A multi-cavity composite sliding door leaf profile

Abstract

This utility model discloses a multi-cavity composite sliding door inner sash profile, comprising an inner sash frame main profile. Each of the four frame edges of the inner sash frame main profile includes inner and outer profiles, with structural cavities formed on opposite sides of the inner and outer profiles. The inner and outer profiles are connected at the structural cavities by multi-cavity nylon strips. During frame forming, adjacent frame edges are chamfered at their corners, and corner brackets are used to connect and fix the frame within the structural cavities at the chamfered corners. A tempered glass mounting groove is pre-reserved within the corresponding multi-cavity nylon strip on the inner side of the formed inner sash frame main profile; a structural accessory mounting groove is pre-reserved on the outer side of the corresponding multi-cavity nylon strip on the inner side of the frame. This utility model, through optimized structural design, not only enhances the overall strength and stability of the sliding door inner sash but also effectively improves sound insulation, heat preservation, and sealing performance.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum alloy door and window profiles, specifically to a multi-cavity composite sliding door inner sash profile. Background Technology

[0002] With the continuous improvement of building energy efficiency standards and the increasing demands of users for door and window performance, sliding door technology has evolved from its initial basic functions to its current high-performance integration. Currently, the inner sash profiles of sliding doors on the market mainly adopt single-cavity aluminum alloy profile structures or asymmetrical double-cavity aluminum alloy profile structures. These products have the following technical characteristics:

[0003] Firstly, single-cavity aluminum alloy profile structures suffer from poor structural stability. For double-cavity aluminum alloy profile structures, traditional sliding door panels typically employ a single-sided cavity cross-section structure. The larger, heavier cavity is used to install hardware and bear the weight of the door, while the smaller auxiliary cavity is used to fix the thermal insulation strip to improve thermal insulation performance. However, the thermal insulation strip in this design is small and directly connected to the outer profile, failing to effectively block the heat conduction path of the aluminum alloy profile. This results in insufficient thermal performance, making it difficult to meet the high K-value parameter requirements, which is inconsistent with the requirements of the "Energy Conservation Design Standard for Civil Buildings".

[0004] Secondly, regardless of whether it's a single-cavity aluminum alloy profile structure or an asymmetrical double-cavity aluminum alloy profile structure, the cross-sectional area of ​​the door leaf cavity is usually small, and the internal support structure of the profile is weak, making it difficult to support the weight of large glass areas or the door leaf. After long-term use, the door leaf is prone to sagging and warping deformation, especially under wind pressure, where its resistance to deformation is weak, which will affect the service life of the sliding door. In addition, due to the limited cavity space, it is impossible to install enough reinforcing ribs, resulting in insufficient profile rigidity. The door leaf may wobble during sliding due to uneven force, which may cause the door to jam or accelerate the wear of hardware accessories (such as pulleys).

[0005] In addition, the glass groove size of the door panel is too small to accommodate the needs of different glass sizes. For example, the combination of 6+12+6 insulated glass with thin-walled profile joints has a weak ability to block sound waves and is difficult to meet the sound insulation standards of the "Code for Sound Insulation Design of Civil Buildings".

[0006] In conclusion, further development of sliding door technology requires addressing key issues such as thermal performance, structural strength, and sound insulation to meet the growing demands for building energy conservation and user performance. Utility Model Content

[0007] The technical problem solved by this utility model is to provide a multi-cavity composite sliding door inner sash profile, which is suitable for civil and commercial building doors and windows with high requirements for sound insulation, heat preservation, strength and sealing, and can be used to solve the defects in the above-mentioned technical background.

[0008] The technical problem solved by this utility model is achieved by the following technical solution:

[0009] A multi-cavity composite sliding door inner sash profile includes an inner sash frame main profile and structural accessories; each of the four frame edges of the inner sash frame main profile includes an inner profile and an outer profile, the inner profile and the outer profile are arranged opposite to each other, and structural cavities are formed on the opposite sides respectively; two sets of nylon pressure strip grooves are formed on the opposite sides of the inner profile and the outer profile at the location of the structural cavities; the inner profile and the outer profile are connected by multi-cavity nylon pressure strips at the location of the nylon pressure strip grooves;

[0010] When the inner fan frame main profile is formed, the adjacent frame edges are chamfered at the corners, and the position is fixed by corner brackets in the structural cavity at the chamfered corners to obtain the formed frame.

[0011] The main profile of the inner fan frame after molding has a tempered glass assembly groove reserved in the corresponding multi-cavity nylon strip on the inner side of the frame; and a structural accessory assembly groove is reserved on the outer side of the corresponding multi-cavity nylon strip on the inner side of the frame.

[0012] As a further limitation, the structural cavity is formed at the midpoint between the inner profile and the outer profile.

[0013] As a further limitation, the structural cavity is preferably a rectangular cavity.

[0014] As a further limitation, the multi-cavity nylon strip has a length of 35.3 mm, a width of not less than 5 mm, and three structural cavities are formed at intervals on the cross-section along its length.

[0015] As a further limitation, the inner and outer profiles are reserved with matching tempered glass mounting side guards and glass pressure line mounting parts at the corresponding tempered glass mounting slot positions.

[0016] As a further limitation, the inner sash frame main profile has a structural accessory mounting groove on the inner side of the vertical frame edge near the door frame, and a siliconized weatherstripping is mounted on the opposite C-shaped groove to meet the sealing requirements of the door frame, thereby further improving the sealing performance of the door and window.

[0017] As a further limitation, the main profile of the inner fan frame has a pre-reserved hook and pin assembly position on the structural accessory assembly slot on the vertical frame edge away from the door frame.

[0018] As a further limitation, the inner frame main profile is fitted with anti-sway blocks through the corresponding C-shaped slots on the inner side of the horizontal frame edge at the top of the door frame. This is done in conjunction with the door frame's guide structure to reduce door shaking during opening and closing, ensuring stable operation of the door.

[0019] As a further limitation, the main profile of the inner door frame is provided with a guide pulley in the structural accessory assembly slot of the horizontal frame edge at the bottom of the corresponding door frame. The smooth sliding of the door leaf during the opening and closing process is achieved through the cooperation of the guide pulley and the guide rail in the door frame, ensuring smooth operation of the door leaf and low noise.

[0020] As a further limitation, a space for mounting pin groove profiles is reserved between the structural cavities on both sides and the multi-cavity nylon pressure strip; the pin groove profiles are assembled through the space for mounting pin groove profiles, and the main profile of the inner fan frame can be fitted with locks at the structural cavities of the outer profiles, and the corresponding lock tongues are fitted through the pin groove profiles.

[0021] Beneficial Effects: This utility model discloses a multi-cavity composite structure sliding door inner panel profile. The uniform profile cross-section design makes the entire sliding door's facade more visually harmonious and aesthetically pleasing. Through the multi-cavity composite structure design connecting the inner and outer profiles with multi-cavity nylon strips, the thermal performance of the sliding door is significantly improved, effectively blocking the heat conduction path of the aluminum alloy profile. This design significantly enhances the sliding door's thermal insulation and airtightness, meeting high K-value parameter requirements, creating a quiet and comfortable living or working environment, and greatly improving the user's quality of life and work efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the assembly at the corner positions of a preferred embodiment of the present invention.

[0024] The components include: 1. Door frame profile; 2. Siliconized weatherstripping; 3. Structural accessory assembly groove; 4. Outer profile; 5. Tempered glass assembly groove; 6. Insulating tempered glass; 7. Structural cavity; 8. Hook and bracket profile; 9. Hook and bracket decorative cover; 10. Structural accessory assembly side guard; 11. Lock handle; 12. Inner profile; 13. Glass pressure line profile; 14. Multi-cavity nylon pressure strip; 15. Tempered glass assembly side guard; 16. Pin groove profile; 17. Lock tongue; 18. Corner bracket. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0026] See Figure 1 , Figure 2A preferred embodiment of a multi-cavity composite sliding door inner sash profile is provided. In this embodiment, the sliding door inner sash profile includes an inner sash frame main profile and structural accessories. The inner sash frame main profile is used to form the door sash frame. The formed door sash frame is embedded in the door frame profile 1. The bottom of the door frame profile is equipped with guide pulleys. The smooth sliding of the door sash during opening and closing is achieved by the cooperation of the guide pulleys and the guide rails embedded in the bottom surface of the door frame profile 1. The door sash frame is embedded with hollow tempered glass 6. The hollow tempered glass 6 is made of double or multiple layers of hollow tempered glass, filled with inert gas, and coated with a Low-E film to effectively reflect infrared radiation and reduce heat penetration.

[0027] In this embodiment, the inner frame main profile of the sliding door inner sash profile includes an independently formed outer profile 4 and an inner profile 12. The outer profile 4 corresponds to the exterior side, while the inner profile 12 corresponds to the interior side. The structural accessories in this embodiment include siliconized weatherstripping 2, glass pressure line profile 13, hook and pin profile 8, and lock.

[0028] In this embodiment, both the outer profile 4 and the inner profile 12 are made of high-strength, corrosion-resistant aluminum alloy, ensuring the overall sturdiness and durability of the sliding door. The outer profile 4 enhances the aesthetics of the door and window and strengthens its resistance to wind and rain erosion, while the inner profile 12 focuses on functional design. Together with the outer profile 4, they form a multi-cavity composite structure, providing the sliding door with excellent heat insulation, thermal insulation, and sound insulation performance.

[0029] The outer profile 4 and the inner profile 12 are used to form the main profile of the inner door frame, corresponding to the four frame edges of the door frame. During assembly, the outer profile 4 and the inner profile 12 are positioned opposite each other, and a structural cavity 7 is formed on each of their opposite sides. The structural cavity 7 is a rectangular cavity designed to install hardware accessories and bear the weight of the door. On the opposite sides of the structural cavity 7, the outer profile 4 and the inner profile 12 are each formed with two sets of nylon pressure strip grooves. These two sets of nylon pressure strip grooves are positioned opposite each other and are respectively located in the middle and on the outside of the structural cavity 7 for installing multi-cavity nylon pressure strips 14.

[0030] Two multi-cavity nylon strips 14 are used to combine the outer profile 4 and the inner profile 12 into the main frame profile of the door leaf through a strip-pressing process. The cross-sections of the door leaf profiles on the top, bottom, left, and right sides are symmetrical and form a whole. During assembly, the outer profile 4 and the inner profile 12 are precisely connected at the nylon strip grooves through the multi-cavity nylon strips 14, constructing a multi-cavity composite structure. The multi-cavity nylon strips 14 block the heat conduction path in the middle, reducing the thermal conductivity of the profiles. This design not only significantly improves the overall strength and stability of the sliding door, but also makes it more visually harmonious and aesthetically pleasing. In addition, this structure can effectively support the weight of large glass areas or door leaves, significantly reducing sagging and warping deformation problems after long-term use.

[0031] The multi-cavity nylon strip 14 is made of high-strength, wear-resistant nylon material. It is designed to be 35.3mm long and at least 5mm wide, with three structural cavities spaced apart along its length. This design not only enhances the strength and stability of the multi-cavity nylon strip but also effectively blocks the heat conduction path between aluminum alloy profiles, improving the thermal performance of the sliding door.

[0032] The structural style of the inner fan frame main profile for frame forming is as follows: Figure 2 As shown, the adjacent frame edges need to be chamfered at the corners, and corner brackets 18 are used to connect the corners within the structural cavity 7 at the chamfered corners. L-shaped aluminum alloy corner brackets are used for mechanical corner-jointing to improve the corner connection strength and prevent loosening and deformation during the handling of the door frame. After the connection is completed, laser welding technology is used to construct the main frame of the door leaf, and the welded surface is finely polished to ensure flatness, finally obtaining the formed door leaf frame.

[0033] The insulated tempered glass 6 is installed after the door frame assembly, using different widths of pressure lines to accommodate glass of various thicknesses. The main profile of the formed inner frame has a pre-reserved tempered glass mounting groove 5 within the corresponding multi-cavity nylon pressure strip 14 on the inner side, specifically for installing the tempered glass. The tempered glass mounting groove 5 has a tempered glass mounting side guard 15 formed on one side of the outer profile 4, while a concave pressure line groove is pre-reserved on the inner profile 12 side as a glass pressure line profile assembly position. When assembling the insulated tempered glass 6, first, the insulated tempered glass 6 is inserted tightly into the tempered glass mounting groove 5 against the tempered glass mounting side guard 15. Then, the glass pressure line profile 13 is installed at the glass pressure line profile assembly position, firmly fixing the insulated tempered glass 6 within the tempered glass mounting groove 5 using the glass pressure line profile 13.

[0034] After the door frame is assembled, on the outer side of the corresponding multi-cavity nylon strip 14 on the inner side of the frame, the main profile of the inner door frame extends a structural accessory assembly side stop 10 on the corresponding side of the outer profile 4 and the inner profile 12. A C-shaped groove is formed on the outer edge of the opposite surface of the structural accessory assembly side stop 10. Structural accessory assembly slots 3 are spaced between the two structural accessory assembly side stops 10. Different assembly structures are reserved at different positions in the structural accessory assembly slots 3 to meet the assembly requirements of different structural accessories. Specifically:

[0035] Inside the structural accessory mounting slot 3 on the vertical frame edge near the door frame profile 1, the structural accessory mounting side panel 10 is fitted with a siliconized weatherstripping 2 via a C-shaped slot. The siliconized weatherstripping 2 effectively enhances the seal between the door leaf and the door frame profile 1 when the door is closed, effectively preventing the intrusion of external dust, moisture, and noise, providing users with a quieter and more comfortable indoor environment. Simultaneously, the siliconized weatherstripping 2 possesses good elasticity and wear resistance, maintaining its sealing performance for a long time and extending the service life of the sliding door.

[0036] The door frame has a pre-reserved hook and bracket assembly slot 3 on the vertical frame edge away from the door frame profile 1, for assembling the hook and bracket profile 8. The hook and bracket profile 8 is designed to limit the movement of the two door frames within the door frame profile 1 during sliding, and cooperates with the door frame profile 1 to further improve the sealing performance of the door and window. A hook and bracket decorative cover 9 is fixedly installed at the end of the sliding door hook and bracket profile by a slot or buckle; when the sliding door is closed, the hook and bracket decorative cover 9 is located at the upper and lower ends of the overlapping and interlocking edge of the door, covering the gap between the hook and bracket profile 8 and the edge, serving a sealing, decorative, and protective function.

[0037] The cantilever structure of the door leaf profile is designed with angle steel plate grooves. The protrusions of the angle steel plates control the surface flatness at the splicing points and maintain the structural stability of the leaf frame to a certain extent before impact. Anti-sway blocks are installed on the inner side of the structural accessory mounting slot 3 on the horizontal frame edge corresponding to the top of the door leaf frame, through oppositely positioned C-shaped slots. The anti-sway blocks on both sides abut against the limiting guide rails of the upper door frame profile, effectively reducing door leaf swaying during the sliding and lateral movement of the door leaf frame, ensuring stable door operation. This not only improves the safety of the doors and windows but also reduces noise caused by swaying, optimizing the user experience.

[0038] The guide pulleys installed in the structural accessory assembly slots 3 on the horizontal frame edges at the bottom of the door frame fit tightly with the guide rails in the door frame, enabling smooth sliding of the door during opening and closing. Additionally, siliconized weatherstripping 15 is installed in the C-shaped slots of the side panels 10 on both sides corresponding to the structural accessory assembly slots 3, further enhancing the sealing effect while also providing dust and insect protection.

[0039] Furthermore, the pre-reserved mounting space for the pin groove profile between the structural cavities 7 on both sides and the multi-cavity nylon pressure strip 14 greatly facilitates the installation of locks. Utilizing this mounting space, pin groove profiles 16 with high-precision lock grooves can be installed, allowing the inner frame main profile to be compatible with various lock systems at the structural cavities 7 of the outer profile 4, and enabling the corresponding lock tongues 17 to be mounted via the pin groove profiles 16. This design not only significantly improves the security of doors and windows but also makes the lock installation process more flexible and convenient.

[0040] In summary, this utility model's multi-cavity composite structure sliding door inner sash profile, through the adoption of a unified profile cross-section design and a multi-cavity composite structure design, significantly improves the sliding door's thermal performance, structural strength, and sound insulation, meeting the growing demands for building energy conservation and user performance. Simultaneously, its aesthetically pleasing design and flexible, convenient structural accessory assembly method provide users with a more comfortable, safe, and convenient indoor environment.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical content of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A multi-cavity composite sliding door inner sash profile, characterized in that, The system includes the main profile of the inner fan frame and structural accessories. Each of the four sides of the main profile of the inner fan frame includes an inner profile and an outer profile. The inner profile and the outer profile are arranged opposite to each other and have structural cavities formed on their opposite sides. Two sets of nylon pressure strip grooves are formed on the opposite sides of the inner profile and the outer profile at the location of the structural cavities. The inner profile and the outer profile are connected by multi-cavity nylon pressure strips at the location of the nylon pressure strip grooves. When the inner fan frame main profile is formed, the adjacent frame edges are chamfered at the corners, and the position is fixed by corner brackets in the structural cavity at the chamfered corners to obtain the formed frame. The main profile of the inner fan frame after molding has a tempered glass assembly groove reserved in the corresponding multi-cavity nylon strip on the inner side of the frame; and a structural accessory assembly groove is reserved on the outer side of the corresponding multi-cavity nylon strip on the inner side of the frame.

2. The multi-cavity composite sliding door inner sash profile according to claim 1, characterized in that, The structural cavity is formed at the midpoint between the inner and outer profiles.

3. The multi-cavity composite sliding door inner sash profile according to claim 1, characterized in that, The structural cavity is a rectangular cavity.

4. The multi-cavity composite sliding door inner sash profile according to claim 1, characterized in that, The multi-cavity nylon strip is 35.3 mm long and at least 5 mm wide, and has three structural cavities spaced apart on its cross-section along its length.

5. The multi-cavity composite sliding door inner sash profile according to claim 1, characterized in that, The inner and outer profiles have pre-reserved matching tempered glass mounting side guards and glass pressure line mounting parts at the corresponding tempered glass mounting slot positions.

6. The multi-cavity composite sliding door inner sash profile according to claim 1, characterized in that, The inner frame main profile is fitted with siliconized weatherstripping inside the structural accessory assembly slot on the vertical frame edge near the door frame side through a C-shaped slot.

7. The multi-cavity composite sliding door inner sash profile according to claim 1, characterized in that, The main profile of the inner fan frame has a pre-reserved hook and pin assembly position on the structural accessory assembly slot on the vertical frame edge away from the door frame.

8. The multi-cavity composite sliding door inner sash profile according to claim 1, characterized in that, The inner fan frame main profile is fitted with anti-sway blocks through the corresponding C-shaped slots on the inner side of the horizontal frame edge at the top of the door frame.

9. The multi-cavity composite sliding door inner sash profile according to claim 1, characterized in that, The inner frame main profile is equipped with guide pulleys in the structural accessory assembly slots of the horizontal frame edge at the bottom of the corresponding door frame.

10. The multi-cavity composite sliding door inner sash profile according to claim 1, characterized in that, There is also a reserved space for the assembly of pin groove profiles between the structural cavities on both sides and the multi-cavity nylon pressure strips; the pin groove profiles are assembled through the pin groove profile assembly space, and the main profile of the inner fan frame can be equipped with locks at the structural cavities of the outer profiles, and the lock tongues of the corresponding locks are assembled through the pin groove profiles.

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