CN204371047U - A kind of three anti-fire resistance steel doors - Google Patents

Abstract

The utility model discloses a kind of three anti-fire resistance steel doors, comprise door leaf, doorframe and hinge, described door leaf comprises framework and inorganic fire core material plate, and this door leaf and doorframe are combined together by two bridging arrangements; Wherein: described first bridging arrangement comprises first protruding and the first groove, described second bridging arrangement comprises second protruding and the second groove; When door leaf is in closed condition, door leaf entirety is positioned at doorframe, and the first projection and the second projection lay respectively in the first groove and the second groove; When door leaf cuts out, the gap between the first projection on the panel doorframe of door leaf and the gap between the second groove and the second projection are closed by fire prevention Expansion sealing adhesive tape.The utility model has good bulk strength, good soundproof effect, good anti-theft effect, greatly can improve the safety factor of security door.

Description

A kind of three anti-fire resistance steel doors

Technical field

The utility model relates to a kind of labeled door, particularly relates to a kind of three anti-fire resistance steel doors.

Background technology

Fire resistance steel door is primarily of doorframe and door leaf two parts composition, within 2008, the new edition standard GB12955-2008 of labeled door has drafted in the Ministry of Public Security, new standard specifies that filling out core material in labeled door must not use the fiber that can not degrade as labeled door core material, and therefore current labeled door core material adopts pearlite slab mostly; But because the adhesion strength of pearlite slab self is poor, easy uncoupling after boning with steel plate, the factors such as the distortion of steel-sheet machining deformation, heat and collision deformation, not firm and solid with pearlite slab bonding all the time, directly affect the overall performance of labeled door.

And the fire resistance steel door doorframe that individual layer steel plate is processed into is when breaking out of fire, because the coefficient of thermal conductivity of steel is large, the temperature rise of carrying on the back fiery face is fast, does not reach the performance requirement of labeled door; The later intensity of individual layer steel plate machine-shaping is weak, and fireproof door frame is easily out of shape; The door leaf of fire resistance steel door adds pearlite slab bonding by upper and lower two layers of thin steel plate and forms, because steel-sheet plasticity is stronger, very easily be out of shape in process or after preheating, therefore the bonding of steel sheet and pearlite slab does not reach labeled door requirement, if and be subject to the collision of external force, also easily produce pearlite slab and panel uncoupling, do not reach fire protection requirement.

Utility model content

For prior art above shortcomings, the purpose of this utility model is to provide a kind of three anti-fire resistance steel doors, has good bulk strength, good soundproof effect, good anti-theft effect, greatly can improve the safety factor of security door.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is such: a kind of three anti-fire resistance steel doors, comprise door leaf, doorframe and hinge, the side of door leaf by hinge and doorframe hinged; It is characterized in that: described door leaf comprises framework and is filled in the inorganic fire core material plate in framework, and this door leaf and doorframe are combined together by two bridging arrangements; Wherein:

Described first bridging arrangement comprises the first projection be located on a side of door leaf and door frame contact, with be located at side that doorframe contacts with door leaf and with first protruding the first corresponding groove, described first projection is positioned at door leaf near the hinged side of itself and doorframe, and this first projection is positioned near door skin place; Described second bridging arrangement comprises the two sides of being located at door leaf and door frame contact and protruding near second of door leaf backboard side, and is located at the side second groove corresponding with the second projection that doorframe contacts with door leaf; When door leaf is in closed condition, door leaf entirety is positioned at doorframe, and the first projection and the second projection lay respectively in the first groove and the second groove;

In the first protruding side near door skin, and door leaf is equipped with fire prevention Expansion sealing adhesive tape away from the second groove of hinged side near the side of door leaf backboard; When door leaf cuts out, the gap between the first projection on the panel doorframe of door leaf and the gap between the second groove and the second projection are closed by fire prevention Expansion sealing adhesive tape.

Further, described framework and doorframe are by composite steel plate punch forming, and described composite steel plate comprises the first steel plate, the second steel plate and the cementing agent between the first steel plate and the second steel plate, and the first steel plate and the second steel plate are tightened together by this cementing agent.

Further, between door leaf upper end and doorframe upper end, also fire-proof door closer is provided with.

Compared with prior art, the utility model tool has the following advantages:

1, can increase bulk strength and the anti-impact force of labeled door, during breaking out of fire, entirety is not yielding; There is good bulk strength, good soundproof effect, good heat insulation effect, greatly can improve the safety factor of security door.

2, have employed composite steel plate, the coefficient of heat insulation of composite steel plate is≤10.2W/(M.K), the rupture strength of composite steel plate is >=1.2MPa, and flexural strength is >=0.8MPa; Composite metal plate fireproof performance reaches national B2 grade standard; Use composite metal plate, owing to being double-layer plate, centre has high strength to meet cementing agent separately, and make coefficient of thermal conductivity low, can reach fire-proof and thermal-insulation requirement, and the intensity of composite metal plate is large, fireproof door frame is not yielding.

3, three anti-effects are obvious, antitheft aspect, and doorframe adopts the whole damascene structures of door leaf, and is combined together by two bridging arrangements, enables door leaf pick-proof, and adopt metal composite steel plate, anti-theft function is very remarkable; Fire-proof and thermal-insulation aspect, because door body is made up of composition metal steel plate, is filled with anti-fire door core board in door leaf, doorframe door leaf groove is embedded with fire-proof expansion seal strip, effectively can prevent naked light and flue gas diffusion, prevent fire spreading, and effective heat-blocking action can be played; Noise-proofing aspect, because door body adopts composite double layer metal foil to make, have fire-proof and thermal-insulation anti-fire door core board in door body, add the buffer action of fire-proof expansion seal strip, soundproof effect is obvious.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 be in Fig. 1 local along A-A to sectional view.

In figure: 1-door leaf, 11-framework, 12-inorganic fire core material plate, 2-doorframe, 3-hinge, the 4-the first bridging arrangement, the 5-the second bridging arrangement, 6-fire prevention Expansion sealing adhesive tape, 7-fire-proof door closer.

Detailed description of the invention

Below in conjunction with drawings and Examples, the utility model is described in further detail.

Embodiment: see Fig. 1, Fig. 2, a kind of three anti-fire resistance steel doors, comprise door leaf 1, doorframe 2 and hinge 3, described framework 11 and doorframe 2 are by composite steel plate punch forming, described composite steel plate comprises the first steel plate, the second steel plate and the cementing agent between the first steel plate and the second steel plate, and the first steel plate and the second steel plate are tightened together by this cementing agent; Make door leaf 1 higher with the overall construction intensity of doorframe 2, stability is better, effectively can avoid door leaf 1 and doorframe 2 temperature distortion.The side of door leaf 1 is hinged by hinge 3 and doorframe 2; This hinge 3 adopts hinge for fireproof 3, makes fireproof performance better.Between door leaf 1 upper end and doorframe 2 upper end, be also provided with fire-proof door closer 7, when fire occurs, door leaf 1 can cut out by this fire-proof door closer 7 fast, thus avoids fire spreading.The inorganic fire core material plate 12 that described door leaf 1 comprises framework 11 and is filled in framework 11, described inorganic fire core material plate 12 is prior art, researched and developed and patent applied for (patent No. is 201110229683.4) by the applicant, this kind of inorganic fire core material version is adopted to combine with door leaf 1 framework 11, the effect of fire-proof and thermal-insulation can be played better, thus improve fireproof performance further.

This door leaf 1 is combined together by two bridging arrangements with doorframe 2.Wherein:

Described first bridging arrangement 4 comprises that to be located on a side that door leaf 1 contacts with doorframe 2 first protruding, with be located at side that doorframe 2 contacts with door leaf 1 and with first protruding the first corresponding groove, described first projection is positioned at door leaf 1 near the hinged side of itself and doorframe 2, and this first projection is positioned near door leaf 1 panel place; Described second bridging arrangement 5 comprises is located at two sides that door leaf 1 contacts with doorframe 2 and protruding near second of door leaf 1 backboard side, and is located at the side second groove corresponding with the second projection that doorframe 2 contacts with door leaf 1; When door leaf 1 is in closed condition, door leaf 1 entirety is positioned at doorframe 2, and the first projection and the second projection lay respectively in the first groove and the second groove; By twice overlap joint, thus make the gap between door leaf 1 and doorframe 2 tortuous, and stroke increases, and effectively can not only play anti-theft function, and cigarette, the fiery time passed from this gap can be extended, thus improve flameproof effect further.

In the first protruding side near door leaf 1 panel, and door leaf 1 is equipped with fire prevention Expansion sealing adhesive tape 6 away from the second groove of hinged side near the side of door leaf 1 backboard; When door leaf 1 cuts out, the gap between the first projection on the panel doorframe 2 of door leaf 1 and the gap between the second groove and the second projection are closed by fire prevention Expansion sealing adhesive tape 6; Effectively can prevent naked light and flue gas diffusion, prevent fire spreading, and effective heat-blocking action can be played.Because door body adopts composite double layer metal foil to make, have fire-proof and thermal-insulation anti-fire door core board in door body, add the buffer action of fire-proof expansion seal strip, soundproof effect is obvious.

Finally it should be noted that, above embodiment is only in order to illustrate the technical solution of the utility model but not restriction technologies scheme, those of ordinary skill in the art is to be understood that, those are modified to the technical solution of the utility model or equivalent replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of right of the present utility model.

Claims (3)

1. three anti-fire resistance steel doors, comprise door leaf, doorframe and hinge, the side of door leaf by hinge and doorframe hinged; It is characterized in that: described door leaf comprises framework and is filled in the inorganic fire core material plate in framework, and this door leaf and doorframe are combined together by two bridging arrangements; Wherein:

Described first bridging arrangement comprises the first projection be located on a side of door leaf and door frame contact, with be located at side that doorframe contacts with door leaf and with first protruding the first corresponding groove, described first projection is positioned at door leaf near the hinged side of itself and doorframe, and this first projection is positioned near door skin place; Described second bridging arrangement comprises the two sides of being located at door leaf and door frame contact and protruding near second of door leaf backboard side, and is located at the side second groove corresponding with the second projection that doorframe contacts with door leaf; When door leaf is in closed condition, door leaf entirety is positioned at doorframe, and the first projection and the second projection lay respectively in the first groove and the second groove;

In the first protruding side near door skin, and door leaf is equipped with fire prevention Expansion sealing adhesive tape away from the second groove of hinged side near the side of door leaf backboard; When door leaf cuts out, the gap between the first projection on the panel doorframe of door leaf and the gap between the second groove and the second projection are closed by fire prevention Expansion sealing adhesive tape.

2. a kind of three anti-fire resistance steel doors according to claim 1, it is characterized in that: described framework and doorframe are by composite steel plate punch forming, described composite steel plate comprises the first steel plate, the second steel plate and the cementing agent between the first steel plate and the second steel plate, and the first steel plate and the second steel plate are tightened together by this cementing agent.

3. a kind of three anti-fire resistance steel doors according to claim 1, is characterized in that: between door leaf upper end and doorframe upper end, be also provided with fire-proof door closer.