A fast-release support system for building formwork

Abstract

A kind of building template quick-release support system, including several template components, the template component includes support rod assembly, support head assembly, keel, flat plate, corner connecting piece and fastener, wherein support rod assembly bottom is fixed to ground, support head assembly is adjustably installed at the top of support rod assembly, keel is arranged between adjacent support head assembly, flat plate is closely laid and is erected between adjacent keel, closed support plane is laid by multiple flat plates, and the material of all template components except support rod assembly is high molecular composite plastic;The present application reduces the weight of each plate, so that installation construction is more relaxed, and the various components of support assembly and assembled template are designed simply, simple to assemble and disassemble, strong operability, high efficiency, saves labor cost, reduces construction cost.

Description

Technical Field

[0001] This invention relates to the field of building formwork processing technology, specifically to a quick-release support system for building formwork. Background Technology

[0002] Currently, with increased national investment in infrastructure construction and the rise in real estate development projects, the construction industry is experiencing sustained growth. Globally, especially in developing countries, a construction boom is underway. The rapid development of the construction industry and the widespread application of cast-in-place concrete have created a strong market demand for formwork combination structures. Construction formwork systems are characterized by ingenious design, simple and quick assembly and disassembly, high production efficiency, flexible and convenient adjustment, and high reusability. They meet the diverse needs of cast-in-place concrete beams, slabs, columns, and shear walls, and help improve the quality of cast-in-place concrete projects. Furthermore, they save a significant amount of timber, aligning with my country's energy conservation and emission reduction policies. Therefore, they have broad market prospects.

[0003] Construction formwork is a temporary support structure, manufactured according to design requirements, to shape concrete structures and components into specified positions and geometric dimensions, maintain their correct position, and bear the self-weight of the formwork and external loads acting on it. The purpose of formwork engineering is to ensure the quality and safety of concrete engineering, accelerate construction progress, and reduce project costs. Construction formwork structures mainly consist of three parts: panels, supporting structures, and connectors. The panels are the supporting frames that directly contact the freshly poured concrete; the supporting structures are temporary structures that support the panels, concrete, and construction loads, ensuring the construction formwork structure is firmly assembled and does not deform or break; connectors are the accessories that connect the panels and supporting structures into a whole.

[0004] The majority of prefabricated formwork used in existing technologies is made of aluminum alloy. However, due to the inherent properties of aluminum alloy, some defects in aluminum alloy formwork are difficult to overcome. Commonly reported drawbacks include: 1) High cost, limiting its use to some large state-owned enterprises or high-rise buildings; 2) Chemical reaction between aluminum and cement ash, making the application of formwork release agent cumbersome and contaminating the reinforcing steel, creating quality risks; 3) Prone to rigid deformation, causing assembly difficulties, reducing efficiency, and sometimes requiring factory repairs before use, impacting construction schedules; 4) High density and weight of individual panels, making them difficult for workers to handle; 5) High thermal conductivity, with surface temperatures exceeding 50°C after sun exposure in hot weather, making construction difficult, and extremely cold to the touch in winter, discouraging workers from operating; 6) Difficult dismantling, especially at internal corners, and generating significant noise. Therefore, although aluminum alloy formwork has seen rapid development, its market share remains small compared to the overall formwork market.

[0005] To avoid the shortcomings of aluminum alloy formwork, various types of modular formwork have emerged, including plastic formwork. However, their development has been slow, and market acceptance is low. This is mainly due to their low strength, numerous specifications, and complex structures. Low strength prevents the implementation of quick-release systems, resulting in construction methods similar to traditional methods, which increases costs and hinders market acceptance. Numerous specifications and complex structures require a large number of molds, which cannot keep up with production demands, preventing complete assembly and leading to customer attrition. Slow assembly speeds and high labor costs further exacerbate the problem. Therefore, plastic modular formwork has not achieved widespread adoption.

[0006] Therefore, the current formwork support system generally suffers from the following problems: First, the connection relationships between different formwork components in the structure are complex, requiring a lot of time during assembly, resulting in low overall formwork assembly efficiency; second, traditional formwork components are usually made of aluminum alloy, resulting in heavy weight, increasing the difficulty of handling during construction, and bringing a series of problems; third, the connecting surfaces of different formwork components in the existing formwork are in close contact, and after long-term use, they will stick together, affecting disassembly and potentially damaging the formwork components, affecting reuse; fourth, the structural strength of the formwork is insufficient, leading to complex construction, inability to be easily disassembled and assembled, and insufficient safety performance.

[0007] Therefore, there is a need for a building formwork support system that is more efficient to build, has lighter formwork components, is less prone to damage when connecting formwork components, and has high structural strength. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a quick-release support system for building formwork, which solves the problems of complex connection relationships, excessive weight increasing construction difficulty, overly tight contact surfaces of formwork components leading to difficulties in disassembly and damage to components after prolonged use, and insufficient structural strength in existing building formwork support structures.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A quick-release support system for building formwork includes several formwork components. Each formwork component includes a support rod assembly, a support head assembly, keels, flat plates, corner connectors, and fasteners. The support rod assembly is fixed to the ground at its bottom. The support head assembly is adjustablely installed on top of the support rod assembly. Keels are positioned between adjacent support head assemblies. Flat plates are laid tightly and flat between adjacent keels, forming a closed support plane. The corner connectors are located at the intersections of keels or flat plates with walls or beams / columns for transition. Fasteners are located at the joints of the remaining components for locking and fixing, thus forming a complete building formwork. All formwork components except the support rod assembly are made of high-polymer composite plastic.

[0011] Furthermore, the support rod assembly includes a hollow fixed rod and a movable rod. The fixed rod is vertically arranged and its bottom end is fixedly installed on the ground or a base material. The movable rod is movably coaxially sleeved inside the fixed rod, and the movable rod and the fixed rod can switch between a mutually fixed state and a mutually movable state.

[0012] Preferably, the fixed rod is a hollow rod, and the bottom end of the movable rod is coaxially sleeved inside the fixed rod. The upper and lower ends of the movable rod are respectively provided with upper threads and lower threads, wherein upper nuts and lower nuts with threaded connections are respectively sleeved on the upper threads and lower threads. The upper nut cooperates with the support head assembly, and the lower nut cooperates with the fixed rod to realize the adjustment function relative to the movable rod.

[0013] Preferably, the upper nut and the lower nut are frustum-shaped, including a force-bearing end and a non-force-bearing end, wherein the force-bearing end is located at the end with a larger diameter and the non-force-bearing end is located at the end with a smaller diameter. The force-bearing end of the lower nut faces downward and cooperates with the outer diameter of the top of the fixed rod to support the movable rod; the force-bearing end of the upper nut faces upward and cooperates with the support head assembly to fix it.

[0014] Furthermore, the support head assembly includes a support frame and a support head. The support frame is plate-shaped with a through positioning hole in its middle. The support frame is sleeved and connected to the top of the movable rod through the positioning hole. Space is left around the support frame to cooperate with the supporting keel and the plate. The support head is a square box structure with an open bottom and is fastened on top of the support frame without affecting the contact between the support frame and the keel and the plate.

[0015] Preferably, the support frame includes a support plate, flanges protruding from both sides of the support plate, a positioning hole located in the center of the support plate, and a positioning reinforcement ring with a corresponding positioning hole located at the bottom of the support plate. The two ends of the flanges are shorter than the length of the support plate to leave space for supporting the keel. The support plate is also provided with guard plates at the side edges of both ends that extend beyond the flanges.

[0016] Preferably, a pad is provided in the middle of the inner side of the top plate of the support head, and a positioning ring is vertically installed on the pad, the inner diameter of the positioning ring matching the diameter of the positioning hole.

[0017] Furthermore, the keel is a hollow, closed structure. Symmetrical and identical side wings protrude from both sides of the cross-section along the vertical length direction of the keel, making its cross-sectional shape "convex". The end face dimensions of the keel match one side of the support frame and the outer sides of two opposite side plates of the support head. The height of the keel, excluding the side wings, matches the thickness of the flat plate, so that the top of the flat plate forms a smooth plane when it is placed on the keel.

[0018] Preferably, the height of the keel, excluding the side wings, is matched with the thickness of the flat plate, so that the top of the flat plate forms a smooth plane when it is placed on the keel, and irregularly shaped connecting holes are provided on the end face of the keel.

[0019] Furthermore, the flat plate includes a hollow, closed plate surface and several back ribs disposed on the bottom surface of the plate surface. The back ribs are evenly spaced along the long side of the plate surface. Side ribs of the same size as the back ribs are disposed on both sides of the plate surface. Flat plate baffles that are perpendicular to both the plate surface and the side ribs are also disposed at both ends of the plate surface.

[0020] Furthermore, the corner connector includes an inside corner, a keel corner, and an inside corner bend. The inside corner is used to connect mutually perpendicular flat plates at the intersection of a wall column or beam. The inside corner includes a bent plate, a connecting plate, and an inside corner baffle. The bent plate includes two mutually perpendicular plates connected on one side, and its structure is the same as the surface of the flat plate. The connecting plate is respectively vertically set on the edges of the bent plate that are not in contact with the other two sides, and its structure is the same as the side ribs of the flat plate. The inside corner baffle is set on the end face of the inside corner and is used to cooperate with other connecting structures.

[0021] Furthermore, the keel corner is used to connect mutually perpendicular flat plates and keels at the intersection of wall columns or beams. The keel corner is a polygonal shell structure, including a keel connecting surface, a flat plate connecting surface, an inside corner connecting surface, and a load-bearing surface. The load-bearing surface includes two perpendicularly intersecting plate structures. The keel connecting surface and the flat plate connecting surface are respectively perpendicularly set at the edges of the two plate structures on the load-bearing surface. The inside corner connecting surface is set on both sides of the load-bearing surface and is perpendicular to the two plates on the load-bearing surface.

[0022] Furthermore, the inside corner bend is used to connect different inside corners. The inside corner bend has a square shell structure, in which three mutually perpendicular and intersecting surfaces are load-bearing surfaces, and the other three surfaces are mounting surfaces, used to connect with different inside corners.

[0023] Furthermore, the fasteners include U-shaped clips, right-angle clips, and C-shaped clips. The U-shaped clips are used to fasten between the side ribs of different flat plates, between the side ribs of the flat plate and the internal corner connecting plate, between the flat plate baffle and the internal corner connecting plate, and between the internal corner baffles of different internal corners. The U-shaped clips are used in conjunction with the circular connecting holes on other template components. The U-shaped clips include a positioning shaft, a rotating arm, and a retaining ring connected in sequence. The positioning shaft and the rotating arm are straight rods connected perpendicularly to each other. The retaining ring is a U-shaped rod. One end of the rotating arm is fixed to one end of the retaining ring perpendicular to the plane where the retaining ring is located, so that the projection of the positioning shaft on the plane where the retaining ring is located points from one end of the retaining ring to the other end.

[0024] Furthermore, the right-angle buckle is used to fasten the support head and the keel, the inside corner and the inside corner bend, and the inside corner baffles of different inside corners. The right-angle buckle is used in conjunction with the irregular connecting holes set on other template components. The right-angle buckle includes a front locking position, a rear locking position, a rotating shaft and a handle. The front locking position and the rear locking position are respectively set at both ends of the rotating shaft. The front locking position is a strip perpendicular to the rotating shaft, and the rear locking position is a disc. The handle is L-shaped, and one end of the handle is coaxially set at the end of the rotating shaft near the rear locking position.

[0025] Furthermore, the C-type clip is used for fastening between the keel and the flat plate erected on the keel. The C-type clip includes a fixed clip post, a movable clip post, a clip guide rail, a positioning post, a pin groove, and a pin piece. The fixed clip post is vertically fixed at one end of the clip guide rail. The movable clip post is parallel to the fixed clip post and movably sleeved on the clip guide rail. The positioning post is correspondingly arranged on the opposite side of the fixed clip post and the movable clip post, thereby achieving clamping and fixing. The pin groove is arranged on the clip guide rail corresponding to the movable clip post's movable range. The pin piece is close to the side of the movable clip post and is engaged in the pin groove.

[0026] Furthermore, the side ribs and baffles of the flat plate, the internal corner connecting surface of the keel corner, the internal corner baffle and connecting plate of the internal corner, and the mounting surface of the internal corner are all provided with circular connecting holes; the support head is provided with irregularly shaped connecting holes on the side surface of the keel, the end face of the keel, the keel connecting surface and internal corner connecting surface of the keel corner, the internal corner baffle of the internal corner, and the mounting surface of the internal corner. The irregularly shaped connecting holes are strip-shaped holes, and a circular through hole is overlapped in the middle of the strip-shaped holes.

[0027] Furthermore, each of the component planes containing the irregularly shaped connecting holes is provided with protruding reinforcing ribs. The reinforcing ribs are located at the edges or corners of the plane. The reinforcing ribs are provided continuously or intermittently. The irregularly shaped connecting holes and circular connecting holes on the same plane are also surrounded by reinforcing ribs of the same thickness. The shape and position of the reinforcing ribs on the contacting component planes are corresponding. The horizontal strip area corresponding to the circular connecting hole on the component plane is provided with an inward recess.

[0028] Furthermore, a metal frame liner is provided on the inner side of the keel and the inner side of the back rib in the plate. The liner is embedded in the keel and the back rib and is tightly connected to their inner sides.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. This invention reduces the weight of each board, making installation easier. The density of the high-polymer composite plastic template material used in this invention is about half that of aluminum. With the addition of the reinforcing metal inner lining tube, the weight of a single board is also less than 75% of that of aluminum alloy templates of the same specifications.

[0031] 2. Precise dimensions and minimal error: Among all assembled components, the support heads, keel corner connectors, and internal corners are particularly well-preserved. Internal corner baffles and keel baffles are injection-molded parts, with dimensional errors controlled within 0.1mm; flat panels and internal corner keels are extruded profiles, with dimensional errors controlled within 0.2mm. Minimal formwork error ensures the accuracy of concrete structure dimensions, further guaranteeing the precision and safety of the overall construction project.

[0032] 3. The material has a low surface friction coefficient, making it easy to demold after concrete pouring. The formwork surface does not stick to concrete, and only needs to be cleaned with water before each use. There is no need to apply a special release agent, which reduces the cost of use and labor.

[0033] 4. The material has high plasticity and will not undergo rigid deformation during use. Therefore, the fasteners used only need to be snap-fit ​​to meet the requirements. The snap-fit ​​is easy and quick to install and remove, highly efficient, and can save labor and reduce costs.

[0034] 5. Embed metal liners of the same cross section in the back ribs and keels of the flat plate, so that the bending modulus reaches or even exceeds the level required by the specifications of similar products. Only independent support rods (with diagonal bracing according to the specifications) are needed to meet the support requirements of the floor slab formwork. There is no need to put wooden blocks or square steel pipes under the floor slab formwork.

[0035] 6. Plastic materials have low thermal conductivity, so they are not hot to the touch in hot weather or cold weather when workers are handling them, making them easy to operate;

[0036] 7. The supporting components and various parts of the assembled formwork are designed to be simple, easy to assemble and disassemble, highly operable, and efficient, saving labor costs and reducing construction costs.

[0037] (1) Construction of support rod assembly: The support rod is mainly composed of a fixed rod at the bottom and a movable rod at the top. No drilling or welding is required. During construction, the fixed rod is vertically fixed to the floor. The position of the upper nut is adjusted according to the floor height so that it basically meets the required height. The force-bearing end of the nut is facing down. The movable rod is inserted into the fixed rod so that the lower nut is stuck in the outer end of the steel pipe. Then, the nut is rotated to adjust the movable rod to the required height. The installation is then complete. There is no need for tedious work such as drilling holes, slotting, and inserting steel bars on the fixed rod.

[0038] (2) Construction of support frame, support head, and keel: The support rod assembly and upper and lower nuts are pre-assembled integrated structures, which do not need to be reassembled on the construction site. After the support rod is erected, insert the positioning ring in the support head into the upper end of the movable rod. After aligning the two ends of the support head with the keel, insert the right-angle buckle and rotate 90°. The installation of the keel and support head is then completed. Then rotate the upper nut in the movable rod so that the force-bearing end of the upper nut presses against the positioning reinforcement ring at the bottom of the support frame. Then rotate the lower nut and adjust the height of the movable rod so that the top surface of the support frame coincides with the bottom surface of the keel. The installation is then complete. When dismantling, rotate the lower nut downward to lower the movable rod, rotate the right-angle buckle on the keel baffle 90°, and take out the keel. The dismantling is then complete. The whole installation process is simple and convenient, and the operation is efficient and quick.

[0039] (3) The support head corresponds to the side of the keel, the end face of the keel, the keel connection surface and the inside corner connection surface of the keel corner, the inside corner baffle, and the mounting surface of the inside corner. All these connection surfaces are designed with protruding planes and completely corresponding reinforcing ribs. After installation, the contact area between the two splicing surfaces is limited to the surface area of ​​the reinforcing ribs. Compared with the entire splicing surface, the contact area is very small. In addition, the material itself has a low coefficient of friction. Therefore, the frictional resistance between the splicing surfaces is very small when the template is removed, and it is easy to remove. Correspondingly, during long-term use, due to the small contact area, there will be no problem of the template components sticking together. The template components will not be damaged during the removal process, which is conducive to reuse and reduces costs.

[0040] (4) The use of keel corner connectors makes the most difficult-to-remove inside corners easier to remove. The keel corner connectors are connected to the inside corners perpendicular to the keel direction on both sides and connected to the wall beam formwork at the bottom. They are constrained by three surfaces and have sufficient support to bear the load of the keel. The design of the inside corner also makes the installation and removal of the formwork simple. The installation and removal of other similar metal products at inside corners is a difficult point, especially when removing them. Because they are turning components, the metal reacts with the concrete and is tightly bonded, which consumes a lot of time. This invention designs this part as a cube, which reduces the contact area by two-thirds. Therefore, the removal of the formwork at the inside corner is no longer a difficult point. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the support rod assembly;

[0042] Figure 2 This is a structural diagram of the support frame;

[0043] Figure 3 This is a structural diagram of the support head;

[0044] Figure 4 This is a schematic diagram showing the installation between the support rod assembly and the support frame;

[0045] Figure 5 This is a structural diagram of the keel;

[0046] Figure 6 This is a schematic diagram showing the installation between the support rod assembly, the support head assembly, and the keel.

[0047] Figure 7 This is a structural diagram of an inside corner;

[0048] Figure 8 This is a structural diagram of the keel corner;

[0049] Figure 9 This is a structural diagram of an inside corner.

[0050] Figure 10 This is a structural diagram of a flat plate;

[0051] Figure 11 This is a structural diagram of a U-shaped buckle;

[0052] Figure 12 This is a structural diagram of a right-angle buckle;

[0053] Figure 13 This is a structural diagram of a C-type card;

[0054] Figure 14 This is a schematic diagram showing the installation between the keel corner and the keel, inside corner, and flat plate;

[0055] Figure 15 This is a schematic diagram showing the installation between two inside corners;

[0056] Figure 16 This is a schematic diagram showing the installation of the support rod assembly, support head assembly, keel, keel corner, inside corner, and inside corner joint;

[0057] Figure 17 This is a schematic diagram showing the installation of the C-type card with the keel and flat plate;

[0058] Figure 18 This is a schematic diagram showing the cross-section of the end face of the keel.

[0059] Figure 19 This is a schematic diagram showing the cross-section of the end face of the flat plate.

[0060] Figure 20 This is a schematic diagram showing the invention after installation on a horizontal plane;

[0061] Figure 21 This is a schematic diagram showing the entire installation of the invention on a single floor.

[0062] In the diagram: 1. Support rod assembly; 2. Support frame; 3. Support head; 4. Keel; 5. Internal corner; 6. Keel corner; 7. Internal corner; 8. Flat plate; 9. U-shaped buckle; 10. Right-angle buckle; 11. C-shaped buckle; 12. Circular connecting hole; 13. Irregular connecting hole; 14. Reinforcing rib; 15. Reinforcing strip; 16. Lining; 21. Support plate; 22. Flanged edge; 23. Positioning hole; 24. Positioning reinforcement ring; 31. Positioning ring; 32. Pad; 41. Keel end face; 42. Side wing; 51. Bending plate; 52. Connecting plate; 53. Internal corner baffle; 61. Keel connecting surface; 62. Flat plate connecting surface; 63. 64. Internal corner connection surface; 65. Load-bearing surface; 71. Cantilever section; 72. Mounting surface; 73. Bearing surface; 84. Panel surface; 85. Back rib; 86. Side rib; 87. Flat plate baffle; 98. Positioning shaft; 99. Rotating arm; 90. Snap ring; 101. Front locking position; 102. Rear locking position; 103. Rotating shaft; 104. Handle; 111. Fixed locking post; 112. Movable locking post; 113. Snap-on guide rail; 114. Positioning post; 115. Pin groove; 116. Pin piece; 110. Fixed rod; 120. Movable rod; 130. Upper nut; 140. Lower nut; 150. Reinforcing nut; 160. Rotating handle. Detailed Implementation

[0063] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0064] Example:

[0065] This invention proposes a quick-release support system for building formwork, comprising several formwork components. Each formwork component includes a support rod assembly 1, a support head assembly, keels 4, flat plates 8, corner connectors, and fasteners. The support rod assembly 1 is fixed to the ground at its bottom. The support head assembly is adjustablely installed on top of the support rod assembly 1. Keels 4 are erected between adjacent support head assemblies, and flat plates 8 are laid tightly and flat between adjacent keels 4. Multiple flat plates 8 are laid to form a closed support plane. The corner connectors are located at the intersections of keels 4 or flat plates 8 with walls or beams / columns for transition. The fasteners are located at the joints of the remaining components for locking and fixing, thus forming a complete building formwork. All formwork components except the support rod assembly 1 are made of high-polymer composite plastic.

[0066] like Figure 1 As shown, in this invention, the support rod assembly 1 includes a hollow fixed rod 110 and a movable rod 120. The fixed rod 110 is vertically arranged and its bottom end is fixedly installed on the ground or a base plate. The movable rod 120 is movably coaxially sleeved inside the fixed rod 110, and the movable rod 120 and the fixed rod 110 can switch between a mutually fixed state and a mutually movable state.

[0067] In this preferred embodiment, the fixed rod 110 is a hollow rod, and the bottom end of the movable rod 120 is coaxially sleeved inside the fixed rod 110. The upper and lower ends of the movable rod 120 are respectively provided with upper threads and lower threads, wherein the upper threads and lower threads are respectively sleeved with threaded upper nuts 130 and lower nuts 140. The upper nut 130 cooperates with the support head assembly, and the lower nut 140 cooperates with the fixed rod 110 to realize the adjustment function relative to the movable rod 120.

[0068] In a further preferred embodiment, the upper nut 130 and the lower nut 140 are frustum-shaped, including a force-bearing end and a non-force-bearing end, wherein the force-bearing end is located at the end with a larger diameter and the non-force-bearing end is located at the end with a smaller diameter. The force-bearing end of the lower nut 140 faces downward and cooperates with the outer diameter of the top of the fixed rod 110 to support the movable rod 120. The force-bearing end of the upper nut 130 faces upward and cooperates with the support frame 2 to achieve fixation. Preferably, the upper nut 130 and the lower nut 140 are also provided with a rotating handle 160 on their outer sides, which facilitates manual tightening and simplifies the construction process. In addition, a reinforcing nut 150 is provided at the top of the movable rod 120. The upper part of the reinforcing nut 150 protrudes inward along the inner wall to form a ring shape, and its thickness is the same as the wall thickness of the fixed rod 110. After tightening the nut, the protruding ring covers the top of the movable rod 120, which increases the contact area between the top of the movable rod 120 and the support head 3. This serves two purposes: first, it provides a positioning function, making it difficult for the support frame 2 to fall off the screw; second, it reinforces the end of the screw and increases the force-bearing area, making the support head 3 more stable.

[0069] During actual construction, the fixed rod 110 is vertically fixed to the floor. The position of the upper nut 130 is adjusted according to the floor height to basically meet the required height, with the force-bearing end of the upper nut 130 facing downwards. Then, the movable rod 120 is inserted into the fixed rod 110, so that the lower nut 140 is locked at the outer end of the steel pipe. The nut is rotated to adjust the movable rod 120 to the required height. However, the installation of the support frame 2 is not complete until the flat plate 8 is laid. After adjusting the lower nut 140 to make the horizontal height of the floor slab formwork meet the requirements, the upper nut 130 is adjusted so that the force-bearing side of the support frame 2 is in close contact with the lower surface of the support head 3, and the upper surfaces of both ends of the support frame 2 are in close contact with the bottom surface of the keel 4 and are under stress. Only after this is the installation of the support frame 2 completed.

[0070] like Figure 2 and Figure 3As shown, the support head assembly includes a support frame 2 and a support head 3. The support frame 2 is plate-shaped with a through positioning hole 23 in its middle. The support frame 2 is sleeved and connected to the top of the movable rod 120 through the positioning hole 23. Space is left around the support frame 2 to cooperate in supporting the keel 4 and the flat plate 8. Preferably, the support frame 2 includes a support plate 21, flanges 22 protruding on both sides of the support plate 21, a positioning hole 23 located in the center of the support plate 21, and a positioning reinforcement ring 24 corresponding to the positioning hole 23 located at the bottom of the support plate 21. The two ends of the flanges 22 are shorter than the length of the support plate 21 to leave space for supporting the keel 4. The support plate 21 also has protective plates at both ends extending beyond the side edges of the flanges 22. In a further embodiment, the support plate 21 is also provided with reinforcing strips 15 on the bottom surface. The reinforcing strips 15 are arranged around the positioning reinforcement ring 24 and connect the positioning reinforcement ring 24 and the four corners of the bottom surface of the support plate 21 along the diagonal direction, thereby further improving the compressive strength of the support plate 21.

[0071] like Figure 4 As shown, during construction, remove the reinforcing nut 150, allowing the movable rod 120 to pass through the positioning reinforcing ring 24 and positioning hole 23 at the bottom of the support frame 2. Place the positioning reinforcing ring 24 of the support frame 2 on the force-bearing end of the upper nut 130. The top of the upper nut 130 is locked against the outer wall of the positioning ring 31. Then tighten the top reinforcing nut 150 to fix the position of the support frame 2 between the upper nut 130 of the movable rod 120 and the top reinforcing nut 150. At the same time, adjust the upper nut 130 so that the position of the support frame 2 does not affect the installation of the support head 3 and the keel 4.

[0072] Correspondingly, such as Figure 3 As shown, the support head 3 is a square box structure with an open bottom, which is fastened above the support frame 2 without affecting the contact between the support frame 2 and the keel 4 and the plate 8. Two opposite side plates of the support head 3 fit perfectly with the inner side of the flange 22 on the support plate 21, thus securing it in the support plate 21. The other two opposite side plates are the end faces of the support head 3, used to connect with the keel 4. A pad 32 is provided in the middle of the inner side of the top surface of the support head 3. A positioning ring 31 is vertically installed on the pad 32. The inner diameter of the positioning ring 31 matches the diameter of the positioning hole 23. Preferably, reinforcing strips 15 are also provided between the pad 32 and the four corners of the inner side of the top surface of the support head 3, thereby improving the support head 3's resistance to top load and the pressure resistance of the lower movable rod 120.

[0073] like Figure 5As shown, the keel 4 is a hollow, closed structure. Symmetrical and identically shaped side wings 42 project from both sides of the cross-section along its vertical length, giving it a convex cross-section. The dimensions of the keel end face 41 match one side of the support frame 2 and the end face of the support head 3. The height of the portion of the keel 4 excluding the side wings 42 matches the thickness of the plate 8, ensuring a smooth top surface when the plate 8 is placed on the keel 4. Preferably, the height of the portion of the keel 4 excluding the side wings 42 matches the thickness of the plate 8, ensuring a smooth top surface when the plate 8 is placed on the keel 4. The keel end face 41 is provided with irregularly shaped connecting holes 13.

[0074] like Figure 6 As shown, after the support head 3 and keel 4 are installed on the support rod assembly 1 and support frame 2, the positioning ring 31 of the support head 3 is fitted onto the top of the movable rod 120, so that the top of the movable rod 120 is in close contact with the pad 32 of the support head 3. Then, the two ends of the support head 3 are aligned with the end face 41 of the keel, and the irregular connecting hole 13 on the support head 3 is aligned with the irregular connecting hole 13 on the keel 4. The rotating shaft 103 of the right angle buckle 10 is coaxially inserted into the irregular connecting hole 13, passing through the two spliced ​​surfaces, and then rotated 90° so that the front locking position 101 of the right angle buckle 10 locks the end faces of the two spliced ​​components, completing the splicing of one support head 3 and keel 4. The above steps are repeated to complete the installation of the support head 3 and keel 4. The diameter of the rotating shaft 103 of the right angle buckle 10 matches the diameter of the circular through hole in the irregular connecting hole.

[0075] like Figure 7 As shown, the corner connector includes a concave corner 5, a keel corner 6, and a concave corner 7. The concave corner 5 is used to connect mutually perpendicular flat plates 8 at the intersection of walls, columns, or beams. The concave corner 5 includes a bent plate 51, a connecting plate 52, and a concave corner baffle 53. The bent plate 51 includes two mutually perpendicular plates connected on one side, and its structure is the same as the plate surface 81 of the flat plate 8. The connecting plate 52 is respectively vertically arranged on the edges of the bent plate 51 that do not contact the two sides, and its structure is the same as the side rib 83 of the flat plate 8. The concave corner baffle 53 is arranged on the end face of the concave corner 5 and is used to cooperate with the keel corner 6 for lateral connection.

[0076] Furthermore, such as Figure 8 As shown, the keel corner 6 is used to connect the mutually perpendicular flat plate 8 and keel 4 at the intersection of wall column or beam. The keel corner 6 is a polygonal shell structure, including a keel connecting surface 61, a flat plate connecting surface 62, an inside corner connecting surface 63, and a load-bearing surface 64. The load-bearing surface 64 includes two perpendicularly intersecting plate structures. The keel connecting surface 61 and the flat plate connecting surface 62 are respectively perpendicularly arranged at the edges of the two plate structures on the load-bearing surface 64. The inside corner connecting surface 63 is arranged on both sides of the load-bearing surface 64 and is perpendicular to the two plates on the load-bearing surface 64.

[0077] Furthermore, such as Figure 9 As shown, the inside corner bend 7 is used to connect different inside corners 5. The inside corner bend 7 is a square shell structure, in which three mutually perpendicular and intersecting surfaces are load-bearing surfaces 72, and the other three surfaces are mounting surfaces 71, which are used to connect with different inside corners 5.

[0078] like Figure 10 As shown, it should be noted that the plate 8 includes a hollow closed plate surface 81 and a plurality of back ribs 82 disposed on the bottom surface of the plate surface 81. The back ribs 82 are evenly spaced along the long side of the plate surface 81. Side ribs 83 of the same size as the back ribs 82 are disposed on both sides of the plate surface 81. The two ends of the plate surface 81 are also provided with plate baffles 84 that are perpendicular to both the plate surface 81 and the side ribs 83.

[0079] Specifically, such as Figure 11 As shown, the fasteners include U-shaped buckles 9, right-angle buckles 10, and C-shaped buckles 11. The U-shaped buckles 9 are used to fasten between the side ribs 83 of different flat plates 8, between the side ribs 83 of flat plates 8 and the connecting plate 52 of the inside corner 5, between the flat plate baffle 84 and the connecting plate 52 of the inside corner 5, and between the inside corner baffles 53 of different inside corners 5. The U-shaped buckles 9 are used in conjunction with the circular connecting holes 12 on other template components. The U-shaped buckles 9 include a positioning shaft 91, a rotating arm 92, and a retaining ring 93 connected in sequence. The positioning shaft 91 and the rotating arm 92 are straight rods that are perpendicularly connected to each other. The retaining ring 93 is a U-shaped rod. One end of the rotating arm 92 is fixed to one end of the retaining ring 93 perpendicular to the plane where the retaining ring 93 is located, so that the projection of the positioning shaft 91 on the plane where the retaining ring 93 is located points from one end of the retaining ring 93 to the other end.

[0080] Furthermore, such as Figure 12 As shown, the right-angle buckle 10 is used to fasten the support head 3 and the keel 4, the inside corner 5 and the inside corner 7, and the inside corner baffles 53 of different inside corners 5. The right-angle buckle 10 is used in conjunction with the irregular connecting holes 13 set on other template components. The right-angle buckle 10 includes a front locking position 101, a rear locking position 102, a rotating shaft 103 and a handle 104. The front locking position 101 and the rear locking position 102 are respectively set at both ends of the rotating shaft 103. The front locking position 101 is a strip perpendicular to the rotating shaft 103, and the rear locking position 102 is a disc. The handle 104 is L-shaped, and one end of the handle 104 is coaxially set at the end of the rotating shaft 103 near the rear locking position 102.

[0081] Furthermore, such as Figure 13As shown, the C-type clip 11 is used for fastening between the keel 4 and the flat plate 8 erected on the keel 4. The C-type clip 11 includes a fixed clip post 111, a movable clip post 112, a clip guide rail 113, a positioning post 114, a pin groove 115, and a pin piece 116. The fixed clip post 111 is vertically fixed at one end of the clip guide rail 113. The movable clip post 112 is parallel to the fixed clip post 111 and is movably sleeved on the clip guide rail 113. The positioning post 114 is correspondingly arranged on the opposite side of the fixed clip post 111 and the movable clip post 112, thereby achieving clamping and fixing. The pin groove 115 is arranged on the clip guide rail 113 in the range where the movable clip post 112 can move. The pin piece 116 is close to the side of the movable clip post 112 and is inserted into the pin groove 115.

[0082] In a preferred embodiment, the ends of the fixed locking post 111 and the movable locking post 112 on opposite sides are provided with a disc and a cylinder protruding outside the disc, wherein the diameter of the cylinder matches the circular connecting hole 12, and the disc thereafter is larger than the diameter of the circular connecting hole.

[0083] In the corresponding structure, the side ribs 83 and flat plate baffles 84 of the flat plate 8, the internal corner connecting surface 63 of the keel corner 6, the internal corner baffles 53 and connecting plate 52 of the internal corner 5, and the mounting surface 71 of the internal corner 7 are all provided with circular connecting holes 12; the support head 3 is provided with irregular connecting holes 13 on the side of the keel 4, the end face of the keel 4, the keel connecting surface 61 and internal corner connecting surface 63 of the keel corner 6, the internal corner baffles 53 of the internal corner 5, and the mounting surface 71 of the internal corner 7. The irregular connecting holes 13 are strip-shaped holes, and circular through holes are overlapped in the middle of the strip-shaped holes.

[0084] More preferably, each of the component planes where the irregular connecting holes 13 are located is provided with protruding reinforcing ribs 14. The reinforcing ribs 14 are located at the edges or corners of the plane. The reinforcing ribs 14 are continuously provided or discontinuously provided. The irregular connecting holes 13 and circular connecting holes 12 on the same plane are also surrounded by reinforcing ribs 14 of the same thickness. The reinforcing ribs 14 on the contacting component planes correspond in shape and position. The component plane where the circular connecting hole 12 is located has an inwardly recessed area corresponding to the transverse strip area of ​​the circular connecting hole 12.

[0085] In the specific installation process, the wall column (or beam) formwork is assembled before the support rod is installed. The flat connecting surface 62 of the keel corner 6 is structurally identical to the flat baffle 84 of the wall column (or beam) formwork, and the distribution modulus and specifications of the circular connecting holes on it are exactly the same. During installation, first find the position of the circular connecting hole 12 on the flat baffle 84 according to the calculated distance. Align the circular connecting holes 12 on the keel corner 6 connector with each other, so that the rotating arm 92 of the U-shaped buckle 9 is perpendicular to the longitudinal direction of the flat baffle 84. Insert the positioning shaft 91 into the circular connecting hole 12, pass through the two baffles, and then rotate 90° so that the U-shaped buckle locks the baffles of the two components respectively, completing the splicing of the connector with the vertical wall column (or beam) formwork.

[0086] In the preferred embodiment, a cantilever section 65 extends outward from the keel connection surface 61 of the keel corner 6. Its functions are twofold: first, when the upper load of a project with special design exceeds the constraint force of the connector, a support rod can be added at the connection point; second, when the formwork is removed, the cantilever section acts as a lever, making it easy to remove. It is equivalent to the easy-to-remove part of other similar metal products located at the inside corner 5. Once the corner piece is removed, a gap is left between the inside corners 5, and the inside corners 5 can be easily removed.

[0087] like Figure 14 As shown, the keel connecting surface 61 of the keel corner 6 has the same surface structure as the keel 4 baffle. During installation, the reinforcing rib 14 of the keel 4 baffle and the reinforcing rib 14 at the end of the cantilevered connecting surface of the keel corner 6 connector are joined together, and the irregular connecting holes 13 of both are aligned. The rotating shaft 103 of the right angle buckle 10 is coaxially inserted into the irregular connecting hole 13, passes through the two spliced ​​surfaces, and rotates 90° so that the front locking position 101 of the right angle buckle 10 locks the connecting surfaces of the two spliced ​​components, thus completing the connection of the keel 4 and the keel corner 6.

[0088] like Figure 15As shown, the inside corner 7 is used at the intersection of the inside corner 5 of the horizontal and vertical planes. It is a square shell structure. Three mutually perpendicular and intersecting surfaces are load-bearing surfaces 72, and the other three surfaces are mounting surfaces 71. The three mounting surfaces 71 are used to connect with the inside corners 5 of the two horizontal and one vertical directions, respectively. The three load-bearing surfaces 72 are in direct contact with the reinforced concrete. A triangular pyramid is cut off at the common end of the mounting surfaces 71, so that each of the three mounting surfaces 71 is missing a corner, which matches the shape of the inside corner baffle 53. When installing the internal corner bend 7, it is first spliced ​​with the vertical internal corner 5. The reinforcing rib 14, irregular connecting hole 13, and circular connecting hole 12 on the internal corner baffle 53 are aligned with the reinforcing rib 14, irregular hole connector, and circular connecting hole 12 on the mounting surface 71 of the internal corner bend 7. The rotating shaft 103 of the right-angle buckle 10 is coaxially inserted into the irregular connecting hole 13, passing through both spliced ​​surfaces, and then rotated 90° so that the front locking position 101 of the right-angle buckle 10 clamps the two spliced ​​end faces. Then, the positioning shaft 91 of the U-shaped buckle is inserted into the circular connecting hole 12, passing through the two spliced ​​surfaces, and then rotated 90° so that the U-shaped buckle respectively clamps the spliced ​​surfaces of the two components in close contact, completing the splicing of the internal corner bend 7 with the vertical internal corner 5. The same steps are then followed to splice the internal corner 5 in the horizontal direction.

[0089] Furthermore, such as Figure 16 As shown, the installation methods for the corner baffle 53, the corner connecting surface 63 of the keel corner 6, and the mounting surface 71 of the corner 7 are similar. In one installation section, after installing the flat plate 8, support rod, support frame 2, support head 3, keel 4, keel corner 6 connector, and corner 7, the corner 5 can be installed. The corner 5 has four mounting surfaces 71, with the corner baffles 53 at both ends connected to the corner connecting surface 63 of the keel corner 6 and the mounting surface 71 of the corner 7, respectively. The splicing method and steps are the same as those for splicing the corner 7 with the vertical corner 5 described above. The other two sides are mutually perpendicular connecting plates 52. The perpendicular connecting plates 52 are spliced ​​with the side ribs 83 of the flat plate 8. The side ribs 83 of the flat plate 8 have the same cross-sectional dimensions and surface structure as the connecting plates 52. The circular connecting holes 12 on the side ribs 83 and the circular connecting holes 12 on the connecting plates 52 are aligned so that the rotating arm 92 of the U-shaped buckle 9 is perpendicular to the longitudinal direction of the side ribs 83. The positioning shaft 91 is inserted into the connecting hole, passes through the two splicing surfaces, and then rotates 90° to fix the spliced ​​side ribs 83 and connecting plates 52 in the U-shaped buckle. In this way, the connecting parts of the inside corner 5, inside corner 7, and keel corner 6 are integrated around the entire installation area.

[0090] like Figure 17 , 20As shown in Figure 21, when laying the flat plate 8 in the floor slab formwork, the flat plate 8 bears the load in the direction parallel to the back rib 82, and the two ends perpendicular to the back rib 82 are the load-bearing support points. The flat plate 8 is laid vertically along the keel 4. When laying the flat plate 8 between the keels 4, both ends are placed on the side wings 42 of the keel 4, and the plate is laid sequentially without gaps. When laying the flat plate 8 between the keel 4 and the inside corner 5, one end of the flat plate 8 is placed on the side wings 42 of the keel 4, and the other end is connected to the connecting plate 52 of the inside corner 5. The fastener between the keel 4 and the plate 8 is a C-type clip 11. The fixed clip 111 and the movable clip 112 of the C-type clip 11 are placed on both sides of the keel 4. First, the cylinder on the fixed clip 111 is inserted into the circular connecting hole 12 of the side rib 83 of the plate 8, and the disc behind the cylinder is pressed against the plate baffle 84. Then, the movable clip 112 is moved and the cylinder on the movable clip 112 is inserted into the corresponding circular connecting hole 12 of the other plate baffle 84. Then, the pin 116 is inserted into the pin groove 115 and the pin 116 is moved inward to tightly fix the movable clip 112. The plate 8 between the keel 4 and the inside corner 5 is placed on one end of the side wing 42 of the keel 4 and fastened to the plate 8 on one side of the keel 4 with the C-type clip 11. The other side is spliced ​​with the connecting plate 52 of the inside corner 5 and fastened with the C-type clip 11. The operation steps are the same as those for splicing the connecting plate 52 of the inside corner 5 and the side rib 83 of the plate 8.

[0091] It should be noted that, as Figure 18 , 19 As shown, a metal frame liner 16 is provided on the inner side of the keel 4 and the inner side of the back rib 82 in the plate 8. The liner 16 is embedded in the keel 4 and the back rib 82 and is tightly connected to their inner sides. By using a hollow structure and a metal frame liner 16, the weight of each plate is reduced, making installation easier.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A quick-release support system for building formwork, characterized in that, The template includes several template components, including a support rod assembly (1), a support head assembly, a keel (4), a flat plate (8), a corner connector, and fasteners. The bottom of the support rod assembly (1) is fixed to the ground, the support head assembly is adjustablely installed on the top of the support rod assembly (1), the keel (4) is erected between adjacent support head assemblies, and the flat plate (8) is laid tightly between adjacent keels (4). Multiple flat plates (8) are laid to form a closed support plane. The corner connector is set at the intersection of the keel (4) or flat plate (8) with the wall column or beam for transition. The fastener is set at the connection of the components to achieve locking and fixing, thereby forming a complete building template. All template components except the support rod assembly (1) are made of high polymer composite plastic. The support rod assembly (1) includes a hollow fixed rod (110) and a movable rod (120). The support head assembly includes a support frame (2) and a support head (3). The support frame (2) is plate-shaped with a through positioning hole (23) in its middle. The support frame (2) is sleeved and connected to the top of the movable rod (120) through the positioning hole (23). Space is left around the support frame (2) to cooperate with the support keel (4) and the flat plate (8). The support head is a square box structure with an open bottom, including a top plate and four side plates. The support head is fastened above the support frame and does not affect the contact between the support frame and the keel and the flat plate. The corner connector includes a concave corner (5), a keel corner (6), and a concave corner (7). The concave corner (5) is used to connect mutually perpendicular flat plates (8) at the intersection of a wall column or beam. The concave corner (5) includes a bent plate (51), a connecting plate (52), and a concave corner baffle (53). The bent plate (51) includes two mutually perpendicular plates connected on one side. The connecting plate (52) is respectively vertically set on the edges of the bent plate (51) that do not contact the two sides. The concave corner baffle (53) is set on the end face of the concave corner (5) and is used to cooperate with the keel corner (6) for lateral connection. The keel corner (6) is used to connect the mutually perpendicular flat plate (8) and keel (4) at the intersection of wall column or beam. The keel corner (6) is a polygonal shell structure, including keel connecting surface (61), flat plate connecting surface (62), internal corner connecting surface (63) and load-bearing surface (64). The load-bearing surface (64) includes two perpendicularly intersecting plate structures. The keel connecting surface (61) and flat plate connecting surface (62) are respectively perpendicularly set at the edges of the two plate structures on the load-bearing surface (64). The internal corner connecting surface (63) is set on both sides of the load-bearing surface (64) and is perpendicular to the two plates on the load-bearing surface (64). The corner bend (7) is used to connect different corners (5). The corner bend (7) is a square shell structure, in which three mutually perpendicular and intersecting surfaces are load-bearing surfaces (72), and the other three surfaces are mounting surfaces (71), which are used to connect with different corners (5).

2. The quick-release support system for building formwork as described in claim 1, characterized in that: The fixed rod (110) is vertically installed and its bottom end is fixedly installed on the ground. The movable rod (120) is movably coaxially sleeved inside the fixed rod (110), and the movable rod (120) and the fixed rod (110) can switch between a fixed state and a movable state.

3. The quick-release support system for building formwork as described in claim 2, characterized in that: The fixed rod (110) is a hollow rod, and the bottom end of the movable rod (120) is coaxially sleeved inside the fixed rod (110). The upper and lower ends of the movable rod (120) are respectively provided with upper threads and lower threads. The upper threads and lower threads are respectively sleeved with threaded upper nuts (130) and lower nuts (140). The upper nut (130) cooperates with the support head assembly, and the lower nut (140) cooperates with the fixed rod (110), respectively realizing the adjustment function relative to the movable rod (120).

4. The quick-release support system for building formwork as described in claim 3, characterized in that: The upper nut (130) and lower nut (140) are frustum-shaped, including a force-bearing end and a non-force-bearing end. The force-bearing end is located at the end with a larger diameter, and the non-force-bearing end is located at the end with a smaller diameter. The force-bearing end of the lower nut (140) faces downward and cooperates with the outer diameter of the top of the fixed rod (110) to support the movable rod (120). The force-bearing end of the upper nut (130) faces upward and cooperates with the support frame (2) to achieve fixation.

5. The quick-release support system for building formwork as described in claim 2, characterized in that: The support frame (2) includes a support plate (21), flanges (22) protruding from both sides of the support plate (21), a positioning hole (23) located in the center of the support plate (21), and a positioning reinforcement ring (24) with the corresponding positioning hole (23) located at the bottom of the support plate (21). The two ends of the flange (22) are within the length of the support plate (21) so as to leave space for supporting the keel (4). The support plate (21) is also provided with a guard plate at both ends of the side edge that extends beyond the flange (22). The support head (3) is a square box structure with an open bottom and is fastened above the support frame (2) without affecting the contact between the support frame (2) and the keel (4) and the plate (8). Two of the opposite side plates of the support head (3) fit perfectly with the inner side of the flange (22) on the support plate (21) and are thus locked in the support plate (21). The other two opposite side plates are the end faces of the support head (3) and are used to connect with the keel (4).

6. The quick-release support system for building formwork as described in claim 2, characterized in that: A pad (32) is provided on the inner center of the top surface of the support head (3), and a positioning ring (31) is vertically installed on the pad (32). The inner diameter of the positioning ring (31) matches the diameter of the positioning hole (23).

7. The quick-release support system for building formwork as described in claim 2, characterized in that: The keel (4) is a hollow closed structure. The keel (4) has symmetrical and identical side wings (42) protruding from both sides of its cross section along the vertical length direction, making its cross section shape "convex". The dimensions of the keel end face (41) match one side of the support frame (2) and the end face of the support head (3). The height of the part of the keel (4) other than the side wings (42) matches the thickness of the plate (8), so that the top of the plate (8) forms a smooth plane when it is placed on the keel (4). The keel end face (41) is provided with irregular connecting holes (13).

8. The quick-release support system for building formwork as described in claim 7, characterized in that: The flat plate (8) includes a hollow closed plate surface (81) and a plurality of back ribs (82) set on the bottom surface of the plate surface (81). The back ribs (82) are evenly spaced along the long side of the plate surface (81). Side ribs (83) with the same size as the back ribs (82) are provided on both sides of the plate surface (81). Flat plate baffles (84) that are perpendicular to both the plate surface (81) and the side ribs (83) are also provided at both ends of the plate surface (81).

9. A quick-release support system for building formwork as described in claim 8, characterized in that: The fasteners include U-shaped clips (9), right-angle clips (10), and C-shaped clips (11). The U-shaped clips (9) are used to fasten the side ribs (83) of different flat plates (8) to each other, the side ribs (83) of the flat plates to each other and the connecting plates (52) of the inside corners (5), the flat plate baffles (84) to each other and the connecting plates (52) of the inside corners (5), and the inside corner baffles (53) of different inside corners (5). The U-shaped clips (9) cooperate with the circular connecting holes (12) on the template components. In use, the U-shaped buckle (9) includes a positioning shaft (91), a rotating arm (92), and a retaining ring (93) connected in sequence. The positioning shaft (91) and the rotating arm (92) are straight rods connected perpendicularly to each other. The retaining ring (93) is a U-shaped rod. One end of the rotating arm (92) is fixed to one end of the retaining ring (93) perpendicular to the plane where the retaining ring (93) is located, so that the projection of the positioning shaft (91) on the plane where the retaining ring (93) is located points from one end of the retaining ring (93) to the other end.

10. A quick-release support system for building formwork as described in claim 9, characterized in that: The right-angle buckle (10) is used to fasten the support head (3) and the keel (4), the inside corner (5) and the inside corner corner (7), and the inside corner baffle (53) of different inside corners (5). The right-angle buckle (10) is used in conjunction with the irregular connecting hole (13) set on the template component. The right-angle buckle (10) includes a front locking position (101), a rear locking position (102), a rotating shaft (103), and a handle (104). The front locking position (101) and the rear locking position (102) are respectively set at both ends of the rotating shaft (103). The front locking position (101) is a strip perpendicular to the rotating shaft (103), and the rear locking position (102) is a disc. The handle (104) is L-shaped, and one end of the handle (104) is coaxially set at the end of the rotating shaft (103) near the rear locking position (102).

11. The quick-release support system for building formwork as described in claim 9, characterized in that: The C-type clip (11) is used for fastening between the keel (4) and the flat plate (8) erected on the keel (4). The C-type clip (11) includes a fixed clip post (111), a movable clip post (112), a clip guide rail (113), a positioning post (114), a pin groove (115), and a pin piece (116). The fixed clip post (111) is vertically fixed at one end of the clip guide rail (113), and the movable clip post (112) is parallel to the fixed clip post (113). The locking pin (111) is movably sleeved on the snap-on guide rail (113). The positioning pin (114) is correspondingly arranged on the opposite side of the fixed locking pin (111) and the movable locking pin (112) to achieve clamping and fixing. The pin groove (115) is arranged on the snap-on guide rail (113) in the range where the movable locking pin (112) can move. The pin piece (116) is close to the side of the movable locking pin (112) and is inserted into the pin groove (115).

12. The quick-release support system for building formwork as described in claim 11, characterized in that: The fixed locking post (111) and the movable locking post (112) are provided with a disc and a cylinder protruding outside the disc at their opposite ends, wherein the diameter of the cylinder matches the circular connecting hole (12), and the disc behind it is larger than the diameter of the circular connecting hole.

13. A quick-release support system for building formwork as described in any one of claims 9 to 12, characterized in that: The side ribs (83) and flat plate baffles (84) of the flat plate (8), the inside corner connecting surface (63) of the keel corner (6), the inside corner baffles (53) and connecting plate (52) of the inside corner (5), and the mounting surface (71) of the inside corner (7) are all provided with circular connecting holes (12); the support head (3) is provided with irregular connecting holes (13) on the side of the keel (4), the end face of the keel (4), the keel connecting surface (61) and inside corner connecting surface (63) of the keel corner (6), the inside corner baffles (53) of the inside corner (5), and the mounting surface (71) of the inside corner (7). The irregular connecting holes (13) are strip holes, and circular through holes are overlapped in the middle of the strip holes.

14. The quick-release support system for building formwork as described in claim 13, characterized in that: The irregular connecting hole (13) is provided with a protruding reinforcing rib (14) on the component plane. The reinforcing rib (14) is provided at the edge or corner of the plane. The reinforcing rib (14) is provided continuously or intermittently. The irregular connecting hole (13) and the circular connecting hole (12) on the same plane are also surrounded by reinforcing ribs (14) of the same thickness. The reinforcing ribs (14) on the contacting component planes are corresponding in shape and position. The horizontal strip area corresponding to the circular connecting hole (12) on the component plane is provided with an inward recess.

15. A quick-release support system for building formwork as described in any one of claims 8 to 12, characterized in that: The inner side of the keel (4) and the inner side of the back rib (82) in the plate (8) are provided with a metal frame liner (16), which is embedded in the keel (4) and the back rib (82) and tightly connected to their inner sides.

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