Quick centering and positioning device for precast beam installation

Abstract

The utility model relates to the technical field of bridge construction auxiliary devices, in particular to a precast beam installation rapid centering and positioning device which comprises a cover beam, a support assembly, a precast beam and a positioning box. The multiple support assemblies are fixedly arranged on the top wall of the cover beam, the multiple wedge-shaped steel plates are fixedly arranged on the bottom wall of the precast beam, the wedge-shaped steel plates abut against the tops of the support assemblies, and the side walls of the support assemblies and the side walls of the wedge-shaped steel plates are sleeved with the positioning box bodies. According to the quick centering and positioning device for precast beam installation, when a precast beam is installed, a positioning box body is arranged on the side wall of a support assembly in a sleeving mode, the position angle of the precast beam is adjusted, a wedge-shaped steel plate on the precast beam slides into the positioning box body, the positioning box body limits the wedge-shaped steel plate, and therefore it is guaranteed that the wedge-shaped steel plate corresponds to the support assembly in position; and it is avoided that when the precast beam is installed, the precast beam and a manufacturing assembly are staggered, and the installation quality of the precast beam is affected.

Description

Technical Field

[0001] This application relates to the technical field of bridge construction auxiliary devices, and particularly relates to a rapid centering and positioning device for precast beam installation. Background Art

[0002] In bridge construction, the installation of precast beams is an important link. In traditional installation methods, the centering of the positions of precast beams and bearings mainly relies on the experience and visual judgment of construction workers. This method is not only inefficient but also prone to inaccurate positioning, resulting in deviations between precast beams and bearings, thereby affecting the overall quality and safety of the bridge. In response to this problem, although some positioning devices have been proposed, they often have complex structures, inconvenient operations, or low positioning accuracies, and are difficult to meet the requirements of modern high-efficiency and precise construction. Therefore, there is an urgent need for a centering and positioning device for precast beam installation that is simple in structure, convenient to operate, and accurate in positioning. Summary of the Utility Model

[0003] In order to improve the installation quality of precast beams, this application provides a rapid centering and positioning device for precast beam installation.

[0004] The rapid centering and positioning device for precast beam installation provided by this application adopts the following technical solutions:

[0005] A rapid centering and positioning device for precast beam installation includes a capping beam, a bearing assembly, a precast beam, and a positioning box body; a plurality of the bearing assemblies are fixedly arranged on the top wall of the capping beam, a plurality of wedge-shaped steel plates are fixedly arranged on the bottom wall of the precast beam, the wedge-shaped steel plates are in contact with the tops of the bearing assemblies, and the positioning box body is sleeved on the side walls of the bearing assemblies and the wedge-shaped steel plates.

[0006] By adopting the above technical solutions, when constructing a bridge, it is necessary to erect the precast beam on the bearing of the capping beam, and the positions of the wedge-shaped steel plates and the bearing assemblies need to be centered; the positioning box body is sleeved on the side wall of the bearing assembly. During hoisting, the position and angle of the precast beam are adjusted so that the wedge-shaped steel plates on the precast beam slide into the positioning box body, and the positioning box body limits the wedge-shaped steel plates, thereby ensuring the corresponding positions of the wedge-shaped steel plates and the bearing assemblies, and avoiding misalignment between the precast beam and the fabrication assembly during the installation of the precast beam, which affects the installation quality of the precast beam.

[0007] In a specific feasible implementation, a plurality of bearing pads are arranged on the capping beam, and the bearing assemblies are fixedly arranged on the bearing pads.

[0008] By adopting the above technical solutions, the provided bearing pads provide an installation foundation for the bearing assemblies, which is convenient for improving the installation stability of the bearing assemblies, and thus convenient for realizing the stable placement of the precast beam on the fabrication assembly.

[0009] In a specific feasible implementation, the support assembly includes a lower steel plate of the support, a rubber seat, and an upper steel plate of the support. The rubber seat is arranged between the upper steel plate of the support and the lower steel plate of the support. The lower steel plate of the support is bolted to the cushion stone, and the circumferential side walls of the upper steel plate of the support and the lower steel plate of the support are flush with the circumferential side wall of the cushion stone.

[0010] The wedge-shaped steel plate is in close contact with the top wall of the upper steel plate of the support, and the circumferential side wall of the wedge-shaped steel plate is flush with the circumferential side wall of the upper steel plate of the support.

[0011] By adopting the above technical solution, the wedge-shaped steel plate is in close contact with the upper steel plate of the support, ensuring the stable installation of the precast beam. The circumferential side wall of the wedge-shaped steel plate is flush with the axial side wall of the support assembly, thus ensuring the position correspondence between the wedge-shaped steel plate and the support, and further ensuring the centering of the position of the precast beam.

[0012] In a specific feasible implementation, the positioning box body includes a fixing part and a limiting and adjusting plate. The fixing part includes a first connecting plate, a fixing plate, and a second connecting plate. The first connecting plate and the second connecting plate are symmetrically arranged at both ends of the fixing plate in the length direction. The two ends of the limiting and adjusting plate in the length direction are respectively connected to the ends of the first connecting plate and the second connecting plate away from the fixing plate.

[0013] A limiting cavity is arranged between the fixing part and the limiting and adjusting plate. The cushion stone, the lower steel plate of the support, the rubber seat, the upper steel plate of the support, and the wedge-shaped steel plate are all embedded in the limiting cavity, and the inner wall contour of the limiting cavity fits with the outer circumferential contour of the wedge-shaped steel plate of the support.

[0014] By adopting the above technical solution, the provided positioning box body, when installing the precast beam, the cushion stone, the lower steel plate of the support, and the upper steel plate of the support limit the positioning box body to prevent the positioning box body from moving in position. At the same time, embedding the wedge-shaped steel plate into the limiting cavity facilitates the centering of the position of the precast beam, thereby ensuring the installation accuracy of the precast beam.

[0015] In a specific feasible implementation, a movable hinge is arranged between the first connecting plate and the limiting and adjusting plate, and the limiting and adjusting plate can rotate around the first connecting plate through the movable hinge.

[0016] A first pin hinge is arranged at the end of the second connecting plate away from the fixing plate, and a first locking ring is arranged on the first pin hinge; a second pin hinge is arranged at the end of the limiting and adjusting plate away from the first connecting plate, and a second locking ring is arranged on the second pin hinge. The projections of the first locking ring and the second locking ring in the axial direction coincide, and a limiting pin is penetrated through the first locking ring and the second locking ring.

[0017] By adopting the above technical solution, after the precast beam is installed, the limit pin is pulled out from the first locking ring and the second locking ring, so that the limit adjusting plate is separated from the second connecting plate, and then the limit adjusting plate is adjusted to rotate the limit adjusting plate around the first connecting plate, thereby realizing the opening of the limit cavity, facilitating the removal of the positioning box body from the support assembly, and thus improving the reuse rate of the positioning box body.

[0018] In a specific feasible embodiment, chamfers are provided at the tops of the fixed plate, the first connecting plate, the second connecting plate and the limit adjusting plate.

[0019] By adopting the above technical solution, the provided chamfers facilitate the insertion of the wedge-shaped steel plate into the limit cavity through the chamfers when installing the precast beam, improving the installation convenience of the precast beam.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. The provided quick centering and positioning device for precast beam installation, when installing the precast beam, sleuth the positioning box body on the side wall of the support assembly, adjust the position and angle of the precast beam, so that the wedge-shaped steel plate on the precast beam slides into the positioning box body, and the positioning box body limits the wedge-shaped steel plate, thereby ensuring the corresponding position of the wedge-shaped steel plate and the support assembly, and avoiding the dislocation between the precast beam and the production assembly during the installation of the precast beam, which affects the installation quality of the precast beam. Description of the Drawings

[0022] Figure 1 is the overall structural schematic diagram of a quick centering and positioning device for precast beam installation in an embodiment.

[0023] Figure 2 is the capping beam schematic diagram of a quick centering and positioning device for precast beam installation in an embodiment.

[0024] Figure 3 is Figure 2 the enlarged view of part A of

[0025] Figure 4 is the schematic diagram of the precast beam and the wedge-shaped steel plate of a quick centering and positioning device for precast beam installation in an embodiment.

[0026] Figure 5 is the cross-sectional view of a quick centering and positioning device for precast beam installation in an embodiment.

[0027] Figure 6 is the structural schematic diagram of the positioning box body of a quick centering and positioning device for precast beam installation in an embodiment.

[0028] Description of the drawings: 1. Capping beam; 11. Bearing pad stone; 2. Bearing assembly; 21. Upper steel plate of the bearing; 22. Rubber seat; 23. Lower steel plate of the bearing; 3. Prefabricated beam; 31. Wedge-shaped steel plate; 4. Positioning box; 41. Fixed part; 411. First connecting plate; 412. Fixed plate; 413. Second connecting plate; 42. Limit adjusting plate; 43. Limit cavity; 44. Movable hinge; 45. First pin hinge; 451. First locking ring; 46. Second pin hinge; 461. Second locking ring; 47. Limit pin; 48. Groove. Detailed implementation manners

[0029] The following further describes the present application in detail in conjunction with the attached Figures 1-6 drawings.

[0030] The embodiment of the present application discloses a rapid centering and positioning device for prefabricated beam installation.

[0031] Referring to Figures 1-3 , a rapid centering and positioning device for prefabricated beam installation includes a capping beam 1, a bearing assembly 2, and a prefabricated beam 3; a plurality of bearing pad stones 11 are fixedly arranged on the top wall of the capping beam 1, and the plurality of bearing pad stones 11 are evenly distributed along the length direction of the top wall of the capping beam 1; the bearing assembly 2 is fixedly installed on the bearing pad stone 11, and the prefabricated beam 3 is erected on the plurality of bearing assemblies 2; the bearing assembly 2 includes a lower steel plate 23 of the bearing, a rubber seat, and an upper steel plate 21 of the bearing. The rubber seat 22 is arranged between the upper steel plate 21 of the bearing and the lower steel plate 23 of the bearing. The lower steel plate 23 of the bearing is bolted to the bearing pad stone 11, and the vertical projections of the bearing pad stone 11, the upper steel plate 21 of the bearing, and the lower steel plate 23 of the bearing coincide.

[0032] Referring to Figure 4 and Figure 5 , a plurality of wedge-shaped steel plates 31 are arranged on the bottom wall of the prefabricated beam 3, and the positions of the wedge-shaped steel plates 31 correspond to the upper steel plates 21 of the bearings; a positioning box 4 is sleeved on the circumferential side walls of the bearing pad stone 11, the bearing assembly 2, and the wedge-shaped steel plate 31. The positioning box 4 is arranged as a hollow structure that is vertically penetrated. A limit cavity 43 is opened in the middle of the positioning box 4. The bearing pad stone 11 and the bearing assembly 2 are located in the limit cavity 43, and the bearing pad stone 11, the upper steel plate 21 of the bearing, and the lower steel plate 23 of the bearing are all in contact with the side wall of the limit cavity 43; the wedge-shaped steel plate 31 is embedded in the limit cavity 43, and the wedge-shaped steel plate 31 is in close contact with the top wall of the upper steel plate 21 of the bearing, and the vertical projections of the wedge-shaped steel plate 31 and the upper steel plate 21 of the bearing coincide.

[0033] Referring to Figure 6The positioning box 4 includes a fixing portion 41 and a limit adjustment plate 42. The fixing portion 41 includes a first connecting plate 411, a fixing plate 412 and a second connecting plate 413. The first connecting plate 411 and the second connecting plate 413 are symmetrically arranged at both ends of the fixing plate 412 in the length direction. The two ends of the limit adjustment plate 42 in the length direction are respectively connected to the first connecting plate 411 and the second connecting plate 413 away from the fixing plate 412; the limit cavity 43 is located between the fixing portion 41 and the limit adjustment plate 42; a movable hinge 44 is arranged between the first connecting plate 411 and the limit adjustment plate 42, and the limit adjustment plate 42 can be moved around the first connecting plate 411 rotates; a first latch hinge 45 is provided at one end of the second connecting plate 413 away from the fixed plate 412, and a first locking ring 451 is provided on the first latch hinge 45; a second latch hinge 46 is provided at one end of the limit adjustment plate 42 away from the first connecting plate 411, and a second locking ring 461 is provided on the second latch hinge 46, the projections of the first locking ring 451 and the second locking ring 461 in the axial direction coincide with each other, and a limiting pin 47 is penetrated through the first locking ring 451 and the second locking ring 461; a groove 48 is provided on the top of the fixed plate 412, the first connecting plate 411, the second connecting plate 413 and the limit adjustment plate 42.

[0034] The implementation principle of the quick centering and positioning device for the installation of precast beams in the embodiment of the present application is as follows: when installing the precast beam 3, firstly, a cushion stone 11 is set on the top wall of the cap beam 1, and the support assembly 2 is installed on the cushion stone 11, and the support lower steel plate 23 is bolted to the cushion stone 11 to ensure that the position of the support assembly 2 is fixed. At the same time, it is ensured that the position of the support lower steel plate 23 corresponds to that of the cushion stone 11, and the support lower steel plate 23 is flush with the circumferential side wall of the cushion stone 11; then, a rubber seat 22 is installed on the support lower steel plate 23, and a support upper steel plate 21 is installed on the rubber seat 22, and the vertical projection of the support upper steel plate 21 coincides with that of the support lower steel plate 23; then, the positioning box is fixed. 4 is set on the support assembly 2 and the cushion stone 11, and the side walls of the cushion stone 11, the support lower steel plate 23 and the support upper steel plate 21 are tightly fitted with the side walls of the limiting cavity 43 to ensure that the position of the positioning box 4 is fixed; finally, the precast beam 3 is lifted by the lifting equipment, the wedge-shaped steel plate 31 is aligned with the limiting cavity 43, and the precast beam 3 is slowly lowered so that the wedge-shaped steel plate 31 slides into the limiting cavity 43 through the groove 48 and is tightly abutted with the support upper steel plate 21; under the limiting action of the limiting cavity 43, the wedge-shaped steel plate 31 is ensured to be aligned with the support upper steel plate 21, thereby avoiding the position movement of the precast beam 3 during installation and ensuring the installation accuracy of the precast beam 3.

[0035] After the installation of the precast beam 3 is completed, the limit pin 47 is pulled out from the first locking ring 451 and the second locking ring 461, so that the limit adjusting plate 42 is disengaged from the second connecting plate 413. Then, the limit adjusting plate 42 is adjusted so that the limit adjusting plate 42 rotates around the first connecting plate 411 through the movable hinge 44, thereby realizing the opening of the limit cavity 43. The positioning box body 4 is taken out from the support assembly 2, and the positioning box body 4 can be reused during the installation of the next precast beam 3.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A quick centering and positioning device for prefabricated beam installation, characterized in that: It comprises a cap beam (1), a support assembly (2), a prefabricated beam (3) and a positioning box (4); a plurality of the support assemblies (2) are fixedly arranged on the top wall of the cap beam (1); a plurality of wedge-shaped steel plates (31) are fixedly arranged on the bottom wall of the prefabricated beam (3); the wedge-shaped steel plates (31) are abutted against the top of the support assembly (2); and the positioning box (4) is sleeved on the side walls of the support assembly (2) and the wedge-shaped steel plates (31).

2. The device for rapid centering and positioning of prefabricated beams according to claim 1, characterized in that: A plurality of cushion stones (11) are arranged on the cap beam (1), and the support assembly (2) is fixedly arranged on the cushion stones (11).

3. The device for rapid centering and positioning of prefabricated beams according to claim 2, characterized in that: The support assembly (2) comprises a support lower steel plate (23), a rubber seat (22) and a support upper steel plate (21), wherein the rubber seat (22) is arranged between the support upper steel plate (21) and the support lower steel plate (23), the support lower steel plate (23) is bolted to the cushion stone (11), and the circumferential side walls of the support upper steel plate (21) and the support lower steel plate (23) are flush with the circumferential side walls of the cushion stone (11); The wedge-shaped steel plate (31) is tightly fitted with the top wall of the support upper steel plate (21), and the circumferential side wall of the wedge-shaped steel plate (31) is flush with the circumferential side wall of the support upper steel plate (21).

4. The device for rapid centering and positioning of prefabricated beams according to claim 3, characterized in that: The positioning box (4) comprises a fixing portion (41) and a limit adjustment plate (42); the fixing portion (41) comprises a first connecting plate (411), a fixing plate (412) and a second connecting plate (413); the first connecting plate (411) and the second connecting plate (413) are symmetrically arranged at two ends of the fixing plate (412) in a length direction; and the two ends of the limit adjustment plate (42) in a length direction are respectively connected to one end of the first connecting plate (411) and the second connecting plate (413) away from the fixing plate (412); A limit cavity (43) is provided between the fixing portion (41) and the limit adjustment plate (42); the cushion stone (11), the support lower steel plate (23), the rubber seat (22), the support upper steel plate (21) and the wedge-shaped steel plate (31) are all embedded in the limit cavity (43); and the inner wall profile of the limit cavity (43) is matched with the circumferential outer wall profile of the support wedge-shaped steel plate (31).

5. The device for rapid centering and positioning of prefabricated beams according to claim 4, characterized in that: A movable hinge (44) is provided between the first connecting plate (411) and the limit adjustment plate (42), and the limit adjustment plate (42) can rotate around the first connecting plate (411) through the movable hinge (44); A first latch hinge (45) is provided at one end of the second connecting plate (413) away from the fixed plate (412), and a first locking ring (451) is provided on the first latch hinge (45); a second latch hinge (46) is provided at one end of the limit adjustment plate (42) away from the first connecting plate (411), and a second locking ring (461) is provided on the second latch hinge (46), the projections of the first locking ring (451) and the second locking ring (461) in the axial direction coincide with each other, and limit pins (47) are provided through the first locking ring (451) and the second locking ring (461).

6. The device for rapid centering and positioning of prefabricated beams according to claim 4, characterized in that: The tops of the fixing plate (412), the first connecting plate (411), the second connecting plate (413) and the limit adjustment plate (42) are all provided with grooves (48).

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