CN114194340A - Fish sample collection device - Google Patents
Fish sample collection device Download PDFInfo
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- CN114194340A CN114194340A CN202111535956.8A CN202111535956A CN114194340A CN 114194340 A CN114194340 A CN 114194340A CN 202111535956 A CN202111535956 A CN 202111535956A CN 114194340 A CN114194340 A CN 114194340A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/005—Equipment to decrease ship's vibrations produced externally to the ship, e.g. wave-induced vibrations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses a fish sample collecting device which comprises a supporting mechanism, a fixing mechanism and a collecting mechanism, wherein the supporting mechanism is arranged corresponding to the collecting mechanism, the fixing mechanism is arranged corresponding to the supporting mechanism, the supporting mechanism comprises a floating platform, the floating platform floats on the water surface, the fixing mechanism comprises a fixing anchor fixed under the water, the top end of the fixing anchor is fixedly connected with a floater through a rope, the floater is fixedly connected with a flow guide piece through the rope, the floating platform is fixedly connected with the flow guide piece through the rope, and the floating platform is fixedly connected with the collecting mechanism through the rope. The invention can quantitatively collect fish samples with different inhabitation depths, can ensure that the collected fishes are in a survival state, meets the requirements of different researches, can release the fish samples after the nondestructive research, and reduces the damage to the fishes.
Description
Technical Field
The invention relates to the technical field of fish investigation and research, in particular to a fish sample collecting device.
Background
When river fish resource investigation is used for research and relation between fish and hydrodynamic force, fish samples of different water layers in a river need to be collected according to research content requirements. According to different habits of fishes, water layers where different types and specifications of fishes inhabit are different, and samples with different water layers and different specifications need to be collected respectively for more comprehensively collecting fish samples. Generally, when investigation and sampling of river fishes are carried out, according to different water layers where the fishes inhabit, a ground cage and a barbed wire net are generally adopted for sample collection, but the investigation method has the limitation that firstly quantitative analysis cannot be prepared, secondly, except for the ground cage, the samples are difficult to guarantee survival, and thirdly, the fishes on different water layers cannot be accurately collected. In addition, the requirements for collecting the juvenile fish are stricter, and no particularly perfect method is available.
Disclosure of Invention
The invention aims to provide a fish sample collecting device to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a fish sample collecting device which comprises a supporting mechanism, a fixing mechanism and a collecting mechanism, wherein the supporting mechanism is arranged corresponding to the collecting mechanism, the fixing mechanism is arranged corresponding to the supporting mechanism, the supporting mechanism comprises a floating platform, the floating platform floats on the water surface, the fixing mechanism comprises a fixing anchor fixed under the water, the top end of the fixing anchor is fixedly connected with a floater through a guy cable, the floater is fixedly connected with a flow guide piece through the guy cable, the floating platform is fixedly connected with the flow guide piece through the guy cable, and the floating platform is fixedly connected with the collecting mechanism through the guy cable.
Preferably, the collection mechanism includes collection portion and collection portion, collection portion includes the support frame, the support frame periphery is provided with the netting, the height of support frame entry end is higher than the height of support frame exit end, collection portion with the exit end fixed connection of support frame, support frame entry end fixedly connected with protecting against shock piece.
Preferably, the support frame includes the square fixed frame of first square and the square fixed frame of second, the square fixed frame of first square and the square fixed frame of second pass through connecting rod fixed connection, the length of side of the square fixed frame of second is less than the length of side of the square fixed frame of first square, the square fixed frame of first square and second with the connecting rod is right trapezoid and sets up, the portion of collecting with the square fixed frame fixed connection of second, protecting against shock spare with the fixed frame fixed connection of first square.
Preferably, the protecting against shock spare is the pterygoid lamina, pterygoid lamina fixed connection be in the bottom of the fixed frame of first square, the contained angle between pterygoid lamina and the rivers direction is, the pterygoid lamina with contained angle between the fixed frame of first square is.
Preferably, the collecting part comprises a collecting box, the inlet end of the collecting box is fixedly connected with the second square fixing frame (6), the side wall of the collecting box is provided with a plurality of through holes, the aperture of each through hole is 2-3 mm, and one side of the collecting box, which is far away from the second square fixing frame (6), is fixedly connected with a switch part.
Preferably, the switch part comprises two baffles hinged on the collecting box, one side of any one baffle, which is far away from the collecting box, is fixedly connected with a first fixed block, one side of the other baffle, which is far away from the collecting box, is fixedly connected with a second fixed block, the first fixed block and the second fixed block are correspondingly arranged, one side of the first fixed block, which is close to the second fixed block, is provided with a sliding hole, one side of the first fixed block, which is far away from the second fixed block, is provided with a mounting hole, the sliding hole is communicated with the mounting hole, one side of the first fixed block, which is far away from the second fixed block, is provided with a mounting groove, the sliding hole, the mounting hole and the mounting groove are all coaxially arranged, the aperture of the mounting groove, the mounting hole and the sliding hole is sequentially reduced, a sliding rod is slidably connected in the sliding hole, one side of the second fixed block, which is close to the first fixed block, is provided with a limiting hole, the limiting hole is coaxially arranged with the sliding hole, the sliding rod is close to one of the second fixing blocks and stretches into the sliding hole, the limiting hole is in limiting fit, the other end of the sliding rod is fixedly connected with a stop block, the stop block is matched with the mounting groove, the sliding rod is sleeved with a spring, the spring is located in the mounting hole, one end of the spring is close to the stop block, one end of the sliding rod is fixedly connected with the spring, and the other end of the spring is close to the mounting hole and is fixedly connected with the side wall of one side of the sliding hole.
Preferably, the flow guide piece is a flow guide plate, and one end of the flow guide plate, which is close to the floater, is set to be conical.
Preferably, a frustum-shaped anti-escape net is fixedly connected in the netting, a small diameter end of the frustum-shaped anti-escape net is arranged corresponding to the collecting box, and a large diameter end of the frustum-shaped anti-escape net is arranged corresponding to the first square fixing frame. Preferably, the first and second liquid crystal materials are,
preferably, the top end of the first square fixing frame is fixedly connected with a floating ball through the rope, and the floating ball floats on the water surface.
One side of the collecting box, which is far away from the second square fixing frame, is symmetrically and fixedly connected with hinge seats, and the two baffles are hinged on the collecting box through the hinge seats.
The invention discloses the following technical effects: the fixing anchor fixes the floater through the mooring rope, the fixing anchor is connected with the floating platform through the floater, the floating platform is fixed, meanwhile, the pulling force borne by the floating platform is changed from the two-point inclined direction between the fixing anchor and the floating platform to the horizontal direction along the floater, the balance of the two ends of the floating platform is improved, the flow guide piece is arranged between the floater and the floating platform, the flow guide piece is impacted by water flow in the using process and can always keep the water flow direction, the floating platform is connected with the floating platform, the swing of the floating platform caused by uneven stress of the water flow impact can be greatly reduced, the floating platform is used for an operator to collect and release a collecting mechanism, and different types of fish samples are collected through the collecting mechanism.
The invention provides a fish sample collection device with different water layers aiming at juvenile fish and small-sized fish. Can carry out the ration collection to the fish sample of different depth of perching, can guarantee moreover to gather fish and be in the state of surviving, satisfy the demand of different researches, still can release the fish sample after the not damaged research, reduce the injury to fish.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a front view of a fish sample collection device of the present invention;
FIG. 2 is a schematic view of the structure of the collecting device of the present invention;
FIG. 3 is a force analysis diagram of the wing panel of the present invention;
fig. 4 is a schematic structural diagram of the switching section of the present invention.
The escape-preventing net comprises a frustum-shaped escape-preventing net-1, a fixed anchor-2, a rope-3, a floater-4, a first square fixed frame-5, a second square fixed frame-6, a netting-7, a wing plate-8, a collecting box-9, a baffle-10, a first fixed block-11, a second fixed block-12, a sliding hole-13, a mounting hole-14, a mounting groove-15, a sliding rod-16, a limiting hole-17, a stop block-18, a spring-19, a guide plate-20, a floating ball-21, a hinge seat-22 and a floating platform-23.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides a fish sample collecting device which comprises a supporting mechanism, a fixing mechanism and a collecting mechanism, wherein the supporting mechanism is arranged corresponding to the collecting mechanism, the fixing mechanism is arranged corresponding to the supporting mechanism, the supporting mechanism comprises a floating platform 23, the floating platform 23 floats on the water surface, the fixing mechanism comprises a fixed anchor 2 fixed under the water, the top end of the fixed anchor 2 is fixedly connected with a floater 4 through a guy 3, the floater 4 is fixedly connected with a flow guide piece through the guy 3, the floating platform 23 is fixedly connected with the flow guide piece through the guy 3, and the floating platform 23 is fixedly connected with the collecting mechanism through the guy 3.
The fixed anchor 2 plays a role in fixing the whole device, the fixed anchor 2 fixes the floater 4 through the rope 3, and is connected with the floating platform 23 through the floater 4, when the floating platform 23 is fixed, the pulling force borne by the floating platform 23 is changed from the two-point inclined direction between the fixed anchor 2 and the floating platform 23 to the horizontal direction along the floater 4, so that the balance at the two ends of the floating platform 23 is improved, the flow guide piece is arranged between the floater 4 and the floating platform 23, the flow guide piece is impacted by water flow in the using process, the water flow direction can be always kept, the floating platform 23 is connected afterwards, the swing of the floating platform 23 caused by uneven water flow impact stress can be greatly reduced, the floating platform 23 is used for an operator to collect and release a collecting mechanism, and different types of fish samples are collected through the collecting mechanism.
Further, for the collection of carrying out the fish sample, set up collection mechanism, collection mechanism includes collection portion and collection portion, and collection portion includes the support frame, and the support frame periphery is provided with the netting 7, and the height that highly is higher than the support frame exit end of support frame entry end, collection portion and the exit end fixed connection of support frame, support frame entry end fixed connection have the protecting against shock spare. The inlet end of the support frame is arranged corresponding to the water flow direction, and the outlet end of the support frame is fixedly connected with the collecting part and used for collecting fishes following the water flow. The mesh size of the netting 7 is 1.0-1.5cm, the netting 7 is made of nylon material, the front section of the netting 7 is wide, the rear end of the netting 7 is narrow, and the length of the netting 7 is 3.5-5 m.
Further, for supporting the netting 7, set up the support frame, the support frame includes the fixed frame of first square 5 and the square fixed frame 6 of second, the fixed frame of first square 5 and the square fixed frame 6 of second pass through connecting rod fixed connection, the length of side of the square fixed frame 6 of second is less than the length of side of the fixed frame of first square 5, the fixed frame of first square 5 and the square fixed frame 6 of second are right trapezoid setting with the connecting rod, the collection portion is with the square fixed frame 6 fixed connection of second, protecting against shock spare and the fixed frame 5 fixed connection of first square. The whole device is mostly made of flexible materials, and damage to fishes is avoided. The first square fixing frame 5 is made of a steel pipe material, is rectangular, and has the length of 1.2m and the width of 1.0 m; the width of the second square fixing frame 6 is 40cm, the height of the second square fixing frame is 30cm, the stability of the device is guaranteed, meanwhile, the weight of the device is reduced, and the device is convenient to fold and unfold. The first square fixing frame 5 prevents the netting 7 from deforming under the condition of water flow impact, and influences the water quantity entering the net opening. Four corners of the first square fixing frame 5 are provided with the ropes 3 fixedly connected with the floating platform 23, the angle of the first square fixing frame 5 can be adjusted by changing the length of any rope 3, the erecting posture of the first square fixing frame 5 in water is guaranteed, and sample fishes can be conveniently collected.
Set up first square fixed frame 5, the square fixed frame 6 of second and connecting rod into right trapezoid simultaneously, right trapezoid's right angle limit and water face parallel arrangement are the right angle setting between right trapezoid's inclined plane and the protecting against shock piece, so after right trapezoid inclined plane and protecting against shock piece received the impact simultaneously, right trapezoid inclined plane formed ascending power, and protecting against shock piece formed decurrent power to realize the stability of device.
Further, refer to description figure 3, for reducing the impact force of rivers to the device, set up protecting against shock spare, protecting against shock spare is pterygoid lamina 8, and 8 fixed connections of pterygoid lamina are in the bottom of the fixed frame 5 of first square, and the contained angle between pterygoid lamina 8 and the rivers direction is 45, and the contained angle between pterygoid lamina 8 and the fixed frame 5 of first square is 135. The pterygoid lamina 8 is made by the aluminum alloy material, receives the impact force of rivers when the pterygoid lamina 8, and the resolvable power that is the good vertical direction of horizontal direction, wherein the decurrent power of vertical direction and the ascending pulling force that netting 7 received form reaction force, guarantee that the device gesture is stable.
Further, for collecting the sample fish, set up the collection portion, the collection portion includes collecting box 9, and 9 entry ends of collecting box and the square fixed frame 6 fixed connection of second, a plurality of through-holes have been seted up to 9 lateral walls of collecting box, and the through-hole aperture is 2mm ~ 3mm, and one side fixedly connected with switch portion of the square fixed frame 6 of second is kept away from to collecting box 9. The collecting box 9 is made of transparent plastic materials with similar water density, the collecting box is guaranteed to be basically in a suspension state in water, the total length of the main body part of the collecting box 9 is 1.0m, 60cm in width and 50cm in height, through holes are formed in the side wall of the collecting box 9, water circulation in the collecting box 9 is guaranteed, and the survival rate of fishes is improved.
Further, in order to seal the outlet end of the collecting box 9, the switch part comprises two baffles 10 hinged on the collecting box 9, one side of any one baffle 10 far away from the collecting box 9 is fixedly connected with a first fixed block 11, one side of the other baffle 10 far away from the collecting box 9 is fixedly connected with a second fixed block 12, the first fixed block 11 and the second fixed block 12 are arranged correspondingly, one side of the first fixed block 11 close to the second fixed block 12 is provided with a sliding hole 13, one side of the first fixed block 11 far away from the second fixed block 12 is provided with a mounting hole 14, the sliding hole 13 is communicated with the mounting hole 14, one side of the first fixed block 11 far away from the second fixed block 12 is provided with a mounting groove 15, the sliding hole 13, the mounting hole 14 and the mounting groove 15 are all coaxially arranged, the diameters of the mounting groove 15, the mounting hole 14 and the sliding hole 13 are sequentially reduced, a sliding rod 16 is slidably connected in the sliding hole 13, one side of the second fixed block 12 close to the first fixed block 11 is provided with a limiting hole 17, the limiting hole 17 and the sliding hole 13 are coaxially arranged, one side of the sliding rod 16, which is close to the second fixing block 12, extends into the sliding hole 13 and is in limiting fit with the limiting hole 17, the other end of the sliding rod 16 is fixedly connected with a stop block 18, the stop block 18 is matched with the mounting groove 15, a spring 19 is sleeved on the sliding rod 16, the spring 19 is located in the mounting hole 14, one end of the spring 19 and one end of the stop block 18, which is close to the sliding rod 16, are fixedly connected, and the other end of the spring 19 and the side wall of the mounting hole 14, which is close to the sliding hole 13, are fixedly connected.
One end of a second fixed block 12 is fixedly connected with one of the baffles 10, the other end is close to one side butt that one side of place baffle 10 kept away from collecting box 9 with another baffle 10, the stability of two baffles 10 is improved, when the collecting box 9 is sealed to needs, extract slide bar 16, two closed baffles 10, then insert slide bar 16 slide hole 13, make slide bar 16 keep away from the one end of dog 18 and insert spacing downthehole 17, the fixed block gets into mounting groove 15 under the effect of spring 19 in, with the 15 inner wall butts of mounting groove, realize the closure of collecting box 9, the fixed block is close to one side fixedly connected with sealing rubber ring of slide bar 16 simultaneously, seal slide hole 13 through sealing rubber ring, avoid flowing subsidiary silt to get into and block up slide hole 13 in the slide hole 13, influence collecting box 9 and open.
Furthermore, in order to reduce the impact force of water flow on the floating platform 23, a flow guide piece is arranged, the flow guide piece is a flow guide plate 20, and one end of the flow guide plate 20, which is close to the floater 4, is arranged to be conical. The conical end part reduces the force bearing area and reduces the received impact force.
Further, in order to prevent sample fishes entering the collecting box 9 from escaping, the frustum-shaped anti-escape net 1 is fixedly connected in the netting 7, the small-diameter end of the frustum-shaped anti-escape net 1 is arranged corresponding to the collecting box 9, and the large diameter end of the frustum-shaped anti-escape net 1 is arranged corresponding to the first square fixing frame 5. The sample fish is prevented from migrating out of the second square fixing frame 6 by the frustum-shaped escape-preventing net 1.
Furthermore, in order to ensure the overall stability of the collecting mechanism, the top end of the first square fixing frame 5 is fixedly connected with a floating ball 21 through a rope 3, and the floating ball 21 floats on the water surface.
Further, in order to install the baffles 10, the collecting box 9 is symmetrically and fixedly connected with hinged seats 22 at one side far away from the second square fixing frame 6, and the two baffles 10 are hinged on the collecting box 9 through the hinged seats 22.
When the fish collecting device is used, the fixed anchor 2 is fixed at the water bottom, the fixed anchor 2 fixes the floater 4 through the rope 3, the floater 4 fixes the floating platform 23 through the rope 3, the floating platform 23 stably floats on the water surface, an operator puts the collecting device into the water on the floating platform 23, the first square fixed frame 5 is arranged opposite to the water flow direction, fish samples coming along with the water flow are collected, the collected sample fishes enter the collecting box 9, after a certain amount of fish samples are collected, the collecting device is fished out, the sliding rod 16 is pulled out, the two baffles 10 are opened, and the fish samples in the collecting box 9 are discharged.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. The utility model provides a fish sample collection device, its characterized in that includes supporting mechanism, fixed establishment and collection mechanism, supporting mechanism with collection mechanism corresponds the setting, fixed establishment with supporting mechanism corresponds the setting, supporting mechanism includes floating platform (23), floating platform (23) float on the surface of water, fixed establishment is including fixing subaqueous anchor (2), stranded cable (3) fixedly connected with float (4) are passed through on fixed anchor (2) top, float (4) pass through stranded cable (3) fixedly connected with water conservancy diversion spare, floating platform (23) pass through stranded cable (3) with water conservancy diversion spare fixed connection, floating platform (23) pass through stranded cable (3) with collection mechanism fixed connection.
2. A fish sample collection device as claimed in claim 1, wherein: gather the mechanism including gathering portion and collection portion, gather the portion including the support frame, the support frame periphery is provided with netting (7), highly being higher than of support frame entry end the height of support frame exit end, the collection portion with the exit end fixed connection of support frame, support frame entry end fixedly connected with protecting against shock spare.
3. A fish sample collection device as claimed in claim 2, wherein: the support frame includes the fixed frame of first square (5) and the square fixed frame of second (6), the fixed frame of first square (5) and the square fixed frame of second (6) pass through connecting rod fixed connection, the length of side of the square fixed frame of second (6) is less than the length of side of the fixed frame of first square (5), the fixed frame of first square (5) and the square fixed frame of second (6) with the connecting rod is right trapezoid and sets up, the portion of collection with the square fixed frame of second (6) fixed connection, protecting against shock spare with the fixed frame of first square (5) fixed connection.
4. A fish sample collection device as claimed in claim 3, wherein: protecting against shock spare is pterygoid lamina (8), pterygoid lamina (8) fixed connection be in the bottom of the fixed frame of first square (5), pterygoid lamina (8) and the contained angle between the rivers direction are 45, pterygoid lamina (8) with contained angle between the fixed frame of first square (5) is 135.
5. A fish sample collection device as claimed in claim 4, wherein: the collecting part comprises a collecting box (9), the inlet end of the collecting box (9) is fixedly connected with the second square fixing frame (6), a plurality of through holes are formed in the side wall of the collecting box (9), the aperture of each through hole is 2-3 mm, and the collecting box (9) is far away from the switch part fixedly connected with one side of the second square fixing frame (6).
6. A fish sample collection device as claimed in claim 5, wherein: the switch part comprises two baffles (10) hinged on the collecting box (9), one side of any baffle (10) far away from the collecting box (9) is fixedly connected with a first fixed block (11), one side of the other baffle (10) far away from the collecting box (9) is fixedly connected with a second fixed block (12), the first fixed block (11) and the second fixed block (12) are correspondingly arranged, one side of the first fixed block (11) close to the second fixed block (12) is provided with a sliding hole (13), one side of the first fixed block (11) far away from the second fixed block (12) is provided with a mounting hole (14), the sliding hole (13) is communicated with the mounting hole (14), one side of the first fixed block (11) far away from the second fixed block (12) is provided with a mounting groove (15), and the sliding hole (13), the mounting hole (14) and the mounting groove (15) are coaxially arranged, the mounting groove (15), mounting hole (14) and the aperture of slide opening (13) reduce in proper order, sliding connection has slide bar (16) in slide opening (13), second fixed block (12) are close to one side of first fixed block (11) has seted up spacing hole (17), spacing hole (17) with slide opening (13) coaxial arrangement, slide bar (16) are close to one of second fixed block (12) stretch into slide opening (13), with spacing cooperation in spacing hole (17), slide bar (16) other end fixedly connected with dog (18), dog (18) with mounting groove (15) looks adaptation, the cover is equipped with spring (19) on slide bar (16), spring (19) are located in mounting hole (14), spring (19) one end with dog (18) are close to slide bar (16) one end fixed connection, the other end of the spring (19) is fixedly connected with the side wall of one side of the mounting hole (14) close to the sliding hole (13).
7. A fish sample collection device as claimed in claim 1, wherein: the flow guide piece is a flow guide plate (20), and one end, close to the floater (4), of the flow guide plate (20) is conical.
8. A fish sample collection device as claimed in claim 5, wherein: the escape-proof net is characterized in that a frustum-shaped escape-proof net (1) is fixedly connected in the netting (7), the small diameter end of the frustum-shaped escape-proof net (1) corresponds to the collecting box (9), and the large diameter end of the frustum-shaped escape-proof net (1) corresponds to the first square fixing frame (5).
9. A fish sample collection device as claimed in claim 4, wherein: the top end of the first square fixing frame (5) is fixedly connected with a floating ball (21) through the rope (3), and the floating ball (21) floats on the water surface.
10. A fish sample collection device as claimed in claim 6, wherein: one side of the collecting box (9) far away from the second square fixing frame (6) is symmetrically and fixedly connected with hinge seats (22), and the two baffles (10) are hinged to the collecting box (9) through the hinge seats (22).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111535956.8A CN114194340A (en) | 2021-12-15 | 2021-12-15 | Fish sample collection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111535956.8A CN114194340A (en) | 2021-12-15 | 2021-12-15 | Fish sample collection device |
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| CN114194340A true CN114194340A (en) | 2022-03-18 |
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| CN202111535956.8A Pending CN114194340A (en) | 2021-12-15 | 2021-12-15 | Fish sample collection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116058339A (en) * | 2023-03-17 | 2023-05-05 | 生态环境部南京环境科学研究所 | A stream bottom dwelling fish diversity data acquisition device |
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