CN-224231368-U - Lake and river sedimentation particulate matter collecting device

CN224231368UCN 224231368 UCN224231368 UCN 224231368UCN-224231368-U

Abstract

The utility model provides a lake and river sediment particulate matter collecting device, belongs to the field of hydrogeological engineering, and is used for solving the problems of low efficiency and interference caused by the influence of manual operation on sediment re-suspension in a lake and river sediment sampling process in the prior art, and comprises a collector fixing seat and a collector; the utility model ensures that the collector keeps a vertical state in the sinking process and when fixed in the bottom mud of a lake or river by splitting the collector into the counterweight part and the supporting and fixing part, designs the collector into the collecting cylinder body and the collecting cylinder cover, and arranges the closed ring at the center of the top end of the collecting cylinder body, designs the collecting cylinder cover into a plurality of cover bodies, wherein the bottom ends of the cover bodies are respectively hinged at the top ends of the cylinder walls of the collecting cylinder body, the top ends are respectively fixedly connected with the recovery ropes, and the recovery ropes drive the plurality of cover bodies to be simultaneously closed by matching the recovery ropes with the closed ring when the collector is retracted, thereby completing the closing of the collecting cylinder cover and the recovery of the device, improving the sampling efficiency and reducing the interference caused by the resuspension of the bottom mud.

Inventors

WANG LIJING
LI YINGJIE
LI HONG
ZHU YANZHONG
ZHOU JUAN
ZHAO YANMIN
YANG CHENCHEN

Assignees

中国环境科学研究院

Dates

Publication Date: 20260512
Application Date: 20250625

Claims (9)

1. The device for collecting the sedimentary particles in the lakes and rivers is characterized by comprising a collector, wherein the collector comprises a collecting cylinder body and a collecting cylinder cover; a closed ring is arranged at the center of the top end of the collecting cylinder; The collecting cylinder cover comprises a plurality of cover bodies, cover body weight pieces and a recovery rope, wherein the bottom ends of the cover bodies are respectively hinged to the top ends of cylinder walls of the collecting cylinder, a conical collecting cylinder cover is formed by encircling the cover bodies when the collecting cylinder cover is closed, the top ends of the cover bodies are respectively fixedly connected with the recovery rope, the tail ends of the recovery rope are fixedly connected with the cover body weight pieces and used for driving the cover bodies to open, and the head ends of the recovery rope penetrate through the closed ring and extend out of the water surface and are used for driving the cover bodies to be closed to complete recovery of the device.
2. The lake and river settled particulate matter collecting device of claim 1, wherein the side wall of the collecting cylinder is fixedly connected with a guide ring, and the tail end of the recovery rope penetrates through the guide ring and is fixedly connected with the cover body counterweight.
3. The device for collecting settled particles in lakes and rivers according to claim 1, wherein the cover weight member is a weight ball.
4. The device for collecting the settled particles in the lakes and rivers according to claim 1, wherein a connecting sleeve is fixedly connected to the center of the bottom wall of the collecting cylinder body, a sleeve rod is fixedly connected to the connecting sleeve, and the closed ring is fixedly connected to the top end of the sleeve rod.
5. The device for collecting the settled particles in the lakes and rivers according to claim 1, wherein the top end of the collecting cylinder is fixedly connected with a plurality of closed-loop supporting rods, one ends of the closed-loop supporting rods are fixedly connected to the top end of the cylinder wall of the collecting cylinder, and the other ends of the closed-loop supporting rods are fixedly connected to the closed loop.
6. The lake and river settled particulate matter collecting device of claim 1, further comprising a collector fixing seat, wherein the collector fixing seat is fixedly connected to the bottom end of the collector and comprises a counterweight piece and a supporting and fixing piece, and the counterweight piece is fixedly connected to the center of the supporting and fixing piece and is fixedly connected to the bottom end of the collector through the supporting and fixing piece.
7. The device for collecting the settled particles in the lakes and rivers according to claim 6, wherein the supporting and fixing member comprises a supporting rod, a fixing rod and a connecting ring; The support rods are horizontally arranged and sequentially fixedly connected to form a hollowed-out support structure; The fixing rod is vertically arranged on the fixing connection of the supporting rod, and the bottom end of the fixing rod is of a sharp convex structure; The connecting ring is horizontally arranged and connected with the supporting rod, and is fixedly connected to the center of the supporting structure through the connecting rod.
8. The device for collecting the settled particles in lakes and rivers according to claim 7, wherein the bottom end of the side wall of the collecting cylinder extends downwards and is detachably connected with the top end of the connecting ring.
9. The device for collecting particles in a lake and river settling of claim 7, wherein the weight member has a hemispherical structure and is provided with a downward bulge, and the top end of the weight member is detachably connected with the bottom end of the connecting member.

Description

Lake and river sedimentation particulate matter collecting device Technical Field The utility model belongs to the technical field of hydrogeological engineering, and particularly relates to a device for collecting sediments and particulates in lakes and rivers. Background Lake and river sediment flux research is the key point of lake and river material distribution characteristics and ecological risk evaluation. Sediment flux not only reflects the migration, transformation and hosting processes of substances in the water body, but also directly relates to the health state and the exertion of ecological functions of the water ecological system. Therefore, accurately and efficiently acquiring sediment flux data is of great importance for assessing environmental quality and ecological risk of lakes and rivers. Currently, common lake and river sediment flux research methods rely on divers securing sediment traps in sediment by brackets. Although this approach can achieve deposit collection to some extent, there are a number of disadvantages. First, the diver's operations require a lot of manpower and time, resulting in inefficient sampling. Particularly in lakes and rivers in large-area and deep-water areas, the operation difficulty and the danger of divers are greatly increased, the wide application of the method is further limited, and secondly, the motion state of water flow around the collector can be influenced in the manual operation process. Divers can inevitably disturb the body of water during installation and recovery of the trap, thereby affecting the settling process of suspended particles. Such disturbances not only lead to a reduction in the representativeness of the sediment sample, but may introduce additional errors that affect the accuracy of the results of the study, and in addition, conventional sediment traps may have a re-suspension effect on the sediment during the fixing and recovery process. The re-suspension of the substrate sludge may release a significant amount of particulates and dissolved materials, further interfering with the measurement of sediment flux. This not only increases the uncertainty of the study, but can also potentially negatively impact the ecological environment of the lake, river. In summary, the current general lake and river sediment flux research method has the problems of low sampling efficiency, large influence of manual operation, sediment re-suspension interference and the like. Disclosure of utility model In view of the above-mentioned drawbacks of the prior art, the present utility model is directed to a device for collecting sediments in lakes and rivers, which is used for solving the problems of the prior art that the efficiency of sampling sediments in lakes and rivers is low, and the interference caused by the influence of artificial operation on the resuspension of sediment. To achieve the above and other related objects, the present utility model provides a device for collecting particles settled in lakes and rivers, comprising a collector comprising a collecting cylinder and a collecting cylinder cover; a closed ring is arranged at the center of the top end of the collecting cylinder; The collecting cylinder cover comprises a plurality of cover bodies, cover body weight pieces and a recovery rope, wherein the bottom ends of the cover bodies are respectively hinged to the top ends of cylinder walls of the collecting cylinder, a conical collecting cylinder cover is formed by encircling the cover bodies when the collecting cylinder cover is closed, the top ends of the cover bodies are respectively fixedly connected with the recovery rope, the tail ends of the recovery rope are fixedly connected with the cover body weight pieces and used for driving the cover bodies to open, and the head ends of the recovery rope penetrate through the closed ring and extend out of the water surface and are used for driving the cover bodies to be closed to complete recovery of the device. Optionally, a guide ring is fixedly connected to the side wall of the collecting cylinder, and the tail end of the recovery rope penetrates through the guide ring and is fixedly connected with the cover body counterweight. Optionally, the cover weight is a weight ball. Optionally, the diapire central authorities fixedly connected with of collecting cylinder is vertical arranges the connecting sleeve, fixedly connected with sleeve rod in the connecting sleeve, closed ring fixed connection is at the top of sleeve rod. Optionally, the top fixedly connected with closed ring bracing piece of collecting the barrel, closed ring bracing piece is a plurality of, a plurality of closed ring bracing piece's one end fixed connection is on the section of thick bamboo wall top of collecting the barrel, and the other end fixed connection is on the closed ring. Optionally, the collector fixing seat is fixedly connected to the bottom end of the collector and comprises a counterweight piece and a suppo