Welding-free open type stone curtain wall structure and construction method

Abstract

The invention relates to the technical field of stone curtain walls, and provides a welding-free open type stone curtain wall structure and a construction method.The welding-free open type stone curtain wall structure comprises a stone curtain wall body, a first connecting part and a second connecting part, and the stone curtain wall body comprises a stone decoration panel, a heat preservation expansion material, a metal coating layer, warp ventilation protrusions, weft ventilation protrusions and back ventilation holes; a cavity is formed between the stone decoration panel and the metal coating layer, the cavity is filled with the heat preservation expansion material, the metal coating layer is provided with warp ventilation protrusions, weft ventilation protrusions and back ventilation holes which are communicated with one another, and edge ventilation holes are formed in the two ends of the warp ventilation protrusions and the two ends of the weft ventilation protrusions. The first connecting part comprises an L-shaped connecting piece and an air guide pipe, the L-shaped connecting piece is provided with a buffer cavity, one end of the air guide pipe is in threaded connection with the back vent hole, the other end of the air guide pipe is located in the buffer cavity, the buffer cavity is provided with an auxiliary vent hole, and the second connecting part is connected with the L-shaped connecting piece.

Description

Technical Field

[0001] The present invention relates to the technical field of stone curtain walls, and more particularly to a non-welded open stone curtain wall structure and a construction method thereof. Background Art

[0002] The non-welded open stone curtain wall structure is a modern building exterior facade device, mainly used to enhance the aesthetics and functionality of buildings. This structure connects stone slabs in a non-welded manner, usually using mechanical fixation or other connection methods.

[0003] After retrieval, the published patent No. CN115928919A discloses a stone curtain wall system and its installation method for passive double-zero energy consumption buildings, including main column keels, intermediate layer support keels with horizontal support rods, polyurethane heat insulation pads, UPVC heat insulation pads, intermediate layer cement pressure board layers, waterproof and airtight membrane tapes, outer layer thermal insulation rock wool layers, outer layer waterproof board layers, transverse support keels, outer layer stone panels, inner layer support keels, inner layer thermal insulation rock wool layers, inner layer cement pressure board layers, L-shaped stainless steel connectors, and aluminum alloy connectors. This stone curtain wall system has high connection strength and stability, good heat insulation, sound insulation, and airtightness, and is convenient for connection and installation, easy to construct, and can be well applied to passive double-zero energy consumption buildings to meet the heat insulation, sound insulation, and airtightness requirements of passive double-zero energy consumption buildings.

[0004] When the external environment is continuously high in temperature, the heat absorbed and stored by the building energy-saving thermal insulation materials or vacuum insulation panels filled inside the stone curtain wall cannot be automatically and efficiently discharged from the inside of the stone curtain wall by using the principle of natural convection and the characteristics of external air flow. As a result, the problem of long-term heat accumulation inside will occur. On the one hand, the long-term accumulated heat is likely to cause thermal expansion of the curtain wall materials, which may cause deformation or cracking of the curtain wall. On the other hand, at the joints between the insulation layer and the curtain wall, water vapor condensation may occur due to temperature differences, which is likely to cause mildew, corrosion, and aging of the internal insulation materials. Summary of the Invention

[0005] The purpose of the present invention is to provide a non-welded open stone curtain wall structure and a construction method thereof, aiming to solve the problems existing in the existing stone curtain walls.

[0006] To achieve the above purpose, the present invention provides the following technical solution, a non-welded open stone curtain wall structure, including: The main body of the stone curtain wall, the main body of the stone curtain wall includes a stone decorative panel, a thermal insulation and expansion material, a metal cladding layer, meridional ventilation protrusions, latitudinal ventilation protrusions, a back ventilation hole, an edge ventilation hole and a cavity. A cavity is provided between the stone decorative panel and the metal cladding layer. The thermal insulation and expansion material is filled in the cavity. The metal cladding layer is provided with meridional ventilation protrusions, latitudinal ventilation protrusions and a back ventilation hole that are interconnected. Edge ventilation holes are provided at both ends of the meridional ventilation protrusions and the latitudinal ventilation protrusions; A first connecting portion connected to the back ventilation hole, the first connecting portion includes an L-shaped connecting piece, a trachea, an auxiliary ventilation hole and a buffer cavity. The L-shaped connecting piece is provided with a buffer cavity. One end of the trachea is threadedly connected to the back ventilation hole, and the other end of the trachea is located in the buffer cavity. The buffer cavity is provided with an auxiliary ventilation hole; A second connecting portion connected to the L-shaped connecting piece, the second connecting portion is fixedly connected to the building surface.

[0007] As a further solution of the present invention, the first connecting portion further includes a rigid core and a first spring. Both groups of tracheas are connected to the rigid core. The rigid core is in sliding contact with the inner wall of the buffer cavity. The first spring is connected between the rigid core and the buffer cavity.

[0008] As a further solution of the present invention, a pillar and an extrusion protrusion are provided at the end of the L-shaped connecting piece. The two extrusion protrusions are symmetrically distributed with respect to the pillar. The length of the pillar is greater than the length of the extrusion protrusion.

[0009] As a further solution of the present invention, the second connecting portion includes a base and an elastic limiting member. The base is fixedly connected to the building surface. A Z-shaped support member is fixedly connected to the surface of the base. The L-shaped connecting piece is in contact with the surface of the Z-shaped support member. Sliding grooves are provided on the surfaces of the base and the Z-shaped support member. The elastic limiting member is slidably connected in the sliding groove.

[0010] As a further solution of the present invention, the elastic limiting member includes a limiting plate, a trapezoidal protrusion and a second spring. The limiting plate is slidably connected in the sliding groove. The second spring is connected between the two limiting plates. A trapezoidal protrusion is provided on the surface of the limiting plate. The extrusion protrusion is in sliding contact with the surface of the trapezoidal protrusion. The limiting plate is in contact with the surface of the pillar.

[0011] As a further solution of the present invention, a waterproof layer is provided between the stone decorative panel and the metal cladding layer. An opening is provided at a position corresponding to the back ventilation hole at the cavity. The back ventilation hole, the meridional ventilation protrusions and the latitudinal ventilation protrusions are in the same plane.

[0012] As a further solution of the present invention, the auxiliary ventilation hole is located on one side of the L-shaped connecting piece close to the Z-shaped support member.

[0013] Construction method of a solderless open stone curtain wall structure, the specific steps including: S1. Connect the second connecting part to the building surface; S2. Fill the heat-insulating and expanding material into the cavity on the back of the stone decorative panel, and consolidate the metal coating layer with the stone decorative panel. After forming, the back of the metal coating layer is provided with warp ventilation protrusions and weft ventilation protrusions with edge ventilation holes at both ends; S3. Pre-install one end of the air duct in the buffer cavity of the L-shaped connecting piece, and thread-connect the two air ducts into the back ventilation holes respectively; S4. On the premise that the auxiliary ventilation hole faces the ground, fixedly connect the L-shaped connecting piece to the second connecting part.

[0014] The beneficial effects of the present invention: on the one hand, by using the principle of natural convection, hot air naturally rises and is discharged through the edge ventilation holes at the upper end of the warp ventilation protrusions, and cold air enters through the edge ventilation holes at the lower end of the warp ventilation protrusions. On the other hand, the hot air is discharged to the outside through the edge ventilation holes and the auxiliary ventilation holes by the outside flowing air. This not only reduces the accumulation of heat in the stone curtain wall, making the heat release smoother and more efficient, but also can utilize the air flow in the stone curtain wall to avoid moisture accumulation and reduce the risks of mildew and corrosion, featuring good ventilation, heat dissipation and heat preservation effects. Description of the Drawings

[0015] Figure 1 is a three-dimensional view of the present invention.

[0016] Figure 2 is an exploded view of the present invention.

[0017] Figure 3 is a three-dimensional view of the main body of the stone curtain wall in an embodiment of the present invention.

[0018] Figure 4 is a three-dimensional view of the first connecting part in an embodiment of the present invention.

[0019] Figure 5 is a split view of the second connecting part in an embodiment of the present invention.

[0020] Figure 6 is a plane cross-sectional view of the present invention.

[0021] Figure 7 is a plane cross-sectional view of the L-shaped connecting piece and the second connecting part in an embodiment of the present invention.

[0022] Figure 8 is of the present invention Figure 6 partial enlarged view at a in

[0023] Reference numerals: 1 - main body of stone curtain wall, 11 - stone decorative panel, 12 - thermal insulation and expansion material, 13 - metal cladding layer, 14 - longitudinal ventilation protrusion, 15 - transverse ventilation protrusion, 16 - back ventilation hole, 17 - edge ventilation hole, 18 - waterproof layer, 19 - cavity, 191 - opening; 2 - first connection part, 21 - L-shaped connecting piece, 22 - air duct, 221 - rigid core, 23 - pillar, 24 - extrusion protrusion, 25 - first spring, 26 - auxiliary ventilation hole, 27 - buffer cavity; 3 - second connection part, 31 - base, 311 - Z-shaped support, 312 - chute, 32 - elastic limiting part, 321 - limiting plate, 322 - trapezoidal protrusion, 323 - second spring. Detailed implementation mode

[0024] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0026] Please refer to Figures 1 to 8 , in an embodiment of the present invention, a non-welded open stone curtain wall structure includes: The main body 1 of the stone curtain wall, the main body 1 of the stone curtain wall includes a stone decorative panel 11, a thermal insulation and expansion material 12, a metal cladding layer 13, a longitudinal ventilation protrusion 14, a transverse ventilation protrusion 15, a back ventilation hole 16, an edge ventilation hole 17 and a cavity 19. A cavity 19 is provided between the stone decorative panel 11 and the metal cladding layer 13. The thermal insulation and expansion material 12 is filled in the cavity 19. The metal cladding layer 13 is provided with a longitudinal ventilation protrusion 14, a transverse ventilation protrusion 15 and a back ventilation hole 16 that are interconnected. Edge ventilation holes 17 are provided at both ends of the longitudinal ventilation protrusion 14 and the transverse ventilation protrusion 15; The first connection part 2 connected to the back ventilation hole 16, the first connection part 2 includes an L-shaped connecting piece 21, an air duct 22, an auxiliary ventilation hole 26 and a buffer cavity 27. The L-shaped connecting piece 21 is provided with a buffer cavity 27. One end of the air duct 22 is threadedly connected to the back ventilation hole 16, and the other end of the air duct 22 is located in the buffer cavity 27. The buffer cavity 27 is provided with an auxiliary ventilation hole 26; The second connection part 3 connected to the L-shaped connecting piece 21, and the second connection part 3 is fixedly connected to the building surface.

[0027] Please refer to Figure 3 and Figure 8, Further, a waterproof layer 18 is provided between the stone decorative panel 11 and the metal cladding layer 13. An opening 191 is provided at a position corresponding to the back vent hole 16 in the cavity 19. The back vent hole 16, the warp vent protrusion 14, and the weft vent protrusion 15 are in the same plane.

[0028] In an embodiment of the present invention, the thermal insulation and expansion material 12 is a thermally expandable polymer or a shape memory polymer or a composite material. When heated, they can all exhibit significant unidirectional expansion characteristics and can expand in a specific direction to improve the high heat conduction efficiency and heat insulation effect. The metal cladding layer 13 is a metal frame made of aluminum alloy or stainless steel. The metal frame can not only effectively protect the edges of the stone, prevent breakage during transportation, installation, and wind resistance, enhance durability, but also provide a clean and neat appearance, making the overall effect of the curtain wall more delicate. Considering the influence of high temperature on the stone curtain wall, the metal frame usually has good thermal expansion performance and can effectively cope with the thermal expansion and contraction problems of the stone due to temperature changes.

[0029] Please refer to Figure 1 , Figure 4 and Figure 8 , In an embodiment of the present invention, the first connecting portion 2 further includes a rigid core 221 and a first spring 25. Both groups of the air ducts 22 are connected to the rigid core 221. The rigid core 221 is in sliding contact with the inner wall of the buffer cavity 27. The first spring 25 is connected between the rigid core 221 and the buffer cavity 27.

[0030] Please refer to Figure 4 , Further, a support column 23 and an extrusion protrusion 24 are provided at the end of the L-shaped connecting member 21.

[0031] Please refer to Figure 5 , Figure 7 and Figure 8 , Further, the second connecting portion 3 includes a base 31 and an elastic limiting member 32. The base 31 is fixedly connected to the building surface. A Z-shaped support member 311 is fixedly connected to the surface of the base 31. The L-shaped connecting member 21 is in contact with the surface of the Z-shaped support member 311. Sliding grooves 312 are provided on the surfaces of both the base 31 and the Z-shaped support member 311. The elastic limiting member 32 is slidably connected in the sliding groove 312.

[0032] Please refer to Figure 7 and Figure 8, Further, the elastic limiting member 32 includes a limiting plate 321, a trapezoidal protrusion 322, and a second spring 323. The limiting plate 321 is slidably connected in the chute 312. The second spring 323 is connected between the two limiting plates 321. A trapezoidal protrusion 322 is provided on the surface of the limiting plate 321. The extrusion protrusion 24 is in sliding contact with the surface of the trapezoidal protrusion 322. The limiting plate 321 is in contact with the surface of the support column 23.

[0033] In the embodiment of the present invention, the auxiliary ventilation hole 26 is located on the side of the L-shaped connecting member 21 close to the Z-shaped support member 311 or the ground. The two extrusion protrusions 24 are symmetrically distributed with respect to the support column 23. The length of the support column 23 is greater than the length of the extrusion protrusion 24.

[0034] The construction method of the weld-free open stone curtain wall structure specifically includes the following steps: S1. The base 31 is directly fixedly connected to the building surface or the pre-installed keel on the building surface through anchor bolts. In the initial state, the limiting protrusion at the middle position inside the chute 312 can ensure that the two limiting plates 321 maintain a certain gap under the action of the contraction elastic force of the second spring 323, so as to ensure that the extrusion protrusion 24 can enter between the two limiting plates 321; S2. The prefabrication process of the stone curtain wall: First, a grooving process is carried out on the back of the stone decorative panel 11, then the thermal insulation and expansion material 12 is embedded in the groove, and then a metal cladding layer 13 matching the stone decorative panel 11 is fabricated. The back of the metal cladding layer 13 is fabricated into a warp ventilation protrusion 14 and a weft ventilation protrusion 15 by die-casting or stamping processes. Edge ventilation holes 17 are fabricated at both ends of each warp ventilation protrusion 14 and weft ventilation protrusion 15 by an opening process. Since the stone decorative panel 11 is parallel to the building surface or perpendicular to the ground, the rainwater entering from the edge ventilation hole 17 above the warp ventilation protrusion 14 can directly drain out from the edge ventilation hole 17 below it along the warp ventilation protrusion 14 and will not enter the cavity 19, thereby preventing internal water accumulation. Threaded holes are fabricated on the back of the metal cladding layer 13, and then a waterproof layer 18 is bonded inside the metal cladding layer 13. Immediately afterwards, the metal cladding layer 13 and the stone decorative panel 11 are consolidated into a shape. The metal cladding layer 13 and the grooving on the back of the stone decorative panel 11 form a cavity 19 with an opening 191. Only a expansion joint is reserved between the thermal insulation and expansion material 12 and the opening 191. After absorbing heat, the thermal insulation and expansion material 12 expands towards the opening 191. The formed warp ventilation protrusion 14 and weft ventilation protrusion 15 are both communicated with the cavity 19 through the opening 191; S3. Fabricate the L-shaped connecting member 21, which is a metal frame made of aluminum alloy or stainless steel. Drill auxiliary ventilation holes 26 on the surface of the L-shaped connecting member 21, and perform anti-slip treatment on the surface of the support column 23. One end of the air guide pipe 22 is pre-installed with the rigid core 221 inside the buffer chamber 27, and one end of the air guide pipe 22 can rotate relative to the rigid core 221. Thread the other ends of the two air guide pipes 22 into the back ventilation holes 16 respectively. Through the design of the above ventilation structure combined with the first connecting part 2, on the one hand, using the principle of natural convection, hot air naturally rises and is discharged through the edge ventilation holes 17 at the upper end of the warp ventilation protrusion 14, and cold air enters through the edge ventilation holes 17 at the lower end of the warp ventilation protrusion 14, thus realizing the automatic discharge of heat. On the other hand, when the externally flowing air enters through the edge ventilation holes 17 at one end of the weft ventilation protrusion 15, it can not only accelerate the discharge of heat through the edge ventilation holes 17 at the other end of the weft ventilation protrusion 15, the edge ventilation holes 17 at both ends of the warp ventilation protrusion 14, and the auxiliary ventilation holes 26 below the buffer chamber 27, reduce the accumulation of heat in the stone curtain wall, make the heat release smoother and more efficient, but also utilize the air flow in the stone curtain wall to avoid moisture accumulation, reduce the risk of mildew and corrosion, and extend the heat preservation effect of the internal heat preservation material and the service life of the stone curtain wall; S4. With the auxiliary ventilation holes 26 facing the ground, place the two support columns 23 of the L-shaped connecting member 21 into the gap between the base 31 and the Z-shaped support member 311. After placing it for a certain distance, the shorter extrusion protrusion 24 controls the movement of the two limit plates 321 towards the support column 23 by sliding contact with the trapezoidal protrusion 322. When the extrusion protrusion 24 moves to the plane at the top of the trapezoidal protrusion 322, the friction force between the limit plate 321 and the surface of the support column 23 is the largest. Continue to press the L-shaped connecting member 21 until the support column 23 contacts the surface of the base 31. The design of the combination of the air guide pipe 22, the rigid core 221 and the first spring 25 can play a role in buffering and weakening the impact force when the stone curtain wall main body 1 is impacted frontally, reducing the risk of damage to the stone curtain wall main body 1. When subjected to severe vibration, the structural design of the cooperation of the extrusion protrusion 24, the trapezoidal protrusion 322, the limit plate 321 and the second spring 323 can also play a role in longitudinal buffering and shock absorption.

[0035] In summary, the present application utilizes the edge ventilation holes 17 at both ends of the warp ventilation protrusions 14 and the weft ventilation protrusions 15, as well as the auxiliary ventilation holes 26 where the first connection part 2 communicates with the back ventilation holes 16. On the one hand, using the principle of natural convection, hot air naturally rises and is discharged through the edge ventilation holes 17 at the upper end of the warp ventilation protrusions 14, and cold air enters through the edge ventilation holes 17 at the lower end of the warp ventilation protrusions 14. On the other hand, the hot air is discharged outward through the edge ventilation holes 17 and the auxiliary ventilation holes 26 by the externally flowing air. This not only reduces the accumulation of heat in the stone curtain wall, making the heat release smoother and more efficient, but also can utilize the air flow in the stone curtain wall to avoid moisture accumulation and reduce the risks of mildew and corrosion, having the characteristics of good ventilation and heat dissipation and heat preservation effect.

[0036] For those skilled in the art, although several embodiments and examples of the present invention are described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the gist of the invention.

[0037] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An open stone curtain wall structure without welding, characterized in that Comprising: A stone curtain wall main body (1), the stone curtain wall main body (1) includes a stone decorative panel (11), a thermal insulation and expansion material (12), a metal cladding layer (13), a warp ventilation protrusion (14), a weft ventilation protrusion (15), a back ventilation hole (16), an edge ventilation hole (17) and a cavity (19). A cavity (19) is provided between the stone decorative panel (11) and the metal cladding layer (13), the thermal insulation and expansion material (12) is filled in the cavity (19), and the metal cladding layer (13) is provided with a warp ventilation protrusion (14), a weft ventilation protrusion (15) and a back ventilation hole (16) that are interconnected. Both ends of the warp ventilation protrusion (14) and the weft ventilation protrusion (15) are provided with edge ventilation holes (17); A first connection part (2) connected to the back ventilation hole (16), the first connection part (2) includes an L-shaped connecting piece (21), an air duct (22), an auxiliary ventilation hole (26) and a buffer cavity (27). The L-shaped connecting piece (21) is provided with a buffer cavity (27), one end of the air duct (22) is threadedly connected to the back ventilation hole (16), the other end of the air duct (22) is located in the buffer cavity (27), and the buffer cavity (27) is provided with an auxiliary ventilation hole (26); A second connection part (3) connected to the L-shaped connecting piece (21), the second connection part (3) is fixedly connected to the building surface.

2. The non-welded open stone curtain wall structure according to claim 1, characterized in that The first connection part (2) further includes a rigid core body (221) and a first spring (25). Both groups of the air ducts (22) are connected to the rigid core body (221), the rigid core body (221) is in sliding contact with the inner wall of the buffer cavity (27), and the first spring (25) is connected between the rigid core body (221) and the buffer cavity (27).

3. The non-welded open stone curtain wall structure according to claim 2, wherein The end of the L-shaped connecting piece (21) is provided with a support column (23) and a pressing protrusion (24). The two pressing protrusions (24) are symmetrically distributed with respect to the support column (23), and the length of the support column (23) is greater than the length of the pressing protrusion (24).

4. The open-type stone curtain wall structure without welding according to claim 3, characterized in that The second connection part (3) includes a base (31) and an elastic limiting member (32). The base (31) is fixedly connected to the building surface, a Z-shaped support member (311) is fixedly connected to the surface of the base (31), the L-shaped connecting piece (21) is in contact with the surface of the Z-shaped support member (311), and sliding grooves (312) are provided on the surfaces of both the base (31) and the Z-shaped support member (311). The elastic limiting member (32) is slidably connected in the sliding groove (312).

5. The non-welded open stone curtain wall structure according to claim 4, characterized in that, The elastic limiting member (32) includes a limiting plate (321), a trapezoidal protrusion (322) and a second spring (323). The limiting plate (321) is slidably connected in the sliding groove (312), the second spring (323) is connected between the two limiting plates (321), a trapezoidal protrusion (322) is provided on the surface of the limiting plate (321), the pressing protrusion (24) is in sliding contact with the surface of the trapezoidal protrusion (322), and the limiting plate (321) is in contact with the surface of the support column (23).

6. The non-welded open stone curtain wall structure according to claim 1, characterized in that A waterproof layer (18) is provided between the stone decorative panel (11) and the metal cladding layer (13); an opening (191) is provided at a position of the cavity (19) corresponding to the back vent hole (16); and the back vent hole (16), the warp vent protrusion (14), and the weft vent protrusion (15) are in the same plane.

7. The open stone curtain wall structure without welding according to claim 4, characterized in that, The auxiliary vent hole (26) is located on a side of the L-shaped connecting piece (21) close to the Z-shaped supporting piece (311).

8. Construction method of a weld-free open stone curtain wall structure, applied to the weld-free open stone curtain wall structure described in any one of claims 1-7, characterized in that, The specific steps include: S1, connecting the second connecting portion (3) to a building surface; S2, filling the heat-insulating expansion material (12) into the cavity (19) on the back of the stone decorative panel (11), consolidating the metal cladding layer (13) and the stone decorative panel (11) into a solid shape, wherein the back of the metal cladding layer (13) after forming is provided with warp ventilation protrusions (14) and weft ventilation protrusions (15) with edge ventilation holes (17) at both ends; S3. Pre-install one end of the air guide tube (22) in the buffer cavity (27) of the L-shaped connector (21), and respectively thread the two air guide tubes (22) into the back vent holes (16); S4. On the premise that the auxiliary ventilation hole (26) faces the ground, the L-shaped connecting piece (21) is fixedly connected to the second connecting portion (3).

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