Helicopter water surface rescue salvage device

Abstract

The utility model relates to a water surface rescue salvaging device for a helicopter, which belongs to the technical field of water surface rescue and comprises a main frame, a salvaging net mounted at the bottom of the main frame, a U-shaped notch formed in one side of the main frame and used for allowing people falling into water to enter, and a protection mechanism mounted in the U-shaped notch of the main frame. Through the U-shaped notch of the main frame, a person falling into water can be fished into the fishing net when the helicopter moves, and when the fishing device is separated from the water surface after fishing, the water absorption sponge which absorbs water and increases weight pulls the rotating rod in the U-shaped notch from a vertical state to a horizontal state through the connecting rope, so that the rotating rod can form a fence in the U-shaped notch, and the fishing device can be used for fishing the person falling into water. The flying posture of the helicopter is too large or a hung rope swings to fall into the water, the person falling into the water is not prone to being thrown out through the U-shaped notch, the safety performance of the device is improved, and therefore the fear of the person falling into the water in the transferring process is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of water rescue technology, specifically relating to a helicopter water rescue and salvage device. Background Technology

[0002] Water rescue refers to rescue operations conducted during marine work, river development, shipping, underwater construction, aquaculture, fishing, and other water-related activities, in response to accidental losses or disasters caused by negligence of workers or certain force majeure events, or due to flooding. Water rescue operations typically utilize equipment such as helicopters and salvage devices to pull people out of the water.

[0003] Patent CN209382225U discloses "a helicopter or drone water rescue salvage basket, which relates to an aircraft salvage device. The lower front part of the suspension block is fixedly connected to the upper ends of the front inclined rod A and the front inclined rod B. This utility model can be kept in the unit for backup. Once a person falls into the water or a salvage operation is needed, it can be connected to a helicopter or drone through the suspension block to carry out the salvage operation, which can facilitate the rescue of people and boats in areas that cannot be reached or where the rescue risk factor is high."

[0004] Although the U-shaped gap in the aforementioned retrieval frame can be used to retrieve a person who has fallen into the water into the retrieval net, the U-shaped gap lacks a containment mechanism. If the helicopter's flight attitude is too large or the hanging rope swings, the person may be thrown out of the retrieval frame through the U-shaped gap, posing a certain danger and increasing the fear of the person who has fallen into the water during the transfer process. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a helicopter water rescue and salvage device to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A helicopter water rescue and salvage device includes a main frame, a salvage net installed at the bottom of the main frame, a U-shaped opening on one side of the main frame for allowing a person who has fallen into the water to enter, and a protective mechanism installed in the U-shaped opening of the main frame. The protective mechanism includes rotating rods on both sides of the U-shaped opening of the main frame, a counterweight plate fixed at the bottom of the rotating rods, a connecting rope fixed at the top of one end of the counterweight plate, a pulley mechanism installed at the top of the main frame for guiding and limiting the connecting rope, and a water-absorbing sponge located at the bottom of the connecting rope and at the bottom of the salvage net for pulling the rotating rods from a vertical state to a horizontal state via the connecting rope after absorbing water and increasing weight.

[0008] As a further optimization of this utility model, the top of both sides of the U-shaped notch of the main frame is fixedly provided with a limiting plate that abuts against the top of the rotating rod.

[0009] As a further optimization of this utility model, the pulley mechanism includes a first fixed pulley fixedly installed between the limiting plate and the top of the main frame, and a second fixed pulley fixedly installed at the top edge of the main frame, wherein the connecting rope is coupled between the tops of the first and second fixed pulleys.

[0010] As a further optimization of this utility model, the top of both the first and second fixed pulleys is provided with a stop bar for blocking and limiting the bottom connecting rope.

[0011] As a further optimization of this utility model, a number of lifting lugs are fixedly provided on the top of the main frame, and a connecting plate is fixedly provided between the bottom end of the connecting rope and the top of the water-absorbing sponge.

[0012] As a further optimization of this utility model, a counterweight water tank is fixedly provided at one end of the main frame away from the U-shaped notch, an inlet plug is movably provided in the water inlet at the top of the counterweight water tank, and a drain plug is movably provided in the drain outlet at the bottom of the counterweight water tank.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The U-shaped opening in the main frame allows for the retrieval of people who have fallen into the water to be placed into the retrieval net while the helicopter is moving. After retrieval, when the retrieval device leaves the water, the water-absorbing sponge, which increases weight by absorbing water, will pull the rotating rod inside the U-shaped opening from a vertical position to a horizontal position through the connecting rope. This allows the rotating rod to form a barrier inside the U-shaped opening, making it less likely for people who have fallen into the water to be thrown out through the U-shaped opening due to excessive helicopter flight or swinging of the hanging ropes. This improves the safety performance of the device and reduces the fear of people who have fallen into the water during the transfer process.

[0015] 2. By setting up the pulley mechanism and cooperating with the stop bar to limit the movement, the connecting rope can be guided and limited, and the resistance and wear of the connecting rope during movement can be reduced, thus extending the service life of the connecting rope. By adding water to the counterweight tank, the weight on both sides of the device can be roughly balanced, improving the stability of the salvage device during transportation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is the utility model Figure 1 Enlarged view of the A-structure;

[0018] Figure 3 This is a schematic diagram of the counterweight water tank structure of this utility model.

[0019] In the diagram: 1. Main frame; 11. Salvage net; 12. U-shaped notch; 13. Lifting lug; 2. Rotating rod; 21. Counterweight plate; 22. Connecting rope; 23. Connecting plate; 24. Absorbent sponge; 25. Limiting plate; 26. First fixed pulley; 27. Second fixed pulley; 28. Stop bar; 3. Counterweight water tank; 31. Inlet plug; 32. Drain plug. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Example

[0022] like Figure 1-3 As shown, a helicopter water rescue and salvage device includes a main frame 1, a salvage net 11, a U-shaped notch 12, and a protective mechanism. The salvage net 11 is installed at the bottom of the main frame 1. The main frame 1 and the salvage net 11 form a salvage frame commonly used in existing helicopters. Its internal structure and principle have been disclosed and will not be elaborated here.

[0023] like Figure 1-3 As shown, the top of the main frame 1 is fixed with several lifting lugs 13. The helicopter can use the lifting rope to hoist the lifting lugs 13 to hoist and transport the water rescue and salvage device. The U-shaped opening 12 is located on one side of the main frame 1 and is used to allow people who have fallen into the water to enter. During the water rescue process, it is easier for people who have fallen into the water to enter the salvage device through the U-shaped opening 12 of the main frame 1, which facilitates the salvage.

[0024] like Figure 1-2 As shown, the protective mechanism is installed in the U-shaped notch 12 of the main frame 1. The protective mechanism includes a rotating rod 2 that is rotatably installed on both sides of the U-shaped notch 12 of the main frame 1, a counterweight plate 21 fixed at the bottom of the rotating rod 2, a connecting rope 22 fixed at the top of one end of the counterweight plate 21, a pulley mechanism installed at the top of the main frame 1 for guiding and limiting the connecting rope 22, and a water-absorbing sponge 24 located at the bottom of the connecting rope 22 and at the bottom of the salvage net 11 for pulling the rotating rod 2 from a vertical state to a horizontal state through the connecting rope 22 after absorbing water and increasing weight. The counterweight plate 21 can increase the weight at the bottom of the rotating rod 2 so that when the salvage device is not in the water, the rotating rod 2 can be in a vertical state under the gravity of the counterweight plate 21.

[0025] During the salvage operation, the salvage device will enter the water. At this time, the water-absorbing sponge 24 will absorb water. After the salvage is completed, when the salvage device leaves the water, the water-absorbing sponge 24, which has gained weight from absorbing water, will leave the water and lose buoyancy. At this time, the water-absorbing sponge 24, which has gained weight, will pull the rotating rod 2 inside the U-shaped gap 12 from a vertical state to a horizontal state through the connecting rope 22. This allows the rotating rod 2 to form a barrier inside the U-shaped gap 12, making it less likely for people who fall into the water due to excessive helicopter flight attitude or swinging of the hanging rope to be thrown out through the U-shaped gap 12, thus improving safety.

[0026] like Figure 1-2 As shown, the top of the U-shaped notch 12 on both sides of the main frame 1 is fixed with a limiting plate 25 that abuts against the top of the rotating rod 2. The main frame 1 and the limiting plate 25 can limit the rotating rod 2, so that the rotating rod 2 can only rotate 90 degrees, from the vertical state to the horizontal state.

[0027] like Figure 1-2 As shown, the pulley mechanism includes a first fixed pulley 26 fixedly installed between the limiting plate 25 and the top of the main frame 1, and a second fixed pulley 27 fixedly installed at the top edge of the main frame 1. The connecting rope 22 is fitted between the top of the first fixed pulley 26 and the second fixed pulley 27. The first fixed pulley 26 and the second fixed pulley 27 can guide and limit the connecting rope 22, reduce the resistance and wear of the connecting rope 22 when it moves, and extend the service life of the connecting rope 22.

[0028] like Figure 1-2 As shown, the top of the first fixed pulley 26 and the second fixed pulley 27 are provided with a stop bar 28 for blocking and limiting the bottom connecting rope 22. The stop bar 28 can block the bottom connecting rope 22, so that the connecting rope 22 will not fall off the first fixed pulley 26 and the second fixed pulley 27.

[0029] like Figure 1-2 As shown, a connecting plate 23 is fixed between the bottom end of the connecting rope 22 and the top of the absorbent sponge 24, and the connecting plate 23 can connect the connecting rope 22 and the absorbent sponge 24.

[0030] like Figure 1 and Figure 3 As shown, a counterweight water tank 3 is fixedly installed at one end of the main frame 1 away from the U-shaped notch 12. A water inlet plug 31 is movably installed in the water inlet at the top of the counterweight water tank 3, and a drain plug 32 is movably installed in the drain outlet at the bottom of the counterweight water tank 3. By adding water to the counterweight water tank 3, the weight of the counterweight water tank 3 side of the device can be increased, and the weight on both sides of the device can be roughly balanced, improving the stability of the salvage device during transportation. The water inlet plug 31 can be removed to add water to the counterweight water tank 3 through the water inlet, and the drain plug 32 can be removed to drain water from the counterweight water tank 3 through the drain outlet, thereby adjusting the weight of the counterweight water tank 3.

[0031] It should be noted that, in use, the helicopter can use the hoisting rope to suspend the hoisting lug 13 to hoist and transport the water rescue salvage device. During the water rescue process, it is easier for people who have fallen into the water to enter the salvage device through the U-shaped opening 12 of the main frame 1, thus facilitating the salvage.

[0032] During the salvage operation, the salvage device will enter the water. At this time, the water-absorbing sponge 24 will absorb water. After the salvage is completed, when the salvage device leaves the water, the water-absorbing sponge 24, which has gained weight from absorbing water, will leave the water and lose buoyancy. At this time, the water-absorbing sponge 24, which has gained weight, will pull the rotating rod 2 inside the U-shaped gap 12 from a vertical state to a horizontal state through the connecting rope 22. This allows the rotating rod 2 to form a barrier inside the U-shaped gap 12, making it difficult for people who have fallen into the water to be thrown out through the U-shaped gap 12 due to excessive flight attitude of the helicopter or swinging of the hanging rope. This improves the safety performance of the device and reduces the fear of people who have fallen into the water during the transfer process.

[0033] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A helicopter water rescue and salvage device, comprising a main frame (1), a salvage net (11) installed at the bottom of the main frame (1), a U-shaped opening (12) provided on one side of the main frame (1) for allowing a person who has fallen into the water to enter, and a protective mechanism installed in the U-shaped opening (12) of the main frame (1), characterized in that: The protective mechanism includes a rotating rod (2) that is rotatably mounted on both sides of the U-shaped notch (12) of the main frame (1), a counterweight plate (21) fixed at the bottom of the rotating rod (2), a connecting rope (22) fixed at the top of one end of the counterweight plate (21), a pulley mechanism installed on the top of the main frame (1) for guiding and limiting the connecting rope (22), and a water-absorbing sponge (24) located at the bottom of the connecting rope (22) and at the bottom of the salvage net (11) for pulling the rotating rod (2) from a vertical state to a horizontal state through the connecting rope (22) after absorbing water and increasing weight.

2. A helicopter water rescue and salvage apparatus according to claim 1, characterised in that: The top of the U-shaped notch (12) of the main frame (1) is fixed with limiting plates (25) that abut against the top of the rotating rod (2).

3. A helicopter water rescue and salvage apparatus according to claim 2, wherein: The pulley mechanism includes a first fixed pulley (26) fixedly installed between the limit plate (25) and the top of the main frame (1), and a second fixed pulley (27) fixedly installed at the top edge of the main frame (1). The connecting rope (22) is connected between the tops of the first fixed pulley (26) and the second fixed pulley (27).

4. The helicopter water rescue and salvage device according to claim 3, characterized in that: The top of the first fixed pulley (26) and the second fixed pulley (27) are provided with a stop bar (28) for blocking and limiting the bottom connecting rope (22).

5. A helicopter-based water rescue and salvage device according to claim 1, characterized in that: The main frame (1) is fixedly provided with several lifting lugs (13) at the top, and a connecting plate (23) is fixedly provided between the bottom end of the connecting rope (22) and the top of the water-absorbing sponge (24).

6. The helicopter-based water rescue and salvage device according to claim 1, characterized in that: A counterweight water tank (3) is fixedly provided at one end of the main frame (1) away from the U-shaped notch (12). A water inlet plug (31) is movably provided in the water inlet at the top of the counterweight water tank (3), and a drain plug (32) is movably provided in the drain outlet at the bottom of the counterweight water tank (3).

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