Soil sampling device for environment detection

Abstract

The invention discloses a soil sampling device for environment detection, and relates to the field of environment detection.The soil sampling device comprises a sampling mechanism for sampling soil based on the precession principle and a soil treatment mechanism for crushing and collecting the sampled soil, and the sampling mechanism comprises a first walking support, a precession driving part and a sampling barrel; wherein the first walking support is a vertical support with lifting and walking functions, and the first walking support is provided with a screw-in driving piece; the soil treatment mechanism is arranged on one side of the sampling mechanism and connected with the sampling mechanism through a sliding module, the soil treatment mechanism comprises a second walking support, a sample receiving disc, a crushing module and a discharging channel, and the second walking support and the first walking support are consistent in structure and are arranged in a mirror image mode; according to the soil sampling device, integrated soil sampling treatment equipment is constructed through the sampling mechanism and the soil treatment mechanism, and full-process operation of automatic precession collection, crushing and refining and sample loading and storage of soil samples can be realized.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of environmental detection, and particularly relates to a soil sampling device for environmental detection. BACKGROUND

[0002] Soil, as an important component of the ecological system, carries a large number of ecological functions and environmental information. In the field of environmental monitoring, soil quality is directly related to the safety of groundwater, the quality of crops, and the health and stability of the entire ecological system. For example, heavy metal pollution in soil can contaminate groundwater through infiltration, thereby threatening human drinking water safety; crops grown in contaminated soil can accumulate harmful substances, which can be transmitted through the food chain to endanger human health. In agricultural research, the fertility, pH, texture, and other characteristics of soil have a decisive influence on the growth, yield, and quality of crops. Precise understanding of the various indicators of soil can provide scientific basis for rational fertilization, irrigation, selection of crop varieties, and other agricultural measures, thereby improving agricultural production efficiency and quality. In the field of geological exploration, analysis of soil samples helps to understand the distribution and reserves of underground mineral resources, providing important clues for resource development. Therefore, accurate and efficient acquisition of soil samples is of great significance to environmental monitoring, agricultural research, and geological exploration.

[0003] Current technical solutions for soil sampling include:

[0004] 1) A soil sample efficient sampling mechanism is disclosed in CN119394706A. In this patent application, a walking trolley body for soil sample sampling, a sampling cylinder, and an electric lifting column fixedly installed on the upper surface of the walking trolley body for driving the sampling cylinder to lift are included. The electric lifting column is externally provided with an upper mounting table and a lower mounting table distributed upward and downward. A sampling cylinder driving rotation mechanism is arranged on the lower mounting table. A vibration mechanism and a water delivery mechanism are arranged on the lower mounting table. A first transmission structure and a second transmission structure linked with the vibration mechanism and the water delivery mechanism are installed on the bottom output shaft of the double-shaft motor. This soil sample efficient sampling mechanism links the push block and the knocking method for use, and then cooperates with the spraying function to improve the discharging of the sample and to flush the inner wall of the sampling cylinder, thereby significantly improving the sampling efficiency, reducing the sampling time and labor cost, and realizing the advantages of high efficiency, convenience, and strong applicability.

[0005] 2) The publication number CN118961282A discloses a soil quality evaluation device and its use method, and in this patent application, there are fixing frames and sliding rails, etc.; two fixing frames are fixedly connected with sliding rails. The first limiting plate contacts the inner wall of the sampling cylinder by rotating the three levers, and the soil sample is divided by the knife blade on the first limiting plate, and the first limiting plate stretches the elastic cloth to form a plugging structure, thereby plugging the lower part of the sampling cylinder, avoiding the soil sample in the sampling cylinder falling back into the soil when the sampling cylinder and the limiting cylinder are separated from the soil, affecting the collection of the soil sample and the subsequent evaluation of the soil; the spiral stirrer realizes the collection and layering of the mixed soil sample, avoiding the need for additional mixing of soil samples at different depths during subsequent soil analysis, thereby saving the time for subsequent mixing of soil samples and facilitating subsequent analysis and evaluation of different soil samples.

[0006] In the soil sample high-efficiency sampling mechanism of the above publication number CN119394706A, the mechanized drilling, auxiliary discharging and inner wall cleaning of the soil sample are realized by setting the electric lifting column, the rotary driving mechanism and the vibration and water conveying mechanism, which significantly improves the sampling efficiency and reduces the labor cost, but this scheme still has the following problems, which are embodied in: the soil sample after sampling still needs to be taken out manually, and automatic processing and sample loading are not realized, which increases the risk of sample contamination; and in the soil quality evaluation device of publication number CN118961282A, the layering plugging and mixing control of the soil sample are realized by setting the sliding rail, the fixing frame, the limiting plate and the knife blade structure, which avoids the backfall of the soil sample during sampling and supports a certain degree of soil sample mixing or layering retention, but this scheme still has the following problems, which are embodied in: the overall structure of the device is complex and the function is single, and the full-process automation from sampling, crushing to sample loading cannot be realized.

[0007] Therefore, it has become a technical problem to be solved in the fields of soil monitoring, agricultural research and geological exploration to develop a full-process integrated sampling and processing device capable of realizing automatic drilling, in-situ crushing, uniform refinement, automatic sample loading and storage of soil. SUMMARY

[0008] The purpose of the present application is to provide a soil sampling device for environmental detection to solve the problems of easy contamination caused by manual sampling after soil sampling, single function of the device which cannot realize full-process automation, and low sampling and processing efficiency in the prior art.

[0009] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a soil sampling device for environmental detection, comprising a sampling mechanism for sampling soil based on the principle of precession and a soil processing mechanism for crushing and collecting the sampled soil, wherein:

[0010] The sampling mechanism comprises a first walking support, a screwing driving element and a sampling cylinder, wherein the first walking support is a vertical support with lifting and walking functions, the screwing driving element is arranged on the first walking support, the sampling cylinder is connected to the screwing driving element at the shaft end, the sampling cylinder is a hollow column with an open bottom, and grinding teeth are arranged on the edge of the open bottom of the sampling cylinder;

[0011] The soil treatment mechanism is arranged on one side of the sampling mechanism and is connected to the sampling mechanism through a sliding module, the soil treatment mechanism comprises a second walking support, a sample receiving disc, a crushing module and a discharging channel, the second walking support is identical in structure to the first walking support and is arranged in a mirror image, and the sample receiving disc is arranged on the second walking support; the sample receiving disc is a hollow inverted circular table structure with an open upper end and a closed lower end, a crushing driving element is arranged on the bottom side of the sample receiving disc, and a crushing module is arranged on the sample receiving disc and connected to the shaft end of the crushing driving element.

[0012] Preferably, the crushing module comprises a crushing rod and long crushing spirals and crushing blades arranged on the upper and lower ends of the crushing rod. The crushing module can be moved to a designated position directly below the sampling cylinder under the cooperation of the sliding module and the power sliding seat of the second walking support, and the long crushing spirals on the crushing module can extend into the sampling cylinder. During the rotation of the long crushing spirals, strong axial propulsion force and radial crushing force can be generated on the soil sample, the strong axial propulsion force can help to penetrate into the interior of the soil sample, and the radial crushing force can effectively crush large soil blocks and gradually disintegrate the closely combined soil blocks into small blocks. The sample receiving disc can accurately receive the soil samples that are loosened and fallen off after being preliminarily crushed by the long crushing spirals, preventing the soil samples from scattering everywhere. The crushing blades on the bottom side of the sample receiving disc further refine the soil particles, and the soil processed by the long crushing spirals is further processed by the crushing blades to grind relatively large particles into smaller particles. Through the synergistic effect of the long crushing spirals and the crushing blades, the efficiency and uniformity of soil crushing are greatly improved, and the particle size of the obtained soil sample meets the analysis requirements.

[0013] Preferably, the discharging channel is connected to the bottom side of the sample receiving disc, and auger blades driven by a discharging driving element are arranged in the discharging channel. The discharging channel is closely connected to the bottom side of the sample receiving disc, forming a continuous discharging path, which avoids the scattering and residue of the soil during the discharging process, and ensures the cleanliness and efficiency of the entire sampling and processing process.

[0014] Preferably, the sliding module comprises a top rail, a damping rod and a gear slide base, the top rail is transversely arranged and connected with the upper end of the first walking support, the damping rod is connected with the first walking support and the bottom side of the second walking support, a rack is arranged on the inner side of the top rail, the gear slide base is connected with the upper end of the second walking support, the gear slide base is engaged with the rack on the inner side of the top rail, and the gear slide base moves along the length direction of the top rail to drive the second walking support to approach or move away from the first walking support. The sliding module is used for accurately regulating and controlling the distance between the sampling mechanism and the processing mechanism. When the sampling mechanism is lifted after completing sampling, the gear slide base moves to make the second walking support approach, so that the soil processing mechanism is in position, and then the long crushing spiral of the crushing module accurately extends into the sampling cylinder to efficiently crush the soil sample stuck therein, so that the sample is smoothly dropped into the sample receiving disc.

[0015] Preferably, the first walking support and the second walking support each comprise a base frame, a rear wheel frame, a side support frame, a vertical rail and a power slide base, the end of the base frame is vertically provided with the vertical rail, the rear side of the base frame is provided with the rear wheel frame, one end of the side support frame is hingedly connected with the rear wheel frame, and the other end is hingedly connected with the middle of the back side of the vertical rail.

[0016] Preferably, the vertical rail is a straight linear guide rail with a limiting groove, the power slide base is slidably arranged on the front side of the vertical rail, and the rotating driving member and the sample receiving disc are respectively arranged on the power slide bases of the first walking support and the second walking support.

[0017] Preferably, the soil processing mechanism further comprises a sample loading mechanism, the sample loading mechanism comprises a base, a placing support, a sample loading bottle and a bottle turning support, the base is connected with the side of the vertical rail on the first walking support through a support arm, a groove is formed in the base, and the placing support is mounted on the base through a frame.

[0018] Preferably, the placing support is provided with an arc-shaped placing channel, a plurality of sample loading bottles are arranged in the placing channel in a transverse manner, and the bottle turning support is arranged on one side of the placing channel; the bottle turning support comprises an inner support, an outer support and a bottle turning plate, the outer support is connected with the base, the outer support comprises arc-shaped plates connected at the ends and a guide rod, slots are formed in the arc-shaped plates, the inner support is rotatably arranged on the inner side of the outer support through a rotating rod, and a steering wheel is arranged on one side of the outer support to drive the rotating rod to rotate.

[0019] Preferably, the rotating rod is connected with the bottle turning plate at the shaft end, the bottle turning plate rotates with the inner support, and the sample loading bottles arranged in the placing channel are turned over and guided to the guide rod.

[0020] Preferably, a micro conveyor belt and a containing bin are further arranged on the base, the front end of the micro conveyor belt extends to the bottom side of the guide rod, and the rear end of the micro conveyor belt extends to the inner side of the containing bin. The sample loading bottles arranged in the placing channel are turned over to a vertical state by the bottle turning support, the sample loading bottles receive the soil samples discharged from the discharging channel, and after the sample loading is completed, the sample loading bottles are guided to the containing bin by the micro conveyor belt. The sample loading mechanism is arranged to realize the sample loading operation without manual operation.

[0021] Compared with the prior art, the present application has the following beneficial effects: the present application constructs an integrated soil sampling and processing device by a sampling mechanism and a soil processing mechanism, can realize automatic spiral collection, crushing and refinement, and sample loading and storage of soil samples, and does not need manual step-by-step operation and secondary transfer processing, further improving sampling efficiency and detection accuracy. The specific technical effects include the following:

[0022] 1. The sampling mechanism adopts a spiral driving member to drive a sampling cylinder with grinding teeth at the bottom to perform spiral sampling, which can quickly penetrate the soil layer to obtain soil samples, the grinding teeth design effectively reduces the sampling resistance and ensures the sample integrity, and the power slide moves along the vertical rail to realize accurate control of the sampling depth.

[0023] 2. The soil processing mechanism directly extends into the inside of the sampling cylinder through a long crushing spiral, rotates and crushes the jammed sample to make it loose and fall off, completely avoids the complicated operation of manual knocking and the possible pollution or damage to the sample, and protects the sampling cylinder structure from violent impact.

[0024] 3. The soil processing mechanism not only solves the sample jamming problem, but also realizes automatic collection of the crushed sample through the cooperative work of the sample receiving disc and the crushing module. The long crushing spiral and the crushing blade perform double refinement on the sample to ensure the sample uniformity and provide high-quality samples for subsequent detection and analysis.

[0025] 4. The sample loading mechanism adopts an arc-shaped placement channel to batch store empty sample bottles, a bottle turning support drives a bottle turning plate to turn the sample bottles to a receiving position, realizes seamless connection with the discharge channel, and the soil sample directly falls into the bottle. After sample loading is completed, the micro conveyor belt automatically transports the sample bottles to the containing bin, without manual carrying or intervention throughout the process, and eliminates the sample pollution risk. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0027] Figure 1 It is a structural schematic diagram of the first embodiment of the present application.

[0028] Figure 2 It is a structural schematic diagram of the sampling mechanism in the first embodiment of the present application.

[0029] Figure 3 It is a structural schematic diagram of the first walking support and the sample receiving disc in the first embodiment of the present application.

[0030] Figure 4Structure diagram of the sample receiving disc, crushing module and discharge channel in the embodiment one of the present application;

[0031] Figure 5 Structure diagram of the sliding module in the embodiment one of the present application;

[0032] Figure 6 Structure diagram of the embodiment two of the present application;

[0033] Figure 7 Structure diagram of the sample loading mechanism in the embodiment two of the present application.

[0034] In the figure:

[0035] 1, sample loading mechanism; 101, first walking support; 102, rotating drive member; 103, sampling cylinder;

[0036] 2, soil treatment mechanism; 201, second walking support; 202, sample receiving disc; 203, crushing drive member; 204, long crushing spiral; 205, crushing blade; 206, discharge channel;

[0037] 3, sliding module; 301, top rail; 302, damping rod; 303, gear slide;

[0038] 4, sample loading mechanism; 401, base; 402, placing support; 403, sample loading bottle; 404, inner support; 405, outer support; 406, bottle turning plate; 407, containing bin;

[0039] a, base frame; b, rear wheel frame; c, side support frame; d, vertical rail; e, power slide. DETAILED DESCRIPTION

[0040] In order to make the skilled in the art better understand the technical solutions of the present application, the present application will be further described in detail below in combination with the drawings.

[0041] As shown in the accompanying drawings Figure 1 to the accompanying Figure 5 drawings:

[0042] Embodiment one: the application provides a soil sampling device for environmental detection, comprising a sampling mechanism 1 based on the principle of screwing to sample soil and a soil processing mechanism 2 for crushing and collecting the sampled soil, wherein: the sampling mechanism 1 comprises a first walking support 101, a screwing driving part 102 and a sampling cylinder 103, wherein the first walking support 101 is a vertical support with lifting and walking functions, the screwing driving part 102 is arranged on the first walking support 101, the screwing driving part 102 is connected to the sampling cylinder 103 at the shaft end, the sampling cylinder 103 is a hollow column with an open bottom, and grinding teeth are arranged on the edge of the open bottom of the sampling cylinder 103; the soil processing mechanism 2 is arranged on one side of the sampling mechanism 1 and is connected to the sampling mechanism 1 through a sliding module 3, the soil processing mechanism 2 comprises a second walking support 201, a sample receiving disc 202, a crushing module and a discharge channel 206, the second walking support 201 is identical in structure to the first walking support 101 and is arranged in a mirror image, and the sample receiving disc 202 is arranged on the second walking support 201; the sample receiving disc 202 is a hollow inverted circular table structure with an open upper end and a closed lower end, a crushing driving part 203 is arranged on the bottom side of the sample receiving disc 202, and the crushing module is arranged on the sample receiving disc 202 and connected to the shaft end of the crushing driving part 203.

[0043] 1. In an embodiment of the application, the crushing module comprises a crushing rod and a long crushing spiral 204 and a crushing blade 205 arranged on the upper and lower ends of the crushing rod. The crushing module can move to a specified position directly below the sampling cylinder 103 under the cooperation of the sliding module 3 and the power sliding seat e on the second walking support 201, and the long crushing spiral 204 on the crushing module can extend into the sampling cylinder 103. During the rotation of the long crushing spiral 204, a strong axial pushing force and a radial crushing force can be generated on the soil sample, the strong axial pushing force can help to penetrate into the interior of the soil sample, and the radial crushing force can effectively crush larger soil blocks and gradually disintegrate the closely combined soil blocks into small blocks. The sample receiving disc 202 can accurately receive the soil sample that is loosened and falls off after being preliminarily crushed by the long crushing spiral 204, preventing the soil sample from scattering everywhere. The crushing blade 205 on the bottom side of the sample receiving disc 202 further refines the soil particles, and the soil processed by the long crushing spiral 204 is subjected to secondary processing to further grind relatively larger particles into smaller particles. Through the synergistic effect of the long crushing spiral 204 and the crushing blade 205, the efficiency and uniformity of soil crushing are greatly improved, and the particle size of the obtained soil sample meets the analysis requirements.

[0044] 2. In an embodiment of the application, the discharge channel 206 is connected to the bottom side of the sample receiving disc 202, and auger blades driven by a discharge driving part are arranged in the discharge channel 206. The discharge channel 206 is closely connected to the bottom side of the sample receiving disc 202, forming a continuous discharge path, which avoids the scattering and residue of soil during the discharging process, and ensures the cleanliness and efficiency of the whole sampling and processing process.

[0045] 3、In an embodiment of the present application, the sliding module 3 comprises a top rail 301, a damping rod 302 and a gear slide 303, the top rail 301 is transversely arranged and connected with the upper end of the first walking support 101, the damping rod 302 is connected with the bottom side of the first walking support 101 and the second walking support 201, a rack is arranged inside the top rail 301, the gear slide 303 is connected with the upper end of the second walking support 201, the gear slide 303 is engaged with the rack inside the top rail 301, and the gear slide 303 moves along the length direction of the top rail 301 to drive the second walking support 201 to approach or move away from the first walking support 101. The sliding module 3 is used for accurately regulating and controlling the distance between the sampling mechanism and the soil treatment mechanism, when the sampling mechanism 1 is completed sampling and moves upward, the gear slide 303 moves to make the second walking support 201 close, so that the soil treatment mechanism 2 is in place, and then the long crushing spiral 204 of the crushing module accurately extends into the sampling cylinder 103 to efficiently crush the soil sample stuck therein, and ensures that the sample is smoothly dropped into the sample receiving disc 202.

[0046] 4、In an embodiment of the present application, the first walking support 101 and the second walking support 201 each comprise a bottom frame a, a rear wheel frame b, a side support frame c, a vertical rail d and a power slide e, the vertical rail d is vertically arranged at the end of the bottom frame a, the rear wheel frame b is arranged at the rear side of the bottom frame a, and the side support frame c is hingedly connected at one end with the rear wheel frame b and at the other end with the middle of the back side of the vertical rail d.

[0047] 5、In an embodiment of the present application, the vertical rail d is a straight linear guide rail with a limiting groove, the power slide e is slidably arranged at the front side of the vertical rail d, and the rotating drive 102 and the sample receiving disc 202 are respectively arranged on the power slide e of the first walking support 101 and the second walking support 201.

[0048] The embodiment one cooperates the sampling mechanism 1 and the soil treatment mechanism 2 to construct an environmental detection soil sampling device integrating soil rotating collection, efficient crushing and orderly collection, can realize full-process automatic operation of soil sample collection and treatment, and ensures that the obtained soil sample has uniform particle size and high completeness, which meets the requirements of environmental detection and analysis.

[0049] When working: first, the first walking support 101 drives the screw-in driving part 102 and the sampling cylinder 103 to move to the target sampling point, and the sampling cylinder 103 is adjusted to the appropriate height along the lifting of the power slide e along the vertical rail d, and then the screw-in driving part 102 is started to drive the sampling cylinder 103 to rotate and advance downward, and the soil is sampled by the grinding teeth on the bottom opening edge of the sampling cylinder 103, and the soil is completely retained in the sampling cylinder 103. After sampling is completed, the first walking support 101 lifts the sampling cylinder 103 to a certain height. At this time, the gear slide 303 of the sliding module 3 moves along the inner side rack of the top rail 301, and drives the second walking support 201 to approach the first walking support 101, so that the soil treatment mechanism 2 is positioned to the specified position directly below the sampling cylinder 103. Then, the crushing module moves under the cooperation of the power slide e and the sliding module 3, and the long crushing screw 204 on the crushing module accurately extends into the inside of the sampling cylinder 103, and the long crushing screw 204 rotates to generate strong axial pushing force and radial crushing force, the axial pushing force helps to penetrate into the inside of the soil sample, and the radial crushing force effectively crushes larger soil blocks, gradually disintegrates the closely combined soil blocks into small blocks, and makes the soil sample loose and fall off to the sample receiving disc 202. After the sample receiving disc 202 accurately receives the soil sample, the crushing blades 205 on the bottom side of the sample receiving disc 202 are further refined under the driving of the crushing driving part 203, and the soil treated by the long crushing screw 204 is processed twice, and the relatively larger particles are further ground into smaller particles, which greatly improves the efficiency and uniformity of soil crushing. After crushing is completed, the auger blades in the discharge channel 206 are driven to rotate by the discharge driving part, the soil sample in the sample receiving disc 202 is sequentially transported out along the continuous discharge path, the soil is prevented from scattering and remaining during the discharging process, and the cleanliness and efficiency of the whole sampling and processing process are ensured.

[0050] As shown in the accompanying drawings Figure 6 to the accompanying drawings Figure 7 :

[0051] Embodiment two: the embodiment is basically the same as the above embodiment, and the difference lies in that the soil treatment mechanism 2 further comprises a sample loading mechanism 4, the sample loading mechanism 4 comprises a base 401, a placing support 402, a sample loading bottle 403 and a bottle turning support, the base 401 is connected to the lateral side of the vertical rail d on the first walking support 101 through a support arm, a groove is formed in the base 401, and the placing support 402 is installed on the base 401 through a rack.

[0052] 1、In an embodiment of the present application, the placing support 402 is provided with an arc-shaped placing channel, and a plurality of sample bottles 403 are arranged in the placing channel in a transverse manner, and a bottle turning support is arranged on one side of the placing channel; the bottle turning support comprises an inner support 404, an outer support 405 and a bottle turning plate 406, the outer support 405 is connected with the base 401, the outer support 405 comprises arc-shaped plates connected at ends, and a guide rod, and the arc-shaped plates are provided with slots, the inner support 404 is rotatably installed on the inner side of the outer support 405 through a rotating rod, and a rudder (not shown in the figure) for driving the rotating rod to rotate is arranged on one side of the outer support 405.

[0053] 2、In an embodiment of the present application, the rotating rod is connected with the bottle turning plate 406 at an axial end, the bottle turning plate 406 rotates with the inner support 404, and the sample bottles 403 arranged in the placing channel are turned over and guided to the guide rod.

[0054] 3、In an embodiment of the present application, the base 401 is further provided with a micro conveying belt (not shown in the figure) and a containing bin 407, the front end of the micro conveying belt extends to the bottom side of the guide rod, and the rear end of the micro conveying belt extends to the inner side of the containing bin 407. The sample bottles 403 arranged in the placing channel are turned over to a vertical state by the bottle turning support, the sample bottles 403 receive the soil samples discharged from the discharging channel 206, and after the sampling is completed, the sample bottles 403 are guided to the containing bin 407 by the micro conveying belt, and the setting of the sampling mechanism 4 can realize the sampling operation of the sample without manual operation.

[0055] Working principle:

[0056] In the embodiment two, the sampling mechanism 4 is additionally provided on the basis of the embodiment one, and the sampling mechanism 1, the soil treatment mechanism 2 and the sampling mechanism 4 jointly constitute an environmental detection soil sampling device integrating soil rotating collection, efficient crushing, orderly collection and automatic sampling, can realize the full-flow automatic operation of the soil sample from collection to sampling, greatly reduces the manual intervention, improves the sampling efficiency and accuracy, and meets the requirements of environmental detection and analysis.

[0057] When working: first, the first walking support 101 drives the screw-in driving part 102 and the sampling cylinder 103 to move to the target sampling point, and the sampling cylinder 103 is adjusted to the appropriate height along the vertical rail d through the power slide e, then the screw-in driving part 102 is started, driving the sampling cylinder 103 to rotate and advance downward, using the grinding teeth on the bottom opening edge of the sampling cylinder 103 to perform screw-in sampling on the soil, and retaining the soil in the sampling cylinder 103. After sampling is completed, the first walking support 101 lifts the sampling cylinder 103 to a certain height. At this time, the gear slide 303 of the sliding module 3 moves along the inner side rack of the top rail 301, driving the second walking support 201 to approach the first walking support 101, so that the soil treatment mechanism 2 is positioned at the specified position directly below the sampling cylinder 103. Then, the breaking module moves under the cooperation of the power slide e and the sliding module 3, and the long breaking spiral 204 on the breaking module accurately extends into the sampling cylinder 103, and the long breaking spiral 204 rotates to generate strong axial pushing force and radial breaking force, so that the soil sample is loosened and falls off to the sample receiving disc 202. The breaking blades 205 on the bottom side of the sample receiving disc 202 further refine the soil particles, improving the breaking efficiency and uniformity. After breaking is completed, the auger blades in the discharge channel 206 are driven to rotate by the discharge driving part, so that the soil sample in the sample receiving disc 202 is transported along the continuous discharge path to the sample loading mechanism 4. In the sample loading mechanism 4, a plurality of sample loading bottles 403 are arranged transversely in the placing channel in the initial state. When sample loading is needed, the steering wheel drives the rotating rod to rotate, driving the inner support 404 and the bottle turning plate 406 to rotate, and the bottle turning plate 406 turns and guides one sample loading bottle 403 in the placing channel, so that the sample loading bottle 403 is in a vertical state, thereby receiving the soil sample output from the discharge channel 206. At the same time, the inner support 404 blocks the opening of the placing channel at this time, preventing other sample loading bottles 403 from accidentally sliding out. When the sample loading bottle 403 completes sample loading, the bottle turning plate 406 is turned again to prepare for taking the next sample loading bottle 403, and at this time the inner support 404 is reversely rotated under the drive of the steering wheel, so that the opening of the placing channel is no longer limited, and the bottle turning plate 406 holds the next sample loading bottle 403 to be loaded, and repeats the above turning action. After sample loading is completed, the miniature conveyor belt transports the sample loading bottle 403 to the inside of the containing bin 407, completing the automatic sample loading process of the soil sample without manual operation of the staff.

[0058] The foregoing merely describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present application.

Claims

1. A soil sampling device for environmental monitoring, comprising a sampling mechanism (1) for sampling soil based on the principle of rotation and a soil processing mechanism (2) for crushing and collecting the sampled soil, characterized in that: The sampling mechanism (1) includes a first walking support (101), a screw drive (102) and a sampling cylinder (103). The first walking support (101) is a vertical support with lifting and walking functions. The screw drive (102) is installed on the first walking support (101). The shaft end of the screw drive (102) is connected to the sampling cylinder (103). The sampling cylinder (103) is a hollow column with an open bottom. The bottom opening edge of the sampling cylinder (103) is provided with grinding teeth. The soil treatment mechanism (2) is configured on one side of the sampling mechanism (1) and connected to the sampling mechanism (1) through the sliding module (3). The soil treatment mechanism (2) includes a second walking support (201), a sample receiving plate (202), a crushing module and a discharge channel (206). The second walking support (201) has the same structure as the first walking support (101) and is set in a mirror image. The sample receiving plate (202) is installed on the second walking support (201). The sample receiving plate (202) is a hollow inverted frustum structure with an open top and a closed bottom. A crushing drive component (203) is installed on the bottom side of the sample receiving plate (202). A crushing module connected to the shaft end of the crushing drive component (203) is provided on the sample receiving plate (202).

2. The soil sampling device for environmental monitoring according to claim 1, characterized in that: The crushing module includes a crushing rod and long crushing spirals (204) and crushing blades (205) distributed at the upper and lower ends of the crushing rod. The discharge channel (206) is connected to the bottom side of the sample receiving plate (202). The discharge channel (206) is equipped with auger blades driven by the discharge driving component.

3. A soil sampling device for environmental monitoring according to claim 1, characterized in that: The sliding module (3) includes a top rail (301), a damping rod (302), and a gear slide (303). The top rail (301) is arranged laterally and is connected to the upper end of the first traveling bracket (101). A rack is provided on the inner side of the top rail (301). The gear slide (303) is connected to the upper end of the second traveling bracket (201). The gear slide (303) meshes with the rack on the inner side of the top rail (301). The gear slide (303) moves along the length of the top rail (301) to drive the second traveling bracket (201) to approach or move away from the first traveling bracket (101).

4. A soil sampling device for environmental monitoring according to claim 1, characterized in that: The first traveling support (101) and the second traveling support (201) both include a base frame (a), a rear wheel frame (b), a side support frame (c), a vertical rail (d), and a power slide (e). The vertical rail (d) is vertically installed at the end of the base frame (a), and the rear wheel frame (b) is installed on the rear side of the base frame (a). One end of the side support frame (c) is hinged to the rear wheel frame (b), and the other end is hinged to the middle of the back side of the vertical rail (d).

5. A soil sampling device for environmental monitoring according to claim 4, characterized in that: The vertical rail (d) is a linear guide rail with a limiting groove. The front side of the vertical rail (d) is slidably mounted with a power slide (e). The rotary drive (102) and the sample receiving plate (202) are respectively mounted on the power slide (e) of the first traveling bracket (101) and the second traveling bracket (201).

6. A soil sampling device for environmental monitoring according to claim 1, characterized in that: The soil treatment mechanism (2) also includes a sample loading mechanism (4), which includes a base (401), a placement bracket (402), a sample bottle (403), and a bottle-turning bracket. The base (401) is laterally connected to the vertical rail (d) on the first traveling bracket (101) via a support arm. A groove is provided on the base (401), and the placement bracket (402) is installed on the base (401) via a frame.

7. A soil sampling device for environmental monitoring according to claim 6, characterized in that: The placement bracket (402) is provided with an arc-shaped placement channel, and a number of sample bottles (403) arranged horizontally are arranged in the placement channel. A bottle-flipping bracket is provided on one side of the placement channel. The bottle-flipping bracket includes an inner bracket (404), an outer bracket (405) and a bottle-flipping plate (406). The outer bracket (405) is connected to the base (401). The outer bracket (405) includes an arc-shaped plate and a guide rod connected at the end. A slot is provided on the arc-shaped plate. The inner bracket (404) is rotatably installed on the inner side of the outer bracket (405) through a rotating rod. A servo motor for driving the rotating rod is provided on one side of the outer bracket (405).

8. A soil sampling device for environmental monitoring according to claim 7, characterized in that: The rotating rod shaft is connected to a bottle-flipping plate (406). The bottle-flipping plate (406) rotates with the inner support (404) and flips the sample bottles (403) arranged in the placement channel and guides them to the guide rod.

9. A soil sampling device for environmental monitoring according to claim 6, characterized in that: The base (401) is also provided with a miniature conveyor belt and a receiving bin (407). The front end of the miniature conveyor belt extends to the bottom side of the guide rod, and the rear end of the miniature conveyor belt extends to the inside of the receiving bin (407).

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