CN215630970U

CN215630970U - Cement-based disassembly-free template

Info

Publication number: CN215630970U
Application number: CN202023264081.6U
Authority: CN
Inventors: 陈艺通; 陈致平
Original assignee: Guangzhou Qingneng Building Materials Co ltd
Current assignee: Guangzhou Qingneng Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-01-25
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a cement-based disassembly-free template, which relates to the technical field of building materials and is characterized in that a plate body of the disassembly-free template is made of a cement-based material, at least two inverted cone-shaped convex strips are arranged on one surface of the plate body, and the inverted cone-shaped convex strips are parallel to the long edges of the plate body. The thickness of the cement-based disassembly-free template body is 10-30 mm, the height of the inverted conical convex strip is 5-30 mm, and the width of the upper surface of the inverted conical convex strip is 10-60 mm. The cement-based disassembly-free template has the advantages of reasonable mechanical structure, high compression strength, bending strength and tearing strength, and thin thickness, can increase the available space of the built house, and reduces the construction cost of the building; can be completely combined with concrete into a whole, and can never fall off; the composite floor slab is used for building a composite floor slab, and the operations of nail grinding, hole patching, decoration and the like on the slab surface are not needed, so that manpower and material resources can be saved; can be conveniently produced in large scale by automation and mechanization, and is suitable for the construction of floor slabs, walls and stairs of various buildings.

Description

Cement-based disassembly-free template

Technical Field

The utility model relates to the field of building materials, in particular to a cement-based disassembly-free formwork.

Background

In the construction of buildings, the non-dismantling formwork which is used at present is usually plate-shaped, and has the defect that in the long-term use process of the buildings, the binding force between the non-dismantling formwork and concrete is greatly problematic, so that accidents such as falling off of the non-dismantling formwork are caused. In order to solve the problem, before concrete is poured, the disassembly-free formwork is generally required to be punched, and the disassembly-free formwork is hooked on the reinforcing frame by using the cushion hook to pour the concrete, so that the defects that the integrity of the plate surface of the disassembly-free formwork is damaged, and a hole repairing and surface decoration process is required to be added subsequently are overcome. In the technical scheme disclosed in the Chinese patent 'a laminated heat preservation floor' (patent number 201820762796.8), a dovetail groove is arranged on the heat preservation floor. However, the dovetail groove adopted to increase the bonding force has the following disadvantages: 1. because the dovetail groove is formed on the plate body, the required plate body is thicker, and the production and transportation cost is increased; 2. after the dovetail groove is formed in the plate, the strength of the plate body can be reduced; 3. because the plate body is made of the non-cement-based heat insulation material, after concrete is poured, the heat insulation material and the concrete cannot be well combined or cannot be combined at all, so that the wall body is layered, and the strength of the wall body is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the existing non-dismantling formwork and provide the non-dismantling formwork which can be firmly combined with concrete.

The technical scheme of the cement-based disassembly-free template is as follows: the plate body material of exempting from to tear open the template is cement-based material, is provided with the back taper sand grip that is no less than two in the one side of plate body, the back taper sand grip is parallel with the long limit of plate body.

Preferably, the thickness of plate body is 10 ~ 30mm usually, and the height of back taper sand grip is 5 ~ 30mm usually, and the width of back taper sand grip upper surface is 10 ~ 60mm usually.

The cement-based disassembly-free formwork has the following positive technical effects because the plate surface adopts the inverted conical convex strip structure:

1. because the mechanical structure of the inverted cone-shaped raised lines on the plate surface is more reasonable, the whole plate body can play a role of reinforcing ribs, and compared with the existing like material non-dismantling template, the cement-based non-dismantling template has over one time higher compression strength, bending strength and tearing strength under the condition of the same plate thickness or the same plate surface volume. On the premise of ensuring the use strength, the thickness of the cement-based disassembly-free template plate body can be more than 40% thinner than that of the conventional disassembly-free template made of the same material, and the material consumption can be saved by more than one time. Therefore, the production and transportation cost of the non-dismantling template can be greatly reduced, and the construction cost is reduced.

2. Because the cement-based non-dismantling formwork has thin thickness (compared with the existing non-dismantling formwork made of the same material under the same stress condition), the thickness of a floor slab cannot be increased when the cement-based non-dismantling formwork is used, namely the cement-based non-dismantling formwork can be used for building the floor slab with the lowest thickness, so that the available space of a house can be increased, and the construction cost of the building can be reduced.

3. The structure performance is reliable: after the concrete is cast in place, the inverted cone-shaped raised lines can be embedded into the concrete to form firm connection with a concrete structure, and the plate body material is cement-based and can be completely combined with the concrete into a whole, so that the cement-based disassembly-free formwork has the same service life as a building, and no matter how long the service time is, the risk of delamination and falling off can be avoided. Even when an earthquake occurs, the cement-based dismantling-free template can not fall off as long as a building does not collapse.

4. The cement-based disassembly-free template is used for manufacturing the laminated floor slab, and the screws for fixing the reinforcing steel bar frames are directly nailed on the inverted-cone-shaped raised lines, so that the plate body is not penetrated, the appearance of the plate surface is not damaged, the screws protruding out of the plate surface are not needed after the construction of the laminated floor slab is finished, the operations of nailing, hole patching, decoration and the like on the plate surface are not needed, the manpower and material resources can be saved, and the manufacturing cost is reduced.

5. The cement-based disassembly-free template has a simple structure, and the inverted cone-shaped raised lines on the plate body are parallel to the long edges of the plate body, so that the cement-based disassembly-free template can be conveniently produced automatically, mechanically and in large batch. The production line has high yield, so the cost is low and the product has more market competitiveness.

6. Compared with the disassembly-free template made of the same type of cement-based material, the cement-based disassembly-free template has the advantages of lower weight, convenience in installation and easiness in ensuring the engineering quality on the premise of meeting the use requirement.

7. The applicability is strong: the cement-based disassembly-free template is not only suitable for high-rise and super high-rise civil buildings, but also suitable for industrial buildings and rural low-rise houses, and can be used for building floor slabs and stairs, and can also be used for building wallboards and other types of buildings.

Drawings

The cement-based non-dismantling formwork of the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic perspective view of one embodiment of a cement-based demolition-free form according to the present invention.

Fig. 2 is a front view of the embodiment of fig. 1 (the view scale is enlarged by a factor of 3 compared to fig. 1).

Fig. 3 is a schematic perspective view of a cement-based demolition-free formwork according to an embodiment 2 of the present invention.

Fig. 4 is a front view of the embodiment of fig. 3 (the view scale is enlarged by a factor of 3 compared to fig. 3).

Fig. 5 is a perspective view of one embodiment of the cement-based demolition-free form of the embodiment of fig. 3 when applied to the construction of a laminated floor slab.

In the figure: 1. plate body, 2, back taper sand grip, 3 steel reinforcement frame.

Detailed Description

Referring to fig. 1, 2, 3 and 4, the plate body 1 of the cement-based disassembly-free formwork is made of a cement-based material (such as a concrete plate, a cement fiberboard, a cement wood chip board, a porcelain wood board and a concrete wood board), at least two inverted cone-shaped convex strips 2 are arranged on one surface of the plate body 1, and the inverted cone-shaped convex strips 2 are parallel to the long edges of the plate body 1.

Preferably, the thickness of the plate body 1 is 10-30 mm, the height of the inverted conical convex strip 2 is 5-30 mm, and the width of the upper surface of the inverted conical convex strip is 10-60 mm.

Referring to fig. 5, when the cement-based non-dismantling formwork of the present invention is applied to the construction of a composite floor slab, the steel bar frames 3 (steel bar cages, steel bar trusses) are fixed on the inverted conical convex strips 2 by screws. Because the fixed requirement of the fixed enough satisfaction screw length of back taper sand grip 2 plus plate body 1, consequently the screw is only squeezed into plate body 1, does not pierce through plate body 1, can not destroy the face outward appearance. After the composite floor slab is built, no screw protruding out of the slab surface is needed, operations such as nail grinding, hole patching, decoration and the like on the slab surface are not needed, and manpower and material resources can be saved.

In the plate body of the cement-based non-dismantling formwork, a reinforcing mesh, an iron wire mesh, grid cloth, or glass fiber, steel fiber, carbon fiber and other materials can be added to increase the strength of the plate body.

The cement-based disassembly-free formwork can be coated with decorative coatings such as baking-free ceramics, building coatings and the like in advance on one plane surface (non-inverted cone-shaped convex strip surface) of the cement-based disassembly-free formwork, so that surface decoration is not needed after the building is built.

Claims

1. A cement-based disassembly-free template is made of cement-based materials and is characterized in that: be provided with in the one side of plate body and be no less than two back taper sand grip, the back taper sand grip is parallel with the long limit of plate body.

2. The cement-based non-dismantling formwork as recited in claim 1, wherein: the thickness of plate body is 10 ~ 30mm, and the height of back taper sand grip is 5 ~ 30mm, and the width of back taper sand grip upper surface is 10 ~ 60 mm.