Roof purline reinforcing structure
By designing adjustable-angle left and right connector reinforcement structures, the problem of purlin angle connection in existing technologies has been solved, achieving a stable connection of complex roof structures and improving the safety and durability of the roof structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HEHONGSHENG TECHNOLOGY DEVELOPMENT CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-15
AI Technical Summary
The existing roof purlin reinforcement structure cannot adapt to the different angle connection requirements of purlins in complex roof structures, resulting in ineffective support and fixation.
Design a reinforcement structure including a left connector and a right connector. The angle can be adjusted by rotating the shell and connecting plate. The screw connection between the rotating rod and the purlin and the binding rope are used to fix it, which can adapt to the purlin docking at different angles.
It enables flexible adjustment and stable connection based on the purlin angle, adapts to the reinforcement needs of complex roof structures, and improves the safety and durability of roof structures.
Smart Images

Figure CN224244255U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roof purlin reinforcement technology, and in particular to a roof purlin reinforcement structure. Background Technology
[0002] Roof purlin reinforcement is an important measure to ensure the safety and durability of steel structure roofs, especially under increased loads (such as the installation of photovoltaic panels) or structural aging. Therefore, the existing roof purlin reinforcement structure, with announcement number CN217079837U, works by rotating a worm gear, which drives the second bevel gear at its top to rotate. This meshes the first and second bevel gears, causing two bidirectional threaded rods to rotate. This causes two sliding plates to slide towards or away from each other, making the two reinforcement shells abut against the outer wall of the purlin. The inserts on both sides of the purlin are inserted into the corresponding holes. At the same time, the worm gear drives the worm wheels on both sides to rotate, causing the two support rods to rotate until they abut against the bottom of the corresponding purlin, thus providing good lateral support for the purlin.
[0003] However, when roof purlins are joined, it is usually determined whether they should be joined at a certain angle based on specific design requirements and construction conditions, rather than simply being joined horizontally at 180 degrees. In some complex roof structures, purlins may need to be joined at a certain angle to adapt to the slope and direction of the roof. However, the two reinforcing shells used in the existing technology have a fixed overall shape, which means that they can only clamp the roof purlins at the joining angle when in use. Utility Model Content
[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing a roof purlin reinforcement structure.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a roof purlin reinforcement structure, the reinforcement structure including a left connector and a right connector, the left connector and the right connector being respectively positioned close to the two mating purlins, the reinforcement structure having several such connectors distributed around the two mating purlins, a connecting plate being fixedly installed at the center of one end of the left connector, and a rotating shell being fixedly installed at one end of the right connector, the connecting plate and the rotating shell having a circular array of perforations on their surfaces, and an inner spring rod being embedded in the center of the surface of the connecting plate, a connecting frame being fixedly installed at the telescopic end of the inner spring rod, and several pins being fixedly installed on the surface of the connecting frame for passing through the perforations on the surfaces of the connecting plate and the rotating shell, the other ends of the left connector and the right connector being rotatably connected to coaxially distributed rotating rods, the rotating rods having cross holes on their surfaces and long screws for threaded connection with the purlin surfaces.
[0006] Preferably, the left and right connectors have annular grooves on their surfaces near the other end, as well as on the rotating rod surface, and a bracket is provided through one inner wall of the annular groove on the rotating rod surface.
[0007] Preferably, a number of outer spring rods are provided between the insert and the inner wall of the annular groove on the surface of the rotating rod, and the inner wall of the annular groove on one side of the left connector and the right connector are hollowed out in a ring array and used to insert with the insert.
[0008] Preferably, the annular grooves on the surfaces of the left and right connectors are arranged in a circular array about the central axis of the rotating rod.
[0009] Preferably, the central axis of the connecting disc is arranged perpendicular to the central axis of the rotating rod.
[0010] Preferably, the reinforcement structure further includes two binding ropes, which are located on the surfaces of the two mating purlins and pass through the cross holes on the surfaces of the rotating rods around the purlins.
[0011] Preferably, a rotating plate is rotatably connected at the center of the end of the rotating rod away from the right connector, and bolts are threadedly connected at the corner positions of the rotating plate surface.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] 1. In this utility model, the rotational connection between the rotating shell and the connecting plate can realize the angle adjustment of the left and right connecting heads, which is convenient to adjust according to the angle of the reinforced purlin. That is, it ensures that the two rotating rods in the same reinforcement structure are set along the length direction of the two purlins that are connected, so that roof purlins with different connection angles can be reinforced during use.
[0014] 2. In this utility model, by rotating the rotating rod relative to the left or right connecting head, it is possible to ensure that when the rotating rod is set at the bottom or side of the purlin, the long screw can be directed toward the purlin surface by rotating the rotating rod, which facilitates the smooth spiraling of the long screw onto the purlin. Attached Figure Description
[0015] Figure 1 A three-dimensional structural diagram of a roof purlin reinforcement structure is provided for this utility model;
[0016] Figure 2 This utility model provides a structural schematic diagram of the left connector of a roof purlin reinforcement structure;
[0017] Figure 3 This utility model proposes a roof purlin reinforcement structure. Figure 2 A schematic diagram of the cross-sectional structure;
[0018] Figure 4 for Figure 3 A top-down sectional view of the structure.
[0019] Legend: 1. Left connector; 2. Right connector; 3. Rotating rod; 4. Rotating plate; 5. Binding rope; 6. Cross hole; 7. Long screw; 8. Bolt; 9. Connecting plate; 10. Rotating shell; 11. Insert bracket; 12. Outer spring rod; 13. Connecting bracket; 14. Inner spring rod; 15. Pin; 16. Annular groove. Detailed Implementation
[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0022] like Figures 1-4As shown, a roof purlin reinforcement structure includes a left connector 1 and a right connector 2. The left connector 1 and right connector 2 are respectively positioned close to the two mating purlins. The reinforcement structure has several connectors distributed around the two mating purlins. A connecting plate 9 is fixedly installed and extends outward from the center of one end of the left connector 1. A rotating shell 10, fitted onto the edges of both ends of the connecting plate 9, is fixedly installed and extends outward from one end of the right connector 2. The left connector 10 is connected to the connecting plate 9 by rotation. The angles of connectors 1 and 2 are adjustable to accommodate the angles of the reinforced purlins. The surfaces of the two connecting discs 9 and the rotating housing 10 are arranged in a circular array with perforations. An inner spring rod 14, coaxially aligned, is embedded in the center of the surface of each connecting disc 9. A connecting frame 13 is fixedly mounted on the telescopic end of the inner spring rod 14. Several pins 15, which pass through the perforations on the surfaces of the connecting discs 9 and the rotating housing 10, are fixedly mounted on the surface of the connecting frame 13. Under normal conditions, the connection is achieved using the tension of the inner spring rod 14. The frame 13 is positioned close to the connecting plate 9. At this point, the pin 15 on the surface of the frame 13 passes through the openwork on the surfaces of the connecting plate 9 and the rotating shell 10, locking the connecting plate 9 and the rotating shell 10. When the angles of the left connecting head 1 and the right connecting head 2 need to be adjusted, the frame 13 is pulled to overcome the tension of the inner spring rod 14 and move until the pin 15 disengages from the openwork on the surface of the connecting plate 9, thus allowing the connecting plate 9 and the rotating shell 10 to rotate smoothly relative to each other. The other ends of both the left connecting head 1 and the right connecting head 2 are rotatably connected to coaxially distributed rotating rods 3. The rotating rod 3 has a cross hole 6 on its surface and a long screw 7 for threaded connection with the purlin surface. By using the screw 7 to pass through the rotating rod 3 and be threaded into the purlin surface, the relative position of the rotating rod 3 and the purlin can be fixed, thus reinforcing the two purlins. In addition, in this solution, by rotating the rotating rod 3 relative to the left connector 1 or the right connector 2, it can be ensured that when the rotating rod 3 is set at the bottom or side of the purlin, the long screw 7 can be directed toward the purlin surface by rotating the rotating rod 3.
[0023] Annular grooves 16 are formed on the surfaces of the left connector 1 and the right connector 2 near their respective ends, as well as on the surface of the rotating rod 3. A insert 11 is inserted through one inner wall of the annular groove 16 on the rotating rod 3. Several outer spring rods 12 are positioned between the insert 11 and the other inner wall of the annular groove 16 on the rotating rod 3. The thrust of the outer spring rods 12 forces the insert 11 to move towards the left connector 1. The inner walls of one side of the annular groove 16 in the left connector 1 and the right connector 2 are arranged in a circular array with openwork sections for insertion into the insert 11. Figure 2As shown, by using the left insert 11 to pass through the left connector 1 and the right insert 11 to pass through the right connector 2, the relative positions of the left connector 1 and the left rotating rod 3, as well as the right connector 2 and the right rotating rod 3, can be fixed. The annular grooves 16 on the surfaces of the left connector 1 and the right connector 2 are provided with four slots and are arranged in a circular array about the central axis of the rotating rod 3, so that the rotating rod 3 can still be smoothly inserted into the insert 11 even when rotated 90 degrees.
[0024] The central axis of the connecting plate 9 is set perpendicular to the central axis of the rotating rod 3. The reinforcement structure also includes two binding ropes 5, which are located on the surfaces of the two mating purlins and pass through the cross holes 6 on the surface of the rotating rod 3 around the purlins. By passing the binding ropes 5 through the cross holes 6 on the surface of the rotating rod 3 around the same purlin and binding them tightly, the relative position of the rotating rod 3 and the purlin can be further fixed. A rotating plate 4 is rotatably connected to the center of the end of the rotating rod 3 away from the right connecting head 2. Bolts 8 are threadedly connected to the corner positions of the rotating plate 4. By rotating the bolts 8 and extending them out of the rotating plate 4 by different distances, even if the sides of the two stacked purlins are misaligned, by controlling the extension length of the bolts 8 and using the bolts 8 to hold against the purlin surface, it can be ensured that the rotating rod 3 is parallel to the side of the purlin.
[0025] In terms of usage, reinforcement structures are set around both purlins. Depending on the angle of the two purlins, the connecting bracket 13 is pulled to overcome the tension of the inner spring rod 14 and move to the cutout on the surface of the connecting plate 9 where the pin 15 disengages. This allows the connecting plate 9 and the rotating shell 10 to rotate smoothly relative to each other, adjusting the angle of the left connecting head 1 and the right connecting head 2. Then, under the tension of the inner spring rod 14, the pin 15 moves back to the cutout on the surface of the connecting plate 9 and the rotating shell 10, fixing the relative position of the connecting plate 9 and the rotating shell 10. Depending on the orientation of the reinforcement structures, the insert bracket 11 is moved to disengage from the left connecting head 1 or the right connecting head 2, allowing the rotating rod 3 to rotate. This ensures that the long screw 7 on the rotating rod 3 faces the purlin and is smoothly connected to the threaded connection on the surface of the purlin.
[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A roof purlin reinforcement structure, characterized in that: The reinforcing structure includes a left connector (1) and a right connector (2). The left connector (1) and the right connector (2) are respectively positioned close to the two purlins that are joined together. The reinforcing structure has several connectors distributed around the two purlins that are joined together. A connecting plate (9) is fixedly installed at the center of one end of the left connector (1). A rotating shell (10) is fixedly installed at one end of the right connector (2) and is fitted onto the edges of both ends of the connecting plate (9). The surfaces of the connecting plate (9) and the rotating shell (10) are arranged in a ring-shaped array of perforations. An inner spring rod (14) is embedded in the center of the surface and is coaxially arranged. A connecting frame (13) is fixedly installed at the telescopic end of the inner spring rod (14). Several pins (15) for passing through the hollowed-out areas on the surface of the connecting plate (9) and the rotating shell (10) are fixedly installed on the surface of the connecting frame (13). The other ends of the left connecting head (1) and the right connecting head (2) are rotatably connected to coaxially distributed rotating rods (3). A cross hole (6) is opened on the surface of the rotating rod (3) and a long screw (7) for threaded connection with the surface of the purlin is provided through the rotating rod (3).
2. The roof purlin reinforcement structure according to claim 1, characterized in that: The left connector (1) and the right connector (2) are provided with annular grooves (16) near the other end and the rotating rod (3) are provided with a bracket (11) through the inner wall of one side of the annular groove (16) on the rotating rod (3).
3. The roof purlin reinforcement structure according to claim 2, characterized in that: Several outer spring rods (12) are provided between the insert (11) and the inner wall of the annular groove (16) on the surface of the rotating rod (3). The inner wall of the annular groove (16) on one side of the left connector (1) and the right connector (2) is hollowed out in an annular array and used to insert into the insert (11).
4. The roof purlin reinforcement structure according to claim 3, characterized in that: The annular grooves (16) on the surfaces of the left connector (1) and the right connector (2) are provided with four openings and are arranged in a ring array about the central axis of the rotating rod (3).
5. The roof purlin reinforcement structure according to claim 1, characterized in that: The central axis of the connecting plate (9) is set perpendicular to the central axis of the rotating rod (3).
6. The roof purlin reinforcement structure according to claim 1, characterized in that: The reinforcement structure also includes two binding ropes (5), which are located on the surfaces of the two mating purlins and pass through the cross holes (6) on the surfaces of the rotating rods (3) around the purlins.
7. The roof purlin reinforcement structure according to claim 1, characterized in that: The rotating rod (3) is rotatably connected to a rotating plate (4) at the center of the end away from the right connector (2), and bolts (8) are threadedly connected to the corner positions of the rotating plate (4).