Rock-soil compression resistance detection test device

Abstract

The utility model relates to the technical field of geotechnical engineering, and discloses a rock-soil compression resistance detection test device which comprises a first supporting frame, a rotating disc is rotatably connected to the periphery of the outer wall of the first supporting frame, a first supporting leg is rotatably connected to one side of the outer wall of the rotating disc, and a second supporting leg is slidably connected to one side of the outer wall of the first supporting leg. A plurality of sliding grooves are formed in the periphery of the outer wall of the first supporting leg, a hydraulic push rod is fixedly connected to the top of the outer wall of the supporting plate, the output end of the hydraulic push rod is fixedly connected with a data acquisition instrument, and a plurality of adjusting mechanisms are fixedly connected to the periphery of the outer wall of the first supporting frame and used for supporting a detection device. In the utility model, the support frame I serves as a device foundation and provides main support, the turntable is connected with the outer wall of the support frame, so that the angle of the support leg I can be flexibly adjusted, the adjusting frame is connected with the motor, the position and angle of the support plate can be adjusted, and the data acquisition instrument is pushed to apply pressure to a rock-soil sample and record pressure and deformation data during starting.

Description

Technical Field

[0001] This utility model relates to the field of geotechnical engineering technology, and in particular to a testing device for testing the compressive strength of soil and rock. Background Technology

[0002] The compressive strength test of soil and rock is a professional test used to determine the mechanical properties of soil and rock materials under pressure. Soil and rock include rocks and soil in the earth's crust and can be divided into five categories: hard rock, medium hard rock, weakly bound soil, loose unbound soil, and special soil and rock. The first two categories are usually called rocks, and the latter three are called soil. They are collectively referred to as soil and rock. When existing hard soil and rock are used as engineering raw materials, they need to be subjected to compressive strength tests to check whether they can reach the corresponding compressive strength. Therefore, compressive strength testing equipment is required.

[0003] A search revealed Chinese Patent Publication No. CN210487488U, which discloses a three-dimensional compressive strength testing device for soil and rock. This device features a spliced ​​connection and a three-dimensional airbag inflation pressure structure for detecting multi-dimensional compressive stress in soil and rock. It can simultaneously apply multi-dimensional pressure to soil and rock, simulating multi-dimensional pressure testing and improving the accuracy of the test results. The device is characterized by four foot pads at the bottom corners of the lower frame, and open structures on the upper, left, and right sides of the lower frame, as well as open structures on the front, rear, and lower sides of the upper frame. The upper and lower frames are assembled to form the main frame. The main frame is connected by multiple pins at its assembly position. Six fixing frames are placed on the six outer surfaces of the main frame. The center of each fixing frame is a pressure ring. A liner is placed between the fixing frame and the main frame. The airbag frame is placed on one side of the liner and is located inside the main frame. However, in existing soil and rock compressive strength testing devices, soil and rock compressive strength testing focuses on applying pressure in one direction to the soil and rock sample. Currently, it can only measure the mechanical properties of soil and rock under unidirectional compression. However, in actual engineering, soil and rock are subjected to multi-directional stress. Conventional testing devices cannot simulate complex stresses, which limits research capabilities and makes it difficult for test results to accurately reflect the true mechanical behavior of soil and rock, affecting the accuracy of engineering design and construction. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a soil and rock compressive strength testing device, which aims to improve the problem that the existing soil and rock compressive strength testing work focuses on applying pressure in a single direction to the soil and rock sample, and the testing device cannot simulate complex stress, thus affecting the accuracy of engineering design and construction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a soil and rock compressive strength testing device, comprising a support frame, a turntable rotatably connected to the outer wall of the support frame, a support leg rotatably connected to one side of the outer wall of the turntable, a support leg slidably connected to one side of the outer wall of the support leg, multiple sliding grooves formed around the outer wall of the support leg, a motor slidably connected to one side of the outer wall of the support leg slidably, a pulley fixedly connected to the output end of the motor, the pulley slidably connected to the middle of the inner wall of the sliding groove, an adjusting frame rotatably connected to the left and right sides of the outer wall of the motor, a support plate rotatably connected to the bottom adjacent side of the adjusting frame, a hydraulic push rod fixedly connected to the top of the outer wall of the support plate, a data acquisition instrument fixedly connected to the output end of the hydraulic push rod, and multiple adjusting mechanisms fixedly connected around the outer wall of the support frame, the adjusting mechanisms being used to support the testing device.

[0006] The above technical solution involves: support frame one serving as the foundation, providing primary support; a turntable connected to the outer wall of the support frame, allowing support leg one to be angled; support leg two to adjust the height and horizontal position of the device, ensuring stability; a motor on support leg two driving pulleys to move for precise adjustment; an adjustment frame connected to the motor, allowing adjustment of the support plate's position and angle; a hydraulic push rod applying pressure, pushing the data acquisition instrument to pressurize the soil and rock sample, recording data, and analyzing the soil and rock compressive strength; and multiple adjustment mechanisms fixedly connected to the outer wall of support frame one to support the testing device.

[0007] As a further description of the above technical solution:

[0008] The adjustment mechanism includes a movable block, which is fixedly connected to the bottom of the outer wall of the first support frame. A connecting plate is slidably connected to the bottom of the outer wall of the movable block. A second support frame is fixedly connected to one side of the outer wall of the connecting plate. An adjustment rod is rotatably connected to the top of the outer wall of the second support frame. An adjustment block is rotatably connected to the middle of the outer wall of the adjustment rod. A support rod is rotatably connected to the other end of the adjustment block. The support rod is slidably connected to the bottom of the inner wall of the second support frame.

[0009] Through the above technical solution: the movable block and the sliding connection allow the second support frame to move relative to the first support frame, providing flexible adjustment for the device. The second support frame serves as the main support, connecting the adjustment components to ensure system stability. The adjustment rod is rotatably connected to the top of the second support frame, controlling the position of the adjustment block. The adjustment block is connected to the adjustment rod and the support rod. The rotation of the adjustment rod drives the adjustment block and the support rod to move, achieving precise adjustment of the length and position of the support rod. The adjustment rod can adjust the support angle and height of the device to adapt to different geotechnical testing scenarios, such as maintaining the device level or adjusting the posture of the testing equipment, ensuring smooth testing operations.

[0010] As a further description of the above technical solution:

[0011] Anti-slip sleeves are fixedly connected to the top of the outer wall of each of the multiple adjusting rods, and foot pads are fixedly connected to the bottom of the outer wall of each of the multiple support rods.

[0012] The above technical solution involves connecting an anti-slip sleeve to the top of the adjusting rod to improve ease of operation and safety, and connecting a foot pad to the bottom of the support rod to increase the contact area with the ground and improve stability.

[0013] As a further description of the above technical solution:

[0014] Multiple fixing blocks are fixedly connected to the top of the outer wall of the support plate, and connection holes are opened around the outer wall of the fixing blocks.

[0015] Through the above technical solution, the fixing block on the top of the support plate is connected to other components through connecting holes, so as to achieve stable assembly of the device and adapt to the test device structure.

[0016] As a further description of the above technical solution:

[0017] A connecting plate two is slidably connected to one side of the outer wall of the pulley, and an auxiliary wheel is rotatably connected to the middle of the outer wall of the connecting plate two.

[0018] The above technical solution involves a pulley that drives the connecting plate to move within the groove of the support leg, while the auxiliary wheel provides support and guidance during movement, reducing resistance, ensuring smooth movement, and improving the smoothness and stability of the device's adjustment and operation.

[0019] As a further description of the above technical solution:

[0020] A movable plate is fixedly connected to the front side of the outer wall of each of the motors, and a movable frame is fixedly connected to the front side of the outer wall of the movable plate.

[0021] The above technical solution involves a motor that connects to a moving plate and drives a moving frame, thereby adjusting the device's position and providing power and stability.

[0022] As a further description of the above technical solution:

[0023] A fixing frame is fixedly connected to the front side of the outer wall of the turntable, and a fixing hole is opened on the front side of the outer wall of the fixing frame.

[0024] The above technical solution involves a fixing hole on the front side of the turntable for connecting with components or external structures to ensure coordinated operation of the device.

[0025] As a further description of the above technical solution:

[0026] A gasket is fixedly connected to the top of the outer wall of the data acquisition instrument, and a bolt is threadedly connected to the top of the outer wall of the gasket.

[0027] Through the above technical solution, the gasket on the top of the data acquisition instrument, by increasing the contact area with the bolts and the threaded connection, ensures its stable installation, prevents vibration and displacement during the test from affecting the accuracy of the data, and ensures the stable operation of the equipment.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, support frame one serves as the foundation of the device, providing the main support. The turntable is connected to the outer wall of the support frame, allowing support leg one to flexibly adjust its angle. Support leg two can slide to adjust the height and horizontal position of the device. The motor is installed on support leg two, driving the pulley to move in the slide groove. The adjusting frame is connected to the motor, allowing adjustment of the position and angle of the support plate. The hydraulic push rod is a key component for applying pressure. When started, it pushes the data acquisition instrument to apply pressure to the soil and rock sample, recording pressure and deformation data.

[0030] 2. In this utility model, the moving block and the connecting plate are fixedly connected, allowing the support frame 2 to move relative to the support frame 1. The support frame 2 serves as the main support structure, and the adjusting rod is rotatably connected to the top of the support frame 2. The position of the adjusting block is controlled by rotation. The adjusting block is connected to the adjusting rod and the support rod. The rotation of the adjusting rod will drive the adjusting block and the support rod to move, thereby achieving precise adjustment of the length and position of the support rod. Through the adjusting rod, it can adapt to different geotechnical testing scenarios, such as keeping the device level on uneven ground, or adjusting the posture of the testing equipment according to the geotechnical sample, to ensure the smooth progress of the testing work. Attached Figure Description

[0031] Figure 1 This is a perspective view of a soil and rock compressive strength testing device proposed in this utility model;

[0032] Figure 2 This is a side view of a soil and rock compressive strength testing device proposed in this utility model;

[0033] Figure 3 This is a top view of a soil and rock compressive strength testing device proposed in this utility model;

[0034] Figure 4 This is a partial structural schematic diagram of a soil and rock compressive strength testing device proposed in this utility model;

[0035] Figure 5 This is a split diagram of the adjustment mechanism of a soil and rock compressive strength testing device proposed in this utility model.

[0036] Legend:

[0037] 1. Support frame one; 2. Adjustment mechanism; 201. Moving block; 202. Connecting plate one; 203. Support frame two; 204. Adjusting rod; 205. Adjusting block; 206. Support rod; 3. Turntable; 4. Support leg one; 5. Support leg two; 6. Slide groove; 7. Motor; 8. Pulley; 9. Adjustment frame; 10. Support plate; 11. Hydraulic push rod; 12. Data acquisition instrument; 13. Anti-slip sleeve; 14. Foot pad; 15. Fixing block; 16. Connecting hole; 17. Connecting plate two; 18. Auxiliary wheel; 19. Moving plate; 20. Moving frame; 21. Fixing frame; 22. Fixing hole; 23. Shim; 24. Bolt. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model provides a soil and rock compressive strength testing device, including a support frame 1, a turntable 3 rotatably connected around the outer wall of the support frame 1, a support leg 4 rotatably connected to one side of the outer wall of the turntable 3, a support leg 5 slidably connected to one side of the outer wall of the support leg 4, multiple sliding grooves 6 are formed around the outer wall of the support leg 4, a motor 7 slidably connected to one side of the outer wall of the support leg 5, a pulley 8 is fixedly connected to the output end of the motor 7, the pulley 8 is slidably connected to the middle of the inner wall of the sliding groove 6, an adjustment frame 9 is rotatably connected to the left and right sides of the outer wall of the motor 7, a support plate 10 is rotatably connected to the bottom end of the adjustment frame 9 adjacent to the bottom end, a hydraulic push rod 11 is fixedly connected to the top of the outer wall of the support plate 10, a data acquisition instrument 12 is fixedly connected to the output end of the hydraulic push rod 11, multiple adjustment mechanisms 2 are fixedly connected around the outer wall of the support frame 1, the adjustment mechanisms 2 are used to support the testing device, anti-slip sleeves 13 are fixedly connected to the top of the outer wall of multiple adjustment rods 204, and foot pads 14 are fixedly connected to the bottom of the outer wall of multiple support rods 206.

[0040] Specifically, support frame 1 serves as the foundation of the device, providing primary support. Turntable 3 is connected to the outer wall of the support frame, allowing support leg 4 to flexibly adjust its angle to adapt to different scenarios. Support leg 2 5 can slide to adjust the height and horizontal position of the device, ensuring stability. Motor 7 is installed on support leg 2 5, driving pulley 8 to move within the slide groove 6 for precise adjustment. Adjustment frame 9 is connected to motor 7, allowing adjustment of the position and angle of support plate 10 to adapt to different needs. Hydraulic push rod 11 is a key component for applying pressure. Upon startup, it pushes data acquisition instrument 12 to apply pressure to the soil and rock sample, recording pressure and deformation data to provide a basis for analyzing the compressive strength of the soil and rock. Multiple adjustment mechanisms 2 are fixedly connected around the outer wall of support frame 1. These adjustment mechanisms 2 support the testing device. Anti-slip sleeves 13 are fixedly connected to the top of the outer wall of multiple adjustment rods 204 to ensure their flexibility and ease of operation, thereby improving safety during use. Foot pads 14 are fixedly connected to the bottom of the outer wall of multiple support rods 206. These foot pads 14 increase the contact area between the support rods 206 and the ground, thereby improving overall stability.

[0041] Reference Figure 1 , Figure 2 and Figure 5 The adjustment mechanism 2 includes a movable block 201, which is fixedly connected to the bottom of the outer wall of the support frame 1. The bottom of the outer wall of the movable block 201 is slidably connected to a connecting plate 202. A support frame 203 is fixedly connected to one side of the outer wall of the connecting plate 202. An adjustment rod 204 is rotatably connected to the top of the outer wall of the support frame 203. An adjustment block 205 is rotatably connected to the middle of the outer wall of the adjustment rod 204. A support rod 206 is rotatably connected to the other end of the adjustment block 205. The support rod 206 is slidably connected to the bottom of the inner wall of the support frame 203. A plurality of fixing blocks 15 are fixedly connected to the top of the outer wall of the support plate 10. Connection holes 16 are opened around the outer wall of the fixing blocks 15. A connecting plate 27 is slidably connected to one side of the outer wall of the pulley 8. An auxiliary wheel 18 is rotatably connected to the middle of the outer wall of the connecting plate 27.

[0042] Specifically, the movable block 201 and the connecting plate 202 are slidably connected, allowing the support frame 203 to move relative to the support frame 1, providing a basis for flexible adjustment of the device. The support frame 203, as the main support structure, connects other adjusting components to ensure system stability. The adjusting rod 204 is rotatably connected to the top of the support frame 203, and its rotation controls the position of the adjusting block 205. The adjusting block 205 is connected to the adjusting rod 204 and the support rod 206. The rotation of the adjusting rod 204 will drive the adjusting block 205 and the support rod 206 to move, achieving precise adjustment of the length and position of the support rod 206. The support angle and height of the device can be adjusted by adjusting rod 204 to adapt to different geotechnical testing scenarios, such as keeping the device level on uneven ground or adjusting the posture of the testing equipment according to the geotechnical sample to ensure smooth testing. The fixing block 15 on the top of the support plate 10 can be connected to other components through the connecting holes 16 on all four sides to achieve stable assembly between different parts of the device and build a complete test device structure. The connecting plate 17, which is slidably connected to the pulley 8, will move as the pulley 8 slides in the groove 6 of the support leg 4. The auxiliary wheel 18, which is rotatably connected in the middle of the connecting plate 17, plays an auxiliary support and guiding role during the movement, reducing the movement resistance and ensuring the smoothness of the movement of the connecting plate 17 and the connected components, which helps to improve the smoothness and stability of the entire device during adjustment and operation.

[0043] Reference Figure 1 , Figure 2 and Figure 3 A movable plate 19 is fixedly connected to the front of the outer wall of multiple motors 7. A movable frame 20 is fixedly connected to the front of the outer wall of the movable plate 19. A fixed frame 21 is fixedly connected to the front of the outer wall of the turntable 3. A fixed hole 22 is opened on the front of the outer wall of the fixed frame 21. A gasket 23 is fixedly connected to the top of the outer wall of the data acquisition instrument 12. A bolt 24 is threadedly connected to the top of the outer wall of the gasket 23.

[0044] Specifically, multiple motors 7 drive the moving frame 20 to move via a movable plate 19 fixedly connected to the front side of its outer wall, providing power support for the position adjustment of the device. The fixed frame 21 connected to the front side of the turntable 3 has a fixing hole 22, which can be used to fix it to other components or external structures to ensure that the device works in coordination with other facilities. The pad 23 on the top of the data acquisition instrument 12 increases the contact area with the bolt 24 on the one hand, and the bolt 24 connected by threads can securely install the data acquisition instrument 12 in the corresponding position, preventing inaccurate data acquisition due to vibration and displacement during the test, and ensuring the stability of the data acquisition instrument 12.

[0045] Working Principle: Support frame 1 serves as the basic structure of the entire device, providing primary support. Turntable 3 is rotatably connected to the outer wall of support frame 1, allowing support leg 4 to flexibly adjust its angle via turntable 3 to adapt to different placement scenarios and terrains, facilitating stable placement of the device in the soil and rock area to be tested. Support leg 2 5 on support leg 1 4 can slide along one side of the outer wall. This telescopic structure further adjusts the overall height and horizontal position of the device, ensuring stability. Motor 7 is mounted on support leg 2 5, and its output end is fixedly connected to pulley 8, which slides within multiple grooves 6 opened around the outer wall of support leg 1 4. When motor 7 starts, it drives pulley 8 to move within the grooves 6. Because the movement of pulley 8 is constrained by the grooves 6, it causes support leg 2 5 to telescopically extend relative to support leg 1 4, thereby more precisely adjusting the device height and fine-tuning the position of support leg 2 5, ensuring the stability and levelness of the entire device during placement and subsequent testing. Adjustment frame 9, rotatably connected to the left and right sides of the outer wall of motor 7, has its bottom end... The adjacent side is rotatably connected to the support plate 10. When the motor 7 drives the pulley 8 to move and the position of the second support leg 5 changes, the adjustment frame 9 will adjust its angle accordingly, thereby causing the support plate 10 to make corresponding position and angle changes. This collaborative structure helps to adapt to different height and angle requirements. The rock and soil compressive strength test focuses on applying multi-directional pressure to the rock and soil sample to simulate the complex stress of the test device, which improves the accuracy of engineering design and construction. The hydraulic push rod 11 fixedly connected to the top of the support plate 10 is the key component for applying pressure. At the beginning of the test, the hydraulic push rod 11 is activated, and its output end pushes the data acquisition instrument 12 connected below to move towards the rock and soil sample and apply pressure. As the pressure gradually increases, the rock and soil sample will deform. At this time, the data acquisition instrument 12 begins to play its role. It can not only sense the pressure value applied to the rock and soil sample by the hydraulic push rod 11, but also record the deformation and other related data of the rock and soil sample under pressure. These data will provide an important basis for subsequent analysis of the compressive strength of the rock and soil.

[0046] The movable block 201 is fixed to the bottom of the outer wall of the support frame 1, serving as a key node connecting the support frame 1 to the subsequent structure. The movable block 201 is slidably connected to the connecting plate 202, allowing the support frame 203 to move relative to the support frame 1, laying the foundation for flexible adjustment of the entire device. The support frame 203, as a support structure, bears and connects other adjustment components, ensuring the stability of the entire adjustment system. The adjusting rod 204 is rotatably connected to the top of the outer wall of the support frame 203. When an external force is applied to the adjusting rod 204 to make it rotate, since one end of the adjusting rod 204 is fixed to the support frame 203, its rotation will cause the adjusting block 205 connected in the middle to move. The adjusting rod 204 is similar to a lever, changing the direction and point of application of the force by rotation, thereby controlling the position of the adjusting block 205. The adjusting block 205 is rotatably connected to the middle of the adjusting rod 204, and the other end is connected to the support rod 202. 6. The mechanism involves a rotating connection. When the adjusting block 205 is displaced due to the rotation of the adjusting rod 204, it drives the support rod 206 to move. Since the support rod 206 is slidably connected to the bottom of the inner wall of the second support frame 203, the displacement of the adjusting block 205 is converted into the sliding of the support rod 206 on the bottom of the inner wall of the second support frame 203. Through this linkage mechanism, precise adjustment of the extension length or position of the support rod 206 can be achieved. By rotating the adjusting rod 204, the adjusting block 205 and the support rod 206 can be driven to move sequentially, changing the position and extension length of the support rod 206 within the second support frame 203. This adjustment process can be used to adjust the support angle and height of the device and to fine-tune the overall structure of the device to adapt to different geotechnical testing scenarios. For example, it can be used to adjust the device to keep it level on uneven ground, and the posture of the testing equipment can be adjusted according to the height and position of the geotechnical sample to ensure the smooth progress of the testing work.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A testing device for soil and rock compressive strength, comprising a support frame (1), characterized in that: A turntable (3) is rotatably connected around the outer wall of the support frame (1). A support leg (4) is rotatably connected to one side of the outer wall of the turntable (3). A support leg (5) is slidably connected to one side of the outer wall of the support leg (4). Multiple sliding grooves (6) are provided around the outer wall of the support leg (4). A motor (7) is slidably connected to one side of the outer wall of the support leg (5). A pulley (8) is fixedly connected to the output end of the motor (7). The pulley (8) is slidably connected to the middle of the inner wall of the sliding groove (6). An adjustment frame (9) is rotatably connected to the left and right sides of the outer wall of the motor (7). A support plate (10) is rotatably connected to the bottom end of the adjustment frame (9). A hydraulic push rod (11) is fixedly connected to the top of the outer wall of the support plate (10). A data acquisition instrument (12) is fixedly connected to the output end of the hydraulic push rod (11). Multiple adjustment mechanisms (2) are fixedly connected around the outer wall of the support frame (1). The adjustment mechanism (2) is used to support the detection device.

2. The soil and rock compressive strength testing device according to claim 1, characterized in that: The adjustment mechanism (2) includes a movable block (201), which is fixedly connected to the bottom of the outer wall of the support frame (1). The bottom of the outer wall of the movable block (201) is slidably connected to a connecting plate (202). A support frame (203) is fixedly connected to one side of the outer wall of the connecting plate (202). An adjustment rod (204) is rotatably connected to the top of the outer wall of the support frame (203). An adjustment block (205) is rotatably connected to the middle of the outer wall of the adjustment rod (204). A support rod (206) is rotatably connected to the other end of the adjustment block (205). The support rod (206) is slidably connected to the bottom of the inner wall of the support frame (203).

3. The soil and rock compressive strength testing device according to claim 2, characterized in that: Anti-slip sleeves (13) are fixedly connected to the top of the outer wall of each of the multiple adjusting rods (204), and foot pads (14) are fixedly connected to the bottom of the outer wall of each of the multiple support rods (206).

4. The soil and rock compressive strength testing device according to claim 1, characterized in that: The top of the outer wall of the support plate (10) is fixedly connected to a plurality of fixing blocks (15), and the outer walls of the fixing blocks (15) are provided with connection holes (16).

5. The soil and rock compressive strength testing device according to claim 1, characterized in that: A connecting plate 2 (17) is slidably connected to one side of the outer wall of the pulley (8), and an auxiliary wheel (18) is rotatably connected to the middle of the outer wall of the connecting plate 2 (17).

6. The soil and rock compressive strength testing device according to claim 1, characterized in that: A movable plate (19) is fixedly connected to the front side of the outer wall of the plurality of motors (7), and a movable frame (20) is fixedly connected to the front side of the outer wall of the movable plate (19).

7. The soil and rock compressive strength testing device according to claim 1, characterized in that: A fixing frame (21) is fixedly connected to the front side of the outer wall of the turntable (3), and a fixing hole (22) is opened on the front side of the outer wall of the fixing frame (21).

8. The soil and rock compressive strength testing device according to claim 1, characterized in that: A gasket (23) is fixedly connected to the top of the outer wall of the data acquisition instrument (12), and a bolt (24) is threadedly connected to the top of the outer wall of the gasket (23).

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