Geological and geotechnical investigation strength test device

Abstract

The invention discloses a geological geotechnical investigation strength test device, and relates to the technical field of geotechnical strength test.The technical scheme includes that the geological geotechnical investigation strength test device comprises a device base, a pressure applying mechanism is arranged on the upper portion of the device base, a first-stage moving plate and a second-stage moving plate are driven by the pressure applying mechanism to move downwards, and a protective cover is fixedly connected to the lower portion of the first-stage moving plate; a linkage rod is arranged in the device base, a collecting groove is formed in the device base, a sliding table is fixedly connected into the collecting groove, and a pressing groove is fixedly connected to the upper portion of the sliding table. The movable baffle moves to seal a gap between the bottom of the sliding table and the upper portion of the collecting tank, during a pressure test, splashed broken stones impact the protective cover, then fall onto the surface of the sliding table and finally roll onto the surface of the movable baffle, and the secondary moving plate is controlled to move upwards after the test is finished, so that the movable baffle is driven to move and reset to relieve sealing of the top of the collecting tank.

Description

Technical Field

[0001] This invention relates to the field of geotechnical strength testing technology, and in particular to a geological geotechnical exploration strength testing device. Background Technology

[0002] The geotechnical strength testing device is a core piece of equipment in the field of geotechnical engineering used to evaluate the mechanical properties of soil or rock masses. Its function is to accurately determine the compressive, shear, and tensile strength indicators of soil and rock materials by simulating actual working conditions. This device is typically equipped with high-precision sensors and an automated data acquisition system, enabling it to perform loading tests on soil and rock samples with different moisture contents, densities, or stress paths, recording stress-strain relationships and failure characteristics in real time. Its applications cover engineering scenarios such as foundation bearing capacity analysis, slope stability evaluation, and tunnel surrounding rock classification, providing key parameter support for geological disaster prevention and foundation design optimization. With its high repeatability, multi-parameter testing capabilities, and intelligent operation characteristics, this device has become an indispensable technical means in modern geotechnical engineering investigation, playing a vital role in ensuring the safety and economy of engineering construction.

[0003] In actual use, existing devices are prone to the splashing of gravel and dust during rock and soil pressure tests as the test pressure increases. The splashed gravel and dust may directly impact the operator's face, eyes, or skin, causing physical injury. Moreover, cleaning up the gravel and dust after the test is also quite troublesome. Therefore, a geological rock and soil exploration strength test device is proposed. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the tendency for soil and rock samples to fly up as the test pressure increases during soil and rock pressure tests. The flying debris and dust may directly impact the operator's face, eyes, or skin, causing physical injury. Furthermore, the cleanup of debris after the test is quite troublesome. Therefore, this invention proposes a geological and soil exploration strength testing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A geological and soil exploration strength testing device includes a base, a pressure applying mechanism on the upper part of the base, which drives a primary moving plate and a secondary moving plate to move downwards. A protective cover is fixedly connected to the lower part of the primary moving plate. A collection trough is provided inside the base, and a slide is fixedly connected inside the collection trough. A pressure groove is fixedly connected to the upper part of the slide. A linkage housing is fixedly connected inside the slide. A worm gear is rotatably connected inside the linkage housing. The worm gear meshes with a worm wheel. A first gear is fixedly connected to the worm wheel. The first gear meshes with a transmission rack. A threaded rod is fixedly connected to the worm gear. A transmission rod is threadedly connected to the threaded rod. A movable baffle is fixedly connected to the transmission rod.

[0006] During the test, the pressure mechanism first moves the primary moving plate, which simultaneously moves the protective cover to isolate the test position. Then, the secondary moving plate is pressed down to conduct the experiment. Simultaneously, the secondary moving plate moves the linkage rod, which in turn moves the transmission rack, causing the first gear to rotate. The rotation of the first gear drives the worm gear, which in turn moves the movable baffle, sealing the gap between the bottom of the slide and the collection trough. During the press, flying gravel impacts the protective cover and falls onto the slide surface, eventually rolling onto the movable baffle. After the test, the secondary moving plate moves back up, and the movable baffle resets, releasing the seal on the top of the collection trough, thus achieving automatic gravel collection. A force plate is installed inside the pressure trough, and a pressure sensor is placed between the force plate and the hydraulic device to monitor pressure changes in real time and transmit the data to the controller. A return spring or hydraulic rod can be fitted to the bottom of the transmission rack for resetting it. The protective cover is made of transparent material.

[0007] The above technical solution further includes: The linkage housing is fixedly connected to a sliding groove, and a transmission rack is slidably connected inside the sliding groove.

[0008] A transmission housing is fixedly connected to one side of the linkage housing. A transmission rod is slidably connected inside the transmission housing. A slide rail is provided inside the transmission housing, through which the transmission rod is slidably connected.

[0009] The bottom of the linkage rod is fixedly connected to a rod head, and the top of the transmission rack is fixedly connected to a connector. The rod head and the connector are positioned correspondingly, and both the rod head and the connector are made of rubber.

[0010] The pressure applying mechanism includes a mounting frame fixedly connected to the upper part of the device base. A primary hydraulic cylinder is fixedly connected to the upper part of the mounting frame. A primary moving plate is provided at the bottom of the primary hydraulic cylinder. A secondary hydraulic cylinder is fixedly connected to the bottom of the primary moving plate. A secondary moving plate is provided at the bottom of the secondary hydraulic cylinder. A pressure head is fixedly connected to the bottom of the secondary moving plate.

[0011] The upper part of the device base is fixedly connected to a limiting groove, and a buffer pad is provided inside the limiting groove.

[0012] A dust collection housing is fixedly connected to the top of the pressure groove, a filter plate is fixedly connected to one end of the dust collection housing, a swing housing is fixedly connected to the upper part of the filter plate, and a first motor is provided on the upper part of the swing housing.

[0013] The first motor output end is provided with a second gear, which is meshed with a gear groove. The gear groove is slidably connected to the swing housing. The second gear is provided with teeth only in part of its position. When the second gear rotates, it can drive the gear groove to move back and forth.

[0014] The gear slot is meshed with a third gear, the third gear is fixedly connected to a connecting rod, a second motor is provided at the bottom of the connecting rod, and a fan blade is provided at the output end of the second motor.

[0015] The present invention has the following beneficial effects: 1. In this invention, before the test begins, a primary hydraulic cylinder drives a primary moving plate to move, thereby causing the protective cover to press down and isolate the test area. Subsequently, a secondary hydraulic cylinder is activated to drive the secondary moving plate to move down, thereby causing the pressure head to apply pressure to the test sample. At the same time, the movement of the secondary moving plate also drives the linkage rod to move down, which in turn drives the transmission rack to move down. The movement of the transmission rack drives the worm gear to rotate, and the rotation of the worm gear drives the movable baffle to move. The movement of the movable baffle seals the gap between the bottom of the slide and the top of the collection tank. During the pressure test, the flying gravel hits the protective cover and falls onto the surface of the slide, finally rolling onto the surface of the movable baffle. After the test, the secondary moving plate is controlled to move up, thereby driving the movable baffle to move and reset, releasing the seal on the top of the collection tank, thus realizing the automatic collection of flying gravel.

[0016] 2. In this invention, the second motor can be started to drive the fan blades to rotate during the test. The rotation of the fan blades can absorb the dust generated during the test. The first motor can be started to drive the gear groove to move back and forth, which in turn drives the connecting rod to rotate back and forth, causing the fan blades to swing, thereby effectively increasing the dust collection range. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a geological and soil exploration strength testing device proposed in this invention; Figure 2 This is a schematic diagram of the internal structure of the protective cover in this invention; Figure 3 This is a schematic diagram of the internal structure of the limiting groove in this invention; Figure 4 This is a schematic diagram of the internal structure of the device base in this invention; Figure 5 This is a schematic diagram of the internal structure of the slide table in this invention; Figure 6 This is a schematic diagram of the internal structure of the linkage housing in this invention; Figure 7 This is a schematic diagram of the internal structure of the vacuum cleaner housing in this invention; Figure 8 This is a schematic diagram of the internal structure of the swing housing in this invention.

[0018] In the diagram: 1. Device base; 2. Mounting frame; 3. Protective cover; 4. Limiting groove; 5. First-stage hydraulic cylinder; 6. First-stage moving plate; 7. Second-stage hydraulic cylinder; 8. Second-stage moving plate; 9. Pressure head; 10. Linkage rod; 11. Rod head; 12. Buffer pad; 13. Dust collection housing; 14. Pressure groove; 15. Transmission rack; 16. Slide table; 17. Movable baffle; 18. Collection trough; 19. Linkage housing; 20. Connector; 21. Worm gear; 22. First gear; 23. Worm wheel; 24. Slide groove; 25. Threaded rod; 26. Transmission housing; 27. Transmission rod; 28. First motor; 29. ​​Swing housing; 30. Fan blade; 31. Second motor; 32. Filter plate; 33. Second gear; 34. Gear groove; 35. Third gear; 36. Connecting rod. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1 like Figures 1-8 As shown, a geological and soil exploration strength testing device includes a device base 1. A pressure applying mechanism is provided on the upper part of the device base 1, which drives a primary moving plate 6 and a secondary moving plate 8 to move downwards. A protective cover 3 is fixedly connected to the lower part of the primary moving plate 6. A collection trough 18 is provided inside the device base 1. A slide table 16 is fixedly connected inside the collection trough 18. A pressure groove 14 is fixedly connected to the upper part of the slide table 16. A linkage housing 19 is fixedly connected inside the slide table 16. A worm gear 21 is rotatably connected inside the linkage housing 19. A worm wheel 23 is meshed with the worm gear 21. A first gear 22 is fixedly connected to the worm wheel 23. A transmission rack 15 is meshed with the first gear 22. A threaded rod 25 is fixedly connected to the worm gear 21. A transmission rod 27 is threadedly connected to the threaded rod 25. A movable baffle 17 is fixedly connected to the transmission rod 27.

[0021] During the experiment, the pressure mechanism first moves the primary moving plate 6. As the primary moving plate 6 presses down, it simultaneously moves the protective cover 3, isolating the test position. Then, it moves the secondary moving plate 8 down to conduct the experiment. Simultaneously, the secondary moving plate 8 moves the linkage rod 10, which in turn moves the transmission rack 15 downwards, causing the first gear 22 to rotate. The rotation of the first gear 22 then drives the worm gear 21 to rotate, which in turn moves the movable baffle 17, sealing the bottom of the slide table 16 and the collection area. The gap in the groove 18 allows the flying gravel to impact the protective cover 3 and fall onto the surface of the slide table 16, eventually rolling onto the surface of the movable baffle 17. After the test, the secondary moving plate 8 moves upward and the movable baffle 17 moves back to reset, releasing the seal on the top of the collection groove 18, thus achieving automatic cleaning and collection of gravel. A force plate is installed inside the pressure groove 14, and a pressure sensor is installed between the force plate and the hydraulic device to monitor pressure changes in real time and transmit them to the controller. A reset spring or hydraulic rod can be installed at the bottom of the transmission rack 15 to reset the transmission rack 15. The protective cover 3 is made of transparent material.

[0022] The linkage housing 19 has a fixedly connected slide groove 24 inside, and a transmission rack 15 is slidably connected inside the slide groove 24. A transmission housing 26 is fixedly connected to one side of the linkage housing 19, and a transmission rod 27 is slidably connected inside the transmission housing 26. A slide rail is provided inside the transmission housing 26, through which the transmission rod 27 is slidably connected. A rod head 11 is fixedly connected to the bottom of the linkage rod 10, and a connector 20 is fixedly connected to the top of the transmission rack 15. The rod head 11 and the connector 20 are positioned correspondingly. The rod head 11 and the connector 20 are both made of rubber. The pressure mechanism includes a mounting bracket 2 fixedly connected to the upper part of the device base 1. A first-stage hydraulic cylinder 5 is fixedly connected to the upper part of the mounting bracket 2. A first-stage moving plate 6 is provided at the bottom of the first-stage hydraulic cylinder 5. A second-stage hydraulic cylinder 7 is fixedly connected to the bottom of the first-stage moving plate 6. A second-stage moving plate 8 is provided at the bottom of the second-stage moving plate 7. A pressure head 9 is fixedly connected to the bottom of the second-stage moving plate 8. A limit groove 4 is fixedly connected to the upper part of the device base 1, and a buffer pad 12 is provided inside the limit groove 4.

[0023] In this embodiment, before the test begins, the first-stage hydraulic cylinder 5 drives the first-stage moving plate 6 to move. The movement of the first-stage moving plate 6 causes the fixedly connected protective cover 3 to press down. After the protective cover 3 moves down, its bottom inserts into the limiting groove 4 to isolate the test area. The limiting groove 4 is equipped with a buffer pad 12 to cushion the protective cover 3. Then, the second-stage hydraulic cylinder 7 is activated to drive the second-stage moving plate 8 to move down, which in turn drives the pressure head 9 to apply pressure to the test sample placed inside the pressure groove 14. At the same time, the movement of the second-stage moving plate 8 can also drive the linkage rods 10 fixedly connected on both sides to move down. The downward movement of the linkage rods 10 can drive the transmission rack 15 to move down. The movement of the transmission rack 15 can drive the meshing first gear 22 to rotate. The rotation of the first gear 22 can drive the fixedly connected worm gear 23 to rotate. The rotation of the worm gear 23 drives the meshing worm 21 to rotate, which in turn drives the fixed threaded rod 25 to rotate. The rotation of the threaded rod 25 drives the meshing transmission rod 27 to move. The movement of the transmission rod 27 drives the fixed movable baffle 17 to move, thereby sealing the gap between the bottom of the slide table 16 and the top of the collection tank 18. During the pressure test, the flying gravel hits the protective cover 3 and falls into the surface of the slide table 16. Since the slide table 16 has a conical structure, the gravel gradually slides down and finally rolls onto the surface of the movable baffle 17. When the pressure head 9 is moved up and retracted after the test, the movable baffle 17 can be moved to reset, thereby releasing the seal on the top of the collection tank 18 and allowing the gravel on the surface of the movable baffle 17 to fall into the collection tank 18, thus realizing the automatic collection of flying gravel.

[0024] Example 2 like Figures 1-8 As shown, a dust collection housing 13 is fixedly connected to the top of the pressure groove 14. A filter plate 32 is fixedly connected to one end of the dust collection housing 13. A swing housing 29 is fixedly connected to the upper part of the filter plate 32. A first motor 28 is provided on the upper part of the swing housing 29. A second gear 33 is provided at the output end of the first motor 28. The second gear 33 is meshed with a gear groove 34. The gear groove 34 is slidably connected to the swing housing 29. The second gear 33 has teeth only in some positions. When the second gear 33 rotates, it can drive the gear groove 34 to move back and forth. A third gear 35 is meshed with the gear groove 34. A connecting rod 36 is fixedly connected to the third gear 35. A second motor 31 is provided at the bottom of the connecting rod 36. A fan blade 30 is provided at the output end of the second motor 31.

[0025] In this embodiment, the test process is carried out by starting the second motor 31 to drive the fan blade 30 to rotate. The rotation of the fan blade 30 can absorb the dust generated during the test. During the dust absorption process, starting the first motor 28 can drive the second gear 33 to rotate. The rotation of the second gear 33 can drive the meshing gear groove 34 to move back and forth. The reciprocating movement of the gear groove 34 can drive the meshing third gear 35 to rotate back and forth. The rotation of the third gear 35 can drive the fixedly connected connecting rod 36 to rotate back and forth. The rotation of the connecting rod 36 can make the fan blade 30 swing, thereby effectively increasing the dust collection range.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A geological and soil exploration strength testing device, comprising a device base (1), characterized in that, The device base (1) is provided with a pressure mechanism on the upper part, which drives the first-stage moving plate (6) and the second-stage moving plate (8) to move downward. The lower part of the first-stage moving plate (6) is fixedly connected to a protective cover (3). The device base (1) is provided with a collection groove (18). The collection groove (18) is fixedly connected to a slide (16). The upper part of the slide (16) is fixedly connected to a pressure groove (14). The slide (16) is fixedly connected to a linkage housing (19). The linkage housing (19) is rotatably connected to a worm (21). The worm (21) is meshed with a worm wheel (23). The worm wheel (23) is fixedly connected to a first gear (22). The first gear (22) is meshed with a transmission rack (15). The worm (21) is fixedly connected to a threaded rod (25). The threaded rod (25) is threadedly connected to a transmission rod (27). The transmission rod (27) is fixedly connected to a movable baffle (17). During the test, the first-level moving plate (6) is moved by the pressure mechanism. When the first-level moving plate (6) is pressed down, the protective cover (3) is moved to isolate the test position. Then, the second-level moving plate (8) is pressed down to conduct the test. When the second-level moving plate (8) is pressed down, the linkage rod (10) is moved. The linkage rod (10) moves and drives the transmission rack (15) to move down, thereby driving the first gear (22) to rotate. The rotation of the first gear (22) drives the worm (21) to rotate. The rotation of the worm (21) drives the movable baffle (17) to move, thereby sealing the gap between the bottom of the slide (16) and the collection tank (18). When the pressure is applied, the flying gravel hits the protective cover (3) and falls into the surface of the slide (16). Finally, it rolls off the surface of the movable baffle (17). After the test, the second-level moving plate (8) moves up and the movable baffle (17) moves back to release the seal on the top of the collection tank (18), thereby realizing the automatic cleaning and collection of gravel.

2. The geological and soil exploration strength testing device according to claim 1, characterized in that, The linkage housing (19) is fixedly connected to a slide groove (24), and a transmission rack (15) is slidably connected inside the slide groove (24).

3. The geological and soil exploration strength testing device according to claim 1, characterized in that, A transmission housing (26) is fixedly connected to one side of the linkage housing (19), and a transmission rod (27) is slidably connected inside the transmission housing (26).

4. The geological and soil exploration strength testing device according to claim 1, characterized in that, The bottom of the linkage rod (10) is fixedly connected to the rod head (11), and the top of the transmission rack (15) is fixedly connected to the connector (20).

5. The geological and soil exploration strength testing device according to claim 1, characterized in that, The pressure application mechanism includes a mounting frame (2) fixedly connected to the upper part of the device base (1). A first-stage hydraulic cylinder (5) is fixedly connected to the upper part of the mounting frame (2). A first-stage moving plate (6) is provided at the bottom of the first-stage hydraulic cylinder (5). A second-stage hydraulic cylinder (7) is fixedly connected to the bottom of the first-stage moving plate (6). A second-stage moving plate (8) is provided at the bottom of the second-stage hydraulic cylinder (7). A pressure head (9) is fixedly connected to the bottom of the second-stage moving plate (8).

6. The geological and soil exploration strength testing device according to claim 4, characterized in that, The upper part of the device base (1) is fixedly connected to a limiting groove (4), and a buffer pad (12) is provided inside the limiting groove (4).

7. The geological and soil exploration strength testing device according to claim 1, characterized in that, The top of the pressure groove (14) is fixedly connected to a dust collection housing (13), one end of the dust collection housing (13) is fixedly connected to a filter plate (32), the upper part of the filter plate (32) is fixedly connected to a swing housing (29), and the upper part of the swing housing (29) is provided with a first motor (28).

8. The geological and soil exploration strength testing device according to claim 7, characterized in that, The first motor (28) has a second gear (33) at its output end. The second gear (33) is meshed with a gear groove (34), and the gear groove (34) is slidably connected to the swing housing (29).

9. The geological and soil exploration strength testing device according to claim 8, characterized in that, The gear slot (34) is meshed with a third gear (35), the third gear (35) is fixedly connected to a connecting rod (36), a second motor (31) is provided at the bottom of the connecting rod (36), and a fan blade (30) is provided at the output end of the second motor (31).

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