CN213617344U - Prefabricated box girder bed-jig - Google Patents

Abstract

The utility model discloses a prefabricated box girder jig, which belongs to the technical field of bridge construction, and comprises a base frame, wherein the base frame comprises a first base frame and a second base frame, a first connecting column is arranged at the inner side of the first base frame, an internal thread is arranged inside the first connecting column, a first threaded column runs through the left side and the right side of the second base frame, one end of the first threaded column is connected with a rotating handle, and the other end of the first threaded column is in threaded connection with the first connecting column; the utility model discloses a mutually supporting between first screw thread post and the first connection post to distance between two bed framves has been adjusted, the convenient case roof beam preparation to different widths, can couple together two bed-jigs through the screw cap, the convenient case roof beam preparation to different length, through the height of the multiplicable bed-jig of detachable extension mechanism, the convenience is to the case roof beam preparation of co-altitude, make the case roof beam preparation of the applicable and different model sizes of same bed-jig, also promoted the progress of construction when having made things convenient for the workman to operate.

Description

Prefabricated box girder bed-jig

Technical Field

The utility model relates to a bridge construction technical field, concretely relates to prefabricated box girder bed-jig.

Background

The box girder is one of the middle girders in bridge engineering, the inner part of the box girder is hollow, flanges are arranged on two sides of the upper part of the box girder, the box girder is divided into a prefabricated box girder and a cast-in-place box girder, the box girder prefabricated in an independent field can be erected after the lower part of the engineering is completed by combining a bridge girder erection machine, the engineering progress can be accelerated, and the construction period can be saved, so that the prefabricated box girder is more and more widely applied in bridge construction, the moulding bed is a mold, the scaffold mainly plays a role in bearing stress, is special technological equipment for facilitating the assembly and welding of mechanical equipment, and is widely applied in template engineering, steel structure installation engineering and bridge engineering.

When the precast box girder is made in bridge construction, the bed-jig is often needed to be fixed and positioned so as to facilitate the making, but most of the existing precast box girder bed-jigs are fixed bed-jigs, when the box girder with different length and width is needed to be made, different bed-jigs need to be replaced, a large amount of time of workers can be wasted, and the construction progress is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prefabricated box girder bed-jig has solved the problem that the prefabricated box girder of different length width can not be made to same kind of bed-jig.

The purpose of the utility model can be realized by the following technical scheme:

the prefabricated box girder jig comprises a base frame and is characterized in that the base frame comprises a first base frame and a second base frame, a first connecting column is arranged on the inner side of the first base frame, internal threads are arranged inside the first connecting column, first threaded columns penetrate through the left side and the right side of the second base frame, one end of each first threaded column is connected with a rotating handle, and the other end of each first threaded column is in threaded connection with the first connecting column;

all be equipped with a plurality of bracing piece along length direction on first bed frame and the second bed frame, be connected with the strengthening rib between the bracing piece, the top of bracing piece is connected with first diaphragm, a plurality of screw hole has been seted up on the top of first diaphragm, the bottom of first diaphragm is equipped with telescopic prop, screw hole in-connection has extension mechanism.

Further, the lengthening mechanism comprises a second threaded column, the second threaded column is in threaded connection with a threaded hole, a second connecting column is arranged at the top end of the second threaded column, a third threaded column is in threaded connection with the second connecting column, and a second transverse plate is connected to the top end of the third threaded column.

Furthermore, the two ends of the first base frame and the second base frame are fixedly welded with threaded caps, and nuts are matched with the threaded caps in a threaded mode.

Furthermore, the bottom of first bed frame and second bed frame all is provided with the symmetry and removes fixed establishment.

Further, remove fixed establishment and include walking wheel and pneumatic cylinder, the walking wheel is universal adjustable wheel.

The utility model has the advantages that:

the utility model discloses a mutually supporting between first screw thread post and the first connection post to distance between two bed framves has been adjusted, the convenient case roof beam preparation to different widths, can couple together two bed-jigs through the screw cap, the convenient case roof beam preparation to different length, through the height of the multiplicable bed-jig of detachable extension mechanism, the convenience is to the case roof beam preparation of co-altitude, make the case roof beam preparation of the applicable and different model sizes of same bed-jig, also promoted the progress of construction when having made things convenient for the workman to operate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts;

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is a schematic structural view of the unarticulated lengthening mechanism;

FIG. 4 is a schematic view of the lengthening mechanism.

The reference numbers in the figures illustrate:

1. a base frame; 2. a first base frame; 3. a second base frame; 4. a first connecting column; 5. a first threaded post; 6. rotating the handle; 7. a support bar; 8. reinforcing ribs; 9. a first transverse plate; 10. a threaded hole; 11. a telescopic strut; 12. a lengthening mechanism; 13. a second threaded post; 14. a second connecting column; 15. a third threaded post; 16. a second transverse plate; 17. a threaded cap; 18. a nut; 19. a mobile fixing mechanism; 20. a traveling wheel; 21. and a hydraulic cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

A prefabricated box girder jig frame is shown in figures 1 and 3 and comprises a base frame 1, wherein the base frame 1 comprises a first base frame 2 and a second base frame 3, a first connecting column 4 is arranged on the inner side of the first base frame 2, internal threads are arranged inside the first connecting column 4, first threaded columns 5 are arranged on the left side and the right side of the second base frame 3 in a penetrating manner, one end of each first threaded column 5 is connected with a rotating handle 6, the other end of each first threaded column 5 is in threaded connection with the first connecting column 4, a plurality of supporting rods 7 are arranged on the first base frame 2 and the second base frame 3 along the length direction, reinforcing ribs 8 are connected between the supporting rods 7, a first transverse plate 9 is connected to the top ends of the supporting rods 7, a plurality of threaded holes 10 are formed in the top end of the first transverse plate 9, a telescopic support column 11 is arranged at the bottom end of the first transverse plate 9, a lengthening mechanism 12 is connected in the threaded holes 10, the first threaded columns, thereby facilitating adjustment of the distance between the first base frame 2 and the second base frame 3.

As shown in fig. 4 and 2, the lengthening mechanism 12 includes a second threaded column 13, the second threaded column 13 is in threaded connection with the threaded hole 10, a second connecting column 14 is arranged at the top end of the second threaded column 13, the second connecting column 14 is in threaded connection with a third threaded column 15, the top end of the third threaded column 15 is connected with a second transverse plate 16, threaded caps 17 are fixedly welded at the two ends of the first pedestal 2 and the second pedestal 3, nuts 18 are in threaded fit on the threaded caps 17, movable fixing mechanisms 19 are symmetrically arranged at the bottom ends of the first pedestal 2 and the second pedestal 3, each movable fixing mechanism 19 includes a traveling wheel 20 and a hydraulic cylinder 21, each traveling wheel 20 is a universal adjustable wheel, and the lengthening mechanism 12 is in threaded connection with the first transverse plate 9. Convenient dismantlement, accessible screw cap 17 is fixed with the cooperation of nut 18 between the bed-jig to increase the whole length of bed-jig, walking wheel 20 makes things convenient for the bed-jig to remove.

When the utility model is used, the travelling wheels 20 are moved to proper positions, the hydraulic cylinder 21 lifts and supports the whole jig frame, a plurality of workers rotate the rotating handle 6 at the same time, and the rotating handle 6 drives the first threaded column 5 to rotate in the first connecting column 4, so that the distance between the first base frame 2 and the second base frame 3 is adjusted, and box girders with different widths can be conveniently manufactured; if the length of the jig frame is not enough, the two jig frames can be spliced and fixed through the threaded cap 17 arranged on the jig frame and the nut 18, so that box beams with different lengths can be conveniently manufactured; if the height of bed-jig is not enough, at this moment, as shown in fig. 1, connect together extension mechanism 12 through the screw hole 10 that is equipped with on the first diaphragm 9 to open the telescopic prop 11 of first diaphragm 9 bottom, fix the whole bed-jig, prevent that newly-increased extension mechanism 12 is overweight, cause the damage to the bed-jig, reduce the emergence of incident, extension mechanism 12 accessible third screw post 15 is at second spliced pole 14 internal rotation simultaneously, adjust the distance between extension mechanism 12 and the first diaphragm 9, made the case roof beam of co-altitude not.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims (5)

1. The prefabricated box girder jig comprises a base frame (1) and is characterized in that the base frame (1) comprises a first base frame (2) and a second base frame (3), a first connecting column (4) is arranged on the inner side of the first base frame (2), internal threads are arranged inside the first connecting column (4), first threaded columns (5) penetrate through the left side and the right side of the second base frame (3), one end of each first threaded column (5) is connected with a rotating handle (6), and the other end of each first threaded column (5) is in threaded connection with the corresponding first connecting column (4);

all be equipped with a plurality of bracing piece (7) along length direction on first bed frame (2) and second bed frame (3), be connected with between bracing piece (7) strengthening rib (8), the top of bracing piece (7) is connected with first diaphragm (9), a plurality of screw hole (10) have been seted up on the top of first diaphragm (9), the bottom of first diaphragm (9) is equipped with telescopic prop (11), threaded hole (10) in-connection has extension mechanism (12).

2. A precast box girder jig according to claim 1, characterized in that the lengthening mechanism (12) comprises a second threaded column (13), the second threaded column (13) is in threaded connection with the threaded hole (10), a second connecting column (14) is arranged at the top end of the second threaded column (13), a third threaded column (15) is in threaded connection with the second connecting column (14), and a second transverse plate (16) is connected at the top end of the third threaded column (15).

3. The precast box girder bed-jig of claim 1, characterized in that both ends of the first base frame (2) and the second base frame (3) are fixedly welded with screw caps (17), and nuts (18) are screwed on the screw caps (17).

4. A precast box girder bed-jig according to claim 1, characterized in that the bottom ends of the first base frame (2) and the second base frame (3) are symmetrically provided with moving and fixing mechanisms (19).

5. A precast box girder bed-jig according to claim 4, characterized in that the moving fixing mechanism (19) comprises a travelling wheel (20) and a hydraulic cylinder (21), and the travelling wheel (20) is a universal adjustable wheel.

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