CN-113218370-B - Bionic river seat bottom for hydrologic sediment monitoring

CN113218370BCN 113218370 BCN113218370 BCN 113218370BCN-113218370-B

Abstract

The invention discloses a bionic river seat bottom for hydrologic sediment monitoring, which comprises a bionic fish frame, a bionic fish shell, a middle partition plate, a movable fish tail, a left cavity, a right cavity, a sediment collecting stabilizing plate, a first monitoring equipment clamp, a second monitoring equipment clamp, a third monitoring equipment clamp, a fourth monitoring equipment clamp and a heavy bottom plate. The shape of the seat bottom is a relief fish shape with a fixed head and a movable tail, the front 2/3 part of the body of the bionic fish keeps rigidity to reduce the swing amplitude of the head, and the back 1/3 part of the body swings left and right to generate travelling kinetic energy. The movable tail automatically swings under the water flow to adjust the self resistance and enable the movable tail to be stably placed on a river bed. The bionic river bottom and monitoring device provided by the invention has strong adaptability, is suitable for comprehensive monitoring devices under various conditions such as plateau rivers, mountain rivers, urban rivers and the like in China, realizes more convenient and efficient acquisition of hydrological sediment data, and improves the convenience and accuracy of water temperature sediment detection work.

Inventors

HUANG ER
LUO MING
XU WEILIN
LIU XINGNIAN
WANG XIEKANG

Assignees

四川大学
四川大学

Dates

Publication Date: 20260421
Application Date: 20210318
Priority Date: 20210318

Claims (6)

1. The bionic river bottom seat for hydrologic sediment monitoring is characterized by comprising a bionic fish frame (1), a bionic fish shell (4), a middle partition plate (3), a movable fish tail (7), a left cavity (10), a right cavity (9), a sediment collection stabilizing plate (11), a first monitoring equipment clamp (16), a second monitoring equipment clamp (17), a third monitoring equipment clamp (18), a fourth monitoring equipment clamp (19) and a heavy bottom plate (2); The bionic fish shell (4) is matched with the shape of the bionic fish frame (1), covers and is fixed on the outer surface of the bionic fish frame to form a fish body of the bionic fish, and the mouth part and the tail end of the abdomen of the bionic fish are opened; the movable fish tail (7) is movably connected to the tail end of the bionic fish frame (1) and can swing left and right relative to the bionic fish frame, the movable fish tail is movably connected with the tail end of the bionic fish frame (1) through a plug (8), the plug penetrates through plug holes arranged on the tail end of the bionic fish frame and the movable fish tail to movably connect the tail end of the bionic fish frame and the movable fish tail, the middle partition plate is horizontally fixed in the middle of an inner cavity of the bionic fish frame to divide the inner cavity of the bionic fish frame into an upper layer space and a lower layer space, the first monitoring equipment clamp (16), the second monitoring equipment clamp (17), the third monitoring equipment clamp (18) and the fourth monitoring equipment clamp (19) are respectively arranged in the upper layer space of the inner cavity of the bionic fish and are fixed on the bionic fish frame, the sediment collecting stabilizer plate (11) is arranged in the lower layer space of the bionic fish frame and penetrates through the lower layer space to the tail end of the abdomen of the bionic fish, one end of the sediment collecting stabilizer plate (11) is in a U shape, one end of the mouth of the sediment collecting stabilizer plate is in sequence connected with the U-shaped middle, the horizontal plate connected with the middle of the U-shaped middle is connected with the tail end of the horizontal plate, the inclined plate is arranged in the right side of the bionic fish body, the inclined plate is connected with the bottom plate (10) and the right side of the bionic fish body is connected with the bionic fish body, the bottom plate is arranged in the right side of the cavity, and the bionic fish body is symmetrically arranged in the cavity is connected with the right side of the bionic fish body, and the bionic frame, and the bottom plate is arranged in the right side is in the right side of the cavity is in the cavity, and the right side is connected with the cavity, and is in the right side, and the ground, and is fixedly connected with the bionic fish frame; The head of the bionic fish frame (1) is a cavity, the left cavity (10) and the right cavity (9) are strip-shaped plastic cavities with hollow structures, the strip-shaped plastic cavities are positioned at two sides of an upper space of an inner cavity of the bionic fish frame, one end head of each cavity is expanded and embedded in the head cavity of the bionic fish frame, and the other end of each cavity extends to the tail of a fish body; A horizontal plate of the sediment collection and stabilization plate (11) is provided with a placing groove (21) for installing a vibration sensor, and the placing groove is provided with a groove cover which is flush with the horizontal plate.
2. The bionic river bottom for hydrologic sediment monitoring according to claim 1, wherein the bionic fish frame (1) is composed of a fusiform middle frame, a plurality of transverse frame strips, a plurality of U-shaped frame strips, a plurality of connecting strips and two arc frame strips, the transverse frame strips are transversely and vertically arranged in the fusiform middle frame and fixedly connected with the fusiform middle frame to form a fusiform frame plane, the U-shaped frame strips are respectively vertically fixed on the upper surface and the lower surface of the fusiform frame plane, the arc parts face the back of the fish and the belly of the fish respectively, the connecting strips are fixed between two adjacent U-shaped frame strips on the fusiform frame plane, the U-shaped frame strips are connected into a whole, the last U-shaped frame strip is fixedly connected with the fish tail end of the fusiform middle frame through the connecting strips, the first U-shaped frame strip of the bionic fish head is fixedly connected with the head of the fusiform a bionic fish head through the two arc frame strips, and a cavity is formed between the two arc frame strips and the fusiform frame plane.
3. A simulated river seat bottom for hydrologic silt monitoring as claimed in claim 1 wherein the first monitoring device clamp (16), the second monitoring device clamp (17), the third monitoring device clamp (18) and the fourth monitoring device clamp (19) are basket pockets formed by a plurality of frame strips and are sized and shaped to match the monitoring device to be installed.
4. The bionic river bottom for hydrologic sediment monitoring according to claim 1, characterized in that the fish head and tail end of the bionic fish frame (1) are respectively provided with a hanging hook (5) for hanging the whole bottom to the river bottom.
5. The bionic river bottom for hydrologic sediment monitoring according to claim 1, wherein the heavy bottom plate (2) is a steel plate with a certain weight, and a weight hook (6) for hanging a weight for increasing the weight of the bottom is arranged on the bottom surface of the steel plate.
6. Bionic monitoring device for hydrologic sediment monitoring, characterized in that the bionic river seat bottom device comprises a bionic river seat bottom according to any one of claims 1-5, different monitoring devices are arranged in a first monitoring device clamp (16), a second monitoring device clamp (17), a third monitoring device clamp (18) and a fourth monitoring device clamp (19) according to monitoring requirements, and vibration sensors are arranged in a placing groove (21) of the sediment collection stabilizer plate (11).

Description

Bionic river seat bottom for hydrologic sediment monitoring Technical Field The invention relates to a novel hydrologic sediment monitoring bionic river bottom, in particular to a river, lake, reservoir and coastal area which are unattended, difficult to monitor manually and short in monitoring time. Background The hydrologic sediment monitoring technology is an important basis for hydrologic informatization of water conservancy, not only provides guarantee for the safe operation of hydraulic engineering, but also plays a very important role in flood disaster prevention and reduction, scientific scheduling of water resources and geological topography research. Traditional hydrologic monitoring instruments and equipment are designed based on a single physical principle, field multisource information is not collected at the same time, and different instruments and equipment have various characteristics on the adaptability of riverbed composition and sand conveying intensity, but have defects. Single flow rate measurements are mainly propeller velocimetry and acoustic doppler flow profiler (ADCP), where ADCP has become the standard technique for measuring flow rate measurements in marine, estuary and freshwater environments. The single suspended load measuring method mainly comprises three methods, namely a sampler method, an acoustic method, a laser method and a laser method, wherein the sampler method has the advantages of wide acceptance, time inspection, easiness in use and calibration of other methods, but needs post treatment, site labor and flow field interference, the acoustic method has the advantages of wide vertical range, good resolution, no interference, complex interference factors of back scattering signals, easiness in signal loss in high concentration, and the laser method has the advantages of realizing in-situ grading measurement, wherein the concentration of suspended load is independent of grading, is expensive and unreliable, is only suitable for small-particle-size range, only performs point measurement and interference flow field. The single bed charge measuring method mainly comprises four methods, namely, a sampler method has the advantages of wide acceptance, time inspection, on-site sand sample inspection, low sampling efficiency, flow field interference, reliable result of pit method when not silted up, suitability for seasonal channels, inapplicability for large flow, fixed position, most of measurement after flood, on-site construction, high price, particle tracking method has the advantages of capability of monitoring particle motion track, surface particle, most of observation after flood event, high price, indirect observation method does not interfere with flow field and high time resolution, and the correlation between acceptance signal and bed charge sand transmission rate is not good in some cases, so that the method is not widely accepted and used in a large number. Therefore, the comprehensive monitoring device is suitable for the comprehensive monitoring devices under various conditions such as plateau rivers, mountain rivers, urban rivers and the like in China to obtain the required hydrological sediment data, and the method not only improves the quality of actual measurement results, but also has obvious economic benefits. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a bionic river bottom and monitoring device for hydrological sediment monitoring, and the comprehensive monitoring device is suitable for various conditions of plateau rivers, mountain rivers, urban rivers and the like in China, so that hydrological sediment data can be conveniently and efficiently acquired, and the convenience and accuracy of water temperature sediment detection work are improved. Based on the movement law of the carangidae mode, the bionic river seat bottom for hydrologic sediment monitoring provided by the invention has the appearance of a relief fish shape with a fixed head and a movable tail, wherein the front 2/3 part of the body of the bionic fish keeps rigidity to reduce the head swing amplitude, and the rear 1/3 part of the body swings left and right to generate the travelling kinetic energy. The movable tail automatically swings under the water flow to adjust the self resistance and enable the movable tail to be stably placed on the river bed. The detection device for monitoring the hydrologic sediment is obtained by installing hydrologic sediment monitoring equipment in the bottom of a bionic river. The detection device adopts a sitting-bottom observation and self-contained working mode to measure. The invention provides a bionic river seat bottom for hydrologic sediment monitoring, which comprises a bionic fish frame, a bionic fish shell, a middle partition plate, a movable fish tail, a left cavity, a right cavity, a sediment collecting and stabilizing plate, a first monitoring equipment clamp, a second monitoring equipment clamp, a th