CN113029666A - Height-adjustable layered sampling device and using method thereof - Google Patents
Height-adjustable layered sampling device and using method thereof Download PDFInfo
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- CN113029666A CN113029666A CN202110162163.XA CN202110162163A CN113029666A CN 113029666 A CN113029666 A CN 113029666A CN 202110162163 A CN202110162163 A CN 202110162163A CN 113029666 A CN113029666 A CN 113029666A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
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Abstract
The invention relates to a height-adjustable layered sampling device and a using method thereof, and the device comprises an upper-layer net rack, a lower-layer net rack and a net, wherein the upper-layer net rack and the lower-layer net rack are butted through an adjustable structure, the net is arranged at the upper part of the upper-layer net rack and the lower part of the lower-layer net rack, one side of the upper-layer net rack and one side of the lower-layer net rack are provided with traction ropes, and the traction ropes are concentrated and connected with a pile body through fixing ropes. The invention has the characteristics of wide application range, accurate collection, stable structure in use and the like, simultaneously realizes the functions of synchronous collection and comparison, and is convenient for a user to analyze and process samples.
Description
Technical Field
The invention relates to the technical field of field sampling, in particular to a height-adjustable layered sampling device and a using method thereof.
Background
In recent years, with the emphasis on ecological environment and resource protection, the work of ecological environment and resource investigation and ecological health assessment has been increasing, the indexes of ecological environment include phytoplankton, zooplankton and the like, and the fishery resources include fish, shrimps, crabs, cephalopods and the like. Sampling and investigating early development stages of different fishery resources are important indexes for evaluating resource supplement amount and ecological environment health condition. The early stage of different species has multi-nutrient planktonic life, and the distribution water layers of the species have obvious difference. The study on the change of the layered distribution of early resources along with the rhythms of day, night, tide and the like is important content for measuring the condition of the early resources and ascertaining the characteristics of the early ecological behaviors. At present, plankton nets are mostly used for collection and investigation of nutritional plankton living individuals, the sampling mode mainly comprises horizontal trawling and vertical sampling, and samples collected by the two methods are mainly concentrated on water surface samples or are sampled and obtained through vertical columns from bottom to top. The vertical sampling is vertical short-time sampling from bottom to top, the influence of stormy waves, tides and the like is large in the actual operation process in the field, the net tool is difficult to keep an ideal vertical state during vertical sampling, the influence of the environment is large in the short-time sampling process from bottom to top, and particularly for samples with less distribution, the amount of the sampled samples is small, and sufficient samples are difficult to obtain through vertical sampling; horizontal sampling usually only focuses on samples on the surface layer of the water body, and synchronous acquisition of samples distributed on different water layers cannot be completed.
In order to simplify the sampling operation and improve the sampling accuracy, a new sampling device and a new sampling mode need to be designed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a height-adjustable layered sampling device and a using method thereof, which have the characteristics of wide application range, accurate acquisition, stable structure in use and the like, realize the functions of synchronous acquisition and comparison, and facilitate the analysis and processing of samples by users.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a layering sampling device with adjustable height, includes upper rack, lower floor's rack and netting, upper rack and lower floor's rack between dock through adjustable structure, upper rack upper portion department and the lower part department of lower floor's rack all be provided with the netting, one side department of upper rack and lower floor's rack be provided with the haulage rope, the haulage rope concentrate and link to each other with the pile body through fixed rope.
As a supplement to the technical scheme, the upper net rack is inserted into the lower net rack, a plurality of insertion holes are uniformly formed in the joint of the upper net rack and the lower net rack, the adjustable structure is selected from the ring-shaped buckle, and the ring-shaped buckle penetrates through the insertion holes to position the upper net rack and the lower net rack.
As a supplement to the technical solution, the pile body is connected to the river bottom or the ship.
As a supplement to the technical proposal, the upper part of the upper net rack is provided with a floating ball.
As a supplement to the technical scheme, the bottom of the netting is provided with a net bottom pipe.
A using method of a height-adjustable layered sampling device comprises the following specific steps:
(a) determining the layering distance according to hydrological conditions such as water depth, tide and the like of a water area where the collected object is distributed, controlling the distance between the upper-layer net rack and the lower-layer net rack through an adjustable structure, opening the annular buckle during adjustment, then adjusting the upper-layer net rack up and down, and closing the annular buckle after the adjustment is in place; (b) determining the specification of the netting according to the belonging of the collection object; (c) determining a sampling mode according to the water area condition; (d) according to different implementation purposes, the method combines the ecological habits and the moving behavior characteristics of different sampling objects, determines the sampling time, determines the net release frequency and the net release time, and completes the layered sampling of the acquisition objects under the influences of different seasons, flood seasons, day and night, tides and the like.
In the step b, the length and mesh specification of the net and the mesh specification of the net at the periphery of the net bottom pipe need to be set.
In step c, passive sampling or active sampling can be selected according to different sampling requirements. The passive sampling can be selected in a water area with larger water flow and tidal change, the layered sampling device is fixed on a fixed pile foundation of the water body, the layered sampling device is automatically opened under the action of the water flow, the opening direction of the layered sampling device can automatically rotate along with the change of the water flow and the tide, the direction of a net opening of the layered sampling device is kept opposite to the direction of the water flow, and a biological sample enters the net along with the water flow; the active sampling can fix the layered sampling device on the ship body, the layered sampling device is dragged by the ship body to displace, and the layered sampling device is dragged to complete the collection of samples.
Has the advantages that: the invention relates to a height-adjustable layered sampling device and a using method thereof, and the height-adjustable layered sampling device has the following specific beneficial effects:
(1) by arranging the upper net rack, the lower net rack and the adjustable structure, the space between the upper net rack and the lower net rack can be flexibly adjusted, the height of the layered sampling device is controlled, samples of different water layers can be conveniently collected, biological samples of different water layers can be simultaneously collected, and the samples collected by different water layers can be conveniently and synchronously collected and compared;
(2) the floating balls are arranged at the two ends of the upper net rack, so that the upper frame of the net rack and the surface of a water body can be kept horizontal, and the net rack can be kept stable and balanced when being influenced by wind waves and tides.
Drawings
FIG. 1 is a schematic diagram of the present invention;
fig. 2 is a schematic view of the adjustable structure according to the present invention.
The figure is as follows: 1. the net comprises an upper net frame, a lower net frame, a 3 adjustable structure, 4 floating balls, 5 netting, 6 net bottom pipes, 7 traction ropes, 8 fixing ropes, 9 pile bodies, 10 and annular buckles.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The embodiment of the invention relates to a height-adjustable layered sampling device, which comprises an upper-layer net rack 1, a lower-layer net rack 2 and a net 5, wherein the upper-layer net rack 1 and the lower-layer net rack 2 are butted through an adjustable structure 3, the net 5 is arranged at the upper part of the upper-layer net rack 1 and the lower part of the lower-layer net rack 2, a traction rope 7 is arranged at one side of the upper-layer net rack 1 and one side of the lower-layer net rack 2, and the traction rope 7 is concentrated and connected with a pile body 9 through a fixing rope 8.
Through setting up through upper rack 1 and lower floor's rack 2 among this technical scheme for this device can realize gathering the sample of different water layers, simultaneously because upper rack 1 and lower floor's rack 2 are in same vertical face, the sample of different water layer collections can carry out the contrast in step, through setting up adjustable structure 3, conveniently adjusts the interval between upper rack 1 and the lower floor's rack 2 greatly, and convenience of customers sets up.
The whole device is of a stainless steel tube structure, and the hollow structure is light and convenient for operation during sampling; the stainless steel has certain hardness, so that the frame structure is not easy to deform, and the corrosion of a water body can be effectively avoided in the sampling process.
As a supplement to the technical scheme, the upper net rack 1 is inserted into the lower net rack 2, a plurality of insertion holes are uniformly formed in the butt joint of the upper net rack 1 and the lower net rack 2, the adjustable structure 3 selects the annular buckle 10, and the annular buckle 10 penetrates through the insertion holes to position the upper net rack 1 and the lower net rack 2.
Upper net rack 1 is pegged graft and is detained 10 interconnect through adjustable structure 3's annular between lower floor's net rack 2, and two-layer equipment and separation about can be convenient going on are convenient for store and accomodate.
As a supplement to this solution, the pile body 9 is connected to the river bottom or the ship.
This device can carry out initiative collection and passive collection, and pile body 9 links to each other with the river bottom during passive collection, and during initiative collection, pile body 9 installs on the hull.
As a supplement to the technical proposal, the upper part of the upper net rack 1 is provided with a floating ball 4.
As a supplement to the technical scheme, the bottom of the netting 5 is provided with a net bottom pipe 6.
The floater 4 includes 2 cylinder foam structures, is fixed in the upper end of 2 sides of upper rack 1 respectively, and the upper end of floater 4 meets with the higher authority of upper rack 1. The periphery of the floating ball 4 is covered with a layer of netting which can protect the floating ball 4 and prevent the foam structure from being damaged by the influence of wind waves and tide water in the field sampling process. The floating ball 4 provides buoyancy for the whole device, so that the upper part of the whole device can be consistent with the surface of the water body.
The netting 5 is respectively arranged on the upper net rack 1 and the lower net rack 2, and the size of the net opening of the netting is matched with the frames of the upper net rack 1 and the lower net rack 2. The net mouth of the netting 5 is fixed around the net rack frame to make it open. The length and mesh specification of the net 5 may be set according to the kind and specification of the collected sample.
The net bottom pipe 6 is a cylindrical tubular structure and is fixed at the tail end of the net 5, the whole frame of the net bottom pipe 6 is hollow, the periphery of the net bottom pipe is covered by the net, and a valve switch device is arranged on the net bottom pipe and is respectively used for enriching and releasing samples.
A using method of a height-adjustable layered sampling device comprises the following specific steps:
a. determining the layering distance according to the hydrological conditions such as water depth, tide and the like of a water area where the collected object is distributed, controlling the distance between the upper-layer net rack 1 and the lower-layer net rack 2 through the adjustable structure 3, opening the annular buckle 10 during adjustment, then adjusting the upper-layer net rack 1 up and down, and closing the annular buckle 10 after the adjustment is in place; b. determining the specification of the netting according to the belonging of the collection object; c. determining a sampling mode according to the water area condition; d. according to different implementation purposes, the ecological habits and the moving behavior characteristics of different sampling objects are combined, the sampling time is determined, the net releasing frequency and the net releasing time are determined, and layered sampling of the sampling objects under the influence of different seasons, flood seasons, day and night, tides and the like is completed.
In the step b, the length and mesh specification of the netting 5 and the mesh specification of the netting at the periphery of the mesh bottom tube 6 need to be set.
In step c, passive sampling or active sampling can be selected according to different sampling requirements. The passive sampling can be selected in a water area with larger water flow and tidal change, the layered sampling device is fixed on a fixed pile foundation of the water body, the layered sampling device is automatically opened under the action of the water flow, the opening direction of the layered sampling device can automatically rotate along with the change of the water flow and the tide, the direction of a net opening of the layered sampling device is kept opposite to the direction of the water flow, and a biological sample enters the net along with the water flow; the active sampling can fix the layered sampling device on the ship body, the layered sampling device is dragged by the ship body to displace, and the layered sampling device is dragged to complete the collection of samples.
Claims (9)
1. A height-adjustable layered sampling device, characterized in that: including upper rack (1), lower floor's rack (2) and netting (5), upper rack (1) and lower floor's rack (2) between dock through adjustable structure (3), upper rack (1) upper portion department and the lower part department of lower floor's rack (2) all be provided with netting (5), one side department of upper rack (1) and lower floor's rack (2) be provided with haulage rope (7), haulage rope (7) concentrate and link to each other with pile body (9) through fixed rope (8).
2. A height adjustable layered sampling assembly as set forth in claim 1, wherein: upper net rack (1) peg graft in lower floor's rack (2), upper net rack (1) and lower floor's rack (2) butt joint department on evenly be provided with a plurality of spliced eyes, adjustable structure (3) select annular knot (10), annular knot (10) pass the spliced eye and realize the location to upper net rack (1) and lower floor's rack (2).
3. A height adjustable layered sampling assembly as set forth in claim 1, wherein: the pile body (9) is connected with a river bottom or a ship.
4. A height adjustable layered sampling assembly as set forth in claim 1, wherein: the upper part of the upper net rack (1) is provided with a floating ball (4).
5. A height adjustable layered sampling assembly as set forth in claim 1, wherein: the bottom of the netting (5) is provided with a net bottom pipe (6).
6. A height adjustable layered sampling assembly as set forth in claim 1, wherein: the four traction ropes (7) are selected to be of nylon rope structures, the four nylon ropes are respectively connected with the upper end supporting angle of the upper-layer net rack (1) and the lower end supporting angle of the lower-layer net rack (2) one by one, and the free ends of the four nylon ropes are intensively combined and connected with the fixed ropes (8).
7. A method of using the height adjustable layered sampling assembly of claim 2, comprising the steps of:
(a) determining the layering distance according to hydrological conditions such as water depth and tide of a water area where the collected object is distributed, controlling the distance between the upper-layer net rack (1) and the lower-layer net rack (2) through the adjustable structure (3), opening the annular buckle (10) during adjustment, then adjusting the upper-layer net rack (1) up and down, and closing the annular buckle (10) after the adjustment is in place;
(b) determining the specification of the netting according to the belonging of the collection object;
(c) determining a sampling mode according to the water area condition;
(d) according to different implementation purposes, the method combines the ecological habits and the moving behavior characteristics of different sampling objects, determines the sampling time, determines the net release frequency and the net release time, and completes the layered sampling of the acquisition objects under the influences of different seasons, flood seasons, day and night, tides and the like.
8. The method of using a height adjustable layered sampling assembly of claim 7, wherein: in the step b, the length and mesh specification of the netting 5 and the mesh specification of the netting at the periphery of the mesh bottom tube 6 need to be set.
9. The method of using a height adjustable layered sampling assembly of claim 7, wherein: in step c, passive sampling or active sampling can be selected according to different sampling requirements. The passive sampling can be selected in a water area with larger water flow and tidal change, the layered sampling device is fixed on a fixed pile foundation of the water body, the layered sampling device is automatically opened under the action of the water flow, the opening direction of the layered sampling device can automatically rotate along with the change of the water flow and the tide, the direction of a net opening of the layered sampling device is kept opposite to the direction of the water flow, and a biological sample enters the net along with the water flow; the active sampling can fix the layered sampling device on the ship body, the layered sampling device is dragged by the ship body to displace, and the layered sampling device is dragged to complete the collection of samples.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110162163.XA CN113029666A (en) | 2021-02-05 | 2021-02-05 | Height-adjustable layered sampling device and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110162163.XA CN113029666A (en) | 2021-02-05 | 2021-02-05 | Height-adjustable layered sampling device and using method thereof |
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| CN113029666A true CN113029666A (en) | 2021-06-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166567A (en) * | 2021-12-03 | 2022-03-11 | 华东师范大学 | Synchronous collecting device for multi-water-layer plastic garbage and micro-plastic and using method |
| CN114544218A (en) * | 2022-01-26 | 2022-05-27 | 河海大学 | Automatic biological sample collecting device |
-
2021
- 2021-02-05 CN CN202110162163.XA patent/CN113029666A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166567A (en) * | 2021-12-03 | 2022-03-11 | 华东师范大学 | Synchronous collecting device for multi-water-layer plastic garbage and micro-plastic and using method |
| CN114544218A (en) * | 2022-01-26 | 2022-05-27 | 河海大学 | Automatic biological sample collecting device |
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