Steel box girder pushing construction guiding and rectifying control device

Abstract

The utility model discloses a steel box girder incremental launching construction guiding deviation rectification control device, specifically relates to steel box girder installation construction technical field, including mounting bracket and storage rack, and storage rack is located the top of mounting bracket, is provided with rectification subassembly on storage rack, and rectification subassembly includes two side frames, a plurality of first jacks, a plurality of connecting plates, a plurality of second gaskets, two laser transmitters and two laser receivers, and the side of two side frames opposite is fixedly connected with storage rack, and the both ends of a plurality of first jacks are fixedly connected with two side frames and a plurality of connecting plates respectively. The utility model discloses through the piston rod elongation of two first jacks and drives two connecting plates and two second gaskets horizontal movement, and the one side of steel box girder is limited, and laser transmitter works and sends out laser, when laser receiver does not receive laser, starts the first jack of corresponding position, and rectifies the deviation of steel box girder, and simple operation, whether steel box girder is convenient and real -time detection and shifts.

Description

Technical Field

[0001] This utility model relates to the field of steel box girder installation and construction technology, and more specifically, to a steel box girder jacking construction guidance and correction control device. Background Technology

[0002] Steel box girder jacking construction is a bridge construction method in which prefabricated steel box girder segments are gradually pushed forward on temporary supports until they are finally in place. Its core principle is: first, a prefabrication area is set up on one side of the bridge site, and steel box girders are welded or assembled segment by segment. Then, using jacks and other equipment, the completed girder segments are pushed forward longitudinally (in the direction of the bridge axis), while new segments are spliced ​​at the rear, and the jacking process is repeated until the entire steel box girder reaches the design position.

[0003] A search revealed that Chinese patent CN221740968U discloses a limiting mechanism for the jacking construction of a steel box girder. The mechanism includes a steel box girder, a temporary pier structure for supporting the steel box girder, an outer limiting device for the outer side of the box girder, and a bottom plate limiting device for the box girder between the bottom plate of the steel box girder and the temporary pier structure. This design reduces the impact of site conditions and natural factors on the jacking construction of the steel box girder, broadens the construction method for controlling the alignment of the jacking lines, and is highly practical, precise, safe, and efficient.

[0004] When the above-mentioned construction device is used, the steel box girder is finely adjusted by hydraulic jacks. However, it is inconvenient to detect whether the steel box girder is offset in real time. During the jacking process, the offset of the girder will continuously change dynamically with the jacking force, foundation settlement and other factors. This makes it difficult for operators to accurately grasp the timing and range of adjustment. If the offset exceeds the preset range and is not detected in time, it will affect the installation accuracy of the steel box girder. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a steel box girder jacking construction guidance and correction control device, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steel box girder jacking construction guidance and correction control device, including an installation frame and a shelf, with the shelf located on top of the installation frame. A correction component is installed on the shelf, comprising two side frames, multiple first jacks, multiple connecting plates, multiple second pads, two laser emitters, and two laser receivers. The two side frames are fixedly connected to the shelf on opposite sides. The two ends of the multiple first jacks are fixedly connected to the two side frames and the multiple connecting plates, respectively. The other side of the multiple connecting plates is fixedly connected to the multiple second pads, and the two laser emitters are fixedly installed on the tops of two of the connecting plates, and the two laser receivers are fixedly installed on the tops of the other two connecting plates.

[0007] Furthermore, a first pad is fixedly connected to the bottom of the inner part of the shelf, wherein the first pad serves to buffer the steel box girder.

[0008] Furthermore, fixing plates are fixedly connected to the bottom edges of both sides of the mounting frame, wherein the fixing plates serve to facilitate the fixing of the mounting frame.

[0009] Furthermore, an adjustment assembly is provided between the mounting frame and the shelf, the adjustment assembly including two second jacks, a T-shaped support plate, two third jacks, multiple pulleys, two sliding rods and two sliding plates.

[0010] Furthermore, the two ends of the two second jacks are respectively fixedly connected to the mounting frame and the T-shaped support plate, and the top and bottom ends of the two third jacks are respectively fixedly connected to the shelf and the T-shaped support plate.

[0011] Furthermore, the top ends of the multiple pulleys are fixedly connected to the T-shaped support plate, and a horizontal plate is movably provided on the outer side of the T-shaped support plate. The horizontal plate is fixedly installed inside the mounting frame, and the bottom ends of the multiple pulleys are in contact with the horizontal plate.

[0012] As can be seen, in the above technical solution, the T-shaped support plate drives four pulleys to slide on the horizontal plate, thereby improving the stability of the shelf.

[0013] Furthermore, one end of each of the two slide rods is fixedly connected to the mounting frame, and the opposite sides of each of the two slide plates pass through the mounting frame and are fixedly connected to the T-shaped support plate. The two slide plates are movably mounted on the two slide rods, and the bottom of each of the two slide plates is provided with a scale, and the opposite sides of the two scales are fixedly connected to the mounting frame.

[0014] As can be seen, in the above technical solution, the distance of horizontal movement of the steel box girder can be observed by using a sliding plate and a ruler.

[0015] The technical effects and advantages of this utility model are as follows: 1. This utility model uses the extension of piston rods on two first jacks to drive two connecting plates and two second shims to move horizontally. The two connecting plates and two second shims limit one side of the steel box girder. The laser emitter works to emit laser. When the laser receiver cannot receive the laser, the first jack at the corresponding position is activated to correct the steel box girder. The operation is simple and convenient for real-time detection of whether the steel box girder is deviated. 2. This utility model uses the extension of piston rods on two third jacks to move the shelf upwards and support the steel box beam. The extension of piston rods on two second jacks moves the shelf and the steel box beam horizontally. At the same time, the T-shaped support plate drives two sliding plates to slide on two sliding rods respectively, guiding the T-shaped support plate. The structure is simple and easy to use. Attached Figure Description

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a bottom view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the mounting bracket and horizontal plate assembly structure of this utility model; Figure 4 This is a schematic diagram of the correction component structure of this utility model; Figure 5 This is a schematic diagram of the adjustment component structure of this utility model.

[0018] In the diagram: 1. Mounting frame; 2. Shelf; 3. Correction assembly; 4. First shim; 5. Adjustment assembly; 6. Scale; 7. Horizontal plate; 8. Fixing plate; 301. Side frame; 302. First jack; 303. Connecting plate; 304. Second shim; 305. Laser emitter; 306. Laser receiver; 501. Second jack; 502. T-shaped support plate; 503. Third jack; 504. Pulley; 505. Sliding rod; 506. Slide plate. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Refer to the instruction manual appendix Figure 1-3 The steel box girder jacking construction guidance and correction control device of this embodiment includes a mounting frame 1 and a shelf 2, with the shelf 2 located on top of the mounting frame 1. A correction component 3 is provided on the shelf 2. The correction component 3 includes two side frames 301, multiple first jacks 302, multiple connecting plates 303, multiple second pads 304, two laser emitters 305, and two laser receivers 306. The two sides of the two side frames 301 facing each other are fixedly connected to the shelf 2. The two ends of the multiple first jacks 302 are fixedly connected to the two side frames 301 and the multiple connecting plates 303, respectively. The other side of the multiple connecting plates 303 is fixedly connected to the multiple second pads 304, respectively. The two laser emitters 305 are fixedly installed on the top of two of the connecting plates 303, and the two laser receivers 306 are fixedly installed on the top of the other two connecting plates 303.

[0021] Furthermore, a first pad 4 is fixedly connected to the bottom of the inner side of the shelf 2. The first pad 4 serves to buffer the steel box beam. Fixing plates 8 are fixedly connected to the bottom edges on both sides of the mounting frame 1. The fixing plates 8 serve to facilitate the fixing of the mounting frame 1.

[0022] Furthermore, an adjustment assembly 5 is provided between the mounting frame 1 and the shelf 2. The adjustment assembly 5 includes two second jacks 501, a T-shaped support plate 502, two third jacks 503, multiple pulleys 504, two sliding rods 505, and two sliding plates 506. The two ends of the two second jacks 501 are fixedly connected to the mounting frame 1 and the T-shaped support plate 502, respectively. The top and bottom ends of the two third jacks 503 are fixedly connected to the shelf 2 and the T-shaped support plate 502, respectively. The tops of the multiple pulleys 504 are all fixed to the T-shaped support plate 502. The T-shaped support plate 502 is connected to a horizontal plate 7 which is movably installed on the outside. The horizontal plate 7 is fixedly installed inside the mounting frame 1, and the bottom ends of multiple pulleys 504 are in contact with the horizontal plate 7. One end of each of the two sliding rods 505 is fixedly connected to the mounting frame 1. The opposite sides of the two sliding plates 506 pass through the mounting frame 1 and are fixedly connected to the T-shaped support plate 502. The two sliding plates 506 are movably fitted onto the two sliding rods 505 respectively. The bottom of each of the two sliding plates 506 is provided with a scale 6, and the opposite sides of the two scales 6 are fixedly connected to the mounting frame 1.

[0023] When the steel box girder is at the top of the shelf 2, two third jacks 503 are activated simultaneously. The piston rods on the two third jacks 503 extend, causing the shelf 2 to move upward and supporting the steel box girder. Then, the shelf 2 is connected to the steel box girder through the correction component 3. Simultaneously, two second jacks 501 are activated. The piston rods on the two second jacks 501 extend, causing the T-shaped support plate 502 and the two third jacks 503 to move horizontally, thereby causing the shelf 2 and the steel box girder to move horizontally. At the same time, the T-shaped support plate 502 drives two sliding plates 506 to slide on two sliding rods 505 respectively, guiding the T-shaped support plate 502. The distance of horizontal movement of the steel box girder can be observed by the cooperation of the sliding plates 506 and the scale 6. The structure is simple and easy to use. At the same time, the T-shaped support plate 502 drives four pulleys 504 to slide on the horizontal plate 7, thereby improving the stability of the shelf 2.

[0024] The usage method of this embodiment is as follows: During use, the workers install two fixing plates 8 on the temporary pier with bolts, thereby fixing the mounting frame 1 to the temporary pier. When the steel box girder is inside the shelf 2, the top of the first shim 4 contacts the steel box girder to avoid the beam directly contacting the shelf 2 rigidly and causing wear. Simultaneously, the two first jacks 302 in one of the side frames 301 are activated. The piston rods on the two first jacks 302 extend and drive the two connecting plates 303 and the two second shims 304 to move horizontally. The two connecting plates 303 and the two second shims 304 limit one side of the steel box girder. Similarly, the other two connecting plates 303 and the other two second shims 304 limit the other side of the steel box girder. The laser transmitter 305 is activated, emitting a laser beam. The laser receiver 306 receives the laser beam emitted by the laser transmitter 305. When the laser receiver 306 fails to receive the laser beam, the first jack 302 at the corresponding position is activated to correct the deviation of the steel box girder. The operation is simple and convenient for real-time detection of whether the steel box girder is deviated. It is worth noting that the laser emitted by the laser transmitter 305 is parallel to the axis of the steel box girder, and the laser receiver 306 precisely corresponds to the laser path. When the steel box girder is in the designed position, the laser beam can be captured by the receiver without obstruction. If the beam is laterally deviated, the side will block the laser beam, causing the laser receiver 306 to be unable to receive the signal.

[0025] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0026] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A guiding and rectifying control device for steel box girder incremental launching construction, comprising a mounting frame (1) and a storage rack (2), and the storage rack (2) is located at the top of the mounting frame (1), characterized in that: The shelf (2) is provided with a correction component (3), which includes two side frames (301), multiple first jacks (302), multiple connecting plates (303), multiple second pads (304), two laser emitters (305) and two laser receivers (306). The two side frames (301) are fixedly connected to the shelf (2) on opposite sides. The two ends of the multiple first jacks (302) are fixedly connected to the two side frames (301) and the multiple connecting plates (303) respectively. The other side of the multiple connecting plates (303) is fixedly connected to the multiple second pads (304) respectively. The two laser emitters (305) are fixedly installed on the top of two of the connecting plates (303) respectively. The two laser receivers (306) are fixedly installed on the top of the other two connecting plates (303) respectively.

2. The steel box girder incremental launching construction guiding and deviation rectifying control device according to claim 1, characterized in that: The bottom of the shelf (2) is fixedly connected to a first pad (4), which serves to buffer the steel box girder.

3. The steel box girder incremental launching construction guiding and deviation rectifying control device according to claim 1, characterized in that: Fixing plates (8) are fixedly connected to the bottom edges of both sides of the mounting bracket (1), wherein the fixing plates (8) serve to facilitate the fixing of the mounting bracket (1).

4. The steel box girder incremental launching guidance rectification control device according to claim 1, characterized in that: An adjustment assembly (5) is provided between the mounting frame (1) and the shelf (2). The adjustment assembly (5) includes two second jacks (501), a T-shaped support plate (502), two third jacks (503), multiple pulleys (504), two sliding rods (505), and two sliding plates (506).

5. The steel box girder incremental launching construction guiding and deviation rectifying control device according to claim 4, characterized in that: The two ends of the two second jacks (501) are fixedly connected to the mounting frame (1) and the T-shaped support plate (502) respectively, and the top and bottom ends of the two third jacks (503) are fixedly connected to the shelf (2) and the T-shaped support plate (502) respectively.

6. The steel box girder incremental launching construction guiding and deviation rectifying control device according to claim 4, characterized in that: The top ends of the multiple pulleys (504) are fixedly connected to the T-shaped support plate (502). A horizontal plate (7) is movably provided on the outer side of the T-shaped support plate (502). The horizontal plate (7) is fixedly installed inside the mounting frame (1), and the bottom ends of the multiple pulleys (504) are in contact with the horizontal plate (7).

7. The steel box girder incremental launching construction guiding and deviation rectifying control device according to claim 4, characterized in that: One end of each of the two slide rods (505) is fixedly connected to the mounting frame (1). The opposite sides of the two slide plates (506) pass through the mounting frame (1) and are fixedly connected to the T-shaped support plate (502). The two slide plates (506) are respectively movably sleeved on the two slide rods (505). The bottom of each of the two slide plates (506) is provided with a scale (6), and the opposite sides of the two scales (6) are fixedly connected to the mounting frame (1).

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