CN118670782B

CN118670782B - A soil ecological environment monitoring device

Info

Publication number: CN118670782B
Application number: CN202410926159.XA
Authority: CN
Inventors: 贾宝珍
Original assignee: Inner Mongolia Hehe Agricultural Technology Co ltd
Current assignee: Inner Mongolia Hehe Agricultural Technology Co ltd
Filing date: 2024-07-11
Publication date: 2025-04-01
Anticipated expiration: 2044-07-11

Abstract

The present invention relates to the technical field of soil detection, and in particular provides a soil ecological environment monitoring device, which comprises a sampling shell, a plurality of blocking mechanisms, a trigger mechanism and an ejection mechanism. A push-out slot is provided on the top of the sampling shell, a sampling cavity is provided on the bottom of the sampling shell, and the top of the sampling cavity is connected with the push-out slot. A plurality of blocking telescopic slots are provided on the lower side wall of the sampling cavity, and the plurality of blocking telescopic slots are arranged in a ring array. The sampling cavity is blocked by a plurality of blocking triangular blocks, so that the integrity of the sampled soil is ensured, and the soil is prevented from being broken or partially falling off during the sampling process, thereby ensuring the accuracy and representativeness of the sampling. The guarantee of the sampling integrity enables the soil at different heights to be detected during the detection, so as to obtain more accurate detection results and improve the accuracy of the detection.

Description

Soil ecological environment monitoring facilities

Technical Field

The invention relates to the technical field of soil detection, in particular to soil ecological environment monitoring equipment.

Background

Soil environment monitoring is an important measure for knowing the quality condition of the soil environment, aims at preventing and controlling soil pollution hazards, and comprises the steps of investigation of the current situation of the soil environment quality, investigation of regional soil environment background values, investigation of soil pollution accidents, dynamic observation of polluted soil and the like, wherein the soil environment monitoring generally comprises the steps of distribution sampling, sample preparation, analysis and test, result characterization, data statistics, quality technical evaluation and the like. At present, in the process of soil detection, the integrity of a soil sample is easily damaged when the soil sample is collected, and the integrity of the soil sample cannot be ensured, so that the detection result detected by the soil sample is influenced, and the reliability of the detection result is lower.

Disclosure of Invention

Based on this, it is necessary to provide a soil ecological environment monitoring device to solve at least one technical problem set forth in the above background art.

In order to achieve the above purpose, the present invention provides the following technical solutions:

The utility model provides a soil ecological environment monitoring facilities, including sampling shell, a plurality of shutoff mechanism, trigger mechanism and ejecting mechanism, the release leads to the groove has been seted up at sampling shell's top, sampling cavity has been seted up to sampling shell's bottom, and sampling cavity's top and release lead to the inslot intercommunication, set up a plurality of shutoff expansion groove on sampling cavity's the lower part lateral wall, and a plurality of shutoff expansion groove is annular array setting, rotatory annular groove has been seted up to sampling shell upper portion's lateral wall, a plurality of arc spout has been seted up to rotatory annular groove's bottom, and a plurality of arc spout is annular array setting, still set up the disc in the sampling shell and accept the annular groove, and the top of disc accept the annular groove and the bottom intercommunication of a plurality of arc spout, a plurality of shutoff mechanism sliding mounting is in a plurality of shutoff expansion groove respectively, and the top of shutoff mechanism extends to in the disc accepts the annular groove, a plurality of wedge-shaped connecting arc rod and guide disc, install in sampling shell, rotating assembly installs on rotatory annular groove's lateral wall, a plurality of wedge-shaped connecting rod is fixedly installed in rotatory assembly's bottom, a plurality of wedge-shaped connecting rod is installed in the guide arc groove, and the guide groove is set up to the top of the circular disc is set up in the guide groove through the sliding connection of arc groove, and the top of a plurality of arc chute sets up in the guide mechanism is opened in the arc groove, and sliding connection groove is arranged in the top of the guide groove is passed through, and sliding connection groove is arranged in the top of the sealing groove, and the top of the pushing mechanism extends upwards to the outer side of the sampling shell through the pushing through groove.

As a further improvement of the invention, the plugging mechanism comprises a plugging sliding plate, a plugging triangular block and a plugging guide rod, wherein the plugging sliding plate is slidably arranged at one end of the plugging expansion groove far away from the sampling cavity, the plugging triangular block is fixedly arranged on the side wall of the plugging sliding plate, which is close to the sampling cavity, the plugging guide rod is fixedly arranged at the top of the plugging sliding plate, and the plugging guide rod is slidably arranged on the side wall of the guide arc groove.

As a further improvement of the invention, a baffle telescopic groove is formed at the bottom of the plugging telescopic groove, a baffle return spring is fixedly arranged at the bottom of the baffle telescopic groove, a limit baffle is fixedly arranged at the top of the baffle return spring and is arranged on the side wall of the baffle telescopic groove in a sliding manner, a plugging inclined plane is formed at the bottom of the plugging triangular block, the distance between the plugging inclined plane and the plugging sliding plate is gradually increased along the vertical upward direction, a downward moving inclined plane is formed at the top of the limit baffle, and the downward moving inclined plane is correspondingly arranged with the plugging inclined plane.

As a further improvement of the invention, the rotating assembly comprises a rotating ring block, two shifting block rotating shafts and two rotating shifting blocks, wherein the rotating ring block is rotationally arranged on the side wall of the rotating ring groove, the bottom of the rotating ring block is provided with two shifting block accommodating grooves which are symmetrically arranged, the two shifting block rotating shafts are respectively rotationally arranged in the two shifting block accommodating grooves through torsion springs, the two rotating shifting blocks are respectively fixedly arranged on the side wall of the two shifting block rotating shafts, the bottom of the rotating shifting block is propped against the bottom of the rotating ring groove, the bottom of the rotating ring groove is provided with two shifting block clamping grooves which are symmetrically arranged, and when the rotating ring block rotates to the corresponding position, the rotating shifting block rotating shafts can drive the rotating shifting blocks to enter the corresponding shifting block clamping grooves through the elasticity of the torsion springs.

As a further improvement of the invention, a plurality of tight accommodating grooves are formed on the side wall of one side of the arc chute, which is close to the sampling cavity, the tight accommodating grooves are communicated with the sampling cavity, the plurality of tight accommodating grooves are equidistantly arranged along the vertical direction, square anti-disengaging grooves are formed in the middle of the tight accommodating grooves, a tight assembly is arranged in the square anti-disengaging grooves and the tight accommodating grooves, the tight assembly comprises an anti-disengaging block, a tight compression block, a tight spring and a wedge-shaped magnetic attraction sliding block, the anti-disengaging block is slidably arranged on the side wall of the square anti-disengaging groove, the tight compression block is fixedly arranged on the side wall of the anti-disengaging block, which is close to the sampling cavity, the tight spring is fixedly arranged on the side wall of the anti-disengaging block, which is far away from the sampling cavity, the wedge-shaped magnetic attraction sliding block is fixedly arranged on one end of the tight spring, the wedge-shaped magnetic attraction sliding block is slidably arranged on the side wall of the tight accommodating groove, and the wedge-shaped magnetic attraction sliding block is partially arranged in the arc chute.

As a further improvement of the invention, a compression inclined plane is formed on the side wall of one side of the wedge-shaped magnetic attraction sliding block far away from the anti-falling block, a triggering inclined plane is formed on the side wall of one side of the wedge-shaped connecting arc rod, the triggering inclined plane is correspondingly arranged with the compression inclined plane, the wedge-shaped magnetic attraction sliding block is propped against the triggering inclined plane of the wedge-shaped connecting arc rod through the compression inclined plane, when the wedge-shaped connecting arc rod slides in the arc chute, the wedge-shaped connecting arc rod can drive the wedge-shaped magnetic attraction sliding block to move towards the direction of the sampling cavity, a plurality of magnetic attraction rods are arranged in the sampling shell, and are respectively positioned on one side of the plurality of wedge-shaped connecting arc rods far away from the sampling cavity, and the polarities of the magnetic attraction rods and the wedge-shaped magnetic attraction sliding block are opposite.

As a further improvement of the invention, the pushing mechanism comprises a pushing extension rod, a pushing supporting block and a pushing handle, wherein the pushing extension rod is slidably arranged on the side wall of the pushing through groove, the top of the pushing extension rod extends upwards to the outer side of the pushing through groove, the pushing supporting block is fixedly arranged at the bottom of the pushing extension rod, the pushing supporting block is positioned in the sampling cavity, the pushing handle is fixedly arranged at the top of the pushing extension rod, the bottom of the pushing extension rod is provided with an air bag sliding assembly, and the air bag sliding assembly is used for pushing out a soil sample collected in the sampling cavity.

As a further improvement of the invention, the air bag sliding assembly comprises a buffer ring block, a connecting annular cover, a supporting sliding block and an annular expansion air bag, wherein the buffer ring block is slidably arranged on the side wall of the bottom of the pushing-out extension rod, the connecting annular cover is fixedly arranged on the outer side wall of the buffer ring block, the supporting sliding block is fixedly arranged at the bottom of the connecting annular cover and is slidably arranged on the side wall of the sampling cavity, a buffer cavity is formed between the connecting annular cover and the supporting sliding block, the annular expansion air bag is fixedly arranged at the bottom of the supporting sliding block, the outer side wall of the annular expansion air bag is slidably arranged on the side wall of the sampling cavity, a plurality of vent holes are formed at the top of the supporting sliding block and are communicated with the inside of the annular expansion air bag, and the vent holes are arranged in an annular array.

As a further improvement of the invention, the inner side wall of the annular expansion air bag is provided with the fixed ring block, and when the pushing-out extension rod drives the pushing-out supporting block to move downwards, the gas in the buffer cavity is extruded, so that part of the gas in the buffer cavity enters the annular expansion air bag through the vent hole, and the friction force between the pushing-out extension rod and the buffer ring block is smaller than the friction force between the supporting sliding block and the side wall of the sampling cavity.

As a further improvement of the invention, the top of the sampling shell is fixedly provided with two fixed handles, the two fixed handles are symmetrically arranged, the bottom of the sampling shell is provided with a conical surface, and the diameter of the conical surface gradually decreases along the vertical downward direction.

Compared with the prior art, the invention has the beneficial effects that:

1. The three corner blocks are plugged into the sampling cavity, so that the integrity of the sampled soil is ensured, the fragmentation or partial falling of the soil in the sampling process is avoided, the accuracy and the representativeness of sampling are ensured, the soil with different heights can be detected in the detection process due to the assurance of the sampling integrity, the more accurate detection result is obtained, and the detection accuracy is improved.

2. Soil in the sampling cavity is propped by the plurality of tight compression blocks, so that the soil in the sampling cavity is in a tight state, gaps among the soil are reduced, the soil position of the sampling cavity in the moving process of the sampling shell can be prevented from being changed by propping the gaps among the soil, the position of the soil after the sampling is completed is ensured to be stable, the possibility that a detection result is interfered is reduced, and the reliability and the accuracy of the detection result are improved.

3. Prevent through setting up limit baffle that soil from getting into shutoff expansion tank to keep the smoothness degree that shutoff triangular block moved, avoid influencing the smooth and easy nature that equipment used, after the sample was accomplished, the in-process of the removal of shutoff triangular block, shutoff inclined plane and downshift inclined plane laminating, limit baffle can clear away the soil that the shutoff inclined plane is attached, prevent that soil from getting into the shutoff expansion tank, avoid the soil to remain the sample that influences next time, can reopen the sample cavity after the shutoff triangular block gets into the shutoff expansion tank, the sample soil of being convenient for takes out.

4. Through pressing the release handle, just can take out soil from the sample cavity, release to hold the piece and release the preliminary removal of extension rod and compress the gas in the buffer cavity, the gas in the buffer cavity can enter into annular inflation gasbag through the air vent in, make annular inflation gasbag inflation, improve annular inflation gasbag and the laminating degree of sample cavity lateral wall, the further removal of release to hold the piece can be through holding slider and annular inflation gasbag release the soil in the sample cavity, thereby accomplish the takeout of soil, because annular inflation gasbag is inseparabler with the laminating of sample cavity lateral wall, make the frictional force between annular inflation gasbag and the sample cavity lateral wall bigger, soil that will attach on the sample cavity lateral wall that can be better is released, the soil is avoided attaching and is influenced the sample testing result next time on the sample cavity lateral wall.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of another embodiment of the present invention;

FIG. 5 is a schematic diagram of a plugging mechanism, a baffle return spring and a limit baffle according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of another embodiment of a plugging mechanism, a baffle return spring and a limit baffle according to the present invention;

FIG. 7 is a schematic diagram of a trigger mechanism according to an embodiment of the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 2A;

FIG. 9 is a partial enlarged view at B in FIG. 2;

1, a sampling shell; the device comprises a plugging mechanism, 30 parts of a trigger mechanism, 40 parts of an ejection mechanism, 2 parts of an ejection through groove, 3 parts of a sampling cavity, 4 parts of a plugging expansion groove, 5 parts of a rotary ring groove, 6 parts of an arc chute, 7 parts of a disc accommodating ring groove, 31 parts of a rotary assembly, 32 parts of a wedge-shaped connecting arc rod, 33 parts of a guide disc, 331 parts of a guide arc groove, 21 parts of a plugging slide plate, 22 parts of a plugging triangular block, 23 parts of a plugging guide rod, 8 parts of a baffle expansion groove, 9 parts of a baffle return spring, 10 parts of a limiting baffle plate, 221 parts of a plugging inclined surface, 101 parts of a downward moving inclined surface, 311 parts of a rotary ring block, 312 parts of a shifting block rotary shaft, 313 parts of a rotary shifting block, 314 parts of a shifting block accommodating groove, 11 parts of a shifting block clamping groove, 12 parts of a compact accommodating groove, 121 parts of a square retaining groove, 50 parts of a compact assembly, 51 parts of a retaining block, 52 parts of a compact compression block, 53 parts of a compact spring, 54 parts of a wedge-shaped magnetic suction slide block, 541 parts of a compression inclined surface, 321 parts of a trigger inclined surface, 15 parts of a magnetic suction rod, 41 parts of a plugging triangular block, 41 parts of a plugging guide rod, 43 parts of a push-out supporting block, 43 parts of a handle, 60 parts of a push-out of a sliding block, 60 parts of a sliding block, a sliding cushion inclined surface, 61 parts of a sliding block, 61, a sliding block, 62 parts of a ring, a ring-shaped upper and a cushion cover, a cushion ring, a cushion cover, a 63, a cushion and a conical body, a buffer spherical body, a buffer and a buffer spherical.

Detailed Description

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 9, a soil ecological environment monitoring device comprises a sampling housing 1, a plurality of plugging mechanisms 20, a triggering mechanism 30 and a pushing mechanism 40, wherein a pushing through groove 2 is formed at the top of the sampling housing 1, a sampling cavity 3 is formed at the bottom of the sampling housing 1, the top of the sampling cavity 3 is communicated with the pushing through groove 2, a plurality of plugging expansion grooves 4 are formed on the side wall of the lower part of the sampling cavity 3, the plugging expansion grooves 4 are arranged in an annular array, a rotary annular groove 5 is formed on the outer side wall of the upper part of the sampling housing 1, a plurality of arc-shaped sliding grooves 6 are formed at the bottom of the rotary annular groove 5, the arc-shaped sliding grooves 6 are arranged in an annular array, a disc accommodating annular groove 7 is formed in the sampling housing 1, the top of the disc accommodating annular groove 7 is communicated with the bottom of the arc-shaped sliding grooves 6, the bottom of the disc accommodating annular groove 7 is communicated with the top of the plugging expansion grooves 4, the plugging mechanisms 20 are respectively and slidably installed in the plugging telescopic slots 4, the tops of the plugging mechanisms 20 extend into the disc accommodating ring slots 7, the triggering mechanism 30 comprises a rotating component 31, a plurality of wedge-shaped connecting arc rods 32 and a guiding disc 33, the rotating component 31 is rotatably installed on the side wall of the rotating ring slot 5, the wedge-shaped connecting arc rods 32 are fixedly installed at the bottom of the rotating component 31, the wedge-shaped connecting arc rods 32 are respectively and slidably arranged in the arc-shaped sliding slots 6, the guiding disc 33 is fixedly installed at the bottom of the wedge-shaped connecting arc rods 32, the guiding disc 33 is rotatably arranged in the disc accommodating ring slots 7, the guiding arc slots 331 are formed in the bottoms of the guiding disc 33, the tops of the plugging mechanisms 20 are slidably arranged on the side wall of the guiding arc slots 331, when the guide disc 33 rotates, the blocking mechanism 20 is driven to move into the sampling cavity 3 through the guide arc groove 331, the pushing mechanism 40 is slidably arranged on the side wall of the sampling cavity 3, and the top of the pushing mechanism 40 extends upwards to the outer side of the sampling shell 1 through the pushing through groove 2.

The plugging mechanism 20 comprises a plugging sliding plate 21, a plugging triangular block 22 and a plugging guide rod 23, wherein the plugging sliding plate 21 is slidably mounted at one end of the plugging telescopic groove 4 far away from the sampling cavity 3, the plugging triangular block 22 is fixedly mounted on one side wall of the plugging sliding plate 21 close to the sampling cavity 3, the plugging guide rod 23 is fixedly mounted at the top of the plugging sliding plate 21, and the plugging guide rod 23 is slidably arranged on the side wall of the guide arc groove 331.

Baffle expansion tank 8 has been seted up to the bottom of shutoff expansion tank 4, baffle return spring 9 has been installed to the bottom fixed mounting of baffle expansion tank 8, baffle return spring 9's top fixed mounting has limit baffle 10, and limit baffle 10 slides and sets up on baffle expansion tank 8's lateral wall, shutoff inclined plane 221 has been seted up to the bottom of shutoff triangular block 22, and the distance between shutoff inclined plane 221 and the shutoff slide 21 increases gradually along vertical ascending direction, the top of limit baffle 10 forms down and moves inclined plane 101, and move inclined plane 101 and shutoff inclined plane 221 correspond the setting down.

The rotating assembly 31 comprises a rotating ring block 311, two shifting block rotating shafts 312 and two rotating shifting blocks 313, the rotating ring block 311 is rotatably installed on the side wall of the rotating ring groove 5, two shifting block accommodating grooves 314 are formed in the bottom of the rotating ring block 311, the two shifting block accommodating grooves 314 are symmetrically arranged, the two shifting block rotating shafts 312 are respectively rotatably installed in the two shifting block accommodating grooves 314 through torsion springs, the two rotating shifting blocks 313 are respectively fixedly installed on the side wall of the two shifting block rotating shafts 312, the bottom of the rotating shifting block 313 is abutted to the bottom of the rotating ring groove 5, two shifting block clamping grooves 11 are formed in the bottom of the rotating ring groove 5, the two shifting block clamping grooves 11 are symmetrically arranged, and when the rotating ring block 311 is rotated to the corresponding position, the shifting block rotating shafts 312 can drive the rotating shifting blocks 313 to enter the corresponding shifting block clamping grooves 11 through the elasticity of the torsion springs.

The arc chute 6 is close to the side wall of one side of the sampling cavity 3 and is provided with a plurality of tight accommodating grooves 12, the tight accommodating grooves 12 are communicated with the sampling cavity 3, the plurality of tight accommodating grooves 12 are arranged at equal intervals in the vertical direction, the middle of each tight accommodating groove 12 is provided with a square anti-falling groove 121, the square anti-falling groove 121 and the tight accommodating grooves 12 are internally provided with a tight assembly 50, the tight assembly 50 comprises an anti-falling block 51, a tight compression block 52, a tight spring 53 and a wedge-shaped magnetic attraction sliding block 54, the anti-falling block 51 is slidably mounted on the side wall of the square anti-falling groove 121, the tight compression block 52 is fixedly mounted on the side wall of the anti-falling block 51 close to the sampling cavity 3, the tight compression block 52 is slidably mounted on the side wall of the tight accommodating groove 12, the tight spring 53 is fixedly mounted on the side wall of the anti-falling block 51 far away from the sampling cavity 3, the wedge-shaped magnetic attraction sliding block 54 is fixedly mounted on one end of the tight spring 53 far away from the anti-falling block 51, the wedge-shaped magnetic attraction sliding block 54 is slidably arranged on the side wall of the tight accommodating groove 12, and the wedge-shaped magnetic attraction sliding block 54 is partially located in the arc chute 6.

The wedge-shaped magnetic sliding block 54 is far away from a side wall of the anti-falling block 51 and is provided with a compression inclined plane 541, a triggering inclined plane 321 is formed on a side wall of the wedge-shaped connecting arc rod 32, the triggering inclined plane 321 and the compression inclined plane 541 are correspondingly arranged, the wedge-shaped magnetic sliding block 54 is propped against the triggering inclined plane 321 of the wedge-shaped connecting arc rod 32 through the compression inclined plane 541, when the wedge-shaped connecting arc rod 32 slides in the arc chute 6, the wedge-shaped connecting arc rod 32 can drive the wedge-shaped magnetic sliding block 54 to move towards the direction of the sampling cavity 3, a plurality of magnetic attraction rods 15 are arranged in the sampling shell 1, the plurality of magnetic attraction rods 15 are respectively positioned on one side of the plurality of wedge-shaped connecting arc rods 32 far away from the sampling cavity 3, and the polarities of the magnetic attraction rods 15 and the wedge-shaped magnetic sliding block 54 are opposite.

The pushing mechanism 40 comprises a pushing extension rod 41, a pushing supporting block 42 and a pushing handle 43, the pushing extension rod 41 is slidably mounted on the side wall of the pushing through groove 2, the top of the pushing extension rod 41 extends upwards to the outer side of the pushing through groove 2, the pushing supporting block 42 is fixedly mounted at the bottom of the pushing extension rod 41, the pushing supporting block 42 is located in the sampling cavity 3, the pushing handle 43 is fixedly mounted at the top of the pushing extension rod 41, an air bag sliding assembly 60 is mounted at the bottom of the pushing extension rod 41, and the air bag sliding assembly 60 is used for pushing out soil samples collected in the sampling cavity 3.

The air bag sliding assembly 60 comprises a buffer ring block 61, a connecting annular cover 62, a supporting sliding block 63 and an annular expansion air bag 64, wherein the buffer ring block 61 is slidably installed on the bottom side wall of the pushing-out extension rod 41, the connecting annular cover 62 is fixedly installed on the outer side wall of the buffer ring block 61, the supporting sliding block 63 is fixedly installed on the bottom of the connecting annular cover 62, the supporting sliding block 63 is slidably arranged on the side wall of the sampling cavity 3, a buffer cavity 621 is formed between the connecting annular cover 62 and the supporting sliding block 63, the annular expansion air bag 64 is fixedly installed on the bottom of the supporting sliding block 63, the outer side wall of the annular expansion air bag 64 is slidably arranged on the side wall of the sampling cavity 3, a plurality of vent holes 631 are formed in the top of the supporting sliding block 63, the vent holes 631 are communicated with the inside of the annular expansion air bag 64, and the plurality of vent holes 631 are arranged in an annular array.

The fixed ring block 641 is arranged on the inner side wall of the annular expansion air bag 64, and when the pushing-out extension rod 41 drives the pushing-out supporting block 42 to move downwards, gas in the buffer cavity 621 is extruded, so that part of gas in the buffer cavity 621 enters the annular expansion air bag 64 through the vent hole 631, and the friction force between the pushing-out extension rod 41 and the buffer ring block 61 is smaller than the friction force between the supporting sliding block 63 and the side wall of the sampling cavity 3.

The top fixed mounting of sampling shell 1 has two fixed handles 13, and two fixed handles 13 symmetry set up, and the bottom of sampling shell 1 is formed with conical surface 14, and the diameter of conical surface 14 reduces along vertical decurrent direction gradually.

In one embodiment, when an operator needs to detect the ecological environment of soil, the operator needs to sample the soil in the environment, and then the sampled soil is analyzed and detected by an external detection device, so as to mainly detect organic matters, nutrient elements (such as nitrogen, phosphorus and potassium) and the like in the soil, The pH value, the number and diversity of microorganisms, etc., the sampling housing 1 is a cylinder, in the process of sampling soil, if on soft soil, an operator can directly hold two fixing handles 13 with hands respectively to drive the sampling housing 1 to insert into the soil, the bottom of the sampling housing 1 is provided with a conical surface 14, the sampling housing 1 can be more easily inserted into the soil through the conical surface 14, if on harder soil, the operator can press down the two fixing handles 13 with the help of an external device to drive the sampling housing 1 to insert into the soil, when the sampling housing 1 is inserted into the soil, the soil can enter into a sampling cavity 3 in the sampling housing 1, then the operator can rotate two rotary shifting blocks 313 anticlockwise by taking an extruding extension rod 41 as a central shaft, the two rotary shifting blocks 313 can drive the rotary ring blocks 311 to rotate, the rotary ring block 311 can drive the wedge-shaped connecting arc rods 32 to rotate around the central axis of the sampling shell 1, the wedge-shaped connecting arc rods 32 can drive the guide disc 33 to rotate, the guide disc 33 can drive the blocking guide rod 23 to move towards the sampling cavity 3 through the guide arc groove 331 when rotating, the blocking guide rod 23 can drive the blocking slide plate 21 to move towards the sampling cavity 3 in the blocking telescopic groove 4, the blocking slide plate 21 can drive the blocking triangular block 22 to move towards the central axis of the sampling shell 1, when the blocking triangular block 22 moves to the maximum distance, the blocking triangular blocks 22 can mutually support to seal the sampling cavity 3, when the rotary shifting block 313 rotates to the maximum angle, the rotary shifting block 313 is just positioned above the corresponding shifting block clamping groove 11, the shifting block rotary shaft 312 can drive the rotary shifting block 313 to overturn downwards through the elasticity of the torsion spring, thus, the other end of the rotary shifting block 313 enters the shifting block clamping groove 11, the rotary ring block 311 cannot rotate, at this time, the plugging triangular blocks 22 just move to the maximum distance to mutually support the plugging sampling cavity 3, an operator can lift the sampling shell 1 through the two fixing handles 13, the soil above the plugging triangular blocks 22 cannot separate from the bottom of the sampling cavity 3 due to plugging, thus the sampling of the soil is completed, the whole soil can be completely taken out, the integrity of the sampled soil is ensured, the soil with different heights is required to be detected during detection, the more accurate detection result can be obtained during detection under the condition of ensuring the integrity of the sampled soil, the detection accuracy is improved, the plugging of the sampling cavity 3 by the plugging triangular blocks 22 is ensured, the soil is prevented from being cracked or partially fallen off in the sampling process, the accuracy and the representativeness of the sampling are ensured, the soil with different heights can be detected during detection, and the detection accuracy is improved.

In an embodiment, the distance between the compression inclined plane 541 and the anti-falling block 51 is gradually increased along the anticlockwise direction, when the wedge-shaped connecting arc rod 32 rotates, the wedge-shaped connecting arc rod can be abutted against the compression inclined plane 541 of the wedge-shaped magnetic sliding block 54 through the triggering inclined plane 321, so that the wedge-shaped magnetic sliding block 54 moves into the tight accommodating groove 12, the wedge-shaped magnetic sliding block 54 can compress the tight spring 53 when moving, under normal conditions, the tight spring 53 is in a natural state, neither elasticity nor tension is generated, when the tight spring 53 is compressed, elasticity can generate elasticity, the anti-falling block 51 can move towards the direction of the sampling cavity 3, the anti-falling block 51 can drive the tight compression block 52 to move towards the inside of the sampling cavity 3, the soil in the sampling cavity 3 can be compressed in the moving process of the tight compression block 52, so that the soil in the sampling cavity 3 is in a tight state, the gap between the soil is reduced, the condition that the soil in the sampling cavity 3 is larger after the sampling is finished and the position in the soil is changed due to shaking and the like in the process of moving the sampling shell 1 before detection is avoided, for example, the soil at the upper part of the sampling cavity 3 is moved to the lower part due to shaking, so that the detection result is influenced, the condition that the sampling shell 1 influences the detection result due to shaking is reduced, the reliability of the detection result is improved, when the wedge-shaped connecting arc rod 32 is reversely rotated and reset, the wedge-shaped magnetic attraction sliding block 54 can move to a direction away from the sampling cavity 3 through the attraction force of the magnetic attraction rod 15 for resetting, the wedge-shaped magnetic attraction sliding block 54 can lead the compact spring 53 to stretch to generate a tensile force and pull the anti-falling block 51 to reset with the compact compression block 52, the compact spring 53 returns to a natural state after the anti-falling block 51 resets, soil in the sampling cavity 3 is propped against the plurality of tight compression blocks 52, so that the soil in the sampling cavity 3 is in a tight state, gaps among the soil are reduced, the soil position in the sampling cavity 3 can be prevented from changing in the moving process of the sampling shell 1 by propping against the gaps among the soil, the position of the soil is ensured to be stable after the sampling is completed, the possibility that a detection result is disturbed is reduced, and the reliability and the accuracy of the detection result are improved.

When the sampling shell 1 is inserted into soil, the soil can enter the sampling cavity 3, a limit baffle 10 is arranged at one end of the plugging expansion groove 4 close to the sampling cavity 3, the limit baffle 10 can prevent the soil in the sampling cavity 3 from entering the plugging expansion groove 4 to influence the movement of the plugging triangular block 22, when the plugging triangular block 22 moves towards the sampling cavity 3, the plugging triangular block 22 can abut against a downward moving inclined surface 101 of the limit baffle 10 through the plugging inclined surface 221, so that the downward moving inclined surface 101 moves downwards to compress a baffle return spring 9, the downward moving inclined surface 101 can completely enter the baffle expansion groove 8, when the sampling soil needs to be taken out after the sampling is completed, the plugging triangular block 22 moves towards a direction away from the sampling cavity 3, the limit baffle 10 can move upwards through the elasticity of the baffle return spring 9, so that the downward moving inclined plane 101 is attached to the blocking inclined plane 221 of the blocking triangular block 22, thereby scraping off the soil attached to the blocking inclined plane 221, thereby playing a cleaning role on the blocking inclined plane 221, avoiding bringing the soil into the blocking telescopic slot 4 when the blocking triangular block 22 moves, re-opening the sampling cavity 3 after the blocking triangular block 22 enters the blocking telescopic slot 4, facilitating the soil taking out in the cavity sampling cavity 3, preventing the soil from entering the blocking telescopic slot 4 by arranging the limit baffle 10, thereby keeping the smoothness of the movement of the blocking triangular block 22, avoiding affecting the smoothness of the equipment use, attaching the blocking inclined plane 221 to the downward moving inclined plane 101 in the moving process of the blocking triangular block 22 after the sampling is completed, preventing the soil attached to the blocking inclined plane 221 from being removed by the limit baffle 10, avoiding the soil residue from affecting the next sampling, the sampling cavity 3 can be opened again after the plugging triangular block 22 enters the plugging telescopic slot 4, so that sampling soil can be taken out conveniently.

It is noted that the distance between the guide arc groove 331 and the sampling cavity 3 gradually decreases in the counterclockwise direction, and the middle part of the guide arc groove 331 arches in the clockwise direction, when the rotary ring block 311 rotates to make the plugging triangular block 22 move through the guide arc groove 331, under the condition that the rotation speed of the rotary ring block 311 is unchanged, the moving speed of the plugging triangular block 22 is from slow to fast, the resistance is larger when the plugging triangular block 22 is just inserted into the soil in the sampling cavity 3, the moving stability of the plugging triangular block 22 can be improved when the plugging triangular block 22 is inserted into the soil at a slower speed, and the moving speed of the plugging triangular block 22 can be improved when the plugging triangular block 22 is inserted into the soil with a certain initial speed, so that a plurality of plugging triangular blocks 22 can be mutually abutted fast, the sampling cavity 3 is plugged, and the working efficiency is improved.

In an embodiment, when the sealed sampling cavity 3 is opened and soil in the sampling cavity 3 needs to be taken out for detection, an operator can press the push-out handle 43 towards the direction of the sampling shell 1, the push-out handle 43 can drive the push-out extension rod 41 to move synchronously, the push-out extension rod 41 can drive the push-out supporting block 42 to move towards the buffer cavity 621, the friction force between the push-out extension rod 41 and the buffer ring block 61 is smaller than the friction force between the supporting block 63 and the side wall of the sampling cavity 3, when the push-out extension rod 41 moves, the push-out supporting block 42 can slide on the inner side wall of the buffer ring block 61, in the process of downwards moving and supporting the top of the supporting block 63, the push-out supporting block 42 and the push-out extension rod 41 can compress gas in the buffer cavity 621, the gas in the buffer cavity 621 can enter the annular expansion air bag 64 through the vent hole 631, the gas enters the annular expansion air bag 64 to expand outwards or downwards, so that the annular expansion air bag 64 can be more attached to the side wall of the sampling cavity 3, when the pushing-out supporting block 42 is supported on the top of the supporting block 63 and then moves downwards, the supporting block 63 can drive the annular expansion air bag 64 to move downwards, the supporting block 63 and the annular expansion air bag 64 can push out soil in the sampling cavity 3 together, thereby completing the sampling soil extraction, then the soil is detected, then an operator can pull the pushing-out handle 43 to move upwards, the pushing-out handle 43 can drive the pushing-out extension rod 41 to move upwards, the pushing-out extension rod 41 can drive the pushing-out supporting block 42 to move upwards, the pushing-out supporting block 42 moves to be supported in the process of connecting the annular cover 62, gas in the annular expansion air bag 64 can enter the buffer cavity 621 through the vent hole 631, the annular expansion air bag 64 is expanded, the friction force between the annular expansion air bag 64 and the sampling cavity 3 is reduced, the pushing-out supporting block 42 can be more smooth when the annular cover 62 is further moved upwards, soil can be taken out of the sampling cavity 3 by pressing the pushing-out handle 43, the preliminary movement of the pushing-out supporting block 42 and the pushing-out extension rod 41 compresses the gas in the buffer cavity 621, the gas in the buffer cavity 621 can enter the annular expansion air bag 64 through the vent hole 631, the annular expansion air bag 64 is expanded, the bonding degree between the annular expansion air bag 64 and the side wall of the sampling cavity 3 is improved, further movement of the pushing-out supporting block 42 can push out the soil in the sampling cavity 3 through the supporting block 63 and the annular expansion air bag 64, the soil in the sampling cavity 3 is further completed, the bonding between the annular expansion air bag 64 and the side wall of the sampling cavity 3 is more compact, the fact that the friction force between the annular expansion air bag 64 and the side wall of the sampling cavity 3 is greater, the soil can be better bonded on the side wall of the sampling cavity 3 is detected, and the soil is prevented from being attached to the side wall of the sampling cavity 3 at one time, and the result is prevented from being influenced.

During installation, a plurality of wedge-shaped connecting arc rods 32 are fixedly arranged at the bottom of a rotary ring block 311, a guide disc 33 is fixedly arranged at the bottom of the plurality of wedge-shaped connecting arc rods 32, a plugging sliding plate 21 is slidably arranged at one end of a plugging telescopic groove 4 far away from a sampling cavity 3, a plugging triangular block 22 is fixedly arranged on one side wall of the plugging sliding plate 21 close to the sampling cavity 3, a plugging guide rod 23 is fixedly arranged at the top of the plugging sliding plate 21, the rotary ring block 311 is rotatably arranged on the side wall of a rotary ring groove 5, two shifting block rotating shafts 312 are respectively and rotatably arranged in two shifting block accommodating grooves 314 through torsion springs, two rotary shifting blocks 313 are respectively and fixedly arranged on the side walls of the two shifting block rotating shafts 312, a falling-off stopping block 51 is slidably arranged on the side wall of a square falling-stopping groove 121, the compact compression block 52 is fixedly arranged on one side wall of the anti-falling block 51, which is close to the sampling cavity 3, the compact spring 53 is fixedly arranged on one side wall of the anti-falling block 51, which is far away from the sampling cavity 3, the wedge-shaped magnetic attraction sliding block 54 is fixedly arranged at one end of the compact spring 53, which is far away from the anti-falling block 51, the push-out extension rod 41 is slidably arranged on the side wall of the push-out through groove 2, the push-out supporting block 42 is fixedly arranged at the bottom of the push-out extension rod 41, the push-out handle 43 is fixedly arranged at the top of the push-out extension rod 41, the buffer ring block 61 is slidably arranged on the bottom side wall of the push-out extension rod 41, the connecting annular cover 62 is fixedly arranged on the outer side wall of the buffer ring block 61, the supporting sliding block 63 is fixedly arranged at the bottom of the connecting annular cover 62, and the annular expansion air bag 64 is fixedly arranged at the bottom of the supporting sliding block 63.

The scheme can realize that 1. The sampling cavity 3 is plugged by a plurality of plugging triangular blocks 22, so that the integrity of the sampled soil is ensured, and the fragmentation or partial falling of the soil in the sampling process is avoided, thereby ensuring the accuracy and representativeness of the sampling, ensuring the sampling integrity, and detecting the soil with different heights during detection, thereby obtaining more accurate detection results and improving the detection accuracy.

2. Soil in the sampling cavity 3 is propped against the plurality of tight compression blocks 52, so that the soil in the sampling cavity 3 is in a tight state, gaps among the soil are reduced, the soil position in the sampling cavity 3 can be prevented from changing in the moving process of the sampling shell 1 by propping against the gaps among the soil, the position of the soil is ensured to be stable after the sampling is completed, the possibility that a detection result is disturbed is reduced, and the reliability and the accuracy of the detection result are improved.

3. Prevent through setting up limit baffle 10 that soil from getting into shutoff expansion tank 4 to keep the smoothness degree that shutoff triangular block 22 moved, avoid influencing the smoothness nature that equipment used, after the sample was accomplished, the in-process of the removal of shutoff triangular block 22, shutoff inclined plane 221 and move down inclined plane 101 laminating, limit baffle 10 can clear away the soil that shutoff inclined plane 221 is attached, prevent that soil from getting into shutoff expansion tank 4, avoid the soil to remain the sample that influences next time, can reopen sampling cavity 3 after shutoff triangular block 22 gets into shutoff expansion tank 4, be convenient for take out the sample soil.

4. By pressing the push-out handle 43, soil can be taken out from the sampling cavity 3, the push-out supporting block 42 and the preliminary movement of the push-out extension rod 41 compress the gas in the buffer cavity 621, the gas in the buffer cavity 621 can enter the annular expansion air bag 64 through the vent hole 631, the annular expansion air bag 64 is expanded, the bonding degree of the annular expansion air bag 64 and the side wall of the sampling cavity 3 is improved, the further movement of the push-out supporting block 42 can push out the soil in the sampling cavity 3 through the supporting sliding block 63 and the annular expansion air bag 64, and thus the soil is taken out, the friction force between the annular expansion air bag 64 and the side wall of the sampling cavity 3 is larger due to the fact that the annular expansion air bag 64 is bonded with the side wall of the sampling cavity 3, and the soil attached to the side wall of the sampling cavity 3 can be better pushed out, so that the next sampling detection result is prevented from being influenced by the soil attached to the side wall of the sampling cavity 3.

All possible combinations of the technical features in the above embodiments are described, but should be considered as the scope of the description provided that there is no contradiction between the combinations of the technical features.

The above embodiments represent only a few embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the present invention. It should be noted that numerous variations and modifications could be made to the person skilled in the art without departing from the spirit of the invention, which would fall within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. The utility model provides a soil ecological environment monitoring facilities, a serial communication port, including sample casing (1), a plurality of shutoff mechanism (20), trigger mechanism (30) and release mechanism (40), release logical groove (2) have been seted up at the top of sample casing (1), sample cavity (3) have been seted up at the bottom of sample casing (1), and the top of sample cavity (3) communicates with release logical groove (2), a plurality of shutoff expansion groove (4) have been seted up on the lower part lateral wall of sample cavity (3), and a plurality of shutoff expansion groove (4) are the annular array setting, rotatory annular groove (5) have been seted up to the lateral wall of sample casing (1) upper portion, a plurality of arc spout (6) have been seted up to the bottom of rotatory annular groove (5), and a plurality of arc spout (6) are the annular array setting, disc acceping annular groove (7) have still been seted up in sample casing (1), and the top of disc acceping annular groove (7) communicates with the bottom of a plurality of arc spout (6), the bottom of disc acceping annular groove (7) communicates with the top of a plurality of shutoff expansion groove (4), a plurality of shutoff mechanism (20) are installed in a plurality of shutoff mechanism (20) sliding respectively in a plurality of shutoff annular groove (4) and are stretched out in (30), the rotatory assembly (31) is acceping in the annular groove (30), the rotatory assembly is acceping The device comprises a sampling shell (1), a plurality of wedge-shaped connecting arc rods (32) and a guide disc (33), wherein the wedge-shaped connecting arc rods (32) and the guide disc (33) are arranged in the sampling shell, a rotating assembly (31) is rotatably arranged on the side wall of a rotating ring groove (5), the wedge-shaped connecting arc rods (32) are fixedly arranged at the bottom of the rotating assembly (31), the wedge-shaped connecting arc rods (32) are respectively and slidably arranged in a plurality of arc sliding grooves (6), the guide disc (33) is fixedly arranged at the bottom of the wedge-shaped connecting arc rods (32), the guide disc (33) is rotatably arranged in a disc accommodating ring groove (7), a guide arc groove (331) is formed in the bottom of the guide disc (33), the top of a plugging mechanism (20) is slidably arranged on the side wall of the guide arc groove (331), the guide disc (33) drives the plugging mechanism (20) to move towards the sampling cavity (3) when rotating, a push-out mechanism (40) is slidably arranged on the side wall of the sampling cavity (3), and the top of the push-out mechanism (40) extends upwards to the outer side of the sampling shell (1) through a push-out through groove (2);

The plugging mechanism (20) comprises a plugging sliding plate (21), a plugging triangular block (22) and a plugging guide rod (23), wherein the plugging sliding plate (21) is slidably installed at one end of the plugging telescopic groove (4) far away from the sampling cavity (3), the plugging triangular block (22) is fixedly installed on one side wall of the plugging sliding plate (21) close to the sampling cavity (3), the plugging guide rod (23) is fixedly installed at the top of the plugging sliding plate (21), and the plugging guide rod (23) is slidably arranged on the side wall of the guide arc groove (331);

A baffle telescopic groove (8) is formed in the bottom of the plugging telescopic groove (4), a baffle return spring (9) is fixedly arranged at the bottom of the baffle telescopic groove (8), a limit baffle (10) is fixedly arranged at the top of the baffle return spring (9), the limit baffle (10) is arranged on the side wall of the baffle telescopic groove (8) in a sliding mode, a plugging inclined plane (221) is formed in the bottom of the plugging triangular block (22), the distance between the plugging inclined plane (221) and the plugging sliding plate (21) is gradually increased along the vertical upward direction, a downward moving inclined plane (101) is formed at the top of the limit baffle (10), and the downward moving inclined plane (101) and the plugging inclined plane (221) are correspondingly arranged;

The rotary assembly (31) comprises a rotary ring block (311), two rotary block rotating shafts (312) and two rotary blocks (313), wherein the rotary ring block (311) is rotatably installed on the side wall of the rotary ring groove (5), two rotary block accommodating grooves (314) are formed in the bottom of the rotary ring block (311), the two rotary block accommodating grooves (314) are symmetrically arranged, the two rotary block rotating shafts (312) are respectively installed in the two rotary block accommodating grooves (314) through rotation of torsion springs, the two rotary block (313) are respectively fixedly installed on the side wall of the two rotary block rotating shafts (312), the bottom of the rotary block (313) is propped against the bottom of the rotary ring groove (5), two rotary block clamping grooves (11) are formed in the bottom of the rotary ring groove (5), the two rotary block clamping grooves (11) are symmetrically arranged, and when the rotary ring block (311) rotates to the corresponding positions, the rotary block rotating shafts (312) can be driven by the torsion springs to rotate the rotary blocks (313) to enter the corresponding rotary block clamping grooves (11).

2. The soil ecological environment monitoring device according to claim 1, wherein a plurality of tight accommodating grooves (12) are formed in the side wall of the arc-shaped chute (6) close to the sampling cavity (3), the tight accommodating grooves (12) are communicated with the sampling cavity (3), the plurality of tight accommodating grooves (12) are equidistantly arranged at intervals along the vertical direction, square anti-disengaging grooves (121) are formed in the middle of the tight accommodating grooves (12), a tight assembly (50) is arranged in the square anti-disengaging grooves (121) and the tight accommodating grooves (12), the tight assembly (50) comprises an anti-disengaging block (51), a tight compression block (52), a tight spring (53) and a wedge-shaped magnetic attraction sliding block (54), the anti-disengaging block (51) is slidably mounted on the side wall of the square anti-disengaging grooves (121), the tight compression block (52) is fixedly mounted on the side wall of the anti-disengaging block (51) close to the sampling cavity (3), the tight spring (53) is fixedly mounted on the side wall of the tight accommodating grooves (12), the tight spring (53) is fixedly mounted on the side wall of the anti-disengaging block (51) far from the sampling cavity (3), the wedge-shaped magnetic attraction sliding block (54) is mounted on the side wall (54) far from the tight sliding block (54), the wedge-shaped magnetic attraction sliding block (54) is partially positioned in the arc-shaped chute (6).

3. The soil ecological environment monitoring device according to claim 2, wherein a compression inclined surface (541) is formed on a side wall of the wedge-shaped magnetic attraction sliding block (54) away from the anti-falling block (51), a triggering inclined surface (321) is formed on a side wall of the wedge-shaped connection arc rod (32), the triggering inclined surface (321) and the compression inclined surface (541) are correspondingly arranged, the wedge-shaped magnetic attraction sliding block (54) is abutted against the triggering inclined surface (321) of the wedge-shaped connection arc rod (32) through the compression inclined surface (541), when the wedge-shaped connection arc rod (32) slides in the arc chute (6), the wedge-shaped connection arc rod (32) can drive the wedge-shaped magnetic attraction sliding block (54) to move towards the direction of the sampling cavity (3), a plurality of magnetic attraction rods (15) are arranged in the sampling shell (1), the magnetic attraction rods (15) are respectively located on one side of the plurality of wedge-shaped connection arc rods (32) away from the sampling cavity (3), and the polarities of the magnetic attraction rods (15) and the wedge-shaped magnetic attraction sliding block (54) are opposite.

4. A soil ecological environment monitoring device according to claim 3, characterized in that the pushing mechanism (40) comprises a pushing extension rod (41), a pushing supporting block (42) and a pushing handle (43), the pushing extension rod (41) is slidably mounted on the side wall of the pushing through groove (2), the top of the pushing extension rod (41) extends upwards to the outer side of the pushing through groove (2), the pushing supporting block (42) is fixedly mounted at the bottom of the pushing extension rod (41), the pushing supporting block (42) is located in the sampling cavity (3), the pushing handle (43) is fixedly mounted at the top of the pushing extension rod (41), an air bag sliding assembly (60) is mounted at the bottom of the pushing extension rod (41), and the air bag sliding assembly (60) is used for pushing out a soil sample collected in the sampling cavity (3).

5. The soil ecological environment monitoring device according to claim 4, wherein the air bag sliding assembly (60) comprises a buffer ring block (61), a connecting annular cover (62), a supporting sliding block (63) and an annular expansion air bag (64), the buffer ring block (61) is slidably mounted on the bottom side wall of the pushing-out extension rod (41), the connecting annular cover (62) is fixedly mounted on the outer side wall of the buffer ring block (61), the supporting sliding block (63) is fixedly mounted on the bottom of the connecting annular cover (62), the supporting sliding block (63) is slidably arranged on the side wall of the sampling cavity (3), a buffer cavity (621) is formed between the connecting annular cover (62) and the supporting sliding block (63), the annular expansion air bag (64) is fixedly mounted on the bottom of the supporting sliding block (63), a plurality of vent holes (631) are formed in the top of the supporting sliding block (63) and are communicated with the inside of the annular expansion air bag (64), and the plurality of vent holes (631) are arranged in an annular array.

6. The soil ecological environment monitoring device according to claim 5, wherein a fixed ring block (641) is arranged on the inner side wall of the annular expansion air bag (64), when the pushing-out extension rod (41) drives the pushing-out supporting block (42) to move downwards, gas in the buffer cavity (621) is extruded, part of the gas in the buffer cavity (621) enters the annular expansion air bag (64) through the vent hole (631), and friction force between the pushing-out extension rod (41) and the buffer ring block (61) is smaller than friction force between the supporting sliding block (63) and the side wall of the sampling cavity (3).

7. The soil ecological environment monitoring device according to claim 6, wherein the top of the sampling housing (1) is fixedly provided with two fixed handles (13), the two fixed handles (13) are symmetrically arranged, the bottom of the sampling housing (1) is formed with a conical surface (14), and the diameter of the conical surface (14) is gradually reduced along the vertical downward direction.