Rust-proofing operation platform for steel frame bridge

Abstract

The utility model discloses a steel truss bridge rust removal anticorrosion operation platform belongs to steel truss bridge construction technical field, including left, right two hanging baskets, two hanging baskets are respectively detachable installation in the both sides main girder of steel truss bridge bottom, and the steel jumping board is supported between two hanging baskets, hanging basket mainly comprises the ladder, upper sleeve pipe, upper hook pole, upper positioning nut, sliding sleeve, lower sleeve pipe, lower hook pole, lower positioning nut. The utility model design is scientific, and the structure is reasonable, and the simple production is convenient operation, and the operation platform is formed with the steel jumping board using the hanging basket erection, and the setting of hanging basket increases the connecting point of operation platform and steel truss bridge, avoids the overhanging operation, and greatly improves the operation security. The operation platform is formed with the steel jumping board using the hanging basket erection, can be repeatedly used, effectively improves the utilization, and reduces the material and construction cost. The operation platform is formed with the steel jumping board using the hanging basket erection, can realize sectional construction, thereby avoids the problem of influencing the ship traffic.

Description

Technical Field

[0001] This utility model belongs to the field of steel bridge construction technology, and specifically relates to the rust removal and anti-corrosion construction of steel bridges, specifically a rust removal and anti-corrosion operation platform for steel bridges. Background Technology

[0002] In coastal areas, seawater is highly corrosive, which places high demands on the corrosion protection of steel bridges. Steel bridges need to undergo anti-corrosion construction every once in a while.

[0003] The current practice for corrosion protection construction of steel bridges involves erecting traditional scaffolding for auxiliary construction. However, traditional scaffolding requires the installation of a long, cantilevered working platform, which is difficult to erect, has few connection points with the bridge, and results in low safety for both scaffolding erection and corrosion protection operations. Furthermore, this traditional construction method can also affect the passage of vessels. To address these issues...

[0004] Therefore, we urgently need to develop a new type of rust removal and corrosion prevention device for steel bridges to solve the aforementioned problems. Summary of the Invention

[0005] The purpose of this utility model is to solve the problems existing in the prior art and to provide a newly designed steel bridge rust removal and anti-corrosion operation platform.

[0006] This utility model is achieved through the following technical solution: A rust removal and corrosion prevention platform for steel frame bridges includes two hanging baskets, left and right, which are detachably installed on the main beams on both sides of the bottom of the steel frame bridge. A steel scaffolding supports the two baskets. Each hanging basket includes a ladder, with upper sleeves symmetrically fixed to both sides of the upper part of the ladder. Upper hook rods are slidably inserted into the upper sleeves, perpendicular to the plane of the ladder. Upper positioning nuts are threaded onto the upper hook rods, with the hooks and positioning nuts positioned on either side of the upper sleeves. Sliding sleeves are symmetrically and movably connected to both sides of the lower part of the ladder, slidingly fitted onto the vertical beams of the ladder. Lower sleeves are fixed to the sliding sleeves. A lower hook rod is slidably inserted into the sleeve, and the lower hook rod is set perpendicular to the plane of the ladder. A lower positioning nut is threaded onto the lower hook rod. The hook body of the lower hook rod and the lower positioning nut are respectively placed on both sides of the lower sleeve. The hook bodies of the upper hook rod and the lower hook rod are located on the same side of the ladder. The hook body of the upper hook rod is locked on the inner end of the upper flange of the main beam of the steel frame bridge, and the hook body of the lower hook rod is locked on the inner end of the lower flange of the main beam of the steel frame bridge. The ladder is locked on the outer ends of the upper and lower flanges of the main beam of the steel frame bridge by tightening the upper and lower positioning nuts. The two ends of the steel plank are supported on the crossbeam of the ladder.

[0007] As a preferred embodiment of this utility model, the upper hook rod includes a straight rod section and a hook body, the hook body is disposed at one end of the straight rod section, the straight rod section is provided with a connecting thread, and the upper positioning nut is threadedly connected to the straight rod section; the lower hook rod includes a straight rod section and a hook body, the hook body is disposed at one end of the straight rod section, the straight rod section is provided with a connecting thread, and the lower positioning nut is threadedly connected to the straight rod section.

[0008] As a preferred technical solution of this utility model, the sliding sleeve is provided with an opening groove that runs through its upper and lower parts and allows the crossbeam of the ladder to pass through.

[0009] As a preferred technical solution of this utility model, a fastening bolt is threadedly connected to the sliding sleeve, and the end of the bolt passes through the sliding sleeve and abuts against the vertical beam of the ladder.

[0010] As a preferred technical solution of this utility model, a protective cage is installed on the ladder.

[0011] As a preferred embodiment of this utility model, the hook of the upper hook rod is bent downwards, and the hook of the lower hook rod is bent upwards.

[0012] This utility model features a scientific design, reasonable structure, simple manufacturing, and convenient operation. It utilizes a hanging basket to erect steel scaffolding to form a working platform. The hanging basket increases the connection points between the working platform and the steel frame bridge, avoiding cantilevered operations and greatly improving operational safety. The working platform formed by the hanging basket and steel scaffolding can be reused multiple times, effectively improving utilization and reducing material and construction costs. Furthermore, the use of the hanging basket and steel scaffolding allows for segmented construction, thus avoiding the problem of affecting the passage of ships. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly introduced below. In the drawings, the components or parts are not necessarily drawn to actual scale.

[0014] Figure 1 This is the main structural view of the present invention.

[0015] Figure 2 This is a side view of the structure of this utility model.

[0016] Figure 3 This is a front view of the structure of the hanging basket in this utility model.

[0017] Figure 4 This is a side view of the structure of the hanging basket in this utility model.

[0018] Figure 5 This is a cross-sectional schematic diagram of the sliding sleeve in this utility model.

[0019] In the diagram: 1. Hanging basket; 2. Steel plank; 3. Main beam; 4. Ladder; 5. Upper sleeve; 6. Upper hook rod; 7. Upper positioning nut; 8. Sliding sleeve; 9. Opening slot; 10. Fastening bolt; 11. Lower sleeve; 12. Lower hook rod; 13. Lower positioning nut; 14. Guard cage. Detailed Implementation

[0020] The embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present utility model and are not intended to limit its scope of protection. It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which this utility model pertains.

[0021] like Figures 1 to 5 As shown, this embodiment provides a steel frame bridge rust removal and anti-corrosion operation platform, including two hanging baskets 1 on the left and right. The two hanging baskets 1 are detachably installed on the two main beams 3 on both sides of the bottom of the steel frame bridge, and a steel scaffolding 2 is supported between the two hanging baskets 1.

[0022] The hanging basket 1 includes a ladder 4. Symmetrical upper sleeves 5 are fixed to both sides of the upper part of the ladder 4. An upper hook rod 6 is slidably inserted into the upper sleeve 5. The upper hook rod 6 is perpendicular to the plane of the ladder 4. An upper positioning nut 7 is threaded onto the upper hook rod 6. The hook body of the upper hook rod 6 and the upper positioning nut 7 are respectively located on both sides of the upper sleeve 5. Specifically, the upper hook rod 6 includes a straight rod section and a hook body. The hook body is located at one end of the straight rod section, and the hook body bends downwards. A connecting thread is provided on the straight rod section, and the upper positioning nut 7 is threaded onto the straight rod section.

[0023] Sliding sleeves 8 are symmetrically and movably connected to the lower sides of the ladder 4. The sliding sleeves 8 are slidably fitted onto the vertical beam of the ladder 4. The sliding sleeves 8 have openings 9 that pass through them from top to bottom and allow the crossbeam of the ladder 4 to pass through, so as to facilitate the free sliding adjustment of the sliding sleeves 8 on the vertical beam of the ladder 4. Fastening bolts 10 are threadedly connected to the sliding sleeves 8. The end of the fastening bolt 10 passes through the sliding sleeve 8 and abuts against the vertical beam of the ladder 4. The fastening bolts 10 are used to fix the position of the sliding sleeves 8 on the vertical beam of the ladder 4. A lower sleeve 11 is fixed to the sliding sleeves 8. A lower hook rod 12 is slidably inserted into the lower sleeve 11. The lower hook rod 12 is perpendicular to the plane of the ladder 4. A lower positioning nut 13 is threaded onto the lower hook rod 12. The hook body of the lower hook rod 12 and the lower positioning nut 13 are respectively placed on both sides of the lower sleeve 11. Specifically, the lower hook rod 12 includes a straight rod section and a hook body. The hook body is set at one end of the straight rod section. The hook body is bent upward. The straight rod section is provided with connecting threads. The lower positioning nut 13 is threaded onto the straight rod section.

[0024] The hook body of the upper hook rod 6 and the hook body of the lower hook rod 12 are located on the same side of the ladder 4. The hook body of the upper hook rod 6 is locked on the inner end of the upper flange of the main beam 3 of the steel frame bridge, and the hook body of the lower hook rod 12 is locked on the inner end of the lower flange of the main beam 3 of the steel frame bridge. The ladder 4 is locked on the outer ends of the upper and lower flanges of the main beam 3 of the steel frame bridge by tightening the upper positioning nut 7 and the lower positioning nut 13.

[0025] A safety cage 14 is installed on the ladder 4 to protect the safety of construction workers; the two ends of the steel scaffolding 2 are supported on the crossbeams of the ladder 4.

[0026] The steel truss bridge rust removal and anti-corrosion work platform described in this embodiment can perform rust removal and anti-corrosion construction on the main beams, crossbeams, cable-stayed beams, and bridge bottom of the steel truss bridge. When performing rust removal and anti-corrosion work on the steel truss bridge, the hanging basket 1 is installed every 4 meters on both sides of the steel truss bridge. Workers perform rust removal and anti-corrosion work on the outer side of the bridge from the hanging basket 1. At the bottom of the hanging basket 1, steel planks 2 are fully laid on the crossbeams of the ladder 4 to form a work platform, thereby performing rust removal and anti-corrosion work on the bottom structure of the bridge. When there are ships passing under the bridge, the construction can be carried out in sections to avoid affecting the passage of ships.

[0027] When performing rust removal and corrosion protection work using the steel bridge rust removal and corrosion protection platform described in this embodiment, please note the following: 1. A continuous lifeline is installed above the main beam 3 of the steel frame bridge, anchored to the lifting lugs and the guardrails at both ends, with no less than 3 fixing clips at the fixing points of the lifeline.

[0028] 2. Installation of hanging basket 1: Hanging basket 1 is hooked onto main beam 3 and secured by upper positioning nut 7 and lower positioning nut 13. To facilitate the installation of hanging basket 1, the protective cage 14 is installed after the ladder 4 is installed, and workers can reach inside the protective cage 14 to work.

[0029] 3. Before use, the welds and fasteners of the hanging basket 1 should be inspected to ensure they are in good condition. A load test of 1.5 times should be conducted outside the factory area. Operation can only proceed after no problems are found.

[0030] 4. At the bottom of the hanging basket 1, steel planks 2 are fully laid on the crossbeams of the ladder 4 to form a working platform for rust removal and anti-corrosion work on the bottom structure of the bridge.

[0031] 5. Workers inside the safety cage 14 should wear life jackets and fasten their safety belts. The safety belts should be attached to the set lifeline. If the safety belt rope is not long enough, a fall arrestor can be added (Note: the safety belt should not be attached to the hanging basket 1).

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A rust removal and corrosion prevention work platform for steel frame bridges, characterized in that: It includes two hanging baskets, one on the left and one on the right. The two hanging baskets can be detachably installed on the two main beams at the bottom of the steel frame bridge, and a steel scaffolding is used to support the two hanging baskets. The hanging basket includes a ladder. Symmetrically fixed upper sleeves are attached to both sides of the upper part of the ladder. Upper hook rods are slidably inserted into the upper sleeves, perpendicular to the plane of the ladder. Upper positioning nuts are threaded onto the upper hook rods. The hooks and positioning nuts are located on opposite sides of the upper sleeves. Symmetrically movably connected sliding sleeves are attached to both sides of the lower part of the ladder, slidingly fitted onto the vertical beams of the ladder. Lower sleeves are fixed to the sliding sleeves, and lower hook rods are slidably inserted into the lower sleeves, perpendicular to the plane of the ladder. The lower hook rod is threaded with a lower positioning nut. The hook body of the lower hook rod and the lower positioning nut are located on both sides of the lower sleeve. The hook bodies of the upper hook rod and the lower hook rod are located on the same side of the ladder. The hook body of the upper hook rod is locked on the inner end of the upper flange of the main beam of the steel frame bridge, and the hook body of the lower hook rod is locked on the inner end of the lower flange of the main beam of the steel frame bridge. The ladder is locked on the outer ends of the upper and lower flanges of the main beam of the steel frame bridge by tightening the upper and lower positioning nuts. The two ends of the steel plank are supported on the crossbeam of the ladder.

2. The steel frame bridge rust removal and anti-corrosion operation platform according to claim 1, characterized in that: The upper hook rod includes a straight rod section and a hook body. The hook body is located at one end of the straight rod section, and the straight rod section is provided with connecting threads. The upper positioning nut is threaded onto the straight rod section. The lower hook rod also includes a straight rod section and a hook body. The hook body is located at one end of the straight rod section, and the straight rod section is provided with connecting threads. The lower positioning nut is threaded onto the straight rod section.

3. The steel frame bridge rust removal and anti-corrosion operation platform according to claim 1, characterized in that: The sliding sleeve has an opening groove that runs through it from top to bottom and allows the crossbeam of the ladder to pass through.

4. The steel frame bridge rust removal and anti-corrosion operation platform according to claim 1, characterized in that: The sliding sleeve is threaded with a fastening bolt, and the end of the fastening bolt passes through the sliding sleeve and abuts against the vertical beam of the ladder.

5. The steel frame bridge rust removal and anti-corrosion operation platform according to claim 1, characterized in that: The ladder is equipped with a safety cage.

6. The steel frame bridge rust removal and anti-corrosion operation platform according to claim 2, characterized in that: The hook of the upper hook rod is bent downwards, while the hook of the lower hook rod is bent upwards.

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