In-vitro cable unfolding cable reel capable of adjusting working radius

Abstract

The utility model discloses an external cable unfolding cable reel with adjustable working radius, which comprises a rotary drum and a base, a central shaft is vertically and fixedly arranged at the top of the base, and the rotary drum is rotatably mounted on the central shaft through a bearing in a penetrating and sleeving manner. The periphery of the lower end of the rotary drum is connected with a plurality of internal steel channels used for supporting and placing bundling outer cables in a horizontal divergent mode, universal wheels are installed at the bottoms of the internal steel channels, sliding rails are arranged on the lower edges in grooves of the internal steel channels, and fixed sliding blocks are arranged on the sliding rails in a sliding mode; and a plurality of telescopic rods are connected to the periphery of the upper end of the rotary drum in a horizontal divergent mode, the extending ends of the telescopic rods are vertically connected with limiting rods, the upper ends of the limiting rods are connected with the telescopic rods, and the lower ends of the limiting rods are connected with the fixed sliding blocks. The inner diameter of the in-vitro cable unfolding disc with the adjustable working radius can be adjusted according to needs, and the in-vitro cable unfolding disc can meet the requirements for bundling and unfolding of in-vitro cables with different inner diameters.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction auxiliary equipment, in particular to an external cable spreading disc with an adjustable working radius. Background Art

[0002] With the continuous development of my country's highway transportation industry, the scale and number of bridge construction projects are increasing. During bridge construction, prestressed external cable technology can significantly increase the bearing capacity of bridges, significantly improve the mechanical performance of bridge structures, and also enhance the safety and comfort of vehicle traffic.

[0003] Prestressed external cables are used to reinforce the upper portion of a bridge. This involves using cold-drawn thick steel bars, strands, or high-strength steel wire bundles as prestressing tendons in the tension zone below the beam. These tendons are tensioned to create an eccentric preload on the beam. This eccentric preload causes the beam to arch upward, reducing load deflection and improving the beam's stress conditions, thereby increasing its bearing capacity. Prestressed external cable reinforcement technology is currently a leading reinforcement and improvement technology. However, for long-span bridges, the span cables can be over 200 meters long. Bundled, prefabricated external cables cannot be effectively deployed during threading, resulting in significant internal forces during the pulling process that affect threading efficiency. Therefore, to improve threading efficiency, cable deployment discs are required during construction.

[0004] However, in construction applications, it has been found that the central vertical limit frame of the currently used cable spreading disc is fixed and cannot be adjusted in size as needed, making it unsuitable for the various external cable bundles with different inner diameters. When a smaller limit frame is used, it does not match the inner diameter of the bundled cable and cannot effectively limit the position of the bundled cable. If a limit frame that matches the inner diameter of the bundled cable is used, the limit frame and the inner ring of the bundled cable are easily stuck when the bundled cable is hoisted, making the hoisting process difficult. Therefore, a cable spreading disc with an adjustable working radius is needed. Summary of the Invention

[0005] The purpose of the utility model is to address the problems of the existing technology and propose an external cable spreading disc with an adjustable working radius. The external cable spreading disc with an adjustable working radius can adjust the inner diameter according to needs, and can be suitable for the needs of bundling and spreading external cables with various different inner diameters. It has the advantages of convenient construction, simple installation and transportation, light mobility, and safe and reliable construction.

[0006] The utility model is realized by adopting the following technical solutions:

[0007] The top of the described supporting cam is provided with a toothed connecting strip which is cooperatively connected with the toothed connecting strip, and the toothed connecting strip is connected with the toothed connecting strip by the toothed connecting strip.

[0008] Further preferably, a connecting flange is provided on the outer periphery of the lower end of the rotating drum, and the internal channel steel is detachably connected to the connecting flange by means of latches or bolts, thereby realizing an assemblable installation.

[0009] Further preferred: the base is provided with a reinforcing rib for strengthening the connection with the central axis; the reinforcing rib is in the shape of a right-angled triangle, one right-angled side of the reinforcing rib is connected to the outer wall of the central axis, and the other right-angled side is connected to the base.

[0010] Further preferably, an outer channel steel is connected between the ends of two adjacent inner channel steels to enhance the stability of the inner channel steel support structure. Preferably, the ends of the outer channel steel are detachable from the inner channel steels via latches or bolts. The inner and outer channel steels are connected to form a hexagonal shape that serves as the support plate for the device.

[0011] Further preferably, the lower end of the limit rod is detachably connected to the fixed slider via a limit rod fixing bolt to achieve assemblable installation.

[0012] Further preferably, the telescopic rod comprises a threaded rod and a threaded rod sleeve, one end of the threaded rod being provided with an external thread, the threaded rod sleeve being tubular, and the threaded rod sleeve being provided with an internal thread, one end of the threaded rod being threadedly connected to one end of the threaded rod sleeve, and the other end of the threaded rod being connected to a limiting rod, the upper end of the rotating drum being provided with a connecting disk, the connecting disk being provided with a connecting sleeve for inserting the threaded rod sleeve, and the other end of the threaded rod sleeve being inserted into the connecting sleeve. Rotating the threaded rod sleeve can adjust the length of the telescopic rod, thereby completing the load-bearing and installation of external cables of bundled finished cables of different inner diameters and specifications. Shortening the telescopic rod also facilitates the installation of the external cables of the bundled finished cables.

[0013] Further preferred: the other end of the threaded rod is provided with a threaded hole, the limiting rod is provided with a mounting hole corresponding to the threaded hole, the mounting hole is installed with a telescopic rod fixing bolt, and the other end of the threaded rod is detachably connected to the limiting rod through the telescopic rod fixing bolt to achieve an assemblable installation.

[0014] This external cable deployment reel with adjustable working radius uses a telescopic rod and a fixed slider mounted on the internal channel steel to adjust the position of the limit rod, allowing the limit rod to be close to or away from the inner ring of the bundled external cable. This facilitates the installation of the bundled external cable. The reel's inner diameter can be adjusted as needed, accommodating a variety of external cable bundles with different inner diameters. The components are connected by removable pins or bolts, achieving an assembled design. After installation, it can be disassembled, transferred, and reused. It offers the advantages of convenient construction, easy installation and transportation, lightweight portability, and safe and reliable construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of an external cable-spreading disc with adjustable working radius;

[0016] Figure 2 This is a schematic diagram of the installation relationship between the internal channel steel and the base;

[0017] Figure 3 Schematic diagram of the installation relationship between the slide rail and the fixed slider;

[0018] Figure 4 Schematic diagram of the connection structure of the telescopic rod;

[0019] Figure 5 This is a schematic diagram of the placement structure of the external rope for bundling;

[0020] The serial numbers of the parts in the figure are:

[0021] 1. Internal channel steel; 2. Slide rail; 3. Center axis; 4. Rotating drum; 5. Bearing; 6. Base; 7. Connecting flange; 8. Limit rod; 9. Telescopic rod; 10. Connecting plate; 11. Reinforcement rib; 12. Universal wheel; 13. External channel steel; 14. Connecting sleeve; 15. Fixing bolt for slider; 16. Fixing slider; 17. Fixing bolt for limit rod; 18. External rope for bundling; 19. Fixing bolt for telescopic rod; 20. Threaded rod; 21. Threaded rod sleeve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The following is a detailed description of the present invention with reference to the accompanying drawings:

[0024] An external cable-spreading reel with adjustable working radius comprises a rotating drum 4 and a base 6. A central shaft 3 is fixed vertically on the top of the base 6. The rotating drum 4 is rotatably mounted on the central shaft 3 through a bearing 5. A bearing 5 rotatably connected to the central shaft 3 is installed inside the upper and lower ends of the rotating drum 4. The outer periphery of the lower end of the rotating drum 4 is horizontally divergent and connected with multiple internal channel steels 1 for supporting and placing bundled external cables 18. A universal wheel 12 is installed at the bottom of the internal channel steel 1. The universal wheel 12 is located on the bridge deck. The base 6 is connected to the bridge deck by means of embedded bolts, a slide rail 2 is provided on the lower side of the inner channel steel 1, a fixed slider 16 is slidably provided on the slide rail 2, and a fixed slider locking bolt 15 for locking the fixed slider 16 is provided on the fixed slider 16. The outer periphery of the upper end of the rotating drum 4 is horizontally divergently connected with multiple telescopic rods 9, the protruding end of the telescopic rod 9 is vertically connected to the limit rod 8, the upper end of the limit rod 8 is connected to the telescopic rod 9, and the lower end of the limit rod 8 is connected to the fixed slider 16.

[0025] A connecting flange 7 is provided on the outer periphery of the lower end of the rotating drum 4, and the internal channel steel 1 is detachably connected to the connecting flange 7 by means of latches or bolts.

[0026] The base 6 is provided with a reinforcing rib 11 for strengthening the connection with the central shaft 3; the reinforcing rib 11 is in the shape of a right-angled triangle, with one right-angled side of the reinforcing rib 11 connected to the outer wall of the central shaft 3 and the other right-angled side connected to the base 6.

[0027] An outer channel steel 13 is connected between the ends of two adjacent inner channel steels 1 to enhance the stability of the supporting structure of the inner channel steels 1. Further preferably, the ends of the outer channel steels 13 are detachable from the inner channel steels 1 via latches or bolts. The inner and outer channel steels 1, 13 are connected to form a hexagonal shape that serves as the support plate of the device.

[0028] The lower end of the limiting rod 8 is detachably connected to the fixed slider 16 via a limiting rod fixing bolt 17 .

[0029] The telescopic rod 9 includes a threaded rod 20 and a threaded rod sleeve 21. One end of the threaded rod 20 is provided with an external thread. The threaded rod sleeve 21 is tubular and internally threaded. One end of the threaded rod 20 is threadedly connected to one end of the threaded rod sleeve 21. The other end of the threaded rod 20 is connected to the limiting rod 8. The upper end of the rotating drum 4 is provided with a connecting disk 10. The connecting disk 10 is provided with a connecting sleeve 14 for inserting the threaded rod sleeve 21. The other end of the threaded rod sleeve 21 is inserted into the connecting sleeve 14. Rotating the threaded rod sleeve 21 can adjust the length of the telescopic rod 9, thereby completing the load-bearing installation of the external ropes of the bundled finished ropes of different inner diameters and specifications. When the telescopic rod 9 is shortened, it is also convenient to install the external ropes of the bundled finished ropes.

[0030] The other end of the threaded rod 20 is provided with a threaded hole, and the limiting rod 8 is provided with a mounting hole corresponding to the threaded hole. The mounting hole is installed with a telescopic rod fixing bolt 19, and the other end of the threaded rod 20 is detachably connected to the limiting rod 8 through the telescopic rod fixing bolt 19.

[0031] During use, first shorten the telescopic rod 9, place the bundled external cable 18 in the internal channel steel 1, and position the limiting rod 8 inside the inner ring of the bundled external cable 18. Adjust the length of the telescopic rod 9 according to the size of the inner ring of the bundled external cable 18 so that the limiting rod 8 is close to the inner ring of the bundled external cable 18. Then, lock the locking bolt 15 of the fixed slider to fix the fixed slider 16 to prevent it from sliding. During construction, the winch pulls the external cable from one side of the bridge to the other side. As the winch pulls, the locking disc locks the external cable and rotates along the traction force, ensuring the efficient threading of the external cable.

[0032] The above description is a detailed description of the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent utility model of the present invention. All equivalent changes or modifications completed under the technical spirit suggested by the present invention should fall within the scope of the patent covered by the present invention.

Claims

1. An external cable spreading reel with an adjustable working radius, comprising a rotating drum (4) and a base (6), wherein a central shaft (3) is fixedly provided vertically on the top of the base (6), the rotating drum (4) is rotatably mounted on the central shaft (3) through a bearing (5), and the outer periphery of the lower end of the rotating drum (4) is connected to a plurality of internal channel steels (1) for supporting and placing external cables (18) for bundling, and a universal wheel (12) is installed at the bottom of the internal channel steels (1), characterized in that: A slide rail (2) is provided on the lower side of the inner channel steel (1), a fixed slider (16) is slidably provided on the slide rail (2), and a fixed slider locking bolt (15) for locking the fixed slider (16) is provided on the fixed slider (16). The outer periphery of the upper end of the rotating drum (4) is horizontally divergently connected to a plurality of telescopic rods (9), the extended end of the telescopic rod (9) is vertically connected to the limit rod (8), the upper end of the limit rod (8) is connected to the telescopic rod (9), and the lower end of the limit rod (8) is connected to the fixed slider (16).

2. The external cable deployment reel with adjustable working radius according to claim 1, characterized in that: A connecting flange (7) is provided on the outer periphery of the lower end of the rotating drum (4), and the internal channel steel (1) is detachably connected to the connecting flange (7) via a latch or bolt.

3. The external cable deployment reel with adjustable working radius according to claim 1, characterized in that: The base (6) is provided with a reinforcing rib (11) for reinforcing the connection with the central shaft (3); the reinforcing rib (11) is in the shape of a right-angled triangle, one right-angled side of the reinforcing rib (11) is connected to the outer wall of the central shaft (3), and the other right-angled side is connected to the base (6).

4. The external cable deployment reel with adjustable working radius according to claim 1, characterized in that: An outer channel steel (13) is connected between the ends of two adjacent inner channel steels (1).

5. The external cable deployment reel with adjustable working radius according to claim 1, characterized in that: The lower end of the limiting rod (8) is detachably connected to the fixed slide block (16) via a limiting rod fixing bolt (17).

6. The external cable deployment reel with adjustable working radius according to claim 1, characterized in that: The telescopic rod (9) comprises a threaded rod (20) and a threaded rod sleeve (21), one end of the threaded rod (20) is provided with an external thread, the threaded rod sleeve (21) is tubular, and the threaded rod sleeve (21) is provided with an internal thread, one end of the threaded rod (20) is threadedly connected to one end of the threaded rod sleeve (21), and the other end of the threaded rod (20) is connected to the limit rod (8), and the upper end of the rotating drum (4) is provided with a connecting disk (10), and a connecting sleeve (14) for inserting the threaded rod sleeve (21) is provided on the connecting disk (10), and the other end of the threaded rod sleeve (21) is inserted into the connecting sleeve (14).

7. The external cable deployment reel with adjustable working radius according to claim 6, characterized in that: The other end of the threaded rod (20) is provided with a threaded hole, the limiting rod (8) is provided with a mounting hole corresponding to the threaded hole, the mounting hole is installed with a telescopic rod fixing bolt (19), and the other end of the threaded rod (20) is detachably connected to the limiting rod (8) via the telescopic rod fixing bolt (19).

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