A connecting node for a back-bolted curtain wall panel and a cross beam

Abstract

The present invention relates to a connection node for a back-bolted curtain wall panel and a cross beam. The connection node includes a hanging piece and a seat code; a three-dimensional adjustment structure and a wedge-shaped connection structure composed of a rectangular protrusion, a rectangular groove, a wedge-shaped locking strip, a Π-shaped bushing, a tubular screw, a locking nut, and a locking screw are provided between the hanging piece and the seat code. This connection node can not only adjust the spatial position of the curtain wall panel, but also limit the upward movement of the curtain wall panel, and can also resist the torque generated by the gravity of the curtain wall panel, and its stability and seismic performance are very superior.

Description

Technical Field

[0001] The present invention relates to the field of building curtain walls, and particularly to a connection structure between a curtain wall panel and a cross beam. Background Art

[0002] A building curtain wall is an independent enclosure structure system. The current mainstream construction method is the dry-hanging method, which uses metal hangers to suspend the curtain wall panel on a metal skeleton connected to the main structure. To improve the convenience of installing the curtain wall panel, it is common practice to fix a part of the metal hanger on the cross beam of the skeleton and another part on the connecting piece of the curtain wall panel, and the two parts are connected together by an up-and-down insertion structure. For example, the utility model patent application with the publication number CN 203022169U, the invention patent application with the publication number CN 103452214A, and the invention patent application with the publication number CN 107447900A. From the technical solutions of the above three patent applications, the common characteristics of the three are: (1) They are connected together by a grooved up-and-down insertion structure, and (2) Screws are used to adjust the vertical height of the curtain wall panel. Therefore, there are obvious defects as follows: First, since the slot opening on the lower hanger faces upward and there is no fixed connection mechanism between the upper and lower hangers, the upward throwing motion generated by seismic waves poses a risk that the curtain wall panel may be thrown out. Second, the upper hanger is supported on the lower hanger by a height-adjusting screw at a point, and the self-weight of the curtain wall panel will inevitably generate a moment that causes horizontal rotation around the screw head. To eliminate the influence of this moment on stability, two up-and-down distributed grooved insertion structures need to be set between the upper and lower hangers, which will obviously affect the installation convenience.

[0003] Due to the above defects existing in the prior art, it is of great significance to develop a connection node (or connection component) for a curtain wall panel and a cross beam with good seismic performance and convenient installation. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a connection node for a back-bolted curtain wall panel and a cross beam, which is not only convenient for installation but also can resist the upward throwing motion generated by seismic waves.

[0005] The solution of the present invention to the above technical problem is as follows:

[0006] A connection node for a back-bolted curtain wall panel and a cross beam, characterized in that the connection node includes a hanger connected to a back bolt on the curtain wall panel. The hanger is L-shaped, and a back bolt hole for passing through the back bolt is provided at one right angle, and a seat code for connecting the cross beam is oppositely arranged on the other right angle side.

[0007] A regulating long hole is provided in the middle of the other right angle side of the hanger, and the regulating long hole is perpendicular to the right angle side provided with the back bolt hole.

[0008] The seat code described above is in the shape of a straight line or a Γ shape; when the seat code is in the shape of a straight line, one end of the side of the seat code opposite to the hanging part extends upward with a rectangular protrusion, and the other end is provided with a mounting hole for fixedly connecting the cross beam; when the seat code is in the shape of a Γ shape, the head of the horizontal side of the side of the seat code opposite to the hanging part extends upward with a rectangular protrusion, and the vertical side is provided with a mounting hole parallel to the horizontal side;

[0009] A rectangular groove penetrating through from front to back is provided on the rectangular protrusion, and the symmetric center line of the rectangular groove is orthogonal to the symmetric center line of the adjusting long hole provided on the hanging part; relatively arranged in the middle of the inner wall of the rectangular groove are strip-shaped protrusions parallel to the upper surface of the rectangular protrusion, and the lower surface of the strip-shaped protrusion inclines from the inner wall of the rectangular groove towards the bottom of the rectangular groove, so as to form a wedge angle between the inner wall of the rectangular groove and the lower surface of the strip-shaped protrusion;

[0010] A Π-shaped sleeve is buckled on the rectangular protrusion, and a first threaded hole is provided in the middle of the sleeve opposite to the rectangular groove; a wedge-shaped locking strip is penetrated through the lower part of the rectangular groove, and wedge-shaped protrusions matching the wedge angle are respectively provided on both sides of the upper surface of the wedge-shaped locking strip; a second threaded hole is provided in the middle of the wedge-shaped locking strip, and the axis of the threaded hole is coplanar with the symmetric center line of the rectangular groove;

[0011] A tubular screw is penetrated through the first threaded hole provided on the Π-shaped sleeve, the lower head of the screw extends to the upper surface of the strip-shaped protrusion, the upper head passes through the adjusting long hole and is fixed on the hanging part by a locking nut; an internal hexagonal counterbore is provided at the upper head of the pipe hole of the screw, the lower part of the internal hexagonal counterbore is a smooth hole, and a locking screw matching it passes through the pipe hole of the screw, and the head extends into the second threaded hole provided on the wedge-shaped locking strip, clamping the seat code on the end surface of the screw.

[0012] In order to increase the fault tolerance ability and save the installation time, an improved scheme of the present application is that wedge-shaped protrusions matching the wedge angle are also respectively provided on both sides of the lower surface of the wedge-shaped locking strip.

[0013] The above connection node can perform three-dimensional adjustment on the spatial position relationship between the curtain wall panel and the keel frame. Among them, the adjusting long hole provided on the hanging part is used to adjust the vertical distance between the curtain wall panel and the keel frame. By screwing the tubular screw, the curtain wall panel can be adjusted up and down. Loosen the locking screw and then push the wedge-shaped locking strip to move back and forth in the rectangular groove, and the curtain wall panel can be synchronously driven to move left and right.

[0014] As can be seen from the prior art, there are two installation schemes for curtain wall panels. The first is that a row of curtain wall panels are fixed on the upper and lower crossbeams. The second is that the lower edge of the upper row of curtain wall panels and the upper edge of the lower row of curtain wall panels are fixed on the same crossbeam (to save one crossbeam). When the first installation scheme is selected, the seat codes in the connection nodes on the upper and lower sides of a row of curtain wall panels are all selected as straight-shaped. When the second installation scheme is selected, the seat code in the connection node at the lower edge of the upper row of curtain wall panels can be selected as Γ-shaped, and the seat code in the connection node at the upper edge of the lower row of curtain wall panels can be selected as straight-shaped.

[0015] To improve the stability of the connection node, when the seat code is Γ-shaped, its horizontal side extends outward from the vertical side and is bent downward to form a card slot, and the width of the card slot matches the thickness of the angle steel serving as the crossbeam.

[0016] In the above technical solution of the present application, the material of the curtain wall panel can be natural stone or artificial board, and the artificial board can be a ceramic panel, a cement fiber panel, etc.

[0017] The connection node of the present application has the following beneficial effects compared with the prior art:

[0018] 1. The seat code is clamped on the lower end face of the tubular screw rod by using a wedge-shaped locking strip and a locking screw, which can not only adjust the curtain wall panel up and down, but also avoid the risk of the curtain wall panel being thrown out by the upward throwing movement generated by seismic waves;

[0019] 2. By the combined action of the Π-shaped bushing and the wedge-shaped locking strip inside and outside the rectangular groove, the ability of the node to resist the horizontal rotation moment is significantly improved, so that the whole node has good stability even in the case of only one groove-type insertion structure (i.e., one rectangular groove);

[0020] 3. The lower surface of the strip-shaped protrusion and the wedge-shaped protrusion on the upper surface of the wedge-shaped locking strip form a wedge-shaped connection structure. Therefore, when a vertical force (a vertically upward force) is generated in the system, the vertical force is decomposed into a vertical component force and two relatively directed horizontal component forces by the wedge-shaped connection structure; under the action of the horizontal component forces, the two walls of the rectangular groove will inevitably have a tendency to close inward, which can obviously further improve the stability of the whole node. Description of the Drawings

[0021] Figures 1 to 4 is a schematic structural diagram of a specific embodiment of the connection node of the present application, where, Figure 1 is the front view (sectioned along the axis of the locking screw), Figure 2 is the top view, Figure 3 is the bottom view, Figure 4 is the right view.

[0022] Figure 5 is Figures 1 to 4The shown connection node is a schematic diagram of the partial structure of an open - type curtain wall.

[0023] Figures 6 to 9 This is a schematic diagram of the structure of another specific embodiment of the connection node described in the present application, where Figure 6 is the front view (sectioned along the axis of the locking screw), Figure 7 is the top view, Figure 8 is the bottom view, Figure 9 is the right view.

[0024] Figure 10 is Figures 6 to 9 The shown connection node is a schematic diagram of the partial structure of a waterproof curtain wall.

[0025] Figures 11 to 14 This is a schematic diagram of the structure of the third specific embodiment of the connection node described in the present application, where Figure 11 is the front view (sectioned along the axis of the locking screw), Figure 12 is the top view, Figure 13 is the bottom view, Figure 14 is the right view.

[0026] Figure 15 is Figures 11 to 14 The shown connection node is a schematic diagram of the partial structure of another open - type curtain wall. Specific embodiment

[0027] Example 1

[0028] Refer to Figures 1 to 4 In this example, the connection node includes a hanger 1 connected to the back - bolt on the curtain - wall panel. The hanger 1 is L - shaped. A back - bolt hole 2 for passing through the back - bolt is provided on one of its right - angled sides, and a flat - shaped seat code 3 for connecting the cross - beam (not shown in the figure) is oppositely arranged on the other right - angled side; a adjusting long hole 4 is provided in the middle of the other right - angled side of the hanger 1, and the adjusting long hole 4 is perpendicular to the right - angled side provided with the back - bolt hole 2.

[0029] Refer to Figures 1 to 4 On the side of the seat code 3 opposite to the hanger 1, a rectangular protrusion 5 extends upward at one end, and a long - shaped mounting hole 6 for connecting the cross - beam (not shown in the figure) is provided at the other end; a rectangular groove 7 penetrating through from front to back is provided on the rectangular protrusion 5, and the symmetric center line of the rectangular groove 7 is orthogonal to the symmetric center line of the adjusting long hole 4 provided on the hanger 1; strip - shaped protrusions 8 parallel to the upper surface of the rectangular protrusion 5 are oppositely provided in the middle of the inner wall of the rectangular groove 7, and the lower surface of the strip - shaped protrusion 8 inclines from the inner wall of the rectangular groove 7 towards the bottom of the rectangular groove 7, so as to form a wedge - shaped angle between the inner wall of the rectangular groove 7 and the lower surface of the strip - shaped protrusion 8.

[0030] Refer to Figures 1 to 4, a Π-shaped socket 9 is buckled on the rectangular protrusion 5. A first threaded hole (not numbered in the figure) is provided in the middle of the socket 9 opposite to the rectangular groove 7; a wedge-shaped locking bar 10 is passed through the lower part of the rectangular groove 7. Wedge-shaped protrusions 11 matching the wedge angles are respectively provided on both sides of the upper surface of the wedge-shaped locking bar 10; a second threaded hole (not numbered in the figure) is provided in the middle of the wedge-shaped locking bar 10, and the axis of this threaded hole is coplanar with the symmetric center line of the rectangular groove 7.

[0031] See Figure 1 , in order to increase the fault tolerance ability and save the installation time, wedge-shaped protrusions 11 matching the wedge angles are also respectively provided on both sides of the lower surface of the wedge-shaped locking bar 10.

[0032] See Figures 1 to 4 , a tubular screw rod 12 is passed through the first threaded hole provided on the Π-shaped socket 9. The lower head of this screw rod 12 extends to the upper surface of the strip-shaped protrusion 8 in the middle of the inner wall of the rectangular groove 7, and the upper head passes through the adjusting long hole 4 and is fixed on the hanging piece 1 by the locking nut 13; an internal hexagonal counterbore 14 is provided at the upper head of the pipe hole of the screw rod 12. The lower part of this internal hexagonal counterbore 14 is a smooth hole. A locking screw 15 matching it passes through the pipe hole of the tubular screw rod 12, and the head extends into the second threaded hole provided on the wedge-shaped locking bar 10, clamping the seat code 3 on the end face of the screw rod 12. The function of the above internal hexagonal counterbore 14 is to facilitate the up and down turning of the tubular screw rod 12 to adjust the vertical height of the curtain wall panel 18.

[0033] See Figure 5 And in combination with Figures 1 to 4 , the connection node described in this example is applicable to an open-type curtain wall. This curtain wall includes a connection node 16, a cross beam 17 made of ordinary angle steel, and a curtain wall panel 18. Among them, the connection node 16 is fixed on the cross beam 17 by two bolts 19 through the long installation holes 6 on the seat code 3, and the curtain wall panel 18 is fixed to the connection node 16 by back bolts 20 through the back bolt holes 2 on the hanging piece 1.

[0034] See Figure 5 And in combination with Figures 1 to 4 , the connection node 16 described in this example can perform three-dimensional adjustment on the spatial position relationship between the curtain wall panel 18 (such as marble) and the keel frame (including cross beams and vertical beams, where the vertical beam is not shown in the figure). Among them, the adjusting long hole 4 provided on the hanging piece 1 can adjust the vertical distance between the curtain wall panel 18 and the cross beam. Turning the tubular screw rod 12 can adjust the vertical height of the curtain wall panel 18 up and down. Loosen the locking screw 15 and then push the wedge-shaped locking bar 10 to move back and forth in the rectangular groove 7, which can synchronously drive the curtain wall panel 18 to move left and right.

[0035] See See Figure 5 And in combination with Figure 1, anti-slip corrugations (not numbered in the figure) are provided on the mating surface between the pendant 1 and the curtain wall panel 18, on the mating surfaces between the pendant 1 and the locking nut 13 and the ferrule 9, and on the mating surface between the seat code 3 and the lower washer of the bolt 19 (not numbered in the figure). In this example, the curtain wall panel 18 is natural stone, such as marble.

[0036] Example 2

[0037] See Figures 6 to 9 , in this example, the seat code 3 is Γ-shaped, and the head of the upper horizontal side is provided with the rectangular protrusion 5, and two circular mounting holes 6 for fixedly connecting with the cross beam are provided on the vertical side.

[0038] See Figures 6 to 9 , other structures of the connection node described in this example other than the above are the same as those in Example 1 and can be referred to Figures 1 to 4 for implementation.

[0039] See Figure 10 and in combination with Figures 6 to 9 and Figures 1 to 4 , the connection node described in this example is applicable to an open waterproof curtain wall, which includes a connection node 16, a cross beam 17 made of ordinary angle steel, and a curtain wall panel 18. Among them, the connection node 16 is fixed on the cross beam 17 by two bolts 19 through the circular mounting holes 6 on the seat code 3, and the curtain wall panel 18 is fixed together with the connection node 16 by back bolts 20 through the back bolt holes 2 on the pendant 1.

[0040] The method for adjusting the three-dimensional spatial position relationship between the curtain wall panel 18 and the keel frame (including the cross beam and the vertical beam, where the vertical beam is not shown in the figure) described in this example can be referred to Example 1 for implementation. In this example, the curtain wall panel 18 is a ceramic panel.

[0041] Example 3

[0042] See Figures 11 to 14 , the seat code 3 in this example is improved on the basis of the Γ-shaped seat code 3 described in Example 2. The improvement lies in that the upper horizontal side extends outward to the vertical side and is bent downward to form a card slot 3-1, and the width of the card slot 3-1 matches the thickness of the angle steel used as the cross beam.

[0043] See Figures 11 to 14 , other structures of the connection node described in this example other than the above are the same as those in Example 1 and can be referred to Figures 1 to 4 for implementation.

[0044] See Figure 15 and in combination with Figures 11 to 14 and Figures 1 to 4, the connection node described in this example is applicable to an open curtain wall where the lower edge of the upper row of curtain wall panels and the upper edge of the lower row of curtain wall panels share a common cross beam. The curtain wall includes the connection node 16' described in this example, the connection node 16 described in the above Example 1, a cross beam 17 made of unequal-angle steel, and curtain wall panels 18. Among them, the connection node 16 of Example 1 is fixed on the horizontal side of the cross beam 17, the connection node 16' of this example is fixed on the vertical side of the cross beam 17, and the card slot 3-1 is buckled on the upper head of the vertical side of the cross beam 17; the connection node 16 described in Example 1 is fixed on the horizontal side of the cross beam 17 by two bolts 19 through the long installation holes 6 on the seat code 3, and the curtain wall panel 18 in the lower row is fixed together with the connection node 16 by a back bolt 20 through the back bolt hole 2 on the hanging piece 1; the connection node 16' described in this example is fixed on the vertical side of the cross beam 17 by another two bolts 19' through the circular installation holes 6 on the seat code 3, and the curtain wall panel 18' in the lower row is fixed together with the connection node 16' by another back bolt 20' through the back bolt hole 2 on the hanging piece 1.

[0045] The method for the connection node described in this example to adjust the three-dimensional spatial position relationship between the curtain wall panels 18 and 18' and the keel frame (including cross beams and vertical beams, where the vertical beams are not shown in the figure) can be implemented with reference to Example 1. The curtain wall panels 18 and 18' described in this example are both cement fiber panels.

Claims

1. A connecting node for a back-bolt type curtain wall panel and a cross beam, characterized in that The connection node includes a hanging piece connected to the back bolts on the curtain wall panel. The hanging piece is L-shaped, and a back bolt hole for passing through the back bolts is provided at one right angle thereof, and seat codes for connecting the cross beam are oppositely arranged on the other right-angle side; An adjusting long hole is provided in the middle of the other right-angle side of the hanging piece, and the adjusting long hole is perpendicular to the right-angle side provided with the back bolt hole; The seat code is in the shape of a straight bar or Γ-shaped; when the seat code is in the shape of a straight bar, a rectangular protrusion extends upward from one end of the side of the seat code opposite to the hanging piece, and a mounting hole for fixedly connecting the cross beam is provided at the other end; when the seat code is Γ-shaped, a rectangular protrusion extends upward from the head of the horizontal side of the side of the seat code opposite to the hanging piece, and mounting holes parallel to the horizontal side are provided on the vertical side; A rectangular groove penetrating through the front and back is provided on the rectangular protrusion, and the symmetry center line of the rectangular groove is orthogonal to the symmetry center line of the adjusting long hole provided on the hanging piece; relatively arranged in the middle of the inner wall of the rectangular groove are strip-shaped protrusions parallel to the upper surface of the rectangular protrusion, and the lower surface of the strip-shaped protrusion inclines from the inner wall of the rectangular groove towards the bottom of the rectangular groove, thereby forming a wedge angle between the inner wall of the rectangular groove and the lower surface of the strip-shaped protrusion; A Π-shaped sleeve is buckled on the rectangular protrusion, and a first threaded hole is provided in the middle of the sleeve opposite to the rectangular groove; a wedge-shaped locking strip is penetrated through the lower part of the rectangular groove, and wedge-shaped protrusions matching the wedge angle are respectively provided on both sides of the upper surface of the wedge-shaped locking strip; a second threaded hole is provided in the middle of the wedge-shaped locking strip, and the axis of the threaded hole is coplanar with the symmetry center line of the rectangular groove; A tubular screw is penetrated through the first threaded hole provided on the Π-shaped sleeve, the lower head of the screw extends to the upper surface of the strip-shaped protrusion, the upper head passes through the adjusting long hole and is fixed on the hanging piece by a locking nut; an internal hexagonal counterbore is provided at the upper head of the pipe hole of the screw, the lower part of the internal hexagonal counterbore is a smooth hole, and a locking screw matching the internal hexagonal counterbore passes through the pipe hole of the screw, and the head extends into the second threaded hole provided on the wedge-shaped locking strip, clamping the seat code on the end surface of the screw; 2. The connection node for a back-bolt type curtain wall panel and a cross beam according to claim 1, characterized in that Wedge-shaped protrusions matching the wedge angle are also respectively provided on both sides of the lower surface of the wedge-shaped locking strip; 3. A connection node for a back-bolted curtain wall panel and a cross beam according to claim 1 or 2, characterized in that, When the seat code is Γ-shaped, its horizontal side extends towards the outside of the vertical side and is bent downward to form a clamping groove, and the width of the clamping groove matches the thickness of the angle steel serving as the cross beam.

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