Two-dimensional retractable light boat based on truss structure

Abstract

The present invention provides a two-dimensional, retractable, lightweight boat based on a truss structure, comprising a rear end support, two scissor-type telescopic trusses, a plurality of retractable rods, and a plurality of foldable support plates. The first ends of the two scissor-type telescopic trusses are respectively connected to the two sides of the rear end support; the ends and the bottom of the scissor-type telescopic trusses are connected by the retractable rods; and the foldable support plates are connected to the retractable rods at the bottom of the scissor-type telescopic trusses. This two-dimensional, retractable, lightweight boat based on a truss structure has a small retracted volume, is lightweight, can be quickly deployed, and maintains stability.

Description

Technical Field

[0001] The present invention relates to the technical field of retractable boats, and in particular to a two-dimensional retractable light boat based on a truss structure. Background Art

[0002] Large ship navigation and water crossing operations require lifeboats. These boats occupy a large amount of space, necessitating the design of lightweight, compact, and quickly deployable lifeboats. Trusses, a system composed of hinged members, are a commonly used structure for maintaining stability, found in a variety of applications, including sliding doors, risers, and fences. Through unidirectional tension or compression, trusses can be arranged into the desired deployed configuration. By leveraging friction between the members and securing the ends after tension, they maintain stability even in situations without plate elements.

[0003] Prior art offers a high-compression-ratio foldable boat solution based on Miura technology. Chinese patent CN113715959A discloses a bi-material 3D-printed foldable boat. While this boat is lightweight, compact when compressed, and easy to deploy, it suffers from fatigue at the bi-material joints, reducing structural safety.

[0004] Prior art includes a solution for folding longitudinal watertight panels made of honeycomb polypropylene. U.S. Patent No. 10266231B2 discloses a longitudinally foldable hull. While this type of vessel offers good structural strength, the entire structure is constructed of panels, resulting in increased mass and a relatively lengthy assembly process, making it unsuitable for lifesaving applications. Summary of the Invention

[0005] In view of the above-mentioned deficiencies in the prior art, the present invention provides a two-dimensional retractable light boat based on a truss structure, which has a small retracted volume, is light in weight, can be quickly deployed and remains stable.

[0006] In order to achieve the above-mentioned objectives, the present invention provides a two-dimensional retractable light boat based on a truss structure, comprising a rear end bracket, two scissor-type telescopic trusses, a plurality of retractable rods and a plurality of foldable support plates; the first ends of the two scissor-type telescopic trusses are respectively connected to the two sides of the rear end bracket; the two ends and the bottom of the scissor-type telescopic trusses are connected by the retractable rods; the foldable support plates are connected to the retractable rods at the bottom of the scissor-type telescopic trusses.

[0007] Preferably, the rear end bracket includes two vertical rods, and a slide groove is provided at the lower end of the vertical rod; the scissor-type telescopic truss includes a plurality of scissor units and two half truss rods, and each of the scissor units includes two truss rods pivotally connected in the middle; the ends of the truss rods of two adjacent scissor units are pivotally connected to the ends of the corresponding truss rods; the top end of the scissor unit at the first end of the scissor-type telescopic truss is connected by a retractable rod and is pivotally connected to the corresponding vertical rod; the first end of the scissor-type telescopic truss The bottom end of the scissor unit at one end is connected via a retractable rod and can be pivoted in the slide slot slidably along the slide slot; the top and bottom ends of the second end of the scissor-type telescopic truss are respectively pivoted to the first end of a half truss rod; the second ends of the two half truss rods are pivoted to each other; the second ends of the half truss rods of the two scissor-type telescopic trusses are connected via the retractable rod; the bottom ends of the corresponding truss rods of the two scissor-type telescopic trusses are connected via the retractable rod.

[0008] Preferably, the retractable rod comprises a crossbeam slot rod and two crossbeam side end rods; the two crossbeam side end rods are respectively snap-connected to the two ends of the crossbeam slot rod and are respectively pivotally connected to the corresponding scissor-type telescopic trusses.

[0009] Preferably, a protrusion is formed on both sides of one end of the beam side end rod, and a groove is formed between the two protrusions; a group of first openings cooperating with the protrusions are formed on both sides of the two ends of the beam slot rod; two groups of second openings cooperating with the protrusions are formed on both sides of the middle end of the beam slot rod; a number of bottom plate fixing units are connected to the middle part of the top surface of the beam slot rod; the beam side end rod is connected to the beam slot rod by snapping through the protrusion and cooperating with the first opening or the second opening.

[0010] Preferably, the foldable support plate includes two base plates and a plurality of hinges; the two base plates are hingedly connected to the base plate fixing unit via the hinges.

[0011] Preferably, the hinge is a 180-degree self-locking hinge.

[0012] Preferably, the length of the slide groove limits the angle between the truss member at the first end of the scissor-type telescopic truss and the vertical member; the angle ranges from 3.4° to 34°.

[0013] Preferably, the rear end bracket further comprises a hull rear plate, and the hull rear plate is detachably connected between the vertical rods.

[0014] Preferably, the periphery of the scissor-type telescopic truss is covered with PVC waterproof soft material.

[0015] Preferably, a plurality of bottom plate support bodies are connected to the beam slot rods on both sides of the bottom plate fixing unit.

[0016] The present invention adopts the above technical solution, so it has the following beneficial effects:

[0017] 1. The scissor-type telescopic truss is used as the side structure of the ship, and the friction of the rods and the self-locking of the plates are used to prevent inward retraction, which reduces the weight of the lifeboat and ensures the strength during use.

[0018] 2. The bottom of the ship adopts retractable rods, and buckles are used to ensure the stability of the retractable rods when expanding and contracting. Foldable support plates are hinged on the retractable rods to ensure the safety of personnel and the stability of the hull.

[0019] 3. It can be folded and unfolded in both the length and width directions. The volume after folding is less than 5% of the unfolded volume. It is portable and can be folded and unfolded quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a perspective view of a two-dimensional retractable light boat based on a truss structure after expansion according to an embodiment of the present invention;

[0021] Figure 2 A top view of a two-dimensional retractable light boat based on a truss structure after expansion according to an embodiment of the present invention;

[0022] Figure 3 This is a left side view of the unfolded two-dimensional retractable light boat based on the truss structure according to an embodiment of the present invention;

[0023] Figure 4 A three-dimensional diagram of a two-dimensional retractable light boat based on a truss structure according to an embodiment of the present invention after being retracted;

[0024] Figure 5 A left side view of a two-dimensional retractable light boat based on a truss structure after retraction according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic structural diagram of a side end rod of a beam according to an embodiment of the present invention;

[0026] Figure 7 A side view of the crossbeam slot rod and the crossbeam side end rod after contraction according to an embodiment of the present invention;

[0027] Figure 8 A top view of the crossbeam slot rod and the crossbeam side end rod after contraction according to an embodiment of the present invention;

[0028] Figure 9 Schematic diagram of the structure of a foldable support plate according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] Below according to the attached drawings Figures 1 to 9, gives the preferred embodiment of the present invention, and describes it in detail so that the functions and features of the present invention can be better understood.

[0030] See also Figures 1 to 9 A two-dimensional retractable light boat based on a truss structure according to an embodiment of the present invention includes a rear end bracket 4, two scissor-type telescopic trusses 1, a plurality of retractable rods and a plurality of foldable support plates 6; the first ends of the two scissor-type telescopic trusses 1 are respectively connected to the two sides of the rear end bracket 4; the two ends and the bottom of the scissor-type telescopic trusses 1 are connected by retractable rods; the foldable support plates 6 are connected to the retractable rods at the bottom of the scissor-type telescopic trusses 1.

[0031] The rear end bracket 4 includes two vertical rods, and a slide groove is provided at the lower end of the vertical rod; the scissors-type telescopic truss 1 includes a plurality of scissors units and two half-truss rods, each scissors unit includes two truss rods pivotally connected in the middle; the ends of the truss rods of two adjacent scissors units are pivotally connected to the ends of the corresponding truss rods; the top of the scissors unit at the first end of the scissors-type telescopic truss 1 is connected by a retractable rod and is pivotally connected to the corresponding vertical rod; the bottom end of the scissors unit at the first end of the scissors-type telescopic truss 1 is connected by a retractable rod and can be pivotally connected to the slide groove slidably along the slide groove; the top and bottom ends of the second end of the scissors-type telescopic truss 1 are respectively pivotally connected to the first end of the half truss rod; the second ends of the two half truss rods are pivotally connected to each other; the second ends of the half truss rods of the two scissors-type telescopic trusses 1 are connected by a retractable rod; the bottom ends of the corresponding truss rods of the two scissors-type telescopic trusses 1 are connected by a retractable rod.

[0032] The retractable rod comprises a crossbeam slot rod 3 and two crossbeam side end rods 2; the two crossbeam side end rods 2 are respectively snap-connected to the two ends of the crossbeam slot rod 3 and are respectively pivotally connected to the corresponding scissor-type telescopic trusses 1.

[0033] A protrusion is formed on both sides of one end of the beam side end rod 2, and a groove is formed between the two protrusions; a group of first openings 7 that cooperate with the protrusions are formed on both sides of the two ends of the beam slot rod 3; two groups of second openings that cooperate with the protrusions are formed on both sides of the middle end of the beam slot rod 3; a number of bottom plate fixing units 9 are connected to the middle part of the top surface of the beam slot rod 3; the beam side end rod 2 is connected to the beam slot rod 3 by snapping the protrusion into the first opening 7 or the second opening.

[0034] The foldable support plate 6 includes two bottom plates and a plurality of hinges; the two bottom plates are hingedly connected to the bottom plate fixing unit 9 through the hinges.

[0035] The hinge adopts 180-degree self-locking hinge. When the hull is unfolded, the foldable support plate 6 is pressed down by the human body's gravity to achieve a tightly fitting self-locking structure, preventing the hull, especially the side trusses, from shrinking along the length direction of the ship.

[0036] The length of the slide groove limits the angle between the truss member at the first end of the scissor-type telescopic truss 1 and the vertical member; the angle ranges from 3.4° to 34°, ensuring that the end can slide freely within this range without exceeding this range.

[0037] The rear end bracket 4 further includes a hull rear plate 5, which is detachably connected between the vertical rods.

[0038] The periphery of the scissor-type telescopic truss 1 is covered with PVC waterproof soft material.

[0039] A plurality of bottom plate support bodies 8 are connected to the crossbeam slot rods on both sides of the bottom plate fixing unit 9 .

[0040] The present invention has been described in detail above with reference to the embodiments of the accompanying drawings. A person skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention. The scope of protection of the present invention shall be determined by the scope defined in the appended claims.

Claims

1. A two-dimensional retractable light boat based on a truss structure, characterized in that: The invention comprises a rear end bracket (4), two scissor-type telescopic trusses (1), a plurality of retractable rods and a plurality of foldable support plates (6); the first ends of the two scissor-type telescopic trusses (1) are respectively connected to the two sides of the rear end bracket (4); the two ends and the bottom of the scissor-type telescopic trusses (1) are connected via the retractable rods; the foldable support plates (6) are connected to the retractable rods at the bottom of the scissor-type telescopic trusses (1); The rear end bracket (4) includes two vertical rods, and a slide groove is provided at the lower end of the vertical rod; the scissor-type telescopic truss (1) includes a plurality of scissor-type units and two half truss rods, and each of the scissor-type units includes two truss rods pivotally connected in the middle; the ends of the truss rods of two adjacent scissor-type units are pivotally connected to the ends of the corresponding truss rods; the top end of the scissor-type unit at the first end of the scissor-type telescopic truss (1) is connected to the corresponding vertical rod through a retractable rod; the first end of the scissor-type telescopic truss (1) The bottom end of the scissor-type telescopic truss (1) is connected via a retractable rod and can be pivoted in the slide slot in a sliding manner along the slide slot; the top and bottom ends of the second end of the scissor-type telescopic truss (1) are respectively pivoted to the first end of a half truss rod; the second ends of the two half truss rods are pivoted to each other; the second ends of the half truss rods of the two scissor-type telescopic trusses (1) are connected via the retractable rod; the bottom ends of the corresponding truss rods of the two scissor-type telescopic trusses (1) are connected via the retractable rod; The retractable rod comprises a crossbeam slot rod (3) and two crossbeam side end rods (2); the two crossbeam side end rods (2) are respectively snap-connected to the two ends of the crossbeam slot rod (3) and are respectively pivotally connected to the corresponding scissor-type telescopic trusses (1); A protrusion is formed on both sides of one end of the crossbeam side end rod (2), and a groove is formed between the two protrusions; a group of first openings (7) cooperating with the protrusions are formed on both sides of the two ends of the crossbeam slot rod (3); two groups of second openings cooperating with the protrusions are formed on both sides of the middle end of the crossbeam slot rod (3); a plurality of bottom plate fixing units (9) are connected to the middle part of the top surface of the crossbeam slot rod (3); the crossbeam side end rod (2) is snap-connected to the crossbeam slot rod (3) through the protrusion cooperating with the first opening (7) or the second opening.

2. The two-dimensional collapsible light boat based on a truss structure according to claim 1, characterized in that: The foldable support plate (6) comprises two base plates and a plurality of hinges; the two base plates are hingedly connected via the hinges and connected to the base plate fixing unit (9).

3. The two-dimensional collapsible light boat based on a truss structure according to claim 2, characterized in that: The hinge adopts a 180-degree self-locking hinge.

4. The two-dimensional collapsible light boat based on a truss structure according to claim 1, characterized in that: The length of the slide groove limits the included angle between the truss member at the first end of the scissor-type telescopic truss (1) and the vertical member; the included angle ranges from 3.4° to 34°.

5. The two-dimensional collapsible light boat based on a truss structure according to claim 1, characterized in that: The rear end bracket (4) further comprises a hull rear plate (5), and the hull rear plate (5) is detachably connected between the vertical rods.

6. The two-dimensional collapsible light boat based on a truss structure according to claim 1, characterized in that: The periphery of the scissor-type telescopic truss (1) is covered with PVC waterproof soft material.

7. The two-dimensional collapsible light boat based on a truss structure according to claim 1, characterized in that: A plurality of bottom plate support bodies (8) are connected to the beam slot rods (3) on both sides of the bottom plate fixing unit (9).

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