A concrete structure repair and reinforcement device suitable for different sizes

Abstract

The utility model relates to a concrete structure repair reinforcing device suitable for different sizes, and relates to the technical field of building engineering, a plurality of prestressed steel bars are fixedly connected between the left and right two fixed plates, the mounting plates of the front and back sides are connected through a self-adapting mechanism, the fixed frame is fixedly arranged on the two mounting plates in the middle, a lifting frame is movably arranged in the movable slot of the fixed frame, a movable plate is fixedly arranged on the side wall of the lifting frame, the prestressed steel bar is arranged on the movable plate, a threaded rod is rotatably inserted into the lifting frame through thread, the lower end of the threaded rod is rotatably inserted into the fixed frame through a bearing, the fixed frame is provided with a synchronous control mechanism connected with the threaded rod, not only has good versatility, can be adapted to concrete beams of various thicknesses, but also can apply the same prestress of the same size to the corresponding same positions on the front and back sides of the concrete beam, guarantees the stability and reliability of prestress application, effectively improves reinforcing quality and structural safety.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a device for repairing and reinforcing concrete structures of different sizes. Background Technology

[0002] In the field of construction engineering, concrete structures, as the core load-bearing system, are prone to deterioration, crack development, and excessive deformation due to long-term exposure to loads, environmental erosion, and material aging. Among these, the repair and reinforcement of concrete beams is particularly important. Prestressed reinforcement technology is widely used because it can effectively improve the load-bearing capacity of components and reduce deflection and crack development. However, existing prestressed reinforcement devices have fixed structural dimensions, making it difficult to adapt to concrete beams of different thicknesses. Since concrete beams in construction projects have diverse cross-sectional dimensions, custom-made devices are required during construction, resulting in poor equipment versatility and low turnover rate. At the same time, existing reinforcement devices cannot ensure that the prestress magnitude is completely consistent at corresponding positions on the front and back sides of the beam during the prestressing process, affecting the reliability of reinforcement quality. Therefore, there is an urgent need for a repair and reinforcement device that can adapt to concrete structures of different sizes. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a reasonably designed device for repairing and reinforcing concrete structures of different sizes, thereby solving the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes mounting plates, and three corresponding mounting plates are fixedly installed on both the front and rear sides of the concrete beam;

[0005] It also includes:

[0006] The fixing plates consist of four plates, which are respectively fixedly installed on the side walls of the four mounting plates on the left and right sides. Several prestressed steel bars are fixedly connected between the two fixing plates on the left and right sides. The mounting plates on the front and rear sides are connected by a self-adaptive mechanism.

[0007] The fixed frame consists of two fixed frames, which are respectively fixedly installed on the two middle mounting plates. A lifting frame is movably installed in the movable slot opened on the fixed frame. A movable plate is fixedly installed on the side wall of the lifting frame, and the prestressed steel bars are passed through the movable plate.

[0008] The threaded rods consist of two rods, which are respectively inserted into the lifting frame by means of threaded rotation. The lower end of the threaded rods is inserted into the fixed frame by means of bearing rotation. The fixed frame is equipped with a synchronous control mechanism connected to the threaded rods.

[0009] Furthermore, the self-adaptive mechanism includes:

[0010] Four fixing strips are fixedly installed on the left and right sides of the bottom of the two corresponding mounting plates at the front and rear, and the connecting rod is movably inserted into the fixing strips on the front and rear sides.

[0011] There are four connecting rings, which are movably disposed in four fixed bars. Springs connected to the connecting rings are fixedly disposed in the fixed bars. The connecting rings are fixedly sleeved on the ends of the connecting rods.

[0012] Furthermore, the synchronization control mechanism includes:

[0013] Two rotating rods are respectively inserted into two fixed frames via bearings. A first bevel gear is fixedly sleeved on the rotating rod, and a second bevel gear that meshes with the first bevel gear is fixedly sleeved at the lower end of the threaded rod.

[0014] A synchronizing rod is fixedly installed at the rear end of the front rotating rod and movably inserted into the rear rotating rod. An adjustment handle is fixedly installed at the front end of the front rotating rod at the front position of the fixed frame.

[0015] Furthermore, the adjustment handle has a through hole, and an extension rod is movably inserted into the through hole.

[0016] Furthermore, several reinforcing ribs are fixedly installed on one side wall of the fixing plate, and the reinforcing ribs are fixedly installed on the mounting plate.

[0017] Furthermore, two reinforcing ribs are fixedly provided on the mounting plate, and both the mounting plate and the reinforcing ribs are configured in an "L" shape.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the concrete structure repair and reinforcement device adapted to different sizes described in this utility model not only has good versatility and can be adapted to concrete beams of various thicknesses, but also can apply the same amount of prestress at the corresponding positions on the front and rear sides of the concrete beam, ensuring the stability and reliability of the prestress application, and effectively improving the reinforcement quality and structural safety. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a cross-sectional view of the fixing strip in this utility model.

[0021] Figure 3 This is an exploded view of the parts of the mounting plate, fixing frame, lifting frame, movable plate, threaded rod and synchronous control mechanism in this utility model.

[0022] Figure 4 yes Figure 3 Enlarged view of part A in the image.

[0023] Explanation of reference numerals in the attached figures:

[0024] Mounting plate 1, fixing plate 2, prestressed steel bar 3, self-adaptive mechanism 4, fixing strip 4-1, connecting rod 4-2, connecting ring 4-3, spring 4-4, fixing frame 5, lifting frame 6, movable plate 7, threaded rod 8, synchronous control mechanism 9, rotating rod 9-1, first bevel gear 9-2, second bevel gear 9-3, synchronous rod 9-4, adjusting handle 9-5, through hole 10, extension rod 11, reinforcing rib plate 12, reinforcing rib strip 13. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] like Figures 1-4 As shown, the specific embodiment adopts the following technical solution: it includes an installation plate 1, and three corresponding installation plates 1 are fixedly installed on the front and rear sides of the concrete beam. Two reinforcing ribs 13 are fixedly installed on the installation plate 1. Both the installation plate 1 and the reinforcing ribs 13 are "L" shaped structures. The structural strength of the installation plate 1 can be effectively improved by using the reinforcing ribs 13 and the "L" shaped structure, thereby making the reinforcement of the concrete beam more stable.

[0027] It also includes:

[0028] The fixing plate 2 consists of four plates, which are respectively fixedly installed on the side walls of the four mounting plates 1 on the left and right sides. Several prestressed steel bars 3 are fixedly connected between the two fixing plates 2 on the left and right sides. The mounting plates 1 on the front and rear sides are connected by a self-adaptive mechanism 4. Several reinforcing ribs 12 are fixedly installed on one side wall of the fixing plate 2 and are fixedly installed on the mounting plate 1. The reinforcing ribs 12 can improve the connection structure strength between the fixing plate 2 and the mounting plate 1, so that the fixing plate 2 can have stronger load-bearing capacity.

[0029] Fixed frame 5, there are two fixed frames 5, which are respectively fixedly installed on the two middle mounting plates 1. A lifting frame 6 is movably installed in the movable groove opened on the fixed frame 5. A movable plate 7 is fixedly installed on the side wall of the lifting frame 6. The prestressed steel bar 3 passes through the movable plate 7.

[0030] Two threaded rods 8 are inserted into the lifting frame 6 by means of threaded rotation. The lower end of the threaded rod 8 is inserted into the fixed frame 5 by means of bearing rotation. The fixed frame 5 is provided with a synchronous control mechanism 9 connected to the threaded rod 8.

[0031] The self-adaptive mechanism 4 includes:

[0032] Four fixing strips 4-1 are fixedly installed on the left and right sides of the bottom of the two corresponding mounting plates 1 at the front and rear, and the connecting rods 4-2 are movably inserted into the fixing strips 4-1 on the front and rear sides.

[0033] Connecting rings 4-3, there are four connecting rings 4-3, which are movably set in four fixing bars 4-1 respectively. A spring 4-4 ​​connected to the connecting ring 4-3 is fixedly set in the fixing bar 4-1. The connecting ring 4-3 is fixedly sleeved on the end of the connecting rod 4-2. The self-adaptive mechanism 4 can not only realize the movable connection of the front and rear mounting plates 1 to ensure the corresponding position of the front and rear mounting plates 1 on the concrete beam, but also use the force generated by the compression of the spring 4-4 ​​on the connecting ring 4-3 and the fixing bar 4-1 to make the front and rear mounting plates 1 clamped on the concrete beam during the installation process, so as to improve the assembly efficiency of the device on the concrete beam.

[0034] The synchronization control mechanism 9 includes:

[0035] Rotating rod 9-1, there are two rotating rods 9-1, which are respectively inserted into two fixed frames 5 through bearings. A first bevel gear 9-2 is fixedly sleeved on the rotating rod 9-1, and a second bevel gear 9-3 that meshes with the first bevel gear 9-2 is fixedly sleeved at the lower end of the threaded rod 8.

[0036] Synchronizing rod 9-4 is fixedly installed at the rear end of front rotating rod 9-1 and movably inserted into rear rotating rod 9-1. Adjusting handle 9-5 is fixedly installed at the front end of front rotating rod 9-1 at the front position of fixed frame 5. Synchronizing control mechanism 9 can realize synchronous driving of threaded rods 8 on both sides to ensure that prestressed steel bars 3 on both sides can apply the same amount of prestress to concrete beam. Through hole 10 is opened on adjusting handle 9-5, and extension rod 11 is movably inserted in through hole 10. The extension rod 11 is used to extend the lever arm of adjusting handle 9-5, and through the lever principle, the rotation of adjusting handle 9-5 can be made more labor-saving.

[0037] When using this utility model, pull the mounting plates 1 on both the front and rear sides in opposite directions, causing the fixing strip 4-1 to move on the connecting rod 4-2, and the spring 4-4 ​​to be compressed by the connecting ring 4-3. Then, place the mounting plates 1 on the front and rear sides of the concrete beam respectively. At this time, the force generated by the compression of the spring 4-4 ​​can be applied to the concrete beam through the mounting plates 1, realizing the clamping of the mounting plates 1 on the concrete beam. Then, use bolts to fix the mounting plates 1 to the concrete beam. After that, the adjustment handle 9-5 can be rotated to adjust... By rotating the front rotating rod 9-1 via 9-5 and using the transmission of the synchronizing rod 9-4, the front and rear rotating rods 9-1 can rotate synchronously. The rotating rod 9-1 drives the first bevel gear 9-2 to rotate. The first bevel gear 9-2, through meshing with the second bevel gear 9-3, drives the threaded rod 8 to rotate. The rotation of the threaded rod 8 enables the lifting frame 6 to move. The lifting frame 6 can drive the movable plate 7 to move downward, so that the prestressed steel bars 3 are under tension, providing upward support for the concrete beam and realizing the repair and reinforcement of the concrete beam.

[0038] Compared with the prior art, the beneficial effects of this utility model are:

[0039] Through the cooperation of the fixing strip 4-1, connecting rod 4-2 and connecting ring 4-3 in the self-adaptive mechanism 4, not only can the corresponding positions of the front and rear mounting plates 1 on the front and rear sides of the concrete beam be guaranteed, but the elastic force of the spring 4-4 ​​can also realize the automatic clamping of the mounting plates 1 on concrete beams of different thicknesses without the need for additional tools to assist in fixing, which greatly improves the assembly efficiency and adaptability of the device on concrete beams of different sizes.

[0040] The synchronous control mechanism 9 achieves synchronous drive of the threaded rods 8 on both sides through the transmission cooperation of the rotating rod 9-1, the bevel gear pair, and the synchronous rod 9-4. Combined with the linkage design of the lifting frame 6, the movable plate 7 and the prestressed steel bar 3, it ensures that the prestressed steel bars 3 on both sides apply the same amount of prestress to the concrete beam, effectively avoiding problems such as additional bending moment and stress concentration caused by uneven prestress, and ensuring the stability and reliability of the reinforcement effect.

[0041] During the adjustment of the rotation of handle 9-5, an extension rod 11 can be inserted into the through hole 10 to extend the lever arm of the adjustment handle 9-5. By utilizing the lever principle, the rotation adjustment of the threaded rod 8 can be made easier, reducing the operational intensity of the construction personnel.

[0042] The combination structure of the "L"-shaped mounting plate 1 and the reinforcing rib 13, as well as the connection design between the fixing plate 2 and the reinforcing rib 12, significantly improves the structural strength of the mounting plate 1 and the load-bearing capacity of the fixing plate 2, ensuring that the device is not easily deformed when subjected to prestressed loads, and provides reliable structural support for the stable reinforcement of concrete beams.

[0043] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for repairing and reinforcing concrete structures of different sizes, comprising mounting plates (1), with three corresponding mounting plates (1) fixedly installed on both the front and rear sides of the concrete beam. Its features are, It also includes: Fixed plate (2), there are four fixed plates (2), which are respectively fixed on the side walls of the four mounting plates (1) on the left and right sides. Several prestressed steel bars (3) are fixedly connected between the two fixed plates (2) on the left and right sides. The mounting plates (1) on the front and rear sides are connected by a self-adaptive mechanism (4). The fixed frame (5) consists of two fixed frames, which are respectively fixedly installed on the two middle mounting plates (1). The movable slot on the fixed frame (5) is movably installed with a lifting frame (6). The side wall of the lifting frame (6) is fixedly installed with a movable plate (7). The prestressed steel bars (3) are passed through the movable plate (7). Two threaded rods (8) are inserted into the lifting frame (6) by means of thread rotation. The lower end of the threaded rod (8) is inserted into the fixed frame (5) by means of bearing rotation. The fixed frame (5) is provided with a synchronous control mechanism (9) connected to the threaded rod (8).

2. The device for repairing and reinforcing concrete structures of different sizes according to claim 1, characterized in that: The self-adaptive mechanism (4) includes: Fixed strips (4-1), there are four fixed strips (4-1), which are respectively fixedly installed on the bottom left and right sides of the two corresponding mounting plates (1) at the front and rear, and the connecting rods (4-2) are movably inserted into the fixed strips (4-1) on the front and rear sides; There are four connecting rings (4-3), which are movably installed in four fixing bars (4-1). A spring (4-4) connected to the connecting ring (4-3) is fixedly installed in the fixing bar (4-1). The connecting ring (4-3) is fixedly sleeved on the end of the connecting rod (4-2).

3. The device for repairing and reinforcing concrete structures of different sizes according to claim 1, characterized in that: The synchronization control mechanism (9) includes: Rotating rod (9-1), there are two rotating rods (9-1), which are respectively inserted into two fixed frames (5) through bearings. A first bevel gear (9-2) is fixedly sleeved on the rotating rod (9-1), and a second bevel gear (9-3) that meshes with the first bevel gear (9-2) is fixedly sleeved at the lower end of the threaded rod (8). Synchronizing rod (9-4) is fixedly installed at the rear end of the front rotating rod (9-1) and is movably inserted into the rear rotating rod (9-1). An adjusting handle (9-5) is fixedly installed at the front end of the front rotating rod (9-1) at the front position of the fixing frame (5).

4. The device for repairing and reinforcing concrete structures of different sizes according to claim 3, characterized in that: The adjustment handle (9-5) has a through hole (10), and an extension rod (11) is movably inserted into the through hole (10).

5. The device for repairing and reinforcing concrete structures of different sizes according to claim 1, characterized in that: Several reinforcing ribs (12) are fixedly installed on one side wall of the fixing plate (2), and the reinforcing ribs (12) are fixedly installed on the mounting plate (1).

6. The device for repairing and reinforcing concrete structures of different sizes according to claim 1, characterized in that: Two reinforcing ribs (13) are fixedly provided on the mounting plate (1), and both the mounting plate (1) and the reinforcing ribs (13) are "L" shaped structures.

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