A cantilever continuous beam closure auxiliary device

Abstract

This utility model discloses an auxiliary device for the closure of a cantilever continuous beam, relating to the field of bridge construction engineering technology. It addresses the problem in existing technologies where a rigid frame is welded using pre-embedded steel plates during continuous beam closure. While this ensures the stability of the rigid frame after installation, it is difficult to remove the frame after closure, and the pre-embedded steel plates can also affect the structure of the continuous beam. The device includes multiple sets of pre-embedded parts and multiple fixing parts embedded within the continuous beam. Each set contains at least two pre-embedded parts, which are bolted structures. The fixing parts are connected to the bolted pre-embedded parts. The inner walls of the fixing parts have symmetrically arranged convex grooves, and each groove has a convex block slidably connected to its inner wall. Limiting blocks are fixedly connected between the convex blocks. This utility model offers advantages such as high stability during continuous beam closure and convenient assembly / disassembly.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction engineering technology, and more specifically, to an auxiliary device for the closure of a cantilever continuous beam. Background Technology

[0002] Cantilever continuous beam closure is a construction method in bridge engineering, mainly used for the construction of multi-span beam bridges. The basic principle of this technology is that during the bridge construction process, the continuous beams of the bridge are first erected step by step using the cantilever method. After all the sections are completed, the closure operation is carried out to ensure the integrity and stability of the structure. Before the closure section is poured, the stiffening frame needs to be welded on the day with the lowest temperature. The stiffening frame holds the two ends together to prevent the continuous beams from deforming due to temperature changes. The connection between the stiffening frame and the cantilever ends on both sides is achieved by welding pre-embedded steel plates.

[0003] In the existing technology, the method of welding the stiffening frame by pre-embedded steel plates during the closure of continuous beams ensures the stability of the stiffening frame after installation. However, the stiffening frame is difficult to remove after the continuous beam is closed, and the pre-embedded steel plates will also affect the structure of the continuous beam. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide an auxiliary device for the closure of cantilever continuous beams. This solves the problem that in the existing technology, when closure of continuous beams, the method of welding a stiffening frame by pre-embedded steel plates ensures the stability of the stiffening frame after installation, but the stiffening frame is difficult to remove after the continuous beam is closed, and the pre-embedded steel plates will also affect the structure of the continuous beam.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a cantilever continuous beam closure auxiliary device, characterized in that it includes multiple sets of embedded parts and multiple fixing parts pre-embedded in the continuous beam, each set of embedded parts having at least two parts, the embedded parts being bolt structures, the fixing parts being connected to the bolt structure embedded parts, the inner wall of the fixing parts having symmetrically arranged convex grooves, the inner wall of each convex groove having convex blocks slidably connected, the convex blocks being fixedly connected to each other with limit blocks, the end of each limit block having a slot, the fixing parts having symmetrically arranged connecting rods inside, one end of each connecting rod passing through the limit block and being threadedly connected to the point through which it passes, the other end of each connecting rod passing through the inner wall of the fixing parts to the outside and being rotatably connected to the point through which it passes, and the outside of the fixing parts having a transmission mechanism for controlling the rotation of the connecting rods; The transmission mechanism includes a driven gear fixedly connected to one end of the connecting rod away from the fixing member. The outer wall of the fixing member is provided with a locking groove, and a gear column is provided inside the locking groove. A cylindrical moving gear is fixedly connected to the outer wall of the gear column, and the driven gear meshes with the moving gear.

[0006] Preferably, the inner end wall of the locking groove is provided with a movable groove that extends into the interior of the fixing member. One end of the gear column located in the locking groove passes through the movable groove and is movably fitted against the inner wall of the movable groove. The inner wall of the locking groove is fixedly connected with a plurality of teeth that can mesh with the moving gear. When the moving gear moves, it is always meshed with the driven gear.

[0007] Preferably, a retaining ring is fixedly connected to the outer wall of the gear column where it passes through the movable groove to the inside of the fixing member. When the retaining ring moves with the gear column, its outer wall can block each other with the inner wall of the fixing member.

[0008] Preferably, a rotating ring is fixedly connected to the end of the gear column away from the fixing member, and the rotating ring is used to facilitate the rotation of the gear column.

[0009] Preferably, the shape of the slot corresponds to the shape of the end of the stiffening frame, and is used to stably engage the stiffening frame.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by setting up lifting equipment, brackets, buffer springs, support plates, buffer rods, limiting tubes, limiting grooves, threaded grooves, ball bearings, and a one-way limiting mechanism, pre-embeds multiple sets of embedded parts at the continuous beam requiring closure. Then, the bolt-structured embedded parts are connected to the fixing parts, and the two ends of the stiffening frame are clamped by the slots. The transmission mechanism causes the limiting blocks to pass through the slots and abut against the stiffening frame, thus completing the installation of the stiffening frame. Subsequently, the continuous beam can be closed and poured. After closure, the stiffening frame can be released by the transmission mechanism, and the fixing parts can be removed. It should be noted that the bolt-structured embedded parts not only have a small impact on the continuous beam structure, but also serve as internal reinforcements for the continuous beam. Moreover, the entire process of installing and removing the fixing parts and stiffening frame is simple and convenient, reducing the labor intensity of workers and increasing the efficiency of bridge closure.

[0011] 2. In this utility model, by pushing the gear column to move in the movable groove, the moving gear can simultaneously mesh with the driven gear and the slotted gear, so that neither the moving gear nor the driven gear can rotate, thus preventing the limiting block from moving. This ensures the stability of the limiting block when it engages with the stiffening frame through the slot, preventing the stiffening frame from loosening and being unable to push the two ends of the continuous beam, and further preventing the continuous beam from deforming. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the fixing component in this utility model; Figure 3 This is a schematic diagram of the disassembled structure of the limiting block in this utility model; Figure 4 This is a schematic diagram of the disassembled structure of the gear column in this utility model.

[0013] Explanation of the labels in the diagram: 1. Embedded part; 2. Fixing part; 3. Convex groove; 4. Convex block; 5. Limiting block; 6. Slot; 7. Connecting rod; 8. Driven gear; 9. Locking groove; 10. Gear post; 11. Moving gear; 12. Movable groove; 13. Groove tooth; 14. Retaining ring; 15. Rotary ring. Detailed Implementation

[0014] like Figures 1 to 4 As shown, this utility model relates to a cantilever continuous beam closure auxiliary device, characterized in that it includes multiple sets of embedded parts 1 and multiple fixing parts 2 pre-embedded in the continuous beam. Each set of embedded parts 1 has at least two parts. The embedded parts 1 are bolt structures. The fixing parts 2 are connected to the bolt structure embedded parts 1. The inner wall of the fixing parts 2 is provided with symmetrically arranged convex grooves 3. The inner wall of each convex groove 3 is slidably connected with a convex block 4. Limiting blocks 5 are fixedly connected between the convex blocks 4. The end of the limiting block 5 is provided with a slot 6. The fixing parts 2 are provided with symmetrically arranged connecting rods 7. One end of the connecting rod 7 passes through the limiting block 5 and is threadedly connected to the point through which it is passed. The other end of the connecting rod 7 passes through the inner wall of the fixing parts 2 to its outside and is rotatably connected to the point through which it is passed. The outside of the fixing parts 2 is provided with a transmission mechanism for controlling the rotation of the connecting rods 7. The transmission mechanism includes a driven gear 8 fixedly connected to one end of the connecting rod 7 away from the fixed member 2. The outer wall of the fixed member 2 is provided with a locking groove 9. A gear column 10 is provided inside the locking groove 9. A columnar moving gear 11 is fixedly connected to the outer wall of the gear column 10. The driven gear 8 and the moving gear 11 mesh with each other. Specifically, multiple sets of embedded parts 1 are pre-embedded at the continuous beams that require closure, and then the bolt-structured embedded parts 1 are connected to the fixing parts 2. The two ends of the rigid frame are clamped by the slots 6, which are opened at the ends of the limiting blocks 5. The workers can rotate the gear 11 column 10, so that the gear column 10 drives the moving gear 11 to rotate synchronously. The rotation of the moving gear 11 drives the meshing driven gear 8 to rotate, and the rotation of the driven gear 8 drives the connecting rod 7 to rotate. The connecting rod 7 is threadedly connected to the limiting blocks 5, and the convex block 4 fixedly connected to the outer wall of the limiting blocks 5 is in the convex position. The groove 3 is slidable, so the limiting block 5 can move linearly along the convex groove 3, thereby making the locking groove 6 in the limiting groove stably engaged with the rigid frame. Then the continuous beam can be poured for closure. After the closure is completed, the rigid frame can be released through the transmission mechanism, and then the fixing part 2 can be removed. It should be noted that the embedded part 1 of the bolt structure not only has little impact on the continuous beam structure, but can also serve as the internal reinforcement of the continuous beam. Moreover, the entire process of installing and removing the fixing part 2 and the rigid frame is simple and convenient, reducing the labor intensity of the workers and increasing the efficiency of bridge closure.

[0015] Furthermore, the inner end wall of the locking groove 9 is provided with a movable groove 12 that extends into the interior of the fixing member 2. One end of the gear column 10 located in the locking groove 9 passes through the movable groove 12 and is movably fitted against the inner wall of the movable groove 12. The inner wall of the locking groove 9 is fixedly connected with a plurality of slotted teeth 13 that can mesh with the moving gear 11. When the moving gear 11 moves, it is always meshed with the driven gear 8. Specifically, by pressing the gear post 10, the gear post 10 moves within the movable groove 12 and drives the moving gear 11 to move into the locking groove 9 and mesh with the slotted teeth 13. This causes the moving gear 11 to mesh with both the driven gear 8 and the slotted teeth 13 simultaneously, preventing both the moving gear 11 and the driven gear 8 from rotating. Consequently, the limiting block 5 does not move, ensuring the stability of the limiting block 5 when it engages with the stiffening frame through the slot 6. This prevents the stiffening frame from loosening and being unable to push the ends of the continuous beam, further preventing deformation of the continuous beam. By pulling the gear post 10 in the opposite direction, the moving gear 11 can be disengaged from the slotted teeth 13.

[0016] Furthermore, a retaining ring 14 is fixedly connected to the outer wall of the gear column 10 through the movable groove 12 to the inside of the fixing member 2. When the retaining ring 14 moves with the gear column 10, its outer wall can block each other with the inner wall of the fixing member 2. Specifically, the retaining ring 14 is designed to prevent the gear post 10 from being accidentally pulled out of the movable slot 12, thereby increasing stability.

[0017] Furthermore, a rotating ring 15 is fixedly connected to the end of the gear column 10 away from the fixing member 2. The rotating ring 15 is used to facilitate the rotation of the gear column 10. Specifically, the rotating ring 15 allows staff to directly rotate the gear 11 column 10.

[0018] Furthermore, the shape of the slot 6 corresponds to the shape of the end of the stiffening frame, which is used to stabilize the stiffening frame. Specifically, the shape of the slot 6 corresponds to the shape of the end of the rigid frame, which increases the stability when the slot 6 is engaged with the rigid frame.

[0019] Working Principle: This embodiment provides an auxiliary device for the closure of a cantilever continuous beam. In use, multiple sets of embedded parts 1 are pre-embedded at the continuous beam where closure is required. Then, the bolt-structured embedded parts 1 are connected to the fixing parts 2. The two ends of the rigid frame are secured by slots 6, which are located at the ends of the limiting blocks 5. Workers can rotate the gear 11 column 10, causing the gear column 10 to drive the moving gear 11 to rotate synchronously. The rotation of the moving gear 11 drives the meshing driven gear 8 to rotate, which in turn drives the connecting rod 7 to rotate. The connecting rod 7 is threadedly connected to the limiting block 5, and the limiting block 5 is externally... The convex block 4, which is fixed to the wall, can slide within the convex groove 3. Therefore, the limiting block 5 can move linearly along the convex groove 3, thereby making the locking groove 6 within the limiting groove stably engaged with the rigid frame. Then, the continuous beam can be poured for closure. After closure, the rigid frame can be released through the transmission mechanism, and then the fixing part 2 can be removed. It should be noted that the embedded part 1 of the bolt structure not only has little impact on the continuous beam structure, but can also serve as an internal rib of the continuous beam. Moreover, the entire process of installing and removing the fixing part 2 and the rigid frame is simple and convenient, reducing the labor intensity of workers and increasing the efficiency of bridge closure.

[0020] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A cantilever continuous beam closure auxiliary device, characterized in that, The device includes multiple sets of embedded parts (1) and multiple fasteners (2) embedded in a continuous beam. Each set of embedded parts (1) has at least two parts. The embedded parts (1) are bolt structures. The fasteners (2) are connected to the bolt structures of the embedded parts (1). The inner wall of the fasteners (2) is provided with symmetrically arranged convex grooves (3). The inner wall of each convex groove (3) is slidably connected with a convex block (4). The convex blocks (4) are fixedly connected with a limit block (5). The end of the limit block (5) is provided with a slot (6). The inside of the fasteners (2) is provided with symmetrically arranged connecting rods (7). One end of the connecting rod (7) passes through the limit block (5) and is threaded to the point through which it is passed. The other end of the connecting rod (7) passes through the inner wall of the fasteners (2) to the outside and is rotatably connected to the point through which it is passed. The outside of the fasteners (2) is provided with a transmission mechanism for controlling the rotation of the connecting rods (7).

2. The continuous beam closure auxiliary device of claim 1, wherein, The transmission mechanism includes a driven gear (8) fixedly connected to one end of the connecting rod (7) away from the fixing member (2). The outer wall of the fixing member (2) is provided with a locking groove (9). A gear column (10) is provided inside the locking groove (9). A cylindrical moving gear (11) is fixedly connected to the outer wall of the gear column (10). The driven gear (8) and the moving gear (11) mesh with each other.

3. The continuous beam closure auxiliary device of claim 2, wherein, The inner end wall of the locking groove (9) is provided with a movable groove (12) that extends into the inside of the fixing member (2). One end of the gear column (10) located in the locking groove (9) passes through the movable groove (12) and is movably fitted with the inner wall of the movable groove (12). The inner wall of the locking groove (9) is fixedly connected with a plurality of slotted teeth (13) that can mesh with the moving gear (11). When the moving gear (11) moves, it always meshes with the driven gear (8).

4. The continuous beam closure auxiliary device of claim 3, wherein, The gear column (10) passes through the movable groove (12) and is fixedly connected to the outer wall of the fixed member (2). When the gear column (10) moves with the gear column (10), its outer wall can block each other with the inner wall of the fixed member (2).

5. The continuous beam closure auxiliary device of claim 4, wherein, A rotating ring (15) is fixedly connected to one end of the gear column (10) away from the fixing member (2), and the rotating ring (15) is used to conveniently rotate the gear column (10).

6. The continuous beam closure auxiliary device of claim 1, wherein, The shape of the slot (6) corresponds to the shape of the end of the stiffening frame and is used to stabilize the stiffening frame.

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