Soil detection stratified sampling device

Abstract

The utility model relates to the technical field of soil sampling devices, and discloses a soil detection stratified sampling device which comprises a movable supporting mechanism, a drilling mechanism, two sampling mechanisms, two first quick release mechanisms and four second quick release mechanisms. According to the utility model, the two sampling mechanisms arranged on the device can simultaneously collect two soil samples, and the motor drives the two screw rods to rotate so as to enable the lifting plate in threaded sleeve connection with the screw rods to lift, so that the two groups of hydraulic rods are controlled to stretch out and draw back, and finally, the sampling mechanisms are lifted while rotating; the sampling time is effectively shortened, the sample size of single sampling is increased, in addition, the design of a first quick-release mechanism and a second quick-release mechanism simplifies the mounting and dismounting process of the sampling mechanism, carrying and storage are convenient, the use of four electric telescopic rods and a plurality of ground cones ensures the stability of the device on different terrains, the adaptability is high, and the practicability is high. The working efficiency is effectively improved; and the reliability of sampling results is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of soil sampling devices, and in particular to a soil testing stratified sampling device. Background Technology

[0002] Soil testing is a crucial scientific activity that provides a comprehensive quality assessment for land used in construction, industry, commerce, and agriculture. This process allows for in-depth understanding of soil nutrient status, fertility levels, pH, heavy metal content, microbial activity, and potential contamination. The soil testing process typically involves carefully planned sampling site layout, collection of soil samples using specialized equipment, precise sample preparation, application of standardized analytical methods, detailed characterization of test results, systematic statistical analysis of data, and final quality assessment. Before conducting soil testing, specialized soil sampling equipment is generally used to ensure the representativeness and accuracy of the obtained samples, thus providing a reliable basis for subsequent analysis.

[0003] A search revealed an existing patent (publication number: CN215833039U) that discloses a "multi-point soil sampling device for municipal testing, including a handle, a rod, a drill bit, and a layer adjustment mechanism." This invention features a layer adjustment mechanism on the surface of the rod. By inserting the rod into the soil through the drill bit, and once the rod reaches the desired soil layer, the retaining cover is removed using a lever, and the rod is twisted using the handle to allow the sample tube to receive the soil. The rod can then be pulled out of the soil to complete the sampling. Since the soil is stored inside the sample tube, it can be directly removed and replaced after sampling, avoiding soil residue and simplifying the operation process, thus providing convenience for the user.

[0004] In the process of developing this application, the inventors discovered the following problems with the prior art: Although the aforementioned comparative patent provides a multi-point soil sampling device for municipal testing by setting up components such as a handle, rod, drill foot, and layer adjustment mechanism, it requires purely manual operation and can only perform one sampling at a time, thus failing to meet the need for saving manpower and time. Therefore, those skilled in the art have provided a soil testing layer sampling device to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a soil testing stratified sampling device. This device is equipped with two sampling mechanisms capable of simultaneously collecting two soil samples. A motor drives two lead screws to rotate, causing a threaded lifting plate to rise and fall. This, in turn, controls the extension and retraction of two sets of hydraulic rods, ultimately enabling the sampling mechanism to rotate and rise simultaneously. This effectively shortens sampling time and increases the sample size per sampling. Furthermore, the design of the first and second quick-release mechanisms simplifies the installation and disassembly process of the sampling mechanism, making it easy to carry and store. The use of four electric telescopic rods and multiple ground cones ensures the stability of the device on different terrains, making it highly adaptable, effectively improving work efficiency, and ensuring the reliability of sampling results.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a soil testing stratified sampling device, comprising a mobile support mechanism, a drilling mechanism, two sampling mechanisms, two first quick-release mechanisms, and four second quick-release mechanisms. The mobile support mechanism includes a base plate, two L-shaped plates, and a top plate. The drilling mechanism includes two lead screws and two first hydraulic rods. Each of the two sampling mechanisms includes a top cover and a sampling tube shell. Each of the two first quick-release mechanisms includes a square groove plate. Each of the four second quick-release mechanisms includes a beveled pin.

[0007] Both lead screws have annular grooves at their lower positions. The two lead screws are rotatably mounted inside the base plate through the two annular grooves. A second hydraulic rod is fixedly mounted at the lower end of each of the two lead screws. The lower center of each of the two second hydraulic rods is fixedly mounted to the upper center of each of the two square slot plates. Insert plates are snapped into each of the two square slot plates. The lower center of each of the two insert plates is fixedly mounted to the upper center of each of the two top covers. Two bolts are symmetrically mounted near the lower edge of each of the two top covers. Two cylindrical grooves are opened at the upper edge of each of the two sampling tube shells corresponding to the dimensions of the four bolts. Four inclined pins are slidably mounted inside the walls of the four cylindrical grooves.

[0008] Furthermore, the inner lower positions of the two L-shaped plates are respectively fixed to both sides of the base plate, the top plate is fixed to the upper position between the two L-shaped plates, the outer upper positions of the two L-shaped plates are fixedly provided with handles, the lower ends of the two L-shaped plates are fixedly provided with long angle steel near the four corners, and the lower ends of the four long angle steel are fixedly provided with brake casters.

[0009] Furthermore, two electric telescopic rods are fixedly installed at the middle position of the lower end of the two L-shaped plates in an axially symmetrical manner, and a fixing plate is fixedly installed at the lower end of each of the four electric telescopic rods. A ground cone is threaded through and sleeved on both sides of each of the four fixing plates.

[0010] Furthermore, a lifting plate is slidably disposed between the two L-shaped plates, and the two first hydraulic rods are fixedly disposed symmetrically between the upper sides of the lifting plate and the lower end of the top plate, respectively. The threads of the two lead screws are respectively threaded into the interior of the lifting plate, and a motor is fixedly disposed at the center of the lower end of the top plate. The lower positions of the two lead screws are respectively connected to the output end of the motor through a synchronous belt and a synchronous pulley.

[0011] Furthermore, the upper ends of the two first hydraulic rods are respectively fixedly connected to the upper ends of the two second hydraulic rods through pipes sequentially built into the top plate and the two lead screws.

[0012] Furthermore, a drill probe housing is fixedly installed at the lower end of both sampling tube shells.

[0013] Furthermore, rectangular grooves are formed at the lower front position of the two square groove plates, and inclined blocks are slidably arranged in both rectangular grooves. Two first springs are fixedly arranged symmetrically between one side of the two inclined blocks and the inner wall of the two rectangular grooves.

[0014] Furthermore, pull rings are rotatably provided on both sides of the outer end discs of the four inclined pins, and second springs are fixedly provided between the inner sides of the outer end discs of the four inclined pins and the outer walls of the two sampling tube shells.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model proposes a soil testing stratified sampling device. This device, through the design of two sampling mechanisms, can simultaneously sample two soil samples, improving sampling efficiency. By driving two lead screws to rotate via a motor, the lifting plate threaded to the two lead screws rises or falls, thereby causing the two connected first hydraulic rods and two second hydraulic rods to extend or shorten. This allows the two sampling mechanisms to rotate and descend simultaneously, making the sampling process smoother, effectively reducing sampling time, lowering operational difficulty, and increasing the sample capacity obtained in a single sampling, thus significantly improving efficiency and the accuracy and reliability of sampling results.

[0017] 2. This utility model proposes a soil testing stratified sampling device. Through the design of a first quick-release mechanism and a second quick-release mechanism, the device allows users to easily install and disassemble the sampling mechanism, simplifying the operation process. Pressing the inclined block into the rectangular groove allows for easy removal or insertion of the insert plate connected to the sampling mechanism into the square groove plate, making the entire device easy to carry and store, and convenient for transportation to different sampling locations. After sampling, the user can pull the inclined pin out from the insertion hole in the insert post wall at the lower end of the top cover by pulling the pull ring, easily separating the top cover and the sampling tube shell, thus facilitating the extraction of soil samples. While ensuring a stable connection between the sampling tube shell and the top cover during drilling, this device effectively simplifies the sample extraction process and significantly improves work efficiency.

[0018] 3. The present invention proposes a soil testing stratified sampling device. This device utilizes four electric telescopic rods and multiple ground cones to ensure the stability of the device on different terrains, so that the device can be firmly fixed even on uneven ground, ensuring the accuracy and reliability of sampling. The four electric telescopic rods allow for adjustment of their length according to different terrains, enabling the device to adapt to various sampling locations and ensuring stable operation under various terrain conditions, thereby improving the applicability and reliability of sampling. Attached Figure Description

[0019] Figure 1 This is an isometric schematic diagram of the present invention;

[0020] Figure 2 This is a front view schematic diagram of the present invention;

[0021] Figure 3 This is an isometric view of the present invention without the base plate installed.

[0022] Figure 4 This is an isometric schematic diagram of the first quick-release mechanism, the second quick-release mechanism, and the sampling mechanism of this utility model;

[0023] Figure 5 This is an isometric view of the first quick-release mechanism of this utility model when viewed from the bottom.

[0024] Figure 6 This is an isometric orthosectional view of the first quick-release mechanism of this utility model.

[0025] Figure 7 This is an isometric view of the two second quick-release mechanisms and the sampling mechanism without the top cover of this utility model when viewed from above.

[0026] Figure 8 This is an isometric view of the top cover of this utility model when viewed from the bottom.

[0027] Figure 9 For the present utility model Figure 7 An enlarged schematic diagram of the structure at point A.

[0028] Legend:

[0029] 1. Mobile support mechanism; 2. Drilling mechanism; 3. Sampling mechanism; 4. First quick-release mechanism; 5. Second quick-release mechanism; 101. Base plate; 102. L-shaped plate; 103. Long angle steel; 104. Brake caster wheel; 105. Electric telescopic rod; 106. Fixed plate; 107. Ground cone; 108. Handle; 109. Top plate; 201. Motor; 202. Lead screw; 203. First hydraulic rod; 204. Second hydraulic rod; 205. Lifting plate; 206. Annular groove; 301. Drill head housing; 302. Sampling tube housing; 303. Top cover; 401. Square groove plate; 402. Insert plate; 403. Inclined block; 404. First spring; 501. Inclined pin; 502. Pull ring; 503. Second spring. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8 and Figure 9 The present invention provides an embodiment of a soil testing stratified sampling device, comprising a mobile support mechanism 1, a drilling mechanism 2, two sampling mechanisms 3, two first quick-release mechanisms 4, and four second quick-release mechanisms 5. The mobile support mechanism 1 includes a base plate 101, two L-shaped plates 102, and a top plate 109. The drilling mechanism 2 includes two lead screws 202 and two first hydraulic rods 203. Each of the two sampling mechanisms 3 includes a top cover 303 and a sampling tube shell 302. Each of the two first quick-release mechanisms 4 includes a square groove plate 401. Each of the four second quick-release mechanisms 5 includes a beveled pin 501.

[0032] Both lead screws 202 have annular grooves 206 at their lower positions. The two lead screws 202 are rotatably mounted inside the bottom plate 101 through the two annular grooves 206. The lower ends of the two lead screws 202 are fixedly mounted with second hydraulic rods 204. The lower center of the two second hydraulic rods 204 is fixedly mounted to the upper center of the two square slot plates 401. Insert plates 402 are snapped into the two square slot plates 401. The lower center of the two insert plates 402 is fixedly mounted to the upper center of the two top covers 303. The lower ends of the two top covers 303 are symmetrically mounted with two plugs near their edges. The upper edges of the two sampling tube shells 302 are each provided with two cylindrical grooves corresponding to the dimensions of the four plugs. The four inclined pins 501 are slidably mounted inside the walls of the four cylindrical grooves.

[0033] Specifically, the upper ends of the two lead screws 202 in the drilling mechanism 2 are rotatably mounted to the lower end of the top plate 109 in the movable support mechanism 1. When the two lead screws 202 rotate, the bottom plate 101 in the movable support mechanism 1 provides good limiting and support for the two lead screws 202 in the drilling mechanism 2 at the positions of the two annular grooves 206. The lower ends of the two second hydraulic rods 204 in the drilling mechanism 2 are well connected to the two top covers 303 in the two sampling mechanisms 3 through the two square slot plates 401 and the two insert plates 402 in the two first quick-release mechanisms 4, respectively. The four inclined pins 501 in the four second quick-release mechanisms 5 are snapped into the insertion holes of the four plug columns at the lower end of the two top covers 303 in the two sampling mechanisms 3, respectively, to ensure good and stable connection between the two top covers 303 and the two sampling tube shells 302 at their lower ends.

[0034] Reference Figure 2 and Figure 3 Two L-shaped plates 102 are fixedly installed on the lower inner sides of the bottom plate 101 on both sides. The top plate 109 is fixedly installed between the two L-shaped plates 102 on the upper side. Handles 108 are fixedly installed on the upper outer sides of the two L-shaped plates 102. Long angle steel 103 is fixedly installed near the four corners of the lower end of the two L-shaped plates 102. Brake casters 104 are fixedly installed at the lower ends of the four long angle steel 103. Two electric telescopic rods 105 are fixedly installed symmetrically at the middle of the lower end of the two L-shaped plates 102. Fixing plates 106 are fixedly installed at the lower ends of the four electric telescopic rods 105. Ground cones 107 are threaded through and sleeved on both sides of the four fixing plates 106.

[0035] Specifically, in use, according to actual needs, the user can fully retract the four electric telescopic rods 105 and remove and store the two sampling mechanisms 3 and the four second quick-release mechanisms 5 by operating the two first quick-release mechanisms 4 respectively. After arriving at the sampling location, the user can push the device to the appropriate sampling position through the two handles 108, then close the brakes of the four brake casters 104 and control the extension of the four electric telescopic rods 105 to touch the ground. Since the terrain of the sampling location may not be flat, the four electric telescopic rods 105 may be of different lengths to adapt well to different terrains. Then, the bolts fixed at the upper end of each ground cone 107 are used to rotate and drill into the ground to securely fix the device.

[0036] Reference Figure 2 and Figure 3 A lifting plate 205 is slidably disposed between two L-shaped plates 102. Two first hydraulic rods 203 are fixedly disposed symmetrically between the upper sides of the lifting plate 205 and the lower end of the top plate 109. The threads of the two lead screws 202 are threaded into the interior of the lifting plate 205. A motor 201 is fixedly disposed at the center of the lower end of the top plate 109. The lower positions of the two lead screws 202 are connected to the output end of the motor 201 through a synchronous belt and a synchronous pulley, respectively. The upper ends of the two first hydraulic rods 203 are fixedly connected to the center of the upper ends of the two second hydraulic rods 204 through pipes that are sequentially built into the top plate 109 and the two lead screws 202.

[0037] Specifically, after the device is fixed, the user can reinstall the two sampling mechanisms 3 and the four second quick-release mechanisms 5 by operating the two first quick-release mechanisms 4. According to actual needs, the user can start the motor 201 to drive the two lead screws 202 to rotate. The threads of the two lead screws 202 are arranged in opposite directions with axial symmetry. The lifting plate 205, which is threadedly connected to the two lead screws 202, slides between the two L-shaped plates 102, allowing for smooth lifting and lowering. The two sampling mechanisms 3 are well connected to the lower ends of the two lead screws 202 through the two first quick-release mechanisms 4 and the two second hydraulic rods 204, respectively. Therefore, the two sampling mechanisms 3 rotate with the two lead screws 202. When the lifting plate 205 rises, the two first hydraulic rods 203 are compressed and shortened, and the two second hydraulic rods 204 connected to them extend accordingly, driving the two sampling mechanisms 3 to descend. This allows the two sampling mechanisms 3 to descend while rotating, and in conjunction with adjusting the length of the four electric telescopic rods 105, achieve smoother drilling and sampling. In one operation, two soil samples can be taken out simultaneously using the two sampling mechanisms 3. After sampling, the user can reverse the motor 201 to lower the lifting plate 205, stretch the two first hydraulic rods 203, and shorten the two second hydraulic rods 204 accordingly. In conjunction with the two rotating sampling mechanisms 3, it is easier to extract the samples.

[0038] Reference Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 9 Two sampling tube shells 302 are each fixedly equipped with a drill probe shell 301 at their lower ends. Two square slot plates 401 are provided with rectangular slots at their lower front positions. Two inclined blocks 403 are slidably arranged in the two rectangular slots. Two first springs 404 are fixedly arranged axially symmetrically between one side of the two inclined blocks 403 and the inner wall of the two rectangular slots. Pull rings 502 are rotatably arranged on both sides of the outer end discs of the four inclined pins 501. Second springs 503 are fixedly arranged between the inner side of the outer end discs of the four inclined pins 501 and the outer wall of the two sampling tube shells 302.

[0039] Specifically, after the two sampling mechanisms 3 complete sampling and extraction, the user can press the two inclined blocks 403 into the two rectangular slots respectively, so as to compress the four first springs 404, thereby easily removing the two insert plates 402 together with the two sampling mechanisms 3 fixedly connected at the lower end. For each sampling mechanism 3, the user can pull the two pull rings 502 to compress the two second springs 503, so that the two inclined pins 501 can be dislodged from the insertion holes of the plug column wall at the lower end of the top cover 303, thereby easily separating the top cover 303 and the sampling tube shell 302, and then taking out the soil sample inside the tube.

[0040] Working principle: When in use, according to actual needs, the user can fully retract the four electric telescopic rods 105 and remove and store the two sampling mechanisms 3 and the four second quick-release mechanisms 5 by operating the two first quick-release mechanisms 4 respectively. After arriving at the sampling location, the user can push the device to the appropriate sampling position through the two handles 108, then close the brakes of the four brake casters 104 and control the extension of the four electric telescopic rods 105 to touch the ground. Since the terrain of the sampling location may not be flat, the four electric telescopic rods 105 may be of different lengths, thus adapting well to different terrains. Then, the bolts fixed at the upper end of each ground cone 107 are used to rotate and drill into the ground to securely fix the device.

[0041] Secondly, after the device is fixed, the user can reinstall the two sampling mechanisms 3 and the four second quick-release mechanisms 5 by operating the two first quick-release mechanisms 4. According to actual needs, the user can start the motor 201 to drive the two lead screws 202 to rotate. The threads of the two lead screws 202 are arranged in opposite directions with axial symmetry. The lifting plate 205, which is threadedly connected to the two lead screws 202, slides between the two L-shaped plates 102, allowing for smooth lifting and lowering. The two sampling mechanisms 3 are well connected to the lower ends of the two lead screws 202 through the two first quick-release mechanisms 4 and the two second hydraulic rods 204, respectively. Therefore, the two sampling mechanisms 3 rotate with the rotation of the two lead screws 202. When the lifting plate 205 rises, the two first hydraulic rods 203 are compressed and shortened, and the two second hydraulic rods 204 connected to them extend accordingly, driving the two sampling mechanisms 3 to descend. This allows the two sampling mechanisms 3 to rotate and descend simultaneously, and in conjunction with adjusting the length of the four electric telescopic rods 105, achieve smoother drilling and sampling. Moreover, in one operation, two soil samples can be taken out simultaneously using the two sampling mechanisms 3. After sampling is completed, the user can reverse the motor 201 to lower the lifting plate 205, stretch the two first hydraulic rods 203, and shorten the two second hydraulic rods 204 accordingly. In conjunction with the two rotating sampling mechanisms 3, it is easier to extract the samples.

[0042] Finally, after the two sampling mechanisms 3 have completed sampling and extraction, the user can press the two inclined blocks 403 into the two rectangular slots respectively, so as to compress the four first springs 404, thereby easily removing the two insert plates 402 together with the two sampling mechanisms 3 fixedly connected at the lower end. For each sampling mechanism 3, the user can pull the two pull rings 502 to compress the two second springs 503, so that the two inclined pins 501 can be dislodged from the insertion holes of the plug column wall at the lower end of the top cover 303, thereby easily separating the top cover 303 and the sampling tube shell 302, and then taking out the soil sample inside the tube.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A soil testing stratified sampling device, comprising a movable support mechanism (1), a drilling mechanism (2), two sampling mechanisms (3), two first quick-release mechanisms (4), and four second quick-release mechanisms (5), characterized in that: The mobile support mechanism (1) includes a base plate (101), two L-shaped plates (102) and a top plate (109); the drilling mechanism (2) includes two lead screws (202) and two first hydraulic rods (203); the two sampling mechanisms (3) each include a top cover (303) and a sampling tube shell (302); the two first quick-release mechanisms (4) each include a square groove plate (401); and the four second quick-release mechanisms (5) each include a beveled pin (501). Both lead screws (202) have annular grooves (206) at their lower positions. The two lead screws (202) are rotatably mounted inside the base plate (101) through the two annular grooves (206). The lower ends of the two lead screws (202) are fixedly provided with second hydraulic rods (204). The lower center of the two second hydraulic rods (204) is fixedly provided to the upper center of the two square slot plates (401). Insert plates (402) are snapped into the two square slot plates (401). The lower center of the two insert plates (402) is fixedly provided to the upper center of the two top covers (303). The lower ends of the two top covers (303) are symmetrically provided with two plugs near their edges. The upper edges of the two sampling tube shells (302) are provided with two cylindrical grooves corresponding to the dimensions of the four plugs. The four inclined pins (501) are slidably mounted inside the walls of the four cylindrical grooves.

2. The soil testing stratified sampling device according to claim 1, characterized in that: The two L-shaped plates (102) are fixedly installed on the lower inner sides of the bottom plate (101) respectively. The top plate (109) is fixedly installed on the upper part between the two L-shaped plates (102). The upper outer sides of the two L-shaped plates (102) are each fixedly installed with a handle (108). The lower ends of the two L-shaped plates (102) are each fixedly installed with long angle steel (103) near the four corners. The lower ends of the four long angle steel (103) are each fixedly installed with a brake caster (104).

3. The soil testing stratified sampling device according to claim 1, characterized in that: Two electric telescopic rods (105) are fixedly installed at the middle position of the lower end of the two L-shaped plates (102) in an axially symmetrical manner. A fixing plate (106) is fixedly installed at the lower end of each of the four electric telescopic rods (105). A ground cone (107) is threaded through both sides of each of the four fixing plates (106).

4. The soil testing stratified sampling device according to claim 1, characterized in that: A lifting plate (205) is slidably disposed between the two L-shaped plates (102). Two first hydraulic rods (203) are fixedly disposed symmetrically between the upper sides of the lifting plate (205) and the lower end of the top plate (109). The threads of the two lead screws (202) are threaded into the interior of the lifting plate (205). A motor (201) is fixedly disposed at the center of the lower end of the top plate (109). The lower positions of the two lead screws (202) are connected to the output end of the motor (201) through a synchronous belt and a synchronous pulley.

5. A soil testing stratified sampling device according to claim 1, characterized in that: The upper ends of the two first hydraulic rods (203) are respectively fixedly connected to the upper center of the two second hydraulic rods (204) through pipes that are sequentially built into the top plate (109) and the two lead screws (202).

6. A soil testing stratified sampling device according to claim 1, characterized in that: Both sampling tube shells (302) are fixedly provided with drill probe shells (301) at their lower ends.

7. A soil testing stratified sampling device according to claim 1, characterized in that: A rectangular groove is provided at the lower front position of the two square groove plates (401). An inclined block (403) is slidably arranged in each of the two rectangular grooves. Two first springs (404) are fixedly arranged axially symmetrically between one side of the two inclined blocks (403) and the inner wall of the two rectangular grooves.

8. A soil testing stratified sampling device according to claim 1, characterized in that: Pull rings (502) are rotatably provided on both sides of the outer end discs of the four inclined pins (501), and second springs (503) are fixedly provided between the inner side of the outer end discs of the four inclined pins (501) and the outer wall of the two sampling tube shells (302).

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