Adjustable high-speed rail box girder steel bar positioning mould

Abstract

The utility model discloses an adjustable high -speed rail box girder steel bar positioning mould positioning mould body includes telescopic bottom bracing piece and two oblique blocking lever piece, two oblique blocking lever piece are respectively in the shape of inclination swing hinged installation in telescopic bottom bracing piece both ends position, and the bottom both ends of telescopic bottom bracing piece are fixedly connected and sliding connection with support guide rail respectively, and the upper portion detachable mounting of telescopic bottom bracing piece has the supporting plate piece, and the supporting plate piece is used for placing bottom reinforcement, and multiple draw bars are inserted between two oblique blocking lever pieces. The utility model can adjust the mould size according to the size of box girder, and the telescopic bottom bracing piece can change the length, can satisfy the length requirement of box girder bottom, and the supporting plate piece is placed on the telescopic bottom bracing piece, and the bottom reinforcement is placed on the U-shaped clamping block, and the overall height of oblique blocking lever piece is adjusted, and the draw bar is inserted between two oblique blocking lever piece positions, and the arrangement of box girder bottom reinforcement and draw bar can be completed, improve the efficiency of box girder reinforcement, and simple operation, and the adaptation range is wide.

Description

Technical Field

[0001] This utility model relates to the field of box girder reinforcement processing technology, specifically an adjustable high-speed railway box girder reinforcement positioning jig. Background Technology

[0002] In high-speed railway bridge construction, precast box girders are widely used key load-bearing components. Their structural performance and durability highly depend on the precise forming and positioning of the internal steel reinforcement cage. Traditional high-speed railway box girder reinforcement binding and positioning operations mainly rely on manual placement, spacing marking, and manual binding on fixed formwork frames. This method has the following prominent technical drawbacks: Poor versatility and high cost: The dimensions of box girders in high-speed rail projects (such as length, bottom width, and web height) vary depending on the design span and load. Traditional jigs are mostly rigid integral structures welded together with fixed dimensions. In order to meet the production of box girders of different specifications, special jigs need to be customized for each size, resulting in a large number of jigs and extremely high manufacturing, storage and management costs, which seriously restricts the flexible production capacity of precast beam yards.

[0003] The efficiency of reinforcement placement is low and the accuracy is difficult to guarantee: When manually placing a large number of longitudinal bottom bars, transverse tie bars and stirrups, it is necessary to repeatedly measure and mark lines to determine the spacing, which is labor-intensive and slow. Especially for steel mesh with strict spacing requirements, human error is easy to occur, resulting in uneven steel bar spacing and inaccurate control of protective layer thickness, which directly affects the stress performance and durability of box girder.

[0004] The operation is cumbersome and the adaptability is poor: even if some simple adjustable jigs exist, the adjustment methods are often clumsy, such as replacing a large number of independent pads or re-welding positioning columns. The adjustment is time-consuming and labor-intensive, and the overall rigidity and stability decrease after adjustment. It is unable to quickly and accurately adapt to the reinforcement requirements of multiple similar but different box girders in the same project.

[0005] Therefore, there is an urgent need in the existing technology for a special jig that can quickly and accurately adapt to different box girder sizes and efficiently integrate the positioning of bottom reinforcement and tie bars, so as to solve the bottlenecks in versatility, efficiency, accuracy and ease of operation, and meet the development needs of standardized and intelligent construction of modern high-speed railway precast beam yards. Utility Model Content

[0006] (a) Technical problems to be solved This utility model provides an adjustable high-speed railway box girder reinforcement positioning jig, which aims to solve the problems mentioned in the background art.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: An adjustable high-speed railway box girder rebar positioning jig includes multiple positioning jig bodies and multiple support guide rails. The positioning jig bodies are installed on the corresponding support guide rails. Each positioning jig body includes a telescopic bottom support and two inclined stop bars. The two inclined stop bars are respectively installed at both ends of the telescopic bottom support in an inclined manner and are fixed by locking bolts. The bottom ends of the telescopic bottom support are respectively fixedly connected to the support guide rails and slidably connected to them. A support plate is detachably installed on the upper part of the telescopic bottom support for placing the bottom reinforcement. Multiple tie bars are interspersed between the two inclined stop bars.

[0008] As a preferred technical solution of this application, the telescopic bottom support includes a first bottom support plate, a second bottom support plate, and a telescopic cylinder. A support block is fixedly installed on the bottom of the first bottom support plate, and the support block is fixedly installed on the support guide rail. A receiving opening is opened at one end of the first bottom support plate near the second bottom support plate. The telescopic cylinder is fixedly installed in the receiving opening. The piston shaft of the telescopic cylinder is fixedly connected to one end of the second bottom support plate. A U-shaped slider is fixedly installed on the bottom of the second bottom support plate, and the U-shaped slider is slidably connected to the support guide rail.

[0009] As a preferred technical solution of this application, the inclined stop bar includes a bottom stop bar and a top support bar. The top support bar has a slot opening that extends through the bottom. The bottom stop bar has an integrally structured insert bar at its upper part, which is inserted into the slot opening. The bottom stop bar, the top support bar, and the insert bar have multiple through holes equidistantly opened on their surfaces for the tie rod to pass through. A first knob bolt is installed at the lower end of one side of the top support bar to fix the insert bar.

[0010] As a preferred technical solution of this application, the pallet includes a U-shaped steel plate and a plurality of U-shaped clips. The U-shaped steel plate is placed on a first bottom support rod and a second bottom support plate and engages with the first bottom support rod and the second bottom support plate. The plurality of U-shaped clips are evenly clipped on the U-shaped steel plate. The upper part of the U-shaped clips is provided with a groove for placing bottom reinforcement.

[0011] As a preferred technical solution of this application, a second knob bolt is installed on one side of the U-shaped card block, and the second knob bolt is used to fix the U-shaped card block to the U-shaped steel plate.

[0012] As a preferred technical solution of this application, an L-shaped plate is fixedly installed on the outer end of the side surface of the first bottom support plate and the second bottom support plate, and a third knob bolt is installed on the outer side of the L-shaped plate. The third knob bolt is used to fix the U-shaped steel plate.

[0013] As a preferred technical solution of this application, the telescopic cylinder is connected to a hydraulic station, which controls the telescopic movement via a remote control switch.

[0014] (III) Beneficial Effects This invention can adjust the jig size according to the box girder size, quickly and accurately adapt to different box girder sizes, and efficiently integrate the positioning of bottom reinforcement and tie bars. The telescopic bottom support can change its length to meet the bottom length requirements of the box girder. Then, the corresponding size pallet is placed on the telescopic bottom support, the bottom reinforcement is placed on the U-shaped block, the overall height of the inclined stop is adjusted, and the tie bars are inserted between the two inclined stop bars to complete the arrangement of the bottom reinforcement and tie bars of the box girder. This improves the efficiency of box girder reinforcement arrangement, is simple to operate, and has a wide range of applications. Attached Figure Description

[0015] Figure 1 A schematic diagram of an adjustable high-speed railway box girder reinforcement positioning jig; Figure 2 A front view of an adjustable high-speed railway box girder reinforcement positioning jig; Figure 3 This is a structural diagram of the inclined stop member of an adjustable high-speed railway box girder rebar positioning jig; Figure 4 This is a structural diagram of a telescopic bottom support component for an adjustable high-speed railway box girder rebar positioning jig.

[0016] In the picture: 1. Support rail; 2. Inclined stop bar; 21. Bottom stop bar; 22. Top support bar; 23. Slot opening; 24. Insert rod; 25. Through hole; 26. First knob bolt; 3. Telescopic bottom support; 31. First bottom support plate; 32. Second bottom support plate; 33. Telescopic cylinder; 4. Tie rod; 5. Bottom rib; 6. Support plate; 61. U-shaped steel plate; 62. U-shaped clamp; 63. Second knob bolt; 64. L-shaped plate; 65. Third knob bolt; 7. U-shaped slider; 8. Support block. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] See Figures 1-4As shown, this utility model provides an adjustable high-speed railway box girder rebar positioning jig, including multiple positioning jig bodies and multiple support guide rails 1. The positioning jig body 1 is installed on the corresponding support guide rail 1. The positioning jig body 1 includes a telescopic bottom support 3 and two inclined stop rods 2. The two inclined stop rods 2 are respectively inclined and movably hinged at both ends of the telescopic bottom support 3 and fixed by locking bolts. The bottom ends of the telescopic bottom support 3 are respectively fixedly connected to the support guide rail 1 and slidably connected to it. A support plate 6 is detachably installed on the upper part of the telescopic bottom support 3. The support plate 6 is used to place the bottom reinforcement 5. Multiple tie rods 5 are inserted between the two inclined stop rods 2.

[0019] Both the aforementioned pallet 6 and the inclined stop bar 2 are steel structures.

[0020] In this embodiment, the telescopic base support 3 includes a first base support plate 31, a second base support plate 32, and a telescopic cylinder 33. A support block 8 is fixedly installed at the bottom of the first base support plate 31, and the support block 8 is fixedly installed on the support guide rail 1. A receiving opening is opened at one end of the first base support plate 31 near the second base support plate 32, and the telescopic cylinder 33 is fixedly installed in the receiving opening. The piston shaft of the telescopic cylinder 33 is fixedly connected to one end of the second base support plate 32. A U-shaped slider 7 is fixedly installed at the bottom of the second base support plate 32, and the U-shaped slider 7 is slidably connected to the support guide rail 1.

[0021] In this embodiment, the inclined stop bar 2 includes a bottom stop bar 21 and a top support bar 22. The top support bar 22 has a slot 23 that extends through the bottom. The bottom stop bar 21 has an integral insert bar 24 on its upper part. The insert bar 24 is inserted into the slot 23. The surfaces of the bottom stop bar 21, the top support bar 22 and the insert bar 24 are provided with multiple through holes 25 at equal intervals for the tie bar 4 to pass through. A first knob bolt 26 is installed at the lower end of one side of the top support bar 22. The first knob bolt 26 is used to fix the insert bar 24.

[0022] In this embodiment, the support plate 6 includes a U-shaped steel plate 61 and a plurality of U-shaped clamping blocks 62. The U-shaped steel plate 61 is placed on the first bottom support rod 31 and the second bottom support plate 32 and engages with the first bottom support rod 31 and the second bottom support plate 32. The plurality of U-shaped clamping blocks 62 are evenly clamped on the U-shaped steel plate 61. The upper part of the U-shaped clamping block 62 is provided with a groove for placing the bottom rib 5.

[0023] In this embodiment, a second knob bolt 63 is installed on one side of the U-shaped block 62. The second knob bolt 63 is used to fix the U-shaped block 62 to the U-shaped steel plate 61.

[0024] Furthermore, in this embodiment, an L-shaped plate 64 is fixedly installed on the outer end of the side surface of both the first bottom support plate 32 and the second bottom support plate 32. A third knob bolt 65 is installed on the outer side of the L-shaped plate 64, and the third knob bolt 65 is used to fix the U-shaped steel plate 61.

[0025] In this embodiment, the telescopic cylinder 33 is connected to a hydraulic station, which controls its extension and retraction via a remote control switch.

[0026] The specific operating steps are as follows: According to the size requirements of the box girder, the telescopic cylinder 33 is activated to adjust the distance between the first bottom support rod 31 and the second bottom support rod 32, so that the overall length of the telescopic bottom support 3 meets the bottom length requirements of the box girder. Then, the U-shaped steel plate 61 of the corresponding size is placed on the telescopic bottom support 3 and fixed with the second knob bolt 63. According to the box girder bottom reinforcement specifications, the U-shaped clips 62 are placed on the U-shaped steel plate 61 at the corresponding intervals and fixed with the third knob bolt 65. Then, the bottom reinforcement 5 is placed on the U-shaped clips 62, the overall height of the inclined baffle 2 is adjusted and fixed with the first knob bolt 26. After fixing, the tie rod 4 can be inserted between the two inclined baffles 2 to complete the arrangement of the box girder bottom reinforcement 5 and tie rod 4.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable high-speed railway box girder reinforcement positioning jig, comprising multiple positioning jig bodies, characterized in that: It also includes multiple support rails. The positioning jig body is installed on the corresponding support rails. The positioning jig body includes a telescopic bottom support and two inclined stop bars. The two inclined stop bars are respectively installed at both ends of the telescopic bottom support in an inclined shape and are fixed by locking bolts. The bottom ends of the telescopic bottom support are respectively fixedly connected to the support rail and slidably connected to it. A support plate is detachably installed on the upper part of the telescopic bottom support. The support plate is used to place the bottom reinforcement. Multiple tie bars are interspersed between the two inclined stop bars.

2. The adjustable high-speed railway box girder reinforcement positioning jig according to claim 1, characterized in that: The telescopic base support includes a first base support plate, a second base support plate, and a telescopic hydraulic cylinder. A support block is fixedly installed on the bottom of the first base support plate, and the support block is fixedly installed on a support guide rail. A receiving opening is opened at one end of the first base support plate near the second base support plate. The telescopic hydraulic cylinder is fixedly installed in the receiving opening. The piston shaft of the telescopic hydraulic cylinder is fixedly connected to one end of the second base support plate. A U-shaped slider is fixedly installed on the bottom of the second base support plate, and the U-shaped slider is slidably connected to the support guide rail.

3. The adjustable high-speed railway box girder reinforcement positioning jig according to claim 1, characterized in that: The inclined stop rod includes a bottom stop rod and a top support rod. The top support rod has a slot opening that extends through the bottom. The bottom stop rod has an integrally structured insert rod on its upper part, which is inserted into the slot opening. The bottom stop rod, the top support rod, and the insert rod have multiple through holes equidistantly spaced on their surfaces for the tie rod to pass through. A first knob bolt is installed at the lower end of one side of the top support rod to fix the insert rod.

4. The adjustable high-speed railway box girder reinforcement positioning jig according to claim 2, characterized in that: The pallet includes a U-shaped steel plate and multiple U-shaped clips. The U-shaped steel plate is placed on the first bottom support rod and the second bottom support plate and engages with the first bottom support rod and the second bottom support plate. The multiple U-shaped clips are evenly clipped onto the U-shaped steel plate. The upper part of the U-shaped clips is provided with a groove for placing the bottom reinforcement.

5. The adjustable high-speed railway box girder reinforcement positioning jig according to claim 4, characterized in that: A second knob bolt is installed on one side of the U-shaped block, which is used to fix the U-shaped block to the U-shaped steel plate.

6. The adjustable high-speed railway box girder reinforcement positioning jig according to claim 5, characterized in that: L-shaped plates are fixedly installed on the outer ends of the side surfaces of the first and second bottom support plates. A third knob bolt is installed on the outer side of the L-shaped plate to fix the U-shaped steel plate.

7. The adjustable high-speed railway box girder reinforcement positioning jig according to claim 2, characterized in that: The telescopic cylinder is connected to a hydraulic station, which controls its extension and retraction via a remote control switch.

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