Fabricated safety channel for road and bridge construction

Abstract

The utility model discloses an assembly type safety channel for road and bridge construction. The assembly type safety channel comprises a first frame, a second frame, a walkway plate, a left step, a right step and connecting pieces. The walkway plate is horizontally placed and arranged between the first frame and the second frame, and the left step and the right step are symmetrically connected to the left side and the right side of the first frame and the second frame respectively. The first frame and the second frame are the same in structure, the first frame comprises two stand columns and a transverse rod located between the two stand columns, and a containing table is arranged on the stand columns. The four corners of the walkway plate are located above the containing table and then fixed to the containing table through fasteners. The left step and the right step are the same in structure, the right step comprises a support and a pedal, the support is formed by horizontally and vertically splicing square tubes, and the free ends of the horizontally-arranged square tubes are fixed to the stand columns of the frame through corner connectors. The assembly type safety channel for road and bridge construction is simple and convenient in assembly technology, and the disassembled components are easy to transfer.

Description

TECHNICAL FIELD

[0001] The utility model relates to a safety passage, in particular to an assembly type safety passage for road and bridge construction. BACKGROUND

[0002] The bridge with left and right width separation is provided with a guardrail on the inner side, and the guardrail is in the state of vertical steel before being poured and formed, and the construction personnel needs to use the safety passage when passing through the left and right width of the bridge. The safety passage generally comprises the staircases on both sides and the walkway in the middle, the staircases on both sides are respectively supported on the bridge deck of the left and right width, the walkway is across the top of the steel, and the construction personnel reaches the other width of the bridge by walking on the walkway from one staircase and walking down from the other staircase. For example, the patent document CN 207347923 U (application number 201721329777.8) discloses a safety staircase for walking across the guardrail, which has a cross passage, the cross passage is connected with the staircases on both sides, the staircase comprises a main framework, the main framework is connected with the staircase steps on the side, the staircase platform is arranged above the main framework, the guardrails are arranged on both sides of the staircase platform and the staircase steps, the connecting bolts connecting the cross passage and the staircase are arranged between the cross passage and the staircase, the cross passage has a walkway, the walkway guardrails are arranged on both sides of the walkway, and the warning signs are fixedly arranged on the walkway guardrails.

[0003] Generally, the safety stair or safety passage is a one-piece integrally formed by welding, and the transportation of the one-piece is difficult. In order to solve the problem, the Chinese patent document CN214532099U (application number 202120401858.4) discloses a folding safety passage for highway bridge construction, which comprises a stair platform, left and right staircases arranged at the left and right ends of the stair platform, the left and right staircases each comprise a staircase frame arranged symmetrically, one end of the staircase frame close to the stair platform is hingedly arranged with the stair platform, the staircase frame of the left staircase is arranged outside the staircase frame of the right staircase, the other end of the staircase frame away from the stair platform is provided with a base, the base is fixedly connected with the staircase frame by bolts, a step is arranged on the same side of the staircase frame, and the step is detachably fixed on the staircase frame. For example, the Chinese patent document CN218952729U (application number 202223174496.3) discloses a safety passage for highway bridge central median strip construction, which comprises a staircase and a step, the staircase is divided into a left staircase and a right staircase, two upright columns are fixedly installed on the right side of the left staircase, two upright columns are fixedly installed on the left side of the right staircase, a protection assembly is installed on the left upright column, the left end of the right staircase is rotatably connected with the right end of the step, the left end of the step is fixedly installed with a first connecting plate, the right end of the left staircase is fixedly installed with a second connecting plate for contacting the first connecting plate, and the first connecting plate and the second connecting plate are fixed by bolts. The whole device can be separated, the left staircase and the right staircase can be separated when disassembled, and the installation and disassembly are more convenient, and the staircase and the step can be installed after the central isolation strip reinforcement is installed. Practical new type content

[0004] The technical problem to be solved by the utility model is to provide an assembled safety passage for road and bridge construction which is convenient to assemble.

[0005] The technical scheme for achieving the utility model is an assembled safety passage for road and bridge construction, comprising a first frame, a second frame, a walkway plate, a left staircase, a right staircase and a connecting piece; the first frame and the second frame are symmetrically placed, the walkway plate is horizontally placed and arranged between the first frame and the second frame, and the left staircase and the right staircase are symmetrically connected to the left side and the right side of the first frame and the second frame respectively.

[0006] The first frame and the second frame are of the same structure, the first frame comprises two upright columns and a horizontal rod between the two upright columns, a placing table is arranged on each upright column, and the placing table of each upright column faces the inside direction between the first frame and the second frame; four corners of the walkway plate are located above the placing tables, and then the walkway plate is fixed with the placing tables by fasteners.

[0007] The left ladder and the right ladder have the same structure, and the right ladder comprises a support and a step, the support is obtained by horizontally and vertically splicing square tubes, and the free end of the horizontally placed square tube is fixed to the column of the frame through an angle code.

[0008] The four corners of the walkway plate respectively comprise a notch, and the size of the notch should be such that the corner of the walkway plate can be placed in close contact with the column.

[0009] The two columns of the first frame form a rectangle with the horizontal rod and the lower end being open.

[0010] Optionally, the first frame is further provided with a handrail, and the handrail is located between the horizontal rod and the placing table.

[0011] When the ladder is connected to the column, taking the right ladder as an example, when the front square tube of the right ladder is fixed to the column of the first frame, the front end surface of the square tube is in close contact with the surface of the column, then one plate of the angle code is in close contact with the column, and the other plate is in close contact with the upper surface or the lower surface of the square tube, and the two are respectively fixed by fasteners.

[0012] Optionally, the column of the frame is provided with a plug-in interface, and after the plug-in interface is plugged with the square tube of the ladder, the column is fixed by the angle code.

[0013] Optionally, one, two or three placing tables are arranged in the up-down direction of each column.

[0014] The road and bridge construction assembly type safety passage assembly technique of the utility model has the positive effect that: the first frame and the second frame are symmetrically placed when the safety passage is assembled, the column of the frame is perpendicular to the ground, the four corners of the walkway plate are respectively placed on the four placing tables of the first frame and the second frame, and the walkway plate and the placing table are fixed by fasteners; then the left ladder, the right ladder and the column are connected by the angle code, and the assembly of the safety passage is completed; if the safety passage needs to be disassembled, the left ladder, the right ladder and the column are separated first, and then the walkway plate and the first frame and the second frame are separated, and the disassembly is completed; therefore, the assembly and disassembly are simple and convenient, and the first frame, the second frame, the walkway plate, the left ladder and the right ladder are easy to transport after disassembly. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model discloses a safety passage assembly schematic diagram.

[0016] Figure 2 It is Figure 1 The first frame in the enlarged schematic view after being turned over 180 DEG.

[0017] The marks in the above drawings are as follows:

[0018] First frame 1, stand 1-1, crossbar 1-2, railing 1-3, placing table 1-4, plug interface 1-5, second frame 2, walkway plate 3, notch 3-1, left ladder 4, right ladder 5, bracket 5-1, tread 5-2, corner code 6. DETAILED DESCRIPTION

[0019] The following describes some of the multiple possible embodiments of the utility model, which aims to provide a basic understanding of the utility model, and is not intended to identify the key or decisive elements of the utility model or limit the scope of protection. It is easy to understand that according to the technical scheme of the utility model, those skilled in the art can propose other implementation manners which can be replaced with each other without changing the essential spirit of the utility model. Therefore, the following specific embodiments are only exemplary description of the technical scheme of the utility model, and should not be regarded as the whole or regarded as the limitation or restriction of the technical scheme of the utility model.

[0020] (Embodiment 1)

[0021] See Figure 1 And Figure 2 The assembly type safety passage for road and bridge construction of the embodiment includes a first frame 1, a second frame 2, a walkway plate 3, a left ladder 4, a right ladder 5 and a connecting piece. The first frame 1 and the second frame 2 are placed vertically in parallel, the walkway plate 3 is horizontally placed and detachably fixed between the first frame 1 and the second frame 2, and the left ladder 4 and the right ladder 5 are respectively connected to the left side and the right side of the first frame 1 and the second frame 2.

[0022] The first frame 1 and the second frame 2 are the same in structure, and the first frame 1 and the second frame 2 are placed symmetrically in the assembly type safety passage for road and bridge construction. The structure of the first frame 1 is introduced here.

[0023] The first frame 1 includes two stand columns 1-1 and a crossbar 1-2 located between the two stand columns 1-1, and the two stand columns 1-1 and the crossbar 1-2 form a long rectangle with an open lower end. A placing table 1-4 is arranged on the middle upper section of the stand column 1-1, and the arrangement position of the placing table 1-4 is determined according to the height of the walkway plate 3 of the safety passage, or according to the height of the lower steel bar. The placing table 1-4 is fixedly welded with the stand column 1-1.

[0024] In some embodiments, two or more, for example, three placing tables 1-4 can be arranged in the up-down direction of each stand column 1-1 to adapt to different heights of the lower steel bar; it should be noted that in order to ensure the levelness of the walkway plate 3, the upper surfaces of the placing tables 1-4 of each layer of the four stand columns are on the same plane.

[0025] The first frame 1 can also be provided with a railing 1-3, which is generally located between the crossbar 1-2 and the middle of the placement table 1-4, and serves as a safety protection; as a further protection, a protective net can be additionally provided on the first frame 1.

[0026] After the first frame 1 and the second frame 2 are placed in a mirror image, all the placement tables 1-4 are directed inward, and the four corners of the walkway plate 3 are located above the placement tables 1-4, and then the walkway plate 3 and the placement tables 1-4 are fixed by bolts (not shown in the figure).

[0027] Further, the four corners of the walkway plate 3 respectively include a notch 3-1, and the size of the notch 3-1 should be such that the corners of the walkway plate 3 can be placed in close contact with the stand column 1-1.

[0028] The left staircase 4 and the right staircase 5 are symmetrically connected to the left side and the right side of the first frame 1 and the second frame 2, and the left staircase 4 and the right staircase 5 have the same structure, and in this embodiment, the structure of the right staircase 5 is introduced as an example.

[0029] The right staircase 5 includes a support 5-1 and a step plate 5-2, and the step plate 5-2 is horizontally fixed above the support 5-1, and a plurality of step plates 5-2 are arranged in a stepped manner.

[0030] The support 5-1 of the right staircase 5 is obtained by horizontally and vertically splicing square tubes, and the free end of the horizontally placed square tube is fixed with the stand column of the frame by an angle code 6. For example, when the front square tube of the right staircase 5 is fixed with the stand column 1-1 of the first frame 1, the front end surface of the square tube is in close contact with the surface of the stand column 1-1, and then one plate of the angle code 6 is in close contact with the stand column 1, and the other plate is in close contact with the upper surface or the lower surface of the square tube, and they are fixed by bolts or screws, respectively. The connection mode of the other square tubes with the stand column is the same as the above connection mode. In addition to using the angle code for connection, a flange plate can also be provided at the free end of the horizontally placed square tube, and the flange plate is fixed with the stand column by bolts. The aforementioned stand column, square tube and angle code are all pre-drilled.

[0031] In addition, if the uppermost step plate 5-2 is not supported between the uppermost step plate 5-2 and the step plate below it, the upper and lower surfaces of the uppermost step plate 5-2 are connected with the stand column by an angle code 6.

[0032] In summary, in assembling the safety passageway, first, the first frame 1 and the second frame 2 are symmetrically placed, the uprights of the frames are perpendicular to the ground, the four corners of the walkway plate 3 are respectively placed on the four placing tables 1-4 of the first frame 1 and the second frame 2, and the walkway plate 3 is fixed with the placing tables by bolts; then the left ladder 4 and the right ladder 5 are connected with the uprights by angle codes, that is, the assembly of the safety passageway is completed; if the safety passageway needs to be disassembled, first, the left ladder 4 and the right ladder 5 are separated from the uprights, and then the walkway plate 3 is separated from the first frame 1 and the second frame 2, that is, the disassembly is completed; therefore, the assembly and disassembly are simple and convenient, and the first frame 1, the second frame 2, the walkway plate 3, the left ladder 4 and the right ladder 5 are easy to transfer after disassembly.

[0033] (Example 2)

[0034] The rest of the assembled safety passageway for road and bridge construction in this example is the same as in Example 1, except that the uprights of the frame are provided with plug-in interfaces 1-5, and after the plug-in interfaces 1-5 are plugged into the horizontal pipes of the ladders, they are fixed with angle codes, which can further improve the stability.

Claims

1. A prefabricated safety passage for road and bridge construction, characterized in that: The utility model provides a kind of staircase, including first frame (1), second frame (2), walkway board (3), left stair (4), right stair (5) and connecting piece;First frame (1) and second frame (2) are symmetrically placed, walkway board (3) is horizontally placed and is arranged between first frame (1) and second frame (2), left stair (4), right stair (5) are respectively symmetrically connected at the left side and the right side of first frame (1) and second frame (2); The first frame (1) and the second frame (2) are the same structure, the first frame (1) includes two columns (1-1) and a crossbar (1-2) between the two columns (1-1), the column (1-1) is provided with a placement platform (1-4), and each column placement platform (1-4) faces the inside direction between the first frame (1) and the second frame (2); The four corners of the walkway board (3) are above the placement platform (1-4), and then fixed with the placement platform (1-4) with fasteners; The left stair (4) and the right stair (5) are the same structure, the right stair (5) includes a bracket (5-1) and a step (5-2), the bracket (5-1) is obtained by horizontally and vertically splicing square tubes, and the free end of the horizontally placed square tube is fixed with the column of the frame.

2. The prefabricated safety access way for road and bridge construction according to claim 1, characterized in that: The four corners of the walkway board (3) respectively include a notch (3-1), and the size of the notch (3-1) should be such that the corners of the walkway board (3) can be placed in close contact with the column (1-1).

3. The prefabricated safety access way for road and bridge construction according to claim 1, characterized in that: The two columns (1-1) and the crossbar (1-2) of the first frame (1) form a rectangle with an open lower end.

4. The prefabricated safety access way for road and bridge construction according to claim 3, characterized in that: The first frame (1) is also provided with a railing (1-3) between the crossbar (1-2) and the placement platform (1-4).

5. The prefabricated safety access way for road and bridge construction of claim 1, wherein: When the front square tube of the right stair (5) is fixed with the column (1-1) of the first frame (1), the front end face of the square tube is in close contact with the surface of the column (1-1), then one plate of the corner code (6) is in close contact with the column (1-1), the other plate is in close contact with the upper surface or the lower surface of the square tube, and is fixed with fasteners respectively.

6. The prefabricated safety access way for road and bridge construction of claim 1, wherein: The column of the frame is provided with a plug-in interface (1-5), which is plugged into the square tube of the stair, and then fixed with the corner code.

7. The prefabricated safety access way for road and bridge construction of claim 1, wherein: One, two or three placement platforms (1-4) are arranged in the up-down direction of each column (1-1).

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