A long-distance lifesaving thrower for flood rescue and a use method thereof

Abstract

The application relates to the technical field of flood-prevention rescue equipment, and discloses a long-distance lifesaving throwing device for flood-prevention rescue and a use method thereof, which comprises a ring body, the ring body is provided with a plurality of folds which are equiangularly distributed along the circumferential direction and are gathered towards the middle part of the ring body, and the inner wall of the fold is symmetrically provided with two groups of soft magnets which are mutually adsorbed; and the outer wall of the ring body is equiangularly provided with a plurality of micro gas cylinders which are communicated with the internal cavity of the ring body. The device is cooperated with the ring body, the soft magnets and the connecting ring, the ring body is formed with a plurality of folds which are equiangularly distributed along the circumferential direction and are gathered towards the middle part of the ring body, the two groups of soft magnets on the opposite surfaces of the fold are mutually adsorbed, the ring body is kept in a small approximately spherical folding state before being thrown, the lifesaving rope is connected through the connecting ring, the long-distance throwing and subsequent traction of the ring body are realized, the wind area and air resistance in the throwing process are reduced, and the throwing distance, flight stability and rescue range are improved.

Description

Technical Field

[0001] This invention relates to the field of flood control and rescue equipment technology, and in particular to a long-distance rescue thrower for flood control and rescue and its usage method. Background Technology

[0002] A long-distance rescue thrower for flood control and rescue is a rescue device used in flood, river, lake, and reservoir rescue environments to deliver rescue components to the vicinity of a person in the water and provide buoyancy support. Existing lifebuoys mainly include rigid lifebuoys and inflatable lifebuoys. Rigid lifebuoys are usually made of foam material and are delivered manually or using throwing equipment. Inflatable lifebuoys typically consist of a foldable airbag, a high-pressure gas cylinder, a water-entry triggering component, and a rescue rope. Before use, the airbag is folded and stored. After being thrown into the water, a water-soluble or water-sensitive triggering component is used to open the high-pressure gas cylinder, inflating the airbag. The person in the water grabs the inflated lifebuoy, and the rescuer then pulls them along with the rescue rope.

[0003] However, rigid lifebuoys have a large volume and windward area, making them susceptible to air resistance and crosswinds during throwing, resulting in insufficient throwing distance or deviation in landing point. Some inflatable lifebuoys use straps, shells, or adhesive structures to maintain their folded state, which can easily loosen during handling and throwing impacts. They may also experience local jamming when inflated and unfolded, thus affecting the lifebuoy's throwing stability, unfolding speed, and rescue reliability. Summary of the Invention

[0004] To address the shortcomings mentioned above, this invention proposes a long-distance rescue throwing device for flood control and rescue, and its usage method.

[0005] To achieve the above objectives, this application adopts the following technical solution: a long-distance rescue thrower for flood control and rescue, comprising a ring body, wherein the ring body forms multiple pleats distributed at equal angles along the circumference and converging toward the center of the ring body, and two sets of mutually adsorbing soft magnets are symmetrically arranged on the inner wall of the pleats; multiple micro-gas cylinders communicating with the internal cavity of the ring body are arranged at equal angles on the outer wall of the ring body, and a moving rod is slidably arranged at the axial position of the micro-gas cylinder, one end of the moving rod is fixed with a piston plate for sealing the venting position of the micro-gas cylinder, and a slot is opened on the moving rod, and a water-soluble pad is embedded in the slot.

[0006] Preferably, the water-soluble pad rests against the outer wall of the micro-gas cylinder in its intact state.

[0007] Preferably, the two sets of soft magnets are respectively disposed on opposite surfaces of the folds, the soft magnets are in the shape of flat arcs, and the opposite surfaces of the two sets of soft magnets have opposite magnetic poles.

[0008] Preferably, the micro gas cylinder is a high-pressure resistant alloy steel cylinder, the micro gas cylinder is installed on the ring body and connected to the inside of the ring body, the micro gas cylinder is pre-filled with compressed gas, and the other end of the moving rod is fixed with a limiting plate for limiting the moving rod's movement distance.

[0009] Preferably, the moving rod is slidably arranged along the axial direction of the micro gas cylinder, the piston plate and the limiting plate are respectively located at both ends of the moving rod, and the piston plate abuts against the vent of the micro gas cylinder.

[0010] Preferably, the slot is provided with a positioning protrusion, the water-soluble pad is provided with a positioning groove, and the positioning protrusion is truncated cone-shaped. The inner wall shape and size of the positioning groove match the positioning protrusion, and the positioning protrusion is embedded in the positioning groove.

[0011] Preferably, the soft magnet is formed by vulcanizing ferrite magnetic powder and nitrile rubber, the water-soluble pad is made of polyvinyl alcohol water-soluble material, and the ring is fixed with a connecting ring for connecting the lifeline.

[0012] A method for using a long-distance rescue throwing device for flood control and rescue includes the following steps:

[0013] S1: Connect the lifeline to the connecting ring, and fold the multiple folds of the ring towards the center of the ring so that the two sets of soft magnets attract each other, so that the ring is kept in an approximately spherical folded state, and then use a fixed-point launching device to throw the folded ring to the water area where the person who fell into the water is located.

[0014] S2: After the ring falls into the water, the water comes into contact with the water-soluble pad, causing the water-soluble pad to gradually dissolve and lose its axial restraint on the moving rod.

[0015] S3: The compressed gas in the micro gas cylinder exerts a thrust on the piston plate, causing the piston plate to drive the moving rod to move along the axis of the micro gas cylinder. The piston plate leaves the vent of the micro gas cylinder, and the compressed gas in the micro gas cylinder enters the internal cavity of the ring body.

[0016] S4: The multiple folds of the ring gradually expand under the action of compressed gas, causing the two sets of soft magnets that are attracted to each other to gradually separate until the ring unfolds into an inflatable ring and floats to the surface of the water. The person who has fallen into the water can grab the ring or put their body into the ring, and the rescuers can drag the ring with a rescue rope.

[0017] The technical effects and advantages of this invention are as follows:

[0018] In this invention, the device uses a ring, soft magnets, and connecting rings to work together to form multiple pleats along the circumference of the ring, which are distributed at equal angles and converge toward the center of the ring. The two sets of soft magnets on the opposite surfaces of the pleats attract each other, so that the ring maintains a small, approximately spherical folded state before being thrown. The lifeline is connected to the ring through the connecting ring, enabling long-distance delivery and subsequent traction of the ring. This reduces the windward area and air resistance during the throwing process, and improves the throwing distance, flight stability, and rescue range.

[0019] In this invention, the device utilizes a combination of micro-gas cylinders, a moving rod, a piston plate, a locking groove, a water-soluble pad, and a limiting plate. When not submerged in water, the water-soluble pad restricts the axial movement of the moving rod, causing the piston plate to seal the vent of the micro-gas cylinder. After submersion in water, the water dissolves the water-soluble pad, allowing the compressed gas inside the micro-gas cylinder to drive the piston plate and the moving rod. Multiple micro-gas cylinders, distributed at equal angles, inflate the ring from different positions, achieving automatic triggering and uniform deployment of the ring upon submersion. This reduces the possibility of premature deflation, localized jamming, and incomplete deployment, improving the device's triggering reliability and lifesaving response speed. Attached Figure Description

[0020] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts:

[0021] Figure 1 This is a schematic diagram of the external structure of the present invention in its collapsed and folded state;

[0022] Figure 2 This is a schematic diagram showing the location distribution of the main external structures in the collapsed and folded state of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the ring body of the present invention;

[0024] Figure 4 This is a partial cross-sectional view of the present invention;

[0025] Figure 5 This is an enlarged schematic diagram of a partial structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the moving rod structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the present invention in its unfolded state;

[0028] Figure 8 This is a schematic diagram of the protrusion and soft magnet structure in the unfolded state of the present invention.

[0029] Legend: 1. Ring body; 11. Connecting ring; 2. Micro gas cylinder; 21. Moving rod; 22. Piston plate; 23. Slot; 231. Positioning protrusion; 24. Water-soluble pad; 241. Positioning groove; 25. Limiting plate; 26. Soft magnet. Detailed Implementation

[0030] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0031] Reference Figure 1-8 As shown, the present invention provides a technical solution: a long-distance rescue thrower for flood control and rescue, comprising a ring body 1, wherein the ring body 1 has multiple equiangularly distributed folds along the circumference and converge toward the center of the ring body 1, and the inner wall of the folds is symmetrically provided with two sets of mutually adsorbing soft magnets 26; the outer wall of the ring body 1 is provided with multiple micro-gas cylinders 2 that communicate with the internal cavity of the ring body 1 at equal angles, and a moving rod 21 is slidably provided at the inner axis position of the micro-gas cylinder 2, one end of the moving rod 21 is fixed with a piston plate 22 for sealing the venting position of the micro-gas cylinder 2, and a slot 23 is provided on the moving rod 21, and a water-soluble pad 24 is embedded in the slot 23.

[0032] The adsorption effect of two sets of soft magnets 26 is used to keep the folds in a closed state, so that the ring 1 can form a small fold before being thrown, thereby reducing the windward area and air resistance of the ring 1 when it moves in the air, and improving the throwing distance and flight stability. At the same time, multiple micro gas cylinders 2 supply air to the internal cavity of the ring 1 from different positions, so that the multiple folds of the ring 1 can gradually expand and unfold after entering the water, thereby improving the uniformity of the unfolding of the ring 1.

[0033] Reference Figure 2-8 As shown in this embodiment: the water-soluble pad 24 abuts against the outer wall of the micro gas cylinder 2 in its intact state.

[0034] The water-soluble pad 24 forms an axial obstruction to the moving rod 21, keeping the moving rod 21 and piston plate 22 in the closed micro gas cylinder 2 in the venting position, thereby preventing premature venting of the micro gas cylinder 2 during storage, transportation and throwing, and improving the sealing reliability of the micro gas cylinder 2 before triggering.

[0035] The two sets of soft magnets 26 are respectively disposed on the opposite surfaces of the folds. The soft magnets 26 are flat arc-shaped, and the opposite surfaces of the two sets of soft magnets 26 have opposite magnetic poles.

[0036] The opposing surfaces of the two sets of soft magnets 26 have opposite magnetic poles, allowing adjacent folds to adhere to each other through magnetic attraction. The flat arc-shaped soft magnets 26 can conform to the curvature of the fold surface to increase the effective adsorption area of ​​the two sets of soft magnets 26, thereby improving the stability of the folded state of the ring 1 and enabling the soft magnets 26 to gradually separate with the folds when the ring 1 is inflated, reducing the possibility of local jamming of the ring 1.

[0037] The micro gas cylinder 2 is a high-pressure resistant alloy steel cylinder. The micro gas cylinder 2 is installed on the ring body 1 and is connected to the inside of the ring body 1. The micro gas cylinder 2 is pre-filled with compressed gas. The other end of the moving rod 21 is fixed with a limiting plate 25 for limiting the movement distance of the moving rod 21.

[0038] The micro gas cylinder 2 can stably store compressed gas, and through the communication between the micro gas cylinder 2 and the inside of the ring body 1, the compressed gas can be directly delivered to the inside of the ring body 1 after the micro gas cylinder 2 is opened; the limiting plate 25 can limit the movement distance of the moving rod 21 when the moving rod 21 moves axially, thereby preventing the moving rod 21 from detaching from the micro gas cylinder 2 and improving the safety and stability of the gas release process of the micro gas cylinder 2.

[0039] The moving rod 21 is slidably arranged along the axial direction of the micro gas cylinder 2. The piston plate 22 and the limiting plate 25 are respectively located at both ends of the moving rod 21. The piston plate 22 abuts against the vent of the micro gas cylinder 2.

[0040] The compressed gas in the micro gas cylinder 2 can exert an axial thrust on the piston plate 22; after the water-soluble pad 24 loses its limiting function, the piston plate 22 drives the moving rod 21 to move along the axial direction and leave the vent of the micro gas cylinder 2, so that the compressed gas enters the interior of the ring body 1, and the limiting plate 25 restricts the final position of the moving rod 21, thereby forming a stable water-triggered venting process.

[0041] The slot 23 is provided with a positioning protrusion 231, and the water-soluble pad 24 is provided with a positioning groove 241. The positioning protrusion 231 is truncated cone-shaped, and the inner wall shape and size of the positioning groove 241 match the positioning protrusion 231. The positioning protrusion 231 is embedded in the positioning groove 241.

[0042] The frustum-shaped positioning protrusion 231 is embedded in the positioning groove 241 that matches its shape and size, which positions and holds the water-soluble pad 24, so that the water-soluble pad 24 can be stably embedded in the slot 23, thereby reducing the possibility of the water-soluble pad 24 falling off or shifting under the impact of handling, vibration and throwing, and ensuring the limiting effect of the water-soluble pad 24 on the moving rod 21 and the consistency of water entry triggering.

[0043] Reference Figure 1-8As shown in this embodiment: the soft magnet 26 is formed by vulcanization of ferrite magnetic powder and nitrile rubber composite; the water-soluble pad 24 is made of polyvinyl alcohol water-soluble material; and a connecting ring 11 for connecting the lifeline is fixed on the ring body 1.

[0044] The soft magnet 26 has both magnetic attraction and bending deformation capabilities, thus adapting to the folding and inflation of the ring 1; the water-soluble pad 24 is made of polyvinyl alcohol water-soluble material, so that the water-soluble pad 24 maintains the limiting effect on the moving rod 21 in the dry state, and gradually dissolves after contact with water, so as to realize the automatic deflation of the micro gas cylinder 2 when it enters the water; the rescue rope is connected by the connecting ring 11, so that the rescuer can drag the ring 1 after it is unfolded and grabbed by the person who fell into the water, thus completing the long-distance traction rescue of the person who fell into the water.

[0045] A method for using a long-distance rescue throwing device for flood control and rescue includes the following steps:

[0046] S1: Connect the lifeline to the connecting ring 11. The multiple folds of the ring 1 are gathered toward the center of the ring 1, so that the two sets of soft magnets 26 attract each other, so that the ring 1 is kept in an approximately spherical folded state. The folded ring 1 is then thrown to the water area where the person who fell into the water is located using a fixed-point throwing device.

[0047] S2: After the ring 1 falls into the water, the water comes into contact with the water-soluble pad 24, causing the water-soluble pad 24 to gradually dissolve, and the water-soluble pad 24 loses its axial restraint effect on the moving rod 21.

[0048] S3: The compressed gas in the micro gas cylinder 2 exerts a thrust on the piston plate 22, causing the piston plate 22 to drive the moving rod 21 to move along the axis of the micro gas cylinder 2. The piston plate 22 leaves the vent of the micro gas cylinder 2, and the compressed gas in the micro gas cylinder 2 enters the internal cavity of the ring body 1.

[0049] S4: The multiple folds of the ring 1 gradually expand under the action of compressed gas, causing the two sets of soft magnets 26 that are attracted to each other to gradually separate until the ring 1 unfolds into an inflatable ring state and floats to the surface of the water. The person who fell into the water grabs the ring 1 or puts his / her body into the ring 1, and the rescuer drags the ring 1 with the lifeline.

[0050] The specific operation of the present invention is as follows: First, the ring 1 forms multiple pleats with equal angles along the circumference in the uninflated state. Each pleat is gathered towards the middle of the ring 1, so that the ring 1 forms an approximately spherical folded state. The pleated parts are attracted to each other by two sets of symmetrically arranged soft magnets 26 to maintain the folded shape of the ring 1. The connecting ring 11 is connected to the lifeline. The folded ring 1 is thrown towards the person who has fallen into the water by the thrower.

[0051] Secondly, the micro gas cylinders 2 are spaced apart along the circumference of the ring body 1. The micro gas cylinders 2 are specifically high-pressure resistant alloy steel cylinders, which are pre-filled with compressed gas. The micro gas cylinders 2 and the ring body 1 are connected by a docking component. The moving rod 21 is slidably installed at the inner axis position of the micro gas cylinder 2. The piston plate 22 is fixed to one end of the moving rod 21 and closes the gas release position of the micro gas cylinder 2. The limiting plate 25 is fixed to the other end of the moving rod 21 and limits the movement distance of the moving rod 21 to prevent it from falling off. The water-soluble pad 24 is embedded in the slot 23, and the positioning protrusion 231 cooperates with the positioning groove 241 to limit the water-soluble pad 24 from falling off or shifting relative to the slot 23.

[0052] The positioning protrusion 231 is frustoconical, and the inner wall shape and size of the positioning groove 241 match the positioning protrusion 231.

[0053] When the ring body 1 is not submerged in water, the water-soluble pad 24 remains intact. The part of the water-soluble pad 24 that extends out of the slot 23 abuts against the micro gas bottle 2 to restrict the movement of the moving rod 21 along its axial direction, so that the piston plate 22 is kept in the closed position of the micro gas bottle 2, thereby keeping the compressed gas in the micro gas bottle 2 in a sealed state.

[0054] After the folded ring 1 falls into the water, the water comes into contact with the water-soluble pad 24. The water-soluble pad 24 absorbs water and gradually dissolves, reducing the structural strength and limiting ability of the water-soluble pad 24 until the water-soluble pad 24 loses its limiting effect on the moving rod 21.

[0055] Next, the compressed gas in the micro gas cylinder 2 exerts a thrust on the piston plate 22, causing the piston plate 22 to drive the moving rod 21 to move axially. The piston plate 22 leaves the closed position of the micro gas cylinder 2, and the compressed gas in the micro gas cylinder 2 enters the interior of the ring body 1. Multiple micro gas cylinders 2 fill the interior of the ring body 1 from different positions of the ring body 1, causing multiple folded parts of the ring body 1 to gradually expand.

[0056] Immediately afterwards, as the internal pressure of the ring 1 increases, the folded parts are subjected to outward expansion force, and the mutually attracted soft magnets 26 gradually separate, so that the ring 1 returns to an inflated ring state. The person who fell into the water can grab the ring 1 or put their body into the ring 1, and the rescuers can drag the ring 1 by the lifeline connected to the connecting ring 11.

[0057] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A long-distance rescue throwing device for flood control and rescue, comprising a ring (1), characterized in that: The ring (1) has multiple pleats distributed at equal angles along the circumference and converging toward the center of the ring (1), and the inner wall of the pleats is symmetrically provided with two sets of mutually adsorbing soft magnets (26); the outer wall of the ring (1) is provided with multiple micro gas bottles (2) that communicate with the internal cavity of the ring (1) at equal angles, and a moving rod (21) is slidably provided at the inner axis position of the micro gas bottle (2), and a piston plate (22) for sealing the gas release position of the micro gas bottle (2) is fixed at one end of the moving rod (21), and a slot (23) is provided on the moving rod (21), and a water-soluble pad (24) is embedded in the slot (23).

2. The long-distance rescue throwing device for flood control and rescue according to claim 1, characterized in that: The water-soluble pad (24) abuts against the outer wall of the micro gas cylinder (2) in its intact state.

3. The long-distance rescue throwing device for flood control and rescue according to claim 1, characterized in that: Two sets of soft magnets (26) are respectively disposed on opposite surfaces of the folds. The soft magnets (26) are flat arc-shaped, and the opposite surfaces of the two sets of soft magnets (26) have opposite magnetic poles.

4. A long-distance rescue throwing device for flood control and rescue according to claim 1, characterized in that: The micro gas cylinder (2) is a high-pressure resistant alloy steel cylinder. The micro gas cylinder (2) is installed on the ring body (1) and connected to the inside of the ring body (1). The micro gas cylinder (2) is pre-filled with compressed gas. The other end of the moving rod (21) is fixed with a limiting plate (25) for limiting the movement distance of the moving rod (21).

5. A long-distance rescue throwing device for flood control and rescue according to claim 1, characterized in that: The moving rod (21) is slidably arranged along the axis of the micro gas bottle (2), the piston plate (22) and the limiting plate (25) are respectively located at both ends of the moving rod (21), and the piston plate (22) abuts against the vent of the micro gas bottle (2).

6. A long-distance rescue thrower for flood control and rescue according to claim 1, characterized in that: The slot (23) is provided with a positioning protrusion (231), and the water-soluble pad (24) is provided with a positioning groove (241). The positioning protrusion (231) is truncated cone-shaped. The inner wall shape and size of the positioning groove (241) match the positioning protrusion (231), and the positioning protrusion (231) is embedded in the positioning groove (241).

7. A long-distance rescue throwing device for flood control and rescue according to claim 1, characterized in that: The soft magnet (26) is formed by vulcanization of ferrite magnetic powder and nitrile rubber, the water-soluble pad (24) is made of polyvinyl alcohol water-soluble material, and the ring (1) is fixed with a connecting ring (11) for connecting the lifeline.

8. The method of using the long-distance rescue thrower for flood control and rescue as described in any one of claims 1 to 7, characterized in that, Includes the following steps: S1: Connect the lifeline to the connecting ring (11), and gather the multiple folds of the ring (1) toward the middle of the ring (1) so that the two sets of soft magnets (26) attract each other so that the ring (1) maintains an approximately spherical folded state. Then, use a fixed-point throwing device to throw the folded ring (1) to the water area where the person who fell into the water is located. S2: After the ring (1) falls into the water, the water comes into contact with the water-soluble pad (24), causing the water-soluble pad (24) to gradually dissolve and the water-soluble pad (24) to lose its axial restraint on the moving rod (21); S3: The compressed gas in the micro gas bottle (2) exerts a thrust on the piston plate (22), causing the piston plate (22) to drive the moving rod (21) to move along the axis of the micro gas bottle (2). The piston plate (22) leaves the vent of the micro gas bottle (2), and the compressed gas in the micro gas bottle (2) enters the internal cavity of the ring body (1). S4: The multiple folds of the ring (1) gradually expand under the action of compressed gas, causing the two sets of soft magnets (26) that are attracted to each other to gradually separate until the ring (1) unfolds into an inflatable ring state and floats to the surface of the water. The person who falls into the water grabs the ring (1) or puts his body into the ring (1), and the rescuer drags the ring (1) with the lifeline.

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