Joist and tube truss connection device

Abstract

The utility model provides a joist and pipe truss connecting device, including lower connecting piece, upper connecting piece and embracing piece, the lower part of lower connecting piece is provided with bolt, and the bolt runs through the lower part of upper connecting piece, the upper end cover of upper connecting piece is provided with embracing piece, and the circular through -hole of reserving between upper connecting piece and embracing piece, the lower connecting piece includes two first vertical boards of vertical settings, the side wall fixedly connected with first side ear of first vertical board, the upper connecting piece includes two second vertical boards of vertical settings, the side wall fixedly connected with the rib plate of second vertical board, the second bolt is threadedly connected on first side ear, and the end part of second bolt bears against the rib plate. The utility model, lower connecting piece, upper connecting piece rotation connection, the erection of pipe truss is convenient, and the structure such as second bolt, rib plate set up again, can improve the stability of support.

Description

Technical Field

[0001] This utility model relates to the field of tubular truss support technology, and in particular to a connection device between a support beam and a tubular truss. Background Technology

[0002] A tubular truss is a lattice structure composed of circular tubular members connected at the ends by welding or bolting. It is a type of spatial grid structure, primarily used in large-span public buildings such as stadiums, convention centers, high-speed rail platforms, and industrial plants. This structure uses steel tubing as its main material, with the member cross-sections evenly distributed around a neutral axis. It possesses strong resistance to compression, bending, and torsion, and can be designed in various forms, including simply supported trusses, arches, or frames.

[0003] When supporting and fixing tubular trusses, they are erected on supporting structures such as beams using connectors. Most existing connectors consist of two parts: one welded to the tubular truss and the other welded to the supporting structure. The tubular truss is then moved by hoisting, and the two parts of the connector are then fixed together using bolts or welding. Due to the large size of the tubular truss structure, hoisting makes fitting the two parts of the connector together difficult, and also requires high precision in the welding positions, resulting in relatively low construction efficiency. Utility Model Content

[0004] To address the aforementioned problems, this utility model discloses a connection device between a support beam and a tubular truss, comprising a lower connector, an upper connector, and a retaining member. A pin protrudes from the lower part of the lower connector and passes through the lower part of the upper connector. The retaining member covers the upper end of the upper connector, and a circular through hole is provided between the upper connector and the retaining member. In use, the lower connector is fixed to the upper end of the support beam, while the circular through hole retains the tubular truss fittings.

[0005] The lower connector includes two vertically arranged first vertical plates, each with a first side lug fixedly connected to its side wall. The upper connector includes two vertically arranged second vertical plates, each with a rib fixedly connected to its side wall. A second bolt is threaded onto each of the first side lugs, with the end of the second bolt abutting against the rib. During installation, the upper and lower connectors are rotatably connected together via pins, facilitating the erection of the tubular truss on the upper connector. A clamping member is then used for fixation. After erection, rotating the second bolt causes it to abut against the rib, thus restricting rotation between the upper and lower connectors and achieving fixed support for the tubular truss.

[0006] Preferably, the lower sidewall of the first vertical plate is provided with a connecting hole, and the lower end of the second vertical plate is fixedly connected to a sleeve. The pin protrudes from the connecting hole and the sleeve, and a first bolt is threaded to one end of the pin's sidewall. The first bolt is provided to prevent the pin from being pulled out of the connecting hole and the sleeve.

[0007] Preferably, a base plate is fixedly connected to the lower end of the first vertical plate, and a first hole is provided at each of the four corners of the base plate. A screw is pre-embedded on the support beam, and the screw passes through the first hole, and a nut is used to fix the device to the support beam.

[0008] Preferably, a connecting plate is fixedly connected to the upper end of the second vertical plate, and a first mating component is fixedly connected to the upper end of the connecting plate. The clamping component includes a second mating component, and the first and second mating components have the same structure, both including square steel and an internally arranged cross plate. The first and second mating components are used to clamp the tubular truss.

[0009] Preferably, the upper sidewall of the first mating component is fixedly connected to a second side lug, which has a second hole. The lower sidewall of the second mating component has a third side lug, which has a third hole. A third bolt is inserted through the upper and lower holes of the second and third components. The nut is then used to secure the component.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. This device can be pre-installed on the fixed support beam, and then the tubular truss can be hoisted and erected on it, specifically in the semi-circular groove at the upper end of the first mating part, and then fixed with the clamping part. During the process, the lower connecting part and the upper connecting part are rotated to facilitate the angle adjustment of the upper connecting part during the erection process.

[0012] 2. The device is equipped with a first side lug, a second bolt, and a rib plate. After the attitude of the tubular truss and the device is determined, the second bolt is rotated to abut against the rib plate, which restricts the rotation between the lower and upper connecting parts and ensures the stability of the device support. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the lower connecting member of this utility model;

[0015] Figure 3 This is an upright schematic diagram of the upper connecting member of this utility model;

[0016] Figure 4 This is an inverted schematic diagram of the upper connecting member of this utility model;

[0017] Figure 5 This is a three-dimensional schematic diagram of the clamping component of this utility model.

[0018] List of reference numerals in the attached diagram:

[0019] 1. Lower connector; 2. Pin; 3. First bolt; 4. Second bolt; 5. Upper connector; 6. Third bolt; 7. Clamping component;

[0020] 11. Base plate; 12. First vertical plate; 13. First side lug; 14. Connecting hole; 15. First hole; 51. Sleeve; 52. Second vertical plate; 53. Rib plate; 54. Connecting plate; 55. First mating part; 56. Second side lug; 57. Second hole; 71. Second mating part; 72. Third side lug; 73. Third hole. Detailed Implementation

[0021] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0022] like Figures 1 to 5 As shown, the connection device between the support beam and the tubular truss includes a lower connector 1, an upper connector 5, and a clamping member 7. A pin 2 is provided through the lower part of the lower connector 1, and the pin 2 passes through the lower part of the upper connector 5. That is, the lower connector 1 and the upper connector 5 are rotatably connected together by the pin 2. This rotatable connection method makes it easy to erect the tubular truss on the upper connector 5 during the construction of the tubular truss. The upper end of the upper connector 5 is covered by the clamping member 7, and a circular through hole is reserved between the upper connector 5 and the clamping member 7. When the tubular truss is placed on the upper connector 5, the clamping member 7 is fixed on the upper connector 5, realizing the fixed connection between the device and the tubular truss.

[0023] The lower connector 1 includes two vertically arranged first vertical plates 12. The side walls of the first vertical plates 12 are fixedly connected to first side ears 13. The first side ears 13 and the first vertical plates 12 are connected together by welding, and the two first vertical plates 12 are in a mirror structure. The upper connector 5 includes two vertically arranged second vertical plates 52. The side walls of the second vertical plates 52 are fixedly connected to ribs 53. Similarly, the two second vertical plates 52 are also placed in a mirror manner. When the lower connector 1 and the upper connector 5 are connected, the two second vertical plates 52 are located between the two first vertical plates 12. The first side ears 13 are threaded with second bolts 4. The end of the second bolts 4 abuts against the ribs 53. The ribs 53 improve the structural strength. After the truss is erected, the second bolts 4 can be rotated so that the end of the second bolts 4 abuts against the ribs 53, thereby restricting the mutual rotation between the lower connector 1 and the upper connector 5, thereby improving the stability of the device support.

[0024] The lower side wall of the first vertical plate 12 is provided with a connecting hole 14. A pipe fitting is also welded to one side of the connecting hole 14 to increase the contact area between it and the pin 2. The lower end of the second vertical plate 52 is fixedly connected with a sleeve 51. The sleeve 51 and the connecting hole 14 are arranged coaxially. The pin 2 passes through the connecting hole 14 and the sleeve 51. The connecting hole 14 and the sleeve 51 provide a space for the pin 2 to pass through. One end of the side wall of the pin 2 is threaded with a first bolt 3. It should be noted that the diameter of one end of the pin 2 is too large to pass through the connecting hole 14. The other end of the side wall of the pin 2 is provided with a threaded hole, and the first bolt 3 fits in the threaded hole. The purpose of setting the first bolt 3 is to prevent the pin 2 from slipping out of the connecting hole 14 and the sleeve 51. Therefore, setting the first bolt 3 improves the stability of the device support.

[0025] The lower end of the first vertical plate 12 is fixedly connected to a base plate 11. The base plate 11 is a square steel plate with chamfered corners. Each of the four corners of the base plate 11 has a first hole 15. A screw is pre-embedded in the support beam here. When the device is installed, the screw passes through the first hole 15 and works with the nut to fix the device to the support beam.

[0026] A connecting plate 54 is fixedly connected to the upper end of the second vertical plate 52. The connecting plate 54 and the bottom plate 11 have the same outline. The upper end of the connecting plate 54 is fixedly connected to the first mating member 55. The clamping member 7 includes a second mating member 71. The first mating member 55 and the second mating member 71 have the same structure, both including square steel and an internal cross plate. The arrangement of the square steel and the cross plate ensures the structural strength of the first mating member 55 and the second mating member 71, and meets the needs of connection support.

[0027] The upper side wall of the first mating part 55 is fixedly connected to a second side ear 56, and a second hole 57 is provided on the second side ear 56. The lower side wall of the second mating part 71 is provided with a third side ear 72. The structural outlines of the second side ear 56 and the third side ear 72 are the same. A third hole 73 is provided on the third side ear 72. A third bolt 6 is provided through the upper and lower second holes 57 and third holes 73. After the first mating part 55 and the second mating part 71 are mated, the middle part is a circular through hole. After the tubular truss is erected between the first mating part 55 and the second mating part 71, the third bolt 6 and the nut are used to clamp and fix the tubular truss.

[0028] The technical means disclosed in this utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A connection device between a beam and a tubular truss, characterized in that, It includes a lower connector (1), an upper connector (5) and a retaining member (7). The lower part of the lower connector (1) is provided with a pin (2) extending through it, and the pin (2) passes through the lower part of the upper connector (5). The upper end of the upper connector (5) is covered by the retaining member (7), and a circular through hole is reserved between the upper connector (5) and the retaining member (7). The lower connector (1) includes two vertically arranged first vertical plates (12), and a first side ear (13) is fixedly connected to the side wall of the first vertical plate (12). The upper connector (5) includes two vertically arranged second vertical plates (52), and a rib plate (53) is fixedly connected to the side wall of the second vertical plate (52). A second bolt (4) is threaded onto the first side ear (13), and the end of the second bolt (4) abuts against the rib plate (53).

2. The beam-to-truss connection device according to claim 1, characterized in that: The lower side wall of the first vertical plate (12) is provided with a connecting hole (14), and the lower end of the second vertical plate (52) is fixedly connected with a sleeve (51). The pin (2) passes through the connecting hole (14) and the sleeve (51), and a first bolt (3) is threadedly connected to one end of the pin (2).

3. The beam-to-truss connection device according to claim 1, characterized in that: The bottom end of the first vertical plate (12) is fixedly connected to a base plate (11), and the four corners of the base plate (11) are provided with first holes (15).

4. The beam-to-truss connection device according to claim 1, characterized in that: The upper end of the second vertical plate (52) is fixedly connected to a connecting plate (54), and the upper end of the connecting plate (54) is fixedly connected to a first mating member (55). The clamping member (7) includes a second mating member (71), and the first mating member (55) and the second mating member (71) have the same structure, both including square steel and a cross plate set inside.

5. The beam-to-truss connection device according to claim 4, characterized in that: The upper side wall of the first mating part (55) is fixedly connected to a second side ear (56), and a second hole (57) is provided on the second side ear (56). The lower side wall of the second mating part (71) is provided with a third side ear (72), and a third hole (73) is provided on the third side ear (72). A third bolt (6) is provided through the upper and lower second hole (57) and the third hole (73).

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