Lake and river sedimentation particulate matter collecting device

Abstract

The utility model provides a lake and river sediment particulate matter collecting device, which belongs to the field of hydrogeological technical engineering, is used for solving the problems that in the prior art, the efficiency is low in the lake and river sediment sampling process, and interference is caused by the influence of manual operation on sediment resuspension, and comprises a collector fixing seat and a collector, the collector fixing seat is divided into the counterweight piece and the supporting fixing piece, so that the collector is kept in a vertical state in the sinking process and when the collector is fixed in lake or river sediment; the collector is divided into the collecting barrel body and the collecting barrel cover, the closed ring is arranged in the center of the top end of the collecting barrel body, the collecting barrel cover is designed into a plurality of cover bodies, the bottom ends of the cover bodies are hinged to the top end of the barrel wall of the collecting barrel body, and the top ends of the cover bodies are fixedly connected with the recycling ropes. The recovery rope drives the plurality of cover bodies to be closed at the same time, so that closing of the collection barrel cover and recovery of the device are completed, the sampling efficiency is improved, and interference caused by resuspension of bottom mud is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of hydrogeological engineering technology, and in particular relates to a device for collecting sedimentary particulate matter in lakes and rivers. Background Technology

[0002] Studies of sediment flux in lakes and rivers are crucial for assessing the distribution characteristics and ecological risks of these organisms. Sediment flux not only reflects the migration, transformation, and fate of substances in water bodies but also directly relates to the health and ecological functions of aquatic ecosystems. Therefore, accurate and efficient acquisition of sediment flux data is of great significance for evaluating the environmental quality and ecological risks of lakes and rivers.

[0003] Currently, the common method for studying sediment flux in lakes and rivers relies on divers fixing sediment traps to the sediment using supports. While this method can collect sediments to some extent, it has several drawbacks. First, the operation requires significant manpower and time, resulting in low sampling efficiency. This is especially true in large, deep-water lakes and rivers, where the difficulty and danger of the operation increase considerably, further limiting the widespread application of this method. Second, the human operation process affects the water flow around the trap. During the installation and retrieval of the trap, divers inevitably disturb the water, affecting the settling process of suspended particles. This disturbance not only reduces the representativeness of the sediment sample but may also introduce additional errors, affecting the accuracy of the research results. Furthermore, traditional sediment traps can resuspend sediment during fixation and retrieval. Resuspension of sediment releases large amounts of particulate matter and dissolved substances, further interfering with sediment flux measurements. This not only increases the uncertainty of the research but may also have potential negative impacts on the ecological environment of lakes and rivers.

[0004] In summary, current methods for studying lake and river sediment fluxes suffer from problems such as low sampling efficiency, significant human intervention, and sediment resuspension interference. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a lake and river sedimentation particulate matter collection device to solve the problems of low efficiency in the sampling process of lake and river sediments and interference caused by human operation affecting the resuspension of bottom sediments in the prior art.

[0006] To achieve the above and other related objectives, this utility model provides a lake and river sedimentation particulate matter collection device, including a collector, which includes a collection cylinder and a collection cylinder cover;

[0007] A closed ring is arranged at the center of the top of the collection cylinder;

[0008] The collection cylinder cover includes a cover body, a cover body counterweight, and a retrieval rope; there are multiple cover bodies, and their bottom ends are respectively hinged to the top of the cylinder wall of the collection cylinder body, forming a conical collection cylinder cover when closed; the top ends of the multiple cover bodies are respectively fixedly connected to the retrieval rope; the tail end of the retrieval rope is fixedly connected to the cover body counterweight, which is used to drive the cover body to open; the head end of the retrieval rope passes through the closing ring and extends beyond the water surface, which is used to drive the cover body to close and complete the retrieval of the device.

[0009] Optionally, a guide ring is fixedly connected to the side wall of the collection cylinder; the tail end of the recovery rope passes through the guide ring and is fixedly connected to the counterweight of the cover.

[0010] Optionally, the counterweight of the cover is a counterweight ball.

[0011] Optionally, a vertically arranged connecting sleeve is fixedly connected to the center of the bottom wall of the collecting cylinder, a sleeve rod is fixedly connected inside the connecting sleeve, and the closing ring is fixedly connected to the top of the sleeve rod.

[0012] Optionally, a closed-loop support rod is fixedly connected to the top of the collecting cylinder. There are multiple closed-loop support rods, one end of which is fixedly connected to the top of the cylinder wall of the collecting cylinder, and the other end is fixedly connected to the closed loop.

[0013] Optionally, it also includes a collector fixing base; the collector fixing base is fixedly connected to the bottom end of the collector and includes a counterweight and a support fixing member; the counterweight is fixedly connected to the center of the support fixing member and is fixedly connected to the bottom end of the collector through the support fixing member.

[0014] Optionally, the support and fixing member includes a support rod, a fixing rod, and a connecting ring;

[0015] The support rods are arranged horizontally and fixedly connected in sequence to form a hollow support structure;

[0016] The fixing rod is arranged vertically on the fixing connection of the support rod, and the bottom end is a sharp protrusion structure;

[0017] The connecting ring is arranged horizontally and connected to the support rod by a connecting rod, and is fixedly connected to the center of the support structure by the connecting rod.

[0018] Optionally, the bottom end of the side wall of the collecting cylinder extends downward and is detachably connected to the top end of the connecting ring.

[0019] Optionally, the counterweight is a hemispherical structure with a downward protrusion, and the top of the counterweight is detachably connected to the bottom of the connector.

[0020] As described above, the present invention provides a lake and river sedimentation particulate matter collection device with at least the following beneficial effects:

[0021] This invention disassembles a lake and river sedimentation particulate matter collection device into a collector fixing base and a collector. The collector fixing base is further divided into a counterweight and a support fixing component. The counterweight ensures that the collector remains vertical during descent, while the support fixing component ensures that the collector remains vertical in the lake or river sediment. The collector is further divided into a collection cylinder and a collection cylinder cover. A closing ring is arranged at the center of the top of the collection cylinder. The collection cylinder cover is divided into multiple covers, the bottom ends of which are hinged to the top of the cylinder wall. A retrieval rope is fixedly connected to the top of each cover. The retrieval rope and the closing ring work together to control the closing of the collection cylinder cover. This design allows the closing of the collection cylinder cover to be controlled remotely (using the retrieval rope to drive multiple covers to close simultaneously) without the need for direct intervention by divers. This greatly reduces the interference of human operation on the aquatic environment and also reduces the workload and potential risks for divers.

[0022] This invention disassembles the support and fixing component into a support rod, a fixing rod, and a connecting ring. The hollow support and fixing component effectively reduces water resistance during descent. The sharp protrusion at the bottom of the fixing rod can more effectively penetrate the bottom sediment of lakes or rivers, ensuring that the device is not easily loosened or shifted when fixed, thereby improving the accuracy of collection. The connecting ring is detachably connected to the counterweight and the collection cylinder, facilitating sample processing and device recovery after sampling. The counterweight is designed in a hemispherical shape, which not only provides sufficient counterweight to ensure that the collector remains vertical during descent, avoiding tilting or rolling caused by water flow interference (similar to a roly-poly toy), but also has a good streamlined feature that effectively reduces water resistance, helping the device to reach the target depth more smoothly.

[0023] This invention features a guide ring installed on the side wall of the collection cylinder, combined with a fixed connection between the recovery rope and the top of the cover. One end of the recovery rope passes through the guide ring and connects to the counterweight of the spherical cover. After the device is fixed to the bottom sediment, the cover flips outward under the gravity of the counterweight, thus opening the collection cylinder cover and starting the collection of sedimented particulate matter from lakes and rivers. This design simplifies the operation process. At the same time, after the collection is completed, the cover can be stably closed by the traction of the recovery rope, effectively preventing leakage problems that may occur during the floating of the collected particulate matter. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the counterweight of this utility model;

[0026] Figure 3 This is a structural schematic diagram of the support and fixing component of this utility model;

[0027] Figure 4 This is a cross-sectional view of the overall structure of the collector of this utility model.

[0028] Component designation explanation

[0029] 1. Counterweight; 2. Support and fixing components; 201. Support rod; 202. Fixing rod; 203. Connecting ring; 3. Collection cylinder; 301. Guide ring; 302. Connecting sleeve; 303. Sleeve rod; 4. Collection cylinder cover; 5. Closing ring; 6. Cover counterweight; 7. Recovery rope. Detailed Implementation

[0030] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0031] Please see Figures 1 to 4 It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0032] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0033] Please see Figures 1 to 4This utility model provides a device for collecting sedimented particulate matter in lakes and rivers, including a collector fixing base and a collector; the collector fixing base is fixedly connected to the bottom end of the collector and includes a counterweight 1 and a support fixing member 2; the counterweight 1 is fixedly connected to the center of the support fixing member 2 and is fixedly connected to the bottom end of the collector through the support fixing member 2; the support fixing member 2 vertically fixes the collector to the bottom of the water body; the collector includes a collection cylinder 3 and a collection cylinder cover 4; a closing ring 5 is arranged at the center of the top of the collection cylinder 3; the collection cylinder cover 4 includes a cover body, a cover body counterweight 6, and a recovery rope 7; there are multiple covers, and their bottom ends are respectively hinged. At the top of the collecting cylinder 3, a conical collecting cylinder cover 4 is formed when closed. The tops of multiple covers are respectively fixedly connected to a retrieval rope 7. The tail end of the retrieval rope 7 is fixedly connected to a counterweight 6 of the cover, used to drive the cover to open. The head end of the retrieval rope 7 passes through the closing ring and extends beyond the water surface, used to drive the cover to close and complete the device retrieval. (The connection between the collecting cylinder cover 4 and the top of the collecting cylinder 3 in the figure is square, and the following explanation will use a square as an example. The number of covers is not limited here.) The collecting cylinder cover 4 includes four covers, the bottom ends of which are respectively hinged to the sides of the square connection opening, and the top ends of which are respectively... A recovery rope 7 is fixedly connected, and the closing of the collection cylinder cover 4 is controlled by the cooperation of the recovery rope 7 and the closing ring 5. This application disassembles the lake and river sedimentation particulate matter collection device into a collector fixing base and a collector, and further disassembles the collector fixing base into a counterweight 1 and a support fixing component 2. The counterweight 1 ensures that the collector remains vertical during the sinking process, and the support fixing component 2 ensures that the collector remains vertical when it is in the bottom sediment of the lake or river. The collector is disassembled into a collection cylinder 3 and a collection cylinder cover 4, and a closing ring 5 is arranged in the center of the top of the collection cylinder 3. The connection port between the collection cylinder cover 4 and the top of the collection cylinder 3 is designed as a square, and the four covers are arranged in a square shape. The bottom ends are hinged to the sides of the square connection port, and the top ends are fixedly connected to the retrieval ropes 7. The retrieval ropes 7, in conjunction with the cover counterweights 6, control the opening of the collection cylinder cover 4. The retrieval ropes 7 and the closing rings 5 ​​control the closing of the collection cylinder cover 4. This design allows the opening and closing of the collection cylinder cover 4 to be controlled remotely without the need for direct intervention from the diver (when the device is in use, the cover counterweights 6, in conjunction with the retrieval ropes 7, drive the four covers to open; when the device is being retrieved, the retrieval ropes 7 drive the four covers to close simultaneously). This greatly reduces the interference of human operation on the aquatic environment, and also reduces the workload and potential risks for divers.

[0034] In this embodiment, please refer to Figure 1 and Figure 2The counterweight 1 is a hemispherical structure (the counterweight 1 can also be designed as a ring or other shapes), and the protrusion is arranged downwards; the top of the counterweight 1 is detachably connected to the middle of the support fixing member 2 (i.e., detachably connected to the connecting ring 203). By designing the counterweight 1 as a hemispherical shape, this application not only provides sufficient counterweight to ensure that the collector can remain vertical during the sinking process, avoiding tilting or rolling phenomena caused by water flow interference (refer to a roly-poly toy), but also the hemispherical counterweight 1 has good streamlined characteristics, which effectively reduces water resistance and helps the device reach the target depth more smoothly.

[0035] In this embodiment, please refer to Figure 1 and Figure 3 The supporting fastener 2 includes a supporting rod 201, a fixing rod 202, and a connecting ring 203. The supporting rod 201 is horizontally arranged and sequentially fixedly connected to form a hollow supporting structure. The fixing rod 202 is vertically arranged at the fixed connection of the supporting rod 201, and its bottom end is a sharp protrusion. The connecting ring 203 is horizontally arranged and connected to the supporting rod 201 by a connecting rod, and is fixedly connected to the center of the supporting structure through the connecting rod. This application splits the supporting fastener 2 into a supporting rod 201, a fixing rod 202, and a connecting ring 203. The hollow supporting fastener 2 can effectively reduce its own water resistance during descent. The sharp protrusion at the bottom end of the fixing rod 202 can more effectively penetrate the bottom mud of lakes or rivers, ensuring that the device is not easy to loosen or shift when fixed, thereby improving the accuracy of collection. The connecting ring 203 is detachably connected to the counterweight 1 to facilitate the recovery of the device after sampling.

[0036] In this embodiment, please refer to Figure 1 and Figure 4 The bottom end of the side wall of the collection cylinder 3 extends downward and is detachably connected to the middle part of the support and fixing member 2 (i.e., detachably connected to the connecting ring 203). This application facilitates sample processing after sampling by detachably connecting the collection cylinder 3 to the connecting ring 203 in the middle part of the support and fixing member 2.

[0037] In this embodiment, please refer to Figure 1 and Figure 4The side wall of the collection cylinder 3 is fixedly connected to a guide ring 301; the tail end of the recovery rope 7 passes through the guide ring 301 and is fixedly connected to the cover counterweight 6, and the head end passes through the closing ring 5 and extends beyond the water surface (the recovery rope extending beyond the water surface can be tied to a float, boat hull, or shore, etc.). The cover counterweight 6 is a counterweight ball. The collection cylinder 3 located between the cover and the guide ring 301 has an outward protrusion to ensure that there is an angle between the cover and the recovery rope 7. When the cover is subjected to the tension of the tail end of the recovery rope 7, it can be decomposed to form an outward flipping force, ensuring that the cover flips open. This application achieves this through collection A guide ring 301 is installed on the side wall of the cylinder 3, and combined with the fixed connection design between the recovery rope 7 and the top of the cover, the tail end of the recovery rope 7 passes through the guide ring 301 and is connected to the spherical cover counterweight 6. After the device is fixed on the bottom sediment, the cover flips outward under the gravity of the spherical cover counterweight 6, thereby opening the collection cylinder cover 4 and starting the collection of sedimented particulate matter from lakes and rivers. This design simplifies the operation process. At the same time, when the collection is completed, the cover can be stably closed by the traction of the recovery rope 7, effectively preventing leakage problems that may occur during the floating of the collected particulate matter.

[0038] In this embodiment, please refer to Figure 1 and Figure 4 A vertically arranged connecting sleeve 302 is fixedly connected to the center of the bottom wall of the collecting cylinder 3. A sleeve rod 303 is fixedly connected inside the connecting sleeve 302. The closing ring 5 is fixedly connected to the top of the sleeve rod 303. This application completes the support and fixation of the closing ring 5 by adding a connecting sleeve 302 and a sleeve rod 303 to the center of the bottom wall of the collecting cylinder 3. The detachable and replaceable sleeve rod 303 can also adjust the height of the closing ring 5 relative to the collecting cylinder 303 to meet the needs of collecting cylinders 303 of different heights.

[0039] In this embodiment, a closed ring support rod is fixedly connected to the top of the collecting cylinder 3. There are multiple closed ring support rods. One end of each closed ring support rod is fixedly connected to the top of the cylinder wall of the collecting cylinder 3, and the other end is fixedly connected to the closed ring 5. This application completes the support and fixation of the closed ring 5 by adding multiple closed ring support rods. Moreover, the closed ring support rods also increase the support strength of the top of the collecting cylinder 3.

[0040] In summary, this utility model overcomes the various shortcomings of the prior art.

[0041] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A device for collecting sedimentary particulate matter from lakes and rivers, characterized in that: Includes a collector, the collector comprising a collection cylinder and a collection cylinder cover; A closed ring is arranged at the center of the top of the collection cylinder; The collection cylinder cover includes a cover body, a cover body counterweight, and a retrieval rope; there are multiple cover bodies, and their bottom ends are respectively hinged to the top of the cylinder wall of the collection cylinder body, forming a conical collection cylinder cover when closed; the top ends of the multiple cover bodies are respectively fixedly connected to the retrieval rope; the tail end of the retrieval rope is fixedly connected to the cover body counterweight, which is used to drive the cover body to open; the head end of the retrieval rope passes through the closing ring and extends beyond the water surface, which is used to drive the cover body to close and complete the retrieval of the device.

2. The lake and river sedimentation particulate matter collection device according to claim 1, characterized in that: A guide ring is fixedly connected to the side wall of the collection cylinder; the tail end of the recovery rope passes through the guide ring and is fixedly connected to the counterweight of the cover.

3. The lake and river sedimentation particulate matter collection device according to claim 1, characterized in that: The counterweight component of the cover is a counterweight ball.

4. The lake and river sedimentation particulate matter collection device according to claim 1, characterized in that: A vertically arranged connecting sleeve is fixedly connected to the center of the bottom wall of the collecting cylinder, and a sleeve rod is fixedly connected inside the connecting sleeve. The closing ring is fixedly connected to the top of the sleeve rod.

5. The lake and river sedimentation particulate matter collection device according to claim 1, characterized in that: A closed-loop support rod is fixedly connected to the top of the collecting cylinder. There are multiple closed-loop support rods, one end of which is fixedly connected to the top of the cylinder wall of the collecting cylinder, and the other end is fixedly connected to the closed loop.

6. The lake and river sedimentation particulate matter collection device according to claim 1, characterized in that: It also includes a collector mounting base; the collector mounting base is fixedly connected to the bottom end of the collector and includes a counterweight and a support fixing component; the counterweight is fixedly connected to the center of the support fixing component and is fixedly connected to the bottom end of the collector through the support fixing component.

7. The lake and river sedimentation particulate matter collection device according to claim 6, characterized in that: The supporting fastener includes a support rod, a fixing rod, and a connecting ring; The support rods are arranged horizontally and fixedly connected in sequence to form a hollow support structure; The fixing rod is arranged vertically on the fixing connection of the support rod, and the bottom end is a sharp protrusion structure; The connecting ring is arranged horizontally and connected to the support rod by a connecting rod, and is fixedly connected to the center of the support structure by the connecting rod.

8. The lake and river sedimentation particulate matter collection device according to claim 7, characterized in that: The bottom end of the side wall of the collecting cylinder extends downward and is detachably connected to the top end of the connecting ring.

9. The lake and river sedimentation particulate matter collection device according to claim 7, characterized in that: The counterweight is a hemispherical structure with a downward protrusion, and the top of the counterweight is detachably connected to the bottom of the connector.

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