A fishing device for identifying leopard catfish with counting function

Abstract

The present invention provides a leopard catfish catching device with a counting function, and relates to the field of fishing. The leopard catfish catching device with a counting function comprises a base and a counter fixed on the base, a box body is fixedly installed on one side of the base, a cage playing a guiding role is fixedly installed on one side of the box body, two symmetrical arc plates are installed inside the cage, and a rotating rod in the arc plate is rotatably connected with the cage; the leopard catfish catching device with a counting function can classify and catch fish of different sizes and collect them separately, the leopard catfish mainly eats small fish, and generally does not eat fish of the same volume, thereby reducing the probability of death of other fish, and can count according to the large fish caught, so as to facilitate timely checking of the number of large fish caught, thereby reducing the probability of other large fish being trapped for a long time and being eaten by the leopard catfish and dying.

Description

Technical Field

[0001] The invention relates to the field of fishing, in particular to a fishing device for identifying leopard catfish with a counting function. Background Art

[0002] Fishing is not only an important way to obtain food, but also promotes social development to a certain extent. There are many existing fishing devices, such as cage trapping devices. Cage trapping devices are usually containers with openings made of materials such as bamboo, wire or plastic. They have various shapes, such as round, square, etc. Bait is usually placed inside the fish cage. The smell of the bait will attract fish or other aquatic organisms to enter the fish cage. The opening of the fish cage is generally provided with a special design, such as a funnel-shaped entrance, which makes it difficult for the fish to find the exit. When the fish is attracted to the bait and enters the fish cage, due to the internal structure of the fish cage and the limitation of the opening, the fish cannot escape. This method is suitable for catching benthic organisms such as shrimps and crabs and some small fish, such as catfish. Leopard catfish occupies a certain position in the aquatic ecosystem. They are omnivorous fish and play a connecting role in the food chain.

[0003] Traditional cage trapping devices are mainly composed of a metal frame and nylon mesh. The overall structure is a box or cage with an opening. Bait is placed inside to attract leopard catfish, and the fish's feeding habits are used to lure them into the cage. However, this traditional cage trapping method cannot check the number of leopard catfish captured. If leopard catfish and other fish are trapped for a long time, the probability of death of other fish will easily increase. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a fishing device for identifying leopard catfish with a counting function, which solves the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a catching device for identifying leopard catfish with counting function, comprising a base and a counter fixed on the base, a box body fixedly installed on one side of the base, a cage playing a guiding role fixedly installed on one side of the box body, two symmetrical arc plates installed inside the cage, a rotating rod in the arc plate is rotatably connected to the cage, an L-shaped adjusting rod is fixedly connected to one end of the rotating rod, a telescopic mechanism is installed between the two adjusting rods, a fixed sleeve is fixedly installed at the cage, a long strip is slidably connected in the fixed sleeve, a moving part and a mounting head are fixedly connected at both ends of the long strip, the moving part is in contact with the telescopic mechanism, a pawl A is hinged inside the mounting head, a spring is fixedly connected between the mounting head and the moving part, a ratchet assembly is installed at the bottom of the cage, the pawl A is used to push the ratchet A of the ratchet assembly to rotate, a rotating assembly for unidirectional rotation is installed on the rotating rod of the ratchet assembly, and the rotating shaft of the rotating assembly is fixedly connected to the counting shaft of the counter.

[0006] A V-shaped opening is arranged inside the box body, and the box body is used to install a fish cage net to prevent fish from escaping. An inclined baffle is rotatably installed inside the box body, and the baffle contacts one side of the V-shaped opening. An inner rod in the baffle is rotatably connected to the box body, and the rotating rod controls the rotation of the inner rod through a transmission mechanism.

[0007] Preferably, the entrance width of the cage is greater than the width of the leopard catfish.

[0008] Preferably, the box body further comprises an outlet A and an outlet B, and both outlet A and outlet B are used for installing a fish cage net.

[0009] Preferably, the telescopic mechanism comprises two connecting heads, a straight tube and two inserting strips, the two adjusting rods are rotatably connected to the two connecting heads respectively, the two connecting heads are fixedly connected to the two inserting strips respectively, and the two inserting strips are slidably connected to the two straight tubes respectively.

[0010] Preferably, when the two arc-shaped plates rotate to a maximum stroke, they come into contact with the cage and stop rotating.

[0011] Preferably, a protective net is installed on the box.

[0012] Preferably, the ratchet assembly further comprises a fixed block A, a disc and a torsion spring, the fixed block A is fixed to the cage, the disc is fixed to the rotating rod, the rotating rod is rotatably connected to the fixed block A, and both ends of the torsion spring are fixed to the disc and the fixed block A respectively.

[0013] Preferably, the rotating assembly further comprises a ratchet wheel B, a pawl B and a rocker arm, the pawl B is adapted to the ratchet wheel B, the pawl B is rotationally connected to the rocker arm via a rotating shaft, and the rocker arm is fixed to the rotating shaft.

[0014] Preferably, the transmission mechanism includes a fixed block B, a bevel gear A, a bevel gear B, a connecting rod and two synchronous wheels. The fixed block B is fixed to the cage, the connecting rod passes through the fixed block B and is rotatably connected to the fixed block B, the two ends of the connecting rod are respectively fixed to the bevel gear B and one of the synchronous wheels, the other synchronous wheel is fixed to the inner rod, the two synchronous wheels are connected by a multi-groove belt drive, the bevel gear A is meshingly connected to the bevel gear B, and the bevel gear A is fixedly connected to the rotating rod.

[0015] Preferably, the cage is provided with a lifting lug, and the lifting lug is used for connecting a traction rope.

[0016] Compared with the prior art, the present invention has the following beneficial effects: through the provided cage and the two arc-shaped plates, leopard catfish of different sizes can be caught; for adult leopard catfish, which is relatively large in size, the arc-shaped plates will be opened when swimming through the cage; when both arc-shaped plates are opened, a counter will increase a value, and the baffle will rotate from one inclined surface of the V-shaped opening to the other inclined surface, so as to guide the fish to swim to the fish cage net at the exit B, so as to catch the adult leopard catfish and other fish of similar size; when the juvenile leopard catfish and other fish of smaller size than the adult leopard catfish enter the opening of the cage, the baffle will return to the original position, and these smaller fish will be classified and collected through the exit A; when the counter reaches a predetermined value, the position of the arc-shaped plates will be locked, so that other adult leopard catfish cannot pass through, so as to facilitate timely checking of the number of caught fish and avoid the death of good fish caused by being trapped for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a front view of the overall structure of the present invention;

[0019] Figure 3 It is a cross-sectional view of the side view of the box body and the baffle of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the arc plate and telescopic mechanism of the present invention;

[0021] Figure 5 It is a schematic diagram of the transmission mechanism structure of the present invention;

[0022] Figure 6 It is a side view of the rotating assembly of the present invention;

[0023] Figure 7 It is a schematic diagram of the structure of the rotating assembly and the counter of the present invention;

[0024] Figure 8 A cross-sectional view of a schematic structural diagram of the present invention before the pawl moves;

[0025] Fig. 9 This is a schematic diagram of the structure of one of the connectors of the present invention when it is moved under force;

[0026] Fig.10 It is a schematic diagram of the structure when the two connectors of the present invention are both moved under force.

[0027] Among them: 1. Base; 2. Counter; 3. Box; 301. V-shaped opening; 302. Outlet A; 303. Outlet B; 4. Cage; 5. Curved plate; 6. Adjustment rod; 7. Telescopic mechanism; 701. Connector; 702. Straight tube; 703. Insert; 8. Fixed sleeve; 9. Strip; 10. Moving part; 11. Mounting head; 12. Ratchet A; 13. Spring; 14. Ratchet assembly; 141. Rotating rod; 142. Fixed block A; 143, disc; 144, torsion spring; 15, rotating assembly; 151, rotating shaft; 152, ratchet B; 153, pawl B; 154, rocker arm; 16, baffle; 17, rotating rod; 18, inner rod; 19, protective net; 20, transmission mechanism; 201, fixed block B; 202, bevel gear A; 203, bevel gear B; 204, connecting rod; 205, synchronous wheel; 21, lifting ear; 22, ratchet A. DETAILED DESCRIPTION

[0028] like Figure 1-Figure 10As shown, a device for identifying leopard catfish with counting function comprises a base 1 and a counter 2 fixed on the base 1, a box 3 is fixedly installed on one side of the base 1, the box 3 also comprises an outlet A302 and an outlet B303, the outlet A302 is used to install a fish cage net, the outlet A302 and the outlet B303 are both used to install the fish cage net, a protective net 19 is installed on the box 3 to prevent the catfish at the box 3 from escaping, a cage 4 for guiding is fixedly installed on one side of the box 3, the inlet width of the cage 4 is greater than the width of the leopard catfish, a lifting ear 21 is installed on the cage 4, the lifting ear 21 is used to connect the traction rope, and two symmetrical arc plates 5 are installed inside the cage 4, which are rotated to the maximum stroke with the cage The cage 4 contacts and stops rotating, the rotating rod 17 in the arc plate 5 is rotatably connected with the cage 4, the arc plate 5 is fixedly connected with the rotating rod 17, one end of the rotating rod 17 is fixedly connected with an L-shaped adjusting rod 6, a telescopic mechanism 7 is installed between the two adjusting rods 6, the telescopic mechanism 7 includes two connecting heads 701, a straight tube 702 and two inserts 703, the two adjusting rods 6 are rotatably connected with the two connecting heads 701 respectively, the two connecting heads 701 are fixedly connected with the two inserts 703 respectively, the two inserts 703 are slidably connected with the two straight tubes 702 respectively, when one of the adjusting rods 6 rotates, it is ensured that the telescopic mechanism 7 can be tilted to avoid interference, a fixed sleeve 8 is fixedly installed at the cage 4, a long strip 9 is slidably connected in the fixed sleeve 8, and the long strip 9 are respectively fixedly connected with a moving part 10 and a mounting head 11 at both ends, one end of the moving part 10 is in an arc shape, the moving part 10 is in contact with the telescopic mechanism 7, a ratchet A12 is hinged inside the mounting head 11, a spring 13 is fixedly connected between the mounting head 11 and the moving part 10, and the spring 13 is in a natural state. A ratchet assembly 14 is installed at the bottom of the cage 4, and the ratchet assembly 14 also includes a fixed block A142, a disc 143 and a torsion spring 144. The fixed block A142 is fixed to the cage 4, the disc 143 is fixed to the rotating rod 141, and the rotating rod 141 is rotatably connected to the fixed block A142. The two ends of the torsion spring 144 are respectively fixed to the disc and the fixed block A142. When the ratchet A22 is rotated under force, the torsion spring 144 begins to accumulate force and is not affected by When the force is applied, the elastic force of the torsion spring 144 is used to reset, and the pawl A12 is used to push the ratchet A22 of the ratchet assembly 14 to rotate. A rotating assembly 15 for unidirectional rotation is installed on the rotating rod 141 of the ratchet assembly 14. The rotating assembly 15 also includes a ratchet B152, a pawl B153 and a rocker arm 154. The pawl B153 is adapted to the ratchet B152. The pawl B153 is rotatably connected to the rocker arm 154 through a rotating shaft. The rocker arm 154 is fixed to the rotating shaft 151. The rotating shaft 151 of the rotating assembly 15 is fixedly connected to the counting shaft of the counter 2. When the larger leopard catfish swims through the two arc plates 5, the two arc plates 5 rotate, and the pawl A12 will push the ratchet A22 to rotate, and the counter 2 will increase a count value.

[0029] A V-shaped opening 301 is provided inside the box body 3. The box body 3 is used to install a fish cage net to prevent fish from escaping. An inclined baffle 16 is rotatably installed inside the box body 3. The baffle 16 contacts one side of the V-shaped opening 301. The inner rod 18 in the baffle 16 is rotatably connected to the box body 3. The baffle 16 is fixed to the inner rod 18. The rotating rod 141 controls the rotation of the inner rod 18 through the transmission mechanism 20. The transmission mechanism 20 includes a fixed block B201, a bevel gear A202, a bevel gear B203, a connecting rod 204 and two synchronous wheels 205. The fixed block B201 is fixed to the cage 4. The connecting rod 204 passes through the fixed block B201 and rotates with the fixed block B201. The two ends of the connecting rod 204 are respectively fixed to the bevel gear B203 and one of the synchronous wheels 205, and the other synchronous wheel 205 is fixed to the inner rod 18. The two synchronous wheels 205 are connected by a multi-groove belt transmission. The bevel gear A202 is meshed with the bevel gear B203. The bevel gear A202 is fixedly connected to the rotating rod 141. When the ratchet A22 drives the rotating rod 141 to rotate, the bevel gear A202 can also be rotated, so that the bevel gear A202, the bevel gear B203, the connecting rod 204, the two synchronous wheels 205 and the multi-groove belt work together to make the inner rod 18 drive the baffle 16 to rotate to adjust the position of the baffle 16.

[0030] When in use, the cage 4 is installed with the external traction rope and the lifting ear 21, and then the whole is placed in the river through the traction rope. The size of the cage 4 should be larger than the size of the adult leopard catfish, so that the leopard catfish can enter the cage 4. The cage 4 can be placed with baits for luring the leopard catfish, such as strong fishy baits and fishy granular baits, so that the leopard catfish can enter the cage 4. The cage 4 plays a guiding role for the leopard catfish. When the leopard catfish enters the cage 4, the size of the cage 4 should only allow a single adult leopard catfish to pass through. It should be noted that the leopard catfish is elongated and laterally flattened, semi-cylindrical, and has a flat abdomen. The front of the head of the adult fish to be caught is quite laterally flattened, and the back of the head behind the eyes is a two-leaf semicircular protrusion with a concave groove in the center; Figure 8As shown, when the leopard catfish swims along, the protruding parts on both sides and the fins behind the head will push the two arc plates 5 to rotate slightly until the two arc plates 5 collide with the inner side of the cage 4 and stop rotating. When the two arc plates 5 rotate, they will respectively drive the two rotating rods 17 to rotate, and the two rotating rods 17 will respectively drive the two adjusting rods 6 to rotate. The two adjusting rods 6 work together and drive the telescopic mechanism 7 to move in the direction close to the ratchet A22. The straight tube 702 of the telescopic mechanism 7 drives the moving part 10 to move, and the moving part 10 drives the long strip 9 to move. The long strip 9 drives the mounting head 11 and the ratchet pawl A12 to move in the direction close to the ratchet A22. When the ratchet pawl A12 conflicts with the ratchet A22 and continues to move, the ratchet pawl A12 A12 will push the ratchet A22 to rotate, the ratchet A22 drives the rotating rod 141 to rotate, the rotating rod 141 drives the ratchet B152 to rotate, the ratchet B152 drives the pawl B153 to rotate in a circular direction, the pawl drives the rocker arm 154 to rotate, the rocker arm 154 drives the rotating shaft 151 to rotate, the rotating shaft 151 drives the counting shaft of the counter 2 to rotate, and the counter 2 will increase a count value. It should be noted that the maximum angle that the two arc plates 5 can open should be similar to the width of an adult leopard catfish. When a larger leopard catfish passes by, the two arc plates 5 will be fully opened, and only one will not be opened due to the uncertainty of the swimming trajectory of the smaller leopard catfish and other types of fish.

[0031] Next, when the mounting head 11 moves, the spring 13 is in a stretched state. When one of the adult leopard catfishes passes through the cage 4, it will be separated from the arc plate 5. The elastic deformation of the spring 13 will reset the moving part 10, and the moving part 10 will push the telescopic mechanism 7 to reset, thereby resetting the arc plate 5. When the rotating rod 141 rotates, it will drive the disc 143 to rotate, so that the torsion spring 144 accumulates force. When the mounting head 11 drives the pawl A12 to reset, the elastic deformation force of the torsion spring 144 will restore the rotating rod 141 and the ratchet to their original positions to prevent the ratchet A22 from rotating and the internal card slot being unable to adapt to the pawl A12 again. When the rotating rod 141 drives the ratchet B152 to rotate in the opposite direction, the ratchet B152 will not drive the ratchet B153 to rotate, so that the ratchet B153 keeps its position and does not move, thereby preventing the counter 2 from repeatedly rotating forward and backward and causing counting confusion.

[0032] Then, when the rotating rod 141 rotates, it can drive the bevel gear A202 to rotate, the bevel gear A202 drives the bevel gear B203 to rotate, and the bevel gear B203 drives the connecting rod 204 to rotate. Under the action of the multi-groove belt transmission connection between the two synchronous wheels 205, the connecting rod 204 can drive the two synchronous wheels 205 to rotate, one of the synchronous wheels 205 drives the inner rod 18 to rotate, and the inner rod 18 drives the baffle 16 to rotate and moves the baffle 16 to a position that fits with the other inclined surface of the V-shaped opening 301. At this time, when the larger leopard catfish and other types of fish enter the V-shaped opening 301 from the exit of the cage 4 and enter the box body 3, and swim from the exit A302 of the box body 3 to the corresponding fish cage net, the fish cage net can be a funnel-shaped fish cage net. Because the shape of the funnel gradually narrows, the fish will continue to swim inward under the guidance of inertia and vision, and when they want to swim out, it is difficult for the fish to turn around and accurately find When the rotating rod 141 rotates in the opposite direction and resets, the baffle 16 can also be reset through the transmission mechanism 20. When the leopard catfish larger than an adult swims to the vicinity of the opening of the cage 4, it cannot enter. When the smaller leopard catfish and other smaller fish enter the opening of the cage 4, the arc plate 5 may not be opened. At this time, the smaller fish will enter the V-shaped opening 301 along the cage 4. Since the baffle 16 is reset, it abuts against one of the inclined surfaces of the V-shaped opening 301 and makes the opening of the other inclined surface in an open state, the leopard catfish and other small fish swim from the exit B303 of the box body 3 to the fish cage net at the exit B303, thereby classifying and catching the big fish and the small fish, and achieving the purpose of collecting the big fish and the small fish separately through the two fish cage nets. Since the leopard catfish mainly eats small fish, fish of the same size generally do not eat them, the probability of death of other types of fish that mistakenly enter is reduced.

[0033] Then, if Figure 8 As shown, before the pawl A12 moves, it should keep a certain distance from the ratchet wheel A22, such as Fig. 9 As shown in the figure, the arrow is the force direction of the connector 701. When a small fish accidentally touches one of the curved plates 5 and pushes the curved plate 5 to rotate, the position of one of the adjusting rods 6 remains unchanged, and the other adjusting rod 6 rotates and drives the telescopic mechanism 7 to tilt. Although the tilted telescopic mechanism 7 can drive the moving part 10 to move a certain distance, at this time, the pawl A12 still cannot touch the ratchet A22, thereby failing to drive the ratchet A22 to rotate, so that the rotating rod 141 does not rotate, and the counter 2 does not count the small fish that pass through. Fig.10As shown, the arrow is the force direction of the connector 701. When an adult leopard catfish adapts to the maximum travel distance between the two arc plates 5, it can push the two arc plates 5 to rotate at the same time, causing the telescopic mechanism 7 to translate and move a greater distance, so that the pawl A12 can push the ratchet A22 to rotate. At this time, the counter 2 increases by one value.

[0034] Finally, in summary, each time an adult leopard catfish passes by, the counter 2 will increase a count value. The counter 2 can be a mold counter 2. When the count reaches a preset value, the rotating component, that is, the counting shaft mentioned above, can be automatically locked by an internal mechanical or electronic device to prevent the counter 2 from continuing to count, thereby ensuring the accuracy and reliability of the count. This self-locking function can realize the self-locking of the arc plate 5, which is convenient for timely checking the number of fish caught, and avoiding the probability that other fish are attacked and killed by leopard catfish due to being trapped for a long time. Since larger leopard catfish poses a greater threat and has a larger size, the space occupied by the fish cage net is larger, and the fish cage net is more likely to be blocked. Therefore, the self-locking of the arc plate 5 prevents larger leopard catfish from coming in. When the count is After the device 2 reaches the predetermined value, the whole catfish can be salvaged, the catfish can be separated from other types of fish, and the other types of fish can be put back into the river. It should be noted that the catfish is a kind of scavenger fish with the habit of sucking algae, benthic animals and garbage in the water. If it reproduces in large numbers in wild waters, it will cause many harms to the local ecological environment. Therefore, the catfish needs to be caught. Since adult catfish poses a greater threat, after a certain number of adult catfish are caught, other adult catfish can be prevented from being caught again. Accurate fishing counts can help understand the changes in its number in the ecosystem and prevent chain reactions in the food chain caused by overfishing, such as affecting the fish that feed on it or the aquatic environment that relies on it to control the growth of algae.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for identifying leopard catfish with a counting function, comprising a base (1) and a counter (2) fixed on the base (1), characterized in that: A box body (3) is fixedly installed on one side of the base (1), a cage (4) playing a guiding role is fixedly installed on one side of the box body (3), two symmetrical arc-shaped plates (5) are installed inside the cage (4), a rotating rod (17) in the arc-shaped plate (5) is rotatably connected to the cage (4), one end of the rotating rod (17) is fixedly connected to an L-shaped adjustment rod (6), a telescopic mechanism (7) is installed between the two adjustment rods (6), a fixed sleeve (8) is fixedly installed on the cage (4), a long strip (9) is slidably connected inside the fixed sleeve (8), and moving parts ( 10) and a mounting head (11), the moving part (10) is in contact with the telescopic mechanism (7), a ratchet pawl A (12) is hinged inside the mounting head (11), a spring (13) is fixedly connected between the mounting head (11) and the moving part (10), a ratchet assembly (14) is installed at the bottom of the cage (4), the ratchet pawl A (12) is used to push the ratchet A (22) of the ratchet assembly (14) to rotate, a rotating assembly (15) for unidirectional rotation is installed on the rotating rod (141) of the ratchet assembly (14), and the rotating shaft (151) of the rotating assembly (15) is fixedly connected to the counting shaft of the counter (2); A V-shaped opening (301) is provided inside the box (3), and the box (3) is used to install a fish cage net to prevent fish from escaping. An inclined baffle (16) is rotatably installed inside the box (3), and the baffle (16) contacts one side of the V-shaped opening (301). An inner rod (18) in the baffle (16) is rotatably connected to the box (3), and a rotating rod (141) controls the rotation of the inner rod (18) through a transmission mechanism (20).

2. The device for identifying leopard catfish with counting function according to claim 1, characterized in that: The inlet width of the cage (4) is greater than the width of the leopard catfish.

3. The device for identifying leopard catfish with counting function according to claim 1, characterized in that: The box body (3) further comprises an outlet A (302) and an outlet B (303), and both the outlet A (302) and the outlet B (303) are used for installing a fish cage net.

4. The device for identifying leopard catfish with counting function according to claim 1, characterized in that: The telescopic mechanism (7) comprises two connecting heads (701), a straight tube (702) and two inserting strips (703); the two adjusting rods (6) are rotatably connected to the two connecting heads (701) respectively; the two connecting heads (701) are fixedly connected to the two inserting strips (703) respectively; and the two inserting strips (703) are slidably connected to the two straight tubes (702) respectively.

5. The device for identifying leopard catfish with counting function according to claim 1, characterized in that: When the two arc-shaped plates (5) rotate to the maximum stroke, they contact the cage (4) and stop rotating.

6. The device for identifying leopard catfish with counting function according to claim 1, characterized in that: A protective net (19) is installed on the box body (3).

7. The device for identifying leopard catfish with counting function according to claim 1, characterized in that: The ratchet assembly (14) further comprises a fixed block A (142), a disc (143) and a torsion spring (144); the fixed block A (142) is fixed to the cage (4); the disc (143) is fixed to the rotating rod (141); the rotating rod (141) is rotatably connected to the fixed block A (142); and two ends of the torsion spring (144) are respectively fixed to the disc and the fixed block A (142).

8. The device for identifying leopard catfish with counting function according to claim 1, characterized in that: The rotating assembly (15) further comprises a ratchet wheel B (152), a pawl B (153) and a rocker arm (154); the pawl B (153) is adapted to the ratchet wheel B (152); the pawl B (153) is rotatably connected to the rocker arm (154) via a rotating shaft; and the rocker arm (154) is fixed to the rotating shaft (151).

9. The device for identifying leopard catfish with counting function according to claim 1, characterized in that: The transmission mechanism (20) comprises a fixed block B (201), a bevel gear A (202), a bevel gear B (203), a connecting rod (204) and two synchronous wheels (205). The fixed block B (201) is fixed to the cage (4). The connecting rod (204) passes through the fixed block B (201) and is rotatably connected to the fixed block B (201). The two ends of the connecting rod (204) are respectively fixed to the bevel gear B (203) and one of the synchronous wheels (205). The other synchronous wheel (205) is fixed to the inner rod (18). The two synchronous wheels (205) are connected by a multi-groove belt transmission. The bevel gear A (202) is meshed with the bevel gear B (203). The bevel gear A (202) is fixedly connected to the rotating rod (141).

10. The device for identifying leopard catfish with counting function according to claim 1, characterized in that: The cage (4) is provided with a lifting lug (21), and the lifting lug (21) is used for connecting a traction rope.

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