Bionic curved surface modular landscape seat and construction method thereof

Abstract

The invention discloses a bionic curved surface modular landscape seat and a rapid construction method thereof, and belongs to the technical field of urban landscape facilities. The seat is composed of a force bearing base plate, a special-shaped anti-corrosion wood plate, a fast-inserting keel, a cavity partition plate and a drawer type light source module. The back face of the special-shaped plate forms a continuous bionic curved surface according to the ischium-thighbone pressure isoline, is consistent in thickness and different in outline and is connected with a T-shaped groove of the base plate in a buckled mode, a completely-open cavity is formed in the bottom, a partition plate drill hole is drilled for animals to drill, jump and hide, and a light source is hidden in a drawer groove in the back face of the seat plate and softly overflows after being subjected to high diffuse reflection of the cavity. The construction method comprises the steps of three-dimensional bionic modeling, NC cutting, vacuum pressurization corrosion prevention, on-site chassis-keel buckle insertion and partition plate and light source push-in, assembly can be completed without bolts, and one-step maintenance extraction is achieved. Human-animal sharing is achieved, construction is rapid, road-occupying-free maintenance is achieved, the manufacturing cost and the life cycle cost are both lower than those of a steel structure of the same grade, and the system is suitable for eco-friendly scenes such as parks, blocks and campuses.

Description

Technical Field

[0001] This invention relates to the field of urban landscape and small prefabricated public facilities technology, and in particular to eco-friendly landscape architecture, specifically a biomimetic curved modular landscape seat and its rapid construction method, which simultaneously meets the needs of human rest and animal habitat. Background Technology

[0002] With the promotion of concepts such as "park city" and "pet-friendly neighborhoods," outdoor seating is being given added value beyond its basic function of providing rest, including ecological benefits, interactive features, and rapid assembly. However, the landscape benches currently widely used in streets and parks are still mainly based on "fixed supports + flat panels," which have a limited structural form and function, and suffer from the following common defects: (1) The seating surface is mostly a simple flat or single-curved panel, without taking into account the difference in pressure distribution between the ischium and femur of the human body, which can easily lead to fatigue after sitting for a long time. (2) The seats are mostly solid or enclosed box-shaped, with the bottom space completely occupied, making it impossible for stray cats and dogs to enter, thus making it difficult to achieve the ecological goal of "human-animal sharing"; (3) The installation method generally adopts on-site bolts + metal angle brackets for fixing. There are many parts, high positioning accuracy requirements, long construction period, which is not conducive to batch and rapid deployment. (4) Nighttime lighting usually relies on pole-mounted streetlights, and the seats themselves have no light source, which not only wastes energy but also limits the flexibility of site design.

[0003] To address the aforementioned shortcomings, Chinese patent CN213030281U discloses a "multifunctional landscape bench" that conceals LED light sources within a fixed support frame, covers the top with a light-transmitting cover, and claims to conform to human bionics. However, this solution still has the following limitations: (1) Its “bionic” design is only reflected in the outer contour of the 3 mm thick resin light-transmitting cover, which is a thin-walled shell. Its essence is “appearance bionic”, without load-bearing curved surface design, which fails to alleviate fatigue during long-term riding. (2) Solid fixed bracket + fully enclosed light cover, the bottom space is completely closed, animals cannot enter, and the problem of "human-animal sharing" is not solved; (3) All plates are connected to the chassis and keel by bolts and screws with nuts, which requires a wrench on site. There are ≥30 parts, resulting in low construction efficiency. (4) Light source maintenance requires disassembling the keel and side door step by step, a total of 5 steps, which will take a long time to maintain in the later stage; (6) The light-transmitting cover is made of resin, which is prone to cracking and yellowing after outdoor ultraviolet aging, resulting in a short service life and no anti-glare measures for animals' vision.

[0004] Therefore, existing technologies have failed to simultaneously address the system requirements of "comfortable ride, animal-friendly, quick assembly, easy maintenance, and long lifespan".

[0005] Therefore, there is an urgent need for a new type of landscape seat with a structurally biomimetic curved surface, an open cavity at the bottom, a snap-fit ​​quick assembly, and a removable and maintainable light source to fill the market gap. Summary of the Invention

[0006] This invention aims to provide an eco-friendly landscape architecture—a biomimetic curved modular landscape seat and its rapid construction method; the seat adopts a structural-level biomimetic load-bearing curve, an open cavity at the bottom, snap-on rapid assembly, and a drawer-type maintainable lighting system, which simultaneously meets the needs of human sitting comfort and animal perching, jumping, and hiding, and significantly shortens on-site construction and subsequent maintenance time.

[0007] To achieve the above objectives, the present invention is implemented as follows: A biomimetic curved modular landscape seat, comprising: A load-bearing chassis, which is fixed to a concrete foundation by anchor bolts; Several irregularly shaped anti-corrosion wooden boards, the irregularly shaped anti-corrosion wooden boards having the same thickness and different outlines, and having a continuous biomimetic load-bearing curved surface processed on the back, are used to form a human sitting area. The quick-connect keel is inserted between the irregularly shaped anti-corrosion wooden boards along the length of the seat and is connected to the T-slot buckle on the load-bearing chassis, so that a cavity with a completely open bottom is formed between the irregularly shaped anti-corrosion wooden boards and the load-bearing chassis, which is used by animals to crawl, jump and hide. A cavity partition, wherein the surface of the cavity partition is provided with drill holes to divide the cavity into at least two layers of movable space along the height direction; The drawer-type light source module is hidden and installed on the back of the irregularly shaped anti-corrosion wooden board. It can be pulled out horizontally. The light source emits light only into the cavity and then diffuses softly from the bottom of the seat after being reflected by the high diffuse reflection coating.

[0008] This invention also proposes a method for constructing the aforementioned landscape seating, comprising: S1. Establish a three-dimensional model of the biomimetic load-bearing curved surface and unfold the irregular plate parts according to the "human-animal dual function" partition. S2 generates NC cutting files, and the factory performs vacuum pressure anti-corrosion treatment. S3 On-site concrete foundation was poured and anchor bolts were pre-embedded, and load-bearing chassis was installed; S4 Slide the quick-connect keel into the T-slot and pre-tighten the buckle; S5 is inserted from top to bottom into an irregularly shaped anti-corrosion wooden board to form a continuous curved seat surface; S6 Install the cavity partition and calibrate the alignment of the skip drill holes; S7 pushes in the drawer-type light source module to complete the wiring and waterproofing test.

[0009] Furthermore, the method for forming the irregularly shaped anti-corrosion wood board described in S2 includes: a. Use tangentially dried timber with a moisture content controlled at 10-15%; b. In 3D modeling software, the biomimetic load-bearing surface is unfolded into a machinable surface and divided into layers with a thickness of t=24-30mm along the direction of wood fibers; c. Generate a five-axis NC cutting path, and use a φ6-φ12mm cylindrical end mill to perform roughing and finishing two passes to obtain irregular blanks with consistent thickness and different contours; d. Vacuum pressure corrosion protection process: First, evacuate to -0.08 MPa and maintain for 30 min, then inject CCA-C preservative and pressurize to 0.6 MPa and maintain for 120 min, with a preservative loading ≥ 4.0 kg / m³. 3 ; e. Dry the wood a second time to a moisture content of 12±2%, and spray the surface with a water-based acrylic sealant to obtain the finished irregular-shaped anti-corrosion wood board.

[0010] Compared with the prior art, the present invention achieves at least the following profound, quantifiable, and system-level beneficial effects: 1. Structural-biomimetic coupling for load reduction: The irregularly shaped anti-corrosion wood board generates a three-dimensional continuous elastic surface based on the "ischial-femoral pressure contour line", which reduces the user's fatigue and thus achieves "structural" rather than "appearance" biomimicry in outdoor seating.

[0011] 2. Spatiotemporal sharing between humans and animals: The open cavity at the bottom, combined with the jumping hole partition, forms an animal habitat space that allows for "drilling-jumping-hiding," creating a shared space that can be used by both humans and animals without interfering with each other.

[0012] 3. Quick assembly: The snap-on-slide system significantly reduces the number of parts, requiring only a small number of workers to complete the assembly work on site; it also greatly reduces the time that municipal roads are closed, thus allowing it to be included in the "midnight project" operation window.

[0013] 4. One-step maintenance path: The drawer-type light source module can be pulled out horizontally in one go, reducing the maintenance steps from 5 steps in CN213030281U to 1 step, significantly reducing the time for a single operation and meeting the "zero road occupation" rapid response requirements for urban road traffic facility maintenance in GB 50688-2011.

[0014] 5. Eco-friendly light source: After being uniformly coated with a TiO2 high diffuse reflection coating, the 24V low-voltage COB light strip has an illuminance of 45 lx at the cavity outlet and 25 lx at 0.5m from the ground, with a uniformity U0=0.55, which is better than the minimum standard of CJJ 45-2015 for pedestrian walkways. There is no direct glare from the animal's perspective (about 0.15 m height), and the light is reflected off the bottom and around the perimeter before shining onto the ground.

[0015] 6. Material lifespan and carbon footprint: Vacuum-pressurized corrosion protection agent loading ≥4 kg / m 3 If high-quality wood such as Nordic red pine is used, the service life can be increased from 8 years for ordinary outdoor furniture to ≥15 years; the carbon emissions of the entire chair throughout its life cycle (30 years) are significantly reduced compared to the steel-painted solution, meeting the first-level indicator of "Green Product Evaluation Furniture" GB / T 35607-2017.

[0016] 7. Economic-Social Synergy: The overall cost of a single set of seats is lower than that of steel-bolted structures of the same grade, and the cost over the five-year life cycle is also reduced; at the same time, it provides an "animal-friendly" science popularization check-in point, giving urban furniture both public welfare and commercial value. Attached Figure Description

[0017] Figure 1 This is an isometric drawing of the installation process of the biomimetic curved modular landscape seat shown in this invention.

[0018] Figure 2 This is a schematic diagram showing the usage state of the biomimetic curved modular landscape seat shown in this invention.

[0019] Figure 3 This is a flowchart illustrating the construction method of the biomimetic curved modular landscape seat shown in this invention. Detailed Implementation

[0020] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0021] Example 1: A biomimetic public rest seat for both humans and cats, such as... Figures 1-2 : I. Overall Structure and Assembly The biomimetic curved modular landscape seat in this embodiment has a total length of 1.8 m, a width of 0.45 m, a seat height of 0.42 m, and a rated load of 2.5 kN / m. 2 .

[0022] The load-bearing chassis (1) is made of 12 mm hot-dip galvanized steel plate, with T-slots and anchor bolt holes cut out in one laser cut. The slot width is 14 mm and the depth is 6 mm. After shot blasting and rust removal, the average thickness of the hot-dip galvanized layer is 80 μm, which meets the 30-year corrosion protection requirements of GB / T 13912-2020 outdoor C4 environment. The on-site C30 concrete foundation is 150 mm thick, with 4 M16 stainless steel expansion anchor bolts pre-embedded, and the tightening torque is 120 N·m.

[0023] The quick-connect keel is made of 6063-T5 aluminum alloy extruded profile with a cross-section of "cross + barb" shape, running the length of the seat, and with 5° chamfered ends. Three keels are arranged along the length of the seat, spaced 600 mm apart. During assembly, slide the keel into the bottom of the T-slot; a light tap will produce a "click" locking sound. The measured pull-out resistance is ≥3.2 kN / keel.

[0024] The irregularly shaped anti-corrosion wooden board (2) is generated into a free-form surface according to the "ischial-femoral pressure contour line". The thickness is uniformly 28mm and the contour difference is ≤2mm. After the snap-fit, the gap between adjacent boards is 1.5mm (tolerance ±0.3mm). A 20mm×8mm longitudinal positioning groove is opened on each side of the bottom of the board. It is 0.1mm over the barb of the keel. After insertion, it forms a self-locking mechanism without the need for bolts.

[0025] II. Manufacturing process of irregularly shaped anti-corrosion wood boards (2): Raw material: Nordic red pine tangential plank, density 450 kg / m³ 3 The initial moisture content is 10%.

[0026] 3D unfolding: The pressure contour lines are mapped to NURBS surfaces on the Rhino+Grasshopper platform, and slices are made along the wood fiber direction. The slicing thickness is equal to the finished board thickness of 28mm to avoid loss of bending strength due to secondary planing.

[0027] Five-axis NC cutting: BIESSE Rover 3235, roughing with φ12mm cylindrical end mill (leaving 0.4 mm allowance) → finishing with φ6mm ball end mill (feed 8m / min, speed 18000rpm), surface profile ≤0.5mm, Ra≤12.5μm.

[0028] Vacuum pressure corrosion protection: Vacuuming equipment is used to apply pressure from -0.08 MPa for 30 minutes; CCA-C injection is performed, increasing the pressure to 0.6 MPa for 120 minutes; the chemical loading is 4.3 kg / m³. 3 Penetration depth ≥85%.

[0029] Secondary drying: Low-temperature dehumidification kiln at 45℃, moisture content 12%±1 after 24 hours; surface roller coating with 120g / m² of water-based acrylic sealant. 2 After curing for 24 hours, it can be put into storage.

[0030] III. Implementation of the cavity and partition: The cavity has a clear height of 280 mm, and two cavity partitions (5) are installed along the height direction with a spacing of 90 mm. The partitions are made of 18 mm bamboo oriented strand board (OSB), with a white-sprayed surface and φ100 mm skip holes with R5 chamfered edges for cats to jump over. 8 mm stainless steel pins are installed at the four corners of the partitions, corresponding to the pre-drilled holes in the keel; pressing them locks the partitions in place, and they can be manually pulled out to adjust the interlayer height.

[0031] IV. Arrangement of drawer-type light source modules: The light trough is an aluminum alloy U-shaped extrusion, 12mm high and 15mm wide, running the length of the trough. A 1mm × 45° micro-slit is milled into the inner side of the trough opening, and φ2mm round holes are evenly distributed at the bottom of the trough, spaced 10mm apart. The 24V COB LED strip has a power density of 14 W / m, a color temperature of 3000 K, and a color rendering index (CRI) Ra=82. Thermal grease is applied to the back of the LED strip, ensuring a tight fit against the trough wall. Maintenance is simple; just squeeze the end handle and pull it out horizontally. It has an IP65 waterproof rating.

[0032] The above-mentioned rapid construction method for biomimetic public rest seats shared by humans and cats can be found in [link to documentation]. Figure 3 : On-site 3-person work process: 1. Foundation positioning → Anchor bolt tightening; 2. Slide in the 3 quick-connect keel rods and lock them in place; 3. Insert 7 irregularly shaped anti-corrosion wooden boards from top to bottom; 4. Install two hollow partition plates and calibrate the skip drill holes; 5. Push in the drawer-type light source module, connect the wiring, and perform a waterproof test; Typically, the total assembly time for the above operations is 5 to 20 minutes, and the closed windows that occupy the road meet the requirements of "midnight project".

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A biomimetic curved modular landscape seat, characterized in that, include: A load-bearing chassis, which is fixed to a concrete foundation by anchor bolts; Several irregularly shaped anti-corrosion wooden boards, the irregularly shaped anti-corrosion wooden boards having the same thickness and different outlines, and having a continuous biomimetic load-bearing curved surface processed on the back, are used to form a human sitting area. The quick-connect keel is inserted between the irregularly shaped anti-corrosion wooden boards along the length of the seat and is connected to the T-slot buckle on the load-bearing chassis, so that a cavity with a completely open bottom is formed between the irregularly shaped anti-corrosion wooden boards and the load-bearing chassis, and the cavity is provided for animals to inhabit. A cavity partition, wherein the surface of the cavity partition is provided with drill holes to divide the cavity into at least two layers of movable space along the height direction; The drawer-type light source module is hidden and installed on the back of the irregularly shaped anti-corrosion wooden board. It can be pulled out horizontally. The light source emits light only into the cavity and then diffuses softly from the bottom of the seat after being reflected by the high diffuse reflection coating.

2. The biomimetic curved modular landscape seat according to claim 1, characterized in that, The irregularly shaped anticorrosive wood panels are NC cut in the factory to form differentiated contours, and then subjected to vacuum pressure anticorrosive treatment, with the preservative penetration ≥85%.

3. The biomimetic curved modular landscape seat according to claim 1, characterized in that, The diameter of the jumping hole in the cavity partition is 80-120mm, and the rounded corner R of the hole edge is ≥5mm, for animals to jump.

4. The biomimetic curved modular landscape seat according to claim 1, characterized in that, The drawer-type light source module is a 24V low-voltage COB light strip with a color temperature of 3000K and a color rendering index Ra>80. The outer wall of the light trough is provided with a 1mm micro-slit, and the bottom wall is provided with a φ2mm dot matrix hole. The light is emitted only downwards and laterally.

5. The biomimetic curved modular landscape seat according to any one of claims 1-4, characterized in that, The inner wall of the cavity and the upper surface of the cavity partition are coated with a high diffuse reflection white coating with a TiO2 content of ≥20% and a hemispherical reflectivity ρ≥0.

85.

6. A rapid construction method for a biomimetic curved modular landscape seat, characterized in that, Includes the following steps: S1. Establish a three-dimensional model of the biomimetic load-bearing curved surface and unfold the irregular plate parts according to the "human-animal dual function" partition. S2 generates NC cutting files, and the factory performs vacuum pressure anti-corrosion treatment. S3 On-site concrete foundation was poured and anchor bolts were pre-embedded, and load-bearing chassis was installed; S4 Slide the quick-connect keel into the T-slot and pre-tighten the buckle; S5 is inserted from top to bottom into an irregularly shaped anti-corrosion wooden board to form a continuous curved seat surface; S6 Install the cavity partition and calibrate the alignment of the skip drill holes; S7 pushes in the drawer-type light source module to complete the wiring and waterproofing test.

7. The rapid construction method for biomimetic curved modular landscape seating according to claim 6, characterized in that, The method for forming the irregularly shaped anti-corrosion wood board described in S2 includes: a. Use tangentially dried timber with a moisture content controlled at 10-15%; b. In 3D modeling software, the biomimetic load-bearing surface is unfolded into a machinable surface and divided into layers with a thickness of t=24-30mm along the direction of wood fibers; c. Generate a five-axis NC cutting path, and use a φ6-φ12mm cylindrical end mill to perform roughing and finishing two passes to obtain irregular blanks with consistent thickness and different contours; d. Vacuum pressure corrosion protection process: First, evacuate to -0.08 MPa and maintain for 30 min, then inject CCA-C preservative and pressurize to 0.6 MPa and maintain for 120 min, with a preservative loading ≥ 4.0 kg / m³. 3 ; e. Dry the wood a second time to a moisture content of 12±2%, and spray the surface with a water-based acrylic sealant to obtain the finished irregular-shaped anti-corrosion wood board.

8. The rapid construction method for biomimetic curved modular landscape seating according to claim 7, characterized in that, During NC cutting, a finishing allowance of 0.3-0.5mm is retained, and the final surface contour error is ≤0.5mm, and the surface roughness Ra≤12.5μm to meet the requirements of the snap-fit ​​connection gap.

9. The rapid construction method for biomimetic curved modular landscape seating according to claim 6 or 7, characterized in that, For areas with a seat surface curve radius R≤400mm, a small diameter milling cutter of φ6mm is used to perform three root cleaning processes to prevent tearing of wood fibers and ensure the continuity of the biomimetic curved surface under pressure.

10. The rapid construction method for biomimetic curved modular landscape seating according to claim 6, characterized in that, After S7 is completed, the overall levelness is checked, and the allowable error is ≤2mm. Then, elastic positioning glue is injected to lock the quick-connect keel (3) longitudinal displacement.

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