A high-precision connecting component for prefabricated steel structure buildings

Abstract

This utility model proposes a high-precision connecting component for prefabricated steel structure buildings, belonging to the field of prefabricated steel structure technology. The high-precision connecting component for prefabricated steel structure buildings includes at least two sets of main load-bearing frames. Connecting rods are provided on opposite sides of two adjacent sets of main load-bearing frames. Each set of connecting rods has one end of a secondary diagonal tie rod on both sides, and the other end of the secondary diagonal tie rods is abutted against the side of the main load-bearing frame. This utility model features a "sleeving + rotation" connection process used in prefabricated steel structures. During construction, the main components are first sleeved with the connecting ends of the tie rods. The prefabricated insertion slots guide the rapid alignment, forming a three-dimensional limiting structure, improving installation efficiency. Furthermore, the comprehensive interlocking and multiple locking of the contact surfaces enhance the shear strength of the joint, effectively resisting stress impacts from vibration and loads, and maintaining high-strength connection stability over the long term.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated steel structure technology, and in particular to a high-precision connecting component for prefabricated steel structure buildings. Background Technology

[0002] Prefabricated steel structure buildings refer to a type of building that uses prefabricated steel structure components in a factory as the main body and is quickly assembled on site through bolts, welding and other methods. It has the characteristics of standardized component production, short construction cycle, light weight, good seismic performance and green environmental protection. It can reduce on-site wet work and is suitable for various scenarios such as residential and public buildings. It is an important direction of building industrialization.

[0003] In prefabricated steel structure buildings, the joint connections rely heavily on bolt and nut fastening or welding processes to splice components. However, during use, buildings are inevitably affected by external environmental loads such as earthquakes and strong winds, which continuously generate vibrations of different frequencies and amplitudes. Long-term vibrations will cause the joint connection parts to be subjected to repeated stress, leading to bolt loosening, weld fatigue, and consequently, increased gaps, component misalignment, and other precision deviations. This exacerbates the wear and tear on the contact surfaces. If these hidden damages are not addressed in time, they will gradually weaken the overall stability of the structure and seriously threaten the safety of prefabricated steel structure buildings.

[0004] Therefore, this utility model proposes a high-precision connecting component for prefabricated steel structure buildings. Utility Model Content

[0005] The purpose of this utility model is to provide a high-precision connecting component for prefabricated steel structure buildings to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-precision connecting component for prefabricated steel structure buildings includes at least two sets of main load-bearing frames. Connecting rods are provided on opposite sides of two adjacent sets of main load-bearing frames. One end of a secondary diagonal tie rod is provided on both sides of the two sets of connecting rods. The other end of the two sets of secondary diagonal tie rods is in contact with the side of the main load-bearing frame.

[0008] The main load-bearing frame and the connecting rod are provided with connecting structures on opposite sides, and the connecting rod and the auxiliary diagonal rod are provided with connecting structures on opposite sides.

[0009] Furthermore, the connecting structure includes a connecting tie column, with rotating plates fixedly connected to both sides of the connecting tie column. The outer wall of one set of rotating plates is movably sleeved with the main load-bearing frame, and the outer wall of the other set of rotating plates is movably sleeved with the connecting tie rod. A fixing plate is fixedly connected to the outer wall of the connecting tie column, and the outer wall of the fixing plate is in contact with the connecting tie rod. Six sets of high-strength screws are movably sleeved inside the fixing plate. The six sets of high-strength screws are arranged in a linear array, and the outer walls of the six sets of high-strength screws are movably sleeved with the main load-bearing frame.

[0010] Furthermore, both ends of the sidewalls of the two sets of rotating plates are fixedly connected to limiting teeth three. The outer wall of one set of limiting teeth three engages with limiting teeth two, and the outer wall of limiting teeth two is fixedly connected to the inner wall of the connecting rod. The outer wall of the other set of limiting teeth three is fixedly connected to limiting teeth one, and the outer wall of limiting teeth one is fixedly connected to the inner wall of the main load-bearing frame.

[0011] Furthermore, the main load-bearing frame has four sets of insertion slots inside, and the inside of the insertion slots is movably connected to the connecting tie rods. Three sets of screw holes are opened on the upper and lower sides of the insertion slots, and the three sets of screw holes are arranged in a linear array. The inner walls of the screw holes are movably connected to high-strength screws.

[0012] Furthermore, two sets of thickened gaskets are attached to the side of the fixing plate. The two sets of thickened gaskets are symmetrically centered, and the outer walls of the two sets of thickened gaskets are attached to the main load-bearing frame. The inner walls of the thickened gaskets are movably connected to the high-strength screw.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. By using the "sleeving + rotation" connection process in prefabricated steel structures, the main components and tie rods are first sleeved together during construction. The prefabricated insertion slots guide the quick alignment, eliminating complex measurement steps. The rotation operation drives the locking plate or locking tongue to engage with the preset slot through mechanical linkage, forming a three-dimensional limiting structure, which improves installation efficiency. Furthermore, the full engagement and multiple locking of the contact surfaces enhance the shear strength of the nodes, effectively resisting the stress impact of vibration and load, and maintaining high-strength connection stability over a long period of time.

[0015] 2. The innovative design of the connecting components in prefabricated steel structure buildings adopts a limiting tooth interlocking design. By setting matching concave and convex limiting teeth on the contact surface of the nodes, precise engagement of the connection parts is achieved. When the component is subjected to force and undergoes slight movement, the meshing action between the teeth of the limiting teeth can form a rigid limit, effectively offsetting the displacement deviation caused by vibration. This allows for efficient control of the node connection accuracy and avoids the loosening and gap problems of traditional bolt connections. The tight fit between the limiting teeth can also disperse stress concentration, reduce wear and deformation during long-term use, thereby maintaining the node connection accuracy over the long term and ensuring structural stability. Attached Figure Description

[0016] Figure 1 This is an external view of a high-precision connecting component for a prefabricated steel structure building according to this utility model;

[0017] Figure 2 This is an internal structural diagram of a high-precision connecting component for a prefabricated steel structure building according to this utility model;

[0018] Figure 3 This is a vertical cross-section of a high-precision connecting component for a prefabricated steel structure building according to the present invention. Figure 1 ;

[0019] Figure 4 This is a vertical cross-section of a high-precision connecting component for a prefabricated steel structure building according to the present invention. Figure 2 ;

[0020] Figure 5 This is a cross-sectional view of a high-precision connecting component for a prefabricated steel structure building according to this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Main load-bearing frame; 2. Connecting tie rod; 3. Secondary diagonal tie rod; 4. Fixing plate; 5. High-strength screw rod; 6. Limiting tooth one; 7. Rotating clamping plate; 8. Limiting tooth two; 9. Connecting tie column; 10. Thickened shim; 11. Limiting tooth three; 12. Insertion groove; 13. Screw hole. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] Please see Figures 1 to 5 As shown, the high-precision connecting component for prefabricated steel structure buildings provided by this utility model includes at least two sets of main load-bearing frames 1. Connecting rods 2 are provided on opposite sides of two adjacent sets of main load-bearing frames 1. One end of a secondary diagonal tie rod 3 is provided on both sides of the two sets of connecting rods 2. The other end of the two sets of secondary diagonal tie rods 3 is in contact with the side of the main load-bearing frame 1.

[0026] The main load-bearing frame 1 and the connecting rod 2 are provided with connecting structures on opposite sides, and the connecting rod 2 and the secondary diagonal rod 3 are provided with connecting structures on opposite sides.

[0027] The connecting structure includes a connecting column 9, with rotating plates 7 fixedly connected to both sides of the connecting column 9. The outer wall of one set of rotating plates 7 is movably sleeved with the main load-bearing frame 1, and the outer wall of the other set of rotating plates 7 is movably sleeved with the connecting rod 2. A fixing plate 4 is fixedly connected to the outer wall of the connecting column 9. The outer wall of the fixing plate 4 is in contact with the connecting rod 2. Six sets of high-strength screws 5 are movably sleeved inside the fixing plate 4. The six sets of high-strength screws 5 are arranged in a linear array, and the outer walls of the six sets of high-strength screws 5 are movably sleeved with the main load-bearing frame 1.

[0028] The main load-bearing frame 1 has four sets of insertion slots 12 inside. The inside of the insertion slots 12 is movably connected to the connecting tie rods 9. Three sets of screw holes 13 are opened on the upper and lower sides of the insertion slots 12. The three sets of screw holes 13 are arranged in a linear array. The inner wall of the screw holes 13 is movably connected to the high-strength screw rods 5.

[0029] During connection, firstly, the two sets of rotating clamping plates 7 connected to both ends of the connecting tie rod 9 are passed through the insertion slot 12 and respectively sleeved with the main load-bearing frame 1, the connecting tie rod 2, or the auxiliary diagonal tie rod 3, thereby achieving an effective connection between the main load-bearing frame 1 and the connecting tie rod 2, the connecting tie rod 2 and the auxiliary diagonal tie rod 3, or the auxiliary diagonal tie rod 3 and the main load-bearing frame 1, forming an integral structure. Then, the fixing plate 4 is rotated 90 degrees, from the initial horizontal state to the vertical state. This action simultaneously drives the rotating clamping plates 7 on both sides to rotate synchronously through the connecting tie rod 9, so that the extended ends of the two sets of rotating clamping plates 7 are inserted into the main load-bearing frame 1, the connecting tie rod 2, or the auxiliary diagonal tie rod 3, thereby preventing the rotating clamping plates 7 from being pulled out directly. Next, the six sets of high-strength screws 5 sleeved inside the fixing plate 4 are used to limit and fix the fixing plate 4 to the inner wall of the main load-bearing frame 1, ensuring that the fixing plate 4 always remains in a vertical state, so as to maintain the stability of the limit connection.

[0030] Example 2

[0031] Based on Example 1, please refer to Figures 1 to 5 As shown, both ends of the side walls of the two sets of rotating plates 7 are fixedly connected to limiting teeth 3 11. The outer wall of one set of limiting teeth 3 11 engages with limiting teeth 2 8. The outer wall of limiting teeth 2 8 is fixedly connected to the inner wall of the connecting rod 2. The outer wall of the other set of limiting teeth 3 11 is fixedly connected to limiting teeth 1 6. The outer wall of limiting teeth 1 6 is fixedly connected to the inner wall of the main load-bearing frame 1.

[0032] To enhance connection stability, a limiting tooth 6 is installed inside the main load-bearing frame 1 at the contact position with the rotating plate 7, and a limiting tooth 8 is installed at the contact position between the connecting rod 2 and the rotating plate 7. When the rotating plate 7 rotates into position with the connecting rod 9, the limiting tooth 11 fixedly connected to its outer wall will engage with the limiting tooth 6 and the limiting tooth 8 respectively. This engagement structure effectively limits the vertical floating range of the rotating plate 7. At the same time, the engagement between the limiting tooth 11 and the limiting teeth 6 and 8 increases the friction. When the steel structure is subjected to vibration loads, this engagement structure can also constrain the amplitude of relative displacement, thereby effectively suppressing vibration and further reducing wear, thus maintaining a high-precision connection state over a long period of time after connection.

[0033] Two sets of thickened pads 10 are attached to the side of the fixed plate 4. The two sets of thickened pads 10 are symmetrically arranged in the center, and the outer walls of the two sets of thickened pads 10 are attached to the main load-bearing frame 1. The inner walls of the thickened pads 10 are movably connected to the high-strength screw 5.

[0034] A thickened shim 10 is added between the fixed plate 4 and the main load-bearing frame 1. When the structure shakes, the thickened shim 10 can absorb energy through its elastic deformation, reducing the direct friction between the main load-bearing frame 1 and the thickened shim 10. At the same time, it provides the necessary movement margin for the first limiting tooth 6, the second limiting tooth 8 and the third limiting tooth 11 during the connection and engagement process. After installation, the thickened shim 10 will effectively seal the connection gap, thereby ensuring that the first limiting tooth 6, the second limiting tooth 8 and the third limiting tooth 11 will eventually form a tight engagement state.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-precision connecting piece for a fabricated steel structure building, characterized in that, It includes at least two sets of main load-bearing frames (1), with connecting rods (2) provided on opposite sides of the two sets of main load-bearing frames (1), and one end of a secondary diagonal rod (3) provided on both sides of the two sets of connecting rods (2), with the other end of the two sets of secondary diagonal rods (3) fitting against the side of the main load-bearing frame (1); The main load-bearing frame (1) and the connecting rod (2) are provided with a connecting structure on opposite sides, and the connecting rod (2) and the secondary diagonal rod (3) are provided with a connecting structure on opposite sides. The connection structure includes a connecting tie column (9), and rotating plates (7) are fixedly connected to both sides of the connecting tie column (9). The outer wall of one set of rotating plates (7) is movably connected to the main load-bearing frame (1), and the outer wall of the other set of rotating plates (7) is movably connected to the connecting rod (2). A fixing plate (4) is fixedly connected to the outer wall of the connecting tie column (9). The outer wall of the fixing plate (4) is in contact with the connecting rod (2). Six sets of high-strength screws (5) are movably connected inside the fixing plate (4). The six sets of high-strength screws (5) are arranged in a linear array. The outer walls of the six sets of high-strength screws (5) are movably connected to the main load-bearing frame (1). Both sides of the sidewalls of the two sets of rotating plates (7) are fixedly connected to limiting teeth three (11). The outer wall of one set of limiting teeth three (11) engages with limiting teeth two (8). The outer wall of limiting teeth two (8) is fixedly connected to the inner wall of the connecting rod (2). The outer wall of the other set of limiting teeth three (11) is fixedly connected to limiting teeth one (6). The outer wall of limiting teeth one (6) is fixedly connected to the inner wall of the main load-bearing frame (1).

2. The high-precision connecting piece of the fabricated steel structure building according to claim 1, characterized in that, The main load-bearing frame (1) has four sets of insertion slots (12) inside. The inside of the insertion slots (12) is movably connected to the connecting tie rods (9). The upper and lower sides of the insertion slots (12) are provided with three sets of screw holes (13). The three sets of screw holes (13) are arranged in a linear array. The inner walls of the screw holes (13) are movably connected to the high-strength screw rods (5).

3. The high-precision connecting piece of the fabricated steel structure building according to claim 1, characterized in that, The side of the fixing plate (4) is fitted with two sets of thickened pads (10). The two sets of thickened pads (10) are symmetrically positioned in the center, and the outer walls of the two sets of thickened pads (10) are fitted with the main load-bearing frame (1). The inner wall of the thickened pads (10) is movably connected to the high-strength screw (5).

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