Large-span steel structure connecting assembly

Abstract

The utility model relates to the field of building construction, in particular to a large-span steel structure connecting assembly which comprises connecting plates, a plurality of screws and an abutting piece, the connecting plates are symmetrically and flatly attached to the splicing positions of steel beams, the screws penetrate through the connecting plates and the steel beams, nuts are arranged on the outer sides of the screws to fix the connecting plates and the steel beams, and the abutting piece comprises a horizontal part. The horizontal part sleeves the outer side of the bottom of the corresponding screw end, one end of the horizontal part extends downwards to form an inclined part, and the bottom of the inclined part elastically abuts against the connecting plate. According to the large-span steel structure connecting assembly, due to the design of the introduced abutting piece, the abutting piece can deform in the screw tightening process and abut against the adjacent screw ends or nuts, looseness is effectively prevented, the reliability and safety of connection are improved, and especially under the action of vibration or impact loads, the large-span steel structure connecting assembly can be prevented from being loosened. By means of the design, the loosening risk of the connecting piece can be remarkably reduced.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a large-span steel structure connection component. Background Art

[0002] At present, large-span steel structure connection components are mainly connected by welding and screws. Although welding connections have high strength, the construction is complex and requires high technical skills of workers. In addition, the smoke and harmful gases generated during the welding process pollute the environment. Screw connections have the advantages of easy installation and strong detachability. However, in large-span steel structures, screw connections are often affected by vibration and impact loads. These loads will cause tiny relative displacements between screws and nuts. Long-term accumulation will cause loose connections. In addition, during long-term use, as the ambient temperature changes, the materials of the screws and nuts will expand and contract, which will also increase the risk of loosening. Although traditionally, gaskets are added between screws and nuts to prevent screws from loosening, the use of gaskets cannot completely solve the loosening problem, especially when vibration and impact loads are large.

[0003] Therefore, it is necessary to provide a new large-span steel structure connection component to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is a large-span steel structure connection component, which solves the following problems existing in the prior art: how to reduce the loosening risk of screws on the connecting piece, and how to enhance the stability of the screws on the steel structure.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A large-span steel structure connection assembly includes a connection plate, which is symmetrically and flatly attached to the joint of the steel beams;

[0007] Screws, a plurality of screws are provided, the screws pass through the connecting plate and the steel beam, and are provided with nuts on the outside to fix the connecting plate and the steel beam;

[0008] The resistance piece includes a horizontal portion, which is sleeved on the outer side of the bottom of the corresponding screw end. One end of the horizontal portion extends downward to form an inclined portion, and the bottom of the inclined portion elastically resists against the connecting plate. The other end of the inclined portion bends upward and extends to form a fitting portion, and the top of the fitting portion resists against the adjacent screw end.

[0009] Preferably, a surface of one side of the fitting portion close to the screw end is planar.

[0010] Preferably, a V-shaped groove is provided on the surface of the fitting portion.

[0011] Preferably, the surface of the fitting portion is symmetrically provided with angular grooves on both sides of the V-shaped groove, and the angular grooves are inclined toward both sides of the V-shaped groove.

[0012] Preferably, the abutment members are symmetrically arranged and symmetrically sleeved between the end of the outer side of the screw and the nut.

[0013] Preferably, the included angle between the V-shaped groove and the angular groove is 60°-63°.

[0014] Compared with the related art, the utility model has the following beneficial effects:

[0015] 1. The connection components are connected by screws, which can ensure the close fit and firm connection between the steel beams and effectively transfer the load. In addition, the introduced resistance design can deform during the tightening of the screws and resist the adjacent screw ends or nuts, effectively preventing loosening and increasing the reliability and safety of the connection. Especially under the action of vibration or impact loads, this design can significantly reduce the risk of loosening of the connector.

[0016] 2. The V-groove and angular groove design on the abutment not only takes into account the standard shape of the screw end and the nut, but also can adapt to the angular deviation that may occur during the tightening process of the screw end and the nut through the layout of the V-groove and the angular groove. This design makes the connection component more adaptable and fault-tolerant, and improves the reliability and stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a large-span steel structure connection assembly provided by the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the bottom structure of the connecting plate shown;

[0019] Figure 3 for Figure 1 A schematic diagram of the top structure of the screw shown;

[0020] Figure 4 for Figure 2 The schematic diagram of the structure shows that the screw corner faces the V-shaped groove.

[0021] Markings in the figure: 1, connecting plate; 2, screw; 3, nut; 4, abutment piece; 41, horizontal portion; 42, inclined portion; 43, fitting portion; 44, V-shaped groove; 45, angular groove. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] See also Figures 1 to 4 , a long-span steel structure connection assembly, the long-span steel structure connection assembly comprising:

[0024] The connecting plate 1 is symmetrically attached to the joint of the steel beam. The steel beam is provided with two sections, and the ends of the two sections of the steel beam are aligned and attached to each other for subsequent connection to form a large-span support. The connecting plate 1 connects and fixes the spliced ​​parts of the steel beam to transfer the load at the connection of the steel beam;

[0025] Screws 2, a plurality of screws 2 are provided, and the screws 2 pass through the connecting plate 1 and the steel beam. The connecting plate 1 and the two sections of the steel beam are firmly fixed together by the screws 2 and the nuts 3. The fixing method of the screws 2 is more convenient during installation;

[0026] There are several resistance members 4, which are symmetrically sleeved on the outer sides of the corresponding screws 2. The resistance members 4 replace the commonly used gaskets. When the screws 2 are turned, pressure is applied to the resistance members 4 to deform them so as to resist the adjacent screw 2 ends or nuts 3, thereby preventing the adjacent screws 2 or nuts 3 from loosening and thus reinforcing the screws.

[0027] The abutment member 4 includes a horizontal portion 41, which is sleeved on the outer side of the bottom of the corresponding screw 2 end. One end of the horizontal portion 41 extends downward to form an inclined portion 42, and the bottom of the inclined portion 42 elastically abuts against the connecting plate 1. The other end of the inclined portion 42 bends upward to form a fitting portion 43, and the top of the fitting portion 43 abuts against the adjacent screw 2 end. When the screw 2 is turned, the horizontal portion 41 is pressed down to get close to the surface of the connecting plate 1, thereby squeezing the inclined portion 42 and gradually increasing the inclination of the inclined portion 42 to make the fitting portion 43 close to the screw 2 end or the nut 3, thereby abutting against the screw 2 end or the nut 3.

[0028] See also Figures 1 to 4 The surface of the fitting portion 43 on one side close to the end of the screw 2 is flat, so that the fitting portion 43 fits better when it is close to the end of the screw 2 or the flat side of the nut 3;

[0029] See also Figures 1 to 4 The surface of the fitting portion 43 is provided with a V-shaped groove 44, so that the corners of the end of the screw 2 or the nut 3 can be better fitted to the fitting portion 43 during the extrusion and deformation of the abutment member 4;

[0030] See also Figures 1 to 4 , the surface of the fitting portion 43 is symmetrically provided with angular grooves 45 on both sides of the V-shaped groove 44, and the angular grooves 45 are inclined relative to the V-shaped groove 44 on both sides thereof, and the angular grooves 45 are used to fit the abutment member 4 when the corners of the end of the screw 2 and the nut 3 are offset at a certain angle;

[0031] See also Figures 1 to 4 The included angle between the V-shaped groove 44 and the angular groove 45 is 60°-63°. The cross-sections of the ends of the screw 2 and the nut 3 are both regular hexagons. The included angle of the V-shaped groove 44 can better fit the edges and corners of the ends of the screw 2 and the nut 3.

[0032] The working principle of the large-span steel structure connection component provided by the utility model is as follows: the steel beam is used as the main structure, and the I-beam design is adopted, which is conducive to bearing bending force and is suitable for large-span steel structures. The steel beam is provided with two sections, and the ends of the two sections of the steel beam are aligned and fitted together to form a large-span support. The connecting plate 1 and the two sections of the steel beam are fixed together by screws 2 and nuts 3 to form a stable connection structure. During the connection process, through the resistance piece 4 on the screw 2, during the tightening process of the screw 2, the compressive deformation of the horizontal part 41 causes the inclined part 42 and the fitting part 43 to deform, so that the fitting part 43 fits and resists the end of the screw 2 or the nut 3, so that the screw 2 and the nut 3 are hindered by the fitting part 43 and their rotation is restricted, so that in the process of twisting one screw 2, the other screw 2 is reinforced to enhance the anti-loosening effect, and the surface of the fitting part 43 is provided with a V-shaped groove 44 and an angular groove 45, which can adapt to the close fitting of the screw 2 and the nut 3 with the resistance piece 4 in different states.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A long-span steel structure connection assembly, characterized in that: include: A connecting plate (1), the connecting plate (1) is symmetrically attached to the joint of the steel beams; Screws (2), a plurality of screws (2) are provided, the screws (2) pass through the connecting plate (1) and the steel beam, and are provided with nuts (3) on the outside to fix the connecting plate (1) and the steel beam; The abutment member (4) comprises a horizontal portion (41), the horizontal portion (41) being sleeved on the outer side of the bottom of the corresponding screw (2) end, one end of the horizontal portion (41) extending downward to form an inclined portion (42), and the bottom of the inclined portion (42) elastically abuts against the connecting plate (1), and the other end of the inclined portion (42) is bent and extended upward to form a fitting portion (43), and the top of the fitting portion (43) abuts against the adjacent screw (2) end.

2. The long-span steel structure connection assembly according to claim 1, characterized in that: A surface of one side of the fitting portion (43) close to the end of the screw (2) is flat.

3. The long-span steel structure connection assembly according to claim 2, characterized in that: A V-shaped groove (44) is provided on the surface of the fitting portion (43).

4. The long-span steel structure connection assembly according to claim 3, characterized in that: The surface of the fitting portion (43) is symmetrically provided with angular grooves (45) on both sides of the V-shaped groove (44), and the angular grooves (45) are inclined toward both sides of the V-shaped groove (44).

5. The long-span steel structure connection assembly according to claim 1, characterized in that: The abutment members (4) are symmetrically arranged, and are symmetrically sleeved between the end of the outer side of the screw (2) and the nut (3).

6. The long-span steel structure connection assembly according to claim 4, characterized in that: The included angle between the V-shaped groove (44) and the angular groove (45) is 60°-63°.

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