C-shaped steel with enhanced fastening force
By forming a multi-layer bending structure on the C-shaped steel and combining it with stop grooves and welding, the problem of loose fasteners is solved, and a firm fixation and anti-leakage effect under vibration and external pressure are achieved.
Patent Information
- Application Number
- CN202480012068.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-02-09
- Filing Date
- 2024-02-08
- Publication Date
- 2025-09-19
AI Technical Summary
The fasteners of traditional C-shaped steel are prone to loosening or separation when exposed to vibration, wind pressure or temperature changes, resulting in loose fixation and the risk of water leakage.
By forming a multi-layer bending structure on the side panel of the C-shaped steel, including an upper horizontal plate, an upper vertical plate, a first and a second inner horizontal plate, and fixing the fasteners by welding or stop grooves, double fastening of the fasteners and prevention of loosening are achieved.
The fastening force is enhanced to prevent the fasteners from separating under vibration, wind pressure and external pressure, ensuring that the panel is firmly fixed and avoiding water leakage.
Smart Images
Figure CN120677288A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a C-shaped steel with enhanced fastening force, and more specifically, to a C-shaped steel with enhanced fastening force, which is connected to the C-shaped steel using fasteners (fastening screws, bolts, etc.) in order to support and fix the roof materials, walls, steel structures and solar structures of a building (hereinafter referred to as "panels"). At this time, even if the panels are subjected to vibration, wind pressure or external pressure, or shrinkage and expansion due to seasonal temperature changes, the fasteners fastened to the C-shaped steel will not separate and will remain tightly connected, thereby enabling the panels to be fixed. Background Art
[0002] Generally speaking, steel sections refer to rod-shaped rolled materials with various cross-sectional shapes, which are mainly used for steel structure purposes such as fixed frames of building exterior walls.
[0003] The manufacturing process for steel sections is as follows: First, molten steel is poured into a prismatic mold to form an ingot. After impurities are removed and densification is completed, the ingot is reheated in a furnace and fed into a rolling mill, where it passes through multiple forming rollers to form products of various cross-sectional shapes.
[0004] Then according to its cross-sectional shape, it can be divided into equilateral Steel, unequal sides Steel, H-steel, I-steel, Types of steel include: section steel, Z section steel, T section steel, C section steel, etc.
[0005] The tensile strength of conventional structural rolled steel is approximately 40 to 60 kg / mm². Commercially available steel sections are typically 35 to 12 m long.
[0006] Among them, C-shaped steel is mainly used as a structure to support the fastening objects connected to it.
[0007] Figure 1 This diagram illustrates the process of tightening a nut onto a bolt using an electric screwdriver in a conventional C-shaped steel structure.
[0008] like Figure 1 As shown, the upper portion of the C-shaped steel is fastened to the angle member to be fastened by bolts and nuts.
[0009] To achieve tightening, an electric screwdriver is usually used, the tool rotation axis of which is linear.
[0010] Traditional C-shaped steel has fastening holes formed on the upper inner portion. When using an electric screwdriver for fastening, the tool's rotating axis interferes with the lower end of the C-shaped steel, making the operation very inconvenient.
[0011] On the other hand, the C-shaped steel mainly receives vertical load from the fastening object fastened to the upper portion.
[0012] To support a greater vertical load, the thickness of the vertical member of the C-section steel needs to be increased, but this increases the cost.
[0013] Furthermore, the structure disclosed in Korean Patent No. 10-2333509, "Method for Installing a Solar Energy Structure on an Existing Steel Structure Using T-PARA Bolts," is a technology that allows a rotating bracket fastened to the end of the bolt to be easily folded or unfolded depending on whether the cover member moves relative to the bolt. However, this has the following problems: the tightening of the T-PARA bolt is relatively complicated, and the rotating bracket installed at the end of the bolt may move and loosen due to vibration, compression, and expansion, thereby weakening the tightening force.
[0014] In addition, the structure disclosed in Korean Patent No. 10-1492412, "Sandwich Panel Structure for Construction", is a fastener a for fastening a panel to a C-shaped steel b. Figure 2 As shown, the structure is simply connected and fixed to the surface by screwing. Therefore, there is a problem that the thread groove connected to the C-shaped steel becomes wider due to vibration or contraction and expansion, causing the fastener to separate, resulting in insufficient fastening force.
[0015] As described above, the following problems exist in the combination of traditional C-shaped steel and its components: First, the cross-sectional thickness of the C-shaped steel is about 1.2T to 3.2 mm. When fastening screws are used for fastening, the fastening cross-sectional area is small. Therefore, under the action of continuous external pressure (such as vibration, wind pressure, etc.), the screws loosen, resulting in water leakage and loose fastening.
[0016] Therefore, although the Korean registered utility model No. 20-0493917 "C-shaped steel for easy fastening work" has been developed, Figure 3 As shown, the structure is a technology in which the lengths of the upper bending surface and the lower bending surface of the C-shaped steel coupled to the panel are formed to be different, so that the nut can be easily assembled to the fastener coupled to the C-shaped steel by an electric tool. However, it has the following problems: it has the inconvenience of occupying more working space during on-site setting, and it is large in size during storage, making it difficult to store in large quantities. Summary of the Invention
[0017] Problems to be solved by the invention
[0018] The present invention is proposed to solve the above-mentioned problems. Its purpose is: when the panel is fastened to the C-shaped steel by fasteners, even if vibration, compression and expansion, wind pressure and external pressure occur, the fasteners will not fall off or separate from the C-shaped steel, and can be firmly fastened, thereby achieving the fixation of the panel and enhancing the fastening force.
[0019] In addition, the object of the present invention is to solve the water leakage problem by using the thread groove for inserting the fastener because the C-shaped steel according to the present invention will not cause the fastener to loosen or fall off due to external pressure.
[0020] Furthermore, the object of the present invention is to firmly fix the panel by fasteners when the C-shaped steel according to the present invention is used for building interior decoration and structural purposes, mainly for roofing materials, wall partitions, etc.
[0021] Means used to solve problems
[0022] In order to achieve the above object, the structure of the C-shaped steel with enhanced fastening force according to the present invention is described in detail with reference to the accompanying drawings as follows.
[0023] like Figure 4 As shown, the C-shaped steel 100 with enhanced fastening force according to the present invention is characterized by:
[0024] The upper horizontal plate 20 is bent from the upper side of the side panel 10, the upper vertical plate 30 is bent toward the lower side of the upper horizontal plate 20, the first inner horizontal plate 40 is bent toward the inner side of the upper vertical plate 30 and is spaced from the side panel 10, the lower horizontal plate 50 is bent from the lower side of the side panel 10, and the lower vertical plate 60 is bent toward the upper side of the lower horizontal plate 50, thereby enhancing the fastening force of the fastener 110.
[0025] In addition, the present invention is characterized in that the first inner horizontal plate 40 is closely attached to the side panel 10 and integrated with the side panel 10 by welding.
[0026] In addition, the present invention is characterized in that it is formed by an upper horizontal plate 20 bent from the upper side of the side panel 10, an upper vertical plate 30 bent toward the lower side of the upper horizontal plate 20, a first inner horizontal plate 40 bent toward the inner side of the upper vertical plate 30, a lower horizontal plate 50 bent from the lower side of the side panel 10, and a lower vertical plate 60 bent toward the upper side of the lower horizontal plate 50.
[0027] Furthermore, a first stopping groove 70 is formed on the side panel 10 opposite to the first inner horizontal plate 40 , so that the end side of the first inner horizontal plate 40 is inserted into the first stopping groove 80 and is movably locked.
[0028] In addition, the present invention is characterized in that: the C-shaped steel with enhanced fastening force is formed by an upper horizontal plate 20 bent from the upper side of the side panel 10, an upper vertical plate 30 bent toward the lower side of the upper horizontal plate 20, a first inner horizontal plate 40 bent toward the inner side of the upper vertical plate 30, a lower horizontal plate 50 bent from the lower side of the side panel 10, a lower vertical plate 60 bent toward the upper side of the lower horizontal plate 50, and a second inner horizontal plate 70 bent toward the inner side of the lower vertical plate 60.
[0029] Furthermore, a first stopping groove 80 is formed on the side of the side panel 10 opposite to the first inner horizontal plate 40 , so that the end side of the first inner horizontal plate 40 is inserted into the first stopping groove 80 and is movably locked.
[0030] A second stopping groove 90 is formed on the side panel 10 opposite to the second inner horizontal plate 70 , so that the end side of the second inner horizontal plate 70 is inserted into the second stopping groove 90 and is movably locked therein.
[0031] In addition, the present invention is characterized in that the fastener 110 is threadedly coupled to the upper horizontal plate 20 and the first inner horizontal plate 40, thereby enhancing the fastening force of the fastener (110) and preventing the fastener 110 from falling off due to vibration, wind pressure and external pressure.
[0032] Effects of the Invention
[0033] The present invention having the above-described features has the following effects: when panels constituting roof materials and walls, steel structures, solar structures, etc. are coupled to C-shaped steel, since the fasteners fastened to the C-shaped steel are doubly coupled to the upper horizontal plate and the first inner horizontal plate in the form of threads, the fastening force is enhanced, thereby preventing separation and falling off due to vibration, wind pressure, external pressure, etc., thereby improving the fixing force.
[0034] In addition, the present invention has the following effects: since the first inner horizontal plate is inserted into and stuck in the first stop groove formed on the side panel of the C-shaped steel, even if it is subjected to vibration, wind pressure and external pressure, the first inner horizontal plate moves in the first stop groove, so the fastener will not be separated from the threaded groove that is threadedly connected to the upper horizontal plate and the first inner horizontal plate, but can firmly maintain the fixing force.
[0035] Not only that, the present invention has the following effect: even when subjected to vibration and external pressure, the fastener will not separate from the thread groove of the upper horizontal plate and the first inner horizontal plate threadedly coupled to the C-shaped steel, but will be firmly fixed in a threaded manner, thereby preventing water leakage through the thread groove. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] Figures 1 to 3is a cross-sectional view showing a conventional C-shaped steel.
[0037] Figure 4 1 and 2 are a cross-sectional view and a perspective view showing a C-shaped steel according to the present invention.
[0038] Figure 5 is a cross-sectional view showing another first embodiment of a C-shaped steel according to the present invention.
[0039] Figure 6 is a cross-sectional view showing another second embodiment of a C-shaped steel according to the present invention.
[0040] Figure 7 is a cross-sectional view of an embodiment of a roof panel and a sandwich panel for C-section steel according to the present invention.
[0041] Figure 8 is a perspective view of an embodiment of a wall panel and a bottom panel for a C-shaped steel according to the present invention. DETAILED DESCRIPTION
[0042] The detailed description of the present invention described below will refer to the accompanying drawings that illustrate specific embodiments of the present invention as examples. These embodiments will be described in sufficient detail to enable those skilled in the art to implement the present invention accordingly. It should be understood that the various embodiments of the present invention, although different from each other, are not necessarily mutually exclusive. For example, the specific shapes, structures and characteristics described herein are for one embodiment and can be implemented by other embodiments without departing from the technical idea and scope of the present invention. In addition, it should be understood that the position or configuration of individual constituent elements in each disclosed embodiment can also be changed without departing from the technical idea and scope of the present invention. Therefore, the following detailed description should not be understood as limiting, and the scope of protection of the present invention, including the content for which it is claimed and its equivalent scope, is limited only by the appended claims. Similar figure marks in the figures refer to the same or similar functions in multiple aspects.
[0043] The main technical idea of the C-shaped steel with enhanced fastening force according to the present invention is that when the panels 120, 130, 140, and 150 are fastened to the C-shaped steel 100 by the fastener 110, not only the fastener 110 is strengthened so that it will not separate from the C-shaped steel 100 but the fastening force is firmly maintained, but also the thread groove coupled to the fastener 110 prevents water leakage from occurring.
[0044] pass Figure 4 The structure of the C-shaped steel 100 according to the present invention will be described in detail as follows.
[0045] like Figure 4As shown, the cross-section of the C-shaped steel 100 according to the present invention is approximately C-shaped and includes a side panel 10 , an upper horizontal panel 20 , an upper vertical panel 30 , a first inner horizontal panel 40 , a lower horizontal panel 50 and a lower vertical panel 60 .
[0046] The side panels 10 are formed in a vertical direction and are mainly used to bear loads in the vertical direction.
[0047] The C-shaped steel 100 constructed as described above is bent for the first time from the upper side of the processed side panel 10 to form the upper horizontal panel 20. Furthermore, the upper horizontal panel 20 is bent for the second time to form the upper vertical panel 30. Furthermore, the upper vertical panel 30 is bent for the third time to form the first inner horizontal panel 40.
[0048] At this time, the first inner horizontal plate 40 is not tightly fitted to the side panel 10, but a certain gap is left. Preferably, by forming the 20-50 mm gap, the first inner horizontal plate 40 can move up and down.
[0049] Furthermore, the side panel 10 is bent from the lower side for the first time to form a lower horizontal panel 50 . Furthermore, the lower horizontal panel 50 is bent again for the second time to form a lower vertical panel 60 .
[0050] like Figure 7 As shown, when the roof panel 120 or the sandwich panel 130 is fastened to the C-shaped steel 100 constructed as described above by the fasteners 110, fastening is achieved. That is, when the panels 120 and 130 are coupled to the C-shaped steel 100 by the fasteners 110, the fasteners 110 are coupled by screws through the upper horizontal plate 20 (bent from the upper side of the side plate 10) constituting the C-shaped steel 100 and the first inner horizontal plate 40 formed on the lower side of the upper horizontal plate 20.
[0051] As described above, the fastener 110 double-fastens the upper horizontal plate 20 and the first inner horizontal plate 40 of the C-shaped steel 100 , and thus the fastener 110 is firmly fastened to the C-shaped steel 100 .
[0052] Therefore, the fasteners 110 fastened to the upper horizontal plate 20 and the first inner horizontal plate 40 will not fall off from the thread groove even when subjected to vibration, wind pressure, external pressure, etc. In addition, since the fasteners 110 are firmly fastened to the thread groove, water leakage through the thread groove will not occur.
[0053] Moreover, when the C-shaped steel 100 is subjected to vibration, wind pressure, external pressure, etc., since there is a certain gap between the first internal horizontal plate 40 and the side panel 10, and since the first internal horizontal plate 40 moves up and down, the fastener 110 will not be affected by external factors and will be firmly fastened to the thread groove.
[0054] Furthermore, although not shown in the figures, in the aforementioned C-shaped steel 100, the first inner horizontal plate 40 can also be tightly fitted to the side panel 10 without any gaps and secured by welding. Specifically, when the first inner horizontal plate 40 is welded to the side panel 10, even if it is subjected to vibration, it will not move up and down, remaining fixed. Furthermore, because the upper horizontal plate 20 is integrally formed with the first inner horizontal plate 40, the fastener 110 is doubly securely fastened, preventing the fastener 110 from separating or falling out of the thread groove.
[0055] Regarding another first embodiment of the present invention, Figure 5 The structure of the C-shaped steel 100 will be described in detail below.
[0056] The side panel 10 is first bent from the upper side to form the upper horizontal panel 20 . Furthermore, the upper horizontal panel 20 is secondly bent toward the lower side to form the upper vertical panel 30 .
[0057] Furthermore, the upper vertical plate 30 is bent toward the inner side for the third time to form a first inner horizontal plate 40 .
[0058] Furthermore, the side panel 10 is first bent from the lower side to form a lower horizontal panel 50 . Furthermore, the lower horizontal panel 50 is second bent toward the upper side to form a lower vertical panel 60 .
[0059] In the C-shaped steel 100 formed as described above, a first stopper groove 70 is formed on the side panel 10 opposite to the first inner horizontal plate 40. The end of the first inner horizontal plate 40 is inserted into the first stopper groove 80 and is movably caught.
[0060] The main technical concept of the first embodiment of the present invention constructed as described above is that no gap is left between the first inner horizontal plate 40 and the side panel 10, thereby preventing the first inner horizontal plate 40 from being completely displaced downward due to vibration or external impact.
[0061] That is, the first inner horizontal plate 40 is configured to move up and down only in the first stopper groove 80 , thereby further increasing the fastening force of the fastener 110 .
[0062] Another second embodiment of the present invention is to Figure 6, the structure of the C-shaped steel 100 is described in detail as follows.
[0063] The side panel 10 is first bent from the upper side to form the upper horizontal panel 20 . Furthermore, the upper horizontal panel 20 is secondly bent toward the lower side to form the upper vertical panel 30 .
[0064] Furthermore, the upper vertical plate 30 is bent toward the inner side for the third time to form a first inner horizontal plate 40 .
[0065] Furthermore, the side panel 10 is first bent from the lower side to form a lower horizontal panel 50 . Furthermore, the lower horizontal panel 50 is second bent toward the upper side to form a lower vertical panel 60 .
[0066] In the C-shaped steel 100 formed as described above, a first stopper groove 70 is formed on the side panel 10 opposite to the first inner horizontal plate 40. The end of the first inner horizontal plate 40 is inserted into the first stopper groove 80 and is movably caught.
[0067] In addition, a second stopper groove 90 is formed on the side of the side panel 10 opposite to the second inner horizontal plate 70. And, the end side of the second inner horizontal plate 70 is inserted into the second stopper groove 90 and is movably caught.
[0068] The main technical concept of the second embodiment of the present invention, constructed as described above, is that a first internal horizontal plate 40 and a second internal horizontal plate 40 are formed on the upper and lower sides of the side panel 10, respectively, so that the C-shaped steel 100 can be easily installed according to the arrangement of the panels 120, 130, 140, and 150. Furthermore, the fasteners 110 can be configured to simultaneously fasten the upper first internal horizontal plate 40 and the lower second internal horizontal plate 70 to the panels 120, 130, 140, and 150.
[0069] The structures of the first and second embodiments of the present invention described above can also achieve the panels 120 , 130 , 140 , 150 and the C-shaped steel 100 being firmly fastened by the fasteners 110 by using the aforementioned technology.
[0070] Furthermore, according to the construction drawings of the embodiment of the present invention, referring to Figure 8 In the following description, not only embodiments applicable to the aforementioned roof panel 120 and sandwich panel 130 are described, but also embodiments applicable to the wall panel 140 and bottom panel 150 are described.
[0071] The above description is based only on the preferred embodiments of the present invention, but the technical concept of the present invention is not limited thereto. Various deformations or modifications can be made within the scope of the claims, which is obvious to those skilled in the art, and such deformations or modifications should be included in the scope of protection of the appended claims.
Claims
1. A C-shaped steel with enhanced fastening force, characterized in that: The C-shaped steel with enhanced fastening force is formed by an upper horizontal plate (20) bent from the upper side of the side panel (10), an upper vertical plate (30) bent toward the lower side of the upper horizontal plate (20), a first inner horizontal plate (40) bent toward the inner side of the upper vertical plate (30) and spaced apart from the side panel (10), a lower horizontal plate (50) bent from the lower side of the side panel (10), and a lower vertical plate (60) bent toward the upper side of the lower horizontal plate (50), so that the C-shaped steel with enhanced fastening force can enhance the fastening force of the fastener (110) when it is combined with the panel (120), the panel (130), the panel (140), and the panel (150).
2. The C-shaped steel with enhanced fastening force according to claim 1, characterized in that: The first inner horizontal plate (40) is tightly fitted to the side panel (10) and integrated by welding.
3. The C-shaped steel with enhanced fastening force according to claim 1, characterized in that: The C-shaped steel with enhanced fastening force is formed by an upper horizontal plate (20) bent from the upper side of the side panel (10), an upper vertical plate (30) bent toward the lower side of the upper horizontal plate (20), a first inner horizontal plate (40) bent toward the inner side of the upper vertical plate (30), a lower horizontal plate (50) bent from the lower side of the side panel (10), and a lower vertical plate (60) bent toward the upper side of the lower horizontal plate (50), and a first stop groove (70) is formed on the side of the side panel (10) opposite to the first inner horizontal plate (40), so that the end side of the first inner horizontal plate (40) is inserted into the first stop groove (80) and is clamped in a movable manner.
4. The C-shaped steel with enhanced fastening force according to claim 1, characterized in that: The C-shaped steel with enhanced fastening force is formed by an upper horizontal plate (20) bent from the upper side of the side panel (10), an upper vertical plate (30) bent toward the lower side of the upper horizontal plate (20), a first inner horizontal plate (40) bent toward the inner side of the upper vertical plate (30), a lower horizontal plate (50) bent from the lower side of the side panel (10), a lower vertical plate (60) bent toward the upper side of the lower horizontal plate (50), and a second inner horizontal plate (70) bent toward the inner side of the lower vertical plate (60), and a first stop groove (80) is formed on the side of the side panel (10) opposite to the first inner horizontal plate (40), so that the end side of the first inner horizontal plate (40) is inserted into the first stop groove (80) and is clamped in a movable manner. A second stop groove (90) is formed on the side of the side panel (10) opposite to the second inner horizontal plate (70), so that the end side of the second inner horizontal plate (70) is inserted into the second stop groove (90) and is movably clamped.
5. The C-shaped steel with enhanced fastening force according to claims 1 to 4, characterized in that: The fastener (110) is threadedly coupled to the upper horizontal plate (20) and the first inner horizontal plate (40), thereby enhancing the fastening force of the fastener (110) and preventing the fastener (110) from falling off due to vibration, wind pressure and external pressure.