Offshore air-drop test rope restraining device

Abstract

The utility model belongs to the technical field of offshore air-drop tests, and relates to an offshore air-drop test rope restraining device which comprises a structural frame, a hoisting restraining structure, a rope mooring structure and a rope restraining device body, the structural frame comprises a water contact base, a middle structural cylinder and a top plate, and the hoisting restraining structure is provided with a top connector and a bottom connector. The rope mooring structure comprises a plurality of layers of mooring seats and a plurality of layers of rope mooring belts, the rope restraining device comprises a rope and a rope restraining rope, the middle structure cylinder and the top plate are fastened through screws and nuts, a rubber strip is arranged between two contact faces in a lining mode, and the rope restraining rope is connected with the rope and the rope mooring belts in a knotting mode. The rope can be orderly and reliably restrained in the use environment of the air-drop test, so that the rope works under the conditions of high-speed airflow blowing, high-frequency vibration, water entry impact, water flow interference and the like, the orderliness of the rope in the air-drop test is ensured, and the structure is reliable.

Description

Technical Field

[0001] This utility model relates to the field of marine airdrop test technology, and a rope restraint device, particularly a marine airdrop test rope restraint device. Background Technology

[0002] Currently, commonly used cable restraint devices are typically roller structures, usually installed in relatively stable locations, such as on land or ships. They typically operate by rotating to wind the cable around the roller. However, due to insufficient buoyancy and structural strength, general-purpose cable restraint devices are often unsuitable for sea-based airdrop tests during scientific research. They are prone to sinking or failing to withstand the impact of water entry, and are difficult to integrate with airdrop test systems, making it difficult to avoid conflicts with the airdrop test procedures. Utility Model Content

[0003] The purpose of this utility model is to provide a rope restraint device for sea-dropped tests, which can solve the technical problems of commonly used rope restraint devices being unable to provide buoyancy, insufficient structural strength, rope restraint device mooring, and rope restraint methods being compatible with airdropped tests.

[0004] The technical solution adopted by this utility model is as follows: A rope restraint device for sea-dropped tests includes a structural frame, a hoisting restraint structure, a rope mooring structure, and a rope restraint device. The structural frame includes a water-contact base, a middle structural cylinder, and a top plate. The hoisting restraint structure is provided with a top interface and a bottom interface. The rope mooring structure includes multi-layer mooring seats and multi-layer rope mooring straps. The rope restraint device includes a rope and a rope restraint rope. The middle structural cylinder and the top plate are fastened with screws and nuts, and rubber strips are lined between the two contact surfaces. The rope restraint rope is connected to the rope and the rope mooring straps by knots.

[0005] In the above scheme, the mooring seats are outer mooring seats, middle mooring seats, and inner mooring seats; the mooring straps are outer rope mooring straps, middle rope mooring straps, and inner rope mooring straps. These three straps are sequentially fixed to the outer mooring seats, middle mooring seats, and inner mooring seats by threading and knotting, providing mooring points for the ropes. All three straps are high-strength, flexible textile connecting ropes. The outer mooring seats, middle mooring seats, and inner mooring seats consist of three sets of twenty-four M5 eye bolts, symmetrically distributed at the top and bottom of the central structural cylinder.

[0006] In the above scheme, the number of eye bolts can also be thirty, forty-eight, or other numbers, and the number of rope tethering layers is adapted to the actual size of the rope restraint device.

[0007] In the above scheme, rubber strips are installed between the water-contact base and the two contact surfaces between the central structural cylinder and the top plate. The inner sides of the contact surfaces between the water-contact base and the central structural cylinder, and between the central structural cylinder and the top plate, are coated with silicone sealant. The rope restraint cord is knotted to the rope and rope tethering strap. The rope restraint cord is a flexible textile thread.

[0008] In the above scheme, the annular metal part is welded to the frame structure of the rope restraint device.

[0009] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: it can orderly and reliably constrain the rope in the use environment of airdrop test, so that the rope can work under conditions such as high-speed airflow, high-frequency vibration, water impact, and water flow interference, ensuring the orderliness of the rope in the airdrop test and the reliability of the structure. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the structural frame of the rope restraint device of this utility model;

[0012] Figure 3 This is a schematic diagram of the hoisting structure of the cable restraint device of this utility model;

[0013] Figure 4 This is a schematic diagram of the rope and cable tethering structure of this utility model;

[0014] Figure 5 This is a schematic diagram of the rope and cable constraint structure of this utility model.

[0015] The markings in the diagram are: 100 - structural frame, 200 - hoisting restraint structure, 300 - rope and cable mooring structure, 400 - rope and cable restraint device, 101 - water-contact base, 102 - middle structural tube, 103 - top plate, 201 - top interface, 202 - bottom interface, 311 - outer mooring seat, 312 - middle mooring seat, 313 - inner mooring seat, 321 - outer rope and cable mooring strap, 322 - middle rope and cable mooring strap, 323 - inner rope and cable mooring strap, 401 - rope, 402 - rope and cable restraint rope. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0017] exist Figure 1The diagram illustrates the various parts of the rope restraint device of this utility model, namely the structural frame 100, the hoisting restraint structure 200, the rope tethering structure 300, and the rope restraint device 400. The hoisting restraint structure 200 is provided with a top interface 201 and a bottom interface 202.

[0018] Figure 2 This is a schematic diagram of the structural frame 100 of this utility model. The structural frame 100 is crucial for providing buoyancy and withstanding impacts for the entire cable restraint device, and includes a water-contact base 101, a central structural cylinder 102, and a top plate 103. In this embodiment, the cable restraint device has a drainage capacity of approximately 110L and a weight of approximately 85kg. Therefore, the cable restraint device can provide approximately 25kg of buoyancy, ensuring that it floats to the surface after entering the water. In this embodiment, the water-contact base 101 and the central structural cylinder 102, as well as the central structural cylinder and the top plate 103, are secured with screws and nuts. Furthermore, a rubber strip of a certain size is placed between the two contact surfaces, and the inner part of the contact surfaces is coated with silicone sealant. These multiple sealing measures ensure the reliability of the seal between the contact surfaces.

[0019] Figure 3 The diagram shows the hoisting and restraint section of the cable restraint device, including a top interface 201 and a bottom interface 202. Both the top and bottom interfaces 201 and 202 are connected to the cable restraint device 400 via screws, and silicone sealant is applied to the screw locations and base interfaces. The hoisting section of the cable restraint device is primarily responsible for connecting to the airdrop test system. It must meet the interface requirements of the airdrop test system while ensuring it does not interfere with the normal operation of the system. The hoisting section has four connection points at the top and bottom to maximize the stability of the cable restraint device's posture, thereby ensuring the correctness of the cable's operating procedure. Alternatively, the top and bottom interfaces 201 and 202 can also be connected to the cable restraint device 400 via welding. Welding avoids compromising the sealing of the cable restraint device, resulting in higher operational reliability.

[0020] Figure 4The diagram shows a schematic of the rope tethering structure, including an outer tethering seat 311, a middle tethering seat 312, an inner tethering seat 313, an outer rope tethering strap 321, a middle rope tethering strap 322, and an inner rope tethering strap 323. The outer tethering seat 311, middle tethering seat 312, and inner tethering seat 313 consist of three groups of 24 M5 eye bolts. These eye bolts are symmetrically distributed at the top and bottom of the central structural tube. The connection between the eye bolts and the rope restraint device is a bolt fixation, and the connection between the bolts and the structural frame is sealed with silicone. The outer rope tethering strap 321, middle rope tethering strap 322, and inner rope tethering strap 323 are all high-strength flexible textile connecting ropes, which are sequentially fixed to the outer tethering seat 311, middle tethering seat 312, and inner tethering seat 313 by threading and knotting, providing tethering points for the rope restraint.

[0021] Furthermore, a more preferred method is to weld the annular metal part to the frame structure of the cable restraint device. The welding connection method can avoid damaging the sealing of the cable restraint device and has higher operational reliability.

[0022] Furthermore, the number of eye bolts can be set to 24, or it can be 30, 48 or other numbers. The number of rope tethers does not necessarily have to be 3 layers. The principle is to adapt to the actual size requirements of the rope restraint device, while ensuring that there is no interference between the restraint ropes of each layer and that the rope tethers can be effectively tensioned.

[0023] Figure 5 The diagram illustrates a portion of ropes 401 and rope restraint ropes 402. Ropes 401 are tightly arranged along the axial direction in the rope restraint device. Ropes 401 should be arranged starting from the inner layer, ensuring their orderly arrangement. During arrangement, internal torsional stress should be minimized to improve the reliability of the rope restraint. The rope restraint rope 402 is connected to ropes 401 and the rope tethering strap by a knot. Rope restraint rope 402 is a flexible woven thread with low breaking strength. Under strong pulling force, ropes 401 will break rope restraint ropes 402 one by one, thus ensuring the orderly extraction of ropes 401.

[0024] The above technical solutions are only preferred embodiments of this utility model, and should not be construed as limiting the scope of this utility model. For example, improvements such as adjusting the size of the rope restraint device frame structure, adapting the interface of the rope restraint device hoisting restraint part, and increasing or decreasing the number of rope tethering structure turns are all acceptable. Therefore, equivalent changes made in accordance with the scope of this utility model patent are still within the protection scope of this utility model.

Claims

1. A rope restraint device for sea-dropped tests, comprising a structural frame (100), a hoisting restraint structure (200), a rope mooring structure (300), and a rope restraint device (400), characterized in that: The structural frame (100) includes a water-contact base (101), a middle structural cylinder (102), and a top plate (103). The hoisting constraint structure (200) is provided with a top interface (201) and a bottom interface (202). The cable tethering structure (300) includes a multi-layer tethering seat and a multi-layer cable tethering strap. The cable restraint device (400) includes a cable (401) and a cable restraint rope (402). The middle structural cylinder (102) and the top plate (103) are fastened together with screws and nuts, and a rubber strip is lined between the two contact surfaces. The cable restraint rope (402) is connected to the cable (401) and the cable tethering strap by knots.

2. The rope restraint device for sea-dropped tests as described in claim 1, characterized in that: The mooring seats are an outer mooring seat (311), a middle mooring seat (312), and an inner mooring seat (313); the mooring straps are an outer cable mooring strap (321), a middle cable mooring strap (322), and an inner cable mooring strap (323). The outer cable mooring strap (321), the middle cable mooring strap (322), and the inner cable mooring strap (323) are fixed to the outer mooring seat (311), the middle mooring seat (312), and the inner mooring seat (313) in sequence by threading ropes and tying knots, so as to provide mooring points for the restraint of the ropes.

3. The rope restraint device for sea-dropped tests as described in claim 2, characterized in that: The outer cable tether (321), the middle cable tether (322), and the inner cable tether (323) are all high-strength flexible textile connecting ropes.

4. The rope restraint device for sea-dropped tests as described in claim 3, characterized in that: The outer mooring seat (311), the middle mooring seat (312), and the inner mooring seat (313) consist of three sets of twenty-four M5 eye bolts, which are symmetrically distributed at the top and bottom of the middle structural tube.

5. The rope restraint device for sea-dropped tests as described in claim 4, characterized in that: The number of eye bolts can also be thirty, forty-eight, or other quantities, and the number of layers of rope tethering straps should be adapted to the actual size of the rope restraint device.

6. The rope restraint device for sea-dropped tests as described in claim 1, characterized in that: Rubber strips are provided between the two contact surfaces of the water-contact base (101) and the middle structural cylinder (102) and the top plate (103).

7. The rope restraint device for sea-dropped tests as described in claim 6, characterized in that: The inner side of the contact surface between the water-contact base (101) and the middle structural cylinder (102) and between the middle structural cylinder and the top plate (103) is coated with silicone sealant.

8. The rope restraint device for sea-dropped tests as described in claim 1, characterized in that: The cable restraint rope (402) is connected to the cable (401) and the cable tether by a knot.

9. The rope restraint device for sea-dropped tests as described in claim 8, characterized in that: The cable restraint rope (402) is a flexible textile thread.

10. The rope restraint device for sea-dropped tests as described in claim 1, characterized in that: The circular metal part is welded to the frame structure of the rope restraint device.

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