A ground-sky rail suspension type buckle steel wallboard system and a construction method thereof

Abstract

The application discloses a kind of ground rail suspension type buckle steel wallboard system and method, including ground rail, ground rail, vertical frame keel, V-shaped buckle strip and metal corrugated composite wallboard;Vertical keel upper and lower end is inserted in ground rail and forms independent suspension frame, and no transverse auxiliary keel is arranged between keel;V-shaped buckle strip and keel inturned edge are enclosed to form clamping gap, and the clamping plate of wallboard side edge is inserted into the gap to realize elastic locking.The method comprises the following steps: installing ground rail and spaced L-shaped corner code, fixing vertical keel;V-shaped buckle strip and bottom support are loaded;The lateral end of clamping plate is pushed into the wallboard by using the structure of the lateral end of clamping plate.The wallboard is slightly inclined, lifted upward and pulled out when disassembled, without the need to disassemble ground rail and keel.The application realizes single-piece independent, non-destructive disassembly and reuse of wallboard by the cooperation of high-stiffness corrugated board and suspension side clamping structure.

Description

Technical Field

[0001] This invention belongs to the field of building decoration and prefabricated construction, and specifically relates to a suspended snap-fit ​​steel wall panel system with top and bottom rails and its construction method. Background Technology

[0002] With the promotion of prefabricated buildings, metal corrugated composite wall panels are widely used in interior and exterior decoration due to their lightweight and aesthetic features.

[0003] Currently, most interior metal wall panels are installed using traditional dry-hanging, welded keel, and direct wall fixing methods. The wall panels are directly fixed to the building wall, floor, or ceiling base through connectors.

[0004] The existing technology mainly involves fixing the keel directly to the wall, floor, or ceiling with expansion bolts, and fixing the wall panels directly to the keel or wall through welding, screws, or hangers.

[0005] The following disadvantages exist: for special working conditions with frequent maintenance, the wall panels are difficult to remove after installation, and disassembly can easily cause damage to the keel, surface layer and base layer, making them unusable for reuse. They rely on on-site welding and wet work, resulting in high pollution, long construction period and high labor costs. Later pipeline maintenance, space transformation and surface renovation are difficult and maintenance costs are high. Summary of the Invention

[0006] This invention provides a suspended snap-on steel wall panel system with top and bottom rails and its construction method, which solves the technical problems of difficult wall panel removal after installation in special working conditions with frequent maintenance, easy damage to the keel, surface layer and base layer during disassembly, inability to reuse, reliance on on-site welding and wet work, high pollution, long construction period, high labor cost, and difficulty in subsequent pipeline maintenance, space transformation and decoration renovation, resulting in high maintenance costs.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a suspended snap-fit ​​steel wall panel system with top and bottom rails, comprising: The wall consists of ceiling rails, floor rails, several vertical frame keels, V-shaped buckle strips, and corrugated metal composite wall panels. The overhead track is fixed to the top surface structure; the ground track is fixed to the ground surface structure. The vertical frame keel is a U-shaped profile with inward flanges at both ends. There is a gap between the two inward flanges to form a snap-fit ​​channel and it turns inward to form an arc-shaped snap-fit ​​part. The upper and lower ends of the vertical frame keel are respectively inserted into the ceiling rail and the ground rail to form an independent floating support frame. No horizontal secondary keel is set between the vertical frame keels. The V-shaped buckle strip is a V-shaped profile, which is located on the inner side of the vertical frame keel. The top end of the V-shaped buckle strip faces outward, and both ends of the V-shaped buckle strip are provided with bottom edges and fit against the inner side wall of the vertical frame keel. The top end of the V-shaped buckle strip extends out of the vertical frame keel, and the V-shaped buckle strip and the arc-shaped buckle part surround to form a buckle gap. The metal corrugated composite wall panel is made of a 0.6mm to 1.2mm film-coated steel sheet surface layer and a 0.2mm to 0.5mm aluminum corrugated core, which are hot-pressed together. The corrugated core has a wave height of 8mm to 20mm. The two sides of the metal corrugated composite wall panel are folded and extended to form a snap-fit ​​plate. The inner side wall of the snap-fit ​​plate is provided with an inwardly protruding snap-fit ​​rib. During installation, the snap-fit ​​rib is inserted into the snap-fit ​​gap and forms a snap-fit ​​structure with the arc-shaped snap-fit ​​part for limiting cooperation.

[0008] Preferably, the ceiling track is a U-shaped steel with its opening facing downwards, and the floor track is a U-shaped steel with its opening facing upwards; the top structure is a structural floor slab or a ceiling decorative panel, and the ceiling track is fixed to the top structure with self-tapping screws; the floor structure is a structural floor slab or a floor decorative surface layer, and the floor track is fixed to the floor structure with self-tapping screws.

[0009] Preferably, the arc-shaped snap-fit ​​part is an arc surface formed by rolling the end of the inner flange inward, and the snap-fit ​​rib is a semi-circular arc rib that protrudes inward on the inner side wall of the snap-fit ​​plate; the outer arc surface of the snap-fit ​​rib is adapted to the curvature of the inner arc surface of the arc-shaped snap-fit ​​part to form an elastic snap-fit ​​fit of line contact or surface contact.

[0010] Preferably, the bottom of the corrugated metal composite wall panel has an inspection joint of 20mm to 50mm between it and the ground. A bottom support of matching size is provided in the inspection joint, and the corrugated metal composite wall panel is supported on the bottom support.

[0011] Preferably, the method further includes several L-shaped corner brackets arranged at intervals; one end of the L-shaped corner bracket is anchored to the base of the building wall, and the other end is connected to one side of the vertical frame keel.

[0012] Preferably, the two ends of the snap-fit ​​plate have an inwardly recessed gap with the two end edges of the metal corrugated composite wall panel.

[0013] Preferably, the metal corrugated composite wall panel is formed by hot pressing a 0.8mm film-coated steel sheet surface layer and a 0.3mm aluminum corrugated core, with a corrugated core wave height of 12mm and a total thickness of 18mm including the snap-fit ​​plate.

[0014] A suspended, snap-fit ​​steel wall panel system with top and bottom rails includes the following steps: S1 top and bottom rail installation: Mark the control lines for the ceiling rail installation on the top structure and the control lines for the ground rail installation on the ground structure; fix the ceiling rail to the top structure with self-tapping screws, and lay the ground rail on the ground structure and fix it with self-tapping screws to ensure that the ceiling rail and the ground rail are aligned in the vertical direction. S2 Vertical keel and L-shaped angle bracket installation: Distribute several L-shaped corner brackets evenly along the height of the vertical frame keel, and anchor one end of the L-shaped corner bracket to the base of the building wall; insert the upper and lower ends of the vertical frame keel into the top track and the bottom track respectively, adjust the verticality, and connect the other end of the L-shaped corner bracket to the vertical frame keel so that the vertical frame keel forms a suspended state that is only limited by the lateral direction. S3 V-shaped clip installation: Place the V-shaped buckle strip on the inside of the vertical frame keel, with the top end of the V-shaped buckle strip facing outward and the bottom end locked in the installation groove on the inside of the vertical frame keel to form a locking gap. S4 wall panel installation: Take a metal corrugated composite wall panel, and use the inward spacing between the two ends of the snap-fit ​​plate and the edge of the wall panel to avoid interference between the top of the wall panel and the top track, and the bottom of the wall panel and the bottom track; push the wall panel in laterally so that the snap-fit ​​rib is inserted into the snap-fit ​​gap and forms a limiting fit with the arc-shaped snap-fit ​​part; S5 Disassembly during maintenance: Select the wall panel to be disassembled and tilt its bottom slightly outward; lift the wall panel upward, and use the inward spacing at both ends of the snap plate to make the snap ribs disengage from the V-shaped snap strip and make the top of the wall panel disengage from the ceiling track; pull out the wall panel parallel to the ground; in this disassembly step, it is not necessary to disassemble the ceiling track, ground track, vertical frame keel and L-shaped corner bracket. S6 Installation after maintenance: Take the new or replaced metal corrugated composite wall panel, repeat step S4, and re-insert the wall panel into its original position.

[0015] Preferably, between step S3 and step S4, a bottom support installation step is also included: S31: Install bottom support components on the bottom inner side of the vertical frame keel; The bottom support is embedded in the 20mm-50mm inspection seam as described in claim 4; In step S4, after the metal corrugated composite wall panel is installed in place, its bottom folded edge is supported on the upper surface of the bottom support member. During the disassembly process in step S5, when the bottom of the wall panel tilts slightly outward, the bottom folded edge disengages from the bottom support. In the reinstallation process of step S6, after the wall panel is reinstalled, its bottom folded edge is once again supported on the bottom support.

[0016] The beneficial effects of this invention are reflected in: 1. Constructing an "Independent Suspended Support Frame": Traditional wall panel systems (such as CN219587105U) rely on vertical keels to be rigidly anchored to the wall using expansion bolts, and require horizontal secondary keels (black line keels) to support the wall panels, resulting in the frame being "grown together" with the wall and unable to be disassembled. This solution constructs a three-dimensional frame completely independent of the wall through the "interlocking" relationship between the ceiling track, floor track, and vertical keel. The vertical keel only "sits" on the floor track and "hangs" under the ceiling track, without relying on the wall for load-bearing. This clearly proposes the concept of "suspension" in the field of metal corrugated wall panels, providing a structural prerequisite for subsequent "non-destructive disassembly."

[0017] 2. Eliminate the horizontal secondary keel to simplify the system and reduce costs; Traditional systems, due to the low rigidity of the wall panels, must rely on horizontal joists to prevent panel sagging. This solution, by limiting specific parameters of the corrugated metal composite wall panels, significantly improves the moment of inertia and bending stiffness of the panels themselves, enabling them to span vertical joist spacing (typically 600~1200mm) without significant deflection. Eliminating the horizontal joists not only reduces steel consumption by 30%~40%, but more importantly, it eliminates the interference of the horizontal joists on the wall panel disassembly path, which is key to achieving independent disassembly of individual wall panels.

[0018] 3. It features an innovative "arc-shaped snap-fit ​​part + V-shaped snap-fit ​​strip" elastic clamping structure to achieve self-adaptive locking; The inward-curving ends of the vertical keel form an "arc-shaped snap-fit," which, together with the "V-groove" of the V-shaped snap-fit ​​strip, creates a "trumpet-shaped" snap-fit ​​gap. When the "snap-fit ​​rib" on the side of the wall panel is inserted, the V-shaped strip undergoes slight elastic deformation, generating a continuous clamping force. The curvature of the arc surface matches the arc surface of the snap-fit ​​rib, forming line or surface contact, greatly increasing friction and pull-out resistance, while avoiding panel edge deformation or coating damage caused by stress concentration at sharp corners. Compared to traditional "hook-type" or "screw-type" connections, this structure has self-locking, anti-loosening, and vibration-resistant characteristics, and is more tolerant of processing precision and installation errors.

[0019] 4. Side-mounted clips replace back-mounted fasteners, clearing the way for "single-piece non-destructive disassembly"; Traditional wall panels often use back-mounting, back-insertion, or back-adhesive methods. Disassembly requires touching the back of the panel or loosening the back connectors, inevitably leading to damage to the entire wall or a large area. This solution moves all connection points to the side of the wall panel (clamping plate), with the clamping direction being a horizontal, lateral insertion. This "lateral force application, front visibility" design allows operators to release lateral constraints without touching the back by using a "slight tilt + lift" motion.

[0020] 5. The perfect match between high-rigidity corrugated composite panels and the suspended frame achieves "overcoming rigidity with weight"; This solution does not pursue "ultimate lightweighting" in the traditional sense. Instead, it intentionally increases the weight per unit area of ​​the wall panel by increasing the surface layer thickness and wave height. This "weight increase" is not wasteful, but rather a trade-off for extremely high bending stiffness. Heavier wall panels are more stable within the V-groove, less prone to resonance or loosening, and gravity helps enhance the stability of the snap-fit ​​structure. This breaks the conventional thinking that "the lighter the wall panel, the better," proving that in a specific structural system (suspended + side snap-fit), moderate weight increase is an effective means of achieving high stability, high flatness, and removability.

[0021] In summary, this design features independent upper and lower tracks, with vertical joists inserted between them. These tracks are detached from the wall, floor, and ceiling finishes, forming a suspended, independent framework. The wall panel load is transferred solely through the tracks, not to the finishes, thus preventing damage during disassembly and installation for maintenance. The wall panel edges align with the V-shaped grooves in the joists, allowing for easy insertion with a light press. The grooves provide elastic support, preventing loosening, slipping, and vibration. Disassembly is simple: a gentle lift releases the panel from the grooves without tools or damage, allowing for repeated assembly and disassembly. The corrugated aluminum core provides multi-directional support, distributing load, suppressing deformation, and significantly improving the wall panel's rigidity, flatness, and impact resistance, ensuring long-term flatness of large wall areas. It achieves the following: 1. High disassembly capability: Wall panels can be easily disassembled, replaced individually, and reused, making later maintenance, modification, and renovation convenient; 2. Higher quality: Corrugated composite structure has high rigidity, impact resistance, no deformation, and good flatness; 3. Faster construction: Factory prefabrication and on-site modular assembly shorten the construction period by more than 30%; 4. Green and environmentally friendly: No welding fumes, no dust, and no wet operation pollution; 5. Lower cost: Elimination of horizontal keel, reduction of labor, and reduction of rework rate; 6. Wide applicability: Especially suitable for large-area, high-maintenance public spaces such as hospitals, shopping malls, office buildings, and schools.

[0022] It solves the technical problems of difficult wall panel removal after installation in special working conditions with frequent maintenance, which can easily cause damage to the keel, surface layer and base layer, making it impossible to reuse. It also solves the problems of relying on on-site welding and wet work, resulting in high pollution, long construction period and high labor costs, as well as difficulties in subsequent pipeline maintenance, space transformation and decoration renovation, and high maintenance costs.

[0023] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention; the main objects and other advantages of the invention may be realized and obtained by means of the embodiments particularly pointed out in the description. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure installation of an embodiment of the present invention; Figure 2 This is a schematic diagram of the vertical frame keel and V-shaped buckle strip according to an embodiment of the present invention; Figure 3 This is an installation diagram of the metal corrugated composite wall panel according to an embodiment of the present invention; Figure 4 This is a structural diagram of the metal corrugated composite wall panel according to an embodiment of the present invention; Figure 5 This is an installation cross-sectional view of the vertical frame keel according to an embodiment of the present invention; Figure 6 This is an elevation view of the installation of the vertical frame keel according to an embodiment of the present invention.

[0025] Attached diagram descriptions: 1. Ceiling rail; 2. Ground rail; 3. Vertical frame keel; 31. Inward flange; 32. Arc-shaped snap-fit ​​part; 4. V-shaped snap-fit ​​strip; 41. Bottom edge; 5. Metal corrugated composite wall panel; 51. Film-coated steel plate surface layer; 52. Aluminum corrugated core; 53. Snap-fit ​​plate; 54. Snap-fit ​​rib; 6. Inspection joint; 7. L-shaped corner bracket. Detailed Implementation

[0026] The technical solutions of the present invention will be described in detail below through embodiments. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solutions of the present invention, and should not be construed as limiting the technical solutions of the present invention.

[0027] Combination Figure 1-6 A suspended, snap-fit ​​steel wall panel system with top and bottom rails, comprising: 1. Ceiling track; 2. Ground track; 3. Several vertical frame keels; 4. V-shaped buckle strips; 5. Metal corrugated composite wall panels; Sky rail 1 is fixed to the top structure; ground rail 2 is fixed to the ground structure. The vertical frame keel 3 is a U-shaped profile with inward flanges 31 at both ends. There is a gap between the two inward flanges 31 to form a snap-fit ​​channel and it turns inward to form an arc-shaped snap-fit ​​part 32. The upper and lower ends of the vertical frame keel 3 are respectively inserted into the ceiling rail 1 and the ground rail 2 to form an independent suspended support frame. No horizontal secondary keels are set between the vertical frame keels 3. The V-shaped buckle strip 4 is a V-shaped profile. It is located on the inside of the vertical frame keel 3. The top end of the V-shaped buckle strip 4 faces outward. Both ends of the V-shaped buckle strip 4 are provided with bottom edges 41 and are attached to the inner side wall of the vertical frame keel 3. The top end of the V-shaped buckle strip 4 extends out of the vertical frame keel 3. The V-shaped buckle strip 4 and the arc-shaped buckle part 32 surround and form a buckle gap. The metal corrugated composite wall panel 5 is made of a 0.6mm to 1.2mm film-coated steel sheet surface layer 51 and a 0.2mm to 0.5mm aluminum corrugated core 52, which are hot-pressed together. The corrugated core has a wave height of 8mm to 20mm. The two sides of the metal corrugated composite wall panel 5 extend to form a snap-fit ​​plate 53. The inner side wall of the snap-fit ​​plate 53 is provided with an inwardly protruding snap-fit ​​rib 54. During installation, the snap-fit ​​rib 54 is inserted into the snap-fit ​​gap and forms a snap-fit ​​structure with the arc-shaped snap-fit ​​part 32 for limiting cooperation.

[0028] 1. Constructing an "Independent Suspended Support Frame": Traditional wall panel systems (such as CN219587105U) rely on vertical keels to be rigidly anchored to the wall using expansion bolts, and require horizontal secondary keels (black line keels) to support the wall panels, resulting in the frame being "grown together" with the wall and unable to be disassembled. This solution constructs a three-dimensional frame completely independent of the wall through the "interlocking" relationship between the ceiling track 1, floor track 2, and vertical keels. The vertical keels only "sit" on the floor track 2 and "hang" under the ceiling track 1, without relying on the wall for load-bearing. This clearly proposes the concept of "suspension" in the field of metal corrugated wall panels, providing a structural prerequisite for subsequent "non-destructive disassembly".

[0029] 2. Eliminate the horizontal secondary keel to simplify the system and reduce costs; Traditional systems, due to the low rigidity of the wall panels, must rely on horizontal joists to prevent panel sagging. This solution, by limiting specific parameters of the metal corrugated composite wall panel 5, significantly improves the panel's own moment of inertia and bending stiffness, enabling it to span vertical joist spacing (typically 600~1200mm) without significant deflection. Eliminating the horizontal joists not only reduces steel consumption by 30%~40%, but more importantly, it eliminates the interference of the horizontal joists on the wall panel disassembly path, which is key to achieving independent disassembly of individual wall panels.

[0030] 3. It features an innovative "arc-shaped snap-fit ​​part 32 + V-shaped snap-fit ​​strip 4" elastic clamping structure to achieve self-adaptive locking; The vertical keel's inner flange 31 is rounded at the end to form an "arc-shaped snap-fit ​​part 32," which, together with the "V-shaped groove" of the V-shaped snap-fit ​​strip 4, forms a "trumpet-shaped" snap-fit ​​gap. When the "snap-fit ​​rib 54" on the side of the wall panel is inserted, the V-shaped strip undergoes slight elastic deformation, generating a continuous clamping force. The curvature of the arc surface matches that of the snap-fit ​​rib 54, forming line or surface contact, greatly increasing friction and pull-out resistance, while avoiding panel edge deformation or coating damage caused by stress concentration at sharp corners. Compared to traditional "hook-type" or "screw-type" connections, this structure has self-locking, anti-loosening, and vibration-resistant characteristics, and is more tolerant of processing precision and installation errors.

[0031] 4. Side-mounted clips replace back-mounted fasteners, clearing the way for "single-piece non-destructive disassembly"; Traditional wall panels often use back-mounting, back-insertion, or back-adhesive methods. Disassembly requires touching the back of the wall panel or loosening the back connectors, inevitably leading to damage to the entire wall or a large area. This solution moves all connection points to the side of the wall panel (clamping plate 53), with the clamping direction being a horizontal, lateral insertion. This "lateral force application, front visibility" design allows operators to release the lateral constraints without touching the back by using a "slight tilt + lift" motion.

[0032] 5. The perfect match between high-rigidity corrugated composite panels and the suspended frame achieves "overcoming rigidity with weight"; This solution does not pursue "ultimate lightweighting" in the traditional sense. Instead, it intentionally increases the weight per unit area of ​​the wall panel by increasing the surface layer thickness and wave height. This "weight increase" is not wasteful, but rather a trade-off for extremely high bending stiffness. Heavier wall panels are more stable within the V-groove, less prone to resonance or loosening, and gravity helps enhance the stability of the snap-fit ​​structure. This breaks the conventional thinking that "the lighter the wall panel, the better," proving that in a specific structural system (suspended + side snap-fit), moderate weight increase is an effective means of achieving high stability, high flatness, and removability.

[0033] The ceiling track 1 is a U-shaped steel section with its opening facing downwards, and the floor track 2 is a U-shaped steel section with its opening facing upwards. The ceiling structure is either a structural floor slab or a ceiling decorative panel, and the ceiling track 1 is fixed to the ceiling structure using self-tapping screws. The floor structure is either a structural floor slab or a floor decorative surface layer, and the floor track 2 is fixed to the floor structure using self-tapping screws. It is clear that the ceiling track 1 can be fixed to the structural floor slab (new construction) or the ceiling decorative panel (renovation); the floor track 2 can be fixed to the structural floor slab or the base layer above the floor decorative surface layer. The use of self-tapping screws ensures the reliability of the connection. Crucially, the anchoring points of the ceiling track 1 / floor track 2 are located behind or below the decorative surface layer, rather than penetrating the surface layer itself (except for necessary mounting holes). This clearly defines the difference between "base layer anchoring during installation" and "zero damage to the surface layer during use and maintenance." Although screws are required for the initial installation, because the framework (ceiling and floor tracks 2) is never removed during subsequent disassembly, "zero additional damage" to the surface layer is achieved throughout its entire life cycle.

[0034] The arc-shaped snap-fit ​​part 32 is an arc surface formed by rolling the end of the inner flange 31 inward. The snap-fit ​​rib 54 is a semi-circular arc rib protruding inward on the inner sidewall of the snap-fit ​​plate 53. The outer arc surface of the snap-fit ​​rib 54 matches the curvature of the inner arc surface of the arc-shaped snap-fit ​​part 32, forming an elastic snap-fit ​​engagement with line or surface contact. The mounting slot provides accurate positioning for the V-shaped strip; the rolled arc-shaped snap-fit ​​part 32 eliminates sharp edges and protects the folded edges of the wall panel; the semi-circular arc rib-shaped snap-fit ​​rib 54 and the arc-shaped snap-fit ​​part 32 form a line / surface contact with matching curvature, which significantly increases the contact area compared to point contact, reduces local pressure, and prevents wall panel deformation or coating peeling. At the same time, the elastic contact can absorb some vibration energy and improve seismic performance. The snap-fit ​​structure is upgraded from a simple "hook" to a precise "elastic engagement", which significantly improves the long-term reliability and fatigue resistance of the system.

[0035] The bottom of the corrugated metal composite wall panel 5 has a 20mm-50mm inspection joint 6 between it and the ground. Disassembly and assembly space is also reserved between the bottom of the panel and the top structure. A matching bottom support is installed within the inspection joint 6, supporting the panel 5. Although the side snap-fit ​​can withstand vertical forces, there is still a slight risk of creep under long-term stress. The bottom support, acting as a "second line of defense," directly supports the bottom of the wall panel, completely eliminating any concerns about sagging. The 20-50mm inspection joint not only accommodates the support but also provides space for pipeline maintenance and ground deformation. The support is "embedded" in the joint, without affecting the overall flatness. This embodies a "double insurance" design concept, ensuring structural safety (fall prevention), meeting functional requirements (maintenance access), and maintaining aesthetics (invisibility).

[0036] It also includes several L-shaped corner brackets 7 arranged at intervals; one end of the L-shaped corner bracket 7 is anchored to the building wall base using conventional methods such as expansion bolts, and the other end is connected to one side of the vertical frame keel 3 using conventional methods such as bolts. After the horizontal keel is eliminated, the vertical keel may sway laterally under horizontal wind pressure or impact force. The L-shaped corner brackets provide the necessary lateral restraint, but their connection is strictly limited to "lateral restraint only" and does not bear vertical loads (the weight is borne by the top and bottom rails 2). The interval arrangement (rather than continuous welding or dense fixing) ensures that the keel can still freely make small vertical displacements (such as thermal expansion and contraction). The functional boundaries of the corner brackets are precisely defined to prevent them from "overstepping their bounds" and bearing vertical forces, thereby maintaining the correct mechanical logic of the "suspended system".

[0037] The two ends of the snap-fit ​​plate 53 have an inwardly recessed gap with the two end edges of the corrugated metal composite wall panel 5. If the snap-fit ​​plate 53 extends all the way to the edge of the wall panel, the entire snap-fit ​​plate 53 must be precisely aligned with the entire V-groove during installation, which is extremely difficult. After the two ends are recessed, the starting end of the installation naturally forms an inlet angle. The operator only needs to align the middle section of the snap-fit ​​plate 53 with the V-groove, and use the flexibility of the wall panel to push it into place. The recessed part naturally avoids the interference area between the top of the wall panel and the ceiling track 1, and the bottom and the floor track 2. Simplifying the installation from "precise alignment" to "area alignment" is a key design feature that improves installation speed (expected to increase by more than 30%) and reduces labor costs.

[0038] The metal corrugated composite wall panel 5 is hot-pressed together with a 0.8mm film-coated steel sheet surface layer 51 and a 0.3mm aluminum corrugated core 52. The corrugated core has a wave height of 12mm, and the total thickness including the snap-fit ​​plate 53 is 18mm. The 0.8mm surface layer ensures impact resistance, the 0.3mm core material balances strength and toughness, the 12mm wave height provides sufficient cross-sectional height, and the 18mm total thickness (including the folded edges) conforms to building modules and facilitates transportation and installation. This provides the market with a "golden parameter" that can be directly replicated, has the lowest risk, and the best performance.

[0039] A suspended snap-fit ​​steel wall panel system with a top and bottom track includes the following steps: S1 Ground Track 2 Installation: Mark the installation control lines for ceiling rail 1 on the top structure and the installation control lines for floor rail 2 on the ground structure; fix ceiling rail 1 to the top structure with self-tapping screws, and lay floor rail 2 on the ground structure and fix it with self-tapping screws to ensure that ceiling rail 1 and floor rail 2 are aligned in the vertical direction. S2 Vertical keel and L-shaped angle bracket installation: Several L-shaped corner brackets are evenly distributed along the height direction of the vertical frame keel 3, and one end of the L-shaped corner bracket is anchored to the base of the building wall; the upper and lower ends of the vertical frame keel 3 are inserted into the top track 1 and the bottom track 2 respectively, and after adjusting the verticality, the other end of the L-shaped corner bracket is connected to the vertical frame keel 3, so that the vertical frame keel 3 forms a suspended state that is only limited by the lateral direction. S3 V-shaped buckle strip 4 installation: Place the V-shaped buckle strip 4 on the inside of the vertical frame keel 3, with the top end of the V-shaped buckle strip 4 facing outward and the bottom end locked in the mounting groove on the inside of the vertical frame keel 3 to form a locking gap. S4 wall panel installation: Take the metal corrugated composite wall panel 5, and use the inward spacing between the two ends of the snap-fit ​​plate 53 and the edge of the wall panel to avoid interference between the top of the wall panel and the top track 1, and the bottom of the wall panel and the bottom track 2; push the wall panel in laterally so that the snap-fit ​​rib 54 is inserted into the snap-fit ​​gap and forms a limiting fit with the arc-shaped snap-fit ​​part 32. S5 Disassembly during maintenance: Select the wall panel to be disassembled and tilt its bottom slightly outward; lift the wall panel upward, and use the inward spacing at both ends of the snap plate 53 to make the snap rib 54 disengage from the limit of the V-shaped snap strip 4, and make the top of the wall panel disengage from the constraint of the ceiling track 1; pull out the wall panel in parallel; in this disassembly step, it is not necessary to disassemble the ceiling track 1, the ground track 2, the vertical frame keel 3 and the L-shaped corner bracket; S6 Installation after maintenance: Take the new or replaced metal corrugated composite wall panel 5, repeat step S4, and re-insert the wall panel into its original position.

[0040] This method transforms the static advantages of the "suspended frame" into dynamic construction advantages. During installation, it utilizes the inward-retracting snap-fit ​​plate 53 and elastic snap-fit; during disassembly, it leverages the flexibility of the wall panels, releasing the bottom support through a slight tilt, releasing the top constraint through lifting, and finally separating them by pulling them out. The entire process requires no contact with any frame components. This transforms the wall panels from "disposable decoration materials" into "recyclable building components," making them particularly suitable for places like hospitals and shopping malls that require frequent updates or renovations without shutting down, significantly reducing the total life-cycle cost.

[0041] Between step S3 and step S4, there is also a bottom support installation step: S31: Install bottom support components on the bottom inner side of the vertical frame keel 3; The bottom support is embedded in the 20mm to 50mm inspection seam as claimed in claim 4; In step S4, after the metal corrugated composite wall panel 5 is installed in place, its bottom folded edge is supported on the upper surface of the bottom support. During the disassembly process in step S5, when the bottom of the wall panel tilts slightly outward, the bottom folded edge detaches from the bottom support. In the reinstallation process of step S6, after the wall panel is reinstalled, its bottom folded edge is once again supported on the bottom support.

[0042] This step clarifies that the bottom support component is not included with the wall panel at the factory, but is inserted on-site after the V-shaped strip is installed and before the wall panel. It details the dynamic role of the support component throughout its entire lifecycle of "installation-removal-reinstallation" (support → detachment → re-support).

[0043] To verify the technical effectiveness of this solution, mechanical property tests were conducted on the finished product of this embodiment, and the results are as follows: Wall panel impact resistance: 5J, no breakage; Static load deformation: ≤0.8mm; Wall flatness: ≤2mm / 2m; Disassembly and reassembly cycles: ≥50 times without loosening or damage.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A suspended, snap-fit ​​steel wall panel system with top and bottom rails, characterized in that, include: The ceiling track (1), the ground track (2), several vertical frame keels (3), V-shaped buckle strips (4) and metal corrugated composite wall panels (5); The overhead track (1) is fixed to the top surface structure; the ground track (2) is fixed to the ground surface structure; The vertical frame keel (3) is a U-shaped profile with inward flanges (31) at both ends. There is a gap between the two inward flanges (31) to form a snap-fit ​​channel and it turns inward to form an arc-shaped snap-fit ​​part (32). The upper and lower ends of the vertical frame keel (3) are respectively inserted into the ceiling rail (1) and the ground rail (2) to form an independent suspended support frame. No horizontal secondary keel is set between the vertical frame keels (3). The V-shaped buckle strip (4) is a V-shaped profile, which is located on the inner side of the vertical frame keel (3). The top end of the V-shaped buckle strip (4) faces outward. The two ends of the V-shaped buckle strip (4) are provided with bottom edges (41) and are attached to the inner side wall of the vertical frame keel (3). The top end of the V-shaped buckle strip (4) extends out of the vertical frame keel (3). The V-shaped buckle strip (4) and the arc-shaped buckle part (32) surround and form a buckle gap. The metal corrugated composite wall panel (5) is made by hot pressing a 0.6mm to 1.2mm film-coated steel plate surface layer (51) and a 0.2mm to 0.5mm aluminum corrugated core (52), with a corrugated core wave height of 8mm to 20mm. The two sides of the metal corrugated composite wall panel (5) are extended to form a snap-fit ​​plate (53). The inner side wall of the snap-fit ​​plate (53) is provided with an inwardly protruding snap-fit ​​rib (54). During installation, the snap-fit ​​rib (54) is inserted into the snap-fit ​​gap and forms a snap-fit ​​structure with the arc-shaped snap-fit ​​part (32) for limiting cooperation.

2. The suspended snap-fit ​​steel wall panel system according to claim 1, characterized in that: The ceiling rail (1) is a U-shaped steel with its opening facing downwards, and the floor rail (2) is a U-shaped steel with its opening facing upwards; the top structure is a structural floor slab or a ceiling decorative panel, and the ceiling rail (1) is fixed to the top structure with self-tapping screws; the floor structure is a structural floor slab or a floor decorative surface layer, and the floor rail (2) is fixed to the floor structure with self-tapping screws.

3. The suspended snap-on steel wall panel system according to claim 2, characterized in that: The arc-shaped snap-fit ​​part (32) is an arc surface formed by rolling the end of the inner flange (31) inward. The snap-fit ​​rib (54) is a semi-circular arc rib that protrudes inward on the inner side wall of the snap-fit ​​plate (53). The outer arc surface of the snap-fit ​​rib (54) and the inner arc surface of the arc-shaped snap-fit ​​part (32) are adapted to each other to form an elastic snap-fit ​​fit with line contact or surface contact.

4. The suspended snap-on steel wall panel system according to claim 3, characterized in that: The bottom of the metal corrugated composite wall panel (5) has an inspection joint (6) of 20mm to 50mm between it and the ground. A bottom support of matching size is provided in the inspection joint (6), and the metal corrugated composite wall panel (5) is supported on the bottom support.

5. A suspended snap-on steel wall panel system with top and bottom rails according to claim 4, characterized in that: It also includes several L-shaped corner brackets (7) arranged at intervals; one end of the L-shaped corner bracket (7) is anchored to the base of the building wall, and the other end is connected to one side of the vertical frame keel (3).

6. The suspended snap-fit ​​steel wall panel system according to claim 5, characterized in that: The two ends of the snap-fit ​​plate (53) are spaced inwardly from the two ends of the metal corrugated composite wall panel (5).

7. A suspended snap-fit ​​steel wall panel system with top and bottom rails according to claim 6, characterized in that: The metal corrugated composite wall panel (5) is made of a 0.8mm film-coated steel plate surface layer (51) and a 0.3mm aluminum corrugated core (52) by hot pressing. The corrugated core has a wave height of 12mm and a total thickness of 18mm including the snap-fit ​​plate (53).

8. A construction method for a suspended snap-fit ​​steel wall panel system according to any one of claims 1-7, characterized in that: Includes the following steps, S1 Ground Track (2) Installation: Mark the control lines for the installation of the ceiling rail (1) on the top structure and the control lines for the installation of the ground rail (2) on the ground structure. Fix the ceiling rail (1) to the top structure with self-tapping screws and lay the ground rail (2) on the ground structure and fix it with self-tapping screws to ensure that the ceiling rail (1) and the ground rail (2) are aligned in the vertical direction. S2 Vertical keel and L-shaped angle bracket installation: Several L-shaped corner brackets are evenly spaced along the height direction of the vertical frame keel (3), and one end of the L-shaped corner bracket is anchored to the base of the building wall; the upper and lower ends of the vertical frame keel (3) are inserted into the top track (1) and the bottom track (2) respectively, and after adjusting the verticality, the other end of the L-shaped corner bracket is connected to the vertical frame keel (3), so that the vertical frame keel (3) forms a suspended state that is only limited by the side. S3 V-shaped buckle strip (4) installation: Place the V-shaped buckle strip (4) on the inside of the vertical frame keel (3), with the top end of the V-shaped buckle strip (4) facing outward and the bottom end locked in the mounting groove inside the vertical frame keel (3) to form a locking gap. S4 wall panel installation: Take a metal corrugated composite wall panel (5), and use the inward spacing between the two ends of the snap-fit ​​plate (53) and the edge of the wall panel to avoid interference between the top of the wall panel and the ceiling track (1) and the bottom of the wall panel and the floor track (2); push the wall panel in laterally so that the snap-fit ​​rib (54) is inserted into the snap-fit ​​gap and forms a limiting fit with the arc-shaped snap-fit ​​part (32); S5 Disassembly during maintenance: Select the wall panel to be disassembled and tilt its bottom slightly outward; Lift the wall panel upwards and use the inward spacing at both ends of the snap plate (53) to make the snap rib (54) break free from the limit of the V-shaped snap strip (4) and make the top of the wall panel break free from the constraint of the ceiling track (1); pull out the wall panel in parallel; in this disassembly step, it is not necessary to disassemble the ceiling track (1), the ground track (2), the vertical frame keel (3) and the L-shaped corner bracket. S6 Installation after maintenance: Take the new or replaced metal corrugated composite wall panel (5), repeat step S4, and re-insert the wall panel into its original position.

9. The construction method of a suspended snap-fit ​​steel wall panel system according to claim 8, characterized in that, Between step S3 and step S4, there is also a bottom support installation step: S31: Install bottom support components on the bottom inner side of the vertical frame keel (3); The bottom support is embedded in the 20mm-50mm inspection seam (6) as described in claim 4; In step S4, after the metal corrugated composite wall panel (5) is installed in place, its bottom folded edge is supported on the upper surface of the bottom support member; During the disassembly process in step S5, when the bottom of the wall panel tilts slightly outward, the bottom folded edge disengages from the bottom support. In the reinstallation process of step S6, after the wall panel is reinstalled, its bottom folded edge is once again supported on the bottom support.

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