A tensioning tool for embankment reinforced soil geogrid

By using a hinged pole and pulley structure design, the problem of the geogrid tensioning device being too large and unable to fit snugly against the foundation surface was solved, achieving a tight fit between the geogrid and the foundation surface and improving construction efficiency.

CN224578700UActive Publication Date: 2026-07-31SINOHYDRO BUREAU 11 CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SINOHYDRO BUREAU 11 CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing geogrid tensioning devices are too large to carry and cannot guarantee a tight fit between the geogrid and the foundation surface, resulting in gaps and unsatisfactory performance.

Method used

The grid is tensioned by using hinged fixed and movable uprights, combined with pulleys and hollow guide rods, and by using steel wire ropes and L-shaped steel plates to ensure that the grid fits the foundation surface and the tensioning distance can be adjusted.

Benefits of technology

This method ensures that the grid fits tightly against the foundation surface during tensioning, reducing construction difficulty and improving construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a tensioning tool for geogrid reinforcement in embankments, comprising a fixed pole and a movable pole hinged together. The tops of the fixed pole and the movable pole are flush, and the bottom of the movable pole is shorter than the fixed pole. A first pulley and a second pulley are provided on one side of the bottom of the fixed pole, and a steel wire rope is provided between the first pulley and the second pulley. One end of the steel wire rope is fixed to the bottom of the movable pole, and the other end is connected to an L-shaped steel plate. The L-shaped steel plate has multiple tensioning hooks on the side away from the steel wire rope. A vertically fixed hollow guide rod is also provided at the bottom of the fixed pole. After the movable pole rotates and pulls the steel wire rope, the L-shaped steel plate moves along the hollow guide rod. This tensioning tool for geogrid reinforcement in embankments ensures that the geogrid fits snugly against the foundation surface during tensioning, and the tensioning distance can be adjusted according to the angle of the movable pole, reducing construction difficulty and improving construction efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of backfill construction technology, and in particular to a tensioning tool for geogrid reinforcement in embankments. Background Technology

[0002] Geogrid is a geosynthetic material commonly used as reinforcement in reinforced soil structures or composite materials. When applied to protective embankments and combined with fill, it can improve the tensile strength of the fill and reduce the slope, which is crucial for embankment stability.

[0003] Utility model patent with announcement number CN202222083641.0 discloses a device for tensioning geogrids, including a support frame, a bracket fixedly connected to one side of the support frame, an adjusting screw rotatably connected inside the bracket, the adjusting screw rotatably connected to the support frame, an adjusting plate threadedly connected to the outer side of the adjusting screw, the adjusting plate slidably connected to the bracket, an adjusting rod fixedly connected to one side of the adjusting plate, and a tensioning box fixedly connected to one end of the adjusting rod; this device solves the technical problem of how to prevent accidental retraction during geogrid tensioning.

[0004] However, the aforementioned device is large and difficult to carry and move. Furthermore, the lower part of the device has a box structure, which makes it impossible to ensure that the grid is in close contact with the foundation surface when tensioning the grid. This results in a gap between the grid and the foundation surface, leading to unsatisfactory performance. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned problems by providing a drainage ditch casting and molding device that can ensure the grid fits the foundation surface during tensioning, and can adjust the tensioning distance according to the angle of the movable upright, thereby reducing construction difficulty and improving construction efficiency.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: a tensioning tool for reinforced geogrids in embankments, comprising a fixed pole and a movable pole hinged together. The tops of the fixed pole and the movable pole are flush, and the bottom movable pole is shorter than the fixed pole. A first pulley and a second pulley are provided on one side of the bottom of the fixed pole, and a steel wire rope is provided between the first pulley and the second pulley. One end of the steel wire rope is fixed to the bottom of the movable pole, and the other end is connected to an L-shaped steel plate. The L-shaped steel plate has multiple tensioning hooks on the side away from the steel wire rope.

[0007] Preferably, the bottom end of the fixed pole is also provided with a vertically fixed hollow guide rod, and the L-shaped steel plate moves along the hollow guide rod after the movable pole rotates and pulls the wire rope.

[0008] Preferably, the hollow guide rod has a bottom-opening sliding channel, and a rotating wheel that can rotate is provided in the sliding channel. The bottom surface of the rotating wheel has an extension shaft, and the bottom end of the extension shaft is fixedly connected to an L-shaped steel plate.

[0009] Preferably, a steel plate is fixed to the bottom of the fixed pole, and the bottom surface of the steel plate is provided with a plurality of spikes.

[0010] Preferably, one end of the tension hook is fixedly connected to the L-shaped steel plate, and the other end is bent downwards, with multiple tension hooks arranged in parallel.

[0011] Preferably, both the fixed upright and the movable upright are provided with multiple corresponding through holes, one of which contains a hinge shaft.

[0012] This utility model discloses a tensioning tool for geogrid reinforcement in embankments, comprising a fixed pole and a movable pole hinged together. The tops of the fixed pole and the movable pole are flush, and the bottom of the movable pole is shorter than the fixed pole. A first pulley and a second pulley are provided on one side of the bottom of the fixed pole, and a steel wire rope is provided between the first pulley and the second pulley. One end of the steel wire rope is fixed to the bottom of the movable pole, and the other end is connected to an L-shaped steel plate. The L-shaped steel plate has multiple tensioning hooks on the side away from the steel wire rope. A vertically fixed hollow guide rod is also provided at the bottom of the fixed pole. After the movable pole rotates and pulls the steel wire rope, the L-shaped steel plate moves along the hollow guide rod. Compared with the prior art, this tensioning tool for geogrid reinforcement in embankments has the advantages of ensuring that the geogrid fits snugly against the foundation surface during tensioning, and adjusting the tensioning distance according to the angle of the movable pole, thus reducing construction difficulty and improving construction efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a geogrid tensioning tool for embankment reinforcement according to the present invention. Figure 1 .

[0014] Figure 2 This is a schematic diagram of the overall structure of a geogrid tensioning tool for embankment reinforcement according to the present invention. Figure 2 .

[0015] Figure 3 This is a top view of a geogrid tensioning tool for embankment reinforcement according to the present invention.

[0016] Figure 4 This utility model Figure 1 A magnified structural diagram of point A in the middle.

[0017] Figure 5 This is a schematic diagram of the hollow guide rod in a tensioning tool for reinforced geogrids in embankments according to the present invention.

[0018] Figure 6 This is a schematic diagram illustrating the usage of a geogrid tensioning tool for embankment reinforcement according to this utility model.

[0019] In the diagram: 1. Fixed upright; 2. Movable upright; 3. Through hole; 4. Hinge shaft; 5. First pulley; 6. Second pulley; 7. Hollow guide rod; 71. Slide channel; 72. Rotating wheel; 73. Extension shaft; 8. L-shaped steel plate; 9. Steel wire rope; 10. Tensioning hook; 11. Steel plate. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0021] Please refer to Figure 1-5 A tensioning tool for geogrid reinforcement in embankments includes a fixed pole 1 and a movable pole 2 hinged together. The tops of the fixed pole 1 and the movable pole 2 are flush. The bottom of the movable pole 2 is shorter than the fixed pole 1. The shorter portion of the movable pole 2 is used to install a first pulley 5 and a second pulley 6. The first pulley 5 and the second pulley 6 are located on one side of the bottom of the fixed pole 1. Both the first pulley 5 and the second pulley 6 have V-shaped grooves on their circumferences. A steel wire rope 9 is provided between the first pulley 5 and the second pulley 6. The steel wire rope 9 is always located in the V-shaped groove between the two pulleys to prevent it from detaching. One end of the steel wire rope 9 is fixed to the bottom of the movable pole 2, and the other end is connected to an L-shaped steel plate 7. The L-shaped steel plate 7 has multiple tensioning hooks 10 on the side away from the steel wire rope 9.

[0022] Since the fixed pole 1 and the movable pole 2 are hinged, when the top of the movable pole 2 swings toward the L-shaped steel plate 8, the other end tilts up. After tilting up, the wire rope 9 is stretched, causing the L-shaped steel plate 8 to move toward the pole. At this time, multiple tension hooks 10 will pull the steel grid to complete the tensioning of the grid. The overall flexibility is high and it is easy to use. Moreover, the overall structure is simple and easy to carry.

[0023] To ensure close contact between the grid and the foundation surface during tensioning, the bottom end of the fixed pole 1 is also equipped with a vertically fixed hollow guide rod 7, such as... Figure 6 As shown, after the movable upright 2 rotates and pulls the steel wire rope 9, the L-shaped steel plate 8 moves along the hollow guide rod 7.

[0024] Specifically, the hollow guide rod 7 is provided with a bottom-opening sliding channel 71, and a rotatable rotating wheel 72 is provided in the sliding channel 71. The bottom surface of the rotating wheel 72 is provided with an extension shaft 73, which extends downward at the bottom opening of the sliding channel 71. The bottom end of the extension shaft 73 is fixedly connected to the L-shaped steel plate 8.

[0025] Therefore, when the top of the movable upright 2 swings towards the L-shaped steel plate 8, the other end tilts up. At this time, the wire rope pulls the L-shaped steel plate 8. Due to the setting of the hollow guide rod 7, the L-shaped steel plate 8 moves along the hollow guide rod 7, thereby ensuring that the grid is in close contact with the foundation surface and is easy to move.

[0026] Based on the above embodiments, in order to ensure the stability of the fixed pole 1, a steel plate 11 is fixed at the bottom of the fixed pole 1. The bottom surface of the steel plate 11 is provided with multiple spikes. When in use, the construction personnel insert the spikes into the foundation and hold the fixed pole 1 by hand during the tensioning process.

[0027] As a preferred embodiment, one end of the tension hook 10 is fixedly connected to the L-shaped steel plate 8, and the other end is bent downward. Multiple tension hooks 10 are arranged in parallel to facilitate uniform hooking of the grid and synchronous tensioning.

[0028] As a preferred embodiment, both the fixed upright 1 and the movable upright 2 are provided with multiple corresponding through holes 3, one of which is provided with a hinge shaft 4. The hinge shaft 4 is detachable and the position of the hinge shaft 4 can be selected according to the tensioning distance.

[0029] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A tensiometer for embankment reinforced soil geogrids, characterized in that, The device includes a fixed upright and a movable upright, which are hinged together. The tops of the fixed upright and the movable upright are flush, and the bottom of the movable upright is shorter than the fixed upright. A first pulley and a second pulley are provided on one side of the bottom of the fixed upright. A steel wire rope is provided between the first pulley and the second pulley. One end of the steel wire rope is fixed to the bottom of the movable upright, and the other end is connected to an L-shaped steel plate. The L-shaped steel plate has multiple tension hooks on the side away from the steel wire rope.

2. The embankment geogrid tensioning tool of claim 1, wherein, The bottom end of the fixed pole is also provided with a vertically fixed hollow guide rod. After the movable pole rotates and pulls the wire rope, the L-shaped steel plate moves along the hollow guide rod.

3. The embankment geogrid tensioning tool of claim 2, wherein, The hollow guide rod has a bottom-opening sliding channel, and a rotating wheel is provided in the sliding channel. The bottom surface of the rotating wheel has an extension shaft, and the bottom end of the extension shaft is fixedly connected to an L-shaped steel plate.

4. The embankment geogrid tensioning tool of claim 1, wherein, The bottom of the fixed pole is fixed with a steel plate, and the bottom surface of the steel plate is provided with multiple spikes.

5. The embankment geogrid tensioning tool of claim 1, wherein, One end of the tension hook is fixedly connected to the L-shaped steel plate, and the other end is bent downwards. Multiple tension hooks are arranged in parallel.

6. The embankment geogrid tensioning tool of claim 1, wherein, Both the fixed and movable uprights are provided with multiple corresponding through holes, one of which contains a hinge shaft.