A portable sampling device for monitoring soil heavy metal content in different functional areas of a city

Abstract

The utility model provides a portable sampling device for urban different function area soil heavy metal content monitoring relates to soil sampling technical field, including fixed base, the inside rotation of fixed base is connected with the drill cylinder, is provided with sampling mechanism in the inside of drill cylinder, sampling mechanism includes sliding sleeve, sliding sleeve sliding connection is in the outside of drill cylinder, the outer surface of drill cylinder is equipped with two sampling mouths, and the inner bottom wall of two sampling mouths is all certain angle of inclination, and sliding sleeve sets up in the outside of sampling mouth, and the inner wall of sliding sleeve is fixedly connected with two sliding frames, and two sliding frames all sliding connection are in the inside of drill cylinder. This is used for urban different function area soil heavy metal content monitoring's portable sampling device, plays the role of convenient urban soil heavy metal content monitoring sampling device more accurate collection different soil, improves urban different function area soil heavy metal content collection monitoring precision, guarantees urban soil heavy metal content monitoring sampling device use reliability.

Description

Technical Field

[0001] This utility model relates to a sampling device for monitoring heavy metal content in urban soil, specifically a portable sampling device for monitoring heavy metal content in soil in different functional areas of an city, belonging to the field of soil sampling technology. Background Technology

[0002] During urban construction, with the continuous development of industry, a large amount of wastewater and waste generated by urban industries are produced. In order to ensure the soil quality in different functional areas of the city and to detect whether the soil in different urban areas has excessive heavy metal pollution, it is necessary to regularly sample and test the heavy metal content of the soil in different functional areas of the city. At this time, it is necessary to use portable soil sampling devices to collect soil samples from different functional areas of the city and then carry out subsequent sampling and testing work.

[0003] Chinese Patent Publication CN216669365U discloses an urban forest soil sampling device. As the screw conveyor rotates, soil is brought into the connecting box and then falls into the sample storage box through the feed port on one side. Subsequently, the falling soil can be weighed by the cooperation of the set sliding plate, the contact block and the pressure sensor, so as to accurately control the weight of the sample. The device has the effects of rapid soil weighing and convenient use.

[0004] The aforementioned patented technology for urban soil heavy metal content monitoring and sampling devices typically involves drilling holes in the ground and then collecting soil samples in a container. This not only affects the convenience of sampling but also fails to accurately collect soil samples from different depths, thus impacting the accuracy of heavy metal content sampling and detection in different functional areas of the city and reducing the reliability of the urban soil heavy metal content monitoring and sampling device. Therefore, this paper proposes a portable sampling device for monitoring heavy metal content in urban soils in different functional areas. Utility Model Content

[0005] This invention proposes a portable sampling device for monitoring heavy metal content in soil in different functional areas of cities, in order to solve the problem that existing urban soil heavy metal content monitoring sampling devices cannot accurately and conveniently collect soil samples from different depths.

[0006] This utility model is achieved through the following technical solution: a portable sampling device for monitoring the heavy metal content of soil in different functional areas of an city, including a fixed base, a drill cylinder rotatably connected inside the fixed base, and a sampling mechanism provided inside the drill cylinder;

[0007] The sampling mechanism includes a sliding sleeve slidably connected to the outside of the drill barrel. Two sampling ports are opened on the outer surface of the drill barrel, and the inner bottom walls of both sampling ports are inclined at a certain angle. The sliding sleeve is positioned outside the sampling ports. Two sliding frames are fixedly connected to the inner wall of the sliding sleeve, and both sliding frames are slidably connected to the inside of the drill barrel. A connecting frame is fixedly connected to the upper surface of both sliding frames. Two sets of symmetrical positioning holes are opened on the outer surface of the drill barrel, with two holes in each set. Positioning frames are fixedly connected to both sides of the connecting frame. Positioning pins are slidably connected inside both positioning frames. One end of each positioning pin extends into the interior of the two positioning holes. Positioning springs are sleeved on the outer surface of each positioning pin. One end of each positioning spring is fixedly connected to one side of each positioning frame, and the other end of each positioning spring is fixedly connected to both sides of the connecting frame.

[0008] The drill barrel is equipped with a sampling component, and the mounting base is equipped with a power component.

[0009] Limiting rings are fixedly connected to the outer surfaces of the two positioning pins, and the sides of the two limiting rings that are close to each other are fixedly connected to the sides of the two positioning frames that are far apart from each other.

[0010] The sampling assembly includes a sampling tube, which is slidably connected inside the drill barrel. An exhaust groove is provided inside the sampling tube, and a handle is fixedly connected to the upper surface of the sampling tube.

[0011] The power assembly includes a servo motor, the bottom surface of which is fixedly connected to the upper surface of the fixed base. A gear plate is fixedly connected to the outer surface of the drill barrel. A gear transmission frame is rotatably connected to the upper surface of the fixed base. The outer surface of the gear transmission frame meshes with the outer surface of the gear plate. The output end of the servo motor is connected to the gear transmission frame via a bevel gear. Handles are fixedly connected to both the front and back of the fixed base.

[0012] An auxiliary bearing is fixedly embedded in the inner wall of the fixed base, and the inner wall of the inner ring of the auxiliary bearing is fixedly connected to the outer surface of the drill barrel.

[0013] A battery is fixedly connected to the upper surface of the mounting base, and the battery is electrically connected to the servo motor via wires.

[0014] This invention provides a portable sampling device for monitoring heavy metal content in soils of different functional areas in cities, which has the following beneficial effects:

[0015] This portable sampling device for monitoring heavy metal content in soil in different urban functional areas allows for drilling and sampling after the drill cylinder has penetrated a certain distance into the soil. The depth of the drill cylinder can be determined by measuring the distance between the fixed base and the ground using a measuring tape. Once the appropriate depth is reached, the positioning pins are manually pulled to both sides to pull them out of the positioning holes and pull the connecting frame upwards. This causes the sliding frame to slide the sliding sleeve upwards, exposing the sampling port. Simultaneously, the positioning pins are released, and the positioning spring, in conjunction with the positioning frame, pushes the positioning pins into the upper positioning hole to fix the upward-moving sliding sleeve. At this point, the drill cylinder rotates in place, allowing the sampling component to sample soil at a specific depth through the sampling port. This increases sampling convenience, facilitates more accurate sampling of soil at different depths for heavy metal content monitoring in urban soils, improves the accuracy of heavy metal content monitoring in different urban functional areas, and ensures the reliability of the urban soil heavy metal content monitoring sampling device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the fixing base structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the drill barrel of this utility model;

[0018] Figure 3 This is a cross-sectional view of the sampling cylinder of this utility model;

[0019] Figure 4 This is a cross-sectional view of the connecting frame of this utility model;

[0020] Figure 5 This is a schematic diagram of the servo motor and battery structure of this utility model.

[0021] Explanation of reference numerals in the attached figures

[0022] 1. Fixed base;

[0023] 2. Drill barrel;

[0024] 3. Sampling mechanism; 301. Sliding sleeve; 302. Sampling port; 303. Sliding frame; 304. Connecting frame; 305. Positioning hole; 306. Positioning frame; 307. Positioning pin; 308. Positioning spring; 309. Limiting ring;

[0025] 4. Sampling assembly; 401. Sampling cylinder; 402. Venting vent; 403. Handle;

[0026] 5. Power components; 501. Servo motor; 502. Gear disc; 503. Gear drive frame; 504. Handle; 505. Auxiliary bearing; 506. Battery. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0028] Please see Figures 1-5 This utility model provides a portable sampling device for monitoring the heavy metal content of soil in different functional areas of an city, including a fixed base 1, a drill cylinder 2 rotatably connected inside the fixed base 1, and a sampling mechanism 3 disposed inside the drill cylinder 2.

[0029] The sampling mechanism 3 includes a sliding sleeve 301, which is slidably connected to the outside of the drill cylinder 2. Two sampling ports 302 are opened on the outer surface of the drill cylinder 2. The inner bottom walls of both sampling ports 302 are inclined at a certain angle. The sliding sleeve 301 is positioned outside the sampling ports 302. Two sliding frames 303 are fixedly connected to the inner wall of the sliding sleeve 301. Both sliding frames 303 are slidably connected to the inside of the drill cylinder 2. A connecting frame 304 is fixedly connected to the upper surface of both sliding frames 303. Two sets of symmetrical positioning holes 305 are opened on the outer surface of the drill cylinder 2, with two holes in each set. Positioning frames 306 are fixedly connected to both sides of the connecting frame 304, and the interiors of the two positioning frames 306 are slidably connected... There are two positioning pins 307, one end of which extends into the interior of two positioning holes 305. Positioning springs 308 are fitted on the outer surfaces of the two positioning pins 307. One end of each positioning spring 308 is fixedly connected to one side of each positioning bracket 306, and the other end of each positioning spring 308 is fixedly connected to the two sides of each connecting bracket 304. Limiting rings 309 are fixedly connected to the outer surfaces of the two positioning pins 307. The side of each limiting ring 309 that is close to each other is fixedly connected to the side of each positioning bracket 306 that is far away from each other. The limiting rings 309 can limit the position of the positioning pins 307, prevent the positioning pins 307 from moving excessively to the right, and increase the reliability of the positioning pins 307.

[0030] Please refer to this carefully. Figure 2 and Figure 3The sampling component 4 is provided inside the drill barrel 2. The sampling component 4 includes a sampling tube 401, which is slidably connected inside the drill barrel 2. The sampling tube 401 has an exhaust groove 402 inside. A handle 403 is fixedly connected to the upper surface of the sampling tube 401. When soil at a specific depth enters the drill barrel 2 through the sampling port 302, it can slide into the sampling tube 401 through the inclination of the sampling port 302. At this time, the soil at the specific depth can be taken out for sampling by pulling the handle 403 upward. The exhaust groove 402 can balance the gas pressure inside the drill barrel 2 when the sampling tube 401 slides, ensuring the smooth sliding of the sampling tube 401.

[0031] Please refer to this carefully. Figure 5 A power assembly 5 is installed above the fixed base 1. The power assembly 5 includes a servo motor 501. The bottom surface of the servo motor 501 is fixedly connected to the upper surface of the fixed base 1. A gear disk 502 is fixedly connected to the outer surface of the drill barrel 2. A gear transmission frame 503 is rotatably connected to the upper surface of the fixed base 1. The outer surface of the gear transmission frame 503 meshes with the outer surface of the gear disk 502. The output end of the servo motor 501 is connected to the gear transmission frame 503 through a bevel gear. Handles 504 are fixedly connected to both the front and back of the fixed base 1. With the power provided by the servo motor 501 and the fixed base 1, the gear transmission frame 503 can be rotated by utilizing the characteristics of bevel gear transmission and reversal. In turn, the drill barrel 2 can be rotated by the gear disk 502, ensuring the smooth progress of drilling work during the monitoring and sampling of heavy metal content in soil in different functional areas of the city.

[0032] Please refer to this carefully. Figure 2 and Figure 5 An auxiliary bearing 505 is fixedly embedded in the inner wall of the fixed base 1. The inner wall of the inner ring of the auxiliary bearing 505 is fixedly connected to the outer surface of the drill barrel 2. The auxiliary bearing 505 can position the distance between the drill barrel 2 and the fixed base 1, while increasing the smoothness of the rotation of the drill barrel 2 and ensuring the service life of the drill barrel 2.

[0033] Please refer to this carefully. Figure 5 A battery 506 is fixedly connected to the upper surface of the mounting base 1. The battery 506 is electrically connected to the servo motor 501 through wires. The battery 506 can provide the power required for the servo motor 501 to work, ensuring that the servo motor 501 can work normally.

[0034] When in use, this utility model uses the power provided by the servo motor 501 in conjunction with the electrical energy provided by the fixed base 1 and the storage battery 506 to drive the gear transmission frame 503 to rotate by utilizing the characteristics of bevel gear transmission and reversal. In turn, the drill cylinder 2 can be driven to rotate by the gear plate 502. At this time, the manual handle 504 can be extended and the drill cylinder 2 can be pressed down to make the drill cylinder 2 drill into the soil, ensuring the smooth progress of drilling work during the monitoring and sampling of heavy metal content in soil in different functional areas of the city.

[0035] When the drill barrel 2 penetrates a certain distance into the soil to drill and take samples, the depth of the drill barrel 2 into the soil can be determined by measuring the distance between the fixed base 1 and the ground with a tape measure. When the appropriate depth is reached, the positioning pin 307 is manually pulled to both sides to pull the positioning pin 307 out of the positioning hole 305 and pull the connecting frame 304 upward. The sliding frame 303 drives the sliding sleeve 301 to slide upward to expose the sampling port 302. At the same time, the positioning pin 307 is released. The elastic force of the positioning spring 308 cooperates with the positioning frame 306 to push the positioning pin 307 into the upper positioning hole 305 to fix the sliding sleeve 301 after it has moved upward.

[0036] Finally, by rotating the drill cylinder 2 in place, it can slide into the sampling cylinder 401 through the inclined angle of the sampling port 302. At this time, the soil at the characteristic depth can be taken out for sampling by pulling the handle frame 403 upward. The exhaust groove 402 can balance the gas pressure inside the drill cylinder 2 inside the sampling cylinder 401 during sliding, ensuring the smooth sliding of the sampling cylinder 401. This facilitates more accurate sampling of soil at different depths by the urban soil heavy metal content monitoring sampling device, improves the accuracy of heavy metal content collection and monitoring in different functional areas of the city, and ensures the reliability of the urban soil heavy metal content monitoring sampling device.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A portable sampling device for monitoring the content of heavy metals in the soil of different functional areas in cities, comprising a fixing seat (1), characterized in that: The fixed base (1) is rotatably connected to the drill cylinder (2), and the drill cylinder (2) is provided with a sampling mechanism (3). The sampling mechanism (3) includes a sliding sleeve (301), which is slidably connected to the outside of the drill barrel (2). Two sampling ports (302) are opened on the outer surface of the drill barrel (2). The inner bottom walls of both sampling ports (302) are inclined at a certain angle. The sliding sleeve (301) is located outside the sampling ports (302). Two sliding frames (303) are fixedly connected to the inner wall of the sliding sleeve (301). Both sliding frames (303) are slidably connected to the inside of the drill barrel (2). A connecting frame (304) is fixedly connected to the upper surface of both sliding frames (303). Two sets of symmetrical... Positioning holes (305), each set of positioning holes (305) has two, positioning frames (306) are fixedly connected to both sides of the connecting frame (304), positioning pins (307) are slidably connected inside the two positioning frames (306), one end of the two positioning pins (307) extends into the interior of the two positioning holes (305), positioning springs (308) are sleeved on the outer surface of the two positioning pins (307), one end of the two positioning springs (308) is fixedly connected to one side of the two positioning frames (306), and the other end of the two positioning springs (308) is fixedly connected to both sides of the connecting frame (304); The inside of the drill barrel (2) is provided with a sampling component (4), and the top of the fixed base (1) is provided with a power component (5). 2.The portable sampling device for monitoring the content of heavy metals in soil in different functional areas of a city according to claim 1, characterized in that: The outer surfaces of the two positioning pins (307) are fixedly connected to limit rings (309), and the sides of the two limit rings (309) that are close to each other are fixedly connected to the sides of the two positioning frames (306) that are far apart from each other. 3.The portable sampling device for monitoring the content of heavy metals in soil in different functional areas of a city according to claim 1, characterized in that: The sampling assembly (4) includes a sampling tube (401), which is slidably connected inside the drill tube (2). An exhaust groove (402) is provided inside the sampling tube (401), and a handle frame (403) is fixedly connected to the upper surface of the sampling tube (401). 4.The portable sampling device for monitoring the content of heavy metals in soil in different functional areas of a city according to claim 1, characterized in that: The power assembly (5) includes a servo motor (501), the bottom surface of which is fixedly connected to the upper surface of the fixed base (1), a gear plate (502) is fixedly connected to the outer surface of the drill barrel (2), a gear transmission frame (503) is rotatably connected to the upper surface of the fixed base (1), the outer surface of the gear transmission frame (503) meshes with the outer surface of the gear plate (502), the output end of the servo motor (501) is connected to the gear transmission frame (503) via a bevel gear, and a handle (504) is fixedly connected to both the front and back of the fixed base (1). 5.The portable sampling device for monitoring the content of heavy metals in soil in different functional areas of a city according to claim 1, characterized in that: An auxiliary bearing (505) is fixedly embedded in the inner wall of the fixed base (1), and the inner wall of the inner ring of the auxiliary bearing (505) is fixedly connected to the outer surface of the drill barrel (2). 6.The portable sampling device for monitoring the content of heavy metals in soil in different functional areas of a city according to claim 4, characterized in that: The upper surface of the fixing base (1) is fixedly connected with a storage battery (506), which is electrically connected with the servo motor (501) through a wire.

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