Prefabricated box girder overhead line system foundation embedded part positioning tool

Abstract

The utility model provides a positioning tool for a foundation embedded part of a prefabricated box girder overhead line system, belongs to the technical field of bridge building prefabrication positioning tools, and aims to solve the problems that the position of the embedded part deviates and train operation is affected due to inaccurate measurement and positioning of a box girder prefabrication field. The bottom of the vertical plate is vertically connected with a foot stool, the positioning main plate, the vertical plate and the foot stool integrally form a step shape, a plurality of fixing cylinders are distributed on the positioning main plate in an array mode, and inner holes of the fixing cylinders penetrate through the positioning main plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of pre-positioning tools for bridge construction, and more specifically relates to a positioning tool for embedded parts of a prefabricated box girder contact network foundation. Background Art

[0002] In high-speed railways and urban rail transit, the contact network inside prefabricated box girders usually takes the form of an overhead contact wire or a third rail. To ensure the stability and safety of the contact network, the positioning of the contact network is very important during the production of prefabricated box girders. The relevant embedded parts must be accurately arranged during the prefabrication process to facilitate the subsequent installation of the contact network.

[0003] Traditional positioning requires on-site measurements and the installation of embedded parts at corresponding positions so that the position of the contact network can be located in subsequent work. However, on-site measurements are easily interfered with by various factors, resulting in inaccurate positioning and deviations in the position of embedded parts, which affects the subsequent installation of the contact network.

[0004] Therefore, in view of this, research and improvement are carried out in response to the existing situation, and a prefabricated box girder contact network foundation embedded parts positioning tool is provided, in order to make the on-site construction more standardized and normalized. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a prefabricated box girder contact network foundation embedded parts positioning tooling to solve the problem that the inaccurate measurement and positioning in the existing box girder prefabrication site leads to embedded parts position deviation, which affects train operation.

[0006] The purpose and effect of the positioning tool for embedded parts of prefabricated box girder contact network foundation of the utility model are achieved by the following specific technical means:

[0007] A prefabricated box girder contact network foundation embedded parts positioning tool, including a positioning main board, one end of the positioning main board is vertically connected to a vertical board, the bottom of the vertical board is vertically connected to a tripod, the positioning main board, the vertical board and the tripod form a stepped shape as a whole, a plurality of fixing cylinders are arrayed on the positioning main board, and the inner holes of the plurality of fixing cylinders pass through the positioning main board.

[0008] Furthermore, the plurality of fixing cylinders are connected via positioning ribs.

[0009] Furthermore, a connecting plate is vertically provided on the top of the vertical plate, and the connecting plate is connected to the positioning main plate through mounting bolts.

[0010] Furthermore, a movable slot is vertically opened on the connecting plate, a bolt is passed through the positioning main plate, and the bottom of the bolt passes through the movable slot and is fixed by a nut.

[0011] Furthermore, a first reinforcing rib is fixedly provided between the vertical plate and the connecting plate.

[0012] Furthermore, a second reinforcing rib is fixedly provided between the vertical plate and the tripod, and the bottom end of the vertical plate is lower than the bottom surface of the tripod.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The edge of the box beam formwork frame is aligned with the tripod, and fixed with fixtures or bolts. The size of the positioning main board is extended above the box beam frame. The column of the embedded part is passed through the fixing tube to fix its position, thereby ensuring the position accuracy of the embedded part and making the embedded part installation process more standardized and normalized, reducing the impact of human factors on construction quality. It is also reusable, which reduces construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a three-dimensional diagram of a positioning tool for embedded parts of a prefabricated box beam contact network foundation.

[0016] Figure 2 The utility model is a top view of a positioning tool for embedded parts of a prefabricated box beam contact network foundation.

[0017] Figure 3 It is a schematic diagram of the state of the utility model when in use.

[0018] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0019] 1. Positioning mainboard; 2. Positioning edge; 3. Fixing tube; 4. Vertical plate; 5. Tripod; 6. First reinforcing rib; 7. Fixing fixture; 8. Mounting bolt; 9. Second reinforcing rib; 401. Connecting plate; 402. Movable slot. DETAILED DESCRIPTION

[0020] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances. Example

[0023] As attached Figure 1 To the attached Figure 3 As shown:

[0024] The utility model provides a prefabricated box girder contact network foundation embedded parts positioning tool, including a positioning main board 1, one end of the positioning main board 1 is vertically connected to a vertical plate 4, the bottom of the vertical plate 4 is vertically connected to a tripod 5, the positioning main board 1, the vertical plate 4, and the tripod 5 are formed into a stepped shape as a whole, and are aligned with the edge of the box girder template frame through the tripod 5, and are connected by a fixing fixture 7 or a screw. The fixing fixture 7 used in this embodiment enables the tripod 5 to be clamped on the box girder template, and the positioning main board 1 extends above the box girder frame. A plurality of fixing tubes 3 are distributed in an array on the positioning main board 1, and the inner holes of the plurality of fixing tubes 3 pass through the positioning main board 1. The columns of the embedded parts are passed through the fixing tubes 3 to fix their positions, thereby ensuring the position accuracy of the embedded parts. The surface of the columns of the embedded parts is threaded for installing the contact network, such as Figure 3 As shown, two groups of columns are symmetrically distributed on both sides of the embedded plate, and the columns on one side are positioned by the fixing tube 3 to determine the position of the embedded part.

[0025] The plurality of fixing tubes 3 are connected by the positioning ribs 2 , which increases the overall structural strength of the plurality of fixing tubes 3 and prevents the fixing tubes 3 from being skewed.

[0026] In this embodiment, a connecting plate 401 is vertically provided on the top of the vertical plate 4, and the connecting plate 401 is connected to the positioning main plate 1 by bolts 8, so that the vertical plate 4 and the positioning main plate 1 are detachable, and a movable groove 402 is vertically opened on the connecting plate 401, and a mounting bolt 8 is passed through the positioning main plate 1, and the bottom of the mounting bolt 8 passes through the movable groove 402 and is fixed by a nut. The setting of the movable groove 402 makes the position of the positioning main plate 1 relative to the vertical plate 4 adjustable, and the position between the positioning main plate 1 and the vertical plate 4 can be confirmed in advance according to the position of the contact network embedded parts in the actual box girder prefabricated parts to avoid the size change of the box girder template frame plate affecting the positioning.

[0027] A first reinforcing rib 6 is fixedly provided between the vertical plate 4 and the connecting plate 401, and a second reinforcing rib 9 is fixedly provided between the vertical plate 4 and the foot frame 5. The first reinforcing rib 6 and the second reinforcing rib 9 increase the overall structural strength of the tooling, prevent the tooling from being deformed due to frequent use, and the reusable tooling reduces the construction cost. The bottom end of the vertical plate 4 is lower than the bottom surface of the foot frame 5, so that the bottom of the vertical plate 4 can be confined to the inner side of the box beam formwork frame, and the positioning is more accurate.

[0028] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A positioning tool for embedded parts of prefabricated box girder contact network foundation, characterized by: The invention comprises a positioning main board (1), one end of the positioning main board (1) is vertically connected to a vertical board (4), the bottom of the vertical board (4) is vertically connected to a tripod (5), the positioning main board (1), the vertical board (4) and the tripod (5) form a stepped shape as a whole, and a plurality of fixing cylinders (3) are arranged in an array on the positioning main board (1), and the inner holes of the plurality of fixing cylinders (3) pass through the positioning main board (1).

2. The prefabricated box girder catenary foundation embedded parts positioning tool as claimed in claim 1, characterized in that: The plurality of fixed cylinders (3) are connected via positioning edges (2).

3. The prefabricated box girder catenary foundation embedded parts positioning tool as claimed in claim 1, characterized in that: A connecting plate (401) is vertically provided on the top of the vertical plate (4), and the connecting plate (401) is connected to the positioning main plate (1) via mounting bolts (8).

4. The prefabricated box girder catenary foundation embedded parts positioning tool as claimed in claim 3, characterized in that: A movable groove (402) is vertically provided on the connecting plate (401), a bolt (8) is passed through the positioning main plate (1), and the bottom of the bolt (8) passes through the movable groove (402) and is fixed by a nut.

5. The prefabricated box girder catenary foundation embedded parts positioning tool as claimed in claim 3, characterized in that: A first reinforcing rib (6) is fixedly provided between the vertical plate (4) and the connecting plate (401).

6. The prefabricated box girder catenary foundation embedded parts positioning tool as claimed in claim 1, characterized in that: A second reinforcing rib (9) is fixedly provided between the vertical plate (4) and the tripod (5), and the bottom end of the vertical plate (4) is lower than the bottom surface of the tripod (5).

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