Water sample collecting device for groundwater exploration

Abstract

The invention relates to the technical field of underground water sampling devices, in particular to a water sample collecting device for underground water reconnaissance, which comprises a collecting control cylinder, and further comprises a sampling support fixedly connected with the collecting control cylinder and provided with a water sample collecting part; the movable frame is installed in the sampling support in a sliding mode and detachably connected with the water sample collecting part, and when the movable frame moves into the water sample collecting part, a sealed square collecting space is defined by the movable frame and the water sample collecting part; the sampling control mechanism comprises a telescopic driving assembly and an automatic loosening assembly; the water sample collecting device for underground water exploration can accurately sample a water body at a specified depth position, particularly when sampling operation is carried out at a plurality of depth positions, deviation of a subsequent detection result is avoided, and the water sample collecting precision and effect can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of groundwater sampling devices, in particular to a water sample collecting device for groundwater exploration. Background Art

[0002] As one of the most precious freshwater resources on earth, the quality of groundwater is directly related to human production, life and the health of the ecological environment. Through sampling, we can understand the content, distribution and changing trends of various chemical components in groundwater, and then evaluate the availability and safety of groundwater. This is crucial for formulating reasonable water resource management and protection strategies. In addition, in the groundwater system, pollution sources may come from multiple aspects, such as industrial wastewater discharge, agricultural fertilizer and pesticide leakage, and urban domestic sewage. By sampling at different locations and depths, the source and transmission path of pollutants can be traced, providing a scientific basis for pollution source control and pollution control.

[0003] The existing water sample collection device for groundwater exploration cannot accurately sample water at a specified depth during use. Especially when sampling at multiple depths, it is easy to cause deviations in subsequent test results and is inconvenient to use. Therefore, in view of the above situation, there is an urgent need to develop a water sample collection device for groundwater exploration to overcome the shortcomings in current practical applications. Summary of the invention

[0004] The purpose of the present invention is to provide a water sample collection device for groundwater exploration to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A water sample collection device for groundwater exploration, comprising a collection control cylinder, and also comprising:

[0007] A sampling bracket, the sampling bracket is fixedly connected to the collection control cylinder, and a water sample collection part is also provided on the sampling bracket;

[0008] A mobile frame, the mobile frame is slidably mounted in the sampling bracket and is detachably connected to the water sample collecting part, wherein when the mobile frame moves into the water sample collecting part, the mobile frame and the water sample collecting part enclose a sealed square collecting space;

[0009] and a sampling control mechanism, the sampling control mechanism being connected to the collection control cylinder, the sampling bracket and the mobile frame respectively, wherein the sampling control mechanism comprises a telescopic driving component and an automatic loosening component;

[0010] The telescopic driving assembly is connected to the collection control cylinder and the moving frame, and the automatic loosening assembly is connected to the sampling bracket and is detachably connected to the telescopic driving assembly.

[0011] As a further solution of the present invention: it also includes: a communicating hole, the number of the communicating holes is multiple, and the multiple communicating holes are evenly distributed on the collection control cylinder;

[0012] Wherein, the number of the sampling brackets is multiple, and the multiple sampling brackets are evenly distributed on the collection control cylinder;

[0013] And collection and release openings, the number of which is equal to the number of the sampling brackets, and all are opened on the collection control cylinder, and the collection and release openings are also arranged close to the sampling brackets.

[0014] As a further solution of the present invention: it also includes: a suspension frame, the suspension frame is fixedly mounted on the collection control cylinder;

[0015] A threaded connection seat, wherein the number of the threaded connection seats is multiple, and the multiple threaded connection seats are fixedly mounted on the suspension frame;

[0016] And an inflation interface, wherein the inflation interface is arranged on the suspension frame and connected to the telescopic driving assembly.

[0017] As a further solution of the present invention: the telescopic drive assembly includes:

[0018] A telescopic control cylinder, wherein the telescopic control cylinder is fixedly installed in the collection control cylinder, and a plurality of square chambers are evenly installed in the telescopic control cylinder, and a telescopic chamber is arranged in each of the square chambers;

[0019] A connecting air pipe, the connecting air pipe is fixedly mounted on the square chamber and is connected to the telescopic chamber through a plurality of air holes, wherein the air holes are opened on the square chamber;

[0020] And a pushing and collecting unit, wherein the pushing and collecting unit is connected to the moving frame and the telescopic chamber respectively.

[0021] As a further solution of the present invention: the pushing collection unit includes:

[0022] A movable sealing plate, which is slidably mounted in the telescopic chamber and fixedly connected to the inner wall of the telescopic chamber via a return spring;

[0023] A push rod, the push rod is fixedly mounted on the movable sealing plate;

[0024] A push-pull driving rod, the push-pull driving rod is slidably connected with the collection control cylinder and abuts against the push rod;

[0025] and a clutch module, wherein the clutch module is connected to the moving frame and the push-pull driving rod respectively.

[0026] As a further solution of the present invention: the clutch module includes:

[0027] A rotating cylinder, the rotating cylinder passes through the moving frame and is rotatably connected to the moving frame, wherein one end of the push-pull driving rod is inserted into the rotating cylinder;

[0028] A sliding control groove, the sliding control groove is provided on the push-pull driving rod;

[0029] A positioning control rod, the positioning control rod is located in the rotating cylinder and abuts against the end of the push-pull driving rod, and the positioning control rod is also detachably connected to the sliding control groove;

[0030] And a direction linkage head, which is fixedly mounted on the rotating cylinder and detachably connected to the automatic loosening component.

[0031] As a further solution of the present invention: it also includes: a limiting groove, the limiting groove is fixedly installed in the rotating cylinder;

[0032] And a sliding seat, which is slidably installed in the limiting groove and fixedly connected with the positioning control rod.

[0033] As a further solution of the present invention: the automatic release assembly comprises:

[0034] A push plate connected to the telescopic drive assembly;

[0035] A card slot, the card slot is opened on the sampling bracket;

[0036] A clamping rod, the clamping rod is clamped on the clamping slot and is detachably connected to the clamping slot, and the clamping rod is also detachably connected to the push plate;

[0037] A gravity block, the gravity block is fixedly connected to the engaging rod;

[0038] and a suspension detection unit, wherein the suspension detection unit is connected to the sampling bracket and the engaging rod respectively.

[0039] As a further solution of the present invention: the suspension detection unit includes:

[0040] A support plate, the support plate is fixedly mounted on the sampling bracket;

[0041] A rotating shaft, the rotating shaft passes through the supporting plate and is rotatably connected to the supporting plate, wherein a connector is fixedly mounted on one end of the rotating shaft, and the connector is detachably connected to the telescopic driving assembly;

[0042] A rotating monitoring wheel, wherein the rotating monitoring wheel is fixedly mounted on the other end of the rotating shaft;

[0043] And a pull rope, one end of which is wound around the rotating monitoring wheel, and the other end of which is fixedly connected to the locking rod.

[0044] As a further solution of the present invention: it also includes: a flow guide head, which is fixedly installed at the bottom end of the collection control cylinder.

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] When collecting water, first, the hanging device can be connected to the threaded connection seat, wherein the hanging device can be in the form of a rope and connected to the threaded connection seat through a flange joint, and another air pipe is connected to the inflation interface. The threaded connection method can be adopted, and the air pipe is tied to the rope, and the collection control tube and multiple sampling brackets are suspended together with the rope to move downward in the water. In addition, through the provided connecting holes and collection and release ports, on the one hand, the operation of the sampling control mechanism can be facilitated, and on the other hand, the overall collection control tube can be in a state of being completely connected to the outside, which not only saves costs, but also reduces the influence of buoyancy. No further details will be given here. Then, after reaching the designated sampling position, the external gas filling device can be used to introduce high-pressure gas into the air pipe, and the high-pressure gas enters the telescopic drive assembly through the inflation interface, and the telescopic drive assembly drives the mobile frame to slide on the sampling bracket and move toward the direction of the water sample collection part. Since the mobile frame and the water sample collection part are both in an open state at this time, the overall During the downward movement of the collection equipment in the water body, water samples at other positions will not be collected due to leakage and other factors until the designated sampling depth is reached. As the mobile frame enters the water sample collection part, sealing pads are arranged at the edges of the mobile frame. After the mobile frame completely enters the water sample collection part, a sealed square collection space is formed, and the water sample at the designated position is stored in the square collection space. Multiple samples can be collected at the same time by setting multiple sampling brackets, mobile frames and water sample collection parts. The connection state of the telescopic drive component and the mobile frame can also be changed by setting an automatic loosening component, so that multiple sampling brackets, mobile frames and water sample collection parts do not work at the same time, so as to facilitate sample collection work at water bodies at different depths. The operation is simple, and the water body at the designated depth can be sampled accurately. In particular, when sampling at multiple depths, deviations in subsequent test results can be avoided, which is beneficial to improving the accuracy and effect of water sample collection and provides convenience for the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic diagram of the three-dimensional structure of the collection device in an embodiment of the present invention.

[0048] Figure 2 It is a schematic diagram of the three-dimensional structure of the guide head in an embodiment of the present invention.

[0049] Figure 3 It is a schematic diagram of the enlarged three-dimensional structure of the sampling bracket in an embodiment of the present invention.

[0050] Figure 4 It is a schematic diagram of the three-dimensional structure of the mobile frame in an embodiment of the present invention.

[0051] Figure 5 It is a schematic diagram of the three-dimensional structure of the gravity block in an embodiment of the present invention.

[0052] Figure 6 It is a schematic diagram of a partial cross-sectional structure of the telescopic control cylinder in an embodiment of the present invention.

[0053] Figure 7 It is a schematic diagram of the front structure of the movable sealing plate in an embodiment of the present invention.

[0054] Figure 8 Schematic diagram of the main structure of the air hole in the embodiment of the present invention.

[0055] Fig. 9 Schematic diagram of the cross-sectional structure of the push-pull driving rod in the embodiment of the present invention.

[0056] Fig.10 It is a schematic diagram of the cross-sectional structure of the rotating cylinder in an embodiment of the present invention.

[0057] Fig.11 It is a schematic cross-sectional structure diagram of a positioning control rod in an embodiment of the present invention.

[0058] Fig.12 It is a schematic diagram of the main structure of the sliding control groove distribution in an embodiment of the present invention.

[0059] In the figure: 1-collection control cylinder, 2-connecting hole, 3-collection receiving and releasing port, 4-suspension frame, 5-threaded connection seat, 6-inflating interface, 7-sampling bracket, 8-guiding head, 9-gravity block, 10-moving frame, 11-direction linkage head, 12-rotating cylinder, 13-push-pull driving rod, 14-water sample collection part, 15-rotating axis, 16-rotating monitoring wheel, 17-pull rope, 18-clamping rod, 19-cage groove, 20-connecting head, 21-support plate, 22-push plate, 23-telescopic control cylinder, 24-square chamber, 25-connecting air pipe, 26-top rod, 27-movable sealing plate, 28-air hole, 29-reset spring, 30-telescopic chamber, 31-sliding control groove, 32-limiting groove, 33-sliding seat, 34-positioning control rod. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0061] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0062] See also Figure 1-Figure 12 The embodiment of the present invention provides a water sample collection device for groundwater exploration, comprising a collection control cylinder 1, and further comprising:

[0063] A sampling bracket 7, wherein the sampling bracket 7 is fixedly connected to the collection control cylinder 1, and a water sample collection portion 14 is also provided on the sampling bracket 7;

[0064] A mobile frame 10, wherein the mobile frame 10 is slidably mounted in the sampling bracket 7 and is detachably connected to the water sample collecting portion 14, wherein when the mobile frame 10 moves into the water sample collecting portion 14, the mobile frame 10 and the water sample collecting portion 14 enclose a sealed square collecting space;

[0065] and a sampling control mechanism, which is respectively connected to the collection control cylinder 1, the sampling bracket 7 and the mobile frame 10, wherein the sampling control mechanism includes a telescopic driving component and an automatic loosening component;

[0066] The telescopic driving assembly is connected to the collection control cylinder 1 and the moving frame 10 , and the automatic loosening assembly is connected to the sampling bracket 7 and is detachably connected to the telescopic driving assembly.

[0067] See also Figure 1-Figure 12, further comprising: a communicating hole 2, the communicating holes 2 are in a plurality, and the plurality of communicating holes 2 are evenly distributed on the collection control cylinder 1;

[0068] There are multiple sampling brackets 7, and the multiple sampling brackets 7 are evenly distributed on the collection control cylinder 1;

[0069] And a collection and release opening 3 , the number of which is equal to the number of the sampling brackets 7 , and all are opened on the collection control cylinder 1 , and the collection and release opening 3 is also arranged close to the sampling bracket 7 .

[0070] It also includes: a suspension frame 4, which is fixedly mounted on the collection control cylinder 1;

[0071] A threaded connection seat 5, wherein the number of the threaded connection seats 5 is multiple, and the multiple threaded connection seats 5 are all fixedly mounted on the suspension frame 4;

[0072] And an inflation interface 6, wherein the inflation interface 6 is provided on the suspension frame 4 and connected to the telescopic driving assembly.

[0073] When collecting water, first, the hanging device can be connected to the threaded connection seat 5, wherein the hanging device can be in the form of a rope and connected to the threaded connection seat 5 through a flange joint, and another air pipe is connected to the inflation interface 6. The threaded connection method can be adopted, and the air pipe is tied to the rope, and the collection control tube 1 and multiple sampling brackets 7 are suspended together with the rope to move downward in the water. In addition, through the provided connecting hole 2 and the collection and release port 3, on the one hand, the operation of the sampling control mechanism can be facilitated, and on the other hand, the overall collection control tube 1 can be in a state of being completely connected to the outside, which not only saves costs but also reduces the influence of buoyancy. No more details are given here. Then, after reaching the designated sampling position, the external gas filling device can be used to introduce high-pressure gas into the air pipe, and the high-pressure gas enters the telescopic drive component through the inflation interface 6, and the telescopic drive component drives the mobile frame 10 to slide on the sampling bracket 7 and move toward the direction of the water sample collection part 14. Since the mobile frame 10 and the water sample collection part 14 are both in an open state at this time, the overall collection During the downward movement of the equipment in the water body, water samples at other positions will not be collected due to leakage or other factors until the designated sampling depth is reached. As the mobile frame 10 enters the water sample collection part 14, sealing pads are arranged at the edges of the mobile frame 10. After the mobile frame 10 completely enters the water sample collection part 14, a sealed square collection space is formed, and the water sample at the designated position is stored in the square collection space. Multiple samples can be collected at the same time by setting multiple sampling brackets 7, the mobile frame 10 and the water sample collection part 14. The connection state of the telescopic drive component and the mobile frame 10 can also be changed by setting an automatic loosening component, so that the multiple sampling brackets 7, the mobile frame 10 and the water sample collection part 14 do not work at the same time, so as to facilitate the sample collection work of water bodies at different depths. The operation is simple, and the water bodies at the designated depth can be sampled accurately. In particular, when sampling at multiple depths, deviations in subsequent detection results can be avoided, which is conducive to improving the accuracy and effect of water sample collection and provides convenience for the staff.

[0074] In one embodiment of the present invention, see Figure 1-Figure 12 , the telescopic drive assembly comprises:

[0075] A telescopic control cylinder 23, wherein the telescopic control cylinder 23 is fixedly installed in the collection control cylinder 1, and a plurality of square chambers 24 are evenly installed in the telescopic control cylinder 23, and a telescopic chamber 30 is arranged in each of the square chambers 24;

[0076] A connecting air pipe 25, wherein the connecting air pipe 25 is fixedly mounted on the square chamber 24 and is connected to the telescopic chamber 30 through a plurality of air holes 28, wherein the air holes 28 are opened on the square chamber 24;

[0077] And a pushing and collecting unit, wherein the pushing and collecting unit is connected to the moving frame 10 and the telescopic chamber 30 respectively.

[0078] The pushing collection unit comprises:

[0079] A movable sealing plate 27, wherein the movable sealing plate 27 is slidably mounted in the telescopic chamber 30 and is fixedly connected to the inner wall of the telescopic chamber 30 via a return spring 29;

[0080] A push rod 26, the push rod 26 is fixedly mounted on the movable sealing plate 27;

[0081] A push-pull driving rod 13, wherein the push-pull driving rod 13 is slidably connected to the collection control cylinder 1 and abuts against the top rod 26;

[0082] and a clutch module, wherein the clutch module is connected to the moving frame 10 and the push-pull driving rod 13 respectively.

[0083] The clutch module comprises:

[0084] A rotating cylinder 12, the rotating cylinder 12 passes through the moving frame 10 and is rotatably connected to the moving frame 10, wherein one end of the push-pull driving rod 13 is inserted into the rotating cylinder 12;

[0085] A sliding control groove 31, wherein the sliding control groove 31 is formed on the push-pull driving rod 13;

[0086] A positioning control rod 34, wherein the positioning control rod 34 is located in the rotating cylinder 12 and abuts against the end of the push-pull driving rod 13, and the positioning control rod 34 is also detachably connected to the sliding control groove 31;

[0087] And a direction linkage head 11, which is fixedly mounted on the rotating cylinder 12 and detachably connected to the automatic release component.

[0088] It also includes: a limiting groove 32, which is fixedly installed in the rotating cylinder 12;

[0089] And a slide seat 33 , the slide seat 33 is slidably installed in the limiting groove 32 and fixedly connected to the positioning control rod 34 .

[0090] After the collection control tube 1 and the sampling bracket 7 reach the specified depth position, the external high-pressure gas will first enter the connecting air pipe 25 through the inflation interface 6, and enter the multiple telescopic chambers 30 through the multiple air holes 28 respectively. Under the action of the air pressure, the movable sealing plate 27 will move outward in the telescopic chamber 30 and push the push rod 26 to move synchronously. At this time, the reset spring 29 is gradually in a stretched state. The reset spring 29 may also be omitted. After the sampling is completed, it is only necessary to manually push the movable sealing plate 27 to return to its original position. During the movement of the push rod 26, the push-pull driving rod 13 will be pushed to move synchronously, and the push-pull driving rod 13 will push the rotating cylinder 12 to move synchronously, thereby driving the mobile frame 10 to move on the sampling bracket 7. At this time, the sliding control groove 31 on the push-pull driving rod 13 and the positioning control rod 34 are just offset by 90 degrees, and the end of the push-pull driving rod 13 will push the rotating cylinder 12 to move through the positioning control rod 34, and drive the mobile frame 10 to move synchronously, wherein the positioning control rod 34 can be in the form of a telescopic rod or an electromagnet, which can make The positioning control rod 34 slides in the limit groove 32 through the slide seat 33, thereby changing the relative position between the rotating cylinder 12 and the push-pull drive rod 13 to change the position of the mobile frame 10 on the sampling bracket 7, so that the positions of multiple mobile frames 10 on the sampling bracket 7 can be controlled to be different. When the push-pull drive rod 13 is pushed the same distance, multiple mobile frames 10 will arrive at the water sample collection part 14 one after another and complete the water sample collection work, so that sampling operations at different depths can be realized. When the positioning control rod 34 is not started, the positions of multiple mobile frames 10 on multiple sampling brackets 7 are exactly the same, so multiple water samples can be collected at the same depth, so that two working states can be realized, which can be selected according to actual needs. After the sampling is completed, when taking out the sample, it is only necessary to push the mobile frame 10 to move in the opposite direction in the sampling bracket 7 by manpower, and separate the mobile frame 10 from the water sample collection part 14. After the two are separated, the water sample in the square collection space will flow out naturally, which is convenient for the staff to collect. No more details will be given here.

[0091] In one embodiment of the present invention, see Figure 1-Figure 12 , the automatic release assembly comprises:

[0092] A push plate 22, wherein the push plate 22 is connected to the telescopic drive assembly;

[0093] A card slot 19, wherein the card slot 19 is provided on the sampling bracket 7;

[0094] A clamping rod 18, wherein the clamping rod 18 is clamped on the clamping slot 19 and is detachably connected to the clamping slot 19, and the clamping rod 18 is also detachably connected to the push plate 22;

[0095] A gravity block 9, wherein the gravity block 9 is fixedly connected to the engaging rod 18;

[0096] And a suspension detection unit, wherein the suspension detection unit is connected to the sampling bracket 7 and the engaging rod 18 respectively.

[0097] The suspension detection unit comprises:

[0098] A support plate 21, wherein the support plate 21 is fixedly mounted on the sampling bracket 7;

[0099] A rotating shaft 15, the rotating shaft 15 passes through the supporting plate 21 and is rotatably connected to the supporting plate 21, wherein a connector 20 is fixedly mounted on one end of the rotating shaft 15, and the connector 20 is detachably connected to the telescopic driving assembly;

[0100] A rotating monitoring wheel 16, wherein the rotating monitoring wheel 16 is fixedly mounted on the other end of the rotating shaft 15;

[0101] And a pull rope 17 , one end of which is wound around the rotating monitoring wheel 16 , and the other end of which is fixedly connected to the locking rod 18 .

[0102] It also includes: a flow guide head 8, which is fixedly installed at the bottom end of the collection control tube 1.

[0103] When collecting multiple samples at the same depth position, as the mobile frame 10 moves toward the water sample collection part 14, the mobile frame 10 will also drive the push plate 22 to move synchronously. After the mobile frame 10 enters the water sample collection part 14 and the direction linkage head 11 enters the connector 20, the push plate 22 will contact the engaging rod 18. Then, during the continuous movement of the mobile frame 10 (at this time, the entire mobile frame 10 moves in the water sample collection part 14, and the square sampling space is in a sealed state), the push plate 22 will push the engaging rod 18 to move, and the engaging rod 18 will separate from the engaging groove 19. Then, under the action of the deadweight of the gravity block 9, the pull rope 17 will be pulled downward and the rotating monitoring wheel 16 will be driven to rotate. By setting the starting point position where the pull rope 17 is wrapped around the rotating monitoring wheel 16 (that is, the end of the pull rope 17 is fixed at such a position as Figure 5The side of the rotating monitoring wheel 16 shown in the figure is so that the rotating monitoring wheel 16 can rotate 90° under the pulling action of the pull rope 17, and under the gravity of the gravity block 9, the end position of the pull rope 17 is placed at the lowest end of the rotating monitoring wheel 16 and then stops). Under the pulling action of the gravity block 9, the rotating monitoring wheel 16 can be rotated 90°, and the rotating shaft 15 and the connector 20 can be driven to rotate synchronously, and the connector 20 can drive the direction linkage head 11 to rotate synchronously, so that the rotating cylinder 12 and the positioning control rod 34 can also rotate. The positioning control rod 34 is moved 90° to make the position of the sliding control groove 31. At this time, even if the telescopic chamber 30 is inflated again, the push-pull driving rod 13 will not drive the rotating cylinder 12 and the moving frame 10 to move. The moving frame 10 can be accurately controlled to reach the sampling position to avoid leakage of the square sampling space due to the effects of inflation, etc., and the sampling accuracy is further guaranteed. At the same time, under the gravity of the gravity block 9, a pulling force is generated on the rotating monitoring wheel 16. Under the detection effect of the rotating monitoring wheel 16, , the detection value can be fed back to the terminal device of the staff, so as to remind the staff that the sampling position has been reached and the sampling has been completed; when sampling at multiple depth positions, the first set of mobile frames 10 and water sample collection part 14 for sampling (the mobile frames 10 of other groups have not yet reached the water sample collection part 14), under the pulling action of the gravity block 9, makes the positioning control rod 34 face the position of the sliding control groove 31, then when sampling at the next depth position, during the process of the next mobile frame 10 entering the water sample collection part 14, the push-pull drive rod 13 corresponding to the first group of mobile frames 10 moves in the rotating cylinder 12, and the positioning control rod 34 slides in the sliding control groove 31, then the first group of mobile frames 10 will not continue to move in the water sample collection part 14, thereby avoiding the first group or the first few groups of samples from being contaminated during the sampling process at other positions, thereby ensuring the smooth progress of the entire water sample collection, and ensuring the accuracy of the sampling results, providing convenience for the staff.

[0104] In summary, when collecting water, first, the hanging device can be connected to the threaded connection seat 5, wherein the hanging device can be in the form of a rope and connected to the threaded connection seat 5 through a flange joint, and another air pipe is connected to the inflation interface 6. The threaded connection method can be adopted, and the air pipe is tied to the rope, and the collection control tube 1 and multiple sampling brackets 7 are suspended together with the rope to move downward in the water. In addition, through the provided connecting hole 2 and the collection and release port 3, on the one hand, the operation of the sampling control mechanism can be facilitated, and on the other hand, the overall collection control tube 1 can be in a state of being completely connected to the outside, which not only saves costs, but also reduces the influence of buoyancy. No more details are given here. Then, after reaching the designated sampling position, the external gas filling device can be used to introduce high-pressure gas into the air pipe, and the high-pressure gas enters the telescopic drive assembly through the inflation interface 6, and the telescopic drive assembly drives the mobile frame 10 to slide on the sampling bracket 7 and move toward the direction of the water sample collection part 14. At this time, the mobile frame 10 and the water sample collection part 14 are both in an open state. In this state, during the downward movement of the overall collection device in the water body, water samples at other positions will not be collected due to leakage or other factors until the designated sampling depth is reached. As the mobile frame 10 enters the water sample collection part 14, sealing pads are arranged at the edges of the mobile frame 10. After the mobile frame 10 completely enters the water sample collection part 14, a sealed square collection space is formed, and the water sample at the designated position is stored in the square collection space. Through the multiple sampling brackets 7, the mobile frame 10 and the water sample collection part 14, multiple samples can be collected at the same time. The connection state of the telescopic drive component and the mobile frame 10 can also be changed through the automatic loosening component, so that the multiple sampling brackets 7, the mobile frame 10 and the water sample collection part 14 do not work at the same time, so as to facilitate the sample collection work of the water body at different depths. The operation is simple, and the water body at the designated depth can be sampled accurately. In particular, when sampling at multiple depths, deviations in subsequent detection results can be avoided, which is conducive to improving the accuracy and effect of water sample collection.

[0105] It should be noted that in the present invention, unless otherwise clearly specified and limited, the terms "slide", "rotate", "fix", "have" and the like should be understood in a broad sense, for example, it can be a welding connection, a bolt connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0106] 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 water sample collection device for groundwater exploration, comprising a collection control cylinder, characterized in that: Also includes: A sampling bracket, the sampling bracket is fixedly connected to the collection control cylinder, and a water sample collection part is also provided on the sampling bracket; A mobile frame, the mobile frame is slidably mounted in the sampling bracket and is detachably connected to the water sample collecting part, wherein when the mobile frame moves into the water sample collecting part, the mobile frame and the water sample collecting part enclose a sealed square collecting space; and a sampling control mechanism, the sampling control mechanism being connected to the collection control cylinder, the sampling bracket and the mobile frame respectively, wherein the sampling control mechanism comprises a telescopic driving component and an automatic loosening component; The telescopic driving assembly is connected to the collection control cylinder and the moving frame, and the automatic loosening assembly is connected to the sampling bracket and is detachably connected to the telescopic driving assembly.

2. The water sample collection device for groundwater exploration according to claim 1, characterized in that: Also includes: A communicating hole, wherein the communicating holes are in a plurality and the plurality of communicating holes are evenly distributed on the collection control cylinder; Wherein, the number of the sampling brackets is multiple, and the multiple sampling brackets are evenly distributed on the collection control cylinder; And collection and release openings, the number of which is equal to the number of the sampling brackets, and all are opened on the collection control cylinder, and the collection and release openings are also arranged close to the sampling brackets.

3. The water sample collection device for groundwater exploration according to claim 2, characterized in that: Also includes: A suspension frame, wherein the suspension frame is fixedly mounted on the collection control cylinder; A threaded connection seat, wherein the number of the threaded connection seats is multiple, and the multiple threaded connection seats are fixedly mounted on the suspension frame; And an inflation interface, wherein the inflation interface is arranged on the suspension frame and connected to the telescopic driving assembly.

4. The water sample collection device for groundwater exploration according to any one of claims 1 to 3, characterized in that: The telescopic drive assembly comprises: A telescopic control cylinder, wherein the telescopic control cylinder is fixedly installed in the collection control cylinder, and a plurality of square chambers are evenly installed in the telescopic control cylinder, and a telescopic chamber is arranged in each of the square chambers; A connecting air pipe, the connecting air pipe is fixedly mounted on the square chamber and is connected to the telescopic chamber through a plurality of air holes, wherein the air holes are opened on the square chamber; And a pushing and collecting unit, wherein the pushing and collecting unit is connected to the moving frame and the telescopic chamber respectively.

5. The water sample collection device for groundwater exploration according to claim 4, characterized in that: The pushing collection unit comprises: A movable sealing plate, which is slidably mounted in the telescopic chamber and fixedly connected to the inner wall of the telescopic chamber via a return spring; A push rod, the push rod is fixedly mounted on the movable sealing plate; A push-pull driving rod, the push-pull driving rod is slidably connected with the collection control cylinder and abuts against the push rod; and a clutch module, wherein the clutch module is connected to the moving frame and the push-pull driving rod respectively.

6. The water sample collection device for groundwater exploration according to claim 5, characterized in that: The clutch module comprises: A rotating cylinder, the rotating cylinder passes through the moving frame and is rotatably connected to the moving frame, wherein one end of the push-pull driving rod is inserted into the rotating cylinder; A sliding control groove, the sliding control groove is provided on the push-pull driving rod; A positioning control rod, the positioning control rod is located in the rotating cylinder and abuts against the end of the push-pull driving rod, and the positioning control rod is also detachably connected to the sliding control groove; And a direction linkage head, which is fixedly mounted on the rotating cylinder and detachably connected to the automatic loosening component.

7. The water sample collection device for groundwater exploration according to claim 6, characterized in that: Also includes: A limiting groove, wherein the limiting groove is fixedly installed in the rotating cylinder; And a sliding seat, which is slidably installed in the limiting groove and fixedly connected with the positioning control rod.

8. The water sample collection device for groundwater exploration according to claim 1, characterized in that: The automatic release assembly comprises: A push plate connected to the telescopic drive assembly; A card slot, the card slot is opened on the sampling bracket; A clamping rod, the clamping rod is clamped on the clamping slot and is detachably connected to the clamping slot, and the clamping rod is also detachably connected to the push plate; A gravity block, the gravity block is fixedly connected to the engaging rod; and a suspension detection unit, wherein the suspension detection unit is connected to the sampling bracket and the engaging rod respectively.

9. The water sample collection device for groundwater exploration according to claim 8, characterized in that: The suspension detection unit comprises: A support plate, the support plate is fixedly mounted on the sampling bracket; A rotating shaft, the rotating shaft passes through the supporting plate and is rotatably connected to the supporting plate, wherein a connector is fixedly mounted on one end of the rotating shaft, and the connector is detachably connected to the telescopic driving assembly; A rotating monitoring wheel, wherein the rotating monitoring wheel is fixedly mounted on the other end of the rotating shaft; And a pull rope, one end of which is wound around the rotating monitoring wheel, and the other end of which is fixedly connected to the locking rod.

10. The water sample collection device for groundwater exploration according to claim 1 or 9, characterized in that: Also includes: A flow guide head is fixedly mounted on the bottom end of the collection control cylinder.

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