3d printing system, apparatus and method for reinforcing geogrids

Abstract

This invention provides a 3D printing system, apparatus, and method for reinforcing geogrids, belonging to the field of engineering retaining structure technology. It includes: a chamber printing module for printing chamber portions in a plant cultivation structure, the chambers having a storage space and openings at the top and bottom; a perforated grid printing module for printing perforated grid portions in the plant cultivation structure, the perforated grids being non-sealed and connected to the lower opening of the aforementioned chamber portions; and a material supply system for providing printing material to the chamber printing module and the perforated grid printing module. This invention comprehensively avoids problems such as difficulty in plant rooting on geogrids, poor growth, uncontrolled root growth, and plant tilting, enhancing the bond between plant roots and geogrids, strengthening soil stability, improving the plant growth environment, promoting healthy and robust plant growth, increasing plant survival rate, reducing the need for replanting and maintenance, and contributing to the maintenance of a healthy ecosystem.

Description

Technical Field

[0001] This invention belongs to the field of engineering embankment technology, and specifically relates to a 3D printing system, device and method for reinforcing geogrids. Background Technology

[0002] Geogrid is a mesh-like structural material made of polymer materials, characterized by high strength, corrosion resistance, and good flexibility. It is commonly used to reinforce soil, such as in highway subgrades, slopes, and river embankments. Through the interlocking effect between the mesh and the soil, it distributes the load and prevents soil deformation.

[0003] While traditional geogrids can reinforce soil, they lack ecological functions. Scientists have discovered that plant roots naturally form structures similar to "biogrids" in the soil, enhancing soil stability through entanglement and bonding. Therefore, researchers have experimented with combining artificial geogrids with plant roots to create a "double-reinforced" system, which offers numerous advantages:

[0004] The geogrid provides immediate reinforcement; as plant roots grow and extend over time, they gradually fill the gaps in the geogrid mesh, forming a denser, reinforced network that progressively strengthens the soil. Vegetation reduces soil erosion and improves the environment, while the geogrid provides support for the initial growth of the plants. It also reduces the amount of purely engineering materials used, lowering maintenance costs.

[0005] Despite the significant advantages of combining earthwork grids with plant root systems, the growth characteristics of the plants themselves remain a core bottleneck for current widespread adoption. Existing technologies require extremely high "compliance" with plants, and in actual engineering projects, it is often difficult to achieve ideal plant growth results, preventing the "bio-engineering synergistic reinforcement" solution from fully realizing its advantages.

[0006] To ensure the stability of the grid structure, plant varieties with strong adaptability and vigorous root systems are not necessarily the most suitable choice. Conversely, selecting plants with relatively poor adaptability and weak root systems cannot guarantee the plants' growth. Therefore, grid installation is often accompanied by mechanical compaction and soil compaction, which makes it difficult for plant seeds to take root or causes seedlings to die due to poor soil aeration. In addition, during growth, plant roots may avoid the grid and grow in softer areas instead of penetrating the mesh as designed. Furthermore, in mixed planting, different plant roots may compete for grid space, disrupting the intended mechanical distribution.

[0007] The introduction of 3D printing technology has opened up new possibilities for this field. 3D printing, also known as additive manufacturing, is a manufacturing technology that builds three-dimensional objects by adding materials layer by layer. Its core principle is to slice a computer-aided design model into two-dimensional thin layers, and then stack them layer by layer through methods such as nozzles, lasers, or powder sintering to form the final shape.

[0008] 3D printing can precisely control the material deposition path, creating complex topological structures that are difficult to achieve with traditional processes. It can reduce the amount of material used and also customize civil grids, providing new solutions for the further improvement of civil grids.

[0009] In summary, how to combine 3D printing technology to provide a method that can improve the bonding between plant roots and geogrids is a technical problem that urgently needs to be solved. Summary of the Invention

[0010] The purpose of this invention is to overcome the shortcomings of the prior art and provide a 3D printing system, device and method for reinforcing geogrids. The resulting plant cultivation structure accommodates the plant body while guiding the growth of plant roots, thereby improving the bond between plant roots and geogrids.

[0011] This invention provides a 3D printing device for reinforcing geogrids, comprising:

[0012] A chamber printing module for printing chamber portions in plant cultivation structures, wherein the chamber has a storage space and openings at the top and bottom;

[0013] A slot printing module is used to print the slot section in a plant cultivation structure. The slot is a non-sealed structure and is connected to the lower opening of the aforementioned chamber section.

[0014] The material supply system is used to supply printing materials to the chamber printing module and the slot printing module.

[0015] Furthermore, the perforated grid includes one or more connecting plates, which are interconnected by connecting rods, forming several fence units together, each fence unit having a hollow area.

[0016] Furthermore, the connecting disc has a larger surface area than the connecting rod.

[0017] Furthermore, it also includes a brittle layer printing module for printing brittle layers in plant cultivation structures; the brittle layer has low hardness and can break during plant root growth due to radial pressure applied by the roots or natural degradation of the material.

[0018] The aforementioned material supply system is used to provide the brittle layer printing module with printing materials for making brittle layers, the printing materials including biodegradable materials.

[0019] Furthermore, the brittle layer includes a first brittle layer disposed between the drain cell and the bottom of the chamber.

[0020] Furthermore, the brittle layer includes a second brittle layer disposed between the connecting disc and the connecting rod.

[0021] Furthermore, the longitudinal thickness of the brittle layer is less than the longitudinal thickness of the connecting disc and less than the longitudinal thickness of the connecting rod.

[0022] Furthermore, it also includes a nutrient tank printing module for printing the nutrient tank portion in the plant cultivation structure, wherein the nutrient tank and the chamber are connected via an input channel;

[0023] The nutrient tank has a storage space for storing slow-release plant fertilizer, and a water collection port is provided on the nutrient tank for flow.

[0024] The height of the input channel shall not be less than half the maximum height of the nutrient tank.

[0025] This invention provides a printing method implemented by the 3D printing apparatus as described in any one of the above-described methods, comprising the following steps:

[0026] S1 prints the chamber portion inside the geogrid using the chamber printing module;

[0027] S2 prints a slotted section at the bottom of the chamber section using a slotted section printing module. The slotted section and the chamber section together form a plant cultivation structure for cultivating plants.

[0028] The present invention provides a 3D printing system, including a 3D printing reinforcement device as described in any one of the above-described methods.

[0029] By adopting the above technical solution, this invention, as an example, has the following advantages and positive effects compared with the prior art:

[0030] The chamber section is printed using a chamber module, and the slotted section is printed using a slotted module. Together, the chamber and slotted sections form the plant cultivation structure. This modular printing system reduces assembly steps and material waste while improving the overall structural integrity.

[0031] The chamber provides storage space for the plant, serving to contain and limit its movement. The connecting discs and rods of the perforated grid form an optimized mesh, ensuring structural strength to support the plant while providing a natural path for root penetration, promoting close integration between the roots and the grid.

[0032] The brittle layer initially provides support for the root system. During the normal growth of the root system, it breaks under stress, guiding the plant roots to extend into the pores or through the hollow areas of the pores, thus achieving mechanical adaptation throughout the plant's growth cycle.

[0033] The nutrient tank is connected to the chamber for circulation, and it automatically irrigates only when the liquid level reaches the preset height, avoiding over-fertilization and ensuring stable plant growth.

[0034] This invention can comprehensively avoid problems such as difficulty in rooting plants on earthen grids, poor growth, uncontrolled root growth, and plant tilting. It enhances the connection between plant roots and earthen grids, improves soil stability, improves the plant growth environment, promotes healthy and robust plant growth, increases plant survival rate, reduces the need for replanting and maintenance, and helps maintain a healthy ecosystem. Attached Figure Description

[0035] Figure 1 The structural block diagram of the 3D printing device for reinforcing geogrid provided by the present invention.

[0036] Figure 2 This is a schematic diagram of the plant cultivation structure provided by the present invention.

[0037] Figure 3 for Figure 2 A schematic diagram of the structure of the slotted grid.

[0038] Figure 4 This is a schematic diagram of a plant cultivation structure with a brittle layer provided by the present invention, which is another embodiment.

[0039] Figure 5 This is a schematic diagram of the brittle layer provided by the present invention, which is another embodiment.

[0040] Figure 6 This is a schematic diagram showing the connection between the nutrient tank and the plant cultivation structure provided by the present invention.

[0041] Figure 7 A flowchart illustrating the steps of the printing method provided by this invention.

[0042] Explanation of reference numerals in the attached figures

[0043] 3D printing device 10 for reinforcing geogrid, chamber printing module 11, and slotted grid printing module 12;

[0044] Plant cultivation structure 100;

[0045] Chamber 200, slatted chamber 210, connecting plate 220, connecting rod 230, fence unit 240, hollow area 250;

[0046] First brittle layer 300;

[0047] Second brittle layer 400;

[0048] Nutrient tank 500, inlet channel 510, water collection port 520;

[0049] Fertilizer 20. Detailed Implementation

[0050] The technical solutions disclosed in this invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be considered isolated; they can be combined with each other to achieve better technical effects. In the accompanying drawings of the following embodiments, the same reference numerals appearing in each drawing represent the same features or components, which can be applied to different embodiments. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0051] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the conditions under which the invention can be implemented. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of the invention, should fall within the scope of the technical content disclosed in the invention. The scope of the preferred embodiments of the present invention includes other implementations, wherein functions may be performed not in the order stated or discussed, including substantially simultaneously or in reverse order, depending on the functions involved. This should be understood by those skilled in the art to which the embodiments of the present invention pertain.

[0052] Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0053] This invention provides a 3D printing device 10 for reinforcing geogrids, such as... Figure 1 As shown.

[0054] include:

[0055] The chamber printing module 11 is used to print the chamber 200 portion of the plant cultivation structure 100. For example... Figure 2 As shown, the chamber 200 has a storage space and openings at the top and bottom.

[0056] As a typical implementation, the chamber printing module includes a printhead assembly, a three-dimensional motion control system, and a path planning unit. The printhead is equipped with replaceable nozzles, and its outlet size is adapted to the structural accuracy requirements; the motion control system supports the coordinated displacement of the printhead in the X / Y / Z axis directions, enabling free construction of spatial trajectories.

[0057] During the printing process, the spatial trajectory of the print head is controlled by a three-dimensional motion control system to form a ring-shaped, layer-by-layer stack, constructing a columnar cavity with a predetermined height and diameter, and featuring a double-opening structure.

[0058] As an example rather than a limitation, the upper opening maintains an outward-expanding trumpet-shaped edge to accommodate the growing space requirements of plants, while the lower opening edge forms a docking port with the 210 slot module.

[0059] The slot printing module 12 is used to print the slot 210 part in the plant cultivation structure 100. The slot 210 is a non-sealed structure and is connected to the lower opening of the aforementioned chamber 200 part.

[0060] In a typical implementation, the slotted printing module includes a motion control unit, a printhead assembly, and a material supply system, wherein:

[0061] The motion control unit is responsible for driving the print head to move along a preset path in three-dimensional space.

[0062] The printhead assembly includes at least one extrusion nozzle for melting and spraying printing material.

[0063] The material supply system continuously delivers printing material to the printhead.

[0064] like Figure 2 As shown, a drain 210 is connected to the bottom of the chamber 200.

[0065] like Figure 3 As shown, the drain 210 includes one or more connecting discs 220, which can be circular, square, or other geometrically designed. The number and shape of the connecting discs 220 can be adjusted according to specific plant cultivation needs to adapt to the root growth patterns of different plants.

[0066] The connecting plates 220 are interconnected by connecting rods 230, and the connecting plates 220 and connecting rods 230 together form a plurality of fence units 240, each fence unit 240 having a hollow area 250.

[0067] The hollow area 250 allows plant roots to pass through, facilitating root establishment while establishing a connection between the plant and the slot 210, thus limiting the position of the plant roots.

[0068] This limiting design effectively prevents plant roots from avoiding the grid during growth and failing to penetrate it. Simultaneously, by placing each plant separately within the plant cultivation structure 100, it also avoids the problem of mixed planting where different plant roots might compete for grid space, disrupting the pre-designed mechanical distribution.

[0069] By restricting the plant's root system and confining the plant itself within the plant cultivation structure 100, damage or displacement caused by tilting or external interference during plant growth can be avoided.

[0070] Preferably, the connecting disc 220 has a larger surface area than the connecting rod 230.

[0071] As the meeting point of multiple connecting rods 230, the connecting plate 220 has a larger surface area, which can effectively disperse the load from the connecting rods 230 in different directions, such as the pressure of plant root growth and external impact, and avoid stress concentration that could lead to local breakage.

[0072] Specifically, for example, the radial expansion force generated during the growth of plant roots can be resisted by the large surface area connecting plate 220 through higher structural stiffness, thus preventing the fence unit 240 from failing due to compression.

[0073] The perforated section and the chamber section together constitute a plant cultivation structure for cultivating plants. This plant cultivation structure can be set on the surface of the ramp structure formed or reinforced by the earthen grid, or below the surface. The plants located in the plant cultivation structure will at least partially come into contact with the outside air and sunlight.

[0074] Optionally, a brittle layer printing module is also included for printing the brittle layer in the plant cultivation structure 100.

[0075] As a typical implementation, the brittle layer printing module includes at least a printhead.

[0076] Optionally, it also includes a temperature control unit to control the printing temperature of the brittle layer and prevent thermal stress from causing deformation of the brittle layer.

[0077] The brittle layer has low hardness and can break during plant root growth due to radial pressure applied by the roots or natural degradation of the material.

[0078] The aforementioned material supply system is used to provide the brittle layer printing module with printing materials for making brittle layers, the printing materials including biodegradable materials.

[0079] As an example rather than a limitation, the brittle layer material can be selected from polylactic acid (PLA), polyhydroxyalkanoate (PHA), or starch-based composites, and the degradation rate needs to match the plant root growth cycle, such as being designed for partial degradation in 3-6 months.

[0080] When using biodegradable materials as the material for making the brittle layer, the printing consumables for making the brittle layer are supplied to the brittle layer printing module through a separately set biodegradable material area.

[0081] After the stencil 210 module finishes printing, the brittle layer printing module is then activated to print the first brittle layer 300 above the stencil 210, as shown below. Figure 4 As shown, the first brittle layer 300 is located between the slot 210 and the bottom of the chamber 200.

[0082] For example, the connection between the first brittle layer 300 and the perforated grid 210 can be achieved by thermal bonding.

[0083] For example, a brittle layer can be printed before the structural layer has completely cooled, and the residual heat can be used to achieve thermal bonding.

[0084] Alternatively, mechanical interlocking can be used, where matching surface structures are provided on the contact surfaces of the first brittle layer 300 and the perforated grid 210, and the connection is achieved through physical interlocking.

[0085] Specifically, for example, the bottom surface of the brittle layer is a continuous serrated groove, and the top surface of the slot 210 is a corresponding protrusion.

[0086] The brittle layer surface is a hexagonal recessed array, and the surface of the 210 slot is a matching raised honeycomb.

[0087] The bottom surface of the brittle layer is covered with conical pits, and the top surface of the slot 210 is provided with corresponding conical protrusions.

[0088] In another embodiment, after the slot 210 module finishes printing the slot 210, the brittle layer printing module, the second brittle layer 400, is activated, such as... Figure 5 As shown, the second brittle layer 400 is located between the connecting disc 220 and the connecting rod 230.

[0089] Plant roots are allowed to break through the brittle layer and extend into adjacent fence units 240 during the later stages of growth, while other main structures, connecting discs 220 and connecting rods 230 remain intact. Optionally, a protective mesh layer is covered on top of the brittle layer.

[0090] The protective mesh layer is breathable, such as a thin layer of PLA mesh, to prevent the planting medium from directly compressing the brittle layer and causing it to break prematurely.

[0091] Optionally, the longitudinal thickness of the brittle layer is less than the longitudinal thickness of the connecting disc 220 and less than the longitudinal thickness of the connecting rod 230.

[0092] The brittle layer, with its low hardness, maintains structural integrity and provides stable support for the plant during the early stages of root growth. When the root system reaches a certain stage, such as when the taproot matures, the brittle layer fractures spontaneously under radial pressure from the roots, freeing up space for further root expansion into the slot 210, thus avoiding the physical constraints imposed on the roots by traditional rigid structures. Because of its low hardness, the plant roots can break through the structure without excessive compression, reducing mechanical damage to root tip cells.

[0093] It also includes a nutrient tank 500 printing module, used to print the nutrient tank 500 portion of the plant cultivation structure 100, such as... Figure 6 As shown, the nutrient tank 500 and the chamber 200 are connected by an inlet channel 510.

[0094] The nutrient tank 500 has a storage space for storing slow-release plant fertilizer. Typically, the slow-release plant fertilizer is a granular fertilizer that accumulates at the bottom of the nutrient tank 500 and can slowly dissolve and release in water.

[0095] The nutrient tank 500 is equipped with a water collection port 520, through which liquid enters the nutrient tank 500. The liquid mainly comes from artificial irrigation or natural rainfall. After entering the nutrient tank 500, the liquid comes into contact with the slow-release plant fertilizer at the bottom. The dissolved fertilizer components and the liquid mix to form a mixed solution, which then flows into the chamber 200 through the inlet channel 510. The solution comes into contact with the plant roots that are still in the chamber 200 or on the brittle layer, or have already broken through the brittle layer, providing growth nutrients.

[0096] The height of the input channel 510 is not less than half the maximum height of the nutrient tank 500.

[0097] With this setup, the mixed solution can only enter the chamber 200 through the inlet channel 510 when the liquid level in the nutrient tank 500 reaches a certain height. After the liquid level drops, irrigation will automatically stop to avoid adverse effects on plant growth caused by excessive fertilizer concentration and fertilization frequency.

[0098] This invention provides a printing method implemented using a 3D printing apparatus as described in any of the above-described embodiments, such as... Figure 7 As shown, it includes the following steps:

[0099] S1 prints chamber 200 within the geogrid using the chamber printing module.

[0100] As an example, and not a limitation, the steps for executing the print slot 210 module include:

[0101] a) Fix the substrate to the printing platform and preheat it to the set temperature;

[0102] b) Generate motion trajectories based on the slice data of the leaky grid 210 model;

[0103] c) Molten material is deposited layer by layer through the nozzle to form a grid-like sprue 210. The base of the connecting plate 220 is printed first, then the path of the connecting rod 230 is extended, and finally the outline of the fence unit 240 is closed.

[0104] Real-time monitoring of extrusion pressure ensures that the material at the junction of connecting rod 230 and connecting disc 220 is fully fused.

[0105] d) After printing, remove the temporary support structure and clean the residue in the hollow area 250 of fence unit 240.

[0106] S2 prints a slotted grid 210 at the bottom of the chamber 200 using a slotted grid printing module. The slotted grid 210 and the chamber 200 together form a plant cultivation structure 100 for cultivating plants.

[0107] As an example and not a limitation, for the mesh-like support structure required for slot 210, the motion control unit generates the printing path according to the following logic:

[0108] The 3D model is sliced ​​into layers for printing, each layer containing a connecting plate 220 section, a connecting rod 230 section, and a fence unit 240 boundary.

[0109] Generate paths for connecting disc 220 and connecting rod 230. Identify the cross-sectional area of ​​connecting disc 220 in each layer and generate paths for connecting disc 220 to fill the plane of each layer. Optionally, concentric circles or spiral paths can avoid stress concentration at the center and are suitable for disc structures. If the connecting disc 220 is irregular in shape, such as a polygon, adjust it to parallel fill of the corresponding contour.

[0110] A parallel straight path is generated along the axis of connecting rod 230, and the angle of the path between adjacent layers can be finely adjusted to enhance the interlayer bonding force. A closed loop path is generated along the outer contour of fence unit 240 to ensure clear boundaries of hollow area 250.

[0111] Insert dot-shaped or line-shaped temporary supports (non-full grid supports) into the edges of the suspended connecting rod 230 or connecting plate 220 to ensure that there is no sagging or deformation during the printing process.

[0112] Optionally, it also includes printing a brittle layer using a brittle layer printing module, the brittle layer including a first brittle layer 300 disposed between the slot 210 and the bottom of the chamber 200, and / or a second brittle layer 400 located between the connecting plate 220 and the connecting rod 230.

[0113] As an example, the layered printing process includes the following steps:

[0114] Step 1: Print the main body of the 210 slot, and simultaneously generate the fitting protrusion on the top;

[0115] Step 2: Switch to the brittle layer printing module, print matching grooves on the bottom surface to precisely engage with the protrusions of slot 210;

[0116] As an example, the layered printing process includes the following steps:

[0117] Step 1: Print the slot 210. At the junction of the connecting plate 220 and the connecting rod 230, a pre-set interlocking groove, such as a serrated or grooved structure, is provided to provide printing points for the subsequent brittle layer.

[0118] Step 2: Start the brittle layer printing module and inject the material into the reserved interlocking groove along the junction path of the connecting disk 220 and the connecting rod 230. A dense but low-hardness brittle layer is formed by layer stacking or continuous spiral path.

[0119] Step 3: Before the brittle layer is fully cured, apply slight hot pressing or vibration to make it tightly interlock with the main body of the slot 210.

[0120] Optionally, step 3: As an example, the layered printing process includes the following steps:

[0121] Step 1: Print the main body of the 210 slot, and simultaneously generate the fitting protrusion on the top;

[0122] Step 2: Switch to the brittle layer printing module, print matching grooves on the bottom surface to precisely engage with the protrusions of slot 210;

[0123] In another embodiment, after the slot 210 module finishes printing the slot 210, the brittle layer printing of the second brittle layer 400 is started, so that the second brittle layer 400 is located between the connecting plate 220 and the connecting rod 230.

[0124] This allows plant roots to break through the brittle layer and extend into adjacent fence units 240 during the later stages of growth, while other main structures, such as connecting plates 220 and connecting rods 230, remain intact.

[0125] As an example, the layered printing process includes the following steps:

[0126] Step 1: Print the slot 210. At the junction of the connecting plate 220 and the connecting rod 230, a pre-set interlocking groove, such as a serrated or grooved structure, is provided to provide printing points for the subsequent brittle layer.

[0127] Step 2: Start the brittle layer printing module and inject the material into the reserved interlocking groove along the junction path of the connecting disk 220 and the connecting rod 230. A dense but low-hardness brittle layer is formed by layer stacking or continuous spiral path.

[0128] Step 3: Before the brittle layer is fully cured, apply slight hot pressing or vibration to make it tightly interlock with the main body of the slot 210.

[0129] Optionally, after step 3, a protective mesh layer covering the brittle layer is printed on top of the printed brittle layer.

[0130] Optionally, the system also includes a nutrient tank 500 that is in circulation with the chamber 200, which is printed via a nutrient tank 500 printing module.

[0131] As a typical implementation, the nutrient tank 500 printing module includes at least a fertilizer storage chamber 200 printing sub-module and an input channel 510 printing sub-module.

[0132] The liquid storage chamber printing submodule prints the outer shell in layers to form a hollow fertilizer storage chamber 200. An opening and closing door, such as a side-push sliding or hinged structure, is reserved at a specified height to facilitate subsequent fertilizer filling.

[0133] Water inlets 520 are printed on the outer shell. For example, an array of micropores can be printed on the upper surface of the outer shell, which are staggered to uniformly diffuse the water flow.

[0134] The input channel 510 is created on the side of the housing by printing the input channel 510 submodule, ensuring that its height is always no less than half the total height of the nutrient tank 500.

[0135] Optionally, it may also include a waterproofing coating submodule.

[0136] Then, the impermeable layer is applied layer by layer to the inner wall of the fertilizer storage chamber 200 through the impermeable layer coating submodule.

[0137] Furthermore, the brittle layer can also be achieved through one of the following two methods:

[0138] Option 1 involves setting up breakpoint connections in the brittle layer structure. The technical feature of breakpoint connections is that the connecting part uses less material than other parts, and is connected only through a small area, making it less robust and easier to break.

[0139] Option 2, the aforementioned brittle structure, is constructed using a nutrient solution vial connected by a break-point joint. The technical characteristic of this break-point joint is that the connecting portion uses less material than other parts, connecting only a small area, resulting in lower strength and easier breakage. The nutrient solution vial refers to a small cavity with an opening at the top, and the nutrient solution refers to beneficial plant growth agents, such as nitrogen, phosphorus, and potassium fertilizers.

[0140] Furthermore, regarding the brittle structure, when nutrient components are included, it can be configured such that the nutrient content in the lower part is lower than that in the upper part. This configuration facilitates upward growth of the plant for the purpose of obtaining nutrients.

[0141] The present invention provides a 3D printing system, including the 3D printing reinforcement system as described in any one of the above-described methods.

[0142] Within the scope of this disclosure, terms such as “comprising” should be interpreted by default as inclusive or open-ended, rather than exclusive or closed, unless expressly defined as such. All technical, scientific, or other terms shall be interpreted as understood by one of those skilled in the art, unless defined as such. Public terms found in dictionaries should not be interpreted in an overly idealistic or impractical manner in the context of the relevant technical documentation, unless expressly defined as such in this disclosure.

[0143] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0144] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A 3D printing device for reinforcing geogrids, characterized in that... include: A chamber printing module for printing chamber portions of a plant cultivation structure within a geogrid, the chamber having a storage space and openings at the top and bottom; A slot printing module is used to print the slot section in a plant cultivation structure. The slot is a non-sealed structure and is connected to the lower opening of the aforementioned chamber section. The material supply system is used to supply printing material to the chamber printing module and the stencil printing module. The perforated grid includes one or more connecting plates, which are interconnected by connecting rods. The connecting plates and connecting rods together form several fence units, each fence unit having a hollow area. This includes a brittle layer printing module for printing brittle layers in plant cultivation structures; the brittle layer has low hardness and can break during plant root growth due to radial pressure applied by the roots or natural material degradation; the aforementioned material supply system provides the brittle layer printing module with printing materials for making the brittle layer, including biodegradable materials. The brittle layer includes a first brittle layer disposed between the drain cell and the bottom of the chamber.

2. The 3D printing apparatus according to claim 1, characterized in that: The connecting disc has a larger surface area than the connecting rod.

3. The 3D printing apparatus according to claim 1, characterized in that: The brittle layer includes a second brittle layer disposed between the connecting disc and the connecting rod.

4. The 3D printing apparatus according to claim 1, characterized in that: The longitudinal thickness of the brittle layer is less than the longitudinal thickness of the connecting disc and less than the longitudinal thickness of the connecting rod.

5. The 3D printing apparatus according to claim 1, characterized in that: It also includes a nutrient tank printing module for printing the nutrient tank portion in the plant cultivation structure, wherein the nutrient tank and the chamber are connected via an input channel; The nutrient tank has a storage space for storing slow-release plant fertilizer, and a water collection port is provided on the nutrient tank for flow. The height of the input channel shall not be less than half the maximum height of the nutrient tank.

6. A printing method implemented by the 3D printing apparatus as described in any one of claims 1-5, characterized in that, Includes the following steps: S1 prints the chamber portion inside the geogrid using the chamber printing module; S2 prints a slotted section at the bottom of the chamber section using a slotted section printing module. The slotted section and the chamber section together form a plant cultivation structure for cultivating plants.

7. A 3D printing system, characterized in that, Includes the 3D printing apparatus according to any one of claims 1-5.

Images