Steel baking paint keel main keel and auxiliary keel connecting structure
By designing the connecting structure fixing components and the keel connecting fixing components, the problems of inconvenient installation and safety hazards of steel painted keel connection methods are solved, realizing flexible adjustment, rapid installation and high-strength connection, improving construction efficiency and the corrosion resistance of the keel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- OWA METALLIC NEW BUILDINGS MATERIAL (SHANGHAI) CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-23
AI Technical Summary
The existing connection methods for steel painted keel have problems such as non-adjustable installation position, cumbersome construction, insufficient connection strength, and safety hazards.
It adopts a connecting structure fixing component and a keel connecting fixing component. Through the design of adjusting bolts, bidirectional threaded rods and return spring columns, it can achieve flexible adjustment and stable clamping of the main keel and the secondary keel, avoid hot work, and adapt to different installation environments and keel specifications.
It enables precise adjustment and rapid connection of the installation position, improves construction efficiency, enhances connection strength, avoids damage to the keel surface, and ensures construction safety and the corrosion resistance of the keel.
Smart Images

Figure CN224395970U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building keel, and more particularly to the connection structure between the main keel and the secondary keel of a steel painted keel. Background Technology
[0002] As the building decoration industry moves towards lightweight and modular designs, lightweight steel painted keel systems are gradually becoming mainstream due to their combination of metal strength and portability. Their weight characteristics (weight of a single 3m long main keel) are also relevant.
[0003] ≤3.6kg, secondary keel ≤2.4kg); it is mainly used in lightweight and simple home decoration, such as home ceiling decoration, such as flat ceilings in living rooms and bedrooms, decorative lines and other lightweight surface layers. Or it is used in commercial space lightweight decoration, such as simple ceilings in offices and decorative ceilings in shops, to meet the needs of rapid assembly and aesthetics. While lightweight steel painted keel brings the following advantages, it also poses new challenges to the connection structure:
[0004] In existing technologies, the connection methods between the main keel and the secondary keel mainly include the following:
[0005] Welding connection: The main and secondary keels are fixed by welding on site. Although the connection strength is high, there are problems such as the installation position cannot be adjusted, the construction process requires hot work, and the surface paint layer of the keel is easily damaged, resulting in a decrease in anti-corrosion performance.
[0006] Bolt fastening connection: Bolts are directly passed through the pre-set holes of the main and secondary keels for fixing. The holes need to be accurately measured in advance. The installation process is cumbersome and has poor adaptability to the deviation of the keel spacing.
[0007] Snap-on connection: It uses a simple snap-on structure to achieve quick splicing, but the connection strength depends on the structural design of the snap-on itself. It lacks an effective adjustment and locking mechanism and is prone to loosening under long-term load or vibration, which poses a safety hazard.
[0008] Based on the shortcomings of existing connection methods, we propose a connection structure between the main keel and the secondary keel of a steel painted keel. Utility Model Content
[0009] To address the technical problems existing in various connection methods, this utility model provides a connection structure between the main keel and the secondary keel of a steel painted keel.
[0010] This utility model is achieved by the following technical solution: a steel painted keel main keel and secondary keel connection structure, including an overall connection structure, which is composed of a connection structure fixing component and a keel connection fixing component; the entire connection structure is installed to the ceiling or frame through the connection structure fixing component.
[0011] The connecting structure fixing component includes a fixing bracket, which is fixedly connected to the side wall of the main body plate. A connecting seat is fixedly installed at the bottom end of the fixing bracket, and a fixing plate is fixedly connected to the bottom end of the connecting seat. An adjusting bolt passes through the surface of the fixing plate, and a fixing clamp is fixedly connected to the top end of the adjusting bolt.
[0012] The keel connection and fixing assembly includes a main plate with a slide groove extending along the length direction. A moving screw is rotatably disposed in the slide groove. An adjusting handle is fixedly connected to one end of the moving screw and exposed on the main plate. A connecting block is threadedly connected to the surface of the moving screw. A threaded sleeve is provided on the surface of the connecting block. The connecting block and the moving screw are threadedly connected through the threaded sleeve. The connecting block can slide along the slide groove.
[0013] The connecting blocks are provided in two sets. The moving screw is a bidirectional threaded rod with a forward thread section and a reverse thread section at each end. The two sets of connecting blocks are respectively connected to the forward thread section and the reverse thread section through threaded sleeves, and the direction of the threaded sleeves of the two sets of connecting blocks matches the direction of the corresponding thread section. When the moving screw is driven to rotate by adjusting the handle, the two sets of connecting blocks can move towards or away from each other along the slide groove.
[0014] A return spring post is fixedly installed on the outer side of the connecting block. The return spring post is located between the connecting block and the locking plate and is used to provide a return compression force to the locking plate. The keel connection fixing assembly has two sets arranged vertically; the locking plates in the keel connection fixing assembly have two opposing sets, and the inner side of the locking plates clamps the main keel and the secondary keel.
[0015] As a further improvement of this utility model, the fixing clamp is provided in two sets facing each other. By turning the adjusting bolt, the two sets of fixing clamps can be driven to clamp or loosen the external frame and the ceiling.
[0016] As a further improvement to this utility model, when the adjusting bolts are turned, the two sets of fixing clamps can clamp or loosen the external frame and the ceiling, thereby fixing the connecting structure fixing components and achieving the initial fixing of the overall connecting structure, adapting to the size adjustment needs of different installation environments.
[0017] As a further improvement of this utility model, a reset spring post is provided between the connecting block and the locking plate to provide continuous reset compression force, ensuring that the locking plate always fits the keel surface in the clamped state, and compensating for loosening caused by vibration or load changes.
[0018] As a further improvement to this utility model, the cushioning pad is made of elastic material with anti-slip texture on the bottom surface and is installed on the surface of the locking plate to enhance the friction between it and the keel, prevent the keel from sliding after clamping, and at the same time buffer external impact and protect the paint layer on the surface of the keel from damage.
[0019] As a further improvement to the present invention, the keel connection and fixing assembly achieves clamping and fixing of the main keel and the secondary keel through a bidirectional threaded rod and a sliding structure.
[0020] As a further improvement to this utility model, the bidirectional thread design of the moving screw enables the two sets of connecting blocks to move synchronously in opposite directions, ensuring that the clamping force of the locking plate on the main and secondary keels is uniform and symmetrical, and adapting to the width differences of different specifications of keels.
[0021] As a further improvement to this utility model, the main keel and the secondary keel are placed perpendicularly and crosswise on the inner sides of two sets of opposing locking plates. By rotating the adjustment handle, the locking plates move inward to clamp the keel; rotating in the opposite direction will loosen them, thus achieving quick installation and position adjustment.
[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0023] 1. This utility model abandons the welding connection method and utilizes the connection structure fixing component and the keel connection fixing component in conjunction. By turning the adjusting bolt, the connection position between the connection structure and the ceiling or frame can be flexibly adjusted; by turning the adjusting handle, the relative position of the main and secondary keels can be easily changed, realizing precise adjustment of the installation position, meeting the needs of different construction scenarios, overcoming the defects of fixed installation position of welding connection, and improving the flexibility and accuracy of construction.
[0024] 2. Unlike bolt-fastened connections, this patented design eliminates the need for precise pre-measurement of the main and secondary keel hole positions. During connection, the main and secondary keels are placed between the locking plates, and clamping is achieved by rotating the adjusting handle, making operation simple and quick. Furthermore, the design of the fixing component's adjusting bolts in conjunction with the fixing clamps simplifies the connection steps with the external frame, significantly improving construction efficiency and reducing installation difficulty.
[0025] 3. Compared to snap-fit connections, the locking plate of this patented invention maintains a stable clamping force on the main and secondary keels under the action of the return spring column. The bidirectional threaded rod ensures uniform and symmetrical clamping force, greatly improving connection strength. Even under long-term load or vibration environments, it can effectively prevent loosening, eliminate safety hazards, and ensure the structural safety of the ceiling and partition wall frame.
[0026] 4. The moving screw of this utility model adopts a bidirectional threaded rod design, with two sets of connecting blocks connected to the forward and reverse threaded sections respectively. This ensures that the clamping force of the locking plate on the main and secondary keels is uniform and symmetrical, effectively adapting to the width differences of keels of different specifications. Stable connection can be achieved regardless of whether the keel is wide or narrow, reducing the hassle of replacing the connection structure due to different keel specifications.
[0027] 5. This utility model's connecting structure fixing component, through adjusting the bolts to drive the fixing clamps, allows for quick installation of the connecting structure onto the ceiling or frame, and can flexibly adapt to dimensional differences in different installation environments. The keel connecting fixing component utilizes an adjusting handle to rotate the moving screw, enabling rapid installation and position adjustment of the main and secondary keels, greatly improving construction efficiency.
[0028] 6. During the connection process, this utility model employs a unique clamping method that eliminates the need for open flame operations, thus avoiding damage to the paint layer on the keel surface and maintaining the keel's excellent corrosion resistance. Simultaneously, the buffer pad cushions external impacts during clamping and use, further protecting the keel, extending its service life, reducing later maintenance costs, and ensuring the overall quality of the building decoration project. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0030] Figure 2 This utility model Figure 1 Schematic diagram of the middle section;
[0031] Figure 3 This utility model Figure 2 Schematic diagram of the middle section;
[0032] Figure 4 This is a schematic diagram of the connection structure of the connecting block of this utility model.
[0033] Explanation of key symbols:
[0034] 1. Overall connecting structure; 2. Connecting structure fixing components; 21. Fixing bracket; 22. Connecting seat; 23. Fixing plate; 24. Adjusting bolt; 25. Fixing clamp; 3. Keel connecting fixing components; 31. Main plate; 32. Moving screw; 33. Adjusting handle; 34. Connecting block; 35. Threaded sleeve; 36. Return spring post; 37. Locking plate; 38. Buffer pad; 4. Main keel; 5. Secondary keel. Detailed Implementation
[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0036] Example 1:
[0037] Please combine Figures 1-4This embodiment proposes a connection structure between the main keel and the secondary keel of a steel painted keel, including a connection structure whole 1, which is composed of a connection structure fixing component 2 and a keel connection fixing component 3; when carrying out lightweight suspended ceiling, the entire connection structure is installed to the ceiling or frame through the connection structure fixing component 2.
[0038] The connecting structure fixing component 2 includes a fixing bracket 21, which is fixedly connected to the side wall of the main body plate 31. A connecting seat 22 is fixedly installed at the bottom end of the fixing bracket 21, and a fixing plate 23 is fixedly connected at the bottom end of the connecting seat 22. An adjusting bolt 24 passes through the surface of the fixing plate 23, and a fixing clip 25 is fixedly connected to the top end of the adjusting bolt 24.
[0039] In a further technical solution, the fixing clips 25 are provided in two sets facing each other. By turning the adjusting bolts 24, the two sets of fixing clips 25 can be driven to clamp or loosen the external frame and the ceiling.
[0040] In a further specific technical solution, by turning the adjusting bolt 24, the two sets of fixing clips 25 can clamp or loosen the external frame and the ceiling, thereby fixing the connecting structure fixing component 2 and achieving the initial fixing of the overall connecting structure 1, adapting to the size adjustment needs of different installation environments.
[0041] The keel connection and fixing assembly 3 includes a main plate 31, on which a sliding groove extending along the length direction is provided. A moving screw 32 is rotatably disposed in the sliding groove. An adjusting handle 33 is fixedly connected to one end of the moving screw 32 and exposed on the main plate 31.
[0042] The surface of the moving screw 32 is threadedly connected to a connecting block 34, and the surface of the connecting block 34 is provided with a threaded sleeve 35. The connecting block 34 and the moving screw 32 are threadedly connected through the threaded sleeve 35, and the connecting block 34 can slide along the slide groove.
[0043] As needs to be explained in detail, there are two sets of connecting blocks 34. The moving screw 32 is a bidirectional threaded rod with a forward thread section and a reverse thread section at both ends. The two sets of connecting blocks 34 are respectively threaded to the forward thread section and the reverse thread section through threaded sleeves 35, and the rotation direction of the threaded sleeves 35 of the two sets of connecting blocks 34 matches the rotation direction of the corresponding thread section. When the moving screw 32 is driven to rotate by adjusting the handle 33, the two sets of connecting blocks 34 can move towards or away from each other along the slide groove.
[0044] A reset spring post 36 is fixedly installed on the outer side of the connecting block 34. The reset spring post 36 is located between the connecting block 34 and the locking plate 37 and is used to provide a reset compression force to the locking plate 37.
[0045] In the specific implementation scheme, the reset spring post 36 is set between the connecting block 34 and the locking plate 37 to provide continuous reset compression force, ensuring that the locking plate 37 always fits the keel surface in the clamped state, and compensating for loosening caused by vibration or load changes.
[0046] In the specific technical solution, a buffer pad 38 is installed on the surface of the locking plate 37. The buffer pad 38 is made of elastic material and the bottom surface of the buffer pad 38 is provided with anti-slip texture to enhance the friction between the locking plate 37 and the main keel 4 and the secondary keel 5.
[0047] The preferred technical solution is that the cushioning pad 38 is made of elastic material and has anti-slip texture on the bottom surface. It is installed on the surface of the locking plate 37 to enhance the friction between the pad and the keel, prevent the keel from sliding after clamping, and buffer external impacts to protect the paint layer on the keel surface from damage.
[0048] In a further technical solution, the keel connection and fixing component 3 is provided with two sets arranged vertically; the locking plate 37 in the keel connection and fixing component 3 is provided with two opposing sets, and the inner side of the locking plate 37 clamps the main keel 4 and the secondary keel 5.
[0049] The keel connection and fixing assembly 3 achieves clamping and fixing of the main keel 4 and the secondary keel 5 through a bidirectional threaded rod and a sliding structure;
[0050] The main body plate 31 has a groove along its length, and a rotatable moving screw 32 with a two-way threaded rod is installed inside. Both ends are forward / reverse threaded sections, and an adjustment handle 33 exposed at one end is used to drive the screw to rotate. The two-way threaded design of the moving screw 32 enables the two sets of connecting blocks 34 to move synchronously in opposite directions, ensuring that the clamping force of the locking plate 37 on the main and secondary keels is uniform and symmetrical, and adapting to the width differences of different specifications of keels.
[0051] More specifically, in this technical solution, two sets of connecting blocks 34 are connected to the forward / reverse threaded sections of the screw via threaded sleeves 35. When the screw rotates, the two sets of connecting blocks 34 move towards or away from each other along the slide groove, causing the outer locking plates 37 to move synchronously. The main keel 4 and the secondary keel 5 are placed perpendicularly and crosswise inside the two sets of opposing locking plates 37. By rotating the adjusting handle 33, the locking plates 37 move inward to clamp the keel; rotating in the opposite direction loosens them, achieving quick installation and position adjustment.
[0052] To better understand the technical solution of this utility model, the working principle of the connection structure between the main keel and the secondary keel of the steel painted keel is as follows:
[0053] 1. Installation and fixing of the overall structure and fixing components
[0054] The overall connecting structure 1 consists of connecting structure fixing components 2 and keel connecting fixing components 3. When installing a lightweight suspended ceiling, the entire connecting structure is first installed to the ceiling or frame using the connecting structure fixing components 2.
[0055] When the adjusting bolt 24 is turned, the two sets of fixing clips 25 can clamp or loosen the external frame and the ceiling, thereby fixing the connecting structure fixing component 2 and realizing the initial fixing of the overall connecting structure 1, adapting to the size adjustment needs of different installation environments.
[0056] 2. Adjustment and clamping mechanism of keel connection components
[0057] The keel connection and fixing assembly 3 achieves clamping and fixing of the main keel 4 and the secondary keel 5 through a bidirectional threaded rod and a sliding structure;
[0058] The main plate 31 has a slide groove along its length, and a rotatable moving screw 32 with a bidirectional threaded rod is installed inside. Both ends are forward / reverse threaded sections, and an adjustment handle 33 exposed at one end is used to drive the screw to rotate.
[0059] Two sets of connecting blocks 34 are connected to the forward / reverse threaded sections of the screw via threaded sleeves 35. When the screw rotates, the two sets of connecting blocks 34 move towards or away from each other along the slide groove, causing the outer locking plates 37 to move synchronously. The main keel 4 and the secondary keel 5 are placed perpendicularly and crosswise inside the two sets of opposing locking plates 37. By rotating the adjusting handle 33, the locking plates 37 move inward to clamp the keel; rotating in the opposite direction loosens them, achieving quick installation and position adjustment.
[0060] 3. Return spring and cushioning anti-slip design
[0061] A reset spring post 36 is positioned between the connecting block 34 and the locking plate 37, providing continuous reset compressive force to ensure that the locking plate 37 remains in contact with the keel surface when clamped, compensating for loosening caused by vibration or load changes. A buffer pad 38, made of elastic material with anti-slip texture on its bottom surface, is installed on the surface of the locking plate 37 to enhance friction with the keel, preventing the keel from sliding after clamping, while also buffering external impacts and protecting the keel's paint layer from damage.
[0062] 4. Principle of bidirectional adjustment and adaptability
[0063] The bidirectional thread design of the moving screw 32 enables the two sets of connecting blocks 34 to move synchronously in opposite directions, ensuring that the clamping force of the locking plate 37 on the main and secondary keels is uniform and symmetrical, and adapting to the width differences of different specifications of keels.
[0064] In summary, the workflow is as follows:
[0065] Installation and fixing: The fixing clamp 25 is driven by adjusting bolt 24 to clamp the ceiling or frame, thus fixing the overall structure.
[0066] Keel positioning: Place the main keel 4 and the secondary keel 5 perpendicularly and intersectingly inside the locking plate 37;
[0067] Adjusting the clamping: Rotating the adjusting handle 33 causes the moving screw 32 to drive the connecting block 34 and the locking plate 37 to move towards each other, achieving stable clamping through the reset spring column 36 and the buffer pad 38;
[0068] Disassembly and adjustment: Turn the handle in the opposite direction to loosen the locking plate, which allows for quick disassembly of the keel or adjustment of its position, and it is highly reusable.
[0069] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A steel painted keel main keel and secondary keel connection structure, including the connection structure as a whole (1), characterized in that, The overall connection structure (1) is composed of a connection structure fixing component (2) and a keel connection fixing component (3); The keel connection fixing assembly (3) includes a main plate (31), on which a sliding groove extending along the length direction is provided. A moving screw (32) is rotatably disposed in the sliding groove. An adjusting handle (33) is fixedly connected to one end of the moving screw (32) and exposed on the main plate (31). The surface of the moving screw (32) is threadedly connected to a connecting block (34), and the surface of the connecting block (34) is provided with a threaded sleeve (35). The connecting block (34) and the moving screw (32) are threadedly connected through the threaded sleeve (35), and the connecting block (34) can slide along the groove. A reset spring post (36) is fixedly installed on the outside of the connecting block (34). The reset spring post (36) is located between the connecting block (34) and the locking plate (37) and is used to provide a reset compression force to the locking plate (37). A buffer pad (38) is installed on the surface of the locking plate (37).
2. The steel painted keel main keel and secondary keel connection structure as described in claim 1, characterized in that, The connecting structure fixing assembly (2) includes a fixing bracket (21), which is fixedly connected to the side wall of the main body plate (31). A connecting seat (22) is fixedly installed at the bottom end of the fixing bracket (21), and a fixing plate (23) is fixedly connected at the bottom end of the connecting seat (22). An adjusting bolt (24) passes through the surface of the fixing plate (23), and a fixing clip (25) is fixedly connected to the top end of the adjusting bolt (24).
3. The steel painted keel main keel and secondary keel connection structure as described in claim 1, characterized in that, The keel connection and fixing assembly (3) is provided with two sets arranged vertically; the locking plate (37) in the keel connection and fixing assembly (3) is provided with two sets opposite to each other, and the inner side of the locking plate (37) clamps the main keel (4) and the secondary keel (5).
4. The steel painted keel main keel and secondary keel connection structure as described in claim 2, characterized in that, The fixing clips (25) are provided in two sets facing each other. By turning the adjusting bolts (24), the two sets of fixing clips (25) can be driven to clamp or loosen the external frame and the ceiling.
5. The steel painted keel main keel and secondary keel connection structure as described in claim 1, characterized in that, The buffer pad (38) is made of elastic material, and the bottom surface of the buffer pad (38) is provided with anti-slip texture to enhance the friction between the locking plate (37) and the main keel (4) and the secondary keel (5).
6. The steel painted keel main keel and secondary keel connection structure as described in claim 1, characterized in that, The connecting block (34) is provided in two sets, and the moving screw (32) is a bidirectional threaded rod with a forward thread section and a reverse thread section respectively at both ends; The two sets of connecting blocks (34) are respectively threaded to the forward-rotating thread segment and the reverse-rotating thread segment through threaded sleeves (35), and the rotation direction of the threaded sleeves (35) of the two sets of connecting blocks (34) matches the rotation direction of the corresponding thread segment; When the moving screw (32) is driven to rotate by the adjusting handle (33), the two sets of connecting blocks (34) can move towards or away from each other along the slide groove.