A semi-assembled safety early-release building formwork structure

Abstract

The application provides a semi-assembled safety early-release building formwork structure, which comprises a plurality of early-release floor formworks sequentially spliced together through early-release strip-shaped support plates, a plate rail assembly supported below the early-release floor formworks and the early-release strip-shaped support plates, a jacking support device supported below the plate rail assembly, and a wall formwork assembly connected with the outermost early-release floor formwork through a internal corner C groove. The spliced floor formworks and early-release strip-shaped support plates are clamped and supported by the clamp and the joint square tube assembly, so that the floor formworks and the early-release strip-shaped support plates can be more closely spliced together, and the risk of slurry leakage is reduced. The clamp tightly jacks up the joint square tube assembly at the splicing gap between the floor formwork and the early-release strip-shaped support plate, prevents the early-release floor formwork and the early-release strip-shaped support plate from deforming and affecting the flatness after the floor concrete pouring is completed, and avoids problems such as joint misalignment.

Description

Technical Field

[0001] This invention relates to the field of building formwork technology, specifically to a semi-prefabricated, safe, early-stripping building formwork structure. Background Technology

[0002] Currently, in construction formwork, modular floor formwork accounts for more than 90%. In modular floor formwork, the joints between two adjacent floor formwork pieces are usually made of 50*10*2000 / 3000 / 4000 timber or 50*50 steel-clad timber as secondary joists. Then, iron nails are used to nail the two floor formwork pieces to the secondary joists to form an integral floor formwork structure. The floor formwork structure is then connected to the wall formwork or beam side formwork structure by iron nails, and is supported by support poles and main joists.

[0003] However, using nails for fixing makes it difficult to ensure a tight connection, easily leading to grout leakage. Furthermore, deformation of the floor formwork can severely weaken the holding power between the nails and the timber / steel-clad timber / formwork, causing the nails to protrude upwards. If the nailing is not thoroughly checked before pouring the beam and slab concrete, misalignment of the concrete joints can occur, and the nail heads may become embedded in the concrete, requiring treatment after demolding. Additionally, the nails on the floor formwork can easily injure workers during dismantling, cleaning, and transporting, posing a significant safety hazard and severely slowing down material handling and transport. Each time materials are reused, the old nails on the floor formwork must be removed before using new nails, increasing both labor and material costs.

[0004] Meanwhile, when dismantling building formwork, it is extremely difficult to remove the main and secondary keel floor formwork in a timely manner. Usually, the main keel tray is lowered by more than 100mm, the main keel is removed, or all the supporting uprights are knocked down to make the main keel fall down so that the secondary keel and floor formwork can be removed. However, in this process, the main and secondary keels are seriously uncontrollable and there are serious safety hazards. Summary of the Invention

[0005] To address the existing problems, this invention provides a semi-prefabricated, safe, early-stripping building formwork structure that can avoid grout leakage, reduce construction costs, and facilitate installation and disassembly.

[0006] The present invention is achieved through the following technical solution: a semi-prefabricated safe early-stripping building formwork structure, comprising a number of early-stripping floor formwork panels that are sequentially spliced ​​together by early-stripping strip support plates, a slab keel assembly supported below the early-stripping floor formwork panels and the early-stripping strip support plates, a top support device supported below the slab keel assembly, and a wall formwork assembly connected to the outermost early-stripping floor formwork panel through an internal corner C-groove.

[0007] In addition, the joints of two adjacent early-stripping floor templates and early-stripping strip support plates are supported by joint square tube assemblies; and the two adjacent early-stripping floor templates and early-stripping strip support plates, as well as the early-stripping floor templates and the C-groove at the inside corner, are clamped together by clamps; the clamps can also press the joint square tube assembly against the two adjacent early-stripping floor templates and early-stripping strip support plates.

[0008] The joint square tube assembly includes a square tube body and several L-shaped profile assemblies distributed along the splicing gap between two adjacent early-stripping floor templates and early-stripping strip support plates.

[0009] The L-shaped profile assembly includes two L-shaped profiles respectively disposed on the lower surface of the splicing ends of two adjacent early-stripping floor templates and early-stripping strip support plates. The panel of the square tube body is at least partially recessed inward to form a square tube U-shaped groove extending along its axial direction. Both L-shaped profiles are inserted into the square tube U-shaped groove. The clamp presses the square tube body upward.

[0010] The clamp includes a clamping structure and a tightening structure connected to the clamping structure; the clamping structure has an adjustable clamping cavity, and the tightening end of the tightening structure extends into the clamping cavity and tightens against the square tube body.

[0011] The lower surface of the splicing end of the early-stripping floor template and the early-stripping strip support plate is provided with a clamping profile. The clamping cavity clamps the clamping profiles on two adjacent early-stripping floor templates and early-stripping strip support plates so that the two adjacent early-stripping floor templates and early-stripping strip support plates are spliced ​​together.

[0012] The clamping structure includes a clamping base plate, a fixed clamping plate disposed at one end of the clamping base plate, an adjusting component disposed at the other end of the clamping base plate, and a movable clamping plate disposed on the adjusting component; the clamping cavity is formed between the fixed clamping plate and the movable clamping plate, and the adjusting component can drive the movable clamping plate to move to adjust the size of the clamping cavity.

[0013] The clamping structure includes a stud that can move up and down on the base plate of the clamp, the top end of the stud extending into the clamping cavity, and a clamping top plate is installed on the top end of the stud; the clamping top plate clamps the square tube body.

[0014] The top support device includes a telescopic support rod assembly, a top plate assembly detachably mounted on top of the support rod assembly, a tray assembly disposed on the support rod assembly and located below the top plate assembly, and a first tray adjustment ring sleeved on the support rod assembly for adjusting the height of the tray assembly.

[0015] The slab keel assembly includes a secondary slab keel supported below the early-stripping floor formwork, an early-stripping strip support slab secondary keel supported below the early-stripping strip support slab, and a main slab keel supported below the secondary slab keel and the early-stripping strip support slab secondary keel; the top slab assembly supports the early-stripping strip support slab secondary keel, and the pallet assembly supports the main slab keel.

[0016] The pallet assembly includes two pallet clamps respectively clamped on both sides of the support rod assembly, locking components for locking the two pallet clamps, and connecting screw posts and fixing nuts for fixing the main keel of the plate; each end of the pallet clamp is provided with a main keel limiting groove, and a clamping plate hole is provided in the main keel limiting groove; the main keel of the plate is inserted into the main keel limiting groove, and the connecting screw post passes through the main keel of the plate and the clamping plate hole in sequence and is locked by the fixing nut.

[0017] The top plate assembly includes an early-release strip support plate secondary keel top plate threadedly connected to the top of the support rod assembly; the upper surface of the early-release strip support plate secondary keel top plate is provided with an early-release strip support plate secondary keel limiting groove, and an early-release strip support plate secondary keel fixing post is provided in the early-release strip support plate secondary keel limiting groove; the early-release strip support plate secondary keel is provided with a fixing post insertion hole, the early-release strip support plate secondary keel is inserted into the early-release strip support plate secondary keel limiting groove, and the early-release strip support plate secondary keel fixing post is inserted into the fixing post insertion hole.

[0018] The upper surface edge of the C-groove near the early-stripping floor template is provided with an L-shaped groove extending along its length, and the end of the early-stripping floor template overlaps in the L-shaped groove; a clamping strip is provided in the C-groove, and the clamp clamps the clamping strip and the clamping profile on the early-stripping floor template so that the early-stripping floor template is spliced ​​together with the C-groove.

[0019] The C-groove at the inside corner is connected to the wall template assembly via a connecting component; the connecting component includes a connecting pin and a fixing pin; the top of the connecting pin is provided with a wide head, and its lower end has an opening extending in its axial direction; the connecting pin passes through the bottom plate of the C-groove at the inside corner and the top plate of the wall template assembly from top to bottom; the width of the fixing pin gradually decreases from one end to the other, and the fixing pin passes through the opening and presses upward against the top plate of the wall template assembly.

[0020] Compared with the prior art, the embodiments of this application have the following beneficial effects:

[0021] (1) This invention uses clamps and joint square tube assemblies to clamp and support the two early-stripping floor formwork and early-stripping strip support plates, enabling them to be spliced ​​more tightly together and reducing the risk of grout leakage. The clamps press the joint square tube assembly against the splicing gap between the early-stripping floor formwork and the early-stripping strip support plate, which can prevent the early-stripping floor formwork and the early-stripping strip support plate from deforming and affecting the flatness of the floor concrete after pouring, thus avoiding problems such as misalignment of the joints. In addition, the joint square tube assembly pressing against the splicing gap between the early-stripping floor formwork and the early-stripping strip support plate can also seal the splicing gap between the early-stripping floor formwork and the early-stripping strip support plate, further preventing grout leakage.

[0022] (2) This invention does not require the use of a large number of nails as in traditional technology, thus reducing the labor and material costs of construction; at the same time, it avoids the risk of workers being injured by nails and greatly improves the speed of material cleaning and transportation.

[0023] (3) The present invention provides a fan-shaped plate on the L-shaped profile that matches the arc-shaped part of the U-shaped groove of the square tube, so as to minimize the resistance to the installation and removal of the floor formwork and facilitate construction.

[0024] (4) The top plate assembly of the present invention can limit and fix the secondary keel of the early-release strip support plate, so that the secondary keel of the early-release strip support plate acts as a horizontal tie rod between the top plate assemblies of two adjacent top support devices. In addition, the pallet assembly can also fix the main keel of the plate, so that the main keel of the plate also acts as a horizontal tie rod between the pallet assemblies of two adjacent top support devices. Therefore, the top of the top support device can be pulled together from the direction perpendicular to the strip support belt, so that the top of the top support device forms a horizontal and vertical connection state, thus without a free end. Therefore, the vertical distance between the top of the top support device and the uppermost horizontal tie rod can reach a maximum of 1500mm, which can reduce the number of horizontal tie rods and reduce costs. At the same time, since the main keel of the plate is limited and fixed, when the pallet assembly is lowered by more than 100mm to remove the secondary keel of the plate, the main and secondary keels of the plate can be better controlled to avoid falling off in a messy manner, which would cause safety hazards and damage to the main keel of the plate.

[0025] (5) The present invention provides an L-shaped groove on the upper surface of the C-groove of the inner corner. The end of the early-stripping floor formwork overlaps in the L-shaped groove. The bottom support surface of the L-shaped groove can support the end of the early-stripping floor formwork. Compared with the traditional installation method, its support effect is better. At the same time, due to the blocking effect of the bottom support surface of the L-shaped groove, the grout will not leak from the side wall of the L-shaped groove and the end face of the early-stripping floor formwork, thus solving the problem of grout leakage between the early-stripping floor formwork and the C-groove of the inner corner.

[0026] (6) The inside corner C groove and the wall template assembly of the present invention are connected by connecting pins and then fixed by fixing pins. Compared with the traditional connection method using iron nails, it is easier to install and disassemble, and the finished floor inside corner is flat and straight, thus achieving the quality of no plastering. Attached Figure Description

[0027] The accompanying drawings, provided to further illustrate this application and forming part of this application, illustrate exemplary embodiments and their descriptions, serving to explain this application but not constituting a limitation thereof. In the drawings, the same reference numerals denote the same components.

[0028] Figure 1 This is a structural diagram of the present invention.

[0029] Figure 2 This is a structural diagram of the floor template of the present invention.

[0030] Figure 3 for Figure 2 Enlarged diagram of point A in the middle.

[0031] Figure 4 This is a structural diagram of the joint square tube assembly of the present invention.

[0032] Figure 5 This is a structural diagram of the L-shaped profile of the present invention.

[0033] Figure 6 This is a structural diagram of the square tube body of the present invention.

[0034] Figure 7 This is a side view of the square tube body of the present invention.

[0035] Figure 8 This is a structural diagram of the clamp and clamping profile in Embodiment 1 of the present invention.

[0036] Figure 9 This is a structural diagram of the clamping profile of the present invention.

[0037] Figure 10 This is a structural diagram of the fixture in Embodiment 1 of the present invention.

[0038] Figure 11 This is a structural diagram of the fixture in Embodiment 2 of the present invention.

[0039] Figure 12 This is a structural diagram of the top support device of the present invention.

[0040] Figure 13 for Figure 12 Enlarged diagram of point C in the middle.

[0041] Figure 14 This is a structural diagram of the tray assembly of the present invention.

[0042] Figure 15 This is a schematic diagram of the two pallet clamps of the present invention being disassembled.

[0043] Figure 16 This is a structural diagram of the top plate assembly of the present invention mounted on the support rod assembly.

[0044] Figure 17 for Figure 16 Enlarged view of point D in the middle.

[0045] Figure 18 This is a structural diagram of the top plate assembly in this invention.

[0046] Figure 19 This is a structural diagram of the support rod assembly of the present invention.

[0047] Figure 20 This is a structural diagram of the tray adjusting nut of the present invention.

[0048] Figure 21 This is a structural diagram of the main beam keel tray of the present invention.

[0049] Figure 22 for Figure 12 Enlarged view of point B in the middle.

[0050] Figure 23 This is a structural diagram showing the connection between the internal corner C-groove and the wall template assembly of the present invention.

[0051] Figure 24 This is a cross-sectional view of the C-groove at the inside corner of the present invention.

[0052] Figure 25 This is a structural diagram of the connection component of the present invention.

[0053] The reference numerals in the above figures are as follows: 100—early strip floor formwork; 101—early strip support plate; 200—joint square tube assembly; 210—square tube body; 211—square tube U-groove; 212—horizontal section; 213—arc section; 220—L-profile assembly; 221—L-profile; 222—L-shaped plate; 223—fan-shaped plate; 300—clamping and tightening device; 310—clamping profile; 311—profile panel; 312—profile back plate; 313—profile buckle plate; 314—diagonal brace plate; 315—buckle groove; 320—clamp; 321—clamp base plate; 322—fixing clamp plate. 323—Snap-on part, 324—Modible clamping plate, 325—Clamping top plate, 326—Clamping insert plate, 327—Clamping mounting plate, 328—Slot, 329—Sleeve, 330—Fixing nut, 331—Stud, 332—Handle, 333—Adjusting plate, 334—Clamping screw, 335—Locking nut, 336—Connecting plate, 337—Clamping cavity, 400—Top support device, 410—Top plate assembly, 411—Early-release strip support plate, secondary keel top plate, 412—Support plate, 413—Connecting rib, 414—Top plate limiting plate, 415—Insertion port, 416—Early-release strip 417—Secondary keel fixing column of the support plate; 420—Pallet assembly; 421—Pallet clamp; 422—Locking bolt; 423—Locking nut; 424—Main keel limiting groove; 425—Clamping hole; 426—Arc-shaped clamp; 427—Pallet limiting plate; 430—Support rod assembly; 431—Support steel pipe; 432—External threaded rod; 433—Internal threaded rod; 440—Beam main keel pallet; 441—Cylinder; 442—Pallet; 443—Pallet limiting plate; 444—Bracket reinforcing plate; 450—Pallet adjusting nut; 451—Ring body. 452—Handle, 453—Recessed platform, 460—Snap plate, 470—First tray adjusting ring, 480—Second tray adjusting ring, 500—Internal corner C-groove, 510—L-shaped groove, 520—Internal corner C-groove reinforcing plate, 530—Connecting component, 531—Connecting pin, 532—Fixing pin, 533—Wide head, 540—Clamping strip, 550—Clamping opening, 600—Wall formwork support frame, 610—Support beam, 620—Support column, 630—Horizontal beam, 700—Main keel of the board, 800—Secondary keel of the early-strip support board, 801—Secondary keel of the board, 900—Wall formwork. Detailed Implementation

[0054] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0055] It should be noted that if the terms "first," "second," etc., are used in the specification, claims, and accompanying drawings of this application, they are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0056] In this application, when terms such as "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" are used, they indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0057] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0058] Furthermore, in this application, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0059] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0060] Example 1

[0061] like Figure 1 As shown, this embodiment discloses a semi-prefabricated, safe, early-stripping building formwork structure, which includes an early-stripping floor formwork 100, early-stripping strip support plates 101, wall formwork components, slab keel components, and a top support device 400. The number of early-stripping floor formwork 100 and early-stripping strip support plates 101 is several pieces, and the early-stripping floor formwork 100s are sequentially spliced ​​together by the early-stripping strip support plates 101 to form an integral floor formwork structure. The floor formwork structure is used to support the poured building floor. The slab keel components are supported below the early-stripping floor formwork 100 and early-stripping strip support plates 101, while the top support device 400 is supported below the slab keel components. The top support device 400 and the slab keel components together support the early-stripping floor formwork 100 and early-stripping strip support plates 101.

[0062] In practical implementation, the number of top support devices 400 can be set to multiple according to the size of the floor formwork structure. All top support devices 400 together form a support system to support the early-stripping floor formwork 100 and the early-stripping strip support plate 101. The wall formwork assembly is used to support the cast-in-place building wall. It is connected to the end of the outermost early-stripping floor formwork 100 through the inside corner C-groove 500. In specific settings, multiple wall formwork assemblies can be set, which can surround the floor formwork structure. Of course, the number of wall formwork assemblies can be determined according to the design structure of the building. It can be set to one, two, three or more.

[0063] like Figure 2 , 3 As shown, during splicing, the joints of the early-stripping floor formwork 100 and the early-stripping strip support plate 101 are supported by the joint square tube assembly 200. Simultaneously, the early-stripping floor formwork 100 and the early-stripping strip support plate 101 are clamped together by multiple clamps 320, resulting in a tighter fit and reduced gaps between them. Furthermore, the clamps 320 also press the joint square tube assembly 200 firmly against the early-stripping floor formwork 100 and the early-stripping strip support plate 101, providing better support for them and preventing deformation that could affect the flatness of the poured concrete floor, thus avoiding problems such as misaligned joints.

[0064] like Figure 4As shown, the joint square tube assembly 200 includes a square tube body 210 and several L-shaped profile assemblies 220. Specifically, the square tube body 210 has a hollow structure and is made of high-strength steel, such as alloy steel with a yield strength of 1370 MPa (140 kgf / mm2) or higher and a tensile strength of 1620 MPa (165 kgf / mm2) or higher.

[0065] like Figure 6 , 7 As shown, at least a portion of the panel of the square tube body 210 is recessed inward to form a square tube U-shaped groove 211; that is, the panel of the square tube body 210 is provided with a square tube U-shaped groove 211 recessed toward the central axis of the square tube body 210. The square tube U-shaped groove 211 extends along the axial direction of the square tube body 210.

[0066] Correspondingly, all L-shaped profile components 220 are distributed along the splicing gaps between the interlocking early-stripping floor formwork 100 and early-stripping strip support plate 101.

[0067] Specifically, each L-shaped component 220 includes two L-shaped profiles 221. During installation, the two L-shaped profiles 221 are respectively installed with screws onto the lower edge of the splicing end of the early-stripping floor template 100 and the early-stripping strip support plate 101. Both L-shaped profiles 221 are inserted into the U-shaped groove 211 of the square tube, while the clamp 320 pushes the square tube body 210 upwards. Figure 3 As shown.

[0068] like Figure 5 As shown, the L-shaped profile 221 includes an L-shaped plate 222 and two fan-shaped plates 223 respectively connected to both ends of the L-shaped plate 222. Specifically, the L-shaped plate 222 is formed by connecting a vertical plate and a horizontal plate, and the fan-shaped plates 223 are respectively connected to the vertical plate and the horizontal plate. The horizontal plate is provided with screw holes. During installation, screws are passed through the bottom of the horizontal plate and screwed into the lower surface of the early-stripping floor template 100 and the early-stripping strip support plate 101, so that the L-shaped material 221 is fixed below the edge of the splicing end of the early-stripping floor template 100 and the early-stripping strip support plate 101. Then, the square tube body 210 is used to clamp the L-shaped material 221 on the two adjacent early-stripping floor templates 100 and the early-stripping strip support plate 101, so that the two L-shaped materials 221 are clamped into the square tube U-shaped groove 211 on the square tube body 210. At this time, the square tube body 210 is located below the splicing gap of the spliced ​​early-stripping floor template 100 and the early-stripping strip support plate 101, which can seal the splicing gap and prevent grout leakage.

[0069] Correspondingly, the square tube U-shaped groove 211 includes a horizontal portion 212 and arc-shaped portions 213 respectively connected to both sides of the horizontal portion 212. The horizontal portion 212 forms the bottom of the square tube U-shaped groove 211, and the two arc-shaped portions 213 form the groove walls of the square tube U-shaped groove 211. When the L-shaped profile 221 is inserted into the square tube U-shaped groove 211, the arc-shaped surface of the fan-shaped plate 223 is in close contact with the arc-shaped portion 213 of the square tube U-shaped groove 211, such as... Figure 4 As shown, the cooperation between the arc-shaped surface and the arc-shaped part 213 minimizes the resistance to the installation and removal of the floor formwork, making construction easier.

[0070] Meanwhile, the square tube U-shaped groove 211 can clamp the two L-shaped profiles 221 fixed on the spliced ​​early-stripping floor formwork 100 and early-stripping strip support plate 101, thereby limiting and fixing the early-stripping floor formwork 100 and early-stripping strip support plate 101, so that the early-stripping floor formwork 100 and early-stripping strip support plate 101 abut against each other, reducing the joint between the two and preventing grout leakage.

[0071] The clamp 320 serves to clamp the adjacent early-stripping floor formwork 100 and early-stripping strip support plate 101, and to push the square tube body 210 upward. During installation, multiple clamps 320 can be distributed along the splicing gap between the early-stripping floor formwork 100 and the early-stripping strip support plate 101.

[0072] like Figure 10 As shown, the clamp 320 includes a clamping structure and a tightening structure connected to the clamping structure. The clamping structure has a clamping cavity 337, the size of which is adjustable. The tightening end of the tightening structure extends into the clamping cavity 337 and tightens the square tube body 210 against the early-stripping floor formwork 100 and the early-stripping strip support plate 101, preventing the early-stripping floor formwork 100 or the early-stripping strip support plate 101 from deforming, warping, or causing misalignment and unevenness at the joints.

[0073] Specifically, the clamping structure includes a clamping base plate 321, a fixed clamping plate 322 disposed at one end of the clamping base plate 321, an adjusting assembly disposed at the other end of the clamping base plate 321, and a movable clamping plate 324 disposed on the adjusting assembly. The fixed clamping plate 322 and the movable clamping plate 324 form the aforementioned clamping cavity 337. The adjusting assembly can drive the movable clamping plate 324 to move, thereby adjusting the size of the clamping cavity 337.

[0074] In addition, clamping profiles 310 are provided on the lower surfaces of the splicing ends of the early-demolition floor formwork 100 and the early-demolition strip support formwork 101. During installation, the fixed clamping plate 322 and the movable clamping plate 324 respectively clamp the clamping profiles 310 on the adjacent early-demolition floor formwork 100 and the early-demolition strip support formwork 101, so that the adjacent early-demolition floor formwork 100 and the early-demolition strip support formwork 101 are spliced together, which can also play a role in reducing the splicing gap between the early-demolition floor formwork 100 and the early-demolition strip support formwork 101 and reducing the risk of slurry leakage. Through the above structure, the clamp 320 and the two clamping profiles 310 cooperating with it together form a clamping and tightening device 300, as Figure 8 shown.

[0075] Specifically, the adjustment component of this embodiment includes a sleeve 329, a clamp mounting plate 327, and a clamp insertion plate 326. During installation, the clamp mounting plate 327 is welded to the clamp bottom plate 321. The shape of the clamp mounting plate 327 is in the shape of a "U", so a slot 328 is formed between the clamp mounting plate 327 and the clamp bottom plate 321.

[0076] The sleeve 329 is a hollow square sleeve, and the movable clamping plate 324 is arranged on the surface of the sleeve 329. During installation, both the clamp mounting plate 327 and the clamp bottom plate 321 pass through the inner hole of the sleeve 329, so that the sleeve 329 can move along the clamp bottom plate 321.

[0077] The clamp insertion plate 326 can be inserted into the slot 328, and the width of the clamp insertion plate 326 gradually increases from one end to the other end, so that the clamp insertion plate 326 has a wide end and a narrow end. When in use, the narrow end of the clamp insertion plate 326 is inserted into the slot 328. As the clamp insertion plate 326 is continuously inserted, the clamp insertion plate 326 can push the sleeve 329 forward, making the movable clamping plate 324 approach the fixed clamping plate 322, thereby adjusting the size of the clamping cavity 337.

[0078] In order to fix the clamp insertion plate 326 after the clamping structure clamps the clamping profiles 310 of the early-demolition floor formwork 100 and the early-demolition strip support formwork 101, a row of jacks can be arranged along the length direction of the clamp insertion plate 326, and a jack is also arranged on the clamp mounting plate 327. When the clamp insertion plate 326 is inserted in place, a pin is inserted into the jack on the clamp mounting plate 327 and the corresponding jack on the clamp insertion plate 326, so that the clamp insertion plate 326 can be fixed.

[0079] In addition, a reinforcing plate is connected between the movable clamping plate 324 and the sleeve 329 to improve the clamping strength of the movable clamping plate 324.

[0080] As Figure 10As shown, both the fixed clamping plate 322 and the movable clamping plate 324 are provided with a latching part 323 facing the clamping cavity 337. Correspondingly, as Figure 9 As shown, the clamping profile 310 includes a profile panel 311, a profile back plate 312, a profile buckle plate 313, and a diagonal brace plate 314. The profile panel 311 and the profile buckle plate 313 are horizontally arranged at the upper and lower ends of the profile back plate 312, respectively, and a buckle groove 315 is formed between the profile panel 311, the profile back plate 312, and the profile buckle plate 313, into which the buckle part 323 can be snapped. The diagonal brace plate 314 connects the profile panel 311, the profile back plate 312, and the profile buckle plate 313, respectively. The diagonal brace plate 314 can enhance the overall strength of the clamping profile 310 and make it easier to grasp during handling; multiple diagonal braces plate 314 can be provided.

[0081] Meanwhile, the profile panel 311 is provided with screw holes, which can be used to install the clamping profile 310 on the lower surface of the early-stripping floor template 100 and the early-stripping strip support plate 101. After the early-stripping floor template 100 and the early-stripping strip support plate 101 are spliced ​​together, the buckle part 323 on the fixing clamp 322 is first fastened to the clamping profile 310 on the early-stripping floor template 100. Then, the clamping insert plate 326 is inserted into the slot 328 to adjust the position of the movable clamp 324, so that the buckle part 323 on the movable clamp 324 fastens the clamping profile 310 on the early-stripping strip support plate 101. Through the clamping action of the clamping structure, the early-stripping floor template 100 and the early-stripping strip support plate 101 can be further tightened.

[0082] like Figure 10 As shown, the clamping structure includes a fixing nut 330 welded to the fixture base plate 321, a stud 331 whose upper end passes through the fixing nut 330 and the fixture base plate 321 and extends into the clamping cavity 337, and a fixture top plate 325 installed on the top of the stud 331. The stud 331 and the fixing nut 330 are threaded together, so the stud 331 can be moved up and down when it is turned.

[0083] For easier operation, a handle 332 is provided at the lower end of the stud 331.

[0084] Of course, in another embodiment, the fixing nut 330 may not be provided, in which case the stud 331 can be directly threaded to the fixture base plate 321.

[0085] After the clamping structure clamps the early-stripping floor formwork 100 and the early-stripping strip support plate 101, the stud 331 is turned upwards, causing the top plate 325 of the clamp to press upwards against the square tube body 210, thus completing the splicing of the early-stripping floor formwork 100 and the early-stripping strip support plate 101. Figure 3As shown, the early-stripping formwork unit 100 and the early-stripping strip support plate 101 are clamped and fixed by clamps and joint square tube assembly 200, so that the early-stripping floor formwork 100 and the early-stripping strip support plate 101 can be spliced ​​together more tightly, reducing the risk of grout leakage. At the same time, it does not require the extensive use of iron nails as in traditional techniques, reducing labor and material costs; it also avoids the risk of workers being injured by iron nails, greatly improves the speed of material cleaning and transportation, and facilitates installation and disassembly, solving the problems of rough disassembly.

[0086] Specifically, such as Figure 1 As shown, the slab keel assembly includes a secondary slab keel 801 supported below the early-stripping floor formwork 100, an early-stripping strip support secondary slab keel 800 supported below the early-stripping strip support plate 101, and a main slab keel 700 supported below the secondary slab keel 801 and the early-stripping strip support secondary slab keel 800.

[0087] The early-stripping strip support plate secondary keel 800 and plate secondary keel 801 can be parallel to the square tube body 210, while the plate main keel 700 is perpendicular to the early-stripping strip support plate secondary keel 800 and plate secondary keel 801. The number of early-stripping strip support plate secondary keels 800, plate secondary keels 801, and plate main keels 700 can be set according to the size of the floor formwork structure. For example, one or more plate secondary keels 801 can be supported under each early-stripping floor formwork 100, and one early-stripping strip support plate secondary keel 800 can be supported under each early-stripping strip support plate 101.

[0088] like Figure 12 , 13 As shown, the top support device 400 includes a telescopic support rod assembly 430, a top plate assembly 410 detachably mounted on top of the support rod assembly 430, a tray assembly 420 disposed on the support rod assembly 430 and located below the top plate assembly 410, and a first tray adjusting ring 470 sleeved on the support rod assembly 430 for adjusting the height of the tray assembly 420. The top plate assembly 410 supports the secondary keel 800 of the early-release strip support plate, while the tray assembly 420 supports the main keel 700. In a specific configuration, a second tray adjusting ring 480 may also be installed on the support rod assembly 430, supported below the first tray adjusting ring 470, and invertably mounted on the support rod assembly 430.

[0089] like Figure 19As shown, the support rod assembly 430 includes an inner screw rod 433, an outer screw rod 432, and a support steel pipe 431 arranged sequentially from the inside to the outside. The inner screw rod 433 is a lead screw with a diameter of 38mm, and the outer screw rod 432 is a lead screw with a diameter of 48mm. The lower end of the inner screw rod 433 is inserted into the outer screw rod 432, and its height can be adjusted from 0 to 300mm via a plate support adjusting nut.

[0090] The top plate assembly 410, the tray assembly 420, and the tray adjusting ring 470 are all mounted on the inner screw 433, such as Figure 13 As shown. Specifically, as... Figures 16-18 As shown, the top plate assembly 410 includes a pre-stripped strip support plate secondary keel top plate 411. A top plate limiting plate 414 is provided at each of the four corners of the upper surface of the pre-stripped strip support plate secondary keel top plate 411. The four top plate limiting plates 414 together form a pre-stripped strip support plate secondary keel limiting groove 417. In use, the pre-stripped strip support plate secondary keel 800 is inserted into the pre-stripped strip support plate secondary keel limiting groove 417, and the pre-stripped strip support plate secondary keel 800 is limited and fixed by the pre-stripped strip support plate secondary keel limiting groove 417. Figure 1 As shown.

[0091] In addition, a protruding fixing post 416 for the early-release strip support plate secondary keel is provided at the center of the upper surface of the top plate 411 of the early-release strip support plate secondary keel. The fixing post 416 is located within the limiting groove 417 of the early-release strip support plate secondary keel. Correspondingly, a fixing post insertion hole is provided on the early-release strip support plate secondary keel 800, and the fixing post 416 is inserted into the fixing post insertion hole.

[0092] By setting the early-release strip support plate secondary keel limiting groove 417 and the early-release strip support plate secondary keel fixing column 416, the early-release strip support plate secondary keel 800 can be limited and fixed, so that the early-release strip support plate secondary keel 800 acts as a horizontal tie rod between the tops of two adjacent top support devices 400.

[0093] The early-release strip support plate secondary keel top plate 411 can be detachably connected to the top of the inner threaded rod 433 via threads. Specifically, a nut can be welded to the center of the lower surface of the early-release strip support plate secondary keel top plate 411, while a stud is installed at the top of the inner threaded rod 433. The stud is then screwed into the nut to install the early-release strip support plate secondary keel top plate 411 onto the inner threaded rod 433.

[0094] To achieve better fixation, such as Figure 17As shown, support plates 412 are respectively provided on the opposite sides of the top plate 411 of the early-stripping strip support plate secondary keel. The opposite sides of the two support plates 412 are connected by connecting ribs 413, so that the two support plates 412 and the two connecting ribs 413 together form an insertion port 415 for the inner screw 433 to pass through. During connection, the top of the inner screw 433 is inserted into the insertion port 415 and connected to the top plate 411 of the early-stripping strip support plate secondary keel. Through the limiting effect of the two support plates 412 and the two connecting ribs 413, the early-stripping strip support plate secondary keel top plate 411 and the inner screw 433 can be prevented from swinging relative to each other, thereby improving the stability between the two.

[0095] like Figure 14 , 15 As shown, the pallet assembly 420 includes two mating pallet clamping plates 421 and a locking element for locking the two pallet clamping plates 421. Each of the two pallet clamping plates 421 has an arc-shaped clamping flap 426 at the center of its clamping surface. When the two pallet clamping plates 421 are clamped together, the two arc-shaped clamping flaps 426 together form a cylinder to clamp the inner screw 433. Thus, when the two pallet clamping plates 421 are clamped together and supported by the pallet adjusting ring 470, the pallet assembly 420 can be fixed to the inner screw 433. The pallet adjusting ring 470 is threadedly connected to the inner screw 433. By clamping the pallet assembly 420 at different positions on the inner screw 433 and adjusting the pallet adjusting ring 470 to press against the lower end of the pallet assembly 420, the height of the pallet assembly 420 can be adjusted.

[0096] like Figure 14 As shown, the locking component includes a locking bolt 422 that passes through the two pallet clamps 421, and a locking nut 423 provided on the locking bolt 422; when the locking nut 423 is tightened, the two pallet clamps 421 can be clamped together.

[0097] To better support and fix the main keel 700, the top of the pallet clamp 421 is a flat plate, with main keel limiting grooves 424 at both ends. These two grooves are located on either side of the internal threaded rod 433. Specifically, two pallet limiting plates 427 are provided at both ends of the flat plate at the top of the pallet clamp 421, forming the aforementioned main keel limiting grooves 424. During support, the main keel 700 is engaged into the main keel limiting grooves 424. Figure 1 As shown.

[0098] In addition, the main keel limiting groove 424 of the pallet clamp 421 is provided with a clamping plate hole 425, which penetrates the flat plate on the pallet clamp 421. A connecting screw post is inserted into the clamping plate hole 425, and a fixing nut is installed on the connecting screw post. After the main keel 700 is inserted into the main keel limiting groove 424, the connecting screw post passes through the main keel 700 and the clamping plate hole 425 from top to bottom. Then, the fixing nut is screwed on the lower end of the connecting screw post for locking. This can better fix the main keel 700 to the pallet assembly 420, so that the main keel 700 also acts as a horizontal tie rod between two adjacent top support devices 400. At this time, the top of the top support device 400 is pulled together from the direction perpendicular to the strip support belt, so that the top of the top support device forms a horizontal and vertical connection, thus eliminating the free end of the top support device. Therefore, the vertical spacing between the top of the top support device and the uppermost horizontal tie rod can reach a maximum of 1500mm, which reduces the number of horizontal tie rods and lowers costs. Simultaneously, because the main keel 700 and the early-release strip support secondary keel 800 are fixed in place, when the pallet assembly is lowered by more than 100mm to remove the secondary keel 801, the detachment of the main keel 700 and secondary keel 801 can be better controlled, preventing the main and secondary keels from falling haphazardly and causing safety hazards, thus achieving safe early release.

[0099] In addition, when only the main keel 700 is removed, the pallet adjustment ring 470 is lowered and the two pallet clamps 421 are loosened to remove the pallet assembly 420 for use on other top support devices 400. This reduces the number of pallet assemblies 420 by about 50% while improving the turnover efficiency of the pallet assembly 420.

[0100] like Figure 12 As shown, the external screw 432 is provided with several main beam keel trays 440, and a tray adjusting nut 450 for supporting it is provided below the main beam keel tray 440; the main beam keel tray 440 is used to support the main beam keel.

[0101] Specifically, such as Figures 20-22 As shown, the main beam keel tray 440 includes a tray plate 442, a cylinder 441 disposed in the middle of the lower surface of the tray plate 442, a bracket reinforcing plate 444 connecting the tray plate 442 and the cylinder 441, and two tray limiting plates 443 respectively disposed on the upper surfaces of both ends of the tray plate 442; an external screw 432 passes through the cylinder 441 and the tray plate 442 in sequence, and the cylinder 441 and the external screw 432 are threadedly connected.

[0102] The pallet adjusting nut 450 includes a ring 451 with a handle 452 and a recess 453 on its top. The lower end of the cylindrical body 441 is inserted into the recess 453. The ring 451 is threadedly connected to the external threaded rod 432. The pallet adjusting nut 450 can support the main beam keel pallet 440. Figure 22 As shown.

[0103] Meanwhile, the external threaded rod 432 is also equipped with a buckle plate 460 for fixing the horizontal tie rod. After the multiple top support devices 400 are in place, the buckles 460 on the top support devices 400 are connected with horizontal tie rods, thus forming a support system to support the early-stripping floor formwork 100 and the early-stripping strip support plate 1001.

[0104] The C-groove 500 at the inside corner is used to support the wall formwork assembly and the early-stripping floor formwork 100 at the corner position, such as... Figure 24 As shown, it includes a vertically arranged back plate, a front panel and a bottom plate horizontally connected to the upper and lower ends of the back plate, and an overlapping plate connected to the front panel; the overlapping plate and the back plate are located on the two side edges of the front panel and are parallel to the back plate. Thus, the back plate, front panel, bottom plate and overlapping plate together form a C-shaped groove.

[0105] An L-shaped groove 510 is provided on the upper surface edge of the C-groove 500 near the early-stripping floor formwork 100. That is, the L-shaped groove 510 is provided on the edge of the panel of the C-groove 500 on the side away from the back plate, and the upper end of the overlapping plate is connected to the edge of the L-shaped groove 510. The L-shaped groove 510 extends along the length of the C-groove 500, and the end of the early-stripping floor formwork 100 overlaps in the L-shaped groove 510.

[0106] The depth of the L-shaped groove 510 is the same as the thickness of the early-stripping floor formwork 100. After the end of the early-stripping floor formwork 100 overlaps in the L-shaped groove 510, the upper surface of the early-stripping floor formwork 100 and the panel of the inside corner C-groove 500 can form a flat plane.

[0107] When the end of the early-stripping floor formwork 100 overlaps within the L-shaped groove 510, the bottom support surface of the L-shaped groove 510 provides support for the end of the early-stripping floor formwork 100. Simultaneously, the end face of the early-stripping floor formwork 100 adheres tightly to the side wall of the L-shaped groove 510, allowing for quick alignment and positioning of the early-stripping floor formwork 100, thus improving installation efficiency. Furthermore, due to the blocking effect of the bottom support surface of the L-shaped groove 510, grout will not leak between the side wall of the L-shaped groove 510 and the end face of the early-stripping floor formwork 100, effectively solving the problem of grout leakage between the internal corner C-groove 500 and the early-stripping floor formwork 100.

[0108] The inside of the C-groove 500 is provided with several C-groove reinforcing plates 520, which can improve the strength of the C-groove 500.

[0109] In addition, a clamping strip 540 is provided inside the internal corner C-groove 500. Specifically, the clamping strip 540 is located on the inner side of the overlapping plate of the internal corner C-groove 500 and forms a clamping opening 550 between it and the panel of the internal corner C-groove 500.

[0110] After the early-stripping floor formwork 100 overlaps the internal corner C-groove 500, the two snap-fit ​​parts 323 on the clamp 320 are respectively fastened to the clamping opening 550 on the internal corner C-groove 500 and the snap-fit ​​groove 315 on the early-stripping floor formwork 100 that holds the profile 310. The clamp 320 is used to splice the early-stripping floor formwork 1000 and the internal corner C-groove 500 together. In this embodiment, the clamp 320 is used to splice the early-stripping floor formwork 1000 and the internal corner C-groove 500 together, which facilitates installation and disassembly and solves the problem of rough disassembly.

[0111] like Figure 23 As shown, the wall formwork assembly includes a wall formwork support frame 600 and a wall formwork 900 installed on the side of the wall formwork support frame 600. An internal corner C-groove 500 is installed on the top of the wall formwork support frame 600 via a connecting assembly 530.

[0112] The wall formwork support frame 600 is a rectangular frame with a crossbeam 630 inside that connects its two opposite side plates. It also has a support beam 610 and a support column 620 inside that connect its top plate, bottom plate and crossbeam 630 to reinforce the wall formwork support frame 600.

[0113] like Figure 25 As shown, the connecting assembly 530 includes a connecting pin 531 and a retaining pin 532. The connecting pin 531 has a wide head 533 at its top and an opening extending axially at its lower end. Correspondingly, the width of the retaining pin 532 gradually decreases from one end to the other, making one end wide and the other end narrow.

[0114] The bottom plate of the internal corner C-groove 500 and the top plate of the wall formwork support frame 600 are both provided with mounting holes. When the internal corner C-groove 500 is placed on the wall formwork support frame 600, the mounting holes on the internal corner C-groove 500 are aligned with the mounting holes on the wall formwork support frame 600.

[0115] During installation, the connecting pin 531 is passed through the mounting holes in the bottom plate of the C-groove 500 and the top plate of the wall formwork support frame 600 from top to bottom. Since the diameter of the mounting hole is smaller than the diameter of the wide head 533, the connecting pin 531 will not fall out of the mounting hole. Then, the narrow end of the fixing pin 532 is passed through the opening. As the fixing pin 532 is gradually pushed into the opening, it gradually pushes upward against the top plate of the wall formwork support frame 600 until it holds the wall formwork support frame 600 in place. At this point, the wall formwork support frame 600 and the C-groove 500 are fixed in place.

[0116] In addition, multiple holes can be provided on the fixing pin 532. After the fixing pin 532 is pressed against the wall template support frame 600, a pin can be inserted into the corresponding hole to fix the fixing pin 532 and prevent the fixing pin 532 from disengaging from the connecting pin 531, which can make the installation more stable.

[0117] The inside corner C-groove 500 and the wall template support frame 600 are connected by a connecting component 530, which makes installation and disassembly more convenient compared to traditional connection methods.

[0118] Example 2

[0119] This embodiment is basically the same as Embodiment 1, except that the structure of the adjustment component of the clamp 320 is different. Figure 11 As shown, the adjustment assembly in this embodiment includes a clamping screw 334 disposed on the clamping base plate 321, a locking nut 335 disposed on the clamping screw 334, a connecting plate 336 disposed at the bottom of the movable clamping plate 324, and several adjusting plates 333 disposed on the connecting plate 336.

[0120] The clamping screw 334 extends from the end of the clamping base plate 321 and passes through all the adjusting plates 333, which can move along the clamping screw 334. Each adjusting plate 333 is provided with a through hole, and the clamping base plate 321 passes through at least one through hole on the adjusting plate 333. The clamping base plate 321 fixes the adjusting plate 333 so that it cannot rotate and can only move along the clamping screw 334.

[0121] When the locking nut 335 is turned, the locking nut 335 can push the adjusting plate 333, causing the movable clamping plate 324 to move towards the fixed clamping plate 322, thereby realizing the clamping function.

[0122] It should be noted that all features disclosed in this specification, or all steps in all methods or processes disclosed, may be combined in any way, except for mutually exclusive features and / or steps.

[0123] Furthermore, the specific embodiments described above are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this invention, and these solutions all fall within the scope of this invention and its protection. Those skilled in the art should understand that this specification and its accompanying drawings are illustrative and not intended to limit the scope of the claims. The scope of protection of this invention is defined by the claims and their equivalents.

Claims

1. A semi-prefabricated, safe, early-stripping building formwork structure, characterized in that, It includes several early-stripping floor templates (100) that are sequentially spliced ​​together by early-stripping strip support plates (101), a board keel assembly supported under the early-stripping floor templates (100) and the early-stripping strip support plates (101), a top support device (400) supported under the board keel assembly, and a wall template assembly connected to the outermost early-stripping floor template (100) through an inside corner C-groove (500); In addition, the joints of the early-stripping floor template (100) and the early-stripping strip support plate (101) are supported by the joint square tube assembly (200); and the early-stripping floor template (100) and the early-stripping strip support plate (101) spliced ​​together, as well as the early-stripping floor template (100) and the internal corner C groove (500), are clamped by clamps (320); the clamps (320) can also press the joint square tube assembly (200) against the two adjacent early-stripping floor templates (100) and early-stripping strip support plates (101); The joint square tube assembly (200) includes a square tube body (210) and a plurality of L-shaped profile assemblies (220) distributed along the splicing gap between two adjacent early-stripping floor templates (100) and early-stripping strip support plates (101). The L-shaped profile assembly (220) includes two L-shaped profiles (221) respectively disposed on the lower surface of the splicing ends of two adjacent early-stripping floor templates (100) and early-stripping strip support plates (101). The panel of the square tube body (210) is at least partially recessed inward to form a square tube U-shaped groove (211) extending along its axial direction. Both L-shaped profiles (221) are inserted into the square tube U-shaped groove (211). The clamp (320) presses the square tube body (210) upward. The L-shaped profile (221) includes an L-shaped plate (222) and two fan-shaped plates (223) respectively connected to both ends of the L-shaped plate (222); the square tube U-shaped groove (211) includes a horizontal part (212) and arc-shaped parts (213) respectively connected to both sides of the horizontal part (212). The horizontal part (212) forms the bottom of the square tube U-shaped groove (211), and the two arc-shaped parts (213) form the groove wall of the square tube U-shaped groove (211); when the L-shaped profile (221) is inserted into the square tube U-shaped groove (211), the arc-shaped surface of the fan-shaped plate (223) is in close contact with the arc-shaped part (213) of the square tube U-shaped groove (211). The clamp (320) includes a clamping structure and a tightening structure connected to the clamping structure; the clamping structure has an adjustable clamping cavity (337), and the tightening end of the tightening structure extends into the clamping cavity (337) and tightens against the square tube body (210). The lower surface of the splicing end of the early-stripping floor template (100) and the early-stripping strip support plate (101) is provided with a clamping profile (310). The clamping cavity (337) clamps the clamping profile (310) on two adjacent early-stripping floor templates (100) and early-stripping strip support plates (101) so that the two adjacent early-stripping floor templates (100) and early-stripping strip support plates (101) are spliced ​​together.

2. The semi-prefabricated safe early-stripping building formwork structure according to claim 1, characterized in that, The clamping structure includes a clamping base plate (321), a fixed clamping plate (322) disposed at one end of the clamping base plate (321), an adjusting component disposed at the other end of the clamping base plate (321), and a movable clamping plate (324) disposed on the adjusting component; the clamping cavity (337) is formed between the fixed clamping plate (322) and the movable clamping plate (324), and the adjusting component can drive the movable clamping plate (324) to move in order to adjust the size of the clamping cavity (337).

3. The semi-prefabricated safe early-stripping building formwork structure according to claim 2, characterized in that, The clamping structure includes a stud (331) that can move up and down on the clamp base plate (321). The top end of the stud (331) extends into the clamping cavity (337), and a clamp top plate (325) is installed on the top end of the stud (331); the clamp top plate (325) clamps the square tube body (210).

4. The semi-prefabricated safe early-stripping building formwork structure according to claim 1, characterized in that, The top support device (400) includes a telescopic support rod assembly (430), a top plate assembly (410) detachably mounted on top of the support rod assembly (430), a tray assembly (420) disposed on the support rod assembly (430) and located below the top plate assembly (410), and a first tray adjustment ring (470) sleeved on the support rod assembly (430) for adjusting the height of the tray assembly (420). The slab keel assembly includes a secondary slab keel (801) supported under the early-stripped floor formwork (100), an early-stripped strip support plate secondary keel (800) supported under the early-stripped strip support plate (101), and a main slab keel (700) supported under the secondary slab keel (801) and the early-stripped strip support plate secondary keel (800); the top plate assembly (410) supports the early-stripped strip support plate secondary keel (800), and the pallet assembly (420) supports the main slab keel (700).

5. The semi-prefabricated safe early-stripping building formwork structure according to claim 4, characterized in that, The pallet assembly (420) includes two pallet clamps (421) respectively clamped on both sides of the support rod assembly (430), locking members for locking the two pallet clamps (421), and connecting screw posts and fixing nuts for fixing the main keel (700); the two ends of the pallet clamps (421) are respectively provided with main keel limiting grooves (424), and clamping holes (425) are provided in the main keel limiting grooves (424); the main keel (700) is inserted into the main keel limiting groove (424), and the connecting screw posts pass through the main keel (700) and the clamping holes (425) in sequence and are then locked by the fixing nuts.

6. The semi-prefabricated safe early-stripping building formwork structure according to claim 4, characterized in that, The top plate assembly (410) includes an early-release strip support plate secondary keel top plate (411) threadedly connected to the top of the support rod assembly (430); the upper surface of the early-release strip support plate secondary keel top plate (411) is provided with an early-release strip support plate secondary keel limiting groove (417), and an early-release strip support plate secondary keel fixing post (416) is provided in the early-release strip support plate secondary keel limiting groove (417); the early-release strip support plate secondary keel (800) is provided with a fixing post insertion hole, the early-release strip support plate secondary keel (800) is inserted into the early-release strip support plate secondary keel limiting groove (417), and the early-release strip support plate secondary keel fixing post (416) is inserted into the fixing post insertion hole.

7. The semi-prefabricated safe early-stripping building formwork structure according to claim 1, characterized in that, The inner corner C-groove (500) has an L-shaped groove (510) extending along its length on the upper surface edge near the early-stripping floor template (100). The end of the early-stripping floor template (100) overlaps in the L-shaped groove (510). A clamping strip (540) is provided in the inner corner C-groove (500). The clamp (320) clamps the clamping strip (540) and the clamping profile (310) on the early-stripping floor template (100) so that the early-stripping floor template (1000) is spliced ​​together with the inner corner C-groove (500).

8. The semi-prefabricated safe early-stripping building formwork structure according to claim 1, characterized in that, The inside corner C-groove (500) is connected to the wall template assembly via a connecting component (530); the connecting component (530) includes a connecting pin (531) and a fixing pin (532); the top of the connecting pin (531) is provided with a wide head (533), and its lower end is provided with an opening extending in its axial direction; the connecting pin (531) passes through the bottom plate of the inside corner C-groove (500) and the top plate of the wall template assembly from top to bottom; the width of the fixing pin (532) gradually decreases from one end to the other end, and the fixing pin (532) passes through the opening and presses upward against the top plate of the wall template assembly.

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