Striking-in type double-channel bottom mud sampler

Abstract

The embodiment of the invention provides a driving-in type double-channel bottom mud sampler, and relates to the technical field of sampling. A driving-in type double-channel bottom mud sampler comprises a floating platform, a top frame is fixed to the floating platform, a bottom frame is fixed to the bottom of the floating platform, and side frames are longitudinally arranged on the two sides of the floating platform; the two sides of the top frame are each provided with a positioning assembly, the top frame comprises a double-head motor embedded in the middle of the floating platform, and the other two sides of the top frame are each provided with a driving-in assembly used in cooperation with the corresponding side frame; cylinder barrels are fixed to the periphery of the top frame, acting assemblies are arranged in the cylinder barrels and comprise transfer circular gears fixed to one output shaft of the double-end motor through couplings, and sampling assemblies matched with the acting assemblies in a negative pressure mode are arranged on the driving-in assembly. On the basis of anchoring and turbulent flow dual stabilization measures, a rod type driving-in mode is adopted, the stratified sampling effect on bottom mud in water areas with different depths is achieved, and bottom mud collection is flexible and efficient.

Description

Technical Field

[0001] This invention belongs to the field of sampling technology, and in particular relates to an impact-type dual-channel sediment sampler. Background Technology

[0002] Mud is a substance formed by the long-term physical, chemical and biological processes of clay, sand, organic matter and various minerals, and its deposition through water transport. Its formation process involves the combined effects of surface runoff input, atmospheric deposition and biological residue deposition. When the total input exceeds the runoff output, it accumulates in low-lying areas. Based on the deposition depth, it can be divided into surface mud and deep mud.

[0003] In existing technology (patent application CN213397733U, entitled "A Sediment Sampler"), the use of a suspension rope, a weight, and a semi-circular bottom cover results in the weight blocking the bottom of the semi-circular bottom cover during the removal process after sampling. The use of a connecting block and connecting rod overcomes the drawbacks of the rope, preventing it from being affected by rapid water flow. However, in implementing this technical solution, at least the following problems were found in the existing technology: During sediment sampling, a single traction rope is mostly used, with a heavy object being lowered into the sediment area for sampling. This method is suitable for sediment collection in shallow waters. However, for sampling operations in the middle and deep layers, the water flow velocity must be considered, which can easily lead to deviation of the sampling point. This not only affects the normal sediment sampling work but also results in inaccurate sediment sampling. Summary of the Invention

[0004] This application aims to at least address the technical problem in existing technologies that prevent the use of a rod-type impact sampling method to achieve stratified sampling of bottom sediments in waters of varying depths, based on both anchoring and turbulence-based stabilization measures. To this end, this application proposes an impact-type dual-channel bottom sediment sampler.

[0005] To achieve the above objectives, the specific technical solution of the present invention is as follows: An impact-type dual-channel sediment sampler includes a floating platform, a top frame fixed on the floating platform, a bottom frame fixed at the bottom of the floating platform, and side frames longitudinally arranged on both sides of the floating platform. Additionally, positioning components are provided on both sides of the top frame, including a dual-head motor embedded in the middle of the floating platform, and driving components for use with the side frame are provided on the other two sides of the top frame. Furthermore, cylinders are fixed around the top frame, and a power-operating component is installed inside the cylinder. This component includes a central rotating gear fixed to one output shaft of a dual-head motor via a coupling, and a sampling component that is matched with the negative pressure of the power-operating component on the impact component.

[0006] Preferably, the positioning component further includes an upper main bevel gear sleeved on one output shaft of the dual-head motor, and a first upper driven bevel gear is provided on both sides of the upper main bevel gear, and a first electric push rod that rotates with the top frame is placed horizontally on the outside of the two sets of first upper driven bevel gears.

[0007] Preferably, the outer sides of the two first electric push rods are fixed with a winding frame via a rotating rod, and cables are wound on the two sets of winding frames, with positioning anchors for floating and positioning of the floating platform fastened to the ends of the two cables.

[0008] Preferably, the outer sides of the two first electric push rods are rotatably covered with a housing fixed to the top frame, and ratchet wheels are sleeved on the outer sides of the two first electric push rods. Pads that are hinged to the housing are engaged on the two sets of ratchet wheels. Compression springs that are fixed to the housing are fixed on the outer sides of the two pawls. An angle motor for releasing the pawls is fixed on the outer sides of the two sets of housings.

[0009] Preferably, the driving assembly includes second upper driven bevel gears disposed on the other two sides of the upper main bevel gear, and second electric push rods that rotate with the top frame are transversely arranged on the outer side of the two sets of second upper driven bevel gears, and drive bevel gears are fixed on the outer side of the two second electric push rods, and differential bevel gears are meshed on the outer side of the two sets of drive bevel gears.

[0010] Preferably, the two sets of differential bevel gears are longitudinally arranged with lead screws that rotate with the side frame, and the two lead screws are threaded with sleeves, and the outer sides of the two sets of sleeves are fixed with connecting parts that slide with the side frame.

[0011] Preferably, the power-operating component further includes differential gears meshing around the central rotating gear, and the bottom of the four sets of differential gears is fixed with cams by rotating rods, and connecting rods are hinged to the outside of the four sets of cams, and pistons that slide with the cylinder are hinged to the outside of the four connecting rods.

[0012] Preferably, the four sets of cylinder barrels are connected to an electric control valve on their outer side, and a threaded hose is connected to the top of the four sets of electric control valves.

[0013] Preferably, the sampling assembly includes a three-way valve connected to the inner ends of two threaded hoses and fixed to a connector, and the bottom ends of the two sets of three-way valves are connected to a connecting rod, and the bottom end of the connecting rod is connected to a sampling rod with a sampling hole.

[0014] Preferably, the two connecting rods and the sampling rod are connected to the sample storage tanks via the screwing end and the tightening end, and are kept in a state of mutual communication. The bottom end of the sampling rod is threaded with an impact head, and the bottom ends of the four sets of electrically controlled valves are threaded with the sample storage tanks.

[0015] The impact-type dual-channel sediment sampler of the present invention has the following advantages: 1. This type of impact-type dual-channel sediment sampler uses a two-sided pulling method for the positioning component. Two positioning anchors are thrown into the riverbed of the sampling area to stabilize the floating platform and prevent it from deviating from the predetermined sampling point due to excessively fast water flow. This improves the sampling accuracy of sediment at the predetermined sampling point. Furthermore, the stabilization component uses a four-way turbulence method to correct the excessive deviation of the floating platform from the water flow, forcing the floating platform to always stay at the predetermined sampling point, further improving the floating stability of the floating platform and the accuracy of sediment sampling.

[0016] 2. This type of impact-type dual-channel sediment sampler uses an impact component to drive two sets of connecting parts on the threaded sleeves through two lead screws to adjust the lifting stroke, so as to meet the impact requirements of the sediment at the collection point and prevent the sediment from being too hard and not being collected in place. It can achieve the collection effect of sediment with different softness and hardness and has low limitations.

[0017] 3. This type of impact-type dual-channel sediment sampler uses connecting rods on four sets of cams in the working component to drive four sets of pistons to reciprocate within four sets of cylinders. The negative pressure generated by the return stroke within the four sets of cylinders is transmitted to two threaded hoses through four sets of electronically controlled valves, providing negative pressure for subsequent sediment adsorption and collection. The two negative pressures are then transmitted through three-way valves that follow the two sets of connecting parts into the sediment zone, and then transmitted to the sampling rod through the connecting rod of the sampling component. After the sediment is drawn into layers by negative pressure through the sampling holes, the collected sediment is then fed back into the storage container for partitioned storage, achieving a highly efficient layered sediment sampling effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an initial state diagram of an impact-type dual-channel sediment sampler according to the present invention; Figure 2 This is a structural sampling state diagram of an impact-type dual-channel sediment sampler according to the present invention; Figure 3 This is a partial internal view of the structure of an impact-type dual-channel sediment sampler according to the present invention; Figure 4 This is a side view of the positioning component and housing structure of the present invention; Figure 5 This is a partial bottom cross-sectional view of the positioning component and housing structure of the present invention; Figure 6This is a side view of the structure of the injection component, cylinder barrel, power component, and sampling component of the present invention; Figure 7 This is a side cross-sectional view of the insertion component structure of the present invention; Figure 8 This is a bottom view of the cylinder barrel, power assembly, and sampling assembly of the present invention. Figure 9 This is an exploded cross-sectional view of the cylinder barrel, power assembly, and sampling assembly of the present invention. Figure 10 This is a top view of the stable component structure of the present invention; Figure 11 This is a partial bottom view of the structure of an impact-type dual-channel sediment sampler according to the present invention.

[0020] Explanation of markings in the diagram: 1. Floating platform; 2. Top frame; 3. Base frame; 4. Side frame; 51. Dual-head motor; 52. Upper main bevel gear; 53. First upper driven bevel gear; 54. First electric push rod; 55. Rewinding frame; 56. Cable; 57. Positioning anchor; 61. Second upper driven bevel gear; 62. Second electric push rod; 63. Drive bevel gear; 64. Differential bevel gear; 65. Lead screw; 66. Lead sleeve; 67. Connecting component; 7. Cylinder; 81. Intermediate sprocket; 82. Differential sprocket; 83. Cam; 84. 85. Connecting rod; 86. Piston; 87. Electric control valve; 98. Threaded hose; 99. Three-way valve; 90. Connecting rod; 91. Sampling rod; 92. Tightening end; 93. Sampling hole; 94. Sample storage container; 95. Displacement sensor; 106. Lower main bevel gear; 107. Lower driven bevel gear; 108. Third electric push rod; 109. Propeller; 100. Flow stabilizer; 101. Counterweight; 12. Cover; 13. Ratchet; 14. Pawl; 15. Compression spring; 16. Angle motor; 17. Impact head. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments: like Figures 1-11 As shown, an in-feed dual-channel bottom sediment sampler of the present invention includes a floating platform 1, a top frame 2 fixed on the floating platform 1, and a bottom frame 3 fixed at the bottom of the floating platform 1. Side frames 4 are longitudinally arranged on both sides of the floating platform 1. The two sets of side frames 4 are fixed to the top frame 2 by a reinforcing frame to enhance the overall stability of the two sets of side frames 4. A controller is fixed on one side of the reinforcing frame, and a battery pack with a charging port is fixed on the other side of the reinforcing frame for independent power supply of electrical components, which is convenient and quick. Additionally, positioning components are provided on both sides of the top frame 2, including a double-headed motor 51 embedded in the middle of the floating platform 1, and an upper main bevel gear 52 sleeved on one output shaft of the double-headed motor 51. A first upper driven bevel gear 53 is provided on both sides of the upper main bevel gear 52, and a first electric push rod 54 that rotates and engages with the top frame 2 is placed horizontally on the outside of the two sets of first upper driven bevel gears 53. The meshing stroke between the upper main bevel gear 52 and the first upper driven bevel gear 53 is adjusted independently or synchronously by the two first electric push rods 54. Two first electric push rods 54 are fixed to the outside of the two sets of reel frames 55 by rotating rods, and cables 56 are wound on the two sets of reel frames 55. The cables 56 are made of waterproof and corrosion-resistant materials, and the ends of the two cables 56 are snapped with positioning anchors 57 for floating and positioning the floating platform 1. The anchor head and anchor rod of the positioning anchor 57 are connected by a hinge shaft, which can firmly grip the riverbed and effectively position the floating platform 1. The positioning component pulls the two positioning anchors 57 into the riverbed of the sampling area by both sides, which can stabilize the floating platform 1 and prevent the floating platform 1 from deviating from the predetermined sampling point due to the fast water flow in the sampling area, thereby improving the sampling accuracy of the bottom sediment at the predetermined sampling point. Two first electric push rods 54 have a cover 11 fixed to the top frame 2 rotating on their outer sides. Ratchets 12 are fitted on the outer sides of the two first electric push rods 54, and pawls 13 hinged to the cover 11 are engaged on the two sets of ratchet 12. Compression springs 14 fixed to the cover 11 are fixed on the outer sides of the two pawls 13. The ratchet 12, pawls 13 and compression springs 14 provide reverse restraint measures for the two sets of winding frames 55 in the loose state. An angle motor 15 for releasing the pawls 13 is fixed on the outer sides of the two sets of cover 11. The reverse restraint measures are automatically released for the two sets of winding frames 55 that need to be rewound and reset, thereby improving the loosening and winding stability of the two sets of winding frames 55.

[0022] like Figures 6-9 As shown, the top frame 2 is equipped with a driving assembly for use with the side frame 4 on both other sides. The driving assembly includes a second upper driven bevel gear 61 on both other sides of the upper main bevel gear 52. A second electric push rod 62 that rotates with the top frame 2 is horizontally placed on the outer side of the two sets of second upper driven bevel gears 61. A drive bevel gear 63 is fixed on the outer side of the two second electric push rods 62. A differential bevel gear 64 meshes on the outer side of the two sets of drive bevel gears 63. The two second electric push rods 62 adjust the meshing stroke between the upper main bevel gear 52 and the second upper driven bevel gear 61. The upper main bevel gear 52 and the second upper driven bevel gear 61, which are in the meshing position, drive the drive bevel gear 63 and the differential bevel gear 64 to rotate at different speeds. Two sets of differential bevel gears 64 have longitudinally placed lead screws 65 that rotate with the side frame 4, and threaded sleeves 66 are threaded onto the two lead screws 65. Connecting parts 67 that slide with the side frame 4 are fixed on the outside of the two sets of threaded sleeves 66. The two sets of drive bevel gears 63 drive the two lead screws 65 to rotate at different speeds through the differential bevel gears 64. The two lead screws 65 drive the connecting parts 67 on the two sets of threaded sleeves 66 to move downwards, which meets the requirements of the bottom mud at the collection point, so as to prevent the bottom mud from being too hard and the collection from not being in place. This achieves the collection effect of bottom mud with different degrees of softness and hardness, and has low limitations.

[0023] The top frame 2 is fixed with cylinders 7 on all four sides. The cylinders 7 are equipped with a power-operating component, including a central rotating gear 81 fixed to an output shaft of a dual-head motor 51 via a coupling, and differential gears 82 meshing around the central rotating gear 81. The bottom of the four differential gears 82 is fixed with cams 83 via rotating rods. The central rotating gear 81 drives the cams 83 on the four differential gears 82 to rotate synchronously. Connecting rods 84 are hinged to the outside of the four cams 83, and pistons 85 that slide with the cylinders 7 are hinged to the outside of the four connecting rods 84. The four cams 83 drive the pistons 85 on the four connecting rods 84 to reciprocate within the four cylinders 7. During the return stroke, a negative pressure is generated within the four cylinders 7. The outer side of the four sets of cylinders 7 is connected to an electric control valve 86, and the top of the four sets of electric control valves 86 is connected to a threaded hose 87. After a negative pressure is generated in the four sets of cylinders 7, the negative pressure generated by the return work in the four sets of cylinders 7 is transmitted to the two threaded hoses 87 through the four sets of electric control valves 86. The negative pressure is then provided for subsequent bottom sediment adsorption and collection. The device also includes a sampling component that works in conjunction with the negative pressure of the working component. The sampling component includes a three-way valve 91 connected to the inner end of two threaded hoses 87 and fixed to the connector 67. The bottom ends of the two sets of three-way valves 91 are connected to a connecting rod 92, and the bottom end of the connecting rod 92 is connected to a sampling rod 93 with a sampling hole 96. Both adopt a hollow structure design, and the sampling hole 96 adopts a stepped design with a larger outer diameter and a smaller inner diameter to prevent the bottom sediment sample sucked into the sampling rod 93 from flowing back into the water through the sampling hole 96 under the influence of water flow when it rises, thus ensuring the collection volume and effectiveness of the bottom sediment sample. The two connecting rods 92 and the sampling rod 93 are connected to the sample storage tank 97 via the screw end 94 and the tightening end 95, respectively, and remain interconnected. The number of connecting rods 92 and sampling rods 93 can be adjusted according to the water depth and sediment layer thickness at the predetermined sampling point, making them easy to assemble and disassemble and highly flexible. The bottom end of the sampling rod 93 is threadedly connected to an impact head 16, which seals the sampling rod 93. The bottom ends of the four sets of electrically controlled valves 86 are threadedly connected to the sample storage tank 97, allowing for the collection and storage of the collected sediment in four separate sections, achieving efficient stratified sampling of the sediment.

[0024] like Figure 10 As shown, during sediment sampling, the floating platform 1 is prone to slight floating and shifting due to the influence of water flow velocity, making it impossible to accurately collect sediment from the designated sampling point. The stability is insufficient. The base frame 3 is equipped with stabilizing components for correcting the turbulence of the floating platform 1. The stabilizing components include displacement sensors 101 fixed at the four corners of the floating platform 1, and a lower main bevel gear 102 is sleeved on the other output shaft of the dual-head motor 51. The lower main bevel gear 102 is surrounded by lower driven bevel gears 103. A third electric push rod 104 that rotates in a sealed manner with the base frame 3 is fixed on the outside of the four sets of lower driven bevel gears 103. The four sets of displacement sensors 101 first monitor the floating offset of the floating platform 1 in four directions in real time, and one of the four third electric push rods 104 adjusts the stroke of the lower driven bevel gear 103 and the lower main bevel gear 102. The four third electric push rods 104 are fitted with propellers 105 via propeller shafts on their outer sides. The lower main bevel gear 102, with its meshing stroke adjusted to the correct position, drives the propellers 105, which are floating and deviating from their original position, to rotate and turbulent the water flow. This moves the floating platform 1 back to its original position, counteracting the water flow velocity. Flow stabilizers 106, which cover the propellers 105, are fixed around the floating platform 1 near the base frame 3. These stabilizers help to stabilize the turbulent area of ​​the propellers 105 and prevent aquatic plants from entangled or jamming the propellers 105. A counterweight 107 is fixed to the bottom of the base frame 3 to counterweight the floating platform 1 and improve its floating stability. By using a four-way turbulence method, the floating platform 1, which is floating and deviating too much, is corrected in time to the designated sampling point, achieving a stable and accurate sampling effect of bottom sediment. At the same time, it can meet the floating displacement requirements of the floating platform 1 and achieve sampling effects of bottom sediment at different sampling points, making it more flexible.

[0025] The working principle of an impact-type dual-channel bottom sediment sampler is as follows: First, control the two first electric push rods 54 to open and drive the two sets of first upper bevel gears 53 to move inward and engage with the upper main bevel gear 52. Then, control the dual-head motor 51 to open and drive the two sets of first upper bevel gears 53 to rotate in the opposite direction through the engaged upper main bevel gear 52. The two sets of winding frames 55 drive the two sets of positioning anchors 57 to be lowered to the riverbed of the predetermined sampling point water area through two cables 56 to anchor the floating platform 1. After the floating platform 1 is anchored, control the dual-head motor 51 to pause and then control the two first electric push rods 54 to close and drive the two sets of first upper bevel gears 53 to move outward and disengage from the engagement of the upper main bevel gear 52 to the initial position. Meanwhile, the two first electric push rods 54, which follow the rotation, drive the two sets of ratchet wheels 12 to rotate inside the housing 11, and drive the pawls 13 on them to perform a skipping action. The frequency compresses and releases the pressure spring 14, and the two sets of angle motors 15 are in the unlocked state for the pawls 13 that are performing the skipping action, providing reverse restriction measures for the two sets of winding frames 55 that are in the released state. If it is necessary to rewind and reset the two sets of positioning anchors 57, the two sets of angle motors 15 can drive the two pawls 13 to move outward and disengage from the two sets of ratchet wheels 12. After releasing the reverse restriction measures of the two sets of winding frames 55, the two sets of winding frames 55 are rotated forward, and the two sets of positioning anchors 57 are rewound and reset through the two cables 56. After that, the two sets of angle motors 15 drive the two sets of pawls 13 to re-lock into the two sets of ratchet wheels 12, and provide reverse restriction measures for the two sets of winding frames 55 after rewinding and reset. Meanwhile, four sets of displacement sensors 101 monitor the four-way floating displacement of the floating platform 1 in the predetermined water area at the sampling point in real time, and the counterweight block 107 applies gravity downward to the floating platform 1 to stabilize it on the water surface. When the displacement sensor 101 detects that the floating platform 1 is affected by the water flow velocity and floats severely in one direction, it controls the third electric push rod 104 at that position to open and drive the lower bevel gear 103 to move into the meshing part of the lower main bevel gear 102, while the lower bevel gear 103 on the third electric push rod 104 in the remaining three directions is in the initial position. Once disengaged, the dual-head motor 51 is restarted and driven by the engaged lower main bevel gear 102 to rotate the propeller 105 on the lower bevel gear 103 within the flow stabilizer 106, thus turbulenting the floating platform 1 in the drift direction to counteract the influence of the water flow velocity and force the floating platform 1 back to the predetermined sampling point. Similarly, the other three directions are also turbulently pushed to the predetermined sampling point. Then, the dual-head motor 51 is paused, and the third electric push rod 104 is closed and driven to move the lower bevel gear 103 outward from the engagement part of the lower main bevel gear 102 back to the initial position. After the floating platform 1 stabilizes at the designated collection point, first control the two second electric push rods 62 to open, driving the two sets of second upper bevel gears 61 to move and engage with the upper main bevel gear 52. Then control the dual-head motor 51 to reopen, and through the engaged upper main bevel gear 52, drive the two sets of drive bevel gears 63 on the second upper bevel gears 61 to rotate linearly. The two sets of drive bevel gears 63 drive the two lead screws 65 to rotate differentially through the differential bevel gear 64. The two lead screws 65 drive the connecting parts 67 on the two sets of threaded sleeves 66 to move downward. Two sets of connecting parts 67 drive two connecting rods 92, sampling rods 93, and impact head 16 downward through two sets of three-way valves 91 to impact and break into the harder bottom mud layer. Alternatively, a single second electric push rod 62 can be opened to move a connecting rod 92 and sampling rod 93 downward to impact into the bottom mud layer. When the sampling rod 93 impacts into the bottom mud and reaches the collection layer, the dual-head motor 51 is first controlled to pause, and then the single or two second electric push rods 62 are controlled to close and drive the two sets of second upper bevel gears 61 to move outward from the meshing part of the upper main bevel gear 52 to the initial position. During the process of the sampling rod 93 penetrating the bottom sediment to reach the collection layer, if the bottom sediment layer is deep, a connecting rod 92 can be added. The added single or multiple connecting rods 92 can be threadedly connected to the sampling rod 93 and the three-way valve 91 via the tightening end 95 and the screwing end 94, extending the collection depth of the sampling rod 93. Similarly, if the collection space and length of the sampling rod 93 need to be extended, the added single or multiple sampling rods 93 can be connected to the connecting rods 92. The dual-head motor 51 is continuously controlled to start, and through the intermediate rotating gear 81, it drives the cams 83 on the four sets of differential gears 82 to rotate linearly. The four sets of cams 83 drive the pistons 85 on the four connecting rods 84 to rotate in four sets of air... The cylinder 7 reciprocates and performs work, and the negative pressure generated by the return work of the four sets of pistons 85 in the four sets of cylinders 7 is transmitted through the four sets of electric control valves 86 to the threaded hose 87 that moves up and down with the two sets of three-way valves 91. Simultaneously, it is transmitted through the two sets of three-way valves 91 to the single or two connecting rods 92 and the sampling rod 93. Under the suction of the negative pressure, the bottom mud of this layer is forced to be strongly sucked in and sampled through the sampling hole 96. The collected bottom mud sample is then returned along the original path and fed into the sample storage tank 97 at the bottom of the four sets of electric control valves 86. The propeller 105 pushes the floating platform 1 to the shore, and the four sets of sample storage tanks 97 containing the bottom mud sample are unscrewed and taken out.

[0026] It should be noted that the specific models and specifications of the dual-head motor 51, the first electric push rod 54, the second electric push rod 62, the electric control valve 86, the three-way valve 91, the displacement sensor 101, the third electric push rod 104, and the angle motor 15 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0027] The power supply circuits for the dual-head motor 51, the first electric push rod 54, the second electric push rod 62, the electric control valve 86, the three-way valve 91, the displacement sensor 101, the third electric push rod 104, and the angle motor 15 are clear to those skilled in the art and will not be described in detail here.

[0028] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. An impact-type dual-channel sediment sampler, comprising a floating platform (1), characterized in that: A top frame (2) is fixed on the floating platform (1), and a bottom frame (3) is fixed at the bottom of the floating platform (1). Side frames (4) are placed longitudinally on both sides of the floating platform (1). In addition, both sides of the top frame (2) are provided with positioning components, including a double-headed motor (51) embedded in the middle of the floating platform (1), and both other sides of the top frame (2) are provided with driving components used in conjunction with the side frame (4); Furthermore, cylinder barrels (7) are fixed around the top frame (2), and a power-operating component is provided inside the cylinder barrel (7), including a rotating round gear (81) fixed to one output shaft of a double-headed motor (51) via a coupling, and a sampling component that is matched with the negative pressure of the power-operating component is provided on the impact component.

2. The impact-type dual-channel sediment sampler according to claim 1, characterized in that: The positioning assembly also includes an upper main bevel gear (52) sleeved on one output shaft of a dual-head motor (51), and a first upper driven bevel gear (53) is provided on both sides of the upper main bevel gear (52), and a first electric push rod (54) that rotates with the top frame (2) is placed horizontally on the outside of the two sets of first upper driven bevel gears (53).

3. The impact-type dual-channel sediment sampler according to claim 2, characterized in that: The outer sides of the two first electric push rods (54) are fixed with a winding frame (55) by a rotating rod, and cables (56) are wound on the two sets of winding frames (55), and the ends of the two cables (56) are fastened with positioning anchors (57) for floating and positioning of the floating platform (1).

4. The impact-type dual-channel sediment sampler according to claim 3, characterized in that: Two first electric push rods (54) have a cover (11) fixed to the top frame (2) rotating on their outer sides. Ratchets (12) are fitted on the outer sides of the two first electric push rods (54). Pads (13) hinged to the cover (11) are engaged on the two sets of ratchet wheels (12). Compression springs (14) fixed to the cover (11) are fixed on the outer sides of the two pawls (13). An angle motor (15) for releasing the pawls (13) is fixed on the outer sides of the two sets of cover (11).

5. The impact-type dual-channel sediment sampler according to claim 4, characterized in that: The drive assembly includes second upper driven bevel gears (61) disposed on the other two sides of the upper main bevel gear (52), and second electric push rods (62) that rotate with the top frame (2) are horizontally placed on the outer side of the two sets of second upper driven bevel gears (61), and drive bevel gears (63) are fixed on the outer side of the two second electric push rods (62), and differential bevel gears (64) are meshed on the outer side of the two sets of drive bevel gears (63).

6. The impact-type dual-channel sediment sampler according to claim 5, characterized in that: The two sets of differential bevel gears (64) have longitudinally placed lead screws (65) that rotate with the side frame (4), and the two lead screws (65) are threaded with sleeves (66), and the two sets of sleeves (66) are fixed with connecting parts (67) that slide with the side frame (4).

7. The impact-type dual-channel sediment sampler according to claim 6, characterized in that: The power-operating component also includes differential gears (82) meshing around the central rotating gear (81), and the bottom of the four sets of differential gears (82) is fixed with cams (83) by rotating rods, and connecting rods (84) are hinged to the outside of the four sets of cams (83), and pistons (85) that slide with the cylinder (7) are hinged to the outside of the four connecting rods (84).

8. The impact-type dual-channel sediment sampler according to claim 7, characterized in that: The four sets of cylinder barrels (7) are connected to an electric control valve (86) on the outside, and a threaded hose (87) is connected to the top of the four sets of electric control valves (86).

9. The impact-type dual-channel sediment sampler according to claim 8, characterized in that: The sampling assembly includes a three-way valve (91) connected to the inner ends of two threaded hoses (87) and fixed to a connector (67). The bottom ends of the two sets of three-way valves (91) are connected to a connecting rod (92), and the bottom end of the connecting rod (92) is connected to a sampling rod (93) with a sampling hole (96).

10. The impact-type dual-channel sediment sampler according to claim 9, characterized in that: The two connecting rods (92) and the sampling rod (93) are connected to the sample storage tank (97) through the screw end (94) and the tightening end (95) respectively, and are kept in a state of mutual communication. The bottom end of the sampling rod (93) is threadedly connected to the impact head (16), and the bottom end of the four sets of electric control valves (86) is threadedly connected to the sample storage tank (97).

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