Garden stratum deep soil sampling device and sampling method thereof

Abstract

The invention discloses a garden stratum deep soil sampling device and a sampling method thereof, and belongs to the field of stratum testing. A garden stratum deep soil sampling device comprises a drill rod and further comprises a drill bit fixed to the bottom of the drill rod; the sleeve rod is connected to the drill rod in a sleeving manner; the arc-shaped elastic pieces are circumferentially fixed to the drill bit at equal intervals, the upper ends of the arc-shaped elastic pieces are fixedly connected with the lower end of the sleeve rod, and the outer diameter of the arc-shaped elastic pieces is the same as that of the sleeve rod; the storage area is arranged between the arc-shaped elastic piece and the drill rod; the top plate is fixed on the sleeve rod; the bearing plate is fixed at the top end of the drill rod; by adopting the deformation sampling of the arc-shaped elastic sheet, the force required by the drill rod to be inserted into the deep part of the stratum is reduced, the drill rod can be conveniently inserted downwards, and the sampling accuracy is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of stratum testing, and in particular to a garden stratum deep soil sampling device and a sampling method thereof. Background Art

[0002] The strata are mainly divided into topsoil, subsoil and subsoil layers. The subsoil layer, also known as the "raw soil layer", is the middle layer of the soil profile, located between the topsoil and subsoil layers. It is formed by materials leached from the topsoil, usually referring to the soil layer below the topsoil to a depth of 50 cm. Due to the movement and deposition of materials, the topsoil and subsoil layers can best reflect the characteristics of the soil formation process. In garden construction, it is necessary to sample and test the soil in the subsoil layer in order to make corresponding garden construction plans. When testing the subsoil layer, a sampling device is required to sample and test the soil in the stratum where it is located.

[0003] The current sampling device uses a hollow tube directly from top to bottom as a whole, which is more difficult when pressing down the drill rod. In addition, the excavation method is also time-consuming and labor-intensive, and may cause the soil of the topsoil layer to fall into the subsoil layer, affecting its test results. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a garden stratum deep soil sampling device and a sampling method thereof which can overcome the above problems or at least partially solve the above problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A deep soil sampling device for garden strata comprises: a drill rod, and also comprises: a drill bit fixed at the bottom of the drill rod; a sleeve rod sleeved on the drill rod; a plurality of arc-shaped spring pieces fixed on the drill bit at equidistant intervals in a circle, the upper end of the arc-shaped spring piece is fixedly connected to the lower end of the sleeve rod, and the outer diameter of the arc-shaped spring piece is the same as the outer diameter of the sleeve rod; a storage area is arranged between the arc-shaped spring piece and the drill rod; a top plate is fixed on the sleeve rod; a bearing plate is fixed on the top end of the drill rod; a driving component for driving the top plate to rise and fall, which is arranged between the top plate and the bearing plate; a rotating component for driving the bearing plate, which is arranged on the bearing plate; a limit baffle fixed on the drill rod, and the limit baffle matches the arc-shaped spring piece; a limit ring matching the sleeve rod is fixedly connected to the drill rod.

[0007] Preferably, the driving assembly includes a telescopic rod symmetrically fixed on the supporting plate, the rotating assembly includes a rotating frame rotating on the supporting plate, a motor is fixedly connected inside the rotating frame, the output end of the motor is fixedly connected to the supporting plate, a handle is symmetrically fixedly connected to the rotating frame, and a controller is fixedly connected to the top of the rotating frame.

[0008] Preferably, one side of the arc-shaped spring piece is fixedly connected to an elastic sheet, the elastic sheet is arranged in an arc shape, and a limiting groove is arranged on one side of the arc-shaped spring piece away from the elastic sheet, and the limiting groove matches the elastic sheet.

[0009] In order to facilitate cutting of the root system, further, a cutting edge is provided on a side of the elastic sheet away from the arc-shaped spring sheet, and a first cutting portion matching the cutting edge is provided on the limiting groove.

[0010] In order to prevent the edge of the elastic sheet from sliding out of the limiting groove, further, limiting parts are symmetrically arranged at both ends of the elastic sheet, and the limiting parts match the limiting groove.

[0011] In order to facilitate the elastic sheet to enter the limiting groove, further, a recessed area is provided in the middle of the elastic sheet, and transition areas are symmetrically provided on both sides of the recessed area.

[0012] In order to facilitate the deformation of the arc-shaped spring piece, further, an open portion is provided in the middle of the arc-shaped spring piece, and the thickness of the open portion is smaller than the thickness of the two ends of the arc-shaped spring piece.

[0013] In order to improve the cutting effect of the elastic sheet on the root system, further, a first circular arc area is symmetrically arranged on the elastic sheet, and the first circular arc area matches the first cutting portion.

[0014] In order to facilitate the scraping of the soil on the side wall of the borehole, further, when the top plate moves downward, the arc-shaped spring pieces bend, a crescent gap is formed between two adjacent arc-shaped spring pieces, and the middle part of the elastic piece is inclined outward.

[0015] A method for sampling deep soil in a garden stratum mainly comprises the following steps:

[0016] Step 1: Select a flat area in the topsoil layer of the stratum to be tested, and clean up the fallen leaves and other impurities in the topsoil layer;

[0017] Step 2: Insert the drill bit into the ground, and then press down the drill rod to make the drill bit vertically inserted into the formation to be tested;

[0018] Step 3: The top plate is driven downward by the driving assembly to open the multiple arc-shaped spring pieces, and then the drill rod and the casing rod are driven to rotate synchronously by the rotating assembly to scrape the soil on the side wall of the borehole of the test formation, so that part of the soil falls into the storage area;

[0019] Step 4: The top plate is driven upward by the driving assembly to reset the multiple arc-shaped spring pieces and wrap the soil in the storage area;

[0020] Step 5: Pull out the drill rod, and then drive the top plate downward through the driving assembly to bend the arc-shaped spring piece and take out the soil in the storage area.

[0021] Compared with the prior art, the present invention provides a garden stratum deep soil sampling device, which has the following beneficial effects:

[0022] 1. The garden stratum deep soil sampling device drives the top plate to move downward through the driving component, so that multiple arc-shaped spring pieces are opened, and the rotating component drives the drill rod and the casing rod to rotate. At this time, the arc-shaped spring pieces scrape the soil on the side wall of the borehole of the stratum to be measured, and part of the soil falls into the storage area. After the sampling is completed, the top plate is driven to reset by the driving component, and multiple arc-shaped spring pieces are used to seal the storage area to prevent the sampled soil from falling and prevent the soil of other strata from entering the storage area. By adopting the deformation sampling of the arc-shaped spring pieces, the force required for the drill rod to be inserted into the deep stratum is reduced, which is convenient for the drill rod to be inserted downward and effectively improves the accuracy of sampling.

[0023] 2. The deep soil sampling device for the garden stratum first controls the telescopic rod to slowly extend downward for a distance through the controller, and at the same time controls the motor to rotate to bend the arc-shaped spring piece. At this time, the elastic piece blocks the crescent gap to prevent the soil from entering the storage area. At this time, the gradually bent arc-shaped spring piece rotates to squeeze the side wall of the borehole of the stratum to be sampled, so that the soil on the side wall of the borehole of the stratum to be sampled is compacted, effectively preventing the soil on the upper side of the sampling area from falling and affecting the accuracy of its sampling.

[0024] 3. The deep soil sampling device for the garden stratum controls the resetting of the telescopic rod through a controller. When there are plant roots in the stratum to be sampled, the roots may be sandwiched between the elastic sheet and the arc-shaped spring sheet. At this time, the cutting edge on the elastic sheet and the first cutting part on the limiting groove cut the tree roots, thereby effectively ensuring the resetting of the arc-shaped spring sheet, and further effectively preventing the soil from other strata from entering the storage area and affecting the test results during the extraction of the drill rod.

[0025] The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology. The present invention adopts deformation sampling of arc-shaped spring pieces to reduce the force required for inserting the drill rod deep into the formation, facilitate the downward insertion of the drill rod, and effectively improve the accuracy of sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of a garden stratum deep soil sampling device proposed by the present invention;

[0027] Figure 2 A cross-sectional schematic diagram of a garden stratum deep soil sampling device proposed by the present invention;

[0028] Figure 3This is a schematic structural diagram of a curved spring piece in a garden stratum deep soil sampling device proposed by the present invention in an unopened state;

[0029] Figure 4 This is a schematic diagram of the connection structure between the arc-shaped spring piece and the elastic piece in a garden stratum deep soil sampling device proposed by the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of the sampling state of a garden stratum deep soil sampling device proposed by the present invention;

[0031] Figure 6 A schematic diagram of the structure of the arc-shaped spring in the open state of a garden stratum deep soil sampling device proposed by the present invention Figure 1 ;

[0032] Figure 7 A schematic diagram of the structure of the arc-shaped spring in the open state of a garden stratum deep soil sampling device proposed by the present invention Figure 2 ;

[0033] Figure 8 A schematic diagram of the structure of the arc-shaped spring in the open state of a garden stratum deep soil sampling device proposed by the present invention Figure 3 .

[0034] In the figure: 1. drill rod; 101. limit ring; 102. storage area; 103. drill bit; 104. load-bearing plate; 105. rotating frame; 106. handle; 107. controller; 108. motor; 109. telescopic rod; 110. limit baffle; 2. sleeve rod; 201. top plate; 3. arc-shaped spring piece; 301. limit groove; 302. first cutting part; 303. opening part; 304. crescent gap; 4. elastic sheet; 401. limit part; 402. first arc area; 403. transition area; 404. recessed area; 405. cutting edge. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Example 1: Reference Figure 1-Figure 8A deep soil sampling device for garden strata comprises: a drill rod 1, and also comprises: a drill bit 103 fixed at the bottom of the drill rod 1; a sleeve rod 2 sleeved on the drill rod 1; a plurality of arc-shaped spring pieces 3 fixed on the drill bit 103 at equidistant intervals on the circumference, the upper end of the arc-shaped spring piece 3 is fixedly connected to the lower end of the sleeve rod 2, and the outer diameter of the arc-shaped spring piece 3 is the same as the outer diameter of the sleeve rod 2; a storage area 102 is arranged between the arc-shaped spring piece 3 and the drill rod 1; a top plate 201 is fixed on the sleeve rod 2; a bearing plate 104 is fixed on the top of the drill rod 1; a driving component for driving the top plate 201 to rise and fall, arranged between the top plate 201 and the bearing plate 104; a rotating component for driving the bearing plate 104, arranged on the bearing plate 104; a limit stopper 110 fixed on the drill rod 1, and the limit stopper 110 matches the arc-shaped spring piece 3; a limit ring 101 matching the sleeve rod 2 is fixedly connected to the drill rod 1.

[0037] When sampling the deep soil of the garden stratum, first clean the sampling point, insert the drill bit 103 downward into the topsoil layer, and then press down the drill rod 1 to insert the drill rod 1 and the casing rod 2 into the deep stratum. The length of the drill rod 1 on the ground is measured in real time by an external measuring ruler to determine the depth of the drill rod 1 downward insertion. When the drill bit 103 is inserted into the stratum to be measured, stop inserting the drill rod 1 downward.

[0038] During the sampling process, the top plate 201 is first driven downward by the driving assembly, and the top plate 201 presses the sleeve rod 2 to slide downward, and the carrying plate 104 is held to keep the carrying plate 104 stationary, and the sleeve rod 2 slides downward to open the multiple arc-shaped spring pieces 3. When the arc-shaped spring pieces 3 are fully opened, the drill rod 1 and the sleeve rod 2 are driven to rotate by the rotating assembly. At this time, the arc-shaped spring pieces 3 scrape the soil on the side wall of the borehole of the formation to be measured, and part of the soil falls into the storage area 102. After the sampling is completed, the top plate 201 is driven by the driving assembly to 1 is reset, and the plurality of arc-shaped spring pieces 3 seal the storage area 102 to prevent the sampled soil from falling and prevent the soil from other strata from entering the storage area 102. Finally, the drill rod 1 is pulled out upward, and the top plate 201 is driven downward by the driving assembly to bend the plurality of arc-shaped spring pieces 3 to take out the soil in the storage area 102. By adopting the deformation sampling of the arc-shaped spring pieces 3, the force required for the drill rod 1 to be inserted into the deep stratum is reduced, which facilitates the downward insertion of the drill rod 1 and effectively improves the accuracy of sampling.

[0039] Example 2: Reference Figure 1-Figure 8, a garden stratum deep soil sampling device, is basically the same as Example 1, further, the driving component includes a telescopic rod 109 symmetrically fixed on the bearing plate 104, the rotating component includes a rotating frame 105 rotating on the bearing plate 104, a motor 108 is fixedly connected inside the rotating frame 105, the output end of the motor 108 is fixedly connected to the bearing plate 104, a handle 106 is symmetrically fixedly connected to the rotating frame 105, and a controller 107 is fixedly connected to the top of the rotating frame 105.

[0040] One side of the arc-shaped spring piece 3 is fixedly connected with an elastic piece 4 , which is arranged in an arc shape. A limiting groove 301 is arranged on one side of the arc-shaped spring piece 3 away from the elastic piece 4 , and the limiting groove 301 matches the elastic piece 4 .

[0041] A cutting edge 405 is disposed on one side of the elastic sheet 4 away from the arc-shaped elastic sheet 3 , and a first cutting portion 302 matching the cutting edge 405 is disposed on the limiting groove 301 .

[0042] When sampling the soil deep in the stratum, the staff holds the handle 106, and the controller 107 first controls the telescopic rod 109 to slowly extend downward for a distance. At the same time, the motor 108 is controlled to rotate to bend the arc-shaped spring piece 3. At this time, the elastic piece 4 blocks the crescent gap 304 to prevent the soil from entering the storage area 102. At this time, the gradually bent arc-shaped spring piece 3 rotates to squeeze the side wall of the borehole of the stratum to be sampled, so that the soil on the side wall of the borehole of the stratum to be sampled is compacted, which effectively prevents the soil on the upper side of the sampling area from falling and affecting the accuracy of its sampling.

[0043] When the controller 107 controls the telescopic rod 109 to slowly extend the specified length, the controller 107 controls the motor 108 to turn off, and then the controller 107 continues to control the telescopic rod 109 to intermittently extend to extrude the top plate 201. When the telescopic rod 109 is extended a certain distance, the controller 107 controls the motor 108 to rotate a specified angle, and the soil on the side wall of the borehole is scraped by the elastic sheet 4 and falls into the storage area 102, thereby effectively preventing it from falling and uniformly obtaining the soil on the side wall of the borehole, effectively improving the accuracy of the formation test.

[0044] After the sampling is completed, the controller 107 controls the telescopic rod 109 to reset. When there are plant roots in the stratum to be sampled, the roots may be sandwiched between the elastic sheet 4 and the arc-shaped spring sheet 3. At this time, the cutting blade 405 on the elastic sheet 4 and the first cutting portion 302 on the limiting groove 301 cut the tree roots, thereby effectively ensuring the reset of the arc-shaped spring sheet 3, and then effectively preventing the soil from other strata from entering the storage area 102 during the extraction of the drill rod 1 and affecting its test results.

[0045] Example 3: Reference Figure 1-Figure 8A garden stratum deep soil sampling device is basically the same as Example 1, and further, limiting parts 401 are symmetrically arranged at both ends of the elastic sheet 4, and the limiting parts 401 match the limiting grooves 301.

[0046] A recessed area 404 is provided in the middle of the elastic sheet 4 , and transition areas 403 are symmetrically provided on both sides of the recessed area 404 .

[0047] The elastic sheet 4 is symmetrically provided with a first arc area 402 , and the first arc area 402 matches the first cutting portion 302 .

[0048] When the arc-shaped spring piece 3 is gradually bent, the middle part of the elastic piece 4 is exposed first. When the arc-shaped spring piece 3 is completely bent to the set position, the limiting part 401 limits the elastic piece 4, effectively preventing the elastic piece 4 from completely sliding out of the limiting groove 301 and affecting the reset of the arc-shaped spring piece 3.

[0049] When the arc-shaped spring piece 3 is reset, the intersection of the elastic piece 4 and the first cutting portion 302 of the limiting groove 301 gradually moves toward the middle, and the thicker roots move with the intersection of the first cutting portion 302 and the elastic piece 4, thereby effectively improving the cutting effect on the plant roots.

[0050] The arc diameter of the first arc area 402 is greater than the arc diameter of the limiting portion 401 , so that the roots can slide quickly on the first arc area 402 , thereby effectively improving the cutting effect on the roots.

[0051] By providing the recessed area 404 , the elastic sheet 4 after bending can be completely received in the limiting groove 301 , and the middle part of the elastic sheet 4 can be effectively prevented from being excessively bent and damaged.

[0052] Example 4: Reference Figure 1-Figure 8 A garden stratum deep soil sampling device is basically the same as Example 1, and further, an opening portion 303 is provided in the middle of the arc-shaped spring piece 3, and the thickness of the opening portion 303 is less than the thickness of the two ends of the arc-shaped spring piece 3.

[0053] When the arc-shaped spring piece 3 is bent, the opening portion 303 of the arc-shaped spring piece 3 is bent first, and the bending arc of the opening portion 303 is greater than the bending degree of the two ends of the arc-shaped spring piece 3. The arc-shaped spring piece 3 drives the bending degree of the middle part of the elastic piece 4 to increase, thereby facilitating the scraping of the soil on the side wall of the borehole, and the limit baffle 110 is used to make the arc-shaped spring piece 3 bend outward first, and then make the arc-shaped spring piece 3 bend outward as a whole, thereby effectively preventing the arc-shaped spring piece 3 from bending into the storage area 102.

[0054] Example 5: Reference Figure 1-Figure 8, a garden stratum deep soil sampling device, is basically the same as Example 1, and further, when the top plate 201 moves downward, the arc-shaped spring piece 3 bends, a crescent gap 304 is formed between two adjacent arc-shaped spring pieces 3, and the middle part of the elastic piece 4 is inclined outward.

[0055] When the arc-shaped spring piece 3 is fully bent and opened, the elastic piece 4 tilts outward, and the outward tilt angle of the elastic piece 4 from the transition zone 403 to the limiting portion 401 gradually decreases, thereby facilitating the elastic piece 4 to scrape and sample the soil on the side wall of the borehole, and the outward-tilted elastic piece 4 and the limiting groove 301 have a mutual squeezing force, thereby effectively improving the cutting effect on the root system in the soil.

[0056] Embodiment 6: A method for sampling deep soil in a garden stratum, mainly comprising the following steps:

[0057] Step 1: Select a flat area in the topsoil layer of the stratum to be tested, and clean up the fallen leaves and other impurities in the topsoil layer;

[0058] Step 2: insert the drill bit 103 into the ground, and then press down the drill rod 1 to vertically insert the drill bit 103 into the stratum to be tested;

[0059] Step 3: The top plate 201 is driven downward by the driving assembly to open the multiple arc-shaped spring pieces 3, and then the drill rod 1 and the casing rod 2 are driven to rotate synchronously by the rotating assembly to scrape the soil on the side wall of the borehole of the test formation, so that part of the soil falls into the storage area 102;

[0060] Step 4: The top plate 201 is driven upward by the driving assembly to reset the plurality of arc-shaped spring pieces 3 to wrap the soil in the storage area 102;

[0061] Step 5: Pull out the drill rod 1 , and then drive the top plate 201 downward through the driving assembly to bend the arc-shaped spring piece 3 to take out the soil in the storage area 102 .

[0062] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A garden stratum deep soil sampling device, comprising: The drill rod (1) is characterized by further comprising: A drill bit (103) fixed at the bottom of the drill rod (1); A sleeve rod (2) sleeved on the drill rod (1); A plurality of arc-shaped spring pieces (3) are fixed on the drill bit (103) at equal intervals on the circumference, the upper ends of the arc-shaped spring pieces (3) are fixedly connected to the lower end of the sleeve rod (2), and the outer diameter of the arc-shaped spring pieces (3) is the same as the outer diameter of the sleeve rod (2); A storage area (102) is arranged between the arc-shaped spring sheet (3) and the drill rod (1); A top plate (201) fixed on the sleeve rod (2); A bearing plate (104) fixed on the top end of the drill rod (1); A driving assembly for driving the top plate (201) to rise and fall, arranged between the top plate (201) and the carrying plate (104); A rotating assembly for driving the carrier plate (104), arranged on the carrier plate (104); A limit stopper (110) is fixed on the drill rod (1), and the limit stopper (110) matches the arc-shaped spring piece (3); A limiting ring (101) matching the casing rod (2) is fixedly connected to the drill rod (1).

2. A garden stratum deep soil sampling device according to claim 1, characterized in that: The driving assembly comprises a telescopic rod (109) symmetrically fixed on a carrying plate (104); the rotating assembly comprises a rotating frame (105) rotating on the carrying plate (104); a motor (108) is fixedly connected inside the rotating frame (105); an output end of the motor (108) is fixedly connected to the carrying plate (104); a handle (106) is symmetrically fixedly connected to the rotating frame (105); and a controller (107) is fixedly connected to the top of the rotating frame (105).

3. A garden stratum deep soil sampling device according to claim 1, characterized in that: One side of the arc-shaped spring piece (3) is fixedly connected to an elastic piece (4), the elastic piece (4) is arranged in an arc shape, and a limiting groove (301) is arranged on the side of the arc-shaped spring piece (3) away from the elastic piece (4), and the limiting groove (301) matches the elastic piece (4).

4. A garden stratum deep soil sampling device according to claim 3, characterized in that: A cutting blade (405) is provided on a side of the elastic sheet (4) away from the arc-shaped elastic sheet (3), and a first cutting portion (302) matching the cutting blade (405) is provided on the limiting groove (301).

5. A garden stratum deep soil sampling device according to claim 3, characterized in that: Limiting portions (401) are symmetrically arranged at both ends of the elastic sheet (4), and the limiting portions (401) match the limiting grooves (301).

6. A garden stratum deep soil sampling device according to claim 4, characterized in that: A recessed area (404) is provided in the middle of the elastic sheet (4), and transition areas (403) are symmetrically provided on both sides of the recessed area (404).

7. A garden stratum deep soil sampling device according to claim 3, characterized in that: An opening portion (303) is provided in the middle of the arc-shaped spring piece (3), and the thickness of the opening portion (303) is smaller than the thickness at both ends of the arc-shaped spring piece (3).

8. A garden stratum deep soil sampling device according to claim 4, characterized in that: A first circular arc area (402) is symmetrically arranged on the elastic sheet (4), and the first circular arc area (402) matches the first cutting portion (302).

9. A garden stratum deep soil sampling device according to claim 3, characterized in that: When the top plate (201) moves downward, the arc-shaped spring pieces (3) bend, a crescent gap (304) is formed between two adjacent arc-shaped spring pieces (3), and the middle part of the elastic piece (4) tilts outward.

10. A method for sampling deep soil in a garden stratum, using the device for sampling deep soil in a garden stratum according to claim 1, characterized in that: The main steps include: Step 1: Select a flat area in the topsoil layer of the stratum to be tested, and clean up the fallen leaves and other impurities in the topsoil layer; Step 2: insert the drill bit (103) into the ground, and then press down the drill rod (1) to vertically insert the drill bit (103) into the stratum to be tested; Step 3: The top plate (201) is driven downward by the driving assembly to open the plurality of arc-shaped spring sheets (3), and then the drill rod (1) and the casing rod (2) are driven to rotate synchronously by the rotating assembly to scrape the soil on the side wall of the borehole of the test formation, so that part of the soil falls into the storage area (102); Step 4: The top plate (201) is driven upward by the driving assembly to reset the plurality of arc-shaped spring pieces (3) to wrap the soil in the storage area (102); Step 5: Pull out the drill rod (1), and then drive the top plate (201) downward through the driving assembly to bend the arc-shaped spring sheet (3) and take out the soil in the storage area (102).

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