Contaminated soil sampling device

Abstract

The invention relates to the technical field of soil sampling devices, in particular to a contaminated soil sampling device which comprises a mounting disc, a mounting cylinder and a drill bit assembly, an operation disc is fixedly mounted on the side face of the mounting disc, a round hole is formed in the mounting disc, and a motor is fixedly mounted in the center of the top of the mounting disc; a mounting cylinder is fixedly mounted at the bottom of the mounting disc, and the mounting cylinder is of a hollow cylinder structure; and a driving shaft is fixedly mounted at the output end of the motor. The multi-layer composite drill bit is adopted for sampling soil, after sampling, the multiple baffles of the fan-shaped structures can limit soil samples in the core pulling barrels, the situation that the soil samples are loosened and fall off in the drill bit taking-out process is avoided, the core pulling barrels are taken out, then the two core pulling barrels of the semi-cylindrical structures are separated, and the soil samples can be conveniently taken out. Therefore, the internal soil sample is completely taken out, the integrity of the sample is ensured, and the value of the soil sample on soil detection and analysis is improved.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling devices, in particular to a contaminated soil sampling device. Background Art

[0002] With the rapid development of industrialization and urbanization, a large amount of pollutants such as chemicals and heavy metals are discharged into the soil, resulting in the decline of soil quality and damage to the ecological environment. In order to effectively control soil pollution, it is necessary to conduct detailed detection and analysis of the contaminated soil. The contaminated soil sampling device is a key tool for obtaining soil samples for testing. Therefore, we propose a contaminated soil sampling device.

[0003] The prior art also has the following defects during use: When the contaminated soil sampling device in the prior art is sampling, it is difficult to take out the sampled soil sample. The sample needs to be taken out from the inside of the drill bit by vibration discharge or digging, which destroys the integrity of the sample and reduces the value of the sample for soil testing. In addition, during the process of removing the drill bit, the sample is easy to fall from the inside of the drill bit, and the integrity of the sample cannot be guaranteed. When drilling soil samples, the contaminated soil sampling device in the prior art requires manual intervention during the drilling process to apply downward pressure to the device to assist the drill bit in drilling, making the soil sampling device more dependent on manual operation. Not only is the work efficiency not ideal, but it is also easy to cause harm to the operator during the drilling process.

[0004] In view of this, we propose a contaminated soil sampling device to solve the existing problems. Summary of the invention

[0005] The object of the present invention is to provide a contaminated soil sampling device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a contaminated soil sampling device, comprising a mounting plate, a mounting tube and a drill assembly, an operating plate is fixedly mounted on the side of the mounting plate, a circular hole is opened inside the mounting plate, and a motor is fixedly mounted at the top center of the mounting plate; A mounting cylinder is fixedly mounted on the bottom of the mounting plate, and the mounting cylinder is a hollow cylindrical structure; A driving shaft is fixedly mounted on the output end of the motor; A drill bit assembly is fixedly mounted on the bottom of the driving shaft.

[0007] Preferably, the drill bit assembly comprises a cylinder, a plurality of guide blocks are arranged at equal intervals on the side of the cylinder, the guide blocks are diamond-shaped blocks, and a distance of three to five centimeters is arranged between a plurality of groups of guide blocks, a plurality of saw teeth are welded at equal intervals on the bottom of the cylinder, a connector is fixedly installed on the top of the cylinder, and a square interface is opened inside the connector; The inner wall of the cylinder is provided with a plurality of guide strips, and two core-pulling cylinders are installed inside the cylinder. The core-pulling cylinder is a hollow semi-cylindrical structure, and a plurality of snap-in grooves are opened on the side of the core-pulling cylinder, and the snap-in grooves are snap-connected with the guide strips. The inner wall of the core-pulling cylinder is provided with a plurality of baffles through pins, and the baffles are fan-shaped plates.

[0008] Preferably, a controller is fixedly mounted on the top of the mounting plate near the front position, and the controller is electrically connected to the motor via a wire.

[0009] Preferably, a distance sensor is fixedly mounted on one side of the mounting tube, and a detection port of the distance sensor is mounted vertically downward.

[0010] Preferably, three support rods are installed on the side surface of the installation tube through a pin shaft, and a support frame is installed on one end of the support rod away from the installation tube through a pin shaft.

[0011] Preferably, an electric telescopic rod is fixedly installed inside the support frame, the top of the support frame is connected to the bottom axis of the mounting plate through a pin, and the bottom of the support frame is a conical structure.

[0012] Preferably, a mounting head is fixedly mounted on the top of the driving shaft, and the mounting head is fixedly connected to the output end of the motor via bolts.

[0013] Preferably, a square joint is provided at the bottom of the driving shaft, and a threaded hole is provided inside the square joint.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention samples soil by adopting a multi-layer composite drill bit. After sampling, a plurality of baffles with fan-shaped structures can limit the soil sample inside the core-pulling barrel to prevent the soil sample from loosening and falling during the process of removing the drill bit. The core-pulling barrel is taken out and then the two semi-cylindrical core-pulling barrels are separated, so that the internal soil sample is completely taken out to ensure the integrity of the sample, thereby improving the value of the soil sample for soil detection and analysis.

[0015] The present invention provides a plurality of diamond-shaped guide blocks on the side of the cylinder, and can use the plurality of guide blocks to form a thread, so that when the cylinder rotates, the cylinder actively drills deep into the soil, and when the cylinder is vertically taken out, the diamond-shaped guide blocks reduce the friction between the cylinder and the soil, so as to facilitate the extraction of the cylinder from the soil, making the sampling process of the device more convenient and reducing the dependence of the device on manual labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional internal structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the front internal structure of the present invention; Figure 4 It is a front structural schematic diagram of the present invention; Figure 5 It is a schematic diagram of a partial three-dimensional structure of the present invention; Figure 6 It is a schematic diagram of the partial internal structure of the present invention; Figure 7 It is a schematic diagram of the local cross-sectional structure of the present invention.

[0017] In the figure: 1. installation plate; 101. operating plate; 102. controller; 103. motor; 2. installation cylinder; 201. support rod; 202. distance sensor; 203. support frame; 3. drill bit assembly; 301. cylinder body; 302. connector; 303. guide block; 304. sawtooth; 305. snap-in groove; 306. core pulling cylinder; 307. baffle; 4. drive shaft; 401. installation head. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] like Figure 1 - Figure 7 As shown, a contaminated soil sampling device proposed by the present invention comprises a mounting plate 1, a mounting tube 2 and a drill assembly 3, an operating plate 101 is fixedly mounted on the side of the mounting plate 1, a round hole is opened inside the mounting plate 1, and a motor 103 is fixedly mounted at the top center of the mounting plate 1, the mounting plate 1 can provide a mounting position for the surrounding components, and the operating plate 101 can provide a hand-held position for the device to facilitate the operation of the device, and the motor 103 adopts the YE3-100KW type, and the motor 103 can rotate after being energized, thereby driving the drive shaft 4 to rotate; A mounting cylinder 2 is fixedly mounted at the bottom of the mounting plate 1. The mounting cylinder 2 is a hollow cylindrical structure. The mounting cylinder 2 can provide a mounting position for surrounding components and provide protection for the drive shaft 4 to prevent the drive shaft 4 from being drawn into foreign objects when rotating at high speed. The output end of the motor 103 is fixedly mounted with a drive shaft 4, and the drive shaft 4 can connect the motor 103 with the drill assembly 3, so that the motor 103 drives the drill assembly 3 to rotate; A drill assembly 3 is fixedly mounted on the bottom of the driving shaft 4. The drill assembly 3 can rotate to drill into the soil to take samples of the soil.

[0020] Furthermore, the drill assembly 3 includes a barrel 301, and a plurality of guide blocks 303 are evenly spaced on the side of the barrel 301. The guide blocks 303 are rhombus-shaped blocks, and a distance of three to five centimeters is set between the plurality of groups of guide blocks 303. A plurality of saw teeth 304 are evenly welded on the bottom of the barrel 301. A connector 302 is fixedly installed on the top of the barrel 301, and a square interface is opened inside the connector 302. The barrel 301 can provide a location for installing the surrounding components, and the guide blocks 303 can connect the barrel 301. The guide is used so that when the cylinder 301 rotates, a plurality of guide blocks 303 cooperate to form a thread to help the cylinder 301 drill into the soil, reduce the manpower consumed by the cylinder 301 when sampling the soil, and improve the sampling efficiency. The saw teeth 304 can rotate with the cylinder 301, thereby improving the drilling effect of the device on the soil, so that the cylinder 301 can be quickly drilled into the soil for sampling. The connector 302 can be connected to the drive shaft 4 by bolts, so that the drive shaft 4 can drive the drill assembly 3 to rotate; The inner wall of the cylinder 301 is provided with a plurality of guide strips, and two core-pulling cylinders 306 are installed in the cylinder 301. The core-pulling cylinder 306 is a hollow semi-cylindrical structure, and a plurality of snap-in grooves 305 are provided on the side of the core-pulling cylinder 306, and the snap-in grooves 305 are snap-connected with the guide strips. A plurality of baffles 307 are installed on the inner wall of the core-pulling cylinder 306 through a pin shaft, and the baffles 307 are fan-shaped plates. The guide strips can be snap-connected with the snap-in grooves 305 on the side of the core-pulling cylinder 306, thereby limiting the position of the core-pulling cylinder 306 to prevent the core-pulling cylinder 306 from rotating irregularly inside the cylinder 301. After the two core-pulling cylinders 306 are combined A hollow cylindrical structure is formed, so that when the cylinder 301 drills into the soil, the soil sample can be stored, and after the sampling is completed, the two core-pulling cylinders 306 can be separated to quickly and completely remove the sample from the inside of the core-pulling cylinder 306. The snap-in groove 305 can be snap-connected with the guide bar to improve the installation stability of the core-pulling cylinder 306. The baffle 307 can be flipped, and a number of fan-shaped baffles 307 cooperate to limit the core-pulling cylinder 306 after the soil sample enters the core-pulling cylinder 306 to prevent the soil sample inside the core-pulling cylinder 306 from falling, thereby ensuring the integrity of the soil sample.

[0021] Furthermore, a controller 102 is fixedly installed on the top of the mounting plate 1 near the front position, and the controller 102 is electrically connected to the motor 103 through a wire. The controller 102 can control the motor 103, so that after the device preparation work is completed, the motor 103 drives the drive shaft 4 and the drill bit assembly 3 to rotate.

[0022] Furthermore, a distance sensor 202 is fixedly installed on one side of the mounting tube 2, and the detection port of the distance sensor 202 is installed vertically downward. The distance sensor 202 adopts the AKT-MS53L0 type. The distance sensor 202 can emit laser to the ground, so as to judge the distance between the distance sensor 202 and the ground, and control the electric telescopic rods inside the three support frames 203 to be slowly shortened through the data detected by the distance sensor 202, so as to make the drill bit assembly 3 slowly drill into the ground to sample the soil.

[0023] Furthermore, three support rods 201 are installed on the side of the mounting tube 2 through a pin shaft, and a support frame 203 is installed on one end of the support rod 201 away from the mounting tube 2 through a pin shaft. The support rod 201 adopts an electric telescopic rod, which can support the support rod 201, and the expansion angle of the support frame 203 can be adjusted by adjusting the length of the support rod 201, so as to adjust the supporting effect of the support frame 203 on the mounting plate 1, thereby ensuring the overall stability of the device under different terrains. The support frame 203 can support the device, thereby ensuring the stability of the device, and during the sampling process, the drilling depth of the drill bit assembly 3 into the soil can be adjusted by adjusting the internal electric telescopic rod, so that the soil at a specified depth can be sampled according to the set value.

[0024] Furthermore, an electric telescopic rod is fixedly installed inside the support frame 203, the top of the support frame 203 is connected to the bottom axis of the mounting plate 1 through a pin, and the bottom of the support frame 203 is a conical structure.

[0025] Furthermore, a mounting head 401 is fixedly mounted on the top of the driving shaft 4, and the mounting head 401 is fixedly connected to the output end of the motor 103 through bolts. The mounting head 401 can be connected to the motor 103, so that when the motor 103 rotates, the driving shaft 4 is driven to rotate.

[0026] Furthermore, a square joint is provided at the bottom of the driving shaft 4, and a threaded hole is provided inside the square joint.

[0027] Working principle: After the device is assembled and checked and confirmed to be correct, the support frame 203 is unfolded, and the device is fixedly installed above the soil to be sampled. The electric telescopic rod inside the support frame 203 is adjusted to make the saw teeth 304 contact the ground. The motor 103 is controlled by the controller 102 to rotate, so that the drive shaft 4 rotates and drives the drill assembly 3 to rotate slowly. At the same time, the electric telescopic rod inside the support frame 203 is slowly shortened, so that the drill assembly 3 slowly drills into the soil. The friction between the cylinder 301 and the soil is increased through a number of guide blocks 303, and the cylinder 301 is promoted to drill deep into the soil. The soil drilled by the saw teeth 304 The soil sample gradually enters the interior of the core-pulling barrel 306. After the soil sample sampling is completed, the motor 103 is turned off to stop the rotation of the drill assembly 3. The drill assembly 3 is pushed out of the soil by adjusting the length of the electric telescopic rod inside the support frame 203. During the extraction, the soil sample is affected by gravity to push the baffle 307 to flip, and the bottom of the soil sample is supported to prevent the soil sample from falling off from the inside of the core-pulling barrel 306. The core-pulling barrel 306 with the soil sample is taken out from the inside of the barrel body 301, and the two core-pulling barrels 306 are separated, and the soil sample is completely taken out from the inside of the core-pulling barrel 306 to complete the sampling of the contaminated soil.

[0028] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A contaminated soil sampling device, comprising a mounting plate (1), a mounting tube (2) and a drill assembly (3), characterized in that: An operating panel (101) is fixedly mounted on the side of the mounting panel (1), a circular hole is provided inside the mounting panel (1), and an electric motor (103) is fixedly mounted at the center of the top of the mounting panel (1); A mounting cylinder (2) is fixedly mounted on the bottom of the mounting plate (1), and the mounting cylinder (2) is a hollow cylindrical structure; A drive shaft (4) is fixedly mounted on the output end of the motor (103); A drill bit assembly (3) is fixedly mounted on the bottom of the driving shaft (4).

2. A contaminated soil sampling device according to claim 1, characterized in that: The drill bit assembly (3) comprises a cylinder (301), a plurality of guide blocks (303) are arranged at equal intervals on the side of the cylinder (301), the guide blocks (303) are rhombus-shaped blocks, and a distance of three to five centimeters is arranged between a plurality of groups of guide blocks (303), a plurality of saw teeth (304) are welded at equal intervals on the bottom of the cylinder (301), a connector (302) is fixedly mounted on the top of the cylinder (301), and a square interface is provided inside the connector (302); The inner wall of the cylinder (301) is provided with a plurality of guide strips. Two core-pulling cylinders (306) are plugged and installed inside the cylinder (301). The core-pulling cylinder (306) is a hollow semi-cylindrical structure. The side of the core-pulling cylinder (306) is provided with a plurality of clamping grooves (305), and the clamping grooves (305) are clamped and connected with the guide strips. The inner wall of the core-pulling cylinder (306) is provided with a plurality of baffles (307) via pins, and the baffles (307) are fan-shaped plates.

3. A contaminated soil sampling device according to claim 1, characterized in that: A controller (102) is fixedly mounted on the top of the mounting plate (1) near the front, and the controller (102) is electrically connected to the motor (103) via a wire.

4. A contaminated soil sampling device according to claim 1, characterized in that: A distance sensor (202) is fixedly mounted on one side of the mounting tube (2), and a detection port of the distance sensor (202) is mounted vertically downward.

5. The contaminated soil sampling device according to claim 1, characterized in that: Three support rods (201) are installed on the side of the installation cylinder (2) via a pin shaft, and a support frame (203) is installed on one end of the support rod (201) away from the installation cylinder (2) via a pin shaft.

6. A contaminated soil sampling device according to claim 5, characterized in that: An electric telescopic rod is fixedly installed inside the support frame (203); the top of the support frame (203) is connected to the bottom axis of the mounting plate (1) via a pin shaft, and the bottom of the support frame (203) is a conical structure.

7. The contaminated soil sampling device according to claim 1, characterized in that: A mounting head (401) is fixedly mounted on the top of the driving shaft (4), and the mounting head (401) is fixedly connected to the output end of the motor (103) via bolts.

8. A contaminated soil sampling device according to claim 7, characterized in that: A square joint is provided at the bottom of the driving shaft (4), and a threaded hole is provided inside the square joint.

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