CN209055343U - A kind of high dam depth library column core of sediments acquisition device based on acoustic vibration - Google Patents

Abstract

The utility model discloses a kind of high dam depth library column core of sediments acquisition device based on acoustic vibration, including acoustic vibration sediment collecting device main body, adopts mud mould block, triggering sampling module；The acoustic vibration sediment collecting device main body, which is located at, adopts mud inside modules, and acquisition device main body is respectively from top to bottom vibrating motor, adopts mud mould block central flat, horizontal bearing block, check-valves, sampling cylinder；It is described adopt mud mould block include at the top of the vibrating motor adopt mud mould block upper junction plate and what sampling cylinder passed through adopts mud mould block lower connecting plate；The triggering sampling module is whole to be in the same horizontal position with vibrating motor, and triggering sampling module is formed by waterproof steering engine and with the driving lever of waterproof steering engine output axis connection.The utility model, towards high dam depth library complex conditions water body, it is low to have the advantages that good sample fidelity effect, sampling success rate height, strong applicability and portable simple, expense are put into based on the high dam depth library column core of sediments acquisition device of acoustic vibration.

Description

A kind of high dam depth library column core of sediments acquisition device based on acoustic vibration

Technical field

The utility model belongs to the acquisition technique field of high dam depth library complex condition deposit, is a kind of complex condition Deposit complete column core sampling apparatus, more particularly to deep big reservoir sediments acoustic vibration intellegent sampling device.

Background technique

In recent years, complete to benthal deposit as earth key band and wetlands ecosystems correlative study deepen continuously The undisturbed of column core, the demand of efficient in-situ sampling investigation are growing.Therefore, a kind of highly effective and safe of utility model, portable resistance to The pass for restricting the research of water ecosystem deposit is had become with, the sediment sampling device that sampling quality is high, sampling is at low cost Key technology problem, in-situ acquisition and monitoring especially for high dam depth library water body deposit.Traditional sediment sampling method There are clamshell grab bucket bottom sampler, box deposit sampler, gravity columnar sampler, forced and injection formula sampler, vibration to take Sample device etc..The research of acoustic vibration drilling technology starts from the 1940s, being mainly used in oil drilling service, high speed is driven piles With the continuous sampling of mineral exploration etc.；After the eighties, which is gradually applied to the acquisition of environmental sample, and by not Disconnected improve reaches its maturity with various application tests, sonic drilling technology, and well-known sonic drilling device fabrication company is successive Occur, such as the Versa-Drill international corporation in the U.S., Acker Drill company, Gus Pech manufacturing company, Canadian Sonic Drill company, Li Gen company of Japan etc..Meanwhile acoustic vibration technology is also worldwide used widely, Use scope also from the drilling fields such as geological prospecting, hydrological well drilling, Landslide and improvement, the construction of earthquake blast hole gradually Expand to the fields such as river, river, lake, extra large deposit investigation, pollution sampling analysis and the sampling of palaeoenvironment geologic climate Geographical Study, pole The earth promotes substance geochemical cycle, contamination control and improvement in terms of deposit and the development of palaeosedimentology section.

Currently, larger for the in-situ acquisition difficulty of deep big reservoir sediments complete column core, traditional bed mud method of sampling is deposited Following insufficient: 1) conventional method is influenced vulnerable to stormy waves water flow, water level elevation, sediment types etc., and sample removal process is held in addition Easily there is obscission, causes sampling efficiency low；2) conventional method is difficult to observe underwater topography and substrate situation in real time, by weight Power sampling will be bound to cause deposit surface layer and be disturbed, and then destroy the original bedding architecture of deposit；3) existing sound wave Vibration sediment collecting device maximum can only acquire the depth of water and be the bed mud column core sample of 60m, and need to build drilling platform, this The correlative study being pushed further into deep big reservoir (up to 300m) and Coastal and Estuarine Waters deposit will seriously be limited；4) tradition side Method intelligent level is insufficient, and sampling process needs more people to cooperate simultaneously, operation sequence is complicated, sampling risk is high, and sample is caused to adopt Collect cost and science research input increases.

Utility model content

Purpose of utility model: in view of the problems of the existing technology, the utility model provides a kind of based on acoustic vibration High dam depth library column core of sediments acquisition device, the acoustic vibration sediment collecting device is towards high dam depth library complex conditions water body (depth of water is different, substrate is various, hydrodynamic force is changeable etc.), for the deficiency of traditional sampling method, the utility model is that one kind has Sample fidelity effect is good, sampling success rate is high, strong applicability and portable simple, expense put into it is low in one based on sound wave The high dam depth library deposited intact object column core intelligent acquisition device of vibration.

Technical solution: to achieve the goals above, a kind of high dam based on acoustic vibration such as described in the utility model is deep Library column core of sediments acquisition device, including acoustic vibration sediment collecting device main body, adopt mud mould block, triggering sampling module；Institute It is from top to bottom respectively to vibrate electricity that acoustic vibration sediment collecting device main body, which is stated, positioned at mud inside modules, acquisition device main body is adopted Machine adopts mud mould block central flat, horizontal bearing block, check-valves, sampling cylinder；The mud mould block of adopting includes being located at the top of vibrating motor Adopt mud mould block upper junction plate and what sampling cylinder passed through adopts mud mould block lower connecting plate；The triggering sampling module is whole and vibrates Motor is in the same horizontal position, driving lever group of the triggering sampling module by waterproof steering engine and with waterproof steering engine output axis connection At.

Wherein, vibrating motor sealed compartment is provided with outside the vibrating motor.The energy source of vibrating motor is 48 volts Lithium battery, it is contemplated that waterproof pressure problem, vibrating motor sealed compartment, disengaging line interface do special water-stop processing, sealing The pressure-resistant performance of cabin and watertight connector may be implemented device and carry out operation within the scope of the 350m depth of water.

Wherein, the horizontal bearing block has stainless steel bearing, and slight convolution effect can be achieved in sampling process；It is horizontal Bearing block is connect with the upper end of connector I, and the lower end of connector I is connect with check-valves.Entire acoustic vibration deposit acquisition dress The low speed gyroscopic action set is realized by horizontal bearing block.In sampling process, bearing carries out slight convolution fortune around equalization point Dynamic, the sampling main part being connected with bearing can easily acquire the deposit with silt under the action of this rotating force.

Wherein, connector II is provided among the check-valves and sampling cylinder.

Preferably, the connector I and connector II are hollow structures, and I side of connector is equipped with several holes For being vented and being discharged.

Further, connector I is mainly internal screwed stainless joint, and major function is for connection to band There is the organic glass sampling cylinder of same specification, it is ensured that be able to maintain vacuum state in sampling cylinder, avoid due to water column in sampling cylinder And mud column gravity and there is slip phenomenon.

The horizontal bearing block that connector II is primarily used to connection check-valves and is connected with vibrating motor, to realize vibration Motor driven sampling cylinder is bored by certain frequency to bed mud.

Wherein, it is described adopt mud mould block upper junction plate and adopt be provided with the branch for being cased with linear bearing between mud mould block lower connecting plate Guiding rack of the axis as bottom sampler is supportted, for guaranteeing that sampling cylinder can be perpendicularly inserted in deposit.

Further, the baffle for preventing sampling section from falling is additionally provided on the triggering sampling module.Baffle is mainly In the baffle that original state prevents entire acoustic vibration bottom sampler from falling.Baffle is connected on mud mould block by baffle installation axle with adopting It plate and adopts mud mould block lower connecting plate and fixes.

Waterproof steering engine is selected in triggering sampling module to realize the triggering of acquisition device, waterproof steering engine is by ring flange and adopts Mud mould block upper junction plate is fixedly connected, and is mainly positioned and is adjusted the speed by pulse width modulating technology.Arteries and veins is sent first Number or frequency are rushed to the control circuit being mounted in vibrating motor sealed compartment, is carried out by control circuit driving direct current generator corresponding Movement, and ensure that steering engine accurately discharges acquisition device by the amount angular displacement of control steering engine output shaft, velocity and acceleration Triggering organ.

Preferably, the check-valves include spool, the pressure spring covered on spool, the mobilizable aluminum baffle of self-control and The sealing ring that aluminum baffle is fully sealed is realized when closure of check ring.Check valve design realizes exhaust and negative pressure sealing effect, Including spool, according to the pressure spring covered on spool, (the elastic force selection of pressure spring is the work according to aluminum baffle in water sports Firmly, self gravity and sampling cylinder negative-pressure sucking COMPREHENSIVE CALCULATING and obtain, final goal is to realize to sample in downward sampling process The smooth draining of cylinder, exhaust, and while terminating to sample and recycle sample, realizes when valve is closed that i.e. it is completely close to pass through sealing ring for baffle It closes.This outer baffle weight is particularly significant, cannot overweight otherwise water body backwater effect be difficult open baffle, thus draining and exhaust not It is smooth, it is easy that sampling cylinder is made to have air, and then generate liquid level difference；Baffle kick the beam water body downward resistance it is not big enough, baffle may Can bad sealing it is real), according to top in the storages power and water body of pressure spring act on to the buoyancy size of baffle and the aluminum baffle of determination, with And the components such as the sealing ring that baffle is fully sealed are realized when closure of check ring, so that top is to gear on water body downwards in sampling process The upward active force and spring of plate push up active force lower baffle plate quilt to the reaction force joint effect of baffle, flapper on water body Opening is that valve is opened, and is quickly and effectively drained by the connector II to connect with check-valves, and then reduce due to draining It is unsmooth and cause to form negative pressure in sampling cylinder and liquid level occur poor, it avoids causing in acquisition device removal process since the depth of water reduces Pressure reduction and cause the Sediment core in sampling cylinder to fall off.It is pushed up under water body to baffle when terminating to sample and recycle sample Downward resistance and spring energy storage be superimposed jointly, it is ensured that baffle is constantly in the state of being completely closed i.e. valve in device removal process Door close, due to sampling cylinder draining it is smooth and make barrel mast overlying water filling completely and form complete negative pressure state, thus Ensure phenomena such as collected sediment sample will not be greater than negative pressure in sampling cylinder due to gravity and be left out in sampling cylinder.

Preferably, the vibration frequency that generates of the vibration head of the vibrating motor is 50~185Hz, revolving speed 100~ 200rpm.The main component devices of vibrating motor are vibration heads, it can utilize high-frequency vibration and low speed gyroscopic action, along with downward Pressure, promote drill string constantly into deposit.The vibration frequency that vibration head generates is usually 50~185Hz, and revolving speed 100~ 200rpm.When vibration is overlapped with the natural resonance frequency of drill string, all right generations is resonated, at this time drill string act like flywheel or Spring is the same, and great energy is directly passed to drill bit.Therefore, acoustic vibration can be in the unconventional hydrodynamic(al) such as deep water or torrent In power and sediment types complex environment, by turn governor, the size of adjustable vibrating motor vibration frequency.Selection is appropriate Exciting force and frequency, efficiently obtain that interference-free, sample is pollution-free, acquires continuous whole original position without deformation, sample Column core of sediments sample.

Further, the acoustic vibration sediment collecting device main body carries underwater high-definition camera system and device balance System, and entire acquisition device is equipped with intelligence control system waterborne.

The underwater high-definition camera of acquisition device, which is mounted on, adopts mud mould block lower connecting plate, and with water-proof sealing protect cabin to prevent It only intakes or by other physical damages.The balance system of acquisition device is balance assistant, the propeller by acquisition device two sides, Promote acquisition device to be subjected to displacement on direction all around, and finally further confirms that sampling apparatus is by balanced gyroscope It is no to be in equilibrium state.

Whole device connects intelligence control system waterborne and sediment collecting device using umbilical cables, and then passes through raspberry 3B+ is sent to control the transfer treatment process of the transmission of the real-time monitoring of underwater video and manipulation Arduino Mega2560 software.It is whole A acquisition device, in water-bed operation, is replaced 50cm~200cm difference sampling cylinder, can obtained not by high frequency sound wave vibrodrill With the benthal deposit sample of depth, underwater operation depth may be up to 350m, farthest meet different subjects to deposition The different demands of object research.

Working principle: before carrying out sample acquisition, by underwater high-definition camera and sampling apparatus balance system, remote-controlled water Upper operating panel comes preliminary analysis underwater topography and sediment types, selects optimal sample.When acoustic vibration deposit After sampling apparatus steadily contacts bed mud, control signal is sent by intelligence control system waterborne and gives waterproof steering engine, waterproof steering engine is defeated Driving lever on shaft executes spinning movement, pushes baffle aside, acoustic vibration sediment collecting device falls downward under the effect of gravity. When sampling cylinder does not continue to move down, control signal is sent to control circuit, to open by control intelligence system waterborne Dynamic vibrating motor adjusts acoustic vibration sediment collecting device and is maintained at low frequency gear, it is ensured that the acquisition of acoustic vibration deposit Device is started to work with lower vibration frequency.With the increase of sampling depth, sediment collecting device does not reach reservation also and adopts Sample depth, and when no longer moving down into deposit, further adjusts acoustic vibration sediment collecting device to higher gear, The vibration frequency of vibrating motor is improved, sampling cylinder is pushed to continue to drill down in deposit.If acoustic vibration deposit is adopted Under higher gear service condition, the downward displacement of vector does not occur acquisition means in 5s for sampling cylinder, shows to encounter hard bed mud, Control circuit can be automatically stopped vibration and be damaged to prevent acoustic vibration sediment collecting device.Under the driving of high vibration rate, when When sampling cylinder reaches maximum sampling limit in sediment collecting device, control intelligence system transmission waterborne terminates order and gives control electricity The underwater collecting work of column core of sediments is completed thus vibrating motor of closing the door in road, and in downward sampling process, flapper is in water On body push up active force lower baffle plate be opened i.e. valve opening, quickly and effectively arranged by the connector II to connect with check-valves Water, and then reduce due to draining, being vented unsmooth and cause formation negative pressure in sampling cylinder and liquid level difference occur, avoid acquisition device from returning The Sediment core in sampling cylinder is caused to fall off since the depth of water reduces initiation pressure reduction during receipts.Terminate sampling simultaneously Baffle is completely closed i.e. valve closing by sealing ring when recycling sample, makes barrel mast overlying water since sampling cylinder draining is smooth Body filling is complete and forms complete negative pressure state, so that it is guaranteed that collected sediment sample will not be made because of gravity in sampling cylinder Phenomena such as with being left out greater than negative-pressure sucking in sampling cylinder.After column core of sediments acquires, by acoustic vibration deposit Acquisition device is gradually recycled to operating platform waterborne, obtains complete column core of sediments sample in situ, to complete entire sampling Process.

The utility model has the advantages that compared with prior art, the utility model has the advantages that

1) sample fidelity effect is good: the device of the utility model is vibrated using the high frequency sound wave that vibrating motor generates, sampling Undisturbed, nothing compressively make deposit keep prototype structure and thickness in the process；High frequency sound wave vibro-drilling can in coating and It realizes that sample acquisition is continuous whole in soft base rock, effectively keeps the home state of column core of sediments sample.

2) device strong applicability: the device of the utility model is observed under water in real time by carrying underwater high-definition camera Shape, high-precision pressure sensor on-line analysis device enter the depth of water body, and device balance system effectively maintains device in complexity Held stationary is mobile under hydrodynamic condition.Multifrequency acoustic vibration makes cylinder according to sediment types collected, surrounds equalization point Carry out speed change circumnutation, can easily in-situ acquisition to different sediment types column core of sediments sample；It is vibrated by adjusting The vibration frequency of motor effectively avoids causing sampling apparatus to be damaged because sampling cylinder encounters hard deposit.Secondly, design Vibrating motor sealed compartment bears hydraulic pressure up to the 350m depth of water, and sample acquisition can be carried out under the conditions of different water depth by realizing, these Advantage greatly improves the sampling apparatus success rate that sediment sample acquires in complex conditions water body.

3) sample acquisition success rate is high: being equipped with exhaust outlet and sealing device at the top of sampling cylinder, helps to collect viscous powder Matter deposit；It is realized and is sealed using negative pressure, prevent relatively soft sediment sample from falling off, in addition, in the device of the utility model Distinctive check valve design realizes exhaust and negative pressure sealing effect, so that valve is opened downwards in sampling process, by only The hollow aperture for returning valve connector II is effectively drained；Valve is closed when terminating to sample and recycle sample, is filled in barrel mast Complete water column and form negative pressure state, effectively avoid collected deposit in sampling cylinder from not being greater than sampling due to gravity Phenomena such as negative-pressure sucking of cylinder is left out；Sample success rate may be up to 98%.

4) portable simple, it is low-cost: the apparatus moduleization assembling of the utility model, simple structure, can one easily grasp Make；Vibrating motor power resources use 48 volts of safe voltages below, and sampling process operator is not necessarily to contact vibration head, nothing By under deep water or shallow-water environment operation there is no any security risk.

On the whole, the one kind that has developed of the utility model has the observation of underwater topography high definition, undisturbed acquisition deposit Column core, sample fidelity effect are good, sampling success rate is high, strong applicability and portable simple, expense put into the low height in one Dam depth library deposited intact object column core intelligent acquisition device.It is compared with the traditional method, advantage includes 1) really undisturbed sampling, sample Product are pollution-free；2) column core of sediments sample acquisition success rate is high, and sample quality fully meets engineering and scientific research purposes；3) sound wave shakes Dynamic drill bit can be sampled with dive as deep as the depths 350m under the premise of carrying out water-stop, and sampling efficiency is traditional approach 20 times or more；4) acoustic vibration drill bit strong antijamming capability, operator can be remotely controlled deposit by portion's operation panel waterborne and adopt Acquisition means complete sample acquisition under the conditions of deep water, torrent or complicated substrate；5) portable safety, easy to operate is realized.This is practical The novel important technical difficult point for effectively overcoming the acquisition of high dam depth library sample significantly improves conventional method sampling success rate Low, deposit destructible deviates the deficiencies of sample original position truth, Data Matching are poor and deposit spatio-temporal variability is big and lacks Point has aimed at national watershed water power instantly and the Strategic Demand of near-coastal resources development and utilization, further power-assisted country " ecology text It is bright " construction development.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model acoustic vibration column core of sediments acquisition device；

Fig. 2 is the structural schematic diagram of check-valves.

Specific embodiment

Below in conjunction with drawings and examples, the utility model is described in further detail.

Embodiment

As shown in Figs. 1-2, a kind of high dam depth library column core of sediments acquisition device based on acoustic vibration, including acoustic vibration Sediment collecting device main body adopts mud mould block, triggering sampling module；Acoustic vibration sediment collecting device main body, which is located at, adopts mud mould Inside block, acquisition device main body is respectively from top to bottom vibrating motor 1, adopts mud mould block central flat 2, horizontal bearing block 3, non-return Valve 4, sampling cylinder 5, vibrating motor 1 are provided with vibrating motor sealed compartment 10, the vibration frequency that the vibration head of vibrating motor 1 generates outside For 50~185Hz, 100~200rpm of revolving speed, vibrating motor sealed compartment 10 and vibrating motor 1 are mounted on to adopt and put down among mud mould block 2 upper surface of plate, horizontal bearing block 3 are mounted on its lower surface, and horizontal bearing block 3 has stainless steel bearing, can in sampling process Realize slight convolution effect；Horizontal bearing block 3 is connect with the upper end of connector I 11, and the lower end of connector I 11 and check-valves 4 are logical Pipe screw thread connection is crossed, is provided with connector II12 among check-valves 4 and sampling cylinder 5, connector II12 upper/lower terminal all passes through Pipe screw thread is attached with check-valves 11, sampling cylinder 5 respectively, and connector I 11 and connector II12 are hollow structures, and is connected I 11 side of part is equipped with several apertures for being vented and being discharged；Check-valves 4 include spool 4-1, the pressure spring 4-2 covered on spool, The sealing ring 4-4 that activity aluminum baffle 4-3 and realization baffle are completely closed.

Adopt mud mould block include positioned at the top of vibrating motor 1 adopt mud mould block upper junction plate 6 and what sampling cylinder 5 passed through adopts mud Module lower connecting plate 7, adopts mud mould block upper junction plate 6 and adopts and be provided with three between mud mould block lower connecting plate 7 and be cased with linear bearing Guiding rack of 13 support shaft 14 as bottom sampler, for guaranteeing that sampling cylinder 5 can be perpendicularly inserted in deposit.

Triggering sampling module is whole to be in the same horizontal position with vibrating motor 1, is normally at behind vibrating motor 1, Triggering sampling module is made of waterproof steering engine 8 and the driving lever 9 for exporting axis connection with waterproof steering engine 8, is triggered on sampling module also It is provided with the baffle 15 for preventing acoustic vibration sediment collecting device from falling, baffle 15 is by baffle installation axle 16 and adopts mud mould block It upper junction plate 6 and adopts 7 connecting plates under mud mould block and fixes, waterproof steering engine 8 is by ring flange 17 and to adopt mud mould block upper junction plate 6 fixed Connection.It selects waterproof steering engine 8 to realize the triggering of acquisition device in triggering sampling module, skill is mainly modulated by pulse width Art is positioned and is adjusted the speed.Pulse number or frequency are sent first to the control in the sealed compartment 10 for being mounted on vibrating motor 1 Circuit carries out corresponding actions by control circuit driving direct current generator, and passes through the amount angular displacement of control steering engine output shaft, speed Ensure that steering engine accurately discharges the triggering organ of acquisition device with acceleration.

Acoustic vibration sediment collecting device main body carries underwater high-definition camera system, and such as underwater high-definition camera is (underwater Image resolution ratio is not less than 1920 × 1080 pixels) and device balance system, and entire acquisition device is equipped with intelligence waterborne Control system, including portion's control panel waterborne.Whole device connects intelligence control system waterborne and deposit using umbilical cables Acquisition device, and then control by raspberry pie 3B+ real-time monitoring transmission and the manipulation Arduino Mega2560 of underwater video The transfer treatment process of software.Entire acquisition device, in water-bed operation, replaces 50cm~200cm by high frequency sound wave vibrodrill Different sampling cylinders can obtain the benthal deposit sample of different depth, and underwater operation depth may be up to 350m, farthest Meet the different demands that different subjects study deposit.

Before carrying out sample acquisition, by underwater high-definition camera and sampling apparatus balance system, remote-controlled water upper operating Panel comes preliminary analysis underwater topography and sediment types, to select optimal sample to provide the evidence of real-time high-definition.Acquisition The underwater high-definition camera of device, which is mounted on, adopts mud mould block lower connecting plate 7, and with water-proof sealing protect cabin with prevent into water or by Other physical damages.The balance system of acquisition device is balance assistant, the propeller by acquisition device two sides, and acquisition is promoted to fill It sets and is subjected to displacement on direction all around, and finally further confirm that whether sampling apparatus is in balance by balanced gyroscope State.

After acoustic vibration sediment sampling device steadily contacts bed mud, control signal is sent by portion's control panel waterborne To waterproof steering engine 8, the driving lever 9 on 8 output shaft of waterproof steering engine executes spinning movement, pushes baffle 15 aside, acoustic vibration deposit is adopted Falls downward under acquisition means gravity.When sampling cylinder 5 does not continue to move down, sent by control intelligence system waterborne Control signal starts vibrating motor 1 to the control circuit in sealed compartment 10, adjusts acoustic vibration sediment collecting device and protects It holds in low frequency gear, it is ensured that acoustic vibration sediment collecting device is started to work with lower vibration frequency.As sampling is deep The increase of degree, sediment collecting device does not reach reservation sampling depth also, and no longer moves down into deposit, adjusts sound wave Sediment collecting device is vibrated to higher gear, improves the vibration frequency of vibrating motor 1, sampling cylinder 5 is pushed to continue to drill down to Sediment sample.If acoustic vibration sediment collecting device, under higher gear service condition, sampling cylinder 5 does not occur in 5s The downward displacement of vector, shows to encounter hard substrate, and control circuit can be automatically stopped vibration to prevent the acquisition of acoustic vibration deposit Device is damaged.Under the driving of high vibration rate, when sampling cylinder 5 reaches maximum sampling limit in sediment collecting device, water Upper control intelligence system, which is sent, terminates order to control circuit, so that vibrating motor 1 of closing the door, completes adopting under water for column core of sediments Collect work.In downward sampling process, it is that valve is opened that flapper 4-3, which pushes up active force lower baffle plate 4-3 on water body and opens, is passed through The connector II12 to connect with check-valves is quickly and effectively drained, is vented, and then is reduced and caused to adopt due to impeded drainage Negative pressure is formed in sample cylinder 5 and liquid level difference occurs, avoid in acquisition device removal process due to the depth of water reduce initiation pressure reduce and The Sediment core in sampling cylinder 5 is caused to fall off.Downward resistance of the top to baffle under water body when terminating to sample and recycle sample Under power and the common superposition of spring energy storage, it is ensured that baffle 4-3 is completely closed i.e. valve closing, activity aluminum baffle 4-3 and close Seal 4-4 realize baffle be completely closed, due to sampling cylinder 5 drain it is smooth and make barrel mast overlying water filling completely and formed Whole negative pressure state, so that it is guaranteed that collected sediment sample will not be born greater than in sampling cylinder 5 due to gravity in sampling cylinder Phenomena such as pressing suction and being left out.After sediment sample acquires, acoustic vibration sediment collecting device is gradually recycled To operating platform waterborne, complete column core of sediments sample in situ is obtained, entire sampling process is so far completed.

Claims (10)

1. a kind of high dam depth library column core of sediments acquisition device based on acoustic vibration, which is characterized in that heavy including acoustic vibration Product matter collection device main body adopts mud mould block, triggering sampling module；The acoustic vibration sediment collecting device main body, which is located at, adopts mud Inside modules, acoustic vibration sediment collecting device main body are respectively from top to bottom vibrating motor (1), adopt mud mould block central flat (2), horizontal bearing block (3), check-valves (4), sampling cylinder (5)；The mud mould block of adopting includes adopting at the top of vibrating motor (1) What mud mould block upper junction plate (6) and sampling cylinder (5) passed through adopts mud mould block lower connecting plate (7)；The triggering sampling module is whole It is in the same horizontal position with vibrating motor (1), triggering sampling module is exported by waterproof steering engine (8) and with waterproof steering engine (8) The driving lever (9) of axis connection forms.

2. the high dam depth library column core of sediments acquisition device according to claim 1 based on acoustic vibration, which is characterized in that Vibrating motor sealed compartment (10) are provided with outside the vibrating motor (1).

3. the high dam depth library column core of sediments acquisition device according to claim 1 based on acoustic vibration, which is characterized in that The horizontal bearing block (3) has bearing；Horizontal bearing block (3) connect with the upper end of connector I (11), connector I (11) Lower end is connect with check-valves (4).

4. the high dam depth library column core of sediments acquisition device according to claim 1 based on acoustic vibration, which is characterized in that Connector II (12) are provided among the check-valves (4) and sampling cylinder (5).

5. the high dam depth library column core of sediments acquisition device according to claim 4 based on acoustic vibration, which is characterized in that The connector I (11) and connector II (12) are all hollow structures, and connector I (11) side is equipped with several holes for arranging Gas and water outlet.

6. the high dam depth library column core of sediments acquisition device according to claim 1 based on acoustic vibration, which is characterized in that It is described adopt mud mould block upper junction plate (6) and adopt be provided with the support for being cased with linear bearing (13) between mud mould block lower connecting plate (7) Axis (14) is oriented to rack as acquisition device.

7. the high dam depth library column core of sediments acquisition device according to claim 1 based on acoustic vibration, which is characterized in that The baffle (15) for preventing sampling section from falling is additionally provided on the triggering sampling module.

8. the high dam depth library column core of sediments acquisition device according to claim 1 based on acoustic vibration, which is characterized in that The valve inner of the check-valves (4) includes spool (4-1), the pressure spring (4-2) covered on spool, mobilizable baffle (4-3) And the sealing ring (4-4) that baffle is fully sealed is realized when closure of check ring.

9. the high dam depth library column core of sediments acquisition device according to claim 1 based on acoustic vibration, which is characterized in that The vibration frequency that the vibration head of the vibrating motor (1) generates is 50~185Hz, 100~200rpm of revolving speed.

10. the high dam depth library column core of sediments acquisition device according to claim 1 based on acoustic vibration, feature exist In the acoustic vibration sediment collecting device main body carries underwater high-definition camera system and device balance system, and entire Acquisition device is equipped with intelligence control system waterborne.