Stream sediment sampling device

Abstract

The present invention provides a water system sediment sampling device, which relates to the technical field of material measurement and sampling, and includes a sampling device body. The sampling device body is used to store and resample collected water system sediments. The sampling device body includes a sample tank, a locking mechanism, and a proportional sampling assembly. The top of the sample tank is provided with an opening, and a linkage slider is embedded in the opening. A long screw is inserted into the linkage slider. The present invention is used to store collected water system sediments for a long time, and to resample the stored water system sediments from the device provided by the present invention at any time. Each sampling can ensure that the solid-liquid ratio of the small amount of sample extracted this time remains fixed, thereby improving the effectiveness of each sample in multiple samplings. At the same time, it also further improves the separation effect of samples within the divided range during the sampling process, reduces the probability of leakage, and improves the effectiveness of multiple samplings.

Description

Technical Field

[0001] The invention relates to the technical field of material determination and sampling, in particular to a water system sediment sample sampling device. Background Art

[0002] Stream sediments refer to particulate matter transported or deposited in river channels, recording important information about the formation and evolution of the continental crust. After being collected, stream sediments are stored. When testing experiments are needed during long periods of storage, small samples are taken directly from the large amount of collected and stored stream sediments. These small samples are then used for testing. Therefore, the same batch of stream sediments can be sampled multiple times. This process requires the use of storage equipment for large quantities of stream sediments and sampling equipment during storage.

[0003] In the prior art, the sampling process for the collected water system sediments can be directly extracted from the inside of the sample tank by a suction device. However, during the long-term storage of water system sediments, precipitation will occur. Therefore, due to the influence of this phenomenon, it is difficult for conventional sampling devices to directly extract the sediment part of the bottom layer of water system sediments and the surface solution part in equal proportions. For example: the solid-liquid ratio of this batch of water system sediments is 1:10. When using a traditional sampling device to extract this batch of water system sediments, if the extraction point is too high, it will lead to excessive liquid extraction, and ultimately the solid-liquid ratio of the sample extracted this time will be less than 1:10. Especially when multiple samplings are performed continuously, the first extraction will cause the sediment part of the bottom layer to be stirred and unable to be quickly spread out in the bottom area, resulting in the second extraction being unable to obtain a sample with the same solid-liquid ratio as the first extraction. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a water system sediment sample sampling device to solve the problems raised in the above-mentioned background technology. The present invention is used to store the collected water system sediments for a long time, and to re-sample the stored water system sediments from the device provided by the present invention at any time. Each sampling can ensure that the solid-liquid ratio of the small amount of sample extracted this time remains fixed, thereby improving the effectiveness of each sample in multiple samplings. At the same time, it also further improves the separation effect of samples within the divided range during the sampling process, reduces the probability of leakage, and improves the effectiveness of multiple samplings.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a water system sediment sample sampling device, including a sampling device body, the sampling device body including a sample tank, a locking mechanism and a proportional sampling component, the top of the sample tank is provided with an opening, a linkage slider is embedded in the interior of the opening, a long screw is inserted in the interior of the linkage slider, support rings are provided at both ends of the sample tank, a bracket is welded at the bottom of the support ring, a bottom plate is integrally formed at the bottom of the bracket, a locking mechanism is installed on the surface of the bottom plate, the top of the locking mechanism is against the bottom end of the sample tank, a proportional sampling component is inserted in the interior of the sample tank, a sampling plate and a blocking plate are installed at the end of the proportional sampling component, and the sampling plate and the blocking plate are both semicircular in structure, the long screw is inserted downward into the inner side of the sample tank from the inside of the opening, and the end of the long screw is used to dock with the sampling plate or the blocking plate.

[0006] Furthermore, sealing sleeves are provided at both ends of the sample tank, the proportional sampling assembly passes through the inside of the sealing sleeve, a second slide groove is provided inside the bottom plate, and a positioning baffle is integrally formed on the surface of the bottom plate, and a locking hole is provided at the bottom end of the surface of the sample tank.

[0007] Furthermore, there are two openings, and one end of each opening is connected to a sealing cover plate, and one end of the opening rests on one side of the support ring, and a gap is set between the other end of the opening and the support ring on the other side.

[0008] Furthermore, the sample tank is of a columnar structure as a whole, and arc-shaped observation windows are provided at both ends of the surface of the sample tank, and a sampling pipe is connected to one end of the bottom of the sample tank.

[0009] Furthermore, the locking mechanism includes a sliding plate, a supporting plate and a spring rod, the bottom of the sliding plate is integrally formed with a convex strip, the surface of the sliding plate is welded with a lifting sleeve, and the top of the lifting sleeve is welded with a supporting plate.

[0010] Furthermore, the support plate has an overall arc-shaped structure, and a first ball is embedded in the surface of the support plate. A spring rod is inserted into the interior of the lifting sleeve. A limiting convex ring is integrally formed on the top of the side of the spring rod, and a second ball is embedded in the top of the spring rod.

[0011] Furthermore, the sliding plate is embedded into the interior of the second slide groove through the convex strip at the bottom, the support plate is pressed against the surface of the sample tank through the first ball on the surface, the top end of the spring rod passes upward from the interior of the lifting sleeve, and the second ball is used to be embedded into the interior of the locking hole.

[0012] Furthermore, the proportional sampling assembly includes a first push-pull rod, a second push-pull rod, a sampling plate and a blocking plate. The ends of the first push-pull rod and the second push-pull rod are integrally formed with docking columns. The sides of the sampling plate and the blocking plate are both affixed with rubber strips, and the sides of the sampling plate and the blocking plate are provided with slots and extrusion grooves.

[0013] Furthermore, an arc-shaped groove is provided in the middle of the sampling plate and the barrier plate, a sealing film is bonded to the side of the arc-shaped groove, a plug-in interlayer is provided on the inner wall of the arc-shaped groove, a plug-in plate is integrally formed on the side of the docking column, the plug-in plate is embedded in the interior of the plug-in interlayer, a magnetic plate is attached to the end of the docking column, a first slide groove is provided on the inner wall of the opening, a threaded sleeve is provided inside the linkage slider, the long screw passes through the inside of the threaded sleeve, and the end of the long screw is embedded in the inside of the slot or the extrusion groove, the sampling plate and the barrier plate are both fitted with the inner wall of the sample tank through the rubber strips on the side, and the first push-pull rod and the second push-pull rod are adsorbed and fitted through the magnetic plate.

[0014] Furthermore, the sampling device is used to store and resample the collected water system sediments. The collected water system sediments are directly stored in a sample tank for long-term retention, and when the stored water system sediments need to be used, they are sampled directly from the inside of the sample tank.

[0015] Beneficial effects of the present invention:

[0016] 1. The water sediment sample sampling device can control the sample tank to rotate with the help of the movable support structures at both ends, and with the help of the rotation effect, all the samples inside the sample tank can be quickly mixed and spread, and the sediment part can be evenly distributed at every position inside the sample tank. The rotation process can also be coordinated with the moving state of the locking mechanism to avoid the obstruction problem caused by the top opening, which is more flexible.

[0017] 2. The water sediment sampling device is equipped with two sets of proportional sampling components. Each time a sample is taken, it can be pulled through one of the sampling plates, while the other sampling plate blocks the samples that are not within the sampling range. With the help of this structure, even if multiple samples are taken, the solid-liquid ratio of each sample can be ensured to remain consistent, thereby improving the effectiveness of each sample in multiple sampling.

[0018] 3. During each sampling, the water sediment sampling device can use the long screw at the top to increase the extrusion force between the bottom sampling plate and the bottom end of the inner wall of the sample tank, further improving the separation effect of samples within the divided range during the sampling process, and effectively reducing the probability of penetration between the sample sampled this time and other samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the appearance of the water sediment sample sampling device of the present invention;

[0020] Figure 2 This is a structural diagram of the interior of the sample tank of the present invention;

[0021] Figure 3 This is an internal cross-sectional view of the sample tank of the present invention when no sampling is performed;

[0022] Figure 4 is an internal cross-sectional view of the sample tank of the present invention during the sampling process;

[0023] Figure 5 for Figure 3 Enlarged view of area A in the middle;

[0024] Figure 6 It is a structural schematic diagram of the locking mechanism part of the present invention;

[0025] Figure 7 This is an exploded view of the end portion of the proportional sampling assembly of the present invention;

[0026] In the figure: 1. Sample tank; 2. Support ring; 3. Opening; 4. Bracket; 5. Bottom plate; 6. Locking mechanism; 7. Proportional sampling assembly; 8. Observation window; 9. First push-pull rod; 10. Second push-pull rod; 11. Sampling plate; 12. Blocking plate; 13. Long screw; 14. Docking column; 15. Slot; 16. Knob; 17. Linkage slider; 18. First slide groove; 19. Rubber strip; 20. Threaded sleeve; 21. Second sliding groove; 22. Positioning stop rod; 23. Sliding plate; 24. Raised strip; 25. Lifting sleeve; 26. Support plate; 27. First ball; 28. Spring rod; 29. ​​Limiting convex ring; 30. Conical column; 31. Second ball; 32. Extrusion groove; 33. Arc groove; 34. Sealing film; 35. Plug-in interlayer; 36. Plug-in plate; 37. Magnetic plate; 38. Sealing sleeve; 39. Sealing cover plate; 40. Locking hole. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] See also Figures 1 to 7 The present invention provides the following technical solution: a water system sediment sampling device that can be used to store water system sediment samples collected from the same batch for a long period of time, directly storing the samples in a sample tank 1. The device can also be used to extract a small amount of samples from the same batch of water system sediment samples during the long storage period for temporary testing and research.

[0029] The sampling device provided in this embodiment includes a sampling device body, which includes a sample tank 1, a locking mechanism 6 and a proportional sampling component 7. The top of the sample tank 1 is provided with an opening 3, the interior of the opening 3 is embedded with a linkage slider 17, and the interior of the linkage slider 17 is inserted with a long screw 13. Support rings 2 are provided at both ends of the sample tank 1, and a bracket 4 is welded to the bottom of the support ring 2. The bottom of the bracket 4 is integrally formed with a bottom plate 5, and the surface of the bottom plate 5 is installed with a locking mechanism 6. The locking mechanism 6 is against the bottom of the sample tank 1, and a proportional sampling component 7 is installed inside the sample tank 1. The ends of the proportional sampling component 7 are installed with a sampling plate 11 and a baffle plate 12, and the sampling plate 11 and the baffle plate 12 are semicircular in structure as a whole. The long screw 13 is inserted downward from the inside of the opening 3 into the inner side of the sample tank 1, and the end of the long screw 13 is used to dock with the sampling plate 11 or the baffle plate 12. The sampling device is used to quickly and multiple times sample a large number of water sediment samples stored in the sample tank 1.

[0030] When the present invention is used, the sample is stored inside the sample tank 1, and the storage capacity should not exceed the bottom area of ​​the push-pull rod of the internal proportional sampling component 7. When multiple samplings are performed later, the locking mechanism 6 is first moved to Figure 1 At the leftmost area in the sample tank, the sample tank 1 is manually controlled to swing back and forth. With the help of the rotation effect, the internal water sediment and solution are evenly dispersed toward the side. After standing for a period of time, the proportional sampling component 7 can be manually controlled to move. The number of samplings and the proportion of each sampling to the total sample volume are determined. In this embodiment, it is set to perform two samplings, each sampling accounting for one-third of the total sample volume, to explain the sampling process. Then, the locking mechanism 6 is controlled to lock the sample tank 1. Then, the first push-pull rod 9 and the second push-pull rod 10 at both ends are pulled simultaneously to control the sampling plate 11 and the baffle plate 12 to move synchronously to one-third of the sample tank 1. The closed sampling component is controlled to rotate and pull in sequence until the first sampling process is completed. Then, the sampling plate 11 and the baffle plate 12 are controlled to move to two-thirds of the sample tank 1 in sequence again. The sampling process is repeated to complete two samplings of one-third of the sample volume each time.

[0031] In this embodiment, sealing sleeves 38 are provided at both ends of the sample tank 1, and the proportional sampling assembly 7 passes through the inside of the sealing sleeve 38. A second slide groove 21 is provided inside the bottom plate 5, and a positioning bar 22 is integrally formed on the surface of the bottom plate 5. A locking hole 40 is provided at the bottom end of the surface of the sample tank 1. There are two openings 3, and one end of each opening 3 is connected to a sealing cover plate 39, and one end of the opening 3 rests on one side of the support ring 2, and a gap is provided between the other end of the opening 3 and the support ring 2 on the other side. The sample tank 1 is a columnar structure as a whole, and arc-shaped observation windows 8 are provided at both ends of the surface of the sample tank 1, and a sampling pipe is connected to one end of the bottom of the sample tank 1.

[0032] Specifically, the entire sample tank 1 is a horizontal columnar structure. Since both ends are supported by the support ring 2, when the locking mechanism 6 is moved to the end avoiding the opening 3, the sample tank 1 can be directly controlled to swing back and forth manually, and the internal water sediment can be shaken evenly with the help of the swinging effect of the sample tank 1. In this process, the top sealing cover 39 needs to seal the opening 3 to reduce the probability of the internal sample splashing out. Let it stand for a period of time, and judge whether the internal liquid is in a level state through the observation windows 8 at both ends. After preparation is completed, the proportional sampling component 7 can be used to carry out subsequent multiple continuous sampling processes.

[0033] In this embodiment, the locking mechanism 6 includes a sliding plate 23, a support plate 26, and a spring rod 28. The bottom of the sliding plate 23 is integrally formed with a ridge 24. A lifting sleeve 25 is welded to the surface of the sliding plate 23, and the top of the lifting sleeve 25 is welded to the support plate 26. The support plate 26 is an overall arc-shaped structure, and a first ball 27 is embedded in the surface of the support plate 26. The interior of the lifting sleeve 25 is inserted with a spring rod 28. A limiting convex ring 29 is integrally formed on the top of the side of the spring rod 28, and a second ball 31 is embedded at the top of the spring rod 28. The sliding plate 23 is embedded in the interior of the second chute 21 through the ridge 24 at the bottom. The support plate 26 is pressed against the surface of the sample jar 1 through the first ball 27 on the surface. The top of the spring rod 28 passes upward from the interior of the lifting sleeve 25, and the second ball 31 is used to be embedded in the interior of the locking hole 40. With the help of the movable support structures at both ends, the sample tank 1 can be controlled to swing, and with the help of the swinging effect, all the samples inside the sample tank 1 can be quickly mixed and spread out, and the sediment part can be evenly distributed at every position inside the sample tank 1. The swinging process can also cooperate with the moving state of the locking mechanism 6 to avoid the obstruction problem caused by the top opening 3, which is more flexible.

[0034] Specifically, since the entire sample tank 1 needs to be shaken or rotated to shake the internal sample solution, the locking mechanism 6 at the bottom only has a supporting effect during the shaking process. This process requires pulling the sliding plate 23 at the bottom to drive the lifting sleeve 25, the support plate 26 and the spring rod 28 structure at the top to move. When the shaking is completed and sampling is performed, it is necessary to pull the sliding plate 23 to move the locking mechanism 6 to the middle position of the sample tank 1. At this time, the second ball 31 at the top is pushed up by the inner spring rod 28 and embedded into the inside of the locking hole 40. The entire sample tank 1 can be engaged with the second ball 31 with the help of the locking hole 40 to prevent the sample tank 1 from rotating again in the subsequent process.

[0035] In this embodiment, the proportional sampling assembly 7 includes a first push-pull rod 9, a second push-pull rod 10, a sampling plate 11 and a blocking plate 12. The ends of the first push-pull rod 9 and the second push-pull rod 10 are integrally formed with docking columns 14. The sides of the sampling plate 11 and the blocking plate 12 are both affixed with rubber strips 19, and the sides of the sampling plate 11 and the blocking plate 12 are provided with slots 15 and extrusion grooves 32. An arc-shaped groove 33 is provided between the sampling plate 11 and the barrier plate 12. A sealing film 34 is bonded to the side of the arc-shaped groove 33. A plug-in interlayer 35 is provided on the inner wall of the arc-shaped groove 33. A plug-in plate 36 is integrally formed on the side of the docking post 14. The plug-in plate 36 is embedded in the inside of the plug-in interlayer 35. A magnetic plate 37 is attached to the end of the docking post 14. A first sliding groove 18 is provided on the inner wall of the opening 3. A threaded sleeve 20 is provided inside the linkage slider 17. The long screw 13 passes through the inside of the threaded sleeve 20. The end of the long screw 13 is embedded in the slot 15 or the extrusion groove 32. The sampling plate 11 and the barrier plate 12 are both attached to the inner wall of the sample tank 1 through the rubber strips 19 on the sides. The first push-pull rod 9 and the second push-pull rod 10 are adsorbed and attached by the magnetic plate 37. Two sets of proportional sampling components 7 are installed inside. Each time a sample is taken, one of the sampling plates 11 can be pulled, while the other sampling plate 11 blocks the samples that are not within the sampling range of that time. With the help of this structure, even if multiple samples are taken, the solid-liquid ratio of each sample can be ensured to remain consistent, thereby improving the effectiveness of each sample in multiple samplings.

[0036] Specifically, after the first push-pull rod 9 and the second push-pull rod 10 are moved to the sampling plate 11 and the blocking plate 12 to the third position of the sample tank 1, the sampling plate 11 and the blocking plate 12 are both in a vertical upward state in the initial stage, that is, Figure 3In the state shown, the long screw 13 is embedded in the slot 15 and synchronously drives the linkage slider 17 to move along the opening 3. After moving to the right position, the long screw 13 can be taken out from the opening 3, and the first push-pull rod 9 and the second push-pull rod 10 are manually controlled to drive the sampling plate 11 and the blocking plate 12 to rotate until the sampling plate 11 and the blocking plate 12 are embedded in the sample tank 1 at one-third of the sample position, forming a Figure 4 At this time, the long screw 13 is used to increase the pressure of the sampling plate 11 and the blocking plate 12 on the inner wall of the sample tank 1, and only the first push-pull rod 9 is pulled to pull the sampling plate 11 toward one end of the sampling pipe, opening the blocking structure on the sampling pipe, and one-third of the sample inside the sample tank 1 can be discharged from the inside of the sampling pipe with the push of the sampling plate 11. After discharge, the sampling plate 11 and the blocking plate 12 are fitted together again, and the blocking plate 12 is controlled to rotate again to Figure 3 Then, the baffle plate 12 is rotated to the position of 2 / 3 of the way along the sample tank 1. Figure 4 state, and control the sampling plate 11 to move to fit with the blocking plate 12 again, and then continue to push out the one-third sample divided this time.

[0037] During each sampling, the long screw 13 at the top can be used to increase the squeezing force between the bottom sampling plate 11 and the bottom end of the inner wall of the sample tank 1, further improving the separation effect of the samples within the divided range during the sampling process, and effectively reducing the probability of penetration between the sample sampled this time and other samples. Specifically, after the long screw 13 is pulled out from the inside of the slot 15, the sampling plate 11 and the barrier plate 12 can be manually controlled to rotate, and after rotating to a vertical downward position, as shown in FIG. Figure 4 As shown, at this time, the long screw 13 is re-embedded into the interior of the sampling plate 11 and the barrier plate 12, and will directly rest against the interior of the extrusion groove 32. At this time, the entire sampling plate 11 and the barrier plate 12 can be pressed against the inner wall of the sample tank 1 with the help of the extrusion effect. Therefore, the subsequent process of pulling the first push-pull rod 9 can increase the pressure between the sampling plate 11 and the sample tank 1 and improve the sealing. The docking column 14 part also provides the sampling plate 11 and the barrier plate 12 with expansion space for movement through the cooperation of the plug-in plate 36 and the plug-in interlayer 35, ensuring that the pressure can act smoothly on the rubber strip 19 to squeeze it against the inner wall of the sample tank 1.

[0038] The above-mentioned sampling device achieves the purpose of long-term storage of collected stream sediments. During this storage period, the batch of stream sediment samples can be resampled in small quantities from the sampling device provided by the present invention at any time, ensuring that the solid-liquid ratio remains constant during each small-scale sampling, and the solid-liquid ratio of the sample obtained during each small-scale sampling is consistent with the overall solid-liquid ratio of the stream sediment. This ensures that each small-scale sample can accurately reflect the actual parameters of the batch of stream sediments, without being affected by subsequent use due to changes in the solid-liquid ratio.

[0039] The basic principles, main features and advantages of the present invention are shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0040] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A water sediment sampling device, comprising a sampling device body, characterized in that: The sampling device body comprises a sample tank (1), a locking mechanism (6) and a proportional sampling assembly (7); an opening (3) is provided on the top of the sample tank (1); a linkage slider (17) is embedded in the interior of the opening (3); a long screw (13) is inserted in the interior of the linkage slider (17); support rings (2) are sleeved on both ends of the sample tank (1); a bracket (4) is welded to the bottom of the support ring (2); a bottom plate (5) is integrally formed at the bottom of the bracket (4); a locking mechanism (6) is installed on the surface of the bottom plate (5); the top of the locking mechanism (6) is against the bottom end of the sample tank (1); the sample tank (1) is provided with a plurality of locking mechanisms (6) and a plurality of locking mechanisms (6) are provided on the bottom end of the sample tank (1); the sample tank (1) is provided with a plurality of locking mechanisms (6) and a plurality of locking mechanisms (6) are provided on the top of the locking mechanism ... top of the locking mechanism (6) and a plurality of locking mechanisms (6) are provided on the top of the locking mechanism (6). A proportional sampling assembly (7) is inserted into the interior of the sample tank (1), and a sampling plate (11) and a baffle plate (12) are installed at the end of the proportional sampling assembly (7), and the sampling plate (11) and the baffle plate (12) are both semicircular in structure. The long screw (13) is inserted downward from the inside of the opening (3) into the inner side of the sample tank (1), and the end of the long screw (13) is used to dock with the sampling plate (11) or the baffle plate (12). The proportional sampling assembly (7) includes a first push-pull rod (9), a second push-pull rod (10), a sampling plate (11) and a baffle plate (12), and the first push-pull rod (9), the second push-pull rod (10) and the sampling plate (11) are connected to each other. 0) are integrally formed with docking posts (14), the sides of the sampling plate (11) and the baffle plate (12) are both attached with rubber strips (19), and the sides of the sampling plate (11) and the baffle plate (12) are provided with slots (15) and extrusion grooves (32), the middle of the sampling plate (11) and the baffle plate (12) are provided with arc grooves (33), the sides of the arc grooves (33) are bonded with sealing films (34), the inner wall of the arc grooves (33) is provided with plug-in interlayers (35), the sides of the docking posts (14) are integrally formed with plug-in boards (36), and the plug-in boards (36) are embedded in the plug-in interlayers (35 ), the end of the docking column (14) is attached with a magnetic plate (37), the inner wall of the opening (3) is provided with a first slide groove (18), the interior of the linkage slider (17) is provided with a threaded sleeve (20), and the long screw (13) passes through the interior of the threaded sleeve (20); the end of the long screw (13) is embedded in the slot (15) or the interior of the extrusion groove (32), the sampling plate (11) and the blocking plate (12) are both fitted with the inner wall of the sample tank (1) through the side rubber strip (19), and the first push-pull rod (9) and the second push-pull rod (10) are adsorbed and fitted through the magnetic plate (37).

2. The water sediment sampling device according to claim 1, characterized in that: Sealing sleeves (38) are provided at both ends of the sample tank (1), the proportional sampling assembly (7) passes through the interior of the sealing sleeve (38), a second slide groove (21) is provided inside the bottom plate (5), and a positioning stop rod (22) is integrally formed on the surface of the bottom plate (5), and a locking hole (40) is provided at the bottom end of the surface of the sample tank (1).

3. The water sediment sampling device according to claim 2, characterized in that: There are two openings (3), and one end of each opening (3) is connected to a sealing cover plate (39), and one end of the opening (3) rests against one side of the support ring (2), and a gap is provided between the other end of the opening (3) and the support ring (2) on the other side.

4. The water sediment sampling device according to claim 3, characterized in that: The sample tank (1) is of a columnar structure as a whole, and arc-shaped observation windows (8) are provided at both ends of the surface of the sample tank (1), and a sampling pipe is connected to one end of the bottom of the sample tank (1).

5. The water sediment sampling device according to claim 2, characterized in that: The locking mechanism (6) comprises a sliding plate (23), a supporting plate (26) and a spring rod (28); a convex strip (24) is integrally formed on the bottom of the sliding plate (23); a lifting sleeve (25) is welded to the surface of the sliding plate (23); and a supporting plate (26) is welded to the top of the lifting sleeve (25).

6. The water sediment sampling device according to claim 5, characterized in that: The supporting plate (26) is of an arc-shaped structure as a whole, and a first ball (27) is embedded in the surface of the supporting plate (26), a spring rod (28) is inserted into the interior of the lifting sleeve (25), a limiting convex ring (29) is integrally formed on the top of the side of the spring rod (28), and a second ball (31) is embedded in the top of the spring rod (28).

7. The water sediment sampling device according to claim 6, characterized in that: The sliding plate (23) is embedded in the interior of the second slide groove (21) through the convex strip (24) at the bottom, and the supporting plate (26) is pressed against the surface of the sample tank (1) through the first ball (27) on the surface. The top end of the spring rod (28) passes upward from the interior of the lifting sleeve (25), and the second ball (31) is used to be embedded in the interior of the locking hole (40).

8. The water sediment sampling device according to claim 1, characterized in that: The sampling device is used for storing and re-sampling collected water system sediments. The collected water system sediments are directly stored in a sample tank (1) for long-term retention, and when the stored water system sediments need to be used, sampling is directly performed from the inside of the sample tank (1).

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