Steel-plastic composite geogrid connecting structure

Abstract

A kind of steel plastic composite geogrid connecting structure connects two partially overlapped geogrids, the overlapping position of two geogrids is provided with corresponding installation hole, and the inner wall of installation hole is provided with a plurality of plastic material clamping teeth along vertical direction on one side;Connecting structure includes plastic material rack, rack is matched with clamping teeth, and the lower part of rack is detachably connected with baffle, one side of baffle is connected with fastening plate integrally formed with it, and anchor is arranged on the side of fastening plate that leaks out geogrid aperture.This utility model realizes the quick and reliable connection between two overlapped geogrids by the meshing effect of plastic clamping teeth arranged in geogrid installation hole and rack matched with it, and mechanical meshing connection replaces complicated manual binding, and operator can complete insertion from one side without repeatedly lifting geogrid, which greatly simplifies operation process, reduces labor intensity, improves splicing efficiency, and ensures the consistency and reliability of connection strength.

Description

Technical Field

[0001] This utility model relates to the field of composite geogrid technology, specifically a steel-plastic composite geogrid connection structure. Background Technology

[0002] Steel-plastic composite geogrids, as an important geosynthetic material, are widely used in reinforced structures in civil engineering fields such as highways, railways, dams, and slopes. In actual construction, due to limitations in production specifications and on-site laying width requirements, the laying width of a single geogrid is often insufficient. Therefore, two or more geogrids must be spliced ​​on-site to form a continuous and complete reinforcement layer.

[0003] Currently, the common practice in this field for splicing such steel-plastic composite geogrids is to partially overlap the ends of the two geogrids and then manually tie and fix them using wire, special plastic cable ties, and other connectors.

[0004] However, with traditional binding connection methods, construction workers need to frequently bend over or squat down to bind multiple nodes in the overlapping area one by one. This is labor-intensive and slow. Especially when connecting joints in the middle area of ​​the paved surface, operators often need to repeatedly lift the overlapping part of the laid grid and wrap the wire or cable tie around it to complete the binding operation. This process is not only time-consuming and laborious, but also prone to weak connections due to limited operating space, making it difficult to ensure the consistency of connection points and construction quality. Utility Model Content

[0005] To address the technical problems existing in the background art, this utility model provides a steel-plastic composite geogrid connection structure.

[0006] The technical solution of this utility model is as follows: A steel-plastic composite geogrid connection structure connects two partially overlapping geogrids. The overlapping positions of the two geogrids are provided with corresponding installation holes, and one side of the inner wall of the installation hole is provided with multiple plastic snap teeth in the vertical direction. The connecting structure includes a plastic rack that is compatible with snap-fit ​​teeth. A baffle is detachably connected to the lower part of the rack. The length of the baffle is greater than the inner diameter of the mounting hole. A fastening plate integrally formed with the baffle is connected to one side of the baffle. An anchor is inserted through the side of the fastening plate that protrudes from the grid hole of the geogrid.

[0007] To limit the engagement of the rack with the teeth in the overlapping mounting holes, a through hole adapted to the baffle is provided at the bottom of the rack. The baffle is connected to the rack by a fastener that passes through the rack to the through hole.

[0008] To facilitate the embedding of anchors into the ground, a heightening plate is provided on one side of the upper end face of the fastening plate, located inside the grid hole. The height of the heightening plate is consistent with the overlap height of the two geogrids, so that after the rack passes through the installation holes of the upper and lower overlapping geogrids in sequence, the baffle is in contact with the lower end face of the lower geogrid, and the upper end face of the heightening plate can be flush with the upper end face of the upper geogrid, making it easy to expose the anchors on it and to apply force to the anchors.

[0009] Furthermore, the heightening plate and the fastening plate have corresponding elongated holes in the vertical direction, and the anchors are inserted into the elongated holes, with an anchor cap at the upper end of the anchors.

[0010] To facilitate quick and smooth installation of the baffle, fastening plate and anchor, the rack is inserted from bottom to top.

[0011] Furthermore, the upper ends of the rack are chamfered on both sides to facilitate quick insertion of the rack into the corresponding mounting holes from the geogrid below.

[0012] Preferably, the length of the rack is not less than twice the height of the mounting hole.

[0013] Preferably, the lower end of the rack has a countersunk threaded hole that communicates with the through hole, and the fastener is threadedly connected to the countersunk threaded hole, with the length of the fastener being greater than the length of the countersunk threaded hole.

[0014] The beneficial effects of this utility model are as follows: By using the interlocking action of plastic snap teeth integrally set with the inner wall of the geogrid installation hole and the matching plastic toothed strip, a fast and reliable connection between two overlapping geogrids is achieved. The mechanical interlocking connection replaces the cumbersome manual binding. Operators can complete the insertion from one side without repeatedly lifting the geogrid, which greatly simplifies the operation process, reduces labor intensity, improves splicing efficiency, and ensures the consistency and reliability of the connection strength. Once the rack is inserted and engages with the locking teeth, its lower baffle, detachably connected to the lower end of the rack, provides axial restraint for the entire connection structure, preventing the rack from dislodging from the mounting hole and ensuring the stability of the connection. Simultaneously, the fastening plate, integrally formed with the baffle, extends naturally to the grid holes, providing a path for the anchors. This allows for a single anchoring action to simultaneously complete the interconnection between the grids and their anchoring to the foundation, eliminating the need for additional U-shaped nail installation. This significantly simplifies the construction process and reduces the amount of materials and procedures required. Attached Figure Description

[0015] In the attached diagram: Figure 1 This is a schematic diagram of the first structure; Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a schematic diagram of the second structure; Figure 4 for Figure 3 Enlarged structural diagram at point B; Figure 5 This is a top view; Figure 6 for Figure 5 A schematic diagram of the AA-direction cross-section structure; Figure 7 for Figure 6 Enlarged structural diagram at point C; Figure 8 A schematic diagram of the structure of the rack, baffle, fastening plate, heightening plate and anchor. The components represented by the various reference numerals in the diagram are: 1. Geogrid; 101. Upper geogrid; 102. Lower geogrid; 103. Mounting hole; 2. Snap-fit ​​tooth; 3. Toothed rack; 301. Through hole; 302. Countersunk threaded hole; 4. Baffle; 5. Fastener; 6. Fastening plate; 601. Long hole; 7. Anchor; 8. Heightening plate; 9. Anchor; 901. Anchor cap. Detailed Implementation

[0016] See Figure 1 , Figure 3 and Figure 5 As shown, a steel-plastic composite geogrid connection structure connects two partially overlapping geogrids 1. Each overlapping position of the two geogrids 1 has a corresponding mounting hole 103. One side of the inner wall of the mounting hole 103 has multiple plastic snap-fit ​​teeth 2 along the vertical direction. The two geogrids 1 are an upper geogrid 101 and a lower geogrid 102.

[0017] See Figure 2 , Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, the connection structure includes a plastic rack 3 with multiple teeth. The rack 3 is adapted to the snap-fit ​​teeth 2, and the length of the rack 3 is not less than twice the height of the mounting hole 103. The teeth on the rack 3 can undergo a certain elastic deformation under the pressure of the mounting hole 103 and the snap-fit ​​teeth 2, facilitating the rack 3 to pass through the mounting hole 103 and engage with the snap-fit ​​teeth 2. The snap-fit ​​teeth 2 have an upwardly inclined structure, and their engagement with the rack 3 resembles a cable tie, ensuring that the rack 3 can only move unidirectionally from bottom to top and cannot move downwards, thus providing reliable connection. A baffle 4 is detachably connected to the lower part of the rack 3. The length of the baffle 4 is greater than the inner diameter of the mounting hole 103. A fastening plate 6 integrally formed with the baffle 4 is connected to one side of the baffle 4. Anchors are inserted through the side of the fastening plate 6 that protrudes from the geogrid holes of the geogrid 1.

[0018] To limit the engagement of the rack 3 with the locking teeth 2 inside the mounting holes 103 that overlap, a through hole 301 adapted to the baffle 4 is provided at the lower part of the rack 3. The baffle 4 is connected to the rack 3 by a fastener 5 that passes through the rack 3 to the through hole 301.

[0019] In the above structure, when the rack 3 is inserted and engages with the locking teeth 2, the baffle 4 at its lower part provides axial restraint for the entire connection structure through a detachable connection with the lower end of the rack 3, preventing the rack 3 from coming out of the mounting hole 103 and ensuring the stability of the connection. At the same time, the fastening plate 6, which is integrally formed with the baffle 4, naturally extends to the grid hole, providing a path for the anchors to pass through. This allows for the simultaneous completion of the interconnection between the grids and their anchoring to the foundation with only one anchoring action, eliminating the need for additional U-shaped nail installation, greatly simplifying the construction process and reducing materials and procedures. To facilitate the quick and smooth installation of the baffle 4, fastening plate 6, and anchors, the rack 3 is inserted from bottom to top.

[0020] To facilitate the embedding of anchors into the ground, a heightening plate 8 is provided on one side of the upper end face of the fastening plate 6, located within the grid holes. The heightening plate 8 can be integrally formed with the fastening plate 6 for ease of manufacturing. The height of the heightening plate 8 is consistent with the overlap height of the two geogrids 1, so that after the rack 3 passes through the mounting holes 103 of the overlapping geogrids 1, the baffle 4 fits against the lower end face of the lower geogrid 1, and the upper end face of the heightening plate 8 can be flush with the upper end face of the upper geogrid 1, making it easy to expose the anchors and apply force to them. When the anchors are fixed in the ground, both the anchors and the heightening plate 8 can limit the position of the geogrids 1.

[0021] The riser plate 8 and the fastening plate 6 have corresponding elongated holes 601 along the vertical direction. The elongated holes 601 of the riser plate 8 and the fastening plate 6 overlap, allowing the anchor to pass through the two elongated holes 601. The upper end of the anchor is provided with an anchor cap 901. The anchor cap 901 can reliably protrude from the surface of the upper grid, providing a flat force-bearing surface for hammering or pressurization, ensuring that the anchor can be smoothly and vertically driven into the foundation, guaranteeing the final anchoring effect and construction quality.

[0022] The upper ends of the rack 3 are chamfered on both sides to facilitate the quick insertion of the rack 3 into the corresponding mounting holes 103 from the geogrid 1 below.

[0023] The lower end of the rack 3 has a countersunk threaded hole 302 that communicates with the through hole 301. The fastener 5 is threadedly connected to the countersunk threaded hole 302, and the length of the fastener 5 is greater than the length of the countersunk threaded hole 302. The fastener 5 can be a countersunk screw that fits into the countersunk threaded hole 302. One end of the fastener 5 can pass through the countersunk threaded hole 302 to the through hole 301 and abut against the outer surface of the baffle 4, thereby fixing the position of the baffle 4. The position of the fastening plate 6 can be adjusted to ensure that the raising plate 8 on the fastening plate 6 is located inside the grid hole.

Claims

1. A steel-plastic composite geogrid connection structure connecting two partially overlapping geogrids (1), characterized in that, The overlapping positions of the two geogrids (1) are provided with corresponding installation holes (103), and one side of the inner wall of the installation hole (103) is provided with multiple snap-fit ​​teeth (2) made of plastic material in the vertical direction. The connection structure includes a plastic rack (3), which is adapted to the snap-fit ​​teeth (2). A baffle (4) is detachably connected to the lower part of the rack (3). The length of the baffle (4) is greater than the inner diameter of the mounting hole (103). A fastening plate (6) integrally formed with the baffle (4) is connected to one side of the baffle (4). An anchor is inserted through the side of the fastening plate (6) that protrudes from the grid hole of the geogrid (1).

2. The steel-plastic composite geogrid connecting structure according to claim 1, characterized in that, The rack (3) has a through hole (301) at the bottom that is adapted to the baffle (4). The baffle (4) is connected to the rack (3) by a fastener (5) that passes through the rack (3) to the through hole (301).

3. The steel-plastic composite geogrid connecting structure according to claim 1, characterized in that, The upper end face of the fastening plate (6) is provided with a heightening plate (8) located in the grid hole, and the height of the heightening plate (8) is consistent with the overlap height of the two geogrids (1).

4. The steel-plastic composite geogrid connecting structure according to claim 3, characterized in that, The heightening plate (8) and the fastening plate (6) are provided with corresponding elongated holes (601) in the vertical direction. The anchor is inserted into the elongated hole (601) and the upper end of the anchor is provided with an anchor cap (901).

5. The steel-plastic composite geogrid connecting structure according to claim 1, characterized in that, The insertion direction of the rack (3) is from bottom to top.

6. The steel-plastic composite geogrid connecting structure according to claim 1, characterized in that, The upper ends of the rack (3) are chamfered on both sides.

7. The steel-plastic composite geogrid connecting structure according to claim 1, characterized in that, The length of the rack (3) is not less than twice the height of the mounting hole (103).

8. The steel-plastic composite geogrid connecting structure according to claim 2, characterized in that, The lower end of the rack (3) is provided with a countersunk threaded hole (302) that communicates with the through hole (301). The fastener (5) is threadedly connected to the countersunk threaded hole (302), and the length of the fastener (5) is greater than the length of the countersunk threaded hole (302).

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