A life raft glass reinforced plastic hull

Abstract

The utility model discloses a life raft glass steel casing, including casing main body, the outer wall fixed mounting of casing main body upper portion has the anticollision buffer strip, and its inside forms the hollow cavity, is used for buffering the impact of collision, the bottom surface of casing main body inside is bonded and has the rubber antiskid pad that is laid in the seat interval walking area, to prevent the passenger to slip down. The wall portion of casing main body is constituted by glass steel composite layer, and the composite layer includes the outer surface layer as the gel coat layer, the structural layer that is composed of two layers of glass fiber square cloth and the inner surface layer as the glass fiber short cut felt layer in proper order from outside to inside. The utility model discloses through the synergic design of anticollision, antiskid and composite layer structure, has effectively promoted the impact resistance of life raft, internal security and overall structure strength, has provided the all -round safety guarantee for the passenger.

Description

Technical Field

[0001] This utility model relates to the field of fiberglass life raft technology, specifically to a fiberglass shell for a life raft. Background Technology

[0002] Life rafts are essential life-saving equipment for ships and offshore platforms, and the performance of their hulls directly affects the safety of people in distress. Traditional life raft hulls are mainly divided into two categories: inflatable soft rafts and rigid hulls. Among them, fiberglass (glass fiber reinforced plastic) is widely used in the manufacture of rigid life raft hulls due to its high strength, corrosion resistance, and ease of molding.

[0003] However, during actual production and application, the applicant discovered that the existing fiberglass life raft hulls still have some structural defects that urgently need improvement: First, existing fiberglass life rafts typically lack specially designed external cushioning and protective structures. When used in rough seas or during deployment, retrieval, or assembly operations, the life raft is highly susceptible to collisions with the mother ship, other life rafts, or floating objects. This impact force acts directly on the hull, causing damage to the gel coat layer, affecting aesthetics and corrosion resistance, or even cracking or rupturing the fiberglass base layer, threatening the raft's watertightness and structural integrity, and ultimately endangering the safety of the occupants.

[0004] Secondly, the internal functional design of the hull is inadequate. The bottom surface of the life raft can easily become slippery when it comes into contact with water or when the occupants' feet are wet, increasing the risk of slipping and falling when moving inside the raft.

[0005] Furthermore, the fiberglass laminate structure that constitutes the shell body still has room for optimization. If the conventional fiberglass shell laminate structure is not designed properly, it may have problems such as: insufficient weather resistance and corrosion resistance of the outer surface; sufficient overall structural strength and rigidity but poor toughness or impact resistance; or rough inner surface that is easy to scratch the occupants due to exposed glass fibers.

[0006] Therefore, we propose a fiberglass shell for a life raft. Utility Model Content

[0007] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a fiberglass shell for a life raft. Through the synergistic effect of anti-collision strips, anti-slip pads, and a composite layer structure, it provides comprehensive safety protection for the life raft and can effectively solve the problems in the background technology.

[0008] (II) Technical Solution To achieve the above objectives, the technical solution adopted by this utility model is as follows: a fiberglass shell for a life raft, comprising a shell body, wherein an anti-collision buffer strip is fixedly installed on the outer wall of the upper part of the shell body; a rubber anti-slip pad is fixedly bonded to the bottom surface inside the shell body; the wall of the shell body is composed of a fiberglass composite layer, wherein the fiberglass composite layer comprises an outer surface layer, a structural layer and an inner surface layer from the outside to the inside.

[0009] Preferably, the outer surface layer is a gel coat layer with a thickness of 0.3 mm to 0.5 mm.

[0010] Preferably, the structural layer is composed of two 0.4mm thick glass fiber woven fabric layers.

[0011] Preferably, the inner surface layer is a chopped strand mat layer of glass fiber with a thickness of 0.8 mm to 1.2 mm.

[0012] Preferably, the housing body has a seat inside, and the rubber anti-slip mat is laid in the walking area between the seats.

[0013] Preferably, the anti-collision buffer strip has a hollow cavity inside.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides a fiberglass shell for a life raft, which has the following advantages: 1. This type of life raft fiberglass shell integrates anti-collision buffer strips, rubber anti-slip pads, and a specific fiberglass composite layer structure into a single design, thereby improving the overall performance of the life raft shell. The three components work together to ensure the safety of the occupants from three core dimensions: external impact resistance, internal anti-slip, and body strength, overcoming the shortcomings of traditional shells with only one function.

[0015] 2. The fiberglass shell of this life raft has anti-collision buffer strips fixedly installed on the upper outer wall of the shell and its internal hollow cavity, which improves the energy absorption capacity. When the life raft is involved in a collision, it can effectively disperse and absorb the impact energy through structural deformation, reduce the risk of shell body breakage, and improve the life raft's survivability in harsh sea conditions.

[0016] 3. The fiberglass shell of this life raft comprises, from the outside to the inside, an outer surface layer (gel coat layer), a structural layer (two layers of fiberglass woven fabric), and an inner surface layer (fiberglass chopped strand mat layer); the outer surface layer (0.3mm-0.5mm gel coat layer): provides excellent weather resistance, seawater corrosion resistance, and abrasion resistance, protects the internal structure, and extends the life of the shell; the structural layer (two layers of 0.4mm fiberglass woven fabric): constitutes the "skeleton" of the shell, giving it extremely high strength and rigidity, ensuring that it can withstand greater water pressure and external loads; the inner surface layer (0.8mm-1.2mm fiberglass chopped strand mat layer): forms a resin-rich, smooth, and sealed inner surface, preventing exposed internal fiberglass from injuring personnel and improving safety and comfort during use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a fiberglass shell for a life raft according to this utility model.

[0018] Figure 2 This utility model relates to a fiberglass shell for a life raft. Figure 1 A schematic diagram of the structure after the rubber anti-slip pad has been removed.

[0019] Figure 3 This is a side view cross-sectional schematic diagram of the fiberglass composite layer in the fiberglass shell of a life raft according to the present invention.

[0020] Figure 4 This is a partial cross-sectional view of the anti-collision buffer strip in the fiberglass shell of a life raft according to this utility model.

[0021] In the diagram: 1. Main body of the shell; 2. Rubber anti-slip pad; 3. Anti-collision buffer strip; 4. Structural layer; 5. Outer surface layer; 6. Inner surface layer; 7. Hollow cavity. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figure 1-4 As shown, this utility model provides a fiberglass shell for a life raft, including a shell body 1. A collision buffer strip 3 is fixedly installed on the upper outer wall of the shell body 1. The collision buffer strip 3 is arranged circumferentially around the shell and is used to absorb impact energy and reduce the risk of shell damage when the life raft collides with other objects. A hollow cavity 7 is formed inside the collision buffer strip 3 (see...). Figure 4 The hollow structure further enhances its buffering and energy absorption effect.

[0024] A layer of rubber anti-slip mat 2 is fixedly laid on the bottom surface inside the main body 1 by adhesive bonding. This rubber anti-slip mat 2 covers the walking area between seats, effectively improving the safety of occupants walking in wet and slippery environments and preventing slipping.

[0025] The wall of the main body 1 is composed of a fiberglass composite layer, which, from the outside to the inside, includes an outer surface layer 5, a structural layer 4, and an inner surface layer 6 (see [link]). Figure 3 ). Specifically: The outer surface layer 5 is a gel coat layer with a thickness controlled between 0.3mm and 0.5mm. It has good weather resistance, seawater corrosion resistance and surface gloss, effectively protecting the internal structure from external environmental erosion. Structural layer 4 is composed of two 0.4mm thick glass fiber woven fabric layers, which gives the shell high mechanical strength and rigidity, ensuring that it can maintain structural integrity under complex sea conditions; The inner surface layer 6 is a chopped strand mat layer of glass fiber with a thickness between 0.8 mm and 1.2 mm. This layer has a dense structure and a smooth surface, which effectively prevents the glass fiber from being exposed, avoids scratching the occupants, and improves the safety and comfort of use.

[0026] In this embodiment, the housing body 1 has a seat inside, and a rubber anti-slip mat 2 is laid in the walking area between the seats.

[0027] This invention achieves comprehensive optimization of the life raft hull in terms of impact resistance, anti-slip properties, and structural strength through the coordinated design of anti-collision buffer strips, rubber anti-slip pads, and multi-layer composite fiberglass structures, thereby improving the safety performance and service life of the life raft in harsh sea conditions.

[0028] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A fiberglass shell for a life raft, comprising a shell body (1), characterized in that: The outer wall of the upper part of the shell body (1) is fixedly installed with anti-collision buffer strip (3); the bottom surface inside the shell body (1) is fixed with rubber anti-slip pad (2) by adhesive bonding; the wall of the shell body (1) is composed of fiberglass composite layer, which includes an outer surface layer (5), a structural layer (4) and an inner surface layer (6) from the outside to the inside.

2. The fiberglass shell of a life raft according to claim 1, characterized in that: The outer surface layer (5) is a gel coat layer with a thickness of 0.3 mm to 0.5 mm.

3. A fiberglass hull for a life raft according to claim 2, wherein: The structural layer (4) is composed of two layers of 0.4 mm thick glass fiber woven fabric.

4. A fiberglass hull for a life raft according to claim 3, wherein: The inner surface layer (6) is a chopped strand mat layer of glass fiber with a thickness of 0.8 mm to 1.2 mm.

5. The fiberglass shell of a life raft according to claim 1, characterized in that: The housing body (1) has a seat inside, and the rubber anti-slip mat (2) is laid in the walking area between the seats.

6. A fiberglass hull for liferafts according to claim 1, characterized in that: The anti-collision buffer strip (3) has a hollow cavity (7) inside.

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