Flood prevention water retaining gate structure

Abstract

The invention discloses a flood control water retaining gate structure, and belongs to the technical field of hydraulic engineering, the flood control water retaining gate structure comprises a door frame and a door body, the door body is slidably mounted in the door frame, a driving mechanism is arranged at the top of the door frame, two square grooves are formed in the front side of the door body, sealing plates are slidably mounted in the square grooves, a sliding plate is slidably mounted on the front side of the door body, and the sliding plate is slidably mounted in the door frame. A floating plate is fixedly mounted on the front side of the sliding plate, a cavity and a vertical runner are formed in the door body, and transverse runners are formed in the two ends of the vertical runner. Lifting control of the gate is achieved through the driving mechanism, flood impact force and water level fluctuation energy can be converted into electric energy, the resistance value connected to the excitation circuit is changed along with rising of the water level and upward movement of the first lifting frame, the generator stator magnetic field is automatically enhanced, the power generation efficiency of the unit rotation angle is improved, and rotation damping is increased; therefore, when the flood level rises, the water flow kinetic energy is more effectively utilized for power generation, and intelligent capture and recovery of energy are achieved.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, and in particular to flood control and water-retaining gate structures. Background Technology

[0002] Flood control gates are crucial facilities in water conservancy projects used to regulate water levels and defend against floods. Traditional gate structures primarily focus on basic water-blocking and opening / closing functions, with their drive mechanisms typically relying on external electric or hydraulic systems for power, resulting in relatively simple structures. During operation, the enormous impact energy of water flow and the energy from frequent water level fluctuations are often absorbed or dissipated by the gate structure itself, failing to be effectively utilized. Existing gates generally lack designs for actively capturing and converting the kinetic energy of water flow.

[0003] The patent document with publication number CN201952779U discloses a flood control gate structure. The gate includes a side channel column, a middle column, a bottom channel, a pressure strip, and a grid plate. The side channel column has a groove recessed on one side, while the middle column has a groove recessed on each side. Sealing strips are provided in the grooves of the side channel column, the middle column, and the bottom channel. The side channel columns are installed on the wall columns on opposite sides in front of the building entrance.

[0004] The main drawbacks of existing technologies lie in their low energy utilization efficiency and insufficient adaptability. On the one hand, the enormous kinetic energy contained in floodwaters only acts on the gate to generate hydrostatic pressure or impact loads, without being converted into valuable energy forms, resulting in a waste of energy resources. On the other hand, facing dynamic changes in water levels, especially rapid rises in flood levels and wave fluctuations, traditional gates lack effective response mechanisms to improve energy recovery efficiency. Furthermore, existing gate structures struggle to automatically adjust power generation parameters according to water level changes to maximize energy capture, limiting their potential in energy conservation, emission reduction, and self-sufficiency. Therefore, we propose a flood control and water-retaining gate structure to address this problem. Summary of the Invention

[0005] The purpose of this invention is to provide a flood control gate structure to solve the problems mentioned in the background art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The flood control gate structure includes: a gate frame and a gate body. The gate body is slidably installed inside the gate frame. A drive mechanism is provided on the top of the gate frame. Two square slots are opened on the front side of the gate body. Sealing plates are slidably installed in the square slots. A sliding plate is slidably installed on the front side of the gate body. A floating plate is fixedly installed on the front side of the sliding plate. The interior of the gate body has a cavity and a vertical flow channel. Horizontal flow channels are opened at both ends of the vertical flow channel. The other end of the horizontal flow channel is connected to the corresponding square slot. An energy recovery mechanism is provided inside the cavity.

[0008] The energy recovery mechanism includes: a main shaft, two first lifting frames, a second lifting frame, two connecting shafts, and two generators. Multiple second permanent magnets are fixedly installed on the front side of the first lifting frame, multiple first permanent magnets are fixedly installed on the rear side of the slide plate, multiple third permanent magnets are fixedly installed on the rear side of the second lifting frame, and a vertical plate is slidably installed in the vertical flow channel. Multiple fourth permanent magnets are fixedly installed on the front side of the vertical plate.

[0009] Preferably, a first rack is fixedly installed on the rear side of the first lifting frame, one end of the connecting shaft is fixedly connected to the input shaft of the generator, and a connecting cylinder is fixedly installed on the other end of the connecting shaft. A first one-way bearing is provided inside the connecting cylinder, and two first one-way bearings are respectively sleeved on both ends of the main shaft. A second one-way bearing is sleeved on the outer side of the connecting shaft, and an installation ring is sleeved on the outer side of the second one-way bearing. A first gear is fixedly sleeved on the outer side of the installation ring, and the first gear meshes with the first rack.

[0010] Preferably, the first permanent magnet is magnetically attracted to the corresponding second permanent magnet, the third permanent magnet is magnetically attracted to the corresponding fourth permanent magnet, a second gear is fixedly sleeved on the outer side of the main shaft, and a second rack is fixedly installed on the front side of the second lifting frame, with the second gear and the second rack meshing with each other.

[0011] Preferably, conductive plates are fixedly installed on the sides of the two first lifting frames that are close to each other, and the same guide frame is fixedly installed on the other end of the two conductive plates. Side plates are fixedly installed on both sides of the second lifting frame. Guide columns and guide plates are fixedly installed in the cavity. The side plates are slidably sleeved on the outside of the guide columns, and the guide frames are slidably sleeved on the outside of the guide plates. A guide rail is fixedly installed on the front side of the door, and the sliding plate is slidably sleeved on the outside of the guide rail.

[0012] Preferably, two resistance bars are fixedly installed inside the cavity, and the conductive plate is slidably sleeved on the outside of the corresponding resistance bar. The generator is equipped with a rotor and a stator. An excitation circuit is connected to the outside of the stator. The top of the resistance bar and the conductive plate are connected in series to the excitation circuit.

[0013] Preferably, the drive mechanism includes: a fixed frame, a dual-axis motor, and two winding wheels. A winding rope is fixedly installed on the outer side of the winding wheels, and the bottom end of the winding rope is fixedly connected to the door body. An installation shaft is fixedly installed inside the winding wheels. The installation shaft is rotatably installed in the fixed frame. A driven bevel gear is fixedly installed at the front end of the installation shaft. The dual-axis motor is fixedly installed on the front side of the fixed frame. A drive shaft is fixedly installed on each of the two output shafts of the dual-axis motor. An active bevel gear is fixedly installed on the drive shaft. The active bevel gear meshes with the corresponding driven bevel gear.

[0014] The fixing frame is fixedly installed on the top of the gantry, and two positioning plates are fixedly installed on the front side of the fixing frame. The drive shaft is rotatably installed in the corresponding positioning plate.

[0015] Preferably, a protective box and an equipment box are fixedly installed on the top of the door body. A top cover is fixedly installed on the top of the protective box. A front cover is fixedly installed on the front side of the equipment box by bolts. A limit plate is fixedly installed on the side wall of the square groove. A through hole is opened on the rear side of the cavity, and a sealing cover is fixedly installed in the through hole.

[0016] Preferably, limit strips are fixedly installed on both inner walls of the gantry, the door body is slidably sleeved on the outside of the limit strips, the equipment box is equipped with a controller and a battery, and the bottom of the equipment box is provided with multiple heat dissipation holes.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. In this invention, the flood control gate structure is driven by starting a dual-shaft motor to rotate two drive shafts, and by meshing the active bevel gear and the driven bevel gear to rotate two mounting shafts and two winding wheels. The two winding wheels drive the gate body to rise by winding the winding rope, thereby realizing the opening control.

[0019] 2. In this invention, the flood control gate structure, under the impact of water flow, will experience different pressures on the two square plates due to pressure deviations at different positions. This causes the vertical plate to move up and down through the gas flow effect between the square groove, the transverse flow channel, and the vertical flow channel. The vertical plate moves up and down through the magnetic attraction between the fourth permanent magnet and the third permanent magnet. The second lifting frame moves up and down through the second lifting frame. The second rack moves up and down through the meshing with the second gear. The second rack drives the main shaft to rotate reciprocally. When the main shaft rotates forward, the first one-way bearing on the left side drives the connecting shaft on the left side to rotate forward, generating electricity through the generator on the left side. At this time, the first one-way bearing on the right side rotates idling. When the main shaft rotates in reverse, the first one-way bearing on the left side rotates idling, and the main shaft drives the connecting shaft on the right side to rotate in reverse through the first one-way bearing on the right side, generating electricity through the generator on the right side.

[0020] 3. In this invention, the flood control gate structure can drive the floating plate to move up and down when the water surface fluctuates, thereby driving the sliding plate to move up and down synchronously. The sliding plate drives the first lifting frame to move up and down through the magnetic attraction between the first permanent magnet and the second permanent magnet, thereby driving the first rack to move up and down synchronously. The first rack drives the rotating ring to rotate back and forth through meshing with the first gear. When the two rotating rings rotate forward, the left rotating ring and the second one-way bearing drive the left connecting shaft to rotate forward, generating electricity through the generator on the left. At this time, the right second one-way bearing rotates idling. When the main shaft rotates in reverse, the left second one-way bearing rotates idling, and the right rotating ring drives the right connecting shaft to rotate in reverse through the right second one-way bearing, generating electricity through the generator on the right.

[0021] 4. In this invention, the flood control gate structure causes the first lifting frame and the conductive plate to move upward as the water level rises, thereby reducing the resistance of the resistor bar connected to the excitation circuit. The magnetic force generated by the stator of the generator driven by the excitation circuit increases, thereby increasing the power generation per unit rotation angle of the connecting shaft and increasing the rotation damping of the connecting shaft. Thus, when floods cause the water level to rise, more power generation can be generated by utilizing the impact force of the flood.

[0022] 5. In this invention, the flood control gate structure achieves gate lifting and lowering control through a drive mechanism, and can convert flood impact force and water level fluctuation energy into electrical energy. When the water flow impact causes uneven pressure on both sides of the gate, it drives the vertical plate and the second lifting frame magnetically attached to it to move up and down. Then, through rack and pinion transmission, it drives the main shaft to rotate back and forth. The main shaft drives the generators on both sides to generate electricity alternately through a one-way bearing mechanism. At the same time, the water surface fluctuation drives the float plate and the sliding plate to move up and down. The sliding plate drives the first lifting frame to move through magnetic attraction. The first lifting frame also drives the generators on both sides to generate electricity alternately through rack and pinion and one-way bearing mechanism. In addition, as the water level rises, the first lifting frame moves upward to change the resistance value connected to the excitation circuit, automatically enhances the stator magnetic field of the generator, improves the power generation efficiency per unit rotation angle and increases rotational damping, thereby more effectively utilizing the kinetic energy of water flow to generate electricity when the flood level rises, realizing intelligent energy capture and recovery. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the flood control and water-retaining gate structure proposed in this invention;

[0024] Figure 2 This is a partial three-dimensional structural diagram of the flood control and water-retaining gate structure proposed in this invention;

[0025] Figure 3 This is a partial three-dimensional structural diagram of the flood control and water-retaining gate structure proposed in this invention;

[0026] Figure 4This is a three-dimensional structural diagram of the driving mechanism proposed in this invention;

[0027] Figure 5 This is a partial cross-sectional view of the flood control and water-retaining gate structure proposed in this invention;

[0028] Figure 6 This is a side sectional view of the flood control and water-retaining gate structure proposed in this invention.

[0029] Figure 7 This is a top sectional view of the flood control and water-retaining gate structure proposed in this invention;

[0030] Figure 8 for Figure 7 A magnified view of part A in the middle;

[0031] Figure 9 for Figure 8 A magnified view of part B in the middle section;

[0032] Figure 10 This is a three-dimensional structural diagram of the door body proposed in this invention;

[0033] Figure 11 This is a three-dimensional structural diagram of the energy recovery mechanism proposed in this invention;

[0034] Figure 12 This is a cross-sectional structural diagram of the energy recovery mechanism proposed in this invention.

[0035] In the diagram: 1. Gantry; 101. Limiting strip; 2. Door body; 201. Square groove; 202. Vertical flow channel; 203. Horizontal flow channel; 204. Through hole; 205. Cavity; 3. Drive mechanism; 301. Fixing frame; 302. Winding wheel; 303. Winding rope; 304. Mounting shaft; 305. Driven bevel gear; 306. Driving bevel gear; 307. Drive shaft; 308. Dual-axis motor; 309. Positioning plate; 4. Slide plate; 401. Floating plate; 402. Guide rail; 403. First permanent magnet; 5. First lifting frame; 501. Second permanent magnet; 502. First rack; 503. Conductive plate; 504. 505. Resistance bar; 506. Guide frame; 507. Guide plate; 6. Connecting shaft; 608. Connecting cylinder; 609. First one-way bearing; 6000. Second one-way bearing; 601. Mounting ring; 602. First gear; 7. Main shaft; 701. Second gear; 8. Second lifting frame; 802. Second rack; 803. Third permanent magnet; 804. Side plate; 805. Guide column; 9. Vertical plate; 901. Fourth permanent magnet; 10. Generator; 11. Sealing cover; 12. Sealing plate; 13. Limiting plate; 14. Protective box; 15. Top cover; 16. Equipment box; 17. Front cover; 18. Controller; 19. Battery. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] Reference Figures 1-12 The flood control gate structure includes: a gate frame 1 and a gate body 2. The gate body 2 is slidably installed in the gate frame 1. A drive mechanism 3 is provided on the top of the gate frame 1. Two square grooves 201 are opened on the front side of the gate body 2. A sealing plate 12 is slidably installed in the square grooves 201. A sliding plate 4 is slidably installed on the front side of the gate body 2. A floating plate 401 is fixedly installed on the front side of the sliding plate 4. The interior of the gate body 2 is provided with a cavity 205 and a vertical flow channel 202. A transverse flow channel 203 is opened at both ends of the vertical flow channel 202. The other end of the transverse flow channel 203 is connected to the corresponding square groove 201. An energy recovery mechanism is provided in the cavity 205.

[0038] The energy recovery mechanism includes: a main shaft 7, two first lifting frames 5, a second lifting frame 8, two connecting shafts 6, and two generators 10. Multiple second permanent magnets 501 are fixedly installed on the front side of the first lifting frame 5, multiple first permanent magnets 403 are fixedly installed on the rear side of the slide plate 4, multiple third permanent magnets 802 are fixedly installed on the rear side of the second lifting frame 8, and a vertical plate 9 is slidably installed in the vertical flow channel 202. Multiple fourth permanent magnets 901 are fixedly installed on the front side of the vertical plate 9.

[0039] In this embodiment, a first rack 502 is fixedly installed on the rear side of the first lifting frame 5. One end of the connecting shaft 6 is fixedly connected to the input shaft of the generator 10. A connecting cylinder 601 is fixedly installed on the other end of the connecting shaft 6. A first one-way bearing 602 is provided inside the connecting cylinder 601. Two first one-way bearings 602 are respectively sleeved on both ends of the main shaft 7. A second one-way bearing 603 is sleeved on the outside of the connecting shaft 6. An installation ring 604 is sleeved on the outside of the second one-way bearing 603. A first gear 605 is fixedly sleeved on the outside of the installation ring 604. The first gear 605 meshes with the first rack 502.

[0040] In this embodiment, the first permanent magnet 403 is magnetically attracted to the corresponding second permanent magnet 501, the third permanent magnet 802 is magnetically attracted to the corresponding fourth permanent magnet 901, the second gear 701 is fixedly sleeved on the outside of the main shaft 7, and the second rack 801 is fixedly installed on the front side of the second lifting frame 8, with the second gear 701 and the second rack 801 meshing with each other.

[0041] In this embodiment, conductive plates 503 are fixedly installed on the side of the two first lifting frames 5 that are close to each other, and the same guide frame 505 is fixedly installed on the other end of the two conductive plates 503. Side plates 803 are fixedly installed on both sides of the second lifting frame 8. Guide posts 804 and guide plates 506 are fixedly installed in the cavity 205. The side plates 803 are slidably sleeved on the outside of the guide posts 804, and the guide frames 505 are slidably sleeved on the outside of the guide plates 506. A guide rail 402 is fixedly installed on the front side of the door body 2, and the slide plate 4 is slidably sleeved on the outside of the guide rail 402.

[0042] In this embodiment, two resistor bars 504 are fixedly installed inside the cavity 205, and the conductive plate 503 is slidably sleeved on the outside of the corresponding resistor bar 504. The generator 10 is equipped with a rotor and a stator. An excitation circuit is connected to the outside of the stator. The top of the resistor bar 504 and the conductive plate 503 are connected in series to the excitation circuit.

[0043] In this embodiment, the drive mechanism 3 includes: a fixed frame 301, a dual-axis motor 308, and two winding wheels 302. A winding rope 303 is fixedly installed on the outer side of the winding wheel 302. The bottom end of the winding rope 303 is fixedly connected to the door body 2. An installation shaft 304 is fixedly installed inside the winding wheel 302. The installation shaft 304 is rotatably installed in the fixed frame 301. A driven bevel gear 305 is fixedly installed at the front end of the installation shaft 304. The dual-axis motor 308 is fixedly installed on the front side of the fixed frame 301. A drive shaft 307 is fixedly installed on each of the two output shafts of the dual-axis motor 308. An active bevel gear 306 is fixedly installed on the drive shaft 307. The active bevel gear 306 meshes with the corresponding driven bevel gear 305.

[0044] The fixing bracket 301 is fixedly installed on the top of the gantry 1. Two positioning plates 309 are fixedly installed on the front side of the fixing bracket 301, and the drive shaft 307 is rotatably installed in the corresponding positioning plate 309.

[0045] In this embodiment, a protective box 14 and an equipment box 16 are fixedly installed on the top of the door 2. A top cover 15 is fixedly installed on the top of the protective box 14. A front cover 17 is fixedly installed on the front side of the equipment box 16 by bolts. A limit plate 13 is fixedly installed on the side wall of the square groove 201. A through hole 204 is opened on the rear side of the cavity 205. A sealing cover 11 is fixedly installed in the through hole 204.

[0046] In this embodiment, limit strips 101 are fixedly installed on both inner walls of the gantry 1, and the door 2 is slidably sleeved on the outside of the limit strips 101. The equipment box 16 is equipped with a controller 18 and a battery 19, and multiple heat dissipation holes are opened at the bottom of the equipment box 16.

[0047] In this embodiment, the dual-axis motor 308 is started to drive the two drive shafts 307 to rotate, and the meshing of the active bevel gear 306 and the driven bevel gear 305 drives the two mounting shafts 304 and the two winding wheels 302 to rotate. The two winding wheels 302 wind up the winding rope 303, thereby driving the door body 2 to rise, thus realizing the opening control.

[0048] Under the impact of the water flow, the pressure deviation at different positions causes the two square plates to experience different pressures. This causes the vertical plate 9 to move up and down through the gas flow effect between the square groove 201, the horizontal flow channel 203, and the vertical flow channel 202. The vertical plate 9 drives the second lifting frame 8 to move up and down through the magnetic attraction between the fourth permanent magnet 901 and the third permanent magnet 802. The second lifting frame 8 drives the second rack 801 to move up and down. The second rack 801 drives the main shaft 7 to reciprocate through meshing with the second gear 701. When the main shaft 7 rotates forward, it drives the left connecting shaft 6 to rotate forward through the first one-way bearing 602 on the left side, generating electricity through the generator 10 on the left side. At this time, the first one-way bearing 602 on the right side rotates idling. When the main shaft 7 rotates in reverse, the first one-way bearing 602 on the left side rotates idling, and the main shaft 7 drives the right connecting shaft 6 to rotate in reverse through the first one-way bearing 602 on the right side, generating electricity through the generator 10 on the right side.

[0049] When the water surface fluctuates up and down, the float plate 401 can move up and down, thereby causing the slide plate 4 to move up and down synchronously. The slide plate 4 drives the first lifting frame 5 to move up and down through the magnetic attraction between the first permanent magnet 403 and the second permanent magnet 501, thereby driving the first rack 502 to move up and down synchronously. The first rack 502 drives the rotating ring to rotate back and forth through meshing with the first gear 605. When the two rotating rings rotate forward, the left rotating ring and the second one-way bearing 603 drive the left connecting shaft 6 to rotate forward, generating electricity through the left generator 10. At this time, the right second one-way bearing 603 rotates idling. When the main shaft 7 rotates in reverse, the left second one-way bearing 603 rotates idling, and the right rotating ring drives the right connecting shaft 6 to rotate in reverse through the right second one-way bearing 603, generating electricity through the right generator 10.

[0050] As the water level rises, the first lifting frame 5 and the conductive plate 503 gradually move upward, which reduces the resistance of the resistor bar 504 connected to the excitation circuit. The excitation circuit drives the stator of the generator 10 to generate more magnetic force, thereby increasing the power generation per unit rotation angle of the connecting shaft 6 and increasing the rotational damping of the connecting shaft 6. Thus, when floods cause the water level to rise, more power can be generated by utilizing the impact force of the flood.

[0051] The flood control and water-retaining gate structure provided by the present invention has been described in detail above. Specific embodiments have been used to illustrate the principles and implementation methods of the present invention. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A flood control gate structure, characterized in that, include: A gantry (1) and a door body (2) are provided. The door body (2) is slidably installed in the gantry (1). A drive mechanism (3) is provided on the top of the gantry (1). Two square slots (201) are opened on the front side of the door body (2). A sealing plate (12) is slidably installed in the square slots (201). A sliding plate (4) is slidably installed on the front side of the door body (2). A floating plate (401) is fixedly installed on the front side of the sliding plate (4). The interior of the door body (2) is provided with a cavity (205) and a vertical flow channel (202). A transverse flow channel (203) is opened at both ends of the vertical flow channel (202). The other end of the transverse flow channel (203) is connected to the corresponding square slot (201). An energy recovery mechanism is provided in the cavity (205). The energy recovery mechanism includes: a main shaft (7), two first lifting frames (5), a second lifting frame (8), two connecting shafts (6) and two generators (10). Multiple second permanent magnets (501) are fixedly installed on the front side of the first lifting frame (5), multiple first permanent magnets (403) are fixedly installed on the rear side of the slide plate (4), multiple third permanent magnets (802) are fixedly installed on the rear side of the second lifting frame (8), a vertical plate (9) is slidably installed in the vertical flow channel (202), and multiple fourth permanent magnets (901) are fixedly installed on the front side of the vertical plate (9).

2. The flood control and water-retaining gate structure according to claim 1, characterized in that, A first rack (502) is fixedly installed on the rear side of the first lifting frame (5). One end of the connecting shaft (6) is fixedly connected to the input shaft of the generator (10). A connecting cylinder (601) is fixedly installed on the other end of the connecting shaft (6). A first one-way bearing (602) is provided inside the connecting cylinder (601). Two first one-way bearings (602) are respectively sleeved on both ends of the main shaft (7). A second one-way bearing (603) is sleeved on the outside of the connecting shaft (6). An installation ring (604) is sleeved on the outside of the second one-way bearing (603). A first gear (605) is fixedly sleeved on the outside of the installation ring (604). The first gear (605) meshes with the first rack (502).

3. The flood control and water-retaining gate structure according to claim 1, characterized in that, The first permanent magnet (403) is magnetically attracted to the corresponding second permanent magnet (501), the third permanent magnet (802) is magnetically attracted to the corresponding fourth permanent magnet (901), the outer side of the main shaft (7) is fixedly sleeved with a second gear (701), and the front side of the second lifting frame (8) is fixedly installed with a second rack (801), the second gear (701) and the second rack (801) mesh with each other.

4. The flood control and water-retaining gate structure according to claim 1, characterized in that, A conductive plate (503) is fixedly installed on one side of each of the two first lifting frames (5), and a guide frame (505) is fixedly installed on the other end of each of the two conductive plates (503). Side plates (803) are fixedly installed on both sides of the second lifting frame (8). A guide post (804) and a guide plate (506) are fixedly installed in the cavity (205). The side plate (803) is slidably sleeved on the outside of the guide post (804), and the guide frame (505) is slidably sleeved on the outside of the guide plate (506). A guide rail (402) is fixedly installed on the front side of the door body (2), and the slide plate (4) is slidably sleeved on the outside of the guide rail (402).

5. The flood control and water-retaining gate structure according to claim 4, characterized in that, Two resistor bars (504) are fixedly installed inside the cavity (205). The conductive plate (503) is slidably sleeved on the outside of the corresponding resistor bar (504). The generator (10) is equipped with a rotor and a stator. An excitation circuit is connected to the outside of the stator. The top of the resistor bar (504) and the conductive plate (503) are connected in series to the excitation circuit.

6. The flood control and water-retaining gate structure according to claim 1, characterized in that, The drive mechanism (3) includes: a fixed frame (301), a dual-axis motor (308) and two winding wheels (302). A winding rope (303) is fixedly installed on the outer side of the winding wheel (302). The bottom end of the winding rope (303) is fixedly connected to the door body (2). An installation shaft (304) is fixedly installed inside the winding wheel (302). The installation shaft (304) is rotatably installed in the fixed frame (301). A driven bevel gear (305) is fixedly installed at the front end of the installation shaft (304). The dual-axis motor (308) is fixedly installed on the front side of the fixed frame (301). A drive shaft (307) is fixedly installed on each of the two output shafts of the dual-axis motor (308). An active bevel gear (306) is fixedly installed on the drive shaft (307). The active bevel gear (306) meshes with the corresponding driven bevel gear (305). The fixing frame (301) is fixedly installed on the top of the gantry (1), and two positioning plates (309) are fixedly installed on the front side of the fixing frame (301). The drive shaft (307) is rotatably installed in the corresponding positioning plate (309).

7. The flood control and water-retaining gate structure according to claim 1, characterized in that, The top of the door (2) is fixedly installed with a protective box (14) and an equipment box (16). The top of the protective box (14) is fixedly installed with a top cover (15). The front cover (17) is fixedly installed on the front side of the equipment box (16) by bolts. A limit plate (13) is fixedly installed on the side wall of the square groove (201). A through hole (204) is opened on the rear side of the cavity (205). A sealing cover (11) is fixedly installed in the through hole (204).

8. The flood control and water-retaining gate structure according to claim 7, characterized in that, Limiting strips (101) are fixedly installed on both inner walls of the gantry (1). The door body (2) is slidably sleeved on the outside of the limiting strips (101). The equipment box (16) is equipped with a controller (18) and a battery (19). Multiple heat dissipation holes are opened at the bottom of the equipment box (16).

Images