Device and method for enhancing fish luring effect of fishway entrance and exit

Abstract

The invention relates to the technical field of fish luring devices, and discloses a device and method for enhancing the fish luring effect of a fishway entrance and exit, the device comprises a mounting rack and a shell fixed at the top of the mounting rack, the front side of the shell is symmetrically and rotatably provided with chain wheels, and the two chain wheels are connected through a chain belt; and a connecting plate is fixedly mounted on the front side of the chain belt. An adjusting flow field is formed at the fishway through the generating assembly, so that the adjusting flow field suitable for migratory fishes is formed, the fishes stay in the adjusting flow field area for a long time, then the fishes can easily find a fishway inlet, and the probability that the fishes enter the fishway can be greatly improved in cooperation with guiding of a lamp tube to the fishes; and the lamp tube can be cleaned before entering water, so that the influence of impurities on the light emitting effect of the lamp tube is avoided, better fish luring is ensured, and avoidance can be performed when the lamp tube is impacted by fishes in the fish luring process of the lamp tube, so that the lamp tube is prevented from being damaged by collision.

Description

Technical Field

[0001] The invention relates to the technical field of fish attracting devices, in particular to a device and a method for enhancing the fish attracting effect of a fishway entrance and exit. Background Art

[0002] A fishway is a passage for fish to migrate. It is a remedial measure taken because human activities have destroyed the passage for fish migration. Generally, artificial water tanks are built on sluices or dams to protect the habits of fish. The flow field at the entrance of the fishway should meet two conditions: one is that it is suitable for fish to gather, and the other is that it can enable fish to quickly find the entrance of the fishway.

[0003] Setting a fish attracting device at the fishway can enhance the effect of attracting fish. Chinese patent application number 202311306484.8 discloses a flow field regulating device and a fish attracting system for regulating the flow field at the fishway inlet. The system controls the size of the water flow ejected from the jet pipe through a controller, so that the river forms a regulating flow field suitable for migratory fish at the fishway inlet, allowing the fish to stay in the regulating flow field area for a long time, thereby making it easier for the fish to find the fishway entrance and improving the fish passing efficiency at the fishway entrance. However, the system can only attract fish to stay by simply creating a regulating flow field, but cannot better guide the fish into the fishway.

[0004] Therefore, it is necessary to invent a device and method for enhancing the fish attracting effect of the fishway entrance and exit to solve the above problems. Summary of the invention

[0005] In view of the above problems, the present invention provides a device and method for enhancing the fish attracting effect of the fishway entrance and exit, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for enhancing the fish-attracting effect of the fishway entrance and exit, comprising a mounting frame and a shell fixed on the top of the mounting frame, a sprocket is symmetrically rotatably mounted on the front side of the shell, two sprockets are connected by a chain belt, a connecting plate is fixedly mounted on the front side of the chain belt, a mounting seat is fixedly mounted on one end of the connecting plate, a lamp tube is connected to the mounting seat through a connecting piece, a guide rail is fixedly mounted on one side of the connecting piece, a slider is slidably mounted inside the guide rail, a ring plate is sleeved on the outside of the lamp tube, an air bag is fixedly mounted on the inner side of the ring plate, the ring plate is fixedly connected to the slider, an air injection component for injecting air into the air bag is provided on the outer side of the connecting plate, a generating component for generating a regulating flow field in water is provided inside the mounting frame, and a driving component for controlling the start of the generating component and the rotation of the sprocket is provided on the mounting frame.

[0007] Furthermore, the gas injection assembly includes a cylinder body fixedly mounted on one side of the connecting plate, the side of the cylinder body close to the airbag is connected to the airbag through a telescopic tube, a piston is provided inside the cylinder body, a spring is fixedly mounted on the side of the piston close to the connecting plate, a push rod is fixedly mounted on the side of the piston away from the connecting plate, one end of the push rod extends out of the cylinder body, an extrusion plate is fixedly mounted on the front side of the mounting frame, one end of the extrusion plate is provided with an inclined surface matching the push rod.

[0008] Furthermore, a cavity is opened inside the connecting plate, and a rotating rod is rotatably installed at one end of the connecting plate away from the lamp tube, one end of the rotating rod extends into the cavity, and one end of the rotating rod is provided with a rotating component for driving it to rotate, the connecting piece is specifically a ball head rod, and the mounting seat is a ball head sleeve, the connecting piece is rotatably arranged inside the mounting seat, a notch surface is provided on the side of the connecting piece close to the rotating rod, and a wire passing hole connected to the cavity is provided in the middle of the side of the mounting seat close to the cavity, and a wire receiving groove is provided at one end of the rotating rod located in the cavity, a pull rope is fixedly connected to the wire receiving groove, and the other end of the pull rope passes through the wire passing hole and is fixedly connected to the middle of the notch surface of the connecting piece.

[0009] Furthermore, the rotating assembly includes a gear fixedly mounted on a side of a rotating rod away from the connecting member, a torsion spring is sleeved on the outside of the rotating rod, two ends of the torsion spring are respectively fixedly connected to the rotating rod and a connecting plate, a mounting plate is fixedly mounted on the front side of the shell, and teeth cooperating with the gear are equidistantly mounted on the lower front side of the mounting plate.

[0010] Furthermore, the generating assembly includes a sliding frame slidably mounted in the mounting frame, nozzles are fixedly mounted equidistantly inside the sliding frame, spray holes are equidistantly arranged on the outside of the nozzles, a plurality of the nozzles are connected by connecting pipes, a water pump is fixedly mounted on the outside of the mounting frame, the water delivery end of the water pump is connected to the nozzles through a hose, and a fish detection assembly is fixedly mounted inside the sliding frame.

[0011] Furthermore, the driving assembly includes a first motor and a second motor fixedly mounted on the top of the mounting frame, the output shaft of the first motor extends outside the shell and is fixedly connected to the middle of one of the sprockets, the top of the sliding frame is equidistantly provided with driving teeth, the top of the mounting frame is symmetrically fixed with side plates, a driving gear that cooperates with the driving teeth is rotatably mounted between the two side plates, one end of the output shaft of the second motor is fixedly connected to one end of the driving gear, and the top of the mounting frame is provided with a controller for controlling the start of the water pump, the first motor, the lamp tube and the second motor.

[0012] Furthermore, the lamp tube is a fish-attracting lamp tube.

[0013] The method for attracting fish using the device for enhancing the fish attracting effect of the fishway entrance and exit as described above comprises the following steps: S1. When in use, the mounting frame is set at the entrance and exit of the fishway. When the fish migrate, the lamp is turned on, and the driving component drives the generating component to work, so as to adjust the flow field at the fishway, thereby forming an adjusted flow field suitable for migrating fish, allowing the fish to stay in the adjusted flow field area for a long time, thereby making it easy for the fish to find the entrance of the fishway; S2. The driving assembly drives the sprocket to rotate with the chain belt, so that the driving connecting plate moves with the mounting seat, the connector, the lamp tube, the guide rail, the slider, the ring plate, and the air bag. When the lamp tube enters the water from a horizontal state, the air injection assembly injects air into the air bag to expand it, so that it fits the lamp tube. When the lamp tube rotates to an oblique downward position but has not yet entered the water, the end of the lamp tube away from the connecting plate is obliquely downward. At this time, under the action of gravity, the ring plate moves downward with the air bag, so that impurities on the surface of the lamp tube are brought downward, so that the lamp tube is cleaned. Then the lamp tube enters the water, and the impurities accumulated at the bottom of the lamp tube are washed away by the water. S3. The light emitted by the lamp tube can attract fish to approach. As the lamp tube moves, the fish are guided to the fishway entrance. Then the lamp tube leaves the water. The fish find that the fishway entrance moves inward, and the lamp tube leaves the water. At this time, the gas injection component cancels the gas injection. At this time, the air bag becomes deflated and separated from the surface of the lamp tube. When the lamp tube leaves the water, impurities will adhere to its surface. As the lamp tube continues to move, the lamp tube rotates with the bottom end inclined upward. At this time, under the action of gravity, the ring plate moves in the direction close to the connecting plate. In this process, since the air bag does not contact the lamp tube, the impurities will not be brought to the position close to the connecting plate by the air bag. Then, when the lamp tube moves to enter the water again, the impurities on the surface of the lamp tube before entering the water can be continuously cleaned according to the above principle to prevent the impurities from affecting its luminous effect. The adjustment flow field generated by the movement guidance of the lamp tube can better guide the fish to the fishway entrance.

[0014] Technical effects and advantages of the present invention: 1. The present invention forms a regulating flow field at the fishway through the generating assembly, thereby forming a regulating flow field suitable for migratory fish, allowing the fish to stay in the regulating flow field area for a long time, thereby making it easy for the fish to find the fishway entrance, and with the guidance of the fish by the lamp tube, the probability of the fish entering the fishway can be greatly increased; 2. The present invention can clean the lamp tube before it enters the water to prevent impurities from affecting its luminous effect and ensure better fish attraction; 3. The present invention can avoid the lamp tube from being damaged when the lamp tube is hit by the fish during the process of luring fish with the lamp tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure diagram of the device for enhancing the fish attracting effect of the fishway entrance and exit according to the embodiment of the present invention is shown. Figure 1 ; Figure 2The structure diagram of the device for enhancing the fish attracting effect of the fishway entrance and exit according to the embodiment of the present invention is shown. Figure 2 ; Figure 3 The embodiment of the present invention is shown Figure 2 The enlarged structural diagram at A in the middle; Figure 4 A schematic cross-sectional view of a device for enhancing the fish attracting effect of a fishway entrance and exit according to an embodiment of the present invention is shown; Figure 5 The embodiment of the present invention is shown Figure 4 The enlarged structural diagram at B in the middle; Figure 6 A structural schematic diagram showing a partial structure of an embodiment of the present invention; Figure 7 The embodiment of the present invention is shown Figure 6 The enlarged structural diagram at C in the middle; Figure 8 A schematic diagram showing the structure of a generating component according to an embodiment of the present invention is shown; In the figure: 1. mounting frame; 2. sprocket; 3. chain belt; 4. connecting plate; 5. mounting seat; 6. connecting piece; 7. lamp tube; 8. guide rail; 9. slider; 10. ring plate; 11. air bag; 12. cylinder; 13. telescopic tube; 14. piston; 15. push rod; 16. spring; 17. extrusion plate; 18. inclined plane; 19. rotating rod; 20. pull rope; 21. torsion spring; 22. gear; 23. mounting plate; 24. teeth; 25. first motor; 26. controller; 27. sliding frame; 28. nozzle; 29. ​​water pump; 30. fish detection component; 31. drive teeth; 32. drive gear; 33. second motor; 34. housing. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0017] Embodiment, a device for enhancing the fish attracting effect of fishway entrance and exit, such as Figures 1 to 8As shown, it includes a mounting frame 1 and a shell 34 fixed on the top of the mounting frame 1, a sprocket 2 is symmetrically rotatably installed on the front side of the shell 34, the two sprockets 2 are connected by a chain belt 3, a connecting plate 4 is fixedly installed on the front side of the chain belt 3, a mounting seat 5 is fixedly installed on one end of the connecting plate 4, a lamp tube 7 is connected to the mounting seat 5 through a connecting member 6, a guide rail 8 is fixedly installed on one side of the connecting member 6, a slider 9 is slidably installed inside the guide rail 8, a ring plate 10 is sleeved on the outside of the lamp tube 7, an air bag 11 is fixedly installed on the inner side of the ring plate 10, the ring plate 10 is fixedly connected to the slider 9, an air injection component for injecting air into the air bag 11 is provided on the outer side of the connecting plate 4, a generating component for generating a regulated flow field in water is provided inside the mounting frame 1, and a driving component for controlling the start of the generating component and the rotation of the sprocket 2 is provided on the mounting frame 1.

[0018] When in use, the mounting bracket 1 is set at the entrance and exit of the fishway. When fish migrate, the lamp tube 7 is turned on, and the driving component drives the generating component to work to adjust the flow field at the fishway, thereby forming an adjusted flow field suitable for migrating fish, allowing fish to stay in the adjusted flow field area for a long time, so that fish can easily find the entrance of the fishway. At the same time, the driving component drives the sprocket 2 to rotate with the chain belt 3, so that the driving connecting plate 4 moves with the mounting seat 5, the connecting piece 6, the lamp tube 7, the guide rail 8, the slider 9, the ring plate 10, and the air bag 11. When the lamp tube 7 enters the water from a horizontal state, the air injection component injects air into the air bag 11 to expand it, so that it fits with the lamp tube 7. When the lamp tube 7 rotates to an oblique downward position but has not entered the water, the end of the lamp tube 7 away from the connecting plate 4 is obliquely downward. At this time, under the action of gravity, the ring plate 10 moves downward with the air bag 11, so that impurities on the surface of the lamp tube 7 are brought downward, so that the lamp tube 7 is cleaned, and then the lamp tube 7 enters the water and accumulates The impurities at the bottom of the lamp tube 7 are washed away by water, and the light emitted by the lamp tube 7 can attract fish to approach. As the lamp tube 7 moves, the fish are guided to the fishway entrance. Then the lamp tube 7 leaves the water, and the fish finds that the fishway entrance moves inward. The lamp tube 7 leaves the water, and the gas injection component cancels the gas injection. At this time, the air bag 11 becomes deflated and separated from the surface of the lamp tube 7. When the lamp tube 7 leaves the water, impurities will adhere to its surface. As the lamp tube 7 continues to move, the lamp tube 7 rotates with the bottom end inclined upward. At this time, under the action of gravity, the ring plate 10 moves in the direction close to the connecting plate 4. In this process, since the air bag 11 does not contact the lamp tube 7, the impurities will not be brought to the position close to the connecting plate 4 by the air bag 11. Then, when the lamp tube 7 moves to enter the water again, the impurities on the surface of the lamp tube 7 before entering the water can be continuously cleaned according to the above principle to prevent the impurities from affecting its luminous effect. The adjustment flow field generated by the movement guidance of the lamp tube 7 can better guide the fish to the fishway entrance.

[0019] The inner side of the airbag 11 is coated with polyurethane waterproof coating to make its inner side smooth. The weight of the ring plate 10 is sufficient to carry the inflated airbag 11 that fits the lamp tube 7 down along the surface of the lamp tube 7, and can drive away impurities on the surface of the lamp tube 7. The gravity of the ring plate 10 is greater than the friction force when it carries the inflated airbag 11 that fits the lamp tube 7 down along the surface of the lamp tube 7.

[0020] like Figure 2 , Figure 3 and Figure 7 As shown, the gas injection assembly includes a cylinder body 12 fixedly mounted on one side of the connecting plate 4, the side of the cylinder body 12 close to the airbag 11 is connected to the airbag 11 through a telescopic tube 13, a piston 14 is provided inside the cylinder body 12, a spring 16 is fixedly mounted on the side of the piston 14 close to the connecting plate 4, a push rod 15 is fixedly mounted on the side of the piston 14 away from the connecting plate 4, one end of the push rod 15 extends to the outside of the cylinder body 12, an extrusion plate 17 is fixedly mounted on the front side of the mounting frame 1, and one end of the extrusion plate 17 is provided with an inclined surface 18 that cooperates with the push rod 15.

[0021] When the connecting plate 4 moves from a horizontal state into the water with the cylinder body 12, the piston 14 and the push rod 15, the push rod 15 contacts the inclined surface 18 so that the push rod 15 is squeezed and moves with the piston 14. At the same time, the spring 16 is compressed to deform and generate a force, so that the air in the cylinder body 12 is squeezed outward, and the air enters the air bag 11 through the telescopic tube 13 to expand it, so that the air bag 11 fits the surface of the lamp tube 7, and then the push rod 15 contacts the surface of the squeezing plate 17. The surface of the squeezing plate 17 except the inclined surface 18 is a plane. After the push rod 15 contacts the plane, it moves along the plane. When the lamp tube 7 rotates to a horizontal state out of the water, the push rod 15 is separated from the squeezing plate 17, and the spring 16 releases the force to reset the piston 14, so that the telescopic tube 13 cooperates to draw air back from the air bag 11, so that the air bag 11 becomes deflated and separated from the lamp tube 7.

[0022] like Figure 5 As shown, a cavity is opened inside the connecting plate 4, and a rotating rod 19 is rotatably installed at one end of the connecting plate 4 away from the lamp tube 7, and one end of the rotating rod 19 extends into the cavity, and one end of the rotating rod 19 is provided with a rotating component for driving it to rotate, the connecting member 6 is specifically a ball head rod, and the mounting seat 5 is a ball head sleeve, the connecting member 6 is rotatably arranged inside the mounting seat 5, and a notch surface is provided on the side of the connecting member 6 close to the rotating rod 19, and a wire passing hole connected to the cavity is provided in the middle of the side of the mounting seat 5 close to the cavity, and a wire receiving groove is provided at one end of the rotating rod 19 located in the cavity, and a pull rope 20 is fixedly connected in the wire receiving groove, and the other end of the pull rope 20 passes through the wire passing hole and is fixedly connected to the middle of the notch surface of the connecting member 6.

[0023] When the lamp tube 7 is cleaned, the rotating assembly drives the rotating rod 19 to rotate, so that the pull rope 20 is released. At this time, the pulling force of the pull rope 20 on the connecting piece 6 disappears. At this time, the connecting piece 6 is movable. After entering the water, when the fish hits the lamp tube 7, the lamp tube 7 can be offset with the connecting piece 6 to avoid it, so that the lamp tube 7 will not be damaged. When the lamp tube 7 is about to come out of the water, the rotating assembly drives the rotating rod 19 to rotate and reset to reel in the pull rope 20, so that it pulls the connecting piece 6 back to its original position, so that the connecting piece 6 is fixed.

[0024] like Figure 1 and Figure 5 As shown, the rotating assembly includes a gear 22 fixedly mounted on the side of the rotating rod 19 away from the connecting member 6, a torsion spring 21 is sleeved on the outside of the rotating rod 19, and the two ends of the torsion spring 21 are respectively fixedly connected to the rotating rod 19 and the connecting plate 4, a mounting plate 23 is fixedly mounted on the front side of the shell 34, and teeth 24 cooperating with the gear 22 are equidistantly arranged on the lower front side of the mounting plate 23.

[0025] When the gear 22 moves to mesh with the teeth 24, the driving rod 19 rotates forward and the torsion spring 21 is twisted to cause its torsional deformation to generate a force. As the rod 19 rotates, the pull rope 20 is released, the gear 22 separates from the teeth 24, and the torsion spring 21 releases the force to drive the rod 19 to reverse, rewind the pull rope 20, pull the connecting piece 6 back to its original position, and tighten it so that it cannot move.

[0026] like Figure 1 and Figure 8 As shown, the generating assembly includes a sliding frame 27 slidably mounted in the mounting frame 1, nozzles 28 are fixedly mounted at equal intervals inside the sliding frame 27, and spray holes are provided at equal intervals on the outside of the nozzles 28. The multiple nozzles 28 are connected by connecting pipes, a water pump 29 is fixedly mounted on the outside of the mounting frame 1, and the water delivery end of the water pump 29 is connected to the nozzle 28 through a hose, and a fish detection assembly 30 is fixedly mounted inside the sliding frame 27.

[0027] The fish detection component 30 is a detection component that can detect fish information in the prior art. Its working principle will not be elaborated here. The driving component drives the sliding frame 27 to move to the outside of the mounting frame 1, so that the fish detection component 30 moves with the nozzle 28. Then the water pump 29 is started to pump water out through the hose and inject it into the nozzle 28. Then the water enters multiple nozzles 28 through the connecting pipe and is finally sprayed out through the spray hole. The fish detection component 30 can detect the information of the fish school, and thus cooperate with the controller 26 to control the water pump 29 to adjust the water spraying amount and water spraying speed, so that a regulating flow field suitable for migratory fish is formed at the fishway mouth.

[0028] like Figure 7As shown, the driving assembly includes a first motor 25 and a second motor 33 fixedly mounted on the top of the mounting frame 1, the output shaft of the first motor 25 extends to the outside of the shell 34 and is fixedly connected to the middle of one of the sprockets 2, the top of the sliding frame 27 is equidistantly provided with driving teeth 31, the top of the mounting frame 1 is symmetrically fixed with side plates, a driving gear 32 that cooperates with the driving teeth 31 is rotatably mounted between the two side plates, one end of the output shaft of the second motor 33 is fixedly connected to one end of the driving gear 32, and the top of the mounting frame 1 is provided with a controller 26 for controlling the start of the water pump 29, the first motor 25, the lamp 7 and the second motor 33, and the controller 26 is a PLC controller.

[0029] When the fish migrate, the controller 26 controls the first motor 25 and the second motor 33 to start, and controls the lamp 7 to turn on, and the water pump 29 to turn on. The output shaft of the first motor 25 rotates the sprocket 2, thereby driving the chain belt 3 to move. The output shaft of the second motor 33 rotates the driving gear 32, so that the driving teeth 31 drive the sliding frame 27 to move outward from the mounting frame 1.

[0030] like Figure 1 As shown, the lamp tube 7 is a fish attracting lamp tube.

[0031] The lamp tube 7 is put into the water to attract fish to move with it.

[0032] The method for attracting fish using the device for enhancing the fish attracting effect of the fishway entrance and exit as described above comprises the following steps: S1. When in use, the mounting frame 1 is set at the entrance and exit of the fishway. When the fish migrate, the lamp 7 is turned on, and the driving component drives the generating component to work, so as to adjust the flow field at the fishway, thereby forming an adjusted flow field suitable for migrating fish, allowing the fish to stay in the adjusted flow field area for a long time, thereby making it easy for the fish to find the entrance of the fishway; S2, the driving assembly drives the sprocket 2 to rotate with the chain belt 3, so that the driving connecting plate 4 moves with the mounting seat 5, the connecting piece 6, the lamp tube 7, the guide rail 8, the slider 9, the ring plate 10, and the air bag 11. When the lamp tube 7 enters the water from a horizontal state, the air injection assembly injects air into the air bag 11 to expand it, so that it fits with the lamp tube 7. When the lamp tube 7 rotates to an oblique downward position but has not entered the water, the end of the lamp tube 7 away from the connecting plate 4 is obliquely downward. At this time, under the action of gravity, the ring plate 10 moves downward with the air bag 11, so that the impurities on the surface of the lamp tube 7 are brought downward, so that the lamp tube 7 is cleaned, and then the lamp tube 7 enters the water, and the impurities accumulated at the bottom of the lamp tube 7 are washed away by the water; S3. The light emitted by the lamp tube 7 can attract fish to approach. As the lamp tube 7 moves, the fish are guided to the fishway entrance. Then the lamp tube 7 leaves the water. The fish find that the fishway entrance moves inward, and the lamp tube 7 leaves the water. At this time, the air injection component cancels the air injection. At this time, the air bag 11 becomes deflated and separated from the surface of the lamp tube 7. When the lamp tube 7 is out of water, impurities will adhere to its surface. As the lamp tube 7 continues to move, the lamp tube 7 rotates with the bottom end inclined upward. At this time, under the action of gravity, the ring plate 10 moves in the direction close to the connecting plate 4. In this process, since the air bag 11 does not contact the lamp tube 7, the impurities will not be brought to the position close to the connecting plate 4 by the air bag 11. Then, when the lamp tube 7 moves to enter the water again, the impurities on the surface of the lamp tube 7 before entering the water can be continuously cleaned according to the above principle to prevent the impurities from affecting its luminous effect. The adjustment flow field generated by the movement guidance of the lamp tube 7 can better guide the fish to the fishway entrance.

[0033] Working principle: When in use, the mounting frame 1 is set at the entrance and exit of the fishway. When the fish migrate, the controller 26 controls the first motor 25 and the second motor 33 to start, and controls the lamp 7 to turn on, and the water pump 29 to turn on. The output shaft of the first motor 25 rotates with the sprocket 2, thereby driving the chain belt 3 to move. The output shaft of the second motor 33 rotates with the driving gear 32, so that the driving teeth 31 drive the sliding frame 27 to move out of the mounting frame 1, so that the nozzle 28 and the fish detection component 30 move accordingly. Then the water pump 29 is started, and the water is pumped out and injected into the nozzle 28 through the hose, and then enters into multiple nozzles 28 through the connecting pipe, and finally sprayed out through the spray hole. The fish detection component 30 can detect the information of the fish school. The controller 26 controls the water pump 29 to adjust the water spraying amount and speed, so that a regulating flow field suitable for migratory fish is formed at the fishway entrance, allowing the fish to stay in the regulating flow field area for a long time, so that the fish can easily find the fishway entrance. The chain belt 3 rotates to drive the connecting plate 4 to move with the mounting seat 5, the connecting piece 6, the lamp tube 7, the guide rail 8, the slider 9, the ring plate 10, and the air bag 11. When the lamp tube 7 enters the water from a horizontal state, the push rod 15 contacts the inclined surface 18 to squeeze the push rod 15 and make it move with the piston 14. At the same time, the spring 16 is compressed to deform and generate a force, so that the air in the cylinder 12 is squeezed outward, and the air enters the air bag 11 through the telescopic tube 13 to expand it, so that the air bag 11 and the lamp tube 7 are in the water. 7, then the push rod 15 and the squeeze plate 17 surface are in contact, when the lamp tube 7 rotates to obliquely downward but has not entered the water, at this time, the end of the lamp tube 7 away from the connecting plate 4 is obliquely downward, at this time, under the action of gravity, the ring plate 10 moves downward with the air bag 11, so that the impurities on the surface of the lamp tube 7 are brought downward, so that the lamp tube 7 is cleaned, and then the lamp tube 7 enters the water, and the impurities accumulated at the bottom of the lamp tube 7 are washed away by the water, and the light emitted by the lamp tube 7 can attract fish to approach, and with the movement of the lamp tube 7, the fish are guided to the fishway entrance, and then the lamp tube 7 leaves the water, and the fish find the fishway entrance and move inward, and when the lamp tube 7 rotates to a horizontal state out of the water, the push rod 15 is separated from the squeeze plate 17, and the spring 16 releases the force to bring the piston 14 back The airbag 11 is in the position, so that the telescopic tube 13 is cooperated to draw back the air from the airbag 11, so that the airbag 11 becomes deflated and separated from the lamp tube 7. When the lamp tube 7 is out of water, impurities will adhere to its surface. As the lamp tube 7 continues to move, the lamp tube 7 rotates with the bottom end inclined upward. At this time, under the action of gravity, the ring plate 10 moves in the direction close to the connecting plate 4. In this process, since the airbag 11 is not in contact with the lamp tube 7, the impurities will not be brought to the position close to the connecting plate 4 by the airbag 11. Subsequently, when the lamp tube 7 moves to enter the water again, the impurities on the surface of the lamp tube 7 before entering the water can be continuously cleaned according to the above principle to prevent the impurities from affecting its luminous effect. The adjustment flow field generated by the movement guidance of the lamp tube 7 can better guide the fish to the fishway mouth.After the lamp tube 7 is cleaned, when the gear 22 moves to mesh with the teeth 24, the driving rod 19 rotates forward, and the torsion spring 21 is twisted to torsionally deform it to generate a force. As the rod 19 rotates, the pull rope 20 is released. At this time, the pulling force of the pull rope 20 on the connecting member 6 disappears. At this time, the connecting member 6 is movable. After entering the water, when the fish hits the lamp tube 7, the lamp tube 7 can be offset with the connecting member 6 to avoid it, so that the lamp tube 7 will not be damaged. When the lamp tube 7 is about to come out of the water, the gear 22 separates from the teeth 24, and the torsion spring 21 releases the force to reverse the rotating rod 19, rewind the pull rope 20, pull the connecting member 6 back to its original position, and tighten it so that it cannot move; when it is not used, the output shaft of the second motor 33 drives the driving gear 32 to rotate, so that the driving teeth 31 drive the sliding frame 27 to reset. ;

[0034] Obviously, the above is only a part of the embodiments of the present invention, not all of the embodiments. The above embodiments are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any combination, modification, equivalent replacement, improvement and all other embodiments that can be made by those of ordinary skill in the art within the spirit and principle of the present invention should be within the protection scope of the present invention.

Claims

1. A device for enhancing the fish attracting effect of a fishway entrance and exit, comprising a mounting frame (1) and a housing (34) fixed on the top of the mounting frame (1), characterized in that: A sprocket (2) is symmetrically mounted on the front side of the housing (34) for rotation, and the two sprockets (2) are connected via a chain belt (3). A connecting plate (4) is fixedly mounted on the front side of the chain belt (3). A mounting seat (5) is fixedly mounted on one end of the connecting plate (4). A lamp tube (7) is connected to the mounting seat (5) via a connecting piece (6). A ring plate (10) is sleeved on the outside of the lamp tube (7). An air bag (11) is fixedly mounted on the inside of the ring plate (10). An air injection component for injecting air into the air bag (11) is arranged on the outside of the connecting plate (4). A generating component for generating a regulating flow field in water is arranged inside the mounting frame (1). A driving component for controlling the start of the generating component and the rotation of the sprocket (2) is arranged on the mounting frame (1).

2. The device for enhancing the fish attracting effect of the fishway entrance and exit according to claim 1, characterized in that: The gas injection assembly comprises a cylinder body (12) fixedly mounted on one side of the connecting plate (4); the side of the cylinder body (12) close to the airbag (11) is connected to the airbag (11) via a telescopic tube (13); a piston (14) is provided inside the cylinder body (12); a spring (16) is fixedly mounted on the side of the piston (14) close to the connecting plate (4); a push rod (15) is fixedly mounted on the side of the piston (14) away from the connecting plate (4); one end of the push rod (15) extends outside the cylinder body (12); an extrusion plate (17) is fixedly mounted on the front side of the mounting frame (1); one end of the extrusion plate (17) is provided with an inclined surface (18) that cooperates with the push rod (15).

3. The device for enhancing the fish attracting effect of the fishway entrance and exit according to claim 2, characterized in that: A cavity is provided inside the connecting plate (4); a rotating rod (19) is rotatably mounted on one end of the connecting plate (4) away from the lamp tube (7); one end of the rotating rod (19) extends into the cavity; one end of the rotating rod (19) is provided with a rotating assembly for driving the rotating rod to rotate; the connecting member (6) is specifically a ball head rod; the mounting seat (5) is a ball head sleeve; the connecting member (6) is rotatably arranged inside the mounting seat (5); a notch surface is provided on a side of the connecting member (6) close to the rotating rod (19); a wire hole communicating with the cavity is provided in the middle of a side of the mounting seat (5) close to the cavity; a wire receiving groove is provided on one end of the rotating rod (19) located in the cavity; a pull rope (20) is fixedly connected in the wire receiving groove; the other end of the pull rope (20) passes through the wire hole and is fixedly connected to the middle of the notch surface of the connecting member (6).

4. The device for enhancing the fish attracting effect of the fishway entrance and exit according to claim 3, characterized in that: The rotating assembly comprises a gear (22) fixedly mounted on a side of a rotating rod (19) away from the connecting member (6); a torsion spring (21) is sleeved on the outside of the rotating rod (19); two ends of the torsion spring (21) are respectively fixedly connected to the rotating rod (19) and the connecting plate (4); a mounting plate (23) is fixedly mounted on the front side of the housing (34); teeth (24) cooperating with the gear (22) are equidistantly mounted on the front lower part of the mounting plate (23).

5. The device for enhancing the fish attracting effect of the fishway entrance and exit according to claim 4, characterized in that: The generating assembly comprises a sliding frame (27) slidably mounted in the mounting frame (1), nozzles (28) being fixedly mounted at equal intervals inside the sliding frame (27), nozzle holes being arranged at equal intervals outside the nozzles (28), a plurality of nozzles (28) being connected to each other via a connecting pipe, a water pump (29) being fixedly mounted on the outside of the mounting frame (1), a water delivery end of the water pump (29) being connected to the nozzles (28) via a hose, and a fish detection assembly (30) being fixedly mounted inside the sliding frame (27).

6. The device for enhancing the fish attracting effect of the fishway entrance and exit according to claim 5, characterized in that: The driving assembly comprises a first motor (25) and a second motor (33) fixedly mounted on the top of the mounting frame (1); the output shaft of the first motor (25) extends outside the housing (34) and is fixedly connected to the middle of one of the sprocket wheels (2); the top of the sliding frame (27) is provided with driving teeth (31) at equal intervals; the top of the mounting frame (1) is symmetrically fixedly mounted with side plates; a driving gear (32) that cooperates with the driving teeth (31) is rotatably mounted between the two side plates; one end of the output shaft of the second motor (33) is fixedly connected to one end of the driving gear (32); and the top of the mounting frame (1) is provided with a controller (26) for controlling the start of the water pump (29), the first motor (25), the lamp tube (7) and the second motor (33).

7. The device for enhancing the fish attracting effect of the fishway entrance and exit according to claim 6, characterized in that: The lamp tube (7) is a fish-attracting lamp tube, a guide rail (8) is fixedly mounted on one side of the connecting piece (6), a slider (9) is slidably mounted inside the guide rail (8), and the ring plate (10) is fixedly connected to the slider (9).

8. A method for attracting fish using the device for enhancing the fish attracting effect of the entrance and exit of a fishway as claimed in claim 7, characterized in that: Including steps such as: S1. When in use, the mounting frame (1) is set at the entrance and exit of the fishway. When fish migrate, the light tube (7) is turned on, and the driving component drives the generating component to work, thereby adjusting the flow field at the fishway, thereby forming an adjusted flow field suitable for migrating fish, allowing the fish to stay in the adjusted flow field area for a long time, thereby making it easier for the fish to find the entrance of the fishway; S2, the driving assembly drives the sprocket wheel (2) to rotate with the chain belt (3), so that the driving connecting plate 4 moves with the mounting seat (5), the connecting piece (6), the lamp tube (7), the guide rail (8), the slider (9), the ring plate (10), and the air bag (11). When the lamp tube (7) enters the water from a horizontal state, the air injection assembly injects air into the air bag (11) to expand it, so that it fits with the lamp tube (7). When the lamp tube (7) rotates to an oblique downward position but has not yet entered the water, the end of the lamp tube (7) away from the connecting plate (4) is obliquely downward. At this time, under the action of gravity, the ring plate (10) moves downward with the air bag (11), so that impurities on the surface of the lamp tube (7) are brought downward, so that the lamp tube (7) is cleaned. Then the lamp tube (7) enters the water, and the impurities accumulated at the bottom of the lamp tube (7) are washed away by the water. S3. The light emitted by the lamp tube (7) can attract fish to approach. As the lamp tube (7) moves, the fish are guided to the fishway entrance. Then, the lamp tube (7) leaves the water. The fish find that the fishway entrance moves inward. The lamp tube (7) leaves the water. At this time, the air injection component stops injecting air. At this time, the air bag (11) becomes deflated and separates from the surface of the lamp tube (7). When the lamp tube (7) leaves the water, impurities will adhere to its surface. As the lamp tube (7) continues to move, the lamp tube (7) rotates with the bottom end tilted upward. At this time, under the action of gravity, the surrounding The plate (10) moves in a direction close to the connecting plate (4). During this process, since the air bag (11) and the light tube (7) are not in contact, impurities will not be brought to a position close to the connecting plate (4) by the air bag (11). Subsequently, when the light tube (7) moves again to enter the water, the impurities on the surface of the light tube (7) before entering the water can be continuously cleaned according to the same principle to prevent the impurities from affecting its luminous effect. The movement of the light tube (7) is guided in coordination with the adjustment flow field generated, so that fish can be better guided to the fishway outlet.

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