A connecting structure of a steel structure roof purlin and a truss

Abstract

The utility model relates to the connecting technical field of purline and truss, concretely is a kind of steel structure roof purline and the connecting structure of truss, including main body steel structure, the middle part of main body steel structure is embedded with two secondary purlines;A pair of installation groove is opened in the both sides of main body steel structure and with the size of secondary purline is matched;The inner wall of the both sides of secondary purline is equipped with the slide bar of one end and extends to the outside of secondary purline, the outer end of slide bar is fixed with abutment plate, the bottom end of a pair of abutment plate is inwardly inclined, the inside surface of main body steel structure is fixed with the installation plate of the abutment of abutment plate, and it is connected between both sides slide bar by elastic expansion piece. The whole connecting process is simple and fast, and the main body steel structure and secondary purline are more stable, and the main body steel structure and secondary purline are connected by internal inlaying, so that the stress requirement of purline connection can be guaranteed, and the connection between structure in indoor space visual range can be clean and neat.

Description

Technical Field

[0001] This utility model relates to the field of purlin and truss connection technology, specifically a connection structure for steel roof purlins and trusses. Background Technology

[0002] Purlins, also known as purlins or trusses, are horizontal roof beams perpendicular to the roof trusses or rafters, used to support the rafters or roofing materials. In steel structure roofs, the connection between purlins and trusses is a key node to ensure overall stability and load transfer.

[0003] In existing steel structure roof designs, the connection between purlins and trusses typically employs a relatively traditional installation method: during construction, additional bolts are welded onto the truss to secure supports (such as angle steel supports or T-shaped steel plates), and then two purlins are placed side-by-side on the supports. While this connection method can meet basic load-bearing requirements, the exposed supports, bolt heads, and purlin overlap gaps can disrupt the overall aesthetic lines of the building. This is especially true in exposed steel structures (such as industrial-style buildings and exhibition halls), where messy joints can appear rough. Therefore, a new connection structure for steel structure roof purlins and trusses is proposed to address these issues. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a connection structure for steel roof purlins and trusses. The steel truss and purlins are connected by an internal inlay method, which can ensure the stress requirements of the purlin connection and also ensure a clean and tidy connection between structures within the visible range of the indoor space.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a connection structure between steel roof purlins and trusses, comprising:

[0006] The main steel structure has two secondary purlins embedded in its middle. The main steel structure and the secondary purlins are connected by an internal embedding method, which can ensure the stress requirements of the purlin connection and also ensure a clean and tidy connection between the structures within the visible range of the indoor space.

[0007] A pair of mounting slots are provided on both sides of the main steel structure and are matched with the size of the secondary purlins, allowing the two sections of secondary purlins to be inserted. This facilitates the positioning of the secondary purlins and ensures that the main steel structure is flush with the secondary purlins after insertion.

[0008] Both sides of the secondary purlin are provided with a sliding rod with one end penetrating through and extending to the outside of the secondary purlin. The outer end of the sliding rod is fixed with an abutment plate. The bottom ends of the pair of abutment plates are inclined inward. The inner side of the main steel structure is fixed with an mounting plate that abuts against the abutment plate. The two sliding rods are connected by an elastic telescopic member. The lower inclined surfaces of the pair of abutment plates will gradually move closer together under the pressure of the mounting plate, causing the elastic telescopic member to be compressed. The abutment plate plays a guiding role. Under the action of the elastic telescopic member, the abutment plate and the mounting plate are tightly fitted.

[0009] Furthermore, the two sides of the embedded end of the secondary purlin are fastened to the main steel structure with bolts, and a pair of abutment plates are tightly attached to the inner side of the corresponding mounting plate to complete the initial fixation. Then, the mounting plate and the abutment plate are connected by bolts to achieve double fixation.

[0010] Furthermore, a positioning plate that fits against the inner side of the main steel structure is fixed to the outer periphery of the embedded end of the secondary purlin. The positioning plate set on the outer periphery of the embedded end of the secondary purlin cooperates with the mounting groove, making the connection position between the secondary purlin and the main steel structure more precise.

[0011] Furthermore, both sides of the embedded end of the secondary purlin have elongated holes for the sliding rod to slide up and down. The inner end of the sliding rod is fixed with a movable plate. The upper ends of the pair of movable plates are both inclined outward. The elastic telescopic member is fixed between the pair of movable plates. The inner top surface of the secondary purlin is fixed with a pair of pressing plates corresponding to the movable plates. The lower ends of the pair of pressing plates are both inclined inward. During the downward movement of the secondary purlin, the bottom inclined surface of the pressing plate presses against the top inclined surface of the movable plate, causing the pair of movable plates to move downward and outward at the same time. Driven by the sliding rod, the pair of abutting plates will follow it downward and outward until the secondary purlin abuts against the bottom wall of the mounting groove. Under the pressing action of the movable plate, the pair of abutting plates fit more tightly against the inner surface of the corresponding mounting plate.

[0012] Furthermore, anti-slip rubber pads are provided on the opposite surfaces of the pair of extrusion plates, which helps to enhance the friction between the abutment plate and the mounting plate, making the connection between the extrusion plate and the mounting plate tighter.

[0013] Furthermore, the elastic telescopic component includes a sleeve rod and a T-shaped movable rod extending into the sleeve rod. A spring is provided between the sleeve rod and the T-shaped movable rod. The two ends of the spring abut against the inner wall of the sleeve rod and the end of the T-shaped movable rod, respectively. A sliding groove is provided in the sleeve rod to slide with the T-shaped movable rod. The head of the T-shaped movable rod slides in the sleeve rod and cannot be dislodged.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The connection structure between the steel roof purlins and trusses is simple and quick to operate during the connection process. The connection between the main steel structure and the secondary purlins is more stable and precise. Furthermore, the main steel structure and the secondary purlins are composed of an internally embedded connection method, which can not only ensure the stress requirements of the purlin connection, but also ensure a clean and tidy connection between the structures within the visible range of the indoor space.

[0016] In this steel roof purlin and truss connection structure, before the secondary purlin is embedded in the mounting groove, the lower inclined surfaces of a pair of abutment plates will gradually move closer together under the pressure of the mounting plate, which also serves as a guide to facilitate the positioning of the secondary purlin's installation position. The positioning plate set on the outer periphery of the embedded end of the secondary purlin cooperates with the mounting groove, making the connection position between the secondary purlin and the main steel structure more precise. After embedding, the main steel structure is flush with the secondary purlin, resulting in a better aesthetic appearance after installation.

[0017] In this steel roof purlin and truss connection structure, during the downward movement of the secondary purlin, the bottom inclined surface of the extrusion plate presses against the top inclined surface of the movable plate, causing a pair of abutment plates to move downward and outward simultaneously. The pair of abutment plates can then tightly fit against the inner surface of the corresponding mounting plate, completing the initial fixation. Then, the mounting plate and the abutment plate are connected by bolts to achieve double fixation, making the connection between the main steel structure and the secondary purlin more stable. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a bottom-view perspective view of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the main steel structure and the purlins of this utility model;

[0021] Figure 4 This is a structural schematic diagram of the elastic telescopic component of this utility model.

[0022] In the diagram: 1. Main steel structure; 2. Secondary purlin; 3. Bolt; 4. Mounting groove; 5. Positioning plate; 6. Sliding rod; 7. Long slot; 8. Abutment plate; 9. Mounting plate; 10. Movable plate; 11. Elastic telescopic component; 111. Sleeve rod; 112. T-shaped movable rod; 113. Spring; 114. Slide groove; 12. Extrusion plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 In this embodiment, a connection structure for a steel roof purlin and truss is provided. The main steel structure 1 has two secondary purlins 2 embedded in its middle. The two sides of the embedded ends of the secondary purlins 2 are fastened to the main steel structure 1 by bolts 3. This connection method is that the main steel structure 1 and the secondary purlins 2 are connected by internal embedding. This can ensure the stress requirements of the purlin connection and also ensure a clean and tidy connection between the structures within the visible range of the indoor space.

[0025] The main steel structure 1 has a pair of mounting grooves 4 on both sides that match the size of the secondary purlins 2, allowing the two sections of the secondary purlins 2 to be inserted. This facilitates the positioning of the secondary purlins 2 and makes the main steel structure 1 and the secondary purlins 2 flush after insertion, resulting in a better aesthetic appearance. The outer periphery of the inserted end of the secondary purlin 2 is fixed with a positioning plate 5 that fits against the inner side of the main steel structure 1. By placing the inserted end of the secondary purlin 2 in the mounting groove 4 and the positioning plate 5 fitting against the inner side of the main steel structure 1, the secondary purlin 2 can be positioned.

[0026] To improve the stability of the connection between the secondary purlin 2 and the main steel structure 1, two pairs of sliding rods 6 are provided on the inner walls of both sides of the secondary purlin 2, with one end penetrating and extending to the outside of the secondary purlin 2. There are elongated holes 7 on both sides of the embedded end of the secondary purlin 2 for the sliding rods 6 to move up and down. The outer ends of each pair of sliding rods 6 are fixed with abutting plates 8. The bottom ends of the pair of abutting plates 8 are inclined inward. The inner side of the main steel structure 1 is fixed with mounting plates 9 that abut against the abutting plates 8. The inner ends of each pair of sliding rods 6 are fixed with movable plates 10. The upper ends of the pair of movable plates 10 are inclined outward. A pair of elastic telescopic members 11 are fixed between the pair of movable plates 10. The inner top surface of the secondary purlin 2 is fixed with a pair of pressing plates 12 corresponding to the movable plates 10. The lower ends of the pair of pressing plates 12 are inclined inward.

[0027] Initially, the elastic telescopic component 11 is in a relaxed state, causing the pair of abutment plates 8 to open, and the slide rod 6 to be at the bottom of the elongated hole 7. The position of the abutment plates 8 will be lower than that of the secondary purlin 2. During installation, first control the embedded end of the secondary purlin 2 to move downward toward the mounting groove 4. The lower inclined surfaces of the pair of abutment plates 8 will be squeezed by the mounting plate 9 and gradually move closer together, compressing the elastic telescopic component 11. The abutment plates 8 act as guides, and the embedded end of the secondary purlin 2 slides into the mounting groove 4 until it is flush with the mounting groove 4. During the downward movement of the secondary purlin 2, the bottom inclined surface of the pressing plate 12 presses against the top inclined surface of the movable plate 10, causing the pair of movable plates 10 to move downward and outward at the same time. Driven by the sliding rod 6, the pair of abutting plates 8 will follow it downward and outward until the secondary purlin 2 abuts against the bottom wall of the mounting groove 4. The pair of abutting plates 8 abut more tightly against the inner side of the corresponding mounting plate 9, thus completing the initial positioning and fastening of the main steel structure 1 and the secondary purlin 2.

[0028] Furthermore, anti-slip rubber pads are provided on the opposite surfaces of the pair of extrusion plates 12, which helps to enhance the friction between the abutment plate 8 and the mounting plate 9, making the connection between the extrusion plate 12 and the mounting plate 9 tighter.

[0029] As a specific structure of an elastic telescopic rod, such as Figure 4 As shown, the elastic telescopic member 11 includes a sleeve rod 111 and a T-shaped movable rod 112 extending into the sleeve rod 111. A spring 113 is provided between the sleeve rod 111 and the T-shaped movable rod 112. The two ends of the spring 113 abut against the inside of the sleeve rod 111 and the end of the T-shaped movable rod 112, respectively. A pair of sliding grooves 114 are provided in the sleeve rod 111 to allow the head of the T-shaped movable rod 112 to slide freely within the sleeve rod 111 and not to come out.

[0030] After the initial positioning and fastening of the main steel structure 1 and the secondary purlin 2 are completed, the mounting plate 9 and the abutment plate 8 are connected by bolts 3, thus completing the installation connection between the main steel structure 1 and the secondary purlin 2. The whole process is simple and quick, and the connection between the main steel structure 1 and the secondary purlin 2 is more stable and more precise.

[0031] In summary, in use, the embedded end of the secondary purlin 2 is first controlled to move downward toward the mounting groove 4. The lower inclined surfaces of the pair of abutment plates 8 are pressed together by the mounting plate 9, causing the elastic telescopic member 11 to be compressed. The abutment plates 8 act as guides, and the embedded end of the secondary purlin 2 slides into the mounting groove 4 until it contacts the bottom wall of the mounting groove 4. During the downward movement of the secondary purlin 2, the bottom inclined surface of the pressing plate 12 presses against the top inclined surface of the movable plate 10, causing the pair of movable plates 10 to move downward and outward at the same time. Driven by the sliding rod 6, the pair of abutment plates 8 will follow it downward and outward until the secondary purlin 2 abuts against the bottom wall of the mounting groove 4, and the pair of abutment plates 8 are tightly attached to the inner surface of the corresponding mounting plate 9. This completes the initial positioning of the main steel structure 1 and the secondary purlin 2. Then, the mounting plate 9 and the abutment plates 8 are connected by bolts 3 and nuts, thus completing the installation connection between the main steel structure 1 and the secondary purlin 2.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connection structure between purlins and trusses in a steel roof structure, characterized in that, include: The main steel structure (1) has two secondary purlins (2) embedded in its middle section. A pair of mounting slots (4) are provided on both sides of the main steel structure (1) and are matched with the size of the secondary purlins (2); The inner walls of both sides of the secondary purlin (2) are provided with a sliding rod (6) that extends through and out of the secondary purlin (2). The outer end of the sliding rod (6) is fixed with an abutment plate (8). The bottom ends of the pair of abutment plates (8) are inclined inward. The inner side of the main steel structure (1) is fixed with an installation plate (9) that abuts against the abutment plate (8). The sliding rods (6) on both sides are connected by an elastic telescopic member (11).

2. The connection structure between steel roof purlins and trusses according to claim 1, characterized in that: The two sides of the embedded end of the secondary purlin (2) are fastened to the main steel structure (1) by bolts (3).

3. The connection structure between steel roof purlins and trusses according to claim 1, characterized in that: The outer periphery of the embedded end of the secondary purlin (2) is also fixed with a positioning plate (5) that fits against the inner side of the main steel structure (1).

4. The connection structure between steel roof purlins and trusses according to claim 1, characterized in that: Both sides of the embedded end of the secondary purlin (2) have elongated holes (7) for the slide rod (6) to slide up and down. The inner end of the slide rod (6) is fixed with a movable plate (10). The upper ends of the pair of movable plates (10) are inclined outward. The elastic telescopic member (11) is fixed between the pair of movable plates (10). The inner top surface of the secondary purlin (2) is fixed with a pair of extrusion plates (12) corresponding to the movable plates (10). The lower ends of the pair of extrusion plates (12) are inclined inward.

5. The connection structure between steel roof purlins and trusses according to claim 1, characterized in that: Anti-slip rubber pads are provided on the opposite surfaces of a pair of extrusion plates (12).

6. The connection structure between steel roof purlins and trusses according to claim 1, characterized in that: The elastic telescopic component (11) includes a sleeve rod (111) and a T-shaped movable rod (112) extending into the sleeve rod (111). A spring (113) is provided between the sleeve rod (111) and the T-shaped movable rod (112). The two ends of the spring (113) abut against the inner wall of the sleeve rod (111) and the end of the T-shaped movable rod (112), respectively. A groove (114) is provided in the sleeve rod (111) to slide and connect with the T-shaped movable rod (112).

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