Fishery resource investigation trapping cage body and trapping device

Abstract

The invention discloses a fishery resource investigation trapping cage and trapping device.According to the technical scheme, the trapping cage comprises a trapping cage body, the trapping cage body comprises a trapping frame, a trapping top plate and a trapping bottom plate, a plurality of fixed side plates and movable side plates are arranged on the side face of the trapping frame, and a trapping inlet is formed in the trapping frame; an opening and closing driving assembly matched with the movable side plate is arranged on the trapping frame, the trapping cage body is further provided with a control assembly, a monitoring assembly and a bait casting assembly which are located in the trapping frame, and the control assembly comprises a waterproof controller and a waterproof battery pack electrically connected with the controller. A wireless communication module in wireless communication connection with an upper computer is arranged in the controller, and the monitoring assembly comprises an infrared pyroelectric sensor and an underwater camera which are matched with each other. The aquatic organism trapping cage has the advantages that the structure is simple, the trapping inlet is large in opening, aquatic organisms can enter the trapping cage body conveniently, researchers can catch the aquatic organisms conveniently, and observation and research of the aquatic organisms are promoted.

Description

Technical Field

[0001] The invention relates to the technical field of aquatic fishing, and in particular to a trapping cage and a trapping device for fishery resource investigation. Background Art

[0002] In the fields of aquatic ecological monitoring and fishery resource surveys, a thorough understanding of the aquatic life conditions in specific waters and at specific depths is crucial. Investigators should not only focus on native aquatic species such as fish, shrimp, crabs, turtles, and snails, but also on introduced aquatic organisms such as golden apple snails and tilapia. This is because introduced aquatic organisms, with their strong adaptability and reproductive characteristics, can have a number of negative impacts on local ecosystems and fishery resources. For example, golden apple snails have a wide-ranging diet, consuming aquatic plants, disrupting the ecological balance of the water body and potentially spreading parasites. Tilapias reproduce rapidly, competing with native fish for food and living space, impacting local biodiversity and the stability of fishery resources.

[0003] To effectively observe these aquatic organisms, investigators typically deploy traps at specific locations and regularly retrieve and inspect them, recording information such as the species, number, and size of the captured organisms. Analysis of this data provides insights into the population dynamics and distribution patterns of different aquatic organisms in specific waters, as well as the spread of introduced aquatic organisms. This provides strong data support for the sustainable management of fishery resources, the protection of aquatic ecosystems, and the development of ecological restoration strategies.

[0004] For example, Chinese patent publication number CN 222108993 U discloses a plastic fish cage, comprising a plastic fish cage body, the plastic fish cage body being capable of providing space for fixing and installing various components; the plastic fish cage body comprising: mounting shells, two sets of the mounting shells being fixedly connected in a mirror-image manner, the two sets of the mounting shells being capable of being combined into a whole to provide space for captured eels to enter and be stored; first air vents, a plurality of which are mirror-imaged and formed on the surfaces of the two sets of the mounting shells, the plurality of which are capable of providing air vents for the eels inside the plastic fish cage body. The plurality of first air vents can provide sufficient air vents inside the plastic fish cage body, and the eels can be hung through the hanging holes when not in use to dry without taking up space. Although the plastic elastic sheet in this patent can prevent eels from escaping, it has a certain structural strength and requires a large force to open it, which prevents relatively weaker aquatic organisms from entering. It will also damage the surface of the aquatic organisms that enter, affecting the subsequent observation and research of scientific researchers. In addition, the plastic elastic sheet also blocks the field of view of the opening end to a certain extent, further reducing the number of aquatic organisms that can enter.

[0005] Therefore, it is very necessary to improve the existing technology. Summary of the Invention

[0006] In response to the shortcomings of the existing technology, the present invention provides a trapping cage and a trapping device for fishery resource surveys, which have a simple structure, a large trapping inlet opening, and facilitate the entry of aquatic organisms into the trapping cage, making it easier for scientific researchers to capture aquatic organisms and promoting the observation and research of aquatic organisms.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a trapping cage for fishery resource survey, comprising a trapping cage, wherein the trapping cage is arranged in a regular polygonal structure, the trapping cage comprising a trapping frame and a trapping top plate and a trapping bottom plate arranged on the upper and lower sides of the trapping frame, the side of the trapping frame is provided with a plurality of fixed side plates and a movable side plate movably connected to the trapping frame, the trapping top plate, the trapping bottom plate, the fixed side plates and the movable side plates are all fixedly connected with a trapping net, the number of the movable side plates is set to at least one, and the fixed side plates are connected to the trapping frame. They are fixedly connected to each other, the trapping frame is provided with a trapping inlet adapted to the movable side panel, the trapping frame is provided with an opening and closing drive component adapted to the movable side panel, the trapping cage is also provided with a control component, a monitoring component and a bait throwing component located inside the trapping frame, the control component includes a waterproof controller and a waterproof battery pack electrically connected to the controller, the controller is provided with a wireless communication module wirelessly connected to the host computer, the controller and the opening and closing drive component are electrically connected to each other, the monitoring component includes an adapted infrared pyroelectric sensor and an underwater camera, and a waterproof connecting rope for pulling is bound to the trapping cage.

[0008] By adopting the above technical solution, the opening and closing drive component controls the movement of the movable side panel, thereby controlling the opening and closing of the trapping inlet. At the same time, the control component, monitoring component and baiting component in the trapping cage cooperate with each other to monitor and lure aquatic organisms. The trapping inlet has a large opening, which facilitates the entry of aquatic organisms into the trapping cage, thereby promoting the observation and research of aquatic organisms.

[0009] The present invention is further configured as follows: the bait feeding component includes a discharge pipe and a bait feeding bin connected to the discharge pipe, a spiral feeder and bait for feeding adapted to the spiral feeder are provided in the bait feeding bin, the bait for feeding is arranged in a sugar ball-shaped structure, an underwater solenoid valve and a bait net cover adapted to the underwater solenoid valve are provided at the end of the discharge pipe, the bait net cover is provided with evenly distributed bait through holes, and the aperture of the bait through holes is smaller than that of the bait.

[0010] By adopting the above technical solution, the bait in the bait bin is transported to the outlet of the discharge pipe through a spiral feeder, and the underwater solenoid valve controls whether the bait enters the bait net cover. The bait in the bait net cover is used to lure aquatic organisms.

[0011] The present invention is further configured as follows: the opening and closing drive assembly includes a support locking block and a movable support rod adapted to the support locking block, a locking movable groove adapted to the movable support rod is provided on the support locking block, a waterproof driving motor and a telescopic locking tongue adapted to the rotating shaft of the driving motor are provided on one side of the inner wall of the locking movable groove, when the telescopic locking tongue is extended, one end of the movable support rod is abutted and connected with the telescopic locking tongue, when the telescopic locking tongue is retracted, one end of the movable support rod passes through the locking sliding groove, the other end of the movable support rod is hingedly connected to one end of the movable side plate, and a retreat groove adapted to the movable support rod is provided on the trapping frame, the movable side plate is hingedly connected to the trapping inlet by setting a hinge part, and the hinge part is set as a spring hinge.

[0012] By adopting the above technical solution, the telescopic action of the telescopic locking tongue is controlled by controlling the driving motor. When the telescopic locking tongue is extended, the movable support rod, the movable side plate and the capture frame form a stable triangular structure so that the trapping entrance is in an open state. When the telescopic locking tongue is retracted, the movable support rod is not abutted by the telescopic locking tongue, so that under the action of the spring in the spring hinge, the movable support rod disengages from the locking sliding groove, and the movable side plate deflects to one side of the trapping entrance, and then the movable side plate is quickly pressed on the trapping entrance, so that the trapping entrance is in a closed state.

[0013] The present invention is further configured as follows: the opening and closing drive assembly includes a waterproof driving electric cylinder and a movable support rod, the movable support rod includes a first movable rod and a second movable rod that are hingedly connected, the driving electric cylinder is fixedly connected to the trapping frame by setting a driving bracket, and the piston rod of the driving electric cylinder is fixedly connected to the first movable rod, the end of the second movable rod is hingedly connected to one end of the movable side plate, and the other end of the trapping inlet is hingedly connected to the movable side plate by setting a hinge.

[0014] By adopting the above technical solution, when the electric rod is driven away from one side to push the first movable rod and the second movable rod, the movable side plate deflects away from the trapping inlet, and the trapping inlet is in an open state. Conversely, the trapping inlet is in a closed state.

[0015] The present invention is further configured as follows: the opening and closing drive assembly includes a waterproof drive motor and a movable rack connected to the left and right sides of the movable side panel, the movable side panel slides left and right on the trapping inlet, and limiting slide grooves are provided on the upper and lower sides of the trapping inlet, and the upper and lower sides of the movable side panel are fixedly connected with limiting protrusions adapted to the limiting slide grooves, the movable rack and the limiting protrusions are fixedly connected to each other and adapted to the limiting slide grooves, and a movable gear adapted to the movable rack is fixedly connected to the rotating shaft of the drive motor, and the movable gear and the movable rack are movably connected to each other by biting.

[0016] By adopting the above technical solution, the left and right movement of the movable side plate is controlled by controlling the forward and reverse rotation of the driving motor, thereby controlling the opening and closing of the trapping entrance.

[0017] On the other hand, the present invention provides the following technical solution: a fishery resource survey trapping device, comprising a plurality of the above-mentioned trapping cages, wherein the trapping cages are evenly distributed in the vertical or horizontal direction, and two adjacent trapping cages are detachably connected to each other by providing a cage clamping structure, the cage clamping structure comprising a first connecting block and a second connecting block adapted to the first connecting block, one end of the second connecting block being hingedly connected to the first connecting block by providing a pin shaft, and the other end being detachably connected to the first connecting block by providing a live bolt, the first connecting block being provided with a movable slot adapted to the live bolt, and the first connecting block being provided with a connecting slot adapted to the trapping frame.

[0018] By adopting the above technical solution, when the trapping cages are evenly distributed in the vertical direction, it is convenient to capture aquatic organisms at different water depths, or when the trapping cages are evenly distributed in the horizontal direction, it is convenient to expand the capture range of aquatic organisms at a specific water depth, which is convenient for scientific researchers to observe and study aquatic organisms.

[0019] On the other hand, the present invention provides the following technical solution: a fishery resource survey trapping device, comprising several of the above-mentioned trapping cages, wherein a cage fixing rod connected to the trapping cage is provided on one side of the trapping cage, the trapping cage surrounds the cage fixing rod and is evenly distributed in a spiral shape, and several evenly distributed cage connecting sleeves are sleeved on the cage fixing rod, and one end of the cage connecting sleeve is detachably connected to the trapping cage by providing a cage clamping structure.

[0020] By adopting the above technical solution, the trapping cages are evenly distributed in a spiral shape around the cage fixing rod, which makes it easier for scientific researchers to capture aquatic organisms at different water depths while maximizing the capture range.

[0021] The present invention is further configured as follows: the cage body clamping structure includes a first connecting block and a second connecting block adapted to the first connecting block, the first connecting block and the cage body connecting sleeve are an integrated structure, one end of the second connecting block is hingedly connected to the first connecting block by setting a pin shaft, and the other end is detachably connected to the first connecting block by setting a live bolt, the first connecting block is provided with a movable slot adapted to the live bolt, and the first connecting block is provided with a connecting slot adapted to the trapping frame.

[0022] By adopting the above technical solution, the trapping cage is snap-connected via the connecting slots on the first connecting block.

[0023] The present invention is further configured as follows: a fixed base that slides up and down is sleeved on the lower part of the cage fixing rod, the fixed base and the cage fixing rod are connected to each other by a threaded manner, the lower bottom surface of the fixed base and the cage fixing rod are arranged perpendicular to each other, and a plurality of counterweights adapted thereto are embedded in the fixed base, and the lower end of the cage fixing rod is passed through the bottom of the river or pond.

[0024] By adopting the above technical solution, the cage fixing rod is passed through the soil at the bottom of the river or pond to ensure its structural stability, and the fixed base increases the stability of the cage fixing rod, thereby ensuring the overall stability of the capture device. If the bottom of the river or pond is a flat and hard land, the fixed base is adjusted to the lowest point of the cage fixing rod, so that the fixed base ensures the stability of the cage fixing rod, thereby ensuring the overall stability of the capture device.

[0025] On the other hand, the present invention provides the following technical solution: a fishery resource survey trapping device, comprising the above-mentioned trapping cage, a remote-controlled floating boat floating on the water surface is arranged above the trapping cage, the lower end of the remote-controlled floating boat is fixedly connected to the middle part of the trapping cage by a connecting rope, and a waterproof signal line compatible with the connecting rope is inserted inside the connecting rope.

[0026] By adopting the above technical solution, the placement position of the trapping cage is controlled by a remote-controlled floating boat, so that aquatic organisms at specific positions can be captured.

[0027] In summary, the present invention has the following beneficial effects: 1. The opening and closing drive components control the movement of the movable side panels, thereby controlling the opening and closing of the trapping inlet. At the same time, the control components, monitoring components, and baiting components inside the trapping cage cooperate with each other to monitor and lure aquatic organisms. The trapping inlet has a large opening, making it easy for aquatic organisms to enter the trapping cage, promoting the observation and research of aquatic organisms. 2. When the trapping cages are evenly distributed in the vertical direction, it is convenient to capture aquatic organisms at different water depths, or when the trapping cages are evenly distributed in the horizontal direction, it is convenient to expand the capture range of aquatic organisms at a specific water depth, which is convenient for scientific researchers to observe and study aquatic organisms; when the trapping cages are evenly distributed in a spiral shape around the cage fixing rod, it is convenient for scientific researchers to capture aquatic organisms at different water depths and maximize the capture range; by controlling the placement position of the trapping cages through a remote-controlled floating boat, aquatic organisms at a specific location can be captured. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional diagram of embodiment 1.

[0029] Figure 2 for Figure 1 A local enlarged schematic diagram of point I in the middle.

[0030] Figure 3It is a top view of the first embodiment.

[0031] Figure 4 for Figure 3 Schematic diagram of the cross section at AA in the middle.

[0032] Figure 5 for Figure 3 Schematic diagram of the cross section at BB in the middle.

[0033] Figure 6 This is a structural diagram of the inner bottom of Example 1.

[0034] Figure 7 for Figure 6 Exploded diagram of the control and monitoring components.

[0035] Figure 8 This is a schematic structural diagram of the inner top of Example 1.

[0036] Figure 9 for Figure 8 Schematic diagram of the cross-sectional structure of the bait casting component.

[0037] Figure 10 This is a structural diagram of Example 2.

[0038] Figure 11 This is a structural diagram of Example 3.

[0039] Figure 12 This is a structural diagram of Example 4.

[0040] Figure 13 for Figure 12 Schematic diagram of the middle cage body snap-on structure.

[0041] Figure 14 This is a structural diagram of Example 5.

[0042] Figure 15 This is a structural diagram of Example 6.

[0043] Figure 16 for Figure 15 A local enlarged schematic diagram of point II in the middle.

[0044] Figure 17 for Figure 15 Schematic diagram of the lower end of the middle cage fixing rod inserted into the soil.

[0045] Figure 18 for Figure 15 Schematic diagram of the lower end of the middle cage fixing rod placed on a hard ground.

[0046] Figure 19 This is a structural diagram of Example 7.

[0047] Figure numerals: 1, trapping frame; 11, trapping inlet; 111, limiting slide; 12, trapping top plate; 13, trapping bottom plate; 14, fixed side plate; 15, connecting rope; 151, waterproof signal line; 16, retreat groove; 2, movable side plate; 21, hinge; 23, movable rack; 24, limiting protrusion; 3, opening and closing drive assembly; 31, support locking block; 311, locking movable groove; 32, movable support rod; 321, first movable rod; 322, second movable rod; 33, driving motor; 331, telescopic locking tongue; 332, movable gear; 34, driving electric cylinder; 341, Drive bracket; 4. Control component; 41. Controller; 42. Battery pack; 43. Wireless communication module; 5. Monitoring component; 51. Pyroelectric sensor; 52. Underwater camera; 6. Baiting component; 61. Discharge pipe; 62. Bait feeding bin; 63. Screw feeder; 64. Underwater solenoid valve; 65. Bait net cover; 7. Cage body clamping structure; 71. First connecting block; 711. Movable slot; 712. Connecting slot; 72. Second connecting block; 73. Slipknot bolt; 74. Cage body connecting sleeve; 8. Cage body fixing rod; 81. Fixed base; 811. Counterweight; 9. Remote control floating boat. DETAILED DESCRIPTION

[0048] The present invention will be further described in detail below with reference to the accompanying drawings.

[0049] Example 1, a trapping cage for fishery resource survey, such as Figure 1 and 2 As shown, it includes a trapping cage, which is arranged in a regular polygonal structure. The trapping cage includes a trapping frame 1 and a trapping top plate 12 and a trapping bottom plate 13 arranged on the upper and lower sides of the trapping frame 1. The side of the trapping frame 1 is provided with several fixed side plates 14 and a movable side plate 2 movably connected to the trapping frame 1. The trapping top plate 12, the trapping bottom plate 13, the fixed side plate 14 and the movable side plate 2 are all fixedly connected with a trapping net. The number of movable side plates 2 is set to at least one. The fixed side plate 14 and the trapping frame 1 are fixedly connected to each other. The trapping frame 1 is provided with a trapping inlet 11 adapted to the movable side plate 2. The trapping inlet 11 is used to lure aquatic organisms into the interior of the trapping cage. The trapping frame 1 is provided with an opening and closing drive component 3 adapted to the movable side plate 2.

[0050] like Figures 6 to 9As shown, the trapping cage is also provided with a control component 4, a monitoring component 5 and a bait throwing component 6 located inside the trapping frame 1. The control component 4 includes a waterproof controller 41 and a waterproof battery pack 42 electrically connected to the controller 41. A wireless communication module 43 connected to the host computer for wireless communication is provided in the controller 41. The controller 41 is electrically connected to the opening and closing drive component 3. The monitoring component 5 includes an adaptive infrared pyroelectric sensor 51 and an underwater camera 52. The infrared pyroelectric monitors that aquatic organisms are approaching the trapping cage and starts the underwater camera 52 to monitor whether there are water organisms entering the trapping cage. Once aquatic organisms enter the trapping cage, the controller 41 controls the opening and closing drive component 3 to open the trapping cage. The movable side panel 2 moves to close the trapping inlet 11, completing the aquatic organism capture work. The bait feeding component 6 includes a discharge pipe 61 and a feeding bait bin 62 connected to the discharge pipe 61. A spiral feeder 63 and bait matched with the spiral feeder 63 are provided in the feeding bait bin 62. The bait is used to trap aquatic organisms, and the bait is arranged in a sugar ball-shaped structure. An underwater solenoid valve 64 and a bait mesh cover 65 matched with the underwater solenoid valve 64 are provided at the end of the discharge pipe 61. Evenly distributed bait through holes are opened on the bait mesh cover 65. The aperture of the bait through holes is smaller than that of the bait. The bait mesh cover 65 can prevent the bait from floating or sinking out of the trapping frame 1, thereby affecting the aquatic organism capture effect.

[0051] like Figure 1 and 3 As shown, a waterproof connecting rope 15 for lifting is bound to the trapping cage. After successfully capturing aquatic organisms, researchers use the connecting rope 15 to lift the trapping cage out of the water.

[0052] like Figures 1 to 5When the cam 33 is unlocked, the cam 331 is unlocked and the lock 31 is unlocked, so that the cam 331 can be unlocked and the lock 31 can be unlocked. The movable side panel 2 is hingedly connected to the trapping entrance 11, and the hinge part 21 is set as a spring hinge. The spring hinge makes the movable side panel 2 pressed against the trapping entrance 11 when not subjected to external force. When the movable side panel 2 is not subjected to external force, the trapping entrance 11 is in a closed state under the action of the spring hinge. The telescopic locking tongue 331 is controlled by controlling the driving motor 33. When the telescopic locking tongue 331 is extended, the movable support rod 32, the movable side panel 2 and the capture frame form a stable triangular structure so that the trapping entrance 11 is in an open state. When the telescopic locking tongue 331 is retracted, the movable support rod 32 is not abutted by the telescopic locking tongue 331, so that under the action of the spring in the spring hinge, the movable support rod 32 disengages from the locking sliding groove, and the movable side panel 2 deflects to one side of the trapping entrance 11, and then the movable side panel 2 is quickly pressed on the trapping entrance 11, so that the trapping entrance 11 is in a closed state.

[0053] Example 2, a trapping cage for fishery resource survey, such as Figure 10 As shown, the difference from Example 1 is that the opening and closing drive assembly 3 includes a waterproof driving electric cylinder 34 and a movable support rod 32, the movable support rod 32 includes a first movable rod 321 and a second movable rod 322 that are hingedly connected, the driving electric cylinder 34 is fixedly connected to the trapping frame 1 by setting a driving bracket 341, and the piston rod of the driving electric cylinder 34 is fixedly connected to the first movable rod 321, the end of the second movable rod 322 is hingedly connected to one end of the movable side plate 2, and the other end of the trapping inlet 11 is hingedly connected to the movable side plate 2 by setting a hinge 21. When the driving electric cylinder 34 pushes the first movable rod 321 and the second movable rod 322 away from one side thereof, the movable side plate 2 deflects away from the side of the trapping inlet 11, and the trapping inlet 11 is in an open state. Conversely, the trapping inlet 11 is in a closed state.

[0054] Example 3, a trapping cage for fishery resource survey, such as Figure 11As shown, the difference from Examples 1 and 2 is that the opening and closing drive assembly 3 includes a waterproof driving motor 33 and a movable rack 23 connected to the left and right sides of the movable side panel 2. The movable side panel 2 slides left and right on the trapping inlet 11. The upper and lower sides of the trapping inlet 11 are provided with limiting chutes 111. The upper and lower sides of the movable side panel 2 are fixedly connected with limiting protrusions 24 that are adapted to the limiting chutes 111. The limiting chutes 111 and the limiting protrusions 24 cooperate with each other to ensure the smooth sliding of the movable side panel 2. The movable rack 23 and the limiting protrusions 24 are fixedly connected to each other and adapted to the limiting chutes 111. The rotating shaft of the driving motor 33 is fixedly connected with a movable gear 332 that is adapted to the movable rack 23. The movable gear 332 and the movable rack 23 are movably connected to each other by biting. The left and right movement of the movable side panel 2 is controlled by controlling the forward and reverse rotation of the driving motor 33, thereby controlling the opening and closing of the trapping inlet 11.

[0055] Example 4: A fishery resource survey trapping device, such as Figure 12 and 13 As shown, it includes several trapping cages evenly distributed in the vertical direction. Aquatic organisms live in a specific water depth. Therefore, when the trapping cages are evenly distributed in the vertical direction, it is convenient to capture aquatic organisms at different water depths, which is convenient for scientific researchers to observe and study aquatic organisms. Two adjacent trapping cages are detachably connected to each other by setting a cage clamping structure 7. The cage clamping structure 7 includes a first connecting clamping block 71 and a second connecting clamping block 72 adapted to the first connecting clamping block 71. One end of the second connecting clamping block 72 is hingedly connected to the first connecting clamping block 71 by setting a pin, and the other end is detachably connected to the first connecting clamping block 71 by setting a live bolt 73. The first connecting clamping block 71 is provided with a movable clamping groove 711 adapted to the live bolt 73, and the first connecting clamping block 71 is provided with a connecting clamping groove 712 adapted to the trapping frame 1. The cage clamping structure 7 facilitates the disassembly and assembly of the trapping cages.

[0056] Example 5: A fishery resource survey trapping device, such as Figure 14As shown, it includes several trapping cages evenly distributed in the horizontal direction. When the trapping cages are evenly distributed in the horizontal direction, it is convenient to expand the capture range of aquatic organisms at a specific water depth, which is convenient for scientific researchers to observe and study aquatic organisms. Two adjacent trapping cages are detachably connected to each other by setting a cage clamping structure 7. The cage clamping structure 7 includes a first connecting clamping block 71 and a second connecting clamping block 72 adapted to the first connecting clamping block 71. One end of the second connecting clamping block 72 is hingedly connected to the first connecting clamping block 71 by setting a pin, and the other end is detachably connected to the first connecting clamping block 71 by setting a live bolt 73. The first connecting clamping block 71 is provided with a movable clamping groove 711 adapted to the live bolt 73, and the first connecting clamping block 71 is provided with a connecting clamping groove 712 adapted to the trapping frame 1. The cage clamping structure 7 facilitates the disassembly and assembly of the trapping cages.

[0057] Example 6: A fishery resource survey trapping device, such as Figure 15 and 16 As shown, the difference from Example 5 is that it includes a cage fixing rod 8 and several trapping cages connected to the cage fixing rod 8. The trapping cages surround the cage fixing rod 8 and are evenly distributed in a spiral shape. A number of evenly distributed cage connecting sleeves 74 are sleeved on the cage fixing rod 8. One end of the cage connecting sleeve 74 is detachably connected to the trapping cage by setting a cage clamping structure 7. The trapping cages are evenly distributed in a spiral shape to facilitate the capture of aquatic organisms at different water depths. The cage clamping structure 7 facilitates the disassembly and assembly of the trapping cage.

[0058] like Figure 16 As shown, the cage body clamping structure 7 includes a first connecting block 71 and a second connecting block 72 adapted to the first connecting block 71. The first connecting block 71 and the cage body connecting sleeve 74 are an integrated structure. One end of the second connecting block 72 is hingedly connected to the first connecting block 71 by setting a pin, and the other end is detachably connected to the first connecting block 71 by setting a live bolt 73. A movable slot 711 adapted to the live bolt 73 is provided on the first connecting block 71, and a connecting slot 712 adapted to the trapping frame 1 is provided on the first connecting block 71. The trapping cage is clamped and connected through the connecting slots 712 on the first connecting block 71 and the second connecting block 72.

[0059] like Figure 17 and 18As shown, the lower part of the cage fixing rod 8 is provided with a fixed base 81 that slides up and down, and the fixed base 81 and the cage fixing rod 8 are connected to each other by means of threads. The lower bottom surface of the fixed base 81 and the cage fixing rod 8 are perpendicular to each other, and a number of counterweights 811 adapted thereto are embedded in the fixed base 81. The lower end of the cage fixing rod 8 is passed through the bottom of the river or pond. By passing the cage fixing rod 8 through the soil at the bottom of the river or pond, its structure is ensured to be stable, and the fixed base 81 increases the stability of the cage fixing rod 8, thereby ensuring the stability of the capture device as a whole. If the bottom of the river or pond is a flat and hard ground, the fixed base 81 is adjusted to the lowest point of the cage fixing rod 8, so that the fixed base 81 ensures the stability of the cage fixing rod 8, thereby ensuring the stability of the capture device as a whole.

[0060] Example 7, a fishery resources survey trapping device, such as Figure 19 As shown, the difference from the fourth and fifth embodiments is that a remote-controlled floating boat 9 floating on the water surface is provided above the trapping cage, and the lower end of the remote-controlled floating boat 9 is fixedly connected to the middle part of the trapping cage by a waterproof connecting rope 15. A waterproof signal line 151 adapted to the waterproof connecting rope 15 is inserted inside the remote-controlled floating boat 9. The placement position of the trapping cage is controlled by the remote-controlled floating boat 9, and the remote-controlled floating boat 9 controls the closing of the trapping cage and monitors the situation through the signal line.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the design concept of the present invention should be included in the scope of protection of the present invention.

Claims

1. A trapping cage for fishery resource survey, comprising a trapping cage, characterized in that: The trapping cage is arranged in a regular polygonal structure. The trapping cage comprises a trapping frame (1) and a trapping top plate (12) and a trapping bottom plate (13) arranged on the upper and lower sides of the trapping frame (1). The side of the trapping frame (1) is provided with a plurality of fixed side plates (14) and a movable side plate (2) movably connected to the trapping frame (1). The trapping top plate (12), the trapping bottom plate (13), the fixed side plate (14) and the movable side plate (2) are all fixedly connected with a trapping net. The number of the movable side plates (2) is set to at least one. The fixed side plate (14) and the trapping frame (1) are fixedly connected to each other. The trapping frame (1) is provided with a trapping inlet (11) adapted to the movable side plate (2). 1) is provided with an opening and closing drive component (3) adapted to the movable side plate (2); the trapping cage is further provided with a control component (4), a monitoring component (5) and a bait throwing component (6) located inside the trapping frame (1); the control component (4) includes a waterproof controller (41) and a waterproof battery pack (42) electrically connected to the controller (41); a wireless communication module (43) connected to a host computer for wireless communication is provided in the controller (41); the controller (41) and the opening and closing drive component (3) are electrically connected to each other; the monitoring component (5) includes an adapted infrared pyroelectric sensor (51) and an underwater camera (52); and a waterproof connecting rope (15) for pulling is bound to the trapping cage.

2. A trapping cage for fishery resource survey according to claim 1, characterized in that: The bait feeding component (6) comprises a discharge pipe (61) and a feeding bait bin (62) connected to the discharge pipe (61); a spiral feeder (63) and bait for feeding adapted to the spiral feeder (63) are arranged in the feeding bait bin (62); the bait for feeding is arranged in a sugar ball-shaped structure; an underwater electromagnetic valve (64) and a bait net cover (65) adapted to the underwater electromagnetic valve (64) are arranged at the end of the discharge pipe (61); the bait net cover (65) is provided with evenly distributed bait through holes, and the aperture of the bait through holes is smaller than that of the bait.

3. A trapping cage for fishery resource survey according to claim 2, characterized in that: The opening and closing drive assembly (3) comprises a support locking block (31) and a movable support rod (32) adapted to the support locking block (31); a locking movable groove (311) adapted to the movable support rod (32) is provided on the support locking block (31); a waterproof driving motor (33) and a telescopic locking tongue (331) adapted to the rotating shaft of the driving motor (33) are provided on one side of the inner wall of the locking movable groove (311); when the telescopic locking tongue (331) is extended, a portion of the movable support rod (32) is engaged; The end of the movable support rod (32) is mutually abutted and connected with the telescopic locking tongue (331); when the telescopic locking tongue (331) is retracted, one end of the movable support rod (32) passes through the locking sliding groove; the other end of the movable support rod (32) is mutually hingedly connected with one end of the movable side plate (2); and a retreat groove (16) adapted to the movable support rod (32) is provided on the trapping frame (1); the movable side plate (2) is mutually hingedly connected with the trapping inlet (11) by setting a hinge part (21); and the hinge part (21) is set as a spring hinge.

4. A trapping cage for fishery resource survey according to claim 2, characterized in that: The opening and closing drive assembly (3) includes a waterproof driving electric cylinder (34) and a movable support rod (32), the movable support rod (32) includes a first movable rod (321) and a second movable rod (322) that are hingedly connected, the driving electric cylinder (34) is fixedly connected to the trapping frame (1) by arranging a driving bracket (341), and the piston rod of the driving electric cylinder (34) is fixedly connected to the first movable rod (321), the end of the second movable rod (322) is hingedly connected to one end of the movable side plate (2), and the other end of the trapping inlet (11) is hingedly connected to the movable side plate (2) by arranging a hinge member (21).

5. The trapping cage for fishery resource survey according to claim 2, characterized in that: The opening and closing drive assembly (3) comprises a waterproof driving motor (33) and a movable rack (23) connected to the left and right sides of the movable side plate (2); the movable side plate (2) slides left and right on the trapping inlet (11); the trapping inlet (11) is provided with a limiting chute (111) on both the upper and lower sides; the movable side plate (2) is fixedly connected with a limiting protrusion (24) adapted to the limiting chute (111); the movable rack (23) and the limiting protrusion (24) are fixedly connected to each other and adapted to the limiting chute (111); a movable gear (332) adapted to the movable rack (23) is fixedly connected to the rotating shaft of the driving motor (33); the movable gear (332) and the movable rack (23) are movably connected to each other by a bite mode.

6. A trapping device for fishery resource survey, comprising a plurality of trapping cages according to any one of claims 1 to 5, characterized in that: The trapping cages are evenly distributed in a vertical or horizontal direction. Two adjacent trapping cages are detachably connected to each other by providing a cage clamping structure (7). The cage clamping structure (7) comprises a first connecting clamping block (71) and a second connecting clamping block (72) adapted to the first connecting clamping block (71). One end of the second connecting clamping block (72) is hingedly connected to the first connecting clamping block (71) by providing a pin shaft, and the other end is detachably connected to the first connecting clamping block (71) by providing a live bolt (73). The first connecting clamping block (71) is provided with a movable clamping groove (711) adapted to the live bolt (73). The first connecting clamping block (71) is provided with a connecting clamping groove (712) adapted to the trapping frame (1).

7. A trapping device for fishery resource survey, comprising a plurality of trapping cages according to any one of claims 1 to 5, characterized in that: A cage fixing rod (8) connected to the trapping cage is provided on one side of the trapping cage, and the trapping cage surrounds the cage fixing rod (8) and is evenly distributed in a spiral shape. A plurality of evenly distributed cage connecting sleeves (74) are sleeved on the cage fixing rod (8), and one end of the cage connecting sleeve (74) is detachably connected to the trapping cage by providing a cage clamping structure (7).

8. The fishery resource survey trapping device according to claim 7, characterized in that: The cage body clamping structure (7) comprises a first connecting block (71) and a second connecting block (72) adapted to the first connecting block (71); the first connecting block (71) and the cage body connecting sleeve (74) are arranged as an integral structure; one end of the second connecting block (72) is hingedly connected to the first connecting block (71) by providing a pin shaft, and the other end is detachably connected to the first connecting block (71) by providing a live bolt (73); a movable slot (711) adapted to the live bolt (73) is provided on the first connecting block (71); and a connecting slot (712) adapted to the trapping frame (1) is provided on the first connecting block (71).

9. The fishery resource survey trapping device according to claim 8, characterized in that: The lower part of the cage fixing rod (8) is sleeved with a fixed base (81) that slides up and down. The fixed base (81) and the cage fixing rod (8) are connected to each other by a threaded manner. The lower bottom surface of the fixed base (81) and the cage fixing rod (8) are arranged perpendicular to each other. The fixed base (81) is embedded with a plurality of counterweight blocks (811) that are compatible with it. The lower end of the cage fixing rod (8) is inserted into the bottom of a river or a pond.

10. A trapping device for fishery resource survey, comprising the trapping cage according to any one of claims 1 to 5, characterized in that: A remote-controlled floating boat (9) floating on the water surface is provided above the trapping cage, and the lower end of the remote-controlled floating boat (9) is fixedly connected to the middle part of the trapping cage via a connecting rope (15), wherein a waterproof signal line (151) adapted to the connecting rope (15) is inserted and provided inside the connecting rope (15).

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