CN210947298U - Steel wire net frame composite fireproof heat-preservation external formwork - Google Patents

Abstract

The utility model discloses a compound fire prevention heat preservation exterior sheathing of steel wire net rack, including steel wire net lamella, insert steel wire layer, A level fire prevention heat preservation and B level insulation material layer to one side, the oblique plug wire that inserts the steel wire layer to one side is arranged according to certain interval, and welds on outermost steel wire net lamella to insert the steel wire layer to one side and pierce through net cloth mortar first layer, A level fire prevention heat preservation, adhesive linkage, B level insulation material layer and net cloth mortar second floor in proper order, and go deep into concrete wall's structural layer, the pouring back, steel wire net rack compound fire prevention heat preservation and concrete wall structural connection are integrative, form the effect of heat preservation and structural integration, as the outer heat preservation of wall body, no longer demolish.

Description

A steel mesh frame composite fireproof and thermal insulation outer formwork

technical field

The utility model relates to an external formwork of a building wall, in particular to a composite fireproof and thermal insulation external formwork of a steel wire mesh frame, which belongs to the technical field of building wall structure.

Background technique

my country's building external thermal insulation has been used for many years. Among them, the external wall thin plastering system and the sandwich thermal insulation system are two general thermal insulation systems, but many shortcomings have been found. The external wall film system has poor fire resistance and many fire hazards. , there have been many cases of fire on the outer wall, and at the same time, it is not resistant to aging. The general design is 25 years, which cannot reach the same life as the main body of the building. The sandwich insulation system has good fire resistance and can achieve the same life as the main body of the building. However, the construction process is cumbersome, the outer protective layer of the outer insulation layer is difficult to pour, and construction quality problems often occur. At the same time, the construction cost of the outer protective layer is also high.

Utility model content

The purpose of the present utility model is to provide a composite fireproof and thermal insulation outer formwork of a steel wire mesh frame in order to solve the above problems.

The utility model achieves the above object through the following technical solutions: a steel wire mesh frame composite fireproof and thermal insulation outer formwork, comprising a steel mesh sheet layer, an obliquely inserted steel wire layer, an A-level fireproof insulation layer and a B-level insulation material layer, and the steel mesh The lamella layer, the obliquely inserted steel wire layer, the A-level fireproof insulation layer and the B-level thermal insulation material layer are arranged in sequence from the outside to the inside. The obliquely inserted steel wire layer of the obliquely inserted steel wire layer is arranged at a certain interval and welded to the outermost steel wire. On the mesh layer, and the obliquely inserted steel wire layer penetrates the first layer of grid cloth mortar, A-grade fireproof insulation layer, adhesive layer, B-grade insulation material layer and grid cloth mortar second layer in turn, and penetrates deep into the concrete wall body structure.

As a further solution of the present invention, the A-grade fire-proof insulation layer is closely attached to the inner side of the steel mesh sheet layer, and the B-grade insulation material layer is closely attached to the inner side of the A-grade fire-proof insulation layer.

As a further solution of the present invention: the first layer of mesh cloth mortar is arranged in the A-level fire-proof insulation layer, the second layer of mesh cloth mortar is arranged in the B-level insulation material layer, and the A-level insulation material layer is arranged with a second layer of mesh cloth mortar. The fire-proof insulation layer and the B-class insulation material layer are connected by an adhesive layer.

As a further scheme of the present invention: the steel mesh layer is plastered as a leveling layer.

As a further solution of the present invention, the steel mesh sheet layer can be a corrosion-resistant woven mesh or welded mesh such as galvanized or spray-dipped plastic, stainless steel wire, and the like.

As a further scheme of the present utility model: the obliquely inserted steel wire layer can be made of galvanized steel wire, plastic-sprayed steel wire, stainless steel wire and the like.

As a further solution of the present invention, the A-grade fire-proof insulation layer is rock wool board, foamed glass ceramics or foamed concrete board, and it can also be other light-weight board that achieves A-grade fireproofing.

As a further scheme of the present utility model: the B-grade thermal insulation material layer can adopt various organic materials such as EPS board, graphite EPS board, extruded plastic board, graphite extruded plastic board, polyurethane board, phenolic board, etc. plate.

The beneficial effects of the utility model are: the steel wire mesh frame composite fireproof and thermal insulation outer template is reasonably designed:

1. Solve the problem of unsafe external insulation falling off. Because the outermost steel mesh is welded by oblique wire insertion, it penetrates the A-level fireproof insulation layer and the B-level insulation layer, and penetrates into the concrete structure layer. The formwork layer and the concrete structure layer are firmly tied together, eliminating the hidden danger of falling off. After pouring, the steel mesh frame composite fireproof insulation board and the concrete wall structure are connected into one, forming the effect of integration of thermal insulation and structure, as the wall of the wall. The outer insulation layer is no longer removed;

2. Solve the problem that the outer insulation layer is easy to catch fire and unsafe. Because a layer of A-level fireproof insulation layer is tightly attached to the outer side of the B-level insulation material layer, it has a good protective effect on the B-level insulation material layer and isolates it. The contact between the B-level thermal insulation material layer and the fire hazard and air improves the fire performance of the entire external thermal insulation formwork;

3. Solve the problem that the construction of the sandwich insulation wall is difficult and costly. The A-level fireproof insulation material has two functions, the function of the fire protection layer and the auxiliary insulation layer, and the outer protection layer of the sandwich structure is cast-in-place concrete with a thickness of more than 50 mm. Generally, the insulation effect is not calculated, and the overall thickness of the wall is also reduced. It can be understood in this way that the cast-in-place concrete slab is replaced by a lightweight A-grade fire-proof insulation layer. Compared with cast-in-place concrete slabs, the construction process is much simpler, the weight is much lighter than that of cast-in-place concrete slabs, the requirements for load-bearing structures are also low, and the corresponding joint methods are also simple, which greatly reduces the cost.

Description of drawings

Fig. 1 is the front structure schematic diagram of the utility model;

2 is a schematic diagram of the structure of the back of the utility model;

FIG. 3 is a schematic diagram of the connection structure between the utility model and the concrete wall.

The figure includes: 1. Steel mesh sheet layer, 2. The first layer of mesh cloth mortar, 3. A-grade fire-proof insulation layer, 4. Adhesive layer, 5. B-grade insulation material layer, 6. The first layer of mesh cloth mortar Second layer, 7, oblique insert steel wire layer, 8, structural layer and 9, leveling layer.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Figures 1 to 3, a steel wire mesh frame composite fireproof and thermal insulation outer formwork, including a steel mesh sheet layer 1, an obliquely inserted steel wire layer 7, a grade A fireproof and thermal insulation layer 3 and a grade B thermal insulation material layer 5. The steel mesh sheet Layer 1, the obliquely inserted steel wire layer 7, the A-level fireproof insulation layer 3 and the B-level thermal insulation material layer 5 are arranged in order from outside to inside. On the outer steel mesh layer 1, and the obliquely inserted steel wire layer 7 penetrates the first layer 2 of grid cloth mortar, A-level fireproof insulation layer 3, adhesive layer 4, B-level insulation material layer 5 and grid cloth in turn. The second layer 6 of mortar goes deep into the structural layer 8 of the concrete wall. In the construction of concrete buildings, the steel wire mesh frame composite fireproof insulation board is used as the outer formwork of the wall, which is fixed on the outer side of the concrete load-bearing wall reinforcement and the inner side of the reinforcement. Fix the inner formwork, fix it with tie bolts, and then pour concrete. Since the steel wire layer 7 is inserted obliquely into the concrete structure layer, the steel wire mesh frame composite fireproof insulation board and the concrete wall structure are connected into one, forming an integrated thermal insulation and structure. The effect is no longer removed and used as the external thermal insulation layer of the wall.

Further, in the embodiment of the present utility model, the A-grade fire-proof insulation layer 3 is closely attached to the inner side of the steel mesh layer 1, and the B-grade insulation material layer 5 is closely attached to the inner side of the A-grade fire-proof insulation layer 3. The outer side of the B-grade insulation material layer 5 is tightly attached with a layer of A-grade fireproof insulation layer 3, which has a good protective effect on the B-grade insulation material layer 5, and isolates the B-grade insulation material layer 5 from the contact with fire hazards and air. , which improves the fireproof performance of the entire external thermal insulation formwork, and solves the problem that the external thermal insulation layer is easy to catch fire and unsafe.

Further, in the embodiment of the present invention, a first layer 2 of mesh cloth mortar is arranged in the A-level fireproof and thermal insulation layer 3, and a second layer 6 of mesh cloth mortar is arranged in the B-level insulation material layer 5. , and the A-level fireproof insulation layer 3 and the B-level insulation material layer 5 are connected by the adhesive layer 4, which can disperse the shrinkage pressure and insulation stress of the surface layer, avoid stress concentration, and resist natural temperature and humidity changes and accidents. Surface cracking caused by impact.

Further, in the embodiment of the present invention, the steel mesh layer 1 is plastered as a leveling layer 9 .

Further, in the embodiment of the present invention, the steel mesh sheet layer 1 can be a corrosion-resistant woven mesh or welded mesh such as galvanized or spray-dipped plastic, stainless steel wire, etc.

Further, in the embodiment of the present utility model, the obliquely inserted steel wire layer 7 may adopt galvanized steel wire, spray-dipped steel wire, stainless steel wire and the like.

Further, in the embodiment of the present invention, the A-level fire-proof insulation layer 3 is rock wool board, foam glass ceramics or foamed concrete board, and it can also be other light-weight boards that reach A-level fire protection. Class A flame retardant material, on the other hand, also has a certain thermal insulation effect. The usual cast-in-place concrete slabs are replaced with three layers of lightweight Class A fire insulation layer. The material layers 5 are compounded together. Compared with cast-in-place, the construction process is much simpler, and the weight is much lighter than that of cast-in-place concrete slabs.

Further, in the embodiment of the present invention, the B-grade thermal insulation material layer 5 can be made of EPS board, graphite EPS board, extruded plastic board, graphite extruded plastic board, polyurethane board, phenolic board, etc. Organic material insulation board.

Working principle: When using the steel wire mesh frame composite fireproof and thermal insulation outer formwork, from the outside to the inside are the steel mesh sheet layer 1, the obliquely inserted steel wire layer 7, the A-level fireproof insulation layer 3 and the B-level insulation material layer 5, and the oblique insertion layer 5. The steel wire layer 7 is welded on the outermost steel mesh sheet layer 1 , penetrates the A-grade fireproof insulation layer 3 and the B-grade insulation material layer 5 , and penetrates into the structural layer 8 of the concrete wall. In the construction of concrete buildings, the steel wire mesh frame composite fireproof insulation board is used as the outer formwork of the wall, which is fixed on the outer side of the concrete load-bearing wall steel bars, and the inner side of the steel bars is fixed with the inner formwork, which is fixed with the tension bolts, and then concrete is poured. The steel wire layer 7 penetrates deep into the concrete structure layer 8, and the steel wire mesh frame composite fireproof insulation board is connected with the concrete wall structure to form an integrated effect of heat preservation and structure, which is no longer removed and used as the external heat preservation layer of the wall.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (7)

1. A steel wire mesh frame composite fireproof thermal insulation outer formwork, comprising a steel mesh sheet layer (1), an obliquely inserted steel wire layer (7), a grade A fireproof insulation layer (3) and a grade B thermal insulation material layer (5), characterized in that It consists in: the steel mesh sheet layer (1), the obliquely inserted steel wire layer (7), the A-level fireproof and thermal insulation layer (3) and the B-level thermal insulation material layer (5) are arranged in sequence from the outside to the inside, and the obliquely inserted steel wire layer (7) The oblique insertion wires are arranged at a certain interval, and are welded on the outermost steel mesh layer (1), and the oblique insertion steel wire layer (7) penetrates the first layer (2) of mesh cloth mortar in turn. , A-grade fire-proof insulation layer (3), adhesive layer (4), B-grade insulation material layer (5) and grid cloth mortar second layer (6), and go deep into the structural layer (8) of the concrete wall. 2. A steel wire mesh frame composite fireproof and thermal insulation outer formwork according to claim 1, characterized in that: the steel mesh sheet layer (1) is plastered as a leveling layer (9). 3. A steel wire mesh frame composite fireproof and thermal insulation outer formwork according to claim 1, characterized in that: the steel mesh sheet layer (1) adopts a stainless steel wire corrosion-resistant woven mesh. 4. A steel wire mesh frame composite fireproof and thermal insulation outer formwork according to claim 1, characterized in that: the steel mesh sheet layer (1) adopts welded mesh. 5. A steel wire mesh frame composite fireproof and thermal insulation outer formwork according to claim 1, characterized in that: the obliquely inserted steel wire layer (7) is made of galvanized steel wire. 6. A steel wire mesh frame composite fireproof and thermal insulation outer formwork according to claim 1, characterized in that: the obliquely inserted steel wire layer (7) can be made of sprayed steel wire. 7. A steel wire mesh frame composite fireproof and thermal insulation outer formwork according to claim 1, characterized in that: the obliquely inserted steel wire layer (7) adopts stainless steel wire.

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