Aluminum formwork bottom corner forming structure for building construction

Abstract

The utility model provides a kind of aluminium formwork bottom corner forming structure for building construction, it is related to building construction technical field, including corner shell, corner shell overall is L-shaped, and the side towards wall body is set as hollow part;Corner shell includes arched surface, bottom surface and the connecting surface at both ends, arched surface, bottom surface and both ends connecting surface are collectively enclosed to form hollow part;Multiple communication holes are set on bottom surface, and the bottom side of bottom surface is provided with flow channel along its length direction;Connecting surface is provided with connecting hole;Among them, the top end of arched surface is protruding to the side of wall surface relative to both ends connecting surface, and its section is smoothly hook-shaped extension setting.The utility model can be designed once forming R angle by prefabricated aluminium formwork structure, and improve construction efficiency and forming quality.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and more specifically, to a bottom corner forming structure for aluminum formwork used in building construction. Background Technology

[0002] During construction, especially in small, complex spaces such as bathrooms, the bottom corners of the suspended formwork often need to be rounded (R-angle) to avoid cracks caused by stress concentration at right angles, and also to facilitate the subsequent construction of waterproof and finishing layers.

[0003] In related technologies, a common approach is to manually round the corners after the concrete has been poured. However, this method suffers from low construction efficiency and inconsistent finishing quality. Because manual plastering is highly dependent on the skill level of the workers, the curvature and dimensions of the rounded corners produced by different workers are difficult to maintain consistently, easily resulting in irregular or significantly deviated rounded corners, thus affecting the overall appearance and functionality. Furthermore, there is a risk of insufficient bonding between the plaster material and the concrete substrate, which may lead to cracking or detachment during use, reducing the durability of the project. Utility Model Content

[0004] The purpose of this utility model is to provide an aluminum formwork bottom corner forming structure for building construction, which can be formed into the required R angle in one step through a prefabricated aluminum formwork structure, thereby improving construction efficiency and forming quality.

[0005] This utility model is achieved through the following technical solution:

[0006] A corner forming structure for aluminum formwork used in building construction includes a corner shell, wherein the corner shell is generally L-shaped and the side facing the wall is set as a hollow part;

[0007] The corner shell includes an arched surface, a bottom surface, and connecting surfaces at both ends, the arched surface, the bottom surface, and the connecting surfaces at both ends together forming the hollow portion;

[0008] The bottom surface has multiple connecting holes, and the bottom side of the bottom surface has a flow groove along its length.

[0009] A connection hole is provided on the connection surface;

[0010] The top of the arched surface protrudes from the connecting surfaces at both ends onto the wall side, and its cross-section extends in a smooth hook shape.

[0011] Furthermore, a protruding connecting part is fixedly provided at the middle corner position of the corner shell and on the bottom surface.

[0012] Furthermore, a connecting structure is provided on the bottom surface.

[0013] Furthermore, the connecting structure includes a connecting piece disposed between adjacent communicating holes. The connecting piece includes a bonding piece and raised pieces disposed on both sides of the bonding piece, and the raised pieces are provided with flow holes.

[0014] Furthermore, the tip of the raised piece is configured in a hook shape.

[0015] Furthermore, the connecting pieces between adjacent connecting holes are connected in series.

[0016] Furthermore, a support plate is vertically provided on the side of the bonding piece away from the wall.

[0017] Furthermore, the bottom surface is fixedly provided with a locking part corresponding to each of the bonding pieces. The locking part includes a locking middle end and a locking head end. One end of the locking middle end is fixedly connected to the bottom surface, and the other end is fixedly connected to the locking head end. A locking groove is opened on the side of the bonding piece away from the support plate. The locking groove can move into the locking middle end. The locking head end is used to abut against the top surface of the bonding piece.

[0018] Furthermore, the snap-fit ​​groove is flared on the side away from the support plate.

[0019] Furthermore, each of the raised pieces has at least one flow hole positioned opposite the connecting hole.

[0020] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0021] 1. This utility model designs the corner shell as an integral L-shape with a hollow section, allowing for direct filling with cement or adhesive during construction. This enables the bottom corner radius (R-angle) to be formed in one step during pouring, avoiding the complex procedures of traditional manual plastering, significantly improving construction efficiency and reducing reliance on manual experience. The prefabricated corner shell has uniform geometric dimensions and high processing precision, ensuring consistent corner radius, thus effectively improving construction quality and appearance. Simultaneously, the connecting holes and flow channels on the bottom surface not only allow the filling cement to flow with the ground concrete, enhancing the overall integrity and density of the connection, but also provide channels for air and grout to escape, reducing quality defects such as honeycomb and voids, and ensuring the durability of the structure.

[0022] 2. This utility model, through the connecting holes at both ends of the corner shell, allows for quick connection with adjacent aluminum formwork using pins or screws, achieving stable installation and precise positioning, improving the convenience of assembly and disassembly, and increasing reusability. The top of the arched surface protrudes towards the wall and extends smoothly in a hook shape, not only ensuring a tight fit with the wall and effectively preventing cement slurry leakage during pouring, but also creating a smooth and aesthetically pleasing rounded transition after demolding, reducing subsequent finishing work and balancing structural performance with decorative effect. Attached Figure Description

[0023] Figure 1 A schematic diagram of the overall structure of the bottom corner forming structure of aluminum formwork for building construction provided by this utility model;

[0024] Figure 2 for Figure 1 Enlarged view of section A;

[0025] Figure 3 This utility model aims to show exploded views of the corner shell and connecting structural components;

[0026] Figure 4 This utility model aims to show exploded views of the corner shell, locking part, and connecting structure;

[0027] Figure 5 This is a structural schematic diagram of one side of the arched surface of the corner shell, which is intended to illustrate the purpose of this utility model.

[0028] Reference numerals: 100-corner shell, 110-hollow part, 111-arched surface, 112-bottom surface, 1121-connecting hole, 1122-flow groove, 113-connecting surface, 1131-connecting hole, 200-protruding connecting part, 300-connecting structural component, 310-connecting piece, 311-fitting piece, 3111-support plate, 3112-snap slot, 312-raised piece, 3121-flow hole, 400-locking part, 410-snap middle end, 420-snap end. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] The following is for reference Figures 1-5 As shown in the illustration, and further explained with reference to specific embodiments, this embodiment provides an aluminum formwork bottom corner forming structure for building construction, including a corner shell 100. The corner shell 100 is made of aluminum formwork material. Of course, in different embodiments, the corner shell 100 can be made of other materials, which are not limited here. The corner shell 100 is generally L-shaped and forms a hollow part 110 on the side facing the wall. This hollow part 110 can be used as a prefabricated filling cavity during on-site construction to directly inject cement mortar or adhesive to achieve one-time forming of the R-corner.

[0032] The corner shell 100 is connected to the adjacent aluminum formwork plate through the connecting surfaces 113 at both ends. The connecting holes 1131 are used for fixing with pins or screws. After installation, the corner shell 100 is ensured to be tightly joined with the adjacent formwork, so that the corner shell 100 can be used as part of the formwork system to jointly bear vibration, compaction and load during pouring.

[0033] Multiple connecting holes 1121 and a flow channel 1122 along the length of the bottom side are arranged on the bottom surface 112. The cross-section of the flow channel 1122 is wedge-shaped, forming a passage with the concrete of the floor or adjacent components, so that the injected cement grout flows in the cavity and is poured through the base concrete, avoiding cold joints and delamination.

[0034] At the same time, the top of the arched surface 111 protrudes towards the wall surface relative to the connecting surface 113 and is in a smooth hook shape, which fits into the wall surface to play a guiding and grout-stopping role, reducing grout leakage during the pouring process and directly forming a beautiful arc transition, reducing the amount of subsequent repairs.

[0035] As an optional embodiment, the corner shell 100 can be pre-set with several arched surfaces 111 of different radii according to the engineering dimensions at the factory to adapt to different design requirements and further improve on-site installation efficiency and finished product consistency.

[0036] Reference Figures 1-3 As shown, a flat protruding connecting part 200 is fixedly provided at the bottom surface 112 at the middle corner position of the corner shell 100. The protruding connecting part 200 can increase the connection strength of the corner shell 100. The protruding connecting part 200 protrudes into the hollow cavity and acts as a mechanical interlocking part to form a solid bond with the filling concrete after the concrete hardens.

[0037] The flat, protruding connecting part 200 increases the contact area and the embedded structure, thereby improving the pull-out resistance of the corner shell 100 under shear and tension conditions and reducing the risk of separation caused by template removal or later use. Its structural form can be an integral die-cast rib or a welded or riveted reinforcing plate. The position and size are calculated by engineering to ensure that the fluidity of the cavity is not affected and that the interface shear force can be fully borne.

[0038] As another alternative embodiment, the protruding connection 200 may be configured with a perforated or slotted structure to allow concrete to pass through during pouring, further improving the interlocking strength and facilitating the inspection of the continuity.

[0039] Reference Figure 3 As shown, the connecting structure 300 on the bottom surface 112 is mainly composed of connecting pieces 310. These connecting pieces 310, resembling reinforcing bars, are arranged between adjacent connecting holes 1121 to enhance their bonding with the filling concrete. The connecting piece 310 includes a bonding piece 311 located on the template bonding surface and raised pieces 312 on both sides of the bonding piece 311. The raised pieces 312 have flow holes 3121, which correspond in installation position to the connecting holes 1121 on the adjacent bottom surface 112, thus forming a direct flow channel during pouring. This facilitates the flow and penetration of the grout and allows air to escape, reducing honeycombing and voids. The connecting piece 310 can be formed by stretching and stamping and pre-installed with the corner shell 100 before leaving the factory. The top of the raised piece 312 is hook-shaped, which acts as a hook after the concrete hardens, increasing pull-out resistance and preventing slippage.

[0040] As an optional embodiment, the connecting pieces 310 between adjacent connecting holes 1121 can be arranged in series to form a row of connecting units, which facilitates one-time insertion and positioning on site and reduces the time required for installation one by one.

[0041] Furthermore, a support plate 3111 is integrally welded vertically to the side of the bonding piece 311 away from the wall. This support plate 3111 acts as a vertical reinforcing member, increasing the adhesion area and mechanical interlocking effect between the connecting piece 310 and the filling concrete. The height, width, and connection form of the support plate 3111 with the bonding piece 311 are structurally designed to enable it to bear part of the shear force after the concrete hardens, disperse concentrated stress, and improve the interfacial stress state, thereby improving the overall durability and long-term stability of the corner shell 100.

[0042] In different embodiments, the support plate 3111 may be designed with teeth or flanges to improve friction, or small holes may be made on the support plate 3111 to allow concrete to pass through, ensuring that the support plate 3111 forms an integrated working performance with the concrete when the whole is under stress.

[0043] Reference Figure 4As shown, in order to facilitate the assembly and disassembly of the connecting structural component 300 at different engineering nodes as needed, in this embodiment, a locking part 400 is fixedly provided on the bottom surface 112 corresponding to each bonding piece 311. The locking part 400 includes a snap-fit ​​middle end 410 and a snap-fit ​​head end 420. One end of the snap-fit ​​middle end 410 is fixed to the bottom surface 112, and the other end is movably or fixedly connected to the snap-fit ​​head end 420.

[0044] A snap-fit ​​groove 3112 is provided on the side of the fitting piece 311 away from the support plate 3111. The snap-fit ​​groove 3112 can be moved into the snap-fit ​​middle end 410 and locked by the snap-fit ​​end 420 abutting against the top surface of the fitting piece 311. The snap-fit ​​groove 3112 is flared on the side away from the support plate 3111 to provide guidance and elastic deformation space during insertion or removal, so that the installation process can realize convenient operation of "insertion-rotation-locking" or "sliding in-locking", thus completing the quick positioning and disassembly of the connecting structure 300 without complicated tools. The structural arrangement of the locking part 400 also takes into account not blocking the openings of the connecting hole 1121 and the flow hole 3121, ensuring that a good slurry flow path is maintained in the locked state.

[0045] As an alternative embodiment, the locking part 400 may also be designed as a detachable pin or a resettable fastener to meet the needs of reuse and field maintenance.

[0046] Furthermore, to ensure that the cement inside the cavity can smoothly connect to the outdoor or ground concrete through the flow holes 3121 on the raised plate 312 and the connecting holes 1121 on the bottom surface 112, and to avoid local blockage, each raised plate 312 is provided with at least one flow hole 3121 directly opposite the connecting hole 1121 below, and the area and number of the flow holes 3121 are proportioned to the size of the connecting holes 1121 according to the rheological properties and pouring process requirements. This alignment design ensures that the grout can directly penetrate from the hollow part 110 to the base and be arranged along the flow channel 1122 during grouting or pouring, thereby achieving a dense integrated connection under vibration and compaction.

[0047] Meanwhile, the layout of the flow hole 3121 and the connecting hole 1121 also facilitates air escape and the discharge of excess slurry, reducing surface defects caused by air retention. If necessary, temporary filters or removable plugs can be installed at the location of the connecting hole 1121 or the flow hole 3121 to control the flow rate during the pouring stage and prevent debris from entering, thus facilitating the controllability of construction quality and on-site cleanup.

[0048] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bottom corner forming structure for aluminum formwork used in building construction, characterized in that, Includes a corner shell (100), which is L-shaped in general and has a hollow part (110) on the side facing the wall; The corner shell (100) includes an arched surface (111), a bottom surface (112), and connecting surfaces (113) located at both ends. The arched surface (111), the bottom surface (112), and the connecting surfaces (113) at both ends together form the hollow part (110). The bottom surface (112) is provided with a plurality of connecting holes (1121), and the bottom side of the bottom surface (112) is provided with a flow groove (1122) along its length direction; A connection hole (1131) is provided on the connection surface (113); The top of the arched surface (111) protrudes towards the wall side from the connecting surfaces (113) at both ends, and its cross-section extends in a smooth hook shape.

2. The aluminum formwork bottom corner forming structure for building construction according to claim 1, characterized in that, A protruding connecting part (200) is fixedly provided at the middle corner position of the corner shell (100) and on the bottom surface (112).

3. The aluminum formwork bottom corner forming structure for building construction according to claim 1, characterized in that, A connecting structure (300) is provided on the bottom surface (112).

4. The aluminum formwork bottom corner forming structure for building construction according to claim 3, characterized in that, The connecting structure (300) includes a connecting piece (310), which is disposed between adjacent connecting holes (1121). The connecting piece (310) includes a bonding piece (311) and raised pieces (312) disposed on both sides of the bonding piece (311). The raised pieces (312) are provided with flow holes (3121).

5. The aluminum formwork bottom corner forming structure for building construction according to claim 4, characterized in that, The top of the raised piece (312) is hook-shaped.

6. The aluminum formwork bottom corner forming structure for building construction according to claim 4, characterized in that, The connecting pieces (310) between adjacent connecting holes (1121) are connected in series.

7. The aluminum formwork bottom corner forming structure for building construction according to claim 4, characterized in that, The bonding piece (311) has a support plate (3111) vertically installed on the side away from the wall.

8. The aluminum formwork bottom corner forming structure for building construction according to claim 7, characterized in that, The bottom surface (112) is fixedly provided with a locking part (400) for each of the bonding pieces (311). The locking part (400) includes a locking middle end (410) and a locking end (420). One end of the locking middle end (410) is fixedly connected to the bottom surface (112), and the other end is fixedly connected to the locking end (420). A locking groove (3112) is provided on the side of the bonding piece (3111) away from the support plate (3111). The locking groove (3112) can be moved into the locking middle end (410). The locking end (420) is used to abut against the top surface of the bonding piece (311).

9. The aluminum formwork bottom corner forming structure for building construction according to claim 8, characterized in that, The snap-fit ​​groove (3112) is flared on the side away from the support plate (3111).

10. The aluminum formwork bottom corner forming structure for building construction according to claim 4, characterized in that, At least one flow hole (3121) on each of the raised pieces (312) is disposed opposite the connecting hole (1121).

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