A sampling device for roadbed testing

Abstract

This utility model relates to the field of road engineering technology and discloses a sampling device for roadbed testing, including a base plate. A support plate is fixedly connected to the top of the base plate, and a driving assembly is fixedly connected to the front side of the support plate. A connecting plate is fixedly connected to the driving end of the driving assembly, and an auger rod is slidably connected to the bottom end of the connecting plate. Fixed rods are slidably connected to the inside of both sides of the connecting plate. A threaded block is threadedly connected to one side of the inside of each fixed rod, and an arc-shaped sliding rod is rotatably connected to the adjacent sides of the two threaded blocks. A spring is sleeved on the outside of the arc-shaped sliding rod, and a limit plate is rotatably connected to the outside of the arc-shaped sliding rod. A receiving hole is opened inside the fixed rod. In this utility model, there is no need for tedious searching, using tools, and repeated twisting operations, which greatly saves labor and time costs, thereby improving the overall sampling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of road engineering technology, and in particular to a sampling device for roadbed testing. Background Technology

[0002] In the field of road engineering, quality control of the roadbed is a crucial link in ensuring the overall performance and service life of the road. With the continuous increase in traffic volume and the ever-increasing requirements for road load-bearing capacity, accurate detection of roadbed conditions has become increasingly important. In the early days, roadbed detection and sampling methods were relatively simple and rudimentary, mostly relying on manual excavation of small areas and then roughly collecting soil samples from the excavated pits. This method was extremely inefficient and consumed a lot of manpower and time. However, with the advancement of technology, a sampling device for roadbed detection has emerged.

[0003] Most roadbed testing sampling devices typically consist of a support plate, casters, drill bit, auger rod, and drive source. In use, the device is moved to the location where sampling is required, the drill bit is installed, and the drive source is activated to bring the drill bit into contact with the ground to drill a hole. After drilling is complete, the auger rod is replaced to extract the soil from the hole, which is then loaded by workers for subsequent testing.

[0004] In the existing technology, when it is necessary to install or replace the drill bit and auger rod, most of the time the bolts and nuts are tightened with tools. This is not only cumbersome to operate, but also time-consuming and labor-intensive, increasing the time spent on sampling and reducing the overall work efficiency. Therefore, in order to address the above shortcomings, a sampling device for roadbed testing is proposed. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a sampling device for roadbed testing, aiming to improve the problems of cumbersome, time-consuming, and labor-intensive installation and replacement of sampling device components in existing technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A sampling device for roadbed testing includes a base plate, a support plate fixedly connected to the top of the base plate, a drive assembly fixedly connected to the front side of the support plate, a connecting plate fixedly connected to the drive end of the drive assembly, an auger rod slidably connected to the bottom end of the connecting plate, fixed rods slidably connected to the interior of both sides of the connecting plate, a threaded block threaded to one side of the interior of the fixed rod, an arc-shaped sliding rod rotatably connected to the adjacent sides of the two threaded blocks, a spring sleeved on the exterior of the arc-shaped sliding rod, a limit plate rotatably connected to the exterior of the arc-shaped sliding rod, a receiving hole opened inside the fixed rod, two engaging balls disposed inside the exterior of the fixed rod, two limit rods fixedly connected to the exterior of the drive assembly, and support assemblies fixedly connected to the top left and right sides of the base plate.

[0008] Furthermore, multiple casters are fixedly connected to the bottom end of the base plate, and support blocks are fixedly connected to the four corners of the bottom end of the base plate. Sliding blocks are slidably connected to the inner wall of the bottom end of the support blocks, and limit plates are fixedly connected to the top of the sliding blocks. Springs are sleeved on the outside of the sliding blocks. Two connecting blocks are rotatably connected to the outside of the support blocks. L-shaped connecting rods are rotatably connected to the far sides of the two connecting blocks. Foot pedals are fixedly connected to one side of the two L-shaped connecting rods. A friction plate is fixedly connected to the bottom end of the sliding blocks.

[0009] Furthermore, the driving assembly includes a carrying plate, the rear end of which is fixedly connected to the front side of the support plate, an electric push rod fixedly connected to the top end of the carrying plate, a receiving block fixedly connected to the driving end of the electric push rod, a motor fixedly connected inside the receiving block, the driving end of the motor fixedly connected to the top end of the connecting plate, and the left and right sides of the receiving block fixedly connected to the adjacent sides of the two limiting rods respectively.

[0010] Furthermore, one side of the fixed rod is slidably connected to the outside of one side of the auger rod, and the outside of the arc-shaped sliding rod is slidably connected to the inside of the fixed rod.

[0011] Furthermore, the outer part of the limiting disc is slidably connected to the inside of the receiving hole, and the outer part of the arc-shaped sliding rod is in contact with the outer part of the engaging ball.

[0012] Furthermore, one end of the spring is fixedly connected to the inside of the receiving hole, and the other end of the spring is fixedly connected to one side of the limiting plate.

[0013] Furthermore, the support assembly includes auxiliary plates, the bottom ends of the two auxiliary plates are fixedly connected to the top of the base plate, and sliding holes are provided on the adjacent sides of the two auxiliary plates, the interior of the sliding holes being slidably connected to the exterior side of the limiting rod.

[0014] Furthermore, the outer side of the limiting plate is slidably connected to the inside of the support block, and the outer middle end of the L-shaped connecting rod is rotatably connected to the outer side of the sliding block.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, when it is necessary to replace the drill bit or auger rod, the threaded block is turned to drive the limiting plate to slide, so that the compression of the spring is removed, and then a rebound force is generated, which drives the arc-shaped sliding rod to move, so that the compression of the locking ball by the arc-shaped sliding rod is removed. At this time, the locking ball will return to the inside of the fixed rod due to the slope, so that the auger rod is no longer limited. At this time, the replacement work can be carried out without the need for tedious searching, using tools and repeated turning operations, which greatly saves the labor operation cost and time cost, thereby improving the overall sampling work efficiency.

[0017] 2. In this utility model, after moving the sampling position, stepping on the foot pedal causes the L-shaped connecting rod to drive the connecting block to move. Since the middle part of the L-shaped connecting rod rotates outside the sliding block, and one side of the connecting block rotates and connects to the outside of the support block, the sliding block slides inside the support block. The two move in opposite directions, the friction plate contacts the ground, provides support, and completes the fixation of the device. The second spring is also compressed, providing subsequent restoring force, improving the stability and ease of operation of the device during sampling. Attached Figure Description

[0018] Figure 1 This is a perspective view of a sampling device for roadbed testing proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the base plate structure of a sampling device for roadbed testing proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the carrier plate structure of a sampling device for roadbed testing proposed in this utility model;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the image;

[0022] Figure 5 for Figure 2 Enlarged view of point B in the image;

[0023] Figure 6 for Figure 2 Enlarged view of point C in the image.

[0024] Legend:

[0025] 1. Base plate; 2. Support plate; 3. Loading plate; 4. Electric push rod; 5. Receiving block; 6. Motor; 7. Connecting plate; 8. Screw rod; 9. Fixing rod; 10. Threaded block; 11. Arc-shaped sliding rod; 12. Spring 1; 13. Limiting plate; 14. Receiving hole; 15. Engaging ball; 16. Limiting rod; 17. Auxiliary plate; 18. Sliding hole; 19. Caster wheel; 20. Support block; 21. Sliding block; 22. Limiting plate; 23. Spring 2; 24. Connecting block; 25. L-shaped connecting rod; 26. Foot pedal; 27. Friction plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0027] Reference Figure 1 , Figure 3 and Figure 4 The present invention provides an embodiment of a sampling device for roadbed testing, comprising a base plate 1, a support plate 2 fixedly connected to the top of the base plate 1, the support plate 2 serving as a stable support, a drive assembly fixedly connected to the front side of the support plate 2, a connecting plate 7 fixedly connected to the drive end of the drive assembly, the drive assembly including a carrying plate 3, the rear end of the carrying plate 3 fixedly connected to the front side of the support plate 2, an electric push rod 4 fixedly connected to the top of the carrying plate 3, the electric push rod 4 having a flexible telescopic function to adapt to sampling needs at different depths, a receiving block 5 fixedly connected to the drive end of the electric push rod 4, a motor 6 fixedly connected inside the receiving block 5, providing protection for the motor 6 while ensuring stable operation of the motor 6;

[0028] The drive end of motor 6 is fixedly connected to the top of connecting plate 7. Motor 6 serves as the power source, driving connecting plate 7 to rotate at high speed. The left and right sides of receiving block 5 are respectively fixedly connected to the adjacent sides of two limiting rods 16. The limiting rods 16 cooperate with the sliding holes 18 on auxiliary plate 17 to guide receiving block 5 to move smoothly, ensuring that it will not deviate during movement and ensuring precise positioning of motor 6. The bottom end of connecting plate 7 is slidably connected to auger rod 8, which can efficiently carry the drilled soil upwards. The left and right sides of connecting plate 7 are slidably connected to fixing rods 9. Fixing rods 9 are used to fix auger rod 8, ensuring that auger rod 8 will not loosen or fall off during high-speed rotation. One side of the fixing rod 9 is slidably connected to the inside of one side of auger rod 8. The inside of the fixing rod 9 is threadedly connected to a threaded block 10. The threaded block 10 controls the arc-shaped sliding rod 11 by rotating the thread, realizing the fixing and loosening of auger rod 8.

[0029] Two threaded blocks 10 are rotatably connected to an arc-shaped sliding rod 11 on their adjacent sides to complete the fixing action of the auger rod 8. The external sliding rod 11 is slidably connected to the inside of the fixed rod 9. A spring 12 is sleeved on the outside of the arc-shaped sliding rod 11. The spring 12 stores elastic potential energy and provides power for the reset of the arc-shaped sliding rod 11, ensuring that the device can easily switch working states. A limit plate 13 is rotatably connected to the outside of the arc-shaped sliding rod 11. The limit plate 13 slides in the receiving hole 14 inside the fixed rod 9, which restricts the movement of the arc-shaped sliding rod 11. The process makes the device run more stably. The fixed rod 9 has a receiving hole 14 inside. One end of the spring 12 is fixedly connected to one side of the receiving hole 14, and the other end of the spring 12 is fixedly connected to one side of the limiting plate 13. The outside of the limiting plate 13 is slidably connected to the inside of the receiving hole 14. Two locking balls 15 are provided inside the outside of the fixed rod 9. The locking balls 15 are tightly engaged with the auger rod 8 to achieve quick fixation of the auger rod 8. The outside of the arc-shaped sliding rod 11 is in contact with the outside of the locking balls 15.

[0030] Reference Figure 2 and Figure 5 The drive assembly is externally fixedly connected to two limiting rods 16. The limiting rods 16 work together with the auxiliary plate 17 to ensure the stable operation of the drive assembly. Support components are fixedly connected to the top left and right sides of the base plate 1. The support components further enhance the stability of the device. The support components include auxiliary plates 17. The bottom ends of the two auxiliary plates 17 are fixedly connected to the top of the base plate 1. Sliding holes 18 are opened on the adjacent sides of the two auxiliary plates 17. The sliding holes 18 provide sliding tracks for the limiting rods 16 to ensure the precise movement of the drive assembly.

[0031] Reference Figure 1 , Figure 2 and Figure 6 The bottom of the base plate 1 is fixedly connected to multiple casters 19, which enable the device to move flexibly and easily move between different locations on the roadbed to quickly reach the sampling location. Support blocks 20 are fixedly connected to the four corners of the bottom of the base plate 1. The support blocks 20 cooperate with components such as sliding blocks 21 to achieve quick fixation of the device. The inner wall of the bottom of the support block 20 is slidably connected to the sliding block 21. The sliding block 21 slides in the support block 20, causing the friction plate 27 to contact the ground and complete the fixation action of the device. The top of the support block 20 is fixedly connected to the limiting plate 22, which ensures that the sliding block 21 slides smoothly in the support block 20 and will not deviate from the track. The outside of the limiting plate 22 is slidably connected to the inside of the support block 20. The outside of the sliding block 21 is fitted with a spring 23, which stores energy when the device is fixed.

[0032] The support block 20 is externally rotatably connected to two connecting blocks 24. The connecting blocks 24 connect the sliding block 21 and the L-shaped connecting rod 25 to realize the transmission of force and make the device fixing operation more convenient. The two connecting blocks 24 are rotatably connected to the opposite sides of each other. When the operator steps on the L-shaped connecting rod 25, it drives the connecting block 24 to rotate and starts the device fixing process. Its outer middle end is rotatably connected to the outer side of the sliding block 21. The two L-shaped connecting rods 25 are fixedly connected to one side of a foot pedal 26. The foot pedal 26 makes it convenient for the operator to apply external force and start the device fixing action. The bottom end of the sliding block 21 is fixedly connected to a friction plate 27. The friction plate 27 is in close contact with the ground and provides strong friction to ensure that the device is firmly rooted and does not shift during sampling.

[0033] Working principle: First, the sampling device is moved to the designated location on the roadbed where sampling is required using multiple casters 19 at the bottom of the base plate 1. Upon arrival, the operator steps on the foot pedal 26. The foot pedal 26, under pressure, moves the two L-shaped connecting rods 25 fixedly connected to it. Driven by the L-shaped connecting rods 25, the two connecting blocks 24 rotate, causing the sliding block 21 to slide inside the support block 20. The two blocks move in opposite directions. At this time, the friction plate 27 fixedly connected to the bottom of the sliding block 21 is in close contact with the ground, providing stable support and fixing the device. During this process, the second spring 23 is compressed, storing subsequent restoring force to prepare for subsequent movement of the device, ensuring the stability of the device during sampling and preventing displacement during the sampling process.

[0034] After the device is fixed in place, sampling preparation begins. The drive assembly is activated, and the electric push rod 4 moves the receiving block 5. The motor 6, fixedly connected inside the receiving block 5, moves accordingly. Simultaneously, the left and right sides of the receiving block 5 are fixedly connected to the adjacent sides of two limiting rods 16, and the outer side of the limiting rods 16 is slidably connected to the sliding hole 18 opened on the adjacent side of the auxiliary plate 17. This makes the receiving block 5 more stable during movement, preventing displacement and ensuring precise positioning of the motor 6. The connecting plate 7 fixedly connected to the drive end of the motor 6 is also ready, and the next step can be performed.

[0035] If the auger rod 8 needs to be installed, align the auger rod 8 with the bottom end of the connecting plate 7, and then turn the threaded block 10 in the opposite direction. The threaded block 10 is threaded and rotates inside the fixed rod 9, which drives the arc-shaped sliding rod 11 connected to it to move. The arc-shaped sliding rod 11 is fitted with a spring 12 and slides inside the fixed rod 9. As the arc-shaped sliding rod 11 moves, the spring 12 is compressed. When the arc-shaped side of the arc-shaped sliding rod 11 contacts the locking ball 15, the locking ball 15 is partially locked inside the top of the auger rod 8 under the compression of the arc-shaped sliding rod 11 and its own structural characteristics, thus completing the fixation of the auger rod 8 after installation, so that the auger rod 8 is firmly connected to the connecting plate 7, ready for sampling operation.

[0036] Then, motor 6 starts, driving the connecting plate 7 to rotate. The auger rod 8, which is securely connected to the bottom of the connecting plate 7, rotates accordingly, and the auger rod 8 begins to drill into the roadbed. As the auger rod 8 goes deeper, it continuously brings up the soil after drilling, completing the drilling and sampling work. During this process, the electric push rod 4 can adjust the height and position of motor 6 and auger rod 8 in a timely manner according to the required sampling depth to ensure sampling accuracy.

[0037] When a sampling is completed and the auger rod 8 needs to be replaced, the threaded block 10 is turned. The threaded block 10 causes the limiting plate 13 to slide within the receiving hole 14 inside the fixed rod 9, which removes the compression on the spring 12. The spring 12 then generates a rebound force, which drives the arc-shaped sliding rod 11 to move. The compression of the locking ball 15 by the arc-shaped sliding rod 11 is removed. At this time, the locking ball 15 will return to the inside of the fixed rod 9 due to the slope, so that the auger rod 8 is no longer limited. The auger rod 8 can then be easily removed for replacement without the need for tedious searching, using tools, and repeated turning operations. This greatly saves labor and time costs, thereby improving the overall sampling efficiency.

[0038] 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 sampling device for roadbed testing, comprising a base plate (1), characterized in that: A support plate (2) is fixedly connected to the top of the base plate (1). A drive assembly is fixedly connected to the front side of the support plate (2). A connecting plate (7) is fixedly connected to the drive end of the drive assembly. An auger rod (8) is slidably connected to the bottom end of the connecting plate (7). Fixed rods (9) are slidably connected to the inside of both the left and right sides of the connecting plate (7). A threaded block (10) is threadedly connected to one side of the inside of the fixed rod (9). An arc-shaped sliding rod (11) is rotatably connected to the adjacent side of the two threaded blocks (10). A spring (12) is sleeved on the outside of the arc-shaped sliding rod (11). A limit plate (13) is rotatably connected to the outside of the arc-shaped sliding rod (11). A receiving hole (14) is opened inside the fixed rod (9). Two locking balls (15) are set inside the outside of the fixed rod (9). Two limit rods (16) are fixedly connected to the outside of the drive assembly. A support assembly is fixedly connected to the top left and right sides of the base plate (1).

2. The sampling device for roadbed testing according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected to a plurality of casters (19). Support blocks (20) are fixedly connected to the four corners of the bottom of the base plate (1). Sliding blocks (21) are slidably connected to the inner wall of the bottom of the support blocks (20). Limiting plates (22) are fixedly connected to the top of the sliding blocks (21). Springs (23) are sleeved on the outside of the sliding blocks (21). Two connecting blocks (24) are rotatably connected to the outside of the support blocks (20). L-shaped connecting rods (25) are rotatably connected to the far side of the two connecting blocks (24). Foot pedals (26) are fixedly connected to one side of the two L-shaped connecting rods (25). Friction plates (27) are fixedly connected to the bottom of the sliding blocks (21).

3. The sampling device for roadbed testing according to claim 1, characterized in that: The drive assembly includes a carrying plate (3), the rear end of which is fixedly connected to the front side of the support plate (2), an electric push rod (4) is fixedly connected to the top end of the carrying plate (3), a receiving block (5) is fixedly connected to the drive end of the electric push rod (4), a motor (6) is fixedly connected inside the receiving block (5), the drive end of the motor (6) is fixedly connected to the top end of the connecting plate (7), and the left and right sides of the receiving block (5) are respectively fixedly connected to the adjacent side of the two limiting rods (16).

4. The sampling device for roadbed testing according to claim 1, characterized in that: The fixed rod (9) is slidably connected to the outside of one side of the auger rod (8), and the arc-shaped sliding rod (11) is slidably connected to the outside of the fixed rod (9).

5. A sampling device for roadbed testing according to claim 1, characterized in that: The outer side of the limiting disc (13) is slidably connected to the inside of the receiving hole (14), and the outer side of the arc-shaped sliding rod (11) is in contact with the outer side of the locking ball (15).

6. A sampling device for roadbed testing according to claim 1, characterized in that: One end of the spring (12) is fixedly connected to the inside side of the receiving hole (14), and the other end of the spring (12) is fixedly connected to the side of the limiting plate (13).

7. A sampling device for roadbed testing according to claim 1, characterized in that: The support assembly includes auxiliary plates (17), the bottom ends of the two auxiliary plates (17) are fixedly connected to the top of the base plate (1), and sliding holes (18) are provided on the adjacent sides of the two auxiliary plates (17). The interior of the sliding holes (18) is slidably connected to the exterior side of the limiting rod (16).

8. A sampling device for roadbed testing according to claim 2, characterized in that: The limiting plate (22) is externally slidably connected to the inside of the support block (20), and the outer middle end of the L-shaped connecting rod (25) is rotatably connected to the outer side of the sliding block (21).

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