A hoisting and positioning device for prefabricated assembled bridge components

Abstract

This utility model provides a hoisting and positioning device for prefabricated bridge components, relating to the field of bridge component technology. It includes a hanger, a left moving mechanism, and a right moving mechanism. The hanger has a groove, with a groove and a right linear guide rail respectively located on the left and right sides of the groove. The left moving mechanism is slidably connected to the groove, and the right moving mechanism is slidably connected to the right linear guide rail. The left and right moving mechanisms are parallel and have identical structures. A center plate is located in the center of the groove, and multiple positioning columns are fixed to the lower end of the center plate. Each positioning column has a pressing head made of rubber at its lower end. This utility model not only provides stable and accurate positioning of prefabricated bridge components but also utilizes the left and right moving mechanisms to move horizontally left and right, respectively supporting the left and right sides of the prefabricated bridge components for stable clamping, making hoisting safer and more stable.

Description

Technical Field

[0001] This utility model relates to the field of bridge component technology, specifically to a hoisting and positioning device for prefabricated bridge components. Background Technology

[0002] A fully prefabricated bridge is a type of bridge in which all or most of its main components are prefabricated in a factory or prefabrication yard and then assembled on site. Substructure assembly is a major focus and challenge in the assembly of fully prefabricated bridges. Pile-column piers are a widely used type of pier in highway bridges, and the prefabricated columns and cap beams of fully prefabricated bridges require precise positioning during splicing. Current methods for cap beam positioning still primarily rely on manual positioning, with a few projects employing mechanical devices for assisted positioning.

[0003] The description of a prefabricated bridge upper and lower component assembly and positioning device and method (publication number CN110593119A) mentions that "the device includes a steel bar conductive coil wound around the steel bar of the lower component, a sleeve conductive coil wound around the sleeve of the upper component, and an external power supply electrically connected to the steel bar conductive coil and the sleeve conductive coil respectively. The steel bar conductive coil and the sleeve conductive coil are respectively wound around a portion of the lower component steel bar and the corresponding upper component sleeve. After being energized, the conductive coil generates an electromagnetic induction phenomenon, magnetizing the lower component steel bar and the upper component sleeve. Through the action of the magnetic field, the lower component steel bar and the upper component sleeve are positioned." However, the prefabricated bridge upper and lower components in the prior art are not easy to lift and install stably, and their use is not safe and stable. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, a hoisting and positioning device for prefabricated bridge components is provided to solve the problems of unstable hoisting and installation of prefabricated bridge components and unsafe and unstable use in existing technologies.

[0005] To achieve the above objectives, a hoisting and positioning device for prefabricated bridge components is provided, including a hanger, a left moving mechanism, and a right moving mechanism. The hanger has a groove, and the left and right sides of the groove are respectively provided with a groove and a right linear guide rail. The left moving mechanism is slidably connected to the groove, and the right moving mechanism is slidably connected to the right linear guide rail. The left and right moving mechanisms are parallel to each other and have the same structural configuration.

[0006] Furthermore, a central plate is provided in the center of the groove, and multiple sets of positioning posts are fixed at the lower end of the central plate. An extrusion head is provided at the lower end of the positioning post, and the extrusion head is made of rubber.

[0007] Furthermore, the left moving mechanism can move left and right on the groove and the right moving mechanism can move right and left on the right linear guide rail, and the left and right linear guide rails are symmetrical about the center line of the center plate.

[0008] Furthermore, multiple sets of springs are fixed to the upper end face of the left moving mechanism, and the upper ends of the springs are fixed to the mounting groove. Multiple sets of balls are installed in the mounting groove. The balls are rolling mechanisms, and the rolling surface of the balls is in contact with the inner top of the groove.

[0009] Furthermore, the front and rear sides of the left moving mechanism are both fixed with a first side fixing plate, and multiple sets of upper telescopic cylinders are sleeved inside the first side fixing plate, and the lower end of the upper telescopic cylinder is fixed on the square frame.

[0010] Furthermore, the square frame has openings on both the left and right sides, and the outer sides of the square frame are fixed with second side fixing plates at both ends. The second side fixing plates are provided with two sets of side telescopic cylinders, and a belly outer plate is installed between the two sets of side telescopic cylinders. The front end of the outer plate is fixed to the outer side of the clamping plate.

[0011] Furthermore, the clamping plate is provided through the opening, and the inner side of the clamping plate is provided with multiple sets of anti-slip protrusions, which adopt a frustum-shaped protrusion structure.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The positioning column and extrusion head of this utility model are designed to pass through the positioning hole on the upper part of the prefabricated bridge component when the prefabricated bridge component is lifted by the hanger, so as to ensure that the clamping structure on both sides can clamp it stably and accurately.

[0014] 2. The spring, mounting groove and ball bearings on the upper surface of the left moving mechanism are provided to ensure the safe and stable movement of the upper part of the left moving mechanism on the left linear guide rail, and to prevent the upper part from shaking, thereby ensuring the stability of hoisting and positioning.

[0015] 3. This utility model utilizes a square sleeve frame on the upper left side of the prefabricated bridge component, and then extends the outer sleeve plates on the front and rear sides to push the clamping plates on the front and rear sides to clamp the prefabricated bridge component. The right moving mechanism has the same structural setting as the left moving mechanism. Similarly, the clamping structure at the lower part of the right moving mechanism can be used to clamp the upper right side of the prefabricated bridge component, ensuring safe, balanced, stable and anti-slip clamping, and accurate, stable and reliable hoisting. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model;

[0017] Figure 2This is a front view schematic diagram of the left moving mechanism according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the inner telescopic cylinder of the square sleeve in an embodiment of the present invention before it extends.

[0019] Figure 4 This is a schematic diagram of the telescopic cylinder extending from the inner side of the square sleeve in an embodiment of this utility model.

[0020] In the diagram: 1. Hanger; 10. Groove; 11. Left linear guide rail; 12. Center plate; 13. Positioning post; 14. Extrusion head; 15. Right linear guide rail; 2. Left moving mechanism; 20. Spring; 21. Mounting groove; 22. Ball bearing; 23. First side fixing plate; 24. Upper telescopic cylinder; 25. Square sleeve; 26. Through port; 27. Second side fixing plate; 270. Outer plate; 271. Side telescopic cylinder; 28. Clamping plate; 29. ​​Anti-slip protrusion; 3. Right moving mechanism. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Specific details such as particular system structures and technologies are provided to facilitate a more thorough understanding of the embodiments of this utility model. The described embodiments are some, but not all, of the embodiments disclosed herein. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0022] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model. Figure 2 This is a front view of the left moving mechanism according to an embodiment of the present utility model. Figure 3 This is a schematic diagram of the inner telescopic cylinder of the square sleeve in an embodiment of the present invention before it extends. Figure 4 This is a schematic diagram of the telescopic cylinder extending from the inner side of the square sleeve in an embodiment of this utility model.

[0024] Reference Figures 1 to 4As shown, this utility model provides a hoisting and positioning device for prefabricated bridge components, including a hanger 1, a left moving mechanism 2 and a right moving mechanism 3. The hanger 1 is provided with a groove 10, and the left and right sides of the groove 10 are respectively provided with a groove 10 and a right linear guide rail 15. The left moving mechanism 2 is slidably connected to the groove 10, and the right moving mechanism 3 is slidably connected to the right linear guide rail 15. The left moving mechanism 2 and the right moving mechanism 3 are parallel to each other, and the left moving mechanism 2 and the right moving mechanism 3 have the same structural configuration.

[0025] In this embodiment, a central plate 12 is provided in the middle of the groove 10, and multiple sets of positioning posts 13 are fixed at the lower end of the central plate 12. An extrusion head 14 is provided at the lower end of the positioning post 13. The extrusion head 14 is made of rubber.

[0026] As a preferred embodiment, the positioning column 13 and the extrusion head 14 of this utility model are designed to pass through the positioning hole on the upper part of the prefabricated bridge component when the prefabricated bridge component is lifted by the hanger, thereby ensuring that the clamping structures on both sides can clamp stably and accurately.

[0027] In this embodiment, multiple sets of springs 20 are fixed to the upper end face of the left moving mechanism 2, and the upper ends of the springs 20 are fixed to the mounting groove 21. Multiple sets of balls 22 are installed in the mounting groove 21. The balls 22 are rolling mechanisms, and the rolling surface of the balls 22 is in contact with the inner top of the groove 10.

[0028] As a preferred embodiment, the present invention provides a spring 20, a mounting groove 21 and a ball bearing 22 on the upper surface of the left moving mechanism 2 to ensure that the upper part of the left moving mechanism 2 moves safely and stably on the left linear guide rail 11, and that the upper part is not prone to shaking, thereby ensuring the stability of hoisting and positioning.

[0029] In this embodiment, the front and rear sides of the left moving mechanism 2 are fixed with a first side fixing plate 23, and multiple sets of upper telescopic cylinders 24 are sleeved inside the first side fixing plate 23. The lower end of the upper telescopic cylinder 24 is fixed to the square frame 25. The left and right sides of the square frame 25 are provided with openings 26, and the left and right ends of the outer side of the square frame 25 are fixed with a second side fixing plate 27. Two sets of side telescopic cylinders 271 are provided on the second side fixing plate 27. A belly outer plate 270 is installed between the two sets of side telescopic cylinders 271. The front end of the outer plate 270 is fixed to the outer side of the clamping plate 28. The clamping plate 28 is set through the opening 26, and multiple sets of anti-slip protrusions 29 are provided on the inner side of the clamping plate 28. The anti-slip protrusions 29 adopt a frustum-shaped protrusion structure.

[0030] In a preferred embodiment, this invention utilizes a square frame 25 mounted on the upper left side of the precast bridge component. The outer sleeves 270 on the front and rear sides extend to push the clamping plates 28 on both sides, clamping the precast bridge component on both sides. The right moving mechanism 3 has the same structural configuration as the left moving mechanism 2. Similarly, the clamping structure at the lower part of the right moving mechanism 3 can be used to clamp the upper right side of the precast bridge component, ensuring safe, balanced, stable, and slip-resistant clamping, and accurate, stable, and reliable hoisting.

[0031] This invention effectively solves the problem that prefabricated bridge components are not easy to lift and install stably in the prior art, and are not safe and stable to use. This invention not only provides stable and accurate positioning for prefabricated bridge components, but also uses left and right moving mechanisms to move horizontally left and right, respectively, and is placed on the upper left and right sides of the prefabricated bridge components for stable clamping, making the lifting safer and more stable.

[0032] The above embodiments are used to explain and illustrate the present utility model, and not to limit the utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims should be included within the protection scope of the present utility model.

Claims

1. A device for lifting and positioning prefabricated assembled bridge elements, characterized in that: The device includes a hanger (1), a left moving mechanism (2) and a right moving mechanism (3). The hanger (1) has a groove (10) inside, and the left and right sides of the groove (10) are respectively provided with a groove (10) and a right linear guide rail (15). The left moving mechanism (2) is slidably connected to the groove (10), and the right moving mechanism (3) is slidably connected to the right linear guide rail (15). The left moving mechanism (2) and the right moving mechanism (3) are parallel to each other, and the left moving mechanism (2) and the right moving mechanism (3) have the same structure.

2. A device for hoisting and positioning a prefabricated segmental bridge element according to claim 1, characterized in that A central plate (12) is provided in the middle of the groove (10), and multiple sets of positioning posts (13) are fixed at the lower end of the central plate (12). An extrusion head (14) is provided at the lower end of the positioning post (13), and the extrusion head (14) is made of rubber.

3. The hoisting and positioning device for prefabricated assembled bridge components according to claim 1, characterized in that, The left moving mechanism (2) can move left and right on the groove (10) and the right moving mechanism (3) can move right and left on the right linear guide (15). The left linear guide (11) and the right linear guide (15) are symmetrical about the center line of the center plate (12).

4. The hoisting and positioning device for prefabricated assembled bridge components according to claim 1, characterized in that, The upper end face of the left moving mechanism (2) is fixed with multiple sets of springs (20), and the upper end of the springs (20) is fixed under the mounting groove (21). Multiple sets of balls (22) are installed in the mounting groove (21). The balls (22) are rolling mechanisms, and the rolling surface of the balls (22) is in contact with the inner top of the groove (10).

5. The device for hoisting and positioning of precast segmental bridge elements according to claim 1, characterized in that, The left moving mechanism (2) has a first side fixing plate (23) fixed on both the front and rear sides, and multiple sets of upper telescopic cylinders (24) are sleeved inside the first side fixing plate (23), and the lower end of the upper telescopic cylinder (24) is fixed on the square frame (25).

6. A device for hoisting and positioning a prefabricated segmental bridge element according to claim 5, characterized in that The square frame (25) has openings (26) on both the left and right sides, and the outer sides of the square frame (25) are fixed with second side fixing plates (27) at both ends. The second side fixing plates (27) are provided with two sets of side telescopic cylinders (271), and a belly outer plate (270) is installed between the two sets of side telescopic cylinders (271). The front end of the outer plate (270) is fixed to the outer side of the clamping plate (28).

7. The hoisting and positioning device for prefabricated assembled bridge components according to claim 6, characterized in that, The clamping plate (28) is installed through the opening (26), and the inner side of the clamping plate (28) is provided with multiple sets of anti-slip protrusions (29), which adopt a frustum-shaped protrusion structure.

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