Novel broken bridge profile for door and window frame and novel broken bridge profile door and window

By using main profiles and inner aluminum profiles made of high-hard metal in doors and windows, combined with the outer functional layer of aluminum, the problem of insufficient wind pressure resistance of existing broken bridge aluminum profiles is solved, achieving higher wind resistance and aesthetics, while controlling costs.

CN119593671APending Publication Date: 2025-03-11FOSHAN NANHAI YIXING COPPER CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202411854678.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-03-11

AI Technical Summary

Technical Problem

The existing broken bridge aluminum profile doors and windows have low wind pressure resistance, which is difficult to meet the needs of improving the wind resistance of doors and windows.

Method used

New broken bridge profiles are adopted, including main profiles made of high-hard metal and inner aluminum profiles connected to the barrier layer. The outer functional layer is made of aluminum. The barrier layer blocks heat and sound conduction, and enhances the wind pressure resistance of doors and windows.

Benefits of technology

It improves the wind pressure resistance of doors and windows, while controlling costs, enhancing market applicability, and carving complex patterns on the main profile to enhance product aesthetics.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119593671A_ABST
    Figure CN119593671A_ABST
Patent Text Reader

Abstract

The invention discloses a novel broken bridge profile for a door and window frame and a novel broken bridge profile door and window, comprising a barrier layer, an inner functional layer connected to the inner side of the barrier layer and an outer functional layer connected to the outer side of the barrier layer, the inner functional layer comprises a main body profile made of high-hardness metal and an inner aluminum profile connected with the barrier layer, the main body profile is made of high-hardness metal, so that the wind pressure resistance of the door and window is improved. The outer functional layer located outdoors is still of an aluminum material structure, so that the product cost can be well controlled, the outdoor surface is a main structure with the drainage performance, and the extension performance of aluminum is relatively more suitable for design and production of the drainage structure. The inner functional layer adopts the inner aluminum profile to connect with the barrier layer, compared with a copper material, the cost can be reduced, the inner aluminum profile needs to be provided with a connecting structure used for being connected with the barrier layer, the extension performance of aluminum is relatively more suitable for design and production of the connecting structure, and it can be ensured that the profiles connected to the two sides of the barrier layer are profiles made of the same material.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the field of door and window profiles, and in particular to a novel thermal break profile for door and window frames and a novel thermal break profile door and window. Background Art

[0002] Since aluminum alloy is easy to extrude, light and strong, existing doors and windows are basically made of aluminum. The "bridge" in the name "broken bridge aluminum" refers to the "cold and hot bridge" in the sense of materials science, and the word "break" means action, that is, "breaking the cold and hot bridge". Specifically, because aluminum alloy is a metal and conducts heat quickly, when the indoor and outdoor temperatures differ greatly, aluminum alloy can become a "bridge" for transferring heat. Such materials are made into doors and windows, and their thermal insulation performance is not good. Broken bridge aluminum is to break the aluminum alloy in the middle, and it uses hard plastic to connect the broken aluminum alloy into one. The thermal conductivity of plastic is obviously worse than that of metal, so it is not easy for heat to pass through the entire material, and the thermal insulation and sound insulation performance of the material are improved. This is the origin of the name "broken bridge aluminum (alloy)". Broken bridge aluminum profiles are often used in doors and windows. Broken bridge aluminum alloy doors and windows have the advantages of thermal insulation, sound insulation and noise reduction, and good sealing.

[0003] The existing thermally-broken aluminum profile door and window frames generally include two aluminum profiles (inner functional layer and outer functional layer) and the inner and outer aluminum profiles are connected by heat insulation strips (barrier layers), so that the heat insulation strips can block the heat from the outer aluminum profile to the inner aluminum profile, thus achieving a heat insulation effect. However, the Webster hardness of aluminum 6063-T5 is between 8-12HW (the Webster hardness of 6 series aluminum is between 8-16HW), which is relatively low, resulting in low wind pressure resistance of doors and windows. The wind pressure resistance of existing thermally-broken profiles needs to be improved. Summary of the invention

[0004] The main purpose of the present invention is to provide a new type of thermal break profile for door and window frames and a new type of thermal break profile door and window, aiming to enhance the wind pressure resistance of doors and windows while taking into account the cost. The present invention proposes a new type of thermal break profile for door and window frames, comprising a barrier layer, an inner functional layer connected to the inner side of the barrier layer, and an outer functional layer connected to the outer side of the barrier layer, wherein the inner functional layer comprises a main profile made of high-hardness metal and an inner aluminum profile connected to the barrier layer, and the outer functional layer is an outer aluminum profile made of aluminum.

[0005] Preferably, the main body profile is made of copper alloy.

[0006] Preferably, the copper alloy is a copper-zinc alloy added with lead, wherein the lead accounts for 1-3% and the copper accounts for 50%-56%; the melting temperature of the copper alloy is 1100-1200°C and the refining temperature is 1050-1100°C.

[0007] Preferably, the copper alloy is extruded by an extruder to form the main body profile, the extrusion temperature is 780-870° C., and the extrusion speed is 15-40 mm / s.

[0008] Preferably, the barrier layer includes two connecting rubber strips, and the inner aluminum profile and the outer aluminum profile are provided with clamping grooves on both sides of the opposite surfaces along the length direction, and the two opposite clamping grooves on the same side form a clamping groove group, and the two sides of the connecting rubber strip are provided with clamping parts adapted to the clamping grooves, and the two connecting rubber strips are respectively connected to the two clamping groove groups through the clamping parts, so that the inner aluminum profile, the barrier layer and the outer aluminum profile are connected.

[0009] Preferably, the cross-sections of the clamping groove and the clamping portion are dovetail-shaped.

[0010] Preferably, the main body profile is connected to the inner aluminum profile.

[0011] Preferably, the main body profile and the inner aluminum profile are plugged into each other on both sides of the opposite surfaces in the length direction through a plug-in structure, and a fixed connecting piece for pressing and fixing the plug-in structure is provided; The plug-in structure limits the main body profile and the inner aluminum profile to be in horizontal contact with each other in the width direction and cannot be separated horizontally in the width direction; the fixed connecting piece limits the main body profile and the inner aluminum profile to be unable to be separated in the height direction.

[0012] Preferably, the plug-in structure includes a first plug-in slot open along the length direction and a first plug-in portion plugged and assembled with the first plug-in slot, one of the first plug-in slot and the first plug-in portion is arranged on the main profile, and the other is arranged on the inner aluminum profile; the first plug-in portion is inserted into the first plug-in slot from the end of the first plug-in slot along the length direction, and the first plug-in slot includes a blocking portion that blocks the first plug-in portion from being pulled out horizontally in the width direction.

[0013] Preferably, second plug-in slots are formed on both sides of the relative surfaces between the main body profile and the inner aluminum profile, and are located in front of the plug-in structure, and the fixed connecting piece is plugged into the second plug-in slot; the second plug-in slot is composed of a second plug-in slot component part one located on the main body profile and a second plug-in slot component part two located on the inner aluminum profile. The present invention further proposes a new type of thermal break profile door and window, including a bottom frame, a wire pressing seat, a wire pressing cover and glass. The bottom frame adopts a new type of thermal break profile, and the new type of thermal break profile includes a barrier layer, an inner functional layer connected to the inner side of the barrier layer and an outer functional layer connected to the outer side of the barrier layer. The inner functional layer includes a main profile made of high-hardness metal and an inner aluminum profile connected to the barrier layer, and the outer functional layer is an outer aluminum profile made of aluminum. The wire pressing seat is arranged on the inner functional layer, and the wire pressing cover is arranged on the wire pressing seat. The outer side of the outer aluminum profile has a glass limiting wall extending upward, and the glass limiting wall and the wire pressing cover relatively form a glass installation position for installing glass; the wire pressing seat and the wire pressing cover are made of the same material as the main profile.

[0014] Preferably, the main body profile is made of copper alloy.

[0015] Preferably, the copper alloy is a copper-zinc alloy added with lead, wherein the lead accounts for 1-3% and the copper accounts for 50%-56%; the melting temperature of the copper alloy is 1100-1200°C and the refining temperature is 1050-1100°C.

[0016] Preferably, the copper alloy is extruded by an extruder to form the main body profile, the extrusion temperature is 780-870° C., and the extrusion speed is 15-40 mm / s.

[0017] Preferably, the barrier layer includes two connecting rubber strips, and the inner aluminum profile and the outer aluminum profile are provided with clamping grooves on both sides of the opposite surfaces along the length direction, and the two opposite clamping grooves on the same side form a clamping groove group, and the two sides of the connecting rubber strip are provided with clamping parts adapted to the clamping grooves, and the two connecting rubber strips are respectively connected to the two clamping groove groups through the clamping parts, so that the inner aluminum profile, the barrier layer and the outer aluminum profile are connected.

[0018] Preferably, the cross-sections of the clamping groove and the clamping portion are dovetail-shaped.

[0019] Preferably, the main body profile is connected to the inner aluminum profile.

[0020] Preferably, the main body profile and the inner aluminum profile are plugged into each other on both sides of the opposite surfaces in the length direction through a plug-in structure, and a fixed connecting piece for pressing and fixing the plug-in structure is provided; The plug-in structure limits the main body profile and the inner aluminum profile to be in horizontal contact with each other in the width direction and cannot be separated horizontally in the width direction; the fixed connecting piece limits the main body profile and the inner aluminum profile to be unable to be separated in the height direction.

[0021] Preferably, the plug-in structure includes a first plug-in slot open along the length direction and a first plug-in portion plugged and assembled with the first plug-in slot, one of the first plug-in slot and the first plug-in portion is arranged on the main profile, and the other is arranged on the inner aluminum profile; the first plug-in portion is inserted into the first plug-in slot from the end of the first plug-in slot along the length direction, and the first plug-in slot includes a blocking portion that blocks the first plug-in portion from being pulled out horizontally in the width direction.

[0022] Preferably, second plug-in slots are formed on both sides of the relative surfaces between the main body profile and the inner aluminum profile, and are located in front of the plug-in structure, and the fixed connecting piece is plugged into the second plug-in slot; the second plug-in slot is composed of a second plug-in slot component part one located on the main body profile and a second plug-in slot component part two located on the inner aluminum profile. The beneficial effects of the present invention are: The inner functional layer of the new thermal break profile proposed by the present invention includes a main profile made of high-hardness metal and an inner aluminum profile connected to the barrier layer. The main profile is made of high-hardness metal and can be applied to doors and windows to improve the wind pressure resistance of doors and windows. When applied to doors and windows, the outer functional layer is located outdoors and still uses aluminum material structure, which can better control product costs and increase market applicability. In addition, the outdoor surface is the main structure of drainage performance, and the extension performance of aluminum is relatively more suitable for the design and production of drainage structures.

[0023] The inner functional layer uses inner aluminum profiles to connect to the barrier layer. Compared with copper materials, this can reduce costs. In addition, a connection structure for connecting to the barrier layer needs to be set on the inner aluminum profile. The elongation performance of aluminum is relatively more suitable for the design and production of the connection structure, and it can also ensure that the profiles connected on both sides of the barrier layer are of the same material.

[0024] The new thermal break profile door and window proposed by the present invention adopts the above-mentioned new thermal break profile, has enhanced wind pressure resistance, and can carve more complex and dense patterns on the main profile, thereby improving the aesthetics of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic cross-sectional view of the main body profile in an embodiment of the present invention.

[0026] Figure 2 Schematic diagram of the cross section of the inner aluminum profile in an embodiment of the present invention.

[0027] Figure 3 Schematic diagram of the cross section of the aluminum profile in the embodiment of the present invention.

[0028] Figure 4 It is a schematic cross-sectional view of the novel thermal break profile in an embodiment of the present invention when no fixed connecting piece is installed.

[0029] Figure 5 It is a schematic cross-sectional view of a novel thermal break profile in an embodiment of the present invention.

[0030] Figure 6 Schematic diagram of the cross section of the wire crimping seat in the embodiment of the present invention.

[0031] Figure 7 Schematic diagram of the cross section of the wire crimping cover in an embodiment of the present invention.

[0032] Figure 8 It is a schematic cross-sectional view of a new type of thermal break profile door and window in an embodiment of the present invention.

[0033] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0035] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. Figure 1-8 , clearly and completely describe the technical solutions in the embodiments of the present application.

[0037] The embodiment of the present invention provides a new type of thermal insulation profile for door and window frames, including a barrier layer, an inner functional layer connected to the inner side of the barrier layer, and an outer functional layer connected to the outer side of the barrier layer. The barrier layer blocks the conduction of heat and sound between the inner functional layer and the outer functional layer, thereby achieving the functions of heat insulation, sound insulation and noise reduction. The inner functional layer includes a main profile 1 made of high-hardness metal and an inner aluminum profile 2 connected to the barrier layer, and the main profile 1 is connected to the inner aluminum profile 2. The outer functional layer is an outer aluminum profile 3 made of aluminum.

[0038] The main profile 1 is made of copper alloy. Copper alloy is a copper-zinc alloy, also known as brass. The Webster hardness of brass can reach 130-165HV. Compared with aluminum alloy, the hardness of copper has higher wind pressure resistance. The main profile 1 is made of brass, which improves the wind pressure resistance of doors and windows, and can be engraved with more complex and dense patterns, thereby improving the aesthetics of the product.

[0039] The external functional layer located outdoors still uses an aluminum material structure, which can better control product costs and increase market applicability. In addition, the outdoor surface is the main structure for drainage performance, and the elongation of aluminum is relatively more suitable for the design and production of drainage structures.

[0040] The inner functional layer uses an inner aluminum profile 2 to connect to the barrier layer. Compared with the use of copper materials, it can not only reduce costs, but also a connecting structure for connecting to the barrier layer needs to be set on the inner aluminum profile 2. The elongation performance of aluminum is relatively more suitable for the design and production of the connecting structure, and it can also ensure that the profiles connected on both sides of the barrier layer are profiles of the same material.

[0041] Lead is added to the copper-zinc alloy, which can improve the cutting performance of brass. Among them, the lead accounts for 1-3%, and the copper accounts for 50%-56%, preferably about 54%.

[0042] The melting temperature of copper-zinc alloy is 1100-1200℃, which is conducive to the full melting and alloying of various raw materials. After the metal is melted, refining agent is added, and the refining temperature is 1050-1100℃. The refining time is about 10-20 minutes. The purpose is to remove gases (such as hydrogen) and inclusions in the melt and improve the quality of the alloy.

[0043] The copper-zinc alloy is extruded into the main profile through an extruder. The extrusion temperature is 780-870℃. Within this temperature range, lead brass has good plasticity, which is conducive to extrusion molding. The extrusion speed is 15-40mm / s. The extrusion speed cannot be too fast or too slow. A slower extrusion speed helps to ensure the quality of the extruded product and avoid defects such as surface cracks, but it will affect production efficiency, while a faster speed may cause uneven deformation.

[0044] The barrier layer includes two connecting rubber strips 4. The inner aluminum profile 2 and the outer aluminum profile 3 are provided with clamping grooves 24 and 31 on both sides of the opposite surfaces along the length direction. The two opposite clamping grooves 24 and 31 on the same side of the inner aluminum profile 2 and the outer aluminum profile 3 form a clamping groove group. The two sides of the connecting rubber strip 4 are provided with clamping parts 41 adapted to the clamping grooves. The clamping part 41 on one side of the connecting rubber strip 4 is clamped into the clamping groove 24 on the inner aluminum profile 2, and the clamping part 41 on the other side is clamped into the clamping groove 31 on the outer aluminum profile 3. The two connecting rubber strips 4 are respectively connected to the two clamping groove groups through the clamping parts 41, so that the inner aluminum profile 2, the barrier layer and the outer aluminum profile 3 are connected, and the assembly is convenient.

[0045] The cross-sections of the clamping groove 24 , the clamping groove 31 and the clamping portion 41 are dovetail-shaped, and the two are not easily separated after being combined, and the structure is stable.

[0046] The inner aluminum profile 2 and the outer aluminum profile 3 are provided with openings on the opposite sides along the length direction, and the openings are located between the two groups of clamping grooves. The two openings are opposite to each other and are surrounded by the two connecting rubber strips 4 to form a slot 20. The barrier layer also includes a barrier rubber strip, which is inserted into the slot 20.

[0047] The main profile 1 and the inner aluminum profile 2 are plugged into each other on both sides of the opposite surfaces in the length direction through a plug-in structure, and a fixed connecting piece 5 is provided for pressing the plug-in structure. The plug-in structure limits the main profile 1 and the inner aluminum profile 2 to abut against each other in the horizontal position in the width direction, and cannot be separated horizontally in the width direction; the fixed connecting piece 5 limits the main profile 1 and the inner aluminum profile 2 to be unable to separate in the height direction.

[0048] The plug-in structure includes a first plug-in slot 21 opened along the length direction and a first plug-in portion 11 plugged and assembled with the first plug-in slot 21. The first plug-in portion 11 is arranged on the main body profile 1, and the first plug-in slot 21 is arranged on the inner aluminum profile 2. The first plug-in portion 11 is inserted into the first plug-in slot 21 from the end opening of the first plug-in slot 21 along the length direction, and the main body profile 1 and the inner aluminum profile 2 are easily assembled. The first plug-in slot 21 includes a blocking portion 22 that blocks the first plug-in portion 11 from being pulled out horizontally in the width direction. The blocking portion 22 abuts against the side of the first plug-in portion 11, and the blocking portion 22 blocks the first plug-in portion 11 from being pulled out horizontally in the width direction.

[0049] The second plug-in slot 10 located in front of the plug-in structure is formed on both sides of the opposite surface between the main profile 1 and the inner aluminum profile 2. The second plug-in slot 10 is composed of a second plug-in slot component part 12 located on the main profile 1 and a second plug-in slot component part 23 located on the inner aluminum profile 2. The fixed connecting piece 5 is inserted into the second plug-in slot 10, and the fixed connecting piece 5 is pressed on the first plug-in part 11, so that the first plug-in part 11 cannot be pulled out from the opening in the length direction of the first plug-in slot 21, and the main profile 1 and the inner aluminum profile 2 cannot be separated in the height direction, so that the main profile 1 and the inner aluminum profile 2 are firmly connected.

[0050] As shown in the figure, this profile is applied to casement doors and windows, a wire pressing seat 4 is arranged on the inner functional layer, a wire pressing cover 7 is arranged on the wire pressing seat 6, and glass 8 is installed between the opposite surfaces of the outer aluminum profile 3 and the wire pressing cover 7, so as to form a new type of broken bridge profile door and window. The outer side of the outer aluminum profile 3 has a glass limiting wall 32 extending upward, and a glass installation position for installing glass is formed between the glass limiting wall 32 and the wire pressing cover 7. The glass 8 is installed in the glass installation position, and a seal is installed between the glass 8 and the wire pressing cover 7, and a seal is installed between the glass 8 and the glass limiting wall 32. Furthermore, the wire pressing seat 6 and the wire pressing cover 7 are connected by plugging, and the wire pressing seat 6 and the wire pressing cover 7 are also made of brass material, which further improves the wind pressure resistance of the doors and windows. The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A new type of thermal insulation profile for door and window frames, comprising a barrier layer, an inner functional layer connected to the inner side of the barrier layer, and an outer functional layer connected to the outer side of the barrier layer, characterized in that: The inner functional layer comprises a main body profile made of high-hardness metal and an inner aluminum profile connected to the barrier layer, and the outer functional layer is an outer aluminum profile made of aluminum.

2. The new thermal break profile for door and window frames according to claim 1 is characterized in that: The main body profile is made of copper alloy, and the copper alloy is a copper-zinc alloy added with lead.

3. The new thermal break profile for door and window frames according to claim 2 is characterized in that: The lead content of the copper-zinc alloy is 1-3%, and the copper content is 50%-56%. The melting temperature of the copper alloy is 1100-1200°C, and the refining temperature is 1050-1100°C.

4. The new thermal break profile for door and window frames according to claim 3 is characterized in that: The copper alloy is extruded by an extruder to form the main body profile, the extrusion temperature is 780-870° C., and the extrusion speed is 15-40 mm / s.

5. The new thermal break profile for door and window frames according to claim 2 is characterized in that: The barrier layer includes two connecting rubber strips, and the inner aluminum profile and the outer aluminum profile are provided with clamping grooves on both sides of the opposite surfaces along the length direction. The two opposite clamping grooves on the same side form a clamping groove group. The two sides of the connecting rubber strip are provided with clamping parts adapted to the clamping grooves. The two connecting rubber strips are respectively connected to the two clamping groove groups through the clamping parts, so that the inner aluminum profile, the barrier layer and the outer aluminum profile are connected.

6. The new thermal break profile for door and window frames according to claim 5 is characterized in that: The cross sections of the clamping groove and the clamping portion are dovetail shaped.

7. The new thermal break profile for door and window frames according to any one of claims 2 to 6, characterized in that: The main body profile is connected to the inner aluminum profile, and the main body profile and the inner aluminum profile are plugged into each other on both sides of the opposite surfaces in the length direction through a plug-in structure, and a fixed connecting piece for pressing and fixing the plug-in structure is provided; The plug-in structure limits the main body profile and the inner aluminum profile to be in horizontal contact with each other in the width direction and cannot be separated horizontally in the width direction; the fixed connecting piece limits the main body profile and the inner aluminum profile to be unable to be separated in the height direction.

8. The new thermal break profile for door and window frames according to claim 7 is characterized in that: The plug-in structure includes a first plug-in slot opened along the length direction and a first plug-in portion plugged and assembled with the first plug-in slot, one of the first plug-in slot and the first plug-in portion is arranged on the main profile, and the other is arranged on the inner aluminum profile; the first plug-in portion is inserted into the first plug-in slot from the end of the first plug-in slot along the length direction, and the first plug-in slot includes a blocking portion that blocks the first plug-in portion from being pulled out horizontally in the width direction.

9. The new thermal break profile for door and window frames according to claim 8, characterized in that: A second plugging slot is formed on both sides of the opposite surfaces between the main body profile and the inner aluminum profile, and is located in front of the plug-in structure. The fixed connecting piece is plugged into the second plugging slot; the second plugging slot is composed of a second plugging slot component part 1 located on the main body profile and a second plugging slot component part 2 located on the inner aluminum profile.

10. A new type of thermal break profile door and window, characterized in that: It includes a bottom frame, a wire pressing seat, a wire pressing cover and glass, the bottom frame adopts the new thermal insulation profile described in any one of claims 1 to 9, the wire pressing seat is arranged on the inner functional layer, the wire pressing cover is arranged on the wire pressing seat, the outer side of the outer aluminum profile has a glass limiting wall extending upward, and the glass limiting wall and the wire pressing cover relatively form a glass installation position for installing glass; the wire pressing seat, the wire pressing cover and the main profile are made of the same material.