Fishway with traffic function and operation method thereof

Abstract

The invention relates to the technical field of water conservancy and hydropower ecological protection, in particular to a fishway with a traffic function and an operation method of the fishway. Each spliced fishway comprises a fixed fishway section and rotary fishway sections arranged at the upstream end and the downstream end of the fixed fishway section; connecting bridges are respectively arranged in the river channels on the upstream side and the downstream side of the dam body; a tempered glass plate is laid on the top of the rotary fishway section. When the rotary fishway section rotates to be in a butt joint state with the connecting bridge, the rotary fishway section and the connecting bridge are spliced together to form a bridge body. In a fish passing season, the rotary fishway sections are spliced at the two ends of the fixed fishway section to form a spliced fishway for executing a fish passing mode; and in a non-fish passing season or other time periods where fish passing is not needed, the rotating fishway section is rotated to be in a butt joint state with the connecting bridge, and the rotating fishway section and the connecting bridge are jointly spliced to form a bridge body for executing a traffic mode.

Description

Technical Field

[0001] This invention relates to the field of water conservancy and hydropower ecological protection technology, and in particular to a fishway with traffic function and its operation method. Background Technology

[0002] Fishways are the most widely used type of fish passage facility in water conservancy and hydropower projects. They consist of partitions and guides installed on the two side walls of a water channel, creating vertical slits that divide the channel into a series of chambers. As a major structure in water conservancy and hydropower projects, fishways primarily serve to mitigate the obstruction caused by dams and promote the exchange of fish species, functionally fulfilling the task of protecting the aquatic ecological environment of rivers and lakes.

[0003] In the prior art, for example, patent application CN118704415A discloses a fishway inlet system and its operation method adapted to complex environmental conditions, in which a fishway is set up on the bank on one side of the dam. Another example is patent CN222685437U, which discloses a vertical slotted fishway and dam, also with a fishway set up on the bank on one side of the dam.

[0004] In the aforementioned existing technologies, fishway facilities only provide an upstream passage for fish to migrate and cross dams, without further optimization from the perspective of developing other functions. River hydropower projects drive local economic development, leading to a surge in demand for transportation between riverbanks, thus highlighting the necessity of bridges. The application of fishways exhibits seasonal rhythms, significantly influenced by fish breeding and migration seasons, and is typically idle during the non-fishing season. How to improve the utilization rate of idle fishways during the non-fishing season and enhance transportation convenience between the two banks is an urgent problem to be solved. Summary of the Invention

[0005] The main objective of this invention is to propose a fishway with traffic function and its operation method, in order to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, on the one hand, the present invention proposes a fishway with traffic function, including a spliced ​​fishway set on the left and right banks of the dam; each spliced ​​fishway includes a fixed fishway section and a rotating fishway section set at the upstream and downstream ends of the fixed fishway section; both the fixed fishway section and the rotating fishway section are vertically slotted fishways; connecting bridges are respectively set in the river channel on the upstream and downstream sides of the dam; a tempered glass plate is laid on the top of the rotating fishway section; when the rotating fishway section rotates to the state of docking with the connecting bridge, the rotating fishway section and the connecting bridge are spliced ​​together to form a bridge body.

[0007] Preferably, railings are provided on both sides of the top of the rotating fishway section and the connecting bridge.

[0008] Preferably, bases are provided on the left and right banks of the dam, and the bases are located at the upstream and downstream ends of the fixed fishway section, respectively; a rotating support column is rotatably installed on the base; a support base is fixedly connected to the top of the rotating support column; a drive shaft is rotatably installed on the two vertical plates of the support base; a semi-circular fishway connecting plate is installed in the groove formed between the two vertical plates of the support base; and the drive shaft is inserted into the fishway connecting plate; the rotating fishway section is installed on the top surface of the fishway connecting plate; a first drive mechanism is provided on the base for driving the rotating support column to rotate around its own axis; a second drive mechanism is provided on one of the vertical plates of the support base for driving the drive shaft to rotate around its own axis.

[0009] Preferably, the first drive mechanism includes a first motor, a driven gear, and a driving gear; the first motor is mounted on the top surface of the base via a motor mount; the driving gear is mounted on the output shaft of the first motor; the driven gear is mounted on the rotating support; both the driving gear and the driven gear are located inside the base, and the driving gear meshes with the driven gear.

[0010] Preferably, the second drive mechanism includes a second motor, which is mounted on one of the vertical plates of the support base via a motor mount, and the output shaft of the second motor is connected to the drive shaft via a coupling.

[0011] Preferably, a reinforcing support plate is provided on the bottom surface of the rotating fishway section.

[0012] Preferably, a first U-shaped block is slidably inserted into the slot at both ends of the fixed fishway section; a first push plate is provided on the bottom surface of the first U-shaped block; a first electric cylinder is installed on the bottom surface at both ends of the fixed fishway section, a first push rod is provided on the first electric cylinder, and the first push rod is connected to the first push plate; when the rotating fishway section and the fixed fishway section are connected to each other, the first electric cylinder pushes the first U-shaped block to be inserted into the slot of the rotating fishway section.

[0013] Preferably, a second U-shaped block is slidably inserted at both ends of the connecting bridge; a second push plate is provided on the bottom surface of the second U-shaped block; a second electric cylinder is installed on the bottom surface at both ends of the connecting bridge, a second push rod is provided on the second electric cylinder, and the second push rod is connected to the second push plate; when the rotating fish passage section and the connecting bridge are connected to each other, the second electric cylinder pushes the second U-shaped block to be inserted into the slot of the rotating fish passage section.

[0014] Preferably, a first pier is set in the river channel on the upstream and downstream sides of the dam body, and the connecting bridge is installed on the first pier; multiple second piers are set on the left and right banks of the dam body, and the fixed fishway section is installed on the second piers.

[0015] On the other hand, the present invention also proposes a method for operating the above-mentioned fishway, the steps of which include: During the fish passage season, rotating fish passage segments are spliced ​​at both ends of fixed fish passage segments to form spliced ​​fish passages, which are used to execute fish passage patterns. When it is not the fishing season or other time period when fishing is not required, the rotating fishway segment is rotated to dock with the connecting bridge. The rotating fishway segment and the connecting bridge are spliced ​​together to form the bridge body for implementing traffic mode.

[0016] Due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows: (1) The present invention designs the traditional fishway into a fixed fishway section and a rotating fishway section. When the rotating fishway section is connected to the connecting bridge in the middle of the river, a bridge is formed to connect the left and right banks, providing a passage for people and vehicles on both banks.

[0017] (2) Expanding the functional benefits of fish passage facilities. During the fish passage season, the rotating fishway segment is spliced ​​to both ends of the fixed fishway segment to form a spliced ​​fishway for fish passage. During the non-fish passage season or other periods when fish passage is not required, the rotating fishway segment is rotated to connect with the connecting bridge to form a bridge for traffic flow. Therefore, this invention maximizes the ecological, economic, and social benefits of fish passage facilities by exploring their all-season functionality, thus expanding their functional benefits.

[0018] (3) Construct a safe and flexible transformation structure. The rotating fishway segment is driven by the first motor to move horizontally and by the second motor to change the tilt angle vertically, which further enhances the flexible transformation process of the rotating fishway segment. At the same time, second U-shaped blocks are set at both ends of the connecting bridge and first U-shaped blocks are set at both ends of the fixed fishway segment for insertion into the slots at the ends of the rotating fishway segment, which improves the stability of the rotating fishway segment after splicing with the fixed fishway segment and the connecting bridge. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1The overall structure of the fishway provided by the present invention Figure 1 At this point, the rotating fishway section is joined to the fixed fishway section; Figure 2 The planar layout of the fishway provided by the present invention Figure 1 At this point, the rotating fishway section is joined to the fixed fishway section; Figure 3 The overall structure of the fishway provided by the present invention Figure 2 At this point, the rotating fishway section is joined to the connecting bridge; Figure 4 The planar layout of the fishway provided by the present invention Figure 2 At this point, the rotating fishway section is joined to the connecting bridge; Figure 5 This is a side view of the rotating fishway section in the present invention; the railings are not shown in the figure. Figure 6 This is the three-dimensional structure of the rotating fishway segment in this invention. Figure 1 The railings are not shown in the picture; Figure 7 This is the three-dimensional structure of the rotating fishway segment in this invention. Figure 2 ; Figure 8 This is a front view of the support structure for the rotating fishway section in this invention; Figure 9 This is a three-dimensional structural diagram of the support structure for the rotating fishway section in this invention; Figure 10 This is a top view of the support structure of the rotating fishway section in this invention; Figure 11 This is a schematic diagram of the structure in which the first U-shaped block and the fixed fishway section cooperate in this invention; Figure 12 This is a schematic diagram of the driving structure of the first U-shaped block in this invention; Figure 13 This is a schematic diagram of the structure in which the second U-shaped block and the connecting bridge cooperate in this invention; Figure 14 This is a schematic diagram of the driving structure of the second U-shaped block in this invention.

[0021] Explanation of reference numerals in the attached diagrams: 1. Dam body; 2. Fixed fishway section; 201. First U-shaped block; 202. First push plate; 203. First electric cylinder; 204. First push rod; 205. Second support pier; 3. Rotating fishway section; 301. First base; 302. Driven gear; 303. Drive gear; 304. First motor; 305. Support base; 306. Second motor; 307. Fishway connecting plate; 308. Drive shaft; 309. Railing; 310. Reinforced support plate; 311. Tempered glass plate; 312. Fishway inlet; 313. Fishway outlet; 314. Rotating support column; 4. Connecting bridge; 401. Second electric cylinder; 402. Second push rod; 403. Second U-shaped block; 404. Second push plate; 405. First support pier; 100. Spliced ​​fishway; 200. Bridge body. Detailed Implementation

[0022] 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 a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0024] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0025] Traditional fish passage facilities only provide an upstream passage for fish to migrate and cross dams, without further optimization from the perspective of developing other functions. The application of fish passages is subject to seasonal rhythms and is greatly affected by the fish breeding and migration seasons. They are usually idle during the non-fish passage season (such as the fish passage facilities on the Dadu River, which are designed for the fish passage season from March to September each year). River hydropower projects drive local economic development, which greatly increases the demand for transportation between the two banks of the river, highlighting the necessity of bridge passage.

[0026] Based on the above analysis of the characteristics of fish passage facilities and the needs of economic development, combined with Figures 1 to 14 As shown, this embodiment provides a fishway with traffic function, including a spliced ​​fishway 100 set on the left and right banks of the dam body 1; each spliced ​​fishway 100 includes a fixed fishway section 2 and a rotating fishway section 3 set at the upstream and downstream ends of the fixed fishway section 2; connecting bridges 4 are respectively set in the river channel on the upstream and downstream sides of the dam body 1; a tempered glass plate 311 is laid on the top of the rotating fishway section 3; when the rotating fishway section 3 rotates to the docking state with the connecting bridge 4, the rotating fishway section 3 and the connecting bridge 4 are spliced ​​together to form a bridge body 200. The purpose of setting the tempered glass plate 311 is to allow pedestrians and small vehicles to pass through.

[0027] In this embodiment, both the fixed fishway section 2 and the rotating fishway section 3 are vertical slot fishways. A vertical slot fishway includes a fishway base plate, fishway sidewalls, fishway partitions, and other structures, with adjacent fishway partitions forming a fishway chamber. Vertical slot fishways are conventional existing technology and will not be described in detail here.

[0028] The downstream end of the spliced ​​fishway 100 forms a fishway inlet 312, and the upstream end forms a fishway outlet 313. Gates are arranged at the fishway inlet 312 and the fishway outlet 313 respectively to regulate the water flow at the inlet and outlet.

[0029] Combination Figure 3 As shown, railings 309 are installed on both sides of the top of the rotating fishway section 3 and the connecting bridge 4. The purpose of installing railings 309 is to improve the safety of the bridge body 200 and prevent pedestrians and small vehicles from falling off the bridge.

[0030] Combination Figure 1 , Figures 5 to 10 As shown, bases 301 are provided on the left and right banks of the dam body 1, and the bases 301 are located at the upstream and downstream ends of the fixed fishway section 2, respectively; a rotating support column 314 is rotatably installed on the base 301; a support base 305 is fixedly connected to the top of the rotating support column 314; a drive shaft 308 is rotatably installed on the two vertical plates of the support base 305; a semi-circular fishway connecting plate 307 is installed in the groove formed between the two vertical plates of the support base 305; and the drive shaft 308 is inserted into the fishway connecting plate 307, and a flat key is provided between the fishway connecting plate 307 and the drive shaft 308 to prevent relative rotation between the two. The rotating fishway section 3 is installed on the top surface of the fishway connecting plate 307; a first driving mechanism is provided on the base 301 for driving the rotating support column 314 to rotate around its own axis; a second driving mechanism is provided on one of the vertical plates of the support base 305 for driving the drive shaft 308 to rotate around its own axis.

[0031] Specifically, the first drive mechanism includes a first motor 304, a driven gear 302, and a driving gear 303; the first motor 304 is mounted on the top surface of the base 301 via a motor mount; the driving gear 303 is mounted on the output shaft of the first motor 304; the driven gear 302 is mounted on the rotating support column 314; both the driving gear 303 and the driven gear 302 are disposed inside the base 301, and the driving gear 303 meshes with the driven gear 302. The second drive mechanism includes a second motor 306, which is mounted on one of the vertical plates of the support base 305 via a motor mount, and the output shaft of the second motor 306 is connected to the drive shaft 308 via a coupling.

[0032] By employing the above structure, the first motor 304 drives the driving gear 303 to rotate synchronously, which in turn drives the driven gear 302 to rotate, thereby driving the rotating support column 314 to rotate around its own axis. The second motor 306 drives the drive shaft 308 to rotate, which in turn drives the fishway connecting plate 307 to move together. Therefore, the rotating fishway segment 3 is driven horizontally by the first motor 304, that is, it rotates around the axis of the rotating support column 314. The second motor 306 adjusts the tilt angle of the rotating fishway segment 3 in the vertical direction, further enhancing the flexibility of the rotating fishway segment.

[0033] Combination Figure 5 As shown, a reinforcing support plate 310 is provided on the bottom surface of the rotating fishway section 3 to increase the stability of the rotating fishway section 3.

[0034] Combination Figure 3 , Figure 11 and Figure 12 As shown, a first U-shaped block 201 is slidably inserted into the slots at both ends of the fixed fishway section 2; a first push plate 202 is provided on the bottom surface of the first U-shaped block 201; a first electric cylinder 203 is installed on the bottom surface at both ends of the fixed fishway section 2, and a first push rod 204 is provided on the first electric cylinder 203, and the first push rod 204 is connected to the first push plate 202; when the rotating fishway section 3 and the fixed fishway section 2 are connected to each other, the first electric cylinder 203 pushes the first U-shaped block 201 into the slot of the rotating fishway section 3. At this time, half of the first U-shaped block 201 is inserted into the rotating fishway section 3, and the other half is still located in the fixed fishway section 2, which improves the stability of the rotating fishway section 3 and the fixed fishway section 2 after splicing.

[0035] Combination Figure 13 and Figure 14As shown, second U-shaped blocks 403 are slidably inserted at both ends of the connecting bridge 4; a second push plate 404 is provided on the bottom surface of the second U-shaped blocks 403; a second electric cylinder 401 is installed on the bottom surface of both ends of the connecting bridge 4, and a second push rod 402 is provided on the second electric cylinder 401, and the second push rod 402 is connected to the second push plate 404; when the rotating fish passage section 3 and the connecting bridge 4 are connected to each other, the second electric cylinder 401 pushes the second U-shaped blocks 403 into the slot of the rotating fish passage section 3. At this time, half of the second U-shaped blocks 403 is inserted into the rotating fish passage section 3, and the other half is still located in the connecting bridge 4, which improves the stability of the rotating fish passage section 3 after being spliced ​​with the connecting bridge 4.

[0036] Combination Figure 1 and Figure 3 As shown, first piers 405 are set in the river channel on the upstream and downstream sides of the dam body 1, and the connecting bridge 4 is installed on the first piers 405; multiple second piers 205 are set on the left and right banks of the dam body 1, and the fixed fishway section 2 is installed on the second piers 205.

[0037] On the other hand, this embodiment also provides a method for operating the above-mentioned fishway, the steps of which include: S1. During the fish passage season, the rotating fish passage segment 3 is spliced ​​to both ends of the fixed fish passage segment 2 to form a spliced ​​fish passage 100, which is used to execute the fish passage mode.

[0038] S2. When it is not the fishing season or other time when fishing is not required, the rotating fishway section 3 is rotated to dock with the connecting bridge 4. The rotating fishway section 3 and the connecting bridge 4 are spliced ​​together to form the bridge body 200, which is used to implement the traffic mode.

[0039] The specific operation of step S2 is as follows: The first push rod 204 is controlled by the first electric cylinder 203 to retract the first U-shaped block 201, making room for the rotation of the fishway section 3 to rotate. Subsequently, the second motor 306 is started, and the waiting drive shaft 308 rotates, thereby causing the rotating fishway section 3 to change its tilt angle in the vertical direction until it is horizontal. Then, the first motor 304 is started, the driving gear 303 drives the driven gear 302 to rotate, which in turn drives the rotating support column 314 to rotate, so that the rotating fishway section 3 rotates around the axis of the rotating support column 314 until the rotating fishway section 3 docks with the connecting bridge 4. Finally, the second electric cylinder 401 is activated to drive the second U-shaped block 403 to extend and insert into the slot of the rotating fishway section 3. At this time, the connecting bridge 4 and the rotating fishway section 3 are connected to form a bridge body 200 spanning the river, which can be used by pedestrians or small vehicles.

[0040] When it is necessary to switch from traffic mode to fish passage mode, the conversion process is completed by the reverse operation described above. The rotating fish passage section 3 is connected with the fixed fish passage section 2 to form a spliced ​​fish passage 100, and the connecting bridge 4 in the center of the river is put back into standby mode.

[0041] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A fishway with traffic function, characterized in that, Including the spliced ​​fishway (100) set on the left and right banks of the dam body (1); Each spliced ​​fishway (100) includes a fixed fishway section (2) and a rotating fishway section (3) disposed at the upstream and downstream ends of the fixed fishway section (2). Both the fixed fishway section (2) and the rotating fishway section (3) are vertical slit fishways; Connecting bridges (4) are respectively set in the river channel on the upstream and downstream sides of the dam body (1); A tempered glass plate (311) is laid on top of the rotating fishway section (3); When the rotating fishway segment (3) rotates to the docking state with the connecting bridge (4), the rotating fishway segment (3) and the connecting bridge (4) are spliced ​​together to form a bridge body (200).

2. The fishway as described in claim 1, characterized in that, Railings (309) are provided on both sides of the top of the rotating fishway section (3) and the connecting bridge (4).

3. The fishway as described in claim 1, characterized in that, A base (301) is provided on the left and right banks of the dam body (1), and the base (301) is located at the upstream and downstream ends of the fixed fishway section (2); A rotating support column (314) is rotatably mounted on the base (301); a support base (305) is fixedly connected to the top of the rotating support column (314). A drive shaft (308) is rotatably mounted on the two vertical plates of the support base (305); a semi-circular fishway connecting plate (307) is installed in the groove formed between the two vertical plates of the support base (305); and the drive shaft (308) is inserted into the fishway connecting plate (307); the rotating fishway section (3) is installed on the top surface of the fishway connecting plate (307); A first driving mechanism is provided on the base (301) for driving the rotating support column (314) to rotate around its own axis; A second drive mechanism is provided on one of the vertical plates of the support base (305) for driving the drive shaft (308) to rotate around its own axis.

4. The fishway as described in claim 3, characterized in that, The first drive mechanism includes a first motor (304), a driven gear (302), and a driving gear (303). The first motor (304) is mounted on the top surface of the base (301) via a motor mount; The drive gear (303) is mounted on the output shaft of the first motor (304); The driven gear (302) is mounted on the rotating support (314); The driving gear (303) and driven gear (302) are both disposed inside the base (301), and the driving gear (303) meshes with the driven gear (302).

5. The fishway as described in claim 3, characterized in that, The second drive mechanism includes a second motor (306), which is mounted on one of the vertical plates of the support base (305) via a motor mount, and the output shaft of the second motor (306) is connected to the drive shaft (308) via a coupling.

6. The fishway as described in claim 3, characterized in that, A reinforcing support plate (310) is provided on the bottom surface of the rotating fishway section (3).

7. The fishway as described in claim 1, characterized in that, A first U-shaped block (201) is slidably inserted into the slots at both ends of the fixed fishway section (2); a first push plate (202) is provided on the bottom surface of the first U-shaped block (201); A first electric cylinder (203) is installed on the bottom surface at both ends of the fixed fishway section (2). A first push rod (204) is provided on the first electric cylinder (203), and the first push rod (204) is connected to the first push plate (202). When the rotating fishway section (3) and the fixed fishway section (2) are connected to each other, the first electric cylinder (203) pushes the first U-shaped block (201) to insert into the slot of the rotating fishway section (3).

8. The fishway as described in claim 1, characterized in that, A second U-shaped block (403) is slidably inserted at both ends of the connecting bridge (4); a second push plate (404) is provided on the bottom surface of the second U-shaped block (403). A second electric cylinder (401) is installed on the bottom surface at both ends of the connecting bridge (4). A second push rod (402) is provided on the second electric cylinder (401), and the second push rod (402) is connected to the second push plate (404). When the rotating fishway section (3) and the connecting bridge (4) are connected to each other, the second electric cylinder (401) pushes the second U-shaped block (403) to insert into the slot of the rotating fishway section (3).

9. The fishway as described in claim 1, characterized in that, The first pier (405) is set in the river channel on the upstream and downstream sides of the dam body (1), and the connecting bridge (4) is installed on the first pier (405); Multiple second piers (205) are set on the left and right banks of the dam body (1), and the fixed fishway section (2) is installed on the second piers (205).

10. A method for operating a fishway as described in any one of claims 1 to 9, characterized in that the steps include... include: During the fish passage season, the rotating fish passage segment (3) is spliced ​​to both ends of the fixed fish passage segment (2) to form a spliced ​​fish passage (100) for performing the fish passage mode; When it is not the fishing season or other time when fishing is not required, the rotating fish passage section (3) is rotated to dock with the connecting bridge (4). The rotating fish passage section (3) and the connecting bridge (4) are spliced ​​together to form a bridge body (200) for implementing traffic mode.

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