CN107063743B - A kind of untethered column shaped deposit gravity corer for sampling operation in deep-sea and its application - Google Patents
A kind of untethered column shaped deposit gravity corer for sampling operation in deep-sea and its application Download PDFInfo
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- CN107063743B CN107063743B CN201710255390.0A CN201710255390A CN107063743B CN 107063743 B CN107063743 B CN 107063743B CN 201710255390 A CN201710255390 A CN 201710255390A CN 107063743 B CN107063743 B CN 107063743B
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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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Abstract
The present invention provides a kind of untethered gravity corer, including recovery unit and discarding unit；Recovery unit includes the hook connecting with floating body and sampler inner tube；At the top of hook connection floating body bottom and sampler inner tube；Discarding unit includes sampler outer tube, clump weight and triggering unlocking mechanism；Triggering unlocking mechanism is socketed on the sampler outer tube outer wall below clump weight；Sampler inner tube is placed in sampler outer tube and can slide axially in sampler outer tube, sampler outer tube wall middle section is uniformly arranged in the circumferential direction at least two lock-bit through-hole, lock-bit slot or expanding lock-bit hole is arranged in sampler outer wall of inner tube, is equipped with locking ball in lock-bit through-hole and lock-bit slot；It unlocks and is equipped with bead returning groove in the middle part of internal surface of sleeve pipe；Bead returning groove is located at below locking ball, and unlocks the distance between sleeve upper end and clump weight lower edge and be greater than the distance between bead returning groove and locking ball.Untethered gravity corer of the invention has higher reliability, safety and lower cost.
Description
Technical field
The present invention relates to a kind of hydrospace detection equipment, and in particular to a kind of submarine sedimentary strata sampler, more particularly to it is a kind of
Untethered submarine sedimentary strata sampler.
Background technique
The deep-sea earth and life science are current international great front line science fields, and development is closely fixed against deep-sea skill
The breakthrough innovation of art means.Obtaining bottom sediment to be most generally is also one of most important means in the research process of deep-sea,
It is of great significance to geology, geologic climate and the microbial information in research deposit.Entire bottom sediment research history is made a general survey of,
It is not difficult to find that up to the present, studying very the bottom sediment in sea bucket abyss etc. ultra-deep (depth of water is greater than 7000 meters) sea area
It is weak.The whole world has the depth of 25 trenches to be greater than 7000 meters, wherein just having 18, including Mariana Pacific
Trench.Deep diving detection few in number, discovery not only has geologic sedimentation phenomenon abundant under the bucket abyss of sea, 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 the microbial flora adjoint with serpentinite (Fryer, 1995,2012；Ohara et
al.,2012)。
In decades, marine sediment sampling technique is mostly based on traditional boat-carrying band cable sampler, such as gravity is box,
Grab bucket and piston coring apparatus etc..But these traditional boat-carryings band cable samplers (for example gravity is box, grab bucket and piston column
Sampler etc.), if various Limits properties and difficulty can be brought in super deep ocean work.If than the seabed for transferring to 1 myriametre depth,
Other than the weight of sampling equipment, the self weight of wirerope also reaches very large (20 tons or more), this is to winch dynamical system, steel
The key technologies such as cable tensile strength are all greatly to challenge, 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 to have a variety of defects when deep-sea in a word, in addition to the above-mentioned problems, also wraps
It is big vulnerable to seabed reef lash, sampler damage probability to include research ship tonnage demand height, sample point position inaccurate, hawser
Deng.Therefore, so far, more rare that sampling work is carried out in ultra-deep sea area 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 acquisition research in ultra-deep sea area.
Until 2012, deep-sea drilling ship just successfully carried out probing in nearly 7000 meters of Japan trench, and obtained 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 has been discharged to ten Nian Yihou.And deep-sea drilling device security expensive in this way
Not high, the maximum Kaiko11000 of whole world operating water depth of Japanese ocean research and development organization (JAMSTEC) research and development is underwater
Robot, in 2003 in the operation process of Mariana Trench because being lost by typhoon influence, forever stay abyss
(en.wikipedia.org/wiki/Kaikō).The Poseidon robot that U.S.'s Woods Hole Ocean Institute (WHOI) is developed
(HROV Nereus) succeeded dive in 2012 to Mariana Trench bosom, but in May, 2014 in Ke Madeke trench
(www.whoi.edu/main/nereus) is lost when (Kermadec Trench) dive is to myriametre.
The shortage of ultra-deep sea sampling technique seriously hinders the research of deep-sea geology and life science.It can be used for ultra-deep
The untethered sampling technique problems demand in sea solves.
Summary 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, is had more
High reliability, safety, while there is lower cost than existing band cable sampling equipment.
Above-mentioned purpose of the invention is achieved through the following technical solutions:
A kind of column shaped deposit gravity corer of the untethered sampling operation in deep-sea is provided, it generally include recovery unit and
Discarding unit；The recovery unit includes at least the sampler connected below the hitch gear and hitch gear connecting with floating body
Inner tube；The discarding unit includes sampler outer tube, clump weight and triggering unlocking mechanism；The clump weight is outside sampler
Pipe outer wall top is circumferentially arranged；The triggering unlocking mechanism is socketed on the sampler outer tube outer wall below clump weight；
The sampler outer tube both ends open, the sampler inner tube are placed in sampler outer tube and can be in samplers
It slides axially in outer tube, the sampler outer tube wall middle section is uniformly arranged in the circumferential direction at least two lock-bit through-hole, in sampler
The circumferentially arranged lock-bit slot of pipe outer wall or expanding lock-bit hole, the lock-bit through-hole and lock-bit slot of sampler inner and outer pipes dock to be formed it is every
It is designed with locking ball in a space, for locking the relative position of inner and outer pipes, makes that relative displacement cannot be generated between inner and outer pipes；Institute
The triggering unlocking mechanism top stated is unlock casing, is placed on upper section in the sampling outer tube outer wall, edge in the middle part of unlock internal surface of sleeve pipe
It is circumferentially with the bead returning groove for being sufficient to accommodate entire locking ball；The triggering unlocking mechanism lower part be bottom out ring and anchor ring with it is described
Unlock the axially vertical of casing；The described ring that bottoms out is located at 1/2 height of sampler outer tube or more, and with unlocking sleeve tube bottom
Portion is fixed by the connecting rod connection；When the position of the locking ball locking sampler inner and outer pipes, above the bead returning groove
Unlock internal surface of sleeve pipe and sampler inner and outer pipes lock-bit through-hole and lock-bit slot jointly fix locking ball；The bead returning groove is located at
Below locking ball, and the distance between described unlock sleeve upper end and clump weight lower edge is greater than between bead returning groove and locking ball
Distance.
In preferred embodiments of the present invention, in order to stablize the sinking of sampler entirety, preferably outside the sampler outer tube
Rear-fin stabilizer is set above wall, the clump weight；The rear-fin stabilizer can be 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 increase the stabilization of untethered sampler underwater exercise posture
Property, increase rear-fin stabilizer function and effect, the rear-fin stabilizer top be cylinder, cylinder lower part have tip；Described is steady
The spacing for determining empennage and the clump weight is identical as the rear-fin stabilizer top cylinder outer diameter.
In a kind of currently preferred scheme, auxiliary unlocking device is further provided in the triggering unlocking mechanism；Institute
The auxiliary unlocking device stated includes strength compressed spring, interim prevention device and time-release units；The unlock casing point
Upper and lower two parts, the bead returning groove are located at upper part, and the ring that bottoms out is fixedly connected with lower part；The compression bullet
Spring is in compressive state between the upper and lower two parts of the unlock casing, overcomes the pressure by the interim prevention device
The upper and lower two parts of the unlock casing are fixed together by the elastic force of contracting spring；The compressed spring reduction length is not
Less than the distance between the bead returning groove and locking ball；The interim prevention device includes at least fusible cable；Described
Time-release units include watertight electronics storehouse, watertight cable and watertight socket；Mechanical timer is set in the watertight electronics storehouse
Device, timing switch circuit, battery, power switch device, the timing switch circuit pass through the watertight socket and watertight
The fusible cable in device is temporarily prevented described in cable connection, is opened in the scheduled time trigger timing of the mechanical timer
Powered-down road, the fusing fusible cable, release the tightening state of the interim prevention device.
In a kind of further preferred scheme of the present invention, the interim prevention device is at least 2 of equal length without bullet
Property fusible cable, cable both ends described in every be separately fixed at unlock the upper and lower two parts of casing on, will unlock casing on,
Lower two parts are strained and fixed.
In the further preferred another scheme of the present invention, the interim prevention device by not closed hoop fastener and
Fusible cable is constituted；The not closed hoop fastener passes through annular snap fit for the unlock casing upper and lower two
Part tightens together, and tenses its inc both ends by several fusible cables, is fixedly connected.
In preferred embodiments of the present invention, the fusible cable can be made of electric heating hydrolyzed-silk or corrosion cable；This hair
Bright most preferably nichrome wire.
In another preferred scheme of the invention, in the recovery unit, the hitch gear being connect with floating body
It is made of release hook, electronic timing storehouse, watertight socket, cable and fusible cable；The release hook includes fixinig plate and turns
Movable plate, the sampling inner tube top are fixedly connected with electronic timing orlop portion, and the electronic timing the top of the warehouse is fixed to be connected
Connect the fixinig plate bottom；Described rotatable lamella one end is articulated at the top of fixinig plate, and the other end can be rotated by axis of hinge joint
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 fastening with fixinig plate, the obstruction that rotatable lamella is prevented lever can not rotating opening hook；It is set in the electronic timing storehouse
Mechanical timer, timing switch circuit, battery, power switch device are set, the timing switch circuit passes through the watertight
Socket and watertight cable connect the fusible cable.
Sampler working principle of the present invention is as follows: launching sampler and enters sea, sampler can be in the help of clump weight
Lower holding is sunk.After sampler bottoms out and sampler inner and outer pipes insertion sea-bottom deposit layer depth reaches requirement, described is bottomed out
Ring bottoms out, and by upward resistance, drives unlock casing whole along sampler outer tube outer wall upward sliding, slides into unlock casing
When the bead returning groove on top is opposite 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 effect 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 insufficient, and failing, which makes to bottom out ring, pushes unlock casing upward sliding, leads to not complete
Above-mentioned unlock, auxiliary unlocking device can connect timing switch circuit in the time-release units scheduled time, and fuse interim prevent
Fusible cable in device, release it is interim prevent device to unlock casing two-part fastening above and below, in the two parts it
Between the release of compressed compressed spring, the unlock casing top with bead returning groove under the promotion of compressed spring along outer tube outer wall to
Upper sliding, when bead returning groove is opposite with the lock-bit through-hole of outer tube, locking ball can enter the bead returning groove, to trigger unlock.
After the completion of unlock, the floating body can provide enough upward buoyancy for entire recovery unit, and pass through hawser for 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 whole in buoyancy float downward to sea, and scientific investigation personnel carry out salvaging recycling.If above-mentioned double unlocking mechanism
It fails, then the hitch gear that can use in the preferred solution of the invention starts in the predetermined time, the fixed release hook of fusing
Fusible cable, release hook discharges hawser connected to it, so that expensive floating body is detached from discarding unit and float
After be recovered.
Compared with prior art, untethered sampler of the present invention has the significant advantage of low cost, high reliability.This
The untethered sampler of invention uses purely mechanic connection in unlock relieving mechanism, compared to mainly 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 do not need specially design and
Consider electronic component sealing, pressure resistance and anticorrosion the problems such as, guarantee high reliability while also can save the cost.Test table
Bright, untethered sampler of the invention is still able to achieve safe and reliable recycling, and sampling length 1-10m in the seabed of 11000m depth
It is classified adjustable, significantly reduces the loss risk of precision equipment and precious sample, and since no hawser exists, completely
Existing hawser bring a series of problems for having cable sampling equipment is avoided, the activity duration once sampled is shortened
To within 2 hours, activity duration length existing for current conventional use of band cable gravity core system is solved breakthroughly, is difficult to depth
The drawbacks such as sea sampling, for same Adjacent Sea Area lay simultaneously the continuous multidraw operation of multiple samplers progress provide it is good
Good antecedent basis.
The present invention also provides the untethered samplers in marine sediment investigation, coastal waters submarine rock and soil engineering investigation, sea
Foreign mineral investigation, GEOCHEMICAL SURVEY, physical prospecting substrate verifying investigation, shore bank engineering, geologic mapping sampling, dam siltation investigation etc.
Application in the sampling operation in field.
Detailed description of the invention
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 schematic diagram of the embodiment of the present invention 1.
Fig. 4 is the untethered sampler auxiliary unlocking device structural schematic diagram of the embodiment of the present invention 2.
Fig. 5 is functional block diagram inside the untethered sampler watertight electronics storehouse of the embodiment of the present invention 1,2.
Fig. 6 is the structural schematic diagram of the untethered sampler hitch gear of the embodiment of the present invention 3.
Specific embodiment
Technical solution of the present invention is further elaborated 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 the hitch gear 1 that can be connect with floating body and sampler inner tube 4；Hitch gear 1
It is fixedly connected at the top of bottom and sampler inner tube 4；The discarding unit includes sampler outer tube 5, clump weight 6, rear-fin stabilizer 7
With triggering unlocking mechanism 8；The clump weight 6 is circumferentially arranged on 5 outer wall top of sampler outer tube；The triggering unlocking mechanism
8 are socketed on 5 outer wall of sampler outer tube of 6 lower section of clump weight；The rear-fin stabilizer 7 is socketed in the sampling of 6 top of clump weight
On 5 outer wall of device outer tube；
As shown in Fig. 2, 5 both ends open of sampler outer tube, sampler inner tube 4 is placed in sampler outer tube 5 and can sample
It slides axially in device outer tube 5,5 tube wall middle section of sampler outer tube is uniformly arranged in the circumferential direction 8 lock-bit through-holes 51, sampler inner tube
4 tube walls are uniformly arranged in the circumferential direction 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
It docks in each space formed and is designed with locking ball 9, for locking the relative position of inner and outer pipes, make to produce between inner and outer pipes
Raw relative displacement；
As shown in Figure 2,3, triggering 8 top of unlocking mechanism is unlock casing 81, and unlock casing 81 is further divided to upper and lower two
Point；It unlocks in the middle part of the upper internal partial wall of casing 81 circumferentially arranged with the bead returning groove 811 for being sufficient to accommodate entire locking ball 9；Locking ball 9
When locking the position of sampler inner and outer pipes, by the inner wall of the unlock casing 81 of 811 top of bead returning groove and the lock-bit of sampler outer tube 4
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 9 lower section of locking ball,
And unlock the distance between 81 upper end of casing and 6 lower edge of clump weight are greater than the distance between bead returning groove 811 and locking ball 9；Unlock
The compressed spring 10 in compressive state is equipped between upper and lower two parts of casing 81,10 reduction length of compressed spring is not less than
The distance between bead returning groove 811 and locking ball 9；The upper and lower part joining place of unlock casing 81 is respectively equipped with flange, by not being closed
Fasteners 11 overcome the elastic force of compressed spring 10 that will unlock casing 81 upper and lower two with the flange by annular snap fit
Part tightens together, and is tensed the inc both ends of closed hoop fastener 11 by several nichrome wires 12；
Bottom out setting watertight electronics storehouse 13 on ring 82；Unlock the lower part of casing 81 with bottom out ring 82 and be fixedly connected by connecting rod 821,
Bottom out the axially vertical of the anchor ring of ring 82 and unlock casing 81；It bottoms out ring 82 and is located at 1/2 height of sampler outer tube 5 or more；
As shown in Fig. 3,5, watertight socket 14 is set, watertight socket 14 is connected by watertight cable 15 outside watertight electronics storehouse 13
Nichrome wire 12；Mechanical timer switch 131, timing switch circuit 132, battery 133, power supply are set 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 scheduled time trigger 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, and 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 the hitch gear 1 that can be connect with floating body and sampler inner tube 4；Hitch gear 1
It is fixedly connected at the top of bottom and sampler inner tube 4；The discarding unit includes sampler outer tube 5, clump weight 6, rear-fin stabilizer 7
With triggering unlocking mechanism 8；The clump weight 6 is circumferentially arranged on 5 outer wall top of sampler outer tube；The triggering unlocking mechanism
8 are socketed on 5 outer wall of sampler outer tube of 6 lower section of clump weight；The rear-fin stabilizer 7 is socketed in the sampling of 6 top of clump weight
On 5 outer wall of device outer tube；
As shown in Fig. 2, 5 both ends open of sampler outer tube, sampler inner tube 4 is placed in sampler outer tube 5 and can sample
It slides axially in device outer tube 5,5 tube wall middle section of sampler outer tube is uniformly arranged in the circumferential direction 8 lock-bit through-holes 51, sampler inner tube
What circumferentially arranged one of lock-bit slot 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
It is designed with locking ball 9 in each space, for locking the relative position of inner and outer pipes, makes that opposite position cannot be generated between inner and outer pipes
It moves；
As shown in figure 4, triggering 8 top of unlocking mechanism is unlock casing 81, unlock casing 81 is further divided to upper and lower two
Point；It unlocks in the middle part of the upper internal partial wall of casing 81 circumferentially arranged with the bead returning groove 811 for being sufficient to accommodate entire locking ball 9；Locking ball 9
When locking the position of sampler inner and outer pipes, led to by the lock-bit of the inner wall and sampler outer tube 5 of the unlock casing of 811 top of bead returning groove
The lock-bit slot 41 of hole 51 and sampler inner tube 4 fixes locking ball 9 jointly；Bead returning groove 811 is located at 9 lower section of locking ball, and unlocking sleeve
The distance between 81 upper end of pipe and 6 lower edge of clump weight are greater than the distance between bead returning groove 811 and locking ball 9；Unlock casing 81
The compressed spring 10 in compressive state is equipped between upper and lower two parts, 10 reduction length of compressed spring is not less than bead returning groove 811
The distance between locking ball 9；It unlocks the upper and lower two parts of casing 81 and pulls fixation by 4 nichrome wires 12 of equal length,
Every 12 both ends of nichrome wire are respectively fixedly connected with upper and lower two parts of unlock casing 81, pass through nichrome wire 12
Drawing overcome the elastic force of compressed spring 10 by unlock the upper and lower two parts of casing 81 tighten together；Unlock the lower part of casing 81
Point with bottom out ring 82 and be fixedly connected by connecting rod 821, bottom out the anchor ring of ring 82 and unlock the axially vertical of casing 81；Bottom out ring
82 are located at 1/2 height of sampler outer tube 5 or more；Setting watertight electronics storehouse 13 on ring 82 is bottomed out, is arranged outside watertight electronics storehouse 13
Watertight socket 14, watertight socket 14 connect 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
Cipher telegram is electrically connected in sub- storehouse 13 with timing switch circuit 132；In the scheduled time trigger 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 unlock casing 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 of release hook, electronic timing storehouse 102, watertight socket 103, watertight cable 104 and fusible cable 105；Institute
The release hook stated includes fixinig plate 1011 and rotatable lamella 1012, is fixedly connected with the electronic timing at the top of the sampling inner tube 4
102 bottom of storehouse is fixedly connected with 1011 bottom of fixinig plate at the top of the electronic timing storehouse 102；The rotatable lamella
1012 one end are articulated with 1011 top of fixinig plate, and the other end can rotate to open hook as axis using hinge joint；Hitch gear 1 is also
Equipped with the prevention lever 1013 that rotatable lamella can be prevented to open；Lever 1013 is prevented to pass through fusible cable 105 and fixinig plate 1011
When fastening, the obstruction that rotatable lamella 1012 is prevented lever 1013 can not rotating opening hook；In the electronic timing storehouse 102
Mechanical timer, timing switch circuit, battery, power switch device are set, and the 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 the electronic timing storehouse
Shown in it is identical.
Application examples
Untethered gravity corer described in embodiment 3 is applied to the ultra-abyssal sampling operation of ten thousand metres or more.
Firstly, the hitch gear 1 of sampler described in embodiment 3 is connect with existing available floating body by hawser, so
Sampler is launched afterwards and enters sea, and sampler can keep with the help of clump weight 6.When sampler reaches in seabed and sampler
After outer tube insertion sea-bottom deposit layer depth reaches requirement, triggering unlocking mechanism 8 is bottomed out, and bottoms out ring 82 by upward resistance, band
Dynamic unlock casing 81 is whole along 5 outer wall upward sliding of sampler outer tube, slides into the lock-bit of bead returning groove 811 Yu sampler outer tube 5
When through-hole 51 is opposite, the locking ball 9 for locking sampler inner and outer pipes position can enter in bead returning groove 811, make the locking of locking ball 9
With failure to unlock；If sampler encounters abnormal conditions, to lead to bottom out unsuccessful or insertion depth insufficient, fails to make to touch
Base ring 82 pushes unlock casing 81 along 5 upward sliding of sampler outer tube and then completes above-mentioned unlock, 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 scheduled time of mechanical timer 131, and timing switch circuit 132 is logical
Cross watertight socket 14, watertight cable 15 outputs current to nichrome wire 12, nichrome wire 12 fuse, releasing be not closed
The tightening state of fasteners 11 discharges compressed compressed spring 10, and 81 top of unlock casing with bead returning groove 811 exists
Along 5 outer wall upward sliding of sampler outer tube under the promotion of compressed spring 10, when the lock-bit through-hole 51 of bead returning groove 811 and outer tube is opposite
When, locking ball 9 can enter bead returning groove 811, to trigger unlock.After the completion of unlock, floating body can provide foot for entire recovery unit
Enough upward buoyancy, and extracted sampler inner tube 4 from sampler outer tube 5 by hawser, it is achieved in sampler and returns
Receive being completely separated for unit and discarding unit；Recovery unit after separation is whole in buoyancy float downward to sea, scientific investigation people
Member can carry out salvaging recycling.If above-mentioned double unlocking mechanism fails, it can use hitch gear and opened in the predetermined time
Dynamic, the fusible cable of the fixed release hook of fusing, release hook discharges hawser connected to it, can at least make expensive floating body
It is able to be detached from after discarding unit floats and be recovered.
Claims (9)
1. a kind of column shaped deposit gravity corer of the untethered sampling operation in deep-sea, it includes recovery unit and discarding unit；Its
It is characterized in that:
The recovery unit includes at least the sampler inner tube connected below the hitch gear and hitch gear connecting with floating body；
The discarding unit includes sampler outer tube, clump weight and triggering unlocking mechanism；The clump weight is outside sampler outer tube
Wall top is circumferentially arranged；The triggering unlocking mechanism is socketed on the sampler outer tube outer wall below clump weight；
The sampler outer tube both ends open, the sampler inner tube are placed in sampler outer tube and can be in sampler outer tubes
It inside slides axially, the sampler outer tube wall middle section is uniformly arranged in the circumferential direction at least two lock-bit through-hole, outside sampler inner tube
The circumferentially arranged lock-bit slot of wall or expanding lock-bit hole, the lock-bit through-hole and lock-bit slot of sampler inner and outer pipes dock each sky to be formed
It is interior to be designed with locking ball, for locking the relative position of inner and outer pipes, make that relative displacement cannot be generated between inner and outer pipes；Described
Triggering unlocking mechanism top is unlock casing, is placed on the sampling outer tube outer wall middle section, circumferentially sets in the middle part of unlock internal surface of sleeve pipe
There is the bead returning groove for being sufficient to accommodate entire locking ball；The triggering unlocking mechanism lower part is to bottom out ring and anchor ring and the unlocking sleeve
Pipe it is axially vertical；The ring that bottoms out is located at 1/2 height of sampler outer tube or more, and passes through with unlock sleeve bottom
Connecting rod is fixedly connected；When the position of the locking ball locking sampler inner and outer pipes, by the unlock above the bead returning groove
The lock-bit through-hole and lock-bit slot of internal surface of sleeve pipe and sampler inner and outer pipes fix locking ball jointly；The bead returning groove is located at locking ball
Lower section, and the distance between the unlock sleeve upper end and clump weight lower edge are greater than the distance between bead returning groove and locking ball.
2. sampler described in claim 1, it is characterised in that: on the sampler outer tube outer wall, the clump weight
Side's setting rear-fin stabilizer.
3. sampler as claimed in claim 2, it is characterised in that: the rear-fin stabilizer top is cylinder, and cylinder lower part has
Tip；The spacing of the rear-fin stabilizer and the clump weight is identical as the rear-fin stabilizer top cylinder outer diameter.
4. sampler described in claim 1, it is characterised in that: be further provided with auxiliary unlock in the triggering unlocking mechanism
Device；The auxiliary unlocking device includes strength compressed spring, interim prevention device and time-release units；The unlock
The upper and lower two parts of casing point, the bead returning groove are located at upper part, and the ring that bottoms out is fixedly connected with lower part；Described
Compressed spring is in compressive state between the upper and lower two parts of the unlock casing, overcomes institute by the interim prevention device
The upper and lower two parts of the unlock casing are fixed together by the elastic force for the compressed spring stated；The compressed spring compression
Length is not less than the distance between the bead returning groove and locking ball；The interim prevention device includes at least fusible cable；
The time-release units include watertight electronics storehouse, watertight cable and watertight socket；Setting machine in the watertight electronics storehouse
Tool timing means, timing switch circuit, battery, power switch device, the timing switch circuit pass through the watertight socket
And watertight cable connects the fusible cable in the interim prevention device, in the scheduled time trigger of the mechanical timer
Timing switch circuit, the fusing fusible cable, release the tightening state of the interim prevention device.
5. sampler as claimed in claim 4, it is characterised in that: the interim prevention device is at least 2 nothings of equal length
Elastic fusible cable, cable both ends described in every are separately fixed on unlock upper and lower two parts of casing, will unlock casing
Upper and lower two parts are strained and fixed.
6. sampler as claimed in claim 4, it is characterised in that: the interim prevention device by not closed hoop fastener and
Fusible cable is constituted；The not closed hoop fastener passes through annular snap fit for the unlock casing upper and lower two
Part tightens together, and tenses its inc both ends by several fusible cables, is fixedly connected.
7. sampler described in claim 1, it is characterised in that: in the recovery unit, the extension being connect with floating body
Hook mechanism is made of release hook, electronic timing storehouse, watertight socket, cable and fusible cable；The release hook includes fixing
Piece and rotatable lamella, the sampling inner tube top are fixedly connected with electronic timing orlop portion, the electronic timing the top of the warehouse
It is fixedly connected with the fixinig plate bottom；Described rotatable lamella one end is articulated at the top of fixinig plate, and the other end can be with hinge joint
Axis rotation is 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 fixinig plate, the obstruction that rotatable lamella is prevented lever can not rotating opening hook；The electronic timing
Mechanical timer, timing switch circuit, battery, power switch device are set in storehouse, and the timing switch circuit passes through institute
It states watertight socket and watertight cable connects the fusible cable.
8. any one sampler described in claim 1-7, it is characterised in that: the fusible cable is led for nichrome
Line.
9. sampler described in claim 1 is in marine sediment investigation, coastal waters submarine rock and soil engineering investigation, ocean mineral tune
It looks into, GEOCHEMICAL SURVEY, physical prospecting substrate verifying investigation, shore bank engineering, geologic mapping sampling, the sampling in dam siltation investigation field
Application in operation.
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| Application Number | Priority Date | Filing Date | Title |
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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 true CN107063743B (en) | 2019-06-21 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107478459B (en) * | 2017-09-24 | 2019-09-06 | 自然资源部第一海洋研究所 | One kind can throw load-type deep-sea gravity column shaped deposit sampler |
| CN108332986B (en) * | 2018-01-25 | 2020-07-17 | 浙江大学 | Sampling device and method |
| CN108730280A (en) * | 2018-05-30 | 2018-11-02 | 山东省科学院海洋仪器仪表研究所 | A kind of controllable Connection Release device |
| CN109163923B (en) * | 2018-07-05 | 2021-07-13 | 杭州电子科技大学 | Unmanned and cableless deep-sea sediment sampling method |
| CN110488346A (en) * | 2019-08-26 | 2019-11-22 | 青岛海洋地质研究所 | A kind of vertical cable system of marine seismic prospectiong based on fibre optic hydrophone |
| CN112747949B (en) * | 2021-01-14 | 2023-11-07 | 自然资源部第一海洋研究所 | Column-box type integrated sampler suitable for deep sea sediment sampling operation |
| CN113777023A (en) * | 2021-10-08 | 2021-12-10 | 中交华南勘察测绘科技有限公司 | Multi-tube sampler-based mud-water interface acoustic testing device and method |
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