Buoyancy bag folding and self-unfolding structure

Abstract

The utility model discloses a buoyancy bag folding and self-unfolding structure which comprises a storage frame and a buoyancy bag arranged in the storage frame, the buoyancy bag comprises a middle part and movable parts at the two ends of the middle part, a winding part used for synchronously winding the movable parts at the two ends of the buoyancy bag is arranged in the storage frame, and the buoyancy bag can be bidirectionally and synchronously unfolded when inflated. The winding component comprises two sets of winding drums, constant-speed reverse linkage is achieved through a gear transmission mechanism, and winding can be driven through a motor or a handle. The storage rack is provided with accessory structures such as a guide side plate, an elastic binding belt and a protective blocking belt capable of being rolled up, and the folding and unfolding guiding, pressing and protecting performance is improved. The buoyancy bag can be rapidly and evenly unfolded in a compact storage state, the structure is stable, operation is easy and convenient, and the buoyancy bag unfolding device is suitable for occasions with high space and time requirements such as small boats and emergency rescue.

Description

Technical Field

[0001] This utility model relates to the field of floating rescue and water protection equipment, specifically to a folding and self-unfolding structure for a buoyancy bag. Background Technology

[0002] Among existing floating devices, buoyancy bags are typically made of multi-layered rubber or synthetic fiber film materials. They rely on inflation to generate buoyancy and are used in scenarios such as personal rescue, cargo floating, and marine operations. Traditional buoyancy bags are also widely used in marine rescue and underwater salvage. However, buoyancy bags used for large salvage operations are too large to be suitable for small boats or lifeboats with limited space and load capacity. They need to be compactly packed before use for storage and transportation.

[0003] Current methods for storing buoyancy bags typically involve single-tube winding, often relying on manual handle operation. This method releases air only on one side during inflation, leading to uneven stress on both ends and a tendency for the bag to tip over. Furthermore, when the unexpanded side remains submerged due to the tight winding, it is prone to jamming in poor water quality (containing silt and fine particles), and may even cause material fatigue or breakage under continuous air supply. In addition, the rapid storage of buoyancy bags after use remains a problem that the industry is still working to solve.

[0004] Therefore, there is an urgent need to design a folding and self-unfolding structure for buoyancy bags to meet the current needs of floating rescue and water protection equipment. Utility Model Content

[0005] The purpose of this invention is to provide a folding and self-unfolding structure for a buoyancy bag. This structure can automatically unfold the buoyancy bag during the inflation process, while ensuring the synchronicity and stability of the unfolding process, thereby improving the emergency response speed of the buoyancy device.

[0006] The technical solution adopted by this utility model to solve the above problems is: a folding and self-unfolding structure for a buoyancy bag, including a storage frame and a buoyancy bag set in the storage frame. The buoyancy bag includes a middle part and movable parts set at both ends of the middle part. The storage frame is also provided with a winding component for synchronously winding the movable parts at both ends of the buoyancy bag onto it. After the buoyancy bag is inflated, the movable parts at both ends are synchronously released from both sides of the winding component.

[0007] Preferably, the winding component includes two sets of drums, which are rotatably disposed in the storage rack, and their two ends are respectively connected and fixed to the two ends of the buoyancy bag movable part through a set of tensioning belts. Each set of drums is axially fixed with a handle that drives its rotation, and a gear transmission mechanism is provided between the two sets of drums to drive them to rotate in opposite directions at the same speed.

[0008] Preferably, the storage rack is provided with a set of base plates and two sets of end plates. Two sets of rollers are rotatably arranged between the two sets of end plates, and a drive motor is fixedly arranged on the end plate away from the gear transmission mechanism. The shaft of the drive motor is connected to the roller shaft that is not connected to the handle.

[0009] Preferably, the storage rack has a baffle strip on top, and one end of the storage rack has a storage component for winding the baffle strip. The storage component includes a storage base and a storage tube rotatably disposed in the storage base. The two ends of the storage tube are elastically rotatably connected to the storage base by a coil spring. The other end of the storage rack has a fixing ring, and the end of the baffle strip has a fixing hook that is adapted to connect with the fixing ring.

[0010] Preferably, the storage rack has several elastic straps arranged in pairs on both sides, and each pair of straps is connected and fixed to each other by buckles.

[0011] Preferably, the storage rack has two sets of guide side plates arranged diagonally on both sides, and the two ends of the guide side plates are provided with limiting folds, so that the buoyancy bag is always located between the two sets of limiting folds when it is unfolded and stored.

[0012] Compared with the prior art, this utility model has the following advantages and effects:

[0013] This invention achieves simultaneous storage and unfolding of the movable parts at both ends of the buoyancy bag by setting up a winding component and a gear transmission mechanism, effectively avoiding the unbalanced unfolding problem caused by the single-sided release of traditional buoyancy bags, and improving the stability and safety during deployment; the automatic unfolding and rewinding operation assisted by the drive motor reduces manpower input and improves emergency response efficiency; the use of tension belts and guide side plates ensures that the path of the buoyancy bag is controlled and does not get stuck during the storage and unfolding process; the coordinated use of elastic restraint belts and protective guard belts provides stable protection in the stored state and prevents loosening and scattering during transportation. Attached Figure Description

[0014] Figure 1 This is a perspective view of a folding and self-unfolding structure of a buoyancy bag according to an embodiment of this utility model.

[0015] Figure 2 This is a cross-sectional view of a folding and self-unfolding structure of a buoyancy bag according to an embodiment of this utility model.

[0016] Figure 3 This is a partial cross-sectional view of the storage component in an embodiment of this utility model.

[0017] Attached Figure Numbers: Storage Rack 11, Buoyancy Bag 12, Middle Section 13, Movable Section 14, Winding Component 15, Roller 21, Tensioning Band 22, Handle 23, Gear Transmission Mechanism 24, Limiting Head 25, Base Plate 26, End Plate 27, Drive Motor 28, Baffle Band 31, Storage Component 32, Storage Seat 33, Storage Tube 34, Coil Spring 35, Fixing Ring 36, Fixing Hook 37, Restraint Band 41, Buckle 42, Guide Side Plate 43, Limiting Folded Edge 44. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0019] Example: See Figures 1-3 In this embodiment, a folding self-deploying structure for a buoyancy bag 12 is disclosed. Specifically, it is used as a lifesaving flotation device on small boats or lifeboats, enabling rapid automatic deployment and balanced unfolding in a compact storage state. Specifically, it includes a storage frame 11 and a buoyancy bag 12 disposed within the storage frame 11. The buoyancy bag 12 includes a central portion 13 and movable portions 14 disposed at both ends of the central portion 13. The storage frame 11 also includes a winding component 15 for simultaneously winding the movable portions 14 of the buoyancy bag 12 onto it. After the buoyancy bag 12 is inflated, the movable portions 14 at both ends are simultaneously released from both sides of the winding component 15.

[0020] Specifically, in this embodiment, the present invention uses the winding component 15 to drive the buoyancy bag 12 to be simultaneously stored and expanded during inflation, thus avoiding the buoyancy imbalance of the buoyancy bag 12 caused by the inflated and deflated states of the two ends of the buoyancy bag 12 during traditional unidirectional storage or expansion, which leads to the buoyancy bag 12 tilting. Simultaneously, the winding component 15 drives the buoyancy bag 12 to be stored and expanded bidirectionally, which effectively shortens the storage and deployment time compared to traditional unidirectional storage or expansion methods, improving the deployment efficiency of the buoyancy bag 12 and making it suitable for emergency scenarios requiring rapid rescue.

[0021] The winding component 15 includes two sets of drums 21, which are rotatably mounted within the storage rack 11. Each drum 21 is connected and fixed to both ends of the movable part 14 of the buoyancy bag 12 via a tension band 22. Each set of drums 21 is axially connected to a handle 23 that drives its rotation. A gear transmission mechanism 24 is provided between the two sets of drums 21 to drive them to rotate at the same speed in opposite directions. The gear transmission mechanism 24 includes two sets of gears respectively located at the ends of the two sets of drums 21. The two sets of gears have the same number of teeth and mesh with each other. When either set of drums 21 is driven by the handle 23, the gear transmission mechanism 24 drives the side gear of the opposite drum 21 in the opposite direction, achieving strict equal-speed reverse linkage between the two sets of drums 21. The tension band 22 connecting each set of drums 21 and the movable part 14 of the buoyancy bag 12 is made of elastic polyurethane, neoprene, or similar materials. The end of the tension band 22 is connected to the surface of the drum 21 via a metal limiting head 25.

[0022] The storage rack 11 is provided with a base plate 26 and two end plates 27. Two sets of rollers 21 are rotatably disposed between the two sets of end plates 27. A drive motor 28 is fixedly disposed on the end plate 27 away from the gear transmission mechanism 24. The shaft of the drive motor 28 is shaft-connected to the roller 21 that is not connected to the handle 23. The drive motor 28 is a conventional waterproof DC motor.

[0023] The storage rack 11 has a baffle strap 31 on top, and one end of the storage rack 11 has a storage component 32 for winding and storing the baffle strap 31. The storage component 32 includes a storage base 33 and a storage cylinder 34 rotatably disposed within the storage base 33. The two ends of the storage cylinder 34 are elastically rotatably connected to the storage base 33 via coil springs 35. The other end of the storage rack 11 has a fixing ring 36, and the end of the baffle strap 31 has a fixing hook 37 that is adapted to connect with the fixing ring 36. When storing, the elastic preload of the coil spring 35 drives the storage cylinder 34 to rotate, causing the baffle strap 31 to be wound around it and retracted. After the baffle strap 31 is fully retracted, the coil spring 35 still maintains a slight tension to ensure the stability of the baffle strap 31 after retraction. When unfolding, the operator only needs to pull the free section of the baffle strap 31 to hook the fixing hook 37 onto the fixing ring 36 to achieve the fixation of the baffle strap 31 after unfolding. The baffle 31 covers the top of the storage rack 11, providing dust protection and other protection for the buoyancy bag 12 in the storage rack 11.

[0024] The storage rack 11 has several elastic restraint straps 41 arranged in pairs on both sides, and each pair of restraint straps 41 is connected and fixed to each other by buckles 42. When the buoyancy bag 12 is not in use, the restraint straps 41 can press the buoyancy bag 12 tightly inside the storage rack 11, and together with the retaining straps 31, it can prevent the buoyancy bag 12 from loosening and falling apart due to vibration during transportation. When in use, the restraint of the buoyancy bag 12 can be released by unfastening the buckles 42.

[0025] The storage rack 11 has two sets of guide side plates 43 obliquely arranged on both sides, and the two ends of the guide side plates 43 are provided with limiting flanges 44. Whether in the storage or unfolding stage, the edge of the buoyancy bag 12 is always between the two sets of limiting flanges 44, and slides along its surface under the guidance of the guide side plates 43, guiding and correcting the storage and unfolding of the buoyancy bag 12, significantly reducing the risk of jamming.

[0026] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A float bag folding self-deploying structure, comprising a storage frame and a float bag arranged in the storage frame, characterized in that: The buoyancy bag comprises a middle part and movable parts arranged at both ends of the middle part, and a winding part is arranged in the storage frame to wind the movable parts of the buoyancy bag, and the movable parts of the buoyancy bag are released from the winding part after the buoyancy bag is inflated.

2. A self-inflating structure according to claim 1, wherein: The winding part comprises two groups of winding drums, the winding drums are arranged in the storage frame and are connected with the movable parts of the buoyancy bag through a group of tension belts, and a handle is arranged on the shaft of each group of winding drums to drive the winding drums to rotate.

3. A self-inflating structure according to claim 2, wherein: The storage frame is provided with a group of bottom plates and two groups of end plates, the winding drums are arranged between the two groups of end plates, and a driving motor is arranged on the end plate away from the gear transmission mechanism, and the shaft of the driving motor is connected with the winding drum shaft without the handle.

4. A self-inflating structure according to claim 1, wherein: A blocking belt is arranged above the storage frame, and a storage part is arranged at one end of the storage frame to wind the blocking belt, the storage part comprises a storage seat and a storage drum arranged in the storage seat, the two ends of the storage drum are elastically connected with the storage seat through a winding spring, and a fixing ring is arranged at the other end of the storage frame, and the end of the blocking belt is provided with a fixing hook matched with the fixing ring.

5. A self-inflating structure according to claim 1, wherein: A plurality of elastic binding belts are arranged on the two sides of the storage frame, and each pair of binding belts are connected and fixed with each other through buckles.

6. A self-inflating folded buoyancy bag structure according to claim 1, wherein: Two groups of guide side plates are arranged on the two sides of the storage frame, the two ends of the guide side plates are provided with limiting flanges, and the buoyancy bag is always located between the two groups of limiting flanges when the buoyancy bag is unfolded and stored.

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