Steel truss structure for subway air shaft

Abstract

The utility model relates to the technical field of steel trusses, in particular to a steel truss structure for a subway air shaft, which comprises a lower steel truss and an upper steel truss, a plurality of supporting pieces are arranged between the lower steel truss and the upper steel truss, and two ends of each supporting piece are connected between the lower steel truss and the upper steel truss through fasteners. Two pull rods are obliquely arranged between every two adjacent supporting pieces, the upper ends of the pull rods are detachably connected to the upper steel truss through installation pieces, the lower ends of the pull rods are connected to fasteners, and the upper steel truss and the lower steel truss are supported through the supporting pieces, so that the installation stability and firmness of the supporting pieces can be guaranteed, and the service life is prolonged; the assembling difficulty of the steel truss can be reduced, the disassembling and assembling efficiency is improved, and the problems that in the prior art, when a steel truss structure is used for assembling a subway air shaft, time and labor are wasted, the assembling difficulty is large, much inconvenience is brought to disassembling and assembling work of the steel truss, stability and firmness are insufficient, and the assembling efficiency is poor are solved. And the service life is seriously threatened.

Description

Technical Field

[0001] This utility model relates to the field of steel truss technology, specifically to a steel truss structure for subway ventilation shafts. Background Technology

[0002] Steel trusses refer to trusses made of steel. They are used in industrial and civil buildings for roof structures, crane beams, bridges, and hydraulic gates. Steel trusses are commonly used as the main load-bearing components. Various types of towers, such as mast towers, television towers, and transmission line towers, are often spatial steel trusses composed of three-sided, four-sided, or multi-sided planar trusses.

[0003] Chinese Patent Publication No. CN220414673U discloses a prefabricated steel truss structure, relating to the field of steel truss technology. It includes an upper steel truss with a lower steel truss on one side. A connecting mechanism is provided between the upper and lower steel trusses. The connecting mechanism includes a first connecting member, with three connecting rods on one side. A second connecting member is provided at the other end of each connecting rod. An upper steel truss sliding groove is formed on one side of the first connecting member, and a first T-shaped groove is formed inside the upper steel truss sliding groove. This invention, through the connecting mechanism designed between the upper and lower steel trusses, allows users to disassemble the entire device before transportation, facilitating transport and enabling rapid installation upon arrival at the destination.

[0004] The steel truss structures described above are time-consuming and labor-intensive to assemble in subway ventilation shafts. They are difficult to assemble and cause many inconveniences to the disassembly and assembly of the steel trusses. Furthermore, their insufficient stability and robustness seriously threaten their service life. Summary of the Invention

[0005] The purpose of this utility model is to provide a steel truss structure for subway ventilation shafts, which overcomes the problems of existing steel truss structures being time-consuming and labor-intensive to assemble in subway ventilation shafts, having high assembly difficulty, causing many inconveniences to the disassembly and assembly of steel trusses, and having insufficient stability and firmness, which seriously threatens their service life.

[0006] To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problem is as follows:

[0007] A steel truss structure for subway ventilation shafts was designed. The upper and lower steel trusses are supported by brackets, and assembly is achieved using fasteners. This design ensures the stability and robustness of the bracket installation, extending its service life, while also reducing the difficulty of assembling the steel truss and improving its disassembly and assembly efficiency, thus saving manpower, material resources, and financial investment. The specific scheme is as follows:

[0008] A steel truss structure for a subway ventilation shaft includes a lower steel truss and an upper steel truss. Multiple support members are provided between the lower steel truss and the upper steel truss. Both ends of the support members are detachably connected between the lower steel truss and the upper steel truss by fasteners.

[0009] Two tie rods are inclinedly arranged between two adjacent support members. The upper end of the tie rod is detachably connected to the upper steel truss through an installation component, and the lower end of the tie rod is detachably connected to the fastener.

[0010] Preferably, the two tie rods are arranged in a figure-eight shape and inclined between the lower steel truss and the upper steel truss.

[0011] Preferably, I-beams are provided on both sides of the lower steel truss and the upper steel truss, and the support member is installed on the I-beams on both sides of the lower steel truss and the upper steel truss by means of the fasteners.

[0012] Preferably, the support includes a support column and a mounting plate. There are two mounting plates, which are respectively fixedly connected to the upper and lower ends of the support column. The fasteners are wrapped around the mounting plates and the I-beam.

[0013] Preferably, the fastener includes a first U-shaped slot and a second U-shaped slot, the first U-shaped slot being fastened to the mounting plate and the I-beam, and the second U-shaped slot being fastened to the support column;

[0014] The second U-shaped slot is vertically connected to the top side of the first U-shaped slot. The first U-shaped slot has first screw holes on the front and rear sides of the top. The first screw holes are provided with first bolts that pass through the first U-shaped slot, the mounting plate and the I-beam from top to bottom.

[0015] Preferably, the mounting component includes a third U-shaped slot, a vertical plate, a first mounting ramp, and a second screw hole. The third U-shaped slot is fastened to the underside of the I-beam of the upper steel truss, and the third U-shaped slot is mounted on the I-beam by a second bolt.

[0016] The vertical plate is located in the middle of the outer side of the third U-shaped slot, and there are two first mounting inclined platforms, which are located on the left and right sides of the vertical plate.

[0017] The first mounting ramp is provided with a first mounting hole, and the upper end of the pull rod is installed in the first mounting hole.

[0018] The beneficial effects of this utility model are:

[0019] 1. This utility model has I-shaped crossbeams on both sides of the upper and lower steel trusses, which is very beneficial for the disassembly and assembly of fasteners and installation parts. It can greatly reduce the difficulty of disassembly and assembly of steel trusses, improve their disassembly and assembly efficiency, and achieve the purpose of saving time and effort and facilitating disassembly and assembly.

[0020] 2. In this utility model, both the fasteners and the mounting parts adopt a U-shaped slot structure design, which can be fastened to the I-beam during the actual installation process. This not only provides effective positioning but also ensures the stability and firmness of the fasteners and mounting parts during actual use, preventing misalignment or sliding that could lead to deformation of the steel truss and affect its service life.

[0021] 3. In this utility model, the tie rods are distributed in a figure-eight shape between two adjacent support members and are installed between the bottom fastener and the top mounting member in an abutting manner, so as to improve the strength of the steel truss and at the same time, it can also tighten the fasteners and mounting members. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0023] Figure 2 This is a side view of the present invention;

[0024] Figure 3 This is a top view of the steel truss in this utility model;

[0025] Figure 4 This is a schematic diagram of the fastener structure in this utility model;

[0026] Figure 5 This is a schematic diagram of the mounting component in this utility model.

[0027] In the diagram: 1-Lower steel truss; 2-Supporting component; 21-Supporting column; 22-Mounting plate; 3-Fastener; 31-First U-shaped slot; 32-Second U-shaped slot; 33-Second mounting ramp; 34-Second mounting hole; 35-First screw hole; 4-Mounting component; 41-Third U-shaped slot; 42-Vertical plate; 43-First mounting ramp; 44-First mounting hole; 45-Second screw hole; 5-Upper steel truss; 6-First bolt; 7-Second bolt; 8-Tie rod. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0029] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, well-known structures, circuits, materials, or methods are not specifically described in order to avoid obscuring the present invention.

[0030] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0032] like Figure 1-5 As shown, this utility model provides a steel truss structure for subway ventilation shafts, including a lower steel truss 1 and an upper steel truss 5. Multiple support members 2 are provided between the lower steel truss 1 and the upper steel truss 5. The upper steel truss 5 and the lower steel truss 1 are assembled by the support members 2 to form a steel truss structure that can be used in subway ventilation shafts and is easy to assemble and disassemble. The two ends of the support members 2 are detachably connected between the lower steel truss 1 and the upper steel truss 5 by fasteners 3. The fasteners 3 can firmly and stably install the support members 2 between the lower steel truss 1 and the upper steel truss 5, and at the same time facilitate their disassembly, making it easy to assemble and disassemble in the small space inside the subway ventilation shaft. Two tie rods 8 are inclinedly arranged between two adjacent support members 2. The upper end of the tie rod 8 is detachably connected to the upper steel truss 5 by the mounting part 4, and the lower end of the tie rod 8 is detachably connected to the fastener 3. The tie rods 8 can improve the connection strength between the lower steel truss 1 and the upper steel truss 5, and also ensure the firmness of the fasteners 3 and the mounting part 4.

[0033] In the above scheme, the two tie rods 8 are inclinedly arranged in a figure-eight shape between the lower steel truss 1 and the upper steel truss 5.

[0034] As an optimized technical solution of this utility model, the two tie rods 8 adopt an eight-shaped structure, which can increase the stability of the connection between the lower steel truss 1 and the upper steel truss 5. During use, they can provide both tension and support capabilities, so that the lower steel truss 1 and the upper steel truss 5 will not easily undergo relative displacement, thereby affecting the overall service life of the steel truss structure.

[0035] In the above scheme, I-beams are respectively provided on both sides of the lower steel truss 1 and the upper steel truss 5, and the support 2 is installed on the I-beams on both sides of the lower steel truss 1 and the upper steel truss 5 by fasteners 3.

[0036] As an optimized technical solution of this utility model, the design of I-shaped crossbeams on both sides of the lower steel truss 1 and the upper steel truss 5 is very beneficial to the installation of fasteners 3 and mounting parts 4, which can effectively save time in the disassembly and assembly process and improve its disassembly and assembly efficiency.

[0037] In the above scheme, the support component 2 includes a support column 21 and a mounting plate 22. There are two mounting plates 22, which are fixedly connected to the upper and lower ends of the support column 21 respectively. Fasteners 3 are wrapped around the mounting plates 22 and the I-beam.

[0038] As an optimized technical solution of this utility model, the support column 21 provides effective support between the lower steel truss 1 and the upper steel truss 5, and the installation firmness and stability of the support column 21 are improved by the mounting plate 22. The width of the mounting plate 22 is the same as the width of the I-beam, and it can be fixed by fasteners 3 to reduce the difficulty of installation.

[0039] In the above scheme, the fastener 3 includes a first U-shaped slot 31 and a second U-shaped slot 32. The first U-shaped slot 31 is fastened to the mounting plate 22 and the I-beam, and the second U-shaped slot 32 is fastened to the support column 21. The second U-shaped slot 32 is vertically connected to one side of the top of the first U-shaped slot 31. The front and rear sides of the top of the first U-shaped slot 31 are provided with first screw holes 35. The first screw holes 35 are provided with first bolts 6 that pass through the first U-shaped slot 31, the mounting plate 22 and the I-beam sequentially from top to bottom.

[0040] As an optimized technical solution of this utility model, the U-shaped grooves on the inner sides of the first U-shaped slot 31 and the second U-shaped slot 32 are the same width as the I-beam, so that the fastener 3 can be firmly fastened to the I-beam. The first bolt 6 passes through the first screw hole 35 from top to bottom through the mounting plate 22 and the I-beam to complete the secure installation. The width of the second U-shaped slot 32 is the same as the width of the support column 21, so that the second U-shaped slot 32 can be firmly fastened to the support column 21. After being fixed by the first U-shaped slot 31, the second U-shaped slot 32 can be more firmly pressed against the support column 21, thus ensuring the stability and firmness of the support column 21.

[0041] In the above scheme, the mounting component 4 includes a third U-shaped slot 41, a vertical plate 42, a first mounting ramp 43, and a second screw hole 45. The third U-shaped slot 41 is fastened to the lower side of the I-shaped crossbeam of the upper steel truss 5. The third U-shaped slot 41 is installed on the I-shaped crossbeam by the second bolt 7. The vertical plate 42 is located in the middle of the outer side of the third U-shaped slot 41. There are two first mounting ramps 43, which are located on the left and right sides of the vertical plate 42. The first mounting ramp 43 is provided with a first mounting hole 44. The upper end of the tie rod 8 is installed in the first mounting hole 44 between the first U-shaped slot 31 and the second U-shaped slot 32 on the second mounting ramp 33.

[0042] As an optimized technical solution of this utility model, the width of the groove on the inner side of the third U-shaped groove 41 is consistent with the width of the I-shaped beam, so that the mounting part 4 can be firmly fastened to the I-shaped beam, and the upper end of the tie rod 8 can be inserted or threaded into the first mounting hole 44 on the first mounting platform 43, and the lower end of the tie rod 8 can be inserted or threaded into the second mounting hole 34, so as to improve the strength of the steel truss structure through the tie rod 8.

[0043] Specific implementation examples:

[0044] When the steel truss structure needs to be installed in the subway ventilation shaft, the upper steel truss 5 and the lower steel truss 1 can be arranged according to their positional relationship, and multiple support rods 21 can be arranged vertically and at equal intervals between the upper steel truss 5 and the lower steel truss 1 so as to be fixed by fasteners 3 on both sides of the support column 21.

[0045] During the fastener 3 fixing process, the first U-shaped slot 31 of the fastener 3 can be fastened to the mounting plate 22 and the I-beam, so that the second U-shaped slot 32 can be fastened from both sides of the support column 21, so that the fastener 3 abuts against both sides of the support column 21 respectively. Therefore, the fastener 3 can be fastened by the first bolt 6 passing through the first screw hole 35 through the mounting plate 22 and the I-beam.

[0046] Finally, the mounting component 4 is installed on the upper steel truss 5, located between two adjacent support columns 21, and fastened to the I-beam through the third U-shaped slot 41. Then, the upper and lower ends of the tie rod 8 are connected to the first mounting hole 44 and the second mounting hole 34 respectively, and fastened by the second bolt 7 passing through the second screw hole 45 through the I-beam. This improves the strength and stability of the steel truss structure, saves time and effort, reduces the difficulty of disassembly and assembly, and improves disassembly and assembly efficiency.

[0047] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A steel truss structure for a subway ventilation shaft, comprising a lower steel truss (1) and an upper steel truss (5), characterized in that: Multiple support members (2) are provided between the lower steel truss (1) and the upper steel truss (5). The two ends of the support members (2) are detachably connected between the lower steel truss (1) and the upper steel truss (5) by fasteners (3). Two tie rods (8) are inclinedly arranged between two adjacent support members (2). The upper end of the tie rod (8) is detachably connected to the upper steel truss (5) through the mounting member (4), and the lower end of the tie rod (8) is detachably connected to the fastener (3).

2. The steel truss structure for a subway ventilation shaft according to claim 1, characterized in that: The two tie rods (8) are arranged in a V-shape between the lower steel truss (1) and the upper steel truss (5).

3. The steel truss structure for a subway ventilation shaft according to claim 1, characterized in that: The lower steel truss (1) and the upper steel truss (5) are respectively provided with I-shaped crossbeams on both sides, and the support member (2) is installed on the I-shaped crossbeams on both sides of the lower steel truss (1) and the upper steel truss (5) by the fastener (3).

4. A steel truss structure for a subway ventilation shaft according to claim 3, characterized in that: The support member (2) includes a support column (21) and a mounting plate (22). There are two mounting plates (22). The two mounting plates (22) are fixedly connected to the upper and lower ends of the support column (21) respectively. The fastener (3) is wrapped around the mounting plate (22) and the I-beam.

5. A steel truss structure for a subway ventilation shaft according to claim 4, characterized in that: The fastener (3) includes a first U-shaped slot (31) and a second U-shaped slot (32). The first U-shaped slot (31) is fastened to the mounting plate (22) and the I-beam, and the second U-shaped slot (32) is fastened to the support column (21). The second U-shaped slot (32) is vertically connected to the top side of the first U-shaped slot (31). The first U-shaped slot (31) has first screw holes (35) on the front and rear sides of the top. The first screw holes (35) are provided with first bolts (6) that pass through the first U-shaped slot (31), the mounting plate (22) and the I-beam from top to bottom.

6. A steel truss structure for a subway ventilation shaft according to claim 1, characterized in that: The mounting component (4) includes a third U-shaped slot (41), a vertical plate (42), a first mounting ramp (43), and a second screw hole (45). The third U-shaped slot (41) is fastened to the underside of the I-shaped crossbeam of the upper steel truss (5). The third U-shaped slot (41) is mounted on the I-shaped crossbeam by a second bolt (7). The vertical plate (42) is located in the middle of the outer side of the third U-shaped slot (41), and there are two first mounting inclined platforms (43), which are located on the left and right sides of the vertical plate (42). The first mounting ramp (43) is provided with a first mounting hole (44), and the upper end of the pull rod (8) is installed in the first mounting hole (44).

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