The present invention relates to a boat with an improved buoyant body, comprising: a buoyant body, which is an U-shaped tube, consisted of a cladding and foam material filled therein; a bottom plate, set on the bottom of the buoyant body; a tail plate, set at the rear of the buoyant body and the bottom plate; wherein the cladding of the buoyant body is consisted of an inner layer and two outer layers, cladding the said inner layer; wherein the inner layer is a net, while the outer layers are sheets; thereby it is achieved, that the buoyant body possesses the features of low weight, high strength and high friction resistance.

According to the present invention, there is provided a ship having an anti-sinking and anti-capsize device for emergency, which, in an emergency situation that may be caused by load or loss of buoyancy attributable to flooding, can continuously maintain the state of floating on the water by generating buoyancy inside and below a lower hull, and can prevent the ship from being tilted to one side or being completely capsized by maintaining the balance of the ship, thereby preventing a deadly accident that may occur in an emergency, such as a ship sinking accident, and also facilitating rescue operations.

According to the present invention, there is provided a ship having an anti-sinking and anti-capsize device for emergency, which, in an emergency situation that may be caused by load or loss of buoyancy attributable to flooding, can continuously maintain the state of floating on the water by generating buoyancy inside and below a lower hull, and can prevent the ship from being tilted to one side or being completely capsized by maintaining the balance of the ship, thereby preventing a deadly accident that may occur in an emergency, such as a ship sinking accident, and also facilitating rescue operations.

A nonlimiting example of a yacht preserver includes a handle, a container at an end of the handle, and an inflator device connected to an inflatable bladder. In this nonlimiting example, the inflator device includes a gas canister that is configured to deliver gas to inflate the bladder upon activation. The yacht preserver may be used to seal an opening of a yacht by placing the uninflated bladder near the opening in the yacht and activating the inflator device allowing the bladder to expand to seal the opening.

A nonlimiting example of a yacht preserver includes a handle, a container at an end of the handle, and an inflator device connected to an inflatable bladder. In this nonlimiting example, the inflator device includes a gas canister that is configured to deliver gas to inflate the bladder upon activation. The yacht preserver may be used to seal an opening of a yacht by placing the uninflated bladder near the opening in the yacht and activating the inflator device allowing the bladder to expand to seal the opening.

The invention discloses a universal offshore platform. The platform includes a truss body forming the support system of the platform. the truss body is a three-dimensional stable rigid support and comprises an underwater surface layer, a water surface layer and an overwater surface layer from bottom to top. It comprises a first floating body component, a second floating body component and several sporadic single floating bodies. The universal offshore platform of the present invention can be used independently, be used as a constitutional unit of a marine base and is less adversely affected by the wave motion. A buoyancy regulation method based on a universal offshore platform ensures stability of the platform and a power generation system based on the universal offshore platform takes full advantage of the energy of the waves to generate electricity.

The invention discloses a universal offshore platform. The platform includes a truss body forming the support system of the platform. the truss body is a three-dimensional stable rigid support and comprises an underwater surface layer, a water surface layer and an overwater surface layer from bottom to top. It comprises a first floating body component, a second floating body component and several sporadic single floating bodies. The universal offshore platform of the present invention can be used independently, be used as a constitutional unit of a marine base and is less adversely affected by the wave motion. A buoyancy regulation method based on a universal offshore platform ensures stability of the platform and a power generation system based on the universal offshore platform takes full advantage of the energy of the waves to generate electricity.

According to the present invention, there is provided a ship having an anti-sinking and anti-capsize device for emergency, which, in an emergency situation that may be caused by load or loss of buoyancy attributable to flooding, can continuously maintain the state of floating on the water by generating buoyancy inside and below a lower hull, and can prevent the ship from being tilted to one side or being completely capsized by maintaining the balance of the ship, thereby preventing a deadly accident that may occur in an emergency, such as a ship sinking accident, and also facilitating rescue operations.

According to the present invention, there is provided a ship having an anti-sinking and anti-capsize device for emergency, which, in an emergency situation that may be caused by load or loss of buoyancy attributable to flooding, can continuously maintain the state of floating on the water by generating buoyancy inside and below a lower hull, and can prevent the ship from being tilted to one side or being completely capsized by maintaining the balance of the ship, thereby preventing a deadly accident that may occur in an emergency, such as a ship sinking accident, and also facilitating rescue operations.

A compressed air tank for sinking prevention comprises a compressed air tank having a valve; and an air pocket coupled to the compressed air tank and being filled with air discharged from the compressed air tank when the valve is opened, wherein buoyancy is provided to a cabin that is being flooded through the air pocket to prevent a ship from foundering.