Fabricated steel truss

Abstract

The utility model provides an assembly type steel truss. The assembly type steel truss comprises a truss main body, the connecting piece comprises a first connecting piece and a second connecting piece; the first connecting piece and the second connecting piece are arranged on different truss main bodies, a limiting hole is formed in the second connecting piece, and a mounting hole is formed in the first connecting piece; and after the locking bolt penetrates through the mounting hole, a locking piece arranged in the locking bolt can push a limiting ball arranged at the front end of the locking bolt to be clamped in the limiting hole. In the spiral abutting process of the locking piece, the limiting ball extends out of the mounting rod under the pushing effect and is connected with the annular limiting groove preset in the limiting hole in a clamped mode, the locking piece is assembled in the mounting rod, the sealing structure is adopted for sealing the locking piece, and therefore the locking piece is not prone to falling off. The situation that the structure is difficult to disassemble in the later period due to corrosion in the outdoor environment can be avoided, and the whole assembling and disassembling process is more convenient and faster.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction, and in particular relates to an assembled steel truss. Background Art

[0002] Prefabricated steel trusses are usually used in the construction of temporary buildings. During use, prefabricated steel trusses will undergo repeated disassembly and assembly processes, so most prefabricated steel trusses require the ability to be easily disassembled and assembled.

[0003] In the prior art, prefabricated steel trusses are mostly connected and fixed with simple bolt structures. However, temporary buildings are usually constructed at different locations. In some outdoor environments, simple bolt structures are easily corroded by external factors such as rain, causing inconvenience in assembly and disassembly. Utility Model Content

[0004] The utility model provides an assembled steel truss, aiming to solve the problem that the existing assembled steel truss adopts a simple bolt structure and is easily corroded by external factors such as rainwater, resulting in inconvenience in assembly and disassembly.

[0005] The utility model is implemented in this way: an assembled steel truss comprises:

[0006] Truss body;

[0007] Connectors, the connectors comprising a first connector and a second connector; the first connector and the second connector are arranged on different truss bodies, the second connector is provided with a limiting hole, and the first connector is provided with a mounting hole;

[0008] The locking bolt, after the locking bolt passes through the mounting hole, the locking piece arranged inside the locking bolt will push the limiting bead arranged at the front end of the locking bolt to engage in the limiting hole.

[0009] Preferably, the locking bolt further comprises a limit plate and a mounting rod;

[0010] An assembly hole for accommodating a locking piece is provided inside the mounting rod, the limiting bead is arranged at the end of the assembly hole, the locking piece is connected to a threaded connection provided on the inner wall of the mounting rod, and the limiting bead extends out of the mounting rod under the pushing action during the screwing of the locking piece.

[0011] Preferably, the mounting rod comprises a main rod body and a limiting rod body; the limiting rod body is arranged at one end of the main rod body, and the assembly hole of the mounting rod extends from the main rod body away from the end surface of the limiting rod body to the inside of the limiting rod body.

[0012] Preferably, a push block and a spring are further provided in the assembly hole, and a guide ring is provided on one side of the main rod body close to the limiting rod body;

[0013] The pushing block is assembled in the guide ring; one end of the spring is in contact with the locking piece, and the other end extends into the guide ring and is in contact with the pushing block.

[0014] Preferably, the locking member comprises a threaded section, a sealing section and a pushing section; the threaded section is located at one end of the locking member close to the pushing block, and the sealing section is located between the pushing section and the threaded section.

[0015] Preferably, a sealing ring adapted to the sealing section is provided in the assembly hole;

[0016] A threaded ring is also arranged in the assembly hole, and the threaded section is threadedly connected with the threaded ring.

[0017] When the threaded section continuously pushes toward one side of the limiting rod body, the sealing section will be completely pressed onto the sealing ring.

[0018] Preferably, the limiting plate is arranged on the main rod body away from the limiting rod body, and the limiting plate is provided with an operating hole for accommodating the passage of an operating tool.

[0019] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0020] 1. In the process of spirally advancing the locking piece, the limit bead of the assembled steel truss provided by the utility model extends out of the mounting rod under the pushing action, and is engaged and connected with the annular limit groove preset in the limit hole. The locking piece is assembled inside the mounting rod, and the locking piece is sealed by a sealing structure. The corresponding movable parts are all located inside the equipment, which can avoid the situation that the structure is corroded in the outdoor environment and is difficult to disassemble later, making the entire assembly and disassembly process more convenient.

[0021] 2. The assembled steel truss provided by the utility model is also provided with a sealing coating through the outer wall of the main rod body. When the main rod body is inserted into the mounting hole and the limiting hole, the sealing coating will fit the inner wall of the mounting hole and the limiting hole to the greatest extent, preventing rainwater from entering the interior of the equipment, thereby improving the corrosion resistance of the equipment and reducing the difficulty of later disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a structural schematic diagram of an assembled steel truss provided by the utility model.

[0023] Figure 2 The utility model is a schematic diagram of the locking bolts and connecting parts structure of an assembled steel truss.

[0024] Figure 3 The utility model is a schematic diagram of a locking bolt structure of an assembled steel truss.

[0025] Figure 4The utility model is a schematic diagram of the structure inside a central locking bolt of an assembled steel truss provided by the utility model.

[0026] Figure 5 The utility model is a schematic diagram of a locking member structure of an assembled steel truss.

[0027] Figure 6 The utility model is a schematic diagram of the internal structure of a limiting rod body of an assembled steel truss provided by the utility model.

[0028] Description of reference numerals:

[0029] 100. Truss body;

[0030] 200, connecting member; 210, first connecting member; 211, mounting hole; 220, second connecting member; 221, limiting hole; 222, annular limiting groove;

[0031] 300, locking bolt; 310, limiting plate; 320, mounting rod; 321, main rod body; 322, limiting rod body; 323, spring; 324, guide ring; 325, sealing ring; 326, threaded ring; 330, locking piece; 331, threaded section; 332, sealing section; 333, pushing section; 334, screw hole; 335, waterproof rubber pad; 340, pushing block; 350, limiting bead. DETAILED DESCRIPTION

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0033] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] The utility model embodiment provides a fabricated steel truss, such as Figure 1-Figure 6 As shown, the assembled steel truss comprises:

[0035] Truss body 100;

[0036] The connecting member 200 includes a first connecting member 210 and a second connecting member 220; the first connecting member 210 and the second connecting member 220 are arranged on different truss bodies 100, the first connecting member 210 and the second connecting member 220 are butted against each other, and different truss bodies 100 are assembled and connected with the help of the first connecting member 210 and the second connecting member 220;

[0037] The locking bolt 300 connects the first connecting member 210 and the second connecting member 220, and the second connecting member 220 is provided with a limiting hole 221, and the first connecting member 210 is provided with a mounting hole 211; after the locking bolt 300 passes through the mounting hole 211, the locking member 330 provided inside the locking bolt 300 will push the limiting bead 350 provided at the front end of the locking bolt 300 to engage in the limiting hole 221.

[0038] In the present application, the first connecting member 210 and the second connecting member 220 as connecting ends can be arranged at fixed positions of the truss body 100 as needed, and the first connecting member 210 and the second connecting member 220 will not be disassembled again after the connection is completed; and the locking bolt 300 is mainly used as an assembly component during the assembly process;

[0039] The locking bolt 300 also includes a limiting plate 310 and a mounting rod 320. An assembly hole for accommodating a locking member 330 is provided inside the mounting rod 320. The limiting bead 350 is arranged at the end of the assembly hole. The locking member 330 is connected to a thread provided on the inner wall of the mounting rod 320. During the process of the locking member 330 being screwed in, the limiting bead 350 extends out of the mounting rod 320 under the pushing action and is engaged with the annular limiting groove 222 preset in the limiting hole 221. The locking member 330 is assembled inside the mounting rod 320, and a sealing structure is used to seal the locking member 330, so as to avoid the situation that the thread structure is corroded in an outdoor environment and is difficult to disassemble later, making the entire assembly and disassembly process more convenient.

[0040] As a preferred implementation in this embodiment, the mounting rod 320 includes a main rod body 321 and a limiting rod body 322; the limiting rod body 322 is arranged at one end of the main rod body 321, and the assembly hole of the mounting rod 320 extends from the main rod body 321 away from the end surface of the limiting rod body 322 to the inside of the limiting rod body 322; the assembly hole does not penetrate the limiting rod body 322, and the end of the limiting rod body 322 away from the main rod body 321 is a closed structure, and the limiting bead 350 is confined in the limiting rod body 322;

[0041] A push block 340 and a spring 323 are also provided in the assembly hole. A guide ring 324 is provided on the side of the main rod body 321 close to the limiting rod body 322. The push block 340 is assembled in the guide ring 324. The locking piece 330 is threadedly connected to the assembly hole. One end of the spring 323 is in contact with the locking piece 330, and the other end extends into the guide ring 324 and is in contact with the push block 340.

[0042] The end of the push block 340 away from the spring 323 extends from the inside of the main rod body 321 to the inside of the limiting rod body 322, and the part of the push block 340 extending into the limiting rod body 322 is in contact with the limiting bead 350;

[0043] In this embodiment, the locking member 330 continuously applies pressure to the spring 323 under the action of screwing in the thread, so that the spring 323 transmits the elastic force to the pushing block 340. Since the pushing block 340 is pressed, it will abut against the limiting bead 350. Since the position of the pushing block 340 is relatively locked, the limiting bead 350 cannot be retracted into the limiting rod body 322; thus, the limiting bead 350 can only be engaged in the annular limiting groove 222.

[0044] When the locking member 330 is spirally withdrawn, the spring 323 is no longer under pressure. At this time, the limiting bead 350 is still engaged in the annular limiting groove 222 under the action of elastic force. However, when the locking bolt 300 leaves the limiting hole 221, the spring 323 is deformed to provide movement space for the push block 340, and the limiting bead 350 is retracted into the limiting rod body 322 as in the principle of the ball-touching structure.

[0045] The limiting rod body 322 is provided with a plurality of circular holes, the diameter of the circular holes is slightly smaller than the diameter of the limiting bead 350, and the limiting bead 350 partially extends out of the limiting rod body 322 from the circular holes. The end of the pushing block 340 facing the limiting bead 350 is a truncated cone structure, and the limiting bead 350 is in contact with the inclined surface structure of the pushing block 340;

[0046] As a preferred implementation in this embodiment, the locking member 330 includes a threaded section 331, a sealing section 332 and a pushing section 333; the threaded section 331 is located at one end of the locking member 330 close to the pushing block 340, the sealing section 332 is located between the pushing section 333 and the threaded section 331, a sealing ring 325 and a threaded ring 326 adapted to the sealing section 332 are provided in the assembly hole, and the threaded section 331 is threadedly connected to the threaded ring 326;

[0047] In this embodiment, the sealing section 332 is a slope structure. As the threaded section 331 continuously pushes into the sealing section 332, it will be completely pressed onto the sealing ring 325. The threaded section 331 is located inside the sealing section 332, which can effectively prevent rainwater from entering the threaded section 331, thereby preventing the equipment from rusting to the greatest extent. The outer wall of the main rod body 321 is also provided with a sealing coating. When the main rod body 321 is inserted into the mounting hole 211 and the limiting hole 221, the sealing coating will fit the inner wall of the mounting hole 211 and the limiting hole 221 to the greatest extent, thereby preventing rainwater from entering.

[0048] The limit plate 310 is arranged on the main rod body 321 away from the limit rod body 322, and the limit plate 310 is provided with an operating hole for accommodating an operating tool. The end face of the pushing section 333 away from the sealing section 332 is provided with a hexagonal screw hole, and an hexagonal wrench can be inserted into the hexagonal screw hole from the operating hole to tighten, lock or unlock.

[0049] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0050] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. An assembled steel truss, characterized in that: include: Truss body; Connectors, the connectors comprising a first connector and a second connector; the first connector and the second connector are arranged on different truss bodies, the second connector is provided with a limiting hole, and the first connector is provided with a mounting hole; The locking bolt, after the locking bolt passes through the mounting hole, the locking piece arranged inside the locking bolt will push the limiting bead arranged at the front end of the locking bolt to engage in the limiting hole.

2. The assembled steel truss according to claim 1, characterized in that: The locking bolt also includes a limit plate and a mounting rod; An assembly hole for accommodating a locking piece is provided inside the mounting rod, the limiting bead is arranged at the end of the assembly hole, the locking piece is connected to a threaded connection provided on the inner wall of the mounting rod, and the limiting bead extends out of the mounting rod under the pushing action during the screwing of the locking piece.

3. The assembled steel truss according to claim 2, characterized in that: The mounting rod comprises a main rod body and a limiting rod body; the limiting rod body is arranged at one end of the main rod body, and the assembly hole of the mounting rod extends from the main rod body away from the end surface of the limiting rod body to the inside of the limiting rod body.

4. The assembled steel truss according to claim 3, characterized in that: A push block and a spring are also provided in the assembly hole, and a guide ring is provided on one side of the main rod body close to the limiting rod body; The pushing block is assembled in the guide ring; one end of the spring is in contact with the locking piece, and the other end extends into the guide ring and is in contact with the pushing block.

5. The assembled steel truss according to claim 4, characterized in that: The locking member comprises a threaded section, a sealing section and a pushing section; the threaded section is located at one end of the locking member close to the pushing block, and the sealing section is located between the pushing section and the threaded section.

6. The assembled steel truss according to claim 5, characterized in that: A sealing ring adapted to the sealing section is provided in the assembly hole; A threaded ring is also provided in the assembly hole, and the threaded section is threadedly connected to the threaded ring. When the threaded section continuously pushes toward one side of the limiting rod body, the sealing section will be completely pressed onto the sealing ring.

7. The assembled steel truss according to claim 6, characterized in that: The limiting plate is arranged on the main rod body away from the limiting rod body, and the limiting plate is provided with an operating hole for accommodating the passage of an operating tool.

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