Modularized foldable sail

Abstract

The modular foldable sail comprises a base connected with a ship deck, a hinged shaft structure is installed on the base, a sail surface structure is arranged on the hinged shaft structure and comprises a fixed part and a movable part which are arranged in pairs, the fixed part is fixed to the hinged shaft structure, and the movable part is fixed to the hinged shaft structure. The movable parts can rotate around the hinged shaft structure and are arranged between the fixed parts in a staggered mode. Matched embedding faces are formed on the opposite sides of the fixed part and the movable part to enable the fixed part and the movable part to be integrated, and the relative position of the movable part and the fixed part is changed around a hinged shaft structure, so that the space occupied by the sail is reduced. According to the modular foldable wind sail, the sail surface is subjected to modular treatment, and a complete sail surface structure is formed through vertical staggered stacking of the convex sail surface modules and the concave sail surface modules. Mold investment is reduced, occupied space is reduced, and production cost is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sail-assisted navigation, and particularly relates to a modular foldable sail. BACKGROUND

[0002] The wing sail mainly has telescopic wings and foldable wings, wherein the telescopic wings are telescopic up and down, generally two to four sections, and the size of each sail is about 14m wide and several dozen meters high. Although each sail is similar in shape, the sizes are different. Therefore, the mold cost of the telescopic wing sail is basically positively correlated with the unfolded area. The mold cost is several million to tens of millions. The large mold size puts forward higher requirements for the production site, and there are many inconveniences in storage, transportation and maintenance, which further leads to high production cost. The telescopic wing sail is also an open-web structure except for one section which is not an open-web structure (without a partition or shear web in the middle), and it is very difficult to design lightweight.

[0003] In addition, the transportation of the sail is subject to many restrictions of transportation lines and conditions. The foldable wing sail is generally composed of one main wing and two auxiliary wings, and some designs have a main wing and an auxiliary wing. It is generally composed of two or more sail surfaces. The existing foldable wing design solves the transportation difficulty of the sail, but the problems of high mold cost and production cost still exist. The existing foldable wing is generally supported only at the upper and lower ends, so the sail surface needs to be designed with large rigidity, which limits the lightweight design.

[0004] The large size of a single sail surface leads to large mold investment, large site occupation, etc., which is not convenient for transportation, has a great impact on loading and unloading, and leads to high production cost.

[0005] Through retrieval, CN202421424105.5 discloses a lift-type wind-assisted propulsion device for a ship, which can realize functions such as sail folding, rotating, etc. through the setting of a control system. The attack angle is changed according to the real-time wind conditions monitored by a wind speed and direction monitoring module, the assist efficiency is improved, and the adaptability and operation efficiency of the sail to complex operating conditions of the ship are improved. The sail assembly of the structure needs a main wing sail and multiple auxiliary wing sails of different structures. The forming mold is relatively complex.

[0006] Therefore, it is of important practical significance and economic value to invent a new foldable sail structure to reduce the mold and product production cost, facilitate transportation and use, and improve the convenience of loading and unloading of the ship. SUMMARY

[0007] In order to solve the above-mentioned deficiencies of the prior art, the application discloses a modular foldable sail, which adopts a vertical stack hinge shaft type airfoil sail structure to reduce mold and product production costs; different height specifications of the sail can be produced through the same mold, mold costs are low, site occupation is small, and the mold can be replaced and repaired; the hinge shaft type foldable design is adopted, in the folded state, the sail width size is only about half of the original, the transportation difficulty and cost are reduced, and the convenience of loading and unloading goods of the ship is improved.

[0008] The technical means adopted by the application to solve the above problems are: The application discloses a modular foldable sail, which comprises a base connected with a ship deck, a hinge shaft structure is installed on the base, a sail surface structure is arranged on the hinge shaft structure, the sail surface structure comprises a pair of fixed parts and movable parts arranged alternately, the fixed parts are fixed on the hinge shaft structure, the movable parts can rotate around the hinge shaft structure, and the movable parts are arranged alternately between the fixed parts; the opposite sides of the fixed parts and the movable parts form matching embedding surfaces to make the fixed parts and the movable parts integrated, and the relative positions of the movable parts and the fixed parts are changed around the hinge shaft structure, so that the space occupied by the sail is reduced.

[0009] The modular foldable sail of the application modularly processes the sail surface, the mold cost is low, the modules can be stacked, the size and shape of the sail surface can be assembled according to requirements by only increasing or decreasing the number of modules, and the sail surface has high universality.

[0010] The modular foldable sail of the application is composed of a pair of fixed parts and movable parts arranged alternately, in the folded state, the sail width size is only about half of the original, the transportation difficulty and cost are reduced, and the convenience of loading and unloading goods of the ship is improved.

[0011] Further, the fixed parts and the movable parts are vertically staggered and stacked as convex sail surface modules and concave sail surface modules. This design effectively utilizes space, so that the convex sail surface modules and the concave sail surface modules are arranged in cooperation, the fixed parts and the movable parts can form a smooth cambered sail surface, and the two parts work cooperatively to utilize wind power to drive the ship forward.

[0012] Further, the convex sail surface modules and the concave sail surface modules are arranged in pairs and arranged in vertical staggered and embedded cooperation. This structure can make the stress of the whole sail surface uniform, and has higher use reliability.

[0013] Further, the convex sail surface modules and the concave sail surface modules have pin holes designed on the upper and lower surfaces, and a pin rod is installed in the pin hole, which is used for connecting the convex sail surface modules and the concave sail surface modules stacked in the upper and lower directions, and realizes the transmission of horizontal load between the convex sail surface modules and the concave sail surface modules.

[0014] Furthermore, the interlocking surfaces are staggered on both sides of the hinge structure, and the axis of the interlocking surfaces coincides with the axis of the hinge structure. The convex sail module and the concave sail module have interlocking surfaces, which can form a complete sail surface after being interlocked.

[0015] Furthermore, the interlocking surface forms a convex or Z-shaped structure with the upper and lower surfaces of the convex sail module and the concave sail module, which increases the stability of the combination of the convex sail module and the concave sail module.

[0016] Furthermore, the interlocking surface is a curved surface, including a first interlocking surface and a second interlocking surface, and the diameter of the interlocking surface is 1 / 3-1 / 2 of the width of the sail surface. The specific need depends on the size of the folding angle to ensure that the two parts of the sail surface do not collide with each other after folding.

[0017] Furthermore, the sail structure formed by the engagement of the fixed part and the movable part is in a crescent shape that is bent to one side.

[0018] Furthermore, a transverse cantilever is provided at the bottom of the hinge shaft near the top of the base, and the cross section of the transverse cantilever is a wedge-shaped structure to support the fixed part.

[0019] Furthermore, the convex sail module and the concave sail module use lightweight materials such as fiber-reinforced composite materials, as well as lightweight structures such as foam cores.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. The modular foldable sail of this invention utilizes modular processing of the sail surface, forming a complete sail surface structure by vertically staggering and stacking convex sail surface modules and concave sail surface modules. This reduces mold investment, site occupation, and production costs.

[0021] 2. The modular, foldable sails of this invention feature a stackable design, allowing sails of varying heights to be created simply by adding or removing modules. This eliminates the need for separate mold designs for each height, improving production flexibility and reducing mold development costs and maintenance.

[0022] 3. The sail of the present invention can rotate around the hinge axis, and when folded, its width is only about half of its original width. This significantly reduces the difficulty and cost of transportation, improves the convenience of loading and unloading cargo on ships, and reduces space occupied during transportation.

[0023] 4. The modular foldable sail of the present invention consists of a sail surface composed of modules, one of which is fixed to a hinge axis and can form a highly rigid cantilever structure with the center column hinge axis. Furthermore, the same mold can be used to produce modules of different stiffnesses and the same size, thus achieving a variable stiffness design for the entire sail, fully utilizing material properties, facilitating lightweight design, and reducing product costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The overall unfolded state structural schematic diagram of the modular foldable sail described in embodiment 1.

[0025] Figure 2 The overall folded state structural schematic diagram of the modular foldable sail described in embodiment 1.

[0026] Figure 3 The overall folded state structural schematic diagram of the modular foldable sail described in embodiment 1. Figure 1 The top view of the modular foldable sail described in embodiment 1.

[0027] Figure 4 The top view of the modular foldable sail described in embodiment 1. Figure 2 The top view of the modular foldable sail described in embodiment 1.

[0028] Figure 5 The top view of the modular foldable sail described in embodiment 1. Figure 1 The elevation view of the modular foldable sail described in embodiment 1.

[0029] Figure 6 The solid schematic diagram of the convex sail surface module and the concave sail surface module of the modular foldable sail described in embodiment 1.

[0030] Figure 7 The structural schematic diagram of the stepped module of the modular foldable sail described in embodiment 2.

[0031] Figure 8 The structural schematic of the convex sail surface module and the concave sail surface module of the modular foldable sail described in embodiment 3.

[0032] In the figure: 1-ship deck, 2-base, 3-hinge shaft structure, 4-sail surface structure, 5-embedded surface, 6-pin hole, 7-pin rod, 8-transverse cantilever, 9-cylindrical surface, 41-fixed part, 42-movable part, 43-convex sail surface module, 44-concave sail surface module, 45-axle hole, 46-step surface, 51-first embedded surface, 52-second embedded surface. DETAILED DESCRIPTION

[0033] The application will be further described below in conjunction with the drawings. In the drawings, only exemplary illustrations are shown, and the representations are only schematic diagrams, not physical diagrams, and cannot be understood as limiting the patent; in order to better illustrate the embodiments of the application, some components of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted. Embodiment 1

[0034] As Figures 1-6As shown, the modular foldable sail of the embodiment includes a base 2 connected with the deck 1 of the ship, and the base 2 is in a conical structure, which supports and fixes the whole sail.

[0035] A mounting hole is arranged at the center of the top end of the base 2 for inserting and mounting a hinge shaft structure 3, and the hinge shaft structure 3 is provided with a sail surface structure 4 on the support shaft. The sail surface structure 4 includes a pair of fixed parts 41 and movable parts 42, the fixed parts 41 are fixed to the hinge shaft structure 3, the movable parts 42 are rotatable around the hinge shaft structure 3, and are staggered between the fixed parts 41. The fixed parts 41 and the movable parts 42 are integrated by splicing the opposite sides of the fixed parts 41 and the movable parts 42 to form a matching fitting surface 5, and the relative position of the movable parts 42 to the fixed parts 41 is changed around the hinge shaft structure 3 to reduce the space occupied by the sail.

[0036] In order to meet the requirement of the stability of the whole fixed part 41, a horizontal cantilever 8 is arranged at the bottom of the hinge shaft structure 3 near the top of the base 1, and the cross section of the horizontal cantilever 8 is in a wedge structure to support the fixed part 41. The thickness of the horizontal cantilever 8 gradually narrows from one side of the hinge shaft structure 3 to the side of the fixed part 41.

[0037] The fixed part 41 and the movable part 42 are both formed by vertically staggered stacking of convex sail surface modules 43 and concave sail surface modules 44. The upper and lower surfaces of adjacent convex sail surface modules 43 and concave sail surface modules 44 are both flat, and the upper and lower surfaces of the fixed part 41 and the movable part 42 are matched with each other in the unfolded state, and the whole sail surface structure 4 is integrated tightly. The sail surface structure formed by the fitting of the fixed part 41 and the movable part 42 is in the shape of a crescent curved to one side.

[0038] Specifically, the convex sail surface modules 43 and the concave sail surface modules 44 are arranged in pairs and are arranged in a vertical interlocking staggered manner. The convex sail surface modules 43 and the concave sail surface modules 44 are designed with pin holes 6 on the upper and lower surfaces, and pin rods 7 are arranged in the pin holes 6 to connect the upper and lower stacked convex sail surface modules 43 and concave sail surface modules 44, and to realize the transmission of horizontal load between the convex sail surface modules 43 and the concave sail surface modules 44. Preferably, the pin holes 6 are arranged on one side of the cylindrical surface 9 at the edge of the fixed part 41 and the movable part 42, and in order to be installed stably, the pin holes 6 can also be designed near the middle part.

[0039] The fitting surface 5 is arranged on both sides of the hinge shaft structure 3, and the axis of the fitting surface 5 coincides with the axis of the hinge shaft structure 3. The fitting surface 5 is a curved surface, including a first fitting surface 51 and a second fitting surface 52, and the diameter of the fitting surface is 1 / 3-1 / 2 of the width of the sail surface. The specific requirement is determined according to the size of the folding angle, so as to ensure that the two parts of the sail surface do not collide after folding.

[0040] Correspondingly, the second fitting surface 52 of the concave sail module 44 is a concave cylindrical surface, and its rotation axis is coaxial with the shaft hole 45 of the convex sail module. A pin hole 6 is designed perpendicularly to the plane, and a pin rod 7 is installed in the pin hole 6, which is used for stacking positioning and load transmission. In the embodiment, the first fitting surface 51 of the convex sail module 43 is a convex cylindrical surface, and its rotation axis is coaxial with the shaft hole 45. A pin hole 6 is designed perpendicularly to the plane, and a pin rod 7 is installed in the pin hole 6, which is used for stacking positioning and load transmission.

[0041] The convex sail module 43 and the concave sail module 44 adopt a lightweight structure of fiber-reinforced composite material and foam sandwich.

[0042] In the embodiment, the fitting surface 5 and the upper and lower surfaces of the convex sail module 43 and the concave sail module 44 form a convex structure. Figure 5 is a schematic view of a sail fixed part and a rotating part. The movable part is formed by stacking the concave sail module-convex sail module-concave sail module in an alternating manner from bottom to top, and the movable part can rotate around the hinge shaft. The fixed part is formed by stacking the convex sail module-concave sail module-convex sail module in an alternating manner from bottom to top, and the fixed part is fixed with the cantilever beam and the hinge shaft.

[0043] Figure 6 The convex sail module 43 and the concave sail module 44 can form the basic shape of the sail, but cannot realize the hinge structure between each other. The number of stacked layers is at least two, which can meet the basic structure and function of the application. Embodiment two

[0044] As shown in Figure 7 , the embodiment is basically the same as the above-mentioned embodiment 1, and the difference is that the fixed part 41 and the movable part 42 of the embodiment are step-shaped modules, which are equivalent to integrating the convex sail module 43 and the concave sail module 44 of embodiment 1 into a single module, and the single module is stacked in an alternating and rotating manner. The fitting surface of the convex sail module 43 and the concave sail module 44 in the embodiment is an L-shaped step surface 46. The convex sail module 43 and the concave sail module 44 are both provided with coaxial shaft holes 45. Embodiment three

[0045] As shown in Figure 8 , the embodiment is basically the same as the above-mentioned embodiment 1, and the difference is that the fixed part 41 and the movable part 42 are integrated into a single module by the convex sail module and the concave sail module.

[0046] Since the method of integrating more than three convex sail modules and concave sail modules into a single module is similar, only three stacked modules are shown, that is, two convex sail modules and one concave sail module are integrated into a single module, or two concave sail modules and one convex sail module are integrated into a single module.

[0047] The above examples are only for illustrating the present application, and are not intended to limit the present application. Those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present application. Therefore, all equivalent technical solutions should belong to the protection scope of the present application, and the protection scope of the present application should be defined by the claims.

Claims

1. A modular collapsible sail characterized in that, The utility model relates to a wind sail structure of ship, including the base (2) connected with ship deck (1), the hinge structure (3) is installed on the base (2), the sail surface structure (4) is arranged on the hinge structure (3), the sail surface structure (4) includes the fixed part (41) and movable part (42) of pair arrangement, the fixed part (41) is fixed on the hinge structure (3), the movable part (42) can rotate around the hinge structure (3), and the movable part (42) is staggered and arranged between the fixed part (42), the fixed part (41) and movable part (42) form the interfitting surface (5) of mutual cooperation opposite side to make the fixed part (41) and movable part (42) become an organic whole, and the relative position of movable part (42) around the hinge structure (3) is changed with the fixed part (41), to reduce the space occupied by wind sail.

2. The modular collapsible sail of claim 1, wherein, The fixed part (41) and the movable part (42) are vertically staggered and stacked by convex sail surface modules (43) and concave sail surface modules (44).

3. The modular collapsible sail of claim 2, wherein, The convex sail surface modules (43) and the concave sail surface modules (44) are arranged in pairs and vertically staggered and embedded.

4. The modular collapsible sail of claim 2, wherein, The convex sail surface modules (43) and the concave sail surface modules (44) are designed with pin holes (6) on the upper and lower surfaces, and pin rods (7) are installed in the pin holes (6) for connecting the convex sail surface modules (43) and the concave sail surface modules (44) stacked vertically, so as to realize the transmission of horizontal load between the convex sail surface modules (43) and the concave sail surface modules (44).

5. The modular collapsible sail of claim 1, wherein, The interfitting surface (5) is arranged on both sides of the hinge structure (3), and the axis of the interfitting surface (5) coincides with the axis of the hinge structure (3).

6. The modular collapsible sail of claim 5, wherein, The interfitting surface (5) forms a convex or Z-shaped structure with the upper and lower surfaces of the convex sail surface modules (43) and the concave sail surface modules (44).

7. The modular collapsible sail of claim 6, wherein, The interfitting surface (5) is a curved surface, including a first interfitting surface (51) and a second interfitting surface (52), and the diameter of the interfitting surface is 1 / 3-1 / 2 of the width of the sail surface.

8. A modular collapsible sail according to any one of claims 2 to 7, wherein, The sail surface structure formed by the interfitting of the fixed part (41) and the movable part (42) is a crescent shape bent to one side.

9. The modular collapsible sail of claim 8, wherein, A horizontal cantilever (8) is arranged on the bottom of the hinge structure (3) near the top of the base (1), and the cross section of the horizontal cantilever (8) is a wedge-shaped structure to support the fixed part (41).

10. The modular collapsible sail of claim 9, wherein, The convex sail surface modules (43) and the concave sail surface modules (44) adopt a lightweight structure of fiber-reinforced composite material and foam sandwich.

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