Concave-shaped thin plate cold-bending sectional material

Abstract

The utility model belongs to the technical field of building profiles, and particularly relates to a U-shaped thin plate cold bending profile which is characterized by comprising a U-shaped main body formed by four flange plates and three webs in a cold bending mode, the four flange plates comprise two middle flange plates and two outer side flange plates, and the two middle flange plates and the two outer side flange plates are arranged on the U-shaped main body. The three sections of web plates comprise a middle web plate and two outer side web plates arranged below the two sides of the middle web plate. According to the U-shaped thin plate cold-bending section bar, the structural performance is optimized, a double-closed cavity is formed by combining the three sections of stepped staggered web plates and the four flange plates, the moment of inertia of the section is greatly improved, and the bending resistance is remarkably enhanced and is improved by more than 40% compared with a traditional C-shaped keel; a rectangular cavity formed by the middle web plate and the two outer side web plates can be used for hiding wire pipes, and square pipes can be inserted into the rectangular cavity for reinforcement, so that a'structure-wiring 'integrated design is realized.

Description

Technical Field

[0001] This utility model belongs to the field of building profile technology, and in particular relates to a U-shaped thin plate cold-formed profile. Background Technology

[0002] Cold-formed profiles are high-efficiency building materials formed by roll forming of metal sheets and strips. They are characterized by light weight, high strength, and flexible processing, and are widely used in building envelopes, interior decoration, and industrial equipment frames. Currently, common cold-formed profiles for construction mainly include C-shaped keels, square tube keels, and U-shaped channel steel.

[0003] In practical use, it has been found that traditional C-type keel has a low moment of inertia and insufficient bending resistance, which leads to easy deformation of interior partition walls and poor sound insulation. Although square tube keel has high strength, it has problems such as high cost, inability to conceal wiring, and the need for additional accessories to connect with wall panels. In addition, the installation holes of existing profiles need to be drilled on site, which results in low construction efficiency and difficulty in ensuring accuracy. At the same time, existing keels also require the use of corner brackets and screws for installation when making wall frames, which increases the installation time and material costs. Summary of the Invention

[0004] The purpose of this invention is to provide a U-shaped cold-formed profile that combines high moment of inertia, low cost, and quick installation, thereby solving the problems of poor concealment of existing keels, insufficient bending resistance, and low assembly efficiency.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] The present invention relates to a U-shaped thin sheet cold-formed profile, characterized in that it comprises a U-shaped main body formed by cold bending four flanges and three web sections. The four flanges include two middle flanges and two outer flanges, and the three web sections include a middle web section and two outer web sections disposed below both sides of the middle web section.

[0007] The two side edges of the intermediate web are respectively connected to one side edge of the two intermediate flanges, and the other side edge of each intermediate flange is connected to a side edge of an outer web. One side edge of each outer web is connected to an intermediate flange, and the other side edge is connected to an outer flange through a right-angle bend.

[0008] The intermediate flange and the outer flange are both located above the outer web.

[0009] Perforated flanges are provided at the two ends of the intermediate web and above the intermediate web.

[0010] The edges of the two outer flanges are provided with inward 180-degree hooks.

[0011] The right-angle bend is a 12mm x 12mm right-angle bend.

[0012] The two outer webs are respectively provided with diamond hook hook holes below them.

[0013] Advantages of this utility model:

[0014] (1) The U-shaped thin plate cold-formed profile of this utility model has optimized structural performance: by combining three-section stepped staggered web plates with four flange plates to form a double closed cavity, the moment of inertia of the section is greatly improved, the bending performance is significantly enhanced, and it is more than 40% higher than the traditional C-shaped keel.

[0015] (2) The U-shaped thin plate cold-formed profile of this utility model has a rectangular cavity formed by the middle web and the two outer webs, which can both conceal the conduit and insert square tubes for reinforcement, thus realizing the integrated design of "structure-wiring".

[0016] (3) The U-shaped thin plate cold-bending profile of this utility model has a revolutionary improvement in installation efficiency: prefabricated standardized holes, such as diamond hook hook holes and connecting holes, can eliminate the need for on-site drilling and improve construction accuracy by more than 50%.

[0017] (4) The concave thin plate cold-bending profile of this utility model has an original flange design and a diamond hook hook hole structure, which eliminates the screw fixing of the traditional corner code, reduces the frame installation time by 70%, and automatically matches the flashing edge when it is 180° flipped and matched, which has both waterproof and alignment functions.

[0018] (5) The U-shaped thin plate cold-formed profile of this utility model has outstanding cost advantages: by using cold-forming process and local reinforcement design, the cost of square tube keel material is reduced by 35%; the concealed load-bearing connection eliminates the need for additional accessories, and the overall installation cost is reduced by 25%;

[0019] (6) The concave-shaped thin plate cold-formed profile of this utility model has a multi-functional integrated design: the external convex / inner concave flashing design solves the problem of water seepage in the joint of traditional keel; the end flange is used as both a connector and a water-stop edge, realizing "one structure and three functions"; the 12mm square diamond hook hook hole is compatible with a variety of prefabricated building systems.

[0020] (7) The U-shaped thin plate cold-formed profile of this utility model has a wide material adaptability: the thickness range of 0.7mm-3.0mm is compatible with Q235 and above steel, which can meet different load requirements; the 150mm-300mm specification covers the mainstream partition wall thickness requirements;

[0021] (8) The concave-shaped thin plate cold-bending profile of this utility model is conducive to industrial production: the profile is formed by continuous cold bending in one step, and the hole position adopts the "punch first and then bend" process to ensure accuracy, which is suitable for large-scale standardized production.

[0022] (9) The concave-shaped thin plate cold-formed profile of this utility model achieves a balance of "lightweight and high strength" through geometric topology optimization, and is especially suitable for light steel keel systems in prefabricated buildings that require rapid installation, high precision and composite functions.

[0023] (10) The concave-shaped thin plate cold-formed profile of this utility model has a right-angle bend of 12mm x 12mm. Depending on the installation direction of the frame, a structural waterproof sealing accessory can be installed at the right-angle bend position to form waterproof and sealing measures. After assembling the frame back to back, decorative strips such as light strips can be installed in the right-angle bend groove to achieve lighting or decorative effects. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This utility model Figure 1 A cross-sectional view.

[0026] Figure 3 This is a cross-sectional view of the perforated flange of this utility model.

[0027] Figure 4 This is a perspective view of the two main borders and two secondary borders of this utility model, which are about to be connected to form a basic border unit. Detailed Implementation

[0028] The specific embodiments of this utility model are further described below with reference to the accompanying drawings.

[0029] like Figure 1-4 As shown, the U-shaped thin sheet cold-formed profile of this utility model is characterized by comprising a U-shaped main body formed by cold bending four flanges and three web sections. The four flanges include two middle flanges 3 and two outer flanges 4. The three web sections include a middle web 1 and two outer web sections 2 disposed below both sides of the middle web 1.

[0030] The two side edges of the intermediate web 1 are respectively connected to one side edge of the two intermediate flange plates 3, and the other side edge of each intermediate flange plate 3 is connected to one side edge of an outer web 2. One side edge of each outer web 2 is connected to an intermediate flange plate 3, and the other side edge is connected to an outer flange plate 4 through a right-angle bend 5.

[0031] The intermediate flange plate 3 and the outer flange plate 4 are both located above the outer web plate 2.

[0032] A perforated flange 8 is provided at the two ends of the intermediate web 1 and above the intermediate web 1.

[0033] The edges of the two outer flange plates 4 are provided with inward 180-degree hooks 6.

[0034] The right-angle bend 5 is a 12mm x 12mm right-angle bend.

[0035] The two outer webs 2 are respectively provided with diamond hook hook holes 7 below them.

[0036] The U-shaped thin plate cold-formed profile of this utility model, in terms of cross-section, is formed by cold bending four flanges and three webs (middle web 1 + two staggered outer webs 2) to form a double closed cavity. In terms of cross-section, the middle web 1 is connected to two middle flanges 3 on both sides, the two middle flanges 3 are connected to two outer webs 2 respectively, the two outer webs 2 are connected to two outer flanges 4 through 12mm x 12mm right angle bends 5, and the two outer flanges 4 are connected to inward 180-degree hooks 6 respectively.

[0037] The middle web 1 and the two outer webs 2 are arranged in a stepped staggered manner, and the moment of inertia of the section is increased through geometric deformation;

[0038] A perforated flange 8 can be selectively installed at the end of the intermediate web plate 1 in the convex direction.

[0039] In this invention, the intermediate web plate 1 with perforated flanges 8 at its ends can serve as a main frame. The intermediate web plate 1 without perforated flanges 8 at its ends can serve as a secondary frame. The cold-formed profile serving as the secondary frame has holes drilled at the ends of the intermediate web plate 1, which are then bolted together with the perforated flanges 8 of the cold-formed profile serving as the main frame to achieve a threaded connection between the main and secondary frames. Two main frames and two secondary frames can be connected to form a basic frame unit, serving as the structural foundation for frames, walls, and roofs. For example, the screw holes of the perforated flanges 8 at the ends of the intermediate web plate 1 of the symmetrically arranged main frames (left and right) are connected to the screw holes at the ends of the intermediate web plate 1 of the two symmetrically arranged secondary frames (front and rear) by screws, forming a box frame with concave sides.

[0040] The concave-shaped thin plate cold-formed profile of this utility model is formed by continuous cold bending in one step. The hole positions adopt the "punch first and then bend" process to ensure accuracy, which is suitable for large-scale standardized production.

[0041] The groove of the concave-shaped thin plate cold-formed profile of this utility model can be inserted into a standard square tube keel or a convex cold-formed profile to achieve a concealed load-bearing connection.

[0042] The two outer web plates 2 of this utility model have pre-set square diamond hook holes 7, which can be used for quick installation of diamond hooks.

[0043] The two outer flange plates 4 of this utility model are provided with inward 180-degree hooks 6 on their edges, which can achieve a flush fit. When the two cold-formed profiles are installed back to back, the outer flange plates 4 form a rectangular cavity with the middle web plate 1 (which strengthens the moment of inertia and can also be used for wiring or square tube structure reinforcement space). The hanging holes provided on the two outer web plates 2 cooperate with the diamond hook hook holes 7 to form a snap-fit ​​structure, so that the two frames become a back-to-back common force-bearing structure.

[0044] The present invention relates to a U-shaped thin plate cold-formed profile, which uses Q235 or higher steel with a thickness of 0.8 to 3.0 mm and a forming width of 150 mm to 300 mm.

[0045] The U-shaped thin plate cold-formed profile of this utility model has optimized structural performance: the combination of three-section stepped staggered web plates and four-flange plates forms a double closed cavity, which greatly improves the moment of inertia of the section and significantly enhances the bending performance, which is more than 40% higher than that of the traditional C-shaped keel; the rectangular cavity formed by the middle web plate 1 and the two outer web plates 2 can not only conceal the conduit, but also insert square tubes for reinforcement, realizing the integrated design of "structure-wiring".

[0046] Revolutionary improvement in installation efficiency: Prefabricated standardized holes, such as diamond hook hook hole 7 and connection holes, eliminate the need for on-site drilling and improve construction accuracy by more than 50%; The unique flange design combined with the diamond hook hook hole 7 structure eliminates the need for screw fixing of traditional corner brackets, reducing frame installation time by 70%; When 180° flipped and matched, the flashing edge automatically fits, combining waterproofing and alignment functions.

[0047] Significant cost advantages: Utilizing cold-bending forming technology and local reinforcement design, the cost is reduced by 35% compared to square tube keel materials. Concealed load-bearing connections eliminate the need for additional accessories, resulting in a 25% reduction in overall installation costs. Multifunctional integrated design: When the U-shaped thin plate cold-bending profiles are combined back-to-back or under individual concave frame stress, C-shaped, U-shaped, or square tubes can be placed only at the point of maximum bending moment in the cavity of the two concave frames or in the groove of a single concave frame for local reinforcement. This greatly saves the overall frame weight and reduces investment costs.

[0048] The convex / concave flashing design solves the problem of water seepage in traditional keel joints; the end flange flange serves as both a connector and a water-stop edge, achieving "one structure, three functions"; the 12mm square diamond hook with 7 hook holes is compatible with various prefabricated building systems.

[0049] Wide material adaptability: Thickness range of 0.7mm-3.0mm is compatible with Q235 and above steel, which can meet different load requirements; 150mm-300mm specifications cover the mainstream partition wall thickness requirements;

[0050] Industrial production friendly: The profiles are formed in one step through continuous cold bending, and the hole positions are made with a "punch first, bend later" process to ensure accuracy, which is suitable for large-scale standardized production; through geometric topology optimization, a balance between "lightweight and high strength" is achieved, which is especially suitable for light steel keel systems in prefabricated buildings that require rapid installation, high precision and composite functions.

Claims

1. A U-shaped thin sheet cold-formed profile, characterized in that, The body comprises a U-shaped structure formed by cold bending four flanges and three web sections. The four flanges include two middle flanges and two outer flanges. The three web sections include a middle web section and two outer web sections located below the middle web section on both sides. The two side edges of the intermediate web are respectively connected to one side edge of the two intermediate flanges, and the other side edge of each intermediate flange is connected to a side edge of an outer web. One side edge of each outer web is connected to an intermediate flange, and the other side edge is connected to an outer flange through a right-angle bend. The intermediate flange and the outer flange are both located above the outer web.

2. The U-shaped thin sheet cold-formed profile according to claim 1, characterized in that, Perforated flanges are provided at the two ends of the intermediate web and above the intermediate web.

3. The U-shaped thin sheet cold-formed profile according to claim 1, characterized in that, The edges of the two outer flanges are provided with inward 180-degree hooks.

4. The U-shaped thin sheet cold-formed profile according to claim 1, characterized in that, The right-angle bend is a 12mm x 12mm right-angle bend.

5. The U-shaped thin sheet cold-formed profile according to claim 1, characterized in that, The two outer webs are respectively provided with diamond hook hook holes below them.

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