Bridge steel structure connecting fastener

Abstract

The utility model provides a bridge steel structure connecting fastener, which relates to the technical field of bridge steel structures, and comprises a bridge steel structure, a connecting piece is arranged at one end of the bridge steel structure, a plurality of fastening bolts are uniformly distributed on the side surface of the connecting piece in a penetrating manner, and the outer wall of one end of each fastening bolt is in threaded connection with a fastening nut. The outer side of the connecting piece is sleeved with a sealing sleeve, and sealing strips are arranged on the two sides of the sealing sleeve. The sealing sleeve is arranged on the outer side of the connecting piece in a sleeving mode and matched with the sealing strip to achieve three-side sealing, meanwhile, the cover plate is conveniently connected to the sealing sleeve through the rotating shaft, the cover plate is matched with the sealing gasket to cover the top of the connecting piece, and one side of the top can be further sealed; and the sealing rubber frame and the two-layer sealing frame are symmetrically arranged on the two sides of the sealing sleeve, and a double-sealing function is adopted, so that the multi-sealing effect is favorably provided.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge steel structures, in particular to a bridge steel structure connecting fastener. Background Art

[0002] Steel structure engineering is one of the main types of building structures. It is one of the more common structural forms in modern construction projects. The structure made mainly of steel is one of the main types of building structures. The characteristics of steel are high strength, light weight, good overall rigidity, and strong deformation ability. Therefore, it is particularly suitable for building large-span, ultra-high, and ultra-heavy buildings. The material has good homogeneity and isotropy, and is an ideal elastic body, which best conforms to the basic assumptions of general engineering mechanics. The material has good plasticity and toughness, can have large deformation, and can withstand dynamic loads well. The construction period is short. It has a high degree of industrialization and can be produced with a high degree of mechanization.

[0003] Although the existing bridge steel structure can ensure the stability and support strength after connection, due to its poor sealing, it has been corroded by rain for a long time. At the same time, there is a risk of water vapor, dust, etc. entering the connection parts, which makes the connection fasteners easily damaged, resulting in reduced safety. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that although the steel structure of the bridge can ensure the stability after connection and the strength of the support, due to the poor sealing, after long-term rain corrosion, there is also the possibility of water vapor, dust and the like entering the connection parts, which makes the connection fasteners easy to be damaged, resulting in reduced safety. A bridge steel structure connection fastener is proposed to solve the problem.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bridge steel structure connecting fastener, including a bridge steel structure, a connecting piece is arranged at one end of the bridge steel structure, a plurality of fastening bolts are evenly distributed through the side of the connecting piece, a fastening nut is threadedly connected to the outer wall of one end of the fastening bolt, a sealing sleeve is arranged on the outer side of the connecting piece, sealing strips are arranged on both sides of the sealing sleeve, a cover plate is connected to one end of the sealing sleeve, a sealing gasket is arranged on the surface of the cover plate, the sealing gasket is arranged on the top of the connecting piece, a sealing rubber frame is arranged on the side of the sealing strip, a two-layer sealing frame is arranged on the inner side of the sealing rubber frame, and the sealing rubber frame and the two-layer sealing frame are both connected to the outer wall of the bridge steel structure.

[0006] Preferably, the bottom of the bridge steel structure is symmetrically provided with sliding grooves, and the inner side of the sliding groove is slidably connected with a sliding seat.

[0007] Preferably, a bottom support plate is provided at the bottom of the sliding seat, a plurality of buffer damping rods are evenly distributed at the bottom of the bottom support plate, a spring is provided on the outer wall of the buffer damping rod, and a bottom support seat is installed at the bottom of the buffer damping rod.

[0008] Preferably, a plurality of reinforcing stays are evenly distributed on the top of the bottom support plate, and both ends of the reinforcing stays are connected between two sliding seats.

[0009] Preferably, a reinforcing support block is provided on the side of the sliding seat, and the bottom of the reinforcing support block is connected to the top of the bottom support plate.

[0010] Preferably, a rotating shaft is provided at one end of the cover plate, and the rotating shaft is connected to one end of the sealing sleeve.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, the sealing sleeve is arranged on the outside of the connecting piece, and the sealing strip is cooperated to realize three-side sealing. At the same time, the rotating shaft is convenient for connecting the cover plate to the sealing sleeve, and the sealing gasket is cooperated to cover the top of the connecting piece, which is beneficial to further sealing on the top side. At the same time, the method of protrusion and slot buckle is adopted, which is convenient for rapid installation and disassembly, and improves the convenience of use. The sealing rubber frame and the two-layer sealing frame are symmetrically arranged on both sides of the sealing sleeve, and the double sealing function is adopted, which is beneficial to provide multiple sealing effects, ensuring that the water vapor on the outer wall of the steel structure of the bridge is not easy to enter the connecting piece part, so as to ensure the durability of the connection, reduce the influence of water vapor and dust on the connecting fasteners, extend the service life, and ensure the safety of use.

[0013] 2. In the utility model, a sliding groove is arranged at the bottom of the bridge steel structure to cooperate with the sliding of the sliding seat, and the bottom cooperates with the bottom support plate to provide stable support, which is beneficial to ensure the effective connection between the bridge steel structures by connecting the sliding groove and the sliding seat to cooperate with the stable support of the bottom support plate before connection and tightening, thereby facilitating the convenience of fastening bolts and fastening nuts during tightening, avoiding the problem of heavy steel structure and inconvenient operation during bolt connection, and the buffer damping rod is supported at the bottom of the bottom support plate by the spring, which is beneficial to provide buffering and shock absorption effect, and at the same time, the bottom support seat provides convenient connection and installation effect at the bottom, thereby ensuring the overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional structural diagram of a bridge steel structure connecting fastener is proposed for the utility model;

[0015] Figure 2 A schematic diagram of the exploded structure of a bridge steel structure connecting fastener is proposed for the utility model;

[0016] Figure 3 A partially exploded structural diagram of a bridge steel structure connecting fastener is proposed for the utility model;

[0017] Figure 4 The utility model provides a partial cross-sectional structural schematic diagram of a bridge steel structure connecting fastener.

[0018] Legend: 1. Bridge steel structure; 2. Connectors; 3. Fastening bolts; 4. Fastening nuts; 5. Sealing sleeves; 6. Sealing strips; 7. Rotating shafts; 8. Cover plates; 9. Sealing pads; 10. Sliding grooves; 11. Sliding seats; 12. Bottom support plates; 13. Reinforced support strips; 14. Reinforced support blocks; 15. Buffering damping rods; 16. Springs; 17. Bottom support seats; 18. Sealing rubber frames; 19. Second-layer sealing frames. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0021] Example 1: Figure 1-Figure 4 As shown, the utility model provides a technical solution: a bridge steel structure connecting fastener, comprising a bridge steel structure 1, a connecting member 2 is arranged at one end of the bridge steel structure 1, a plurality of fastening bolts 3 are evenly distributed through the side of the connecting member 2, a fastening nut 4 is threadedly connected to the outer wall of one end of the fastening bolt 3, a sealing sleeve 5 is provided on the outer side of the connecting member 2, sealing strips 6 are provided on both sides of the sealing sleeve 5, a cover plate 8 is connected to one end of the sealing sleeve 5, a sealing gasket 9 is provided on the surface of the cover plate 8, the sealing gasket 9 is arranged on the top of the connecting member 2, a sealing rubber frame 18 is provided on the side of the sealing strip 6, a two-layer sealing frame 19 is provided on the inner side of the sealing rubber frame 18, the sealing rubber frame 18 and the two-layer sealing frame 19 are both connected to the outer wall of the bridge steel structure 1, a rotating shaft 7 is provided at one end of the cover plate 8, and the rotating shaft 7 is connected to one end of the sealing sleeve 5.

[0022] In this embodiment, a connector 2 is provided at one end of the bridge steel structure 1, which is convenient for connecting the two connectors 2. At the same time, the connectors 2 are penetrated and distributed by fastening bolts 3, and the fastening effect is achieved by tightening the fastening nut 4 and the fastening bolt 3, which is beneficial to ensuring the stability between the steel structures. The sealing sleeve 5 is sleeved on the outside of the connector 2, and cooperates with the sealing strip 6 to achieve three-sided sealing. At the same time, the rotating shaft 7 is convenient for connecting the cover plate 8 to the sealing sleeve 5, and cooperates with the sealing gasket 9 to cover the top of the connector 2, which is beneficial to further sealing on the top side. At the same time, the method of protrusions cooperating with the slot buckle is adopted, which is convenient for rapid installation and disassembly and improves the convenience of use. The sealing rubber frame 18 and the second-layer sealing frame 19 are symmetrically arranged on both sides of the sealing sleeve 5, and adopts the function of double sealing, which is beneficial to provide multiple sealing effects, ensuring that water vapor on the outer wall of the bridge steel structure 1 is not easy to enter the connector part, so as to ensure the durability of the connection, reduce the influence of water vapor and dust on the connecting fasteners, extend the service life, and ensure the safety of use.

[0023] Example 2: Figure 1-Figure 4 As shown, a sliding groove 10 is symmetrically arranged at the bottom of the bridge steel structure 1, a sliding seat 11 is slidably connected to the inner side of the sliding groove 10, a bottom support plate 12 is arranged at the bottom of the sliding seat 11, a plurality of buffer damping rods 15 are evenly distributed at the bottom of the bottom support plate 12, a spring 16 is arranged on the outer wall of the buffer damping rod 15, a bottom support seat 17 is installed at the bottom of the buffer damping rod 15, a plurality of reinforcing struts 13 are evenly distributed at the top of the bottom support plate 12, both ends of the reinforcing struts 13 are connected between the two sliding seats 11, a reinforcing support block 14 is arranged on the side of the sliding seat 11, and the bottom of the reinforcing support block 14 is connected to the top of the bottom support plate 12.

[0024] In this embodiment, the sliding groove 10 is arranged at the bottom of the bridge steel structure 1 to cooperate with the sliding of the sliding seat 11, and the bottom cooperates with the bottom support plate 12 to provide stable support, which is beneficial to ensure the effective connection between the bridge steel structure 1 through the connection between the sliding groove 10 and the sliding seat 11 before the connection and tightening, thereby facilitating the convenience of the fastening bolt 3 and the fastening nut 4 during tightening, avoiding the problem of heavy weight of the steel structure and inconvenient operation during bolt connection, and the buffer damping rod 15 is supported at the bottom of the bottom support plate 12 by the spring 16, which is beneficial to provide buffering and shock absorption effect, and at the same time, the bottom support seat 17 provides a connection and installation effect at the bottom, thereby ensuring the overall stability, and the reinforcing support bar 13 and the reinforcing support block 14 are beneficial to increase the strength during support, ensuring long-term stable use.

[0025] The working principle of this embodiment: when in use, first, before the connection and tightening, the sliding groove 10 and the sliding seat 11 are connected to cooperate with the stable support of the bottom support plate 12 to ensure the effective connection between the bridge steel structure 1, thereby facilitating the convenience of the fastening bolt 3 and the fastening nut 4 when tightening. When installing and connecting, the two connecting parts 2 are connected, and the fastening bolt 3 penetrates and distributes between the connecting parts 2. The fastening effect is achieved by tightening the fastening nut 4 and the fastening bolt 3, which is beneficial to ensure the stability between the steel structures. The sealing sleeve 5 is set on the outside of the connecting part 2, and cooperates with the sealing strip 6 to achieve three-sided sealing. At the same time, the rotating shaft 7 facilitates the connection of the cover plate 8 to the sealing sleeve 5, and cooperates with the sealing gasket 9 to cover the top of the connecting part 2, which is beneficial to Further sealing is achieved on one side of the top, and a method of combining a convex block with a slot buckle is adopted, which facilitates quick installation and disassembly and improves the convenience of use. The sealing rubber frame 18 and the second-layer sealing frame 19 are symmetrically arranged on both sides of the sealing sleeve 5, and a double sealing function is adopted, which is beneficial to provide multiple sealing effects, ensuring that water vapor on the outer wall of the bridge steel structure 1 is not easy to enter the connecting part, reducing the influence of water vapor and dust on the connecting fasteners, and the buffer damping rod 15 is supported at the bottom of the bottom support plate 12 in cooperation with the spring 16, which is beneficial to provide a buffering and shock-absorbing effect. At the same time, the bottom support seat 17 is convenient for providing a connection and installation effect at the bottom, thereby ensuring the overall stability. The reinforcing support bar 13 and the reinforcing support block 14 are beneficial to increase the strength during support.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A bridge steel structure connection fastener, comprising a bridge steel structure (1), characterized in that: A connecting piece (2) is provided at one end of the bridge steel structure (1), a plurality of fastening bolts (3) are evenly distributed through the side of the connecting piece (2), a fastening nut (4) is threadedly connected to the outer wall of one end of the fastening bolt (3), a sealing sleeve (5) is provided on the outer side of the connecting piece (2), sealing strips (6) are provided on both sides of the sealing sleeve (5), a cover plate (8) is connected to one end of the sealing sleeve (5), a sealing gasket (9) is provided on the surface of the cover plate (8), and the sealing gasket (9) is arranged on the top of the connecting piece (2), a sealing rubber frame (18) is provided on the side of the sealing strip (6), a second-layer sealing frame (19) is provided on the inner side of the sealing rubber frame (18), and the sealing rubber frame (18) and the second-layer sealing frame (19) are both connected to the outer wall of the bridge steel structure (1).

2. The bridge steel structure connection fastener according to claim 1, characterized in that: The bottom of the bridge steel structure (1) is symmetrically provided with sliding grooves (10), and the inner side of the sliding groove (10) is slidably connected with a sliding seat (11).

3. The bridge steel structure connection fastener according to claim 2, characterized in that: A bottom support plate (12) is provided at the bottom of the sliding seat (11), a plurality of buffer damping rods (15) are evenly distributed at the bottom of the bottom support plate (12), a spring (16) is provided on the outer wall of the buffer damping rod (15), and a bottom support seat (17) is installed at the bottom of the buffer damping rod (15).

4. The bridge steel structure connection fastener according to claim 3, characterized in that: A plurality of reinforcing struts (13) are evenly distributed on the top of the bottom support plate (12), and two ends of the reinforcing struts (13) are connected between two sliding seats (11).

5. The bridge steel structure connection fastener according to claim 2, characterized in that: A reinforcing support block (14) is provided on the side of the sliding seat (11), and the bottom of each reinforcing support block (14) is connected to the top of the bottom support plate (12).

6. The bridge steel structure connection fastener according to claim 1, characterized in that: A rotating shaft (7) is provided at one end of the cover plate (8), and the rotating shaft (7) is connected to one end of the sealing sleeve (5).

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