Agricultural management house based on cement blanket and steel tube grid structure and rapid disassembly and assembly process

Abstract

The invention discloses an agricultural management room based on a cement blanket and a steel pipe net rack structure and a rapid disassembly and assembly process, and relates to the technical field of pressure reducing valves. The agricultural management room comprises a steel pipe net rack body composed of hot galvanized pipes and frame rods, and the outer side of the steel pipe net rack body is covered with the cement blanket; the method further comprises the following steps that S1, the hot-dip galvanized pipes and the frame rods are in butt joint through the bosses and the inwards-concave connectors, and after gaskets are additionally arranged, the hot-dip galvanized pipes and the frame rods are locked through stainless steel bolts. The invention has the advantages that the structure adopts a composite material and a nested sealing design, is wind-resistant and corrosion-resistant, has strong waterproofness, can resist outdoor moisture and corrosion of pesticides and chemical fertilizers, and has long service life; modularized assembly does not need complex construction, 2-3 persons can complete building in a short time, the disassembled components can be reused, and the construction and transportation cost is greatly reduced. The painting slurry has the functions of self-cleaning and heat preservation, dust and pesticide residues are reduced, the indoor temperature is stabilized, the painting slurry is adaptive to multiple scenes such as storage, pump rooms and temporary rest, and the diversified requirements of agricultural production are flexibly met.

Description

Technical Field

[0001] This invention relates to the field of pressure reducing valve technology, and in particular to an agricultural management house based on a cement blanket and steel pipe mesh structure and a rapid disassembly and assembly process. Background Technology

[0002] In the process of modernizing agricultural production, the demand for various functional buildings in agricultural production bases is increasing, such as management rooms for storing pesticides and fertilizers, pump rooms for irrigation, dormitories for employees, and small-scale livestock sheds. However, traditional construction methods have many drawbacks: on the one hand, the construction process is cumbersome, involving multiple stages such as site leveling, foundation pouring, wall construction, and roof building, resulting in a long construction period and making it difficult to meet the urgent needs of temporary buildings in agricultural production; on the other hand, traditional building materials are used in large quantities, have high wastage rates, and are not reusable, leading to resource waste and increased costs. In addition, traditional buildings are relatively fixed in shape and cannot flexibly adapt to the diverse spatial needs of agricultural production.

[0003] To address these issues, we propose an agricultural management structure based on cement blanket and steel pipe grid, along with a rapid assembly and disassembly process. Summary of the Invention

[0004] The purpose of this invention is to solve the problems mentioned in the background art, and to propose an agricultural management house based on a cement blanket and steel pipe grid structure and a rapid disassembly and assembly process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An agricultural management structure based on a cement blanket and steel pipe grid frame includes a main body of steel pipe grid frame composed of hot-dip galvanized pipes and frame rods. The outer side of the main body of the steel pipe grid frame is covered with a cement blanket. The main body of the steel pipe grid frame is detachably connected by bolts, nuts, screws, and washers. The bolts and screws are threaded, and the nuts are fitted onto one end of the bolts. Door frames and window frames are installed on the main body of the steel pipe grid frame. The cement blanket is coated with plaster. After the cement blanket is sprayed with water and hardened, it forms an integral structure with the grid frame.

[0006] The cement blanket contains geotextile fibers, and its strength after hardening is similar to that of a reinforced concrete cast-in-place structure; the steel pipe grid and the cement blanket covering layer can be separated by removing the screws, allowing the materials to be reused.

[0007] In the above-mentioned agricultural management house based on a cement blanket and steel pipe frame structure, a fixing pin is fixedly installed at one end of the bolt, and the cement blanket is fixed to the main body of the steel pipe frame through the fixing pin.

[0008] In the above-mentioned agricultural management house based on a cement blanket and steel pipe frame structure, the fixing pin passes through the frame rod and the cement blanket in sequence, and the end of the fixing pin is fitted with a fixing cap. The fixing pin and the fixing cap are connected by a thread or a snap-fit ​​connection.

[0009] In the above-mentioned agricultural management house based on cement blanket and steel pipe grid structure, the door frame is fixedly connected to the frame rod by bolts, the gap between the door frame and the frame rod is filled with water-based polyurethane sealant, a sealing gap is provided between the door frame and the cement blanket, the frame rod is extruded from bamboo fiber and PP resin composite, and the inner wall of the frame rod is provided with spiral reinforcing ribs, the rib material is glass fiber reinforced PP.

[0010] In the above-mentioned agricultural management house based on cement blanket and steel pipe mesh structure, the hot-dip galvanized pipe uses hot-dip galvanized steel pipe as the inner base material and an outer composite layer of flame-retardant FRP with a thickness of 2-5mm. In addition, 15-20wt% of rice husk powder modified filler is added to the FRP layer to achieve a synergistic improvement in lightweight and corrosion resistance.

[0011] In the above-mentioned agricultural management house based on cement blanket and steel pipe grid structure, the door frame is made of PVC resin, fir powder and maleic anhydride grafted PP compatibilizer. The surface of the door frame is sprayed with a transparent water-based nano SiO2 wear-resistant coating with a coating thickness of 8-12μm.

[0012] In the above-mentioned agricultural management house based on cement blanket and steel pipe mesh structure, the gasket is made of nitrile rubber matrix and graphene nanosheet composite vulcanization, the gasket thickness is 1.5-2.5mm, and the inner ring of the gasket is provided with an annular raised sealing structure to improve the waterproofness of the bolt connection.

[0013] In the above-mentioned agricultural management house based on cement blanket and steel pipe grid structure, the plaster contains nano TiO2, with a nano TiO2 content of 2-3wt%, and 5-8wt% of light calcium carbonate filler is added, which has both photocatalytic self-cleaning and thermal insulation properties.

[0014] In the above-mentioned agricultural management house based on cement blanket and steel pipe grid structure, the connection between the hot-dip galvanized pipe and the frame rod adopts a nested connection method. The end of the hot-dip galvanized pipe is provided with a concave interface, and the end of the frame rod is provided with a matching boss. After the boss is inserted into the interface, it is locked by 2-3 circumferentially evenly distributed bolts.

[0015] A rapid assembly and disassembly process for an agricultural management house based on a cement blanket and steel pipe grid structure, using the aforementioned agricultural management house based on a cement blanket and steel pipe grid structure, further includes the following steps: S1: Connect the hot-dip galvanized pipe and the frame rod through the boss and concave interface, add the gasket and lock it with stainless steel bolts. Pass the bolt through the two frame rods in turn, put the gasket on the outside of the bolt, and finally install the screw thread to assemble the main body of the steel pipe frame. S2: Both the door frame and the window frame are fixed to the preset position of the main body of the steel pipe frame with bolts, and the gap between the door frame, window frame 13 and the frame rod is filled with water-based polyurethane sealant. S3: Cover the main body of the steel pipe grid with cement blanket, insert fixing pins through the cement blanket, and then install fixing caps on one end of the fixing pins to fix the position of the cement blanket; S4: Spray water onto the cement blanket using a water gun, controlling the total amount of water sprayed to be 1.2-1.5 times the dry weight of the cement blanket, and let it stand for 24-48 hours to allow the cement blanket to harden completely. S5: After the cement blanket has hardened, apply plaster to its outer surface. The thickness of the plaster should be controlled at 0.8-1.2mm. Allow it to dry naturally for 12-24 hours. S6: During disassembly, first peel off the plaster, then remove the fixing caps, cement blankets and screws in sequence, sort and recycle the parts of each material, and complete the disassembly.

[0016] Compared with existing technologies, the advantages of this invention are as follows: the structure adopts composite materials and a nested sealing design, which is wind-resistant, corrosion-resistant, and waterproof, and can resist outdoor moisture and pesticide and fertilizer erosion, resulting in a long service life; modular assembly eliminates the need for complicated construction, and 2-3 people can complete the assembly in a short time; the components can be reused after disassembly, which greatly reduces construction and transportation costs; the plaster has both self-cleaning and heat preservation functions, reduces dust and pesticide residues, stabilizes indoor temperature, and is suitable for diverse scenarios such as storage, pump rooms, and temporary rest areas, flexibly meeting the diverse needs of agricultural production. Attached Figure Description

[0017] Figure 1 This is a structural diagram of an agricultural management house based on a cement blanket and steel pipe grid structure proposed in this invention; Figure 2 This is a structural diagram of the fixing pin and fixing cap; Figure 3 Diagram showing how water is sprayed to harden the cement blanket; Figure 4 This is a diagram showing surface smoothing or coating treatment.

[0018] In the picture: 1. Door frame; 2. Water gun; 3. Frame rod; 4. Hot-dip galvanized pipe; 5. Nut; 6. Screw; 7. Bolt; 8. Fixing pin; 9. Fixing cap; 10. Washer; 11. Cement blanket; 12. Plaster; 13. Window frame. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Technical solution

[0020] This invention provides an agricultural building structure based on a cement blanket and steel pipe grid structure. Its core lies in achieving rapid construction and reusability of the building through the combination of standardized components and innovative materials. The specific structure is as follows: Steel Pipe Space Frame: A side-ground wire space frame structure is adopted, using standard-sized steel pipes as the basic tubing. Based on architectural design requirements, the lengths of the steel pipes at each location are precisely calculated, and holes are punched at the corresponding positions. The punched steel pipes are connected together using bolts, screws, and washers to assemble a space frame with stable support. During the design phase, computer-aided design software such as CAD can be used to perform 3D modeling and mechanical analysis of the space frame structure, ensuring its structural strength and stability. Furthermore, standardized connectors and a unified punching design facilitate the disassembly and assembly of the space frame structure.

[0021] Cement Blanket Covering Layer: A new type of cement blanket material is used to cover the surface of the steel pipe grid framework. The cement blanket is a flexible material containing geotextile fibers and has the property of hardening upon contact with water. During installation, the cement blanket is laid flat on the grid surface, and each joint is securely connected using specialized connectors or stitching to ensure the integrity of the covering layer. Subsequently, water spraying or sprinkling promotes the hydration reaction of the cement inside the blanket. After approximately 7 days of hardening, a shell with strength approaching that of a reinforced concrete cast-in-place structure is formed. Due to the presence of geotextile fibers, the hardened cement blanket exhibits excellent crack resistance, effectively improving the building's durability.

[0022] Overall working principle During construction, the steel pipe space frame is first assembled according to the design plan to provide the basic support structure for the building. Then, a cement blanket is laid to ensure it adheres tightly to the space frame. Water is sprayed to induce a hardening reaction in the cement blanket, bonding the space frame and the cement blanket into a unified whole, forming a load-bearing building structure. After the building's lifespan, the bolts and other connectors can be removed, separating the steel pipe space frame from the cement blanket, allowing for material reuse.

[0023] Reference Figures 1-4An agricultural management house based on a cement blanket and steel pipe grid structure is disclosed. The structure includes a main body of steel pipe grid composed of hot-dip galvanized pipes 4 and frame rods 3. The main body of the steel pipe grid adopts a side-ground wire grid structure, using standard-specification steel pipes as the basic tubing. According to the architectural design requirements, the length of the steel pipes in each part is accurately calculated, and perforations are made at the corresponding locations.

[0024] The main body of the steel pipe grid is covered with a cement blanket 11. The roof grid has a pre-set drainage slope of 3-5°. The cement blanket 11 is laid along the slope to prevent rainwater accumulation and structural corrosion. The cement blanket 11 is a flexible material containing geotextile fibers and has the property of hardening upon contact with water. During the laying process, the cement blanket 11 is laid flat on the surface of the grid to ensure the integrity of the covering layer. The edges of the cement blanket 11 are designed with a 5-8cm overlap and sealed with sealant to prevent rainwater penetration. The outer surface of the cement blanket 11 is coated with a composite plaster slurry 12 containing 2-3wt% nano-TiO2 and 5-8wt% light calcium carbonate. This slurry has photocatalytic self-cleaning, heat insulation, and resistance to agricultural microbial erosion functions, which can reduce pesticide residues and dust adhesion, while reducing the indoor-outdoor temperature difference by 8-10℃. The nano-TiO2 in the plaster slurry 12 can photocatalytically degrade pesticide residues and organic pollutants in the air, and also has a self-cleaning function, reducing the frequency of cleaning and water consumption.

[0025] The main body of the steel pipe grid structure is detachably connected by bolts 7, nuts 5, screws 6 and washers 10. Bolts 7 and screws 6 are connected by threads. Nuts 5 are fitted onto one end of bolts 7. Door frames 1 and window frames 13 are installed on the main body of the steel pipe grid structure. A fixing pin 8 is fixedly installed on one end of bolts 7. Cement blanket 11 is fixed to the main body of the steel pipe grid structure through fixing pin 8.

[0026] The fixing pin 8 passes through the frame rod 3 and the cement blanket 11 in sequence. The fixing pin 8 is fitted with a fixing cap 9 at its end. The fixing pin 8 and the fixing cap 9 are connected by threads or snaps. The door frame 1 is fixedly connected to the frame rod 3 by bolts 7. The gap between the door frame 1 and the frame rod 3 is filled with water-based polyurethane sealant. There is a sealing gap between the door frame 1 and the cement blanket 11. The frame rod 3 is made of bamboo fiber and PP resin composite extrusion molding. The inner wall of the frame rod 3 is provided with spiral reinforcing ribs. The rib material is glass fiber reinforced PP. The hot-dip galvanized pipe 4 uses hot-dip galvanized steel pipe as the inner base material and a flame-retardant FRP layer with a thickness of 2-5mm on the outer layer. 15-20wt% of rice husk powder modified filler is added to the FRP layer to achieve a synergistic improvement in lightweight and corrosion resistance.

[0027] The door frame 1 is made of PVC resin, fir wood powder and maleic anhydride grafted PP compatibilizer. The surface of the door frame 1 is sprayed with a transparent water-based nano-SiO2 wear-resistant coating with a thickness of 8-12μm. The gasket 10 is made of nitrile rubber matrix and graphene nanosheet composite vulcanized. The gasket 10 has a thickness of 1.5-2.5mm, and the inner ring of the gasket 10 has an annular raised sealing structure to improve the waterproofness of the bolt 7 connection. The connection between the hot-dip galvanized pipe 4 and the frame rod 3 adopts a nested connection method. The end of the hot-dip galvanized pipe 4 has a concave interface, and the end of the frame rod 3 has a matching boss. After the boss is inserted into the interface, it is locked by 2-3 circumferentially evenly distributed bolts 7.

[0028] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0029] The specific operation steps of this invention are as follows: S1: Connect the hot-dip galvanized pipe 4 and the frame rod 3 through the boss and concave interface, add the gasket 10 and lock it with the stainless steel bolt 7. Pass the bolt 7 through the two frame rods 3 in turn, then put the gasket 10 on the outside of the bolt 7, and finally install the screw 6 by thread to assemble the main body of the steel pipe frame. S2: Both the door frame 1 and the window frame 13 are fixed to the preset position of the main body of the steel pipe frame by bolts 7, and the gap between the door frame 1, the window frame 13 and the frame rod 3 is filled with water-based polyurethane sealant. S3: Cover the main body of the steel pipe frame with cement blanket 11, insert fixing pin 8 through cement blanket 11, and then install fixing cap 9 on one end of fixing pin 8 to fix the position of cement blanket 11. S4: Spray water onto cement blanket 11 using water gun 2, controlling the total amount of water sprayed to be 1.2-1.5 times the dry weight of cement blanket 11, and let it stand for 24-48 hours to allow cement blanket 11 to harden completely. S5: After the cement blanket 11 has hardened, apply plaster slurry 12 to its outer surface. The thickness of the plaster slurry should be controlled to be 0.8-1.2 mm. Allow it to dry naturally for 12-24 hours. S6: During disassembly, first peel off the plaster 12, then remove the fixing cap 9, cement blanket 11 and screw 6 in sequence, sort and recycle the parts of each material, and complete the disassembly.

[0030] One implementation plan is to construct a circular temporary agricultural management building with a diameter of 8 meters and a height of 5 meters.

[0031] Design phase: Use CAD software to create 3D models, design the side ground line triangular space frame structure, accurately calculate the length of each steel pipe, the punching position and the specifications of the connectors, and determine the reserved positions and dimensions of doors and windows.

[0032] Material preparation: According to the design plan, purchase steel pipes, screws, bolts, washers and sufficient cement blankets of the corresponding specifications; cut and punch the steel pipes.

[0033] Space frame assembly: On the construction site, according to the design drawings, the processed steel pipes are connected in sequence with bolts, screws and washers to assemble the side ground line triangular space frame skeleton, ensuring that the connection of each node is firm and the overall structure is stable.

[0034] Cement blanket laying: Starting from the top of the grid, lay the cement blanket 11 flat on the surface of the grid from top to bottom, and use special connectors to fix the seams to ensure tight coverage and no wrinkles; make precise cuts at the reserved door and window positions.

[0035] Water spraying hardening: Use a water spraying device to spray water evenly on the laid cement blanket 11, and carry out appropriate watering and curing every day for about 7 days until the cement blanket is completely hardened.

[0036] Door and window installation: Install doors and windows in the reserved locations to improve the building's functionality.

[0037] Reuse: After the management room is used up, remove the screws and other connecting parts, separate the steel pipe frame from the cement blanket, clean and maintain it, and then use it for the construction of the next building.

[0038] advantage: Fast and efficient: Abandoning the complex construction process of traditional buildings, the construction cycle is greatly shortened by using prefabricated steel pipe components and instant-hardening cement blankets. From construction to use, it can be controlled within about a week, which can quickly respond to the temporary building needs in agricultural production.

[0039] Energy-saving and environmentally friendly: Both the steel pipe grid and the cement blanket can be repeatedly disassembled and reused, reducing the waste of building materials and the amount of construction waste generated; at the same time, the cement blanket does not require high-energy-consuming processes such as high-temperature firing during the hardening process, which is in line with the concept of green building.

[0040] Low cost: The reusability of materials significantly reduces construction costs, and the construction process is simple, requiring no professional construction team or large machinery, further saving on labor and equipment rental costs.

[0041] Flexible design: The side ground wire grid structure is highly malleable. Combined with the flexible covering characteristics of cement blanket, it can realize diverse architectural shapes such as domes, arches, and bread shapes to meet the spatial form requirements of different functions in agricultural production. At the same time, door and window positions can be reserved in the grid design stage to facilitate later installation.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An agricultural management structure based on a cement blanket and steel pipe grid frame, characterized in that, The main body of the steel pipe grid structure consists of hot-dip galvanized pipes (4) and frame rods (3). The outer side of the main body of the steel pipe grid structure is covered with cement blanket (11). The main body of the steel pipe grid structure is detachably connected by bolts (7), nuts (5), screws (6) and washers (10). The bolts (7) and screws (6) are connected by threads. The nuts (5) are fitted onto one end of the bolts (7). Door frames (1) and window frames (13) are installed on the main body of the steel pipe grid structure. The cement blanket (11) is coated with plaster (12). After the cement blanket (11) is sprayed with water and hardened, it forms an integral structure with the grid structure.

2. The agricultural management house based on a cement blanket and steel pipe grid structure according to claim 1, characterized in that, The cement blanket contains geotextile fibers and has a strength similar to that of a reinforced concrete cast-in-place structure after hardening. The steel pipe grid and the cement blanket covering layer can be separated by removing the screws, allowing for material reuse.

3. An agricultural management house based on a cement blanket and steel pipe grid structure according to claim 2, characterized in that, One end of the bolt (7) is fixedly installed with a fixing pin (8), and the cement blanket (11) is fixed to the main body of the steel pipe frame through the fixing pin (8); the fixing pin (8) passes through the frame rod (3) and the cement blanket (11) in sequence, and the end of the fixing pin (8) is fitted with a fixing cap (9), and the fixing pin (8) and the fixing cap (9) are connected by threads or by snap fasteners.

4. An agricultural management house based on a cement blanket and steel pipe grid structure according to claim 3, characterized in that, The door frame (1) is fixedly connected to the frame rod (3) by bolts (7). The gap between the door frame (1) and the frame rod (3) is filled with water-based polyurethane sealant. A sealing gap is provided between the door frame (1) and the cement blanket (11). The frame rod (3) is made of bamboo fiber and PP resin composite extrusion molding, and the inner wall of the frame rod (3) is provided with spiral reinforcing ribs. The rib material is glass fiber reinforced PP.

5. An agricultural management house based on a cement blanket and steel pipe grid structure according to claim 4, characterized in that, The hot-dip galvanized pipe (4) uses hot-dip galvanized steel pipe as the inner base material and an outer composite layer of flame-retardant FRP with a thickness of 2-5mm. 15-20wt% of rice husk powder is added to the FRP layer to achieve a synergistic improvement in lightweighting and corrosion resistance.

6. An agricultural management house based on a cement blanket and steel pipe grid structure according to claim 5, characterized in that, The door frame (1) is made of PVC resin, fir powder and maleic anhydride grafted PP compatibilizer. The surface of the door frame (1) is sprayed with a transparent water-based nano-SiO2 wear-resistant coating with a coating thickness of 8-12μm.

7. An agricultural management house based on a cement blanket and steel pipe grid structure according to claim 6, characterized in that, The gasket (10) is made of nitrile rubber matrix and graphene nanosheets through composite vulcanization. The thickness of the gasket (10) is 1.5-2.5mm, and the inner ring of the gasket (10) is provided with an annular raised sealing structure to improve the waterproofness of the bolt (7) connection.

8. An agricultural management house based on a cement blanket and steel pipe grid structure according to claim 7, characterized in that, The plaster (12) contains nano TiO2, with a nano TiO2 content of 2-3wt%, and 5-8wt% of light calcium carbonate filler is added, which has both photocatalytic self-cleaning and thermal insulation properties.

9. An agricultural management house based on a cement blanket and steel pipe grid structure according to claim 8, characterized in that, The connection between the hot-dip galvanized pipe (4) and the frame rod (3) is a nested connection. The end of the hot-dip galvanized pipe (4) is provided with a concave interface, and the end of the frame rod (3) is provided with a matching boss. After the boss is inserted into the interface, it is locked by 2-3 circumferentially evenly distributed bolts (7).

10. A rapid assembly and disassembly process for an agricultural management house based on a cement blanket and steel pipe frame structure, using the agricultural management house based on a cement blanket and steel pipe frame structure as described in claim 9, characterized in that... It also includes the following steps: S1: Connect the hot-dip galvanized pipe (4) and the frame rod (3) through the boss and concave interface, add the gasket (10) and lock it with stainless steel bolt (7), pass the bolt (7) through the two frame rods (3) in turn, put the gasket (10) on the outside of the bolt (7), and finally install the screw (6) to assemble the main body of the steel pipe frame. S2: The door frame (1) and window frame (13) are both fixed to the main body of the steel pipe frame by bolts (7), and the gap between the door frame (1), window frame (13) and frame rod (3) is filled with water-based polyurethane sealant. S3: Cover the main body of the steel pipe frame with cement blanket (11), use fixing pin (8) to penetrate cement blanket (11), and then install fixing cap (9) on one end of fixing pin (8) to fix the position of cement blanket (11); S4: Spray water onto the cement blanket (11) using a water gun (2), controlling the total amount of water sprayed to be 1.2-1.5 times the dry weight of the cement blanket (11), and let it stand for 24-48 hours to allow the cement blanket (11) to harden completely; S5: After the cement blanket (11) has hardened, apply plaster (12) to its outer surface. The thickness of the plaster is controlled to be 0.8-1.2 mm. Allow it to dry naturally for 12-24 hours. S6: When disassembling, first peel off the plaster (12), then remove the fixing cap (9), cement blanket (11) and screws (6) in sequence, sort and recycle the parts of each material, and complete the disassembly.

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