Ice block impact resisting structure for icebreaker

Abstract

The invention discloses an ice block impact resistance structure for an icebreaker, and relates to the field of ship protection.The ice block impact resistance structure comprises a ship body, a mounting frame is mounted at the front end of the ship body, an anti-collision icebreaking assembly is arranged at the bottom of the mounting frame, and the anti-collision icebreaking assembly comprises a mounting seat. The ice breaking capacity of the icebreaker is improved, power collected by the elastic buffering assembly is converted and transmitted to the driving assembly through the linkage assembly, ice stirring plates and stirring rods on the left side and the right side are driven to be lifted upwards and inserted into a broken ice layer, and meanwhile through cooperation between an arc-shaped rail and a movable rod, the ice breaking capacity of the icebreaker is improved. The ice stirring plates and the stirring rods on the left side and the right side are synchronously driven to stir the broken ice layer to the two sides at the bottom of the ice layer, friction generated between the surface of the ship body and the broken face of the ice layer is reduced, and protectiveness of the front end of the ship body is enhanced.

Description

Technical Field

[0001] The invention relates to a ship protection device, in particular to an ice impact resistance structure for an icebreaker. Background Art

[0002] An icebreaker is a service vessel used to break ice on the surface, open waterways, and ensure access to frozen ports and anchorages, or guide ships through ice-covered areas. Its key features include a short, wide hull with a small aspect ratio, a bottom that curves forward and aft, a tapered, forward-leaning stem, high overall strength, and thick steel plates and dense ribs reinforced at the bow, stern, and waterline. Its propulsion system typically utilizes a dual-shaft or multi-propeller configuration, powered by a diesel engine, with protected and reinforced propellers and rudders.

[0003] Icebreakers are used to break up ice in high-latitude waters or when the sea surface freezes due to severe temperature drops, storm surges, and other weather conditions. Icebreakers are service vessels used to break up ice on the water surface, open up waterways, and ensure the entry and exit of ships into frozen ports and anchorages, or guide ships through iced areas. They are categorized as river, lake, harbor, or ocean icebreakers. However, existing icebreakers have the following problems when in use: The icebreaker then has to travel on the broken ice and on the sea surface. If the broken ice is not cut open, it will not only scratch the surface of the bow, causing damage over time, but also create greater resistance to the icebreaker's travel, increasing the energy consumption of the icebreaker.

[0004] In order to solve the above problems, we propose an ice-resistant impact structure for icebreakers to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an anti-ice impact structure for icebreakers to solve the problem that the existing icebreakers proposed in the above background technology are prone to damage to the bow, and also produce greater resistance to the movement of the icebreakers, thereby increasing the energy consumption of the icebreakers. The technical solution of the present invention addresses the technical problem that the existing technical solutions are too single and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an anti-ice impact structure for an icebreaker, comprising a hull, a mounting frame installed at the front end of the hull, an anti-collision icebreaking assembly provided at the bottom of the mounting frame, the anti-collision icebreaking assembly comprising a mounting seat, an inner wall of the mounting seat is provided with an arc-shaped groove, an inner wall of the arc-shaped groove is provided with a first rotating shaft, an outer surface of the first rotating shaft is sleeved with an anti-collision roller, an arc-shaped oil cylinder is installed inside the mounting seat, an arc-shaped piston rod is installed on the inner wall of the arc-shaped oil cylinder, a second oil cylinder is further installed inside the mounting seat, and a piston icebreaking rod is installed on the inner wall of the second oil cylinder; A plurality of elastic buffer components are installed on one side of the interior of the hull, and the plurality of elastic buffer components are used to buffer the impact of ice on the hull; The elastic buffer assembly includes an oil tank, which is installed on one side of the interior of the hull. A first telescopic rod is installed on the bottom inner wall of the oil tank. A strong spring is sleeved on the outer surface of the first telescopic rod. A first piston disc is installed on the end of the strong spring. A first pin is installed on one end of the first piston disc. A connecting rod is installed on one side of the first pin. A rotating seat is installed on the end of the connecting rod, and a push rod is installed on the end of the rotating seat. A linkage assembly is installed on one side of the inner wall of the hull, and the linkage assembly is used to connect the kinetic energy generated when the elastic buffer assembly is hit.

[0007] Preferably, a driving assembly is installed on one side of the interior of the hull, and an ice-clearing assembly is installed on one side of the driving assembly, and the driving assembly is used to drive the ice-clearing assembly, and the ice-clearing assembly is used to clear the ice layer destroyed by the hull; the number of the anti-collision ice-breaking assembly, linkage assembly, driving assembly and ice-clearing assembly is set to two groups, and they are symmetrically installed on the left and right sides of the front end of the hull.

[0008] Preferably, the linkage assembly includes a first oil cylinder, which is installed on the inner side of the hull, a second piston disc is installed on the inner wall of the first oil cylinder, a second pin is installed on one end of the second piston disc, a rack is installed on one side of the second pin, one side of the rack is meshed with a gear, a rotating rod is sleeved on the inner wall of the gear, a pulley group is installed on the top of the rotating rod, a threaded rod is installed on the bottom of the pulley group, a threaded sleeve is threaded on the outer side of the threaded rod, and a limiting rod is installed on the inner side of the hull.

[0009] Preferably, the second piston disc is rotatably connected to the rack via a second pin shaft, and the limiting rod is inserted into the inner wall of the threaded sleeve and is slidably connected to the threaded sleeve.

[0010] Preferably, the driving assembly includes a lifting rod, which is installed on one side of the threaded sleeve. An arc track is provided on the outer surface of the lifting rod. A movable sleeve is sleeved on the outer surface of the arc track. A movable rod is installed on the inner wall of the movable sleeve. An extension rod is installed on the right side of the lifting rod.

[0011] Preferably, the lifting rod can be slidably connected up and down on the inner wall of the movable sleeve, the movable sleeve is fixedly installed on one side of the inner side of the hull, and the movable rod is slidably connected to the inner wall of the arc track.

[0012] Preferably, the ice-scraping assembly includes an ice-scraping plate, which is installed at the end of the extension rod, a shift rod is installed on the top of the ice-scraping plate, a second rotating shaft is installed on one side of the ice-scraping plate, a second telescopic rod is installed on the end of the second rotating shaft, a third pin is installed on the other end of the second telescopic rod, and a fixed seat is installed on one side of the third pin.

[0013] Preferably, the number of the ice-shoveling assemblies is set to two groups, the ice-shoveling plate is rotatably connected to the second telescopic rod via a second rotating shaft, the fixing seat is installed on the bottom outer surface of the hull, and the top end of the shifting rod is set to an arc surface.

[0014] Preferably, the first rotating shaft is movably connected to the arc-shaped groove, the inner wall of the anti-collision roller is set to be solid, the arc-shaped oil cylinder is connected to one side of the second oil cylinder through a hard pipe, and the end of the piston ice-breaking rod is set to be conical.

[0015] Preferably, the first piston disc is rotatably connected to the connecting rod via a first pin shaft, and the end of the push rod is rotatably connected to the first rotating shaft.

[0016] Preferably, a plurality of groups of the elastic buffer components are arranged along an arc of equal proportion at the front end of the hull.

[0017] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, by providing multiple sets of elastic buffer components, when the hull hits the ice, the resistance of the oil in the elastic buffer components and the elastic force of the strong spring are used to form sufficient buffering force between the hull and the ice layer, and at the same time, the reaction force generated when the front end of the hull hits the ice layer at different angles is collected. The elastic buffer components are used to puncture the surface of the ice layer to form more holes, which is more conducive to breaking through thicker ice layers. While improving the icebreaker's resistance to ice impact, the icebreaker's icebreaking ability is also improved. In the present invention, the power collected by the elastic buffer assembly is converted and transmitted to the driving assembly through the linkage assembly, and the lifting rod of the driving assembly is lifted up, driving the ice-clearing plates and the levers on the left and right sides to lift up and insert into the broken ice layer. When the arc track on the surface passes the movable rod on the inner wall of the movable sleeve, the lower half of the middle bearing connected to the lifting rod and the extension rod will be prompted to rotate at a certain angle. At this time, the ice-clearing plates and the levers on the left and right sides will synchronously push the broken ice layer to both sides at the bottom of the ice layer, preventing friction between the hull surface and the broken surface of the ice layer, which will cause damage to the hull over time, while reducing the resistance of the icebreaker during travel and reducing the energy consumption of the icebreaker. Among them, when the hull retreats, the elastic force of the strong spring is used to push back the first piston disc, the first piston disc retreats the oil, and the first oil cylinder of the linkage assembly is retracted into the oil tank of all elastic buffer assemblies. At the same time, the ice-pushing plates and the shifting rods on both sides are retracted toward the middle, and the first piston disc of the oil tank of the elastic buffer assembly is retracted. The first piston disc pushes the first rotating shaft and the anti-collision roller back to the initial position through the first pin shaft, the connecting rod, the rotating seat and the push rod to prepare for the next ice breaking. The first rotating shaft pulls back the arc oil cylinder and the arc piston rod, so that the piston ice-breaking rod in the second oil cylinder retreats to the initial position, and prepares for the next ice breaking. It has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the hull structure of the present invention; Figure 2 This is a schematic structural diagram of the anti-collision and ice-breaking assembly of the present invention; Figure 3 This is a schematic structural diagram of the elastic buffer assembly of the present invention; Figure 4 Schematic diagram of the structure of the hull and anti-collision rollers of the present invention; Figure 5 This is a schematic structural diagram of the linkage assembly, drive assembly and ice-squeezing assembly of the present invention; Figure 6 For the present invention Figure 5 A magnified view of center.

[0019] In the figure: 1. Hull; 10. Mounting frame; 2. Anti-collision and ice-breaking assembly; 20. Mounting seat; 21. Arc-shaped channel; 22. First rotating shaft; 23. Anti-collision roller; 24. Arc-shaped oil cylinder; 25. Arc-shaped piston rod; 26. Second oil cylinder; 27. Piston ice-breaking rod; 3. Elastic buffer assembly; 30. Oil tank; 31. First telescopic rod; 32. Strong spring; 33. First piston disc; 34. First pin; 35. Connecting rod; 36. Rotating seat; 37. Push rod; 4. Linkage assembly; 40 , first oil cylinder; 41, second piston disc; 42, second pin; 43, rack; 44, gear; 45, rotating rod; 46, pulley assembly; 47, threaded rod; 48, threaded sleeve; 49, limit rod; 5, drive assembly; 50, lifting rod; 51, arc track; 52, movable sleeve; 53, movable rod; 54, extension rod; 6, ice-ploughing assembly; 60, ice-ploughing plate; 61, paddle; 62, second rotating shaft; 63, second telescopic rod; 64, third pin; 65, fixed seat. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1 - Figure 6 As shown, the present invention provides an anti-ice impact structure for an icebreaker, comprising a hull 1, a mounting frame 10 is installed at the front end of the hull 1, an anti-collision icebreaking assembly 2 is provided at the bottom of the mounting frame 10, the anti-collision icebreaking assembly 2 includes a mounting seat 20, an inner wall of the mounting seat 20 is provided with an arc-shaped groove 21, an inner wall of the arc-shaped groove 21 is provided with a first rotating shaft 22, an outer surface of the first rotating shaft 22 is sleeved with an anti-collision roller 23, an arc-shaped oil cylinder 24 is installed inside the mounting seat 20, an arc-shaped piston rod 25 is installed on the inner wall of the arc-shaped oil cylinder 24, a second oil cylinder 26 is further installed inside the mounting seat 20, and a piston icebreaking rod 27 is installed on the inner wall of the second oil cylinder 26; A plurality of elastic buffer components 3 are installed on one side of the interior of the hull 1, and the plurality of elastic buffer components 3 are used to buffer the impact of ice on the hull 1; The elastic buffer assembly 3 includes an oil tank 30, which is installed on one side of the interior of the hull 1. A first telescopic rod 31 is installed on the bottom inner wall of the oil tank 30. A strong spring 32 is sleeved on the outer surface of the first telescopic rod 31. A first piston disc 33 is installed on the end of the strong spring 32. A first pin 34 is installed on one end of the first piston disc 33. A connecting rod 35 is installed on one side of the first pin 34. A rotating seat 36 is installed on the end of the connecting rod 35. A push rod 37 is installed on the end of the rotating seat 36. A linkage assembly 4 is installed on one side of the inner wall of the hull 1, and the linkage assembly 4 is used to connect the kinetic energy generated when the elastic buffer assembly 3 is hit; Among them, the linkage assembly 4 includes a first oil cylinder 40, which is installed on the inner side of the hull 1, a second piston disc 41 is installed on the inner wall of the first oil cylinder 40, a second pin shaft 42 is installed on one end of the second piston disc 41, a rack 43 is installed on one side of the second pin shaft 42, a gear 44 is meshed and connected to one side of the rack 43, a rotating rod 45 is sleeved on the inner wall of the gear 44, a pulley group 46 is installed on the top of the rotating rod 45, a threaded rod 47 is installed on the bottom of the pulley group 46, and a threaded sleeve 48 is threadedly connected to the outer side of the threaded rod 47, and a limiting rod 49 is installed on the inner side of the hull 1.

[0022] The second piston disc 41 is rotatably connected to the rack 43 via the second pin shaft 42 , and the limiting rod 49 is inserted into the inner wall of the threaded sleeve 48 and is slidably connected to the threaded sleeve 48 .

[0023] A driving assembly 5 is installed on one side of the interior of the hull 1, and an ice-clearing assembly 6 is installed on one side of the driving assembly 5. The driving assembly 5 is used to drive the ice-clearing assembly 6, and the ice-clearing assembly 6 is used to clear the ice layer destroyed by the hull 1; the number of anti-collision ice-breaking assemblies 2, linkage assemblies 4, driving assemblies 5 and ice-clearing assemblies 6 are all set to two groups, and are symmetrically installed on the left and right sides of the front end of the hull 1.

[0024] Among them, the driving component 5 includes a lifting rod 50, which is installed on one side of the threaded sleeve 48. An arc track 51 is provided on the outer surface of the lifting rod 50, and a movable sleeve 52 is sleeved on the outer surface of the arc track 51. A movable rod 53 is installed on the inner wall of the movable sleeve 52, and an extension rod 54 is installed on the right side of the lifting rod 50.

[0025] In some examples, the lifting rod 50 can be slidably connected up and down on the inner wall of the movable sleeve 52 , the movable sleeve 52 is fixedly installed on one side of the inner side of the hull 1 , and the movable rod 53 is slidably connected to the inner wall of the arc track 51 .

[0026] The ice-squeezing assembly 6 includes an ice-squeezing plate 60, which is installed at the end of the extension rod 54. A sliding rod 61 is installed on the top of the ice-squeezing plate 60. A second rotating shaft 62 is installed on one side of the ice-squeezing plate 60. A second telescopic rod 63 is installed on the end of the second rotating shaft 62. A third pin 64 is installed on the other end of the second telescopic rod 63. A fixing seat 65 is installed on one side of the third pin 64.

[0027] In some examples, the number of ice-shoveling assemblies 6 is set to two groups, the ice-shoveling plate 60 is rotatably connected to the second telescopic rod 63 through the second rotating shaft 62, the fixing seat 65 is installed on the bottom outer surface of the hull 1, and the top of the push rod 61 is set to an arc surface.

[0028] In some examples, the first rotating shaft 22 is movably connected to the arc groove 21, the inner wall of the anti-collision roller 23 is set to be solid, the arc oil cylinder 24 is connected to one side of the second oil cylinder 26 through a hard pipe, and the end of the piston ice-breaking rod 27 is set to be conical.

[0029] In some examples, the first piston disc 33 is rotatably connected to the connecting rod 35 via the first pin 34 , and the end of the push rod 37 is rotatably connected to the first rotating shaft 22 .

[0030] In some examples, multiple groups of elastic buffer components 3 are arranged along an equiproportional arc at the front end of the hull 1.

[0031] In some examples, the anti-collision roller 23 is made of manganese steel to improve the anti-collision effect of the anti-collision roller 23 .

[0032] Working principle: When the hull 1 collides with a thicker layer of ice, the anti-collision roller 23 will first collide with the ice and be subjected to the lateral impact force of the hull 1. When the thicker layer of ice is not knocked away, the hull 1 will be hit by the anti-collision roller 23 and roll, so that the front end of the hull 1 directly "straddles" the ice layer and crushes the ice layer with its own gravity. While being hit, the anti-collision roller 23 will also shrink inward. At this time, the first rotating shaft 22 slides and rotates in the arc-shaped groove 21, and the arc-shaped oil cylinder is squeezed by pressing the arc-shaped piston rod 25. The oil in 24 is squeezed out into the second oil cylinder 26. After the second oil cylinder 26 is impacted by the oil, the piston ice-breaking rod 27 is pushed out. The tapered part at the end of the piston ice-breaking rod 27 punctures the surface of the thicker ice layer to form holes, thereby reducing the hardness of the thicker ice layer, so that the hull 1 can quickly break through the ice layer, or use its own gravity to break the ice layer. Since the bottom of the hull 1 is also provided with an ice-clearing component 6 to resist the bottom of the ice layer, there is no need to worry that the hull 1 will directly ride on the ice surface and cause damage to the hull 1; When the anti-collision roller 23 is hit, the first rotating shaft 22 not only moves in the arc groove 21, but also pushes the push rod 37 through the first rotating shaft 22. At this time, the push rod 37 will move in the direction of the elastic buffer component 3, jacking up the first piston disc 33, compressing the first telescopic rod 31 and the strong spring 32, squeezing the strong spring 32 while squeezing the oil in the oil tank 30, and squeezing all the oil in the oil tank 30 of the elastic buffer component 3 into the first oil cylinder 40 of the linkage component 4 through the pipeline. In this process, the resistance of the oil and the elastic force of the strong spring 32 are used to buffer the kinetic energy generated by the head-on impact of the ice layer, thereby reducing the impact kinetic energy received by the front end of the hull 1; At the same time, the second piston disc 41 on the inner wall of the first oil cylinder 40 is thrust, which lifts the second pin 42, and the second pin 42 drives the rack 43 to move, and then the rack 43 drives the meshing gear 44 to rotate, and the gear 44 drives the pulley set 46 to rotate by driving the rotating rod 45, and then the pulley set 46 drives the threaded rod 47 to rotate, and then the threaded sleeve 48 is limited by the limiting rod 49 under the action of the rotation of the threaded rod 47, and the threaded sleeve 48 moves upward on the surface of the limiting rod 49, driving the lifting rod 50 to move upward, and the lifting rod 50 rises upward, driving the ice-clearing plates 60 and the shifting rods 61 on the left and right sides to rise and insert into the broken ice layer. When the arc track 51 on the surface of the lifting rod 50 passes the movable rod 53 on the inner wall of the movable sleeve 52, it will cause the lower half of the lifting rod 50 connected by the middle bearing and the extension rod 54 to rotate at a certain angle. At this time, the ice-clearing plates 60 and the shifting rods 61 on the left and right sides will push the broken ice layer to the sides at the bottom of the ice layer, preventing the surface of the hull 1 from rubbing against the broken surface of the ice layer, which may cause damage to the hull 1 over time. When the hull 1 retreats, the elastic force of the strong spring 32 pushes the first piston disc 33 back, and the first piston disc 33 retreats the oil, retracting the first oil cylinder 40 of the linkage assembly 4 into the oil tank 30 of all elastic buffer assemblies 3. At the same time, the ice-clearing plates 60 and the deflector rod 61 on both sides are retracted toward the middle, and the first piston disc 33 of the oil tank 30 of the elastic buffer assembly 3 is retreated. The first piston disc 33 pushes the first rotating shaft 22 and the anti-collision roller 23 back to the initial position through the first pin shaft 34, the connecting rod 35, the rotating seat 36 and the push rod 37, preparing for the next ice breaking. At the same time, the first rotating shaft 22 pulls back the arc oil cylinder 24 and the arc piston rod 25, so that the piston ice-breaking rod 27 in the second oil cylinder 26 retreats to the initial position, preparing for the next ice breaking.

[0033] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An ice impact resistance structure for an icebreaker, characterized by: The invention comprises a hull (1), a mounting frame (10) is installed at the front end of the hull (1), an anti-collision ice-breaking component (2) is provided at the bottom of the mounting frame (10), the anti-collision ice-breaking component (2) comprises a mounting seat (20), an inner wall of the mounting seat (20) is provided with an arc-shaped groove (21), an inner wall of the arc-shaped groove (21) is provided with a first rotating shaft (22), an outer surface of the first rotating shaft (22) is sleeved with an anti-collision roller (23), an arc-shaped oil cylinder (24) is installed inside the mounting seat (20), an arc-shaped piston rod (25) is installed on the inner wall of the arc-shaped oil cylinder (24), a second oil cylinder (26) is also installed inside the mounting seat (20), and a piston ice-breaking rod (27) is installed on the inner wall of the second oil cylinder (26); A plurality of sets of elastic buffer components (3) are installed on one side of the interior of the hull (1), and the plurality of sets of elastic buffer components (3) are used to buffer ice impacts on the hull (1); The elastic buffer assembly (3) includes an oil tank (30), the oil tank (30) is installed on one side of the interior of the hull (1), a first telescopic rod (31) is installed on the bottom inner wall of the oil tank (30), a strong spring (32) is sleeved on the outer surface of the first telescopic rod (31), a first piston disc (33) is installed on the end of the strong spring (32), a first pin (34) is installed on one end of the first piston disc (33), a connecting rod (35) is installed on one side of the first pin (34), a rotating seat (36) is installed on the end of the connecting rod (35), and a push rod (37) is installed on the end of the rotating seat (36); A linkage assembly (4) is installed on one side of the inner wall of the hull (1), and the linkage assembly (4) is used to connect the kinetic energy generated when the elastic buffer assembly (3) is hit; A driving assembly (5) is installed on one side of the interior of the hull (1), and an ice-pushing assembly (6) is installed on one side of the driving assembly (5). The driving assembly (5) is used to drive the ice-pushing assembly (6), and the ice-pushing assembly (6) is used to push away the ice layer damaged by the hull (1); The anti-collision ice-breaking assembly (2), linkage assembly (4), drive assembly (5) and ice-shoveling assembly (6) are all arranged in two groups, and are symmetrically mounted on the left and right sides of the front end of the hull (1).

2. The ice impact resistance structure for an icebreaker according to claim 1, characterized in that: The linkage assembly (4) includes a first oil cylinder (40), the first oil cylinder (40) is installed on the inner side of the hull (1), a second piston disc (41) is installed on the inner wall of the first oil cylinder (40), a second pin shaft (42) is installed on one end of the second piston disc (41), a rack (43) is installed on one side of the second pin shaft (42), one side of the rack (43) is meshedly connected with a gear (44), a rotating rod (45) is sleeved on the inner wall of the gear (44), a pulley group (46) is installed on the top of the rotating rod (45), a threaded rod (47) is installed on the bottom of the pulley group (46), the outer edge of the threaded rod (47) is threadedly connected to a threaded sleeve (48), and a limiting rod (49) is installed on the inner side of the hull (1).

3. The ice impact resistance structure for an icebreaker according to claim 2, characterized in that: The second piston disc (41) is rotatably connected to the rack (43) via a second pin shaft (42), and the limiting rod (49) is inserted into the inner wall of the threaded sleeve (48) and is slidably connected to the threaded sleeve (48).

4. The ice impact resistance structure for an icebreaker according to claim 3, characterized in that: The driving assembly (5) includes a lifting rod (50), the lifting rod (50) is installed on one side of the threaded sleeve (48), the outer surface of the lifting rod (50) is provided with an arc track (51), the outer surface of the arc track (51) is sleeved with a movable sleeve (52), the inner wall of the movable sleeve (52) is installed with a movable rod (53), and the right side of the lifting rod (50) is installed with an extension rod (54).

5. The ice impact resistance structure for an icebreaker according to claim 4, characterized in that: The lifting rod (50) can be slidably connected to the inner wall of the movable sleeve (52) up and down. The movable sleeve (52) is fixedly installed on one side of the inner part of the hull (1). The movable rod (53) is slidably connected to the inner wall of the arc track (51).

6. The ice impact resistance structure for an icebreaker according to claim 5, characterized in that: The ice-squeezing assembly (6) includes an ice-squeezing plate (60), the ice-squeezing plate (60) is mounted on the end of the extension rod (54), a deflecting rod (61) is mounted on the top of the ice-squeezing plate (60), a second rotating shaft (62) is mounted on one side of the ice-squeezing plate (60), a second telescopic rod (63) is mounted on the end of the second rotating shaft (62), a third pin (64) is mounted on the other end of the second telescopic rod (63), and a fixing seat (65) is mounted on one side of the third pin (64).

7. The ice impact resistance structure for an icebreaker according to claim 6, characterized in that: The number of the ice-shoveling assemblies (6) is set to two groups, the ice-shoveling plate (60) is rotatably connected to the second telescopic rod (63) via a second rotating shaft (62), the fixing seat (65) is installed on the bottom outer surface of the hull (1), and the top end of the shifting rod (61) is set to be an arc surface.

8. The ice impact resistance structure for an icebreaker according to claim 7, characterized in that: The first rotating shaft (22) is movably connected to the arc-shaped groove (21), the inner wall of the anti-collision roller (23) is set to be solid, the arc-shaped oil cylinder (24) is connected to one side of the second oil cylinder (26) through a hard pipe, and the end of the piston ice-breaking rod (27) is set to be conical.

9. The ice impact resistance structure for an icebreaker according to claim 8, characterized in that: The first piston disc (33) is rotatably connected to the connecting rod (35) via a first pin shaft (34), and the end of the push rod (37) is rotatably connected to the first rotating shaft (22).

10. The ice impact resistance structure for an icebreaker according to claim 9, characterized in that: A plurality of groups of elastic buffer components (3) are arranged along an arc of equal proportions at the front end of the hull (1).

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