Transportation island type station steel structure connecting device

Abstract

The utility model discloses a traffic transportation island type station steel structure connecting device, which relates to the technical field of steel structure connecting devices and comprises a first H-shaped steel structure column, a second H-shaped steel structure column, a right-angle fixing plate and a high-load bolt assembly. The high-load bolt assembly comprises a slotted bolt and a combined nut, and the combined nut is composed of a first nut, a second nut and a connecting piece. Compared with the prior art, riveting is easy to loosen, threaded connection is easy to slip, and tenon-and-mortise connection is easy to displace, but the device adopts the combination of a high-load bolt assembly and a right-angle fixing plate, and utilizes a strip-shaped groove, a tooth groove, a specially-made hollow pad and a double-nut structure on a screw rod, so that the connection stability is greatly enhanced, loosening and displacement are effectively prevented, and the structural stability of a station is guaranteed; meanwhile, compared with traditional riveting and tenon-and-mortise connection, installation is easy and convenient, the slotted bolt head is convenient to operate and position, installation can be rapidly and accurately completed, construction efficiency is improved, time and labor cost is reduced, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the technical field of steel structure connection devices, and in particular to a steel structure connection device for a transportation island station. Background Technology

[0002] In the construction of steel structures for island-type transportation stations, the stability of the connection devices is crucial; traditional connection methods such as riveting, threaded connections, and mortise and tenon connections have gradually revealed many problems in practical applications.

[0003] Threaded bolts and nuts are common steel structure connection methods and can meet some connection requirements under normal working conditions. However, in high-load environments such as transportation island stations, the friction between threads gradually decreases over time and under repeated external forces, making the nuts prone to loosening and stripping. Especially when subjected to large impact forces such as those generated during train starting and braking, the reliability of threaded connections is greatly reduced, and the long-term stability of the steel structure connection cannot be guaranteed. In view of this, this paper proposes a steel structure connection device for transportation island stations. Utility Model Content

[0004] The main purpose of this utility model is to provide a steel structure connection device for island-type transportation stations, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A steel structure connection device for a transportation island station includes a first H-shaped steel structure column and a second H-shaped steel structure column. Two right-angled fixing plates are provided symmetrically between one end of the second H-shaped steel structure column and the side wall of the first H-shaped steel structure column. Two or more high-load bolt assemblies are vertically connected to the contact connection between the right-angled fixing plates and the first H-shaped steel structure column or the second H-shaped steel structure column.

[0007] The high-load bolt assembly includes a slotted bolt and a combination nut. The slotted bolt includes a screw rod with an external thread on the outer periphery of the end of the screw rod. The combination nut is mainly composed of a coaxial first nut and a second nut. The inner rings of the first nut and the second nut are threaded onto the external thread at the end of the screw rod. Several connecting pieces are evenly fixedly connected between the outer rings of the first nut and the second nut.

[0008] Preferably, the screw has three strip grooves on the periphery of the end of the external thread, the strip grooves are parallel to the central axis of the screw, and a hollow washer is coaxially fixedly connected to one side of the second nut, the hollow washer having an annular groove inside.

[0009] Preferably, the first H-shaped steel structure column is provided with a plurality of first round holes for connecting high-load bolt assemblies, the second H-shaped steel structure column is provided with a plurality of second round holes for connecting high-load bolt assemblies, the two sides of the right-angled fixing plate are provided with a plurality of third round holes for connecting high-load bolt assemblies, and a triangular plate is fixedly connected between the inner corners of the right-angled fixing plate.

[0010] Preferably, the high-load bolt assembly further comprises a circular ring pad coaxially arranged on the periphery of the screw rod of the slotted bolt.

[0011] Preferably, the slotted bolt further comprises a bolt head fixedly installed at the first end of the screw rod.

[0012] Preferably, the two sides of the strip-shaped groove are provided with a plurality of tooth grooves in communication.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. High connection stability: the existing riveting method is easy to be affected by vibration to cause loose connection, the nut of the threaded connection is easy to be loose and slip under long-term high load, and displacement may occur when the mortise and tenon connection bears a large external force; the utility model adopts the combination of the high-load bolt assembly and the right-angled fixing plate, the strip-shaped groove and the tooth groove are arranged on the screw rod, the hollow pad specially made and the double-nut structure connected by the connecting piece are matched, and the stability of the connection is greatly enhanced; under the high-load transportation environment, such as vibration caused by frequent train passing, the displacement of the high-load bolt assembly and the connecting part can be effectively prevented, the reliability of the steel structure connection is ensured, and the overall stability of the station structure is ensured.

[0015] 2. Strong installation convenience: compared with the traditional riveting process which needs professional equipment for riveting operation and the mortise and tenon connection which has a very high requirement for the machining precision of the component and a relatively complex installation process, the installation process of the high-load bolt assembly of the utility model is simple and easy to implement; the bolt head design of the slotted bolt is convenient for operation and positioning, the installation can be quickly and accurately completed on the construction site, the construction efficiency is improved, and the installation time and labor cost are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the overall structure schematic view of the utility model;

[0017] Figure 2 is the partial exploded view of the utility model;

[0018] Figure 3 is the structure schematic view of the high-load bolt assembly in the utility model;

[0019] Figure 4It is the explosion view of the high-load bolt assembly in the utility model;

[0020] Figure 5 It is the structure schematic view of the combined nut in the utility model.

[0021] In the drawing: 1, first H-shaped steel structure column; 11, first circular hole; 2, second H-shaped steel structure column; 21, second circular hole; 3, right-angle fixed plate; 31, triangular plate; 32, third circular hole; 4, high-load bolt assembly; 41, slotted bolt; 411, screw rod; 412, bolt head; 413, external thread; 414, strip-shaped slot; 415, toothed slot; 42, combined nut; 421, first nut; 422, second nut; 423, hollow gasket; 424, annular slot; 425, connecting piece; 43, circular ring gasket. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0023] As shown in the drawing, Figures 1-5 A traffic transportation island type station steel structure connecting device, which comprises a first H-shaped steel structure column 1 and a second H-shaped steel structure column 2, and a right-angle fixed plate 3 is arranged between the two sides of one end of the second H-shaped steel structure column 2 and the side wall of the first H-shaped steel structure column 1, and the part in contact connection between the right-angle fixed plate 3 and the first H-shaped steel structure column 1 or the second H-shaped steel structure column 2 is vertically connected with two or more high-load bolt assemblies 4.

[0024] Referring to Figure 2 , a plurality of first circular holes 11 for connecting the high-load bolt assembly 4 are arranged on the first H-shaped steel structure column 1, a plurality of second circular holes 21 for connecting the high-load bolt assembly 4 are arranged on the second H-shaped steel structure column 2, a plurality of third circular holes 32 for connecting the high-load bolt assembly 4 are arranged on the two sides of the right-angle fixed plate 3, and a triangular plate 31 is fixedly connected between the inner angles of the right-angle fixed plate 3, and the arrangement of the triangular plate 31 can enhance the structural stability of the right-angle fixed plate 3, so that the right-angle fixed plate 3 can better bear external force when connecting the first H-shaped steel structure column 1 and the second H-shaped steel structure column 2.

[0025] Referring to Figure 3 , Figure 4 and Figure 5, high load bolt assembly 4 includes slotted bolt 41 and combined nut 42, slotted bolt 41 includes screw rod 411, the outer periphery of the end of screw rod 411 is provided with external thread 413, combined nut 42 is mainly composed of coaxial first nut 421 and second nut 422, the inner ring of first nut 421 and second nut 422 is threadedly installed on the external thread 413 of the end of screw rod 411, a plurality of connecting pieces 425 are uniformly fixedly connected between the outer rings of first nut 421 and second nut 422, slotted bolt 41 further includes bolt head 412, bolt head 412 is fixedly installed at the first end of screw rod 411, the design of bolt head 412 facilitates the operation and positioning of slotted bolt 41 during installation, so that it can accurately pass through each circular hole and be connected with the nut.

[0026] Reference Figure 3 And Figure 4 , high load bolt assembly 4 further includes circular ring pad 43, which is coaxially arranged on the outer periphery of screw rod 411 in slotted bolt 41, and the function of circular ring pad 43 is to further increase the stability of bolt connection and prevent the bolt from loosening or displacement due to external force during use.

[0027] Reference Figure 4 , the outer periphery of the end of external thread 413 in screw rod 411 is provided with three strip-shaped grooves 414, a plurality of tooth grooves 415 are arranged on both sides of strip-shaped groove 414 in communication, which can better lock second nut 422, strip-shaped groove 414 and the central axis in screw rod 411 are parallel to each other, hollow pad 423 is coaxially fixedly connected to one side of second nut 422, and annular groove 424 is arranged in hollow pad 423.

[0028] It should be noted that high load bolt assembly 4 utilizes the extrusion deformation of a plurality of connecting pieces 425 in combined nut 42, which is mainly used to ensure that first nut 421 and second nut 422 are stably fixedly installed on screw rod 411 in slotted bolt 41, and the specific process is that when first nut 421 and second nut 422 are tightened, connecting pieces 425 will be extruded to deform to a certain extent, thereby increasing the friction between first nut 421 or second nut 422 and screw rod 411 and the tightness of the connection, effectively preventing first nut 421 or second nut 422 from loosening during use.

[0029] Further supplement is that high load bolt assembly 4 also utilizes the fact that when hollow pad 423 is extruded, it can deform according to annular groove 424 in hollow pad 423, and further cooperates with the three strip-shaped grooves 414 on the outer periphery of inner ring screw rod 411, so that the inner ring of hollow pad 423 can be extruded into the three strip-shaped grooves 414 on the outer periphery of screw rod 411, and the rotation of second nut 422 can be limited by the rotation of hollow pad 423, thereby effectively avoiding the situation that second nut 422 slips and rotates.

[0030] It should be noted that the screw rod 411, the bolt head 412, the first nut 421, the second nut 422, the hollow washer 423, the connecting piece 425 and the circular ring washer 43 in the high-load bolt assembly 4 are all made of carbon steel, which has good strength and toughness and can meet the high-load requirements of the steel structure connection of the island station.

[0031] In the embodiment, the specific process of connecting the first H-shaped steel structure column 1 and the second H-shaped steel structure column 2 through the high-load bolt assembly 4 is as follows: first, place the hollow washer 423 towards the bolt head 412, pass the end of the screw rod 411 of the slotted bolt 41 through the third circular hole 32 in the rectangular fixing plate 3, coaxially pass through the first circular hole 11 in the first H-shaped steel structure column 1 and the second circular hole 21 in the second H-shaped steel structure column 2 in turn, and stop the bolt head 412 at the first end of the slotted bolt 41 on the rectangular fixing plate 3, then place the hollow washer 423 in the combined nut 42 towards the bolt head 412, and then tighten the second nut 422 on the first H-shaped steel structure column 1 or the second H-shaped steel structure column 2 using a wrench, in the process of tightening the second nut 422, the second nut 422 will press the hollow washer 423 to be arranged on the first H-shaped steel structure column 1 or the second H-shaped steel structure column 2, the inner ring of the hollow washer 423 is pressed into the three strip-shaped grooves 414 and the tooth groove 415 around the screw rod 411, so as to limit the rotation of the second nut 422, after the hollow washer 423 is embedded in the strip-shaped groove 414, the tooth groove 415 can further increase the contact area and friction force with the hollow washer 423, so as to better prevent the second nut 422 from loosening, and when the second nut 422 rotates, the second nut 422 can drive the first nut 421 to rotate synchronously with the second nut 422 through the connecting piece 425, after the second nut 422 is tightened, the first nut 421 is tightened by rotating using a wrench, the rotating first nut 421 can twist and deform several connecting pieces 425, change the distance between the first nut 421 and the second nut 422, and through the tension of the several connecting pieces 425, the gap between the inner ring of the first nut 421 and the second nut 422 and the outer thread 413 at the end of the screw rod 411 can be effectively compensated, so as to achieve the purpose of increasing the stability of the high-load bolt assembly 4.

[0032] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A steel structure connection device for an island-type transportation station, comprising a first H-shaped steel structure column (1) and a second H-shaped steel structure column (2), wherein two mutually symmetrical right-angled fixing plates (3) are provided between one end of the second H-shaped steel structure column (2) and the side wall of the first H-shaped steel structure column (1), characterized in that: The right-angled fixing plate (3) is vertically connected to the first H-shaped steel structure column (1) or the second H-shaped steel structure column (2) by two or more high-load bolt assemblies (4); The high-load bolt assembly (4) includes a slotted bolt (41) and a combination nut (42). The slotted bolt (41) includes a screw (411) with an external thread (413) on the outer periphery of the end of the screw (411). The combination nut (42) is mainly composed of a coaxial first nut (421) and a second nut (422). The inner rings of the first nut (421) and the second nut (422) are threaded onto the external thread (413) at the end of the screw (411). Several connecting pieces (425) are uniformly fixedly connected between the outer rings of the first nut (421) and the second nut (422).

2. The steel structure connection device for a transportation island station according to claim 1, characterized in that: The screw (411) has three strip grooves (414) on the outer periphery of the external thread (413) at the end. The strip grooves (414) and the central axis of the screw (411) are parallel to each other. A hollow washer (423) is coaxially fixedly connected to one side of the second nut (422). An annular groove (424) is provided inside the hollow washer (423).

3. The steel structure connection device for a transportation island station according to claim 1, characterized in that: The first H-shaped steel column (1) is provided with a number of first round holes (11) for connecting high-load bolt assemblies (4), the second H-shaped steel column (2) is provided with a number of second round holes (21) for connecting high-load bolt assemblies (4), and the right-angled fixing plate (3) is provided with a number of third round holes (32) for connecting high-load bolt assemblies (4) on both sides. Furthermore, a triangular plate (31) is vertically fixed between the inner angles of the right-angled fixing plate (3).

4. The steel structure connection device for a transportation island station according to claim 1, characterized in that: The high-load bolt assembly (4) also includes a ring washer (43), which is coaxially disposed around the screw (411) in the slotted bolt (41).

5. The steel structure connection device for a transportation island station according to claim 1, characterized in that: The slotted bolt (41) also includes a bolt head (412), which is fixedly installed at the head end of the screw (411).

6. The steel structure connection device for a transportation island station according to claim 2, characterized in that: The two sides of the strip groove (414) are connected by a number of toothed grooves (415).

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