Sampling device for collecting soil solid waste volatile organic compounds for detection

Abstract

The utility model relates to a sampling device for collecting soil solid waste volatile organic compounds for detection, and aims to solve the problems that the current soil solid waste sampling can only take a sample once each time, the practicability of the sampling device is poor, the sampled soil solid waste sample is directly exposed outside after being sampled, the sampled soil solid waste sample is easy to pollute, and the sampling efficiency is high. The soil solid waste organic matter detection device comprises a bottom ring, four fixing rods are fixedly connected to the top of the bottom ring, a fixing disc and a top disc are installed among the four fixing rods, a rotating disc is rotationally connected to the middle of the end, close to the fixing disc, of the top disc, and a servo motor is installed on one side of the end, close to the fixing disc, of the rotating disc; the driving end of the servo motor is fixedly connected with a connecting rod, connecting holes are formed in the two sides of the connecting rod, the connecting rod is connected with different external threaded pipes by rotating the rotating disc, soil solid waste at different positions can be sampled at the same time, and then the practicability of the sampling device is improved.

Description

Technical Field

[0001] The utility model relates to the field of soil solid waste sampling, in particular to a sampling device for collecting soil solid waste volatile organic matter for detection. Background Art

[0002] Soil sampling devices are widely used in soil testing, formula fertilization, volatile organic compound testing, soil monitoring and other soil testing work, so as to accurately collect soil samples. The soil sampling device mainly uses a sampling tube for sampling. When the sampling tube is drilled into the ground, the soil will form a soil column in the sampling tube. The entire soil column is extracted and analyzed.

[0003] According to the disclosed patent CN215726878U, a sampling device for collecting soil volatile organic matter detection is disclosed; it includes a tripod body and a sampling unit, the sampling unit includes a length-adjustable component, a sampling tube, an electromagnet and a permanent magnet, and a sawtooth is fixed on the bottom surface of the sampling tube. In the process of realizing the utility model, the inventor found that at least the following problems in the prior art have not been solved. The sampling unit can be fixed on the ground by the tripod body to prevent the sampling unit from being displaced during sampling and causing the sampling tube to tilt, thereby maintaining the natural condition of the sampled soil layer. During use, traditional soil solid waste sampling can only take one sample each time, and the practicality of the sampling device is poor. Moreover, the soil solid waste is directly exposed to the outside after sampling, and the sampled soil solid waste sample is easily contaminated, thereby affecting the error of soil solid waste organic matter detection. For this reason, it is necessary to design a new technical solution to solve it. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet actual needs, and provide a sampling device for collecting volatile organic matter in soil solid waste for detection, so as to solve the technical problems that the current soil solid waste sampling can only take one sample each time, the practicality of the sampling device is poor, and the soil solid waste is directly exposed to the outside after sampling, and the sampled soil solid waste samples are easily contaminated, thereby affecting the error of soil solid waste organic matter detection.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows: a sampling device for collecting volatile organic compounds from soil solid waste is designed, comprising a bottom ring, four fixing rods are fixedly connected to the top of the bottom ring, a fixing plate and a top plate are installed between the four fixing rods, a rotating plate is rotatably connected to the middle of one end of the top plate close to the fixing plate, a servo motor is installed on one side of one end of the rotating plate close to the fixing plate, a connecting rod is fixedly connected to the driving end of the servo motor, connecting holes are provided on both sides of the connecting rod, fixing columns are slidably connected in the two connecting holes, and springs are fixedly connected to the inner cavities of the two connecting holes and the two fixing columns respectively; four protective cylinders are fixedly connected to the bottom of the fixing plate, sampling cylinders are arranged in the four protective cylinders, external threaded tubes are fixedly connected to the tops of the four sampling tubes, the four external threaded tubes all penetrate the fixing plate, and the four external threaded tubes are threadedly connected to the fixing plate, and fixing holes are provided on both sides of the external threaded tubes.

[0006] Preferably, a sealing plug is inserted into the bottom opening of the protective tube, and the sealing plug is elastic.

[0007] Preferably, limiting grooves are provided on both sides of the inner cavity of the connecting hole, limiting blocks are slidably connected in the two limiting grooves, and the two limiting blocks are fixedly connected to the fixing column.

[0008] Preferably, a plurality of saw teeth are installed on the bottom opening of the sampling tube, and the plurality of saw teeth are equidistantly distributed.

[0009] Preferably, both sides of the top of the top plate are fixedly connected with connection blocks, and a cross-shaped handle is rotatably connected between the two connection blocks.

[0010] Preferably, the spring is always in a compressed state, and the elastic force of the spring is greater than the friction force between the fixing column and the connecting hole.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model combines a servo motor, a connecting rod, an externally threaded tube, a rotating disk, a sampling barrel, a connecting hole, a spring, a fixing column, a fixing hole and a protective barrel. The connecting rod is made to correspond to the externally threaded tube by rotating the rotating disk, and then the externally threaded tube is rotated to move upward, thereby squeezing the fixing column and inserting it into the fixing hole to connect the connecting rod and the externally threaded tube. Then, the servo motor is started to drive the externally threaded tube to rotate in the opposite direction to that when connected, thereby driving the sampling barrel to rotate and move downward to insert it into the soil solid waste. Then, the servo motor is started to drive the sampling barrel to rotate in the opposite direction and be stored in the protective barrel, so that the sampling barrel samples the soil solid waste. Then, the fixing column is squeezed to disassemble the connecting rod and the externally threaded tube. Then, the rotating disk is rotated to connect another externally threaded tube accordingly. Then, the above steps are repeated, so that soil solid waste at different positions can be sampled at the same time, thereby improving the practicality of the sampling device.

[0013] 2. The utility model provides a sealing plug. When the soil solid waste sample is stored in the protective tube, the sealing plug is inserted into the bottom opening of the protective tube to seal the sampled soil solid waste, thereby preventing the sampled soil solid waste from being contaminated and affecting the detection results of the soil solid waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the local structure of the connection between the connecting rod and the fixed column of the utility model;

[0016] Figure 3 This is a cross-sectional view of the connection between the fixed plate and the sampling tube of the utility model;

[0017] Figure 4 It is an enlarged view of point A of the utility model;

[0018] In the figure: 1. bottom ring; 11. fixing rod; 12. top plate; 13. fixing plate; 14. rotating plate; 2. external threaded tube; 21. protective tube; 22. sampling tube; 23. sawtooth; 3. servo motor; 31. connecting rod; 4. connecting block; 41. "X" shaped handle; 5. connecting hole; 51. fixing column; 52. spring; 53. limiting groove; 54. limiting block; 6. sealing plug; 7. fixing hole. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0020] Example 1: A sampling device for collecting soil solid waste volatile organic matter detection, see Figures 1 to 4, including a bottom ring 1, the top of the bottom ring 1 is fixedly connected with four fixing rods 11, a fixing disk 13 and a top disk 12 are installed between the four fixing rods 11, the top disk 12 is rotatably connected with a rotating disk 14 in the middle of one end close to the fixing disk 13, a servo motor 3 is installed on one side of the rotating disk 14 close to the fixed disk 13, a driving end of the servo motor 3 is fixedly connected with a connecting rod 31, both sides of the connecting rod 31 are provided with connecting holes 5, the two connecting holes 5 are slidably connected with fixing columns 51, and the inner cavities of the two connecting holes 5 are respectively fixedly connected with the two fixing columns 51, the spring 52 is always in a compressed state, and the elastic force of the spring 52 is greater than the friction force between the fixing column 51 and the connecting hole 5; four protective tubes 21 are fixedly connected to the bottom of the fixed disk 13, sampling tubes 22 are arranged in the four protective tubes 21, the tops of the four sampling tubes 22 are fixedly connected with external threaded tubes 2, and the four external threaded tubes 2 all penetrate the fixed disk 13. , and the four externally threaded tubes 2 are all threadedly connected with the fixing disk 13, and fixing holes 7 are opened on both sides of the externally threaded tube 2. The connecting rod 31 is made to correspond to the externally threaded tube 2 by rotating the rotating disk 14, and then the externally threaded tube 2 is rotated to move it upward, so as to squeeze the fixing column 51 and insert it into the fixing hole 7 to connect the connecting rod 31 with the externally threaded tube 2, and then the servo motor 3 is started to drive the externally threaded tube 2 to rotate in the opposite direction to that when connected, thereby driving the sampling tube 22 to rotate and move downward to insert into the soil solid waste, and then the servo motor 3 is started to drive the sampling tube 22 to rotate in the opposite direction and be stored in the protective tube 21, so that the sampling tube 22 samples the soil solid waste, and then the fixing column 51 is squeezed to disassemble the connecting rod 31 and the externally threaded tube 2, and then the rotating disk 14 is rotated to connect another externally threaded tube 2 accordingly, and then the above steps are repeated, so that soil solid waste at different positions can be sampled at the same time, thereby improving the practicality of the sampling device.

[0021] For details, see Figure 3 A sealing plug 6 is inserted into the bottom opening of the protective tube 21, and the sealing plug 6 is elastic. Through the setting of the sealing plug 6, when the soil solid waste sample is stored in the protective tube 21, the sealing plug 6 is inserted into the bottom opening of the protective tube 21, so as to seal the sampled soil solid waste, thereby preventing the sampled soil solid waste from being contaminated and affecting the detection result of the soil solid waste.

[0022] For further information, see Figure 2 Limiting grooves 53 are provided on both sides of the inner cavity of the connecting hole 5, and limiting blocks 54 are slidably connected in the two limiting grooves 53, and the two limiting blocks 54 are fixedly connected to the fixing column 51. The limiting blocks 54 move the wire in the limiting grooves 53, which not only improves the stability of the fixing column 51 connected to the connecting hole 5, but also limits the fixing column 51 to prevent the fixing column 51 from detaching from the connecting hole 5 and affecting the connection between the connecting rod 31 and the external threaded pipe 2.

[0023] It is worth noting that see Figure 3 A plurality of saw teeth 23 are installed on the bottom opening of the sampling tube 22, and the plurality of saw teeth 23 are evenly distributed. Through the arrangement of the saw teeth 23, it is convenient for the sampling tube 22 to be rotated and inserted into the soil solid waste to sample the soil solid waste.

[0024] It is worth noting that see Figure 1 The top sides of the top plate 12 are fixedly connected with connecting blocks 4, and a "X"-shaped handle 41 is rotatably connected between the two connecting blocks 4. The "X"-shaped handle 41 is provided to facilitate personnel to hold and carry the sampling device.

[0025] In addition, the components designed in the present invention are all universal standard parts or components known to technical personnel in the field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in the field, and there is no need to elaborate. The content protected by the present invention does not involve improvements to internal structures and methods.

[0026] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A sampling device for collecting volatile organic matter from soil solid waste for detection, comprising a bottom ring (1), characterized in that: Four fixing rods (11) are fixedly connected to the top of the bottom ring (1), a fixing plate (13) and a top plate (12) are installed between the four fixing rods (11), a rotating plate (14) is rotatably connected to the middle of one end of the top plate (12) close to the fixing plate (13), a servo motor (3) is installed on one side of one end of the rotating plate (14) close to the fixing plate (13), a connecting rod (31) is fixedly connected to the driving end of the servo motor (3), connecting holes (5) are provided on both sides of the connecting rod (31), fixing columns (51) are slidably connected to the two connecting holes (5), and springs (52) are fixedly connected between the inner cavities of the two connecting holes (5) and the two fixing columns (51), respectively; Four protective tubes (21) are fixedly connected to the bottom of the fixed plate (13), and sampling tubes (22) are arranged in the four protective tubes (21). The tops of the four sampling tubes (22) are fixedly connected to external threaded tubes (2), and the four external threaded tubes (2) penetrate the fixed plate (13), and the four external threaded tubes (2) are threadedly connected to the fixed plate (13), and fixing holes (7) are provided on both sides of the external threaded tubes (2).

2. A sampling device for collecting volatile organic compounds from soil solid waste as claimed in claim 1, characterized in that: A sealing plug (6) is inserted into the bottom opening of the protective tube (21), and the sealing plug (6) is elastic.

3. A sampling device for collecting volatile organic compounds from soil solid waste for detection as claimed in claim 1, characterized in that: Limiting grooves (53) are provided on both sides of the inner cavity of the connection hole (5), and limiting blocks (54) are slidably connected in the two limiting grooves (53), and the two limiting blocks (54) are fixedly connected to the fixing column (51).

4. A sampling device for collecting volatile organic compounds from soil solid waste for detection as claimed in claim 1, characterized in that: A plurality of saw teeth (23) are installed on the bottom opening of the sampling tube (22), and the plurality of saw teeth (23) are distributed at equal intervals.

5. A sampling device for collecting volatile organic compounds from soil solid waste for detection as claimed in claim 1, characterized in that: Both sides of the top of the top plate (12) are fixedly connected to connection blocks (4), and a cross-shaped handle (41) is rotatably connected between the two connection blocks (4).

6. A sampling device for collecting volatile organic compounds from soil solid waste as claimed in claim 1, characterized in that: The spring (52) is always in a compressed state, and the elastic force of the spring (52) is greater than the friction force between the fixing column (51) and the connecting hole (5).

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