Chord member structure of steel truss

Abstract

The utility model discloses a chord member structure of a steel truss, which comprises a chord member main body, the chord member main body is connected with a connecting mechanism used for stably connecting the chord member main body and a vertical web member, the connecting mechanism comprises a positioning plate, a welding plate, a connecting column and a spring, the positioning plate is connected with the end part of the connecting column, and the welding plate is connected with the connecting column. The spring is used for driving the positioning plate to move in the direction close to the chord member body, the welding plate is connected to the end of the chord member body, a positioning groove matched with the positioning plate is formed in the vertical web member, the sliding groove is formed in the chord member body, the guide block is connected to the sliding groove in a sliding mode, and the arc-shaped face is arranged on the guide block. The guide block is connected to the end of the connecting column, and the arc-shaped face is arranged on the positioning plate. According to the utility model, the chord member main body can be preliminarily limited, the chord member main body and the vertical web member can be conveniently welded, meanwhile, the welding plate is tightly pressed on the vertical web member, the welding area is large, the welding seam is long, and the stability of welding connection is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of trusses, in particular to a chord structure of a steel truss. Background Art

[0002] A truss is a structural form typically composed of beams and braces, forming a stable three-dimensional structure. Commonly used in buildings, bridges, stage sets, tower cranes, and other fields, trusses are designed to provide maximum structural strength and stability while minimizing weight. Overall, trusses are a flexible, strong, and adaptable structural form, widely used in various engineering and construction projects. The chords are the members at the top and bottom of the truss. The top member is called the upper chord, and the bottom member is called the lower chord.

[0003] In the prior art, some chords and vertical webs are fixed by welding. Since the chord and the vertical web are two separate entities, if they are directly welded, they are easy to rotate, which makes it inconvenient for the welder to fix them and also affects the quality of the welding. If they are fixed manually, the welding machine will generate a lot of heat when working, and then the chord and the vertical web are fixed manually, which poses certain safety hazards. Utility Model Content

[0004] The purpose of the utility model is to provide a chord structure of a steel truss, which has the advantages of being able to achieve preliminary limiting of the chord body, facilitating welding operations between the chord body and the vertical webs, ensuring the stability of the welded connection, and solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a chord structure of a steel truss, comprising a chord body, wherein the chord body is connected to a connecting mechanism for firmly connecting the chord body and the vertical web, the connecting mechanism comprising a positioning plate, a welding plate, a connecting column, and a spring, the positioning plate being connected to the end of the connecting column, the spring being used to drive the positioning plate to move toward the direction close to the chord body, the welding plate being connected to the end of the chord body, and a positioning groove matching the positioning plate is provided in the vertical web.

[0006] Preferably, the connecting mechanism further includes a slide groove, a guide block, and an arcuate surface. The slide groove is arranged in the chord rod body, the guide block is slidably connected to the slide groove, and the guide block is connected to the end of the connecting column, and the arcuate surface is arranged on the positioning plate.

[0007] Preferably, a spring groove is provided in the chord rod body, the spring is located in the spring groove, and both ends of the spring are connected to the guide block and the chord rod body.

[0008] Preferably, the positioning plate is an oblong plate-shaped structure.

[0009] Preferably, the vertical web is provided with a guide hole and a connecting groove, the guide hole matches the connecting column, and the guide hole is connected to the connecting groove, a positioning block is connected in the connecting groove, and the positioning groove is provided on the side of the positioning block.

[0010] Preferably, the positioning block is provided with an inclined surface.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is provided with a connecting mechanism, which applies thrust to the chord rod body, pushes the positioning plate into the connecting groove, and the positioning plate slides relative to the inclined surface, so that the positioning plate can be gradually lifted, synchronously driving the connecting column to move, and the spring is gradually stretched until the positioning plate is connected to the positioning groove, which can realize the initial limiting of the chord rod body, facilitate the welding operation of the chord rod body and the vertical web, and at the same time the welding plate is pressed against the vertical web, the welding area is large, the weld is long, ensuring the stability of the welding connection, and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 for Figure 1 A local map of

[0014] Figure 3 This is a schematic diagram of the connecting mechanism structure of the utility model;

[0015] Figure 4 This is a schematic diagram of the internal structure of the connecting groove of the present utility model.

[0016] In the figure: 1. chord body; 2. positioning plate; 3. vertical web; 4. connecting groove; 5. welding plate; 6. connecting column; 7. arc surface; 8. guide hole; 9. positioning block; 10. inclined surface; 11. slide groove; 12. guide block; 13. spring; 14. spring groove; 15. positioning groove. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figures 1 to 4The present invention provides a chord structure for a steel truss, comprising a chord body 1 connected to a connecting mechanism for firmly connecting the chord body 1 to vertical web members 3. The connecting mechanism comprises a positioning plate 2, a welding plate 5, a connecting column 6, and a spring 13. The positioning plate 2 is connected to the end of the connecting column 6 and has an oblong plate-shaped structure. The spring 13 is used to drive the positioning plate 2 toward the chord body 1. The welding plate 5 is connected to the end of the chord body 1. The vertical web members 3 are provided with a positioning groove 15 that matches the positioning plate 2.

[0019] When the positioning plate 2 is docked with the positioning groove 15, the chord body 1 is initially limited. At this time, the spring 13 is in an extended state, pressing the welding plate 5 against the vertical web 3. The welding plate 5 is then connected to the chord body 1 by welding, thereby improving the stability of the connection between the chord body 1 and the vertical web 3. Due to the installation of the welding plate 5, the welding area is large and the weld is long, ensuring the stability of the welded connection.

[0020] The connecting mechanism also includes a slide groove 11, a guide block 12, and an arcuate surface 7. The slide groove 11 is provided in the chord member body 1, and the guide block 12 is slidably connected to the slide groove 11. The guide block 12 is also connected to the end of the connecting column 6, and the arcuate surface 7 is provided on the positioning plate 2. When operating the chord member body 1, a thrust is applied to the chord member body 1 to insert the positioning plate 2 into the connecting groove 4. The arcuate surface 7 slides relative to the inclined surface 10, gradually lifting the positioning plate 2, causing the connecting column 6 and the guide block 12 to move synchronously. The spring 13 is gradually stretched until the positioning plate 2 is connected to the positioning groove 15. This achieves preliminary positioning of the chord member body 1, facilitating subsequent welding work. At this time, the welding plate 5 is in close contact with the vertical web member 3.

[0021] The guide block 12 can slide on the slide groove 11 to provide good guidance for the connecting column 6 and the positioning plate 2 , so that the positioning plate 2 is in a vertical state, which facilitates accurate docking with the positioning groove 15 .

[0022] A spring slot 14 is provided in the chord main body 1 , and the spring 13 is located in the spring slot 14 , and both ends of the spring 13 are connected to the guide block 12 and the chord main body 1 .

[0023] The vertical web 3 is provided with a guide hole 8 and a connecting groove 4. The guide hole 8 matches the connecting column 6 and is connected to the connecting groove 4. A positioning block 9 is connected to the connecting groove 4. The positioning groove 15 is provided on the side of the positioning block 9.

[0024] The positioning block 9 is provided with an inclined surface 10 , which is a smooth surface and can reduce the contact friction with the positioning plate 2 .

[0025] Working Principle: When installing the chord member 1, align the positioning plate 2 with the connecting groove 4. Then, apply a thrust to the chord member 1 to insert the positioning plate 2 into the connecting groove 4. The connecting column 6 slides within the guide hole 8, while the positioning plate 2 slides relative to the inclined surface 10, gradually lifting the positioning plate 2. This simultaneously drives the movement of the connecting column 6 and the guide block 12. The spring 13 is gradually stretched until the positioning plate 2 connects with the positioning groove 15 of the positioning block 9. This achieves the initial position limit for the chord member 1 and facilitates subsequent welding operations. The welding plate 5 is pressed tightly against the vertical web 3, resulting in a large welding area and a long weld, ensuring the stability of the welded connection and enhancing its practicality.

[0026] 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 chord structure of a steel truss, comprising a chord body (1), characterized in that: The chord rod body (1) is connected to a connecting mechanism for firmly connecting the chord rod body (1) and the vertical web (3), wherein the connecting mechanism comprises a positioning plate (2), a welding plate (5), a connecting column (6), and a spring (13). The positioning plate (2) is connected to the end of the connecting column (6), and the spring (13) is used to drive the positioning plate (2) to move toward the chord rod body (1). The welding plate (5) is connected to the end of the chord rod body (1), and a positioning groove (15) matching the positioning plate (2) is provided in the vertical web (3).

2. The chord structure of a steel truss according to claim 1, characterized in that: The connecting mechanism further comprises a slide groove (11), a guide block (12), and an arcuate surface (7); the slide groove (11) is arranged in the chord rod body (1); the guide block (12) is slidably connected to the slide groove (11); the guide block (12) is connected to the end of the connecting column (6); and the arcuate surface (7) is arranged on the positioning plate (2).

3. The chord structure of a steel truss according to claim 2, characterized in that: A spring groove (14) is provided in the chord rod body (1), the spring (13) is located in the spring groove (14), and both ends of the spring (13) are connected to the guide block (12) and the chord rod body (1).

4. The chord structure of a steel truss according to claim 1, characterized in that: The positioning plate (2) is an oblong plate-shaped structure.

5. The chord structure of a steel truss according to claim 1, characterized in that: The vertical web (3) is provided with a guide hole (8) and a connecting groove (4); the guide hole (8) matches the connecting column (6), and the guide hole (8) is connected to the connecting groove (4); a positioning block (9) is connected in the connecting groove (4), and the positioning groove (15) is provided on the side of the positioning block (9).

6. The chord structure of a steel truss according to claim 5, characterized in that: The positioning block (9) is provided with an inclined surface (10).

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