CN115005168A - Net cage device for trapping fishes by large water surface light - Google Patents

Abstract

The invention discloses a cage device for trapping fish with light on a large water surface, comprising a trapping layer and a collection layer arranged at the bottom of the trapping layer. Curved dividers, curved drive plates, trap lights. The light emitted by the trapping light utilizes the phototaxis of fish such as tuna, to lure the phototactic fish to the trapping layer. The arc-shaped driving plate keeps rotating, so that the enclosed space is gradually reduced, so that the fish enter the fish collection port, and then collect In the collection layer, the caught fish are then manually sorted, and a large number of tuna can be caught, so that a large number of fishing can be carried out during the breeding period of the troll, to prevent the tuna from forming a dominant population, and the reservoir is stocked with silver carp. Survival of bighead fry and other small fish.

Description

Net cage device for trapping fishes by large water surface light

Technical Field

The invention relates to the field of net cage devices, in particular to a net cage device for trapping fishes by using lamplight on a large water surface.

Background

The large water surface includes water bodies such as reservoirs and lakes. At present, the major water surface is mainly in an ecological fishery development mode, namely, a fishery mode which depends on natural bait resources to engage in fishery production and maintain the health of an ecological system through the production activity has the core that the bait resources of different groups of water bodies are reasonably utilized on the premise of determining the breeding capacity, and the nutrient substances of the water bodies are converted into high-quality aquatic products, so that the aim of 'breeding water by fishery' is fulfilled. Therefore, the control of the quantity of fishes at different nutrition levels on the large water surface is the key for implementing the ecological fishery.

Culter alburnus (Culter alburnus) is commonly called whitefish, belongs to Cyprinaceae, Erythroculter subfamily and Erythroculter, and prefers to eat small fishes in the middle and upper layers. Although the resource quantity declines in natural rivers, in large-water-surface water such as reservoirs and the like, the topmouth culter forms dominant populations in many reservoirs such as the three gorges reservoir and the Wuqiangxi reservoir due to the fact that natural enemies do not exist and the bait resources are rich. The number of carnivorous fishes is dominant, so that the development of ecological fishery in large-water-surface water is not favorable, and the number of silver carp fries and other small fishes in the reservoir can be influenced. Therefore, the directionally catching of the topmouth culter ilishaeformis which forms advantages needs to be carried out on the topmouth culter ilishaeformis in large water surface water.

The existing fishing device for large water surfaces such as reservoirs and the like basically adopts a combined fishing method of 'blocking and stinging', and the fishing mode is mainly used for large-size fishes such as silver carps, bighead carps and the like of the reservoirs and is famous for the fishing of a huge net in a thousand island lake; other fishing modes mainly use the gill net, the fishing efficiency is too low, the gill net is not screened, the gill net is not used for targeted fishing, other fishes are also very easy to fish, meanwhile, the later-stage sorting workload is large, in the fishing process, the fishing net is not used for trapping, so that the fishes are easy to escape, the firmness of the fishing net is too poor, and the gill net is not suitable for long-term fishing. Therefore, a special fishing net suitable for carnivorous fishes such as large topmouth culter and the like needs to be developed.

Disclosure of Invention

The invention aims to solve the problems in the background art and provides a net cage device for trapping fishes by using light on a large water surface.

The technical purpose of the invention is realized by the following technical scheme:

a net cage device for trapping fishes with large water surface lamplight comprises a trapping layer and a collecting layer arranged at the bottom of the trapping layer, wherein the trapping layer comprises a trapping shell, a bottom plate, a rotary cover plate, arc-shaped partition plates, an arc-shaped driving plate and a trapping lamp which are hollow inside, the bottom plate is arranged at the bottom of the trapping shell and fixedly connected with the inner side wall of the trapping shell, a shoal collecting port is formed in the middle of the bottom plate, a plurality of shoal inlets are formed in the side wall of the trapping shell, the shoal inlets are circumferentially and uniformly distributed on the side wall of the trapping shell, the arc-shaped partition plates are circumferentially and uniformly distributed on the top surface of the bottom plate, one shoal inlet is formed between every two adjacent arc-shaped partition plates, the rotary cover plate is arranged at the top opening of the trapping shell, the arc-shaped driving plate is arranged at the bottom of the rotary cover plate, and the arc-shaped driving direction of the arc-shaped driving plate is opposite to the arc-shaped direction of the arc-shaped partition plates, the trapping lamp is arranged in the middle of the bottom plate. Utilize the phototaxis of fishes such as culter alburnus through the light that traps the lamp and give off, lure the fish of phototaxis to trapping the layer, can be maximum dynamics trap to the culter alburnus, the pertinence is stronger, later enter into to trapping the casing through the shoal of fish entry, rotatory apron is slowly rotatory, it is rotatory to drive the arc and drive the board, at rotatory in-process, make the arc drive the board and form the enclosure space with the arc division board, because the arc drives the board and is rotating always, make the enclosure space reduce gradually, make the fish enter into the shoal of fish and collect the mouth, later collect in the collection in situ, later carry out manual sorting with the fish of catching, can catch a large amount of culter alburnus culter, make when the reproduction period of culter alburnus is upuloides, prevent to upus alburnus aristolochia from forming advantage population, produce the influence to the survival rate of putting and breeding chub bighead carp fry and other small-size fishes.

Because the arc drives the slow rotation of board for the arc drives the closed space that board and arc division board formed and can dwindle slowly, can not produce the frightening to the fish thereby improves fishing efficiency.

The layer of traping of present case is above, and the collecting layer is in the below for the fish that gets into behind the layer of traping can't escape, makes the collecting layer area of collecting the fish bigger, can once only catch more fishes, improves and catches efficiency.

Preferably, the arc-shaped partition plate is formed by arranging more than three partition blocks in an arc-shaped track, a passing gap is formed between every two adjacent partition blocks, the arc-shaped driving plate is formed by arranging more than three driving blocks in an arc-shaped track, the driving blocks and the partition blocks pass through the arc-shaped track in a staggered manner one by one, the driving blocks can pass through the passing gap, and the arc-shaped partition plate is prevented from blocking the rotation of the arc-shaped driving plate.

Preferably, the collection layer is including establishing the collecting vat of traping the casing bottom, be covered with the sieve mesh on the collecting vat, trape the casing the lid with the sieve mesh is also fully covered to the anticreep board, can make the less fish of volume freely come in and go out through the sieve mesh, reduces the probability of mistake catching, reduces the letter sorting work in later stage.

Preferably, rotatory apron is including lid, rotation axis, rotating electrical machines establishes the bottom of collecting vat, the one end of rotation axis with rotating electrical machines's output fixed connection, its other end with the bottom fixed connection of lid, rotating electrical machines for can be at the motor of the low work of water, such as submersible motor, through rotating electrical machines's rotation to the rotation of lid, thereby drive the arc and drive the board and carry out rotation work.

Meanwhile, in order to enhance the waterproof performance, a waterproof cover can be additionally arranged on the outer side of the rotating motor, so that the waterproof performance is improved.

Preferably, the trapping lamp is including fixed disk, lamp body, the mounting hole has been seted up in the middle part of fixed disk, the mounting hole with the lateral wall fixed connection of rotation axis, be equipped with the trapping lamp mounting hole more than three around the fixed disk mounting hole, the bottom of lamp body is equipped with rotatory piece, the inside wall of trapping lamp mounting hole is seted up there is the internal thread, the external screw thread has been seted up to the lateral wall of rotatory piece, and what this case lamp body adopted is current trapping lamp, is prior art, consequently does not give unnecessary details at the present case, through the rotatory piece of lamp body and the threaded connection who traps the lamp mounting hole, can fix lamp body detachable on the fixed disk to can place the quantity and the kind of trapping lamp as required, make the box with a net device suitability of this case more extensive.

Preferably, the part of the rotating shaft, which is located at the shoal collecting port, is sleeved with a fish attracting food placing frame, the fish attracting food placing frame comprises a fixed disc, the fixed disc is fixedly connected with the side wall of the rotating shaft through a bearing, iron wire net placing frames are distributed on the side wall of the fixed disc in a circumferential array mode, and each two iron wire net placing frames correspond to one shoal inlet. Place the frame through the wire netting and can place attracting the fish food into the wire netting and place the frame in, thereby attract the fish that will catch, simultaneously will attract the fish food rack to place in shoal collecting port department, can attract the fish that need catch to collect to shoal collecting port removal, thereby better fall into to collecting the in situ, can increase the probability of catching and can stick up the mouth culter, strengthen and trap the effect, make the fish that catches simultaneously probably of the kind few, be convenient for reduce the letter sorting work in later stage, efficiency is catched in the improvement.

In order to catch the culter alburnus, some fish luring foods which attract the culter alburnus, such as foods liked by the culter alburnus, such as tender corns, earthworms, loaches and the like, can be placed.

Simultaneously, through the holes of the wire netting, the fragrance of the fish bait can be better diffused into water to attract the fish to be caught.

Preferably, the trapping housing is fixedly connected with a first mounting lug on the opposite side wall, the collecting tank is fixedly connected with a second mounting lug opposite to the first mounting lug, through holes are formed in the positions, opposite to the second mounting lug, of the first mounting lug, bolts penetrate through the through holes, and nuts are connected to the bottoms of the bolts through threads. Pass two installation ears through the bolt, then fix with the nut, can assemble the collecting vat with traping the casing and the dismantlement in later stage.

Preferably, both sides fixedly connected with lug that trap the casing top is relative can hoist the box with a net device through the lug, is fit for the use of the big surface of water, also cooperates the hoisting device in later stage simultaneously, can catch the fish of the different degree of depth.

Preferably, the inner diameter of the fish school inlet is gradually reduced in a direction toward the inside of the trap housing, so that fish can be prevented from swimming backwards.

Preferably, the part cover that the rotation axis is located the shoal of fish is collected the mouth is established and is fixed with and prevents escaping the board, prevent escaping the board and be located lure the below of fish food rack, prevent escaping to have seted up fan-shaped breach on the board, fan-shaped breach along the circumferencial direction of lid with the crisscross 1/2's of board distance is driven to the arc. When making the lid rotatory through preventing escaping the board, the area prevents escaping the board and rotates together, drives the board and forms the enclosure space with the arc division board when the arc, and the fish enters into fan-shaped breach, drives the board when rotatory to next arc division board when the arc, and fan-shaped breach also removes to next position to collect the collecting vat to the bottom with the fish, prevent that the fish of collecting from shoal of fish collecting mouth once more and swim to trapping the layer.

Preferably, the sieve pores are uniformly distributed on the escape-proof plate and matched with the collecting tank, the trapping shell, the bottom plate and the sieve pores of the cover plate, so that small fish can freely move in the net cage device, the small fish is prevented from entering the net cage device and then being incapable of escaping into fish food of big fish, the fishing of the small fish is reduced to the maximum extent, the targeted fishing can be carried out, and the benefit brought by the fishing is enhanced.

Preferably, the top of trapping lamp is equipped with the toper and keeps off the cover, the toper keeps off the cover and establishes just be located on the lateral wall of rotation axis prevent escaping the below of board, a plurality of astigmatism hole has been seted up on the toper keeps off the cover, keeps off the cover through the toper and can prevent to go into to trapping lamp from the fish card that shoal of fish collection mouth department dropped, can be better distribute light to aquatic through astigmatism hole.

In conclusion, the invention has the beneficial effects that:

1. the method comprises the steps of attracting phototaxis fishes to an trapping layer by utilizing phototaxis of the fishes such as the culter alburnus and the like through light emitted by the trapping lamp, trapping the culter alburnus to the maximum degree, entering the trapping shell through a fish school inlet, slowly rotating a rotating cover plate to drive an arc-shaped driving plate to rotate, enabling the arc-shaped driving plate and an arc-shaped separation plate to form a closed space in the rotating process, enabling the closed space to be gradually reduced due to the fact that the arc-shaped driving plate rotates all the time, enabling the fishes to enter a fish school collecting port, then collecting the fishes in the collecting layer, and then manually sorting the caught fishes to catch a large number of culters alburnus, so that a large number of catching can be carried out during the reproduction period of the culter alburnus, the situation that the culter alburnus forms dominant species is prevented, and the survival rate of the silver carp fry and other small fishes cultured in a reservoir is influenced;

2. according to the invention, through the slow rotation of the arc-shaped driving plate, the closed space formed by the arc-shaped driving plate and the arc-shaped partition plate can be slowly reduced, and fish can not be frightened, so that the fishing efficiency is improved;

3. according to the fish attracting device, the fish attracting food can be placed into the wire netting placing frame through the wire netting placing frame, so that fishes needing to be caught are attracted, meanwhile, the fish attracting food placing frame is placed at the fish school collecting opening, so that the fishes needing to be caught can be attracted to move towards the fish school collecting opening, the fishes can fall into the collecting layer better, and the trapping effect is enhanced;

4. according to the fish catching device, the anti-escape plate is driven to rotate when the cover body rotates through the anti-escape plate, when the arc-shaped driving plate and the arc-shaped partition plate form a closed space, fish enter the fan-shaped notch, and when the arc-shaped driving plate rotates to the next arc-shaped partition plate, the fan-shaped notch also moves to the next position, so that the fish are collected to the collecting tank at the bottom, and the collected fish are prevented from migrating to the trapping layer from the fish school collecting port again to influence the catching effect;

5. the sieve holes are uniformly distributed on the escape-proof plate and matched with the sieve holes of the collecting tank, the trapping shell, the bottom plate and the cover plate, so that small fishes can freely move in the net cage device, the small fishes are prevented from being incapable of escaping into fish food of big fishes after entering the net cage device, the fishing of the small fishes is reduced to the maximum extent, the targeted fishing can be carried out, and the benefits brought by the fishing are enhanced.

Drawings

FIG. 1 is a general schematic of the present invention;

FIG. 2 is a schematic view of the present invention with the cover removed;

FIG. 3 is a schematic view of the invention with no enclosed space formed between the arcuate divider plate and the arcuate expelling plate;

FIG. 4 is a schematic view of the invention after a closed space is formed between the arc-shaped partition plate and the arc-shaped driving plate;

FIG. 5 is a schematic cross-sectional view of the present invention;

FIG. 6 is an enlarged schematic view at A of FIG. 5 of the present invention;

FIG. 7 is a schematic view of a trap light of the present invention;

fig. 8 is a schematic view of the driving block of the present invention on the cover.

Detailed Description

The following specific examples are given by way of illustration only and not by way of limitation, and it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made in the examples without inventive faculty, and yet still be protected by the scope of the claims.

The present invention will be described in detail below by way of examples with reference to the accompanying drawings.

Examples

As shown in fig. 1-8, a net cage device for trapping fish with large water surface light comprises a trapping layer 1 and a collecting layer 2 arranged at the bottom of the trapping layer 1, wherein the collecting layer and the trapping layer are made of hard materials and are not easy to break, the trapping layer 1 comprises a trapping shell 11 with a hollow inner part, a bottom plate 12, a rotating cover plate 13, an arc-shaped partition plate 14, an arc-shaped driving plate 15 and a trapping lamp 16, the bottom plate 12 is arranged at the bottom of the trapping shell 11 and fixedly connected with the inner side wall of the trapping shell 11, a fish school collecting port 17 is arranged at the middle part of the bottom plate 12, a plurality of fish school inlets 111 are arranged on the side wall of the trapping shell 11, the fish school inlets 111 are circumferentially and uniformly distributed on the side wall of the trapping shell 11, the arc-shaped partition plates 14 are circumferentially and uniformly distributed on the top surface of the bottom plate 12, one fish school inlet 111 is arranged between every two adjacent arc-shaped partition plates 14, the rotary cover plate 13 is arranged at the top opening of the trapping shell body 11, the arc driving plate 15 is arranged at the bottom of the rotary cover plate 13, the arc driving plate 15 has an arc opening opposite to the arc opening of the arc separation plate 14, the trapping lamp 16 is arranged at the middle part of the bottom plate 12, the arc separation plate 14 is formed by arranging more than three separation blocks 141 along an arc track, a crossing gap 142 is formed between every two adjacent separation blocks 141, the arc driving plate 15 is formed by arranging more than three driving blocks 151 along an arc track, the driving blocks 151 pass through the separation blocks 141 in a staggered manner, the collection layer 2 comprises a collection groove 21 arranged at the bottom of the trapping shell body 11, the collection groove 21 is fully distributed with sieve holes 22, the rotary cover plate 13 comprises a cover body 131, a rotary shaft 132 and a rotary motor 133, the rotary motor 133 is arranged at the bottom of the collection groove 21, one end of the rotating shaft 132 is fixedly connected with the output end of the rotating motor 133, the other end of the rotating shaft is fixedly connected with the bottom of the cover 131, the opposite side wall of the trapping housing 11 is fixedly connected with a first mounting lug 112, the collecting trough 21 is fixedly connected with a second mounting lug 211 opposite to the first mounting lug 112, the positions of the first mounting lug 112 and the second mounting lug 211 opposite to each other are respectively provided with a through hole, a bolt 212 penetrates through the through holes, the bottom of the bolt 212 is in threaded connection with a nut 213, the two opposite sides of the top of the trapping housing 11 are fixedly connected with lifting lugs 110, the inner diameter of the fish school inlet 111 is gradually reduced along the direction towards the inner side of the trapping housing 11, the part of the rotating shaft 132, which is located at the fish school collecting port 17, is fixedly provided with an anti-escape plate 19, and the anti-escape plate 19 is located below the fish-luring placing rack 18, the escape-preventing plate 19 is provided with a sector-shaped notch 191, and the sector-shaped notch 191 is separated from the arc-shaped driving plate 15 by a distance of 1/2 along the circumferential direction of the cover body 131.

As shown in fig. 7, the trap lamp 16 includes a fixed disk 161 and a lamp body 162, a mounting hole is provided in the middle of the fixed disk 161, the mounting hole is fixedly connected to the side wall of the rotating shaft 132, the trap lamp mounting hole 163 is provided with three or more parts around the mounting hole of the fixed disk 161, the bottom of the lamp body 162 is provided with a rotating block 164, an internal thread is provided on the inner side wall of the trap lamp mounting hole 163, an external thread is provided on the outer side wall of the rotating block 164, a conical cover 165 is provided at the top of the trap lamp 16, the conical cover 165 is provided on the side wall of the rotating shaft 132 and located below the escape-proof plate 19, and a plurality of light scattering holes 166 are provided on the conical cover 165.

As shown in fig. 4-5, a fish attracting food placing frame 18 is sleeved on a portion of the rotating shaft 132, which is located at the shoal collecting port 17, the fish attracting food placing frame 18 includes a fixed disc 181, the fixed disc 181 is fixedly connected with a side wall of the rotating shaft 132 through a bearing, wire net placing frames 182 are circumferentially distributed on the side wall of the fixed disc 181 in an array manner, and a shoal inlet 111 corresponds to every two wire net placing frames 182.

The working principle is as follows: as shown in fig. 1-8, when catching the culter alburnus, fish-attracting food such as loach is placed in the wire net placing frame 182, the net cage device is lifted into water by the lifting lugs 110, the fish-attracting lamp 162 is turned on, then the rotating motor 133 rotates slowly, fish such as the culter alburnus are influenced by light and food and move to the vicinity of the net cage device, then enter the trapping housing 11 through the fish school inlet 111, the rotating cover plate 13 rotates slowly to drive the arc-shaped driving plate 15 and the escape-proof plate 19 to rotate, during the rotation process, the arc-shaped driving plate 15 and one of the arc-shaped partition plates 14 form a closed space, because the arc-shaped driving plate 15 rotates all the time, the closed space is gradually reduced, the fish enters the fan-shaped gap 191 of the escape-proof plate and then falls into the collecting tank 21 at the bottom, and then the arc-shaped driving plate 15 and the next arc-shaped partition plate 14 form a closed space, make the fish enter into the fan-shaped breach 191 of anti-escape plate, later fall into to the collecting vat 21 of bottom in, the rotation is catched in repetition always, some little fishes can enter into to the aquatic through the sieve mesh, leave fish such as adult culter alburnus, later hang up the box with a net device, the fish that will catch carries out artifical letter sorting, catch the large-scale culter alburnus in reproductive phase, put off other unnecessary fishes, can catch a large amount of culter alburnus, make when the culter alburnus reproductive phase of alburnus, can catch a large amount of fishes, prevent that alburnus from forming the advantage population, put the survival rate of breeding silver carp bighead carp fry and other small-size fishes in the reservoir and exert an influence.

Claims (10)

1. A cage device for trapping fish with light on a large water surface, characterized in that it comprises a trapping layer (1) and a collection layer (2) arranged at the bottom of the trapping layer (1), the trapping layer (1) comprising There is a trapping shell (11) with a hollow inside, a bottom plate (12), a rotating cover plate (13), an arc-shaped partition plate (14), an arc-shaped driving plate (15), and a trapping lamp (16), and the bottom plate ( 12) Set at the bottom of the trapping shell (11) and fixedly connected to the inner side wall of the trapping shell (11), a fish collection port (17) is opened in the middle of the bottom plate (12), and the A plurality of fish school inlets (111) are opened on the side wall of the trapping shell (11), the fish school inlets (111) are uniformly distributed on the side wall of the trapping shell (11), and the arc-shaped The partition plates (14) are uniformly distributed on the top surface of the bottom plate (12) in a circumferential manner, and one of the fish school inlets (111) is arranged between every two adjacent arc-shaped partition plates (14). A rotating cover plate (13) is arranged at the top opening of the trapping shell (11), the arc-shaped driving plate (15) is arranged at the bottom of the rotating cover (13), and the arc-shaped driving plate (15) is arranged at the bottom of the rotating cover plate (13). The arc opening direction of 15) is opposite to the arc opening direction of the arc-shaped partition plate (14), and the trapping light (16) is arranged in the middle of the bottom plate (12). 2 . The cage device for trapping fish with light on a large water surface according to claim 1 , wherein the arc-shaped partition plate ( 14 ) consists of three or more partition blocks ( 141 ) in an arc-shaped trajectory. 3 . Arranged, a crossing gap (142) is formed between every two adjacent partition blocks (141), and the arc-shaped driving plate (15) is formed by arranging more than three driving blocks (151) in an arc-shaped trajectory , the driving block (151) is interleaved with the separating block (141) one by one. 3 . The cage device for trapping fish with light on a large water surface according to claim 1 , wherein the collection layer ( 2 ) comprises a collection groove ( 21), the collecting tank (21) and the trapping shell (11) are all covered with sieve holes (22). 4 . The cage device for trapping fish with light on a large water surface according to claim 3 , wherein the rotating cover plate ( 13 ) comprises a cover body ( 131 ), a rotating shaft ( 132 ), and a rotating motor. 5 . (133), the rotating motor (133) is arranged at the bottom of the collecting tank (21), one end of the rotating shaft (132) is fixedly connected to the output end of the rotating motor (133), and the other end is The bottom of the cover body (131) is fixedly connected. 5 . The cage device for trapping fish with light on a large water surface according to claim 4 , wherein the trapping light ( 16 ) comprises a fixing plate ( 161 ) and a lamp body ( 162 ), and the fixing A mounting hole is opened in the middle of the disk (161), the mounting hole is fixedly connected with the side wall of the rotating shaft (132), and three or more trapping lamp mounting holes ( 163), the bottom of the lamp body (162) is provided with a rotating block (164), the inner side wall of the trapping light installation hole (163) is provided with an inner thread, and the outer side wall of the rotating block (164) is provided with an outer thread thread. 6 . The cage device for trapping fish with light on a large water surface according to claim 4 , wherein the part of the rotating shaft ( 132 ) located at the fish collection port ( 17 ) is sleeved with food for attracting fish. 7 . A rack (18), the fish attracting food placing rack (18) includes a fixed disk (181), the fixed disk (181) is fixedly connected with the side wall of the rotating shaft (132) through a bearing, and the fixed disk (181) is Barbed wire placement frames (182) are distributed in a circumferential array on the side wall of the tray (181), and each two barbed wire placement frames (182) corresponds to a fish school inlet (111). 7 . The cage device for trapping fish with light on a large water surface according to claim 4 , wherein the first mounting ears ( 112 ) are fixedly connected to the opposite side walls of the trapping shell ( 11 ). 8 . A second installation ear (211) opposite to the first installation ear (112) is fixedly connected to the collection groove (21), and the first installation ear (112) and the second installation ear (211) Through holes are provided at opposite positions, and bolts (212) pass through the through holes, and nuts (213) are threadedly connected to the bottoms of the bolts (212). 8 . The cage device for trapping fish with light on a large water surface according to claim 6 , wherein the part of the rotating shaft ( 132 ) located at the fish collection port ( 17 ) is sleeved and fixed with a preventer. 9 . An escape plate (19), the anti-escape plate (19) is located below the fish-baiting food placement rack (18), and a fan-shaped gap (191) is formed on the anti-escape plate (19), and the fan-shaped gap ( 191) The arc-shaped driving plate (15) is staggered by a distance of 1/2 along the circumferential direction of the cover body (131). 9 . The cage device for trapping fish with light on a large water surface according to claim 8 , wherein the top of the trapping light ( 16 ) is provided with a conical blocking cover ( 165 ), and the conical blocking A cover (165) is sleeved on the side wall of the rotating shaft (132) and is located below the anti-escape plate (19). . 10 . The cage device for trapping fish with light on a large water surface according to claim 1 , wherein the inner diameter of the fish inlet ( 111 ) gradually decreases along the direction toward the inside of the trapping shell ( 11 ). 11 . .

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