A marine protection device for liquefied natural gas storage

Abstract

The present invention belongs to the technical field of liquefied natural gas storage protection, and particularly relates to a marine protection device for liquefied natural gas storage, including a fixed seat, a support member and a placement plate. The fixed seat is fixedly installed on the hull by screws. A fixing mechanism for fixing the natural gas storage tank is arranged on the fixed seat. The placement plate and the fixing mechanism are linked through a transmission assembly. A strengthening and fixing assembly is arranged on the fixing mechanism. Through the linkage design of the transmission assembly and the fixing mechanism in this marine protection device for liquefied natural gas storage, when the placement plate moves downward, it drives the synchronous pulley two to rotate clockwise. By using the clamping structure of the elastic ratchet rod and the ratchet teeth, the rotating shaft rotates and drives the screw rod to rotate, thereby driving the positioning plate to quickly position and fix the outer wall of the natural gas storage tank. Compared with the traditional method of manually adjusting the tension of steel belts or steel cables one by one, the fixing time of the storage tank is greatly shortened, and the loading and unloading efficiency of the ship is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of liquefied natural gas storage protection, and particularly to a marine protection device for liquefied natural gas storage. Background Art

[0002] As a clean and efficient energy source, natural gas occupies an important position in the global energy structure. Liquefied natural gas (LNG) has become the main form of large-scale cross-regional transportation due to its high storage and transportation efficiency. In the waterway transportation scenario, LNG storage tanks are usually carried on the hull of a transport ship, and the reliability of their fixation and protection is directly related to transportation safety.

[0003] Currently, when transporting natural gas tanks on the hull, steel bases (such as I-beams and channel steel frames) are welded on the hull deck or bulkhead. The bases need to be firmly connected to the main hull structure (such as ribs and longitudinal girders). Then, the natural gas tank is lifted and installed on the base by a crane. Then, high-strength steel belts (such as stainless steel belts) or steel cables are used to surround the outer circumference of the storage tank and fixed to the hull base or fixed points through turnbuckles or hydraulic tensioners to achieve the fixation of the natural gas tank. However, the process of tightening through turnbuckles or hydraulic tensioners is relatively slow, seriously affecting the loading and unloading efficiency and making it difficult to meet the increasing demand for natural gas transportation timeliness. In view of this, a marine protection device for liquefied natural gas storage is proposed. Summary of the Invention

[0004] The main object of the present invention is to provide a marine protection device for liquefied natural gas storage, which can solve the problems raised in the above background art.

[0005] To achieve the above object, the marine protection device for liquefied natural gas storage proposed by the present invention includes a fixed seat, a support member and a placement plate. The fixed seat is fixedly installed on the hull by screws. A fixing mechanism for fixing the natural gas storage tank is provided on the fixed seat. The placement plate is linked with the fixing mechanism through a transmission component. A strengthening fixing component is provided on the fixing mechanism. The fixing mechanism includes:

[0006] A mounting seat, which is fixedly connected to the fixed seat. A groove is formed on the mounting seat, and a screw rod is rotatably connected in the groove.

[0007] A moving block, which is threadedly connected to the screw rod and slidably connected in the groove.

[0008] Connecting rod, one end of the connecting rod is fixedly connected to the moving block, and the other end of the connecting rod is fixed to the positioning plate. Among them, one side of the positioning plate close to the connecting rod is in an inclined state, and the side of the positioning plate away from the connecting rod is in a vertical state. The cross-bar part of the connecting rod is perpendicular to the inclined surface of the positioning plate. By positioning the natural gas storage tank with the positioning plate, the fixation of the natural gas storage tank can be achieved. At the same time, because the cross-bar part of the connecting rod is perpendicular to the inclined surface of the positioning plate, when the positioning plate is subjected to a squeezing force, the connecting rod is subjected to an upward component force, thereby making the moving block in close contact with the screw rod, preventing the screw rod from loosening and rotating and causing the movement of the moving block.

[0009] Preferably, the transmission assembly includes a driven assembly, a first synchronous pulley, a synchronous belt and a connecting piece. The synchronous belt is in transmission with the first synchronous pulley. The connecting piece is fixed to the synchronous belt, and one end of the connecting piece away from the synchronous belt is fixed to the placing plate.

[0010] Preferably, the driven assembly includes a second synchronous pulley. A ratchet tooth is fixedly connected to the inner wall of the second synchronous pulley. A clamping block is slidably connected to the inner wall of the second synchronous pulley. The clamping block is rotatably connected to a bolt. The bolt is threadedly connected to the second synchronous pulley. The second synchronous pulley is penetrated by a rotating shaft and is rotatably connected to the rotating shaft. An elastic ratchet rod is fixedly connected to the outer wall of the rotating shaft, and the elastic ratchet rod is engaged with the ratchet tooth. By engaging the elastic ratchet rod with the ratchet tooth, when the placing plate moves downward, the second synchronous pulley is driven to rotate clockwise. The elastic ratchet rod is limited by the ratchet tooth, so that the rotating shaft rotates, and then the screw rod rotates, driving the positioning plate to position the outer wall of the natural gas storage tank to achieve the fixation of the natural gas storage tank. And when the clamping block is away from the rotating shaft, the second synchronous pulley rotates counterclockwise and will not drive the rotating shaft to rotate. When the rotating clamping block abuts against the bolt, the second synchronous pulley rotates counterclockwise to drive the rotating shaft to rotate.

[0011] Preferably, the rotating shaft is fixed to the screw rod, and the second synchronous pulley is provided with a through hole matching the rotating shaft.

[0012] Preferably, both the first synchronous pulley and the second synchronous pulley are rotatably connected to the outer wall of the mounting seat.

[0013] Preferably, during the up and down movement of the placing plate, the connecting piece drives the synchronous belt to move, thereby driving the first synchronous pulley and the second synchronous pulley to rotate, and the screw rod rotates to adjust the position of the positioning plate.

[0014] Preferably, the strengthening and fixing component includes a fixing piece, which is fixedly connected to the outer wall of the positioning plate. The fixing piece is penetrated by a limiting guide rod and is slidably connected to the limiting guide rod. One end of the limiting guide rod away from the fixing piece is fixedly connected with a rectangular plate. The outer wall of the rectangular plate abuts against a rotating wheel, which is rotatably connected to a first swing rod. The first swing rod is hinged to a second swing rod. One end of the second swing rod away from the first swing rod is rotatably connected with a pressing wheel. The first swing rod and the second swing rod are connected by an adjusting telescopic rod. By positioning the natural gas storage tank through the positioning plate, the rectangular plate moves under the extrusion of the outer wall of the tank, the rectangle abuts against the rotating wheel and moves, the position of the first swing rod is adjusted, the second swing rod rotates and adjusts, and the pressing wheel presses the natural gas storage tank, strengthening the fixing effect on the natural gas storage tank. And by using the adjusting telescopic rod, the angles of the first swing rod and the second swing rod can be adjusted, so that the pressing wheel can fix natural gas storage tanks of different thicknesses.

[0015] Preferably, the rectangular plate and the fixing piece are elastically connected by a return spring. A positioning shaft is fixedly connected to the outer wall of the positioning plate. Both the first swing rod and the second swing rod are rotatably connected to the positioning shaft. The second swing rod and the positioning shaft are elastically connected by a torsion spring.

[0016] Preferably, both ends of the adjusting telescopic rod are hinged to the first swing rod and the second swing rod respectively.

[0017] Preferably, the supporting member is composed of a damper and a supporting spring. Both ends of the supporting member are fixed to the fixed seat and the placing plate respectively.

[0018] The present invention provides a marine protection device for liquefied natural gas storage, which has the following beneficial effects:

[0019] (1) Through the linkage design of the transmission component and the fixing mechanism of the marine protection device for liquefied natural gas storage, when the placing plate moves downward, it drives the second synchronous wheel to rotate clockwise. By using the clamping structure of the elastic ratchet rod and the ratchet teeth, the rotating shaft rotates and drives the screw to rotate, and then drives the positioning plate to quickly position and fix the outer wall of the natural gas storage tank. Compared with the traditional method of manually adjusting the tension of steel belts or steel cables one by one, the fixing time of the storage tank is greatly shortened, and the ship loading and unloading efficiency is improved.

[0020] (2) Through the special inclined surface design of the positioning plate of the marine protection device for liquefied natural gas storage, when it is subjected to the extrusion force of the storage tank, the connecting rod will receive an upward component force, which prompts the moving block to be in close contact with the screw, effectively preventing the screw from loosening and rotating due to external forces such as the hull bumping and the impact of sea waves, and ensuring the stable position of the moving block and the positioning plate. At the same time, the cooperation of the clamping block and the bolt in the driven component, when the clamping block moves away from the rotating shaft, the second synchronous wheel rotates counterclockwise and will not drive the rotating shaft, further avoiding the accidental rotation of the screw and ensuring the stability of the storage tank during transportation.

[0021] (3) The reinforced fixing assembly of the marine protective device for liquefied natural gas storage can be adaptively adjusted according to the size of the storage tank. After the positioning plate completes the initial positioning of the storage tank, the rectangular plate is squeezed by the outer wall of the tank to push the rotating wheel, driving the swing arm 1 and the swing arm 2 to move, so that the pressure wheel automatically fits the surface of the storage tank and applies pressure, thereby enhancing the fixing effect. The adjustable telescopic rod can flexibly change the angle of the swing arm 1 and the swing arm 2 to adapt to natural gas storage tanks of different thicknesses. The setting of the reset spring and the torsion spring facilitates the subsequent reset of the rectangular plate and the pressure wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 Schematic diagram of the fixing structure of the natural gas storage tank of the present invention Figure 1 ;

[0024] Figure 2 Schematic diagram of the fixing structure of the natural gas storage tank of the present invention Figure 2 ;

[0025] Figure 3 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0026] Figure 4 For the present invention Figure 3 Schematic diagram of the structure of A in the middle;

[0027] Figure 5 Schematic diagram of the fixing mechanism and transmission component of the present invention Figure 1 ;

[0028] Figure 6 For the present invention Figure 5 Schematic diagram of the structure of middle B;

[0029] Figure 7 Schematic diagram of the fixing mechanism and transmission component of the present invention Figure 2 ;

[0030] Figure 8 For the present invention Figure 7 Schematic diagram of the C structure;

[0031] Figure 9 This is a structural diagram of the synchronous wheel 2 of the present invention.

[0032] Description of Figure Numbers:

[0033] 1. Fixed seat; 2. Support member; 3. Placing plate; 4. Transmission assembly; 5. Fixing mechanism; 6. Reinforcing fixing assembly;

[0034] 41. Driven assembly; 42. First synchronous pulley; 43. Synchronous belt; 44. Connecting member; 411. Second synchronous pulley; 412. Ratchet teeth; 413. Clamping block; 414. Bolt; 415. Elastic ratchet rod; 416. Rotating shaft; 4101. Through port;

[0035] 51. Mounting seat; 52. Groove; 53. Screw; 54. Moving block; 55. Connecting rod; 56. Positioning plate;

[0036] 61. Fixing member; 62. Limit guiding rod; 63. Rectangular plate; 64. Rotating wheel; 65. First swing rod; 66. Second swing rod; 67. Positioning shaft; 68. Pressing wheel; 69. Adjusting telescopic rod.

[0037] The realization, functional features and advantages of the purpose of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figures 1-9 , the present invention provides a marine protection device for liquefied natural gas storage, including a fixed seat 1, a support member 2 and a placing plate 3. The support member 2 is composed of a damper and a support spring. The two ends of the support member 2 are respectively fixed to the fixed seat 1 and the placing plate 3. By using the damper and the support spring, when the natural gas storage tank is placed on the placing plate 3, the placing plate 3 will not drop rapidly, but will drop at a slower speed. The fixed seat 1 is fixedly installed on the hull through embedded screws. There is a fixing mechanism 5 for fixing the natural gas storage tank on the fixed seat 1. The placing plate 3 and the fixing mechanism 5 are linked through a transmission assembly 4. There is a reinforcing fixing assembly 6 on the fixing mechanism 5.

[0040] In an embodiment of the present invention, in order to be able to quickly fix the natural gas storage tank, specifically, the fixing mechanism 5 includes a mounting seat 51, a moving block 54 and a connecting rod 55. The mounting seat 51 is fixedly connected to the fixing seat 1. A groove 52 is provided on the mounting seat 51. A screw 53 is rotatably connected in the groove 52. The moving block 54 is threadedly connected to the screw 53. The moving block 54 is slidably connected in the groove 52. One end of the connecting rod 55 is fixedly connected to the moving block 54, and the other end of the connecting rod 55 is fixed to the positioning plate 56. The transmission assembly 4 includes a driven assembly 41, a synchronous wheel 42, a synchronous belt 43 and a connecting member 44. The synchronous belt 43 is transmitted to the synchronous wheel 42. The connecting member 44 is fixed to the synchronous belt 43, and the end of the connecting member 44 away from the synchronous belt 43 is fixed to the placement plate 3. The driven assembly 41 includes a synchronous wheel 2 411, a synchronous wheel 42 The second synchronous wheel 411 is rotatably connected to the outer wall of the mounting base 51, and a ratchet 412 is fixedly connected to the inner wall of the second synchronous wheel 411. The second synchronous wheel 411 is penetrated by the rotating shaft 416 and is rotatably connected to the rotating shaft 416. An elastic ratchet rod 415 is fixedly connected to the outer wall of the rotating shaft 416, and the elastic ratchet rod 415 is engaged with the ratchet 412. The rotating shaft 416 is fixed to the screw 53. The second synchronous wheel 411 is provided with a through hole 4101 that matches the rotating shaft 416. When the placement plate 3 moves up and down, the connecting piece 44 drives the synchronous belt 43 to move, thereby driving the synchronous wheel 1 42 and the synchronous wheel 2 411 to rotate. The screw 53 rotates to adjust the position of the positioning plate 56. When the placement plate 3 is lowered by the natural gas storage tank, the connecting piece 44 is driven to fall, thereby driving the synchronous belt 43 to move, so that the synchronous wheel 1 42 and the synchronous wheel 2 411 rotate. Please refer to Figure 8 , the synchronous wheel 411 rotates clockwise, and since the elastic ratchet rod 415 is limited by the ratchet teeth 412, the rotating shaft 416 rotates, and then the screw 53 rotates, driving the moving block 54 to slide in the groove 52, and then driving the positioning plate 56 to automatically position the outer wall of the natural gas storage tank, thereby fixing the natural gas storage tank. Compared with the traditional method of manually adjusting the tension of steel belts or steel cables one by one, this method greatly shortens the tank fixing time and improves the efficiency of ship loading and unloading.

[0041] Furthermore, in order to ensure the stability of the positioning plate 56, specifically, the side of the positioning plate 56 close to the connecting rod 55 is in an inclined state, and the side of the positioning plate 56 away from the connecting rod 55 is in a vertical state, and the cross bar part of the connecting rod 55 is perpendicular to the inclined surface of the positioning plate 56. Through this design, when the positioning plate 56 is subjected to the squeezing force of the tank, the connecting rod 55 will be subjected to an upward component of force, prompting the moving block 54 to be in close contact with the screw 53, effectively preventing the screw 53 from loosening and rotating due to external forces such as hull bumps and wave impacts, thereby ensuring the stability of the position of the moving block 54 and the positioning plate 56.

[0042] Further, in order to enable the positioning plate 56 to remain stable when the hull bumps, and at the same time, facilitate the subsequent removal of the natural gas storage tank. Specifically, a clamping block 413 is slidably connected to the inner wall of the second synchronous pulley 411. The clamping block 413 is rotatably connected to a bolt 414, and the bolt 414 is threadedly connected to the second synchronous pulley 411. When the clamping block 413 is away from the rotating shaft 416, the counterclockwise rotation of the second synchronous pulley 411 will not drive the rotating shaft 416 to rotate counterclockwise. At this time, even during the hull bumping process, the screw rod 53 will not rotate, further preventing the accidental rotation of the screw rod 53. The positioning plate 56 remains stably fixed, so that the placing plate 3 and the natural gas storage tank will not move up and down, ensuring the stable fixation of the natural gas storage tank. When the bolt 414 is rotated to drive the clamping block 413 to move so that the clamping block 413 presses against the rotating shaft 416, the counterclockwise rotation of the second synchronous pulley 411 will drive the rotating shaft 416 to rotate. When the placing plate 3 moves upward, please refer to Figure 8 , the placing plate 3 drives the connecting member 44 to rise. Under the driving action of the synchronous belt 43, the second synchronous pulley 411 rotates counterclockwise, the rotating shaft 416 drives the screw rod 53 to reverse and reset, and drives the positioning plate 56 to reset, facilitating the subsequent removal of the natural gas storage tank.

[0043] In the embodiment of the present invention, in order to strengthen the fixation of the natural gas storage tank, specifically, the strengthening fixation component 6 includes a fixing member 61. The fixing member 61 is fixedly connected to the outer wall of the positioning plate 56. The fixing member 61 is penetrated by a limiting guide rod 62 and is slidably connected to the limiting guide rod 62. One end of the limiting guide rod 62 away from the fixing member 61 is fixedly connected to a rectangular plate 63. A rotating wheel 64 is abutted against the outer wall of the rectangular plate 63. The rotating wheel 64 is rotatably connected to a first swing rod 65. The first swing rod 65 is hinged to a second swing rod 66. One end of the second swing rod 66 away from the first swing rod 65 is rotatably connected to a pressing wheel 68. The first swing rod 65 and the second swing rod 66 are connected by an adjusting telescopic rod 69. The rectangular plate 63 and the fixing member 61 are elastically connected by a return spring. A positioning shaft 67 is fixedly connected to the outer wall of the positioning plate 56. Both the first swing rod 65 and the second swing rod 66 are rotatably connected to the positioning shaft 67. The second swing rod 66 and the positioning shaft 67 are elastically connected by a torsion spring. The two ends of the adjusting telescopic rod 69 are respectively hinged to the first swing rod 65 and the second swing rod 66. When the positioning plate 56 completes the preliminary positioning of the storage tank, during this process, the rectangular plate 63 is pushed by the outer wall of the tank to squeeze the rotating wheel 64, driving the first swing rod 65 and the second swing rod 66 to move, so that the pressing wheel 68 automatically fits the surface of the storage tank and applies pressure, enhancing the fixing effect. At the same time, the adjusting telescopic rod 69 can flexibly change the angle between the first swing rod 65 and the second swing rod 66 to adapt to natural gas storage tanks of different thicknesses. The settings of the return spring and the torsion spring facilitate the subsequent reset of the rectangular plate 63 and the pressing wheel 68.

[0044] During use, first hoist the natural gas storage tank, and then slowly place the natural gas storage tank on the placement plate 3. The placement plate 3 descends under the gravity of the natural gas storage tank. During this process, the connecting piece 44 is driven to descend, and then the synchronous belt 43 is driven to move, causing the first synchronous pulley 42 and the second synchronous pulley 411 to rotate. Please refer to Figure 8 , the second synchronous pulley 411 rotates clockwise. Since the elastic ratchet rod 415 is limited by the ratchet teeth 412, the rotating shaft 416 rotates, and then the screw rod 53 rotates, driving the moving block 54 to slide in the groove 52, and then driving the positioning plate 56 to automatically position the outer wall of the natural gas storage tank, realizing the fixation of the natural gas storage tank;

[0045] At the same time, during the process of fixing the natural gas storage tank, the clamping block 413 moves away from the rotating shaft 416. At this time, during the hull bumping process, the screw rod 53 will not rotate, further avoiding the accidental rotation of the screw rod 53, and the positioning plate 56 remains stably fixed, so that the placement plate 3 and the natural gas storage tank will not move up and down;

[0046] At the same time, when the positioning plate 56 completes the preliminary positioning of the storage tank, during this process, the rectangular plate 63 is pushed by the outer wall of the tank to drive the rotating wheel 64, driving the first swing rod 65 and the second swing rod 66 to move, so that the pressing wheel 68 automatically fits the surface of the storage tank and applies pressure, strengthening the fixation of the natural gas storage tank. At the same time, the adjustable telescopic rod 69 can flexibly change the angles of the first swing rod 65 and the second swing rod 66 to adapt to natural gas storage tanks of different thicknesses.

[0047] At the same time, when the rotating bolt 414 drives the clamping block 413 to move and the clamping block 413 presses against the rotating shaft 416, the second synchronous pulley 411 needs to rotate counterclockwise to drive the rotating shaft 416 to rotate, so that when the placement plate 3 moves upward, please refer to Figure 8 , the placement plate 3 drives the connecting piece 44 to rise. Under the driving action of the synchronous belt 43, the second synchronous pulley 411 rotates counterclockwise, and the rotating shaft 416 drives the screw rod 53 to reverse and reset, driving the positioning plate 56 to reset, facilitating the subsequent removal of the natural gas storage tank.

[0048] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A marine protection device for liquefied natural gas storage, comprising a fixed seat (1), a support member (2) and a placement plate (3), wherein the fixed seat (1) is fixedly installed on the hull by embedded screws, and is characterized in that: A fixing mechanism (5) for fixing a natural gas storage tank is provided on the fixing base (1). The placing plate (3) is linked with the fixing mechanism (5) through a transmission assembly (4). The transmission assembly (4) includes a driven assembly (41), a first synchronous pulley (42), a synchronous belt (43) and a connecting member (44). The synchronous belt (43) is in transmission with the first synchronous pulley (42). The connecting member (44) is fixed to the synchronous belt (43), and one end of the connecting member (44) away from the synchronous belt (43) is fixed to the placing plate (3). The driven assembly (41) includes a second synchronous pulley (411). A ratchet tooth (412) is fixedly connected to the inner wall of the second synchronous pulley (411). A clamping block (413) is slidably connected to the inner wall of the second synchronous pulley (411). The clamping block (413) is rotatably connected to a bolt (414). The bolt (414) is threadedly connected to the second synchronous pulley (411). The second synchronous pulley (411) is penetrated by a rotating shaft (416) and is rotatably connected to the rotating shaft (416). An elastic ratchet rod (415) is fixedly connected to the outer wall of the rotating shaft (416), and the elastic ratchet rod (415) is engaged with the ratchet tooth (412). A strengthening fixing assembly (6) is provided on the fixing mechanism (5). The fixing mechanism (5) includes: A mounting seat (51), the mounting seat (51) is fixedly connected to the fixing base (1), a groove (52) is formed in the mounting seat (51), and a screw rod (53) is rotatably connected in the groove (52); A moving block (54), the moving block (54) is threadedly connected to the screw rod (53), and the moving block (54) is slidably connected in the groove (52); A connecting rod (55), one end of the connecting rod (55) is fixedly connected to the moving block (54), and the other end of the connecting rod (55) is fixed to a positioning plate (56). Among them, one side of the positioning plate (56) close to the connecting rod (55) is in an inclined state, the side of the positioning plate (56) away from the connecting rod (55) is in a vertical state, and the crossbar part of the connecting rod (55) is perpendicular to the inclined surface of the positioning plate (56).

2. The marine protection device for liquefied natural gas storage according to claim 1, characterized in that: The rotating shaft (416) is fixed to the screw rod (53), and a through hole (4101) matching the rotating shaft (416) is formed in the second synchronous pulley (411).

3. The marine protection device for liquefied natural gas storage according to claim 2, characterized in that: Both the first synchronous pulley (42) and the second synchronous pulley (411) are rotatably connected to the outer wall of the mounting seat (51).

4. The marine protection device for liquefied natural gas storage according to claim 3, characterized in that: During the up and down movement of the placing plate (3), the connecting member (44) drives the synchronous belt (43) to move, thereby driving the first synchronous pulley (42) and the second synchronous pulley (411) to rotate, and the screw rod (53) rotates to adjust the position of the positioning plate (56).

5. The marine protection device for liquefied natural gas storage according to claim 1, characterized in that: The strengthening and fixing component (6) includes a fixing member (61), the fixing member (61) is fixedly connected to the outer wall of the positioning plate (56), the fixing member (61) is penetrated by a limit guiding rod (62) and is slidably connected to the limit guiding rod (62). One end of the limit guiding rod (62) away from the fixing member (61) is fixedly connected with a rectangular plate (63). The outer wall of the rectangular plate (63) abuts against a rotating wheel (64). The rotating wheel (64) is rotatably connected to a first swing rod (65). The first swing rod (65) is hinged to a second swing rod (66). One end of the second swing rod (66) away from the first swing rod (65) is rotatably connected to a pressing wheel (68). The first swing rod (65) and the second swing rod (66) are connected by an adjusting telescopic rod (69).

6. The marine protection device for liquefied natural gas storage according to claim 5, characterized in that: The rectangular plate (63) and the fixing member (61) are elastically connected by a return spring. A positioning shaft (67) is fixedly connected to the outer wall of the positioning plate (56). Both the first swing rod (65) and the second swing rod (66) are rotatably connected to the positioning shaft (67). The second swing rod (66) and the positioning shaft (67) are elastically connected by a torsion spring.

7. A marine protection device for liquefied natural gas storage according to claim 5, characterized in that: Both ends of the adjusting telescopic rod (69) are respectively hinged to the first swing rod (65) and the second swing rod (66).

8. The marine protection device for liquefied natural gas storage according to claim 1, characterized in that: The support member (2) is composed of a damper and a support spring. Both ends of the support member (2) are respectively fixed to the fixed seat (1) and the placing plate (3).

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