Standardized moulding bed for box girder

Abstract

The utility model relates to the technical field of box girders, in particular to a box girder standardized moulding bed frame which comprises two hollow bottom frames, transverse plates are fixedly installed at the front ends and the rear ends of the tops of the hollow bottom frames, and vertical plates are fixedly installed at the left ends and the right ends of the tops of the transverse plates. Two inclined plates are movably mounted in the center of the top of the transverse plate, top frames are fixedly mounted at the top ends of the opposite sides of the left and right inclined plates, placing frames are movably mounted at the bottom ends of the opposite sides of the left and right inclined plates, and an adjusting mechanism for adjusting the distance between the top frames and the placing frames is arranged in the center of the top of the hollow bottom frame. According to the standardized forming die frame for the box girder, when the standardized forming die frame is used, through the arranged adjusting mechanism, the distance between the placing frames on the two sides, the distance between the top frame and the inclined plate can be adjusted, in this way, width adjustment of the forming die frame is achieved, and the problems that an existing forming die frame is fixed in size, cannot be suitable for box girders with different widths and is low in practicability are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of box girders, and particularly relates to a standardized formwork support for box girders. Background Technique

[0002] A box girder is a type of beam in bridge engineering. It is hollow inside and has flanges on both upper sides, similar to a box, hence the name. It is divided into single-box, multi-box, etc. Box girders made of reinforced concrete are divided into precast box girders and cast-in-place box girders.

[0003] When preparing precast box girders, a standardized formwork support is required for bundling steel bars. The existing formwork support has a fixed size and cannot be applied to box girders of different widths, reducing the practicality of the formwork support. Therefore, a standardized formwork support for box girders is proposed to solve the above problems. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a standardized formwork support for box girders, which has the advantages of adjustable size, etc., and solves the problems that the existing formwork support has a fixed size and cannot be applied to box girders of different widths, reducing the practicality of the formwork support.

[0005] To achieve the above object, the utility model provides the following technical solution: A standardized formwork support for box girders includes two hollow bottom frames. Both the front and rear ends of the top of the hollow bottom frame are fixedly installed with cross plates. Both the left and right ends of the top of the cross plate are fixedly installed with vertical plates. The center of the top of the cross plate is movably installed with two inclined plates. The top ends of the opposite sides of the left and right inclined plates are fixedly installed with top frames. The bottom ends of the opposite sides of the left and right inclined plates are movably installed with placing frames. An adjusting mechanism for adjusting the distance between the top frame and the placing frame is arranged at the center of the top of the hollow bottom frame.

[0006] Further, a chute is opened at the center of the top of the cross plate. Both the left and right ends of the inside of the chute are slidably installed with sliders. The inclined plates and the placing frames are both fixedly installed on the tops of the sliders.

[0007] Further, the adjusting mechanism includes a mounting plate, a limiting groove, a double-shaft screw rod, a limiting slider, and a rotating handle. The mounting plate is fixedly installed at the center of the top of the hollow bottom frame. A limiting groove is opened at the center of the top of the mounting plate. The right side of the inner wall of the limiting groove is rotatably installed with a double-shaft screw rod that penetrates through and extends to the left side of the mounting plate. The outer peripheral wall of the double-shaft screw rod is threadedly connected with two limiting sliders. The limiting sliders are slidably connected with the limiting groove. The top of the limiting slider is fixedly connected with the bottom of the placing frame. The left end of the double-shaft screw rod is fixedly installed with a rotating handle. The double-shaft screw rod is composed of two screw rods with opposite thread directions.

[0008] Further, a plug-in block is fixedly installed on the back surface of the hollow bottom frame. A through hole is opened on the right side of the plug-in block. One end of a fixing bolt is inserted through the front end of each of the opposite sides of the two hollow bottom frames and extends to the opposite side of the two hollow bottom frames. A fixing nut is threadedly connected to the outer peripheral wall of the fixing bolt.

[0009] Further, positioning bolts are fixedly installed at the top ends of the opposite sides of the left and right inclined plates, and one end of each positioning bolt penetrates through and extends to the outside of the vertical plate. A positioning nut is arranged on the outer peripheral wall of the positioning bolt.

[0010] Further, positioning sleeves are fixedly installed on the opposite sides of the front inclined plate and the rear inclined plate. Positioning steel bars are inserted into the opposite sides of the left positioning sleeve and the right positioning sleeve.

[0011] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0012] 1. For this standardized formwork support for box girders, through the provided adjusting mechanism, during use, the distance between the two placement frames, the top frame and the inclined plates can be adjusted. In this way, the width adjustment of the formwork support is achieved, solving the problem that the size of the existing formwork support is fixed and cannot be applied to box girders of different widths, reducing the practicality of the formwork support.

[0013] 2. For this standardized formwork support for box girders, through the provided plug-in block and fixing bolt, when splicing the formwork support, insert the plug-in block of the rear hollow bottom frame into the front hollow bottom frame, pass the fixing bolt through the through holes on the front hollow bottom frame, the rear plug-in block and the front hollow bottom frame in sequence, and tighten the fixing nut, then the splicing of the two hollow bottom frames can be completed. In this way, the user can splice different numbers of hollow bottom frames according to the actual length of the box girder, improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is the present utility model Figure 1 enlarged view at A in;

[0016] Figure 3 is the present utility model Figure 1 enlarged view at B in;

[0017] Figure 4 is a schematic structural diagram of the adjusting mechanism of the present utility model.

[0018] In the figure: 1 is a hollow bottom frame, 11 is a plug-in block, 12 is a through hole, 13 is a fixing bolt, 14 is a fixing nut, 2 is a cross plate, 21 is a sliding groove, 22 is a sliding block, 3 is a vertical plate, 4 is an inclined plate, 41 is a positioning bolt, 42 is a positioning nut, 5 is a top frame, 6 is a placement rack, 7 is an adjusting mechanism, 71 is a mounting plate, 72 is a limiting groove, 73 is a double-shaft screw rod, 74 is a limiting sliding block, and 75 is a rotating handle. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-4 , a standardized formwork support for box girders in this embodiment includes two hollow bottom frames 1. Transverse plates 2 are fixedly installed at both the front and rear ends of the top of the hollow bottom frame 1. Vertical plates 3 are fixedly installed at both the left and right ends of the top of the transverse plate 2. Two inclined plates 4 are movably installed at the center of the top of the transverse plate 2. Top frames 5 are fixedly installed at the top ends of the opposite sides of the left and right inclined plates 4. Placement racks 6 are movably installed at the bottom ends of the opposite sides of the left and right inclined plates 4. An adjusting mechanism 7 for adjusting the distance between the top frame 5 and the placement rack 6 is provided at the center of the top of the hollow bottom frame 1.

[0021] In this embodiment, a sliding groove 21 is opened at the center of the top of the transverse plate 2. Sliding blocks 22 are slidably installed at both the left and right ends of the inside of the sliding groove 21. The inclined plates 4 and the placement racks 6 are fixedly installed at the top of the sliding blocks 22.

[0022] Specifically, the arrangement of the sliding blocks 22 and the sliding grooves 21 enables the inclined plates 4 and the placement racks 6 on both sides to move horizontally.

[0023] In this embodiment, the adjusting mechanism 7 includes a mounting plate 71, a limiting groove 72, a double-shaft screw rod 73, a limiting sliding block 74, and a rotating handle 75. A mounting plate 71 is fixedly installed at the center of the top of the hollow bottom frame 1. A limiting groove 72 is opened at the center of the top of the mounting plate 71. A double-shaft screw rod 73 with one end penetrating and extending to the left side of the mounting plate 71 is rotatably installed on the right side inner wall of the limiting groove 72. Two limiting sliding blocks 74 are threadedly connected to the outer peripheral wall of the double-shaft screw rod 73. The limiting sliding blocks 74 are slidably connected to the limiting groove 72. The top of the limiting sliding block 74 is fixedly connected to the bottom of the placement rack 6. A rotating handle 75 is fixedly installed at the left end of the double-shaft screw rod 73. The double-shaft screw rod 73 is composed of two threaded rods with opposite thread directions.

[0024] Specifically, hold the rotating handle 75 and rotate the double-axis screw rod 73. The double-axis screw rod 73 drives the limit sliders 74 on both sides to move relatively. The limit sliders 74 drive the placement rack 6, the top rack 5 and the inclined plate 4 to move relatively, thereby realizing the adjustment of the size.

[0025] In this embodiment, a plug-in block 11 is fixedly installed on the back surface of the hollow bottom frame 1. A through hole 12 is opened on the right side of the plug-in block 11. Fixing bolts 13 with one end penetrating and extending to the opposite side of the two hollow bottom frames 1 are inserted at the front ends of the opposite sides of the two hollow bottom frames 1. A fixing nut 14 is threadedly connected to the outer peripheral wall of the fixing bolt 13.

[0026] Specifically, insert the plug-in block 11 of the rear hollow bottom frame 1 into the front hollow bottom frame 1. Pass the fixing bolt 13 through the through hole 12 on the front hollow bottom frame 1, the rear plug-in block 11 and the front hollow bottom frame 1 in sequence, and tighten the fixing nut 14, then the splicing of the two hollow bottom frames 1 can be completed. In this way, the user can splice different numbers of hollow bottom frames 1 according to the actual length of the box girder.

[0027] In this embodiment, positioning bolts 41 with one end penetrating and extending to the outside of the vertical plate 3 are fixedly installed at the top ends of the opposite sides of the left and right inclined plates 4. A positioning nut 42 is arranged on the outer peripheral wall of the positioning bolt 41.

[0028] Specifically, loosen the positioning nut 42. When the left and right inclined plates 4 move, the positioning bolt 41 can move along with it. Tighten the positioning nut 42 to fix the positioning bolt 41. In this way, the positioning bolt 41 can provide an additional supporting force for the upper end of the inclined plate 4 to prevent the inclined plates 4 on both sides from deforming when bundling steel bars.

[0029] In this embodiment, positioning sleeves are fixedly installed on the opposite sides of the front inclined plate 4 and the rear inclined plate 4. Positioning steel bars are inserted into the opposite sides of the left positioning sleeve and the right positioning sleeve.

[0030] Specifically, when bundling steel bars, the positioning steel bar can be pushed to move between the left and right inclined plates 4 to provide a supporting force for bundling the transverse steel bars.

[0031] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0032] Although the embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A standardized formwork support for box girders, comprising two hollow bottom frames (1). At the front and rear ends of the top of the hollow bottom frame (1), transverse plates (2) are fixedly installed. At the left and right ends of the top of the transverse plate (2), vertical plates (3) are fixedly installed. At the center of the top of the transverse plate (2), two inclined plates (4) are movably installed. At the top ends of the opposite sides of the left and right inclined plates (4), top frames (5) are fixedly installed. At the bottom ends of the opposite sides of the left and right inclined plates (4), placing frames (6) are movably installed, and it is characterized in that: At the center of the top of the hollow bottom frame (1), there is an adjusting mechanism (7) for adjusting the distance between the adjusting top frame (5) and the placing frame (6).

2. The standardized tyre formwork for box girders according to claim 1, characterized in that: At the center of the top of the cross plate (2), a sliding groove (21) is opened. At both left and right ends inside the sliding groove (21), sliding blocks (22) are slidably installed. The inclined plate (4) and the placing frame (6) are both fixedly installed on the tops of the sliding blocks (22).

3. A standardized formwork for box girders according to claim 1, characterized in that: The adjusting mechanism (7) includes a mounting plate (71), a limiting groove (72), a double-shaft screw rod (73), limiting sliding blocks (74), and a rotating handle (75). At the center of the top of the hollow bottom frame (1), the mounting plate (71) is fixedly installed. At the center of the top of the mounting plate (71), the limiting groove (72) is opened. On the right side inner wall of the limiting groove (72), the double-shaft screw rod (73) with one end penetrating and extending to the left side of the mounting plate (71) is rotatably installed. On the outer peripheral wall of the double-shaft screw rod (73), two limiting sliding blocks (74) are threadedly connected. The limiting sliding blocks (74) are slidably connected with the limiting groove (72). The tops of the limiting sliding blocks (74) are fixedly connected with the bottom of the placing frame (6). At the left end of the double-shaft screw rod (73), the rotating handle (75) is fixedly installed. The double-shaft screw rod (73) is composed of two threaded rods with opposite thread directions.

4. A standardized tire formwork for box girders according to claim 1, characterized in that: On the back of the hollow bottom frame (1), a plug-in block (11) is fixedly installed. On the right side of the plug-in block (11), a through hole (12) is opened. At the front ends of the opposite sides of the two hollow bottom frames (1), fixing bolts (13) with one end penetrating and extending to the opposite sides of the two hollow bottom frames (1) are inserted. On the outer peripheral wall of the fixing bolts (13), fixing nuts (14) are threadedly connected.

5. A standardized formwork for box girders according to claim 1, characterized in that: At the top ends of the opposite sides of the left and right inclined plates (4), positioning bolts (41) with one end penetrating and extending to the outside of the vertical plate (3) are fixedly installed. On the outer peripheral wall of the positioning bolts (41), positioning nuts (42) are arranged.

6. The standardized tyre formwork for box girders according to claim 1, characterized in that: On the opposite sides of the front inclined plate (4) and the rear inclined plate (4), positioning sleeves are fixedly installed. On the opposite sides of the left positioning sleeve and the right positioning sleeve, positioning steel bars are inserted.

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