A kind of aluminium alloy extrusions with two pass heat-insulating bridge-cut-off structure
Technical field
The present invention relates to a kind of alumium alloy door and window profile structure, particularly relate to a kind of aluminium alloy extrusions with two pass heat-insulating bridge-cut-off structure.
Background technology
In door and window manufacture field, adopt the application of door and window in fixed buildings of the various materials such as aluminium alloys, plastics or plastic-steel very general.Wherein adopt the door window frame of the section brace of aluminum alloy material to possess suitable intensity and aesthetic property due to it, but possess light weight, inexpensive advantage and use the widest simultaneously.
Aluminium alloys is originally as a kind of aluminum alloy material, and it possesses good heat conductivility.Therefore, need during door window frame used as effectively insulating fully to optimize its structure, enable aluminium alloy door window frame possess good heat-insulating property while possessing characteristic properties and advantage.The way that present industry is general is the isolation layer being provided with heat-barrier material composition in the inside of aluminium alloy extrusions, blocks heat bridge, reduces heat transfer efficiency, thus optimizes insulation, effect of heat insulation.Heat-barrier material is normally adopted to be divided into two by aluminium alloy extrusions thus to reach corresponding heat insulation effect in prior art, and the set-up mode of heat-barrier material normally in the aluminum alloy materials on both sides intert nylon heat-insulating strip is set, or in aluminium alloy extrusions direct injection moulding or injecting glue formation isolation layer.But above-mentioned two kinds of modes, connecting owing to can not cut off aluminium alloys completely, is therefore only subrange to the partition of heat bridge, so effect of heat insulation can not be very desirable.In addition, these two kinds of modes above-mentioned are not also because taking into full account the factor such as stressed and making the overall load-bearing of aluminium alloy extrusions and strength character be subject to obvious reduction.The technology type of the bridge-cutoff aluminum alloy heat-insulation on existing market is mainly as follows:
1, PA66 nylon strip heat-insulating technique is worn in the middle of the both sides aluminium that Europe is introduced; Heat insulating strip length is between 10mm-35mm, and general conventional heat insulating strip is 14.8mm, if the high heat insulating strip that will adopt more than 35mm of insulation requirement, but the section bar intensity degradation after compound, shear resistance declines, and causes door and window potential safety hazard, and heat insulating strip is longer, cost is higher;
2, the aluminium injecting glue bridge insulation thermal resistance technology of U.S.'s introduction, the heat insulation mouth of this technology is divided into A type notch, Type B notch, C type notch, and D type notch is several, but adiabatic gum size is all no more than 20mm, and effect of heat insulation is difficult to improve;
3, aluminium-wood composite section technology, aluminium alloys accounts for main material because wood easily makes moist and worm corrosion, and cost and difficulty of processing all very high, service life is also permanent, is the product that a kind of cost performance is not high.
Summary of the invention
Based on above the deficiencies in the prior art, technical problem solved by the invention is to provide a kind of aluminium alloy extrusions with two pass heat-insulating bridge-cut-off structure, by by the aluminium alloy structure one dividing into three in type frame, and heat-barrier material is set at the joining place of each aluminium alloy extrusions, direct contact between the aluminium alloy extrusions avoiding heat conductivility good, and form bilateral heat-insulating bridge-cut-off, fully cut off heat bridge, thus reduction heat transfer efficiency, improve the effect of heat insulation of aluminium alloy extrusions, and increase the bulk strength of aluminium alloy extrusions.
In order to solve the problems of the technologies described above, the invention provides a kind of aluminium alloy extrusions with two pass heat-insulating bridge-cut-off structure, comprise external aluminium alloy profile A, middle aluminium alloy extrusions B and inner aluminium alloy extrusions C, between described external aluminium alloy profile A and middle aluminium alloy extrusions B, adopt penetrating bar type heat insulating strip or glue injection type adiabatic gum to be separated by external aluminium alloy profile A and middle aluminium alloy extrusions B; Adopt glue injection type adiabatic gum or penetrating bar type heat insulating strip to be separated by middle aluminium alloy extrusions B and inner aluminium alloy extrusions C between described middle aluminium alloy extrusions B and inner aluminium alloy extrusions C, form the aluminium alloy extrusions of two pass heat-insulating bridge-cut-off structure; External aluminium alloy profile A, middle aluminium alloy extrusions B, inner aluminium alloy extrusions C and the penetrating bar type heat insulating strip between them and/or glue injection type adiabatic gum are integrally composited, the conduction and external aluminium alloy profile A, middle aluminium alloy extrusions B, inner aluminium alloy extrusions C do not conduct heat mutually; Described penetrating bar type heat insulating strip adopts Nylon-66 reinforced with glass fiber composite material, utilizes the mode of mechanical press to be connected to external aluminium alloy profile A and middle aluminium alloy extrusions B or between middle aluminium alloy extrusions B and inner aluminium alloy extrusions C; Described glue injection type adiabatic gum adopts polyurethane adhesive material, and the mode of first cutting bridge again by injecting glue is connected to middle aluminium alloy extrusions B and between inner aluminium alloy extrusions C or external aluminium alloy profile A and middle aluminium alloy extrusions B; Space between external aluminium alloy profile A, middle aluminium alloy extrusions B, inner aluminium alloy extrusions C adopts vinyl cover decoration to block; Described at least two aluminium alloy extrusions and window control hardware are formed fenestration, the external aluminium alloy profile A of fenestration controls to open and close action through window control hardware, forms internal and external parts adopts inside and outside forms sealing joint strip airtight, the middle lumen sealing joint strip secondary that adopts is strengthened airtight, three layers of hollow energy-saving glass fiber are set between outside aluminium alloy extrusions A and inner aluminium alloy extrusions C, described three layers of hollow energy-saving glass fiber are fixed by glass depression, and glass is inside and outside adopts the sealing of glass capsulation adhesive tape final fixing.The present invention by penetrating bar type heat insulating strip or glue injection type adiabatic gum by aluminium alloy extrusions one dividing into three, at the joining place of each aluminium alloy extrusions, heat-barrier material is set, direct contact between the aluminium alloy extrusions avoiding heat conductivility good, and form bilateral heat-insulating bridge-cut-off, fully cut off heat bridge, thus reduce heat transfer efficiency, optimize the effect of heat insulation of the entirety of aluminium alloy extrusions, the air of effective reduction indoor and outdoor, from the cold and hot conduction aluminium extruded sections framework, reduces the energy consumptions such as air-conditioning.
As the preferred embodiment of technique scheme, the aluminium alloy extrusions of two pass heat-insulating bridge-cut-off structure that what the embodiment of the present invention provided have comprises the part or all of of following technical characteristic further:
Preferably, described penetrating bar type heat insulating strip two ends symmetry be provided with the portion of being affiliated to, the aluminium alloy extrusions be connected with described penetrating bar type heat insulating strip is provided with the buckle slot matched with the described portion of being affiliated to.
As the improvement of technique scheme, described in the portion of being affiliated to be del.
Further, the mid portion of described middle aluminium alloy extrusions B is with a rectangular cavity, and buckle slot is arranged at the two ends of described rectangular cavity side.
As the improvement of technique scheme, described in be affiliated to portion the surface on surface and buckle slot be provided with anti-skidding salient point or anti-skidding lines, the opening part of described buckle slot is provided with the occlusion chimb be mutually engaged with the described portion of being affiliated to.
Preferably, in one embodiment of the present invention, described external aluminium alloy profile A is provided with an intermediate cavity D, and the bottom of described intermediate cavity D is provided with profile catching groove, the edge portion of described intermediate cavity D is provided with decorative groove, and described profile catching groove can fix penetrating bar type heat insulating strip or glue injection type adiabatic gum.
As the improvement of technique scheme, described inner aluminium alloy extrusions C is strip, and the side of described inner aluminium alloy extrusions C is shiny surface, and opposite side is provided with several mounting grooves, can fix penetrating bar type heat insulating strip or glue injection type adiabatic gum in described mounting groove.
Preferably, in another embodiment of the present invention, described external aluminium alloy profile A is provided with an intermediate cavity E, and the top of described intermediate cavity E is extended with arc-shaped side respectively to both sides, and the end of described arc-shaped side is provided with groove.
As the improvement of technique scheme, described inner aluminium alloy extrusions C is provided with an intermediate cavity F, the top of described intermediate cavity F extends respectively to two ends, and respectively mounting groove is set up and down at the two ends of described extension, penetrating bar type heat insulating strip or glue injection type adiabatic gum can be fixed in described mounting groove.
Preferably, in another embodiment of the present invention, described external aluminium alloy profile A is provided with a rectangular cavity, described rectangular cavity top is provided with cross binding plate to both sides, one end of described cross binding plate is provided with clamping structure, this clamping structure comprises fixed chuck and compresses dop, the described forms sealing joint strip of clamping and glass capsulation adhesive tape in described clamping structure.
Compared with prior art, technical scheme of the present invention at least tool have the following advantages:
The aluminium alloy extrusions with two pass heat-insulating bridge-cut-off structure of the present invention, by penetrating bar type heat insulating strip or glue injection type adiabatic gum by aluminium alloy extrusions one dividing into three, at the joining place of each aluminium alloy extrusions, heat-barrier material is set, direct contact between the aluminium alloy extrusions avoiding heat conductivility good, and form bilateral heat-insulating bridge-cut-off, fully cut off heat bridge, thus reduction heat transfer efficiency, optimize the effect of heat insulation of the entirety of aluminium alloy extrusions, the air of effective reduction indoor and outdoor, from the cold and hot conduction aluminium extruded sections framework, reduces the energy consumptions such as air-conditioning.In addition, the aluminium alloy extrusions with two pass heat-insulating bridge-cut-off structure of the present invention, penetrating bar type heat insulating strip two ends symmetry be provided with the portion of being affiliated to, and the aluminium alloy extrusions be connected with penetrating bar type heat insulating strip is provided with the buckle slot matched with the described portion of being affiliated to, by penetrating bar type heat insulating strip, each aluminium alloy extrusions is separated, direct contact between the aluminium alloy extrusions avoiding heat conductivility good, and form bilateral heat-insulating bridge-cut-off, fully cut off heat bridge, thus reduction heat transfer efficiency, optimize the effect of heat insulation of the entirety of aluminium alloy extrusions.The mid portion of middle aluminium alloy extrusions B of the present invention is with a rectangular cavity, buckle slot is arranged at the two ends of described rectangular cavity side, make can realize effective mechanics transmission effect between aluminium alloy extrusions that in the aluminium alloy extrusions of two pass heat-insulating bridge-cut-off structure, three are separated, the anti-shear performance of whole aluminium alloy extrusions and section bar cross section property are strengthened greatly, avoids the problem occurring load degradation because aluminium alloy extrusions is provided separately; When concrete structure designs, anti-skidding salient point or anti-skidding lines is provided with on the surface on the surface and buckle slot of being affiliated to portion, make joining place tightr by arranging anti-skidding salient point, possesses better power transmission effect, optimize the aluminium alloy structure stress performance on the whole of one dividing into three, ensure intensity and the load bearing effect of aluminium alloy extrusions.
In addition, the aluminium alloy extrusions with two pass heat-insulating bridge-cut-off structure of the present invention also has following beneficial effect: 1, because aluminum alloy materials both sides are separated by penetrating bar type and the multi-form heat insulation colloid of glue injection type two kinds, the material after compound reaches the effect of two pass bridge insulation thermal resistance.
2, because aluminum alloy materials both sides are separated by penetrating bar type and the multi-form heat insulation colloid of glue injection type two kinds, effectively reduce the air of indoor and outdoor from the cold and hot conduction aluminium alloy extrusions framework, reduce the energy consumptions such as air-conditioning.
3, because aluminum alloy materials both sides are separated by penetrating bar type and the multi-form heat insulation colloid of glue injection type two kinds, material after compound reaches the effect of two pass bridge insulation thermal resistance, also whole cavity of sectional material is made to reach 5 more than, the heat insulation resistance body of two pass, effectively slow down cross-ventilation heat transfer interior in the cavity of aluminum alloy materials, reach splendid heat-insulating and energy-saving effect.
4, because aluminum alloy materials both sides are separated by penetrating bar type and the multi-form heat insulation colloid of glue injection type two kinds, material after compound reaches the effect of two pass bridge insulation thermal resistance, the width dimensions of two pass energy-saving material is minimum reaches more than 40mm, effectively can expand the insulator width of section bar under the effect not reducing shear resistance.
5, because aluminum alloy materials both sides are processed by penetrating bar type and the multi-form adiabatic gum bluk recombination of glue injection type two kinds; Wear bar insulator and adopt Nylon-66 reinforced with glass fiber composite material material, heat resistance is more excellent, and glue injection type adiabatic gum adopts the special polyurethane adhesive material of section bar, and polyurethane adhesive has good cold resistant performance, according to the advantage of two kinds of insulated rubber strips, wear the door and window outside that bar heat insulating strip heat resistance can be applicable to well southern region, and the energy-conservation resistance to cold of glue injection type is excellent, can arrange the door and window of the heat insulation colloid of glue injection type in north cold area outside.
6, this power-saving technology can make the heat-proof quality of aluminium alloy extrusions self be enhanced about more than once, and efficiently solve the drawback that aluminium alloys is the good conductor of heat, satisfied country is high-low carbon power conservation requirement trend more.
7, because aluminum alloy materials both sides are processed by penetrating bar type and the multi-form adiabatic gum bluk recombination of glue injection type two kinds; The increase of section bar breadth of section, easily can configure 3 layers of hollow glass that hollow glass gap is more than 12mm, make whole window heat-proof quality more excellent, whole window can easily reach European energy conservation standard.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of manual, and can become apparent to allow above and other object of the present invention, feature and advantage, below in conjunction with preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the structural representation with the aluminium alloy extrusions of two pass heat-insulating bridge-cut-off structure of the embodiment of the present invention one.
Fig. 2 is the structural representation with the aluminium alloy extrusions of two pass heat-insulating bridge-cut-off structure of the embodiment of the present invention two.
Fig. 3 is the structural representation with the fenestration of the aluminium alloy extrusions of two pass heat-insulating bridge-cut-off structure of the embodiment of the present invention.
Detailed description of the invention
Describe the present invention in detail below in conjunction with accompanying drawing, it illustrates principle of the present invention as the part of this manual by embodiment, and other aspects of the present invention, feature and advantage thereof will become very clear by this detailed description.In the accompanying drawing of institute's reference, in different figure, same or analogous parts use identical drawing reference numeral to represent.
As Fig. 1, the structural representation of what the embodiment of the present invention one provided the have aluminium alloy extrusions of two pass heat-insulating bridge-cut-off structure, the aluminium alloy extrusions with two pass heat-insulating bridge-cut-off structure of the present invention comprises external aluminium alloy profile A10, middle aluminium alloy extrusions B20 and inner aluminium alloy extrusions C30, adopts penetrating bar type heat insulating strip 40 or glue injection type adiabatic gum 50 to be separated by external aluminium alloy profile A10 and middle aluminium alloy extrusions B20 between described external aluminium alloy profile A10 and middle aluminium alloy extrusions B20; Adopt glue injection type adiabatic gum 50 or penetrating bar type heat insulating strip 40 to be separated by middle aluminium alloy extrusions B20 and inner aluminium alloy extrusions C30 between described middle aluminium alloy extrusions B20 and inner aluminium alloy extrusions C30, form the aluminium alloy extrusions of two pass heat-insulating bridge-cut-off structure; External aluminium alloy profile A10, middle aluminium alloy extrusions B20, inner aluminium alloy extrusions C30 and the penetrating bar type heat insulating strip 40 between them and/or glue injection type adiabatic gum 50 are integrally composited, the conduction and external aluminium alloy profile A10, middle aluminium alloy extrusions B20, inner aluminium alloy extrusions C30 do not conduct heat mutually, aluminium alloy extrusions after compound reaches the effect of two pass bridge insulation thermal resistance, the air of effective reduction indoor and outdoor, from the cold and hot conduction aluminium extruded sections framework, reduces the energy consumptions such as air-conditioning.
Preferably, penetrating bar type heat insulating strip 40 of the present invention adopts Nylon-66 reinforced with glass fiber composite material, utilizes the mode of mechanical press to be connected to external aluminium alloy profile A10 and middle aluminium alloy extrusions B20 or between middle aluminium alloy extrusions B20 and inner aluminium alloy extrusions C30; Described glue injection type adiabatic gum 50 adopts polyurethane adhesive material, and the mode of first cutting bridge again by injecting glue is connected to middle aluminium alloy extrusions B20 and between inner aluminium alloy extrusions C30 or external aluminium alloy profile A10 and middle aluminium alloy extrusions B20.
In addition, space between external aluminium alloy profile A10, middle aluminium alloy extrusions B20, inner aluminium alloy extrusions C30 adopts vinyl cover 60 decoration to block, vinyl cover 60 and external aluminium alloy profile A10, middle aluminium alloy extrusions B20, inner aluminium alloy extrusions C30 form multiple cavity, effectively slow down the cross-ventilation heat transfer in the cavity of metal material, to reach splendid heat-insulating and energy-saving effect.
During concrete enforcement, described at least two aluminium alloy extrusions and window control hardware 70 are formed fenestration by the present invention, the external aluminium alloy profile A10 of fenestration controls to open and close action through window control hardware 70, forms internal and external parts adopts inside and outside forms sealing joint strip 11 airtight, 21 2 reinforcements of middle employing lumen sealing joint strip are airtight, three layers of hollow energy-saving glass fiber 80 are set between outside aluminium alloy extrusions A10 and inner aluminium alloy extrusions C30, three layers of hollow energy-saving glass fiber 80 are fixed by glass depression 81, the inside and outside glass capsulation adhesive tape 82 that adopts of glass seals final fixing.
As depicted in figs. 1 and 2, in a preferred embodiment of the invention, described penetrating bar type heat insulating strip 40 two ends symmetry be provided with the portion of being affiliated to 41, preferably, the described portion 41 that is affiliated to is for del, and the aluminium alloy extrusions be connected with described penetrating bar type heat insulating strip 40 is provided with and the described buckle slot 12 of being affiliated to portion 41 and matching, by penetrating bar type heat insulating strip 40, each aluminium alloy extrusions is separated, direct contact between the aluminium alloy extrusions avoiding heat conductivility good, and form bilateral heat-insulating bridge-cut-off, fully cut off heat bridge, thus reduction heat transfer efficiency, optimize the effect of heat insulation of the entirety of aluminium alloy extrusions.
In an embodiment of the present invention, the mid portion of described middle aluminium alloy extrusions B20 is with a rectangular cavity 22, buckle slot 12 is arranged at the two ends of described rectangular cavity 22 side, make can realize effective mechanics transmission effect between aluminium alloy extrusions that in the aluminium alloy extrusions of two pass heat-insulating bridge-cut-off structure, three are separated, the anti-shear performance of whole aluminium alloy extrusions and section bar cross section property are strengthened greatly, avoids the problem occurring load degradation because aluminium alloy extrusions is provided separately.
Better effect is connected in order to reach, make the connection between each several part more firm, in technical scheme of the present invention, with regard to the details at each structure cohesion place, the surface on described surface and buckle slot 12 of being affiliated to portion 41 is provided with anti-skidding salient point or anti-skidding lines, making joining place tightr by arranging anti-skidding salient point in embodiments of the present invention, possessing better power transmission effect.In addition, the opening part of described buckle slot 12 is provided with the occlusion chimb be mutually engaged with the described portion of being affiliated to, thus the portion that is affiliated to 41 in buckle slot 12 realizes better fixing.Vibrational power flow so, the connected structure of optimal design-aside aluminium alloy extrusions, by arranging buckle slot 12 in the side of middle aluminium alloy extrusions B20, and matched by the portion that is affiliated to 41 of penetrating bar type heat insulating strip 40, on outside aluminium alloy extrusions A10 and inner aluminium alloy extrusions C30, arrange and be affiliated to the buckle slot 12 that portion 41 matches again, thus optimize the aluminium alloy structure stress performance on the whole of one dividing into three, ensure intensity and the load bearing effect of aluminium alloy extrusions.
As shown in Figure 1, what the embodiment of the present invention one provided has in the aluminium alloy extrusions of two pass heat-insulating bridge-cut-off structure, described external aluminium alloy profile A10 is provided with an intermediate cavity D13, the bottom of described intermediate cavity D13 is provided with profile catching groove, the edge portion of described intermediate cavity D13 is provided with decorative groove 14, and described profile catching groove can fix penetrating bar type heat insulating strip 40 or glue injection type adiabatic gum 50.Correspondingly, described inner aluminium alloy extrusions C30 is strip, and the side of described inner aluminium alloy extrusions C30 is shiny surface, and opposite side is provided with several mounting grooves 31, can fix penetrating bar type heat insulating strip 40 or glue injection type adiabatic gum 50 in described mounting groove 31.
As shown in Figure 2, the aluminium alloy extrusions of two pass heat-insulating bridge-cut-off structure that what the embodiment of the present invention two provided have, in agent structure and embodiment one, scheme is approximate, in the middle of it, described external aluminium alloy profile A10 is provided with an intermediate cavity E15, the top of described intermediate cavity E15 is extended with arc-shaped side 16 respectively to both sides, and the end of described arc-shaped side 16 is provided with groove 17.Described inner aluminium alloy extrusions C30 is provided with an intermediate cavity F32, the top of described intermediate cavity F32 extends respectively to two ends, and at the two ends of described extension, mounting groove 31 is set up and down respectively, penetrating bar type heat insulating strip 40 or glue injection type adiabatic gum 50 can be fixed in described mounting groove 31.Therefore, have in the aluminium alloy extrusions of two pass heat-insulating bridge-cut-off structure of the present invention, aluminium alloy extrusions arranges buckle slot 12, profile catching groove or mounting groove 31, coordinate with penetrating bar type heat insulating strip 40 or glue injection type adiabatic gum 50 and aluminium alloy extrusions is divided into three separate aluminium alloy extrusions, external aluminium alloy profile A10, can all by penetrating bar type heat insulating strip 40 between middle aluminium alloy extrusions B20 and inner aluminium alloy extrusions C30, or all by glue injection type adiabatic gum 50, or use penetrating bar type heat insulating strip 40 and glue injection type adiabatic gum 50 by external aluminium alloy profile A10 simultaneously, middle aluminium alloy extrusions B20 and inner aluminium alloy extrusions C30 separates, to form the aluminium alloy extrusions of two pass heat-insulating bridge-cut-off structure, reach effect of heat-insulating and energy-saving.
In another embodiment of the invention, described external aluminium alloy profile A10 is provided with a rectangular cavity, described rectangular cavity top is provided with cross binding plate 17 to both sides, one end of described cross binding plate 17 is respectively equipped with clamping structure 18, this clamping structure 18 comprises fixed chuck and compresses dop, the described forms sealing joint strip 11 of clamping and glass capsulation adhesive tape 82 in described clamping structure 18.
Compared to prior art, the aluminium alloy extrusions with two pass heat-insulating bridge-cut-off structure that above-described embodiment discloses, by penetrating bar type heat insulating strip 40 or glue injection type adiabatic gum 50 by aluminium alloy extrusions one dividing into three, at the joining place of each aluminium alloy extrusions, heat-barrier material is set, direct contact between the aluminium alloy extrusions avoiding heat conductivility good, and form bilateral heat-insulating bridge-cut-off, fully cut off heat bridge, thus reduction heat transfer efficiency, optimize the effect of heat insulation of the entirety of aluminium alloy extrusions, the air of effective reduction indoor and outdoor is from the cold and hot conduction aluminium extruded sections framework, reduce the energy consumptions such as air-conditioning.In addition, the aluminium alloy extrusions with two pass heat-insulating bridge-cut-off structure of the present invention, penetrating bar type heat insulating strip 40 two ends symmetry be provided with the portion of being affiliated to 41, and the aluminium alloy extrusions be connected with penetrating bar type heat insulating strip 40 is provided with and the described buckle slot 12 of being affiliated to portion 41 and matching, by penetrating bar type heat insulating strip 40, each aluminium alloy extrusions is separated, direct contact between the aluminium alloy extrusions avoiding heat conductivility good, and form bilateral heat-insulating bridge-cut-off, fully cut off heat bridge, thus reduction heat transfer efficiency, optimize the effect of heat insulation of the entirety of aluminium alloy extrusions.The mid portion of middle aluminium alloy extrusions B20 of the present invention is with a rectangular cavity 22, buckle slot 12 is arranged at the two ends of described rectangular cavity 22 side, make can realize effective mechanics transmission effect between aluminium alloy extrusions that in the aluminium alloy extrusions of two pass heat-insulating bridge-cut-off structure, three are separated, the anti-shear performance of whole aluminium alloy extrusions and section bar cross section property are strengthened greatly, avoids the problem occurring load degradation because aluminium alloy extrusions is provided separately; When concrete structure designs, anti-skidding salient point or anti-skidding lines is provided with on the surface on the surface and buckle slot 12 of being affiliated to portion 41, make joining place tightr by arranging anti-skidding salient point, possesses better power transmission effect, optimize the aluminium alloy structure stress performance on the whole of one dividing into three, ensure intensity and the load bearing effect of aluminium alloy extrusions.
The above is the preferred embodiment of the present invention; certainly the interest field of the present invention can not be limited with this; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention; can also make some improvement and variation, these improve and variation is also considered as protection scope of the present invention.