A fastening connecting tool for steel structure engineering

By using wedge plates and composite plates combined with inclined reinforcement surfaces in steel structure connections, and employing double-headed bolts and U-shaped clamping frames for multi-point connections, the problem of poor stability in steel structure connections is solved, achieving a high-strength and stable fastening effect.

CN224531918UActive Publication Date: 2026-07-21ZHEJIANG HUAWEI SECTION STEEL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG HUAWEI SECTION STEEL TECH CO LTD
Filing Date
2025-08-20
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing steel structure connections are unstable and prone to loosening during temporary transitions, and wear at the connection points affects the strength and stability of the combined installation, resulting in insufficient adaptability.

Method used

The wedge plate and the combination plate are installed using a connecting plate, combined with the inclined reinforcement surface, and reinforced by double-headed bolts. A U-shaped top clamp and adjusting screws are used for auxiliary fastening to achieve multi-point connection and adjustment.

Benefits of technology

It improves the connection strength and stability of the steel structure, enhances the safety and adaptability of the structure, facilitates installation and positioning, avoids misalignment and interference, and ensures the tightness and stability of the connection.

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Abstract

The utility model discloses a fastening connection frock for steel structure engineering, including steel frame, both ends of steel frame all are fixedly connected with connecting plate, one side of connecting plate is equipped with the inclined reinforcement surface, the inside of inclined reinforcement surface is equipped with the connecting through -hole, the surface combination of one side of inclined reinforcement surface installs the wedge plate, the wedge plate fixed mounting is in the one side position of steel frame, the flat surface combination of wedge plate installs the combination board, the combination board is located one side position of steel frame, and the end of combination board and wedge plate all is equipped with the combination hole, the inside fixed mounting of connecting through -hole has the stud bolt, the inside combination of stud bolt is connected with combination hole, and the both ends of stud bolt all are screw -threaded installation has the fastening nut, guarantees the safety stability, can be combined installation and is assisted fastening through the reinforcing installation of stud bolt, guarantees the structural stability, and the adaptability is high.
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Description

Technical Field

[0001] This utility model relates to the field of steel structures, and more specifically, to a fastening connection tooling for steel structure engineering. Background Technology

[0002] Steel structures are structures made of steel materials and are one of the main types of building structures. The structure mainly consists of steel beams, steel columns, steel trusses, and other components made of shaped steel and steel plates. These components are typically connected by welds, bolts, or rivets. Due to their light weight and ease of construction, they are widely used in large factories, stadiums, and high-rise buildings. Common connections in steel structures include welded connections, bolted connections, and riveted connections. Bolted connections are further divided into ordinary bolted connections and high-strength bolted connections. In existing technology, when beams in steel structures are temporarily transferred or overlapped, they are connected by angle steel supports and secured with bolts. This type of structure has poor stability, is prone to wear and loosening at the connection points, and is highly dangerous.

[0003] The utility model authorized by announcement number CN212670869U relates to a fastening connection fixture for steel structure engineering, belonging to the field of steel structure technology. This utility model, by setting an upper horizontal plate, a lower horizontal plate, a vertical plate, and an interlocking mechanism, changes the point contact between the crossbeam transition plate and the crossbeam, which is fixed by bolts, to a surface contact between the interlocking plate and the transition plate. This fixture structure is stable, simple, and reliable. The fastening connection fixture for steel structure engineering described in this utility model, fixed to the bottom of the crossbeam, includes: an upper horizontal plate, the top of which is fixedly connected to the crossbeam; a lower horizontal plate parallel to the upper horizontal plate; a vertical plate vertically connecting the upper and lower horizontal plates, with an arc-shaped transition portion at the connection between the vertical plate and the lower horizontal plate; and an interlocking mechanism disposed on both sides of the vertical plate, one end of which is adapted to the arc-shaped transition portion.

[0004] In the above-disclosed structure, a fastening connection is achieved by interlocking horizontal and vertical plates. However, since the thickened part of the steel frame is an inclined surface structure, the contact area at the fastening connection position is small, which affects the strength and stability of the combined installation. The lack of wedge plates that fit the inclined surface for transition installation makes it difficult to adjust and use for alignment installation, resulting in poor adaptability. Furthermore, the combined installation on both sides cannot be tightened and reinforced, which needs to be improved. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a fastening connection fixture for steel structure engineering. By installing the mounting plate on the connecting plates on both sides of the steel frame and combining it with the wedge plate installed on the inclined reinforcement surface, the fixture can ensure its own strength while fitting the structural surface for combined installation, ensuring safety and stability. The fixture is then reinforced by double-headed bolts for easy and stable installation. Furthermore, the U-shaped top tightening bracket connects the adjusting cylinder and adjusting screw, which can be combined for auxiliary fastening, ensuring structural stability and high adaptability.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A fastening and connection fixture for steel structure engineering includes a steel frame. Connecting plates are fixedly connected to both ends of the steel frame. One side of each connecting plate has an inclined reinforcing surface with a connecting through hole inside. A wedge plate is mounted on one side of the inclined reinforcing surface and fixedly installed on one side of the steel frame. A combination plate is mounted on the flat surface of the wedge plate and located on one side of the steel frame. Both ends of the combination plate and the wedge plate have combination holes located at one end of the connecting through hole. Double-ended bolts are fixedly installed inside the connecting through hole and are connected to the combination hole. Both ends of the double-ended bolts are threaded with fastening nuts, which are respectively pressed against one side of the outer surface of the connecting plate and the combination plate. The combination plates are symmetrically installed at both ends of one side of the steel frame. A limit block is fixedly connected to one side of the combination plate, and the limit block is pressed against one end surface of the wedge plate.

[0008] Furthermore, a U-shaped clamping bracket is tightly connected to one side of the combined plate, and the U-shaped clamping bracket is sleeved on one end of the double-headed bolt.

[0009] Furthermore, an adjusting cylinder is fixedly connected to one side of the U-shaped clamping frame. The adjusting cylinder has an adjusting threaded hole inside, and an adjusting screw is installed in the internal thread of the adjusting threaded hole.

[0010] Furthermore, both ends of the adjusting screw are threaded with adjusting cylinders, and the U-shaped clamping brackets are located at both ends of the adjusting screw. The adjusting cylinders and adjusting screws are connected by the U-shaped clamping brackets, and the length can be adjusted by thread, thereby clamping it to the surface of the composite plate, which is beneficial for auxiliary reinforcement and improving the structural strength and stability.

[0011] Furthermore, the connecting plates are symmetrically connected to both ends of the steel frame and are consistent with the length of the steel frame.

[0012] Furthermore, the combined plate is located on one side of the steel frame and is positioned between two connecting plates.

[0013] Furthermore, the combined plates are evenly distributed along the length of the steel frame. By symmetrically installing connecting plates and arranging them along the length, reinforcement can be achieved from multiple points, ensuring the strength and stability of the steel structure and facilitating installation and use.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This scheme uses connecting plates on both sides of the steel frame to install the plate, and wedge plates are installed on the inclined reinforcement surface. This ensures the strength of the plate itself, and allows it to fit the surface of the structure for combined installation, ensuring safety and stability. Double-headed bolts are used for reinforcement installation, which is convenient and stable. U-shaped top tightening frame is used to connect the adjusting cylinder and adjusting screw, which can be combined for auxiliary tightening, ensuring structural stability and high adaptability.

[0016] (2) The length can be adjusted by connecting the adjusting cylinder and adjusting screw through the U-shaped clamping bracket, thereby clamping it to the surface of the composite plate, which is conducive to auxiliary reinforcement and improving the structural strength and stability.

[0017] (3) By symmetrically installing the connecting plates and arranging them along the length, the connection can be reinforced from multiple points, ensuring the strength and stability of the steel structure and facilitating installation and use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structural connection of this utility model;

[0019] Figure 2 This is a schematic diagram of the planar structure of the present invention;

[0020] Figure 3 This is a side cross-sectional view of the combined plate connection of this utility model;

[0021] Figure 4 This is a partial structural diagram of the U-shaped clamping frame connection of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the connection between the U-shaped clamping frame and the adjusting cylinder of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Steel frame, 11. Connecting plate, 12. Inclined reinforcing surface, 13. Connecting through hole, 14. Wedge plate, 15. Combination plate, 16. Combination hole, 17. Double-ended bolt, 18. Fastening nut, 19. Limiting block, 2. U-shaped top clamping frame, 21. Adjusting cylinder, 22. Adjusting threaded hole, 23. Adjusting screw. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 , Figure 2 and Figure 3 A fastening fixture for steel structure engineering includes a steel frame 1. Connecting plates 11 are fixedly connected to both ends of the steel frame 1. One side of each connecting plate 11 has an inclined reinforcing surface 12. A connecting through hole 13 is provided inside the inclined reinforcing surface 12. A wedge plate 14 is mounted on one side of the inclined reinforcing surface 12 and is fixedly installed on one side of the steel frame 1. A combination plate 15 is mounted on the flat surface of the wedge plate 14 and is located on one side of the steel frame 1. Both ends of the combination plate 15 and the wedge plate 14 have combination holes 16, which are located at one end of the connecting through hole 13. Double-ended bolts 17 are fixedly installed inside the connecting through hole 13 and are connected to the inside of the combination hole 16. Both ends of the double-ended bolts 17 are threaded with fasteners. The fastening nuts 18 are respectively pressed and connected to one side of the outer surface of the connecting plate 11 and the combination plate 15. The combination plate 15 is symmetrically installed at both ends of one side of the steel frame 1. A limiting block 19 is fixedly connected to one side of the combination plate 15. The limiting block 19 is tightly connected to one end surface of the wedge plate 14. In use, the wedge plate 14 is first connected to the inclined reinforcement surface 12, and can be combined and installed on the surface of the connecting plate 11, thereby transforming the inclined surface into a flat surface. Then, the combination plate 15 is installed in alignment to increase the contact area, avoid misalignment and interference, and ensure the tightness of the connection. The combination hole 16 is aligned with the connecting through hole 13. After inserting the double-ended bolt 17, the fastening nuts 18 are installed from both ends by thread. It can be locked and fixed from both ends, which is convenient for installation and positioning, and facilitates the fastening installation of the steel structure. It has high adaptability.

[0027] Please see Figure 4 and Figure 5 A U-shaped clamping bracket 2 is tightly connected to one side of the combined plate 15. The U-shaped clamping bracket 2 is sleeved on one end of the double-headed bolt 17. An adjusting cylinder 21 is fixedly connected to one side of the U-shaped clamping bracket 2. The adjusting cylinder 21 has an adjusting threaded hole 22 inside. An adjusting screw 23 is installed inside the adjusting threaded hole 22. The adjusting cylinder 21 is threaded on both ends of the adjusting screw 23. The U-shaped clamping bracket 2 is located at both ends of the adjusting screw 23. The length can be adjusted by connecting the adjusting cylinder and the adjusting screw through the U-shaped clamping bracket, thereby clamping it to the surface of the combined plate, which is conducive to auxiliary reinforcement and improves the structural strength and stability. After the combined plate 15 is assembled and installed, the U-shaped clamping bracket 2 can be sleeved on the double-headed nut 17 and clamped to the surface of the combined plate 15 without causing interference. Then the adjusting cylinder 21 can be rotated, thereby changing the length in conjunction with the adjusting screw 23, which can clamp the combined plates 15 on the upper and lower sides, thereby assisting in reinforcement, improving the stability of the fastening connection, and ensuring the safety of the steel structure.

[0028] Please see Figure 1 and Figure 2The connecting plates 11 are symmetrically connected to both ends of the steel frame 1 and are consistent with the length of the steel frame 1. The combination plate 15 is located on one side of the steel frame 1 and is located between the two connecting plates 11. The combination plates 15 are evenly distributed along the length of the steel frame 1. By symmetrically installing the connecting plates and arranging them along the length, the connection can be reinforced from multiple points, ensuring the strength and stability of the steel structure and facilitating installation and use.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A fastening connection fixture for steel structure engineering, comprising a steel frame (1), wherein both ends of the steel frame (1) are fixedly connected to connecting plates (11), and one side of the connecting plate (11) is provided with an inclined reinforcing surface (12), characterized in that: The inclined reinforcing surface (12) has a connecting through hole (13) inside. A wedge plate (14) is assembled and installed on one side surface of the inclined reinforcing surface (12). The wedge plate (14) is fixedly installed on one side of the steel frame (1). A combination plate (15) is assembled and installed on the flat surface of the wedge plate (14). The combination plate (15) is located on one side of the steel frame (1). The ends of the combination plate (15) and the wedge plate (14) are provided with combination holes (16). The combination holes (16) are located at one end of the connecting through hole (13). 13) is internally fixed with a double-ended bolt (17), which is connected to the inside of the combined hole (16). Both ends of the double-ended bolt (17) are threaded with a fastening nut (18). The fastening nut (18) is respectively pressed and connected to one side of the outer surface of the connecting plate (11) and the combined plate (15). The combined plate (15) is symmetrically installed at both ends of one side of the steel frame (1). A limit block (19) is fixedly connected to one side of the combined plate (15). The limit block (19) is pressed against one end surface of the wedge plate (14).

2. The fastening connection fixture for steel structure engineering according to claim 1, characterized in that: A U-shaped clamping bracket (2) is tightly connected to one side of the combined plate (15), and the U-shaped clamping bracket (2) is sleeved on one end of the double-headed bolt (17).

3. The fastening connection fixture for steel structure engineering according to claim 2, characterized in that: An adjusting cylinder (21) is fixedly connected to one side of the U-shaped clamping bracket (2). The adjusting cylinder (21) has an adjusting threaded hole (22) inside, and an adjusting screw (23) is installed inside the adjusting threaded hole (22).

4. The fastening connection fixture for steel structure engineering according to claim 3, characterized in that: The adjusting screw (23) has adjusting cylinders (21) threaded on both ends, and the U-shaped clamping bracket (2) is located at both ends of the adjusting screw (23).

5. A fastening connection fixture for steel structure engineering according to claim 1, characterized in that: The connecting plate (11) is symmetrically connected to both ends of the steel frame (1) and has the same length as the steel frame (1).

6. The fastening connection fixture for steel structure engineering according to claim 1, characterized in that: The combined plate (15) is located on one side of the steel frame (1) and is located between two connecting plates (11).

7. A fastening connection fixture for steel structure engineering according to claim 1, characterized in that: The composite plates (15) are distributed at equal intervals along the length of the steel frame (1).