CN114045969A

CN114045969A - Anti combination mandrel that floats is exempted from to hollow floor

Info

Publication number: CN114045969A
Application number: CN202111366395.3A
Authority: CN
Inventors: 阳文皇; 毕育鸣
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-02-15

Abstract

The invention discloses an anti-floating combined core mould for a hollow floor slab, which comprises a core mould body, grid plates and transverse supporting rods, wherein the upper surface and the lower surface of the core mould body are open, the grid plates cover the upper surface and the lower surface of the core mould body and are fixedly connected with the core mould body, regular or irregular-shaped meshes are arranged on the grid plates, the size of the meshes is smaller than the diameter of fine sand for building concrete, and the transverse supporting rods stretch across the open opening of the core mould body and are used for supporting the upper grid plate and the lower grid plate. The anti-floating plastic steel combined core mould for the hollow floor slab is light in weight and convenient to combine, the meshes on the grid plate can effectively remove air generated during concrete pouring, the internal pressure and the external pressure of the core mould are equal, and an air bag cannot be formed in the core mould, so that the core mould cannot float upwards, and the anti-floating cost of the core mould is reduced.

Description

Anti combination mandrel that floats is exempted from to hollow floor

Technical Field

The invention relates to the technical field of floors, in particular to a floating-free combined core mold for a hollow floor, and belongs to a built-in forming hole built-in mold for the hollow floor.

Background

The building body bearing capacity is larger as the floor is higher, the building body is more unfavorable for the safety of the building body, so that the building material with lighter weight and convenient construction is more important to select, particularly, the hollow floor slab is produced by selecting the floor slab material, the hollow floor slab has the advantages of light dead weight, large span, good sound insulation and noise prevention effects, capability of improving the utilization rate of the building space and the like, and has the advantages of shortening the construction period and saving the cost, thereby having larger market prospect.

When the hollow floor slab is cast with concrete, the concrete vibrates to generate buoyancy on the core die, the core die is easy to shift under the action of the buoyancy, and the upper layer of reinforcing steel bars of the floor slab is jacked up, so that quality and safety accidents occur. Therefore, effective measures must be taken to ensure that the position of the core mold does not change. Common anti-floating measures for hollow floor slabs include: 1. directly binding a single core mold by using a steel wire, for example, fixing the core mold by using the steel wire in a method of drilling a bottom mold of a floor slab; 2. the core mould is prevented from floating upwards by adopting anti-floating pressure ribs, and is fixed by a steel wire by a method of drilling through a bottom mould; 3. when the concrete is poured, the core mould is pressed down by a weight, and the weight is removed after the concrete is initially set. The existing anti-floating measures have the technical problems of high cost, high labor intensity, damage to the building template, influence on the service life of the building template and the like.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the plastic-steel combined core mould which is light in weight, convenient and fast to combine and free of floating, so that the floating cost of the core mould is reduced.

The technical scheme adopted by the invention is as follows: the utility model provides a hollow floor is with exempting from anti combination mandrel that floats, includes mandrel body, grid plate, horizontal bracing piece, be uncovered above and below the mandrel body, the grid plate covers uncovered above and below the mandrel body and links firmly with the mandrel body, horizontal bracing piece spanes and is used for supporting upper and lower grid plate on the uncovered of mandrel body.

Further, the opposite sides of the opening of the core mold body are correspondingly provided with transverse supporting fixing grooves, and two ends of each transverse supporting rod are respectively and fixedly connected to the corresponding transverse supporting fixing grooves.

Further, still include vertical bracing piece, vertical bracing piece is built-in the mandrel body and both ends connect upper and lower grid plate respectively.

Furthermore, the uncovered edge of mandrel body is equipped with the enhancement frame, be provided with vertical stiffening groove or strengthening rib on the mandrel body lateral wall.

Further, the grid plate is provided with meshes in regular or irregular shapes, and the size of the meshes is smaller than the diameter of the fine sand for the building concrete.

Further, the whole body of the core mould body is a square, a cuboid, a cylinder and other regular or irregular bodies, and the opening on the core mould body is one or more round holes, square holes or other shapes.

Further, the core mold body is made of a high polymer material and an alloy thereof.

Further, the mesh plate is made of metal or an alloy material thereof.

Furthermore, the vertical supporting rod and the horizontal supporting rod are made of bamboo or made of high polymer materials and alloys thereof.

Further, including two mandrel bodies, two mandrel bodies symmetry concatenations, the net board covers the uncovered department in upper portion of upper strata mandrel body and the uncovered department in lower part of lower floor's mandrel body.

According to the anti-floating combined core mould for the hollow floor slab, the meshes on the grid plate can effectively remove air generated during concrete pouring, so that the internal pressure and the external pressure of the core mould are equal, and an air bag cannot be formed in the core mould, so that the core mould cannot float upwards, and the anti-floating cost of the core mould is reduced.

Drawings

Fig. 1 is a schematic structural view of an anti-floating plastic steel combination core mold of an embodiment 1 of the invention.

FIG. 2 is a schematic view of the anti-floating plastic steel combined core mold of the present invention.

FIG. 3 is another schematic view of the anti-floating plastic steel combined core mold of the present invention.

Fig. 4 is a schematic structural view of an anti-floating plastic steel combination core mold in embodiment 2 of the invention.

Detailed Description

In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.

As shown in fig. 1, the anti-floating combined core mold for a hollow floor slab of the present embodiment includes a core mold body 1, a grid plate 2, a transverse support rod 7, and a vertical support rod 3. The upper surface and the lower surface of the core mould body 1 are open, and the peripheral wall is in a compact plate shape; the mesh plate 2 covers the upper and lower openings of the core mold body 1 and is fixedly connected with the core mold body 1 through mesh plate fixing nails, regular or irregular meshes are arranged on the mesh plate 2, the size of each mesh is smaller than the diameter of fine sand for building concrete, the shape of each mesh can be regular or irregular such as circular, square and rectangular, and air generated in concrete pouring can be effectively discharged through the meshes. The horizontal support rod 7 stretches across the opening of the core mold body 1 and is used for supporting the upper grid plate 2 and the lower grid plate 2, the opposite sides of the opening of the core mold body 1 are correspondingly provided with horizontal support fixing grooves 6, and two ends of the horizontal support rod 7 are respectively fixedly connected into the horizontal support fixing grooves 6. The vertical support rods 3 are arranged in the core mould body 1, the two ends of each vertical support rod are respectively connected with the upper grid plate 2 and the lower grid plate 2, and the horizontal support rods 7 and the vertical support rods 3 are used for supporting the upper grid plate and the lower grid plate 2. In order to increase the strength of the core mold, a reinforcing frame 5 is arranged at the edge of the upper opening of the core mold body 1, and a vertical reinforcing groove 4 is formed in the side wall of the core mold body 1.

In specific implementation, the opening on the core mold body 1 is one or more circular holes, square holes or other shapes. The whole core mold body 1 may be a cube or a cuboid. The core mould body 1 is made of high polymer materials and alloys thereof, the vertical support rods 3 and the horizontal support rods 7 are made of bamboo or high polymer materials and alloys thereof, and the grid plate 2 is made of metal or alloy materials thereof. In this embodiment, the material of the core mold body 1 is plastic steel, and the vertical support rod 3 and the horizontal support rod 7 are made of bamboo.

As shown in fig. 4, the present embodiment is different from embodiment 1 in that the non-floating plastic steel composite core mold for a hollow floor slab of the present embodiment includes two core mold bodies 1, the two core mold bodies 1 are symmetrically spliced, and the grid plate 2 covers an upper opening of the upper core mold body and a lower opening of the lower core mold body.

Many modifications and other embodiments of the invention will come to mind to one skilled in the art to which this invention pertains having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the inventions are not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. The utility model provides a hollow floor is with exempting from anti combination mandrel that floats which characterized in that: including mandrel body (1), grid plate (2), horizontal bracing piece (7), be uncovered above and below mandrel body (1), grid plate (2) cover uncovered above and below mandrel body (1) and link firmly with mandrel body (1), horizontal bracing piece (7) span be used for supporting upper and lower grid plate (2) on the uncovered of mandrel body (1).

2. The anti-floating combined core mould for the hollow floor slab as claimed in claim 1, wherein: the side edge opposite to the opening of the core mold body (1) is correspondingly provided with a transverse supporting fixing groove (6), and two ends of a transverse supporting rod (7) are respectively and fixedly connected into the transverse supporting fixing groove (6).

3. The anti-floating combined core mould for the hollow floor slab as claimed in claim 1, wherein: the core mould is characterized by further comprising vertical support rods (3), wherein the vertical support rods (3) are arranged in the core mould body (1) in a built-in mode, and two ends of the vertical support rods are respectively connected with the upper grid plate and the lower grid plate (2).

4. The anti-floating combined core mould for the hollow floor slab as claimed in claim 1, wherein: the edge of the opening of the core mold body (1) is provided with a reinforcing frame (5), and the side wall of the core mold body (1) is provided with a vertical reinforcing groove (4) or a reinforcing rib.

5. The anti-floating combined core mould for the hollow floor slab as claimed in claim 1, wherein: regular or irregular meshes are arranged on the grid plate (2), and the size of each mesh is smaller than the diameter of the fine sand for building concrete.

6. The anti-floating combined core mould for the hollow floor slab as claimed in claim 1, wherein: the integral core mold body (1) is a square, a cuboid, a cylinder and other regular or irregular bodies, and the opening on the core mold body (1) is one or more round holes, square holes or other shapes.

7. The anti-floating combined core mould for the hollow floor slab as claimed in claim 1, wherein: the core mould body (1) is made of high polymer materials and alloys thereof.

8. The anti-floating combined core mould for the hollow floor slab as claimed in claim 1, wherein: the grid plate (2) is made of metal or alloy material thereof.

9. The anti-floating combined core mould for the hollow floor slab as claimed in claim 1, wherein: the vertical supporting rod (3) and the transverse supporting rod (7) are made of bamboo or made of high polymer materials and alloys thereof.

10. An anti-floating combined core mould for a hollow floor slab as claimed in any one of claims 1 to 9, wherein: including two mandrel bodies (1), two mandrel bodies (1) symmetry concatenation, the uncovered department in upper portion of upper strata mandrel body (1) and the uncovered department in lower part of lower floor mandrel body (1) of grid plate (2) cover.