Improved welding-free keel structure
By improving the keel structure, adopting corner grooves and protrusions and through holes, the problems of the existing keel connection method being singular and incompatible with the light steel keel system are solved, realizing more flexible connection and wiring, and improving construction efficiency and space utilization.
Patent Information
- Application Number
- CN202520009934.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Existing keel systems have limitations in connection methods and functions, making them difficult to adapt to the needs of buildings with limited space. They are also incompatible with existing light steel keel systems, and wiring is inconvenient.
Design a hollow keel body with inward recesses at the four corners of the cross-section to form corner grooves and protrusions, and pre-reserved through holes on the wide side. Adopt multiple connection methods to adapt to different building structures and space requirements, be compatible with existing light steel keel systems, and facilitate wire wiring.
It improves the flexibility and compatibility of keel connections, saves space, broadens the application range, and enhances construction efficiency and safety.
Smart Images

Figure CN223867571U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building technology, and more specifically to an improved weld-free keel structure. Background Technology
[0002] Keel is a material used in building and decoration for wall and ceiling structures. It is usually C-shaped or U-shaped in cross-section and has high strength and stability. It is widely used in building structures such as partition walls, ceiling soundproof walls, and lightweight walls in decoration, providing a lightweight, sturdy, and reliable support system for installing gypsum board, sound insulation materials, and other decorative materials.
[0003] However, existing square keel systems have limitations in terms of connection methods and functionality. In some buildings with limited space, thinner partition walls are needed to improve space utilization, but existing keels are too thick. Furthermore, existing keels lack compatibility and flexibility when used with existing light steel keel systems. In addition, wiring with existing keels is not convenient during construction. Utility Model Content
[0004] This invention provides an improved weld-free keel structure to solve the problems existing in the prior art.
[0005] To achieve the above objectives, this utility model provides an improved weld-free keel structure, comprising: a hollow keel body, with the four corners of the body's cross-section recessed inward to form corner grooves, and a groove provided at the center of the long side of the body's cross-section;
[0006] The two corner grooves on the two short sides of the cross-section respectively form protrusions;
[0007] Similarly, the corner groove and the groove form two protrusions on the long sides of the two cross sections respectively;
[0008] The corner grooves, grooves, and protrusions extend along the length of the body.
[0009] Preferably, the top surface of the main body is also provided with a through hole.
[0010] Preferably, the main body has a symmetrical cross-section.
[0011] Compared with the prior art, the present invention has the following advantages:
[0012] Improved keel connection flexibility: The keel is more flexible during installation, and multiple connection methods meet the needs of different building structures and spaces.
[0013] It can adapt to different wall thicknesses: the narrow and connected keel forms a thinner wall, which effectively saves space and broadens the application range of keel in different building scenarios.
[0014] It can be used in conjunction with existing light steel keel systems: the wide connection method is compatible with existing light steel keel systems, improving the efficiency of building construction and the overall quality.
[0015] Facilitates wiring: By pre-drilling holes on the wide side of the keel, the wiring process is simplified, improving construction efficiency and safety. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0017] Figure 1 The attached figure is a schematic diagram of the main structure of this utility model.
[0018] Figure 2 The attached figure is a schematic diagram of the structure of the first embodiment of this utility model.
[0019] Figure 3 The attached figure is a schematic diagram of the second embodiment of this utility model.
[0020] Figure 4 The attached figure is a structural schematic diagram of the third embodiment of this utility model.
[0021] Reference numerals: 1. Main body; 2. Protrusion; 3. Groove; 4. Through hole; 5. Corner groove. Detailed Implementation
[0022] 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.
[0023] First Embodiment
[0024] Please see the appendix Figure 1 The present invention discloses an improved weld-free keel structure, comprising: a hollow keel body 1, with the four corners of the cross-section of the body 1 recessed inward to form corner grooves 5, and a groove 3 provided at the center of the long side of the cross-section of the body 1.
[0025] The two corner grooves 5 on the two short sides of the cross-section respectively form protrusions 2;
[0026] Similarly, the corner groove 5 and the groove 3 form two protrusions 2 on the long sides of the two cross sections respectively;
[0027] The corner groove 5, groove 3 and protrusion 2 extend along the length of the main body 1.
[0028] To further optimize the above technical solution, a through hole 4 is also provided on the top surface of the main body 1.
[0029] Make wiring holes on the 50mm wide keel. Reserve wiring holes during partition wall construction to facilitate wire pulling and wiring, and improve construction safety.
[0030] To further optimize the above technical solution, the main body 1 is a one-piece molded structure.
[0031] To further optimize the above technical solution, the cross-section of the main body 1 is a left-right symmetrical structure.
[0032] The main body 1 is preferably 28×50mm in size and preferably made of metal materials, such as galvanized steel or aluminum alloy. The main body 1 can be customized to different lengths according to actual use. It is installed to form a frame according to design requirements. After the frame is formed, wall decoration or other construction can be carried out.
[0033] When the keel needs to be connected, it can be connected using connectors. The surface of the connector is two identical isosceles trapezoidal planar base plates. The edges of the base plates are provided with sliding grooves, and the middle of the base plates is provided with fastening devices. The sliding grooves can be inserted into the corner grooves 5 and 3 on the main body 1, and then the fastening devices can be used to fix them to achieve the fixation between the keels.
[0034] When using, plan and arrange the dimensions and distances of the keel according to the design drawings. Place the bottom edge of the top and bottom groove keel tightly against the horizontal baseline and fix it with expansion screws or glue. The top and bottom groove keel is "U" shaped. You can place the keel into the top and bottom groove keel in sequence and fix it with screws or connectors. The wires that need to be fixed are passed out through the wire hole. Finally, fix the decorative panel or other decorative materials to the keel structure.
[0035] Second Embodiment
[0036] The installation method of main body 1 is the same as that of the first embodiment. The difference from the first embodiment is that, please refer to the appendix. Figure 2 Place the two narrow sides (28mm) of the main body 1 at right angles to each other, and use connectors to embed the protrusions 2 of the two narrow sides to connect and fix them. At this time, the top and bottom groove keel can fit with the main body 1 with a gap to better adapt to the keel structure.
[0037] The partition wall formed by the keel placement structure in this embodiment is thinner than the partition wall formed by the traditional keel connection method, which can save space and improve space utilization. It is suitable for building scenarios where partitions are needed in small spaces or where thinner partition walls are required.
[0038] Third Embodiment
[0039] The installation method of main body 1 is the same as that of the first embodiment. The difference from the first embodiment is that, please refer to the appendix. Figure 3 Place the two wide sides (50mm) of the main body 1 at right angles to each other, and use connectors to embed any pair of protrusions 2 on the wide side to connect and fix them. Alternatively, two connectors can be used to fix all the opposite protrusions 2. At this time, the top and bottom groove keel can be fitted with the main body 1 with a gap. At this time, the size of the top and bottom groove keel is exactly the width of the commonly used top and bottom groove keel on the market.
[0040] This method allows the keel to form a more stable connection structure, which is suitable for situations that bear large loads, such as when heavy objects need to be suspended on the wall or when it needs to bear large lateral forces. Moreover, its 50mm width can be embedded into the existing light steel keel partition wall system's top and bottom groove keel, without the need for specially customized top and bottom groove keels, making installation more convenient.
[0041] Fourth embodiment
[0042] The installation method of main body 1 is the same as that of the first embodiment. The difference from the first embodiment is that, please refer to the appendix. Figure 4 Depending on the stress conditions and building layout requirements, the wide side (50mm) and narrow side (28mm) of the main body 1 can be placed at right angles to each other. Connectors are used to embed the narrow side protrusion 2 and any one of the wide side protrusions 2 for connection and fixation. At this time, the top and bottom groove keel can be fitted with the main body 1 with gaps. The connection between the wide and narrow sides makes the keel connection method more diversified. It can fix components such as switch boxes and faucets. The wide and narrow connection design can adapt to different spatial layout requirements. In some places where flexible adjustment is required, the combination of wide and narrow keels can be easily realized to achieve flexible structural design, increasing the diversity and flexibility of building structure. For example, in some buildings, different wall thicknesses may be required in different areas. This connection method can meet such diversified needs.
[0043] Compared to existing weld-free keel systems, this invention overcomes the problems of simple structure, fixed connection method, inconvenience in cooperating with existing light steel keel systems, and difficulty in meeting the requirements of different partition wall thicknesses by improving the shape and structure of the keel. It provides a more advantageous keel structure and more diversified connection combination methods, improves the efficiency of building construction and the flexibility of building structure design, and brings better application effects to the construction field.
[0044] Improved keel connection flexibility: The keel is more flexible during installation, and multiple connection methods meet the needs of different building structures and spaces.
[0045] It can adapt to different wall thicknesses: the narrow and connected keel forms a thinner wall, which effectively saves space and broadens the application range of keel in different building scenarios.
[0046] It can be used in conjunction with existing light steel keel systems: the wide connection method is compatible with existing light steel keel systems, improving the efficiency of building construction and the overall quality.
[0047] Facilitates wiring: By pre-drilling holes on the wide side of the keel, the wiring process is simplified, improving construction efficiency and safety.
[0048] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.
[0049] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An improved weld-free keel structure, characterized in that, include: The hollow keel body (1) has four corners of the cross-section of the body (1) recessed inward to form corner grooves (5), and a groove (3) is provided at the center of the long side of the cross-section of the body (1); The two corner grooves (5) on the two short sides of the cross section respectively form protrusions (2); Similarly, the corner groove (5) and the groove (3) form two protrusions (2) on the long sides of the two cross sections respectively; The corner groove (5), groove (3) and protrusion (2) extend along the length of the body (1).
2. The improved weld-free keel structure according to claim 1, characterized in that, The main body (1) is also provided with a through hole (4) on its top surface.
3. The improved weld-free keel structure according to claim 1, characterized in that, The main body (1) has a cross-section that is symmetrical from left to right.