Rapid collection and pretreatment device for geological survey soil samples

Abstract

The invention relates to the technical field of geological survey, in particular to a geological survey soil sample rapid collection and pretreatment device which comprises a sampling head body, a handle is arranged at the top of the sampling head body, a driving box is arranged at the joint of the sampling head body and the handle, and a driving motor is arranged in the driving box. The sampling head comprises a sampling head body, a rotating disc driven by a driving motor is arranged in the upper end of the sampling head body, rotating blades are symmetrically arranged at the bottom of the rotating disc, a plurality of fixed blades are arranged on the inner wall of the sampling head body in a surrounding mode, and a detachable screen is arranged on the lower portion of the sampling head body. According to the rapid collection and pretreatment device for the geological survey soil sample, immediate primary treatment of the sample is achieved through the integrated pre-crushing mechanism, the flexibility and efficiency of field work are improved, meanwhile, the quality and consistency of the sample are guaranteed, and the sampling process is simplified.

Description

Technical Field

[0001] The present invention relates to the technical field of geological surveys, and particularly to a rapid collection and pretreatment device for soil samples in geological surveys. Background Art

[0002] In geological research and environmental monitoring, the collection and pretreatment of soil samples are important steps to obtain accurate data. Soil samples usually need to undergo a series of physical and chemical analyses to evaluate soil quality, pollution levels, and their impact on the ecosystem. In this process, the representativeness of soil samples is crucial. To ensure that the samples can truly reflect the actual conditions of the sampling points, researchers must precisely control parameters such as the particle size distribution and humidity of the samples.

[0003] There is a major problem with existing soil sample collection devices, namely the lack of an effective pre-crushing mechanism. Most existing devices can only complete the basic collection of soil samples. In actual operation, the soil samples collected from the field are often in large chunks and require additional time and tools for pre-crushing before subsequent analysis. This process is not only time-consuming but also may lead to sample loss or external contamination, affecting the accuracy of the final analysis results. At the same time, due to the lack of a pre-crushing function directly integrated into the collection device, the entire sampling process becomes complex and not portable, which is not conducive to field operations. Summary of the Invention

[0004] The purpose of the present invention is to provide a rapid collection and pretreatment device for soil samples in geological surveys to solve the problems in the above background art, namely the lack of an effective pre-crushing mechanism in current soil sample collection devices, complex and non-portable structures, and poor adaptability under different terrain conditions.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A rapid collection and pretreatment device for soil samples in geological surveys, including a sampling head body. A handle is provided at the top of the sampling head body, and a drive box is provided at the connection between the sampling head body and the handle. A drive motor is provided inside the drive box, and a rotating disc driven by the drive motor is provided inside the upper end of the sampling head body. Rotating blades are symmetrically provided at the bottom of the rotating disc, and a plurality of fixed blades are circumferentially provided on the inner wall of the sampling head body. The rotating blades and the fixed blades jointly form a pre-crushing mechanism inside the sampling head body, and a detachable screen is provided at the lower part of the sampling head body. Both ends of the screen are connected to the inner walls on both sides of the sampling head body through buckles.

[0006] Preferably, the fixed blades are uniformly distributed in a strip shape on the inner wall of the sampling head body, and the outer side of the fixed blades is a serrated edge structure.

[0007] Preferably, the positions of the rotary blade and the fixed blade correspond to each other, and cutting edges with a gradient structure are provided on both side edges of the rotary blade.

[0008] Preferably, the inner ends of the buckles are movably connected to both sides of the screen through hinges, and clamping grooves matching the buckle structure are formed on the outer walls of both sides at the lower end of the sampling head body.

[0009] Preferably, an annular guide block is provided on the top of the rotary disc, and an annular guide seat matching the annular guide block structure is provided on the top inner wall of the sampling head body.

[0010] Preferably, a rubber friction ring is provided on the outer wall of the edge of the rotary disc, and the outer side of the rubber friction ring is attached to the inner wall of the sampling head body.

[0011] Preferably, a layer of rubber protective sleeve is wrapped on the outer wall of the sampling head body, and a transparent observation window is further provided on one side of the sampling head body.

[0012] Preferably, threaded interfaces are symmetrically provided at the bottom of the rotary disc, and threaded posts matching the threaded interface structure are provided on the top of the rotary blade.

[0013] Preferably, an annular inlay block is provided on the top of the edge of the screen, and an annular inlay groove matching the annular inlay block structure is provided on the edge of the bottom of the sampling head body.

[0014] Preferably, the handle includes a threaded cylinder structure with two segments, and the two-segment threaded cylinders of the handle are connected by a threaded post.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The rapid soil sample collection and pretreatment device for geological survey realizes the instant preliminary treatment of samples through an integrated pre-crushing mechanism, improves the flexibility and efficiency of field work, ensures the quality and consistency of samples, and simplifies the sampling process. Through the design of driving the rotary disc and the rotary blade by a driving motor, combined with the pre-crushing mechanism formed by the fixed blade, the device can effectively break large soil blocks into small particles suitable for analysis, and the screen further ensures the consistency of the sample particle size. This not only reduces the sample preparation time but also reduces the risk of sample contamination from the outside, making the entire sampling process more efficient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a rapid soil sample collection and pretreatment device for geological survey according to the present invention;

[0017] Figure 2 is a schematic structural diagram of the connection bottom of the rotary disc and the sampling head body of a rapid soil sample collection and pretreatment device for geological survey according to the present invention;

[0018] Figure 3 Schematic top view of the screen of a rapid soil sample collection and pretreatment device for geological survey according to the present invention;

[0019] Figure 4 Schematic external view of the sampling head body of a rapid soil sample collection and pretreatment device for geological survey according to the present invention;

[0020] Figure 5 Schematic top view of the connection between the rotating disc and the sampling head body of a rapid soil sample collection and pretreatment device for geological survey according to the present invention.

[0021] In the figure: 1. Sampling head body; 2. Handle; 3. Driving box; 4. Driving motor; 5. Rotating disc; 6. Rotating blade; 7. Fixed blade; 8. Screen; 9. Buckle; 10. Annular guide block; 11. Annular guide seat; 12. Rubber friction ring; 13. Rubber protective sleeve; 14. Threaded interface; 15. Threaded stud; 16. Annular inlay block. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-5The present invention provides a technical solution: a rapid collection and pretreatment device for soil samples in geological surveys, comprising a sampling head body 1, a handle 2 is provided on the top of the sampling head body 1, a driving box 3 is provided at the connection between the sampling head body 1 and the handle 2, the connection between the driving box 3 and the sampling head body 1 and the handle 2 is welded and fixed, a driving motor 4 is fixedly installed inside the driving box 3 by bolts, and a rotating disc 5 driven by the driving motor 4 is provided inside the upper end of the sampling head body 1, the output shaft of the driving motor 4 is fixedly connected to the center of the top of the rotating disc 5, a rotating blade 6 is symmetrically provided at the bottom of the rotating disc 5, and a plurality of fixed blades 7 are welded and fixed around the inner wall of the sampling head body 1, and the rotating blade 6 and the fixed blade 7 are fixedly connected. A pre-crushing mechanism is formed inside the sampling head body 1, and a detachable screen 8 is provided at the lower part of the sampling head body 1. Both ends of the screen 8 are connected to the inner walls of the two sides of the sampling head body 1 through buckles 9. In this structure, when the operator applies force through the handle 2 to insert the sampling head body 1 into the soil for sample collection, the drive motor 4 in the drive box 3 is started, driving the rotating disc 5 and the rotating blades 6 symmetrically arranged at the bottom to rotate at high speed. At the same time, a plurality of fixed blades 7 fixed on the inner wall of the sampling head body 1 cooperate with the rotating blades 6 to form a pre-crushing mechanism, so that the larger block soil entering the sampling head body 1 is quickly cut and crushed into smaller particles, ensuring the consistency and uniformity of the sample. At the same time, after preliminary treatment, the sample is The soil sample can be further screened through the sieve 8 installed at the lower part of the sampling head body 1 to remove large particles of impurities or insufficiently crushed parts, ensuring that the sample is suitable for subsequent analysis. During the whole process, the two ends of the sieve 8 are firmly connected to the inner walls of the sampling head body 1 on both sides through buckles 9, ensuring the stability and reliability of the equipment operation. Overall, the device solves the problem of the lack of an effective pre-crushing processing mechanism in the soil sample collection device in the prior art, avoids additional time consumption and possible sample loss or contamination risks, greatly improves the efficiency of field operations and sample quality, simplifies the sampling process, and enhances portability and flexibility. The fixed blades 7 are evenly distributed on the inner wall of the sampling head body 1 in a strip shape, and the fixed blades 7 are fixed to the inner wall of the sampling head body 1. The outer side of the fixed blade 7 is a serrated edge structure. The fixed blade 7 of this structure can form an efficient cutting cooperation with the rotating blade 6, which utilizes the stability of the fixed blade 7 and the sharpness of the serrated edge to enhance the cutting effect. At the same time, through the dynamic cooperation with the rotating blade 6, the overall performance of the pre-crushing mechanism is effectively improved, thereby providing a more suitable sample particle size for the subsequent screening work of the screen 8, ensuring the quality and consistency of the sample, and improving the efficiency of the entire soil collection and pretreatment process. The position of the rotating blade 6 corresponds to that of the fixed blade 7, and both side edges of the rotating blade 6 are provided with cutting edges of a gradual structure. The gradual structure cutting edge design of the edges of the rotating blade 6 on both sides of this structure, in the process of staggered contact with the fixed blade 7,It can automatically adjust the cutting angle and force according to the different sizes and hardnesses of soil blocks, further realizing the preliminary crushing of larger soil blocks and the fine cutting of smaller particles. The inner ends of the buckles 9 are both movably connected to both sides of the sieve mesh 8 through hinges, and clamping grooves matching the structure of the buckles 9 are provided on the outer walls of both sides at the lower end of the sampling head body 1. With this structure, the buckles 9 can be flexibly opened or closed. That is, when installing the sieve mesh 8, place the sieve mesh 8 at the predetermined position below the sampling head body 1, and then rotate the buckles 9 so that they match the clamping grooves provided on the outer walls of both sides at the lower end of the sampling head body 1 and are firmly locked, ensuring that the sieve mesh 8 is firmly fixed on the sampling head body 1, avoiding loosening or falling off of the sieve mesh 8 due to vibration or other external forces during sample collection and pretreatment. This not only simplifies the installation and disassembly process of the sieve mesh 8, improves the operation efficiency, but also ensures the stability and reliability of the equipment operation. The top of the rotating disk 5 is welded and fixed with an annular guide block 10, and an annular guide seat 11 matching the structure of the annular guide block 10 is welded and fixed on the top inner wall of the sampling head body 1. With this structure, when the rotating disk 5 rotates, it can synchronously drive the annular guide block 10 to run along the track of the annular guide seat 11, providing not only the necessary guiding support, preventing the rotating disk 5 from shifting or shaking during operation, ensuring the precise alignment between the rotating blade 6 and the fixed blade 7, making the cutting process more efficient and stable, and further improving the effect of sample pre-crushing. The outer wall of the edge of the rotating disk 5 is adhesively fixed with a rubber friction ring 12, and the outer side of the rubber friction ring 12 is in contact with the inner wall of the sampling head body 1. With this structure, when the rotating disk 5 rotates at high speed driven by the driving motor 4, the rubber friction ring 12 will be in close contact with the inner wall of the sampling head body 1, forming a dynamic sealing environment, effectively preventing soil particles from escaping into the gap between the top of the rotating disk 5 and the upper end of the sampling head body 1 during pre-crushing. The outer wall of the sampling head body 1 is wrapped with a layer of rubber protective sleeve 13, and a transparent observation window is also provided on one side of the sampling head body 1. With this structure, the rubber protective sleeve 13 can provide an additional protective layer when the equipment accidentally drops or is impacted, reducing damage to the internal structure and extending the service life of the equipment. And the transparent observation window on the sampling head body 1 enables the operator to directly observe the state of the internal sample and the situation of the pretreatment process, and can monitor the working state of the rotating blade 6 and the fixed blade 7 and the situation of soil particles passing through the sieve mesh 8 in real time without interrupting the operation. The bottom of the rotating disk 5 is symmetrically welded and fixed with threaded interfaces 14, and the top of the rotating blade 6 is welded and fixed with threaded posts 15 matching the structure of the threaded interfaces 14. With this structure, the rotating blade 6 can be firmly installed on the rotating disk 5, ensuring that it will not loosen or fall off during high-speed rotation. That is, when the driving motor 4 starts to drive the rotating disk 5 to rotate, the firm connection between the threaded post 15 and the threaded interface 14 ensures that the rotating blade 6 can efficiently transmit the driving force to achieve effective cutting and crushing of the soil.Meanwhile, this detachable design greatly facilitates the replacement and maintenance of the rotary blade 6. The operator can quickly replace different types of rotary blades 6 according to actual needs to adapt to different soil conditions or experimental requirements, improving the flexibility and applicability of the equipment. At the top of the edge of the screen 8, there is an annular inlay block 16. The annular inlay block 16 and the edge of the screen 8 form an integral structure. And at the edge of the bottom of the sampling head body 1, there is an annular inlay opening that matches the structure of the annular inlay block 16. When conducting soil sample collection and pretreatment operations, by accurately inserting the annular inlay block 16 of the screen 8 into the corresponding annular inlay opening at the bottom of the sampling head body 1, the quick positioning and fixation of the screen 8 can be achieved, further avoiding the displacement or loosening of the screen 8 caused by vibration or external forces during the operation. The handle 2 includes a threaded cylinder structure with two segments, and the two segments of the threaded cylinder of the handle 2 are connected by a threaded column. When the operator is working on-site, according to the requirements of personal height or the specific working environment, one of the segments can be easily rotated to extend or shorten the overall length of the handle 2, thus obtaining the best operation comfort and control accuracy.

[0024] Working principle: When using this rapid soil sample collection and pretreatment device for geological surveys, first, according to the requirements of personal height or the specific working environment, adjust the overall length of the handle 2 by rotating the threaded cylinder structure of the two segments of the handle 2 to ensure operation comfort and control accuracy. Then, the operator applies force through the handle 2 to insert the sampling head body 1 into the soil for sample collection. After the collection is completed, then place the screen 8 at the predetermined position below the sampling head body 1 so that the annular inlay block 16 is inserted into the corresponding annular inlay opening at the bottom of the sampling head body 1, and rotate the snap fastener 9 to make it match and firmly lock with the clamping grooves on the outer walls of both sides at the lower end of the sampling head body 1. Next, start the drive motor 4 in the drive box 3. The drive motor 4 drives the rotary disk 5 and the two rotary blades 6 to rotate at high speed. At the same time, several fixed blades 7 cooperate with the rotary blades 6, so that the larger lumps of soil entering the sampling head body 1 are quickly cut and broken into smaller particles. The preliminarily processed soil sample is further screened through the screen 8 installed at the lower part of the sampling head body 1 to remove the large particle impurities or the unfully broken parts, ensuring that the sample meets the requirements for subsequent analysis. After completing the sample collection and pretreatment, the screen 8 can be conveniently disassembled for cleaning or replacement. At the same time, the rotary blade 6 and other components can also be adjusted or maintained according to needs for the next use, thus completing a series of work.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A rapid sampling and pretreatment device for geological survey soil samples, comprising a sampling head body (1), and a handle (2) is provided at the top of the sampling head body (1), characterized in that: A drive box (3) is provided at the connection between the sampling head body (1) and the handle (2). A drive motor (4) is provided inside the drive box (3), and a rotating disk (5) driven by the drive motor (4) is provided inside the upper end of the sampling head body (1). Rotating blades (6) are symmetrically provided at the bottom of the rotating disk (5), and a plurality of fixed blades (7) are circumferentially provided on the inner wall of the sampling head body (1). The rotating blades (6) and the fixed blades (7) jointly form a pre-crushing mechanism inside the sampling head body (1), and a detachable screen (8) is provided at the lower part of the sampling head body (1). Both ends of the screen (8) are connected to the inner walls on both sides of the sampling head body (1) through buckles (9).

2. The rapid sampling and preprocessing device for geological survey soil samples according to claim 1, wherein: The fixed blades (7) are uniformly distributed in a strip shape on the inner wall of the sampling head body (1), and the outer side of the fixed blades (7) is a serrated edge structure.

3. The rapid sampling and pretreatment device for geological survey soil samples according to claim 1, characterized in that: The positions of the rotating blades (6) correspond to those of the fixed blades (7), and cutting edges with a gradient structure are provided on both side edges of the rotating blades (6).

4. A rapid collection and pretreatment device for geological survey soil samples according to claim 1, characterized in that: The inner ends of the buckles (9) are movably connected to both sides of the screen (8) through hinges, and clamping grooves matching the structures of the buckles (9) are provided on the outer walls of both sides at the lower end of the sampling head body (1).

5. A rapid sampling and pretreatment device for geological survey soil samples according to claim 1, characterized in that: An annular guide block (10) is provided at the top of the rotating disk (5), and an annular guide seat (11) matching the structure of the annular guide block (10) is provided on the top inner wall of the sampling head body (1).

6. The rapid sampling and pretreatment device for geological survey soil samples according to claim 1, wherein: A rubber friction ring (12) is provided on the outer wall of the edge of the rotating disk (5), and the outer side of the rubber friction ring (12) is attached to the inner wall of the sampling head body (1).

7. A rapid sampling and pretreatment device for geological survey soil samples according to claim 1, characterized in that: A rubber protective sleeve (13) is wrapped on the outer wall of the sampling head body (1), and a transparent observation window is further provided on one side of the sampling head body (1).

8. A rapid sampling and pretreatment device for geological survey soil samples according to claim 1, characterized in that: Threaded interfaces (14) are symmetrically provided at the bottom of the rotating disk (5), and threaded posts (15) matching the structures of the threaded interfaces (14) are provided at the tops of the rotating blades (6).

9. The rapid sampling and pretreatment device for geological survey soil samples according to claim 1, wherein: An annular inlay block (16) is provided at the top of the edge of the screen (8), and an annular inlay opening matching the structure of the annular inlay block (16) is provided at the edge of the bottom of the sampling head body (1).

10. A rapid sampling and pretreatment device for geological survey soil samples according to claim 1, characterized in that: The handle (2) includes a threaded cylinder structure with two segments, and the two-segment threaded cylinders of the handle (2) are connected through threaded posts.

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