A dynamic balance lock dam device for sediment scouring and silting at an estuary

Abstract

The utility model discloses a kind of estuary silt scouring and silting dynamic balance lock dam device, it is related to lock dam technical field. Including lock dam dam body, the top of the lock dam dam body is fixedly arranged with wave baffle, the top of the wave baffle is fixedly arranged with multiple pulleys of uniform distribution;Silt discharge assembly is arranged on the lock dam dam body, for the silt scouring and silting of upstream, cooling assembly is arranged on the lock dam dam body, for balancing the internal and external temperature difference of lock dam dam body, eliminating thermal cracking, the lock dam dam body is also provided with barrier component, for the blocking of larger stone when silt scouring and silting. In the utility model, by the combination of cooling assembly and barrier component, not only effectively balance the heat inside lock dam dam body, eliminate thermal cracking risk to guarantee dam body structure complete and stable, lay a solid foundation for long-term operation of device, also can accurately block out silting mouth when silt discharge, prevent large stone blockage, ensure that silt discharge is smooth and device stable and efficient operation.

Description

Technical Field

[0001] This utility model belongs to the field of dam locking technology, and in particular relates to a dynamic balance dam locking device for sediment erosion and siltation at the estuary. Background Technology

[0002] The estuary sediment scouring and deposition dynamic balance locking dam device is a key hydraulic structure in water conservancy projects used to regulate the sediment scouring and deposition balance at the estuary and optimize the riverbed morphology. It achieves a dynamic balance between sediment transport and deposition by intercepting the flow of tributaries and concentrating the flow of the main channel.

[0003] Currently, existing estuary dynamic balancing dam devices typically only possess basic dam-locking and silt-draining functions. While they can regulate sediment erosion and sedimentation and maintain river course to some extent, they still have the following shortcomings: 1. It is impossible to effectively balance the heat inside the dam body to eliminate the risk of thermal cracking, which can easily damage the dam structure and affect the long-term stability of the equipment.

[0004] 2. During the sludge removal process, it is difficult to accurately block the sludge outlet, which cannot effectively prevent large stones from blocking the outlet, resulting in poor sludge removal and low equipment operating efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a dynamic balancing dam locking device for sediment erosion at the estuary. It not only effectively balances the internal heat of the dam body and eliminates the risk of thermal decomposition to ensure the integrity and stability of the dam structure, laying a solid foundation for the long-term operation of the device, but also precisely blocks the silt outlet during silt discharge to prevent large rocks from blocking it, ensuring smooth silt discharge and stable and efficient operation of the device, thus solving the existing technical problems.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: A dynamic siltation and sedimentation balancing dam device for estuaries includes: The lock dam body is made of reinforced concrete. Both ends of the lock dam body are embedded in the riverbank or river island at the entrance of the river channel or tributary. A wave shield is fixedly installed on the top of the lock dam body, and multiple evenly distributed pulleys are fixedly installed on the top of the wave shield. The dam body is equipped with a silt removal component, which is used to flush out the silt accumulated upstream. The dam body is also equipped with a cooling component, which is used to balance the temperature difference between the inside and outside of the dam body and eliminate thermal cracking. The dam body is also equipped with a baffle component, which is used to block larger rocks during silt flushing.

[0007] Optionally, the silt removal assembly includes silt outlets opened on one side of the lock dam body, with the same number of outlets as pulleys. The upstream side of the lock dam body has embedded grooves at multiple silt outlets, and each embedded groove has a slidable gate that can block the silt outlet. The top of the lock dam body is fixedly equipped with multiple evenly distributed support frames. A common rotating rod is rotatably installed through one side of each support frame. Multiple evenly distributed rope reels are fixedly installed on the outside of the rotating rod. Steel wire ropes are wound around the outside of each rope reel. One end of each steel wire rope passes around a pulley and is fixedly connected to the top of each of the multiple gates.

[0008] Optionally, the cooling assembly includes a cooling channel inside the lock dam body. The lock dam body is located downstream and has water inlets as many as the number of silt outlets behind it. The multiple water inlets are connected to the cooling channel. The lock dam body has grooves at the multiple water inlets. Each of the multiple grooves has a slidable gate that can block the water inlets. The top of the multiple gates and the rear of the multiple gates are fixedly provided with connecting frames I. The connecting frames I at the top of the gates and the connecting frames I at the rear of the gates are hinged together with the same linkage rod I.

[0009] Optionally, the barrier assembly includes two guide frames symmetrically fixed on both sides of the dam body at the upstream position. The same barrier grille is slidably installed inside the two guide frames. A connecting frame II is fixedly installed on the rear side of the barrier grille and the front side of the multiple blocking gates. The connecting frame II on the rear side of the barrier grille and the connecting frame II on the front side of the blocking gate are hinged to the same linkage rod II.

[0010] Optionally, an adapter is fixedly provided at one end of the rotating rod.

[0011] Optionally, a gear is fixedly installed on the outside of the rotating rod, and a bracket is hinged to the rear side of the wave deflector. The bottom of the bracket has a slot, which is adapted to the tooth groove of the gear and can be disengaged. An electric push rod is installed on the rear side of the wave deflector above the bracket, and the output end of the electric push rod is hinged to the top of the bracket.

[0012] Optionally, a U-shaped groove is provided on the front side of the wave-blocking frame.

[0013] Optionally, the foundation of the lock dam body is inclined on both sides.

[0014] The embodiments of this utility model have the following beneficial effects: In this invention, by setting up a cooling component, water that is free of silt or contains only a small amount of sediment downstream enters the cooling channel through the water inlet. Through water circulation, the heat inside the dam body is continuously removed, effectively balancing the temperature difference between the inside and outside of the dam body, successfully eliminating the risk of thermal cracking, ensuring the integrity and stability of the dam structure, and laying a solid foundation for the long-term stable operation of the entire device.

[0015] In this invention, by setting up a baffle component, when the blocking gate rises to open the sludge outlet, the baffle grille moves obliquely upward within the guide frame under the drive of the linkage rod II, precisely forming a baffle at the sludge outlet, effectively blocking larger stones from entering, preventing the sludge outlet from being blocked, ensuring a smooth and unobstructed sludge discharge process, and ensuring the stable operation of the device and the efficient implementation of sludge discharge work.

[0016] This invention combines cooling components and baffle components, which not only effectively balances the internal heat of the dam body and eliminates the risk of thermal decomposition to ensure the integrity and stability of the dam structure and lay a solid foundation for the long-term operation of the device, but also precisely baffles the silt outlet during silt removal to prevent large rocks from blocking it, ensuring smooth silt removal and stable and efficient operation of the device.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the main structure of the dam body near the upstream side according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the main structure of the dam body near the downstream side according to an embodiment of the present invention; Figure 3 This is a schematic cross-sectional view of the dam body according to an embodiment of the present invention; Figure 4 This is an enlarged structural diagram of part A of an embodiment of the present invention.

[0020] In the diagram: 1. Dam body; 2. Wave barrier; 3. Silt outlet; 4. Embedded groove; 5. Gate; 6. Steel wire rope; 7. Pulley; 8. Support frame; 9. Rotating rod; 10. Rope reel; 11. Cooling channel; 12. Water inlet; 13. Slide groove; 14. Sealing gate; 15. Connecting frame I; 16. Linkage rod I; 17. Guide frame; 18. Barrier grid; 19. Connecting frame II; 20. Linkage rod II; 21. Gear; 22. Clip; 23. Electric push rod; 24. Adapter. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0024] Example 1

[0025] Please see Figure 1-4 As shown, this embodiment provides a dynamic balancing dam device for sediment erosion and deposition at an estuary, comprising: The locking dam body 1 is made of reinforced concrete and has sufficient strength and stability. Its two ends are firmly embedded in the riverbank or river island at the entrance of the river channel or tributary to play a stable locking role. A wave shield 2 is fixedly installed on the top of the locking dam body 1. The wave shield 2 can block the direct impact of water waves on the components of the dam body to a certain extent. Multiple pulleys 7 are evenly distributed on the top of the wave shield 2. These pulleys 7 provide a smooth path for the movement of the steel wire rope 6 in the subsequent silt removal components.

[0026] The silt removal assembly includes silt outlets 3, the same number as pulleys 7, on one side of the dam body 1. These silt outlets 3 are evenly distributed to facilitate the smooth discharge of silt accumulated upstream. On the upstream side of the dam body 1, an embedding groove 4 is provided corresponding to each of the multiple silt outlets 3. A blocking gate 5 is slidably installed in the embedding groove 4 to seal the silt outlet 3. When silt removal is not required, the blocking gate 5 seals the silt outlet 3, preventing water and silt from passing through freely. When silt removal is required, the blocking gate 5 rises, opening the silt outlet 3. Multiple evenly distributed support frames 8 are fixedly installed on the top of the dam body 1. A single rotating rod 9 is rotatably mounted on the side. Multiple rope reels 10, the same number as the number of silt outlets 3 and evenly distributed, are fixedly mounted on the outside of the rotating rod 9. Steel wire ropes 6 are wound around the outside of each of the multiple rope reels 10. One end of each steel wire rope 6 passes around a pulley 7 and is fixedly connected to the top of each of the multiple blocking gates 5. When it is necessary to lift the blocking gate 5, it can be connected to an external drive device or component through an adapter 24 at one end of the rotating rod 9 (for example, it can be connected to a sleeve and then to a motor through an adapter 24). The motor drives the rotating rod 9 to rotate, and the rope reels 10 on the rotating rod 9 rotate accordingly, winding the steel wire ropes 6, thereby pulling the blocking gate 5 up.

[0027] The cooling system is used to balance the temperature difference between the inside and outside of the lock dam body 1 and eliminate the risk of thermal decomposition. Cooling channels 11 are provided inside the lock dam body 1. At the downstream end of the lock dam body 1, behind multiple silt outlets 3, there are water inlets 12, the same number as the number of silt outlets 3. These water inlets 12 are connected to the cooling channels 11. Water from the downstream area, free of silt or containing only a small amount of sediment, enters the cooling channels 11 through the water inlets 12. Through continuous water circulation, the heat generated inside the reinforced concrete lock dam body 1 is carried away, thereby balancing the temperature difference between the inside and outside of the lock dam body 1 and preventing thermal decomposition due to excessive temperature differences. This ensures the structural integrity and stability of the lock dam body 1. To prevent sediment from entering the cooling channels 1 during silt discharge... 1. The dam body 1 has sluices 13 at multiple water inlets 12. Each sluice 13 has a sealing gate 14 that can block the water inlets 12. The top of the sealing gate 14 and the rear of the sealing gate 5 are fixedly connected by a connecting frame I 15. The connecting frame I 15 at the top of the sealing gate 14 and the connecting frame I 15 at the rear of the sealing gate 5 are hinged to the same linkage rod I 16. When the sealing gate 5 rises to discharge silt, the linkage rod I 16 pulls the sealing gate 14 to move in the sluice 13 to block the water inlets 12 and prevent the discharged silt from entering the cooling channel 11. When the sealing gate 5 falls, the linkage rod I 16 pushes the sealing gate 14 to move in the sluice 13 to release the blockage of the water inlets 12, so that the cooling channel 11 can circulate water normally.

[0028] The baffle assembly is used to block larger stones during siltation and siltation, preventing them from entering the silt outlet 3 and causing blockage. Two guide frames 17 are symmetrically fixed on both sides of the upstream section of the dam body 1. The same baffle grille 18 is slidably installed inside the two guide frames 17. Connecting frames II 19 are fixedly installed on the rear side of the baffle grille 18 and the front side of the multiple blocking gates 5. The connecting frame II 19 on the rear side of the baffle grille 18 and the connecting frame II 19 on the front side of the blocking gate 5 are hinged to the same linkage rod II 20. When the blocking gate 5 rises to discharge silt, the linkage rod II 20 pulls the baffle grille 18 to move obliquely upward within the guide frame 17 to block the silt outlet 3, effectively preventing larger stones from entering the silt outlet 3. When the blocking gate 5 descends, the linkage rod II 20 pushes the baffle grille 18 to move obliquely downward within the guide frame 17 to reset.

[0029] A U-shaped channel is provided at the upstream front side of the wave deflector 2. Water flows in through the bottom of the U-shaped channel and then returns through the top of the U-shaped channel. The U-shaped channel can prevent water waves from impacting the components on the dam body 1 and protect the various components of the device from excessive erosion by water waves.

[0030] The foundation of the dam body 1 is inclined on both sides. The upstream inclination facilitates the discharge of sediment into the outlet 3 during siltation, while the downstream inclination facilitates the scouring of sediment during discharge, further improving the siltation effect.

[0031] Example 2

[0032] Improvements based on Example 1: See Appendix Figure 4 A gear 21 is fixedly mounted on the outside of the rotating rod 9. A bracket 22 is hinged to the rear side of the wave deflector 2. The bottom of the bracket 22 has a slot, which is compatible with the tooth groove of the gear 21 and can be disengaged. An electric push rod 23 is mounted on the rear side of the wave deflector 2 above the bracket 22. The output end of the electric push rod 23 is hinged to the top of the bracket 22. When the adapter 24 is connected to the external drive device or component, the electric push rod 23 is activated. The output end of the electric push rod 23 retracts, causing the bracket 22 to rise and disengage from the gear 21, thereby releasing the restriction on the position of the rotating rod 9. At this time, the rotating rod 9 can rotate under the action of the drive device. When no drive is needed, in order to prevent the rotating rod 9 from rotating arbitrarily during the non-drive process, the output end of the electric push rod 23 extends and pushes the bracket 22 down, so that the slot on the bracket 22 engages with the tooth groove of the gear 21, thereby restricting the rotation of the rotating rod 9.

[0033] The usage process and working principle of this utility model technical solution are as follows: The dam body 1 is embedded at both ends into the riverbank or river island at the entrance of a river distributary or tributary, forming a continuous barrier without a dam head. By regulating the water flow path and energy distribution (intercepting tributary flow, forcing it to concentrate in the main channel, increasing the flow rate and velocity; after interception, the upstream water level rises, forming a stagnant area, enhancing the scouring force and reducing sediment deposition in the main channel; the intercepted tributaries, due to stagnant flow, gradually deposit sediment, forming a still water deposition area, reducing the sediment load on the main channel), a dynamic balance of sediment scouring and deposition is achieved, stabilizing the river course and improving navigation conditions. In the initial state, the silt discharge component's gate 5 blocks the outflow. The silt outlet 3 and the sealing gate 14 of the cooling component are not sealed at the water inlet 12. The baffle 18 of the barrier component is in a low position. The water with no silt or only a little silt downstream is blocked by the lock dam body 1 and enters the cooling channel 11 from the water inlet 12. The heat inside the lock dam body 1, which is made of reinforced concrete, is continuously carried away by the water circulation (concrete itself is a heat source. The heat of cement hydration will cause the internal temperature to soar. The huge temperature difference between the inside and outside is enough to produce through cracks, causing the dam body to disintegrate from the inside). This balances the temperature difference between the inside and outside of the lock dam body 1 and eliminates thermal decomposition. When silt is not being discharged, the U-shaped channel at the upstream front of the wave deflector 2 can block the impact of water waves on the components of the lock dam body 1. The water flows in through the bottom of the U-shaped channel and then returns through the top of the U-shaped channel, effectively protecting the various components of the device and ensuring that the device can operate stably and continuously. When it is necessary to flush out the silt accumulated upstream, first connect the adapter 24 at one end of the rotating rod 9 to an external drive device or component (for example, connect the sleeve and motor through the adapter 24). After the connection is made, start the electric push rod 23. The output end of the electric push rod 23 drives the clamp 22 to rise. The clamp at the bottom of the clamp 22 disengages from the tooth groove of the gear 21, thereby releasing the restriction on the position of the rotating rod 9. Next, the external drive device is started to drive the rotating rod 9 to rotate. Multiple rope reels 10 fixed on the outside of the rotating rod 9 rotate accordingly. The steel wire rope 6 wound on the rope reel 10 is wound up and moves on the pulley 7. Under the action of the steel wire rope 6, the blocking gate 5 slides upward in the embedded groove 4, so that the sludge outlet 3 is opened. At the same time, as the blocking gate 5 rises, the linkage rod I 16 pulls the sealing gate 14 to move in the slide groove 13. The sealing gate 14 blocks the water inlet 12 to prevent the sludge and sand discharged from the sludge outlet from entering the cooling channel 11. In addition, the rise of the blocking gate 5 also pulls the baffle grid 18 to move obliquely upward in the guide frame 17 through the linkage rod II 20. The baffle grid 18 blocks the sludge outlet 3 to prevent large stones from entering the sludge outlet 3 and causing blockage. Under the action of water flow, the upstream silt is discharged from the open silt outlet 3. During the silt discharge process, the inclined design of the upstream foundation of the lock dam body 1 facilitates the smooth entry of silt into the silt outlet 3 for discharge. After the silt discharge work is completed, the external drive equipment is controlled to drive the rotating rod 9 to rotate in the opposite direction, the rope reel 10 releases the wire rope 6, and the blocking gate 5 slides down in the embedded groove 4 by the counterweight and its own weight, re-sealing the silt outlet 3. When the blocking gate 5 descends, the linkage rod I 16 pushes the sealing gate 14 to move in the sliding groove 13 to release the blockage of the water inlet 12. At the same time, the linkage rod II 20 pushes the barrier grid 18 to move obliquely down and reset in the guide frame 17. Moreover, the inclined design of the downstream foundation of the lock dam body 1 facilitates the flushing of silt on its own body during silt discharge.

[0034] It should be noted that in the description of this specification, descriptions such as "first" and "second" are only used to distinguish the features and do not have any actual order or directional meaning. This application is not limited to this.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

Claims

1. A dynamic balancing dam-locking device for sediment erosion and deposition at a estuary, characterized in that, include: The lock dam body (1) is made of reinforced concrete. The lock dam body (1) is embedded at both ends into the riverbank or river island at the entrance of the river channel or tributary. A wave shield (2) is fixedly installed on the top of the lock dam body (1). Multiple pulleys (7) are evenly distributed on the top of the wave shield (2). The dam body (1) is equipped with a silt removal component, which is used to flush out the silt accumulated upstream. The dam body (1) is also equipped with a cooling component, which is used to balance the temperature difference between the inside and outside of the dam body (1) and eliminate thermal decomposition. The dam body (1) is also equipped with a baffle component, which is used to block larger stones during silt flushing.

2. The estuary sediment erosion and deposition dynamic balance locking dam device as described in claim 1, characterized in that, The silt removal assembly includes silt outlets (3) opened on one side of the lock dam body (1) and the same number as pulleys (7). The lock dam body (1) on the upstream side is provided with embedded grooves (4) at multiple silt outlets (3). The interior of each of the multiple embedded grooves (4) is slidably provided with a blocking gate (5) that can block the silt outlets (3). Multiple support frames (8) are fixedly provided on the top of the lock dam body (1). The same rotating rod (9) is rotatably provided on one side of each of the multiple support frames (8). Multiple rope reels (10) are fixedly provided on the outside of the rotating rod (9). Steel wire ropes (6) are wound around the outside of each of the multiple rope reels (10). One end of each of the multiple steel wire ropes (6) passes around the pulleys (7) and is fixedly connected to the top of each of the multiple blocking gates (5).

3. The estuary sediment erosion and siltation dynamic balance locking dam device as described in claim 1, characterized in that, The cooling assembly includes a cooling channel (11) inside the lock dam body (1). The lock dam body (1) is located downstream and has water inlets (12) in the same number as the number of silt outlets (3) behind it. The water inlets (12) are connected to the cooling channel (11). The lock dam body (1) has grooves (13) at the water inlets (12). The grooves (13) are slidably provided with sealing gates (14) that can block the water inlets (12) inside the grooves (13). The top of the sealing gates (14) and the rear side of the blocking gates (5) are fixedly provided with connecting frames I (15). The connecting frames I (15) at the top of the sealing gates (14) and the connecting frames I (15) at the rear side of the blocking gates (5) are hinged together with the same linkage rod I (16).

4. The estuary sediment erosion and deposition dynamic balance locking dam device as described in claim 1, characterized in that, The barrier assembly includes two guide frames (17) symmetrically fixed on both sides of the upstream of the dam body (1). The same barrier grille (18) is slidably installed inside the two guide frames (17). A connecting frame II (19) is fixedly installed on the rear side of the barrier grille (18) and the front side of the multiple blocking gates (5). The connecting frame II (19) on the rear side of the barrier grille (18) and the connecting frame II (19) on the front side of the blocking gate (5) are hinged to the same linkage rod II (20).

5. The estuary sediment erosion and siltation dynamic balance locking dam device as described in claim 2, characterized in that, One end of the rotating rod (9) is fixedly provided with an adapter (24).

6. The estuary sediment erosion and siltation dynamic balance locking dam device as described in claim 5, characterized in that, A gear (21) is fixedly installed on the outside of the rotating rod (9). A card holder (22) is hinged to the rear side of the wave-blocking frame (2). A slot is opened at the bottom of the card holder (22). The slot of the card holder (22) is adapted to the tooth groove of the gear (21) and can be disengaged and engaged. An electric push rod (23) is installed on the rear side of the wave-blocking frame (2) above the card holder (22). The output end of the electric push rod (23) is hinged to the top of the card holder (22).

7. The estuary sediment erosion and siltation dynamic balance locking dam device as described in claim 1, characterized in that, The front side of the wave-blocking frame (2) is provided with a U-shaped groove.

8. The estuary sediment erosion and deposition dynamic balance locking dam device as described in claim 1, characterized in that, The foundation of the lock dam body (1) is inclined on both sides.

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