CN211115606U - Aluminium alloy fire-resistant door - Google Patents

Abstract

An aluminum alloy fire-resistant door belongs to the field of aluminum alloy fire-resistant doors and comprises a door frame, a sash frame, glass, hinges and fire-resistant filler; the door frame comprises a vertical column and a cross beam; the upright posts are arranged on the ground or the lower cross beam, and the lower ends of the upright posts are fixedly connected with the ground or the lower cross beam; the upright is made of aluminum profiles and comprises upright profiles and auxiliary profiles; the hinge has the characteristics that the hinge can be installed inside the upright column profile, and the integral fire resistance is improved.

Description

Aluminium alloy fire-resistant door

Technical Field

The invention belongs to the field of aluminum alloy doors and windows, and particularly relates to an aluminum alloy casement glass fire-resistant door.

Background

In modern buildings, an aluminum alloy side hung door is often adopted at an entrance of a glass curtain wall or a hall, so that the light transmission can be increased, and the glass curtain wall or the hall has the characteristics of light weight and large opening area; as shown in figure 1, most of the existing aluminum alloy glass vertical hinged doors comprise a door frame, a door leaf and hardware; the door frame is arranged on the periphery of the door leaf and is fixedly connected with a wall body or the ground and a top plate or a cross beam; the door leaf is arranged in the door frame and comprises a leaf frame and glass; the sash frame is arranged on the periphery of the glass, one vertical side edge is connected with the door frame by hardware, and the other vertical side edge is involuted with the other sash frame or the door frame by hardware locking; the glass is arranged in the fan frame and is tightly connected with the fan frame through a pressing line or a fastener and a sealing strip; the hardware comprises a hinge, a handle and a lockset; the hinge is arranged between the fan frame and the door frame and can enable the fan frame to rotate around the hinge; the lock is arranged between the two sash frame joint parts (double sash doors) or between the sash frame and the door frame (single sash door), and can lock the sash frame and the sash frame or the door frame; the defect that exists in current structure lies in, the hinge that current fan frame and door frame are connected is installed in the outside of door frame and fan frame (as figure 2), like this when meeting the condition of a fire, the pivot part of hinge is naked hourglass in flame department, can be burnt by flame, cause the pivot round pin of hinge to drop or burn to die, make the door leaf can not open or the door leaf drops from the door frame, cause door frame and door leaf and glass intact and the function of door loses, the fire-resistant function of fire-resistant door has been lost, the short slab of fire-resistant door has been formed, the whole fire resistance of aluminum alloy glass flat-open fire-resistant door has been reduced.

Disclosure of Invention

Aiming at the problems of the existing aluminum alloy glass side-hung fire-resistant door, the invention provides a structure capable of balancing the fire resistance of the aluminum alloy glass side-hung door, and the specific technical scheme is that the aluminum alloy glass fire-resistant door is characterized in that: comprises a door frame, a sash frame, glass, hinges and refractory filler; the door frame comprises a vertical column and a cross beam; the upright posts are arranged on the ground or the lower cross beam, and the lower ends of the upright posts are fixedly connected with the ground or the lower cross beam; the upright is made of aluminum profiles and comprises upright profiles and auxiliary profiles; the upright column section bar and the auxiliary column section bar are attached and installed in parallel; the cross beam is made of aluminum section, is arranged at the upper ends of the two upright posts and is fixedly connected with the two upright posts; the fan frame is arranged in the door frame, is of a rectangular structure and is formed by enclosing a frame by a fan frame aluminum profile; the glass is arranged in the fan frame, the shape of the glass is matched with that of the inner frame of the fan frame, and the periphery of the glass is hermetically connected with the inner side of the fan frame; the glass is multilayer hollow glass; the hinge is arranged on the inner side of the door frame upright post and the outer side of one vertical edge of the sash frame, two movable parts of the hinge are respectively and fixedly connected with the door frame and the sash frame, and a rotating pin part of the hinge is positioned in the upright post section bar and is surrounded by the upright post section bar and the sash frame vertical edge aluminum section bar; the fireproof filler is filled in the hollow space of the door frame aluminum profile and the fan frame aluminum profile and is made of fireproof flexible materials.

In order to meet the requirement that a hinge is installed in the middle of a vertical column section and change the track change of opening and closing of a door leaf after installation, a new vertical column section is selected, wherein the vertical column section comprises a door leaf sealing strip clamping groove, a butt joint clamping groove, a door leaf sealing plate, an upper cavity, an auxiliary section butt joint upper groove, a heat insulation bridge, an auxiliary section butt joint lower groove, a lower cavity, an arc-shaped edge, a leaf frame butt joint surface and a hinge placing hole; the door leaf sealing strip clamping groove is arranged at the end part of the door leaf sealing plate, the butt joint clamping groove is arranged at the inner side of the door leaf sealing plate and is positioned at the side edge of the upper cavity, and an upper positioning block of hardware such as a hinge can be clamped; the door leaf sealing plate is arranged on the upper side wall extension part of the upper cavity and is connected with the upper cavity; the upper cavity is arranged at the upper part of the heat insulation bridge and is connected with the heat insulation bridge; the auxiliary section butt joint upper groove is arranged at the extending position of the upper side wall of the upper cavity and is positioned at the other side of the upper cavity opposite to the door leaf sealing plate, the heat insulation bridge is arranged between the upper cavity and the lower cavity, and two ends of the heat insulation bridge are respectively connected with the upper cavity and the lower cavity; the auxiliary section butt joint lower groove is arranged on the side wall of the lower cavity, corresponds to the auxiliary section butt joint upper groove and is positioned on the same side; the lower cavity is arranged at the lower end of the heat insulation bridge and is connected with the heat insulation bridge; the arc-shaped edge is arranged on the lower side wall of the lower cavity and is connected with the left side wall and the right side wall of the lower cavity; the fan frame butt joint surface is positioned on the right side of the lower cavity and is connected with the upper side wall and the lower side wall of the upper cavity; the hinge placing hole is formed in the right side of the upper cavity, the right side of the lower cavity and the heat insulation bridge, the shape and the size of the hinge placing hole are matched with those of the hinge, the rotating pin part of the hinge can be contained, and butt joint of the sash frame and the door frame stand column is not hindered.

Furthermore, more than one heat insulation bridge is made of heat insulation materials.

Furthermore, the auxiliary section bar butt joint upper groove and the auxiliary section bar butt joint lower groove have the same dimension and specification.

Furthermore, the inner spaces of the upper cavity and the lower cavity are through type and can contain heat insulation filler.

Furthermore, the butt joint surface of the fan frame is of a plane structure.

In order to match the change of the installation position of the hinge and the change of the upright column profile, the opening and the closing of the sash frame are convenient, and the opening and the closing angles are not influenced, the auxiliary profile is added on the outer side edge of the upright column profile of the door frame, and comprises an upright column clamping part, an auxiliary material upper cavity, a left clamping groove, an auxiliary material heat insulation bridge, a vacancy groove, a sealing groove and an auxiliary material lower cavity; the upright column clamping part is arranged on the right side of the auxiliary material upper cavity and is connected with the side wall of the auxiliary material upper cavity, and the position of the upright column clamping part corresponds to the auxiliary section butt joint upper groove on the upright column section; the end part of the upright column clamping part is provided with a clamping jaw, and the shape and the size of the clamping jaw are matched with the upper butt-joint groove of the auxiliary sectional material on the upright column sectional material; the auxiliary material upper cavity is arranged at the upper part of the auxiliary material heat insulation bridge and is connected with the auxiliary material heat insulation bridge to form a cavity body, and the inner cavity of the cavity body can contain refractory filler; the left clamping groove is arranged on the left side of the auxiliary material upper cavity and the auxiliary material lower cavity; the auxiliary material heat insulation bridge is arranged between the auxiliary material upper cavity and the auxiliary material lower cavity, two ends of the auxiliary material heat insulation bridge are respectively connected with the auxiliary material upper cavity and the auxiliary material lower cavity, and the auxiliary material heat insulation bridge is made of heat insulation high-strength materials; the empty groove is arranged at the lower end of the auxiliary material lower cavity and is an open groove, and the depth and the width of the empty groove can accommodate the edge sealing plate to enter the groove when the door leaf is completely opened; the sealing groove is arranged on the right side of the lower end of the auxiliary material lower cavity, and the sealing groove is matched with the upright column profile after the sealing strip is installed so as to seal a gap between the auxiliary aluminum profile and the upright column profile; the auxiliary material lower cavity is arranged at the lower end of the auxiliary material heat insulation bridge and connected with the auxiliary material heat insulation bridge, and the inner cavity can contain the refractory filler.

In order to adapt to the installation of the hinge in the upright column section bar, the hinge comprises a lower rotating sleeve, an upper rotating shaft, an upper connecting plate, an upper positioning block, a lower positioning block and a lower connecting plate; the lower rotating sleeve is a cylindrical hollow body, is arranged at the lower part of the upper rotating shaft and is sleeved with the upper rotating shaft, and the diameter of an inner hole of the lower rotating sleeve is matched with that of a step shaft of the upper rotating shaft, so that the upper rotating shaft can rotate in the lower rotating sleeve; the upper rotating shaft is a step shaft, the lower part of the step shaft is a small-diameter shaft, the upper part of the step shaft is a large-diameter shaft, the diameter of the large-diameter shaft is the same as the outer diameter of the lower rotating sleeve, and the diameter of the small-diameter shaft is smaller than or equal to the diameter of an inner hole of the lower rotating sleeve; the upper connecting plate is arranged on the outer cylindrical surface of the large-diameter shaft at the upper part of the upper rotating shaft and is fixedly connected with the cylindrical surface; the upper connecting plate is bent and is respectively matched with the upright column profile and the door leaf profile, and the width of the upper connecting plate is the same as the length of the large-diameter shaft of the upper rotating shaft; the upper positioning block is arranged on one side face of the upper connecting plate, the width of the upper positioning block is matched with that of a butt joint clamping groove in the upright column profile, and the height of the upper positioning block is smaller than or equal to that of the upper connecting plate; the lower positioning block is arranged on the right side face of the lower connecting plate, the width of the lower positioning block is matched with the width of a clamping groove in the door leaf aluminum section, and the length of the lower positioning block is smaller than or equal to the width of the lower connecting plate; the lower connecting plate is arranged on the outer circumference of the lower rotating sleeve and is fixedly connected with the outer circumference of the lower rotating sleeve; the lower connecting plate is bent, is matched with the space between the aluminum profile of the door leaf and the upright post profile after being butted, and has the width same as the length of the lower rotating sleeve; the directional indications herein are all to face the view direction.

Advantageous effects

The invention has the advantages that the integral fire resistance of the aluminum alloy glass fire-resistant door can be improved, and the defect that the integral fire resistance of the aluminum alloy glass fire-resistant door is reduced due to the existence of partial short plates is overcome; meanwhile, due to the adoption of the heat insulation bridge and the hollow glass, the energy-saving effect is realized.

Drawings

FIG. 1 is a schematic structural diagram of a conventional aluminum alloy glass fire-resistant door

A. The door comprises a door frame, a door leaf, glass, hardware and split-leaf glass.

FIG. 2 is a schematic view of the hinge installation state of the existing aluminum alloy glass fire-resistant door

A. Door frame, B door leaf, C glass, D1 hinge.

FIG. 3 is a schematic view of the installation structure of the door frame, the sash frame and the hinge of the aluminum alloy glass fireproof door of the invention

1. The window frame, 2, the hinge, 3, the column section bar, 4, the auxiliary section bar.

FIG. 4 is a structural diagram of the open state of FIG. 3

1. The door frame comprises a sash frame, 2. hinges, 3. door frame columns and 4. auxiliary sectional materials.

FIG. 5 is a schematic structural view of a column section

31. The door leaf sealing strip comprises a door leaf sealing strip clamping groove, a 32-butt joint clamping groove, a 33-door leaf sealing plate, a 34-upper cavity, a 35-auxiliary profile butt joint upper groove, a 36-heat insulation bridge, a 37-auxiliary profile butt joint lower groove, a 38-lower cavity, a 39-arc edge, a 310-sash frame butt joint surface and a 311-hinge placing hole.

FIG. 6 is a schematic structural view of an auxiliary profile

41. The vertical column clamping part comprises a vertical column clamping part, 42 parts of an auxiliary material upper cavity, 43 parts of a left clamping groove, 44 parts of an auxiliary material heat insulation bridge, 45 parts of a vacant slot, 46 parts of a sealing groove and 47 parts of an auxiliary material lower cavity.

FIG. 7 is a schematic view of the hinge structure

21. The device comprises a lower rotating sleeve, 22 an upper rotating shaft, 23 an upper connecting plate, 24 an upper positioning block, 25 a lower positioning block and 26 a lower connecting plate.

Detailed Description

For further explanation of the technical solutions of the present invention, the following description will be made with reference to the accompanying drawings; as shown in fig. 1-7, the upright column section bar 3 used in this example includes a door leaf seal strip slot 31, a butt slot 32, a door leaf seal strip 33, an upper cavity 34, an auxiliary section bar butt upper slot 35, a heat insulation bridge 36, an auxiliary section bar butt lower slot 37, a lower cavity 38, an arc-shaped edge 39, a fan frame butt surface 310, and a hinge placing hole 311; the door leaf sealing strip clamping groove 31 is arranged at the end part of the door leaf sealing plate 33, a sealing strip which is universal in the industry is arranged in the clamping groove after the door leaf sealing strip clamping groove is integrally installed, the closed side surface of the door leaf frame is sealed with the door frame, and dust is prevented from entering the door leaf sealing strip clamping groove; the butt joint clamping groove 32 is arranged on the inner side of the door leaf sealing plate 33 and is positioned on the side edge of the upper cavity 34, and can be used for clamping hardware such as the upper positioning block 24 of the hinge 2; the door leaf sealing plate 33 is arranged on the upper side wall extension part of the upper cavity 34 and is connected with the upper cavity 34; arranging the upper cavity 34 on the upper part of the heat insulation bridge 36 and connecting the upper cavity with the heat insulation bridge 36; the auxiliary section butt joint upper groove 35 is arranged at the upper side wall extension position of the upper cavity 34 and is positioned at the other side of the upper cavity 34 opposite to the door leaf sealing plate 33, in the embodiment, a nylon 66 material is selected as a heat insulation bridge 36, two heat insulation bridges are selected, the heat insulation bridge 36 is arranged between the upper cavity 34 and the lower cavity 38, and two ends of the heat insulation bridge are respectively connected with the upper cavity 34 and the lower cavity 38; the auxiliary section butt joint lower groove 37 is arranged on the side wall of the lower cavity 38, corresponds to the auxiliary section butt joint upper groove 35 and is positioned on the same side; thus being beneficial to the tight connection without gaps after the auxiliary section bar 4 is butted; the lower cavity 38 is arranged at the lower end of the heat insulation bridge 36 and is connected with the heat insulation bridge 36; the arc-shaped edge 39 is arranged on the lower side wall of the lower cavity 38 and is connected with the left side wall and the right side wall of the lower cavity 38; therefore, in order to adapt to the condition that the upright column section bar 3 is attached to the fan frame 1 when the door leaf is opened and closed, gaps are reduced; the fan frame butt joint surface 310 is arranged at the right side of the lower cavity 38 and is connected with the upper side wall and the lower side wall of the upper cavity 34; the hinge placing hole 311 is arranged on the right side of the upper cavity 34, the lower cavity 38 and the heat insulation bridge 36, namely on the side close to the door leaf frame, the shape and the size of the hinge placing hole are matched with the size and the shape of the hinge 2, so that the hinge placing hole can accommodate the rotating pin part of the hinge 2 and the butt joint of the door leaf frame 1 and the door frame upright post 3 is guaranteed, the upper cavity 34 and the lower cavity 38 are respectively manufactured into a die according to a mode commonly used in the industry, aluminum alloy drawing forming is adopted, and 2 heat insulation bridges 36 are arranged between the upper cavity 34 and the lower cavity 38, so that the implementation of the upright post section 3 is completed.

In order to match the change of the installation position of the hinge 2 and the change of the upright post section bar 3, the opening and the closing of the sash frame 1 are convenient, and the opening and the closing angles are not influenced, the auxiliary section bar 4 is added on the outer side edge of the door frame upright post section bar 3, in the embodiment, the auxiliary section bar 4 comprises an upright post clamping part 41, an auxiliary material upper cavity 42, a left clamping groove 43, an auxiliary material heat insulation bridge 44, a vacant position groove 45, a sealing groove 46 and an auxiliary material lower cavity 47; the upright column clamping part 41 is arranged on the right side of the auxiliary material upper cavity 42 and is connected with the side wall of the auxiliary material upper cavity 42, and the position of the upright column clamping part corresponds to the auxiliary section butt joint upper groove 35 on the upright column section 4; the end part of the upright post clamping part 41 is provided with a clamping jaw, and the shape and the size of the clamping jaw are matched with the auxiliary sectional material butt joint upper groove 35 on the upright post sectional material 4; so that no gap is left after butt joint; the auxiliary material upper cavity 42 is arranged at the upper part of the auxiliary material heat insulation bridge 44 and is connected with the auxiliary material heat insulation bridge 44 to form a cavity body, and the inner cavity of the cavity body can contain refractory filler; the left clamping groove 43 is arranged on the left side of the auxiliary material upper cavity 42 and the auxiliary material lower cavity 47, so that glass can be better attached to a wall or clamped; in this example, a heat insulation bridge common in the industry and identical to the upright column section bar 3 is selected as an auxiliary material heat insulation bridge 44, the auxiliary material heat insulation bridge 44 is installed between an auxiliary material upper cavity 42 and an auxiliary material lower cavity 47, and two ends of the auxiliary material heat insulation bridge are respectively connected with the auxiliary material upper cavity 42 and the auxiliary material lower cavity 47; the vacant slot 45 is arranged at the lower end of the auxiliary material lower cavity 47 and is an open slot, and the depth and the width of the vacant slot can accommodate the edge sealing plate to enter the slot when the fan frame 1 is completely opened without interference; the sealing groove 46 is arranged on the right side of the lower end of the auxiliary material lower cavity 47, and the sealing strip is installed and then is matched with the upright column section 3 to seal the gap between the auxiliary section 4 and the upright column section 3; and arranging the auxiliary material lower cavity 47 at the lower end of the auxiliary material heat insulation bridge 44 to be connected with the auxiliary material heat insulation bridge 44, wherein the inner cavity can contain refractory filler, respectively manufacturing a mould for the auxiliary material upper cavity 42 and the auxiliary material lower cavity 47, drawing and forming by adopting aluminum alloy, and connecting the auxiliary material upper cavity and the auxiliary material lower cavity by adopting the auxiliary material heat insulation bridge 44, thus completing the implementation of the auxiliary sectional material 4.

In order to adapt the hinge to be installed inside the upright column section bar, the hinge 2 in this example comprises a lower rotating sleeve 21, an upper rotating shaft 22, an upper connecting plate 23, an upper positioning block 24, a lower positioning block 25 and a lower connecting plate 26; the lower rotating sleeve 21 is a cylindrical hollow body, is arranged at the lower part of the upper rotating shaft 22 and is sleeved with the upper rotating shaft 22, and the diameter of an inner hole of the lower rotating sleeve is matched with that of a step shaft of the upper rotating shaft 22, so that the upper rotating shaft 22 can rotate in the lower rotating sleeve 21; the upper rotating shaft 22 is a stepped shaft, the lower part of the upper rotating shaft is a small-diameter shaft, the upper part of the upper rotating shaft is a large-diameter shaft, the diameter of the large-diameter shaft is the same as the outer diameter of the lower rotating sleeve 21, and the diameter of the small-diameter shaft is smaller than or equal to the diameter of an inner hole of the lower rotating sleeve 21; welding the upper connecting plate 23 on the outer cylindrical surface of the large-diameter shaft at the upper part of the upper rotating shaft 22; the bent shape is adopted, the bent shape is respectively matched with the upright column section bar 3 and the fan frame 1 aluminum section bar, and the width of the bent shape is the same as the length of the large-diameter shaft of the upper rotating shaft 22; the upper positioning block 24 is arranged on one side surface of the upper connecting plate 23, faces one side of the upright column profile 3, is matched with the width of a butt joint clamping groove 32 on the upright column profile 3 in width, is less than or equal to the width of the upper connecting plate 23 in height, is provided with a screw mounting hole, penetrates through the thicknesses of the upper positioning block 24 and the upper connecting plate 23, and can enable a fixing screw to penetrate through; the lower positioning block 25 is arranged on the right side surface of the lower connecting plate 26, namely one side close to the fan frame 1, the width of the lower positioning block is matched with the width of a clamping groove on an aluminum section of the fan frame 1, the length of the lower positioning block is less than or equal to the width of the lower connecting plate 26, a fixing screw mounting hole is arranged on the lower positioning block, the screw mounting hole penetrates through the thickness of the lower positioning block 25 and the lower connecting plate 26, and a fixing screw can penetrate through the screw mounting hole; the lower connecting plate 26 is arranged on the outer circumference of the lower rotating sleeve 21 and is fixedly connected with the outer circumference of the lower rotating sleeve 21; the lower connecting plate is selected to be bent, the width of the lower connecting plate is the same as the length of the lower rotating sleeve 21 in order to match the space between the aluminum section of the fan frame 1 and the vertical column section 3 after butt joint, and therefore the implementation of the hinge 2 is completed.

The invention comprises a door frame, a sash frame, glass, a hinge and a refractory filler; the door frame comprises a vertical column and a cross beam; the upright posts are arranged on the ground or the lower cross beam, and the lower ends of the upright posts are fixedly connected with the ground or the lower cross beam; the upright is made of aluminum profiles and comprises upright profiles and auxiliary column aluminum profiles; the upright column section bar and the auxiliary column section bar are attached and installed in parallel; the cross beam is made of aluminum section, is arranged at the upper ends of the two upright posts and is fixedly connected with the two upright posts; the fan frame is arranged in the door frame, is of a rectangular structure and is formed by enclosing a frame by a fan frame aluminum profile; the glass is arranged in the fan frame, the shape of the glass is matched with that of the inner frame of the fan frame, and the periphery of the glass is hermetically connected with the inner side of the fan frame; the glass is multilayer hollow glass; the hinge is arranged on the inner side of the door frame upright post and the outer side of one vertical edge of the sash frame, two movable parts of the hinge are respectively and fixedly connected with the door frame and the sash frame, and a rotating pin part of the hinge is positioned in the upright post section bar and is surrounded by the upright post section bar and the sash frame vertical edge aluminum section bar; the fireproof filler is filled in the hollow space of the door frame aluminum profile and the fan frame aluminum profile and is made of fireproof flexible materials.

In the embodiment, a refractory filler commonly used for aluminum alloy glass refractory doors commonly used in the industry is selected as the refractory filler, the refractory filler is filled in a cavity of an aluminum alloy section, a vertical column section 3 and an auxiliary section 4 are attached to form a vertical column of a door frame, an aluminum section beam commonly used in the industry is used as a beam, and the beam is arranged at the upper ends of two vertical columns and is fixedly connected with the two vertical columns; in the embodiment, a fan frame aluminum profile which is commonly used in the industry is selected and made into a rectangular fan frame 1; selecting multi-layer heat-insulating glass universal for aluminum alloy glass fire-resistant doors universal in the industry as glass, installing the glass in the sash frame 1, and fixedly and hermetically connecting the sash frame 1 with pressing lines and sealing strips; the method comprises the steps of installing a sash frame 1 in a door frame, wherein one vertical side edge of the sash frame 1 is connected with an upright post of the door frame through a hinge 2, installing the hinge 2 in a hinge placing hole 311 of an upright post section bar 3, clamping an upper positioning block 24 of the hinge 2 in a butt joint clamping groove 32 of the upright post section bar 3, fixedly connecting the upper positioning block 24 with the upright post section bar 3 through a self-tapping screw, clamping a lower positioning block 25 on the hinge 2 in a clamping groove of the sash frame 1, and fixing the lower positioning block 25 of the hinge 1 on the sash frame 1 through the self-tapping screw, so that the implementation of the invention is completed.

During the application, fan frame 1 can rotate around a vertical side of installation hinge 2 under hinge 2's effect, accomplish opening and closing of door leaf, because hinge 2 is encircleed between stand section bar 3 and fan frame 1, when the condition of a fire takes place, flame can not directly burn hinge 2's pivot, just can not damage hinge 2's pivot yet, the normal opening and the closing of door leaf have been guaranteed, avoided leading to the door leaf to drop or burn out and can not open and close because hinge 2's inefficacy, fire-resistant function has been realized, and simultaneously, owing to adopted corresponding stand section bar 3 and supplementary section bar 4, guaranteed because the change of hinge 2 mounting structure does not influence the normal opening and closing and the sealed heat-proof quality of aluminum alloy glass fire-resistant door.

Claims (5)

1. An aluminum alloy fire-resistant door comprises a door frame, a sash frame, glass, hinges and fire-resistant filler; the door frame comprises a vertical column and a cross beam; the upright posts are arranged on the ground or the lower cross beam, and the lower ends of the upright posts are fixedly connected with the ground or the lower cross beam; the upright is made of aluminum profiles and comprises upright profiles and auxiliary profiles; the method is characterized in that: the upright column section comprises a door leaf sealing strip clamping groove, a butt joint clamping groove, a door leaf sealing plate, an upper cavity, an auxiliary section butt joint upper groove, a heat insulation bridge, an auxiliary section butt joint lower groove, a lower cavity, an arc-shaped edge, a leaf frame butt joint surface and a hinge placing hole; the door leaf sealing strip clamping groove is arranged at the end part of the door leaf sealing plate, the butt joint clamping groove is arranged at the inner side of the door leaf sealing plate and is positioned at the side edge of the upper cavity, and an upper positioning block of hardware such as a hinge can be clamped; the door leaf sealing plate is arranged on the upper side wall extension part of the upper cavity and is connected with the upper cavity; the upper cavity is arranged at the upper part of the heat insulation bridge and is connected with the heat insulation bridge; the auxiliary section butt joint upper groove is arranged at the extending position of the upper side wall of the upper cavity and is positioned at the other side of the upper cavity opposite to the door leaf sealing plate, the heat insulation bridge is arranged between the upper cavity and the lower cavity, and two ends of the heat insulation bridge are respectively connected with the upper cavity and the lower cavity; the auxiliary section butt joint lower groove is arranged on the side wall of the lower cavity, corresponds to the auxiliary section butt joint upper groove and is positioned on the same side; the lower cavity is arranged at the lower end of the heat insulation bridge and is connected with the heat insulation bridge; the arc-shaped edge is arranged on the lower side wall of the lower cavity and is connected with the left side wall and the right side wall of the lower cavity; the fan frame butt joint surface is positioned on the right side of the lower cavity and is connected with the upper side wall and the lower side wall of the upper cavity; the hinge placing hole is formed in the right side of the upper cavity, the right side of the lower cavity and the heat insulation bridge, the shape and the size of the hinge placing hole are matched with those of the hinge, the rotating pin part of the hinge can be contained, and butt joint of the sash frame and the door frame stand column is not hindered.

2. A refractory door made of an aluminium alloy according to claim 1, characterized in that: more than one heat insulation bridge is made of heat insulation materials.

3. A refractory door made of an aluminium alloy according to claim 1, characterized in that: the auxiliary sectional material butt joint upper groove and the auxiliary sectional material butt joint lower groove are identical in size and specification.

4. A refractory door made of an aluminium alloy according to claim 1, characterized in that: the inner spaces of the upper cavity and the lower cavity are through type and can contain heat insulation filler.

5. A refractory door made of an aluminium alloy according to claim 1, characterized in that: the butt joint surface of the fan frame is of a plane structure.

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