Split type broken bridge aluminum window with separate inner frame without slot

Abstract

The utility model belongs to broken bridge aluminium window technical field, concretely relates to a kind of broken bridge aluminium window using split type slotless inner frame;Including fixed frame, sash window frame and slotless inner frame, fixed frame includes outer window frame and inner window frame, and outer window frame and inner window frame are connected as a whole by heat insulation broken bridge;Slotless inner frame is connected between outer window frame and inner window frame in the window frame inside of fixed frame;Slotless inner frame includes first frame body close to outer window frame and second frame body close to inner window frame, and second frame body is divided into upper frame body and lower frame body, and lower frame body is connected with inner window frame, and upper frame body is connected in lower frame body, and upper frame body is disconnected at hardware installation position, forms the gap for accommodating hardware, and hardware is embedded in corresponding gap;First frame body adopts aluminium alloy material, and the rigidity characteristics of metal material are used to ensure structural stability, and surface texture defects caused by high polymer material cooling shrinkage are overcome simultaneously;Second frame body uses high polymer material to play its heat insulation performance advantage, and form rigid-flexible composite structure.

Description

Technical Field

[0001] This utility model belongs to the technical field of thermally broken aluminum windows, specifically relating to a thermally broken aluminum window with a split, grooveless inner frame. Background Technology

[0002] As a type of window, thermally broken aluminum windows consist of an outer frame and an inner frame, connected by a thermal break to achieve excellent heat insulation, maintain indoor comfort, and provide warmth in winter and coolness in summer. Figure 1 As shown: Due to requirements for sealing, water-stopping, and heat insulation, the inner side of the window frame has multiple grooves. Over time, dirt and dust accumulate in the grooves. The grooves are narrow and closed at both ends, making them inconvenient to clean. In addition, the sealing strip in the middle of the window frame is made entirely of rubber. The flexible rubber sealing strip has no hard shoulder support, resulting in a defective seal.

[0003] The applicant has been dedicated to the research and development and production of windows for many years. On May 31, 2023, they filed a utility model patent entitled "A Frame-Sash Flush Thermal Break Aluminum Window," which was granted on October 20, 2023, with the authorization announcement number CN219864674U. During the production and installation of products based on this patented technology, issues were discovered, such as... Figure 2 As shown, the screws connecting the subframe and the stile need to be covered. The exposed covers on the subframe detract from the overall aesthetics. Furthermore, the hardware is fixed to the top surface of the subframe, protruding upwards, which is unsightly and makes it difficult to clean the subframe.

[0004] In 2024, a structural upgrade was carried out, and on July 29, 2024, a utility model patent entitled "A Hardware-Embedded Frame and Sash Flush Thermal Break Aluminum Window" was filed. The patent was granted on April 4, 2025 (not yet announced). In subsequent mass production, it was found that the yield rate of the sub-frame, which is made entirely of polymer material, was low. Due to the uneven shrinkage of the polymer material during cooling, the surface flatness of the sub-frame was poor and had fine textures. In addition, the mold procurement cost of polymer material was high.

[0005] Therefore, the structure of the subframe was further improved to balance performance, aesthetics, and production costs, and an aluminum-plastic split structure was adopted. Utility Model Content

[0006] This invention aims to solve the problems of low yield and high production cost of subframes made entirely of polymer materials.

[0007] This utility model provides the following technical solution: a thermally broken aluminum window with a split grooveless inner frame, including a fixed frame, a window sash and a window frame and a grooveless inner frame. The fixed frame includes an outer window frame and an inner window frame, which are connected as a whole by thermal break. The grooveless inner frame is connected between the outer window frame and the inner window frame on the inner side of the fixed frame.

[0008] The slotless inner frame includes a first frame near the outer window frame and a second frame near the inner window frame. The second frame is divided into an upper frame and a lower frame. The lower frame is connected to the inner window frame, and the upper frame is connected to the lower frame. The upper frame is disconnected at the hardware installation position to form a notch for accommodating the hardware, and the hardware is embedded in the corresponding notch.

[0009] Furthermore, the lower frame is connected to the inner window frame via screws and a snap-fit ​​structure.

[0010] Furthermore, the second frame also includes a buckle, which is connected to the lower frame and fixed to it with screws; the upper frame is engaged with the buckle.

[0011] Furthermore, the first frame and the lower frame are connected by a bayonet structure.

[0012] Furthermore, the first frame is glued and fixed to the outer window frame.

[0013] Furthermore, a first-stage support surface facing the window sash and window frame is constructed on the first frame, and a second-stage support surface facing the window sash and window frame is constructed on the second frame, with the surfaces of the first frame and the second frame being flush between the first-stage support surface and the second-stage support surface.

[0014] Furthermore, the buckle is provided with raised ribs, and the lower frame is provided with concave ribs that fit with the raised ribs.

[0015] Furthermore, the first frame is an aluminum alloy frame, while the upper and lower frames are made of polymer materials.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] This utility model provides a thermally broken aluminum window with a split, groove-free inner frame. The first frame is made of aluminum alloy, which is easy to form and utilizes the rigidity of metal materials to ensure structural stability, while overcoming surface texture defects caused by the cooling and shrinkage of polymer materials. The second frame is made of polymer materials to leverage their thermal insulation advantages, forming a rigid-flexible composite structure. The split structure allows each component to be formed independently, significantly reducing material shrinkage stress during overall forming. The embedded installation design of the hardware achieves a completely hidden layout, eliminating the visual discontinuity caused by exposed structures. The flush design of the double-layer support surface, combined with the staggered connection structure, forms multiple sealing defenses while maintaining the flush appearance of the frame and sash. The middle sealing strip is supported on both sides by nylon or other rigid polymer materials. The parts on both sides of the sealing strip are called hard shoulders. The two hard shoulders compress the flexible sealing strip, improving airtightness. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of thermally broken aluminum windows in the prior art;

[0019] Figure 2 This is a schematic diagram of a thermally broken aluminum window with a split, groove-free inner frame.

[0020] Figure 3 This is a schematic diagram showing the installation location of the lock block;

[0021] Figure 4 This is an exploded view of the slotless inner frame;

[0022] Figure 5 This is a schematic diagram of the lock block.

[0023] In the diagram: 1-Fixed frame; 1.1-Outer window frame; 1.2-Inner window frame; 1.3-Thermal break; 2-Window sash and frame; 3-Grooveless inner frame; 3.1-First frame; 3.2-Upper frame; 3.3-Lower frame; 3.3.1-Concave rib; 3.4-Snap-on; 3.4.1-Protruding rib; 3.5-First-stage support surface; 3.6-Second-stage support surface; 4-Screw; 5-Original sealing strip; 6-Glass; 7-Improved sealing strip; 8-Lock block. Detailed Implementation

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] like Figure 2 , Figure 3 , Figure 4 As shown: A thermally broken aluminum window with a split grooveless inner frame includes a fixed frame 1, a window sash and frame 2, and a grooveless inner frame 3. The fixed frame 1 includes an outer window frame 1.1 and an inner window frame 1.2, which are connected as a whole by a thermally broken bridge 1.3. The grooveless inner frame 3 is connected between the outer window frame 1.1 and the inner window frame 1.2 on the inner side of the fixed frame 1.

[0026] The grooveless inner frame 3 includes a first frame 3.1 near the outer window frame 1.1 and a second frame near the inner window frame 1.2. The second frame is divided into an upper frame 3.2 and a lower frame 3.3. The lower frame 3.3 is connected to the inner window frame 1.2, and the upper frame 3.2 is connected to the lower frame 3.3. The upper frame 3.2 is broken at the hardware installation position to form a notch for accommodating the hardware, which is then embedded into the corresponding notch. By splitting the second frame into upper and lower parts, the screws used for fixing can be hidden inside the upper frame 3.2, resulting in a neat appearance after the grooveless inner frame 3 is installed. The upper frame 3.2 can be cut separately, and a gap is reserved as a hardware installation port when installing the upper frame 3.2, making hardware installation convenient. The hardware adopts an embedded installation structure, and there are no irregular structural protrusions inside the window frame, resulting in a beautiful and flat appearance.

[0027] When installing the window frame, after the fixed frame 1 is securely installed, install the first frame 3.1 and the lower frame 3.3. After the first frame 3.1 and the lower frame 3.3 are installed, install the upper frame 3.2 of the corresponding length at the corresponding position of the lower frame 3.3. When installing the hardware, there is no need to cut it; simply embed the hardware into the gap between the upper frame 3.2. After the window frame is installed, the structure is neat and the installation error is small.

[0028] The first frame 3.1 has a first-stage support surface 3.5 facing the window sash and frame 2, and the second frame has a second-stage support surface 3.6 facing the window sash and frame 2. The surfaces of the first frame 3.1 and the second frame are flush between the first-stage support surface 3.5 and the second-stage support surface 3.6; that is, the surface of the upper frame 3.2 is flush with the surface of the first frame 3.1, resulting in a clean visual effect when the window sash is open and making it easy to clean. An improved sealing strip 7 is installed on the window sash and frame 2. One side of the improved sealing strip 7 is supported by the window sash and frame 2, and the other side is supported by the first-stage support surface 3.5 of the grooveless inner frame 3. When the window sash is closed, the first-stage support surface 3.5 and the window sash and frame 2 compress the improved sealing strip 7, increasing airtightness. The second-stage support surface 3.6 cooperates with the second sealing strip on the window sash and frame 2 to form a second sealing line.

[0029] The first frame 3.1 is an aluminum alloy frame. Aluminum alloy profiles are easy to form, and the surface is flat without messy textures. The upper frame 3.2 and the lower frame 3.3 are polymer material frames. Reducing the area of ​​polymer material profiles reduces their deformation, improves yield, and lowers production costs. It leverages the thermal insulation properties of polymer materials and combines them with aluminum alloy profiles to form a rigid-flexible composite structure. It achieves a balance in terms of strength, production cost, thermal insulation performance, and aesthetics.

[0030] The lower frame 3.3 is connected to the inner window frame 1.2 by screws 4 and a bayonet structure.

[0031] The second frame also includes a buckle 3.4, which is connected to and fixed to the lower frame 3.3 by a screw 4; the upper frame 3.2 is fastened to the buckle 3.4, and the screw 4 is completely hidden in the upper frame 3.2, and the fixing structure of the upper frame 3.2 is not visible from the outside.

[0032] The first frame 3.1 and the lower frame 3.3 are connected by a snap-fit ​​structure. The lower frame 3.3 fixes the first frame 3.1 in place, and the fixing structure of the first frame 3.1 is not visible from the outside. The first frame 3.1 is further fixed to the outer window frame 1.1 with adhesive.

[0033] The buckle 3.4 is provided with a raised rib 3.4.1, and the lower frame 3.3 is provided with a concave rib 3.3.1 that matches the raised rib 3.4.1; the raised rib 3.4.1 and the concave rib 3.3.1 work together for positioning to prevent the buckle 3.4 from deviating from its installation position.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A thermally broken aluminum window with a split grooveless inner frame, comprising a fixed frame (1), a window sash and frame (2), and a grooveless inner frame (3). The fixed frame (1) comprises an outer window frame (1.1) and an inner window frame (1.2), which are connected as a whole by thermal break (1.3). The grooveless inner frame (3) is connected between the outer window frame (1.1) and the inner window frame (1.2) on the inner side of the window frame of the fixed frame (1). Its features are: The grooveless inner frame (3) includes a first frame (3.1) near the outer window frame (1.1) and a second frame near the inner window frame (1.2). The second frame is divided into an upper frame (3.2) and a lower frame (3.3). The lower frame (3.3) is connected to the inner window frame (1.2), and the upper frame (3.2) is connected to the lower frame (3.3). The upper frame (3.2) is disconnected at the hardware installation position to form a notch for accommodating the hardware, and the hardware is embedded in the corresponding notch.

2. A thermally broken aluminum window with a split, slotless inner frame as described in claim 1, characterized in that: The lower frame (3.3) is connected to the inner window frame (1.2) by screws (4) and a bayonet structure.

3. A thermally broken aluminum window with a split, grooveless inner frame as described in claim 2, characterized in that: The second frame also includes a buckle (3.4), which is connected to a screw (4) and fixed on the lower frame (3.3); the upper frame (3.2) is fastened to the buckle (3.4).

4. A thermally broken aluminum window with a split, slotless inner frame as described in claim 2, characterized in that: The first frame (3.1) and the lower frame (3.3) are connected by a bayonet structure.

5. A thermally broken aluminum window with a split, grooveless inner frame as described in claim 4, characterized in that: The first frame (3.1) is glued to the outer window frame (1.1).

6. A thermally broken aluminum window with a split, grooveless inner frame as described in claim 1, characterized in that: The first frame (3.1) has a first-level support surface (3.5) facing the window sash frame (2), and the second frame has a second-level support surface (3.6) facing the window sash frame (2). The surfaces of the first frame (3.1) and the second frame are flush between the first-level support surface (3.5) and the second-level support surface (3.6).

7. A thermally broken aluminum window with a split, grooveless inner frame as described in claim 3, characterized in that: The buckle (3.4) is provided with a raised rib (3.4.1), and the lower frame (3.3) is provided with a concave rib (3.3.1) that matches the raised rib (3.4.1).

8. A thermally broken aluminum window with a split, grooveless inner frame as described in any one of claims 1 to 7, characterized in that: The first frame (3.1) is an aluminum alloy frame, and the upper frame (3.2) and lower frame (3.3) are polymer material frames.

Images