Assembly type work platform provided with ladder stand system

Abstract

The utility model belongs to the technical field of application research of bridge engineering construction operation platforms and crawling ladders, and discloses an assembly type operation platform with a crawling ladder system, which comprises a first structure unit, a second structure unit and a third structure unit which are detachably and fixedly connected into a square shape, the first structure unit and the second structure unit are both L-shaped, and the third structure unit is L-shaped. The third structure unit is linear; the first structural unit, the second structural unit and the third structural unit each comprise a plurality of stand columns, cross rods and a platform, the cross rods are perpendicularly fixed between the two stand columns, and the platform is arranged between the tops of the two stand columns. The third structure unit is further provided with a crawling ladder leading to the platform from the bottom of the stand column. Rapid assembly construction can be achieved, the mounting and dismounting work efficiency and the turnover utilization rate are greatly improved, the structure is light, personnel operation is convenient, the component modularization and standardization degree is high, and flexibility is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge engineering construction work platform and ladder application research, and specifically relates to an assembleable work platform provided with a ladder system. Background Art

[0002] The main structure of a single-tower cable-stayed bridge includes a cable tower under pressure, a cable under tension, and a main beam under bending. It is an economical and efficient bridge structure that is suitable for a variety of terrains and environmental conditions. For example, a single-tower cable-stayed bridge with a span of 2×42.4m is arranged in a construction project. The bridge tower is located on the inner side of the flat curve of the main beam. A single-column bridge tower with a transverse inclination angle of 5° is adopted. The lower tower column is a concrete structure with a height of 13.8m on the east side and 14.8m on the west side, and a diameter of 2.43m~3.14m. The bridge tower is equipped with a cap beam, which is used to support the main beam and transfer the load of the main beam. The cap beam is consolidated with the lower tower column. When constructing the main structure of the cable tower, it is necessary to set up an operating platform. Traditional operating platforms mostly use external scaffolding as a construction platform, but the scaffolding has high integrity requirements and needs to be set up on site. The construction period is long, the installation and disassembly process is cumbersome, the turnover is inconvenient, the utilization rate is low, and the production and use costs are high.

[0003] In the prior art, a Chinese patent document with publication number CN206495142U and publication date August 15, 2017 discloses an assembled elevated bridge pier construction platform, including a plurality of platform units stacked and connected longitudinally, the platform unit including an outer frame and an inner frame, the outer frame consisting of an outer bottom plate annular frame, an outer top plate annular frame and a plurality of outer columns, the inner frame consisting of an inner bottom plate annular frame, an inner top plate annular frame and a plurality of inner columns; a pedestrian ladder is provided between the outer frame and the inner frame, leading from the bottom surface of the platform unit to the top surface of the platform unit, the pedestrian ladder includes a ladder frame and a multi-step pedal installed on the ladder frame, the upper side of the platform unit is open, and the plurality of stacked and assembled platform units are connected through the pedestrian ladder. The utility model is assembled by prefabricated multiple platform units, replacing the traditional scaffolding erection process, and improving the installation and disassembly efficiency to a certain extent. However, the utility model is a "U"-shaped whole constructed by an inner frame and an outer frame, and can only be used in the central construction scene of a fixed size, with poor flexibility and low utilization rate. Utility Model Content

[0004] The utility model aims to provide an assembleable work platform provided with a ladder system, which improves the installation and disassembly efficiency of a traditional work platform, facilitates turnover and has high flexibility.

[0005] The technical solution adopted by the utility model is an assembled work platform provided with a ladder system, comprising a first structural unit, a second structural unit and a third structural unit which are detachably fixedly connected in a U-shape, wherein the first structural unit and the second structural unit are both L-shaped, and the third structural unit is I-shaped; the first structural unit, the second structural unit and the third structural unit each comprise a plurality of columns, a cross bar and a platform, wherein the cross bar is vertically fixed between two of the columns, and the platform is arranged between the tops of the two columns; the third structural unit is also provided with a ladder leading from the bottom of the column to the platform.

[0006] Preferably, the first structural unit, the second structural unit and the third structural unit are fixed by connecting flanges, and the top and the bottom of the column are both provided with connecting flanges.

[0007] Preferably, cross bars are provided on the top and bottom of the upright column 4 .

[0008] Preferably, a plurality of evenly spaced connecting rods are provided at the bottom of the platform, and the connecting rods are vertically fixed between two cross rods along the length direction.

[0009] Preferably, a railing is provided at the inner edge of the platform, and a protective net is provided at the outer edge of the platform.

[0010] Preferably, the platform is one or more patterned steel plates.

[0011] Preferably, an oblique rod is further provided, and the oblique rod is fixedly arranged obliquely between the upright column and the cross bar, and the oblique rod, the upright column and the cross bar form a triangular structure.

[0012] Preferably, a plurality of the upright posts and the crossbar are prefabricated and welded into an integral structure.

[0013] The beneficial effects of the utility model are:

[0014] The utility model provides an assembleable work platform with a ladder system, which can realize rapid assembly and construction, thereby greatly improving the installation and disassembly efficiency and turnover utilization rate;

[0015] The utility model provides an assembleable work platform with a ladder system, which reduces the material input and required accessories compared to traditional platforms and ladders, thus greatly saving costs.

[0016] The utility model provides an assembleable work platform with a ladder system, which has a light structure, a stable connection, is safe and convenient for personnel to operate, and effectively shortens the construction period;

[0017] The utility model is an assembled working platform provided with a ladder system, and its components have a high degree of modularization and standardization. It can be assembled and used as a whole, and can also be installed and used individually. It can be split and adjusted according to the characteristics of the structure, and can be used for the construction of various piers and bridge towers, foundation pit passages, etc., and has good flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a top view of the utility model;

[0020] Figure 3 A top view of the first structural unit of the utility model;

[0021] Figure 4 It is a top view of the second structural unit of the utility model;

[0022] Figure 5 It is a top view of the third structural unit of the utility model;

[0023] Figure 6 for Figure 2 Schematic diagram of the structure at 1-1;

[0024] Figure 7 for Figure 2 The structural diagram of 2-2 in the middle;

[0025] Figure 8 for Figure 2 Schematic diagram of the structure at 3-3.

[0026] In the figure: 1, first structural unit; 2, second structural unit; 3, third structural unit; 4, column; 5, cross bar; 6, platform; 7, connecting flange; 8, ladder; 9, cable tower; 10, connecting rod; 11, diagonal rod. DETAILED DESCRIPTION

[0027] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0028] Example 1

[0029] like Figure 1 and Figure 2As shown, the utility model is an assembled work platform provided with a ladder system, including a first structural unit 1, a second structural unit 2 and a third structural unit 3 which are detachably fixedly connected in a U-shape, the first structural unit 1 and the second structural unit 2 are both L-shaped, and the third structural unit 3 is a straight line; the first structural unit 1, the second structural unit 2 and the third structural unit 3 all include a plurality of columns 4, a cross bar 5 and a platform 6, the cross bar 5 is vertically fixed between the two columns 4, and the platform 6 is arranged between the tops of the two columns 4; the third structural unit 3 is also provided with a ladder 8 leading from the bottom of the column 4 to the platform 6.

[0030] The first structural unit 1 and the second structural unit 2 of the utility model are both arranged in an L shape, so as to realize modularization and standardization, and at the same time can improve the connection strength, reduce the stress on the four corners of the working platform, and improve the structural stability.

[0031] Example 2

[0032] On the basis of Example 1, the top and bottom of the column 4 are both provided with a cross bar 5, and the bottom of the platform 6 is provided with a plurality of evenly spaced connecting rods 10, which are vertically fixed between two cross bars 5 along the length direction, so as to further improve the structural stability of the system. Figure 3 As shown, the first structural unit 1 is provided with 6 columns 4, and the 6 columns 4 are arranged in an L shape. Specifically, 3 columns 4 are arranged at one end of the L shape, 2 columns are arranged at the other end, and 1 column is arranged at the corner. The ladder 8 is arranged on the outside of the platform 6; Figure 4 As shown, the second structural unit 2 is provided with 6 columns 4, and the 6 columns 4 are arranged in an L shape. Specifically, 3 columns 4 are arranged at one end of the L shape, 2 columns are arranged at the other end, and 1 column is arranged at the corner; Figure 5 As shown, the third structural unit 3 is provided with four columns 4 in total, and specifically, two columns 4 are respectively provided at both ends of the straight line.

[0033] The first structural unit 1 , the second structural unit 2 and the third structural unit 3 of the utility model are fixed by a connecting flange 7 , and the top and the bottom of the column 4 are both provided with a connecting flange 7 .

[0034] The platform 6 is formed by welding one or more iron plates, and this embodiment uses a patterned steel plate with a thickness of 3 mm.

[0035] Optionally, the assembleable work platform provided with a ladder system of the present invention is further provided with an inclined rod 11, such as Figure 6 and Figure 8 As shown, the oblique rod 11 is fixedly arranged between the column 4 and the cross rod 5 in an inclined manner. The oblique rod 11, the column 4 and the cross rod 5 form a triangular structure, which further improves the structural stability of the system.

[0036] The assembled work platform with a ladder system of the utility model is also provided with a safety protection device, which includes a railing arranged along the inner edge of the platform 6 and a protection net arranged at the outer edge of the platform 6. The railing is fixed on the cross bar 5, has a certain height and does not affect the construction, and the protection net is fixedly arranged between the outer side of the edge of the platform 6 and the cross bar 5 at its bottom.

[0037] In this embodiment, the column 4 is made of 120×120×3 (the unit is millimeter, and the length unit appearing below is all millimeter) square steel tube, and the crossbar 5 is made of 80×80×3 square steel tube. The column 4 and the crossbar 5 are fixed into an L-shaped or straight frame by prefabrication welding; the connecting flange 7 is made of 220×220×10 steel plate and M16 bolts; the ladder 8 frame is prefabricated and welded with 80×80×3 square steel tube and ∠50 angle steel, the pedal is an anti-slip plate steel plate, and the outer layer protection is 10×10 dense mesh steel wire mesh. The first structural unit 1, the second structural unit 2 and the third structural unit 3 are directly transported to the backyard for standby use. The backyard mainly refers to the area of ​​materials or finished products that have been processed and prepared for the construction site. Prefabrication welding refers to the pre-processing and installation of parts in the factory or manufacturing plant, and then welding. This welding method is more efficient and precise because all prefabrication work can be carried out in a factory environment, and the welding quality can be precisely controlled to ensure that the weld quality meets the standards, reduce welding work on construction sites, avoid harm to the environment and workers caused by on-site welding, reduce on-site construction time and labor costs, and improve construction efficiency and standardization.

[0038] The working process of the assembled working platform provided with a ladder system of the utility model is as follows: the first structural unit 1, the second structural unit 2 and the third structural unit 3 are prefabricated and welded as a whole and then directly transported to the construction site. When the main structure of the cable tower 9 is constructed, the first structural unit 1, the second structural unit 2 and the third structural unit 3 are sequentially hoisted to the working position, and the first structural unit 1, the second structural unit 2 and the third structural unit 3 are fixedly connected by the connecting flange 7, such as Figure 6 , Figure 7 and Figure 8 As shown, as the construction height is raised, the first structural unit 1, the second structural unit 2 and the third structural unit 3 can be hoisted and fixed. If the construction project is provided with a cap beam, the cap beam will extend outward beyond the enclosure of the working platform. At this time, it is only necessary to remove the connecting flange 7 on the third structural unit 3 to quickly remove the third structural unit 3, so as to facilitate the construction of the cap beam.

[0039] The utility model provides an assemblable work platform with a ladder system, which can realize rapid assembly construction, greatly improving the installation and disassembly efficiency and turnover utilization rate; compared with traditional platforms and ladders, the material input is reduced, the required accessories are reduced, and the cost is greatly saved; the structure is light and convenient for personnel to operate, shortening the construction period; the modularization degree of the components is high, and they can be assembled and used as a whole, or installed and used individually, and can be disassembled and adjusted according to the characteristics of the structure, and can be used for various piers and bridge towers Construction, foundation pit passages, etc., with good flexibility; good safety and stability, and high turnover utilization rate.

[0040] Components and structures not described in detail in the embodiments are well-known components and common structures or common means in the industry and are not described one by one here.

Claims

1. An assembled work platform provided with a ladder system, characterized in that: The invention comprises a first structural unit (1), a second structural unit (2) and a third structural unit (3) which are detachably fixedly connected in a U-shape, wherein the first structural unit (1) and the second structural unit (2) are both L-shaped, and the third structural unit (3) is I-shaped; the first structural unit (1), the second structural unit (2) and the third structural unit (3) all comprise a plurality of columns (4), a crossbar (5) and a platform (6), wherein the crossbar (5) is vertically fixed between two of the columns (4), and the platform (6) is arranged between the tops of the two columns (4); and the third structural unit (3) is also provided with a ladder (8) leading from the bottom of the column (4) to the platform (6).

2. The assembleable work platform provided with a ladder system according to claim 1, characterized in that: The first structural unit (1), the second structural unit (2) and the third structural unit (3) are fixed via a connecting flange (7), and the top and bottom of the column (4) are both provided with a connecting flange (7).

3. The assembleable work platform provided with a ladder system according to claim 1, characterized in that: The top and bottom of the upright post (4) are both provided with a crossbar (5).

4. The assembleable work platform provided with a ladder system according to claim 3, characterized in that: The bottom of the platform (6) is provided with a plurality of evenly spaced connecting rods (10), and the connecting rods (10) are vertically fixed between two cross rods (5) along the length direction.

5. The assembleable work platform provided with a ladder system according to claim 1, characterized in that: A railing is provided at the inner edge of the platform (6), and a protective net is provided at the outer edge of the platform (6).

6. The assembleable work platform provided with a ladder system according to claim 1, characterized in that: The platform (6) is one or more patterned steel plates.

7. The assembleable work platform provided with a ladder system according to claim 1, characterized in that: An oblique rod (11) is also provided, and the oblique rod (11) is fixedly arranged obliquely between the upright column (4) and the cross rod (5), and the oblique rod (11), the upright column (4) and the cross rod (5) form a triangular structure.

8. The assembleable work platform provided with a ladder system according to claim 1, characterized in that: A plurality of the upright posts (4) and the crossbar (5) are prefabricated and welded into an integrated structure.

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