Maritime rescue equipment

Abstract

The invention discloses marine rescue equipment, which belongs to the technical field of personal overwater safety equipment and comprises a front floating block binding mechanism serving as an inner layer and a rear floating block binding mechanism serving as an outer layer. The inner layer mechanism and the outer layer mechanism are combined through multi-point matching of the shoulders, the back and the waist, and stable closed-loop locking is formed through the crotch belt. The core innovation is that a precise and detachable mechanical linkage connection structure is arranged between the inner waistband and the outer waistband. When the equipment is lifted upwards in rescue, the structure can intelligently convert passive pulling force into active and radially inward hooping force, so that the inner waistband is automatically tightened, and the binding force between the equipment and the body of a user is greatly enhanced. Through a unique double-layer closed-loop structure and a dynamic self-locking mechanism, the rescue slippage risk is fundamentally eradicated, the structure is stable and reliable, and the safety and success rate of sea rescue are remarkably improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of personal water safety equipment, and in particular relates to an anti-falling rescue equipment with a safe structure and a dynamic self-locking function. Background Art

[0002] Personal flotation devices (PFDs), commonly known as life jackets, are essential and crucial equipment for protecting personal safety during water activities, sailing, offshore operations, and rescue operations. The core design concept of traditional life jackets is to provide sufficient buoyancy for drowning individuals, allowing them to remain afloat while awaiting rescue. These typically feature a vest-like structure, built with highly buoyant material (such as closed-cell foam), and secured with a few simple straps and buckles.

[0003] However, for a long time, these traditional life jackets have exposed several fatal design flaws in real rescue scenarios, especially in emergency rescue scenarios: 1. The risk of "fatal slippage" during the rescue process: This is the most serious and fundamental pain point in existing technologies. When rescuers (for example, from a boat or helicopter) attempt to lift a person from the water by pulling on a life jacket, the enormous, vertical upward pulling force is applied entirely to the life jacket's shoulders. Because the lower portion of a traditional life jacket is open, its structure resembles an open bag, with the person in the water as the object inside. Under this enormous pulling force, the life jacket can easily slip upward from the relatively narrow shoulders of the person in the water, causing the person to fall out of the life jacket like a cicada escaping from its shell, directly resulting in a rescue failure and even more serious injuries due to a second fall into the water or collision.

[0004] 2. Secondary injury to the rescued person: Even if the life jacket doesn't completely slip off, the immense pulling force will be concentrated in the narrow areas of the victim's armpits and shoulders. This high pressure will cause severe squeezing, potentially leading to soft tissue contusion and nerve compression, causing significant pain and additional physical damage to the already weakened or injured person.

[0005] 3. Unstable floating posture, posing a safety hazard: Traditional life jackets often do not fit well. In water, especially when there are strong winds and waves, life jackets are prone to floating or shifting, and may rise to the user's face, covering the mouth and nose, hindering breathing, which is especially dangerous for unconscious people.

[0006] 4. The inherent conflict between comfort and safety: To minimize slippage, users must tighten the straps of traditional life jackets, making them extremely stuffy, restrictive, and uncomfortable to wear. Considering that this type of equipment can be used for both military and civilian purposes, its poor comfort has led to a serious "wearing aversion" among many personnel who spend extended periods near water or at sea (such as fishermen, navy personnel, coast guard personnel, and platform workers). This has significantly reduced the rate of daily wear and created a fundamental safety hazard.

[0007] Therefore, this field urgently needs a new design that can completely eliminate the risk of slipping from a structural perspective, scientifically disperse the rescue stress, and at the same time take into account the user's safe posture and wearing comfort. Summary of the Invention

[0008] The present invention aims to overcome the aforementioned shortcomings of the prior art by providing a marine rescue device. Through its innovative double-layer binding structure, mechanically closed-loop design at key locations, and intelligently responsive dynamic self-locking mechanism, this device aims to fundamentally address the issue of life jackets slipping during the rescue and lifting process, preventing secondary injuries to the rescued, while ensuring a safe floating position and a pleasant wearing experience for those who fall into the water. This significantly improves the success rate of marine rescues and the chances of survival for the rescued.

[0009] The above technical objectives of the present invention are achieved through the following technical solutions: A marine rescue equipment, comprising: A front float binding mechanism includes a front float for providing frontal buoyancy, an inner back portion adapted to fit the user's back, and an inner shoulder strap connecting the front float and the inner back portion; the front float binding mechanism also includes a double-headed buckle provided on the front face of the front float, a chest strap extending from the inner back portion and connected to each other by the double-headed buckle, and an inner waist strap extending from the inner back portion, the ends of which can be connected to each other by snapping together so as to be wrapped around the user's waist; A rear floating block binding mechanism, comprising a rear floating block for providing rear buoyancy, an outer shoulder strap connecting the rear floating block and the front floating block and covering the inner shoulder strap, an outer backing connected to the rear floating block and covering the inner backing, and an outer waist belt extending from the outer backing; The front floating block binding mechanism serves as an inner layer, the rear floating block binding mechanism serves as an outer layer, and the outer waistband and the inner waistband are attached to each other and detachably connected.

[0010] Furthermore, a material bag is provided on the front floating block.

[0011] Furthermore, a positioning module is provided on the front floating block.

[0012] Furthermore, it also includes a crotch strap, one end of which extends from the lower part of the outer back, and the other end passes through the user's crotch and is detachably connected to the front floating block binding mechanism through a single-head buckle.

[0013] Furthermore, the outer side surface of the inner back portion is provided with a first adhesive portion, and the inner side surface of the outer back portion is provided with a second adhesive portion that cooperates with the first adhesive portion.

[0014] Furthermore, the outer shoulder strap is provided with a reflective strip.

[0015] Furthermore, the detachable connection between the inner belt and the outer belt is specifically achieved through the following structure: A positioning strip extending along the length of the inner waistband is provided on the outer side of the inner waistband, and the positioning strip provides a stable reference surface for the inner waistband; A flap is fixed to the outer side of the inner waistband through the positioning strip, the flap is arranged along the length direction of the inner waistband and extends obliquely downward at a fixed angle with the outer side of the inner waistband; A clip is provided at one end of the flap away from the inner waistband; The outer waistband is provided with an embedded strip, the shape and size of which are adapted to the clamping strip to achieve an embedded connection; When the equipment is pulled upward, the outer belt pulls the clamping strip upward through the embedded strip, causing the flap to have a deformation tendency to flip outward, and this deformation tendency generates a radially inward gathering force to bind the inner belt more tightly around the user's waist.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention ensures absolute anti-slip performance through three key mechanisms: First, the crotch strap forms the most fundamental and effective physical closed loop, fundamentally eliminating the possibility of the device slipping off the wearer. Second, the front and rear float blocks are connected by the outer straps, forming a solid shoulder-bearing structure. Most importantly, the dynamic self-locking mechanism of the inner and outer waist belts converts passive pulling force into active, enhanced tightening force during the most dangerous upward pull, thereby increasing the device's grip on the body. This completely overturns the fatal flaw of traditional life jackets, which become looser with each pull.

[0017] 2. Traditional life jackets concentrate all tension under the armpits. However, this new life jacket, through its double-layer structure and wide-area back fit, evenly distributes upward tension from "point" or "line" stress to the entire "surface" of the wearer's back and torso. This significantly reduces localized pressure and avoids secondary injuries such as crush injuries and nerve damage caused by concentrated stress.

[0018] 3. The present invention places a rear float at a critical location behind the user's neck. Regardless of whether the user is conscious or unconscious, the float acts like a life-saving pillow, forcibly supporting the user's head and tilting the face back, keeping the mouth and nose above the water. This ensures that the vital passage—the respiratory tract—is unobstructed, buying precious time for rescue.

[0019] 4. This invention successfully resolves the dilemma of traditional life jackets, which struggle to balance comfort and safety, by separating the device into an inner layer (comfort layer) and an outer layer (structural layer). The inner layer can be made of skin-friendly, breathable materials, ensuring daily wear comfort and significantly increasing user willingness to wear it. The outer layer can be constructed of the strongest and most durable materials without compromise, carrying all rescue functions and achieving dual military and civilian use. This innovative design concept makes this device both a reliable life-saving tool and a piece of everyday equipment that users will enjoy wearing for extended periods of time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the front floating block binding mechanism of the present invention; Figure 3 It is a back schematic diagram of the front floating block binding mechanism of the present invention; Figure 4 It is a schematic diagram of the overall structure of the rear floating block binding mechanism of the present invention; Figure 5 for Figure 2 A magnified view of point A; Figure 6 for Figure 4 Magnified view of point B.

[0021] The following components are included in the diagram: 1. Front float; 2. Supplies bag; 3. Positioning module; 4. Double-head buckle; 5. Single-head buckle; 6. Inner shoulder strap; 7. Inner back patch; 8. Chest strap; 9. Inner waist belt; 901. Positioning strip; 902. Turning strip; 903. Card strip; 10. First adhesive part; 11. Rear float; 12. Outer shoulder strap; 13. Reflective strip; 14. Outer back patch; 15. Second adhesive part; 16. Outer waist belt; 1601. Embedded strip; 17. Crotch strap. DETAILED DESCRIPTION

[0022] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0025] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0026] Reference Figure 1 The marine rescue equipment described in this invention utilizes a two-layer modular design, comprising an inner front buoyancy binding mechanism responsible for a comfortable fit, and an outer rear buoyancy binding mechanism responsible for structural load-bearing and core safety functions. When worn, these two layers nestle together and are connected through multiple connection points to form a highly integrated safety system.

[0027] Reference Figure 1-3The front float binding mechanism serves as the inner layer that comes into direct contact with the user. It is an inner vest structure, in which the core component is the front float 1. The internal filling material of the front float 1 can be a closed-cell polyethylene foam (EPE) with high buoyancy, flexibility, and impact resistance, and it is wrapped with skin-friendly neoprene or Lycra fabric. While ensuring comfort when in contact with the body, it provides the user with front core buoyancy to prevent the body from leaning forward. In order to solve the technical problem that it is difficult for a drowning person to access survival supplies in a weak state, a supply bag 2 is provided in the shoulder and clavicle area of ​​the front float 1, near the user's mouth. The supply bag 2 can accommodate a high-frequency survival whistle, a small signal mirror, and a retractable drinking water tube. The user does not need to use their hands, but only needs to turn their head to perform survival or water replenishment operations, which greatly increases the chance of survival of the drowning person. At the same time, in order to solve the technical problems of "difficult searching and slow positioning" in traditional rescue, the equipment is also integrated with a positioning module 3, which has a built-in positioning chip that supports multiple systems such as GPS and Beidou, and a 406MHz personal positioning beacon antenna. It also has the function of automatic activation when encountering water, and can transmit precise coordinates to the international search and rescue satellite system, thereby reducing the search range from nautical miles to meters, significantly shortening the search time.

[0028] The main components of the inner vest structure include inner straps 6 and an inner back 7. The upper end of the inner strap 6 is connected to the front float 1 and is designed to rest on the wearer's shoulders. The inner back 7 is connected to the other end of the inner strap 6, and together they conform to the wearer's back. To address the "wearing resistance" problem caused by the stuffiness of existing equipment, the lining of these two components is made of a three-dimensional mesh spacer fabric. Its three-dimensional hollow structure achieves efficient ventilation and moisture conduction, ensuring dryness and comfort for long-term wear, effectively improving the daily wear rate of the equipment. Two independent elastic nylon chest straps 8 extend from the left and right wings of the inner back 7. They are connected by a quick-release double-ended buckle 4 made of polyoxymethylene (POM) material, located on the front of the front float 1, forming a stable chest fixation structure. This securely fixes the front float to the wearer's chest to prevent it from swaying or rising in wind and waves. An inner waist belt 9, also extending from the inner back 7, is used to wrap around and initially secure the wearer's waist.

[0029] Reference Figure 1 and Figure 4The rear float binding mechanism serves as the outer layer and is the load-bearing and safety core of this equipment. The key component is the rear float 11, whose ergonomic shape is designed to precisely fill the space behind the user's neck. The buoyancy point it provides is located above and behind the center of gravity of the upper body. It can generate a righting torque, causing the head of the person who falls into the water (especially the unconscious person) to tilt back and lift the mouth and nose out of the water. This is designed to solve the problem of suffocation caused by the head tilting forward due to exhaustion or coma, thereby ensuring the patency of the respiratory tract. The outer shoulder strap 12, which is the core load-bearing component, is made of ultra-high molecular weight polyethylene (UHMWPE) fiber webbing with a high strength-to-weight ratio. It connects the rear float 11 and the front float 1, forming a "load-bearing bridge" across the shoulders, directly bearing the lifting force during rescue.

[0030] In order to maximize the probability of finding a person who has fallen into the water under any lighting conditions, the present invention adopts a visual recognition scheme that combines active and passive methods. On the one hand, a high-brightness reflective strip 13 is provided on the outer shoulder strap 12, which is the core load-bearing component and is located at the most easily observed shoulder position. The reflective strip 13 can reflect light sources such as searchlights of the rescue party at night or in low-light environments, forming a strong reflection and realizing a passive warning. On the other hand, the signal light device integrated into the positioning module 3 on the front float 1 complements this. The signal light device can actively emit a high-frequency flash signal, especially in bad weather or at night when there is no external light source, and can actively attract the attention of search and rescue personnel. By combining the passive reflection of the reflective strip 13 with the active illumination of the signal light, this equipment constructs an all-weather, long-distance visual recognition system, which greatly improves the probability of finding a person who has fallen into the water at night or in bad sea conditions, thereby winning valuable time for rapid search and rescue.

[0031] In order to firmly combine the inner and outer layers into a whole, the upper end of the outer back 14 is connected to the rear floating block 11, which covers the inner back 7 when worn. The inner side of the outer back 14 and the outer side of the inner back 7 are respectively provided with industrial-grade hook and loop fasteners that can be fitted over a large area, namely the second adhesive part 15 and the first adhesive part 10. This "surface" connection method is intended to solve the technical problems of stress concentration and structural instability in traditional equipment. It can evenly disperse the stress when the equipment is under stress and increase the shear resistance between the inner and outer layers. In order to provide a basic "bottom-up" guarantee for the entire anti-fall system, a crotch strap 17 extends from the lower part of the outer back 14 and is connected to the front floating block binding mechanism through a single-head buckle 5, forming a closed physical loop that passes under the user's crotch, "anchoring" the entire equipment to the part below the center of gravity of the human body.

[0032] In some embodiments, a dynamic self-locking connection structure is provided between the inner and outer waistbands. This structure aims to address the technical problem of traditional waistbands becoming loose or failing under tension. Its structural basis is: a positioning bar 901 is fixed to the outer side of the inner waistband 9, serving as a semi-rigid base, providing a reliable reference surface for the subsequent lever structure; a flap 902 is fixed to the inner waistband 9 via this positioning bar 901, forming a precise, downward, fixed angle with the outer side of the inner waistband; the flap terminates in an integrally formed C-section clip 903, which is matched by an insert strip 1601 on the outer waistband 16. Its dynamic response works as follows: During a rescue, an upward pulling force is transmitted to the outer waist belt 16, causing it to pull the C-shaped clamping strip 903 upward through the embedded strip 1601. Then, due to the tilted lever structure of the flap 902, the upward pulling force forces it to deform upward and outward around the fulcrum. Finally, because the waist belt is wrapped around the user's waist, this "outward flipping" tendency is limited by the waist belt's circumference, thereby converting the upward linear pulling force into a radial gathering force perpendicular to the waist belt and pointing toward the center of the body. The greater the pulling force, the stronger the inward tightening force, giving this equipment a dynamic response capability, capable of converting pulling force into an enhanced locking force in critical moments, achieving a dynamic self-locking effect that tightens with each pull.

[0033] In summary, the present invention effectively partitions and integrates comfort, buoyancy, structural load-bearing, and emergency functions through the modular design and coordinated combination of the front and rear float block binding mechanisms. The outer shoulder strap 12, the first and second adhesive portions 10 and 15 on the back, the inner and outer waist belts 9 and 16 at the waist, and the crotch strap 17 at the bottom jointly construct a comprehensive, mechanically closed-loop locking system capable of dual military and civilian use. In particular, the dynamic self-locking connection structure between the inner and outer waist belts enables the device to actively enhance locking force in critical moments, thereby comprehensively resolving various deficiencies in the prior art.

[0034] The foregoing is merely a specific embodiment of the present invention, and the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. Marine rescue equipment, characterized in that: include: A front floating block binding mechanism comprises a front floating block (1) for providing frontal buoyancy, an inner back portion (7) fitted to the back of a user, and an inner shoulder strap (6) connecting the front floating block (1) and the inner back portion (7); the front floating block binding mechanism further comprises a double-headed buckle (4) provided on the front of the front floating block (1), a chest strap (8) extending from the inner back portion (7) and connected to each other by snapping together through the double-headed buckle (4), and an inner waist belt (9) extending from the inner back portion (7) and having ends capable of being snap-connected to each other so as to be wrapped around the waist of the user; A rear floating block binding mechanism, comprising a rear floating block (11) for providing rear buoyancy, an outer shoulder strap (12) connecting the rear floating block (11) and the front floating block (1) and covering the inner shoulder strap (6), an outer back portion (14) connected to the rear floating block (11) and covering the inner back portion (7), and an outer waist belt (16) extending from the outer back portion (14); The front floating block binding mechanism serves as an inner layer, the rear floating block binding mechanism serves as an outer layer, and the outer waistband (16) and the inner waistband (9) are attached to each other and detachably connected.

2. The marine rescue equipment according to claim 1, characterized in that: A material bag (2) is provided on the front floating block (1).

3. The marine rescue equipment according to claim 1, characterized in that: A positioning module (3) is provided on the front floating block (1).

4. The marine rescue equipment according to claim 1, characterized in that: It also includes a crotch strap (17), one end of which extends from the lower part of the outer back (14), and the other end of which passes through the user's crotch and is detachably connected to the front floating block binding mechanism through a single-head buckle (5).

5. The marine rescue equipment according to claim 1, characterized in that: The outer side surface of the inner back portion (7) is provided with a first adhesive portion (10), and the inner side surface of the outer back portion (14) is provided with a second adhesive portion (15) that matches the first adhesive portion (10).

6. The marine rescue equipment according to claim 1, characterized in that: The outer shoulder strap (12) is provided with a reflective strip (13).

7. The marine rescue equipment according to claim 1, characterized in that: The detachable connection between the inner waistband (9) and the outer waistband (16) is specifically achieved through the following structure: A positioning strip (901) extending along the length direction of the inner waistband (9) is provided on the outer side of the inner waistband (9), and the positioning strip (901) provides a stable reference surface for the inner waistband (9); A flap (902) is fixed to the outer side of the inner waistband (9) through the positioning strip (901), and the flap (902) is arranged along the length direction of the inner waistband (9) and extends obliquely downward at a fixed angle with the outer side of the inner waistband (9); A clamping strip (903) is provided at one end of the flap (902) away from the inner waistband (9); The outer waistband (16) is provided with an embedding strip (1601), and the shape and size of the embedding strip (1601) are adapted to the clamping strip (903) to achieve an embedded connection; When the equipment is pulled upward, the outer belt (16) pulls the clamping strip (903) upward through the embedded strip (1601), thereby causing the flip strip (902) to have a deformation tendency to flip outward, and this deformation tendency generates a radially inward gathering force to bind the inner belt (9) more tightly around the user's waist.

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