Splicing support for rapid construction of box girder

Abstract

The utility model relates to a splicing bracket for rapid construction of a box girder, which belongs to the technical field of box girder construction and comprises a mounting base, a rotating shaft arranged at one end of the mounting base in a penetrating manner, a supporting base rotationally mounted at two ends of the rotating shaft, and an upper reinforcing component and a lower reinforcing component which are arranged between the mounting base and the supporting base, mounting screw holes are formed in the two side faces of the mounting base. According to the splicing support for rapid construction of the box girder, an upper reinforcing assembly and a lower reinforcing assembly are arranged between the mounting base and the supporting base, the bottom ends of an upper reinforcing plate and a lower reinforcing plate are bolted to one side of the mounting base through an upper fixing bolt and a lower fixing bolt, and the supporting base is reinforced and supported; the supporting stability of the supporting base is improved, and the problems that the bottom of the supporting rod is installed on the surface of the lead screw through threads, and when the threads between the lead screw and the sliding block are abraded in the long-time using process, the supporting effect is reduced, and the phenomenon of unstable supporting is likely to occur are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of box girder construction, in particular to a splicing bracket used for rapid construction of box girders. Background Art

[0002] Box girder is a type of beam in bridge engineering. It is hollow inside and has flanges on both sides of the upper part, similar to a box, hence the name. The box girder is mainly composed of a top plate, a bottom plate, two side wall panels and a partition, and each panel is composed of some steel bars and concrete. It can withstand higher loads and larger spans, and is lighter than traditional beams. It is often used in the construction of highways and railway bridges. The box girder of reinforced concrete structure is divided into prefabricated box girder and cast-in-place box girder. The box girder prefabricated in an independent site can be erected in combination with a bridge erection machine after the lower project is completed, which can speed up the progress of the project and save construction time; cast-in-place box girders are mostly used for large continuous bridges.

[0003] Existing cast-in-place box girders need to calculate the horizontal component of the self-weight of the beam based on the beam height and the web inclination angle to determine the number and density of the brackets. Often, there are a large number of brackets and the layout work is large. The brackets spliced ​​on site are usually installed on both sides of the box girder, affecting the overall stability of the frame.

[0004] Chinese patent CN217781736U discloses a splicing bracket for rapid construction of box girders of bridges. The new type of bracket is provided with a positioning mechanism, and the handle is turned to drive the screw to rotate, thereby changing the position of the slider on the screw. By changing the position of the slider, the angle between the support plate and the base can be changed. In this way, the bracket can be quickly erected, saving the time of bracket assembly, making it easy to use and shortening the construction process.

[0005] However, the support plate in this structure is supported only by the support rod below it, and the bottom of the support rod is installed on the surface of the screw rod through a thread. When the thread between the screw rod and the slider is worn during long-term use, the supporting effect is reduced and the support is easily unstable. In view of this, the present application proposes a splicing bracket for rapid construction of box girders. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a splicing bracket for rapid construction of box girders, which has the advantages of multi-point support and increased support stability. It solves the problem that the bottom of the support rod is installed on the surface of the screw rod through threads, and when the threads between the screw rod and the slider wear during long-term use, the support effect is reduced, and unstable support is likely to occur.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a splicing bracket for rapid construction of box beams, comprising a mounting base, a rotating shaft passing through one end of the mounting base, a supporting base rotatably mounted at both ends of the rotating shaft, and an upper reinforcing assembly and a lower reinforcing assembly arranged between the mounting base and the supporting base, wherein both sides of the mounting base are provided with mounting screw holes;

[0008] The upper reinforcement assembly includes two upper support ear plates fixedly mounted on the support base close to the mounting base, an upper reinforcement plate rotatably mounted on one side of the upper support ear plate, and an upper fixing bolt passing through one side of the upper reinforcement plate, wherein the upper fixing bolt is threadedly connected to the mounting base through a mounting screw hole;

[0009] The lower reinforcement assembly includes two lower support ear plates fixedly mounted on the support base close to the mounting base, a lower reinforcement plate rotatably mounted on one side of the lower support ear plate, and a lower fixing bolt passing through one side of the lower reinforcement plate, wherein the lower fixing bolt is threadedly connected to the mounting base through a mounting screw hole.

[0010] The present application adopts the above-mentioned technical solution to set an upper reinforcement assembly and a lower reinforcement assembly between the mounting base and the support base, and bolts the bottom ends of the upper reinforcement plate and the lower reinforcement plate to one side of the mounting base through upper fixing bolts and lower fixing bolts, thereby reinforcing the support base and increasing the support stability of the support base.

[0011] Furthermore, a connecting groove matched with the mounting base is formed at the bottom of the supporting base, and two ends of the rotating shaft are rotatably connected to two inner side walls of the connecting groove.

[0012] The beneficial effect of adopting the above further solution is that the support base is rotated at one end of the mounting base to adjust the angle at which the support base supports the box beam.

[0013] Furthermore, a slide groove is provided on the top of the mounting base, a slide support block is slidably installed inside the slide groove, and an adjustment component for adjusting the position of the slide support block is provided inside the slide groove.

[0014] The beneficial effect of adopting the above further solution is: the position of the sliding support block inside the sliding groove is adjusted by adjusting the component.

[0015] Furthermore, the adjustment assembly includes an adjustment screw rotatably installed on the inner side wall of the slide groove and an adjustment handwheel rotatably installed on one end of the mounting base away from the support base. The adjustment screw and the sliding support block are threadedly connected, the center of the adjustment handwheel is fixedly connected to one end of the adjustment screw, an adjustment handle is rotatably installed on one side of the adjustment handwheel, and a reinforcing support nut is threadedly installed on the surface of the adjustment screw.

[0016] The beneficial effect of adopting the above further solution is: the adjusting handle drives the adjusting hand wheel to rotate, which drives the adjusting screw to rotate, so that the sliding support block slides inside the sliding groove.

[0017] Furthermore, two sliding support ear plates are fixedly installed on the top of the sliding support block, and an adjusting support rod is rotatably installed between the two sliding support ear plates.

[0018] The beneficial effect of adopting the above further solution is that the sliding support block moves, driving the bottom end of the adjusting support rod to move.

[0019] Furthermore, two fixed support ear plates are fixedly installed on one side of the support base, and the other end of the adjustable support rod is rotatably installed between the two fixed support ear plates.

[0020] The beneficial effect of adopting the above further solution is: adjusting the bottom end of the support rod to move, and adjusting the top end of the support rod to drive the support base to rotate.

[0021] Furthermore, a fixed bottom block is fixedly installed at the bottom of the mounting base, a tension screw is passed through one side of the fixed bottom block, the tension screw passes through the fixed bottom block symmetrically at the bottom of the mounting base, a locking nut is threadedly installed on the surface of the tension screw, and a mounting base plate is fixedly installed at the bottom of the fixed bottom block.

[0022] The beneficial effect of adopting the above further scheme is: placing two spliced ​​brackets on both sides of the box beam, connecting the two spliced ​​brackets by passing the tension screws through the two fixed bottom blocks, and adjusting the distance between the two spliced ​​brackets by turning the locking nuts so that the support base contacts both sides of the box beam.

[0023] Compared with the prior art, the utility model provides a splicing bracket for rapid construction of box beams, which has the following beneficial effects:

[0024] The splicing bracket for rapid construction of box girders is provided with an upper reinforcing assembly and a lower reinforcing assembly between the mounting base and the supporting base, and the bottom ends of the upper reinforcing plate and the lower reinforcing plate are bolted to one side of the mounting base by upper fixing bolts and lower fixing bolts, so as to strengthen the support of the supporting base and increase the support stability of the supporting base, and solves the problem that when the bottom of the supporting rod is installed on the surface of the screw rod by thread, the thread between the screw rod and the slider is worn during long-term use, the support effect is reduced, and the support is easily unstable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a side cross-sectional view of the installation base and the support base of the utility model;

[0027] Figure 3 This is a top view of the installation base and the support base of the utility model;

[0028] Figure 4 It is a three-dimensional schematic diagram of the installation base and the support base of the utility model.

[0029] In the figure: 1. Mounting base; 101. Mounting screw hole; 102. Slide groove; 2. Rotating shaft; 3. Support base; 31. Connecting groove; 4. Upper reinforcement assembly; 41. Upper support ear plate; 42. Upper reinforcement plate; 43. Upper fixing bolt; 5. Lower reinforcement assembly; 51. Lower support ear plate; 52. Lower reinforcement plate; 53. Lower fixing bolt; 6. Sliding support block; 7. Adjustment assembly; 71. Adjustment screw; 72. Adjustment hand wheel; 721. Adjustment handle; 8. Sliding support ear plate; 9. Adjustment support rod; 10. Fixed support ear plate; 11. Strengthening support nut; 12. Fixed bottom block; 13. Pull screw; 14. Locking nut; 15. Mounting base plate. DETAILED DESCRIPTION

[0030] 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.

[0031] See also Figure 1-3 In this embodiment, a splicing bracket for rapid construction of a box girder includes a mounting base 1, a rotating shaft 2 passing through one end of the mounting base 1, a supporting base 3 rotatably mounted at both ends of the rotating shaft 2, and an upper reinforcing component 4 and a lower reinforcing component 5 arranged between the mounting base 1 and the supporting base 3. Both sides of the mounting base 1 are provided with mounting screw holes 101.

[0032] At the same time, a connecting groove 31 adapted to the mounting base 1 is formed at the bottom of the supporting base 3 , and two ends of the rotating shaft 2 are rotatably connected to two inner side walls of the connecting groove 31 .

[0033] A slide groove 102 is provided on the top of the mounting base 1 , a slide support block 6 is slidably installed inside the slide groove 102 , and an adjustment component 7 for adjusting the position of the slide support block 6 is provided inside the slide groove 102 .

[0034] Secondly, the adjustment component 7 includes an adjustment screw 71 rotatably installed on the inner wall of the slide groove 102 and an adjustment handwheel 72 rotatably installed on the end of the mounting base 1 away from the support base 3. The adjustment screw 71 is threadedly connected to the sliding support block 6, and the center of the adjustment handwheel 72 is fixedly connected to one end of the adjustment screw 71. An adjustment handle 721 is rotatably installed on one side of the adjustment handwheel 72, and a reinforcing support nut 11 is threadedly installed on the surface of the adjustment screw 71.

[0035] By rotating the adjusting handle 721, the adjusting hand wheel 72 is driven to rotate, and the adjusting screw 71 is driven to rotate, so that the sliding support block 6 moves inside the slide groove 102. By rotating the reinforcing support nut 11, the reinforcing support nut 11 contacts one side of the sliding support block 6, thereby increasing the stability of the sliding support block 6.

[0036] At the same time, two sliding support ear plates 8 are fixedly installed on the top of the sliding support block 6, and an adjusting support rod 9 is rotatably installed between the two sliding support ear plates 8.

[0037] Among them, two fixed support ear plates 10 are fixedly installed on one side of the support base 3, and the other end of the adjustable support rod 9 is rotatably installed between the two fixed support ear plates 10. The sliding support block 6 moves, and the angle of the support base 3 is adjusted by adjusting the support rod 9, and the support base 3 is supported.

[0038] At the same time, the upper reinforcement assembly 4 includes two upper support ear plates 41 fixedly installed on the support base 3 close to the mounting base 1, an upper reinforcement plate 42 rotatably installed on one side of the upper support ear plate 41, and an upper fixing bolt 43 passing through one side of the upper reinforcement plate 42, and the upper fixing bolt 43 is threadedly connected to the mounting base 1 through the mounting screw hole 101.

[0039] The lower reinforcement assembly 5 includes two lower support ear plates 51 fixedly mounted on the side of the support base 3 close to the mounting base 1, a lower reinforcement plate 52 rotatably mounted on one side of the lower support ear plate 51, and a lower fixing bolt 53 passing through one side of the lower reinforcement plate 52, and the lower fixing bolt 53 is threadedly connected to the mounting base 1 through the mounting screw hole 101. After the angle adjustment of the support base 3 is completed, the upper reinforcement plate 42 is bolted to the mounting base 1 through the upper fixing bolt 43, and the lower reinforcement plate 52 is bolted to the mounting base 1 through the lower fixing bolt 53, so as to strengthen the support of the mounting base 1 and increase the stability of the support of the mounting base 1.

[0040] Finally, a fixed bottom block 12 is fixedly installed at the bottom of the mounting base 1, and a tension screw 13 is passed through one side of the fixed bottom block 12. The tension screw 13 passes through the fixed bottom block 12 at the bottom of the symmetrical mounting base 1, and a locking nut 14 is threadedly installed on the surface of the tension screw 13. A mounting base plate 15 is fixedly installed at the bottom of the fixed bottom block 12.

[0041] The working principle of the above embodiment is as follows: after the angle adjustment of the support base 3 is completed, the upper reinforcement component 4 and the lower reinforcement component 5 are used to reinforce the mounting base 1 to increase the stability of the mounting base 1 support.

Claims

1. A splicing bracket for rapid construction of box beams, characterized in that: The mounting base (1) comprises a mounting base (1), a rotating shaft (2) passing through one end of the mounting base (1), a supporting base (3) rotatably mounted on both ends of the rotating shaft (2), and an upper reinforcing component (4) and a lower reinforcing component (5) arranged between the mounting base (1) and the supporting base (3), wherein both side surfaces of the mounting base (1) are provided with mounting screw holes (101); The upper reinforcement assembly (4) comprises two upper support ear plates (41) fixedly mounted on a side of the support base (3) close to the mounting base (1), an upper reinforcement plate (42) rotatably mounted on one side of the upper support ear plate (41), and an upper fixing bolt (43) passing through one side of the upper reinforcement plate (42), wherein the upper fixing bolt (43) is threadedly connected to the mounting base (1) via a mounting screw hole (101); The lower reinforcement assembly (5) comprises two lower support ear plates (51) fixedly mounted on a side of the support base (3) close to the mounting base (1), a lower reinforcement plate (52) rotatably mounted on one side of the lower support ear plate (51), and a lower fixing bolt (53) passing through one side of the lower reinforcement plate (52), wherein the lower fixing bolt (53) is threadedly connected to the mounting base (1) via a mounting screw hole (101).

2. A splicing bracket for rapid construction of box beams according to claim 1, characterized in that: The bottom of the support base (3) is provided with a connection groove (31) adapted to the mounting base (1), and the two ends of the rotating shaft (2) are rotatably connected to the two inner side walls of the connection groove (31).

3. The splicing bracket for rapid construction of box beams according to claim 1, characterized in that: A slide groove (102) is provided on the top of the mounting base (1), a slide support block (6) is slidably mounted inside the slide groove (102), and an adjustment component (7) for adjusting the position of the slide support block (6) is provided inside the slide groove (102).

4. A splicing bracket for rapid construction of box beams according to claim 3, characterized in that: The adjustment assembly (7) comprises an adjustment screw (71) rotatably mounted on the inner side wall of the slide groove (102) and an adjustment hand wheel (72) rotatably mounted on one end of the mounting base (1) away from the support base (3); the adjustment screw (71) and the sliding support block (6) are threadedly connected; the center of the adjustment hand wheel (72) is fixedly connected to one end of the adjustment screw (71); an adjustment handle (721) is rotatably mounted on one side of the adjustment hand wheel (72); and a reinforcing support nut (11) is threadedly mounted on the surface of the adjustment screw (71).

5. The splicing bracket for rapid construction of box beams according to claim 3 is characterized in that: Two sliding support ear plates (8) are fixedly mounted on the top of the sliding support block (6), and an adjusting support rod (9) is rotatably mounted between the two sliding support ear plates (8).

6. A splicing bracket for rapid construction of box beams according to claim 5, characterized in that: Two fixed support ear plates (10) are fixedly mounted on one side of the support base (3), and the other end of the adjustment support rod (9) is rotatably mounted between the two fixed support ear plates (10).

7. The splicing bracket for rapid construction of box beams according to claim 1, characterized in that: A fixed bottom block (12) is fixedly installed at the bottom of the mounting base (1), a tension screw (13) is passed through one side of the fixed bottom block (12), the tension screw (13) passes through the fixed bottom block (12) at the bottom of the mounting base (1) symmetrically, a locking nut (14) is threadedly installed on the surface of the tension screw (13), and a mounting base plate (15) is fixedly installed at the bottom of the fixed bottom block (12).

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