Fixing device of cast-in-place arch bridge formwork

Abstract

The utility model provides a fixing device of a cast-in-place arch bridge formwork, relates to a building construction fixing and supporting technology, and particularly discloses a supporting seat used for supporting a steel formwork and a base installed on a supporting platform, a hinge piece connected with the base in a rotating mode is installed on the supporting seat, and an inclined supporting frame used for supporting the supporting seat is arranged on the base. The side wall, opposite to the steel formwork, of the supporting base is provided with a supporting structure matched with the supporting base in a self-adaptive mode. The supporting seat can rotate by 0-180 degrees on the base under the cooperation of the hinge piece, so that the lower end steel template is supported at different angles; the inclined supporting frame, the base and the supporting seat form a relatively stable triangular structure, so that the supporting effect of the structure on the steel formwork is improved, and the problems of collapse and the like are avoided; the supporting structure can deflect by a certain angle on the supporting seat, so that the supporting structure is self-adaptive to the steel formwork, a gap between the supporting seat and the steel formwork can be reduced, the supporting seat and the steel formwork are attached more tightly, and the steel formwork is supported more stably.

Description

Technical Field

[0001] This utility model relates to the field of building construction fixed support technology, and more specifically, to a fixing device for cast-in-place arch bridge formwork. Background Technology

[0002] Currently, the formwork for cast-in-place arch bridges consists of three parts: bottom formwork, side formwork, and end formwork. The bottom formwork is relatively simple, as it can be fixed by its own weight. The side formwork is fixed using timber or similar materials for easy disassembly. However, the end formwork is heavy but provides relatively little support. Currently, the main methods of fixing the end formwork are: 1. Welding the end formwork to the adjacent side formwork; 2. Binding it to a fixed position with wire. These methods are either cumbersome or unstable. When the end formwork is subjected to significant load, instability can occur at the connection point with the adjacent side formwork, potentially leading to the collapse of the entire formwork system. Utility Model Content

[0003] The purpose of this utility model is to provide a fixing device for cast-in-place arch bridge formwork, which addresses the shortcomings of the existing technology and solves the problems mentioned in the background.

[0004] The technical solution of this utility model is implemented as follows:

[0005] The utility model provides a fixing device for cast-in-place arch bridge formwork, including a support base for supporting steel formwork and a base installed on a support platform. The support base is equipped with a hinge component that is rotatably connected to the base. The base is provided with an inclined support frame for supporting the support base. The side wall of the support base opposite to the steel formwork is provided with a self-adaptive support structure.

[0006] In some technical solutions of this utility model, the support structure includes an installation groove opened on the side wall of the support base, an adjustment seat is installed in the installation groove, and a plurality of adjustment springs connected to the adjustment seat are installed in the installation groove.

[0007] In some technical solutions of this utility model, a locking groove is provided on the side wall of the adjusting seat away from the supporting seat.

[0008] In some technical solutions of this utility model, multiple mounting holes are provided on the side wall of the base, and screws that can be detachably connected to the support platform are embedded in the mounting holes.

[0009] In some technical solutions of this utility model, the inclined support frame includes two support rods arranged in pairs, with a hydraulic push rod installed between the two support rods. One support rod is connected to the base, and the other support rod is hinged to the support seat.

[0010] In some technical solutions of this utility model, a first push rod is embedded in the base, and a locking block that abuts against the support seat is provided on the telescopic end of the first push rod.

[0011] In some technical solutions of this utility model, a first inclined surface is provided on the side wall of the locking block, and a second inclined surface adapted to the first inclined surface is provided on the side wall of the support seat opposite to the locking block, and the first inclined surface and the second inclined surface are in concave-convex fit.

[0012] Compared to existing technologies, this utility model has at least the following advantages or beneficial effects: With the cooperation of the hinge, the support base can rotate 0-180° on the base, thus supporting the steel formwork at different angles; the base is equipped with an inclined support frame, which provides oblique support to the support base. The inclined support frame, the base, and the support base form a relatively stable triangular structure, improving the support effect of this structure on the steel formwork and preventing collapse. The side wall of the support base is equipped with a support structure that can deflect at a certain angle on the support base, allowing the support structure to adapt to its steel formwork, reducing the gap between the support base and the steel formwork, making them fit more tightly, and providing more stable support for the steel formwork. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a side view of the structure of this utility model.

[0015] Figure 3 This is a top view of the structure of this utility model.

[0016] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0017] Reference numerals in the attached drawings: 1. Steel template; 2. Support base; 3. Inclined support frame; 4. Base; 5. Mounting hole; 6. Locking block; 7. Adjusting seat; 8. First push rod; 9. Hinge component; 10. Adjusting spring; 11. Mounting groove; 12. Locking groove. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] Example

[0021] This utility model provides a fixing device for cast-in-place arch bridge formwork, such as... Figures 1-4 As shown, the structure includes a support base 2 for supporting the steel formwork 1. The support base 2 has a rectangular cross-section and is a frame structure formed by welding steel pipes, which increases the structural strength and durability of the support base 2. The base 4 is detachably installed on the end face of the support platform by screws, facilitating later disassembly. A hinge 9 is welded onto the support base 2 and rotatably connected to the base 4. The hinge 9 is a hinge structure, allowing the support base 2 to rotate 0-180° on the base 4, thus supporting the steel formwork 1 at different angles. The base 4 is equipped with an inclined support frame 3, which provides inclined support to the support base 2. The inclined support frame 3, the base 4, and the support base 2 form a relatively stable triangular structure, improving the support effect of this structure on the steel formwork 1 and preventing collapse and other problems. The side wall of the support base 2 is provided with a support structure. The support structure can deflect at a certain angle on the support base 2, so that the support structure and its steel formwork 1 are self-adaptive. This can reduce the gap between the support base 2 and the steel formwork 1, making the two fit more tightly and providing more stable support for the steel formwork 1.

[0022] In some technical solutions of this utility model, the support structure includes an installation groove 11 formed on the side wall of the support base 2. The cross-section of the installation groove 11 is rectangular, and the installation groove 11 is elongated. An adjustment seat 7 is installed inside the installation groove 11. The adjustment seat 7 is a rectangular steel plate. A rubber gasket is installed on the side wall of the adjustment seat 7 that contacts the steel template 1 by means of adhesive. The rubber gasket is used to increase the friction when the adjustment seat 7 contacts the steel template 1, preventing relative slippage between the two. This results in the above structure not being able to guarantee the support effect of the steel template 1. The device is equipped with several adjusting springs 10 connected to the adjusting seat 7. The adjusting springs 10 are fixed to the bottom of the mounting groove 11 by bolts. The other end of the adjusting spring 10 is fixedly connected to the adjusting seat 7 by welding. The size of the adjusting seat 7 is smaller than the size of the mounting groove 11, and the adjusting seat 7 has a movable gap in the mounting groove 11. The adjusting seat 7 can deflect at a certain angle on the support seat 2, so that the support structure and its steel template 1 can adapt to each other. This can reduce the gap between the support seat 2 and the steel template 1, so that the two fit more tightly and provide more stable support for the steel template 1.

[0023] In some technical solutions of this utility model, a locking groove 12 is provided on the side wall of the adjusting seat 7 away from the supporting seat 2. The locking groove 12 is a through groove. When the above structure supports the splice of the two steel templates 1, the outer edges of the two steel templates 1 are embedded in the groove. In this way, when the adjusting seat 7 supports the two steel templates 1 at the same time, it can also lock the two steel templates 1 to prevent them from separating and causing slurry leakage.

[0024] In some technical solutions of this utility model, at least two mounting holes 5 are provided on the side wall of the base 4. The mounting holes are internally threaded holes. A screw rod that can be detachably connected to the support platform is embedded in the mounting hole 5. After the screw rod is threadedly connected to the mounting hole 5, it is threadedly connected to the internally threaded hole on the end face of the support platform. In this way, the stability of the above structure when supporting the steel template 1 can be increased, and the above structure can be prevented from displacing under the action of the reaction force applied to it by the steel template 1, so as to provide the best support for it.

[0025] In some technical solutions of this utility model, the inclined support frame 3 includes two support rods arranged in pairs. The two support rods are hollow tubular structures, and a hydraulic push rod is installed between them. The hydraulic push rod can adopt a structure similar to a jack, with its body embedded in one of the support rods and its telescopic end embedded in the other support rod. One support rod is connected to the base 4, and the other support rod is hinged to the support seat 2. The operator adjusts the relative distance between the two support rods using the hydraulic rod, thereby pushing the support seat 2 closer to the corresponding steel template 1, providing sufficient thrust to the steel template 1 and preventing deformation of the steel template 1 during the casting process.

[0026] In some technical solutions of this utility model, a first push rod 8 is embedded in the base 4, and the first push rod 8 also adopts a structure similar to that of a jack; the body of the first push rod 8 is fixed to the bottom of the base 4, and a locking block 6 that abuts against the support seat 2 is provided on the telescopic end of the first push rod 8. The locking block provides a thrust to the support seat 2, so that when the lower end of the support seat 2 contacts the lower side of the steel template 1, the steel template will not exert too much thrust on the bottom end of the support seat 2, causing the hinge component 9 to fail to rotate.

[0027] In some technical solutions of this utility model, a first inclined surface is provided on the side wall of the locking block 6, and the cross-section of the locking block 6 is a right-angled triangle. The telescopic end of the first push rod 8 is fixedly connected to one of the right-angled sides of the locking block 6. The first inclined surface is the inclined part of the locking block 6. A second inclined surface adapted to the first inclined surface is provided on the side wall of the support base 2 opposite to the locking block 6, and the first inclined surface and the second inclined surface are in a concave-convex fit. Concave and convex scratches are provided on the first inclined surface and the second inclined surface to facilitate the formation of a concave-convex fit relationship when they come into contact with each other; the deflection movement of the support base 2 is restricted, and the support effect of this structure on the steel formwork 1 is improved.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fixing device for cast-in-place arch bridge formwork, characterized in that, It includes a support base (2) for supporting the steel template (1) and a base (4) installed on the support platform. The support base (2) is equipped with a hinge (9) that is rotatably connected to the base (4). The base (4) is provided with an inclined support frame (3) for supporting the support base (2). The side wall of the support base (2) opposite to the steel template (1) is provided with a self-adaptive support structure.

2. The fixing device for cast-in-place arch bridge formwork according to claim 1, characterized in that, The support structure includes a mounting groove (11) on the side wall of the support base (2), an adjusting seat (7) is installed in the mounting groove (11), and a plurality of adjusting springs (10) connected to the adjusting seat (7) are installed in the mounting groove (11).

3. The fixing device for cast-in-place arch bridge formwork according to claim 2, characterized in that, The adjusting seat (7) has a locking groove (12) on its side wall away from the support seat (2).

4. The fixing device for cast-in-place arch bridge formwork according to claim 1, characterized in that, The base (4) has multiple mounting holes (5) on its side wall, and each mounting hole (5) is fitted with a screw that can be detachably connected to the support platform.

5. The fixing device for cast-in-place arch bridge formwork according to claim 1, characterized in that, The inclined support frame (3) includes two support rods arranged in pairs, with a hydraulic push rod installed between the two support rods. One support rod is connected to the base (4), and the other support rod is hinged to the support seat (2).

6. The fixing device for cast-in-place arch bridge formwork according to claim 1, characterized in that, The base (4) is embedded with a first push rod (8), and the telescopic end of the first push rod (8) is provided with a locking block (6) that abuts against the support seat (2).

7. The fixing device for cast-in-place arch bridge formwork according to claim 6, characterized in that, The locking block (6) has a first inclined surface on its side wall, and the support base (2) has a second inclined surface on its side wall opposite to the locking block (6) that is adapted to the first inclined surface. The first inclined surface and the second inclined surface are in a concave-convex fit.

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