Movable operation platform for reinforcing construction of bottom plate outside box of large-span concrete box girder

Abstract

The utility model relates to the technical field of bridge construction, and provides a movable operation platform for reinforcing construction of a bottom plate outside a box of a large-span concrete box girder, which is arranged on the concrete box girder for cooperative use and comprises a movable unit, a movable unit, a movable unit, a movable unit and a movable unit, and the movable unit is movably arranged on the concrete box girder and used for moving along the length direction of the concrete box girder; the suspension unit comprises an upper suspender, a middle suspender and a lower suspender, the upper end of the upper suspender is connected with the moving unit, the lower end of the upper suspender is connected with the upper end of the middle suspender, the lower end of the middle suspender is connected with the upper end of the lower suspender, the lower end of the lower suspender is connected with the operation platform unit, and the middle suspender has a plurality of different length sizes and is used for adjusting the height of the operation platform unit; the operation platform unit comprises a protection assembly and a bottom plate assembly, the bottom plate assembly is connected with the lower end of the lower suspender, and the protection assembly surrounds the edge of the bottom plate assembly. The operation platform can move according to needs and can adapt to changes of the height of a bridge, and the safety and efficiency of construction are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a mobile working platform for reinforcing the outer bottom plate of a large-span concrete box beam. Background Art

[0002] As the times change, the bridges built in the early days of my country can no longer meet the increasingly busy transportation tasks, and they need to be reinforced and repaired for diseases and defects. Especially in the case of large-span concrete box girders, different degrees of horizontal or vertical cracks have appeared. Traditional repair and reinforcement technology usually seals the cracked parts first, then pastes materials with high tensile strength (such as carbon fiber, steel, etc.), and finally applies grouting to the surface.

[0003] However, this process involves long-term high-altitude operations, which makes construction difficult for construction workers. In addition, compared with the inside of the concrete box, the reinforcement and maintenance construction of the bottom plate outside the box is more difficult and has a higher risk factor.

[0004] Therefore, in view of the above problems, a mobile working platform for reinforcement construction of the outer bottom slab of a large-span concrete box girder is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model develops a mobile work platform for the reinforcement construction of the outer bottom plate of a large-span concrete box girder. The utility model can provide a work platform for the reinforcement and maintenance construction of the outer bottom plate of a concrete box girder. The platform can be moved as needed and can adapt to changes in the height of the bridge beam, thereby improving the safety and efficiency of the construction.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] A mobile work platform for reinforcing the outer bottom plate of a large-span concrete box girder is arranged on the concrete box girder for use, and comprises: a moving unit, which is movably arranged on the concrete box girder and is used to move along the length direction of the concrete box girder; a suspension unit, which comprises an upper suspension rod, a middle suspension rod and a lower suspension rod, wherein the upper end of the upper suspension rod is connected to the moving unit, and the lower end is connected to the upper end of the middle suspension rod, the lower end of the middle suspension rod is connected to the upper end of the lower suspension rod, and the lower end of the lower suspension rod is connected to the work platform unit, and the middle suspension rod comprises several different lengths for adjusting the height of the work platform unit; the work platform unit comprises a protective assembly and a bottom plate assembly, wherein the bottom plate assembly is connected to the lower end of the lower suspension rod, and the protective assembly is arranged around the edge of the bottom plate assembly.

[0008] Preferably, the mobile unit includes a mobile component and a mobile frame, the mobile component includes a sliding guide rail, a pulley and a pulley connecting rod, the sliding guide rail is arranged on the inner side of the bottom of the anti-collision wall above the concrete box beam along the length direction of the concrete box beam, the pulley is slidingly arranged on the sliding guide rail for sliding along the length direction of the concrete box beam, one end of the pulley connecting rod is connected to the pulley, and the other end is connected to the mobile frame, the mobile frame includes a sliding vertical rod and a sliding horizontal rod, the bottom end of the sliding vertical rod is connected to the pulley connecting rod, the upper end of the sliding vertical rod is connected to one end of the sliding horizontal rod, and the other end of the sliding horizontal rod is connected to the upper suspension rod.

[0009] Preferably, the mobile frame further comprises a plurality of triangular reinforcement plates, which are arranged at the connection between the sliding vertical rod and the sliding horizontal rod, and between the sliding horizontal rod and the upper suspension rod.

[0010] Preferably, the suspension unit further comprises a step ladder cross bar and a protective round bar, and the step ladder cross bar and the protective round bar each comprise a plurality of them, and are evenly and horizontally arranged on the upper suspension rod, the middle suspension rod and the lower suspension rod.

[0011] Preferably, the upper suspension rod and the middle suspension rod, and the middle suspension rod and the lower suspension rod are connected to each other via connecting pins.

[0012] Preferably, the base plate assembly includes a plurality of base plate cross bars, base plate longitudinal bars and steel grating plates. The plurality of base plate cross bars and base plate longitudinal bars are cross-arranged as support rods and are horizontally connected to the lower end of the lower suspension rod. A plurality of steel grating plates are arranged on the base plate cross bars and base plate longitudinal bars as platform plates for easy movement. The protection assembly includes a plurality of protection vertical bars and protection cross bars. The plurality of protection vertical bars are vertically arranged around the platform plate. The plurality of protection cross bars connect adjacent protection vertical bars as auxiliary supports.

[0013] The effects provided in the utility model content are only the effects of the embodiments, not all the effects of the utility model. The above technical solution has the following advantages:

[0014] 1. The utility model is provided with a moving unit, which can drive the whole device to move along the length direction of the concrete box beam according to the construction needs, so as to carry out maintenance construction on different positions of the outer bottom plate of the box, thereby improving the efficiency and practicality of the reinforcement and maintenance construction of the outer bottom plate of the box;

[0015] 2. The utility model sets a suspension unit, and the middle suspension rod of the suspension unit includes a plurality of sizes with different lengths. By replacing the middle suspension rods of different lengths, the height of the working platform can be changed, thereby adapting to the change of the height of the beam along the bridge, and the practicability for different bridges is better, thereby improving the practicability;

[0016] 3. The utility model provides protection for construction workers when they go up and down the ladder and construct on the working platform by arranging the protection components and the protection round rods, thereby avoiding accidents and improving the safety of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0018] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the utility model when in use;

[0019] Figure 2 It is a front view structural schematic diagram of the embodiment of the utility model when in use;

[0020] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0021] Figure 4 It is a side view schematic diagram of the structure of the embodiment of the utility model when in use;

[0022] Figure 5 It is a schematic diagram of the top structure of the embodiment of the utility model when in use.

[0023] In the figure, 1. concrete box girder; 2. moving unit; 3. suspension unit; 4. protection assembly; 5. bottom plate assembly; 11. anti-collision wall; 21. moving assembly; 22. moving frame; 31. upper suspension rod; 32. middle suspension rod; 33. lower suspension rod; 34. step ladder cross bar; 35. protection round rod; 36. connecting pin; 41. protection vertical rod; 42. protection cross bar; 51. bottom plate cross bar; 52. bottom plate longitudinal rod; 53. steel grating plate; 211. sliding guide rail; 212. pulley; 213. pulley connecting rod; 221. sliding vertical rod; 222. sliding cross bar; 223. triangular reinforcement plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-5 As shown, the utility model provides a technical solution:

[0026] A mobile work platform for reinforcing the outer bottom plate of a large-span concrete box girder is arranged on a concrete box girder 1 for use, and includes: a moving unit 2, which is movably arranged on the concrete box girder 1 and is used to move along the length direction of the concrete box girder 1; a suspension unit 3, which includes an upper suspension rod 31, a middle suspension rod 32 and a lower suspension rod 33, the upper end of the upper suspension rod 31 is connected to the moving unit 2, and the lower end is connected to the upper end of the middle suspension rod 32, the lower end of the middle suspension rod 32 is connected to the upper end of the lower suspension rod 33, the lower end of the lower suspension rod 33 is connected to the work platform unit, and the middle suspension rod 32 includes several different length sizes for adjusting the height of the work platform unit; the work platform unit includes a protective component 4 and a bottom plate component 5, the bottom plate component 5 is connected to the lower end of the lower suspension rod 33, and the protective component 4 is arranged around the edge of the bottom plate component 5.

[0027] In this embodiment, the mobile unit 2 includes a mobile component 21 and a mobile frame 22. The mobile component 21 includes a sliding guide rail 211, a pulley 212 and a pulley connecting rod 213. The sliding guide rail 211 is temporarily anchored along the length direction of the concrete box beam 1 to the inner side of the bottom of the anti-collision wall 11 on both sides above the concrete box beam 1. The sliding guide rail 211 may include multiple sections. The multiple sections of the sliding guide rail 211 are spliced ​​and connected front and back to adapt to different lengths of the concrete box beam 1. The pulley 212 is detachably slidably arranged on the sliding guide rail 211 for sliding along the length direction of the concrete box beam 1. One end of the pulley connecting rod 213 is coaxial with the pulley 212. The bottom end of the sliding vertical rod 221 is connected to the pulley connecting rod 213, and the upper end of the sliding vertical rod 221 is connected to one end of the sliding cross rod 222. The other end of the sliding cross rod 222 extends outward away from the concrete box girder 1 and is connected to the upper end of the upper suspension rod 31. Preferably, at least two pulleys 212 are arranged in each sliding guide rail 211, and the two pulleys 212 are connected to the moving frame 22, and the sliding vertical rods 221 connected on the same sliding guide rail 211 are connected as a whole by connecting longitudinal rods to increase the stability of the moving unit.

[0028] In this embodiment, the mobile frame 22 also includes a plurality of triangular reinforcement plates 223, and the triangular reinforcement plates 223 are all arranged at the connection between the sliding vertical rod 221 and the sliding horizontal rod 222, and the sliding horizontal rod 222 and the upper suspension rod 31. The connection is set to a right angle, and the triangular reinforcement plates 223 are also set to a right-angled triangle shape, which is set corresponding to the right angle of the connection. Welding or bolt connection can be adopted, and the connection is more stable, thereby improving the overall safety.

[0029] In this embodiment, the suspension unit 3 also includes a step ladder cross bar 34 and a protective round bar 35. The step ladder cross bar 34 and the protective round bar 35 each include a plurality of them, and are horizontally and evenly arranged between the upper suspension bars 31, the middle suspension bars 32 and the lower suspension bars 33 on the same side. The step ladder cross bar 34 serves as a step ladder for construction workers to go up and down the working platform. The protective round bar 35 can be set to be U-shaped or semi-circular. Construction workers pass through the space enclosed by the protective round bar 35, and the step ladder cross bar 34 cooperates with the step ladder cross bar 34 to provide safety for construction workers to go up and down the working platform, thereby improving the safety and practicality of the device.

[0030] In this embodiment, the upper suspension rod 31 and the middle suspension rod 32, and the middle suspension rod 32 and the lower suspension rod 33 are connected to each other through connecting pins 36 to facilitate disassembly and installation, facilitate the installation and construction of the device, and improve the economy.

[0031] In another embodiment, the length of the middle suspension rod 32 can be set to a fixed number. By connecting different numbers of middle suspension rods 32 to each other and changing the length of the connection, and then connecting them with the upper suspension rod 31 and the lower suspension rod 33, the same effect of changing the height of the working platform can be achieved, and the processing is more convenient and more economical.

[0032] In this embodiment, the base plate assembly 5 includes a plurality of base plate cross bars 51, a base plate longitudinal bar 52 and a steel grating plate 53. The plurality of base plate cross bars 51 and the base plate longitudinal bar 52 are cross-arranged as a whole as supporting rods, which can be welded and horizontally connected to the lower end of the lower suspension rod 33. The steel grating plate 53 is arranged on the base plate cross bars 51 and the base plate longitudinal bar 52 as a platform plate to facilitate construction workers to walk on the working platform. The protection assembly 4 includes a plurality of protection vertical bars 41 and protection cross bars 42. The plurality of protection vertical bars 41 are vertically arranged around the platform plate. The plurality of protection cross bars 42 connect the adjacent protection vertical bars 41 as auxiliary supports for the protection vertical bars 41, thereby improving the safety of construction workers during construction.

[0033] Working principle: First, the bottom inner sides of the anti-collision walls 11 on both sides of the concrete box beam 1 are arranged along the length direction of the concrete box beam 1. At least two pulleys 212 are slidably arranged in the sliding guide rails 211. The pulleys 212 are provided with pulley connecting rods 213. The pulley connecting rods 213 are connected to the sliding vertical rods 221. The sliding vertical rods 221 on the same sliding guide rail 211 are connected by connecting longitudinal rods. The upper ends of the sliding vertical rods 221 are connected to the sliding cross rods 22 2. The sliding cross bars 222 are horizontally extended away from the outside of the concrete box beam 1 and are connected to the upper suspension rod 31. A triangular reinforcement plate 223 is provided at the connection between the sliding vertical bar 221 and the sliding cross bar 222 and the connection between the sliding cross bar 222 and the upper suspension rod 31. The triangular reinforcement plate 223 can be welded to enhance the support. According to the beam height of the concrete box beam 1, a middle suspension rod 32 of appropriate length is selected. The middle suspension rod 32 is connected to the upper suspension rod 31 through a connecting pin 36. The bottom of the middle suspension rod 32 is connected by a connecting pin The bottom of the lower suspension rod 33 is connected to the bottom of the lower suspension rod 33, and the bottom of the lower suspension rod 33 is connected to the bottom plate cross bar 51 and the bottom plate longitudinal bar 52 which are cross-set as one body, and can be connected by welding. The steel grid plate 53 is placed on the integrated bottom plate cross bar 51 and the bottom plate longitudinal bar 52, and the steel grid plate 53 is covered with the integrated bottom plate cross bar 51 and the bottom plate longitudinal bar 52. A plurality of protective vertical bars 41 are evenly arranged around the steel grid plate 53, and the protective vertical bars 41 are connected to the protective horizontal bars 42 to assist in supporting the protective vertical bars 41. Ladder cross bars 34 and protective round bars 35 are evenly arranged between the upper suspension rods 31 and between the middle suspension rods 32 and the lower suspension rods 33 on the rails 211. The ladder cross bars 34 are convenient for construction workers to get on and off the working platform, and the protective round bars 35 protect the construction workers from falling. After the device is installed, the construction workers climb down from the top of the concrete box girder 1 to the working platform through the ladder cross bars 34, and the mobile device moves to the bottom of the outer bottom plate of the box to be repaired, so that the construction workers can carry out long-term repair construction with higher safety.

[0034] The parts not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mobile work platform for reinforcing the outer bottom plate of a large-span concrete box girder, arranged on a concrete box girder (1) for use, characterized in that: include: A moving unit (2), the moving unit (2) is movably arranged on the concrete box girder (1) and is used to move along the length direction of the concrete box girder (1); The suspension unit (3) comprises an upper suspension rod (31), a middle suspension rod (32) and a lower suspension rod (33), wherein the upper end of the upper suspension rod (31) is connected to the mobile unit (2), and the lower end is connected to the upper end of the middle suspension rod (32), the lower end of the middle suspension rod (32) is connected to the upper end of the lower suspension rod (33), and the lower end of the lower suspension rod (33) is connected to the working platform unit, and the middle suspension rod (32) comprises a plurality of different length sizes for adjusting the height of the working platform unit; The working platform unit comprises a protection component (4) and a base plate component (5), wherein the base plate component (5) is connected to the lower end of the lower suspension rod (33), and the protection component (4) is arranged around the edge of the base plate component (5).

2. A mobile work platform for reinforcing the outer bottom plate of a large-span concrete box beam according to claim 1, characterized in that: The mobile unit (2) comprises a mobile component (21) and a mobile frame (22). The mobile component (21) comprises a sliding guide rail (211), a pulley (212) and a pulley connecting rod (213). The sliding guide rail (211) is arranged on the inner side of the bottom of the anti-collision wall (11) above the concrete box girder (1) along the length direction of the concrete box girder (1). The pulley (212) is slidably arranged on the sliding guide rail (211) and is used to slide along the length direction of the concrete box girder (1). One end of the pulley connecting rod (213) is connected to the pulley (212), and the other end is connected to the mobile frame (22). The mobile frame (22) comprises a sliding vertical rod (221) and a sliding horizontal rod (222). The bottom end of the sliding vertical rod (221) is connected to the pulley connecting rod (213), the upper end of the sliding vertical rod (221) is connected to one end of the sliding horizontal rod (222), and the other end of the sliding horizontal rod (222) is connected to the upper suspension rod (31).

3. The mobile work platform for reinforcing the outer bottom plate of a large-span concrete box beam according to claim 2 is characterized by: The mobile frame (22) further comprises a plurality of triangular reinforcement plates (223), wherein the triangular reinforcement plates (223) are arranged at the connection between the sliding vertical rod (221) and the sliding horizontal rod (222), and at the connection between the sliding horizontal rod (222) and the upper suspension rod (31).

4. The mobile work platform for reinforcing the outer bottom plate of a large-span concrete box beam according to claim 3 is characterized by: The suspension unit (3) further comprises a step ladder cross bar (34) and a protective round bar (35), each of which comprises a plurality of step ladder cross bars (34) and protective round bars (35), and each of which is evenly and horizontally arranged on the upper suspension bar (31), the middle suspension bar (32) and the lower suspension bar (33).

5. The mobile work platform for reinforcing the outer bottom plate of a large-span concrete box beam according to claim 4 is characterized by: The upper suspension rod (31) and the middle suspension rod (32), as well as the middle suspension rod (32) and the lower suspension rod (33) are connected to each other via a connecting pin (36).

6. The mobile work platform for reinforcing the outer bottom plate of a large-span concrete box beam according to claim 5 is characterized by: The bottom plate assembly (5) comprises a plurality of bottom plate cross bars (51), bottom plate longitudinal bars (52) and steel grating plates (53). The plurality of bottom plate cross bars (51) and bottom plate longitudinal bars (52) are cross-arranged as a whole as supporting rods and are horizontally connected to the lower end of the lower suspension rod (33). The plurality of steel grating plates (53) are arranged on the bottom plate cross bars (51) and the bottom plate longitudinal bars (52) as a platform plate. The protection assembly (4) comprises a plurality of protection vertical bars (41) and protection cross bars (42). The plurality of protection vertical bars (41) are vertically arranged around the platform plate, and the plurality of protection cross bars (42) are connected to adjacent protection vertical bars (41) as auxiliary supports.

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