A sampling device for geological exploration

Abstract

This utility model relates to the field of geological exploration and discloses a sampling device for geological exploration, including a base, a control top plate on the base, a lifting bracket between the control top plate and the base, a fixed cylinder fixedly connected to the lower end of the control top plate, a sampling tube slidably inserted into the fixed cylinder, and a sampling window arranged through the base directly below the sampling tube. The sampling tube is formed by two sampling shovels with semi-circular cross-sections joined together. A fixed truncated cone is fixedly connected to the control top plate at the center of the fixed cylinder, and a control cavity is provided inside the fixed truncated cone. Sliding insertion holes are provided on both sides of the fixed truncated cone, and fixed locking blocks are slidably inserted into the sliding insertion holes. Fixed locking holes that cooperate with the fixed locking blocks are provided on both sides of the sampling shovel. An adjustment mechanism for driving the fixed locking blocks on both sides to slide relative to each other is provided in the control cavity. The advantage of this utility model compared with the prior art is that it can maintain the integrity of the soil during the soil sample collection process.

Description

Technical Field

[0001] This utility model relates to the field of geological exploration technology, specifically to a sampling device used for geological exploration. Background Technology

[0002] In fields such as geological exploration, environmental monitoring, and agricultural research, it is often necessary to perform stratified sampling and analysis of soil in specific areas to obtain information on the physical, chemical, or biological properties of soil layers at different depths.

[0003] Currently, the mainstream soil sampling method usually uses a cylindrical sampler. When using it, the sampling tube is vertically pressed or drilled into the target soil to a predetermined depth, so that the soil is placed inside the sampling tube. The sampling tube, which is full of soil sample, is then removed from the soil as a whole. The soil sample inside the sampling tube is poured out or tapped out into a collection container or work surface. However, during the process of "pouring out" or "tapping out" the soil sample from the sampling tube, due to the looseness of the soil sample, it is very easy for the soil sample to scatter after being poured out, affecting the integrity of the sample. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the above-mentioned technical difficulties and provide a sampling device for geological exploration that can maintain the integrity of the soil during the soil sample collection process.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a sampling device for geological exploration, including a base, a control top plate on the base, a lifting bracket between the control top plate and the base, a fixed cylinder fixedly connected to the lower end of the control top plate, a sampling tube slidably inserted into the fixed cylinder, and a through sampling window arranged on the base directly below the sampling tube; the sampling tube is formed by joining two sampling shovels with a semi-circular cross-section, a fixed frustum fixedly connected to the control top plate at the center of the fixed cylinder, a control cavity inside the fixed frustum, movable insertion holes on both sides of the fixed frustum, fixed locking blocks slidably inserted into the movable insertion holes, fixed locking holes cooperating with the fixed locking blocks on both sides of the sampling shovel, and an adjustment mechanism for driving the fixed locking blocks on both sides to slide relative to each other inside the control cavity.

[0006] As an improvement, the adjustment mechanism includes a gear rotatably connected to the center of the control cavity, a knob rotatably connected to the upper end of the control top plate to drive the gear to rotate, and a rack that meshes with the gear is fixedly connected to one end of the fixed locking block extending into the control cavity, with the racks on both sides arranged in a centrally symmetrical manner.

[0007] As an improvement, a slider is fixedly connected to the upper end of the rack, and a groove that cooperates with the slider is provided at the upper end of the control cavity. A fixing spring is fixedly connected between the end of the groove near the gear and the slider.

[0008] As an improvement, the two sampling shovels are provided with a limiting block and a limiting slot on their mating surfaces, respectively.

[0009] As an improvement, the lifting bracket includes a limiting slide rod fixedly connected to the upper end of the base, a limiting slide hole that cooperates with the limiting slide rod on the control top plate, a lifting screw rotatably connected to the base, a lifting screw hole that cooperates with the lifting screw on the control top plate, and a motor that drives the lifting screw to rotate fixedly connected to the base.

[0010] As an improvement, the inner wall of the sampling shovel slides against the outer wall of the fixed frustum.

[0011] The advantages of this utility model compared with the prior art are as follows: by combining and separating two semi-circular sampling shovels, the soil sample can be transferred without damage, avoiding the sample scattering caused by the traditional "pouring out" method. The sampling shovels can be quickly locked and unlocked by the fixing locking block, which facilitates the installation and disassembly of the sampling tube. During use, the sampling tube is inserted into the soil for sampling by the lifting bracket, which is convenient, time-saving and labor-saving. Attached Figure Description

[0012] Figure 1 This is an exploded view of a sampling device for geological exploration according to this utility model.

[0013] Figure 2 This is a schematic diagram of a sampling device for geological exploration according to the present invention.

[0014] Figure 3 This is a cross-sectional view of a sampling device for geological exploration according to this utility model.

[0015] Figure 4 This is a schematic diagram of the control top plate structure of a sampling device for geological exploration according to this utility model.

[0016] As shown in the figure: 1. Base; 2. Control top plate; 3. Sampling shovel; 4. Sampling window; 5. Fixed cylinder; 6. Fixed locking block; 7. Fixed lock hole; 8. Gear; 9. Rack; 10. Knob; 11. Slider; 12. Fixed spring; 13. Limiting slide bar; 14. Lifting screw; 15. Motor; 16. Fixed truncated cone; 17. Control cavity. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1 to 4 As shown, a sampling device for geological exploration includes a base 1, a control top plate 2 on the base 1, a lifting bracket between the control top plate 2 and the base 1, the lifting bracket including a limiting slide rod 13 fixedly connected to the upper end of the base 1, a limiting slide hole on the control top plate 2 that cooperates with the limiting slide rod 13, a lifting screw 14 rotatably connected to the base 1, a lifting screw hole on the control top plate 2 that cooperates with the lifting screw 14, a motor 15 fixedly connected to the base 1 to drive the lifting screw 14 to rotate, a fixed cylinder 5 fixedly connected to the lower end of the control top plate 2, a sampling cylinder slidably inserted into the fixed cylinder 5, and a through sampling window 4 on the base 1 located directly below the sampling cylinder.

[0019] The sampling cylinder is formed by joining two sampling shovels 3 with a semi-circular cross-section. The joining surfaces of the two sampling shovels 3 are respectively provided with a limiting insert and a limiting slot. The control top plate 2 is fixedly connected to a fixed frustum 16 at the center of the fixed cylinder 5. The inner wall of the sampling shovel 3 slides against the outer wall of the fixed frustum 16. The fixed frustum 16 is provided with a control cavity 17. Movable insertion holes are provided on both sides of the fixed frustum 16. Fixed locking blocks 6 are slidably inserted into the movable insertion holes. Fixed locking holes 7 that cooperate with the fixed locking blocks 6 are provided on both sides of the sampling shovel 3.

[0020] The control cavity 17 is provided with an adjustment mechanism that drives the two fixed locking blocks 6 on both sides to slide relative to each other. The adjustment mechanism includes a gear 8 rotatably connected to the center of the control cavity 17. A knob 10 that drives the gear 8 to rotate is rotatably connected to the upper end of the control top plate 2. Each fixed locking block 6 extends into the control cavity 17 and is fixedly connected to a rack 9 that meshes with the gear 8. The racks 9 on both sides are arranged symmetrically. A slider 11 is fixedly connected to the upper end of the rack 9. The upper end of the control cavity 17 is provided with a groove that cooperates with the slider 11. A fixing spring 12 is fixedly connected between the end of the groove near the gear 8 and the slider 11.

[0021] In practical use, firstly, the two semi-cylindrical sampling shovels 3 are joined together, and positioned by the interlocking of the limiting blocks and limiting slots on their joining surfaces. Then, the joined sampling tube is slid upwards and inserted into the fixed cylinder 5, so that the inner wall of the sampling shovel 3 slides against the outer wall of the fixed frustum 16, and the outer wall is against the inner wall of the fixed cylinder 5. At this time, the knob 10 at the top of the control plate 2 is rotated to drive the gear 8 in the control cavity 17 to rotate. The gear 8 drives the two racks 9 meshing with it to slide relative to each other. The racks 9 drive the fixing locking blocks 6 to slide into the control cavity 17, compressing the fixing spring 12. When the fixing locking hole 7 corresponds to the movable insertion hole, the knob 10 is released. Under the restoring force of the fixing spring 12, the fixing locking blocks 6 on both sides are pushed away from each other and inserted into the corresponding fixing locking holes 7, so that the sampling tube is fixed in the fixed cylinder 5. The device is placed above the soil area to be tested, with the sampling window 4 on the base 1 facing the sampling point.

[0022] The motor 15 on the base 1 is started, driving the lifting screw 14 to rotate. Because the lifting screw 14 is threadedly engaged with the lifting screw hole on the control top plate 2, and simultaneously guided by the limiting slide rod 13 and the limiting slide hole, the control top plate 2, along with the fixed cylinder 5, the fixed frustum 16 below it, and the locked sampling cylinder, moves smoothly and vertically downwards as a whole. The sampling cylinder passes through the sampling window 4 of the base 1 and gradually inserts into the target soil until the predetermined sampling depth is reached, completely containing the soil sample within the sampling cylinder.

[0023] After sampling is completed, motor 15 reverses and drives the lifting mechanism to rise, lifting the sampling tube fully loaded with soil samples out of the soil as a whole. When the sampling tube is completely detached from the soil and lifted to a suitable height, rotate knob 10 to make gear 8 rotate in the opposite direction. Gear 8 drives the racks 9 on both sides to move in the opposite direction, causing the locking block 6 to completely disengage from the locking hole 7 of the sampling shovel 3 and unlock. The two sampling shovels 3 lose their locking constraint, and the sampling tube is taken out from the fixed cylinder 5. The two sampling shovels 3 are separated from each other. Since the soil sample is wrapped inside the two semi-cylindrical sampling shovels 3, as the sampling shovels 3 are separated, the soil sample is naturally and completely exposed, or directly retained in the inner cavity of one of the sampling shovels 3.

[0024] This process completely avoids the traditional method of "pouring" or "knocking" the sample out of the container. The soil sample is supported by the sampling shovel throughout the entire transfer process, preserving its original structure and stratification to the greatest extent possible. This effectively solves the problems of sample scattering and structural damage, ensuring the integrity of the sample.

[0025] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0027] 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.

[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A sampling device for geological exploration, comprising a base (1), a control top plate (2) provided on the base (1), and a lifting support provided between the control top plate (2) and the base (1), characterized in that: The lower end of the control top plate (2) is fixedly connected to the fixed cylinder (5), and a sampling tube is slidably inserted inside the fixed cylinder (5). The base (1) is provided with a through sampling window (4) located directly below the sampling tube. The sampling tube is formed by connecting two sampling shovels (3) with a semi-circular cross section. The control top plate (2) is fixedly connected to a fixed truncated cone (16) at the center of the fixed cylinder (5). The fixed truncated cone (16) is provided with a control cavity (17). Movable insertion holes are provided on both sides of the fixed truncated cone (16). Fixed locking blocks (6) are slidably inserted into the movable insertion holes. Fixed locking holes (7) that cooperate with the fixed locking blocks (6) are provided on both sides of the sampling shovels (3). An adjustment mechanism that drives the fixed locking blocks (6) on both sides to slide relative to each other is provided in the control cavity (17).

2. A sampling device for geological exploration according to claim 1, characterized in that: The adjustment mechanism includes a gear (8) rotatably connected to the center of the control cavity (17), a knob (10) rotatably connected to the upper end of the control top plate (2) to drive the gear (8) to rotate, and a rack (9) that meshes with the gear (8) is fixedly connected to one end of the fixed locking block (6) extending into the control cavity (17), with the racks (9) on both sides arranged in a centrally symmetrical manner.

3. A sampling device for geological exploration according to claim 2, characterized in that: A slider (11) is fixedly connected to the upper end of the rack (9), and a groove that cooperates with the slider (11) is provided at the upper end of the control cavity (17). A fixing spring (12) is fixedly connected between the end of the groove near the gear (8) and the slider (11).

4. A sampling device for geological exploration according to claim 1, characterized in that: The two sampling shovels (3) are respectively provided with a limiting block and a limiting slot on their mating surfaces.

5. A sampling device for geological exploration according to claim 1, characterized in that: The lifting bracket includes a limiting slide rod (13) fixedly connected to the upper end of the base (1), a limiting slide hole that cooperates with the limiting slide rod (13) is provided on the control top plate (2), a lifting screw (14) is rotatably connected to the base (1), a lifting screw hole that cooperates with the lifting screw (14) is provided on the control top plate (2), and a motor (15) that drives the lifting screw (14) to rotate is fixedly connected to the base (1).

6. A sampling device for geological exploration according to claim 1, characterized in that, The inner wall of the sampling shovel (3) slides against the outer wall of the fixed truncated cone (16).

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