 220 at intervals, with the arresting cables 300 at each end connected to two floating piles 130. Each arresting net 220 is folded and stored in a storage box 210 to prevent it from being exposed to the elements. If a ship strikes the arresting cables 300 or the storage box 210, the tension in the arresting cables 300 and the arresting net 220 increases, causing the pull rope 231 to be tensioned. The pull rope 231 presses against the cutter 240, which then partially cuts the pull rope 231, making it more likely to break at the cut. When the tension on the arresting net 220 exceeds a critical value, the pull rope 231 breaks at the cut point, releasing the arresting net 220. The arresting net 220 is then at least partially detached from the storage box 210 and deployed. The deployed arresting net 220 contacts the ship's hull, preventing the ship from passing over the arresting cable 300. When the foldable, self-deployable arresting net ship arresting system provided by the present invention is in standby mode, the arresting net 220 is hidden within the storage box 210. When intercepting a ship, the arresting net 220 is detached from the storage box 210 and deployed, cooperating with the arresting cable 300 to intercept the ship. This prevents the arresting net 220 from aging and damage due to long-term exposure to the natural environment, thereby extending its service life. Furthermore, when a ship strikes the storage box 210, the flexible outer cylinder 211 concaves inward, pressing against the energy-absorbing portion 213. This absorbs the kinetic energy generated by the collision, preventing damage to the ship's surface.

[0037] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0038] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0039] The above specific embodiments of the present invention do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A foldable arresting net self-deployable ship arresting system, characterized in that: include; Two sets of anchoring components; Several net storage devices, each comprising a storage box, a blocking net, and a limiting member, wherein the blocking net has a first state in which it is folded and stored in the storage box, and a second state in which it is at least partially detached from the storage box and unfolded, the limiting member being mounted on the storage box, the limiting member having a limiting state in which it is connected to the blocking net so that the blocking net maintains the first state, and a triggering state in which the limiting member releases the blocking net to switch the blocking net to the second state, thereby switching the blocking net to the second state; as well as A plurality of arresting cables are connected in series with a plurality of the arresting nets at intervals, and the arresting cables at both ends are respectively connected to the anchoring assemblies.

2. The foldable arresting net self-deployable ship arresting system according to claim 1 is characterized in that: The limiting member includes a pull rope, the two ends of which are respectively connected to the storage box and the blocking net to maintain the blocking net in the first state. When the tension of the blocking net exceeds a critical value, the pull rope breaks and releases the blocking net to switch the blocking net to the second state.

3. The foldable arresting net self-deployable ship arresting system according to claim 2 is characterized in that: The net storage device further comprises a cutting knife, which is mounted on the inner wall of the storage box. The cutting edge of the cutting knife faces the pull rope and can cut the pull rope along a radial portion when the pull rope is tensioned.

4. The foldable arresting net self-deployable ship arresting system according to claim 1, characterized in that: The blocking net includes a mesh cover and a plurality of support rods. Both ends of the mesh cover are used to connect the blocking cables. The support rods are arranged at intervals and cross-arranged with the blocking cables. The support rods are attached to and support the mesh cover.

5. The foldable arresting net self-deployable ship arresting system according to claim 4, characterized in that: The support rod includes an elastic support rod. When the blocking net is in the first state, the elastic support rod is bent and built into the storage box.

6. The foldable arresting net self-deployable ship arresting system according to claim 1, characterized in that: The storage box includes a flexible outer tube, an inner tube and an energy absorbing part. The flexible outer tube is sleeved on the outside of the inner tube, and a filling gap is retained between the inner wall of the flexible outer tube and the outer wall of the inner tube. The energy absorbing part is embedded in the filling gap and can deform with the flexible outer tube to absorb the kinetic energy generated by the collision.

7. The foldable arresting net self-deployable ship arresting system according to claim 6, characterized in that: The flexible outer cylinder is a rubber flexible outer cylinder, and the inner cylinder is a stainless steel inner cylinder.

8. The foldable arresting net self-deployable ship arresting system according to claim 6, characterized in that: The energy absorbing portion includes a plurality of ceramic particles, and the plurality of ceramic particles are embedded in the filling gap.

9. The foldable arresting net self-deployable ship arresting system according to claim 1, characterized in that: The anchoring assembly includes an anchor base, a connecting rope and a floating pile. The anchor base is fixed to the bottom of the water, the floating pile floats on the water surface, and the floating pile is connected to the blocking cable. The two ends of the connecting rope are respectively connected to the anchor base and the floating pile.

10. The foldable arresting net self-deployable ship arresting system according to claim 9, characterized in that: The floating pile has a connecting ring, and the end of the barrier cable is tied to the connecting ring.

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