RU163516U1 - SMALL FISHING BOAT - Google Patents

Abstract

1. A small fishing vessel containing a hull, including a metal section and a section made on the basis of polymer material, deck structures, bulkheads, characterized in that the metal section is made in the form of the lower part of the hull and is connected not lower than the cargo waterline with a section made of polymer composite material in the form of the upper part of the hull in one piece with the deck, and the connection of the parts of the hull is carried out by combining and fixing using means of insulation located on the inside s side of the housing and oriented at an angle thereto mounting surfaces, which are provided with upper and lower housing part, furthermore the lower part of the housing is provided with a fender, a superstructure and ship bulkheads are made of a polymeric composite materiala.2. A small fishing vessel according to claim 1, characterized in that for connecting the parts of the hull, as the mounting surfaces, shelves of corner profiles made of steel and polymer composite materials are used, as a means of insulation, a sealing gasket, and fixing of the mounting surfaces is made using means of tightening in the form bolts with nuts and washers. 3. A small fishing vessel according to claim 1, characterized in that the mounting surface of the upper part of the hull is made integral with the upper part of the hull.

Description

The utility model relates to the field of shipbuilding and can find application in the design and construction of small fishing boats using metal and polymer composite materials for fishing in coastal zones, inland waters and rivers.

A ship is known (RU 98731, IPC B63B 5/24, published on October 27, 2010), comprising a hull, bulkheads and casing, which consists of structural elements made of plastic. The housing is equipped with at least two longitudinally arranged base elements. The basic elements and all bulkheads of the case, forming its separate parts, are made of sheet plastic and are inseparably interconnected according to the principle of "tongue-and-groove" by heat treatment along the contact contour.

The hull of the described vessel is completely made of plastic, which reduces its cost. However, given the conditions of fishing in coastal zones, inland waters and on rivers, where shallow water areas are often found, where there are protruding stones, and in addition, broken ice appears on the water in spring and autumn, the likelihood of damage to the plastic case under such operating conditions is very large, which will lead to an emergency on the ship. The plastic hull of the vessel does not guarantee the safety of its operation in such conditions.

The closest analogue is a sea-going vessel with a combined hull (US 6,505,571, IPC B63B 5/24, B63B 5/00, January 14, 2003), the middle section of which is made of metal, and the bow and stern sections are made of plastic. The metal section is attached to the bow and stern sections through transitional extensions. The bow and stern sections are also made with transition extensions of a smaller cross section of plastic, which abut and / or overlap transition extensions of the metal section. The junction is additionally equipped with metal-coated holdings.

The disadvantages of the described vessel include the danger of its use in coastal fishing zones, inland waters and on rivers in connection with the shallow areas with protruding stones, on which the bow and stern sections of the hull may be damaged. Also, the plastic sections of the body are damaged by sharp pieces of broken ice during the spring and autumn season. Therefore, such hulls cannot guarantee a proper degree of safety during fishing. In addition, the implementation of only the fore and aft sections of plastic, can not sufficiently reduce the weight of the vessel and its cost, because the area of the metal part of the hull is much larger than the total area of the bow and stern parts of the hull. The manufacturing process of individual sections of the vessel from plastic is a complex and energy-intensive technological process. Ensuring the necessary strength in the manufacture of sections of the vessel using such a technological process is undesirable in the construction of small fishing vessels, because increases the cost of ships. Thus, the described closest analogue of a combined vessel is unsafe and expensive to be used in coastal fishing.

The utility model solves the problem of creating a cheaper combined small fishing vessel that meets the increased safety requirements for operation in shallow coastal zones and inland waters, due to structural changes in the metal section and polymer sections, their relative position, location and method of connection and use of other structural material based on polymer.

To obtain the desired result in a vessel containing a hull, including a metal section and a section made on the basis of polymer material, deck structures, bulkheads, it is proposed that the metal section be made in the form of the lower part of the hull and connected at least below the cargo water line with a section made of polymer composite material in the form of the upper part of the hull in one piece with the deck, and the connection of the parts of the hull by combining and fixing using insulation means, is located from the inside of the case and oriented at an angle to the mounting surfaces with which the lower and upper parts of the case are equipped. In addition, the lower part of the hull is proposed to be equipped with a fender beam, and the above-deck structures and bulkheads of the vessel should be made of polymer composite material.

To connect the parts of the housing, shelves of corner profiles made of steel and polymer composite materials can be used as mounting surfaces, a sealing gasket can be used as an insulation means, and fixing of mounting surfaces can be performed using tightening means in the form of bolts with nuts and washers.

The mounting surface of the upper part of the housing can be made in one piece with the upper part of the housing.

The graphic materials attached to the description show:

FIG. 1 - proposed vessel, side view;

FIG. 2 is a section along AA in FIG. 1 node connecting the metal part and the part of the polymer composite material.

The following symbols are used on the graphic materials attached to the description:

1 - metal part of the body; 2 - part of the body of the polymer composite material; 3 - fender; 4 - deck; 5 - section of the deck structure (for example, deckhouses) made of a polymer composite material; 6 - sections of bulkheads made of polymer composite material; 7 - mounting surfaces of the metal part of the housing and part of the housing of a polymer composite material; 8 - sealing gasket; 9 - means for tightening the mounting surfaces of the parts of the housing; 10 - frame side cover of the body; 11 - cargo waterline.

Implementation of a utility model.

The proposed use of a polymer composite material instead of plastic (as in the closest analogue) for the manufacture of sections of the vessel, including the upper part of the hull, is explained by the fact that the use of the composite makes it possible easier and cheaper due to the simpler and less energy-intensive manufacturing technology to provide the estimated sufficient strength of the fishing vessel’s structures , which means to reduce the cost of the vessel as a whole. The required design strength of ship structures can be obtained by selecting appropriate reinforcing elements that provide mechanical properties of the material. For example, fiberglass can be used as the polymer composite material.

The proposed small fishing vessel comprises a hull, including a metal part 1, made in the form of the lower part of the hull, part 2 of a polymer composite material, made in the form of the upper part of the hull in one piece with deck 4, as well as sections 5 of the deck structure and section 6 of the bulkheads.

The metal part 1 is connected to part 2 of a polymer composite material by means of mounting surfaces 7 fixed on parts 1 and 2, located on the inside of the case and oriented at an angle to the case, made, for example, in the form of shelves of corner profiles, respectively, of steel and polymer composite material. The mounting surface of the upper part of the housing can be made in one piece with the upper part of the housing, which reduces the complexity of installation.

The tightness of the connection of parts 1 and 2, and therefore the safe operation of the vessel, can be ensured, for example, by a sealing gasket 8 (for example, made of rubber) located between the mounting surfaces 7 of the metal part 1 and part 2 of a polymer composite material (Fig. 2) , known insulating coatings, and the reliability of the connection - means of tightening 9, for example, in the form of bolts with nuts and washers, mounting surfaces 7. The proposed connection of the parts of the housing is quite durable and in combination with means isolation provides safety during the operation of the vessel.

The choice of the junction of the hull parts - not lower than the cargo water line - makes the underwater part of the ship’s hull made of metal, the thickness of which is selected based on calculations for a particular ship, less vulnerable to ensure operational safety. And the implementation of the upper part 2 of the hull with deck 4 of a polymer composite material allows you to provide design strength, while reducing the cost of the vessel.

The proposed location of the girder 3 on the metal part 1 of the hull additionally ensures the safety of the junction of parts 1 and 2 of the hull, perceiving strong dynamic loads directed to the hull of the vessel, and damping them, thereby protecting the junction.

In addition, in the proposed design of the vessel, the area of the metal part 1 of the hull is less than the area of part 2 of the polymer composite material, and this allows to reduce the weight of the vessel and its cost, at the same time, the proposed relative position of the metal part 1 and part 2 of the polymer composite material it is easier to ensure the stability of the vessel, which positively affects the safety during its operation.

Performing bulkheads and above-deck structures made of polymer composite material makes it easier and cheaper to provide the required design strength, and also reduces the weight of the vessel and its cost.

Thus, the proposed set of essential features of the utility model provides a solution to the problem of creating a cheaper combined small fishing vessel, at the same time satisfying the increased safety requirements for operation in shallow coastal zones and inland waters, compared with the closest analogue, due to the less vulnerable underwater part of the hull, reducing the weight and cost of the vessel by reducing its metal part, the use of polymer composite material, allowing o to ensure the estimated strength of the upper hull, bulkheads and superstructures with a decrease in the cost of the vessel, changing the relative position of the metal hull and parts of the polymer composite material that improves the stability of the vessel, connecting the hull parts not lower than the cargo water line and supplying the metal part of the hull with a girder for additional protection of the junction parts of the body from possible impacts.

Claims (3)

1. A small fishing vessel containing a hull, including a metal section and a section made on the basis of polymer material, deck structures, bulkheads, characterized in that the metal section is made in the form of the lower part of the hull and is connected not lower than the cargo waterline with a section made of polymer composite material in the form of the upper part of the hull in one piece with the deck, and the connection of the parts of the hull is carried out by combining and fixing using means of insulation located on the inside s side of the housing and oriented at an angle thereto mounting surfaces, which are provided with upper and lower housing part, furthermore the lower part of the housing is provided with a fender, a superstructure and ship bulkheads are made of a polymeric composite material. 2. Small fishing vessel according to claim 1, characterized in that for connecting the parts of the hull, as the mounting surfaces, shelves of corner profiles made of steel and polymer composite materials are used, as a means of insulation, a sealing gasket, and the fixing of the mounting surfaces is made using tightening means in the form of bolts with nuts and washers. 3. Small fishing vessel according to claim 1, characterized in that the mounting surface of the upper part of the hull is made in one piece with the upper part of the hull.

Images