Double-layer cantilever plate rapid closing structure

Abstract

The utility model relates to a kind of double-layer overhanging plate quick closing structure, belong to the technical field of building construction equipment.It aims to solve the existing double-layer overhanging plate pouring construction, due to the top of lower overhanging plate open plugging difficulty caused by the problems of leakage and construction quality.This structure includes a plurality of splicable closure plate units and at least one support column.The splicing edge of the closure plate unit is provided with a notch, and the adjacent unit is spliced, and the notch is enclosed to form a through hole for passing the support column.This structure uses vertical support first, then closed surface layer construction method, which makes the support and closure two steps relatively independent, and workers can quickly and accurately install the support column in place first, then use the closure plate unit to quickly close the opening like a jigsaw, and form a stable whole through the locking mechanism between the plates.The utility model is quick to install, structurally stable, and has good sealing, greatly improving construction efficiency and engineering quality.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, specifically to a temporary mold enclosure structure for rapid construction of integrated casting of double-layer cantilever slabs and shear walls. Background Technology

[0002] In high-rise building construction, double-layer cantilever slab structures are widely used for bay windows, balconies, and other similar features. These structures are typically poured with concrete along with the main shear walls to ensure structural integrity. During construction, the contractor pre-erects complete formwork for the shear walls and both layers of cantilever slabs. However, to facilitate subsequent concrete vibration, the top of the lower cantilever slab's formwork is left open. When pouring concrete, as the liquid level rises to the height of the lower cantilever slab, the concrete overflows from this opening, causing waste and pollution.

[0003] Traditional sealing methods utilize materials such as fine-mesh wire mesh and square timber to seal the space between the shear wall and the base slab, forming a buffer and deceleration structure to reduce concrete flow and velocity, allowing the base slab to be poured together with the vertical structure. However, to enhance the deceleration effect, the buffer structure must reduce structural porosity, which can cause aggregate and cement separation, affecting the structural strength of the base slab. Furthermore, during the sealing process, the previously poured concrete in the wall may have already begun to set, forcing an interruption in the concrete pouring process and easily leading to aggregate separation at structural joints, severely impacting the building's structural safety. Therefore, the market urgently needs a specialized sealing device that can be installed quickly and has a reliable structure. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a quick-closing structure for double-layer cantilever slabs, which adopts a modular installation method of splicing, aiming to solve the problems of initial setting and cold joints of concrete caused by the long time required for temporary sealing in the prior art, and to achieve efficient and high-quality integrated pouring.

[0005] To solve the above-mentioned technical problems, this double-layer cantilever slab rapid closure structure is applied to the construction process of concrete pouring for a double-layer cantilever slab structure consisting of a shear wall and an upper and lower cantilever slab integrally connected to the shear wall. It includes at least two closure slab units and at least one support column. The closure slab units have notches on their splicing edges. After adjacent closure slab units are spliced, the corresponding notches are joined to form a through hole for enclosing the lower end of the support column.

[0006] Furthermore, on the upper surface of two adjacent closed plate units, there is an inter-plate locking mechanism for locking and fixing the two together.

[0007] Furthermore, the inter-plate locking mechanism is a latch-type locking component, with hanging rings and hook seats with pressing handles respectively provided at the upper and lower ends of the closed plate unit.

[0008] The optimized support column includes an outer support rod and an inner support rod that is telescopically sleeved within the outer support rod, as well as a quick-locking mechanism for locking the relative position of the inner support rod and the outer support rod.

[0009] Furthermore, the upper end of the outer support rod is provided with a top support to increase the contact area.

[0010] Furthermore, the top support is provided with an anti-slip pad to increase friction.

[0011] Furthermore, the lower part of the support column is movably hinged with at least two diagonal braces, the free ends of which can be rotated to abut against the upper surface of the enclosed plate unit.

[0012] This double-layer cantilever slab rapid closure structure separates the support and closure steps by first constructing the support columns and then closing the formwork. Workers can first install the support columns, then use the closing panel units extending from both sides to quickly close the working surface, forming a stable whole through the locking mechanism between the panels. Diagonal bracing is then used to quickly support the working surface. This invention offers quick installation, structural stability, and excellent sealing, greatly improving construction efficiency and project quality. Attached Figure Description

[0013] The following description, in conjunction with the accompanying drawings, further illustrates a rapid closure structure for a double-layer cantilever slab according to this utility model: Figure 1 This is a schematic diagram of the overall installation state of this double-layer cantilever slab quick-closing structure; Figure 2 yes Figure 1 A magnified schematic diagram of a portion of the structure at point A. Figure 3 This is a schematic diagram of the assembled structure of the closed plate unit; Figure 4 This is a schematic diagram of the disassembled state structure of the closed plate unit; Figure 5 This is a structural schematic diagram of the support column.

[0014] In the picture: 1-Shear wall; 2-Upper cantilever slab; 3-Lower cantilever slab; 4-Closed plate unit; 41-Notch, 42-Through hole; 5-Support column; 51-Outer support rod; 52-Inner support rod; 53-Quick locking mechanism; 54-Top support; 55-Anti-slip pad; 56-Diagonal brace; 6-Interplate locking mechanism; 61-Hanging ring, 62-Hook seat; 7-Place block. Detailed Implementation

[0015] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0016] In the description of this utility model, it should be understood that the terms "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] The present invention will be further described below with specific embodiments, but the scope of protection of the present invention is not limited to the following embodiments.

[0018] Implementation method 1: such as Figures 1 to 5 As shown, this double-layer cantilever slab rapid closure structure is applied to the construction process of concrete pouring for a double-layer cantilever slab structure consisting of a shear wall 1 and an upper cantilever slab 2 and a lower cantilever slab 3 integrally connected to the shear wall 1. It includes at least two closure slab units 4 and at least one support column 5. Each closure slab unit 4 has a notch 41 on its splicing edge. After adjacent closure slab units 4 are spliced, their corresponding notches 41 form a through hole 42 to enclose the lower end of the support column 5. The size of this through hole is adapted to the body of the support column 5, used to "lock" the support column 5 from the bottom. By splicing multiple closure slab units 44, construction openings of different areas can be flexibly covered.

[0019] Implementation method 2: such as Figure 3 , 4 As shown, this double-layer cantilever slab quick-closing structure has an inter-slab locking mechanism 6 on the upper surface of two adjacent slab units 4 for locking and fixing them together. The inter-slab locking mechanism 6 is a snap-lock type locking component. The upper and lower ends of the slab unit 4 are respectively provided with a hanging ring 61 with a pressing handle and a hook seat 62. When locking is required, the hanging ring 61 is fastened into the hook seat 62, and the pressing handle is pressed down. The lever principle is used to generate a huge tension force, which tightly pulls the two slabs together and locks them in place.

[0020] Implementation method 3: such as Figure 5As shown, the support column 5 of this double-layer cantilever slab quick-closing structure includes an outer support rod 51 and an inner support rod 52 telescopically fitted inside the outer support rod 51, as well as a quick-locking mechanism 53 for locking the relative position of the inner support rod and the outer support rod. The upper end of the outer support rod 51 is provided with a top support 54 to increase the contact area. The top support 54 is provided with an anti-slip pad 55 to increase friction. The support column can be quickly adjusted and locked in its total length. The larger top support 54 is used to stably abut against the bottom surface of the mold of the upper cantilever slab 2. The anti-slip pad 55 is used to prevent slippage during the support process. To further improve the stability of the support column 5 and assist the closing slab unit 4 in resisting the lateral pressure of concrete, the lower part of the support column 5, preferably the lower part of the outer support rod 51, is movably connected by two symmetrically arranged diagonal braces 56 or three circumferentially equidistantly arranged radial diagonal braces 56 via a hinged connection. The diagonal brace 56 can be rotated so that its free end abuts against and presses against the upper surface of the closed plate unit 4, forming a stable triangular support structure together with the support column 5 and the closed plate unit 4. By adding a movable and deployable diagonal brace 56 to the lower part of the support column 5, not only is the lateral stability of the support column 5 itself greatly enhanced, preventing its root from slipping under the pouring pressure; at the same time, the diagonal brace 56 transmits the vertical stability of the support column to the closed plate 4, effectively helping the closed plate 4 resist the lateral compression of the concrete, preventing the plate unit from bulging and deforming, further ensuring the overall flatness of the plate surface and the sealing of the joints between the plates, and preventing grout leakage.

[0021] During construction: such as Figure 1 , 2 As shown, during construction, several pads 7 (such as cement pads) are placed in predetermined positions inside the mold of the lower cantilever slab 3 according to the support requirements. Then, a support column 55 is taken, its lower end is placed on the pad 7, and its quick-locking mechanism 53 is operated to extend the support column 5, so that the top support 54 firmly presses against the bottom surface of the mold of the upper cantilever slab 2. This step is repeated to pre-install all the required support columns 5. After pouring to the height of the lower cantilever slab mold, two closed plate units 4 are taken and brought close to each other from both sides of a support column 5, so that the notches 41 of the two are aligned and enclose the lower part of the support column 5, and the two plates are neatly spliced ​​together. The inter-plate locking mechanism 6 located on the upper surface of the two closed plate units 4 is operated to fasten the hanging ring 61 into the hook seat 62 and press down the clamping handle to firmly lock the two plates. The above steps are repeated to splice and lock all the roots of the support columns 5 and the remaining open areas with more closed plate units 4 to form a complete closed plane. After completing the above steps, you can continue pouring concrete to achieve high-quality integrated construction.

[0022] This double-layer cantilever slab rapid closure structure decouples the support and closure steps by first erecting the columns and then constructing the enclosure panels. Workers can quickly and accurately install the support columns in place first, and then assemble the enclosure panel units like assemblies. Figure 1 This design allows for quick and easy closure of the opening, forming a stable whole through a locking mechanism between the panels. This invention offers quick installation, a robust structure, and excellent sealing, significantly improving construction efficiency and project quality. Specifically, (1) The new construction mode of first erecting columns and then enclosing panels is adopted, and the support and enclosure are separated. Workers can quickly place the support columns in place first, and then use modular enclosure panels to splice and enclose them. The installation process is like assembling building blocks, which greatly shortens the sealing operation time and effectively avoids the problem of initial concrete setting.

[0023] (2) The support column is directly supported between the upper and lower templates, and the force is directly and clearly defined; the closed plate units are firmly connected by the inter-plate locking mechanism to form an integral closed plane, which can effectively resist the lateral pressure during concrete pouring.

[0024] (3) Modular closed panel units can be flexibly spliced ​​and combined according to the shape and size of the construction area, and have good versatility.

[0025] The above description illustrates the main features, basic principles, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments or examples described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments or examples should be considered exemplary and not restrictive. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rapid closure structure for a double-layer cantilever slab, applied to the construction process of concrete pouring for a double-layer cantilever slab structure consisting of a shear wall (1), an upper cantilever slab (2) integrally connected to the shear wall (1), and a lower cantilever slab (3), characterized in that: It includes at least two closed panel units (4) and at least one support column (5); wherein, The sealing plate unit (4) has a notch (41) on its splicing edge. After adjacent sealing plate units (4) are spliced ​​together, the corresponding notches (41) of the two are spliced ​​together to form a through hole (42) for enclosing the lower end of the support column (5).

2. The rapid closure structure for double-layer cantilever slabs according to claim 1, characterized in that: On the upper surface of two adjacent closed plate units (4), there is a plate locking mechanism (6) for locking and fixing the two together.

3. The rapid closure structure for double-layer cantilever slabs according to claim 2, characterized in that: The inter-plate locking mechanism (6) is a snap-locking component. The upper and lower ends of the closed plate unit (4) are respectively provided with a hanging ring (61) with a pressing handle and a hook seat (62).

4. The rapid closure structure for double-layer cantilever slabs according to claim 1, characterized in that: The support column (5) includes an outer support rod (51) and an inner support rod (52) that is telescopically sleeved inside the outer support rod (51), as well as a quick locking mechanism (53) for locking the relative position of the inner support rod and the outer support rod.

5. The rapid closure structure for double-layer cantilever slabs according to claim 4, characterized in that: The upper end of the outer support rod (51) is provided with a top support (54) for increasing the contact area.

6. The rapid closure structure for double-layer cantilever slabs according to claim 5, characterized in that: The top support (54) is provided with an anti-slip pad (55) to increase friction.

7. The rapid closure structure for a double-layer cantilever slab according to claim 6, characterized in that: The lower part of the support column (5) is movably hinged with at least two diagonal braces (56), and the free end of the diagonal braces (56) can be rotated to abut against the upper surface of the closed plate unit (4).

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