CN201850665U - Thermal-insulation fireproof isolation strip - Google Patents

Abstract

The utility model relates to a thermal insulation and fireproof isolation belt, which comprises two cement fiber boards placed in parallel, rock wool is sandwiched between the two cement fiber boards, fixed by a number of bolts, and the side formed by the two cement fiber boards and rock wool is passed through a waterproof sealing material Sealing; the bolt includes a screw rod with a wide top at the head end, a nut sleeved at the installation end, and four gaskets and sleeves are set between the nut and the wide top, and two gaskets are set as a group. At both ends of the casing, the pipe diameter of the casing is larger than the hole diameter of each gasket; after the isolation belt is formed, the two gaskets of each group are respectively located on the inner and outer sides of the cement fiber board. The waterproof sealing material can be one of polymer waterproof mortar glass fiber mesh cloth, cement-based waterproof paint, and aluminum foil mesh cloth tape. According to different installation methods, the gasket at the installation end should be a flat gasket, "Z" type or "U" type gasket. This utility model is not only suitable for various new construction projects, but also suitable for wall and roof fireproofing and heat preservation of renovation projects. .

Description

A thermal insulation and fireproof isolation belt

technical field

The utility model relates to a thermal insulation and fireproof isolation belt for buildings.

Background technique

In recent years, due to the occurrence of many building insulation fires, the fire performance of insulation materials has also attracted great attention from all walks of life in the industry. However, many fires of insulation materials occur during the construction process, such as electric welding, open flames, and bad construction habits. These materials continuously produce molten droplets and toxic smoke during the combustion process, and at the same time release gases such as chlorofluorocarbons, hydrofluorocarbons, and freons, which are harmful to the environment and cannot be ignored. For this reason, the Ministry of Housing and Urban-Rural Development and the Ministry of Public Security jointly issued the "Interim Regulations on Fire Protection of Civil Building External Thermal Insulation System and External Wall Decoration" on September 25, 2009. This regulation requires the installation of fire barriers for the exterior walls of non-curtain wall buildings, exterior walls of curtain wall buildings, and roofs.

Up to now, building fire isolation belts are made of some A-level fireproof materials such as composite rock wool, foamed cement, foamed concrete, and phenolic foam.

Contents of the invention

In order to solve the above-mentioned problems of building fire prevention and heat preservation, the purpose of this utility model is to provide a heat preservation and fireproof isolation belt, which adopts a composite rock wool structure, which can not only meet the requirements of heat preservation and energy saving, but also meet the requirements of fire prevention.

In order to achieve the above object, the utility model adopts the following technical solutions: a thermal insulation and fireproof isolation belt, which is characterized in that it includes two cement fiber boards placed in parallel, rock wool is sandwiched between the two cement fiber boards, and the two cement fiber boards It is connected with the large plane of rock wool by several bolts, and the sides formed by the two cement fiber boards and rock wool are sealed by waterproof sealing materials; the bolts include a screw with a wide top at the head end of the screw, and nuts are sleeved at the screw installation end , between the nut and the broad top, four gaskets and sleeves are sleeved, wherein every two gaskets form a group and are arranged at both ends of the sleeve, and the diameter of the sleeve is larger than the aperture of each gasket; After the isolation belt is formed, the two gaskets of each group are respectively located on the inner and outer sides of the cement fiber board to clamp the cement fiber board.

The waterproof sealing material is one of polymer waterproof mortar glass fiber mesh cloth, cement-based waterproof paint, and aluminum foil mesh cloth tape.

The four gaskets are all flat gaskets, and the screw rod is lengthened, and two nuts are sheathed side by side on it.

The gasket near the outer side of the mounting end of the screw rod is one of "Z" shape and "U" shape.

The length of the casing is equivalent to the compressed thickness of the rock wool. The casing is round or square.

According to different installation methods, when the isolation strip is attached to the structural wall, the gasket near the installation end of the screw rod is a flat gasket. When the isolation strip is poured together with the structural wall, the gasket near the mounting end of the screw is in a "Z" or "U" shape, or one more nut is added at the mounting end of the screw.

Due to the adoption of the above technical scheme, the utility model has the following advantages: 1. The utility model adopts two cement fiber boards to interpose rock wool to form. Excellent heat insulation performance, thermal conductivity ≤ 0.044W/(m.k), water absorption ≤ 5%, water repellency ≥ 98.0%, and also has excellent fire resistance. Cement fiberboard is a cement-based inorganic material, which has a good affinity with cement-based walls, so the connection is tight and firm. 2. The two layers of cement fiberboard and rock wool are connected by steel bolts. Gaskets and sleeves are added to the bolts and cement fiberboard to increase the stress area, so that the structure of the isolation belt has strong tensile strength, The compressive strength lays a solid foundation for improving the resistance to negative wind pressure. 3. There are many types of steel bolts. By changing the shape of the outer gasket, it can be adapted to the surface-mounted thermal insulation wall, and can also be adapted to the large-scale built-in thermal insulation wall. 4. The perimeter of the isolation zone is sealed with polymer waterproof mortar glass fiber mesh cloth, or cement-based waterproof paint, or aluminum foil mesh cloth tape, which can not only prevent fire, waterproof but also make it easy for workers to operate and avoid the intrusion of rock wool . 5. The cement fiberboard is a high-strength cement fiberboard, which can meet the strength requirements of various finishes on the base. 6. Because rock wool has the defect of being easy to absorb water and cause mildew, this utility model adopts the method of completely wrapping rock wool, avoiding the contact between rock wool and air, and the rock wool used is waterproof, so this utility model is It utilizes the advantages of rock wool for heat preservation and fire prevention, and avoids the defect that rock wool is easy to absorb water. The utility model is not only suitable for various newly built projects, but also suitable for the heat preservation of walls and roofs of renovation projects. Especially for buildings with high fire protection requirements, it is an ideal thermal insulation product.

Description of drawings

Fig. 1 is a schematic diagram of the appearance of the utility model;

Fig. 2 is a schematic sectional view of the structure of the utility model;

Fig. 3 is the utility model bolt schematic diagram;

Fig. 4 is a schematic diagram of the utility model and the external attachment of the wall;

Fig. 5 is one of the built-in schematic diagrams of the utility model and the wall large mold;

Fig. 6 is the second schematic diagram of the utility model and the built-in wall large mold;

Fig. 7 is the third schematic diagram of the utility model and the built-in wall large mold.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the utility model is described in detail.

The so-called isolation strip in the building standard refers to the continuous construction of several isolation strip monomers. Therefore, although the utility model is named after the isolation strip, the essence is as an introduction with the isolation strip monomer (as shown in Figure 1).

As shown in Figure 2, the isolation belt is a plate-shaped structure, because the utility model aims to use non-combustible materials as the insulation layer, and at the same time use non-combustible materials as the protective layer of the insulation layer, therefore, the utility model selects a class A non-combustible material -Rock wool 1 is used as the insulation layer of the fire isolation belt; a high-strength and weather-resistant grade A non-combustible material-cement fiber board 2 is selected as the protective layer of the large plane of the isolation belt; a waterproof sealing material 3-polymer waterproof mortar glass is selected Fiber mesh or cement-based waterproofing paint or aluminum foil mesh tape as a protective layer on the side of the barrier.

Rock wool 1 can also be replaced with mineral wool or glass wool, thermal conductivity ≤ 0.044W/(m.k), water absorption ≤ 5%, water repellency ≥ 98.0%. The cement fiber board 2 is arranged as two pieces, placed in parallel, and the rock wool 1 is sandwiched between the two boards, and the cement fiber board 2 is used as a protective layer for the large plane of the rock wool 1. During installation, one side of the cement fiber board 2 is connected with the structural wall, and the other side is used as the base layer of the facing layer. The two cement fiber boards 2 and the rock wool 1 are connected by steel bolts 4. According to the standard, at least 6 bolts are evenly arranged on the large plane of a standard board.

Although rock wool 1 has the advantages of fire prevention, heat preservation and heat insulation, rock wool has the disadvantages of easy water absorption and low tensile and compressive strength. The four sides of the isolation zone composed of rock wool 1 (because the rock wool has a certain thickness, so the sides are formed naturally), are sealed with a waterproof sealing material 3, and the waterproof sealing material 3 is bonded between two fiberboards 2 to seal the rock wool Cover up.

Bolt 4 is a special bolt among the utility model, and as shown in Figure 3, it comprises a screw rod 41 and a nut 42, and the head end (non-threaded end) of screw rod has broad top 43, also has between nut 42 and broad top 43 Four gaskets 44 and sleeves 45 are sleeved, and two of the four gaskets are arranged as a group at both ends of the sleeve; the sleeve 45 is a high-strength metal sleeve, which can be a circular tube or It is a square tube with a diameter larger than the hole diameter of the gasket. When the bolt 4 passes through the cement fiber board 2 and the rock wool 1, the two gaskets of each group are respectively located on the inner and outer sides of the cement fiber board 2, and the cement fiber board 2 is clamped. A casing 45 is added between the two gaskets inside the two cement fiber boards to support the rock wool 1, and the length of the casing 45 is generally equivalent to the compressed thickness of the rock wool. After the bolts 4 are tightened, two sets of gaskets respectively lean against the corresponding cement fiber boards, and the outer gaskets are respectively restricted by the nut 42 and the wide top 43 of the screw rod. Gaskets are clamped separately, which increases the connection force of the two layers of cement fiber boards 2, thereby further enhancing the compressive and tensile strength of the utility model; To support the role of rock wool.

In order to make the isolation belt of the utility model not only adapt to the external heat preservation structure, but also adapt to the large-scale built-in heat preservation structure, when the building structure is the external heat preservation, the four gaskets 44 sleeved on the bolt 4 are all Plane type, when the isolation belt is bonded to the base wall, the installation end of the screw is flattened, and the polymer adhesive mortar is used for full adhesion (as shown in Figure 4); when the building structure is a large-scale built-in insulation, the following aspects Two forms are optional: 1) Several gaskets 44 are plane type, lengthen the length of the installation end of the screw rod, that is, lengthen the length of the threaded end of the screw rod, and then set a nut 42 on the screw rod, so that the two nuts 42 at the installation end are all in the concrete (as shown in Figure 5); 2) a gasket 44 near the outside of the screw rod installation end is a "Z" or "U"-shaped structure, so that the gasket extends into the interior of the concrete (as shown in Figures 6 and 7) .

During installation, the utility model has two installation methods:

1. For the thin plastering system of externally attached insulation boards, the utility model is manufactured in the form shown in Figure 4, the ends of the bolts are ground flat, and polymer adhesive mortar is used to paste the product on the outer wall according to the design requirements. .

2. For the built-in thermal insulation system of the large mold, the utility model is made into the form shown in Figures 5, 6, and 7. First, the pre-embedded end of the bolt is bound to the steel bar with fire-burned wire, and then integrally cast and formed.

Rock wool is a grade A waterproof non-combustible thermal insulation material. It is not only light in weight, but also has low water absorption performance and excellent thermal insulation performance. , but also has non-combustible properties. The cement fiber board 2 is a cement-based inorganic material, which has a good affinity with the cement-based wall, so that the connection is tight and firm.

The above-mentioned embodiments are only used to illustrate the utility model, wherein the structure and connection mode of each component can be changed, and any equivalent transformation and improvement carried out on the basis of the technical solution of the utility model should not be excluded. Outside the scope of protection of the present utility model.

Claims (10)

1. A thermal insulation and fireproof isolation belt is characterized in that: it comprises two cement fiber boards placed in parallel, rock wool is sandwiched between the two cement fiber boards, and the two cement fiber boards are connected with rock wool large planes by several bolts , the side surfaces formed by the two cement fiberboards and rock wool are sealed by a waterproof sealing material; The bolt includes a screw rod with a broad top at the head end of the screw rod. A nut is sheathed at the mounting end of the screw rod, and four gaskets and sleeves are set between the nut and the broad top, wherein every two gaskets are arranged as a group. At both ends of the sleeve, the diameter of the sleeve is larger than the aperture of each gasket; after the isolation zone is formed, each set of the two gaskets are respectively located on the inner and outer sides of the cement fiber board to clamp the cement fiber board. 2. A thermal insulation and fireproof isolation belt as claimed in claim 1, characterized in that: the waterproof sealing material is one of polymer waterproof mortar glass fiber mesh cloth, cement-based waterproof paint, and aluminum foil mesh cloth tape. 3. A thermal insulation and fireproof isolation belt according to claim 1 or 2, characterized in that: the four gaskets are all flat gaskets, and two nuts are arranged side by side on the screw rod. 4. A thermal insulation and fireproof isolation belt as claimed in claim 1 or 2, characterized in that: the gasket on the outer side near the installation end of the screw rod is one of "Z" shape and "U" shape. 5. A thermal insulation and fireproof isolation belt according to claim 1 or 2, characterized in that: the length of the casing is equivalent to the compressed thickness of rock wool. 6. A thermal insulation and fireproof isolation belt as claimed in claim 3, characterized in that: the length of the casing is equivalent to the compressed thickness of rock wool. 7. A thermal insulation and fireproof isolation belt as claimed in claim 4, characterized in that: the length of the casing is equivalent to the compressed thickness of rock wool. 8. A thermal insulation and fireproof isolation belt according to claim 1 or 2, characterized in that: the casing is one of round or square casing. 9. A thermal insulation and fireproof isolation belt as claimed in claim 5, characterized in that: the casing is one of round or square casing. 10. A thermal insulation and fireproof isolation belt according to claim 6 or 7, characterized in that: the casing is one of round or square casing.

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