A steel-plastic assembly ship

Abstract

This invention relates to the field of small boat manufacturing technology, specifically a steel-plastic composite assembly boat. It includes a hull, which is composed of a mesh-structured skeleton and buoyancy blocks filled within the mesh of the skeleton. The skeleton includes multiple parallel longitudinal beams and multiple parallel transverse beams connecting adjacent longitudinal beams. Each buoyancy block has transverse beam mounting holes penetrating the block, and its sidewalls have slots for embedding the longitudinal beams. This steel-plastic composite assembly boat has low production and maintenance costs, flexible assembly options, and can assemble hulls of various sizes using standardized parts. This reduces production costs and maintenance expenses, allowing for the assembly of hulls of multiple sizes using the same parts.

Description

Technical Field

[0001] The invention relates to the technical field of manufacturing small ships, in particular to a steel-plastic assembled ship. Background Art

[0002] Small ships, rafts and other water transportation vehicles are small in size and light in load capacity, and they pay more attention to reducing material costs, reducing production links, and facilitating maintenance and repair. Most existing small ships use a welded or riveted one-piece hull structure made of metal, wood, fiberglass, etc. Once the hull of these ships is damaged, the repair process is very complicated. In addition, the material of these ships is relatively hard, with poor elasticity, and they are easily attached by marine organisms, increasing the resistance of the ship's operation. My other Chinese patent application 2017104346623 discloses a hull named "Hull Spliced ​​with Round Tubes", which includes a ship board formed by fixing multiple round tubes together by a pipe clamp and a guardrail set on the edge of the ship board. The round tube made of plastic has the characteristics of light weight, low production cost, and corrosion resistance. The flat-plate structure hull assembled by assembling multiple plastic tubes side by side has the advantages of simple structure, convenient maintenance, good sealing effect, and prevention of marine organism attachment. However, this technical solution still has the following shortcomings: 1) The length of the round tube that constitutes the hull is long, and the length of the round tube is the same as the length of the hull. The longer round tube is more difficult to produce and the cost of maintenance and replacement is high; 2) Due to the narrowing and upturned bow or stern, the irregular hull shape requires round tubes in different parts to have different shapes, and the cross-sectional radius of different parts of the round tube is not equal. In other words, multiple specifications of round tubes are required on the same hull. The versatility of the round tubes is poor, which brings difficulties to maintenance and will also increase the cost of maintenance. 3) The specifications of the round tubes determine the shape and size of the hull. The style is single and it is impossible to flexibly assemble hulls of various shapes and sizes. Summary of the invention

[0003] In view of the above-mentioned deficiencies, the purpose of the present invention is to provide a steel-plastic assembled ship with low production and maintenance costs and flexible and diverse assembly. Hulls of various specifications and sizes can be assembled using parts of uniform specifications, thereby reducing production costs and maintenance costs, and hulls of various specifications and sizes can be assembled using the same parts.

[0004] The technical solution adopted by the present invention to solve the technical problem is as follows:

[0005] The steel-plastic assembled ship described in the present invention includes a hull, which is composed of a mesh structure skeleton and buoyancy blocks filled in the meshes of the mesh structure skeleton. The skeleton includes a plurality of parallel longitudinal beams and a plurality of parallel transverse beams connected between two adjacent longitudinal beams. The buoyancy blocks are provided with transverse beam mounting holes that penetrate the blocks, and the side walls of the buoyancy blocks are provided with slots for embedding the longitudinal beams.

[0006] The buoyancy block has a horizontally arranged upper surface and lower surface, a side wall arranged perpendicular to the upper surface and the lower surface, and an inclined front side surface and a rear side surface. The front side surface and the rear side surface are arranged parallel to each other and both form an angle of 30°-60° with the horizontal plane.

[0007] The longitudinal beam is an I-beam with an "I"-shaped cross section. A side wall of each buoyancy block is provided with at least two grooves, and the two grooves correspond to two convex ribs embedded in the I-beam respectively.

[0008] The crossbeam mounting hole comprises a front hole and a rear hole, a front slide groove connected to the front hole is provided between the upper surface and the front hole, and a rear slide groove connected to the rear hole is provided between the rear side surface and the rear hole.

[0009] The cross beam and the longitudinal beam are connected by metal welding.

[0010] The cross beam and the longitudinal beam are connected by a detachable threaded connection or a locking connection.

[0011] An inwardly inclined side wall is provided between the lower end and the lower surface of the side wall of the buoyancy block. The inclined side walls on both sides of the lower end of the buoyancy block are symmetrically arranged so that the lower end thereof presents a wedge-shaped structure that is wide at the top and narrow at the bottom.

[0012] The buoyancy block is formed in one step by using a light material with a specific gravity less than that of water.

[0013] The buoyancy block is a hollow structure made by blow molding.

[0014] Due to the adoption of the above structure, the steel-plastic assembled ship of the present invention has low production and maintenance costs, flexible and diverse assembly, and can assemble hulls of various specifications and sizes using parts of uniform specifications, thereby reducing maintenance costs while reducing production costs, and can use the same parts to assemble hulls of various specifications and sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the top structure of an embodiment of the present invention.

[0016] Figure 2 yes Figure 1 A partial enlarged view of part A.

[0017] Figure 3 yes Figure 1 A schematic side view of the structure of an embodiment.

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the buoyancy block.

[0019] Figure 5 It is a schematic diagram of the side structure of the buoyancy block.

[0020] Figure 6 yes Figure 5 BB cross-sectional view.

[0021] Figure 7 It is a schematic diagram of the cross-sectional structure of a buoyancy block made by blow molding. DETAILED DESCRIPTION

[0022] like Figure 1 , Figure 2 , Figure 3 As shown, the steel-plastic assembly ship of the present invention comprises a hull, which is composed of a mesh frame 1 and buoyancy blocks 2 filled in the meshes of the mesh frame 1. The frame 1 comprises a plurality of parallel longitudinal beams 3 and a plurality of parallel transverse beams 4 connected between two adjacent longitudinal beams. To facilitate the display of structural features, Figure 1 , Figure 2 It is a structural schematic diagram of a semi-finished hull, in which a buoyancy block 2 has been installed in the mesh of the lower half of the skeleton 1. A plurality of crossbeams 4 of the same specification and a plurality of longitudinal beams 3 of the same specification are crisscrossed and connected to form a mesh structure. The plurality of crossbeams 4 and longitudinal beams 3 constituting the skeleton 1 are made of steel or stainless steel of uniform specifications, and the plurality of meshes on the skeleton 1 have the same shape and size, so that the parts of different parts can be universal. In this way, a hull of any size can be assembled with a crossbeam 4 of one specification, a longitudinal beam 3 of one specification, and a buoyancy block 2 of one specification. Since the shapes and sizes of all the crossbeams 4 are exactly the same, the shapes and sizes of all the longitudinal beams 3 are exactly the same, and the shapes and sizes of all the buoyancy blocks 2 are exactly the same, the types of parts required for organizing production are few, and a large amount of design and mold development costs can be saved. During assembly and production, there is no need to select components according to different positions, the assembly process is simple, the production cost is low, and the hull area after assembly can be arbitrarily expanded to assemble into hulls of various specifications and sizes. During use, if any part of the hull is damaged, it only needs to be replaced with a part of the same specification, and the maintenance cost is low.

[0023] As another embodiment of the present invention, when the hull adopts an arc-shaped or tapered bow shape, the lengths of the longitudinal beams 3 at different locations vary slightly, but the basic shapes remain the same, and the purpose of saving design and mold development costs can still be achieved during production and maintenance.

[0024] As a further improvement of the present invention, the hull can be used as a basis to erect sidewalls on both sides of the hull, or a second layer or more layers can be stacked on the hull, so as to use existing spare parts to build an assembled ship with greater buoyancy.

[0025] The buoyancy block 2 of the block structure is formed by one-step molding of a light material with a specific gravity less than that of water, and is a solid foam block or a wood block, etc. Figure 6 As shown. You can also Figure 7The hollow structure shown is made by blow molding.

[0026] like Figure 4 , Figure 5 As shown, the buoyancy block 2 has a horizontally arranged upper surface 21 and a lower surface 22, a side wall 23 arranged perpendicular to the upper surface 21 and the lower surface 22, and an inclined front side 24 and a rear side 25. The front side 24 and the rear side 25 are arranged parallel to each other and both form an angle of 30°-60° with the horizontal plane. The buoyancy block 2 is provided with a crossbeam mounting hole 5 that penetrates the block body, and the side wall of the buoyancy block 2 is provided with a slot 6 for embedding the longitudinal beam 3. The slots 6 on both sides of the buoyancy block 2 are symmetrically arranged, and the structure of the entire buoyancy block 2 is bilaterally symmetrical. Multiple buoyancy blocks 2 of the same shape are arranged in a row in sequence and sandwiched between two longitudinal beams 3. The rear side 25 of the previous buoyancy block is close to the front side 24 of the second buoyancy block, and the rear side of the second buoyancy block is close to the front side of the third buoyancy block. In this way, they are arranged in a row in sequence, and the upper surfaces 21 of multiple buoyancy blocks are located on the same plane to form a ship deck.

[0027] As an embodiment of the present invention, the longitudinal beam 3 is an I-beam with an "I"-shaped cross section, and each buoyancy block 2 has at least two slots 6 on a side wall, and the two slots 6 correspond to two convex ribs embedded in the I-beam.

[0028] like Figure 1 , Figure 2 When assembling, the buoyancy block 2 is clamped between two "I"-shaped I-beams, and the two "I"-shaped I-beams are tightly attached to the left and right side walls of the buoyancy block 2, so that the upper and lower ribs of the I-beam are respectively correspondingly inserted into the two slots 6, and the left and right I-beams are connected by the crossbeam 4 inserted in the crossbeam mounting hole 5, which also plays the role of fixing the buoyancy block 2. The crossbeam 4 and the left and right I-beams can be connected by metal welding, threaded connection or buckle connection.

[0029] As another embodiment of the present invention, the longitudinal beam 3 may also be of a "T"-shaped cross section, so that only one side wall of each buoyancy block 2 needs to have a slot 6 for embedding the convex rib of the "T"-shaped profile.

[0030] like Figure 4 , Figure 5As shown, the crossbeam mounting hole 5 includes a front hole 51 and a rear hole 52, a front slide groove 53 connected to the front hole 51 is provided between the upper surface 21 and the front hole 51, and a rear slide groove 54 connected to the rear hole 52 is provided between the rear side surface 25 and the rear hole 52. A crossbeam 4 can be inserted into each of the front hole 51 and the rear hole 52, so as to fix the buoyancy block 2 so that it will not rotate during use. The setting of the front slide groove 53 and the rear slide groove 54 can facilitate the disassembly and assembly of the buoyancy block 2. After the crossbeam 4 and the longitudinal beam 3 are connected, just insert the crossbeam 4 into the front slide groove 53 or the rear slide groove 54 accordingly, and press hard to make the crossbeam 4 slide into the crossbeam mounting hole along the front slide groove 53 or the rear slide groove 54, avoiding the trouble caused by disassembling the crossbeam 4.

[0031] The buoyancy block 2 with the front slide groove 53 and the rear slide groove 54 is suitable for the case where the cross beam 4 and the longitudinal beam 3 are connected by metal welding.

[0032] As another embodiment of the present invention, the cross beam 4 and the longitudinal beam 3 may also be connected by a detachable threaded connection or a lock connection. In this case, the cross beam 4 and the longitudinal beam 3 can be easily disassembled, and the buoyancy block 2 may only be provided with the cross beam mounting hole 5 without the front slide groove 53 and the rear slide groove 54.

[0033] In addition, as a further improvement of the present invention, an inwardly inclined oblique side wall 26 is provided between the lower end of the side wall 23 of the buoyancy block 2 and the lower surface 22, and the oblique side walls 26 on both sides of the lower end of the buoyancy block 2 are symmetrically arranged so that the lower end thereof is in a wedge-shaped structure with a wide upper portion and a narrow lower portion. After a plurality of buoyancy blocks 2 with a wedge-shaped structure at the lower end are combined together to form a hull, the lower ends of two adjacent groups of buoyancy blocks form longitudinally distributed grooves, and when the hull floats on the water, the grooves on its lower surface can play a role in guiding flow, so that the hull's travel direction is stable.

Claims

1. A steel-plastic assembly ship, comprising a hull, characterized in that: The hull is composed of a mesh frame (1) and buoyancy blocks (2) filled in meshes of the mesh frame (1); the frame (1) comprises a plurality of longitudinal beams (3) arranged in parallel, and a plurality of transverse beams (4) arranged in parallel and connected between two adjacent longitudinal beams; the buoyancy blocks (2) are provided with transverse beam mounting holes (5) penetrating the block; and the side walls of the buoyancy blocks (2) are provided with slots (6) for embedding the longitudinal beams (3); the buoyancy blocks (2) are provided with horizontally arranged upper surfaces (21) and lower surfaces (22), side walls (23) arranged perpendicular to the upper surfaces (21) and lower surfaces (22), and inclined front side surfaces (24) and rear side surfaces (25); the front side surfaces (24) and rear side surfaces (25) are arranged parallel to each other and are both at an angle of 30° to 60° with the horizontal plane. 0° included angle; the longitudinal beam (3) is an I-shaped cross-section, and at least two slots (6) are provided on a side wall of each buoyancy block (2), and the two slots (6) respectively correspond to two convex ribs embedded in the I-shaped steel; the cross beam mounting hole (5) comprises a front hole (51) and a rear hole (52), a front slide groove (53) connected to the front hole (51) is provided between the upper surface (21) and the front hole (51), and a rear slide groove (54) connected to the rear hole (52) is provided between the rear side surface (25) and the rear hole (52); an inwardly inclined oblique side wall (26) is provided between the lower end of the side wall (23) of the buoyancy block (2) and the lower surface (22), and the oblique side walls (26) on both sides of the lower end of the buoyancy block (2) are symmetrically arranged so that the lower end thereof presents a wedge-shaped structure with a wide upper portion and a narrow lower portion.

2. A steel-plastic assembled ship according to claim 1, characterized in that: The cross beam (4) and the longitudinal beam (3) are connected by metal welding.

3. The steel-plastic assembled ship according to claim 1, characterized in that: The cross beam (4) and the longitudinal beam (3) are connected by a detachable threaded connection or a locking connection.

4. A steel-plastic assembled ship according to claim 1 or 2, characterized in that: The buoyancy block (2) is made of a light material having a specific gravity less than that of water and is formed in one step.

5. A steel-plastic assembled ship according to claim 1 or 2, characterized in that: The buoyancy block (2) is a hollow structure manufactured by a blow molding process.

Images