A gear-driven, vertically rotating, fully rotating circular gate system for flood and tide control.

Abstract

This utility model discloses a gear-driven, vertically rotating, fully rotatable circular gate flood and tide control system. It comprises a fully rotatable circular gate, a vertical gear drive, a vertical rack, and a frame, working in tandem to achieve flood and tide control, navigation, and passage functions. The circular gate has a multi-layered cylindrical structure, with bearings penetrating the frame on both sides, and pressure relief holes on the outer layer. The bearings are horizontally embedded in the transmission cavity of the vertical gear drive and can rotate. Guide gears are nested and fixed within the bearings of the frame section. A first rack, guide rail, and second rack are fixed to the outer facade of the frame, with the guide gear meshing vertically with the first rack. The vertical gear drive is clamped to the outer facade of the frame, with its internal gear meshing with the second rack, providing self-locking. It drives the gate and guide gear to rotate vertically along the first rack. After submersion, the pier stabilizes and closes the gate; reversing the direction opens it. A fully open gate provides a wide navigation opening, and the side gates form a pedestrian passage with the interior, meeting the needs of large-span, high-head, long-stroke operation, navigation, and passage.

Description

Technical Field

[0001] This utility model relates to the field of gate and operation technology, specifically to a gear-driven vertically driven full-rotation circular gate system for flood and tide blocking. Background Technology

[0002] In water conservancy and flood control projects in cities along rivers and coasts, in order to resist the intrusion of storm surges and floods, protect the safety of the core urban areas, and ensure that the river estuary meets the needs of large ships, it is often necessary to build sluice gate facilities with both flood control and navigation capabilities at wide river estuaries to achieve the opening and closing control of the river estuary.

[0003] However, traditional flood and tide control systems mainly employ combinations of multiple flat gates, arched gates, and gate piers, or large gate types such as triangular gates and floating gates to accommodate navigation. This leads to a growing contradiction between flood and tide control and navigation functions when used in wide river estuaries (over 100 meters wide), as the gates cannot effectively provide sufficiently wide navigation passages. For example, floating gates, when submerged, lack multi-span gate piers. While this can meet high-level navigation requirements, the lack of support and the heavy gate body make them susceptible to water flow impacts during synchronous or suspended rotation. Under complex hydraulic and engineering mechanics, this can easily lead to gate deformation, opening and closing malfunctions, or even failure to close properly for flood control. Utility Model Content

[0004] In view of the aforementioned problems, and in conjunction with the first aspect of this utility model, an embodiment of this utility model provides a gear-driven vertically driven full-rotation circular gate flood and tide blocking system, the method comprising:

[0005] A gear-driven, vertically driven, fully rotating circular gate flood and tide blocking system includes a fully rotating circular gate, a vertical gear drive, bearings, guide gears, a first rack, a second rack, and a frame. The frame is symmetrically arranged in opening and closing towers on both banks of the river. The fully rotating circular gate has a multi-layered cylindrical structure, with an outer circular gate plate on the outside and multiple sets of clamping plates on the inside. The outer circular gate plate and the clamping plates are connected by radially arranged ribs and support plates. Multiple pressure relief holes are formed on the surface of the outer circular gate plate. Bearings are extended outward at the axis at both ends of the fully rotating circular gate, and guides are nested on the surface of the frame through the bearings. The gear, the bearing extends horizontally and is embedded in the internal transmission cavity of the vertical gear driver, and can rotate freely; the downstream side facade of the frame is vertically provided with a first rack, the upstream side facade of the frame is vertically provided with a guide rail, and multiple sets of second racks are vertically fixed around the outer facade of the frame; the guide gear meshes with the first rack and fits against the guide rail; the vertical gear driver is mounted on the outer facade of the frame in a hoop-like shape, in a fully or semi-enclosed state, and meshes with the second racks on the outer facade of the frame through a gear built into the inner wall; the connecting beam is arranged between the frames, and the support pier is arranged at the bottom of the frame on the riverbed.

[0006] Furthermore, the bearing extends to the frame section, the guide gear is nested and fixed on the bearing surface, and the guide gear meshes with the first rack on the downstream side of the frame and is in contact with the guide rail on the upstream side. The bearing drives the full-rotation circular gate to rotate fully through the meshing of the first rack and the guide gear, thereby achieving vertical displacement.

[0007] Furthermore, the vertical gear driver has multiple sets of built-in gears arranged at different angles on its inner wall. The built-in gears mesh with the second rack on the frame. The vertical gear driver has a transmission cavity, and the bearing extends horizontally and is embedded in the transmission cavity and can rotate freely. The built-in gears are self-locked when they mesh with the second rack through the vertical gear driver, or the driver can drive the built-in gears to mesh along the surface of the second rack, forming a vertical up-and-down displacement, which drives the bearing and the guide gear to rotate synchronously. Under the drive of the vertical gear driver, the bearing drives the fully rotating circular gate to rotate synchronously, forming a vertical up-and-down displacement.

[0008] Furthermore, both ends of the fully rotating circular gate are equipped with end caps, and the end caps are equipped with side doors. The interior of the fully rotating circular gate is opened through the support plates to form an internal pedestrian passage. After the gate is fully connected, it forms a passage connecting the left and right banks.

[0009] Furthermore, the end plate is a circular plate structure, serving as the closed side plates at both ends of the fully rotating circular gate; the side gate is opened or closed by a hydraulically operated upward-opening gate.

[0010] Furthermore, the passageway gate is opened on several support plate facades along the axial direction of the fully rotating circular gate, forming the internal pedestrian passageway and extending to the side gate, thus forming a through passageway connecting the left and right banks.

[0011] Furthermore, multiple sets of pressure relief holes are provided on the outer plate surface of the circular gate. The pressure relief holes are opened or closed by hydraulic opening and closing to realize water intake into the outer cavity of the fully rotating circular gate.

[0012] Furthermore, the fully rotating circular gate is provided with multiple sets of ribs and support plates along the axial direction. The support plates and ribs are arranged radially inside the fully rotating circular gate. The ribs are radially arranged between the outer plate of the circular gate and the clamping plate, and the support plates are radially arranged inside the clamping plate in a vertical state. The two ends of the ribs and support plates are respectively fixedly connected to the outer plate of the circular gate and the clamping plate to form the support frame of the fully rotating circular gate.

[0013] Furthermore, the support is fixed to the bottom of the river channel, and the support is fixedly connected to the bottom of the frame.

[0014] Furthermore, the two ends of the connecting beam are respectively connected to the frame, and the connecting beam is arranged along the direction of the bank.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The fully rotating circular gate has a cylindrical structure. Normally, it is raised to the top of the inner frame of the opening and closing tower and self-locks, forming a wide navigation hole below the gate, which is the fully open state and can accommodate high-level navigation below the gate. When storm surges and floods occur, the vertical gear drive unlocks and moves vertically downward along the second rack of the frame, driving the guide gear and bearing to rotate, so that the gate moves down a long stroke and descends stably. After reaching the riverbed, it self-locks and blocks floods and tides, and successfully realizes the functional conversion between high-level navigation and flood and tide blocking.

[0017] 2. The gate body is supported by a circular gate outer plate, several clamping plates, radial ribs, and support plates forming a supporting frame. It has sufficient structural ring stiffness, which can effectively resist high water pressure loads and prevent water pressure stress concentration from causing gate deformation or twisting. It is significantly adapted to the technical requirements of large-span and high-head applications and is more suitable for flood control and tide blocking in wide river mouths while also meeting the needs of high-level navigation.

[0018] 3. The full-rotation circular gate uses a vertical gear drive for opening and closing, which has strong operating load capacity, high efficiency, and is more suitable for long-stroke continuous and stable operation. The vertical gear drive is arranged in a clamp-type wall-mounted state. It achieves self-locking when stopped or stable vertical operation by meshing with the second rack through the internal gear. One end of the bearing is directly connected to the transmission cavity through horizontal embedding and can rotate freely. The other end is directly fixed to the gate body of the full-rotation circular gate, which converts the vertical displacement of the vertical gear drive into the gate's lifting and lowering operation, realizing the vertical opening or closing of the full-rotation gate. The guide rail on the upstream side of the frame controls the guide gear, ensuring that the guide gear is always meshed with the first rack, and controlling the guide gear and bearing to drive the gate to operate vertically and stably.

[0019] 4. When the gate is lowered into the water, several pressure relief holes on the outer plate of the circular gate are opened by the hydraulically opened gate. Water flows through the pressure relief holes into the outer cavity of the gate, which can balance the water pressure inside and outside the gate, relieve the buoyancy of the circular gate, and promote the smooth lowering of the circular gate into the water.

[0020] 5. The fully rotating circular gate has several passage doors inside to form an internal pedestrian passage. After the side doors of the end caps are opened, the left and right banks can be connected. During routine maintenance, the gate is in a high position and does not need to be submerged in water. Maintenance personnel can access the interior for maintenance through the pedestrian passage, reducing the difficulty of maintenance operations. The supports are fixed to the bottom of the frame, which is conducive to the stability of the gate when it is submerged. Attached Figure Description

[0021] Figure 1 This is an elevation view of the upstream and downstream sides of this utility model.

[0022] Figure 2 This is a schematic diagram of the flood control process of this utility model.

[0023] Figure 3 This is an enlarged view of the inside of the gate of this utility model.

[0024] Figure 4 This is a process diagram of the vertical gear drive of this utility model.

[0025] Figure 5 This is the first elevation view of the end cap plate of this utility model.

[0026] Figure 6 This is the second elevation view of the end cap plate of this utility model.

[0027] Figure 7 This is a conceptual process drawing of the vertical gear drive of this utility model.

[0028] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0029] 1. Fully rotating circular gate; 2. Circular gate outer plate; 3. Clamping plate; 4. Rib plate; 5. Support plate; 6. Connecting beam; 7. Guide gear; 8. Vertical gear drive; 9. First rack; 10. Guide rail; 11. End plate; 12. Hydraulic tilting gate; 13. Bearing; 14. Passage door; 15. Pedestrian passage; 16. Side door; 17. Frame; 18. Second rack; 19. Support; 20. Pressure relief hole; 21. Transmission chamber; 22. Internal gear. Detailed Implementation

[0030] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0031] Example:

[0032] like Figures 1 to 7 As shown, this utility model provides a gear-driven vertically driven full-rotation circular gate flood control and tide blocking system, including a full-rotation circular gate 1, a guide gear 7, a vertical gear driver 8, a first rack 9, a bearing 13, a frame 17, a second rack 18, and an internal gear 22, which work together to form an operating scheme system. The full-rotation circular gate 1 is a cylindrical structure with an outer circular gate plate 2 on the outside and several clamping plates 3 on the inside. The outer circular gate plate 2 and the clamping plates 3 are connected by radially arranged ribs 4 and support plates 5. The frame 17 is symmetrically arranged in the opening and closing towers on both sides of the river. Bearings 13 are horizontally fixed to the outer side of the axis at both ends of the full-rotation circular gate 1. Guide gears 7 are fixedly nested on the surface of the section between the bearings 13 and the frame 17 extending horizontally into the opening and closing towers. A first rack 9 is vertically fixed on the downstream side of the frame 17. The guide gear 7 and the first rack 9 are connected. The frame 17 is vertically fixed with a guide rail 10 on its upstream side facade, and the guide gear 7 is in contact with the guide rail 10. The frame 17 is vertically fixed with a second rack 18 on its outer facade. The vertical gear drive 8 is arranged in a hoop-like manner on the outer facade of the frame 17 and meshes with the second rack 18 on the outer facade of the frame 17 through a gear 22 built into the inner wall. The bearing 13 extends horizontally and is embedded in the transmission cavity 21 inside the vertical gear drive 8 and can rotate freely, forming an effective transmission connection. The connecting beam 6 is arranged between the frames 17, and the support pier 19 is arranged at the bottom of the frame 17 on the riverbed.

[0033] The fully rotating circular gate 1 is equipped with a circular gate outer plate 2 and several clamping plates 3. The multi-layer structure is connected by ribs 4 and support plates 5, which can improve the overall rigidity of the fully rotating circular gate 1 and meet the structural rigidity requirements of flood control and tide blocking in large-span rivers. At the same time, the cylindrical structure ensures that the fully rotating circular gate 1 is subjected to balanced forces at any angle and height, avoiding deformation or twisting under high water head and ensuring structural stability during flood control and tide blocking. The above forms a gear-driven vertically driven fully rotating circular gate flood control and tide blocking system, which meets the requirements of high water head flood control in large-span rivers and also takes into account the requirements of navigation.

[0034] The frame 17 is symmetrically arranged in the opening and closing towers on both sides of the river channel, providing an installation foundation for components such as the full-rotation circular gate 1, vertical gear drive 8, first rack 9, second rack 18, and guide rail 10. The bearing 13 is located on the outer side of the shaft at both ends of the full-rotation circular gate 1 and is fixedly connected. The surface of the bearing 13 is fixedly nested with guide gear 7. The two ends of the bearing 13 extend horizontally to the space between the frame 17. The guide gear 7 meshes with the first rack 9 on the downstream side of the frame 17 and fits against the guide rail 10, which can control and realize the effective vertical displacement between the full-rotation circular gate 1 and the frame 17, providing a control path for the raising and lowering of the full-rotation circular gate 1.

[0035] The vertical gear drive 8 is mounted on the outer facade of the frame 17 column in a clamp-like manner, meshing with the second rack 18 on the frame 17 and sleeved at the end of the bearing 13. It can stop and lock itself or move up and down along the second rack 18, driving the bearing 13 to rotate, thereby driving the guide gear 7 and the full-rotation circular gate 1 to rotate synchronously, forming up and down lifting. The clamp-type wall-mounted installation method is simple and direct to drive, has a large driving load, is stable in continuous operation, can adapt to long strokes, and saves installation space. At the same time, it is convenient for the maintenance and repair of the vertical gear drive 8, reducing the difficulty of later operation and maintenance.

[0036] The upstream side of the frame 17 is equipped with a guide rail 10, which can guide the guide gear 7 to maintain stable vertical displacement and control horizontal displacement, ensuring that the guide gear 7 and the first rack 9 are always meshed, preventing the guide gear 7 from disengaging from the first rack 9 during the lifting process, avoiding transmission failure caused by gear disengagement, ensuring the continuous and stable lifting operation of the full-rotation circular gate 1, and ensuring the gate opens or closes normally.

[0037] like Figures 1 to 4As shown, bearings 13 are fixed to the outer sides of both ends of the full-rotation circular gate 1 and extend horizontally between the frames 17. Guide gears 7 are fixedly sleeved on the surface of the bearings 13, and the guide gears 7 mesh with the vertical first rack 9 on the downstream side of the frame 17. The bearings 13 and the frame 17 form a transmission through the first rack 9 and the guide gears 7. The bearings 13 and the guide gears 7 fixedly nested on their surfaces are directly fixedly connected to the full-rotation circular gate 1 and extend between the frames 17. This allows the force at both ends of the full-rotation circular gate 1 to be transmitted to the frame 17 through the guide gears 7, ensuring that the force at both ends of the full-rotation circular gate 1 is balanced when it rises and falls, and avoiding tilting deformation and operation jamming of the full-rotation circular gate 1 due to uneven force. The guide gears 7 are fixedly sleeved on the surface of the bearings 13, allowing the guide gears 7 and the bearings 13 to rotate synchronously, avoiding transmission loss caused by relative sliding between the guide gears 7 and the bearings 13, ensuring power transmission efficiency, and ensuring timely response of the full-rotation circular gate 1 in rising and falling actions.

[0038] like Figure 1 As shown, the system is symmetrically arranged on both sides of the river. The vertical gear drive 8 meshes with the second rack 18 on the frame 17 through the built-in gear 22, and the guide gear 7 meshes with the first rack 9 on the frame 17. The two form a continuous transmission cooperation, so that both ends of the full-turn circular gate 1 can obtain transmission power at the same time, preventing the full-turn circular gate 1 from getting stuck when rising and falling due to single-sided transmission, and improving the operational effectiveness and stability of the full-turn circular gate 1. The bearing 13 and the frame 17 are connected to the guide gear 7 through the first rack 9. This can construct a clear mechanical path, so that the braking and driving of the vertical gear drive 8 can be transmitted to the full-turn circular gate 1 through this continuous transmission structure, realizing the raising and lowering operation of the full-turn circular gate 1.

[0039] like Figure 7 As shown, the vertical gear drive 8 has several built-in gears 22 on its inner wall. These built-in gears 22 mesh with the second rack 18 on the frame 17. The vertical gear drive 8 has a transmission cavity 21. The bearing 13 extends horizontally and is embedded in the transmission cavity 21, allowing it to rotate freely. The vertical gear drive 8 drives the built-in gears 22, which are in a semi-enclosed or fully enclosed state, to mesh with the second rack 18. When stopped, it achieves self-locking. When driven, it provides power and guidance for the full-rotation circular gate 1 to move up and down along the frame 17, ensuring that all drive and gate movement are simultaneous and stable, avoiding operational failures caused by deviation, and guaranteeing continuous and stable operation over long strokes. Simultaneously, the transmission cavity 21 within the vertical gear drive 8, with the bearing 13 embedded and able to rotate freely, makes connection, rotation, and transmission more direct. It also limits the relative displacement of the bearing 13, preventing bearing wobbling from affecting transmission accuracy and maintaining the relative position stability between the bearing 13 and the vertical gear drive 8. Furthermore, it provides a protective enclosure for the bearing 13, reducing the corrosion of the bearing 13 by impurities.

[0040] like Figure 2and such Figure 3 As shown, the inner wall of the vertical gear drive 8 is provided with an internal gear 22 that meshes with the second rack 18. This internal gear 22 can convert the meshing movement of the vertical gear drive 8 along the second rack 18 into vertical up-and-down movement, thereby driving the bearing 13 and the guide gear 7 to rotate. This achieves effective mechanical transmission of power from the vertical gear drive 8 to the guide gear 7, providing a clear transmission direction for the rotation and lifting of the bearing 13 and the full-rotation circular gate 1. The entire transmission structure, through the continuous cooperation of the vertical gear drive 8, the internal gear 22, the transmission cavity 21, the second rack 18, the guide gear 7, the first rack 9, the bearing 13, and the full-rotation circular gate 1, constructs a coherent power transmission path. This ensures that the drive of the vertical gear drive 8 is accurately converted into the vertical up-and-down movement of the full-rotation circular gate 1, ensuring that the full-rotation circular gate 1 can switch between closing the gate to block floods, opening the gate to discharge floods, and allowing navigation, thus meeting the system's operational requirements.

[0041] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the fully rotating circular gate 1 has end caps 11 at both ends, with side doors 16 on the end caps 11. A pedestrian passage 15 is opened inside the fully rotating circular gate 1. The end caps 11 have hydraulically operated upward-opening doors 12. The outer plate 2 of the circular gate has pressure relief holes 20. Connecting beams 6 are provided between the frames 17, and piers 19 are provided at the bottom. The end caps 11 at both ends of the fully rotating circular gate 1 form a seal, preventing water from seeping in through gaps at both ends of the gate during flood control and tide control, ensuring watertightness. They also provide a foundation for the side doors 16. The side doors 16 on the end caps 11 and several support plates 5 inside the fully rotating circular gate 1 create passageways 14, forming an internal pedestrian passageway 15. After the side doors 16 are hydraulically opened, personnel can pass through the pedestrian passageway 15 to cross the river, realizing land transportation functionality and meeting the operational needs of sluice gate management personnel and the needs of the public, thus expanding the system's functionality.

[0042] Ribs 4 and support plates 5 are located inside the gate and arranged radially. The two ends of ribs 4 and support plates 5 are fixedly connected to the outer plate 2 and clamping plate 3 of the circular gate, respectively, forming the support frame of the fully rotating circular gate 1. The ribs 4 and support plates 5 are interlocked, forming a multi-node support structure inside the fully rotating circular gate 1. This distributes the high water pressure load borne by the gate to multiple support points, preventing localized load concentration that could lead to gate deformation and ensuring the overall stability of the fully rotating circular gate 1 under high-head flood and tide control conditions.

[0043] The two ends of the rib plate 4 and the support plate 5 are fixedly connected to the outer plate 2 of the circular gate and several clamping plates 3, respectively, so that the support frame and the inner and outer plates of the gate form an integral force-bearing system. The load can be quickly transferred to both ends of the full-rotation circular gate 1 through the support frame, and then transferred to the frame 17 through the bearing 13, so as to realize the orderly transmission of load and avoid local structural overload. The entire support frame provides a stable structural foundation for the full-rotation circular gate 1, ensuring that the gate can maintain structural stability under various working conditions such as lifting and lowering, flood control and tide blocking, and personnel passage. At the same time, the radial distribution structure of the support frame can reasonably allocate the amount of material, control the overall weight of the gate while ensuring rigidity, and reduce the load on the drive system. The outer plate 2 of the circular gate is provided with a pressure relief hole 20. When the gate sinks into the water, the pressure relief hole 20 is opened by hydraulic means. Water flows through the pressure relief hole 20 into the outer cavity of the gate, balancing the water pressure inside and outside the gate body, alleviating the anti-buoyancy problem when the gate sinks into the water, and ensuring that the gate can sink to the river bottom in a timely and smooth manner, effectively realizing flood control and tide blocking operation.

[0044] like Figure 1 , Figure 2 As shown, the support pier 19 is fixed to the bottom of the river channel and connected to the bottom of the frame 17. It serves as the structural backing for the fully rotating circular gate 1 after it is submerged, ensuring the stability of the gate structure and providing longitudinal support. The connecting beam 6 connects to the frame 17 at both ends and is set along the length of the river channel. The connection beam 6 connects to the frame 17 at both ends, forming an integral structure with the two sides of the frame 17. This enhances the overall structural rigidity and lateral resistance of the frame 17, preventing tilting or displacement of the frame 17 due to gate operating loads, and ensuring the stability of the frame 17.

[0045] The above description is merely an embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A gear-driven vertically driven full-rotation circular gate flood and tide blocking system, comprising a full-rotation circular gate (1), a vertical gear driver (8), a bearing (13), a guide gear (7), a first rack (9), a second rack (18), and a frame (17), characterized in that: The frame (17) is symmetrically arranged in the opening and closing towers on both sides of the river. The fully rotating circular gate (1) is a multi-layer cylindrical structure with an outer circular gate plate (2) on the outside and multiple sets of clamping plates (3) on the inside. The outer circular gate plate (2) and the clamping plates (3) are connected by radially arranged ribs (4) and support plates (5). Multiple pressure relief holes (20) are opened on the surface of the outer circular gate plate (2). Bearings (13) are extended outward at the axis at both ends of the fully rotating circular gate (1). The bearings (13) pass through the surface of the frame (17) and are nested with guide gears (7). The bearings (13) extend horizontally and are embedded in the transmission cavity (21) inside the vertical gear drive (8) and can rotate freely. The frame (17) is vertically provided with a first rack (9) on the downstream side facade, and a guide rail (10) is vertically provided on the upstream side facade. Multiple sets of second racks (18) are vertically fixed around the outer facade of the frame (17). The guide gear (7) meshes with the first rack (9) and is in contact with the guide rail (10). The vertical gear driver (8) is mounted on the outer facade of the frame (17) in a hoop-like shape, in a fully enclosed or semi-enclosed state, and meshes with the second racks (18) on the outer facade of the frame (17) through a gear (22) built into the inner wall. The connecting beam (6) is arranged between the frames (17), and the support pier (19) is arranged at the bottom of the frame (17) at the riverbed.

2. The gear-driven vertically driven full-rotation circular gate flood and tide blocking system according to claim 1, characterized in that: The bearing (13) extends to the frame (17) section. The guide gear (7) is nested and fixed on the surface of the bearing (13). The guide gear (7) meshes with the first rack (9) on the downstream side of the frame (17) and is in contact with the guide rail (10) on the upstream side. The bearing (13) drives the full-rotation circular gate (1) to rotate fully through the meshing of the first rack (9) and the guide gear (7), thereby achieving vertical displacement.

3. The gear-driven vertically driven full-rotation circular gate flood and tide blocking system according to claim 2, characterized in that: The vertical gear drive (8) has multiple sets of built-in gears (22) arranged at different angles on its inner wall. The built-in gears (22) mesh with the second rack (18) on the frame (17). The vertical gear drive (8) has a transmission cavity (21). The bearing (13) extends horizontally and is embedded in the transmission cavity (21) and can rotate freely. The built-in gears (22) stop and lock themselves by meshing with the second rack (18) through the vertical gear drive (8), or drive the built-in gears (22) to mesh along the surface of the second rack (18) to form vertical up-and-down displacement, which drives the bearing (13) and the guide gear (7) to rotate synchronously. Under the drive of the vertical gear drive (8), the bearing (13) drives the fully rotating circular gate (1) to rotate synchronously to form vertical up-and-down displacement.

4. The gear-driven vertically driven full-rotation circular gate flood and tide blocking system according to claim 1, characterized in that: Both ends of the full-revolving circular gate (1) are provided with end caps (11), and the end caps (11) are provided with side doors (16). The full-revolving circular gate (1) has a passage door (14) opened inside through the support plate (5) to form an internal pedestrian passage (15). After the passage is fully opened, a passage connecting the left and right banks is formed.

5. A gear-driven vertically driven full-rotation circular gate flood and tide blocking system according to claim 4, characterized in that: The end plate (11) is a circular plate structure and serves as the closed side plate at both ends of the fully rotating circular gate (1); the side gate (16) is opened and closed by a hydraulically operated upward-opening gate (12).

6. A gear-driven vertically driven full-rotation circular gate flood and tide blocking system according to claim 4, characterized in that: The passage gate (14) is opened on the facade of several support plates (5) along the axial direction of the full-turn circular gate (1), forming the internal pedestrian passage (15) and extending to the side gate (16), thus forming a through passage between the left and right banks.

7. A gear-driven vertically driven full-rotation circular gate flood and tide blocking system according to claim 1, characterized in that: Multiple sets of pressure relief holes (20) are provided on the surface of the outer plate (2) of the circular gate. The pressure relief holes (20) are opened or closed by hydraulic opening and closing to realize water intake of the outer cavity of the fully rotating circular gate (1).

8. A gear-driven vertically driven full-rotation circular gate flood and tide blocking system according to claim 7, characterized in that: The fully rotating circular gate (1) is provided with multiple sets of ribs (4) and support plates (5) along the axial direction. The support plates (5) and ribs (4) are arranged radially inside the fully rotating circular gate (1). The ribs (4) are arranged radially between the outer plate (2) of the circular gate and the clamping plate (3). The support plates (5) are arranged radially inside the clamping plate (3) in a vertical state. The two ends of the ribs (4) and support plates (5) are fixedly connected to the outer plate (2) of the circular gate and the clamping plate (3) respectively, forming the supporting frame of the fully rotating circular gate (1).

9. A gear-driven vertically driven full-rotation circular gate flood and tide blocking system according to claim 1, characterized in that: The support (19) is fixed to the bottom of the river channel, and the support (19) is fixedly connected to the bottom of the frame (17).

10. A gear-driven vertically driven full-rotation circular gate flood and tide blocking system according to claim 1, characterized in that: The two ends of the connecting beam (6) are respectively connected to the frame (17), and the connecting beam (6) is set along the bank direction.

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