CN107063743A - A kind of column shaped deposit gravity corer of deep-sea untethered sampling operation and its application - Google Patents
A kind of column shaped deposit gravity corer of deep-sea untethered sampling operation and its application Download PDFInfo
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- CN107063743A CN107063743A CN201710255390.0A CN201710255390A CN107063743A CN 107063743 A CN107063743 A CN 107063743A CN 201710255390 A CN201710255390 A CN 201710255390A CN 107063743 A CN107063743 A CN 107063743A
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- sampler
- outer tube
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- unblock
- sleeve pipe
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1006—Dispersed solids
- G01N2001/1012—Suspensions
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- Sampling And Sample Adjustment (AREA)
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Abstract
The present invention provides a kind of untethered gravity corer, including recovery unit and discarding unit；Recovery unit includes hook and the sampler inner tube being connected with floating body；At the top of hook connection floating body bottom and sampler inner tube；Discarding unit includes sampler outer tube, balancing weight and triggering unlocking mechanism；Triggering unlocking mechanism is socketed on the sampler outer tube outer wall below balancing weight；Sampler inner tube is placed in sampler outer tube and can slid axially in sampler outer tube, sampler outer tube wall stage casing is circumferentially uniformly arranged at least two lock-bit through hole, sampler Inner pipe outer walls set in lock-bit groove or expanding lock-bit hole, lock-bit through hole and lock-bit groove and are provided with locking ball；Unlock and bead returning groove is provided with the middle part of internal surface of sleeve pipe；Bead returning groove unlocks the distance between sleeve upper end and balancing weight lower edge more than the distance between bead returning groove and locking ball below locking ball.The untethered gravity corer of the present invention has higher reliability, security and lower cost.
Description
Technical field
The present invention relates to a kind of marine exploration equipment, and in particular to a kind of submarine sedimentary strata sampler, more particularly to a kind of
The submarine sedimentary strata sampler of untethered.
Background technology
The deep-sea earth is current international great front line science field with life science, and its development is closely fixed against deep-sea skill
The breakthrough innovation of art means.It in the research process of deep-sea is most also generally one of most important means to obtain bottom sediment to be,
It is significant to the geology in research deposit, geologic climate and microbial information.Whole bottom sediment research history is made a general survey of,
It is seen that, up to the present, the bottom sediment in sea bucket abyss etc. ultra-deep (depth of water is more than 7000 meters) marine site is studied very
It is weak.The depth that there are 25 trenches in the whole world is more than 7000 meters, wherein just having 18, including Mariana Pacific
Trench.Deep diving detection few in number, finds under the bucket abyss of sea, does not only have abundant geologic sedimentation phenomenon, such as various big
Magenta layer deposition, snake boss deposition, submarine hydrothermal solution mineral deposition etc., also breeding has various extreme form of life, including with sea
Bottom hydrothermal solution, the biota of cold spring phase association and microorganism species (Fryer, 1995,2012 adjoint with serpentinite；Ohara et
al.,2012)。
In decades, marine sediment Sampling techniques are more based on traditional boat-carrying band cable sampler, such as gravity is box,
Grab bucket and piston coring apparatus etc..But (such as gravity is box, grab bucket and piston column for these traditional boat-carrying band cable samplers
Sampler etc.), if in super deep ocean work, various Limits properties and difficulty can be brought.If the seabed deeper than transferring to 1 myriametre,
In addition to the weight of sampling equipment, the deadweight of wirerope also reaches very large (more than 20 tons), and this is to winch dynamical system, steel
The key technologies such as cable tensile strength are all great challenges, while the requirement to scientific investigation ship tonnage and quarter deck working area is also
The problem of can not be ignored.Boat-carrying band cable sampling technique is used for having number of drawbacks during deep-sea in a word, in addition to the above-mentioned problems, also wraps
Include that research ship tonnage demand is high, sampling point location is inaccurate, hawser is easily big by seabed reef lash, sampler damage probability
Deng.Therefore, so far, it is more rare that sampling work is carried out in ultra-deep marine site by boat-carrying band cable sampling equipment.
Current only a few developed country such as the U.S., Japan is by deep-sea drilling ship (resolution number, the earth number) and deeply
Extra large underwater robot (ROV Kaiko 11000, HROV Nereus) has carried out bottom sediment collection research in ultra-deep marine site.
Until 2012, deep-sea drilling ship just successfully carried out probing in nearly 7000 meters of Japan trench, and obtains Japan east in 2011
Sea-bottom deposit columnar samples after the shake of backlands in Japan trench subduction zone.But drilling ship operation and use cost are all high, wait ground
The scientific proposals schedule of ball number probing was discharged to after 10 years.And so expensive deep-sea drilling device security
Not high, the Kaiko11000 of the whole world operating water depth maximum of Japanese ocean research and development organization (JAMSTEC) research and development is under water
Robot, in 2003 in the operation process of Mariana Trench because being lost by typhoon influence, forever in abyss
(en.wikipedia.org/wiki/Kaikō).The Poseidon robot that U.S.'s WHOI (WHOI) is developed
(HROV Nereus) succeeded dive in 2012 to Mariana Trench bosom, but in May, 2014 in Ke Madeke trenches
(Kermadec Trench) dive loses (www.whoi.edu/main/nereus) to during myriametre.
The shortage of ultra-deep sea sampling technique has seriously hindered the research of deep-sea geology and life science.Available for ultra-deep
The untethered sampling technique problems demand in sea is solved.
The content of the invention
It is an object of the invention to：A kind of equipment that can carry out Seafloor sediment sampling in ultra-deep sea is provided, with more
High reliability, security, while there is lower cost than existing band cable sampling equipment.
The above-mentioned purpose of the present invention is achieved through the following technical solutions：
The column shaped deposit gravity corer that a kind of deep-sea untethered samples operation is provided, it generally include recovery unit and
Discarding unit；Described recovery unit at least includes the hitch gear being connected with floating body and the sampler of hitch gear lower section connection
Inner tube；Described discarding unit includes sampler outer tube, balancing weight and triggering unlocking mechanism；Described balancing weight is outside sampler
Pipe outer wall top is circumferentially disposed；Described triggering unlocking mechanism is socketed on the sampler outer tube outer wall below balancing weight；
Described sampler outer tube both ends open, described sampler inner tube is placed in sampler outer tube and can be in sampler
Slid axially in outer tube, described sampler outer tube wall stage casing is circumferentially uniformly arranged at least two lock-bit through hole, sampler Inner
The circumferentially arranged lock-bit groove of pipe outer wall or expanding lock-bit hole, the lock-bit through hole and lock-bit groove of sampler inner and outer pipes dock to be formed every
Locking ball is designed with individual space, the relative position for locking inner and outer pipes makes that between inner and outer pipes relative displacement can not be produced；Institute
The triggering unlocking mechanism top stated is unblock sleeve pipe, is placed on edge in the middle part of epimere in the sampling outer tube outer wall, unblock internal surface of sleeve pipe
It is circumferentially with the bead returning groove for being enough to accommodate whole locking ball；Described triggering unlocking mechanism bottom for bottom out ring and anchor ring with it is described
Unlock the axially vertical of sleeve pipe；The described ring that bottoms out more than the described height of sampler outer tube 1/2, and with unlocking sleeve ttom of pipe
Portion is fixedly connected by connecting rod；When described locking ball locks the position of sampler inner and outer pipes, above described bead returning groove
Unblock internal surface of sleeve pipe and sampler inner and outer pipes lock-bit through hole and lock-bit groove fix locking ball jointly；Described bead returning groove is located at
Below locking ball, and described unblock the distance between sleeve upper end and balancing weight lower edge is more than between bead returning groove and locking ball
Distance.
In preferred embodiments of the present invention, in order to stablize the sinking that sampler is overall, preferably outside described sampler outer tube
Rear-fin stabilizer is set above wall, described balancing weight；Described rear-fin stabilizer can be improved based on fluid mechanics principle
The various structure types of sampler sinking stability.
In the further preferred scheme of the present invention, in order to further improve the stabilization of untethered sampler underwater exercise posture
Property, the action effect of increase rear-fin stabilizer, described rear-fin stabilizer top is cylinder, and cylinder bottom is with tip；Described is steady
Determine empennage identical with described rear-fin stabilizer top cylinder external diameter with the spacing of described balancing weight.
In a kind of currently preferred scheme, auxiliary unlocking device is further provided with described triggering unlocking mechanism；Institute
The auxiliary unlocking device stated includes strength compression spring, interim prevention device and time-release units；Described unblock sleeve pipe point
Upper and lower two parts, described bead returning groove is located at upper part, and the described ring that bottoms out is fixedly connected with lower part；Described compression bullet
Spring is in compressive state between being located at described unblock upper and lower two parts of sleeve pipe, and described pressure is overcome by described interim prevention device
Described unblock upper and lower two parts of sleeve pipe are fixed together by the elastic force of contracting spring；Described compression spring reduction length is not
Less than the distance between the bead returning groove and locking ball；Described interim prevention device at least includes fusible cable；Described
Time-release units include watertight electronics storehouse, watertight cable and watertight socket；Mechanical timer is set in described watertight electronics storehouse
Device, timing switch circuit, battery, power switch device, described timing switch circuit pass through the watertight socket and watertight
The interim fusible cable prevented in device described in cable connection, is opened in the predetermined time triggered timing of the mechanical timer
Powered-down road, the fusing fusible cable, release the tightening state of the interim prevention device.
In further preferred a kind of scheme of the invention, described interim prevention device is at least 2 of equal length without bullet
Property fusible cable, the cable two ends described in every be separately fixed at unblock the upper and lower two parts of sleeve pipe on, will unblock sleeve pipe on,
Lower two parts are strained and fixed.
In another scheme of the invention further preferred, described interim prevention device by not closed hoop fastener and
Fusible cable is constituted；Described not closed hoop fastener is by annular snap fit by described unblock sleeve pipe upper and lower two
Part tightens together, and tenses its inc two ends by several fusible cables, is fixedly connected.
In preferred embodiments of the present invention, described fusible cable can be made up of electric heating hydrolyzed-silk or corrosion cable；This hair
Bright most preferably nichrome wire.
In another preferred scheme of the invention, in described recovery unit, the hitch gear being connected with floating body
It is made up of release hook, electronic timing storehouse, watertight socket, cable and fusible cable；Described release hook includes stator and turned
The electronic timing orlop portion is fixedly connected with the top of moving plate, described sampling inner tube, described electronic timing silo roof portion, which is fixed, to be connected
Connect described stator bottom；Described rotatable lamella one end is articulated with the top of stator, and the other end can be rotated by axle of pin joint
So as to open hook；Hitch gear is additionally provided with the prevention lever that rotatable lamella can be prevented to open；Lever is prevented to pass through fusible cable
When being fastened with stator, the obstruction that rotatable lamella is prevented from lever can not rotating opening hook；Set in described electronic timing storehouse
Mechanical timer, timing switch circuit, battery, power switch device are put, described timing switch circuit passes through the watertight
Socket and watertight cable connect the fusible cable.
Sampler operation principle of the present invention is as follows：Deliver sampler and enter sea, sampler can balancing weight help
It is lower to keep.After sampler is bottomed out and sampler inner and outer pipes insertion sea-bottom deposit layer depth reaches requirement, described bottoms out
Ring is bottomed out, by upward resistance, is driven unblock sleeve pipe overall along sampler outer tube outer wall upward sliding, is slid into unblock sleeve pipe
When the bead returning groove on top is relative with the lock-bit through hole of outer tube, the locking ball of locking sampler inner and outer pipes position can enter bead returning groove
It is interior, make the locking action of locking ball fail to unlock the inner and outer pipes of sampler；If sampler, which encounters abnormal conditions, to be caused
Bottoming out ring, to bottom out unsuccessful or insertion depth not enough, fails to make to bottom out ring and promotes unblock sleeve pipe upward sliding, leads to not complete
Above-mentioned unblock, auxiliary unlocking device can connect timing switch circuit in the time-release units predetermined time, and fusing is interim to be prevented
Fusible cable in device, release it is interim prevent device to the unblock upper and lower two-part fastening of sleeve pipe, in the two parts it
Between compressed compression spring release, the unblock sleeve pipe top with bead returning groove under the promotion of compression spring along outer tube outer wall to
Upper to slide, when bead returning groove is relative with the lock-bit through hole of outer tube, locking ball can enter described bead returning groove, so as to trigger unblock.
After the completion of unblock, described ball float can provide enough upward buoyancy for whole recovery unit, and by hawser by sampler
Inner tube is extracted from sampler outer tube, is achieved in being completely separated for recovery unit and discarding unit in sampler；After separation
Recovery unit is overall in buoyancy float downward to sea, and scientific investigation personnel carry out salvaging recovery.If above-mentioned double unlocking mechanism
Fail, then the hitch gear in preferred scheme of the present invention can be utilized to start in the scheduled time, the fixed release hook of fusing
Fusible cable, release hook discharges connected hawser, the floating body of costliness is departed from discarding unit and float
After be recovered.
Compared with prior art, untethered sampler of the present invention has low cost, the significant advantage of high reliability.This
The untethered sampler of invention uses purely mechanic connection in unblock relieving mechanism, compared to main using electronic devices such as sensors
The sampler for separating inner and outer pipes is lower in cost, and higher in reliability, stability is stronger；And need not specially design and
Consider the problems such as the sealing of electronic component, pressure-resistant and anticorrosion, it is ensured that also can be cost-effective while high reliability.Test table
Bright, untethered sampler of the invention remains to realize safe and reliable recovery, and sampling length 1-10m in the seabed of 11000m depth
Classification is adjustable, significantly reduces the loss risk of precision equipment and precious sample, and due to existing without hawser, therefore completely
Avoid a series of problems that the existing hawser for having cable sampling equipment is brought so that the activity duration once sampled can shorten
To within 2 hours, the activity duration length existed with cable gravity core system conventional use of at present is solved breakthroughly, depth is difficult to
The drawbacks such as sea sampling, for same Adjacent Sea Area lay simultaneously multiple samplers carry out continuous multidraw operation provide it is good
Good antecedent basis.
The present invention also provides described untethered sampler in marine sediment investigation, coastal waters submarine rock and soil engineering investigation, sea
Foreign mineral investigation, GEOCHEMICAL SURVEY, physical prospecting substrate checking investigation, shore bank engineering, geologic mapping sampling, dam alluvial investigation etc.
Application in the sampling operation in field.
Brief description of the drawings
Fig. 1 is the untethered sampler overall structure diagram of the embodiment of the present invention 1.
Fig. 2 is the axial sectional view of the triggering unlocking mechanism of the untethered sampler of the embodiment of the present invention 1.
Fig. 3 is the untethered sampler auxiliary unlocking device structural representation of the embodiment of the present invention 1.
Fig. 4 is the untethered sampler auxiliary unlocking device structural representation of the embodiment of the present invention 2.
Fig. 5 is theory diagram inside the untethered sampler watertight electronics storehouse of the embodiment of the present invention 1,2.
Fig. 6 is the structural representation of the untethered sampler hitch gear of the embodiment of the present invention 3.
Embodiment
Technical scheme is further elaborated on below by the mode of embodiment.
Embodiment 1
A kind of untethered gravity corer, it generally includes recovery unit and discarding unit；
As shown in figure 1, recovery unit includes hitch gear 1 and the sampler inner tube 4 that can be connected with floating body；Hitch gear 1
Bottom is fixedly connected with the top of sampler inner tube 4；Described discarding unit includes sampler outer tube 5, balancing weight 6, rear-fin stabilizer 7
With triggering unlocking mechanism 8；Described balancing weight 6 is circumferentially disposed on the outer wall top of sampler outer tube 5；Described triggering unlocking mechanism
8 are socketed on the outer wall of sampler outer tube 5 of the lower section of balancing weight 6；Described rear-fin stabilizer 7 is socketed in the sampling of the top of balancing weight 6
On the outer wall of device outer tube 5；
As shown in Fig. 2 the both ends open of sampler outer tube 5, sampler inner tube 4 is placed in sampler outer tube 5 and can be in sampling
Slid axially in device outer tube 5, the tube wall stage casing of sampler outer tube 5 is circumferentially uniformly arranged 8 lock-bit through holes 51, sampler Inner pipes
4 tube walls are circumferentially uniformly arranged 8 expanding lock-bit through holes 41, the lock-bit through hole 51 of sampler inner and outer pipe and expanding lock-bit hole 41
Dock in each space formed and be designed with locking ball 9, the relative position for locking inner and outer pipes makes to produce between inner and outer pipes
Raw relative displacement；
As shown in Figure 2,3, triggering unlocking mechanism 8 top is unblock sleeve pipe 81, and unblock sleeve pipe 81 is further divided to upper and lower two
Point；Unlock in the middle part of the upper internal partial wall of sleeve pipe 81 circumferentially arranged with the bead returning groove 811 for being enough to accommodate whole locking ball 9；Locking ball 9
When locking the position of sampler inner and outer pipes, by the lock-bit of the inwall and sampler outer tube 4 of the unblock sleeve pipe 81 of the top of bead returning groove 811
Through hole 41 and the expanding lock-bit through hole 51 of sampler inner tube 5 fix locking ball 9 jointly；Bead returning groove 811 is located at the lower section of locking ball 9,
And the distance between the upper end of sleeve pipe 81 and the lower edge of balancing weight 6 are unlocked more than the distance between bead returning groove 811 and locking ball 9；Unblock
The compression spring 10 in compressive state is provided between upper and lower two parts of sleeve pipe 81, the reduction length of compression spring 10 is not less than
The distance between bead returning groove 811 and locking ball 9；The upper and lower part joining place of unblock sleeve pipe 81 is respectively equipped with flange, by not closing
Fasteners 11 overcome the elastic force of compression spring 10 to unlock sleeve pipe 81 upper and lower two with the flange by annular snap fit
Part tightens together, and is tensed the inc two ends of closed hoop fastener 11 by several nichrome wires 12；
Bottom out and watertight electronics storehouse 13 is set on ring 82；The lower part of unblock sleeve pipe 81 is fixedly connected with bottoming out ring 82 by connecting rod 821,
The anchor ring of ring 82 is bottomed out with unlocking the axially vertical of sleeve pipe 81；Ring 82 is bottomed out more than 1/2 height of sampler outer tube 5；
As shown in Fig. 3,5, watertight electronics storehouse 13 is outer to set watertight socket 14, and watertight socket 14 is connected by watertight cable 15
Nichrome wire 12；Mechanical timer is set to switch 131, timing switch circuit 132, battery 133, power supply in watertight electronics storehouse 13
Switching device 134 and regulation button 135；Watertight socket 14 is electrically connected in watertight electronics storehouse 13 with timing switch circuit 132；
The predetermined time triggered timing switch circuit 132 of mechanical timer 131, timing switch circuit 132 pass through watertight socket 14, water
Cipher telegram cable 15 outputs current to nichrome wire 12, nichrome wire 12 fuses, and releases not closed hoop fastener 11
Tightening state.
Embodiment 2
A kind of untethered gravity corer, it generally includes recovery unit and discarding unit；
As shown in figure 1, recovery unit includes hitch gear 1 and the sampler inner tube 4 that can be connected with floating body；Hitch gear 1
Bottom is fixedly connected with the top of sampler inner tube 4；Described discarding unit includes sampler outer tube 5, balancing weight 6, rear-fin stabilizer 7
With triggering unlocking mechanism 8；Described balancing weight 6 is circumferentially disposed on the outer wall top of sampler outer tube 5；Described triggering unlocking mechanism
8 are socketed on the outer wall of sampler outer tube 5 of the lower section of balancing weight 6；Described rear-fin stabilizer 7 is socketed in the sampling of the top of balancing weight 6
On the outer wall of device outer tube 5；
As shown in Fig. 2 the both ends open of sampler outer tube 5, sampler inner tube 4 is placed in sampler outer tube 5 and can be in sampling
Slid axially in device outer tube 5, the tube wall stage casing of sampler outer tube 5 is circumferentially uniformly arranged 8 lock-bit through holes 51, sampler Inner pipes
What circumferentially arranged one of lock-bit groove 41 of 4 tube walls, the lock-bit through hole 51 of sampler inner and outer pipe and the docking of expanding lock-bit hole 41 were formed
Locking ball 9 is designed with each space, the relative position for locking inner and outer pipes makes that between inner and outer pipes relative position can not be produced
Move；
As shown in figure 4, triggering unlocking mechanism 8 top is unblock sleeve pipe 81, unblock sleeve pipe 81 is further divided to upper and lower two
Point；Unlock in the middle part of the upper internal partial wall of sleeve pipe 81 circumferentially arranged with the bead returning groove 811 for being enough to accommodate whole locking ball 9；Locking ball 9
When locking the position of sampler inner and outer pipes, led to by the lock-bit of the inwall and sampler outer tube 5 of the unblock sleeve pipe of the top of bead returning groove 811
The lock-bit groove 41 of hole 51 and sampler inner tube 4 fixes locking ball 9 jointly；Bead returning groove 811 is located at the lower section of locking ball 9, and unlocking sleeve
The distance between the upper end of pipe 81 and the lower edge of balancing weight 6 are more than the distance between bead returning groove 811 and locking ball 9；Unlock sleeve pipe 81
The compression spring 10 in compressive state is provided between upper and lower two parts, the reduction length of compression spring 10 is not less than bead returning groove 811
The distance between with locking ball 9；Unblock upper and lower two parts of sleeve pipe 81 pull fixation by 4 nichrome wires 12 of equal length,
The every two ends of nichrome wire 12 are respectively fixedly connected with upper and lower two parts of unblock sleeve pipe 81, pass through nichrome wire 12
Drawing overcome the elastic force of compression spring 10 to be tightened together the upper and lower two parts of sleeve pipe 81 are unlocked；Unlock the bottom of sleeve pipe 81
Divide and be fixedly connected with bottoming out ring 82 by connecting rod 821, bottom out the anchor ring of ring 82 with unlocking the axially vertical of sleeve pipe 81；Bottom out ring
82 are located at more than 1/2 height of sampler outer tube 5；Bottom out and watertight electronics storehouse 13 is set on ring 82, watertight electronics storehouse 13 is outer to be set
Watertight socket 14, watertight socket 14 connects nichrome wire 12 by watertight cable 15；As shown in figure 5, watertight electronics storehouse 13
Interior setting mechanical timer 131, timing switch circuit 132, battery 133, power switch device 134；Watertight socket 14 is in water
Electrically connected in the sub- storehouse 13 of cipher telegram with timing switch circuit 132；In the predetermined time triggered time switch electricity of mechanical timer 131
Road 132, timing switch circuit 132 output current to 4 nichrome wires 12,4 by watertight socket 14, watertight cable 15
Nichrome wire 12 fuses, and releases the upper and lower two-part tightening state of unblock sleeve pipe 81.
Embodiment 3
A kind of untethered gravity corer, its overall structure is same as Example 1, and difference is, as shown in fig. 6, described
Hitch gear 1 is made up of release hook, electronic timing storehouse 102, watertight socket 103, watertight cable 104 and fusible cable 105；Institute
The release hook stated includes stator 1011 and rotatable lamella 1012, and the described top of sampling inner tube 4 is fixedly connected with the electronic timing
The bottom of storehouse 102, the described top of electronic timing storehouse 102 is fixedly connected with the described bottom of stator 1011；Described rotatable lamella
1012 one end are articulated with the top of stator 1011, and the other end can rotate to open hook by axle of pin joint；Hitch gear 1 is also
Provided with the prevention lever 1013 that rotatable lamella can be prevented to open；Lever 1013 is prevented to pass through fusible cable 105 and stator 1011
During fastening, the obstruction that rotatable lamella 1012 is prevented from lever 1013 can not rotating opening hook；In described electronic timing storehouse 102
Mechanical timer, timing switch circuit, battery, power switch device are set, and described timing switch circuit passes through the water
Close socket 103 and watertight cable 104 connect the fusible cable 105.Theory structure and Fig. 5 inside described electronic timing storehouse
Shown is identical.
Application examples
Untethered gravity corer described in embodiment 3 is applied to ultra-abyssal sampling operations more than ten thousand metres.
First, the hitch gear 1 of the sampler described in embodiment 3 is connected with existing available floating body by hawser, so
Sampler is delivered afterwards and enters sea, and sampler can keep with the help of balancing weight 6.When sampler is reached in seabed and sampler
Outer tube insertion sea-bottom deposit layer depth reaches after requirement that triggering unlocking mechanism 8 is bottomed out, and bottoms out ring 82 by upward resistance, band
Dynamic unblock sleeve pipe 81 is overall along the outer wall upward sliding of sampler outer tube 5, slides into the lock-bit of bead returning groove 811 and sampler outer tube 5
When through hole 51 is relative, the locking ball 9 of locking sampler inner and outer pipes position can enter in bead returning groove 811, make the locking of locking ball 9
With failure so as to unlock；If sampler encounters abnormal conditions, to cause to bottom out unsuccessful or insertion depth not enough, fails to make to touch
Base ring 82 promotes unblock sleeve pipe 81 along the upward sliding of sampler outer tube 5 and then completes above-mentioned unblock, positioned at the water bottomed out on ring 82
In the sub- storehouse of cipher telegram, timing switch circuit 132 can be connected in the predetermined time of mechanical timer 131, and timing switch circuit 132 leads to
Cross watertight socket 14, watertight cable 15 and output current to nichrome wire 12, nichrome wire 12 fuses, releasing is not closed
The tightening state of fasteners 11, discharges the compression spring 10 compressed, the top of unblock sleeve pipe 81 with bead returning groove 811 exists
Along the outer wall upward sliding of sampler outer tube 5 under the promotion of compression spring 10, when bead returning groove 811 is relative with the lock-bit through hole 51 of outer tube
When, locking ball 9 can enter bead returning groove 811, so as to trigger unblock.After the completion of unblock, ball float 1 can provide foot for whole recovery unit
Enough upward buoyancy, and extracted from sampler outer tube 5 sampler inner tube 4 by hawser 3, it is achieved in returning in sampler
Receive being completely separated for unit and discarding unit；Recovery unit after separation is overall in buoyancy float downward to sea, scientific investigation people
Member can carry out salvaging recovery.If above-mentioned double unlocking mechanism fails, it can be opened using hitch gear in the scheduled time
Dynamic, the fusible cable of the fixed release hook of fusing, release hook discharges connected hawser, can at least make the floating body of costliness
It is able to depart from after discarding unit floats and is recovered.
Claims (9)
1. a kind of deep-sea untethered samples the column shaped deposit gravity corer of operation, it includes recovery unit and discarding unit；Its
It is characterised by：
Described recovery unit at least includes the sampler inner tube of the hitch gear being connected with floating body and the connection of hitch gear lower section；
Described discarding unit includes sampler outer tube, balancing weight and triggering unlocking mechanism；Described balancing weight is outside sampler outer tube
Wall top is circumferentially disposed；Described triggering unlocking mechanism is socketed on the sampler outer tube outer wall below balancing weight；
Described sampler outer tube both ends open, described sampler inner tube is placed in sampler outer tube and can be in sampler outer tube
Inside slide axially, described sampler outer tube wall stage casing is circumferentially uniformly arranged at least two lock-bit through hole, sampler Inner pipes are outer
The circumferentially arranged lock-bit groove of wall or expanding lock-bit hole, the lock-bit through hole and lock-bit groove of sampler inner and outer pipes dock each sky to be formed
Interior to be designed with locking ball, the relative position for locking inner and outer pipes makes that between inner and outer pipes relative displacement can not be produced；Described
It is unblock sleeve pipe to trigger unlocking mechanism top, is placed in the middle part of the sampling outer tube outer wall stage casing, unblock internal surface of sleeve pipe and circumferentially sets
There is the bead returning groove for being enough to accommodate whole locking ball；Described triggering unlocking mechanism bottom is to bottom out ring and anchor ring and the unlocking sleeve
Pipe it is axially vertical；Described bottoms out ring more than the described height of sampler outer tube 1/2, and passes through with unblock sleeve bottom
Connecting rod is fixedly connected；When described locking ball locks the position of sampler inner and outer pipes, the unblock above described bead returning groove
The lock-bit through hole and lock-bit groove of internal surface of sleeve pipe and sampler inner and outer pipes fix locking ball jointly；Described bead returning groove is located at locking ball
Lower section, and the distance between described unblock sleeve upper end and balancing weight lower edge are more than the distance between bead returning groove and locking ball.
2. the sampler described in claim 1, it is characterised in that：On described sampler outer tube outer wall, described balancing weight
Side sets rear-fin stabilizer.
3. the sampler described in claim 2, it is characterised in that：Described rear-fin stabilizer top is cylinder, and cylinder bottom is carried
Tip；Described rear-fin stabilizer is identical with described rear-fin stabilizer top cylinder external diameter with the spacing of described balancing weight.
4. the sampler described in claim 1, it is characterised in that：Auxiliary unblock is further provided with described triggering unlocking mechanism
Device；Described auxiliary unlocking device includes strength compression spring, interim prevention device and time-release units；Described unblock
The upper and lower two parts of sleeve pipe point, described bead returning groove is located at upper part, and the described ring that bottoms out is fixedly connected with lower part；Described
Compression spring is in compressive state between being located at described unblock upper and lower two parts of sleeve pipe, and institute is overcome by described interim prevention device
Described unblock upper and lower two parts of sleeve pipe are fixed together by the elastic force for the compression spring stated；Described compression spring compression
Length is not less than the distance between the bead returning groove and locking ball；Described interim prevention device at least includes fusible cable；
Described time-release units include watertight electronics storehouse, watertight cable and watertight socket；Setting machine in described watertight electronics storehouse
Tool timing means, timing switch circuit, battery, power switch device, described timing switch circuit pass through the watertight socket
And watertight cable connects the fusible cable in the interim prevention device, in the predetermined time triggered of the mechanical timer
Timing switch circuit, the fusing fusible cable, release the tightening state of the interim prevention device.
5. the sampler described in claim 4, it is characterised in that：Described interim prevention device is at least 2 nothings of equal length
Elastic fusible cable, the cable two ends described in every are separately fixed on unblock upper and lower two parts of sleeve pipe, will unlock sleeve pipe
Upper and lower two parts are strained and fixed.
6. the sampler described in claim 4, it is characterised in that：Described interim prevention device by not closed hoop fastener and
Fusible cable is constituted；Described not closed hoop fastener is by annular snap fit by described unblock sleeve pipe upper and lower two
Part tightens together, and tenses its inc two ends by several fusible cables, is fixedly connected.
7. the sampler described in claim 1, it is characterised in that：In described recovery unit, the extension being connected with floating body
Hook mechanism is made up of release hook, electronic timing storehouse, watertight socket, cable and fusible cable；Described release hook includes fixing
The electronic timing orlop portion, described electronic timing silo roof portion are fixedly connected with the top of piece and rotatable lamella, described sampling inner tube
It is fixedly connected with described stator bottom；Described rotatable lamella one end is articulated with the top of stator, the other end can using pin joint as
Axle rotates to open hook；Hitch gear is additionally provided with the prevention lever that rotatable lamella can be prevented to open；Lever is prevented to pass through fusible
When the cable that breaks is fastened with stator, the obstruction that rotatable lamella is prevented from lever can not rotating opening hook；Described electronic timing
Mechanical timer, timing switch circuit, battery, power switch device are set in storehouse, and described timing switch circuit passes through institute
State watertight socket and watertight cable connects the fusible cable.
8. any one sampler described in claim 1-7, it is characterised in that：Described fusible cable is led for nichrome
Line.
9. the sampler described in claim 1 is adjusted in marine sediment investigation, coastal waters submarine rock and soil engineering investigation, ocean mineral
Look into, GEOCHEMICAL SURVEY, physical prospecting substrate checking investigation, shore bank engineering, geologic mapping sampling, dam alluvial are investigated etc., and field takes
Application in sample operation.
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| CN201710255390.0A CN107063743B (en) | 2017-04-19 | 2017-04-19 | A kind of untethered column shaped deposit gravity corer for sampling operation in deep-sea and its application |
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| CN201710255390.0A CN107063743B (en) | 2017-04-19 | 2017-04-19 | A kind of untethered column shaped deposit gravity corer for sampling operation in deep-sea and its application |
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| CN107063743B CN107063743B (en) | 2019-06-21 |
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| CN108332986A (en) * | 2018-01-25 | 2018-07-27 | 浙江大学 | A kind of sampler and method |
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| CN112747949A (en) * | 2021-01-14 | 2021-05-04 | 自然资源部第一海洋研究所 | Column-box type integrated sampler suitable for deep sea sediment sampling operation |
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