CN212568037U - Deep water visual controllable light sediment column sampling system release mechanism - Google Patents

Abstract

The utility model belongs to acquire the submarine sediment sample field, specifically speaking is a visual controllable light-duty deposit column sampling system release mechanism of deep water, in the sampling process, release mechanism passes through altimeter and looks down the camera and detects the range bottom height, the substrate condition, utilize sampler control communication unit drive release hydro-cylinder to accomplish the release action, utilize the tamping action to accomplish sample work after the release, make full use of kinetic energy and deep sea hydraulic hammer ram double dynamical combination in the process, the process of getting a sample promptly includes two processes of the tamping sample of gravity injection and later stage in earlier stage. The configuration of the hydraulic hammer tamping mechanism enables the sampler to complete the collection work of the ultra-long, continuous and low-disturbance deep sea sediment columnar samples on the premise of not increasing the self weight remarkably. The utility model provides a drawback of blind sampling in the past, improved the technical level of the visual controllable column sample in deep sea effectively.

Description

Deep water visual controllable light sediment column sampling system release mechanism

Technical Field

The utility model belongs to acquire submarine sediment sample field, specifically speaking are visual controllable light-duty deposit column sampling system release mechanism of deep water.

Background

The main devices for obtaining samples of seafloor sediments include column samplers, clamshell samplers, multi-tube samplers, and the like. Compared with the latter two surface sediment samplers, the column sampler can obtain a long column sample of sediment with larger time span and richer information records.

The existing columnar sampler can be divided into a non-controllable type and a controllable type according to an energy supply mode, wherein the former means that the sampler is only penetrated into the submarine sediment by the kinetic energy of the sampler, and the working process is not controlled by a device carrying a platform; the latter means that the sampler is provided with an auxiliary power source and can complete sampling through corresponding operation on a carrying platform. At present, two uncontrollable samplers, namely a valve type gravity sampler and a piston gravity sampler, are mainly configured on a scientific research ship in China, and the sampling depth is generally short. The two samplers are large in size and complex to assemble, and a large amount of human resources are consumed in the whole sampling process, so that the whole operation difficulty is high, and the efficiency is low. Moreover, these devices lack auxiliary power sources, vision and positioning components, and therefore cannot monitor and accurately operate the sampler in real time during sampling, and only perform blind sampling. The controllable sampler mainly relates to a plurality of visible controllable sediment samplers, and mainly uses a reciprocating ramming device for sampling, for example, a deep sea pneumatic reciprocating ramming device with the publication number of CN 103115792A of 5-22.2013, but the device cannot be released; for another example, the open date is 2013, 5, 22 and the open number is CN 103115798A, the device can be released, but the storage mode of the release cable needs to occupy the space of the rammer body, and certain difficulty requirements are imposed on the sealing property of the rammer body.

In summary, the controllable cylindrical sampling system developed at home and abroad does not form a release device under the condition that the hammer body has a simpler structure and is not hollow. In the aspects of the outer layer release of the sampler body and the like, no or few domestic researches and applications are available.

SUMMERY OF THE UTILITY MODEL

The utility model aims to the weak point that exists to current uncontrollable and controllable column sampling system, the utility model aims to provide a visual controllable light-duty deposit column sampling system release mechanism of deep water.

The purpose of the utility model is realized through the following technical scheme:

the utility model discloses a ship communication steel cable, bearing head, swivel, four corners dish swivel, axis of rotation, communication end, upward looking camera, release steel cable, sampler control hammer unit, altimeter, downward looking camera, drain pipe, piston, tool bit, release cylinder, sampler sealed lid, sampler control communication unit, sampler body, sample cell and sampler body mount pad, wherein sampler body, drain pipe, sample cell and tool bit connect gradually, and the threaded connection of this sampler body upper end has sampler sealed lid, install sampler control communication unit and sampler control hammer unit respectively in the sampler body, this sampler body surface installs altimeter and downward looking camera respectively; the top of the sampler sealing cover is respectively provided with a sampler body mounting seat, an upward-looking camera and a plurality of communication ends, and each communication end is respectively connected with the sampler control communication unit; one end of the ship communication steel cable is wound on a winch of the scientific investigation ship, the steel cable at the other end is connected with one end of a bearing head, a communication flexible cable extending out of the bearing head is connected with the sampler control communication unit through a communication end, the other end of the bearing head is hinged with one end of a rotating ring, and the other end of the rotating ring is hinged with a four-corner disc rotating ring; the release oil cylinder is arranged on the mounting seat of the sampler body, the output end of the release oil cylinder is connected with a rotating shaft, and the four-angle disc rotating ring is connected with the mounting seat of the sampler body through the rotating shaft and separated from the mounting seat of the sampler body after the rotating shaft is driven to be drawn out through the release oil cylinder; one end of the release steel cable is connected to the four-angle disc rotating ring, and the other end of the release steel cable penetrates into the drain pipe and is connected with the piston; the upward-looking camera, the altimeter and the downward-looking camera are respectively connected with the sampler control communication unit through communication terminals.

Wherein: and a drain pipe guide pulley block is arranged at the position where the release steel cable penetrates, and a plurality of drain holes for discharging water flow when the piston is lifted upwards are uniformly formed in the drain pipe along the height direction.

And a drain pipe blocking step is arranged in the drain pipe, and the release mechanism prevents the piston from lifting up through the drain pipe blocking step during recovery.

A plurality of guide pulleys are uniformly installed on one side of the outer surface of the sampler body along the height direction, one end of the release steel cable is connected with the four-corner plate rotating ring through a shackle, the other end of the release steel cable is wound around the guide pulleys, and the release steel cable is arc-shaped between every two adjacent guide pulleys.

An upper end head guide pulley block is arranged on the mounting seat of the sampler body, and one end of the release steel cable passes through the space between the upper end head guide pulley block and the mounting seat of the sampler body and is connected with the four-corner disc rotating ring; the upper end head guide pulley block comprises a guide pulley seat, a pulley block shaft and a pulley block fixing bolt, one end of the guide pulley seat is fixed on the sampler body mounting seat, the other end of the guide pulley seat is connected with the pulley block shaft through the pulley block fixing bolt, and a pulley is arranged on the pulley block shaft.

The guide pulley seat comprises a guide pulley seat base and guide pulley seat side plates, the guide pulley seat base is fixedly connected with the sampler body mounting seat, two guide pulley seat side plates are vertically arranged on the guide pulley seat base, and each guide pulley seat side plate is provided with a guide pulley mounting hole; the pulley assembly shaft is a stepped shaft and is divided into a pulley stress shaft, a pulley block outer ring and a pulley block inner ring along the axial direction, the two sides of the pulley block inner ring are respectively provided with a pulley block outer ring with the diameter larger than the pulley block inner ring, the release steel cable slides in the pulley block inner ring and passes through the pulley block outer ring for limitation, the outer side of the pulley block outer ring is the pulley stress shaft, the pulley stress shaft is penetrated through a guide pulley mounting hole in the guide pulley seat side plate and is fixed with the guide pulley seat through a pulley block fixing bolt, and the outer surface of the pulley block outer ring is abutted to the inner surface of the guide pulley seat side plate.

The sampler body mounting seat is characterized in that rotary lifting lugs for recycling are arranged on two sides of the sampler body mounting seat, one end of each rotary lifting lug is rotatably connected with a rotary disc on the sampler body mounting seat, and a rotary lifting hole is formed in the other end of each rotary lifting lug.

And the communication flexible cable is wound in front of the upper part of the sampler body and then connected with the communication end.

The four-corner plate rotating ring is square, four sides are both concave arcs, four corners are fillets, and four-corner plate rotating holes are formed in each corner.

The utility model discloses an advantage does with positive effect:

1. the utility model discloses the mode that the power combination that uses outside gravity release mode and deep sea hydraulic hammer combined together uses the degree of difficulty of its structure significantly reduced deep sea hydraulic hammer preparation of outside gravity release mode, has avoided using original principle and technique, and the hollow watertight work of hydraulic hammer, the processing degree of difficulty is very big, and the cost is high at all, and inner structure complexity is very big, the utility model discloses avoid this kind of things to take place.

2. The utility model discloses compact structure accomplishes controllably and controls in the nearly bottom release in-process of sampler, has solved the drawback of blind release in the past, has improved the operating capability, the operating efficiency and the factor of safety of system.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a side view of the overall structure of the present invention;

FIG. 3 is a schematic structural diagram of the release stage of the present invention;

FIG. 4 is an enlarged view of a portion A of FIG. 1;

FIG. 5 is a schematic structural view of the quarter-turn plate of the present invention;

fig. 6A is a schematic structural view of the pulley assembly shaft of the present invention;

fig. 6B is a schematic structural view of the pulley block fixing bolt of the present invention;

fig. 7A is a schematic perspective view of the pulley block base of the present invention;

fig. 7B is a front view of the structure of the pulley block base of the present invention;

FIG. 7C is a top view of FIG. 7B;

FIG. 7D is a side view of FIG. 7B;

wherein: 1 is a ship communication steel cable, 2 is a bearing head, 3 is a rotating ring, 4 is a quadrangular disc rotating ring, 5 is a quadrangular disc rotating hole, 6 is a rotating lifting lug, 7 is a rotating lifting hole, 8 is a rotating disc, 9 is a rotating shaft, 10 is a shackle, 11 is a communication end, 12 is an upward-looking camera, 13 is an upward-looking camera fixing position, 14 is a release steel cable, 15 is a guide pulley A, 16 is a guide pulley B, 17 is a guide pulley C, 18 is a guide pulley D, 19 is a guide pulley mounting base, 20 is a sampler control hammer body unit, 21 is a height gauge, 22 is a downward-looking camera, 23 is a drain pipe, 24 is a drain hole, 25 is a piston, 26 is a tool bit, 27 is a release oil cylinder, 28 is an upper-end guide pulley block, 29 is a pulley block shaft, 30 is a pulley stress shaft, 31 is an outer pulley block, 32 is an outer ring, 33 is a pulley block inner ring, 34 is a pulley block shaft pin hole, 35 is a pulley block shaft fixing bolt, 36 is a guide pulley seat side plate, 37 is a guide pulley seat base, 38 is a guide pulley block fixing hole, 39 is a guide pulley mounting hole A, 40 is a guide pulley mounting hole B, 41 is a lifting hole A, 42 is a lifting hole B, 43 is a lifting hole C, 44 is a sampler sealing cover, 45 is a sampler control communication unit, 46 is a sampler body, 47 is a sample tube, 48 is a sampler body mounting seat, 49 is a sample tube connecting piece, 50 is a drain pipe guide pulley block, 51 is a drain pipe blocking ladder, and 52 is a communication soft cable.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, fig. 2 and fig. 4, the utility model comprises a ship communication steel cable 1, a bearing head 2, a rotating ring 3, a four-corner plate rotating ring 4, a rotating lifting lug 6, a rotating shaft 9, a communication end 11, an upward-looking camera 12, a releasing steel cable 14, a guide pulley, a sampler control hammer body unit 20, a height gauge 21, a downward-looking camera 22, a drain pipe 23, a piston 25, a tool bit 26, a releasing oil cylinder 27, an upper end guide pulley block 28, a sampler sealing cover 44, a sampler control communication unit 45, a sampler body 46, a sample pipe 47, a sampler body mounting seat 48 and a drain pipe guide pulley block 50, wherein the upper end of the sampler body 46 is in threaded connection with a sampler sealing cover 44, the lower end is in sealed connection with the upper end of the drain pipe 23, the lower end of the drain pipe 23 is in sealed connection with the upper end of the sample pipe 47 through a sample pipe connecting piece 49, and the lower end of the sample pipe 47 is in threaded connection with a cutter head; a sampler control communication unit 45 and a sampler control hammer body unit 20 are respectively arranged in the sampler body 46, and the sampler control communication unit 45 is positioned above the sampler control hammer body unit 20; the sampler control communication unit 45 and the sampler control hammer unit 20 of the present embodiment are both related art, and the sampler control hammer unit 20 may adopt an "energy storage air hammer mechanism" in "a deep sea pneumatic reciprocating ramming device" with publication number CN 103115792a, publication number of 5 month 22 days in 2013.

The top of the sampler sealing cover 44 is respectively provided with a sampler body mounting seat 48, an upward-looking camera fixing position 13 and a plurality of communication ends 11, and the upward-looking camera fixing position 13 is provided with an upward-looking camera 12; each communication terminal 11 is connected to a sampler control communication unit 45. A plurality of guide pulleys are installed on the outer surface of one side of the sampler body 46 from top to bottom according to the rotation angle, and a height gauge 21 and a downward-looking camera 22 are respectively installed on the lower portion of the outer surface of the other side of the sampler body 46.

The one end winding of ship communication steel cable 1 is on scientific investigation ship's winch, and the steel cable of the other end is connected with the one end of bearing head 2, and the communication flexible cable 52 winding that bearing head 2 stretched out is connected with communication end 11 again after sampler body 46's the place ahead, is connected with sampler control communication unit 45 through communication end 11, and the other end of bearing head 2 is articulated with the one end of swivel becket 3 through two swivel becket bolts, and the other end of swivel becket 3 is articulated with four corners dish swivel becket 4 through single swivel becket. The release oil cylinder 27 is installed on the sampler body installation seat 48, the output end is connected with the rotating shaft 9, the four-corner disc rotating ring 4 is connected with the sampler body installation seat 48 through the rotating shaft 9, and the rotating shaft 9 is driven by the release oil cylinder 27 to be drawn out and then separated from the sampler body installation seat 48. One end of the release cable 14 is connected to the quadrangle disc swivel 4, and the other end thereof passes through the drain pipe 23 after passing around each guide pulley in turn, and is connected to a piston 25.

The number of the communication terminals 11 is at least four, and the upward-looking camera 12, the altimeter 21, the downward-looking camera 22 and the communication flexible cable 52 are respectively connected with one communication terminal 11 and are respectively connected with the sampler control communication unit 45 through the communication terminals 11.

As shown in fig. 1, 2, 4 and 5, the four-corner plate rotating ring 4 of the present embodiment is square, four sides are all concave arcs, four corners are rounded corners, and each corner is provided with a four-corner plate rotating hole 5. There is three in four corners carousel rotation hole 5 to be used for connecting as the hole for hoist, and these three hole for hoist is hole for hoist A41, hole for hoist B42 and hole for hoist C43 respectively, and the other end of swivel 3 passes through single rotation bolt and penetrates hole for hoist A41, links to each other with four corners dish swivel 4, and hole for hoist C43 passes through axis of rotation 9 and connects sampler body mount pad 48, and the one end of release steel cable 14 is connected to hole for hoist B42 through two shackles.

The both sides of sampler body mount pad 48 of this embodiment all are equipped with the rotation lug 6 that is used for retrieving, and every side rotates the one end of lug 6 and rotates with the rolling disc 8 on the sampler body mount pad 48 and is connected, and the other end of rotating lug 6 is equipped with rotation lewis hole 7, and both sides rotate and pass through bolted connection between the rotatory lewis hole 7 of lug 6 for retrieve.

The sampler body mounting seat 48 of this embodiment is an upper end surface connecting portion of the sampler body 46, and the upper end head guide pulley block 28 is mounted inside the sampler body mounting seat 48. One end of release cable 14 passes between the upper head guide pulley block 28 and sampler body mounting 48 and is connected to lifting hole B42 on the quarter-turn disc 4 via two shackles 10. As shown in fig. 1, fig. 2, fig. 4, fig. 6A to 6B, and fig. 7A to 7D, the upper head guide pulley block 28 of the present embodiment includes a guide pulley seat, a pulley block shaft 29, and a pulley block fixing bolt 35, one end of the guide pulley seat is fixed on the sampler body mounting seat 48, the other end is connected to the pulley block shaft 29 through the pulley block fixing bolt 35, and a pulley is provided on the pulley block shaft 29. The guide pulley seat of the embodiment comprises a guide pulley seat base 37 and guide pulley seat side plates 36, wherein a guide pulley block fixing hole 38 is formed in the guide pulley seat base 37, the guide pulley seat base 37 is fixedly connected with a sampler body mounting seat 48 through the guide pulley block fixing hole 38 by a bolt, two guide pulley seat side plates 36 are vertically arranged on the guide pulley seat base 37, and each guide pulley seat side plate 36 is provided with two guide pulley mounting holes up and down, namely a guide pulley mounting hole A39 and a guide pulley mounting hole B40, for clamping two guide pulleys; the pulley set shaft 29 is a stepped shaft and is axially divided into a pulley stress shaft 30, a pulley block outer ring 32 and a pulley block inner ring 33, the pulley block inner ring 33 plays a role of a guide pulley, the pulley block outer ring 32 with the diameter larger than that of the pulley block inner ring 33 is arranged on each of two sides of the pulley block inner ring 33, the release steel cable 14 slides in the pulley block inner ring 33 and is limited by the pulley block outer ring 32, and the release steel cable 14 is prevented from exceeding a sliding area; the pulley stressed shaft 30 is arranged on the outer side of the pulley block outer ring 32, the pulley stressed shaft 30 penetrates through a guide pulley mounting hole in a guide pulley seat side plate 36 and is fixed with the guide pulley seat through a pulley block fixing bolt 35, and the outer surface of the pulley block outer ring 32 is abutted to the inner surface of the guide pulley seat side plate 36.

The four guide pulleys of this embodiment are uniformly arranged along the height direction from top to bottom on one side of the outer surface of the sampler body 46, and are respectively guide pulley a15, guide pulley B16, guide pulley C17 and guide pulley D18, and the four guide pulleys are respectively fixed on the sampler body 46 through a guide pulley mounting base 19. One end of the release steel cable 14 is connected with a hoisting hole B42 on the four-corner rotary ring 4 through two shackles 10, the other end is wound by four guide pulleys, and the release steel cable 14 between two adjacent guide pulleys is arc-shaped and can store the release steel cable below 10 m.

The drain pipe 23 of this embodiment is provided with a drain guide pulley block 50 at a position where the release wire rope 14 penetrates, and a plurality of drain holes 24 for draining water flow when the piston 25 is lifted up are uniformly opened in the height direction on the drain pipe 23. The release wire rope 14 passes through the upper head guide pulley block 28, the guide pulley a15, the guide pulley B16, the guide pulley C17, the guide pulley D18, and the drain pipe guide pulley block 50 in this order, passes through the drain pipe 23 and the sample pipe 47, and is connected to the piston 25.

The drain 23 of this embodiment is provided with a drain blocking step 51 inside, and the piston 25 is prevented from lifting up by the drain blocking step 51 when the release mechanism is retracted.

The utility model discloses a release method of visual controllable light-duty deposit column sampling system release mechanism in deep water is: the sampler control communication unit 45 detects the conditions of the sea bottom height and the bottom material through the altimeter 21 and the downward-looking camera 22, controls the release oil cylinder 27 to complete the release action, controls the tamping action of the hammer body unit 20 through the sampler to complete the sampling work after the release, and fully utilizes the kinetic energy and the deep sea hydraulic hammer tamping double-power combination in the process. The method comprises the following specific steps:

step one, the releasing mechanism is assembled before releasing, after the mechanism is put down to the seabed, a shore end control unit (the shore end control unit of the utility model is the prior art) on the scientific investigation ship transmits signals through a ship communication steel cable 1, reaches a sampler control communication unit 45 through a communication flexible cable 52 and a communication end 11, observes the numerical values of an altimeter 21 and a downward-looking camera 22, determines the position and the substrate condition of the data bottom through the altimeter 21 and the downward-looking camera 22, and transmits the signals to the shore end control unit through the sampler control communication unit 45;

step two, according to the preset release height, after the sampler control communication unit 45 receives a release command of the shore end control unit, the release oil cylinder 27 is controlled to be pulled and released, and the rotating shaft 9 between the hoisting hole C43 on the quadrangular disc rotary ring 4 and the sampler body mounting seat 48 is pulled back along with the release oil cylinder 27, so that the quadrangular disc rotary ring 4 is separated from the sampler body mounting seat 48;

thirdly, the sampler body 46, the drain pipe 23, the sample pipe 47 and the tool bit 26 are lowered by gravity after the four-corner disc rotating ring 4 is separated from the mounting seat 48 of the sampler body, the release steel cable 14 sequentially passes through the upper end head guide pulley block 28, the guide pulley A15, the guide pulley B16, the guide pulley C17, the guide pulley D18 and the drain pipe guide pulley block 50 to drive the piston 25 to withdraw, and the tool bit 26 and the sample pipe 47 are sequentially inserted into the submarine sediments; this embodiment releases the wireline 14 in a straightened condition when the cutting head 26 is just above the seafloor sediment, as shown in figure 3;

fourthly, a shore end control unit ramming command transmits a signal through a ship communication steel cable 1 and reaches a sampler control communication unit 45 through a communication flexible cable 52 and a communication end 11, the sampler control communication unit 45 controls a sampler control hammer body unit 20 to hammer a sampler body 46, and meanwhile, the shore end control unit acquires sample introduction length and substrate video condition data through a height meter 21 and a downward-looking camera 22; the sampler controls the hammer unit 20 to ram the sampler body 46 once while the piston 25 is withdrawn once; stopping hammering action after the operation requirement is met;

step five, pulling back the ship communication steel cable 1 by using a winch on the scientific investigation ship to drive the bearing head 2 and the rotating ring 3 to lift upwards, pulling and releasing the steel cable 14 to drive the piston 25 to reach the drainage pipe blocking step 51, and driving the drainage pipe 23, the sampler body 46, the sample pipe 47 and the cutter head 26 to recover through the piston 25;

and step six, after the edge of the scientific investigation ship is recovered, the sampler body 46 is recovered by utilizing the bolts between the rotating lifting holes 7 on the rotating lifting lugs 6 at two sides, so that the operation is completed.

The utility model discloses use the mode that the power combination of outside gravity release mode and deep sea hydraulic hammer combined together, the process of sampling promptly includes two processes of the ramming sample of gravity injection in earlier stage and later stage. The structure of the deep sea hydraulic hammer adopts an external gravity releasing mode, so that the manufacturing difficulty of the deep sea hydraulic hammer is greatly reduced, and the configuration of the hydraulic hammer tamping mechanism enables the sampler to complete the collection work of ultra-long, continuous and low-disturbance deep sea sediment columnar samples on the premise of not obviously increasing the self weight.

Claims (9)

1. A deep water visual controllable light sediment column sampling system release mechanism is characterized in that: comprises a ship communication steel cable (1), a bearing head (2), a rotating ring (3), a four-corner plate rotating ring (4), a rotating shaft (9), a communication end (11), an upward-looking camera (12), a release steel cable (14), a sampler control hammer body unit (20), a height gauge (21), a downward-looking camera (22), a drain pipe (23), a piston (25), a tool bit (26), a release oil cylinder (27), a sampler sealing cover (44), a sampler control communication unit (45), a sampler body (46), a sample tube (47) and a sampler body mounting seat (48), wherein the sampler body (46), the drain pipe (23), the sample tube (47) and the tool bit (26) are sequentially connected, the upper end of the sampler body (46) is in threaded connection with the sampler sealing cover (44), and the sampler control communication unit (45) and the sampler control hammer body unit (20) are respectively mounted inside the sampler body (46), the outer surface of the sampler body (46) is respectively provided with a height gauge (21) and a downward-looking camera (22); the top of the sampler sealing cover (44) is respectively provided with a sampler body mounting seat (48), an upward-looking camera (12) and a plurality of communication ends (11), and each communication end (11) is respectively connected with the sampler control communication unit (45); one end of the ship communication steel cable (1) is wound on a winch of a scientific investigation ship, the steel cable at the other end is connected with one end of the bearing head (2), a communication flexible cable (52) extending out of the bearing head (2) is connected with the sampler control communication unit (45) through a communication end (11), the other end of the bearing head (2) is hinged with one end of the rotating ring (3), and the other end of the rotating ring (3) is hinged with a four-angle disc rotating ring (4); the release oil cylinder (27) is mounted on the sampler body mounting seat (48), the output end of the release oil cylinder is connected with a rotating shaft (9), the four-angle disc rotating ring (4) is connected with the sampler body mounting seat (48) through the rotating shaft (9), and the rotating shaft (9) is separated from the sampler body mounting seat (48) after being driven and drawn out through the release oil cylinder (27); one end of the release steel cable (14) is connected to the four-angle disc rotating ring (4), and the other end of the release steel cable penetrates into the water discharge pipe (23) and is connected with a piston (25); the upward-looking camera (12), the altimeter (21) and the downward-looking camera (22) are respectively connected with the sampler control communication unit (45) through communication end heads (11).

2. The deep water visual controllable light sediment column sampling system release mechanism of claim 1, wherein: a drain pipe guide pulley block (50) is arranged at the position, through which the release steel cable (14) penetrates, on the drain pipe (23), and a plurality of drain holes (24) for draining water flow when the piston (25) is lifted up are uniformly formed in the drain pipe (23) along the height direction.

3. The deep water visual controllable light sediment column sampling system release mechanism of claim 1, wherein: the interior of the drain pipe (23) is provided with a drain pipe blocking step (51), and the piston (25) is prevented from lifting up through the drain pipe blocking step (51) when the release mechanism is recovered.

4. The deep water visual controllable light sediment column sampling system release mechanism of claim 1, wherein: a plurality of guide pulleys are evenly installed along the direction of height on one side of sampler body (46) surface, the one end of release steel cable (14) is passed through shackle (10) and is linked to each other with four corners dish change (4), and the other end is by each guide pulley walks around, between two adjacent guide pulleys release steel cable (14) are the arc.

5. The deep water visual controllable light sediment column sampling system release mechanism of claim 1, wherein: an upper end guide pulley block (28) is arranged on the sampler body mounting seat (48), and one end of the release steel cable (14) passes through the space between the upper end guide pulley block (28) and the sampler body mounting seat (48) and is connected with the four-corner disc rotary ring (4); the upper end head guide pulley block (28) comprises a guide pulley seat, a pulley block shaft (29) and a pulley block fixing bolt (35), one end of the guide pulley seat is fixed on the sampler body mounting seat (48), the other end of the guide pulley seat is connected with the pulley block shaft (29) through the pulley block fixing bolt (35), and a pulley is arranged on the pulley block shaft (29).

6. The deep water visual controllable light sediment column sampling system release mechanism of claim 5, wherein: the guide pulley seat comprises a guide pulley seat base (37) and guide pulley seat side plates (36), the guide pulley seat base (37) is fixedly connected with the sampler body mounting seat (48), two guide pulley seat side plates (36) are vertically arranged on the guide pulley seat base (37), and each guide pulley seat side plate (36) is provided with a guide pulley mounting hole; pulley block axle (29) are the step shaft, divide into pulley atress axle (30), assembly pulley outer ring (32) and assembly pulley inner ring (33) along the axial, and the both sides of this assembly pulley inner ring (33) all are equipped with the assembly pulley outer ring (32) that the diameter is greater than assembly pulley inner ring (33), release steel cable (14) slide in assembly pulley inner ring (33), and pass through assembly pulley outer ring (32) are spacing, and the outside of this assembly pulley outer ring (32) is pulley atress axle (30), pulley atress axle (30) by guide pulley mounting hole on direction pulley seat curb plate (36) passes to it is fixed with the direction pulley seat through assembly pulley fixing bolt (35), the surface butt of assembly pulley outer ring (32) and the internal surface of direction pulley seat curb plate (36).

7. The deep water visual controllable light sediment column sampling system release mechanism of claim 1, wherein: the sampler comprises a sampler body mounting seat (48), wherein rotating lifting lugs (6) for recycling are arranged on two sides of the sampler body mounting seat (48), one end of each rotating lifting lug (6) is rotatably connected with a rotating disc (8) on the sampler body mounting seat (48), and a rotating lifting hole (7) is formed in the other end of each rotating lifting lug (6).

8. The deep water visual controllable light sediment column sampling system release mechanism of claim 1, wherein: the communication flexible cable (52) is wound in front of the upper part of the sampler body (46) and then is connected with the communication end head (11).

9. The deep water visual controllable light sediment column sampling system release mechanism of claim 1, wherein: the four-corner disc rotating ring (4) is square, four sides are both concave arcs, four corners are fillets, and a four-corner disc rotating hole (5) is formed in each corner.

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