CN112414772B

CN112414772B - Deep sea automatic lifting layered water sampling device

Info

Publication number: CN112414772B
Application number: CN202011115411.7A
Authority: CN
Inventors: 顾珂涵; 顾沈明; 宿刚; 吴远红
Original assignee: Zhejiang Ocean University ZJOU
Current assignee: Zhejiang Ocean University ZJOU
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2023-05-12
Anticipated expiration: 2040-10-19
Also published as: CN112414772A

Abstract

The invention discloses a deep sea automatic lifting layered water sampling device which comprises a sampling shell, wherein lifting pieces for controlling the lifting and descending of the sampling shell are arranged at the bottom of the sampling shell, the sampling shell is disc-shaped, the middle part of the sampling shell is vertically penetrated, a plurality of sampling units are arranged on the shell and distributed at the same angle with the center of the sampling shell, a plurality of through holes are formed in the inner edge of the sampling shell, the through holes are communicated with collecting holes formed in the inner side of the sampling units, a sampling limiting piece is accommodated in the middle part of the sampling shell, and the sampling limiting piece can rotate along the axial lead direction of the sampling shell. According to the deep sea automatic lifting layered water sampling device, the self-adaptive pressure adapting piece is arranged, the pressure intensity is continuously increased along with the submergence of the water sampling device, so that the spring length and the elastic coefficient of each group can be set in advance, different sampling units are controlled to sample and collect in cooperation with the sampling limiting piece, and water samples in different specific depths of the deep sea can be collected more accurately.

Description

Deep sea automatic lifting layered water sampling device

Technical Field

The invention relates to the technical field of sampling equipment, in particular to a deep sea automatic lifting layered water sampling device,

background

The water sampling work is an important content of water environment scientific research and water environment protection and management work, and is a premise and foundation for smoothly developing various research works for collecting water samples at different depths. The water body in the water area can generate layering effect under the influence of factors such as substances, water flow, temperature and the like, the hydrologic, physical, chemical, biological and other information of different water layers are different, the difference of the water body in different layers is acquired and analyzed, and the water body is an indispensable content of subjects such as environmental science, ocean science and the like, and is widely applied to practical fields such as ecological environment evaluation in the water area, pollution accident investigation and the like.

The current water sampler is mainly a fixed-depth water sampler, namely the water sampler is lowered to a water layer with a specific depth through a rope, and then water samples are collected from the water layer with the specific depth through the water sampler; however, in the water production process, the specific sea water depth of each sea area is difficult to determine by an operator; this results in inconvenient operation of the current depth water sampler when collecting deep sea water samples, and difficulty in accurately collecting water samples in different specific depths of deep sea.

In order to solve the problems, the proposal is generated.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the invention provides a deep sea automatic lifting layered water sampling device, which solves the problems in the prior art.

(II) technical scheme

In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a deep sea automatic rising layering water sampling device, includes sampling shell, sampling shell bottom is equipped with the lifting piece that control it rose, descends, sampling shell is discoid, link up from top to bottom at its middle part, be equipped with a plurality of sampling units on the casing, and with the central equiangular distribution of sampling shell, a plurality of through-holes have been seted up to sampling shell's inner edge, and the through-hole communicates with each other with the collection mouth that sampling unit inboard was equipped with, sampling shell's middle part holding has sampling locating part, and its axial lead direction of can follow sampling shell carries out the autorotation, and its circumference hugs closely sampling shell's inner edge, sampling locating part only supplies one of them sampling unit to sample and collect, and constantly change different sampling units at the rotation in-process and take a sample, still include self-adaptation pressure adapting piece, along with sampling device's dive and pressure constantly increase, self-adaptation pressure adapting piece can drive sampling locating part under the effect of pressure and rotate.

Preferably, the sampling unit comprises a sampling box, a conducting pipe and a connector, wherein the top of the sampling shell is provided with a notch, the sampling box can be placed in the notch, the inlet end of the sampling box is embedded and communicated with the conducting pipe, the inner side end of the conducting pipe is connected and communicated with the connector, the connector is connected with the sampling shell, the sampling port is formed in the inner side end of the connector, the conducting pipe is obliquely arranged, and the middle part of the sampling box is obliquely downwards arranged outwards.

Preferably, the upside swing joint of sampling casing has and is annular spacing lid, the bottom circumference of spacing lid is equipped with a plurality of fixture blocks, and the draw-in groove has been seted up to sampling casing top circumference corresponding department, and draw-in groove and fixture block can the block each other, the outside end of gathering the box is connected with and extends the lug, and spacing lid is through the pressfitting extension lug come spacing outside end of gathering the box at the lid in-process of closing.

Preferably, the sampling limiting part comprises a rotating seat, a rotating shaft, a gear and a U-shaped supporting rod, wherein the bottom of the rotating seat is connected with the rotating shaft, the gear is sleeved on the lower part of the rotating shaft, one end of the U-shaped supporting rod is connected with the bottom of the sampling shell, the other end of the U-shaped supporting rod is positioned in the middle of the sampling shell, the lower end of the rotating shaft is pivoted on the U-shaped supporting rod, the end part of the U-shaped supporting rod is also connected with a cladding frame surrounding the gear, the rotating seat is disc-shaped, the periphery of the rotating seat is tightly attached to the hollow part of the sampling shell, a notch is formed in the middle of the rotating seat, a through hole is radially formed in the rotating seat and penetrates through the outer wall of the notch, and the size of the through hole is larger than or equal to the size of the collecting port.

Preferably, the self-adaptation pressure adapting piece includes hollow square frame, sideslip board, unilaterally arranges the tooth board of tooth, square frame sets firmly in the bottom of sampling casing, in square frame was located to the sideslip board, and the inner wall looks butt of its both ends and sideslip board both sides, be equipped with the spring between one side of sideslip board and the inner wall of square frame, the opposite side is connected with the tooth board, the through-hole has been seted up on the square frame, can supply the tooth board to carry out relative movement, the cladding frame has seted up uncovered towards one side of tooth board, can supply the intermeshing between tooth board and the gear of corresponding department.

Preferably, the springs are arranged in a plurality, two springs are used as a group, the lengths of the springs in each group are different, the springs in each group are symmetrically arranged in the middle of the square frame, and the number of the sampling units is the same as the number of the groups of the springs.

(III) beneficial effects

After the technical scheme is adopted, compared with the prior art, the invention has the following advantages: according to the deep sea automatic lifting layered water sampling device, the self-adaptive pressure adapting piece is arranged, the pressure intensity is continuously increased along with the submergence of the water sampling device, so that the spring length and the elastic coefficient of each group can be set in advance, different sampling units are controlled to sample and collect in cooperation with the sampling limiting piece, and water samples in different specific depths of the deep sea can be collected more accurately.

Drawings

FIG. 1 is a schematic diagram of the present invention;

FIG. 2 is a schematic view of the whole spacing cover of the present invention after being disassembled;

FIG. 3 is a schematic view of the rotary base of the present invention after the rotary base is disassembled;

FIG. 4 is a schematic bottom view of the present invention;

FIG. 5 is a schematic view of the overall bottom surface of the cladding frame of the present invention after disassembly;

fig. 6 is a cross-sectional elevation view of an adaptive pressure-adapting structure according to the present invention.

In the figure: 1 sampling shell, 2 lifting piece, 21 air pump, 22 gasbag, 23 balancing weight, 3 sampling unit, 31 collection box, 32 conducting pipe, 33 connector, 4 opening, 5 collection opening, 6 sampling spacing piece, 61 rotary seat, 62 pivot, 63 gear, 64U shape bracing piece, 7 self-adaptation pressure adapter, 71 square frame, 72 sideslip board, 73 tooth dental lamina, 8 notch, 9 spacing lid, 10 fixture block, 11 draw-in groove, 12 extension lug, 13 cladding frame, 14 notch, 15 through-hole, 16 spring, 17 are uncovered.

Detailed Description

The invention is further illustrated by the figures and examples.

As shown in fig. 1-6: the utility model provides a deep sea automatic rising layering water sampling device, including sampling casing 1, sampling casing 1 is discoid, link up from top to bottom in its middle part, be equipped with a plurality of sampling units 3 on the casing, and with the equiangular distribution in the center of sampling casing 1, a plurality of through-holes 4 have been seted up to sampling casing 1's inner edge, the through-hole 4 communicates with each other with the collection mouth 5 that sampling unit 3 inboard was equipped with, sampling casing 1's middle part holding has sampling locating part 6, sampling locating part 6 can rotate along sampling casing 1's axial lead direction, and its circumference hugs closely sampling casing 1's inner edge, sampling locating part 6 only supplies one of them sampling unit 3 to sample and collects, and constantly change different sampling units 3 and sample at the rotation in-process.

The sampling unit 3 includes collection box 31, conducting pipe 32, connector 33, and notch 8 has been seted up at sampling shell 1 top, and collection box 31 can be placed in notch 8, and collection box 31's entrance point and conducting pipe 32 gomphosis mutually communicate with each other, and conducting pipe 32's inboard end links to each other and communicates with each other with connector 33, and connector 33 links to each other with sampling shell 1, and gathers mouthful 5 and set up in connector 33's inboard end, and conducting pipe 32 slope setting to outwards be slope downward arrangement by collection box 31 middle part.

The upside swing joint of sampling casing 1 has and is annular spacing lid 9, and the bottom circumference of spacing lid 9 is equipped with a plurality of fixture blocks 10, and draw-in groove 11 has been seted up to sampling casing 1 top circumference corresponding department, and draw-in groove 11 and fixture block 10 can block each other, gathers the outside end of box 31 and be connected with and extend lug 12, and spacing lid 9 is through the outside end that the lug 12 comes spacing collection box 31 of pressfitting extension in-process lid. The inner end of the collection box 31 is supported and propped against the conduction pipe 32 which is embedded with the collection box, so that the collection box 31 can be fixed.

The upper portion of collection box 31 is connected with the pull ring, is convenient for the hand draws. When the collection box 31 is disassembled for sampling, the limiting cover 9 is firstly disassembled, and then the collection box 31 is obliquely taken down to the outer side through the pull ring.

The sampling limiting piece 6 comprises a rotating seat 61, a rotating shaft 62, a gear 63 and a U-shaped supporting rod 64, wherein the bottom of the rotating seat 61 is connected with the rotating shaft 62, the gear 63 is sleeved on the lower portion of the rotating shaft 62, one end of the U-shaped supporting rod 64 is connected with the bottom of the sampling shell 1, the other end of the U-shaped supporting rod is located in the middle of the sampling shell 1, and the lower end of the rotating shaft 62 is pivoted on the U-shaped supporting rod 64.

The rotary seat 61 is disc-shaped, the periphery of the rotary seat is tightly attached to the hollow part of the sampling shell 1, the middle part of the rotary seat 61 is provided with a notch 14, a through hole 15 is radially formed in the rotary seat 61, the through hole 15 penetrates through the notch 14 and the outer wall of the rotary seat 61, and the size of the through hole 15 is larger than or equal to that of the sampling port 5.

When the through hole 15 on the rotating seat 61 rotates along with the rotating seat 61 to correspond to the collection port 5 arranged on the corresponding connector 33, the collection port 5 is used for sampling, namely, water is guided into the collection port 5 of the connector 33 from the through hole 15 in the notch 14 of the rotating seat 61 under the action of underwater pressure, and then is conducted to the collection box 31 for collection through the conducting pipe 32.

It should be noted that, because the rotating seat 61 needs to rotate, it cannot always be attached to and sealed with the hollow portion of the sampling housing 1, so that the sampling port 5 of the sampling unit 3 can slightly enter water samples with different depths to mix, and the sampling precision is affected. Therefore, the flexible block is circumferentially arranged at the corresponding position of the outer edge of the rotating seat 61 (except for the through position), and the corresponding collecting port 5 can be closed by the flexible block, so that a good sealing effect is realized. Of course, in order not to affect the rotation of the rotating seat 61 and prevent the clamping problem, the collection port 5 needs to be relatively smaller, and the corresponding flexible block is also smaller.

The water sampling device further comprises a self-adaptive pressure adapting piece 7, the pressure is continuously increased along with the submergence of the water sampling device, and the self-adaptive pressure adapting piece 7 can drive the sampling limiting piece 6 to rotate under the action of the pressure. The method comprises the following steps:

the self-adaptive pressure intensity adapter 7 comprises a hollow square frame 71, a transverse moving plate 72 and a tooth plate 73 with teeth arranged on one side, wherein the square frame 71 is fixedly arranged at the bottom of the sampling shell 1, the transverse moving plate 72 is arranged in the square frame 71, two ends of the transverse moving plate 72 are in butt joint with the inner walls on two sides of the transverse moving plate 72, a spring 16 is arranged between one side of the transverse moving plate 72 and the inner wall of the square frame 71, the other side of the transverse moving plate 72 is connected with the tooth plate 73, a through hole 4 is formed in the square frame 71, and the tooth plate 73 can be relatively moved.

The end of the U-shaped support rod 64 is also connected to a cladding frame 13 which encloses the gear 63. The cover frame 13 is provided with an opening 17 at one side facing the tooth plate 73, and the tooth plate 73 and the gear 63 at the corresponding position can be meshed with each other.

According to the pressure formula: p=ρ×g×h, i.e. the pressure is proportional to the water depth, whereas under water, 1 atmosphere pressure can be increased every 10 m. Meanwhile, the pressure generated by the pressure under water circumferentially surrounds the object and is pressed inward.

The springs 16 are arranged in a plurality of groups, two groups of springs 16 are arranged, the lengths of the springs 16 in each group are different, the springs 16 in each group are symmetrically arranged in the middle of the square frame 71, and the number of the sampling units 3 is the same as the number of the groups of springs 16.

The length of the springs 16 of each group can be set in advance according to the different depths of the water sampling device to be lowered.

Therefore, in the adaptive pressure adapting member 7 provided in this embodiment, there is a certain surplus between the acting force between the tooth plate 73 and the square frame 71, that is, when the tooth plate 73 is subjected to the underwater pressure, the tooth plate 73 can be pressed against the square frame 71 (mainly because there is air between the traversing plate 72 and the square frame 71, and the traversing plate 72 can be compressed under the condition of the external pressure so as to move), and the distance that the tooth plate 73 can be moved can be controlled by matching with the reverse elastic force (f=kx) of the spring 16 and the water depth. In the moving process of the tooth plate 73, the gear 63 can be driven to rotate, namely the rotating seat 61 can be indirectly driven to rotate, and further, water samples in a specific distance of the deep sea can be collected more accurately.

The bottom of the sampling shell 1 is provided with a lifting piece 2 for controlling the lifting and descending of the sampling shell, the lifting piece 2 comprises an air pump 21, an air bag 22 and a balancing weight 23, the air pump 21 is connected to the bottom of the sampling shell 1, the output end of the air pump is communicated with one side of the air bag 22, and the balancing weight 23 is arranged at the bottom of the sampling shell 1. The air bag 22 is also provided with an electromagnetic valve for discharging the air in the air bag 22, so that the lifting piece 2 can control the seawater of the required measuring depth relatively accurately (the air pump 21 and the electromagnetic valve are connected into a PLC control program for control). Of course, the lifting piece 2 can also adopt only one long rope, and the submergence depth of the lifting piece can be controlled according to the submergence length of the long rope by the self gravity of the water sampling device.

The above-described embodiments are intended to suggest that, in view of the above description, various changes and modifications may be made by the worker without departing from the spirit of the invention. The technical scope of the present invention is not limited to the description, but the scope of protection must be determined according to the scope of claims.

Claims

1. The utility model provides a deep sea automatic rising layering adopts water installation which characterized in that: the sampling device comprises a sampling shell, wherein the sampling shell is disc-shaped, the middle part of the sampling shell is vertically communicated, a plurality of sampling units are arranged on the sampling shell and distributed at equal angles in the center of the sampling shell, a plurality of through holes are formed in the inner edge of the sampling shell and are communicated with a collection port formed in the inner side of the sampling unit, a sampling limiting piece is accommodated in the middle part of the sampling shell and can rotate along the axial line direction of the sampling shell, the sampling limiting piece is tightly attached to the inner edge of the sampling shell in the circumferential direction, only one sampling unit is used for sampling and collecting, and in the rotation process, different sampling units are continuously replaced for sampling, and the sampling device further comprises a self-adaptive pressure intensity adapter, wherein the self-adaptive pressure intensity adapter can drive the sampling limiting piece to rotate under the action of pressure intensity;

the sampling limiting piece comprises a rotating seat, a rotating shaft, a gear and a U-shaped supporting rod, wherein the bottom of the rotating seat is connected with the rotating shaft, the gear is sleeved on the lower part of the rotating shaft, one end of the U-shaped supporting rod is connected with the bottom of the sampling shell, the other end of the U-shaped supporting rod is positioned in the middle of the sampling shell, the lower end of the rotating shaft is pivoted on the U-shaped supporting rod, the end part of the U-shaped supporting rod is also connected with a cladding frame surrounding the gear, the rotating seat is disc-shaped, the periphery of the rotating seat is tightly attached to the hollow part of the sampling shell, a notch is formed in the middle of the rotating seat, a through hole is radially formed in the rotating seat, the through hole penetrates through the notch and the outer wall of the rotating seat, and the size of the through hole is larger than or equal to the size of a collecting port;

the self-adaptive pressure adapting piece comprises a hollow square frame, a transverse moving plate and a tooth plate with teeth arranged on one side, wherein the square frame is fixedly arranged at the bottom of the sampling shell, the transverse moving plate is arranged in the square frame, two ends of the transverse moving plate are in butt joint with the inner walls on two sides of the transverse moving plate, a spring is arranged between one side of the transverse moving plate and the inner wall of the square frame, the other side of the transverse moving plate is connected with the tooth plate, a through hole is formed in the square frame and can be used for relative movement of the tooth plate, and an opening is formed in one side, facing the tooth plate, of the coating frame and can be used for mutual engagement between the tooth plate and a gear at the corresponding position;

the springs are arranged in a plurality, two springs are used as a group, the lengths of the springs in each group are different, the springs in each group are symmetrically arranged in the middle of the square frame, and the number of the sampling units is the same as the number of the groups of the springs.

2. The deep sea automatic lifting layered water sampling device according to claim 1, wherein: the sampling unit comprises a sampling box, a conducting tube and a connector, wherein the top of the sampling shell is provided with a notch, the sampling box can be placed in the notch, the inlet end of the sampling box is embedded and communicated with the conducting tube, the inner side end of the conducting tube is connected and communicated with the connector, the connector is connected with the sampling shell, the sampling port is formed in the inner side end of the connector, the conducting tube is obliquely arranged, and the middle of the sampling box is obliquely downwards arranged outwards.

3. The deep sea automatic lifting layered water sampling device according to claim 2, wherein: the upside swing joint of sampling casing has and is annular spacing lid, the bottom circumference of spacing lid is equipped with a plurality of fixture blocks, and the draw-in groove has been seted up to sampling casing top circumference corresponding department, and draw-in groove and fixture block can the block each other, the outside end of gathering the box is connected with and extends the lug, and spacing lid is through the pressfitting extension lug come spacing outside end of gathering the box at the lid in-process.