CN104729882B - Deep-sea hanging type water sample air-tight sampling instrument - Google Patents

Abstract

The invention discloses a kind of deep-sea hanging type water sample air-tight sampling instrument, it is desirable to provide a kind of deep-sea hanging type water sample air-tight sampling instrument that can conveniently, accurately gather the water sample in the specific range of seabed top.It includes triggering device, settles counterweight, triggers counterweight, several water samplers and the winch being arranged on hull；The triggering device includes the triggering cylinder body being vertically arranged, slidably it is arranged on upper piston body and lower piston body in triggering cylinder body, the first connecting rod of upper and lower piston body is connected, the buoyant device on second connecting rod and setting triggering cylinder body lateral surface being arranged in the middle part of lower piston body lower surface.

Description

Deep sea pendant water sample airtight sampler

technical field

The invention relates to a water collection device, in particular to a deep-sea hanging airtight sampler for water samples.

Background technique

Water sample collection is an important part of water environment scientific research and water environment protection and management. The collection of water samples at different depths is the premise and basis for the smooth development of various research work. The water body in the water area is affected by factors such as material, water flow, and temperature, and there will be a stratification effect. The hydrological, physical, chemical, and biological information of different water layers is different. Collecting and analyzing the differences in water bodies at different layers is a key step in environmental science and marine science. It is widely used in practical fields such as water ecological environment assessment and pollution accident investigation.

Most of the current water collectors are fixed-depth water collectors, that is, the water collectors are lowered into the water layer at a specific depth by ropes, and then the water samples are collected by the water collectors at the depth of the water layer, that is, the current water collectors The fixed-depth water sampling is carried out based on the water surface; in the process of water sampling, it is difficult for the operator to determine the specific seawater depth of each sea area, which makes it inconvenient to operate this type of fixed-depth water sampling device when collecting seabed water samples , it is difficult to accurately collect water samples within a certain distance above the seabed. For example, when it is necessary to collect water samples within a distance of 3 meters, 5 meters or 10 meters above the seabed, it is difficult for the current fixed-depth water sampling device to complete the collection task.

For example, Chinese Patent Publication No. CN202869850U, published on April 10, 2013, is an electric control closed water collection device, in which the bracket is installed on the water collection container, and the linkage shaft can slide up and down and be inserted into the bracket. , the trigger is installed on the linkage shaft or the clamping part of the upper sealing cover, the traction electromagnet can move up and down and is installed on the bracket and is set in cooperation with the trigger to drive the trigger to move upward when moving upward, and the power supply is connected to the traction through the switch circuit The electromagnet, the clamping part of the upper sealing cover is located between the bracket and the water collection container and is installed on the linkage shaft, the upper sealing cover is connected with the upper part of the water collection container and clamped in the clamping part of the upper sealing cover, the lower sealing cover It is connected with the lower part of the water collection container and set in linkage with the upper sealing cover, and the upper and lower sealing covers tend to cover the upper and lower parts of the water collection container respectively. The water sampling device of this application also uses the water surface as a reference to collect water at a fixed depth; it also has the problem of inconvenient operation when collecting seabed water samples, and it is difficult to accurately collect water samples within a certain distance above the seabed.

Contents of the invention

The purpose of the present invention is to overcome the inconvenient operation of the fixed-depth water sampling device in the prior art when collecting seabed water samples, and it is difficult to accurately collect water samples within a specific distance above the seabed, and to provide a convenient and accurate collection method. Deep-sea pendant water sample airtight sampler for water samples within a specified distance above the seabed.

Technical scheme of the present invention is:

A deep-sea suspended water sample airtight sampler, including a trigger device, a sinking counterweight, a trigger counterweight, several water sample collectors and a winch arranged on the hull; the winch includes a vehicle frame arranged on the hull, The reel arranged on the frame can be rotated through the shaft, the traction rope wound on the reel and the driving motor arranged on the hull for driving the reel to rotate;

The triggering device includes a vertically arranged trigger cylinder, an upper piston body and a lower piston body slidably arranged in the trigger cylinder, a first connecting rod connecting the upper and lower piston bodies, and a middle part of the lower end surface of the lower piston body. The second connecting rod and the buoyancy device on the outer side of the trigger cylinder are arranged; the upper end of the trigger cylinder is open, the lower end is closed, and the avoidance through hole provided in the middle of the lower end surface of the trigger cylinder, the lower end of the second connecting rod Extend down and pass through the avoidance through hole; the inner side of the trigger cylinder is provided with an upper limit protrusion and a lower limit protrusion, the upper limit protrusion is located between the upper and lower piston bodies, and the lower limit protrusion Located below the lower piston body, and when the lower piston body is against the lower limit bump, the upper piston body is located in the trigger cylinder above the upper limit bump; when the lower piston body is against the upper limit bump, the upper piston The body is located above the upper end surface of the trigger cylinder; the second connecting rod is provided with a first compression spring between the lower piston body and the lower end of the trigger cylinder, and the trigger counterweight is connected to the second connecting rod through the first connecting rope. The lower ends of the two connecting rods are connected, and when the trigger counterweight is vertically suspended below the trigger cylinder, the trigger counterweight can move the lower piston body downward and lean against the lower limit projection;

The sinking weight is suspended below the trigger cylinder through the second connecting rope; the triggering weight is located below the sinking weight; the buoyancy of the buoyancy device is greater than that of each water sample collector, the triggering device and the triggering weight. The sum of the gravity is less than the sum of the gravity of each water sample collector, trigger device and settlement counterweight;

The gravity of the water sample collector is greater than the buoyancy of the water sample collector, and the water sample collector includes a third connecting rope, a collection tube with both ends closed, guide through holes arranged at both ends of the collection tube, and arranged in the collection tube The sliding shaft rod, the limit ball connected to the collection tube through the fourth connecting rope and the unlocking device arranged on the collecting tube; the length of the fourth connecting rope is less than the length of the third connecting rope; the sliding shaft rod passes through through the guide through holes at both ends of the collection tube, and a first sealing ring is respectively provided between the two guide through holes and the sliding shaft, the middle part of the outer surface of the sliding shaft is provided with an annular bump in the collection tube, and the outer surface of the sliding shaft A water inlet groove extending axially along the sliding shaft is arranged on the top, and the length of the water inlet groove is greater than the length of the guide through hole; a third compression spring is sleeved on the sliding shaft between the annular protrusion and one end of the collection tube , the third compression spring and the water inlet groove are located on opposite sides of the annular protrusion;

The unlocking device includes an unlocking cylinder arranged in the middle of the outer surface of the collection tube and perpendicular to the collection tube, a push piston that can be slidably arranged in the unlock cylinder, an unlocking lever arranged at one end of the push piston, and an unlocking lever arranged at one end of the push piston. The piston rod at the other end, the unlocking gear rod and the collection tube are located on the same side of the pushing piston, the piston rod passes through the end of the unlocking cylinder and is located outside the unlocking cylinder, and the piston rod is sleeved with a device that can be pushed The second compression spring that the piston moves towards the direction of the collection tube; the end of the unlocking lever passes through the side wall of the collection tube and is located in the inner cavity of the collection tube; when the annular protrusion and the third compression spring move to the position of the unlocking lever On the same side, the water inlet tank is located inside the collection tube; one end of the third connecting rope is connected to the trigger cylinder, and the other end is connected to the end of the piston rod.

The deep-sea pendant water sample airtight sampler of this program uses the seabed as a reference to collect water at a fixed depth in the process of collecting water samples, so it can conveniently and accurately collect water samples within a specific distance above the seabed.

As preferably, a first annular stopper and a second annular stopper are provided on the inner side of the unlocking cylinder, the first annular stopper and the unlocking gear rod are located on the same side of the push piston, and the push piston is located between the first ring stopper and the second ring stopper. Between the annular stoppers, an air guide channel is provided in the side wall of the unlocking cylinder, and a port of the air guide channel communicates with the inner cavity of the unlocking cylinder, and the port of the air guide channel and the push piston are located in the second ring. The opposite sides of the block; the other port of the air guide channel communicates with the inner cavity of the collection tube; on the outer side of the unlocking cylinder, a radial through hole is arranged between the collection tube and the first annular block, so that The outer surface of the collection tube is provided with an axial through hole coaxial with the unlocking cylinder, the unlocking gear rod is coaxially arranged with the unlocking cylinder, the unlocking gear rod passes through the axial through hole, and the axial through hole is connected to the unlocking cylinder. A second sealing ring is provided between the unlocking gear rod; a third sealing ring is provided between the piston rod and the unlocking cylinder; when the piston is pushed against the first annular block, the end of the unlocking gear rod extends into the inner side of the end face of the annular projection; when the push piston abuts against the second annular stopper, the end of the unlocking lever is located outside the end face of the annular projection. The structure of this scheme is favorable for the unlocking device to be unlocked smoothly when the water sample collector floats up to the designated position, so that the water sample collector can smoothly collect water samples.

Preferably, the cross-sectional area of the unlocking gear lever is the same as that of the piston rod, and the cross-sectional area of the pushing piston is twice the cross-sectional area of the unlocking gear lever. The structure of this scheme is beneficial to the smooth unlocking of the unlocking device, so that the water sample collector can smoothly collect water samples.

Preferably, a first hanging ring is provided in the middle of the outer surface of the collection tube, and the first hanging ring and the unlocking device are located on opposite sides of the collection tube; one end of the fourth connecting rope is connected to the first hanging ring, and the other end Connect with the limit ball.

As a preference, on the outer side of the trigger cylinder and above the upper limit projection, there is a limit through hole penetrating through the inner side of the trigger cylinder, and the limit through hole extends radially along the trigger cylinder; the inside of the limit through hole An auxiliary limit gear rod is interposed removable, and when the lower piston body abuts on the lower limit protrusion, the upper piston body is located below the auxiliary limit gear rod. The auxiliary limit lever of this scheme is beneficial to the actual operation of the operator.

As a preference, two vertical suspenders evenly distributed around the circumference of the trigger cylinder are provided on the outside of the trigger cylinder, and the two vertical suspenders are respectively connected to the trigger cylinder through connectors, and a vertical suspender is arranged between the upper ends of the two vertical suspenders. There is a connecting push rod connecting two vertical suspending rods, and the middle part of the connecting pushing rod is provided with a suspension ring, and one end of the traction rope is connected with the suspension ring.

Preferably, the buoyancy device is an annular buoyancy block surrounding the trigger cylinder, and the annular buoyancy block is a hollow buoyancy block.

The invention has the beneficial effects of being able to conveniently and accurately collect water samples within a certain distance above the seabed.

Description of drawings

Fig. 1 is a structural schematic diagram of the deep-sea pendant water sample airtight sampler of the present invention.

Fig. 2 is a schematic structural view of the water sample collector in Fig. 1 .

Fig. 3 is a partial enlarged view of A in Fig. 2 .

Fig. 4 is a schematic diagram of the structure of the deep-sea pendant water sample airtight sampler in the water sampling process of the present invention.

Fig. 5 is a schematic structural view of the water sample collector in Fig. 4 during the water collection process.

FIG. 6 is a partial enlarged view of B in FIG. 5 .

detailed description

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

As shown in FIG. 1 , the deep-sea pendant water sample airtight sampler includes a trigger device 1 , a sinking counterweight 4 , a trigger counterweight 112 , four water sample collectors 3 and a winch 5 arranged on the hull. The winch comprises a vehicle frame 51 arranged on the hull, a reel 53 which is rotatably arranged on the vehicle frame by an axle rod 52, a traction rope 54 wound on the reel and a drive which is arranged on the hull for driving the rotation of the reel. motor. The axle rod is rotatably arranged on the vehicle frame through bearings. The shaft is set horizontally. A gear reducer is arranged between the drive motor and the shaft.

The trigger device comprises a vertical trigger cylinder 11, an upper piston body 14 and a lower piston body 16 slidably arranged in the trigger cylinder, and a first connecting rod 12 connecting the upper and lower piston bodies, which is arranged on the lower end surface of the lower piston body. The second connecting rod 19 in the middle and the buoyancy device 111 on the outer surface of the trigger cylinder are set. The upper end of the trigger cylinder is open and the lower end is closed. The escape through hole 110 provided in the middle of the lower end surface of the trigger cylinder. The buoyancy device is an annular buoyancy block surrounding the trigger cylinder. The annular buoyancy block is a hollow buoyancy block. Two vertical suspenders 21 are arranged on the outer side of the trigger cylinder evenly distributed around the circumference of the trigger cylinder, and the two vertical suspenders are respectively connected with the trigger cylinder through connectors. The upper ends of the two vertical suspenders are located above the trigger cylinder. A connecting jack 22 connecting the two vertical suspenders is arranged between the upper ends of the two vertical suspenders, and the middle part of the connecting jack is provided with a suspension ring. One end of the traction rope is connected with the lifting ring. The connecting push rod is parallel to the top surface of the trigger cylinder. The distance between the connecting push rod and the top surface of the trigger cylinder is greater than the distance between the upper limit projection and the lower limit projection.

The second connecting rod is arranged coaxially with the lower piston body. The lower end of the second connecting rod extends downwards and passes through the avoidance through hole. An upper limit projection 13 and a lower limit projection 17 are arranged on the inner side of the trigger cylinder. The upper limit projection is located between the upper and lower piston bodies. The lower limit projection is located below the lower piston body. A limiting through hole penetrating through the inner side of the triggering cylinder is arranged on the outer side of the triggering cylinder and above the upper limit projection. The limiting through hole radially extends along the trigger cylinder, and the limiting through hole is arranged horizontally. Auxiliary limit gear bar 15 is inserted in the limit through hole which can be taken out. When the lower piston body abuts against the lower limit bump, the upper piston body is located in the trigger cylinder above the upper limit bump, and the upper piston body is located below the auxiliary limit lever (as shown in Figure 1); the lower piston body When abutting against the upper limit projection, the upper piston body is located above the upper end surface of the trigger cylinder (as shown in FIG. 4 ). A first compression spring 18 is sheathed on the second connecting rod between the lower piston body and the lower end of the trigger cylinder. The trigger counterweight is connected with the lower end of the second connecting rod by the first connecting rope 113, and when the trigger counterweight is suspended vertically below the trigger cylinder, the trigger counterweight can make the lower piston body move down and abut against On the lower limit bump. The sinking weight is suspended below the trigger cylinder through the second connecting rope 41, one end of the second connecting rope is connected with the sinking weight, and the other end is connected with the bottom surface of the triggering cylinder. The trigger counterweight is located below the settling counterweight, specifically, when the trigger counterweight and the settling counterweight are vertically suspended below the trigger cylinder, the trigger counterweight is located below the settling counterweight, and the trigger counterweight and the settling counterweight The distance between them is greater than the distance between the upper and lower limit bumps.

As shown in Figure 1 and Figure 2, the gravity of the water sample collector is greater than the buoyancy of the water sample collector. The gravity of the water sample collector in this embodiment is greater than twice the buoyancy of the water sample collector. The water sample collector comprises a third connecting rope 31, a collection tube 34 with both ends closed, guide through holes arranged at both ends of the collecting tube, a sliding shaft 312 arranged in the collecting tube, connected to the collecting tube through a fourth connecting rope 33 The limit ball 32, the unlocking device 39 arranged on the collection tube and the second hanging ring 30 arranged on the lower part of the outer side of the trigger cylinder. When the lower piston body abuts against the upper limit projection, the upper piston body is located above the upper end surface of the trigger cylinder, and the distance between the upper piston body and the upper end surface of the trigger cylinder is greater than the diameter of the limit ball. A first hanging ring 311 is provided in the middle of the outer surface of the collecting tube, and the first hanging ring and the unlocking device are located on opposite sides of the collecting tube. One end of the fourth connecting rope is connected with the first hanging ring, and the other end is connected with the limit ball. The length of the fourth connecting rope is less than the length of the third connecting rope. The length of the fourth connecting rope is within 0.5 meters.

The sliding shaft passes through the guide through holes at both ends of the collection tube, and first sealing rings are respectively arranged between the two guide through holes and the sliding shaft. The two guide through holes have the same length. A sealing ring is installed on the inner side of the guiding through hole, and the first sealing ring is arranged in the sealing ring installation groove on the inner side of the guiding through hole. An annular projection 38 is arranged in the middle of the outer surface of the sliding shaft and located in the collecting tube. A water inlet groove 310 extending axially along the sliding shaft is provided on the outer surface of the sliding shaft, and the length of the water inlet groove is greater than the length of the guide through hole. A third compression spring 37 is sheathed on the sliding shaft between the annular projection and one end of the collection tube. The third compression spring and the water inlet groove are located on opposite sides of the annular projection. The distance between the water inlet groove and the annular protrusion is greater than the length of the guiding through hole.

As shown in Figure 2 and Figure 3, the unlocking device includes an unlocking cylinder 313 arranged in the middle of the outer surface of the collection tube and perpendicular to the collection tube, a push piston 315 that can be slidably arranged in the unlock cylinder, and is arranged at one end of the push piston The unlocking lever 318 and the piston rod 314 that are arranged on the other end of the moving piston. The unlock lever is located on the same side of the push piston as the collection cartridge. A first annular stopper 321 and a second annular stopper 322 are arranged on the inner side of the unlocking cylinder. The first annular stop is located on the same side of the push piston as the unlocking lever. The pushing piston is located between the first annular stopper and the second annular stopper. An air guiding channel 323 is arranged in the side wall of the unlocking cylinder. A port of the air guide passage communicates with the inner cavity of the unlocking cylinder, and the port of the air guide passage and the pushing piston are located on opposite sides of the second annular stopper. The other port of the air guide channel communicates with the inner cavity of the collection cylinder. A radial through hole 316 is provided on the outer side of the unlocking cylinder between the collection cylinder and the first annular stopper. An axial through hole coaxial with the unlocking cylinder is provided on the outer surface of the collecting cylinder. The cross-sectional area of the unlocking gear rod is the same as that of the piston rod, and the cross-sectional area of the push piston is twice the cross-sectional area of the unlocking gear rod.

The unlocking gear lever is arranged coaxially with the unlocking cylinder body. The end of the unlocking gear rod passes through the side wall of the collecting tube and is located in the inner cavity of the collecting tube. Specifically, the unlocking gear rod passes through the axial through hole and is located in the inner cavity of the collecting tube. A second sealing ring 317 is provided between the axial through hole and the unlocking lever. A sealing ring is installed on the inner side of the axial through hole, and the second sealing ring is arranged in the sealing ring installation groove on the inner side of the axial through hole. When pushing the piston against the first ring stopper, the end of the unlocking lever extends into the inner side of the end face of the ring bump (as shown in Figure 3); when pushing the piston against the second ring stopper , the end of the unlocking gear lever is located outside the end face of the annular projection (as shown in Figure 5).

The piston rod passes through the end of the unlocking cylinder and is positioned outside the unlocking cylinder. A third sealing ring 319 is provided between the piston rod and the unlocking cylinder. The piston rod is sheathed with a second compression spring 320 that can push the push piston toward the direction of the collection cylinder. The second compression spring can push the piston against the ring stop. One end of the third connecting rope is connected with the trigger cylinder, and the other end is connected with the end of the piston rod; specifically, one end of the third connecting rope is connected with the second hanging ring, and the other end is connected with the end of the piston rod connected.

The buoyancy of the buoyancy device is greater than the sum of the gravity of the four water sample collectors, the trigger device and the trigger counterweight, and smaller than the sum of the gravity of the four water sample collectors, the trigger device and the settlement counterweight. When the water sample collector sinks under its own weight and the third connection 31 rope is stretched straight, the gravity of the water sample collector will overcome the elastic force of the second compression spring, so that the push piston drives the unlocking lever 318 to move upward , until the push piston abuts against the second annular block 322 ; at this time, the end of the unlocking lever 318 is located outside the end surface of the annular protrusion (as shown in Figure 4 and Figure 5 ).

When the annular protrusion and the third compression spring move to the same side of the unlocking gear lever, the water inlet groove is located inside the collecting tube. When the annular protrusion abuts against the end of the collection tube under the action of the third compression spring, the water inlet groove is located outside the collection tube.

The specific working process of the deep sea suspension type water sample airtight sampler of the present invention is as follows:

First, as shown in Figure 1, the limit ball 32 of each water sample collector is put into the trigger cylinder from the upper port of the trigger cylinder; then, the upper piston body is pushed into the trigger cylinder for blocking The limit ball prevents the limit ball from detaching from the upper port of the trigger cylinder; then, inserts the auxiliary limit lever 15 into the limit through hole to stop the upper piston body from moving out;

As shown in Figure 2 and Figure 3, move the annular projection 38 and the third compression spring 37 to the same side of the unlocking lever, and make the annular projection lean against the unlocking lever; at this time, the 310 water inlet tank is located Inside the tube, outside seawater cannot enter the collection tube.

Second, as shown in FIG. 1 , the deep-sea suspension type water sample airtight sampler is hung on the edge of the ship by a winch 5 . After the deep-sea hanging type water sample airtight sampler is hung on the edge of the ship by the traction rope, the auxiliary limit bar 15 is taken out from the limit through hole.

When the traction rope hangs the deep-sea suspended water sample airtight sampler on the edge of the ship, the counterweight is triggered to move the lower piston body down and abut against the lower limit bump; at this time, the upper piston body is positioned at the upper limit bump In the trigger cylinder above the block, it is used to block the limit ball and prevent the limit ball from protruding from the upper port of the trigger cylinder.

Third, place the deep-sea pendant water sample airtight sampler under the designated water area for water sampling; when the deep-sea pendant water sample airtight sampler is lowered in the water area, each water sample collector will pass through the limit ball And the fourth connecting rope is suspended in the water area.

Fourth, as shown in Figure 4, when the deep-sea pendant water sample airtight sampler sinks to the seabed, the trigger counterweight will first contact with the seabed, and then the deep-sea pendant water sample airtight sampler will sink under the action of the subsidence counterweight. Continue to sink until the sinking counterweight sinks to the bottom of the sea; and in this process, the first compression spring 18 will push the upper and lower piston bodies upward until the lower piston body abuts against the upper limit projection 13 .

When the lower piston body is against the upper limit bump, the upper piston body is above the upper end surface of the trigger cylinder, and the distance between the upper piston body and the upper end surface of the trigger cylinder is greater than the diameter of the limit ball; the limit ball It can be released from the upper port of the trigger cylinder body. At this time, each water sample collector sinks under its own weight.

As shown in Figure 5 and Figure 6, when the water sample collector floats down and the third connecting rope 31 is straightened, the gravity of the water sample collector will overcome the elastic force of the second compression spring, so that the push piston drives the unlocking lever 318 Move upwards until the pushing piston abuts against the second annular stopper 322; at this time, the end of the unlocking gear lever 318 is located outside the end face of the annular protrusion, and the third sealing ring 317 is still against the side of the unlocking gear lever .

After the end of the unlocking gear lever is positioned at the outside of the end face of the ring bump, the third compression spring 37 ring bump moves toward the other end of the collection tube, and makes the ring bump lean against the end of the collection tube; in this process The water inlet tank will go through the following state: one end of the water inlet tank 310 is located outside the collection tube, and the other end is located inside the collection tube (as shown in Figure 5); at this time, the external seawater will enter the collection tube through the water inlet tank. When the annular projection abuts against the end of the collection tube, the sliding shaft will cooperate with the second sealing ring again for sealing. So far, the water sample collection has been completed.

As shown in Figure 4, the present invention can control the distance between the collection cylinder and the sea bottom by controlling the length of the second connection rope 41 and the third connection rope 31 of each water sample collector, so as to conveniently and accurately collect the water above the sea bottom. Water samples within a specified distance. For example, if the length of the second connecting rope is 10 meters and the length of the third connecting rope is 5 meters, then the distance between the collection cylinder and the seabed is 5 meters.

Claims (8)

1. a kind of deep-sea hanging type water sample air-tight sampling instrument, it is characterized in that, including triggering device（1）, settle counterweight（4）, triggering Counterweight（112）, several water samplers（3）And it is arranged on the winch on hull（5）；The winch includes being arranged on hull Vehicle frame（51）, by axostylus axostyle（52）It is rotatably provided in the reel on vehicle frame（53）, the pull rope on reel（54） And the motor for driving spool turns is arranged on hull；

The triggering device includes the triggering cylinder body being vertically arranged（11）, slidably it is arranged on the upper piston body in triggering cylinder body （14）And lower piston body（16）, connect the first connecting rod of upper and lower piston body（12）, it is arranged in the middle part of lower piston body lower surface Two connecting rods（19）And it is arranged on the buoyant device on triggering cylinder body lateral surface（111）；The upper end open of the triggering cylinder body, lower end Closing, the lower surface middle part for triggering cylinder body is provided with avoidance through hole（110）, the lower end of the second connecting rod down extends and passes through Avoid through hole；The triggering cylinder body medial surface is provided with upper limit projection（13）And lower limit projection（17）, the upper limit is convex Block is located between upper and lower piston body, and lower limit projection is located at lower piston body lower section, and instantly piston body to be resisted against lower limit convex When on block, upper piston body is located in the triggering cylinder body above upper limit projection；Instantly piston body is resisted against when on upper limit projection, Upper piston body is located at the top of the upper surface of triggering cylinder body；On the second connecting rod, positioned at lower piston body and triggering cylinder body lower end Between be arranged with the first compression spring（18）, the triggering counterweight is by the first connecting rope（113）With the lower end phase of second connecting rod Connection, and when trigger counterweight be suspended on vertically triggering cylinder body lower section when, the triggering counterweight can make lower piston body move down and It is resisted against on lower limit projection；

The sedimentation counterweight passes through the second connecting rope（41）It is suspended on the lower section of triggering cylinder body；The triggering counterweight is matched somebody with somebody positioned at sedimentation The lower section of weight；The buoyancy of the buoyant device is more than the gravity sum of each water sampler, triggering device and triggering counterweight, and small In the gravity sum of each water sampler, triggering device and sedimentation counterweight；

The gravity of the water sampler is more than the buoyancy of water sampler, and the water sampler includes the 3rd connecting rope （31）, the collection tube of closed at both ends（34）, the guide through hole at collection tube two ends is arranged on, it is arranged on the sliding shaft rod in collection tube （312）, by the 4th connecting rope（33）The spacing ball being connected with collection tube（32）And it is arranged on the tripper in collection tube （39）；Length of the length of the 4th connecting rope less than the 3rd connecting rope；The sliding shaft rod is led through collection tube two ends It is respectively equipped with the first sealing ring to through hole, and between two guide through hole and sliding shaft rod, sliding shaft rod lateral surface middle part, positioned at adopting Annular lug is provided with collection cylinder（38）, sliding shaft rod lateral surface is provided with along the axially extending intake chamber of sliding shaft rod（310）, and Length of the length of intake chamber more than guide through hole；Covered on the sliding shaft rod, between annular lug and collection tube one end It is provided with the 3rd compression spring（37）, the 3rd compression spring and intake chamber are located at the opposite sides of annular lug；

The tripper includes being arranged on collection tube lateral surface middle part, and the unblock cylinder body perpendicular with collection tube（313）, can It is slidably arranged in the pushing piston in unblock cylinder body（315）, it is arranged on the unblock lever of pushing piston one end（318）And be arranged on The piston rod of the pushing piston other end（314）, the unblock lever is with collection tube positioned at the same side of pushing piston, the piston Through unblock cylinder ends, positioned at unblock cylinder body outside, the upper cover of piston rod is provided with can make pushing piston toward collection tube side to bar To the second compression spring of passage（320）；The end of lever is unlocked through collection tube side wall, in collection tube inner chamber；Work as institute When the annular lug and the 3rd compression spring stated are moved to the same side of unblock lever, the intake chamber is located at collection tube inner side； One end of 3rd connecting rope is connected with triggering cylinder body, and the other end is connected with the end of piston rod.

2. hanging type water sample air-tight sampling instrument in deep-sea according to claim 1, it is characterized in that, the unblock cylinder body medial surface It is provided with first annular block（321）And second collar stop（322）, first annular block is with unblock lever positioned at pushing piston The same side, pushing piston is located between first annular block and the second collar stop, is provided with and leads in the unblock cylinder side wall Gas passage（323）, the Single port of the air guide channel is connected with unblock inner chamber of cylinder block, and the port of air guide channel is lived with passage Opposite sides of the plug positioned at the second collar stop；The another port of air guide channel and collection tube intracavity inter-connection；The unblock cylinder Radial direction through hole is provided with outside, between collection tube and first annular block（316）, set on the collection tube lateral surface There is the axially extending bore coaxial with unblock cylinder body, the unblock lever is coaxially disposed with unblock cylinder body, and unblock lever is logical through axial direction Hole, the second sealing ring is provided between the axially extending bore and unblock lever（317）；It is provided between the piston rod and unblock cylinder body 3rd sealing ring（319）；

When pushing piston is resisted against on first annular block, the end of unblock lever stretches to the interior of the end face of annular lug Side；When pushing piston is resisted against on the second collar stop, the end of lever is unlocked positioned at the outside of the end face of annular lug.

3. hanging type water sample air-tight sampling instrument in deep-sea according to claim 2, it is characterized in that, the unblock lever it is transversal Area is identical with the cross-sectional area of piston rod, and pushing piston cross-sectional area be unlock lever cross-sectional area twice.

4. hanging type water sample air-tight sampling instrument in deep-sea according to claim 1, it is characterized in that, in the collection tube lateral surface Portion is provided with the first link（311）, and first link is located at the opposite sides of collection tube with tripper；4th connecting rope One end be connected with the first link, the other end is connected with spacing ball.

5. the deep-sea hanging type water sample air-tight sampling instrument according to claim 1 or 2 or 3 or 4, it is characterized in that, the triggering The limiting through hole through triggering cylinder body medial surface, the limiting through hole edge are provided with cylinder body lateral surface, positioned at upper limit projection top Triggering cylinder body is radially extended；What be can be taken off in the limiting through hole is inserted with auxiliary stopper lever, and instantly piston body against When on lower limit projection, the upper piston body is located at auxiliary stopper lever lower section.

6. the deep-sea hanging type water sample air-tight sampling instrument according to claim 1 or 2 or 3 or 4, it is characterized in that, the water sample Collector also includes being arranged on the second link of triggering cylinder body lateral surface bottom（30）, one end and second of the 3rd connecting rope Link is connected, and the other end is connected with the end of piston rod.

7. the deep-sea hanging type water sample air-tight sampling instrument according to claim 1 or 2 or 3 or 4, it is characterized in that, the triggering Cylinder body outside is provided with two around the circumferentially uniform vertical suspension rod of triggering cylinder body, and two vertical suspension rods are respectively by connector and triggering Cylinder body is connected, and the connection push rod of two vertical suspension rods of connection is provided between the upper end of two vertical suspension rods（22）, and connection push rod Middle part is provided with suspension ring, and one end of the pull rope is connected with suspension ring.

8. the deep-sea hanging type water sample air-tight sampling instrument according to claim 1 or 2 or 3 or 4, it is characterized in that, the buoyancy Device is the annular buoyancy block for surrounding triggering cylinder body, and annular buoyancy block is hollow buoyant mass.