Sampling device for geological surveying and mapping

Abstract

The invention discloses a sampling device for geological surveying and mapping, which comprises an outer cylinder, an inner cylinder for switching the state of the sampling device is arranged in the outer cylinder, the inner cylinder is provided with a sampling assembly for storing a water sample, the outer cylinder is provided with a fixing assembly for fixing the height of the sampling assembly, the bottom end of the inner cylinder is provided with an activating part, and the activating part is provided with a water inlet and a water outlet. The inner cylinder can be driven to rotate through the activating piece; according to the invention, the activation part can automatically trigger the rotation of the inner cylinder after the sampling assembly is full of a water sample, so that automatic switching from a sampling state to a sample discharging state is realized, the state of the device can be changed without manual intervention and complicated operation, the working efficiency of sampling and sample discharging is greatly improved, and the working efficiency is greatly improved. Errors and time cost possibly caused by manual operation are reduced, the whole sampling and detecting process is more efficient and accurate, and the guiding grooves and the guiding strips are accurately matched.

Description

Technical Field

[0001] The invention relates to the technical field of sampling equipment, in particular to a sampling device for geological surveying and mapping. Background Art

[0002] Geological surveying and mapping is the general term for all surveying and mapping work involved in geological surveys and the preparation of their results maps. During geological surveys, sampling equipment is required to sample and analyze rocks, soil, water samples, and ores.

[0003] When existing geological surveying sampling devices are sampling groundwater, they often need to manually perform a series of complex operations when switching from the sampling state to the sampling state. For example, the operator needs to manually open or close the relevant valves, adjust the position of components, etc. to achieve state switching. This not only consumes a lot of time, but is also prone to errors due to the instability of manual operation. For example, when manually opening the sampling valve, uneven force or incorrect operation sequence may cause sampling time delays or water sample leakage. It is impossible to automatically trigger state switching like a device with an activation part, which greatly reduces the work efficiency of sampling and sampling, and increases the time cost of the entire detection process. Summary of the invention

[0004] The purpose of the present invention is to provide a sampling device for geological surveying and mapping in order to solve the problem that when the existing sampling device for geological surveying and mapping is switched from the sampling state to the sampling state, a series of complex operations often need to be performed manually, which greatly reduces the work efficiency of sampling and sampling and increases the time cost of the entire detection process.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A sampling device for geological surveying and mapping, comprising: an outer cylinder, an inner cylinder for switching the state of the sampling device is arranged inside the outer cylinder, a sampling assembly for storing water samples is arranged on the inner cylinder, a fixing assembly for fixing the height of the sampling assembly is arranged on the outer cylinder, an activating member is arranged at the bottom end of the inner cylinder, and the inner cylinder can be driven to rotate by the activating member;

[0006] The sampling assembly includes a sampling bottle arranged in an inner cylinder, a sample storage cavity is provided in the sampling bottle, a flow channel is connected through the top of the sample storage cavity, and one end of the flow channel passes through the sampling bottle, a fixing plate is fixedly connected in the flow channel, one end of the fixing plate is connected through an outer tube, an inner tube is slidably inserted in the outer tube, one end of the inner tube is fixedly connected to an inlet and outlet head, a pipeline is provided through the inlet and outlet head, one end of the inlet and outlet head is fixedly connected to a spring, one end of the spring is fixedly connected to the fixing plate, the other end of the fixing plate is fixedly connected to a limiting frame, a movable groove is provided on the inner wall of the limiting frame, a blocking plate is slidably connected in the movable groove, and magnets are embedded in the end face of the inner tube and one end of the blocking plate;

[0007] Among them, when the sample storage cavity is filled with samples, the sampling assembly moves downward due to gravity. During the downward movement, since the inlet / outlet head abuts against the inner cylinder and under the action of gravity, an external force acting inward is applied to the inlet / outlet head, causing the inlet / outlet head to retract into the flow channel. During the retraction process, the inlet / outlet head pushes the inner tube and inserts it into the outer tube. When the inner tube completely enters the outer tube, a magnet is embedded at one end of the end face of the inner tube and the plug plate to generate a magnetic suction force, thereby driving the plug plate to slide in the moving groove until the plug plate seals the outer tube, making the sample storage cavity in a sealed state.

[0008] As a further scheme of the present invention: the pipeline, the inner tube, the outer tube and the flow channel are connected. A receiving groove is opened at one end of the inlet / outlet head, and the receiving groove is adapted to the outer tube. A limiting groove is opened at the side end of the sampling bottle.

[0009] As a further scheme of the present invention: the fixing assembly includes a height groove opened at the top end of the outer cylinder. One end of the outer cylinder is fixedly connected with a locking platform, and an adjustment groove is opened on the locking platform and penetrates through the locking platform, the outer cylinder and the height groove.

[0010] As a further scheme of the present invention: the fixing assembly further includes an adjustment block slidably connected to the height groove. One end of the adjustment block is threadedly connected with a screw, and the screw penetrates through the adjustment groove and abuts against the locking platform. A limiting post is slidably inserted into the adjustment block. One end of the limiting post is fixedly connected with a connecting plate, and one end of the connecting plate is fixedly connected with a second spring. One end of the second spring is fixedly connected with the adjustment block, and the limiting post is adapted to the limiting groove.

[0011] As a further scheme of the present invention: the bottom end of the outer cylinder is fixedly connected with a connecting cylinder. A discharge groove is opened through the side end of the connecting cylinder. The bottom end of the connecting cylinder is fixedly connected with a discharge platform, and the bottom end of the discharge platform is fixedly connected with a suction cup.

[0012] As a further scheme of the present invention: a rotating groove is opened through the side end of the inner cylinder. The limiting post penetrates through the rotating groove and is inserted into the limiting groove, and the rotating groove is slidably connected with the limiting post. A feed hole is opened through the side end of the inner cylinder. The inlet / outlet head is adapted to the feed hole. A positioning groove is opened on the inner wall of the inner cylinder. The inlet / outlet head is adapted to the positioning groove. A support plate is fixedly connected to the top end inside the inner cylinder. A discharge hole is opened through the side end of the support plate, and the discharge hole is adapted to the inlet / outlet head. A placing seat is fixedly connected to the top end of the support plate, and a discharge hole is opened through the top end of the placing seat.

[0013] As a further scheme of the present invention: the activation member includes a first mounting frame fixedly connected to the inner wall of the outer cylinder. A rotating cylinder is connected through the first mounting frame, and a guiding groove is opened on the inner wall of the rotating cylinder.

[0014] As a further solution of the present invention: The activation member further includes a sliding groove formed on the inner wall of the inner cylinder. An installation frame II is slidably connected in the sliding groove. A rotating column is fixedly connected to the bottom end of the installation frame II. The rotating column is inserted into the rotating cylinder. A guiding strip is fixedly connected to the outer side of the rotating column. The guiding groove is adapted to the guiding strip. A plug rod is fixedly connected to the bottom end of the installation frame II. The plug rod is arranged in the sliding groove. One end of the plug rod penetrates through the inner cylinder and is fixedly connected to an installation plate. A third spring is sleeved on the outer side of the plug rod. One end of the third spring is fixedly connected to the installation plate, and the other end of the third spring is fixedly connected to the bottom end of the inner cylinder.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. In the present invention, through the sampling component, after the storage cavity is filled with samples, under the action of gravity, the inlet and outlet head is subjected to an inward external force and retracts into the flow channel, pushing the inner tube to insert into the outer tube. The magnet on the inner tube and the plug plate generate magnetic suction force, driving the plug plate to slide and seal the outer tube, making the storage cavity in a sealed state. This automatic sealing function can prevent water sample leakage and external impurities from entering, ensure the purity and stability of the sample, avoid sample contamination during subsequent operations, and improve the reliability of the detection results.

[0017] 2. In the present invention, through the adjusting block in the sliding and fixing component, the limiting column can drive the sampling component to move synchronously, so as to conveniently adjust the position of the sampling component. The operator can flexibly set the height of the sampling component according to actual needs to meet the requirements of sampling water samples at different depths. By tightly fitting the screw with the locking platform, the position of the adjusting block can be firmly fixed, and then the sampling component can be stably fixed, ensuring the stability and reliability of the sampling process. Through the limiting column and the limiting groove, both the effective fixation of the limiting column on the sampling component and the smooth release of the fixation of the sampling component when needed are ensured. At the same time, the rotating groove is slidably connected with the limiting column, which will not affect the rotation of the inner cylinder, ensuring the coordinated operation of all components of the entire device.

[0018] 3. In the present invention, through the activation member, after the sampling component is filled with water samples, the rotation of the inner cylinder can be automatically triggered, realizing the automatic switching from the sampling state to the sample discharging state. There is no need for manual intervention to perform complex operations to change the device state, greatly improving the working efficiency of sampling and sample discharging, reducing the errors and time costs that may be brought by manual operations, making the entire sampling and detection process more efficient and accurate. Through the precise cooperation of the guiding groove and the guiding strip, the third spring plays a buffering and resetting role during the movement process. This stable structural design ensures the stability and reliability of the entire activation process. Even after multiple uses, it can still maintain good working performance, extending the service life of the device and reducing the use cost. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of a sampling device for geological surveying and mapping according to the present invention;

[0020] Figure 2 It is a schematic diagram of the structure in the initial state of a sampling device for geological surveying and mapping according to the present invention;

[0021] Figure 3 It is a schematic diagram of the structure in the sampling state of a sampling device for geological surveying and mapping according to the present invention;

[0022] Figure 4 It is a schematic diagram of the structure in the sample discharging state of a sampling device for geological surveying and mapping according to the present invention;

[0023] Figure 5 It is a schematic diagram of the sampling state of the sampling assembly in a sampling device for geological surveying and mapping according to the present invention;

[0024] Figure 6 It is a schematic diagram of the closed state of the sampling assembly in a sampling device for geological surveying and mapping according to the present invention;

[0025] Figure 7 It is in a sampling device for geological surveying and mapping according to the present invention Figure 5 Schematic diagram of the structure at position A;

[0026] Figure 8 It is in a sampling device for geological surveying and mapping according to the present invention Figure 6 Schematic diagram of the structure at position B;

[0027] Figure 9 It is a schematic diagram of the fixing assembly in a sampling device for geological surveying and mapping according to the present invention;

[0028] Figure 10 It is a schematic diagram of the rotating cylinder in a sampling device for geological surveying and mapping according to the present invention;

[0029] Figure 11 It is a schematic diagram of the inner cylinder in a sampling device for geological surveying and mapping according to the present invention;

[0030] Figure 12 It is a schematic diagram of the rotating column in a sampling device for geological surveying and mapping according to the present invention.

[0031] In the figure: 1. Outer cylinder; 11. Connecting cylinder; 12. Discharge chute; 13. Discharge table; 14. Suction cup; 2. Inner cylinder; 21. Rotating groove; 22. Feed hole; 23. Positioning groove; 24. Support plate; 25. Discharge hole; 26. Placing seat; 27. Discharge hole; 3. Sampling assembly; 31. Sampling bottle; 32. Sample storage cavity; 33. Flow channel; 34. Fixed plate; 35. Outer tube; 36. Inner tube; 37. Inlet and outlet head; 38. Pipeline; 39. Receiving groove; 310. First spring; 311. Limit groove; 312. Limit frame; 313. Moving groove; 314. Plug plate; 4. Fixing assembly; 41. Adjusting block; 42. Screw; 43. Limit post; 44. Connecting plate; 45. Second spring; 46. Height groove; 47. Locking table; 48. Adjusting groove; 5. Activation part; 51. First mounting frame; 52. Rotating cylinder; 53. Guide groove; 54. Sliding groove; 55. Second mounting frame; 56. Rotating column; 57. Guide bar; 58. Insert rod; 59. Mounting plate; 510. Third spring. Detailed implementation manner

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", and "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The embodiments of the present invention will be described below according to the overall structure of the present invention.

[0034] Refer to Figures 1 to 8, in the embodiments of the present invention, a sampling device for geological surveying and mapping includes: an outer cylinder 1, an inner cylinder 2 for switching the state of the sampling device is arranged inside the outer cylinder 1, a sampling assembly 3 for storing water samples is arranged on the inner cylinder 2, a fixing assembly 4 for fixing the height of the sampling assembly 3 is arranged on the outer cylinder 1, and an activating member 5 is arranged at the bottom end of the inner cylinder 2. When the sampling assembly 3 is filled with samples, under the action of gravity, the sampling assembly 3 releases its connection with the fixing assembly 4 and drives the inner cylinder 2 to move downward, thereby activating the activating member 5 and causing the inner cylinder 2 to rotate;

[0035] The sampling assembly 3 includes a sampling bottle 31 arranged inside the inner cylinder 2. A limiting groove 311 is opened on the side end of the sampling bottle 31. The limiting groove 311 is annular and its cross-section is conical, and the inner wall of the limiting groove 311 is an arc surface. A sample storage cavity 32 is opened inside the sampling bottle 31. A flow channel 33 is connected through the top end of the sample storage cavity 32, and one end of the flow channel 33 penetrates through the sampling bottle 31. The flow channel 33 is J-shaped. The connection surface between the sample storage cavity 32 and the flow channel 33 is a conical surface. A fixing plate 34 is fixedly connected inside the flow channel 33. One end of the fixing plate 34 is connected through an outer tube 35. An inner tube 36 is slidably inserted inside the outer tube 35. The length of the outer tube 35 is greater than the length of the inner tube 36. One end of the inner tube 36 is fixedly connected with an inlet and outlet head 37. The inlet and outlet head 37 is conical and its side surface is an arc surface. A pipeline 38 is opened through the inlet and outlet head 37. The pipeline 38, the inner tube 36, the outer tube 35 and the flow channel 33 are communicated. A receiving groove 39 is opened at one end of the inlet and outlet head 37. The receiving groove 39 is adapted to the outer tube 35 so that the inner tube 36 can be inserted to the bottom end of the outer tube 35. One end of the inlet and outlet head 37 is fixedly connected with a first spring 310. One end of the first spring 310 is fixedly connected with the fixing plate 34. Multiple groups of the first spring 310 are arranged and evenly distributed between the inlet and outlet head 37 and the fixing plate 34. The other end of the fixing plate 34 is fixedly connected with a limiting frame 312. The limiting frame 312 is composed of a group of circular plates and four groups of arc-shaped straight plates. A moving groove 313 is opened on the inner wall of the arc-shaped straight plate in the limiting frame 312. A blocking plate 314 is slidably connected inside the moving groove 313. A magnet is embedded at the end face of the inner tube 36 and one end of the blocking plate 314. The corresponding surfaces of the two magnets are of opposite polarities;

[0036] Among them, when the sample storage cavity 32 is filled with samples, the sampling assembly 3 moves downward due to gravity. During the downward movement, since the inlet and outlet head 37 abuts against the inner cylinder 2 and under the action of gravity, an inward external force is applied to the inlet and outlet head 37, so that the inlet and outlet head 37 retracts into the flow channel 33. During the retraction process, the inlet and outlet head 37 pushes the inner tube 36 to insert into the outer tube 35. When the inner tube 36 completely enters the outer tube 35, the outer tube 35 is inserted into the receiving groove 39. At this time, the bottom ends of the outer tube 35 and the inner tube 36 are flush. A magnet is embedded at the end face of the inner tube 36 and one end of the blocking plate 314 to generate magnetic suction, thereby driving the blocking plate 314 to slide inside the moving groove 313 until the blocking plate 314 blocks the outer tube 35, making the sample storage cavity 32 in a sealed state.

[0037] Reference Figure 9 As shown in Figure 9 , the fixing component 4 includes height grooves 46 opened at the top end of the outer cylinder 1. There are two groups of height grooves 46, symmetrically distributed at the top end of the outer cylinder 1. One end of the outer cylinder 1 is fixedly connected with a locking platform 47. There are four groups of locking platforms 47, symmetrically distributed at the side end of the outer cylinder 1. An adjustment groove 48 is opened on each group of locking platforms 47, and the adjustment groove 48 penetrates through the locking platform 47, the outer cylinder 1 and the height groove 46. The fixing component 4 further includes an adjustment block 41 slidably connected with the height groove 46. There are two groups of adjustment blocks 41, symmetrically distributed in the two groups of height grooves 46. The adjustment block 41 is convex-shaped. One screw 42 is threadedly connected to each end of each group of adjustment blocks 41, and each group of screws 42 penetrates through the adjustment groove 48. The screw 42 abuts against the locking platform 47. A limiting post 43 is slidably inserted into the adjustment block 41. The tip of the limiting post 43 is conical, and the side surface of the tip is arc-shaped. One end of the limiting post 43 is fixedly connected with a connecting plate 44. The limiting post 43 and the connecting plate 44 are distributed in a T-shape. One end of the connecting plate 44 is fixedly connected with a second spring 45. One end of the second spring 45 is fixedly connected with the adjustment block 41. There are four groups of second springs 45, symmetrically distributed on both sides of the two groups of limiting posts 43 respectively. The limiting post 43 is adapted to the limiting groove 311. First, insert the adjustment block 41 into the height groove 46 at the top end of the outer cylinder 1, and then make the tip of the limiting post 43 penetrate through the rotation groove 21 at the side end of the inner cylinder 2 and insert it into the limiting groove 311 at the side end of the sampling bottle 31 in the sampling component 3. Since the limiting post 43 is slidably connected with the adjustment block 41, by sliding the adjustment block 41 to move in the height groove 46, the limiting post 43 will drive the sampling component 3 to move synchronously, so as to realize the adjustment of the position of the sampling component 3. When the sampling component 3 is adjusted to the appropriate height, insert the screw 42 into the adjustment groove 48. The adjustment groove 48 penetrates through the locking platform 47, the outer cylinder 1 and the height groove 46. The screw 42 is threadedly connected with the adjustment block 41. As the screw 42 is screwed in, until the screw 42 is closely attached to the locking platform 47, at this time, the position of the adjustment block 41 is fixed, and then the current positions of the limiting post 43 and the sampling component 3 are fixed.

[0038] With the above scheme: the height of the sampling component 3 can be conveniently adjusted through the fixing component 4. By sliding the position of the adjustment block 41 in the height groove 46, multiple sampling components 3 can be installed at different heights, so that the water samples at different heights in the water sample storage tank can be sampled, thereby obtaining more comprehensive water sample information and improving the accuracy and representativeness of the detection results. By using the close fit between the screw 42 and the locking platform 47, the position of the adjustment block 41 can be firmly fixed, and then the sampling component 3 can be stably fixed. During the working process of the device, even if affected by external forces such as the flow of water samples, the sampling component 3 will not easily move in position, ensuring the stability and reliability of the sampling process.

[0039] Reference Figure 10, a connecting cylinder 11 is fixedly connected to the bottom end of the outer cylinder 1. A discharge slot 12 is penetratingly opened on the side end of the connecting cylinder 11. Four groups of discharge slots 12 are provided and symmetrically distributed on the side end of the connecting cylinder 11. A discharge table 13 is fixedly connected to the bottom end of the connecting cylinder 11. The discharge table 13 is a conical table, and a suction cup 14 is fixedly connected to the bottom end of the discharge table 13.

[0040] Adopting the above solution: By fixing the device in the water sample storage tank through the suction cup 14, the influence of external forces such as the flow of the water sample can be effectively resisted, ensuring the stability of the device during the sampling process. This enables the sampling assembly 3 to accurately sample at the set height, avoiding inaccurate sampling positions caused by the shaking of the device, thereby improving the accuracy and reliability of sampling. The outer cylinder 1 provides a relatively enclosed space for the inner cylinder 2 and the sampling assembly 3, which can prevent external impurities, dust, etc. from entering the device interior, protecting the internal components, and at the same time, reducing the interference of the external environment on the water sample sampling process, ensuring the purity of the sample and the accuracy of the test results.

[0041] Refer to Figure 11 , a rotating slot 21 is penetratingly opened on the side end of the inner cylinder 2. Multiple groups of rotating slots 21 are provided and symmetrically distributed on the side end of the inner cylinder 2. The rotating slot 21 is a quarter arc. The limiting post 43 penetrates through the rotating slot 21 and is inserted into the limiting slot 311, and the rotating slot 21 is slidably connected to the limiting post 43. A feed hole 22 is penetratingly opened on the side end of the inner cylinder 2. Multiple groups of feed holes 22 are provided and evenly distributed on the side end of the inner cylinder 2. The inner wall of the feed hole 22 is an arc surface, and the inlet and outlet head 37 is adapted to the feed hole 22. A positioning slot 23 is opened on the inner wall of the inner cylinder 2. Four groups of positioning slots 23 are provided and symmetrically distributed on the inner wall of the inner cylinder 2. The inlet and outlet head 37 is adapted to the positioning slot 23. A support plate 24 is fixedly connected to the top end of the inner cylinder 2. Two groups of support plates 24 are provided and symmetrically distributed on the top end of the inner cylinder 2. A discharge hole 25 is penetratingly opened on the side end of one group of support plates 24. The inner wall of the discharge hole 25 is an arc surface. The discharge hole 25 is adapted to the inlet and outlet head 37, and the discharge hole 25 and the feed hole 22 are distributed at a ninety-degree angle. A placement seat 26 is fixedly connected to the top end of the support plate 24. A discharge hole 27 is penetratingly opened on the top end of the placement seat 26. Four groups of discharge holes 27 are provided and symmetrically distributed on the top end of the placement seat 26.

[0042] Adopting the above solution: The inner cylinder 2 provides a relatively enclosed and stable working space for the sampling assembly 3, which can effectively protect the sampling assembly 3 from the influence of external impurities, dust, and other interference factors, extending the service life of the assembly. At the same time, the structures such as the feed hole 22, discharge hole 25, positioning slot 23, and rotating slot 21 on the inner cylinder 2 can accurately guide the movement and positioning of the inlet and outlet head 37, ensuring the smooth progress of the sampling and discharging processes, and improving the overall stability and accuracy of the device.

[0043] Refer to Figures 10 to 12, the activation member 5 includes a first mounting bracket 51 fixedly connected to the inner wall of the outer cylinder 1. The first mounting bracket 51 is cross-shaped. A rotating cylinder 52 is connected through the first mounting bracket 51. A guiding groove 53 is formed in the inner wall of the rotating cylinder 52. There are four groups of guiding grooves 53, symmetrically distributed on the inner wall of the rotating cylinder 52, and the guiding groove 53 is spiral. The activation member 5 further includes a sliding groove 54 formed in the inner wall of the inner cylinder 2. There are four groups of sliding grooves 54, symmetrically distributed on the inner wall of the inner cylinder 2. A second mounting bracket 55 is slidably connected in the sliding groove 54. The second mounting bracket 55 is cross-shaped. A rotating column 56 is fixedly connected to the bottom end of the second mounting bracket 55. The rotating column 56 is inserted into the rotating cylinder 52. A guiding strip 57 is fixedly connected to the outer side of the rotating column 56. There are four groups of guiding strips 57, symmetrically distributed on the outer side of the rotating column 56, and the guiding strip 57 is spiral. The guiding groove 53 is adapted to the guiding strip 57. Under the guidance of the guiding groove 53 and the guiding strip 57, the inner cylinder 2 rotates by ninety degrees. A plug rod 58 is fixedly connected to the bottom end of the second mounting bracket 55. There are four groups of plug rods 58. One plug rod 58 is provided in each sliding groove 54. One end of each group of plug rods 58 penetrates through the inner cylinder 2 and is fixedly connected to a mounting plate 59. A third spring 510 is sleeved on the outer side of the plug rod 58. One end of the third spring 510 is fixedly connected to the mounting plate 59, and the other end of the third spring 510 is fixedly connected to the bottom end of the inner cylinder 2. When the sampling assembly 3 in the inner cylinder 2 works, multiple sampling assemblies 3 are installed at different heights to sample the water sample. As the sampling progresses, the storage cavity 32 of the sampling assembly 3 gradually fills with the water sample, and the weight of the sampling assembly 3 increases. When the sampling bottle 31 in the lowermost group of sampling assemblies 3 is full, it disconnects from the fixing assembly 4 under the action of gravity and moves towards the bottom end inside the inner cylinder 2, falling onto the second mounting bracket 55. Subsequently, the sampling bottles 31 in the other groups of sampling assemblies 3 are stacked on it in sequence, so that the second mounting bracket 55 is subjected to a downward pressure. After the second mounting bracket 55 is subjected to the pressure, it pushes the plug rod 58 to move downward. The third spring 510 sleeved on the outer side of the plug rod 58 is stretched under force. At the same time, the second mounting bracket 55 drives the rotating column 56 to move downward and insert into the rotating cylinder 52. Since the guiding strip 57 on the outer side of the rotating column 56 is adapted to the guiding groove 53 on the inner wall of the rotating cylinder 52, and both the guiding groove 53 and the guiding strip 57 are spiral, under the guidance of the guiding groove 53 and the guiding strip 57, the downward movement of the rotating column 56 will cause the inner cylinder 2 to rotate, and finally the inner cylinder 2 rotates by ninety degrees. This rotation action makes the tip of the inlet and outlet head 37 and the discharge hole 25 in the same vertical plane, preparing for the subsequent sample discharging operation. When the device completes operations such as sample discharging, if it is to be used again, the third spring 510 will return to its original state under its own elastic action, driving components such as the second mounting bracket 55 and the rotating column 56 to reset, so that the activation member 5 returns to the initial state, waiting for the next sampling and state switching process.

[0044] Adopting the above solution: After the sampling component 3 is filled with water samples, the activation member 5 can automatically trigger the rotation of the inner cylinder 2, realizing the automatic switching from the sampling state to the sample discharging state, without manual intervention to perform complex operations to change the device state, greatly improving the working efficiency of sampling and sample discharging, reducing the errors and time costs that may be brought by manual operations. Through the precise cooperation of the guiding groove 53 and the guiding strip 57, it can ensure that the inner cylinder 2 rotates exactly 90 degrees, making the tip of the inlet and outlet head 37 accurately aligned with the discharge hole 25. In this way, when discharging the sample, the water sample can smoothly discharge from the sample storage cavity 32, ensuring the accuracy and smoothness of the sample discharging process and improving the reliability of sample detection. The various components of the activation member 5 are tightly connected and precisely matched. The first mounting frame 51 and the second mounting frame 55 provide a stable support structure for the rotating cylinder 52 and the rotating column 56. The third spring 510 plays a role of buffering and resetting during the movement process, ensuring the stability and reliability of the entire activation process. Even after multiple uses, it can still maintain good working performance, extending the service life of the device.

[0045] The working principle of the present invention is as follows: When in use, first place a set of sampling components 3 into the inner cylinder 2 through the gap between the two sets of support plates 24, and align the tip of the inlet and outlet head 37 with a set of positioning grooves 23 on the inner wall of the inner cylinder 2, such that the tip of the inlet and outlet head 37 is distributed at a 90-degree angle with respect to the feed hole 22, and the tip of the inlet and outlet head 37 is distributed at a 180-degree angle with respect to the discharge hole 25. Subsequently, press down on the sampling component 3, so that the arc surface of the inlet and outlet head 37 abuts against the inner wall of the inner cylinder 2. Under the acting force of the abutment, the inlet and outlet head 37 retracts into the flow channel 33. During the retraction process, the inlet and outlet head 37 pushes the inner tube 36 and inserts it into the outer tube 35. When the inner tube 36 completely enters the outer tube 35, the outer tube 35 is inserted into the receiving groove 39. At this time, the bottoms of the outer tube 35 and the inner tube 36 are flush, and a magnet is embedded at one end of the end face of the inner tube 36 and the plug plate 314 to generate a magnetic suction force, thereby driving the plug plate 314 to slide in the moving groove 313 until the plug plate 314 seals the outer tube 35, making the sample storage cavity 32 in a sealed state. At this time, since the inlet and outlet head 37 completely enters the flow channel 33, the sampling component 3 can smoothly enter the inner cylinder 2. Then insert the adjusting block 41 into the height groove 46, and make the tip of the limit post 43 penetrate the rotation groove 21 and insert it into the limit groove 311. Then, by sliding the adjusting block 41 to move in the height groove 46, the limit post 43 drives the sampling component 3 to move synchronously to adjust the position of the sampling component 3. Then insert the screw 42 into the adjusting groove 48, and thread the screw 42 with the adjusting block 41 until the screw 42 is precisely fitted with the locking platform 47 to fix the current position of the sampling component 3. At this time, the installation of a set of sampling components 3 is completed, and multiple sets of sampling components 3 are sequentially installed and fixed in the inner cylinder 2 according to the same steps, so that multiple sets of sampling components 3 are installed at different heights to sample water samples at different heights. After that, place the entire device completely into the water sample storage box, and connect the outer cylinder 1 with the water sample storage box through the suction cup 14, so that the water sample submerges the outer cylinder 1. Then rotate the placement seat 26 to rotate the inner cylinder 2 by 90 degrees, so that the feed hole 22 is aligned with the inlet and outlet head 37. At this time, the inlet and outlet head 37 is no longer restricted, and the first spring 310 pushes the inlet and outlet head 37, so that the tip of the inlet and outlet head 37 penetrates the feed hole 22. At this time, the water sample sequentially enters the sample storage cavity 32 through the pipeline 38, the inner tube 36, the outer tube 35, and the flow channel 33. When the sample storage cavity 32 is filled with liquid, the weight of the sampling component 3 increases, increasing the abutting force between the limit groove 311 and the tip of the limit post 43. Under the action of the arc surface of the limit groove 311 and the tip of the limit post 43, the limit post 43 is pushed outwards until the limit post 43 completely exits the limit groove 311, thereby releasing the restriction of the fixing component 4 on the sampling component 3, and making the sampling component 3 move towards the inner bottom end of the inner cylinder 2 under the action of gravity. During the downward movement, the inlet and outlet head 37 abuts against the feed hole 22, and under the action of the arc surface of the inlet and outlet head 37 and the feed hole 22, the inlet and outlet head 37 is forced to retract into the flow channel 33. During the retraction process, the inlet and outlet head 37 pushes the inner tube 36 and inserts it into the outer tube 35. When the inner tube 36 completely enters the outer tube 35,The outer tube 35 is inserted into the receiving groove 39. At this time, the bottom ends of the outer tube 35 and the inner tube 36 are flush. A magnet is embedded at one end of the end face of the inner tube 36 and the plug plate 314 to generate a magnetic suction force, thereby driving the plug plate 314 to slide in the moving groove 313 until the plug plate 314 seals the outer tube 35, making the sample storage cavity 32 in a sealed state. When the sampling bottle 31 in the lowermost group of sampling assemblies 3 falls onto the second mounting frame 55, the sampling bottles 31 in the remaining several groups of sampling assemblies 3 are stacked in sequence, causing the second mounting frame 55 to receive a downward pressure, pushing the insertion rod 58 downward and stretching the third spring 510. At the same time, the second mounting frame 55 drives the rotating column 56 to move downward and insert into the rotating cylinder 52. Under the guidance of the guiding groove 53 and the guiding strip 57, the inner cylinder 2 and the sampling assemblies 3 therein rotate by ninety degrees, making the tip of the access head 37 and the discharge hole 25 in the same vertical plane. Then, the entire device is taken out of the water sample storage tank and inverted. During the inversion process, several groups of sampling assemblies 3 will move towards the placement seat 26. When one group of sampling assemblies 3 abuts against the placement seat 26, the tip of the access head 37 aligns with the discharge hole 25. At this time, the access head 37 is no longer restricted, and the first spring 310 pushes the access head 37, causing the tip of the access head 37 to penetrate through the discharge hole 25. At this time, under the guidance of the conical surface of the sample storage cavity 32, the water sample sequentially passes through the flow channel 33, the outer tube 35, the inner tube 36, and the pipeline 38, and is discharged from the sample storage cavity 32, enabling the operator to inspect the sample. When the liquid in this group of sampling assemblies 3 is completely discharged, the sampling assemblies 3 are pushed to be discharged from the gap between the two support plates 24, and the next group of sampling assemblies 3 abuts against the placement seat 26 for sample discharge; through the fixing assembly 4, multiple sampling assemblies 3 can be installed at different heights, enabling the sampling assemblies 3 to sample water samples at different heights in the water sample storage tank. The water sample components at different heights may vary. In this way, more comprehensive water sample information can be obtained, improving the accuracy and representativeness of the detection results. When the sample storage cavity 32 is filled with samples, under the action of gravity, the access head 37 receives an inward external force and retracts into the flow channel 33, pushing the inner tube 36 to insert into the outer tube 35. The magnet on the inner tube 36 and the plug plate 314 generates a magnetic suction force, driving the plug plate 314 to slide and seal the outer tube 35, making the sample storage cavity 32 in a sealed state. This automatic sealing function can prevent water sample leakage and entry of external impurities, ensuring the purity and stability of the sample, avoiding contamination of the sample during subsequent operations, and improving the reliability of the detection results. By sliding the adjusting block 41 in the fixing assembly 4, the limiting column 43 can drive the sampling assemblies 3 to move synchronously, thereby conveniently adjusting the position of the sampling assemblies 3. The operator can flexibly set the height of the sampling assemblies 3 according to actual needs to meet the requirements for sampling water samples at different depths. By using the screw 42 to closely fit with the locking platform 47, the position of the adjusting block 41 can be firmly fixed, and then the sampling assemblies 3 can be stably fixed. During the operation of the device, even under the influence of external forces such as water sample flow, the sampling assemblies 3 will not easily move in position.It ensures the stability and reliability of the sampling process, guarantees the accuracy of the sampling position, improves the credibility of the detection results. The limit post 43 is adapted to the limit groove 311 and can penetrate through the rotation groove 21 to be inserted into the limit groove 311. This design not only ensures the effective fixation of the sampling assembly 3 by the limit post 43 but also enables the sampling assembly 3 to be smoothly released from fixation when needed. At the same time, the rotation groove 21 is slidably connected to the limit post 43 without affecting the rotation of the inner cylinder 2, ensuring the coordinated operation of all components of the entire device. Through the activation member 5, after the sampling assembly 3 is filled with water samples, it can automatically trigger the rotation of the inner cylinder 2 to realize the automatic switching from the sampling state to the sample discharge state, without the need for manual intervention to perform complex operations to change the device state, greatly improving the working efficiency of sampling and sample discharge, reducing the errors and time costs that may be brought by manual operations, and making the entire sampling and detection process more efficient and accurate. Through the precise cooperation of the guide groove 53 and the guide bar 57, it can ensure that the inner cylinder 2 rotates exactly 90 degrees, making the tip of the inlet and outlet head 37 accurately aligned with the discharge hole 25. In this way, during sample discharge, the water sample can smoothly discharge from the sample storage cavity 32, ensuring the accuracy and smoothness of the sample discharge process, improving the reliability of sample detection, and avoiding sample loss and detection errors caused by unsmooth sample discharge or inaccurate position. The various components of the activation member 5 are tightly connected and precisely matched. The first mounting frame 51 and the second mounting frame 55 provide a stable support structure for the rotating cylinder 52 and the rotating column 56. The third spring 510 plays a buffering and resetting role during the movement process. This stable structural design ensures the stability and reliability of the entire activation process. Even after multiple uses, it can still maintain good working performance, extending the service life of the device and reducing the usage cost.

[0046] The above-mentioned is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A sampling device for geological surveying and mapping, comprising: The outer cylinder (1) is characterized in that an inner cylinder (2) for switching the state of a sampling device is arranged inside the outer cylinder (1), the inner cylinder (2) is provided with a sampling assembly (3) for storing water samples, the outer cylinder (1) is provided with a fixing assembly (4) for fixing the height of the sampling assembly (3), and an activation member (5) is arranged at the bottom end of the inner cylinder (2), and the inner cylinder (2) can be driven to rotate by the activation member (5); The sampling assembly (3) comprises a sampling bottle (31) arranged in the inner cylinder (2), a sample storage cavity (32) is provided in the sampling bottle (31), a flow channel (33) is connected through the top of the sample storage cavity (32), and one end of the flow channel (33) passes through the sampling bottle (31), a fixing plate (34) is fixedly connected in the flow channel (33), one end of the fixing plate (34) is connected through an outer tube (35), an inner tube (36) is slidably inserted in the outer tube (35), and one end of the inner tube (36) is fixedly connected to an inlet and outlet A head (37), a pipe (38) is provided in the inlet and outlet head (37), one end of the inlet and outlet head (37) is fixedly connected to a spring (310), one end of the spring (310) is fixedly connected to a fixed plate (34), the other end of the fixed plate (34) is fixedly connected to a limit frame (312), a movable groove (313) is provided on the inner wall of the limit frame (312), a blocking plate (314) is slidably connected in the movable groove (313), and a magnet is embedded in the end surface of the inner tube (36) and one end of the blocking plate (314); When the sample storage cavity (32) is filled with samples, the sampling assembly (3) moves downward due to gravity. During the downward movement, the inlet and outlet head (37) abuts against the inner tube (2) and, under the action of gravity, the inlet and outlet head (37) is subjected to an inward external force, thereby retracting the inlet and outlet head (37) into the flow channel (33). During the retraction process, the inlet and outlet head (37) pushes the inner tube (36) and inserts it into the outer tube (35). When the inner tube (36) completely enters the outer tube (35), a magnet is embedded in the end face of the inner tube (36) and one end of the blocking plate (314) to generate magnetic attraction, thereby driving the blocking plate (314) to slide in the movable groove (313) until the blocking plate (314) blocks the outer tube (35), so that the sample storage cavity (32) is in a closed state.

2. A sampling device for geological surveying and mapping according to claim 1, characterized in that: The pipeline (38), the inner tube (36), the outer tube (35) and the flow channel (33) are connected, one end of the inlet and outlet head (37) is provided with a receiving groove (39), the receiving groove (39) is adapted to the outer tube (35), and a limiting groove (311) is provided at the side end of the sampling bottle (31).

3. A sampling device for geological surveying and mapping according to claim 2, characterized in that: The fixing assembly (4) comprises a height slot (46) formed at the top end of the outer cylinder (1); one end of the outer cylinder (1) is fixedly connected to a locking platform (47); an adjustment slot (48) is formed on the locking platform (47); and the adjustment slot (48) passes through the locking platform (47), the outer cylinder (1) and the height slot (46).

4. A sampling device for geological surveying and mapping according to claim 3, characterized in that: The fixing assembly (4) further comprises an adjusting block (41) slidably connected to the height slot (46); one end of the adjusting block (41) is threadedly connected to a screw (42), and the screw (42) passes through the adjusting slot (48), and the screw (42) abuts against a locking platform (47); a limiting column (43) is slidably inserted on the adjusting block (41); one end of the limiting column (43) is fixedly connected to a connecting plate (44), and one end of the connecting plate (44) is fixedly connected to a second spring (45), and one end of the second spring (45) is fixedly connected to the adjusting block (41); and the limiting column (43) is adapted to the limiting slot (311).

5. A sampling device for geological surveying and mapping according to claim 4, characterized in that: The bottom end of the outer cylinder (1) is fixedly connected to a connecting cylinder (11), a side end of the connecting cylinder (11) is provided with a discharge groove (12), the bottom end of the connecting cylinder (11) is fixedly connected to a discharge platform (13), and the bottom end of the discharge platform (13) is fixedly connected to a suction cup (14).

6. A sampling device for geological surveying and mapping according to claim 5, characterized in that: The side end of the inner cylinder (2) is provided with a rotation groove (21), the limiting column (43) penetrates the rotation groove (21) and is plugged into the limiting column (311), and the rotation groove (21) and the limiting column (43) are slidably connected, the side end of the inner cylinder (2) is provided with a feed hole (22), the inlet and outlet head (37) is matched with the feed hole (22), the inner wall of the inner cylinder (2) is provided with a positioning groove (23), the inlet and outlet head (37) is matched with the positioning groove (23), the top end of the inner cylinder (2) is fixedly connected with a support plate (24), the side end of the support plate (24) is provided with a discharge hole (25), the discharge hole (25) is matched with the inlet and outlet head (37), the top end of the support plate (24) is fixedly connected with a placement seat (26), and the top end of the placement seat (26) is provided with a discharge hole (27).

7. A sampling device for geological surveying and mapping according to claim 6, characterized in that: The activation member (5) comprises a mounting frame (51) fixedly connected to the inner wall of the outer cylinder (1), a rotating cylinder (52) is connected through the mounting frame (51), and a guide groove (53) is provided on the inner wall of the rotating cylinder (52).

8. A sampling device for geological surveying and mapping according to claim 7, characterized in that: The activation member (5) further comprises a sliding groove (54) provided on the inner wall of the inner tube (2), wherein a second mounting frame (55) is slidably connected in the sliding groove (54), a rotating column (56) is fixedly connected to the bottom end of the second mounting frame (55), the rotating column (56) is plugged into the rotating tube (52), a guide bar (57) is fixedly connected to the outer side of the rotating column (56), the guide groove (53) is adapted to the guide bar (57), an insertion rod (58) is fixedly connected to the bottom end of the second mounting frame (55), the insertion rod (58) is arranged in the sliding groove (54), one end of the insertion rod (58) passes through the inner tube (2) and is fixedly connected to a mounting plate (59), a spring three (510) is sleeved on the outer side of the insertion rod (58), one end of the spring three (510) is fixedly connected to the mounting plate (59), and the other end of the spring three (510) is fixedly connected to the bottom end of the inner tube (2).

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