CN211784577U

CN211784577U - Deepwater layering synchronous sampling device

Info

Publication number: CN211784577U
Application number: CN202020541647.6U
Authority: CN
Inventors: 李艺
Original assignee: Shandong Institute Of Ecological Environment Planning
Current assignee: Shandong Institute Of Ecological Environment Planning
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2020-10-27
Anticipated expiration: 2030-04-13

Abstract

A deepwater layering synchronous sampling device comprises a traction head, a liquid extracting barrel and a heavy weight, wherein the liquid extracting barrel is provided with at least one stage, the liquid extracting barrels of all stages are sequentially connected together, the first stage of liquid extracting barrel is connected with the traction head, and the last stage of liquid extracting barrel is connected with the heavy weight; the liquid extracting barrel comprises a barrel body, the upper end of the barrel body is opened, the lower end of the barrel body is sealed, a liquid inlet pipe is arranged at the upper part of the outer side surface of the barrel body, a water tap is arranged at the lower part of the outer side surface of the barrel body, and an opening and closing sealing device is arranged at the position of the liquid inlet pipe; the opening and closing sealing devices on the extracting solution barrels at all levels are connected with the same opening mechanism. The whole device enters a water body through a traction rope, the sealing devices on the extracting solution barrels at all levels are opened simultaneously after the required depth is reached, and the water body enters the corresponding extracting solution barrels; after standing, the pull wire is released to reset the sealing device and seal the extracting solution barrel. The device carries out under the totally enclosed state of liquid extraction section of thick bamboo entering water and carrying out the water in-process, and furthest reduces the twitch to the water, and the liquid extraction section of thick bamboo of at all levels is intake simultaneously in control, has realized synchronous layering accuracy sampling.

Description

Deepwater layering synchronous sampling device

Technical Field

The utility model relates to a device for being directed at the water of the different degree of depth carries out synchronous sample belongs to water sample technical field.

Background

In the process of monitoring, managing and researching water resources, water samples of polluted water bodies need to be collected, and basic data of water body pollution is obtained through analysis and determination. It is also sometimes necessary to sample in layers at different depths. Stratified sampling is also carried out in order to study the composition of water bodies at different depths. A basin, a bucket and the like can be used in the general collection of water samples on the surface layer of a water body. The deep water sample is collected by different types of samplers with depth measuring facilities.

Chinese patent document CN207488023U discloses a bottom water stratified sampling device, which comprises an integrally sealed sampling tube, wherein the inside of the sampling tube is separated into a plurality of sampling cavities by a plurality of partition plates, a water inlet hole is provided on one side of the bottom of each sampling cavity, an exhaust hole is provided on one side of the top of each sampling cavity, a rubber piston matched with the rubber piston is provided in the sampling cavity, and each rubber piston is installed on a shaft rod. The device can not stay at any position of the water body for use, and can only sink to the bottom surface of the water body for use.

The water body layered sampling device disclosed by CN109470523A effectively solves the problem that the existing water body sampling device is complicated to operate; the technical scheme includes that the ship body is provided with a rotatable piston cylinder, a water pipe is wound outside the piston cylinder, the inner end of the water pipe is communicated with the outer end of the water pipe, the outer end of the water pipe is connected with a balancing weight, a high-pressure gas cylinder is arranged at the upper end of the piston cylinder, a piston is arranged in the piston cylinder, an annular groove is formed in the outer circular surface of the piston, an L-shaped gas hole with one end communicated with the annular groove is formed in the middle of the piston, a piston rod is arranged at the lower end of the piston, a rotatable disc is arranged on the left side of the piston rod, a plurality of sampling bottles are evenly distributed on the circumference of the disc, a through hole is formed in the left side of the piston, a sealing cover is arranged at the upper end of the through hole, a polish rod is coaxially fixed at the lower. The device is not only complicated in structure, but also cannot realize synchronous acquisition of water bodies with different heights.

SUMMERY OF THE UTILITY MODEL

The utility model discloses not enough to current water stratified sampling technique exists provides a simple structure, operation are swift, can the stratified synchronous sampling and take a sample accurate deep water stratified synchronous sampling device.

The utility model discloses a synchronous sampling device of deep water layering adopts following technical scheme:

the sampling device comprises a traction head, a liquid extracting barrel and a heavy weight, wherein the liquid extracting barrel is provided with at least one stage, the liquid extracting barrels of all stages are sequentially connected together, the first stage of liquid extracting barrel is connected with the traction head, and the last stage of liquid extracting barrel is connected with the heavy weight; the liquid extracting barrel comprises a barrel body, the upper end of the barrel body is opened, the lower end of the barrel body is sealed, a liquid inlet pipe is arranged at the upper part of the outer side surface of the barrel body, a water tap is arranged at the lower part of the outer side surface of the barrel body, and an opening and closing sealing device is arranged at the position of the liquid inlet pipe; the opening and closing sealing devices on the extracting solution barrels at all levels are connected with the same opening mechanism.

And sealing rings are arranged at the joints of the traction head, the extracting solution barrel and the heavy weight.

The traction head is provided with a rope hole for connecting and fixing a traction rope.

The liquid inlet pipe is provided with a filter screen to prevent impurities from entering.

The water inlet of the liquid inlet pipe faces upwards vertically or outwards horizontally, and the two modes ensure that the water body enters the cylinder body.

The opening and closing sealing device comprises a sealing cover, the sealing cover is arranged on the barrel through a rotating shaft, a torsional spring is arranged on the rotating shaft, two ends of the torsional spring are respectively pressed on the barrel and the sealing cover, and the torsional spring enables the sealing cover to be tightly pressed on the outer side of the liquid inlet pipe. The sealing cover is provided with a sealing gasket on the surface opposite to the liquid inlet pipe so as to achieve a better sealing effect.

The opening mechanism is a pull wire or a pull rod, when the pull rod is adopted, the upper end of the pull rod is connected with a wire, the sealing cover is provided with a hole connected with the pull wire or the pull rod, the wire or the pull rod is connected through the hole, and the sealing covers on all levels of extracting solution barrels can be opened simultaneously by pulling the pull wire, so that water enters the barrel body. The traction head is also provided with a wire guide wheel to guide the pull wire opened by the opening and closing sealing device.

The traction head is connected with a traction rope, an operator carries the device to a sampling place by taking a boat, the traction rope is released to enable the whole device to enter a water body, and the reached depth is determined through scales on the traction rope. The liquid extracting barrel is always in a sealing state in the whole sinking process. After reaching the required depth, the water body is stabilized for a while, then the stay wire is pulled upwards to simultaneously open the sealing devices on the extracting solution barrels at all levels, and the water bodies at all levels enter the corresponding extracting solution barrels; standing for a while, loosening the stay wire to reset the sealing device, sealing the extracting solution barrel and ensuring accurate sampling.

The utility model has the advantages of being simple in structure and quick in operation, make carry a liquid section of thick bamboo get into the water and the sample is accomplished to carry out under the water in-process is complete encapsulated situation, and the control of whole shape and falling speed can guarantee that furthest reduces the disturbance to the water, and the liquid section of thick bamboo simultaneous control water inlet process of carrying at different levels has realized the accurate sampling of synchronous layering.

Drawings

Fig. 1 is a schematic structural diagram of the deepwater stratified synchronous sampling device of the present invention.

Fig. 2 is a schematic view of the horizontal water inlet structure of the middle extract tube of the present invention.

In the figure: 1. the device comprises a traction rope, 2 parts of a pull wire, 3 parts of a rope hole, 4 parts of a guide wheel, 5 parts of a traction head, 6 parts of a sealing ring, 7 parts of a cylinder body, 8 parts of a liquid inlet pipe, 9 parts of a water faucet, 10 parts of a rotating shaft, 11 parts of a sealing cover, 12 parts of a pull wire hole, 13 parts of a sealing gasket, 14 parts of a filter screen, 15 parts of a first liquid extracting cylinder, 16 parts of a second liquid extracting cylinder, 17 parts of a third liquid extracting cylinder, 18 parts of a heavy weight and 19 parts of an opening and closing sealing device.

Detailed Description

The deep water layered synchronous sampling device of the utility model has the specific structure as shown in fig. 1, comprising a traction head 5, a first level liquid-extracting cylinder 15, a second liquid-extracting cylinder 16, a third liquid-extracting cylinder 17 and a heavy weight 18 which are sequentially connected from top to bottom. The traction head 5 is connected to the first-stage liquid extraction barrel 15 through threads, a rope hole 3 used for connecting and fixing the traction rope 1 is formed in the traction head, a guide wheel 4 used for guiding a pull wire 2 is further arranged on the traction head, the bottom of the traction head 5 is connected with the first-stage liquid extraction barrel 15 through threads, and a sealing ring 6 is arranged at the joint.

The structures of all levels of liquid extracting cylinders are the same, and three levels of liquid extracting cylinders are arranged in the figure 1, so that three layers of water bodies with different depths can be extracted. The number of stages of the liquid extracting barrels can be increased randomly according to the number of layers to be extracted, and the liquid extracting barrels at all stages are connected through threads, so that the assembly and the disassembly are very convenient and fast. In order to ensure accurate sampling, the joint of each level of the extracting solution cylinder is provided with a sealing ring. The liquid extracting barrel comprises a barrel body 7, both ends of the upper end and the lower end of the barrel body 7 are provided with threads, the upper end is open, and the lower end is sealed. The upper part of the outer side surface of the barrel 7 is provided with a liquid inlet pipe 8, the lower part is provided with a water tap 9, and a filter screen 14 is arranged at the position of the liquid inlet pipe 8 in order to ensure that large sundries do not enter. The liquid inlet pipe 8 is provided with an opening and closing sealing device 19.

The opening and closing sealing device 19 comprises a sealing cover 11, the sealing cover 11 is installed on the barrel 7 through a rotating shaft 10, a torsion spring is installed on the rotating shaft 10, two ends of the torsion spring are respectively pressed on the barrel and the sealing cover 11, so that the sealing cover 11 is tightly pressed on the outer side of the liquid inlet pipe 8 to seal the liquid inlet pipe 8. For better sealing effect, a sealing gasket 13 is arranged on the surface of the sealing cover 11 opposite to the liquid inlet pipe 8. The sealing cover 11 is also provided with a pull wire hole 12. The stay wire holes 12 on the sealing covers 11 in the liquid extracting barrels at all levels are fixedly connected with stay wires 2, and the sealing covers 11 on the liquid extracting barrels at all levels can be opened simultaneously by pulling the stay wires 2, so that water enters the barrel body. To ensure that the sealing covers 11 can be opened simultaneously, the stay wires 2 between adjacent liquid extracting cylinders are straightened and cannot be bent. Or each sealing cover 11 is connected with a rigid connecting rod through a stay wire hole 12, and the stay wire 2 is connected with the upper end of the rigid connecting rod.

In the water inlet process, as the hollow body in the cylinder body 7 is compressed, the size of the liquid inlet pipe 8 can ensure that the water body entering the cylinder body meets the requirement of sampling amount, or the size of the liquid inlet pipe 8 can ensure that the air in the cylinder body is pressed out. The liquid inlet of the liquid inlet pipe 8 in the figure 1 faces upwards, the liquid inlet of the liquid inlet pipe 8 in the figure 2 faces outwards in the horizontal direction, and the two structural forms can ensure that the sealing cylinder 7 can enter water after entering the water body and being opened.

The heavy weight 18 is connected with the bottom of the lowest-level extract barrel through threads, and plays a role in enabling the whole device to vertically enter and vertically stay in a water body.

The sampling process of the above device is as follows.

The traction head 5, the required number of liquid lifting cylinders and the heavy weight 18 are connected and assembled together in sequence. One end of a traction rope 1 is fixed on a traction head 5 through a rope hole 3, and a stay wire 2 is sequentially and fixedly connected with a stay wire hole 12 on each level of extract tube sealing cover 11 through a guide wheel 4 on the traction head 5. The hauling cable 1 can be marked with dimension scales, and the sampling depth of each layer can be determined because the height of each liquid extracting barrel is the same.

An operator carries the device to a sampling place by taking a boat, releases the traction rope 1, and makes the whole device enter a water body, and the achieved depth is determined by the scale of the traction rope 1. The barrel is always in a sealing state in the whole sinking process. After reaching the required depth, the stay wires 2 are pulled after the water body is stabilized, so that the sealing covers 11 of the liquid extracting cylinders at all levels are opened simultaneously, and the water bodies at all levels enter the corresponding cylinders through the liquid inlet pipes 8. The weight of the weight drop 18 is such that the entire device will not topple over when the pull cord 2 is pulled to open the sealing lid 11. Standing for a while, loosening the stay wires 2, and automatically resetting each sealing cover 11 under the action of the torsion spring to seal the liquid inlet pipe 8. In the water inlet process, the position of the water depth of the cylinder is unchanged, so that the accuracy of sampling is ensured.

The whole device is pulled out of the water surface through the hauling rope 1, the water tap 9 at the bottom of each stage of the extract barrel is opened, the sampling water body is discharged to the corresponding container, and the sampling depth is marked.

Claims

1. A deepwater layering synchronous sampling device is characterized in that: the liquid extracting device comprises a traction head, liquid extracting barrels and a heavy weight, wherein the liquid extracting barrels are at least in one stage, the liquid extracting barrels of all stages are sequentially connected together, the first-stage liquid extracting barrel is connected with the traction head, and the last-stage liquid extracting barrel is connected with the heavy weight; the liquid extracting barrel comprises a barrel body, the upper end of the barrel body is opened, the lower end of the barrel body is sealed, a liquid inlet pipe is arranged at the upper part of the outer side surface of the barrel body, a water tap is arranged at the lower part of the outer side surface of the barrel body, and an opening and closing sealing device is arranged at the position of the liquid inlet pipe; the opening and closing sealing devices on the extracting solution barrels at all levels are connected with the same opening mechanism.

2. The deepwater stratified synchronous sampling device as claimed in claim 1, wherein: and sealing rings are arranged at the joints of the traction head, the extracting solution barrel and the heavy weight.

3. The deepwater stratified synchronous sampling device as claimed in claim 1, wherein: the traction head is provided with a rope hole.

4. The deepwater stratified synchronous sampling device as claimed in claim 1, wherein: and a filter screen is arranged at the liquid inlet pipe.

5. The deepwater stratified synchronous sampling device as claimed in claim 1, wherein: the water inlet of the liquid inlet pipe faces upwards vertically or outwards horizontally.

6. The deepwater stratified synchronous sampling device as claimed in claim 1, wherein: the opening and closing sealing device comprises a sealing cover, the sealing cover is arranged on the barrel through a rotating shaft, a torsional spring is arranged on the rotating shaft, two ends of the torsional spring are respectively pressed on the barrel and the sealing cover, and the torsional spring enables the sealing cover to be tightly pressed on the outer side of the liquid inlet pipe; the sealing cover is connected with the opening mechanism.

7. The deepwater stratified synchronous sampling device as recited in claim 6, wherein: and a sealing gasket is arranged on one surface of the sealing cover opposite to the liquid inlet pipe.

8. The deepwater stratified synchronous sampling device as claimed in claim 1, wherein: the opening mechanism is a pull wire.

9. The deepwater stratified synchronous sampling device as claimed in claim 1, wherein: the opening mechanism is a pull rod, and the upper end of the pull rod is connected with a pull wire.

10. The deepwater stratified synchronous sampling device as claimed in claim 1, wherein: the traction head is provided with a wire guide wheel.