Soil detection sampling device not easy to damage soil layer

Abstract

The invention discloses a soil detection sampling device not easy to damage a soil layer, the soil detection sampling device comprises an active driving mechanism and a sampling mechanism, the active driving mechanism is provided with the sampling mechanism which is driven by the active driving mechanism to lift and rotate, the sampling mechanism comprises an outer sleeve, a first spiral blade, a drill rod mechanism and a connector, the drill rod mechanism is provided with the connector, and the first spiral blade is arranged on the outer sleeve. An outer sleeve arranged on the drill rod mechanism in a sleeving manner is arranged on the connecting body, a plurality of sampling through holes are formed in the peripheral surface of the outer sleeve, a first spiral blade is arranged on the peripheral surface of the outer sleeve, and a sample soil accommodating space is reserved between the drill rod mechanism and the outer sleeve; the drill rod mechanism comprises a tensioning mechanism and a second spiral blade arranged on the peripheral surface of the tensioning mechanism, and compared with the prior art, the soil layer structure can not be damaged easily, and the accuracy of related soil sample data is improved.

Description

[Technical Field]

[0001] This invention relates to the technical field of soil testing, and in particular to the technical field of a soil testing and sampling device that does not easily damage the soil layer. [Background Technology]

[0002] Soil environmental monitoring refers to determining environmental quality (or pollution level) and its changing trends by measuring representative values ​​of factors affecting soil environmental quality. Soil monitoring, as commonly understood, generally includes technical aspects such as sampling, sample preparation, analytical methods, result characterization, data statistics, and quality evaluation. The rocks on the Earth's surface are weathered, gradually breaking down into loose, varying-sized mineral particles (called parent material). Soil is formed and evolved under the combined influence of various soil-forming factors, including parent material, climate, organisms, topography, and time. Soil composition is complex, generally consisting of solid, liquid, and gaseous phases such as minerals, organic matter from the decomposition of plant and animal remains, water, and air. China has abundant and diverse soil resources, each with different nutrient contents and varying degrees of pollution. Therefore, soil sampling is necessary, and the collected samples are then tested.

[0003] A rapid soil sampling device for soil testing, with application number CN202010225295.8, involves a first gear meshing with a third gear when sampling is required. The motor rotates, causing a second spiral rod to move downwards a certain distance. Rotating the handle causes the first gear to move upwards and mesh with the third gear. At this point, the first spiral rod is stuck in the soil and does not rotate. The rotating first spiral rod then pushes the generated soil through a channel into the discharge pipe, and simultaneously through a receiving trough into the discharge pipe. When a certain amount accumulates, the sealing gate opens, and the sample falls into the sampling cup. The entire device is then moved a certain distance, and the receiving plate is rotated at a certain angle, causing the empty sampling cup to rotate below the discharge pipe. This significantly increases sampling efficiency and is simple to operate and portable. However, because the first spiral rod rotates and pushes the generated soil through a channel into the discharge pipe, it damages the soil layer structure, affecting the accuracy of the relevant soil sample data. [Summary of the Invention]

[0004] The purpose of this invention is to solve the problems in the prior art and to propose a soil testing and sampling device that does not easily damage the soil layer, thereby improving the accuracy of relevant soil sample data.

[0005] To achieve the above objectives, the present invention proposes a soil testing and sampling device that does not easily damage the soil layer, comprising an active drive mechanism and a sampling mechanism. The active drive mechanism is equipped with a sampling mechanism that is driven to lift, rotate, and move. The sampling mechanism includes an outer sleeve, a first helical blade, a drill rod mechanism, and a connecting body. The drill rod mechanism is equipped with a connecting body, and the connecting body is equipped with an outer sleeve fitted onto the drill rod mechanism. The outer sleeve has several sampling through holes on its circumference. The outer circumference of the outer sleeve is equipped with a first helical blade. A sample soil accommodating space is left between the drill rod mechanism and the outer sleeve. The drill rod mechanism includes a tensioning mechanism and a second helical blade disposed on the outer circumference of the tensioning mechanism.

[0006] Preferably, the tensioning mechanism includes a drill rod body, a cavity, a drive rod, several slots, and several tensioning bodies. The drill rod body has a cavity, and the outer circumferential surface of the drill rod body has slots communicating with the cavity. Each slot has a tensioning body that cooperates with it. The upper end of the drill rod body has a drive rod located in the cavity, and the drive rod drives the tensioning bodies to move along the radial direction of the drill rod body.

[0007] Preferably, each tensioning body has a seat on its inner side, each seat has an inclined sliding hole, each sliding hole has a sliding body, and each sliding body is fixedly connected to the drive rod through a support.

[0008] Preferably, guide rods are provided on the inner sides of both the upper and lower ends of the tensioning body, with the upper end of the upper guide rod flush with the upper end of the tensioning body and the lower end of the lower guide rod flush with the lower end of the tensioning body.

[0009] Preferably, the upper end of the drill rod body is provided with a bracket, the bracket is provided with a rotatable screw body, the upper end of the drive rod is provided with a threaded blind hole that mates with the screw body, and the upper end of the screw body is provided with a rotating disk.

[0010] Preferably, the active drive mechanism includes a lifting mechanism and a rotating mechanism disposed on the lifting mechanism.

[0011] Preferably, the rotating mechanism includes a rotary drive motor, a driving gear, and a driven gear. The driving end of the rotary drive motor is provided with a driving gear, and the drill rod body is provided with a driven gear that meshes with the driving gear.

[0012] Preferably, the lifting mechanism includes a gantry frame, a mounting base, several sliding rods, a reduction motor, a lead screw, and a lead screw nut. The gantry frame is provided with sliding rods, the lower end of the sliding rods is provided with a mounting base, the upper end of the mounting base is provided with a lead screw nut, the lead screw nut contains a lead screw, and the gantry frame is provided with a reduction motor that drives the lead screw.

[0013] Preferably, each of the two columns of the gantry frame is provided with a cylindrical body, and each cylindrical body is provided with an openable and closable door on one side.

[0014] Preferably, each sampling through hole is provided with a partition, each sampling through hole has a retaining ring at its inner end, each partition has a magnet at its inner end that attracts and fixes the retaining ring, and each partition has a cap at its outer end.

[0015] The beneficial effects of this invention are as follows: This invention uses an active drive mechanism to drive the sampling mechanism to rotate and descend simultaneously, facilitating its entry into the soil. A tensioning mechanism clamps and fixes the sampled soil within the sample-containing space, preventing slippage of the sampled soil as it rises after sampling. Compared to existing technologies, this invention is less likely to damage the soil layer structure and improves the accuracy of relevant soil sample data.

[0016] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. [Attached Image Description]

[0017] Figure 1 This is a schematic diagram of the structure of a soil testing and sampling device that does not easily damage the soil layer according to the present invention;

[0018] Figure 2 yes Figure 1 A magnified view of A in the middle.

[0019] In the diagram: 1-Active drive mechanism, 2-Sampling mechanism, 11-Lifting mechanism, 12-Rotating mechanism, 22-First spiral blade, 23-Drill rod mechanism, 24-Connector, 25-Sampling through hole, 26-Baffle plate, 27-Retaining ring, 28-Magnet, 29-Cap body, 111-Gantry frame, 112-Mounting base, 113-Sliding rod, 114-Gear motor, 115-Lead screw, 116-Lead screw nut, 117-Cylinder body, 118-Cylinder door, 121-Rotating drive motor 122-Driving gear, 123-Driven gear, 231-Tensioning mechanism, 232-Second helical blade, 2311-Drill rod body, 2312-Cavity, 2313-Drive rod, 2314-Slot, 2315-Tensioning body, 2316-Seat body, 2317-Sliding hole, 2318-Sliding body, 2319-Support, 23110-Guide rod, 23111-Bracket, 23112-Screw body, 23113-Threaded blind hole, 23114-Rotating disk.

Detailed Implementation Methods

[0020] See Figure 1 , 2This invention discloses a soil testing and sampling device that does not easily damage the soil layer, comprising an active drive mechanism 1 and a sampling mechanism 2. The active drive mechanism 1 is equipped with the sampling mechanism 2, which is driven to lift, rotate, and move. The sampling mechanism 2 includes an outer sleeve 21, a first helical blade 22, a drill rod mechanism 23, and a connecting body 24. The drill rod mechanism 23 is equipped with the connecting body 24, and the connecting body 24 is equipped with the outer sleeve 21 fitted onto the drill rod mechanism 23. The outer sleeve 21 has a plurality of sampling through holes 25 on its circumferential surface, and the outer circumferential surface of the outer sleeve 21 is equipped with the first helical blade 22. A soil sample receiving space 210 is left between the drill rod mechanism 23 and the outer sleeve 21. The drill rod mechanism 23 includes a tensioning mechanism 231 and a tensioning mechanism. The second helical blade 232 on the outer circumferential surface of the structure 231, the tensioning mechanism 231 includes a drill rod body 2311, a cavity 2312, a drive rod 2313, several slots 2314 and several tensioning bodies 2315. The drill rod body 2311 has a cavity 2312 inside, and the outer circumferential surface of the drill rod body 2311 has slots 2314 communicating with the cavity 2312. Each slot 2314 has a tensioning body 2315 that cooperates with it. The upper end of the drill rod body 2311 has a drive rod 2313 located in the cavity 2312. The drive rod 2313 drives the tensioning bodies 2315 to move along the radial direction of the drill rod body 2311. Each tensioning body 2315 has a seat 2316 on its inner side. Each of the 316 components is provided with an inclined sliding hole 2317, and each sliding hole 2317 contains a sliding body 2318. Each sliding body 2318 is fixedly connected to the drive rod 2313 via a support 2319. The tensioning body 2315 has guide rods 23110 on the inner sides of both its upper and lower ends. The upper end of the upper guide rod 23110 is flush with the upper end of the tensioning body 2315, and the lower end of the lower guide rod 23110 is flush with the lower end of the tensioning body 2315. The upper end of the drill rod body 2311 is provided with a bracket 23111, and the bracket 23111 has a rotatable screw body 23112. The upper end of the drive rod 2313 has a threaded blind hole 23113 that mates with the screw body 23112. The upper end of the drill rod body 23112 is provided with a rotating disk 23114. The active drive mechanism 1 includes a lifting mechanism 11 and a rotating mechanism 12 mounted on the lifting mechanism 11. The rotating mechanism 12 includes a rotary drive motor 121, a drive gear 122, and a driven gear 123. The drive end of the rotary drive motor 121 is provided with the drive gear 122. The drill rod body 2311 is provided with a driven gear 123 that meshes with the drive gear 122. The lifting mechanism 11 includes a gantry frame 111, a mounting base 112, several sliding rods 113, a reduction motor 114, a lead screw 115, and a lead screw nut 116. The gantry frame 111 is provided with sliding rods 113, and the lower end of the sliding rods 113 is provided with a mounting base 112.The upper end of the mounting base 112 is provided with a lead screw nut 116 via a connecting frame. A lead screw 115 is located inside the lead screw nut 116. A reduction motor 114 driving the lead screw 115 is mounted on the gantry frame 111. A cylinder 117 is provided on each of the two columns of the gantry frame 111. An openable and closable cylinder door 118 is provided on one side of each cylinder 117. A partition 26 is provided inside each sampling through hole 25. A retaining ring 27 is provided at the inner end of each sampling through hole 25. A magnet 28, attracted and fixed to the retaining ring 27, is provided at the inner end of each partition 26. A cap 29 is provided at the outer end of each partition 26.

[0021] Working process of this invention:

[0022] In the operation of this invention, a soil testing and sampling device that does not easily damage the soil layer, involves adding soil to the cylinder 117 to increase its weight. Then, a rotary drive motor 121 and a reduction motor 114 are activated. The rotary drive motor 121, through the engagement of a drive gear 122 and a driven gear 123, drives the drill rod 2311 to rotate. The drill rod 2311 drives the second helical blade 232 to rotate. The drill rod 2311, through a connecting body 24, drives the outer sleeve 21 to rotate. The outer sleeve 21 drives the first helical blade 22 to rotate, facilitating the entry of the sampling mechanism 2 into the soil layer. Meanwhile, the reduction motor 114, through the engagement of a lead screw 115 and a lead screw nut 116, drives the mounting base 112 to descend. The mounting base 112 then drives the sampling mechanism 2 to descend into the soil layer. When the sampling mechanism 2 reaches the required depth within the soil layer, the rotary drive motor 121 is stopped. 21 and the geared motor 114, then rotate the rotating disk 23114 to drive the screw body 23112 to rotate. At the same time, the screw body 23112 drives the drive rod 2313 to move downward. The drive rod 2313 drives the sliding body 2318 to move downward through the support 2319. The sliding body 2318 drives the seat body 2316 to move away from the drive rod 2313 through the cooperation of the sliding hole 2317. The seat body 2316 drives the tensioning body 2315 to move. The tensioning body 2315 drives the second spiral blade 232 on it to enter the soil layer between the outer tube 21 and the second spiral blade 232. Then, the geared motor 114 is started to drive the mounting seat 112 to rise through the cooperation of the lead screw 115 and the lead screw nut 116. The mounting seat 112 drives the sampling mechanism 2 to rise back to its original position. Then, the partition 26 is opened to take out the soil sample at the required depth.

[0023] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. A soil testing and sampling device that does not easily damage the soil layer, characterized in that: The system includes an active drive mechanism (1) and a sampling mechanism (2). The active drive mechanism (1) is equipped with a sampling mechanism (2) that is driven to lift and rotate. The sampling mechanism (2) includes an outer sleeve (21), a first spiral blade (22), a drill rod mechanism (23), and a connecting body (24). The drill rod mechanism (23) is equipped with a connecting body (24). The connecting body (24) is equipped with an outer sleeve (21) that is fitted onto the drill rod mechanism (23). The outer sleeve (21) has several sampling through holes (25) on its circumferential surface. The outer circumferential surface of the outer sleeve (21) is equipped with a first spiral blade (22). A sample soil accommodating space (210) is left between the drill rod mechanism (23) and the outer sleeve (21). The drill rod mechanism (23) includes a tensioning mechanism (231) and a second spiral blade (232) on the outer circumferential surface of the tensioning mechanism (231).

2. The soil testing and sampling device that does not easily damage the soil layer as described in claim 1, characterized in that: The tensioning mechanism (231) includes a drill rod body (2311), a cavity (2312), a drive rod (2313), a plurality of slots (2314), and a plurality of tensioning bodies (2315). The drill rod body (2311) has a cavity (2312) inside. The outer circumferential surface of the drill rod body (2311) has slots (2314) that communicate with the cavity (2312). Each slot (2314) has a tensioning body (2315) that cooperates with it. The upper end of the drill rod body (2311) has a drive rod (2313) located in the cavity (2312). The drive rod (2313) drives the tensioning body (2315) to move along the radial direction of the drill rod body (2311).

3. The soil testing and sampling device that does not easily damage the soil layer as described in claim 2, characterized in that: The tensioning body (2315) is provided with a seat (2316) on its inner side. The seat (2316) is provided with an inclined sliding hole (2317). The sliding hole (2317) is provided with a sliding body (2318). The sliding body (2318) is fixedly connected to the drive rod (2313) through a support (2319).

4. The soil testing and sampling device that does not easily damage the soil layer as described in claim 2, characterized in that: The tensioning body (2315) has guide rods (23110) on the inner sides of both the upper and lower ends. The upper end of the upper guide rod (23110) is flush with the upper end of the tensioning body (2315), and the lower end of the lower guide rod (23110) is flush with the lower end of the tensioning body (2315).

5. The soil testing and sampling device that does not easily damage the soil layer as described in claim 2, characterized in that: The upper end of the drill rod body (2311) is provided with a bracket (23111), the bracket (23111) is provided with a rotatable screw body (23112), the upper end of the drive rod (2313) is provided with a threaded blind hole (23113) that cooperates with the screw body (23112), and the upper end of the screw body (23112) is provided with a rotating disk (23114).

6. The soil testing and sampling device that does not easily damage the soil layer as described in claim 2, characterized in that: The active drive mechanism (1) includes a lifting mechanism (11) and a rotating mechanism (12) mounted on the lifting mechanism (11).

7. The soil testing and sampling device that does not easily damage the soil layer as described in claim 6, characterized in that: The rotating mechanism (12) includes a rotary drive motor (121), a drive gear (122) and a driven gear (123). The drive end of the rotary drive motor (121) is provided with a drive gear (122), and the drill rod body (2311) is provided with a driven gear (123) that meshes with the drive gear (122).

8. The soil testing and sampling device that does not easily damage the soil layer as described in claim 6, characterized in that: The lifting mechanism (11) includes a gantry frame (111), a mounting base (112), several sliding rods (113), a reduction motor (114), a lead screw (115), and a lead screw nut (116). The gantry frame (111) is provided with sliding rods (113), the lower end of the sliding rods (113) is provided with a mounting base (112), the upper end of the mounting base (112) is provided with a lead screw nut (116), the lead screw nut (116) is provided with a lead screw (115), and the gantry frame (111) is provided with a reduction motor (114) that drives the lead screw (115).

9. The soil testing and sampling device that does not easily damage the soil layer as described in claim 8, characterized in that: The gantry frame (111) has a cylinder (117) on each of its two columns, and each cylinder (117) has an openable and closable door (118) on one side.

10. A soil testing and sampling device that does not easily damage the soil layer as described in any one of claims 1 to 9, characterized in that: Each sampling through hole (25) is provided with a partition (26), each sampling through hole (25) is provided with a retaining ring (27) at its inner end, each partition (26) is provided with a magnet (28) that attracts and fixes the retaining ring (27) at its inner end, and each partition (26) is provided with a cap (29) at its outer end.

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