Road widening civil grating fixing device
By designing a road widening geogrid fixing device, a gear and rack mechanism is used to transmit power and realize the automatic fixing of the impact head to the gate nail, which solves the problem of high labor intensity for construction workers and improves fixing efficiency and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-08
AI Technical Summary
In highway widening projects, the process of fixing geogrids requires construction workers to repeatedly squat down and bend over to strike the ground with hammers, resulting in high labor intensity.
Design a fixing device for geogrid in highway widening. By rotating the shaft, the impact head repeatedly strikes the gate nail, achieving a fixing operation that does not require bending over. The power transmission and linear motion of the impact head are achieved by using a gear and rack mechanism.
It reduces the labor intensity of construction workers and improves the efficiency and convenience of fixing geogrids.
Smart Images

Figure CN224213090U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road construction technology, specifically to a fixing device for earth and wood grids for highway widening. Background Technology
[0002] Geogrid is a major geosynthetic material, generally in the form of a two-dimensional mesh or a three-dimensional mesh screen with a certain height. During the roadbed construction process, it usually plays a good role in reinforcing the roadbed. After the geogrid is laid, adjacent geogrid meshes are fixed with portal nails.
[0003] In existing technologies, geogrids are used extensively and laid over long distances in highway widening projects, resulting in numerous anchoring points. The fixing nails require construction workers to squat down and hammer them into the ground, causing them to repeatedly squat and bend over, leading to high labor intensity.
[0004] Therefore, it is particularly important to improve the existing highway widening geogrid fixing device, design a new type of highway widening geogrid fixing device to solve the above-mentioned technical defects, and improve the overall practicality of the highway widening geogrid fixing device. Utility Model Content
[0005] The purpose of this utility model is to provide a fixing device for highway widening earthwork grids. During the fixing and installation of highway widening earthwork grids, the rotating shaft enables the impact head to repeatedly impact the gate nails, avoiding the phenomenon of bending and knocking, thereby solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A road widening geogrid fixing device includes a sleeve, with an extension side symmetrically fixedly connected to the bottom of the sleeve. A rectangular box is fixedly connected to the outside of the sleeve, and a shaft is rotatably connected inside the rectangular box. A drive rod is fixedly connected to the top of the shaft, and a swing rod is fixedly connected to the end of the shaft away from the drive rod. A driven rod is rotatably connected to the end of the swing rod away from the drive rod, and a sector gear is rotatably connected to the end of the driven rod away from the swing rod. A first fixing frame and a second fixing frame are fixedly connected inside the sleeve. A sliding rod is slidably connected inside the first fixing frame, and the sliding rod extends to the outside of the second fixing frame and is slidably connected to the second fixing frame.
[0008] As a preferred embodiment of this utility model, the end of the sector gear away from the driven rod is rotatably connected to the outside of the first fixed frame, and the bottom end of the second fixed frame is rotatably connected to a synchronous shaft.
[0009] As a preferred embodiment of this utility model, a first gear and a second gear are fixedly connected to the outside of the synchronous shaft, and the second gear and the sector gear are connected by meshing.
[0010] As a preferred embodiment of this utility model, a toothed groove is provided at the bottom of the sliding rod corresponding to the position of the first gear, and the sliding rod is meshed with the first gear through the toothed groove. An extension rod is fixedly connected to the end of the sliding rod away from the first fixed frame, and an impact head is fixedly connected to the end of the extension rod away from the sliding rod.
[0011] As a preferred embodiment of this utility model, a clamping frame is symmetrically fixedly connected to the inner sidewall of the extended side, a door-shaped nail is slidably connected inside the clamping frame, and a bevel is symmetrically fixedly connected to the inner sidewall of the door-shaped nail.
[0012] As a preferred embodiment of this utility model, a fixed base is fixedly connected to the outer end of the sleeve and the end away from the insertion shaft, an auxiliary handle is rotatably connected inside the fixed base, and a barrier strip is fixedly connected to the bottom end of the auxiliary handle.
[0013] As a preferred embodiment of this utility model, a connecting plate is fixedly connected to the bottom end of the sleeve, a roller is rotatably connected to the outside of the connecting plate, and a handle is symmetrically fixedly connected to the top end of the sleeve.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] In this invention, the drive rod drives the insertion shaft to rotate, generating a pulling force on the driven rod. The sector gear rotates and meshes with the second gear, which then drives the synchronous shaft to rotate, achieving synchronous rotation of the first and second gears. They mesh with the tooth grooves, generating a thrust on the sliding rod. Subsequently, the extension rod and the impact head move synchronously, rotating the portal nail through the impact head. The portal nail then enters the ground, fixing the grid mesh. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the impact head structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the sector gear structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the door-type nail structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the auxiliary handle structure of this utility model.
[0021] In the diagram: 1. Sleeve; 2. Extension side; 3. Rectangular box; 4. Insert shaft; 5. Drive rod; 6. Swing rod; 7. Driven rod; 8. Sector gear; 9. First fixed frame; 10. Second fixed frame; 11. Sliding rod; 12. Synchronous shaft; 13. First gear; 14. Second gear; 15. Extension rod; 16. Impact head; 17. Clamping frame; 18. Door pin; 19. Bevel; 20. Fixed seat; 21. Auxiliary handle; 22. Barrier strip; 23. Roller; 24. Grip. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0023] Example: Please refer to Figures 1-5 This utility model provides a technical solution:
[0024] A road widening geogrid fixing device includes a sleeve 1. An extension side 2 is symmetrically fixedly connected to the bottom of the sleeve 1. A rectangular box 3 is fixedly connected to the outside of the sleeve 1. A shaft 4 is rotatably connected inside the rectangular box 3. A drive rod 5 is fixedly connected to the top of the shaft 4. A swing rod 6 is fixedly connected to the end of the shaft 4 away from the drive rod 5. A driven rod 7 is rotatably connected to the end of the swing rod 6 away from the drive rod 5. A sector gear 8 is rotatably connected to the end of the driven rod 7 away from the swing rod 6. A first fixing frame 9 and a second fixing frame 10 are fixedly connected inside the sleeve 1. A sliding rod 11 is slidably connected inside the first fixing frame 9. The moving rod 11 extends to the outside of the second fixed frame 10 and is slidably connected to the second fixed frame 10. By keeping the sleeve 1 perpendicular to the ground, pressure is applied to the driving rod 5, which drives the insert shaft 4 to rotate. The insert shaft 4 then rotates, generating a pulling force on the swing rod 6. The swing rod 6 rotates and generates a pulling force on the driven rod 7. Since one end of the driven rod 7 generates a pulling force with the sector gear 8, the sector gear 8 then rotates, simultaneously sliding the sliding rod 11. At the same time, the first fixed frame 9 and the second fixed frame 10 limit the sliding rod 11, causing it to move along a predetermined path.
[0025] Furthermore, in this embodiment, the end of the sector gear 8 away from the driven rod 7 is rotatably connected to the outside of the first fixed frame 9, and the bottom end of the second fixed frame 10 is rotatably connected to the synchronous shaft 12. As one end of the driven rod 7 swings, the other end of the sector gear 8 is then limited by the first fixed frame 9, so that one end of it is the point of force and rotates.
[0026] Furthermore, in this embodiment, a first gear 13 and a second gear 14 are fixedly connected to the outside of the synchronous shaft 12. The second gear 14 is connected to the sector gear 8 in an meshing manner. When the sector gear 8 swings, it meshes with the second gear 14. At the same time, the second gear 14 rotates, which in turn drives the synchronous shaft 12 to rotate, so that the first gear 13 and the second gear 14 rotate synchronously.
[0027] Furthermore, in this embodiment, a toothed groove is provided at the bottom of the sliding rod 11 corresponding to the position of the first gear 13. The sliding rod 11 is meshed with the first gear 13 through the toothed groove. An extension rod 15 is fixedly connected to the end of the sliding rod 11 away from the first fixed frame 9. An impact head 16 is fixedly connected to the end of the extension rod 15 away from the sliding rod 11. As the first gear 13 rotates, it meshes with the toothed groove and then generates a thrust on the sliding rod 11, so that the sliding rod 11 slides. Then the extension rod 15 and the impact head 16 move synchronously. By continuously rotating the insertion shaft 4, the impact head 16 makes a linear repetitive motion.
[0028] Furthermore, in this embodiment, a clamping frame 17 is symmetrically fixedly connected to the inner sidewall of the extended side 2, and a gate-shaped nail 18 is slidably connected inside the clamping frame 17. An inclined side 19 is symmetrically fixedly connected to the inner sidewall of the gate-shaped nail 18. By inserting the gate-shaped nail 18 into the interior of the clamping frame 17, and then the extended side 2 contacts the ground, the gate-shaped nail 18 becomes the space between the grid mesh. The gate-shaped nail 18 is rotated by the impact head 16, and then the gate-shaped nail 18 enters the ground to fix the grid mesh.
[0029] Furthermore, in this embodiment, a fixed base 20 is fixedly connected to the outer end of the sleeve 1 and the end away from the insertion shaft 4. An auxiliary handle 21 is rotatably connected inside the fixed base 20. A blocking strip 22 is fixedly connected to the bottom end of the auxiliary handle 21. By moving the auxiliary handle 21, the blocking strip 22 will block the interior of the fixed base 20, so that the auxiliary handle 21 and the sleeve 1 are at a 90-degree angle, which facilitates the force when rotating the drive rod 5.
[0030] Furthermore, in this embodiment, a connecting plate is fixedly connected to the bottom end of the sleeve 1, and a roller 23 is rotatably connected to the outside of the connecting plate. A handle 24 is symmetrically fixedly connected to the top end of the sleeve 1. The roller 23 contacts the ground, driving the sleeve 1 to move to any location. The design of the handle 24 facilitates the extraction of the entire sleeve.
[0031] In this embodiment, the specific implementation scenario is as follows: By keeping the sleeve 1 perpendicular to the ground, inserting the gantry nail 18 into the clamping frame 17, and then extending the side 2 to contact the ground, the gantry nail 18 is positioned between the grid meshes. Pressure is applied to the drive rod 5, causing the drive rod 5 to rotate the insertion shaft 4. The rotation of the insertion shaft 4 then generates tension on the swing rod 6, which in turn rotates and generates tension on the driven rod 7. Since one end of the driven rod 7 generates tension with the sector gear 8, the sector gear 8 rotates and meshes with the second gear 14. In response, the second gear 14 rotates, which in turn drives the synchronous shaft 12 to rotate, so that the first gear 13 and the second gear 14 rotate synchronously. As the first gear 13 rotates, it meshes with the tooth groove and then generates a thrust on the sliding rod 11, causing the sliding rod 11 to slide. Then the extension rod 15 and the impact head 16 move synchronously. By continuously rotating the insertion shaft 4, the impact head 16 makes a linear repetitive motion. The impact head 16 rotates the gate nail 18, and then the gate nail 18 enters the ground to fix the grid mesh.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fixing device for road widening geogrid, comprising a sleeve (1), characterized in that: The bottom of the sleeve (1) is symmetrically fixedly connected with an extension side (2). The outside of the sleeve (1) is fixedly connected with a rectangular box (3). The inside of the rectangular box (3) is rotatably connected with a shaft (4). The top of the shaft (4) is fixedly connected with a drive rod (5). The end of the shaft (4) away from the drive rod (5) is fixedly connected with a swing rod (6). The end of the swing rod (6) away from the drive rod (5) is rotatably connected with a driven rod (7). The end of the driven rod (7) away from the swing rod (6) is rotatably connected with a sector gear (8). The inside of the sleeve (1) is fixedly connected with a first fixed frame (9) and a second fixed frame (10). The inside of the first fixed frame (9) is slidably connected with a sliding rod (11). The sliding rod (11) extends to the outside of the second fixed frame (10) and is slidably connected to the second fixed frame (10).
2. The road widening geogrid fixing device according to claim 1, characterized in that: The end of the sector gear (8) away from the driven rod (7) is rotatably connected to the outside of the first fixed frame (9), and the bottom end of the second fixed frame (10) is rotatably connected to the synchronous shaft (12).
3. The road widening geogrid fixing device according to claim 2, characterized in that: The synchronous shaft (12) is fixedly connected to a first gear (13) and a second gear (14), and the second gear (14) is connected to the sector gear (8) in an meshing connection.
4. The road widening geogrid fixing device according to claim 3, characterized in that: The bottom of the sliding rod (11) is provided with a tooth groove at the position corresponding to the first gear (13). The sliding rod (11) is meshed with the first gear (13) through the tooth groove. An extension rod (15) is fixedly connected to the end of the sliding rod (11) away from the first fixed frame (9). An impact head (16) is fixedly connected to the end of the extension rod (15) away from the sliding rod (11).
5. The road widening geogrid fixing device according to claim 1, characterized in that: A clamping frame (17) is symmetrically fixedly connected to the inner wall of the extended side (2), and a door-shaped nail (18) is slidably connected inside the clamping frame (17). A bevel (19) is symmetrically fixedly connected to the inner wall of the door-shaped nail (18).
6. The road widening geogrid fixing device according to claim 1, characterized in that: A fixed base (20) is fixedly connected to the outer end of the sleeve (1) and away from the insertion shaft (4). An auxiliary handle (21) is rotatably connected inside the fixed base (20). A barrier strip (22) is fixedly connected to the bottom end of the auxiliary handle (21).
7. The road widening geogrid fixing device according to claim 1, characterized in that: A connecting plate is fixedly connected to the bottom end of the sleeve (1), and a roller (23) is rotatably connected to the outside of the connecting plate. A handle (24) is symmetrically fixedly connected to the top end of the sleeve (1).