A highway subgrade compactness detection device for batch sampling

Abstract

The utility model discloses a realize batch sampling highway roadbed compactness detection device, including dolly, support, first electric telescopic link, lifting plate, sampling cylinder, auxiliary material discharging mechanism and rotary drive mechanism, and the support is fixed on the dolly, and two first electric telescopic links are fixedly installed in the support, and the telescopic end of first electric telescopic link is fixed with lifting plate, and the number of sampling cylinder is multiple, and the upside of every sampling cylinder is fixed with one hollow shaft that is communicated with it, and the hollow shaft is rotatably connected with lifting plate, and the bottom of every sampling cylinder is fixed with annular knife, and the rotary drive mechanism that is used for driving multiple sampling cylinder to rotate is installed on lifting plate, and the auxiliary material discharging mechanism that inserts into multiple sampling cylinder is installed on lifting plate. The utility model discloses can extract multiple samples once, and the efficiency is higher, and the operation is more convenient, and automatically carries out sampling and material discharging, and saves manpower.

Description

Technical Field

[0001] This utility model relates to the field of highway subgrade compaction testing technology, and in particular to a highway subgrade compaction testing device that enables batch sampling. Background Technology

[0002] When constructing highways, it is necessary to test the compaction degree of the roadbed. The ring sampler method is a commonly used method for testing compaction degree. A soil sample is taken using a ring sampler of known volume, the mass of the soil sample is weighed, and the wet density of the soil is calculated. Then, the moisture content of the soil is determined by methods such as drying, and the dry density of the soil is calculated. The compaction degree is obtained by comparing the dry density with the maximum dry density of the soil.

[0003] Chinese patent CN221972331U discloses a highway subgrade compaction testing device for batch sampling, including a ring cutter. An extrusion block is positioned above the ring cutter to assist its insertion into the soil. The bottom of the outer wall of the ring cutter has external threads. A connecting ring is mounted on the ring cutter, and its inner wall has internal threads that match the external threads on the ring cutter. The connecting ring is threadedly connected to the ring cutter. Four connecting blocks are symmetrically fixedly connected to the outer wall of the connecting ring. Each of the four connecting blocks has a connecting groove on its side wall away from the extrusion block. A connecting rod is movably connected to the upper end of the connecting groove via a connector. An auxiliary material-collecting device is positioned above the ring cutter. This invention, by incorporating the auxiliary material-collecting device, achieves easy material collection and reduces road surface damage.

[0004] When extracting soil samples for testing, multiple sets of samples need to be extracted to reduce errors. The aforementioned patent, however, can only extract one sample at a time, resulting in low efficiency. Furthermore, the aforementioned patent requires manual operation for both sampling and material discharge, which is cumbersome. Therefore, there is an urgent need to develop a highway subgrade compaction testing device that can extract multiple sets of samples at once, offering higher efficiency, easier operation, and automated sampling and material discharge, saving manpower and enabling batch sampling. This device would overcome the shortcomings of current practical applications and meet current needs. Utility Model Content

[0005] The purpose of this invention is to provide a highway subgrade compaction testing device for batch sampling, so as to solve the problems mentioned in the background art.

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

[0007] A highway subgrade compaction testing device for batch sampling includes a trolley, a support frame, first electric telescopic rods, a lifting plate, sampling cylinders, an auxiliary discharge mechanism, and a rotary drive mechanism. The trolley is fixed to the support frame, and two first electric telescopic rods are fixedly installed inside the support frame. The telescopic ends of the first electric telescopic rods are fixed to the lifting plate. Multiple sampling cylinders are included, each with a hollow shaft fixed to its upper side and rotatably connected to the lifting plate. A ring-shaped cutter is fixed to the bottom of each sampling cylinder. A rotary drive mechanism for rotating the multiple sampling cylinders is installed on the lifting plate. An auxiliary discharge mechanism, inserted into the multiple sampling cylinders, is also installed on the lifting plate. The auxiliary discharge mechanism includes a second electric telescopic rod, a ring, guide rods, and a pusher plate. Two second electric telescopic rods are fixed to the lifting plate, with their telescopic ends fixed to the ring. Multiple guide rods are fixed to the lower side of the ring, each guide rod passing through a hollow shaft, and a pusher plate fixed to the bottom of each guide rod.

[0008] Preferably, the pusher plate makes sliding contact with the inner wall of the sampling cylinder.

[0009] Preferably, the trolley is provided with a through hole for the sampling tube to pass through.

[0010] Preferably, the rotary drive mechanism includes a drive motor, a large gear, and a small gear. The drive motor is fixed to the lifting plate. A large gear is fixed on the output shaft of the drive motor. Multiple small gears that mesh with the large gear are arranged on the outer side of the large gear. Each small gear is fixed on a hollow shaft.

[0011] Preferably, a motor controller and a telescopic rod controller are fixedly installed on the trolley, the first electric telescopic rod and the second electric telescopic rod are electrically connected to the telescopic rod controller through wires, and the drive motor is electrically connected to the motor controller through wires.

[0012] Preferably, a power module is fixed on the trolley.

[0013] The beneficial effects of this utility model are as follows: This highway subgrade compaction testing device, which enables batch sampling, involves pushing a trolley onto the subgrade to be tested. Then, the first electric telescopic rod drives the lifting plate, sampling cylinder, auxiliary discharge mechanism, and rotary drive mechanism to move downwards. Simultaneously, the drive motor drives the large and small gears to rotate, which in turn drives the hollow shaft and sampling cylinder to rotate. The sampling cylinder then drives the ring cutter to rotate, cutting the ground and allowing soil samples to enter the sampling cylinder. Next, the first electric telescopic rod drives the lifting plate, sampling cylinder, auxiliary discharge mechanism, and rotary drive mechanism to move back to their original positions, removing the sampling cylinder from the soil. Finally, the second electric telescopic rod drives the ring, guide rod, and pusher plate to move downwards, pushing the soil sample out of the sampling cylinder for testing. In summary, this utility model can extract multiple samples at once, resulting in higher efficiency; it is also more convenient to operate, automatically performing sampling and discharge, saving manpower. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a partial structural diagram of the present invention. Figure 1 .

[0016] Figure 3 This is a partial structural diagram of the present invention. Figure 2 .

[0017] Figure 4 This is a partial structural diagram of the present invention. Figure 3 .

[0018] Figure 5 This is a partial structural cross-sectional view of the present invention.

[0019] Figure 6 This is a partial structural diagram of the present invention. Figure 4 .

[0020] Legend:

[0021] 1. Trolley; 101. Through hole; 2. Bracket; 3. First electric telescopic rod; 4. Lifting plate; 5. Sampling cylinder; 501. Hollow shaft; 502. Ring cutter; 6. Auxiliary discharge mechanism; 601. Second electric telescopic rod; 602. Ring; 603. Guide rod; 604. Pushing plate; 7. Rotary drive mechanism; 701. Drive motor; 702. Large gear; 703. Small gear; 8. Motor controller; 9. Telescopic rod controller; 10. Power module. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] See Figures 1-6 In this embodiment of the present invention, a highway subgrade compaction testing device for batch sampling includes a trolley 1, a support 2, a first electric telescopic rod 3, a lifting plate 4, sampling cylinders 5, an auxiliary material discharge mechanism 6, and a rotary drive mechanism 7. The support 2 is fixed on the trolley 1, and two first electric telescopic rods 3 are fixedly installed inside the support 2. The telescopic ends of the first electric telescopic rods 3 are fixed to the lifting plate 4. Multiple sampling cylinders 5 are included, and each sampling cylinder 5 has a hollow shaft 501 fixed to its upper side and connected to it. The hollow shaft 501 is rotatably connected to the lifting plate 4. A ring blade 502 is fixed to the bottom of each sampling cylinder 5. The lifting plate 4 is equipped with... A rotary drive mechanism 7 is provided to drive multiple sampling cylinders 5 to rotate. An auxiliary discharge mechanism 6 is installed on the lifting plate 4 and inserted into the multiple sampling cylinders 5. The auxiliary discharge mechanism 6 includes: a second electric telescopic rod 601, a ring 602, a guide rod 603 and a pusher plate 604. Two second electric telescopic rods 601 are fixed on the lifting plate 4. The telescopic ends of the second electric telescopic rods 601 are fixed to the ring 602. Multiple guide rods 603 are fixed on the lower side of the ring 602. Each guide rod 603 passes through a hollow shaft 501. A pusher plate 604 is fixed at the bottom of each guide rod 603. The pusher plate 604 slides in contact with the inner wall of the sampling cylinder 5.

[0025] The trolley 1 is provided with a through hole 101 for the sampling cylinder 5 to pass through.

[0026] The rotary drive mechanism 7 includes a drive motor 701, a large gear 702, and a small gear 703. The drive motor 701 is fixed to the lifting plate 4. The large gear 702 is fixed on the output shaft of the drive motor 701. Multiple small gears 703 are provided on the outer side of the large gear 702 to mesh with it. Each small gear 703 is fixed on a hollow shaft 501. In use, the drive motor 701 drives the large gear 702 and the small gear 703 to rotate. The small gear 703 drives the hollow shaft 501 and the sampling cylinder 5 to rotate. The sampling cylinder 5 drives the ring blade 502 to rotate so that the ring blade 502 can cut the ground.

[0027] The trolley 1 is fixedly equipped with a motor controller 8 and a telescopic rod controller 9. The first electric telescopic rod 3 and the second electric telescopic rod 601 are electrically connected to the telescopic rod controller 9 through wires (not shown). The drive motor 701 is electrically connected to the motor controller 8 through wires (not shown) for control.

[0028] The trolley 1 is equipped with a power module 10, which supplies power to various electrical components.

[0029] Working principle: This highway subgrade compaction testing device, which enables batch sampling, is used by pushing a trolley 1 onto the subgrade to be tested. Then, the first electric telescopic rod 3 drives the lifting plate 4, sampling cylinder 5, auxiliary discharge mechanism 6, and rotary drive mechanism 7 to move downwards. Simultaneously, the drive motor 701 drives the large gear 702 and small gear 703 to rotate. The small gear 703 drives the hollow shaft 501 and sampling cylinder 5 to rotate. The sampling cylinder 5 drives the ring cutter 502 to rotate, so that the ring cutter 502 cuts open the ground and the soil sample enters the sampling cylinder 5. Then, the first electric telescopic rod 3 drives the lifting plate 4, sampling cylinder 5, auxiliary discharge mechanism 6, and rotary drive mechanism 7 to move upwards back to their original positions, so that the sampling cylinder 5 is removed from the soil. Then, the second electric telescopic rod 601 drives the ring 602, guide rod 603, and pusher plate 604 to move downwards, so that the pusher plate 604 pushes out the soil sample in the sampling cylinder 5 for testing.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for detecting the compaction degree of highway subgrade through batch sampling, characterized in that, The system includes a trolley (1), a support (2), a first electric telescopic rod (3), a lifting plate (4), sampling cylinders (5), an auxiliary discharge mechanism (6), and a rotary drive mechanism (7). The trolley (1) is fixed with the support (2), and two first electric telescopic rods (3) are fixedly installed inside the support (2). The telescopic ends of the first electric telescopic rods (3) are fixed to the lifting plate (4). There are multiple sampling cylinders (5). Each sampling cylinder (5) has a hollow shaft (501) fixed on its upper side and connected to it. The hollow shaft (501) is rotatably connected to the lifting plate (4). Each sampling cylinder (5) has a ring blade (502) fixed at its bottom. The lifting plate (4) is equipped with a mechanism for driving the cylinder. A rotary drive mechanism (7) for rotating multiple sampling cylinders (5), an auxiliary discharge mechanism (6) for inserting into multiple sampling cylinders (5) is installed on the lifting plate (4), the auxiliary discharge mechanism (6) includes: a second electric telescopic rod (601), a ring (602), a guide rod (603) and a pusher plate (604), two second electric telescopic rods (601) are fixed on the lifting plate (4), the telescopic end of the second electric telescopic rod (601) is fixed to the ring (602), multiple guide rods (603) are fixed on the lower side of the ring (602), each guide rod (603) passes through a hollow shaft (501), and a pusher plate (604) is fixed at the bottom of each guide rod (603).

2. The highway subgrade compaction testing device for batch sampling according to claim 1, characterized in that, The pusher plate (604) slides in contact with the inner wall of the sampling cylinder (5).

3. The highway subgrade compaction testing device for batch sampling according to claim 1, characterized in that, The trolley (1) is provided with a through hole (101) for the sampling tube (5) to pass through.

4. The highway subgrade compaction testing device for batch sampling according to claim 1, characterized in that, The rotary drive mechanism (7) includes a drive motor (701), a large gear (702), and a small gear (703). The drive motor (701) is fixed to the lifting plate (4). The large gear (702) is fixed on the output shaft of the drive motor (701). Multiple small gears (703) are provided on the outer side of the large gear (702) to mesh with it. Each small gear (703) is fixed on a hollow shaft (501).

5. The highway subgrade compaction testing device for batch sampling according to claim 4, characterized in that, The trolley (1) is fixedly equipped with a motor controller (8) and a telescopic rod controller (9). The first electric telescopic rod (3) and the second electric telescopic rod (601) are electrically connected to the telescopic rod controller (9) through wires, and the drive motor (701) is electrically connected to the motor controller (8) through wires.

6. The highway subgrade compaction testing device for batch sampling according to claim 1, characterized in that, A power module (10) is fixed on the trolley (1).

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