An improved device for quantitatively collecting benthic animals

Abstract

The present invention relates to the technical field of quantitative collection of benthic animals, and discloses an improved device for quantitative collection of benthic animals, comprising a collection box with a filter hole formed on the side of the collection box; a fixed frame fixedly sleeved on one end of the collection box, a collection mechanism provided at one end of the fixed frame, the collection mechanism comprising a scraper; buffer mechanisms provided on both sides of the collection box, the buffer mechanisms comprising a sleeve, one side of the sleeve fixedly mounted on one side of the collection box; a support mechanism provided at the end of the collection box, the support mechanism comprising two connecting rods. The present invention uses tilted support legs to automatically tilt the collection box when it contacts the riverbed, and automatically moves the scraper when it contacts the riverbed, thereby collecting benthic organisms. The movement of the scraper drives the piston to move, thereby reducing the speed of the scraper, thereby avoiding a reduction in the collection effect due to excessively fast movement of the scraper. The device is simple to operate and does not require diving or the use of additional tools for collection.

Description

Technical Field

[0001] The invention belongs to the technical field of quantitative collection of benthic animals, and in particular relates to an improved device for quantitative collection of benthic animals. Background Art

[0002] Macrobenthos are a vital component of aquatic ecosystems and are highly sensitive to environmental changes. Changes in their community structure can reflect shifts in water characteristics. Studying the relationship between macrobenthos and environmental factors is a hot topic in river ecology. During field monitoring, quantitative collection of river benthic animals is typically accomplished using a Sobel net, which is then placed into sample bags and brought back to the laboratory for sorting.

[0003] When the traditional Sober net is placed on the bottom of the water, it is still necessary to manually collect the benthic organisms in the Sober net, and automatic collection cannot be achieved. When the river water is deep, the operator needs to use tools or dive to the bottom of the water, which makes it more difficult to collect the benthic organisms on the riverbed.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the technical problem that when a traditional Soper net is placed on the bottom of the water, it still requires manual collection of benthic organisms in the Soper net, and automatic collection cannot be achieved. When the river water is deep, the operator needs to use tools or dive to the bottom of the water, which makes it difficult to collect benthic organisms on the riverbed. The basic concept of the technical solution adopted by the present invention is:

[0006] An improved benthic animal quantitative collection device includes a collection box with a filter hole opened on the side of the collection box;

[0007] One end of the collection box is fixedly sleeved with a fixed frame, one end of the fixed frame is provided with a collecting mechanism, the collecting mechanism includes a scraper, and the collecting mechanism is used to collect benthic organisms;

[0008] Buffer mechanisms are provided on both sides of the collection box. The buffer mechanisms include a sleeve, one side of the sleeve is fixedly mounted on one side of the collection box, a piston is slidably connected in the sleeve, one end of the piston is fixedly mounted with a push rod, one end of the push rod is fixedly mounted on one side of the scraper, a through hole is provided at the end of the sleeve, and the buffer mechanism is used to reduce the moving speed of the scraper;

[0009] A support mechanism is provided at the end of the collection box. The support mechanism includes two connecting rods. Support legs are fixedly installed at both ends of each connecting rod. One end of the support leg is movably plugged into one end of the collection box.

[0010] As a preferred embodiment of the present invention, limiting grooves are provided on both sides of the fixed frame, and pull plates are fixedly installed at both ends of the scraper. One end of the two pull plates is movably inserted into one end of the two limiting grooves and extends to the outside. The other end of the pull plate is fixedly installed with a limiting plate, and the scraper can be slidably connected to the collection box through the pull plate and the fixed frame.

[0011] As a preferred embodiment of the present invention, a fixing post is fixedly installed at the end of the inner wall of the collection box, and the fixing post is movably sleeved on the first spring, and two ends of the first spring are respectively fixedly installed on one side of the scraper and one end of the inner wall of the collection box, and the fixing post movably passes through the scraper and extends to the outside, and the fixing post is located at one end of the outer wall of the scraper and is provided with a locking groove, and one side of the scraper is rotatably connected to two locking rods, the two locking rods are symmetrically distributed, and the bottoms of the two locking rods extend out of the bottom of the scraper, and the first torsion spring is installed at the connection between the locking rod and the scraper, and the locking rod is adapted to the locking groove. Before use, the scraper is pulled first, and the scraper drives the locking rod to move. When the locking rod moves to the locking groove position, the torsion of the first torsion spring drives the locking rod to engage in the locking groove, and the scraper remains in a locked state. When the scraper contacts the river bottom, the reaction force of the river bottom is applied to the end of the locking rod, so that the locking rod and the lock groove are opened, and the scraper is unlocked, and the tension of the first spring drives the scraper to move.

[0012] As a preferred embodiment of the present invention, the bottom of the fixed frame is rotatably connected to a guide plate, one side of the guide plate is rotatably connected to two pull rods, and two grooves are provided at the bottom of the fixed frame. The two pull rods pass through the two grooves respectively and extend to the bottom of the collection box.

[0013] As a preferred embodiment of the present invention, fixed cylinders are fixedly installed on both sides of the bottom of the collection box, and a rod is movably inserted on the fixed cylinder, one end of the rod is fixedly installed with a limiting block, and the other end of the rod is fixedly installed with a retaining ring, and a second spring is movably sleeved on the rod, and the two ends of the second spring are respectively fixedly installed on one side of the retaining ring and one end of the fixed cylinder, one end of the rod is rotatably connected to one end of the pull rod, and when the scraper moves, the guide plate loses support. At this time, the elastic force of the second spring drives the retaining ring to move, and the retaining ring drives the rod to move, and the rod drives the guide plate to rotate and open through the pull rod. When the scraper is reset, the benthic organisms on the riverbed are scraped into the collection box through the guide plate. When the scraper is fully reset, the scraper squeezes the guide plate to reset it.

[0014] As a preferred embodiment of the present invention, four limiting cylinders are fixedly installed on the inner wall of the collection box, and the limiting cylinders are distributed at the four corners of the collection box. The four supporting legs are movably plugged into the four limiting cylinders respectively, and the supporting legs are limited by the limiting cylinders.

[0015] As a preferred embodiment of the present invention, two connecting blocks are fixedly installed at the end of the collection box, and a telescopic rod is rotatably connected between the two connecting blocks. Sleeves are fixedly installed at both ends of the telescopic rod, and the two sleeves are movably sleeved on the two connecting rods respectively. A second torsion spring is installed at the connection between the telescopic rod and the connecting block, and the scraper remains in a locked state, so that the push block loses support and the movable frame loses support. At this time, the torsion of the second torsion spring drives the telescopic rod to rotate, and the telescopic rod drives the connecting rod to move through the sleeve, thereby deflecting the support legs on both sides and maintaining an inclined state.

[0016] As a preferred embodiment of the present invention, a movable frame is movably sleeved on the outside of the connecting block, and the cross-sectional shape of the movable frame is a ring shape. Four sliding rods are movably inserted on the movable frame, and one end of the four sliding rods is fixedly installed on the end of the collection box. A push block is fixedly installed on one side of the movable frame, and one end of the push block movably passes through the collection box and extends to the inside. The scraper presses the push block, and the push block drives the movable frame to move. The movable frame resists the telescopic rod and keeps it perpendicular to the support leg, so that the support leg can be aligned.

[0017] As a preferred embodiment of the present invention, door panels are rotatably connected on both sides of the end of the collection box, and baffles are fixedly installed on both sides of the door panel located inside the collection box. The cross-sectional shape of the baffle is fan-shaped, and a baffle rod is fixedly installed on one side of the baffle. The collection box is slidably connected to a lock plate on one side of the door panel, and the lock plate is adapted to the door panel. The door panel drives the baffle and the baffle rod to rotate, and the baffle rod presses against the collection box to keep the door panel at a certain angle. The benthic organisms inside the collection box are discharged through the door panel, and the baffle is used to prevent the benthic organisms from scattering during discharge.

[0018] As a preferred embodiment of the present invention, a pull rope is installed at one end of the fixing column, and the device is placed into water by pulling the rope.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention uses inclined supporting legs to automatically tilt the collection box when it contacts the river bottom, and automatically moves the scraper when it contacts the river bottom, thereby collecting benthic organisms. The movement of the scraper drives the piston to move, so that the movement speed of the scraper is reduced, avoiding the scraper moving too fast and causing the collection effect to be reduced. The device is simple to operate and does not require diving or the use of additional tools for collection.

[0021] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In the attached figure:

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a structural diagram of the locking rod of the present invention;

[0025] Figure 3 This is a structural diagram of the lock slot of the present invention;

[0026] Figure 4 Schematic diagram of the internal structure of the sleeve of the present invention;

[0027] Figure 5 It is a schematic diagram of the side structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the internal structure of the collection box of the present invention;

[0029] Figure 7 This is a structural diagram of the guide plate of the present invention;

[0030] Figure 8 This is a structural diagram of the telescopic rod of the present invention;

[0031] Figure 9 It is a structural schematic diagram of the push block of the present invention.

[0032] In the picture:

[0033] 100, collection box; 101, filter hole; 102, fixing frame; 103, limiting slot; 104, groove; 105, pull plate; 106, limiting plate; 107, scraper;

[0034] 200, fixed column; 201, first spring; 202, locking rod; 203, first torsion spring; 204, locking slot;

[0035] 300, sleeve; 301, through hole; 302, ejector rod; 303, piston;

[0036] 400, limiting cylinder; 401, supporting leg; 402, connecting rod; 403, connecting block; 404, telescopic rod; 405, second torsion spring; 406, sleeve;

[0037] 500, movable frame; 501, slide bar; 502, push block;

[0038] 600, door panel; 601, baffle; 602, baffle bar; 603, lock plate;

[0039] 700, guide plate; 701, pull rod; 702, fixing cylinder; 703, insertion rod; 704, limit block; 705, retaining ring; 706, second spring. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0041] Example 1:

[0042] like Figures 1 to 9 As shown, an improved benthic animal quantitative collection device includes a collection box 100, and a filter hole 101 is opened on the side of the collection box 100;

[0043] A fixed frame 102 is fixedly sleeved on one end of the collection box 100, and a collection mechanism is provided on one end of the fixed frame 102. The collection mechanism includes a scraper 107 and is used to collect benthic organisms.

[0044] A buffer mechanism is provided on both sides of the collection box 100. The buffer mechanism includes a sleeve 300. One side of the sleeve 300 is fixedly mounted on one side of the collection box 100. A piston 303 is slidably connected to the sleeve 300. A push rod 302 is fixedly mounted on one end of the piston 303. One end of the push rod 302 is fixedly mounted on one side of the scraper 107. A through hole 301 is formed at the end of the sleeve 300. The buffer mechanism is used to reduce the movement speed of the scraper 107.

[0045] A support mechanism is provided at the end of the collection box 100 , which includes two connecting rods 402 . Support legs 401 are fixedly installed at both ends of each connecting rod 402 , and one end of the support leg 401 is movably plugged into one end of the collection box 100 .

[0046] like Figures 1 to 9 As shown, in this embodiment, fixed frame 102 defines limiting slots 103 on both sides. Pull plates 105 are fixedly mounted on both ends of scraper 107. One end of each pull plate 105 is movably inserted into one end of each limiting slot 103 and extends outward. The other end of each pull plate 105 is fixedly mounted on a limiting plate 106. In this arrangement, the pull plates 105 and fixed frame 102 allow scraper 107 to be slidably connected to collection box 100.

[0047] like Figures 1 to 9As shown, further, a fixing column 200 is fixedly installed at the end of the inner wall of the collection box 100, and a first spring 201 is movably sleeved on the fixing column 200. The two ends of the first spring 201 are respectively fixedly installed on one side of the scraper 107 and one end of the inner wall of the collection box 100. The fixing column 200 movably passes through the scraper 107 and extends to the outside. A locking groove 204 is provided at one end of the fixing column 200 located on the outside of the scraper 107. Two locking rods 202 are rotatably connected to one side of the scraper 107. The two locking rods 202 are symmetrically distributed, and the bottoms of the two locking rods 202 extend out of the bottom of the scraper 107. A first torsion spring 203 is installed at the connection between the locking rod 202 and the scraper 107, and the locking rod 202 is adapted to the locking groove 204. In this setting, the scraper 107 is pulled before use, and the scraper 107 drives the locking rod 202 to move. When the locking rod 202 moves to the position of the locking groove 204, the torsion force of the first torsion spring 203 drives the locking rod 202 to be stuck in the locking groove 204. At this time, the scraper 107 remains in a locked state. When the scraper 107 contacts the river bottom, the reaction force of the river bottom is applied to the end of the locking rod 202, thereby opening the locking rod 202 and the locking groove 204. At this time, the scraper 107 is unlocked, and the tension of the first spring 201 drives the scraper 107 to move.

[0048] Example 2:

[0049] like Figures 1 to 9 As shown, in a specific embodiment, the bottom of the fixed frame 102 is rotatably connected to a guide plate 700, and one side of the guide plate 700 is rotatably connected to two pull rods 701. Two grooves 104 are provided at the bottom of the fixed frame 102. The two pull rods 701 pass through the two grooves 104 respectively and extend to the bottom of the collection box 100. Fixed cylinders 702 are fixedly installed on both sides of the bottom of the collection box 100. An insertion rod 703 is movably inserted into the fixed cylinder 702. A limiting block 704 is fixedly installed at one end of the insertion rod 703, and a retaining ring 705 is fixedly installed at the other end of the insertion rod 703. A second spring 706 is movably sleeved on the insertion rod 703. Both ends of the second spring 706 are respectively fixedly installed on one side of the retaining ring 705 and one end of the fixed cylinder 702, and one end of the insertion rod 703 is rotatably connected to one end of the pull rod 701. In this setting, when the scraper 107 moves, the guide plate 700 loses its support. At this time, the elastic force of the second spring 706 drives the retaining ring 705 to move, and the retaining ring 705 drives the insertion rod 703 to move. The insertion rod 703 drives the guide plate 700 to rotate and open through the pull rod 701. While the scraper 107 is reset, it scrapes the benthic organisms on the riverbed into the collection box 100 through the guide plate 700. When the scraper 107 is fully reset, the scraper 107 squeezes the guide plate 700 to reset it.

[0050] like Figures 1 to 9As shown, further, four limiting cylinders 400 are fixedly installed on the inner wall of the collection box 100. The limiting cylinders 400 are distributed at the four corners of the collection box 100, and the four support legs 401 are movably plugged into the four limiting cylinders 400. In this arrangement, the supporting legs 401 are limited by the limiting cylinders 400.

[0051] Example 3:

[0052] like Figures 1 to 9 As shown, in a specific embodiment, two connecting blocks 403 are fixedly mounted at the ends of the collection box 100. A telescopic rod 404 is rotatably connected between the two connecting blocks 403. Sleeves 406 are fixedly mounted at both ends of the telescopic rod 404. The two sleeves 406 are movably connected to the two connecting rods 402. A second torsion spring 405 is installed at the connection between the telescopic rod 404 and the connecting block 403. In this configuration, the scraper 107 remains locked, causing the push block 502 and the movable frame 500 to lose support. At this time, the torsional force of the second torsion spring 405 drives the telescopic rod 404 to rotate, and the telescopic rod 404 drives the connecting rod 402 to move through the sleeve 406, thereby deflecting the support legs 401 on both sides and maintaining the tilted state.

[0053] like Figures 1 to 9 As shown, a movable frame 500 is movably sleeved on the outside of the connecting block 403. The cross-section of the movable frame 500 is circular, and four slide bars 501 are movably connected to the movable frame 500. One end of each slide bar 501 is fixedly mounted on the end of the collection box 100. A push block 502 is fixedly mounted on one side of the movable frame 500. One end of the push block 502 movably extends through the collection box 100 and into the interior. In this arrangement, the scraper 107 presses the push block 502, which drives the movable frame 500 to move. The movable frame 500 presses against the telescopic rod 404, keeping it perpendicular to the support leg 401, thereby aligning the support leg 401.

[0054] like Figures 1 to 9 As shown, further, door panels 600 are rotatably connected to both sides of the end of the collection box 100. Baffles 601 are fixedly mounted on both sides of the door panel 600 located inside the collection box 100. The cross-section of the baffle 601 is fan-shaped, and a baffle rod 602 is fixedly mounted on one side of the baffle 601. A lock plate 603 is slidably connected to the side of the door panel 600 of the collection box 100, and the lock plate 603 is adapted to the door panel 600. In this configuration, the door panel 600 drives the baffle 601 and the baffle rod 602 to rotate. The baffle rod 602 presses against the collection box 100, keeping the door panel 600 at a certain angle. The benthic organisms inside the collection box 100 are discharged through the door panel 600, and the baffle 601 prevents the benthic organisms from scattering during discharge.

[0055] like Figures 1 to 9As shown, further, a pull rope is installed at one end of the fixing column 200. In this arrangement, the device is placed in water by the pull rope.

[0056] The implementation principle of an improved benthic animal quantitative collection device of this embodiment is as follows: before use, the scraper 107 is pulled first, and the scraper 107 drives the locking rod 202 to move. When the locking rod 202 moves to the locking groove 204 position, the torsional force of the first torsion spring 203 drives the locking rod 202 to engage in the locking groove 204. At this time, the scraper 107 remains in the locked state, and the push block 502 loses its support, causing the movable frame 500 to lose its support. At this time, the torsional force of the second torsion spring 405 drives the telescopic rod 404 to rotate, and the telescopic rod 404 drives the connecting rod 402 to move through the sleeve 406, thereby deflecting the support legs 401 on both sides and maintaining an inclined state. When the scraper 107 moves, the guide plate 700 loses its support. At this time, the elastic force of the second spring 706 drives the retaining ring 705 to move, and the retaining ring 705 drives the inserting rod 703 to move, and the inserting rod 703 drives the guide plate 700 to rotate and open through the pull rod 701;

[0057] Hold the pull rope and place the collection device into the riverbed collection area. During the lowering process, the collection device as a whole remains in an upright state under the action of gravity. When the support legs 401 touch the riverbed, the support legs 401 are in an inclined state, causing the collection box 100 to tilt as a whole. Continue to lower the pull rope, so that the collection box 100 lies flat under the action of gravity. During the lying process, the collection box 100 drives the scraper 107 to move. When the scraper 107 touches the riverbed, the reaction force of the riverbed is applied to the end of the locking rod 202, so that the locking rod 202 and the locking groove 204 open. At this time, the scraper 107 is unlocked, and the tension of the first spring 201 drives the scraper 107 to move. The movement of the scraper 107 also drives the push rod 302 to move. The push rod 302 drives the piston 303 to move. The piston 303 squeezes the water inside the sleeve 300 and discharges it through the through hole 301. At the same time, the flow rate of water passing through the through hole 301 is limited, which reduces the movement speed of the piston 303, thereby reducing the movement speed of the scraper 107.

[0058] As the scraper 107 moves, it scrapes the benthic organisms on the riverbed into the collection box 100 through the guide plate 700. When the scraper 107 is fully reset, the scraper 107 squeezes the guide plate 700 to reset it. At the same time, the scraper 107 presses the push block 502, and the push block 502 drives the movable frame 500 to move. The movable frame 500 presses against the telescopic rod 404 and keeps it perpendicular to the support leg 401, so that the support leg 401 can be aligned. The collection box 100 can be taken out by pulling the pull rope. 0, and placed on the ground through the support legs 401. At this time, the bottom of the collection box 100 is kept apart from the ground, and the sliding lock plate 603 is staggered with the door panel 600. The door panel 600 is opened, and the door panel 600 drives the baffle 601 and the baffle rod 602 to rotate. The baffle rod 602 presses against the collection box 100, so that the door panel 600 maintains a certain angle. The benthic organisms inside the collection box 100 are discharged through the door panel 600, and the baffle 601 prevents the benthic organisms from scattering during discharge.

Claims

1. An improved benthic animal quantitative collection device, comprising a collection box (100), characterized in that: The side of the collection box (100) is provided with a filter hole (101); a fixed frame (102) is fixedly sleeved on one end of the collection box (100); a collection mechanism is provided at one end of the fixed frame (102); the collection mechanism includes a scraper (107); the collection mechanism is used to collect benthic organisms; buffer mechanisms are provided on both sides of the collection box (100); the buffer mechanisms include a sleeve (300); one side of the sleeve (300) is fixedly mounted on one side of the collection box (100); a piston (303) is slidably connected in the sleeve (300); A push rod (302) is fixedly mounted on one end of the piston (303), and one end of the push rod (302) is fixedly mounted on one side of the scraper (107). A through hole (301) is provided at the end of the sleeve (300), and the buffer mechanism is used to reduce the moving speed of the scraper (107); a support mechanism is provided at the end of the collection box (100), and the support mechanism includes two connecting rods (402), and each of the two ends of the connecting rod (402) is fixedly mounted with a support leg (401), and one end of the support leg (401) is movably plugged into one end of the collection box (100); A fixing column (200) is fixedly installed at the end of the inner wall of the collection box (100), and a first spring (201) is movably sleeved on the fixing column (200), and the two ends of the first spring (201) are respectively fixedly installed on one side of the scraper (107) and one end of the inner wall of the collection box (100), and the fixing column (200) movably passes through the scraper (107) and extends to the outside, and a locking groove (204) is provided at one end of the fixing column (200) located on the outside of the scraper (107), and two locking rods (202) are rotatably connected to one side of the scraper (107), and the two locking rods (202) are symmetrically distributed, and the bottoms of the two locking rods (202) extend out of the bottom of the scraper (107), and a first torsion spring (203) is installed at the connection between the locking rod (202) and the scraper (107), and the locking rod (202) is adapted to the locking groove (204); Two connecting blocks (403) are fixedly installed at the end of the collection box (100), a telescopic rod (404) is rotatably connected between the two connecting blocks (403), sleeves (406) are fixedly installed at both ends of the telescopic rod (404), and the two sleeves (406) are movably sleeved on the two connecting rods (402) respectively, and a second torsion spring (405) is installed at the connection between the telescopic rod (404) and the connecting block (403); A movable frame (500) is movably sleeved on the outer side of the connecting block (403), and the cross-section of the movable frame (500) is circular. Four sliding rods (501) are movably inserted on the movable frame (500), and one end of the four sliding rods (501) is fixedly installed on the end of the collection box (100). A push block (502) is fixedly installed on one side of the movable frame (500), and one end of the push block (502) movably penetrates the collection box (100) and extends to the inside.

2. The improved benthic animal quantitative collection device according to claim 1, characterized in that: Limiting grooves (103) are provided on both sides of the fixing frame (102), and pull plates (105) are fixedly installed at both ends of the scraper (107). One end of the two pull plates (105) is movably plugged into one end of the two limiting grooves (103) and extends to the outside, and the other end of the pull plate (105) is fixedly installed with a limiting plate (106).

3. The improved benthic animal quantitative collection device according to claim 1, characterized in that: The bottom of the fixed frame (102) is rotatably connected to a guide plate (700), one side of the guide plate (700) is rotatably connected to two pull rods (701), and two grooves (104) are provided at the bottom of the fixed frame (102), and the two pull rods (701) pass through the two grooves (104) respectively and extend to the bottom of the collection box (100).

4. The improved benthic animal quantitative collection device according to claim 3, characterized in that: A fixed cylinder (702) is fixedly installed on both sides of the bottom of the collection box (100), and a rod (703) is movably inserted into the fixed cylinder (702). A limit block (704) is fixedly installed on one end of the rod (703), and a retaining ring (705) is fixedly installed on the other end of the rod (703). A second spring (706) is movably sleeved on the rod (703), and the two ends of the second spring (706) are respectively fixedly installed on one side of the retaining ring (705) and one end of the fixed cylinder (702), and one end of the rod (703) is rotatably connected to one end of the pull rod (701).

5. The improved benthic animal quantitative collection device according to claim 1, characterized in that: Four limiting cylinders (400) are fixedly mounted on the inner wall of the collection box (100), the limiting cylinders (400) are distributed at the four corners of the collection box (100), and the four supporting legs (401) are movably plugged into the four limiting cylinders (400) respectively.

6. The improved benthic animal quantitative collection device according to claim 1, characterized in that: Door panels (600) are rotatably connected to both sides of the end of the collection box (100), baffles (601) are fixedly installed on both sides of the door panels (600) located inside the collection box (100), the cross-section of the baffles (601) is fan-shaped, and a baffle rod (602) is fixedly installed on one side of the baffle (601), and a lock plate (603) is slidably connected to one side of the door panel (600) of the collection box (100), and the lock plate (603) is adapted to the door panel (600).

7. The improved benthic animal quantitative collection device according to claim 1, characterized in that: A pull rope is installed at one end of the fixing column (200).

Images