A dry hanging stone material installation structure

Abstract

The utility model relates to building outer wall dry hanging installation structure technical field especially, it relates to a kind of dry hanging stone installation structure. Including the stone board for dry hanging, angle steel being installed in the stone board installation surface four edge corners by expansion screw and galvanized square steel being fixedly installed on wall, it solves the problem that the stone lower frame bearing force is greater and hanging stability faces challenge after dry hanging stone board stacking installation, by the insertion installation of stone board cooperation angle steel, galvanized square steel and mounting block, realize the overall stress uniformity of dry hanging stone board after installation, the effect of stable structure.

Description

Technical Field

[0001] This utility model relates to the technical field of dry-hanging installation structure for building exterior walls, and in particular to a dry-hanging stone installation structure. Background Technology

[0002] In the field of modern architectural decoration, dry-hanging stone technology is widely used in exterior walls, interior walls, and curtain walls because it effectively avoids the risks of hollowing and falling off of stone slabs in traditional wet-laying processes. It also offers advantages such as convenient construction, long-lasting decorative effects, and low maintenance costs. The core of this technology is to indirectly fix stone slabs to building walls through a detachable mechanical connection structure. Its typical components usually include the stone slabs to be installed, connectors for connecting the stone slabs, and base support components fixed to the wall.

[0003] Currently, Chinese patent number 202420502262.7 discloses a dry-hanging stone installation structure for decorative engineering. Although it simplifies the fastening operation when hanging stone slabs, in actual use, there is still a problem that the stress point of the stone upper frame is located on the installation structure of the stone lower frame. As a result, the load-bearing capacity of the lower stone frame increases as it goes down, thus posing a challenge to the stability of the installation.

[0004] Therefore, there is an urgent need for a dry-hanging stone installation structure that can enhance the stability of dry-hanging stone. Utility Model Content

[0005] Therefore, to address the aforementioned problems, this utility model proposes a dry-hanging stone installation structure. It solves the technical problem that the stress point of the stone cladding is located on the installation structure of the lower stone cladding, resulting in a greater load-bearing capacity for the lower stone cladding and poor installation stability due to the stacking effect.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a stone slab for dry hanging, angle steel installed at the four corners of the stone slab mounting surface by expansion screws, and galvanized square steel fixedly installed on the wall. The angle steel and galvanized square steel are installed by interlocking. The galvanized square steel is a hollow steel component with a rectangular cavity inside. The galvanized square steel includes a mounting block filled inside, screws for connecting the mounting block and the galvanized square steel, rectangular through slots symmetrically opened on the surface of the mounting block and adapted to the angle steel, threaded holes penetrating the upper and lower surfaces of the galvanized square steel, double-ended bolts for passing through the threaded holes, and an interlocking opening corresponding to the angle steel on the side of the galvanized square steel facing the stone slab mounting surface. The angle steel installed on the back of the stone slab extends into the rectangular through slot through the interlocking opening.

[0007] Furthermore, the mounting block and the threaded hole are respectively provided with coaxial holes for the double-ended bolts at the positions corresponding to the threaded holes, and the inner diameter of the holes is clearance-fitted with the outer diameter of the double-ended bolts, with a clearance of 0.2 to 0.5 mm.

[0008] Furthermore, the outer surface of the mounting block is galvanized with a zinc coating thickness ≥85μm. The mounting block is a low-carbon steel cuboid block that is interference-fitted with the rectangular cavity inside the galvanized square steel. Each mounting block is fixed to the galvanized square steel on both the top and bottom by at least two screws symmetrically arranged along the width direction of the galvanized square steel. Through the above structure, the low-carbon steel cuboid block combines toughness and strength, and can withstand the long-term load of the stone slab without easily breaking. The interference fit with the cavity of the galvanized square steel eliminates the gap between the mounting block and the square steel, preventing the mounting block from shaking in the cavity and ensuring positioning accuracy.

[0009] Furthermore, both ends of the double-ended bolts are threaded with anti-loosening nuts to improve the stability of the overall installation structure of the angle steel and galvanized square steel.

[0010] Furthermore, the mounting blocks are collinear with the central axes of the corresponding angle steels, and the spacing between two adjacent mounting blocks is consistent with the spacing between two adjacent angle steels of the stone slab.

[0011] Furthermore, each of the angle steels is fixed to the stone slab by stainless steel expansion bolts arranged along its length, and the contact surface between the angle steel and the stone slab is provided with an epoxy anti-corrosion coating with a thickness of 50-100μm.

[0012] Furthermore, the spacing between two adjacent mounting blocks within the galvanized square steel is equal to the spacing between two adjacent angle steels on the stone slab, with a deviation not exceeding ±1mm.

[0013] Furthermore, the galvanized square steel is installed on the wall using conventional technical means.

[0014] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0015] This utility model discloses a dry-hanging stone installation structure. The installation block and galvanized square steel adopt a dual connection method of "interference fit + screw fixation" to eliminate the swaying gap of the installation block in the cavity of the square steel. At the same time, double-headed bolts penetrate through the galvanized square steel, the installation block and the angle steel to form a three-dimensional fixed structure, which further disperses the load. This improves the traditional method of dry-hanging stone panels where the upper and lower dry-hanging stone panels are superimposed on the force, causing the dry-hanging stone to bear its own weight and external wind pressure for a long time, resulting in risks such as stone hollowing and falling off.

[0016] By inserting angle steel, galvanized square steel and mounting blocks, and then locking them in place with anti-loosening nuts, gaps are eliminated, ensuring that the structure does not shift after installation, thus reducing the cost of later adjustments and rework. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the dry-hanging stone installation structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the mounting surface structure of the stone slab of this utility model;

[0019] Figure 3 This is a schematic diagram showing the disassembled structure of the stone slab and galvanized square steel of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the galvanized square steel of this utility model;

[0021] In the diagram: Stone slab-1, Angle steel-2, Galvanized square steel-3, Mounting block-31, Screw-32, Rectangular through groove-33, Threaded hole-34, Double-ended bolt-35, Insertion port-36. Detailed Implementation

[0022] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0023] refer to Figure 1 - Figure 4 This embodiment provides a dry-hanging stone installation structure, which includes a stone slab 1 for dry hanging, angle steel 2 installed at the four corners of the stone slab 1 mounting surface by expansion screws, and galvanized square steel 3 fixedly installed on the wall. The angle steel 2 and galvanized square steel 3 are installed by interlocking. The galvanized square steel 3 is a hollow steel component with a rectangular cavity inside. The galvanized square steel 3 includes a mounting block 31 filled inside, screws 32 for connecting the mounting block 31 and the galvanized square steel 3, rectangular through grooves 33 symmetrically opened on the surface of the mounting block 31 and adapted to the angle steel 2, threaded holes 34 through the upper and lower surfaces of the galvanized square steel 3, double-ended bolts 35 for passing through the threaded holes 34, and an interlocking opening 36 corresponding to the angle steel 2 on the side of the galvanized square steel 3 facing the stone slab 1 mounting surface. The angle steel 2 installed on the back of the stone slab 1 extends into the rectangular through groove 33 through the interlocking opening 36.

[0024] This installation structure is primarily suitable for granite slabs with a strength grade ≥ MU100 (such as Sesame White G603). The installation surface (back) of the stone slab 1 must be polished, and the surface flatness deviation must be ≤ 0.5 mm / m to avoid uneven stress during the installation of the angle steel 2.

[0025] This structure mainly includes angle steel 2 for dry-hanging stone installation and galvanized square steel 3 for cooperating with the angle steel 2 for installation. Each stone slab 1 has four angle steel 2 installed on its back side. The four angle steel 2 are installed at the four corners of the back side of the stone slab 1. The insertion ends of the angle steel 2 in the upper and lower parts are arranged opposite each other. The insertion ends of the angle steel 2 in the upper stone slab 1 and the angle steel 2 in the lower stone slab 1 are arranged symmetrically. By pre-installing the installation block 31 inside the galvanized square steel 3, the insertion end of the angle steel 2 can pass through the interlocking buckle 36 and enter the rectangular through groove 33, thereby achieving the stability of the stone installation and preventing concentrated stress during installation.

[0026] It should be noted that the installation of mounting block 31 and galvanized square steel 3 adopts a pre-assembly positioning + on-site double fixing method. The initial positioning and interference fit of mounting block 31 and galvanized square steel 3 are completed in the factory to avoid dimensional deviations caused by on-site processing. After the galvanized square steel 3 is fixed to the wall base, the mounting block 31 is finally fixed by screws 32 to ensure that the position of the mounting block is precisely aligned with the angle steel 2, solving the problem of "inability to adjust after pre-embedding". In actual operation, the installation of mounting block 31 and galvanized square steel 3 can also be selected according to the actual situation, as long as the installation method adopted meets the requirements of interference fit + screw fixing, thereby ensuring the connection stability and positioning accuracy between mounting block 31 and galvanized square steel 3.

[0027] The mounting block 31 and the threaded hole 34 are respectively provided with coaxial holes for the double-ended bolt 35 to pass through at the positions where they correspond and the angle steel 2 is inserted into the galvanized square steel 3. The inner diameter of the hole is clearance-fitted with the outer diameter of the double-ended bolt 35, with a clearance of 0.2 to 0.5 mm. This enhances the overall connection stability after the double-ended bolt 35 passes through the threaded hole 34 of the galvanized square steel, the hole of the mounting block 31, and the hole of the angle steel 2 in sequence.

[0028] The outer surface of the mounting block 31 is galvanized with a zinc coating thickness of ≥85μm. The mounting block 31 is a low-carbon steel cuboid block that is interference-fitted with the rectangular cavity inside the galvanized square steel 3. Each mounting block 31 is fixed to the galvanized square steel 3 by at least two screws 32 symmetrically arranged along the width direction of the galvanized square steel 3 on both the top and bottom. Through the above structure, the low-carbon steel cuboid block has both toughness and strength, and can withstand the long-term load of the stone slab without easily breaking. The interference fit with the cavity of the galvanized square steel eliminates the gap between the mounting block and the square steel, preventing the mounting block from shaking in the cavity and ensuring positioning accuracy. Each mounting block 31 has two or more screws 32 arranged on the top and bottom. The number of mounting screws 32 can be selected according to the actual application, thereby effectively preventing the displacement of the mounting block 31.

[0029] Since the central axis of the mounting block 31 is collinear with that of the corresponding angle steel 2, and the spacing between two adjacent mounting blocks 31 is consistent with the spacing between two adjacent angle steels 2 of the stone slab 1, when fixing the angle steel 2 on the back of the stone slab 1, a positioning fixture is used to ensure that the central axis of the angle steel is parallel to the diagonal of the stone slab, with a deviation of ≤0.1mm. During installation, a laser rangefinder is used to assist in accurately aligning the axis of the angle steel with the axis of the mounting block. The spacing between two adjacent mounting blocks 31 within the galvanized square steel 3 is set according to the actual size of the stone slab (consistent with the spacing between two adjacent angle steels 2 of the stone slab 1). A steel ruler (accuracy 0.5mm) is used for measurement, and the deviation does not exceed ±1mm. In actual construction, it can be controlled within ±0.3mm, ensuring that when each stone slab is installed, the four angle steels can be simultaneously and accurately inserted into the rectangular through slot of the corresponding mounting block without any misalignment.

[0030] Each angle steel 2 is fixed to the stone slab 1 by stainless steel expansion bolts arranged along its length. An epoxy anti-corrosion coating is applied to the contact surface between the angle steel 2 and the stone slab 1, with a coating thickness of 50-100μm. Specifically, the angle steel 2 is made of Q235 low-carbon steel equal-sided angle steel. The side in contact with the stone slab 1 is crucial for achieving metal corrosion resistance, stone compatibility, and strong adhesion. To meet these requirements, in addition to using epoxy zinc-rich primer for pre-coating, inorganic zinc-rich primer, polyurethane topcoat, or other materials can be selected depending on the installation environment, corrosion resistance level, and construction conditions. The coating thickness is preferably controlled at 70μm, and the coating curing time is ≥24h (at 25℃).

[0031] Meanwhile, the spacing between two adjacent mounting blocks 31 within the galvanized square steel 3 is equal to the spacing between two adjacent angle steels 2 on the stone slab 1, with a deviation not exceeding ±1mm.

[0032] In this process, flat washers and spring washers are inserted at both ends of the double-ended bolt 35, and then anti-loosening nuts are screwed in to fix the stone slab, thereby improving the stability of the overall installation structure of the angle steel 2 and the galvanized square steel 3.

[0033] Galvanized square steel 3 can be installed on the wall using conventional technical means. This can be done by placing the galvanized square steel close to the wall and using connectors such as L-shaped corner brackets and U-shaped slots (the connectors are usually welded or bolted to the square steel) to lock the connectors with expansion bolts / chemical anchors, thus achieving a rigid connection between the square steel and the wall. Alternatively, it can be fixed by welding with pre-embedded parts, depending on the actual work requirements.

[0034] The working principle of this utility model is as follows:

[0035] In the factory, galvanized mounting blocks 31 (galvanized layer ≥85μm) are press-fitted into the rectangular cavity inside galvanized square steel 3 with an interference fit. After initial positioning, they are not fixed immediately. On-site, galvanized square steel 3 is fixed to the wall substrate using L-shaped corner brackets and expansion bolts. During operation, a laser rangefinder is used to calibrate and ensure that the spacing of mounting blocks 31 matches the spacing of angle steel 2 on the stone slab 1 (deviation ≤±1mm). After calibration, mounting blocks 31 are fixed inside the galvanized square steel 3 using screws 32 (≥2 screws per mounting block). The four corners of the stone slab 1... Angle steel 2 (with a 50-100μm epoxy anti-corrosion coating on the contact surface) is installed using stainless steel expansion screws. Angle steel 2 is then passed through the insertion port 36 of galvanized square steel 3 and inserted into the rectangular through slot 33 of the mounting block 31. After angle steel 2, galvanized square steel 3, and mounting block 31 are properly interlocked, double-ended bolts 35 are used to pass through the threaded holes of galvanized square steel 3 and the coaxial holes of mounting block 31 and angle steel 2 (with a gap of 0.2-0.5mm). Anti-loosening nuts are then tightened at both ends to lock the single stone piece, thus completing the fixing of the stone piece. Subsequent stone slabs are then installed in batches.

[0036] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A dry-hanging stone installation structure, comprising a stone slab (1) for dry hanging, angle steel (2) installed at the four corners of the mounting surface of the stone slab (1) by expansion screws, and galvanized square steel (3) fixedly installed on the wall, wherein, The angle steel (2) and the galvanized square steel (3) are installed by interlocking. The galvanized square steel (3) is a hollow steel component with a rectangular cavity inside. The galvanized square steel (3) includes an installation block (31) filled inside it, screws (32) for connecting the installation block (31) and the galvanized square steel (3), rectangular through slots (33) symmetrically opened on the surface of the installation block (31) and adapted to the angle steel (2), threaded holes (34) through the upper and lower surfaces of the galvanized square steel (3), double-ended bolts (35) for passing through the threaded holes (34), and an interlocking opening (36) corresponding to the angle steel (2) on the side of the galvanized square steel (3) facing the mounting surface of the stone slab (1). The angle steel (2) installed on the back of the stone slab (1) extends into the rectangular through slot (33) through the interlocking opening (36).

2. The dry-mounted stone installation structure according to claim 1, characterized by: The mounting block (31) and the threaded hole (34) are respectively provided with a coaxial hole through which the double-ended bolt (35) passes, and the angle steel (2) is inserted into the galvanized square steel (3). The inner diameter of the hole is clearance-fitted with the outer diameter of the double-ended bolt (35) with a clearance of 0.2 to 0.5 mm.

3. The dry-mounted stone installation structure according to claim 1, characterized by: The outer surface of the mounting block (31) is galvanized, and the galvanized layer thickness is ≥85μm; The mounting block (31) is a low-carbon steel cuboid block that is interference-fitted with the rectangular cavity inside the galvanized square steel (3), and each mounting block (31) is fixed to the galvanized square steel (3) by at least two screws (32) arranged symmetrically along the width direction of the galvanized square steel (3) on its upper and lower surfaces.

4. The dry-mounted stone installation structure according to claim 1, characterized by: Both ends of the double-ended bolt (35) are threaded with anti-loosening nuts.

5. The dry-mounted stone installation structure according to claim 1, characterized by: The mounting block (31) is collinear with the central axis of the corresponding angle steel (2), and the spacing between two adjacent mounting blocks (31) is consistent with the spacing between two adjacent angle steels (2) of the stone slab (1).

6. The dry-mounted stone installation structure according to claim 1, characterized by: Each of the angle steels (2) is fixed to the stone slab (1) by stainless steel expansion bolts arranged along its length; The contact surface between the angle steel (2) and the stone slab (1) is provided with an epoxy anti-corrosion coating with a thickness of 50-100μm.

7. The dry-mounted stone installation structure according to claim 3, characterized by: The spacing between two adjacent mounting blocks (31) within the galvanized square steel (3) is equal to the spacing between two adjacent angle steels (2) on the stone slab (1), with a deviation not exceeding ±1mm.

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