Multifunctional sampling equipment and sampling method for geological exploration

Abstract

The present application relates to the technical field of geological prospecting sampling, and in particular to a multifunctional sampling device and sampling method for geological prospecting, comprising a floating block in a cylindrical structure, wherein a sampling mechanism for sampling water bodies is arranged at the bottom of the floating block, wherein in the sampling mechanism designed by the present invention, mutually spliced ​​sampling tubes cooperate with each other to uniformly sample and process water bodies at different depths, thereby reducing the tediousness of sampling only a single water layer in each sampling process and improving the sampling efficiency, and at the same time, the sampling tube and the liquid inlet cooperate with each other to sample water bodies in the same water layer but at different distances from the sampling tube (i.e., different positions in the same water layer), thereby making the collected water body data more representative.

Description

Technical Field

[0001] The present application relates to the technical field of geological prospecting sampling, and in particular to a multifunctional sampling device and a sampling method for geological prospecting. Background Art

[0002] Geological exploration can be broadly understood as geological work. It is an investigation and research work on the geological conditions such as rocks, stratigraphic structures, minerals, water bodies, landforms, etc. in a certain area by using geological exploration methods such as surveying and mapping, geophysical exploration, geochemical prospecting, drilling, pit exploration, sampling testing, and geological remote sensing based on the needs of economic construction, national defense construction, and scientific and technological development.

[0003] In the process of water body monitoring, water body sampling (sampling) is usually used to survey the water body. For example, the patent application with publication number CN218157093U discloses a multifunctional sampling device for environmental monitoring, which relates to the field of water quality sampling, including a sampling cylinder with an opening at the top, a connecting block and a connecting rod and a sealing gasket arranged at the connecting block above and below are arranged on the inner side of the sampling cylinder, a measuring rope is arranged above the sampling cylinder, a stretching rope is arranged above the connecting rod, a supporting cylinder and a sealing assembly for sealing are arranged on the outer side of the sampling cylinder, and a connecting assembly connected to the sealing assembly and the connecting block is arranged on the inner side of the sampling cylinder. The prior art places the sampling cylinder in different water layers through the cooperation of the cylinder and the measuring rope, and drives the connecting block to rise by the stretching rope. At the same time, the sealing gasket generates negative pressure at the bottom of the sampling cylinder to suck water into the inner side of the sampling cylinder, so that the sampling device can sample the water quality of different water layers, so that the sampling of water quality is more comprehensive, thereby making the inspection of water quality more accurate.

[0004] Although the above patent application can sample water quality in different water layers, the following problems still exist: 1. The above patent application can only sample and process water from a certain water layer during one launching process. When sampling water from different water layers is required, multiple launching processes are required, and the sampling equipment needs to be cleaned before each launching to avoid mutual contamination of water from different water layers, affecting the accuracy of experimental data, resulting in extended sampling time and affecting the progress of water sampling.

[0005] 2. The above patent application can only sample the water body near the sampling tube during sampling, and cannot sample the water body in the same layer far away from the sampling tube, so the sampling results are not representative.

[0006] 3. When there are waves on the sampling water surface, the sampling tube will shake or even overturn during use. The shaking sampling tube may mix water from different water layers during the sampling process, affecting the sampling effect of the water body.

[0007] Based on this, and in accordance with the above-mentioned viewpoints, there is still room for improvement in the existing technology for water sampling. Summary of the invention

[0008] In order to solve the above technical problems, the present application provides a multifunctional sampling device and sampling method for geological exploration, which adopts the following technical solutions:

[0009] In a first aspect, a multifunctional sampling device for geological exploration includes a floating block in a cylindrical structure, wherein a sampling mechanism for sampling water is disposed at the bottom of the floating block.

[0010] The sampling mechanism comprises: a plurality of sampling tubes are evenly arranged along the height direction of the floating block, and adjacent sampling tubes are connected to each other in a detachable manner.

[0011] Two limiting rods are provided and symmetrically penetrate the floating block to provide limiting support for the sampling tube. A limiting block matching the limiting rod is provided on the side wall of each sampling tube.

[0012] The sampling tube is symmetrically arranged on the sampling barrel and is connected with the corresponding sampling barrel. The plane formed by the axes of the sampling tube is perpendicular to the plane formed by the axes of the limiting rods. The sampling tube is evenly provided with a plurality of liquid inlet holes along its length.

[0013] Preferably, a connecting block is installed on the top of the sampling cylinder through a bearing, and the connecting block is connected to the bottom of an adjacent sampling cylinder by a threaded connection. A piston is arranged inside the sampling cylinder along its length direction, and a traction rod is installed on the piston to pull it to move along the inner wall of the sampling cylinder, and the traction rod passes through the corresponding connecting block. The side wall of the sampling cylinder is also provided with a liquid outlet that passes through the interior of the sampling cylinder, and an annular plate that cooperates with the liquid outlet is rotatably arranged on the inner wall of the sampling cylinder.

[0014] Preferably, the limit rod passes through the limit block, a through groove is provided inside the limit rod, and a fixing component corresponding to the limit block is installed inside the through groove, and the fixing component includes: a fixing plate, which is installed on the inner wall of the through groove and cooperates with the limit block one by one.

[0015] A plurality of arc-shaped rods are provided and are evenly installed on the fixed plate in the circumferential direction, and a movable circular plate which is slidably matched with the inner wall of the through groove is commonly installed on the arc-shaped rods corresponding to each fixed plate.

[0016] The limiting rod is evenly provided with a plurality of through slots corresponding to the fixing plate along its length direction, and each through slot matches with the arc rod on the corresponding fixing plate, and the limiting block is also provided with an annular groove matching with each arc rod.

[0017] Preferably, a linkage rod extending along the length direction is arranged inside the through groove, and the linkage rod passes through the movable circular plate and is connected to the movable circular plate by a threaded connection, and the top end of the linkage rod is installed on the top of the limit rod through a bearing.

[0018] Preferably, the sampling barrel is also equipped with an opening and closing assembly that cooperates with the sampling tube, and the opening and closing assembly includes: an inclined strip, which is arranged on the outer wall of the sampling barrel and cooperates with the sampling tube to seal the liquid inlet hole.

[0019] The connecting protrusions are symmetrically arranged on both sides of the inclined strip, and the sampling tube is installed between the corresponding connecting protrusions through a hinge shaft. A soft tube is installed at one end of the sampling tube close to the sampling barrel, and the end of the soft tube away from the sampling tube is connected with the sampling barrel.

[0020] Preferably, the limit rod is installed on the floating block through a bearing, an annular groove corresponding to the sampling tube is opened on the limit rod, a traction rope is arranged inside the annular groove, and a connecting ring matching the traction rope is installed on the sampling tube.

[0021] Preferably, the bottom of the piston is connected to the top of the adjacent traction rod by a threaded connection.

[0022] Preferably, the annular plate is provided with connecting hole 1 and connecting hole 2 which cooperate with the soft tube, and the annular plate is also provided with a connecting groove which cooperates with the liquid outlet. A connecting plate which cooperates with the piston is installed at the bottom of the annular plate, a telescopic rod is installed at the bottom of the piston, and the telescopic end of the telescopic rod is installed on the corresponding connecting plate.

[0023] Preferably, the traction rod near the floating block passes through the floating block, and a reference line is arranged on the traction rod passing through the floating block, and a plurality of scale lines matching the reference line are evenly arranged circumferentially on the floating block.

[0024] In a second aspect, a multifunctional sampling method for geological exploration includes the following steps: S1: placement preparation, connecting a suitable number of sampling tubes end to end, placing the spliced ​​sampling tubes between the limit rods and sleeve the limit blocks on the limit rods.

[0025] S2: placement processing, placing the floating block equipped with the sampling tube on the water surface, and the sampling tube reaches the specified water layer.

[0026] S3: Prepare for water collection and unfold the sampling tube.

[0027] S4: Water extraction process: pull the piston to make the inside of the sampling cylinder in a negative pressure state. At this time, water enters the sampling cylinder due to the negative pressure, and then the water inside the sampling cylinder is taken out according to the required sample volume.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. In the sampling mechanism designed by the present invention, the sampling tubes spliced ​​together can cooperate with each other to uniformly sample water bodies at different depths, reducing the tediousness of sampling only a single water layer during each sampling process, and improving the sampling efficiency. At the same time, the sampling tube and the liquid inlet hole can cooperate with each other to sample water bodies in the same water layer but at different distances from the sampling tube (that is, different positions in the same water layer), thereby making the collected water data more representative.

[0030] 2. The limit rod and the limit block designed in the present invention cooperate with each other to provide limit support for the sampling tube, thereby preventing the sampling tube from shaking at the bottom of the water and causing the adjacent sampling tubes to fall off, thereby reducing the possibility of interruption of the water sampling process.

[0031] 3. The airbag designed in the present invention can increase the force-bearing area of ​​the floating block on the water surface after being inflated, thereby improving the stability of the equipment during water sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0033] Figure 2 It is a schematic diagram of the internal structure of the sampling tube of the present invention.

[0034] Figure 3 It is a schematic diagram of the three-dimensional installation structure between the sampling tube and the soft tube of the present invention.

[0035] Figure 4 It is a schematic diagram of the internal structure of the limit rod of the present invention.

[0036] Figure 5 The present invention Figure 4 A partial enlarged view of point A.

[0037] Figure 6 It is a schematic diagram of the three-dimensional installation structure between the sampling cylinder, the inclined strip and the sampling tube of the present invention.

[0038] Figure 7 It is a schematic diagram of the internal three-dimensional structure of the floating block of the present invention.

[0039] Figure 8 The present invention Figure 7 A partial enlarged view of point B in the middle.

[0040] Fig. 9 It is a schematic diagram of the three-dimensional installation structure between the extension rod, the traction rod and the sampling tube of the present invention.

[0041] Fig.10 It is a flow chart of the multifunctional sampling method for geological prospecting of the present invention.

[0042] Description of reference numerals: 1. floating block; 10. reference line; 11. graduation line; 111. line one; 112. line two; 113. line three; 114. line four; 13. storage tank; 14. winding shaft; 15. air bag; 16. air inlet; 2. sampling mechanism; 21. sampling cylinder; 211. connecting block; 212. piston; 213. traction rod; 214. liquid outlet; 215. annular plate; 2151. connecting hole one; 2152. connecting hole two; 2153. connecting tank; 21 54. Connecting plate; 2155. Telescopic rod; 22. Limiting rod; 221. Through groove; 23. Limiting block; 24. Sampling tube; 25. Liquid inlet hole; 26. Fixing assembly; 261. Fixing plate; 262. Arc rod; 263. Moving circular plate; 264. Through seam; 265. Annular groove; 266. Linking rod; 27. Opening and closing assembly; 271. Inclined strip; 272. Connecting protrusion; 273. Soft tube; 274. Towing rope; 275. Connecting ring; 3. Extension rod. DETAILED DESCRIPTION

[0043] The following is combined with Figures 1 to 10 This application is described in further detail.

[0044] The embodiments of the present application disclose a multifunctional sampling device and a sampling method for geological exploration, which can sample water bodies at different depths and can also sample water bodies at different positions in the same water layer.

[0045] See also Figure 1 as well as Figure 3 A multifunctional sampling device for geological exploration comprises a floating block 1 having a cylindrical structure, and a sampling mechanism 2 for sampling water is arranged at the bottom of the floating block 1.

[0046] The sampling mechanism 2 comprises: a plurality of sampling tubes 21 , which are evenly arranged along the height direction of the floating block 1 , and adjacent sampling tubes 21 are detachably connected to each other.

[0047] Two limiting rods 22 are provided and symmetrically penetrate through the floating block 1 , and are used to provide limiting support for the sampling tube 21 . A limiting block 23 matching with the limiting rod 22 is provided on the side wall of each sampling tube 21 .

[0048] The sampling tube 24 is symmetrically arranged on the sampling cylinder 21 and is connected to the corresponding sampling cylinder 21 . The plane formed by the axes of the sampling tube 24 is perpendicular to the plane formed by the axes of the limiting rod 22 . The sampling tube 24 is evenly provided with a plurality of liquid inlet holes 25 along its length.

[0049] The interconnected sampling tubes 21 can cooperate with each other to uniformly sample water bodies at different depths, reducing the tediousness of sampling only a single water layer during each sampling process and improving sampling efficiency. At the same time, the sampling tube 24 and the liquid inlet hole 25 can cooperate with each other to sample water bodies in the same water layer but at different distances from the sampling tube 21 (that is, different positions in the same water layer), thereby making the collected water data more representative.

[0050] See also Figure 2 A connecting block 211 is installed on the top of the sampling cylinder 21 through a bearing, and the connecting block 211 is connected to the bottom of the adjacent sampling cylinder 21 through a threaded connection. A piston 212 is arranged inside the sampling cylinder 21 along its length direction. A traction rod 213 is installed on the piston 212 to pull it to move along the inner wall of the sampling cylinder 21, and the traction rod 213 passes through the corresponding connecting block 211. The side wall of the sampling cylinder 21 is also provided with a liquid outlet 214 that passes through the interior thereof, and an annular plate 215 is rotatably arranged on the inner wall of the sampling cylinder 21 to cooperate with the liquid outlet 214.

[0051] The sampling tube 21 closest to the floating block 1 is fixed on the floating block 1, and the traction rod 213 corresponding to the sampling tube 21 is slidably set on the floating block 1, and the limit rod 22 is long enough. During the specific operation, according to the number of water layers to be sampled, a suitable number of sampling tubes 21 are selected and the sampling tubes 21 are connected end to end. At this time, the connecting block 211 on the top of the sampling tube 21 is rotated, and the connecting block 211 is installed on the bottom of the adjacent sampling tube 21 through a threaded connection. At this time, the limit block 23 is located on the same vertical plane, which is convenient for the subsequent limit rod 22 to penetrate The limit block 23, at this time, the spliced ​​sampling cylinder 21 is moved between the limit rods 22 and the limit rods 22 pass through the limit block 23 corresponding to the sampling cylinder 21, and the corresponding connecting block 211 of the sampling cylinder 21 at the top after splicing is installed on the bottom of the sampling cylinder 21 closest to the floating block 1 through a threaded connection, so that the spliced ​​sampling cylinder 21 and the floating block 1 form a whole, and the bottom of the sampling cylinder 21 farthest from the floating block 1 is blocked by the existing sealing plate, ensuring that the sampling cylinder 21 farthest from the floating block 1 remains in a relatively closed state and can store the sampled water.

[0052] See also Figure 2 The bottom of the piston 212 is connected to the top of the adjacent traction rod 213 through a threaded connection.

[0053] During the splicing process of the sampling tubes 21 , the top of the traction rod 213 is installed on the piston 212 corresponding to the adjacent sampling tubes 21 through a threaded connection, so that the piston 212 corresponding to the adjacent sampling tubes 21 and the traction rod 213 form a whole.

[0054] See also Figure 4 as well as Figure 5The limiting rod 22 passes through the limiting block 23, a through slot 221 is provided inside the limiting rod 22, and a fixing assembly 26 corresponding to the limiting block 23 is installed inside the through slot 221. The fixing assembly 26 includes: a fixing plate 261, which is installed on the inner wall of the through slot 221 and matches the limiting block 23 one by one.

[0055] There are multiple arc-shaped rods 262 which are evenly installed on the fixed plate 261 in the circumferential direction, and a movable circular plate 263 which is slidably matched with the inner wall of the through groove 221 is installed on the arc-shaped rods 262 corresponding to each fixed plate 261 .

[0056] The limiting rod 22 is evenly provided with a plurality of groups of through slits 264 corresponding to the fixing plate 261 along its length direction, and each group of through slits 264 cooperates with the arc rod 262 on the corresponding fixing plate 261 . The limiting block 23 is also provided with an annular groove 265 that cooperates with each group of arc rods 262 .

[0057] See also Figure 5 as well as Figure 7 A linkage rod 266 extending along the length direction is arranged inside the through groove 221, and the linkage rod 266 passes through the movable circular plate 263 and is connected to the movable circular plate 263 by a threaded connection. The top end of the linkage rod 266 is installed on the top of the limiting rod 22 through a bearing.

[0058] The arc rod 262 is made of a deformable material, that is, it can be slightly deformed under external force. The fixed plate 261 is provided with a clearance groove for the linkage rod 266 to make way, that is, the linkage rod 266 can pass through the fixed plate 261. In specific operation, when the spliced ​​sampling tube 21 is installed on the floating block 1, the linkage rod 266 is rotated. The linkage rod 266 rotates and drives the moving circular plate 263 to slide downward on the inner wall of the through groove 221 through a threaded connection. At this time, the moving circular plate 263 drives the moving circular plate 263 to slide downward during the downward movement. The arc rod 262 moves downward, and due to the obstruction of the fixed plate 261, the arc rod 262 is deformed and bent outward through the through seam 264. At this time, the bent part of the arc rod 262 enters the annular groove 265 during the deformation process, and then the bent part of the arc rod 262 and the annular groove 265 cooperate with each other to limit the limit block 23, ensuring that the limit block 23 will not slide off the limit rod 22 during the sampling process, and then the limit rod 22 and the limit block 23 cooperate with each other to ensure that the sampling tube 21 will not be displaced in the vertical direction.

[0059] When the bent portion of the arc rod 262 enters the annular groove 265, the linkage rod 266 is fixed by existing fasteners (such as latches). The fasteners are common knowledge and are not described in detail and are not shown in the drawings.

[0060] The limiting rod 22 can provide limiting support for the sampling tube 21 through the cooperation between the arc rod 262 and the limiting block 23. The cooperation between the limiting block 23 and the limiting rod 22 can share the impact force of the water on the sampling tube 21, thereby preventing the sampling tube 21 from shaking at the bottom of the water under the impact of the water, causing the connection between adjacent sampling tubes 21 to fall off, thereby reducing the possibility of interruption of the water sampling process.

[0061] The spliced ​​sampling tube 21 and the floating block 1 are placed in a designated sampling water area. At this time, the sampling tube 21 enters the water body and the floating block 1 floats on the water surface.

[0062] See also Figure 4 as well as Figure 6 The sampling cylinder 21 is also provided with an opening and closing assembly 27 that cooperates with the sampling tube 24 . The opening and closing assembly 27 includes an inclined strip 271 that is arranged on the outer wall of the sampling cylinder 21 and cooperates with the sampling tube 24 to block the liquid inlet hole 25 .

[0063] The connecting protrusions 272 are symmetrically arranged on both sides of the inclined strip 271, and the sampling tube 24 is installed between the corresponding connecting protrusions 272 through a hinge shaft. A soft tube 273 is installed at one end of the sampling tube 24 close to the sampling cylinder 21, and the end of the soft tube 273 away from the sampling tube 24 is connected to the sampling cylinder 21.

[0064] The limiting rod 22 is installed on the floating block 1 through a bearing. An annular groove corresponding to the sampling tube 24 is opened on the limiting rod 22. A traction rope 274 is arranged inside the annular groove, and a connecting ring 275 matching the traction rope 274 is installed on the sampling tube 24.

[0065] At the starting position, the sampling tube 24 is squeezed by an external force and abuts against the inclined strip 271, that is, the inclined strip 271 blocks the liquid inlet 25. At the same time, an inclined structure is provided at the end of the inclined strip 271 away from the corresponding sampling tube 21. Due to the weight of the sampling tube 24 itself, the sampling tube 24 can rotate freely around the hinge axis in the water without being subjected to external force. During specific operation, when the spliced ​​sampling tube 21 is installed on the floating block 1, the traction rope 274 inside the corresponding annular groove of the sampling tube 21 is pulled and fixedly connected with the connecting ring 275 on the corresponding sampling tube 24, and the limiting rod 22 is fixed. The traction rope 274 can pull and limit the corresponding sampling tube 24, so that the sampling tube 24 is tightly attached to the inclined strip 271, and then the inclined strip 271 can block the liquid inlet 25.

[0066] When the sampling barrel 21 moves to the sampling water layer, the limit rod 22 is rotated at this time, and the traction rope 274 is released during the rotation of the limit rod 22. At this time, the sampling tube 24 is not subjected to external force, and rotates around the hinge due to its own gravity, and the liquid inlet 25 is opened. According to the required sampling position of the corresponding water layer, the sampling tube 24 can be rotated to different angles according to the length of the traction rope 274 released during the rotation process, and then the sampling tube 24 can sample water bodies at different positions of the water layer to be sampled, wherein the deformability of the soft tube 273 ensures that the sampling tube 24 can be connected with the sampling barrel 21 at any position.

[0067] The liquid outlet 214 is closed at the initial position. When the sampling tube 24 rotates to the specified position, the traction rod 213 closest to the floating block 1 is pulled. During the upward movement of the traction rod 213, it cooperates with the piston 212 to drive the remaining traction rods 213 to move upward. During the upward movement of the traction rod 213, the piston 212 can be driven upward. During the upward movement of the piston 212, the interior of the sampling tube 21 is in a negative pressure state. At this time, the water enters the sampling tube 24 through the liquid inlet 25 due to the negative pressure, and the water enters the sampling tube 21 through the sampling tube 24. After the sampling is completed, the present invention is taken out from the water body and the sampled water body is collected and processed.

[0068] The arc rod 262 can rotate around the annular groove 265 driven by the limiting rod 22, and the annular groove can give way to the traction rope 274 to prevent the limiting block 23 from colliding with the traction rope 274 when passing through the limiting rod 22.

[0069] Replay Figure 3 Since the amount of water required for sampling is uncertain, the annular plate 215 provided by the present invention cooperates with the liquid outlet 214 to take out different amounts of water during the sampling process. Specifically, the annular plate 215 is provided with a connecting hole 1 2151 and a connecting hole 2152 that cooperate with the soft tube 273. The annular plate 215 is also provided with a connecting groove 2153 that cooperates with the liquid outlet 214. A connecting plate 2154 that cooperates with the piston 212 is installed at the bottom of the annular plate 215. A telescopic rod 2155 is installed at the bottom of the piston 212. The telescopic end of the telescopic rod 2155 is installed on the corresponding connecting plate 2154.

[0070] See also Figure 7 as well as Figure 8 A traction rod 213 close to the floating block 1 passes through the floating block 1 , and a reference line 10 is arranged on the traction rod 213 passing through the floating block 1 , and a plurality of scale lines 11 matching the reference line 10 are evenly arranged circumferentially on the floating block 1 .

[0071] See also Figure 7 as well as Figure 8, the scale line 11 is divided into line 1 111, line 2 112, line 3 113, line 4 114 (such as Figure 8 As shown, the piston 212 is driven to rotate during the rotation of the traction rod 213, and the annular plate 215 is driven to rotate through the connection plate 2154 and the telescopic rod 2155 during the rotation of the piston 212. When the reference line 10 corresponds to the line 1 111, the state of the annular plate 215 is: the connecting hole 1 2151 is connected with the corresponding soft tube 273, and the annular plate 215 blocks the liquid outlet 214 at this time; when the reference line 10 corresponds to the line 2 112, the state of the annular plate 215 is: the annular Plate 215 blocks the corresponding soft tube 273, and at this time the connecting groove 2153 is connected with the liquid outlet 214; when the reference line 10 corresponds to line three 113, the state of the annular plate 215 is: the connecting hole two 2152 is connected with the corresponding soft tube 273, and at this time the connecting groove 2153 continues to be connected with the liquid outlet 214; when the reference line 10 corresponds to line four 114, the state of the annular plate 215 is: the annular plate 215 blocks the corresponding soft tube 273 and the liquid outlet 214.

[0072] When the spliced ​​sampling tube 21 is installed on the floating block 1, the existing connecting pipe is connected to the liquid outlet 214, so that the water sampled by the sampling tube 21 can be collected and processed immediately during the sampling process of the sampling tube 21, reducing the tediousness of taking the water out of the water body after taking it out from the inside of the water body.

[0073] During specific operation, at the starting position, the reference line 10 is aligned with line one 111, and the piston 212 moves to the inside of the sampling tube 21 to suck in the sampled water. When it is necessary to quantitatively sample the water (the sampled water volume is also the water storage volume of a sampling tube 21), the traction rod 213 is rotated. During the rotation of the traction rod 213, the reference line 10 moves from line one 111 to line two 112. At this time, the annular plate 215 blocks the corresponding soft tube 273. At this time, the connecting groove 2153 is connected with the liquid outlet 214, and the traction rod 213 is squeezed downward to drive the piston 212 to move downward. During the downward movement of the piston 212, the water inside the sampling tube 21 is squeezed and discharged outward from the existing connecting tube through the connecting groove 2153 and the liquid outlet 214, so that the water can be quantitatively sampled in this state.

[0074] When it is necessary to sample different amounts of water, the existing connecting pipe is connected to the external water pump, and the traction rod 213 is rotated. During the rotation of the traction rod 213, the reference line 10 is moved from line one 111 to line three 113. At this time, the connecting hole two 2152 is connected with the corresponding soft tube 273. At this time, the connecting groove 2153 continues to be connected with the liquid outlet 214. The external water pump is started to discharge the water inside the sampling tube 21 through the existing connecting pipe. Then, the external water pump and the connecting pipe cooperate with each other to sample different amounts of water, and the equipment has a wider applicability.

[0075] When water needs to be stored inside the device, rotate the traction rod 213. When the traction rod 213 rotates, the reference line 10 moves from line 111 to line 4 114. At this time, the annular plate 215 blocks the corresponding soft tube 273 and the liquid outlet 214. At this time, the sampling tube 21 is filled with water and is in a closed state. Then the device is taken out of the water, and the interior of the taken-out device is filled with the sampled water.

[0076] Therefore, different amounts of water can be sampled and processed through the above-mentioned usage method, and the applicability is wider.

[0077] See also Figure 7 When the number of sampling tubes 21 increases, the contact area between the device and the water body increases, so the probability of the device turning over when subjected to wind and waves will also increase. Therefore, the airbag 15 provided by the present invention can effectively increase the contact area between the floating block 1 and the water surface, and improve the stability of the device. A plurality of storage grooves 13 evenly distributed in the circumferential direction are provided on the side wall of the floating block 1, and a winding shaft 14 is rotatably installed inside the storage groove 13, and the winding shaft 14 is wound with an airbag 15, and an air inlet 16 is provided at one end of the airbag 15 away from the winding shaft 14.

[0078] When the spliced ​​sampling tube 21 reaches a certain length, the sampling tube 21 is put into the water and the winding shaft 14 is driven to rotate. At this time, the winding shaft 14 releases the airbag 15, and the end of the airbag 15 away from the winding shaft 14 moves toward the outside of the storage tank 13. After a certain length of the airbag 15 is released, air is inflated into the airbag 15 through the air inlet 16, and the air inlet 16 is sealed with the existing sealing plug. The expansion of the airbag 15 can effectively increase the contact area between the floating block 1 and the water surface, making the equipment more stable on the water surface.

[0079] The airbag 15 is long enough, and every time the spliced ​​sampling tube 21 increases in length, the airbag 15 will adaptively extend to the outside of the storage slot 13 to a suitable length, and the applicability is better. After the sampling is completed, the sealing plug is removed. At this time, the winding shaft 14 is driven to reverse again through the existing drive. The airbag 15 can be rolled up during the reversal of the winding shaft 14, and the bottom of the winding shaft 14 that contacts the airbag 15 can squeeze the airbag 15, so that the air inside the airbag 15 can be quickly discharged.

[0080] Example 2: Reference Fig. 9On the basis of Example 1, Example 2, the above implementation mode can sample different water layers in the shallow water area of ​​the water body. When it is necessary to sample different water layers in the deep water area of ​​the water body, the present invention further provides an extension rod 3, which can be arranged between the spliced ​​sampling tube 21 and the sampling tube 21 closest to the floating block 1, so that the spliced ​​sampling tube 21 can be extended into the deep water area of ​​the water body for sampling. Specifically, when it is necessary to sample the deep water area of ​​the water body, first place the spliced ​​sampling tube 21 between the limit rods 22, and then thread the upper end of the extension rod 3 with the piston 212 closest to the floating block 1, and then thread the lower end of the extension rod 3 with the traction rod 213 at the top of the spliced ​​sampling tube 21, and repeat the above actions to sample different water layers in the deep water area.

[0081] At this time, the sampling cylinder 21 closest to the floating block 1 only provides a driving function and does not participate in the sampling step.

[0082] Finally, see Fig.10 The present invention also provides a multifunctional sampling method for geological exploration, comprising the following steps: S1: placement preparation, selecting a suitable number of sampling tubes 21 and connecting the sampling tubes 21 end to end, at this time rotating the connecting block 211 at the top of the sampling tube 21, and making the connecting block 211 installed on the bottom of the adjacent sampling tube 21 by means of a threaded connection, at this time making the limit block 23 located on the same vertical plane, moving the spliced ​​sampling tubes 21 between the limit rods 22 and making the limit rods 22 pass through the limit blocks 23 corresponding to the sampling tubes 21, and then installing the corresponding connecting block 211 of the sampling tube 21 at the top of the spliced ​​tube at the bottom of the sampling tube 21 closest to the floating block 1 by means of a threaded connection.

[0083] S2: placement processing, placing the floating block 1 equipped with the sampling tube 21 on the water surface, at which time the sampling tube 21 reaches the designated water layer.

[0084] S3: Preparation for water collection. When the sampling tube 21 moves to the sampling water layer, the limit rod 22 is rotated. The traction rope 274 is released during the rotation of the limit rod 22. At this time, the sampling tube 24 is not subject to external force. Due to its own gravity, it rotates around the hinge shaft, and the liquid inlet 25 is opened. According to the required sampling position of the corresponding water layer, the sampling tube 24 can be rotated to different angles according to the length of the traction rope 274 released during the rotation of the sampling tube 24, so that the sampling tube 24 can sample water bodies at different positions of the water layer to be sampled.

[0085] S4: water extraction process, pulling the piston 212 to make the interior of the sampling cylinder 21 in a negative pressure state, at this time water enters the sampling cylinder 21 due to the negative pressure, and then the water in the sampling cylinder 21 is extracted according to the required sample volume.

[0086] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0087] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multifunctional sampling device for geological exploration, comprising a floating block (1) in a cylindrical structure, characterized in that: The bottom of the floating block (1) is provided with a sampling mechanism (2) for sampling the water body, wherein: The sampling mechanism (2) comprises: a plurality of sampling tubes (21) uniformly arranged along the height direction of the floating block (1), and adjacent sampling tubes (21) are connected to each other in a detachable manner; Two limiting rods (22) are provided and symmetrically penetrate the floating block (1) and are used to provide limiting support for the sampling tube (21). A limiting block (23) matching with the limiting rod (22) is provided on the side wall of each sampling tube (21); The sampling tube (24) is symmetrically arranged on the sampling tube (21) and is connected to the corresponding sampling tube (21), and the plane formed by the axis of the sampling tube (24) is perpendicular to the plane formed by the axis of the limiting rod (22), and the sampling tube (24) is evenly provided with a plurality of liquid inlet holes (25) along its length direction; The top of the sampling cylinder (21) is provided with a connecting block (211) via a bearing, and the connecting block (211) is connected to the bottom of an adjacent sampling cylinder (21) via a threaded connection. A piston (212) is provided inside the sampling cylinder (21) along its length direction, and a traction rod (213) is installed on the piston (212) for pulling it to move along the inner wall of the sampling cylinder (21), and the traction rod (213) passes through the corresponding connecting block (211). The side wall of the sampling cylinder (21) is also provided with a liquid outlet (214) that passes through the inside of the sampling cylinder (21), and the inner wall of the sampling cylinder (21) is rotatably provided with an annular plate (215) that matches the liquid outlet (214); The sampling tube (21) is also provided with an opening and closing assembly (27) matched with the sampling tube (24), and the opening and closing assembly (27) comprises: an inclined strip (271) arranged on the outer wall of the sampling tube (21) and matched with the sampling tube (24) for blocking the liquid inlet hole (25); The connecting protrusions (272) are symmetrically arranged on both sides of the inclined strip (271), and the sampling tube (24) is rotatably installed between the corresponding connecting protrusions (272) through a hinge shaft. A soft tube (273) is installed at one end of the sampling tube (24) close to the sampling barrel (21), and the end of the soft tube (273) away from the sampling tube (24) is connected to the sampling barrel (21); The limiting rod (22) is installed on the floating block (1) through a bearing, and an annular groove corresponding to the sampling tube (24) is opened on the limiting rod (22), a traction rope (274) is arranged inside the annular groove, and a connecting ring (275) matching the traction rope (274) is installed on the sampling tube (24).

2. The multifunctional sampling device for geological exploration according to claim 1, characterized in that: The limiting rod (22) passes through the limiting block (23), a through slot (221) is provided inside the limiting rod (22), and a fixing assembly (26) corresponding to the limiting block (23) is installed inside the through slot (221), and the fixing assembly (26) comprises: The fixing plate (261) is mounted on the inner wall of the through groove (221) and matches with the limiting block (23) one by one; A plurality of arc-shaped rods (262) are provided and are evenly mounted on the fixed plate (261) in the circumferential direction, and a movable circular plate (263) that is slidably matched with the inner wall of the through groove (221) is mounted on the arc-shaped rods (262) corresponding to each fixed plate (261); The limiting rod (22) is evenly provided with a plurality of groups of through slits (264) corresponding to the fixing plate (261) along its length direction, and each group of through slits (264) is matched with the arc-shaped rod (262) on the corresponding fixing plate (261), and the limiting block (23) is also provided with an annular groove (265) matched with each group of arc-shaped rods (262).

3. A multifunctional sampling device for geological exploration according to claim 2, characterized in that: The through groove (221) is provided with a linkage rod (266) extending along its length direction, and the linkage rod (266) passes through the movable circular plate (263) and is connected to the movable circular plate (263) by means of a threaded connection, and the top end of the linkage rod (266) is installed on the top of the limiting rod (22) by means of a bearing.

4. The multifunctional sampling device for geological exploration according to claim 1, characterized in that: The bottom of the piston (212) is connected to the top of the adjacent traction rod (213) via a threaded connection.

5. The multifunctional sampling device for geological exploration according to claim 1, characterized in that: The annular plate (215) is provided with a first communicating hole (2151) and a second communicating hole (2152) which are matched with the soft tube (273). The annular plate (215) is also provided with a communicating groove (2153) which is matched with the liquid outlet (214). A connecting plate (2154) which is matched with the piston (212) is installed at the bottom of the annular plate (215). A telescopic rod (2155) is installed at the bottom of the piston (212). The telescopic end of the telescopic rod (2155) is installed on the corresponding connecting plate (2154).

6. The multifunctional sampling device for geological exploration according to claim 5, characterized in that: The traction rod (213) near the floating block (1) passes through the floating block (1), and a reference line (10) is arranged on the traction rod (213) passing through the floating block (1). A plurality of scale lines (11) matching the reference line (10) are evenly arranged circumferentially on the floating block (1).

7. A multifunctional sampling method for geological exploration, comprising a multifunctional sampling device for geological exploration as claimed in any one of claims 1 to 2, characterized in that: The method of use includes the following steps: S1: preparation for placement, connecting an appropriate number of sampling tubes (21) end to end, placing the connected sampling tubes (21) between the limiting rods (22) and sleeve the limiting blocks (23) on the limiting rods (22); S2: placing process, placing the floating block (1) equipped with the sampling tube (21) on the water surface, at which time the sampling tube (21) reaches the designated water layer; S3: water collection preparation, unfolding the sampling tube (24); S4: water collection processing, pulling the piston (212) so that the interior of the sampling tube (21) is in a negative pressure state, at which time the water enters the sampling tube (21) due to the negative pressure, and then the water in the sampling tube (21) is taken out according to the required sample volume.

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