Water conservancy construction cofferdam reinforcing structure

Abstract

The utility model relates to the technical field of water conservancy construction, in particular to a water conservancy construction cofferdam reinforcing structure which comprises a first supporting frame and a second supporting frame which are connected through a telescopic connecting mechanism, a driving device, a threaded rod, a guide rod and a sliding assembly are arranged in the first supporting frame and the second supporting frame, and an angle-adjustable reinforcing mechanism is arranged on the sliding assembly. The telescopic connecting mechanism is composed of multiple sets of cross connecting arms and is matched with a ground anchor to enhance stability. The reinforcing mechanism is automatically unfolded through an adjusting rod and an auxiliary rod, and the impact resistance is improved through a high-strength steel cable and a torsional spring. The stability of the cofferdam structure can be improved through automatic expansion and contraction, the impact resistance is enhanced, and the construction safety and reliability are ensured.

Description

Technical Field

[0001] This utility model belongs to the field of water conservancy engineering and construction technology, specifically a reinforced structure for cofferdams in water conservancy construction. Background Technology

[0002] In the construction of water conservancy projects, cofferdams, as temporary water-retaining structures, are widely used in the construction of rivers, reservoirs, and other water conservancy projects to isolate the construction area from the water flow, ensuring a dry and safe construction environment. However, existing cofferdam structures still have many shortcomings in practical applications. On the one hand, traditional cofferdams often use single materials or simple structural forms. When faced with complex hydrological conditions (such as high flow velocity, high water pressure, or uneven foundations), their overall stability and scour resistance often fail to meet requirements, easily leading to deformation, leakage, or even collapse. On the other hand, the design of existing cofferdam reinforcement structures is usually relatively simple, lacking targeted reinforcement measures, and cannot effectively cope with the stress requirements under different working conditions, resulting in reduced construction efficiency and increased safety hazards. In addition, the installation and dismantling of some cofferdam reinforcement structures are complex, not only consuming a lot of time and manpower but also potentially causing secondary damage to the surrounding environment. Therefore, how to design a cofferdam reinforcement structure that is structurally reasonable, highly stable, and easy to construct has become a pressing technical problem to be solved in the field of water conservancy construction. Based on this background, this utility model aims to provide a reinforced structure that can significantly improve the bearing capacity and impact resistance of cofferdams, so as to meet the construction needs under complex hydrological conditions. Utility Model Content

[0003] This utility model relates to the field of water conservancy construction technology, and more specifically, to a reinforcement structure for water conservancy construction cofferdams. Currently, existing water conservancy construction cofferdams often suffer from insufficient reinforcement and poor impact resistance during use, which can lead to deformation or even collapse under the impact of water flow, thus affecting construction safety and efficiency. To solve these problems, this utility model provides a reinforcement structure for water conservancy construction cofferdams, including a first support frame and a second support frame. A telescopic connection mechanism is provided between the first and second support frames. When the driving device on the first support frame is running forward, the telescopic connection mechanism unfolds, moving the second support frame away from the first support frame while simultaneously pushing its sliding components to move, achieving the synchronous unfolding of the reinforcement mechanisms on the first and second support frames. A driving device is fixedly connected inside the first support frame. A threaded rod is provided between the driving device and the first support frame. One end of the threaded rod is rotatably connected to the first support frame, and the other end of the threaded rod is fixedly connected to the output end of the driving device. A fixed bracket is fixedly connected inside the second support frame. A guide rod is fixedly connected to the fixed bracket and the second support frame. Sliding components are sleeved on the outside of both the guide rod and the threaded rod. One sliding component is slidably connected to the guide rod, and the other sliding component is threadedly connected to the threaded rod. A reinforcing mechanism is provided on the top of the sliding component. The reinforcing mechanism as a whole can be adjusted vertically. In conjunction with the lateral expansion between the first and second support frames, the entire cofferdam structure is made more stable, which helps to improve the impact resistance and enhances the safety and reliability of use.

[0004] The telescopic connection mechanism includes a first connecting arm, which is rotatably connected to a first support frame. A second connecting arm is rotatably connected to the top of the first connecting arm. The second connecting arm is rotatably connected to a sliding component. The first and second connecting arms are of the same specification and are arranged in a cross configuration. There are a total of three sets of first and second connecting arms, which are rotatably connected end to end. In the set closest to the second support frame, the first connecting arm is rotatably connected to the sliding component on the guide rod, while the second connecting arm is directly rotatably connected to the second support frame.

[0005] The first and second support frames are both provided with mounting holes inside. Each of the first and second support frames has two mounting holes. The mounting holes are used to insert ground anchors to fix the whole structure and enhance its stability.

[0006] The reinforcement mechanism includes a first reinforcement plate, which is rotatably connected to a sliding assembly. An adjusting rod is provided between the first reinforcement plate and a first support frame. Under the action of the adjusting rod, when the threaded rod drives the sliding assembly to move, the first reinforcement plate on the sliding assembly will be pushed and pulled by the adjusting rod, thereby causing the first reinforcement plate to automatically rotate upward or downward. One end of the adjusting rod is rotatably connected to the first support frame, and the other end of the adjusting rod is rotatably connected to the first reinforcement plate. A first side plate is rotatably connected to one side of the first reinforcement plate, and a second side plate is rotatably connected to the other side of the first reinforcement plate. A second reinforcement plate is rotatably connected between the first side plate and the second side plate. Racks are fixedly connected to the outside of both the second reinforcement plate and the first reinforcement plate, and the two racks are mutually... The first side plate and the sliding assembly are connected by an auxiliary rod. One end of the auxiliary rod is rotatably connected to the first side plate, and the other end is rotatably connected to the sliding assembly. The four positions of the auxiliary rod (one end to the first side plate, the other end to the sliding assembly, the first side plate to the first reinforcing plate, and the first reinforcing plate to the sliding assembly) form a parallelogram, ensuring that the auxiliary rod and the first reinforcing plate are always parallel to each other. When the first reinforcing plate rotates, the auxiliary rod pushes and pulls the first side plate. With the cooperation of two meshing racks, the first side plate drives the second reinforcing plate to rotate around the first reinforcing plate until the second reinforcing plate and the first reinforcing plate are in the same straight line or parallel to each other.

[0007] Both the first and second reinforcing plates have internal storage cavities. A rotating shaft is rotatably connected inside each storage cavity. A roll is sleeved on the outside of the rotating shaft. Multiple rolls are arranged on the rotating shaft at equal intervals. The rolls are fixedly connected to the rotating shaft. A high-strength steel cable is wound around the outside of each roll and is fixedly connected to the roll. A torsion spring is sleeved on the outside of the rotating shaft and between the storage cavity and the roll. One end of the torsion spring is fixedly connected to the rotating shaft, and the other end is fixedly connected to the storage cavity. The torsion spring is mainly used to drive the rotating shaft to rotate automatically, and the rotating shaft then drives the roll to rotate to wind up the high-strength steel cable.

[0008] The storage cavity is detachably connected to a protective cover. The protective cover has a through hole inside, which is used in conjunction with a high-strength steel cable. The first and second reinforcing plates are fixed to the protective cover by bolts. The protective cover can seal the storage cavity on the first and second reinforcing plates to prevent mud or debris from entering the storage cavity. The high-strength steel cable extends directly to the outside through the through hole on the protective cover.

[0009] The first and second support frames are both fixedly connected to guide rails. The sliding component has a sliding groove on the side near the guide rail. The sliding groove works in conjunction with the guide rail to limit the sliding component, making the sliding component move more smoothly.

[0010] The second support frame has a rolling groove inside, and a roller is rotatably connected inside the rolling groove. There are two rolling grooves in total, and the two rolling grooves are symmetrically distributed. When the drive device is started, the drive device will drive the sliding component to move through the threaded rod. The sliding component will drive the second support frame to move through the telescopic connection mechanism, so that the second support frame moves away from or closer to the first support frame, realizing the automatic expansion and contraction of the whole.

[0011] The first support frame is externally fixed with a control button. The drive device is electrically connected to the control button. The electrical equipment is powered by an external power source, such as a battery, and the start, stop, forward and reverse rotation of the drive device are controlled by the control button. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a top view of the present invention;

[0014] Figure 3 This is a cross-sectional view of the present invention.

[0015] The reference numerals in the attached drawings are as follows: 1. First support frame; 2. Second support frame; 3. Telescopic connection mechanism; 4. Drive device; 5. Threaded rod; 6. Fixed bracket; 7. Guide rod; 8. Sliding assembly; 9. Reinforcing mechanism; 10. First connecting arm; 11. Second connecting arm; 12. Mounting hole; 13. First reinforcing plate; 14. Adjusting rod; 15. First side plate; 16. Second side plate; 17. Second reinforcing plate; 18. Rack; 19. Auxiliary rod; 20. Storage cavity; 21. Rotating shaft; 22. Drum; 23. High-strength steel cable; 24. Torsion spring; 25. Protective cover; 26. Through hole. Detailed Implementation

[0016] This utility model relates to a reinforced structure for cofferdams in hydraulic construction, the overall structure of which is as follows: Figure 1As shown, the structure includes a first support frame 1 and a second support frame 2, which are connected by a telescopic connection mechanism 3 and can expand and contract. A drive device 4 is fixedly installed inside the first support frame 1. The drive device 4 is rotatably connected to the first support frame 1 via a threaded rod 5. One end of the threaded rod 5 is fixedly connected to the output end of the drive device 4, and the other end is rotatably connected to the inner wall of the first support frame 1. A fixed bracket 6 is fixedly installed inside the second support frame 2. A guide rod 7 is fixedly connected to the fixed bracket 6. Sliding components 8 are fitted onto the outside of both the guide rod 7 and the threaded rod 5. One sliding component 8 is slidably connected to the guide rod 7, and the other sliding component 8 is threadedly connected to the threaded rod 5. A reinforcing mechanism 9 is provided on the top of the sliding component 8. This reinforcing mechanism 9 can be deployed synchronously when the first support frame 1 and the second support frame 2 expand or contract, thereby enhancing the impact resistance and stability of the entire cofferdam structure.

[0017] The specific structure of the telescopic connection mechanism 3 is as follows: Figure 2 As shown, it consists of three sets of cross-arranged first connecting arms 10 and second connecting arms 11. Each set of first connecting arms 10 and second connecting arms 11 has the same specifications and is arranged in a cross pattern. One end of the first connecting arm 10 is rotatably connected to the first support frame 1, and the other end is rotatably connected to the second connecting arm 11. The other end of the second connecting arm 11 is rotatably connected to the sliding assembly 8. The set of first connecting arms 10 closest to the second support frame 2 is rotatably connected to the sliding assembly 8 on the guide rod 7, and its corresponding second connecting arm 11 is directly rotatably connected to the second support frame 2. When the drive device 4 is activated, the threaded rod 5 drives the sliding assembly 8 to move along the guide rod 7. Through the linkage of the first connecting arms 10 and the second connecting arms 11, the sliding assembly 8 pushes the second support frame 2 away from or closer to the first support frame 1, thereby realizing the overall expansion and contraction of the cofferdam structure.

[0018] The specific structure of reinforcement mechanism 9 is as follows: Figure 3As shown, it mainly includes a first reinforcing plate 13, an adjusting rod 14, a first side plate 15, a second side plate 16, a second reinforcing plate 17, and a rack 18. The first reinforcing plate 13 is rotatably connected to the sliding assembly 8. One end of the adjusting rod 14 is rotatably connected to the first support frame 1, and the other end is rotatably connected to the first reinforcing plate 13. During the movement of the sliding assembly 8, the adjusting rod 14 applies a pushing and pulling action to the first reinforcing plate 13, thereby causing the first reinforcing plate 13 to rotate up and down around the rotation point between itself and the sliding assembly 8. One side of the first reinforcing plate 13 is rotatably connected to the first side plate 15, and the other side is rotatably connected to the second side plate 16. The first side plate 15 and the second side plate 16 are rotatably connected to each other through the second reinforcing plate 17. Racks 18 are fixedly connected to the outside of both the first reinforcing plate 13 and the second reinforcing plate 17. The two racks 18 mesh with each other to ensure that the angle change between the first reinforcing plate 13 and the second reinforcing plate 17 remains consistent. In addition, an auxiliary rod 19 is provided between the first side plate 15 and the sliding assembly 8. One end of the auxiliary rod 19 is rotatably connected to the first side plate 15, and the other end is rotatably connected to the sliding assembly 8. The auxiliary rod 19 and the first reinforcing plate 13 are always in a parallel state. When the first reinforcing plate 13 rotates, the auxiliary rod 19 will push and pull the first side plate 15. At the same time, with the cooperation of the rack 18, the first side plate 15 will drive the second reinforcing plate 17 to rotate around the first reinforcing plate 13 until the second reinforcing plate 17 and the first reinforcing plate 13 are in the same straight line or parallel to each other.

[0019] Both the first reinforcing plate 13 and the second reinforcing plate 17 have internal storage cavities 20, as shown in the figure. A rotating shaft 21 is rotatably connected inside the storage cavity 20. Multiple equidistantly distributed drums 22 are sleeved on the outside of the rotating shaft 21, and a high-strength steel cable 23 is wound around the outside of each drum 22. A torsion spring 24 is also sleeved on the outside of the rotating shaft 21, with one end fixedly connected to the rotating shaft 21 and the other end fixedly connected to the storage cavity 20. When the high-strength steel cable 23 is pulled out, the torsion spring 24 stores elastic potential energy; when the tension disappears, the torsion spring 24 releases the elastic potential energy, causing the rotating shaft 21 to rotate automatically, thereby winding the high-strength steel cable 23 back onto the drum 22. To protect the structure inside the storage cavity 20, a protective cover 25 is detachably connected to the outside of the first reinforcing plate 13 and the second reinforcing plate 17. The protective cover 25 has a through hole 26 inside, through which a high-strength steel cable 23 extends to the outside. The protective cover 25 is fixedly connected to the first reinforcing plate 13 and the second reinforcing plate 17 by bolts, effectively preventing mud or debris from entering the storage cavity 20.

[0020] Both the first support frame 1 and the second support frame 2 are fixedly connected to guide rails. A sliding groove is formed inside the sliding component 8 near the guide rail. The sliding groove works in conjunction with the guide rail to limit the movement of the sliding component 8, ensuring smoother movement. The second support frame 2 has two symmetrically distributed rolling grooves inside, with rollers rotatably connected within each groove. The roller design reduces frictional resistance during the expansion or contraction of the second support frame 2, further improving overall smoothness of operation.

[0021] A control button 31 is fixedly connected to the outside of the first support frame 1. The control button 31 is electrically connected to the drive device 4 and is used to control the start, stop, and forward / reverse rotation of the drive device 4. The drive device 4 is powered by an external power source, such as a battery. The user can start the drive device 4 by pressing the control button 31. The drive device 4 drives the threaded rod 5 to rotate, and the threaded rod 5 pushes the sliding assembly 8 to move along the guide rod 7. The sliding assembly 8 drives the second support frame 2 to move through the telescopic connection mechanism 3. At the same time, the reinforcement mechanism 9 on the sliding assembly 8 unfolds synchronously, ultimately realizing the expansion and reinforcement of the cofferdam structure.

[0022] In practical applications, this reinforced cofferdam structure can be widely used in cofferdam construction scenarios for water conservancy projects such as rivers and lakes. Construction personnel first insert the first support frame 1 and the second support frame 2 into the ground anchors through the mounting holes 12 for initial fixation. Then, they activate the drive device 4 via the control button 31. The drive device 4 drives the threaded rod 5 to rotate, which in turn pushes the sliding assembly 8 to move along the guide rod 7. The sliding assembly 8, through the telescopic connection mechanism 3, moves the second support frame 2 away from the first support frame 1, completing the expansion of the cofferdam structure. Simultaneously, the reinforcement mechanism 9 on the sliding assembly 8 unfolds, and the first reinforcement plate 13 rotates up and down under the action of the adjusting rod 14. The first side plate 15 and the second side plate 16, with the cooperation of the auxiliary rod 19 and the rack 18, drive the second reinforcement plate 17 to unfold. The high-strength steel cable 23 is pulled out from the storage cavity 20 and fixedly connected to the surrounding environment, thus forming a stable cofferdam structure. After construction is completed, construction personnel can reverse the drive device 4 via the control button 31 to retract the cofferdam structure to its initial state, facilitating transportation and reuse.

[0023] In summary, this utility model, through reasonable structural design and functional configuration, realizes the automated expansion and reinforcement of cofferdam structures, significantly improving the impact resistance and stability of cofferdams, and providing a safer and more reliable solution for water conservancy construction.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reinforced structure for a cofferdam in hydraulic construction, comprising a first support frame (1) and a second support frame (2), characterized in that: A telescopic connection mechanism (3) is provided between the first support frame (1) and the second support frame (2). A drive device (4) is fixedly connected inside the first support frame (1). A threaded rod (5) is provided between the drive device (4) and the first support frame (1). One end of the threaded rod (5) is rotatably connected to the first support frame (1), and the other end of the threaded rod (5) is fixedly connected to the output end of the drive device (4). A fixed bracket (6) is fixedly connected inside the second support frame (2). A guide rod (7) is fixedly connected between the fixed bracket (6) and the second support frame (2). A sliding component (8) is sleeved on the outside of both the guide rod (7) and the threaded rod (5). One of the sliding components (8) is slidably connected to the guide rod (7), and the other sliding component (8) is threadedly connected to the threaded rod (5). A reinforcing mechanism (9) is provided on the top of the sliding component (8).

2. The reinforced structure for a cofferdam in hydraulic construction according to claim 1, characterized in that: The telescopic connecting mechanism (3) includes a first connecting arm (10), which is rotatably connected to the first support frame (1). A second connecting arm (11) is rotatably connected to the top of the first connecting arm (10). The second connecting arm (11) is rotatably connected to the sliding component (8). The first connecting arm (10) and the second connecting arm (11) are of the same specifications and are arranged in a cross pattern. A total of three sets of the first connecting arm (10) and the second connecting arm (11) are provided, which are rotatably connected end to end.

3. The reinforced structure for a cofferdam in hydraulic construction according to claim 1, characterized in that: The first support frame (1) and the second support frame (2) are both provided with mounting holes (12), and each mounting hole (12) has two holes.

4. The reinforced structure for a cofferdam in hydraulic construction according to claim 1, characterized in that: The reinforcement mechanism (9) includes a first reinforcement plate (13), which is rotatably connected to a sliding assembly (8). An adjusting rod (14) is provided between the first reinforcement plate (13) and the first support frame (1). One end of the adjusting rod (14) is rotatably connected to the first support frame (1), and the other end of the adjusting rod (14) is rotatably connected to the first reinforcement plate (13). A first side plate (15) is rotatably connected to one side of the first reinforcement plate (13), and the other side of the first reinforcement plate (13) is rotatably connected to... There is a second side plate (16), and a second reinforcing plate (17) is rotatably connected between the first side plate (15) and the second side plate (16). Both the second reinforcing plate (17) and the first reinforcing plate (13) are fixedly connected to the outside of racks (18), and the two racks (18) mesh with each other. An auxiliary rod (19) is provided between the first side plate (15) and the sliding assembly (8). One end of the auxiliary rod (19) is rotatably connected to the first side plate (15), and the other end of the auxiliary rod (19) is rotatably connected to the sliding assembly (8).

5. A reinforced structure for a cofferdam in hydraulic construction according to claim 4, characterized in that: The first reinforcing plate (13) and the second reinforcing plate (17) are both provided with a storage cavity (20). A rotating shaft (21) is rotatably connected inside the storage cavity (20). A roller (22) is sleeved on the outside of the rotating shaft (21). The roller (22) is fixedly connected to the rotating shaft (21). A high-strength steel cable (23) is wound on the outside of the roller (22). The high-strength steel cable (23) is fixedly connected to the roller (22). A torsion spring (24) is sleeved on the outside of the rotating shaft (21) and between the storage cavity (20) and the roller (22). One end of the torsion spring (24) is fixedly connected to the rotating shaft (21), and the other end of the torsion spring (24) is fixedly connected to the storage cavity (20).

6. A reinforced structure for a cofferdam in hydraulic construction according to claim 5, characterized in that: The storage cavity (20) is detachably connected to a protective cover (25), and the protective cover (25) has a through hole (26) inside, which is used in conjunction with a high-strength steel cable (23).

7. A reinforced structure for a cofferdam in hydraulic construction according to claim 1, characterized in that: The first support frame (1) and the second support frame (2) are both fixedly connected to guide rails. The sliding component (8) has a sliding groove on the side near the guide rail. The sliding groove is used in conjunction with the guide rail. The second support frame (2) has a rolling groove inside. The rolling groove is rotatably connected to a roller. There are two rolling grooves in total, and they are symmetrically distributed.

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