Connecting piece for cantilever beam and hanger rail of circular rail type hoisting equipment

Abstract

The utility model discloses a connecting piece for a cantilever beam and a hanger rail of circular rail type hoisting equipment. The connecting piece comprises an upper steel plate and a lower steel plate, two symmetrical L-shaped upper buckling strips are welded on the upper surface of the upper steel plate, the two L-shaped upper buckling strips and the upper steel plate form a C-shaped upper buckling piece, and the C-shaped upper buckling piece sleeves and hooks a lower flange plate of the cantilever beam; two symmetrical L-shaped lower buckling strips are welded on the lower surface of the lower steel plate, the two L-shaped lower buckling strips and the lower steel plate form a C-shaped lower buckling piece, and the C-shaped lower buckling piece sleeves and hooks an upper flange plate of the I-shaped steel hanger rail; an upper center hole penetrates through the upper steel plate, and an upper end plate is arranged between the upper steel plate and a lower flange plate of the cantilever beam; a lower center hole penetrates through the lower steel plate; a lower end plate is arranged between the lower steel plate and the upper flange plate of the I-shaped steel hanger rail; the upper center hole and the lower center hole are jointly sleeved with a rotating shaft in a clearance mode, and the two ends of the rotating shaft are welded to the upper end plate and the lower end plate respectively. The connecting piece can be used for connecting the cantilever beam and the I-shaped steel hanger rail at any angle.

Description

Technical Field

[0001] This utility model relates to the field of high-rise building facade construction technology, specifically to a connecting component between the cantilever beam and the hoisting rail of a ring-rail hoisting device used for constructing the curtain wall facade of a high-rise building. Background Technology

[0002] After the main structure of a high-rise building is completed, curtain walls are generally installed using hoisting equipment with a ring rail. The general procedure is as follows: using a floor slab on a high floor as the base layer, an I-beam perpendicular to the edge of the floor slab is anchored at regular intervals on the base layer as cantilever beams, thus creating a ring of cantilever beams around the base layer floor slab. Then, an I-beam hoisting rail, perpendicular to each cantilever beam, is fixed to each cantilever beam, and all the I-beam hoisting rails are connected end-to-end to form a ring rail, or ring rail, encircling the base layer floor slab. The ring rail consists of straight and curved sections; the curved sections are located outside the corners of the floor slab, while the straight sections are parallel to the straight edges of the floor slab. A trolley slides along the circular track, and a winch is mounted on the trolley. The winch's traction rope has a lifting device at the lower end for hoisting curtain wall panels such as glass and aluminum panels. To ensure stability, multiple upper hanging ring assemblies are pre-embedded in the floor slab above. These upper hanging ring assemblies correspond one-to-one with the cantilever beams, and each upper hanging ring assembly is reinforced to the outer end of its corresponding cantilever beam with a tie rod. At this point, the installation of the hoisting equipment for the foundation layer is complete. Then, the curtain wall panels are hoisted layer by layer from bottom to top. The trolley is driven to travel one revolution along the circular track to hoist all the curtain wall panels of the nth layer into place. Then the trolley is driven to travel another revolution to hoist all the curtain wall panels of the (n+1)th layer, and so on…

[0003] This application pertains to the connectors used in the aforementioned hoisting equipment to connect the I-beam cantilever beams to the corresponding I-beam rails. Previously, workers did not use connectors; instead, they directly welded each I-beam rail to the corresponding cantilever beam, then cut the welds open with an oxy-acetylene torch after hoisting. However, this method was cumbersome, involved a large amount of work in high-altitude welding and cutting, posed certain dangers, and caused permanent weld or cut damage to the cantilever beams and rails, rendering them unusable.

[0004] Therefore, an improved scheme using bolted connectors has been proposed, which includes an upper steel plate and a lower steel plate; two symmetrical L-shaped upper fasteners are welded to the upper surface of the upper steel plate, and the two L-shaped upper fasteners and the upper steel plate form a C-shaped upper fastener, which hooks and holds the lower flange plate of the cantilever beam; two symmetrical L-shaped lower fasteners are welded to the lower surface of the lower steel plate, and the two L-shaped lower fasteners and the lower steel plate form a C-shaped lower fastener, which hooks and holds the upper flange plate of the I-beam suspension rail; four upper through holes are provided at the four corners of the upper steel plate, and four lower through holes are provided at the four corners of the lower steel plate; the upper steel plate and the lower steel plate are connected by four bolts, with each bolt passing through the upper and lower through holes at the corresponding corners.

[0005] The aforementioned bolt-type connector allows for the connection or disassembly of cantilever beams and I-beam suspension rails simply by tightening or loosening the bolts, eliminating the need for high-altitude welding or cutting, making the operation quick, convenient, and safe. However, this connector has a limitation: it can only connect cantilever beams and I-beam suspension rails that are perpendicular to each other. According to safety regulations, a cantilever beam must be installed at regular intervals, such as 1.5 meters, along the ring rail for support. However, in actual construction sites, the installation points of the cantilever beams often encounter shear walls or columns that obstruct the view. This obstruction results in insufficient anchorage length for the cantilever beams, making them unable to provide secure support. Therefore, the cantilever beams must be slightly tilted to bypass these obstacles and ensure sufficient anchorage length. However, this results in the cantilever beam not being perpendicular to the corresponding I-beam suspension rail, making it impossible for the bolt-type connector to connect the cantilever beam and I-beam suspension rail at that point. Furthermore, the curved section of the ring track located outside the floor corner is constructed by welding together multiple short, straight suspension rail segments. For example, a 90-degree curved segment can be formed by welding six short, straight suspension rail segments sequentially, each segment bent at a 15-degree angle. The cantilever beam of this curved segment will certainly not be perpendicular to its corresponding suspension rail segment. Therefore, bolted connectors are clearly insufficient to connect the cantilever beam of the curved segment to its corresponding suspension rail segment. In conclusion, existing connectors cannot meet the requirements for cantilever beams in areas obscured by walls and columns, and for curved sections where the ring track is installed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a connecting component for the cantilever beam and the rail of a ring-rail hoisting device that can connect the cantilever beam and the I-beam rail at any angle.

[0007] The technical solution of this utility model is to provide a connecting component between the cantilever beam and the rail of a ring-rail hoisting equipment. It includes an upper steel plate and a lower steel plate. Two symmetrical L-shaped upper fasteners are welded to the upper surface of the upper steel plate, forming a C-shaped upper fastener with the upper steel plate. The C-shaped upper fastener is hooked onto the lower flange plate of the cantilever beam. Two symmetrical L-shaped lower fasteners are welded to the lower surface of the lower steel plate, forming a C-shaped lower fastener with the lower steel plate. The C-shaped lower fastener is hooked onto the upper flange plate of the I-beam rail. The upper steel plate has a through-hole, and an upper end plate is provided between the upper steel plate and the lower flange plate of the cantilever beam. The lower steel plate has a through-hole, and a lower end plate is provided between the lower steel plate and the upper flange plate of the I-beam rail. A rotating shaft is fitted between the upper and lower center holes with a common gap, and both ends of the rotating shaft are welded to the upper and lower end plates, respectively.

[0008] Compared with existing technologies, the connecting parts between the cantilever beam and the hoisting rail of the above-mentioned ring-rail hoisting equipment have the following advantages.

[0009] The assembly and disassembly of this connector are both convenient and quick. Assembly is completed simply by fitting the lower fastener onto the upper flange of the I-beam suspension rail and then fitting the upper fastener onto the lower flange of the cantilever beam. Conversely, disassembly is completed by simply pulling the I-beam suspension rail outward to detach the upper fastener from the lower flange of the cantilever beam. Compared to existing technologies that require tightening and loosening four bolts or welding and gas cutting, the operation of this connector is significantly faster, more efficient, labor-saving, and safer. Moreover, and more importantly, the upper and lower fasteners of this connector can rotate relative to each other, which overcomes the bottleneck of existing technologies that can only connect vertical components. Regardless of the angle between the cantilever beam and the corresponding I-beam suspension rail, a secure connection can be maintained. Therefore, it solves the need for cantilever beams to be installed in areas obstructed by walls and columns and in curved sections.

[0010] Preferably, the connector further includes a first locking assembly, which includes a U-shaped steel plate for simultaneously locking the upper and lower steel plates. A clamping bolt is located near the bend of the U-shaped steel plate. Tightening the clamping bolt causes the upper and lower steel bars of the U-shaped steel plate to clamp the upper and lower steel plates. Thus, when the connector connects the cantilever beam and the corresponding I-beam rail, the shaft and the upper and lower steel plates are in a clearance fit, causing some wobbling. This wobbling is exacerbated, especially when the hoisting trolley passes by. Therefore, a first locking assembly is specifically added between the upper and lower steel plates. The U-shaped steel plate locks the upper and lower steel plates, and tightening the clamping bolt causes the U-shaped steel plate to clamp the upper and lower steel plates, thereby locking them and preventing rotation, thus improving the stability of the hoisting trolley running on the ring track.

[0011] As a further preferred option, the first locking assembly consists of two sets, which are diagonally distributed. In this way, the two sets of fasteners are located at the southeast and northwest corners, or the northeast and southwest corners, of the upper and lower steel plates, respectively. This layout is reasonable, saves materials, and achieves the best locking effect with the fewest number of components.

[0012] As another preferred embodiment, the connector also includes a second locking assembly. The second locking assembly includes a U-shaped steel plate for simultaneously locking the upper and lower steel plates. The front end of the lower steel bar of the U-shaped steel plate is wedge-shaped, and the wedge-shaped part of the lower steel bar is squeezed into the gap between the C-shaped lower fastener and the upper flange plate of the I-beam suspension rail. A nut is welded to the steel bar on the U-shaped steel plate, and a pressing bolt is screwed into the nut. The thread of the pressing bolt passes through the through hole of the upper steel bar and abuts against the upper steel plate. In this way, the assembly of this locking assembly is more convenient and quick. It is only necessary to squeeze the wedge-shaped part of the lower steel bar into the gap between the C-shaped lower fastener and the upper flange plate of the I-beam suspension rail, and then tighten the pressing bolt to abut against the upper steel plate. Moreover, the locking effect of this locking assembly on the upper and lower steel plates is firm and reliable, preventing the upper and lower steel plates from rotating relative to each other and ensuring the smooth operation of the trolley on the ring track.

[0013] As a further preferred option, the second locking assembly consists of two sets, located on the left and right sides of the C-shaped lower fastener respectively; in this way, the two sets of fasteners are subjected to balanced force and are securely locked. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the connection between the cantilever beam and the suspension rail of a ring-rail hoisting equipment.

[0015] Figure 2 This is a structural schematic diagram of Embodiment 1 of the connector of this utility model.

[0016] Figure 3 yes Figure 2 A schematic diagram of the structure after being deflected at a certain angle.

[0017] Figure 4 This is an exploded view of Embodiment 1 of the connector of this utility model.

[0018] Figure 5 This is a partial cross-sectional structural diagram of the cantilever beam and the hanging rail in Embodiment 1 of the connector of this utility model.

[0019] Figure 6 This is a structural schematic diagram of embodiment 2 of the connector of this utility model.

[0020] Figure 7 This is an exploded view of embodiment 2 of the connector of this utility model.

[0021] The diagram shows: 1. Upper steel plate, 2. Lower steel plate, 3. L-shaped upper fastener, 4. Cantilever beam, 5. L-shaped lower fastener, 6. I-beam hanging rail, 7. Upper end plate, 8. Lower end plate, 9. Rotating shaft, 10. Clamping bolt, 11. U-shaped steel plate, 11.1. Wedge-shaped part, 12. Shear wall, 13. Nut, 14. Lower pressing bolt. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1-7 As shown, the connecting component between the cantilever beam and the rail of the ring-rail hoisting equipment of this utility model includes an upper steel plate 1 and a lower steel plate 2. Two symmetrical L-shaped upper fasteners 3 are welded to the upper surface of the upper steel plate 1. The two L-shaped upper fasteners 3 and the upper steel plate 1 form a C-shaped upper fastener, which hooks and holds the lower flange plate of the cantilever beam 4. Two symmetrical L-shaped lower fasteners 5 are welded to the lower surface of the lower steel plate 2. The two L-shaped lower fasteners 5 and the lower steel plate 2 form a C-shaped lower fastener, which hooks and holds the upper flange plate of the I-beam rail 6.

[0024] The upper steel plate 1 has a through upper center hole, and an upper end plate 7 is provided between the upper steel plate 1 and the lower flange plate of the cantilever beam 4. The lower steel plate 2 has a through lower center hole, and a lower end plate 8 is provided between the lower steel plate 2 and the upper flange plate of the I-beam suspension rail 6. A rotating shaft 9 is fitted together with the upper and lower center holes with a gap, and the two ends of the rotating shaft 9 are welded to the upper end plate 7 and the lower end plate 8 respectively.

[0025] Embodiment 1 of this application includes a first locking assembly, which consists of two sets, diagonally distributed. In this embodiment, the locking assemblies are located at the southeast and northwest corners of the upper steel plate 1. Of course, they can also be located at the northeast and southwest corners of the upper steel plate 1. Furthermore, four sets of locking assemblies can be provided, one set at each of the four corners.

[0026] The first locking assembly includes a U-shaped steel plate 11 for simultaneously locking the upper steel plate 1 and the lower steel plate 2. A clamping bolt 10 is located near the bent portion of the U-shaped steel plate 11. By tightening the clamping bolt 10, the upper and lower steel bars of the U-shaped steel plate 11 can be clamped to the upper steel plate 1 and the lower steel plate 2, respectively. "Near" refers to a distance of 2 to 5 cm from the bent portion of the U-shaped steel plate 11. In this embodiment, both the upper end plate 7 and the lower end plate 8 are square steel plates.

[0027] In Embodiment 2 of this application, a second locking assembly is employed. This second locking assembly also includes a U-shaped steel plate 11 for simultaneously locking the upper and lower steel plates. The lower steel bar of the U-shaped steel plate 11 has a wedge-shaped front end, and the wedge-shaped portion 11.1 of the lower steel bar is pressed tightly into the gap between the C-shaped lower fastener and the upper flange plate of the I-beam rail 6. A nut 13 is welded to the upper steel bar of the U-shaped steel plate 11, and a pressing bolt 14 is screwed onto the nut 13. The bolt of the pressing bolt 14 passes through the through hole of the upper steel bar and abuts against the upper steel plate 1. There are two sets of the second locking assembly, located on the left and right sides of the C-shaped lower fastener, respectively. In this embodiment, both the upper end plate 7 and the lower end plate 8 are round steel plates.

[0028] This connector enables the connection between the cantilever beam 4 and the I-beam suspension rail 6 at any angle, making it particularly suitable for... Figure 1 The ring track is designed for applications where cantilever beams 4 are installed in areas obstructed by shear walls 12 or columns. It is also suitable for applications where cantilever beams are installed in the curved sections of the ring track.

Claims

1. A connecting component between a cantilever beam and a rail of a ring-rail hoisting equipment, comprising an upper steel plate and a lower steel plate; two symmetrical L-shaped upper fasteners are welded to the upper surface of the upper steel plate, the two L-shaped upper fasteners and the upper steel plate forming a C-shaped upper fastener, the C-shaped upper fasteners being hooked together to attach to the lower flange plate of the cantilever beam; two symmetrical L-shaped lower fasteners are welded to the lower surface of the lower steel plate, the two L-shaped lower fasteners and the lower steel plate forming a C-shaped lower fastener, the C-shaped lower fasteners being hooked together to attach to the upper flange plate of the I-beam rail; characterized in that: The upper steel plate has a through-hole at the top center, and an upper end plate is provided between the upper steel plate and the lower flange plate of the cantilever beam; the lower steel plate has a through-hole at the bottom center, and a lower end plate is provided between the lower steel plate and the upper flange plate of the I-beam suspension rail; a rotating shaft is fitted together with the upper and lower center holes with a common gap, and the two ends of the rotating shaft are welded to the upper end plate and the lower end plate respectively.

2. The connecting component between the cantilever beam and the hoisting rail of the ring-rail type hoisting equipment according to claim 1, characterized in that: It also includes a first locking assembly, which includes a U-shaped steel plate for simultaneously locking the upper and lower steel plates, with clamping bolts near the bend of the U-shaped steel plate; tightening the clamping bolts causes the upper and lower steel bars of the U-shaped steel plate to clamp the upper and lower steel plates.

3. The connecting component between the cantilever beam and the hoisting rail of the ring-rail type hoisting equipment according to claim 2, characterized in that: The first locking assembly consists of two sets, which are diagonally distributed.

4. The connecting component between the cantilever beam and the hoisting rail of the ring-rail type hoisting equipment according to claim 1, characterized in that: It includes a second locking assembly, which includes a U-shaped steel plate for simultaneously locking the upper and lower steel plates. The lower steel bar of the U-shaped steel plate has a wedge-shaped front end, and the wedge-shaped part of the lower steel bar is squeezed into the gap between the C-shaped lower fastener and the upper flange plate of the I-beam suspension rail. The steel bar on the U-shaped steel plate is welded with a nut, and the nut is screwed with a pressing bolt. The screw of the pressing bolt passes through the through hole of the upper steel bar and abuts against the upper steel plate.

5. The connecting component between the cantilever beam and the hoisting rail of the ring-rail type hoisting equipment according to claim 4, characterized in that: The second locking assembly consists of two sets, located on the left and right sides of the C-shaped lower fastener, respectively.

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