CN209523662U - A kind of fire resistance steel door structure of fire-protection rating 2h - Google Patents

Abstract

The utility model relates to the fire resistance steel door structures of fire-protection rating 2h a kind of, including doorframe, door leaf；The cross section of doorframe is in towards "convex" shaped outstanding on the inside of doorframe, and doorframe has multilayer steel plates, and setting fire-proof plate is as thermal insulation layer between adjacent steel plate；Doorframe and door leaf are provided with fireproof expansion seal part along the vertical tongue and groove of current direction face；Channel steel is fixedly installed in the surrounding of the inside of door leaf, and door leaf central filler fire proofing material, interior outside is symmetrical arranged panel；Door leaf welds the side of hinge, is longitudinally being equipped with several pins, and when door leaf is closed, pin is inserted into the pin hole of doorframe.The utility model simplifies the Fireproof door structure of 2.0h fire-protection rating；Firmness when door leaf is closed can be improved in the setting of pin, and especially in fire resistance test, the thermal deformation resistant ability for improving door body has very great help.

Description

A kind of fire resistance steel door structure of fire-protection rating 2h

Technical field

The utility model relates to a kind of Fireproof door structure more particularly to a kind of fire resistance steel door structures of fire-protection rating 2h.

Background technique

Fire resistance steel door belongs to product type common in fire resistant doorsets product, according to the difference of technical indicator, is divided into heat-insulated Type and non-insulated type fire resistant doorsets.Interim heat insulation type fire resistant doorsets will reach the requirement of fire integrity and thermal insulation, fire resisting examination simultaneously The condition tested is more stringent, be opened in furnace with door leaf especially, door leaf be opened to outside furnace under two kinds of test conditions will by test bar Part difficulty is maximum.

The refractory ability that fire resistance steel door how is improved by structure design reaches the test of various fire resistance test conditions It is required that being urgent technical problem to be solved in the field.

Summary of the invention

The purpose of the utility model is to provide a kind of Fireproof door structures, by pointing out to carry out to door leaf, door body mutual cooperation Structure optimization is realized door leaf is opened in furnace, door leaf is opened to outside furnace under 2 kinds of experimental conditions, integrally meets fire integrity demands And thermal insulation reaches >=2.0h, simplifies the structure of 2.0h fire-protection rating fire resistant doorsets.

The utility model takes following technical scheme:

A kind of fire resistance steel door structure of fire-protection rating 2h, including doorframe 1, door leaf 2；The cross section of doorframe 1 is in towards door "convex" shaped outstanding on the inside of frame, doorframe 1 have multilayer steel plates, and setting fire-proof plate 103 is used as thermal insulation layer between adjacent steel plate；Door Frame 1 and door leaf are provided with fireproof expansion seal part 7 along the vertical tongue and groove of current direction face；The surrounding of the inside of door leaf 2 Channel steel 201 is fixedly installed, 2 central filler fire proofing material of door leaf, interior outside is symmetrical arranged panel；Door leaf welds the side of hinge, Several pins 6 are longitudinally being equipped with, when door leaf is closed, pin 6 is inserted into the pin hole of doorframe.

Further, the door leaf 2 is double door door leaf, and in the door leaf of double door at seam, the door leaf side for filling lock is equipped with Groove, inside grooves inlay fireproof expansion seal part 7.

Further, the non-hinge side of two door leafs of double door is designed with the seam of the lid for covering gap between door leaf Plate.

Further, hinge 3 is welded on doorframe 1 and door leaf 2.

Further, door skin is manufactured using 1mm thickness cold rolling hot dip galvanizing steel plate, and surrounding side is added using welding procedure Gu.

Further, the overlap joint size of upper door frame and door leaf 2 is greater than the amount of lap of munnion and door leaf.

Further, the flame resistant glass of light transmission, observation effect has been set on door leaf, or ventilation, gas exchange action have been set Fire shutter.

Further, door leaf 2 is connect by hinge 3 with doorframe 1, configuration fire prevention lockset 4, fire-proof door closer 5 on door leaf 2.

Further, the maximum opening angle of door leaf 2 is 180 °.

The utility model has the beneficial effects that:

1) door leaf, door body mutual cooperation are pointed out to carry out structure optimization；Simple for structure, technique is realisation good；

2) door leaf is opened in furnace, door leaf is opened to outside furnace under 2 kinds of experimental conditions, integrally meet fire integrity demands and every It is hot to reach >=2.0h, simplify the structure of 2.0h fire-protection rating door；

3) firmness when door leaf is closed can be improved in the setting of pin, especially in fire resistance test, for improving door The thermal deformation resistant ability of body has very great help.

4) the overlap joint size of upper door frame and door leaf is greater than the amount of lap of munnion and door leaf, and this structure design can be resistance to Effectively flame and flue gas is prevented to scurry out at the top of door leaf when fire test.

Detailed description of the invention

Fig. 1 is steel single open-type fire resistant doorsets overall schematic.

Fig. 2 is steel double-open type fire resistant doorsets overall schematic.

Fig. 3 is the transverse sectional view of single open-door.

Fig. 4 is the transverse sectional view of double door.

Fig. 5 is longitudinal sectional view.

Fig. 6 is the structural schematic diagram for configuring flame resistant glass and blinds of preventing fires.

Specific embodiment

The present invention will be further described in the following with reference to the drawings and specific embodiments.

The utility model is described in further detail with reference to the accompanying drawing.

As shown in Figure 1 and Figure 2, fire resistance steel door includes doorframe 1 and door leaf 2, and door leaf 2 is connect by hinge 3 with doorframe 1, door Configuration fire prevention lockset 4, fire-proof door closer 5 on fan 2.Door leaf 2 can be rotated towards 1 side of doorframe and be opened, and maximum opening angle is 180 °, see Fig. 3, Fig. 4.

Using the open side of door leaf 2 as front side, the doorframe 1 of " mouth " font is by left frame 101, the left frame 102 arranged vertically The upper side frame 103 for being arranged in top with horizontal cross is constituted.1 cross section of doorframe is double flute mouth structure, is in towards pleurapophysis in doorframe "convex" shaped out, as shown in figure 3, figure 4 and figure 5.

The cross section of doorframe 1 is in heat-insulating bridge-cut-off structure, and setting fire-proof plate 103 is used as thermal insulation layer between several layers of steel plates.

It is provided with fireproof expansion seal part 7 in the vertical tongue and groove of doorframe 1, as shown in Figure 3, Figure 4.

The inside circumference of door leaf 2 sets channel steel 201, improves the integral strength of door leaf, and referring to Fig. 3, door leaf central filler is a variety of Fire proofing material, interior outside are symmetrical arranged panel, see door leaf cross-sectional view in Fig. 5.In the door leaf of double door at seam, the door leaf side of lock is filled Side is equipped with groove, and inside inlays fireproof expansion seal part 7, sees Fig. 4, and the fire proof seal energy between two door leaf of double door can be improved Power.Referring to fig. 4, the non-hinge side of two door leafs of double door is designed with cover panel, plays the gap covered between door leaf, prevents fire The effect that flame and flue gas pass through.

Hinge 3 is connected on doorframe 1 and door leaf 2 using welding procedure, and welding realizes hinge and door leaf and doorframe Rigid connection, can be improved the integral strength of door body.Door skin is manufactured using 1mm thickness cold rolling hot dip galvanizing steel plate, surrounding side It is reinforced using welding procedure, it is ensured that the intensity of door leaf.

Referring to Fig. 3,4, the side of each door leaf welding hinge is longitudinally being equipped with 3 pins 6, when door leaf is closed, pin The pin hole of 6 insertion doorframes, can be improved firmness when door leaf is closed, especially in fire resistance test, for improving door body Thermal deformation resistant ability has very great help.

Referring to Fig. 5, the overlap joint size of upper ledge 103 and door leaf 2 is greater than the amount of lap of munnion 101,102 Yu door leaf, this Structure design effectively can prevent flame and flue gas from scurrying out at the top of door leaf in fire resistance test.

Referring to Fig. 6, it can according to need the flame resistant glass that light transmission, observation effect have been set on door leaf, also can be set It divulges information, the fire shutter of gas exchange action.

The utility model is pointed out to carry out structure optimization to door leaf, door body mutual cooperation；Simple for structure, technique is realisation good； Door leaf is opened in furnace, door leaf is opened to outside furnace under 2 kinds of experimental conditions, integrally meet fire integrity demands and thermal insulation reach >= 2.0h simplifies the structure of 2.0h fire-protection rating door；The setting of pin can be improved firmness when door leaf is closed, especially exist When fire resistance test, the thermal deformation resistant ability for improving door body has very great help；The overlap joint size of upper door frame and door leaf is greater than The amount of lap of munnion and door leaf, this structure design effectively can prevent flame and flue gas from altering at the top of door leaf in fire resistance test Out.

It is the preferred embodiment of the utility model above, those of ordinary skill in the art can also carry out respectively on this basis Kind of transformation improves, and under the premise of not departing from the utility model total design, these transformation or improves this reality all should belong to Within the scope of novel be claimed.

Claims (9)

1. a kind of fire resistance steel door structure of fire-protection rating 2h, it is characterised in that:

Including doorframe (1), door leaf (2)；

The cross section of doorframe (1) is in towards "convex" shaped outstanding on the inside of doorframe, and doorframe (1) has multilayer steel plates, adjacent steel plate Between setting fire-proof plate (103) be used as thermal insulation layer；

Doorframe (1) and door leaf are provided with fireproof expansion seal part (7) along the vertical tongue and groove of current direction face；

Channel steel (201) are fixedly installed in the surrounding of the inside of door leaf (2), and door leaf (2) central filler fire proofing material, interior outside is symmetrically set Set panel；Door leaf welds the side of hinge, is longitudinally being equipped with several pins (6), and when door leaf is closed, pin (6) is inserted into door In the pin hole of frame.

2. the fire resistance steel door structure of fire-protection rating 2h as described in claim 1, it is characterised in that: the door leaf (2) is double Enabling door leaf, in the door leaf of double door at seam, the door leaf side for filling lock is equipped with groove, and inside grooves inlay fireproof expansion seal part (7)。

3. the fire resistance steel door structure of fire-protection rating 2h as claimed in claim 2, it is characterised in that: two door leafs of double door Non- hinge side is designed with the cover panel for covering gap between door leaf.

4. the fire resistance steel door structure of fire-protection rating 2h as claimed in claim 2, it is characterised in that: hinge (3) is welded onto On doorframe (1) and door leaf (2).

5. the fire resistance steel door structure of fire-protection rating 2h as described in claim 1, it is characterised in that: door skin uses 1mm Thick cold rolling hot dip galvanizing steel plate manufacture, surrounding side is reinforced using welding procedure.

6. the fire resistance steel door structure of fire-protection rating 2h as described in claim 1, it is characterised in that: upper door frame and door leaf (2) Overlap joint size be greater than the amount of lap of munnion and door leaf.

7. the fire resistance steel door structure of fire-protection rating 2h as described in claim 1, it is characterised in that: be arranged on door leaf The flame resistant glass that light, observation act on, or the fire shutter of ventilation, gas exchange action has been set.

8. the fire resistance steel door structure of fire-protection rating 2h as described in claim 1, it is characterised in that: door leaf (2) passes through hinge (3) it is connect with doorframe (1), configuration fire prevention lockset (4), fire-proof door closer (5) on door leaf (2).

9. the fire resistance steel door structure of fire-protection rating 2h as described in claim 1, it is characterised in that: door leaf (2) is maximum to be opened Angle is 180 °.