Suspender maintenance device of tied-arch bridge

Abstract

The utility model belongs to the technical field of suspender maintenance, and particularly relates to a suspender maintenance device of a tied-arch bridge, which comprises a mounting bracket and two winches, one of the winches is fixedly connected to the upper side of a tied-arch body, and the other winch is fixedly connected to the lower side of an arch rib. The installation support is slidably connected to the outer side of the suspender rod body in the axis direction of the suspender rod body, the two winches are connected with the installation support through connecting ropes, a friction cleaning mechanism and a maintenance liquid spraying mechanism are assembled on the installation support, and the friction cleaning mechanism comprises a cleaning block fixedly connected to the upper side of the installation support. The inner walls of the cleaning blocks abut against the outer wall of the suspender rod body, the cleaning blocks are of arc-shaped structures, the two cleaning blocks can be spliced into a circular ring structure, a mounting groove is formed in the upper side of the mounting support, and two mounting frames are clamped in the mounting groove. The suspender body maintenance device can simply and effectively complete maintenance of the suspender body.

Description

Technical Field

[0001] This utility model belongs to the field of suspension rod maintenance technology, specifically relating to a suspension rod maintenance device for a tied arch bridge. Background Technology

[0002] In modern bridge engineering, tied arch bridges, with their unique structural form and aesthetic value, are widely used in the construction of important infrastructure such as urban transportation and cross-river bridges. As a key load-bearing component of tied arch bridges, the suspenders directly bear the task of transferring the bridge deck load to the arch ribs, and their working condition directly affects the overall safety and stability of the bridge.

[0003] Over time, and due to the repeated effects of various natural factors and traffic loads, issues related to the maintenance of hanger rods have arisen:

[0004] 1. Internal corrosion problem of the suspension rod

[0005] Difficult to detect directly: Corrosion may exist inside concrete-filled steel pipe hangers, especially when the hangers are encased in concrete, making it impossible to directly observe their internal condition. Corrosion is often not immediately noticeable, but over time it can severely impact the load-bearing capacity of the hangers.

[0006] Limitations of detection technology: Existing detection methods, such as ultrasonic testing and radar scanning, are not always effective for in-depth inspection of steel-concrete composite structures and cannot completely and accurately detect the degree of corrosion or cracks in the hangers.

[0007] 2. Difficulty in repairing structural damage to the suspension rod

[0008] Repair is not easy: Once cracks or corrosion are found in the suspension rod, repair can be very complex, especially for deeply buried or hard-to-reach sections. It may require removing the protective layer or using specific repair materials, which can present technical and time challenges in practice.

[0009] Material matching issues: During the repair process, the materials used need to be highly compatible with the performance of the original structure to ensure that the repaired hangers retain the original strength and durability. However, due to the wide variety of repair materials available on the market, selecting the appropriate material often requires accumulated experience.

[0010] 3. Preventive measures for rod corrosion

[0011] Corrosion Protection Challenges: Corrosion protection of steel-concrete composite hangers typically requires advanced technology, especially for bridges exposed to harsh environments for extended periods. Even with regular anti-corrosion treatments, corrosion is still difficult to completely prevent in certain areas, particularly in locations with high humidity or significant salt spray exposure.

[0012] Regarding question 3, the boom needs to be cleaned and maintained regularly, but due to the long length of the boom, the cleaning and maintenance of the boom is quite difficult. Utility Model Content

[0013] The purpose of this invention is to provide a maintenance device for the suspenders of a tied arch bridge, which can simply and effectively complete the maintenance of the suspender rods.

[0014] The specific technical solution adopted by this utility model is as follows:

[0015] A maintenance device for the suspenders of a tied-arch bridge includes a mounting bracket and two winches. One winch is fixedly connected to the upper side of the tie rod, and the other winch is fixedly connected to the lower side of the arch rib. The mounting bracket is slidably connected to the outer side of the tie rod along the axis of the tie rod. Both winches are connected to the mounting bracket via connecting ropes. The mounting bracket is equipped with a friction cleaning mechanism and a maintenance liquid spraying mechanism.

[0016] Furthermore, the friction cleaning mechanism includes a cleaning block fixedly connected to the upper side of the mounting bracket. The inner wall of the cleaning block abuts against the outer wall of the hanging rod. The cleaning block has an arc-shaped structure. There are two cleaning blocks, which can be assembled into a circular ring structure. The upper side of the mounting bracket is provided with a mounting groove. Two mounting brackets are engaged inside the mounting groove. The two cleaning blocks are fixedly connected to the two mounting brackets respectively. A magnet is fixedly connected inside the mounting groove. The mounting brackets are made of iron.

[0017] Furthermore, the maintenance liquid spraying mechanism includes a liquid storage tank fixedly connected to the lower side of the mounting bracket, and a liquid outlet nozzle fixedly connected to the lower side of the liquid storage tank. The liquid storage tank and the liquid outlet nozzle are connected by a valve.

[0018] The technical effects achieved by this utility model are as follows:

[0019] This utility model discloses a maintenance device for the suspenders of a tied arch bridge. By starting the winch and moving the mounting bracket, the suspender body can be maintained through the moving friction cleaning mechanism and the maintenance liquid spraying mechanism. The friction cleaning mechanism can clean the surface of the suspender body by friction, and the maintenance liquid spraying mechanism can spray the surface of the suspender body with maintenance liquid, thereby completing the maintenance of the suspender body simply and effectively. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention when the outer side of the hanger rod is installed;

[0021] Figure 2 This is a schematic diagram of the structure of this utility model;

[0022] Figure 3 This is a partial enlarged view of the friction cleaning mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the liquid outlet nozzle of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Tie rod body; 2. Arch rib; 3. Hanger rod body; 4. Winch; 5. Connecting rope; 6. Mounting bracket; 7. Liquid storage tank; 8. Liquid outlet nozzle; 9. Connecting bracket; 10. Guide wheel; 11. Mounting frame; 12. Cleaning block; 13. Valve; 14. Mounting groove; 15. Magnet. Detailed Implementation

[0026] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0027] like Figures 1-4 As shown, a maintenance device for the hangers of a tied arch bridge includes a mounting bracket 6 and two winches 4. One winch 4 is fixedly connected to the upper side of the tie rod 1, and the other winch 4 is fixedly connected to the lower side of the arch rib 2. The mounting bracket 6 is slidably connected to the outside of the hanger rod 3 along the axial direction of the hanger rod 3. Both winches 4 are connected to the mounting bracket 6 through connecting ropes 5. Starting the winch 4 can drive the mounting bracket 6 to slide on the outside of the longer hanger rod 3 through the connecting ropes 5. The mounting bracket 6 is equipped with a friction cleaning mechanism and a maintenance liquid spraying mechanism.

[0028] In this technical solution, during the construction of the tied arch bridge, a hanger maintenance device is installed on the outside of each hanger rod 3. When the hanger rod 3 is regularly maintained, the winch 4 is started to move the mounting bracket 6. After the mounting bracket 6 has moved, the hanger rod 3 can be maintained by the moving friction cleaning mechanism and the maintenance liquid spraying mechanism. The friction cleaning mechanism can clean the surface of the hanger rod 3 by friction, and the maintenance liquid spraying mechanism can spray maintenance liquid onto the surface of the hanger rod 3, thus completing the maintenance of the hanger rod 3 simply and effectively.

[0029] Among them, such as Figures 1-3As shown, the friction cleaning mechanism includes a cleaning block 12 fixedly connected to the upper side of the mounting bracket 6. The inner wall of the cleaning block 12 abuts against the outer wall of the boom 3. When the cleaning block 12 moves outside the boom 3, it can perform friction cleaning on the boom 3. The cleaning block 12 has an arc-shaped structure, and there are two cleaning blocks 12. The two cleaning blocks 12 can be combined into a circular structure. The material of the cleaning block 12 is a cleaning sponge. By dividing the friction cleaning mechanism into two cleaning blocks 12, the cleaning blocks 12 can be disassembled from the mounting bracket 6 to complete the replacement of the mounting bracket 6.

[0030] To facilitate the replacement of the cleaning block 12, the upper side of the mounting bracket 6 is provided with a mounting groove 14. Two mounting brackets 11 are snapped into the inside of the mounting groove 14, and the two cleaning blocks 12 are fixedly connected to the two mounting brackets 11 respectively. By limiting the fixing method of the cleaning block 12 to snap-fit, the installation of the cleaning block 12 can be completed relatively easily. In addition, a magnet 15 is fixedly connected inside the mounting groove 14. The mounting bracket 11 is made of iron. By attracting the mounting bracket 11 with the magnet 15, the installation stability of the mounting bracket 11 and the cleaning block 12 can be improved.

[0031] The maintenance fluid spraying mechanism includes a storage tank 7 fixedly connected to the lower side of the mounting bracket 6. A water inlet pipe is installed on the storage tank 7. The inside of the storage tank 7 is filled with maintenance fluid, which can be a self-cleaning coating liquid, an anti-aging protective liquid, a rust inhibitor, or a liquid protective wax. A liquid outlet nozzle 8 is fixedly connected to the lower side of the storage tank 7. The storage tank 7 and the liquid outlet nozzle 8 are connected by a valve 13. By opening the valve 13, the maintenance fluid inside the storage tank 7 can enter the liquid outlet nozzle 8. The liquid outlet nozzle 8 is an annular tube sleeved on the outside of the boom 3. Several liquid outlet holes are opened on the side wall of the annular tube facing the boom 3, so that the maintenance fluid flowing out under gravity can flow to the surface of the boom 3.

[0032] Meanwhile, two sets of connecting brackets 9 are fixedly connected to the outside of the mounting bracket 6. Each set of connecting brackets 9 consists of four brackets, and guide wheels 10 are installed at the ends of the two sets of connecting brackets 9 that are far apart from each other. The four guide wheels 10 of the same set are arranged in a ring array on the outside of the boom body 3, so that the mounting bracket 6 can be assisted in positioning by the guide wheels 10.

[0033] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A boom maintenance device for a tied-arch bridge, characterized by: Including installation support (6) and two winches (4), one of said winches (4) is fixedly connected on the upper side of the tie rod body (1), the other said winches (4) is fixedly connected on the lower side of the arch rib (2), the installation support (6) is slidably connected on the outer side of the derrick rod body (3) along the axis direction of the derrick rod body (3), two said winches (4) are connected through connecting ropes (5) and installation support (6), the installation support (6) is equipped with friction cleaning mechanism and maintenance liquid spraying mechanism.

2. A hanger rod maintenance device for a tied-arch bridge according to claim 1, characterized in that: The friction cleaning mechanism includes cleaning blocks (12) fixedly connected on the upper side of the installation support (6), the inner wall of the cleaning block (12) is in abutment with the outer wall of the derrick rod body (3), and the cleaning block (12) is an arc structure, the number of the cleaning block (12) is two, and two cleaning blocks (12) can be spliced into a circular ring structure.

3. A hanger rod maintenance device for a tied-arch bridge according to claim 2, characterized in that: The upper side of the installation support (6) is provided with a mounting groove (14), two mounting frames (11) are clamped in the mounting groove (14), and two cleaning blocks (12) are fixedly connected on the two mounting frames (11) respectively.

4. A hanger rod maintenance device for a tied-arch bridge according to claim 3, characterized in that: The inside of the mounting groove (14) is fixedly connected with a magnet (15), and the material of the mounting frame (11) is iron.

5. The suspender maintenance device of a tied-arch bridge according to claim 1, wherein: The maintenance liquid spraying mechanism includes a liquid tank (7) fixedly connected on the lower side of the installation support (6), a liquid outlet nozzle (8) fixedly connected on the lower side of the liquid tank (7), and the liquid tank (7) and the liquid outlet nozzle (8) are communicated through a valve (13).

6. A suspender maintenance device for a tied-arch bridge as defined in claim 1, wherein: The outer side of the installation support (6) is fixedly connected with two groups of connecting supports (9), one end of the connecting support (9) is provided with a guide wheel (10), and four guide wheels (10) in the same group are arranged in a ring array on the outer side of the derrick rod body (3).

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