A geological soil sampling tube

Abstract

The utility model discloses a geological geotechnical sampling tube relates to geotechnical sampling technical field, including sampling tube main part, the one side fixed connection of sampling tube main part has first connecting ring, and the other side fixed connection of sampling tube main part has second connecting ring, and the inside of sampling tube main part is provided with installation layer, and the inboard of installation layer is installed with heating mechanism, and the inboard of slot is provided with locating groove, and the outside of second connecting ring is installed with horizontal positioning mechanism, and the outside of first connecting ring is provided with the clamping slot, and the outside of second connecting ring is provided with the sliding slot, and the inboard sliding connection of sliding slot has the locating column, and the inboard fixed connection of sliding slot has the compression spring, and the outside of second connecting ring is installed with quick release mechanism. The device adopts the double locking of rotary buckle and compression spring drive locating column to realize quick splicing, and ensures the circumferential positioning precision through arc guide groove, and melts the frozen earth in combination built -in heating layer, in addition, when disassembling, single pull connecting piece can release bidirectional locking, and in addition, the modular design supports layered sampling.

Description

Technical Field

[0001] This utility model relates to the field of soil and rock sampling technology, and more specifically, to a geological soil and rock sampling tube. Background Technology

[0002] Traditional geological and soil sampling tubes, especially in permafrost environments, often face two major challenges. First, the freezing of the soil creates enormous sampling resistance, and forced sampling can easily damage the sample structure or the tube itself. Conventional methods rely on hammering equipment, which is cumbersome and prone to damage. Second, stratified sampling requires replacing tubes of different lengths or disassembling the entire tube, a time-consuming and labor-intensive process with low efficiency. Furthermore, it is difficult to guarantee the location accuracy of multiple samplings in complex geological formations.

[0003] Existing split-type sampling tubes mostly use threaded connections, which are slow to assemble and disassemble, and are prone to loosening and failure in vibration environments. They also lack a fast and reliable two-way locking mechanism, which cannot simultaneously meet the needs of efficient thawing of frozen soil and convenient stratified sampling, thus restricting the efficiency and sample quality of geological exploration. Therefore, in order to address the above technical problems, a geological and soil sampling tube is proposed here. Utility Model Content

[0004] The purpose of this utility model is to provide a geological and soil sampling tube, which adopts a double locking mechanism of rotating buckle and compression spring to drive positioning column to achieve quick splicing, and ensures circumferential positioning accuracy through arc-shaped guide groove. Combined with built-in heating layer to melt frozen soil, the bidirectional locking can be released by pulling the connecting piece during disassembly. In addition, the modular design supports layered sampling.

[0005] This utility model is achieved through the following technical solution:

[0006] A geological and soil sampling tube includes a sampling tube body. A first connecting ring is fixedly connected to one side of the sampling tube body, and a second connecting ring is fixedly connected to the other side of the sampling tube body. An installation layer is formed inside the sampling tube body, and a heating mechanism is installed inside the installation layer. A slot is formed on one side of the first connecting ring, and a positioning groove is formed inside the slot. A lateral positioning mechanism is installed outside the second connecting ring. A retaining groove is formed outside the first connecting ring, and a sliding groove is formed outside the second connecting ring. A positioning post is slidably connected inside the sliding groove, and the positioning post matches the retaining groove. A compression spring is fixedly connected inside the sliding groove, and the end of the compression spring is fixedly connected to one side of the positioning post. A quick-release mechanism is installed outside the second connecting ring.

[0007] Preferably, the heating mechanism includes a mounting base, a heater, and a heat-conducting pipe. The mounting base is fixedly connected to the inner side of the mounting layer, the heater is fixedly connected to the outer side of the mounting base, and the heat-conducting pipe is fixedly connected to the outer side of the heater, with the heat-conducting pipe laid on the inner side of the mounting layer.

[0008] Preferably, the outer side of the sampling tube body is provided with an installation groove, and the installation groove is connected to the installation layer. The outer side of the sampling tube body is detachably connected with a first sealing plate by fixing bolts, and the first sealing plate covers the installation groove.

[0009] Preferably, the lateral positioning mechanism includes a fixed rod and a positioning plate. The fixed rod is fixedly connected to the outside of the second connecting ring, and the positioning plate is fixedly connected to the end of the fixed rod. The positioning plate matches the slot and the positioning groove. The slot, the positioning groove and the positioning plate are all arc-shaped structures.

[0010] Preferably, the quick-release mechanism includes a connecting groove, a limiting groove, and a connector. The connecting groove is located outside the second connecting ring, the limiting groove is located between the sliding groove and the connecting groove, and the connector is fixedly connected to the outside of the positioning post.

[0011] Preferably, the end of the connector is located inside the connecting groove, and the connector and the limiting groove are slidably connected.

[0012] Preferably, a second sealing plate is detachably connected to the outside of the second connecting ring by fixing bolts, and the second sealing plate covers the connecting groove.

[0013] The technical solution of this utility model has at least the following beneficial effects:

[0014] This utility model proposes a geological and soil sampling tube, which effectively solves the problem of using traditional sampling tubes in frozen soil environments through a double-locking design. The combination of the rotating buckle and the spring column enables quick splicing and firm fixation, making operation simple and the connection reliable, avoiding loosening caused by vibration. The built-in heating layer can evenly melt frozen soil, significantly reducing sampling resistance and ensuring sample integrity. The quick-release structure allows for easy disassembly with a simple pull, greatly improving the efficiency of stratified sampling. The arc-shaped guide groove design ensures precise alignment when splicing multiple tube sections, keeping the sampling positions at different depths consistent. The modular construction makes it easy to carry and assemble, adapting to various complex geological conditions. The overall design balances sampling quality and ease of operation, providing an efficient and reliable sampling tool for frozen soil and conventional geological exploration. Attached Figure Description

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

[0016] Figure 2 This is a partial side sectional view of the present invention;

[0017] Figure 3 for Figure 2 Enlarged view of A in the middle;

[0018] Figure 4 for Figure 1 Enlarged view of B in the middle;

[0019] Figure 5 for Figure 1 Enlarged view of C;

[0020] Figure 6 This is a partial front sectional view of the present invention;

[0021] Figure 7 for Figure 6 Enlarged view of D;

[0022] Reference numerals in the attached drawings: 1. Sampling tube body; 2. First connecting ring; 3. Second connecting ring; 4. Mounting layer; 5. Mounting groove; 6. First sealing plate; 7. Mounting base; 8. Heater; 9. Heat-conducting pipe; 10. Slot; 11. Positioning groove; 12. Fixing rod; 13. Positioning plate; 14. Card slot; 15. Slide groove; 16. Positioning post; 17. Compression spring; 18. Connecting groove; 19. Second sealing plate; 20. Limiting groove; 21. Connecting piece. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-7 This utility model proposes a geological and soil sampling tube, comprising a sampling tube body 1, which serves as the main sampling container for holding collected soil and rock samples. A first connecting ring 2 is fixedly connected to one side of the sampling tube body 1, for connecting with an adjacent sampling tube segment. A second connecting ring 3 is fixedly connected to the other side of the sampling tube body 1, for connecting with another adjacent sampling tube segment. An installation layer 4 is provided inside the sampling tube body 1 to house a heating assembly. A heating mechanism is installed inside the installation layer 4 to heat the sampling tube in frozen soil environments.

[0025] A slot 10 is provided on one side of the first connecting ring 2. The slot 10 is used to guide the insertion of the positioning plate of the adjacent sampling tube segment. A positioning groove 11 is provided on the inner side of the slot 10. The positioning groove 11 is used to fix the rotational position of the positioning plate. A lateral positioning mechanism is installed on the outside of the second connecting ring 3. The lateral positioning mechanism is used to achieve circumferential positioning of the sampling tube segment. A retaining groove 14 is provided on the outside of the first connecting ring 2. The retaining groove 14 is used to cooperate with the positioning post to achieve axial fixation. A sliding groove 15 is provided on the outside of the second connecting ring 3. The sliding groove 15 is used to accommodate the sliding positioning post. A positioning post 16 is slidably connected to the inner side of the sliding groove 15. The positioning post 16 is used to cooperate with the retaining groove to achieve axial locking. The positioning post 16 and the retaining groove 14 are matched. A compression spring 17 is fixedly connected to the inner side of the sliding groove 15. The compression spring 17 is used to provide the return spring force of the positioning post. The end of the compression spring 17 is fixedly connected to one side of the positioning post 16. A quick-release mechanism is installed on the outside of the second connecting ring 3. The quick-release mechanism is used to quickly disassemble the sampling tube segment.

[0026] The heating mechanism includes a mounting base 7, a heater 8, and a heat-conducting pipe 9. The mounting base 7 is used to fix the heating assembly and is fixedly connected to the inner side of the mounting layer 4. The heater 8 is used to generate heat and is fixedly connected to the outside of the mounting base 7. The heat-conducting pipe 9 is used to uniformly conduct heat and is fixedly connected to the outside of the heater 8, and is laid on the inner side of the mounting layer 4.

[0027] The sampling tube body 1 has an external mounting groove 5 for inspecting and maintaining internal components, and the mounting groove 5 is connected to the mounting layer 4. A first sealing plate 6 is detachably connected to the external side of the sampling tube body 1 by fixing bolts. The first sealing plate 6 is used to seal the mounting groove 5 and covers the mounting groove 5.

[0028] The lateral positioning mechanism includes a fixing rod 12 and a positioning plate 13. The fixing rod 12 is used to connect the positioning plate and is fixedly connected to the outside of the second connecting ring 3. The positioning plate 13 is used to cooperate with the slot and the positioning groove to achieve circumferential positioning. The positioning plate 13 is fixedly connected to the end of the fixing rod 12, and the positioning plate 13 matches both the slot 10 and the positioning groove 11. The slot 10, the positioning groove 11, and the positioning plate 13 are all arc-shaped structures, which facilitate rotational positioning.

[0029] The quick-release mechanism includes a connecting groove 18, a limiting groove 20, and a connector 21. The connecting groove 18 is used to accommodate the connector and is located outside the second connecting ring 3. The limiting groove 20 is used to restrict the movement trajectory of the connector and is located between the sliding groove 15 and the connecting groove 18. The connector 21 is used for manually operating the positioning post and is fixedly connected to the outside of the positioning post 16.

[0030] The end of the connector 21 is located inside the connecting groove 18, and the connector 21 and the limiting groove 20 are slidably connected. The slidable connection ensures the stability of the connector movement.

[0031] The second connecting ring 3 is detachably connected to a second sealing plate 19 by fixing bolts. The second sealing plate 19 is used to protect the quick release mechanism and covers the connecting groove 18.

[0032] The working principle of a geological and soil sampling tube based on an embodiment is as follows: the sampling tube is modularly designed to achieve multi-section splicing. During splicing, the second connecting ring 3 of the rear sampling tube body 1 is aligned with the first connecting ring 2 of the front section, so that the arc-shaped positioning plate 13 at the end of the fixing rod 12 is inserted into the slot 10. At this time, the positioning post 16 is squeezed back into the slide groove 15 by the first connecting ring 2, compressing the compression spring 17. The sampling tube is continued to be advanced and rotated clockwise. Under the arc-shaped guide of the slot 10, the positioning plate 13 slides into the positioning groove 11 to complete the circumferential limit. At the same time, the positioning post 16 is automatically aligned with the slot 14, and the compression spring 17 releases its elastic force to push the positioning post 16 into the slot 14 to achieve axial locking. The dual positioning mechanism ensures that the sampling tube maintains structural stability in a vibration environment.

[0033] When using the assembled sampling tube to sample frozen soil, the heating mechanism inside the mounting layer 4 is activated. The heater 8 on the mounting base 7 generates heat energy, which is evenly transferred to the inner wall of the sampling tube body 1 through the heat-conducting pipes 9 densely distributed in the mounting layer 4, melting the frozen soil to reduce sampling resistance. When disassembling, loosen the fixing bolts of the second sealing plate 19 to expose the connecting groove 18, pull the connecting piece 21 outward, and drive the positioning column 16 to slide away from the slot 14 along the limiting groove 20. At the same time, the compression spring 17 is compressed again. Then, rotate the sampling tube counterclockwise so that the positioning plate 13 retracts from the positioning groove 11 into the slot 10, and the sampling tube section can be separated. This design supports quick assembly and disassembly, which is convenient for the layered collection and independent packaging of soil samples at different depths, significantly improving the efficiency of frozen soil geological exploration.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A geological and soil sampling tube, characterized in that: The sample tube body (1) is provided with a first connecting ring (2) fixedly connected to one side and a second connecting ring (3) fixedly connected to the other side. An installation layer (4) is provided inside the sample tube body (1) and a heating mechanism is installed inside the installation layer (4). A slot (10) is provided on one side of the first connecting ring (2) and a positioning groove (11) is provided inside the slot (10). A transverse positioning mechanism is installed outside the second connecting ring (3). A slot (14) is provided outside the first connecting ring (2) and a sliding groove (15) is provided outside the second connecting ring (3). A positioning post (16) is slidably connected inside the sliding groove (15). The positioning post (16) matches the slot (14). A compression spring (17) is fixedly connected inside the sliding groove (15) and the end of the compression spring (17) is fixedly connected to one side of the positioning post (16). A quick-release mechanism is installed outside the second connecting ring (3).

2. The geological and soil sampling tube according to claim 1, characterized in that: The heating mechanism includes a mounting base (7), a heater (8), and a heat-conducting pipe (9). The mounting base (7) is fixedly connected to the inner side of the mounting layer (4), the heater (8) is fixedly connected to the outside of the mounting base (7), and the heat-conducting pipe (9) is fixedly connected to the outside of the heater (8) and laid on the inner side of the mounting layer (4).

3. A geological and soil sampling tube according to claim 1, characterized in that: The sampling tube body (1) has an installation groove (5) on its outside, and the installation groove (5) is connected to the installation layer (4). The sampling tube body (1) is detachably connected to a first sealing plate (6) by fixing bolts, and the first sealing plate (6) covers the installation groove (5).

4. A geological and soil sampling tube according to claim 1, characterized in that: The lateral positioning mechanism includes a fixed rod (12) and a positioning plate (13). The fixed rod (12) is fixedly connected to the outside of the second connecting ring (3). The positioning plate (13) is fixedly connected to the end of the fixed rod (12). The positioning plate (13) is matched with the slot (10) and the positioning groove (11). The slot (10), the positioning groove (11) and the positioning plate (13) are all arc-shaped structures.

5. A geological and soil sampling tube according to claim 1, characterized in that: The quick-release mechanism includes a connecting groove (18), a limiting groove (20), and a connector (21). The connecting groove (18) is located outside the second connecting ring (3). The limiting groove (20) is located between the sliding groove (15) and the connecting groove (18). The connector (21) is fixedly connected to the outside of the positioning post (16).

6. A geological and soil sampling tube according to claim 5, characterized in that: The end of the connector (21) is located inside the connecting groove (18), and the connector (21) and the limiting groove (20) are slidably connected.

7. A geological and soil sampling tube according to claim 5, characterized in that: The second connecting ring (3) is detachably connected to a second sealing plate (19) by a fixing bolt, and the second sealing plate (19) covers the connecting groove (18).

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