Intelligent barrier protection device applied to cargo safety of deck cargo ship

Abstract

The invention relates to the related technical field of ship transportation, discloses a cargo safety intelligent barrier protection device applied to a deck cargo ship, and aims to solve the problem that the anti-seismic property is poor due to the fact that cargoes are fastened to a deck. When the cargo ship deck shakes due to marine environmental factors, the limiting main frame can relatively move in the limiting frame, on one hand, elastic damping is conducted by compressing the damping spring, on the other hand, medium oil in the damping cavity is extruded through the damping piston, damping buffering is conducted through the damping hole, and therefore the impact pressure of cargoes on the cargo ship deck is reduced; when the cargo ship deck is relatively stable, the damping piston is always in the optimal damping state through elastic reset of the damping spring, so that shaking generated in all directions is buffered and damped, and finally the effect of synchronous buffering and damping of elasticity and medium damping is achieved.

Description

Technical Field

[0001] The present application relates to the technical field related to ship transportation, and in particular to an intelligent barrier protection device for cargo safety applied to deck cargo ships. Background Art

[0002] Deck cargo ship cargo transportation, as a special mode of sea transportation, has the core mission of safely and efficiently transporting large, heavy or special goods that cannot or are not suitable to be placed in the cabin due to their large size, weight or special physical or chemical properties. These goods may include but are not limited to large machinery and equipment, heavy steel and special chemicals.

[0003] On the vast sea, ships will inevitably encounter various natural forces when sailing, such as turbulent waves, sudden changes in wind direction and unpredictable weather changes. These natural factors not only test the ship's navigation ability, but also pose a direct threat to the cargo on the deck. As the ship sways in the waves, the cargo on the deck will also sway to varying degrees. If this swaying is not controlled by effective means, it will cause serious damage to the cargo itself, such as breakage, deformation and even functional failure. At the same time, the swaying of the cargo will also increase the impact pressure on the deck. In the long run, it may cause damage to the deck structure and affect the overall stability and service life of the ship.

[0004] To meet this challenge, the traditional approach is to rely on physical devices such as connecting frames to firmly fasten the cargo to the deck. This method can reduce the swaying of the cargo to a certain extent, but its limitations are obvious when facing extremely severe sea conditions. Since the connectors need to withstand huge tensile and shear forces, once their design strength is exceeded, they may break or fail, causing the cargo to lose its fixation and slide or collide. In addition, even if the connectors remain intact, long-term violent shaking may cause cumulative damage to the deck structure, gradually weakening its carrying capacity. Summary of the invention

[0005] The present application proposes an intelligent barrier protection device for cargo safety applied to deck cargo ships, which has the advantages of synchronous buffering and shock absorption of elasticity and medium damping, and is used to solve the problem of poor seismic performance caused by cargo being fastened to the deck as mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a cargo safety intelligent barrier protection device applied to a deck cargo ship, comprising: a cargo ship deck, a limit frame fixed on the surface; an intermediate connecting frame, located at the central part of the limit frame, and a limit main frame fixed to the side of the intermediate connecting frame, and a support auxiliary plate fixed on the limit main frame; a damping chamber, opened inside the limit main frame, and a damping piston movably installed in the damping chamber, a damping spring is connected between one end of the damping piston and the inner side of the limit main frame, and a damping plate is fixedly installed on the other end of the damping piston; a cargo bottom limit slide and a rope limit slider, both of which are movably installed on the top of the limit main frame, a drainage groove communicating with the damping chamber is opened on the inner side of the limit main frame, a telescopic connecting pipe is fastened between the rope limit slider and the limit main frame, a main damping hole is opened inside the rope limit slider, a liquid storage tank is fixedly connected to the end of the limit main frame by bolts, and a reflux groove is opened on the limit main frame, and a telescopic conduit is fixed between the side of the liquid storage tank and the rope limit slider.

[0007] Furthermore, there are four position-limiting main frames, and the middle connecting frame is respectively fixed to the ends of the four position-limiting main frames, thereby forming a "cross"-shaped frame.

[0008] Furthermore, an oil replenishing hole is provided on the top of the liquid storage box.

[0009] Furthermore, a one-way valve is fixedly installed on the top of the damping piston.

[0010] Furthermore, a reversing wheel is installed on the top of the limiting slide at the bottom of the cargo, and the steel wire rope tied on the top of the cargo is reversed through the reversing wheel; there is a rope pressing cover plate fastened by bolts on the top of the rope limiting slide, and the steel wire rope is pressed by using the top of the rope limiting slide and the rope pressing cover plate to fix the steel wire rope.

[0011] Furthermore, an adjustment cavity is opened on the inner side of the pull-rope limit slider, an adjustment slide is movably installed on the inner side of the pull-rope limit slider, a slide limit block is fixed by bolts on the bottom of the pull-rope limit slider, a transmission telescopic rod is fixedly installed on the end of the adjustment slide, the transmission telescopic rod is located inside the telescopic connecting pipe, a positioning seat is fixedly connected to the inside of the limit main frame, and a sealing plug is movably installed in the positioning seat, a sealing spring is connected between the sealing plug and the positioning seat, and one end of the transmission telescopic rod is fixedly installed on the side of the sealing plug.

[0012] Furthermore, a detection switch is fixedly connected with bolts on the inner side of the liquid storage box, an alarm light is threadedly fixed on the surface of the supporting auxiliary plate, and the detection switch and the alarm light are connected in series with a power supply.

[0013] Furthermore, an alarm damping hole located above the main damping hole is opened on the side of the pull rope limiting slider, and the central axis of the alarm damping hole is directly opposite to the detection switch.

[0014] The present invention has the following beneficial effects: The present application provides a cargo safety intelligent barrier protection device for deck cargo ships, which is intended to significantly improve the stability and safety of cargo in complex sea conditions. The cargo is precisely fastened to the limit main frame, and a flexible movable arrangement is adopted between the limit main frame and the limit frame.

[0015] When the deck of a cargo ship inevitably shakes due to marine environmental factors (such as waves, sudden changes in wind direction, etc.), the limit main frame can achieve relative movement within the limit frame. On the one hand, the built-in compression damping spring immediately takes effect, absorbing and slowing down the impact force generated by the shaking through its elastic deformation, achieving a preliminary shock-absorbing effect. On the other hand, the damping piston squeezes the medium oil in the damping chamber during shaking, forcing the medium oil to flow slowly through the damping hole. The resistance generated in this process further consumes the energy of the shaking, achieving deep shock absorption and buffering. This dual shock-absorbing mechanism significantly reduces the impact pressure of the cargo on the deck of the cargo ship, and effectively avoids deformation or damage of the deck caused by excessive local pressure.

[0016] When the deck of the cargo ship is in a relatively stable state, the device does not stop working. On the contrary, the built-in damping spring uses its elastic restoring force to automatically reset the damping piston to the optimal damping state, ensuring that the device is always ready to deal with the challenges of shaking from all directions. This intelligent adaptive ability enables the protective device to always maintain the best shock absorption and buffering effect in different sea conditions, providing all-round and continuous protection for deck cargo. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0018] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which: Figure 1 It is a schematic diagram of the overall external three-dimensional structure; Figure 2 It is a schematic diagram of the overall top view structure; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle; Figure 4 for Figure 3 The enlarged structural diagram at E in the middle; Figure 5 for Figure 3 The enlarged structural diagram at F in the middle; Figure 6 It is a schematic diagram of the overall bottom three-dimensional structure; Figure 7 It is a schematic diagram of the internal three-dimensional structure of the limit main frame; Figure 8This is a schematic diagram of the three-dimensional structure of the cargo bottom limit slide; Fig. 9 It is a schematic diagram of the three-dimensional structure of the pull rope limit slider; Fig.10 It is a schematic diagram of the internal three-dimensional cross-sectional structure of the pull rope limit slider; Fig.11 It is a schematic diagram of the internal three-dimensional cross-sectional structure of the positioning seat.

[0019] In the figure: 1. cargo ship deck; 2. limit frame; 3. limit main frame; 300. damping chamber; 301. reflux groove; 302. drainage groove; 4. support auxiliary plate; 5. alarm light; 6. cargo bottom limit slide; 600. reversing wheel; 7. pull rope limit slider; 700. adjustment chamber; 701. alarm damping hole; 702. main damping hole; 703. pressure rope cover; 8. liquid storage tank; 800. oil filling hole; 9. damping plate; 10. steel wire pull rope; 11. middle connecting frame; 12. damping spring; 13. telescopic connecting pipe; 14. adjusting slide; 140. slide limit block; 15. transmission telescopic rod; 16. damping piston; 160. one-way valve; 17. sealing plug; 170. sealing spring; 18. positioning seat; 19. detection switch. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. Embodiment 1

[0021] See also Figure 1 It can be seen that a limit frame 2 is fixedly connected by bolts on the surface of the cargo ship deck 1, and the limit frame 2 is square in shape, thereby limiting the range of movement of the device located inside it. Figure 6 It can be clearly seen that the side of the intermediate connecting frame 11 has a limiting main frame 3 fixed by bolts, there are four limiting main frames 3, the intermediate connecting frame 11 is respectively fixed to the ends of the four limiting main frames 3, thereby forming a "cross" frame, and the limiting main frames 3 are fixed with supporting auxiliary plates 4 by bolts, and the surfaces of the supporting auxiliary plates 4 and the sides of the limiting main frames 3 form a complete plane for placing the goods to be transported.

[0022] The internal part of the limit main frame 3 is provided with a damping chamber 300. Figure 3It can be seen that a damping piston 16 is movably installed in the damping chamber 300, and the damping piston 16 can reciprocate in the damping chamber 300. A damping spring 12 is connected between one end of the damping piston 16 and the inner side of the limit main frame 3. A damping plate 9 extending from the end of the limit main frame 3 is fixedly installed at the other end of the damping piston 16. The damping plate 9 is pushed to the inner side of the limit frame 2 by the elastic force of the damping spring 12. Furthermore, the end of the damping plate 9 is rectangular, and a corresponding rectangular groove is opened on the inner side of the limit frame 2, thereby forcing the damping plate 9 to always be pushed to the rectangular groove on the inner side of the limit frame 2 under the elastic force of the damping spring 12. Combined with the above, there are four limit main frames 3, so the four limit main frames 3 correspond to the four inner side walls of the limit frame 2 respectively, and are pushed by the elastic force of the damping spring 12, forcing the intermediate connecting frame 11 to always be in the inner middle part of the limit frame 2 under normal conditions.

[0023] In order to secure the goods, refer to Figure 3 and Figure 7 It can be seen that the top of the limit main frame 3 is movably equipped with a cargo bottom limit slide 6 and a pull rope limit slide 7, and the cargo bottom limit slide 6 and the pull rope limit slide 7 can only perform directional reciprocating motion along the rectangular groove opened on the top of the limit main frame 3. Figure 7 and Figure 8 It can be clearly seen that the cargo bottom limit slide 6 can be limited to the top of the limit main frame 3 by the bolts arranged on the outside, such as Figure 2 As shown, when the cargo is placed on the middle connecting frame 11, the cargo bottom limit slide 6 is pressed against the outside of the cargo and locked with bolts, so that the cargo can be fastened on the loading platform constructed by the middle connecting frame 11, the limit main frame 3 and the supporting auxiliary plate 4. Figure 3-Figure 5 It can be clearly seen that a drainage groove 302 communicating with the right chamber of the damping chamber 300 is provided on the inner side of the limit main frame 3. At the same time, a telescopic connecting pipe 13 is fastened between the pull rope limit slider 7 and the limit main frame 3. The telescopic connecting pipe 13 can be used to connect the drainage groove 302 and the main damping hole 702 provided inside the pull rope limit slider 7. Correspondingly, a liquid storage box 8 is bolted and fixedly connected to the end of the limit main frame 3, and a reflux groove 301 for connecting the inner cavity of the liquid storage box 8 and the left chamber of the damping chamber 300 is provided on the limit main frame 3. A telescopic conduit is fixed between the side of the liquid storage box 8 and the pull rope limit slider 7, so that the right chamber of the damping chamber 300 is connected to the left chamber of the damping chamber 300 through the drainage groove 302, the telescopic connecting pipe 13, the main damping hole 702, the telescopic conduit, the liquid storage box 8 and the reflux groove 301. In order to achieve medium damping and shock absorption, combined with Figure 7As can be seen in the figure, the top of the liquid storage box 8 is provided with an oil filling hole 800, through which the external hydraulic oil can be injected into the inner cavity of the liquid storage box 8, so as to fill the damping cavity 300 and the connecting line. When the damping plate 9 pushes the damping piston 16 to move in the damping cavity 300, the hydraulic oil in the damping cavity 300 is squeezed by the damping piston 16, so that the hydraulic oil passes through the main damping hole 702 and realizes medium damping buffering.

[0024] In actual application, the cargo to be transported is transferred to the top of the intermediate connecting frame 11 by a forklift or a crane, and the cargo bottom limiting slide 6 is bolted to the limiting main frame 3 to achieve the fastening of the cargo. Under normal conditions, the damping piston 16 is pushed by the elastic force of the damping spring 12 to push the damping plate 9 to the rectangular groove inside the limiting frame 2, and the damping piston 16 is finally located in the middle of the damping chamber 300. Since the four damping springs 12 are exactly the same, the intermediate connecting frame 11 is always located in the center of the limiting frame 2 under the action of the elastic force.

[0025] The hydraulic oil is added from the oil replenishing hole 800 to the inner cavity of the liquid storage tank 8 by pumping or injection, so that the damping cavity 300 is filled with the hydraulic oil, so as to facilitate the subsequent liquid medium damping and shock absorption.

[0026] When the cargo ship deck 1 is inevitably shaken by the marine environment, the relative movement between the cargo ship deck 1 and the limit main frame 3 will push the damping piston 16 to squeeze the damping spring 12 through the damping plate 9, causing the limit main frame 3 and the intermediate connecting frame 11 to slide on the surface of the cargo ship deck 1. Generally, universal wheels or ball bearings can be added between the limit main frame 3 and the cargo ship deck 1 to reduce the contact friction between the limit main frame 3 and the cargo ship deck 1, making it easier for the limit main frame 3 to move on the surface of the cargo ship deck 1. When the cargo ship deck 1 shakes, the damping plate 9 pushes the damping piston 16 to squeeze the damping spring 12, and the compression of the damping spring 12 is used to make elastic buffering between the limit main frame 3 and the cargo ship deck 1, thereby achieving a preliminary shock absorption effect.

[0027] When the damping piston 16 compresses the hydraulic oil in the right chamber of the damping chamber 300, the hydraulic oil on the right side is pressurized and flows through the main damping hole 702 from the drain groove 302 through the telescopic connecting pipe 13, and the hydraulic oil is used to achieve further buffering and shock absorption through the main damping hole 702. In order to ensure the stability of the damping, in the actual application process, refer to Figure 3 and Figure 7It can be clearly seen that a one-way valve 160 is fixedly installed on the top of the damping piston 16, and the one-way valve 160 realizes one-way delivery of the hydraulic oil in the left chamber to the right side. This method can ensure that when the damping piston 16 moves to the left, the hydraulic oil can be quickly replenished to the right chamber through the one-way valve 160. On the other hand, due to the existence of the liquid storage tank 8, when the damping piston 16 is squeezed to the left, the left hydraulic oil pressure is prevented from being too high and flowing back into the inner cavity of the liquid storage tank 8. As the damping hydraulic pressure in the inner cavity of the liquid storage tank 8 increases, the hydraulic oil may be sprayed out from the oil replenishing hole 800. Therefore, through the arrangement of the one-way valve 160, not only can the medium damping be stably carried out, but also the hydraulic oil can be prevented from spraying out in the opposite direction, which greatly improves the safety and stability of the equipment application.

[0028] Finally, when the cargo ship deck 1 is relatively stable, the elastic force of the damping spring 12 will force the middle connecting frame 11 to return to the middle of the limit frame 2, so that each damping piston 16 is in the middle of the damping chamber 300, ensuring that when the damping piston 16 moves in the damping chamber 300, it can squeeze the hydraulic oil in the right chamber of the damping chamber 300 in the first time, making the medium damping shock absorption more sensitive.

[0029] Combination Figure 2 It can be seen that since there are four limit main frames 3, each limit main frame 3 has a corresponding damping plate 9 extending from the top to the inner side of the limit frame 2. On the one hand, the damping plate 9 is moved in the rectangular groove inside the limit frame 2 for limiting. On the other hand, the damping plates 9 arranged in four directions can adapt to the shaking of the cargo ship deck 1 in different directions, ensuring that when the cargo is impacted in any direction, the damping spring 12 and the hydraulic oil can be used for buffering and shock reduction. Embodiment 2

[0030] Further improvements are made based on Example 1. Figure 1 and Figure 2 It can be seen that in order to further secure the goods, the second embodiment uses a steel wire rope 10 to bind and secure the goods. For details, refer to Figure 8 and Fig. 9 It can be clearly seen that a reversing wheel 600 is installed on the top of the cargo bottom limiting slide 6. The steel wire rope 10 tied to the top of the cargo is reversed by the reversing wheel 600 and finally fixed on the rope limiting slide 7. Since the cargo bottom limiting slide 6 is close to the bottom of the cargo, the steel wire rope 10 is also relatively close to the cargo, further preventing the cargo from shifting. There is a rope pressing cover 703 fastened by bolts on the top of the rope limiting slide 7. The steel wire rope 10 is pressed by the top of the rope limiting slide 7 and the rope pressing cover 703 to fix the steel wire rope 10. Combined with the contents of Example 1 and Figure 2As shown, since there are four limit main frames 3, the rope limit sliders 7 on the two symmetrical limit main frames 3 can fix one steel wire rope 10, and finally, the two steel wire ropes 10 can be cross-fixed.

[0031] In actual application, in the initial state, the cargo bottom limit slide 6 is fastened to the bottom of the cargo as described in Example 1, and the wire rope 10 passes through the top of the cargo and is reversed by the reversing wheel 600 and then locked and fastened between the rope limit slide 7 and the rope pressing cover plate 703. At this time, the rope limit slide 7 is close to the cargo bottom limit slide 6, and the telescopic connecting tube 13 is in a fully retracted state.

[0032] When the cargo ship deck 1 is shaken by environmental factors, the damping piston 16 will squeeze the hydraulic oil in the damping chamber 300. At the same time, the hydraulic oil in the damping chamber 300 will pass through the main damping hole 702 through the drain groove 302 and the telescopic connecting pipe 13. Figure 4 It can be seen that the medium pressure on the right side of the main damping hole 702 is much greater than the medium pressure on the left side, forcing the rope limit slider 7 to move to the left. In combination with the steel wire rope 10 fastened to the top of the rope limit slider 7, when the rope limit slider 7 moves outward, the steel wire rope 10 will be further tightened, thereby ensuring the fixation of the goods.

[0033] Although this method can enhance the pulling strength of the wire rope 10 by the rope limit slider 7, when the deck 1 of the cargo ship is in a stable state, the medium pressure on the right side of the damping piston 16 is relatively reduced, and it is impossible to provide continuous push to the rope limit slider 7. In actual application, if the rope limit slider 7 is subjected to the medium pressure and the wire rope 10 is further pulled, the rope limit slider 7 moves outward under the influence of the pressure. When the pressure is removed, the rope limit slider 7 is also easy to move in the direction close to the cargo. When the cargo is subjected to a sudden shake, it is still easy to deviate.

[0034] In order to solve such problems, on this basis, an adjustment cavity 700 is opened inside the pull rope limit slider 7, combined with Figure 4 and Fig.10 It can be clearly seen that an adjustment slide 14 is movably installed inside the pull rope limit slider 7. When the adjustment slide 14 moves downward, the main damping hole 702 can be blocked. In order to facilitate the installation of the adjustment slide 14, a slide limit block 140 is fixed by bolts at the bottom of the pull rope limit slider 7. When the slide limit block 140 is removed, the adjustment slide 14 can be easily taken out, which makes it easy to assemble and replace the adjustment slide 14. A transmission telescopic rod 15 is fixedly installed at the end of the adjustment slide 14 by bolts. The transmission telescopic rod 15 is located inside the telescopic connecting pipe 13 and is combined with the adjustment slide 14 to form a transmission telescopic rod 15. Figure 5 and Fig.11It can be seen that the positioning seat 18 is fixedly connected to the interior of the limit main frame 3, and a sealing plug 17 is movably installed in the positioning seat 18. A sealing spring 170 is connected between the sealing plug 17 and the positioning seat 18. The sealing plug 17 is pushed by the elastic force of the sealing spring 170, so that the sealing plug 17 can block the drain groove 302 under normal conditions, thereby isolating the damping chamber 300 and the telescopic connecting pipe 13. One end of the transmission telescopic rod 15 is fixedly installed on the side of the sealing plug 17, so that the adjustment slide 14 can move synchronously with the sealing plug 17 through the transmission telescopic rod 15.

[0035] Specifically, when the deck 1 of the cargo ship shakes, the damping piston 16 squeezes the hydraulic oil in the right chamber of the damping chamber 300, and the hydraulic oil is discharged from the drainage groove 302 under pressure, so that the sealing plug 17 moves upward and compresses the sealing spring 170, and the hydraulic oil in the drainage groove 302 is delivered to the telescopic connecting pipe 13. At the same time, when the sealing plug 17 moves upward, the adjustment slide 14 is synchronously driven to move upward through the transmission telescopic rod 15, so that the main damping hole 702 and the telescopic connecting pipe 13 are connected, and the hydraulic oil in the telescopic connecting pipe 13 passes through the main damping hole 702, so as to achieve medium damping buffering. At the same time, the rope limit slider 7 is pushed to the left by the increase of the hydraulic pressure in the telescopic connecting pipe 13, thereby further tightening the wire rope 10.

[0036] When the deck 1 of the cargo ship becomes relatively stable, the damping chamber 300 will no longer input hydraulic oil into the telescopic connecting pipe 13. At this time, the sealing plug 17 is elastically pushed by the blocking spring 170 to block the drainage groove 302. At the same time, the sealing plug 17 pulls the adjustment slide 14 through the transmission telescopic rod 15 to block the main damping hole 702, so that a sealed space is formed inside the telescopic connecting pipe 13. When the cargo shakes and the wire rope 10 pulls the rope limit slider 7 to move to the right, the telescopic connecting pipe 13 is relatively sealed and the hydraulic oil inside the telescopic connecting pipe 13 is not easy to compress, so the rope limit slider 7 will be limited to move to the right, thereby limiting the wire rope 10 from always pulling the cargo, ensuring the stability of cargo transportation. Embodiment 3

[0037] Further improvements are made based on Example 2. Figure 3 and Figure 4 It can be seen that there is a detection switch 19 fixed by bolts on the inner side of the liquid storage box 8, and correspondingly, an alarm light 5 is threadedly fixed on the surface of the support auxiliary plate 4, and the detection switch 19 and the alarm light 5 are connected in series with a power supply. When the detection switch 19 is squeezed, the alarm light 5 on the surface of the support auxiliary plate 4 will continue to flash, so as to warn the operator that there may be problems with the fixation of the cargo and maintenance is required.

[0038] Specifically, as described in Example 2, when the cargo is fixed, the rope limit slider 7 will generally be located near the limit slider 6 at the bottom of the cargo, and the rope limit slider 7 is relatively far away from the detection switch 19. If during transportation, the wire rope 10 becomes loose, the increase in the medium pressure inside the telescopic connecting tube 13 will push the rope limit slider 7 toward the detection switch 19. If the rope limit slider 7 can still tighten the cargo after tightening the wire rope 10, then the contents described in Example 2 are achieved. If the rope limit slider 7 moves to the left and does not tighten the wire rope 10, the rope limit slider 7 that continues to move to the left will eventually squeeze the detection switch 19. The detection switch 19 keeps the alarm light 5 and the power supply connected, and the alarm light 5 flashes continuously, thereby alerting the operator that the wire rope 10 may not be tightly tightened. It should be noted that, in combination with Figure 2 It can be seen that there are four limit main frames 3 and four warning lights 5. Therefore, each warning light 5 is electrically connected to the detection switch 19 in each limit main frame 3, so as to ensure that when the goods are not tightly bound, the operator can quickly inspect the accident point.

[0039] On this basis, combined with Figure 3 , Figure 4 and Fig.10 It can be clearly seen that the side of the pull rope limit slider 7 is provided with an alarm damping hole 701 located above the main damping hole 702, and the central axis of the alarm damping hole 701 is directly opposite to the detection switch 19. At the same time, the top of the inner side of the adjustment cavity 700 is at a certain distance from the central axis of the alarm damping hole 701. Figure 4 It can be clearly seen that the cross-section of the adjustment slide 14 is in an "L" shape. In specific implementation, if the amount of hydraulic oil in the liquid storage tank 8 is sufficient, the hydraulic oil will fill the adjustment chamber 700 through the alarm damping hole 701. Combined with the content of the second embodiment, it can be seen that when the deck 1 of the cargo ship shakes due to environmental factors, the transmission telescopic rod 15 will push the adjustment slide 14 upward to open the main damping hole 702, thereby realizing medium damping shock absorption. Since the hydraulic oil in the liquid storage tank 8 is relatively sufficient at this time, when the top surface of the adjustment slide 14 moves upward and passes over the alarm damping hole 701, the main damping hole 702 will be opened. Figure 4 It can be seen that a relatively sealed space is formed between the top of the adjusting slide 14 and the adjusting chamber 700, in which a sufficient amount of hydraulic oil is stored. Combined with the characteristic that hydraulic oil is not easily compressed, when the adjusting slide 14 moves upward to open the main damping hole 702, the side of the adjusting slide 14 will block the alarm damping hole 701.

[0040] If the amount of hydraulic oil in the liquid storage tank 8 is insufficient, when the top of the adjusting slide 14 passes over the alarm damping hole 701, the space between the top of the adjusting slide 14 and the adjusting chamber 700 is filled with external air, and the air can be compressed within a certain limit. Therefore, the transmission telescopic rod 15 will push the adjusting slide 14 to continue to move upward, thereby making the alarm damping hole 701 also communicate with the telescopic connecting pipe 13. As the hydraulic oil in the telescopic connecting pipe 13 is pressurized by the damping piston 16, the hydraulic oil flows to the left from the alarm damping hole 701 in the form of a jet. Due to the reduction of the amount of lubricating oil in the liquid storage tank 8, there is no medium obstruction between the positioning seat 18 and the alarm damping hole 701, and the lubricating oil jet will hit the detection switch 19 aligned with it, and the detection switch 19 is forced to squeeze. As mentioned above, when the detection switch 19 is squeezed, the corresponding alarm light 5 will flash synchronously, thereby alerting external personnel that the amount of lubricating oil here is reduced and needs to be added.

[0041] In summary, it can be seen that, based on the previous two embodiments, the third embodiment is equipped with a detection switch 19 and an alarm light 5, which can not only detect whether the steel wire rope 10 is fastening the cargo, but also quickly know whether the amount of hydraulic oil in the liquid storage tank 8 is normal, so as to ensure that the medium buffering and shock absorption method can operate stably. Therefore, the detection switch 19 is used to detect the safety of the entire device to ensure that the device can stably fix and buffer the cargo.

Claims

1. An intelligent barrier protection device for cargo safety applied to deck cargo ships, characterized in that: include: A cargo ship deck (1) having a limit frame (2) fixed to the surface; The middle connecting frame (11) is located at the center of the limiting frame (2), and the limiting main frame (3) is fixed on the side of the middle connecting frame (11), and the supporting auxiliary plate (4) is fixed on the limiting main frame (3); A damping chamber (300) is provided inside the position-limiting main frame (3), and a damping piston (16) is movably installed in the damping chamber (300), a damping spring (12) is connected between one end of the damping piston (16) and the inner side of the position-limiting main frame (3), and a damping plate (9) is fixedly installed at the other end of the damping piston (16); The cargo bottom limit slide (6) and the rope limit slider (7) are both movably mounted on the top of the limit main frame (3); a liquid drainage groove (302) communicating with the damping chamber (300) is provided on the inner side of the limit main frame (3); a telescopic connecting pipe (13) is fastened between the rope limit slider (7) and the limit main frame (3); a main damping hole (702) is provided inside the rope limit slider (7); a liquid storage box (8) is bolted and fixedly connected to the end of the limit main frame (3); a reflux groove (301) is provided on the limit main frame (3); and a telescopic guide tube is fixed between the side of the liquid storage box (8) and the rope limit slider (7).

2. The intelligent barrier protection device for cargo safety applied to deck cargo ships according to claim 1 is characterized in that: There are four position-limiting main frames (3), and the middle connecting frame (11) is respectively fixed to the ends of the four position-limiting main frames (3), thereby forming a "cross"-shaped frame.

3. The intelligent barrier protection device for cargo safety applied to deck cargo ships according to claim 1 is characterized in that: An oil replenishing hole (800) is provided on the top of the liquid storage box (8).

4. The intelligent barrier protection device for cargo safety applied to deck cargo ships according to any one of claims 1 or 3, characterized in that: A one-way valve (160) is fixedly mounted on the top of the damping piston (16).

5. The intelligent barrier protection device for cargo safety applied to deck cargo ships according to claim 1 is characterized in that: A reversing wheel (600) is installed on the top of the cargo bottom limit slide (6), and the steel wire rope (10) tied to the cargo top is reversed through the reversing wheel (600); The top of the rope-limiting slider (7) is provided with a rope-pressing cover plate (703) fastened by bolts. The top of the rope-limiting slider (7) and the rope-pressing cover plate (703) are used to press the steel wire rope (10) to fix the steel wire rope (10).

6. The intelligent barrier protection device for cargo safety applied to deck cargo ships according to claim 5 is characterized in that: An adjustment cavity (700) is provided on the inner side of the pull rope limit slider (7), an adjustment slide seat (14) is movably installed on the inner side of the pull rope limit slider (7), a slide seat limit block (140) is bolted to the bottom of the pull rope limit slider (7), a transmission telescopic rod (15) is fixedly installed on the end of the adjustment slide seat (14), the transmission telescopic rod (15) is located inside the telescopic connecting tube (13), a positioning seat (18) is fixedly connected to the inside of the limit main frame (3), and a sealing plug (17) is movably installed in the positioning seat (18), a sealing spring (170) is connected between the sealing plug plate (17) and the positioning seat (18), and one end of the transmission telescopic rod (15) is fixedly installed on the side of the sealing plug plate (17).

7. The intelligent barrier protection device for cargo safety applied to deck cargo ships according to claim 6 is characterized in that: A detection switch (19) is bolted and fixedly connected to the inner side of the liquid storage box (8), an alarm light (5) is threadedly fixed on the surface of the supporting auxiliary plate (4), and a power source is connected in series between the detection switch (19) and the alarm light (5).

8. The intelligent barrier protection device for cargo safety applied to deck cargo ships according to claim 7 is characterized in that: An alarm damping hole (701) located above the main damping hole (702) is provided on the side of the pull rope limiting slider (7), and the central axis of the alarm damping hole (701) is directly opposite to the detection switch (19).

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