A soil sampling device and method of using the same

Abstract

The present invention discloses a soil detection sampling device and a method of using the same, including a sampling device body, the sampling device body including a spiral insertion assembly and an internal sampling assembly, the spiral insertion assembly including a first power unit, a second power unit, a mounting seat, a plug-in mounting groove, an insertion shaft, a sharp angle, a spiral blade and a locking power unit. The present invention has the following advantages and effects: the insertion shaft is installed in a detachable plug-in manner, which realizes the independence of the insertion shaft. Even if the spiral blade is damaged, only the insertion shaft needs to be replaced separately, and the entire sampling device body does not need to be discarded, thereby improving resource utilization; the locking power unit can not only lock the insertion shaft inserted into the plug-in mounting groove with the plug-in mounting groove, but also provide power for the internal sampling assembly to move upward, so that the soil can be automatically extracted without manual force, saving time and effort.

Description

Technical Field

[0001] The present invention relates to the field of soil detection, and in particular to a soil detection sampling device and a use method thereof. Background Art

[0002] Soil testing is one of the most important steps to understand the quality of the soil environment. Through this operation, basic data can be provided for the prevention and control of soil pollution hazards and the dynamic analysis of soil pollution levels and development trends. When testing and sampling soil, it is very troublesome to extract samples of the underground soil layer. If you dig a pit directly, it will be time-consuming and laborious. Therefore, a sampling device for soil testing has emerged.

[0003] However, the existing soil testing sampling device has the following defects under actual use conditions:

[0004] First, in order to more easily insert into the underground soil layer, the soil detection sampling device generally has an insertion shaft and a control motor. The outer periphery of the insertion shaft is provided with a spiral blade, which can be easily inserted into the underground soil layer to achieve soil sampling through the rotation of the spiral blade; however, there may be solid particles, stones or hard metals in the soil, and the spiral blade is very prone to rigid collision, and the damage rate of the spiral blade is high. However, the insertion shaft in the existing soil detection sampling device is integrally formed with the soil detection sampling device during production. When the spiral blade outside the insertion shaft is damaged, the entire soil detection sampling device can only be replaced, and the resource utilization rate is low.

[0005] Secondly, in the step of pulling out the soil, it is generally done manually, which is time-consuming and labor-intensive. Summary of the invention

[0006] The object of the present invention is to provide a soil testing sampling device and a method of using the same to solve the problems raised in the background technology.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions:

[0008] In order to achieve the above object, the present invention provides a soil detection sampling device, including a sampling device body, wherein the sampling device body includes:

[0009] A spiral insertion assembly capable of being inserted into the subsurface soil; and

[0010] An internal sampling component is arranged in the spiral insertion component and can be inserted into the underground soil layer along with the spiral insertion component, and then the soil is sampled from bottom to top; wherein,

[0011] The spiral insertion assembly comprises a first power unit capable of vertical height adjustment, a second power unit arranged on the first power unit, and a mounting seat arranged on the second power unit and capable of circumferential rotation driven by the second power unit; a plug-in mounting groove is provided at the lower end of the mounting seat, a vertical insertion shaft is inserted into the plug-in mounting groove, a sharp angle is provided at the lower end of the insertion shaft through threaded engagement, and a spiral blade is fixedly provided on the outer periphery of the insertion shaft;

[0012] The insertion shaft and the plug-in mounting slot form a detachable plug-in connection, and a locking power unit is provided in the mounting seat, which can lock the insertion shaft inserted into the plug-in mounting slot with the plug-in mounting slot; the locking power unit can also provide power for the internal sampling component to move upward.

[0013] Further, the configuration is as follows: the upper end of the insertion shaft has an upper end access seat fixed thereto, the upper end access seat is adapted to the plug-in installation slot and can be inserted upward into the plug-in installation slot; the locking power unit includes an inner expansion block fixed in the plug-in installation slot, a horizontal inner embedded block and a squeezing spring are arranged inside the inner expansion block, and the horizontal inner embedded block will keep moving leftward under the squeezing force of the squeezing spring;

[0014] The left half of the upper end of the upper access seat is provided with an inner expansion slot, and when the upper access seat is inserted into the plug-in installation slot, the inner expansion block will extend into the inner expansion slot; the left side of the upper access seat is provided with a second through hole, and the horizontal embedded block can move leftward and pass through the second through hole;

[0015] The left side wall of the plug-in installation slot is provided with an embedded inner slot, and the horizontal embedded block can be inserted into the embedded inner slot after passing through the second through hole to achieve locking of the upper end access seat and the inner expansion block.

[0016] Further, the configuration is as follows: a transversely penetrating inner expansion cavity is provided inside the inner expansion block, the right side of the inner expansion cavity is open, and a horizontal embedded block and an extrusion spring can be inserted into the inner expansion cavity through the right side of the inner expansion cavity; a blocking block is provided on the left side of the inner expansion cavity, and the blocking block and the inner expansion block are fixed by a first fixing member; a first through hole is formed between the blocking block and the inner wall of the lower end of the inner expansion cavity, and when the inner expansion block is extended into the inner expansion slot, the first through hole and the second through hole will be connected; a side cover plate is provided on the right side cover of the inner expansion cavity, and the side cover plate is fixed to the inner expansion block by a second fixing member; and the two ends of the extrusion spring are respectively connected to the horizontal embedded block and the side cover plate.

[0017] Further, the arrangement is as follows: a square main companion block is arranged on the right side of the upper end of the horizontal embedded block, the main companion block is spliced ​​by a first companion block and a second companion block both of which have a right-angled triangle cross-sectional shape, and the first companion block, the second companion block and the horizontal embedded block are fixed by a third fixing piece; the second companion block can be connected with the blocking block to prevent the horizontal embedded block from escaping from the inner expansion cavity; a first expansion notch with a right-angled triangle cross-sectional shape is provided at the upper left end of the second companion block, a first drainage hole communicating with the first expansion notch is provided at the upper end of the inner expansion block, a second drainage hole communicating with the first drainage hole is provided in the mounting seat, the second drainage hole extends to the right side outer wall of the mounting seat, and a first drainage interface seat communicating with the second drainage hole is fixedly provided on the right side outer wall of the mounting seat.

[0018] Further, the arrangement is as follows: a hollow collecting inner cavity is provided inside the insertion shaft, and a plurality of collecting openings communicating with the collecting inner cavity are provided on the surface of the insertion shaft, and as the insertion shaft is inserted into the underground soil layer and the spiral blade rotates, soil falls from the collecting openings into the collecting inner cavity;

[0019] The internal sampling component includes a loading platform, which is in contact with the inner wall of the collecting cavity. After the soil falls into the collecting cavity, it will remain on the loading platform; the upper end of the loading platform is provided with a counterweight block, and the upper end of the counterweight block is fixedly provided with a vertical displacement rod. The upper end of the displacement rod extends upward and extends into the upper end access seat, and the loading platform with soil remaining thereon is pulled up by pulling up the displacement rod.

[0020] Further, the configuration is as follows: a discharge inner cavity communicating with the collection inner cavity is provided in the upper end access seat, and discharge holes communicating with the discharge inner cavity and the outside are provided on both sides of the lower end of the upper end access seat;

[0021] The two sides of the upper end of the loading platform and the counterweight block are provided with smooth inclined surfaces which are higher inside and lower outside. When the loading platform moves to the discharge inner cavity, the soil remaining on the loading platform will be discharged from the discharge hole along the smooth inclined surfaces.

[0022] Further, the configuration is as follows: a vertical main displacement hole is provided inside the mounting seat, and the second drainage hole bypasses the main displacement hole; a first auxiliary displacement hole is formed inside the upper end of the upper access seat in cooperation with the side cover plate, and when the upper access seat is inserted into the plug-in mounting groove, the first auxiliary displacement hole communicates with the main displacement hole; a second auxiliary displacement hole is provided inside the upper access seat, and the second auxiliary displacement hole is located below the first auxiliary displacement hole and above the discharge inner cavity at the same time, and the first auxiliary displacement hole, the second auxiliary displacement hole and the discharge inner cavity are communicated in sequence, and the upper end of the displacement rod passes upward through the second auxiliary displacement hole and then passes into the first auxiliary displacement hole;

[0023] A side extension block is fixedly provided on the right side of the upper end portion of the shift pull rod through a fourth fixing member, and a secondary accompanying block is fixedly provided on the lower end of the side extension block, and the secondary accompanying block is spliced ​​by a third accompanying block and a fourth accompanying block whose cross-sectional shapes are both right-angled triangles, and the third accompanying block, the fourth accompanying block and the side extension block are fixed by a fifth fixing member; a second expansion notch with a right-angled triangle cross-sectional shape is provided at the lower right end of the fourth accompanying block, a third drainage hole which is communicated with the second expansion notch is provided in the upper end access seat, a fourth drainage hole which can communicate with the third drainage hole is provided in the mounting seat, and a second drainage interface seat which is communicated with the fourth drainage hole is fixedly provided on the right side outer wall of the mounting seat.

[0024] A further configuration is that a positioning top block is fixedly provided on the upper end of the upper end access seat, a positioning top groove adapted to the positioning top block is opened in the plug-in installation groove, and the positioning top block can be connected to the positioning top groove for positioning, so that the first through hole and the second through hole are communicated, and the third drainage hole and the fourth drainage hole are communicated.

[0025] Further, the first power unit includes a bearing seat as a bearing structure, a vertical cylinder is fixedly arranged on the upper end of the bearing seat, an output shaft of the cylinder is arranged upward and fixed with a horizontal displacement support plate, a jacket block is fixedly arranged on the cylinder, an inner hole is opened in the jacket block, a vertical guide shaft is fixedly arranged on the displacement support plate, and the guide shaft passes through the inner hole so that the displacement support plate can stably move vertically;

[0026] The second power unit includes a control motor fixedly arranged at the upper end of the shift support plate, the output shaft of the control motor passes downward to the lower end of the shift support plate, the mounting seat is fixedly arranged on the output shaft of the control motor, and the mounting seat rotates circumferentially driven by the output shaft of the control motor.

[0027] In order to achieve the above object, the present invention also provides a method for using a soil sampling device, comprising the following steps:

[0028] After the motor is controlled to drive the insertion shaft to rotate circumferentially, the cylinder is used to control the insertion shaft to be inserted into the underground soil layer to take soil samples.

[0029] The beneficial effects of the present invention are:

[0030] 1. In the present invention, the insertion shaft in the spiral insertion assembly can be inserted into the soil based on the spiral blade. The first power unit provides power for height adjustment of the insertion shaft, and the second power unit provides power for rotation of the insertion shaft. The insertion shaft is installed in a detachable plug-in manner. Compared with the design pain point of one-piece molding in the prior art, the present invention realizes the independence of the insertion shaft. Even if the spiral blade is damaged, only the insertion shaft needs to be replaced separately, and there is no need to discard the entire sampling device body, thereby improving resource utilization. The locking power unit can not only lock the insertion shaft inserted into the plug-in installation slot with the plug-in installation slot, but also provide power for the internal sampling assembly to move upward. The soil can be automatically extracted without manual force, saving time and effort.

[0031] 2. In the present invention, the upper access seat can be inserted upward into the installation groove, and the inner expansion block can then extend into the inner expansion groove. The horizontal embedded block in the inner expansion block will move to the left under the force of the extrusion spring, and then pass through the second through hole and into the embedded inner groove to achieve locking of the upper access seat and the inner expansion block. The fixing structure is simple and only one inner expansion block is required to achieve fixation.

[0032] 3. In the present invention, the inner expansion cavity is used for the horizontal embedded block and the extrusion spring to be placed and installed. The side cover plate can close the inner expansion cavity and provide a single-end support point for the extrusion spring.

[0033] 4. In the present invention, the first companion block can connect and fix the horizontal embedded block and the second companion block, and the second companion block can be connected to the blocking block to prevent the horizontal embedded block from leaving the inner expansion cavity. The first expansion notch can receive the inserted gas, and the continuous introduction of gas will cause the first expansion notch to expand and expand continuously, thereby pushing the second companion block and the horizontal embedded block to move right, making it convenient for the inner expansion block to extend into the inner expansion slot or disassemble the upper end access seat, which has the advantage of convenient installation and disassembly. Gas can be introduced into the first expansion notch through the first drainage interface seat, the second drainage hole and the first drainage hole.

[0034] 5. In the present invention, as the insertion shaft is inserted into the underground soil layer and the spiral blade rotates, the soil will fall from the collection opening into the collection inner cavity, and then fall onto the loading platform; by pulling up the displacement rod, the loading platform can be driven to move up, so that the soil remaining on the loading platform can be collected conveniently.

[0035] 6. In the present invention, the upper access seat will move up to the discharge cavity, and the soil remaining on the stage will be discharged from the discharge hole along the smooth slope. A soil collection box can be set below the discharge hole or a connecting pipe can be connected to an external soil collection box.

[0036] 7. In the present invention, the upper end of the displacement rod will extend into the first auxiliary displacement hole, and the third accompanying block can connect and fix the displacement rod and the fourth accompanying block; the second expansion gap can receive the inserted gas, and the continuous introduction of gas will cause the second expansion gap to expand and expand continuously, thereby pushing the fourth accompanying block and the displacement rod to move upward, realizing the upward pull of the loading platform, and facilitating the removal of soil. Gas can be introduced into the second expansion gap through the second drainage interface seat, the fourth drainage hole and the third drainage hole.

[0037] 8. In the present invention, positioning is achieved by positioning the top block and the top groove, which facilitates installation.

[0038] 9. In the present invention, a cylinder and a control motor are provided to respectively control the height adjustment and rotation of the mounting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural schematic diagram of an embodiment;

[0040] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0041] Figure 3 for Figure 1 Enlarged view of middle part B;

[0042] Figure 4 for Figure 3 Enlarged view of part C in the middle.

[0043] In the figure: 11, mounting seat; 12, plug-in mounting slot; 21, insertion shaft; 22, sharp corner; 23, spiral blade; 24, upper end access seat; 25, inner expansion slot; 31, inner expansion block; 311, inner expansion cavity; 32, horizontal embedded block; 33, extrusion spring; 341, first perforation; 342, second perforation; 343, embedded inner slot; 35, blocking block; 351, first fixing member; 36, side cover; 361, second fixing member; 41, first accompanying block; 42, second accompanying block; 43, third fixing member; 44, first expansion notch; 45, first drainage hole; 46, second drainage hole; 47, first drainage interface seat; 51, collecting inner cavity; 52, collecting opening; 53, loading platform; 54, counterweight block; 55, shifting rod; 56, discharging inner cavity; 57, discharging hole; 58, smooth inclined surface; 61, main shifting hole; 62, first secondary shifting hole; 63, second secondary shifting hole; 64, fourth fixing piece; 65, side extension block; 71, third accompanying block; 72, fourth accompanying block; 73, fifth fixing piece; 74, second expansion notch; 75, third drainage hole; 76, fourth drainage hole; 77, second drainage interface seat; 81, positioning top block; 82, positioning top groove; 91, bearing seat; 92, cylinder; 93, shifting support plate; 94, outer sleeve block; 95, guide shaft; 96, control motor. DETAILED DESCRIPTION

[0044] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0045] As attached Figures 1 to 4 As shown;

[0046] This embodiment discloses a soil sampling device for testing, including a sampling device body, wherein the sampling device body includes:

[0047] A spiral insertion assembly capable of being inserted into the subsurface soil; and

[0048] An internal sampling component is arranged in the spiral insertion component and can be inserted into the underground soil layer along with the spiral insertion component, and then the soil is sampled from bottom to top; wherein,

[0049] The spiral insertion assembly includes a first power unit capable of vertical height adjustment, a second power unit arranged on the first power unit, and a mounting seat 11 arranged on the second power unit and capable of circumferential rotation driven by the second power unit; a plug-in mounting groove 12 is provided at the lower end of the mounting seat 11, a vertical insertion shaft 21 is inserted into the plug-in mounting groove 12, a sharp corner 22 is provided at the lower end of the insertion shaft 21 through threaded engagement, and a spiral blade 23 is fixedly provided on the outer periphery of the insertion shaft 21;

[0050] The insertion shaft 21 and the plug-in mounting slot 12 form a detachable plug-in connection, and a locking power unit is provided in the mounting seat 11, which can lock the insertion shaft 21 inserted into the plug-in mounting slot 12 with the plug-in mounting slot 12; the locking power unit can also provide power for the internal sampling component to move upward.

[0051] The upper end of the insertion shaft 21 has an upper end access seat 24 fixed thereto, and the upper end access seat 24 is adapted to the plug-in installation slot 12 and can be inserted upward into the plug-in installation slot 12; the locking power unit includes an inner expansion block 31 fixed in the plug-in installation slot 12, and a horizontal inner embedded block 32 and a compression spring 33 are arranged inside the inner expansion block 31, and the horizontal inner embedded block 32 will keep moving left under the compression force of the compression spring 33;

[0052] The left half of the upper end of the upper access seat 24 is provided with an inner expansion slot 25. When the upper access seat 24 is inserted into the plug-in installation slot 12, the inner expansion block 31 will extend into the inner expansion slot 25. The left side of the upper access seat 24 is provided with a second through hole 342. The horizontal embedded block 32 can move leftward and pass through the second through hole 342.

[0053] The left side wall of the plug-in installation slot 12 is provided with an embedded inner slot 343 , and the horizontal embedded block 32 can be inserted into the embedded inner slot 343 after passing through the second through hole 342 , so as to achieve locking of the upper end access seat 24 and the inner expansion block 31 .

[0054] Among them, a transversely penetrating inner expansion cavity 311 is provided inside the inner expansion block 31, and the right side of the inner expansion cavity 311 is open, through which the horizontal embedded block 32 and the extrusion spring 33 can be inserted into the inner expansion cavity 311; a blocking block 35 is provided on the left side of the inner expansion cavity 311, and the blocking block 35 and the inner expansion block 31 are fixed by a first fixing member 351; a first through hole 341 is formed between the blocking block 35 and the inner wall of the lower end of the inner expansion cavity 311, and when the inner expansion block 31 is extended into the inner expansion slot 25, the first through hole 341 and the second through hole 342 will be connected; a side cover plate 36 is provided on the right side cover of the inner expansion cavity 311, and the side cover plate 36 and the inner expansion block 31 are fixed by a second fixing member 361; the two ends of the extrusion spring 33 are respectively connected to the horizontal embedded block 32 and the side cover plate 36.

[0055] Among them, a square main companion block is arranged on the right side of the upper end of the horizontal embedded block 32, and the main companion block is spliced ​​by a first companion block 41 and a second companion block 42, both of which have a right-angled triangle cross-sectional shape. The first companion block 41, the second companion block 42 and the horizontal embedded block 32 are fixed by a third fixing member 43; the second companion block 42 can be connected with the blocking block 35 to prevent the horizontal embedded block 32 from being separated from the inner expansion cavity 311; a first expansion notch 44 with a right-angled triangle cross-sectional shape is provided at the upper left end of the second companion block 42, a first drainage hole 45 communicating with the first expansion notch 44 is provided at the upper end of the inner expansion block 31, a second drainage hole 46 communicating with the first drainage hole 45 is provided in the mounting seat 11, the second drainage hole 46 extends to the right side outer wall of the mounting seat 11, and a first drainage interface seat 47 communicating with the second drainage hole 46 is fixedly provided on the right side outer wall of the mounting seat 11.

[0056] The insertion shaft 21 has a hollow collecting cavity 51 formed inside, and a plurality of collecting openings 52 communicating with the collecting cavity 51 are formed on the surface of the insertion shaft 21. As the insertion shaft 21 is inserted into the underground soil layer and the spiral blade 23 rotates, soil will fall from the collecting openings 52 into the collecting cavity 51.

[0057] The internal sampling component includes a loading platform 53, which is in contact with the inner wall of the collecting cavity 51. After the soil falls into the collecting cavity 51, it will remain on the loading platform 53; the upper end of the loading platform 53 is provided with a counterweight block 54, and the upper end of the counterweight block 54 is fixedly provided with a vertical shift rod 55. The upper end of the shift rod 55 extends upward and extends into the upper end access seat 24, and the loading platform 53 with soil remaining thereon is pulled upward by pulling up the shift rod 55.

[0058] The upper receiving seat 24 is provided with a discharge inner cavity 56 communicating with the collecting inner cavity 51, and both sides of the lower end of the upper receiving seat 24 are provided with discharge holes 57 communicating with the discharge inner cavity 56 and the outside.

[0059] Both sides of the upper ends of the loading platform 53 and the counterweight block 54 have smooth inclined surfaces 58 that are higher inside and lower outside. When the loading platform 53 moves up to the discharge cavity 56, the soil remaining on the loading platform 53 will be discharged from the discharge hole 57 along the smooth inclined surface 58.

[0060] Among them, a vertical main displacement hole 61 is opened inside the mounting seat 11, and the second drainage hole 46 will bypass the main displacement hole 61; the upper end of the upper end access seat 24 is internally matched with the side cover plate 36 to form a first secondary displacement hole 62, and when the upper end access seat 24 is inserted into the plug-in mounting groove 12, the first secondary displacement hole 62 will communicate with the main displacement hole 61; the upper end access seat 24 is internally opened with a second secondary displacement hole 63, and the second secondary displacement hole 63 is located below the first secondary displacement hole 62 and above the discharge inner cavity 56. The first secondary displacement hole 62, the second secondary displacement hole 63 and the discharge inner cavity 56 are sequentially communicated, and the upper end of the displacement rod 55 passes through the second secondary displacement hole 63 upward and then passes into the first secondary displacement hole 62;

[0061] A side extension block 65 is fixedly provided on the right side of the upper end of the shift rod 55 through a fourth fixing member 64, and a secondary accompanying block is fixedly provided on the lower end of the side extension block 65, and the secondary accompanying block is spliced ​​by a third accompanying block 71 and a fourth accompanying block 72, both of which have a right-angled triangle cross-sectional shape. The third accompanying block 71, the fourth accompanying block 72 and the side extension block 65 are fixed by a fifth fixing member 73; a second expansion notch 74 with a right-angled triangle cross-sectional shape is provided at the lower right end of the fourth accompanying block 72, a third drainage hole 75 communicating with the second expansion notch 74 is provided in the upper end access seat 24, a fourth drainage hole 76 communicating with the third drainage hole 75 is provided in the mounting seat 11, and a second drainage interface seat 77 communicating with the fourth drainage hole 76 is fixedly provided on the right side outer wall of the mounting seat 11.

[0062] Among them, a positioning top block 81 is fixedly provided on the upper end of the upper end access seat 24, and a positioning top groove 82 adapted to the positioning top block 81 is opened in the plug-in installation groove 12. The positioning top block 81 can be connected to the positioning top groove 82 for positioning, so that the first through hole 341 and the second through hole 342 are connected, and the third drainage hole 75 and the fourth drainage hole 76 are connected.

[0063] The first power unit includes a bearing seat 91 as a bearing structure, a vertical cylinder 92 is fixedly arranged on the upper end of the bearing seat 91, an output shaft of the cylinder 92 is arranged upward and fixed with a horizontal displacement support plate 93, a jacket block 94 is fixedly arranged on the cylinder 92, an inner hole is opened in the jacket block 94, a vertical guide shaft 95 is fixedly arranged on the displacement support plate 93, and the guide shaft 95 passes through the inner hole, so that the displacement support plate 93 can stably move vertically;

[0064] The second power unit includes a control motor 96 fixedly arranged at the upper end of the shift support plate 93, the output shaft of the control motor 96 passes downward to the lower end of the shift support plate 93, the output shaft of the control motor 96 is fixedly provided with the mounting seat 11, and the mounting seat 11 rotates circumferentially driven by the output shaft of the control motor 96.

[0065] This embodiment also discloses a method for using a soil sampling device, which includes the following steps:

[0066] After the motor 96 is controlled to drive the insertion shaft 21 to rotate in the circumferential direction, the cylinder 92 is used to control the insertion shaft 21 to be inserted into the underground soil layer to perform soil sampling.

[0067] It should be noted that:

[0068] 1. When the soil falls onto the loading platform 53 and the soil is collected, the air cylinder 92 controls the insertion shaft 21 to move out of the underground soil layer, and then pushes the loading platform 53 upward by injecting gas into the second drainage interface seat 77. In this way, the loading platform 53 can be prevented from moving upward and the soil can be prevented from falling from the collection opening 52 into the collection cavity 51, thereby preventing the soil from accumulating at the bottom of the collection cavity 51.

[0069] 2. The sharp corner 22 at the lower end of the insertion shaft 21 is threadedly connected to the insertion shaft 21 to facilitate removal of the sharp corner 22 to discharge the soil remaining at the bottom of the collection cavity 51.

[0070] The working principle of this embodiment is:

[0071] 1. Before installing the insertion shaft 21, gas is introduced into the first drainage interface seat 47, and the gas will pass through the second drainage hole 46 and the first drainage hole 45 to the first expansion gap 44; the continuous introduction of gas will cause the first expansion gap 44 to expand and expand continuously, thereby pushing the second companion block 42 and the horizontal embedded block 32 to move right until the horizontal embedded block 32 is in the second through hole 342, the first through hole 341 or the inner expansion cavity 311; in this way, the horizontal embedded block 32 will not hinder the installation of the upper end access seat 24.

[0072] 2. When installing the insertion shaft 21, insert the upper access seat 24 upward into the plug-in installation slot 12, and align the positioning top block 81 with the positioning top slot 82; in this way, the inner expansion block 31 can extend into the inner expansion slot 25, and the positions of the first through hole 341, the second through hole 342 and the embedded inner slot 343 are connected in sequence; the third drainage hole 75 is connected with the fourth drainage hole 76. Next, cancel the action of inserting gas into the first drainage interface seat 47, the horizontal embedded block 32 will move to the left under the force of the squeezing spring 33, and then penetrate into the embedded inner slot 343 after passing through the first through hole 341 and the second through hole 342, so as to achieve the locking of the upper access seat 24 and the inner expansion block 31, and the installation of the insertion shaft 21 is completed.

[0073] 3. When removing the insertion shaft 21, inject gas into the first drainage interface seat 47, the horizontal embedded block 32 will move rightward and disengage from the embedded inner groove 343, and then apply force to pull down and pull out the insertion shaft 21.

[0074] 4. The normal state of the insertion shaft 21 after assembly is as follows: due to the presence of the counterweight block 54, the loading platform 53 will move down to the bottom.

[0075] 5. When sampling the soil, the control motor 96 controls the insertion shaft 21 to rotate circumferentially, and then the cylinder 92 drives the insertion shaft 21 to move downward, and the insertion shaft 21 will be inserted into the underground soil layer; as the insertion shaft 21 is inserted into the underground soil layer and the spiral blade 23 rotates, the soil will fall from the collection opening 52 into the collection cavity 51, and then fall onto the loading platform 53; after the soil is collected, the cylinder 92 controls the insertion shaft 21 to move out of the underground soil layer.

[0076] 6. Inject gas into the second drainage interface seat 77, and the gas will flow into the second expansion gap 74 through the fourth drainage hole 76 and the third drainage hole 75; the continuous introduction of gas will cause the second expansion gap 74 to expand and expand continuously, thereby pushing the fourth accompanying block 72 and the shift rod 55 to move upward, and the stage 53 will move up to the discharge cavity 56; when the stage 53 moves up to the discharge cavity 56, the soil remaining on the stage 53 will be discharged from the discharge hole 57 along the smooth inclined surface 58; a soil sampling box can be set below the discharge hole 57 or a connecting pipe can be connected to the external soil sampling box.

[0077] 7. After the soil sampling is completed, the action of injecting gas into the second drainage interface seat 77 is cancelled. Due to the existence of the counterweight block 54, the stage 53 will move down to the bottom again.

[0078] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A soil sampling device, characterized in that: The sampling device body includes: A spiral insertion assembly capable of being inserted into the subsurface soil; and An internal sampling component is arranged in the spiral insertion component and can be inserted into the underground soil layer along with the spiral insertion component, and then the soil is sampled from bottom to top; wherein, The spiral insertion assembly comprises a first power unit capable of vertical height adjustment, a second power unit arranged on the first power unit, and a mounting seat (11) arranged on the second power unit and capable of circumferential rotation under the drive of the second power unit; a plug-in mounting groove (12) is provided at the lower end of the mounting seat (11), a vertical insertion shaft (21) is inserted into the plug-in mounting groove (12), a sharp corner (22) is provided at the lower end of the insertion shaft (21) through threaded engagement, and a spiral blade (23) is fixedly provided on the outer periphery of the insertion shaft (21); The insertion shaft (21) and the plug-in installation slot (12) form a detachable plug-in connection, and a locking power unit capable of locking the insertion shaft (21) inserted into the plug-in installation slot (12) and the plug-in installation slot (12) is arranged in the installation seat (11); the locking power unit can also provide power for the internal sampling component to move upward; The upper end of the insertion shaft (21) has an upper end receiving seat (24) fixed thereto, the upper end receiving seat (24) is adapted to the plug-in installation slot (12) and can be inserted upward into the plug-in installation slot (12); the locking power unit includes an inner expansion block (31) fixed in the plug-in installation slot (12), a horizontal inner embedded block (32) and a squeezing spring (33) are arranged inside the inner expansion block (31), and the horizontal inner embedded block (32) will keep moving leftward under the squeezing force of the squeezing spring (33); An inner expansion slot (25) is provided at the left half of the upper end of the upper end access seat (24). When the upper end access seat (24) is inserted into the plug-in installation slot (12), the inner expansion block (31) will extend into the inner expansion slot (25). A second through hole (342) is provided at the left side of the upper end access seat (24). The horizontal embedded block (32) can move leftward and pass through the second through hole (342). The left side wall of the plug-in installation slot (12) is provided with an embedded inner slot (343), and the horizontal embedded block (32) can be inserted into the embedded inner slot (343) after passing through the second through hole (342), so as to realize the locking of the upper end access seat (24) and the inner expansion block (31); The inner expansion block (31) is provided with a transversely penetrating inner expansion cavity (311) inside, and the right side of the inner expansion cavity (311) is open, through which the horizontal embedded block (32) and the extrusion spring (33) can be placed into the inner expansion cavity (311); a blocking block (35) is provided on the left side of the inner expansion cavity (311), and the blocking block (35) and the inner expansion block (31) are fixed by a first fixing member (351); the blocking block (35) and the inner expansion cavity (311) are connected to each other. A first through hole (341) is formed between the inner walls at the lower end of the expansion cavity (311); when the inner expansion block (31) is extended into the inner expansion slot (25), the first through hole (341) and the second through hole (342) are in communication with each other; a side cover (36) is provided on the right side cover of the inner expansion cavity (311); the side cover (36) and the inner expansion block (31) are fixed by a second fixing member (361); the two ends of the extrusion spring (33) are respectively connected to the horizontal embedded block (32) and the side cover (36); A square main accompanying block is arranged on the right side of the upper end of the horizontal embedded block (32), and the main accompanying block is composed of a first accompanying block (41) and a second accompanying block (42) both of which have a right triangle cross-sectional shape. The first accompanying block (41), the second accompanying block (42) and the horizontal embedded block (32) are fixed by a third fixing member (43); the second accompanying block (42) can be connected to the blocking block (35) to prevent the horizontal embedded block (32) from escaping from the inner expansion cavity (311); the left side of the second accompanying block (42) A first expansion notch (44) having a right-angled triangle cross-sectional shape is provided at the upper end, a first drainage hole (45) communicating with the first expansion notch (44) is provided at the upper end of the inner expansion block (31), a second drainage hole (46) communicating with the first drainage hole (45) is provided in the mounting seat (11), the second drainage hole (46) extending to the right outer wall of the mounting seat (11), and a first drainage interface seat (47) communicating with the second drainage hole (46) is fixedly provided on the right outer wall of the mounting seat (11).

2. A soil sampling device for detection according to claim 1, characterized in that: The insertion shaft (21) is provided with a hollow collecting inner cavity (51) inside, and the surface of the insertion shaft (21) is provided with a plurality of collecting openings (52) communicating with the collecting inner cavity (51). As the insertion shaft (21) is inserted into the underground soil layer and the spiral blade (23) rotates, soil falls from the collecting openings (52) into the collecting inner cavity (51); The internal sampling component includes a loading platform (53), and the loading platform (53) is in contact with the inner wall of the collecting cavity (51). After the soil falls into the collecting cavity (51), it will remain on the loading platform (53); the upper end of the loading platform (53) is provided with a counterweight block (54), and the upper end of the counterweight block (54) is fixedly provided with a vertical displacement rod (55). The upper end of the displacement rod (55) extends upward and extends into the upper end access seat (24), and the loading platform (53) with soil remaining thereon is pulled upward by pulling up the displacement rod (55).

3. A soil sampling device for detection according to claim 2, characterized in that: The upper end receiving seat (24) is provided with a discharge inner cavity (56) communicating with the collection inner cavity (51), and both sides of the lower end of the upper end receiving seat (24) are provided with discharge holes (57) communicating the discharge inner cavity (56) with the outside; Both sides of the upper ends of the loading platform (53) and the counterweight block (54) have smooth inclined surfaces (58) that are higher inside and lower outside. When the loading platform (53) moves upward to the discharge inner cavity (56), the soil remaining on the loading platform (53) will be discharged from the discharge hole (57) along the smooth inclined surfaces (58).

4. A soil sampling device for detection according to claim 3, characterized in that: A vertical main displacement hole (61) is provided inside the mounting seat (11), and the second drainage hole (46) bypasses the main displacement hole (61); a first auxiliary displacement hole (62) is formed inside the upper end of the upper access seat (24) in cooperation with the side cover plate (36); when the upper access seat (24) is inserted into the plug-in mounting groove (12), the first auxiliary displacement hole (62) communicates with the main displacement hole (61); a second auxiliary displacement hole (63) is provided inside the upper access seat (24), and the second auxiliary displacement hole (63) is located below the first auxiliary displacement hole (62) and above the discharge inner cavity (56); the first auxiliary displacement hole (62), the second auxiliary displacement hole (63) and the discharge inner cavity (56) are communicated in sequence, and the upper end of the displacement rod (55) passes through the second auxiliary displacement hole (63) upward and then passes into the first auxiliary displacement hole (62); A side extension block (65) is fixedly provided on the right side of the upper end of the displacement rod (55) via a fourth fixing member (64), and a secondary accompanying block is fixedly provided on the lower end of the side extension block (65), and the secondary accompanying block is formed by splicing a third accompanying block (71) and a fourth accompanying block (72) both of which have a right-angled triangle cross-sectional shape, and the third accompanying block (71), the fourth accompanying block (72) and the side extension block (65) are fixed by a fifth fixing member (73); A second expansion notch (74) having a right-angled triangle cross-sectional shape is provided at the lower right end of the fourth accompanying block (72); a third drainage hole (75) communicating with the second expansion notch (74) is provided in the upper end access seat (24); a fourth drainage hole (76) communicating with the third drainage hole (75) is provided in the mounting seat (11); and a second drainage interface seat (77) communicating with the fourth drainage hole (76) is fixedly provided on the right outer wall of the mounting seat (11).

5. A soil sampling device for detection according to claim 4, characterized in that: A positioning top block (81) is fixedly provided at the upper end of the upper end access seat (24), and a positioning top groove (82) adapted to the positioning top block (81) is provided in the plug-in installation groove (12). The positioning top block (81) can be connected to the positioning top groove (82) for positioning, so that the first through hole (341) and the second through hole (342) are communicated, and the third drainage hole (75) and the fourth drainage hole (76) are communicated.

6. A soil testing sampling device according to claim 1, characterized in that: The first power unit comprises a bearing seat (91) as a bearing structure, a vertical cylinder (92) is fixedly arranged on the upper end of the bearing seat (91), an output shaft of the cylinder (92) is arranged upward and fixed with a horizontal displacement support plate (93), a jacket block (94) is fixedly arranged on the cylinder (92), an inner hole is opened in the jacket block (94), a vertical guide shaft (95) is fixedly arranged on the displacement support plate (93), and the guide shaft (95) passes through the inner hole so that the displacement support plate (93) can move vertically stably; The second power unit includes a control motor (96) fixedly arranged on the upper end of the shift support plate (93), the output shaft of the control motor (96) passes downward to the lower end of the shift support plate (93), the mounting seat (11) is fixedly arranged on the output shaft of the control motor (96), and the mounting seat (11) rotates circumferentially under the drive of the output shaft of the control motor (96).

7. A method for using a soil testing sampling device, applied to the soil testing sampling device as claimed in claim 6, characterized in that: The following steps are included: After the motor (96) is controlled to drive the insertion shaft (21) to rotate in the circumferential direction, the cylinder (92) is used to control the insertion shaft (21) to be inserted into the underground soil layer to perform soil sampling.

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