A soil sampling device for agricultural technology detection

Abstract

The utility model relates to the field of soil sampling, and specifically relates to a soil sampling device for agricultural technology detection, which comprises a supporting column and a drill bit installed at the bottom end of the supporting column, and an annular box is arranged between the supporting column and the drill bit; the soil sampling device further comprises a sampling assembly, the number of the sampling assembly is four, the sampling assembly is arranged inside the annular box and is used for sampling and processing soil at different depths; wherein the sampling assembly comprises a rotatable sampling rod, a group of through holes matched with the sampling rod are formed in the outer side of the annular box, one end of the sampling rod is conically arranged, and a group of sampling grooves are formed in the inside of the sampling rod; the sampling device can be unaffected by the hardness of soil, the sampling placement effect is guaranteed, the phenomenon that soil accidentally falls into the sampling rod during the sampling process can be reduced, and the sampling result is more accurate.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling, and in particular to a soil sampling device for agricultural technology testing. Background Technology

[0002] Nowadays, with the development of agricultural technology, it is necessary to test a series of soil components for agricultural soil, such as soil nutrient composition, soil pH, soil organic matter composition, and the degree of heavy metal pollution in the soil. At this time, it is necessary to take soil samples from the land, which requires the use of soil sampling devices. A soil sampling device is a device that facilitates the acquisition of soil samples from the field.

[0003] A search revealed that the Chinese patent "A Soil Sampling Device for Agricultural Technology Testing" (authorization announcement number CN221377144U) includes a power component and a soil sampling component. The soil sampling component comprises: a housing; several limiting grooves fixedly installed on the inner plate of the housing; several soil samplers slidably connected to the inner wall of the limiting grooves; several limiting rods fixedly installed on the top of the soil samplers; a driving component fixedly installed inside the housing, with a driving gear fixedly installed at its output end via a coupling; and a limiting gear slidably installed on the top of the limiting grooves and connected to... The drive gear meshes and has several slots through which several limiting rods are slidably connected. The drive unit drives the soil sampler to insert into the soil for sampling. However, the above method has the following defects in actual use: the soil sampler is easily affected by the soil hardness during insertion, resulting in insufficient insertion depth or insertion failure, thus leading to poor sampling effect. In addition, the slots opened to the outside of the outer shell can easily allow soil of different depths to enter the sampler along the slots when the soil sampling component is placed into the soil, resulting in inaccurate sampling results.

[0004] Therefore, a soil sampling device for agricultural technology testing is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a soil sampling device for agricultural technology testing in order to solve the above-mentioned problems, thereby improving the problem that the soil sampler is easily affected by soil hardness, resulting in poor sampling effect and inaccurate sampling results during the sampling process.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a soil sampling device for agricultural technology testing, comprising a support column and a drill bit installed at its bottom end, with an annular box disposed between the support column and the drill bit; further comprising sampling components, the number of which is four, the sampling components being disposed inside the annular box and used for sampling soil at different depths; wherein, the sampling component includes a rotatable sampling rod, a set of through holes adapted to the sampling rod are opened on the outer side of the annular box, one end of the sampling rod is tapered, and a set of sampling grooves are opened inside the sampling rod.

[0007] Preferably, the outer side of the sampling rod is fitted with a fixing tube that is fixedly installed inside the annular box. A servo motor is installed inside the fixing tube. The output shaft of the servo motor is threadedly connected to one end of the sampling rod through a coupling. A piston plate that is slidably connected to the inner wall of the fixing tube is installed on the outer side of the servo motor.

[0008] Preferably, a miniature air pump and an annular tube are installed inside the annular box. The output end of the miniature air pump is connected to the annular tube through a pipe, and an air guide tube is installed between the annular tube and the fixed tube.

[0009] Preferably, an exhaust pipe is installed at one end of the fixed pipe, and solenoid valves are installed on the outer sides of both the exhaust pipe and the air guide pipe.

[0010] Preferably, two springs are installed on one side of the piston plate, and the ends of the springs away from the piston plate are fixedly installed inside the fixed tube.

[0011] Preferably, a set of baffles for blocking the through holes is provided on the outer side of the annular box. The baffles are installed on the outer side of the annular box through a hinge seat, and a torsion spring sleeved on the outer side of the hinge shaft is installed in the hinge seat.

[0012] Preferably, a motor connected to the drill bit is embedded at the bottom end of the support column, and a set of connecting rods is installed between the support column and the annular box.

[0013] The beneficial effects of this utility model are: 1. By setting up a sampling rod, when performing sampling operations, the servo motor can be started to drive the sampling rod to rotate. At the same time, external gas is introduced into the fixed tube. The gas pushes the piston plate, causing the sampling rod to rotate along the through hole into the soil. Its conical end is used to break the soil, reducing the phenomenon that the sampling rod cannot be placed in place due to the influence of soil hardness, and ensuring the sampling rod placement effect. 2. By setting up a baffle, the baffle is used to block the through hole through which the sampling rod needs to pass. When the sampling rod is taking samples, the baffle is opened by the resistance. After the sampling is completed, the torsion spring drives the baffle to return to its original position and block the sampling rod. This effectively reduces the occurrence of soil accidentally falling into the sampling rod. Moreover, soil samples at different depths can be taken during a single sampling operation, ensuring more diverse and accurate sampling results. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the motor and drill bit of this utility model; Figure 3 This is a cross-sectional schematic diagram of the annular box of this utility model; Figure 4 This is a schematic diagram of the structure of the miniature air pump and the annular tube of this utility model; Figure 5 This is a schematic diagram of the sampling rod and sampling groove of this utility model; Figure 6 for Figure 1 A magnified view of A in the middle.

[0015] In the diagram: 100, support column; 110, motor; 200, drill bit; 300, annular box; 310, fixing tube; 311, servo motor; 312, piston plate; 313, exhaust pipe; 314, spring; 320, miniature air pump; 330, annular tube; 340, air guide tube; 350, baffle; 400, sampling assembly; 410, sampling rod; 411, sampling groove. Detailed Implementation

[0016] 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.

[0017] In practical implementation: such as Figures 1-6As shown, a soil sampling device for agricultural technology testing includes a support column 100 and a drill bit 200 installed at its bottom end, with an annular box 300 disposed between the support column 100 and the drill bit 200; it also includes sampling components 400, of which there are four, and the sampling components 400 are disposed inside the annular box 300 and are used to sample soil at different depths; wherein, the sampling component 400 includes a rotatable sampling rod 410, a set of through holes adapted to the sampling rod 410 are opened on the outer side of the annular box 300, one end of the sampling rod 410 is tapered, a set of sampling grooves 411 are opened inside the sampling rod 410, and two handles are provided on the outer side of the support column 100.

[0018] like Figure 3 and Figure 4 As shown, a fixed tube 310 is fitted on the outer side of the sampling rod 410 and fixedly installed inside the annular box 300. A servo motor 311 is installed inside the fixed tube 310. The output shaft of the servo motor 311 is threadedly connected to one end of the sampling rod 410 through a coupling. A piston plate 312 is installed on the outer side of the servo motor 311 and is slidably connected to the inner wall of the fixed tube 310.

[0019] The user can hold the handle and then place the drill bit 200 under the support column 100 against the corresponding area. The drill bit 200 is then used to break the soil, and the annular box 300 is inserted into the soil. After being inserted to the corresponding depth, when sampling is required, the servo motor 311 can be started to drive the sampling rod 410 to rotate. At the same time, external gas is introduced into the fixed tube 310, and the gas pushes the piston plate 312, causing the sampling rod 410 to move into the soil along the through hole. The conical end is used to break the soil, reducing the phenomenon that the sampling rod 410 cannot be inserted into the correct position due to soil hardness. During the breaking process, the soil will be squeezed into the sampling groove 411 along its conical end. After sampling is completed, the sampling rod 410 is retracted into the annular box 300. Then the annular box 300 can be inserted to different depths, and the remaining sampling rod 410 can be used to complete sampling operations at different depths.

[0020] like Figure 3 and Figure 4 As shown, a miniature air pump 320 and an annular tube 330 are installed inside the annular box 300. The output end of the miniature air pump 320 is connected to the annular tube 330 through a pipe. An air guide tube 340 is installed between the annular tube 330 and the fixed tube 310.

[0021] When the micro air pump 320 is started, gas is introduced into the annular tube 330 along the pipeline, and then into the fixed tube 310 along the corresponding air guide tube 340, thereby driving the piston plate 312 to move and push the sampling rod 410.

[0022] like Figure 3 and Figure 4As shown, an exhaust pipe 313 is installed at one end of the fixed pipe 310, and solenoid valves are installed on the outside of both the exhaust pipe 313 and the air guide pipe 340.

[0023] Users can open and close the corresponding solenoid valves according to their needs, thereby controlling the extension and retraction of the designated sampling rod 410, making it more intelligent.

[0024] like Figure 4 As shown, two springs 314 are installed on one side of the piston plate 312, and the end of the spring 314 away from the piston plate 312 is fixedly installed inside the fixed tube 310.

[0025] After sampling is completed, the user can stop the gas introduction into the fixed tube 310. Then, when the gas inside the fixed tube 310 is discharged, the spring 314 will drive the piston plate 312 and the sampling rod 410 to reset, completing the storage of the sampling rod 410.

[0026] like Figure 1 , Figure 3 and Figure 6 As shown, a set of baffles 350 for blocking the through holes is provided on the outer side of the annular box 300. The baffles 350 are installed on the outer side of the annular box 300 through a hinge seat. A torsion spring sleeved on the outer side of the hinge shaft is installed in the hinge seat.

[0027] A baffle 350 is used to block the through hole through which the sampling rod 410 needs to pass, reducing the occurrence of soil falling into the sampling trough 411 when the annular box 300 is placed inside the soil. In addition, a torsion spring is used so that the baffle 350 can be opened by the abutment when the sampling rod 410 is sampling, and the torsion spring can drive the baffle 350 to return to its original position to block after sampling is completed.

[0028] like Figure 1 and Figure 2 As shown, a motor 110 connected to the drill bit 200 is embedded at the bottom end of the support column 100, and a set of connecting rods is installed between the support column 100 and the annular box 300.

[0029] The motor 110 is used to drive the drill bit 200 to rotate, and the annular box 300 is placed into the soil. The connecting rod is used to support the annular box 300 and ensure its stability.

[0030] Working principle: The user holds the handle and then places the drill bit 200 under the support column 100 against the corresponding area. The motor 110 is then started, and the drill bit 200 breaks the soil, inserting the annular box 300 into the soil. After insertion to the corresponding depth, when sampling is required, the servo motor 311 is started, driving the sampling rod 410 to rotate. Simultaneously, external gas is introduced into the fixed tube 310, using the gas to push the piston plate 312, causing the sampling rod 410 to move along the through hole into the soil. Its conical end breaks the soil, reducing the possibility of the sampling rod 410 failing to be inserted properly due to soil hardness. During the breaking process, the soil is squeezed into the sampling groove 411 along its conical end. After sampling, the sampling rod 410 is retracted into the annular box 300. The annular box 300 can then be inserted to different depths, using the remaining sampling rod 410 to complete the sampling. Sampling operations at different depths are performed. During the insertion of the annular box 300, a baffle 350 is used to block the through-hole through which the sampling rod 410 needs to pass, reducing the possibility of soil accidentally falling into the sampling groove 411 when the annular box 300 is inserted into the soil. Furthermore, a torsion spring is used so that the baffle 350 is opened when the sampling rod 410 is sampling, and after sampling is completed, the torsion spring drives the baffle 350 to return to its original position. Finally, after the drill bit 200 is removed from the soil, the user can guide the sampling rod 410 out of the annular box 300, then rotate it to remove it, separating it from the servo motor 311. Then, the soil sample in the sampling groove 411 can be exported. The entire device is unaffected by soil hardness, ensuring the sampling placement effect. At the same time, it reduces the possibility of soil accidentally falling into the sampling rod 410 during the sampling process, ensuring more accurate sampling results.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A soil sampling device for agricultural technology testing, characterized in that, include: A support column (100) and a drill bit (200) installed at its bottom end, with an annular box (300) provided between the support column (100) and the drill bit (200). It also includes four sampling components (400), which are disposed inside the annular box (300) and used to sample soil at different depths; The sampling assembly (400) includes a rotatable sampling rod (410), and the outer side of the annular box (300) is provided with a set of through holes adapted to the sampling rod (410). One end of the sampling rod (410) is tapered, and a set of sampling grooves (411) is provided inside the sampling rod (410).

2. The soil sampling device for agricultural technology testing according to claim 1, characterized in that: The outer side of the sampling rod (410) is fitted with a fixed tube (310) that is fixedly installed in the annular box (300). A servo motor (311) is installed inside the fixed tube (310). The output shaft of the servo motor (311) is threadedly connected to one end of the sampling rod (410) through a coupling. A piston plate (312) that is slidably connected to the inner wall of the fixed tube (310) is installed on the outer side of the servo motor (311).

3. The soil sampling device for agricultural technology testing according to claim 2, characterized in that: The annular box (300) is equipped with a micro air pump (320) and an annular tube (330) respectively. The output end of the micro air pump (320) is connected to the annular tube (330) through a pipe. An air guide tube (340) is installed between the annular tube (330) and the fixed tube (310).

4. The soil sampling device for agricultural technology testing according to claim 3, characterized in that: An exhaust pipe (313) is installed at one end of the fixed pipe (310), and solenoid valves are installed on the outside of both the exhaust pipe (313) and the air guide pipe (340).

5. A soil sampling device for agricultural technology testing according to claim 2, characterized in that: Two springs (314) are installed on one side of the piston plate (312), and the end of the spring (314) away from the piston plate (312) is fixedly installed inside the fixed tube (310).

6. The soil sampling device for agricultural technology testing according to claim 1, characterized in that: The outer side of the annular box (300) is provided with a set of baffles (350) for blocking the through holes. The baffles (350) are installed on the outer side of the annular box (300) through a hinge seat. A torsion spring is installed in the hinge seat and sleeved on the outer side of the hinge shaft.

7. The soil sampling device for agricultural technology testing according to claim 1, characterized in that: The bottom end of the support column (100) is fitted with a motor (110) connected to the drill bit (200), and a set of connecting rods is installed between the support column (100) and the annular box (300).

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