Movable box girder embedded steel bar positioning auxiliary device

Abstract

The application relates to the technical field of bridge construction equipment, in particular to a movable box girder embedded steel bar positioning auxiliary device, which comprises an upper frame, the upper frame is in a rectangular structure, support rods are arranged at the four corner positions of the upper frame, a push-pull frame is slidably connected to the upper frame, a fixed clamping plate is arranged on the upper frame, a movable clamping plate matched with the fixed clamping plate is arranged on the push-pull frame, when the movable clamping plate moves to the fixed clamping plate, the steel bars between the movable clamping plate and the fixed clamping plate are fixed, and the efficiency of steel bar fixing during box girder manufacturing can be improved.

Description

Technical Field

[0001] This application relates to the field of bridge construction equipment technology, and in particular to a movable box girder pre-embedded steel bar positioning auxiliary device. Background Technology

[0002] In box girder construction, the positioning accuracy of the embedded reinforcing bars directly affects the reliability and durability of subsequent structural connections. Traditional construction methods mainly rely on manual measurement, string lines, or ruler measurements for positioning, which has the following significant drawbacks: Manual operation is greatly affected by subjective factors, and the error in the spacing of the reinforcing bars generally exceeds the specifications, resulting in repeated corrections or re-welding, which seriously affects the construction progress. Existing jigs or positioning devices are mostly fixed structures, which cannot adapt to changes in the cross-sectional size of different box girders or the position of pre-embedded reinforcing bars, requiring frequent disassembly and reassembly, which is inefficient. Some devices are temporarily fixed by welding, which not only damages the main reinforcement of the box girder, but may also cause positioning displacement due to welding deformation, affecting the structural bearing capacity. Traditional devices require multiple people to cooperate to complete the adjustment and fixing, which is labor-intensive and makes it difficult to achieve standardized construction.

[0003] While existing guide rail positioning devices can achieve multi-dimensional adjustment, they are complex in structure, expensive, and require an external power source, making them unsuitable for field construction environments. Although simple formwork frames have a simple structure, they lack a reliable locking mechanism and are prone to displacement during concrete pouring. Utility Model Content

[0004] To improve the efficiency of fixing reinforcing bars during box girder manufacturing, this application provides a movable auxiliary device for positioning pre-embedded reinforcing bars in box girders.

[0005] This application provides a movable box girder pre-embedded steel bar positioning auxiliary device, which adopts the following technical solution: it includes an upper frame, the upper frame is rectangular, and support rods are provided at the four corners of the upper frame. A push-pull frame is slidably connected to the upper frame, and a fixed clamping plate is provided on the upper frame. A movable clamping plate is provided on the push-pull frame to cooperate with the fixed clamping plate. When the movable clamping plate moves to the fixed clamping plate, the steel bar located between the movable clamping plate and the fixed clamping plate will be fixed.

[0006] Optionally, the end of the support rod away from the upper frame is provided with a locking foot, and each locking foot is provided with a positioning block for fixing. The positioning block has an "L" shaped cross-section. Optionally, the upper frame is provided with connecting rods, and there are multiple connecting rods that are evenly spaced along the length direction of the two opposite sides of the upper frame. The push-pull frame is provided with connecting rods, and there are multiple connecting rods that are evenly spaced along the length direction of the two opposite sides of the push-pull frame.

[0007] Optionally, a fixing rod is provided at two corners on one side of the fixing clamp, and a fixing hole is provided at two corners on the side of the fixing clamp away from the fixing rod. An insertion hole for use with the fixing rod is provided on the movable clamp, and an insertion rod for use with the fixing hole is provided on the movable clamp.

[0008] Optionally, the push-pull frame is provided with a push handle.

[0009] In summary, this application includes the following beneficial technical effects: 1. Set an upper frame to limit the placement position of the reinforcing bars. Set a fixed clamp on the upper frame. Set a sliding frame on the upper frame. Set a movable clamp on the sliding frame that corresponds one-to-one with the fixed clamp. The reinforcing bars are fixed under the support of the fixed clamp and the movable clamp. 2. The setting of multiple fixed clamps on the upper frame and multiple movable clamps on the sliding frame is used to fix multiple steel bars. The setting of connecting rods and connecting rods is used to connect the fixed clamps and movable clamps. The fixed rod on the fixed clamp is inserted into the insertion hole on the movable clamp, and the insertion rod on the movable clamp is inserted into the fixed hole on the fixed clamp, so as to ensure the effective fixing of the steel bars. 3. The push handle facilitates the movement of the push-pull frame, and the locking feet and positioning blocks, along with the support rods, help to fix the upper frame. Attached Figure Description

[0010] Figure 1 This is a top view of a movable box girder pre-embedded steel bar positioning auxiliary device according to this application; Figure 2 This is a structural diagram of the upper frame of a movable box girder pre-embedded steel bar positioning auxiliary device according to this application; Figure 3 This is a structural diagram of the push-pull frame of a movable box girder pre-embedded steel bar positioning auxiliary device according to this application; Figure 4 This is a structural diagram of the fixed clamp and movable clamp of a movable box girder pre-embedded steel bar positioning auxiliary device according to this application; Figure 5 This is a structural diagram of the positioning block of a movable box girder pre-embedded steel bar positioning auxiliary device according to this application.

[0011] Reference numerals: 1. Upper frame, 2. Support rod, 3. Push-pull frame, 4. Fixed clamping plate, 5. Moving clamping plate, 6. Clamping foot, 7. Positioning block, 8. Connecting rod, 9. Connecting rod, 10. Fixed rod, 11. Fixed hole, 12. Insertion hole, 13. Insertion rod, 14. Push handle. Detailed Implementation

[0012] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0013] This application discloses a movable auxiliary device for positioning pre-embedded reinforcing bars in box girders. For example... Figure 1 , 2 As shown in Figures 3 and 5, the structure includes an upper frame 1, which is a rectangular ring structure. Support rods 2 are welded to the four corners of the upper frame 1. A locking foot 6 is welded to the end of each support rod 2 away from the upper frame 1. The locking foot 6 has a triangular structure, and each locking foot 6 is equipped with a positioning block 7 for fixing. The positioning block 7 has an "L"-shaped cross-section and a locking groove for the support rod 2 to pass through. A sliding ring is provided on the upper frame 1, and a push-pull frame 3 is slidably connected to the upper frame 1 via the sliding ring. The push-pull frame 3 has a "U"-shaped structure, and a push handle 14 is welded to one end of the push-pull frame 3. A fixed clamping plate 4 is welded to the upper frame 1, and a movable clamping plate 5 is welded to the push-pull frame 3 to cooperate with the fixed clamping plate 4. When the movable clamping plate 5 moves to the fixed clamping plate 4, the reinforcing steel bar located between the movable clamping plate 5 and the fixed clamping plate 4 will be fixed.

[0014] In one embodiment, according to the appendix Figure 2 and 3 As shown, a connecting rod 8 is welded perpendicularly to the upper frame 1. There are multiple connecting rods 8, which are evenly spaced along the length of the two opposite sides of the upper frame 1. A connecting rod 9 is welded perpendicularly to the push-pull frame 3. There are multiple connecting rods 9, which are evenly spaced along the length of the two opposite sides of the push-pull frame 3.

[0015] In one embodiment, according to the appendix Figure 4 As shown, a fixing rod 10 is threadedly connected to two corners on one side of the fixed clamping plate 4, and fixing holes 11 are provided at two corners on the side of the fixed clamping plate 4 away from the fixing rod 10. The movable clamping plate 5 is provided with an insertion hole 12 for use with the fixing rod 10, and an insertion rod 13 for use with the fixing hole 11 is threadedly connected to the movable clamping plate 5.

[0016] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A movable box girder pre-embedded steel bar positioning auxiliary device, comprising an upper frame (1), characterized in that: The upper frame (1) has a rectangular structure. Support rods (2) are provided at the four corners of the upper frame (1). A push-pull frame (3) is slidably connected to the upper frame (1). A fixed clamping plate (4) is provided on the upper frame (1). A movable clamping plate (5) is provided on the push-pull frame (3) to cooperate with the fixed clamping plate (4). When the movable clamping plate (5) moves to the fixed clamping plate (4), the steel bar located between the movable clamping plate (5) and the fixed clamping plate (4) will be fixed.

2. The movable box girder pre-embedded steel bar positioning auxiliary device according to claim 1, characterized in that: The support rod (2) is provided with a locking foot (6) at the end away from the upper frame (1), and each locking foot (6) is provided with a positioning block (7) for fixing. The positioning block (7) has an "L" shaped cross-section.

3. The movable box girder pre-embedded steel bar positioning auxiliary device according to claim 1, characterized in that: The upper frame (1) is provided with a connecting rod (8), and there are multiple connecting rods (8) that are evenly spaced along the length direction of the two opposite sides of the upper frame (1). The push-pull frame (3) is provided with a connecting rod (9), and there are multiple connecting rods (9) that are evenly spaced along the length direction of the two opposite sides of the push-pull frame (3).

4. The movable box girder pre-embedded steel bar positioning auxiliary device according to claim 1, characterized in that: The fixed clamp (4) has a fixing rod (10) at one of its two corners. The fixed clamp (4) has a fixing hole (11) at one of its two corners away from the fixing rod (10). The movable clamp (5) has a insertion hole (12) that works with the fixing rod (10). The movable clamp (5) has a insertion rod (13) that works with the fixing hole (11).

5. The movable box girder pre-embedded steel bar positioning auxiliary device according to claim 1, characterized in that: The push-pull frame (3) is provided with a push handle (14).

Images