CN2905936Y - Flame-retardant building block - Google Patents

Abstract

The utility model relates to a fire resistant building block, which is characterized in that the flexible or the hard elastic fire resistant solid materials constitute different geometries of the solid component. The formed solid component is a fire resistant piece or block or plate and their geometries are cubic, arc, wedge-shaped or any abnormal body. The utility model is extensively applied to the various sealing and plugging openings for the structures and the penetrating items to fight the fire and prevent the fire from spreading in buildings or various structures.

Description

Fire-retardant building block

Technical field:

The utility model relates to a kind of prevent to prolong the fire-block stem thing that burns engineering, particularly a kind of fire-retardant building block that is used for structural openings and runs through the thing sealing.

Background technology:

Norm of construction of present China or fire code all require the structural openings of building and run through the thing opening to carry out fire-block stem, to prevent spreading and the toxic gas diffusion of fire, with fire control within the specific limits, reduce causality loss.The structural openings of building is meant the various slits of body of wall (fire wall), floor, the interface, slit of beam, post, shock-resistant node, hole to be provideds etc. run through the thing opening and are meant formed slit or opening when the various pipelines of building, pipeline, airduct, electric wire, cable, cable tray etc. pass.These openings are prevented fires, and to handle for preventing that effectively the intensity of a fire and flue gas from spreading be crucial.Structural openings and to run through the plugging material that the fireproof blocking of thing sealing usually adopts be the back-fire relief bag, shape such as pillow also make back-fire relief rest the head on.The back-fire relief bag is with not firing or the anti-flammability cloth is constrained to the bag shape body of all size to materials (graininess or Powdered) such as fire-resistant, heat insulation and expanding materials, be piled into various forms so that opening is carried out fire-block stem according to opening when constructing.The back-fire relief bag can at high temperature expand and solidify, form a kind of heat insulation, every the sealant of cigarette, play heat insulation back-fire relief effect.For example, when using back-fire relief to seal stifled cable penetration hole, earlier cable in the hole is done necessary arrangement and arranged, then the back-fire relief bag is embedded in the space between cable and cable, cable and putty or floor, and requirement is filled closely knit as far as possible.

Though now the back-fire relief bag of Shi Yonging can reach the back-fire relief requirement of fire code defined to some opening, and has the advantage of substituting easily, because there are the following problems, application is very limited:

1. because the refractory material in the back-fire relief bag is a graininess, therefore do not have solid shape, very inconvenient when piling up, when practice of construction, its packing is also fragile, causes waste; And have the slit between bag and the bag, be difficult to reach and will run through the fire code requirement of the closely knit firm shutoff of thing opening;

2. run through the thing opening use back-fire relief seal stifled after because worm eats damaged by rats, often cause the breakage of back-fire relief collation package, refractory material runs off, thereby makes back-fire relief lose meaning;

3. because the refractory material in the back-fire relief bag uses intumescent material in a large number, so its weight is bigger, especially be applied to cable tray run through the shutoff of thing opening the time, the supporter that easily bends, using has certain limitation, inconvenience;

4. for large-scale opening, baroque hole, especially run through cable and cable bus-bar, be difficult to adopt the back-fire relief bag to realize shutoff.

Existing other shutoff modes adopt tubulose air bag, plugging block to combine modes such as shutoff with liquid foaming material in addition, and are open as Chinese patent application: 97106186.6, but all have defectives such as construction is inconvenient, use is restricted.

The utility model content:

The purpose of this utility model is to provide a kind of fire-retardant building block, seal stifled leakiness, construction inconvenience, cracky, range of application and defective such as limited to overcome traditional back-fire relief, have construct simple and convenient, shutoff tightly, not cracky, be widely used in advantages such as various openings, good flame retardation effect.

The purpose of this utility model realizes by following technical proposals: a kind of fire-retardant building block is characterized in that it being the formation solid spare with geometry that is made of gentle elasticity or the fire-retardant solid material of hard elastics.

Described formation solid spare is flame-resistant sheet or fire-retardant or fire-retardant plate;

Described formation solid spare is soft solid spare or hard solid spare;

The described geometry side's of being body or arc structure body or wedge body or other obform bodies;

Described gentle elastic flame solid material is by two kinds of Polyurethane materials of A, B mixed foaming and getting after adding the based carbon fiber flame-retardant system.

The utility model is owing to will soften elasticity and the fire-retardant solid material of hard elastics are made the formation solid spare with random geometry, promptly can make the formation solid spare of bulk or other shapes, therefore can be according to the needs of opening, opening is directly clogged in the fire-retardant building block of selecting to adapt with opening of solid shape, and compare construction with other measures such as the back-fire relief bag that does not have solid shape, tubulose air bags much simple and convenient; Owing to be solid members, can pile up by polylith during use, also very suitable for big opening, even big irregularly-shaped hole, also can in the middle of the side of using body, the edge uses obform body conveniently to pile up shutoff, and the utility model can on-site cutting become the geometry of various needs, owing to be gentle elastic solid (Hookean body), the leeway that extruding is arranged mutually, can form and closely piles up, so the utility model is of wide application generally, be applicable to various openings, and can tightly seal, owing to do not exist worm to eat damaged by rats, the utility model is cracky not, and application life can be long equally with building; Adopt fire-retardant solid material also to make the utility model good flame retardation effect.

The fire-retardant solid material of gentle elasticity of the present utility model or hard elastics adopts two kinds of Polyurethane materials of A, B mixed foaming and getting after adding the based carbon fiber flame-retardant system, and wherein A agent material is TDI, and described B agent material is MDI.According to the difference of expansion ratio, can make formation solid spare that is very soft or hard according to mould, to adapt to the needs of different shutoff conditions.

Description of drawings:

Fig. 1 is that the utility model is the schematic diagram of moulding cuboid;

Fig. 2 is to be the schematic diagram of moulding sheet for the utility model;

Fig. 3 is that the utility model is the schematic diagram of arc body;

Fig. 4 is that the utility model is the schematic diagram of wedge body.

The specific embodiment:

Below in conjunction with accompanying drawing the utility model is described further.

Embodiment 1:

Fig. 1 is the most frequently used shape of the utility model, i.e. rectangular configuration, and a similar fragment of brick because this shape is conveniently piled up, therefore can become the solid type spare of the most frequently used shutoff.Its manufacturing process is: with mixed foaming behind A, two kinds of Polyurethane liquid agent of the B material interpolation based carbon fiber flame-retardant system, wherein A agent material is TDI, and B agent material is MDI, and the preferred proportion of A, B agent material weight is 7: 4.Foaming process can directly carry out in the cuboid mould, and also can foam in foaming vessel gets after cut.According to the expansion ratio difference, can make the solid shape part of cuboid of gentle elasticity or hard elastics, its size dimension can also be made all size according to the needs of shutoff mouth, also can make the fragment of brick size, have unified dimensions, directly pile up at the scene, gentle elasticity of the utility model material and hard elastics have determined finished product also to have the performance of convenient cutting, can directly cut at the scene, realize on-the-spot structural openings and run through the thing opening carrying out tight shutoff with convenient.Therefore compare with the prior art of indefinite form, the utility model has very outstanding advantage in application: site operation is very convenient, uses very extensively, and shutoff is tight, and is not fragile, does not wear out and is destroyed by adverse circumstances.

The utility model that adopts said method and material to make also has following advantage: but shock-absorbing, shock-absorbing; The adding of based carbon fiber flame-retardant system simultaneously can make the shutoff product after the foaming have excellent flame-retardant, be embodied in: the utlity model has higher burning expansion multiplying power, can expand rapidly after promptly being heated and carbonization, do not produce to drip and hang down, and burn tight more more, can prevent effectively that the super effect back-fire relief that dense smoke, flame, hot gas and toxic gas diffusion spread from pressing down cigarette, cutting the fire spread function thereby have, expansion energy effectively blocks and runs through thing rapidly, avoids running through thing and transmits high thermal conductance and cause and prolong and other zones; Good heat-insulation effect, unexposed surface temperature only reach 80 degree, and good anti-ablation ability is arranged; Hazardous substances such as never halogen-containing and asbestos in the utility model, ultralow LD50 value is guaranteed environment, cigarette poison safety.The utility model is used for the requirement that shutoff can reach one-level back-fire relief grade fully.

Embodiment 2, see Fig. 2, and the utility model is the moulding sheet among Fig. 2, and its manufacturing materials and process just become sheet after moulding form or the cutting, to adapt to the shutoff needs that opening is long and narrow sealing as described in the embodiment 1.

Embodiment 3, see Fig. 3, and the utility model is for being arc body among Fig. 2, and its manufacturing materials and process and preceding two embodiment pass through the formed body of mould or cutting cost embodiment together at last, and present embodiment can conveniently be applied to the shutoff of pipeline opening.

Embodiment 4, see Fig. 4, and the utility model is the wedge body among Fig. 4, and its manufacturing materials and process by the formed body of mould or cutting cost embodiment, can be used for the shutoff that opening is a wedge at last with first three embodiment.

The Any shape solid members that adapts to opening be made or be cut into to the utility model also can by mould.

Claims (3)

1, a kind of fire-retardant building block is characterized in that it being the formation solid spare with geometry that is made of gentle elasticity or the fire-retardant solid material of hard elastics, and described formation solid spare is flame-resistant sheet or fire-retardant or fire-retardant plate.

2, fire-retardant building block according to claim 1 is characterized in that described formation solid spare is soft solid spare or hard solid spare.

3, fire-retardant building block according to claim 1 is characterized in that the described geometry side's of being body or arc structure body or wedge body.

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