A separation device and detection method for soil sampling and detection

Abstract

The present invention provides a separation device and a detection method for soil sampling and detection, which relates to the technical field of soil sampling. It includes at least three transmission rods fixedly installed at the upper end of the conical barrel, and a receiving sleeve corresponding to the transmission rods is installed on the transmission disk. In the fixed state, the transmission rods are inserted into the receiving sleeve. A plurality of groups of pairwise corresponding limiting blocks are installed on the side wall of the receiving sleeve, and a telescopic frame is slidably installed between every two of the limiting blocks. The combination structure of the conical barrel and the shrinkage head, combined with the design of the spiral strip and the cutting groove, realizes an efficient and accurate sampling process. The cutting groove can effectively cut the soil and reduce the sampling resistance. The design of the spiral strip can not only discharge the excess soil outwards to avoid pollution, but also generate a downward thrust to make the soil sample more compact. This design significantly improves the sampling efficiency and sample quality, and is particularly suitable for the soil sampling requirements at different depths.

Description

Technical Field

[0001] The present invention relates to the technical field of soil sampling, and more specifically, it relates to a separation device and a detection method for soil sampling and detection. Background Art

[0002] In the fields of environmental monitoring and geological exploration, soil sampling work faces diverse application scenarios and strict technical requirements. There are significant differences in soil characteristics and research purposes in different regions, which requires flexible adjustment of the specification parameters of the sampling tube during the sampling process. For example, when conducting surface soil pollution surveys, a sampling tube with a larger diameter may be required to obtain a sufficient sample volume, while when conducting deep soil structure research, a longer and thinner sampling tube is needed to reach the required depth. At the same time, in order to accurately analyze the vertical distribution characteristics of the soil, precise stratification of the collected samples is also required, which places higher requirements on the performance and operation convenience of the sampling equipment.

[0003] However, existing soil sampling equipment has defects in the replacement of the sampling tube. Most equipment requires external tools or special auxiliary equipment to complete the installation and disassembly of the sampling tube. This design severely restricts the efficiency of field operations. Operators have to carry additional tool equipment and spend a lot of time and physical effort on loading and unloading operations in harsh field environments. Especially in work scenarios where different specification sampling tubes need to be frequently replaced, the cumbersome disassembly and assembly process not only reduces work efficiency but also increases the risk of equipment damage. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the problems existing in the prior art, the present invention provides a separation device and a detection method for soil sampling and detection to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the present invention provides the following technical solution: A separation device for soil sampling and detection, comprising a conical barrel and a transmission disk coaxially arranged with the conical barrel;

[0008] The connecting mechanism includes at least three driving rods fixedly installed at the upper end of the conical barrel, and a receiving sleeve corresponding to the driving rods is installed on the driving disk. In the fixed state, the driving rods are inserted into the receiving sleeve. A plurality of pairs of corresponding limiting blocks are installed on the side wall of the receiving sleeve. A telescopic frame is slidably installed between every two of the limiting blocks. A positioning rod is installed on the telescopic frame, and the positioning rod is inserted into the receiving sleeve. A positioning groove is formed on the side wall of the driving rod, and the positioning rod is inserted into the positioning groove. Round rods are respectively installed at the upper and lower ends of the telescopic frame, and two expansion grooves are correspondingly formed on the side wall of the driving rod. When the positioning rod is inserted into the positioning groove, the round rods abut against the expansion grooves; and

[0009] The fixing mechanism includes a bottom plate attached to the soil. A plurality of spacer bars are equally spaced and installed on both sides of the bottom plate respectively. A plurality of insertion blocks are respectively installed at the lower ends of each of the spacer bars.

[0010] Preferably, the fixing mechanism further includes a plurality of insertion rods installed on the lower end surface of the bottom plate, and at least three surrounding rods are installed on the upper end surface of the bottom plate.

[0011] Preferably, the connecting mechanism further includes tension springs installed on the telescopic frame, and the plurality of tension springs are respectively connected to the side wall of the receiving sleeve.

[0012] Preferably, a lifting ring is coaxially and slidably connected to the receiving sleeve. Two fixing holes are respectively formed on each of the telescopic frames. A plurality of fixing rods corresponding to the fixing holes are installed on the lifting ring, and the fixing rods and the fixing holes are coaxially arranged.

[0013] Preferably, a plurality of guide rods are equally spaced and installed on the lifting ring. Guide grooves corresponding to the guide rods are formed on the side wall of the receiving sleeve, and the guide rods are slidably connected in the guide grooves.

[0014] Preferably, a rotating disk is threadedly connected to the receiving sleeve. A follower ring is coaxially installed on the rotating disk. A plurality of side blocks are installed at the lower end of the lifting ring, and the plurality of side blocks are respectively stuck in the follower ring.

[0015] Preferably, a pressing sleeve is slidably connected to the receiving sleeve. The plurality of guide rods are respectively connected to the pressing sleeve. An unlocking groove is formed on the pressing sleeve, and a plurality of vertical grooves are formed in the unlocking groove. A top ball is installed on the telescopic frame.

[0016] Preferably, a contraction head is installed at the lower end of the conical barrel, and a plurality of spiral strips are installed on the side walls of the conical barrel and the contraction head. A plurality of cutting grooves are formed at the lower end of the contraction head, and a plurality of side grooves are equidistantly formed on the side wall of the conical barrel. After soil sampling is completed, a dividing plate is inserted into the conical barrel, and a pushing plate is slidably connected in the side grooves, and the pushing plate abuts against the dividing plate.

[0017] Preferably, a lifting plate is slidably installed on a plurality of the surrounding rods, and a motor is connected to the lifting plate, and the extending end of the motor is connected to the transmission disc.

[0018] The present invention provides a detection method for soil sampling and detection, including the following steps:

[0019] Step 1, first install the conical barrel on the transmission disc, insert the transmission rod into the receiving sleeve and complete quick locking, then place the bottom plate on the surface of the target soil, insert the insertion rod into the soil to provide preliminary fixation, and the operator steps on the spacer bars on both sides, and uses the deformable characteristics of the spacer bars to adapt to the ground unevenness to ensure the stability of the entire device;

[0020] Step 2, the operator holds the motor and drives the conical barrel and the contraction head to start inserting into the soil. After starting the motor, the cutting grooves cut the soil, and the peripheral soil is discharged outwards under the action of the spiral strips, while the target soil sample is compacted and collected in the conical barrel. The sealed design of the transmission disc ensures that the soil sample will not leak from the top, guaranteeing the integrity of the sample;

[0021] Step 3, after sampling is completed, pull out the conical barrel from the soil, insert a plurality of dividing plates in sequence through the side grooves, and push the dividing plates into place with the pushing plate to realize the layered separation of the soil sample. Finally, remove the conical barrel and push out the layered soil sample to complete the entire sampling and separation process. The entire operation process is fast and convenient without the need to rely on external tools.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the present invention provides a separation device and a detection method for soil sampling and detection, having the following beneficial effects:

[0024] By adopting the combined structure of the conical barrel and the contraction head, combined with the design of the spiral strips and the cutting grooves, an efficient and accurate sampling process is realized. The cutting grooves can effectively cut the soil and reduce the sampling resistance, and the design of the spiral strips can not only discharge the excess soil outwards to avoid pollution, but also generate a downward thrust to make the soil sample more compact. This design significantly improves the sampling efficiency and sample quality, and is particularly suitable for soil sampling requirements at different depths.

[0025] Through the collaborative design of the bottom plate, spacer bars, and insertion blocks, stable support of the device on uneven ground is achieved. The deformable design of the spacer bars can adapt to different terrains, while the insertion rods provide additional fixing force. The operator can increase stability by stepping on the spacer bars. This human-machine coordinated design greatly improves the safety and reliability of field operations. The setting of the surrounding rods provides stable support for the motor, ensuring the smooth progress of the sampling process.

[0026] Through the quick connection system of the transmission rod and the receiving sleeve, in cooperation with components such as the telescopic frame and positioning rod, quick replacement of the sampling tube is achieved. Especially through the multiple positioning and locking mechanisms, the reliability of the connection is ensured. The coordinated design of the lifting ring and the rotating disk makes the locking and unlocking processes simple and fast, without the need for external tools. This innovative connection method not only improves work efficiency but also reduces the operation difficulty, solving the problem of the cumbersome replacement of the sampling tube in traditional equipment. Brief Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of a separation device and a detection method for soil sampling and detection in the present invention;

[0028] Figure 2 It is an exploded sectional view structure diagram of the conical barrel and the push plate in the present invention;

[0029] Figure 3 It is a sectional view structure diagram of the conical barrel in the present invention;

[0030] Figure 4 It is a structure diagram of the transmission rod and the receiving sleeve in the present invention;

[0031] Figure 5 In the present invention Figure 4 sectional view structure diagram;

[0032] Figure 6 It is a structure diagram of the lifting ring and the telescopic frame in the present invention;

[0033] Figure 7 It is a structure diagram of the receiving sleeve and the telescopic frame in the present invention;

[0034] Figure 8 It is an exploded structure diagram of the follower ring and the lifting ring in the present invention.

[0035] In the figure: 11, conical barrel; 12, transmission disc; 21, transmission rod; 22, receiving sleeve; 23, limit block; 24, telescopic frame; 25, positioning rod; 26, positioning groove; 27, round rod; 28, expansion groove; 29, tension spring; 31, bottom plate; 32, spacer bar; 33, insertion block; 34, insertion rod; 35, surrounding rod; 41, contraction head; 42, spiral strip; 43, cutting groove; 44, side groove; 45, dividing disc; 46, pushing disc; 47, lifting plate; 48, motor; 210, lifting ring; 211, fixing hole; 212, fixing rod; 213, guiding rod; 214, guiding groove; 215, rotating disc; 216, follower ring; 217, side block; 218, pressing sleeve; 219, unlocking groove; 220, vertical groove; 221, top ball. Detailed implementation mode

[0036] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0037] It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0038] In the present invention, unless otherwise stated, the orientations such as "upper, lower" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are usually in the left and right shown in the drawings; "inside, outside" refer to the inside and outside relative to the contour of each component itself, but the above orientation terms are not used to limit the present invention.

[0039] Please refer to Figures 1 to 4 , a separation device for soil sampling and detection, including a conical barrel 11 and a transmission disc 12 coaxially arranged with the conical barrel 11. The fixing mechanism includes a bottom plate 31 that fits on the soil. A plurality of spacer bars 32 are equidistantly installed on both sides of the bottom plate 31. A plurality of insertion blocks 33 are respectively installed at the lower ends of each spacer bar 32. The fixing mechanism also includes a plurality of insertion rods 34 installed on the lower end surface of the bottom plate 31. A plurality of surrounding rods 35 are installed on the upper end surface of the bottom plate 31. A contraction head 41 is installed at the lower end of the conical barrel 11, and a plurality of spiral strips 42 are installed on the side walls of the conical barrel 11 and the contraction head 41. A plurality of cutting grooves 43 are opened at the lower end of the contraction head 41. A plurality of side grooves 44 are equidistantly opened on the side wall of the conical barrel 11. When the soil sampling is completed, a dividing disc 45 is inserted into the conical barrel 11. A pushing disc 46 is slidably connected in the side groove 44, and the pushing disc 46 abuts against the dividing disc 45. A lifting plate 47 is slidably installed on a plurality of surrounding rods 35. A motor 48 is connected to the lifting plate 47, and the extending end of the motor 48 is connected to the transmission disc 12.

[0040] When taking soil samples from the corresponding soil, first install the corresponding conical barrel 11 on the transmission disc 12. The installation is completed through the transmission rod 21 and the receiving sleeve 22. Please refer to Figure 1 , then place the bottom plate 31 on the corresponding soil, and insert the insertion rod 34 at the lower end of the bottom plate 31 into the soil to fix the bottom plate 31. Then, the insertion blocks 33 on the spacer strips 32 on both sides are attached to the soil. At this time, the operator steps on the multiple spacer strips 32 on both sides with both feet. Since the soil is definitely not in an absolutely flat plane, the multiple spacer strips 32 will press on the soil under the action of the operator's own weight. Since the spacer strips 32 can deform, they can deform along with the shape of the soil, thus ensuring the stability of use.

[0041] After the fixation of the bottom plate is completed, the operator holds the motor 48 and drives the conical barrel 11 and the contraction head 41 to insert into the soil. Please refer to Figure 2 , then start the motor 48 to cut the soil with the cutting groove 43. The soil inside the conical barrel 11 enters the conical barrel 11, and the soil outside will be discharged to the outside with the rotation of the spiral strip 42, avoiding soil pollution. The rotation of the spiral strip 42 also applies a downward force to provide a certain extrusion force to the soil inside the conical barrel 11, so that the soil is compacted, and then the sampling process is completed. Please refer to Figure 3 , since the transmission disc 12 is inserted into the conical barrel 11, soil leakage is avoided. Then pull out the conical barrel 11. Please refer to Figure 2 , insert the multiple dividing discs 45 into the side grooves 44 respectively, and then insert the dividing discs 45 into the conical barrel 11 through the push plate 46 to separate the soil. Then remove the conical barrel 11 and push the sample out of the conical barrel 11. The mutual separation is ensured by the multiple dividing plates, ensuring the convenience of separation.

[0042] Please refer to Figures 4 to 8, the connecting mechanism includes at least three driving rods 21 fixedly installed at the upper end of the conical barrel 11, and a receiving sleeve 22 corresponding to the driving rods 21 is installed on the driving disk 12. In the fixed state, the driving rods 21 are inserted into the receiving sleeve 22. A plurality of pairs of corresponding limiting blocks 23 are installed on the side wall of the receiving sleeve 22. A telescopic frame 24 is slidably installed between every two limiting blocks 23. A positioning rod 25 is installed on the telescopic frame 24. The positioning rod 25 is inserted into the receiving sleeve 22. A positioning groove 26 is formed on the side wall of the driving rod 21. The positioning rod 25 is inserted into the positioning groove 26. Round rods 27 are respectively installed at the upper and lower ends of the telescopic frame 24, and two expansion grooves 28 are correspondingly formed on the side wall of the driving rod 21. When the positioning rod 25 is inserted into the positioning groove 26, the round rods 27 abut against the expansion grooves 28. The connecting mechanism further includes a tension spring 29 installed on the telescopic frame 24. A plurality of tension springs 29 are respectively connected to the side wall of the receiving sleeve 22. A lifting ring 210 is coaxially and slidably connected to the receiving sleeve 22. Two fixing holes 211 are respectively formed on each telescopic frame 24. A plurality of fixing rods 212 corresponding to the fixing holes 211 are installed on the lifting ring 210, and the fixing rods 212 and the fixing holes 211 are coaxially arranged. A plurality of guide rods 213 are equidistantly installed on the lifting ring 210. Guide grooves 214 corresponding to the guide rods 213 are formed on the side wall of the receiving sleeve 22. The guide rods 213 are slidably connected in the guide grooves 214. A rotating disk 215 is threadedly connected to the receiving sleeve 22. A follower ring 216 is coaxially installed on the rotating disk 215. A plurality of side blocks 217 are installed at the lower end of the lifting ring 210. The plurality of side blocks 217 are respectively stuck in the follower ring 216. A pressing sleeve 218 is slidably connected to the receiving sleeve 22. The plurality of guide rods 213 are respectively connected to the pressing sleeve 218. An unlocking groove 219 is formed on the pressing sleeve 218, and a plurality of vertical grooves 220 are formed in the unlocking groove 219. A top ball 221 is installed on the telescopic frame 24.

[0043] When it is necessary to connect the driving rod 21 and the receiving sleeve 22, first insert the driving rod 21 into the receiving sleeve 22. Please refer to Figure 5 , first, the upper end of the driving rod 21 abuts against the lower round rod 27. At this time, the round rod 27 will be pushed open, causing the tension spring 29 to stretch. Then the entire telescopic frame 24 slides outwards accordingly. When the first expansion groove 28 moves to the lowermost round rod 27, although this round rod 27 does not abut against the corresponding expansion groove 28, the plurality of positioning rods 25 still fit against the side wall of the driving rod 21. Therefore, the round rod 27 will not move either. Then the lower round rod 27 moves to the position of the positioning groove 26, and the positioning rod 25 moves to the position of the expansion groove 28. However, the uppermost round rod 27 abuts against the side wall of the driving rod 21. Therefore, it still cannot rebound. Then until the plurality of round rods 27 respectively abut against the expansion grooves 28 and the positioning rods 25 are inserted into the positioning grooves 26, the fixing process is completed at this time.

[0044] When it is necessary to fix the snap connection, please refer to Figure 4 and Figure 6 . By rotating the rotating disk 215, since the rotating disk 215 and the receiving sleeve 22 are threadedly connected, and the side block 217 is slidably connected to the follower ring 216, the lifting ring 210 can be driven to move upward. Then, the fixing rod 212 is inserted into the fixing hole 211. At this time, the telescopic frame 24 is locked, thus ensuring the stable fixation of the positioning rod 25 and the positioning groove 26. The sliding connection between the guide rod 213 and the guide groove 214 plays a guiding role. And when the guide rod 213 is connected to the lifting ring 210 and the pressing sleeve 218, when the fixing rod 212 is inserted into the fixing hole 211, the pressing sleeve 218 will move upward away from the top ball 221.

[0045] When it is necessary to unlock, please refer to Figure Figure 6 . At this time, rotate the rotating disk 215 in the reverse direction to make the lifting ring 210 slide downward, and then disconnect the connection between the fixing rod 212 and the fixing hole 211. Under the action of the guide rod 213, the unlocking groove 219 abuts against the top ball 221 synchronously, and then the plurality of top balls 221 expand outward synchronously. Therefore, the connection between the positioning rod 25 and the positioning groove 26 is unlocked, and thus the unlocking process is completed.

[0046] In all the solutions mentioned above, for the connection between two components, welding, bolt and nut connection, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated here one by one. For those mentioned above that involve fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A separation device for soil sampling and testing, comprising a cone barrel (11) and a transmission disc (12) arranged coaxially with the cone barrel (11); The connecting mechanism is characterized by: The invention comprises at least three transmission rods (21) fixedly mounted on the upper end of the cone barrel (11), and a receiving sleeve (22) corresponding to the transmission rod (21) is mounted on the transmission plate (12). When in a fixed state, the transmission rod (21) is inserted into the receiving sleeve (22). A plurality of groups of corresponding limit blocks (23) are mounted on the side wall of the receiving sleeve (22). A telescopic frame (24) is slidably mounted between every two of the limit blocks (23). A positioning rod (25) is mounted on the telescopic frame (24). The positioning rod (25) is inserted into the receiving sleeve (22). A positioning groove (26) is formed on the side wall of the transmission rod (21). The positioning rod (25) is inserted into the positioning groove (26). The upper and lower ends of the telescopic frame (24) are respectively provided with round rods (27), and the side wall of the transmission rod (21) is provided with two expansion grooves (28) correspondingly. When the positioning rod (25) is inserted into the positioning groove (26), the round rod (27) abuts against the expansion groove (28). The connection mechanism further comprises a tension spring (29) installed on the telescopic frame (24). A plurality of tension springs (29) are respectively connected to the side walls of the receiving sleeve (22). A lifting ring (210) is coaxially slidably connected to the receiving sleeve (22). Two fixing holes (211) are respectively provided on each telescopic frame (24). A plurality of fixing rods (212) corresponding to the fixing holes (211) are installed on the lifting ring (210). The fixed rod (212) and the fixing hole (211) are coaxially arranged, a plurality of guide rods (213) are installed on the lifting ring (210) at equal intervals, a guide groove (214) corresponding to the guide rod (213) is opened on the side wall of the receiving sleeve (22), and the guide rod (213) is slidably connected in the guide groove (214), a rotating disk (215) is threadedly connected on the receiving sleeve (22), and a follower ring (216) is coaxially installed on the rotating disk (215), a plurality of side blocks (217) are installed at the lower end of the lifting ring (210), and the plurality of side blocks (217) are respectively clamped in the follower ring (216), a lower pressure sleeve (218) is slidably connected to the receiving sleeve (22), and the plurality of guide rods (215) are connected to the receiving sleeve (22). 13) are respectively connected to the lower pressure sleeve (218), the lower pressure sleeve (218) is provided with an unlocking groove (219), and a plurality of vertical grooves (220) are provided in the unlocking groove (219), a top ball (221) is installed on the telescopic frame (24), the side block is slidably connected to the follower ring, and the side block is slidably connected to the follower ring to drive the lifting ring to move upward, the guide rod and the guide groove are slidably connected to play a guiding role, when the guide rod is connected to the lifting ring and the lower pressure sleeve, and the fixing rod is inserted into the fixing hole, the lower pressure sleeve will move upward away from the top ball, at this time, the rotating disk is rotated in the opposite direction to make the lifting ring slide downward, the connection between the fixing rod and the fixing hole is unlocked, and under the action of the guide rod, the unlocking groove contacts the top ball, so that the multiple top balls expand outward synchronously,The connection between the positioning rod and the positioning slot will be released; as well as The fixing mechanism comprises a bottom plate (31) attached to the soil, a plurality of spacer bars (32) being installed at equal intervals on both sides of the bottom plate (31), and a plurality of insertion blocks (33) being installed at the lower end of each spacer bar (32).

2. A separation device for soil sampling and detection according to claim 1, characterized in that: The fixing mechanism further comprises a plurality of insertion rods (34) mounted on the lower end surface of the bottom plate (31), and no less than three surrounding rods (35) are mounted on the upper end surface of the bottom plate (31).

3. A separation device for soil sampling and detection according to claim 2, characterized in that: A shrinking head (41) is installed at the lower end of the cone barrel (11), and a plurality of spiral strips (42) are installed on the side walls of the cone barrel (11) and the shrinking head (41). A plurality of cutting grooves (43) are opened at the lower end of the shrinking head (41), and a plurality of side grooves (44) are opened at equal intervals on the side wall of the cone barrel (11). When soil excavation is completed, a dividing plate (45) is inserted into the cone barrel (11), and a push plate (46) is slidably connected in the side groove (44), and the push plate (46) abuts against the dividing plate (45).

4. A separation device for soil sampling and testing according to claim 3, characterized in that: A lifting plate (47) is slidably mounted on the plurality of surrounding rods (35), a motor (48) is connected to the lifting plate (47), and an extended end of the motor (48) is connected to the transmission disc (12).

5. A method for soil sampling, using the separation device for soil sampling and detection according to claim 4, characterized in that: The following steps are involved: Step 1: first, the cone barrel (11) is mounted on the transmission plate (12), the transmission rod (21) is inserted into the receiving sleeve (22) and quickly locked, then the bottom plate (31) is placed on the target soil surface, the insertion rod (34) penetrates the soil to provide preliminary fixation, and the operator steps on the spacer bars (32) on both sides, using the deformable characteristics of the spacer bars (32) to adapt to the unevenness of the ground, thereby ensuring the stability of the entire device; Step 2: The operator holds the motor (48) to drive the cone barrel (11) and the retracting head (41) to start inserting into the soil. After starting the motor (48), the cutting groove (43) cuts the soil, and the peripheral soil is discharged outward under the action of the spiral strip (42), while the target soil sample is compacted and collected in the cone barrel (11). The sealing design of the transmission disc (12) ensures that the soil sample will not leak from the top, thereby ensuring the integrity of the sample. Step 3, after the sampling is completed, the cone barrel (11) is pulled out from the soil, and a plurality of partition plates (45) are inserted in sequence through the side grooves (44), and the partition plates (45) are pushed into place with the push plates (46) to achieve stratified separation of the soil samples. Finally, the cone barrel (11) is removed, and the stratified soil samples are pushed out to complete the entire sampling and separation process. The entire operation process is fast and convenient, and no external tools are required.

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