Edge protection guardrail for steel structure bridge construction

Abstract

The utility model provides a steel structure bridge construction edge protection guardrail which comprises a main connecting seat and a guardrail rod body assembled on the main connecting seat, the main connecting seat comprises a first connecting plate and a second connecting plate which are vertically arranged, and a locking bolt is arranged on the second connecting plate; the inner supporting plate is connected to the inner right-angle face, and the locking plate slides on the inner supporting plate; a clamping area is formed between the second connecting plate and the inner supporting plate, the main connecting base is connected with the steel structure bridge in a clamped mode with the help of the locking bolt and the inner supporting plate, and when the main connecting base is clamped to the steel structure bridge, the locking plate acts on the steel structure bridge through movement of the sliding frame. The main connecting seat and the locking plate provided by the utility model can be converted to meet the assembly requirement of a steel box beam or a composite beam, so that the application range of equipment is widened.

Description

A steel structure bridge construction edge protection railing Technical Field

[0001] This utility model belongs to the technical field of edge protection railings, and in particular relates to an edge protection railing for steel structure bridge construction. Background Technology

[0002] Steel structure bridges are bridges whose main load-bearing structures are made of steel. In the construction of steel structure bridges, the main structure is mainly composed of steel box girder structures or composite beam structures. Composite beams generally form a T-shaped structure between the bridge deck and web at the side edges, while steel box girder structures form an inverted L-shaped structure between the bridge deck and web at the side edges.

[0003] During the construction of steel structure bridges, it is generally necessary to install edge protection railings to prevent accidents at the edges of the steel structure bridge. Usually, edge protection railings consist of a structural base connected to the steel structure bridge and railings. However, currently, most structural bases connected to steel structure bridges can only be assembled with one of the steel box girder structures or composite beam structures, which has poor applicability and cannot meet diverse needs. Summary of the Invention

[0004] This utility model provides a protective railing for the edge of a steel bridge construction site, aiming to solve the problem that current protective railings consist of a structural base and railings connected to the steel bridge structure. However, most of the structural bases currently connected to steel bridge structures can only be assembled with one of the structures, either a steel box girder structure or a composite beam structure, resulting in poor applicability and inability to meet diverse needs.

[0005] This utility model is implemented as follows: a protective railing for the edge of a steel structure bridge construction project, comprising:

[0006] The main connecting seat and the guardrail body assembled on the main connecting seat, the main connecting seat includes a first connecting plate and a second connecting plate arranged vertically, the second connecting plate is provided with locking bolts; the outer wall of the main connecting seat is an outer right angle surface, the inner wall of the main connecting seat is an inner right angle surface; both the outer right angle surface and the inner right angle surface are provided with connecting seats for fixing the guardrail body;

[0007] An inner support plate and a locking plate are provided. The inner support plate is connected to an inner right-angled surface. The inner support plate includes a guide frame and an adjusting screw. The locking plate includes a limiting plate and a sliding frame. One end of the sliding frame extends into the interior of the guide frame and is assembled and connected to the adjusting screw. The limiting plate is located at the end of the sliding frame located outside the guide frame.

[0008] The second connecting plate and the inner support plate form a locking area. With the help of the locking bolt of the main connecting seat and the inner support plate, the main connecting seat is locked and connected to the steel structure bridge. When the main connecting seat is locked to the steel structure bridge, the limiting plate acts on the steel structure bridge through the movement of the sliding frame.

[0009] Preferably, the sliding frame is U-shaped, and the guide frame is inserted into the guide hole provided on the sliding frame from the open side of the sliding frame. The traction slider is also provided on the open side of the sliding frame, and the traction slider is threadedly connected to the adjusting screw.

[0010] Preferably, the limiting plate is provided with two sets of limiting screw holes, and the end of the sliding frame away from the traction slider is provided with an end face fixing screw hole group. The end face fixing screw hole group consists of several sets of irregularly arranged screw holes, and the limiting screw hole group is adapted to the end face fixing screw hole group.

[0011] Preferably, when the limiting plate is assembled through different limiting screw hole groups, it extends into different side walls of the sliding frame.

[0012] Preferably, a connecting rod is further provided between the sliding frames, and the connecting rod is located on the part of the sliding frame that does not extend into the guide frame.

[0013] Preferably, the second connecting plate is provided with a locking screw hole for accommodating a locking bolt.

[0014] Compared with the prior art, the embodiments of this application have the following main advantages:

[0015] The steel structure bridge construction edge protection railing provided by this utility model meets the fixing requirements of the railing body in the steel box girder or composite beam through the main connecting seat and two sets of connecting seats. The clamping area between the inner support plate and the second connecting plate is fixedly connected to the steel box girder or composite beam. The locking plate enhances the connection strength in the connection process of different steel structure bridges through its own adjustable structure, and enhances the connection strength between the main connecting seat and the steel structure bridge. In this way, it can realize the transformation form to meet the assembly needs of steel box girder or composite beam, and improve the applicability of the equipment. Attached Figure Description

[0016] Figure 1 is a structural schematic diagram of a steel structure bridge construction edge protection railing provided by this utility model.

[0017] Figure 2 is a schematic diagram of the main connecting seat structure of a steel structure bridge construction edge protection railing provided by this utility model.

[0018] Figure 3 is a schematic diagram of the locking plate structure of a steel structure bridge construction edge protection railing provided by this utility model.

[0019] Figure 4 is a structural schematic diagram of the composite beam in a steel structure bridge construction edge protection railing provided by this utility model.

[0020] Figure 5 is a schematic diagram of the connection structure between the edge protection railing and the steel box girder of a steel structure bridge construction provided by this utility model.

[0021] Figure 6 is a schematic diagram of the internal structure of the inner support plate of a steel structure bridge construction edge protection railing provided by this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100. Main connecting seat; 101. Outer right-angled surface; 102. Inner right-angled surface; 110. First connecting plate; 120. Second connecting plate; 130. Connecting seat; 140. Locking screw hole; 200. Inner support plate; 210. Adjusting screw; 220. Guide frame; 230. Guide insertion hole; 300. Locking plate; 301. End face fixing screw hole group; 302. Limiting screw hole group; 303. Traction screw hole; 310. Limiting plate; 320. Sliding frame; 330. Connecting rod; 340. Traction slider; 400. Locking bolt. Detailed Implementation

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] This utility model embodiment provides a protective railing for the edge of a steel structure bridge construction site, as shown in Figures 1-6. The protective railing for the edge of a steel structure bridge construction site includes:

[0027] The main connecting seat 100 and the guardrail body assembled on the main connecting seat 100, the main connecting seat 100 includes a first connecting plate 110 and a second connecting plate 120 arranged vertically, the second connecting plate 120 is provided with a locking bolt 400; the second connecting plate 120 is provided with a locking screw hole 140 for accommodating the locking bolt 400, the locking bolt 400 is assembled in the locking screw hole 140;

[0028] The outer wall of the main connecting seat 100 is an outer right-angled surface 101, and the inner wall of the main connecting seat 100 is an inner right-angled surface 102. Both the outer right-angled surface 101 and the inner right-angled surface 102 are provided with connecting seats 130 for fixing the guardrail body. Here, the connecting seat 130 on the inner right-angled surface 102 is located on the first connecting plate 110, and the connecting seat 130 on the outer right-angled surface 101 is located on the second connecting plate 120.

[0029] An inner support plate 200 and a locking plate 300 are provided. The inner support plate 200 is connected to the inner right-angle surface 102. The inner support plate 200 includes a guide frame 220, a limiting plate 310 connected to the guide frame 220, and an adjusting screw 210. The locking plate 300 includes a limiting plate 310 and a sliding frame 320. One end of the sliding frame 320 extends into the interior of the guide frame 220 and is assembled and connected to the adjusting screw 210. The limiting plate 310 is located at the end of the sliding frame 320 located outside the guide frame 220. A locking area is formed between the second connecting plate 120 and the inner support plate 200. With the help of the locking bolt 400 of the main connecting seat 100 and the inner support plate 200, the steel structure bridge is locked and connected.

[0030] When the main connecting seat 100 is connected to the composite beam, the inner support plate 200 is arranged parallel to the bridge deck of the composite beam and abuts against the side of the bridge deck near the ground. The locking bolt 400 passes through the second connecting plate 120 and abuts against the side of the bridge deck away from the ground. The limiting plate 310 abuts against the side of the bridge deck away from the ground. The guardrail body is fixed in the connecting seat 130 on the outer right angle surface 101. At this time, the guardrail body is arranged perpendicular to the inner support plate 200. The inner support plate 200 obtains vertical tensile support through the locking plate 300, providing a connection effect with the composite beam.

[0031] When the main connecting seat 100 is engaged with the steel box girder for connection, the inner support plate 200 is arranged parallel to the web of the steel box girder and abuts against the outer wall of the web of the steel box girder. The locking bolt 400 passes through the second connecting plate 120 and abuts against the inner wall of the web of the steel box girder. The limiting plate 310 abuts against the bridge deck of the steel box girder. The guardrail body is fixed to the connecting seat 130 on the inner right angle surface 102. At this time, the guardrail body is arranged parallel to the inner support plate 200. The locking plate 300 helps the inner support plate 200 to share the bearing pressure and transfer the bearing pressure of the support plate 200 to the steel box girder, reducing the risk of slippage of the inner support plate 200.

[0032] In this embodiment, the main connecting seat 100 meets the fixing requirements of the guardrail body in the steel box girder or composite beam through two sets of connecting seats 130. The clamping area between the inner support plate 200 and the second connecting plate 120 is fixedly connected to the steel box girder or composite beam. The locking plate 300 enhances the connection strength in the connection process of different steel structure bridges through its own adjustable structure, thereby enhancing the connection strength between the main connecting seat 100 and the steel structure bridge.

[0033] In this embodiment, the guardrail body adopts an existing guardrail, and the connecting seat 130 is a cylindrical structure with one end being an open structure to facilitate the insertion of the guardrail body, while the other end is fixedly connected to the main connecting seat 100. The guardrail body and the connecting seat 130 are fixedly connected by bolts.

[0034] In a preferred embodiment of this invention, the sliding frame 320 has a U-shaped structure. The guide frame 220 is inserted into the sliding frame 320 through a guide hole 230 on the open side of the sliding frame 320. A traction slider 340 is also provided on the open side of the sliding frame 320, and the traction slider 340 is threadedly connected to the adjusting screw 210. The threaded connection principle between the traction slider 340 and the adjusting screw 210 is similar to that of a lead screw structure. Here, the traction slider 340 moves along the inner wall of the guide frame 220 under the rotation of the adjusting screw 210, thereby pulling the sliding frame 320 to extend outward or retract inward.

[0035] A connecting rod 330 is also provided between the sliding frames 320. The connecting rod 330 is provided in the part of the sliding frame 320 that does not extend into the guide frame 220. The connecting rod 330 helps to enhance the support strength between the sliding frames 320.

[0036] In this embodiment, one end of the adjusting screw 210 extends into a guide frame 220. The guide frame 220 is provided with a bearing for limiting the adjusting screw 210. With the help of the bearing, the adjusting screw 210 rotates. Its principle is the same as that of the existing lead screw technology. It should be noted that the end of the adjusting screw 210 extending into the guide frame 220 is the adjusting end, which can be rotated and adjusted by tools.

[0037] In a preferred embodiment of this invention, the limiting plate 310 is provided with two sets of limiting screw hole groups 302, and the sliding frame 320 is provided with an end face fixing screw hole group 301 at the end away from the traction slider 340. The end face fixing screw hole group 301 is composed of several sets of irregularly arranged screw holes, and the limiting screw hole group 302 is also composed of a set of irregularly arranged screw holes. The limiting screw hole group 302 is adapted to the end face fixing screw hole group 301.

[0038] In this embodiment, the limiting plate 310 extends into different sidewalls of the sliding frame 320 when assembled using different limiting screw hole groups 302. This is primarily to prevent interference with the structure while ensuring the limiting plate 310 provides a suitable functional effect, and to avoid interference between structures when assembled using different limiting screw hole groups 302. For example, when the main connecting seat 100 is engaged with the steel box girder for connection, the limiting plate 310 extends from the sidewall of the sliding frame 320 near the second connecting plate 120, forming a semi-enclosed effect on the clamping area. In the composite beam connection method, the limiting plate 310 extends from the sidewall of the sliding frame 320 away from the second connecting plate 120, preventing the limiting plate 310 from interfering with the bridge deck of the composite beam and preventing the guide frame 220 from fitting against the bridge deck of the composite beam. Here, after the limiting plate 310 extends from one side of the sliding frame 320, the other side remains flush with the sliding frame 320.

[0039] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A protective railing for the edge of a steel structure bridge during construction, characterized in that, include: The main connecting seat (100) and the guardrail body assembled on the main connecting seat (100) are provided. The main connecting seat (100) includes a first connecting plate (110) and a second connecting plate (120) arranged vertically. The second connecting plate (120) is provided with locking bolts (400). The outer wall of the main connecting seat (100) is an outer right angle surface (101), and the inner wall of the main connecting seat (100) is an inner right angle surface (102). Both the outer right angle surface (101) and the inner right angle surface (102) are provided with connecting seats (130) for fixing the guardrail body. The main connecting seat (100) includes an inner support plate (200) and a locking plate (300). The inner support plate (200) is connected to the inner right angle surface (102). The inner support plate (200) includes a guide frame (220) and a locking plate (300). The adjusting screw (210) and the locking plate (300) include a limiting plate (310) and a sliding frame (320). One end of the sliding frame (320) extends into the interior of the guide frame (220) and is assembled and connected to the adjusting screw (210). The limiting plate (310) is located at the end of the sliding frame (320) located outside the guide frame (220). The second connecting plate (120) and the inner support plate (200) form a locking area. With the help of the locking bolt (400) of the main connecting seat (100) and the inner support plate (200), the main connecting seat (100) is locked and connected to the steel structure bridge. When the main connecting seat (100) is locked to the steel structure bridge, the limiting plate (310) moves and acts on the steel structure bridge through the sliding frame (320).

2. The edge protection railing for steel structure bridge construction as described in claim 1, characterized in that, The sliding frame (320) is shaped like a c-shaped structure. The guide frame (220) is inserted into the guide hole (230) provided on the sliding frame (320) on one side of the opening. The sliding frame (320) is also provided with a traction slider (340) on one side of the opening. The traction slider (340) is threadedly connected to the adjusting screw (210).

3. The edge protection railing for steel structure bridge construction as described in claim 2, characterized in that, The limiting plate (310) is provided with two sets of limiting screw hole groups (302). The sliding frame (320) is provided with an end face fixing screw hole group (301) at one end away from the traction slider (340). The end face fixing screw hole group (301) is composed of several sets of irregularly arranged screw holes. The limiting screw hole group (302) is adapted to the end face fixing screw hole group (301).

4. The edge protection railing for steel structure bridge construction as described in claim 3, characterized in that, When the limiting plate (310) is assembled through different limiting screw hole groups (302), it extends into different side walls of the sliding frame (320).

5. The edge protection railing for steel structure bridge construction as described in claim 4, characterized in that, A connecting rod (330) is also provided between the sliding frames (320), and the connecting rod (330) is provided on the part of the sliding frame (320) that does not extend into the guide frame (220).

6. The edge protection railing for steel structure bridge construction as described in claim 5, characterized in that, The second connecting plate (120) is provided with a locking screw hole (140) for accommodating a locking bolt (400).

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