Precise in-place mounting structure for steel box girder

Abstract

The utility model discloses a steel box girder accurate in-position installation structure, which relates to the technical field of steel box girder positioning installation equipment, and comprises a u-shaped bottom plate, a sliding bottom plate, a vertical installation plate, a shell, vertical rods, an outer supporting barrel, a longitudinal positioning mechanism and a transverse positioning mechanism, and a plurality of vertical rods are respectively arranged on two sides of the upper end of a transverse plate of the u-shaped bottom plate at equal intervals. A sliding bottom plate is arranged at the upper end of a transverse plate of the u-shaped bottom plate in a sliding mode, the sliding bottom plate is driven by a transverse positioning mechanism to slide, and the multiple outer supporting barrels are driven by a longitudinal positioning mechanism to slide. And the subsequent steel box girders are positioned and mounted through the limiting shafts in the first two mounted steel box girders, and the unmatched steel box girders can be found in time according to the matching condition of the limiting shafts and the first limiting holes, so that the influence on the subsequent mounting is avoided.

Description

Technical Field

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

[0002] Steel box girder, also known as box beam, is a commonly used structural form for long-span bridges. It is generally used on bridges with larger spans. Because multiple steel box girders are usually used in the construction of long-span bridges, when installing steel box girders, it is usually necessary to ensure that the installation position is accurate. If the steel box girder is installed without a positioning structure, the position of the subsequently installed steel box girder will be misaligned, resulting in the need for rework.

[0003] The existing technology usually lifts the steel box girder by means of a ceiling. Since the steel box girder is a prefabricated material, there will be positioning holes for positioning when the steel box girder is produced. When the steel box girder is lifted, these holes need to be manually aligned and installed. This method is labor-intensive. At the same time, if there is a problem of positioning hole deviation, it is difficult to find the steel box girder with hole position deviation by manual means, which will also affect the subsequent construction.

[0004] In order to solve the above problems, a steel box girder precise installation structure is proposed. Utility Model Content

[0005] In response to the above-mentioned problems, the utility model provides a structure for accurately positioning and installing a steel box girder, which solves the problem that the existing technology usually lifts the steel box girder by means of a suspended ceiling. Since the steel box girder is a prefabricated material, there will be positioning holes for positioning when the steel box girder is produced and shipped from the factory. When the steel box girder is lifted, these holes need to be manually aligned and installed, which is more labor-intensive. At the same time, if the problem of positioning hole deviation occurs, it is difficult to find the steel box girder with hole position deviation by manual means, which will also affect the construction problems described later.

[0006] The technical solution adopted by the utility model is as follows: comprising a U-shaped bottom plate, a sliding bottom plate, a vertical mounting plate, a shell, a vertical rod, an outer support barrel, a longitudinal positioning mechanism, and a transverse positioning mechanism;

[0007] Several support columns are provided at the lower ends of the two beams to be installed;

[0008] A U-shaped bottom plate is movably provided between the two beams to be installed;

[0009] A number of vertical rods are provided at equal intervals on both sides of the upper end of the horizontal plate of the U-shaped bottom plate;

[0010] A sliding bottom plate is slidably provided on the upper end of the horizontal plate of the U-shaped bottom plate, and the sliding bottom plate is driven to slide by a horizontal positioning mechanism;

[0011] The sliding bottom plate is respectively provided with two first rectangular through grooves;

[0012] The plurality of vertical rods are all slidably arranged to penetrate the two first rectangular through slots;

[0013] An outer support barrel is slidably sleeved on the outer wall of each of the vertical rods, and each of the outer support barrels is driven to slide by a longitudinal positioning mechanism;

[0014] Several steel box girders to be installed can be detachably mounted on the upper ends of several outer support barrels;

[0015] A vertical mounting plate is vertically provided on the upper right end of the sliding base plate;

[0016] A housing is provided at the upper end of the vertical mounting plate, and a control platform is provided inside the housing;

[0017] A light-transmitting glass plate is provided on the front wall of the shell.

[0018] Furthermore, the longitudinal positioning mechanism comprises a first connecting rod, a second connecting rod, a rectangular block, a first rectangular sliding block, and a first threaded rod;

[0019] Rectangular blocks are fixed to the upper ends of the two vertical plates of the U-shaped bottom plate;

[0020] The upper ends of the two rectangular blocks are each provided with a first rectangular sliding groove, and a first rectangular sliding block is slidably provided in the two first rectangular sliding grooves respectively;

[0021] A first threaded rod is threadedly provided in each of the two first rectangular sliding blocks, and the first ends of the two first threaded rods are rotatably mounted on the first side walls of the two first rectangular sliding grooves respectively;

[0022] The second ends of the two first threaded rods rotate and penetrate the second side walls of the two first rectangular sliding slots respectively, and a first motor is provided;

[0023] The upper ends of the two first rectangular sliding blocks are respectively provided with mounting brackets, and the first ends of the first connecting shafts are respectively fixed on the inner walls of the two mounting brackets;

[0024] The first ends of the second connecting rods are rotatably sleeved on the outer sides of the second ends of the two first connecting shafts;

[0025] Second connecting shafts are respectively provided on the outer walls of the plurality of outer support barrels, and a first connecting rod is fixedly sleeved on the plurality of second connecting shafts located on the same side;

[0026] A third connecting shaft is respectively provided at the middle end of the outer wall of the two first connecting rods;

[0027] The second ends of the two second connecting rods are rotatably sleeved on the two third connecting shafts respectively.

[0028] Furthermore, the lateral positioning mechanism comprises a slide bar, a T-shaped bar, an L-shaped plate, a second motor, a second rectangular slider, and a second threaded bar;

[0029] A second rectangular through groove is respectively provided on the outer walls of the two vertical plates of the U-shaped bottom plate;

[0030] A second rectangular slider is slidably provided in each of the two second rectangular through-slots, and the inner walls of the two second rectangular sliders slide through the two second rectangular through-slots and are fixedly connected to the middle portions of the two side walls of the sliding bottom plate;

[0031] A second threaded rod is threadedly provided in each of the two second rectangular sliding blocks;

[0032] The first ends of the two second threaded rods are rotatably connected to the first side walls of the two second rectangular through slots respectively;

[0033] The second ends of the two second threaded rods are respectively rotated to pass through the second side walls of the two second rectangular through slots, and a second motor is provided;

[0034] A second rectangular sliding groove is provided on both sides of the vertical mounting plate, and the first end of the sliding rod is slidably provided in the two second rectangular sliding grooves respectively;

[0035] The second ends of the two sliding rods are respectively fixed with the first ends of the horizontal plates of the T-shaped rods, and the vertical plates of the two T-shaped rods are respectively slidably arranged on the upper ends of the beams to be installed;

[0036] The two steel box girders to be installed are detachably mounted on the front side walls of the vertical plates of the two T-shaped bars;

[0037] A horizontal plate of the same L-shaped plate is fixed on the front walls of the two outer support barrels away from the vertical mounting plate;

[0038] The front walls of the two steel box girders to be installed are respectively in detachable contact with the rear walls of the vertical plates of the L-shaped plate.

[0039] Furthermore, both sides of the rear wall of the vertical plate of the L-shaped plate are detachably provided with limiting shafts;

[0040] A first limiting hole cooperating with the limiting shaft is provided on the front walls of the plurality of steel box girders to be installed;

[0041] The two limiting shafts are respectively detachably and slidably arranged to penetrate through the plurality of first limiting holes.

[0042] Furthermore, one end of the two limiting shafts close to the vertical plate of the L-shaped plate respectively passes through the vertical plate of the L-shaped plate and is detachably provided with a chuck;

[0043] The two chucks are detachably arranged on both sides of the outer wall of the vertical plate of the L-shaped plate.

[0044] Furthermore, rectangular columns are provided on the left and right side walls of the shell respectively;

[0045] The lower ends of the two rectangular columns are respectively provided with T-shaped sliding grooves, and the two T-shaped sliding grooves are respectively provided with horizontal plates with T-shaped sliders;

[0046] The lower ends of the vertical plates of the two T-shaped sliders are respectively provided with hook lines;

[0047] The lower ends of the two hook lines are respectively fixed with hooks, and the two hooks are respectively detachably connected to the two steel box girders to be installed;

[0048] The rear side walls of the transverse plates of the two T-shaped sliding blocks are movably connected to the side walls of the two T-shaped sliding grooves through hydraulic rods.

[0049] Furthermore, a cavity is provided on the rear wall of the shell, a ladder is provided at the lower end of the cavity, and the ladder is provided on the rear wall of the vertical mounting plate.

[0050] Furthermore, two retractable rollers are respectively provided on both sides of the vertical plate of the U-shaped bottom plate.

[0051] Advantages of this utility model:

[0052] The utility model can accurately position the steel box girder to be installed at the specified value position under the joint positioning of the longitudinal positioning mechanism and the transverse positioning mechanism, and position and install the subsequent steel box girders through the limiting shafts in the first two installed steel box girders. When installing the subsequent steel box girders, the mismatched steel box girders can be discovered in time through the matching situation of the limiting shaft and the first limiting hole, so as to avoid affecting the subsequent installation.

[0053] In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0055] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0056] Figure 2 This is a schematic diagram of the working principle of the longitudinal positioning mechanism of the utility model;

[0057] Figure 3This is a schematic diagram of the installation of the first rectangular slider of the present invention;

[0058] Figure 4 This is a side view of the overall structure of the longitudinal positioning mechanism of the utility model;

[0059] Figure 5 This is a schematic diagram of the overall structure of the U-shaped bottom plate of the utility model;

[0060] Figure 6 This is a schematic diagram of the rear structure of the utility model;

[0061] Figure 7 This is a schematic diagram of the installation of the L-shaped plate of the utility model;

[0062] Figure 8 This is a schematic diagram of the working principle of the lateral positioning mechanism of the utility model;

[0063] Figure 9 This is a schematic diagram of the overall structure of the lateral positioning mechanism of the utility model;

[0064] Figure 10 This is a schematic diagram of the overall structure of the steel box girder to be installed in the present invention.

[0065] Reference numerals:

[0066] 1 is the beam to be installed, 2 is the support, 3 is the sliding rod, 4 is the T-bar, 5 is the steel box beam to be installed, 6 is the U-shaped bottom plate, 7 is the sliding bottom plate, 8 is the rectangular column, 9 is the vertical mounting plate, 10 is the shell, 11 is the light-transmitting glass plate, 12 is the L-shaped plate, 13 is the limit shaft, 14 is the vertical rod, 15 is the outer support barrel, 16 is the first connecting rod, 17 is the second connecting rod, 18 is the rectangular block, 19 is the first rectangular slider, 20 is the second motor, 21 is the T-shaped slider, 22 is the ladder, and 23 is the retractable roller;

[0067] 501 is the first limiting hole, 502 is the second limiting hole;

[0068] 601 is a second rectangular through slot;

[0069] 701 is a first rectangular through slot, 702 is a second rectangular sliding block, and 7021 is a second threaded rod;

[0070] 801 is a T-type chute;

[0071] 901 is a second rectangular chute;

[0072] 1001 is a cavity;

[0073] 1301 is a chuck;

[0074] 1801 is a first rectangular chute;

[0075] 1901 is a first threaded rod. DETAILED DESCRIPTION

[0076] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not intended to limit the utility model.

[0077] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the 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 operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0078] refer to Figures 1 to 10 , a steel box girder precise positioning installation structure, comprising a U-shaped bottom plate 6, a sliding bottom plate 7, a vertical mounting plate 9, a shell 10, a vertical rod 14, an outer support barrel 15, a longitudinal positioning mechanism, and a transverse positioning mechanism;

[0079] The lower ends of the two beams 1 to be installed are each installed with a plurality of support columns 2, which are used to support the beams 1 to be installed. Since the steel box beam is usually installed between two beams to be considered as a whole, the steel box beam 5 to be installed described later is installed based on the two beams 1;

[0080] A U-shaped bottom plate 6 is movably installed between the two beams 1 to be installed. The U-shaped bottom plate 6 is a supporting component of the device. The U-shaped bottom plate 6 can be placed in a fixed state or a movable state by the retractable roller 23 described later.

[0081] A number of vertical rods 14 are installed at equal intervals on both sides of the upper end of the horizontal plate of the U-shaped bottom plate 6. The vertical rods 14 are used to provide a fixed sliding track for the outer support barrel 15 described later to ensure that it does not rotate during the sliding process. The distance between the vertical rods 14 can also be determined according to actual conditions. The best choice is to make the top of the vertical rod 14 just located at the middle of the lower end of the steel box girder 5 to be installed, so that the force on all sides of the steel box girder 5 is more balanced when it is supported.

[0082] A sliding base plate 7 is slidably mounted on the upper end of the transverse plate of the U-shaped base plate 6. The sliding base plate 7 is driven to slide by a transverse positioning mechanism. Driven by the transverse positioning mechanism, the sliding base plate 7 can slide back and forth along the upper end of the transverse plate of the U-shaped base plate 6. The sliding base plate 7 can push the steel box girder 5 to be installed to move horizontally and achieve horizontal positioning in cooperation with the L-shaped plate 12 described later.

[0083] Two first rectangular through grooves 701 are arranged on the sliding base plate 7 respectively;

[0084] The vertical rods 14 are slidably penetrated through the two first rectangular through grooves 701, which can ensure that the sliding base plate 7 does not interfere with the vertical rods 14 during the sliding process;

[0085] The outer walls of the vertical rods 14 are slidably sleeved with outer support barrels 15, and the outer support barrels 15 are driven to slide by the longitudinal positioning mechanism. Before the steel box girder 5 is installed, the longitudinal positioning mechanism is usually operated to lift the outer support barrels 15 to a specified height, and the installation of the steel box girder 5 is carried out with the height as the longitudinal reference point. The longitudinal height of the installed steel box girder 5 is the height defined by the longitudinal positioning mechanism, and the horizontal positioning of the steel box girder 5 is realized in cooperation with the transverse positioning mechanism;

[0086] The steel box girders 5 to be installed are detachably arranged on the upper ends of the outer support barrels 15;

[0087] The upper right end of the sliding base plate 7 is vertically provided with a vertical mounting plate 9;

[0088] The upper end of the vertical mounting plate 9 is provided with a housing 10, and the housing 10 is provided with an operation platform. The housing 10 is used to carry the operation platform, which can drive the longitudinal positioning mechanism, the transverse positioning mechanism, and the hydraulic rod described later. This is a prior art and will not be described here;

[0089] The front wall of the housing 10 is provided with a light-transmitting glass plate 11. The user can monitor the positioning of the steel box girder with the naked eye through the light-transmitting glass plate 11, which is convenient for timely adjusting the operation platform and convenient for controlling the installation progress and issuing instructions to the workers installing the steel box girder.

[0090] The longitudinal positioning mechanism comprises a first connecting rod 16, a second connecting rod 17, a rectangular block 18, a first rectangular sliding block 19, and a first threaded rod 1901;

[0091] The upper ends of the two vertical plates of the u-shaped base plate 6 are respectively fixedly provided with the rectangular blocks 18;

[0092] The upper ends of the two rectangular blocks 18 are provided with first rectangular sliding grooves 1801, and the first rectangular sliding blocks 19 are slidably arranged in the first rectangular sliding grooves 1801 respectively;

[0093] The first threaded rods 1901 are threadedly penetrated and installed in the two first rectangular sliding blocks 19, and the first ends of the two first threaded rods 1901 are rotatably installed on the first side walls of the two first rectangular sliding grooves 1801 respectively;

[0094] The second ends of the two first threaded rods 1901 rotate and pass through the second side walls of the two first rectangular sliding slots 1801, and the first motor is installed;

[0095] The upper ends of the two first rectangular sliders 19 are respectively mounted with mounting brackets, and the first ends of the first connecting shafts are respectively fixedly mounted on the inner walls of the two mounting brackets;

[0096] The outer sides of the second ends of the two first connecting shafts are respectively rotatably sleeved with the first ends of the second connecting rods 17;

[0097] Second connecting shafts are respectively installed on the outer walls of the plurality of outer support barrels 15, and a first connecting rod 16 is fixedly sleeved on the plurality of second connecting shafts located on the same side;

[0098] A third connecting shaft is respectively installed at the middle end of the outer wall of the two first connecting rods 16;

[0099] The second ends of the two second connecting rods 17 are respectively rotatably sleeved on the two third connecting shafts. By starting the first motor, the output shaft of the first motor starts to rotate, and in the process of rotation, the two first threaded rods 1901 are driven to start rotating. The first rectangular slider 19 threadedly connected to the two first threaded rods 1901 now has the ability to slide in the two first rectangular slide grooves 1801. Figure 2 When the two first rectangular sliders 19 start to slide to the right, the second connecting rods 17 on both sides start to deflect upward, and in the process of upward deflection, they respectively drive the first connecting rods 16 on both sides to slide upward. Since the several outer support barrels 15 on one side and the first connecting rods 16 cooperating therewith are fixedly connected, when the first connecting rod 16 is driven to slide upward, all the outer support barrels 15 cooperating therewith will be lifted upward. At the same time, since the sliding trajectory of the outer support barrel 15 is determined, the first connecting rod 16 cooperating therewith can only slide upward. When the outer support barrel 15 is lifted upward to a certain height, this height is usually flush with the height of the crossbeam 1 to be installed, and the steel box beam to be installed contacts the upper end of the outer support barrel 15 to achieve longitudinal positioning.

[0100] The lateral positioning mechanism includes a slide bar 3, a T-shaped bar 4, an L-shaped plate 12, a second motor 20, a second rectangular slider 702, and a second threaded bar 7021;

[0101] A second rectangular through slot 601 is provided on the outer walls of the two vertical plates of the U-shaped bottom plate 6;

[0102] The two second rectangular through slots 601 are respectively slidably mounted with second rectangular sliders 702 . The inner walls of the two second rectangular sliders 702 respectively slide through the two second rectangular through slots 601 and are fixedly connected to the middle of the two side walls of the sliding base 7 .

[0103] A second threaded rod 7021 is threadedly installed in each of the two second rectangular sliders 702;

[0104] The first ends of the two second threaded rods 7021 are rotatably connected to the first side walls of the two second rectangular through slots 601 respectively;

[0105] The second ends of the two second threaded rods 7021 rotate through the second side walls of the two second rectangular through slots 601 and are respectively installed with the second motor 20;

[0106] A second rectangular sliding groove 901 is provided on both sides of the vertical mounting plate 9, and the first end of the sliding rod 3 is slidably mounted in the two second rectangular sliding grooves 901;

[0107] The second ends of the two slide bars 3 are respectively fixedly mounted with the first ends of the horizontal plates of the T-shaped bars 4, and the vertical plates of the two T-shaped bars 4 are respectively slidably arranged on the upper ends of the beams 1 to be mounted;

[0108] The two steel box beams 5 to be installed are detachably mounted on the front side walls of the vertical plates of the two T-shaped bars 4;

[0109] A horizontal plate of the same L-shaped plate 12 is fixedly mounted on the front wall of the two outer support barrels 15 away from the vertical mounting plate 9;

[0110] The front walls of the two steel box beams 5 to be installed are respectively in detachable contact with the rear walls of the vertical plates of the L-shaped plate 12. The user controls the two second motors 20 to start the two second motors 20 to rotate. The output shafts of the two second motors 20 drive the second threaded rods 7021 to start rotating. During the rotation, the two second threaded rods 7021 respectively drive the second rectangular sliders 702 threadedly penetrated therewith to start sliding. During the sliding process, the two second rectangular sliders 20 drive the sliding base plate 7 fixedly installed therebetween to start sliding. Before using this device, the user needs to place the sliding rods 3 on both sides on the upper ends of the beams 1 to be installed on both sides. According to the different heights of the beams 1 to be installed, the height of the sliding rod 3 also changes accordingly. When the sliding base plate 7 starts to slide, it also drives the sliding rods 3 on both sides to start moving along the two beams to be installed. When the upper end of the installed crossbeam 1 slides, the two sliding rods 3 respectively drive the T-shaped rods 4 fixed thereto to slide along the upper ends of the two crossbeams 1 to be installed. At this time, the steel box girder 5 to be installed also starts to move under the control of the hook described later, so that the rear side wall of the steel box girder 5 to be installed contacts the front wall of the vertical rods of the two T-shaped rods 4, and pushes the steel box girder 5 to slide under the sliding of the T-shaped rods 4. When the front wall of the steel box girder 5 contacts the rear wall of the vertical plate of the L-shaped plate 12, horizontal positioning is achieved. Since the horizontal plate of the L-shaped plate 12 is flush with the ends of the two outer support barrels 15 at the front end, the height of the L-shaped plate 12 has been limited by the longitudinal positioning mechanism. At this time, as the front wall and rear wall of the steel box girder 5 to be installed are respectively clamped on the rear wall of the vertical plate of the L-shaped plate 12 and the front wall of the vertical rod of the T-shaped rod 14, the horizontal and vertical positioning of the steel box girder 5 to be installed can be achieved.

[0111] The two sides of the rear wall of the vertical plate of the L-shaped plate 12 are respectively detachably mounted with limit shafts 13;

[0112] The front walls of the plurality of steel box beams 5 to be installed are each provided with a first limiting hole 501 which cooperates with the limiting shaft 13;

[0113] The two limiting shafts 13 are respectively detachably slidably arranged between several first limiting holes 501. It should be noted that when the above-mentioned horizontal positioning mechanism and the longitudinal positioning mechanism are used to position the first two steel box girders 5 to be installed, since the first limiting holes 501 of the first two steel box girders have been matched with the two limiting shafts 13 located on the rear side of the L-shaped plate vertical plate, the subsequent steel box girders 5 to be installed only need to match the first limiting holes 501 with the limiting shafts 13.

[0114] One end of the two limiting shafts 13 close to the vertical plate of the L-shaped plate 12 respectively passes through the vertical plate of the L-shaped plate 12 and is detachably mounted with a chuck 1301;

[0115] The two chucks 1301 are detachably mounted on both sides of the outer wall of the vertical plate of the L-shaped plate 12. The user can remove the two chucks 1301 from the front side of the vertical plate of the L-shaped plate 12, and at the same time disengage the chucks 1301 from the limit shaft 13, and pull the two limit shafts 13 out of the vertical plate of the L-shaped plate 12 so that they are not in contact with the vertical plate of the L-shaped plate 12. At this time, the first two steel box beams 5 to be installed can begin to move toward each other under human action, and then the limit shaft 13 is welded and fixed to the first limit hole 501, and fixed to the crossbeam 1 to be installed through a fixing piece, so as to provide a reference for the installation between the subsequent steel box beams 5 to be installed. The user can position the two steel box beams 5 in the same row through the second limit holes 502 on the side walls of the two adjacent steel box beams 5. If the subsequent steel box beam 5 slides under the drive of the horizontal positioning mechanism, it is found that the first limit hole 501 does not match the limit shaft 13, it can be confirmed that the steel box beam does not match and needs to be replaced in time.

[0116] Rectangular columns 8 are mounted on the left and right side walls of the housing 10 respectively;

[0117] The lower ends of the two rectangular columns 8 are respectively provided with T-shaped slots 801, and the horizontal plates of the T-shaped sliders 21 are respectively slidably installed in the two T-shaped slots 801;

[0118] The lower ends of the vertical plates of the two T-shaped sliders 21 are respectively installed with hook lines;

[0119] The lower ends of the two hook lines are respectively fixed with hooks, and the two hooks are detachably connected to the two steel box girders to be installed;

[0120] The rear side walls of the transverse plates of the two T-shaped sliders 21 are movably connected to the side walls of the two T-shaped slide grooves 801 through hydraulic rods. The user controls the two hydraulic rods to make the two T-shaped sliders 21 slide back and forth in the two T-shaped slide grooves 801. The steel box girder 5 to be installed is lifted by the hook line and then, with the cooperation of the T-shaped sliders 21, the steel box girder 5 to be installed can be subjected to an upward pulling force and can also initially have the ability to move horizontally. With the cooperation of the T-rod 4, the steel box girder 5 to be installed can be pushed to the designated positioning point.

[0121] A cavity 1001 is provided on the rear wall of the shell 10, and a ladder 22 is installed at the lower end of the cavity 1001. The ladder 22 is provided on the rear wall of the vertical mounting plate 9. Its function is to facilitate the commander to climb into the cavity 1001 to operate the operating platform.

[0122] Two retractable rollers 23 are installed on both sides of the vertical plate of the U-shaped base plate 6. The rollers 23 are installed on both sides of the U-shaped base plate 6 through hydraulic rods. This is the existing technology and will not be described in detail. After a length of steel box girder 5 is installed, the rollers 23 can be lowered to support the equipment to continue moving to the next construction site for construction.

[0123] Implementation method of this utility model:

[0124] Lower the roller 23 of the equipment and move the U-shaped bottom plate 6 between the two beams 1 to be installed. The operator enters the operating platform through the ladder 22 and slides the slide bars 3 on both sides to the upper ends of the two beams 1 to be installed.

[0125] At this time, according to the height of the beams to be installed on both sides, operate the first motors on both sides to raise the plurality of outer support barrels 15 upward and flush with the beams 1 to be installed on both sides. At this time, the horizontal plate of the L-shaped plate 12 fixedly connected to the two outer support barrels 15 located at the front is also at the same height as the beams 1 to be installed on both sides;

[0126] Operate the hook to lift the first two steel box girders 5 to be installed and lift them above the two cross beams 1 to be installed, but do not touch the cross beams 1 to avoid friction between the upper ends of the cross beams 1 and the bottom walls of the steel box girders 5;

[0127] At this time, the second motor 20 is operated to make the sliding rods 3 on both sides drive the T-shaped rods 4 on both sides to move forward. In the process of moving forward, the front walls of the vertical rods of the T-shaped rods 4 on both sides will contact and push the rear side walls of the steel box girder 5 to be installed. At this time, it is only necessary to ensure that the hook provides a preliminary pulling force for the steel box girder 5 to be installed.

[0128] The steel box girder 5 to be installed is ensured to be matched with the first limiting hole and the limiting axis 13 during the process of being pushed by the T-bar 4. This process can be observed by the commander located in the housing 10 through the light-transmitting glass plate 11 and can be communicated with the installation workers located on the two beams 1 through the intercom.

[0129] Since the height of the L-shaped plate 12 is limited, the limiting axis 13 located on the rear wall of the vertical plate of the L-shaped plate 12 is also limited in height. Therefore, when the first two steel box girders 5 to be installed pass through the two limiting axes 13, their installation height is initially limited.

[0130] When the front walls of the first two steel box girders 5 to be installed are in contact with the rear walls of the vertical plates of the L-shaped plate 12, the initial positioning of the first two steel box girders 5 is completed;

[0131] The two chucks are removed, and the two limiting shafts 13 are respectively welded to the first limiting holes 501 located in the first two steel box beams 5. At this time, since the two limiting shafts 13 are no longer fixed by the vertical plates of the L-shaped plate 12, the first two steel box beams 5 are separated from the support and slowly begin to contact the horizontal plates of the L-shaped plate 12 with the cooperation of the lowering of the hook. The staff now moves the first two steel box beams 5 toward each other and fixes them with fixing parts, and fixes them on the two crossbeams 1 to be installed. At this time, the first two steel box beams 5 can become the installation reference of the subsequent steel box beams, and the subsequent steel box beam installation work can be started;

[0132] When the subsequent steel box girders 5 are installed, the first limiting hole 501 and the limiting axis 13 are ensured to fit together by the hook transportation, and can be fixed with the cooperation of the T-bar 4. The outer support barrel 15 located below the subsequent steel box girders 5 plays a role in preventing the steel box girders from tilting during the hook transportation process.

[0133] The installers on the two crossbeams 1 only need to align the second limiting holes on the side walls of the two adjacent steel box beams 5 and reinforce them on the crossbeams 1 on both sides;

[0134] When it is necessary to construct the next section of the beam, it is only necessary to lower the outer support barrels 15 and separate the cross plate of the L-shaped plate 12 from the first two installed steel box beams 5, then lower the rollers 23, push the U-shaped base 6 to the next construction site and repeat the above construction steps.

[0135] The utility model can accurately position the steel box girder to be installed at the specified value position under the joint positioning of the longitudinal positioning mechanism and the transverse positioning mechanism, and position and install the subsequent steel box girders through the limiting shafts in the first two installed steel box girders. When installing the subsequent steel box girders, the mismatched steel box girders can be discovered in time through the matching situation of the limiting shaft and the first limiting hole, so as to avoid affecting the subsequent installation.

[0136] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A steel box girder precise positioning installation structure, characterized by: It comprises a U-shaped bottom plate (6), a sliding bottom plate (7), a vertical mounting plate (9), a shell (10), a vertical rod (14), an outer support barrel (15), a longitudinal positioning mechanism, and a transverse positioning mechanism; A plurality of support columns (2) are provided at the lower ends of the two beams (1) to be installed; A U-shaped bottom plate (6) is movably provided between the two beams (1) to be installed; A plurality of vertical rods (14) are provided at equal intervals on both sides of the upper end of the horizontal plate of the U-shaped bottom plate (6); A sliding bottom plate (7) is slidably provided on the upper end of the horizontal plate of the U-shaped bottom plate (6), and the sliding bottom plate (7) is driven to slide by a horizontal positioning mechanism; Two first rectangular through slots (701) are respectively provided on the sliding bottom plate (7); The plurality of vertical rods (14) are all slidably arranged to penetrate the two first rectangular through slots (701); An outer support barrel (15) is slidably sleeved on the outer wall of each of the vertical rods (14), and each of the outer support barrels (15) is driven to slide by a longitudinal positioning mechanism; A plurality of steel box beams (5) to be installed can be detachably mounted on the upper ends of a plurality of the outer support barrels (15); A vertical mounting plate (9) is vertically provided on the upper right end of the sliding base plate (7); A housing (10) is provided at the upper end of the vertical mounting plate (9), and a control platform is provided inside the housing (10); The front wall of the housing (10) is provided with a light-transmitting glass plate (11).

2. The steel box girder precise positioning installation structure according to claim 1 is characterized by: The longitudinal positioning mechanism comprises a first connecting rod (16), a second connecting rod (17), a rectangular block (18), a first rectangular sliding block (19), and a first threaded rod (1901); Rectangular blocks (18) are fixedly provided on the upper ends of the two vertical plates of the U-shaped bottom plate (6); The upper ends of the two rectangular blocks (18) are each provided with a first rectangular sliding groove (1801), and a first rectangular sliding block (19) is slidably provided in each of the two first rectangular sliding grooves (1801); A first threaded rod (1901) is threadedly provided in each of the two first rectangular sliding blocks (19), and the first ends of the two first threaded rods (1901) are rotatably provided on the first side walls of the two first rectangular sliding grooves (1801); The second ends of the two first threaded rods (1901) are respectively rotated to pass through the second side walls of the two first rectangular sliding grooves (1801) and a first motor is provided; The upper ends of the two first rectangular sliders (19) are respectively provided with mounting frames, and the first ends of the first connecting shafts are respectively fixed on the inner walls of the two mounting frames; The first ends of the second connecting rods (17) are rotatably sleeved on the outer sides of the second ends of the two first connecting shafts; Second connecting shafts are respectively provided on the outer walls of the plurality of outer support barrels (15), and a first connecting rod (16) is fixedly sleeved on the plurality of second connecting shafts located on the same side; A third connecting shaft is respectively provided at the middle end of the outer wall of the two first connecting rods (16); The second ends of the two second connecting rods (17) are rotatably sleeved on the two third connecting shafts respectively.

3. The steel box girder precise positioning installation structure according to claim 1 is characterized by: The lateral positioning mechanism comprises a slide bar (3), a T-shaped bar (4), an L-shaped plate (12), a second motor (20), a second rectangular slide bar (702), and a second threaded bar (7021); Second rectangular through grooves (601) are respectively provided on the outer walls of the two vertical plates of the U-shaped bottom plate (6); A second rectangular sliding block (702) is slidably provided in each of the two second rectangular through grooves (601), and the inner walls of the two second rectangular sliding blocks (702) slide through the two second rectangular through grooves (601) and are fixedly connected to the middle of the two side walls of the sliding bottom plate (7); A second threaded rod (7021) is threadedly provided in each of the two second rectangular sliding blocks (702); The first ends of the two second threaded rods (7021) are rotatably connected to the first side walls of the two second rectangular through slots (601) respectively; The second ends of the two second threaded rods (7021) are respectively rotated to pass through the second side walls of the two second rectangular through slots (601), and a second motor (20) is provided; Second rectangular sliding grooves (901) are respectively provided on both sides of the vertical mounting plate (9), and the first ends of the sliding rods (3) are respectively slidably provided in the two second rectangular sliding grooves (901); The second ends of the two sliding rods (3) are respectively fixed with the first ends of the horizontal plates of the T-shaped rods (4), and the vertical plates of the two T-shaped rods (4) are respectively slidably arranged on the upper ends of the beams (1) to be installed; The two steel box beams (5) to be installed are respectively detachably mounted on the front side walls of the vertical plates of the two T-shaped bars (4); A horizontal plate of the same L-shaped plate (12) is fixedly provided on the front walls of the two outer support barrels (15) away from the vertical mounting plate (9); The front walls of the two steel box beams (5) to be installed are respectively in detachable contact with the rear walls of the vertical plates of the L-shaped plate (12).

4. The steel box girder precise positioning installation structure according to claim 3 is characterized by: The rear wall of the vertical plate of the L-shaped plate (12) is detachably provided with a limiting shaft (13) on both sides; A first limiting hole (501) that cooperates with the limiting shaft (13) is provided on the front wall of each of the steel box beams (5) to be installed; The two limiting shafts (13) are respectively detachably and slidably arranged to penetrate the plurality of first limiting holes.

5. The steel box girder precise positioning installation structure according to claim 4 is characterized by: One end of the two limiting shafts (13) of the vertical plate of the L-shaped plate (12) respectively passes through the vertical plate of the L-shaped plate (12) and is detachably provided with a chuck (1301); The two chucks (1301) are detachably arranged on both sides of the outer wall of the vertical plate of the L-shaped plate (12).

6. The steel box girder precise positioning installation structure according to claim 1 is characterized by: Rectangular columns (8) are respectively provided on the left and right side walls of the housing (10); The lower ends of the two rectangular columns (8) are respectively provided with T-shaped sliding grooves (801), and a horizontal plate provided with a T-shaped sliding block (21) is respectively slidably arranged in the two T-shaped sliding grooves (801); The lower ends of the vertical plates of the two T-shaped sliders (21) are respectively provided with hook lines; The lower ends of the two hook lines are respectively fixed with hooks, and the two hooks are respectively detachably connected to the two steel box girders to be installed; The rear side walls of the transverse plates of the two T-shaped sliding blocks (21) are movably connected to the side walls of the two T-shaped sliding grooves (801) via hydraulic rods.

7. The steel box girder precise positioning installation structure according to claim 1 is characterized by: A cavity (1001) is provided on the rear wall of the housing (10), a ladder (22) is provided at the lower end of the cavity (1001), and the ladder (22) is provided on the rear wall of the vertical mounting plate (9).

8. The steel box girder precise positioning installation structure according to claim 1 is characterized by: Two retractable rollers (23) are respectively provided on both sides of the vertical plate of the U-shaped bottom plate (6).

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