Multi-directional adjusting hanging system for building facade aluminum alloy plate and construction method

Abstract

The invention relates to a multi-directional adjusting hanging system for a building facade aluminum alloy plate, which is characterized by comprising an embedded fixing system, a hanging system, a hanging system, a hanging system and a hanging system, and is characterized in that the embedded fixing system is mounted on the outer side of a building main body structure; the three-dimensional multi-direction adjusting hanging system is detachably and fixedly arranged on the embedded fixing system and at least provided with a universal rotating pair around the sphere center and a linear sliding pair in at least one direction; the aluminum alloy plate connecting system is used for detachably and fixedly arranging an aluminum alloy plate on the three-dimensional multi-direction adjusting hanging system and allowing the aluminum alloy plate to absorb displacement through the universal rotating pair and the linear sliding pair during thermal expansion and cold contraction; according to the invention, a mode of connecting and fixing a composite component of a universal spherical hinge and a sliding chute is adopted, the aluminum plate outer wall can be adjusted from three-dimensional angles during installation, meanwhile, the dependence on the precision of a base keel is also reduced, the control of the precision of a splicing seam of + / -0.3 mm after installation is realized, the thermal expansion and cold contraction displacement of the aluminum plate outer wall is absorbed by a hanging system, and the stress deformation is avoided.

Description

Technical Field

[0001] The present invention relates to the field of building facade decoration, in particular to a multi-directional adjustment hanging system and a construction method for aluminum alloy plates on building facades. Background Art

[0002] In the field of building facade decoration, aluminum alloy panels are widely used due to their light weight, weather resistance, and rich design features. Traditionally, aluminum panels for building exterior walls are mostly installed by welding or bolting, with the panels fixed to the existing building's main wall or structure via keels. However, these traditional fixing methods have the following drawbacks: Uncontrolled joint accuracy: The keel system of traditional aluminum curtain walls relies on on-site welding or manual drilling. Accumulated deviations lead to inaccurate positioning of the aluminum panels. There is a lack of fine-tuning mechanisms between panels, and joint errors are often corrected by "hard twisting". Ultimately, there will be misalignment, jagged edges, or broken lines of ±2 to 5 mm, which cannot meet the "zero-defect" facade requirements of theme buildings with high visual requirements.

[0003] Temperature stress deformation: The linear expansion coefficient of aluminum alloy is as high as 23×10⁻ 6 At a temperature difference of 60°C, a 3-meter-long panel will theoretically expand and contract by approximately 4 mm under a 60°C temperature gradient. Traditional rigid connections transfer this displacement directly to the panels and adhesive joints. Repeated expansion and contraction can cause bulging, warping, and even tearing of the weatherproof adhesive, leading to leakage and cosmetic damage.

[0004] The installation tolerance is too low: Traditional practices require that the keel be positioned with an accuracy of ≤1 mm in one go. The combined errors of on-site layout, welding, and punching are very likely to exceed the standard. Once the errors accumulate, rework or forced hammering are the only options, resulting in construction delays and increased costs.

[0005] Difficulty in subsequent maintenance: Fixed connections make it impossible to remove a single aluminum plate individually, and large areas must be removed during maintenance, increasing operating and maintenance costs. Summary of the Invention

[0006] The present invention aims to overcome the defects of the prior art and provide a multi-directional adjustable hanging system and construction method for aluminum alloy panels on building facades, so as to solve the problems of difficult control of the precision of aluminum panel exterior wall joints and temperature stress deformation.

[0007] In order to solve the above-mentioned technical problems, the present invention is achieved as follows: A multi-directional adjustable hanging system for aluminum alloy panels on building facades, characterized in that it comprises: Pre-buried fixing system, installed outside the main structure of the building; A three-dimensional multi-directional adjustable hooking system is detachably fixed to the embedded fixing system and has at least a universal rotation pair around the center of the ball and a linear sliding pair along at least one direction; An aluminum alloy plate connection system, which detachably fixes the aluminum alloy plate to the three-dimensional multi-directional adjustable hanging system and allows the aluminum alloy plate to absorb displacement during thermal expansion and contraction through the universal joint and linear sliding pair; Starting from the center point of the facade, the aluminum alloy panels are hung one by one in a radial installation sequence. After each set area is completed, laser measurement and torque-controlled tightening are used to control the joint accuracy between panels to within ±0.3 mm.

[0008] The multi-directional adjustable hanging system for building facade aluminum alloy panels is characterized in that the pre-embedded fixing system includes: Embedded steel plates fixed to the building's exterior wall by expansion bolts; A main keel welded to the embedded steel plate; A secondary keel welded longitudinally and transversely to the main keel; The primary and secondary keels together form a grid-like load-bearing frame.

[0009] The multi-directional adjustable hanging system for building facade aluminum alloy panels is characterized in that the three-dimensional multi-directional adjustable hanging system includes: The base has a bottom plate and a ball joint groove, and the bottom plate is fixed to the secondary keel node by self-tapping bolts; The ball joint is composed of a chromium-nickel alloy steel hemisphere and a support rod. The hemisphere is rotatably accommodated in the ball joint groove, and the support rod is provided with a linear notch. A special-shaped stainless steel plate connector, one end of which is slidably connected to the support rod by a self-tapping bolt located in the notch, and the other end is fixed to the lower part of the aluminum alloy plate by a self-tapping bolt; The base plate is also fixed to the upper portion of the aluminum alloy plate by self-tapping bolts, forming a hanging structure with upper and lower double-point connections and a middle ball joint for universal adjustment.

[0010] The multi-directional adjustable hanging system for aluminum alloy panels on building facades is characterized in that the ball joint groove is a nearly spherical groove with a diameter of Φ30±0.1 mm, and the curvature radius of the hemisphere matches the ball joint groove, allowing the ball joint to swing in all directions within the range of ±15°.

[0011] The multi-directional adjustment hanging system for aluminum alloy plates on building facades is characterized in that the linear sliding pair is realized by the cooperation of the oblong hole slot on the support rod and the self-tapping bolt on the special-shaped stainless steel plate connector, allowing the aluminum alloy plate to be finely adjusted and positioned within the range of ±5 mm in the horizontal direction.

[0012] The construction method of the multi-directional adjustable hanging system for building facade aluminum alloy panels is characterized by comprising the following steps: a) Determine the center point of the facade and install the initial three-dimensional multi-directional adjustable hanging system; b) Install the reference plate, and radially hang aluminum alloy plates one by one along the cross axis, leaving a 5mm seam between each plate; c) After completing each 3×3 panel area, use a cross laser to check verticality and seam flatness, and then check with a caliper; d) Use a torque-limiting wrench to tighten all self-tapping bolts to ensure that the connection strength is met while retaining the plate fine-tuning margin; e) Repeat steps b) to d) until the entire facade is completed, with the final joint accuracy controlled to ±0.3mm.

[0013] The construction method of the multi-directional adjustment hanging system for the aluminum alloy plate of the building facade is characterized in that: when the reference plate is installed, the horizontal azimuth angle is first adjusted by the universal ball joint, and then the axial position is adjusted by the slide groove, with an adjustment range of ±8mm and an adjustment accuracy of 0.1mm.

[0014] The beneficial effects of the present invention are as follows: As can be seen from the above technical solution, this application provides a multi-directional adjustable hanging system and construction method for aluminum alloy panels on building facades, which adopts a "universal ball joint + slide groove" composite component connection and fixation method. From the installation perspective, the aluminum panel exterior wall can be adjusted from all three angles during installation, while also reducing the dependence on the accuracy of the base keel, and the construction fault tolerance rate is increased by 50%; from the acceptance requirements perspective, the post-installation joint accuracy of ±0.3mm is controlled; from the actual use perspective, the thermal expansion and contraction displacement of the aluminum panel exterior wall is absorbed by the hanging system, avoiding stress deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of this application.

[0016] Figure 2 Schematic diagram of a ball joint.

[0017] Figure 3 Schematic diagram of ball joint groove. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions of the embodiments of the present application in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection requested by this application. like Figure 1-3Shown: A multi-directional adjustable hanging system for aluminum alloy panels on building facades, comprising: Pre-buried fixing system, installed outside the main structure of the building; A three-dimensional multi-directional adjustable hooking system is detachably fixed to the embedded fixing system and has at least a universal rotation pair around the center of the ball and a linear sliding pair along at least one direction; An aluminum alloy plate connection system, which detachably fixes the aluminum alloy plate to the three-dimensional multi-directional adjustable hanging system and allows the aluminum alloy plate to absorb displacement during thermal expansion and contraction through the universal joint and linear sliding pair; Starting from the center of the facade, the aluminum alloy panels were installed one by one in a radial installation sequence, leaving a 5mm gap between each panel. A cross laser was used to check the verticality and flatness of the aluminum panels. A torque-limiting wrench was used to control the tightening force of the bolts to avoid over-locking.

[0019] The embedded fixing system includes: An embedded steel plate 2 fixed to the building's exterior wall by expansion bolts 1; A main keel 3 welded to the embedded steel plate; A secondary keel 4 welded longitudinally and transversely to the main keel; The main and secondary keels are square steel tubes. The keels are divided into a main keel 3 and a secondary keel 4, which are arranged longitudinally and transversely and welded to the embedded parts.

[0020] The three-dimensional multi-directional adjustable hanging system includes: The base has a bottom plate 5 and a ball joint groove 7, and the bottom plate is fixed to the main and secondary keels by self-tapping bolts 6; The ball joint 8 is composed of a chromium-nickel alloy steel hemisphere and a support rod. The hemisphere is rotatably accommodated in the ball joint groove, and the support rod is provided with a linear notch; A special-shaped stainless steel plate connector 12, one end of which is slidably connected to the support rod by a self-tapping bolt 11 located in the notch, and the other end is fixed to the lower part of the aluminum alloy plate 10 by a self-tapping bolt 9; The base plate is also fixed to the upper portion of the aluminum alloy plate by self-tapping bolts, forming a hanging structure with upper and lower double-point connections and a middle ball joint for universal adjustment.

[0021] The ball joint groove is a nearly spherical groove with a diameter of Φ30±0.1 mm. The curvature radius of the hemisphere matches the ball joint groove, allowing the ball joint to swing in all directions within the range of ±15°.

[0022] The linear sliding pair is realized by the cooperation between the oblong hole notch on the support rod and the self-tapping bolt on the special-shaped stainless steel plate connecting piece, allowing the aluminum alloy plate to be finely adjusted and positioned within the range of ±5 mm in the horizontal direction.

[0023] A construction method for a multi-directional adjustable hanging system for building facade aluminum alloy panels, the operating steps are as follows: Step 1: After the primary and secondary keels 3 / 4 are cross-welded on the embedded parts 2, the base 5 is welded to the nodes of the secondary keel 4, with a position error of ≤3mm; Step 2: Press the ball joint 8 into the base ball groove 7 and apply molybdenum disulfide grease to the ball joint; Step 3: The lower part of the upper aluminum plate 10 is fixed with self-tapping bolts 9 and special-shaped connectors 12; Step 4: Connect the aluminum plate connector assembly to the ball joint 8 using self-tapping bolts 11; Step 5: The upper part of the lower aluminum plate 10 is fixed to the base bottom plate 10 with self-tapping bolts 9; Step 6: After rough positioning, use a cross laser to adjust the universal ball joint and notch so that the laser line coincides with the designed seam line; Step 7: Tighten the self-tapping bolts 11 according to the torque to complete the board installation. Step 8: After installing every 9 panels, use a cross laser to check the seam accuracy and straightness (allowable error 0.2mm).

[0024] The staggered joint control construction method includes the following steps: a) Determine the center point of the facade and install the initial three-dimensional multi-directional adjustable hanging system; b) Install the reference plate, and radially hang aluminum alloy plates one by one along the cross axis, leaving a 5mm seam between each plate; c) After completing each 3×3 panel area, use a cross laser to check verticality and seam flatness, and then check with a caliper; d) Use a torque-limiting wrench to tighten all self-tapping bolts to ensure that the connection strength is met while retaining the plate fine-tuning margin; e) Repeat steps b) to d) until the entire facade is completed, with the final joint accuracy controlled to ±0.3mm.

[0025] When installing the reference plate, first adjust the horizontal azimuth angle through the universal ball joint, and then adjust the axial position through the slide groove. The adjustment range is ±8mm and the adjustment accuracy is 0.1mm.

[0026] When the aluminum alloy plate expands and contracts due to heat, the displacement is first absorbed by the universal rotation of the ball joint, and the remaining displacement is further absorbed by the linear sliding pair, thereby avoiding stress concentration and plate warping and deformation.

[0027] This invention utilizes a composite adjustment mechanism combining a universal ball joint and a bidirectional slide to eliminate keel installation errors piece by piece in three dimensions, eliminating the need for repeated on-site cutting or repair welding. Construction measurements have shown that the joint error can be steadily reduced from the traditional ±2-5 mm to ±0.3 mm, meeting the "zero-defect" facade standards for visually demanding theme buildings.

[0028] The theoretical expansion and contraction of the aluminum alloy panels under a 60°C temperature gradient can be absorbed by both the ±15° swing of the ball joint and the ±5 mm linear displacement of the guideway, resulting in a total margin of 9 mm, far exceeding the actual requirement of 4 mm. This "movable, non-rigid" connection between the panels and the keel prevents bulging, warping, and tearing of the weatherproof adhesive, extending the service life of the curtain wall.

[0029] The tolerance for the keel's initial placement is reduced to ≤3 mm, which can be subsequently compensated for using ball joints and guide slots. A radial installation sequence, combined with laser / caliper segmented verification, limits the error to a 3×3 area, preventing it from accumulating. This reduces the on-site rework rate by over 50%, shortening the overall construction period by 15% to 20%.

[0030] All connections in this application are mechanically secured with self-tapping bolts. During maintenance, any aluminum plate can be removed by simply loosening the corresponding bolts, eliminating the need for extensive demolition or open flame cutting. According to operational statistics, the time required to replace a single plate has been reduced from the traditional 4-6 hours to under 30 minutes, significantly reducing ongoing maintenance costs.

[0031] The above are only embodiments provided for this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.

Claims

1. A multi-directional adjustable hanging system for building facade aluminum alloy panels, characterized in that It includes: Pre-buried fixing system, installed outside the main structure of the building; A three-dimensional multi-directional adjustable hooking system is detachably fixed to the embedded fixing system and has at least a universal rotation pair around the center of the ball and a linear sliding pair along at least one direction; An aluminum alloy plate connection system, which detachably fixes the aluminum alloy plate to the three-dimensional multi-directional adjustable hanging system and allows the aluminum alloy plate to absorb displacement during thermal expansion and contraction through the universal joint and linear sliding pair; Starting from the center point of the facade, the aluminum alloy panels are hung one by one in a radial installation sequence. After each set area is completed, laser measurement and torque-controlled tightening are used to control the joint accuracy between panels to within ±0.3 mm.

2. A multi-directional adjustable hanging system for building facade aluminum alloy panels according to claim 1, characterized in that The embedded fixing system includes: Embedded steel plates fixed to the building's exterior wall by expansion bolts; A main keel welded to the embedded steel plate; A secondary keel welded longitudinally and transversely to the main keel; The primary and secondary keels together form a grid-like load-bearing frame.

3. The multi-directional adjustable hanging system for building facade aluminum alloy panels according to claim 1 is characterized in that The three-dimensional multi-directional adjustable hanging system includes: The base has a bottom plate and a ball joint groove, and the bottom plate is fixed to the secondary keel node by self-tapping bolts; The ball joint is composed of a chromium-nickel alloy steel hemisphere and a support rod. The hemisphere is rotatably accommodated in the ball joint groove, and the support rod is provided with a linear notch. A special-shaped stainless steel plate connector, one end of which is slidably connected to the support rod by a self-tapping bolt located in the notch, and the other end is fixed to the lower part of the aluminum alloy plate by a self-tapping bolt; The base plate is also fixed to the upper portion of the aluminum alloy plate by self-tapping bolts, forming a hanging structure with upper and lower double-point connections and a middle ball joint for universal adjustment.

4. The multi-directional adjustable hanging system for building facade aluminum alloy panels according to claim 3, characterized in that: The ball joint groove is a nearly spherical groove with a diameter of Φ30±0.1 mm. The curvature radius of the hemisphere matches the ball joint groove, allowing the ball joint to swing in all directions within the range of ±15°.

5. The multi-directional adjustable hanging system for building facade aluminum alloy panels according to claim 1, characterized in that: The linear sliding pair is realized by the cooperation between the oblong hole notch on the support rod and the self-tapping bolt on the special-shaped stainless steel plate connecting piece, allowing the aluminum alloy plate to be finely adjusted and positioned within the range of ±5 mm in the horizontal direction.

6. The construction method of a multi-directional adjustable hanging system for building facade aluminum alloy panels according to claim 1, characterized in that The steps include: a) Determine the center point of the facade and install the initial three-dimensional multi-directional adjustable hanging system; b) Install the reference plate, and radially hang aluminum alloy plates one by one along the cross axis, leaving a 5 mm seam between each plate; c) After completing each 3×3 panel area, use a cross laser to check verticality and seam flatness, and then check with a caliper; d) Use a torque-limiting wrench to tighten all self-tapping bolts to ensure that the connection strength is met while retaining the plate fine-tuning margin; e) Repeat steps b) to d) until the entire facade is completed, with the final joint accuracy controlled to ±0.3mm.

7. The construction method of a multi-directional adjustable hanging system for building facade aluminum alloy panels according to claim 6, characterized in that: When installing the reference plate, first adjust the horizontal azimuth angle through the universal ball joint, and then adjust the axial position through the slide groove. The adjustment range is ±8mm and the adjustment accuracy is 0.1mm.

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