CN117882684B - Sampling device and sampling method for benthonic animals in deep water lakes - Google Patents
Sampling device and sampling method for benthonic animals in deep water lakes Download PDFInfo
- Publication number
- CN117882684B CN117882684B CN202410292637.6A CN202410292637A CN117882684B CN 117882684 B CN117882684 B CN 117882684B CN 202410292637 A CN202410292637 A CN 202410292637A CN 117882684 B CN117882684 B CN 117882684B
- Authority
- CN
- China
- Prior art keywords
- main cylinder
- sampling
- sampler
- shaped
- rotating table
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 241001465754 Metazoa Species 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 238000005553 drilling Methods 0.000 claims abstract description 53
- 239000010802 sludge Substances 0.000 claims abstract description 47
- 239000003550 marker Substances 0.000 claims abstract description 31
- 230000008569 process Effects 0.000 claims abstract description 23
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 230000007774 longterm Effects 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 14
- 230000001174 ascending effect Effects 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 239000011229 interlayer Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 238000009991 scouring Methods 0.000 claims description 5
- 238000003384 imaging method Methods 0.000 claims description 4
- 238000003306 harvesting Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a sampling device and a sampling method for benthonic animals in deep water lakes, wherein the sampling device comprises a sampler and a controller, and the sampler comprises a main cylinder body, a jacking fixing mechanism, a mud breaking drilling cylinder mechanism, a mud making flow guiding mechanism, an inner cross frame, a rod-shaped vibrator, a collecting hopper and a suction pump. The sampling method comprises the steps of sample point layout, monitoring sampling and post-sampling treatment. According to the invention, sludge is separated in the sampling process, and the sample is taken out later only by simple sorting; according to the invention, the collected benthonic animals are automatically loaded into the sampler, and simultaneously, the sludge is effectively separated, so that the benthonic animals can be used in deep water lakes with the depth of more than 20 meters, and the benthonic animals are also applicable to shallow water positions; the invention can drill into sludge to a certain depth, namely, the sampling in the longitudinal depth range is realized, and the sampling result is more accurate; the sample point marker can be used for long-term marking of deepwater lake monitoring points, has the functions of auxiliary fixing and limiting the sampler, and realizes long-term monitoring.
Description
Technical Field
The invention belongs to the technical field of lake environment monitoring, and particularly relates to a sampling device and a sampling method for benthonic animals in a deep water lake.
Background
Benthonic animals (zoobenthos) refer to aquatic organisms living in the bottom of water, mostly invertebrates, during part of or all of their life cycle. Benthonic animals play a key role in the circulation of substances and energy in the ecological system of lakes, most benthonic animals are consumers of primary and secondary ecological systems, play a huge regulating function, play a decisive role in maintaining and restoring the stability and integrity of the ecological system of rivers and lakes, and can promote the degradation of organic matters in the ecological system of lakes and promote the self-purification of water bodies. The benthonic animal species are distributed in the lake water environment and are extremely sensitive to the change of the water environment in the ecological system due to factors such as the water temperature, the water depth and the water quality of the water body, so that benthonic animals are often used in water environment monitoring, are important indexes in ecological system health evaluation, and are good indicator organisms for evaluating the health conditions of river and lake ecological systems.
Currently, prior art collection benthonic animals typically use a grapple sampler, such as the Petzen sampler, where the grapple directly picks up the underwater silt, and then washes the silt and sorts it. However, such grapple samplers have limitations; firstly, the sludge collected by the sampler is relatively large, and the cleaning and sorting are not easy to follow; secondly, the grab bucket can only grab surface sludge as a sample, so that the biomass metering unit uses kg/m 2, namely the area is calculated, and the grab bucket is easy to leak, so that the sampling result is inaccurate; thirdly, the grab bucket is only suitable for shallow water sampling, cannot sample deep lakes and is limited by sampling devices, so that the grab bucket is also a main reason for less related research in the field of monitoring of deepwater lake benthonic animals at present, and the establishment of a reliable deepwater lake benthonic animal monitoring and evaluating system is an important ecological protection and pollution control measure, so that the grab bucket has very important practical significance.
Therefore, it is necessary to develop a sampling device and a sampling method for deep water lake benthonic animals, which can solve the problems.
Disclosure of Invention
The first aim of the invention is to provide a sampling device for benthonic animals in deep water lakes.
The second object of the invention is to provide a sampling method of the sampling device for benthonic animals in deep water lakes.
The first object of the invention is realized in such a way that the sampler comprises a sampler and a controller, wherein the sampler comprises a main cylinder body, a jacking fixing mechanism, a mud breaking drilling cylinder mechanism, a mud making flow guiding mechanism, an inner transverse frame, a rod-shaped vibrator, a collecting hopper and a suction pump;
The top of the main cylinder body is closed, the bottom of the main cylinder body is open, the inner side of the main cylinder body is cylindrical, the upper part of the outer side of the main cylinder body is square, the lower part of the main cylinder body is cylindrical, the upper part of the outer side of the main cylinder body is divided into a first upper part and a second upper part from top to bottom, the first upper part and the second upper part are detachably connected, and the jacking and fixing mechanism is vertically upwards arranged at the top of the main cylinder body;
The mud-breaking drilling cylinder mechanism comprises a drilling cylinder, an outer gear ring, a first electric push rod, an E-shaped sliding seat, a first motor, a protective cover and a gear, wherein the drilling cylinder is a cylindrical cylinder and sleeved at the lower part of the outer side of a main cylinder, the bottom cylinder opening of the drilling cylinder is lower than the bottom cylinder opening of the main cylinder, soil breaking teeth are formed in the bottom cylinder opening of the drilling cylinder, the outer gear ring is fixedly arranged at the outer side of the top of the drilling cylinder, the two sides of the main cylinder are respectively provided with the first electric push rod which is vertically downwards, the pushing end of the first electric push rod is respectively fixedly connected with the E-shaped sliding seat, the right side of the E-shaped sliding seat faces the outer wall of the main cylinder, a sliding groove is formed in the outer wall of the main cylinder from top to bottom, the E-shaped sliding seat is in sliding fit with the sliding groove, the first motor is arranged at the upper layer in the E-shaped sliding seat, the gear and the outer edge of the outer gear ring are both positioned at the lower layer in the E-shaped sliding seat, the power output part of the first motor penetrates into the lower layer in the E-shaped sliding seat and is connected with the gear, the gear ring is meshed with the outer gear ring, the protective cover is arranged outside the E-shaped sliding seat and the inner wall of the protective cover and is fixedly connected with the E-shaped sliding seat and the top and the bottom;
The mud-shoveling flow guide mechanism comprises an impeller device and a rotary lifting driving mechanism, wherein the impeller device comprises a connecting seat, wing plates and fan-shaped blades, the number of the wing plates and the number of the fan-shaped blades are at least 4, the tail parts of the wing plates are fixedly connected with the side surfaces of the connecting seat, the head parts of the wing plates are arc-shaped, the wing plates are uniformly distributed around the connecting seat, all the wing plates are hollow and are provided with rotating shafts on the same side, one wing plate is provided with a fan-shaped blade, a rotating shaft body is connected with one straight edge of the fan-shaped blade, the other straight edge of the fan-shaped blade corresponds to the side edge of the adjacent wing plate, the tail shape of the fan-shaped blade is matched with the shape of the side surface of the corresponding connecting seat, the arc edge of the head part of the fan-shaped blade is arc, the head parts of all the fan-shaped blades and the head parts of the wing plates form a circle and correspond to the inner wall of a drill cylinder, the connecting seat is hollow and is provided with a second motor, and the end part of the rotating shaft is connected with the second motor; the rotary lifting driving mechanism is arranged at the axis in the main cylinder, the lower end of the rotary lifting driving mechanism is connected with the center of the connecting seat, and the impeller device is positioned in the drill cylinder below the cylinder opening of the main cylinder;
The inner cross frame is transversely arranged in the main cylinder body, the inner cross frame is provided with a mounting ring, the rod-shaped vibrator is longitudinally arranged and fixedly connected with the mounting ring, a buffer cushion layer is arranged between the rod-shaped vibrator and the mounting ring, the buffer cushion layer can be a rubber buffer pad for buffering vibration transmitted to the inner cross frame, the top of the main cylinder body is fixedly provided with an inverted collecting hopper, the lower end of the rod-shaped vibrator is positioned at the lower part of the main cylinder body, the upper end of the rod-shaped vibrator is positioned in the collecting hopper, the top opening of the collecting hopper is communicated with a suction pump at the top of the main cylinder body, the discharge opening of the suction pump is positioned outside the main cylinder body, the side surface of the lower part in the main cylinder body is provided with a water inlet, and the top opening of the collecting hopper and the water inlet are both provided with filter screens;
The centers of the front and back tops of the main cylinder body are respectively provided with a first rotating table, the left sides of the lower parts of the front and back sides of the main cylinder body are respectively provided with a second rotating table, the right sides of the lower parts of the front and back sides of the main cylinder body are respectively provided with a third rotating table, the thicknesses of the first rotating table, the second rotating table and the third rotating table are different, the first rotating table, the second rotating table and the third rotating table are respectively connected with ropes, and the ropes of the first rotating table, the second rotating table and the third rotating table are staggered; the corresponding rope of the first rotating table is provided with an imaging device which is electrically connected with the monitor;
The controller is respectively and electrically connected with the first electric push rod, the first motor, the second motor, the rod-shaped vibrator 6 and the suction pump 8.
The jacking and fixing mechanism can be an electric push rod; bar-shaped vibrators are well known to those skilled in the art as vibrating devices; the rotary conductive device is an underwater rotary conductive device well known to those skilled in the art, is used in an underwater environment, and is conductive while realizing rotation, such as an underwater rotary conductive device (application number: 2019111486707) disclosed in Chinese patent application, and further such as HRUW 045-100 deep water type waterproof collector rings (conductive slip rings) manufactured by Shenzhen Hongru electronic Co., ltd; the electric components, such as a first electric push rod, a second electric push rod, a first motor, a second motor, a rod-shaped vibrator, a suction pump, a camera device and the like, are waterproof structures so as to meet underwater use requirements, wherein dynamic sealing elements which are well known to those skilled in the art are arranged on the electric push rod, the motor and the like, the camera device uses a waterproof camera, and the camera device is connected with a monitor through a waterproof cable; the controller is control equipment well known to those skilled in the art, such as a PLC controller, and is used for controlling the start and stop of the controlled component, and the controller and the controlled component can be connected through a waterproof cable.
Preferably, the device further comprises three rope winding and unwinding winches, and each of the first rotating table, the second rotating table and the third rotating table corresponds to one rope winding and unwinding winch; for ship sampling, the take-up and pay-off winch may be mounted on a movable suspension frame.
Preferably, an interlayer is arranged in the upper cylinder wall of the main cylinder body 1, and a counterweight material is arranged in the interlayer for enhancing the sedimentation stability of the sampler.
Preferably, the rotary lifting driving mechanism comprises a second electric push rod, a rotary conductive device, an internal thread sleeve and a screw rod, wherein the screw rod is positioned at the axis in the main cylinder body, the second electric push rod is vertically and fixedly arranged at the top in the main cylinder body, the lower end of the second electric push rod is connected with the upper end of the screw rod through the rotary conductive device, the internal thread sleeve is fixedly arranged at the center of the internal transverse frame, the screw rod penetrates through the internal thread sleeve and is in threaded fit with the internal thread sleeve, and the lower end of the screw rod is fixedly connected with the center of the connecting seat; the rotary lifting driving mechanism can enable the impeller device to lift while realizing the rotation of the impeller device.
Preferably, two collecting hoppers are symmetrically arranged, one collecting hopper corresponds to one suction pump, two rod-shaped vibrators are arranged, and one rod-shaped vibrator corresponds to one collecting hopper.
Preferably, the number of the wing plates and the fan-shaped blades is 4.
Preferably, the device also comprises a sample point marker, wherein the sample point marker comprises supporting legs, a panel and a side limiting plate, the supporting legs are fixedly arranged on the side edges of the panel, the lower ends of the supporting legs are inserted into the lake sediment layer, the panel is in a 'king' -shaped structure, and the side limiting plate is arranged on the outer sides of the supporting legs; wherein the landing leg can have barb structure, reinforcing buries the steadiness.
For the sampler, an underwater power device, such as an underwater propeller, which is well known to a person skilled in the art, can be arranged outside the main cylinder body, so that the sampler can actively travel underwater; the rope can be removed in a mode that the underwater robot independently operates, the underwater robot is provided with a hanging frame, the sampler is connected with the hanging frame, and for the occasion that the sampler needs to be inverted, a waterproof motor can be arranged at a proper position of the hanging frame, and the sampler is directly rotated and inverted by the waterproof motor; specifically, the adaptive connecting component can be flexibly selected according to the underwater propeller and the underwater robot in the prior art, which are all conventional technical means in the art for the person skilled in the art; positioning equipment can also be arranged to realize underwater positioning of the sampler so as to accurately reach the sampling position.
The second object of the present invention is achieved by comprising the steps of:
S1, distributing sampling points: a sample point marker is arranged at a sampling point at the bottom of a lake, and a connecting rope and a buoy with an identification function are arranged on the sample point marker to serve as long-term monitoring point position identifications;
s2, monitoring and sampling:
S201, lowering: the sampler is put down by the ropes corresponding to the first rotating table, the ropes of the second rotating table and the third rotating table are kept loose, the sampler reaches one side of the sample point marker, the position of the sample point marker is observed by using the image pickup device, the sampler is sent into the sample point marker from one side of the sample point marker, each rope enters a panel gap, the sampler is placed on the lake bottom surface of the main cylinder body below the panel, the square structure at the upper part of the main cylinder body corresponds to a side limiting plate, the side limiting plate forms a limit on the main cylinder body in the horizontal direction, a jacking fixing mechanism is started, and the jacking fixing mechanism stretches out and props against the panel to fix the sampler;
s202, sampling: starting a first electric push rod and a first motor to enable the drilling cylinder to move downwards into sludge in the rotation process, stopping the first electric push rod and the first motor, starting a rotary lifting driving mechanism, a second motor and a suction pump, enabling fan-shaped blades to rotate downwards for a certain angle to enable an impeller device to be opened and rotate downwards, enabling the sludge in the drilling cylinder to be continuously lifted and loosened by the fan-shaped blades in the rotation and descending process of the impeller device, enabling the impeller device to lift reciprocally and loosen the sludge, enabling a water inlet to feed water, forming ascending water flow in a main cylinder body, then discharging upwards and outwards from the suction pump, and enabling the lifted sludge in the working process of the impeller device to be discharged outwards along with the ascending water flow; in the loosening and discharging processes of the sludge, the rod-shaped vibrator continuously vibrates to further loosen the sludge into particles; then the impeller device moves down to the bottom cylinder mouth of the drilling cylinder, and gradually turns over the fan-shaped blades upwards until the fan-shaped blades are closed, so that sludge and benthonic animals are picked up and left in the drilling cylinder, and the rotary lifting driving mechanism, the second motor and the suction pump are stopped; starting the first electric push rod to enable the drill cylinder to ascend to return to the initial position;
S203, recycling: the lifting fixing mechanism retracts, the sampler is continuously moved out of one side of the sample point marker through the rope corresponding to the first rotating table, the sampler is far away from the water bottom by the recovery rope, then the rope of the second rotating table is lifted up, other ropes are kept loose, the sampler is integrally turned over and toppled over, the top of the sampler is positioned at a lower position, the rope of the third rotating table is lifted up again, the sampler is inverted, and then the ropes of the second rotating table and the third rotating table are lifted up at the same time, and the sampler is lifted up and recovered; in the ascending process of the sampler, the fan-shaped blades rotate inwards to enable the impeller device to be opened, the suction pump and the rod-shaped vibrator are opened, water enters the main cylinder body from the opening gaps of the fan-shaped blades and forms rotational flow in the main cylinder body, and part of sludge is discharged from the suction pump along with the vibration of the rod-shaped vibrator under the scouring and centrifugal actions;
S3, post-harvest treatment: after the sampler leaves water, benthonic organisms and residual impurities are left in the collecting hopper, the first upper part and the second upper part are disassembled, the contents of the collecting hopper are poured out, and the impurities are sorted, so that benthonic animal sampling is completed.
In the sampling process of S202, the rod-shaped vibrator is started, so that the sludge can be vibrated and dispersed.
The drilling depth of the drilling barrel is 5-15 cm.
Preferably, 1-3 sample point markers are further distributed in the range of 2m around each sampling point in the step S1, and the specific distribution position can be flexibly selected according to the field environment.
Preferably, the sludge raised in the working process of the impeller device in the step S202, wherein the maximum outward rotation angle of the fan-shaped blades relative to the screw rod is 90 degrees, and when the fan-shaped blades rotate to 90 degrees, the fan-shaped blades play a large-area stirring function; the fan blade is rotated inward in step S203, wherein the fan blade has a maximum inward rotation angle of 5 DEG with respect to the screw.
Compared with the prior art, the invention has the following technical effects:
1. In the invention, a sampling mode of combining a drilling cylinder with an impeller device is adopted, and in the sampling process of the lake benthonic animals, sludge is lifted, loosened and diffused, and the sludge is discharged by being matched with ascending water flow formed by a suction pump; then the fan-shaped blades of the impeller device are closed to form a closed space, so that leakage is effectively reduced; the sampler is in an inverted shape in the rising recovery process, a small opening opened by the impeller device is utilized, water flow enters the sampler along the surface of the fan-shaped blade and forms rotational flow under the action of the suction pump, and partial sludge is discharged from the suction pump along with the vibration of the rod-shaped vibrator under the scouring and centrifugal actions; according to the invention, sludge is separated in the sampling process, and the sample is taken out later only by simple sorting; the invention can automatically load the collected benthonic animals into the sampler, effectively separate the sludge, can be used in deep water lakes with the depth of more than 20 meters, and is also applicable to shallow water positions;
2. The drilling barrel can drill into sludge to a certain depth, namely, longitudinal depth range sampling is realized, the traditional biomass metering unit kg/m 2 is improved to kg/m 3, and the sampling result is more accurate;
3. The sample point marker can be used for long-term marking of deepwater lake monitoring points, plays a role of an auxiliary fixing and limiting sampler, and realizes long-term monitoring of deepwater lake benthonic animals.
Drawings
FIG. 1 is a schematic diagram of a sampler according to the present invention;
FIG. 2 is a schematic structural view of a mud-breaking drill cylinder mechanism;
FIG. 3 is a schematic view of the internal structure of FIG. 1;
FIG. 4 is a schematic view of a chute;
fig. 5 is a schematic top view of the first, second and third rotary tables on the main cylinder;
FIG. 6 is a schematic top view of the inner cross frame;
FIG. 7 is a schematic top view of an impeller assembly;
FIG. 8 is a perspective view of the impeller apparatus in use with the fan blades open;
FIG. 9 is a schematic diagram of the structure of a spot marker;
FIG. 10 is a schematic top view of a panel;
FIG. 11 is a schematic diagram of the usage status of the sampler and the spot marker;
FIG. 12 is a schematic view of the structure of the sampler in an inverted shape when it is recovered;
In the figure: the device comprises a main cylinder body, a first upper part, a second upper part, a 2-jacking fixing mechanism, a 3-mud breaking drilling cylinder mechanism, a 301-drilling cylinder, a 302-outer gear ring, a 303-first electric push rod, a 304-E-shaped sliding seat, a 305-first motor, a 306-protective cover, a 307-gear, a 4-mud making diversion mechanism, a 401-connecting seat, a 402-wing plate, a 403-fan-shaped blade, a 404-second electric push rod, a 405-rotating conductive device, a 406-inner threaded sleeve, a 407-screw rod, a 5-inner transverse frame, a 6-rod-shaped vibrator, a 7-collecting bucket, an 8-suction pump, a 9-sliding groove, a 10-mounting ring, a 11-water inlet, a 12-first rotating table, a 13-second rotating table, a 14-third rotating table, a 15-rope, a 16-imaging device, a 17-supporting leg, a 18-panel and a 19-side limiting plate.
Detailed Description
The invention is further described below with reference to examples and drawings, but is not limited in any way, and any changes or substitutions based on the teachings of the invention are intended to fall within the scope of the invention.
Example 1
As shown in fig. 1-8, the sampling device for benthonic animals in deep water lakes of the embodiment comprises a sampler and a controller, wherein the sampler comprises a main cylinder body 1, a jacking and fixing mechanism 2, a mud breaking and drilling cylinder mechanism 3, a mud making and guiding mechanism 4, an inner transverse frame 5, a rod-shaped vibrator 6, a collecting hopper 7 and a suction pump 8;
the top of the main cylinder body 1 is closed, the bottom is open, the inner side is cylindrical, the upper part of the outer side is square, the lower part of the outer side is cylindrical, the upper part of the outer side of the main cylinder body 1 is divided into a first upper part 101 and a second upper part 102 from top to bottom, the first upper part 101 and the second upper part 102 are detachably connected, and the jacking and fixing mechanism 2 is vertically upwards arranged at the top of the main cylinder body 1;
The mud-breaking drilling cylinder mechanism 3 comprises a drilling cylinder 301, an outer gear ring 302, a first electric push rod 303, an E-shaped sliding seat 304, a first motor 305, a protective cover 306 and a gear 307, wherein the drilling cylinder 301 is a cylindrical cylinder and sleeved at the lower part of the outer side of the main cylinder 1, the bottom cylinder opening of the drilling cylinder 301 is lower than the bottom cylinder opening of the main cylinder 1, soil breaking teeth are arranged at the bottom cylinder opening of the drilling cylinder 301, the outer gear ring 302 is fixedly arranged at the outer side of the top of the drilling cylinder 301, the two sides of the main cylinder 1 are respectively provided with a first electric push rod 303 which is vertically downward, the pushing ends of the first electric push rods 303 are respectively fixedly connected with the E-shaped sliding seat 304, the right side of the E-shaped sliding seat 304 faces the outer wall of the main cylinder 1, the outer wall of the main cylinder body 1 is provided with a sliding groove 9 from top to bottom, the E-shaped sliding seat 304 is in sliding fit with the sliding groove 9, the first motor 305 is arranged on the upper layer in the E-shaped sliding seat 304, the gear 307 and the outer edge of the outer gear ring 302 are both positioned on the lower layer in the E-shaped sliding seat 304, the power output part of the first motor 305 penetrates into the lower layer in the E-shaped sliding seat 304 and is connected with the gear 307, the gear 307 is meshed with the outer gear ring 302, the protective cover 306 is covered outside the E-shaped sliding seat 304 and the outer gear ring 302, and the inner wall of the protective cover 306 is fixedly connected with the top and the bottom of the E-shaped sliding seat 304;
The mud-making flow guiding mechanism 4 comprises an impeller device and a rotary lifting driving mechanism, the impeller device comprises a connecting seat 401, wing plates 402 and fan-shaped blades 403, the number of the wing plates 402 and the number of the fan-shaped blades 403 are the same, at least 4, the tail parts of the wing plates 402 are fixedly connected with the side surfaces of the connecting seat 401, the heads of the wing plates 402 are arc-shaped, the wing plates 402 are uniformly distributed around the connecting seat 401, all the wing plates 402 are hollow and are provided with rotating shafts on the same side, one wing plate 402 is provided with one fan-shaped blade 403, the shaft body of the rotating shaft is connected with one straight edge of the fan-shaped blade 403, the other straight edge of the fan-shaped blade 403 corresponds to the side edge of the adjacent wing plate 402, the tail shape of the fan-shaped blade 403 is matched with the shape of the side surface of the corresponding connecting seat 401, the arc edge of the head part of the fan-shaped blade 403 is arc, the head parts of all the fan-shaped blades 403 and the head parts of the wing plates 402 form a circle, and correspond to the inner wall of the drill cylinder 301, the connecting seat 401 is hollow and is provided with a second motor, and the end part of the rotating shaft is connected with the second motor; the rotary lifting driving mechanism is arranged at the axis in the main cylinder body 1, the lower end of the rotary lifting driving mechanism is connected with the center of the connecting seat 401, and the impeller device is positioned in the drill cylinder 301 below the cylinder opening of the main cylinder body 1; the number of the wing plates 402 and the number of the fan-shaped blades 403 are 4;
The inner cross frame 5 is transversely arranged in the main cylinder 1, the inner cross frame 5 is provided with a mounting ring 10, the rod-shaped vibrator 6 is longitudinally arranged and fixedly connected with the mounting ring 10, a buffer cushion layer is arranged between the rod-shaped vibrator 6 and the mounting ring 10, the top of the main cylinder 1 is fixedly provided with an inverted collecting hopper 7, the lower end of the rod-shaped vibrator 6 is positioned at the lower part of the main cylinder 1, the upper end of the rod-shaped vibrator is positioned in the collecting hopper 7, the top opening of the collecting hopper 7 is communicated with a suction pump 8 at the top of the main cylinder 1, the discharge opening of the suction pump 8 is positioned outside the main cylinder 1, the side surface of the lower part in the main cylinder 1 is provided with a water inlet 11, and the top opening and the water inlet 11 of the collecting hopper 7 are provided with filter screens;
The centers of the front and back tops of the main cylinder body 1 are respectively provided with a first rotating table 12, the left sides of the front and back lower parts of the main cylinder body 1 are respectively provided with a second rotating table 13, the right sides of the front and back lower parts of the main cylinder body 1 are respectively provided with a third rotating table 14, the thicknesses of the first rotating table 12, the second rotating table 13 and the third rotating table 14 are different, the first rotating table 12, the second rotating table 13 and the third rotating table 14 are respectively connected with ropes 15, and the ropes 15 of the first rotating table 12, the second rotating table 13 and the third rotating table 14 are staggered; the corresponding ropes of the first rotating table 12 are provided with image pick-up devices 16, and the image pick-up devices 16 are electrically connected with a monitor;
the controller is electrically connected with the first electric push rod 303, the first motor 305, the second motor, the rod-shaped vibrator 6 and the suction pump 8 respectively.
Example 2
The deepwater lake benthonic animal sampling device of the embodiment is based on the embodiment 1 and further comprises three rope winding and unwinding winches, wherein the first rotating table 12, the second rotating table 13 and the third rotating table 14 respectively correspond to one rope winding and unwinding winch.
Example 3
The deepwater lake benthonic animal sampling device of the embodiment is based on the embodiment 2, an interlayer is arranged in the upper cylinder wall of the main cylinder body 1, and a counterweight material is arranged in the interlayer.
Example 4
As shown in fig. 3, the deep water lake benthonic animal sampling device of the embodiment is based on embodiment 3, the rotary lifting driving mechanism comprises a second electric push rod 404, a rotary conductive device 405, an internal thread sleeve 406 and a screw 407, the screw 407 is located at the axis in the main cylinder 1, the second electric push rod 404 is vertically and fixedly arranged at the top in the main cylinder 1, the lower end of the second electric push rod 404 is connected with the upper end of the screw 407 through the rotary conductive device 405, the internal thread sleeve 406 is fixedly arranged in the center of the internal cross frame 5, the screw 407 penetrates through the internal thread sleeve 406 and is in threaded fit with the internal thread sleeve 406, and the lower end of the screw 407 is fixedly connected with the center of the connecting seat 401.
Example 5
The deep water lake benthonic animal sampling device of the embodiment is based on embodiment 4, wherein two collecting hoppers 7 are symmetrically arranged, one collecting hopper 7 is corresponding to one suction pump 8, two rod-shaped vibrators 6 are arranged, and one rod-shaped vibrator 6 is corresponding to one collecting hopper 7.
Example 6
As shown in fig. 9-11, the deep water lake benthonic animal sampling device of the embodiment is based on embodiment 5 and further comprises a sample point marker, wherein the sample point marker comprises a supporting leg 17, a panel 18 and a side limiting plate 19, the supporting leg 17 is fixedly arranged on the side edge of the panel 18, the lower end of the supporting leg 17 is inserted into a lake sediment layer, the panel 18 is in a 'king' -shaped structure, and the side limiting plate 19 is arranged on the outer side of the supporting leg 17.
The working principle and working process of the sampling device are as follows: sinking the sampler into water and reaching the water bottom, and orienting the drilling cylinder 301 towards the position to be sampled; the first motor 305 drives the gear 307 to rotate and drives the outer gear ring 302 to rotate, so that the drilling barrel 301 rotates, and in the process of rotating the drilling barrel 301, the first electric push rod 303 drives the mud-breaking drilling barrel mechanism 3 to move downwards as a whole, the drilling barrel 301 moves downwards while rotating, and the drilling barrel 301 is driven to drill into the lake bottom sludge by using the soil-breaking teeth of the drilling barrel 301, namely, sampled sludge and benthonic animals in the sampled sludge enter the drilling barrel 301; the fan-shaped blades 403 of the impeller device are turned downwards to enable the fan-shaped blades 403 to be opened, the impeller device is driven by the rotary lifting driving mechanism to rotate and descend to lift and loosen the sludge in the drilling cylinder 301, the impeller device is lifted up and down to continuously loosen the sludge, meanwhile, the suction pump 8 pumps out the water in the main cylinder 1, water is fed into the main cylinder 1 through the water inlet 11, ascending water flow is formed in the main cylinder 1, and the lifted sludge is discharged along with the ascending water flow; the impeller device returns to the original position (the bottom nozzle of the drilling barrel 301), the fan-shaped blades 403 are turned upwards gradually until the fan-shaped blades 403 are closed, sludge and benthonic animals are lifted and left in the drilling barrel 301, and the first electric push rod 303 drives the drilling barrel 301 to ascend to the original position; lifting the sampler away from the lake bottom, lifting the ropes of the second rotating table 13, keeping the other ropes relaxed, integrally overturning and dumping the sampler, lifting the ropes of the third rotating table 14 again to enable the sampler to be inverted, lifting the ropes of the second rotating table 13 and the third rotating table 14 at the same time, and lifting and recovering the sampler; in the ascending process of the sampler, the fan-shaped blades 403 rotate inwards to enable the impeller device to be opened, after the suction pump 8 and the rod-shaped vibrator 6 are opened, water enters the main cylinder 1 from the opening gap of the fan-shaped blades 403 and forms rotational flow in the main cylinder 1, and the large sludge is changed into fine particles by utilizing the scouring and centrifugal action and matching with the vibration of the rod-shaped vibrator 6, and finally is discharged downwards along with the suction pump 8, so that the sludge is further cleaned; after the sampler is used for lifting water, the first upper part 101 and the second upper part 102 are disassembled, the content of the collecting hopper 7 is poured out, and the residual larger sundries are sorted, so that benthonic animal sampling is completed.
Example 7
The embodiment is a sampling method of the deep-water lake benthonic animal sampling device of embodiment 6, comprising the following steps:
S1, distributing sampling points: a sample point marker is arranged at a sampling point at the bottom of a lake, and a connecting rope and a buoy with an identification function are arranged on the sample point marker to serve as long-term monitoring point position identifications; 3 sample point markers are additionally distributed in the range of 2m around each sampling point;
s2, monitoring and sampling:
s201, lowering: the sampler is lowered through the ropes corresponding to the first rotating table 12, the ropes of the second rotating table 13 and the third rotating table 14 are kept relaxed, the sampler reaches to one side of the sampling point marker, the position of the sampling point marker is observed through the image pickup device 16, the sampler is fed into the sampling point marker from one side of the sampling point marker, the ropes enter a gap of the panel 18, the sampler is placed on the lake bottom surface of the main cylinder 1 below the panel 18, the square structure at the upper part of the main cylinder 1 corresponds to the side limiting plate 19, the side limiting plate 19 limits the main cylinder 1 in the horizontal direction, the jacking fixing mechanism 2 is started, the jacking fixing mechanism 2 stretches out and props against the panel 18, and the sampler is fixed;
S202, sampling: starting a first electric push rod 303 and a first motor 305 to enable the drilling cylinder 301 to move downwards into sludge in the rotation process, stopping the first electric push rod 303 and the first motor 305, starting a rotary lifting driving mechanism, a second motor and a suction pump 8, enabling fan-shaped blades 403 to rotate downwards for a certain angle to enable an impeller device to be opened and rotated downwards, enabling the fan-shaped blades 403 to continuously dip and loosen the sludge in the drilling cylinder 301 in the rotation and descending process of the impeller device, enabling the impeller device to lift reciprocally and loosen the sludge, enabling a water inlet 11 to enter water, forming ascending water flow in a main cylinder 1, then discharging upwards from the suction pump 8, and enabling the sludge lifted in the working process of the impeller device to be discharged outwards along with the ascending water flow; the fan blades 403 have a maximum outward rotation angle of 90 ° with respect to the screw 407; in the loosening and discharging process of the sludge, the rod-shaped vibrator 6 continuously vibrates to further loosen the sludge into particles; then the impeller device moves down to the bottom cylinder opening of the drilling cylinder 301, and gradually turns over the fan-shaped blades 403 upwards until the fan-shaped blades 403 are closed, so that sludge and benthonic animals are lifted and left in the drilling cylinder 301, and the rotary lifting driving mechanism, the second motor and the suction pump 8 are stopped; starting the first electric push rod 303 to enable the drill cylinder 301 to ascend back to the initial position;
s203, recycling: the lifting fixing mechanism 2 is retracted, the sampler is continuously moved out of one side of the sample point marker through the rope corresponding to the first rotating table 12, the sampler is far away from the water bottom by recovering the rope, then the rope of the second rotating table 13 is lifted up, other ropes are kept loose, the sampler is integrally turned over and toppled over, the top of the sampler is positioned at a lower position, the rope of the third rotating table 14 is lifted up again, the sampler is inverted (shown in fig. 12), and then the ropes of the second rotating table 13 and the third rotating table 14 are lifted up at the same time, and the sampler is lifted up and recovered; during the ascending process of the sampler, the fan-shaped blades 403 rotate inwards to open the impeller device, the fan-shaped blades 403 rotate inwards by 5 degrees relative to the screw 407, the suction pump 8 and the rod-shaped vibrator 6 are opened, water enters the main cylinder 1 from the opening gap of the fan-shaped blades 403 and forms rotational flow in the main cylinder 1, and under the scouring and centrifugal actions, the rod-shaped vibrator 6 vibrates to discharge part of sludge from the suction pump 8;
s3, post-harvest treatment: after the sampler leaves the water, benthos and residual impurities are left in the collecting hopper 7, the first upper part 101 and the second upper part 102 are disassembled, the content of the collecting hopper 7 is poured out, and the impurities are sorted, so that benthonic animal sampling is completed.
Claims (10)
1. The sampling device for the benthonic animals in the deep water lakes comprises a sampler and a controller and is characterized in that the sampler comprises a main cylinder body (1), a jacking fixing mechanism (2), a mud breaking drilling cylinder mechanism (3), a mud making flow guiding mechanism (4), an inner transverse frame (5), a rod-shaped vibrator (6), a collecting hopper (7) and a suction pump (8);
The top of the main cylinder body (1) is closed, the bottom is open, the inner side is cylindrical, the upper part of the outer side is square, the lower part of the outer side is cylindrical, the upper part of the outer side of the main cylinder body (1) is divided into a first upper part (101) and a second upper part (102) from top to bottom, the first upper part (101) and the second upper part (102) are detachably connected, and the jacking and fixing mechanism (2) is vertically arranged on the top of the main cylinder body (1) upwards;
the mud-breaking drilling cylinder mechanism (3) comprises a drilling cylinder (301), an outer gear ring (302), a first electric push rod (303), an E-shaped sliding seat (304), a first motor (305), a protective cover (306) and a gear (307), wherein the drilling cylinder (301) is a cylindrical cylinder and sleeved on the lower outer side of the main cylinder (1), the bottom cylinder opening of the drilling cylinder (301) is lower than that of the main cylinder (1), earth breaking teeth are arranged on the bottom cylinder opening of the drilling cylinder (301), the outer gear ring (302) is fixedly arranged on the outer side of the top of the drilling cylinder (301), the first electric push rod (303) is respectively arranged on two sides of the main cylinder (1), the pushing ends of the first electric push rod (303) are respectively fixedly connected with the E-shaped sliding seat (304), the right side of the E-shaped sliding seat (304) faces the outer wall of the main cylinder (1), a sliding groove (9) is formed in the outer wall of the main cylinder (1) from top down, the E-shaped sliding seat (304) is in sliding fit with the sliding groove (9), the first motor (305) is arranged on the upper layer in the E-shaped sliding seat (304), the gear ring (307) and the lower outer gear ring (307) is meshed with the outer gear ring (307) and the outer gear ring (307) is meshed with the outer gear ring (307), the protective cover (306) is covered outside the E-shaped sliding seat (304) and the outer gear ring (302), and the inner wall of the protective cover (306) is fixedly connected with the top and the bottom of the E-shaped sliding seat (304);
The mud-shoveling flow guide mechanism (4) comprises an impeller device and a rotary lifting driving mechanism, the impeller device comprises a connecting seat (401), wing plates (402) and fan-shaped blades (403), the number of the wing plates (402) and the number of the fan-shaped blades (403) are the same, at least 4, the tail parts of the wing plates (402) are fixedly connected with the side surfaces of the connecting seat (401), the head parts of the wing plates (402) are circular, the wing plates (402) are uniformly distributed around the connecting seat (401), all the wing plates (402) are hollow and are provided with rotating shafts on the same side, one wing plate (402) is provided with a fan-shaped blade (403), the shaft body of the rotating shaft is connected with one straight edge of the fan-shaped blade (403), the other straight edge of the fan-shaped blade (403) is corresponding to the side surface of the corresponding connecting seat (401), the arc edge of the head part of the fan-shaped blade (403) is circular, the head parts of all the fan-shaped blades (403) and the head parts of the wing plates (402) form a circle shape, the head parts of the fan-shaped blades are corresponding to the inner walls of the drilling cylinder (301), the connecting seat (401) is hollow, a second motor is arranged inside, and the second motor is arranged, and the end parts of the motor is connected with the second motor; the rotary lifting driving mechanism is arranged at the axis in the main cylinder body (1), the lower end of the rotary lifting driving mechanism is connected with the center of the connecting seat (401), and the impeller device is positioned in the drill cylinder (301) below the cylinder opening of the main cylinder body (1);
the inner transverse frame (5) is transversely arranged in the main cylinder body (1), the inner transverse frame (5) is provided with a mounting ring (10), the rod-shaped vibrator (6) is longitudinally arranged and fixedly connected with the mounting ring (10), a buffer cushion layer is arranged between the rod-shaped vibrator (6) and the mounting ring (10), the top of the main cylinder body (1) is fixedly provided with an inverted collecting hopper (7), the lower end of the rod-shaped vibrator (6) is positioned at the lower part of the main cylinder body (1), the upper end of the rod-shaped vibrator is positioned in the collecting hopper (7), the top opening of the collecting hopper (7) is communicated with a suction pump (8) at the top of the main cylinder body (1), the discharge opening of the suction pump (8) is positioned outside the main cylinder body (1), the side surface of the lower part in the main cylinder body (1) is provided with a water inlet (11), and the top opening of the collecting hopper (7) and the water inlet (11) are provided with filter screens;
The center of the top of the front and the back of the main cylinder body (1) is respectively provided with a first rotating table (12), the left sides of the lower parts of the front and the back of the main cylinder body (1) are respectively provided with a second rotating table (13), the right sides of the lower parts of the front and the back of the main cylinder body (1) are respectively provided with a third rotating table (14), the thicknesses of the first rotating table (12), the second rotating table (13) and the third rotating table (14) are different, the first rotating table (12), the second rotating table (13) and the third rotating table (14) are respectively connected with ropes (15), and the ropes (15) of the first rotating table (12), the second rotating table (13) and the third rotating table (14) are staggered; an imaging device (16) is arranged on the rope corresponding to the first rotating table (12), and the imaging device (16) is electrically connected with the monitor;
The controller is electrically connected with the first electric push rod (303), the first motor (305), the second motor, the rod-shaped vibrator (6) and the suction pump (8) respectively.
2. The sampling device for benthonic animals in deep water lakes according to claim 1, further comprising three rope winding and unwinding winches, one rope winding and unwinding winch corresponding to each of the first rotary table (12), the second rotary table (13) and the third rotary table (14).
3. The sampling device for benthonic animals in deep water lakes according to claim 1 is characterized in that an interlayer is arranged in the upper cylinder wall of the main cylinder body (1), and a counterweight material is arranged in the interlayer.
4. The deep water lake benthonic animal sampling device according to claim 1, characterized in that the rotary lifting driving mechanism comprises a second electric push rod (404), a rotary conductive device (405), an internal thread sleeve (406) and a screw (407), the screw (407) is positioned at the axis in the main cylinder body (1), the second electric push rod (404) is vertically fixed at the top in the main cylinder body (1), the lower end of the second electric push rod (404) is connected with the upper end of the screw (407) through the rotary conductive device (405), the internal thread sleeve (406) is fixedly arranged in the center of the internal cross frame (5), the screw (407) penetrates through the internal thread sleeve (406) and is in threaded fit with the internal thread sleeve (406), and the lower end of the screw (407) is fixedly connected with the center of the connecting seat (401).
5. The sampling device for benthonic animals in deep water lakes according to claim 1, characterized in that two collecting hoppers (7) are symmetrically arranged, one collecting hopper (7) is correspondingly provided with a suction pump (8), two rod-shaped vibrators (6) are arranged, and one rod-shaped vibrator (6) is correspondingly provided with one collecting hopper (7).
6. The sampling device for deep water lake benthonic animals according to claim 1, wherein the number of the wing plates (402) and the fan-shaped blades (403) is 4.
7. The deep water lake benthonic animal sampling device according to any one of claims 1 to 6, further comprising a sample point marker, wherein the sample point marker comprises a supporting leg (17), a panel (18) and a side limiting plate (19), the supporting leg (17) is fixedly arranged on the side edge of the panel (18), the lower end of the supporting leg (17) is inserted into a lake sediment layer, the panel (18) is of a 'king' structure, and the side limiting plate (19) is arranged on the outer side of the supporting leg (17).
8. The sampling method of the deepwater lake benthonic animal sampling device according to claim 7, comprising the following steps:
S1, distributing sampling points: a sample point marker is arranged at a sampling point at the bottom of a lake, and a connecting rope and a buoy with an identification function are arranged on the sample point marker to serve as long-term monitoring point position identifications;
s2, monitoring and sampling:
S201, lowering: the sampler is lowered through ropes corresponding to the first rotating table (12), the ropes of the second rotating table (13) and the third rotating table (14) are kept loose, the sampler reaches one side of the sampling point marker, the position of the sampling point marker is observed through the image pick-up device (16), the sampler is sent into the sampling point marker from one side of the sampling point marker, the ropes enter gaps of the panels (18), the sampler is placed on the lake bottom surface of the main cylinder body (1) below the panels (18), the square structure at the upper part of the main cylinder body (1) corresponds to the side limiting plate (19), the side limiting plate (19) limits the main cylinder body (1) in the horizontal direction, the jacking fixing mechanism (2) is started, the jacking fixing mechanism (2) stretches out and props against the panels (18), and the sampler is fixed;
S202, sampling: starting a first electric push rod (303) and a first motor (305), enabling a drilling cylinder (301) to move downwards and drill into sludge in the rotation process, stopping the first electric push rod (303) and the first motor (305), starting a rotary lifting driving mechanism, a second motor and a suction pump (8), enabling fan-shaped blades (403) to rotate downwards by a certain angle, enabling an impeller device to be opened and rotated downwards, enabling the fan-shaped blades (403) to continuously dip and loosen the sludge in the drilling cylinder (301) in the rotation and descending process of the impeller device, enabling the impeller device to lift reciprocally and loose the sludge, enabling a water inlet (11) to feed water, forming ascending water flow in a main cylinder (1), then discharging upwards and outwards from the suction pump (8), and enabling the sludge lifted in the working process of the impeller device to be discharged outwards along with the ascending water flow; in the loosening and discharging processes of the sludge, the rod-shaped vibrator (6) continuously vibrates to further loosen the sludge into particles; then the impeller device moves down to the bottom cylinder opening of the drilling cylinder (301), and meanwhile gradually turns over the fan-shaped blades (403) upwards until the fan-shaped blades (403) are closed, so that sludge and benthonic animals are lifted and left in the drilling cylinder (301), and the rotary lifting driving mechanism, the second motor and the suction pump (8) are stopped; starting the first electric push rod (303) to enable the drill cylinder (301) to ascend back to the starting position;
S203, recycling: the jacking and fixing mechanism (2) is retracted, the sampler is continuously moved out of one side of the sample point marker through the rope corresponding to the first rotating table (12), the sampler is far away from the water bottom by recovering the rope, then the rope of the second rotating table (13) is lifted, other ropes are kept loose, the sampler is integrally turned over and toppled over, the top of the sampler is positioned at a lower position, the rope of the third rotating table (14) is lifted up again, the sampler is in an inverted shape, and then the ropes of the second rotating table (13) and the third rotating table (14) are lifted up at the same time, and the sampler is lifted up and recovered; in the ascending process of the sampler, the fan-shaped blades (403) rotate inwards to open the impeller device, the suction pump (8) and the rod-shaped vibrator (6) are opened, water enters the main cylinder (1) from the opening gaps of the fan-shaped blades (403) and forms rotational flow in the main cylinder (1), and part of sludge is discharged from the suction pump (8) along with the vibration of the rod-shaped vibrator (6) under the scouring and centrifugal actions;
S3, post-harvest treatment: after the sampler leaves water, benthos and residual impurities are left in the collecting hopper (7), the first upper part (101) and the second upper part (102) are detached, the content of the collecting hopper (7) is poured out, and the impurities are sorted, so that benthos sampling is completed.
9. The sampling method according to claim 8, wherein 1-3 sample markers are further arranged within a range of 2m around each sampling point in the step S1.
10. The sampling method according to claim 8, characterized in that the sludge raised during operation of the impeller device of step S202, wherein the fan-shaped blades (403) are turned outwards by a maximum angle of 90 ° with respect to the screw (407); step S203, the fan-shaped blades (403) are rotated inwards, wherein the maximum inward rotation angle of the fan-shaped blades (403) relative to the screw (407) is 5 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410292637.6A CN117882684B (en) | 2024-03-14 | 2024-03-14 | Sampling device and sampling method for benthonic animals in deep water lakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410292637.6A CN117882684B (en) | 2024-03-14 | 2024-03-14 | Sampling device and sampling method for benthonic animals in deep water lakes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117882684A CN117882684A (en) | 2024-04-16 |
| CN117882684B true CN117882684B (en) | 2024-05-10 |
Family
ID=90641421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410292637.6A Active CN117882684B (en) | 2024-03-14 | 2024-03-14 | Sampling device and sampling method for benthonic animals in deep water lakes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117882684B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1028437A (en) * | 1996-07-19 | 1998-02-03 | Takakita Co Ltd | Vibration type soil swelling and softening device in carrot harvester |
| WO1998046833A1 (en) * | 1997-04-02 | 1998-10-22 | Olav Hamre | Position penetrated anchor system |
| US6237259B1 (en) * | 1999-11-23 | 2001-05-29 | Myers, Ii Arthur R. | Shellfish dredging apparatus |
| JP2005061946A (en) * | 2003-08-11 | 2005-03-10 | Nlc:Kk | Sampler |
| JP2007075044A (en) * | 2005-09-15 | 2007-03-29 | Shigenori Tamaru | Canopy-attached culture fish bank for benthic organisms, and method for culturing benthic organisms therewith |
| CN102507257A (en) * | 2011-11-16 | 2012-06-20 | 浙江省农业科学院 | Soft soil in-situ small-perturbation soil sample acquisition device |
| CN109281614A (en) * | 2018-11-28 | 2019-01-29 | 大连英蕴科技有限公司 | A kind of ship marine resources surveying device and method |
| CN210322371U (en) * | 2019-07-08 | 2020-04-14 | 生态环境部华南环境科学研究所 | Column-shaped layered sampling device for bottom mud of shallow water layer |
| CN216484009U (en) * | 2021-12-09 | 2022-05-10 | 常州市钟楼区环境监测站 | Silt sampling device that lake water quality monitoring used |
| CN216847789U (en) * | 2021-11-29 | 2022-06-28 | 四川琨鹏鸿途企业管理咨询服务有限公司 | A soil testing equipment for being directed at deep soil detects |
| CN115389253A (en) * | 2022-07-08 | 2022-11-25 | 内蒙古生态环境科学研究院有限公司 | Lake sediment collection device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2544314C (en) * | 2006-04-20 | 2009-06-30 | Willy Rieberer | Drill cutting sampler |
| US9846077B2 (en) * | 2015-01-26 | 2017-12-19 | H2Optx Inc. | Devices and methods for analyzing granular samples |
-
2024
- 2024-03-14 CN CN202410292637.6A patent/CN117882684B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1028437A (en) * | 1996-07-19 | 1998-02-03 | Takakita Co Ltd | Vibration type soil swelling and softening device in carrot harvester |
| WO1998046833A1 (en) * | 1997-04-02 | 1998-10-22 | Olav Hamre | Position penetrated anchor system |
| US6237259B1 (en) * | 1999-11-23 | 2001-05-29 | Myers, Ii Arthur R. | Shellfish dredging apparatus |
| JP2005061946A (en) * | 2003-08-11 | 2005-03-10 | Nlc:Kk | Sampler |
| JP2007075044A (en) * | 2005-09-15 | 2007-03-29 | Shigenori Tamaru | Canopy-attached culture fish bank for benthic organisms, and method for culturing benthic organisms therewith |
| CN102507257A (en) * | 2011-11-16 | 2012-06-20 | 浙江省农业科学院 | Soft soil in-situ small-perturbation soil sample acquisition device |
| CN109281614A (en) * | 2018-11-28 | 2019-01-29 | 大连英蕴科技有限公司 | A kind of ship marine resources surveying device and method |
| CN210322371U (en) * | 2019-07-08 | 2020-04-14 | 生态环境部华南环境科学研究所 | Column-shaped layered sampling device for bottom mud of shallow water layer |
| CN216847789U (en) * | 2021-11-29 | 2022-06-28 | 四川琨鹏鸿途企业管理咨询服务有限公司 | A soil testing equipment for being directed at deep soil detects |
| CN216484009U (en) * | 2021-12-09 | 2022-05-10 | 常州市钟楼区环境监测站 | Silt sampling device that lake water quality monitoring used |
| CN115389253A (en) * | 2022-07-08 | 2022-11-25 | 内蒙古生态环境科学研究院有限公司 | Lake sediment collection device |
Non-Patent Citations (2)
| Title |
|---|
| 昆承湖大型底栖动物时空分布及对环境修复的指示性;徐勇;夏霆;狄文亮;何涛;高晓平;;人民珠江;20170425(04);第63-68页 * |
| 渤海湾大型底栖生物群落结构变化及原因探讨;蔡文倩等;环境科学;20121231;第3104-3109页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117882684A (en) | 2024-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105672390A (en) | Riverway chain bucket type dredging ship and dredging construction method thereof | |
| CN209760336U (en) | Garbage classification's river course desilting device | |
| CN212872460U (en) | Silt mixes backfill compactness detection sampling device | |
| CN106053130B (en) | A kind of phytal zone Underwater Deep Silt columnar deposition matter collection device | |
| CN113638385A (en) | Floating type river cleaning device | |
| CN202169999U (en) | Refuse fishing vessel | |
| CN109540578A (en) | A kind of deep water waters deep layer undisturbed sediment sampling apparatus and application | |
| CN109757448A (en) | A kind of fishery cultivating platform | |
| CN107178368B (en) | Underwater suction filtration mining vehicle | |
| CN117882684B (en) | Sampling device and sampling method for benthonic animals in deep water lakes | |
| CN112374568A (en) | Fish culture sewage purification device based on air floatation method | |
| CN117022614A (en) | Non-disturbance seabed surface layer floating mud collecting device | |
| CN114295411A (en) | Get device of sewage and silt under water | |
| CN220535908U (en) | Water surface foreign matter cleaning and collecting device | |
| CN112945625A (en) | Fixed point in-situ coring device capable of being sealed and based on modern sedimentation shoal sampling | |
| CN117227936A (en) | Submarine salvaging device and salvaging method based on ROV | |
| CN111289302A (en) | Can realize submarine mud sampling equipment of clearance before gathering automatically | |
| CN108914899B (en) | Be used for water waste collection device | |
| CN110685261A (en) | Marine garbage recycling structure and recycling method | |
| JP2006207372A (en) | Dredge device for submarine deposit | |
| CN115030121A (en) | Water area garbage cleaning ship | |
| CN210238463U (en) | Water surface fishing device | |
| CN215640223U (en) | Fixed point in-situ coring device capable of being sealed and based on modern sedimentation shoal sampling | |
| CN110672368B (en) | Rotary conical mud sampler | |
| CN209432477U (en) | A kind of deep water waters deep layer undisturbed sediment sampling apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |