CN110333095A - A deep-sea suction type plankton sampler - Google Patents

Abstract

The invention discloses a deep-sea suction type plankton sampler, which is used for sampling plankton at different depths and near hydrothermal vents. Water absorption device composed of stop device and flowmeter, filter collector composed of filter net and collection bottle. The present invention is small in size and light in weight and is suitable for various mountable instruments. It can be placed on the bottom, fixed-point and timing, and quantitative plankton sampling has a high sampling success rate. The structural design of the water-absorbing device can effectively avoid damage to the plankton body during large-flow sampling. Pollution, underwater automatic control or trigger switch start by manipulator and other trigger mechanism.

Description

A deep-sea suction type plankton sampler

technical field

The invention relates to the field of marine biological sampling, in particular to a deep-sea suction type plankton sampler.

Background technique

Deep-sea biological research requires samples of plankton or benthic larvae. Obtaining plankton samples requires filtering a large number of water samples. At present, trawl sampling is mainly used, but trawling sampling can only complete plankton sampling in large areas of water, and is not suitable for fixed-point sampling. In recent years, life science research on deep-sea hydrothermal vents and cold spring vents has become a hot spot. At present, only platforms such as cable-controlled underwater robots and manned submersibles can reach the sampling points, and these platforms cannot carry out large-scale trawling operations. Therefore, current research on deep-sea Studies on plankton and larvae have been relatively slow. Deep-sea life science research urgently needs a plankton sampler that is easy to carry in deep-sea submersibles and filters large volumes of water.

Contents of the invention

In order to solve the above-mentioned problems existing in the prior art, the present invention provides a deep-sea suction type plankton sampler, which can be conveniently mounted on different deep-sea submersible platforms, and can be clamped or dropped into deep-sea hydrothermal vents and cold springs by manipulators. Sampling of plankton or benthic larvae in special habitats such as mouths.

The technical scheme of the present invention is as follows: a deep-sea suction type plankton sampler, including a main body bracket, is characterized in that: a power control unit, a water absorption device and a filter collector are arranged in the main body bracket, and the water absorption device includes The water-absorbing core device, the filter collector includes a flow meter observation tube, a flow meter, a filter net and a collection bottle, the water-absorbing core device is connected with the flow meter observation tube through a pipeline, and a flow meter is arranged in the flow meter observation tube , the bottom of the flowmeter observation tube is provided with a filter net, and the bottom of the filter net is provided with a collection bottle.

The water-absorbing core device includes a water outlet connection cover of the water fetcher; a blade protection shell; an output connection shaft; a centrifugal blade device; a centrifugal blade stopper; a backstop device for preventing biological escape; an oil-filled motor; A pressure-driven control unit and an end cover of the motor protection housing, an oil-filled motor is fixed inside the motor protection housing, the pressure-resistant control unit is arranged below the oil-filled motor, and the oil-filled motor is connected to the output connection shaft, A centrifugal paddle device and a centrifugal paddle block are provided on the output connecting shaft, a motor protection casing end cover is provided below the motor protection casing, and a paddle protection casing is provided above the motor protection casing , the paddle protective shell is provided with a water extractor outlet connection cover, the water extractor outlet connection cover is connected to the pipeline, and the paddle protective shell is provided with a backstop device for preventing biological escape, and the backstop for preventing biological escape The device is axially limited by the centrifugal paddle block.

The main bracket includes a support frame; a protective wall panel; a sampler suspension clamp; an embedded revolving door; a duck tongue buckle; ; The sampler is suspended in the air and fixed clip; Embedded revolving door; Duck tongue buckle;

The support frame includes a T-shaped handle horizontal tube; a T-shaped handle standpipe; a support rod; a reinforcing plate; a connecting column; Connecting the column, the middle part of the bent square ring on the top is provided with a reinforcement plate, the reinforcement plate is provided with a T-shaped handle, and the bottom of the bent square ring is provided with a bottom connection fixing plate.

The power supply control unit includes a latch device moving pin; a latch device fixed block; a spring; a glass ball; an end cover of a power supply cabin; a proximity switch; a watertight connector; The top of the power supply cabin is provided with a power supply cabin end cover, and the end cover of the power supply cabin is provided with a latch device fixing block, the latch device fixing block is provided with a latch device moving pin, and the latch device fixing block is provided There are springs and glass beads, the moving pin of the latch device is provided with an arc-shaped groove, and the glass beads are in contact with the spring and the arc-shaped groove respectively, and a proximity switch is provided below the moving pin of the latch device, so The proximity switch is fixed on the end cover of the power supply cabin. A rechargeable battery is arranged in the power supply cabin. The rechargeable battery is connected to the end cover of the power supply cabin after being clamped by a threaded connecting rod and a fixing plate. A watertight connector is provided on the end cover.

The backstop device for preventing biological escape includes a guide cover; a nylon rope; a cylindrical spring; a swing block; a pressing plate; a stainless steel wire; a connecting rod; A cylindrical spring is provided, and a pressing plate is provided under the cylindrical spring, and the pressing plate is connected with one end of the connecting rod through a stainless steel wire, and the other end of the connecting rod is connected with the swing block through a pin shaft, and the upper part of the swing block is connected by a nylon The cord is connected to the housing.

The end cover of the motor protection housing is provided with a gland, an oil bag and a watertight seat.

The output connection shaft is connected to the motor protection casing through deep groove ball bearings, the output connection shaft is connected to the blade protection casing through ceramic bearings, and an auxiliary screw and a mechanical seal are arranged on the output connection shaft.

The upper end of the flow meter observation tube is provided with a connection cover above the flow calculation unit, and the lower end is provided with a connection cover below the flow calculation unit. The upper end of the connection cover above the flow calculation unit is connected to the pipeline, and the connection cover below the flow calculation unit is The lower end is connected with the upper end of the filter cloth, and the flow meter is suspended under the connecting cover above the flow calculation unit through the fixed top wire of the flow meter.

The collection bottle is connected to the lower end of the filter net clothing through the collection bottle fixed cap, and the collection bottle is provided with a water filtration gland of the collection bottle.

Compared with prior art, the beneficial effect of the present invention is:

1. The present invention integrates sampling, filtering, sample calculation and power supply control into an independent whole that is convenient to carry. It is small in size and light in weight and can be carried in various large underwater instruments. It is easy to operate and convenient for sampling;

2. The present invention can carry out sampling of plankton around large flow of water absorption and filtration, and the flow rate of the sampler can be changed by adjusting the pressure-resistant drive control unit through the serial port assistant, so as to fully sample the sea water around the instrument;

3. The close pin device in the power supply control unit can make the sampler convenient to operate underwater and on land, and the movable pin on it can control the start and stop of the power supply by moving the manipulator up and down underwater, which overcomes the fact that the instrument cannot be used many times underwater Shortcomings. When there is no manipulator on the loaded instrument, the pressure-resistant drive control unit can also be adjusted to timing drive control through the serial port assistant;

4. The backstop device to prevent biological escape can be installed inside the instrument with shaft rotation. Its structural design not only prevents backflow of seawater, but also prevents seawater from entering the device when the water absorption device is not working under the action of the cylindrical spring inside the backstop device. , and the two seals on the outer circle of the backstop device are located in the position of the present invention to effectively prevent the pollution of plankton at the source.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic diagram of the support frame of the present invention.

Fig. 3 is a schematic diagram of the main body bracket of the present invention.

FIG. 4 is a schematic cross-sectional view of a power control unit in the present invention.

Fig. 5 is a perspective view of the water absorbing device of the present invention.

Fig. 6 is a schematic cross-sectional structure diagram of the water absorbing device in Fig. 5 .

Fig. 7 is a schematic cross-sectional structure diagram of the biological backstop prevention device in the water absorbing device in Fig. 6 .

In the figure: 1 support frame; 1-1 T-shaped handle horizontal tube; 1-2 T-shaped handle riser; 1-3 support rod; 1-4 reinforcement plate; 1-5 connection column; 1-6 bottom connection fixed plate ; 1-7 bending square ring; 2 power supply control unit; 2-1 latch device moving pin; 2-2 latch device fixed block; 2-3 spring; 2-4 glass ball; 2-5 power cabin end cover; 2-6 proximity switch; 2-7 watertight connector; 2-8 power cabin; 2-9 rechargeable battery; 2-10 threaded connecting rod; 2-11 fixed plate; ;5 Embedded revolving door; 6 Duck tongue buckle; 7 Inner card slot block; 8 Isolation plate; 14 Connection cover under the flow calculation unit; 15 Filter net; 16 Water absorption core device; 16-1 Water outlet connection cover of water dispenser; 16-2 Blade protection shell; 16-3 Output connection shaft; 16-4 Centrifugal blade device ; 16-5 Centrifugal paddle block; 16-6 Auxiliary screw; 16-7 Backstop device for preventing biological escape; 16-7-1 Guide cover; 16-7-2 Nylon rope; 16-7-3 Cylindrical spring; 16-7-4 swing block; 16-7-5 pressure plate; 16-7-6 stainless steel wire; 16-7-7 connecting rod; 16-7-8 shell; 16-7-9 pin; 16-8 ceramics Bearing; 16-9 mechanical seal; 16-10 deep groove ball bearing; 16-11 oil-filled motor; 16-12 motor protection shell; 16-13 pressure-resistant drive control unit; 16-14 motor protection shell end cover; 16-15 oil bag; 16-16 gland; 16-17 watertight seat; 17 collection bottle fixed cover; 18 collection bottle water filter gland; 19 collection bottle;

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing:

As shown in Figure 1, the suction plankton sampler includes a main body bracket, a power control unit, a water suction device and a filter collector. The main body bracket is a protective wall composed of bending rods and PP boards with light density and high strength. The core of the sampler is powered by a power-driven motor to drive the centrifugal blades to rotate and prevent biological escape backstop device 16-7 and flowmeter 13 water-absorbing devices, filter collectors composed of filter net clothes 15 and collection bottles 19; Combination block, embedded revolving door 5; said water absorbing device and filter collector are set on the protective plate of the main body bracket through the sampler suspension clamp 4.

The power control unit 2 is arranged on the isolation plate 8 on the fixed plate at the bottom of the support bracket to prevent electrochemical isolation between different metal materials, and connects and communicates with the water-absorbing device through the watertight connector 2-7 and the underwater communication cable; The flow calculation unit is connected to the water outlet of the water dispenser through a pipeline 9; the collection bottle 19 is connected to the flow calculation unit through a filter net 15.

The water absorbing device includes an underwater oil-filled motor, a pressure-resistant drive control unit, an output connection shaft, a backstop device 16-7 for preventing biological escape, and a centrifugal blade device for preventing biological damage; the oil-filled motor is fixed in the motor protection shell, The pressure-resistant drive control unit 16-13 is fixed on the rear side of the underwater oil-filled motor 16-11, and controls the start and stop of the oil-filled motor 16-11; the output connection shaft 16-3 is directly connected to the motor shaft through two bearings and a mechanical seal No oil leakage occurs during rotation.

As shown in Fig. 2 and Fig. 3, the main bracket includes a support frame 1 made of rolled rods and a protective wall composed of light-density and high-strength board sockets. The support frame 1 is composed of a T-shaped handle horizontal tube 1-1 and a T-shaped handle standpipe 1-2. The T-shaped handle is arranged on the bent square ring 1-7 through the support rod 1-3 and the reinforcement plate 1-4. The T-shaped handle can be easily grasped by the manipulator, and the reinforcement plate plays the role of stability and connection. The T-shaped handle riser 1-2 can be connected with the support rod 1-3 and the reinforcement plate 1-4 at the same time, and the force-bearing area is enhanced during use. The bending square ring 1-7 at the bottom of the support frame 1 is connected by five parallel vertical rods 1-5, and the connection fixing plate 1-6 at the bottom is in order to bear the weight of the power control unit 2 and the support rod 1-3 at the bottom and the bending The square rings 1-7 are connected, wherein the five parallel columns 1-5 in the support frame 1 not only play the role of skeleton support in the present invention, but also play the role of the connection between the protective wall panels 3 and the embedded revolving door 5 , the arc groove provided on the protective wall board just snaps into the position where the column is located, and each protective wall board is fixed by socketing and cooperating with the protective board combination block 21. In order to enhance the safety during use, the bracing frame 1 adopts integral welding.

As shown in Figure 2 and Figure 3, in order to prevent the present invention from colliding with the cabin body of the power control unit when in use, the length of the right side plate of the protective wall 3 is greater than the height of the power control unit cabin body, in order to make the top of the side plate not suspended in the air The power supply fixing plate 20 is closely matched with the support frame 1. At this time, the hole in the middle of the power supply fixing plate 20 is coaxial with a screw hole on the end cover 2-5 of the power supply cabin body of the power supply control unit 2, and it is fixed by bolts to prevent its use. shake from time to time. Since the materials of the power cabin body 2-8 in the bracket 1 and the power control unit 2 are different, in order to avoid electrochemical reactions in seawater when different metal materials are in contact, an isolation plate 8 is added between the two to connect the fixed plate 1- Two through holes on the 6 are fixed with the power control unit 2 by bolts and an isolation plate 8 . In order to suspend the water absorbing device 16 and the filter collector in the space of the support frame 1, two upper and lower sampler suspension clamps 4 are used to clamp and fix the suspension clamp 4. The suspension clamp 4 is composed of two symmetrical plates at the front and rear. The threaded hole of the support frame is clamped with the support column 1-5, and the two large round holes on it can clamp the water suction device and the filter collector at the same time, and the middle small hole on the sampler suspension clamp 4 can place the power control unit and The underwater communication cable connected to the water absorbing device avoids other redundant fixing methods of the communication cable. When in use, the present invention can limit it to the inside of the support frame 1 to prevent other objects from being hooked, and the two samplers are suspended and fixed The distance between the clamp 4 and the position of the surrounding protective plate can meet the requirement that the inhalation plankton sampler does not interfere when absorbing and filtering water, and the circular arc design of the suspended clamp 4 can effectively avoid damage to other components Space limitation, and make the present invention more compact and reasonable in structural layout. In use, in order to prevent other objects from scratching and colliding with the water absorbing device, an embedded revolving door 5 is set. When the water absorbing device is disassembled, it can be conveniently rotated and opened around the column. In order to make the present invention more compact in the overall structure, different grooves are set on the inside of the embedded revolving door to ensure that no other parts interfere when it is opened and closed. The U-shaped groove on the right side can be Make the lock sleeve buckle of the duck tongue buckle surround the column 5 and be locked in its groove, and the revolving door is closed and locked.

As shown in Figure 4, the power supply control unit 2 includes close to the plug device, the power supply cabin body end cover 2-5, the proximity switch 2-6, the watertight connector 2-7, the power supply cabin body 2-8, the rechargeable battery 2-9, Threaded connecting rod 2-10 and fixed plate 2-11, approach latch device by latch device mobile pin 2-1, latch device fixed block 2-2, spring 2-3 and glass ball 2-4.

The close latch device is used as a switch of the power control unit, and its moving pin 2-1 can move in the hole of the latch device fixing block 2-2 processed by POM material. The POM material has self-lubricating function, and the moving pin 2-1 is in There will be no astringent phenomenon in the hole. The glass ball 2-4 is tightly attached to the surface of the moving pin through the expansion and contraction of the spring 2-3. In order to realize that the pin shaft can stop at a certain position, the cylinder of the moving pin 2-1 Two arc-shaped grooves and tangent surfaces are set on the surface, so that the glass ball can slide smoothly in the two grooves. The proximity latch device is set above the proximity switch, fixed with the end cover 2-5 of the power supply cabin by bolts, and the moving pin 2-1 and the proximity switch 2-6 are coaxially placed. The proximity switch is switched on and off by sensing the distance of the metal object above. When the glass ball slides to the groove below the moving pin 2-1, the power is cut off, and the power is turned on when it moves into the upper groove. , The structural design close to the latch device is convenient for manpower and manipulators to operate on different occasions.

The interior of the power control unit cabin is packaged with a rechargeable battery 2-9 composed of 18,650 rechargeable lithium batteries connected in series and parallel and a low-power power management system. The power supply is clamped by the threaded connecting rod 2-10 and the fixed plate 2-11 and passed through The copper column connection is fixed on the end cover below the end cover 2-5 of the power supply cabin body, and there is a space for passing wires on the upper fixing plate and the end cover of the power supply cabin body, and the line connecting the watertight connector 2-7 to the power supply and the proximity switch is placed . The mating surface of the power supply cabin body 2-8 and the power supply cabin body end cover 2-5 is provided with an O-ring seal to prevent the inside of the power supply control unit from being immersed in water. The inside of the end cover of the power supply cabin is provided with a proximity switch that acts as a start-stop function for the motor. A proximity latch device is installed above the proximity switch. The latch is locked in the groove of the moving rod through a glass ball and a spring. During the process of pressing and pulling out the moving rod Switching on and off the power supply is convenient for manipulators or other trigger mechanisms to operate underwater.

As shown in Figure 5, the water absorption device includes a pipeline 9, a connection cover 10 above the flow calculation unit, a fixed top wire 11 for the flow meter, a flow meter observation tube 12, a flow meter 13, a connection cover 14 below the flow calculation unit, and a filter net 15 , Water-absorbing core device 16, collection bottle fixed cover 17, collection bottle filter water gland 18, collection bottle 19.

The surrounding seawater inhaled by the water-absorbing device through the water-absorbing core device 16 flows through the flow calculation unit through the pipeline 9, and then the seawater is filtered through the filter net 15, and the retained plankton adheres to the inside of the net or is suspended in the collection bottle 19. When the seawater inhaled by the water suction device flows through the flow calculation unit, the blade of the flow meter 13 suspended on the top of the flow calculation unit and connected to the cover 10 rotates under the action of the water flow through the fixed top wire 11 of the flow meter. At this time, the flow meter counts, for To facilitate observation of flowmeter data, a transparent flowmeter observation tube 12 is set to connect the upper connection cover 10 of the flow calculation unit and the lower connection cover 14 of the flow calculation unit. The upper and lower openings of the filter clothing 15 are respectively clamped by the throat clamp and the connection cap 14 below the flow calculation unit and the collection bottle fixed cap 17, and the collection bottle 19 is fixed under the collection bottle fixed cap 17 through screw connection, and the collection bottle above the collection bottle 19 The filter screen in the water filter gland 18 can filter the sea water in the fixed cover 17 of the collection bottle, so as to prevent the sample from spilling when sampling.

As shown in Figure 6, the water-absorbing core device 16 includes a water outlet connection cover 16-1, a blade protection shell 16-2, an output connection shaft 16-3, a centrifugal blade device 16-4, and a centrifugal blade stopper 16 -5, auxiliary screw 16-6, backstop device for preventing biological escape 16-7, ceramic bearing 16-8, mechanical seal 16-9, deep groove ball bearing 16-10, oil-filled motor 16-11, motor protection shell 16-12, pressure-resistant drive control unit 16-13, motor protection shell end cover 16-14, oil bag 16-15, POM gland 16-16, watertight seat 16-17.

The side of the motor protection housing end cover 16-14 is provided with a watertight seat 16-17, which communicates with the power supply through a cable, and the motor protection housing end cover 16-14 is fixed with the motor protection housing 16-12 by a nylon rope; The front end of the shell 16-2 is connected with the motor protection housing 16-12 through bolts, and the rear end is connected with the water outlet connection cover 16-1 of the water dispenser through threads.

The oil-filled motor 16-11 is fixed in the stepped hole of the motor protection shell 16-12 through bolts, and the pressure-resistant drive control unit 16-13 is fixedly connected to its rear end. In order to shorten the overall axial space of the water-absorbing core device 16, the motor shaft It is directly connected with the output connecting shaft 16-3 through the key, and the coaxial rotation is guaranteed by the deep groove ball bearing 16-10 matched in the motor protection casing 16-12 and the ceramic bearing 16-8 on the blade protection casing 16-2 output, and the mechanical seal 16-9 arranged on the output shaft prevents oil leakage. The anti-biological backstop device 16-7 placed at the bottom of the inner hole of the paddle protection shell 16-2 is axially limited by the centrifugal paddle stopper 16-5, and passes through the O-ring and the paddle on the outer surface of the device. The protective shell 16-2 is sealed. In order to prevent the output connecting shaft 16-3 from driving the anti-biological contamination device to rotate 16-7 when rotating, the internal spring and slide block are not in contact with the output connecting shaft. The hexagonal design on the right side of the output connecting shaft It is convenient to drive the auxiliary screw 16-6 and the centrifugal paddle device 16-4 with the matching hole when it rotates conveniently. The inner hole of the paddle protection shell 16-2 is clearance fit, and is compressed and fixed by the water outlet connection cover 16-1 of the water dispenser connected to the rear end of the paddle protection shell. The centrifugal force generated by the rotation of the centrifugal blades drives the objects around the water into the interior of the equipment, and the plankton will not be damaged due to the high-speed rotation of the centrifugal blades. A mechanical flowmeter is installed at the outlet of the water suction device to measure the size of the suction water flow.

In order to make the water-absorbing core device work normally in waters of different depths, the oil in it passes through the oil bag 16-15 arranged on the end cover 16-14 of the motor protection housing to produce pressure on the oil under the compression of the spring and the external seawater. pressure compensation to ensure the balance of internal and external pressure, and the POM gland 16-16 set on the end cover 16-14 of the motor protection shell not only plays the role of fixing the oil bag 16-15, but also plays the role of oil under different pressures. Guiding function when capsule 16-15 expands and contracts up and down. In order to make the overall structure of the water-absorbing core device 16 tend to be light and small, the motor protection housing 16-12 and the motor protection housing end cover 16-14 are fixed and fitted with nylon ropes, and the contact surfaces of the two are sealed by O-rings to prevent oil fluid leaks.

As shown in Figure 7, the backstop device 16-7 for preventing biological escape includes a guide cover 16-7-1, a nylon rope 16-7-2, a cylindrical spring 16-7-3, a swing block 16-7-4, and a pressing plate 16 -7-5, stainless steel wire 16-7-6, connecting rod 16-7-7, shell 16-7-8, pin shaft 16-7-9. The backstop device for preventing biological escape drives the negative pressure generated when the centrifugal paddle device 16-4 rotates through the output shaft, so that the connecting rod mechanism is opened, and the pressure plate 16-7-5 is driven to compress the cylindrical spring 16-7-3. When the motor stops The cylindrical spring 16-7-3 rebounds and compresses the connecting mechanism to close, preventing the mechanism of the biological escape check device from being affected by the rotation of the output connecting shaft 16-3; The water concave surface and the sealing groove, the connecting rod mechanism rotation groove and the end cover fixing groove are arranged above the shell, and the O-ring is arranged in the sealing groove; the nylon rope groove is set at the joint between the guide cover 16-7-1 and the shell 16-7-8, The bottom is provided with a connecting rod mechanism guiding groove and a pressing plate sliding guiding hole.

When the water absorbing device is not working, the swing block 16-7-4 of the backstop device to prevent biological escape drives the connecting rod connected with the swing block 16-7-4 through the cylindrical spring 16-7-3 to squeeze the pressure plate 16-7-5 16-7-7 movement, so that the swinging block is pressed into the U-shaped hole of the shell 16-7-8, and sealed by the O-ring set on the swinging block, in order to simplify the overall structure, the ear handle above the swinging block is set to the shell In the groove of 16-7-8, the nylon rope 16-7-2 connected with the guide cover 16-7-1 by means of the shell 16-7-8 passes through its ear hole, and the movement of the connecting rod 16-7-7 swing down. Among them, the connecting rod 16-7-7 is nested in the groove of the pressure plate 16-7-5 through the stainless steel wire 16-7-6. It is connected with the double ear seat located under the swing block 16-7-4, and moves up and down by pressing the pressure plate 16-7-5 through the cylindrical spring 16-7-3 arranged in the inner hole of the guide cover 16-7-1, and the guide cover The U-shaped groove in the cylinder below the 16-7-1 can limit the movement of the connecting rod 16-7-7 in its groove to prevent the driven swing block 16-7-4 from shifting.

When the present invention is used underwater, because the cylindrical spring 16-7-3 has a certain pre-compression force when the swing block is closed, it will not open when the pressure difference between the inside and outside of the swing block is not large. When the output connecting shaft 16- 3. The negative pressure generated when the centrifugal paddle device 16-4 is driven by rotation will open the swing block 16-7-4 under the action of external water pressure to complete water absorption. In order to open the closed swing block 16-7-4 at the same time when the backstop device is in use, a plurality of identical linkage mechanisms are evenly distributed around the backstop device, and the two O The ring can effectively prevent plankton at different depths from entering the device when the water absorbing device is submerged, polluting the required biological sampling of the water layer.

The invention can be conveniently mounted on different deep-sea submersible platforms, and can be clamped by a manipulator or dropped into special habitats such as deep-sea hydrothermal vents and cold spring vents to perform fixed-point sampling of plankton or benthos larvae. The water absorption capacity is large, and water samples above 4m ³ can be filtered. The filtration time is controllable. Under water, the power supply can be turned on and off through a manipulator or other trigger mechanism, and sampling can also be timed by time. The operation is simple and the sampling is convenient.

Claims (10)

1. A deep-sea suction type plankton sampler, comprising a main body bracket, characterized in that: the main body bracket is provided with a power control unit (2), a water absorption device and a filter collector, and the water absorption device includes a water absorption core device (16), the filter collector includes a flowmeter observation tube (12), a flowmeter (13), a filter net (15) and a collection bottle (19), and the water-absorbing core device (16) passes through the pipeline (9 ) is connected to the flowmeter observation pipe (12), the flowmeter observation pipe (12) is provided with a flowmeter (13), and the bottom of the flowmeter observation pipe (12) is provided with a filter net (15), A collection bottle (19) is provided below the filter net (15). 2. A deep-sea suction type plankton sampler according to claim 1, characterized in that: the water-absorbing core device (16) includes a water outlet connection cover (16-1), a paddle protection shell (16 -2), output connection shaft (16-3), centrifugal paddle device (16-4), centrifugal paddle block (16-5), backstop device for preventing biological escape (16-7), oil-filled motor ( 16-11), motor protection housing (16-12), pressure-resistant drive control unit (16-13) and motor protection housing end cover (16-14), inside the motor protection housing (16-12) An oil-filled motor (16-11) is fixed, the pressure-resistant control unit (16-13) is arranged under the oil-filled motor (16-11), and the oil-filled motor (16-11) is connected to the output connection shaft ( 16-3), the output connection shaft (16-3) is provided with a centrifugal paddle device (16-4) and a centrifugal paddle block (16-5), and the motor protection housing (16- 12) is provided with a motor protection shell end cover (16-14), and above the motor protection shell (16-12) is provided with a blade protection shell (16-2), and the blade protection shell ( 16-2) is provided with a water dispenser outlet connection cover (16-1), the water dispenser outlet connection cover (16-1) is connected to the pipe (9), and the paddle protection shell (16-2) is equipped with There is a backstop device (16-7) for preventing biological escape, and the backstop device (16-7) for preventing biological escape is axially limited by the centrifugal paddle block (16-5). 3. A deep-sea inhalation plankton sampler according to claim 1, characterized in that: the main bracket includes a support frame (1), a protective wall panel (3), and a sampler suspension clamp (4) , embedded revolving door (5), duck tongue buckle (6), inner card slot block (7), isolation plate (8), power supply fixing plate (20) and protective plate combination block (21), the protective wall plate (3), sampler hanging clamp (4), embedded revolving door (5), duck tongue buckle (6), inner card slot block (7), isolation plate (8), power supply fixing plate (20), protection The plate combination block (21) is arranged on the support frame (1). 4. A deep-sea inhalation plankton sampler according to claim 3, characterized in that: the support frame (1) includes a T-shaped handle horizontal tube (1-1), a T-shaped handle standpipe (1- 2), support rod (1-3), reinforcement plate (1-4), connecting column (1-5), bottom connecting fixed plate (1-6) and two bent square rings (1-7), two A number of connecting columns (1-5) are arranged between each bent square ring (1-7), and a reinforcement plate (1-4) is provided in the middle of the bent square ring (1-7) at the top, and the reinforcement The plate (1-4) is provided with a T-shaped handle, and the bottom bending square ring (1-7) is provided with a bottom connection fixing plate (1-6). 5. A deep-sea inhalation plankton sampler according to claim 1, characterized in that: the power control unit (2) includes a plug device moving pin (2-1), a plug device fixed block (2-2 ), springs (2-3), glass bulbs (2-4), power supply compartment cover (2-5), proximity switches (2-6), watertight connectors (2-7), power supply compartment (2 -8), a rechargeable battery (2-9), a threaded connecting rod (2-10) and a fixing plate (2-11), and the power supply cabin body (2-8) is provided with a power supply cabin end cover (2 -5), the end cover (2-5) of the power supply cabin is provided with a latch device fixing block (2-2), and the latch device fixing block (2-2) is provided with a latch device moving pin (2- 1), the fixed block (2-2) of the latch device is provided with a spring (2-3) and glass beads (2-4), and the moving pin (2-1) of the latch device is provided with an arc-shaped groove , the glass beads (2-4) are respectively in contact with the spring (2-3) and the arc-shaped groove, and a proximity switch (2-6) is provided under the moving pin (2-1) of the latch device, The proximity switch (2-6) is fixed on the end cover (2-5) of the power supply cabin, and a rechargeable battery (2-9) is arranged inside the power supply cabin (2-8), and the rechargeable battery (2 -9) After being clamped by the threaded connecting rod (2-10) and the fixed plate (2-11), it is connected to the end cover (2-5) of the power supply cabin, and the end cover (2-5) of the power supply cabin Watertight connectors (2-7) are provided. 6. A deep-sea inhalation plankton sampler according to claim 2, characterized in that: the backstop device (16-7) for preventing biological escape includes a guide cover (16-7-1), a nylon rope ( 16-7-2), cylindrical spring (16-7-3), swing block (16-7-4); pressure plate (16-7-5), stainless steel wire (16-7-6), connecting rod (16 -7-7), shell (16-7-8) and pin shaft (16-7-9), the top of the shell (16-7-8) is provided with a guide cover (16-7-1), the A cylindrical spring (16-7-3) is provided at the center of the guide cover (16-7-1), and a pressure plate (16-7-5) is provided below the cylindrical spring (16-7-3). The pressure plate (16-7-5) is connected to one end of the connecting rod (16-7-7) through a stainless steel wire (16-7-6), and the other end of the connecting rod (16-7-7) is passed through a pin ( 16-7-9) is connected with the swing block (16-7-4), and the upper part of the swing block (16-7-4) is connected with the casing (16-7-8) through a nylon rope (16-7-2) . 7. A deep-sea inhalation plankton sampler according to claim 2, characterized in that: the end cover (16-14) of the motor protection housing is provided with a gland (16-16), an oil bag ( 16-15) and watertight seats (16-17). 8. A deep-sea inhalation plankton sampler according to claim 2, characterized in that: the output connecting shaft (16-3) connects with the motor protection housing (16 -12), the output connection shaft (16-3) is connected with the blade protection shell (16-2) through the ceramic bearing (16-8), and the output connection shaft (16-3) is provided with an auxiliary screw (16 -6) and mechanical seal (16-9). 9. A deep-sea suction type plankton sampler according to claim 1, characterized in that: the upper end of the flow meter observation tube (12) is provided with a connection cover (10) above the flow calculation unit, and the lower end is provided with a flow rate The connection cover (14) below the calculation unit, the upper end of the connection cover (10) above the flow calculation unit is connected to the pipe (9), the lower end of the connection cover (14) below the flow calculation unit is connected to the upper end of the filter cloth (15) The flowmeter (13) is suspended below the connection cover (10) above the flow calculation unit through the flowmeter fixing top wire (11). 10. A deep-sea inhalation plankton sampler according to claim 1, characterized in that: the collection bottle (19) is connected to the lower end of the filter net (15) through the collection bottle fixing cap (17), and the The collecting bottle (19) is provided with a collecting bottle filter gland (18).