Reusable support-free template and template system

Abstract

The utility model provides a reusable support-free formwork and formwork system, and belongs to the field of fabricated buildings. The support-free formwork at least comprises a standard section; the standard section at least comprises a standard bottom plate, a standard corrugated plate and standard side plates, the two side edges of the standard corrugated plate are connected to the standard bottom plate through the standard side plates, a cavity is formed between the wave trough and / or the wave crest of the standard corrugated plate and the standard bottom plate, and a pouring forming face is formed outside the surface of the standard bottom plate, or a pouring forming face is formed outside the surface of the standard corrugated plate. Compared with a traditional wood formwork and a traditional aluminum formwork, the corrugated plates of the unit type formwork provide higher rigidity in the mode that the corrugated plates protrude to form ribs, a scaffold at the bottom can be omitted, and construction measure cost is saved; the device can be repeatedly used and is high in economical efficiency; and when the standard corrugated plate is used as a pouring surface, concrete consumption can be saved, and floor self-weight is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of prefabricated buildings, and in particular relates to a reusable support-free formwork and formwork system. Background Technology

[0002] Current prefabricated composite floor slabs often require temporary supports due to insufficient rigidity. If temporary supports are not installed, additional costs need to be incurred in the prefabricated portion to improve its rigidity.

[0003] Currently, cast-in-place floor slabs generally use wooden or aluminum formwork, which needs to be placed on temporary supports. These temporary supports increase the workload on site and increase construction costs.

[0004] From an economic perspective, how to provide a low-cost, yet rigidity-compliant, support-free formwork is a technical problem that urgently needs to be solved in this utility model. Utility Model Content

[0005] One objective of this utility model is to provide a low-cost, yet rigidity-compliant, support-free template.

[0006] The second objective of this invention is to provide a low-cost, yet rigidity-compliant, support-free formwork system.

[0007] To achieve one of the objectives of this utility model, this utility model provides a reusable support-free template, comprising at least one standard section; the standard section includes a standard base plate, a standard corrugated plate, and standard side plates; the two sides of the standard corrugated plate are connected to the standard base plate through the standard side plates, and cavities are formed between the troughs and / or crests of the standard corrugated plate and the standard base plate; a casting surface is formed on the outer surface of the standard base plate, or a casting surface is formed on the outer surface of the standard corrugated plate.

[0008] Preferably, it also includes a standard connecting plate, through which the troughs and / or peaks of the standard waveform plate are connected to the standard base plate.

[0009] Preferably, the standard side plates on both sides of the standard segment are respectively provided with a first snap-fit ​​protrusion and a first snap-fit ​​groove that fit closely with the adjacent standard segment.

[0010] Preferably, at least the troughs of the standard waveform plate are flat plate structures, and the two ends of each trough are connected to the standard base plate via the standard connecting plate.

[0011] Preferably, the peak of the standard waveform board is a flat plate structure.

[0012] Preferably, the system further includes an adapter extension section, which includes an extension base plate, an extension waveform plate, an extension connecting plate, and an extension side plate corresponding to the standard base plate, the standard waveform plate, the standard connecting plate, and the standard side plate, respectively; the two sides of the extension waveform plate are connected to the extension base plate through the extension side plate, and the troughs and / or peaks of the extension waveform plate are connected to the extension base plate through the extension connecting plate; the adapter extension section is spliced ​​to the end of the standard section along the length direction of the standard section.

[0013] Preferably, the adapter extension segment and the standard segment are assembled and spliced ​​together by an assembly component; the assembly component includes a first splicing component, a second splicing component, and an assembly bolt, the first splicing component is fixed to the standard segment, the second splicing component is fixed to the adapter extension segment, and the assembly bolt is assembled into the first splicing component and the second splicing component through a hole.

[0014] Preferably, the first splicing component includes a first splicing plate and a first splicing frame, the first splicing frame being disposed on the first splicing plate and closely fitted to the edge of the standard waveform plate of the standard segment; the first splicing plate, in conjunction with the first splicing frame, is closely fitted to the edges of the standard base plate, the standard connecting plate and the standard side plate, and the assembly bolts are through holes in the first splicing plate.

[0015] Preferably, the second splicing component includes a second splicing plate and a second splicing frame, the second splicing frame being disposed on the second splicing plate and closely fitted to the edge of the extended corrugated plate of the adaptable extension section; the second splicing plate, in conjunction with the second splicing frame, is closely fitted to the edges of the extended base plate, the extended connecting plate and the extended side plate, and the assembly bolts are through holes in the second splicing plate.

[0016] Preferably, the first splicing plate is provided with a second snap-fit ​​protrusion and a second snap-fit ​​groove on both sides, and the second splicing plate is provided with a third snap-fit ​​protrusion and a third snap-fit ​​groove on both sides.

[0017] Preferably, the extended base plate and / or the standard base plate are provided with hand holes for mounting the assembly bolts.

[0018] The technical effects achieved by the above-mentioned technical solution of this utility model are derived from one or more of the following combinations:

[0019] Compared to traditional wooden and aluminum formwork, the corrugated plates of this utility model unit formwork provide greater rigidity by forming ribs, eliminating the need for bottom scaffolding and saving on construction costs; moreover, it can be reused, making it highly economical.

[0020] The corrugated plate with groove design saves on concrete usage and reduces the building's weight when the standard corrugated plate surface is used to form the casting surface.

[0021] To achieve the second objective of this utility model, this utility model provides a reusable supportless template system, which includes at least two or more supportless templates arranged side by side.

[0022] Preferably, two or more of the supportless templates are inserted by tensioning screws along the side-by-side close-fitting direction, and the two ends of the tensioning screws are tightened against the supportless templates by tensioning bolts to form a preload.

[0023] The technical effects achieved by the above-mentioned technical solution of this utility model are derived from one or more of the following combinations:

[0024] Compared to traditional wooden and aluminum formwork, the corrugated plates of this utility model unit formwork provide greater rigidity by forming ribs, eliminating the need for bottom scaffolding and saving on construction costs; moreover, it can be reused, making it highly economical.

[0025] The corrugated plate with groove design saves on concrete usage and reduces the building's weight when the standard corrugated plate surface is used to form the casting surface.

[0026] The modular assembly and standardized templates enable reuse across multiple projects, whereas conventional aluminum templates are designed for each project and lack versatility; furthermore, the adaptable extension section can accommodate formwork requirements for different spans. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the standard section structure of the support-free template of this utility model.

[0028] Figure 2 This is the front view of the standard section of the support-free template of this utility model.

[0029] Figure 3 This is an assembly diagram of the standard section and the adaptable extension section in the supportless template of this utility model.

[0030] Figure 4 This is a schematic diagram of the adaptable extension section structure of the support-free template of this utility model.

[0031] Figure 5 This is a schematic diagram of the assembly component structure of the support-free template of this utility model.

[0032] Figure 6 This is an assembly diagram of the support-free template system of this utility model.

[0033] Figure 7 This is an assembly effect diagram of the support-free template system of this utility model.

[0034] Figure 8 This is an installation effect diagram of the support-free template system of this utility model.

[0035] Among them: 1. Standard section; 11. Standard base plate; 12. Standard corrugated plate; 121. Standard corrugated plate crest; 122. Standard corrugated plate trough; 13. Standard side plate; 131. First snap-fit ​​protrusion; 132. First snap-fit ​​groove; 14. Standard connecting plate; 2. Adaptive extension section; 21. Extension base plate; 22. Extension corrugated plate; 23. Extension side plate; 231. Fourth snap-fit ​​protrusion; 232. Fourth snap-fit ​​groove; 2 4. Extension connecting plate; 31. First splicing component; 311. First splicing lower plate; 312. First splicing upper plate; 313. Second snap-fit ​​protrusion; 314. Second snap-fit ​​groove; 32. Second splicing component; 321. Second splicing lower plate; 322. Second splicing upper plate; 323. Third snap-fit ​​protrusion; 324. Third snap-fit ​​groove; 33. Assembly bolt; 4. Tensioning bolt; 5. Structural column; 6. Structural beam. Detailed Implementation

[0036] The following description is provided to enable those skilled in the art to implement and use the present invention and to incorporate it into specific application contexts. Various modifications and uses in different applications will be readily apparent to those skilled in the art, and the general principles defined herein are applicable to a wide range of embodiments. Therefore, the present invention is not limited to the embodiments given herein, but should be granted the broadest scope consistent with the principles and novel features disclosed herein.

[0037] In the following detailed description, numerous specific details are set forth to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that practice of the present invention is not necessarily limited to these specific details. In other words, well-known structures and devices are shown in block diagram form without being shown in detail to avoid obscuring the present invention.

[0038] Readers should note all documents and references submitted concurrently with this specification and open to public inspection, the contents of which are incorporated herein by reference. Unless otherwise expressly stated, all features disclosed in this specification (including any appended claims, abstracts, and drawings) may be replaced by alternative features for the same, equivalent, or similar purposes. Therefore, unless explicitly stated otherwise, each disclosed feature is merely one example of a set of equivalent or similar features.

[0039] Note that, where used, the markings left, right, front, back, top, bottom, front, back, clockwise, and counterclockwise are merely for convenience and do not imply any specific fixed direction. In fact, they are used to reflect the relative position and / or orientation between different parts of an object. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] Note that, in practice, "further," "preferably," "even further," and "more preferably" are simply starting points for describing another embodiment based on the foregoing embodiments. The combination of the content following "further," "preferably," "even further," or "more preferably" with the foregoing embodiments constitutes the complete configuration of another embodiment. Any combination of several "further," "preferably," "even further," or "more preferably" settings following the same embodiment can form yet another embodiment.

[0042] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the aspects described below with reference to the accompanying drawings and specific embodiments are merely exemplary and should not be construed as limiting the scope of protection of the present invention in any way.

[0043] Example 1:

[0044] Please see Figures 1-5 This embodiment provides a reusable, support-free template, which includes at least one standard segment 1. The standard segment 1 includes at least a standard base plate 11, a standard corrugated plate 12, and a standard side plate 13. The two sides of the standard corrugated plate 12 are connected to the standard base plate 11 through the standard side plate 13. A cavity is formed between the troughs and / or crests of the standard corrugated plate 12 and the standard base plate 11. A casting surface is formed on the outer surface of the standard base plate 11, or a casting surface is formed on the outer surface of the standard corrugated plate 12.

[0045] In this embodiment, the supportless formwork can form a casting surface on both sides. When the casting surface is formed on the outside of the standard base plate 11, a flat floor slab bottom surface is formed after the supportless formwork is removed. When the casting surface is formed on the outside of the standard corrugated plate 12, a corrugated floor slab bottom surface is formed after the supportless formwork is removed. At the same time, concrete can be relatively saved when casting the floor slab in place.

[0046] As an optional implementation of this embodiment, the standard base plate 11 can also be implemented as a corrugated plate, that is, the top and bottom surfaces of the supportless template are both corrugated rib structures; as a preferred implementation, the base plate in this embodiment can be implemented as a flat plate structure.

[0047] To improve the support capacity of the standard waveform board 12, please refer to... Figure 2 This embodiment also includes a standard connecting plate 14, through which the troughs and / or peaks of the standard waveform plate 12 are connected to the standard base plate 11, thereby enabling the base plate to support the standard waveform plate 12.

[0048] In this embodiment, the standard waveform board 12 should have at least one standard waveform board peak 121 or a standard waveform board trough 122. As a preferred embodiment, the standard waveform board 12 in this embodiment is as follows: Figure 2 As shown, the peak 121 and trough 122 of the standard waveform board are flat plate structures, but this is not the only limitation of this embodiment; they can also be arc-shaped plate structures. When the peak 121 and trough 122 of the standard waveform board are flat plate structures, they are connected and supported to the standard base plate 11 by standard connecting plates 14 at both ends of the trough.

[0049] In this embodiment, the standard side plate 13 is connected to both sides of the standard corrugated plate 12 and the standard base plate 11, so that the supportless template forms a closed structure. The standard side plate 13 is preferably a flat plate, forming a close fit with the adjacent standard segment 1. Furthermore, in order to prevent the adjacent standard segments 1 from misaligning, the standard side plate 13 on both sides of the standard segment 1 is respectively provided with a first snap-fit ​​protrusion 131 and a first snap-fit ​​groove 132 for close fit with the adjacent standard segment 1. The first snap-fit ​​protrusion 131 and the first snap-fit ​​groove 132 can be arranged in segments or can be arranged along the length direction of the standard segment 1.

[0050] In this embodiment, standard segment 1 is prefabricated in the factory with a fixed standard length. However, different floor slab spans always vary due to design and other reasons. To improve the versatility and adaptability of this embodiment, please refer to... Figure 2 , Figure 3 This embodiment also includes an adapter extension section 2 to be used in conjunction with the standard section 1 for installation. The standard section 1 is 3 meters long and is used as the standard for mass production in the factory. It is used in conjunction with adapter extension sections 2 of 10cm, 20cm, 30cm, etc. It should be noted that this data is only used as an example and is not the only practical data.

[0051] Structurally, the adapter extension 2 is identical to the standard section 1, differing only in length. Therefore, the adapter extension 2 includes an extension base plate 21, an extension waveform plate 22, an extension connecting plate 24, and an extension side plate 23, corresponding to the standard base plate 11, the standard waveform plate 12, the standard connecting plate 14, and the standard side plate 13, respectively. The two sides of the extension waveform plate 22 are connected to the extension base plate 21 via the extension side plate 23, and the troughs and / or peaks of the extension waveform plate 22 are connected to the extension base plate 21 via the extension connecting plate 24. The adapter extension 2 is spliced ​​to the end of the standard section 1 along its length.

[0052] Given the structure of standard segment 1, the extended waveform board 22 should have at least one peak or trough. As a preferred embodiment of this work, the extended waveform board 22 in this embodiment is as follows: Figure 4 As shown, the crests and troughs of the extended waveform plate 22 are flat plate structures, but this is not the only limitation of this embodiment; it can also be an arc-shaped plate structure. When the crests and troughs of the extended waveform plate 22 are flat plate structures, they are connected and supported to the extended base plate 21 by an extension connecting plate 24 at both ends of the trough.

[0053] In this embodiment, please refer to Figure 4 The extended side plate 23 connects to both sides of the extended corrugated plate 22 and the extended base plate 21, forming a closed structure for the supportless template. The extended side plate 23 is preferably a flat plate, forming a tight fit with the adjacent adaptable extended section 2. Furthermore, to prevent misalignment between adjacent adaptable extended sections 2, the extended side plates 23 on both sides of the adaptable extended section 2 are respectively provided with a fourth engaging protrusion 231 and a fourth engaging groove 232 that fit tightly with the adjacent adaptable extended section 2. The fourth engaging protrusion 231 and the fourth engaging groove 232 can be segmented or can be continuous along the length of the adaptable extended section 2.

[0054] In this embodiment, the adaptable extension segment 2 and the standard segment 1 are assembled and spliced ​​together using an assembly component. Specifically, the assembly component includes a first splicing member 31, a second splicing member 32, and an assembly bolt 33. The first splicing member 31 is fixed to the standard segment 1, the second splicing member 32 is fixed to the adaptable extension segment 2, and the assembly bolt 33 is assembled into the first splicing member 31 and the second splicing member 32 through holes. Furthermore, the shapes of the first splicing member 31 and the second splicing member 32 should be adapted to the cross-sections of the standard segment 1 and the adaptable extension segment 2, thereby facilitating the close splicing of adjacent supportless templates.

[0055] For further details, please refer to Figure 5The first splicing component 31 includes a first splicing upper plate 312 and a first splicing lower plate 311. The first splicing upper plate 312 is disposed on the first splicing lower plate 311 and is closely spliced ​​to the end face of the standard waveform plate 12 of the standard segment 1. The first splicing upper plate 312 cooperates with the first splicing lower plate 311 to be closely spliced ​​to the end face formed by the standard base plate 11, the standard connecting plate 14 and the standard side plate 13. The mounting bolt 33 passes through the hole in the first splicing lower plate 311.

[0056] Correspondingly, the second splicing component 32 includes a second splicing upper plate 322 and a second splicing lower plate 321. The second splicing upper plate 322 is disposed on the second splicing lower plate 321 and is closely fitted to the end face of the extension corrugated plate 22 that is adapted to the extension section 2. The second splicing upper plate 322 cooperates with the second splicing lower plate 321 to be closely fitted to the end face formed by the extension base plate 21, the extension connecting plate 24 and the extension side plate 23. The mounting bolt 33 passes through the hole in the second splicing lower plate 321.

[0057] To facilitate the seamless integration of adjacent supportless templates, second locking protrusions 313 and second locking grooves 314 are respectively provided on both sides of the first splicing member 31, and third locking protrusions 323 and third locking grooves 324 are respectively provided on both sides of the second splicing member 32. When adjacent supportless templates are seamlessly spliced, the first locking protrusions 131 and first locking grooves 132 of standard section 1 in adjacent supportless templates are seamlessly spliced; correspondingly, the second locking protrusions 313 and second locking grooves 314 are seamlessly spliced, and the third locking protrusions 323 and third locking grooves 324 are seamlessly spliced.

[0058] To facilitate the installation of assembly components, hand holes for installing assembly bolts 33 are provided on the extended base plate 21 and / or the standard base plate 11. Specifically, hand holes for installing assembly bolts 33 are provided on the extended base plate 21, allowing workers to easily reach in and install the assembly bolts 33.

[0059] The beneficial effects of this embodiment:

[0060] Compared to traditional wooden and aluminum formwork, the corrugated plates of this utility model unit formwork provide greater rigidity by forming ribs, eliminating the need for bottom scaffolding and saving on construction costs; moreover, it can be reused, making it highly economical.

[0061] The corrugated plate with groove design saves on concrete usage and reduces the building's weight when the standard corrugated plate forms a casting surface on its 12 sides.

[0062] Example 2:

[0063] Please see Figures 6-8 and combined Figures 1-5This embodiment provides a reusable supportless template system, comprising at least two closely spaced supportless templates side by side. Each supportless template includes at least one standard section 1. This standard section 1 includes at least a standard base plate 11, a standard corrugated plate 12, and standard side plates 13. The two sides of the standard corrugated plate 12 are connected to the standard base plate 11 via the standard side plates 13. A cavity is formed between the troughs and / or crests of the standard corrugated plate 12 and the standard base plate 11. A casting surface is formed on the outer surface of the standard base plate 11, or a casting surface is formed on the outer surface of the standard corrugated plate 12.

[0064] In this embodiment, the supportless formwork can form a casting surface on both sides. When the casting surface is formed on the outside of the standard base plate 11, a flat floor slab bottom surface is formed after the supportless formwork is removed. When the casting surface is formed on the outside of the standard corrugated plate 12, a corrugated floor slab bottom surface is formed after the supportless formwork is removed. At the same time, concrete can be relatively saved when casting the floor slab in place.

[0065] As an optional implementation of this embodiment, the standard base plate 11 can also be implemented as a corrugated plate, that is, the top and bottom surfaces of the supportless template are both corrugated rib structures; as a preferred implementation, the base plate in this embodiment can be implemented as a flat plate structure.

[0066] To improve the support capacity of the standard waveform board 12, please refer to... Figure 2 This embodiment also includes a standard connecting plate 14, through which the troughs and / or peaks of the standard waveform plate 12 are connected to the standard base plate 11, thereby enabling the base plate to support the standard waveform plate 12.

[0067] In this embodiment, the standard waveform board 12 should have at least one standard waveform board crest 121 or a standard waveform board trough 122. As a preferred embodiment, the standard waveform board 12 in this embodiment is shown in the figure. The standard waveform board crest 121 and standard waveform board trough 122 are flat plate structures, but this is not the only limitation of this embodiment; they can also be arc-shaped plate structures. When the standard waveform board crest 121 and standard waveform board trough 122 are flat plate structures, they are connected and supported to the standard base plate 11 by standard connecting plates 14 at both ends of the trough.

[0068] In this embodiment, the standard side plate 13 is connected to both sides of the standard corrugated plate 12 and the standard base plate 11, so that the supportless template forms a closed structure. The standard side plate 13 is preferably a flat plate, forming a close fit with the adjacent standard segment 1. Furthermore, in order to prevent the adjacent standard segments 1 from misaligning, the standard side plate 13 on both sides of the standard segment 1 is respectively provided with a first snap-fit ​​protrusion 131 and a first snap-fit ​​groove 132 for close fit with the adjacent standard segment 1. The first snap-fit ​​protrusion 131 and the first snap-fit ​​groove 132 can be arranged in segments or can be arranged along the length direction of the standard segment 1.

[0069] In this embodiment, standard segment 1 is prefabricated in the factory with a fixed standard length. However, different floor slab spans always vary due to design and other reasons. To improve the versatility and adaptability of this embodiment, please refer to... Figure 2 , Figure 3 This embodiment also includes an adapter extension section 2 to be used in conjunction with the standard section 1 for installation. The standard section 1 is 3 meters long and is used as the standard for mass production in the factory. It is used in conjunction with adapter extension sections 2 of 10cm, 20cm, 30cm, etc. It should be noted that this data is only used as an example and is not the only practical data.

[0070] Structurally, the adapter extension 2 is identical to the standard section 1, differing only in length. Therefore, the adapter extension 2 includes an extension base plate 21, an extension waveform plate 22, an extension connecting plate 24, and an extension side plate 23, corresponding to the standard base plate 11, the standard waveform plate 12, the standard connecting plate 14, and the standard side plate 13, respectively. The two sides of the extension waveform plate 22 are connected to the extension base plate 21 via the extension side plate 23, and the troughs and / or peaks of the extension waveform plate 22 are connected to the extension base plate 21 via the extension connecting plate 24. The adapter extension 2 is spliced ​​to the end of the standard section 1 along its length.

[0071] Given the structure of standard segment 1, the extended waveform board 22 should have at least one peak or trough. As a preferred embodiment of this work, the extended waveform board 22 in this embodiment is as follows: Figure 4 As shown, the crests and troughs of the extended waveform plate 22 are flat plate structures, but this is not the only limitation of this embodiment; it can also be an arc-shaped plate structure. When the crests and troughs of the extended waveform plate 22 are flat plate structures, they are connected and supported to the extended base plate 21 by an extension connecting plate 24 at both ends of the trough.

[0072] In this embodiment, please refer to Figure 4 The extended side plate 23 connects to both sides of the extended corrugated plate 22 and the extended base plate 21, forming a closed structure for the supportless template. The extended side plate 23 is preferably a flat plate, forming a tight fit with the adjacent adaptable extended section 2. Furthermore, to prevent misalignment between adjacent adaptable extended sections 2, the extended side plates 23 on both sides of the adaptable extended section 2 are respectively provided with a fourth engaging protrusion 231 and a fourth engaging groove 232 that fit tightly with the adjacent adaptable extended section 2. The fourth engaging protrusion 231 and the fourth engaging groove 232 can be segmented or can be continuous along the length of the adaptable extended section 2.

[0073] In this embodiment, the adaptable extension segment 2 and the standard segment 1 are assembled and spliced ​​together using an assembly component. Specifically, the assembly component includes a first splicing member 31, a second splicing member 32, and an assembly bolt 33. The first splicing member 31 is fixed to the standard segment 1, the second splicing member 32 is fixed to the adaptable extension segment 2, and the assembly bolt 33 is assembled into the first splicing member 31 and the second splicing member 32 through holes. Furthermore, the shapes of the first splicing member 31 and the second splicing member 32 should be adapted to the cross-sections of the standard segment 1 and the adaptable extension segment 2, thereby facilitating the close splicing of adjacent supportless templates.

[0074] For further details, please refer to Figure 5 The first splicing component 31 includes a first splicing upper plate 312 and a first splicing lower plate 311. The first splicing upper plate 312 is disposed on the first splicing lower plate 311 and is closely spliced ​​to the end face of the standard waveform plate 12 of the standard segment 1. The first splicing upper plate 312 cooperates with the first splicing lower plate 311 to be closely spliced ​​to the end face formed by the standard base plate 11, the standard connecting plate 14 and the standard side plate 13. The mounting bolt 33 passes through the hole in the first splicing lower plate 311.

[0075] Correspondingly, the second splicing component 32 includes a second splicing upper plate 322 and a second splicing lower plate 321. The second splicing upper plate 322 is disposed on the second splicing lower plate 321 and is closely fitted to the end face of the extension corrugated plate 22 that is adapted to the extension section 2. The second splicing upper plate 322 cooperates with the second splicing lower plate 321 to be closely fitted to the end face formed by the extension base plate 21, the extension connecting plate 24 and the extension side plate 23. The mounting bolt 33 passes through the hole in the second splicing lower plate 321.

[0076] To facilitate the seamless integration of adjacent supportless templates, second locking protrusions 313 and second locking grooves 314 are respectively provided on both sides of the first splicing member 31, and third locking protrusions 323 and third locking grooves 324 are respectively provided on both sides of the second splicing member 32. When adjacent supportless templates are seamlessly spliced, the first locking protrusions 131 and first locking grooves 132 of standard section 1 in adjacent supportless templates are seamlessly spliced; correspondingly, the second locking protrusions 313 and second locking grooves 314 are seamlessly spliced, and the third locking protrusions 323 and third locking grooves 324 are seamlessly spliced.

[0077] To facilitate the installation of assembly components, hand holes for installing assembly bolts 33 are provided on the extended base plate 21 and / or the standard base plate 11. Specifically, hand holes for installing assembly bolts 33 are provided on the extended base plate 21, allowing workers to easily reach in and install the assembly bolts 33.

[0078] Furthermore, two or more unsupported formwork panels are threaded through by tensioning bolts along the parallel, closely spaced direction, with the ends of the tensioning bolts pressed against the unsupported formwork panels by tensioning bolts 4 to form a preload. Even further, multiple tensioning bolts can be arranged side-by-side at intervals, threaded through the standard section 1 of the parallel, closely spaced unsupported formwork panels, thus increasing the rigidity of large-span floor slabs.

[0079] During installation, the structural beams 6 and structural columns 5 are installed or formed into a frame structure. The supportless formwork system of this embodiment can be directly installed on the structural beams 6 of each floor. Specifically, using the conventional corbel installation method, corbels are installed on the side of the structural beams 6, and each supportless formwork of the supportless formwork system is closely assembled side by side and installed one by one onto the corbel.

[0080] The beneficial effects of this embodiment:

[0081] Compared to traditional wooden and aluminum formwork, the corrugated plates of this utility model unit formwork provide greater rigidity by forming ribs, eliminating the need for bottom scaffolding and saving on construction costs; moreover, it can be reused, making it highly economical.

[0082] The corrugated plate with groove design saves on concrete usage and reduces the building's weight when the standard corrugated plate forms a casting surface on its 12 sides.

[0083] The modular assembly and standardized templates enable reuse across multiple projects, whereas conventional aluminum templates are designed for each project and lack versatility; furthermore, the extended section 2 can accommodate formwork requirements of different spans.

[0084] Furthermore, the present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A reusable, free-standing formwork, characterized by, At least comprising a standard section; the standard section comprises a standard bottom plate, a standard wave-shaped plate and a standard side plate; two side edges of the standard wave-shaped plate are connected to the standard bottom plate through the standard side plate, and a wave trough and / or a wave crest of the standard wave-shaped plate forms a cavity with the standard bottom plate; an external surface of the standard bottom plate forms a casting forming surface, or an external surface of the standard wave-shaped plate forms a casting forming surface.

2. The reusable unsupported formwork of claim 1, wherein: The standard section further comprises a standard connecting plate, and the wave trough and / or the wave crest of the standard wave-shaped plate are connected to the standard bottom plate through the standard connecting plate.

3. The reusable unsupported formwork of claim 2, wherein: The standard side plates at two edges of the standard section are respectively provided with a first clamping protrusion and a first clamping groove for tightly splicing with adjacent standard sections.

4. The reusable unsupported formwork of claim 2, wherein: At least the wave trough of the standard wave-shaped plate is a flat plate structure, and two end turning points of each wave trough are connected to the standard bottom plate through the standard connecting plate.

5. The reusable, free-standing formwork of claim 2, wherein: The standard section further comprises an adaptive extension section, the adaptive extension section comprises an extension bottom plate, an extension wave-shaped plate, an extension connecting plate and an extension side plate corresponding to the standard bottom plate, the standard wave-shaped plate, the standard connecting plate and the standard side plate respectively; two side edges of the extension wave-shaped plate are connected to the extension bottom plate through the extension side plate, and a wave trough and / or a wave crest of the extension wave-shaped plate are connected to the extension bottom plate through the extension connecting plate; the adaptive extension section is spliced to an end of the standard section along a length direction of the standard section.

6. The reusable, free-standing formwork of claim 5, wherein: The adaptive extension section and the standard section are spliced through an assembly component; the assembly component comprises a first splicing piece, a second splicing piece and an assembly bolt, the first splicing piece is fixed to the standard section, the second splicing piece is fixed to the adaptive extension section, and the assembly bolt is assembled through the first splicing piece and the second splicing piece.

7. The reusable, free-standing formwork of claim 6, wherein: Two sides of the first splicing piece are respectively provided with a second clamping protrusion and a second clamping groove, and two sides of the second splicing piece are respectively provided with a third clamping protrusion and a third clamping groove.

8. The reusable, free-standing formwork of claim 6, wherein: The extension bottom plate and / or the standard bottom plate are provided with a hand hole for mounting the assembly bolt.

9. A reusable unsupported formwork system characterised in that, At least comprising two or more than two free-supporting formworks as claimed in any one of claims 1-8 which are tightly spliced side by side.

10. The self-supporting formwork system of claim 9, wherein, Two or more than two free-supporting formworks are provided with a tensioning screw along a tightly splicing direction, and two ends of the tensioning screw are tightly pressed to the free-supporting formworks through a tensioning bolt to form a pre-tightening force.

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