CN115478639A - A connected node that is used for back of body bolt formula curtain panel and crossbeam - Google Patents

Abstract

The invention relates to a connecting node for a back-bolt type curtain wall panel and a cross beam, which comprises a hanging piece and a seat code; the multifunctional seat is characterized in that a three-dimensional adjusting structure and a wedge-shaped connecting structure which are composed of rectangular bulges, rectangular grooves, wedge-shaped locking strips, n-shaped clamping sleeves, tubular screw rods, locking nuts and locking screws are arranged between the hanging piece and the seat. The connecting node can adjust the space position of the curtain wall panel, limit the upward throwing motion of the curtain wall panel, resist the torque generated by the gravity of the curtain wall panel and has very superior stability and anti-seismic performance.

Description

A connection node for back-bolted curtain wall panels and beams

technical field

The invention relates to the field of building curtain walls, in particular to a connection structure between a curtain wall panel and a beam.

Background technique

The building curtain wall is an independent enclosure structure system. The current mainstream construction method is the dry hanging method. This method uses metal pendants to hang the curtain wall panels on the metal skeleton connected to the main structure. In order to improve the convenience of curtain wall panel installation, the usual practice is to fix part of the metal pendant on the beam of the skeleton, and the other part on the connector of the curtain wall panel. The utility model patent application whose publication number is CN 203022169 U, the invention patent application whose publication number is CN 103452214 A and the invention patent application whose publication number is 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) they are connected together by a groove-type up and down plug-in structure, and (2) they are connected by screws to adjust the vertical height of the curtain wall panels. Therefore, there are obviously the following defects: First, since the opening of the slot on the lower pendant is upward, and there is no fixed connection mechanism between the upper and lower pendants, there is a risk of the curtain wall panel being thrown out even if the upward throwing motion generated by the seismic wave exists. The second is that the upper pendant is supported on the lower pendant by the height adjustment screw point, and the self-weight of the curtain wall panel will inevitably generate a moment of horizontal rotation around the screw head; The groove-type plug-in structure obviously affects the convenience of installation.

Due to the above-mentioned defects in the prior art, it is of great significance to develop a connection node (or connection member) for curtain wall panels and beams that has good seismic performance and is easy to install.

Contents of the invention

The technical problem to be solved by the present invention is to provide a connection node for back-bolted curtain wall panels and beams, which is not only convenient for installation, but also resistant to upward throwing movement generated by seismic waves.

The present invention solves above-mentioned technical problem scheme as follows:

A connection node for a back-bolt curtain wall panel and a beam, characterized in that the connection node includes a hanger connected to the back bolt on the curtain wall panel, the hanger is L-shaped, and one of its right angles is provided with a back bolt. The back bolt hole, the other right-angled side is oppositely provided with the seat code connecting the beam;

The middle part of the other right-angled side of the pendant is provided with an adjustment long hole, and the adjustment long hole is perpendicular to the right-angled side with the back bolt hole;

The seat code is in the shape of a line or Γ; when the seat code is in the shape of a line, a rectangular protrusion extends upward from one end of the seat opposite to the pendant, and the other end is fixedly connected with the beam mounting hole; when the seat code is Γ-shaped, the head of the horizontal side of the seat code and the side opposite to the pendant extends upward with a rectangular protrusion, and the vertical side is provided with a mounting hole parallel to the horizontal side ;

The rectangular protrusion is provided with a rectangular slot through front and back, the symmetrical center line of the rectangular slot is orthogonal to the symmetrical center line of the adjusting long hole set on the pendant; the middle part of the inner wall of the rectangular slot is opposite to the The upper surface of the rectangular protrusion is parallel to the strip-shaped protrusion, and the lower surface of the strip-shaped protrusion is inclined from the inner wall of the rectangular groove to the bottom of the rectangular groove, so that between the inner wall of the rectangular groove and the lower surface of the strip-shaped protrusion form a wedge-shaped angle;

A Π-shaped ferrule is buckled on the rectangular protrusion, and the middle part of the ferrule opposite to the rectangular groove is provided with a first threaded hole; the lower part of the rectangular groove is pierced with a wedge-shaped locking strip, The two sides of the upper surface of the wedge-shaped locking strip are respectively provided with wedge-shaped projections matching the wedge-shaped corners; the middle part of the wedge-shaped locking strip is provided with a second threaded hole, and the axis of the threaded hole Coplanar with the center line of symmetry of the rectangular slot;

A tubular screw rod is perforated in the first threaded hole provided on the Π-shaped ferrule, and the lower head of the screw rod extends to the upper surface of the strip-shaped protrusion, and the upper head passes through the long adjustment hole and is The lock nut is fixed on the pendant; the top of the tube hole of the screw rod is provided with a hexagonal counterbore, and the bottom of the hexagonal counterbore is a light hole, and a matching locking screw is formed by the tube hole of the screw rod. The head extends into the second threaded hole provided on the wedge-shaped locking bar, and clamps the seat code on the end surface of the screw rod.

In order to increase fault tolerance and save installation time, an improvement solution of the present application is that both sides of the lower surface of the wedge-shaped locking strip are respectively provided with wedge-shaped protrusions matching the wedge-shaped corners.

The above connection nodes can adjust the spatial position relationship between the curtain wall panel and the keel frame three-dimensionally, wherein the adjusting long hole set on the pendant is used to adjust the vertical distance between the curtain wall panel and the keel frame, and twisting the tubular screw can Adjust the curtain wall panel up and down, loosen the locking screw and then push the wedge-shaped locking bar to move back and forth in the rectangular groove, which can synchronously drive the curtain wall panel to move left and right.

It can be seen from the prior art that there are two installation schemes for curtain wall panels. The first is that a row of curtain wall panels is fixed on the upper and lower beams, and the second is that the lower side of the previous row of curtain wall panels and the upper side of the next row of curtain wall panels Be fixed on the same beam (to save a beam). 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 in the same shape; when the second installation scheme is selected, the seat codes in the connection nodes below the upper row of curtain wall panels can be If the Γ shape is selected, the seat code in the connection node on the next row of curtain wall panels can be in the shape of a straight line.

In order to improve the stability of the connection node, when the seat code is Γ-shaped, its horizontal side extends to the outside of the vertical side and bends downward to form a slot, the width of which is the same as the thickness of the angle steel used as the beam match.

The material of the curtain wall panel in the above technical solution of the present application may be natural stone or artificial board, wherein the artificial board may be ceramic panel or cement fiber panel.

Compared with the prior art, the connection node described in this application has the following beneficial effects:

1. Use the wedge-shaped locking strip and the locking screw to clamp the seat on the lower end of the tubular 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 the seismic wave;

2. Utilizing the joint effect of the Π-shaped ferrule and the wedge-shaped locking strip inside and outside the rectangular groove, the ability of the node to resist horizontal rotational moments is significantly improved, so that the entire node has only one groove-type inter-plug structure (that is, a rectangular groove) It also has good stability in the case of

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, so when the system generates a vertical force (vertical upward force), the vertical The axial force is decomposed into a vertical component force and two opposite lateral component forces by the wedge-shaped connection structure; under the force of the horizontal component force, the two walls of the rectangular groove must have a tendency to draw inward. Obviously, the stability of the entire node can be further improved.

Description of drawings

1 to 4 are schematic structural views of a specific embodiment of the connection node described in the present application, wherein, Fig. 1 is a front view (sectioned along the axis of the locking screw), Fig. 2 is a top view, Fig. 3 is a bottom view, and Fig. 4 for the right view.

Fig. 5 is a schematic diagram of a partial structure of the connection nodes shown in Figs. 1-4 used for an open curtain wall.

6 to 9 are structural schematic diagrams of another specific embodiment of the connection node described in the present application, wherein, FIG. 6 is a front view (sectioned along the axis of the locking screw), FIG. 7 is a top view, and FIG. 8 is a bottom view. 9 is a right view.

Fig. 10 is a schematic diagram of a partial structure of the connection nodes shown in Figs. 6-9 for a waterproof curtain wall.

Figures 11 to 14 are structural schematic diagrams of a third specific embodiment of the connection node described in the present application, wherein Figure 11 is a front view (sectioned along the axis of the locking screw), Figure 12 is a top view, and Figure 13 is a bottom view, Figure 14 is a right side view.

Fig. 15 is a schematic diagram of a partial structure of the connection nodes shown in Figs. 11-14 used in another curtain wall with an opening method.

specific embodiment

example 1

Referring to Figures 1 to 4, the connection nodes in this example include a pendant 1 connected to the back bolt on the curtain wall panel. The sides are oppositely provided with an inline seat code 3 connecting the crossbeam (not shown in the crossbeam figure); the middle part of the other right-angled side of the pendant 1 is provided with an adjustment slot 4, and the adjustment slot 4 is perpendicular to the back bolt hole. 2 at right angles.

Referring to Figures 1 to 4, one end of the base 3 opposite to the pendant 1 extends upwards with a rectangular protrusion 5, and the other end is provided with a long mounting hole 6 connecting the beam (not shown in the figure of the beam); the rectangular protrusion 5 is provided with a rectangular groove 7 that runs through front and back, and the center line of symmetry of the rectangular groove 7 is orthogonal to the center line of symmetry of the adjusting long hole 4 set on the pendant 1; There is a strip-shaped protrusion 8 parallel to the upper surface of the strip 5, and the lower surface of the strip-shaped protrusion 8 is inclined from the inner wall of the rectangular groove 7 to the bottom of the rectangular groove 7, so that under the inner wall of the rectangular groove 7 and the strip-shaped protrusion 8 A wedge-shaped angle is formed between the surfaces.

Referring to Figures 1 to 4, a Π-shaped ferrule 9 is buckled on the rectangular protrusion 5, and the middle part of the ferrule 9 opposite to the rectangular groove 7 is provided with a first threaded hole (numbering is not given among the figures); the rectangular groove 7 The lower part of the wedge-shaped locking strip 10 is pierced, and the two sides of the upper surface of the wedge-shaped locking strip 10 are respectively provided with wedge-shaped protrusions 11 matching the wedge-shaped corners; the middle part of the wedge-shaped locking strip 11 A second threaded hole (number not given in the figure) is provided, and the axis of the threaded hole is coplanar with the symmetrical center line of the rectangular groove 7 .

Referring to FIG. 1 , in order to increase fault tolerance and save installation time, both sides of the lower surface of the wedge-shaped locking bar 10 are respectively provided with wedge-shaped protrusions 11 matching the wedge-shaped corners.

Referring to Figures 1 to 4, a tubular screw 12 is pierced in the first threaded hole provided on the Π-shaped ferrule 9, and the lower head of the screw 12 extends to the upper surface of the strip-shaped protrusion 8 in the middle of the inner wall of the rectangular groove 7 , the upper head passes through the adjusting long hole 4 and is fixed on the pendant 1 by the lock nut 13; the upper head of the pipe hole of the screw rod 12 is provided with an inner hexagonal counterbore 14, and the lower part of the inner hexagonal counterbore 14 is a light hole, a matching The locking screw 15 passes through the tube hole of the tubular screw rod 12 , and the head stretches into the second threaded hole provided by the wedge-shaped locking bar 10 , and the seat code 3 is clamped on the end face of the screw rod 12 . The function of the above-mentioned inner hexagonal counterbore 14 is to facilitate turning the tubular screw 12 up and down to adjust the vertical height of the curtain wall panel 18 .

Referring to Fig. 5 in conjunction with Figs. 1-4, the connection nodes described in this example are suitable for open curtain walls, and the curtain walls include connection nodes 16, beams 17 made of ordinary angle steel and curtain wall panels 18, wherein the connection nodes 16 are passed through by two bolts 19 The elongated mounting hole 6 on the base 3 is fixed on the beam 17, and the curtain wall panel 18 is fixed together with the connection node 16 by the back bolt 20 through the back bolt hole 2 on the pendant 1 .

Referring to Fig. 5 and in conjunction with Figs. 1 to 4, the connection node 16 described in this example can carry out the spatial positional relationship between the curtain wall panel 18 (such as marble) and the dragon skeleton (including the beam and the vertical beam, which is not shown in the vertical beam figure). Three-dimensional adjustment, wherein, the long adjustment hole 4 provided on the pendant 1 can adjust the vertical distance between the curtain wall panel 18 and the crossbeam, and the vertical height of the curtain wall panel 18 can be adjusted up and down by turning the tubular screw 12, and the lock can be loosened The screw 15 then pushes 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.

Referring to Fig. 5 and combined with Fig. 1, the mating surface of the pendant 1 and the curtain wall panel 18, the mating surface of the pendant 1 and the lock nut 13 and the ferrule 9, and the seat code 3 and the washer under the bolt 19 (the number is not given in the figure ) are equipped with anti-slip corrugations on the mating surface (the number is not given in the figure). The curtain wall panel 18 described in this example is natural stone, such as marble.

Example 2

Referring to Figures 6-9, the seat code 3 in this example is Γ-shaped, the head of the upper horizontal side is provided with the above-mentioned rectangular protrusion 5, and the vertical side is provided with two circular mounting holes fixedly connected with the beam 6.

Referring to FIGS. 6-9 , other structures of the connection nodes described in this example are the same as those in Example 1, and can be implemented with reference to FIGS. 1-4 .

Referring to Fig. 10 in conjunction with Figs. 6-9 and Figs. 1-4, the connection nodes described in this example are suitable for open waterproof curtain walls, which include connection nodes 16, beams 17 made of ordinary angle steel and curtain wall panels 18, wherein the connection nodes 16 Two bolts 19 are fixed on the beam 17 through the circular mounting holes 6 on the base 3 , and the curtain wall panel 18 is fixed together with the connection node 16 by the back bolt 20 through the back bolt hole 2 on the pendant 1 .

The method for adjusting the spatial three-dimensional positional relationship between the curtain wall panel 18 and the keel frame (including beams and vertical beams, wherein the vertical beams are not shown in the figure) by connecting nodes described in this example can be implemented with reference to Example 1. The curtain wall panel 18 described in this example is a ceramic panel.

Example 3

Referring to Figures 11-14, 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 is that the upper horizontal edge extends to the outside of the vertical edge and bends downward Folded into a card slot 3-1, the width of the card slot 3-1 matches the thickness of the angle steel used as the beam.

Referring to Figures 11-14, other structures of the connection nodes in this example are the same as those in Example 1, and can be implemented with reference to Figures 1-4.

Referring to Figure 15 and combining Figures 11 to 14 and Figures 1 to 4, the connection nodes described in this example are suitable for open curtain walls where the lower side of the upper row of curtain wall panels and the upper side of the next row of curtain wall panels share a beam, and the curtain wall includes The connection node 16' described in this example, the connection node 16 described in the above example 1, the beam 17 and the curtain wall panel 18 made of unequal angle steel. Wherein, the connecting node 16 of Example 1 is fixed on the horizontal side of the beam 17, and the connecting node 16' of this example is fixed on the vertical side of the beam 17, and the clamping groove 3-1 is buckled on the top of the vertical side of the beam 17; Example 1 The connecting node 16 is fixed on the lateral side of the beam 17 by two bolts 19 through the elongated mounting hole 6 on the base 3 , and the curtain wall panel 18 located in the next row is passed through the back bolt 20 on the pendant 1 by the back bolt 19 The hole 2 is fixed together with the connection node 16; the connection node 16' described in this example is fixed on the vertical side of the crossbeam 17 through the circular mounting hole 6 on the seat code 3 by another two bolts 19', and is located in the next row The curtain wall panel 18' is fixed together with the connection node 16' by another back bolt 20' through the back bolt hole 2 on the pendant 1.

The method for adjusting the spatial three-dimensional positional relationship between the connection nodes of the curtain wall panels 18 and 18' and the keel frame (comprising beams and vertical beams, which are not shown in the vertical beam diagram) described in this example can be implemented with reference to Example 1. Curtain wall panels 18 and 18' described in this example are cement fiber panels.

Claims (3)

1. A connecting node for a back bolt type curtain wall panel and a cross beam is characterized by comprising a hanging piece connected with a back bolt on the curtain wall panel, wherein the hanging piece is L-shaped, a back bolt hole penetrating through the back bolt is formed in one right angle of the hanging piece, and a seat code connected with the cross beam is oppositely arranged on the other right angle side of the hanging piece;

the middle part of the other right-angle side of the hanging piece is provided with an adjusting long hole which is vertical to the right-angle side provided with the back bolt hole;

the seat code is in a straight shape or a reversed L shape; when the seat is in a straight line shape, one end of one side of the seat opposite to the hanging piece extends upwards to form a rectangular bulge, and the other end of the seat is provided with a mounting hole fixedly connected with the cross beam; when the seat code is in the shape of the inverted L, the head of the transverse edge of the seat code, which is opposite to the pendant, extends upwards to form a rectangular bulge, and the vertical edge is provided with a mounting hole parallel to the transverse edge;

the rectangular protrusion is provided with a rectangular groove which is penetrated through from front to back, and the symmetrical center line of the rectangular groove is orthogonal to the symmetrical center line of the adjusting long hole arranged on the hanging piece; the middle part of the inner wall of the rectangular groove is relatively provided with a strip-shaped bulge parallel to the upper surface of the rectangular bulge, and the lower surface of the strip-shaped bulge inclines from the inner wall of the rectangular groove to the bottom of the rectangular groove, so that a wedge-shaped angle is formed between the inner wall of the rectangular groove and the lower surface of the strip-shaped bulge;

an n-shaped clamping sleeve is buckled on the rectangular bulge, and a first threaded hole is formed in the middle of the clamping sleeve opposite to the rectangular groove; wedge-shaped locking strips penetrate through the lower parts of the rectangular grooves, and wedge-shaped protrusions matched with the wedge-shaped angles are arranged on two sides of the upper surfaces of the wedge-shaped locking strips respectively; the middle part of the wedge-shaped locking strip is provided with a second threaded hole, and the axis of the threaded hole is coplanar with the symmetrical center line of the rectangular groove;

a tubular screw rod is arranged in a first threaded hole formed in the n-shaped clamping sleeve in a penetrating manner, the lower head of the screw rod extends to the upper surface of the strip-shaped bulge, and the upper head of the screw rod penetrates through the long adjusting hole and is fixed on the pendant through a locking nut; the upper end of the pipe hole of the screw is provided with an inner hexagonal counter bore, the lower part of the inner hexagonal counter bore is a unthreaded hole, a locking screw matched with the inner hexagonal counter bore penetrates out of the pipe hole of the screw, and the head part of the inner hexagonal counter bore extends into a second threaded hole formed in the wedge-shaped locking strip to clamp the seat code on the end surface of the screw.

2. The connection node for the bolt-backed curtain wall panel and the cross beam as claimed in claim 1, wherein wedge-shaped protrusions matched with the wedge-shaped corners are respectively arranged on two sides of the lower surface of the wedge-shaped locking strip.

3. A connection node for a cotter-back curtain wall panel and a beam as claimed in claim 1 or 2, wherein when the stop is of t-shape, its transverse side extends to the outside of the vertical side and is bent downwards to form a slot, the width of which matches the thickness of the angle steel as the beam.

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