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A hand-held device for quantitative collection of submerged plants

A technology for submerged plants and quantitative collection, which is applied in the direction of sampling devices, etc., can solve the problems of lack of cutting, large sampling size, and inconvenient operation and use, and achieve the effects of easy portability and transportation, high collection efficiency, and small footprint

Active Publication Date: 2021-03-02
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the sampling area meets the needs of scientific research, it is widely used in lake scientific research investigations, but there are also many problems: on the one hand, due to the large sampling size, the arm-type grass picking clips are large in size, which occupies a large area when transported by vehicles and used on ships. At the same time, due to the use of steel materials, it is heavy and inconvenient to operate and use; on the other hand, due to structural reasons, it is often impossible to cut into the mud and obtain relatively complete aquatic plants. At the same time, due to the entanglement between aquatic plants, there is no effective Cutting, so that many aquatic plants outside the quadrat are collected, making the sampling work inaccurate
Since the sampling area cannot be determined, it can only be used for qualitative collection, not quantitative
Therefore, the existing grass-picking devices cannot meet the convenience and accuracy requirements for scientific research and investigation of submerged plants.

Method used

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  • A hand-held device for quantitative collection of submerged plants
  • A hand-held device for quantitative collection of submerged plants
  • A hand-held device for quantitative collection of submerged plants

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Taking the platform frame as a rectangular frame as an example, two relative cutting blades 7 are arranged in the platform frame as an example to illustrate the structure of the present invention.

[0044] The sampling frame 6 includes a platform frame surrounding a closed circle, and an insert frame is vertically arranged on the inner edge or the outer edge of the platform frame. When in use, the insertion frame is inserted downward into the water. In order to facilitate the taking of the sampling frame 6, handles 63 are provided on a group of opposite sides of the platform frame.

[0045] Two segments of blade chute 62 are respectively provided on each side of a group of opposite sides of the insertion frame, and two cutting blades 7 are arranged in the insertion frame, and the two ends of each cutting blade 7 are respectively placed in a corresponding pair of blade chute 62 In, cutting blade 7 can move back and forth in blade chute 62.

[0046]In order to realize t...

Embodiment 2

[0052] On the basis of Embodiment 1, the structure of the present invention is further designed so that when not in use, the bracket 5 can be folded for easy storage.

[0053] The end of the chute rod 1 passing through the bottom of the platform plate 51 is provided with a stopper 12, the coaxial sleeve of the chute rod 1 is fixed with a locking sleeve 4, the stopper 12 and the locking sleeve 4 cooperate to clamp the platform plate 51, The locking sleeve 4 can be set to be threadedly connected with the chute rod 1. The surface of the chute rod 1 is provided with external threads, and the inner wall of the locking sleeve 4 is provided with internal threads. Moving up and down.

[0054] The platform plate 51 includes two opposite detachable half plates, and the center of the opposite sides of the half plates is provided with a semicircular hole through which the chute rod 1 passes. The two half-boards can be connected by a connection mode provided with mutual plugging or buckli...

Embodiment 3

[0059] On the basis of implementing one or two, the collection system is designed as a detachable structure.

[0060] Net bag 8 and cutting blade 7 joints are provided with clamping roller 81, and simultaneously, cutting blade 7 is provided with draw-in groove 71, and clamping roller 81 can be compressed and stuck in the draw-in groove 71, and can be pulled out from draw-in groove 71 by force, It can be installed before collection and disassembled after collection, which is convenient for net bag 8 to transfer.

[0061] The card slot 71 can be arranged as a C-shaped slot with a plurality of intervals facing upward.

[0062] The top of net pocket 8 is provided with net pocket magnet 81, and simultaneously, platform plate 51 is provided with platform magnet 51-2, by magnet adsorption, net pocket 8 top is connected with platform plate 51, convenient disassembly and connection.

[0063] The setting method of the platform magnet 51-2 can be: the four corners of the platform plate ...

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Abstract

The invention relates to a handheld submerged plant quantitative collection device which comprises a sampling frame, a cutting system and a collection system, the cutting system is arranged in the sampling frame and comprises more than one cutting blade capable of sliding on the plane where the sampling frame is located, and the collection system surrounds the cutting system and is used for collecting submerged plants cut by the cutting system. A sampling area is fixed through the sampling frame, submerged plants are cut off by the cutting system and collected by the collecting system, operation is coherent, the sampling area is fixed, and research is facilitated.

Description

technical field [0001] The invention relates to a hand-held submerged plant quantitative collection device, which belongs to the technical field of limnology and ecological submerged plant investigation. Background technique [0002] Submerged plants are an important part of the structure and function of freshwater ecosystems. They are important food sources and habitats for many aquatic organisms, and play an important role in maintaining the clear water state of lakes. Therefore, they are important objects of limnological research and investigation. The observation and survey data of lake submerged plant species and existing biomass are important basis for lake management and ecological restoration. [0003] Existing commonly used aquatic plants collection device mainly comprises grab type, gripper type, arm type, trawl type. [0004] The grab-type grass harvesting device is an enlarged version of the Peterson dredger. Its working principle is similar to it. It adopts the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/04
CPCG01N1/04
Inventor 史小丽范帆陈开宁
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY