Clamp tool for testing steel-plastic geogrid

Abstract

The utility model relates to the technical field of steel-plastic geogrid testing, in particular to a steel-plastic geogrid testing clamp tool which comprises a bearing plate and a guide rail, two driving sliding seats are arranged at symmetrical positions of the right side wall of the bearing plate in a sliding mode, and a vertical rod is detachably connected between the two side walls of each driving sliding seat. The vertical rods are rotationally sleeved with connecting rods capable of sliding in the longitudinal direction of the vertical rods, two inner clamping plates are slidably arranged on the portions, located in the two vertical rods, of the guide rails, inner belts are rotationally arranged in the side walls, close to each other, of the two inner clamping plates, and the side walls, away from each other, of the two inner clamping plates can be detachably connected with one ends of the connecting rods in a sleeved mode. According to the steel-plastic geogrids, no matter a single grid strip is fixed, or two grid strips spaced by a certain distance or two farthest grid strips are clamped and fixed, only the connecting part at the other end of the connecting rod needs to be adjusted, and adjustment can be conveniently conducted according to the steel-plastic geogrids of different sizes; and the situation that clamping is not stable when only a single grid bar is clamped and fixed is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel-plastic geogrid testing, in particular to a steel-plastic geogrid testing fixture tooling. Background Art

[0002] Geogrid is a kind of geosynthetics. Geogrid is often used as reinforcement material for reinforced soil structure or reinforcement material for composite materials. Geogrid is divided into four categories: plastic geogrid, steel-plastic geogrid, glass fiber geogrid and polyester warp-knitted polyester geogrid. Among them, steel-plastic geogrid is made of high-strength steel wire (or other fibers), which is specially treated, combined with polyethylene and other additives, and extruded into a composite high-strength tensile strip with rough embossing on the surface. It is a high-strength reinforced geogrid. Steel-plastic geogrid is usually a single belt and is woven or sandwiched at a certain interval in the longitudinal and transverse directions. The intersection is welded by special enhanced bonding fusion welding technology to form it. Before the application of steel-plastic geogrid, its sides need to be cut and sampled, and then the sample is clamped with a prism-type or jaw clamp to carry out some necessary strength or tensile tests, thereby detecting the product quality of steel-plastic geogrid.

[0003] Before conducting strength or tensile tests on the steel-plastic geogrid, the steel-plastic geogrid needs to be clamped and fixed, and a consistent test fixture needs to be applied, which is generally a prism-type or jaw clamp. However, due to the small adjustable range of this type of test fixture, it is often only possible to clamp a single grid bar of the steel-plastic geogrid, and it is difficult to clamp and fix two grid bars separated by a certain distance or the two farthest grid bars of the steel-plastic geogrid, resulting in a narrow clamping range. When facing some larger-sized steel-plastic geogrids, unstable clamping may occur, affecting subsequent strength or tensile tests. At the same time, when the fixture is clamped, since the clamping part and the steel-plastic geogrid are often in rigid contact, and since most of the grid bars are long strips, the contact area is small, slipping may occur, which also leads to unstable clamping and affects subsequent strength or tensile tests.

[0004] Therefore, it is necessary to invent a steel-plastic geogrid test fixture to solve the above problems. Utility Model Content

[0005] In order to address the deficiencies of the prior art, the purpose of the utility model is to provide a steel-plastic geogrid test fixture, which solves the problem in the prior art that it is difficult to clamp and fix two grid bars separated by a certain distance or the two farthest grid bars of the steel-plastic geogrid, resulting in a narrow clamping range. When facing some larger-sized steel-plastic geogrids, unstable clamping may occur, affecting subsequent strength or tensile tests. At the same time, when the fixture is clamped, since the clamping part and the steel-plastic geogrid are often in rigid contact, and since most of the grid bars are long strips, the contact area is small, slipping may occur, which also leads to unstable clamping and affects subsequent strength or tensile tests.

[0006] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0007] A steel-plastic geogrid test fixture tooling, comprising a load-bearing plate and a guide rail arranged on the left side wall of the load-bearing plate, two driving slides are arranged at symmetrical positions on the right side wall of the load-bearing plate so as to synchronously move closer or farther away from each other, a vertical rod that can slide along the guide rail is detachably connected between the two side walls of the driving slide, a connecting rod that can slide longitudinally along the vertical rod is rotatably sleeved on the vertical rod, two inner clamping plates are slidably arranged on the part of the guide rail located inside the two vertical rods, and an inner belt that can slide and abut against the side edge of a single grid bar in the steel-plastic geogrid is rotatably arranged inside the side wall of the two inner clamping plates that are close to each other, and the two inner clamping plates The side walls that are far away from each other can be detachably connected to one end of the connecting rod, and the part of the guide rail located outside the two vertical poles is slidably provided with two outer top plates, and the inside of the side walls of the two outer top plates that are far away from each other are rotatably provided with outer belts that can slide and abut against the side edges of two grille bars separated by the steel-plastic geogrid, and the side walls of the two outer top plates that are close to each other can be detachably connected to one end of the connecting rod, and the side walls of the two inner splints that are close to each other are connected with inner side abutment plates that can abut against the end of the grille bars, and the side walls of the two outer top plates that are far away from each other are connected with outer side abutment plates that can abut against the end of the grille bars.

[0008] As a preferred solution of the utility model, the center of the left side wall of the guide rail is detachably connected to a middle clamping seat, and the two sides of the left side wall of the guide rail are detachably connected to side clamping seats, cross bars are connected between the two sides of the middle clamping seat and the two side clamping seats, the inner clamping plate and the outer top plate on the same side are slidably mounted on the cross bar on the same side, and the part of the cross bar located between the middle clamping seat and the inner clamping plate is mounted with an inner spring, and the part of the cross bar located between the side clamping seat and the outer top plate is mounted with an outer spring.

[0009] As a preferred solution of the utility model, both side walls of the driving slide are connected with connecting frames, and an extension plate that can slide along the guide rail is commonly connected between the other ends of the two connecting frames. The end of the extension plate away from the guide rail is connected with a mounting seat, and the vertical rod is detachably arranged in the mounting seat.

[0010] As a preferred solution of the utility model, the outer peripheral side wall of the inner belt and the outer peripheral side wall of the outer belt are both detachably provided with anti-slip pads.

[0011] As a preferred scheme of the utility model, the inner clamping plate is connected to an inner sliding seat which can slide along the guide rail at one end close to the bearing plate, and the side walls of the two inner clamping plates that are far away from each other are removably installed with an inner mounting frame, an inner clamping column is installed in the inner mounting frame, and the end of the connecting rod away from the vertical pole is removably sleeved with the inner clamping column, and the outer top plate is connected to an outer sliding seat which can slide along the guide rail at one end close to the bearing plate, and the side walls of the two outer top plates that are close to each other are removably installed with an outer mounting frame, and an outer clamping column is installed in the outer mounting frame, and the end of the connecting rod away from the vertical pole is removably sleeved with the outer clamping column.

[0012] As a preferred solution of the utility model, a rotating part is detachably installed at the center of the right side wall of the supporting plate, and side fixing seats are connected to both sides of the right side wall of the supporting plate. Screws are detachably installed at the two rotating output ends of the rotating part, and the other end of the screw is rotatably abutted against the side fixing seat at the corresponding position, and the rotation directions of the two screws are opposite, and the two driving slides are respectively threadedly sleeved on the corresponding screws.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] In the utility model, when it is necessary to clamp and fix a single grid bar of the steel-plastic geogrid, the connecting rod is rotated to a state of being sleeved with the side wall of the inner clamping plate. At this time, the two driving slides are driven to slide close to each other, so that the two vertical rods and the two connecting rods slide close to each other along the guide rails, that is, the two inner clamping plates are driven to slide close to each other until they respectively abut against the two side edges of the grid bar. Subsequently, the inner belt can be driven to rotate, so that the end of the single grid bar gradually moves toward the inner edge abutment plate through the rotation friction force of the inner belt until it abuts against the inner edge abutment plate, and finally The two side walls of a single grille bar are clamped and fixed by two inner belts, and the ends of the grille bar are fixed by the inner edge abutment plates to complete the clamping and fixing of the single grille bar; when it is necessary to clamp and fix two grille bars at a certain distance apart or the two farthest grille bars of the steel-plastic civil grating, the connecting rod is rotated to a state of being sleeved with the side walls of the outer top plate. At this time, the two driving slides are driven to slide away from each other, so that the two vertical rods and the two connecting rods slide away from each other, that is, the two outer top plates are driven to slide away from each other until they are respectively connected to the two grille bars at a certain distance apart. The sides of the grating bars or the two farthest grating bars are abutted, and then the outer belt can be driven to rotate, so that the ends of the two grating bars or the two farthest grating bars separated by a certain distance are gradually moved toward the outer edge plate by the rotational friction force of the outer belt until they abut against the outer edge plate, and finally the two outer belts are clamped to clamp the two grating bars or the two farthest grating bars, respectively, and the ends of the grating bars are abutted and fixed by the outer edge plate, so as to complete the clamping and fixing of the two grating bars or the two farthest grating bars separated by a certain distance. No matter whether it is to fix a single grating bar or to clamp and fix two grating bars or the two farthest grating bars separated by a certain distance, it is only necessary to adjust the connecting part at the other end of the connecting rod, so as to facilitate adjustment according to different sizes of steel-plastic geogrids, and avoid the unstable clamping situation when only a single grating bar is clamped and fixed. At the same time, the movement of the grating bar to the inner edge plate or the outer edge plate is completed by the rotational friction force of the inner belt and the outer belt, respectively, which can effectively avoid the slipping phenomenon during rigid contact, further improve the clamping stability, and facilitate subsequent strength or tension testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model when the connecting rod and the inner clamping plate are sleeved;

[0016] Figure 2 This is a schematic diagram of the overall structure of the utility model when the connecting rod and the outer top plate are sleeved;

[0017] Figure 3 For this utility model Figure 1 Schematic diagram of the plan view structure;

[0018] Figure 4For this utility model Figure 2 Schematic diagram of the plan view structure.

[0019] Description of reference numerals:

[0020] 1. Load-bearing plate; 2. Rotating part; 3. Screw rod; 4. Side fixing seat; 5. Guide rail; 6. Connecting frame; 7. Driving slide seat; 8. Extension plate; 9. Mounting seat; 10. Vertical pole; 11. Inner slide seat; 12. Inner clamping plate; 13. Inner belt; 14. Anti-skid pad; 15. Inner edge plate; 16. Inner mounting frame; 17. Inner clamping column; 18. Inner spring; 19. Middle clamping seat; 20. Side clamping seat; 21. Outer slide seat; 22. Outer top plate; 23. Outer belt; 24. Connecting rod; 25. Outer edge plate; 26. Outer mounting frame; 27. Outer clamping column; 28. Outer spring; 29. ​​Cross bar. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0022] The utility model provides Figure 1-Figure 4 The steel-plastic geogrid test fixture shown in the figure comprises a bearing plate 1 and a guide rail 5 arranged on the left side wall of the bearing plate 1. Two driving slides 7 are arranged at symmetrical positions on the right side wall of the bearing plate 1 so as to slide synchronously close to or away from each other. A vertical pole 10 that can slide along the guide rail 5 is detachably connected between the two side walls of the driving slide 7. The vertical pole 10 is rotatably sleeved with a connecting rod 24 that can slide longitudinally thereof. Two inner clamping plates 12 are slidably arranged on the part of the guide rail 5 located inside the two vertical poles 10, and an inner belt 13 that can slide and abut against the side edge of a single grid bar in the steel-plastic geogrid is rotatably arranged inside the side wall where the two inner clamping plates 12 are close to each other. The side wall where the two inner clamping plates 12 are far away from each other can be detachably sleeved with one end of the connecting rod 24. The part of the guide rail 5 located outside the two vertical poles 10 Two outer top plates 22 are slidably arranged, and an outer belt 23 which can slide and abut against the side edges of two grille bars separated by the steel-plastic geogrid is rotatably arranged inside one side wall of the two outer top plates 22 which are far away from each other, and a side wall of the two outer top plates 22 which are close to each other can be detachably sleeved with one end of a connecting rod 24, and a side wall of the two inner clamping plates 12 which are close to each other is connected with an inner edge abutment plate 15 which can abut against the end of the grille bar, and a side wall of the two outer top plates 22 which are far away from each other is connected with an outer edge abutment plate 25 which can abut against the end of the grille bar, the inner belt 13 is exposed from the inner clamping plate 12 and the outer belt 23 is exposed from the outer top plate 22, so that only the inner belt 13 or the outer belt 23 is in contact with the side edge of the grille bar, avoiding rigid contact between the inner clamping plate 12 and the outer top plate 22 and the side edge of the grille bar.

[0023] A middle clamping seat 19 is detachably connected to the center of the left side wall of the guide rail 5, and side clamping seats 20 are detachably connected to both sides of the left side wall of the guide rail 5. Cross bars 29 are connected between the two sides of the middle clamping seat 19 and the two side clamping seats 20. The inner clamping plate 12 and the outer top plate 22 on the same side are slidably sleeved on the cross bar 29 on the same side, and the part of the cross bar 29 located between the middle clamping seat 19 and the inner clamping plate 12 is sleeved with an inner spring 18, and the part of the cross bar 29 located between the side clamping seat 20 and the outer top plate 22 is sleeved with an outer spring 28. When the two inner clamping plates 12 slide towards each other or the two outer top plates 22 slide away from each other, the inner spring 18 and the outer spring 28 are respectively squeezed to avoid surface damage to the grille bars caused by excessive movement.

[0024] The two side walls of the driving slide 7 are connected to connecting frames 6, and the other ends of the two connecting frames 6 are commonly connected to an extension plate 8 that can slide along the guide rail 5. The end of the extension plate 8 away from the guide rail 5 is connected to a mounting seat 9, and the vertical rod 10 is detachably arranged in the mounting seat 9. The driving slide 7 moves laterally along the screw rod 3. During the process, the extension plate 8 synchronously slides laterally along the guide rail 5, thereby changing the position of the vertical rod 10 and the connecting rod 24, thereby changing the position of the inner clamping plate 12 or the outer top plate 22 through the connecting rod 24.

[0025] The outer peripheral side walls of the inner belt 13 and the outer peripheral side walls of the outer belt 23 are both detachably covered with anti-skid pads 14, which can further increase the contact friction between the inner belt 13 or the outer belt 23 and the side edges of the grille bars, thereby further preventing slipping.

[0026] The inner clamping plate 12 is connected to an inner slide seat 11 that can slide along the guide rail 5 at one end close to the bearing plate 1, and the inner mounting frame 16 is detachably mounted on one side wall of the two inner clamping plates 12 that are away from each other. The inner mounting frame 16 is installed with an inner clamping column 17. The end of the connecting rod 24 that is away from the vertical rod 10 is detachably connected to the inner clamping column 17. The outer top plate 22 is connected to an outer slide seat 21 that can slide along the guide rail 5 at one end close to the bearing plate 1, and the outer mounting frame 26 is detachably mounted on one side wall of the two outer top plates 22 that are close to each other. An outer clamping column 27 is installed in the outer mounting frame 26, and the end of the connecting rod 24 away from the vertical pole 10 is detachably connected to the outer clamping column 27. When it is necessary to switch the connecting rod 24 from being connected to the inner clamping plate 12 to being connected to the outer top plate 22, it is only necessary to lift the connecting rod 24 along the vertical pole 10 until the other end of the connecting rod 24 is separated from the inner clamping column 17, and then rotate the connecting rod 24 to a position concentric with the outer clamping column 27, and then put down the connecting rod 24 to complete the connection between the connecting rod 24 and the outer clamping column 27.

[0027] A rotating member 2 is detachably installed at the center of the right side wall of the supporting plate 1, and side fixing seats 4 are connected to both sides of the right side wall of the supporting plate 1. Screws 3 are detachably installed on the two rotating output ends of the rotating member 2, and the other end of the screw 3 is rotatably abutted with the side fixing seat 4 at the corresponding position, and the rotation directions of the two screws 3 are opposite. Two driving slides 7 are respectively threadedly sleeved on the corresponding screws 3, and the rotation of the inner belt 13 and the outer belt 23 is driven by respective rotating motors, which belongs to mature existing technologies and is therefore not drawn in the figure. In the process of clamping and fixing, the rotating member 2 is driven to rotate, thereby driving the screw 3 to rotate forward or reversely, so that the two driving slides 7 slide closer to or away from each other.

[0028] In the utility model, when it is necessary to clamp and fix a single grid bar of the steel-plastic geogrid, the connecting rod 24 is rotated to a state of being sleeved with the side wall of the inner clamping plate 12. At this time, the two driving slides 7 are driven to slide close to each other, so that the two vertical rods 10 and the two connecting rods 24 slide close to each other along the guide rail 5, that is, the two inner clamping plates 12 are driven to slide close to each other until they respectively abut against the two side edges of the grid bar, and then the inner belt 13 can be driven to rotate, so that the end of the single grid bar gradually moves close to the inner edge plate 15 through the rotation friction force of the inner belt 13 until it abuts against the inner edge plate 15. Finally, the two side walls of a single grille bar are clamped and fixed by two inner belts 13, and the ends of the grille bar are fixed by the inner edge abutment plates 15 to complete the clamping and fixing of the single grille bar; when it is necessary to clamp and fix two grille bars separated by a certain distance or the two farthest grille bars of the steel-plastic civil grating, the connecting rod 24 is rotated to a state of being sleeved with the side walls of the outer top plate 22. At this time, the two driving slides 7 are driven to slide away from each other, so that the two uprights 10 and the two connecting rods 24 slide away from each other, that is, the two outer top plates 22 are driven to slide away from each other until they are respectively connected to the two outer top plates 22 separated by a certain distance. The sides of two grating bars at a certain distance or the two farthest grating bars are abutted, and then the outer belt 23 can be driven to rotate, so that the ends of the two grating bars at a certain distance or the two farthest grating bars are gradually moved toward the outer edge abutment plate 25 by the rotational friction force of the outer belt 23 until they abut against the outer edge abutment plate 25, and finally the two outer belts 23 are clamped to clamp the sides of the two grating bars or the two farthest grating bars respectively, and the ends of the grating bars are abutted and fixed by the outer abutment plate 25, so that the two grating bars at a certain distance or the two farthest grating bars are clamped and fixed, regardless of whether they are Whether to fix a single grid bar or to clamp and fix two grid bars at a certain distance apart or the two farthest grid bars, it is only necessary to adjust the connecting component at the other end of the connecting rod 24, so as to facilitate adjustment according to different sizes of steel-plastic geogrids, and avoid the unstable clamping situation when only a single grid bar is clamped and fixed. At the same time, the movement of the grid bar to the inner edge plate 15 or the outer edge plate 25 is completed by the rotational friction of the inner belt 13 and the outer belt 23 respectively, which can effectively avoid slipping during rigid contact, further improve the clamping stability, and facilitate subsequent strength or tension testing.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A steel-plastic geogrid test fixture, characterized by: The invention comprises a bearing plate (1) and a guide rail (5) arranged on the left side wall of the bearing plate (1); two driving slides (7) are arranged at symmetrical positions on the right side wall of the bearing plate (1) so as to synchronously move closer or farther away from each other; a vertical rod (10) which can slide along the guide rail (5) is detachably connected between the two side walls of the driving slide (7); a connecting rod (24) which can slide along the longitudinal direction of the vertical rod (10) is rotatably sleeved on the vertical rod (10); two inner clamping plates (12) are slidably arranged on the part of the guide rail (5) located inside the two vertical rods (10); and an inner belt (13) which can slide against the side edge of a single grid bar in the steel-plastic geogrid is rotatably arranged inside the side wall where the two inner clamping plates (12) are close to each other; the two inner clamping plates (12) are rotatably arranged on the inside of the side wall where the two inner clamping plates (12) are close to each other; and the two inner clamping plates (12) are rotatably sleeved on the two side walls where the two inner clamping plates (12) are close to each other. The side walls away from each other can be detachably sleeved with one end of the connecting rod (24); the part of the guide rail (5) located outside the two uprights (10) is slidably provided with two outer top plates (22); the inner parts of the side walls away from each other of the two outer top plates (22) are rotatably provided with outer belts (23) that can slide and abut against the side edges of two grille bars separated by the steel-plastic geogrid; and the side walls of the two outer top plates (22) close to each other can be detachably sleeved with one end of the connecting rod (24); the side walls of the two inner clamping plates (12) close to each other are connected with inner side abutment plates (15) that can abut against the end of the grille bar; and the side walls of the two outer top plates (22) away from each other are connected with outer side abutment plates (25) that can abut against the end of the grille bar.

2. The steel-plastic geogrid test fixture according to claim 1, characterized in that: The center of the left side wall of the guide rail (5) is detachably connected to an intermediate clamping seat (19), and the two sides of the left side wall of the guide rail (5) are detachably connected to side clamping seats (20). Cross bars (29) are connected between the two sides of the intermediate clamping seat (19) and the two side clamping seats (20). The inner clamping plate (12) and the outer top plate (22) on the same side are slidably sleeved on the cross bar (29) on the same side, and the part of the cross bar (29) located between the intermediate clamping seat (19) and the inner clamping plate (12) is sleeved with an inner spring (18), and the part of the cross bar (29) located between the side clamping seat (20) and the outer top plate (22) is sleeved with an outer spring (28).

3. The steel-plastic geogrid test fixture according to claim 1, characterized in that: Both side walls of the driving slide (7) are connected to connecting frames (6); an extension plate (8) that can slide along the guide rail (5) is commonly connected between the other ends of the two connecting frames (6); an end of the extension plate (8) that is away from the guide rail (5) is connected to a mounting seat (9); and the vertical rod (10) is detachably arranged in the mounting seat (9).

4. The steel-plastic geogrid test fixture according to claim 1, characterized in that: The outer peripheral side wall of the inner belt (13) and the outer peripheral side wall of the outer belt (23) are both detachably provided with an anti-slip pad (14).

5. The steel-plastic geogrid test fixture according to claim 1, characterized in that: The inner clamping plate (12) is connected to an inner sliding seat (11) that can slide along the guide rail (5) at one end close to the bearing plate (1), and an inner mounting frame (16) is detachably mounted on one side wall of the two inner clamping plates (12) that are away from each other. An inner clamping column (17) is mounted inside the inner mounting frame (16). An end of the connecting rod (24) that is away from the vertical rod (10) is detachably sleeved with the inner clamping column (17). An end of the outer top plate (22) that is close to the bearing plate (1) is connected to an outer sliding seat (21) that can slide along the guide rail (5). The outer mounting frame (26) is detachably mounted on one side wall of the two outer top plates (22) that are close to each other. An outer clamping column (27) is mounted inside the outer mounting frame (26), and an end of the connecting rod (24) that is away from the vertical rod (10) is detachably sleeved with the outer clamping column (27).

6. The steel-plastic geogrid test fixture according to claim 1, characterized in that: A rotating member (2) is detachably mounted at the center of the right side wall of the carrier plate (1), and side fixing seats (4) are connected to both sides of the right side wall of the carrier plate (1). Screw rods (3) are detachably mounted on two rotating output ends of the rotating member (2), and the other end of the screw rod (3) is rotatably abutted against the side fixing seat (4) at a corresponding position, and the rotation directions of the two screw rods (3) are opposite, and the two driving slide seats (7) are respectively threadedly sleeved on the corresponding screw rods (3).

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