Road detection sampler

Abstract

The utility model discloses a road detection sampler, which belongs to the technical field of road detection equipment and mainly comprises a sampling part, a sampling part and a double-support driving seat. The sampling part is composed of a first pedestal, a drilling cylinder and a first driving motor, and the drilling cylinder is driven to rotate and drill downwards through gear transmission; the sampling part comprises a second pedestal, a separation blade and a twist drill; a second driving motor drives the twist drill to rotate at a low speed and axially insert into soil in the drill barrel. A split type flange connecting structure is innovatively adopted, synchronous driving is kept when the spiral drill drills downwards, independent lifting of the separation flange is achieved after sampling, and the problem of synchronous clamping stagnation of the double spiral columns is effectively solved. The drill cylinder ascends to take out a soil sample, the separation blade and the twist drill form an anchoring effect to prevent the soil sample from falling back, and a relatively complete layered soil sample can be obtained in cooperation with a layered extraction technology. The device has the advantages of stable drilling, high sampling efficiency, compact structure and the like, can meet the requirements of highway subgrade compactness detection and stratified sampling, and remarkably improves the detection precision and the operation convenience.

Description

Technical Field

[0001] This utility model belongs to the technical field of highway testing equipment, specifically relating to a highway testing sampling machine. Background Technology

[0002] Highway testing sampling machines are key equipment for quality control in road engineering. They are mainly used to obtain cylindrical core samples of pavement or subgrade to analyze material properties, structural integrity, and construction quality. This equipment can obtain soil samples with clear stratification, providing reliable samples for compaction testing, material compressive strength testing, and other purposes.

[0003] Existing technology (Utility Model: CN221725628U) provides a highway inspection sampling machine, including a support base with a sampling slot. A lifting assembly is located on the top of the support base. Fixed supports are fixedly connected to both sides of the top of the support base, and guide rods are fixedly connected to the fixed supports. A support base is fixedly connected to the top of the guide rods. A first motor is fixedly installed on the top of the support base, and the drive end of the first motor is fixedly connected to a lead screw at the bottom. The lifting assembly allows for precise sampling and avoids deviation. However, the sampling structure of this utility model is a drill cylinder structure. When extracting soil, the soil is loose inside the drill cylinder, which can cause soil to fall and prevent sampling. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a highway inspection sampling machine that squeezes and anchors the soil inside the drill barrel to ensure that the soil sample can be successfully extracted.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model includes a sampling unit and a sampling section. The sampling unit includes a vertically movable first base, on which a vertically penetrating drill cylinder is rotatably mounted. A first drive motor is mounted on the first base to drive the drill cylinder to rotate. The sampling section includes a vertically movable second base located above the first base. A disc-shaped baffle is rotatably mounted on the lower side of the second base. A second drive motor is mounted on the second base to drive the baffle to rotate. The baffle is coaxially arranged with the drill cylinder, and a spiral drill is coaxially fixed on the lower side of the baffle.

[0007] Furthermore, it also includes two support drive seats. Each support drive seat includes a base plate, on which a vertical column is fixed. The vertical column has a groove on its side, and a spiral column is rotatably arranged in the groove. A movable seat is rotatably connected to the spiral column. The movable seat is slidably arranged on the vertical column. The first seat and the second seat are respectively fixedly connected to the two movable seats.

[0008] Furthermore, the output shaft of the second drive motor is exposed and fixedly connected to the lower side of the second base with a disc-shaped upper flange. A disc-shaped lower flange is attached to the lower side of the upper flange. The upper flange and the lower flange are fixed together by screws. A connecting rod is fixedly attached to the lower flange extending downward. The connecting rod is coaxially fixedly connected to the baffle.

[0009] Furthermore, the two base plates are fixedly connected by a connecting crank.

[0010] Furthermore, the lower edge of the drill barrel is provided with drill teeth.

[0011] The beneficial effects of this utility model are as follows:

[0012] This innovative invention employs a split flange connection structure, maintaining synchronous drive during auger drilling and allowing independent lifting and lowering of the flange after sampling, effectively solving the problem of synchronous jamming in dual-auger columns. The soil sample is brought out as the drill barrel rises, with the baffle plate and auger forming an anchoring effect to prevent the soil sample from falling back. Combined with stratified extraction technology, relatively complete stratified soil samples can be obtained. This device features stable drilling, high sampling efficiency, and a compact structure, meeting the needs of highway subgrade compaction testing and stratified sampling, significantly improving testing accuracy and operational convenience.

[0013] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0014] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0015] Figure 1 This is a schematic diagram of the overall sampling machine according to an embodiment of the present invention;

[0016] Figure 2 This is a cross-sectional view of the sampling machine according to an embodiment of the present invention;

[0017] The following are the markings in the attached diagram: 1. Sampling unit; 11. First base; 12. Drill barrel; 13. First drive motor; 2. Sampling unit; 21. Second base; 22. Baffle; 23. Second drive motor; 24. Spiral drill; 25. Upper flange; 26. Lower flange; 27. Connecting rod; 3. Support drive seat; 31. Base plate; 32. Vertical column; 33. Spiral column; 34. Moving seat; 35. Connecting crank. Detailed Implementation

[0018] like Figure 1and Figure 2 As shown, this utility model discloses a highway inspection sampling machine, including a sampling unit 1 and a sampling unit 2. The sampling unit 1 includes a vertically movable first base 11, on which a vertically penetrating drill cylinder 12 is rotatably mounted. The lower edge of the drill cylinder 12 is provided with drill teeth. A first drive motor 13 is provided on the first base 11 to drive the drill cylinder 12 to rotate. A gear is provided at the output end of the first motor, and the upper outer side of the drill cylinder 12 meshes with the gear. The sampling unit 2 includes a vertically movable second base 21, located above the first base 11. A disc-shaped baffle 22 is rotatably mounted on the lower side of the second base 21. A second drive motor 23 is provided on the second base 21 to drive the baffle 22 to rotate. The baffle 22 is coaxially arranged with the drill cylinder 12, and a spiral drill 24 is coaxially fixed on the lower side of the baffle 22. It also includes two A support drive seat 3 is provided, which includes a base plate 31. Two base plates 31 are fixedly connected by a connecting crank 35. A vertical column 32 is fixed on the base plate 31. The vertical column 32 has a groove on its side, and a spiral column 33 is rotatably provided in the groove. A movable seat 34 is rotatably connected to the spiral column 33. The movable seat 34 is slidably disposed on the vertical column 32. The first base 11 and the second base 21 are fixedly connected to the two movable seats 34 respectively. The output shaft of the second drive motor 23 is exposed on the lower side of the second base 21 and fixedly connected to a disc-shaped upper flange 25. A disc-shaped lower flange 26 is attached to the lower side of the upper flange 25. The upper flange 25 and the lower flange 26 are fixed together by screws. A connecting rod 27 is fixedly provided downward on the lower flange 26. The connecting rod 27 is coaxially fixedly connected to the baffle 22.

[0019] The structural principle of this sampling and testing machine is as follows: The drill barrel 12 is driven to rotate by the first drive motor 13. The drill barrel 12 moves up and down with the first base 11. The first base 11 moves up and down along the vertical column 32 with the rotation of the auger 33. The drill barrel 12 moves downward and rotates at high speed, drilling into the road soil. The auger 24 rotates at low speed under the drive of the second drive motor 23 and moves downward along the vertical column 32 on another support drive base 3 with the second base 21. The auger 24 rotates and coaxially inserts into the soil inside the drill barrel 12, causing the soil inside the drill barrel 12 to be compressed and secured between the drill barrel 12 and the auger 24. The upper flange 25 and the lower flange 26 are fixedly connected by screws when the auger 24 is drilling downward, so that the auger 24 moves up and down with the second drive motor 23. After rotating and lowering, and screwing into the soil, the screws are removed, causing the upper flange 25 and lower flange 26 to lose their fixed connection. The second base 21 can then move upwards first. The structure under the lower flange 26 rises with the drill barrel 12. This structure avoids the difficulty of synchronizing and jamming the two spiral columns 33 when the sampling section 1 and the sampling section 2 move upwards. Subsequently, the soil is brought out by the rising of the drill barrel 12. After the soil is brought out, the drill barrel 12 continues to rise, the position of the spiral drill 24 remains unchanged, the baffle 22 blocks the soil, and the spiral drill 24 provides anchoring force to the soil. The drill barrel 12 then moves away from the soil, exposing the soil, which can then be sampled and tested. This sampler can remove road soil and prevent the soil from falling back during the removal process, obtaining more clearly layered soil samples.

[0020] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A highway inspection sampling machine, characterized in that: The sample unit includes a sampling section (1) and a sampling section (2). The sampling section (1) includes a vertically movable first platform (11), on which a drill barrel (12) is rotatably mounted. A first drive motor (13) is mounted on the first platform (11) to drive the drill barrel (12) to rotate. The sampling section (2) includes a vertically movable second platform (21), which is located above the first platform (11). A disc-shaped baffle (22) is rotatably mounted on the lower side of the second platform (21). A second drive motor (23) is mounted on the second platform (21) to drive the baffle (22) to rotate. The baffle (22) is coaxially arranged with the drill barrel (12), and a spiral drill (24) is coaxially fixed on the lower side of the baffle (22).

2. The highway inspection sampling machine according to claim 1, characterized in that: It also includes two support drive seats (3), each support drive seat (3) includes a base plate (31), a vertical column (32) is fixed on the base plate (31), the vertical column (32) has a groove on its side, and a spiral column (33) is rotatably provided in the groove. A movable seat (34) is rotatably connected to the spiral column (33), and the movable seat (34) is slidably disposed on the vertical column (32). The first base (11) and the second base (21) are respectively fixedly connected to the two movable seats (34).

3. The highway inspection sampling machine according to claim 2, characterized in that: The output shaft of the second drive motor (23) is exposed and fixedly connected to the lower side of the second base (21) with a disc-shaped upper flange (25). A disc-shaped lower flange (26) is attached to the lower side of the upper flange (25). The upper flange (25) and the lower flange (26) are fixed together by screws. A connecting rod (27) is fixedly extended downward from the lower flange (26). The connecting rod (27) is coaxially fixedly connected to the baffle (22).

4. The highway inspection sampling machine according to claim 3, characterized in that: The two base plates (31) are fixedly connected by a connecting rod (35).

5. The highway inspection sampling machine according to claim 4, characterized in that: The lower edge of the drill barrel (12) is provided with drill teeth.

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