An assembled sand prevention grid

Abstract

The utility model discloses an assembled sand prevention grating, including a plurality of first and last end spigot and joint's grating unit, and each grating unit includes the movable connection's vertical column and horizontal grating, and the vertical column upper and lower end is provided with the mortise and tenon structure that can be connected, and the horizontal grating is inserted and connected with the recessed hole of mortise and tenon structure on the vertical column, and the utility model passes through the modularization design and standardization mortise and tenon connecting structure, has realized quick installation and height adjustable, has solved the problem that traditional sand prevention grating construction efficiency is low, and the connection is not firm, has the advantage that is convenient for quick installation, stable structure, good durability and can be repeatedly used.

Description

Technical Field

[0001] This utility model relates to the field of sand-proof grids, specifically to an assembled sand-proof grid. Background Technology

[0002] When highways pass through desert areas, desertification control and ecological restoration projects are necessary to prevent sand accumulation on the road. Installing sand-proof grids is a common and effective measure. Traditional sand-proof grids are mostly made by on-site weaving or fixing, such as straw grids, reed grids, shrub grids, and sandbags. These methods have problems such as low construction efficiency, easy material decay, insufficient overall strength, significant environmental impact, and difficulty in standardized production and transportation.

[0003] Organic materials such as wheat straw are prone to rotting in harsh environments, leading to a rapid decline in their sand-control effectiveness. On-site weaving methods have long construction cycles, making them unsuitable for large-scale projects. Fixed structures cannot be adjusted in height and layout according to actual needs, resulting in poor adaptability. Furthermore, traditional bar screens are easily damaged by long-term wind and sand erosion, leading to high maintenance costs and difficulty in repairing or replacing damaged screens. More importantly, existing sand-control bar screens lack standardized connection structures, resulting in low installation efficiency, weak connections between components, and susceptibility to displacement or disintegration under strong winds. Therefore, there is a need to research a prefabricated sand-control bar screen that is easy to install quickly, structurally stable, durable, and reusable. In particular, there is a need to develop a modular sand-control system with standardized connection interfaces, flexible height adjustment, and ease of transportation and on-site assembly. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides an assembled sand-proof grid.

[0005] This utility model is achieved through the following technical solution:

[0006] This application provides a prefabricated sand-proof grid, including multiple grid units that are connected end to end. Each grid unit includes a longitudinal column and a transverse grid that are movably connected. The upper and lower ends of the longitudinal column are provided with mortise and tenon structures that can be connected. The transverse grid is connected to the recessed holes with mortise and tenon structures on the longitudinal column.

[0007] Furthermore, this application also proposes that the mortise and tenon structure of the longitudinal column includes a column protrusion at the bottom and an insertion hole at the top.

[0008] Furthermore, this application also proposes that a plurality of side-opening insertion holes are evenly provided on the inner side of the column protrusion, and a plurality of circular cylinders matching the insertion holes are provided in the insertion holes of the longitudinal column.

[0009] Furthermore, this application also proposes that the transverse grid includes grid posts on both sides, with a grid mesh connecting the two grid posts.

[0010] Furthermore, this application also proposes that the circular column is provided with an insertion hole with a side opening, and the grid column of the horizontal grid is inserted into the insertion hole to connect with the vertical column.

[0011] Furthermore, this application also proposes that the circular cylinder and the insertion hole extend downward to the column protrusion.

[0012] Furthermore, this application also proposes that the grid units can be combined vertically using a mortise and tenon structure to increase their sand-proof height.

[0013] Compared with existing technologies, the advantages of this utility model are: through modular design and standardized mortise and tenon connection structure, this utility model achieves rapid installation and height adjustment, solves the problems of low construction efficiency and weak connection of traditional sand-proof grids, and has the advantages of easy and rapid installation, stable structure, good durability and reusability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the practical longitudinal column;

[0016] Figure 3 yes Figure 2 Another state diagram;

[0017] Figure 4 This is a schematic diagram of the structure of this practical grille unit;

[0018] Figure 5 This is a schematic diagram of the upper and lower combination connection in this practical application;

[0019] Figure 6 This is a top-down view for practical use in desert areas;

[0020] In the diagram: 1. Vertical column; 2. Column protrusion; 3. Circular column; 4. Insertion hole; 5. Grid column; 6. Grid mesh. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0022] like Figure 1As shown, this application proposes an assembled sand-proof grid, which includes multiple grid units that are connected at both ends. Each grid unit includes a longitudinal column and a transverse grid that are movably connected. The upper and lower ends of the longitudinal column are provided with mortise and tenon structures that can be connected. The transverse grid is connected to the recessed holes with mortise and tenon structures on the longitudinal column.

[0023] The mortise and tenon structure at the upper and lower ends of the longitudinal columns can take various forms, such as a protruding part at the bottom and a recessed part at the top. The connection between the transverse grilles and the longitudinal columns can be achieved through interlocking snap-fit ​​connections, with interlocking being the preferred embodiment. The recessed holes in the longitudinal columns can be designed as circular, square, or other polygonal shapes, with circular holes facilitating processing and assembly. The transverse grilles can be made of rigid or flexible materials, such as metal, plastic, or composite materials.

[0024] This technical solution achieves rapid assembly and disassembly of sand-control grids through a modular grid unit design. The mortise and tenon joint structure enhances the overall stability of the grids while facilitating transportation and storage. Compared to traditional on-site woven grids, this solution addresses the issues of low construction efficiency and material susceptibility to decay, and can adapt to various terrain conditions. The movable connection design between the longitudinal columns and transverse grids allows the grid height to be adjusted according to actual needs, thus better meeting the requirements of sand control projects.

[0025] Furthermore, such as Figure 2 , 3 As shown, this application also proposes that the mortise and tenon structure of the longitudinal column includes a column protrusion at the bottom and an insertion hole at the top. The longitudinal column height is 0.3-1 meter (which can be set according to the desert site), and the column protrusion is 1 / 3 of the total longitudinal column height. The column protrusion is used to connect with the insertion hole of the lower grid unit, or it can be directly inserted into the ground surface for fixing. The upper insertion hole is used to connect with the column protrusion of the upper grid unit. Specifically, the column protrusion can be cylindrical, and its size matches the insertion hole to ensure the stability of the connection.

[0026] Therefore, this technical solution achieves a rapid and stable connection between grid units through a combination of column protrusions and insertion holes. The matching design of the column protrusions and insertion holes eliminates the need for additional tools during the connection process, simplifying on-site installation. Furthermore, this connection method effectively transfers wind and sand loads, preventing loosening of the connection points due to long-term stress. Compared to traditional on-site weaving or fixing methods, this solution significantly improves construction efficiency while ensuring the integrity and stability of the structure. Specifically, when wind and sand act on the grid, the load is evenly transferred through the contact surface between the column protrusions and the insertion holes, avoiding localized damage caused by stress concentration.

[0027] Furthermore, such as Figure 2 , 3 As shown, this application also proposes that a plurality of side-opening insertion holes are evenly arranged on the inner side of the column protrusion, and a plurality of circular cylinders matching the insertion holes are arranged in the insertion holes of the longitudinal column.

[0028] Specifically, four evenly distributed insertion holes are located inside the protruding part of the column, with their openings facing sideways to facilitate the insertion of the circular column connecting section. The diameter of the circular column matches the inner diameter of the insertion holes and can be made of metal or engineering plastic. As a preferred embodiment, the insertion holes can be designed as circular openings. Furthermore, the circular column can be designed as a hollow structure to reduce overall weight while maintaining sufficient structural strength.

[0029] Therefore, this technical solution achieves rapid positioning and reliable connection between the longitudinal columns and the transverse grid through the interlocking hole design and the circular column. The multiple sets of interlocking holes significantly increase the distribution density of connection points, giving the grid unit better overall stability under wind and sand loads. Compared with existing technologies, this structure avoids the construction complexity caused by welding or bolting connections, and the standardized interface design makes disassembly and maintenance more convenient. Specifically, when the transverse grid column is inserted into the circular column, multiple contact surfaces share the load, effectively preventing connection failure caused by localized stress concentration.

[0030] Furthermore, such as Figure 4 As shown, this application also proposes that the transverse grid includes grid posts on both sides, with a grid mesh connecting the two grid posts.

[0031] The grid posts can be made of metal tubing, engineering plastics, or composite materials, with a circular cross-section. The grid mesh can be made from molded synthetic materials or perforated metal sheets, with mesh sizes ranging from 1.2m x 2m to 1.5m x 2.5m. The connection between the grid posts and the grid mesh can be welding or integrally formed.

[0032] Therefore, this technical solution achieves a modular design for the horizontal grid by setting up grid columns on both sides and a grid mesh in the middle. Specifically, the grid columns provide the main support, while the grid mesh forms the blocking surface; the two work together to effectively intercept wind and sand. Compared with traditional integral grids, this structure is easier to disassemble and transport, and in case of partial damage, the grid columns or grid mesh can be replaced individually, reducing maintenance costs. In addition, the grid mesh can be made of different materials and have different mesh sizes to meet different windbreak and sand-fixing requirements.

[0033] Furthermore, such as Figure 2 , 3As shown, this application also proposes that the circular column is provided with an insertion hole with a side opening, and the grid column of the horizontal grid is inserted into the insertion hole to connect with the vertical column.

[0034] Specifically, there are four circular cylinders and four insertion holes. The insertion holes with openings on the sides of the circular cylinders can be implemented as follows: the insertion holes are through-hole structures that penetrate the entire circular cylinder from top to bottom, and their diameter is slightly larger than the diameter of the grid column to allow the rods to be inserted smoothly. Furthermore, the circular cylinders are injection molded from high-density polyethylene material, and their sidewall thickness is 3-5mm to ensure structural strength.

[0035] Therefore, this technical solution achieves rapid connection between the transverse grid and the longitudinal column by directly inserting the grid column into the lateral opening of the circular column. During operation, after the grid column is inserted laterally into the circular column, its end forms surface contact with the inner wall of the column, maintaining connection stability through friction and structural restraint. Compared to traditional connection methods that require specialized tools, this structure significantly simplifies on-site assembly and avoids the problem of loose bolt connections. Furthermore, the lateral insertion design allows for modular assembly and disassembly of the grid unit, facilitating transportation and partial replacement and maintenance.

[0036] Furthermore, such as Figure 2 , 3 As shown, this application also proposes that the circular cylinder and the insertion hole extend downward to the column protrusion.

[0037] Specifically, the circular cylinder, as a key connecting component within the vertical columns, features an insertion hole design on its side opening that allows the grid columns of the horizontal grid to be directly inserted. By extending the circular cylinder and insertion hole downwards to the column protrusion, a continuous and interconnected connecting channel is formed between the column protrusion and the circular cylinder. For example, a one-piece molding process can be used to integrate the circular cylinder and the column protrusion into a single structure. As a preferred embodiment, the circular cylinder extends 1-2 cm above the column protrusion to ensure connection strength and stability.

[0038] Therefore, this technical solution achieves multi-point coordinated force distribution between the longitudinal columns and the transverse grid by extending the structure. Specifically: First, the circular column extending to the protruding part of the column increases the contact area with the transverse grid, allowing wind and sand loads to be more evenly distributed to the longitudinal columns; second, the continuous channel avoids the stress concentration problem of traditional segmented connections, significantly improving the bending stiffness of the nodes; finally, while ensuring rapid plug-in assembly, the structure effectively prevents the grid columns from loosening under wind vibration through mechanical interlocking. Compared with the independent mortise and tenon connection method in the prior art, this solution significantly improves the overall structural stability and durability of the grid unit while maintaining ease of assembly.

[0039] Furthermore, such as Figure 5 As shown, this application also proposes that the grid units can be combined vertically using a mortise and tenon structure to increase their sand-proof height.

[0040] Specifically, the mortise and tenon structure at the upper and lower ends of the longitudinal column includes a lower column protrusion and an upper insertion hole. Multiple side-opening insertion holes are evenly distributed on the inner side of the column protrusion, and multiple circular cylinders matching these insertion holes are placed within these holes. Each circular cylinder has a side-opening insertion hole into which the grid columns of the horizontal grille can be inserted. Thus, the upper and lower grid units can be vertically stacked and combined through the insertion of the column protrusions into the insertion holes.

[0041] This technical solution achieves flexible adjustment of the sand-control grating height through modular design. When the sand-control height needs to be increased, new grating units are simply superimposed on top of the existing grating using a mortise and tenon structure. The matching design of the circular cylinder and the insertion hole ensures connection stability, while the continuous connection channel improves the overall strength of the assembled structure. Compared with existing technologies, this solution solves the problem of traditional sand-control gratings having a fixed height and being unable to be adjusted according to actual needs, while maintaining structural stability and durability.

[0042] The implementation principle of a prefabricated sand-proof grid according to an embodiment of this application is as follows:

[0043] In the desert areas along both sides of the road, sand-proof grids are installed. During installation, the protruding parts 2 at the bottom of the longitudinal columns 1 of multiple grid units are first inserted into the sand surface for fixation. Then, the transverse grids are installed and fixed in the insertion holes 4 of two adjacent longitudinal columns 1. The insertion holes 4 in the four directions of the longitudinal columns 1 are then connected to form a mesh-like sand-proof grid (e.g., Figure 6 As shown), the height of the longitudinal columns 1 can be adjusted according to the site conditions to achieve adjustment of the overall height of the sand-proof grid (e.g., Figure 5 As shown in the figure, multiple rows of sand-proof grids can also be combined and installed according to the site conditions to achieve the sand-proof function.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A prefabricated sand-proof grating, characterized in that: It includes multiple grid units that are connected at both ends. Each grid unit includes a longitudinal column and a transverse grid that are movably connected. The upper and lower ends of the longitudinal column are provided with mortise and tenon structures that can be connected. The transverse grid is connected to the recessed holes with mortise and tenon structures on the longitudinal column (1).

2. The prefabricated sand-proof grating according to claim 1, characterized in that: The mortise and tenon structure of the longitudinal column (1) includes a column protrusion (2) at the bottom and an insertion hole at the top.

3. The assembled sand-proof grating according to claim 2, characterized in that: The inner side of the column protrusion (2) is uniformly provided with a plurality of side-opening insertion holes (5), and the insertion hole of the longitudinal column (1) is provided with a plurality of circular cylinders (3) that match the insertion holes (5).

4. The prefabricated sand-proof grating according to claim 1, characterized in that: The transverse grid includes grid posts (6) on both sides, and a grid mesh (7) is connected between the two grid posts (6).

5. A prefabricated sand-proof grating according to claim 3, characterized in that: The circular column (3) is provided with an insertion hole (4) with a side opening. The grid column (6) of the horizontal grid is inserted into the insertion hole (4) and connected to the vertical column (1).

6. A prefabricated sand-proof grating according to claim 5, characterized in that: The circular cylinder (3) and the insertion hole (4) extend downward to the column protrusion (2).

7. A prefabricated sand-proof grating according to claim 1, characterized in that: The grid unit can be assembled vertically using a mortise and tenon structure to increase its sand-proof height.

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