Liftable automatic sampling device for reservoir sediment monitoring

Abstract

The utility model discloses a liftable automatic sampling device for reservoir sediment monitoring. The liftable automatic sampling device comprises two ship bodies which are symmetrically arranged, a door-shaped bracket which is fixedly arranged between the two ship bodies, and a sampling pipe, a lifting plate is arranged between two stand columns of the n-shaped support, a cylindrical support is arranged in the middle of the bottom face of the lifting plate, the sampling pipe is coaxially and fixedly arranged on the cylindrical support in a sleeving mode through an annular lock catch, and a vibrator is arranged on the upper surface of the lifting plate; a winch is arranged on the upper portion of the n-shaped support, a hanging lug is arranged in the middle of the vibrator, and a rope on the winch is connected with the hanging lug. According to the sampling device, double hulls are used as sampling carriers, the n-shaped bracket is used for supporting and guiding the sampling pipe, the sampling pipe is automatically and vertically inserted into sediment at the water bottom along the bracket for sampling by virtue of the vibration force of the vibrator, and meanwhile, the winch is used for automatically and upwards pulling and lifting the sampling pipe; high-maneuverability and high-efficiency automatic sampling of sediments is realized, so that the device can be suitable for continuous sampling operation of large-area reservoirs.

Description

Technical Field

[0001] This utility model relates to the field of reservoir sediment monitoring, and in particular to a liftable automatic sampling device for reservoir sediment monitoring. Background Technology

[0002] Reservoir sediment monitoring is mainly used to analyze the content and distribution of pollutants such as heavy metals, pesticide residues, and organic matter in sediments, assess the water pollution status and ecological risks of reservoirs, and study the grain size, mineral composition, and sedimentation rate of sediments to reveal the geological evolution process of reservoirs, sediment deposition patterns, and watershed erosion intensity.

[0003] Sediment sampling is usually carried out using gravity samplers, which use their own gravity to cut into the sediment surface and collect columnar samples of 0.5-2 meters.

[0004] Current gravity samplers mainly consist of a handle and a sampling tube. The tube is connected to the handle, and a vibration device is installed on the handle. The sampler inserts the sampling tube into the water bottom by holding the handle. The vibration force of the device propels the sampling tube into the sediment at the bottom of the water, thus achieving sampling. This manual, handheld sampling method is labor-intensive and inefficient, making it unsuitable for continuous sampling operations in large reservoirs and requiring improvement. Utility Model Content

[0005] To address the aforementioned problems, this invention proposes a liftable automatic sampling device for monitoring sediments in reservoirs.

[0006] The technical solution of this utility model is as follows: a liftable automatic sampling device for monitoring sediments in a reservoir, comprising two symmetrically arranged hulls, a portal-shaped support fixedly installed between the two hulls, and a sampling tube; the sampling tube is made of transparent plastic or glass; a lifting plate is provided between the two columns of the portal-shaped support, the lifting plate being a square plate, with a U-shaped notch at the end of the lifting plate slidingly engaging with the column, the size of the U-shaped notch matching the cross-sectional size of the column; a cylindrical support is provided in the middle of the bottom surface of the lifting plate, with a main airflow channel inside the cylindrical support, the main airflow channel being a blind hole; two radial channels are connected to the upper end of the main airflow channel, symmetrically arranged on the cylindrical support; the sampling tube is coaxially fixedly fitted onto the cylindrical support by a ring lock; a vibrator, which is a vibration motor, is provided on the upper surface of the lifting plate; a traction mechanism is provided on the upper part of the portal-shaped support.

[0007] Preferably, the traction mechanism is a winch, and the vibrator housing has a lug in the middle, with the rope on the winch connected to the lug.

[0008] Preferably, a diagonal bracing beam is provided between the upper part of the column and the hull, the two diagonal bracing beams are arranged in parallel to each other, the lower ends of the two diagonal bracing beams are connected to the two hulls through a horizontal bracing beam, the end of the horizontal bracing beam is fixedly connected to the inner side of the hull, and a seat plate is provided between the upper ends of the two diagonal bracing beams, and the winch is fixedly installed on the seat plate.

[0009] Preferably, the bottom surface of the top rod of the portal frame is provided with a guide groove wheel. The guide groove wheel is connected to the top rod through a U-shaped support. The rope passes through the guide groove wheel and is connected to the hanging ear. The rope then wraps around the guide groove wheel.

[0010] Preferably, the two hulls are fixedly connected as one unit by a square frame, with a certain distance between the two hulls. A platform plate is provided between the two horizontal bars at the end of the square frame, and the column is vertically fixed to the platform plate. The platform plate provides support for the column, thereby supporting the U-shaped bracket. A circular through hole is provided in the middle of the platform plate, and the sampling tube is directly opposite the through hole. The size of the sampling tube is larger than the size of the through hole.

[0011] Preferably, two angle iron rods are arranged side by side in the middle of the two horizontal bars at the end of the square frame, and the platform plate is fixedly connected between the angle iron rods. The angle iron rods are vertically fixed between the horizontal bars and the platform plate.

[0012] The beneficial technical effects of this utility model are as follows: This utility model uses a double hull as a sampling carrier and a portal frame to provide support and guidance for the sampling tube. The sampling tube is automatically slid vertically along the frame and inserted into the sediment at the bottom of the water for sampling by relying on the vibration force of the vibrator. At the same time, a winch is used to automatically pull the sampling tube upward, which effectively solves the drawbacks of manual sampling and realizes highly mobile and efficient automatic sampling of sediments, making it suitable for continuous sampling operations in large-area reservoirs. Attached Figure Description

[0013] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model;

[0014] Figure 2 This is the second three-dimensional structural schematic diagram of this utility model;

[0015] Figure 3 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 4 A three-dimensional structural diagram of this utility model after the hull has been removed;

[0017] Figure 5 It is a three-dimensional structural diagram of the vibrator, lifting plate, and sampling tube;

[0018] Figure 6 This is a three-dimensional structural diagram of the lifting platform.

[0019] In the diagram, 1. Hull, 11. Square frame, 111. Horizontal bar, 12. Platform plate, 121. Through hole, 13. Angle iron rod, 14. Column, 15. Top rod, 16. Diagonal brace beam, 17. Horizontal brace beam, 18. Seat plate, 19. Guide groove wheel, 2. Lifting plate, 21. Cylindrical support, 22. U-shaped notch, 231. Main airflow channel, 232. Radial channel, 24. Vibrator, 241. Hanging lug, 3. Sampling tube, 31. Ring lock, 4. Winch, 41. Rope. Detailed Implementation

[0020] Example 1, see appendix Figure 1-5 A liftable automatic sampling device for monitoring reservoir sediments includes two symmetrically arranged hulls 1, a portal frame fixed between the two hulls 1, and a sampling tube 3. A lifting plate 2 is provided between the two columns 14 of the portal frame. The end of the lifting plate 2 has a U-shaped notch 22 that slides onto the column 14. The lifting plate 2 is slidably connected between the two columns 14 through the U-shaped notches 22 at both ends, allowing it to rise and fall vertically along the two columns 14. A cylindrical support 21 is provided in the middle of the bottom surface of the lifting plate 2. A main airflow channel 231 is provided inside the cylindrical support 21. The main airflow channel flows from the bottom surface of the cylindrical support body... The shaft extends into the cylindrical support 21. The upper end of the main airflow channel 231 is connected to a radial channel 232 that penetrates the cylindrical support 21. The sampling tube is connected to the main airflow channel 231. The main airflow channel 231 is connected to the external atmosphere through the radial channel 232. After the sediment enters the sampling tube, it can compress the internal air and discharge it from the airflow channel, ensuring that the sediment can smoothly enter the sampling tube. The sampling tube 3 is coaxially fixed on the cylindrical support 21 by the annular lock 31. The sampling tube 3 can be easily disassembled or installed by the annular lock 31. The upper surface of the lifting plate 2 is provided with a vibrator 24.

[0021] The upper part of the portal frame is equipped with a traction mechanism, which is a winch 4. The middle part of the vibrator 24 is equipped with a hanging ear 241. The rope 41 on the winch 4 is connected to the hanging ear 241. The vibrator 24 is fixedly connected to the lifting plate 2 by bolts. The winch 4 can pull the vibrator 24 and the lifting plate 2 to move synchronously.

[0022] A diagonal bracing beam 16 is provided between the upper part of the column 14 and the hull 1. The lower ends of the two diagonal bracing beams 16 are connected to the two hulls 1 through the horizontal bracing beams 17. The diagonal bracing beams 16 are used to assist in supporting the portal frame bracket, forming a triangular support structure, which improves its installation stability on the hull 1. A seat plate 18 is provided between the upper ends of the two diagonal bracing beams 16, and the winch 4 is installed on the seat plate 18.

[0023] The bottom surface of the top rod 15 of the portal frame is provided with a guide groove wheel 19. After the rope 41 passes through the guide groove wheel 19, it is connected to the hanging ear 241. The guide groove wheel 19 makes the rope 41 vertical and connect it to the hanging ear 241 of the vibrator 24, converting the pulling force of the winch 4 into a vertical pulling force, so that the vibrator 24 and the lifting plate 2 can slide smoothly along the two columns 14.

[0024] When the automatic sampling device of this embodiment performs sampling operations, it uses the double hull 1 as a sampling carrier to carry the sampling device into the central area of ​​the reservoir. After reaching the sampling position, the winch 4 is started to release the rope 41. The rope 41 loses its tension on the lifting plate 2. At the same time, the vibrator 24 is started to generate vibration force. The vibration force drives the lifting plate 2 to slide vertically along the portal frame. The portal frame provides vertical guidance for the sampling tube. The sampling tube slides vertically into the sediment at the bottom of the water for sampling. Then, the winch 4 automatically pulls the sampling tube upward and lifts it. The ring lock 31 is opened to disassemble the sampling tube and take out the columnar sediment sample inside. This sampling method enables continuous and efficient sampling operations in a large area of ​​reservoir.

[0025] Example 2, see appendix Figure 1 , 3 -4. This embodiment is basically the same as embodiment one, and the similarities will not be repeated. The difference is that the two hulls 1 are fixedly connected as one body by a square frame 11. A platform plate 12 is provided between the two horizontal bars 111 at the end of the square frame 11. Two angle iron bars 13 are arranged side by side in the middle of the two horizontal bars 111 at the end of the square frame 11. The platform plate 12 is fixedly connected between the four angle iron bars 13. The platform plate 12 is fixedly connected to the square frame 11 by the angle iron bars 13. The platform plate 12 is fixedly connected to the hull 1 as one body.

[0026] The column 14 is vertically and fixedly connected to the platform plate 12. The platform plate 12 has a through hole 121 in the middle, and the sampling tube 3 is directly opposite the through hole 121. As the sampling tube moves downward along the two columns 14 via the lifting plate 2, the platform plate 12 provides auxiliary guiding support for the sampling tube through the through hole 121, ensuring that the sampling tube can be inserted vertically into the bottom of the water. At the same time, the platform plate 12 acts as a fixed support plate to support the portal frame, improving the stability of the portal frame on the hull 1.

Claims

1. A liftable automatic sampling device for monitoring sediments in reservoirs, characterized in that: The system includes two symmetrically arranged hulls, a portal-shaped support fixed between the two hulls, and a sampling tube. A lifting plate is provided between the two columns of the portal-shaped support. The end of the lifting plate has a U-shaped notch that slides and connects to the column. A cylindrical support is provided in the middle of the bottom surface of the lifting plate. The cylindrical support has a main airflow channel inside. The upper end of the main airflow channel is connected to a radial channel that radially penetrates the cylindrical support. The sampling tube is coaxially fixed to the cylindrical support by a ring lock. A vibrator is provided on the upper surface of the lifting plate. A traction mechanism is provided on the upper part of the portal-shaped support.

2. The liftable automatic sampling device for monitoring reservoir sediments according to claim 1, characterized in that: The traction mechanism is a winch, and the vibrator has a lug in the middle, with the rope on the winch connected to the lug.

3. The liftable automatic sampling device for monitoring reservoir sediments according to claim 2, characterized in that: The upper part of the column and the hull are provided with diagonal bracing beams. The lower ends of the two diagonal bracing beams are connected to the two hulls through cross bracing beams. A seat plate is provided between the upper ends of the two diagonal bracing beams, and the winch is installed on the seat plate.

4. The liftable automatic sampling device for monitoring reservoir sediments according to claim 3, characterized in that: The bottom surface of the top rod of the portal frame is provided with a guide groove wheel, and the rope is connected to the hanging ear after passing through the guide groove wheel.

5. The liftable automatic sampling device for monitoring reservoir sediments according to claim 1, characterized in that: The two hulls are fixedly connected as one unit by a square frame. A platform plate is provided between the two horizontal bars at the end of the square frame. The column is fixedly connected to the platform plate vertically. A through hole is provided in the middle of the platform plate, and the sampling tube is directly opposite the through hole.

6. The liftable automatic sampling device for monitoring reservoir sediments according to claim 5, characterized in that: Two angle iron rods are arranged side by side in the middle of the two horizontal bars at the end of the square frame, and the platform plate is fixedly connected between the angle iron rods.

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