A jig for controlling the spacing between the inner and outer steel bars in a box girder web

Abstract

The utility model discloses a kind of for controlling the spacing of inner and outer side reinforcement of box girder web, it is related to the technical field of building engineering construction, including base, two support plates are provided on the base, fixed component is provided on each support plate, the fixed component includes multiple support frames mounted on support plate, two group angle steels are jointly installed in multiple support frames, two rotating devices are provided on each support frame, one rotating device is mounted on support frame. The design is adapted to reinforcement by the angle steel first groove of semicircular type, flat iron second groove, can be stably clamped inner and outer side reinforcement and independent control distance, and flat iron is flexibly turned over by the aid of rotating device and connecting rod, cooperate with the positioning of multiple grooves Synchronous multiple reinforcement, simplify process, improve efficiency;While support frame strengthens structural stability, overall bearing is strong and does not need manual steel bar, can reduce operating intensity and construction risk, improve safety.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a jig for controlling the spacing of the inner and outer steel bars of the web of a box girder. Background Technology

[0002] Precast small box girders have become the main construction technology for bridge superstructure construction. The reinforcement of box girders is generally made by binding the reinforcement frame. Conventional box girder reinforcement construction frame can only control the spacing of the outer reinforcement, and the spacing of the inner reinforcement cannot be guaranteed.

[0003] This device can accurately locate the positions of the inner and outer reinforcing bars of the box girder, providing a new approach to solving the problem of inconsistent spacing between the inner and outer reinforcing bars of the box girder web. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a jig for controlling the spacing of the inner and outer reinforcing bars in the web of a box girder, thus solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a jig for controlling the spacing of the inner and outer reinforcing bars in the web of a box girder, comprising a base, two support plates on the base, a fixing component on each support plate, and multiple support frames mounted on the support plates. Two sets of angle steel are installed inside the multiple support frames, and two rotating devices are provided on each support frame. One of the rotating devices is mounted on the support frame, and a first rotating connecting rod is connected inside each rotating device. Another rotating device is mounted on the other end of the first rotating connecting rod, and a second rotating connecting rod is connected inside the other rotating device. A flat iron is installed at the other end of the multiple second rotating connecting rods.

[0006] As a further technical solution of this utility model, both sets of angle steels are provided with multiple first grooves inside, and the flat iron is provided with multiple second grooves inside. The first and second grooves are both semi-circular and are used to insert and fix the reinforcing bars during construction.

[0007] As a further technical solution of this utility model, the base has an installation groove inside, and an adjustment mechanism is provided inside the installation groove. The adjustment mechanism includes a motor installed inside the installation groove, and the output end of the motor is connected to a bidirectional threaded rod.

[0008] As a further technical solution of this utility model, the end of the bidirectional threaded rod away from the motor is rotatably connected inside the mounting groove, and the outer wall of the bidirectional threaded rod is threaded with two threaded sleeves, and each threaded sleeve has a connecting block connected to its outer wall.

[0009] As a further technical solution of this utility model, each of the connecting blocks is connected to the bottom surface of the support plate after passing through the mounting groove on the side away from the threaded sleeve.

[0010] As a further technical solution of this utility model, each of the support plates is equipped with a slider on its bottom surface, and the upper surface of the base is provided with a groove that matches the two sliders.

[0011] As a further technical solution of this utility model, four support blocks are installed on the bottom surface of the base, and a controller is installed on the outer wall of the base.

[0012] This utility model provides a jig for controlling the spacing of the inner and outer reinforcement bars in the web of a box girder, which has the following advantages compared with the prior art:

[0013] This design presents a jig for controlling the spacing of the inner and outer reinforcing bars in the web of a box girder. The angle steel and the first and second grooves in the fixing components are all semi-circular, matching the height of the outer contour of the reinforcing bars. This stable clamping prevents the reinforcing bars from shifting. The outer reinforcing bars are fixed via the angle steel grooves, while the inner reinforcing bars are positioned via the flat iron grooves. These two are independently controlled and do not interfere with each other, ensuring that the spacing of the inner and outer reinforcing bars meets design standards. This design also simplifies the construction process and improves work efficiency. A rotating device, in conjunction with the first and second rotating connecting rods, allows the flat iron to be flexibly rotated. During the reinforcing bar installation phase, it can be flipped away from the work area without obstructing placement; during the fixing phase, it can be quickly clamped once in place. Multiple grooves on the angle steel and flat iron can simultaneously position multiple reinforcing bars. The support frame further enhances the installation stability of the angle steel and the rotating device. The overall load-bearing capacity is strong, preventing jig deformation. After the reinforcing bars are fixed via the grooves, no manual support or temporary supports are needed, reducing the risk of reinforcing bar swaying and falling, while also reducing the workload of workers and improving on-site construction safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the internal structure of a jig used to control the spacing of the inner and outer reinforcing bars in the web of a box girder.

[0015] Figure 2 A three-dimensional structural diagram of a jig used to control the spacing of the inner and outer reinforcing bars in the web of a box girder;

[0016] Figure 3 This is a three-dimensional structural diagram of a fixing component in a jig used to control the spacing of the inner and outer reinforcement bars in the web of a box girder.

[0017] Figure 4 This is a three-dimensional structural diagram of an adjustment mechanism in a jig used to control the spacing of the inner and outer reinforcing bars in the web of a box girder.

[0018] In the diagram: 1. Base; 2. Support plate; 3. Fixing component; 301. Support frame; 302. Angle steel; 303. Rotating device; 304. First rotating connecting rod; 305. Second rotating connecting rod; 306. First groove; 307. Second groove; 308. Flat iron; 4. Mounting groove; 5. Adjusting mechanism; 501. Motor; 502. Bidirectional threaded rod; 503. Threaded sleeve; 504. Connecting block; 6. Slide groove; 7. Slider; 8. Support block; 9. Controller. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution for a jig used to control the spacing of the inner and outer reinforcing bars in the web of a box girder: It includes a base 1, which serves as the overall load-bearing foundation of the jig, providing an installation platform for components such as the support plates 2 and fixing components 3, ensuring the stability of the overall jig structure. Two support plates 2 are provided on the base 1, which are the direct mounting carriers for the fixing components 3, supporting multiple support frames 301. They can also move with the adjustment mechanism 5 to adapt to box girder webs of different widths. Each support plate 2 is equipped with a fixing component 3, which includes multiple support frames 301 mounted on the support plate 2. Two sets of angle steel 302 are commonly installed inside each support frame 301. Each support frame 301 is equipped with two rotating devices 303. One of the rotating devices 303 is mounted on the support frame 301. Each rotating device 303 is internally connected to a first rotating connecting rod 304. The other end of the first rotating connecting rod 304 is connected to another rotating device 303. The other rotating device 303 is internally connected to a second rotating connecting rod 305. The other ends of multiple second rotating connecting rods 305 are jointly mounted with a flat iron 308. Multiple first grooves 306 are formed inside the two sets of angle steels 302. Multiple second grooves 307 are formed inside the flat iron 308. Both the first grooves 306 and the second grooves 307 are semi-circular and are adapted to the height of the outer circle of the reinforcing bar. They can tightly wrap the reinforcing bar, prevent the reinforcing bar from shifting during the binding process, improve the spacing control accuracy, and are used to clamp the reinforcing bar for fixation during construction.

[0021] The base 1 has an internal mounting groove 4, and an adjustment mechanism 5 is installed inside the mounting groove 4. The adjustment mechanism 5 includes a motor 501 installed inside the mounting groove 4. The motor 501 is the power source of the adjustment mechanism 5. The output end of the motor 501 is connected to a bidirectional threaded rod 502. The end of the bidirectional threaded rod 502 away from the motor 501 is rotatably connected inside the mounting groove 4. The outer wall of the bidirectional threaded rod 502 is threadedly connected to two threaded sleeves 503. The outer wall of each threaded sleeve 503 is connected to a connecting block 504. The side of each connecting block 504 away from the threaded sleeve 503 passes through the mounting groove 4 and is connected to the bottom surface of the support plate 2.

[0022] Each support plate 2 has a slider 7 installed on its bottom surface. The upper surface of the base 1 has a groove 6 that matches the two sliders 7. When the adjustment mechanism 5 moves the support plate 2, the slider 7 will slide along the groove 6, limiting the direction of movement of the support plate 2 and preventing it from shifting or tilting during the adjustment process. This ensures that the two support plates 2 always move in parallel, improving the accuracy of the spacing adjustment. The bottom surface of the base 1 is equipped with four support blocks 8, and the outer wall of the base 1 is equipped with a controller 9.

[0023] The working principle of this utility model is as follows: In use, first operate the controller 9 to start the motor 501 of the adjustment mechanism 5. The motor 501 drives the bidirectional threaded rod 502 to rotate within the mounting groove 4 of the base 1, causing the two threaded sleeves 503 on the bidirectional threaded rod 502 to move the support plate 2 via the connecting block 504. Simultaneously, the slider 7 on the bottom surface of the support plate 2 slides along the sliding groove 6 of the base 1 until the distance between the two support plates 2 matches the width of the web plate, then the motor 501 is turned off. Next, the jig is fixed on the hardened foundation, and before the reinforcing bars are tied, it is aided by… The rotating device 303 of the fixed component 3 drives the first rotating connecting rod 304 and the second rotating connecting rod 305 to flip the flat iron 308 away from the working area; then the box girder web reinforcement is placed in. First, the outer reinforcement is inserted into the first groove 306 of the two sets of angle steels 302 on the support frame 301 and the outer horizontal distribution reinforcement is tied. Then, the rotating device 303 is operated to flip the flat iron 308 into place, and the inner reinforcement is inserted into the second groove 307 of the flat iron 308. Finally, the inner horizontal distribution reinforcement is tied to complete the control of the spacing between the inner and outer reinforcements.

[0024] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A jig for controlling the spacing of the inner and outer reinforcing bars in the web of a box girder, characterized in that, The device includes a base (1), on which two support plates (2) are provided. Each support plate (2) is provided with a fixing component (3). The fixing component (3) includes multiple support frames (301) installed on the support plate (2). Two sets of angle steel (302) are installed inside the multiple support frames (301). Each support frame (301) is provided with two rotating devices (303). One of the rotating devices (303) is installed on the support frame (301). A first rotating connecting rod (304) is connected inside each rotating device (303). Another rotating device (303) is installed at the other end of the first rotating connecting rod (304). A second rotating connecting rod (305) is connected inside the other rotating device (303). A flat iron (308) is installed at the other end of the multiple second rotating connecting rods (305).

2. The jig for controlling the spacing of the inner and outer reinforcing bars in the web of a box girder according to claim 1, characterized in that, Both sets of angle steel (302) have multiple first grooves (306) inside, and the flat iron (308) has multiple second grooves (307) inside. The first grooves (306) and the second grooves (307) are both semi-circular and are used to insert and fix the reinforcing bars during construction.

3. The jig for controlling the spacing of the inner and outer reinforcing bars in the web of a box girder according to claim 1, characterized in that, The base (1) has an installation groove (4) inside, and an adjustment mechanism (5) is provided inside the installation groove (4). The adjustment mechanism (5) includes a motor (501) installed inside the installation groove (4), and the output end of the motor (501) is connected to a bidirectional threaded rod (502).

4. The jig for controlling the spacing of the inner and outer reinforcing bars in the web of a box girder according to claim 3, characterized in that, The end of the bidirectional threaded rod (502) away from the motor (501) is rotatably connected inside the mounting groove (4). The outer wall of the bidirectional threaded rod (502) is threaded with two threaded sleeves (503), and each threaded sleeve (503) has a connecting block (504) connected to its outer wall.

5. A jig for controlling the spacing of the inner and outer reinforcing bars in the web of a box girder according to claim 4, characterized in that, Each of the connecting blocks (504) is connected to the bottom surface of the support plate (2) after passing through the mounting groove (4) on the side away from the threaded sleeve (503).

6. A jig for controlling the spacing of the inner and outer reinforcing bars in the web of a box girder according to claim 5, characterized in that, Each of the support plates (2) has a slider (7) installed on its bottom surface, and the upper surface of the base (1) has a groove (6) that matches the two sliders (7).

7. A jig for controlling the spacing of the inner and outer reinforcing bars in the web of a box girder according to claim 1, characterized in that, Four support blocks (8) are installed on the bottom surface of the base (1), and a controller (9) is installed on the outer wall of the base (1).

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