Movable operating platform for simply supported beam

Abstract

The utility model relates to a mobile operating platform for a simply supported beam, the side edge of the simply supported beam is provided with a ballast blocking wall, the operating platform is installed on the ballast blocking wall in a sliding mode, and the operating platform comprises a top protection unit, a bottom protection unit, a first moving unit and a second moving unit, the channel unit is of a vertically-arranged telescopic structure, and the top end of the channel unit is fixedly installed at the bottom of the top protection unit; the platform unit is of a telescopic structure, one end of the platform unit is fixedly installed at the bottom end of the channel unit, the other end of the platform unit is fixedly provided with a second moving unit, and the second moving unit slides on the web of the simply supported beam. The operation platform is convenient and fast to move, manpower is saved, and construction efficiency is improved; the operation platform comprises a channel unit and a platform unit, the platform unit is fixedly installed at the bottom end of the channel unit, the operation platform is provided for operators during web construction, and the operators can go up and down conveniently; and the protective nets are fixedly mounted on the top guardrail, the channel units and the platform guardrail, so that operators are protected, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridges, relates to the simply supported beam of a bridge, and particularly relates to a mobile operation platform for a simply supported beam. Background Art

[0002] After the concrete pouring of the transverse connection wet joint of the simply supported beam of a bridge is completed, in order to reduce the crack development of the simply supported beam and improve the service life of the simply supported beam, it is necessary to carry out transverse prestress tensioning, grouting and anchor sealing construction on the simply supported beam. For a T-shaped beam, the transverse prestress tensioning openings are located on both sides of its web. It is necessary for operators to climb over the parapet wall from the bridge deck and descend to the position of the beam web for construction. Since the operation height is more than 5 meters, it belongs to high-altitude operation. Therefore, the traditional prestress construction operation platform has the following technical problems:

[0003] 1. The operation platform needs to be moved frequently and carried manually. Long-term labor will lead to a decrease in the work efficiency of construction workers, and the operation platform is inconvenient to use;

[0004] 2. When tensioning and grouting, workers need to climb over the parapet wall from the bridge deck and descend to the position of the simply supported beam web. It belongs to high-altitude operation. There is no safety protection for the top and the upper and lower channels of the operation platform, and there are potential safety hazards;

[0005] 3. The construction operation surface of high-altitude operation is limited, and it is inconvenient to install the grouting pipe and the tensioning jack during the construction process, resulting in a significant reduction in the construction efficiency and affecting the construction period;

[0006] 4. The operation platform is far from the beam body, and it is inconvenient for workers to operate during the construction process, resulting in the insecure installation of the grouting pipe and affecting the construction quality.

[0007] Therefore, we propose a mobile operation platform for a simply supported beam to solve the above problems. Content of the Utility Model

[0008] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a mobile operation platform for a simply supported beam with a simple structure and convenient movement.

[0009] To solve the above problems, the technical solution of the utility model is as follows:

[0010] A mobile operation platform for a simply supported beam, a parapet wall is arranged on the side of the simply supported beam, and the operation platform is slidably installed on the parapet wall. The operation platform includes:

[0011] A top protection unit, which is slidably arranged on the parapet wall through a first moving unit;

[0012] A channel unit, which is a vertically arranged telescopic structure, and the top end is fixedly installed at the bottom of the top protection unit;

[0013] The platform unit is a telescopic structure. One end is fixedly installed at the bottom end of the channel unit, and the other end is fixedly installed with the second moving unit. The second moving unit slides on the web of the simply supported beam.

[0014] In a further embodiment, the top protection unit includes a top guardrail and a top crossbeam. The top guardrail is fixedly installed on three sides of the top crossbeam and is suitable for providing protection when entering the channel unit.

[0015] In a further embodiment, the first moving unit includes a plurality of clamping rods, a plurality of vertical roller vertical rods, and a pair of horizontal roller mounting rods. The pair of horizontal roller mounting rods are fixedly installed at intervals at the bottom end of the top crossbeam. A plurality of horizontal rollers are rotatably installed at intervals between the pair of horizontal roller mounting rods, and the horizontal rollers are arranged to roll on the top end of the ballast retaining wall.

[0016] A plurality of clamping rods are fixedly installed at intervals on one of the horizontal roller mounting rods, and a plurality of vertical roller vertical rods are fixedly installed at intervals on the other horizontal roller mounting rod. A pair of vertical roller mounting rods are fixedly installed between adjacent vertical roller vertical rods, and vertical rollers are rotatably installed between each pair of vertical roller mounting rods.

[0017] In a further embodiment, the clamping rods and the vertical rollers are respectively located on both sides of the ballast retaining wall and are suitable for clamping the ballast retaining wall and sliding on the ballast retaining wall.

[0018] In a further embodiment, both the horizontal rollers and the vertical rollers are made of flexible materials.

[0019] In a further embodiment, the channel unit includes a plurality of channel vertical rods and a ladder. Bolt holes are formed on each of the plurality of channel vertical rods, which are suitable for the telescopic movement between adjacent upper and lower channel vertical rods.

[0020] The channel vertical rod at the top is fixedly installed at the bottom end of the top crossbeam, and a ladder is fixedly installed between at least one side of adjacent channel vertical rods.

[0021] In a further embodiment, the platform unit includes a platform guardrail and a platform floor. One end of the platform floor is fixedly installed at the bottom end of the channel vertical rod at the bottom, and a platform guardrail is fixedly installed at the other end of the platform floor. One end of the platform guardrail is fixedly installed on the channel vertical rod.

[0022] In a further embodiment, the platform floor is a telescopic structure and is the same as the telescopic structure of the channel unit.

[0023] In a further embodiment, the second moving unit includes a plurality of rollers fixedly installed at intervals on the platform floor.

[0024] In a further embodiment, protective nets are fixedly installed on the top guardrail, the channel unit, and the platform guardrail.

[0025] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0026] 1. The top end of this operation platform is slidably installed on the retaining wall of the simply supported beam, and the bottom end is slidably installed at the web of the simply supported beam. The movement is convenient and fast, greatly saving manpower and improving the construction efficiency; the operation platform includes a passage unit and a platform unit. The platform unit is fixedly installed at the bottom end of the passage unit, providing an operation platform for the operators during the web construction and facilitating the up and down movement; a protective net is fixedly installed on the top guardrail, passage unit and platform guardrail to protect the operators and reduce potential safety hazards.

[0027] 2. One end of the platform bottom plate of this operation platform is fixedly installed at the bottom end of the passage unit, and the other end is fixedly installed with a second moving unit. The second moving unit is slidably arranged on the web of the simply supported beam, making the platform unit close to the web position, shortening the distance, facilitating the construction operation of the operators and improving the construction quality; moreover, the area of the platform bottom plate can reach 1.5 m 2 , providing sufficient working space for the operators and ensuring the safety and construction efficiency of the operators.

[0028] 3. The horizontal rollers and vertical rollers of this operation platform adopt a polyurethane double-tooth head driven group, which has a certain elastic deformation ability. After the operators enter the operation platform, the operation platform has a certain weight, and the horizontal rollers are pressed down to deform, and then the position is limited, so that the position of the operation platform remains fixed during the construction, and the operators can construct smoothly.

[0029] 4. The first moving unit of this operation platform includes a pair of horizontal roller mounting rods, several clamping rods and several vertical roller vertical rods. Several clamping rods are fixedly installed at intervals on one of the horizontal roller mounting rods, and several vertical roller vertical rods are fixedly installed at intervals on the other horizontal roller mounting rod. A pair of vertical roller mounting rods are fixedly installed between adjacent vertical roller vertical rods, and vertical rollers are rotatably installed between the pair of vertical roller mounting rods. The vertical rollers and the clamping rods are located on both sides of the retaining wall respectively, facilitating clamping the retaining wall and moving on the retaining wall, and improving the stability of the installation and movement of the operation platform.

[0030] 5. The structure of this operation platform is simple, and the production is convenient and fast. It uses the existing retaining wall of the simply supported beam for fixation and movement, reduces the operation difficulty, improves the work efficiency, reduces the construction cost and ensures the construction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of a mobile operation platform for a simply supported beam;

[0032] Figure 2 is a schematic diagram of the structure of the first moving unit of a mobile operation platform for a simply supported beam;

[0033] Figure 3 Schematic diagram of the passage unit structure of a mobile operating platform for a simply supported beam.

[0034] In the figure: 1, simply supported beam; 12, ballast retaining wall; 2, operating platform; 21, top protection unit; 211, top guardrail; 212, top cross beam; 22, passage unit; 221, passage vertical pole; 2211, bolt hole; 222, ladder; 23, platform unit; 231, platform guardrail; 232, platform floor plate; 24, first moving unit; 241, horizontal roller; 242, clamping rod; 243, vertical roller vertical rod; 244, vertical roller; 245, vertical roller mounting rod; 246, horizontal roller mounting rod; 25, second moving unit. Detailed implementation manners

[0035] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0036] Embodiment 1:

[0037] A mobile operating platform for a simply supported beam, such as Figure 1 , Figure 3As shown in the figure, a ballast retaining wall 12 is provided on one side of the simply supported beam 1, and an operation platform 2 is slidably installed on the ballast retaining wall 12. The operation platform 2 is of a C-shaped structure; the bottom end of the operation platform 2 is slidably installed at the web of the simply supported beam 1, suitable for operators to construct at the web position of the simply supported beam 1; the operation platform 2 includes a top protection unit 21, a plurality of channel units 22, a platform unit 23, a first moving unit 24 and a second moving unit 25. On one side of the bottom end of the top protection unit 21, the first moving unit 24 is fixedly installed, and the first moving unit 24 is slidably installed on the ballast retaining wall 12. On the other side of the bottom end of the top protection unit 21, the top end of the channel unit 22 is fixedly installed. The bottom end of the channel unit 22 is fixedly installed with the platform unit 23. One end of the platform unit 23 close to the simply supported beam 1 is fixedly installed with the second moving unit 25, and the second moving unit 25 is slidably installed on the web of the simply supported beam 1.

[0038] The top protection unit 21 includes a top guardrail 211 and a top cross beam 212. The top guardrail 211 is fixedly installed on the top cross beam 212. The top cross beam 212 is of a rectangular frame structure. The top guardrail 211 includes four vertical rods and a plurality of horizontal rods. The four vertical rods are fixedly installed at the four corners of the top cross beam 212. The plurality of horizontal rods are located on both sides of the top cross beam 212 and on the side away from the simply supported beam 1, suitable for operators to enter the operation platform 2; the plurality of horizontal rods are fixedly installed at intervals in the vertical direction between two adjacent vertical rods to form a guardrail, suitable for protecting operators. Preferably, protection nets are fixedly installed on both side surfaces and the side surface away from the simply supported beam 1 of the top guardrail 211; the top cross beam 212 is made of 10# channel steel; the cantilever length of the top cross beam 212 is 0.92 m.

[0039] As Figure 3As shown, several channel units 22 are connected to form a telescopic structure. A channel unit 22 includes four channel vertical poles 221 and two ladders 222. The four channel vertical poles 221 enclose a rectangular structure, and ladders 222 are fixedly installed on both side surfaces. Safety nets are fixedly installed on the remaining side surfaces, which are suitable for protecting the safety of operators. The channel vertical poles 221 of the upper and lower adjacent channel units 22 partially overlap. A number of bolt holes 2211 are vertically spaced on the channel vertical poles 221 and bolts are provided. The spacing between two adjacent bolt holes 2211 is the same as the spacing between the crossbars of the ladder 222, so that the length of the upper and lower adjacent channel units 22 can be adjusted according to the construction requirements, and then the height of the entire operation platform 2 can be adjusted. The top ends of the four channel vertical poles 221 at the topmost are fixedly installed on the bottom end surface of the top crossbeam 212 by welding and bolting. The bottom ends of the four channel vertical poles 221 at the bottommost are fixedly installed on the platform unit 23 by welding and bolting. The ladder 222 includes a number of crossbars arranged at vertical intervals. Preferably, the crossbars of the ladder 222 are made of steel bars with a diameter of 16 mm and a length of 0.61 m. The channel vertical poles 221 are made of 5# angle steel and have a length of 2.8 m.

[0040] The platform unit 23 includes a platform guardrail 231 and a platform bottom plate 232. The platform guardrail 231 is fixedly installed at the bottom end of the platform bottom plate 232. The side ends of the platform guardrail 231 are fixedly installed on the channel vertical poles 221. The platform guardrail 231 includes a number of vertical poles and a number of crossbars. The number of crossbars enclose a rectangular frame structure. One end of two of the crossbars is fixedly installed on the channel vertical poles 221, so that the space inside the platform unit 23 is connected to the space of the channel unit 22, which is convenient for operators to walk. A number of vertical poles of the platform guardrail 231 are horizontally and fixedly installed between the crossbars and the platform bottom plate 232. The platform bottom plate 232 is a telescopic structure, which is the same as the telescopic structure of the channel unit 22 and will not be elaborated here. It is suitable for adjusting the size of the platform bottom plate 232 according to the construction requirements. The platform bottom plate 232 includes a pair of longitudinal bars and a number of crossbars. A number of crossbars are horizontally and fixedly installed between the pair of longitudinal bars. Bamboo plywood with a thickness of 1.5 cm is laid on the crossbars and longitudinal bars to form the platform bottom plate 232. A second moving unit 25 is fixedly installed at one end of the platform bottom plate 232 close to the simply supported beam 1. The second moving unit 25 is a number of rollers arranged at intervals. The rollers abut against the web of the simply supported beam 1 to enhance the stability of the operation platform 2. Preferably, a safety net is fixedly installed on the platform guardrail 231. The longitudinal bars of the platform bottom plate 232 are made of 5# angle steel. The net size of the platform bottom plate 232 is 1.6 m * 0.91 m. The crossbars of the platform bottom plate 232 have a cylinder diameter of 12 mm, and the spacing between two adjacent crossbars is 0.2 m. The platform guardrail 231 is made of steel bars with diameters of 20 mm and 12 mm, and the length of both is 0.8 m.

[0041] As Figure 2As shown in the figure, the components of the first moving unit 24 are installed together by welding and bolting. The components include several horizontal rollers 241, several clamping rods 242, several vertical roller vertical rods 243, several vertical rollers 244, several pairs of vertical roller mounting rods 245, and a pair of horizontal roller mounting rods 246. The pair of horizontal roller mounting rods 246 are arranged at intervals and fixedly installed at the bottom end of the top cross beam 212. Several horizontal rollers 241 are rotatably installed at intervals between the pair of horizontal roller mounting rods 246. The horizontal rollers 241 are located at the top end of the ballast retaining wall 12. Several vertically arranged vertical roller vertical rods 243 are longitudinally and fixedly installed on the horizontal roller mounting rod 246 close to the simply supported beam 1. A pair of horizontally arranged vertical roller mounting rods 245 are fixedly installed between adjacent vertical roller vertical rods 243. A vertical roller 244 is rotatably installed between the pair of vertical roller mounting rods 245. The vertical roller 244 is rollingly installed on one side of the ballast retaining wall 12. Several clamping rods 242 are longitudinally and fixedly installed at intervals on the horizontal roller mounting rod 246 far from the simply supported beam 1. The clamping rods 242 are located on the other side of the ballast retaining wall 12. The clamping rods 242 and the vertical rollers 244 are clamped on the ballast retaining wall 12 to ensure the stable installation of the operation platform 2. Preferably, the clamping rods 242, the vertical roller vertical rods 243, the vertical roller mounting rods 245, and the horizontal roller mounting rods 246 are made of 10# channel steel or 5# angle steel; the horizontal rollers 241 and the vertical rollers 244 are polyurethane double-headed driven sets of model RB334 or RB327.

[0042] The working principle of the present utility model is as follows: After the operation platform 2 is moved to the designated position, when the operator enters the operation platform 2, since the horizontal rollers 241 are made of polyurethane material and have a certain elasticity, under the action of the operator's gravity, the horizontal rollers 241 are pressed downward and deformed, thereby performing limit and ensuring that the operation platform 2 is fixed in place during use.

[0043] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mobile operating platform for a simply supported beam, wherein a ballast retaining wall (12) is provided on the side of the simply supported beam (1), characterized in that: An operating platform (2) is slidably mounted on the ballast retaining wall (12), and the operating platform (2) comprises: A top protection unit (21) is slidably arranged on the ballast retaining wall (12) via a first moving unit (24); The channel unit (22) is a telescopic structure arranged vertically, and the top end is fixedly mounted on the bottom of the top protection unit (21); The platform unit (23) is a telescopic structure, one end of which is fixedly mounted on the bottom end of the channel unit (22), and the other end of which is fixedly mounted on a second movable unit (25), wherein the second movable unit (25) slides on the web of the simply supported beam (1).

2. A mobile operating platform for simply supported beams according to claim 1, characterized in that: The top protection unit (21) comprises a top guardrail (211) and a top crossbeam (212); the top guardrail (211) is fixedly mounted on three sides of the top crossbeam (212) and is suitable for providing protection when entering the channel unit (22).

3. A mobile operating platform for simply supported beams according to claim 2, characterized in that: The first moving unit (24) comprises a plurality of clamping rods (242), a plurality of vertical roller rods (243), and a pair of horizontal roller mounting rods (246), wherein the pair of horizontal roller mounting rods (246) are fixedly mounted at intervals on the bottom end of the top crossbeam (212), and a plurality of horizontal rollers (241) are rotatably mounted at intervals between the pair of horizontal roller mounting rods (246), and the horizontal rollers (241) are rotatably arranged on the top end of the ballast retaining wall (12); A plurality of the clamping rods (242) are fixedly installed at intervals in a transverse direction on one of the horizontal roller mounting rods (246), a plurality of vertical roller vertical rods (243) are fixedly installed at intervals in a transverse direction on another of the horizontal roller mounting rods (246), a pair of vertical roller mounting rods (245) are fixedly installed between adjacent vertical roller vertical rods (243), and a vertical roller (244) is rotatably installed between each pair of the vertical roller mounting rods (245).

4. The mobile operating platform for simply supported beams according to claim 3, characterized in that: The clamping rod (242) and the vertical roller (244) are respectively located on both sides of the ballast retaining wall (12), and are suitable for clamping the ballast retaining wall (12) and sliding on the ballast retaining wall (12).

5. The mobile operating platform for simply supported beams according to claim 4, characterized in that: The horizontal roller (241) and the vertical roller (244) are both made of flexible materials.

6. The mobile operating platform for simply supported beams according to claim 5, characterized in that: The channel unit (22) comprises a plurality of channel uprights (221) and a ladder (222), and a plurality of the channel uprights (221) are provided with bolt holes (2211) suitable for the upper and lower adjacent channel uprights (221) to be extended and retracted; The channel upright pole (221) located at the top is fixedly mounted on the bottom end of the top crossbeam (212), and the ladder (222) is fixedly mounted between the channel upright poles (221) adjacent to each other on at least one side.

7. The mobile operating platform for simply supported beams according to claim 6, characterized in that: The platform unit (23) comprises a platform guardrail (231) and a platform base plate (232), one end of the platform base plate (232) is fixedly mounted on the bottom end of the channel upright pole (221) located at the bottom end, the platform guardrail (231) is fixedly mounted on the other end of the platform base plate (232), and one end of the platform guardrail (231) is fixedly mounted on the channel upright pole (221).

8. The mobile operating platform for simply supported beams according to claim 7, characterized in that: The platform bottom plate (232) is a telescopic structure, which is the same as the telescopic structure of the channel unit (22).

9. The mobile operating platform for simply supported beams according to claim 8, characterized in that: The second moving unit (25) comprises a plurality of rollers fixedly installed at intervals on the platform bottom plate (232).

10. A mobile operating platform for simply supported beams according to claim 9, characterized in that: Protective nets are fixedly mounted on the top guardrail (211), the channel unit (22) and the platform guardrail (231).

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