Deep sea macro organism sampler

Abstract

The utility model discloses a deep sea macro organism sampler which comprises a base, a suction pipe, a centrifugal pump, a sampling barrel and a pressure maintaining device, the centrifugal pump and the sampling barrel are mounted on the base; the pressure maintaining device is arranged on the sampling barrel and is used for maintaining the pressure of the storage cabin in the sampling barrel; the sampling barrel comprises a barrel body, a barrel cover I and a barrel cover II, two ends of the barrel body are opened, and a plurality of storage cabins are mounted in the barrel body; the two ends of the barrel body are hinged to the barrel cover I and the barrel cover II respectively, sealing gaskets are arranged on the inner end face of the barrel cover I and the inner end face of the barrel cover II, and the barrel cover I and the barrel cover II can cover an opening of the barrel body and seal the end of the barrel body through the sealing gaskets. The device is simple in structure, relatively low in cost and convenient to operate, the activity of a collected sample can be ensured, and the macro-organism sampling work can be completed more efficiently by connecting the device to the ROV.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of deep sea organism sampler, concretely relates to a deep sea macroorganism sampler. BACKGROUND

[0002] Deep sea macroorganism (fish and shrimp biologicals with the volume above 5mm) is the important resource of deep sea, and its special physiological structure and habitat environment make it have extremely high scientific research value, but our understanding is still very limited, so it is urgent to obtain a large number of samples for research. At present, the deep sea macroorganism sampler has lower cost and strong development potential, but it still has some deficiencies.

[0003] The hydrothermal area, cold spring area and other energy-rich areas in deep sea are the main habitats of deep sea macroorganism, and the specific area of deep sea needs to be dived by ROV. Now, some problems may exist in the sampling process, such as the sample loss caused by directly using mechanical hand net for fishing, the death of sample caused by directly sucking sample into centrifugal pump, the limited number and type of sampled sample, the complex structure of pressure maintaining equipment, and the death of sample caused by environmental change during sample transfer after recycling ROV. SUMMARY

[0004] In order to solve the above technical problems, the utility model provides a macroorganism sampler which is simple in structure, convenient to operate and can ensure the activity of collected sample.

[0005] The technical scheme adopted by the utility model is: a deep sea macroorganism sampler, comprising a base, a suction pipe, a centrifugal pump, a sampling barrel and a pressure maintainer.

[0006] The centrifugal pump and the sampling barrel are installed on the base; the pressure maintainer is installed on the sampling barrel and is used for pressure maintaining of the storage cabin in the sampling barrel; the sampling barrel comprises a barrel body, a barrel cover I and a barrel cover II, the barrel body is open at both ends, and a plurality of storage cabins are installed in the barrel body; the two ends of the barrel body are hingedly connected with the barrel cover I and the barrel cover II respectively, a sealing gasket is arranged on the inner end face of the barrel cover I and the barrel cover II, and the barrel cover I and the barrel cover II can cover the opening of the barrel body and seal the end of the barrel body through the sealing gasket.

[0007] The storage cabin is of tubular structure, a plurality of sliding grooves are arranged on the end face of the side wall of the storage cabin towards the barrel cover I, and the sliding grooves are arranged along the axis of the storage cabin; a spring channel is arranged on the side face of the storage cabin at each sliding groove respectively, the spring channel is of U-shaped groove structure, and the opening of the U-shaped groove structure faces the center line of the storage cabin; a trigger device and a sliding block are arranged at one end of the spring channel towards the barrel cover I; the trigger device can push the sliding block out of the spring channel, a spring is arranged in the spring channel, one end of the spring is connected with the side wall of the storage cabin, and the other end of the spring is connected with the sliding block.

[0008] One end of the suction pipe is connected to the outlet of the centrifugal pump, and the other end is used to connect the storage cabin towards the end of the bucket cover I; a filter screen is installed on the inner wall of the suction pipe through a filter screen connector, the number of filter screens is consistent with the number of storage cabins, and the sliding block can pull the filter screen connector into the storage cabin.

[0009] Further, one end of the storage cabin close to the bucket cover II is provided with a sealing groove, the groove opening corresponding to the sealing groove is provided with a rubber plug mounting hole on the bucket body, and the rubber plug mounting hole is provided with an on-off switch; the sealing groove is provided with a rubber plug.

[0010] Further, four storage cabins are included, and two storage cabins share one sealing groove.

[0011] Further, four storage cabin side walls are respectively provided with pressure preserver connection holes, and the four storage cabins are respectively communicated with the pressure preserver.

[0012] Further, the trigger device includes a trigger post and a trigger spring; the trigger post is a Z-shaped structure, the middle part of the trigger post is hinged to the two side walls of the spring channel; one end of the trigger post towards the bucket cover II is embedded into the groove on the sliding block; one end of the trigger spring is connected with the bottom plate of the U-shaped groove structure, and the other end is in contact with the inner end of the sliding block; the trigger spring is in a compressed state, and the center line of the trigger spring is arranged along the sliding direction of the sliding block.

[0013] Further, the sliding block is connected with a sliding pin through a connecting rod, the two ends of the sliding pin are respectively arranged in the sliding grooves of the two side plates of the spring channel where the sliding block is located, and the sliding grooves are perpendicular to the axis of the storage cabin.

[0014] Further, one end of the suction pipe connected with the storage cabin is provided with a connecting device, the outer wall of the connecting device is provided with a trigger column, the number of the trigger columns is consistent with the number of the spring channels, the trigger column can contact the trigger post, so that the trigger post exits from the groove of the sliding block; a filter screen is installed on the inner wall of the connecting device through a filter screen connector;

[0015] The spring channel and the trigger column realize the circumferential positioning of the connecting device and the storage cabin; the connecting device is a tubular structure, one end of the connecting device is connected with the suction pipe; a guide groove is arranged on the side wall of the connecting device corresponding to each sliding block, a filter screen connector consistent with the number of the storage cabins is arranged on the inner wall of the connecting device, a plurality of compression springs are arranged between the annular end plate and the filter screen connector adjacent to the annular end plate; the filter screen connector is an annular structure, an annular positioning groove is arranged on the outer side wall of the filter screen connector for positioning the sliding block, press buckles are arranged on the two side walls of the positioning groove corresponding to the sliding block; the filter screen connector is gap-fitted with the connecting device, an annular groove with an arc-shaped cross section is arranged on the outer side wall of the filter screen connector; a filter screen is fixedly installed on the end face of the filter screen connector towards the suction pipe;

[0016] The end of the connecting device connected with the suction pipe is provided with a plurality of compression springs, and the center lines of the compression springs are parallel to the axis of the connecting device; a plurality of spring holes are arranged on the inner wall of the connecting device, and the plurality of spring holes are located on the same section perpendicular to the axis of the connecting device; a positioning spring and a steel ball are arranged in the spring hole, the positioning spring is located between the steel ball and the bottom of the spring hole, and the steel ball can cooperate with the annular groove on the outer side wall of the filter screen connector to realize axial positioning of the filter screen connector.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1. The suction pipe is provided with the filter screen, so that the sample can be sucked into the outer end of the suction pipe after control, thereby effectively reducing the influence of the suction force generated by the centrifugal pump on the sample; and the storage cabin opening is provided with the sealing gasket, so that a closed and stable channel is provided for the sample to enter the storage cabin of the sampling barrel after the suction pipe is connected with the storage cabin, thereby further reducing the influence on the sample and effectively ensuring the activity of the collected sample.

[0019] 2. The suction pipe is provided with the filter screen connector which is the same in number as the storage cabin, so that the sample can be moved into the storage cabin after the filter screen connector is connected with the sliding block, and the operation can be repeated for multiple times to complete the acquisition of multiple samples at multiple positions.

[0020] 3. The barrel cover II is provided, the connecting pipe is docked, the rubber plug of the storage cabin is pulled open, and the sample can be transferred and stored under the conditions of stable pressure and environmental sealing. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural view of the utility model.

[0022] Figure 2 It is a sectional view of the sampling barrel in the front view of the utility model.

[0023] Figure 3 It is a sectional view of the sampling barrel in the top view of the utility model.

[0024] Figure 4 It is a partial enlarged view of the upper sliding device of the storage cabin of the utility model.

[0025] Figure 5 It is a sectional view of the connecting spring channel of the upper sliding device of the storage cabin of the utility model.

[0026] Figure 6 It is a sectional view of the suction pipe of the utility model.

[0027] Figure 7 It is a sectional view of the connecting device of the utility model.

[0028] Figure 8The partial sectional view of the suction pipe and the storage cabin of the utility model.

[0029] Figure 9 The structure diagram of the storage cabin of the utility model.

[0030] Figure 10 The sectional view of the structure during the transfer process of the sampling barrel of the utility model.

[0031] In the figure: sampling barrel 1, suction pipe 2, centrifugal pump 3, pressure maintainer 4, base 5;

[0032] Barrel cover I 1.1, switch 1.2, rubber plug 1.3, barrel cover II 1.4, sealing gasket 1.5, sealing ring 1.6, sliding device 1.7, spring 1.8, spring channel 1.9, storage cabin 1.10, butt joint notch 1.11;

[0033] Trigger post 1.7.1, buckle 1.7.2, trigger spring 1.7.3, connecting rod 1.7.4, sliding block 1.7.5, sliding groove II 1.7.6, sliding groove 1.7.7;

[0034] Handle 2.1, trigger post 2.2, connecting device 2.3, compression spring 2.4, filter screen connector 2.5, filter screen 2.6, pressing buckle 2.5.1, positioning spring 2.5.2, steel ball 2.5.3;

[0035] Water inlet pipe switch 4.1, water inlet pipe 4.2, piston 4.3, ground deep sea environment simulation room 6, connecting pipe 6.1, connecting pipe 6.2. DETAILED DESCRIPTION

[0036] The utility model will be further explained in connection with the drawings below.

[0037] As Figures 1-10 Shown, the utility model includes sampling barrel 1, suction pipe 2, centrifugal pump 3, pressure maintainer 4 and base 5. The centrifugal pump 3, sampling barrel 1 install on base 5. The pressure maintainer 4 installs on sampling barrel 1, and is used for the pressure maintaining of the storage cabin in sampling barrel 1.

[0038] The sampling barrel 1 includes barrel body, barrel cover I 1.1 and barrel cover II 1.4, and the both ends of barrel body are open, and four storage cabins 1.10 are installed in barrel body. The both ends of barrel body are hinged with barrel cover I 1.1 and barrel cover II 1.4 respectively, and the inner end face of barrel cover I 1.1 and barrel cover II 1.4 is equipped with sealing gasket 1.5, and barrel cover I 1.1 and barrel cover II 1.4 can cover the opening of barrel body and seal the end of barrel body through sealing gasket.

[0039] The storage compartment 1.10 is a tubular structure. Two grooves 1.7.7 (the number of grooves 1.7.7 is not limited to two; more than two may be present) are provided on the side wall of the storage compartment 1.10 facing the lid I1.1. The grooves 1.7.7 are arranged along the axis of the storage compartment 1.10. A sealing ring 1.6 is provided on the end of the storage compartment 1.10 facing the lid I1.1 for sealing when connecting the straw 2. Each groove on the side of the storage compartment 1.10 is provided with a spring channel 1.9, which is a U-shaped groove structure with its opening facing the centerline of the storage compartment 1.10. A triggering device and a slider 1.7.5 are provided at one end of the spring channel 1.9 facing the lid I1.1; the triggering device can push the slider out of the spring channel 1.9. A spring 1.8 is provided inside the spring channel 1.9, with one end connected to the side wall of the storage compartment and the other end connected to the slider 1.7.5. The spring 1.8 is in a stretched state.

[0040] The triggering device includes a trigger post 1.7.1 and a trigger spring 1.7.3. The trigger post 1.7.1 has a Z-shaped structure, and its middle part is hinged to the two side walls of the spring channel via a pin. The buckle 1.7.2 of the trigger post 1.7.1 facing the end of the lid II is embedded in the groove on the slider 1.7.5. One end of the trigger spring 1.7.3 is connected to the bottom plate of the U-shaped groove structure, and the other end contacts the inner end of the slider 1.7.5. The slider 1.7.5 is connected to a sliding pin via a connecting rod 1.7.4. The two ends of the sliding pin are respectively placed in the sliding grooves II 1.7.6 of the two side plates of the spring channel where the slider is located. The sliding grooves II 1.7.6 are perpendicular to the axis of the storage compartment 1.10. The trigger spring 1.7.3 is in a compressed state, and the center line of the trigger spring 1.7.3 is set along the sliding direction of the slider 1.7.5.

[0041] One end of the straw 2 is connected to the outlet of the centrifugal pump, and the other end is used to connect to the end of the storage chamber 1.10 facing the lid I. The end of the straw 1 connected to the storage chamber 1.10 is provided with a connecting device 2.3. The outer wall of the connecting device 2.3 is provided with a trigger post 2.2. The trigger post 2.2 can contact the trigger stake 1.7.1, so that the latch 1.7.2 of the trigger stake 1.7.1 is disengaged from the groove of the slider.

[0042] The spring track 1.9 and trigger post 2.2 achieve circumferential positioning of the connecting device 2.3 and the storage compartment 1.10. The connecting device 2.3 includes an inner tube, an annular end plate, and an outer tube arranged coaxially. One end of the inner tube and the outer tube are connected by the annular plate, and the inner tube is located inside the outer tube; the annular end plate is connected to the suction tube.

[0043] The outer tube is provided with a guide slot I corresponding to each slider 1.7.5, and the guide slot I is arranged along the axis of the outer tube. The inner tube and the outer tube are provided with filter screen connectors consistent with the number of storage compartments 1.10. The annular end plate and the filter screen connectors 2.5 adjacent thereto are provided with a plurality of compression springs. The filter screen connector 2.5 is annular in structure, and the outer side wall thereof is provided with an annular positioning slot for positioning the slider 1.7.5. The positioning slot is provided with a pressing buckle 2.5.1 on the side wall corresponding to the slider. The inner wall of the filter screen connector 2.5 is provided with a plurality of spring holes, and the spring holes are located in the same cross section perpendicular to the axis of the connecting device. The spring hole is provided with a positioning spring 2.5.2 and a steel ball 2.5.3, and the positioning spring 2.5.2 is located between the steel ball 2.5.3 and the bottom of the spring hole. The side wall of the inner tube is provided with an annular slot with an arc-shaped cross section, and the steel ball 2.5.3 can cooperate with the annular slot on the inner tube to achieve axial positioning of the filter screen connector 2.5. The end face of the filter screen connector 2.5 facing the suction pipe is connected to the filter screen 2.6 through a plurality of connecting ropes. The side wall of the inner tube is provided with a guide slot II corresponding to each connecting rope, and the guide slot II is arranged along the axis of the inner tube. The filter screen 2.6 is located in the inner tube. The slider 1.7.5 can pull the filter screen connector 2.5 into the storage compartment 1.10. The suction pipe 2 is provided with a handle 2.1.

[0044] The storage compartment 1.10 is provided with a sealing groove near one end of the bucket cover II 1.12, and the bucket body is provided with a rubber plug mounting hole corresponding to the slot opening of the sealing groove. The rubber plug mounting hole is provided with a switch 1.2. The four storage compartments 1.10 are divided into two groups, and each group shares a sealing groove. The sealing groove is provided with a rubber plug 1.3. The side wall of each of the four storage compartments 1.10 is provided with a pressure maintainer connecting hole, and the four storage compartments 1.10 are respectively connected with the pressure maintainer. The rubber plug 1.3 is a rectangular parallelepiped, and the cross-sectional area thereof is greater than the area of the opening of the storage compartment. The switch 1.2 connects the channel, and the rubber plug 1.3 at the bottom of the bucket can be manually pulled in the channel.

[0045] The sampling bucket is connected with a pressure maintainer 4, and the pressure maintainer 4 is provided with a piston 4.3. The piston 4.3 moves inward as the pressure outside the sampling bucket 1 increases. The pressure maintainer 4 is provided with a water inlet pipe 4.2, and the water inlet pipe 4.2 is provided with a water inlet pipe switch 4.1. The water inlet pipe 4.2 is connected with each of the storage compartments 1.10.

[0046] Implementation steps

[0047] The deep-sea macroorganism sampler is installed on the ROV through the base plate 5, the ROV is put into the sea, and the ROV is operated to descend to the target position on the research vessel, the piston 4.3 in the pressure maintainer 4 moves inward due to the increase of water pressure, when the ROV reaches the deep-sea sampling point, the piston 4.3 stops moving and keeps the water pressure inside and outside the sampling barrel 1 the same. The mechanical arm on the ROV is operated to first open the barrel cover I, then holds the handle 2.1 to aim the suction pipe at the target sample to be grabbed, and starts the centrifugal pump 3 to suck the target sample into the suction pipe 2, the sucked sample is caught by the filter screen 2.6 in the pipe, the mechanical arm is continuously operated to aim the pipe opening of the suction pipe 2 at the hatch of the storage cabin 1.10 of the sampling barrel 1, and the pipe opening of the suction pipe 2 is connected with the storage cabin 1.10 of the sampling barrel 1, and the connection is fixed by the sealing ring 1.6.

[0048] When the suction pipe 1 is tightly connected with the hatch, the trigger column 2.2 of the suction pipe 2 will extrude the trigger post 1.7.1, the trigger post 1.7.1 releases the buckle 1.7.2, the sliding block 1.7.5 is popped into the groove of the filter screen connector 2.5 by the trigger spring 1.7.3, after the entire structure of the sliding block 1.7.5 is popped out of the sliding device 1.7, it is released by the sliding groove 1.7.7 and is pulled to the lower end of the sampling barrel 1 by the release spring 1.8, in the process, the sliding block 1.7.5 also drives the connected filter screen connector 2.5 to pass through the valve 2.4, and then is pulled to the lower end of the spring channel 1.9 by the pulling force of the spring 1.8, thus the target sample is sent from the suction pipe 2 to the storage cabin 1.10 through the filter screen 2.6, after the process is completed, the mechanical arm can be operated to repeat the above operation for three times to complete the sampling of multiple samples at multiple positions.

[0049] When the sampling is completed, the piston 4.3 in the pressure maintainer 4 is at the inward end, and the water pressure in the barrel is the same as the water pressure during the deep-sea sampling. When the ROV rises, the water pressure in the barrel is too large to cause the expansion of the cabin wall of the sampling cabin, at this time, the water inlet pipe switch 4.1 of the water inlet pipe 4.2 is opened to fill a little water into the cabin to ensure that the water pressure in the barrel is basically unchanged and the stability of the sampling barrel.

[0050] When the ROV reaches the water surface for recovery, the sampling barrel 1 is connected with the ground deep-sea environment simulation chamber 6, the barrel cover II 1.4 is opened, the pipe opening of the connecting pipe 6.1 is connected with the lower hatch of the storage cabin 1.10, and the rubber plug 6.2 is aligned with the docking slot 1.11 of the sampling barrel to achieve precise docking, then the switch 1.2 is opened, and the rubber plug 1.3 is manually pulled apart for a small distance to open the channel of the storage cabin 1.10 to the ground deep-sea environment simulation chamber 6, after the sample is moved into the ground deep-sea environment simulation chamber 6, the pipe opening of the connecting pipe 6.1 is closed, and the transfer of the sample is completed.

Claims

1. A deep-sea macroorganism sampler comprising a base, a suction pipe, a centrifugal pump, a sampling barrel and a pressure maintainer, characterized in that: the centrifugal pump and the sampling barrel are installed on the base; the pressure maintainer is installed on the sampling barrel and used for maintaining the pressure of the storage cabin in the sampling barrel; the sampling barrel comprises a barrel body, a barrel cover I and a barrel cover II, the barrel body has two open ends, a plurality of storage cabins are installed in the barrel body, the two ends of the barrel body are hingedly connected with the barrel cover I and the barrel cover II respectively, the inner end faces of the barrel cover I and the barrel cover II are provided with sealing pads, the barrel cover I and the barrel cover II can cover the open ends of the barrel body and seal the ends of the barrel body through the sealing pads; the storage cabin has a tubular structure, a plurality of sliding grooves are arranged on the end face of the side wall of the storage cabin towards the barrel cover I, and the sliding grooves are arranged along the axis of the storage cabin; one spring channel is arranged on the side face of the storage cabin corresponding to each sliding groove, the spring channel has a U-shaped groove structure, the opening of the U-shaped groove structure faces the center line of the storage cabin; one end of the spring channel towards the barrel cover I is provided with a trigger device and a sliding block, the trigger device can push the sliding block out of the spring channel, a spring is arranged in the spring channel, one end of the spring is connected with the side wall of the storage cabin, and the other end of the spring is connected with the sliding block; one end of the suction pipe is connected with the outlet of the centrifugal pump, and the other end is used for connecting the end of the storage cabin towards the barrel cover I; a filter screen is arranged on the inner wall of the suction pipe through a filter screen connector, the number of the filter screens is consistent with the number of the storage cabins, and the sliding block can pull the filter screen connector into the storage cabin. The end of the storage cabin close to the barrel cover II is provided with a sealing groove, the barrel body is provided with a rubber plug mounting hole corresponding to the groove opening of the sealing groove, and the rubber plug mounting hole is provided with an on-off switch; the sealing groove is provided with a rubber plug. The storage barrel comprises four storage cabins, and two storage cabins share one sealing groove. The side walls of the four storage cabins are respectively provided with pressure maintainer connecting holes, and the four storage cabins are respectively communicated with the pressure maintainer. The trigger device comprises a trigger post and a trigger spring; the trigger post has a Z-shaped structure, the middle part of the trigger post is hingedly connected with the two side walls of the spring channel; one end of the trigger post towards the barrel cover II is embedded in the groove on the sliding block; one end of the trigger spring is connected with the bottom plate of the U-shaped groove structure, and the other end of the trigger spring is in contact with the inner end of the sliding block; the trigger spring is in a compressed state, and the center line of the trigger spring is arranged along the sliding direction of the sliding block.

2. The deep sea macrobial sampler of claim 1, wherein: The sliding block is connected with a sliding pin through a connecting rod, the two ends of the sliding pin are respectively arranged in the sliding grooves of the two side plates of the spring channel where the sliding block is located, and the sliding grooves are perpendicular to the axis of the storage cabin.

3. The deep sea macrobial sampler of claim 1, wherein: The end of the suction pipe connected with the storage cabin is provided with a connecting device, the outer wall of the connecting device is provided with a trigger column, the number of the trigger columns is consistent with the number of the spring channels, the trigger column can contact the trigger post, so that the trigger post is withdrawn from the groove of the sliding block; a filter screen is arranged on the inner wall of the connecting device through a filter screen connector; 4. The deep sea macrobial sampler of claim 3, wherein: The spring channel and the trigger column realize the circumferential positioning of the connecting device and the storage cabin; the connecting device comprises coaxially arranged inner and outer pipes and a ring-shaped end plate, one end of the inner pipe and the outer pipe is connected through the ring plate, and the inner pipe is located on the inner side of the outer pipe; the ring-shaped end plate is connected with the suction pipe.

5. The deep sea macrobial sampler of claim 1, wherein: ​ 6. The deep sea macrobial sampler of claim 5, wherein: ​ 7. The deep-sea macrobial sampler of claim 6, characterized in that: ​ ​ A guide slot I is arranged on the outer tube corresponding to each slider, a filter screen connector consistent with the number of storage cabins is arranged between the inner tube and the outer tube, a plurality of compression springs are arranged between the annular end plate and the filter screen connector adjacent to the annular end plate; the filter screen connector is annular in structure, an annular positioning slot is arranged on the outer sidewall of the filter screen connector for positioning the slider, a press buckle is arranged on the sidewall of the positioning slot corresponding to the slider; a plurality of spring holes are arranged on the inner wall of the filter screen connector, the spring holes are located on the same section perpendicular to the axis of the connecting device, the section is arranged close to the other end of the connecting device; a positioning spring and a steel ball are arranged in the spring hole, the positioning spring is located between the steel ball and the hole bottom of the spring hole; an annular slot with an arc-shaped section is arranged on the sidewall of the inner tube, the steel ball can cooperate with the annular slot on the inner tube to realize the axial positioning of the filter screen connector; the filter screen is connected to the end face of the filter screen connector facing the suction tube through a plurality of connecting ropes; a guide slot II is arranged on the sidewall of the inner tube corresponding to each connecting rope, and the filter screen is located in the inner tube.

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