Steel box girder bridge deck hole edge protection structure

Abstract

The utility model relates to a steel box girder bridge deck hole edge protection structure, which belongs to the technical field of bridge construction safety and comprises a first protective fence, a second protective fence is arranged on the outer side of the first protective fence, and protective nets are fixedly connected in the first protective fence and the second protective fence. Compared with the prior art, the warning device has the advantages that by arranging the warning mechanism, pedestrians at night can be warned, the situation that the pedestrians fall into the steel box girder due to the fact that the distance is black at night is avoided, the sleeve pieces are inserted into the corresponding clamping grooves, the long screw penetrates through the two sleeve pieces and one connecting piece, then the long screw is rotated, and the steel box girder can be conveniently and rapidly warned. By means of the design, connection and disassembly of the first protective fences and the second protective fences on the adjacent sides can be conveniently achieved, the construction efficiency is improved, meanwhile, the first protective fences and the second protective fences which are disassembled are integrated, carrying and storage are convenient, and the occupied area during storage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction safety, in particular to a steel box girder bridge deck opening edge protection structure. Background Technique

[0002] With the development of steel structure technology, steel box girders have been widely used in the design and construction of bridges. During the installation and construction of steel box girders, in addition to external welding and painting, workers need to enter the box chambers inside the steel box girders for structural welding and painting. Since workers need to enter the inside of the steel box girders for welding and painting operations, holes need to be opened on the steel box girder bridge deck, and the holes should meet the needs of workers to move up and down.

[0003] Due to the high height of the steel box girder, the visibility is poor during night construction. There are great safety hazards at the openings of the steel box girder bridge deck. There may be a situation where workers fall into the inside of the steel box girder. In the past, a warning line was used for protection, but the warning line is easily damaged and can only play a warning role without actual protection. In some bridge construction areas, steel plates or sheets are directly used. Some steel plates and sheets are integrated and are difficult to disassemble and carry. They not only occupy a large storage area but also are very inconvenient for manual handling.

[0004] Therefore, there is an urgent need for a new type of steel box girder bridge deck opening edge protection structure to solve the above problems. Content of the Utility Model

[0005] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a steel box girder bridge deck opening edge protection structure.

[0006] The technical solution of the utility model is as follows: A steel box girder bridge deck opening edge protection structure includes a first protective railing. A second protective railing is arranged outside the first protective railing. Protective nets are fixedly connected inside both the first protective railing and the second protective railing. Two connecting pieces are fixedly connected to the outside of the second protective railing. Kits cooperating with the connecting pieces are fixedly connected to the side of the first protective railing close to the second protective railing. Clamping grooves are formed inside the connecting pieces, and the clamping grooves are clamped with the corresponding kits. Round grooves are formed inside the kits. An internal thread groove is formed inside one of the connecting pieces and below the clamping groove. A long screw rod is inserted between the two connecting pieces, and the long screw rod passes through the inside of the round grooves. The bottom end of the long screw rod is threadedly connected to the internal thread groove. Widening mechanisms are arranged at the bottom ends of the first protective railing and the second protective railing. Warning mechanisms are arranged on the outside of the first protective railing and the second protective railing. An adjusting mechanism is arranged between the first protective railing and the second protective railing.

[0007] By adopting the above technical solution, insert the kit into the corresponding clamping groove, and use a long screw rod to penetrate through two kits and a connecting piece. Then rotate the long screw rod to lock the internal thread groove and the long screw rod, so as to fix the first guardrail and the second guardrail adjacent to it. Through this design, the connection and disassembly of multiple first guardrails and the second guardrails adjacent to them can be conveniently realized, improving the construction efficiency.

[0008] As a preferred implementation manner, the widening mechanism includes an installation groove two opened inside the first guardrail and the second guardrail. An L-shaped clamping plate is slidably connected inside the installation groove two. Installation grooves one are opened on both sides of the first guardrail and the second guardrail. Bottom plates are hinged to the inner walls of the installation grooves one, and the outer sides of the L-shaped clamping plate and the bottom plates are in contact with each other.

[0009] By adopting the above technical solution, by pulling the L-shaped clamping plate upward, the locking of the bottom plate can be released, so that the bottom plates on both sides of the first guardrail and the second guardrail adjacent to it are unfolded, so as to increase the contact area between the bottoms of the first guardrail and the second guardrail and the bridge construction area, and improve the overall stability of the first guardrail and the second guardrail.

[0010] As a preferred implementation manner, the warning mechanism includes a reflective strip fixedly connected to one side of the first guardrail and the second guardrail. Warning lights are fixedly installed at the tops of the outer sides of the first guardrail and the second guardrail. Storage batteries for supplying power to the warning lights are embedded inside the first guardrail and the second guardrail.

[0011] By adopting the above technical solution, through the reflective strip and the warning lights, pedestrians and workers at night can be reminded, improving the safety of the device when used at night.

[0012] As a preferred implementation manner, the adjusting mechanism includes an adjusting plate fixedly connected to the outside of the first guardrail. An installation groove three for cooperating with the adjusting plate is opened inside the second guardrail, and the inner wall of the installation groove three is slidably connected to the corresponding adjusting plate.

[0013] By adopting the above technical solution, through the cooperation of the installation groove three and the adjusting plate, the adjusting plate hidden inside the second guardrail can be pulled out according to the actual protection situation, so as to increase the overall length of the first guardrail and the second guardrail and reduce the handling quantity of the first guardrail and the second guardrail.

[0014] As a preferred implementation manner, mounting seats are fixedly connected to the outer sides of the first guardrail and the second guardrail, and two mounting holes are opened inside the bottom plates.

[0015] By adopting the above technical solution, the bottom of this structure is firmly connected to the steel box girder bridge deck through expansion bolts and chemical anchor bolts, ensuring the stability of the entire protection structure.

[0016] As a preferred embodiment, the first guardrail and the second guardrail are made of aluminum alloy as a whole, and the guard net is a high-strength plastic net.

[0017] By adopting the above technical solution, the guard net is made of flexible materials such as high-strength plastic nets, which can not only effectively prevent people and objects from falling, but also adapt to a certain deformation, improving the durability of the overall structure.

[0018] As a preferred embodiment, a convenient-to-use pull ring is fixedly connected to the top of the long screw.

[0019] By adopting the above technical solution, it is convenient to use the long screw.

[0020] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0021] 1. In the present utility model, the kit is inserted into the corresponding clamping groove, and the long screw is passed through two kits and a connecting piece. Subsequently, the long screw is rotated so that the internal thread groove and the long screw are locked, thereby being able to fix the first guardrail and the second guardrail adjacent to it. Through this design, the connection and disassembly of multiple first guardrails and the second guardrails adjacent to them can be conveniently realized, improving the construction efficiency. At the same time, the disassembled first guardrail and the second guardrail are a whole, which is convenient for handling and storage, reducing the occupied area during storage.

[0022] 2. In the present utility model, by pulling the L-shaped clamping plate upward, the locking of the bottom plate can be released, enabling the bottom plates on both sides of the first guardrail and the second guardrail adjacent to it to be unfolded, so as to increase the contact area between the bottom of the first guardrail and the second guardrail and the bridge construction area, improving the overall stability of the first guardrail and the second guardrail. And the bottom of this structure is fixedly connected to the steel box girder bridge deck through expansion bolts and chemical anchor bolts to ensure the stability of the entire protection structure. The guard net is made of flexible materials, which can not only effectively prevent people and objects from falling, but also adapt to a certain deformation, improving the durability of the overall structure.

[0023] 3. In the present utility model, through the setting of the warning mechanism, it can play an important warning role for pedestrians at night, avoiding the situation of falling into the inside of the steel box girder due to the darkness of the night journey. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the overall three-dimensional view of the present utility model;

[0025] Figure 2 is the structural schematic diagram of the connecting piece and the kit of the present utility model;

[0026] Figure 3 is the structural schematic diagram of the adjustment mechanism of the present utility model;

[0027] Figure 4 For the present utility model Figure 1 is an enlarged view of part A in the figure.

[0028] Legend: 1. First guardrail; 2. Second guardrail; 3. First installation groove; 4. Bottom plate; 5. Second installation groove; 6. L-shaped clamping plate; 7. Mounting seat; 8. Protection net; 9. Reflective strip; 10. Warning light; 11. Adjusting plate; 12. Connecting piece; 13. Kit; 14. Circular groove; 15. Long screw; 16. Clamping groove; 17. Third installation groove; 18. Internal thread groove. Specific implementation manners

[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0030] Referring to Figures 1-4 , a steel box girder bridge deck opening edge protection structure includes a first guardrail 1. A second guardrail 2 is arranged outside the first guardrail 1. Protection nets 8 are fixedly connected inside both the first guardrail 1 and the second guardrail 2. Two connecting pieces 12 are fixedly connected to the outside of the second guardrail 2. Kits 13 that cooperate with the connecting pieces 12 are fixedly connected to one side of the first guardrail 1 close to the second guardrail 2. Clamping grooves 16 are formed inside the connecting pieces 12, and the clamping grooves 16 are clamped with the corresponding kits 13. Circular grooves 14 are formed inside the kits 13. An internal thread groove 18 is formed below the clamping groove 16 inside one of the connecting pieces 12. A long screw 15 is inserted between the two connecting pieces 12. The long screw 15 passes through the inside of the circular groove 14, and the bottom end of the long screw 15 is threadedly connected to the internal thread groove 18. Widening mechanisms are arranged at the bottom ends of the first guardrail 1 and the second guardrail 2. Warning mechanisms are arranged on the outside of the first guardrail 1 and the second guardrail 2. An adjusting mechanism is arranged between the first guardrail 1 and the second guardrail 2.

[0031] During use, through the setting of the warning mechanism, it can play an important warning role for pedestrians at night, avoiding the situation of falling into the inside of the steel box girder due to the darkness of the night journey. Insert the kit 13 into the corresponding clamping groove 16, and use the long screw 15 to penetrate through two kits 13 and a connecting piece 12. Then rotate the long screw 15 to lock the internal thread groove 18 with the long screw 15, so as to fix the guardrail 1 and the adjacent guardrail 2. Through this design, the connection and disassembly of multiple guardrails 1 and the adjacent guardrail 2 can be conveniently realized, improving the construction efficiency. At the same time, the split guardrail 1 and guardrail 2 are an integral whole, which is convenient for handling and storage, so as to reduce the occupied area during storage.

[0032] Refer to Figure 4 , the widening mechanism includes an installation groove two 5 opened inside the guardrail 1 and the guardrail 2. An L-shaped clamping plate 6 is slidably connected inside the installation groove two 5. Installation grooves one 3 are opened on both sides of the guardrail 1 and the guardrail 2. The inner walls of the installation grooves one 3 are all hinged with a bottom plate 4. The L-shaped clamping plate 6 abuts against the outer sides of the bottom plates 4.

[0033] During use, by pulling the L-shaped clamping plate 6 upward, the locking of the bottom plate 4 can be released, so that the bottom plates 4 on both sides of the guardrail 1 and the adjacent guardrail 2 are unfolded, so as to increase the contact area between the bottom of the guardrail 1 and the guardrail 2 and the bridge construction area, and improve the overall stability of the guardrail 1 and the guardrail 2.

[0034] Refer to Figure 1 , the warning mechanism includes a reflective strip 9 fixedly connected to one side of the guardrail 1 and the guardrail 2. Warning lights 10 are fixedly installed at the tops of the outer sides of the guardrail 1 and the guardrail 2. Storage batteries for powering the warning lights 10 are embedded inside the guardrail 1 and the guardrail 2.

[0035] During use, through the reflective strip 9 and the warning lights 10, it can remind pedestrians and workers at night, improving the safety of the device when used at night.

[0036] Refer to Figure 3 , the adjustment mechanism includes an adjustment plate 11 fixedly connected to the outside of the guardrail 1. An installation groove three 17 matched with the adjustment plate 11 is opened inside the guardrail 2. The inner wall of the installation groove three 17 is slidably connected with the corresponding adjustment plate 11. Through the cooperation of the installation groove three 17 and the adjustment plate 11, the adjustment plate 11 hidden inside the guardrail 2 can be pulled out according to the actual protection situation, so as to increase the overall length of the guardrail 1 and the guardrail 2 and reduce the handling quantity of the guardrail 1 and the guardrail 2.

[0037] Refer to Figure 1, mounting seats 7 are fixedly connected to the outer sides of both the first guardrail 1 and the second guardrail 2. Two mounting holes are respectively formed inside the bottom plate 4. By inserting chemical anchor bolts into the mounting holes, the entire bridge deck opening protection structure can be fixed.

[0038] Refer to Figure 1 , the first guardrail 1 and the second guardrail 2 are made of aluminum alloy as a whole, and the protection net 8 is a high-strength plastic net. By setting the aluminum alloy material and the high-strength plastic net, the overall strength of the structure can be improved and it is not easy to be damaged.

[0039] Refer to Figure 1 , a convenient pull ring is fixedly connected to the top of the long screw 15 to facilitate the use of the long screw 15.

[0040] Working principle: First, insert the kit 13 into the corresponding clamping groove 16, and use the long screw 15 to penetrate through two kits 13 and a connecting piece 12. Then rotate the long screw 15 to lock between the internal thread groove 18 and the long screw 15, so as to fix the first guardrail 1 and the adjacent second guardrail 2. Through this design, the connection and disassembly of multiple first guardrails 1 and adjacent second guardrails 2 can be conveniently realized, improving the construction efficiency. At the same time, the disassembled first guardrail 1 and second guardrail 2 are an integral whole, which is convenient for handling and storage to reduce the occupied area during storage.

[0041] Then, by pulling the L-shaped clamping plate 6 upward, the locking of the bottom plate 4 can be released, so that the bottom plates 4 on both sides of the first guardrail 1 and the adjacent second guardrail 2 can be unfolded to increase the contact area between the bottoms of the first guardrail 1 and the second guardrail 2 and the bridge construction area, so as to improve the overall stability of the first guardrail 1 and the second guardrail 2. And through the reflective strip 9 and the warning light 10, pedestrians and workers at night can be reminded, and thus an important warning effect can be achieved at night to avoid the situation of falling into the inside of the steel box girder due to the dark road at night. And the bottom of this structure is firmly connected to the steel box girder bridge deck through expansion bolts and chemical anchor bolts to ensure the stability of the entire protection structure. The protection net 8 is made of flexible material, which can not only effectively prevent people and objects from falling, but also adapt to a certain deformation to improve the durability of the overall structure.

[0042] The above are only the preferred embodiments of the present application and are not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A steel box girder bridge deck opening edge protection structure, comprising a guardrail (1), characterized in that: A guardrail 2 (2) is arranged on the outer side of the guardrail 1 (1), and a guardrail 1 (1) and a guardrail 2 (2) are both fixedly connected with a guard net (8) inside. Two connecting pieces (12) are fixedly connected to the outer side of the guardrail 2 (2), and a set (13) used in conjunction with the connecting piece (12) is fixedly connected to the side of the guardrail 1 (1) close to the guardrail 2 (2). A snap-fit ​​groove (16) is provided inside the connecting piece (12), and the snap-fit ​​groove (16) is snap-fitted with the corresponding set (13). A circular groove (14) is provided inside the set (13). ), an inner screw groove (18) is provided inside one of the connecting members (12) and below the clamping groove (16), a long screw rod (15) is inserted between the two connecting members (12), the long screw rods (15) all pass through the inside of the circular groove (14), the bottom ends of the long screw rods (15) are threadedly connected to the inner screw groove (18), the bottom ends of the guardrails 1 (1) and 2 (2) are both provided with widening mechanisms, the outer sides of the guardrails 1 (1) and 2 (2) are both provided with warning mechanisms, and an adjustment mechanism is provided between the guardrails 1 (1) and 2 (2).

2. The steel box girder bridge deck opening edge protection structure according to claim 1, characterized in that: The widening mechanism comprises a second installation groove (5) provided inside the first guardrail (1) and the second guardrail (2), an L-shaped clamping plate (6) being slidably connected inside the second installation groove (5), a first installation groove (3) being provided on both sides of the first guardrail (1) and the second guardrail (2), a bottom plate (4) being hingedly connected to the inner wall of the first installation groove (3), and the L-shaped clamping plate (6) being in contact with the outer side of the bottom plate (4).

3. The steel box girder bridge deck opening edge protection structure according to claim 1, characterized in that: The warning mechanism comprises a reflective strip (9) fixedly connected to one side of the guardrail 1 (1) and the guardrail 2 (2); warning lights (10) are fixedly mounted on the top of the outer sides of the guardrail 1 (1) and the guardrail 2 (2); and batteries for supplying power to the warning lights (10) are embedded inside the guardrail 1 (1) and the guardrail 2 (2).

4. The steel box girder bridge deck opening edge protection structure according to claim 1, characterized in that: The adjustment mechanism comprises an adjustment plate (11) fixedly connected to the outside of the guardrail 1 (1); a mounting groove 3 (17) for use with the adjustment plate (11) is provided inside the guardrail 2 (2); and an inner wall of the mounting groove 3 (17) is slidably connected to the corresponding adjustment plate (11).

5. The steel box girder bridge deck opening edge protection structure according to claim 2, characterized in that: The outer sides of the guardrail 1 (1) and the guardrail 2 (2) are fixedly connected with mounting seats (7), and the interior of the base plate (4) is provided with two mounting holes.

6. The steel box girder bridge deck opening edge protection structure according to claim 1, characterized in that: The first guardrail (1) and the second guardrail (2) are made entirely of aluminum alloy, and the protective net (8) is a high-strength plastic net.

7. The steel box girder bridge deck opening edge protection structure according to claim 1, characterized in that: A pull ring is fixedly connected to the top of the long screw rod (15) for easy use.

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