Novel geosynthetic material test fixture
By introducing adjustment devices and fixed columns into geosynthetic material test fixtures, the problem of difficult control of clamping force of traditional fixtures is solved, the fixing efficiency and stability of the test are improved, and more efficient geogrid clamping is achieved.
Patent Information
- Application Number
- CN202420351234.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-02-26
AI Technical Summary
Traditional geosynthetic material test fixtures adopt manual clamping, and the clamping force is difficult to control, which can easily cause the sample to slip or deform, and the operation is cumbersome.
A new type of geosynthetic material test fixture was designed, and the adjustment device was used to mesh the gears and racks to achieve clamping elastic adjustment, and four sets of fixed columns were set on the movable plate to enhance the fixture's fixture.
It effectively improves the fixing efficiency and testing efficiency of the test fixture, ensures that the geogrid has the appropriate clamping force, enhances the stability of the fixture, and avoids slipping or deformation of the test sample.
Smart Images
Figure CN222200220U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of geosynthetics performance testing devices, in particular to a novel geosynthetics testing fixture. Background Art
[0002] Geosynthetics is a general term for various products made of synthetic materials used in geotechnical engineering and civil engineering construction. As a civil engineering material, it is made of artificially synthesized polymers such as plastics, chemical fibers, synthetic rubber, etc., and is made into various types of products, which are placed inside, on the surface, or between various soil bodies to strengthen or protect the soil. The geosynthetics test fixture is a device specially used to test geosynthetics. This fixture can simulate the stress conditions of geosynthetics in actual engineering so as to test and analyze their performance. In geosynthetics testing, the main function of the fixture is to fix and constrain the specimen to simulate the boundary conditions in actual engineering. By applying different forces or displacements to the specimen by the fixture, various indicators such as the strength, stiffness, and fatigue performance of geosynthetics can be tested.
[0003] However, traditional geosynthetics test fixtures usually use manual clamping for geogrids, which is not only cumbersome to operate, but also difficult to control the clamping force, which can easily cause the geogrid specimen to slip or deform. For this reason, we propose a new geosynthetics test fixture. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] In view of the deficiencies in the prior art, the utility model provides a novel geosynthetics test fixture to solve the above-mentioned problems.
[0006] (II) Technical solution
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of geosynthetics test fixture, including a geogrid, wherein two groups of support plates are movably connected to the bottom of the geogrid, two groups of fixed plates are welded to one end of the two groups of support plates, and the two groups of fixed plates are movably connected to the geogrid on one side close to the geogrid, one group of fixed plates is fixedly connected to a baffle on the top side close to the geogrid, the inner side of the baffle is movably connected to the outer side of the geogrid, one end of the geogrid is movably connected to a group of movable plates on the side away from the fixed plate, and the other end of the geogrid is movably connected to four groups of fixed columns on the side away from the fixed plate, one end of the four groups of fixed columns is fixedly connected to another group of movable plates, and adjustment devices are provided on the outer sides of the two groups of movable plates.
[0008] Preferably, two groups of connection blocks are fixedly connected to the outer sides of the two groups of movable plates, two groups of sliding blocks are fixedly connected to the outer sides of the two groups of connection blocks, and two groups of sliding grooves are provided at the bottoms of the two groups of sliding blocks.
[0009] Preferably, the inner walls of the two groups of slide grooves are movably connected with two groups of auxiliary blocks, and the bottoms of the two groups of auxiliary blocks are welded to the tops of the two groups of support plates.
[0010] Preferably, the adjusting device includes an auxiliary rod, a connecting rod, a first limit column, a spring, a second limit column and a movable shaft. The outer top of the two groups of sliding blocks are sleeved with two groups of movable shafts through connecting columns. The tops of the two groups of movable shafts are fixedly connected with two groups of connecting rods. The outer sides of the tops of the two groups of connecting rods are fixedly connected with two groups of auxiliary rods. The outer sides of the two groups of auxiliary rods are fixedly connected with two groups of first limit columns. The outer sides of the two groups of first limit columns are fixedly connected with two groups of springs. The bottoms of the two groups of springs are fixedly connected with two groups of second limit columns. One end of the two groups of second limit columns are movably connected to the two groups of sliding blocks through connecting columns.
[0011] Preferably, the bottom of the two groups of movable shafts are fixedly connected with three groups of latch teeth, the bottom of the three groups of latch teeth are movably connected with two groups of gears, one end of the two groups of gears are movably connected with the two groups of sliders through connecting columns, and the outer ends of the two groups of gears and the two groups of movable shafts are fixedly connected with two groups of positioning columns.
[0012] Preferably, the bottoms of the two groups of gears are movably connected with two groups of racks, the tops of the two groups of racks are meshed with the two groups of movable plates, and the bottoms of the two groups of racks are welded with the tops of the two groups of support plates.
[0013] (III) Beneficial effects
[0014] Compared with the prior art, the utility model provides a new geosynthetics test fixture, which has the following beneficial effects:
[0015] 1. The new geosynthetics test fixture is equipped with an adjustment device, which can adjust the clamping tightness of the fixture through the mutual engagement of the gear and the rack, avoiding the traditional geosynthetics test fixture usually using manual clamping method, the clamping force is often difficult to control, and it is easy to cause the sample to slip or the fixture to deform. The geosynthetics geogrid can be effectively clamped with appropriate force, greatly improving the fixing efficiency and testing efficiency of the test fixture.
[0016] 2. This new geosynthetics test fixture has four sets of fixed columns on one set of movable plates, which can make the geogrid more firmly fixed during the test work, greatly improving the stability of the test fixture clamping. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 It is an enlarged schematic diagram of the regulating device of the utility model;
[0019] Figure 3 It is a side schematic diagram of the adjustment device of the utility model;
[0020] Figure 4 It is a partially enlarged schematic diagram of the regulating device of the utility model.
[0021] In the figure: 1. geogrid; 2. support plate; 3. rack; 4. auxiliary block; 5. fixed plate; 6. baffle; 7. movable plate; 8. fixed column; 9. connecting block; 10. slider; 11. auxiliary rod; 12. connecting rod; 13. first limiting column; 14. spring; 15. second limiting column; 16. movable shaft; 17. gear; 18. positioning column; 19. slide groove; 20. latching tooth. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] See also Figure 1-4 A novel geosynthetics test fixture comprises a geogrid 1, two groups of support plates 2 are movably connected at the bottom of the geogrid 1, two groups of fixing plates 5 are welded at one end of the two groups of support plates 2, the two groups of fixing plates 5 are movably connected to the geogrid 1 on one side close to the geogrid 1, a baffle 6 is fixedly connected to the top of one group of fixing plates 5 on one side close to the geogrid 1, the inner side of the baffle 6 is movably connected to the outer side of the geogrid 1, and a group of movable plates 7 are movably connected to one end of the side of the geogrid 1 away from the fixing plate 5 The other end of the geogrid 1 away from the fixed plate 5 is movably connected with four groups of fixed columns 8, one end of the four groups of fixed columns 8 is fixedly connected with another group of movable plates 7, and adjustment devices are provided on the outsides of the two groups of movable plates 7. When conducting the test work, the geosynthetics geogrid 1 is placed between the two groups of fixed plates 5 and the two groups of movable plates 7, and the geogrid 1 is pushed until the outside of the geogrid 1 contacts the baffle 6 and stops, and then the position of the geogrid is adjusted so that the mesh holes on the geogrid 1 correspond to the four groups of fixed columns 8.
[0024] Furthermore, two groups of connecting blocks 9 are fixedly connected to the outer sides of the two groups of movable plates 7, and two groups of sliding blocks 10 are fixedly connected to the outer sides of the two groups of connecting blocks 9. Two groups of sliding grooves 19 are provided at the bottom of the two groups of sliding blocks 10. The movement of the sliding blocks 10 is due to the sliding grooves 19 provided at the bottom of the sliding blocks 10. The sliding grooves 19 are clamped together with the auxiliary blocks 4. The sliding blocks 10 slide on the auxiliary blocks 4, thereby driving the connecting blocks 9 to move.
[0025] Furthermore, the inner walls of the two groups of slide grooves 19 are movably connected with two groups of auxiliary blocks 4 , and the bottoms of the two groups of auxiliary blocks 4 are welded to the tops of the two groups of support plates 2 .
[0026] Furthermore, the adjusting device includes an auxiliary rod 11, a connecting rod 12, a first limiting column 13, a spring 14, a second limiting column 15 and a movable shaft 16. The outer tops of the two groups of sliders 10 are sleeved with two groups of movable shafts 16 through connecting columns. The tops of the two groups of movable shafts 16 are fixedly connected to the two groups of connecting rods 12. The tops of the two groups of connecting rods 12 are fixedly connected to the outer sides of the two groups of auxiliary rods 11. The outer sides of the two groups of auxiliary rods 11 are fixedly connected to the two groups of first limiting columns 13. The outer sides of the two groups of first limiting columns 13 are fixedly connected to the two groups of springs 14. The bottoms of the two groups of springs 14 are fixedly connected to the There are two groups of second limit columns 15 fixedly connected, one end of the two groups of second limit columns 15 are movably connected with the two groups of sliders 10 through connecting columns, and then the auxiliary rod 11 is manually pushed upward to drive the connecting rod 12 to move upward. When the auxiliary rod 11 and the connecting rod 12 move upward, the first limit column 13 also moves with it. The force generated by the first limit column 13 pulls up the spring 14, and the spring 14 stretches. The function of the second limit column 15 is to fix the other end of the spring 14. At the same time, the connecting rod 12 moves upward to drive the movable shaft 16 to rotate.
[0027] Furthermore, three groups of latch teeth 20 are fixedly connected to the bottom of the two groups of movable shafts 16, and two groups of gears 17 are movably latched at the bottom of the three groups of latch teeth 20. One end of the two groups of gears 17 is movably connected to the two groups of sliders 10 through a connecting column. The two groups of gears 17 and the outer ends of the two groups of movable shafts 16 are fixedly connected with two groups of positioning columns 18. The rotation of the movable shaft 16 drives the three groups of latch teeth 20 at the bottom of the movable shaft 16 to move. When the three groups of latch teeth 20 move away from the outside of the gear 17, the auxiliary rod 11 is pushed to make the gear 17 engage and move forward on the rack 3. The function of the positioning column 18 is to fix the gear 17 and the movable shaft 16. The gear 17 is connected to the slider 10 through the connecting column, thereby driving the slider 10 to move forward.
[0028] Furthermore, the bottom of the two groups of gears 17 are movably connected to two groups of racks 3, the tops of the two groups of racks 3 are meshed with the two groups of movable plates 7, the bottoms of the two groups of racks 3 are welded to the tops of the two groups of support plates 2, and the auxiliary rod 11 is pushed to make the gear 17 mesh and move forward on the rack 3.
[0029] Working principle:
[0030] When conducting the test work, the geosynthetics geogrid 1 is placed on the movable plate between the two groups of fixed plates 5 and the two groups 7, and the geogrid 1 is pushed until the outer side of the geogrid 1 contacts the baffle 6 and stops, and then the position of the geogrid is adjusted so that the mesh holes on the geogrid 1 correspond to the four groups of fixed columns 8; then the auxiliary rod 11 is manually moved upward to drive the connecting rod 12 to move upward. When the auxiliary rod 11 and the connecting rod 12 move upward, the first limit column 13 also moves with it. The force generated by the first limit column 13 pulls up the spring 14, and the spring 14 stretches. The function of the second limit column 15 is to fix the other end of the spring 14. At the same time, the connecting rod 12 The rod 12 moves upward and drives the movable shaft 16 to rotate; the rotating movement of the movable shaft 16 drives the three groups of latch teeth 20 at the bottom of the movable shaft 16 to move. When the three groups of latch teeth 20 move away from the outside of the gear 17, the auxiliary rod 11 is pushed to make the gear 17 mesh with the rack 3 and move forward. The function of the positioning column 18 is to fix the gear 17 and the movable shaft 16. The gear 17 is connected to the slider 10 through the connecting column, thereby driving the slider 10 to move forward; the movement of the slider 10 is because the bottom of the slider 10 is provided with a slide groove 19, which is engaged with the auxiliary block 4. The slider 10 slides on the auxiliary block 4, thereby driving the connecting block 9 to move;
[0031] The slider 10 moves forward and drives the connecting block 9 to move forward. The connecting block 9 pushes the movable plate 7 forward, drives the fixed column 8 to move forward and flexibly connect with the geogrid 1. The fixed column 8 is plugged together with the mesh on the geogrid 1. At the appropriate clamping force position, loosen the auxiliary rod 11, so that the three sets of teeth 20 on the movable shaft 16 are engaged with the gear 17, stop moving, and complete the clamping work. When the clamping force of one side of the geogrid is adjusted, clamp the other end of the geogrid in the same way, and finally check whether the clamping force of the geogrid 1 is appropriate. If not, bend the auxiliary rod 11 to adjust it again.
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A novel geosynthetics test fixture, comprising a geogrid (1), characterized in that: The bottom of the geogrid (1) is movably connected to two groups of support plates (2), one end of the two groups of support plates (2) is welded to two groups of fixed plates (5), the two groups of fixed plates (5) are movably connected to the geogrid (1) on one side close to the geogrid (1), a baffle (6) is fixedly connected to the top of one group of fixed plates (5) on one side close to the geogrid (1), the inner side of the baffle (6) is movably connected to the outer side of the geogrid (1), one end of the side of the geogrid (1) away from the fixed plate (5) is movably connected to a group of movable plates (7), the other end of the side of the geogrid (1) away from the fixed plate (5) is movably connected to four groups of fixed columns (8), one end of the four groups of fixed columns (8) is fixedly connected to another group of movable plates (7), and the outer sides of the two groups of movable plates (7) are both provided with adjustment devices.
2. A novel geosynthetics test fixture according to claim 1, characterized in that: Two groups of connection blocks (9) are fixedly connected to the outer sides of the two groups of movable plates (7), two groups of sliding blocks (10) are fixedly connected to the outer sides of the two groups of connection blocks (9), and two groups of sliding grooves (19) are provided at the bottoms of the two groups of sliding blocks (10).
3. A novel geosynthetics test fixture according to claim 2, characterized in that: The inner walls of the two groups of slide grooves (19) are movably connected to two groups of auxiliary blocks (4), and the bottoms of the two groups of auxiliary blocks (4) are welded to the tops of the two groups of support plates (2).
4. A novel geosynthetics test fixture according to claim 2, characterized in that: The adjusting device comprises an auxiliary rod (11), a connecting rod (12), a first limiting column (13), a spring (14), a second limiting column (15) and a movable shaft (16); the outer tops of the two groups of sliders (10) are sleeved with two groups of movable shafts (16) via connecting columns; the tops of the two groups of movable shafts (16) are fixedly connected to the two groups of connecting rods (12); the outer sides of the tops of the two groups of connecting rods (12) are fixedly connected to the two groups of auxiliary rods (11); the outer sides of the two groups of auxiliary rods (11) are fixedly connected to the two groups of first limiting columns (13); the outer sides of the two groups of first limiting columns (13) are fixedly connected to the two groups of springs (14); the bottoms of the two groups of springs (14) are fixedly connected to the two groups of second limiting columns (15); one ends of the two groups of second limiting columns (15) are movably connected to the two groups of sliders (10) via connecting columns.
5. A novel geosynthetics test fixture according to claim 4, characterized in that: The bottoms of the two groups of movable shafts (16) are fixedly connected with three groups of latching teeth (20), and the bottoms of the three groups of latching teeth (20) are movably latched with two groups of gears (17). One end of the two groups of gears (17) is movably connected to the two groups of sliders (10) through a connecting column, and the outer ends of the two groups of gears (17) and the two groups of movable shafts (16) are fixedly connected with two groups of positioning columns (18).
6. The novel geosynthetics test fixture according to claim 5 is characterized by: The bottoms of the two groups of gears (17) are movably connected to two groups of racks (3), the tops of the two groups of racks (3) are meshed with the two groups of movable plates (7), and the bottoms of the two groups of racks (3) are welded to the tops of the two groups of support plates (2).