Steel structure plant purline reinforcing device
The main and secondary purlins are connected by a clamping plate and chuck structure, and reinforced by a worm gear mechanism and limit bolts. This solves the problem of welding damaging the anti-rust coating and achieves a stable connection and safety protection for the main and secondary purlins.
Patent Information
- Application Number
- CN202520268502.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-02-19
AI Technical Summary
In the existing technology, the welding reinforcement method between the main and secondary purlins can easily damage the anti-rust coating and affect the safety of use.
It adopts a clamping plate and chuck structure, connects the main and secondary purlins through a worm gear mechanism, and is fixed by limit bolts and reinforcing rods to avoid welding.
This achieves a stable connection between the main and secondary purlins, protects the anti-rust coating, and improves the safety and stability of the steel structure house.
Smart Images

Figure CN223621064U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel structure factory building technology, specifically a purlin reinforcement device for steel structure factory buildings. Background Technology
[0002] Steel structures are structures made of steel materials and are one of the main types of building structures. The structure mainly consists of steel beams, steel columns, steel trusses, and other components made of shaped steel and steel plates, and employs rust removal and prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing. Due to its light weight and ease of construction, it is widely used in large factories, stadiums, and high-rise buildings.
[0003] In the construction of steel structure houses, the overlapping structure of primary and secondary purlins is often involved. The secondary purlins are laid on top of the primary purlins, and the secondary purlins are perpendicular to the primary purlins. To ensure the stability of the steel structure house, the primary and secondary purlins need to be reinforced. In related technologies, the reinforcement method between primary and secondary purlins is mainly through welding. However, the welding process can easily damage the anti-rust coating on the surface of the primary and secondary purlins, thus affecting their safety in use. Utility Model Content
[0004] The purpose of this utility model is to provide a purlin reinforcement device for steel structure factory buildings to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a purlin reinforcement device for steel structure factory buildings, including a main purlin, with secondary purlins arranged on the outer side of the main purlin, and further comprising:
[0006] A retaining plate is provided on the outside of the main purlin and the secondary purlin. The retaining plate has a retaining groove inside to limit the movement of the main purlin. The retaining plate also has a groove inside. A chuck is rotatably installed inside the groove. A worm gear ring is fixedly installed on the outside of the chuck. A connecting rod is rotatably installed inside the chuck. A worm gear that meshes with the worm gear ring is fixedly installed on the outside of the connecting rod.
[0007] Preferably, the chuck has a limiting groove inside, and a limiting strip that slides in the limiting groove is fixedly installed on the outside of the chuck.
[0008] Preferably, both the chuck and the groove have screw holes inside, and the chuck has internal threads for mounting fixing bolts.
[0009] Preferably, a connector is fixedly installed on the outer side of the connecting rod, and the connector has an internal hexagonal opening.
[0010] Preferably, a first mounting block is fixedly installed on one side of the card plate, and a second mounting block is fixedly installed on the other end. Reinforcing rods are snapped into the interior of the first and second mounting blocks.
[0011] Preferably, both the first mounting block and the second mounting block are provided with mounting bolts inside.
[0012] Preferably, the card plate is provided with a limiting bolt that penetrates the card slot.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention involves installing two clamping plates between the main purlin and the secondary purlin. A hex wrench is then inserted into an internal hex socket to rotate the worm gear. As the worm gear rotates, it drives a worm wheel ring, which in turn rotates the chuck in a groove, transferring one side of the chuck to the groove on the other side, thus connecting the two clamping plates together. A limiting bolt is then fixed into the clamping plates. The two clamping plates interlock to secure the main purlin and the secondary purlin together. After the clamping plates are installed, a reinforcing rod is inserted from one side of the first mounting block and simultaneously into the second mounting block. The reinforcing rod is U-shaped and inserted into the secondary purlin. Finally, mounting bolts are used to fix the reinforcing rod into both the first and second mounting blocks, thus reinforcing the connection between the clamping plates and the secondary purlin. Attached Figure Description
[0015] Figure 1 A schematic diagram of the purlin reinforcement device for steel structure factory buildings provided by this utility model;
[0016] Figure 2 A schematic diagram of the card plate structure provided by this utility model;
[0017] Figure 3 This is a schematic diagram of the card plate and chuck structure provided by this utility model;
[0018] Figure 4 Another perspective view of the card plate provided by this utility model.
[0019] In the diagram: 1. Main purlin; 2. Secondary purlin; 3. Clamping plate; 4. Clamping groove; 5. Groove; 6. Chuck; 7. Worm gear ring; 8. Connecting rod; 9. Worm; 10. Limiting groove; 11. Limiting strip; 12. Screw hole; 13. Fixing bolt; 14. First mounting block; 15. Second mounting block; 16. Reinforcing rod; 17. Limiting bolt; 18. Connector. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-4 As shown, a steel structure factory purlin reinforcement device includes a main purlin 1, a secondary purlin 2 disposed on the outer side of the main purlin 1, the secondary purlin 2 being installed on top of the main purlin 1, and further includes: a clamping plate 3 disposed on the outer side of the main purlin 1 and the secondary purlin 2, two clamping plates 3 being disposed, the clamping plate 3 having a clamping groove 4 inside for limiting the main purlin 1, the clamping groove 4 being clamped on the outer side of the lower part of the main purlin 1, and the upper part of the clamping plate 3 being clamped on the top of the secondary purlin 2; the clamping plate 3 having a groove 5 inside, a chuck 6 being rotatably installed inside the groove 5, a worm gear ring 7 being fixedly installed on the outer side of the chuck 6, a connecting rod 8 being rotatably installed inside the chuck 6, and a worm 9 being fixedly installed on the outer side of the connecting rod 8 for meshing with the worm gear ring 7. When the worm 9 rotates, it drives the worm wheel ring 7 to move. The worm wheel ring 7 drives the chuck 6 to rotate in the groove 5, transferring one end of the chuck 6 to the groove 5 on the other side, thereby connecting the two chuck plates 3 together.
[0022] The chuck 6 has a limiting groove 10 inside, and a limiting strip 11 that slides in the limiting groove 10 is fixedly installed on the outside of the chuck 6. When the chuck 6 moves, it drives the limiting strip 11 to move inside the limiting groove 10. The limiting groove 10 and the limiting strip 11 limit the chuck 6 in the groove 5. Both the chuck 6 and the groove 5 have screw holes 12 inside. The chuck 6 has a fixing bolt 13 installed in the internal thread. When the chuck 6 is transferred to the groove 5 on the other side, the screw holes in the chuck 6 and the groove 5 are aligned. The chuck 6 is fixed in the chuck plate 3 by the fixing bolt 13. A connector 18 is fixedly installed on the outside of the connecting rod 8. The connector 18 has an internal hexagonal socket. A hexagonal wrench is inserted into the internal hexagonal socket to rotate the worm gear 9.
[0023] A first mounting block 14 is fixedly installed on one side of the clamping plate 3, and a second mounting block 15 is fixedly installed on the other end. A reinforcing rod 16 is snapped into the inside of the first mounting block 14 and the second mounting block 15. Mounting bolts are provided inside the first mounting block 14 and the second mounting block 15. After the clamping plate 3 is installed, the reinforcing rod 16 is inserted from one side of the first mounting block 14 and simultaneously inserted into the second mounting block 15. The reinforcing rod 16 is U-shaped and is inserted into the secondary purlin 2. Then, the reinforcing rod 16 is installed and fixed into the first mounting block 14 and the second mounting block 15 by the mounting bolts, thereby reinforcing the connection between the clamping plate 3 and the secondary purlin 2.
[0024] The card plate 3 is provided with a limiting bolt 17 that passes through the card slot 4, and the card plate 3 is fixed to the main purlin 1 by the limiting bolt 17.
[0025] Working principle: When reinforcing the space between the main purlin 1 and the secondary purlin 2, the two clamping plates 3 are placed as follows: Figure 1 The purlin 1 and secondary purlin 2 are installed as shown. A hex wrench is then inserted into the internal hex socket to rotate the worm gear 9. As the worm gear 9 rotates, it drives the worm wheel ring 7 to move. The worm wheel ring 7 drives the chuck 6 to rotate in the groove 5, transferring one side of the chuck 6 to the other side of the groove 5, thus connecting the two clamping plates 3 together. Then, the limiting bolt 17 is fixedly installed into the clamping plate 3. The two clamping plates 3 interlock to fix the main purlin 1 and secondary purlin 2 together. After the clamping plates 3 are installed, the reinforcing rod 16 is inserted from one side of the first mounting block 14 and simultaneously into the second mounting block 15. The reinforcing rod 16 is U-shaped and inserted into the secondary purlin 2. Then, the reinforcing rod 16 is fixed to the first mounting block 14 and the second mounting block 15 using mounting bolts, thus reinforcing the connection between the clamping plates 3 and the secondary purlin 2.
[0026] 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.
[0027] 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 purlin reinforcement device for a steel structure factory building, comprising a main purlin (1), wherein secondary purlins (2) are provided on the outer side of the main purlin (1), characterized in that, Also includes: A retaining plate (3) is provided on the outside of the main purlin (1) and the secondary purlin (2). The retaining plate (3) has a retaining groove (4) inside to limit the main purlin (1). The retaining plate (3) has a groove (5) inside. A chuck (6) is rotatably installed inside the groove (5). A worm gear ring (7) is fixedly installed on the outside of the chuck (6). A connecting rod (8) is rotatably installed inside the chuck (6). A worm (9) that meshes with the worm gear ring (7) is fixedly installed on the outside of the connecting rod (8).
2. The purlin reinforcement device for steel structure factory buildings according to claim 1, characterized in that: The chuck (6) has a limiting groove (10) inside, and a limiting strip (11) that slides in the limiting groove (10) is fixedly installed on the outside of the chuck (6).
3. The purlin reinforcement device for steel structure factory buildings according to claim 1, characterized in that: Both the chuck (6) and the groove (5) have screw holes (12) inside, and the chuck (6) has a fixing bolt (13) installed inside.
4. The purlin reinforcement device for steel structure factory buildings according to claim 1, characterized in that: A connector (18) is fixedly installed on the outside of the connecting rod (8), and the connector (18) has an internal hexagonal opening.
5. The purlin reinforcement device for steel structure factory buildings according to claim 1, characterized in that: A first mounting block (14) is fixedly installed on one side of the card plate (3), and a second mounting block (15) is fixedly installed on the other end. A reinforcing rod (16) is snapped into the inside of the first mounting block (14) and the second mounting block (15).
6. The purlin reinforcement device for steel structure factory buildings according to claim 5, characterized in that: The first mounting block (14) and the second mounting block (15) are both equipped with mounting bolts.
7. The purlin reinforcement device for steel structure factory buildings according to claim 1, characterized in that: The card plate (3) is provided with a limiting bolt (17) that passes through the card slot (4).