Walking type hydraulic formwork for beam yard

Abstract

The utility model discloses a walking type hydraulic formwork for a girder yard. The walking type hydraulic formwork comprises a box girder outer formwork, a moving assembly, a box girder inner formwork, a pedestal, a limb protection device and a limiting device. Wherein the two groups of box girder outer molds are oppositely arranged left and right; the moving assembly is used for driving the box girder outer mold to move in the transverse direction, the longitudinal direction and the vertical direction; the edge protection device comprises a protective fence and a support, the support is installed on the outer side of the box girder outer mold, and the protective fence is arranged on the periphery of the support in a surrounding mode; and the limiting device is used for limiting the box girder inner mold and preventing the box girder inner mold from floating upwards. The device is convenient to operate on site, high in safety, capable of being repeatedly used in the later period and high in turnover rate, and the construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of precast box girders. More specifically, the utility model relates to a walking hydraulic formwork for a beam yard. Background Art

[0002] With the rapid development of bridge construction, box girders are usually prefabricated in factories during manufacturing, and hydraulic formwork is required during the beam manufacturing process. Currently, the hydraulic formwork is often hoisted to the site, which is costly, risky, and will also cause certain losses to the hydraulic formwork during the hoisting process, reducing the turnover rate of the hydraulic formwork. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a walking hydraulic formwork for a beam yard, which is convenient to operate on site, has high safety, can be reused later, has a high turnover rate, and reduces the construction cost.

[0004] The technical solution adopted by the utility model to solve this technical problem is: a walking hydraulic formwork for a beam yard, comprising: a box girder outer formwork, a moving component, a box girder inner formwork, a pedestal, a edge protection device and a limiting device; wherein,

[0005] Two groups of box girder outer formworks are arranged opposite to each other left and right;

[0006] The moving component is used to drive the box girder outer formwork to move horizontally, longitudinally and vertically;

[0007] The edge protection device comprises a guardrail and a bracket, the bracket is installed on the outer side of the box girder outer formwork, and the guardrail surrounds the outer periphery of the bracket;

[0008] The limiting device is used to limit the box girder inner formwork to prevent the box girder inner formwork from floating up.

[0009] As a further scheme of the utility model: the box girder outer formwork comprises a box girder outer formwork plate and a box girder outer formwork skeleton.

[0010] As a further scheme of the utility model: the moving component comprises: a longitudinal track, which is installed on the basic structure of the beam yard and arranged longitudinally;

[0011] A side formwork sliding trolley, which is movably arranged on the longitudinal track, a sliding seat is installed on the side formwork sliding trolley, the sliding seat can move horizontally along the side formwork sliding trolley, a transverse demoulding oil cylinder is installed on the side formwork sliding trolley, and the transverse demoulding oil cylinder drives the sliding seat to move horizontally relative to the side formwork sliding trolley; a vertical demoulding oil cylinder is installed on the sliding seat, and the vertical demoulding oil cylinder is connected with the box girder outer formwork skeleton to drive the box girder outer formwork skeleton to move vertically.

[0012] As a further solution of the utility model: the bottom of the box girder external formwork skeleton is connected and reinforced through flat connection square pipes, the flat connection square pipes extend longitudinally, a vertical oil cylinder bracket is transversely arranged in the middle of the box girder external formwork skeleton, and the vertical demolding oil cylinder is connected with the vertical oil cylinder bracket.

[0013] As a further solution of the utility model: the edge protection device further includes a stair assembly, and the stair assembly is detachably fixed to the bracket.

[0014] As a further solution of the utility model: the limiting device includes a flat connection cross brace, the two ends of which are fixed on the box girder external formwork skeletons of two groups of box girders. A plurality of threaded holes are arranged on the flat connection cross brace above the box girder internal formwork. A lead screw is installed on the threaded holes, the lead screw is vertically arranged to adjust the distance from the box girder internal formwork, and the lead screw is fixed by a nut.

[0015] As a further solution of the utility model: the pedestal is of a steel-concrete structure, the upper structure of the pedestal is of a steel structure, the lower structure of the pedestal is of a concrete structure, the lower part of the upper structure of the pedestal is an I-beam, anchor bolts are embedded in the lower structure of the pedestal, a pressing plate is penetrated through the anchor bolts, and the pressing plate presses and fixes the I-beam of the upper structure of the pedestal and locks the pressing plate through a nut.

[0016] The utility model has at least the following beneficial effects: edge protection devices are installed on both sides of the walking hydraulic formwork in this application, ensuring the safety of construction workers. The distances between two groups of box girder external formworks in the up-down, left-right, and front-back directions are adjusted through the moving components, realizing the precise adjustment of the hydraulic formwork, automating the disassembly and assembly of the formwork, reducing the deformation caused by uneven stress of the formwork during the construction process, breaking the traditional formwork removal process of knocking and prying, and greatly reducing the damage to the beam body.

[0017] Other advantages, objectives, and features of the utility model will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the utility model. Description of the Drawings

[0018] Figure 1 is the structural schematic diagram of the walking hydraulic formwork of the utility model;

[0019] Figure 2 is the second schematic diagram of the walking hydraulic formwork for the beam yard of the utility model.

[0020] Among them, 1 - external formwork of box girder, 2 - external formwork skeleton of box girder, 3 - internal formwork of box girder, 4 - upper structure of pedestal, 5 - lower structure of pedestal, 6 - anchor bolt, 7 - pressure plate, 8 - longitudinal track, 9 - side formwork sliding trolley, 10 - sliding seat, 11 - transverse demoulding oil cylinder, 12 - vertical demoulding oil cylinder, 13 - flat joint square pipe, 14 - vertical oil cylinder bracket, 15 - guardrail, 16 - support, 17 - tie rod, 18 - flat joint cross brace, 19 - lead screw, 20 - nut. Detailed implementation mode

[0021] The present utility model will be described in detail and completely below with reference to the accompanying drawings. Those of ordinary skill in the art will be able to implement the present utility model based on these descriptions. Before describing the present utility model with reference to the accompanying drawings, it should be particularly noted that: the technical solutions and technical features provided in each part including the following description of the present utility model can be combined with each other without conflict.

[0022] In addition, the embodiments of the present utility model involved in the following description are usually only a part of the embodiments of the present utility model, rather than all the embodiments. Therefore, all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts should fall within the protection scope of the present utility model.

[0023] The following further describes the present utility model in detail with reference to the accompanying drawings and embodiments, and the specific implementation process is as follows:

[0024] As Figures 1-2 shown, the present utility model provides a walking hydraulic formwork for a beam yard, including: an external formwork of a box girder, a moving component, an internal formwork 3 of a box girder, a pedestal, an edge protection device and a limiting device; among them,

[0025] Two groups of external formworks of box girders are arranged opposite to each other left and right;

[0026] The moving component is used to drive the external formwork of the box girder to move horizontally, longitudinally and vertically;

[0027] The edge protection device includes a guardrail 15 and a support 16. The support 16 is installed on the outside of the external formwork of the box girder, and the guardrail 15 surrounds the outer periphery of the support 16;

[0028] The limiting device is used to limit the internal formwork 3 of the box girder to prevent the internal formwork 3 of the box girder from floating up.

[0029] In this application, the external formwork of the box girder adopts an integral hydraulic steel formwork. Edge protection devices are installed on both sides of the walking hydraulic formwork, ensuring the safety of construction workers. By adjusting the upper, lower, left, right, front and back distances between the two groups of external formworks of the box girder through the moving component, precise adjustment of the hydraulic formwork is achieved.

[0030] The technical solution may further include the following technical details to better achieve the technical effect: The box girder external formwork includes a box girder external formwork 1 and a box girder external formwork skeleton 2, and the support 16 is installed on the outer side of the box girder external formwork skeleton 2.

[0031] The technical solution may further include the following technical details to better achieve the technical effect: The moving component includes:

[0032] A longitudinal track 8, which is installed on the foundation structure of the beam yard and arranged longitudinally. Two groups of longitudinal tracks 8 are installed on the outer side of each group of box girder external formworks for the side formwork sliding trolley 9 to travel.

[0033] The side formwork sliding trolley 9 is movably arranged on the longitudinal track 8. A sliding seat 10 is installed on the side formwork sliding trolley 9, and the sliding seat 10 can move horizontally along the side formwork sliding trolley 9. A transverse demolding oil cylinder 11 is installed on the side formwork sliding trolley 9, and the transverse demolding oil cylinder 11 drives the sliding seat 10 to move horizontally relative to the side formwork sliding trolley 9. A vertical demolding oil cylinder 12 is installed on the sliding seat 10, and the vertical demolding oil cylinder 12 is connected to the box girder external formwork skeleton 2 to drive the vertical movement of the box girder external formwork skeleton 2. The three-direction adjustment of the box girder external formwork is realized through the moving component. During construction, first move the box girder external formwork to the pedestal through the fixed longitudinal track 8, and operate the two side box girder external formworks to the designed positions on both sides of the pedestal by the moving component, and fix the box girder external formwork through the tie rod 17. The support 16 of the edge protection device is installed on the side formwork sliding trolley 9.

[0034] The technical solution may further include the following technical details to better achieve the technical effect: The bottom of the box girder external formwork skeleton 2 is connected and reinforced by a flat connection square pipe 13, and the flat connection square pipe 13 extends longitudinally. A vertical oil cylinder bracket 14 is transversely arranged in the middle of the box girder external formwork skeleton 2, and the vertical demolding oil cylinder 12 is connected to the vertical oil cylinder bracket 14.

[0035] The technical solution may further include the following technical details to better achieve the technical effect: The edge protection device further includes a stair component (not shown in the figure), and the stair component is detachably fixed to the support 16.

[0036] The technical solution may further include the following technical details to better achieve the technical effect: The limiting device includes a flat connection cross brace 18, the two ends of which are fixed to the box girder external formwork skeletons 2 of two groups of box girder external formworks. The flat connection cross brace 18 is provided with a plurality of threaded holes above the box girder internal formwork 3, and a lead screw 19 is installed on the threaded holes. The lead screw 19 is arranged vertically to adjust the distance from the box girder internal formwork 3, so as to limit the box girder internal formwork 3 to prevent it from floating. The lead screw 19 is fixed by a nut 20.

[0037] The technical solution may further include the following technical details to better achieve the technical effect: The pedestal serves as the bottom formwork of the box girder and is of a steel-concrete structure. The upper structure 4 of the pedestal is of a steel structure, and the lower structure 5 of the pedestal is of a concrete structure. The lower part of the upper structure 4 of the pedestal is an I-beam. Anchor bolts 6 are embedded in the lower structure 5 of the pedestal. A pressing plate 7 is penetrated through the anchor bolts 6. The pressing plate 7 presses and fixes the I-beam of the upper structure 4 of the pedestal and locks the pressing plate 7 through a nut 20.

[0038] Although the embodiments of the present invention have been disclosed as above, it is not limited to only the applications listed in the description and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the embodiments shown and described herein.

Claims

1. A walking hydraulic formwork for a beam yard, characterized in that, Including: The external formwork of the box girder, the moving component, the internal formwork of the box girder, the pedestal, the edge protection device and the limiting device; among them, Two groups of external formworks of the box girder are arranged opposite to each other left and right; The moving component is used to drive the external formwork of the box girder to achieve horizontal, longitudinal and vertical movements; The edge protection device includes a guardrail and a bracket. The bracket is installed on the outside of the external formwork of the box girder, and the guardrail surrounds the outer periphery of the bracket; The limiting device is used to limit the internal formwork of the box girder to prevent the internal formwork of the box girder from floating up.

2. The walking hydraulic formwork for beam yard according to claim 1, wherein The external formwork of the box girder includes an external formwork of the box girder and a framework of the external formwork of the box girder.

3. The walking hydraulic formwork for the beam yard according to claim 2, wherein The moving component includes: a longitudinal track, which is installed on the foundation structure of the beam yard and arranged longitudinally; The side form sliding trolley is movably arranged on the longitudinal track. A sliding seat is installed on the side form sliding trolley, and the sliding seat can move horizontally along the side form sliding trolley. A transverse demoulding oil cylinder is installed on the side form sliding trolley, and the transverse demoulding oil cylinder drives the sliding seat to move horizontally relative to the side form sliding trolley; a vertical demoulding oil cylinder is installed on the sliding seat, and the vertical demoulding oil cylinder is connected to the framework of the external formwork of the box girder to drive the framework of the external formwork of the box girder to move vertically.

4. The walking hydraulic formwork for beam yard according to claim 3, characterized in that The bottom of the framework of the external formwork of the box girder is connected and reinforced by a flat joint square pipe, and the flat joint square pipe extends longitudinally. A vertical oil cylinder bracket is transversely arranged in the middle of the framework of the external formwork of the box girder, and the vertical demoulding oil cylinder is connected to the vertical oil cylinder bracket.

5. The walking hydraulic formwork for beam yard according to claim 3, characterized in that The edge protection device further includes a stair component, and the stair component is detachably fixed to the bracket.

6. The walking hydraulic formwork for beam yard according to claim 2, wherein, The limiting device includes a flat joint cross brace, the two ends of which are fixed to the frameworks of the external formworks of the two groups of box girders. A plurality of threaded holes are arranged on the flat joint cross brace above the internal formwork of the box girder. A lead screw is installed on the threaded hole, and the lead screw is arranged vertically to adjust the distance from the internal formwork of the box girder, and the lead screw is fixed by a nut.

7. The walking hydraulic formwork for beam yard according to claim 1, characterized in that, The pedestal is a steel-concrete structure. The upper structure of the pedestal is a steel structure, and the lower structure of the pedestal is a concrete structure. The lower part of the upper structure of the pedestal is an I-beam. Anchor bolts are embedded in the lower structure of the pedestal, and a pressing plate is penetrated through the anchor bolts. The pressing plate presses and fixes the I-beam of the upper structure of the pedestal and is locked by a nut.

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