A fixed buckle device for increasing the section of an i-beam
By using a clamping device to increase the cross-section of I-beams, the problems of inaccurate positioning and inconvenience in the construction of welded steel components in steel structure projects are solved. This achieves efficient, safe, and low-cost steel structure reinforcement and is suitable for increasing the cross-section of I-beams in steel structure projects.
Patent Information
- Application Number
- CN202410204747.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-25
- Publication Date
- 2026-05-15
- Estimated Expiration
- 2044-02-25
AI Technical Summary
In steel structure buildings, increasing the cross-section and welding steel components presents construction difficulties, especially problems such as inaccurate positioning, inconvenient construction, low efficiency, high cost and low safety.
An I-beam cross-section enlargement fixing buckle device is adopted. Through the combination design of steel support plate, movable support component and double threaded nut, the welded steel component is accurately connected and safely fixed to the I-beam. The movable support component can be adjusted to adapt to the use of I-beams with different cross-sections.
It improved welding quality and safety, reduced construction costs, increased construction efficiency, eliminated the need for crane lifting, and achieved green and environmentally friendly construction.
Smart Images

Figure CN117927057B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building construction, specifically to a fixing buckle device for increasing the cross-section of I-beams in steel structure engineering. Background Technology
[0002] When old steel structures can no longer meet new usage requirements or when usage conditions change, and when the current strength, stiffness, and structural performance stability of steel structure buildings can no longer meet normal usage requirements, it is necessary to upgrade outdated steel structures with reinforcement technologies to prevent steel structure accidents.
[0003] Enlarging the cross-section is a basic reinforcement method, and among these methods, increasing the cross-section through welding is the most traditional and direct choice for steel structure reinforcement. In actual construction, due to the large weight of the new steel components, tools are needed to lift them to the location of the original steel components for welding. However, when constructing in existing buildings, cranes are limited by the building's roof and cannot lift the new steel components into place. Using small lifting tools such as hoists cannot maintain the accuracy and continuity of the new steel components' placement, resulting in low efficiency and certain safety hazards. Summary of the Invention
[0004] To address the construction difficulties encountered when increasing the cross-section of I-beams and welding steel components, this invention provides a fixing buckle device for increasing the cross-section of I-beams. This device solves the problem of temporary fixing of the welded steel components before welding, and can be reused. It also solves the problems of inaccurate positioning, inconvenient construction, high energy consumption, slow efficiency, high cost, and low safety in the traditional construction methods.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A fixing buckle device for increasing the cross-section of an I-beam is provided. It is symmetrically arranged on both sides of the steel beam, with a minimum of two sets (four) and the number of fixing buckle devices is increased according to the length of the steel beam.
[0007] A fixing buckle device for increasing the cross-section of an I-beam is characterized by comprising a steel support plate, a movable support component, and a double-threaded nut; the movable support component and the double-threaded nut fix the steel support plate to the I-beam.
[0008] The steel pallet is composed of an L-shaped steel pallet and a movable support component fixed to the track.
[0009] The L-shaped steel support plate is made of steel plate in an L-shape. The bottom end of the L-shaped steel support plate hooks and clamps the welded T-shaped steel component. The steel support plate is clamped and fixed to the I-beam by movable support components and double threaded nuts, thus forming an accurate connection and safe fixation between the welded steel component and the I-beam, ensuring the welding quality and safety of the two steel components.
[0010] The movable support component fixing track has wavy bolt holes set along the center of the front of the L-shaped steel support plate. The bolt holes are equipped with internal threads, which can realize the insertion and fixing of double threaded nuts and prevent slippage. At the same time, the track can realize the movable adjustment of the position of the movable support component, further ensuring the stability and safety of the welded steel component and the fixing of the I-beam, as well as the applicability of I-beams with different cross-sections.
[0011] The movable support component is welded from angle steel and outer threaded rods, with two components used in a set. The outer threaded rod connects to the steel support plate via a double-threaded nut, and the overall position of the locking device is fixed by the snap-fit action between the angle steel and the I-beam. The movable support component can be adjusted in position via a track within the steel support plate to accommodate I-beams of different cross-sections.
[0012] The double-threaded nut consists of inner and outer threaded rods and a nut. The inner thread of the inner threaded rod connects to the outer threaded rod in the movable support component, while the outer thread connects to the wavy bolt hole of the fixing track in the movable support component of the steel pallet. This dual connection and fixation with both the steel pallet and the movable support component is the core design concept of this fixing clip device. The inner and outer threaded rods are equipped with connecting nuts for easy tightening of the double-threaded nut.
[0013] This invention provides a fixing clip device for increasing the cross-section of an I-beam. It has the following beneficial effects:
[0014] This invention solves many shortcomings and problems in the traditional steel structure enlargement method construction process. First, the use of double-threaded nuts (both internal and external threads) achieves a reliable connection with the steel support plate via the external thread and with the movable support component via the internal thread, realizing dual connection and fixation, increasing the stability and safety of the connection. Second, the use of a snap-fit fixing method between the movable support component and the L-shaped steel support plate achieves both secure fixation and avoids damage to the steel itself caused by welding or temporary fixing of the steel components and I-beams, thus improving the quality and safety of the steel structure. Third, the I-beam enlargement section fixing buckle device of this invention is reusable, easy to operate, low in cost, and highly efficient. Fourth, using this I-beam enlargement section fixing buckle device avoids continuous lifting by cranes or other lifting tools; only a single lifting and positioning is required, achieving cost reduction and energy saving. The overall device of this invention achieves multiple indicators such as safety and reliability, ease of use, improved quality, increased efficiency, reduced cost, and environmental friendliness. Attached Figure Description
[0015] Figure 1 This is a perspective view of the present invention;
[0016] Figure 2This is a front view of the present invention;
[0017] Figure 3 This is a side view of the present invention;
[0018] Figure 4 This is a schematic diagram of the overall fixing buckle device of the present invention;
[0019] Figure 5 This is a schematic diagram of the steel pallet of the present invention;
[0020] Figure 6 This is a schematic diagram of the movable support component of the present invention;
[0021] Figure 7 This is a schematic diagram of the double-threaded nut of the present invention.
[0022] In the diagram, 1. Steel pallet; 101. L-shaped steel pallet; 102. Fixed track for movable support component; 2. Movable support component; 201 Angle steel; 202. Outer threaded rod; 3. Double threaded nut; 301. Inner and outer threaded rod; 302. Nut; 4. I-beam; 5. T-shaped steel component. Detailed Implementation
[0023] like Figure 1-7 As shown, this embodiment of the invention provides a fixing buckle device for increasing the cross-section of an I-beam, characterized by being composed of a steel support plate 1, an L-shaped steel support plate 101, a movable support component fixing track 102, a movable support component 2, an angle steel 201, an outer threaded rod 202, a double threaded nut 3, an inner and outer threaded rod 301, and a nut 302.
[0024] refer to Figure 1-4 The I-beam 4 and T-shaped steel component 5 ensure the stability and safety of the connection and fixation of the two steel components. The steel support plate 1 and the movable support component 2 are connected by double threaded nuts 3, and under the action of the combined force, they complete the clamping and fixing of the I-beam 4 and the T-shaped steel component 5.
[0025] refer to Figure 1 , 5The steel support plate 1 is composed of an L-shaped steel support plate 101 and a movable support component fixing track 102. The L-shaped steel support plate 101 is made of steel plate and is L-shaped. The bottom end of the L-shaped steel support plate hooks onto the T-shaped steel component 5, and the movable support component 2 and double-threaded nuts 3 are used to fix the steel support plate 1 to the I-beam 4, thus forming an accurate connection and safe fixation between the T-shaped steel component 5 and the I-beam 4, ensuring the welding quality and safety of the two steel components. The movable support component fixing track 102 has a wavy bolt hole set along the center of the front of the L-shaped steel support plate 101. The bolt holes are provided with internal threads, which can allow the double-threaded nuts 3 to be inserted and fixed without slipping. At the same time, the track 102 can allow the movable support component 2 to be adjusted, further ensuring the stability and safety of the fixation between the welded steel component 5 and the I-beam 4, as well as the applicability to I-beams with different cross-sections.
[0026] refer to Figure 1 , 6 The movable support component 2 is welded from angle steel 201 and outer threaded rod 202, with two components used in a set. The outer threaded rod 202 connects to the steel support plate 1 through a double threaded nut 3, and the overall position of the locking device is fixed through the snap-fit action between the angle steel 201 and the I-beam 4. The movable support component 2 can be movably adjusted in position through the movable support component fixing track 102 in the steel support plate 1 to adapt to the use of I-beams with different cross-sections.
[0027] refer to Figure 1 , 7 The double-threaded nut 3 is composed of inner and outer threaded rods 301 and a nut 302. The inner thread of the inner and outer threaded rods 301 is used to connect with the outer threaded rod 202 in the movable support component, and the outer thread of the inner and outer threaded rods 301 is used to connect with the wavy bolt hole of the fixing rail 102 of the movable support component in the steel pallet 1. This achieves dual connection and fixation with both the steel pallet 1 and the movable support component 2, which is the core concept of this fixing buckle device design. The inner and outer threaded rods 301 are equipped with connecting nuts 302 to facilitate the tightening of the double-threaded nut 3.
Claims
1. A fixing buckle device for increasing the cross-section of an I-beam, characterized by comprising a steel support plate (1), a movable support member (2), and a double-threaded nut (3); the steel support plate (1) and the movable support member (2) are connected by the double-threaded nut (3) and are fixedly engaged with the I-beam (4) and the welded steel member (5); the steel support plate (1) is composed of an L-shaped steel support plate (101) and a movable support member fixing track (102); the bottom end of the L-shaped steel support plate hooks and holds the welded steel member; the movable support member fixing track (102) is a wavy bolt hole set along the center on the front side of the L-shaped steel support plate (101), and an internal thread is provided in the bolt hole; the movable support member (2) is welded from an angle steel (201) and an outer threaded rod (202), and the outer threaded rod (202) is connected to the steel support plate (1) by the double-threaded nut (3). The connection and fixing function, and the fixing buckle device is fixed by the snap-fit function of the angle steel (201) and the original I-beam (4); the movable support component (2) can be adjusted in position by the movable support component fixing track (102) in the steel plate (1); the double threaded nut (3) is composed of inner and outer threaded rods (301) and nuts (302); the inner thread in the inner and outer threaded rods (301) is used to connect with the outer threaded rod (202) in the movable support component, and the outer thread in the inner and outer threaded rods (301) is used to connect with the wave-shaped bolt hole of the movable support component fixing track (102) in the steel plate (1), so as to realize the double connection and fixing with the steel plate (1) and the movable support component (2); the inner and outer threaded rods (301) are equipped with connecting nuts (302) to facilitate the screwing of the double threaded nut (3).