Bridge hole flood discharge is used to cut off the structure of the gate dredging device

By designing a floating collection box and opening/closing mechanism in the flood discharge device of bridge openings, the problems of floating debris accumulation and pollution have been solved, and the automatic collection and storage of floating debris has been realized, improving the system's adaptability and safety and reducing maintenance difficulty.

CN122147835APending Publication Date: 2026-06-05SHANXI CHENGDA HIGHWAY SURVEY & DESIGN CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANXI CHENGDA HIGHWAY SURVEY & DESIGN CO LTD
Filing Date
2026-05-08
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing bridge sluice gate flood discharge devices lack an effective mechanism for collecting and treating floating debris in the water. This causes floating debris to accumulate upstream when the gate is closed and pollute downstream water when the gate is opened. Furthermore, traditional manual dredging methods are inefficient and dangerous, while fixed interception nets are prone to clogging, affecting flow capacity and making cleaning and maintenance difficult.

Method used

A drainage structure device was designed, comprising a gate frame, gate plate, lifting column, collection box, winch, and opening and closing mechanism. The floating of the collection box is controlled by the winch and worm gear mechanism. The automatic collection and storage of floating objects is achieved by using a check plate and filter holes. The opening and closing mechanism ensures that the collection box is sealed during flood discharge. The servo motor adjusts the height of the collection box to adapt to changes in water level.

Benefits of technology

It enables in-situ, automatic, and dynamic collection of floating debris, avoids downstream pollution, improves maintenance convenience and operational safety, solves the clogging and adaptability problems of traditional devices, and enhances the robustness and safety redundancy of the system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a bridge hole flood discharge intercepting gate dredging structure device, belonging to the technical field of water conservancy gates, which comprises a gate frame, a gate plate is arranged in the gate frame, and the upper end of the gate plate is movably connected with the upper end of the gate frame through a lifting column; a collecting box controlled by a winch and a worm gear mechanism and capable of floating with the water level is arranged on the upstream side of the gate plate; when the gate is closed, the top box door of the collecting box is automatically opened at the end of the descending stroke of the gate plate through the corresponding toothed plate and spur gear arranged on the gate frame and the gate plate, so that the collecting box becomes a collecting port partially submerged in water; at this time, the water flow naturally pushes the floating objects gathered in front of the gate into the box, the crosswise inclined check plates in the box form a one-way labyrinth structure, allowing the water flow to pass but effectively retaining the floating objects, so that the floating objects are collected in situ, automatically and dynamically during the interception, and the floating objects are fundamentally prevented from entering the downstream when the gate is opened.
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Description

Technical Field

[0001] This invention belongs to the field of water conservancy gate technology, specifically a diversion gate structure device for flood discharge through bridge openings. Background Technology

[0002] A dam is a hydraulic structure used to intercept water flow. It is mainly used in water conservancy and environmental protection projects. The design of dams aims to solve river pollution problems by intercepting and purifying polluted river water to ensure that the water discharged into the ocean meets the standards. In addition, the application of dams reflects human attention to environmental protection by reducing water pollution through technical means and protecting the quality and sustainability of water resources.

[0003] During the flood discharge process in bridge openings, existing intercepting gate devices typically only have a single function of interception or flood discharge, lacking an effective mechanism for collecting and treating floating debris in the water. When the gate is closed, a large amount of floating debris (such as leaves, plastic bottles, foam, etc.) will accumulate in the upstream area in front of the gate. When the gate is opened for flood discharge, these floating debris are directly rushed downstream with the high-speed water flow, which not only seriously pollutes the downstream water body and environment, but may also block the downstream waterway, hit bridge piers or water conservancy facilities, and bring safety and maintenance hazards. In addition, traditional manual salvage methods are inefficient, dangerous, and difficult to adapt to frequent water level fluctuations. Although existing technologies have attempted to set up fixed interception nets or grids, they are very easy to be blocked by debris accumulation, affecting the flow capacity, and are difficult to clean and maintain, making it impossible to achieve automatic and dynamic collection and storage of floating debris.

[0004] Therefore, we propose a diversion gate structure for flood discharge in bridge openings to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to address the problem that existing intercepting gate devices, which typically only have a single function of interception or flood discharge during bridge opening flood discharge, lack an effective mechanism for collecting and treating floating debris in the water. When the gate is closed, a large amount of floating debris (such as leaves, plastic bottles, foam, etc.) accumulates in the upstream area in front of the gate. When the gate is opened for flood discharge, these floating debris are directly rushed downstream with the high-speed water flow, which not only seriously pollutes the downstream water body and environment, but may also block the downstream waterway, collide with bridge piers or water conservancy facilities, and bring safety and maintenance hazards. In addition, traditional manual salvage methods are inefficient, dangerous, and difficult to adapt to frequent water level fluctuations. Although existing technologies have attempted to set up fixed interception nets or grids, they are easily blocked by debris accumulation, affecting the flow capacity, and are difficult to clean and maintain, failing to achieve the problem of automatic and dynamic collection and storage of floating debris. Therefore, this invention proposes an intercepting gate drainage structure device for bridge opening flood discharge.

[0006] The objective of this invention can be achieved through the following technical solution: A gate frame is included, inside which a gate plate is provided. The upper end of the gate plate is movably connected to the upper end of the gate frame via a lifting column. A driving device is provided at the upper end of the lifting column. An mounting plate is provided on the circumferential surface of the lower end of the lifting column. A winch is provided on the upper surface of the mounting plate. A collection box is connected to the winch via a winch rope. The collection box is located on the left side of the gate plate. The top of the collection box is lower on the left and higher on the right. An upper door is provided inside the upper end of the collection box. The right end of the upper door is movably connected to the collection box via a torsion spring and a hinge. The upper surface of the upper door is movably connected to the gate plate via an opening and closing mechanism.

[0007] In a preferred embodiment of the present invention, the inside of the collection box is irregularly provided with several check plates, and the front and rear sides of the collection box are provided with side doors.

[0008] In a preferred embodiment of the present invention, the opening and closing mechanism includes a rotating rod, a second winch is provided on the circumferential surface of the rotating rod, the second winch is connected to the upper box door through a winch rope, the front and rear sides of the rotating rod are rotatably mounted on the left side surface of the gate plate through fixed blocks, the front and rear ends of the rotating rod are provided with spur gears, the right sides of the two spur gears are meshed with toothed plates, and the two toothed plates are respectively fixedly mounted on the left side surface of the front and rear ends of the gate frame.

[0009] In a preferred embodiment of the present invention, connecting blocks are provided on the circumferential surfaces of both ends of the rotating rod, and cleaning brushes are provided on the right side of the lower ends of the two connecting blocks. The cleaning brushes are located below the spur gear, and the right ends of the two cleaning brushes are in close contact with the surfaces of the two tooth plates respectively.

[0010] In a preferred embodiment of the present invention, the winch two is provided in three sets and horizontally arrayed on the rotating rod, and the winch ropes of the three sets of the winch two are respectively connected to the front end, middle and rear end of the upper surface of the upper box door.

[0011] In a preferred embodiment of the present invention, a driving mechanism is provided on the lower right side of the first winch. The driving mechanism includes a worm gear, a worm wheel is meshed with the left side of the worm gear, a rotating shaft is provided at the upper end of the worm wheel, and the rotating shaft is rotatably installed inside the mounting plate. The upper end of the rotating shaft passes through the mounting plate and is fixedly connected to the middle of the first winch.

[0012] In a preferred embodiment of the present invention, the drive mechanism further includes a servo motor, the output end of which is provided with a transmission gear, and the left side of the transmission gear is meshed with a driven gear, the front end of which is fixedly connected to the rear end of the worm gear.

[0013] In a preferred embodiment of the present invention, a protective box is provided on the right side of the mounting plate, and the servo motor, transmission gear, driven gear and worm gear are all located inside the protective box.

[0014] In a preferred embodiment of the present invention, the worm gear, the shaft, and the winch are each provided in six sets, and the six sets of the winch are arranged in a horizontal array on the mounting plate.

[0015] In a preferred embodiment of the present invention, vertical rods are provided at both the left and right ends of the upper surface of the collection box, and the lower end of the winch rope of the winch is fixedly connected to the vertical rods.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) By setting up a collection box on the upstream side of the gate, which is controlled by a winch and a worm gear mechanism and can float with the water level, when the gate is closed, the toothed plates and spur gears set on the gate frame and the gate plate respectively will automatically open the top door of the collection box at the end of the gate's downward stroke, making it a collection port that is partially submerged underwater. At this time, the water flow will naturally push the floating objects gathered in front of the gate into the box. The staggered and inclined check plates in the box form a one-way labyrinth structure, which allows the water flow to pass through but effectively blocks the floating objects, thereby realizing the in-situ, automatic and dynamic collection of floating objects during the interception period, fundamentally preventing them from entering the downstream when the gate is opened. (2) Through the opening and closing mechanism, when the gate is opened for flood discharge, the opening and closing mechanism will first drive the box door to close and lock during the initial stage of gate lifting, ensuring that the collected material is sealed in the box. Then the entire collection box is raised to the water surface with the gate. This timing design ensures that the collected floating material will not be washed out under the impact of high-speed flood discharge, thus preventing secondary pollution. The collection box and its side boxes are equipped with filter holes. After the box is raised to the water surface, the water is drained to reduce weight, and the staff can safely and conveniently open the side boxes for cleaning, which greatly improves the convenience of maintenance and the safety of operation. (3) The self-locking characteristics of the worm gear in the drive mechanism ensure the stability of the preset floating height of the collection box, so that it can resist the impact of water flow and not drift. At the same time, the winch rope leaves a reasonable fluctuation space, so that the collection box can rise and fall slightly with the water level and always maintain an efficient collection posture, which solves the defects of traditional fixed interception facilities that are easy to clog and difficult to adapt. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention in cross-section; Figure 3 This is a top-section three-dimensional structural diagram of the present invention; Figure 4 This is a three-dimensional structural diagram of the opening and closing mechanism of the present invention; Figure 5 This is a three-dimensional structural diagram of the driving mechanism of the present invention.

[0019] In the diagram: 1. Gate frame; 2. Gate plate; 3. Lifting column; 4. Mounting plate; 5. Winch 1; 6. Collection box; 601. Check plate; 602. Side box door; 603. Top box door; 604. Torsion spring; 7. Opening and closing mechanism; 701. Rotating rod; 702. Winch 2; 703. Spur gear; 704. Tooth plate; 705. Connecting block; 706. Cleaning brush; 8. Protective box; 9. Drive mechanism; 901. Servo motor; 902. Transmission gear; 903. Driven gear; 904. Worm; 905. Worm wheel; 906. Rotating shaft; 10. Vertical rod. Detailed Implementation

[0020] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. 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.

[0021] Furthermore, the terms "first" and "second" are used for illustrative purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this disclosure, "a set" means two or more, unless otherwise explicitly specified.

[0022] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.

[0023] Although the terms first, second, etc., are used in some examples herein to refer to various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, first interface and second interface, etc., are used. Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms, unless the context indicates otherwise.

[0024] Although no different definitions exist, all terms, including technical and scientific terms used herein, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. Terms defined in commonly used dictionaries shall be further interpreted as having a meaning consistent with the relevant technical literature and the message of the present disclosure, and shall not be over-interpreted as having an ideal or overly formulaic meaning unless otherwise defined.

[0025] Please see Figure 1 - Figure 5As shown, a flood diversion gate structure for bridge openings includes a gate frame 1. A gate plate 2 is installed inside the gate frame 1, and the upper end of the gate plate 2 is movably connected to the upper end of the gate frame 1 via a lifting column 3. A driving device is installed at the upper end of the lifting column 3 (this is prior art and will not be described in detail). An mounting plate 4 is installed on the circumferential surface of the lower end of the lifting column 3, so that when the lifting column 3 drives the gate plate 2 to rise and fall, the mounting plate 4 also rises and falls synchronously. A winch 5 is installed on the upper surface of the mounting plate 4, and a collection box 6 is connected to the winch 5 via a winch rope. The collection box 6 is located on the left side of the gate plate 2. Vertical rods 10 are installed at both ends of the upper surface of the collection box 6. The lower end of the winch rope of the winch 5 is fixedly connected to the vertical rods 10. The top of the collection box 6 is positioned with a lower left side and a higher right side. This design ensures that when the collection box 6 floats on the water surface, its upper opening is submerged. This allows the floating debris to be pushed more easily into the collection box 6 by the water flow. The inside of the collection box 6 is irregularly equipped with several check valves 601. These check valves 601 are staggered, tilted, or fixed at a specific angle to the inner wall of the collection box 6. This effectively creates a one-way obstruction or labyrinthine channel when the collection box 6 sways due to upstream water fluctuations. It allows water to pass through but traps floating debris, causing the debris inside the collection box 6 to float up and down before flowing to the check valves 601. After the water level drops below the surface, the floating debris will be blocked by the check plate 601, reducing the probability of the floating debris flowing out of the collection box 6. The collection box 6 has side doors 602 on both the front and rear sides. The side doors 602 allow the gate plate 2 to move the collection box 6 upwards. Once the collection box 6 is above the water surface, staff can open the side doors 602 to remove the collected floating debris, facilitating subsequent use of the collection box 6. The upper part of the collection box 6 has an upper door 603, and the right end of the upper door 603 is movably connected to the collection box 6 via a torsion spring 604 and a hinge. The torsion spring 604 provides the driving force for the closing of the upper door 603, ensuring that the upper door 603 remains closed without external force. In the closed state, the upper surface of the upper box door 603 is movably connected to the gate plate 2 through the opening and closing mechanism 7. The left and right sides, bottom, and surface of the side box door 602 of the collection box 6 are all provided with water filter holes. The diameter of the water filter holes is smaller than that of typical river garbage such as leaves and plastic bottles. When the collection box 6 is moved upward out of the water, the water inside the collection box 6 can be discharged through the water filter holes, reducing the weight of the collection box 6, preventing floating objects from leaking out, and reducing the stress and damage to the winch rope of the winch 5. The setting of the vertical rod 10 at the upper end of the collection box 6 allows for more space at the lower end of the winch rope. As a result, when the upper box door 603 is flipped open and closed, it will not come into contact with the winch rope, avoiding wear and tear on the winch rope from the back and forth opening and closing of the upper box door 603, and improving the service life of the winch rope. It should be noted that the left side of gate 2 is upstream and the right side is downstream, and gate 2 and collection box 6 have two states: In state one, when the gate 2 is closed, the collection box 6 will float on the upstream water surface, and at this time the upper door 603 of the collection box 6 will be opened through the opening and closing mechanism 7. Then the floating objects that have gathered on one side of the gate 2 upstream will flow to the collection box 6 and flow into the interior of the collection box 6 through the opening at the top of the collection box 6. The pollutants in the water are collected in a concentrated manner to prevent the floating objects from entering the downstream with the water flow when the gate is opened and the water is released, thus polluting the downstream environment. In state two, when the gate 2 moves upward to open the river channel, the collection box 6 will move upward along with the gate 2. In the initial stage of the gate 2 rising, the opening and closing mechanism 7 will close the upper door 603 of the collection box 6, and then the collection box 6 will be lifted off the water surface to prevent the strong impact of the water flow from washing away the floating objects inside the collection box 6 when the gate is opened to release water.

[0026] The opening and closing mechanism 7 includes a rotating rod 701, on the circumferential surface of which a second winch 702 is mounted. The second winch 702 is connected to the upper door 603 via a winch rope. Three sets of the second winches 702 are arranged in a horizontal array on the rotating rod 701. The winch ropes of the three sets of second winches 702 are respectively connected to the front end, middle, and rear end of the upper surface of the upper door 603. The arrangement of the three sets of second winches 702 can distribute the pulling force provided to the upper door 603 when the rotating rod 701 rotates, so that the upper door 603 can be opened and closed stably. It also ensures that the upper door 603 is subjected to balanced force during opening and closing, avoiding single point of impact. The deformation or jamming caused by force enables the upper box door 603 to open and close smoothly and synchronously, reducing the damage rate at the connection between the upper box door 603 and the collection box 6 and improving the service life of the upper box door 603. The front and rear sides of the rotating rod 701 are rotatably mounted on the left side surface of the gate plate 2 through fixing blocks, which limit the installation of the rotating rod 701 without affecting the rotation of the rotating rod 701. Both the front and rear ends of the rotating rod 701 are provided with spur gears 703, and the right sides of the two spur gears 703 are meshed with toothed plates 704. The two toothed plates 704 are respectively fixedly installed on the left and right sides of the gate frame 1. The side surface allows the gate 2 to move up and down, causing the spur gear 703 to mesh with the toothed plate 704, thus rotating the spur gear 703 and driving the rotating rod 701 and the winch 702 to rotate, enabling the winch 702 to perform winding or unwinding operations. Connecting blocks 705 are provided on the circumferential surfaces at both ends of the rotating rod 701. Cleaning brushes 706 are provided on the right side of the lower end of each connecting block 705, and are located below the spur gear 703. The right ends of the two cleaning brushes 706 are in close contact with the surfaces of the two toothed plates 704. Since the toothed plate 704 is installed on the gate frame 1, its lower end is often partially submerged in water. As a result, algae, silt and other impurities can easily adhere to the toothed plate 704. At this time, the cleaning brush 706 located below the spur gear 703, driven by the gate plate 2, will first clean the toothed plate 704, removing any algae, silt and other impurities that may be attached to the surface of the toothed plate 704. Then, when the spur gear 703 meshes with the toothed plate 704, there will be no slippage, increased wear or jamming of the mechanism. This minimizes the common failure points of open-air underwater mechanical devices and improves the performance of the spur gear 703. A drive mechanism 9 is located on the lower right side of winch 5. The drive mechanism 9 includes a worm gear 904, with a worm wheel 905 meshing with its left side. A rotating shaft 906 is located at the upper end of the worm wheel 905, and the shaft 906 is rotatably mounted inside the mounting plate 4. The upper end of the shaft 906 passes through the mounting plate 4 and is fixedly connected to the middle of winch 5. Due to the characteristics of the worm wheel 905 and worm gear 904, the worm wheel 905 cannot drive the worm gear 904 to rotate in the opposite direction. Therefore, winch 5 will not rotate spontaneously, thus preventing accidental rotation when the collection box 6 is floating on the water surface. The self-rotation ensures that the preset height of the collection box 6 remains stable under the influence of external forces such as flood impact and turbulent water flow, ensuring that the collection box 6 always has an efficient collection function. The drive mechanism 9 also includes a servo motor 901, and a transmission gear 902 is set at the output end of the servo motor 901. A driven gear 903 is meshed with the left side of the transmission gear 902. The front end of the driven gear 903 is fixedly connected to the rear end of the worm gear 904. The power drive of the servo motor 901, transmission gear 902 and driven gear 903 is not the only drive. The moving structure includes, but is not limited to, installing a handwheel at the rear end of the worm gear 904, allowing operators to manually rotate the handwheel to drive the worm gear 904 to rotate. Alternatively, the servo motor 901 can be linked with a water level sensor and controller to achieve automatic and dynamic adjustment of the height of the collection tank 6, adapting to seasonal water level changes or severe fluctuations during flood peaks. The worm gear 905, shaft 906, and winch 5 are each equipped with six sets. These six sets of winches 5 are horizontally arrayed on the mounting plate 4. The redundant design of multiple winches and power sources enhances the overall robustness of the system. The array of winches 5 and worm gears 905 and 904 are synchronously driven by a common worm gear 904. This not only evenly distributes the weight of the collection box 6 and its load, greatly reducing the stress on individual winches and extending their lifespan, but more importantly, it forms a "multi-point, multi-line" suspension system. This ensures that if a single winch is accidentally damaged during subsequent use, the remaining winches can still provide necessary support and stability, preventing the collection box 6 from tipping over or losing its function. This buys time for maintenance and greatly enhances the necessary safety redundancy of key flood control equipment. It should be noted that the initial height of the collection box 6 needs to be adjusted according to the water level of the location. First, the local average water level needs to be investigated. Then, the servo motor 901 drives the transmission gear 902, driven gear 903, and worm gear 904 to rotate. This causes the worm gear 904 to drive the worm wheel 905, rotating shaft 906, and winch 5 to rotate, thereby causing the winch 5 to perform winding or unwinding operations, so that the collection box 6 stays at a suitable height. This height is such that when the gate 2 closes the river channel, the collection box 6 can float on the water surface, and the upper opening of the collection box 6 needs to be submerged in the water. After adjustment, based on the characteristics of the winch rope and winch 5, the collection box 6 will have a vertical floating space of, for example, 100mm. When there are water level fluctuations on the upstream water surface, the collection box 6 will float up and down within a certain range. This space is usually achieved by setting a "relaxed winding area" on the winch or using an elastic buffer element (such as a spring). The amount of this space can be adaptively adjusted according to the fluctuation range of the actual water level. This floating not only keeps the inlet of the collection box 6 at the optimal collection depth, but more importantly, it releases the repeated stress on the rigid suspension system and the door opening and closing rope caused by frequent slight changes in water level, avoiding structural fatigue and making the entire system run more smoothly and durable. Similarly, a fluctuation space is also set between the winch rope of the second winch 702 and the upper door 603, so that when the collection box 6 floats up and down, the upper door 603 will flip back and forth slightly. The back and forth flipping of the upper door 603 will only slightly increase or decrease the opening at the top of the collection box 6, without affecting the entry of floating objects into the interior of the collection box 6.

[0027] A protective box 8 is located on the right side of the mounting plate 4. The servo motor 901, transmission gear 902, driven gear 903, and worm gear 904 are all housed inside the protective box 8. The protective box 8 protects the servo motor 901 and other components, physically isolating the precision mechanical parts from the humid, dusty, and temperature-volatile outdoor environment. This prevents direct rain erosion and sun aging, effectively blocking wind and dust from entering the transmission system and avoiding wear caused by lubrication failure. At the same time, the protective box 8 also provides an additional protective layer for areas prone to snowfall and freezing, ensuring the operational stability of the core drive components under various climatic conditions and structurally reducing the frequency and difficulty of daily maintenance.

[0028] In use, this invention first investigates the average water level of the site, then starts the servo motor 901. The servo motor 901 drives the transmission gear 902 to rotate, which in turn drives the driven gear 903 and the worm gear 904 to rotate. The worm gear 904 then drives multiple sets of worm wheels 905, the rotating shaft 906, and the winch 5 to rotate. The winch 5 rotates to wind or unwind the rope, thereby lifting or lowering the collection box 6 until it is at a suitable height on the left side of the gate 2. At this point, the servo motor 901 stops rotating. 2 is located above the water surface. The spur gear 703 does not mesh with the toothed plate 704. The up and down movement of the collection box 6 will not affect the use of the upper box door 603. Of course, due to the setting of the torsion spring 604, when the collection box 6 moves downward, the winch 702 will automatically unwind due to the action of the torsion spring 604. However, when the collection box 6 moves upward, the winch rope connected to the winch 702 on the upper box door 603 will become slack. At this time, it is necessary to manually rotate the rotating rod 701 to perform a certain degree of winding work on the winch 702 to avoid the winch rope on the upper box door 603 being too slack and affecting subsequent work. Then, the drive unit is activated, and the gate 2 is moved downwards via the lifting column 3. Simultaneously, the mounting plate 4 and the collection box 6 also move downwards in sync. Once the collection box 6 is partially submerged in the water, it stops moving downwards, while the gate 2 continues to move downwards. The short downward stroke of the gate 2 after the collection box 6 contacts the water surface and stops descending due to buoyancy is the stroke in which the spur gear 703 begins to mesh with the toothed plate 704, thus driving the upper gate 603 to open. During the downward movement, when the collection box 6 reaches the water surface, the spur gear 703 meshes with the toothed plate 704. As the gate 2 moves downward, it rotates, causing the rotating rod 701 and the winch 702 to rotate. This causes the winch 702 to wind up, and through the winch rope, it drives the upper box door 603 to rotate upward and open the upper end of the collection box 6. After the gate 2 is completely closed, the upper box door 603 rotates ninety degrees, fully opening the upper end of the collection box 6. At this time, during the closing process of the gate 2, the floating objects will be driven by the water flow to the left side of the gate 2 and then float at the opening of the collection box 6. With the rise and fall of the water level, the floating objects will enter the interior of the collection box 6 and be automatically collected. When it is necessary to open the sluice gate to release water, the upper chamber door 603 closes first when the gate plate 2 rises, and then the collection box 6 is lifted off the water surface. The drive device drives the gate plate 2 to move upward through the lifting column 3. The upward movement of the gate plate 2 causes the spur gear 703 to rotate in the opposite direction through the toothed plate 704, thereby driving the rotating rod 701 and the second winch 702 to rotate in the opposite direction. The second winch 702 unwinds the winch rope, causing the spring force of the torsion spring 604 to be released, closing the upper chamber door 603 and preventing the floating objects inside the upper chamber door 603 from flowing out. After the gate plate 2 has moved upward, the collection box 6 moves to the top of the water surface. The staff can open the side chamber doors 602 on the front and rear sides of the collection box 6 to take out the floating objects inside the collection box 6 from the side, clean the inside of the collection box 6, and then use it for the next time.

[0029] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A flood diversion gate structure for bridge openings, comprising a gate frame (1), wherein a gate plate (2) is provided inside the gate frame (1), and the upper end of the gate plate (2) is movably connected to the upper end of the gate frame (1) via a lifting column (3), wherein a driving device is provided at the upper end of the lifting column (3), characterized in that, The lower end of the lifting column (3) is provided with a mounting plate (4), and the upper surface of the mounting plate (4) is provided with a winch (5). The winch (5) is connected to a collection box (6) by a winch rope. The collection box (6) is located on the left side of the gate (2). The top of the collection box (6) is set with the left side lower and the right side higher. The upper end of the collection box (6) is provided with an upper door (603). The right end of the upper door (603) is movably connected to the collection box (6) by a torsion spring (604) and a hinge. The upper surface of the upper door (603) is movably connected to the gate (2) by an opening and closing mechanism (7).

2. The intercepting gate diversion structure device for flood discharge in bridge openings according to claim 1, characterized in that, The inside of the collection box (6) is irregularly equipped with several check plates (601), and the front and rear sides of the collection box (6) are equipped with side doors (602).

3. The intercepting gate diversion structure device for flood discharge in bridge openings according to claim 1, characterized in that, The opening and closing mechanism (7) includes a rotating rod (701), and a winch (702) is provided on the circumferential surface of the rotating rod (701). The winch (702) is connected to the upper box door (603) by a winch rope. The front and rear sides of the rotating rod (701) are rotatably installed on the left side of the gate plate (2) by fixing blocks. The front and rear ends of the rotating rod (701) are provided with spur gears (703). The right sides of the two spur gears (703) are meshed with toothed plates (704). The two toothed plates (704) are respectively fixedly installed on the left side of the front and rear ends of the gate frame (1).

4. The intercepting gate diversion structure device for flood discharge in bridge openings according to claim 3, characterized in that, Connecting blocks (705) are provided on the circumferential surfaces at both ends of the rotating rod (701). Cleaning brushes (706) are provided on the right side of the lower end of the two connecting blocks (705), and the cleaning brushes (706) are located below the spur gear (703). The right ends of the two cleaning brushes (706) are in close contact with the surfaces of the two toothed plates (704).

5. A flood diversion gate structure device for bridge opening flood discharge according to claim 3, characterized in that, The winch two (702) is provided in three sets and is horizontally arrayed on the rotating rod (701). The winch ropes of the three sets of the winch two (702) are respectively connected to the front end, middle and rear end of the upper surface of the upper box door (603).

6. The intercepting gate diversion structure device for flood discharge in bridge openings according to claim 1, characterized in that, A drive mechanism (9) is provided on the lower right side of the first winch (5). The drive mechanism (9) includes a worm (904). A worm wheel (905) is meshed with the left side of the worm (904). A rotating shaft (906) is provided at the upper end of the worm wheel (905). The rotating shaft (906) is rotatably installed inside the mounting plate (4). The upper end of the rotating shaft (906) passes through the mounting plate (4) and is fixedly connected to the middle of the first winch (5).

7. A flood diversion gate structure device for bridge opening flood discharge according to claim 6, characterized in that, The drive mechanism (9) also includes a servo motor (901), the output end of which is provided with a transmission gear (902), and the left side of the transmission gear (902) is meshed with a driven gear (903), the front end of which is fixedly connected to the rear end of the worm (904).

8. A flood diversion gate structure device for bridge opening flood discharge according to claim 7, characterized in that, A protective box (8) is provided on the right side of the mounting plate (4), and the servo motor (901), transmission gear (902), driven gear (903) and worm gear (904) are all located inside the protective box (8).

9. A flood diversion gate structure device for bridge opening flood discharge according to claim 6, characterized in that, The worm gear (905), the shaft (906), and the winch (5) are all provided in six sets, and the six sets of the winch (5) are arranged in a horizontal array on the mounting plate (4).

10. A flood diversion gate structure device for bridge opening flood discharge according to claim 1, characterized in that, Vertical rods (10) are provided on both the left and right ends of the upper surface of the collection box (6), and the lower end of the winch rope of the winch (5) is fixedly connected to the vertical rods (10).