Hinge connection structure of flange-extending rectangular pipes and rectangular pipes

Abstract

The utility model relates to a hinge connection structure of flange-extending rectangular pipes and rectangular pipes. The hinge connection structure for the flange-extended rectangular pipe and the rectangular pipe comprises a connecting seat, two extension plates, a large-diameter stud and two mounting nuts, the connecting seat is arranged at the belly part of the rectangular pipe with the outwards-extending flanges and comprises two vertical plates which are symmetrically arranged; the vertical plate is axially arranged perpendicular to the flange extending rectangular pipe and is provided with a through hole A; the extension plates are symmetrically arranged at the ends of the rectangular pipe and provided with second through holes matched with the first through holes. The stud penetrates through the through hole A and the through hole B; and the end part of the stud is in threaded fit with the mounting nut. According to the utility model, only one large-diameter stud is used for enabling the rectangular pipes with the overhanging flanges to be in a hinged connection relationship, so that the connection difficulty of the rectangular pipes with the overhanging flanges can be reduced, the on-site repair is avoided, the construction period is guaranteed, and the construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structures, in particular to a hinged connection structure of a flange-extended rectangular tube and a rectangular tube. Background Art

[0002] Exhibition halls, railway stations, and bus stations are large-span steel structures. In such large-span steel structures, in order to ensure adequate lighting and smooth air flow, suspension beams need to be set up on the steel structure roof for installing lamps, fans, etc. A lower chord is set at the bottom of the steel structure roof truss. The suspension beam is connected to the lower chord. Generally, the suspension beam will use a box beam with a rectangular tube cross section; the roof truss will use a box beam with a flange extended rectangular tube cross section. The existing lower chord and suspension beam are mostly connected using multiple sets of bolts; the installation process of the lower chord and suspension beam is as follows: the lower chord is lifted by the lifting equipment along with the roof truss, and then connected to the top of the column; then, the suspension beam is lifted by the lifting equipment, and the position of the suspension beam is adjusted so that the bolt holes on the suspension beam are aligned with the bolt holes of the lower chord; finally, bolts are used to pass through the bolt holes one by one for connection. Due to the existence of production errors and installation errors, it is difficult for the existing connection structure between the lower chord and the suspension beam to ensure that all bolt holes can be aligned, and on-site repairs often occur. On-site repair not only delays construction schedule and increases construction costs, but also has the potential to damage the structural strength of the beam. Utility Model Content

[0003] The utility model aims to solve the above problems and provides a structure in which a flange-extended rectangular tube and a rectangular tube are hingedly connected.

[0004] The technical scheme of the utility model is: a hinged connection structure of a flange protruding rectangular tube and a rectangular tube, comprising a connecting seat, two extension plates, a large-diameter stud bolt, and two mounting nuts; the connecting seat is arranged on the belly of the flange protruding rectangular tube, and comprises two symmetrically arranged vertical plates; the vertical plate is arranged perpendicular to the axial direction of the flange protruding rectangular tube, and is provided with a through hole A; the extension plate is symmetrically arranged at the end of the rectangular tube, and is provided with a through hole B matching the through hole A; the stud bolt passes through the through hole A and the through hole B, so that the flange protruding rectangular tube and the rectangular tube are in a hinged relationship; the end of the stud bolt cooperates with the mounting nut thread, so that the stud bolt is axially limited, and it is ensured that the stud bolt will not fall out of the through hole A and the through hole B; there is only one stud bolt, and its shear strength is sufficient to meet the connection strength between the flange protruding rectangular tube and the rectangular tube.

[0005] Preferably, the flange extending rectangular tube includes a web and a wing plate; the vertical plate includes a trapezoidal plate and a rectangular plate; three sides of the rectangular plate are welded to the web and the wing plate to improve the connection strength between the vertical plate and the flange extending rectangular tube; the other side of the rectangular plate is connected to the bottom side of the trapezoidal plate to connect the rectangular plate and the trapezoidal plate into one; through hole A is arranged on the trapezoidal plate for connecting the rectangular tube; and the extension plates are symmetrically arranged on both sides of the vertical plate for easy connection.

[0006] Furthermore, a gap is left between the extension plate and the vertical plate to facilitate the connection between the flange-extending rectangular tubes and the rectangular tubes.

[0007] Furthermore, the large bottom edge of the trapezoidal plate is connected to the rectangular plate, so that the through hole B is located at the small end of the connecting seat, which facilitates the connection between the rectangular tube with the flange extending outward and the rectangular tube.

[0008] Furthermore, the hinged connection structure between the flange extending rectangular tube and the rectangular tube also includes a sealing plate; the sealing plate is connected to the bottom end of the extension plate; the sealing plate vertically limits the vertical plate; after the rectangular tube is lifted, the connecting seat is inserted between the extension plates; the sealing plate can block the connecting seat and limit the connecting seat between the extension plates for easy installation.

[0009] Preferably, the connecting seat also includes a horizontal plate; the horizontal plate is symmetrically arranged above and below the stud bolts; the horizontal plate can enhance the structural strength of the connecting seat.

[0010] Preferably, a blocking plate is provided at the end of the rectangular tube; the blocking plate can strengthen the structural strength of the rectangular tube.

[0011] Furthermore, the four sides of the blocking plate are connected to the inner wall of the rectangular tube, thereby increasing the connection strength between the blocking plate and the rectangular tube.

[0012] Preferably, the hinged connection structure between the flange extending rectangular tube and the rectangular tube also includes a flat washer and a spring washer; the stud bolt passes through the flat washer and the spring washer; and the spring washer is arranged between the mounting nut and the flat washer.

[0013] The beneficial effects of the utility model are as follows: the hinged connection structure of the flange-extending rectangular tube and the rectangular tube of the utility model has the following advantages:

[0014] (1) The utility model only uses a large-diameter stud bolt to make the flange-extending rectangular tube and the rectangular tube in a hinged connection relationship, which can reduce the difficulty of connecting the flange-extending rectangular tube and the rectangular tube, avoid on-site repair, ensure the construction period, and reduce construction costs;

[0015] (2) The utility model limits the vertical position of the vertical plate; after the rectangular tube is lifted, the connecting seat is inserted between the extension plates; the sealing plate can block the connecting seat and limit the connecting seat between the extension plates, which is convenient for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a structural schematic diagram of the hinged connection structure of the flange-extending rectangular tube and the rectangular tube of the utility model;

[0017] Figure 2 yes Figure 1 The main view;

[0018] Figure 3 yes Figure 2 AA section view;

[0019] Figure 4 yes Figure 2 BB cross-sectional view;

[0020] Figure 5 yes Figure 3 CC section view;

[0021] In the figure: 01. flange extended rectangular tube, 011. web plate, 012. wing plate, 02. rectangular tube, 021. blocking plate, 1. connecting seat, 11. vertical plate, 111. through hole A, 112. trapezoidal plate, 113. rectangular plate, 12. horizontal plate, 2. extension plate, 21. through hole B, 3. stud bolt, 4. mounting nut, 5. gap, 6. clearance, 7. sealing plate, 8. flat washer, 9. spring washer. DETAILED DESCRIPTION

[0022] Example 1: See Figure 1-5 , a hinged connection structure of a flange protruding rectangular tube and a rectangular tube, comprising a connecting seat 1, two extension plates 2, a large-diameter stud bolt 3, and two mounting nuts 4; the connecting seat 1 is arranged on the belly of the flange protruding rectangular tube 01, and comprises two symmetrically arranged vertical plates 11; the vertical plate 11 is arranged perpendicular to the axial direction of the flange protruding rectangular tube 01, and is provided with a through hole A 111; the extension plate 2 is symmetrically arranged at the end of the rectangular tube 02, and is provided with a through hole B 21 matching the through hole A 111; the stud bolt 3 passes through the through hole A 111 and the through hole B 21, so that the flange protruding rectangular tube 01 and the rectangular tube 02 are in a hinged relationship; the end of the stud bolt 3 is threadedly matched with the mounting nut 4, so that the stud bolt 3 is axially limited to ensure that the stud bolt 3 will not fall out of the through hole A 111 and the through hole B 21; there is only one stud bolt 3, and its shear strength is sufficient to meet the connection strength between the flange protruding rectangular tube 01 and the rectangular tube 02.

[0023] Compared with the prior art, the utility model only uses a large-diameter stud bolt 3 to make the flange-extending rectangular tube 01 and the rectangular tube 02 in a hinged connection relationship, which can reduce the difficulty of connecting the flange-extending rectangular tube 01 and the rectangular tube 02, avoid on-site repair, ensure construction period, and reduce construction costs.

[0024] The flange extended rectangular tube 01 includes a web 011 and a wing plate 012; the vertical plate 11 includes a trapezoidal plate 112 and a rectangular plate 113; the three sides of the rectangular plate 113 are welded to the web 011 and the wing plate 012 to improve the connection strength between the vertical plate 11 and the flange extended rectangular tube 01; the other side of the rectangular plate 113 is connected to the bottom side of the trapezoidal plate 112, so that the rectangular plate 113 and the trapezoidal plate 112 are connected as a whole; the through hole A 111 is arranged on the trapezoidal plate 112 for connecting the rectangular tube 02; the extension plate 2 is symmetrically arranged on both sides of the vertical plate 11 for easy connection.

[0025] A gap 5 is left between the extension plate 2 and the vertical plate 11 to facilitate the connection between the rectangular tube 01 with the flange extending outward and the rectangular tube 02 .

[0026] A gap 6 is left between the end surface of the extension plate 2 and the end surface of the wing plate 012 to facilitate installation.

[0027] The large bottom side of the trapezoidal plate 112 is connected to the rectangular plate 113 , so that the through hole B 21 is located at the small end of the connecting seat 1 , which facilitates the connection between the flange-extending rectangular tube 01 and the rectangular tube 02 .

[0028] The hinged connection structure between the flange extending rectangular tube and the rectangular tube also includes a sealing plate 7; the sealing plate 7 is connected to the bottom end of the extension plate 2; the sealing plate 7 vertically limits the vertical plate 11; after the rectangular tube 02 is lifted, the connecting seat 1 is inserted between the extension plates 2; the sealing plate 7 can block the connecting seat 1 and limit the connecting seat 1 between the extension plates 2 for easy installation.

[0029] The connecting seat 1 further comprises a horizontal plate 12 ; the horizontal plate 12 is symmetrically arranged above and below the stud bolts 3 ; the horizontal plate 12 can enhance the structural strength of the connecting seat 1 .

[0030] A plugging plate 021 is provided at the end of the rectangular tube 02 ; the plugging plate 021 can enhance the structural strength of the rectangular tube 02 .

[0031] Working principle of this embodiment: The utility model only uses a large-diameter stud bolt 3 to make the flange-extending rectangular tube 01 and the rectangular tube 02 in a hinged connection relationship, which can reduce the difficulty of connecting the flange-extending rectangular tube 01 and the rectangular tube 02, avoid on-site repair, ensure the construction period, and reduce construction costs. Through hole B 21 is located at the small end of the connecting seat 1, which is convenient for the flange-extending rectangular tube 01 to connect with the rectangular tube 02; the sealing plate 7 vertically limits the vertical plate 11; after the rectangular tube 02 is lifted, the connecting seat 1 is inserted between the extension plates 2; the sealing plate 7 can block the connecting seat 1 and limit the connecting seat 1 between the extension plates 2, which is convenient for installation.

[0032] Embodiment 2: Embodiment 2 is basically the same as Embodiment 1, and the similarities are not repeated here. The difference is that the four sides of the blocking plate 021 are connected to the inner wall of the rectangular tube 02, thereby increasing the connection strength between the blocking plate 021 and the rectangular tube 02.

[0033] The blocking plate 021 is embedded in the rectangular tube 02; before the through hole A 111 and the through hole B 21 are aligned, the connecting seat 1 can be slightly inserted into the rectangular tube 02 to obtain a certain limit, thereby reducing the adjustment amount of the rectangular tube 02 when the through hole A 111 and the through hole B 21 are adjusted.

[0034] The hinged connection structure between the flange extended rectangular tube and the rectangular tube also includes a flat washer 8 and a spring washer 9 ; the stud bolt 3 passes through the flat washer 8 and the spring washer 9 ; and the spring washer 9 is arranged between the mounting nut 4 and the flat washer 8 .

Claims

1. A hinged connection structure of a flange-extending rectangular tube and a rectangular tube, characterized in that: It includes a connecting seat, two extension plates, a large-diameter stud bolt, and two mounting nuts; the connecting seat is arranged on the belly of the flange-extending rectangular tube, and includes two symmetrically arranged vertical plates; the vertical plates are arranged perpendicular to the axial direction of the flange-extending rectangular tube and are provided with through holes A; the extension plates are symmetrically arranged at the ends of the rectangular tube and are provided with through holes B matching with through holes A; the stud bolts pass through through holes A and through holes B; the ends of the stud bolts are threadedly matched with the mounting nut.

2. The hinged connection structure of the flange-extending rectangular tube and the rectangular tube according to claim 1 is characterized in that: The flange extended rectangular tube includes a web plate and a wing plate; the vertical plate includes a trapezoidal plate and a rectangular plate; three sides of the rectangular plate are welded to the web plate and the wing plate; the other side of the rectangular plate is connected to the bottom side of the trapezoidal plate; the through hole A is arranged on the trapezoidal plate; and the extension plates are symmetrically arranged on both sides of the vertical plate.

3. The hinged connection structure of the flange-extending rectangular tube and the rectangular tube according to claim 2 is characterized in that: The large bottom side of the trapezoidal plate is connected to the rectangular plate.

4. The hinged connection structure of the flange-extending rectangular tube and the rectangular tube according to claim 2 is characterized in that: It also includes a sealing plate; the sealing plate is connected to the bottom end of the extension plate.

5. The hinged connection structure of the flange-extending rectangular tube and the rectangular tube according to claim 1 is characterized in that: The connecting seat also includes a horizontal plate; the horizontal plate is symmetrically arranged above and below the stud bolts.

6. The hinged connection structure of the flange-extending rectangular tube and the rectangular tube according to claim 1 is characterized in that: A blocking plate is provided at the end of the rectangular tube.

7. The hinged connection structure of the flange-extending rectangular tube and the rectangular tube according to claim 6 is characterized in that: The four sides of the blocking plate are connected to the inner wall of the rectangular tube.

8. The hinged connection structure of the flange-extending rectangular tube and the rectangular tube according to claim 1 is characterized in that: It also includes a flat washer and a spring washer; the stud bolt passes through the flat washer and the spring washer; and the spring washer is arranged between the mounting nut and the flat washer.

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