An intelligent barrier protection device for cargo safety applied to deck cargo ships

Abstract

This application relates to the technical field of ship transportation, and discloses an intelligent barrier protection device for the safety of deck cargo on a deck cargo ship. To solve the problem of poor seismic performance caused by the cargo being fastened to the deck, the cargo is fastened to the main limiting frame, and the main limiting frame and the limiting frame are arranged movably. When the deck of the cargo ship shakes due to marine environmental factors, the main limiting frame will move relative to the limiting frame. On the one hand, elastic shock absorption is carried out by compressing the damping spring. On the other hand, the damping piston is used to squeeze the medium oil in the damping cavity so that it passes through the damping hole for shock absorption and buffering, thereby reducing the impact pressure of the cargo on the deck of the cargo ship. When the deck of the cargo ship is relatively stable, the elastic reset of the damping spring is used to keep the damping piston in the best damping state all the time, so as to adapt to the buffering and shock absorption of the shakes generated in all directions, and finally achieve the effect of synchronous buffering and shock absorption of elasticity and medium damping.

Description

Technical Field

[0001] This application relates to the technical field of ship transportation, and particularly to an intelligent barrier protection device for the safety of deck cargo ships. Background Art

[0002] The transportation of deck cargo ships, as a special maritime transportation method, its core mission is to safely and efficiently transport large, heavy or special goods that are too large in size, too heavy in weight or have special physical and chemical properties and cannot or are not suitable to be placed inside the cabin. These goods may include, but are not limited to, large mechanical equipment, heavy steel and special chemical products, etc.

[0003] On the vast sea, ships will inevitably encounter various tests of natural forces during navigation, such as surging 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 goods on the deck. As the ship sways in the waves, the goods on the deck will also sway to varying degrees. If this swaying fails to be controlled by effective means, it will cause serious damage to the goods themselves, such as breakage, deformation or even functional failure. At the same time, the swaying of the goods will also increase the impact pressure on the deck. In the long run, it may cause damage to the deck structure, affecting the overall stability and service life of the ship.

[0004] To address this challenge, the traditional approach mainly relies on physical devices such as connecting brackets to firmly fasten the goods to the deck. This method can, to a certain extent, reduce the swaying of the goods, but its limitations become obvious when faced with extremely harsh sea conditions. Since the connecting parts need to withstand huge tensile and shear forces, once they exceed their design strength, they may break or fail, resulting in the goods losing their fixation and slipping or colliding. In addition, even if the connecting parts remain intact, long-term severe swaying may cause cumulative damage to the deck structure, gradually weakening its load-bearing capacity. Summary of the Invention

[0005] This application proposes an intelligent barrier protection device for the safety of deck cargo ships, which has the advantages of elastic and medium damping synchronous buffering and shock absorption, so as to solve the problem of poor seismic performance caused by fastening the goods on the deck in the above-mentioned background art.

[0006] To achieve the above object, the present application adopts the following technical solutions: An intelligent barrier protection device for the safety of cargo on a deck cargo ship, comprising: a cargo ship deck with a limiting frame fixed on its surface; an intermediate connecting frame located at the center of the limiting frame, and a limiting main frame fixed to the side of the intermediate connecting frame, with a supporting auxiliary plate fixed on the limiting main frame; a damping cavity opened inside the limiting main frame, and a damping piston movably installed in the damping cavity. One end of the damping piston is connected to the inner side of the limiting main frame by a damping spring, and the other end of the damping piston is fixedly installed with a damping plate; a bottom limit slide of the cargo and a rope limit slider are both movably installed on the top of the limiting main frame. A liquid discharge groove communicating with the damping cavity is opened on the inner side of the limiting main frame. A telescopic connecting pipe is tightly connected between the rope limit slider and the limiting main frame. A main damping hole is opened inside the rope limit slider. The end of the limiting main frame is bolted to a liquid storage tank, and a return flow groove is opened on the limiting main frame. A telescopic conduit is fixed between the side of the liquid storage tank and the rope limit slider.

[0007] Further, there are four limiting main frames, and the intermediate connecting frame is respectively fixed to the ends of the four limiting main frames to form a "cross" shaped frame.

[0008] Further, an oil filling hole is opened at the top of the liquid storage tank.

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

[0010] Further, a reversing wheel is installed at the top of the bottom limit slide of the cargo, and the steel wire rope after bundling the top of the cargo passes through the reversing wheel for reversing; there is a rope pressing cover plate fastened by bolts at the top of the rope limit slider, and the steel wire rope is pressed by the top of the rope limit slider and the rope pressing cover plate to fix the steel wire rope.

[0011] Further, an adjustment cavity is opened inside the rope limit slider, and an adjustment slide is movably installed inside the rope limit slider. A slide limit stop block is bolted to the bottom of the rope limit slider. One end of the adjustment slide is fixedly installed with a transmission telescopic rod, and the transmission telescopic rod is located inside the telescopic connecting pipe. A positioning seat is fixedly connected inside the limiting main frame, and a sealing plug plate is movably installed in the positioning seat. A sealing spring is connected between the sealing plug plate and the positioning seat, and one end of the transmission telescopic rod is fixedly installed on the side of the sealing plug plate.

[0012] Further, a detection switch is bolted to the inside of the liquid storage tank, and an alarm lamp is threadedly fixed on the surface of the supporting auxiliary plate, and the detection switch and the alarm lamp are connected in series with the power supply.

[0013] Further, an alarm damping hole is opened on the side of the rope limit slider above the main damping hole, 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:

[0015] An intelligent barrier protection device for cargo safety applied to deck cargo ships provided by this application aims to significantly improve the stability and safety of cargo under complex sea conditions. The cargo is precisely fastened to the main limiting frame, and a flexible movable arrangement is adopted between the main limiting frame and the limiting frame.

[0016] When the deck of the cargo ship inevitably sways due to marine environmental factors (such as waves, sudden changes in wind direction, etc.), the main limiting frame can move relatively within the limiting frame. On the one hand, the built-in compression damping spring immediately comes into play, absorbing and reducing the impact force generated by the sway through its elastic deformation to achieve a preliminary shock absorption effect. On the other hand, the damping piston squeezes the medium oil in the damping cavity during the sway, forcing the medium oil to flow slowly through the damping holes. The resistance generated in this process further consumes the energy of the sway, achieving deep shock absorption and buffering. This dual shock absorption mechanism significantly reduces the impact pressure of the cargo on the deck of the cargo ship, effectively avoiding the deformation or damage of the deck caused by excessive local pressure.

[0017] When the deck of the cargo ship is in a relatively stable state, the device does not stop working. Instead, 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 meet the sway challenges from all directions. This intelligent adaptive ability enables the protection device to always maintain the best shock absorption and buffering effect under different sea conditions, providing all-round and continuous protection for the deck cargo. Description of the Drawings

[0018] The drawings forming a part of the specification depict the embodiments disclosed in this application and, together with the specification, are used to explain the principles disclosed in this application.

[0019] Referring to the drawings, this application can be more clearly understood according to the following detailed description, where:

[0020] Figure 1 is a schematic diagram of the overall external three-dimensional structure;

[0021] Figure 2 is a schematic diagram of the overall top view structure;

[0022] Figure 3 is Figure 2 a schematic cross-sectional structure diagram at A-A in

[0023] Figure 4 is Figure 3 a schematic enlarged structure diagram at E in

[0024] Figure 5 is Figure 3 a schematic enlarged structure diagram at F in

[0025] Figure 6 Schematic diagram of the overall bottom three-dimensional structure;

[0026] Figure 7 Schematic diagram of the internal three-dimensional structure of the limit main frame;

[0027] Figure 8 Schematic diagram of the three-dimensional structure of the limit sliding seat at the bottom of the goods;

[0028] Figure 9 Schematic diagram of the three-dimensional structure of the rope-pulling limit slider;

[0029] Figure 10 Schematic diagram of the internal three-dimensional sectional structure of the rope-pulling limit slider;

[0030] Figure 11 Schematic diagram of the internal three-dimensional sectional structure of the positioning seat.

[0031] In the figure: 1. Cargo ship deck; 2. Limit frame; 3. Limit main frame; 300. Damping cavity; 301. Return flow groove; 302. Drainage groove; 4. Support auxiliary plate; 5. Alarm lamp; 6. Limit sliding seat at the bottom of the goods; 600. Reversing wheel; 7. Rope-pulling limit slider; 700. Adjustment cavity; 701. Alarm damping hole; 702. Main damping hole; 703. Rope-pressing cover plate; 8. Liquid storage tank; 800. Oil replenishing hole; 9. Damping plate; 10. Steel wire rope; 11. Intermediate connecting frame; 12. Damping spring; 13. Telescopic connecting pipe; 14. Adjustment sliding seat; 140. Sliding seat limit stop; 15. Transmission telescopic rod; 16. Damping piston; 160. Check valve; 17. Plugging plate; 170. Plugging spring; 18. Positioning seat; 19. Detection switch. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application. Embodiment 1

[0033] Please refer to Figure 1 It can be seen that there is a limit frame 2 fixedly connected by bolts on the surface of the cargo ship deck 1. The shape of the limit frame 2 is square, thereby restricting the movement range of the devices located inside it. Combining Figure 6It can be clearly seen that there is a main limiting frame 3 fixed and installed on the side of the middle connecting frame 11 by bolts. There are four main limiting frames 3. The middle connecting frame 11 is respectively fixed to the ends of the four main limiting frames 3, thus forming a "cross" - shaped frame. The main limiting frames 3 are fixedly connected by bolts with supporting auxiliary plates 4. The surface of the supporting auxiliary plates 4 and the side parts of the main limiting frames 3 form a complete plane for placing the goods to be transported.

[0034] A damping cavity 300 is opened inside the main limiting frame 3. Combined with Figure 3 it can be seen that a damping piston 16 is movably installed in the damping cavity 300, and the damping piston 16 can reciprocate in the damping cavity 300. One end of the damping piston 16 is connected with a damping spring 12 between the inner side of the main limiting frame 3. The other end of the damping piston 16 is fixedly installed with a damping plate 9 extending from the end of the main limiting frame 3. Under the elastic force of the damping spring 12, the damping plate 9 is pushed against the inner side of the limiting frame 2. Further, the end of the damping plate 9 is rectangular, and a corresponding rectangular channel is opened on the inner side of the limiting frame 2, so that the damping plate 9 is always pushed against the rectangular channel on the inner side of the limiting frame 2 under the elastic force of the damping spring 12. Combining what is said above, there are four main limiting frames 3. Therefore, the four main limiting frames 3 are respectively corresponding to the four inner side walls of the limiting frame 2. Affected by the elastic force of the damping spring 12, the middle connecting frame 11 is forced to be always in the middle of the inner side of the limiting frame 2 under normal conditions.

[0035] In order to fix the goods, referring to Figure 3 and Figure 7 it can be seen that a goods bottom limiting slide 6 and a rope - pulling limiting slider 7 are movably installed on the top of the main limiting frame 3, and the goods bottom limiting slide 6 and the rope - pulling limiting slider 7 can only move reciprocally in a fixed direction along the rectangular groove opened on the top of the main limiting frame 3. Combining Figure 7 and Figure 8 it can be clearly seen that the goods bottom limiting slide 6 can be restricted on the top of the main limiting frame 3 by the bolts arranged on the outside. As shown in Figure 2 when the goods are placed at the position of the middle connecting frame 11, the goods bottom limiting slide 6 is close to the outside of the goods and locked by bolts, so that the goods can be fastened on the loading platform constructed by the middle connecting frame 11, the main limiting frame 3 and the supporting auxiliary plate 4. Combining Figures 3 - 5It can be clearly seen that a drain groove 302 communicating with the right chamber of the damping chamber 300 is provided inside the limit main frame 3. At the same time, a telescopic connecting pipe 13 is fixedly connected between the cable limit slider 7 and the limit main frame 3. The drain groove 302 and the main damping hole 702 provided inside the cable limit slider 7 can be connected by using the telescopic connecting pipe 13. Correspondingly, a liquid storage tank 8 is fixedly connected to the end of the limit main frame 3 by bolts, and a return groove 301 for communicating the inner cavity of the liquid storage tank 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 tank 8 and the cable limit slider 7, so that the right chamber of the damping chamber 300 is communicated with the left chamber of the damping chamber 300 after passing through the drain groove 302, the telescopic connecting pipe 13, the main damping hole 702, the telescopic conduit, the liquid storage tank 8 and the return groove 301. In order to achieve medium damping buffer and shock absorption, combined with Figure 7 As can be seen, an oil filling hole 800 is provided at the top of the liquid storage tank 8. The external hydraulic oil can be injected into the inner cavity of the liquid storage tank 8 by using the oil filling hole 800, so as to fill the damping chamber 300 and the connecting lines. When the damping plate 9 pushes the damping piston 16 to move in the damping chamber 300, the hydraulic oil in the damping chamber 300 is extruded by the damping piston 16, and the hydraulic oil passes through the main damping hole 702 to achieve medium damping buffer.

[0036] In actual application, the goods to be transported are transferred above the intermediate connecting frame 11 by means of equipment such as a forklift or a hoist, and the limit slide seat 6 at the bottom of the goods is bolted to the limit main frame 3 to realize the fastening of the goods. Under normal conditions, due to the elastic force of the damping spring 12, the damping piston 16 pushes the damping plate 9 to the rectangular channel inside the limit 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 will always be located at the center of the limit frame 2 under the action of the elastic force.

[0037] The hydraulic oil is added into the inner cavity of the liquid storage tank 8 from the oil filling hole 800 by means of pumping or injection, so that the damping chamber 300 is filled with hydraulic oil, which is convenient for subsequent liquid medium damping buffer and shock absorption.

[0038] When the cargo ship deck 1 is inevitably shaken due to marine environmental factors, the relative movement between the cargo ship deck 1 and the main limiting frame 3 will push the damping piston 16 through the damping plate 9 to squeeze the damping spring 12, causing the main limiting 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 also be added between the main limiting frame 3 and the cargo ship deck 1 to reduce the contact friction between the main limiting frame 3 and the cargo ship deck 1, making it more convenient for the main limiting frame 3 to move on the surface of the cargo ship deck 1. After the cargo ship deck 1 shakes, the damping plate 9 pushes the damping piston 16 to squeeze the damping spring 12. By using the compression of the damping spring 12, elastic buffering is carried out between the main limiting frame 3 and the cargo ship deck 1 to achieve a preliminary shock absorption effect.

[0039] When the damping piston 16 compresses the hydraulic oil in the right chamber of the damping cavity 300, the right hydraulic oil is pressurized and passes through the main damping hole 702 after passing through the drain groove 302 and the telescopic connecting pipe 13, and further buffering and shock absorption are achieved by using the hydraulic oil passing through the main damping hole 702. To ensure the stability of the damping, in the actual application process, referring to Figure 3 and Figure 7 it can be clearly seen that a one-way valve 160 is fixedly installed at the top of the damping piston 16, and the one-way valve 160 realizes the one-way transmission of the hydraulic oil in the left chamber to the right. This method can ensure that when the damping piston 16 moves to the left, the right chamber can be quickly replenished with hydraulic oil 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 squeezes to the left, it can prevent the hydraulic oil pressure on the left from being too large 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, it may cause the phenomenon of hydraulic oil spraying out from the oil replenishing hole 800. Therefore, through the arrangement of the one-way valve 160, not only can the medium damping be carried out stably, but also the reverse spraying of hydraulic oil can be prevented, greatly improving the safety and stability of the equipment application.

[0040] Finally, when the cargo ship deck 1 is relatively stable, the elastic force of the damping spring 12 will force the intermediate connecting frame 11 to return to the middle of the limiting frame 2, causing each damping piston 16 to be in the middle of the damping cavity 300. When the damping piston 16 moves in the damping cavity 300, it can squeeze the hydraulic oil in the right chamber of the damping cavity 300 in the first time, making the medium damping shock absorption more sensitive.

[0041] Combined with Figure 2As can be seen, since there are four limiting main frames 3, a damping plate 9 that protrudes into the inner side of the limiting frame 2 corresponds to each limiting main frame 3. On the one hand, the damping plate 9 is used for limiting by moving in the rectangular channel on the inner side of the limiting frame 2. On the other hand, the damping plates 9 arranged in four directions can adapt to the shaking caused by the cargo ship deck 1 in different directions, ensuring that when the cargo is impacted in any direction, the damping spring 12 and hydraulic oil can be used for buffering and shock absorption. Embodiment 2

[0042] On the basis of Embodiment 1, for further improvement, please refer to Figure 1 and Figure 2 It can be seen that in order to further fix the cargo, in this Embodiment 2, a steel wire pulling rope 10 is used to bundle and fix the cargo. Specifically, referring to Figure 8 and Figure 9 it can be clearly seen that a reversing wheel 600 is installed on the top of the limiting sliding seat 6 at the bottom of the cargo. The steel wire pulling rope 10 after bundling the top of the cargo passes through the reversing wheel 600 for reversing and is finally fixed on the pulling rope limiting slider 7. Since the limiting sliding seat 6 at the bottom of the cargo is closely attached to the bottom of the cargo, the steel wire pulling rope 10 is also relatively close to the cargo, further preventing the cargo from shifting. There is a pressing rope cover plate 703 fastened by bolts on the top of the pulling rope limiting slider 7. The top of the pulling rope limiting slider 7 and the pressing rope cover plate 703 are used to press the steel wire pulling rope 10 to realize the fixation of the steel wire pulling rope 10. Combining the content described in Embodiment 1 and Figure 2 as shown, since there are four limiting main frames 3, the pulling rope limiting sliders 7 on two symmetric limiting main frames 3 can fix one steel wire pulling rope 10. Finally, the two steel wire pulling ropes 10 can be cross-fixed.

[0043] During actual application, in the initial state, the limiting sliding seat 6 at the bottom of the cargo is fastened to the bottom of the cargo as described in Embodiment 1. The steel wire pulling rope 10 passes through the top of the cargo and is locked and fastened between the pulling rope limiting slider 7 and the pressing rope cover plate 703 after passing through the reversing wheel 600. At this time, the pulling rope limiting slider 7 is close to the limiting sliding seat 6 at the bottom of the cargo, and the telescopic connecting pipe 13 is in a fully contracted state.

[0044] When the cargo ship deck 1 shakes due to 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. At this time, referring to Figure 4 it can be known 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 pulling rope limiting slider 7 to have a tendency to move to the left. Combining that the steel wire pulling rope 10 is fastened to the top of the pulling rope limiting slider 7, when the pulling rope limiting slider 7 moves outwards, the steel wire pulling rope 10 will be further tightened, thus ensuring the fixation of the cargo.

[0045] Although this method can enhance the pulling strength of the cable limit slider 7 on the steel cable 10, when the cargo ship deck 1 is in a stable state, the medium pressure on the right side of the damping piston 16 is also relatively reduced, and thus it is impossible to provide continuous pushing force to the cable limit slider 7. During actual application, if the cable limit slider 7 is affected by the medium pressure and the steel cable 10 is further pulled, the cable limit slider 7 moves outward under the influence of the pressure. When the pressure is removed, the cable limit slider 7 is also likely to move towards the direction close to the cargo. When the cargo is suddenly shaken, it is still prone to deviation.

[0046] To solve such problems, on this basis, an adjustment cavity 700 is provided inside the cable limit slider 7, combined with Figure 4 and Figure 10 It can be clearly seen that an adjustment slide base 14 is movably installed inside the cable limit slider 7. When the adjustment slide base 14 moves downward, it can block the main damping hole 702. To facilitate the installation of the adjustment slide base 14, a slide base limit stopper 140 is fixed to the bottom of the cable limit slider 7 by bolts. When the slide base limit stopper 140 is removed, the adjustment slide base 14 can be easily taken out, which is conducive to the assembly and replacement of the adjustment slide base 14. A transmission telescopic rod 15 is fixedly installed at the end of the adjustment slide base 14 by bolts. The transmission telescopic rod 15 is located inside the telescopic connecting pipe 13, combined with Figure 5 and Figure 11 It can be seen from that a positioning seat 18 is fixedly connected inside the limit main frame 3, and a plugging plate 17 is movably installed in the positioning seat 18. A plugging spring 170 is connected between the plugging plate 17 and the positioning seat 18. Under the elastic push of the plugging spring 170, the plugging plate 17 can block the drain groove 302 under normal conditions, thereby separating the damping cavity 300 from the telescopic connecting pipe 13. One end of the transmission telescopic rod 15 is fixedly installed on the side of the plugging plate 17, so that the adjustment slide base 14 can move synchronously with the plugging plate 17 through the transmission telescopic rod 15.

[0047] Specifically, when the cargo ship deck 1 shakes, the damping piston 16 squeezes the hydraulic oil in the right chamber of the damping cavity 300. The hydraulic oil under pressure will be output from the drain groove 302, causing the plugging plate 17 to move upward and compress the plugging spring 170. The hydraulic oil in the drain groove 302 is delivered to the telescopic connecting pipe 13. At the same time, when the plugging plate 17 moves upward, the adjustment slide base 14 is synchronously driven to move upward through the transmission telescopic rod 15, resulting in the connection between the main damping hole 702 and the telescopic connecting pipe 13. When the hydraulic oil in the telescopic connecting pipe 13 passes through the main damping hole 702, medium damping buffering is achieved. At the same time, the cable limit slider 7 is pushed to move to the left by the increased hydraulic pressure in the telescopic connecting pipe 13, thereby further tightening the steel cable 10.

[0048] When the deck 1 of the cargo ship tends to be relatively stable, the damping cavity 300 will no longer input hydraulic oil into the telescopic connecting pipe 13. At this time, the plugging spring 170 elastically pushes the plugging plate 17 to block the liquid discharge groove 302. At the same time, the plugging plate 17 pulls the adjusting sliding seat 14 through the transmission telescopic rod 15 to block the main damping hole 702, resulting in a sealed space inside the telescopic connecting pipe 13. When the goods shake and pull the rope limiting slider 7 to move to the right through the steel wire pull rope 10, due to the relative sealing of the telescopic connecting pipe 13 and the in compressibility of the hydraulic oil inside the telescopic connecting pipe 13, the movement of the rope limiting slider 7 to the right will be restricted, and then the steel wire pull rope 10 will always be restricted from pulling the goods, ensuring the stability of the goods transportation. Embodiment III

[0049] Based on the further improvement of Embodiment II, please refer to Figure 3 and Figure 4 It can be seen that there is a detection switch 19 fixedly connected by bolts inside the liquid storage tank 8. Correspondingly, an alarm lamp 5 is fixedly threaded on the surface of the support auxiliary plate 4, and the detection switch 19 and the alarm lamp 5 are connected in series with the power supply. When the detection switch 19 is squeezed, the alarm lamp 5 on the surface of the support auxiliary plate 4 will continuously flash, so as to warn the operator that there may be a problem with the fixation of the goods and maintenance is required.

[0050] Specifically, as described in Embodiment II, when the goods are fixed, the rope limiting slider 7 is generally located near the bottom limiting slider 6 of the goods, and the rope limiting slider 7 is relatively far from the detection switch 19. If the steel wire pull rope 10 becomes loose during transportation, the increased pressure of the medium inside the telescopic connecting pipe 13 will push the rope limiting slider 7 closer to the detection switch 19. If the rope limiting slider 7 can still fasten the goods after tightening the steel wire pull rope 10, the content described in Embodiment II is achieved. If the rope limiting slider 7 moves to the left and does not tighten the steel wire pull rope 10, the continuously moving rope limiting slider 7 will eventually squeeze the detection switch 19, and the detection switch 19 will continuously connect the alarm lamp 5 and the power supply, and the alarm lamp 5 will emit continuous flashes to warn the operator that the steel wire pull rope 10 may be loose here. It should be noted that, as can be seen from Figure 2 There are four limiting main frames 3 and four alarm lamps 5. Therefore, each alarm lamp 5 is electrically connected to the detection switch 19 in each limiting main frame 3 to ensure that when the goods are not tightly tied, the operator can quickly repair the accident point.

[0051] On this basis, combined with Figure 3 、 Figure 4 and Figure 10It can be clearly seen that an alarm damping hole 701 is provided in the side of the drawstring limit slider 7 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, there is a certain distance between the inner top of the adjustment cavity 700 and the central axis of the alarm damping hole 701. Refer to Figure 4 It can be clearly seen that the cross-sectional shape of the adjustment sliding seat 14 is "L"-shaped. In specific implementation, when the hydraulic oil in the liquid storage tank 8 is sufficient, the hydraulic oil will fill the adjustment cavity 700 through the alarm damping hole 701. Combining the content in the second embodiment, it can be known that when the cargo ship deck 1 shakes due to environmental factors, it will push the adjustment sliding seat 14 upward through the transmission telescopic rod 15, so that the main damping hole 702 is opened, thereby realizing medium damping and 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 sliding seat 14 moves upward and crosses the alarm damping hole 701, from Figure 4 it can be seen that a relatively sealed space will be formed between the top of the adjustment sliding seat 14 and the adjustment cavity 700, and a sufficient amount of hydraulic oil is stored in this space. Combining the characteristic that hydraulic oil is not easily compressed, when the adjustment sliding seat 14 moves upward to open the main damping hole 702, the side of the adjustment sliding seat 14 will block the alarm damping hole 701.

[0052] If the hydraulic oil in the liquid storage tank 8 is insufficient, when the top of the adjustment sliding seat 14 crosses the alarm damping hole 701, the space between the top of the adjustment sliding seat 14 and the adjustment cavity 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 adjustment sliding seat 14 to continue moving upward, and then the alarm damping hole 701 will 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 moves to the left in a jet manner from the alarm damping hole 701. Due to the reduction of the lubricating oil amount 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 be squeezed. As mentioned above, when the detection switch 19 is squeezed, the corresponding alarm lamp 5 will flash synchronously, thereby warning external personnel that the lubricating oil amount here has decreased and needs to be added.

[0053] Generally speaking, on the basis of the first two embodiments, this third embodiment is provided with a detection switch 19 and an alarm lamp 5, which can not only detect whether the steel wire drawstring 10 fastens the goods, but also quickly know whether the hydraulic oil amount in the liquid storage tank 8 is normal, so as to ensure the stable operation of the medium buffer and shock absorption method. Therefore, the detection switch 19 is used to detect the safety of the whole device, and ensure that the device can stably fix and buffer the goods.

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 fixedly connected to the end of the limit main frame (3) by bolts; 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); 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).

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 claim 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: 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).

6. The intelligent barrier protection device for cargo safety applied to deck cargo ships according to claim 5 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).

7. The intelligent barrier protection device for cargo safety applied to deck cargo ships according to claim 6 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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