Safety tie rod device for protecting the structure of a floating concrete block

Abstract

This utility model discloses a safety tie rod device for protecting the concrete support structure of a drift barrier system. It mainly includes a steering tie rod, a safety tie rod, and a traction wire rope connected in sequence. The safety tie rod has a structure that is larger at both ends and smaller in the middle. The two ends are respectively a lifting lug plate and a lifting lug reinforcing plate, with a safety rod in the middle. The end of the safety rod is welded to the lifting lug plate, and the lifting lug plate and the lifting lug reinforcing plate form a continuous weld at the connection point. Due to the structure of being larger at both ends and smaller in the middle, the safety rod is the weakest link in this device. When the tensile force on the safety tie rod device reaches the breaking force, this weakest link breaks first, the safety rod breaks, and the load transmission path is interrupted, effectively protecting the concrete support and the drift barrier system, improving the safety and stability of the drift barrier system, and reducing long-term operation and maintenance costs.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic metal structure technology, and in particular relates to a safety tie rod device for protecting the concrete support structure of the drift barrier. Background Technology

[0002] With the growth in electricity demand, the construction of hydropower stations has developed rapidly. The normal operation of hydropower stations requires clean water to enter the turbines to ensure power generation efficiency and equipment safety. Flood barriers intercept floating debris before the intake of a hydropower station, protecting its safe operation. Concrete abutment structures play a crucial supporting role in the flood barrier system. The tension generated by the flood barriers due to water flow forces, wind loads, and wave pressure is ultimately transmitted to the concrete abutment structures. Excessive tension may cause cracks, tilting, or even damage to the concrete abutment structures, affecting the safety and service life of the flood barrier system. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a safety tie rod device that is simple in structure, easy to use, and effective in protecting the concrete support structure of the drift barrier, so as to effectively ensure the safety of the concrete support structure of the drift barrier.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] The safety tie rod device for protecting the concrete support structure of the drift barrier mainly includes a steering tie rod, a safety tie rod, and a traction wire rope connected in sequence. The safety tie rod has a structure that is large at both ends and small in the middle. The two ends are respectively a lifting lug plate and a lifting lug reinforcing plate, and the middle is a safety rod. The end of the safety rod is welded to the lifting lug plate, and the lifting lug plate and the lifting lug reinforcing plate form a continuous weld at the connection point.

[0006] The load-bearing capacity of the safety bar is less than that of the concrete support.

[0007] One end of the steering tie rod is connected to one end of the safety tie rod via connecting shaft II, and the other end of the safety tie rod is connected to one end of the traction wire rope via connecting shaft III.

[0008] The aforementioned safety lever device also includes a moving trolley, which is connected to the other end of the steering lever via a connecting shaft I.

[0009] The load-bearing capacity of the safety bar is less than that of the steering tie rod, traction wire rope, moving trolley, and each connecting shaft.

[0010] To address the issue of potential damage to the concrete supports of current drift barriers under overload conditions, the inventors designed a safety tie rod device to protect the concrete support structure. This device primarily comprises a steering tie rod, a safety tie rod, and a traction steel wire rope connected in sequence. The safety tie rod has a structure that is wider at both ends and narrower in the middle. The two ends are respectively a lifting lug plate and a lifting lug reinforcement plate, with the safety rod in the middle. The end of the safety rod is welded to the lifting lug plate, and the lifting lug plate and the lifting lug reinforcement plate form a continuous weld at the connection point. Due to the structure of being wider at both ends and narrower in the middle, the safety rod is the weakest link in this device. When the tensile force on the safety tie rod device reaches the breaking force, this weakest link breaks first, causing the safety rod to disconnect and interrupting the load transfer path. This effectively protects the concrete supports and the drift barrier system, improving the safety and stability of the drift barrier system and reducing long-term operation and maintenance costs. Attached Figure Description

[0011] Figure 1 This is a schematic diagram showing the usage and structure of the safety tie rod device for protecting the concrete support structure of the drift barrier of this utility model.

[0012] Figure 2 This is a structural schematic diagram of the connection part at the end of the concrete support in the safety tie rod device of this utility model.

[0013] Figure 3 This is a schematic diagram of the safety lever in the safety lever device of this utility model. In the figure: a is a front view and b is a cross-sectional view along AA.

[0014] Figure 4 This is a schematic diagram of the safety rod structure in the safety rod device of this utility model. In the figure: a is a front view and b is a cross-sectional view along AA.

[0015] Figure 5 This is a schematic diagram of the structure of the drift arrestor end connection part in the safety tie rod device of this utility model.

[0016] Figure 6 This is a structural schematic diagram of the safety pull rod device of this utility model. In the figure: a is a front view and b is a top view.

[0017] In the diagram: 1-Mobile trolley; 2-Concrete support; 3-Safety tie rod; 4-Traction wire rope; 5-Flood barrier; 6-Safety bar; 7-Lifting lug plate; 8-Lifting lug reinforcing plate; 9-Connecting shaft I; 10-Steering tie rod; 11-Connecting shaft II; 12-Connecting shaft III. Detailed Implementation

[0018] I. Basic Structure

[0019] like Figures 1 to 6As shown, the safety tie rod device for protecting the concrete support structure of the drift barrier of this utility model mainly includes a steering tie rod 10, a safety tie rod 3, a traction steel wire rope 4, and a moving trolley 1 connected in sequence; one end of the steering tie rod is connected to one end of the safety tie rod through connecting shaft II 11, the other end of the safety tie rod is connected to one end of the traction steel wire rope through connecting shaft III 12, and the moving trolley is connected to the other end of the steering tie rod through connecting shaft I 9. Among these,

[0020] The safety lever has a structure that is large at both ends and small in the middle. The two ends are a lifting lug plate and a lifting lug reinforcing plate, respectively, and the middle is the safety lever 6. The end of the safety lever is welded to the lifting lug plate 7, and the lifting lug plate and the lifting lug reinforcing plate 8 form a continuous weld at the connection point.

[0021] II. Design and Manufacturing

[0022] Based on the design requirements of the drift barrier and the hydrogeological data of the water area, a detailed stress analysis was conducted on the concrete support piers to determine the design load.

[0023] Determine the design load and selected material of the safety tie rod, determine the upper and lower yield limits of the selected material, calculate the diameter range of the safety tie rod, determine the location and shape of the weakest link of the safety tie rod, ensure that the breaking force of the safety tie rod is consistent with its design load, take the same base material of the safety tie rod as the test workpiece, and determine the diameter of the weakest section in the middle of the safety tie rod based on the test values.

[0024] Design the specific dimensions and structure of other connecting components to ensure that the load-bearing capacity of the weakest link in the safety tie rod is less than the load-bearing capacity of other connecting components while meeting the design load.

[0025] The safety tie rod is manufactured according to the design drawings and standard processes. During manufacturing, the diameter of the safety rod and the machining accuracy of weak points are precisely controlled to ensure the accuracy of the breaking force. The connecting components undergo quality inspection to ensure their strength meets design requirements.

[0026] III. Installation and Use

[0027] like Figure 1 , Figure 2 and Figure 6 As shown, the mobile trolley is placed inside the concrete support from top to bottom, ensuring that the mobile trolley is firmly installed inside the concrete support. The rollers on the mobile trolley make good contact with the track embedded in the concrete support 2 and can move smoothly. The steering tie rod is connected to the mobile trolley through connecting shaft I. One end of the safety tie rod is connected to the steering tie rod through connecting shaft II, and the other end is securely connected to the traction steel wire rope through connecting shaft III. The traction steel wire rope is connected to the drift barrier 5.

[0028] IV. Load Transfer Link

[0029] The load on the drift barrier is transferred to the safety tie rod via a traction steel cable. The safety tie rod then transfers the load to the steering tie rod via a connecting shaft. The steering tie rod further transfers the load to the moving trolley via a connection to the moving trolley, and finally, the moving trolley transfers the load to the concrete support pier of the drift barrier via embedded rails. The concrete support pier is connected to the drift barrier through this system of connections. The load-bearing capacity of the safety tie rod is less than that of the concrete support pier, provided it meets the design load. The safety tie rod automatically disconnects when subjected to breaking force, cutting off the load transfer path, effectively protecting the concrete support pier and the drift barrier system, improving the safety and stability of the drift barrier system, and reducing long-term operation and maintenance costs.

[0030] V. Replacement procedure after safety lever breaks

[0031] First, disconnect the broken safety lever from the traction cable, secure the traction cable, then disconnect the steering lever from the safety lever, and mark the relative positions and directions of each component.

[0032] Next, inspect the new safety lever, place it in the appropriate position, align the connection point of the steering lever with the new safety lever, insert connecting shaft II, and install and tighten the fasteners on the connecting shaft. Use lifting equipment to lift the traction wire rope and move it to the corresponding connection point of the new safety lever, aligning it with the connecting shaft hole of the safety lever, insert connecting shaft III, and install the fasteners on the connecting shaft.

[0033] Next, inspect the connections, and adjust and tighten them promptly if any problems are found. Inspect the entire drift barrier connection structure to ensure its integrity and stability. After ensuring that the connections are secure and the overall structure is normal, perform functional testing on the drift barrier equipment, and observe whether the newly installed safety rods function properly. If any abnormalities are found, stop the machine immediately to troubleshoot and resolve the problem, ensuring that the drift barrier system operates normally and meets its design requirements.

[0034] In summary, this utility model has the following outstanding advantages:

[0035] 1. In this utility model, the load-bearing capacity of the safety tie rod is less than that of the concrete support under the premise of meeting the design load, thus providing precise protection for the concrete support and avoiding damage to the concrete support caused by excessive strength of the connecting components of the drift control system.

[0036] 2. When the safety tie rod is subjected to breaking force, the automatic disconnection mechanism can prevent the tie rod from being continuously stressed and causing serious damage to the support and drift control system. It plays an overload protection role for the concrete support, improves the stability and reliability of the concrete support, and enhances the overall safety of the drift control system under extreme working conditions.

[0037] 3. The reasonable safety tie rod design and automatic disconnection function reduce the need for frequent repairs or replacements of steering tie rods and concrete supports due to unreasonable design or extreme damage, thereby reducing long-term operation and maintenance costs.

[0038] 4. In practical applications, the actual load displayed by the monitoring device on the safety rod can be compared with the breaking force to facilitate the timely detection of potential safety hazards and the implementation of corresponding maintenance measures.

Claims

1. A safety tie device for protecting a fender block concrete pier structure, characterized by It mainly includes a steering tie rod, a safety tie rod, and a traction wire rope connected in sequence; the safety tie rod has a structure that is large at both ends and small in the middle, with a lug plate and a lug reinforcement plate at each end, and a safety rod in the middle. The end of the safety rod is welded to the lug plate, and the lug plate and the lug reinforcement plate form a continuous weld at the connection point.

2. The security puller device according to claim 1, wherein: The load-bearing capacity of the safety bar is less than that of the concrete support.

3. The security puller device according to claim 2, wherein: One end of the steering tie rod is connected to one end of the safety tie rod via connecting shaft II, and the other end of the safety tie rod is connected to one end of the traction wire rope via connecting shaft III.

4. The security puller device according to claim 3, wherein It also includes a mobile trolley, which is connected to the other end of the steering tie rod via a connecting shaft I.

5. The security puller device according to claim 4, wherein: The load-bearing capacity of the safety bar is less than that of the steering tie rod, traction steel wire rope, moving trolley and each connecting shaft.

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