Core mold box of core mold floor slab

Abstract

The utility model discloses a core mould box of a core mould floor cover plate, which relates to the field of hollow mould boxes, and adopts the technical scheme that the core mould box comprises a mould box body, a vertically through air outlet hole is formed in the middle of the mould box body, and an inner cavity of the mould box body is isolated from the outside. Air in the middle of the poured mold box body can be smoothly exhausted through the air outlet holes, hollowing is avoided, the construction quality is improved, concrete columns are finally formed at the air outlet holes, and the overall supporting strength of the mold box can be remarkably improved.

Description

Technical Field

[0001] This utility model relates to a core mold box for core mold floor slabs, mainly in the field of hollow mold boxes. Background Technology

[0002] The national standard specifies a minimum construction thickness for floor slabs. However, this thickness increases both construction costs and the self-weight of the floor slab. Therefore, the commonly used solution is to use hollow floor slabs. Specifically, hollow formwork is used when pouring the floor slab. However, if the bottom area of ​​the hollow formwork is set to be large, voids are likely to occur during construction. This is because the concrete flows downward from the outside to the bottom of the formwork during pouring, and it is difficult for the air in the middle of the hollow formwork to escape, thus forming voids. In addition, a large area of ​​hollow formwork will also affect the support strength. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model proposes a core mold box for a core mold floor slab. Air in the middle of the cast mold box body can be smoothly discharged through the air vent, avoiding the formation of voids and improving construction quality. Finally, a concrete column will be formed at the air vent, which can significantly improve the overall support strength of the mold box.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: it includes a mold box body, and the middle part of the mold box body is provided with a vertically penetrating air outlet. The inner cavity of the mold box body is isolated from the outside.

[0005] The technical principle and beneficial effects of this utility model are as follows:

[0006] When pouring concrete, the concrete is poured from the outside of the formwork body and flows from the outside to the center. Because there are air vents running through the middle of the formwork body, the air in the middle of the poured formwork body can be smoothly discharged through the air vents, avoiding the formation of voids, improving the construction quality, and finally forming concrete columns at the air vents, which can significantly improve the overall support strength of the formwork body.

[0007] Preferably, the bottom of the mold body is provided with several ventilation grooves, which extend outward from the vent holes to the outer edge of the mold body. This facilitates the flow of concrete towards the vent holes and forms reinforcing ribs at the bottom of the mold, improving its supporting strength.

[0008] Preferably, the top of the mold body is provided with several ventilation grooves, which extend outward from the vent holes to the outer edge of the mold body. This forms reinforcing ribs on the top of the mold body, improving its support strength.

[0009] Preferably, the sidewall of the mold body has several isolation protrusions arranged outward from the middle. This facilitates the formation of an isolation structure with the surrounding reinforcing steel frame, preventing the sidewall of the mold body from directly contacting the reinforcing steel frame.

[0010] Preferably, the mold body is divided into an upper box, a lower box, and an inner cylinder from the middle. The bottom of the upper and lower boxes are respectively provided with connection ports. The upper and lower boxes are interlocked. The inner cylinder is located inside the mold body, and its two ends are respectively connected to the connection ports. This modular structure facilitates the fabrication of the mold body, allowing for direct plaster joint assembly during construction.

[0011] Preferably, the upper and lower boxes are symmetrical trapezoidal structures. This facilitates stacking the upper and lower boxes together and makes transportation easier.

[0012] Preferably, the outer edge of the upper box body is provided with an undercut edge that overlaps the outer edge of the lower box body. This improves the sealing performance at the joint. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only two of the drawings in this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a side view of an embodiment of the present utility model;

[0015] Figure 2 This is a top view of an embodiment of the present utility model.

[0016] The components include: 1. Mold body; 2. Vent hole; 3. Ventilation groove; 4. Isolation protrusion. Detailed Implementation

[0017] The technical solutions of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely preferred embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Example

[0019] like Figure 1As shown, this embodiment of the utility model includes a mold body 1, with a vertically penetrating vent 2 in the middle of the mold body 1. The inner cavity of the mold body 1 is isolated from the outside. The mold body 1 in this solution is made of plaster, which is lighter.

[0020] The technical principle and beneficial effects of this utility model are as follows:

[0021] When pouring concrete, the concrete is poured from the outside of the formwork body 1 and flows from the outside of the concrete formwork body 1 to the center. Since there is an air vent 2 that runs vertically through the center of the formwork body 1, the air in the center of the poured formwork body 1 can be smoothly discharged through the air vent 2, avoiding the formation of voids, improving the construction quality, and finally forming a concrete column at the air vent 2, which can significantly improve the overall support strength of the formwork.

[0022] The bottom of the mold body 1 is provided with several ventilation grooves 3, which extend outward from the air outlets 2 to the outer edge of the mold body 1. This facilitates the flow of concrete towards the air outlets 2 and forms reinforcing ribs at the bottom of the mold, improving its supporting strength.

[0023] The top of the mold body 1 is provided with several ventilation grooves 3, which extend outward from the air outlet 2 to the outer edge of the mold body 1. This forms reinforcing ribs on the top of the mold, improving its support strength.

[0024] The sidewall of the mold body 1 is provided with several isolation protrusions 4 extending outward from the middle. This facilitates the formation of an isolation structure with the surrounding steel reinforcement frame, preventing the sidewall of the mold body 1 from directly contacting the steel reinforcement frame.

[0025] The mold body 1 is divided into an upper box, a lower box, and an inner cylinder by a central section. The bottom of the upper and lower boxes are respectively provided with connection ports, and the upper and lower boxes are interlocked. The inner cylinder is located inside the mold body 1, and its two ends are respectively connected to the connection ports. The modular structure facilitates the fabrication of the mold body 1, allowing for direct plaster joint assembly during construction. The inner cylinder forms the air vent structure.

[0026] The upper and lower boxes are symmetrical trapezoidal structures. This facilitates stacking the upper and lower boxes together and makes transportation easier. Figure 2 As shown, the overall structure is a rotary structure.

[0027] The outer edge of the upper box is provided with an inverted edging that overlaps the outer edge of the lower box. This improves the sealing performance at the joint.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A core mold box for a core mold floor slab, characterized in that, Includes a mold body (1), wherein a vertically penetrating vent (2) is provided in the middle of the mold body (1), and the inner cavity of the mold body (1) is isolated from the outside. The bottom of the mold body (1) is provided with several ventilation grooves (3), and the ventilation grooves (3) extend outward from the air outlet (2) to the outer edge of the mold body (1); The side wall of the mold body (1) is provided with several isolation protrusions (4) arranged outward from the middle; The mold body (1) is divided into an upper box, a lower box and an inner cylinder from the middle. The bottom of the upper box and the lower box are respectively provided with connection ports. The upper box and the lower box are interlocked. The inner cylinder is located inside the mold body (1). The two ends of the inner cylinder are respectively connected to the connection ports. The upper box and the lower box are symmetrical trapezoidal structures.

2. The core mold box for a core mold floor slab according to claim 1, characterized in that: The top of the mold body (1) is provided with several ventilation grooves (3), which extend outward from the air outlet (2) to the outer edge of the mold body (1).

3. The core mold box for a core mold floor slab according to claim 1, characterized in that: The outer edge of the upper box is provided with a rim that buckles the outer edge of the lower box.

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