Steel box beam pushing limiting device

Abstract

The utility model discloses a steel box beam pushing limiting device which comprises a base, two first steel box beam top plates are fixedly connected to the upper surface of the base, symmetrical first sliding grooves are formed in the two first steel box beam top plates, a first sliding block is slidably connected to the interior of each first sliding groove, and a second sliding block is slidably connected to the interior of each first sliding block. According to the device, through cooperation of supporting legs, universal sliding wheels, a pushing handle, a third electric telescopic rod, a stabilizing plate and a first anti-skid layer, a worker can conveniently move the device, the worker can conveniently stabilize the device, and the device is convenient to use and high in practicability. Through cooperation of a first reinforcing rod, a second sliding groove, a second sliding block and a second reinforcing rod, the overall strength of the equipment can be improved, and through cooperation of a first steel box beam top plate, a second steel box beam top plate, a first electric telescopic rod and a steel box beam supporting plate, the equipment can conduct automatic jacking operation on a steel box beam.

Description

Technical Field

[0001] This utility model relates to the field of steel box girder construction technology, and in particular to a steel box girder jacking and limiting device. Background Technology

[0002] Steel box girders, also known as steel plate box girders, are a common structural form for long-span bridges. They are generally used in the main structure of buildings and bridges, primarily serving as the main load-bearing component. There are three existing methods for installing steel box girders: scaffolding installation, cantilever assembly, and jacking installation. When constructing cable-stayed bridges with large spans and small horizontal curves, a steel box girder jacking and limiting device is required. The steel box girder jacking method refers to assembling the girder segment by segment at the bridgehead and using jacks to jack it longitudinally, allowing the girder to be positioned through the temporary sliding bearing surfaces of each pier top or local scaffolding. This method is suitable for continuous bridges with large spans and uniform cross-sections, especially in valleys with complex underpass environments and projects requiring cross-traffic access.

[0003] In bridge jacking construction, multiple jacks are often used in conjunction with support beams to push the steel box girder vertically. Due to stress issues, safety accidents such as support beam detachment may occur, resulting in low construction efficiency. Moreover, the current steel box girder jacking limit device is large in size and has low overall strength, which greatly reduces the practicality of the device. Therefore, we propose a steel box girder jacking limit device to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a steel box girder jacking and limiting device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A steel box girder pushing and limiting device includes a base. Two first steel box girder top plates are fixedly connected to the upper surface of the base. Each of the two first steel box girder top plates has a symmetrical first sliding groove inside. A first slider is slidably connected inside each first sliding groove. A second steel box girder top plate is fixedly connected to the side of each set of first sliders that are close to each other. Two first electric telescopic rods are fixedly connected to the inner bottom wall of each of the two first steel box girder top plates. The output ends of both sets of first electric telescopic rods are fixedly connected to the second steel box girder top plates. A steel box girder support plate is fixedly connected to the side of each of the two second steel box girder top plates that are close to each other. Two second electric telescopic rods are fixedly connected to the bottom surface of the base. A stabilizing plate is fixedly connected to the output ends of the two second electric telescopic rods.

[0007] In a further embodiment, the upper surface of the steel box girder support plate and the bottom surface of the stabilizing plate are both fixedly connected with anti-slip layers, and push handles are fixedly connected to the opposite sides of the two first steel box girder top plates.

[0008] In a further embodiment, a first reinforcing rod is fixedly connected to the upper surface of the base, and a symmetrical second sliding groove is provided on the inner wall of the first reinforcing rod. Warning signs are fixedly connected to the two opposite sides of the top plates of the first steel box girders.

[0009] In a further embodiment, a second slider is slidably connected inside each of the two second slide grooves, and a second reinforcing rod is fixedly connected to one side of each of the two second sliders that are close to each other.

[0010] In a further embodiment, a third electric telescopic rod is fixedly connected to the inner bottom wall of the first reinforcing rod, and the output end of the third electric telescopic rod is fixedly connected to the second reinforcing rod. A control panel is fixedly connected to the front of the top plate of one of the first steel box girders.

[0011] In a further embodiment, four support legs are fixedly connected to the bottom surface of the base, and each support leg is fixedly connected to a universal pulley on its bottom surface.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device, through the cooperation of support legs, universal pulleys, push handles, a third electric telescopic rod, a stabilizing plate, and a first anti-slip layer, not only facilitates the movement and stabilization of the equipment by the workers, but also greatly increases the practicality of the equipment. The cooperation of the first reinforcing rod, the second sliding groove, the second sliding block, and the second reinforcing rod can greatly increase the overall strength of the equipment. The cooperation of the first steel box girder top plate, the first sliding groove, the first sliding block, the second steel box girder top plate, the first electric telescopic rod, and the steel box girder support plate enables the equipment to perform automatic jacking operations on the steel box girder. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the steel box girder jacking and limiting device.

[0015] Figure 2 This is a side view of the steel box girder jacking and limiting device.

[0016] Figure 3 This is a side sectional view of the first support plate in the steel box girder jacking and limiting device.

[0017] Figure 4 This is a front sectional view of the first reinforcing rod in the jacking and limiting device for steel box girders.

[0018] In the diagram: 1. Base; 2. Top plate of the first steel box girder; 3. First slide groove; 4. Second slider; 5. Top plate of the second steel box girder; 6. First electric telescopic rod; 7. Second electric telescopic rod; 8. Stabilizing plate; 9. Steel box girder support plate; 10. Anti-slip layer; 11. First reinforcing rod; 12. Second slide groove; 13. Second slider; 14. Second reinforcing rod; 15. Third electric telescopic rod; 16. Push handle; 17. Control panel; 18. Warning sign; 19. Support leg; 20. Universal caster. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4In this utility model, the steel box girder pushing and limiting device includes a base 1. Two first steel box girder top plates 2 are fixedly connected to the upper surface of the base 1. The interior of each of the two first steel box girder top plates 2 is provided with symmetrical first sliding grooves 3. A first slider 4 is slidably connected inside each first sliding groove 3. A second steel box girder top plate 5 is fixedly connected to the side of each set of first sliders 4 that are close to each other. Two first electric telescopic rods 6 are fixedly connected to the inner bottom wall of each of the two first steel box girder top plates 2. The output ends of the two sets of first electric telescopic rods 6 are fixedly connected to the second steel box girder top plates 5. A steel box girder support plate 9 is fixedly connected to the side of the two second steel box girder top plates 5 that are close to each other. Two second electric telescopic rods 7 are fixedly connected to the bottom surface of the base 1. A stabilizing plate 8 is fixedly connected to the output ends of the two second electric telescopic rods 7.

[0023] The upper surface of the steel box girder support plate 9 and the bottom surface of the stabilizing plate 8 are both fixedly connected with anti-slip layers 10. Push handles 16 are fixedly connected to the two opposite sides of the top plates 2 of the first steel box girders. The upper surface of the base 1 is fixedly connected with a first reinforcing rod 11. The inner wall of the first reinforcing rod 11 is provided with symmetrical second sliding grooves 12. Warning signs 18 are fixedly connected to the opposite sides of the top plates 2 of the two first steel box girders. Second sliders 13 are slidably connected inside the two second sliding grooves 12. The opposite sides of the two second sliders 13 are fixedly connected with a second reinforcing rod 14, which can greatly increase the overall strength of the equipment.

[0024] The inner bottom wall of the first reinforcing rod 11 is fixedly connected to the third electric telescopic rod 15. The output end of the third electric telescopic rod 15 is fixedly connected to the second reinforcing rod 14. The front of the top plate 2 of the first steel box girder is fixedly connected to the control panel 17. The bottom surface of the base 1 is fixedly connected to four support legs 19. The bottom surface of each support leg 19 is fixedly connected to a universal pulley 20, which can facilitate the movement of the equipment by the staff.

[0025] The working principle of this utility model is as follows: First, the staff can move the equipment to the usage position and connect the mobile power supply. Then, the second electric telescopic rod 7 can be started. The second electric telescopic rod 7 can drive the stabilizing plate 8 to move down and stabilize the equipment. Subsequently, the first electric telescopic rod 6 and the third electric telescopic rod 15 can be started at the same time. The first electric telescopic rod 6 and the third electric telescopic rod 15 can respectively drive the top plate 5 of the second steel box girder and the second reinforcing rod 14 to move up and complete the lifting operation of the steel box girder.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A steel box girder jacking and limiting device, characterized in that: The base (1) includes a base, on the upper surface of which two first steel box girder top plates (2) are fixedly connected. The interior of each of the two first steel box girder top plates (2) is provided with a symmetrical first sliding groove (3). The interior of each first sliding groove (3) is slidably connected with a first slider (4). The side of each group of first sliders (4) that is close to each other is fixedly connected with a second steel box girder top plate (5). The inner bottom wall of each of the two first steel box girder top plates (2) is fixedly connected with two first electric telescopic rods (6). The output ends of the two groups of first electric telescopic rods (6) are fixedly connected to the second steel box girder top plate (5). The side of the two second steel box girder top plates (5) that is close to each other is fixedly connected with a steel box girder support plate (9). The bottom surface of the base (1) is fixedly connected with two second electric telescopic rods (7). The output ends of the two second electric telescopic rods (7) are fixedly connected with a stabilizing plate (8).

2. The steel box girder jacking and limiting device according to claim 1, characterized in that: The upper surface of the steel box girder support plate (9) and the bottom surface of the stabilizing plate (8) are both fixedly connected with anti-slip layer (10), and the two first steel box girder top plates (2) are fixedly connected with push handles (16) on the opposite sides.

3. The steel box girder jacking and limiting device according to claim 1, characterized in that: The upper surface of the base (1) is fixedly connected to a first reinforcing rod (11), and the inner wall of the first reinforcing rod (11) is provided with a symmetrical second sliding groove (12). Warning signs (18) are fixedly connected to the two first steel box girder top plates (2) on opposite sides.

4. The steel box girder jacking and limiting device according to claim 3, characterized in that: The interior of each of the two second slide grooves (12) is slidably connected to a second slider (13), and the two second sliders (13) are fixedly connected to a second reinforcing rod (14) on their adjacent sides.

5. The steel box girder jacking and limiting device according to claim 3, characterized in that: The inner bottom wall of the first reinforcing rod (11) is fixedly connected to a third electric telescopic rod (15), the output end of the third electric telescopic rod (15) is fixedly connected to the second reinforcing rod (14), and a control panel (17) is fixedly connected to the front of the top plate (2) of the first steel box girder.

6. The steel box girder jacking and limiting device according to claim 1, characterized in that: The base (1) has four support legs (19) fixedly connected to its bottom surface, and each support leg (19) has a universal pulley (20) fixedly connected to its bottom surface.

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