Cast-in-place box girder box indoor tensioning transportation equipment

Abstract

The utility model relates to the technical field of bridge construction, in particular to cast-in-place box girder box indoor tensioning transportation equipment which comprises a moving trolley and a shear fork type hydraulic lifting system, the shear fork type hydraulic lifting system is installed at the upper end of the moving trolley, and a tray is installed on a force arm at the upper end of the shear fork type hydraulic lifting system. A cover plate is movably mounted at the upper end of the tray, and a liftable pressing plate is mounted at the inner end of the cover plate; fixing cylinders are fixedly installed on the lower sides of the front end and the rear end of the tray, when the hydraulic jack is placed in the tray, bolts on a cover plate can be screwed off, then the cover plate is rotated to one side of the tray through a rotating shaft, then the cover plate is rotated back and then fixed through the bolts, and a pressing plate can be driven to move up and down by rotating a threaded rod. The hydraulic jack is pressed through the pressing plate, then the limiting plates are moved to make contact with the two ends of the hydraulic jack, the hand-screwing bolts are screwed, the hydraulic jack is fixed, and the hydraulic jack is convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a cast-in-place box beam box room tensioning and transportation equipment. Background Art

[0002] Prestressed cast-in-place box girder is a commonly used bridge structure, mainly composed of bottom plate, web plate and top plate. It is suitable for large-span bridges and highway projects, and is mostly prestressed by post-tensioning. The prestressed post-tensioning method is to use hydraulic jack tensioning equipment to tension the prestressed tendons in a certain order after the concrete is poured and reaches the design strength.

[0003] Since the tensioning end of the prestressed material arranged on the top and bottom plates of the box beam will be reserved on the top or bottom plates inside the box chamber, when prestressing is performed, the construction personnel place the hydraulic jack equipment on the bottom plate inside the box chamber from above the hole reserved in the top plate of the box beam, and then manually transport the jack horizontally to the tensioning position with simple equipment such as hand winches and lift it to the working height for installation. After installation, tensioning is performed. Since the hydraulic jack is heavy, generally 300-500kg, and the space inside the box beam is small, it is inconvenient to operate the jack when transporting it. Therefore, the utility model proposes a cast-in-place box beam box chamber tensioning and transportation equipment to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a cast-in-place box beam box room tensioning and transportation equipment to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cast-in-place box beam box room tensioning and transportation equipment, comprising: a mobile trolley and a scissor-type hydraulic lifting system, the scissor-type hydraulic lifting system is installed at the upper end of the mobile trolley, a pallet is installed on the upper end force arm of the scissor-type hydraulic lifting system, a cover plate is movably installed on the upper end of the pallet, and a liftable pressing plate is installed at the inner end of the cover plate;

[0006] The lower sides of the front and rear ends of the tray are fixedly installed with fixing cylinders, the outer ends of the fixing cylinders are slidably connected with moving rods, and the upper ends of the moving rods are fixedly installed with limiting plates.

[0007] Preferably, the middle of the pallet is in a downwardly concave arc shape, and mounting blocks are fixedly installed on the left and right sides of the front and rear ends of the pallet, and the pallet is installed on the upper end force arm of the scissor-type hydraulic lifting system through the mounting blocks.

[0008] Preferably, the cover plate is U-shaped, one end of the cover plate is rotatably connected to the upper end of the tray via a rotating shaft, and the other end of the cover plate can be fixedly connected to the other end of the tray via bolts.

[0009] Preferably, a threaded barrel 1 is fixedly installed at the center of the upper end of the cover plate, a threaded rod is connected to the internal thread of the threaded barrel 1, and the lower end of the threaded rod passes through the threaded barrel 1 and is rotatably connected to the upper end of the pressure plate.

[0010] Preferably, sliding holes are provided on the front and rear sides of the upper end of the cover plate, the pressure plate is arc-shaped, and guide rods are fixedly installed on the front and rear sides of the upper end of the pressure plate, and the upper end of the guide rod slides through the sliding holes.

[0011] Preferably, a second threaded tube is fixedly mounted on the upper side of the outer end of each fixed tube, and a hand-tightening bolt is connected to the inner thread of the second threaded tube, and the inner end of the hand-tightening bolt contacts the upper end side wall of the moving rod.

[0012] Preferably, the upper end of the limiting plate is flush with the upper end of the cover plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When placing a hydraulic jack in the pallet, the bolts on the cover plate can be unscrewed, and then the cover plate can be rotated to one side of the pallet through the rotating shaft, and then the cover plate can be turned back and fixed with the bolts. By rotating the threaded rod, the pressure plate can be driven to move up and down, and the hydraulic jack can be pressed by the pressure plate. Then the limit plate is moved to contact the two ends of the hydraulic jack, and the hand bolts are tightened to fix the hydraulic jack for easy transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main view of the overall structure of the utility model;

[0016] Figure 2 This is a right view of the left and right ends of the tray of the utility model;

[0017] Figure 3 This is a left view of the left and right ends of the tray of the utility model;

[0018] Figure 4 This is a schematic diagram of the installation of the limit plate of the utility model.

[0019] In the figure: 1. Mobile trolley; 2. Scissor-type hydraulic lifting system; 3. Pallet; 4. Mounting block; 5. Cover plate; 6. Threaded barrel 1; 7. Threaded rod; 8. Pressure plate; 9. Rotating shaft; 10. Bolt; 11. Sliding hole; 12. Guide rod; 13. Fixed barrel; 14. Mobile rod; 15. Limit plate; 16. Threaded barrel 2; 17. Hand-tightened bolt. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present utility model, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0024] See also Figures 1 to 4The utility model provides a technical solution: a cast-in-place box beam box room tensioning and transportation equipment, comprising: a mobile trolley 1 and a scissor-type hydraulic lifting system 2, the scissor-type hydraulic lifting system 2 is installed at the upper end of the mobile trolley 1, a pallet 3 is installed on the upper end force arm of the scissor-type hydraulic lifting system 2, the middle of the pallet 3 is in a downwardly concave arc shape, and the left and right sides of the front and rear ends of the pallet 3 are fixedly installed with mounting blocks 4, and are installed on the upper end force arm of the scissor-type hydraulic lifting system 2 through the mounting blocks 4. By placing the hydraulic jack in the pallet 3, the hydraulic jack of the pallet 3 can be moved up and down in the vertical direction through the scissor-type hydraulic lifting system 2, and the mobile trolley 1 can facilitate the movement of the scissor-type hydraulic lifting system 2, the pallet 3 and the hydraulic jack.

[0025] A cover plate 5 is movably installed on the upper end of the pallet 3. The cover plate 5 is U-shaped. One end of the cover plate 5 is rotatably connected to the upper end of the pallet 3 via a rotating shaft 9, and the other end of the cover plate 5 can be fixedly connected to the other end of the pallet 3 via a bolt 10. When placing a hydraulic jack in the pallet 3, the bolt 10 on the cover plate 5 can be unscrewed, and then the cover plate 5 can be rotated to one side of the pallet 3 via the rotating shaft 9, so as to facilitate the taking and placing of the hydraulic jack.

[0026] A liftable pressing plate 8 is installed at the inner end of the cover plate 5, and a threaded cylinder 6 is fixedly installed at the center of the upper end of the cover plate 5. A threaded rod 7 is connected to the inner thread of the threaded cylinder 6. The lower end of the threaded rod 7 passes through the threaded cylinder 6 and is rotatably connected to the upper end of the pressing plate 8. The pressing plate 8 can be driven to move up and down by rotating the threaded rod 7, and the hydraulic jack is pressed by the pressing plate 8 to prevent the hydraulic jack from falling off during the movement. Sliding holes 11 are provided on the front and rear sides of the upper end of the cover plate 5, and the pressing plate 8 is in an arc shape. Guide rods 12 are fixedly installed on the front and rear sides of the upper end of the pressing plate 8, and the upper end of the guide rod 12 slides through the sliding hole 11. When the pressing plate 8 moves, the guide rod 12 slides in the sliding hole 11, which plays a role in guiding and limiting the pressing plate 8.

[0027] A fixing cylinder 13 is fixedly installed on the lower side of the front and rear ends of the pallet 3, and a moving rod 14 is slidably connected to the outer end of the fixing cylinder 13. A limiting plate 15 is fixedly installed on the upper end of the moving rod 14, and a threaded cylinder 16 is fixedly installed on the upper side of the outer end of each fixing cylinder 13. A hand bolt 17 is connected to the inner thread of the threaded cylinder 16. The inner end of the hand bolt 17 contacts the upper end side wall of the moving rod 14. The position of the moving rod 14 and the limiting plate 15 can be adjusted by screwing the hand bolt 17. The upper end of the limiting plate 15 is flush with the upper end of the cover plate 5. Then the hydraulic jack is placed in the pallet 3, and the limiting plate 15 is moved to contact the two ends of the hydraulic jack, and the hand bolts 17 are tightened to further fix the hydraulic jack.

[0028] When the device is working, when placing the hydraulic jack in the pallet 3, the bolts 10 on the cover plate 5 can be unscrewed, and then the cover plate 5 can be rotated to one side of the pallet 3 through the rotating shaft 9, and then the cover plate 5 can be rotated back and fixed by the bolts 10, and the pressure plate 8 can be driven to move up and down by rotating the threaded rod 7, and the hydraulic jack can be pressed by the pressure plate 8, and then the limit plate 15 is moved to contact the two ends of the hydraulic jack, and the hand bolts 17 are tightened to fix the hydraulic jack, and then it can be carried.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cast-in-place box beam box room tensioning and transportation equipment, comprising: A mobile trolley (1) and a scissor-type hydraulic lifting system (2), wherein the scissor-type hydraulic lifting system (2) is installed at the upper end of the mobile trolley (1), and is characterized in that a tray (3) is installed on the upper end force arm of the scissor-type hydraulic lifting system (2), a cover plate (5) is movably installed on the upper end of the tray (3), and a liftable pressure plate (8) is installed at the inner end of the cover plate (5); A fixing cylinder (13) is fixedly mounted on the lower sides of the front and rear ends of the tray (3); a moving rod (14) is slidably connected to the outer end of the fixing cylinder (13); and a limiting plate (15) is fixedly mounted on the upper end of the moving rod (14).

2. The cast-in-place box beam box room tensioning and transportation equipment according to claim 1, characterized in that: The middle of the tray (3) is in a downwardly concave arc shape, and mounting blocks (4) are fixedly mounted on both left and right sides of the front and rear ends of the tray (3), and the tray (3) is mounted on the upper force arm of the scissor-type hydraulic lifting system (2) through the mounting blocks (4).

3. The cast-in-place box beam box room tensioning and transportation equipment according to claim 1, characterized in that: The cover plate (5) is U-shaped, one end of the cover plate (5) is rotatably connected to the upper end of the tray (3) via a rotating shaft (9), and the other end of the cover plate (5) can be fixedly connected to the other end of the tray (3) via a bolt (10).

4. The cast-in-place box beam box chamber tensioning and transportation equipment according to claim 1, characterized in that: A threaded barrel (6) is fixedly mounted at the center of the upper end of the cover plate (5), and a threaded rod (7) is internally threadedly connected to the threaded barrel (6). The lower end of the threaded rod (7) passes through the threaded barrel (6) and is rotatably connected to the upper end of the pressure plate (8).

5. The cast-in-place box beam box chamber tensioning and transportation equipment according to claim 1, characterized in that: The front and rear sides of the upper end of the cover plate (5) are provided with sliding holes (11); the pressing plate (8) is in an arc shape; the front and rear sides of the upper end of the pressing plate (8) are fixedly installed with guide rods (12); the upper end of the guide rod (12) slides through the sliding hole (11).

6. The cast-in-place box beam box chamber tensioning and transportation equipment according to claim 1, characterized in that: A second threaded tube (16) is fixedly mounted on the upper side of the outer end of each fixed tube (13), and a hand-tightening bolt (17) is connected to the inner thread of the second threaded tube (16), and the inner end of the hand-tightening bolt (17) contacts the upper end side wall of the moving rod (14).

7. The cast-in-place box beam box chamber tensioning and transportation equipment according to claim 1, characterized in that: The upper end of the limiting plate (15) is flush with the upper end of the cover plate (5).

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