Fixing structure for additionally welding steel beam and connecting lug plate

Abstract

The utility model belongs to the technical field of building and steel structure engineering, and particularly relates to a steel beam and connecting lug plate welding fixing structure which comprises a first steel beam and a second steel beam, the first steel beam and the second steel beam are each provided with a fixing hole and a first threaded hole, and two first lug plates are arranged at the connecting position of the first steel beam and the second steel beam. Second threaded holes corresponding to the first threaded holes in position are formed in the two first lug plates, fixing bolts are arranged on the second threaded holes and the first threaded holes, multiple sets of locking holes are formed in the fixing bolts, hollow shells are arranged on the two sides of each first lug plate, and elastic assemblies are arranged in the hollow shells; l-shaped fixing rods and locking rods are arranged on the elastic assemblies, the L-shaped fixing rods are inserted into the fixing holes, and the locking rods are inserted into the locking holes. According to the device, the connecting and fixing effects can be improved, meanwhile, the phenomenon that the fixing bolts fall off due to vibration is effectively prevented, and the connecting and fixing effects are further improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of construction and steel structure engineering, and particularly relates to a fixed structure for welding additional connection ear plates to steel beams. Background Technique

[0002] In today's construction and steel structure engineering fields, as an important load-bearing member, the stable and reliable connection method of steel beams is crucial for the safety and stability of the overall structure. With the rapid development of the construction industry, architectural designs are constantly pursuing innovative and complex structural forms, and at the same time, the requirements for structural performance are becoming increasingly stringent. Under such a development trend, the defects and deficiencies of traditional steel beam connection methods are gradually becoming prominent.

[0003] In traditional steel beam connection methods, welding connection and bolt connection are generally used. Although welding connection can provide relatively high connection strength in the initial stage, it also has a series of problems that cannot be ignored. The high temperature generated during the welding process will cause thermal effects on the material of the steel beam, resulting in a decrease in the strength and toughness of local areas of the steel beam. This not only increases the possibility of cracks but also may cause serious safety hazards such as brittle fracture. Moreover, the welding quality depends to a large extent on the technical level and experience of the operator, and it is inevitable to generate minor defects during the welding process. These defects may gradually expand during long-term use, having a negative impact on the reliability of the connection. In addition, after the welding connection is completed, the subsequent disassembly and maintenance work are more difficult, which is not conducive to the transformation and maintenance of the structure.

[0004] Bolt connection is relatively simple during the installation process, but it has obvious limitations. During long-term use, especially when the steel beam is subjected to frequent vibration, impact, and uneven loads, the friction force between the bolt and the threaded hole will inevitably gradually decrease. This change is likely to cause the bolt to loosen, thereby weakening the connection strength. Bolt loosening may also cause deformation of the structure, changing the force distribution of the steel beam, and thus threatening the stability of the entire structure. In addition, the load-bearing capacity of bolt connection has certain limitations. For large-scale and heavy-load structures, bolt connection often cannot provide sufficient fastening force and is difficult to meet the requirements of high-strength connection.

[0005] Therefore, we propose a fixed structure for welding additional connection ear plates to steel beams. This device can not only improve the connection and fixation effect but also effectively prevent the fixed bolts from falling off due to vibration, further enhancing the connection and fixation effect. Content of the Utility Model

[0006] The purpose of this utility model is to provide a fixed structure for welding additional connection ear plates to steel beams. This device can not only improve the connection and fixation effect but also effectively prevent the fixed bolts from falling off due to vibration, further enhancing the connection and fixation effect.

[0007] The technical solution adopted by this utility model is as follows:

[0008] A fixed structure for welding a steel beam and a connecting ear plate, comprising a first steel beam and a second steel beam. Both the first steel beam and the second steel beam are provided with fixing holes and first threaded holes. And at the connection of the first steel beam and the second steel beam, two first ear plates are provided. Two second threaded holes corresponding to the positions of the first threaded holes are provided on the two first ear plates. Fixing bolts are provided on the second threaded holes and the first threaded holes. Multiple locking holes are provided on the fixing bolts. And on both sides of each first ear plate, a hollow shell is provided. An elastic component is provided inside the hollow shell. An L-shaped fixing rod and a locking rod are provided on the elastic component. The L-shaped fixing rod is inserted into the fixing hole, and the locking rod is inserted into the locking hole.

[0009] Further, the fixing hole and the L-shaped fixing rod are matched.

[0010] Further, the locking holes are arranged in an array on the rotating disc of the fixing bolt, and the multiple locking holes are all interconnected.

[0011] Further, the locking rod and the locking hole are matched.

[0012] Further, the elastic component includes a fixing shaft arranged inside the hollow shell. Two first sliders and a spring are sleeved on the fixing shaft. The spring is arranged between the two first sliders. And the L-shaped fixing rod and the locking rod are provided on each first slider.

[0013] Further, a first sliding groove and a second sliding groove are provided on the hollow shell. The L-shaped fixing rod is slidably arranged inside the first sliding groove, and the locking rod is slidably arranged inside the second sliding groove.

[0014] The technical effect obtained by this utility model is as follows:

[0015] First, when connecting, align the first steel beam and the second steel beam. Then pull the two L-shaped fixing rods. The two L-shaped fixing rods are compressed through the elastic component, and at the same time drive the locking rods to move relatively. Then align the center part of the first ear plate with the connection gap between the first steel beam and the second steel beam for installation. After installation, pass the fixing bolt through the first threaded hole and the second threaded hole to connect and fix the first ear plate, the first steel beam and the second steel beam. Then release the L-shaped fixing rod. Through the elastic force of the elastic component, the L-shaped fixing rod is fixed inside the fixing hole, improving the fixing effect. At the same time, the locking rod enters the locking hole, thus effectively preventing the fixing bolt from falling off due to vibration and improving the connection and fixing effect. Description of the Drawings

[0016] Figure 1 is a schematic structural view of the whole of the present utility model;

[0017] Figure 2 is an exploded view of the present utility model;

[0018] Figure 3 is a schematic structural view of the first ear plate of the present utility model;

[0019] Figure 4 is a schematic structural view of the elastic component of the present utility model.

[0020] In the drawings, the list of components represented by each reference numeral is as follows:

[0021] 1. First steel beam; 2. Second steel beam; 3. Fixing hole; 4. First threaded hole; 5. First ear plate; 6. Second threaded hole; 7. Fixing bolt; 8. Locking hole; 9. Hollow housing; 10. L-shaped fixing rod; 11. Locking rod; 12. Fixing shaft; 13. First slider; 14. Spring; 15. First chute; 16. Second chute. Detailed Description of the Invention

[0022] In order to make the purpose and advantages of the present utility model clearer, the present utility model will be specifically described below in conjunction with the embodiments. It should be understood that the following text only describes one or several specific implementation manners of the present utility model, and does not strictly limit the scope of protection of the specific claims of the present utility model.

[0023] As Figures 1-4 shown, the technical solution adopted by the present utility model is specifically as follows: A fixed structure for welding a steel beam and a connecting ear plate, including a first steel beam 1 and a second steel beam 2. Fixing holes 3 and first threaded holes 4 are provided on both the first steel beam 1 and the second steel beam 2. Two first ear plates 5 are provided at the connection of the first steel beam 1 and the second steel beam 2. Second threaded holes 6 corresponding to the positions of the first threaded holes 4 are provided on the two first ear plates 5. Fixing bolts 7 are provided on the second threaded holes 6 and the first threaded holes 4. Multiple groups of locking holes 8 are provided on the fixing bolts 7. Hollow housings 9 are provided on both sides of each first ear plate 5. An elastic component is provided inside the hollow housing 9. An L-shaped fixing rod 10 and a locking rod 11 are provided on the elastic component. The L-shaped fixing rod 10 is inserted into the fixing hole 3, and the locking rod 11 is inserted into the locking hole 8.

[0024] Its working principle is as follows: First, when making a connection, align the first steel beam 1 and the second steel beam 2. Then, pull the two L-shaped fixing rods 10. The two L-shaped fixing rods 10 are compressed by the elastic component, and at the same time, drive the locking rod 11 to move relatively. Then, align the center part of the first ear plate 5 with the connection gap between the first steel beam 1 and the second steel beam 2 for installation. After installation, pass the fixing bolt 7 through the first threaded hole 4 and the second threaded hole 6 to connect and fix the first ear plate 5, the first steel beam 1 and the second steel beam 2. Then, release the L-shaped fixing rod 10, and through the elastic force of the elastic component, fix the L-shaped fixing rod 10 inside the fixing hole 3 to improve the fixing effect. At the same time, the locking rod 11 enters the locking hole 8, thus effectively preventing the fixing bolt 7 from falling off due to vibration and improving the connection and fixing effect.

[0025] Among them, both the first steel beam 1 and the second steel beam 2 are I-beams in real life. Since they have two sides, two first ear plates 5 are required for fixing during the fixing process.

[0026] At the same time, the fixing hole 3 and the L-shaped fixing rod 10 are matched. Here, the meaning of being matched is that their positions correspond to each other, and the L-shaped fixing rod 10 can enter the fixing hole 3 without shaking, improving the fixing effect.

[0027] Furthermore, the L-shaped fixing rod 10 is made of high-strength materials, such as stainless steel, etc. Such a setting makes it have a very high strength and will not break, increasing its service life.

[0028] The locking holes 8 are arranged in an array on the rotating disk of the fixing bolt 7, and the multiple locking holes 8 are all interconnected. The locking rod 11 enters any one of the interconnected locking holes 8, effectively preventing the fixing bolt 7 from falling off due to vibration and enhancing the connection stability. Due to the design of the array of locking holes 8, the locking rod 11 can be locked at multiple positions, further improving the reliability of the connection.

[0029] The locking rod 11 is matched with the locking hole 8. Here, the meaning of being matched is that the locking rod 11 can enter the locking hole 8 and at the same time will not shake.

[0030] The locking rod 11 is made of high-strength materials, such as stainless steel, etc. Such a setting makes it have a very high strength and will not break, increasing its service life.

[0031] As Figure 4 shown, the elastic component includes a fixed shaft 12 arranged inside the hollow shell 9. Two first sliders 13 and a spring 14 are sleeved on the fixed shaft 12. A spring 14 is arranged between the two first sliders 13, and an L-shaped fixing rod 10 and a locking rod 11 are arranged on each first slider 13.

[0032] Pull the two L-shaped fixing rods 10 to drive the corresponding first sliders 13 to move on the fixed shaft 12 and compress the first spring 14. At the same time, the locking rod 11 will also move relatively with the movement of the first slider 13. After installing the first ear plate 5, release the L-shaped fixing rod 10, and use the elastic force of the spring 14 to make the first slider 13 drive the L-shaped fixing rod 10 into the fixing hole 3 to improve the fixing effect. At the same time, the locking rod 11 will also move into any one of the interconnected locking holes 8 on the rotating disc of the fixing bolt 7 with the movement of the first slider 13, effectively preventing the fixing bolt 7 from falling off due to vibration and enhancing the connection stability.

[0033] As Figure 3 shown, the hollow housing 9 is provided with a first chute 15 and a second chute 16. The L-shaped fixing rod 10 is slidably arranged inside the first chute 15, and the locking rod 11 is slidably arranged inside the second chute 16.

[0034] Through the settings of the first chute 15 and the second chute 16, the L-shaped fixing rod 10 and the locking rod 11 can be moved.

[0035] The working principle of this utility model is as follows: First, when making a connection, align the first steel beam 1 and the second steel beam 2, then pull the two L-shaped fixing rods 10. The two L-shaped fixing rods 10 are compressed through the elastic component, and at the same time, drive the locking rod 11 to move relatively. Then, align the center part of the first ear plate 5 with the connection gap between the first steel beam 1 and the second steel beam 2 for installation. After installation, make the fixing bolt 7 pass through the first threaded hole 4 and the second threaded hole 6 to connect and fix the first ear plate 5, the first steel beam 1 and the second steel beam 2. Then release the L-shaped fixing rod 10, and use the elastic force of the elastic component to fix the L-shaped fixing rod 10 inside the fixing hole 3 to improve the fixing effect. At the same time, the locking rod 11 enters the inside of the locking hole 8, thereby effectively preventing the fixing bolt 7 from falling off due to vibration and improving the connection and fixing effect.

[0036] The above is only the preferred implementation mode of this utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of this utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of this utility model. The structures, devices and operation methods not specifically described and explained in this utility model, unless otherwise specified and limited, are implemented according to the conventional means in this field.

Claims

1. A fixed structure for welding a steel beam and a connecting ear plate, comprising a first steel beam (1) and a second steel beam (2), characterized in that: Both the first steel beam (1) and the second steel beam (2) are provided with fixing holes (3) and first threaded holes (4). At the connection of the first steel beam (1) and the second steel beam (2), two first ear plates (5) are provided. Second threaded holes (6) corresponding to the positions of the first threaded holes (4) are provided on the two first ear plates (5). Fixing bolts (7) are provided on the second threaded holes (6) and the first threaded holes (4). Multiple locking holes (8) are provided on the fixing bolts (7). On both sides of each first ear plate (5), a hollow housing (9) is provided. An elastic component is provided inside the hollow housing (9). An L-shaped fixing rod (10) and a locking rod (11) are provided on the elastic component. The L-shaped fixing rod (10) is inserted into the fixing hole (3), and the locking rod (11) is inserted into the locking hole (8).

2. The fixed structure of welding additional steel beams and connecting lugs according to claim 1, wherein: The fixing hole (3) and the L-shaped fixing rod (10) are matched with each other.

3. The fixed structure of welding additional steel beams and connecting ear plates according to claim 1, characterized in that: The locking holes (8) are arranged in an array on the rotating disc of the fixing bolt (7), and multiple locking holes (8) are all communicated with each other.

4. A fixed structure for welding additional steel beams and connecting lugs according to claim 1, characterized in that: The locking rod (11) is matched with the locking hole (8).

5. The fixed structure of welding additional steel beams and connecting lugs according to claim 1, wherein: The elastic component includes a fixing shaft (12) arranged inside the hollow housing (9). Two first sliders (13) and a spring (14) are sleeved on the fixing shaft (12). The spring (14) is arranged between the two first sliders (13). The L-shaped fixing rod (10) and the locking rod (11) are provided on each first slider (13).

6. The fixed structure of welding additional steel beam and connecting lug according to claim 5, characterized in that: The hollow housing (9) is provided with a first sliding groove (15) and a second sliding groove (16). The L-shaped fixing rod (10) is slidably arranged inside the first sliding groove (15), and the locking rod (11) is slidably arranged inside the second sliding groove (16).

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