A kind of high-speed rail bridge stackable cover plate reinforcing steel welding moulding tool

Abstract

This utility model relates to the field of high-speed railway bridge deck cover plate processing technology, and discloses a welding jig for stackable cover plate reinforcement of high-speed railway bridges. The jig includes a frame, a base plate fixedly mounted on the upper surface of the frame, a side panel fixedly mounted on the end side wall of the base plate, and a reinforcing mesh fixedly connected to the outer wall of the base plate and the side panel adjacent to each other. Round steel bars are fixedly mounted on the inner surface of the reinforcing mesh, and a welding torch bracket is fixedly mounted on the side wall of the frame. This welding jig for stackable cover plate reinforcement of high-speed railway bridges utilizes the area enclosed by the base plate and side panels, along with multiple sets of round steel bars, to form a calibration and positioning space. This allows for batch loading and unloading of cover plate reinforcement, reducing the time required for multiple loading calibrations and unloading stacking, thereby improving welding efficiency and reducing labor costs.

Description

Technical Field

[0001] This utility model relates to the field of high-speed railway bridge deck cover plate processing technology, specifically a jig for welding steel bars of stackable cover plates for high-speed railway bridges. Background Technology

[0002] In the construction of cable trough covers for high-speed railway bridges, horizontal platform-type rebar binding jigs were previously used on construction sites. The operation involved removing each rebar mesh from the jig after welding, fabricating a certain number of cover plate rebar meshes, and then uniformly sorting and transporting the processed cover plate meshes to the cover plate pouring site. Because the rebar welders had to repeatedly remove the meshes from the platform, and the pre-transport sorting and stacking process resulted in low construction efficiency, we propose a stackable cover plate rebar welding jig for high-speed railway bridges. Utility Model Content

[0003] The purpose of this utility model is to provide a jig for welding steel bars of stackable cover plates for high-speed railway bridges, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a welding fixture for stackable cover plates of high-speed railway bridges, comprising a frame, a base plate fixedly installed on the upper surface of the frame, a side panel fixedly installed on the end side wall of the base plate, a steel mesh fixedly connected to the outer wall of the base plate and the side panel close to each other, round steel bars fixedly installed on the inner surface of the steel mesh, and a welding torch bracket fixedly installed on the side wall of the frame.

[0005] Preferably, the size of the steel mesh is exactly the same as that of the steel reinforcement in the high-speed railway bridge cover plate. The steel mesh contains several steel bars with rounded ends, and the steel mesh consists of two layers, with the steel bars of the two layers arranged perpendicularly to each other to form a mesh surface.

[0006] Preferably, the round steel bars are provided in multiple sets, and the multiple sets of round steel bars are arranged at the included angle of the mesh gap of the steel mesh. The round steel bars and the included angle of the mesh gap of the steel mesh are fixed by welding, while ensuring that the round steel bars and the steel mesh are perpendicular to each other.

[0007] Preferably, the angle between the steel mesh and the upper surface of the frame is set to 45°, so that workers can lay the cover plate steel bars to be processed on the steel mesh.

[0008] Preferably, the frame is internally provided with a support assembly, which includes a fixed rod. The two ends of the fixed rod are fixedly connected to the inner wall of the frame. A rocker is movably connected to the outer side of the fixed rod. A straight groove is opened on the inner wall of the rocker. A support frame is hinged to the top of the rocker. The upper surface of the support frame is fixedly connected to the bottom end face of the round steel. A square rod is fixedly installed on the side wall of the support frame. A sliding groove is opened on the outer wall of the support rod near the center of the frame. The end of the square rod is placed in the sliding groove. A crossbar is fixedly installed on the side wall of the round steel.

[0009] Preferably, the bottom of the rocker is provided with a pedal, and the angle between the pedal and the rocker is obtuse to facilitate the worker's stepping. The straight groove is provided on the side of the rocker near the top so that the cooperation between the rocker and the fixed rod is a force-saving lever setting.

[0010] Preferably, the diameter of the crossbar is the same as the diameter of the steel bars used in the steel mesh, so that the crossbar is horizontally positioned in the gap between the two layers of steel mesh to support the bottom of the steel bars of the high-speed railway bridge cover plate to be welded.

[0011] Compared with the prior art, this utility model provides a jig for welding steel bars of stackable cover plates for high-speed railway bridges, which has the following advantages:

[0012] 1. This stackable cover plate rebar welding jig for high-speed railway bridges uses a base plate and side plates to form a space for calibration and positioning, and multiple sets of round steel bars to enable batch loading and unloading of cover plate rebars. This reduces the time required for multiple loading calibrations and unloading stacking, thereby improving welding efficiency and reducing manpower consumption.

[0013] 2. This jig for welding stackable cover plate steel bars for high-speed railway bridges has a support component installed under the steel mesh. When the welding operation is finished, the worker steps on the pedal at the bottom of the rocker to lift the welded cover plate steel bars stacked on the steel mesh upwards, thereby exposing the gap below, so that the worker can pick them up. This avoids the problem of the cover plate steel bars being difficult to pick up and easy to pinch fingers due to their own weight and small gaps after being stacked. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of Embodiment 1 of the present utility model;

[0015] Figure 2 This is a schematic diagram of the steel mesh structure in Embodiment 1 of this utility model;

[0016] Figure 3 This is a schematic diagram of the main structure of Embodiment 2 of this utility model;

[0017] Figure 4 This is a partial structural diagram of Embodiment 2 of the present invention;

[0018] Figure 5 This is a schematic diagram of the support component structure in Embodiment 2 of this utility model.

[0019] In the diagram: 1. Frame; 2. Base plate; 3. Side panel; 4. Steel mesh; 5. Round steel; 6. Support rod; 7. Welding torch bracket; 8. Support component; 81. Fixing rod; 82. Rocker; 83. Straight groove; 84. Support frame; 85. Square rod; 86. Slide groove; 87. Crossbar. Detailed Implementation

[0020] Example 1

[0021] like Figures 1-2 As shown, this utility model provides a technical solution: a welding fixture for stackable cover plates of high-speed railway bridges, including a frame 1, a base plate 2 fixedly installed on the upper surface of the frame 1, a side panel 3 fixedly installed on the end side wall of the base plate 2, a steel mesh 4 fixedly connected on the outer wall of the base plate 2 and the side panel 3 close to each other, a round steel bar 5 fixedly installed on the inner surface of the steel mesh 4, and a welding torch bracket 7 fixedly installed on the side wall of the frame 1.

[0022] Furthermore, the size of the reinforcing mesh 4 is exactly the same as that of the reinforcing bars for the high-speed railway bridge cover plate. Specifically, the reinforcing mesh 4 contains several reinforcing bars with rounded ends, and consists of two layers, with the reinforcing bars of the two layers of reinforcing mesh 4 arranged perpendicularly to each other to form a mesh surface. At the same time, multiple sets of round steel bars 5 are set at the included angle of the mesh surface of the reinforcing mesh 4, and the round steel bars 5 and the included angle of the mesh surface of the reinforcing mesh 4 are fixed by welding, while ensuring that the round steel bars 5 and the reinforcing mesh 4 are perpendicular to each other. Specifically, the included angle between the reinforcing mesh 4 and the upper surface of the frame 1 is set to 45°, so that the workers can lay the cover plate reinforcing bars to be processed on the reinforcing mesh 4. Since the reinforcing mesh 4 is the same as the reinforcing bars of the high-speed railway bridge cover plate to be processed, the workers can have a visual reference for placement, reducing the difficulty of construction operations and improving work efficiency.

[0023] In the embodiments of this utility model, the arrangement of round steel 5 ensures the stability of the cover plate reinforcement during the placement and welding process, thus preventing incomplete or incorrect welding. Simultaneously, the welding torch bracket 7 allows workers to place the welding torch on it after welding, freeing their hands for handling the cover plate reinforcement. Furthermore, the perpendicularly arranged base plate 2 and side plate 3 allow for the stacking of multiple cover plate reinforcements for welding, eliminating the need for repeated handling and retrieval, thus improving efficiency and reducing labor costs.

[0024] Example 2

[0025] Based on Embodiment 1, a support assembly 8 is provided inside the frame 1. The support assembly 8 includes a fixing rod 81. Both ends of the fixing rod 81 are fixedly connected to the inner wall of the frame 1. A rocker plate 82 is movably connected to the outer side of the fixing rod 81. A straight groove 83 is opened on the inner wall of the rocker plate 82. A support frame 84 is hinged to the top of the rocker plate 82. The upper surface of the support frame 84 is fixedly connected to the bottom end face of the round steel 5. A square rod 85 is fixedly installed on the side wall of the support frame 84. A sliding groove 86 is opened on the outer wall of the support rod 6 near the center of the frame 1. The end of the square rod 85 is placed in the sliding groove 86. A crossbar 87 is fixedly installed on the side wall of the round steel 5.

[0026] Specifically, a foot pedal is provided at the bottom of the rocker 82, and the angle between the foot pedal and the rocker 82 is obtuse to facilitate the worker's stepping. The straight groove 83 is provided on the side of the rocker 82 near the top, so that the cooperation between the rocker 82 and the fixed rod 81 is a force-saving lever setting, thereby saving the worker's physical strength and facilitating the worker's continuous construction work. At the same time, the fixed rod 81 is provided in the straight groove 83 so that when the bottom of the rocker 82 is stepped on, it can lift the supporting frame 84 without causing movement interference.

[0027] In addition, there are four sets of square rods 85, and the four sets of square rods 85 are arranged in pairs on the left and right sides of the supporting frame 84. At the same time, there are four sets of support rods 6, and the four sets of support rods 6 are arranged in pairs on the left and right sides of the frame 1. This ensures that the support rods 6 and square rods 85 are arranged in a one-to-one correspondence, so that the slide 86 can guide and support the square rods 85 and the supporting frame 84. Furthermore, due to the parallel arrangement between the supporting frame 84 and the steel mesh 4, the round steel 5 and the steel mesh 4 will not interfere with each other when the supporting frame 84 moves up and down along the side of the support rod 6.

[0028] In this embodiment of the invention, the diameter of the crossbar 87 is the same as the diameter of the steel bars used in the steel mesh 4, so that the crossbar 87 is horizontally positioned in the gap between the two layers of steel mesh 4 to support the bottom of the steel bars of the high-speed railway bridge cover plate to be welded, and the two are completely in contact. When the welding operation is finished, the worker steps on the pedal at the bottom of the rocker 82, so that the rocker 82 can lift the top support frame 84 with the cooperation of the straight groove 83 and the fixed rod 81. At the same time, the support frame 84 moves towards the bottom surface of the steel mesh 4 under the guidance of the square rod 85. At this time, under the action of the round steel 5 and the crossbar 87, the welded cover plate steel bars stacked on the steel mesh 4 are lifted upward, thereby exposing the gap below, so that the worker can pick them up. This avoids the problem that the construction workers will find it inconvenient to pick up the cover plate steel bars due to their own weight and small gaps after they are stacked, and that their fingers are easily pinched.

[0029] In this utility model, when in use, the workers align the cover plate reinforcing bars and the reinforcing mesh 4 and place them down along the round steel 5, stacking them on top of the reinforcing mesh 4. Then, the workers use welding torches to weld the cover plate reinforcing bars one by one. After welding, the workers pick up the stacked cover plate reinforcing bars and take them out. The loading and unloading can be carried out in batches, reducing the time required for multiple loading, calibration and unloading stacking, thereby improving the efficiency of welding processing and reducing manpower consumption.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A jig for welding steel reinforcement of stackable cover plates for high-speed railway bridges, comprising a frame (1), characterized in that: A base plate (2) is fixedly installed on the upper surface of the frame (1). A side panel (3) is fixedly installed on the end side wall of the base plate (2). A steel mesh (4) is fixedly connected on the outer wall of the base plate (2) and the side panel (3) on the side close to each other. A round steel bar (5) is fixedly installed on the inner surface of the steel mesh (4). A welding handle bracket (7) is fixedly installed on the side wall of the frame (1).

2. The jig for welding steel reinforcement of stackable cover plates for high-speed railway bridges according to claim 1, characterized in that: The size of the steel mesh (4) is exactly the same as that of the steel reinforcement of the high-speed railway bridge cover plate. The steel mesh (4) contains several steel bars with rounded ends. The steel mesh (4) contains two layers, and the steel bars of the two layers of steel mesh (4) are arranged perpendicularly to each other to form a mesh surface.

3. The jig for welding steel reinforcement of stackable cover plates for high-speed railway bridges according to claim 2, characterized in that: The number of round steel bars (5) is set in multiple sets. Multiple sets of round steel bars (5) are set at the mesh gap angle of the steel mesh (4). The round steel bars (5) and the steel mesh (4) are fixed by welding at the mesh gap angle, while ensuring that the round steel bars (5) and the steel mesh (4) are perpendicular to each other.

4. The jig for welding steel reinforcement of stackable cover plates for high-speed railway bridges according to claim 1, characterized in that: The angle between the steel mesh (4) and the upper surface of the frame (1) is set to 45°.

5. The jig for welding steel reinforcement of stackable cover plates for high-speed railway bridges according to claim 1, characterized in that: The frame (1) is provided with a support assembly (8) inside. The support assembly (8) includes a fixed rod (81). The two ends of the fixed rod (81) are fixedly connected to the inner wall of the frame (1). The outer side of the fixed rod (81) is movably connected to a rocker (82). The inner wall of the rocker (82) is provided with a straight groove (83). The top of the rocker (82) is hinged to a support frame (84). The upper surface of the support frame (84) is fixedly connected to the bottom end face of the round steel (5). The side wall of the support frame (84) is fixedly installed with a square rod (85). The outer wall of the support rod (6) near the center of the frame (1) is provided with a sliding groove (86). The end of the square rod (85) is placed in the sliding groove (86). The side wall of the round steel (5) is fixedly installed with a crossbar (87).

6. The jig for welding steel reinforcement of stackable cover plates for high-speed railway bridges according to claim 5, characterized in that: The bottom of the rocker (82) is provided with a pedal, and the angle between the pedal and the rocker (82) is obtuse. The straight groove (83) is provided on the side of the rocker (82) near the top.

7. A jig for welding steel reinforcement of stackable cover plates for high-speed railway bridges according to claim 5, characterized in that: The diameter of the crossbar (87) is the same as the diameter of the steel bars used in the steel mesh (4).

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