Stable connecting device for purlines
By designing a stable connection device with connecting frames, fastening components, and spacing adjustment components, the problems of unstable purlin connections and insufficient adaptability are solved, achieving stable purlin connections and flexible adjustments, thereby improving construction efficiency and the versatility of the device.
Patent Information
- Application Number
- CN202520264915.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-19
AI Technical Summary
Existing purlin connection devices cannot guarantee the accuracy of purlin position, cannot adapt to purlins of different sizes and spacings, resulting in problems such as water accumulation and deformation on the roof. Furthermore, the inability to flexibly adjust purlin length increases the difficulty of material selection and inventory management, and reduces construction efficiency.
A robust connection device is designed, comprising a connecting frame, a fastening component, and a spacing adjustment component. The fastening component prevents purlin displacement through fastening bolts and a sliding rod structure, while the spacing adjustment component adjusts the purlin spacing through a double-ended screw and an adjustment knob to accommodate purlins of different sizes and spacings.
It achieves a stable connection of purlins, ensures the integrity of the roof structure, improves construction efficiency and the versatility of the device, can adapt to the needs of purlins of different sizes and spacings, and simplifies the installation process.
Smart Images
Figure CN223766971U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of purlin connection equipment, and specifically to a stable connection device for purlins. Background Technology
[0002] In the construction industry, purlins are crucial structural components. Existing technologies employ various purlin connection methods. Common methods include welding, where the ends of the purlins are directly welded together, providing strong connection stability. However, this method demands high-precision welding techniques and is difficult to disassemble and adjust later. Bolted connections utilize bolts and nuts fitted into connecting holes on the purlin, offering relatively simple operation and easy maintenance; however, bolt loosening may occur under long-term vibration. Additionally, some connection devices employ a combination of slots and blocks, enabling quick purlin connection positioning, but wear on the slots and blocks can affect the connection's effectiveness. These existing technologies are applied in various scenarios, each with its own characteristics and advantages, providing diverse solutions for purlin connections. The following problems exist with these existing technologies:
[0003] Existing purlin stabilization devices lack fastening components, failing to guarantee accurate purlin positioning and potentially leading to roof water accumulation and deformation. Furthermore, the lack of fastening components limits the device's applicability to purlins of specific sizes. When encountering slightly larger or smaller purlins, the connection cannot be effectively adjusted, limiting material selection in practical projects as a strict match between purlin size and device is required, reducing construction efficiency. Additionally, the current devices lack spacing adjustment functionality, restricting their application to purlins with specific spacing. This necessitates stocking multiple spacing options to meet diverse architectural design requirements, increasing inventory management complexity. Moreover, the existing devices cannot adjust purlin length after welding, making installation impossible. Utility Model Content
[0004] This invention provides a stable connection device for purlins to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A stabilizing connection device for purlins includes a connecting frame, a first purlin inserted into the inner right side of the connecting frame, a second purlin inserted into the inner left side of the connecting frame, movable plates slidably connected to both the inner left and right sides of the connecting frame, two symmetrical fastening components provided on both the front and rear sides of the connecting frame, and a spacing adjustment component provided on the top of the connecting frame.
[0007] A further improvement of this utility model is that: the fastening assembly includes a fixed frame, the side of the fixed frame near the first purlin is fixedly connected to the connecting frame, the outer wall of the fixed frame away from the connecting frame has a threaded hole, the threaded hole is threaded with a fastening bolt, the end of the fastening bolt near the connecting frame passes through the interior of the fixed frame and is rotatably connected to a lifting plate, the side of the lifting plate near the connecting frame is fixedly connected to two sliding rods, the outer wall of the connecting frame near the fixed frame has circular slots that are adapted to the size, position and number of the sliding rods, and the inner walls of the two circular slots are slidably connected to the outer walls of the two sliding rods respectively.
[0008] A further improvement of this utility model is that: the ends of the two slide rods away from the lifting plate pass through the interior of the connecting frame and are fixedly connected to an extrusion plate, and an anti-slip pad that fits against the outer wall of the first purlin is fixedly connected to the side of the extrusion plate away from the slide rod.
[0009] A further improvement of the present invention is that the spacing adjustment component includes two side plates, the bottom of the left and right side plates are fixedly connected to the top of the connecting frame, the opposite surfaces of the left and right side plates are rotatably connected to a double-headed screw, the left side wall of the left side plate is rotatably connected to an adjustment knob, and the right end of the adjustment knob extends through to the right side wall of the left side plate and is fixedly connected to the double-headed screw.
[0010] A further improvement of this utility model is that: threaded moving blocks are fixedly connected to the top of the left and right movable plates, and threaded holes are opened inside the left and right threaded moving blocks. The left and right threaded moving blocks are respectively threaded to the left and right sides of the outer wall of the double-ended screw through the opened threaded holes. A straight groove hole with a left-right direction is opened at the top of the connecting frame. The top of the left and right threaded moving blocks extends through to the top of the connecting frame. The outer wall of the left and right threaded moving blocks is slidably connected to the inner wall of the straight groove hole.
[0011] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0012] 1. This utility model provides a stable connection device for purlins. Through the fastening components, it can effectively prevent the purlins from shifting within the connection frame, ensuring the stability of the purlins and protecting the integrity of the roof structure. At the same time, the design of the fastening components allows it to adapt to purlins of different sizes within a certain range, enabling the anti-slip pad to fit tightly against the outer wall of the purlin. It also facilitates the disassembly and installation of the purlins, improving the construction efficiency of the device.
[0013] 2. This utility model provides a stable connection device for purlins. By setting a spacing adjustment component, it can realize different installation requirements for the spacing between two purlins, thereby flexibly adapting to various spacing requirements, greatly improving the versatility of the device. Moreover, the device can adjust the length of the purlin according to the actual situation, which facilitates installation and further improves work efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure of the connecting frame of this utility model;
[0016] Figure 3 This is a schematic diagram of the fastening component structure of this utility model;
[0017] Figure 4 This is another schematic diagram of the fastening component structure of this utility model;
[0018] Figure 5 This is a schematic diagram of the spacing adjustment component of this utility model.
[0019] In the diagram: 10. Connecting frame; 11. First purlin; 12. Second purlin; 13. Moving plate; 2. Fastening assembly; 20. Fixing frame; 21. Threaded hole; 22. Lifting plate; 23. Slide rod; 24. Circular slot hole; 25. Extrusion plate; 26. Anti-slip pad; 27. Fastening bolt; 3. Spacing adjustment assembly; 30. Straight slot hole; 31. Side plate; 32. Double-ended screw; 33. Adjustment knob; 34. Threaded moving block. Detailed Implementation
[0020] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:
[0021] like Figure 1 , Figure 2 As shown, this utility model provides a stable connection device for purlins, including a connecting frame 10. A first purlin 11 is inserted into the right side of the inside of the connecting frame 10, and a second purlin 12 is inserted into the left side of the inside of the connecting frame 10. Movable plates 13 are slidably connected to both the left and right sides of the inside of the connecting frame 10. Two left-right symmetrical fastening components 2 are provided on both the front and rear sides of the connecting frame 10, and a spacing adjustment component 3 is provided on the top of the connecting frame 10.
[0022] The connecting frame 10 serves as the main structure, used to accommodate and connect the first purlin 11 and the second purlin 12. The fastening component 2 can fasten the purlins inserted into the connecting frame 10. The spacing adjustment component 3 can adjust the distance between the first purlin 11 and the second purlin 12. Movable plates 13 are installed on both the left and right sides inside the connecting frame 10. The movable plates 13 are slidably connected to the inner wall of the connecting frame 10 through a slide rail structure, so that the movable plates 13 can move smoothly left and right inside the connecting frame 10.
[0023] like Figure 3 , Figure 4 As shown, the fastening assembly 2 includes a fixed frame 20. The side of the fixed frame 20 closest to the first purlin 11 is fixedly connected to the connecting frame 10. The outer wall of the fixed frame 20 away from the connecting frame 10 has a threaded hole 21. A fastening bolt 27 is threadedly connected inside the threaded hole 21. The end of the fastening bolt 27 closest to the connecting frame 10 passes through the interior of the fixed frame 20 and is rotatably connected to a lifting plate 22. Two sliding rods 23 are fixedly connected to the side of the lifting plate 22 closest to the connecting frame 10. The outer wall of the connecting frame 10 closest to the fixed frame 20 has circular slots 24 that are adapted to the size, position, and number of the sliding rods 23. The inner walls of the two circular slots 24 are slidably connected to the outer walls of the two sliding rods 23, respectively.
[0024] like Figure 3 , Figure 4 As shown, the ends of the two slide rods 23 away from the lifting plate 22 pass through the interior of the connecting frame 10 and are fixedly connected to the pressing plate 25. The side of the pressing plate 25 away from the slide rods 23 is fixedly connected to the anti-slip pad 26 that is in contact with the outer wall of the first purlin 11.
[0025] When it is necessary to fix the first purlin 11 and the second purlin 12 together, firstly, insert the first purlin 11 into the inner right slot of the connecting frame 10, and insert the second purlin 12 into the inner left slot of the connecting frame 10. Then, rotate the fastening bolt 27. Since the fastening bolt 27 is threadedly connected to the threaded hole 21 on the fixed frame 20, and the end of the fastening bolt 27 near the connecting frame 10 is rotatably connected to the lifting plate 22 through a bearing, under the action of threaded transmission, the rotational motion of the fastening bolt 27 is converted into the linear motion of the lifting plate 22. The lifting plate 22 moves between the fixed frame 20 and the connecting frame 10, causing the sliding rod 23 connected to it to slide in the circular slot 24 on the outer wall of the connecting frame 10, thus... The lifting plate 22 moves, and the sliding rod 23 drives the pressing plate 25 to move closer to or away from the purlin. When the anti-slip pad 26 on the pressing plate 25 contacts and presses against the first purlin 11 or the second purlin 12, the friction between the anti-slip pad 26 and the outer wall of the purlin securely fixes the purlin in the connecting frame 10. The fastening component 2 effectively prevents the purlin from shifting within the connecting frame 10, ensuring the stability of the purlin and protecting the integrity of the roof structure. At the same time, the design of the fastening component allows it to adapt to purlins of different sizes within a certain range, enabling the anti-slip pad to fit tightly against the outer wall of the purlin. It also facilitates the disassembly and installation of the purlin, improving the construction efficiency of the device.
[0026] like Figure 5 As shown, the spacing adjustment assembly 3 includes two side plates 31. The bottom of the left and right side plates 31 is fixedly connected to the top of the connecting frame 10. The opposite surfaces of the left and right side plates 31 are rotatably connected to a double-headed screw 32. The left side wall of the left side plate 31 is rotatably connected to an adjustment knob 33. The right end of the adjustment knob 33 extends through to the right side wall of the left side plate 31 and is fixedly connected to the double-headed screw 32.
[0027] like Figure 5 As shown, threaded moving blocks 34 are fixedly connected to the top of the left and right moving plates 13. Threaded holes are opened inside the left and right threaded moving blocks 34. The left and right threaded moving blocks 34 are threaded to the left and right sides of the outer wall of the double-ended screw 32 through the threaded holes. A straight groove hole 30 with a left-right orientation is opened at the top of the connecting frame 10. The top of the left and right threaded moving blocks 34 extends through to the top of the connecting frame 10. The outer wall of the left and right threaded moving blocks 34 is slidably connected to the inner wall of the straight groove hole 30.
[0028] When it is necessary to adjust the distance between the first purlin 11 and the second purlin 12, rotate the adjustment knob 33. The adjustment knob 33 drives the double-ended screw 32 to rotate between the left and right side plates 31. Since the threaded moving blocks 34 on the top of the left and right moving plates 13 are respectively threaded to the left and right sides of the double-ended screw 32, and the threaded moving blocks 34 slide in the straight slot hole 30 at the top of the connecting frame 10, they are restricted to moving only left and right along the straight slot hole 30. When the double-ended screw 32 rotates, according to the difference in the direction of rotation of its left and right threads, the left and right threaded moving blocks 34 can move freely. 4. Drive the corresponding moving plate 13 to move towards or away from each other. At the same time, cooperate with the fastening component 2 to manually adjust the distance between the first purlin 11 and the second purlin 12 after the purlin is released from its fixed position. After the spacing is adjusted, the purlin is fixed again by the fastening component 2. The spacing adjustment component 3 can realize different installation requirements for the spacing of the two purlins, so as to flexibly adapt to various spacing requirements, greatly improve the versatility of the device, and the length of the purlin can be adjusted according to the actual situation, which facilitates installation and further improves work efficiency.
[0029] The working principle of this stabilizing connection device for purlins will be explained in detail below.
[0030] like Figure 1-5 As shown, when it is necessary to fix the first purlin 11 and the second purlin 12 together, firstly, insert the first purlin 11 into the inner right slot of the connecting frame 10, and insert the second purlin 12 into the inner left slot of the connecting frame 10. Then, rotate the fastening bolt 27. Since the fastening bolt 27 is threadedly connected to the threaded hole 21 on the fixed frame 20, and the end of the fastening bolt 27 near the connecting frame 10 is rotatably connected to the lifting plate 22 through a bearing, under the action of threaded transmission, the rotational motion of the fastening bolt 27 is converted into the linear motion of the lifting plate 22. The lifting plate 22 moves between the fixed frame 20 and the connecting frame 10, so that the sliding rod 23 connected to it slides in the circular slot 24 on the outer wall of the connecting frame 10. The lifting plate 22 acts as a guide and limiter. As the lifting plate 22 moves, the sliding rod 23 drives the pressing plate 25 to move closer to or away from the purlin. When the anti-slip pad 26 on the pressing plate 25 contacts and presses against the first purlin 11 or the second purlin 12, the friction between the anti-slip pad 26 and the outer wall of the purlin is used to firmly fix the purlin in the connecting frame 10. The fastening component 2 can effectively prevent the purlin from shifting in the connecting frame 10, ensuring the stability of the purlin and protecting the integrity of the roof structure. At the same time, the design of the fastening component allows it to adapt to purlins of different sizes within a certain range, so that the anti-slip pad can fit tightly against the outer wall of the purlin. It also facilitates the disassembly and installation of the purlin, improving the construction efficiency of the device.
[0031] When it is necessary to adjust the distance between the first purlin 11 and the second purlin 12, rotate the adjustment knob 33. The adjustment knob 33 drives the double-ended screw 32 to rotate between the left and right side plates 31. Since the threaded moving blocks 34 on the top of the left and right moving plates 13 are respectively threaded to the left and right sides of the double-ended screw 32, and the threaded moving blocks 34 slide in the straight slot hole 30 at the top of the connecting frame 10, they are restricted to moving only left and right along the straight slot hole 30. When the double-ended screw 32 rotates, according to the difference in the direction of rotation of its left and right threads, the left and right threaded moving blocks 34 can move freely. 4. Drive the corresponding moving plate 13 to move towards or away from each other. At the same time, cooperate with the fastening component 2 to manually adjust the distance between the first purlin 11 and the second purlin 12 after the purlin is released from its fixed position. After the spacing is adjusted, the purlin is fixed again by the fastening component 2. The spacing adjustment component 3 can realize different installation requirements for the spacing of the two purlins, so as to flexibly adapt to various spacing requirements, greatly improve the versatility of the device, and the length of the purlin can be adjusted according to the actual situation, which facilitates installation and further improves work efficiency.
[0032] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A secure connection device for purlins comprising a connection frame (10) characterised in that: The inside right side of the connecting frame (10) is inserted with a first purlin (11), the inside left side of the connecting frame (10) is inserted with a second purlin (12), the left and right sides of the inside of the connecting frame (10) are both slidingly connected with a moving plate (13), and the front and rear sides of the connecting frame (10) are both provided with two left-right symmetrical fastening assemblies (2), and the top of the connecting frame (10) is provided with a spacing adjusting assembly (3).
2. A secure connection device for purlins as claimed in claim 1, wherein: The fastening assembly (2) comprises a fixed frame (20), the side of the fixed frame (20) close to the first purlin (11) is fixedly connected with the connecting frame (10), a threaded hole (21) is formed in the outer wall of the side of the fixed frame (20) away from the connecting frame (10), a fastening bolt (27) is in threaded connection in the threaded hole (21), one end of the fastening bolt (27) close to the connecting frame (10) penetrates into the inside of the fixed frame (20) and is rotationally connected with a lifting plate (22), two slide rods (23) are fixedly connected on the side of the lifting plate (22) close to the connecting frame (10), and a circular groove hole (24) is formed in the outer wall of the side of the connecting frame (10) close to the fixed frame (20), the inner wall of the circular groove hole (24) is in sliding connection with the outer wall of the slide rod (23).
3. A secure connection device for purlins according to claim 2, characterised in that: One end of the two slide rods (23) away from the lifting plate (22) penetrates into the inside of the connecting frame (10) and is fixedly connected with an extrusion plate (25), and the side of the extrusion plate (25) away from the slide rod (23) is fixedly connected with an antiskid pad (26) abutting the outer wall of the first purlin (11).
4. A secure connection device for purlins according to claim 1, characterised in that: The spacing adjusting assembly (3) comprises two side plates (31), the bottoms of the left and right side plates (31) are fixedly connected on the top of the connecting frame (10), double-headed screws (32) are rotationally connected on the opposite surfaces of the left and right side plates (31), and an adjusting knob (33) is rotationally connected on the left side wall of the left side plate (31), the right end of the adjusting knob (33) penetrates into the right side wall of the left side plate (31) and is fixedly connected with the double-headed screw (32).
5. A secure connection device for purlins according to claim 4, characterised in that: The tops of the left and right moving plates (13) are fixedly connected with threaded moving blocks (34), the inside of each threaded moving block (34) is provided with a threaded hole, the threaded moving blocks (34) are in threaded connection on the left and right sides of the outer wall of the double-headed screw (32) through the threaded holes, the top of the connecting frame (10) is provided with a straight groove hole (30) extending leftward and rightward, the tops of the threaded moving blocks (34) penetrate into the top of the connecting frame (10), and the outer walls of the threaded moving blocks (34) are in sliding connection with the inner wall of the straight groove hole (30).