Sample collection device for soil ecological restoration

Abstract

The invention discloses a sample collection device for soil ecological restoration, and belongs to the technical field of soil ecological restoration. The sample collecting device for soil ecological restoration comprises a sampling barrel used for sampling, the sampling barrel comprises a plurality of outer barrels, the outer barrels are detachably connected through connecting pieces, sliding grooves are formed in the inner side walls of the outer barrels in the vertical direction of the outer barrels, inner barrels are vertically arranged in the outer barrels, and the inner barrels are detachably connected through connecting pieces. The outer side wall of the inner cylinder is attached to the inner side wall of the outer cylinder, sliding blocks are slidably inserted into the sliding grooves and fixedly connected to the outer side wall of the inner cylinder, a driving part is fixedly arranged at the top of the inner cylinder, the top of the inner cylinder is fixedly connected with the driving end of the driving part, and a crushing part is fixedly arranged at the bottom of the outer cylinder. When the soil at different depths is sampled, the outer cylinder is retained in the sampling hole, so that soil debris around the sampling hole can be prevented from flowing into the bottom of the sampling hole, soil samples at different depths are prevented from being mixed, and the influence on subsequent soil detection is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of soil ecological restoration, and in particular to a sample collection device for soil ecological restoration. Background Art

[0002] Soil ecological restoration refers to the restoration and improvement of the function and health status of polluted, degraded or damaged soil ecosystems through a series of measures and methods. These measures are aimed at restoring the soil structure, nutrient cycle, hydraulic properties, and microorganisms and biodiversity in the soil, and promoting the ecological function and productivity of the soil. With the continuous progress of society, more and more attention is paid to the protection of the environment while carrying out industrial production. The previous industrial development has caused serious damage to the ecological environment, so it is necessary to use a soil sample collection device for soil sampling to analyze the composition of the soil and provide a basis for subsequent soil ecological restoration.

[0003] In order to better understand the soil structure and the microorganisms and biodiversity in the soil when taking soil samples, it is necessary to sample the soil at different depths.

[0004] The existing soil sampling device drives the sampler to rotate through a drill, and then inserts the drill and the sampler into the soil to be sampled through an external drive. After each sampling is completed, the sampler needs to be pulled out again and the soil is collected, and the same sampling point is sampled again at different depths. However, when the sampler is pulled out of the soil, due to the loose soil, the soil debris around the sampling hole will flow into the bottom of the sampling hole. When sampling again, soils of different depths will be mixed, resulting in inaccurate results of subsequent soil tests. Summary of the invention

[0005] The purpose of the present invention is to overcome the problems in the prior art and provide a sample collection device for soil ecological restoration. When soil sampling is performed, the soil around the sampling hole is blocked to prevent soil debris around the sampling hole from flowing into the bottom of the sampling hole and causing mixing of soil samples at different depths, which will affect subsequent soil detection.

[0006] The present invention provides a sample collection device for soil ecological restoration, comprising a sampling cylinder for sampling, the sampling cylinder comprising an outer cylinder, a plurality of outer cylinders being provided, and the plurality of outer cylinders being detachably connected via a connecting piece, a slide groove being provided on the inner side wall of the outer cylinder along its vertical direction, an inner cylinder being vertically provided inside the outer cylinder, and the outer side wall of the inner cylinder being arranged in close contact with the inner side wall of the outer cylinder, a slider being slidably inserted into the slide groove, and the slider being fixedly connected to the outer side wall of the inner cylinder, a driving assembly being fixedly provided on the top of the inner cylinder, and the top of the inner cylinder being fixedly connected to the adjusting end of the driving assembly, the driving assembly being used to drive the inner cylinder to slide in the outer cylinder and to perform axial rotation, and a crushing piece being fixedly provided at the bottom of the outer cylinder.

[0007] Preferably, the crushing member comprises a connecting ring, which is fixedly connected to the bottom of the outer cylinder, and the connecting ring is fixedly connected to a plurality of crushing blades in an array along its axial direction, and the connecting ring coincides with the axis of the outer cylinder and has the same cross-section as the outer cylinder.

[0008] Preferably, the inner cylinder is formed by splicing two identical arc-shaped plates, and the sliding block serves as a connecting portion for a pair of the arc-shaped plates to be spliced ​​and buckled together.

[0009] Preferably, the slider includes a first connecting block, the first connecting block is arranged as a pair, the pair of the first connecting blocks are respectively fixedly connected to the pair of the arc plates, a pair of the first connecting blocks are fixedly connected to a second connecting block on a side away from the arc plates, a pair of the second connecting blocks perfectly fit with the slide groove when buckled, the volume of the first connecting block is smaller than that of the second connecting block, and the pair of the first connecting blocks are connected by a connecting screw.

[0010] Preferably, a sealing cover is fixedly connected to the top of the inner cylinder, any one of the arc plates is fixedly connected to the sealing cover, the sealing cover is provided with a pushing piece on one side of the arc plate, the pushing piece includes a telescopic rod, the telescopic rod coincides with the axis of the inner cylinder and is fixedly connected to the sealing cover, and a pushing plate is slidably fitted on the inner wall of the inner cylinder.

[0011] Preferably, the connecting member includes a plurality of plug blocks, and a plurality of the plug blocks are fixedly connected to the top end of the outer cylinder in a circular array, and a slot matching the plug block is provided at the bottom end of another outer cylinder spliced ​​therewith, and a limiting hole is provided on the plug block, and a horizontally arranged limiting rod is slidably embedded in the outer cylinder, and the limiting rod passes through the outer cylinder and is inserted into the limiting hole.

[0012] Preferably, it also includes a support assembly, which includes a support seat, rollers are fixedly installed at the bottom corners of the support seat, a through hole for sampling is set in the middle of the support seat, a vertically installed fixing plate is fixedly connected to the support seat, and a horizontally installed first support plate is fixedly connected to the top of the fixing plate.

[0013] Preferably, the driving assembly includes a vertically arranged cylinder, the cylinder is fixedly connected to the bottom of the first support plate, the output end of the cylinder is fixedly connected to the second support plate, the bottom of the second support plate is fixedly connected to a motor, and the output end of the motor is fixedly connected to the cover.

[0014] Preferably, a stabilizing assembly is provided on the support seat, and the stabilizing assembly includes a limiting screw, and the limiting screw is vertically threaded and inserted on the support seat, and the bottom end of the limiting screw is fixedly connected to a limiting plate.

[0015] Preferably, the second support plate is smaller than the inner diameter of the outer tube, and the outer diameter of the motor is smaller than the outer diameter of the inner tube.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: a sample collection device for soil ecological restoration of the present invention, in which the outer cylinder and the inner cylinder are separately arranged, and the outer cylinder is retained in the sampling hole when sampling soil at different depths, which can prevent soil debris around the sampling hole from flowing into the bottom of the sampling hole to cause mixing of soil samples at different depths, affecting subsequent soil detection, and connecting the outer cylinder with the inner cylinder through a slider so that the inner cylinder and the outer cylinder are driven at the same time, and the soil will enter the inner cylinder for sampling and storage, while the outer cylinder will be retained in the sampling hole to compact the soil on the side wall of the sampling hole, which can prevent the soil debris on the side wall of the sampling hole from falling and improve the accuracy of soil sampling at different depths. The sample collection device for soil ecological restoration of the present invention is easy and quick to use, and solves the problem of soil mixing existing in actual sampling through a tiny structure, and has excellent generalizability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the cooperation structure of the outer cylinder and the inner cylinder when taking soil samples according to the present invention.

[0018] Figure 2 It is a schematic diagram of the inner cylinder and the slider structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of the outer cylinder and the connecting piece of the present invention.

[0020] Figure 4 It is a partial structural schematic diagram of the connecting piece of the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the propulsion member of the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the support assembly and the drive assembly of the present invention.

[0023] Explanation of the accompanying drawings: 1. Sampling cylinder; 101. Outer cylinder; 102. Inner cylinder; 1021. Arc plate; 2. Slide groove; 3. Sliding block; 31. First connecting block; 32. Second connecting block; 33. Connecting screw; 4. Driving assembly; 41. Cylinder; 42. Second supporting plate; 43. Motor; 5. Crushing piece; 51. Connecting ring; 52. Crushing blade; 6. Sealing cover; 7. Pushing piece; 71. Telescopic rod; 72. Pushing plate; 8. Connecting piece; 81. Insert block; 82. Slot; 83. Limiting hole; 84. Limiting rod; 9. Support assembly; 91. Support seat; 92. Roller; 93. Through hole; 10. Fixing plate; 11. First supporting plate; 12. Stabilizing assembly; 121. Limiting screw; 122. Limiting plate. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1 to Figure 6 In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the usual meanings understood by people with general skills in the field to which the present invention belongs.

[0025] The words "first", "second" and similar words used in the specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The words "include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects. "Inside", "outside", "upper", "lower", "far", "near", "front", "back" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The drawings in the present invention are not drawn strictly according to the actual scale. The specific size and quantity of each structure can be determined according to actual needs. The drawings described in the present invention are only schematic diagrams of the structure.

[0026] The present invention provides a soil ecological restoration sample collection device, such as Figure 1 to Figure 4As shown, it includes a sampling cylinder 1 for sampling, and the sampling cylinder 1 includes an outer cylinder 101. A plurality of outer cylinders 101 are provided, and the plurality of outer cylinders 101 are detachably connected to each other through a connecting piece 8. A slide groove 2 is provided on the inner wall of the outer cylinder 101 along its vertical direction, an inner cylinder 102 is vertically provided inside the outer cylinder 101, and the outer wall of the inner cylinder 102 is fitted with the inner wall of the outer cylinder 101, a slider 3 is slidably inserted in the slide groove 2, and the slider 3 is fixedly connected to the outer wall of the inner cylinder 102, a driving component 4 is fixedly provided on the top of the inner cylinder 102, and the top of the inner cylinder 102 is fixedly connected to the adjusting end of the driving component 4, and a crushing piece 5 is fixedly provided on the bottom of the outer cylinder 101.

[0027] The present invention discloses a sample collection device for soil ecological restoration. In the present invention, an outer cylinder 101 and an inner cylinder 102 are separately arranged. When sampling soil at different depths, the outer cylinder 101 is retained in the sampling hole. This can prevent soil debris around the sampling hole from flowing into the bottom of the sampling hole to cause mixing of soil samples at different depths, which affects subsequent soil detection. The outer cylinder 101 is connected to the inner cylinder 102 through a slider 3, so that the inner cylinder 102 and the outer cylinder 101 are driven at the same time. Soil will enter the inner cylinder 102 for sampling and storage, while the outer cylinder 101 will be retained in the sampling hole to compact the soil on the side wall of the sampling hole. This can prevent soil debris on the side wall of the sampling hole from falling off, and improve the accuracy of soil sampling at different depths. The present invention discloses a sample collection device for soil ecological restoration. It is easy and quick to use, solves the problem of soil mixing existing in actual sampling through a tiny structure, and has excellent generalizability.

[0028] When the device provided in the present invention is sampling, the slider 3 is aligned with the slide groove 2 opened on the inner side of the outer cylinder 101, and the inner cylinder 102 is inserted into the outer cylinder 101. At this time, the inner cylinder 102 is driven to rotate by the driving component 4. Under the action of the provided slider 3, the outer cylinder 101 will rotate together with the inner cylinder 102, and the soil is broken and drilled by the provided crushing member 5. Then, the outer cylinder 101 and the inner cylinder 102 are pressed downward by the driving component 4, so that the sample soil enters the inner cylinder 102 to complete the sampling.

[0029] After a sampling work is completed, the inner cylinder 102 is lifted up by the driving component 4, and the slider 3 is completely taken out from the slide 2. At this time, the outer cylinder 101 is retained in the mined sampling hole to squeeze the side wall of the sampling hole to prevent the soil debris around the sampling hole from flowing into the bottom of the sampling hole due to loose soil, causing the mixing of soils at different depths. After the inner cylinder 102 is separated from the outer cylinder 101, the inner cylinder 102 is opened and the soil sample taken in the inner cylinder 102 is pushed out by the pusher and stored in the sample container. When sampling is required again, the adjacent outer cylinder 101 is first connected through the connecting piece 8. The outer cylinder 101 is spliced, and the slide grooves 2 opened in the spliced ​​outer cylinder 101 are in line. At this time, the slider 3 is re-extended into the slide groove 2, and the inner cylinder 102 is pressed down by the driving component 4, so that the inner cylinder 102 continues to move downward to the bottom of the outer cylinder 101 at the bottom. At this time, the above action is repeated by the driving component 4 to complete the sampling of soil at different depths. Different numbers of outer cylinders 101 are connected according to the sampling situation. Under the action of multiple outer cylinders 101, the soil on the inner wall of the sampling hole is always in a compacted state, which can completely prevent soil debris around the sampling hole from flowing into the bottom of the sampling hole, thereby ensuring the accuracy of the collected samples.

[0030] Preferably, Figure 1 to Figure 4 As shown, the crushing member 5 includes a connecting ring 51, which is fixedly connected to the bottom of the outer cylinder 101. The connecting ring 51 is fixedly connected to a plurality of crushing blades 52 in an array along its axial direction. The connecting ring 51 coincides with the axis of the outer cylinder 101 and has the same cross-section as the outer cylinder 101.

[0031] In the present invention, a connecting ring 51 is arranged at the bottom of the outer cylinder 101, and a crushing blade 52 is arranged on the peripheral side of the connecting ring 51. When the sampling tube is driven by the driving component 4, the connecting ring 51 will rotate together and drive the crushing blade 52 to crush the soil. The connecting ring 51 coincides with the axis of the outer cylinder 101 and has the same cross-section as the outer cylinder 101, ensuring that the outer wall of the outer cylinder 101 is in close contact with the inner wall of the sampling hole.

[0032] Preferably, Figure 1 to Figure 5 As shown, the inner cylinder 102 is formed by splicing two identical arc-shaped plates 1021, and the slider 3 serves as a connecting part for a pair of arc-shaped plates 1021 to be spliced ​​and buckled. The slider 3 includes a first connecting block 31, and the first connecting block 31 is arranged as a pair. The pair of first connecting blocks 31 are respectively fixedly connected to the pair of arc-shaped plates 1021, and the side of the pair of first connecting blocks 31 away from the arc-shaped plates 1021 is fixedly connected with a second connecting block 32. When the pair of second connecting blocks 32 are buckled, they perfectly fit with the slide groove 2. The volume of the first connecting block 31 is smaller than that of the second connecting block 32. The pair of first connecting blocks 31 are connected by a connecting screw 33.

[0033] In the present invention, the inner cylinder 102 is formed by two identical arc-shaped plates 1021 that are buckled together. The slider 3, on the one hand, serves as a driving limit for allowing the inner cylinder 102 and the outer cylinder 101 to rotate simultaneously. On the other hand, it serves as a connecting member 8 for buckling a pair of arc-shaped plates 1021. The pair of arc-shaped plates 1021 are buckled together, and a pair of first connecting blocks 31 are connected by a connecting screw 33, and the pair of arc-shaped plates 1021 are spliced ​​into the inner cylinder 102 as a whole. Moreover, the volume of the first connecting block 31 is smaller than that of the second connecting block 32. The second connecting block 32 is arranged in cooperation with the slide groove 2. The small volume of the first connecting block 31 can prevent the protruding part of the connecting screw 33 from affecting the normal driving of the slider 3.

[0034] Preferably, Figure 1 to Figure 5 As shown, a cover 6 is fixedly connected to the top of the inner cylinder 102, and any one of the arc plates 1021 is fixedly connected to the cover 6. A pusher 7 is provided on one side of the arc plate 1021 of the cover 6. The pusher 7 includes a telescopic rod 71. The telescopic rod 71 coincides with the axis of the inner cylinder 102 and is fixedly connected to the cover 6. A push plate 72 is slidably fitted on the inner wall of the inner cylinder 102. The connecting member 8 includes a plurality of plug blocks 81. A plurality of plug blocks 81 are fixedly connected to the top of the outer cylinder 101 in a circular array. A slot 82 matching the plug block 81 is provided at the bottom of the other outer cylinder 101 spliced ​​therewith. A limiting hole 83 is provided on the plug block 81. A horizontally arranged limiting rod 84 is slidably embedded in the outer cylinder 101. The limiting rod 84 passes through the outer cylinder 101 and is inserted into the limiting hole 83.

[0035] In the present invention, a sealing cover 6 is provided at the top of the inner cylinder 102 and any one of the arc plates 1021 is fixedly connected to the sealing cover 6. Whenever a sampling is completed, the connecting screw 33 is removed to separate the pair of arc plates 1021. The staff pulls the push plate 72 to make it slide in the arc plate 1021 under the action of the telescopic rod 71, thereby pushing out the soil sample stored in the arc plate 1021 completely, thereby ensuring the integrity of soil samples at different depths.

[0036] Preferably, Figure 6As shown, it also includes a support assembly 9, which includes a support seat 91. Rollers 92 are fixedly arranged at the bottom corners of the support seat 91. A through hole 93 for sampling is arranged in the middle of the support seat 91. A vertically arranged fixed plate 10 is fixedly connected to the support seat 91. A horizontally arranged first support plate 11 is fixedly connected to the top of the fixed plate 10. The drive assembly 4 includes a vertically arranged cylinder 41. The cylinder 41 is fixedly connected to the bottom of the first support plate 11. The output end of the cylinder 41 is fixedly connected to the second support plate 42. The bottom of the second support plate 42 is fixedly connected to a motor 43. The output end of the motor 43 is fixedly connected to the cover. A stabilizing assembly 12 is provided on the support seat 91. The stabilizing assembly 12 includes a limiting screw 121. The limiting screw 121 is vertically threaded and inserted on the support seat 91. The bottom end of the limiting screw 121 is fixedly connected to a limiting disk. The outer diameter of the motor 43 is smaller than the outer diameter of the inner cylinder 102.

[0037] The present invention further provides a corresponding support assembly 9, wherein the support seat 91 supports the fixed plate 10, the fixed plate 10 supports the first support plate 11, the first support plate 11 supports the driving assembly 4, and the driving assembly 4 is composed of a cylinder 41 and a motor 43. The motor 43 drives the sampling tube to rotate, and the soil is crushed by the crushing member 5. The sampling tube and the motor 43 are pushed down together by the cylinder 41 to perform soil sampling. In the present invention, the outer diameter of the motor 43 is smaller than the outer diameter of the inner tube 102, so as to ensure that the motor 43 can enter the outer tube 101, and multiple sampling can be performed according to the situation.

[0038] The method of using the soil ecological restoration sample collection device of the present invention is as follows:

[0039] Push the support seat 91 into the site where sampling is required, select the position of the sampling hole, align the slider 3 with the slide groove 2 opened on the inner side of the outer cylinder 101, insert the inner cylinder 102 into the outer cylinder 101, and with the cooperation of the motor 43 and the cylinder 41, make the sampling tube pass through the through hole 93 opened on the support seat 91 for drilling sampling. Under the action of the slider 3, the outer cylinder 101 will rotate with the inner cylinder 102, and the soil will be crushed and drilled by the crushing member 5, and then the outer cylinder 101 and the inner cylinder 102 will be pressed down by the drive component 4, so that the sample soil enters the inner cylinder 102 to complete the sampling.

[0040] After a sampling work is completed, the inner cylinder 102 is lifted up by the driving component 4, and the slider 3 is completely removed from the slide 2. At this time, the outer cylinder 101 remains in the mined sampling hole to squeeze the side wall of the sampling hole to prevent the soil debris around the sampling hole from flowing into the bottom of the sampling hole due to loose soil, causing mixing of soils at different depths.

[0041] After the inner cylinder 102 is separated from the outer cylinder 101, the inner cylinder 102 is opened and the soil sample taken from the inner cylinder 102 is pushed out by the pusher and stored in the sample container. When sampling is needed again, the adjacent outer cylinders 101 are first spliced ​​together by the connecting piece 8, and the slide grooves 2 opened in the outer cylinder 101 after splicing are in line. At this time, the slider 3 is re-extended into the slide groove 2, and the inner cylinder 102 is pressed down by the driving component 4, so that the inner cylinder 102 continues to move downward to the bottom of the outer cylinder 101 at the bottom. At this time, the above action is repeated by the driving component 4 to complete the sampling of soil at different depths. Different numbers of outer cylinders 101 are connected according to the sampling situation. Under the action of multiple outer cylinders 101, the soil on the inner wall of the sampling hole is always in a compacted state, which can completely prevent soil debris around the sampling hole from flowing into the bottom of the sampling hole, thereby ensuring the accuracy of the collected samples.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sample collection device for soil ecological restoration, characterized in that: The invention comprises a sampling tube (1) for sampling, wherein the sampling tube (1) comprises: The outer cylinder (101) is provided in plurality, and the plurality of the outer cylinders (101) are detachably connected to each other via a connecting piece (8), and a slide groove (2) is provided on the inner side wall of the outer cylinder (101) along the vertical direction thereof; The inner cylinder (102) is vertically arranged in the outer cylinder (101), and the outer wall of the inner cylinder (102) is arranged in close contact with the inner wall of the outer cylinder (101); A sliding block (3) is slidably inserted into the sliding groove (2) and fixedly connected to the outer wall of the inner cylinder (102); A driving assembly (4) is arranged at the top of the inner cylinder (102), and an adjusting end of the driving assembly (4) is fixedly connected to the top of the inner cylinder (102) and is used to drive the inner cylinder (102) to slide in the outer cylinder (101) and to be axially rotated; The crushing element (5) is fixedly arranged at the bottom of the outer cylinder (101).

2. A soil ecological restoration sample collection device as claimed in claim 1, characterized in that: The inner cylinder (102) is formed by splicing two identical arc-shaped plates (1021).

3. A soil ecological restoration sample collection device as claimed in claim 3, characterized in that: The slider (3) comprises a first connecting block (31), the first connecting block (31) is arranged as a pair, the pair of the first connecting blocks (31) are respectively fixedly connected to the pair of the arc-shaped plates (1021), the side of the pair of the first connecting blocks (31) away from the arc-shaped plates (1021) is fixedly connected to a second connecting block (32), the pair of the second connecting blocks (32) perfectly fits with the slide groove (2) when buckled, the volume of the first connecting block (31) is smaller than the volume of the second connecting block (32), and the pair of the first connecting blocks (31) are connected by a connecting screw (33).

4. A soil ecological restoration sample collection device as claimed in claim 3, characterized in that: A sealing cover (6) is fixedly connected to the top of the inner cylinder (102), and any one of the arc plates (1021) is fixedly connected to the sealing cover (6). The sealing cover (6) is provided with a pusher (7) on one side of the arc plate (1021), and the pusher (7) comprises a telescopic rod (71), the telescopic rod (71) coincides with the axis of the inner cylinder (102) and is fixedly connected to the sealing cover (6); and a push plate (72) is slidably fitted with the inner wall of the inner cylinder (102) and is fixedly connected to the telescopic rod (71).

5. A soil ecological restoration sample collection device as claimed in claim 1, characterized in that: The connecting member (8) comprises a plurality of plug blocks (81), wherein the plurality of plug blocks (81) are fixedly connected to the top end of the outer cylinder (101) in a circumferential array, and a slot (82) matching the plug block (81) is provided at the bottom end of another outer cylinder (101) spliced ​​therewith, and a limiting hole (83) is provided on the plug block (81), and a horizontally arranged limiting rod (84) is slidably embedded in the outer cylinder (101), and the limiting rod (84) passes through the outer cylinder (101) and is inserted into the limiting hole (83).

6. A soil ecological restoration sample collection device as claimed in claim 1, characterized in that: The crushing member (5) comprises a connecting ring (51), wherein the connecting ring (51) is fixedly connected to the bottom of the outer cylinder (101), and the connecting ring (51) is fixedly connected to a plurality of crushing blades (52) in an array along its axial direction.

7. A soil ecological restoration sample collection device as claimed in claim 4, characterized in that: The driving assembly (4) comprises a vertically arranged cylinder (41), the output end of the cylinder (41) is fixedly connected to a second support plate (42), the bottom of the second support plate (42) is fixedly connected to a motor (43), the output end of the motor (43) is fixedly connected to the sealing cover (6), and the outer diameter of the motor (43) is smaller than the outer diameter of the inner cylinder (102).

8. A soil ecological restoration sample collection device as claimed in claim 5, characterized in that: The connecting ring (51) coincides with the axis of the outer cylinder (101) and has the same cross section as the outer cylinder (101).

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