Improved node structure for connecting back bolt type curtain wall panel and cross beam

Abstract

The utility model relates to an improved node structure for connecting a back bolt type curtain wall panel and a cross beam, which is characterized in that the cross section of a hanging piece is n-shaped, a back bolt nail cap via hole is formed in the middle of the vertical edge of the left side of the hanging piece, and a back bolt hole coaxial with the back bolt nail cap via hole is formed in the vertical edge of the right side of the hanging piece; the lower end of the vertical edge of the right side of the hanging piece is bent leftwards, a rectangular notch is formed in the bottom of the hanging piece, and an adjusting screw hole is formed in the top of the hanging piece right opposite to the upper portion of the rectangular notch. The vertical edge of the cross beam is arranged between the left vertical edge and the right vertical edge of the hanging piece in a penetrating mode through the rectangular notch, an adjusting screw penetrates through the adjusting screw hole, and a screw head is extruded at the top end of the vertical edge of the cross beam so as to adjust the height of the hanging piece on the cross beam. And a limiting self-tapping screw is tapped between the vertical edge of the cross beam and the vertical edge of the right side of the hanging piece so as to limit the hanging piece to move on the cross beam. The improved joint structure is convenient to install, good in stability and excellent in anti-seismic effect.

Description

Technical Field

[0001] The utility model relates to the field of building curtain walls, in particular to a connection structure between a curtain wall panel and a crossbeam. Background Art

[0002] The building curtain wall is an independent enclosure structure system. The current mainstream construction method is the dry hanging method, which uses metal hangers to hang the curtain wall panels on a metal frame connected to the main structure. In order to improve the convenience of curtain wall panel installation, the usual practice is to fix one part of the metal hanger on the crossbeam of the frame and the other part on the connecting part of the curtain wall panel, and the two parts are connected together by an upper and lower plug-in structure, such as the utility model patent application with announcement number CN 203022169 U, the invention patent application with publication number CN 103452214A and the invention patent application with publication number CN 107447900 A. As can be seen from the technical solutions of the above three patent applications, the common features of the three are: (1) connected together by a groove-type upper and lower plug-in structure, and (2) using screws to adjust the vertical height of the curtain wall panel. Therefore, the following defects are obviously present: first, since the slot opening on the lower hanger is upward and there is no fixed connection mechanism between the upper and lower hangers, the upward motion generated by the seismic wave may cause the curtain wall panel to be thrown out; second, the upper hanger is supported on the lower hanger by a height adjustment screw point, and the deadweight of the curtain wall panel will inevitably generate a horizontal rotation torque around the screw head; in order to eliminate the influence of this torque on stability, two slot-type plug-in structures distributed vertically must be set between the upper and lower hangers, which will obviously affect the convenience of installation.

[0003] The invention patent application with publication number CN 115478639 A discloses a node structure for back-bolted curtain wall panels and crossbeams, the node structure includes a hanger and a seat; the hanger and the seat are provided with a three-dimensional adjustment structure and a wedge-shaped connection structure consisting of a rectangular protrusion, a rectangular groove, a wedge-shaped locking strip, a Π-shaped sleeve, a tubular screw, a locking nut and a locking screw. The node structure can adjust the spatial position of the curtain wall panel, limit the upward motion of the curtain wall panel, and resist the torque generated by the gravity of the curtain wall panel. Its stability and seismic performance are very excellent. However, the node structure has the following deficiencies: (1) The structure for limiting the upward motion caused by seismic waves includes a locking screw, a rectangular groove provided on the vertical side of the beam, and a wedge-shaped locking strip provided in the rectangular groove, and the beam needs to be customized, so the structure is complex and the cost is high; (2) The screw for adjusting the height of the curtain wall panel has to withstand bending moment, thus becoming a weak component of the entire node; (3) The hanger for hanging the curtain wall panel is composed of a Π-shaped sleeve and an L-shaped hanger, which has poor stability. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide an improved node structure for connecting a back-bolt curtain wall panel and a crossbeam, the node structure is not only convenient to install, but also has good stability and excellent earthquake resistance.

[0005] The utility model solves the above technical problems as follows:

[0006] An improved node structure for connecting a back-bolt curtain wall panel and a crossbeam, the node structure comprising a crossbeam with an angular cross section and a hanger connected to the back bolt on the curtain wall panel, characterized in that:

[0007] The cross section of the hanger is Π-shaped, a back bolt cap through hole is provided in the middle of the left vertical side, and a back bolt hole coaxial with the back bolt cap through hole is provided on the right vertical side; the lower end of the right vertical side of the hanger is bent to the left to form a rectangular notch at the bottom of the hanger, and an adjustment screw hole is provided at the top of the hanger just above the rectangular notch;

[0008] The vertical side of the beam is passed through the rectangular notch and arranged between the left and right vertical sides of the hanger. An adjusting screw passes through the adjusting screw hole, and the head of the screw is pressed against the top of the vertical side of the beam to adjust the height of the hanger on the beam.

[0009] A limiting self-tapping screw is driven between the vertical side of the crossbeam and the right vertical side of the hanger to limit the movement of the hanger on the crossbeam.

[0010] It can be seen from the above technical solution that the function of the limit self-tapping screw is to limit the upward and downward movement of the pendant, so the limit self-tapping screw can be inserted from the top or side of the pendant, or even obliquely between the vertical side of the beam and the right vertical side of the pendant. At the same time, the limit self-tapping screw is one or two, preferably two, and is symmetrically arranged with the cross section where the axis of the adjusting screw is located as the center.

[0011] The material of the curtain wall panel in the above technical solution of the present application can be natural stone or artificial board, wherein the artificial board can be a ceramic panel or a cement fiber panel, etc.

[0012] The node structure described in this application has the following beneficial effects compared with the prior art:

[0013] 1. The pendant is an integral structure, and its stability is significantly improved;

[0014] 2. A self-tapping screw is driven into the space between the vertical side of the beam and the right vertical side of the hanger, which not only limits the movement of the hanger on the beam, but also eliminates the matching gap between the hanger and the vertical side of the beam, which is equivalent to the two vertical sides of the Π-shaped hanger being clamped on the vertical side of the beam, significantly improving the seismic effect of the entire curtain wall;

[0015] 3. The node structure is simplified, which greatly reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figures 1 to 4 This is a structural diagram of a specific embodiment of the improved node structure described in this application, wherein: Figure 1 For the main view (along Figure 2 Axial section view of the middle adjusting screw 3), Figure 2 is a top view, Figure 3 is the right view, Figure 4 for Figure 2 A-A section view.

[0017] Figures 5 to 9 for Figures 1 to 4 The structural diagram of the pendant 2 in the embodiment shown is as follows: Figure 5 For the main view (along Figure 6 Section view of the axis 2-6 of the middle adjusting screw hole), Figure 6 is a top view, Figure 7 for Figure 5 The B-B section view, Figure 8 for Figure 6 The C-C section view, Fig. 9 for Figure 6 D-D section view.

[0018] Fig.10 for Figures 1 to 4 The schematic diagram of the assembly structure in which the improved node structure is fixed to the curtain wall panel 6 is shown.

[0019] Figures 11 to 13 This is a structural schematic diagram of another specific embodiment of the improved node structure described in this application, wherein: Fig.11 For the main view (along Fig.12 Sectional view of the axis of the middle adjusting screw 3), Fig.12 is a top view, Fig.13 It is the right view.

[0020] Fig.14 for Figures 11 to 13 The schematic diagram of the assembly structure in which the improved node structure is fixed to the curtain wall panel 6 is shown. Specific embodiments

[0021] Example 1

[0022] See also Figures 1 to 4 The improved node structure described in this example includes a cross beam 1 with an angular cross section and a hanger 2 connected to a back bolt on a curtain wall panel.

[0023] See also Figures 5 to 9The cross section of the hanger 2 is Π-shaped, and a back bolt cap through hole 2-2 is provided in the middle of the left vertical side 2-1, and a back bolt hole 2-4 coaxial with the back bolt cap through hole 2-2 is provided on the right vertical side 2-3; the lower end of the right vertical side 2-3 of the hanger 2 is bent to the left, forming a rectangular notch 2-5 at the bottom of the hanger 2, and an adjusting screw hole 2-6 is provided at the top of the hanger 2 just above the rectangular notch 2-5.

[0024] See also Figures 1 to 9 The vertical side of the beam 1 is passed through the rectangular notch 2-5 between the left and right vertical sides of the hanger 2, and an adjusting screw 3 is passed through the adjusting screw hole 2-6, and the nail head is squeezed at the top of the vertical side of the beam 1 to adjust the height of the hanger 2 on the beam 1; two limiting self-tapping screws 4 are symmetrically arranged on both sides of the adjusting screw 3, and the limiting self-tapping screws 4 are tapped from the top of the hanger 2 to between the vertical side of the beam 1 and the vertical side 2-3 on the right side of the hanger 2 to limit the movement of the hanger 2 on the beam 1.

[0025] See also Figures 5 to 9 In order to facilitate the installation of the limiting self-tapping screw 4, a bottom hole 2-7 for tapping the self-tapping screw is provided at the top of the hanger 2 at the corresponding position of the limiting self-tapping screw 4.

[0026] See also Fig.10 See also Figures 5 to 9 The installation method of the node structure in this implementation is as follows:

[0027] (1) The hanger 2 is fixed to the curtain wall panel 6 with a back bolt 5; wherein the back bolt 5 is a prior art, such as a nut embedded curtain wall panel back bolt disclosed in the authorization announcement number CN 208379853 U;

[0028] (2) Hang the curtain wall panel 6 on the vertical side of the beam 1 through the rectangular notch 2-5 of the hanger 2, and move it left and right to a suitable position, then screw in the adjustment screw 3 and adjust the height of the curtain wall panel 6 on the beam 1;

[0029] (3) Drive the limiting self-tapping screw 4 from the bottom hole 2-7 at the top of the hanger 2 and extend it to between the vertical side of the beam 1 and the vertical side 2-3 on the right side of the hanger 2 to fix the hanger 2 and the vertical side of the beam 1 together.

[0030] Example 2

[0031] See also Fig.11 and 12 The difference between this example and Example 1 is that two limit self-tapping screws 4 are symmetrically arranged on both sides of the adjusting screw 3, and the limit self-tapping screws 4 are respectively tapped from both sides of the hanger 2 to between the vertical side of the beam 1 and the vertical side 2-3 on the right side of the hanger 2 to limit the up and down movement of the hanger. Accordingly, the bottom hole described in Example 1 is not arranged on the top of the hanger 2. Of course, in order to make the hanger 2 universal, the bottom hole described in Example 1 is also arranged, and it can be left idle during assembly.

[0032] See also Fig.13 See also Figures 5 to 9 The installation method of the node structure described in this embodiment is exactly the same as steps (1) and (2) of the above example 1. The difference is that in step (3), the limiting self-tapping screws 4 are directly driven into the space between the lower hangers 2 and the beam 1 on both sides of the hangers 2 to fix the hangers 2 and the vertical sides of the beam 1 together.

Claims

1. An improved node structure for connecting a back-bolt curtain wall panel and a crossbeam, the node structure comprising a crossbeam with an angular cross section and a hanger connected to the back bolt on the curtain wall panel, characterized in that: The cross section of the hanger is Π-shaped, a back bolt cap through hole is provided in the middle of the left vertical side, and a back bolt hole coaxial with the back bolt cap through hole is provided on the right vertical side; the lower end of the right vertical side of the hanger is bent to the left to form a rectangular notch at the bottom of the hanger, and an adjustment screw hole is provided at the top of the hanger just above the rectangular notch; The vertical side of the beam is passed through the rectangular notch and arranged between the left and right vertical sides of the hanger. An adjusting screw passes through the adjusting screw hole, and the head of the screw is pressed against the top of the vertical side of the beam to adjust the height of the hanger on the beam. A limiting self-tapping screw is driven between the vertical side of the beam and the right vertical side of the hanging component to limit the movement of the hanging component on the beam.

2. The improved node structure for connecting a back-bolt curtain wall panel and a crossbeam according to claim 1, characterized in that: The position-limiting self-tapping screw is passed through the top of the hanging component and arranged between the vertical side of the beam and the right vertical side of the hanging component.

3. The improved node structure for connecting a back-bolt curtain wall panel and a crossbeam according to claim 1, characterized in that: The position-limiting self-tapping screw is passed through the side of the hanging component and arranged between the vertical side of the beam and the right vertical side of the hanging component, and is located close to the rectangular notch.

4. An improved node structure for connecting a back-bolted curtain wall panel and a crossbeam according to claim 1, 2 or 3, characterized in that: There are two limit self-tapping screws, which are symmetrically arranged with the cross section where the axis of the adjusting screw is located as the center.

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