CN215178837U

CN215178837U - Hidden DGT passive sampler throwing device

Info

Publication number: CN215178837U
Application number: CN202121292511.7U
Authority: CN
Inventors: 王润梅; 刘中援; 唐建辉
Original assignee: Yantai Institute of Coastal Zone Research of CAS
Current assignee: Yantai Institute of Coastal Zone Research of CAS
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-12-14
Anticipated expiration: 2031-06-10

Abstract

The utility model relates to a passive sampler throwing device, in particular to a hidden DGT passive sampler throwing device for carrying disc DGT and probe DGT, which comprises a buoyancy tank, a carrying frame, a flow direction mark, an adjustable rope, an anchor block and a throwing marking rope, wherein one end of the carrying frame is fixedly connected with the buoyancy tank, the other end is provided with the flow direction mark, and the carrying frame is respectively provided with the disc DGT and the probe DGT; the anchor block is connected to the buoyancy tank through an adjustable rope, and a throwing marking rope is tied on the anchor block. When in use, the DGT passive sampler and the thermometer are fixed on the carrying frame, and the anchor block together with the whole device is thrown to a preset water area; after sampling is finished, the throwing mark rope can be pulled to be quickly withdrawn. The utility model is not limited by the environmental water depth, so that the DGT passive sampler is continuously and stably suspended in the preset water depth and is always parallel to the water flow direction, and accurate in-situ sampling is realized; the safety coefficient is high, and the interference to the water environment is small; the whole system has strong concealment and greatly improves the recovery rate of the passive sampler.

Description

Hidden DGT passive sampler throwing device

Technical Field

The utility model relates to a passive sample thief input device, specifically speaking are a hidden DGT passive sample thief input device for carrying on disc DGT and probe DGT.

Background

The DGT passive sampler can be used for in-situ monitoring of inorganic and organic pollutants (such as heavy metals, nutrient salts, perfluorinated compounds and the like) in water bodies such as rivers, lakes, oceans and the like, but the existing buoy or pile-driving throwing device has the following disadvantages:

1. the depth of the DGT passive sampler and the direction of the sampling window are easily influenced and changed by turbulence, so that the sampling accuracy is influenced.

2. The arrangement needs to be carried out by means of a skin raft or an operator to step into the water body, the operation is complex and time-consuming, the safety coefficient is low, and the interference to the water environment is large.

3. Buoys and the like have poor concealment and are easy to lose and artificially damage, so that the recovery rate of the passive sampler is low.

SUMMERY OF THE UTILITY MODEL

Put in the above-mentioned drawback that exists to current DGT passive sample thief, the utility model aims to provide a device is put in to hidden DGT passive sample thief.

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

the utility model comprises a buoyancy tank, a carrying frame, a flow direction mark, an adjustable rope, an anchor block and a throwing marking rope, wherein one end of the carrying frame is fixedly connected with the buoyancy tank, the other end is provided with the flow direction mark, and the carrying frame is respectively provided with a disc DGT and a probe DGT; the anchor block is connected to the buoyancy tank through an adjustable rope, and a throwing marking rope is tied on the anchor block.

Wherein: the lapping frame is provided with a plurality of disc DGT fixing holes, the outer edge of each disc DGT fixing hole is provided with a buckle, the buckle is mounted on the lapping frame, a disc DGT is inserted into each disc DGT fixing hole, and the disc DGT is fixed through the buckle.

The outer edges of two sides of each disk DGT fixing hole are symmetrically provided with buckles.

The lapping frame is respectively provided with a probe DGT fixing groove and a probe DGT fixing hole, and the probe DGT is inserted into the probe DGT fixing groove and is fixedly connected with the probe DGT fixing hole.

A thermometer carrying frame is installed on the carrying frame, and a thermometer is installed in the thermometer carrying frame.

The thermometer carrying frame is provided with a through hole.

The buoyancy tank is of a sealed hollow structure, and the inner cavity of the buoyancy tank is filled with gas.

The two sides of the front end of the buoyancy tank are symmetrically provided with stabilizing wings, and the tail end of the buoyancy tank is provided with an empennage.

The bottom of the buoyancy tank is provided with a grommet, one end of the adjustable rope is tied to the grommet, and the other end of the adjustable rope is connected with the anchor block.

The utility model discloses an advantage does with positive effect:

1. the utility model discloses do not receive the environmental depth of water restriction, make the passive sample thief of DGT continuous stable suspend in the preset depth of water and parallel with the water flow direction all the time, realize accurate normal position sampling.

2. The utility model discloses lay and retrieve easy operation quick, factor of safety is high, and little to the water environment interference.

3. The utility model discloses entire system is disguised strong, has improved the rate of recovery of passive sample thief greatly.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

wherein: the device comprises a buoyancy tank 1, a stabilizing wing 2, a lapping frame 3, a disk DGT fixing hole 4, a thermometer lapping frame 5, a through hole 6, a flow direction indicator 7, a probe DGT fixing groove 8, a probe DGT fixing hole 9, a buckle 10, a grommet 11, an adjustable rope 12, an anchor block 13, a mark throwing rope 14 and a tail wing 15.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the utility model comprises a buoyancy tank 1, a carrying frame 3, a flow direction marker 7, an adjustable rope 12, an anchor block 13 and a throwing marking rope 14, wherein one end of the carrying frame 3 is fixedly connected with the front end of the buoyancy tank 1, the other end is provided with the flow direction marker 7, and the carrying frame 3 is respectively provided with a disc DGT and a probe DGT; anchor blocks 13 are connected to the pontoon 1 by adjustable ropes 12, to which anchor blocks 13 drop marker ropes 14 are tied.

The buoyancy tank 1 of the embodiment is a sealed hollow structure, and the inner cavity is filled with gas (which can be air); in order to increase the utility model discloses a stability is equipped with the stationary vane 2 at the bilateral symmetry of flotation tank 1 front end, and the end of flotation tank 1 is equipped with fin 15, reduces the utility model discloses rock about, from top to bottom, make the utility model discloses it is more reliable and more stable in aqueous.

The carrying frame 3 of the embodiment is provided with a plurality of disc DGT fixing holes 4, the outer edge of each disc DGT fixing hole 4 is provided with a buckle 10, the buckle 10 is installed on the carrying frame 3, the disc DGT is inserted into each disc DGT fixing hole 4, and the disc DGT is fixed through the buckle 10. The front end and the rear end of the carrying frame 3 of the embodiment are respectively provided with a plurality of disk DGT fixing holes 4, and the outer edges of two sides of each disk DGT fixing hole 4 are symmetrically provided with buckles 10. One end of the buckle 10 of the embodiment is hinged on the overlap frame 3, and the other end can be rotated into the disk DGT fixing hole 4 after being inserted into the disk DGT, so as to fix the disk DGT.

The carrier 3 of this embodiment is provided with a probe DGT fixing groove 8 and a probe DGT fixing hole 9, respectively, and the probe DGT is inserted into the probe DGT fixing groove 8 and is fixedly connected to the probe DGT fixing hole 9. The probe DGT fixing groove 8 and the probe DGT fixing hole 9 of this embodiment are located between the disk DGT fixing holes 4 formed at the front and rear ends.

A thermometer carrying frame 5 is arranged at the middle section of the upper part of the carrying frame 3 of the embodiment, and a thermometer is arranged in the thermometer carrying frame 5; the thermometer carrying frame 5 is provided with a through hole 6, and the through hole 6 can enable water flow to flow smoothly, so that water flow resistance is reduced.

The bottom of the buoyancy tank 1 of this embodiment is provided with a grommet 11, and one end of an adjustable rope 12 is tied to the grommet 11, and the other end is connected with an anchor block 13.

The utility model discloses a theory of operation does:

when the disk DGT fixing device is used, one disk DGT is inserted into each disk DGT fixing hole 4, and the disk DGT is fixed through the buckle 10. The probe DGT is inserted into the probe DGT fixing groove 8, and then a binding belt is used for penetrating through a hole on the handle of the probe DGT and then is connected and fixed with the probe DGT fixing hole 9. The thermometer is placed in the thermometer mounting frame 5. Then, the length of rope 12 with adjustable adjustment, the best length control of rope 12 with adjustable is when anchor block 13 falls into the river bottom, and concealed DGT throws the device and should be at the required degree of depth below the surface of water, throws anchor block 13 again together with the utility model discloses together throw in predetermined waters, then hide and be fixed in the bank under water putting in mark rope 14. After sampling is finished, the worker pulls the throwing mark rope 14 to quickly recover the whole system and the DGT passive sampler.

The utility model discloses a directly put in the mode, it is less to the river bottom disturbance, avoid sediment resuspension to influence quality of water, improve normal position monitoring data's accuracy. The utility model discloses lay fast and hide all the time in under water, obviously reduce the crowd and expose, effectively reduce stolen or damaged probability, effectively improve the passive sample thief rate of recovery of DGT.

Claims

1. The utility model provides a device is put in to passive sampler of hidden DGT which characterized in that: the device comprises a buoyancy tank (1), a carrying frame (3), a flow direction marker (7), an adjustable rope (12), an anchor block (13) and a throwing marking rope (14), wherein one end of the carrying frame (3) is fixedly connected with the buoyancy tank (1), the other end of the carrying frame is provided with the flow direction marker (7), and the carrying frame (3) is respectively provided with a disc DGT and a probe DGT; the anchor block (13) is connected to the buoyancy tank (1) through an adjustable rope (12), and a throwing marking rope (14) is tied on the anchor block (13).

2. The concealed DGT passive sampler launching device of claim 1, wherein: the disc DGT fixing device is characterized in that a plurality of disc DGT fixing holes (4) are formed in the carrying frame (3), a buckle (10) is arranged on the outer edge of each disc DGT fixing hole (4), the buckle (10) is installed on the carrying frame (3), a disc DGT is inserted into each disc DGT fixing hole (4), and the disc DGT is fixed through the buckle (10).

3. The concealed DGT passive sampler launching device of claim 2, wherein: buckles (10) are symmetrically arranged on the outer edges of two sides of each disk DGT fixing hole (4).

4. The concealed DGT passive sampler launching device of claim 1, wherein: the lapping frame (3) is respectively provided with a probe DGT fixing groove (8) and a probe DGT fixing hole (9), and the probe DGT is inserted into the probe DGT fixing groove (8) and is fixedly connected with the probe DGT fixing hole (9).

5. The concealed DGT passive sampler launching device of claim 1, wherein: the thermometer carrying frame (5) is installed on the carrying frame (3), and a thermometer is installed in the thermometer carrying frame (5).

6. The concealed DGT passive sampler launching device of claim 5, wherein: the thermometer carrying frame (5) is provided with a through hole (6).

7. The concealed DGT passive sampler launching device of claim 1, wherein: the buoyancy tank (1) is of a sealed hollow structure, and the inner cavity of the buoyancy tank is filled with gas.

8. The concealed DGT passive sampler launching device of claim 1, wherein: stabilizing wings (2) are symmetrically arranged on two sides of the front end of the floating box (1), and a tail wing (15) is arranged at the tail end of the floating box (1).

9. The concealed DGT passive sampler launching device of claim 1, wherein: the bottom of the buoyancy tank (1) is provided with a grommet (11), one end of the adjustable rope (12) is tied on the grommet (11), and the other end of the adjustable rope is connected with the anchor block (13).