Marine parachuting simulation test device and test method thereof

Abstract

The invention discloses a marine parachuting simulation test device and a test method thereof.The device comprises a simulation pool, a wave making room and a lifting throwing platform, an auxiliary tower is arranged on the lifting throwing platform, a main tower is arranged on the pool side of the simulation pool, and a steel cable system is erected between the main tower and the auxiliary tower; the steel cable system is provided with a guide rail steel cable and a driving steel cable, the guide rail steel cable and the driving steel cable are connected with a floating driving vehicle running between the main tower and the auxiliary tower, and an umbrella stand system is arranged below the floating driving vehicle. According to the seaborne parachuting simulation test device, a test environment meeting seaborne parachuting simulation test requirements is constructed by transforming or newly building existing pool resources; according to the marine parachuting simulation device, the horizontal and vertical movement speeds in the marine parachuting process can be accurately simulated, the accuracy of a test result is ensured, a real scene training environment is provided, and the lifesaving skills and the coping ability of passengers in a sea condition environment are enhanced through the simulated training.

Description

Technical Field

[0001] The present invention relates to the technical field of water skydiving, and in particular to a sea skydiving simulation test device and a test method thereof. Background Art

[0002] The sea parachute diving simulator is designed to verify the safety and reliability of parachuting crew members in sea conditions. Through simulation tests, crew members' operational skills, reaction times, and psychological preparation can be assessed under varying sea conditions, ensuring they are prepared to handle various emergencies during actual missions. Existing sea parachute diving simulators have relatively limited functionality, can simulate limited test environments, and are inconvenient to switch between horizontal speed and non-speed. Furthermore, their overall safety and flexibility require significant improvement. Summary of the Invention

[0003] The purpose of the present invention is to provide a sea parachuting simulation test device and a test method thereof in response to the problems existing in the prior art.

[0004] To achieve the above object, the technical solution adopted by the present invention is: A sea parachuting simulation test device includes a simulated water pool, a wave-making room is provided on one side of the simulated water pool, and a lifting and launching platform is also provided on the side close to the wave-making room. An auxiliary tower is provided on the lifting and launching platform. A main tower is provided at the edge of the simulated water pool away from the lifting and launching platform. A steel cable system is erected between the main tower and the auxiliary tower. The steel cable system has guide rail steel cables and drive steel cables. The guide rail steel cables and the drive steel cables are connected to a floating drive vehicle running between the main tower and the auxiliary tower. An umbrella frame system is provided below the floating drive vehicle.

[0005] This sea parachute jumping simulation test device constructs a test environment that meets the needs of sea parachute jumping simulation tests by modifying or newly building existing water pool resources. The test device can accurately simulate the horizontal and vertical movement speeds during sea parachute jumping, ensuring the accuracy of the test results, and providing a realistic scenario training environment. Through this simulated training, the crew's life-saving skills and coping capabilities in sea conditions are enhanced.

[0006] Furthermore, the main tower is provided with a monitoring system, which includes a plurality of monitoring poles, each of which is provided with a monitor, and the monitor is used for safety monitoring of the cable system and test personnel; the main tower is also provided with a weather station, and the weather station monitors and displays meteorological data in real time, including at least temperature, wind speed, wind direction, humidity and air pressure.

[0007] Furthermore, a test preparation platform is provided on the main tower, a training safety door is provided on the side of the test preparation platform facing the auxiliary tower, an equipment storage room is provided on the test preparation platform, a first equipment platform is provided on the equipment storage room, the first equipment platform is used to connect and install the steel cable system, and a cantilever lifting mechanism is also provided on the test preparation platform near the equipment storage room.

[0008] Furthermore, a second equipment platform is provided on the top of the auxiliary tower, and the second equipment platform is used to connect and install the steel cable system. A test starting platform is provided at the lower part of the auxiliary tower, and a staircase leading to the test starting platform and the second equipment platform is provided inside the auxiliary tower.

[0009] Furthermore, the steel cable system includes a guide rail steel cable assembly and a drive steel cable assembly, both ends of the floating drive vehicle are installed on the guide rail steel cable assembly, and the two sides of the middle part of the floating drive vehicle are connected to the drive steel cable assembly and are towed and driven by the drive steel cable assembly; the guide rail steel cable assembly includes guide rail steel cables, and the guide rail steel cables are bidirectionally pulled between the ground, the auxiliary tower and the main tower; the drive steel cable assembly includes drive steel cables, and the drive steel cables are bidirectionally pulled between the auxiliary tower and the main tower.

[0010] Furthermore, the guide rail cable assembly includes a pair of first winches and a pair of guide rail cable tensioning mechanisms arranged on the upper part of the main tower, as well as multiple pairs of pulley blocks arranged on the upper part of the auxiliary tower, and multiple pairs of traction winches arranged on the ground and the auxiliary tower. The guide rail cable connects the first winch, the guide rail cable tensioning mechanism, the pulley block and the traction winch; the guide rail cable assembly also includes a cable fixing mechanism equipped with a tension sensor arranged on the ground, which is switched to the cable fixing mechanism after the guide rail cable traction is completed.

[0011] Furthermore, the driving cable assembly includes a second winch respectively arranged on the upper part of the main tower and the auxiliary tower, and the second winch is connected to the floating driving vehicle through the driving cable. The driving cable is arranged in parallel between a pair of guide rail cables, and the traction speed of the driving cable from the auxiliary tower to the main tower meets the requirement of parachute horizontal movement speed ≥ 2m / s.

[0012] Furthermore, the floating drive vehicle includes a base and a vehicle body arranged on the base, guide frames are provided on both sides below the base, a pulley mechanism is provided in the guide frame, the guide rail cable passes through the guide frame and is connected to the pulley mechanism, connecting seats are provided on both sides of the middle part of the base, and the connecting seats are connected to the driving steel cables through anti-disconnection hooks; an umbrella rack release mechanism is provided in the vehicle body, the base and the umbrella rack release mechanism are connected to the umbrella rack system, and a distance sensor is also provided on at least one side of the vehicle body.

[0013] Furthermore, the umbrella frame system includes a retractable hollow umbrella handle, the upper end of the umbrella handle is connected to the floating drive vehicle through a slide groove and card mechanism, the lower end of the umbrella handle is provided with a connecting base plate, the umbrella handle and the connecting base plate are connected to a foldable umbrella frame, the free ends of the umbrella frame are respectively connected to a parachute through a breakable rope, and the middle part of the parachute is also connected to a release rope, and the release rope passes through the detachable connection between the umbrella handle and the floating drive vehicle.

[0014] A test method for a sea parachuting simulation test device, the test method comprising the following steps: Check the working status of the wave-making room, the main tower, the auxiliary tower and the steel cable system, and connect and install the floating drive vehicle and the parachute system; Before the real-life simulation training, a dummy simulation test is conducted, and a pre-operation test is performed. After multiple tests, the accuracy and smoothness of the test device are verified; The floating driving vehicle is moved to the starting point, and the trainer puts on equipment and connects the parachute under the parachute frame system to start the parachute operation; During the test, the parachute under the parachute frame system remained in an expanded state. The floating drive vehicle released the parachute after moving to a predetermined position, and the trainer fell downward together with the expanded parachute, simulating the situation of real skydiving on the simulated water pool.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The sea parachute jumping simulation test device constructs a test environment that meets the needs of sea parachute jumping simulation tests by transforming or newly building existing water pool resources; the test device can accurately simulate the horizontal and vertical movement speeds during sea parachute jumping, ensure the accuracy of the test results, and provide a real-scene training environment. Through this simulation training, the crew's life-saving skills and coping capabilities in sea conditions are enhanced; 2. The sea parachute jumping simulation test device can also replicate parachute entry into water experiments without horizontal speed, and simulate parachute entry into water experiments with horizontal speed; 3. The test device is also designed with a steel cable system that is easy to disassemble and install, thereby enhancing the flexibility and maintainability of the equipment; 4. The setting of the wave-making room can allow water to simulate real waves in the pool, and the lifting and launching platform is set on the side close to the wave-making room, which can allow trainees to land from deep water to shallow water and simulate landing training along the direction of the waves; 5. The main tower and The setting of the auxiliary tower can provide a solid support for the entire device, ensuring stability and safety during the parachute jumping simulation. By carrying a steel cable system, it can simulate both parachute landing tests without horizontal velocity and parachute landing tests with horizontal velocity. 6. The floating drive vehicle itself does not need to be equipped with a drive system. The overall structure is relatively simple and light in weight, which greatly reduces the load while taking into account stability and safety. The parachute can be connected and released through the parachute frame release mechanism, and the distance sensor can monitor the real-time position of the vehicle body. 7. The main function of the parachute frame system is to forcibly open the parachute, providing a guarantee for the parachute to quickly open and form after being unhooked. The parachute frame needs to have good strength and rigidity to ensure the need for the parachute to open. The umbrella handle is not only used to connect and install the umbrella frame, but also to connect the floating drive vehicle. The parachute is suspended below the free part of the umbrella frame through a breakable rope so that after the parachute is released, the parachute falls under the action of gravity and separates from the umbrella frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic plan view of a sea parachuting simulation test device according to the present invention; Figure 2 This is a schematic diagram of the overall structure of a sea parachuting simulation test device according to the present invention; Figure 3 Schematic diagram of the three-dimensional structure of the main tower of the present invention; Figure 4 Schematic diagram of the main tower structure from a top view of the present invention; Figure 5 This is a side structural diagram of the auxiliary tower of the present invention; Figure 6 This is a schematic diagram of the structure of the steel cable system of the present invention; Figure 7This is a schematic diagram of the installation of the guide rail cable assembly of the present invention; Figure 8 This is a schematic diagram of the working process of setting up the drive cable assembly of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the floating drive vehicle of the present invention; Figure 10 It is a partial cross-sectional structural schematic diagram of the floating drive vehicle of the present invention; Figure 11 This is a schematic diagram of the internal structure of the levitation drive vehicle of the present invention; Figure 12 This is a schematic diagram of the state in which the umbrella stand release mechanism of the floating drive vehicle of the present invention is opened; Figure 13 This is a schematic diagram of the closed state of the umbrella stand release mechanism in the floating drive vehicle of the present invention; Figure 14 Schematic diagram of the structure of the umbrella stand system of the present invention; Figure 15 This is a schematic diagram of the structure of the umbrella stand system connected to the parachute of the present invention; Figure 16 A schematic diagram of the umbrella stand system of the present invention in a folded state; Figure 17 This is a partial structural diagram of the connection between the umbrella stand system and the floating drive vehicle of the present invention; In the figure: 1. Simulated water pool; 2. Wave-making room; 3. Lifting and launching platform; 4. Auxiliary tower; 5. Main tower; 6. Cable system; 7. Floating drive vehicle; 701. Base; 702. Vehicle body; 703. Guide frame; 704. Pulley mechanism; 7041. Roller; 705. Connecting seat; 706. Limiting column; 707. Installation channel; 8. Umbrella frame system; 801. Umbrella handle; 802. Connecting bottom plate; 803. Umbrella frame; 9. Test preparation platform; 10. Equipment storage room; 11. First equipment platform; 12. Cantilever lifting mechanism; 13. Monitoring pole; 14. Monitor; 15. Weather station; 16. Second equipment platform 1. Test platform; 17. Test starting platform; 18. First winch; 19. Guide rail cable tensioning mechanism; 20. Pulley block; 21. Traction winch; 22. Cable fixing mechanism; 23. Guide rail cable; 24. Second winch; 25. Drive cable; 26. Life-saving thrower; 27. Anti-unhooking; 28. Vertical mounting plate; 29. ​​Locking block; 30. Notch; 31. Locking rod; 32. Connecting rod; 33. Crank; 34. Crank motor; 35. Release rope; 36. Breakable rope; 37. Distance sensor; 38. LORA wireless transmission module; 39. Lithium battery; 40. Parachute; 41. Slide fixing plate; 42. Slide moving plate. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all 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.

[0018] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," etc., etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Example 1

[0019] like Figures 1 to 16 As shown, a sea parachuting simulation test device includes a simulated water pool 1, a wave-making room 2 is provided on one side of the simulated water pool 1, and a lifting and delivering platform 3 is also provided on the side close to the wave-making room 2, an auxiliary tower 4 is provided on the lifting and delivering platform 3, a main tower 5 is provided at the edge of the simulated water pool 1 away from the lifting and delivering platform 3, a steel cable system 6 is erected between the main tower 5 and the auxiliary tower 4, the steel cable system 6 has a guide rail steel cable 23 and a drive steel cable 25, the guide rail steel cable 23 and the drive steel cable 25 are connected to a floating drive vehicle 7 running between the main tower 5 and the auxiliary tower 4, and an umbrella frame system 8 is provided under the floating drive vehicle 7.

[0020] This sea parachute jumping simulation test device constructs a test environment that meets the needs of sea parachute jumping simulation tests by modifying or newly building existing water pool resources. The test device can accurately simulate the horizontal and vertical movement speeds during sea parachute jumping, ensuring the accuracy of the test results, and providing a realistic scenario training environment. Through this simulated training, the crew's life-saving skills and coping capabilities in sea conditions are enhanced.

[0021] This sea parachuting simulation test facility can also replicate parachute entry tests without horizontal velocity, as well as simulate parachute entry tests with horizontal velocity. The main tower 5, located outside the shallow water area, allows for installation and testing of the floating drive vehicle 7 and parachute system 8. The auxiliary tower allows parachutists to connect to the parachute system and perform their parachute missions. Furthermore, this test facility features a cable system that facilitates both disassembly and installation, enhancing the equipment's flexibility and maintainability.

[0022] The setting of the wave-making room 2 can allow water to simulate real waves in the pool. The lifting and launching platform is set on a side close to the wave-making room, which can allow trainees to land from deep water to shallow water and simulate landing training along the direction of the waves.

[0023] The arrangement of the main tower 5 and the auxiliary tower 4 can provide a solid support for the entire device, ensuring stability and safety during the parachute simulation process. By carrying a steel cable system, it can simulate both parachute landing tests without horizontal velocity and parachute landing tests with horizontal velocity.

[0024] Specific, combined Figure 3 and Figure 4 As shown, a test preparation platform 9 is provided on the main tower 5, and a training safety door is provided on the side of the test preparation platform 9 facing the auxiliary tower. An equipment storage room 10 is provided on the test preparation platform 9, and a first equipment platform 11 is provided on the equipment storage room 10. The first equipment platform 11 is used to connect and install the steel cable system. A cantilever lifting mechanism 12 is also provided on the test preparation platform 9 near the equipment storage room.

[0025] The main tower 5 is a steel frame structure with a height of more than 20m, so that the height of the drive cable and the guide cable from the ground (from the water surface) can exceed 18m; the test preparation platform can be used for personnel activities to prepare for test-related work. The area of ​​the test preparation platform is not less than 6m×6m, the height is 20m from the ground, and the load capacity is ≥500kg / m 2 ; The surface of the test preparation platform 9 should be flat and have anti-slip measures; the test preparation platform 9 facing the test pool should be equipped with a retractable or switchable safety guardrail and a training safety door, and safety interlock measures should be set; the remaining sides should be equipped with fixed safety guardrails and necessary personnel and test piece passages; the equipment storage room 10 can place various equipment, and its top can also be used as the first equipment platform 11 to install equipment such as winches; a step ladder is provided in the main tower, and a ladder is provided in the equipment storage room to facilitate personnel to move up and down.

[0026] The cantilever lifting mechanism 12 is a lifting device arranged on the test preparation platform, which has the function of lifting heavy objects within 5m of the main tower to the test preparation platform (and the first equipment platform) and lifting heavy objects from the test preparation platform (and the first equipment platform) to the ground. The lifting process does not interfere with other structures of the equipment. The lifting height is ≥26m and the lifting weight is ≥2t.

[0027] Furthermore, the main tower 5 is provided with a monitoring system, which includes a plurality of monitoring poles 13, each of which is provided with a monitor 14, and the monitor 14 is used for safety monitoring of the cable system and test personnel; the main tower is also provided with a weather station 15, and the weather station 15 monitors and displays meteorological data in real time, including at least temperature, wind speed, wind direction, humidity, air pressure, etc.

[0028] The monitoring poles 13 are respectively provided on the test preparation platform 9 and the first equipment platform 11 so that the monitor 14 can be installed at a high position. The monitor 14 can be a camera such as a gun camera or a dome camera, so as to effectively and safely monitor the first and second winches, the traction winch and the test personnel.

[0029] Further, combined Figure 5 The auxiliary tower 4 is provided with a second equipment platform 16 on the top, which is used to connect and install the cable system. The auxiliary tower 4 is provided with a test starting platform 17 at the bottom, and the auxiliary tower 4 is provided with a staircase leading to the test starting platform 17 and the second equipment platform 16.

[0030] The area of ​​the test starting platform 17 is not less than 4m×2m (east-west×north-south), the height from the ground is 18m, and the load capacity is ≥200kg / m 2 The test starting platform 17 has a flat surface and anti-slip measures; the test starting platform 17 is provided with a retractable or switchable safety guardrail facing the pool side, and a safety interlocking measure is provided; the remaining surfaces should be provided with fixed safety guardrails and necessary personnel and test piece passages.

[0031] Further, combined Figure 6-Figure 8 As shown, the cable system 6 includes a guide rail cable assembly and a drive cable assembly, both ends of the floating driving vehicle 7 are installed on the guide rail cable assembly, and the two sides of the middle part of the floating driving vehicle 7 are connected to the drive cable assembly and are driven by the drive cable assembly; the guide rail cable assembly includes a guide rail cable 23, and the guide rail cable 23 is bidirectionally pulled between the ground, the auxiliary tower 4 and the main tower 5; the drive cable assembly includes a drive cable 25, and the drive cable 25 is bidirectionally pulled between the auxiliary tower 4 and the main tower 5.

[0032] The guide rail cable assembly mainly utilizes its guide rail cable to support, connect and install the floating drive vehicle, and provide guidance and appropriate traction for the floating drive vehicle, so that the floating drive vehicle can move in the area between the main tower and the auxiliary tower; the driving cable assembly utilizes its driving cable to connect the floating drive vehicle to drive the vehicle to move between the main tower and the auxiliary tower, thereby playing a traction role.

[0033] Specifically, the guide rail cable assembly includes a pair of first hoists 18 and a pair of guide rail cable tensioning mechanisms 19 arranged on the upper part of the main tower 5 (first equipment platform 11), multiple pairs of pulley blocks 20 arranged on the upper part of the auxiliary tower 4 (second equipment platform 16), and multiple pairs of traction winches 21 arranged on the ground and the auxiliary tower. The guide rail cable 23 connects the first hoist 18, the guide rail cable tensioning mechanism 19, the pulley block 20 and the traction winch 21. Through such an arrangement, a double guide rail cable structure can be set up between the main tower 5 and the auxiliary tower 4. The guide rail cable tensioning mechanism 19 can adjust the tensioning degree of the guide rail cable 23 to ensure that its deflection in use does not exceed 3m. The spacing between a pair of guide rail cables 23 is 0.8 to 1.2m, and the load-bearing capacity reaches 2t. The first hoist 18 can retract and extend the guide rail cable, and cooperate with the traction hoist 21 and the pulley block 20 to quickly build or dismantle the guide rail cable assembly.

[0034] The guide rail cable assembly also includes a cable fixing mechanism 22 mounted on the ground and equipped with a tension sensor. Once the guide rail cable is pulled, it is connected to the cable fixing mechanism 22. The tension sensor monitors the tension on the guide rail cable and transmits the data to the master control system for future use. Traction winches on the ground and on the auxiliary tower are responsible for pulling the guide rail cable from the tower top to the ground.

[0035] The ground-based traction winches are located approximately 50 meters behind the auxiliary tower. After the two guide cables are pulled to the top of the auxiliary tower 4, they are then fixed to the cable fixing mechanism 22 (anti-slip hook) on the ground. This design aims to optimize the force pattern and direction of the auxiliary tower, thereby enhancing the stability and reliability of the guide cable assembly in the entire sea parachuting simulation experimental device.

[0036] Furthermore, the driving cable assembly includes a second winch 24 respectively arranged on the upper part of the main tower 5 and the auxiliary tower 4, and the second winch 24 is connected to the floating driving vehicle 7 through the driving cable 25. The driving cable 25 is arranged in parallel between a pair of guide rail cables 23. The traction speed of the driving cable 25 from the auxiliary tower to the main tower meets the requirement of parachute horizontal movement speed ≥ 2m / s.

[0037] A pair of the second winches 24 cooperate with each other (one pulls and the other releases) to enable the floating drive vehicle 7 to carry the umbrella frame system 8 to reciprocate at a designed speed. The drive cable is easy to assemble and control the motion, and ensures that the guide cable and the drive cable are parallel and do not interfere with each other.

[0038] A pair of the second winches 24 work together. When the main tower cable winch performs an accelerated winding action to pull the floating drive vehicle, the auxiliary tower-driven cable winch will synchronously release the floating drive vehicle and ensure that the cable connected to the floating drive vehicle remains taut and moves synchronously with the floating drive vehicle to prevent the cable from loosening.

[0039] After the guide rail cable assembly is built, the floating driving vehicle 7 is installed on the guide rail cable 23. At this time, it is necessary to ensure that the driving cable assembly and the floating driving vehicle 7 are firmly connected. The specific operation steps are as follows: The levitation vehicle is hoisted and mounted on the guide rail cable using the cantilever mechanism on the main tower. Subsequently, the main tower winch (12.0 mm in diameter) is used to quickly secure the cable to the levitation vehicle using a lock.

[0040] With the help of a life-saving thrower, the main tower staff accurately threw the rescue rope to the auxiliary tower, and its tail end was connected to the 4mm diameter steel wire rope of the second winch of the main tower through a lock.

[0041] The auxiliary tower operator then used the rescue rope to pull the 4mm diameter steel wire rope of the second winch of the main tower to the auxiliary tower, and quickly connected it to the 12mm diameter steel wire rope of the auxiliary tower's drive cable.

[0042] The main tower operator manually starts the second winch that controls the main tower, pulls the 12mm diameter wire rope onto the main tower, and quickly connects it to the floating drive vehicle through a lock.

[0043] The auxiliary tower operator manually starts the second hoist of the auxiliary tower and slowly pulls the floating drive vehicle from the main tower end to the starting platform at the auxiliary tower end to carry out the test task.

[0044] After the sea jumping simulation experiment is over, prepare to dismantle the drive cable: Loosen the steel cable at the auxiliary tower drive trolley end; slowly rotate the second winch motor of the main tower in the opposite direction to reel the drive cable onto the cylinder to complete the disassembly of the drive cable; use the boom mechanism of the main tower to disassemble the floating drive vehicle from the guide rail cable, and the workers will place it in the equipment storage room of the main tower.

[0045] Further, combined Figure 9 and Figure 10As shown, the floating drive vehicle 7 includes a base 701 and a vehicle body 702 arranged on the base 701, guide frames 703 are provided on both sides below the base 701, a pulley mechanism 704 is provided in the guide frame 703, the guide rail cable 23 passes through the guide frame 703 and is connected to the pulley mechanism 704, connecting seats 705 are respectively provided on both sides of the middle part of the base 701, and the connecting seats 705 are respectively connected to the driving cable 25 through anti-disconnection hooks 27; an umbrella stand release mechanism is provided in the vehicle body 702, the base 701 and the umbrella stand release mechanism are connected to the umbrella stand system 8, and a distance sensor 37 is also provided on at least one side of the vehicle body 702.

[0046] This structural layout allows the two sides of the levitation vehicle to be easily supported on the guide rail cables, and facilitates connecting the drive cables from the center. The levitation vehicle 7 itself does not require a drive system, resulting in a relatively simple overall structure. The weight can be controlled within 40 kg, significantly reducing the load while balancing stability and safety. The parachute can be connected and released via the parachute release mechanism, and the distance sensor can monitor the real-time position of the vehicle.

[0047] Specifically, the pulley mechanism 704 includes two upper and lower rows of rollers 7041 (with a wire groove in the middle of the rollers) arranged in the guide frame 703. The upper and lower rows of rollers 7041 are staggered, and the guide rail steel cable 23 passes through these rollers 7041 to play a connecting and supporting role; in this embodiment, three rollers are arranged on the top and two rollers are arranged on the bottom, which are staggered between the upper roller groups to ensure that the guide rail steel cable will not slip out of its wire groove; a pair of limit columns are also provided at both ends of the guide frame near the entrance and exit, which can further limit the guide rail steel cable in the horizontal direction.

[0048] Combine Figure 11-13 As shown, the umbrella stand release mechanism includes a vertical mounting plate 28 disposed within the vehicle body 702. A locking block 29 is provided on one side of the vertical mounting plate 28. The locking block 29 has a downward-facing notch 30 and a locking rod 31 extending through the notch 30. One end of the locking rod 31 is rotatably connected to a connecting rod 32. One end of the connecting rod 32 is rotatably connected to a crank 33. The crank 33 is connected to a crank motor 34 mounted on the vertical mounting plate 28. A mounting channel 707 is provided at the base below the locking block 29. The mounting channel 707 can be used to connect the umbrella stand system 8 and facilitate the passage of the release cord 35.

[0049] The release cord 35 of the parachute 40 is connected to the locking block 29 and locked by the locking rod 31 (the locking rod 31 is inserted into the notch 30). When the locking rod 31 exits the notch 30, the release cord 35 is automatically released. During the reciprocating motion of the connecting rod in the umbrella stand release mechanism, the rotation of the crank generates torque, which is transmitted to the connecting rod and the locking rod. To calculate the reciprocating torque of the connecting rod, the following formula can be used:

[0050] Where M is the torque, F is the force acting on the connecting rod (200 kg in this embodiment), r is the length of the connecting rod (106 mm in this embodiment), and θ is the angle between the connecting rod and the crank (113° in the locked state in this embodiment).

[0051] The parachute release mechanism, housed within the vehicle, not only releases the parachutist but also boasts a robust load capacity of at least 200 kg. This mechanism is connected to the overall control system via a LoRa wireless transmission module 38, which controls the release of the parachute 40. A 24V lithium battery 39 is also housed within the vehicle, ensuring a continuous operating time of at least two hours. This battery provides power for the crank motor, the LoRa wireless transmission module, and the distance sensor (such as a laser rangefinder).

[0052] Further, combined Figure 14-16 As shown, the umbrella frame system 8 includes a retractable hollow umbrella handle 801, the upper end of the umbrella handle 801 is connected to the floating drive vehicle 7 through a slide plate mechanism, and the lower end of the umbrella handle 801 is provided with a connecting base plate 802. The umbrella handle 801 and the connecting base plate 802 are connected with a foldable umbrella frame 803, and the free ends of the umbrella frame 803 are respectively connected to the parachute 40 through a breakable rope 36. The middle part of the parachute 40 is also connected to a release rope 35, and the release rope 35 passes through the umbrella handle 801 and is detachably connected to the floating drive vehicle 7.

[0053] The primary function of the parachute frame system 8 is to forcibly deploy the parachute 40, ensuring rapid full deployment after the parachute 40 is unhooked. The parachute frame must possess sufficient strength and rigidity to ensure the desired parachute deployment. The handle 801 not only connects to and mounts the parachute frame 803 but also connects to the levitation vehicle 7. The parachute 40 is not attached to the frame but is suspended below the free end of the frame 803 via a breakable cord 36. This allows the parachute 40 to drop under gravity and separate from the frame 803 after release.

[0054] In this embodiment, the parachute frame, which connects to the parachute, is constructed from linked 40x40x2mm thick stainless steel square tubes. Its load capacity exceeds 200kg, and the robust and reliable structure is capable of withstanding the weight of the experimental parachute and the tensile forces generated when the parachute breaks. It also reduces overall weight. Finite element mechanical simulations of the parachute frame structure show that under a load of 2 times 400kg, the maximum displacement of the frame at the top of the parachute frame is approximately 13mm, indicating a safety factor greater than 2 times the safety factor. The parachute frame comprises eight support frames, each with a breakable rope attached to its free end.

[0055] The center handle 801 is composed of two interlocking, sliding polygonal stainless steel square tubes. Its shape and performance resemble the skeletal structure of a folding umbrella; the umbrella frame system can be expanded and retracted. When fully extended, the eight supporting frames and the handle combine to form a circular frame with a diameter of 5 meters. The top of the frame quickly connects to the floating drive vehicle via a slide-and-plate mechanism. Once connected, the slide-and-plate mechanism locks, eliminating the need for manual lifting for installation. Bolts then secure the frame to the floating drive vehicle.

[0056] Combine Figure 17 As shown, the chute clamping mechanism includes a chute fixing plate 41 and a chute movable plate 42. The chute fixing plate 41 is provided with a U-shaped clamping groove with a side opening, and the chute movable plate 42 is provided with an arcuate groove. When the chute movable plate 42 moves from the side toward the chute fixing plate 41, the U-shaped clamping groove and the arcuate groove can clamp the mounting channel below the base 701. After clamping, it can be fastened with bolts. The U-shaped clamping groove is provided with a chute, and the chute movable plate is provided with slides on both sides, which cooperate with the chute.

[0057] During the experiment, the parachute was secured to the ends of eight support frames with breakable cords to maintain its deployed position. A parachutist was attached to the parachute. During the experiment, the hovercraft released the harness connecting the parachutes (the release cords), allowing the parachutes to fall downwards along with the deployed parachute. This also severed the anchoring cords (the breakable cords) connecting the parachute to the parachute frames, simulating conditions similar to those of a real parachuting jump. Example 2

[0058] A test method for a sea parachuting simulation test device, the test method comprising the following steps: Check the working status of the wave-making room, the main tower, the auxiliary tower and the steel cable system, and connect and install the floating drive vehicle and the parachute system; Before the real-life simulation training, a dummy simulation test is conducted, and a pre-operation test is performed. After multiple tests, the accuracy and smoothness of the test device are verified; The floating driving vehicle is moved to the starting point, and the trainer puts on equipment and connects the parachute under the parachute frame system to start the parachute operation; During the test, the parachute under the parachute frame system remained in an expanded state. The floating drive vehicle released the parachute after moving to a predetermined position, and the trainer fell downward together with the expanded parachute, simulating the situation of real skydiving on the simulated water pool.

[0059] On the launch platform for the auxiliary tower test, the first step is to ensure that the pilot's (or initially a dummy's) connecting lock block is securely connected to the harness mechanism. After multiple dummy-simulated launch procedures are completed and verified, the landing process simulation with real people is then carried out. Next, the pre-installed rope on the levitation vehicle is connected to the power-off switch pin, ensuring that all equipment is ready.

[0060] The complete parachute drop simulation sequence is then initiated. This sequence activates the winch at the main tower test preparation platform, leveraging the traction cable to accelerate the vehicle and its parachute system toward the main tower test preparation platform (i.e., westward). During this process, the vehicle's onboard laser rangefinder monitors and provides real-time feedback on the vehicle's speed. When the speed reaches 2 m / s (provided by the onboard laser rangefinder), the system immediately responds by rapidly unlocking the parachute release mechanism, allowing the parachute to freely release and safely land in the pool below, thus completing the entire parachute drop simulation test.

[0061] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A sea parachuting simulation test device, characterized in that: It includes a simulated water pool, a wave-making room is provided on one side of the simulated water pool, a lifting and delivering platform is also provided on the side close to the wave-making room, an auxiliary tower is provided on the lifting and delivering platform, a main tower is provided on the edge of the simulated water pool away from the lifting and delivering platform, a steel cable system is set between the main tower and the auxiliary tower, the steel cable system has guide rail steel cables and drive steel cables, the guide rail steel cables and the drive steel cables are connected to a floating drive vehicle running between the main tower and the auxiliary tower, and an umbrella rack system is provided under the floating drive vehicle.

2. The sea parachuting simulation test device according to claim 1, characterized in that: The main tower is provided with a monitoring system, which includes a plurality of monitoring poles, each of which is provided with a monitor, and the monitor is used for safety monitoring of the cable system and test personnel; the main tower is also provided with a weather station, which monitors and displays meteorological data in real time, including at least temperature, wind speed, wind direction, humidity and air pressure.

3. The sea parachuting simulation test device according to claim 1, characterized in that: A test preparation platform is provided on the main tower, a training safety door is provided on the side of the test preparation platform facing the auxiliary tower, an equipment storage room is provided on the test preparation platform, a first equipment platform is provided on the equipment storage room, the first equipment platform is used to connect and install the steel cable system, and a cantilever lifting mechanism is also provided on the test preparation platform near the equipment storage room.

4. The sea parachuting simulation test device according to claim 1, characterized in that: A second equipment platform is provided on the top of the auxiliary tower, and the second equipment platform is used for connecting and installing the steel cable system. A test starting platform is provided at the lower part of the auxiliary tower.

5. The sea parachuting simulation test device according to claim 1, characterized in that: The steel cable system includes a guide rail steel cable assembly and a drive steel cable assembly. The two ends of the floating drive vehicle are installed on the guide rail steel cable assembly. The two sides of the middle part of the floating drive vehicle are connected to the drive steel cable assembly and are driven by the drive steel cable assembly; the guide rail steel cable assembly includes guide rail steel cables, and the guide rail steel cables are bidirectionally pulled between the ground, the auxiliary tower and the main tower; the drive steel cable assembly includes drive steel cables, and the drive steel cables are bidirectionally pulled between the auxiliary tower and the main tower.

6. The sea parachuting simulation test device according to claim 5, characterized in that: The guide rail cable assembly includes a pair of first winches and a pair of guide rail cable tensioning mechanisms arranged on the upper part of the main tower, multiple pairs of pulley blocks arranged on the upper part of the auxiliary tower, and multiple pairs of traction winches arranged on the ground and the auxiliary tower. The guide rail cable connects the first winches, the guide rail cable tensioning mechanisms, the pulley blocks and the traction winches; the guide rail cable assembly also includes a cable fixing mechanism equipped with a tension sensor arranged on the ground, which is switched to the cable fixing mechanism after the guide rail cable traction is completed.

7. The sea parachuting simulation test device according to claim 5, characterized in that: The driving cable assembly includes a second winch respectively arranged on the upper part of the main tower and the auxiliary tower, and the second winch is connected to the floating driving vehicle through the driving cable. The driving cable is arranged in parallel between a pair of guide rail cables. The traction speed of the driving cable from the auxiliary tower to the main tower meets the requirement of parachute horizontal movement speed ≥ 2m / s.

8. The sea parachuting simulation test device according to claim 1, characterized in that: The floating drive vehicle includes a base and a vehicle body arranged on the base. Guide frames are provided on both sides below the base. A pulley mechanism is provided in the guide frame. The guide rail cable passes through the guide frame and is connected to the pulley mechanism. Connecting seats are provided on both sides of the middle of the base, and the connecting seats are connected to the driving steel cables through anti-disconnection hooks. An umbrella rack release mechanism is provided in the vehicle body, and the base and the umbrella rack release mechanism are connected to the umbrella rack system. A distance sensor is also provided on at least one side of the vehicle body.

9. The sea parachuting simulation test device according to claim 1, characterized in that: The umbrella frame system includes a retractable hollow umbrella handle, the upper end of the umbrella handle is connected to the floating drive vehicle through a slide groove and card plate mechanism, the lower end of the umbrella handle is provided with a connecting base plate, the umbrella handle and the connecting base plate are connected to a foldable umbrella frame, the free ends of the umbrella frame are respectively connected to parachutes through breakable ropes, and the middle part of the parachute is also connected to a release rope, and the release rope passes through the detachable connection between the umbrella handle and the floating drive vehicle.

10. A test method for a sea parachuting simulation test device according to any one of claims 1 to 9, characterized in that: The test method comprises the following steps: Check the working status of the wave-making room, the main tower, the auxiliary tower and the steel cable system, and connect and install the floating drive vehicle and the parachute system; Before the real-life simulation training, a dummy simulation test is conducted, and a pre-operation test is performed. After multiple tests, the accuracy and smoothness of the test device are verified; The floating driving vehicle is moved to the starting point, and the trainer puts on equipment and connects the parachute under the parachute frame system to start the parachute operation; During the test, the parachute under the parachute frame system remained in an expanded state. The floating drive vehicle released the parachute after moving to a predetermined position, and the trainer fell downward together with the expanded parachute, simulating the situation of real skydiving on the simulated water pool.

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