Movable large box girder outer mold for high-speed rail

Abstract

The utility model discloses a high-speed rail movable type large box girder outer mold which comprises a box girder outer mold body and two steel rails fixedly installed on the ground on the two sides of the box girder outer mold body side by side, and further comprises two supporting frames fixedly installed on the two sides of the box girder outer mold body respectively, and a plurality of lifting oil cylinders are evenly and fixedly installed at the bottoms of the supporting frames in the length direction. A telescopic cylinder is installed outside the lifting oil cylinder, a locking mechanism is installed outside the telescopic cylinder and used for locking the telescopic cylinder, a plurality of cross beams are evenly and fixedly installed at the bottom of the supporting frame, driving wheels are fixedly installed at the two ends of each cross beam, and the driving wheels make rolling contact with the corresponding steel rails. The box girder outer mold can be moved to the next construction section through the driving wheels, and when the box girder outer mold reaches the preset height, the telescopic cylinder is locked through the locking mechanism, so that the problem that the box girder outer mold is inclined and unstable due to the fact that the oil pressure of the pushing oil cylinder is unstable is solved, and the stability and the safety in the construction process are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to box girder template equipment technical field, more specifically, especially relates to a high -speed rail movable big box girder outer mould BACKGROUND

[0002] High -speed rail movable big box girder outer mould is a formwork system for prefabricating large box girder, and is mainly used in bridge construction. It has the following characteristics:

[0003] Structural composition: usually made of steel plate, ensure that the box girder surface is smooth, ensure the stability and bearing capacity of the formwork, equipped with wheel rail or hydraulic system, facilitate the movement and positioning of the formwork, and have an adjusting system for adjusting the size and shape of the formwork, suitable for different specifications of box girder.

[0004] Main features: fast movement and positioning, improve construction efficiency, design is firm, suitable for multiple use, reduce construction cost.

[0005] At present, a movable box girder outer mould appears, which realizes formwork lifting and movement through a hydraulic system, but the structure has the problems of low stability and low safety. If the lifting cylinder used for support is damaged and the oil pressure is unstable, the box girder outer mould will be tilted and collapsed. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a high -speed rail movable big box girder outer mould.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme: a high -speed rail movable big box girder outer mould, comprising a box girder outer mould and two steel rails fixedly installed on the ground on both sides of the box girder outer mould, further comprising two support frames, the two support frames are fixedly installed on both sides of the box girder outer mould respectively, multiple lifting cylinders are fixedly installed on the bottom of the support frame along the length direction uniformly, a telescopic cylinder is installed outside the lifting cylinder, a locking mechanism is installed outside the telescopic cylinder, and the locking mechanism is used for locking the telescopic cylinder, multiple cross beams are fixedly installed on the bottom of the support frame uniformly, drive wheels are fixedly installed at both ends of the cross beam, and the drive wheels are in rolling contact with the corresponding steel rails.

[0008] Preferably, the length of the support frame is consistent with the length of the box girder outer mould.

[0009] Preferably, the telescopic cylinder is composed of an outer cylinder and an inner cylinder, the outer cylinder is fixedly installed outside the lifting cylinder, the inner cylinder is located in the outer cylinder, and the inner cylinder is fixedly connected with the piston shaft of the lifting cylinder.

[0010] Preferably, the locking mechanism comprises a pushing oil cylinder and two inclined pull rods, the pushing oil cylinder is fixedly installed outside the outer cylinder, a piston shaft of the pushing oil cylinder is fixedly installed with a pushing plate, the pushing plate is movably hinged with the inclined pull rods at both ends, the inclined pull rods are provided with an integrated plug-in part at the other ends, the outer cylinder and the inner cylinder are axially symmetrically and uniformly provided with a plurality of positioning holes on the side surfaces, the middle part of the inclined pull rods is movably hinged with the outer side of the outer cylinder, and the piston shaft of the pushing oil cylinder is extended to insert the plug-in part into the positioning holes of the outer cylinder and the inner cylinder.

[0011] Preferably, the piston shaft of the lifting oil cylinder is fixedly installed with a supporting steel base at the lower end.

[0012] Preferably, the pushing oil cylinder and the lifting oil cylinder are controlled to start and stop through a remote control switch.

[0013] Preferably, the driving wheel is a running wheel.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses a driving wheel can move the box girder outer form to the next construction section, when the box girder outer form reaches the predetermined height, the telescopic cylinder is locked through the locking mechanism, thereby avoiding the problem of the instability of the oil pressure of the lifting oil cylinder, the inclination and instability of the box girder outer form, and improving the stability and safety of the construction process. ACCURACY OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating laboriously.

[0017] Figure 1 It is a perspective view of a high-speed rail movable large box girder outer form of the utility model,

[0018] Figure 2 It is an internal structure diagram of a high-speed rail movable large box girder outer form of the utility model,

[0019] Figure 3 It is a sectional view of a tray of the utility model,

[0020] Figure 4 It is a structure diagram of a pushing mechanism of the utility model.

[0021] In the drawing: 1, box girder outer form, 2, support frame, 3, cross beam, 4, steel rail, 5, driving wheel, 6, lifting oil cylinder, 7, telescopic cylinder, 71, outer cylinder, 72, inner cylinder, 8, locking mechanism, 81, pushing oil cylinder, 82, pushing plate, 83, inclined pull rod, 84, plug-in part. DETAILED DESCRIPTION

[0022] The preferred embodiments of the utility model are described in detail below with reference to the drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined.

[0023] Referring to Figures 1-4 As shown in the figure, the utility model provides a high -speed rail movable big box girder outer mould, including box girder outer mould 1 and two steel rails 4 that are fixedly installed on the ground on both sides of box girder outer mould 1 side by side, still including two support frames 2, support frame 2 is steel frame structure, two support frames 2 are fixedly installed on both sides of box girder outer mould 1 respectively, support frame 2 bottom is uniformly fixedly installed with multiple lifting oil cylinders 6 along the length direction, and the outside of lifting oil cylinder 6 is installed with telescopic cylinder 7, and the outside of telescopic cylinder 7 is installed with locking mechanism 8, and locking mechanism 8 is used to lock telescopic cylinder 7, the bottom of support frame 2 is uniformly fixedly installed with multiple cross beams 3, and the both ends of cross beam 3 are fixedly installed with driving wheel 5, and driving wheel 5 is in rolling contact with corresponding steel rail 4.

[0024] Further, to ensure that the support frame 2 can stably support the box girder outer mould 1, in the embodiment, the length of the support frame 2 is consistent with the length of the box girder outer mould 1.

[0025] In the embodiment, the telescopic cylinder 7 is composed of an outer cylinder 71 and an inner cylinder 72, the outer cylinder 71 is fixedly installed outside the lifting oil cylinder 6, and the inner cylinder 72 is located inside the outer cylinder 71, and the piston shaft of the lifting oil cylinder 6 is fixedly connected with the inner cylinder 72.

[0026] In the embodiment, the locking mechanism 8 includes a pushing oil cylinder 81 and two inclined rods 83, the pushing oil cylinder 81 is fixedly installed outside the outer cylinder 71, the piston shaft of the pushing oil cylinder 81 is fixedly installed with a push plate 82, the both ends of the push plate 82 are movably hinged with the inclined rods 83, the other end of the inclined rod 83 is provided with an integrated plug-in part 84, the both side surfaces of the outer cylinder 71 and the inner cylinder 72 are uniformly provided with a plurality of positioning holes 73 in axial symmetry, the middle part of the inclined rod 83 is movably hinged with the outside of the outer cylinder 71, the piston shaft of the pushing oil cylinder 81 is extended to insert the plug-in part 84 into the positioning hole 73 of the outer cylinder 71 and the inner cylinder 72, and when designed, the inner diameter of the positioning hole 73 needs to be greater than the outer diameter of the plug-in part 84, so as to facilitate the insertion and disengagement of the plug-in part 84.

[0027] Further, to increase the stability of the lifting oil cylinder 6 in contact with the ground, in the embodiment, the lower end of the piston shaft of the pushing oil cylinder 81 is fixedly installed with a support steel seat.

[0028] Further, to facilitate control, in the embodiment, the pushing oil cylinder 81 and the lifting oil cylinder 6 are controlled to start and stop through a remote control switch. Further, to increase the stability of the lifting oil cylinder 6 in contact with the ground, in the embodiment, the lower end of the piston shaft of the pushing oil cylinder 81 is fixedly installed with a support steel seat.

[0028] Further, to facilitate control, in the embodiment, the pushing oil cylinder 81 and the lifting oil cylinder 6 are controlled to start and stop through a remote control switch. Further, to increase the stability of the lifting oil cylinder 6 in contact with the ground, in the embodiment, the lower end of the piston shaft of the pushing oil cylinder 81 is fixedly installed with a support steel seat.

[0029] In the embodiment, the driving wheel 5 is a traveling wheel.

[0030] The specific operation steps are as follows: when the box girder outer form 1 needs to be moved, first, the form is removed, then the lifting oil cylinder 6 is retracted, the driving wheel 5 is in contact with the rail 4, the box girder outer form 1 can be moved to the next construction section through the driving wheel 5, after reaching the construction section, the lifting oil cylinder 6 is started to lift the box girder outer form 1, at this time the driving wheel 5 is separated from the surface of the rail 4, when the box girder outer form 1 reaches the predetermined height, the pushing oil cylinder 81 is started, the pushing oil cylinder 81 can deflect the pulling diagonal rod 83, so that the insertion part 84 is inserted into the telescopic cylinder 7 to lock the telescopic cylinder 7, thereby avoiding the problem of unstable oil pressure of the lifting oil cylinder 6, causing the box girder outer form 1 to tilt and be unstable.

[0031] Although the embodiments of the utility model are described in combination with the drawings, the patent owner can make various modifications or changes within the scope of the appended claims, as long as they do not exceed the protection scope described in the claims of the utility model, they should be within the protection scope of the utility model.

Claims

1. A mobile box girder outer formwork for high-speed railway, comprising a box girder outer formwork and two steel rails fixedly installed side-by-side on the ground on both sides of the box girder outer formwork, characterized in that: It also includes two support frames, which are respectively fixedly installed on both sides of the outer formwork of the box girder. Multiple lifting cylinders are evenly fixedly installed at the bottom of the support frame along the length direction. Telescopic cylinders are installed on the outside of the lifting cylinders. Locking mechanisms are installed on the outside of the telescopic cylinders to lock the telescopic cylinders. Multiple crossbeams are evenly fixedly installed at the bottom of the support frame. Drive wheels are fixedly installed at both ends of the crossbeams. The drive wheels are in rolling contact with the corresponding rails.

2. The mobile large box girder outer formwork for high-speed rail according to claim 1, characterized in that: The length of the support frame is the same as the length of the outer formwork of the box girder.

3. The mobile large box girder outer formwork for high-speed rail according to claim 1, characterized in that: The telescopic cylinder consists of an outer cylinder and an inner cylinder. The outer cylinder is fixedly installed outside the lifting cylinder, and the inner cylinder is located inside the outer cylinder. The inner cylinder is fixedly connected to the piston shaft of the lifting cylinder.

4. The mobile large box girder outer formwork for high-speed rail according to claim 3, characterized in that: The locking mechanism includes a push cylinder and two diagonal rods. The push cylinder is fixedly installed on the outside of the outer cylinder. A push plate is fixedly installed on the piston shaft of the push cylinder. Diagonal rods are movably hinged to both ends of the push plate. An integral insertion part is provided at the other end of the diagonal rod. Multiple positioning holes are evenly and axially symmetrically opened on both sides of the outer and inner cylinders. The middle part of the diagonal rod is movably hinged to the outside of the outer cylinder. The piston shaft of the push cylinder extends out and inserts the insertion part into the positioning holes of the outer and inner cylinders.

5. The mobile large box girder outer formwork for high-speed rail according to claim 1, characterized in that: A supporting steel base is fixedly installed at the lower end of the piston shaft of the lifting cylinder.

6. The mobile large box girder outer formwork for high-speed rail according to claim 4, characterized in that: The jacking cylinder and the lifting cylinder are controlled to start and stop via a remote control switch.

7. The mobile large box girder outer formwork for high-speed rail according to claim 1, characterized in that: The drive wheel is a traveling wheel.

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