Ribbed floor slab formwork

Abstract

The present application relates to the technical field of assembling ribbed floor slabs, and discloses a ribbed floor slab formwork, comprising: two edge formwork members; at least one extension member, the extension member being arranged between the two edge formwork members, and the edge formwork members and the extension member being assembled to form a hollow structure having an accommodating cavity; and first snap-fit portions and second snap-fit portions, which are arranged at assembly positions of the edge formwork members and the extension member and are arranged on inner surfaces facing the accommodating cavity, the first snap-fit portions and the second snap-fit portions being snap-fitted and fixed to each other in directions parallel to and perpendicular to an assembly direction of the edge formwork members and the extension member. For the ribbed floor slab formwork provided in the present application, the first snap-fit portions and the second snap-fit portions are snap-fitted and fixed to each other in the directions parallel to and perpendicular to the assembly direction, so that the overall structure of the formwork is firm, thereby withstanding large pressure and impact force during construction and being less prone to deformation and damage, and the snap-fit fixing mode does not require the use of complex connecting tools and cumbersome installation steps, thereby greatly improving the construction efficiency.

Description

A type of dense ribbed floor slab mold

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411409060.9, filed on October 10, 2024, entitled “A Ribbed Floor Slab Mold Shell”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of ribbed floor slab assembly technology, specifically to a ribbed floor slab mold shell. Background Technology

[0004] In the construction process of traditional ribbed floor slab formwork, the rib lines are first laid out, then the formwork is laid out along the positioning lines and fixed to the bottom formwork with nails. However, most formwork currently used are standard formwork of the same specification, which cannot be used for corners or structural parts involving irregular inclined beams.

[0005] Ribbed floor slabs typically have complex geometries and structural requirements. Different building projects have varying needs in terms of floor span, load, and spatial layout. The column grid may include irregular grids such as sloping beams, making it difficult to form square edges on the ribbed slab. Sloping grid areas are common, with edges often being narrow, elongated regions of varying widths. Regularly shaped formwork is difficult to fit these edges. Typically, formwork is not used in these areas; concrete is poured directly to make them solid. However, this method increases the self-weight of the ribbed slab, complicates construction, and leads to unclear stress distribution in the solid areas of the edge structure. It also presents challenges for the pre-embedding of reinforcing steel bars during construction.

[0006] To address this, a solution of setting a widening strip between the two mold shells is proposed. The number of widening strips can be set as needed. However, the mold shells and widening strips are connected sequentially by flat rods, which is inconvenient for assembly and disassembly, affecting construction efficiency. Another solution is to use a snap-fit ​​method to connect the various parts, but this requires tongue and groove joints at the snap-fit ​​points, increasing processing steps and affecting construction efficiency. Summary of the Invention

[0007] In view of this, this application provides a ribbed floor slab formwork to solve the problems of inconvenient assembly and disassembly and low construction efficiency of existing formwork.

[0008] This application provides a ribbed floor slab formwork, comprising:

[0009] Two side molds;

[0010] At least one extension member is provided, which is disposed between the two side mold members, and the side mold members and the extension member are spliced ​​together to form a hollow structure with a receiving cavity;

[0011] The first and second snap-fit ​​parts are disposed at the splicing position of the side mold and the extension, and are both disposed on the inner surface facing the receiving cavity. The first and second snap-fit ​​parts are snap-fitted and fixed to each other simultaneously in a direction parallel to and perpendicular to the splicing direction of the side mold and the extension.

[0012] Optionally, the first snap-fit ​​portion is a male or female opening extending along the inner surface of the side mold or the extension member toward the receiving cavity, and the second snap-fit ​​portion is a female or male opening extending along the inner surface of the side mold or the extension member toward the receiving cavity.

[0013] Optionally, the female opening is a snap-fit ​​groove extending to the location of the male opening, and the male opening is a snap-fit ​​member extending along the edge of the side mold or the extension member toward the receiving cavity, the snap-fit ​​member being adapted to snap into the snap-fit ​​groove.

[0014] Optionally, the snap-fit ​​groove includes a support portion, a connecting portion, and a clamping portion that are integrally formed with the edge mold or the extension member in sequence, wherein the support portion is an inclined support; and the connection between the snap-fit ​​member and the extension member or the edge mold member is provided with an arc-shaped transition surface.

[0015] Optionally, both the side mold and the extension include a top mold at the top and a side mold at the side, with the side mold inclined to the top mold. The side mold and the extension are spliced ​​together to form a frustum-shaped structure with a receiving cavity.

[0016] Optionally, the first snap-fit ​​portion and the second snap-fit ​​portion are disposed at the splicing position of the side mold and the extension member on the top template. The splicing position of the side mold and the extension member on the side template is also provided with a locking structure, which is adapted to realize the fixed connection between the side mold and the extension member.

[0017] Optionally, multiple locking structures are provided.

[0018] Optionally, the locking structure includes multiple locking holes located at the splicing position of the side template and the extension member; it also includes a locking bolt and a locking nut, wherein the locking bolt passes through the locking hole and is threadedly connected to the locking nut.

[0019] Optionally, it also includes a connecting plate disposed on the top template, the connecting plate fully covering at least one of the extension members and at least partially covering the side template members, and the connecting plate being detachably connected to the top template.

[0020] Optionally, the top template has a through hole, and the connecting plate has a corresponding threaded hole; it also includes a fixing screw, which passes through the through hole and is detachably connected to the threaded hole. Beneficial effects

[0021] The ribbed floor slab formwork provided in this application includes two side formworks; at least one extension member, which is disposed between the two side formworks, and the side formworks and the extension member are spliced ​​together to form a hollow structure with a receiving cavity; a first locking part and a second locking part are disposed at the splicing position of the side formworks and the extension member, and are both disposed on the inner surface facing the receiving cavity, and the first locking part and the second locking part are locked together and fixed to each other in a direction that is parallel to and perpendicular to the splicing direction of the side formworks and the extension member.

[0022] The ribbed floor slab formwork of this structure is a hollow structure formed by splicing side formwork components and at least one extension component. It is fixed to the formwork by interlocking with a first and a second interlocking part in parallel and perpendicular directions, ensuring a robust overall structure that can withstand significant pressure and impact during construction, and is resistant to deformation and damage. The interlocking structure, formed by the first and second interlocking parts, eliminates the need for complex connecting tools and cumbersome installation steps, greatly improving construction efficiency. The interlocking method ensures accurate connections between components, reducing errors and adjustment time during installation, guaranteeing construction quality. Its convenient and efficient installation also reduces labor costs and construction time, further improving economic benefits. The ability to select an appropriate number of extension components to form formwork of various lengths avoids material waste and reduces costs.

[0023] The ribbed floor slab formwork of this structure places the first and second locking parts on the inner surface of the receiving cavity. The locking design on the inner surface ensures that the locking parts are not easily impacted or damaged by external forces. When the formwork is subjected to the pressure of the floor slab concrete and various external forces during construction, the locking parts can maintain a more stable connection, ensuring the overall structural integrity of the formwork. During installation, the splicing positions of the side formwork and extension parts can be clearly seen from the outside, facilitating accurate positioning and splicing operations for workers. At the same time, since the locking parts are not exposed, the possibility of locking failure due to external collisions during installation is reduced. The inner surface locking does not affect the flatness of the outer surface of the formwork, resulting in a smoother and flatter bottom surface of the floor slab after concrete pouring, reducing the need for subsequent surface treatment work and improving construction quality. Furthermore, it eliminates the need for additional connection structures such as tongue and groove joints, resulting in high processing efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 is a front view of a ribbed floor slab mold according to an embodiment of this application;

[0026] Figure 2 is a top view of the ribbed floor slab mold shell according to an embodiment of this application;

[0027] Figure 3 is a schematic diagram of the cross-section of AA in Figure 2;

[0028] Figure 4 is an enlarged view of point A in Figure 3;

[0029] Figure 5 is a schematic diagram of the cross section along BB in Figure 2.

[0030] Explanation of reference numerals in the attached drawings: 1. Side module; 2. Extension; 3. Snap-fit ​​groove; 31. Support part; 32. Connecting part; 33. Clamping part; 4. Snap-fit ​​part; 5. Locking hole; 6. Connecting plate. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] The embodiments of this application are described below with reference to Figures 1 to 5.

[0033] A ribbed floor slab formwork, comprising:

[0034] Two side modules 1;

[0035] At least one extension member 2 is provided between two side mold members 1. The side mold members 1 and the extension member 2 are spliced ​​together to form a hollow structure with a receiving cavity.

[0036] The first and second snap-fit ​​parts are located at the splicing position of the side mold 1 and the extension 2, and are both located on the inner surface facing the receiving cavity. The first and second snap-fit ​​parts are snap-fitted and fixed to each other in a direction that is parallel to and perpendicular to the splicing direction of the side mold 1 and the extension 2.

[0037] It is easy to understand that the number of extension pieces 2 can be determined according to 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, and the number of extension pieces 2 needs to be reasonably determined according to the actual space conditions. In this embodiment, the number of extension pieces 2 is selected as 2. In other embodiments, 1, 3 or more can also be selected, and there is no limitation on the number here.

[0038] In a straightforward manner, the main structures of the two side modules 1 are symmetrically mirrored, allowing the side modules 1 to use the same production process and molds, which greatly reduces production costs and time. Furthermore, the mirrored side modules 1 are easier to identify and position during installation, enabling workers to quickly and accurately assemble and install them, 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 a replacement part for replacement, reducing maintenance costs and time.

[0039] It should be noted that the first and second locking parts are locked together and fixed in a manner that is both parallel to and perpendicular to the splicing direction of the side formwork 1 and the extension 2. The parallel locking effectively prevents relative sliding between the side formwork 1 and the extension 2 after splicing. When the formwork is subjected to pressure from the concrete above and various horizontal forces during construction, the parallel locking ensures a tight connection between the components, preventing misalignment or separation, thus guaranteeing the overall structural stability of the floor slab. The vertical locking resists vertical tension and pressure. During concrete pouring, the formwork needs to withstand the weight of the concrete and potential upward buoyancy, etc., in the vertical direction. The vertical locking firmly connects the side formwork 1 and the extension 2, preventing deformation or separation of the formwork in the vertical direction, further improving the load-bearing capacity and safety of the floor slab.

[0040] This embodiment provides a first and a second snap-fit ​​part. During installation, the parallel and perpendicular snap-fit ​​design makes the splicing operation of the side formwork 1 and the extension 2 simpler and faster. Workers only need to assemble the various components in the correct direction, and the snap-fit ​​structure will automatically fix them, without the need for complex connection tools and techniques, greatly reducing construction difficulty and cost; during disassembly, this snap-fit ​​fixing method is also easy to disassemble. Because the snap-fit ​​structure design is relatively simple, the side formwork 1 and the extension 2 can be easily separated with appropriate tools or methods without causing excessive damage to the floor structure, facilitating the reuse and recycling of the formwork.

[0041] In another alternative embodiment, a diagonal snap-fit ​​structure can be provided at the joint 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, respectively. When joined, the protrusion snaps into the groove to achieve a snap-fit ​​fixation. This design can provide fixing force in two diagonal directions on the horizontal plane, enhancing the stability of the mold shell.

[0042] In another alternative embodiment, a rotational snap-fit ​​method can be used at the joint between the side mold 1 and the extension 2. A columnar structure with a snap-fit ​​can be provided on the side mold 1, and a corresponding rotatable snap-fit ​​component can be provided on the extension 2. During installation, the component of the extension 2 is rotated and snapped into the snap-fit ​​of the side mold 1 to achieve fixation.

[0043] The ribbed floor slab formwork provided in this application embodiment is a hollow structure formed by splicing side formwork 1 and at least one extension 2. It is fixed by interlocking with a first and a second interlocking part in parallel and perpendicular directions, making the overall formwork structure robust and able to withstand significant pressure and impact during construction, preventing deformation and damage. The first and second interlocking parts form an interlocking structure, eliminating the need for complex connecting tools and cumbersome installation steps, greatly improving construction efficiency. The interlocking method ensures accurate connections between components, reducing errors and adjustment time during installation, guaranteeing construction quality. Its convenient and efficient installation also reduces labor costs and construction time, further improving economic benefits. The appropriate number of extensions 2 can be selected to form formwork of various lengths, avoiding material waste and reducing costs.

[0044] The ribbed floor slab formwork provided in this application embodiment has the first and second snap-fit ​​parts located on the inner surface of the receiving cavity, so that the snap-fit ​​connection is inside the formwork. When subjected to external forces, it is not easily directly impacted or damaged. When the formwork bears the pressure of the floor slab concrete and various external forces during construction, the snap-fit ​​parts can maintain the connection state more stably, ensuring the overall structural integrity of the formwork. During installation, the splicing position of the side formwork 1 and the extension 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 snap-fit ​​parts are not exposed, the possibility of snap-fit ​​failure due to external collisions during installation is reduced. The inner surface snap-fit ​​does not affect the flatness of the outer surface of the formwork, making the bottom surface of the floor slab smoother after the concrete is poured, reducing the surface treatment work required later and improving the construction quality.

[0045] Optionally, the first snap-fit ​​portion is a male or female opening formed by extending the inner surface of the edge mold 1 or the extension 2 toward the receiving cavity, and the second snap-fit ​​portion is a female or male opening formed by extending the inner surface of the edge mold 1 or the extension 2 toward the receiving cavity.

[0046] It is easy to understand that the mating design of the male and female joints provides good 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 deforming and shifting, ensuring the structural integrity of the floor slab.

[0047] It should be noted that, for ease of installation and production, this example uses a ribbed floor slab formwork consisting of two side formwork pieces 1 and one extension piece 2. Each side formwork piece 1 has one splicing position, while each extension piece 2 has two splicing positions. The splicing positions of the two side formwork pieces 1 are set with different male or female joints, while the two splicing positions of the extension piece 2 are respectively set with male and female joints. This arrangement provides clear directionality and positioning during installation. It avoids installation errors, ensures accurate splicing of the formwork, improves construction quality, and enhances the uniformity of the extension piece 2 located in the middle. If the two side formwork pieces 1 are set with the same male or female joint, then both sides of the extension piece 2 would also need to be set with the same male or female joint. In actual construction, workers would need to spend more time judging and trying the correct splicing method, which not only reduces construction efficiency but also easily leads to installation errors, affecting the overall quality of the floor slab. Moreover, to ensure that different components are not confused during transportation, the side formwork pieces 1 and the extension piece 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] Optionally, the female opening is a snap-fit ​​groove 3 that extends to the location of the male opening, and the male opening is a snap-fit ​​member 4 that extends along the edge of the edge mold 1 or the extension member 2 toward the receiving cavity, and the snap-fit ​​member 4 is adapted to snap into the snap-fit ​​groove 3.

[0049] This design makes the splicing of the side module 1 and the extension 2 very easy to understand. During installation, the male connector (clamping piece 4) is simply inserted into the female connector (clamping groove 3) to complete the connection, eliminating the need for complex tools and equipment and greatly improving construction efficiency. The design of the clamping piece 4 and the clamping groove 3 provides a certain degree of guidance, helping workers to splice quickly and accurately, reducing installation errors. Furthermore, the opening of the clamping groove 3 extends to the bottom of the adjacent extension 2, and the clamping piece 4 extends vertically downwards, facilitating assembly and disassembly.

[0050] Optionally, the snap-fit ​​groove 3 includes a support part 31, a connecting part 32 and a clamping part 33 that are integrally formed with the edge mold 1 or the extension part 2 in sequence, wherein the support part 31 is an inclined support; the snap-fit ​​part 4 is provided with an arc-shaped transition surface at the connection between it and the extension part 2 or the edge mold 1.

[0051] It should be noted that the support part 31 is a sloping support, which provides a gradual guiding effect when the snap-fit ​​part 4 is inserted into the snap-fit ​​groove 3, making the snap-fit ​​process smoother and increasing the stability after snap-fit. The sloping support can withstand forces from different directions, effectively preventing the snap-fit ​​part 4 from loosening or falling out during use, and increasing the connection area with the side mold part and the main body of the extension part, ensuring reliability. The connecting part 32 connects the support part 31 and the clamping part 33, ensuring the structural integrity of the entire snap-fit ​​groove 3, transmitting force and dispersing stress, so that the snap-fit ​​groove 3 will not easily deform or be damaged when subjected to external forces. The clamping part 33 can tightly clamp the snap-fit ​​part 4, further enhancing the connection firmness, and fits tightly with the snap-fit ​​part 4 to prevent gaps or separation from the mold shell during use.

[0052] In another alternative embodiment, a stepped structure can be used instead of the sequentially connected support 31, connecting part 32, and clamping part 33. Two or three steps of different heights can be provided, gradually clamping as the snap-fit ​​4 is inserted. A chamfered transition surface can also be provided at the connection between the snap-fit ​​4 and the extension 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 snap-fit ​​4 into the snap-fit ​​groove 3. The stepped structure is more secure when clamped and can withstand greater external force. The chamfered transition surface also makes insertion smoother, reducing jamming.

[0053] In another alternative embodiment, the snap-fit ​​groove 3 can be configured 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 locking section. The guide section is relatively spacious to facilitate the insertion of the snap-fit ​​member 4; the locking section is relatively narrow to firmly lock the snap-fit ​​member 4. The end of the snap-fit ​​member 4 is designed as a spherical or elliptical shape to match the hook-shaped structure. The cooperation between the hook-shaped structure and the spherical snap-fit ​​member 4 provides good fixing force in all directions to prevent loosening.

[0054] Optionally, both the side mold 1 and the extension 2 include a top mold plate disposed on the upper part and a side mold plate disposed on the side. The side mold plate is inclined to the top mold plate. After the side mold 1 and the extension 2 are spliced ​​together, they form a frustum structure with a receiving cavity.

[0055] It should be noted that, compared to traditional cylindrical structures, the frustum structure can better distribute pressure to the side templates when subjected to vertical pressure. Due to the inclined design of the side templates, a larger support area is provided, thereby enhancing the overall load-bearing capacity of the mold shell and reducing the risk of deformation and damage.

[0056] Optionally, the first snap-fit ​​part and the second snap-fit ​​part are provided at the splicing position of the side mold 1 and the extension 2 on the top template. The side mold 1 and the extension 2 at the splicing position on the side template are also provided with a locking structure, which is suitable for realizing the fixed connection between the side mold 1 and the extension 2.

[0057] It should be noted that a locking structure is installed at the joint of the side formwork of the side formwork 1 and the extension 2. This structure cooperates with the first and second locking parts at the joint of the top formwork to form a comprehensive connection and fixing system. This ensures sufficient stability of the formwork in all directions, enabling it to withstand various pressures and impacts during concrete pouring and preventing deformation or displacement. Furthermore, the locking structure effectively prevents gaps at the joints of the side formwork, avoiding concrete leakage during pouring. This not only guarantees the quality and appearance of the floor slab but also reduces subsequent repair work and improves construction efficiency.

[0058] Furthermore, multiple locking structures are provided.

[0059] Furthermore, the locking structure includes multiple locking holes 5, which are located at the splicing position of the side template 1 and the extension 2; it also includes locking bolts and locking nuts, which are threadedly connected to the locking nuts when the locking bolts pass through the locking holes 5.

[0060] It's easy to understand that locking bolts and locking nuts are common standard parts with relatively low prices. Furthermore, the manufacturing process of this locking structure is simple and inexpensive, reducing the overall cost of the project. The locking structure is reusable, further reducing costs and enhancing economic practicality. If a slight deviation is found in the splicing position of the side mold 1 and the extension 2 during installation, it can be fine-tuned by adjusting the position of the locking bolt in the locking hole 5 to ensure accurate splicing.

[0061] In another alternative embodiment, a pin-type locking structure can be used. Corresponding insertion holes are provided on the side templates of the side mold 1 and the extension 2, and a pin is inserted into the insertion holes to achieve fixation. Here, the specific form of the locking structure is not limited; any stable fixation is sufficient.

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

[0063] In a straightforward manner, the connecting plate 6 fully covers at least one extension member 2 and at least partially covers the side formwork member 1, thereby connecting the side formwork member 1 and the extension member 2 into a single unit and enhancing the structural integrity of the formwork shell. During concrete pouring, the connecting plate 6 can effectively distribute the pressure of the concrete, reduce local stress concentration, and prevent deformation or damage to the formwork shell.

[0064] Optionally, the top template has a through hole, and the connecting plate 6 has a corresponding threaded hole; it also includes a fixing screw, which is detachably connected through the through hole and the threaded hole.

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

[0066] It should be noted that polypropylene ribbed floor slab formwork is lighter than traditional steel or concrete formwork. This makes it easier to transport and install, reducing transportation costs and construction difficulty. Workers can more easily handle and install the formwork, improving construction efficiency.

[0067] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A multi-rib floor deck form, characterized by, include: Two side modules (1); At least one extension member (2) is provided between two side mold members (1), and the side mold members (1) and the extension member (2) are spliced ​​together to form a hollow structure with a receiving cavity; The first and second snap-fit ​​parts are disposed at the splicing position of the side mold (1) and the extension (2), and are both disposed on the inner surface facing the receiving cavity. The first and second snap-fit ​​parts are snap-fitted and fixed to each other in a direction that is parallel to and perpendicular to the splicing direction of the side mold (1) and the extension (2).

2. The ribbed floor slab mold shell according to claim 1, characterized in that, The first snap-fit ​​portion is a male or female opening formed by extending along the inner surface of the side mold (1) or the extension member (2) toward the receiving cavity, and the second snap-fit ​​portion is a female or male opening formed by extending along the inner surface of the side mold (1) or the extension member (2) toward the receiving cavity.

3. The ribbed floor slab mold shell according to claim 2, characterized in that, The female opening is a snap-fit ​​groove (3) extending to the location of the male opening, and the male opening is a snap-fit ​​member (4) extending along the edge of the side mold (1) or the extension member (2) toward the receiving cavity, and the snap-fit ​​member (4) is adapted to snap into the snap-fit ​​groove (3).

4. The ribbed floor slab mold shell according to claim 3, characterized in that, The snap-fit ​​groove (3) includes a support part (31), a connecting part (32) and a clamping part (33) that are integrally formed with the side mold (1) or the extension part (2) in sequence. The support part (31) is a sloping support. The snap-fit ​​part (4) is provided with an arc-shaped transition surface at the connection between it and the extension part (2) or the side mold (1).

5. The ribbed floor slab mold shell according to any one of claims 1-4, characterized in that, Both the side module (1) and the extension (2) include a top template disposed on the upper part and a side template disposed on the side. The side template is inclined to the top template. After the side module (1) and the extension (2) are spliced ​​together, they form a frustum structure with a receiving cavity.

6. The ribbed floor slab mold shell according to claim 5, characterized in that, The first snap-fit ​​part and the second snap-fit ​​part are disposed at the splicing position of the side module (1) and the extension part (2) on the top template. The side module (1) and the extension part (2) are also provided with a locking structure at the splicing position of the side template. The locking structure is suitable for realizing the fixed connection between the side module (1) and the extension part (2).

7. The ribbed floor slab mold shell according to claim 6, characterized in that, Multiple locking structures are provided.

8. The ribbed floor slab mold shell according to claim 7, characterized in that, The locking structure includes multiple locking holes (5), which are located at the splicing position of the side template on the side template (1) and the extension (2); it also includes locking bolts and locking nuts, which are threadedly connected to the locking nuts when the locking bolts pass through the locking holes (5).

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

10. The ribbed floor slab mold shell according to claim 9, characterized in that, The top template has a through hole, and the connecting plate (6) has a corresponding threaded hole; it also includes a fixing screw, which passes through the through hole and is detachably connected to the threaded hole.

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