CN219471903U - PET core material and aluminum alloy composite section bar and door and window - Google Patents

Abstract

The utility model relates to a PET (polyethylene terephthalate) core material and aluminum alloy composite section bar and a door and window, wherein the PET core material and aluminum alloy composite section bar comprises a first aluminum alloy section bar, a second aluminum alloy section bar, a PET core material and a buckle plate, the first aluminum alloy section bar and the second aluminum alloy section bar are arranged at intervals, the PET core material is fixed between the first aluminum alloy section bar and the second aluminum alloy section bar, the buckle plate is arranged on the outer side wall of the PET core material, and a first interval and a second interval are reserved between the peripheral edge of the buckle plate and the first aluminum alloy section bar and the second aluminum alloy section bar respectively. According to the PET core material and aluminum alloy composite section bar, aluminum alloy is used at two sides, the aluminum alloy section bar is used as a main stress member in the whole door and window, and the PET core material is arranged between the aluminum alloy sections and is used as a force transmission and heat preservation and insulation member. The PET core material and the aluminum alloy composite section bar have light dead weight, are convenient to transport and install, have high mechanical strength, and ensure that the door and window has excellent overall mechanical, airtight and watertight properties.

Description

PET core material and aluminum alloy composite section bar and door and window

Technical Field

The utility model relates to the technical field of profiles, in particular to a PET core material and aluminum alloy composite profile and a door and window.

Background

At present, common door and window profiles in the market adopt aluminum alloy profiles, energy-saving door and window profiles generally adopt broken bridge aluminum alloy profiles, plastic steel profiles, co-extrusion profiles, wood profiles and aluminum-wood composite profiles, and heat preservation door and window profiles generally adopt aluminum alloy and organic material composite profiles.

The aluminum alloy section has the high-quality characteristics of light dead weight, high mechanical strength, attractive appearance, ageing resistance and good sealing performance. However, the aluminum alloy section bar has no bridge cut-off setting, so that the heat insulation performance is extremely poor, and the heat conductivity coefficient lambda=203W/(m.K) of metal aluminum, so that the aluminum alloy window basically has no heat insulation performance, and the inner surface of the window is extremely easy to generate a dewing phenomenon in winter, so that the aluminum alloy section bar is basically eliminated by the market.

The bridge-cut-off aluminum alloy section is characterized in that a bridge-cut-off setting is added on the basis of the aluminum alloy section, nylon 66 is used as a bridge-cut-off material, and the whole aluminum alloy is divided into indoor and outdoor parts, so that the high-quality characteristics of light dead weight, high mechanical strength, attractive appearance, ageing resistance and good sealing performance of the aluminum alloy section are reserved, and the whole heat conductivity coefficient of the section is reduced through the bridge-cut-off setting of the nylon 66, so that the heat insulation performance of the aluminum alloy section is greatly improved. Along with the continuous improvement of energy-saving requirements at home and abroad, the heat-insulating property of the broken bridge aluminum alloy section bar can not meet the related standard requirements, and according to the requirements of the energy-saving design standard of residential buildings, which is implemented at present, for external windows, balcony doors and windows, the heat transfer coefficient of a curtain wall light-transmitting part and a roof skylight is less than or equal to 1.10W/(m < 2 >. K), the heat transfer coefficient lambda=0.35W/(m.K) of nylon 66, and because nylon strips are used for a long time, the heat transfer mode of nylon 66 is linear conduction, the heat transfer coefficient of the conventional broken bridge aluminum alloy section bar is limited by nylon 66, so that the good heat-insulating and energy-saving effects are difficult to achieve. The heat insulation performance of the broken bridge aluminum alloy window is improved, the section of the section is required to be enlarged, the aluminum alloy consumption of the large-section aluminum alloy section is increased, the manufacturing cost of doors and windows is improved, and the broken bridge heat insulation nylon 66 is widened, but the problem of line heat transfer is not fundamentally solved. The insulation performance of the broken bridge aluminum alloy window belongs to a lower level in the existing door and window section bar and is slightly worse than that of a plastic steel window and a co-extrusion window.

The wood window section is manufactured by completely using raw wood, has good visual effect and touch effect, low thermal conductivity of wood, good heat insulation performance and certain help to sound insulation performance. Wood window disadvantages: 1. the wood window adopts log as material, and the natural environment is influenced by a large amount of use; 2. the cost of wood is high, the processing technology is complex, the cost of wood windows is high, and the wood windows are difficult to apply to engineering in large batches; 3. the mechanical property of wood is lower, in order to ensure the whole window performance, the wood window section is made of heavy materials with larger section, the requirement on hardware, especially hinges, is very high, and deformation is easy to occur, so that the use is influenced. 4. Wood belongs to inflammable materials and has poor fireproof performance; 5. the wood window profile is generally formed by bonding wood plates and then performing secondary processing, and the used adhesive has certain harmful substances. 6. The surface of the wood window section bar is coated with varnish, certain requirements and difficulties are met for maintenance, the maintenance is not performed frequently, certain influence is caused on the durability of the wood window, and the attractiveness is influenced. 7. The wind pressure resistance and the safety of the wood door and window are not as good as those of the aluminum alloy door and window.

The aluminum-wood composite window section bar is divided into two types of aluminum clad wood and wood clad aluminum, and mainly comprises wood and aluminum alloy in the amount respectively. The aluminum clad wood has the advantages that: the profile mainly uses wood, the main mechanical property is completely supported by the wood property, the aluminum alloy is used for the outer surface, and the whole window is prevented or reduced from being maintained by utilizing the characteristic of good ageing resistance of the aluminum alloy. The indoor side is wood facing, and visual effect and touch effect are good. Disadvantages of aluminum clad wood: 1. the section bar mainly uses wood, and the mechanical property is completely supported by the wood property, so that the section bar has little difference from a pure wood window and has larger influence on natural environment; 2. the wood cost is high, the section bar and the door and window processing technology are various and complex, the whole window cost is high, and the large-batch application of the whole window to engineering is difficult; 3. the mechanical property of wood is lower, in order to ensure the whole window performance, the section of the profile is larger, the material is heavy, the requirement on hardware, especially the hinge, is very high, and the deformation is easy to generate, thereby influencing the use. 4. The aluminum-clad wood is a flammable material with poor fireproof performance; 5. the wood of the aluminum-wood composite window profile is generally formed by bonding wood plates and then performing secondary processing, and the used adhesive has certain harmful substances. 6. The wind pressure resistance and the safety of the aluminum-clad wood door and window are not as good as those of the aluminum alloy door and window. The wood-clad aluminum has the advantages that: the profile mainly uses an aluminum alloy profile, the main mechanical property is also completely supported by the performance of the aluminum alloy profile, the aluminum alloy is used for the outer side, and the characteristics of good ageing resistance and mechanical property of the aluminum alloy are utilized, so that the whole window is prevented or reduced from being maintained by an outer vertical surface, and meanwhile, the aluminum alloy profile has good mechanical property, and the performance index is superior to that of the traditional aluminum alloy door and window and a pure wood window. The indoor side is adhered with a layer of wood veneer, so that the visual effect and the touch effect are good. Disadvantages of wood-clad aluminum: 1. the heat insulation mode is realized by aluminum alloy bridge cut-off, and then solid wood is hung and stuck, so that the whole heat insulation performance of the door and window is improved very little; 2. the structure and the processing technology are complex, the quality control difficulty is high, and the cost of the whole window is high; 3. the large-section aluminum alloy section increases the consumption of aluminum alloy, improves the manufacturing cost of doors and windows, widens the broken bridge heat insulation nylon 66 strips, but does not fundamentally solve the problem of line heat transfer.

Plastic steel section bar: the plastic steel section door and window is mainly made of PVC, and steel lining is inserted in the section cavity to be compounded into the plastic steel section. The plastic steel window has the advantages that: the plastic steel window has better heat preservation and sound insulation performance, convenient maintenance and low manufacturing cost. Disadvantages of plastic steel window: 1. PVC has poor mechanical properties, so that a steel lining is needed to be inserted into the cavity to enhance the mechanical properties, but the steel lining cannot be penetrated at the corner of the window or the joint of the window stile and the frame, so that a stress weak point is formed, and the phenomenon of sagging occurs when the fan is opened, thereby influencing the use function; 2. PVC materials have poor ageing resistance, are easy to turn yellow and catalyze when exposed to sunlight; 3. PVC has poor aesthetic effect, single pattern and white color; 4. in order to be attractive, the outer side of the PVC profile can be coated with a film, but after the film is coated, the profile can be bent due to cold shrinkage to influence the processing and the use, the corner cleaning treatment is needed after the PVC welding, and the coating at the corner can expose the ground color (white) after cleaning; 5. the PVC profile is low in hardness, scratches easily appear on the surface of the profile, and the scratches are difficult to avoid in the door and window installation process, so that the surfaces of the doors and windows can have a plurality of scratches when the building is delivered and used; 6. PVC belongs to inflammables, has poor fireproof performance and can discharge toxic substances when burned. 7. Compared with the insulation performance of the broken bridge aluminum alloy window, the plastic steel profile is more excellent, but still the related requirements of new specifications are difficult to meet.

Co-extrusion of profile: the lining of the co-extrusion profile is made of steel or aluminum alloy material, and the composite profile is formed by uniformly foaming and wrapping the heated and melted plastic on the lining through a die while extruding the lining. Advantages of co-extruded window: the co-extruded window has better heat preservation and sound insulation performance and is convenient to maintain. Disadvantages of co-extruded windows: 1. PVC is adopted as the outer surface of the co-extrusion section, the ageing resistance is poor, and yellowing phenomenon is easy to occur on the outer surface of the chamber; 2. when the co-extruded sections are combined into doors and windows, the inner liners are not welded together in a closed mode, and the strength of assembly points is relatively low; 3. the assembly process is relatively complex, and the processing period is long; 4. the accessory cannot be directly connected to the lining, the foaming PVC has low strength, and the hardware is easy to loosen and fall off when connected; 5. compared with the insulation performance of the broken bridge aluminum alloy window, the co-extruded section is more excellent, but still cannot meet the related requirements of new specifications.

The heat-insulating door and window section bar comprises an aluminum alloy and organic material composite section bar, the section bar is mainly divided into two types, the section of the profile is similar to a broken bridge aluminum alloy window in section form, and another type of profile adopts a polyester material as a broken bridge heat insulation material. The profile has the advantages that: the heat insulation and sound insulation composite material has good heat insulation and sound insulation performances, attractive decorative surfaces, strong mechanical properties and ageing resistance and convenient maintenance. First profile disadvantage: 1. the first section still uses nylon 66 as bridge-cut-off material, the multi-layer arrangement and the widening arrangement are adopted, the heat transfer mode is still linear heat transfer, and the nylon still has larger heat conductivity; 2. the heat-insulating material filled in the cavity formed by the aluminum material and the nylon needs to be shaped and processed in advance, and is filled in the process of producing the section bar or processing the door window, so that the process is complex; 3. the large-section aluminum alloy section is used, the process is complex, and the overall manufacturing cost is increased. 4. The whole window has high price and is more unacceptable in the market. Second profile disadvantage: 1. the second section uses a material with low heat conduction performance as a core material, and aluminum alloy is matched with two sides, and the mechanical property of the second section is far lower than that of the bridge-cut-off aluminum alloy section because the aluminum alloy is only used as a decorative material; 2. the section bar core material is a mould directional foaming support, the mould is dismantled until the section bar is shaped, and the directional foaming time is long, so that a large number of moulds are needed to meet the production requirement, the cost is increased intangibly, and the production period is prolonged; 3. the main connection mode of the corners is bonding when the profile is used for processing doors and windows, the corner strength is low, and gaps are easy to appear at the corners; 4. in order to ensure the overall mechanical property of the window, the section of the section bar is larger, and the material cost is increased; 5. the whole window has high price and is unacceptable in the market.

Disclosure of Invention

The utility model provides a PET core material and aluminum alloy composite section bar and a door and window for solving one or more of the technical problems.

The technical scheme for solving the technical problems is as follows: the utility model provides a PET core material and aluminum alloy composite section bar, includes first aluminum alloy section bar, second aluminum alloy section bar, PET core material and buckle, first aluminum alloy section bar and second aluminum alloy section bar interval arrangement, the PET core material is fixed between first aluminum alloy section bar and the second aluminum alloy section bar, the buckle is installed on the lateral wall of PET core material, the week side edge of buckle respectively with first aluminum alloy section bar and second aluminum alloy section bar are reserved and are left first interval and second interval.

The beneficial effects of the utility model are as follows: according to the PET core material and aluminum alloy composite section bar, aluminum alloy is used at two sides, the aluminum alloy section bar is used as a main stress member in the whole door and window, and the PET core material is arranged between the aluminum alloy sections and is used as a force transmission and heat preservation and insulation member. The PET core material and the aluminum alloy composite section bar have light dead weight, are convenient to transport and install, have high mechanical strength, and ensure that the door and window has excellent overall mechanical, airtight and watertight properties. And PET is used as a core material of the integral section bar to replace a nylon strip of the traditional door and window section bar, so that the heat transfer coefficient of the section bar is reduced. Because the heat transfer coefficient of the buckle plate is higher than that of the PET core material, the buckle plate and the aluminum alloy section bar are arranged at intervals, so that the aluminum alloy and the buckle plate are not in direct contact, and the heat transfer efficiency is reduced.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, one side of the first aluminum alloy section bar towards the second aluminum alloy section bar is provided with a first assembly groove, one side of the second aluminum alloy section bar towards the first aluminum alloy section bar is provided with a second assembly groove, and two opposite sides of the PET core material are respectively and fixedly assembled in the first assembly groove and the second assembly groove.

The beneficial effects of adopting the further scheme are as follows: the PET core material of the assembly groove is matched, so that the aluminum alloy profile and the PET core material can be stably and tightly matched.

Further, be equipped with the grafting groove on the lateral wall of PET core, be equipped with the grafting strip on the buckle, the buckle laminating is in on the lateral wall of PET core, the grafting strip adaptation of buckle is pegged graft in the grafting groove.

The beneficial effects of adopting the further scheme are as follows: the splicing groove is matched with the splicing strip, so that the buckle plate and the PET core material can be stably matched and assembled.

Further, at least two splicing strips are arranged on each buckle plate, and every two adjacent splicing strips are arranged in parallel at intervals; at least two inserting grooves are formed in the PET core material, corresponding to each buckle plate, and at least two inserting strips on the buckle plates are inserted into the corresponding inserting grooves in a one-to-one correspondence mode.

Further, the PET core material is provided with two opposite outer side walls, and each outer side wall is provided with a buckle plate.

Further, the two outer sidewalls of the PET core material are arranged relatively parallel.

Further, be equipped with the mounting groove on the lateral wall of PET core, the buckle adaptation is assembled in the mounting groove, just a side that the PET core was kept away from to the buckle with the lateral wall parallel and level of PET core.

The beneficial effects of adopting the further scheme are as follows: the arrangement of the mounting groove is beneficial to the stable mounting between the buckle plate and the PET core material, and the buckle plate is not protruded out of the outer side wall of the PET core material.

Further, the buckle plate is a hard plastic buckle plate.

Further, the PET core material is fixedly connected with the first aluminum alloy section bar and the second aluminum alloy section bar respectively through bonding glue or screws; the buckle plate is fixedly connected with the first aluminum alloy section bar and the second aluminum alloy section bar respectively through bonding glue or screws.

A door and window comprises the PET core material and an aluminum alloy composite section.

The beneficial effects of the utility model are as follows: the door and window disclosed by the utility model has the advantages of low heat transfer efficiency, simple processing and assembling process, mature process, convenience in processing and complete matched equipment, and can be directly produced by the existing door and window processing factories, wherein the processing and assembling method of the door and window is the same as that of the broken bridge aluminum alloy window.

Drawings

FIG. 1 is a schematic diagram of a structure of an aluminum alloy section bar matched with a PET core material;

FIG. 2 is a schematic diagram of a PET core material and aluminum alloy composite section bar according to the present utility model;

fig. 3 is a schematic structural diagram II of the PET core material and aluminum alloy composite section bar of the utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a first aluminum alloy profile; 11. aluminum alloy corner brace; 2. a second aluminum alloy profile; 3. a PET core material; 31. a first interval; 32. a second interval; 33. a plug-in groove; 34. a mounting groove; 4. a first buckle plate; 41. a second buckle plate; 42. a plug strip; 5. and (5) adhesive glue.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

As shown in fig. 1 to 3, a PET core material and aluminum alloy composite profile of this embodiment includes a first aluminum alloy profile 1, a second aluminum alloy profile 2, a PET core material 3 and a buckle plate, the first aluminum alloy profile 1 and the second aluminum alloy profile 2 are arranged at intervals, the PET core material 3 is fixed between the first aluminum alloy profile 1 and the second aluminum alloy profile 2, the buckle plate is mounted on the outer side wall of the PET core material 3, and a first interval 31 and a second interval 32 are reserved on the peripheral edge of the buckle plate and the first aluminum alloy profile 1 and the second aluminum alloy profile 2 respectively. The first aluminum alloy section bar 1 and the second aluminum alloy section bar 2 are respectively provided with an aluminum alloy corner brace 11, and the corners are weak in weak points, so that the whole window is high in strength and not easy to deform.

As shown in fig. 1 to 3, a first assembly groove is formed in a side, facing the second aluminum alloy section bar 2, of the first aluminum alloy section bar 1 in this embodiment, a second assembly groove is formed in a side, facing the first aluminum alloy section bar 1, of the second aluminum alloy section bar 2, and two opposite sides of the PET core material 3 are respectively and fixedly assembled in the first assembly groove and the second assembly groove. The PET core material of the assembly groove is matched, so that the aluminum alloy profile and the PET core material can be stably and tightly matched.

As shown in fig. 1 to 3, the outer side wall of the PET core 3 in this embodiment is provided with a plugging slot 33, the buckle plate is provided with a plugging strip 42, the buckle plate is attached to the outer side wall of the PET core 3, and the plugging strip 42 of the buckle plate is adaptively plugged in the plugging slot 33. The splicing groove is matched with the splicing strip, so that the buckle plate and the PET core material can be stably matched and assembled.

As shown in fig. 1 to 3, each buckle plate of the embodiment is provided with at least two plugging strips 42, and two adjacent plugging strips 42 are arranged in parallel at intervals; at least two inserting grooves 33 are formed in the PET core material 3 corresponding to each buckle plate, and at least two inserting strips 42 on the buckle plates are inserted into the corresponding inserting grooves 33 in a one-to-one correspondence mode.

As shown in fig. 1 to 3, the PET core 3 of the present embodiment has two opposite outer side walls, each of which is provided with a buckle plate, and the two buckle plates are a first buckle plate 4 and a second buckle plate 41, and the first buckle plate 4 and the second buckle plate 41 are arranged in parallel. The two buckle plates are respectively arranged on the upper side and the lower side of the PET core material, so that the PET material can be protected from being exposed to the air, and the PET core material can also be used as a section bar auxiliary material connecting structure.

As shown in fig. 1 to 3, the two outer side walls of the PET core material 3 of the present embodiment are arranged in parallel.

As shown in fig. 1 to 3, the outer side wall of the PET core 3 in this embodiment is provided with a mounting groove 34, the buckle plate is fit in the mounting groove 34, and a side surface of the buckle plate away from the PET core 3 is flush with the outer side wall of the PET core 3. The arrangement of the mounting groove is beneficial to the stable mounting between the buckle plate and the PET core material, and the buckle plate is not protruded out of the outer side wall of the PET core material.

Preferably, the buckle plate in this embodiment is a rigid plastic buckle plate.

As shown in fig. 1 to 3, the PET core material 3 in the embodiment is fixedly connected with the first aluminum alloy section bar 1 and the second aluminum alloy section bar 2 through an adhesive 5 or a screw respectively; the buckle plate is fixedly connected with the first aluminum alloy section bar 1 and the second aluminum alloy section bar 2 through bonding glue 5 or screws respectively. When the buckle plate is installed, a layer of adhesive 5 can be smeared on the inserting strip 42 of the buckle plate and then inserted into the corresponding inserting groove 33 for connection and fixation.

The facing of the first aluminum alloy section bar 1 and the second aluminum alloy section bar 2 of the embodiment adopts fluorocarbon paint, and the appearance is attractive, the selection is various, and the aging resistance is strong. The volume weight of the PET core material is 200kg/m ³ The above-mentioned materials have a compressive strength of 3.2MPa, a shear strength of 1.4MPa, a tensile strength of 2.2MPa and a thermal conductivity of 0.037W/mK. The stress performance of the core material can ensure that the inner and outer parts of the aluminum alloy section bar are stressed together, and simultaneously, the heat conduction performance of the whole section bar is improved.

The PET core material and aluminum alloy composite section bar of the embodiment has excellent heat insulation performance, and the heat transfer coefficient K=0.58W/(m) ² K is less than or equal to PVC plastic K=1.4W/(m) ² K is less than or equal to wood frame K=2.37W/(m) ² K is less than or equal to broken bridge aluminum alloy K=3.1W/(m) ² K is less than or equal to K=6.21W/(m) of common aluminum alloy ² ·K)。

The PET core material and the aluminum alloy composite section bar of the embodiment use aluminum alloy on two sides, the aluminum alloy section bar is used as a main stress member in the whole door and window, and the PET core material is arranged between the aluminum alloys and used as a force transmission and heat preservation and insulation member. The PET core material and the aluminum alloy composite section bar have light dead weight, are convenient to transport and install, have high mechanical strength, and ensure that the door and window has excellent overall mechanical, airtight and watertight properties. And PET is used as a core material of the integral section bar to replace a nylon strip of the traditional door and window section bar, so that the heat transfer coefficient of the section bar is reduced. Because the heat transfer coefficient of the buckle plate is higher than that of the PET core material, the buckle plate and the aluminum alloy section bar are arranged at intervals, so that the aluminum alloy and the buckle plate are not in direct contact, and the heat transfer efficiency is reduced.

The embodiment also provides a door and window, which comprises the PET core material and aluminum alloy composite section bar. The hardware of the door and window can be directly installed on the aluminum alloy section bar, and the installation is convenient and firm. The profile has light dead weight, low requirement on mechanical property of door and window hardware and smooth door and window opening. The door and window production process is mature, the production equipment is complete, the processing investment is low, the cost and the manufacturing cost are low, the price of the finished window is low, and the market competitiveness is high.

The door and window of this embodiment has low heat transfer efficiency, simple processing and assembling technique, the door and window processing and assembling method is the same as bridge cut-off aluminum alloy window, the technique is mature, the processing is convenient, the matched equipment is complete, the existing door and window processing factory can directly produce.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. The utility model provides a PET core material and aluminum alloy composite section bar, its characterized in that includes first aluminum alloy section bar, second aluminum alloy section bar, PET core material and buckle, first aluminum alloy section bar and second aluminum alloy section bar interval arrangement, the PET core material is fixed between first aluminum alloy section bar and the second aluminum alloy section bar, the buckle is installed on the lateral wall of PET core material, the week side edge of buckle respectively with first aluminum alloy section bar and second aluminum alloy section bar are reserved first interval and second interval.

2. The PET core material and aluminum alloy composite profile according to claim 1, wherein a first assembly groove is formed in one side, facing towards a second aluminum alloy profile, of the first aluminum alloy profile, a second assembly groove is formed in one side, facing towards the first aluminum alloy profile, of the second aluminum alloy profile, and two opposite sides of the PET core material are fixedly assembled in the first assembly groove and the second assembly groove respectively.

3. The PET core material and aluminum alloy composite section bar according to claim 1, wherein a plugging groove is formed in the outer side wall of the PET core material, a plugging strip is arranged on the buckle plate, the buckle plate is attached to the outer side wall of the PET core material, and the plugging strip of the buckle plate is in fit plugging in the plugging groove.

4. A PET core material and aluminum alloy composite profile according to claim 3, wherein each buckle plate is provided with at least two splicing bars, and two adjacent splicing bars are arranged in parallel at intervals; at least two inserting grooves are formed in the PET core material, corresponding to each buckle plate, and at least two inserting strips on the buckle plates are inserted into the corresponding inserting grooves in a one-to-one correspondence mode.

5. The PET core and aluminum alloy composite section bar according to claim 1, wherein the PET core has two opposite outer side walls, and each outer side wall is provided with a buckle plate.

6. The PET core and aluminum alloy composite profile according to claim 5, wherein two outer side walls of the PET core are arranged relatively in parallel.

7. The PET core material and aluminum alloy composite profile according to claim 1, wherein an installation groove is formed in the outer side wall of the PET core material, the buckle plate is assembled in the installation groove in an adaptive mode, and one side surface, away from the PET core material, of the buckle plate is flush with the outer side wall of the PET core material.

8. The PET core and aluminum alloy composite profile of claim 1, wherein the gusset is a rigid plastic gusset.

9. The PET core material and aluminum alloy composite section bar according to claim 1, wherein the PET core material is fixedly connected with the first aluminum alloy section bar and the second aluminum alloy section bar respectively through bonding glue or screws; the buckle plate is fixedly connected with the first aluminum alloy section bar and the second aluminum alloy section bar respectively through bonding glue or screws.

10. A door or window comprising the PET core material and aluminum alloy composite profile according to any one of claims 1 to 9.