An inner sealing dry-hanging stone material curtain wall structure

Abstract

The application belongs to the field of waterproof stone curtain wall, and particularly relates to an inner sealing dry hanging stone curtain wall structure. The inner sealing dry hanging stone curtain wall structure comprises a steel keel, a waterproof aluminum plate, an aluminum alloy keel, granite stone, a back bolt hanging assembly and a drainage assembly. The steel keel comprises a vertical main keel and a horizontal secondary keel, the waterproof aluminum plate is fixed on the outer side of the horizontal secondary keel and the fixed position is sealed, the aluminum alloy keel is arranged on the outer side of the steel keel and comprises an aluminum alloy pad frame and an aluminum alloy cross beam, the granite stone is arranged in multiple pieces, a gap is left between two adjacent granite stones, and the granite stone is arranged on the outer side of the aluminum alloy keel, the back bolt hanging assembly is arranged between the granite stone and the corresponding aluminum alloy pad frame and comprises a back bolt, a back bolt connecting piece and a cross beam connecting piece, and the drainage assembly comprises a drainage main pipe and a plurality of vertically arranged drainage grooves. The application is not filled with weather-resistant sealant and foam strips in the gap between the granite stones, has good water tightness and is simple and convenient to construct.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of waterproof stone curtain wall, and particularly relates to an inner sealing dry hanging stone curtain wall structure. BACKGROUND

[0002] With the development of curtain wall technology, its application is more and more widely, and people's pursuit of visual beauty and transparency is higher and higher. In the prior art, decorative stone is often used as a decorative material for curtain wall. At present, the stone dry hanging method is a commonly used way, which directly hangs the decorative stone on the wall or in the steel frame by metal hanging parts without grouting and pasting.

[0003] A stone dry hanging node is disclosed in Chinese patent application with the application publication number CN104499623A, which comprises an aluminum alloy beam, a waterproof aluminum plate arranged on the aluminum alloy beam, an aluminum alloy adapter connected to the outer side of the aluminum alloy beam, a first hook connected to the aluminum alloy adapter through a bolt, a stainless steel plate and an adjusting washer arranged between the bolt and the aluminum alloy adapter; a second hook is hung on the hook body of the lower part of the first hook, the upper part of the first hook is arranged in the hook part of a third hook, and the second hook and the third hook are respectively fixed in a first stone and a second stone; a stone special weatherproof sealant and a foam strip are arranged between the first stone and the second stone. The above-mentioned stone dry hanging node can adjust the position of the stone and reduce the installation error of the stone. However, the area of the curtain wall is usually large, and a large number of stone blocks are required. If the gap between the adjacent two stones is filled with weatherproof sealant and foam strip during construction, the construction workload is large and the construction is complicated. SUMMARY

[0004] In view of this, the purpose of the present application is to provide an inner sealing dry hanging stone curtain wall structure to solve the technical problem of complicated construction of the existing dry hanging stone curtain wall structure.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is:

[0006] An inner sealing dry hanging stone curtain wall structure comprises:

[0007] The steel keel comprises vertical main keels and horizontal secondary keels, and a plurality of vertical main keels and horizontal secondary keels are arranged. The horizontal secondary keel is fixedly connected with the corresponding vertical main keel through an angle code and a fastener. The two sides of each vertical main keel are fixedly connected with a mounting seat, and the mounting seat is used for welding connection with a pre-buried plate in the building wall body.

[0008] The waterproof aluminum plate is fixed on the outer side of the horizontal secondary keel and is sealed at the fixed position, and the waterproof aluminum plate comprises horizontal waterproof plate segments and vertical waterproof plate segments, the vertical waterproof plate segments comprise at least one guide waterproof segment and a connecting waterproof segment connected with the guide waterproof segment through fasteners, the connecting position of the guide waterproof segment and the connecting waterproof segment is sealed, the guide waterproof segment is provided with a guide portion inclined towards the outside and away from the horizontal secondary keel, and the guide portion is sealed and connected with the corresponding connecting waterproof segment;

[0009] The aluminum alloy keel is arranged on the outer side of the steel keel and comprises an aluminum alloy cushion frame and an aluminum alloy crossbeam, the aluminum alloy cushion frame is connected to the outer side of the vertical main keel, and the aluminum alloy crossbeam is connected to the outer side of the aluminum alloy cushion frame.

[0010] The granite stone is arranged in multiple pieces, a gap is arranged between adjacent two pieces of granite stone, the granite stone is arranged on the outer side of the aluminum alloy keel, and a gap is arranged between the granite stone and the aluminum alloy cushion frame to form an installation cavity.

[0011] The back bolt hanging assembly is arranged between the granite stone and the corresponding aluminum alloy cushion frame and comprises a back bolt, a back bolt connecting piece and a crossbeam connecting piece, the crossbeam connecting piece is connected with the aluminum alloy crossbeam and is adjustable in the horizontal direction, the back bolt connecting piece is buckled to the outer side of the crossbeam connecting piece and is adjustable in the vertical direction, one end of the back bolt is connected with the granite stone, and the other end of the back bolt is connected with the back bolt connecting piece.

[0012] The drainage assembly is arranged in the installation cavity and comprises a drainage main pipe and a plurality of vertically arranged drainage channels, the drainage channel is arranged below the gap between the vertically adjacent two granite stones and above the back bolt hanging assembly, the drainage channel is detachably connected with the corresponding back bolt connecting piece, each drainage channel is communicated with the drainage main pipe, and the bottom end of the drainage main pipe is used for being communicated with the drainage system of the building body.

[0013] Further, each drainage channel is a channel steel structure, and the channel bottom is arranged to be inclined downward, and the drainage main pipe is provided with a socket for being inserted with the corresponding drainage channel; a waterproof sealing gasket is attached to the channel wall of the drainage channel away from the drainage main pipe, and the waterproof sealing gasket is used for being in contact with the granite stone.

[0014] Further, the drainage channel comprises a channel body and an L-shaped plate connected to the bottom of the channel body, the horizontal plate segment of the L-shaped plate is provided with a through hole, the back bolt connecting piece is provided with a supporting plate for supporting the horizontal plate segment, and the supporting plate is provided with an adjusting long hole corresponding to the through hole; the crossbeam connecting piece is provided with a through hole corresponding to the through hole, and the drainage channel is connected with the back bolt connecting piece, the crossbeam connecting piece and the aluminum alloy crossbeam through stainless steel bolts.

[0015] Further, the supporting plate is L-shaped, and the supporting plate and the body of the back bolt connecting piece enclose a clamping groove matched with the horizontal plate segment.

[0016] Preferably, the same drainage groove is detachably connected with the back bolt connecting piece arranged in the inner side of each granite stone in the horizontal direction.

[0017] Further, the back of the aluminum alloy pad frame is provided with a U-shaped accommodating groove, the vertical main batten is clamped in the U-shaped accommodating groove, and the gap between the vertical main batten and the U-shaped accommodating groove is filled with sealant; the front of the aluminum alloy pad frame is provided with a U-shaped mounting groove and connecting grooves symmetrically arranged on both sides of the U-shaped mounting groove, the U-shaped mounting groove is provided with a connecting screw for connecting the aluminum alloy pad frame with the vertical main batten, and each connecting groove is clamped with a connecting bolt fixed with the aluminum alloy cross beam; the both sides of the aluminum alloy pad frame are further integrally formed with extension ear plates, the extension ear plates are inserted into the gap between the waterproof aluminum plate and the horizontal secondary batten and connected with the waterproof aluminum plate and the horizontal secondary batten through fastening screws, and the gap between the waterproof aluminum plate and the horizontal secondary batten is further provided with waterproof sealing pads arranged at intervals.

[0018] Further, the cross beam connecting piece comprises a horizontal connecting arm and a C-shaped hanging body located outside the horizontal connecting arm, and the top surface of the horizontal connecting arm is a sawtooth surface; the aluminum alloy cross beam is a C-shaped beam, the C-shaped beam is provided with a sealing groove and a reverse T-shaped sliding groove in communication, the sealing groove is provided with a waterproof pad, the screw head of the stainless steel bolt is located in the reverse T-shaped sliding groove, the screw rod of the stainless steel bolt penetrates through the waterproof pad and the horizontal connecting arm, the penetrating part is sleeved with a gasket, and the part of the screw rod above the gasket is threadedly connected with a locking nut.

[0019] Further, the bottom of the back bolt connecting piece is inserted into the C-shaped hanging body, the top of the back bolt connecting piece is buckled outside the top of the C-shaped hanging body, the top of the back bolt connecting piece is connected with an adjusting bolt, the bottom surface of the adjusting bolt is supported on the top surface of the C-shaped hanging body, and the height of the top surface of the back bolt connecting piece is adjusted.

[0020] Further, the inner side of each granite stone arranged in the vertical direction is provided with at least two groups of back bolt hanging assembly, the stone anti-falling draw wire is connected with the aluminum alloy pad frame through the back bolt at least at the position between two adjacent groups of back bolt hanging assembly.

[0021] Preferably, the guide waterproof section of the vertical waterproof plate section located at the lowermost position of the waterproof aluminum plate has a gap with the granite stone located at the lowermost position, and the gap forms a drainage channel.

[0022] The inner sealing dry hanging stone curtain wall structure has the following advantages:

[0023] 1. The gap between the adjacent granite stone materials of the present application does not need to be filled with weather-resistant sealant and foam strips, only waterproof aluminum plates are arranged on the inner side of the granite stone materials, the connecting positions between the waterproof aluminum plates and the horizontal secondary keel and the aluminum alloy beam are sealed, inclined waterproof guide sections are arranged on the waterproof aluminum plates, good sealing and waterproof effects are achieved, the back bolt hanging assembly on the inner side of the granite stone materials is not directly connected to the horizontal secondary keel fixed with the waterproof aluminum plate, the waterproof sealant of the waterproof aluminum plate is prevented from being cracked due to external force during the installation of the granite stone materials, the whole curtain wall system has good water tightness although the gap between the adjacent granite stone materials is not filled with weather-resistant sealant and foam strips, the construction process is reduced, and the construction efficiency is improved.

[0024] 2. The drainage assembly is arranged in the installation cavity on the inner side of the granite stone materials, in case of rainy days, even if rainwater can enter the installation cavity from the gap between the adjacent granite stone materials, the rainwater can also enter the drainage groove, is led out of the drainage groove and is led to the drainage main pipe, the back bolt connecting assembly and the aluminum alloy keel are prevented from being eroded by rainwater, and good protection is formed on the back bolt connecting assembly and the aluminum alloy keel.

[0025] 3. The back bolt connecting piece and the beam connecting piece can simultaneously serve as the fixed support points of the drainage groove, the fixation of the granite stone materials and the fixation of the drainage groove are both ensured.

[0026] 4. The position of the granite stone materials can be adjusted during construction, construction deviation is reduced, and the quality of construction is ensured. DRAWINGS

[0027] Figure 1 is a horizontal cross-sectional node schematic diagram of the inner sealing dry hanging stone material curtain wall structure of the present application;

[0028] Figure 2 is a longitudinal section schematic diagram of the inner sealing dry hanging stone material curtain wall structure of the present application;

[0029] Figure 3 is a detail schematic diagram in Figure 1

[0030] Figure 4 is a structure schematic diagram of an aluminum alloy pad frame in the inner sealing dry hanging stone material curtain wall structure of the present application;

[0031] Figure 5 is a node detail view in Figure 2

[0032] Figure 6 is a structure schematic diagram of a position where the waterproof aluminum plate and the stone anti-falling draw steel wire rope are shown in the inner sealing dry hanging stone material curtain wall structure of the present application;

[0033] Figure 7 ​​is a schematic view of the relationship between the bottom granite stone and the waterproof aluminum plate in the inner sealing dry hanging stone curtain wall structure of the present application;

[0034] Figure 8 is Figure 5 is a schematic view of the assembled middle back bolt connecting piece and beam connecting piece;

[0035] Figure 9 is Figure 5 is a structural schematic view of the aluminum alloy beam.

[0036] Mark explanation: 1-vertical main keel, 2-horizontal secondary keel, 3-waterproof aluminum plate, 4-guiding waterproof section, 5-connecting waterproof section, 6-aluminum alloy frame, 7-aluminum alloy beam, 8-mounting seat, 9-building wall, 10-embedded plate, 11-back bolt, 12-back bolt connecting piece, 13-beam connecting piece, 14-granite stone, 15-drainage groove, 16-L-shaped plate, 17-waterproof sealing gasket, 18-supporting plate, 19-stainless steel bolt, 20-U-shaped mounting groove, 21-connecting groove, 22-connecting screw, 23-extended ear plate, 24-tightening screw, 25-C-shaped hanging body, 26-horizontal connecting arm, 27-inverted T-shaped sliding groove, 28-adjusting bolt, 30-stone anti-falling stay wire rope, 31-drainage channel, 32-U-shaped accommodating groove, 33-connecting bolt, 34-sealing groove, 35-waterproof pad, 36-gasket, 37-drainage main pipe, 38-supporting keel. DETAILED DESCRIPTION

[0037] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0038] Specific embodiments of the inner sealing dry hanging stone curtain wall structure of the present application:

[0039] As shown in Figure 1 and Figure 2 , the inner sealing dry hanging stone curtain wall structure comprises steel keel, waterproof aluminum plate 3, aluminum alloy keel, granite stone 14, back bolt hanging assembly and drainage assembly.

[0040] Specifically, as shown in Figure 1 and Figure 2 , the steel keel comprises vertical main keel 1 and horizontal secondary keel 2, and multiple vertical main keels 1 and horizontal secondary keels 2 are provided. The vertical main keel 1 is a hot-dip galvanized square tube, and the horizontal secondary keel 2 is an angle steel. The horizontal secondary keel 2 is fixedly connected with the corresponding vertical main keel 1 through an angle code and a bolt fastener. Each vertical main keel 1 is fixedly connected with a mounting seat 8 on both sides, and the mounting seat 8 is also an angle steel. The vertical main keel 1 is clamped between the two mounting seats 8 and connected through a long bolt. One end of the mounting seat 8 is welded and connected with the embedded plate 10 in the building wall 9 to fix the steel keel on the building wall 9. In addition, as shown inFigure 2 As shown, the steel keel is also connected to the building wall 9 by multiple supporting keels 38.

[0041] like Figure 2 and Figure 6 As shown, the waterproof aluminum plate 3 is fixed to the outside of the horizontal secondary keel 2 and the fixed position is sealed. The waterproof aluminum plate 3 includes a horizontal waterproof plate segment and a vertical waterproof plate segment. The vertical waterproof plate segment includes at least one guiding waterproof section 4 and a connecting waterproof section 5 connected to the guiding waterproof section 4 by fasteners. The connection between the guiding waterproof section 4 and the connecting waterproof section 5 is sealed. The guiding waterproof section 4 has a guiding part that faces away from the horizontal secondary keel 2 and is inclined outward. The tail end of the guiding part is sealed to the corresponding connecting waterproof section 5 with sealant. It should be noted that the vertical direction mentioned in this embodiment not only refers to the vertical direction, but also includes the inclined direction that forms a certain angle with the vertical plane, such as... Figure 2 A section of the tilted position.

[0042] The aluminum alloy keel is set on the outside of the steel keel, including an aluminum alloy pad frame 6 and an aluminum alloy crossbeam 7. The aluminum alloy pad frame 6 is connected to the outside of the vertical main keel 1, and the aluminum alloy crossbeam 7 is connected to the outside of the aluminum alloy pad frame 6. Figure 1 and Figure 4 As shown, the back of the aluminum alloy pad frame 6 is provided with a U-shaped receiving groove 32, in which the vertical main keel 1 is inserted, and the gap between the vertical main keel 1 and the U-shaped receiving groove 32 is filled with sealant. The front of the aluminum alloy pad frame 6 is provided with a U-shaped mounting groove 20 and connecting grooves 21 symmetrically arranged on both sides of the U-shaped mounting groove 20. Connecting screws 22 connecting the aluminum alloy pad frame 6 to the vertical main keel 1 are provided in the U-shaped mounting groove 20, and connecting bolts 33 for fixing to the aluminum alloy crossbeam 7 are inserted in each connecting groove 21. Extended ear plates 23 are also integrally formed on both sides of the aluminum alloy pad frame 6, such as... Figure 3 As shown, the extension ear plate 23 is inserted into the gap between the waterproof aluminum plate 3 and the horizontal secondary keel 2 and connected to the waterproof aluminum plate 3 and the horizontal secondary keel 2 by fastening screws 24. Multiple waterproof sealing gaskets 17 are also provided at intervals in the gap between the waterproof aluminum plate 3 and the horizontal secondary keel 2. These waterproof sealing gaskets 17 are connected to the waterproof aluminum plate 3 and the horizontal secondary keel 2 by threaded fasteners.

[0043] like Figure 1 and Figure 2 As shown, multiple granite stones 14 are provided, with a predetermined gap between adjacent granite stones 14. They are installed on the outside of the aluminum alloy keel, and a predetermined distance is maintained between each granite stone 14 and the aluminum alloy frame 6 to form an installation cavity. Figure 7 As shown, there is a gap between the guide waterproof section 4 of the bottom vertical waterproof section of the waterproof aluminum plate 3 and the bottom granite stone 14, which forms a drainage channel 31.

[0044] The back bolt hanging assembly is arranged between the granite stone 14 and the corresponding aluminum alloy pad frame 6, and comprises a back bolt 11, a back bolt connecting piece 12 and a beam connecting piece 13. The beam connecting piece 13 is connected with the aluminum alloy beam 7 and is adjustable in the horizontal direction, the back bolt connecting piece 12 is buckled outside the beam connecting piece 13 and is adjustable in the vertical direction, one end of the back bolt 11 is connected with the granite stone 14, and the other end is connected with the back bolt connecting piece 12.

[0045] Specifically, as shown in Figure 5 and Figure 8 , the beam connecting piece 13 comprises a horizontal connecting arm 26 and a C-shaped hanging body 25 located outside the horizontal connecting arm 26, and the top surface of the horizontal connecting arm 26 is a sawtooth surface. As shown in Figure 9 , the aluminum alloy beam 7 is a C-shaped beam, and the C-shaped beam is provided with a sealing groove 34 and a reverse T-shaped sliding groove 27 in communication, and the sealing groove 34 is provided with a waterproof pad 35. The horizontal connecting arm 26 is pressed above the waterproof pad 35 and is connected with the aluminum alloy beam 7 through a stainless steel bolt 19, wherein the bolt head of the stainless steel bolt 19 is located in the reverse T-shaped sliding groove 27, the screw rod of the stainless steel bolt 19 penetrates through the waterproof pad 35 and the horizontal connecting arm 26, and the part of the screw rod penetrating out is sleeved with a gasket 36, and the part of the screw rod above the gasket 36 is threadedly connected with a locking nut. The bottom of the back bolt connecting piece 12 is inserted into the C-shaped hanging body 25, and the top of the back bolt connecting piece 12 is buckled outside the top of the C-shaped hanging body 25. The top of the back bolt connecting piece is connected with an adjusting bolt 28, the bottom surface of the adjusting bolt 28 is supported on the top surface of the C-shaped hanging body 25, and the height of the top surface of the back bolt connecting piece 12 is adjusted.

[0046] In addition, as shown in Figure 2 and Figure 6 , the inner side of each granite stone 14 arranged in the vertical direction is provided with two groups of back bolt hanging assemblies. The inner side of the granite stone in the inclined direction is connected with a stone anti-falling wire rope 30 through the back bolt 11 at the position between the two adjacent back bolt hanging assemblies, the other end of the stone anti-falling wire rope 30 is connected with the aluminum alloy pad frame 6, and the fixed firmness of the granite stone 14 is further ensured.

[0047] The present application is further waterproof, and a drainage assembly is arranged in the installation cavity between each granite stone 14 and the aluminum alloy pad frame 6. The drainage assembly comprises a drainage main pipe 37 and a plurality of vertically arranged drainage grooves 15, the drainage groove 15 is arranged below the gap between the two vertically adjacent granite stones 14 and above the back bolt hanging assembly, each drainage groove 15 is communicated with the drainage main pipe 37, and the bottom end of the drainage main pipe 37 is used for being communicated with the drainage system of the building body. As shown in Figure 5As shown, each drainage groove 15 is a channel steel structure, and the groove bottom is arranged downwardly inclined, and the drainage main pipe 37 is provided with a socket for plugging the corresponding drainage groove 15. The drainage groove 15 comprises a groove body and an L-shaped plate 16 connected to the bottom of the groove body, and a waterproof sealing gasket 17 is pasted on the groove wall of the groove body away from the drainage main pipe 37, which is used to contact with the granite stone 14. The horizontal plate segment of the L-shaped plate 16 is provided with a through hole, the back bolt connecting piece 12 is provided with a support plate 18 for supporting the horizontal plate segment, the support plate 18 is provided with an adjusting long hole corresponding to the through hole, the support plate 18 is L-shaped, and the support plate 18 and the body of the back bolt connecting piece 12 form a clamping groove matched with the horizontal plate segment. The horizontal connecting arm 26 is provided with a through hole corresponding to the through hole, and the screw rod of the above-mentioned stainless steel bolt 19 passes through the support plate 18 and the horizontal plate segment at the same time, and the threaded connection of the part of the screw rod out of the through hole is provided with a fastening nut, so as to connect the drainage groove 15 with the back bolt connecting piece 12, the cross beam connecting piece 13 and the aluminum alloy cross beam 7.

[0048] In the embodiment, the same drainage groove 15 has a relatively long length, and the bottom thereof is provided with a plurality of L-shaped plates 16 at intervals, and each L-shaped plate 16 is connected with the back bolt connecting piece 12 and the cross beam connecting piece 13 of each granite stone 14 arranged in the horizontal direction at the same time.

[0049] In the inner sealing dry hanging stone curtain wall structure of the present application, the gap between the adjacent granite stones does not need to be filled with weather-resistant sealing glue and foam strips, only the waterproof aluminum plate is arranged on the inner side of the granite stone, the connection positions between the waterproof aluminum plate and the horizontal secondary batten and the aluminum alloy cross beam are sealed, and the inclined waterproof guide section is arranged on the waterproof aluminum plate, which has good sealing and waterproof effect, and the back bolt hanging assembly on the inner side of the granite stone is not directly connected to the horizontal secondary batten fixed with the waterproof aluminum plate, which avoids the cracking of the waterproof sealing glue of the waterproof aluminum plate due to external force during the installation of the granite stone, so that the whole curtain wall system has good water tightness although the gap between the adjacent granite stones is not filled with weather-resistant sealing glue and foam strips, the construction process is reduced, and the construction efficiency is improved. The drainage assembly is arranged in the installation cavity on the inner side of the granite stone, and even if the rainwater can enter the installation cavity from the gap between the adjacent granite stones in rainy days, it will enter the drainage groove, and then be drained to the drainage main pipe, so as to avoid the erosion of the back bolt connecting assembly and the aluminum alloy batten by the rainwater, and form good protection for the back bolt connecting assembly and the aluminum alloy batten.

[0050] The above-mentioned embodiments of the present application do not constitute a limitation on the protection scope of the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. An interiorly sealed dry-hung stone curtain wall structure, characterized in that, The application relates to a building wall body, which comprises the following components: steel keels, including vertical main keels and horizontal secondary keels, the vertical main keels and the horizontal secondary keels are provided with a plurality of the vertical main keels and the horizontal secondary keels, the horizontal secondary keels are fixedly connected with the corresponding vertical main keels through angle codes and fasteners, and both sides of each vertical main keel are fixedly connected with mounting seats which are used for being welded with pre-buried plates in a building wall body; waterproof aluminum plates which are fixed on the outer sides of the horizontal secondary keels and are sealed at fixed positions, the waterproof aluminum plates comprise horizontal waterproof plate segments and vertical waterproof plate segments, the vertical waterproof plate segments comprise at least one guide waterproof segment and a connecting waterproof segment which is correspondingly connected with the guide waterproof segment through fasteners, the connecting position of the guide waterproof segment and the connecting waterproof segment is sealed, the guide waterproof segment is provided with a guide part which is inclined towards the outside and away from the horizontal secondary keels, and the guide part is sealingly connected with the corresponding connecting waterproof segment; aluminum alloy keels which are arranged on the outer sides of the steel keels and comprise aluminum alloy cushion frames and aluminum alloy crossbeams, the aluminum alloy cushion frames are connected on the outer sides of the vertical main keels, and the aluminum alloy crossbeams are connected on the outer sides of the aluminum alloy cushion frames; granite stone materials which are arranged in a plurality of pieces, the gap between two adjacent granite stone materials is set, the granite stone materials are arranged on the outer sides of the aluminum alloy keels, and the gap between each granite stone material and the aluminum alloy cushion frame is set to form an installation cavity; back-bolt hanging assembly which is arranged between the granite stone material and the corresponding aluminum alloy cushion frame and comprises a back bolt, a back-bolt connecting piece and a crossbeam connecting piece, the crossbeam connecting piece is connected with the aluminum alloy crossbeam and is adjustable in the horizontal direction, the back-bolt connecting piece is buckled on the outer side of the crossbeam connecting piece and is adjustable in the vertical direction, one end of the back bolt is connected with the granite stone material, and the other end of the back bolt is connected with the back-bolt connecting piece; and a drainage assembly which is arranged in the installation cavity and comprises a drainage main pipe and a plurality of vertically-arranged drainage grooves, the drainage grooves are arranged below the gap between two vertically-adjacent granite stone materials and above the back-bolt hanging assembly, the drainage grooves are detachably connected with the corresponding back-bolt connecting pieces, each drainage groove is communicated with the drainage main pipe, and the bottom end of the drainage main pipe is used for being communicated with a drainage system of a building body. Each drainage groove is a channel steel structure, the groove bottom is arranged in a downward and inclined mode, the drainage main pipe is provided with a socket which is inserted with the corresponding drainage groove; a waterproof sealing gasket is pasted on the groove wall of the drainage groove which is away from the drainage main pipe, and the waterproof sealing gasket is used for being contacted with the granite stone material. The drainage groove comprises a groove body and an L-shaped plate which is connected with the bottom of the groove body, the horizontal plate segment of the L-shaped plate is provided with a through hole, the back-bolt connecting piece is provided with a supporting plate which is used for supporting the horizontal plate segment and is provided with an adjusting long hole which is corresponded with the through hole; the crossbeam connecting piece is provided with a through hole which is corresponded with the through hole, and the drainage groove is connected with the back-bolt connecting piece, the crossbeam connecting piece and the aluminum alloy crossbeam through stainless steel bolts. The supporting plate is L-shaped, the supporting plate and the body of the back-bolt connecting piece enclose a clamping groove which is matched with the horizontal plate segment. Each drainage groove is detachably connected with the back-bolt connecting pieces in each granite stone material which are arranged in the horizontal direction. ​ ​ 2. The interiorly sealed dry-hung stone curtain wall structure of claim 1, wherein, ​ 3. The interiorly sealed dry-hung stone curtain wall structure of claim 2, wherein, ​ 4. The interiorly sealed dry-hung stone curtain wall structure of claim 3, wherein, ​ 5. The inner sealed dry-hung stone curtain wall structure according to any one of claims 1-4, characterized in that, ​ 6. The interiorly sealed dry-hung stone curtain wall structure of either of claims 3 or 4, wherein, The back surface of the aluminum alloy pad frame is provided with a U-shaped accommodating groove, the vertical main keel is clamped in the U-shaped accommodating groove, and the gap between the vertical main keel and the U-shaped accommodating groove is filled with sealant; the front surface of the aluminum alloy pad frame is provided with a U-shaped mounting groove and a connecting groove symmetrically arranged on both sides of the U-shaped mounting groove, the U-shaped mounting groove is provided with a connecting screw for connecting the aluminum alloy pad frame and the vertical main keel, and each connecting groove is clamped with a connecting bolt fixed with the aluminum alloy cross beam; the two sides of the aluminum alloy pad frame are also integrally formed with extension ear plates, the extension ear plates are inserted into the gap between the waterproof aluminum plate and the horizontal secondary keel and connected with the waterproof aluminum plate and the horizontal secondary keel through fastening screws; the gap between the waterproof aluminum plate and the horizontal secondary keel is also provided with waterproof sealing pads arranged at intervals.

7. The interiorly sealed dry-hung stone curtain wall structure of claim 5, wherein, The cross beam connector comprises a horizontal connecting arm and a C-shaped hanging body located outside the horizontal connecting arm, and the top surface of the horizontal connecting arm is a sawtooth surface; the aluminum alloy cross beam is a C-shaped beam, the C-shaped beam is provided with a sealing groove and a reverse T-shaped sliding groove in communication, the sealing groove is provided with a waterproof pad, the bolt head of the stainless steel bolt is located in the reverse T-shaped sliding groove, the screw rod of the stainless steel bolt passes through the waterproof pad and the horizontal connecting arm, and the part of the screw rod that penetrates out is sleeved with a gasket, and the part of the screw rod above the gasket is threadedly connected with a locking nut.

8. The interiorly sealed dry-hung stone curtain wall structure of claim 7, wherein, The bottom of the back bolt connector is inserted into the C-shaped hanging body, the top of the back bolt connector is buckled outside the top of the C-shaped hanging body, the top of the back bolt connector is connected with an adjusting bolt, the bottom surface of the adjusting bolt is supported on the top surface of the C-shaped hanging body, and the height of the top surface of the back bolt connector is adjusted.

9. The interiorly sealed dry-hung stone curtain wall structure according to any one of claims 1-4, wherein, The inner side of each granite stone arranged in the vertical direction is provided with at least two groups of back bolt hanging assembly, the granite stone is connected with a stone anti-falling draw steel wire rope through back bolts at least at the position between two adjacent groups of back bolt hanging assemblies, and the other end of the stone anti-falling draw steel wire rope is connected with the aluminum alloy pad frame.

10. The interiorly sealed dry-hung stone curtain wall structure according to any one of claims 1-4, wherein, The guide waterproof section of the vertical waterproof plate section of the waterproof aluminum plate at the lowermost position has a gap with the granite stone at the lowermost position, and the gap forms a drainage channel.

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