A new type of geogrid fixing device

Abstract

A novel geogrid fixing device comprises a strip pressure plate and strip plug plates at the lower sides of both ends thereof, wherein the lower ends of the plug plates are pointed-angle structures; plate-shaped internal ribs are vertically arranged between the pressure plate and the plug plates, the internal ribs comprise a first edge and a second edge which are perpendicular to each other, and are respectively welded to the lower side of the pressure plate and the inner side of the plug plates, the internal ribs also comprise a third edge which intersects with the second edge, one end of which is fitted with the plug plates, and the other end is inclined to point to the upper inner side of the plug plates; plate-shaped external ribs are vertically arranged at the lower outer side of the plug plates, comprising an intersecting fourth edge and a fifth edge, wherein the fourth edge is welded to the outer side of the plug plates, one end of the fifth edge is fitted with the plug plates, and the other end is inclined to point to the upper outer side of the plug plates, the pressure plate, the plug plates, the internal ribs and the external ribs cooperate with each other, thereby ensuring that the fixing device has good structural strength, is not easy to deform when the roadbed surface in which it is implanted is hard, and at the same time significantly ensures its fixing effect on the geogrid.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing nails, in particular to a novel geogrid fixing device. Background Art

[0002] Geogrid is a main geosynthetic material, generally in the form of a two-dimensional grid or a three-dimensional grid screen with a certain height. During the roadbed construction process, it usually plays a good reinforcement role for the laying of the roadbed. After the geogrid is laid, the joints of adjacent geogrids need to be crimped for at least 20 cm and fixed by fixing nails. At the same time, to ensure the fixing effect, the fixing nails are usually set to U-shape. Existing U-shaped fixing nails, such as the U-shaped nail with telescopic function disclosed in the application document with application number CN201720819153.8 in the patent library, are usually made by bending a steel bar. This kind of U-shaped nail, due to its low structural strength during use, cannot usually ensure the implantation depth when the roadbed surface is hard, resulting in loosening of the geogrid. If it is forcibly implanted, it may even bend and deform. Moreover, due to the structure of the U-shaped nail, the geogrid still has room for movement inside it, which will also affect the fixing effect of the geogrid. Utility Model Content

[0003] In order to solve the technical problems mentioned in the above background technology, the utility model provides a novel geogrid fixing device.

[0004] The technical solution of this utility model is as follows:

[0005] A novel geogrid fixing device comprises a transversely arranged strip pressure plate, at the lower sides of both ends of the pressure plate are vertically provided with strip plug plates perpendicular to the pressure plate, and the lower ends of the plug plates are pointed structures. The pressure plate and the two plug plates together form a U-shaped structure, and the geogrid can be fixed by implanting the tip of the plug plate downward into the roadbed.

[0006] As one of the core technical concepts of the present invention, a plate-shaped built-in rib is vertically arranged between the pressure plate and the plug plate, which includes a first edge and a second edge that are perpendicular to each other, and the first edge and the second edge are respectively welded to the lower side of the pressure plate and the inner side of the plug plate, and the built-in rib also includes a third edge that intersects with the second edge, one end of the third edge is in contact with the plug plate, and the other end is inclined to point to the upper inner side of the plug plate. On the basis of this structure, the pressure plate and the plug plate can be better fixed by the built-in ribs, thereby ensuring the structural strength of the fixing device (the above-mentioned new type of geogrid fixing device). At the same time, the setting of the third edge of the built-in rib enables the soil between the two built-in ribs to receive an inward squeezing effect when the fixing device is implanted downward into the roadbed. At this time, when the fixing device is implanted into the pressure plate to compress the geogrid, the upper ends of the two built-in ribs can provide a better fixing effect for the geogrid, thereby preventing the geogrid from loosening inside the fixing device.

[0007] As another core technical concept of the utility model, the lower outer side of the plug plate is also vertically provided with a plate-shaped external rib, which includes an intersecting fourth edge and a fifth edge, wherein the fourth edge is welded to the outer side of the plug plate, one end of the fifth edge is in contact with the plug plate, and the other end is inclined to point upward to the outer side of the plug plate. The setting of the fifth edge of the external rib enables the two external ribs to provide an inward squeezing effect for the plug plate when the fixing device is implanted downward into the roadbed, thereby avoiding the eversion phenomenon caused when the plug plate is implanted. The pressure plate, the plug plate, the internal ribs and the external ribs cooperate with each other to ensure that the fixing device has good structural strength, and is not easy to deform when the roadbed surface into which it is implanted is hard, while ensuring its fixing effect on the geogrid.

[0008] In the novel geogrid fixing device as described above, the lower end of the plug plate is an isosceles triangle structure with the sharp corner facing downward, so as to avoid the deflection phenomenon when the plug plate is implanted into the roadbed and ensure that the plug plate can complete the implantation work vertically.

[0009] As a preferred embodiment, the lower end sharp angle of the plug board is the first plug angle. In order to make the plug board more easily implanted into the roadbed surface and prevent the lower end of the plug board from being deformed by the rigidity, the degree of the first plug angle is 20-30 degrees.

[0010] In the novel geogrid fixing device as described above, the built-in ribs are of a right-angled triangle structure, so that the inner side of the upper end of the built-in ribs can better provide a clamping and fixing force for the geogrid, thereby ensuring the fixing effect of the geogrid.

[0011] As a preferred embodiment, the angle between the second edge and the third edge is a second insertion angle. To ensure the implantation effect of the built-in ribs and prevent the setting of the built-in ribs from affecting the implantation of the plug plate, the second insertion angle is 15-25 degrees.

[0012] In the novel geogrid fixing device as described above, in order to ensure that the external reinforcement can better provide an inward squeezing force for the plug plate and at the same time ensure the connection stability between the external reinforcement and the plug plate, the external reinforcement is a right-angled triangle structure.

[0013] As a preferred embodiment, the angle between the fourth edge and the fifth edge is a third insertion angle. To ensure the implantation effect of the external ribs and prevent the setting of the external ribs from affecting the implantation of the plug plate, the degree of the third insertion angle is 10-20 degrees.

[0014] In the novel geogrid fixing device as described above, in order to further ensure the structural strength of the fixing device itself, the pressing plate and the inserting plate are formed by bending steel strips in one piece.

[0015] The beneficial effects of the utility model are:

[0016] 1) The setting of the internal reinforcement can better fix the pressing plate and the plug plate to ensure the structural strength of the fixing device. At the same time, when the fixing device is implanted downward into the roadbed, the soil between the two internal reinforcements will receive an inward squeezing effect. At this time, when the fixing device is implanted into the pressing plate to press the geogrid, the upper ends of the two internal reinforcements can provide a better fixing effect for the geogrid to prevent the geogrid from loosening inside the fixing device;

[0017] 2) The setting of external reinforcement enables the fixing device to provide an inward squeezing effect on the plug board when it is implanted into the roadbed, thus avoiding the phenomenon of eversion when the plug board is implanted;

[0018] 3) The pressure plate, plug plate, internal ribs and external ribs cooperate with each other to ensure that the fixing device has good structural strength. When the roadbed surface where it is implanted is hard, it is still not easy to deform, while ensuring its fixing effect on the geogrid. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0020] In the attached picture:

[0021] Figure 1 is a schematic structural diagram of a fixing device in an embodiment;

[0022] Figure 2 for Figure 1 The main view;

[0023] Figure 3 for Figure 1 Side view of

[0024] Figure 4 It is a schematic diagram of the structure of the built-in ribs in the embodiment;

[0025] Figure 5 It is a schematic diagram of the structure of the external ribs in the embodiment;

[0026] The components represented by the reference numerals in the figure are:

[0027] 1. Pressing plate; 2. Inserting plate; 21. First insertion angle; 3. Internal rib; 31. First edge; 32. Second edge; 33. Third edge; 34. Second insertion angle; 4. External rib; 41. Fourth edge; 42. Fifth edge; 43. Sixth edge; 44. Third insertion angle. DETAILED DESCRIPTION

[0028] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0029] Example

[0030] This embodiment provides a novel geogrid fixing device for fixing the geogrid on the roadbed surface. The structure of the fixing device is described in detail below.

[0031] In this embodiment, see Figure 1-Figure 3 The fixing device includes a horizontally arranged strip pressure plate 1, and strip plug plates 2 perpendicular to the pressure plate 1 are vertically arranged on the lower sides of both ends of the pressure plate 1, and the lower ends of the plug plates 2 are pointed structures. The pressure plate 1 and the two plug plates 2 together form a U-shaped structure, and the geogrid can be fixed by implanting the tip of the plug plate 2 downward into the roadbed.

[0032] As a preferred embodiment, the lower end of the plug plate 2 is an isosceles triangle structure with the sharp corner facing downward, that is, the sharp corner of the lower end of the plug plate 2 is located on the vertical center line of the plug plate 2, and the lengths of the two side lines of the sharp corner are the same, thereby avoiding deflection when the plug plate 2 is implanted into the roadbed and ensuring that the plug plate 2 can complete the implantation work vertically.

[0033] As a further preferred embodiment, the sharp corner at the lower end of the plug board 2 is a first plug angle 21. In order to make the plug board 2 more easily implanted into the roadbed surface and prevent the lower end of the plug board 2 from being deformed by rigidity, the degree of the first plug angle 21 is 20-30 degrees.

[0034] More preferably, in order to ensure the structural strength of the fixing device itself, the pressing plate 1 and the inserting plate 2 are formed by integrally bending steel strips.

[0035] In this embodiment, as one of the core technical concepts of the utility model, combined with Figure 4, a plate-shaped built-in rib 3 is vertically provided between the pressing plate 1 and the plugging plate 2, and the built-in rib 3 includes a first edge 31 and a second edge 32 which are perpendicular to each other, and the first edge 31 and the second edge 32 are respectively welded to the lower side of the pressing plate 1 and the inner side of the plugging plate 2, and there is a gap between the upper ends of the two built-in ribs 3, and the built-in rib 3 also includes a third edge 33 intersecting with the second edge 32, one end of the third edge 33 is in contact with the plugging plate 2, and the other end is inclined to point to the upper inner side of the plugging plate 2. On the basis of this structure, the pressing plate 1 and the plugging plate 2 can be better fixed by the built-in rib 3, thereby ensuring the structural strength of the fixing device. At the same time, the setting of the third edge 33 of the built-in rib 3 enables the soil between the two built-in ribs 3 to receive an inward squeezing effect when the fixing device is implanted downward into the roadbed. At this time, when the fixing device is implanted into the pressing plate 1 to compress the geogrid, the upper ends of the two built-in ribs 3 can provide a better fixing effect for the geogrid, thereby preventing the geogrid from loosening inside the fixing device.

[0036] As a preferred embodiment, the built-in rib 3 is a right-angled triangle structure, that is, the first edge 31, the second edge 32 and the third edge 33 form a right-angled triangle, wherein the first edge 31 and the second edge 32 are two right-angled sides, and the third edge 33 is a hypotenuse. On the basis of this structure, it is ensured that the inner side of the upper end of the built-in rib 3 can better provide a clamping and fixing force for the geogrid, thereby ensuring the fixing effect of the geogrid.

[0037] As a further preferred embodiment, the angle between the second edge 32 and the third edge 33 (i.e., the diagonal angle of the first edge 31) is a second insertion angle 34. To ensure the implantation effect of the built-in rib 3 and prevent the setting of the built-in rib 3 from affecting the implantation of the plug board 2, the second insertion angle 34 is 15-25 degrees.

[0038] In this embodiment, as another core technical concept of the utility model, combined with Figure 5 The lower outer side of the plug plate 2 is also vertically provided with a plate-shaped external rib 4, which includes an intersecting fourth edge 41 and a fifth edge 42, wherein the fourth edge 41 is welded to the outer side of the plug plate 2, one end of the fifth edge 42 is in contact with the plug plate 2, and the other end is inclined to point to the upper outer side of the plug plate 2. The fourth edge 41 of the external rib 4 is set so that when the fixing device is implanted downward into the roadbed, the two external ribs 4 can provide an inward squeezing effect for the plug plate 2 to avoid the eversion phenomenon when the plug plate 2 is implanted. The pressing plate 1, the plug plate 2, the internal rib 3 and the external rib 4 cooperate with each other to ensure that the fixing device has good structural strength, and is not easy to deform when the roadbed surface is hard, while ensuring its fixing effect on the geogrid.

[0039] As a preferred embodiment, in order to ensure that the external rib 4 can better provide an inward extrusion force for the plug board 2 and at the same time ensure the connection stability between the external rib 4 and the plug board 2, the external rib 4 is a right-angled triangle structure, that is, the external rib 4 also includes a sixth edge 43 perpendicular to the fourth edge 41, and the fourth edge 41, the fifth edge 42 and the sixth edge 43 form a right-angled triangle, wherein the fourth edge 41 and the sixth edge 43 are two right-angled sides, and the fifth edge 42 is a hypotenuse.

[0040] As a further preferred embodiment, the angle between the fourth edge 41 and the fifth edge 42 (i.e., the diagonal angle of the sixth edge 43) is a third insertion angle 44. To ensure the implantation effect of the external rib 4 and prevent the setting of the external rib 4 from affecting the implantation of the plug plate 2, the degree of the third insertion angle 44 is 10-20 degrees.

Claims

1. A novel geogrid fixing device, characterized in that: It comprises a strip-shaped pressing plate (1) arranged transversely, strip-shaped inserting plates (2) perpendicular to the pressing plate (1) being arranged vertically on the lower sides of both ends of the pressing plate (1), and the lower ends of the inserting plates (2) are pointed-angle structures; A plate-shaped internal rib (3) is also vertically provided between the pressing plate (1) and the plugging plate (2), and includes a first edge (31) and a second edge (32) which are perpendicular to each other, and the first edge (31) and the second edge (32) are respectively welded to the lower side of the pressing plate (1) and the inner side of the plugging plate (2), and the internal rib (3) also includes a third edge (33) intersecting with the second edge (32), one end of the third edge (33) is in contact with the plugging plate (2), and the other end is inclined to point to the inner side and upper side of the plugging plate (2); The lower outer portion of the plug board (2) is also vertically provided with a plate-shaped external rib (4), which includes a fourth edge (41) and a fifth edge (42) intersecting each other, wherein the fourth edge (41) is welded to the outer side of the plug board (2), and one end of the fifth edge (42) is in contact with the plug board (2), and the other end is inclined to point upward to the outer side of the plug board (2).

2. A novel geogrid fixing device according to claim 1, characterized in that: The lower end of the inserting plate (2) is an isosceles triangle structure with the pointed corner facing downward.

3. A novel geogrid fixing device according to claim 2, characterized in that: The sharp angle at the lower end of the plug board (2) is a first plug angle (21), and the degree of the first plug angle (21) is 20-30 degrees.

4. A novel geogrid fixing device according to claim 1, characterized in that: The built-in rib (3) is a right-angled triangle structure.

5. A novel geogrid fixing device according to claim 4, characterized in that: The included angle between the second edge (32) and the third edge (33) is a second insertion angle (34), and the degree of the second insertion angle (34) is 15-25 degrees.

6. A novel geogrid fixing device according to claim 1, characterized in that: The external rib (4) is a right-angled triangle structure.

7. A novel geogrid fixing device according to claim 6, characterized in that: The included angle between the fourth edge (41) and the fifth edge (42) is a third insertion angle (44), and the degree of the third insertion angle (44) is 10-20 degrees.

8. A novel geogrid fixing device according to any one of claims 1 to 7, characterized in that: The pressing plate (1) and the inserting plate (2) are formed by integrally bending steel strips.

Images