CN214593786U - Fishing net suitable for collecting and shaking mosquito pupa slough - Google Patents

Abstract

The utility model discloses a scoop net suitable for collect and shake mosquito pupa and slough, including the telescopic link, the telescopic link front end is connected with the scoop net frame, and the net gape setting of string bag is on dragging for the net frame, and cross section department in the string bag is provided with the block, and the block can be dismantled through the snap-fastener with the inner wall of string bag all around and be connected, and the block mesh number is less than the string bag mesh number. The outer side of the net bag is provided with a surface fastener. The utility model discloses obviously can reduce a large amount of floaters and get into the string bag, reduce later stage and wash filterable work, reduce because of washing the damage that filters caused, simultaneously can to a great extent guarantee that a appearance continues to gather once can save time.

Description

Fishing net suitable for collecting and shaking mosquito pupa slough

Technical Field

The utility model belongs to the technical field of water ecological environment monitoring, concretely relates to scoop net suitable for collect and shake mosquito pupa and slough.

Background

With the pursuit of people for good ecological environment, the water quality biological monitoring is more and more emphasized in the water ecological environment management due to the advantages of sensitivity, long-term property, continuity, non-destructiveness, comprehensiveness and the like, and is gradually an important beneficial supplement of chemical monitoring. The chironomid is used as a main dominant group in benthonic animals, has the advantages of wide distribution, multiple species, high water quality sensitivity and weak moving capability, and meanwhile, the chironomid slough has the advantages of convenience in collection, easiness in identification and the like, so that the chironomid slough technology is bound to become an important part for aquatic organism monitoring.

At present, collecting the slough of the mosquito pupa of the shaking mosquito by utilizing a fishing net (250 mu m), wherein the collecting is generally carried out along a region where the pupa slough of a river (lake) bank is relatively gathered, the collected flotage is poured into a barrel for suspension, the suspension is filtered by a double-layer screen (4 meshes/60 meshes), a bottom sample is reserved and sealed, and the sampling is finished. Although the method is simple and convenient, a large amount of floaters such as dry branches and rotten leaves, bottles and the like are fished while the pupa skins are fished, so that the workload of later-stage filtration is greatly increased, and the capacity is reduced, the collection times are increased, and the collection difficulty is increased if the floaters are excessive.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the above-mentioned problem that prior art exists, a be applicable to the collection and shake scoop net of mosquito pupa ghost is provided, solve because directly with scoop net gather shake the filtration difficulty that mosquito pupa ghost brought and gather the many scheduling problems of number of times, the utility model has the advantages of simple structure, convenient to use can improve and shake mosquito pupa ghost collection efficiency.

The above object of the utility model is realized through following technical scheme:

the utility model provides a scoop net suitable for collect and shake mosquito pupa and slough, includes the telescopic link, its characterized in that, and the telescopic link front end is connected with the scoop net frame, and the net gape setting of string bag is on dragging for the net frame, and cross section department in the string bag is provided with the block, and the block can be dismantled with the inner wall of string bag all around and be connected, and the block mesh number is less than the string bag mesh number.

The periphery of the blocking net is detachably connected with the inner wall of the net bag through the snap fasteners, the snap fasteners comprise surface fasteners and bottom fasteners, 4-6 surface fasteners are arranged on the cross section of the inner side of the net bag, which is 10-15cm away from the fishing net frame, and the bottom fasteners corresponding to the surface fasteners in position and number are arranged on the periphery of the blocking net.

The surface fastener is arranged on the outer side of the net bag.

The telescopic rod is made of stainless steel or carbon steel and the like, and the longest length of the telescopic rod is 1.5 m.

As mentioned above, the front end of the telescopic rod is provided with the front end screw hole, and the fixing screw passes through the front end screw hole to be connected with the fishing net frame.

The mesh number of the net bag is 60-80 meshes, and the mesh number of the blocking net is 2-4 meshes.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model discloses can reduce a large amount of floaters and get into the string bag, reduce later stage and wash filterable work, reduce because of washing the damage that filters caused, simultaneously can to a great extent guarantee that a appearance lasts to gather once can, save time.

Drawings

Fig. 1 is a schematic view of the overall structure.

In the figure: 1-fishing a net frame; 2, a telescopic rod; 3-snap fastener; 4-blocking; 5-a string bag.

Detailed Description

To facilitate understanding and practice of the invention by those of ordinary skill in the art, the following detailed description of the invention is provided in connection with the examples, and it is to be understood that the examples described herein are for purposes of illustration and explanation only and are not intended to limit the invention.

Example 1

The utility model provides a scoop net suitable for collect and shake mosquito pupa and slough, includes the telescopic link of adjustable length, and the telescopic link is materials such as stainless steel or carbon steel, and the longest length of telescopic link is 1.5m, and the front end screw mouth has been seted up to the telescopic link front end, and fixed screw passes the front end screw mouth and is connected with scoop net frame, and then fixed flexible pipe front end and scoop net frame. The fishing net frame is provided with a net bag, the net opening of the net bag 5 is arranged on the fishing net frame 1, in the embodiment, the diameter of the fishing net frame is about 45cm, the diameter of the net opening of the net bag is consistent with the diameter of the fishing net frame and is 60-80cm long, the mesh number of the net bag is 60-80 meshes, a blocking net is arranged on the cross section in the net bag, and the periphery of the blocking net is connected with the inner wall of the net bag through a snap fastener. The blocking net is a flexible blocking net, the number of the blocking net is 2-4 meshes, the diameter is about 40cm, and the blocking net is approximately parallel to the fishing net frame when in use.

As a preferred scheme, the snap fastener comprises a surface fastener and a bottom fastener, the surface fastener and the bottom fastener can be detachably connected, 4-6 surface fasteners (10mm) are arranged on the circular section of the inner side of the net bag, which is 10-15cm away from the fishing net frame, and are used for connecting a blocking net arranged at the position, and the periphery of the blocking net is provided with the bottom fasteners corresponding to the positions and the number of the surface fasteners. A snap surface fastener is arranged at the position 20cm away from the fishing net frame on the outer side of the net bag and is used for hanging under the condition of no blocking net.

A use method of a fishing net suitable for collecting the slough of the mosquito shaking pupa comprises the following steps:

step 1, assembling the fishing net, wherein the fishing net comprises a telescopic rod, a fishing net frame, a net bag and a blocking net.

And 2, collecting the collected areas along the river/lake bank pupae slough, wherein generally the floaters are large in size and are blocked by a blocking net, the chironomus pupae slough is small in size and can penetrate through the blocking net, but the floaters remained on the blocking net are cleaned in time and taken out, and repeating the process.

And 3, opening the blocking net or buckling the blocking net on the outer side of the net bag, pouring the collected chironomus pupa and slough mixture into a bucket for suspension, removing suspended matters with larger volume, filtering by a double-layer overlapped sieve (4 meshes/60 meshes), and collecting and sealing after filtering.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (6)

1. The utility model provides a scoop net suitable for collect and shake mosquito pupa and slough, includes telescopic link (2), its characterized in that, telescopic link (2) front end with drag for the screen frame (1) and be connected, the net gape setting of string bag (5) is on dragging for screen frame (1), cross section department in string bag (5) is provided with block (4), can dismantle with the inner wall of string bag (5) all around of block (4) and be connected, block (4) mesh number is less than string bag (5) mesh number.

2. The fishing net suitable for collecting the slough of the mosquito-shaking pupa as claimed in claim 1, wherein the periphery of the blocking net (4) is detachably connected with the inner wall of the net bag (5) through a snap fastener (3), the snap fastener (3) comprises a surface fastener and a bottom fastener, 4-6 surface fasteners are arranged on the cross section of the inner side of the net bag (5) 10-15cm away from the fishing net frame (1), and the periphery of the blocking net (4) is provided with the bottom fasteners corresponding to the surface fasteners in position and number.

3. The fishing net suitable for collecting the slough of the mosquito-shaking pupa according to claim 1, wherein the outer side of the net bag (5) is provided with a surface button.

4. The scoop net suitable for collecting the slough of the mosquito-shaking pupa of claim 1, wherein the telescopic rod (2) is made of stainless steel or carbon steel, and the longest length of the telescopic rod (2) is 1.5 m.

5. The fishing net suitable for collecting the slough of the mosquito-shaking pupa of claim 1, wherein the front end of the telescopic rod (2) is provided with a front screw hole through which a fixing screw passes to be connected with the fishing net frame (1).

6. The fishing net suitable for collecting the slough of the mosquito-shaking pupa of claim 1, wherein the mesh number of the net bag (5) is 60-80 meshes, and the mesh number of the blocking net (4) is 2-4 meshes.

Images