Device and method for collecting and transporting fish in fishway maintenance and cleaning period

Abstract

The invention relates to the technical field of water conservancy and hydropower ecological protection, in particular to a fish collecting and transporting device and method in the fishway overhauling and cleaning period. The fish collecting and transporting device comprises a fishway arranged on a bank slope on one side of the dam, and a vertical seam opening and closing mechanism is arranged on the partition plate assembly. A track is arranged on one side of the fishway; a turntable structure is arranged on the track; a fish passing square hole and a water passing hole are formed in the fishway side wall of each fishway pond chamber; a gate is arranged on the fish passing square hole; a fish inlet pipe, a fish outlet pipe and a water conduit are arranged on the turntable structure; the fish inlet pipe is used for being in butt joint with a fish passing square hole in a downstream pool chamber adjacent to the pool chamber to be overhauled and cleaned. The outlet end of the fish outlet pipe is arranged over the upstream pond chamber adjacent to the pond chamber to be overhauled and cleaned. A water pump is arranged on the water conduit; the water inlet end of the water diversion pipe is used for being connected with a water passing hole of an upstream tank chamber adjacent to the to-be-overhauled cleaning tank chamber; and the water outlet end of the water conduit is arranged right above the downstream tank chamber adjacent to the to-be-overhauled cleaning tank chamber.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy and hydropower ecological protection, and in particular to a device and method for collecting and transporting fish during the maintenance and cleaning period of a fishway. Background Art

[0002] As the most widely used fish passage facility at home and abroad, vertical slot fishways inevitably need to be inspected and cleaned during actual operation. Conventional inspection and cleaning methods are relatively primitive, generally requiring manual or mechanical cleaning after closing the gate. This cleaning method is time-consuming and labor-intensive, and is prone to accidents. Based on this, the industry has developed several fishway internal cleaning technologies and devices.

[0003] For example, the patent application with publication number CN109267547A discloses a portable device for intercepting and cleaning garbage inside a fishway, which sets a number of triangular frame nets and a number of guide rails arranged symmetrically in pairs inside the fishway, and intercepts and removes garbage by utilizing the autonomous selectivity of migration of "upstream fish" and "floating garbage". This technology will change the original internal structure of the fishway, and the interception and cleaning device will change the hydraulic conditions inside the fishway. Whether fish can adapt to the new hydraulic environment has not been effectively verified. Moreover, after interception and cleaning, the water level inside the fishway needs to be lowered and emptied before the cleaning personnel enter the fishway to clean it. The cleaning process will inevitably affect the normal operation of the fishway.

[0004] For example, the patent with announcement number CN210507341U discloses a blocking device for preventing river floating objects from entering the fishway. The blocking device is installed at the inlet or outlet of the fishway to prevent floating objects and garbage from entering the pool room from above the submerged fishway when the river water level drops. At the same time, it can be used for staff to walk, providing convenient conditions for staff to inspect the fishway pool room. This technology can only reduce the garbage entering the fishway, but cannot solve the problem of cleaning the internal garbage during the operation of the fishway.

[0005] Another example is the patent with publication number CN118390472A, which discloses a vertical seam fishway integrated with transportation, inspection and cleaning and its operation method. When the fishway pool is under maintenance, the upstream and downstream partitions of the fishway pool to be repaired are sealed and closed, and a gap is opened on the riverside wall of each level of the fishway pool, and a movable grafted fishway is connected to allow the upstream water to flow along the grafted fishway to create dry land working conditions for the fishway pool to be repaired. The grafted fishway of this technology is an arc-shaped structure, which occupies a large space and is only suitable for the maintenance of the fishway pool along one side of the river. For the fishways with multiple back-and-forth bends on the bank slope, it is difficult to free up plane space for drainage.

[0006] Therefore, it is necessary to make optimization and improvements on the basis of traditional fishways, and to innovatively apply facilities for efficient transfer of fish in fishways under limited space conditions (especially in mountainous canyon areas), which is more suitable for improving the fish passing effect in actual engineering applications. Summary of the invention

[0007] The main purpose of the present invention is to provide a device and method for collecting and transporting fish during the maintenance and cleaning period of a fishway, aiming to solve the above-mentioned technical problems.

[0008] To achieve the above-mentioned purpose, on the one hand, the present invention proposes a fish collection and transportation device during the maintenance and cleaning period of a fishway, comprising a fishway arranged on a bank slope on one side of a dam, wherein the fishway is a trough-shaped fishway composed of a fishway bottom plate and fishway side walls on both sides thereof, a plurality of partition assemblies are arranged in the fishway, and a fishway pool chamber is formed between two adjacent partition assemblies; the inner ends of the long partitions and the short partitions on each partition assembly are arranged at intervals to form a vertical seam, and a vertical seam opening and closing mechanism is arranged on the partition assembly for opening or closing the vertical seam; a track is arranged on one side of the fishway; a turntable structure is arranged on the track; a fish passing means is arranged on the fishway side wall of each fishway pool chamber. a fish passage hole and a water-passing hole; a gate is arranged on the fish-passing square hole; a fish inlet pipe and a fish outlet pipe are arranged on the turntable structure; the fish inlet pipe is used to connect with the fish-passing square hole on the downstream chamber adjacent to the chamber to be repaired and cleaned; the outlet end of the fish outlet pipe is arranged just above the upstream chamber adjacent to the chamber to be repaired and cleaned; the elevation of the water-passing hole is located at the normal operating water level of the fishway chamber; a water diversion pipe is fixedly installed on the turntable structure, and a water pump is arranged on the water diversion pipe; the water inlet end of the water diversion pipe is used to connect with the water-passing hole of the upstream chamber adjacent to the chamber to be repaired and cleaned; the water outlet end of the water diversion pipe is arranged just above the downstream chamber adjacent to the chamber to be repaired and cleaned.

[0009] Preferably, the vertical seam opening and closing mechanism includes an L-shaped lifting foot, a first electric cylinder and a connecting rod; the L-shaped lifting foot is hinged at the inner end of the long partition; the first electric cylinder is installed on the surface on the upstream side of the long partition, one end of the connecting rod is hinged to the L-shaped lifting foot, and the other end is hinged to the telescopic rod of the first electric cylinder; after the telescopic rod of the first electric cylinder is extended, it pushes the connecting rod, driving the L-shaped lifting foot to flip over and overlap the short partition; when the telescopic rod of the first electric cylinder retracts, it pulls the connecting rod, driving the L-shaped lifting foot to rotate and rest against the end face of the long partition, and the L-shaped lifting foot is perpendicular to the long partition.

[0010] Preferably, the turntable structure includes a turntable housing and an impeller arranged inside the turntable housing; a drive motor is installed at the center of the vertical panel of the turntable housing; the output shaft of the drive motor is connected to the impeller; a wheel pair is installed at the bottom of the turntable housing, and the wheel pair cooperates with the track so that the turntable structure can run along the track; the fish inlet pipe is installed on the vertical panel of the turntable housing close to the side wall of the fishway, and the fish outlet pipe is installed on the outer cylindrical surface of the turntable housing.

[0011] Preferably, the water inlet end of the water diversion pipe is connected to the water hole through an expansion joint, the expansion joint is slidably inserted in the inner hole of the water inlet end of the water diversion pipe, and a third electric cylinder is installed on the outer peripheral surface of the water inlet end of the water diversion pipe; and the expansion rod of the third electric cylinder is hinged on the expansion joint.

[0012] Preferably, the fish inlet pipe is a telescopic tube structure, comprising an outer tube body and an inner tube body slidably inserted in the outer tube body; the end of the inner tube body close to the fishway side wall is arranged as a bell mouth, and the bell mouth is used to abut against the fish passing square hole of the fishway side wall; a second electric cylinder is installed on the outer tube body; the telescopic rod of the second electric cylinder is hinged on the inner tube body.

[0013] Preferably, a plurality of nozzles are arranged on each square hole for passing fish; a pipe is buried inside the side wall of the fishway; the nozzle is connected to the pipe, and the water inlet end of the pipe extends into the water body in front of the dam; and a flow regulating valve is arranged at the water inlet end of the pipe.

[0014] Preferably, a plurality of gate opening and closing motors are arranged on the top surface of the side wall of the fishway; and each gate opening and closing motor is correspondingly arranged directly above the square hole for passing fish, the gate on the square hole for passing fish is connected to the corresponding gate opening and closing motor, and the gate opening and closing motor is used to drive the gate to move up and down to open or close the square hole for passing fish; the elevation of the square hole for passing fish is located below the normal operating water level of the fishway pool chamber.

[0015] On the other hand, the present invention also provides a method for collecting and transporting fish during the maintenance and cleaning period of a fishway, using the above-mentioned fish collecting and transporting device, comprising the following steps:

[0016] S1. Determine the pool chamber to be repaired and cleaned: inspect each fishway pool chamber on the fishway, determine the pool chamber to be repaired and cleaned, mark the fishway pool chamber to be repaired and cleaned as pool chamber B, mark the upstream pool chamber adjacent to the pool chamber to be repaired and cleaned as pool chamber A, and mark the downstream pool chamber adjacent to the pool chamber to be repaired and cleaned as pool chamber C;

[0017] S2. Connect the turntable structure: move the turntable structure to the position of chamber B, connect the fish inlet pipe on the turntable structure with the square fish hole of chamber C; set the outlet end of the fish outlet pipe just above chamber A; connect the water inlet end of the water diversion pipe with the water hole of chamber A, and set the water outlet end of the water diversion pipe just above chamber C;

[0018] S3, chamber closing: closing the vertical slits on the baffle assemblies on the upstream and downstream sides of chamber B;

[0019] S4, start the water pump on the water diversion pipe, and divert the water flow in chamber A to chamber C;

[0020] S5, open the gate on the square hole for passing fish in chamber C, and the gates on the square holes for passing fish in other fishway chambers remain in the closed state;

[0021] S6. After the fish enters the turntable structure from the fish-passing square hole through the fish-inlet pipe, it is transferred through the turntable structure and then slides from the fish-outlet pipe into the pool chamber A, completing the transfer operation.

[0022] Preferably, in step S2, when the fish inlet pipe is connected to the fish passing square hole of the pool chamber C, the second electric cylinder is started, and the telescopic rod of the second electric cylinder is extended, driving the inner tube body to extend from the outer tube body, and the trumpet mouth of the inner tube body abuts against the fish passing square hole of the fishway side wall; when the water inlet end of the water diversion pipe is connected to the water passing hole of the pool chamber A, the third electric cylinder is started, and the telescopic rod of the third electric cylinder is extended, driving the telescopic joint to extend from the water inlet end of the water diversion pipe, and making the telescopic joint abut against the water passing hole of the fishway side wall; the operation method of step S3 is: start the first electric cylinder, so that the telescopic rod of the first electric cylinder is extended and then pushes the connecting rod, driving the L-shaped lifting foot to flip and overlap the short partition.

[0023] Preferably, in step S5, after opening the gate on the square hole for passing fish on the pool chamber C, the nozzle at the square hole for passing fish on the pool chamber C is turned on, the water in front of the dam is diverted by a pipe and sprayed on the square hole for passing fish in the pool chamber C, and the flow regulating valve on the pipe is used to adjust the water flow spraying speed to create conditions for attracting fish.

[0024] Due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0025] (1) In the present invention, a long-sequence continuous operation mechanism under the condition of complex arrangement of fishways is constructed. By arranging a track on one side of the fishway and arranging a turntable structure on the track, when it is necessary to inspect and clean a certain pool chamber on the fishway, the turntable structure is moved to the position of the fishway pool chamber to be inspected and cleaned, and the fish inlet pipe on the turntable structure is connected to the fish passing square hole on the downstream pool chamber adjacent to the pool chamber to be inspected and cleaned. The outlet end of the fish outlet pipe is arranged directly above the upstream pool chamber adjacent to the pool chamber to be inspected and cleaned, and at the same time, the water of the upstream pool chamber adjacent to the pool chamber to be inspected and cleaned is diverted to the downstream pool chamber adjacent to the pool chamber to be inspected and cleaned by using a water diversion pipe. After the fish enter the turntable structure from the fish passing square hole through the fish inlet pipe, they are transferred through the turntable structure and then slide from the fish outlet pipe to the upstream pool chamber adjacent to the pool chamber to be inspected and cleaned, completing the transfer operation.

[0026] (2) In the present invention, an independent working space for the inspection and cleaning of the inside of the fishway is created. A vertical slit opening and closing mechanism is provided on the baffle assembly to open or close the vertical slit. When inspection and cleaning are performed, the vertical slits on the baffle assemblies on the upstream and downstream sides of the fishway chamber to be inspected and cleaned are closed, so that the chamber is in a waterless state for easy cleaning and inspection. When the vertical slits on the baffle assembly on the upstream side of the fishway chamber to be inspected and cleaned are closed, the water level in the upstream chamber adjacent to the chamber to be inspected and cleaned continues to rise until it is higher than the water hole. By starting the water pump on the water diversion pipe, the water in the upstream chamber adjacent to the chamber to be inspected and cleaned can be drained to the downstream chamber adjacent to the chamber to be inspected and cleaned, thereby ensuring the smoothness of the fishway operation process.

[0027] (3) In the present invention, a fishway "transport-inspection-cleaning" multi-state operation mode guarantee idea is constructed. By adopting the fish collection and transportation device and method during the fishway inspection and cleaning period provided in this embodiment, a fishway "transport-inspection-cleaning" multi-state operation mode guarantee idea is constructed. A fish collection and transportation facility that is suitable for long-series operation and multi-winding arrangement of fishways is designed, which realizes a harmonious situation in which the fishway operation, inspection, and cleaning processes are implemented in parallel without interfering with each other, greatly improving the fishway operation efficiency and further updating the fishway "transport-inspection-cleaning" multi-state operation mode guarantee idea. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0029] Figure 1 This is a general plan view of the fish collection and transportation device during the fishway maintenance and cleaning period provided by the present invention;

[0030] Figure 2 The three-dimensional structure of the turntable structure and the fishway in the present invention when they are matched Figure 1 , one side of the fishway side wall is not shown in the figure;

[0031] Figure 3 The three-dimensional structure of the turntable structure and the fishway in the present invention when they are matched Figure 2 , one side of the fishway side wall is not shown in the figure;

[0032] Figure 4 This is a front view of the turntable structure of the present invention when it is matched with the fishway, and the vertical panel of the turntable housing is not shown in the figure;

[0033] Figure 5It is a back view of the turntable structure and the fishway in the present invention when they are matched;

[0034] Figure 6 It is a schematic diagram of the fish inlet pipe and the water guide pipe being connected to the fish square hole and the water hole on the side wall of the fishway respectively in the present invention;

[0035] Figure 7 It is a schematic diagram of the present invention in which the fish inlet pipe and the water guide pipe are separated from the square fish holes and the water holes on the side wall of the fishway respectively;

[0036] Figure 8 It is a schematic diagram of the L-shaped legs in the present invention when they are in a closed state.

[0037] Explanation of the accompanying drawings: 1. Dam; 2. Fishway; 2a. Fishway pool; 3. Fishway bottom plate; 4. Fishway side wall; 4a. Square hole for fish passing; 4b. Water hole; 5. Long partition; 6. Short partition; 7. Track; 8. Turntable structure; 8a. Turntable shell; 8b. Impeller; 8c. Drive motor; 8d. Wheel pair; 9. Fish inlet pipe; 9a. Outer pipe body; 9b. Inner pipe body; 10. Fish outlet pipe; 11. L-shaped lifting foot; 12. First electric cylinder; 13. Connecting rod; 14. Second electric cylinder; 15. Water diversion pipe; 15a. Expansion joint; 16. Water pump; 17. Third electric cylinder; 18. Sprinkler; 19. Pipeline; 20. Flow regulating valve; 21. Gate opening and closing motor. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] As shown in the accompanying drawings, a fish collection and transportation device for fishway maintenance and cleaning period includes a fishway 2 arranged on the bank slope on one side of the dam 1, and the fishway 2 is a trough-shaped fishway composed of a fishway bottom plate 3 and fishway side walls 4 on both sides thereof, and a plurality of partition assemblies are arranged in the fishway 2, and a fishway pool chamber is formed between two adjacent partition assemblies; the inner ends of the long partition 5 and the short partition 6 on each partition assembly are spaced apart from each other to form a vertical slit, and a vertical slit opening and closing mechanism is arranged on the partition assembly for opening or closing the vertical slit.

[0042] A track 7 is arranged on one side of the fishway 2; a turntable structure 8 is arranged on the track 7; a fish passing square hole 4a and a water passing hole 4b are arranged on the fishway side wall 4 of each fishway pool chamber; a gate is arranged on the fish passing square hole 4a.

[0043] The turntable structure 8 is provided with a fish inlet pipe 9 and a fish outlet pipe 10; the fish inlet pipe 9 is used to connect with the fish passing square hole 4a on the downstream chamber adjacent to the chamber to be repaired and cleaned; the outlet end of the fish outlet pipe 10 is arranged directly above the upstream chamber adjacent to the chamber to be repaired and cleaned. The elevation of the water hole 4b is located at the normal operating water level of the fishway chamber; a water diversion pipe 15 is fixedly installed on the turntable structure 8, and a water pump 16 is arranged on the water diversion pipe 15; the water inlet end of the water diversion pipe 15 is used to connect with the water passing hole 4b of the upstream chamber adjacent to the chamber to be repaired and cleaned; the water outlet end of the water diversion pipe 15 is arranged directly above the downstream chamber adjacent to the chamber to be repaired and cleaned.

[0044] Combination Figure 8As shown, the vertical seam opening and closing mechanism includes an L-shaped lifting foot 11, a first electric cylinder 12 and a connecting rod 13; the L-shaped lifting foot 11 is hinged at the inner end of the long partition 5; the first electric cylinder 12 is installed on the surface on the upstream side of the long partition 5, one end of the connecting rod 13 is hinged to the L-shaped lifting foot 11, and the other end is hinged to the telescopic rod of the first electric cylinder 12; after the telescopic rod of the first electric cylinder 12 is extended, it pushes the connecting rod 13, driving the L-shaped lifting foot 11 to flip over and overlap the short partition 6; when the telescopic rod of the first electric cylinder 12 retracts, it pulls the connecting rod 13, driving the L-shaped lifting foot 11 to rotate and rest against the end face of the long partition 5, and the L-shaped lifting foot 11 is perpendicular to the long partition 5.

[0045] Combination Figure 2 As shown, the turntable structure 8 includes a turntable housing 8a and an impeller 8b arranged inside the turntable housing 8a; a drive motor 8c is installed at the center of the vertical panel of the turntable housing 8a; the output shaft of the drive motor 8c is connected to the impeller 8b; a wheel pair 8d is installed at the bottom of the turntable housing 8a, and the wheel pair 8d cooperates with the track 7 so that the turntable structure 8 can run along the track 7; the fish inlet pipe 9 is installed on the vertical panel of the turntable housing 8a close to the fishway side wall 4, and the fish outlet pipe 10 is installed on the outer cylindrical surface of the turntable housing 8a.

[0046] Combination Figure 6 and Figure 7 As shown, the water inlet end of the water guide pipe 15 is connected to the water hole 4b through an expansion joint 15a, and the expansion joint 15a is slidably inserted in the inner hole of the water inlet end of the water guide pipe 15, and a third electric cylinder 17 is installed on the outer peripheral surface of the water inlet end of the water guide pipe 15; and the expansion rod of the third electric cylinder 17 is hinged on the expansion joint 15a. Specifically, in order to ensure the sealing performance, a disc-shaped body is provided at the end of the expansion joint 15a, and a sealing gasket is provided on the end surface of the disc-shaped body. When the disc-shaped body on the expansion joint 15a is connected to the fishway side wall 4, the sealing gasket on the disc-shaped body plays a sealing role. When the turntable structure 8 needs to move on the track 7, the expansion joint 15a is controlled to be retracted by using the third electric cylinder 17 to avoid interference during movement.

[0047] Combination Figure 6 and Figure 7As shown, the fish inlet pipe 9 is a telescopic pipe structure, including an outer tube body 9a and an inner tube body 9b slidably inserted in the outer tube body 9a; the inner tube body 9b is provided with a bell mouth at one end close to the fishway side wall 4, and the bell mouth is used to abut against the fish passing square hole 4a of the fishway side wall 4; a second electric cylinder 14 is installed on the outer tube body 9a; the telescopic rod of the second electric cylinder 14 is hinged on the inner tube body 9b. In order to ensure the sealing between the bell mouth of the inner tube body 9b and the fishway side wall 4, a sealing ring can be bonded on the bell mouth. When the turntable structure 8 needs to move on the track 7, the inner tube body 9b is retracted by controlling the second electric cylinder 14 to avoid interference during movement.

[0048] Combination Figure 3 As shown, a plurality of nozzles 18 are provided on each square hole 4a for passing fish; a pipe 19 is buried inside the side wall 4 of the fishway; the nozzle 17 is connected to the pipe 19, and the water inlet end of the pipe 19 extends into the water body in front of the dam 1; and a flow regulating valve 20 is provided at the water inlet end of the pipe 19.

[0049] Combination Figure 3 As shown, in order to conveniently control the opening and closing of the gate of the fish passing square hole 4a, a plurality of gate opening and closing motors 21 are arranged on the top surface of the fishway side wall 4; and each gate opening and closing motor 21 is correspondingly arranged directly above the fish passing square hole 4a, and the gate on the fish passing square hole 4a is connected to the corresponding gate opening and closing motor 21, and the gate opening and closing motor 21 is used to drive the gate to move up and down to open or close the fish passing square hole 4a; the elevation of the fish passing square hole 4a is located below the normal operating water level of the fishway pool chamber.

[0050] Combination Figure 3 As shown, this embodiment also provides a method for collecting and transporting fish during the maintenance and cleaning period of a fishway, using the above-mentioned fish collecting and transporting device, including the following steps:

[0051] S1. Determine the pool chamber to be repaired and cleaned: inspect each fishway pool chamber on the fishway 2, determine the pool chamber to be repaired and cleaned, mark the fishway pool chamber to be repaired and cleaned as pool chamber B, mark the upstream pool chamber adjacent to the pool chamber to be repaired and cleaned as pool chamber A, and mark the downstream pool chamber adjacent to the pool chamber to be repaired and cleaned as pool chamber C;

[0052] S2. Connect the turntable structure 8: Move the turntable structure 8 to the position of the pool chamber B, connect the fish inlet pipe 9 on the turntable structure 8 with the fish square hole 4a of the pool chamber C; set the outlet end of the fish outlet pipe 10 just above the pool chamber A; connect the water inlet end of the water guide pipe 15 with the water hole 4b of the pool chamber A, and set the water outlet end of the water guide pipe 15 just above the pool chamber C;

[0053] S3, chamber closing: closing the vertical slits on the baffle assemblies on the upstream and downstream sides of chamber B;

[0054] S4, start the water pump 16 on the water diversion pipe 15, and divert the water flow in the pool chamber A to the pool chamber C;

[0055] S5, open the gate on the square hole 4a on the pool C, and the gates on the square holes 4a on the other fishway pools are still closed;

[0056] S6, after the fish enters the turntable structure 8 through the fish inlet pipe 9 from the fish passing square hole 4a, it is transferred through the turntable structure 8 and then slides from the fish outlet pipe 10 into the pond chamber A, completing the transfer operation.

[0057] In step S2, when the fish inlet pipe 9 is connected to the fish passing square hole 4a of the pool chamber C, the second electric cylinder 14 is started, and the telescopic rod of the second electric cylinder 14 is extended, driving the inner tube body 9b to extend from the outer tube body 9a, and the bell mouth of the inner tube body 9b abuts on the fish passing square hole 4a of the fishway side wall 4; when the water inlet end of the water diversion pipe 15 is connected to the water passing hole 4b of the pool chamber A, the third electric cylinder 17 is started, and the telescopic rod of the third electric cylinder 17 is extended, driving the telescopic joint 15a to extend from the water inlet end of the water diversion pipe 15, and making the telescopic joint 15a abut on the water passing hole 4b of the fishway side wall 4.

[0058] The operation method of step S3 is: start the first electric cylinder 12 so that the telescopic rod of the first electric cylinder 12 extends and then pushes the connecting rod 13, driving the L-shaped lifting leg 11 to flip over and overlap the short partition board 6.

[0059] In step S5, after opening the gate on the square hole 4a on the pool C, the nozzle 18 at the square hole 4a on the pool C is turned on, and the water in front of the dam 1 is diverted and sprayed on the square hole 4a of the pool C by using the pipe 19, and the water flow rate is adjusted by using the flow regulating valve 20 on the pipe 19 to create conditions for attracting fish.

[0060] In step S6, when the fish are transported, the impeller 8b is driven to rotate by starting the driving motor 8c, and the fish entering the turntable housing 8a enters the fish outlet pipe 10 and slides into the pool chamber A under the action of centrifugal force.

[0061] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A fish collection and transportation device for fishway maintenance and cleaning, comprising a fishway (2) arranged on a bank slope on one side of a dam (1), wherein the fishway (2) is a trough-shaped fishway composed of a fishway bottom plate (3) and fishway side walls (4) on both sides thereof, wherein a plurality of baffle assemblies are arranged in the fishway (2), and a fishway pool is formed between two adjacent baffle assemblies; the inner side ends of the long baffle (5) and the short baffle (6) on each baffle assembly are arranged to form a vertical seam at intervals, and the characteristics are as follows: A vertical slot opening and closing mechanism is provided on the partition assembly for opening or closing the vertical slot; A track (7) is arranged on one side of the fishway (2); a turntable structure (8) is arranged on the track (7); a fish passing square hole (4a) and a water passing hole (4b) are arranged on the fishway side wall (4) of each fishway pool chamber; a gate is arranged on the fish passing square hole (4a); A fish inlet pipe (9) and a fish outlet pipe (10) are arranged on the turntable structure (8); the fish inlet pipe (9) is used to be connected to a fish passing square hole (4a) on a downstream chamber adjacent to the chamber to be repaired and cleaned; the outlet end of the fish outlet pipe (10) is arranged directly above the upstream chamber adjacent to the chamber to be repaired and cleaned; The elevation of the water hole (4b) is located at the normal operating water level of the fishway chamber; a water diversion pipe (15) is fixedly installed on the turntable structure (8), and a water pump (16) is arranged on the water diversion pipe (15); the water inlet end of the water diversion pipe (15) is used to connect with the water hole (4b) of the upstream chamber adjacent to the chamber to be repaired and cleaned; the water outlet end of the water diversion pipe (15) is arranged directly above the downstream chamber adjacent to the chamber to be repaired and cleaned.

2. A fish collection and transportation device for fishway maintenance and cleaning as claimed in claim 1, characterized in that: The vertical seam opening and closing mechanism comprises an L-shaped lifting foot (11), a first electric cylinder (12) and a connecting rod (13); the L-shaped lifting foot (11) is hinged to the inner end of the long partition (5); the first electric cylinder (12) is installed on the surface of the upstream side of the long partition (5); one end of the connecting rod (13) is hinged to the L-shaped lifting foot (11), and the other end is hinged to the telescopic rod of the first electric cylinder (12); The telescopic rod of the first electric cylinder (12) is extended to push the connecting rod (13), thereby driving the L-shaped lifting foot (11) to flip over and overlap the short partition (6); When the telescopic rod of the first electric cylinder (12) retracts, the connecting rod (13) is pulled, driving the L-shaped lifting foot (11) to rotate and abut against the end surface of the long partition (5), and the L-shaped lifting foot (11) is perpendicular to the long partition (5).

3. A fish collection and transportation device for fishway maintenance and cleaning as claimed in claim 1, characterized in that: The turntable structure (8) comprises a turntable housing (8a) and an impeller (8b) arranged inside the turntable housing (8a); a driving motor (8c) is installed at the center of a vertical panel of the turntable housing (8a); an output shaft of the driving motor (8c) is connected to the impeller (8b); a wheel pair (8d) is installed at the bottom of the turntable housing (8a), and the wheel pair (8d) cooperates with the track (7) so that the turntable structure (8) can run along the track (7); the fish inlet pipe (9) is installed on a vertical panel of the turntable housing (8a) close to the fishway side wall (4), and the fish outlet pipe (10) is installed on the outer cylindrical surface of the turntable housing (8a).

4. The fish collection and transportation device for fishway maintenance and cleaning as claimed in claim 1, characterized in that: The water inlet end of the water diversion pipe (15) is connected to the water passage hole (4b) via a telescopic joint (15a); the telescopic joint (15a) is slidably inserted into the inner hole of the water inlet end of the water diversion pipe (15); and a third electric cylinder (17) is installed on the outer peripheral surface of the water inlet end of the water diversion pipe (15); and the telescopic rod of the third electric cylinder (17) is hinged on the telescopic joint (15a).

5. The fish collecting and transporting device for fishway maintenance and cleaning as claimed in claim 1, characterized in that: The fish inlet pipe (9) is a telescopic pipe structure, comprising an outer pipe body (9a) and an inner pipe body (9b) slidably inserted in the outer pipe body (9a); one end of the inner pipe body (9b) close to the fishway side wall (4) is arranged as a bell mouth, and the bell mouth is used to abut against the fish passing square hole (4a) of the fishway side wall (4); a second electric cylinder (14) is installed on the outer pipe body (9a); and the telescopic rod of the second electric cylinder (14) is hinged on the inner pipe body (9b).

6. The fish collection and transportation device for fishway maintenance and cleaning as claimed in claim 1, characterized in that: A plurality of nozzles (18) are arranged on each square hole (4a) for passing fish; a pipe (19) is buried inside the side wall (4) of the fishway; the nozzle (17) is connected to the pipe (19), and the water inlet end of the pipe (19) extends into the water body in front of the dam (1); and a flow regulating valve (20) is arranged at the water inlet end of the pipe (19).

7. The fish collection and transportation device for fishway maintenance and cleaning as claimed in claim 1, characterized in that: A plurality of gate opening and closing motors (21) are arranged on the top surface of the fishway side wall (4); each gate opening and closing motor (21) is arranged correspondingly just above the fish passing square hole (4a); the gate on the fish passing square hole (4a) is connected to the corresponding gate opening and closing motor (21); the gate opening and closing motor (21) is used to drive the gate to move up and down to open or close the fish passing square hole (4a); the elevation of the fish passing square hole (4a) is located below the normal operating water level of the fishway pool chamber.

8. A method for collecting and transporting fish during the maintenance and cleaning period of a fishway, characterized in that: The fish collecting and transporting device according to any one of claims 1 to 7 comprises the following steps: S1. Determine the chamber to be repaired and cleaned: inspect each fishway chamber on the fishway (2) to determine the chamber to be repaired and cleaned, mark the fishway chamber to be repaired and cleaned as chamber B, mark the upstream chamber adjacent to the chamber to be repaired and cleaned as chamber A, and mark the downstream chamber adjacent to the chamber to be repaired and cleaned as chamber C; S2, connecting the turntable structure (8): moving the turntable structure (8) to the position of the pool chamber B, connecting the fish inlet pipe (9) on the turntable structure (8) to the fish square hole (4a) of the pool chamber C; setting the outlet end of the fish outlet pipe (10) just above the pool chamber A; connecting the water inlet end of the water guide pipe (15) to the water hole (4b) of the pool chamber A, and setting the water outlet end of the water guide pipe (15) just above the pool chamber C; S3, chamber closing: closing the vertical slits on the baffle assemblies on the upstream and downstream sides of chamber B; S4, start the water pump (16) on the water diversion pipe (15), and divert the water flow in the pool chamber A to the pool chamber C; S5, open the gate on the square hole (4a) for passing fish on chamber C, and the gates on the square holes (4a) for passing fish on other fishway chambers remain in a closed state; S6. After the fish enters the turntable structure (8) through the fish inlet pipe (9) from the fish passing square hole (4a), it is transferred through the turntable structure (8) and then slides down from the fish outlet pipe (10) into the pond chamber A, completing the transfer operation.

9. A method for collecting and transporting fish during the maintenance and cleaning period of a fishway as claimed in claim 8, characterized in that: In the step S2, when the fish inlet pipe (9) is connected to the fish passing square hole (4a) of the pool chamber C, the second electric cylinder (14) is started, and the telescopic rod of the second electric cylinder (14) is extended, driving the inner tube body (9b) to extend from the outer tube body (9a), and the bell mouth of the inner tube body (9b) is abutted against the fish passing square hole (4a) of the fishway side wall (4); When the water inlet end of the water guide pipe (15) is connected to the water through hole (4b) of the pool chamber A, the third electric cylinder (17) is started, and the telescopic rod of the third electric cylinder (17) is extended, driving the telescopic joint (15a) to extend from the water inlet end of the water guide pipe (15), and making the telescopic joint (15a) abut against the water through hole (4b) of the side wall (4) of the fishway; The operation method of step S3 is: start the first electric cylinder (12), so that the telescopic rod of the first electric cylinder (12) extends and then pushes the connecting rod (13), driving the L-shaped lifting foot (11) to flip over and overlap the short partition (6).

10. A method for collecting and transporting fish during the maintenance and cleaning period of a fishway as claimed in claim 8, characterized in that: In step S5, after the gate on the fish-passing square hole (4a) on the pool chamber C is opened, the nozzle (18) at the fish-passing square hole (4a) on the pool chamber C is turned on, and the water in front of the dam (1) is diverted and sprayed at the fish-passing square hole (4a) of the pool chamber C by using the pipe (19), and the water flow spraying speed is adjusted by using the flow regulating valve (20) on the pipe (19) to create conditions for attracting fish.

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