阅读说明：本技术 一种海山区底层生物采集网框架结构 (Frame structure of bottom layer biological collection net in sea and mountain area ) 是由 刘健 黄洪亮 李灵智 杨嘉樑 屈泰春 饶欣 于 2020-06-22 设计创作，主要内容包括：本发明涉及一种海山区底层生物采集网框架结构,包括采集网框架,采集网框架呈槽型结构,采集网框架包括两个侧框架,以侧框架作为采集网框架的支撑边,侧框架的前端呈圆弧形,侧框架的前端与侧框架的底面形成一个平滑过渡的弧形面,侧框架的后端的棱角边缘处经圆角处理；侧框架的上下板之间设有加强板,两个侧框架通过三块联接板连接,两个侧框架之间还设有一网口上纲支架,侧框架的上下钢板之间还设有网口侧纲支架,网口上纲支架和网口侧纲支架构成一U型架,U型架位于采集网框架的前端。通过两个侧框架降低采集网具与海底接触面积,方便越障、提高底层生物采集成功率,可以适应不同海洋底质环境的底层生物采样并良好的保护底质环境的优点。(The invention relates to a bottom layer biological acquisition net frame structure in a sea and mountain area, which comprises an acquisition net frame, wherein the acquisition net frame is of a groove structure and comprises two side frames, the side frames are used as supporting edges of the acquisition net frame, the front ends of the side frames are in a circular arc shape, the front ends of the side frames and the bottom surfaces of the side frames form a smoothly-transitional arc-shaped surface, and the edges of edges and corners of the rear ends of the side frames are processed by round angles; the steel wire mesh side cable collecting device comprises side frames, reinforcing plates, a mesh opening side cable support, mesh opening side cable supports, a U-shaped frame and a collecting net frame, wherein the reinforcing plates are arranged between upper plates and lower plates of the side frames, the two side frames are connected through three connecting plates, the mesh opening side cable support is further arranged between the two side frames, the mesh opening side cable support is further arranged between the upper steel plate and the lower steel plate of the side frames, the mesh opening side cable support and the mesh opening side cable support form the U. The contact area between the acquisition net and the seabed is reduced through the two side frames, obstacles are conveniently crossed, the success rate of bottom layer organism acquisition is improved, and the bottom layer organism acquisition net can adapt to the bottom layer organism sampling of different marine substrate environments and well protect the substrate environment.)

1. The bottom layer biological acquisition net frame structure in the sea and mountain area comprises an acquisition net frame and is characterized in that the acquisition net frame is of a groove-shaped structure and comprises two side frames, the side frames are used as supporting edges of the acquisition net frame, the front ends of the side frames are arc-shaped, the front ends of the side frames and the bottom surfaces of the side frames form an arc-shaped surface with smooth transition, and the edge corners and edges of the rear ends of the side frames are subjected to fillet treatment;

the steel wire mesh collection net frame is characterized in that a reinforcing plate is arranged between an upper plate and a lower plate of the side frame, the two side frame frames are connected through three connecting plates, a net opening steel wire mesh feeding support is further arranged between the two side frame frames, a net opening steel wire mesh support is further arranged between an upper steel plate and a lower steel plate of the side frame frames, the net opening steel wire mesh feeding support and the net opening steel wire mesh support form a U-shaped frame, and the U-shaped frame is located at the front end of the collection net frame.

2. A framework structure of a bottom layer biological collection net in a seashore area according to claim 1, wherein: and a warp pull ring is arranged at the top of the arc at the front end of the side frame.

3. A framework structure of a bottom layer biological collection net in a seashore area according to claim 1, wherein: and an inverted pull ring is arranged on the connecting plate positioned on the rear side of the three connecting plates.

4. A framework structure of a bottom layer biological collection net in a seashore area according to claim 1, wherein: the side frame is of a steel plate frame structure, the height of the side frame is 1m, the length of the side frame is 3m, the thickness of a steel plate of the side frame is 1cm, and the width of the steel plate of the side frame is 10 cm.

5. A framework structure of a bottom layer biological collection net in a seashore area according to claim 1, wherein: the horizontal distance between the two side frames is 1m, the connecting plate is a channel steel, and the height of the channel steel is 5 cm.

6. A framework structure of a bottom layer biological collection net in a seashore area according to claim 1, wherein: an acquisition net netting gear is fixed in the acquisition net frame, an upper net of the acquisition net netting gear is fixed on the net opening upper net bracket, and a side net of the acquisition net netting gear is fixed on the net opening side net bracket.

7. A framework structure of a bottom layer biological collection net in a seashore area according to claim 1, wherein: the net mouth head line support and the net mouth side line support are both made of round steel, and the diameter of the round steel is 3 cm.

8. A framework structure of a bottom layer biological collection net in a seashore area according to claim 1, wherein: the side frame is a hollow buoy structure or adopts high-strength PVC pipes.

9. A framework structure of a bottom layer biological collection net in a seashore area according to claim 1, wherein: buoyancy materials such as a buoyancy plate or a pressure-resistant plastic floater are fixed on the connecting plate.

Technical Field

The invention relates to a bottom layer biological collection net frame structure in marine biological resource investigation technology, in particular to a bottom layer biological resource collection net frame structure in a sea and mountain area.

Background

With the continuous and deep research of the characteristics of the sea and mountain ecosystem, the research on the biological resources in the sea and mountain areas needs to be strengthened urgently, the composition, abundance and biomass of the bottom biological species in the sea and mountain areas are analyzed, and basic data and scientific basis are provided for supporting the reasonable development of the deep and far sea resources in China in the future.

At present, a mud sampler, an Oldham trawl, a bottom trawl, a manned deep submergence vehicle and an unmanned deep submergence vehicle are generally adopted when marine bottom layer organisms are collected. But the mud sampler is only suitable for collecting micro and small organisms. The sampling and operating method based on platforms such as manned deep submergence vehicles, unmanned deep submergence vehicles and the like has the advantages of high cost, complex operation and low underwater speed, is more suitable for directly observing life phenomena of ocean floors, and is not suitable for sampling swimming organisms. The a trawl is a conventional method for marine bottom biological investigation, commonly used for biological sampling in shallow sea, and gradually used for sampling deep sea organisms. However, when bottom layer organisms in a sea and mountain area with a complex sea bottom topography are sampled, the mesh opening of the attritor trawl is of a frame structure, the contact surface with the sea bottom is wide, and particularly, the influence on the bottom material environment of the sea and mountain area is easily caused in the dragging process of the sea and mountain area with a poor bottom material environment; on the other hand, the net is easily hooked with reefs and the like, so that accidents such as damage or net loss are caused, and the normal development of investigation is influenced.

The bottom material environment and the biological community in the mountainous area are complex, and the collection of the bottom biological sample in the mountainous area cannot be effectively carried out due to the lack of professional sampling and collecting netting gear in the sampling and investigation of the bottom biological resource in the mountainous area. How to rapidly, conveniently and effectively investigate and sample the bottom layer organisms of the sea and the mountain to obtain the first-hand research sample of the bottom layer organisms of the sea and the mountain becomes urgent.

The project of 'western Pacific ocean typical sea mountain ecosystem scientific investigation' special for national science and technology basic resource investigation also uses the research of swimming animals in the sea mountain area as important research content to carry out special research.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a frame structure of a sea-mountain bottom layer biological resource collection net.

The invention provides a bottom layer biological acquisition net frame structure in a sea and mountain area, which comprises an acquisition net frame and is characterized in that the acquisition net frame is of a groove-shaped structure and comprises two side frames, the side frames are used as supporting edges of the acquisition net frame, the front ends of the side frames are arc-shaped, the front ends of the side frames and the bottom surfaces of the side frames form a smoothly-transitional arc-shaped surface, and the edge of the corner angle at the rear end of each side frame is subjected to fillet treatment;

the steel wire mesh collection net frame is characterized in that a reinforcing plate is arranged between an upper plate and a lower plate of the side frame, the two side frame frames are connected through three connecting plates, a net opening steel wire mesh feeding support is further arranged between the two side frame frames, a net opening steel wire mesh support is further arranged between an upper steel plate and a lower steel plate of the side frame frames, the net opening steel wire mesh feeding support and the net opening steel wire mesh support form a U-shaped frame, and the U-shaped frame is located at the front end of the collection net frame.

The invention optimizes the structure, and has the advantages of reducing the contact area of the acquisition net and the seabed through the two side frames, being convenient for obstacle crossing, improving the acquisition success rate of bottom layer organisms, being suitable for sampling the bottom layer organisms in different marine substrate environments and well protecting the substrate environments. By utilizing the marine bottom layer resource acquisition net frame structure provided by the invention, different sampling nets can be carried according to survey needs, and the structure is not limited by biological resource acquisition. The anterior segment of collection system side frame has adopted convex structure, forms a smooth transition's arcwall face, is applicable to the sampling of bottom biological resources, has better trafficability characteristic, does not destroy the advantage of bottom ecological environment. Due to the fact that the net opening part of the collecting net using the device is mainly fixed with the frame structure except for the foot line, the expanding area of the net opening of the investigation fishing gear is stable, resource abundance and biomass of a collecting area can be conveniently and standardly evaluated, the foot line of the investigation net is in a natural adjusting state, the contact requirement of the foot line and a bottom layer can be adjusted according to investigation requirements and investigation objects, a special foot line structure is configured, the success rate of collecting bottom layer biological resources is effectively improved, and the problem that the success rate of collecting bottom layer biological resources of an existing sampling tool is low can be solved.

Further preferably, a warp pull ring is arranged at the top of the arc of the front end of the side frame. For connecting the warp.

Preferably, an inverted pull ring is arranged on the connecting plate positioned on the rear side of the three connecting plates. When the acquisition device net is blocked by the barrier, the acquisition device net can be obliquely withdrawn from the barrier by pulling the inverted pull ring.

More preferably, the side frames are steel plate frame structures, the height of each side frame is 1m, the length of each side frame is 3m, the thickness of the steel plate of each side frame is 1cm, and the width of the steel plate of each side frame is 10 cm.

Further preferably, the horizontal distance between the two side frames is 1m, the connecting plate is a channel steel, and the height of the channel steel is 5 cm.

Further preferably, an acquisition net netting gear is fixed in the acquisition net frame, an upper net line of the acquisition net netting gear is fixed on the net opening upper net line bracket, and a side net line of the acquisition net netting gear is fixed on the net opening side net line bracket. The collecting net tool can be configured according to the standard and requirement of investigation and sampling.

Preferably, the net mouth steel head line support and the net mouth steel side line support are both made of round steel, and the diameter of the round steel is 3 cm.

Further preferably, the side frames can be hollow buoy structures or high-strength PVC pipes. The floating force can be increased by trawling operation in the surface water area and the middle water area.

Further preferably, a buoyancy plate or a pressure-resistant plastic float or other buoyancy material may be fixed to the coupling plate. Thereby further increasing buoyancy and enabling the invention to be used in surface or mid-water areas.

Drawings

FIG. 1 is a schematic structural view of an acquisition web frame according to an embodiment of the present invention;

FIG. 2 is a schematic overall view of an acquisition web according to an embodiment of the present invention;

FIG. 3 is a front view of an acquisition web frame;

FIG. 4 is a right side view of an acquisition web frame;

fig. 5 is a top view of an acquisition web frame.

The reference numerals and components referred to in the drawings are as follows:

1. the net comprises a side frame, 2 parts of a reinforcing plate, 3 parts of a warp pull ring, 4 parts of a net opening head support, 5 parts of a net opening side net support, 6 parts of a connecting plate, 7 parts of an inverted pull ring and 8 parts of a collecting net tool.

Detailed Description

The invention is further described with reference to the following examples and with reference to the accompanying drawings.