A fish escape prevention device for the drainage gate of a water conveyance canal

Abstract

This invention provides a fish escape prevention device for a drainage gate in a water conveyance canal, belonging to the technical field of escape prevention devices. The connecting seat and spring rod together form a reset structure. A side plate is fixedly connected to the top surface of the base plate, and a pressure plate is installed on the inner side of the side plate. The pressure plate is connected to the connecting seat. This invention solves the problem that escape prevention devices generally use mesh components to block the space after the gate is opened to prevent fish from escaping. However, relying solely on the obstruction of the mesh component is insufficient to promote fish re-swimming, presenting limitations. When the electromagnetic ring is de-energized, the pressure plate, magnetically attracted in the side plate, loses the magnetic attraction of the electromagnetic ring. Under the reset action of the spring rod installed in the connecting seat, the pressure plate quickly rebounds. When the pressure plate rebounds, it simultaneously and automatically displaces any fish located on the pressure plate, thus ensuring that the fish can quickly return to the source.

Description

Technical Field

[0001] This invention relates to the field of escape prevention devices, and in particular to a fish escape prevention device for a drainage gate in a water conveyance canal. Background Technology

[0002] The water conveyance canal is a crucial water conveyance channel in the South-to-North Water Diversion Project. When it is in use, it generally needs to be protected by corresponding sluice gates. Since fish often accumulate near the sluice gates, corresponding escape prevention devices are needed to intercept and protect the fish. For example, application number "CN202210226083.0" proposes a fish escape prevention device applicable to the drainage gate of the South-to-North Water Diversion Project's central route, belonging to the technical field of fish escape prevention devices. It includes the assembly of a fish passage device, the assembly of a fish blocking device, the method of using the fish escape prevention device, and device maintenance. The fish passage device consists of a steel frame and a support frame as its main structure, with a steel ring fixedly welded to the steel frame to form a fish passage hole. The lower end of the fish passage device is equipped with a support column and a steel ball. The fish blocking device consists of an electric grid, connecting wires, and a high-frequency pulse voltage generator. The main structure composed of the steel frame and support column ensures the stability of the fish passage device. The design of the fish passage hole allows fish staying near the drainage gate to freely enter the main canal. The support column and steel ball at the lower end of the fish passage device and the fish blocking device allow the device to unload some of the water flow impact force, increasing the stability of the device. The electric grid and high-frequency pulse voltage generator can keep fish away from the fish blocking device and the fish passage device. Device maintenance increases the service life of the device. When using escape prevention devices, mesh components are generally used to block the space after the gate is opened in order to prevent fish from escaping. However, relying solely on the obstruction of mesh components is not enough to encourage fish to return to their original swimming position, which has limitations.

[0003] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a fish escape prevention device for the drainage gate of the water conveyance canal, in order to achieve a more practical purpose. Summary of the Invention

[0004] This invention provides a fish escape prevention device for a drainage gate in a water conveyance canal. It solves the problem that when using escape prevention devices, a mesh component is generally used to block the space after the gate is opened in order to prevent fish from escaping. However, relying solely on the obstruction of the mesh component is not enough to encourage fish to return to their original swimming position, which has limitations.

[0005] This invention provides a fish escape prevention device for a drainage gate in a water conveyance canal, which includes: a base plate, the main body of which is rectangular, and a connecting seat is installed on the top surface of the base plate. There are four connecting seats in total, with each pair of longitudinally adjacent connecting seats forming a group. A spring rod is installed on the inner side of each group of connecting seats. The connecting seats and the spring rod together form a reset structure. A side plate is fixedly connected to the top surface of the base plate, and a pressure plate is installed on the inner side of the side plate. The pressure plate is connected to the connecting seat.

[0006] Furthermore, the base plate has two locations, and the two base plates are fixedly connected to the front and rear sides of the base respectively. The bottom of the base has a groove. When the fish moves to the outside of the protective net, it will simultaneously sit on the pressure plate set in the side plate. At this time, the electromagnetic ring fixedly connected to the top of the base plate will be de-energized. After the electromagnetic ring is de-energized, the pressure plate set in the side plate will lose the magnetic attraction of the electromagnetic ring. Under the reset action of the spring rod installed in the connecting seat, the pressure plate will quickly rebound. When the pressure plate rebounds, the fish on the pressure plate can be automatically thrown away, thereby ensuring that the fish can quickly return to the source.

[0007] Furthermore, a motor A is installed on the left side of the base, a guide wheel is installed on the right output shaft of the motor A, and a protective net is installed on the outside of the guide wheel. The motor A, the guide wheel, and the protective net together form an escape prevention structure.

[0008] Furthermore, the connecting seat and the spring rod together form a reset structure for the pressure plate. An electromagnetic ring is fixedly connected to the top surface of the base plate. The electromagnetic ring generates magnetism when energized and attracts the pressure plate.

[0009] Furthermore, a motor B is installed on the outer side of the baffle. The motor B is connected to a roller, and a traction rope is wound around the outer side of the roller. The motor B and the roller together form a winding structure for the traction rope.

[0010] Furthermore, a bracket is fixedly connected to the outer side of the base, and a baffle is fixedly connected to the top of the transverse component in the bracket. There are four baffles in total, with each pair of transversely adjacent baffles forming a group, and rollers are installed on the inner side of each group of baffles.

[0011] Furthermore, the bottom end of the traction rope is fixedly connected to a hook. There are two hooks in total, and the two hooks are fixedly connected to the top surface of the gate in a straight line array. Slider blocks are fixedly connected to both the left and right sides of the gate, and the gate is slidably connected to the base through the sliders.

[0012] Furthermore, a guide rail is fixedly connected to the outer side of the base. The guide rail has a longitudinal groove inside. Each pair of horizontally adjacent guide rails forms a group. An electric push rod is installed inside the longitudinal groove of the guide rail. A movable seat is also installed inside the longitudinal groove. The movable seat is connected to the electric push rod. Each pair of horizontally adjacent movable seats forms a group. A bracket is fixedly connected to the inner side of each group of movable seats. The movable seat and the bracket together form a movable structure. A scraper is fixedly connected to the side of the bracket closest to the gate. The scraper has an inclined surface structure. The bracket and the scraper together form a cleaning structure.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. When it is necessary to obstruct the water flow in the main water conveyance channel under normal conditions, the base can be closed by using a gate and slider that are slidably connected to it. This allows for efficient obstruction of the water flow in the current water conveyance channel. When the gate needs to be opened, the motor B installed on the outside of the two baffles can be started simultaneously to drive the rollers to rotate. The rollers then wind up the traction rope, and the traction rope connects to the hook fixed to the top of the gate to lift and open the gate. When the gate moves upward, the slider fixed to the outside of the gate moves upward along the longitudinal groove in the base to achieve a fast and smooth opening of the gate, thus achieving a more practical purpose.

[0014] 2. When the gate moves upward under the tension of the traction rope, the motor A installed on the outside of the base can be started simultaneously to drive the guide wheel to rotate. The guide wheel releases and unfolds the protective net to open up the space after the gate is opened. This allows the water in the channel to flow quickly through the protective net set between the gate and the base. The protective net also effectively prevents fish in the channel from being discharged into other waterways through the gate, which could easily cause damage to the surrounding ecological environment.

[0015] 3. When cleaning the gate surface during use, the rollers can be driven by starting motor B. Simultaneously, as the rollers retract the traction rope, the electric push rod installed in the guide rail can be activated to push the moving seat. The moving seat, using a bracket fixed to its inner side and a scraper, moves back and forth along the gate. The scraper's movement quickly cleans the gate surface, preventing rust caused by debris on the gate's outer surface. This ensures cleanliness under normal conditions. When fish move to the outside of the protective net, they will simultaneously land on the pressure plate set in the side plate. At this time, the electromagnetic ring fixed to the top of the bottom plate will be de-energized. After the electromagnetic ring is de-energized, the pressure plate set in the side plate will lose the magnetic attraction of the electromagnetic ring. Under the reset action of the spring rod installed in the connecting seat, the pressure plate will quickly rebound. When the pressure plate rebounds, the fish on the pressure plate can be automatically thrown away, thereby ensuring that the fish can quickly return to the source. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0017] In the attached diagram: Figure 1 This diagram shows a front view of the escape prevention device in a partially disassembled state according to an embodiment of the present invention. Figure 2 This diagram shows a top-side view of the escape prevention device according to an embodiment of the present invention in a partially disassembled state; Figure 3 A front view of the escape prevention device according to an embodiment of the present invention is shown. Figure 4 A schematic diagram of the structure from the base plate to the electromagnetic ring of the escape prevention device according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of the guide rail to scraper structure of the escape prevention device according to an embodiment of the present invention is shown; Figure 6 A schematic diagram showing the structure of the base to the slider of the escape prevention device according to an embodiment of the present invention is shown; Figure 7 An escape prevention device according to an embodiment of the present invention is shown. Figure 2 Enlarged structural diagram at point A in the middle; Figure 8 An escape prevention device according to an embodiment of the present invention is shown. Figure 2 Enlarged structural diagram at point B.

[0018] List of reference numerals 1. Base; 2. Base plate; 3. Connecting seat; 4. Spring rod; 5. Side plate; 6. Pressure plate; 7. Electromagnetic ring; 8. Motor A; 9. Guide wheel; 10. Protective net; 11. Support frame; 12. Baffle; 13. Motor B; 14. Roller; 15. Traction rope; 16. Hook; 17. Gate; 18. Slider; 19. Guide rail; 20. Electric push rod; 21. Moving seat; 22. Bracket; 23. Scraper. Detailed Implementation

[0019] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0020] Example: As attached Figure 1 To be continued Figure 8 As shown: This invention provides a fish escape prevention device for a drainage gate in a water conveyance canal, comprising: a base plate 2, the main body of which is rectangular, and a connecting seat 3 installed on the top surface of the base plate 2. There are four connecting seats 3, with each pair of longitudinally adjacent connecting seats 3 forming a group. A spring rod 4 is installed on the inner side of each group of connecting seats 3. The connecting seats 3 and the spring rod 4 together form a reset structure. A side plate 5 is fixedly connected to the top surface of the base plate 2, and a pressure plate 6 is installed on the inner side of the side plate 5. The pressure plate 6 is connected to the connecting seat 3. A guide rail 19 is fixedly connected to the outer side of the base 1, and the guide rail 19 has a longitudinal opening inside. The guide rails 19 are arranged in a longitudinal groove, with each pair of horizontally adjacent guide rails 19 forming a group. An electric push rod 20 is installed inside the longitudinal groove, and a movable seat 21 is also installed inside the longitudinal groove. The movable seat 21 is connected to the electric push rod 20. Each pair of horizontally adjacent movable seats 21 forms a group, and a bracket 22 is fixedly connected to the inner side of each group of movable seats 21. The movable seat 21 and the bracket 22 together form a moving structure. A scraper 23 is fixedly connected to the side of the bracket 22 closest to the gate 17. The scraper 23 has an inclined surface structure, and the bracket 22 and the scraper 23 together form a cleaning structure.

[0021] The connecting seat 3 and the spring rod 4 together form the reset structure for the pressure plate 6. An electromagnetic ring 7 is fixedly connected to the top surface of the base plate 2. The electromagnetic ring 7 generates magnetism when energized and attracts the pressure plate 6. There are two base plates 2, which are fixedly connected to the front and rear sides of the base 1, respectively. The bottom of the base 1 has a groove. When it is necessary to obstruct the water flow in the water conveyance channel under normal conditions, the base 1 can be closed by using the gate 17 and the slider 18 slidably connected in the base 1, so as to simultaneously and efficiently obstruct the water flow in the current water conveyance channel. When in use, if it is necessary to open the gate 17, the motor B13 installed on the outside of the two baffles 12 can be started simultaneously to drive the roller 14 to rotate. The roller 14 will then wind up the traction rope 15, and the traction rope 15 will connect to the hook 16 fixedly connected to the top of the gate 17 to lift and open the gate 17. When the gate 17 moves upward, the slider 18 fixedly connected to the outside of the gate 17 can be used to move upward along the longitudinal groove opened in the base 1 to achieve a fast and smooth opening of the gate 17, thereby achieving a more practical purpose.

[0022] The base 1 has a motor A8 mounted on its left side, a guide wheel 9 mounted on the output shaft of the motor A8 on its right side, and a protective net 10 mounted on the outside of the guide wheel 9. The motor A8, guide wheel 9, and protective net 10 together form an escape prevention structure. A support frame 11 is fixedly connected to the outside of the base 1. A baffle 12 is fixedly connected to the top of the transverse component of the support frame 11. There are four baffles 12, with each pair of transversely adjacent baffles 12 forming a group. Each group of baffles 12 has rollers 14 mounted on its inner side. When the gate 17 moves upward under the tension of the traction rope 15, it can... The motor A8, installed on the outside of the base 1, drives the guide wheel 9 to rotate. The guide wheel 9 releases and unfolds the protective net 10, opening up the space after the gate 17 is opened. This allows the water in the channel to flow quickly through the protective net 10 set between the gate 17 and the base 1. The protective net 10 also effectively prevents fish in the channel from being discharged into other waterways through the gate 17, which could easily cause damage to the surrounding ecological environment.

[0023] A motor B13 is installed on the outer side of the baffle 12. The motor B13 is connected to the roller 14, and a traction rope 15 is wound around the outer side of the roller 14. The motor B13 and the roller 14 together form a winding structure for the traction rope 15. A hook 16 is fixedly connected to the bottom end of the traction rope 15. There are two hooks 16, and the two hooks 16 are fixedly connected to the top surface of the gate 17 in a straight array. Slider blocks 18 are fixedly connected to both sides of the gate 17. The gate 17 is slidably connected to the base 1 through the sliders 18. When it is necessary to clean the surface of the gate 17 during use, the roller 14 can be driven to rotate by starting the motor B13. While the roller 14 is winding the traction rope 15, the electric push rod 20 installed in the guide rail 19 can be activated simultaneously to push the moving seat 21. The moving seat 21 is then supported by a support fixedly connected to its inner side. The frame 22 and scraper 23 move back and forth along the gate 17. The movement of the scraper 23 can quickly clean the surface of the gate 17, thereby preventing rust caused by debris on the outer surface of the gate 17. Under normal conditions, when fish move to the outside of the protective net 10, they will simultaneously be placed on the pressure plate 6 set in the side plate 5. At this time, the electromagnetic ring 7 fixed to the top of the bottom plate 2 will be de-energized. After the electromagnetic ring 7 is de-energized, the pressure plate 6, which is magnetically attached to the side plate 5, will lose the magnetic attraction of the electromagnetic ring 7. Under the reset action of the spring rod 4 installed in the connecting seat 3, the pressure plate 6 will quickly rebound. When the pressure plate 6 rebounds, the fish on the pressure plate 6 can be automatically thrown away, thereby ensuring that the fish can quickly return.

[0024] When in use: When a drainage gate needs to be installed in a water conveyance canal, the base 1 can be installed into the water conveyance canal, and the two base plates 2 fixedly connected to the outside of the base 1 can be attached to the bottom surface of the canal at the same time. When it is necessary to obstruct the water flow in the main water conveyance channel under normal conditions, the base 1 can be closed by using the gate 17 and slider 18 slidably connected in the base 1, so as to efficiently obstruct the water flow in the current water conveyance channel. When it is in use, if it is necessary to open the gate 17, the motor B13 installed on the outside of the two baffles 12 can be started simultaneously to drive the roller 14 to rotate. The roller 14 winds up the traction rope 15, and the traction rope 15 connects to the hook 16 fixedly connected to the top of the gate 17 to lift and open the gate 17. When the gate 17 moves upward, the slider 18 fixedly connected to the outside of the gate 17 can move upward along the longitudinal groove opened in the base 1 to achieve the quick and smooth opening of the gate 17, thus achieving a more practical purpose. Furthermore, when the gate 17 moves upward under the tension of the traction rope 15, the motor A8 installed on the outside of the base 1 can be started simultaneously to drive the guide wheel 9 to rotate. The guide wheel 9 releases and unfolds the protective net 10 to open up the space after the gate 17 is opened. This allows the water in the channel to flow quickly through the protective net 10 set between the gate 17 and the base 1. The protective net 10 also effectively prevents fish in the channel from being discharged into other water channels through the gate 17, which could easily cause damage to the surrounding ecological environment. Furthermore, when cleaning the surface of the gate 17 is required during use, the roller 14 can be rotated by starting the motor B13, and the traction rope 15 can be wound up by the roller 14. At the same time, the electric push rod 20 installed in the guide rail 19 can be activated to push the moving seat 21. The moving seat 21, through the bracket 22 fixedly connected to its inner side and the scraper 23, can move up and down along the gate 17. The movement of the scraper 23 can quickly clean the surface of the gate 17, thereby preventing the problem of rust caused by debris on the outer surface of the gate 17. When fish move to the outside of the protective net 10, they will simultaneously be positioned on the pressure plate 6 set in the side plate 5. At this time, the electromagnetic ring 7 fixed to the top of the bottom plate 2 will be de-energized. After the electromagnetic ring 7 is de-energized, the pressure plate 6, which is magnetically attached to the side plate 5, will lose the magnetic attraction of the electromagnetic ring 7. Under the reset action of the spring rod 4 installed in the connecting seat 3, the pressure plate 6 will quickly rebound. When the pressure plate 6 rebounds, the fish on the pressure plate 6 can be automatically thrown away, thereby ensuring that the fish can quickly return to the source.

Claims

1. A fish escape prevention device for a drainage gate in a water conveyance canal, characterized in that, include: The base plate (2) has a rectangular structure, and a connecting seat (3) is installed on the top surface of the base plate (2). There are four connecting seats (3), and each pair of longitudinally adjacent connecting seats (3) forms a group. A spring rod (4) is installed on the inner side of each group of connecting seats (3). The connecting seats (3) and the spring rod (4) together form a reset structure. A side plate (5) is fixedly connected to the top surface of the base plate (2). A pressure plate (6) is installed on the inner side of the side plate (5). The pressure plate (6) is connected to the connecting seat (3). The connecting seat (3) and the spring rod (4) together form a reset structure for the pressure plate (6). The base plate (2) has an electromagnetic ring (7) fixedly connected to its top surface. The electromagnetic ring (7) generates magnetism by being energized and attracts the pressure plate (6). The base plate (2) has two locations, and the two base plates (2) are fixedly connected to the front and rear sides of the base (1). The bottom of the base (1) has a groove. The left side of the base (1) is equipped with a motor A (8). The right output shaft of the motor A (8) is equipped with a guide wheel (9). The outer side of the guide wheel (9) is equipped with a protective net (10). The motor A (8), the guide wheel (9), and the protective net (10) together form an escape prevention structure. The base (1) is fixedly connected to a guide rail (19) on the outside. The guide rail (19) has a longitudinal groove inside. Each pair of horizontally adjacent guide rails (19) forms a group. An electric push rod (20) is installed inside the longitudinal groove in the guide rail (19). A movable seat (21) is also installed inside the longitudinal groove. The movable seat (21) is connected to the electric push rod (20). Each pair of horizontally adjacent movable seats (21) forms a group. A bracket (22) is fixedly connected to the inside of each group of movable seats (21). The movable seat (21) and the bracket (22) together form a movable structure. A scraper (23) is fixedly connected to the side of the bracket (22) near the gate (17). The scraper (23) has an inclined surface structure. The bracket (22) and the scraper (23) together form a cleaning structure.

2. The fish escape prevention device for the drainage gate of a water conveyance canal as described in claim 1, characterized in that: The base (1) is fixedly connected to a support frame (11) on the outside. A baffle (12) is fixedly connected to the top of the transverse member in the support frame (11). There are four baffles (12), and each pair of transversely adjacent baffles (12) forms a group. Rollers (14) are installed on the inner side of each group of baffles (12).

3. The fish escape prevention device for the drainage gate of a water conveyance canal as described in claim 2, characterized in that: A motor B (13) is installed on the outside of the baffle (12). The motor B (13) is connected to the roller (14). A traction rope (15) is wound around the outside of the roller (14). The motor B (13) and the roller (14) together form a winding structure for the traction rope (15).

4. The fish escape prevention device for the drainage gate of a water conveyance canal as described in claim 3, characterized in that: The bottom end of the traction rope (15) is fixedly connected to a hook (16). There are two hooks (16), and the two hooks (16) are fixedly connected to the top surface of the gate (17) in a straight line array. The left and right sides of the gate (17) are fixedly connected to sliders (18), and the gate (17) is slidably connected to the base (1) through the sliders (18).

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