Saline-alkali soil stratified sampling detection device

Abstract

The invention discloses a saline-alkali soil stratified sampling detection device, and belongs to the field of soil sampling. A saline-alkali soil stratified sampling detection device comprises a movable sampling vehicle and further comprises a drill rod arranged in the sampling vehicle, the drill rod comprises a plurality of hollow rods arranged at equal intervals, a sampling area is arranged between every two adjacent hollow rods, the bottom of the hollow rod located at the lower end is fixedly connected with a drill bit, and the drill bit is fixedly connected with the sampling vehicle. A sampling assembly is arranged between every two adjacent hollow rods, and the diameter of the drill bit is larger than that of the drill rod. The sampling assembly comprises a plurality of separation blades which are circumferentially and fixedly connected between two adjacent hollow rods; according to the soil sampling device, soil of different depths can be sampled, the situation that the accuracy of the detection result is affected by mixing of the soil of different depths can be prevented, and the sampled soil is stored, so that the soil can be prevented from falling off.

Description

Technical Field

[0001] The present invention relates to the technical field of soil sampling, and particularly to a device for layered sampling and detection of saline-alkali soil. Background Art

[0002] As a special land resource, saline-alkali soil has complex soil properties and high salt content, which has seriously affected agricultural production and the ecological environment. Scientific sampling and detection of saline-alkali soil is an important basic work for saline-alkali soil improvement, ecological restoration, and rational development and utilization. By analyzing soil samples at different depths, key information such as the physical and chemical properties and salt distribution law of saline-alkali soil can be accurately grasped, providing a reliable basis for formulating targeted improvement measures.

[0003] Currently, when sampling the soil of saline-alkali land, generally a hollow pipe is pressed down to sample the soil. On the one hand, a relatively large pressing force is required, and on the other hand, it is difficult to layer the soil after sampling. When taking out the sampled soil, it is easy to cause the soil at different depths to be mixed, which may affect the accuracy of detecting the soil at different depths. 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 device for layered sampling and detection of saline-alkali soil that can overcome the above problems or at least partially solve the above problems.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A device for layered sampling and detection of saline-alkali soil, comprising: a movable sampling vehicle, further comprising: a drill pipe disposed in the sampling vehicle, the drill pipe comprising a plurality of hollow pipes arranged at equal intervals, a sampling area is provided between two adjacent hollow pipes, a drill bit is fixedly connected to the bottom of the hollow pipe at the lower end, a sampling assembly is provided between two adjacent hollow pipes, and the diameter of the drill bit is larger than that of the drill pipe; the sampling assembly comprises a plurality of retaining pieces fixedly connected in a circumferential manner between two adjacent hollow pipes; a second electric telescopic rod fixedly disposed between two adjacent hollow pipes. When the second electric telescopic rod contracts, two adjacent hollow pipes approach each other and squeeze the retaining pieces, causing the retaining pieces to gradually form a lantern shape. At this time, the rotating drill pipe drives the retaining pieces to scrape and sample the soil; through grooves are symmetrically disposed on the sampling vehicle.

[0006] Further, two first electric telescopic rods are symmetrically and fixedly connected inside the sampling vehicle, a circular plate is fixedly connected between the output ends of the two first electric telescopic rods, a rotating ring is rotatably connected to the lower side of the circular plate, an installation assembly is provided between the rotating ring and the drill pipe, and a driving assembly for driving the rotating ring to rotate is provided on the circular plate.

[0007] Preferably, the driving assembly includes a bent plate fixedly connected to the annular plate. A motor is fixedly connected to the lower side of the bent plate. The output end of the motor is fixedly connected to a gear, and a tooth groove corresponding to the gear is formed on the upper side of the rotating ring.

[0008] In order to facilitate soil sampling at a large depth, further, an extension rod is threadedly connected to the upper end of the drill rod. Connecting plates are fixedly connected to the upper ends of the extension rod and the drill rod. A plurality of clamping blocks are fixedly connected to the upper side of the connecting plate, and a limiting groove is provided on the clamping block.

[0009] In order to facilitate the installation of the drill rod, further, the installation assembly includes a plurality of groups of fixing plates symmetrically and fixedly connected to the rotating ring. An installation plate is rotatably arranged between two adjacent fixing plates. A clamping groove corresponding to the clamping block is provided on the installation plate, and a guiding angle is provided at the lower end of the clamping groove.

[0010] In order to facilitate the limiting of the clamping block, further, a sliding groove is arranged in the installation plate. A limiting rod is slidably arranged in the sliding groove, and one end of the limiting rod extends into the clamping groove. A spring is fixedly connected between one end of the limiting rod and the bottom of the sliding groove. The end of the limiting rod is fixedly connected to a pulling rope, and the end of the pulling rope is fixedly connected to a fixed ball, and the fixed ball is arranged on the upper side of the installation plate.

[0011] Preferably, an inclined surface is provided at the end of the limiting rod.

[0012] In order to facilitate scraping soil, further, the thickness of the middle part of the baffle is smaller than the thickness of both ends of the baffle.

[0013] In order to facilitate improving the stability of the sampling vehicle, further, extension plates are symmetrically and fixedly connected to the sampling vehicle. A support plate is arranged on the lower side of the extension plate. A plurality of insertion rods are fixedly connected to the end of the support plate. A threaded rod is rotatably arranged on the support plate, and the threaded rod is threadedly connected to the extension plate. Slide rods are symmetrically and fixedly connected to the support plate, and the slide rods are slidably connected to the extension plate.

[0014] In order to facilitate taking out the sampled soil, further, storage grooves are symmetrically arranged in the hollow rod. A sealing plate is hermetically and slidably connected in the storage groove, and third electric telescopic rods are symmetrically and fixedly connected between the sealing plate and the hollow rod.

[0015] Compared with the prior art, the present invention provides a saline-alkali soil layered sampling and detection device, which has the following beneficial effects: 1. For this saline-alkali land soil layered sampling and detection device, the drill pipe and the drill bit are inserted into the specified underground position, and then the second electric telescopic rod is controlled to contract. Specifically, during the operation, first control the second electric telescopic rod at the bottommost side to contract. The adjacent hollow rods approach and squeeze the baffle, making it in a lantern shape. At the same time, the drill pipe rotates, so that the soil of the current stratum can be scraped. After the scraping is completed, control this second electric telescopic rod to reset. At this time, multiple baffles block the sampling area, and then control the second electric telescopic rod on the adjacent upper side to operate in the same way, and cycle in turn, so that the soil at different depths can be sampled, and the mixing of soils at different depths can be prevented from affecting the accuracy of the detection results. By storing the sampled soil, the soil can be prevented from falling off.

[0016] 2. For this saline-alkali land soil layered sampling and detection device, when the second electric telescopic rod contracts and squeezes the baffle to form a lantern shape, the thinner middle part makes the baffle easier to deform, and the arc formed after deformation fits the soil better, so that the soil sample can be better collected when rotating and scraping the soil.

[0017] 3. For this saline-alkali land soil layered sampling and detection device, during the sampling process, the third electric telescopic rod is in a contracted state. At this time, the storage tank can store the scraped soil, improving the sample storage capacity. When it is necessary to take out the soil sample, control the third electric telescopic rod to extend, and push the soil outwards through the sealing plate, so as to facilitate taking out the sampled soil.

[0018] The parts not involved in this device are the same as the prior art or can be implemented by the prior art. The present invention can sample the soil at different depths, and can prevent the mixing of soils at different depths from affecting the accuracy of the detection results. By storing the sampled soil, the soil can be prevented from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a saline-alkali land soil layered sampling and detection device proposed by the present invention; Figure 2 It is a schematic sectional view of a saline-alkali land soil layered sampling and detection device proposed by the present invention; Figure 3 It is a saline-alkali land soil layered sampling and detection device proposed by the present invention Figure 2 The enlarged schematic view of part A in; Figure 4 It is a saline-alkali land soil layered sampling and detection device proposed by the present invention Figure 3 The enlarged schematic view of part B in; Figure 5 It is a partial sectional schematic view of a saline-alkali land soil layered sampling and detection device proposed by the present invention; Figure 6Schematic cross-sectional view of a baffle in a soil layered sampling and detection device for saline-alkali land proposed by the present invention.

[0020] In the figure: 1. Sampling vehicle; 101. Extension plate; 102. Support plate; 103. Insertion rod; 104. Threaded rod; 105. Slide rod; 106. Through groove; 2. First electric telescopic rod; 201. Ring plate; 202. Bent plate; 203. Motor; 204. Gear; 205. Rotating ring; 206. Tooth groove; 207. Fixed plate; 3. Mounting plate; 301. Card slot; 302. Guide angle; 303. Slide groove; 304. Limiting rod; 305. Inclined surface; 306. Spring; 307. Pulling rope; 308. Fixed ball; 4. Drill rod; 401. Drill bit; 402. Hollow rod; 403. Second electric telescopic rod; 404. Baffle; 405. Storage tank; 406. Third electric telescopic rod; 407. Sealing plate; 408. Sampling area; 5. Connecting plate; 501. Block; 502. Limiting groove; 6. Extension rod. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] Embodiment 1: Refer to Figures 1-6 , a soil layered sampling and detection device for saline-alkali land, including: a movable sampling vehicle 1, and further including: a drill rod 4 disposed in the sampling vehicle 1, the drill rod 4 includes a plurality of hollow rods 402 arranged at equal intervals, a sampling area 408 is provided between two adjacent hollow rods 402, a drill bit 401 is fixedly connected to the bottom of the lowermost hollow rod 402, a sampling assembly is provided between two adjacent hollow rods 402, and the diameter of the drill bit 401 is greater than the diameter of the drill rod 4; the sampling assembly includes a plurality of baffles 404 fixedly connected in a circumferential manner between two adjacent hollow rods 402; a second electric telescopic rod 403 is fixedly disposed between two adjacent hollow rods 402. When the second electric telescopic rod 403 contracts, two adjacent hollow rods 402 approach each other and squeeze the baffle 404, so that the baffle 404 gradually forms a lantern shape. At this time, the rotating drill rod 4 drives the baffle 404 to scrape and sample the soil; through grooves 106 are symmetrically disposed on the sampling vehicle 1.

[0023] Universal wheels are installed at the bottom of the sampling vehicle 1 to facilitate movement on saline-alkali land. The hollow rod 402 in the drill rod 4 is made of high-strength stainless steel to ensure strength and corrosion resistance. The length of the sampling area 408 is set to 20 cm to facilitate layered sampling of soils at different depths. The drill bit 401 is made of alloy material, and its diameter is 5 cm larger than the diameter of the drill rod 4, which is beneficial to drilling into the soil. The baffle 404 is made of elastic metal sheet and is evenly fixed between adjacent hollow rods 402.

[0024] When sampling the soil of saline-alkali land, first insert the drill pipe 4 and the drill bit 401 into the specified underground position, and then control the second electric telescopic rod 403 to contract. Specifically, first control the second electric telescopic rod 403 at the lowest side to contract, and the adjacent hollow rods 402 approach and squeeze the baffle 404 towards each other, making it in a lantern shape. At the same time, the drill pipe 4 rotates, so that the soil of the current formation can be scraped. After the scraping is completed, control the second electric telescopic rod 403 to reset. At this time, multiple baffles 404 block the sampling area 408. Then control the second electric telescopic rod 403 at the adjacent upper side to operate in the same way and cycle in turn, so that the soil at different depths can be sampled, and the mixing of soils at different depths can be prevented from affecting the accuracy of its detection results. By storing the sampled soil, the soil can be prevented from falling off.

[0025] Example 2: Refer to Figures 1-6 , a saline-alkali land soil layered sampling and detection device, which is basically the same as that in Example 1. Further, a first electric telescopic rod 2 is symmetrically and fixedly connected inside the sampling vehicle 1. A ring plate 201 is fixedly connected between the output ends of the two first electric telescopic rods 2. A rotating ring 205 is rotatably connected to the lower side of the ring plate 201. An installation component is arranged between the rotating ring 205 and the drill pipe 4, and a driving component for driving the rotating ring 205 to rotate is arranged on the ring plate 201.

[0026] According to the sampling depth requirement, start the first electric telescopic rod 2 to adjust the heights of the ring plate 201 and the drill pipe 4, start the driving component to drive the rotating ring 205 to rotate, and then make the drill pipe 4 rotate to perform the sampling work.

[0027] The driving component includes a bent plate 202 fixedly connected to the ring plate 201. A motor 203 is fixedly connected to the lower side of the bent plate 202. A gear 204 is fixedly connected to the output end of the motor 203. A tooth groove 206 corresponding to the gear 204 is formed on the upper side of the rotating ring 205.

[0028] Start the motor 203, and the gear 204 at the output end of the motor 203 meshes with the tooth groove 206 on the rotating ring 205 to drive the rotating ring 205 to rotate, so that the drill pipe 4 rotates to perform soil sampling.

[0029] The upper end of the drill pipe 4 is threadedly connected with an extension rod 6. Connecting plates 5 are fixedly connected to the upper ends of the extension rod 6 and the drill pipe 4. Multiple clamping blocks 501 are fixedly connected to the upper side of the connecting plate 5. A limiting groove 502 is arranged on the clamping block 501.

[0030] When it is necessary to increase the sampling depth, first press the drill pipe 4 into an appropriate depth, then thread-connect the extension rod 6 to the upper end of the drill pipe 4, and install the extended drill pipe 4 on the rotating ring 205 by matching the clamping block 501 on the connecting plate 5 with the clamping groove 301 of the installation component for deeper soil sampling.

[0031] The installation component includes multiple groups of fixing plates 207 symmetrically and fixedly connected to the rotating ring 205. An installation plate 3 is rotatably arranged between two adjacent fixing plates 207. The installation plate 3 is provided with a clamping groove 301 corresponding to the clamping block 501, and a guiding angle 302 is arranged at the lower end of the clamping groove 301.

[0032] When installing the drill pipe 4, align the clamping block 501 on the drill pipe 4 and the extension rod 6 with the clamping groove 301 of the installation plate 3, and use the guidance of the guiding angle 302 to make the clamping block 501 smoothly enter the clamping groove 301, realizing the quick installation of the drill pipe 4 and the rotating ring 205.

[0033] Example 3: Refer to Figures 1-6 , a saline-alkali soil layered sampling and detection device, which is basically the same as Example 1. Further, a sliding groove 303 is arranged inside the installation plate 3, a limiting rod 304 is slidably arranged in the sliding groove 303, and one end of the limiting rod 304 extends into the clamping groove 301. A spring 306 is fixedly connected between one end of the limiting rod 304 and the bottom of the sliding groove 303. A pull rope 307 is fixedly connected to the end of the limiting rod 304, and a fixing ball 308 is fixedly connected to the end of the pull rope 307. The fixing ball 308 is placed on the upper side of the installation plate 3.

[0034] An inclined surface 305 is arranged at the end of the limiting rod 304.

[0035] When installing the drill pipe 4, during the process of the clamping block 501 entering the clamping groove 301, the limiting rod 304 is squeezed to retract into the sliding groove 303 against the elastic force of the spring 306. When the clamping block 501 completely enters the clamping groove 301, the limiting rod 304 pops out under the action of the spring 306 and inserts into the limiting groove 502 to limit and fix the drill pipe 4. When disassembling, pull the fixing ball 308, and pull the limiting rod 304 back into the sliding groove 303 through the pull rope 307, then the drill pipe 4 can be disassembled.

[0036] The thickness of the middle part of the baffle 404 is less than the thickness of both ends of the baffle 404.

[0037] When the second electric telescopic rod 403 contracts to squeeze the baffle 404 into a lantern shape, the thinner middle part design makes the baffle 404 easier to deform, and the formed arc after deformation fits the soil better, and can better collect soil samples when rotating and scraping the soil.

[0038] Example 4: Refer to Figures 1-6, A soil layer sampling and detection device for saline-alkali land, which is basically the same as that in Embodiment 1. Further, extension plates 101 are symmetrically and fixedly connected to the sampling vehicle 1. A support plate 102 is arranged on the lower side of the extension plate 101. A plurality of insertion rods 103 are fixedly connected to the end of the support plate 102. A threaded rod 104 is rotatably arranged on the support plate 102, and the threaded rod 104 is threadedly connected to the extension plate 101. Slide rods 105 are symmetrically and fixedly connected to the support plate 102, and the slide rods 105 are slidably connected to the extension plate 101.

[0039] After reaching the sampling site, rotate the threaded rod 104 to make it rotate in the threaded hole of the extension plate 101, drive the support plate 102 to move downward, insert the insertion rods 103 into the soil, and fix the sampling vehicle 1 on the ground to prevent the sampling vehicle 1 from moving during the sampling process.

[0040] Storage grooves 405 are symmetrically arranged inside the hollow rod 402. A sealing plate 407 is hermetically and slidably connected inside the storage groove 405. Third electric telescopic rods 406 are symmetrically and fixedly connected between the sealing plate 407 and the hollow rod 402.

[0041] During the sampling process, the third electric telescopic rod 406 is in a contracted state. At this time, the storage groove 405 can store the scraped soil, improving the sample storage capacity. When it is necessary to take out the soil sample, control the third electric telescopic rod 406 to extend, and push the soil outwards through the sealing plate 407, so as to facilitate taking out the sampled soil.

[0042] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A saline-alkali soil layered sampling and detection device, comprising: A movable sampling vehicle (1), characterized in that it further comprises: A drill pipe (4) arranged inside the sampling vehicle (1), the drill pipe (4) comprising a plurality of hollow pipes (402) arranged at equal intervals, a sampling area (408) is arranged between two adjacent hollow pipes (402), a drill bit (401) is fixedly connected to the bottom of the hollow pipe (402) at the lower end, a sampling assembly is arranged between two adjacent hollow pipes (402), and the diameter of the drill bit (401) is larger than that of the drill pipe (4); The sampling assembly comprises a plurality of baffles (404) fixedly connected in a circumferential manner between two adjacent hollow pipes (402); A second electric telescopic rod (403) fixedly arranged between two adjacent hollow pipes (402), when the second electric telescopic rod (403) contracts, two adjacent hollow pipes (402) approach each other and squeeze the baffle (404), so that the baffle (404) gradually forms a lantern shape, and at this time, the rotating drill pipe (4) drives the baffle (404) to scrape and sample the soil; Through grooves (106) symmetrically arranged on the sampling vehicle (1).

2. The soil layer sampling and detection device for saline-alkali land according to claim 1, wherein First electric telescopic rods (2) are symmetrically and fixedly connected inside the sampling vehicle (1), a ring plate (201) is fixedly connected between the output ends of the two first electric telescopic rods (2), a rotating ring (205) is rotatably connected to the lower side of the ring plate (201), an installation assembly is arranged between the rotating ring (205) and the drill pipe (4), and a driving assembly for driving the rotating ring (205) to rotate is arranged on the ring plate (201).

3. The soil layer sampling and detection device for saline-alkali land according to claim 2, wherein The driving assembly comprises a bent plate (202) fixedly connected to the ring plate (201), a motor (203) is fixedly connected to the lower side of the bent plate (202), a gear (204) is fixedly connected to the output end of the motor (203), and a tooth groove (206) corresponding to the gear (204) is arranged on the upper side of the rotating ring (205).

4. The soil layer sampling and detection device for saline-alkali land according to claim 2, wherein An extension rod (6) is threadedly connected to the upper end of the drill pipe (4), connecting plates (5) are fixedly connected to the upper ends of the extension rod (6) and the drill pipe (4), a plurality of clamping blocks (501) are fixedly connected to the upper side of the connecting plate (5), and a limiting groove (502) is arranged on the clamping block (501).

5. The soil layer sampling and detection device for saline-alkali land according to claim 4, characterized in that, The installation assembly comprises a plurality of groups of fixing plates (207) symmetrically and fixedly connected to the rotating ring (205), an installation plate (3) is rotatably arranged between two adjacent fixing plates (207), a clamping groove (301) corresponding to the clamping block (501) is arranged on the installation plate (3), and a guiding angle (302) is arranged at the lower end of the clamping groove (301).

6. The layered soil sampling and detection device for saline-alkali land according to claim 5, characterized in that, A chute (303) is provided inside the mounting plate (3). A limiting rod (304) is slidably arranged in the chute (303), and one end of the limiting rod (304) extends into the card slot (301). A spring (306) is fixedly connected between one end of the limiting rod (304) and the bottom of the chute (303). A pull rope (307) is fixedly connected to the end of the limiting rod (304), and a fixing ball (308) is fixedly connected to the end of the pull rope (307). The fixing ball (308) is placed on the upper side of the mounting plate (3).

7. The soil layer sampling and detection device for saline-alkali land according to claim 6, characterized in that, An inclined surface (305) is provided at the end of the limiting rod (304).

8. The soil layer sampling and detection device for saline-alkali land according to claim 1, wherein The thickness of the middle part of the retaining piece (404) is smaller than the thickness of both ends of the retaining piece (404).

9. The soil layer sampling and detection device for saline-alkali land according to claim 1, wherein, Extension plates (101) are symmetrically and fixedly connected to the sampling vehicle (1). A support plate (102) is arranged on the lower side of the extension plate (101). A plurality of insertion rods (103) are fixedly connected to the end of the support plate (102). A threaded rod (104) is rotatably arranged on the support plate (102), and the threaded rod (104) is threadedly connected to the extension plate (101). Slide rods (105) are symmetrically and fixedly connected to the support plate (102), and the slide rods (105) are slidably connected to the extension plate (101).

10. A saline-alkali soil layered sampling and detection device according to claim 1, characterized in that, Storage grooves (405) are symmetrically arranged inside the hollow rod (402). A sealing plate (407) is hermetically and slidably connected in the storage groove (405). Third electric telescopic rods (406) are symmetrically and fixedly connected between the sealing plate (407) and the hollow rod (402).

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