Vertical pressure cylinder deep-sea collision test device and its use method

Abstract

The present invention relates to a deep-sea collision test device in a vertical pressure cylinder and a method for using the device, comprising a vertically arranged pressure cylinder, a support frame supported on a support plate at a lower portion of the pressure cylinder, a test model fixedly mounted on the support plate located inside the support frame via a fixing seat, a pressure-resistant electromagnetic suction component installed on the inner top surface of the support frame directly above the test model, and when the pressure-resistant electromagnetic suction component is energized, a magnetic force is generated to adsorb a heavy ball at the center of the bottom surface, and when the pressure-resistant electromagnetic suction component is de-energized, the magnetic force disappears and the heavy ball falls freely; a safety rope is connected between the heavy ball and the inner top surface of the support frame, thereby realizing a deep-sea collision test in the vertical pressure cylinder through a power-off separation function, and being able to simulate collision tests of different load sizes by adjusting the height and mass of the heavy ball, which greatly contributes to the study of the structural response of underwater engineering structures under the action of heavy ball collision.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure collision testing, in particular to a vertical pressure cylinder deep-sea collision testing device and a method for using the same. Background Art

[0002] Due to the harsh ocean environment, underwater collisions between vehicles occur frequently. Compared to surface ships, underwater vehicles have less reserve buoyancy. When they encounter an underwater collision, the combined effects of deepwater pressure and impact loads are more likely to cause structural damage, threatening the lives of crew members and potentially leading to secondary disasters.

[0003] In the existing technology, due to the limitations of test facilities and test costs, the research on structural collision problems in deep-sea high-pressure environments mainly relies on numerical simulation methods. The research progress found in the literature has stopped at software simulation and lacks the necessary experimental research and verification.

[0004] Major research institutions have built a variety of deep-sea environment simulation devices, or pressure cylinders, in various sizes and types. Pressure cylinders are categorized as vertical or horizontal based on their installation layout, but their primary testing scope is hydrostatic pressure testing. Summary of the Invention

[0005] In response to the shortcomings of the above-mentioned existing production technology, the applicant provides a rationally structured deep-sea collision test device in a vertical pressure cylinder and a method of use thereof, thereby realizing deep-sea collision tests in a vertical pressure cylinder and being able to simulate collision tests of different load sizes, effectively expanding the test range of the pressure cylinder, and greatly contributing to the study of the structural response of underwater engineering structures under the action of heavy ball collisions.

[0006] The technical solutions adopted in the present invention are as follows:

[0007] A deep-sea collision test device in a vertical pressure cylinder comprises a vertically arranged pressure cylinder, a support frame is supported on a support plate at the lower interior of the pressure cylinder, a test model is fixedly mounted on the support plate located on the inner side of the support frame via a fixed seat, a pressure-resistant electromagnetic suction component is installed on the inner top surface of the support frame directly above the test model, when the pressure-resistant electromagnetic suction component is energized, a magnetic force is generated to attract a heavy ball at the center of the bottom surface, and when the pressure-resistant electromagnetic suction component loses power, the magnetic force disappears and the heavy ball falls freely; a safety rope is connected between the heavy ball and the inner top surface of the support frame.

[0008] As a further improvement of the above technical solution:

[0009] The structure of the support frame is as follows: it includes a plurality of columns arranged in parallel along the circumferential interval, a plurality of annular frames are installed on the plurality of columns at intervals along the length direction, a crossbeam is installed in the diameter direction of the uppermost annular frame, and the pressure-resistant electromagnetic suction component is installed on the crossbeam; a plurality of limit assemblies are installed on one or more of the annular frames along the circumferential interval, and the outer end of a single limit assembly is against the inner wall surface of the pressure cylinder.

[0010] The crossbeam is provided with a plurality of hanging holes along the length direction, wherein a pressure-resistant electromagnetic suction component is hung at one of the hanging holes via a hand hoist, one end of the safety rope is fixed at another hanging hole, and a heavy ball is attached to the other end of the safety rope.

[0011] An upper hook is provided on the top of the hand chain hoist, and the upper hook is hung in the corresponding hanging hole; a lower hook is provided on the bottom of the hand chain hoist, and a lifting ear extends upward from the top of the pressure-resistant electromagnetic suction component, and a hanging cable is passed through each lifting ear and wrapped around it, and the hanging cable is hung on the lower hook above.

[0012] The annular frame is arranged concentrically relative to the pressure cylinder, and the limiting components are installed on the annular frame at even intervals.

[0013] The structure of the limiting assembly is as follows: it includes a limiting seat that penetrates the annular frame inside and outside along the thickness direction, a screw rod that penetrates the limiting seat and is spirally installed, a force-applying part is fixedly provided at the end of the screw rod located on the inner side of the limiting seat, and a pressing part is fixedly provided at the end of the screw rod located on the outer side of the limiting seat, and the outer end of the pressing part is set to an outward convex arc surface structure, and the outward convex arc surface structure is against the inner wall surface of the pressure cylinder.

[0014] The columns are cylindrical structures, and the cross-section of the beam is a T-shaped structure; the columns located at the top of the test model are jointly surrounded by a protective net.

[0015] The structure of the pressure-resistant electromagnetic suction assembly is as follows: it includes a pressure-resistant tank body with an opening facing upward, an electromagnetic suction cup is accommodated inside the pressure-resistant tank body, and the electromagnetic suction cup is connected to a power supply via a cable. The electromagnetic suction cup generates magnetic force when it is energized and the magnetic force disappears when it is de-energized; the upper open end of the pressure-resistant tank body is sealed with a flange end cover via a flange structure to form a closed container, and a watertight joint for the cable to pass out is installed on the flange end cover; the flange edge of the flange end cover is fitted with the flange structure on the top of the pressure-resistant tank body and fixed to each other via fasteners, and a seal is pressed between the joint surface of the flange end cover and the pressure-resistant tank body, and the seal is arranged circumferentially around the opening of the pressure-resistant tank body.

[0016] A magnetic plate is fixedly installed on the bottom surface of the pressure-resistant tank body through a grid member, and a limit plate is installed on the bottom surface of the magnetic plate; a plurality of limit plates are arranged at intervals along the circumference, and the inner side surface of a single limit plate is set as a slope structure. The inner sides of multiple limit plates together constitute a conical structure with the opening facing downward, and the heavy ball is in contact with the inner side surface of the conical structure.

[0017] A method for using the vertical pressure cylinder deep-sea collision test device comprises the following steps:

[0018] Arrange the sensor assembly on the test model, fix the test model on the support plate in the pressure cylinder; install the pressure-resistant electromagnetic suction assembly on the support frame above the test model;

[0019] Lead the cables of the sensor assembly and the pressure-resistant electromagnetic suction assembly to the outside of the pressure cylinder and connect them to the strain gauge and power supply respectively;

[0020] Turn on the power, attach the heavy ball to the bottom of the pressure-resistant electromagnetic suction component, and install the safety rope simultaneously. The heavy ball should be located directly above the position where the test model is to be collided.

[0021] Install the cylinder cover of the pressure cylinder to seal it, and apply hydrostatic pressure until the hydrostatic pressure in the pressure cylinder reaches the target pressure;

[0022] Turn off the power switch, and as the magnetic force on the pressure-resistant electromagnetic suction component disappears, the heavy ball falls and hits the preset position of the test model below, causing the test model to respond to the impact structure. The sensor component measures the structural strain and deformation of the collision, completing the collision test in a high-pressure hydrostatic environment.

[0023] The beneficial effects of the present invention are as follows:

[0024] The present invention has a compact and reasonable structure and is easy to operate. Through the power-off separation function, it realizes deep-sea collision tests in a vertical pressure cylinder. It can also simulate collision tests with different load sizes by adjusting the height and mass of the heavy ball. This effectively expands the test items of the vertical pressure cylinder and greatly improves the test flexibility of the vertical pressure cylinder. It is greatly helpful for the study of the structural response of underwater engineering structures under the impact of heavy balls.

[0025] The present invention also includes the following advantages:

[0026] Under the condition of hydrostatic pressure, a heavy ball is attracted by the energized pressure-resistant electromagnetic suction assembly. After de-energization, the heavy ball falls freely and hits the test model below. This allows the structural response test of the pressure-resistant structure under the impact load under the effect of hydrostatic pressure to be carried out in the vertical pressure cylinder to study the strength and stability of the structure.

[0027] The support frame is pressed against the inner wall of the pressure cylinder via the limit assembly along the circumference of the annular frame, so that the position of the collision test device relative to the pressure cylinder is relatively fixed, effectively ensuring the smooth and smooth progress of the collision test and the reliability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the test state of the present invention.

[0029] Figure 2 It is a structural schematic diagram of the collision test device of the present invention.

[0030] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0031] Figure 4 It is a top view of the collision test device of the present invention (the pressure-resistant electromagnetic suction component and the heavy ball are omitted).

[0032] Figure 5 for Figure 4 A partial enlarged view of point B in the middle.

[0033] Figure 6 It is a structural schematic diagram of the pressure-resistant electromagnetic suction component of the present invention.

[0034] Figure 7 It is a schematic diagram of the assembly of the column and the protective net of the present invention.

[0035] Including: 1. Pressure cylinder; 2. Beam; 3. Pressure-resistant electromagnetic suction assembly; 4. Heavy ball; 5. Support frame; 6. Test model; 7. Sensor assembly; 8. Hand chain hoist; 9. Limit assembly;

[0036] 11. Power supply; 12. Support plate;

[0037] 21. Hanging hole;

[0038] 30. Ring rib; 31. Watertight joint; 32. Lifting lug; 33. Flange end cover; 34. Seal; 35. Pressure tank; 36. Electromagnetic suction cup; 37. Grille; 38. Magnetic plate; 39. Limit plate;

[0039] 41. Safety rope;

[0040] 50. Protective net; 51. Pillar; 52. Ring frame;

[0041] 61. Fixed seat;

[0042] 81. Upper hook; 82. Lower hook; 83. Cable hanging;

[0043] 91. Pressing portion; 92. Screw; 93. Limiting seat; 94. Force-applying portion; 941. Through hole. DETAILED DESCRIPTION

[0044] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0045] like Figure 1 and Figure 2As shown, the vertical pressure cylinder deep-sea collision test device of this embodiment includes a vertically arranged pressure cylinder 1, a support frame 5 is supported on the support plate 12 at the lower part of the interior of the pressure cylinder 1, a test model 6 is fixed on the support plate 12 located on the inner side of the support frame 5 via a fixing seat 61, and a pressure-resistant electromagnetic suction component 3 is installed on the inner top surface of the support frame 5 directly above the test model 6. When the pressure-resistant electromagnetic suction component 3 is energized, a magnetic force is generated to attract a heavy ball 4 at the center of the bottom surface. When the pressure-resistant electromagnetic suction component 3 is de-energized, the magnetic force disappears and the heavy ball 4 falls freely; a safety rope 41 is connected between the heavy ball 4 and the inner top surface of the support frame 5.

[0046] Through the power-off separation function of the pressure-resistant electromagnetic suction component 3, the deep-sea collision test in the vertical pressure cylinder is realized, and the height and mass of the heavy ball 4 can be adjusted to simulate collision tests with different load sizes, which effectively expands the test items of the vertical pressure cylinder and greatly improves the test flexibility of the vertical pressure cylinder.

[0047] When hydrostatic pressure is loaded, the heavy ball 4 is adsorbed by the pressure-resistant electromagnetic suction component 3 in the energized state. After the power is lost, the heavy ball 4 falls freely and hits the test model 6 below, thereby carrying out a structural response test of the pressure-resistant structure under the impact load under the effect of hydrostatic pressure in the vertical pressure cylinder to study the strength and stability of the structure.

[0048] like Figure 4 As shown, the structure of the support frame 5 is as follows: it includes a plurality of columns 51 arranged in parallel along the circumferential interval, a plurality of annular frames 52 are installed on the plurality of columns 51 at intervals along the length direction, a crossbeam 2 is installed in the diameter direction of the uppermost annular frame 52, and a pressure-resistant electromagnetic suction component 3 is installed on the crossbeam 2; a plurality of limit components 9 are installed on one or more of the annular frames 52 at intervals along the circumferential direction, and the outer end of a single limit component 9 is against the inner wall surface of the pressure cylinder 1.

[0049] The support frame 5 is pressed against the inner wall of the pressure cylinder 1 via the limiting assembly 9 along the circumference of the annular frame 52, so that the position of the collision test device relative to the pressure cylinder 1 is relatively fixed, effectively ensuring the smooth and smooth progress of the collision test and the reliability of the test.

[0050] like Figure 3 As shown, a plurality of hanging holes 21 are provided on the beam 2 along the length direction, wherein a pressure-resistant electromagnetic suction component 3 is hung at one of the hanging holes 21 via a hand hoist 8, one end of a safety rope 41 is fixed to another hanging hole 21, and a heavy ball 4 is tied to the other end of the safety rope 41. The setting of the safety rope 41 is to prevent the heavy ball 4 from falling and causing impact on the pressure cylinder 1.

[0051] In this embodiment, the positions of the pressure-resistant electromagnetic suction assembly 3 and the heavy ball 4 relative to the test model 6 are conveniently adjusted by providing a plurality of hanging holes 21 on the crossbeam 2 .

[0052] An upper hook 81 is provided on the top of the hand hoist 8, and the upper hook 81 is hung in the corresponding hanging hole 21; a lower hook 82 is provided at the bottom of the hand hoist 8, and a lifting ear 32 extends upward from the top of the pressure-resistant electromagnetic suction component 3, and a hanging cable 83 is passed through each lifting ear 32 and wrapped around it, and the hanging cable 83 is hung on the lower hook 82 above.

[0053] The setting of the hand hoist 8, on the one hand, facilitates the hanging and adjustment of the pressure-resistant electromagnetic suction component 3 relative to the upper beam 2 of the support frame 5, and on the other hand, it can also realize the rapid adjustment of the height of the pressure-resistant electromagnetic suction component 3, thereby adjusting the falling height of the heavy ball 4, which is convenient, reliable and practical to operate.

[0054] The hand chain hoist 8 in this embodiment is a standard product purchased from outside. It is a manual lifting machine that is simple to use and easy to carry. It is convenient for the rapid installation of the pressure-resistant electromagnetic suction component 3 on the support frame 5, as well as the rapid adjustment and relative fixation of its height.

[0055] The annular frame 52 is arranged concentrically relative to the pressure cylinder 1 , and the limiting components 9 are installed on the annular frame 52 at even intervals.

[0056] like Figure 5 As shown, the structure of the limiting assembly 9 is: it includes a limiting seat 93 that penetrates the annular frame 52 inward and outward along the thickness direction, a screw 92 that penetrates the limiting seat 93 and is spirally mounted, a force-applying portion 94 is fixedly provided at the end of the screw 92 located on the inner side of the limiting seat 93, and a pressing portion 91 is fixedly provided at the end of the screw 92 located on the outer side of the limiting seat 93, and the outer end of the pressing portion 91 is set as an outward convex arc surface structure, which is against the inner wall surface of the pressure cylinder 1.

[0057] Applying force to the force applying portion 94 causes the screw 92 to rotate relative to the limit seat 93, thereby adjusting the position of the screw 92 in the length direction relative to the limit seat 93 and adjusting the pressing state of the pressing portion 91 at the end of the screw 92 relative to the inner wall surface of the pressure cylinder 1.

[0058] In this embodiment, a through hole 941 can be opened on the force-applying part 94, and the through hole 941 is perpendicular to the length direction of the screw 92. An external tool passes through the through hole 941 on the force-applying part 94, and the screw 92 is driven to rotate by the external tool, thereby realizing the pressure adjustment of the limit assembly 9, which is easy to use.

[0059] The columns 51 are cylindrical structures, and the cross-section of the beam 2 is a T-shaped structure; the columns 51 at the top of the test model 6 are surrounded by a protective net 50, such as Figure 1 and Figure 7 As shown, the protection net 50 is provided to prevent the heavy ball 4 from impacting the side wall of the pressure cylinder 1 .

[0060] like Figure 6As shown, the structure of the pressure-resistant electromagnetic suction assembly 3 is as follows: it includes a pressure-resistant tank body 35 with an opening facing upward, and an electromagnetic suction cup 36 is accommodated inside the pressure-resistant tank body 35. The electromagnetic suction cup 36 is connected to the power supply 11 via a cable. The electromagnetic suction cup 36 generates magnetic force when it is energized and disappears when it is de-energized; the upper open end of the pressure-resistant tank body 35 is sealed with a flange end cover 33 via a flange structure to form a closed container, and a watertight joint 31 for the cable to pass out is installed on the flange end cover 33; the flange edge of the flange end cover 33 is in contact with the flange structure at the top of the pressure-resistant tank body 35 and is fixed to each other via fasteners, so that the pressure-resistant electromagnetic suction assembly 3 is easy to disassemble and maintain; a seal 34 is pressed between the joint surface of the flange end cover 33 and the pressure-resistant tank body 35, and the seal 34 is arranged circumferentially around the opening of the pressure-resistant tank body 35 to achieve a sealed fit between the two.

[0061] In this embodiment, the pressure-resistant tank body 35 is a cylindrical container with an opening facing upward. Annular ribs 30 are circumferentially arranged on the outer wall of the pressure-resistant tank body 35 . Multiple groups of the annular ribs 30 are spaced apart along the axial direction of the pressure-resistant tank body 35 .

[0062] A magnetic plate 38 is fixedly installed on the bottom surface of the pressure-resistant tank body 35 through a grid member 37, and a limit plate 39 is installed on the bottom surface of the magnetic plate 38. The grid member 37 can be a cross-shaped reinforcing rib structure for strengthening the overall structure; a plurality of limit plates 39 are arranged at intervals along the circumference, and the inner side surface of a single limit plate 39 is set as a slope structure. The inner sides of multiple limit plates 39 together constitute a conical structure with an opening facing downward, and the heavy ball 4 is in contact with the inner side surface of the conical structure; thereby, through the arrangement of multiple limit plates 39, the heavy ball 4 is jointly limited to the center position of the bottom surface of the pressure-resistant electromagnetic suction component 3, and the shaking of the heavy ball 4 is effectively prevented, thereby effectively ensuring the smooth progress of the test.

[0063] The pressure-resistant electromagnetic suction component 3 is reusable and durable, and can be quickly disassembled and assembled for maintenance, thus having good practicality.

[0064] The method for using the vertical pressure cylinder deep-sea collision test device of this embodiment includes the following steps:

[0065] Place the sensor assembly 7 on the test model 6, and secure the test model 6 to the support plate 12 inside the pressure cylinder 1. Install the pressure-resistant electromagnetic suction assembly 3 on the support frame 5 above the test model 6. Adjust the height of the pressure-resistant electromagnetic suction assembly 3 relative to the support frame 5 using the hand chain hoist 8 according to actual test requirements.

[0066] Lead the cables of the sensor assembly 7 and the pressure-resistant electromagnetic suction assembly 3 to the outside of the pressure cylinder 1 and connect them to the strain gauge and power supply 11 respectively;

[0067] Turn on the power supply 11, and adsorb the heavy ball 4 to the bottom surface of the pressure-resistant electromagnetic suction component 3. Simultaneously install the safety rope 41. The heavy ball 4 is located directly above the position where the test model 6 is to be collided.

[0068] Install the cylinder cover of the pressure cylinder 1 to seal it, and apply hydrostatic pressure until the hydrostatic pressure in the pressure cylinder 1 reaches the target pressure;

[0069] Turn off the power supply 11. As the magnetic force on the pressure-resistant electromagnetic suction component 3 disappears, the heavy ball 4 falls and hits the preset position of the test model 6 below, causing the test model 6 to respond to the impact structure. The sensor component 7 measures the structural strain and structural deformation of the collision, completing the collision test in a high-pressure hydrostatic environment.

[0070] The present invention effectively expands the test items of the vertical pressure cylinder, greatly improves the test flexibility of the vertical pressure cylinder, and greatly contributes to the study of the structural response of underwater engineering structures under the impact of heavy balls.

[0071] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any modifications may be made within the scope of protection of the present invention.

Claims

1. A vertical pressure cylinder deep-sea collision test device, comprising a vertically arranged pressure cylinder (1), characterized in that: A support frame (5) is supported on a support plate (12) at the lower interior of the pressure cylinder (1); a test model (6) is fixedly mounted on the support plate (12) located inside the support frame (5) via a fixing seat (61); a pressure-resistant electromagnetic suction component (3) is installed on the inner top surface of the support frame (5) located directly above the test model (6); when the pressure-resistant electromagnetic suction component (3) is energized, a magnetic force is generated to attract a heavy ball (4) at the center of the bottom surface; when the pressure-resistant electromagnetic suction component (3) is de-energized, the magnetic force disappears and the heavy ball (4) falls freely; a safety rope (41) is connected between the heavy ball (4) and the inner top surface of the support frame (5).

2. The vertical pressure cylinder deep-sea collision test device according to claim 1, characterized in that: The support frame (5) has a structure comprising a plurality of columns (51) arranged in parallel at intervals along the circumferential direction, a plurality of annular frames (52) being installed on the plurality of columns (51) at intervals along the length direction, a crossbeam (2) being installed in the diameter direction of the uppermost annular frame (52), and a pressure-resistant electromagnetic suction component (3) being installed on the crossbeam (2); a plurality of limiting components (9) being installed on one or more of the annular frames (52) at intervals along the circumferential direction, and an outer end portion of a single limiting component (9) being against an inner wall surface of the pressure cylinder (1).

3. The vertical pressure cylinder deep-sea collision test device according to claim 2, characterized in that: The crossbeam (2) is provided with a plurality of hanging holes (21) along the length direction, wherein a pressure-resistant electromagnetic suction component (3) is hung at one of the hanging holes (21) via a hand chain hoist (8), one end of the safety rope (41) is fixed to another hanging hole (21), and the other end of the safety rope (41) is fastened to a heavy ball (4).

4. The vertical pressure cylinder deep-sea collision test device according to claim 3, characterized in that: The top of the hand chain hoist (8) is provided with an upper hook (81), which is hung in the corresponding hanging hole (21); the bottom of the hand chain hoist (8) is provided with a lower hook (82), and the top of the pressure-resistant electromagnetic suction component (3) is extended upward with a lifting ear (32), and a hanging cable (83) is passed through each lifting ear (32) and wrapped around it, and the hanging cable (83) is hung with the upper lower hook (82).

5. The vertical pressure cylinder deep-sea collision test device according to claim 2, characterized in that: The annular frame (52) is arranged concentrically relative to the pressure cylinder (1), and the limiting components (9) are installed on the annular frame (52) at even intervals.

6. The vertical pressure cylinder deep-sea collision test device according to claim 2, characterized in that: The structure of the limiting assembly (9) is as follows: it includes a limiting seat (93) that penetrates the annular frame (52) inwardly and outwardly along the thickness direction, a screw rod (92) that penetrates the limiting seat (93) and is screwedly mounted thereon, a force-applying portion (94) is fixedly provided at the end of the screw rod (92) located inside the limiting seat (93), and a pressing portion (91) is fixedly provided at the end of the screw rod (92) located outside the limiting seat (93), and the outer end of the pressing portion (91) is configured as an outward convex arc surface structure, which abuts against the inner wall surface of the pressure cylinder (1).

7. The vertical pressure cylinder deep-sea collision test device according to claim 2, characterized in that: The columns (51) are cylindrical structures, and the cross section of the cross beam (2) is a T-shaped structure; the columns (51) located at the top of the test model (6) are jointly surrounded by a protective net (50).

8. The vertical pressure cylinder deep-sea collision test device according to claim 1, characterized in that: The structure of the pressure-resistant electromagnetic suction component (3) is as follows: it includes a pressure-resistant tank body (35) with an opening facing upward, an electromagnetic suction cup (36) is accommodated inside the pressure-resistant tank body (35), and the electromagnetic suction cup (36) is connected to a power supply (11) via a cable. When the electromagnetic suction cup (36) is energized, a magnetic force is generated, and when the power is lost, the magnetic force disappears; the upper open end of the pressure-resistant tank body (35) is sealed with a flange end cover (33) via a flange structure to form a closed container, and a watertight joint (31) for the cable to pass out is installed on the flange end cover (33); the flange edge of the flange end cover (33) is in contact with the flange structure at the top of the pressure-resistant tank body (35) and is fixed to each other via fasteners, and a sealing member (34) is pressed between the contact surface of the flange end cover (33) and the pressure-resistant tank body (35), and the sealing member (34) is arranged along the circumferential direction around the opening of the pressure-resistant tank body (35).

9. The vertical pressure cylinder deep-sea collision test device according to claim 8, characterized in that: The bottom surface of the pressure-resistant tank body (35) is fixedly mounted with a magnetic plate (38) via a grid member (37), and a limit plate (39) is mounted on the bottom surface of the magnetic plate (38); a plurality of limit plates (39) are arranged at intervals along the circumference, and the inner side surface of each limit plate (39) is configured as an inclined surface structure, and the inner sides of the plurality of limit plates (39) together form a conical structure with an opening facing downward, and the heavy ball (4) is in contact with and tangent to the inner side surface of the conical structure.

10. A method for using the vertical pressure cylinder deep-sea collision test device according to claim 1, characterized in that: The steps include: Arrange a sensor assembly (7) on the test model (6), and fix the test model (6) on a support plate (12) in the pressure cylinder (1); install a pressure-resistant electromagnetic suction assembly (3) on a support frame (5) above the test model (6); Lead the cables of the sensor assembly (7) and the pressure-resistant electromagnetic suction assembly (3) to the outside of the pressure cylinder (1), and connect them to the strain gauge and the power supply (11) respectively; The power supply (11) is closed, and the heavy ball (4) is adsorbed on the bottom surface of the pressure-resistant electromagnetic suction component (3), and the safety rope (41) is installed simultaneously. The heavy ball (4) is located directly above the position of the test model (6) to be collided; The cylinder cover of the pressure cylinder (1) is installed to seal it, and the hydrostatic pressure is applied until the hydrostatic pressure in the pressure cylinder (1) reaches the target pressure; The power supply (11) is turned off, and as the magnetic force on the pressure-resistant electromagnetic suction component (3) disappears, the heavy ball (4) falls and hits the preset position of the test model (6) below, causing the test model (6) to respond to the impact structure. The sensor component (7) measures the structural strain and structural deformation of the collision, completing the collision test in a high-pressure hydrostatic environment.

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