Steel box girder mounting structure

Abstract

The utility model discloses a steel box girder installation structure which comprises a steel box girder body, two first movable blocks are arranged on one side of the top end of the steel box girder body, a first clamping box is arranged at the bottom of each first movable block, two second movable blocks are arranged on the other side of the top end of the steel box girder body, and a second clamping box is arranged at the bottom of each second movable block. The top end of the first movable block and the top end of the second movable block are each provided with a rope penetrating groove, the middle of each rope penetrating groove is fixedly connected with a transverse rod, a second clamping box is arranged at the bottom of the second movable block, and one side wall of the first clamping box and one side wall of the second clamping box are each provided with an opening. According to the utility model, by arranging a series of structures, whether the top surfaces of the two sections of steel box girders are flush or not can be quickly judged, so that the levelness of the two sections of steel box girders after butt joint can be conveniently detected, butt joint in a butt joint locking mode through connecting bolts is avoided, the operation steps during welding of the steel box girders are simplified, and the welding efficiency is improved. And the time consumed in the welding process of the steel box girder is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel box girder installation, in particular to a steel box girder installation structure. Background Art

[0002] Steel box girder, also known as steel plate box girder, is a structural form frequently used in large-span bridges. It is called steel box girder because of its box-like appearance. It is generally divided into several beam sections for manufacturing and installation. In order to be able to quickly connect during installation, corresponding installation structures are usually provided on the steel box girder to assist in the rapid connection and installation of the steel box girder.

[0003] However, when the existing steel box girders are butt-jointed, operators usually use their naked eyes to judge whether the top surfaces of the two sections of the steel box girders are on the same horizontal plane after butt-jointing. However, it is difficult to find out whether the top surfaces of the two sections of the steel box girders are flush with each other through naked eyes, which is inconvenient to detect the horizontality of the steel box girders after butt-jointing. In addition, when the existing steel box girders are butt-jointed, connecting bolts are usually used to butt-joint and lock the two sections of the steel box girders before welding. However, since the connecting bolts need to be tightened with the matching nuts, the locking steps of the steel box girders are relatively cumbersome, resulting in a time-consuming process of welding and installing the steel box girders. Utility Model Content

[0004] The purpose of the utility model is to provide a steel box girder installation structure 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 steel box girder installation structure, comprising a steel box girder body, two first movable blocks are arranged on one side of the top of the steel box girder body, a first card box is arranged at the bottom of the first movable block, two second movable blocks are arranged on the other side of the top of the steel box girder body, the tops of the first movable blocks and the second movable blocks are both provided with rope threading grooves, the middle of the rope threading groove is fixedly connected with a cross bar, the bottom of the second movable block is provided with a second card box, and one side wall of the first card box and the second card box is both provided with openings;

[0006] An insert block is provided inside the second card box, a partition is fixedly connected to the middle of the steel box girder body, a cavity is opened inside the partition, a flat plate is provided on the top of the steel box girder body, a connecting rod is fixedly connected to one side of the bottom end of the flat plate, a card plate is fixedly connected to the bottom end of the connecting rod, and talc is fixedly connected to the other side of the bottom end of the flat plate.

[0007] Preferably, a bottom plate is fixedly connected to the bottom end of the first movable block, the bottom plate is movably connected to the first card box, and the first movable block is movably connected to the steel box girder body through the bottom plate.

[0008] Preferably, the bottom end of the second movable block is fixedly connected with a vertical rod, a socket is opened on one side of the bottom end of the second card box, the vertical rod is movably connected to the socket, and the second movable block is movably connected to the steel box girder body through the vertical rod.

[0009] Preferably, a slideway is provided at the bottom end of the second card box, the inner side of the slideway is slidably connected to a limit rod, the limit rod is fixedly connected to the plug block, and the plug block is movably connected to the second card box via the limit rod.

[0010] Preferably, the first card box and the second card box are both fixedly connected to the steel box girder body, and the first card box and the second card box are movably connected to the first movable block and the second movable block respectively through the steel box girder body.

[0011] Preferably, a groove is provided at the top end of the steel box girder body, the flat plate is movably embedded in the groove and connected thereto, and the flat plate is movably connected to the steel box girder body via the groove.

[0012] Preferably, the clamping plate is movably embedded in the cavity, and the connecting rod is movably embedded in the partition through the clamping plate.

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

[0014] 1. The steel box girder installation structure uses cavities, connecting rods, flat plates, clamps and talc to ensure that after the steel box girder is butt-jointed by hoisting and before welding, it can be quickly judged whether the top surfaces of the two sections of steel box girders are flush by checking whether the flat plate can fit the top surface of the steel box girder and rotate to the top surface of another steel box girder, or whether the flat plate can leave white scratches on the top surface of another steel box girder after rotation, so as to facilitate the detection of the horizontality of the two sections of the steel box girder after butt-jointing.

[0015] 2. The steel box girder installation structure uses the first movable block, the second movable block, the insert block, the first card box and the second card box to enable the two sections of the steel box girder to be horizontally butted and then directly inserted from the second card box into the first card box via the insert block, so that the two sections of the steel box girder can be butted together by snapping together, avoiding the need to butt-lock the two sections with connecting bolts, thereby simplifying the operation steps of the steel box girder during welding and saving the time consumed in the steel box girder welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the first movable block and the first card box of the utility model;

[0018] Figure 3 This is a schematic diagram of the cavity and cardboard structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the second card box and the plug-in block structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the groove and flat plate structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the talc and connecting rod structure of the utility model.

[0022] In the figure: 1, steel box girder body; 2, first movable block; 3, first card box; 4, partition; 5, flat plate; 6, groove; 7, second movable block; 8, rope threading groove; 9, cross bar; 10, bottom plate; 11, vertical bar; 12, plug block; 13, opening; 14, second card box; 15, limit rod; 16, connecting rod; 17, cavity; 18, card plate; 19, slideway; 20, socket; 21, talc. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 an indirect connection 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.

[0026] like Figures 1 to 6As shown, the steel box girder installation structure of this embodiment includes a steel box girder body 1, two first movable blocks 2 are arranged on one side of the top of the steel box girder body 1, and the cross-sections of the first movable block 2 and the second movable block 7 are both "I-shaped", so that the first movable block 2 and the second movable block 7 are not easy to slide into the first card box 3 or the second card box 14 when not hoisted, so as to facilitate the connection of the first movable block 2 and the second movable block 7 with the hoisting rope, the first card box 3 is arranged at the bottom of the first movable block 2, and two second movable blocks 7 are arranged on the other side of the top of the steel box girder body 1, and one side of the bottom end of the second movable block 7 is beveled so that the side of the second movable block 7 close to the plug block 12 is an inclined surface, and the first movable block 2 and the second The top of the movable block 7 is provided with a rope threading groove 8, and the middle of the rope threading groove 8 is fixedly connected with a cross bar 9. The rope threading groove 8 and the cross bar 9 are convenient for connecting the movable block with the rope used for lifting, so as to facilitate the lifting of the steel box girder. The bottom of the second movable block 7 is provided with a second card box 14, and the side walls of the first card box 3 and the second card box 14 are provided with an opening 13. The first card box 3 and the second card box 14 are provided with an inner cavity, and the first card box 3 and the second card box 14 are both rectangular structures, so that the plug-in block 12 has enough space to slide, so that the plug-in block 12 can smoothly slide from the second card box 14 into the first card box 3 of the other steel box girder body 1, thereby realizing the locking and docking of the two sections of steel box girders;

[0027] The second card box 14 is provided with an insert block 12 inside, and the end of the insert block 12 close to the second movable block 7 is also beveled, so that the end face of the insert block 12 close to the second movable block 7 is also a bevel. When the second movable block 7 slides into the second card box 14, the bevel of the second movable block 7 will match the bevel on the insert block 12, and push the insert block 12 from the second card box 14 to slide into the first card box 3 on another section of the steel box beam. The middle part of the steel box beam body 1 is fixedly connected with a partition plate 4, and a cavity 17 is opened inside the partition plate 4. The function of the cavity 17 is The clamping plate 18 is limited so that the height at which the connecting rod 16 and the flat plate 5 are pulled out is restricted, which is more conducive to the detection of the flatness of the top surface of the steel box girder by the flat plate 5. A flat plate 5 is provided on the top of the steel box girder body 1, and a connecting rod 16 is fixedly connected to one side of the bottom end of the flat plate 5, and a clamping plate 18 is fixedly connected to the bottom end of the connecting rod 16, and talc 21 is fixedly connected to the other side of the bottom end of the flat plate 5. The talc 21 is a white solid and will leave a white mark when scratched on a dark object, thereby facilitating the operator to judge the flatness of the steel box girder by the scratches.

[0028] Specifically, the bottom end of the first movable block 2 is fixedly connected with a base plate 10, and the base plate 10 is movably connected to the first card box 3. The first movable block 2 is movably connected to the steel box girder body 1 through the base plate 10. The base plate 10 can limit the first movable block 2 from being pulled out from the top of the steel box girder, thereby increasing the stability of the first movable block 2 when it is lifted.

[0029] Furthermore, a vertical rod 11 is fixedly connected to the bottom end of the second movable block 7, and a socket 20 is opened on one side of the bottom end of the second card box 14. The vertical rod 11 is movably connected to the socket 20. The second movable block 7 is movably connected to the steel box girder body 1 through the vertical rod 11. The vertical rod 11 and the socket 20 enable the second movable block 7 to maintain a vertical state when it slides into the second card box 14, thereby facilitating the matching of the inclined surface on the second movable block 7 with the inclined surface at the end of the plug block 12, so that the second movable block 7 can push the plug block 12.

[0030] Furthermore, a slide 19 is provided at the bottom end of the second card box 14, and the inner side of the slide 19 is slidably connected to a limit rod 15, the limit rod 15 is fixedly connected to the plug block 12, and the plug block 12 is movably connected to the second card box 14 through the limit rod 15. The function of the limit rod 15 is to enable the plug block 12 to remain in the same straight line when sliding from the second card box 14 into the first card box 3, thereby facilitating the plug block 12 to slide smoothly into the first card box 3.

[0031] Furthermore, the first card box 3 and the second card box 14 are both fixedly connected to the steel box girder body 1, and the first card box 3 and the second card box 14 are movably connected to the first movable block 2 and the second movable block 7 respectively through the steel box girder body 1. The openings 13 of the first card box 3 and the second card box 14 will overlap after the two sections of the steel box girder are connected, so that the plug block 12 can slide smoothly through the opening 13.

[0032] Furthermore, a groove 6 is opened at the top of the steel box girder body 1, and the flat plate 5 is movably embedded in the groove 6. The flat plate 5 is movably connected to the steel box girder body 1 through the groove 6. The groove 6 can easily lift the flat plate 5 from the top of the steel box girder body 1, thereby facilitating the use of the operator.

[0033] Furthermore, the clamping plate 18 is movably embedded in the cavity 17, and the connecting rod 16 is movably embedded in the partition 4 through the clamping plate 18. The clamping plate 18 can be restricted in the partition 4 by the cavity 17, and the flat plate 5 remains connected to the steel box girder body 1, thereby avoiding the loss of the flat plate 5.

[0034] The method of using this embodiment is as follows: when using the steel box girder installation structure, the steel box girder body 1 needs to be passed through the rope grooves 8 and the cross bar 9 on the first movable block 2 and the second movable block 7, so that the steel box girder body 1 can be lifted and connected. Before the lifted steel box girder body 1 is welded with another steel box girder fixed on the pier, the flat plate 5 on the top side of the steel box girder body 1 fixed on the pier can be lifted from the groove 6, so that the top of the clamping plate 18 fits with the top of the inner side of the cavity 17, so that the flat plate 5 is separated from the groove 6, and at the same time, the bottom of the flat plate 5 fits with the top surface of the steel box girder body 1, and then the flat plate 5 is horizontally rotated along the top surface of the two sections of the steel box girder with the connecting rod 16 as the center. If the flat plate 5 can be rotated but no white scratches are left or the flat plate 5 cannot be rotated to the lifted steel box girder body 1 If the flat plate 5 can be smoothly rotated to the top surface of the lifted steel box girder body 1 and can leave a complete semicircular white scratch on the top surface of the lifted steel box girder body 1, it means that the top surfaces of the two sections of the steel box girder are not flush and need to be further adjusted. If the flat plate 5 can be smoothly rotated to the top surface of the lifted steel box girder body 1 and can leave a complete semicircular white scratch on the top surface of the lifted steel box girder body 1, it means that the top surfaces of the two sections of the steel box girder are flat. Then the lifted steel box girder body 1 can be lowered to the pier. At this time, the second movable block 7 slides into the second card box 14 through the vertical rod 11 under the action of gravity alone, and then pushes the plug block 12 in the second card box 14 through the inclined surface of the bottom end, so that the plug block 12 slides from the second card box 14 in the steel box girder body 1 just placed on the pier into the first card box 3 in the steel box girder body 1 that has been fixed on the pier. At this time, the two sections of the steel box girder are locked by the plug block 12, and then the subsequent welding steps can be started.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A steel box girder installation structure, comprising a steel box girder body (1), characterized in that: Two first movable blocks (2) are provided on one side of the top of the steel box girder body (1), a first card box (3) is provided at the bottom of the first movable block (2), two second movable blocks (7) are provided on the other side of the top of the steel box girder body (1), the tops of the first movable blocks (2) and the second movable blocks (7) are both provided with rope threading grooves (8), the middle of the rope threading grooves (8) are fixedly connected with a cross bar (9), the bottom of the second movable block (7) is provided with a second card box (14), and one side wall of the first card box (3) and the second card box (14) is both provided with an opening (13); An insert block (12) is provided inside the second card box (14); a partition (4) is fixedly connected to the middle of the steel box girder body (1); a cavity (17) is opened inside the partition (4); a flat plate (5) is provided on the top of the steel box girder body (1); a connecting rod (16) is fixedly connected to one side of the bottom end of the flat plate (5); a card plate (18) is fixedly connected to the bottom end of the connecting rod (16); and a talc (21) is fixedly connected to the other side of the bottom end of the flat plate (5).

2. A steel box girder installation structure according to claim 1, characterized in that: The bottom end of the first movable block (2) is fixedly connected to a bottom plate (10), the bottom plate (10) is movably connected to the first card box (3), and the first movable block (2) is movably connected to the steel box beam body (1) via the bottom plate (10).

3. The steel box girder installation structure according to claim 1, characterized in that: The bottom end of the second movable block (7) is fixedly connected to a vertical rod (11), a socket (20) is provided on one side of the bottom end of the second card box (14), the vertical rod (11) is movably connected to the socket (20), and the second movable block (7) is movably connected to the steel box girder body (1) via the vertical rod (11).

4. The steel box girder installation structure according to claim 1, characterized in that: A slideway (19) is provided at the bottom end of the second card box (14), the inner side of the slideway (19) is slidably connected to a limit rod (15), the limit rod (15) is fixedly connected to the insert block (12), and the insert block (12) is movably connected to the second card box (14) via the limit rod (15).

5. The steel box girder installation structure according to claim 1, characterized in that: The first clamping box (3) and the second clamping box (14) are both fixedly connected to the steel box girder body (1); the first clamping box (3) and the second clamping box (14) are movably connected to the first movable block (2) and the second movable block (7) respectively through the steel box girder body (1).

6. The steel box girder installation structure according to claim 1, characterized in that: A groove (6) is provided at the top end of the steel box girder body (1), the flat plate (5) is movably embedded in the groove (6), and the flat plate (5) is movably connected to the steel box girder body (1) via the groove (6).

7. The steel box girder installation structure according to claim 1, characterized in that: The clamping plate (18) is movably embedded in the cavity (17), and the connecting rod (16) is movably embedded in the partition plate (4) via the clamping plate (18).

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