A support for bridge closure section construction

Abstract

This utility model relates to the technical field of bridge closure sections, specifically disclosing a support structure for bridge closure section construction. The structure includes a bridge, a slide rail at the top of the bridge, a support structure connected to the top of the slide rail, a connecting beam at the top of the slide rail, side plates connected to both ends of the connecting beam, a base plate connected to the bottom of the side plates, a connecting block at the top of the side plates, a sleeve connected to one side of the connecting block, an installation rod connected to the middle of the sleeve, a limit hook at one end of the installation rod, and the sleeve rotatably connected to one side of the connecting block. A rotating annular groove is provided on the side wall of the installation rod. The sleeve in this device allows the installation rod to be flexibly raised and lowered, enabling the limit hook at one end to be raised and lowered to any height, providing stable support for the main reinforcement bars at different heights. This facilitates the construction of the main reinforcement bars of the steel cage without the need for manual control and fixation.

Description

Technical Field

[0001] This utility model relates to the technical field of bridge closure sections, and more specifically, to a support for the construction of bridge closure sections. Background Technology

[0002] The bridge closure section refers to the point where the bridge is built from both ends toward the center and finally the two ends are joined together. When the closure section of the bridge is poured, the side plates on the support need to be used to close the two sides of the closure section, and then the bottom plate of the bridge is used to form a groove, and then the bridge is poured to connect the two sides as a whole.

[0003] However, when the side plates and bottom of the existing construction scaffold are matched to form a groove for in-situ casting, a steel cage needs to be built in the groove before in-situ casting can be carried out. In the early stage of building the steel cage, since there are no other steel bars and supporting structures to fix the position of the main reinforcement, it is necessary to manually control the support temporarily. However, because the space in the groove is limited, it is very inconvenient to manually control the support, making it difficult to flexibly control the stability of the main reinforcement while connecting and fixing the main reinforcement, which affects the efficiency and accuracy of construction. Utility Model Content

[0004] The purpose of this utility model is to provide a support for the construction of bridge closure sections. It solves the problem that when the upper plate of the support and the bottom plate form a groove for pouring in the closure section, the steel cage needs to be built in the narrow groove. In the early stage, the main reinforcement needs to be manually controlled, which makes the construction very inconvenient due to space constraints.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model provides a support frame for the construction of a bridge closure section, including a bridge, a slide rail at the top of the bridge, a support frame connected to the top of the slide rail, a connecting beam at the top of the slide rail, side plates connected to both ends of the connecting beam, a bottom plate connected to the bottom of the side plates, a connecting block at the top of the side plates, a sleeve connected to one side of the connecting block, an installation rod connected to the middle of the sleeve, a limit hook at one end of the installation rod, the sleeve being rotatably connected to one side of the connecting block, and a rotating annular groove provided on the side wall of the installation rod.

[0007] Preferably, there is a certain gap between the bottom of the sleeve and the top of the side plate.

[0008] Preferably, the sleeve includes a lifting ring and a transmission gear, the lifting ring being rotatably connected to the bottom of the sleeve, and the transmission gear being located on one side of the sleeve.

[0009] Preferably, the inner wall of the lifting ring is threaded to match the side wall of the mounting rod.

[0010] Preferably, the transmission gear is a helical gear, and the sleeve is movably connected to one side of the connecting block via the transmission gear connected on one side.

[0011] Preferably, the connecting block includes a rotating gear, a lifting groove, a limiting rod, and a stop rod. The rotating gear is connected to the inner wall of the connecting block, the lifting groove is disposed inside the connecting block, the limiting rod is connected to the middle of the lifting groove, and the stop rod is connected to the top side of the limiting rod.

[0012] Preferably, the rotating gear meshes with the transmission gear, and the lifting groove is a groove that passes through the middle of the rotating gear.

[0013] Preferably, the limiting rod is a rod whose outer wall is threaded to the inner wall of the lifting groove, and the limiting rod is provided with sliding grooves on both sides, and the inner wall of the through hole in the middle of the rotating gear is provided with sliders that cooperate with the sliding grooves.

[0014] Preferably, the rotating annular groove is a circular groove near the top sidewall of the mounting rod.

[0015] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0016] 1. The sleeve in this device allows the installation rod to be raised and lowered flexibly, so that the limiting hook at one end can be raised and lowered to any height to provide stable support for the main reinforcement bars at different heights, so as to facilitate the construction of the main reinforcement bars of the steel cage without the need for manual control and fixation.

[0017] 2. The device is also equipped with a transmission gear, which allows the sleeve to deflect, thereby controlling the angle of the installation rod. Then, in conjunction with the lifting mechanism, the limiting hook at one end of the installation rod can be moved to any position on the side plate, thus providing flexible temporary stable support for the main reinforcement bars of the steel cage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a top view of the structure of this utility model.

[0020] Figure 3 This utility model Figure 2 A magnified structural diagram of point A in the middle.

[0021] Figure 4 This is a schematic diagram of the overall structure of the side plate and mounting rod of this utility model.

[0022] Figure 5 This is a schematic diagram showing the state of the side plate and mounting rod of this utility model.

[0023] Figure 6This is a side view sectional structural diagram of the mounting rod of this utility model.

[0024] Figure 7 This utility model Figure 6 A magnified structural diagram at point B in the middle.

[0025] Reference numerals: 1-Bridge, 2-Slide rail, 201-Bracket, 202-Connecting beam, 3-Side plate, 4-Base plate, 5-Mounting rod, 501-Sleeve cylinder, 5011-Lifting ring, 5012-Transmission gear, 502-Connecting block, 5021-Rotating gear, 5022-Lifting groove, 5023-Limiting rod, 5024-Abutting rod, 503-Limiting hook, 504-Rotating ring groove. Detailed Implementation

[0026] The following is combined Figures 1 to 7 This utility model will be described in detail.

[0027] A support frame for bridge closure section construction includes a bridge 1. A slide rail 2 is provided on the top of the bridge 1. A support frame 201 is connected to the top of the slide rail 2. A connecting beam 202 is provided on the top of the slide rail 2. Side plates 3 are connected to both ends of the connecting beam 202. A bottom plate 4 is connected to the bottom of the side plates 3. A connecting block 502 is provided on the top of the side plates 3. A sleeve 501 is connected to one side of the connecting block 502. An installation rod 5 is connected to the middle of the sleeve 501. A limit hook 503 is provided at one end of the installation rod 5. The sleeve 501 is rotatably connected to one side of the connecting block 502. A rotating annular groove 504 is provided on the side wall of the installation rod 5.

[0028] First, the slide rail 2 is erected at the closure section of bridge 1. Then, the connecting beam 202 is stably erected through the bracket 201 connected to the slide rail 2. Next, the two sides of the closure section are closed by the side plates 3 connected to both ends of the connecting beam 202. The side plates 3 are constructed by connecting multiple links such as the binding of steel bars, the installation of prestressed pipes, and the erection of formwork. Then, the bottom plate is directly welded or bolted to the bottom of bridge 1 below the closure section, so that the closure section will form a groove on one side. Then, the steel cage is erected in the closure section and cement is poured to stably and integrally connect the two sides of the closure section, thus closing the middle span of the bridge.

[0029] Furthermore, a certain gap is left between the bottom of the sleeve 501 and the top of the side plate 3. The sleeve 501 includes a lifting ring 5011 and a transmission gear 5012. The lifting ring 5011 is rotatably connected to the bottom of the sleeve 501, and the transmission gear 5012 is set on one side of the sleeve 501. The inner wall of the lifting ring 5011 is threadedly matched with the side wall of the mounting rod 5.

[0030] When constructing the main reinforcement of the steel cage, the lifting ring 5011 at the bottom of the sleeve 501 is rotated to control the lifting and lowering of the installation rod 5, moving the limit hook 503 to any height. Since the lifting and lowering is controlled by the thread of the lifting ring 5011, the lifting and lowering of the installation rod 5 will not move on its own.

[0031] Furthermore, the transmission gear 5012 is a helical gear, and the sleeve 501 is movably connected to one side of the connecting block 502 via the transmission gear 5012 connected on one side. The connecting block 502 includes a rotating gear 5021, a lifting groove 5022, a limiting rod 5023, and a stop rod 5024. The rotating gear 5021 is connected to the inner wall of the connecting block 502, the lifting groove 5022 is disposed inside the connecting block 502, the limiting rod 5023 is connected to the middle of the lifting groove 5022, and the stop rod 5024... 24 is connected to the top side of the limiting rod 5023. The rotating gear 5021 meshes with the transmission gear 5012. The lifting groove 5022 is a groove that passes through the middle of the rotating gear 5021. The limiting rod 5023 is a rod whose outer wall is threaded to the inner wall of the lifting groove 5022. The limiting rod 5023 has sliding grooves on both sides. The inner wall of the through hole in the middle of the rotating gear 5021 has sliders that cooperate with the sliding grooves. The rotating ring groove 504 is a circular groove near the top side wall of the mounting rod 5.

[0032] After the height adjustment is completed, force is applied to the mounting rod 5, causing its sleeve 501 to rotate in the connecting block 502 via the transmission gear 5012 on one side, thus adjusting the angle of the mounting rod 5. When the transmission gear 5012 rotates, it drives the rotating gear 5021 to rotate. As the rotating gear 5021 rotates, its inner wall, equipped with protrusions that mate with the grooves on both sides of the limiting rod 5023, causes the limiting rod 5023 to also rotate. Simultaneously, because the limiting rod 5023 is threaded into the lifting groove 5022, it moves up and down along the lifting groove 5022 during rotation, without driving the rotating gear 5021, thus changing the angle of the mounting rod 5. The deflection is only possible under the premise that the limiting rod 5023 can rotate and rise. After the angle of the installation rod 5 is adjusted to a suitable position, the abutment rod 5024 is threadedly connected to the top disc side of the limiting rod 5023, so that the abutment rod 5024 abuts against the top of the connecting block 502 to prevent the limiting rod 5023 from continuing to rotate, thereby fixing the angle of the installation rod 5. This allows the angle of the installation rod 5 to be adjusted more comprehensively and without restriction, allowing the limiting hook 503 to move to various positions of the side plate 3, so that the steel bar can slide to the designated position for connection and fixation of the main reinforcement without the need for manual control and stability, thus avoiding the inconvenience of construction and erection due to space constraints in the closure section.

[0033] Meanwhile, a rotating ring groove 504 is also provided on the mounting rod 5. By moving the rotating ring groove 504 to the position of the lifting ring 5011, the thread matching is lost, allowing the mounting rod 5 to rotate and the limit hook 503 to face the other side, thereby providing support and stability to the other side.

[0034] The following is a detailed implementation process of this utility model: First, the slide rail 2 is erected at the closure section of the bridge 1. Then, the connecting beam 202 is stably erected using the bracket 201 connected to the slide rail 2. Next, the two sides of the closure section are closed by the side plates 3 connected to both ends of the connecting beam 202. The side plates 3 are constructed through multiple steps including the binding of reinforcing bars, the installation of prestressed pipes, and the erection of formwork. Then, the bottom plate is directly welded or bolted to the bottom of the bridge 1 below the closure section, thus forming a groove on one side of the closure section. A reinforcing cage is then erected in the closure section, followed by the pouring of cement to secure the bridge. The two sides of the closure section are securely and integrally connected, closing the mid-span of the bridge. During the erection of the main reinforcement cage, the lifting ring 5011 at the bottom of the connecting sleeve 501 is rotated to control the raising and lowering of the installation rod 5, moving the limit hook 503 to any height. Because the lifting ring 5011 is controlled by its thread, the installation rod 5's raising and lowering will not move on its own. After the height adjustment, force is applied to the installation rod 5, causing the connecting sleeve 501 to rotate in the connecting block 502 via the transmission gear 5012 on one side, adjusting the angle of the installation rod 5. When gear 5012 rotates, it drives gear 5021 to rotate. When gear 5021 rotates, its inner wall has protrusions that mate with the grooves on both sides of the limiting rod 5023, causing the limiting rod 5023 to rotate as well. Simultaneously, because the limiting rod 5023 is threaded into the lifting groove 5022, it moves up and down along the lifting groove 5022 during rotation, without driving gear 5021. This ensures that the angle of the mounting rod 5 can only be changed by rotating and moving the limiting rod 5023. Once in the appropriate position, abutment rod 5024 is threaded onto the top disc side of limiting rod 5023, allowing abutment rod 5024 to abut against the top of connecting block 502 to prevent limiting rod 5023 from continuing to rotate, thereby fixing the angle of installation rod 5. This allows installation rod 5 to be adjusted to a more comprehensive and unrestricted angle, enabling limiting hook 503 to move to various positions on side plate 3. This allows the reinforcing bars to slide to designated positions for connection and fixation of the main reinforcing bars without the need for manual control and stability, thus preventing inconvenience in construction and assembly due to space constraints in the closure section.

Claims

1. A support structure for the construction of a bridge closure section, comprising a bridge (1), wherein a slide rail (2) is provided on the top of the bridge (1), a support (201) is connected to the top of the slide rail (2), a connecting beam (202) is provided on the top of the slide rail (2), side plates (3) are connected to both ends of the connecting beam (202), and a bottom plate (4) is connected to the bottom of the bridge (1), characterized in that, A connecting block (502) is provided on the top of the side plate (3). A sleeve (501) is connected to one side of the connecting block (502). An installation rod (5) is connected to the middle of the sleeve (501). A limit hook (503) is provided at one end of the installation rod (5). The sleeve (501) is rotatably connected to one side of the connecting block (502). A rotating annular groove (504) is provided on the side wall of the installation rod (5).

2. The support for bridge closure section construction according to claim 1 is characterized in that a certain gap is left between the bottom of the sleeve (501) and the top of the side plate (3).

3. The support for bridge closure section construction according to claim 1 is characterized in that the sleeve (501) includes a lifting ring (5011) and a transmission gear (5012), the lifting ring (5011) is rotatably connected to the bottom of the sleeve (501), and the transmission gear (5012) is disposed on one side of the sleeve (501).

4. The support for bridge closure section construction according to claim 3 is characterized in that the inner wall of the lifting ring (5011) is threadedly matched with the side wall of the mounting rod (5).

5. The support for bridge closure section construction according to claim 3 is characterized in that the transmission gear (5012) is a helical gear, and the sleeve (501) is movably connected to one side of the connecting block (502) through the transmission gear (5012) connected on one side.

6. A support for bridge closure section construction according to claim 1, characterized in that the connecting block (502) includes a rotating gear (5021), a lifting groove (5022), a limiting rod (5023), and a supporting rod (5024), wherein the rotating gear (5021) is connected to the inner wall of the connecting block (502), the lifting groove (5022) is disposed inside the connecting block (502), the limiting rod (5023) is connected to the middle part of the lifting groove (5022), and the supporting rod (5024) is connected to the top side of the limiting rod (5023).

7. A support for bridge closure section construction according to claim 6, characterized in that the rotating gear (5021) meshes with the transmission gear (5012), and the lifting groove (5022) is a groove penetrating the middle of the rotating gear (5021).

8. A support for bridge closure section construction according to claim 6, characterized in that the limiting rod (5023) is a rod whose outer wall is threadedly matched with the inner wall of the lifting groove (5022), and sliding grooves are provided on both sides of the limiting rod (5023), and sliding blocks that cooperate with the sliding grooves are provided on both sides of the inner wall of the through hole in the middle of the rotating gear (5021).

9. The support for bridge closure section construction according to claim 1 is characterized in that the rotating annular groove (504) is a circular groove on the side wall near the top of the mounting rod (5).

Images