Ribbed floor formwork

Abstract

The utility model relates to the technical field of dense rib floor assembly, and discloses a dense rib floor formwork which comprises two side formworks. The extension piece is arranged between the two side modules, and the side modules and the extension piece are spliced to form a hollow structure with a containing cavity; and the first clamping part and the second clamping part are arranged at the splicing position of the side module and the extension piece, are arranged on the inner surface facing the containing cavity, and are mutually clamped and fixed in the splicing direction parallel to and perpendicular to the side module and the extension piece at the same time. According to the multi-ribbed floor formwork provided by the utility model, the first clamping part and the second clamping part are mutually clamped and fixed in the direction parallel to and perpendicular to the splicing direction, so that the overall structure of the formwork is firm, the formwork can bear larger pressure and impact force in the construction process, and the formwork is not easy to deform and damage; the clamping fixing mode does not need to use complex connecting tools and tedious installation steps, and the construction efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of assembling dense-ribbed floor panels, in particular to a dense-ribbed floor panel formwork. Background Art

[0002] During the traditional multi-ribbed floor formwork construction process, the rib beam lines are first laid out, followed by the formwork being laid out sequentially along the positioning lines and secured to the base formwork with nails. However, most current formwork is of a standard specification, making it unusable in corners and structural areas involving irregularly slanted beams.

[0003] Multi-ribbed floor slabs usually have complex geometric shapes and structural requirements. Different construction projects have different requirements in terms of floor span, load, and spatial layout. The column grid layout may have irregular grids such as inclined beams, making it difficult for the edge shape of the multi-ribbed floor slab to form a square. Beveled grid areas are more common, and the edges are mostly narrow and long areas of varying widths. Conventional square regular-shaped formwork is difficult to adapt to the edge position. Usually, formwork is not placed in these areas, and concrete is poured directly to make them a solid part. However, this operation method increases the self-weight of the multi-ribbed floor slab, increases the difficulty of construction, and leads to unclear force in the solid area of ​​the edge structure. It also faces difficulties in pre-embedding the floor slab reinforcement during construction.

[0004] To address this, a solution has been proposed, which involves installing widening strips between the two formworks. The number of widening strips can be adjusted as needed, but the formworks and widening strips are connected sequentially via flat rods, making assembly and disassembly inconvenient and impacting construction efficiency. Another approach is to connect the parts using snap-fit ​​connections, but this requires tongue-and-groove connections, which increases the number of processing steps and impacts construction efficiency. Utility Model Content

[0005] In view of this, the utility model provides a multi-rib floor formwork to solve the problems of inconvenient assembly and disassembly of existing formwork and low construction efficiency.

[0006] The utility model provides a multi-rib floor formwork, comprising:

[0007] two side moldings;

[0008] At least one extension piece, the extension piece is arranged between the two side mold pieces, and the side mold pieces and the extension piece are spliced ​​to form a hollow structure with an accommodating cavity;

[0009] The first clamping portion and the second clamping portion are arranged at the splicing position of the side module and the extension member, and are both arranged on the inner surface facing the accommodating cavity. The first clamping portion and the second clamping portion are clamped and fixed to each other in a direction that is both parallel and perpendicular to the splicing direction of the side module and the extension member.

[0010] Optionally, the first clamping portion is a male or female port formed along the inner surface of the side module or the extension member extending toward the accommodating cavity, and the second clamping portion is a female or male port formed along the inner surface of the side module or the extension member extending toward the accommodating cavity.

[0011] Optionally, the female port is a snap-fit ​​groove extending to the position of the male port, and the male port is a snap-fit ​​member extending along the edge of the side module or the extension member toward the accommodating cavity, and the snap-fit ​​member is suitable for snapping into the snap-fit ​​groove.

[0012] Optionally, the snap-fit ​​groove includes a supporting portion, a connecting portion and a clamping portion which are connected in sequence and are integrally formed with the side module or the extension member, and the supporting portion is an inclined support; an arc-shaped transition surface is provided at the connection between the snap-fit ​​member and the extension member or the side module.

[0013] Optionally, the side mold and the extension piece both include a top mold piece arranged on the upper part and a side mold piece arranged on the side, and the side mold piece is arranged inclined relative to the top mold piece. After the side mold piece and the extension piece are spliced ​​together, a frustum structure with an accommodating cavity is formed.

[0014] Optionally, the first clamping portion and the second clamping portion are arranged at the splicing position of the side mold and the extension member located on the top mold plate, and the splicing position of the side mold and the extension member located on the side mold plate is also provided with a locking structure, and the locking structure is suitable for achieving a fixed connection between the side mold and the extension member.

[0015] Optionally, a plurality of locking structures are provided.

[0016] Optionally, the locking structure includes a plurality of locking holes, which are arranged at the joint position of the side template between the side template and the extension member; and also includes a locking bolt and a locking nut, when the locking bolt passes through the locking hole and is threadedly connected to the locking nut.

[0017] Optionally, a connecting plate is further included, which is arranged on the top template, the connecting plate fully covers at least one of the extension members and at least partially covers the side template, and the connecting plate is detachably connected to the top template.

[0018] Optionally, a through hole is provided on the top template, and a corresponding threaded hole is provided on the connecting plate; and a fixing screw is further included, and the fixing screw passes through the through hole and is detachably connected to the threaded hole.

[0019] Beneficial effects

[0020] The ribbed floor formwork provided by the utility model includes two side molds; at least one extension member, which is arranged between the two side molds, and the side molds and the extension member are spliced ​​to form a hollow structure with an accommodating cavity; the first clamping portion and the second clamping portion are arranged at the splicing position of the side mold and the extension member, and are both arranged on the inner surface facing the accommodating cavity, and the first clamping portion and the second clamping portion are clamped and fixed to each other in a direction that is simultaneously parallel and perpendicular to the splicing direction of the side mold and the extension member.

[0021] The ribbed floor formwork of the present structure is a hollow structure formed by splicing side forms and at least one extension part, which are fixed to each other in parallel and perpendicular to the splicing direction by the first clamping part and the second clamping part, so that the overall structure of the formwork is firm, can withstand greater pressure and impact force during construction, and is not easy to deform or damage; the first clamping part and the second clamping part are provided to form a clamping structure, and the clamping and fixing method does not require the use of complex connection tools and tedious installation steps, which greatly improves construction efficiency; the clamping method can ensure that the connection between components is accurate, reduce errors and adjustment time during installation, and ensure construction quality. The convenient and efficient installation also reduces labor costs and construction time, and further improves economic benefits; the appropriate number of extension parts can be selected according to actual needs to form formworks of various lengths, avoiding material waste and reducing costs.

[0022] The ribbed floor formwork of this structure has the first clamping part and the second clamping part arranged on the inner surface of the accommodating cavity. The clamping design of the inner surface makes the clamping part inside the formwork, which is not easily directly impacted and damaged when subjected to external forces. When the formwork bears the pressure of the floor concrete and various external forces during the construction process, the clamping part can maintain the connection state more stably, ensuring the firmness of the overall structure of the formwork; during installation, the splicing position of the side formwork and the extension part can be clearly seen from the outside, which is convenient for workers to perform accurate positioning and splicing operations; at the same time, since the clamping part is not exposed, the possibility of clamping failure due to external collision during installation is also reduced; the inner surface clamping does not affect the flatness of the outer surface of the formwork, so that the bottom surface of the floor is smoother after pouring concrete, reducing the surface treatment work required in the later stage and improving the construction quality; and there is no need to process additional connection structures such as tongue and groove, so the processing efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a front view of a ribbed floor formwork according to an embodiment of the present utility model;

[0025] Figure 2 A top view of a ribbed floor formwork according to an embodiment of the present invention;

[0026] Figure 3 for Figure 2 Schematic diagram of the cross section of AA;

[0027] Figure 4 for Figure 3 An enlarged schematic diagram of point A in FIG.

[0028] Figure 5 for Figure 2 Schematic diagram of the cross section along BB.

[0029] Description of reference numerals:

[0030] 1. Side mold; 2. Extension piece; 3. Snap-in groove; 31. Support part; 32. Connecting part; 33. Clamping part; 4. Snap-in piece; 5. Locking hole; 6. Connecting plate. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0032] The following combination Figures 1 to 5 , describing the embodiments of the present utility model.

[0033] A multi-ribbed floor formwork, comprising:

[0034] Two side modules 1;

[0035] At least one extension piece 2, the extension piece 2 is arranged between the two side modules 1, and the side modules 1 and the extension piece 2 are spliced ​​to form a hollow structure with an accommodating cavity;

[0036] The first clamping portion and the second clamping portion are arranged at the splicing position of the side module 1 and the extension member 2, and are both arranged on the inner surface facing the accommodating cavity. The first clamping portion and the second clamping portion are clamped and fixed to each other in a direction that is both parallel and perpendicular to the splicing direction of the side module 1 and the extension member 2.

[0037] It is easy to understand that the number of extension pieces 2 can be determined based on the space limitations of the construction site. If the construction site is narrow, it may not be possible to use too many extension pieces 2 for splicing. The number of extension pieces 2 needs to be reasonably determined based on the actual space conditions. In this embodiment, the number of extension pieces 2 is selected as two. In other embodiments, one, three, or more extension pieces 2 can also be selected. There is no limit to the number here.

[0038] It is easy to understand that the main structures of the two side modules 1 are symmetrically mirrored, so that the side modules 1 can use the same production process and mold, which greatly reduces production costs and production time; and the mirrored side modules 1 are easier to identify and locate during installation, and workers can quickly and accurately perform splicing and installation, reducing installation errors and adjustment time; if a side module 1 is damaged during use, since the mirrored side modules 1 are basically the same, it is easier to find replacement parts for replacement, reducing maintenance costs and time.

[0039] It should be noted that the first clamping portion and the second clamping portion are clamped and fixed to each other in a direction that is parallel and perpendicular to the splicing direction of the side formwork 1 and the extension 2. The clamping and fixing in the parallel direction can effectively prevent the side formwork 1 and the extension 2 from sliding relative to each other after splicing. When the formwork is subjected to the pressure of the concrete from above and various horizontal forces during the construction process, the clamping in the parallel direction can ensure that the various components are tightly connected without misalignment or separation, thereby ensuring the overall structural stability of the floor. The clamping and fixing in the vertical direction can resist vertical tension and pressure. During the concrete pouring process, the formwork needs to withstand vertical forces such as the gravity of the concrete and the upward buoyancy that may be generated. The clamping in the vertical direction can firmly combine the side formwork 1 and the extension 2 together, preventing the formwork from deforming or separating in the vertical direction, and further improving the bearing capacity and safety of the floor.

[0040] This embodiment provides a first clamping portion and a second clamping portion. During installation, the parallel and vertical clamping design makes the splicing operation of the side module 1 and the extension 2 simpler and faster. Workers only need to splice the various components in the correct direction, and the clamping structure will be automatically fixed without the need for complex connection tools and techniques, greatly reducing the difficulty and cost of construction; during dismantling, this clamping fixation method is also easy to disassemble. Since the design of the clamping structure is relatively simple, the side module 1 and the extension 2 can be easily separated by appropriate tools or methods without causing excessive damage to the floor structure, facilitating the reuse and recycling of the formwork.

[0041] Another optional embodiment can also incorporate diagonal snap-fit ​​structures at the joints between the side mold 1 and the extension 2. For example, a protrusion and a groove can be provided at diagonal positions on the side mold 1 and the extension 2. When joined, the protrusion snaps into the groove, achieving a secure connection. This design provides securing force in two diagonal directions on the horizontal plane, enhancing the stability of the formwork.

[0042] Another alternative embodiment is to use a rotating snap-fit ​​connection at the joint between the side module 1 and the extension member 2. A columnar structure with a snap-fitting opening can be provided on the side module 1, and a corresponding, rotatable snap-fitting component can be provided on the extension member 2. During installation, the extension member 2 is rotated and snapped into the snap-fitting opening on the side module 1 to secure the connection.

[0043] The ribbed floor formwork provided by the embodiment of the present invention is a hollow structure formed by splicing an edge formwork 1 and at least one extension member 2, which is fixed to each other in parallel and perpendicular to the splicing direction by the first clamping portion and the second clamping portion, so that the overall structure of the formwork is firm, can withstand greater pressure and impact force during construction, and is not easy to deform or damage; the first clamping portion and the second clamping portion are provided to form a clamping structure, and the clamping and fixing method does not require the use of complex connection tools and tedious installation steps, which greatly improves construction efficiency; the clamping method can ensure that the connection between components is accurate, reduces errors and adjustment time during installation, and ensures construction quality. The convenient and efficient installation also reduces labor costs and construction time, and further improves economic benefits; a suitable number of extension members 2 can be selected according to actual needs to form formworks of various lengths, which avoids material waste and reduces costs.

[0044] The multi-ribbed floor formwork provided by the embodiment of the present invention has the first clamping part and the second clamping part arranged on the inner surface of the accommodating cavity, so that the clamping connection is inside the formwork, and is not easily directly impacted and damaged when subjected to external forces. When the formwork bears the pressure of the floor concrete and various external forces during the construction process, the clamping part can maintain the connection state more stably, ensuring the firmness of the overall structure of the formwork; during installation, the splicing position of the side module 1 and the extension part 2 can be clearly seen from the outside, which is convenient for workers to perform accurate positioning and splicing operations; at the same time, since the clamping part is not exposed, the possibility of clamping failure due to external collision during installation is also reduced; the inner surface clamping does not affect the flatness of the outer surface of the formwork, so that the bottom surface of the floor is smoother after pouring concrete, reducing the surface treatment work required in the later stage and improving the construction quality.

[0045] Furthermore, the first clamping portion is a male or female port formed by extending along the inner surface of the edge module 1 or the extension piece 2 toward the accommodating cavity, and the second clamping portion is a female or male port formed by extending along the inner surface of the edge module 1 or the extension piece 2 toward the accommodating cavity.

[0046] It's easy to understand that the matching design of the male and female connectors provides excellent connection strength and stability. During the concrete pouring process, the formwork needs to withstand the pressure and vibration of the concrete. This tight splicing method can effectively prevent the formwork from deformation and displacement, ensuring the structural integrity of the floor.

[0047] It should be noted that, for ease of installation and production, a multi-ribbed floor formwork consisting of two side modules 1 and an extension 2 is used as an example. Each side module 1 has one splicing location, while an extension 2 has two splicing locations. The splicing locations of the two side modules 1 are set to different male or female ports, while the two splicing locations of the extension 2 are respectively provided with male and female ports. This arrangement provides clear directionality and positioning during the installation process. It avoids installation errors, ensures accurate splicing of the formwork, improves construction quality, and enhances the uniformity of the extension 2 set in the middle. If the two side modules 1 are set to the same male or female port, it will be necessary to set the same male or female port on both sides of the extension 2. During actual construction, workers will need to spend more time judging and trying the correct splicing method during installation. This not only reduces construction efficiency, but also makes installation errors more likely to occur, affecting the overall quality of the floor. In addition, to ensure that different components are not confused during transportation, the side modules 1 and extension 2 need to be more carefully classified and marked. This not only increases the preparation work before transportation, but also takes up more storage space and transportation resources.

[0048] Furthermore, the female port is a snap-fit ​​groove 3 extending to the position of the male port, and the male port is a snap-fit ​​part 4 extending along the edge of the side module 1 or the extension part 2 toward the accommodating cavity, and the snap-fit ​​part 4 is suitable for being snapped into the snap-fit ​​groove 3.

[0049] As can be easily understood, this arrangement makes the splicing of the side module 1 and the extension member 2 extremely easy. During installation, the connection is completed by simply inserting the male port (clip 4) into the female port (clip slot 3), eliminating the need for complex tools and equipment, greatly improving construction efficiency. The design of the clip 4 and the clip slot 3 provides a certain degree of guidance, which can help workers quickly and accurately perform splicing and reduce the occurrence of installation errors. Furthermore, the opening of the clip slot 3 extends below the adjacent extension member 2, and the clip 4 can be extended vertically downward, making it easy to disassemble and assemble.

[0050] Furthermore, the snap-in groove 3 includes a support portion 31, a connecting portion 32 and a clamping portion 33 which are connected in sequence and integrally formed with the side module 1 or the extension member 2, and the support portion 31 is an inclined support; an arc-shaped transition surface is provided at the connection between the snap-in member 4 and the extension member 2 or the side module 1.

[0051] It should be noted that the support portion 31 is an inclined support, which can provide a gradual guiding effect when the clip 4 is inserted into the clip groove 3, making the clipping process smoother, and also increasing the stability after the clipping. The inclined support can withstand forces from different directions, effectively preventing the clip 4 from loosening or falling out during use, and increasing the connection area with the side mold and the extension body, ensuring reliability. The connecting portion 32 serves to connect the support portion 31 and the clamping portion 33, ensuring the structural integrity of the entire clip groove 3, and can transmit force and disperse stress, so that the clip groove 3 will not be easily deformed or damaged when subjected to external force. The clamping portion 33 can tightly clamp the clip 4, further enhancing the firmness of the connection, and closely cooperate with the clip 4 to prevent gaps or separation in the mold shell during use.

[0052] In another optional embodiment, a stepped structure can be used instead of the sequentially connected support portion 31, connection portion 32, and clamping portion 33. Two or three steps of different heights can be provided so that the clip 4 is gradually clamped when inserted. A chamfered transition surface can also be provided at the connection between the clip 4 and the extension member 2 or the side mold 1. The chamfer can be at different angles, such as 30 degrees or 45 degrees, to facilitate the insertion of the clip 4 into the clip groove 3. The stepped structure is more secure when clamped and can withstand greater external forces. The chamfered transition surface is also smoother during insertion, reducing jamming.

[0053] In another alternative embodiment, the engaging groove 3 can be designed as a curved hook-shaped structure, similar to the shape of a hook. The inner side of the hook can be divided into a guide section and a clamping section. The guide section is relatively spacious, facilitating the entry of the engaging member 4; the clamping section is relatively narrow, firmly securing the engaging member 4. The end of the engaging member 4 is designed to be spherical or elliptical to match the hook structure. The combination of the hook structure and the spherical engaging member 4 provides a strong fixing force in all directions, preventing loosening.

[0054] Furthermore, the side mold 1 and the extension 2 both include a top mold plate arranged at the top and a side mold plate arranged at the side. The side mold plate is arranged inclined relative to the top mold plate. After the side mold 1 and the extension 2 are spliced, a frustum structure with an accommodating cavity is formed.

[0055] It should be noted that compared to traditional straight-tube structures, the frustum structure can better distribute vertical pressure to the side formwork. Because the side formwork is tilted, it can provide a larger support area, thereby enhancing the load-bearing capacity of the entire formwork and reducing the risk of deformation and damage.

[0056] Furthermore, the first clamping portion and the second clamping portion are arranged at the splicing position of the side module 1 and the extension member 2 located on the top template, and the splicing position of the side module 1 and the extension member 2 located on the side template is also provided with a locking structure, which is suitable for achieving a fixed connection between the side module 1 and the extension member 2.

[0057] It should be noted that a locking structure is provided at the side formwork splicing position of the side formwork 1 and the extension 2, which cooperates with the first clamping portion and the second clamping portion at the top formwork splicing position to form a full-range connection and fixing system. This ensures that the formwork has sufficient stability in all directions, can withstand various pressures and impact forces during the concrete pouring process, and prevents the formwork from deformation or displacement. The locking structure can also effectively prevent gaps from appearing at the side formwork splicing position, avoiding concrete leakage from the gaps during the pouring process. This not only ensures the quality and appearance of the floor slab, but also reduces the subsequent repair work and improves construction efficiency.

[0058] Furthermore, a plurality of locking structures are provided.

[0059] Furthermore, the locking structure includes a plurality of locking holes 5, which are arranged at the joint position of the side template at the side template 1 and the extension 2; and also includes a locking bolt and a locking nut, when the locking bolt passes through the locking hole 5 and is threadedly connected with the locking nut.

[0060] As is easy to understand, the locking bolt and locking nut are common standard components and are relatively inexpensive. Furthermore, this locking structure is simple to manufacture and inexpensive, reducing the overall project cost. The locking structure is reusable, further reducing costs and improving economic practicality. If slight deviations are detected during installation between the side module 1 and the extension 2, fine-tuning can be performed by adjusting the position of the locking bolt in the locking hole 5 to ensure a correct connection.

[0061] In another alternative embodiment, the locking mechanism may be a latch-type locking mechanism. Corresponding sockets are provided on the side panels of the side mold 1 and the extension 2, and latches are inserted into the sockets to achieve securement. The specific form of the locking mechanism is not limited here; any mechanism that provides stable securement is sufficient.

[0062] Furthermore, it also includes a connecting plate 6, which is arranged on the top template. The connecting plate 6 fully covers at least one extension member 2 and at least partially covers the side template 1. The connecting plate 6 is detachably connected to the top template.

[0063] As will be readily understood, the connecting plate 6 fully covers at least one extension member 2 and at least partially covers the side form member 1, thereby connecting the side form member 1 and the extension member 2 into a single unit and enhancing the structural integrity of the formwork. During the concrete pouring process, the connecting plate 6 effectively distributes the concrete pressure, reduces localized stress concentration, and prevents deformation or damage to the formwork.

[0064] Furthermore, a through hole is provided on the top template, and a threaded hole is correspondingly provided on the connecting plate 6; a fixing screw is also included, and the fixing screw passes through the through hole and is detachably connected to the threaded hole.

[0065] Furthermore, the material of the ribbed floor formwork is polypropylene ribbed floor formwork.

[0066] It should be noted that polypropylene multi-ribbed floor formwork is lighter than traditional steel or concrete formwork. This makes transportation and installation more convenient, reducing transportation costs and construction difficulties. Workers can more easily carry and install the formwork, improving construction efficiency.

[0067] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A ribbed floor formwork, characterized in that: include: Two side moldings (1); at least one extension piece (2), the extension piece (2) being arranged between the two side mold pieces (1), and the side mold pieces (1) and the extension piece (2) being spliced ​​together to form a hollow structure having a receiving cavity; The first clamping portion and the second clamping portion are arranged at the splicing position of the side module (1) and the extension member (2), and are both arranged on the inner surface facing the accommodating cavity. The first clamping portion and the second clamping portion are clamped and fixed to each other in a direction that is both parallel and perpendicular to the splicing direction of the side module (1) and the extension member (2).

2. The ribbed floor formwork according to claim 1, characterized in that: The first clamping portion is a male or female port formed along the inner surface of the side mold (1) or the extension piece (2) extending toward the accommodating cavity, and the second clamping portion is a female or male port formed along the inner surface of the side mold (1) or the extension piece (2) extending toward the accommodating cavity.

3. The ribbed floor formwork according to claim 2, characterized in that: The female port is a snap-fitting groove (3) extending from its opening to the position of the male port, and the male port is a snap-fitting part (4) extending along the edge of the side mold (1) or the extension part (2) toward the accommodating cavity, and the snap-fitting part (4) is suitable for snapping into the snap-fitting groove (3).

4. The ribbed floor formwork according to claim 3, characterized in that: The clamping groove (3) comprises a supporting portion (31), a connecting portion (32) and a clamping portion (33) which are connected in sequence and integrally formed with the side mold (1) or the extension member (2); the supporting portion (31) is an inclined support; and an arc-shaped transition surface is provided at the connection between the clamping member (4) and the extension member (2) or the side mold (1).

5. The ribbed floor formwork according to any one of claims 1 to 4, characterized in that: The side mold (1) and the extension (2) both comprise a top mold plate arranged at the top and a side mold plate arranged at the side, wherein the side mold plate is arranged obliquely to the top mold plate. The side mold (1) and the extension (2) are spliced ​​together to form a frustum structure having an accommodating cavity.

6. The ribbed floor formwork according to claim 5, characterized in that: The first clamping portion and the second clamping portion are arranged at the splicing position of the side mold (1) and the extension member (2) located on the top mold plate, and the splicing position of the side mold (1) and the extension member (2) located on the side mold plate is also provided with a locking structure, and the locking structure is suitable for achieving a fixed connection between the side mold (1) and the extension member (2).

7. The ribbed floor formwork according to claim 6, characterized in that: A plurality of locking structures are provided.

8. The ribbed floor formwork according to claim 7, characterized in that: The locking structure comprises a plurality of locking holes (5), wherein the locking holes (5) are arranged at the joint position of the side formwork at the side formwork (1) and the extension member (2); and further comprises a locking bolt and a locking nut, wherein the locking bolt passes through the locking hole (5) and is threadedly connected to the locking nut.

9. The ribbed floor formwork according to claim 5, characterized in that: It also includes a connecting plate (6), which is arranged on the top template, and the connecting plate (6) fully covers at least one of the extension members (2) and at least partially covers the side template (1), and the connecting plate (6) is detachably connected to the top template.

10. The ribbed floor formwork according to claim 9, characterized in that: The top template is provided with a through hole, and the connecting plate (6) is provided with a corresponding threaded hole; a fixing screw is also included, and the fixing screw passes through the through hole and is detachably connected to the threaded hole.

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