CN115479804B

CN115479804B - Ocean floating type automatic sampler based on sequence controller

Info

Publication number: CN115479804B
Application number: CN202211140238.5A
Authority: CN
Inventors: 王奎
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-06-09
Anticipated expiration: 2042-09-20
Also published as: CN115479804A

Abstract

The invention discloses a marine floating type automatic sampler based on a sequence controller, which comprises a floating ball, wherein an automatic sampler is arranged below the inner part of the floating ball, the automatic sampler comprises sampling bottles distributed in a surrounding manner, a filter head and an electromagnetic one-way valve are connected below any one of the sampling bottles, a water pump is connected to a pipeline above a plurality of sampling bottles, a singlechip and a motor are further arranged in the automatic sampler, a rotating shaft of the motor is fixedly connected with a rotating valve, a plurality of swingable auxiliary components are connected around the side of the floating ball, an annular floating body is arranged outside the bottom end of the automatic sampler, and a plurality of hinge components are inserted into the annular floating body. According to the invention, the floating ball floats on the sea surface, and the motor is controlled to rotate by utilizing the sequence control program arranged in the singlechip, so that the automatic timed collection of the water sample on the upper layer of the sea can be realized, the structure is simple, the protection effect is realized, and the seawater sampling detection accuracy is improved.

Description

Ocean floating type automatic sampler based on sequence controller

Technical Field

The invention belongs to the technical field of seawater sample collection, and particularly relates to a marine floating type automatic sampler based on a sequence controller.

Background

Ocean is the largest gene resource pool on earth. In particular, deep sea areas are rich in oil and gas resources such as petroleum and natural gas, which are the largest potential strategic resource bases on the earth that are not fully known and utilized by human beings, and in recent years, along with the aggravation of energy problems, the importance of deep sea energy development and research is also increasingly raised. Therefore, international society is generally paying attention to international sea area genetic resources. Significant potential application value of marine genetic resources is recognized in both developed and developing countries. Therefore, as ocean development proceeds, technology for extracting ocean water samples is increasingly paid attention to. The sampling of submarine sediments and seawater is the first step of searching and exploring marine oil and gas resources and microorganism resources, and is the basis for engineering geological exploration and environmental ecological research.

The extraction modes of the ocean water sample are numerous, and the method mainly comprises the following working modes at present: the sampling modes of manual diving, pipeline pumping, mechanical equipment diving and the like are set, and the traditional sampler is such as a gravity box type, a grab bucket, a piston column sampler and the like. However, a large amount of ropes are required to be put in the traditional samplers in the using and recycling processes, the putting depth is extremely easy to limit due to the length of the ropes, the damage probability of the device is large due to the bottom reef when the device is used for sampling in water, the use cost is increased, and a seawater sample with a certain time interval is required to be obtained when scientists are researching the chemical components of the seabed water body and the biochemical circulating process of the aquatic system, so that most of the current seawater sampling devices cannot meet the requirements. The invention patent of China, application number 201510403876.5 and application date 2015.07.08 disclose a timing seawater sampling device, the device controls the timing rotation of a motor by setting the interruption time in a singlechip, so that a piston rod compression bar stretches in a needle cylinder, the seawater sample with fixed time intervals is collected, the contrast research of the seawater sample is convenient, the seawater is collected in the needle cylinder, the quantitative sampling and the sampling are convenient, but the device is easy to suffer from the impact of sea waves to turn on one side when being suspended in water, and a one-way valve at the bottom of the device is easy to impact on submarine reefs to cause the damage of the device in the collecting process, so that the use cost and the maintenance cost are increased.

Disclosure of Invention

The invention aims to provide a marine floating automatic sampler based on a sequence controller, which can automatically collect marine water sample at fixed time and has higher floating stability and anti-collision effect.

The technical scheme adopted by the invention for achieving the purpose is as follows:

an automatic marine floating sampler based on a sequence controller, comprising: the floater below is equipped with automatic sampler, and the floater outside is around laying a plurality of auxiliary assembly in the horizontal direction, and automatic sampler is bottom open-ended cylindrical shell, and automatic sampler is around laying a plurality of sampling bottles of interconnect in the ring, and the bottom of arbitrary sampling bottle is connected with filter head and electromagnetic check valve, and automatic sampler inner wall is fixed with first baffle above the sampling bottle, has placed the water pump on the first baffle, and the water pump is connected with the house steward, and the up end intercommunication of arbitrary sampling bottle has the branch pipe, and the branch pipe is upwards converged and with house steward intercommunication. The floater provides whole buoyancy, guarantee that the device floats in the surface of water collection upper water sample, thereby the floater forms the protection to the automatic acquisition ware outside top, thereby avoid outside striking to produce vibration to interfere the water pump work, when the outside water body of different directions assaults the floater, rivers can flow along the floater surface and alleviate impact force, avoid the device to topple on the one hand, on the other hand avoid the device to be washed away by the torrent and lead to the device unable water sample of gathering the appointed region, the difficulty of retrieving has also been reduced, the water pump changes each sampling bottle internal pressure through house steward and being in charge, outside water passes through electromagnetic check valve in proper order under the pressure effect, the filter head finally gets into the sampling bottle and accomplishes the water sample automatic acquisition, electromagnetic check valve effectively prevents that the water sample of gathering from flowing downwards, avoid the sample body to run off and lead to the water sample testing result inaccurate, the filter head filters large-scale granule in the water, avoid the particulate matter to form the jam in the sampling bottle, also avoid the granule to pile up in the sampling bottle and increase device weight.

Preferably, a second partition plate is arranged below the inner part of the automatic sampler, each filter head penetrates through the second partition plate and forms connection, a motor is installed at the center of the upper part of the second partition plate, a rotating shaft of the motor penetrates through the second partition plate and the tail end of the rotating shaft is located below the electromagnetic one-way valve, a rotating valve is connected to the tail end of the rotating shaft of the motor, and a circulation port is formed in the rotating valve. The second baffle is used for setting up the motor, and the motor is located automatic sampler below center, has reduced the whole focus of device, has promoted the showy stability of device, and the motor can drive through rotatory motor shaft and rotate the valve and rotate after starting to make the circulation mouth on the valve of rotating pass through the below of each electromagnetic check valve in proper order, thereby make the water be collected in each sampling bottle at different periods thereby the device obtains richer water sample, thereby be favorable to promoting water sample detection data accuracy.

Preferably, the internal top end of the automatic sampler is fixed with a GPS (Global positioning System) locator and a singlechip, and a motor and a water pump are respectively provided with a control module in wireless connection with the singlechip. The GPS positioner is convenient for personnel to accurately find out the device and recycle, avoids the device to float to a far distance away from the shore along with water flow and is difficult to be found by the personnel on the shore, a timing program and an interrupt program are written in the singlechip, and pulse signals are sent out to control the motor to rotate at a fixed angle at fixed time, so that each sampling bottle is completed to accurately sample in sequence, and the accuracy of water sample collection is improved.

Preferably, the auxiliary assembly comprises a first auxiliary floating rod and a second auxiliary floating rod, one end of the first auxiliary floating rod is hinged with the floating ball, the other end of the first auxiliary floating rod is fixed with a cross shaft universal joint, the first auxiliary floating rod is connected with the second auxiliary floating rod through the cross shaft universal joint, and the tail end of the second auxiliary floating rod is rotatably provided with an auxiliary floating block. The auxiliary floating block, the first auxiliary floating rod and the second auxiliary floating rod increase the integral buoyancy of the device, the first auxiliary floating rod and the second auxiliary floating rod enable the auxiliary floating block to encircle the periphery of the floating ball with larger circumference diameter, the floating stability of the device is increased, when sea waves impact the floating ball, the auxiliary floating block drives the second auxiliary floating rod to swing up and down at the cross-shaft universal joint on one hand, thereby driving the first auxiliary floating rod to swing up and down at the side hinged part of the floating ball, the swing is beneficial to continuously adjusting the horizontal inclination angle of the auxiliary assembly relative to the floating ball, thereby adapting to the fluctuation of the sea surface, being beneficial to enabling the device to float on the sea surface with higher verticality, improving the stability of the sampling process, on the other hand, the auxiliary floating block can drive the second auxiliary floating rod to swing horizontally at the cross-shaft universal joint, thereby consume the wave energy on the horizontal direction, reduce the side impact force that the floater received, further hoisting device's stability, supplementary kicker drives the second supplementary kicker lever and is close to forming the inclination to first supplementary kicker lever, each auxiliary assembly of side wave energy impact drive floater rotation, rotatory water ripple interference side rivers that produce, can effectively consume outside wave to the impact force of floater, reduce the outside interference that water pump and GPS locator received, increase device life, each auxiliary assembly crooked back is close to each other simultaneously, form the annular protection of floater side, can effectively block sea rubbish and be close to the device and influence the quality of water around the device, thereby influence the data accuracy of the water sample that gathers.

Preferably, a flexible connecting rod is connected between two adjacent auxiliary floating blocks. The flexible connecting rod consolidates the connection of adjacent supplementary kicking block on the one hand, avoid supplementary kicking block to receive the impact and lead to second supplementary kicking rod and first supplementary kicking rod rupture, on the other hand flexible connecting rod takes place elastic deformation after receiving the impact, can consume the water wave energy, and then hoisting device stability that floats, when the device needs to be retrieved, on-shore personnel can catch on flexible connecting rod and pull back the device to the bank, be convenient for retrieve, supplementary kicking block is when receiving the impact and is close to the floater, can make each auxiliary assembly gather together to floater center department through flexible connecting rod, thereby consume the water wave energy, flexible connecting rod can further block the approach of sea rubbish to center department middle part floater.

Preferably, the bottom outside of automatic sampler is fixed with the bearing, and the bearing outer lane is fixed with annular floating body, is equipped with a plurality of articulated components in the annular floating body, and articulated component is including the counter weight pole of interlude at annular floating body lateral wall, and the terminal articulated first articulated pole that is connected with of counter weight pole, arbitrary first articulated pole bottom are connected with the second articulated pole, and arbitrary first articulated pole side articulates and is connected with the third articulated pole, and the third articulated pole end is fixed with the balancing weight. The annular floating body provides device bottom part buoyancy, thereby rivers impact automatic sampler bottom side time, thereby rivers can flow along annular floating body surface buffering part impact force, counter weight pole and balancing weight are to device bottom counter weight, guarantee that the sampling bottle has higher vertical stability in water, be favorable to the sample, the balancing weight can change spatial position through the swing of third articulated pole in second articulated pole and first articulated pole junction when receiving the rivers impact, thereby adjusting device focus, with the lifting means stability, the articulated assembly wholly encircle and lay in annular floating body outside, thereby form effective protection to annular floating body, thereby avoid the device bottom to strike the reef in the float in-process and damage, and can consume impact energy through the swing of third articulated pole when the balancing weight strikes the reef, second articulated pole and first articulated pole, avoid third articulated pole, second articulated pole and first articulated pole to collide the fracture, the articulated assembly of device bottom is received the rivers disturbance time, drive annular floating body and rotate on the bearing, can consume the water flow disturbance through rotatory annular floating body constantly adjusts the position of each articulated assembly on the other hand, reduce the position of bottom and the annular floating body and the joint rod on the reef, on the one hand, on the other hand, the side of the annular floating body is favorable to reduce the annular device is produced by the annular device is broken to the annular device, on the side of the side, and the device is more accurate to reduce the side, the side has the device is lost to the side to the device is driven to the side to the device.

Preferably, the bottom end of the first hinging rod is inserted with a limiting column, the upper end face and the lower end face of the second hinging rod are provided with rectangular through grooves, the two sides of the second hinging rod are provided with sliding grooves, the end of the first hinging rod is positioned in the rectangular through grooves, the two ends of the limiting column penetrate through the sliding grooves on the two sides, a first spring is arranged between one side of the end of the first hinging rod and the second hinging rod, and a second spring is connected between the third hinging rod and the other side of the first hinging rod. The limiting column slides in the chute, the tail end of the first hinging rod can slide in the rectangular through groove, when the balancing weight impacts the reef, the balancing weight drives the third hinging rod to press the first hinging rod to enable the limiting column to compress the first spring in the chute, the impact force of the balancing weight is replaced through deformation of the first spring, the first spring is restored to deform to reversely push the first hinging rod, the third hinging rod drives the balancing weight to push out outwards, the device is favorable for reversely bouncing up and rapidly leaving after impacting the reef, the device is prevented from staying near the reef for a long time to affect sampling, the second spring limits the third hinging rod, the third limiting rod and the balancing weight are prevented from impacting the second hinging rod, the energy generated by impact of the balancing weight can be buffered by the second spring in the deformation process, the energy transferred to the first hinging rod and the second hinging rod is reduced, so that the vibration is prevented from being broken, and when the device is placed on the bank, the automatic sampler is erected by the hinging assembly, the bottom of the device is kept away from the ground by a certain height, and abrasion of the device is avoided.

The invention adopts the singlechip to control the automatic sampler to sample at fixed time, and the upper part and the lower part of the device are protected by the auxiliary component and the hinge component, thus having the following beneficial effects: the single chip microcomputer is internally provided with a timing program, and the automatic sampler is controlled to sequentially collect the seawater samples at fixed time intervals, so that the seawater sample comparison research is facilitated;

the auxiliary assembly can realize multidirectional self-adaptive posture adjustment while protecting the side of the device, which is beneficial to keeping the device vertically suspended and improving the stability of the device during sampling; the hinge assembly drives the annular floating body to rotate under the action of water flow, so that the water flow impact can be effectively consumed, and the device is kept stable; the balancing weight is used for balancing the bottom of the device, so that the device is beneficial to vertically floating; the first spring and the second spring are arranged to facilitate reverse ejection of the balancing weight after the balancing weight contacts the reef. The probability of the device to touch the reef and lock is reduced.

Therefore, the invention is the marine floating automatic sampler based on the sequence controller, which can automatically collect the marine water sample at fixed time and has higher floating stability and anti-collision effect.

Drawings

FIG. 1 is a schematic diagram of the overall apparatus;

FIG. 2 is a schematic view of a floating ball in half section;

FIG. 3 is a schematic diagram of an electric motor;

FIG. 4 is a schematic diagram of an auxiliary assembly;

FIG. 5 is a schematic view of a hinge assembly;

FIG. 6 is a schematic diagram of a control section connection;

fig. 7 is a schematic diagram of an acquisition control flow.

Reference numerals: a floating ball is 1; an automatic sampler 2; sampling bottle.20; 200 parts of a filter head; electromagnetic one-way valve.201; a first separator plate.21; a water pump.22; manifold.23; branch pipe 24; a second separator 25; a motor.26; rotating the valve.27; flow through port 28; GPS localizer 3; 4, a singlechip; auxiliary assembly.5; a first auxiliary float bar, 50; cross universal joint 51; a second auxiliary float rod 52; auxiliary floating block 53; flexible connecting rods.54; bearing 6; a ring float.7; a hinge assembly.8; weight bar 80; a first hinge lever.81; limit posts 810; a second hinge lever 82; rectangular through slots 820; slide groove 821; a first spring 822; a third articulation bar 83; a second spring 831; weight block 84.

Detailed Description

The technical scheme of the invention is further described in detail below with reference to the specific embodiments and the attached drawings:

it will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-2, a marine floating automatic sampler 2 based on a sequence controller includes: the floating ball 1, the inside is fixed with automatic sampler 2 that alternates downwards under the floating ball 1, automatic sampler 2 is bottom open-ended cylinder casing, automatic sampler 2 is gone up the ring and is laid a plurality of sampling bottles 20 that interconnect in the ring, the bottom of arbitrary sampling bottle 20 is connected with filter head 200, the mouth of pipe department of arbitrary filter head 200 installs electromagnetic check valve 201, automatic sampler 2 inner wall is fixed with first baffle 21, first baffle 21 is located sampling bottle 20 top, place water pump 22 on the first baffle 21, water pumping port of water pump 22 is connected with house steward 23, house steward 23 is crooked downwards and is passed first baffle 21 center department, the up end intercommunication of arbitrary sampling bottle 20 has being in charge of 24, a plurality of charge of 24 are gathered upwards and are connected with house steward 23 lower port.

The floater 1 adopts light floater material, can provide the whole buoyancy of device, floater 1 can make automatic sampler 2 float in upper water collection upper water, simultaneously floater 1 forms the protection to automatic collector surface of water part that floats, thereby avoid surface of water floater striking automatic collector to produce vibration to interfere the work of water pump 22, when outside water of different directions strikes floater 1, thereby rivers flow along the spherical curved surface of floater 1 alleviate impact force and rivers velocity of flow, on the one hand avoid the device to overturn and lead to unable sampling, on the other hand reduce the device by the rapid washout, lead to unable collection of appointed regional water sample, simultaneously also reduce the difficulty of device recovery, water pump 22 changes each sampling bottle 20 internal pressure through house steward 23 and being in charge of 24, outside water passes through electromagnetic check valve 201 in proper order under the pressure effect, filter head 200 finally gets into sampling bottle 20 and accomplishes the water sample automatic acquisition, electromagnetic check valve 201 effectively prevents that the water sample of having gathered from flowing downwards, avoid the sample loss to lead to the water sample testing result inaccurate, filter head 200 filters large-size granule in the water, avoid the granule to form in sampling bottle 20 to block up, also avoid granule to pile up in sampling bottle 20 weight.

Referring to fig. 3, a second partition plate 25 is fixed on the inner wall of the automatic sampler 2, each filter head 200 passes through the second partition plate 25 and forms a connection, a motor 26 is installed at the center above the second partition plate 25, the rotating shaft of the motor 26 passes through the second partition plate 25 downwards and is connected with a rotary valve 27 at the end, the upper end surface of the rotary valve 27 is at the same level with the opening surface of the end below the filter head 200 and is tightly attached, and a circulation port 28 is arranged on the rotary valve 27. The GPS localizer 3 and the single-chip microcomputer 4 are fixed on the top end of the automatic sampler 2, and the motor 26 and the water pump 22 are respectively provided with a control module which is in wireless connection with the single-chip microcomputer 4.

The motor 26 is located the center below the automatic sampler 2, the whole focus of the device is lowered, the floating stability of the device is effectively improved, the motor 26 can drive the rotary valve 27 to rotate through the rotating shaft after being started, and therefore the circulation port 28 on the rotary valve 27 sequentially passes through the lower parts of the electromagnetic one-way valves 201, water can flow in from the circulation port 28 and is sucked into the sampling bottle 20 through the electromagnetic one-way valves 201 above the circulation port 28 and the filter head 200 by pressure, the GPS positioner 3 is convenient for personnel to accurately find and recycle the device, and the device is prevented from floating to a far distance offshore along with water flow and being difficult to be found by personnel on the shore.

Referring to fig. 4, a plurality of auxiliary assemblies 5 are circumferentially arranged on the outer side of the floating ball 1 in the horizontal direction, each auxiliary assembly 5 comprises a first auxiliary floating rod 50 and a second auxiliary floating rod 52, one end of the first auxiliary floating rod 50 is hinged with the floating ball 1, the other end of the first auxiliary floating rod 50 is fixedly provided with a cross universal joint 51, the first auxiliary floating rod 50 and the second auxiliary floating rod 52 are connected through the cross universal joint 51, the cross universal joint 51 comprises two transmission shaft forks respectively fixed with the first auxiliary floating rod 50 and the second auxiliary floating rod 52 and cross shafts rotatably connected with the two shaft forks, and the tail end of the second auxiliary floating rod 52 is rotatably provided with an auxiliary floating block 53.

The auxiliary floating block 53 and the first auxiliary floating rod 50 and the second auxiliary floating rod 52 increase the integral buoyancy of the device, and the first auxiliary floating rod 50 and the second auxiliary floating rod 52 enable the auxiliary floating block 53 to encircle the periphery of the floating ball 1 with larger circumferential diameters, so that the stability of floating of the device is increased, when sea waves impact the floating ball 1, the auxiliary floating block 53 drives the second auxiliary floating rod 52 and the transmission shaft fork to swing up and down at the joint of the cross shafts on one hand, thereby driving the first auxiliary floating rod 50 to swing up and down at the side hinging position of the floating ball 1, the swing is conducive to continuously adjusting the horizontal inclination angle of the auxiliary assembly 5 relative to the floating ball 1, thereby adapting to the fluctuation of the sea surface, being beneficial to enabling the device to float on the sea surface with higher verticality, improving the stability of the sampling process, and on the other hand, the auxiliary floating block 53 can drive the second auxiliary floating rod 52 and the transmission shaft fork to swing horizontally at the joint of the cross shafts, so that the wave energy on the horizontal direction is consumed, the side impact force of the floating ball 1 is reduced, the stability of the device is further improved, when the side water body flows to 1, the auxiliary block 53 drives the second auxiliary floating rod 52 to drive the first auxiliary floating rod 52 to swing up and the side impact force of the water collector to the water quality 5 to the side of the water quality, the water quality sensor is close to the water quality sensor is formed, the side impact device is accurately influenced by the water quality sensor 1, and the water quality sensor is located outside the water sensor is formed, and the water quality sensor is located outside the water sensor is closely adjacent to the water sensor assembly is in the side of the water quality sensor, and the water sensor is greatly influenced by the water quality sensor is greatly, and the water quality sensor is greatly, and the water quality noise, and the water quality sensor device.

A flexible connecting rod 54 is connected between two adjacent auxiliary floating blocks 53. The connection of adjacent supplementary kicker 53 is consolidated to flexible connecting rod 54 on the one hand, avoid supplementary kicker 53 to break away from second supplementary kicker 52, on the other hand flexible connecting rod 54 can produce elastic deformation after receiving the impact, flexible connecting rod 54 can assist the consumption wave energy in the recovery deformation in-process, and then the device stability that floats, when the device needs to be retrieved, on-shore personnel can catch flexible connecting rod 54 and pull back the device to the bank limit, be convenient for retrieve, flexible connecting rod 54 and supplementary kicker 53 form the closed loop that encircles in the floater 1 outside, can further block the approach of sea rubbish to central part floater 1 in the middle part of center department, and avoid floater 1 to strike reef and bank limit.

Referring to fig. 2, a bearing 6 is fixed on the outer side of the bottom of the automatic sampler 2, and an annular floating body 7 is fixed on the outer ring of the bearing 6.

Referring to fig. 5, a plurality of hinge assemblies 8 are arranged in the annular floating body 7, the hinge assemblies 8 comprise weight rods 80 inserted into the side wall of the annular floating body 7, the tail ends of the weight rods 80 are hinged with first hinge rods 81, the bottom of any first hinge rod 81 is connected with a second hinge rod 82, the side of any first hinge rod 81 is hinged with a third hinge rod 83, and the tail ends of the third hinge rods 83 are fixed with balancing weights 84.

The annular floating body 7 provides device bottom buoyancy, thereby the bottom rivers impact automatic sampler 2 side, thereby rivers can flow along annular floating body 7 surface buffering part impact force, balancing weight 84 counter-weights device bottom, guarantee that sampling bottle 20 has higher vertical stability in the aquatic, be favorable to the sample, balancing weight 84 can change the spatial position through the swing of third articulated rod 83 in second articulated rod 82 and first articulated rod 81 junction when receiving the rivers impact, thereby adjusting the device focus, with the promotion device stability, thereby articulated assembly 8 wholly encircle and lay in annular floating body 7 outside, form effective protection to annular floating body 7, thereby avoid the device bottom to strike the reef in the showy in-process and damage, thereby the articulated assembly 8 of device bottom is received the rivers disturbance, drive annular floating body 7 and rotate on bearing 6, on the one hand can consume the rivers disturbance through rotatory, on the other hand pivoted annular floating body 7 can constantly adjust the position of each articulated assembly 8, reduce the balancing weight 84 of bottom and the probability of third articulated rod 83 card on the reef, the swirl rivers that annular floating body 7 drive articulated assembly 8 produced on the one hand can produce downward thrust, help the device to leave the reef, the device is reduced, the accurate and the device is close to the device around the reef can be improved to the accurate risk of being lost, on the other hand, the device is favorable to be driven to the accurate to the device of dispelling the water and the risk.

The bottom end of the first hinging rod 81 is inserted with a limiting column 810, the upper end surface and the lower end surface of the second hinging rod 82 are provided with rectangular through grooves 820, the two sides of the second hinging rod 82 are provided with sliding grooves 821, the end of the first hinging rod 81 is positioned in the rectangular through grooves 820, the two ends of the limiting column 810 penetrate through the sliding grooves 821 on the two sides, a first spring 822 is arranged between one side of the end of the first hinging rod 81 and the second hinging rod 82, and a second spring 831 is connected between the other side of the third hinging rod 83 and the other side of the first hinging rod 81.

The tail end of the first hinging rod 81 can slide in the rectangular through groove 820, meanwhile, the limiting column 810 is driven to slide in the sliding groove 821, when the balancing weight 84 impacts the reef, the balancing weight 84 drives the third hinging rod 83 to press the first hinging rod 81 downwards, the limiting column 810 compresses the first spring 822 in the sliding groove 821, the impact force of the balancing weight 84 is replaced through deformation of the first spring 822, the first spring 822 is restored to be deformed to push the first hinging rod 81 reversely after being pressed, the third hinging rod 83 drives the balancing weight 84 to give reverse thrust to the reef, the device can be conveniently and rapidly bounced and separated after impacting the reef, the device is prevented from staying near the reef for a long time to influence sampling, when the third hinging rod rotates greatly at the hinging position, the second spring 831 limits the third hinging rod 83, the third hinging rod 84 is prevented from impacting the second hinging rod 82, the second spring 831 can buffer energy generated by the impact of the balancing weight 84 in the deformation process, the energy transferred to the first hinging rod 81 and the second hinging rod 82 is reduced, and vibration breakage is avoided.

The working process comprises the following steps:

before the device is used, the singlechip 4 is initialized, the time interval of a timing program in the singlechip 4 and the interruption time length of the interruption program are set, the device is put into sea water, the floating ball 1 provides buoyancy to enable the device to float on the sea surface integrally, when the device floats and tends to be stable, the singlechip 4 gives pulse signals to the motor 26, the motor 26 drives the rotary valve 27 to rotate for a fixed time length and then starts the interruption program, at the moment, the circulation port 28 on the rotary valve 27 is opposite to the port of the filter head 200 below the electromagnetic one-way valve 201, at the moment, the singlechip 4 transmits the pulse signals to the water pump 22, so that the water pump 22 is started, external water is sucked into the sampling bottle 20 from the circulation port 28 upwards through the electromagnetic one-way valve and the filter head 200 to finish one-time collection, after the interruption time length arrives, the singlechip 4 transmits the pulse signals to control the water pump 22 to be closed, the singlechip 4 transmits new pulse signals to control the motor 26 to rotate after a certain interval time length of the device floats, next sampling is performed, and so on the basis of sequential control of the singlechip 4 to finish automatic sampling of sea water of all sampling bottles 20.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An automatic marine floating sampler based on a sequence controller, comprising: the automatic sampler (2) is arranged below the floating ball (1), a plurality of auxiliary components (5) are circumferentially distributed on the outer side of the floating ball (1) in the horizontal direction,

the method is characterized in that: the automatic sampler (2) is a cylindrical shell with an opening at the bottom, a plurality of sampling bottles (20) which are connected with each other are circumferentially distributed in the automatic sampler (2), the bottom of any sampling bottle (20) is connected with a filter head (200) and an electromagnetic one-way valve (201), a first partition plate (21) is fixed above the sampling bottle (20) on the inner wall of the automatic sampler (2), a water pump (22) is placed on the first partition plate (21), the water pump (22) is connected with a main pipe (23), a branch pipe (24) is communicated with the upper end face of any sampling bottle (20), and the branch pipe (24) is converged upwards and is communicated with the main pipe (23);

the automatic sampler is characterized in that a bearing (6) is fixed on the outer side of the bottom of the automatic sampler (2), an annular floating body (7) is fixed on the outer ring of the bearing (6), a plurality of hinge assemblies (8) are arranged in the annular floating body (7), each hinge assembly (8) comprises a counterweight rod (80) inserted into the side wall of the annular floating body (7), the tail end of each counterweight rod (80) is hinged with a first hinge rod (81), the bottom of any first hinge rod (81) is connected with a second hinge rod (82), a third hinge rod (83) is hinged on the side of any first hinge rod (81), and a balancing weight (84) is fixed at the tail end of each third hinge rod (83);

limiting columns (810) are inserted into the bottom ends of the first hinging rods (81), rectangular through grooves (820) are formed in the upper end face and the lower end face of the second hinging rods (82), sliding grooves (821) are formed in the two sides of the second hinging rods (82), the tail ends of the first hinging rods (81) are located in the rectangular through grooves (820), the two ends of the limiting columns (810) penetrate through the sliding grooves (821) in the two sides, a first spring (822) is arranged between one side of the tail ends of the first hinging rods (81) and the second hinging rods (82), and a second spring (831) is connected between the other sides of the first hinging rods (81).

2. The sequence controller-based marine floating automatic sampler of claim 1 and characterized by: the inside below of automatic sampler (2) is equipped with second baffle (25), each filter head (200) are passed second baffle (25) and form the connection, motor (26) are installed in top center department of second baffle (25), the pivot of motor (26) passes second baffle (25) and terminal being located the below of electromagnetism check valve (201), the pivot of motor (26) is at end-to-end connection have rotary valve (27), be equipped with circulation mouth (28) on rotary valve (27).

3. The sequence controller-based marine floating automatic sampler of claim 2 and characterized by: the automatic sampler is characterized in that a GPS (global positioning system) locator (3) and a singlechip (4) are fixed at the inner top end of the automatic sampler (2), and a control module in wireless connection with the singlechip (4) is arranged on the motor (26) and the water pump (22).

4. The sequence controller-based marine floating automatic sampler of claim 1 and characterized by: the auxiliary assembly (5) comprises a first auxiliary floating rod (50) and a second auxiliary floating rod (52), one end of the first auxiliary floating rod (50) is hinged to the floating ball (1), a cross shaft universal joint (51) is fixed to the other end of the first auxiliary floating rod (50), the first auxiliary floating rod (50) and the second auxiliary floating rod (52) are connected through the cross shaft universal joint (51), and an auxiliary floating block (53) is rotatably arranged at the tail end of the second auxiliary floating rod (52).

5. The sequence controller-based marine floating automatic sampler of claim 4 and characterized by: a flexible connecting rod (54) is connected between two adjacent auxiliary floating blocks (53).