A fish passage device for deflecting over a dam and a method of operating the same

Abstract

This invention belongs to the technical field of fish passage devices and discloses a fish passage device for guiding flow over dams and its operating method. It includes a flow guiding channel, with a lifting component disposed on the inner side of the channel. The lifting component includes two sets of drive frames, with three sets of transmission plates rotatably disposed between the two sets of drive frames. A combined arc plate is rotatably disposed on the outer side of the transmission plate away from the drive frames, and a lifting inclined plate is installed on the end of the combined arc plate away from the transmission plates. This invention, through the cooperation of the lifting component and drive plates, facilitates the reduction of slope by repeatedly lifting the inclined structure, thereby reducing the difficulty of fish migration without changing the water flow direction. This avoids affecting the judgment of the fish's swimming direction. Repeated lifting and lowering assists fish in swimming over dams and effectively avoids driving the fish, preventing harm to them, while effectively improving the efficiency of fish overcoming dams.

Description

Technical Field

[0001] This invention belongs to the technical field of fish passage devices, specifically a fish passage device for guiding flow over dams and its operation method. Background Technology

[0002] When fish migrate, they are usually unable to cross dams. Because the dams are high, the fish cannot cross them to spawn, which leads to a series of ecological damages. To avoid this, fish passages are usually set up to help fish cross the dams.

[0003] For example, the invention with publication number CN119824862B discloses a fish passage system and its operation method suitable for low-head overflow dams, including a gate chamber, an upper gate head and a lower gate head set at both ends of the gate chamber, each gate head is equipped with a gate, and the gate has a flow guide opening; a main rotating blade is fixed inside the gate chamber near the flow guide opening, and reciprocating components are symmetrically arranged on both sides of the main rotating blade. The reciprocating components include a rotating rod and a guide rod arranged in parallel. The main rotating blade is connected to the rotating rod of the reciprocating components on both sides through a transmission component; a reciprocating plate is set on the rotating rod, and the reciprocating plate is slidably sleeved on the guide rod. A rotatable flipping rod is set on the reciprocating plate on both sides, and a disturbance frame is fixed on the flipping rod; the flipping rod drives the disturbance frame to flip together, so that the disturbance frame switches between a horizontal state and a vertical state; the water flow at the flow guide opening is converted into power to drive the reciprocating plate on the rotating rod to reciprocate linearly, and the migratory fish are driven upstream to the upstream water area by automatically flipping the disturbance frame.

[0004] The existing fishway structure is relatively complex, and the spiral water flow structure drives the fish directly into contact with them, which may cause damage. At the same time, the existing devices cannot effectively reduce the difficulty of fish crossing the dam, and the turbulence method can affect the fish's judgment of swimming direction.

[0005] Therefore, a fish passage device for diverting flow over a dam and its operation method are proposed to solve the problems raised in the background art. Summary of the Invention

[0006] To address the problems mentioned in the background section, this invention provides a fish channel device for diverting water across a dam and its operation method.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a fish channel device for diverting flow over a dam, comprising a diversion channel, wherein a lifting component is provided on the inner side of the diversion channel;

[0008] The lifting assembly includes two sets of drive frames, three sets of transmission plates are rotatably arranged between the two sets of drive frames, and a combined arc plate is rotatably arranged on the outer side of the transmission plate away from the drive frame. A lifting inclined plate is installed on the outer side of the combined arc plate away from the transmission plate. Several sets of horizontal platforms are installed on the inner side of the flow guide channel, and the horizontal platforms are located between the two sets of lifting inclined plates. The end of the lifting inclined plate away from the combined arc plate is rotatably arranged on the inner side of the flow guide channel. Drive plates are rotatably arranged on the inner side of the front of the two sets of drive frames.

[0009] Preferably, a number of connecting rods are installed between the two sets of drive frames, a number of stabilizing wheels are movably arranged on the top of the drive frame, and a positioning frame is rotatably arranged on the outside of the stabilizing wheels. The positioning frame is fixedly installed at the bottom of the inner side of the guide channel.

[0010] Preferably, a combined shaft is fixedly installed at one end of the transmission plate near the drive frame, and the combined shaft is rotatably disposed inside the two sets of drive frames. A flipping shaft is fixedly installed on the inner side of the transmission plate away from the combined shaft, and the flipping shaft is rotatably disposed inside the lower end of the combined arc plate.

[0011] Preferably, a water flow driving component is provided on the front side of the drive plate, and a scraping component is movably provided on the inner side of the upper end of the flow guide channel.

[0012] Preferably, the water flow drive assembly includes a sliding bracket, the drive plate is rotatably disposed on the inner side of the middle part of the sliding bracket, and two sets of auxiliary wheels are rotatably disposed on the upper end of the sliding bracket near the water flow drive assembly.

[0013] Preferably, the water flow drive assembly includes two sets of limiting brackets, and the limiting brackets are fixedly installed on the top of the inner side of the flow guide channel. A cam is rotatably provided on the inner side of the lower end of the limiting bracket. The cam is rotatably provided on the inner side of the back of the auxiliary wheel. A drive shaft is fixedly installed in the middle of the two sets of cams, and belt drive modules are installed at both ends of the drive shaft. A large rotating blade is rotatably provided on the outer side of the belt drive module away from the drive shaft.

[0014] Preferably, the scraping assembly includes a movable scraper, which is laterally slidably disposed on the top of the horizontal platform. The upper end of the movable scraper is connected to a lead screw slider via a plate, and a reciprocating lead screw is rotatably disposed on the inner side of the lead screw slider. Small rotating blades are fixedly installed at both ends of the reciprocating lead screw. Four sets of movable grooves are opened on the inner side of the movable scraper, and two sets of arc-shaped grooves are opened through both sides of the movable grooves. A coupling module is disposed between the two sets of reciprocating lead screws.

[0015] Preferably, a sliding column is slidably arranged on the inner side of the arc-shaped groove, and a set of movable plates is connected to the bottom of the two sets of sliding columns. The movable plates are slidably arranged on the inner side of the movable groove, and the bottom of the movable plates is in close contact with the top of the lifting inclined plate. Two sets of connecting plates are arranged at both ends of the two sets of sliding columns, and a limit column is installed on the top of the connecting plate. Several sets of counterweights are movably spliced ​​on the outer side of the limit column, and the counterweights are movably arranged on the top of the connecting plate.

[0016] Preferably, a number of fixed shafts are fixedly installed on the inner side of the flow guiding channel, the lifting inclined plate is rotatably arranged on the outer side of the fixed shafts, a flow limiting frame is installed on the back of the flow guiding channel, and a number of overflow ports are opened on the inner side of the flow limiting frame, three sets of limiting guide rods are installed on the inner side of the lower end of the flow guiding channel, the sliding bracket is slidably arranged on the outer side of the limiting guide rods, guide channels are welded and installed on both sides of the flow guiding channel, the large rotating blade and the small rotating blade are rotatably arranged on the inner side of the guide channel, a number of stabilizing guide rods are installed on the inner side of the flow guiding channel, the movable scraper is slidably arranged on the outer side of the stabilizing guide rods, and a weir is provided on the outer side of the flow guiding channel.

[0017] A method for operating a fish passage device for diverting water over a dam:

[0018] S1. The diversion channel is fixedly set inside the dam body. The water flows evenly into the inner side of the flow restriction frame through the overflow outlet. The water inside the flow restriction frame will flow and be discharged from top to bottom through the diversion channel. Some of the water flows through the inside of the guide channel. After the water enters the inside of the guide channel, the flow velocity will be uniform. Under the impact of the water flow, the small rotating blades will rotate. At the same time, the two sets of small rotating blades are kept rotating at a uniform speed through the coupling module. The continuous flow of water will drive the large rotating blades to rotate.

[0019] S2. During the rotation of the large rotating blade, the lower set of drive shafts will be driven to rotate through the belt drive module. At the same time, the outer cam will rotate synchronously. The cam is close to the auxiliary wheel. During the rotation, the cam will push the auxiliary wheel and the sliding bracket to slide laterally along the limit guide rod for adjustment.

[0020] S3. During the movement of the sliding bracket, the drive plate will pull the drive frame to move in the direction of the sliding bracket. During the movement, the positioning frame and the stabilizing wheel will remain in a downward state, so that the drive frame can only slide in the parallel direction of the guide channel. During the sliding process, the transmission plate will drive each set of lifting ramps restricted by the fixed shaft to flip. During the flipping process, the ramps can be lifted to adjust the slope. The cam continues to rotate and the lifting ramps will fall to form a repeated lifting and falling effect.

[0021] S4. During the rotation of the small rotating blade, it will drive the two sets of reciprocating screws to rotate synchronously. At the same time, the screw slider set on the outside will slide laterally along the outside of the reciprocating screw. By adjustment, the movable scraper at the bottom can be moved laterally, thereby using the bottom structure to scrape off the accumulated material on the surface of the horizontal platform. A certain gap is reserved between the movable scraper and the guide channel.

[0022] S5. During the lifting process of the inclined plate, the movable plate will be pushed to slide along the movable groove. At the same time, the sliding column will be steadily lifted along the arc groove. After the inclined plate falls, the counterweight will press down on the movable plate under the action of gravity. The movable plate will reset and keep its bottom in close contact with the surface of the inclined plate. Under the guidance of the water flow, the fish crossing the dam enter the guide channel. When they flow upward and are located on the inclined plate with a large inclination, the inclined plate will be lifted by the internal lifting components to reduce the slope. The fish will quickly enter the next set of horizontal platforms. At the same time, the water flow in the area of ​​the horizontal platform near the combined arc plate will be greatly reduced, and the fish will stop and wait for the next lifting plate to reset.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] This invention, through the coordinated use of lifting components and drive plates, facilitates the reduction of slope by repeatedly lifting the inclined structure, thereby lowering the difficulty of fish migration without altering the water flow direction. This avoids affecting the judgment of the fish's swimming direction. The drive plate pulls the drive frame to slide laterally along the bottom of the stabilizing wheel. During the sliding process, the transmission plate controls the lifting ramp to rotate along the combined shaft. After rotation, the angle of the lifting ramp can be adjusted. When fish are positioned on the lifting ramp and swimming, the ramp is lifted, allowing the fish to quickly traverse a set of steps. Simultaneously, the water flow below briefly changes, providing a short rest for the fish. Through repeated lifting and lowering, the invention assists fish in swimming over the dam, effectively avoiding the use of a driving structure to harm the fish and significantly improving the efficiency of fish crossing the dam.

[0025] This invention, through the combination of a water flow drive component and a guide channel, utilizes the impact of downward-flowing water to provide power, effectively reducing the need for a drive unit and thus lowering costs. It also effectively ensures the stability of the water flow drive. The guide channel guides a stable flow of water into the interior, where it contacts and rotates a large rotating blade. The rotation of the blade is transmitted via a belt drive module, which transfers kinetic energy to control the rotation of the drive shaft. This rotation is then adjusted laterally by two sets of cam structures that drive an auxiliary wheel and a sliding bracket. This lateral sliding action pulls the lifting component for further adjustment. The water flow drive component effectively enhances the stability of the driving force.

[0026] This invention, through the combination of a scraping component and a guide channel, utilizes a water-driven mechanism to control the scraping structure, removing deposits from the fishway surface and reducing algae growth. The small rotating paddle drives a reciprocating screw, which in turn drives a slider to slide stably laterally. This sliding motion causes the movable scraper at the bottom to slide laterally, cleaning the surfaces of the horizontal platform and the lifting ramp. When the lifting ramp is raised, it lifts the movable plate inside the movable scraper, effectively preventing the movable scraper from obstructing the normal adjustment of the lifting ramp. The scraping component effectively reduces debris and algae adhesion, and the water-driven mechanism ensures stable adjustment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the cross-sectional structure of the flow guiding channel of the present invention;

[0029] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0030] Figure 4 For the present invention Figure 2 Enlarged structural diagram at point B;

[0031] Figure 5 This is a schematic cross-sectional view of the scraping component of the present invention;

[0032] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point C;

[0033] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point D;

[0034] Figure 8 For the present invention Figure 1 Enlarged structural diagram at point E;

[0035] Figure 9 For the present invention Figure 2 Enlarged structural diagram at point F.

[0036] In the diagram: 100, diversion channel; 101, horizontal platform; 102, fixed axis; 103, flow restriction frame; 104, overflow outlet; 105, limiting guide rod; 106, guiding channel; 107, stabilizing guide rod; 108, weir.

[0037] 001. Water flow drive assembly; 200. Cam; 201. Large rotating blade; 202. Belt drive module; 203. Drive shaft; 204. Limit bracket;

[0038] 002, Lifting assembly; 300, Drive frame; 301, Sliding bracket; 302, Auxiliary wheel; 303, Connecting rod; 304, Positioning frame; 305, Stabilizing wheel; 306, Drive plate;

[0039] 400. Lifting ramp; 401. Combined shaft; 402. Transmission plate; 403. Tilting shaft; 404. Combined arc plate;

[0040] 003. Scraping assembly; 500. Movable scraper; 501. Lead screw and slider; 502. Reciprocating lead screw; 503. Small rotating blade; 504. Movable groove; 505. Arc groove; 506. Coupling module;

[0041] 600. Movable plate; 601. Sliding column; 602. Connecting plate; 603. Limiting column; 604. Counterweight. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] like Figures 1 to 9 As shown, the present invention provides a fish channel device for diverting flow over a dam, including a diversion channel 100, and a lifting component 002 is provided on the inner side of the diversion channel 100;

[0044] The lifting assembly 002 includes two sets of drive frames 300, three sets of transmission plates 402 are rotatably arranged between the two sets of drive frames 300, and a combined arc plate 404 is rotatably arranged on the outer side of the end of the transmission plate 402 away from the drive frame 300. A lifting inclined plate 400 is installed on the end of the combined arc plate 404 away from the transmission plate 402. Several sets of horizontal platforms 101 are installed on the inner side of the flow channel 100, and the horizontal platforms 101 are located between the two sets of lifting inclined plates 400. The end of the lifting inclined plate 400 away from the combined arc plate 404 is rotatably arranged on the inner side of the flow channel 100. A drive plate 306 is rotatably arranged on the inner side of the front of the two sets of drive frames 300.

[0045] The above scheme is adopted: the flow channel 100 can guide the upstream water to the downstream and provide an installation position for the inner structure. The drive frame 300 can be slidably adjusted along the inner wall of the flow channel 100 by pulling the transmission plate 402. During the sliding process, the combined arc plate 404 can be adjusted by controlling the transmission plate 402. Kinetic energy can be transmitted through the transmission plate 402. The angle of the water flow support surface can be adjusted by raising the inclined plate 400. The horizontal platform 101 can provide a temporary resting area for fish, thereby reducing the difficulty for fish to cross the dam. The drive plate 306 can be movably connected to the water flow drive component 001 to ensure normal driving by water flow.

[0046] like Figure 2 and Figure 4 As shown, several sets of connecting rods 303 are installed between the two sets of drive frames 300. Several sets of stabilizing wheels 305 are movably arranged on the top of the drive frame 300, and a positioning frame 304 is rotatably arranged on the outside of the stabilizing wheel 305. The positioning frame 304 is fixedly installed at the bottom of the inner side of the guide channel 100.

[0047] A combined shaft 401 is fixedly installed on one end of the transmission plate 402 near the drive frame 300, and the combined shaft 401 is rotatably disposed on the inner side of the two sets of drive frames 300. A flipping shaft 403 is fixedly installed on the inner side of the end of the transmission plate 402 away from the combined shaft 401, and the flipping shaft 403 is rotatably disposed on the inner side of the lower end of the combined arc plate 404.

[0048] A water flow drive assembly 001 is provided on the front of the drive plate 306, and a scraping assembly 003 is movably provided on the inner side of the upper end of the guide channel 100.

[0049] The above scheme is adopted: the connecting rod 303 is used to connect the two sets of drive frames 300 to ensure the stability of the structure. The transmission plate 402 can be movably connected to the drive frame 300 through the combination shaft 401, and the flip shaft 403 can be movably connected to the combination arc plate 404.

[0050] like Figure 3 As shown, the water flow drive assembly 001 includes a sliding bracket 301, a drive plate 306 is rotatably disposed on the inner side of the middle part of the sliding bracket 301, and two sets of auxiliary wheels 302 are rotatably disposed on the upper end of the sliding bracket 301 near the water flow drive assembly 001.

[0051] The water flow drive assembly 001 includes two sets of limiting brackets 204, and the limiting brackets 204 are fixedly installed on the top of the inner side of the flow guide channel 100. A cam 200 is rotatably arranged on the inner side of the lower end of the limiting bracket 204. The cam 200 is rotatably arranged on the inner side of the back of the auxiliary wheel 302. A drive shaft 203 is fixedly installed in the middle of the two sets of cams 200, and a belt drive module 202 is installed at both ends of the drive shaft 203. A large rotating blade 201 is rotatably arranged on the outer side of the end of the belt drive module 202 away from the drive shaft 203.

[0052] Using the above scheme: the sliding bracket 301 can slide laterally along the limiting guide rod 105, and the sliding adjustment can ensure the stability of the structure. The auxiliary wheel 302 can limit the cam 200 and ensure that the cam 200 is stably set inside the auxiliary wheel 302. The limiting bracket 204 can further limit the cam 200 and maintain the stability of rotation. Kinetic energy can be transmitted through the internal structure of the belt drive module 202. The impact force of the water flow can be converted into the driving force of the device through the large rotating blade 201.

[0053] like Figure 5 - Figure 7 As shown, the scraping assembly 003 includes a movable scraper 500, which is laterally slidably disposed on the top of the horizontal platform 101. The upper end of the movable scraper 500 is connected to a lead screw slider 501 via a plate, and a reciprocating lead screw 502 is rotatably disposed on the inner side of the lead screw slider 501. Small rotating blades 503 are fixedly installed at both ends of the reciprocating lead screw 502. Four sets of movable grooves 504 are opened on the inner side of the movable scraper 500, and two sets of arc-shaped grooves 505 are opened through both sides of the movable grooves 504. A coupling module 506 is disposed between the two sets of reciprocating lead screws 502.

[0054] Sliding columns 601 are slidably arranged on the inner side of the arc groove 505. A set of movable plates 600 are connected to the bottom of the two sets of sliding columns 601. The movable plates 600 are slidably arranged on the inner side of the movable groove 504. The bottom of the movable plates 600 is close to the top of the lifting inclined plate 400. Two sets of connecting plates 602 are arranged at both ends of the two sets of sliding columns 601. Limiting columns 603 are installed on the top of the connecting plates 602. Several sets of counterweights 604 are movably spliced ​​on the outer side of the limiting columns 603. The counterweights 604 are movably arranged on the top of the connecting plates 602.

[0055] Using the above scheme: the movable scraper 500 can scrape off the deposits on the surface of the horizontal platform 101 and the lifting inclined plate 400 by sliding laterally. The reciprocating screw 502 can drive the screw slider 501 to slide laterally for adjustment. During the adjustment, the position of the movable scraper 500 will change. The impact force of the water flow can be converted into the driving force for the rotation of the reciprocating screw 502 by the small rotating blade 503. The movable plate 600 can be restricted by the movable groove 504, and the arc groove 505 can restrict the sliding column 601 to ensure the stability of the adjustment. The two sets of sliding columns 601 can be connected by the connecting plate 602. After connection, the counterweight 604 on the outside of the limiting column 603 pushes the movable plate 600 down to scrape off the deposits on the surface of the lifting inclined plate 400.

[0056] like Figure 1 , Figure 2 Figure 8 and Figure 9 As shown, several sets of fixed shafts 102 are fixedly installed on the inner side of the flow channel 100. The lifting inclined plate 400 is rotatably set on the outer side of the fixed shafts 102. A flow limiting frame 103 is installed on the back of the flow channel 100, and several sets of overflow ports 104 are opened on the inner side of the flow limiting frame 103. Three sets of limiting guide rods 105 are installed on the inner side of the lower end of the flow channel 100. The sliding bracket 301 is slidably set on the outer side of the limiting guide rods 105. Guide channels 106 are welded and installed on both sides of the flow channel 100. The large rotating blade 201 and the small rotating blade 503 are rotatably set on the inner side of the guide channel 106. Several sets of stabilizing guide rods 107 are installed on the inner side of the flow channel 100. The movable scraper 500 is slidably set on the outer side of the stabilizing guide rods 107. A weir 108 is set on the outer side of the flow channel 100.

[0057] Using the above scheme: the fixed shaft 102 can restrict the lifting inclined plate 400, making it easy to flip and adjust; the flow limiting frame 103 can restrict the water in the area above the dam, avoiding instability caused by large water flow; the overflow port 104 can ensure water flow stability; the limiting guide rod 105 can stabilize and limit the sliding support 301; the guide channel 106 can guide the water flow to provide driving force; the stabilizing guide rod 107 can restrict the lateral sliding movable scraper 500, increasing the stability of adjustment; the flow guiding channel 100 needs to be fixed on the weir 108.

[0058] The working principle and usage process of this invention: The diversion channel 100 is fixedly installed on the inner side of the dam body. The water flow enters the inner side of the flow restriction frame 103 evenly through the overflow port 104. The water flow located inside the flow restriction frame 103 will flow and discharge from top to bottom through the diversion channel 100. Some of the water flow flows through the inside of the guide channel 106. After the water flow enters the inside of the guide channel 106, the flow velocity will be uniform. Under the action of the water flow impact, it will drive the small rotating blades 503 to rotate. At the same time, the two sets of small rotating blades 503 are kept rotating at a uniform speed through the coupling module 506. The continuous flow of water will drive the large rotating blades 201 to rotate.

[0059] During the rotation of the large rotating blade 201, it will drive a set of transmission shafts 203 at the lower end to rotate through the belt drive module 202. At the same time, the outer cam 200 will rotate synchronously. The cam 200 is in close contact with the auxiliary wheel 302. During the rotation, the cam 200 will push the auxiliary wheel 302 and the sliding bracket 301 to slide laterally along the limit guide rod 105 for adjustment.

[0060] During the movement of the sliding bracket 301, the drive plate 306 will pull the drive frame 300 to move towards the sliding bracket 301. During the movement, the positioning frame 304 and the stabilizing wheel 305 will remain in a downward state, so that the drive frame 300 can only slide in the parallel direction of the guide channel 100. During the sliding, the transmission plate 402 will drive each set of lifting ramps 400 restricted by the fixed shaft 102 to rotate. During the rotation, the ramps can be lifted to adjust the slope. The cam 200 will continue to rotate and the lifting ramps 400 will fall to form a repeated lifting and falling effect.

[0061] During the rotation of the small rotating blade 503, it will drive the two sets of reciprocating screws 502 to rotate synchronously. At the same time, the screw slider 501 set on the outside will slide laterally along the outside of the reciprocating screw 502. By adjustment, the movable scraper 500 at the bottom can be moved laterally, thereby using the bottom structure to scrape off the accumulated material on the surface of the horizontal platform 101. A certain gap is reserved between the movable scraper 500 and the guide channel 100.

[0062] As the lifting ramp 400 is raised, it will push the movable plate 600 to slide along the movable groove 504. At the same time, the sliding column 601 will be steadily raised along the arc groove 505. After the lifting ramp 400 falls, the counterweight block 604 will press down on the movable plate 600 under the action of gravity. The movable plate 600 will reset and keep its bottom close to the surface of the lifting ramp 400. Under the guidance of the water flow, the fish that are crossing the dam enter the guide channel 100. When they are flowing upward, when they are on the lifting ramp 400 with a large inclination, the lifting ramp 400 will be raised under the action of the internal lifting component 002 to reduce the slope. The fish will quickly enter the next set of horizontal platforms 101. At the same time, the water flow in the area of ​​the horizontal platform 101 near the combined arc plate 404 will be greatly reduced, and the fish will stop and wait for the next lifting ramp 400 to reset.

[0063] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0064] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fish passage device for diverting water across a dam, comprising a diversion channel (100), characterized in that: A lifting component (002) is provided on the inner side of the flow channel (100). The lifting assembly (002) includes two sets of drive frames (300), three sets of transmission plates (402) are rotatably arranged between the two sets of drive frames (300), and a combined arc plate (404) is rotatably arranged on the outer side of the end of the transmission plate (402) away from the drive frame (300). A lifting inclined plate (400) is installed on the end of the combined arc plate (404) away from the transmission plate (402). Several sets of horizontal platforms (101) are installed on the inner side of the flow channel (100), and the horizontal platforms (101) are located between the two sets of lifting inclined plates (400). The end of the lifting inclined plate (400) away from the combined arc plate (404) is rotatably arranged on the inner side of the flow channel (100). A drive plate (306) is rotatably arranged on the inner side of the front of the two sets of drive frames (300). Among them, a number of connecting rods (303) are installed between the two sets of drive frames (300), and a number of stabilizing wheels (305) are movably arranged on the top of the drive frame (300), and a positioning frame (304) is rotatably arranged on the outside of the stabilizing wheel (305). The positioning frame (304) is fixedly installed on the bottom of the inner side of the guide channel (100). A combined shaft (401) is fixedly installed on one end of the transmission plate (402) near the drive frame (300), and the combined shaft (401) is rotatably disposed on the inner side of the two sets of drive frames (300). A flipping shaft (403) is fixedly installed on the inner side of the end of the transmission plate (402) away from the combined shaft (401), and the flipping shaft (403) is rotatably disposed on the inner side of the lower end of the combined arc plate (404). A water flow drive assembly (001) is provided on the front of the drive plate (306), and a scraping assembly (003) is movably provided on the inner side of the upper end of the guide channel (100). The water flow drive assembly (001) includes a sliding bracket (301), the drive plate (306) is rotatably disposed on the inner side of the middle part of the sliding bracket (301), and two sets of auxiliary wheels (302) are rotatably disposed on the upper end of the sliding bracket (301) near the water flow drive assembly (001). The water flow drive assembly (001) includes two sets of limiting brackets (204), and the limiting brackets (204) are fixedly installed on the top of the inner side of the guide channel (100). A cam (200) is rotatably provided on the inner side of the lower end of the limiting bracket (204). The cam (200) is rotatably provided on the inner side of the back of the auxiliary wheel (302). A drive shaft (203) is fixedly installed in the middle of the two sets of cams (200), and a belt drive module (202) is installed at both ends of the drive shaft (203). A large rotating blade (201) is rotatably provided on the outer side of the belt drive module (202) away from the drive shaft (203). The scraping assembly (003) includes a movable scraper (500), which is laterally slidably disposed on the top of the horizontal platform (101). The upper end of the movable scraper (500) is connected to a lead screw slider (501) via a plate, and a reciprocating lead screw (502) is rotatably disposed on the inner side of the lead screw slider (501). Small rotating blades (503) are fixedly installed at both ends of the reciprocating lead screw (502). Four sets of movable grooves (504) are opened on the inner side of the movable scraper (500), and two sets of arc-shaped grooves (505) are opened through both sides of the movable grooves (504). A coupling module (506) is disposed between the two sets of reciprocating lead screws (502). The inner side of the arc groove (505) is slidably provided with sliding columns (601), and the bottom of the two sets of sliding columns (601) is connected to a set of movable plates (600). The movable plates (600) are slidably provided on the inner side of the movable groove (504). The bottom of the movable plates (600) is close to the top of the lifting inclined plate (400). The two ends of the two sets of sliding columns (601) are provided with two sets of connecting plates (602), and the top of the connecting plates (602) is installed with limit columns (603). Several sets of counterweights (604) are movably spliced ​​on the outer side of the limit columns (603), and the counterweights (604) are movably provided on the top of the connecting plates (602). Several sets of fixed shafts (102) are fixedly installed inside the flow channel (100). The lifting inclined plate (400) is rotatably arranged outside the fixed shafts (102). A flow limiting frame (103) is installed on the back of the flow channel (100), and several sets of overflow ports (104) are opened inside the flow limiting frame (103). Three sets of limiting guide rods (105) are installed inside the lower end of the flow channel (100). The sliding bracket (301) is slidably arranged on the limiting guide rods (105). Outside of the flow channel (105), guide channels (106) are welded and installed on both sides of the flow channel (100). The large rotating blade (201) and the small rotating blade (503) are rotatably arranged inside the guide channel (106). Several sets of stabilizing guide rods (107) are installed inside the flow channel (100). The movable scraper (500) is slidably arranged outside the stabilizing guide rods (107). A weir (108) is provided outside the flow channel (100).

2. The method for operating a fish passage device for diverting water across a dam according to claim 1, characterized in that: S1. The diversion channel (100) is fixedly set on the inner side of the dam body. The water flow enters the inner side of the flow restriction frame (103) evenly through the overflow port (104). The water flow inside the flow restriction frame (103) will flow from top to bottom through the diversion channel (100) and discharge. Some of the water flow flows through the guide channel (106). After the water flow enters the guide channel (106), the flow velocity will be uniform. Under the action of the water flow impact, it will drive the small rotating blade (503) to rotate. At the same time, the two sets of small rotating blades (503) are kept rotating at a uniform speed through the coupling module (506). The continuous flow of water will drive the large rotating blade (201) to rotate. S2. During the rotation of the large rotating blade (201), the belt drive module (202) will drive a set of drive shafts (203) at the lower end to rotate. At the same time, the outer cam (200) will rotate synchronously. The cam (200) is close to the auxiliary wheel (302). During the rotation, the cam (200) will push the auxiliary wheel (302) and the sliding bracket (301) to slide laterally along the limit guide rod (105) for adjustment. S3. During the movement of the sliding bracket (301), the drive plate (306) will pull the drive frame (300) to move towards the sliding bracket (301). During the movement, the positioning frame (304) and the stabilizing wheel (305) will remain in a downward state, so that the drive frame (300) can only slide in the parallel direction of the guide channel (100). During the sliding, the transmission plate (402) will drive each set of lifting ramps (400) restricted by the fixed shaft (102) to flip. During the flipping process, the ramps can be lifted to adjust the slope. The cam (200) will continue to rotate and the lifting ramps (400) will fall to form a repeated lifting and falling effect. S4. During the rotation of the small rotating blade (503), it will drive the two sets of reciprocating screws (502) to rotate synchronously. At the same time, the screw slider (501) set on the outside will slide laterally along the outside of the reciprocating screw (502). By adjusting, the movable scraper (500) at the bottom can be moved laterally, thereby using the bottom structure to scrape off the accumulated material on the surface of the horizontal platform (101). A certain gap is reserved between the movable scraper (500) and the guide channel (100). S5. During the lifting process of the lifting ramp (400), the movable plate (600) will be pushed to slide along the movable groove (504). At the same time, the sliding column (601) will be steadily lifted along the arc groove (505). After the lifting ramp (400) falls, the counterweight (604) will press down on the movable plate (600) under the action of gravity. The movable plate (600) will be reset and keep its bottom close to the surface of the lifting ramp (400). Under the guidance of the water flow, the fish that cross the dam enter the guide channel (100). When they flow upward, when they are located on the lifting ramp (400) with a large inclination, the lifting ramp (400) will be lifted under the action of the internal lifting component (002) to reduce the slope. The fish will quickly enter the next set of horizontal platforms (101). At the same time, the water flow in the area of ​​the horizontal platform (101) close to the combined arc plate (404) will be greatly reduced. The fish will stop and wait for the next lifting ramp (400) to be reset.

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