Beam truss structure of light modular fast-assembly portal frame

Abstract

The utility model relates to the technical field of portal frames, in particular to a cross beam truss structure of a light modular fast-splicing portal frame, which comprises a cross beam truss formed by connecting a plurality of cross beam truss sections end to end. Each cross beam truss section comprises four truss rods, the four truss rods form a cuboid frame, and the left side and the right side of the outer wall of the cuboid frame are fixedly connected with four fixing rods respectively to form a hollow cuboid frame. According to the cross beam truss structure of the light modular fast-splicing portal frame, the cross beam truss sections are improved, and the truss rods, the fixing rods, the horizontal connecting rods, the triangular reinforcing rods and the mounting rods of the cross beam truss sections are arranged to be of a hollow structure with cross-shaped reinforcing ribs arranged inside, so that the weight of the cross beam truss structure is reduced, and the structural stability of the cross beam truss structure is improved; and meanwhile, the bolt and the nut are arranged for connection, so that the purpose of quick installation can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry frames, in particular to a crossbeam truss structure of a light modular quick-assembly gantry frame. Background Art

[0002] Rail transit transportation line steel structure gantry, mainly angle steel and steel plate welded into trusses, and then assembled into trusses; each gantry group includes 3 truss installations, namely 2 columns and 1 beam, which requires 1 flatbed truck. Column size: 0.8 meters long, 0.8 meters wide, 10.5 meters high (weight about 1.5 tons); beam: 20.8 meters long / 12 meters, 0.8 meters wide, 1.45 meters high (weight 3.8 tons / 2.2 tons).

[0003] The existing steel gantry needs a 25-ton rail crane and two flatbed trucks in the power supply section for transportation. They are assembled in the material warehouse of the power supply workshop, and the columns and beams of the gantry are hoisted onto the flatbed truck for reinforcement and locking. The gantry is hoisted by a rail crane (25T crane) with a 17-meter-long crane arm and a working radius of 10 meters. Two flatbed trucks (a bogie is required to transport a 20.8-meter-long beam) are towed by the rail crane to enter the construction site. The existing gantry requires large equipment from transportation to installation. The heavy weight of the components will take a long time and cost to install. Therefore, it is necessary to develop a light modular quick-assembly gantry beam truss structure to reduce its weight and improve its structural stability, so as to completely get rid of the crane and flatbed truck transportation, so as to achieve efficient and safe construction and reduce installation costs. Utility Model Content

[0004] The purpose of the utility model is to provide a beam truss structure of a light modular quick-assembly gantry to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A beam truss structure of a lightweight modular quick-assembly gantry, comprising: a plurality of beam truss sections connected end to end to form a beam truss;

[0007] Each of the crossbeam truss sections comprises: four truss rods, the four truss rods form a rectangular parallelepiped frame, and the left and right sides of the outer wall are respectively fixedly connected with four fixing rods to form a hollow rectangular parallelepiped frame;

[0008] Two first connecting plates and a second connecting plates are fixedly connected to both sides of the beam truss section, respectively. The two first connecting plates are arranged above both sides of the beam truss section, and the two second connecting plates are arranged below both sides of the beam truss section for fixing the beam truss sections.

[0009] Preferably, a triangular reinforcing rod is fixedly connected between the front and rear two longitudinal truss rods of each cross beam truss section to strengthen the strength of the cross beam truss section. The triangular reinforcing rod installed between the longitudinal truss rods has the function of improving the structural strength of the cross beam truss when in use and improving its stability.

[0010] Preferably, a horizontal connecting rod is fixedly connected between the two truss rods below each cross beam truss section to strengthen the lateral strength between the cross beam truss sections. The horizontal connecting rod is further provided to improve the strength in the horizontal direction.

[0011] Preferably, three mounting rods are fixedly connected between the two truss rods above each cross beam truss section, and mounting blocks are fixedly connected on both sides of each mounting rod for mounting the guardrail base. The mounting blocks are provided to facilitate mounting the guardrail on the top of the cross beam truss.

[0012] Preferably, the four inner corners between the cross beam truss section and the holes formed by the three mounting rods are connected with bases for mounting a grid support plate. By mounting the grid support plate in the holes formed by the cross beam truss section, it is convenient for construction workers to mount the guardrail, and at the same time, the grid support plate can be level with the top of the cross beam truss section, thereby improving the stability of the top.

[0013] Preferably, bolts are provided on the first and second connecting plates on the right side, and nuts are provided on the first and second connecting plates on the left side, and the nuts at the head and tail are used to fix the bolts. By providing the bolts and nuts, the two groups of beam truss sections can be conveniently assembled in a modular manner, thereby improving the installation efficiency.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The crossbeam truss structure of the light modular quick-assembly gantry is improved by improving the crossbeam truss section and arranging the truss rods, fixing rods, horizontal connecting rods, triangular reinforcing rods and mounting rods of the crossbeam truss section into a hollow structure with cross-shaped reinforcing ribs inside, thereby reducing its weight and improving its structural stability. At the same time, it can be connected by means of provided bolts and nuts to achieve the purpose of rapid installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the beam truss section of the utility model;

[0018] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0019] In the figure: 1, beam truss section; 2, mounting block; 3, base; 4, first connecting plate; 5, bolt; 6, second connecting plate; 7, nut; 11, truss rod; 12, fixing rod; 13, horizontal connecting rod; 14, triangular reinforcing rod; 15, mounting rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, it can be fixed connection, setting, or detachable connection, setting, or integral connection, setting. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0024] like Figure 1-3 As shown, a beam truss structure of a lightweight modular quick-assembly gantry includes: a plurality of beam truss sections 1 are connected end to end and assembled to form a beam truss;

[0025] Each crossbeam truss section 1 comprises: four truss rods 11, the four truss rods 11 form a rectangular parallelepiped frame, and the left and right sides of the outer wall thereof are respectively fixedly connected with four fixing rods 12, forming a hollow rectangular parallelepiped frame;

[0026] Two first connecting plates 4 and second connecting plates 6 are fixedly connected on both sides of the beam truss section 1, respectively. The two first connecting plates 4 are arranged above both sides of the beam truss section 1, and the two second connecting plates 6 are arranged below both sides of the beam truss section 1 for fixing the beam truss sections 1.

[0027] like Figure 2 As shown, in order to improve the stability of the cross beam truss, a triangular reinforcing rod 14 is fixedly connected between the front and rear two longitudinal truss rods 11 of each cross beam truss section 1 to strengthen the strength of the cross beam truss section 1. The triangular reinforcing rod 14 installed between the longitudinal truss rods 11 has the function of improving the structural strength of the cross beam truss when in use, and at the same time improving its stability.

[0028] like Figure 2 As shown, in order to improve the structural strength in the horizontal direction, a horizontal connecting rod 13 is fixedly connected between the two truss rods 11 below each cross beam truss section 1 to strengthen the lateral strength between the cross beam truss sections 1. The horizontal connecting rod 13 is further improved by the provision of the horizontal connecting rod.

[0029] like Figure 2 As shown, in order to modularly install the guardrail on the top of the beam truss section 1, three mounting rods 15 are fixedly connected between the two truss rods 11 above each beam truss section 1, and mounting blocks 2 are fixedly connected on both sides of each mounting rod 15 for mounting the guardrail base. The provided mounting blocks 2 facilitate the installation of the guardrail on the top of the beam truss.

[0030] like Figure 1-3 As shown, in order to more safely install the guardrail on the top of the beam truss, the base 3 is connected to the four inner corners between the holes formed by the beam truss section 1 and the three mounting rods 15, for installing the grid support plate. By installing the grid support plate in the hole formed by it, it is convenient for construction workers to go up to install the guardrail, and at the same time, the grid support plate can be level with the top of the beam truss section 1, thereby improving the stability of its top.

[0031] like Figure 1-3 As shown, in order to conveniently and quickly connect the beam truss sections 1 in a modular manner, bolts 5 are provided on the first connecting plate 4 and the second connecting plate 6 on the right side, and nuts 7 are provided on the first connecting plate 4 and the second connecting plate 6 on the left side, and the nuts 7 at the head and tail are fixed in the bolts 5. Through the provided bolts 5 and nuts 7, the two groups of beam truss sections 1 can be conveniently assembled in a modular manner, thereby improving the installation efficiency.

[0032] The working principle of the utility model is as follows:

[0033] When in use, the crossbeam truss section 1 is directly assembled and connected by bolts 5 and nuts 7, thereby achieving the purpose of rapid installation. Then, it is directly placed on the lifting sleeve through its top and installed on the top of the gantry for installation.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A beam truss structure of a lightweight modular quick-assembly gantry, characterized in that: include: A plurality of cross beam truss sections (1) are connected end to end and assembled into a cross beam truss; Each of the crossbeam truss sections (1) comprises: four truss rods (11), the four truss rods (11) forming a rectangular parallelepiped frame, and the left and right sides of the outer wall of the truss rods are respectively fixedly connected with four fixing rods (12) to form a hollow rectangular parallelepiped frame; Two first connecting plates (4) and a second connecting plate (6) are respectively fixedly connected on both sides of the cross beam truss section (1), wherein the two first connecting plates (4) are arranged above both sides of the cross beam truss section (1), and the two second connecting plates (6) are arranged below both sides of the cross beam truss section (1), for fixing the cross beam truss sections (1).

2. The beam truss structure of the lightweight modular quick-assembly gantry according to claim 1 is characterized by: A triangular reinforcing rod (14) is fixedly connected between the front and rear two longitudinal truss rods (11) of each crossbeam truss section (1) to strengthen the strength of the crossbeam truss section (1).

3. The beam truss structure of the lightweight modular quick-assembly gantry according to claim 1 is characterized by: A horizontal connecting rod (13) is fixedly connected between the two truss rods (11) below each cross beam truss section (1) to strengthen the transverse strength between the cross beam truss sections (1).

4. The beam truss structure of the lightweight modular quick-assembly gantry according to claim 1 is characterized by: Three mounting rods (15) are fixedly connected between the two truss rods (11) above each crossbeam truss section (1), and mounting blocks (2) are fixedly connected on both sides of each mounting rod (15) for mounting a guardrail base.

5. The beam truss structure of the lightweight modular quick-assembly gantry according to claim 1 is characterized by: The four inner corners between the holes formed by the crossbeam truss section (1) and the three mounting rods (15) are connected with bases (3) for mounting a grid support plate.

6. The beam truss structure of the lightweight modular quick-assembly gantry according to claim 1 is characterized by: Bolts (5) are arranged on the first connecting plate (4) and the second connecting plate (6) on the right side, and nuts (7) are arranged on the first connecting plate (4) and the second connecting plate (6) on the left side, and are fixed in the bolts (5) through the nuts (7) at the head and tail.

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