CN212507979U - Double-open smoke-proof fireproof door - Google Patents
Double-open smoke-proof fireproof door Download PDFInfo
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- CN212507979U CN212507979U CN202020795447.3U CN202020795447U CN212507979U CN 212507979 U CN212507979 U CN 212507979U CN 202020795447 U CN202020795447 U CN 202020795447U CN 212507979 U CN212507979 U CN 212507979U
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Abstract
The utility model discloses a two divisions of smoke protection and fire prevention doors relates to and prevents fire door technical field. The technical key points are as follows: the fireproof door comprises a door frame, a left door leaf, a right door leaf and a fireproof hinge, wherein a first clamping groove is formed in a lap joint surface of the door frame, facing one side of the left door leaf and one side of the right door leaf, and a second clamping groove is formed in a matching surface of the door frame, facing the left door leaf and the right door leaf; a first fireproof expansion sealing strip is arranged in the first clamping groove, a first heat-resistant sealing strip is arranged in the second clamping groove, the first heat-resistant sealing strip comprises a clamping portion and a sealing portion, the clamping portion is connected or attached to the first fireproof expansion sealing strip, and an included angle between the bisection plane of the sealing portion and the first fireproof expansion sealing strip is 45 degrees; and a second fireproof expansion sealing strip is arranged on one side face or two side faces of the left door leaf and the right door leaf which are opposite, and a second heat-resistant sealing strip is arranged on one side of the left door leaf and the right door leaf which are opposite. The utility model has the advantages of the linking of cold cigarette and hot cigarette is sealed, the leakproofness is improved and the security has been realized.
Description
Technical Field
The utility model belongs to the technical field of prevent fire door technique and specifically relates to a two divisions of smoke protection and fire prevention doors is related to.
Background
A fire door is a door that can meet the requirements of fire stability, integrity and thermal insulation within a certain period of time. It is a fire-proof partition with certain fire resistance, which is arranged in fire-proof subareas, evacuation staircases, vertical shafts and the like. The fireproof door has the functions of a common door, has the functions of preventing the fire from spreading and the smoke from diffusing, and can prevent the fire from spreading within a certain time to ensure the evacuation of people.
As shown in fig. 12, the sealing structure of the fire door in the prior art includes a door frame 1, and a left door leaf 2 and a right door leaf (omitted in the figure) hinged to the door frame 1, and a second fire-resistant intumescent sealing strip 11 is bonded to four sides of the left door leaf 2 facing the door frame 1.
The above prior art solution has the following drawbacks: the fireproof expansion sealing strip can expand only when the temperature reaches the high temperature above the expansion temperature (about 180 ℃) so as to seal gaps, but when the temperature is below the expansion temperature (about 180 ℃), cold smoke cannot be prevented from spreading only by the fireproof expansion sealing strip, once human skin directly contacts smoke with the temperature exceeding 100 ℃, the smoke can be seriously damaged after a few minutes, and the smoke contains various toxic components, so that people are easy to suffocate, and therefore, the smoke-proof sealing performance of the structure is poor.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a two divisions of smoke protection and fire door, it has both can the smoke protection can prevent fires, improves the advantage of fire safety nature again.
The above object of the present invention can be achieved by the following technical solutions:
a double-opening smoke-proof fireproof door comprises a door frame, a left door leaf and a right door leaf, wherein a fireproof hinge is arranged between one side, away from each other, of the left door leaf and the right door leaf and the door frame;
a first fireproof expansion sealing strip is arranged in the first clamping groove, a first heat-resistant sealing strip is arranged in the second clamping groove, the first heat-resistant sealing strip comprises a clamping portion and a sealing portion, the clamping portion is connected or attached to the first fireproof expansion sealing strip, and an included angle between the bisecting surface of the sealing portion and the first fireproof expansion sealing strip is 45 degrees;
and a second fireproof expansion sealing strip is arranged on one side surface or two side surfaces of the left door leaf and the right door leaf which face each other, a second heat-resistant sealing strip is arranged on one side of the left door leaf and the right door leaf which face each other, and the second heat-resistant sealing strip is positioned between the gap of the left door leaf and the gap of the right door leaf.
Through adopting above-mentioned technical scheme, during the installation, with first fire prevention inflation sealing strip and first draw-in groove elastic clamping, with joint portion and second draw-in groove elastic clamping, when closing the door, the sealing stress direction of four sealing strips is different, the sealing that is close to the first heat-resisting sealing strip on hinge limit is located the gap between left door leaf or right door leaf and the second framework, left door leaf, the sealing of the first heat-resisting sealing strip on right door leaf upper and lower limit is located the gap between left door leaf or right door leaf and the door frame, consequently, the contained angle between bisector of sealing and the fire prevention inflation sealing strip must be 45.
The gap between the left door leaf and the right door leaf is sealed by a second heat-resistant sealing strip, and the sealing effect can be achieved before the smoke temperature exceeds the limit of the heat-resistant sealing strip; when the temperature reaches more than 180 ℃, the first fireproof expansion sealing strip and the second fireproof expansion sealing strip start to expand and seal, double sealing is achieved, connection sealing of cold smoke and hot smoke (more than 180 ℃) is achieved, and sealing performance and safety are improved.
The present invention may be further configured in a preferred embodiment as: the inside extrusion hole of having seted up along its length direction of joint portion.
By adopting the technical scheme, the extrusion hole has two functions, on one hand, when the clamping part is installed, the clamping part can be deformed without applying large force, and the clamping part is convenient to install; on the other hand, on the premise of ensuring the sealing function, the material consumption can be reduced, and the cost is reduced.
The present invention may be further configured in a preferred embodiment as: the heat-resistant sealing strip comprises a left door leaf and a right door leaf, wherein clamping plates are arranged on one opposite side edge or two opposite side edges of the left door leaf and the right door leaf in the length direction, the second heat-resistant sealing strip comprises a connecting portion and an elastic portion, the elastic portion is connected with the outer wall of the connecting portion, a third clamping groove is formed in the outer wall of the connecting portion, and the side face, located at one end of the second fireproof expansion sealing strip, of the left door leaf or the right door.
Through adopting above-mentioned technical scheme, cardboard and third draw-in groove elastic clamping, the heat-resisting sealing strip of easy to assemble second makes it be difficult for droing moreover, and when the door leaf was closed, the elastic component made the gap between left door leaf and the right door leaf remain sealed throughout, can block stretching of cold cigarette.
The present invention may be further configured in a preferred embodiment as: the left door leaf and the right door leaf are arranged on the left door frame or the right door frame in a sleeved mode, the elastic portion is arranged between the left door leaf and the right door leaf in a clamped mode, and one end of the clamping plate is connected with the inner side wall of the.
Through adopting above-mentioned technical scheme, on the one hand, the lid seam limit plays the effect of protection elastic component, and on the other hand, the lid seam limit makes elastic component hug closely the door frame all the time, improves the leakproofness.
The present invention may be further configured in a preferred embodiment as: the cross section of the elastic part is circular or oval, and a deformation hole is formed in the elastic part along the length direction of the elastic part.
By adopting the technical scheme, the deformation hole has two functions, on one hand, when the door is closed, the elastic part can be deformed without applying great force, and the gap between the door frame and the door leaf is sealed; on the other hand, on the premise of ensuring the sealing function, the material consumption can be reduced, and the cost is reduced.
The present invention may be further configured in a preferred embodiment as: the second heat-resistant sealing strip comprises a connecting portion and an elastic portion, the elastic portion is connected with the outer wall of the connecting portion, a connecting groove is formed in one side face or two side faces, opposite to the left door leaf and the right door leaf, of the left door leaf or the right door leaf along the length direction of the left door leaf and the right door leaf, the connecting portion is connected with the connecting groove in a matched mode, and the elastic portion is abutted to the left door leaf or the.
Through adopting above-mentioned technical scheme, connecting portion and spread groove cooperation joint, the elastic component has elasticity, and when the door leaf was closed, the elastic component made the gap between left door leaf and the right door leaf remain sealed throughout, can block stretching of cold cigarette.
The present invention may be further configured in a preferred embodiment as: and a groove is formed in one or two opposite side surfaces of the left door leaf and the right door leaf along the length direction of the left door leaf and the right door leaf, and the second fireproof expansion sealing strip is elastically clamped with the groove.
Through adopting above-mentioned technical scheme, the sealed strip of second fire prevention inflation adopts the joint mode fixed, compares in simple bonding more firm, is difficult for droing.
The present invention may be further configured in a preferred embodiment as: the cross section of the elastic part is of a long strip shape, the cross section of the connecting part is of a rectangular shape, and an included angle between one side of the clamping part and the elastic part is an acute angle.
Through adopting above-mentioned technical scheme, after closing the door, the elastic part of rectangular shape receives the extrusion force of left door leaf or right door leaf and takes place to warp, and the elastic part remains sealed throughout, and the leakproofness is good.
The present invention may be further configured in a preferred embodiment as: the cross section of the connecting portion is rectangular, an inclined plane is arranged on one side face, adjacent to the side face where the elastic portion is located, of the connecting portion, and an included angle formed by the inclined plane and one face, far away from the elastic portion, of the connecting portion is an acute angle.
Through adopting above-mentioned technical scheme, connecting portion are provided with the inclined plane for connecting portion one side is big one side little, and connecting portion are difficult for droing after the installation.
The present invention may be further configured in a preferred embodiment as: the one end that connecting portion were kept away from to the elastic component is connected with the extension that buckles the setting, the contained angle between extension and the elastic component is the obtuse angle.
Through adopting above-mentioned technical scheme, after closing the door, extension and elastic component receive left door leaf or right door leaf's extrusion force and take place to warp, and the one end that the elastic component was kept away from to the extension is hugged closely with the lid seam limit, and the junction of elastic component and extension is hugged closely with left door leaf or right door leaf to keep sealed, the leakproofness is good.
To sum up, the utility model discloses a following at least one useful technological effect:
1. during the installation, with first fire prevention inflation sealing strip and first draw-in groove elastic clamping, with joint portion and second draw-in groove elastic clamping, when closing the door, the sealing atress direction of four sealing strips is different, the sealing that is close to the first heat-resisting sealing strip on hinge limit is located the gap between left door leaf or right door leaf and the second framework, left door leaf, the sealing of the first heat-resisting sealing strip on the upper and lower limit of right door leaf is located the gap between door leaf and the door frame, can block stretching of cold cigarette, first fire prevention inflation sealing strip begins inflation sealing when high temperature, improve leakproofness and security.
2. The gap between the left door leaf and the right door leaf is sealed by a second heat-resistant sealing strip, and the sealing effect can be achieved before the smoke temperature exceeds the limit of the heat-resistant sealing strip; when the temperature reaches more than 180 ℃, the first fireproof expansion sealing strip and the second fireproof expansion sealing strip start to expand and seal, double sealing is achieved, connection sealing of cold smoke and hot smoke (more than 180 ℃) is achieved, and sealing performance and safety are improved.
3. The deformation hole has two functions, on one hand, when the door is closed, the elastic part can be deformed without applying a large force, and a gap between the door frame and the door leaf is sealed; on the other hand, on the premise of ensuring the sealing function, the material consumption can be reduced, and the cost is reduced.
4. Through setting up the recess, second fire prevention inflation sealing strip and recess elastic clamping, second fire prevention inflation sealing strip adopts the joint mode fixed, compares in simple bonding more firm, is difficult for droing.
Drawings
Figure 1 is a schematic view of a double-open smoke fire door;
FIG. 2 is a partial cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a partial cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a cross-sectional view of a first fire-resistant intumescent seal and a first heat-resistant seal;
FIG. 5 is a sectional view taken along the line A-A of FIG. 1, showing a second fire resistant intumescent seal;
FIG. 6 is a cross-sectional view of a second heat-resistant sealing tape according to the first embodiment;
FIG. 7 is a cross-sectional view of a second heat-resistant sealing tape in the second embodiment;
FIG. 8 is a cross-sectional view of a second heat-resistant sealing tape according to the third embodiment;
figure 9 is a partial cross-sectional view of a double-open smoke fire rated door of the third embodiment;
FIG. 10 is a cross-sectional view of the second heat-resistant sealing tape of the fourth embodiment;
FIG. 11 is a cross-sectional view of a second heat-resistant sealing tape of the fifth embodiment;
figure 12 is a schematic view of a prior art fire door sealing structure.
Reference numerals: 1. a door frame; 101. a lapping surface; 102. a mating surface; 2. a left door leaf; 3. a right door leaf; 4. a fireproof hinge; 5. a door closer; 6. a fireproof lock; 7. a first card slot; 8. a second card slot; 9. a first fire resistant intumescent sealing strip; 10. a first heat-resistant sealing strip; 1001. a clamping part; 1002. a sealing part; 11. a second fire resistant intumescent seal strip; 12. a second heat resistant seal bar; 121. a connecting portion; 122. an elastic portion; 13. extruding the hole; 14. clamping a plate; 15. a third card slot; 16. covering and sewing edges; 17. a deformation hole; 18. connecting grooves; 19. a groove; 20. an extension portion.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows: referring to fig. 1, for the utility model discloses a two divisions of smoke protection and fire door, including door frame 1, left-hand door leaf 2 and right door leaf 3, door frame 1, left-hand door leaf 2 and right door leaf 3 adopt the thick cold-rolled steel sheet of 0.8mm to make, left-hand door leaf 2, it has fire prevention hinge 4 to articulate between one side that right door leaf 3 kept away from each other and the door frame 1, left-hand door leaf 2, still be provided with door closer 5 between right door leaf 3 and the door frame 1, be provided with fire prevention lock 6 between left-hand door leaf 2 and the right door leaf 3, 1 inside cement mortar after the solidification of door frame, left-hand door leaf 2 and the inside cavity of right door leaf 3, its inside pearlite.
Referring to fig. 2 and 3, two inner side walls of the door frame 1 close to the left door leaf 2 and the right door leaf 3 are respectively a lapping surface 101 and a matching surface 102, the lapping surface 101 of the door frame 1 facing one side of the left door leaf 2 and one side of the right door leaf 3 is provided with a first clamping groove 7, the cross section of the door frame 1 is L-shaped, and the cross section of the first clamping groove 7 is rectangular; the door frame 1 has been seted up second draw-in groove 8 towards the fitting surface 102 of left door leaf 2, right door leaf 3, and second draw-in groove 8 and first draw-in groove 7 intercommunication, the cross section of second draw-in groove 8 are right trapezoid, and right trapezoid's height is close to first draw-in groove 7 and sets up.
Referring to fig. 3 and 4, a first fireproof expansion sealing strip 9 is bonded in the first clamping groove 7, the first fireproof expansion sealing strip 9 is bonded with the first clamping groove 7 through a pressure-sensitive adhesive, a first heat-resistant sealing strip 10 is elastically clamped in the second clamping groove 8, the first heat-resistant sealing strip 10 is made of plastic with elasticity and high temperature resistance, the expansion temperature of the first fireproof expansion sealing strip 9 is 180 ℃, and the high temperature resistance limit of the first fireproof expansion sealing strip 9 can reach 250 ℃. First heat-resisting sealing strip 10 includes joint portion 1001 and sealing 1002, and joint portion 1001 is connected or laminates with first fire prevention inflation sealing strip 9, and in this embodiment, joint portion 1001 and the laminating of first fire prevention inflation sealing strip 9, the bisector face of sealing 1002 and the contained angle between the first fire prevention inflation sealing strip 9 are 45.
During installation, bond first fire prevention inflation sealing strip 9 and first draw-in groove 7, with joint portion 1001 and 8 elastic clamping of second draw-in groove, when closing the door, the sealing 1002 direction of force of four first heat-resisting sealing strips 10 is different, the sealing 1002 of the first heat-resisting sealing strip 10 that is close to fire prevention hinge 4 limit is located the gap between left door leaf 2 or right door leaf 3 and fitting surface 102, the sealing 1002 of the first heat-resisting sealing strip 10 on left door leaf 2, right door leaf 3 upper and lower limit is located the gap between left door leaf 2 or right door leaf 3 and door frame 1, consequently, the bisector of sealing 1002 and the contained angle between the fire prevention inflation sealing strip must be 45.
The inside of the clamping portion 1001 is provided with an extrusion hole 13 along the length direction thereof, and the cross section of the extrusion hole 13 is circular. The extrusion hole 13 has two functions, on one hand, when the clamping part 1001 is installed, the clamping part 1001 can be deformed without applying a large force, and the clamping part 1001 is convenient to install; on the other hand, on the premise of ensuring the sealing function, the material consumption can be reduced, and the cost is reduced.
Referring to fig. 5, in order to further improve the fireproof safety, a second fireproof expansion sealing strip 11 is arranged on one or two opposite sides of the left door leaf 2 and the right door leaf 3, a groove 19 is formed in one or two opposite sides of the left door leaf 2 and the right door leaf 3 along the length direction of the groove, the cross section of the groove 19 is isosceles trapezoid, the top edge of the isosceles trapezoid is located at the opening of the groove 19, and the second fireproof expansion sealing strip 11 is elastically clamped with the groove 19. The second fireproof expansion sealing strip 11 is fixed in a clamping mode, and is firmer and not easy to fall off compared with simple bonding.
Referring to fig. 5 and 6, in order to seal the gap between the left door leaf 2 and the right door leaf 3, a second heat-resistant sealing strip 12 is disposed on the side of the left door leaf 2 opposite to the right door leaf 3, and the second heat-resistant sealing strip 12 is disposed between the gap between the left door leaf 2 and the right door leaf 3.
Clamping plates 14 are arranged on one opposite side edge or two opposite side edges of the left door leaf 2 and the right door leaf 3 along the length direction of the left door leaf 2 and the right door leaf 3, the second heat-resistant sealing strip 12 comprises a connecting portion 121 and an elastic portion 122, the elastic portion 122 is connected with the outer wall of the connecting portion 121, the cross section of the connecting portion 121 is in a U shape, a third clamping groove 15 is formed in the outer wall of the connecting portion 121, and the side face, located at one end of the second fireproof expansion sealing strip 11, of the left door leaf 2 or. The clamping plate 14 is elastically clamped with the third clamping groove 15, so that the second heat-resistant sealing strip 12 is convenient to mount and is not easy to fall off.
The cover seam sides 16 are integrally formed on one side face or two side faces of the left door leaf 2 and the right door leaf 3 in the opposite direction, the cover seam sides 16 cover a gap between the left door leaf 2 and the right door leaf 3, the elastic part 122 is clamped between the cover seam sides 16 and the left door frame 1 or between the cover seam sides 16 and the right door frame 1, and one end of the clamping plate 14 and the inner side wall of the cover seam sides 16 are integrally formed. On the one hand, the cover hem 16 functions to protect the elastic portion 122, and on the other hand, the cover hem 16 keeps the elastic portion 122 in close contact with the door frame 1, thereby improving the sealing property.
The gap between the left door leaf 2 and the right door leaf 3 is sealed by the second heat-resistant sealing strip 12, so that the sealing effect can be achieved before the smoke temperature exceeds the limit of the heat-resistant sealing strip, and the cold smoke can be prevented from spreading; when the temperature reaches more than 180 ℃, the first fireproof expansion sealing strip 11 and the second fireproof expansion sealing strip 11 start to expand and seal, and double sealing is realized, so that the connection and sealing of cold smoke and hot smoke (more than 180 ℃) are realized, and the sealing performance and the safety are improved.
Example two: referring to fig. 7, a double-open smoke-proof and fire-proof door is different from the first embodiment in that the cross section of the elastic part 122 is circular or elliptical, in the first embodiment, the cross section of the elastic part 122 is circular, and a deformation hole 17 with a circular cross section is formed in the elastic part 122 along the length direction. The deformation hole 17 has two functions, on one hand, when the door is closed, the elastic part 122 can be deformed without applying a large force, and the gap between the door frame 1 and the door leaf is sealed; on the other hand, on the premise of ensuring the sealing function, the material consumption can be reduced, and the cost is reduced.
Example three: referring to fig. 8 and 9, a double-open smoke-proof and fire-proof door is different from the first embodiment in that a connecting groove 18 is formed in one or two opposite side surfaces of a left door leaf 2 and a right door leaf 3 along the length direction of the two side surfaces, a connecting portion 121 is elastically clamped with the connecting groove 18, and an elastic portion 122 is abutted against the left door leaf 2 or the right door leaf 3. The cross section of the elastic part 122 is in a strip shape, the cross section of the connecting part 121 is in a rectangular shape, the connecting part 121 is hollow, and an included angle between one surface of the clamping part 1001 connected with the elastic part 122 and the elastic part 122 is an acute angle. After the door is closed, the strip-shaped elastic part 122 is deformed by the pressing force of the left door leaf 2 or the right door leaf 3, the elastic part 122 is always kept sealed, and the sealing performance is good.
An inclined surface is arranged on one side surface of the connecting portion 121 adjacent to the side surface where the elastic portion 122 is located, and an included angle between the inclined surface and the side surface of the connecting portion 121 far away from the elastic portion 122 is an acute angle. The connecting portion 121 is provided with an inclined surface, so that the connecting portion 121 is small on one side and large on one side, and the connecting portion 121 is not easy to fall off after installation.
Example four: referring to fig. 10, a double-open smoke-proof and fire-proof door is different from the third embodiment in that one end of the elastic portion 122 away from the connecting portion 121 is connected to the extending portion 20, the cross section of the extending portion 20 is rectangular, the extending portion 20 and the connecting portion 121 are integrally formed, and an included angle between the extending portion 20 and the elastic portion 122 is an obtuse angle.
After the door is closed, the extending portion 20 and the elastic portion 122 are deformed by the pressing force of the left door leaf 2 or the right door leaf 3, one end of the extending portion 20 away from the elastic portion 122 is tightly attached to the cover seam 16, and the joint of the elastic portion 122 and the extending portion 20 is tightly attached to the left door leaf 2 or the right door leaf 3, so that sealing is maintained, and sealing performance is good.
Example five: referring to fig. 11, a double-open smoke-proof and fire-proof door is different from the third embodiment in that the cross section of the elastic part 122 is circular or elliptical, in the present embodiment, the cross section of the elastic part 122 is circular, and a deformation hole 17 having a circular cross section is formed in the elastic part 122 along the length direction thereof. The deformation hole 17 functions in the same manner as in the embodiment.
The implementation principle of the first embodiment to the fifth embodiment is as follows: during installation, first fireproof expansion sealing strip 9 is bonded with first clamping groove 7, clamping portion 1001 and second clamping groove 8 are elastically clamped, second fireproof expansion sealing strip 11 is elastically clamped with groove 19, and then second heat-resisting sealing strip 12 is installed.
When the door is closed, the four first heat-resistant sealing strips 10 seal the gaps between the left door leaf 2 and the right door leaf 3 and the door frame 1, the stress directions of the sealing parts 1002 of the four first heat-resistant sealing strips 10 are different, the sealing part 1002 of the first heat-resistant sealing strip 10 close to the fireproof hinge 4 is positioned in the gap between the left door leaf 2 or the right door leaf 3 and the matching surface 102, and the sealing parts 1002 of the first heat-resistant sealing strips 10 on the upper side and the lower side of the left door leaf 2 and the right door leaf 3 are positioned in the gap between the door leaf and the overlapping surface 101.
The gap between the left door leaf 2 and the right door leaf 3 is sealed by a second heat-resistant sealing strip 12, and the sealing effect can be achieved before the smoke temperature exceeds the limits of the first heat-resistant sealing strip 10 and the second heat-resistant sealing strip 12; when the temperature reaches more than 180 ℃, the first fireproof expansion sealing strip 9 and the second fireproof expansion sealing strip 11 start to expand and seal, double sealing is adopted, connection and sealing of cold smoke and hot smoke (more than 180 ℃) are achieved, and sealing performance and safety of the fireproof door are improved.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. A double-open smoke-proof fireproof door comprises a door frame (1), a left door leaf (2) and a right door leaf (3), wherein a fireproof hinge (4) is arranged between one side, away from each other, of the left door leaf (2) and the right door leaf (3) and the door frame (1), and is characterized in that a first clamping groove (7) is formed in a lap joint surface (101) of one side, facing the left door leaf (2) and the right door leaf (3), of the door frame (1), and a second clamping groove (8) is formed in a matching surface (102) of the door frame (1), facing the left door leaf (2) and the right door leaf (3);
a first fireproof expansion sealing strip (9) is arranged in the first clamping groove (7), a first heat-resistant sealing strip (10) is arranged in the second clamping groove (8), the first heat-resistant sealing strip (10) comprises a clamping portion (1001) and a sealing portion (1002), the clamping portion (1001) is connected or attached to the first fireproof expansion sealing strip (9), and an included angle between the bisecting surface of the sealing portion (1002) and the first fireproof expansion sealing strip (9) is 45 degrees;
and a second fireproof expansion sealing strip (11) is arranged on one or two opposite side surfaces of the left door leaf (2) and the right door leaf (3), a second heat-resistant sealing strip (12) is arranged on one opposite side of the left door leaf (2) and the right door leaf (3), and the second heat-resistant sealing strip (12) is positioned between the gaps of the left door leaf (2) and the right door leaf (3).
2. The double-open smoke-proof and fire-proof door as claimed in claim 1, wherein said clamping portion (1001) is provided with an extrusion hole (13) along its length.
3. The double-open smoke-proof and fire-proof door as claimed in claim 1, wherein the clamping plate (14) is arranged along the length direction of one or both opposite sides of the left door leaf (2) and the right door leaf (3), the second heat-resistant sealing strip (12) comprises a connecting portion (121) and an elastic portion (122), the elastic portion (122) is connected with the outer wall of the connecting portion (121), a third clamping groove (15) is formed in the outer wall of the connecting portion (121), and the side surface of the left door leaf (2) or the right door leaf (3) at one end of the second fire-proof expansion sealing strip (11) is abutted against the elastic portion (122).
4. A double-open smoke-proof fire door according to claim 3, wherein a cover seam edge (16) extends from one or two opposite sides of the left door leaf (2) and the right door leaf (3), the cover seam edge (16) covers a gap between the left door leaf (2) and the right door leaf (3), the elastic part (122) is clamped between the cover seam edge (16) and the left door frame (1) or between the cover seam edge (16) and the right door frame (1), and one end of the clamping plate (14) is connected with the inner side wall of the cover seam edge (16).
5. A double open fire door according to claim 3, wherein the cross section of said elastic portion (122) is circular or elliptical, and said elastic portion (122) has a deformation hole (17) formed therein along the length direction thereof.
6. The double-open smoke-proof fire door as claimed in claim 1, wherein the second heat-resistant sealing strip (12) comprises a connecting portion (121) and an elastic portion (122), the elastic portion (122) is connected with the outer wall of the connecting portion (121), a connecting groove (18) is formed in one or two opposite side surfaces of the left door leaf (2) and the right door leaf (3) along the length direction of the connecting portion, the connecting portion (121) is connected with the connecting groove (18) in a matching manner, and the elastic portion (122) is abutted against the left door leaf (2) or the right door leaf (3).
7. A double open smoke and fire door according to claim 1, wherein said left (2) and right (3) door leaves are provided with a groove (19) along the length direction of the door leaves on one or both sides, and said second fire-resistant intumescent sealing strip (11) is elastically locked with the groove (19).
8. The double-open smoke-proof and fire-proof door as claimed in claim 6, wherein said elastic portion (122) is elongated in cross section, said connecting portion (121) is rectangular in cross section, and the included angle between the elastic portion (122) and the side where said clamping portion (1001) and elastic portion (122) are connected is acute angle.
9. A double-open smoke-proof and fire-proof door as claimed in claim 6, wherein said connecting portion (121) is rectangular in cross-section, a side of said connecting portion (121) adjacent to the side where said elastic portion (122) is located is provided with an inclined surface, and the included angle between said inclined surface and the side of said connecting portion (121) away from said elastic portion (122) is an acute angle.
10. A double-open fire-proof door as claimed in claim 8, wherein the end of said elastic part (122) away from said connecting part (121) is connected to a bending extension part (20), and the included angle between said extension part (20) and said elastic part (122) is an obtuse angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020795447.3U CN212507979U (en) | 2020-05-13 | 2020-05-13 | Double-open smoke-proof fireproof door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020795447.3U CN212507979U (en) | 2020-05-13 | 2020-05-13 | Double-open smoke-proof fireproof door |
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| CN212507979U true CN212507979U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020795447.3U Active CN212507979U (en) | 2020-05-13 | 2020-05-13 | Double-open smoke-proof fireproof door |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116044282A (en) * | 2023-01-05 | 2023-05-02 | 鹤山天山金属材料制品有限公司 | Double-door edge wrapping structure and double door |
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2020
- 2020-05-13 CN CN202020795447.3U patent/CN212507979U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116044282A (en) * | 2023-01-05 | 2023-05-02 | 鹤山天山金属材料制品有限公司 | Double-door edge wrapping structure and double door |
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