Tunnel steel arch connecting plate positioning device

Abstract

The utility model discloses a tunnel steel arch connecting plate positioning device which comprises an end plate and a back supporting plate, the end plate is provided with a rectangular positioning opening matched with the maximum outer contour size of the end face of I-shaped steel, and the lower portion of the positioning opening completely covers the bottom of the end plate to form a door-shaped end plate. The back supporting plate is connected to the back of the end plate, the bottom face of the back supporting plate is flush with the upper edge of the positioning opening, the included angle between the back supporting plate and the end plate is consistent with the included angle between the upper surface of an upper flange plate of the I-shaped steel and the end face of the upper flange plate of the I-shaped steel, and a plurality of positioning columns perpendicular to the surface of the end plate are arranged on the end plate. When the end plate is clamped on the I-shaped steel through the positioning opening, the axes of the positioning columns on the end plate and the axes of the bolt holes in the connecting plate coincide in a one-to-one mode. The positioning device is clamped on the I-shaped steel to position and support the connecting plate, so that the I-shaped steel and the connecting plate are conveniently and accurately welded, the conditions of welding deviation and the like are avoided, the positioning device is convenient to use, and the welding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel arch frame connecting plate welding, in particular to a tunnel steel arch frame connecting plate positioning device. Background Art

[0002] During the tunnel construction process, steel arch frames are required to complete the initial support. The firmness of the steel arch frames is directly related to the overall quality of the tunnel construction. The steel arch frames are generally processed and manufactured on the construction site. According to the outline size of the tunnel, multiple sections of I-beams 100 need to be connected in sequence to form an arch frame. The ends of two adjacent I-beams 100 are connected and fixed by connecting plates 200. The connecting plates 200 need to be pre-welded to the ends of the I-beams 100. Figure 5 Currently, since the welding of the connecting plates 200 is mainly done manually, not only is the work efficiency low and the labor intensity high, but the welding quality also depends mainly on the proficiency of the operators. Connecting plates processed and manufactured by unskilled operators may have errors in the welding angle and the position of the reserved bolt holes 300, resulting in unstable quality. During on-site installation, problems such as the bolt holes 300 of the two connecting plates 200 not being aligned and the arch frame position and verticality being inaccurate may occur. Ultimately, this results in uneven stress on the steel arch frame, posing a serious safety hazard and making it difficult to meet tunnel construction quality requirements. Utility Model Content

[0003] In view of the problems existing in the prior art, the purpose of the present invention is to provide a tunnel steel arch connecting plate positioning device.

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] A tunnel steel arch frame connecting plate positioning device includes an end plate and a back support plate, wherein the end plate is provided with a rectangular positioning hole that matches the maximum outer contour size of the end face of the I-beam, and the lower part of the positioning hole completely covers the bottom of the end plate to form a door-shaped end plate, the back support plate is connected to the back of the end plate and the bottom surface of the back support plate is flush with the upper edge of the positioning hole, the angle between the back support plate and the end plate is consistent with the angle between the upper surface of the upper flange plate of the I-beam and its end face, and a plurality of positioning columns perpendicular to the surface of the end plate are provided on the end plate. When the end plate is clamped on the I-beam through the positioning hole, the axis centers of the plurality of positioning columns on the end plate coincide with the axis centers of the plurality of bolt holes on the connecting plate.

[0006] Preferably, the back support plate has the same curvature as the upper flange plate of the I-beam.

[0007] Preferably, a first rib is provided at the connection between the back support plate and the end plate.

[0008] Preferably, the width of the rectangular positioning opening is 1-2 mm greater than the width of the flange plate of the I-beam.

[0009] Preferably, a handle is provided on the top of the back support plate.

[0010] Preferably, a rear end plate is provided at one end of the back support plate away from the end plate, the lower edge of the rear end plate is flush with the upper surface of the upper flange plate of the I-beam and extends downward at both sides of the upper surface of the upper flange plate of the I-beam.

[0011] Preferably, a second rib is provided at the connection between the back support plate and the rear end plate.

[0012] Preferably, the end of the positioning column is provided with an oblique chamfer.

[0013] Beneficial effects of the utility model:

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] The positioning device of the utility model is clamped on the I-beam to form a positioning support for the connecting plate, which is convenient for accurate welding of the I-beam and the connecting plate and avoids the occurrence of welding deviation and the like. The utility model has a simple structure, is easy to use, and improves welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the utility model connected to an I-beam;

[0018] Figure 3 、 4 This is a schematic diagram of the use state of the utility model;

[0019] Figure 5 Schematic diagram of the structure of I-beam and connecting plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of this utility model, it should be noted that the terms "upper / lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating positions or relationships, are based on the positions or 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 orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "set / mounted," "sleeved," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0023] See also Figure 1-4 The utility model provides a technical solution: a tunnel steel arch frame connecting plate positioning device, comprising an end plate 1 and a back support plate 2, the end plate 1 is provided with a rectangular positioning hole 11 that matches the maximum outer contour size of the end face of the I-beam 100, the lower part of the positioning hole 11 completely covers the bottom of the end plate 1 to form a door-shaped end plate 1, the back support plate 2 is connected to the back of the end plate 1 and the bottom surface of the back support plate 2 is flush with the upper edge of the positioning hole 11, the angle between the back support plate 2 and the end plate 1 is consistent with the angle between the upper surface of the upper flange plate of the I-beam 100 and its end face, the end plate 1 is provided with a plurality of positioning columns 3 perpendicular to the surface of the end plate 1, and when the end plate 1 is clamped on the I-beam 100 through the positioning hole 11, the axis centers of the plurality of positioning columns 3 on the end plate 1 coincide with the axis centers of the plurality of bolt holes 300 on the connecting plate 200.

[0024] When in use, place the positioning port 11 of the end plate 1 across the flange plate of the I-beam 100, move the positioning device downward from the top until the back support plate 2 is in contact with the upper surface of the upper flange plate of the I-beam 100, move the end plate 1 forward until it is flush with the end face of the I-beam 100, align the several bolt holes 300 on the connecting plate 200 with the several positioning columns 3 on the end plate 1 one by one, and then insert them until they are in contact with the end face of the I-beam 100, thus completing the positioning of the connecting plate. After spot welding the I-beam 100 and the connecting plate 200, the positioning device can be removed to fully weld the I-beam 100 and the connecting plate 200.

[0025] The angle between the back support plate 2 and the end plate 1 of the present invention is consistent with the angle between the upper surface of the upper flange plate of the I-beam 100 and its end face. Therefore, when the back support plate 2 is attached to the upper surface of the upper flange plate of the I-beam 100, the end plate 1 and the end face of the I-beam 100 are parallel to each other, and the back support plate 2 is in opposite directions to the positioning column 3, forming a counterweight to prevent the end plate 1 from tilting forward.

[0026] The positioning device of the present invention is clamped on the I-beam 100 to form a positioning support for the connecting plate 200, which is convenient for accurate welding of the I-beam 100 and the connecting plate 200 and avoids welding deviation. The present invention has a simple structure, is easy to use, and improves welding efficiency.

[0027] Furthermore, the back support plate 2 and the upper flange plate of the I-beam 100 have the same curvature, ensuring that the back support plate 2 and the upper flange plate of the I-beam 100 can fit tightly together to avoid shaking.

[0028] Furthermore, a first rib 4 is provided at the connection between the back support plate 2 and the end plate 1 , thereby improving the connection strength between the back support plate 2 and the end plate 1 .

[0029] Furthermore, the width of the rectangular positioning opening 11 is 1-2 mm greater than the width of the flange plate of the I-beam 100 , making it easier to install and remove the positioning device from the I-beam 100 .

[0030] Furthermore, a handle 5 is provided on the top of the back support plate 2 to facilitate the movement of the positioning device.

[0031] Furthermore, a rear end plate 6 is provided at one end of the back support plate 2 away from the end plate 1. The lower edge of the rear end plate 6 is flush with the upper surface of the upper flange plate of the I-beam 100 and extends downward at both sides of the upper surface of the upper flange plate of the I-beam 100, thereby preventing the positioning device from twisting at the end plate 1 and ensuring the accuracy of the positioning device.

[0032] Furthermore, a second rib 7 is provided at the connection between the back support plate 2 and the rear end plate 6 , thereby improving the connection strength between the back support plate 2 and the rear end plate 6 .

[0033] Furthermore, the end of the positioning column 3 is provided with an oblique chamfer 8 to facilitate alignment and insertion of the bolt hole 300 of the connecting plate 200 with the positioning column 3 .

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only 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 "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tunnel steel arch connecting plate positioning device, characterized in that: The invention comprises an end plate (1) and a back support plate (2), wherein a rectangular positioning opening (11) matching the maximum outer contour size of the end face of the I-beam (100) is provided on the end plate (1), the lower part of the positioning opening (11) completely covers the bottom of the end plate (1) to form a door-shaped end plate (1), the back support plate (2) is connected to the back of the end plate (1) and the bottom surface of the back support plate (2) is flush with the upper edge of the positioning opening (11), the angle between the back support plate (2) and the end plate (1) is consistent with the angle between the upper surface of the upper flange plate of the I-beam (100) and its end face, and a plurality of positioning columns (3) perpendicular to the surface of the end plate (1) are provided on the end plate (1), and when the end plate (1) is clamped on the I-beam (100) through the positioning opening (11), the axis centers of the plurality of positioning columns (3) on the end plate (1) coincide with the axis centers of the plurality of bolt holes (300) on the connecting plate (200).

2. A tunnel steel arch connecting plate positioning device according to claim 1, characterized in that: The back support plate (2) has the same curvature as the upper flange plate of the I-beam (100).

3. The tunnel steel arch connecting plate positioning device according to claim 1, characterized in that: A first rib (4) is provided at the connection between the back support plate (2) and the end plate (1).

4. The tunnel steel arch connecting plate positioning device according to claim 1, characterized in that: The width of the rectangular positioning opening (11) is 1-2 mm greater than the width of the flange plate of the I-beam (100).

5. The tunnel steel arch connecting plate positioning device according to claim 1, characterized in that: A handle (5) is provided on the top of the back support plate (2).

6. The tunnel steel arch connection plate positioning device according to claim 1, characterized in that: A rear end plate (6) is provided at one end of the back support plate (2) away from the end plate (1), wherein the lower edge of the rear end plate (6) is flush with the upper surface of the upper flange plate of the I-beam (100) and extends downwardly at positions on both sides of the upper surface of the upper flange plate of the I-beam (100).

7. The tunnel steel arch connecting plate positioning device according to claim 6, characterized in that: A second rib (7) is provided at the connection between the back support plate (2) and the rear end plate (6).

8. The tunnel steel arch connecting plate positioning device according to claim 1, characterized in that: The end of the positioning column (3) is provided with an oblique chamfer (8).

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