Aluminum frame wood plastic formwork for building construction

Abstract

The application discloses a kind of aluminium frame wood plastic formworks for building construction, it is related to building formwork field.The formwork main part is constituted by wood plastic panel and aluminium alloy frame, the assembly component for facilitating wood plastic panel quick disassembly is equipped in the aluminium alloy frame, the assembly component includes the assembly groove of setting in the surface of aluminium alloy frame, the fixed bolt is fixedly installed on the outer wall of wood plastic panel, and the limit recess is opened in the outer wall of fixed bolt, the fastening component for preventing wood plastic panel separation is equipped in the aluminium alloy frame.The application realizes the quick disassembly of wood plastic panel by setting assembly component, shortens panel replacement working hours, improves assembly efficiency;By setting fastening component, the panel loosening, warping is inhibited, and the quality of concrete pouring forming is guaranteed;Single screw synchronous drive two sets of mechanisms, without multiple operating components, adapt to large quantities of floor turnover construction, reduce construction labor intensity, prolong the service life of formwork.

Description

Technical Field

[0001] This invention relates to the field of building formwork technology, specifically to an aluminum-framed wood-plastic formwork for building construction. Background Technology

[0002] During the pouring of building floor slabs, aluminum frame wood-plastic formwork combines the high strength of aluminum alloy frames with the advantages of lightweight and easy demolding of wood-plastic panels. It is used as a concrete pouring and forming tool for floor slab concrete forming operations. As an important component of prefabricated building construction, the existing aluminum frame wood-plastic formwork is widely used in the on-site pouring construction of floor slabs in high-rise residential buildings and commercial buildings.

[0003] Existing aluminum-framed wood-plastic composite formwork for building floor slab construction typically employs a bolt-locking assembly structure, mainly composed of an aluminum alloy frame, wood-plastic composite panels, and multiple sets of fixing bolts. During assembly, the wood-plastic composite panels are placed against the surface of the aluminum alloy frame, aligned with pre-drilled mounting holes, and then secured to the frame with multiple sets of fixing bolts using tools. After assembly, the formwork is used for concrete pouring. When the wood-plastic composite panels crack or become worn, all fixing bolts must be removed one by one using tools to disassemble and replace the panels. This formwork structure has good overall rigidity and can meet the requirements for foundation concrete pouring, making it widely used in various building construction sites.

[0004] However, the assembly and disassembly of wood-plastic panels and aluminum alloy frames require the individual tightening of multiple sets of fixing bolts, making the assembly and disassembly process cumbersome and consuming a lot of manpower. The efficiency of replacing damaged panels on the construction site is low, which slows down the turnover speed of the formwork and directly affects the overall assembly progress of the floor slab construction. It is difficult to meet the construction needs of rapid disassembly and efficient turnover of formwork on the construction site. Therefore, further improvements are needed. Summary of the Invention

[0005] The purpose of this invention is to provide an aluminum frame wood-plastic formwork for building construction, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an aluminum frame wood-plastic formwork for building construction, comprising a formwork body, wherein the formwork body is composed of a wood-plastic panel and an aluminum alloy frame; The aluminum alloy frame is equipped with an assembly component that facilitates quick assembly and disassembly of the wood-plastic panel. The assembly component includes an assembly groove on the surface of the aluminum alloy frame. A fixing bolt is fixedly installed on the outer wall of the wood-plastic panel, and a limiting groove is opened on the outer wall of the fixing bolt. A limiting frame is slidably installed on the inner wall of the aluminum alloy frame, and a limiting block is fixedly installed on the side wall of the limiting frame. The aluminum alloy frame is equipped with a fastening component to prevent the wood-plastic panel from separating. The assembly assembly further comprises a linkage plate slidably mounted in the middle of the aluminum alloy frame, a driving guide groove is formed on the surface of the linkage plate, a driving screw is mounted in the middle of the aluminum alloy frame through a bearing, and the driving screw is in threaded connection with the linkage plate; The linkage plate is arranged in parallel with the wood-plastic panel, the driving screw is arranged in parallel with the linkage plate, the linkage plate is located between the wood-plastic panel and the driving screw, two sets of the driving guide grooves are symmetrically formed, the two sets of driving guide grooves are combined in a splayed design, and the end of the limit frame is slidably connected with the driving guide grooves.

[0007] Preferably, the assembly groove is adapted to the wood-plastic panel, the depth of the assembly groove is the same as the thickness of the wood-plastic panel, and the surface of the aluminum alloy frame is flush with the surface of the wood-plastic panel in the installed state.

[0008] Preferably, the fixing bolts are distributed at equal intervals along the peripheral edge of the wood-plastic panel, the cross-section of the fixing bolt is of a T-shaped design, the surface of the fixing bolt is flush with the surface of the wood-plastic panel, the limit groove is of a circular ring design, the limit groove is located at the end of the fixing bolt away from the wood-plastic panel, and the outer wall of the aluminum alloy frame is provided with a through hole adapted to the fixing bolt.

[0009] Preferably, the limit frame is of a rectangular frame design as a whole, two sets of the limit frames are symmetrically arranged, the limit clamping blocks are arranged in one-to-one correspondence with the fixing bolts, the end of the limit clamping block is provided with a limit clamping groove, and the bottom of the limit clamping block is of an inclined design.

[0010] Preferably, the end of the limit clamping groove facing the fixing bolt is of an open design, the corner of the open end of the limit clamping groove is of a bevel design, the limit clamping groove is adapted to the limit groove, the length of the limit groove is greater than the thickness of the limit clamping block, and the inclined surface at the bottom of the limit clamping block abuts against the inner bottom of the limit groove in the limit state.

[0011] Preferably, the fastening assembly comprises a fastening pressure plate with a torsion spring mounted inside the aluminum alloy frame, the top of the fastening pressure plate is provided with a fastening pressure head, the side wall of the bottom of the fastening pressure plate is provided with an extrusion plate, and the bottom of the limit frame is provided with an extrusion convex block.

[0012] Preferably, the fastening pressure plates are distributed at equal intervals around the aluminum alloy frame, the cross-section of the fastening pressure head is of an L-shaped design, the side wall of the wood-plastic panel is provided with a fastening groove adapted to the fastening pressure head, and the end of the fastening pressure head abuts against the inner bottom of the fastening groove in the installed state.

[0013] Preferably, the extrusion plate is arranged perpendicular to the fastening pressure plate, the end of the extrusion convex block close to the extrusion plate is of an inclined surface design, and the inclined surface of the extrusion convex block abuts against the extrusion plate in the fastened state.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention uses a drive screw, a linkage plate, and a limiting frame to form an assembly component. Rotating the drive screw will cause the limiting block to engage with the limiting groove of the fixing bolt. This eliminates the traditional assembly method of tightening multiple bolts one by one, and eliminates the need for tools to disassemble and assemble bolts one by one. This significantly shortens the time required for disassembling and replacing wood-plastic panels and improves the efficiency of template turnover operations.

[0015] 2. This invention uses the displacement linkage of the limiting frame to squeeze the extrusion protrusion to squeeze the extrusion plate, which drives the fastening pressure plate to rotate so that the fastening pressure head is embedded in the fastening groove. The limiting block pulls down and locks in conjunction with the fastening pressure head to form a double constraint around the perimeter. This effectively inhibits the loosening, warping and displacement of the wood-plastic panel during concrete pouring, avoids deformation defects on the poured surface, and ensures the quality of the floor slab concrete pouring.

[0016] 3. This invention uses a single drive screw to synchronously drive the assembly and fastening components. Forward rotation locks the panel and presses it in all four directions, while reverse rotation unlocks both mechanisms simultaneously. The entire locking and pressing mechanism uses a single screw drive source, eliminating the need for multiple independent operating parts. It is suitable for large-scale formwork turnover scenarios in cast-in-place building floor slabs, reducing on-site construction labor intensity and extending the overall service life of the formwork. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention from another perspective; Figure 3 This is a schematic diagram of the cross-sectional structure of the aluminum alloy frame of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the wood-plastic composite panel and fastening bolt structure of the present invention; Figure 6 This is a schematic diagram of the assembly groove structure of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the wood-plastic composite panel of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B; Figure 9 This is a schematic diagram of the fastening component structure of the present invention; Figure 10 This is a schematic diagram of the limiting frame, limiting block, and extrusion protrusion structure of the present invention.

[0018] In the figures: 1. Formwork main body; 2. Wood-plastic panel; 201. Fastening groove; 3. Aluminum alloy frame; 301. Assembly groove; 4. Fixing bolt; 401. Limiting groove; 5. Limiting frame; 6. Limiting clamping block; 601. Limiting clamping groove; 7. Linkage plate; 701. Driving guide groove; 702. Driving screw rod; 8. Fastening pressing plate; 801. Fastening pressing head; 802. Extrusion plate; 9. Extrusion convex block. Detailed Description of the Embodiments

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0020] See Figures 1-10 , the present invention provides the following technical solution: An aluminum frame wood-plastic formwork for building construction, comprising a formwork main body 1. The formwork main body 1 is composed of a wood-plastic panel 2 and an aluminum alloy frame 3. An assembly component facilitating quick disassembly and assembly of the wood-plastic panel 2 is arranged inside the aluminum alloy frame 3. The assembly component includes an assembly groove 301 arranged on the surface of the aluminum alloy frame 3. A fixing bolt 4 is fixedly mounted on the outer wall of the wood-plastic panel 2, and a limiting groove 401 is formed on the outer wall of the fixing bolt 4. A limiting frame 5 is slidably mounted on the inner wall of the aluminum alloy frame 3, and a limiting clamping block 6 is fixedly mounted on the side wall of the limiting frame 5. A fastening component for preventing the wood-plastic panel 2 from separating is arranged inside the aluminum alloy frame 3.

[0021] As an embodiment of the present invention, the assembly groove 301 is adapted to the wood-plastic panel 2, and the depth of the assembly groove 301 is the same as the thickness of the wood-plastic panel 2. In the installed state, the surface of the aluminum alloy frame 3 is flush with the surface of the wood-plastic panel 2; As an embodiment of the present invention, the fixing bolts 4 are distributed at equal intervals along the peripheral edge of the wood-plastic panel 2, the cross section of the fixing bolt 4 is of a T-shaped design, the surface of the fixing bolt 4 is flush with the surface of the wood-plastic panel 2, the limiting groove 401 is of an annular design, the limiting groove 401 is located at the end of the fixing bolt 4 away from the wood-plastic panel 2, and a through hole adapted to the fixing bolt 4 is formed on the outer wall of the aluminum alloy frame 3; As an embodiment of the present invention, the limiting frame 5 is of a rectangular frame shape as a whole, two sets of the limiting frames 5 are symmetrically arranged, the limiting clamping blocks 6 are arranged in one-to-one correspondence with the fixing bolts 4, a limiting clamping groove 601 is formed at the end of the limiting clamping block 6, and the bottom of the limiting clamping block 6 is of an inclined design; As one embodiment of the present invention, the end of the limiting slot 601 facing the fixing bolt 4 is designed to be open, and the corner of the opening end of the limiting slot 601 is designed to be beveled. The limiting slot 601 is adapted to the limiting groove 401, the length of the limiting groove 401 is greater than the thickness of the limiting block 6, and the bottom slope of the limiting block 6 abuts against the bottom of the limiting groove 401 in the limiting state. As one embodiment of the present invention, the assembly assembly further includes a linkage plate 7 slidably installed in the middle of the aluminum alloy frame 3, and a drive guide groove 701 is provided on the surface of the linkage plate 7. A drive screw 702 is installed in the middle of the aluminum alloy frame 3 through a bearing, and the drive screw 702 is threadedly connected to the linkage plate 7. In one embodiment of the present invention, the linkage plate 7 is arranged in parallel with the wood-plastic panel 2, and the drive screw 702 is arranged in parallel with the linkage plate 7. The linkage plate 7 is located between the wood-plastic panel 2 and the drive screw 702. Two sets of drive guide grooves 701 are symmetrically opened, and the two sets of drive guide grooves 701 are combined in a figure-eight shape. The end of the limiting frame 5 is slidably connected to the drive guide groove 701. When assembling the template, align the wood-plastic panel 2, which is pre-fixed with fixing bolts 4 on all four sides, with the assembly slot 301 of the aluminum alloy frame 3. Place the entire wood-plastic panel 2 into the assembly slot 301, ensuring the depth of the assembly slot 301 matches the thickness of the wood-plastic panel 2. After assembly, the outer surface of the wood-plastic panel 2 should be flush with the surface of the aluminum alloy frame 3, completing the initial positioning of the panel. Then, rotate the drive screw 702 in the middle of the aluminum alloy frame 3. The threaded drive of the drive screw 702 causes the linkage plate 7 to shift, and the surface of the linkage plate 7... The octagonal drive guide groove 701 guides and drives the ends of the two sets of limiting frames 5, causing the two sets of U-shaped limiting frames 5 to slide away from each other; the limiting frames 5 drive multiple sets of limiting blocks 6 on the side wall to move towards the fixing bolt 4 simultaneously, and the fixing bolt 4 gradually enters the limiting groove 601 of the limiting block 6. The bottom inclined surface of the limiting block 6 abuts against the bottom of the limiting groove 401 at the end of the fixing bolt 4. The contact of the inclined surfaces generates a downward pulling force, which pulls the wood-plastic panel 2 towards the aluminum alloy frame 3 and limits its movement.

[0022] As one embodiment of the present invention, the fastening assembly includes a fastening pressure plate 8 with a torsion spring installed inside the aluminum alloy frame 3, and a fastening pressure head 801 is provided on the top of the fastening pressure plate 8, and an extrusion plate 802 is provided on the bottom side wall of the fastening pressure plate 8, and an extrusion protrusion 9 is provided at the bottom of the limiting frame 5. As one embodiment of the present invention, the fastening pressure plates 8 are evenly distributed around the aluminum alloy frame 3, the fastening pressure head 801 has an L-shaped cross section, and the side wall of the wood-plastic panel 2 is provided with a fastening groove 201 that is adapted to the fastening pressure head 801. In the installed state, the end of the fastening pressure head 801 abuts against the bottom of the fastening groove 201. In one embodiment of the present invention, the extrusion plate 802 and the fastening plate 8 are arranged perpendicularly, and the end of the extrusion protrusion 9 near the extrusion plate 802 is designed with an inclined surface. In the fastened state, the inclined surface of the extrusion protrusion 9 abuts against the extrusion plate 802. As the limiting frame 5 slides outward, the pressing protrusion 9 at the bottom of the limiting frame 5 moves synchronously. The inclined surface of the pressing protrusion 9 moves toward the pressing plate 802 and presses the pressing plate 802, pushing the fastening plate 8 to rotate against the torsion spring torque. After the fastening plate 8 rotates, the L-shaped fastening head 801 rotates and embeds into the fastening groove 201 on the side wall of the wood-plastic panel 2. Multiple sets of fastening heads 801 distributed around the perimeter synchronously press the perimeter edges of the wood-plastic panel 2, applying pressure and constraint to the wood-plastic panel 2 from all sides. The downward pull constraint of the limiting block 6 on the fixing bolt 4, combined with the lateral pressure of the fastening head 801, completes the assembly and locking between the wood-plastic panel 2 and the aluminum alloy frame 3 through double constraints. After the assembly is completed, the template can be put into the floor slab concrete pouring construction. During the pouring process, it can effectively inhibit the loosening, warping and displacement of the wood-plastic panel 2. When the wood-plastic panel 2 is worn, cracked, or damaged and needs to be disassembled and replaced, the drive screw 702 is rotated in the reverse direction. The drive screw 702 drives the linkage plate 7 to move in the reverse direction. The linkage plate 7 drives the two sets of limiting frames 5 to move towards each other by the "eight"-shaped drive guide groove 701. The limiting block 6 moves with the limiting frame 5. The limiting groove 601 disengages from the limiting groove 401 of the fixing bolt 4, releasing the pull-down lock on the fixing bolt 4. At the same time, the bottom pressing protrusion 9 of the limiting frame 5 moves synchronously with the frame. The inclined surface of the pressing protrusion 9 After disengaging from the extrusion plate 802, the fastening pressure plate 8 rotates back to its original position under the rebound torque of the torsion spring, and the fastening pressure head 801 then exits from the fastening groove 201 of the wood-plastic panel 2, releasing the pressure limit on all sides of the wood-plastic panel 2. At this time, the wood-plastic panel 2 is no longer constrained by the assembly components and fastening components, and the operator can directly remove the wood-plastic panel 2 from the assembly slot 301, realizing the quick separation of the wood-plastic panel 2 from the aluminum alloy frame 3, which is convenient for replacing the new wood-plastic panel 2 and carrying out the next round of assembly operations.

[0023] Working principle: When assembling the wood-plastic composite panel 2 using the aluminum frame wood-plastic formwork in this building construction, the operator aligns the wood-plastic composite panel 2, which is pre-fixed with fixing bolts 4 on all four sides, with the assembly groove 301 of the aluminum alloy frame 3. The wood-plastic composite panel 2 is then placed entirely into the assembly groove 301. The depth of the assembly groove 301 matches the thickness of the wood-plastic composite panel 2. After assembly, the outer surface of the wood-plastic composite panel 2 remains flush with the surface of the aluminum alloy frame 3, completing the initial positioning of the panel. Subsequently, the drive screw 702 in the middle of the aluminum alloy frame 3 is rotated. The threaded drive screw 702 drives the linkage plate. 7. Displacement is generated. The V-shaped drive guide groove 701 on the surface of the linkage plate 7 guides and drives the ends of the two sets of limiting frames 5, causing the two sets of U-shaped limiting frames 5 to slide away from each other. The limiting frames 5 drive multiple sets of limiting blocks 6 on the side wall to move closer to the fixing bolt 4 at the same time. The fixing bolt 4 gradually enters the limiting groove 601 of the limiting block 6. The bottom inclined surface of the limiting block 6 abuts against the bottom of the limiting groove 401 at the end of the fixing bolt 4. The inclined surface contact generates a downward pulling force, which pulls the wood-plastic panel 2 towards the aluminum alloy frame 3 for tight positioning. As the limiting frame 5 slides outward, the pressing protrusion 9 at the bottom of the limiting frame 5 moves synchronously. The inclined surface of the pressing protrusion 9 moves toward the pressing plate 802 and presses the pressing plate 802, pushing the fastening plate 8 to rotate against the torsion spring torque. After the fastening plate 8 rotates, the L-shaped fastening head 801 rotates and embeds into the fastening groove 201 on the side wall of the wood-plastic panel 2. Multiple sets of fastening heads 801 distributed around the perimeter synchronously press the perimeter edges of the wood-plastic panel 2, applying pressure and constraint to the wood-plastic panel 2 from all sides. The downward pull constraint of the limiting block 6 on the fixing bolt 4, combined with the lateral pressure of the fastening head 801, completes the assembly and locking between the wood-plastic panel 2 and the aluminum alloy frame 3 through double constraints. After the assembly is completed, the template can be put into the floor slab concrete pouring construction. During the pouring process, it can effectively inhibit the loosening, warping and displacement of the wood-plastic panel 2. When the wood-plastic panel 2 is worn, cracked, or damaged and needs to be disassembled and replaced, the drive screw 702 is rotated in the reverse direction. The drive screw 702 drives the linkage plate 7 to move in the reverse direction. The linkage plate 7 drives the two sets of limiting frames 5 to move towards each other by the figure-eight drive guide groove 701. The limiting block 6 moves with the limiting frame 5, and the limiting groove 601 disengages from the limiting groove 401 of the fixing bolt 4, releasing the pull-down lock on the fixing bolt 4. At the same time, the bottom pressing protrusion 9 of the limiting frame 5 moves synchronously with the frame, and the inclined surface of the pressing protrusion 9 and the frame move together. The extrusion plates 802 disengage from each other, and the fastening pressure plate 8 rotates back to its original position under the rebound torque of the torsion spring. The fastening pressure head 801 then exits from the fastening groove 201 of the wood-plastic panel 2, releasing the pressure limit on the wood-plastic panel 2 around its perimeter. At this time, the wood-plastic panel 2 is no longer constrained by the assembly components and fastening components, and the operator can directly remove the wood-plastic panel 2 from the assembly slot 301, realizing the rapid separation of the wood-plastic panel 2 from the aluminum alloy frame 3, which facilitates the replacement of a new wood-plastic panel 2 for the next round of assembly operations. The entire set of aluminum frame wood-plastic formwork for building construction relies on a single drive screw 702 to link the limiting frame 5 and the fastening pressure plate 8. A single turn can simultaneously complete the panel pull-down locking and the surrounding pressure. Turning in the opposite direction can unlock it completely, which greatly reduces the time spent on disassembling and replacing the panels on the construction site, speeds up the turnover of the formwork, and is suitable for the needs of large-scale formwork disassembly, assembly and turnover on the construction site of cast-in-place floor slabs, ensuring the stability of the panel connection under concrete pouring conditions.

[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An aluminum-framed wood-plastic formwork for building construction, comprising a formwork main body (1), wherein the formwork main body (1) is composed of a wood-plastic panel (2) and an aluminum alloy frame (3); Its features are: An assembly component facilitating quick disassembly and assembly of the wood-plastic panel (2) is arranged inside the aluminum alloy frame (3), the assembly component comprises an assembly groove (301) formed on the surface of the aluminum alloy frame (3), a fixing bolt (4) is fixedly mounted on the outer wall of the wood-plastic panel (2), a limit groove (401) is formed on the outer wall of the fixing bolt (4), a limit frame (5) is slidably mounted on the inner wall of the aluminum alloy frame (3), a limit clamping block (6) is fixedly mounted on the side wall of the limit frame (5), and a fastening component for preventing the wood-plastic panel (2) from separating is arranged inside the aluminum alloy frame (3); The assembly component further comprises a linkage plate (7) slidably mounted in the middle of the aluminum alloy frame (3), a driving guide groove (701) is formed on the surface of the linkage plate (7), a driving screw (702) is mounted in the middle of the aluminum alloy frame (3) through a bearing, and the driving screw (702) is in threaded connection with the linkage plate (7); The linkage plate (7) is arranged in parallel with the wood-plastic panel (2), the driving screw (702) is arranged in parallel with the linkage plate (7), the linkage plate (7) is located between the wood-plastic panel (2) and the driving screw (702), two sets of the driving guide grooves (701) are symmetrically formed, the two sets of driving guide grooves (701) are combined in a splayed design, and the end part of the limit frame (5) is slidably connected with the driving guide grooves (701).

2. The aluminum-framed wood-plastic formwork for building construction according to claim 1, characterized in that: The assembly groove (301) is adapted to the wood-plastic panel (2), the depth of the assembly groove (301) is the same as the thickness of the wood-plastic panel (2), and in the installed state, the surface of the aluminum alloy frame (3) is flush with the surface of the wood-plastic panel (2).

3. The aluminum-framed wood-plastic formwork for building construction according to claim 1, characterized in that: The fixing bolts (4) are distributed at equal intervals along the peripheral edge of the wood-plastic panel (2), the cross section of each fixing bolt (4) is of a T-shaped design, the surface of the fixing bolt (4) is flush with the surface of the wood-plastic panel (2), the limit groove (401) is of an annular design, the limit groove (401) is located at the end of the fixing bolt (4) away from the wood-plastic panel (2), and a through hole adapted to the fixing bolt (4) is formed on the outer wall of the aluminum alloy frame (3).

4. The aluminum-framed wood-plastic formwork for building construction according to claim 1, characterized in that: The limit frame (5) is of a rectangular frame design as a whole, two sets of the limit frames (5) are symmetrically arranged, the limit clamping blocks (6) are arranged in one-to-one correspondence with the fixing bolts (4), a limit clamping groove (601) is formed at the end of each limit clamping block (6), and the bottom of the limit clamping block (6) is of an inclined design.

5. The aluminum-framed wood-plastic formwork for building construction according to claim 4, characterized in that: The end of the limit clamping groove (601) facing the fixing bolt (4) is of an open design, the corner of the open end of the limit clamping groove (601) is of a bevel design, the limit clamping groove (601) is adapted to the limit groove (401), the length of the limit groove (401) is greater than the thickness of the limit clamping block (6), and in the limit state, the inclined surface at the bottom of the limit clamping block (6) abuts against the inner bottom of the limit groove (401).

6. The aluminum-framed wood-plastic formwork for building construction according to claim 1, characterized in that: The fastening assembly includes a fastening pressure plate (8) with a torsion spring installed inside the aluminum alloy frame (3), and the fastening pressure plate (8) has a fastening pressure head (801) on the top and an extrusion plate (802) on the bottom side wall of the fastening pressure plate (8), and the limiting frame (5) has an extrusion protrusion (9) at the bottom.

7. The aluminum-framed wood-plastic formwork for building construction according to claim 6, characterized in that: The fastening plates (8) are evenly distributed around the aluminum alloy frame (3). The fastening head (801) has an L-shaped cross-section, and the wood-plastic panel (2) has a fastening groove (201) on its side wall that is compatible with the fastening head (801). In the installed state, the end of the fastening head (801) abuts against the bottom of the fastening groove (201).

8. The aluminum-framed wood-plastic formwork for building construction according to claim 7, characterized in that: The extrusion plate (802) and the fastening plate (8) are arranged perpendicularly. The end of the extrusion protrusion (9) near the extrusion plate (802) is designed with an inclined surface. In the fastened state, the inclined surface of the extrusion protrusion (9) abuts against the extrusion plate (802).

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