Soil and underground water layered sampling module based on NB-IoT

Abstract

The utility model discloses a kind of soil underground water layered sampling module based on NB-IoT, including cone, cone is fixedly installed at the bottom of sleeve, the outside of cone is fixedly connected with side plate, the number of side plate has multiple, multiple side plate evenly distributes in the outside of cone, the outside of side plate is equipped with notch, the number of notch has multiple, multiple notch evenly arranges in the side of side plate far from cone.The utility model relates to soil underground water layered sampling technical field.This one kind of soil underground water layered sampling module based on NB-IoT, for the soil containing gravel, sand, the arc edge of inclined side plate can buffer and collide with gravel, avoid direct impact to cause drill bit damage, simultaneously, gravel is extruded to surrounding soil by the rotation of side plate, reduce the jam of gravel to drill bit, ensure that module can still be vertically advanced in complex soil, solve the problem that traditional plane bottom is easily stuck by gravel, cannot be in-depth.

Description

Technical Field

[0001] This utility model relates to the field of soil and groundwater stratification sampling technology, specifically a soil and groundwater stratification sampling module based on NB-IoT. Background Technology

[0002] In fields such as agricultural production, ecological protection, and geological and hydrological research, stratified monitoring of soil and groundwater is a core foundation for understanding dynamic changes in water content and formulating scientific management strategies. As society increasingly emphasizes efficient resource utilization and ecological security, the limitations of traditional monitoring technologies are becoming increasingly apparent.

[0003] Traditional manual sampling requires staff to carry tools such as Luoyang shovels and sampling bottles to the site, excavate soil profiles or drill holes at a predetermined depth to collect groundwater samples, and then bring them back to the laboratory to analyze moisture content using methods such as drying and tensiometer analysis. This method is extremely inefficient; completing stratified sampling at 3-5 sampling points per hectare takes 1-2 days, which is insufficient to meet the monitoring needs of large-scale areas (such as tens of thousands of acres of farmland or large-scale ecological protection zones). Utility Model Content

[0004] To solve the above technical problems, this utility model is implemented through the following technical solution: a soil groundwater stratification sampling module based on NB-IoT, including a fixed block and a handle fixedly installed at the end of the fixed block. There are two handles, and the two handles are symmetrically arranged with the fixed block as the center.

[0005] The sleeve is fixedly installed at the bottom of the fixed block;

[0006] A rotating assembly is rotatably connected to a sleeve, with a fixed block passing through the top of the rotating assembly;

[0007] The drill bit is fixedly installed at the bottom of the sleeve;

[0008] The drill bit includes a conical body, which is fixedly installed at the bottom of the sleeve. Side plates are fixedly connected to the outside of the conical body. There are multiple side plates, which are evenly distributed on the outside of the conical body. The side plates are inclined. For soil containing gravel and sand, the arc-shaped edge of the inclined side plate can buffer the collision with the gravel and avoid direct impact that could damage the drill bit. At the same time, the rotation of the side plate will squeeze the gravel into the surrounding soil, reducing the gravel from getting stuck on the drill bit. This ensures that the module can still advance vertically in complex soil, solving the problem that the bottom of the traditional flat plate is easily stuck by gravel and cannot penetrate deeply.

[0009] Preferably, a circular plate is fixedly connected to the top of the conical body near the sleeve. A circular groove is formed in the middle of the end of the circular plate away from the conical body. Two locking blocks are slidably connected inside the circular plate, evenly distributed on the plate. The locking blocks penetrate the circular plate and extend into the groove. A magnetic block is fixedly connected to one end of the locking block. The two magnetic blocks have opposite magnetic properties. Initially, the mutual attraction between the two magnetic blocks causes the magnetic block to move the locking block into the interior of the circular plate. Subsequently, the drill bit is installed at the bottom of the cylinder, causing the circular plate to be positioned... Inside the slot, the block is located inside the circular groove. At this time, the block contacts the side of the magnetic block and generates pressure, causing the magnetic block to be forced to move the block away from the end of the block. This makes one end of the block inside the through hole, making the connection between the drill bit and the sleeve detachable. When the drill bit edge is worn out, only the drill bit body needs to be replaced. The end of the magnetic block away from the block is inclined. The magnetic block is located inside the circular groove. The outer side of the side plate has multiple slots, which are evenly arranged on the side of the side plate away from the conical body.

[0010] Preferably, the sleeve includes a cylindrical body, which is fixedly connected to a conical body. A groove is formed at the center of the end face of the cylindrical body near the circular plate. The circular plate is located inside the groove. Multiple through holes are formed on the inner side of the groove. A locking block is located inside each through hole. A conical block is fixedly connected to the center of the bottom of the groove. The generatrix of the block is parallel to the inclined edge of the magnetic block. A spiral plate is fixedly connected to the outer side of the cylindrical body. After the worker inserts the sleeve into the target soil layer using a handle, the spiral plate on the outer side of the sleeve, when rotated, converts the downward vertical pressure into pressure along the spiral surface. Tangential force is used to gradually cut the soil and discharge the soil debris upwards. By recording the number of rotations of the sleeve, the drilling depth can be quickly estimated without frequent measurement with a measuring tape, meeting the depth accuracy requirements of stratified sampling. Square holes are opened on the outside of the cylinder, and the square holes and spiral plates are alternately arranged on the outside of the cylinder. There are multiple square holes, which are evenly arranged on the outside of the cylinder. An inner cavity is opened inside the cylinder, and a partition is fixedly connected inside the cylinder. The partition divides the inside of the cylinder into multiple spaces. A sensor unit is fixedly connected to the middle of the surface of the partition. The sensor unit is composed of an NB-IoT communication module and a soil moisture sensor. The soil moisture sensor is an NBL-S-TMM tubular multilayer soil moisture sensor.

[0011] Preferably, the rotating component includes an inner cylinder located inside the inner cavity of the cylinder body. After the sleeve is drilled into the target soil layer, the inner cylinder is rotated by a knob, so that the filter holes on the inner cylinder are aligned with the square holes of the cylinder body. This allows water from the soil outside the cylinder body to seep into the cylinder body through the filter holes. At this time, the humidity sensor located inside the cylinder body directly contacts the water that seeps into the sleeve and collects soil volumetric moisture content data. The communication module is responsible for uploading the data to the cloud platform in real time. The inner cylinder passes through a fixing block, and a knob is fixedly connected to the top of the inner cylinder. Filter holes are opened on the outer side of the inner cylinder.

[0012] This invention provides a soil and groundwater stratification sampling module based on NB-IoT. It has the following beneficial effects:

[0013] (i) The NB-IoT-based soil and groundwater stratification sampling module can buffer the collision with gravel through the arc edge of the inclined side plate, avoiding direct impact that could damage the drill bit. At the same time, the rotation of the side plate squeezes the gravel into the surrounding soil, reducing the gravel from getting stuck on the drill bit, ensuring that the module can still advance vertically in complex soil, thus solving the problem that the bottom of the traditional flat plate is easily stuck by gravel and cannot penetrate deeply.

[0014] (ii) The soil and groundwater stratification sampling module based on NB-IoT makes contact with the side of the block and the magnetic block and generates compression, so that the magnetic block is driven by force to move the card block away from the block, so that one end of the block is located inside the through hole, making the connection between the drill bit and the sleeve detachable. When the drill bit edge is worn out, only the drill bit body needs to be replaced. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the drill bit of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the sleeve of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the sleeve of this utility model;

[0019] Figure 5 This is a schematic diagram of the rotating assembly of this utility model.

[0020] In the diagram: 1. Handle; 2. Fixing block; 3. Rotating assembly; 31. Inner cylinder; 32. Knob; 33. Filter hole; 4. Sleeve; 41. Cylinder body; 42. Slot; 43. Through hole; 44. Block; 45. Spiral plate; 46. Square hole; 47. Inner cavity; 48. Sensor unit; 49. Partition plate; 5. Drill bit; 51. Conical body; 52. Side plate; 53. Circular plate; 54. Locking block; 55. Circular groove; 56. Magnetic block; 57. Groove opening. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This utility model provides a technical solution: a soil and groundwater stratification sampling module based on NB-IoT, comprising:

[0023] The fixing block 2 and the handle 1 fixedly installed at the end of the fixing block 2. There are two handles 1, and the two handles 1 are symmetrically arranged with the fixing block 2 as the center.

[0024] Sleeve 4 is fixedly installed at the bottom of fixed block 2;

[0025] Rotating component 3 is rotatably connected to sleeve 4, and the top of rotating component 3 passes through fixed block 2;

[0026] Drill bit 5 is fixedly installed at the bottom of sleeve 4;

[0027] The drill bit 5 includes a conical body 51, which is fixedly installed at the bottom of the sleeve 4. A side plate 52 is fixedly connected to the outer side of the conical body 51. There are multiple side plates 52, which are evenly distributed on the outer side of the conical body 51. The side plates 52 are inclined. For soil containing gravel and sand, the arc-shaped edge of the inclined side plate 52 can buffer the collision with the gravel and avoid direct impact that could damage the drill bit 5. At the same time, the rotation of the side plate 52 will squeeze the gravel into the surrounding soil, reducing the gravel from jamming the drill bit 5 and ensuring that the module can still advance vertically in complex soil. This solves the problem that the bottom of the traditional flat surface is easily jammed by gravel and cannot penetrate deeply.

[0028] A circular plate 53 is fixedly connected to the top of the conical body 51 near the top of the sleeve 4. A circular groove 55 is formed in the middle of the end of the circular plate 53 away from the conical body 51. A locking block 54 is slidably connected inside the circular plate 53. There are two locking blocks 54, which are evenly distributed on the circular plate 53. The locking blocks 54 penetrate the circular plate 53 and extend into the interior of the circular groove 55. A magnetic block 56 is fixedly connected to one end of the locking block 54. The two magnetic blocks have opposite magnetic properties. In the initial state, the mutual attraction between the two magnetic blocks 56 causes the magnetic blocks 56 to move the locking block 54 into the interior of the circular plate 53. Then, the drill bit 5 is installed at the bottom of the cylinder 41, so that the circular plate 53 is located in the groove. Inside 42, block 44 is located inside the circular groove 55. At this time, block 44 contacts the side of magnetic block 56 and generates pressure, causing magnetic block 56 to be driven by force to move the locking block 54 away from block 44, so that one end of block 44 is located inside the through hole 43, making the drill bit 5 and sleeve 4 detachably connected. When the cutting edge of drill bit 5 is worn and scrapped, only the body of drill bit 5 needs to be replaced. The end of magnetic block 56 away from locking block 54 is inclined. Magnetic block 56 is located inside the circular groove 55. The outer side of side plate 52 is provided with slots 57. There are multiple slots 57, and multiple slots 57 are evenly arranged on the side of side plate 52 away from cone 51.

[0029] The sleeve 4 includes a cylinder 41, which is fixedly connected to a conical body 51. A groove 42 is provided at the middle of the end face of the cylinder 41 near the circular plate 53. The circular plate 53 is located inside the groove 42. Through holes 43 are provided on the inner side of the groove 42. There are multiple through holes 43. A locking block 54 is located inside the through hole 43. A block 44 is fixedly connected to the middle of the bottom of the groove 42. The block 44 is conical, and its generatrix is ​​parallel to the inclined edge of the magnetic block 56. A spiral plate 45 is fixedly connected to the outer side of the cylinder 41. After the operator drills the sleeve 4 into the target soil layer using the handle 1, the spiral plate 45 on the outer side of the cylinder 41 converts the vertically downward pressure into pressure along the direction of rotation when the sleeve is rotated. The tangential force of the spiral surface gradually cuts the soil and discharges the soil debris upwards. By recording the number of rotations of the sleeve, the drilling depth can be quickly estimated without frequent measurement with a measuring tape, meeting the depth accuracy requirements of stratified sampling. Square holes 46 are opened on the outer side of the cylinder 41. Square holes 46 and spiral plates 45 are alternately arranged on the outer side of the cylinder 41. There are multiple square holes 46, which are evenly arranged on the outer side of the cylinder 41. An inner cavity 47 is opened inside the cylinder 41. A partition 49 is fixedly connected inside the cylinder 41, dividing the interior of the cylinder 41 into multiple spaces. A sensor unit 48 is fixedly connected to the middle of the surface of the partition 49. The sensor unit 48 is composed of an NB-IoT communication module and a soil moisture sensor. The soil moisture sensor is an NBL-S-TMM tubular multilayer soil moisture sensor.

[0030] The rotating assembly 3 includes an inner cylinder 31, which is located inside the inner cavity 47 of the cylinder body 41. After the sleeve 4 is drilled into the target soil layer, the inner cylinder 31 is rotated by the knob 32, so that the filter holes 33 on the inner cylinder 31 are aligned with the square holes 46 of the cylinder body 41. This allows water inside the soil outside the cylinder body 41 to seep into the interior of the cylinder body 41 through the filter holes 33. At this time, the humidity sensor located inside the cylinder body 41 directly contacts the water that seeps into the sleeve 4 and collects soil volume moisture content data. The communication module is responsible for uploading the data to the cloud platform in real time. The inner cylinder 31 passes through the fixing block 2, and the knob 32 is fixedly connected to the top of the inner cylinder 31. The filter holes 33 are opened on the outer side of the inner cylinder 31.

[0031] In use, the staff inserts the sleeve 4 into the target soil layer by using handle 1, and then rotates the inner cylinder 31 by using knob 32, so that the filter hole 33 on the inner cylinder 31 is aligned with the square hole 46 of the cylinder body 41. This allows water from the soil outside the cylinder body 41 to seep into the interior of the cylinder body 41 through the filter hole 33. At this time, the humidity sensor located inside the cylinder body 41 directly contacts the water that seeps into the sleeve 4 and collects soil volume moisture content data. The communication module is responsible for uploading the data to the cloud platform in real time.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A soil and groundwater stratified sampling module based on NB-IoT, characterized in that, include: A fixed block (2) and a handle (1) fixedly installed at the end of the fixed block (2), wherein there are two handles (1), and the two handles (1) are symmetrically arranged with the fixed block (2) as the center; Sleeve (4), which is fixedly installed at the bottom of the fixing block (2); Rotating component (3), which is rotatably connected to sleeve (4), with the top of the rotating component (3) penetrating the fixing block (2); Drill bit (5), which is fixedly installed at the bottom of sleeve (4); The drill bit (5) includes a cone (51), which is fixedly installed at the bottom of the sleeve (4). A side plate (52) is fixedly connected to the outside of the cone (51). There are multiple side plates (52), which are evenly distributed on the outside of the cone (51). The sleeve (4) includes a cylindrical body (41), which is fixedly connected to a conical body (51). A slot (42) is provided at the middle of the end face of the cylindrical body (41) near the circular plate (53). A through hole (43) is provided on the inner side of the slot (42). There are multiple through holes (43). A block (44) is fixedly connected at the middle of the bottom of the slot (42). The block (44) is conical. A partition (49) is fixedly connected inside the cylinder (41), and a sensor unit (48) is fixedly connected at the middle of the surface of the partition (49). The sensor unit (48) is composed of an NB-IoT communication module and a soil moisture sensor, wherein the soil moisture sensor is an NBL-S-TMM tubular multilayer soil moisture sensor.

2. The soil and groundwater stratification sampling module based on NB-IoT according to claim 1, characterized in that: A circular plate (53) is fixedly connected to the top of the cone (51) near the sleeve (4). A circular groove (55) is provided in the middle of the end of the circular plate (53) away from the cone (51). A locking block (54) is slidably connected inside the circular plate (53). There are two locking blocks (54), which are evenly distributed on the circular plate (53). The locking blocks (54) penetrate the circular plate (53) and extend into the interior of the circular groove (55).

3. A soil and groundwater stratification sampling module based on NB-IoT according to claim 2, characterized in that: One end of the card block (54) is fixedly connected to a magnetic block (56). The end of the magnetic block (56) away from the card block (54) is inclined. The magnetic block (56) is located inside the circular groove (55). The side plate (52) has a slot (57) on its outer side. There are multiple slots (57), and the multiple slots (57) are evenly arranged on the side of the side plate (52) away from the cone (51).

4. The soil and groundwater stratification sampling module based on NB-IoT according to claim 3, characterized in that: The circular plate (53) is located inside the slot (42), the card block (54) is located inside the through hole (43), and the generatrix of the block (44) is set parallel to the inclined edge of the magnetic block (56).

5. A soil and groundwater stratification sampling module based on NB-IoT according to claim 4, characterized in that: A spiral plate (45) is fixedly connected to the outer side of the cylinder (41). A square hole (46) is opened on the outer side of the cylinder (41). The square hole (46) and the spiral plate (45) are alternately arranged on the outer side of the cylinder (41). There are multiple square holes (46). The multiple square holes (46) are evenly arranged on the outer side of the cylinder (41). An inner cavity (47) is opened inside the cylinder (41).

6. A soil and groundwater stratification sampling module based on NB-IoT according to claim 1, characterized in that: The rotating assembly (3) includes an inner cylinder (31), which is located inside the inner cavity (47) of the cylinder body (41). The inner cylinder (31) passes through the fixing block (2), and a knob (32) is fixedly connected to the top of the inner cylinder (31). A filter hole (33) is provided on the outer side of the inner cylinder (31).

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