Sampling device for river sediment ecological restoration

Abstract

The present application provides a sampling device for riverbed sediment ecological restoration, including a hull, a bracket, a plurality of samplers and a linear drive assembly; the hull has a plurality of through holes arranged at intervals along the left and right directions; the bracket is fixedly arranged on the upper side of the hull, and has a plurality of lifting columns thereon, and the plurality of lifting columns are slidably inserted into the plurality of through holes to extend into the sediment on the lower side of the hull; a plurality of samplers are respectively fixed at the lower ends of the plurality of lifting columns, and each sampler is detachably connected to the lifting columns; and the sampler is used to insert the sediment and collect samples; the linear drive assembly is arranged on the bracket, and is transmission-connected to the plurality of lifting columns to drive the movement of the plurality of lifting columns. The sampling device for riverbed sediment ecological restoration provided by the present application can realize automatic and efficient sampling, replace the traditional manual sampling mode, ensure the effective sampling and storage of riverbed sediment, and thus ensure the effective detection of the progress and effect of riverbed sediment ecological restoration.

Description

Technical Field

[0001] The present application belongs to the field of ecological restoration technology, and specifically relates to a sampling device for riverbed sediment ecological restoration. Background Art

[0002] Riverbed mud is an important component of the aquatic ecosystem and a major reservoir of pollutants and nutrients. In the aquatic ecosystem, a large amount of pollutants will enter the water body and attach to the mud through physical and chemical reactions such as adsorption, precipitation, and complexation, eventually causing sediment pollution.

[0003] There are many existing methods for controlling endogenous pollution in sediments, which can be divided into ex situ treatment technology and in situ treatment technology. Regardless of the treatment method, the sediment needs to be sampled and tested to record and analyze the progress and effects of ecological restoration in real time.

[0004] The common method of sediment sampling is achieved manually. Specifically, after the hull is stabilized, the operator holds a rod and inserts the sampler into the sediment for sampling; then, the rod is pulled out, the sampler is taken out of the water, and the sample is discharged into the corresponding storage container.

[0005] The inventors found that the existing sediment sampling method is relatively traditional. When faced with the situation of sampling in the same area and multiple batches, it will have technical defects such as reduced sampling efficiency and incorrect sample classification after sampling due to the instability of human operation. Utility Model Content

[0006] The embodiment of the present application provides a sampling device for riverbed sediment ecological restoration, which aims to achieve automatic and efficient sampling, replace the traditional manual sampling mode, ensure the effective sampling and storage of riverbed sediment, and thus ensure the effective detection of the progress and effect of riverbed sediment ecological restoration.

[0007] To achieve the above purpose, the technical solution adopted in this application is:

[0008] A sampling device for riverbed sediment ecological restoration is provided, comprising:

[0009] A hull is used for traveling on the water, and has a plurality of through holes which penetrate in the up-down direction and are arranged in parallel in the horizontal direction; the arrangement direction of the plurality of through holes is defined as the left-right direction;

[0010] A bracket, fixedly arranged on the upper side of the hull, having a plurality of lifting columns corresponding to the plurality of through holes; each of the lifting columns is slidably connected to the bracket along the up-down direction, and is slidably inserted into the corresponding through hole along the up-down direction;

[0011] A plurality of samplers corresponding to the plurality of lifting columns one by one, and each of the samplers can be detachably connected to the lower end of the corresponding lifting column for inserting into the bottom mud and collecting samples; and

[0012] The linear drive assembly is arranged on the bracket and is transmission-connected with the plurality of lifting columns so as to drive the plurality of lifting columns to move in the up-down direction.

[0013] In a possible implementation, the linear drive assembly includes:

[0014] an active roller, which is arranged on the bracket, has an axial direction parallel to the left-right direction, and is rotatably connected to the bracket along the left-right direction; and

[0015] A rotating motor is fixedly arranged on the bracket, its power output axis is parallel to the left and right direction, and its power output end is drivingly connected to the driving roller;

[0016] There is a transmission structure between the active roller and each lifting column; when the rotary motor drives the active roller to rotate, the active roller can drive multiple lifting columns to move in the up and down directions through multiple groups of the transmission structures.

[0017] In a possible implementation, the transmission structure includes:

[0018] A plurality of tooth grooves are provided on a side of the lifting column facing the driving roller and are arranged in parallel along the vertical direction; and

[0019] A gear coaxially connected to the driving roller and adapted to mesh with the tooth groove;

[0020] Wherein, when the active roller rotates, the lifting column can move in the up and down directions under the meshing transmission of the gear and the tooth groove.

[0021] In a possible implementation, the sampler has a slot suitable for the lifting column to be inserted, and a positioning hole that runs through in the horizontal direction and communicates with the slot; and the lifting column has a positioning hole that runs through in the horizontal direction and is suitable for being coaxially connected with the positioning hole; and a locking member is also provided between the lifting column and the sampler;

[0022] When the lifting column is inserted into the slot and the positioning hole is connected to the alignment hole, the locking member can connect the lifting column and the sampler.

[0023] In a possible implementation, the locking member includes:

[0024] A locking bolt, adapted to be inserted into the positioning hole and the alignment hole that are interconnected, and one end of which extends out to the outside of the sampler; and

[0025] The stop nut is suitable for being threadedly connected to the protruding end of the locking bolt, and is suitable for abutting against the outer side surface of the sampler to limit the locking bolt from withdrawing from the positioning hole.

[0026] In a possible implementation, the sampler has a receiving slot with an opening facing downward, and a sealing member for closing the opening of the receiving slot; the sealing member includes:

[0027] A fixing plate, fixedly connected to the lower end of the sampler and enclosing part of the containing groove; and

[0028] A rotating plate is rotatably arranged in the receiving groove along the up-down direction, which is suitable for closing a part of the receiving groove, and is located above the fixed plate; an operating rod extending upward is provided on the rotating plate, and the operating rod is coaxially arranged with the rotating axis of the rotating plate; the operating rod passes through the sampler and the lifting column and extends to the upper side of the lifting column, and a limiting structure is provided between the extended end of the operating rod and the lifting column;

[0029] Wherein, when the rotating plate moves to overlap with the fixed plate, or avoids the fixed plate, the limiting structure can connect the operating rod and the lifting column to limit the rotation of the rotating plate;

[0030] When the rotating plate rotates to avoid the fixed plate and the limiting structure connects the operating rod and the lifting column, the fixed plate and the rotating plate form a plate structure that closes the opening of the receiving slot and is suitable for limiting the sample from exiting the receiving slot.

[0031] In a possible implementation, the limiting structure includes:

[0032] A raised portion, arranged at the upper end of the lifting column, extending outward in the horizontal direction, and having a limiting hole penetrating in the up-down direction;

[0033] Two docking parts are both arranged at the extended end of the operating rod, both extend outward in the horizontal direction, and both have docking holes that penetrate in the up-down direction; when the rotating plate moves to overlap with the fixed plate, or avoids the fixed plate, the protrusion is connected to one of the docking parts, and the limiting hole is coaxially connected to the corresponding docking hole; and

[0034] The insertion rod is suitable for being inserted into the mutually connected limiting hole and the docking hole from top to bottom, and the upper end of the insertion rod has an extension part suitable for supporting the upper side of the docking part.

[0035] In one possible implementation, the fixing plate is embedded in the accommodating groove, and the opening of the accommodating groove has a blocking portion extending inward and suitable for connecting with the fixing plate; and the blocking portion has a through hole, and a connecting bolt suitable for threaded connection with the fixing plate is inserted into the through hole.

[0036] In a possible implementation, a filling piece is inserted into each of the through holes; each of the filling pieces has a guide hole that penetrates in the up-down direction and is suitable for the lifting column to pass through, and a connecting rod is provided between two adjacent filling pieces in the left-right direction;

[0037] The outer periphery of the sampler extends out of the outer side of the lifting column; when the linear drive assembly drives the lifting column to move in the up and down directions, the sampler is suitable for abutting against the filling piece to make the filling piece move upward to the upper side of the hull.

[0038] In a possible implementation, the hull includes:

[0039] Base; and

[0040] Two groups of buoyancy barrels are arranged in parallel on the lower side of the base along the left-right direction, and each group of buoyancy barrels includes a plurality of buoyancy barrels arranged in parallel along the front-back direction;

[0041] Wherein, each of the lifting columns is located between two groups of the buoyancy barrels, so that the sampler is arranged to avoid the buoyancy barrels.

[0042] In an embodiment of the present application, the sampler can be moved into the sampling area by the movement of the hull, and then the lifting column is driven to move by the linear drive assembly so that multiple samplers are inserted into the bottom mud to achieve sampling of the bottom mud at the same depth or different depths.

[0043] Compared with the prior art, the sampling device for riverbed sediment ecological restoration provided in this embodiment can realize automatic and efficient sampling, replacing the traditional manual sampling mode, ensuring the effective sampling and storage of riverbed sediment, thereby ensuring the effective detection of the progress and effect of riverbed sediment ecological restoration. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 One of the three-dimensional structural schematic diagrams of the sampling device for riverbed sediment ecological restoration provided in the embodiment of the present application;

[0045] Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle circle A;

[0046] Figure 3 The second schematic diagram of the three-dimensional structure of the sampling device for river sediment ecological restoration provided in the embodiment of the present application;

[0047] Figure 4 for Figure 3 A partial enlarged schematic diagram of the middle circle B;

[0048] Figure 5 A partially enlarged schematic diagram of a base and a filling member used in an embodiment of the present application under an exploded perspective;

[0049] Figure 6 A schematic diagram of the combined structure of the bracket and the lifting column used in the embodiment of the present application;

[0050] Figure 7 A partially enlarged schematic diagram of a lifting column and an operating rod used in an embodiment of the present application in a cross-sectional perspective;

[0051] Figure 8 A partially enlarged schematic diagram of a sampler and a lifting column used in an embodiment of the present application in a cross-sectional perspective;

[0052] Fig. 9 A partial enlarged schematic diagram of a sampler and a closure member used in an embodiment of the present application under an explosion perspective;

[0053] Fig.10 A partially enlarged schematic diagram of a lifting column used in an embodiment of the present application;

[0054] Fig.11 A partially enlarged schematic diagram of a sampler and a lifting column used in an embodiment of the present application under an explosion perspective;

[0055] Explanation of the reference numerals: 1. hull; 11. base; 111. through hole; 112. filling piece; 1121. guide hole; 1122. connecting rod; 12. buoyancy barrel; 2. bracket; 3. sampler; 31. slot; 32. positioning hole; 33. accommodating slot; 34. blocking part; 341. through hole; 342. connecting bolt; 4. linear drive assembly; 41. active roller; 42. rotating motor; 5. lifting column; 51. alignment hole; 6. transmission structure; 61. tooth groove; 62. gear; 7. locking piece; 71. locking bolt; 72. stop nut; 8. closing piece; 81. fixing plate; 82. rotating plate; 821. operating rod; 9. limiting structure; 91. protrusion; 911. limiting hole; 92. docking part; 921. docking hole; 93. insertion rod; 931. extension part. DETAILED DESCRIPTION

[0056] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0057] Please also read Figures 1 to 11 The sampling device for riverbed sediment ecological restoration provided by the present application is now described. The sampling device for riverbed sediment ecological restoration proposed in the present application comprises a hull 1, a bracket 2, a plurality of samplers 3 and a linear drive assembly 4.

[0058] The hull 1 is used for traveling on the water, and has a plurality of through holes 111 thereon which penetrate in the up-down direction and are arranged in parallel in the horizontal direction. In this embodiment, for the convenience of description, the arrangement direction of the plurality of through holes 111 is defined as the left-right direction.

[0059] The bracket 2 is fixedly arranged on the upper side of the hull 1, and has a plurality of lifting columns 5 corresponding to the plurality of through holes 111; each lifting column 5 is slidably connected to the bracket 2 along the up-down direction, and is slidably inserted into the corresponding through hole 111 along the up-down direction.

[0060] The plurality of samplers 3 correspond to the plurality of lifting columns 5 one by one, and each sampler 3 can be detachably connected to the lower end of the corresponding lifting column 5 for inserting into the bottom mud and collecting samples.

[0061] The linear drive assembly 4 is disposed on the bracket 2 and is transmission-connected to the plurality of lifting columns 5 so as to drive the plurality of lifting columns 5 to move in the up-and-down direction.

[0062] In the embodiment of the present application, the sampler 3 can be moved into the sampling area by the movement of the hull 1, and then the lifting column 5 is driven to move by the linear drive component 4 so that multiple samplers 3 are inserted into the bottom mud to achieve sampling of the bottom mud at the same depth or different depths.

[0063] Compared with the prior art, the sampling device for riverbed sediment ecological restoration provided in this embodiment can realize automatic and efficient sampling, replacing the traditional manual sampling mode, ensuring the effective sampling and storage of riverbed sediment, thereby ensuring the effective detection of the progress and effect of riverbed sediment ecological restoration.

[0064] In some embodiments, Figure 2 and Figure 6 As shown, the linear drive assembly 4 includes a driving roller 41 and a rotating motor 42 .

[0065] The active roller 41 is disposed on the bracket 2 , with its axial direction parallel to the left-right direction, and is rotatably connected to the bracket 2 along the left-right direction.

[0066] The rotating motor 42 is fixedly arranged on the bracket 2 , and its power output axis is parallel to the left-right direction, and its power output end is drivingly connected to the active roller 41 .

[0067] There is a transmission structure 6 between the active roller 41 and each lifting column 5 ; when the rotating motor 42 drives the active roller 41 to rotate, the active roller 41 can drive multiple lifting columns 5 to move in the up and down direction through multiple sets of transmission structures 6 .

[0068] In some embodiments, Figure 6 As shown, the transmission structure 6 includes a plurality of tooth grooves 61 and gears 62 .

[0069] The plurality of tooth grooves 61 are all formed on a side of the lifting column 5 facing the driving roller 41 , and are arranged in parallel along the up-down direction.

[0070] The gear 62 is coaxially connected to the driving roller 41 and is adapted to mesh with the tooth groove 61 .

[0071] When the driving roller 41 rotates, the lifting column 5 can move in the up and down direction under the meshing transmission of the gear 62 and the tooth groove 61 .

[0072] In some embodiments, Fig.11 As shown, the sampler 3 has a slot 31 suitable for the lifting column 5 to be inserted, and a positioning hole 32 that runs through the slot 31 in the horizontal direction; and the lifting column 5 has a positioning hole 51 that runs through the horizontal direction and is suitable for being coaxially connected to the positioning hole 32; there is also a locking piece 7 between the lifting column 5 and the sampler 3.

[0073] By adopting the above technical solution, when the lifting column 5 is inserted into the slot 31 and the positioning hole 32 and the alignment hole 51 are connected, the locking member 7 can connect the lifting column 5 and the sampler 3 .

[0074] In some embodiments, Fig.11 As shown, the locking member 7 includes a locking bolt 71 and a locking nut 72 .

[0075] The locking bolt 71 is suitable for being inserted into the positioning hole 32 and the alignment hole 51 which are connected to each other, and one end of the locking bolt 71 extends out of the outside of the sampler 3 .

[0076] The stop nut 72 is suitable for being threadedly connected to the protruding end of the locking bolt 71 , and is suitable for abutting against the outer side surface of the sampler 3 to limit the locking bolt 71 from withdrawing from the positioning hole 32 .

[0077] In some embodiments, Figure 8 and Fig. 9 As shown, the sampler 3 has a receiving groove 33 opening downward, and a closing member 8 for closing the opening of the receiving groove 33 .

[0078] In this embodiment, the closing member 8 includes a fixed plate 81 and a rotating plate 82 .

[0079] The fixing plate 81 is fixedly connected to the lower end of the sampler 3 , and its closed portion accommodates the groove 33 .

[0080] The rotating plate 82 is rotatably disposed in the receiving groove 33 along the up-down direction, and is suitable for closing a portion of the receiving groove 33 , and is located above the fixed plate 81 .

[0081] Among them, the rotating plate 82 has an operating rod 821 extending upward, and the operating rod 821 is coaxially arranged with the rotating axis of the rotating plate 82; and the operating rod 821 passes through the sampler 3 and the lifting column 5 and extends to the upper side of the lifting column 5, and a limiting structure 9 is provided between the extended end of the operating rod 821 and the lifting column 5.

[0082] By adopting the above technical solution, when the rotating plate 82 moves to overlap with the fixed plate 81, or avoids the fixed plate 81, the limiting structure 9 can connect the operating rod 821 and the lifting column 5 to limit the rotation of the rotating plate 82; and, when the rotating plate 82 rotates to avoid the fixed plate 81 and the limiting structure 9 connects the operating rod 821 and the lifting column 5, the fixed plate 81 and the rotating plate 82 form a plate structure that closes the opening of the receiving groove 33 and is suitable for limiting the sample from exiting the receiving groove 33.

[0083] In some embodiments, Figure 2 , Figure 7 and Fig.10 As shown, the limiting structure 9 includes a protruding portion 91 and two docking portions 92 .

[0084] The protrusion 91 is disposed at the upper end of the lifting column 5 , extends outward in the horizontal direction, and has a limiting hole 911 penetrating in the up-down direction.

[0085] The two docking portions 92 are both disposed at the protruding end of the operating rod 821 , both extend outward in the horizontal direction, and both have docking holes 921 penetrating in the up-down direction.

[0086] When the rotating plate 82 moves to overlap with the fixed plate 81 or avoids the fixed plate 81, the protruding portion 91 is connected to one of the docking portions 92, and the limiting hole 911 and the corresponding docking hole 921 are coaxially connected.

[0087] The insertion rod 93 is suitable for being inserted from top to bottom into the mutually connected limiting hole 911 and docking hole 921, and its upper end has an extension portion 931 suitable for being supported on the upper side of the docking portion 92; when the insertion rod 93 is inserted into the mutually connected limiting hole 911 and docking hole 921 and the extension portion 931 is supported on the upper side of the docking portion 92, the operating rod 821 cannot continue to rotate.

[0088] In some embodiments, Fig. 9As shown, the fixing plate 81 is embedded in the receiving groove 33, and the opening of the receiving groove 33 has a blocking portion 34 extending inwardly and suitable for connecting with the fixing plate 81; and, the blocking portion 34 has a through hole 341, and a connecting bolt 342 suitable for threaded connection with the fixing plate 81 is inserted into the through hole 341.

[0089] In some embodiments, Figure 5 As shown, a filling piece 112 is inserted into each through hole 111; each filling piece 112 has a guide hole 1121 that passes through in the up-down direction and is suitable for the lifting column 5 to pass through, and a connecting rod 1122 is provided between two adjacent filling pieces 112 in the left-right direction.

[0090] After actual assembly, the periphery of the sampler 3 extends out of the outside of the lifting column 5; when the linear drive assembly 4 drives the lifting column 5 to move in the up and down directions, the sampler 3 is suitable for abutting the filling piece 112 to move the filling piece 112 upward to the upper side of the hull 1.

[0091] In some embodiments, Figure 1 As shown, the hull 1 includes a base 11 and two sets of buoyancy barrels 12 .

[0092] Two groups of buoyancy barrels 12 are arranged side by side on the lower side of the base 11 along the left-right direction, and each group of buoyancy barrels 12 includes multiple buoyancy barrels 12 arranged side by side along the front-back direction; after actual combination, each lifting column 5 is located between the two groups of buoyancy barrels 12 so that the sampler 3 is arranged away from the buoyancy barrels 12.

[0093] The above content is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A sampling device for riverbed sediment ecological restoration, characterized in that: include: A hull is used for traveling on the water, and has a plurality of through holes which penetrate in the up-down direction and are arranged in parallel in the horizontal direction; the arrangement direction of the plurality of through holes is defined as the left-right direction; A bracket, fixedly arranged on the upper side of the hull, having a plurality of lifting columns corresponding to the plurality of through holes; each of the lifting columns is slidably connected to the bracket along the up-down direction, and is slidably inserted into the corresponding through hole along the up-down direction; A plurality of samplers corresponding to the plurality of lifting columns one by one, and each of the samplers can be detachably connected to the lower end of the corresponding lifting column for inserting into the bottom mud and collecting samples; and The linear drive assembly is arranged on the bracket and is transmission-connected with the plurality of lifting columns so as to drive the plurality of lifting columns to move in the up-down direction.

2. The sampling device for riverbed sediment ecological restoration according to claim 1, characterized in that: The linear drive assembly comprises: an active roller, which is arranged on the bracket, has an axial direction parallel to the left-right direction, and is rotatably connected to the bracket along the left-right direction; and A rotating motor is fixedly arranged on the bracket, its power output axis is parallel to the left and right direction, and its power output end is drivingly connected to the driving roller; There is a transmission structure between the active roller and each lifting column; when the rotary motor drives the active roller to rotate, the active roller can drive multiple lifting columns to move in the up and down directions through multiple groups of the transmission structures.

3. The sampling device for riverbed sediment ecological restoration according to claim 2, characterized in that: The transmission structure comprises: A plurality of tooth grooves are provided on a side of the lifting column facing the driving roller and are arranged in parallel along the vertical direction; and A gear coaxially connected to the driving roller and adapted to mesh with the tooth groove; Wherein, when the active roller rotates, the lifting column can move in the up and down directions under the meshing transmission of the gear and the tooth groove.

4. The sampling device for riverbed sediment ecological restoration according to claim 1, characterized in that: The sampler has a slot suitable for the lifting column to be inserted, and a positioning hole that runs through in the horizontal direction and communicates with the slot; and the lifting column has a positioning hole that runs through in the horizontal direction and is suitable for being coaxially connected with the positioning hole; a locking piece is also provided between the lifting column and the sampler; When the lifting column is inserted into the slot and the positioning hole and the alignment hole are connected, the locking member can connect the lifting column and the sampler.

5. The sampling device for riverbed sediment ecological restoration according to claim 4, characterized in that: The locking member comprises: A locking bolt, adapted to be inserted into the positioning hole and the alignment hole that are interconnected, and one end of which extends out to the outside of the sampler; and The stop nut is suitable for being threadedly connected to the protruding end of the locking bolt, and is suitable for abutting against the outer side surface of the sampler to limit the locking bolt from withdrawing from the positioning hole.

6. The sampling device for riverbed sediment ecological restoration according to claim 1, characterized in that: The sampler has a receiving groove with an opening facing downward, and a sealing member for closing the opening of the receiving groove; the sealing member comprises: A fixing plate, fixedly connected to the lower end of the sampler and enclosing part of the containing groove; and A rotating plate is rotatably arranged in the receiving groove along the up-down direction, which is suitable for closing a part of the receiving groove, and is located above the fixed plate; an operating rod extending upward is provided on the rotating plate, and the operating rod is coaxially arranged with the rotating axis of the rotating plate; the operating rod passes through the sampler and the lifting column and extends to the upper side of the lifting column, and a limiting structure is provided between the extended end of the operating rod and the lifting column; Wherein, when the rotating plate moves to overlap with the fixed plate, or avoids the fixed plate, the limiting structure can connect the operating rod and the lifting column to limit the rotation of the rotating plate; When the rotating plate rotates to avoid the fixed plate and the limiting structure connects the operating rod and the lifting column, the fixed plate and the rotating plate form a plate structure that closes the opening of the receiving slot and is suitable for limiting the sample from exiting the receiving slot.

7. The sampling device for riverbed sediment ecological restoration according to claim 6, characterized in that: The limiting structure comprises: A raised portion, arranged at the upper end of the lifting column, extending outward in the horizontal direction, and having a limiting hole penetrating in the up-down direction; Two docking parts are both arranged at the extended end of the operating rod, both extend outward in the horizontal direction, and both have docking holes that penetrate in the up-down direction; when the rotating plate moves to overlap with the fixed plate, or avoids the fixed plate, the protrusion is connected to one of the docking parts, and the limiting hole is coaxially connected to the corresponding docking hole; and The insertion rod is suitable for being inserted into the mutually connected limiting hole and the docking hole from top to bottom, and the upper end of the insertion rod has an extension part suitable for supporting the upper side of the docking part.

8. The sampling device for riverbed sediment ecological restoration according to claim 6, characterized in that: The fixing plate is embedded in the receiving groove, and the opening of the receiving groove has a blocking portion extending inwardly and suitable for connecting with the fixing plate; and the blocking portion has a through hole, and a connecting bolt suitable for threaded connection with the fixing plate is inserted into the through hole.

9. The sampling device for riverbed sediment ecological restoration according to claim 1, characterized in that: A filling piece is inserted into each through hole; each of the filling pieces has a guide hole that penetrates in the up-down direction and is suitable for the lifting column to pass through, and a connecting rod is provided between two adjacent filling pieces in the left-right direction; The outer periphery of the sampler extends out of the outer side of the lifting column; when the linear drive assembly drives the lifting column to move in the up and down directions, the sampler is suitable for abutting against the filling piece to make the filling piece move upward to the upper side of the hull.

10. The sampling device for riverbed sediment ecological restoration according to any one of claims 1 to 9, characterized in that: The hull comprises: Base; and Two groups of buoyancy barrels are arranged in parallel on the lower side of the base along the left-right direction, and each group of buoyancy barrels includes a plurality of buoyancy barrels arranged in parallel along the front-back direction; Wherein, each of the lifting columns is located between two groups of the buoyancy barrels, so that the sampler is arranged to avoid the buoyancy barrels.

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