RU204561U1 - Floating platform made of prefabricated pontoons - Google Patents

Abstract

The utility model relates to the field of floating collapsible structures used as berths, pontoon ferries, platforms for repairing hydraulic structures, for placing solar panels, etc. and is aimed at increasing the strength and rigidity of the floating platform. The specified technical result is achieved by the fact that in the proposed floating platform of prefabricated pontoons, containing prefabricated pontoons 1, made in the form of regular hexagonal prisms, inside which at the intersection of the lateral and horizontal edges are tides with blind holes open to the outside, the plates are fixed with a connecting screw 4 with a conical head at the upper end and a thread corresponding to the thread of the lower plate at the lower end, located on the outer contour of the platform, linings 5 for supporting the plates made in the form of cylindrical glasses 2, cylindrical grooves are made in the tides, open to the outside, the axis of which is located at the intersection of the side faces of the prefabricated pontoons 1, the dimensions of which correspond to the dimensions of the cylindrical walls of the glasses 2, the linings are made in the form of semi-cylinders, the radius of curvature of which is equal to the radius of curvature of the inner surface of the cylindrical wall of the glass 2.

Description

The utility model relates to the field of floating collapsible structures used as berths, pontoon ferries, platforms for repairing hydraulic structures, for placing solar panels, etc.

Known berth (RF Patent No. 2356778, IPC В02В 35/34, publ. 05/27/2009), containing coupled floating modules (floating elements), made in the form of regular hexagonal prisms made of composite material, consisting of a polyurethane shell and located inside it pressed foam. Adjacent floating elements are interconnected by means of attachment points, which include plates with teeth bent towards the horizontal edges of the module and connecting rods located in the conical recesses of the plates, the upper end of the rods is equipped with conical heads, and the lower end with clamps.

The disadvantages of the analogue include the low bearing capacity of the attachment point, which in this design is limited by the depth of the teeth deepening into the surface, the bending stiffness of the plates and the force of pressing the plates to the horizontal edges.

Known floating platform of prefabricated elements containing modular pontoons (Utility model No. 195221, IPC: В63В 35/00, publ. 01/17/2020), containing modular pontoons, made in the form of regular hexagonal prisms (parallelepipeds), attachment points, consisting of plates with pointed cylindrical spikes directed towards the upper and lower edges and connecting rods (screws) passing through the holes in the plates, the upper end of the rods (screws) is made in the form of a conical head, and the lower end is equipped with a thread (retainer), holes in the upper the plate is made in the form of a cone, a thread is cut in the hole of the bottom plate corresponding to the thread at the lower end of the connecting rod (screw), inside the prefabricated elements at the intersection of the lateral and horizontal edges there are tides with blind holes open outward, support pads under the plates on the upper face of the prefabricated elements located below the surface by an amount equal to the thickness of the plates, the nodes to The restraints of prefabricated elements, located along the perimeter of the platform, are equipped with overlays for supporting the upper and lower plates, to protect the prefabricated elements from damage and to fasten the railing posts.

By the number of similar features and the achieved result, this technical solution was chosen as a prototype of the proposed floating platform made of prefabricated pontoons.

The disadvantages of the prototype include high mass and cost of attachment points.

The technical result, the achievement of which the proposed utility model is aimed at, consists in reducing the mass and cost of fastening assemblies for prefabricated pontoons.

To achieve the specified technical result in a floating platform made of prefabricated pontoons, containing prefabricated pontoons made in the form of regular hexagonal prisms, inside which, at the intersection of the lateral and horizontal edges, tides with blind holes open outward are made, the plates are fixed with a connecting screw with a tapered head at the upper end and with threads corresponding to the thread of the bottom plate at the lower end, located on the outer contour of the platform pads for supporting the plates made in the form of cylindrical glasses, cylindrical grooves are made in the tides, open outward, the axis of which is located at the intersection of the side faces of prefabricated pontoons, the dimensions of which correspond to the dimensions of the cylindrical walls glasses, the linings are made in the form of semi-cylinders, the radius of curvature of which is equal to the radius of curvature of the inner surface of the cylindrical wall of the glass.

Distinctive features of the proposed design from the above known, the closest to it, are - the execution of plates in the form of cylindrical glasses, equipping with cylindrical grooves open outward and placed in the tides located at the intersection of the lateral and horizontal faces of prefabricated pontoons, the dimensions of which correspond to the dimensions of the cylindrical walls of the glasses , execution of linings in the form of semi-cylinders, with a radius of curvature equal to the radius of curvature of the inner surface of the cylindrical wall of the glass.

Due to the presence of these signs, the maximum design load equal to the separation force of the corner sections of the pontoons located in the stretched zone of the platform, if we consider it as a plate on an elastic foundation, is perceived by the cylindrical wall of the glass working in tension on one side and the corner sections of the pontoons bounded by the side faces and the cylindrical surface of the groove, working on a cut, on the other side. Making the bowl from a corrosion-resistant material that works well in tensile strength, such as stainless steel, reduces the weight of the bowl. The small wall thickness of the glass (about 2-3 mm) allows the use of stamping for its manufacture, which reduces its cost. In addition, a standard nut welded to the bottom of the barrel from the outside can be used to obtain a threaded hole in the lower cup.

The proposed utility model is illustrated by the drawings shown in FIG. 1-5.

in fig. 1 shows a section of a unit for fastening prefabricated pontoons of rectangular shape with a horizontal plane passing below the upper edge of the pontoon;

in fig. 2 - attachment point, top view;

in fig. 3 - section of the assembly for prefabricated pontoons with a vertical plane passing through the centers of the pontoons;

in fig. 4 - section of the attachment point for external prefabricated pontoons by a horizontal plane passing below the horizontal edge of the pontoon;

in fig. 5 - section of the attachment point for external prefabricated pontoons with a vertical plane passing along the contact of the vertical faces of the pontoons.

The floating platform of prefabricated pontoons contains prefabricated pontoons 1, made in the form of regular hexagonal prisms, an attachment unit, including plates made in the form of upper 2 and lower 3 glasses, made of a corrosion-resistant material that works well in tension, for example, stainless steel , a connecting screw (rod) 4 with a conical head, lining 5 for supporting glasses 2 and 3 (when connecting the outer elements of the floating platform and protection, the latter from damage during the bulk of ships).

The proposed floating platform works as follows.

To mount the floating platform, first move the lower glass 3 by rotation to the end of the connecting screw 4. Then, four prefabricated pontoons 1 are pressed against each other, while placing the connecting screw 4 in the center of the formed square. Next, the upper glass 2 is inserted into the cylindrical grooves located in the corners of the prefabricated pontoons 1, after that lifting the connecting screw 4, insert the lower glass 3 into the cylindrical grooves of the prefabricated pontoons 1 located on the lower edge.

Then, rotating the connecting screw 4, the upper 2 and lower 3 glasses are tightly pressed against the horizontal edges of the prefabricated pontoons 1. The rest of the prefabricated pontoons 1 are docked to the floating platform in the same way.

To connect the prefabricated pontoons 1, located along the perimeter of the floating platform, pads 5 are used, which also play the role of fenders.

Claims (1)

A floating platform made of prefabricated pontoons, containing prefabricated pontoons 1, made in the form of regular hexagonal prisms, inside of which, at the intersection of the lateral and horizontal edges, tides with blind holes open outward are made, the plates are fixed by a connecting screw 4 with a tapered head at the upper end and a thread corresponding to thread of the bottom plate at the lower end, located on the outer contour of the platform of the lining 5 for supporting the plates, characterized in that the plates are made in the form of cylindrical glasses 2, cylindrical grooves are made in the tides, open outward, the axis of which is located at the intersection of the side faces of the prefabricated pontoons 1, the dimensions of which correspond to the dimensions of the cylindrical walls of the glasses 2, the linings are made in the form of semi-cylinders, the radius of curvature of which is equal to the radius of curvature of the inner surface of the cylindrical wall of the glass 2.

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