Anti-corrosion structure of main cable of suspension bridge

Abstract

This invention relates to the field of corrosion and rust prevention technology for load-bearing steel cables, specifically a suspension bridge main cable anti-corrosion structure. A storage tank is mounted on the main cable, a liquid supply pipe is also mounted on the main cable, a hanging mechanism is installed on the main cable, the storage tank is mounted on the hanging mechanism, a liquid supply mechanism is installed on the hanging mechanism, and a drive mechanism is installed on the liquid supply mechanism. By adding a storage and supply mechanism for anti-corrosion coating to the main cable, the stored anti-corrosion coating can be directly pumped out to coat the surface of the main cable during periodic anti-corrosion maintenance.

Description

Technical Field

[0001] This invention relates to the field of corrosion and rust prevention technology for load-bearing steel cables, specifically to corrosion prevention structures for main cables of suspension bridges. Background Technology

[0002] Suspension bridges are constructed by suspending the bridge deck using main cables strung between two ends, which serve as the load-bearing structure. The main cables are the primary load-bearing structure, giving suspension bridges their advantage of long spans. Therefore, protecting the main cables is of paramount importance. The main threats to suspension bridge main cables are oxidation, corrosion, and rust caused by natural elements. Corrosion and rust prevention treatment typically involves a combination of physical and chemical methods. Physical methods primarily involve coating the outer surface of the main cables with anti-corrosion paint, which isolates the cable structure from external substances to prevent erosion. However, after prolonged exposure, the anti-corrosion paint on the main cables can erode, fail, and peel off. Therefore, it is necessary to periodically repaint the outer surface of the main cables. Consequently, a corresponding structure needs to be designed to complement the physical corrosion prevention measures for the main cables. Summary of the Invention

[0003] The purpose of this invention is to address the deficiencies and shortcomings of the prior art by providing a corrosion protection structure for the main cable of a suspension bridge. This structure adds a storage and supply mechanism for anti-corrosion coating to the main cable, thereby enabling the stored anti-corrosion coating to be directly pumped out and applied to the surface of the main cable during regular anti-corrosion maintenance.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions:

[0005] It includes a main cable, a storage tank, and a supply pipe, with the storage tank mounted on the main cable and the supply pipe also mounted on the main cable. It also includes:

[0006] The mounting mechanism is mounted on the main cable, and the storage tank is mounted on the mounting mechanism.

[0007] A liquid supply mechanism, wherein the liquid supply mechanism is mounted on the bracket mechanism;

[0008] A drive mechanism is mounted on the liquid supply mechanism.

[0009] Preferably, the hanging bracket mechanism comprises:

[0010] A fixing sleeve, wherein the fixing sleeve is fitted onto the main cable;

[0011] The frame is fixedly mounted on the outer ring wall of the fixed sleeve, and the storage tank is fixedly mounted on the frame;

[0012] A limiting sleeve is fitted onto the main cable and positioned to the side of the fixed sleeve. The end of the liquid supply pipe is fixedly mounted on the limiting sleeve.

[0013] Preferably, the liquid supply mechanism comprises:

[0014] A pressure piston is movably disposed inside the storage tank, and a pressure-balancing one-way valve is installed on the pressure piston.

[0015] The end of the liquid supply pipe away from the limiting sleeve is inserted and fixed to the bottom plate of the storage tank, and several capillary holes are equally spaced on the side wall of the liquid supply pipe.

[0016] The liquid filling pipe is fixedly mounted on the frame and passes through and is fixed to the side plate of the storage tank.

[0017] The exhaust pipe is fixedly mounted on the frame and passes through and is fixed to the side plate of the storage tank.

[0018] Preferably, the drive mechanism comprises:

[0019] A support rod is fixedly mounted on the pressure piston and movably passes through the top plate of the storage tank.

[0020] A connecting frame, wherein the connecting frame is fixedly mounted on the upper end of the support rod;

[0021] A transmission frame, which is mounted on the outside of the storage tank;

[0022] A pulley block mechanism is provided, which is mounted on a connecting frame, and the transmission frame is connected to the pulley block mechanism.

[0023] Preferably, the pulley block mechanism comprises:

[0024] A pulley frame, wherein the pulley frame is fixedly installed on the outer side wall of the storage tank;

[0025] A fixed pulley block, wherein the fixed pulley block is spun onto a pulley frame via bearings;

[0026] A movable pulley block, wherein the movable pulley block is spun onto the connecting frame via bearings;

[0027] One end of the cable is fixedly mounted on the connecting frame, and the other end of the cable passes through the fixed pulley group and the movable pulley group in sequence before being fixedly mounted on the transmission frame.

[0028] In use, by pulling down the transmission frame, the transmission frame pulls down the cable. After the cable passes through the fixed pulley group and is guided by the fixed pulley group, the cable pulls down the movable pulley group, which in turn pulls down the connecting frame. The connecting frame pushes down the support rod, which in turn pushes down the pressure piston. This allows the material in the storage tank to be pumped out through the liquid supply pipe via the pressure piston.

[0029] Preferably, the connecting frame is equipped with a guide wheel via a bearing, and the cable is mounted on the guide wheel after passing over the movable pulley block.

[0030] Preferably, a guide sleeve is fixedly installed on the transmission frame, and two guide sleeves are arranged in a group and in two groups, one in front and one behind. The pulley frame is clamped between the two guide sleeves in one group. A guide rod is fixedly installed on the connecting frame, and the guide rod is movably inserted into the upper port of the guide sleeve. A spring is sleeved on the support rod, the upper end of the spring is fixedly installed on the transmission frame, and the lower end of the spring is fixedly installed on the top plate of the storage tank.

[0031] Preferably, a pull ring is screwed onto the lower crossbar of the transmission frame via a rotating shaft.

[0032] Compared with the prior art, the beneficial effects of the present invention are:

[0033] 1. This device is equipped with a storage tank on the main cable structure that can store anti-corrosion coating, and a pressure piston is installed in the storage tank. A liquid supply pipe is connected to the storage tank, so that the coating stored in the storage tank can be pumped out by the pressure piston and sprayed onto the main cable through the liquid supply pipe, thereby achieving the coating of the main cable surface for rust prevention.

[0034] 2. This device connects the connecting frame to the pressure piston via a support rod and is equipped with a movable transmission frame. A movable pulley group is installed on the connecting frame, and a fixed pulley group is installed on the outer wall of the storage tank via a pulley frame. Then, a cable passes around the fixed pulley group and the movable pulley group and is connected to the transmission frame. That is, by pulling the transmission frame, the pressure piston is driven to press down. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of the present invention.

[0036] Figure 2 yes Figure 1 Left front side view.

[0037] Figure 3 This is a schematic diagram of the hanging mechanism and the driving mechanism in this invention.

[0038] Figure 4 yes Figure 3 The right front side view.

[0039] Figure 5This is a schematic diagram of the structure of the pulley frame, transmission frame, and fixed pulley block in this invention.

[0040] Figure 6 This is a schematic diagram of the structure of the pressure piston, connecting frame, and movable pulley group in this invention.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Main cable; 2. Storage tank; 3. Liquid supply pipe; 4. Hanging bracket mechanism; 4-1. Fixed sleeve; 4-2. Frame; 4-3. Limiting sleeve; 5. Liquid supply mechanism; 5. Pressure piston; 5-1. Liquid filling pipe; 5-2. Exhaust pipe; 5-3. Drive mechanism; 6. Support rod; 6-1. Connecting frame; 6-2. Transmission frame; 6-3. Pulley block mechanism; 7. Pulley frame; 7-1. Fixed pulley block; 7-2. Moving pulley block; 7-3. Cable; 7-4. Guide wheel; 8. Guide sleeve; 9. Guide rod; 10. Spring; 11. Pull ring; 12. Detailed Implementation

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Example 1:

[0045] like Figure 1-6 As shown, this embodiment includes a main cable 1, a storage tank 2, and a liquid supply pipe 3, wherein the storage tank 2 is mounted on the main cable 1, and the liquid supply pipe 3 is mounted on the main cable 1. It also includes:

[0046] Hanging mechanism 4, which is mounted on the main cable 1, includes:

[0047] Fixing sleeve 4-1, wherein the fixing sleeve 4-1 is sleeved on the main cable 1;

[0048] The frame 4-2 is fixedly mounted on the outer ring wall of the fixed sleeve 4-1, and the storage tank 2 is fixedly mounted on the frame 4-2.

[0049] Limiting sleeve 4-3 is sleeved on the main cable 1 and is located on the side of the fixed sleeve 4-1. The end of the liquid supply pipe 3 is fixedly installed on the limiting sleeve 4-3.

[0050] Liquid supply mechanism 5, which is mounted on bracket mechanism 4, includes:

[0051] Pressure piston 5-1, wherein the pressure piston 5-1 is movably disposed in the storage tank 2, and a pressure-balancing one-way valve is disposed on the pressure piston 5-1;

[0052] One end of the liquid supply pipe 3, away from the limiting sleeve 4-3, is inserted and fixed to the bottom plate of the storage tank 2, and several capillary holes are equally spaced on the side wall of the liquid supply pipe 3.

[0053] The liquid addition pipe 5-2 is fixedly mounted on the frame 4-2 and passes through and is fixed to the side plate of the storage tank 2;

[0054] The exhaust pipe 5-3 is fixedly installed on the frame 4-2 and passes through and is fixed to the side plate of the storage tank 2.

[0055] Both the filling pipe 5-2 and the vent pipe 5-3 are equipped with push-button check valves, and the inlet end of the vent pipe 5-3 is set higher than the inlet end of the filling pipe 5-2. Thus, when adding paint to the storage tank 2, a double-port filling gun is inserted into the filling pipe 5-2 and the vent pipe 5-3, so that the filling gun adds paint through the filling pipe 5-2 and the vent pipe 5-3 vents excess air from the storage tank 2. After the filling gun is pulled out, the push-button check valves seal the filling pipe 5-2 and the vent pipe 5-3.

[0056] Drive mechanism 6, which is disposed on liquid supply mechanism 5, includes:

[0057] Support rod 6-1 is fixedly mounted on pressure piston 5-1 and movably passes through the top plate of storage tank 2;

[0058] Connecting frame 6-2, which is fixedly installed at the upper end of support rod 6-1;

[0059] Transmission frame 6-3 is mounted on the outside of storage tank 2;

[0060] The pulley block mechanism 7 is mounted on the connecting frame 6-2, and the transmission frame 6-3 is connected to the pulley block mechanism 7.

[0061] The pulley block mechanism 7 includes:

[0062] Pulley frame 7-1, wherein the pulley frame 7-1 is fixedly installed on the outer side wall of storage tank 2;

[0063] Fixed pulley block 7-2, wherein the fixed pulley block 7-2 is screwed onto pulley frame 7-1 via bearings;

[0064] The movable pulley block 7-3 is screwed onto the connecting frame 6-2 via bearings;

[0065] The guide wheel 8 is spun onto the connecting frame 6-2 via a bearing, and the guide wheel 8 is located on the side of the movable pulley block 7-3;

[0066] One end of the cable 7-4 is fixedly mounted on the connecting frame 6-2, and the other end of the cable 7-4 passes through the fixed pulley block 7-2, the movable pulley block 7-3 and the guide wheel 8 in sequence before being fixedly mounted on the transmission frame 6-3;

[0067] Guide sleeve 9, the two of the aforementioned box sleeves are grouped together, and the front and rear groups are respectively fixedly installed at the front and rear ends of the transmission frame 6-3. The pulley frame 7-1 is movably clamped between the two guide sleeves 9 of one group;

[0068] Guide rod 10, the guide rod 10 is fixedly mounted on the connecting frame 6-2, and guide sleeve 9 is movably mounted on guide rod 10;

[0069] Spring 11, the escape sleeve is mounted on support rod 6-1, upper end of spring 11 is fixedly mounted on connecting frame 6-2, and lower end of spring 11 is fixedly mounted on top plate of storage tank 2.

[0070] Pull ring 12, the pull ring 12 is screwed onto the lower side wall of the transmission frame 6-3 via a rotating shaft.

[0071] By adopting the technical solution disclosed in this invention, the following can be achieved:

[0072] When using this device, the fixing sleeve 4-1 and the limiting sleeve 4-3 are both fitted onto the main cable 1, and then connected to the storage tank 2 and the fixing sleeve 4-1 through the frame 4-2, so that the storage tank 2 is suspended on the main cable 1, the liquid supply pipe 3 is connected to the storage tank 2, and the far end of the liquid supply pipe 3 is fixed on the limiting sleeve 4-3, so that the liquid supply pipe 3 is pulled taut and mounted on the upper side wall of the main cable 1 through the limiting sleeve 4-3.

[0073] The storage tank 2 stores liquid anti-corrosion coating, which is then pumped out and sent to the supply pipe 3. The coating is then pumped out from the capillary on the supply pipe 3 and applied to the surface of the main cable 1. The coating spreads and coats the surface of the main cable 1, thus achieving anti-corrosion protection for the main cable 1.

[0074] A pull ring 12 is constructed using an operating hook. Pulling the pull ring 12 downwards moves the transmission frame 6-3 downwards. The transmission frame 6-3 is guided by two sets of guide sleeves 9 on the outside of the storage tank 2 and by one set of two guide sleeves 9 on the outside of the pulley frame 7-1. The transmission frame 6-3 pulls the cable 7-4 downwards. The cable 7-4, guided by the movable pulley group 7-3 and the fixed pulley group 7-2, then pulls the pulley group 7-3 downwards, thus pulling the connecting frame 6-2 downwards through the movable pulley group 7-3. This pulley group mechanism 7 is a force-saving pulley structure, meaning the stroke of the transmission frame 6-3 is greater than the stroke of the connecting frame 6-2. The connecting frame 6-2 moves downward and, through the transmission of the support rod 6-1, pushes the pressure piston 5-1 downward. The pressure piston 5-1 then moves downward within the storage tank 2 and pumps the paint in the storage tank 2 into the supply pipe 3. After completing one downward stroke of the pressure piston 5-1, the pull ring 12 is released, and the connecting frame 6-2 is then lifted upward by the spring 11. That is, the connecting frame 6-2 drives the pressure piston 5-1 to move upward and reset through the support rod 6-1. Furthermore, the upward movement of the connecting frame 6-2 moves the movable pulley group 7-3 upward, thereby enabling the movable pulley group 7-3 to pull the cable 7-4, which in turn pulls the transmission frame 6-3 upward and resets it.

[0075] The technical advantages achieved by adopting the above technical solution are as follows:

[0076] 1. This device is equipped with a storage tank 2 on the main cable 1 structure, which can store anti-corrosion coating. A pressure piston 5-1 is installed in the storage tank 2, and a liquid supply pipe 3 is connected to the storage tank 2. The coating stored in the storage tank 2 is pumped out by the pressure piston 5-1, and the pumped coating is sprayed onto the main cable 1 through the liquid supply pipe 3, so as to achieve the coating of the main cable 1 for rust prevention.

[0077] 2. This device connects the connecting frame 6-2 to the pressure piston 5-1 via the support rod 6-1, and sets up a movable transmission frame 6-3. A movable pulley group 7-3 is set on the connecting frame 6-2, and a fixed pulley group 7-2 is set on the outer wall of the storage tank 2 via the pulley frame 7-1. Then, a cable 7-4 passes around the fixed pulley group 7-2 and the movable pulley group 7-3 and connects to the transmission frame 6-3. That is, by pulling the transmission frame 6-3, the pressure piston 5-1 is driven to press down.

[0078] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A corrosion-resistant structure for the main cable of a suspension bridge, comprising a main cable (1), a storage tank (2), and a liquid supply pipe (3), wherein the storage tank (2) is suspended on the main cable (1), and the liquid supply pipe (3) is erected on the main cable (1); characterized in that, It also includes: Hanging mechanism (4), the hanging mechanism (4) is mounted on the main cable (1), and the storage tank (2) is mounted on the hanging mechanism (4); Liquid supply mechanism (5), wherein the liquid supply mechanism (5) is mounted on the bracket mechanism (4); A drive mechanism (6) is provided on the liquid supply mechanism (5); The hanging mechanism (4) includes: A fixing sleeve (4-1) is fitted onto the main cable (1); The frame (4-2) is fixedly mounted on the outer ring wall of the fixed sleeve (4-1), and the storage tank (2) is fixedly mounted on the frame (4-2); The limiting sleeve (4-3) is sleeved on the main cable (1) and the limiting sleeve (4-3) is located on the side of the fixed sleeve (4-1). The end of the liquid supply pipe (3) is fixedly located on the limiting sleeve (4-3). The liquid supply mechanism (5) includes: Pressure piston (5-1), wherein the pressure piston (5-1) is movably disposed in the storage tank (2), and a pressure-balancing one-way valve is disposed on the pressure piston (5-1); The end of the liquid supply pipe (3) away from the limiting sleeve (4-3) is inserted and fixed on the bottom plate of the storage tank (2), and several capillary holes are equally spaced on the side wall of the liquid supply pipe (3). The liquid filling pipe (5-2) is fixedly installed on the frame (4-2) and the liquid filling pipe (5-2) passes through and is fixed to the side plate of the storage tank (2); The exhaust pipe (5-3) is fixedly mounted on the frame (4-2) and is inserted through and fixed to the side plate of the storage tank (2); The drive mechanism (6) includes: Support rod (6-1), the support rod (6-1) is fixedly mounted on the pressure piston (5-1), and the support rod (6-1) is movably inserted through the top plate of the storage tank (2); A connecting frame (6-2) is fixedly mounted on the upper end of the support rod (6-1); A transmission frame (6-3) is mounted on the outside of the storage tank (2); The pulley block mechanism (7) is mounted on the connecting frame (6-2), and the transmission frame (6-3) is connected to the pulley block mechanism (7).

2. The anti-corrosion structure for the main cable of a suspension bridge according to claim 1, characterized in that: The pulley block mechanism (7) includes: A pulley frame (7-1) is fixedly installed on the outer wall of the storage tank (2); A fixed pulley block (7-2) is screwed onto a pulley frame (7-1) via bearings; A movable pulley block (7-3) is mounted on a connecting frame (6-2) via bearings; The cable (7-4) is fixed at one end on the connecting frame (6-2), and the other end of the cable (7-4) passes through the fixed pulley block (7-2) and the movable pulley block (7-3) in sequence before being fixed on the transmission frame (6-3).

3. The anti-corrosion structure for the main cable of a suspension bridge according to claim 2, characterized in that: The connecting frame (6-2) is equipped with a guide wheel (8) via a bearing, and the cable (7-4) passes over the movable pulley group (7-3) and is mounted on the guide wheel (8).

4. The anti-corrosion structure for the main cable of a suspension bridge according to claim 3, characterized in that: The transmission frame (6-3) is fixedly provided with guide sleeves (9), and the two guide sleeves (9) are arranged in a group and are arranged in front and behind. The pulley frame (7-1) is sandwiched between the two guide sleeves (9) in one group. The connecting frame (6-2) is fixedly provided with guide rods (10), and the guide rods (10) are movably inserted into the upper port of the guide sleeves (9). The support rod (6-1) is fitted with a spring (11), the upper end of the spring (11) is fixedly provided on the transmission frame (6-3), and the lower end of the spring (11) is fixedly provided on the top plate of the storage tank (2).

5. The anti-corrosion structure for the main cable of a suspension bridge according to claim 4, characterized in that: A pull ring (12) is screwed onto the lower crossbar of the transmission frame (6-3) via a rotating shaft.

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