A profile structure for improving sealing performance and a side-hinged window system

Abstract

The utility model provides a kind of profile structure and side pressure window system of improving sealing, the profile structure of improving sealing includes: main border, vice frame and sealing rubber strip;Main border is used to connect building matrix and install window sash;Vice frame is connected in the outdoor side of main border;Vice frame includes four first and last connected assembly profiles, and the first end and tail end of assembly profile are equipped with the inclined surface that is attached with adjacent assembly profile;Assembly profile is equipped with groove, and the groove on four assembly profiles is interconnected to form sealing loop;Sealing rubber strip is continuously arranged and is clamped in sealing loop.The utility model is connected by setting first and last and inclined assembly profile, realize the intercommunication between groove, and then form continuous sealing loop, so that sealing rubber strip does not need to cut and splice, can be continuously set, substantially improve the air tightness and water tightness of side pressure window system, meet the high standard sealing demand.

Description

Technical Field

[0001] This utility model relates to the field of door and window technology, and more specifically to a profile structure and side-pressure window system for improving sealing performance. Background Technology

[0002] Side-pressure windows are a type of window that achieves a tight seal between the sash and frame by generating lateral pressure when the sliding sash is driven outwards. Due to their excellent sealing performance, they are widely used in building applications with high requirements for airtightness and watertightness. Specifically, by operating the handle to trigger the transmission mechanism, the sliding sash is driven to move outwards, causing the sash to press tightly against the sealing strip on the exterior frame, thus blocking the flow of air and rainwater between the interior and exterior. In current mainstream sealing structures, the outdoor sealing part of the sliding fan adopts a snap-on assembly structure, as shown in the reference. Figure 1 As shown, a cover 2' is installed on the outdoor end of the main frame 1 of the side-pressure window profile. The inner wall of the cover 2' has a groove for a rubber strip extending along its length. A sealing strip 3 is embedded in the groove through an interference fit, forming a sealing interface between the sliding sash 8' and the cover 2'. Because the cover 2' needs to be assembled at a 90° angle along the corner of the main frame 1 (i.e., the horizontal cover 2' and the vertical cover 2' are joined at the corner of the main frame 1), the sealing strip 3 installed in the groove of the cover 2' must be cut at the corner of the cover 2' before being joined. Therefore, in this profile structure, a physical seam is formed at the corner joint of the sealing strip. This seam directly disrupts the continuity of the sealing strip, allowing rainwater and airflow from the outdoor environment to easily seep into the room through the seam, severely reducing the overall sealing performance of the window and making it difficult to meet the sealing requirements of high-standard buildings. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the prior art and provide a profile structure and side-pressure window system that improves sealing performance, so as to solve the technical problem that the existing sealing strip is installed with a 90° splice, which causes the sealing strip to be cut and spliced, resulting in poor sealing performance.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, this utility model provides a profile structure for improving sealing performance, comprising: The main frame is used to connect the building base and install window sashes; A sub-frame is connected to the outdoor side of the main frame; the sub-frame includes four assembled profiles connected end to end, and the first and last ends of the assembled profiles are provided with inclined surfaces that fit with adjacent assembled profiles; the assembled profiles are provided with grooves, and the grooves on the four assembled profiles are interconnected to form a sealed loop. The sealing strips are continuously arranged and snapped into the sealing circuit.

[0005] In one embodiment, the slope of the inclined surfaces is 45°, and the two inclined surfaces on the same assembly profile have opposite inclination directions.

[0006] In one embodiment, the profile structure for improving sealing further includes at least four corner brackets; the corner brackets are disposed between two adjacent assembly profiles, and the two ends of the corner brackets are respectively fixedly connected to the two adjacent assembly profiles.

[0007] In one embodiment, the profile structure for improving sealing further includes at least four connecting screws; the connecting screws are screwed to two adjacent assembly profiles.

[0008] In one embodiment, the profile structure for improving sealing further includes at least four sets of angle steel plates; the sets of angle steel plates are disposed between two adjacent assembled profiles, and the two ends of the sets of angle steel plates are respectively fixedly connected to the two adjacent assembled profiles.

[0009] In one embodiment, the subframe is detachably connected to the main frame.

[0010] In one embodiment, the profile structure for improving sealing further includes a fastener, which is screwed to the sub-frame and the main frame.

[0011] In one embodiment, the mounting profile has a mounting groove on the side away from the main frame, and the fastener passes through the mounting groove and extends from the mounting groove toward the main frame.

[0012] In one embodiment, the mounting profile has a mounting portion on the side away from the main frame, the mounting portion being used to connect a screen window.

[0013] Secondly, this utility model provides a side-pressure window system, which includes: a window sash and the aforementioned profile structure for improving sealing performance; the window sash is movably connected to the main frame and located on the indoor side of the sub-frame.

[0014] The advantages of this utility model compared with the prior art are as follows: By setting up an assembly profile that is connected end to end and inclined to fit together, this utility model realizes the interconnection between the grooves, thereby forming a continuous sealing circuit. This allows the sealing strip to be installed without cutting or splicing, which greatly improves the air tightness and water tightness of the side pressure window system and meets high-standard sealing requirements.

[0015] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this utility model more obvious and understandable, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the existing side-pressure window system; Figure 2 This is a schematic diagram of the structure of a side-pressure window system provided by this utility model; Figure 3 An exploded view of a side-pressure window system provided by this utility model; Figure 4 A structural diagram of a profile structure for improving sealing performance provided by this utility model; Figure 5 This is a schematic diagram of the corner bracket of Embodiment 2 of this utility model; Figure 6 This is a schematic diagram of the profile structure for improving sealing performance according to Embodiment 3 of this utility model; Figure 7 This is a schematic diagram of the profile structure for improving sealing performance in Embodiment 4 of this utility model; Figure 8 This is a schematic diagram of the angle steel sheet structure in Embodiment 4 of this utility model; Figure 9 This is a schematic diagram of the profile structure for improving sealing performance according to Embodiment Six of this utility model; Figure 10 This is a schematic diagram of the profile structure for improving sealing performance in Embodiment 7 of this utility model.

[0017] Figure label: 1. Main frame; 11. Baffle; 111. Slot; 2. Sub-frame; 21. Assembly profile; 211. Groove; 212. Connecting part; 213. Mounting groove; 2131. Decorative cover; 214a. Connecting hole; 214b. Connecting groove; 215. Mounting part; 2151. Adhesive groove; 216. Embedded groove; 217a. First adhesive strip; 217b. Second adhesive strip; 218. Screen frame; 219. Fixing seat; 3. Sealing strip; 4. Fastener; 5. Corner bracket; 6. Angle steel plate assembly; 7. Screen mesh; 8. Window sash; 9. Guide rail; 2'. Cover; 8'. Sliding sash. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] It should be understood that, when used in this specification and the appended claims, the terms “comprising” and “including” indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0020] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0021] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0022] Example 1 See Figures 2 to 4 As shown, this embodiment discloses a profile structure for improving sealing performance, applied to a side-pressure window system, which includes: a main frame 1, a sub-frame 2, and a sealing strip 3; the main frame 1 is used to connect the building base and install the window sash 8; the sub-frame 2 is connected to the outdoor side of the main frame 1; the sub-frame 2 includes four assembled profiles 21 connected end to end, and the first and last ends of the assembled profiles 21 are provided with inclined surfaces that fit with adjacent assembled profiles 21; the assembled profiles 21 are provided with grooves 211, and the grooves 211 on the four assembled profiles 21 are interconnected to form a sealing loop; the sealing strip 3 is continuously arranged and snapped into the sealing loop.

[0023] In practice, the four prefabricated profiles 21 are first fixedly connected in sequence to form an independent rectangular sub-frame 2; then, the main frame 1 is fixed to the pre-reserved openings in the building base such as the building wall and curtain wall keel using expansion bolts and other connectors; then, the assembled sub-frame 2 is securely installed on the main frame 1; next, the sealing strip 3 is embedded into the groove 211; finally, the window sash 8 is assembled from the side of the sub-frame 2 closest to the interior onto the main frame 1, thus completing the assembly.

[0024] Understandably, the inclined surface design ensures the tightness of the joint between adjacent assembly profiles 21, preventing gaps at the splice. The formation of the sealing loop provides continuous installation space for the sealing strip 3, solving the problem of needing to cut the sealing strip 3 to create gaps in the existing 90° snap-on splicing method. This structurally eliminates sealing breaks. Simultaneously, the sub-frame 2 not only provides support for the pressing of the window sash 8 but also prioritizes blocking outdoor rainwater and airflow, reducing the amount of rainwater and airflow entering between the sub-frame 2 and the window sash 8, further improving the sealing performance of the side-pressure window system. Therefore, the profile structure in this embodiment, by setting up end-to-end, inclined, and fitted assembly profiles 21, achieves interconnection between the grooves 211, thus forming a continuous sealing loop. This allows the sealing strip 3 to be installed without cutting or splicing, significantly improving the airtightness and watertightness of the side-pressure window system and meeting high-standard sealing requirements.

[0025] Specifically, the sub-frame 2 is a rectangular profile structure formed by four assembled profiles 21 connected to the main frame 1. It can be understood that the main frame 1 is also a rectangular profile structure, and the sub-frame 2 is fitted to the inner wall of the main frame 1. Figures 2 to 4 The assembly profile 21 shown is the side view structure of the assembly profile 21 at the bottom of the sub-frame 2. The main frame 1 is the side view structure of the bottom profile of the main frame 1, and is parallel to the bottom assembly profile 21 of the sub-frame 2. The rectangular structure is compatible with the shape of most pre-reserved openings in buildings, ensuring the versatility of the entire window.

[0026] In a further embodiment, the slope of the inclined surfaces is 45°, and the two inclined surfaces on the same assembly profile 21 have opposite inclination directions. In specific implementation, taking the axis of the assembly profile 21 as a reference, a 45° inclined surface is machined at the first end of the profile to one side, and a 45° reverse inclined surface is machined at the tail end to the other side. This ensures that when adjacent assembly profiles 21 are mated, the inclined surface at the first end of one profile can completely fit with the inclined surface at the tail end of the other profile. This avoids the groove 211 being blocked due to the outer wall of adjacent assembly profiles 21. The interconnected groove 211 significantly improves the sealing performance of the system. It is understandable that the 45° beveled surface design for the sub-frame 2 conforms to conventional profile processing technology, facilitates mass production in the factory, and reduces processing costs. Furthermore, the 45° splicing process enhances the connection strength of adjacent assembly profiles 21, enabling two adjacent assembly profiles 21 to form a stable, perpendicular connection structure. Ultimately, the four assembly profiles 21 are spliced ​​together to form the rectangular sub-frame 2. Compared to a direct 90° splicing, this reduces stress concentration at the splicing point, preventing loosening of the sub-frame 2 under stress during long-term use, and improving the system's stability and durability. It is also understandable that in other embodiments, the tilt angle of the inclined surface can be adjusted according to actual needs. For example, a 60° tilt angle at the first end and a 30° tilt angle at the last end can be used, as long as the tilt angles of adjacent assembly profiles 21 are fully fitted.

[0027] In a preferred embodiment, a cross-sectional adhesive is applied to the joint between adjacent assembly profiles 21. The cross-sectional adhesive fills the gap at the joint between adjacent assembly profiles 21, blocks the path of rainwater and airflow penetration, and enhances the sealing performance.

[0028] In a further embodiment, the sub-frame 2 is detachably connected to the main frame 1. This detachable connection of the sub-frame 2 solves the problem of difficulty in replacing the sub-frame 2 after damage in traditional fixed connections, reducing the difficulty and cost of later maintenance; at the same time, the detachable connection also facilitates adjustment of the sub-frame 2's position during installation, ensuring installation accuracy.

[0029] In a further embodiment, the main frame 1 is provided with a baffle 11, which is located on the outdoor side of the main frame 1. The side of the baffle 11 facing the indoor side is provided with a slot 111. The outdoor side of the decorative profile is provided with a snap-fit ​​part 212 corresponding to the slot 111, which snaps into the slot 111. During assembly, the sub-frame 2 is pushed toward the main frame 1 so that the snap-fit ​​part 212 of the sub-frame 2 is aligned with the slot 111 of the baffle 11. The pushing continues until the snap-fit ​​part 212 is fully engaged in the slot 111, thus achieving pre-fixation of the two. Then, the fasteners 4 are used for reinforcement. The baffle 11 can prevent outdoor rainwater from directly impacting the connection between the sub-frame 2 and the main frame 1, thus playing a preliminary waterproofing role; the cooperation between the slot 111 and the snap-fit ​​part 212 enables the sub-frame 2 and the main frame 1 to be quickly pre-positioned, reducing the adjustment time during assembly and improving assembly efficiency. At the same time, the snap-fit ​​structure can increase the connection area between the sub-frame 2 and the main frame 1, improve the connection stability, and prevent the sub-frame 2 from loosening under the action of outdoor wind.

[0030] In a further embodiment, the profile structure for improving sealing also includes a fastener 4, which is screwed to the sub-frame 2 and the main frame 1. Preferably, the fastener 4 is a screw. The fastener 4 securely connects the sub-frame 2 and the main frame 1 through a threaded connection, preventing separation due to temperature changes, wind, or other factors during long-term use. The threaded connection provides high connection strength and is easy to disassemble, balancing structural stability and ease of maintenance. Furthermore, the even distribution of the screws prevents excessive local stress on the sub-frame 2, thus ensuring the integrity of the sealing circuit.

[0031] In a preferred embodiment, the mounting profile 21 has a mounting groove 213 on the side away from the main frame 1. The fastener 4 passes through the mounting groove 213 and extends from the mounting groove 213 toward the main frame 1. A decorative cover 2131 is provided at the top opening of the mounting groove 213. It is understood that the side of the mounting profile 21 away from the main frame 1 is the inner side facing the center of the opening. The mounting groove 213 can hide the fastener 4, preventing the screw from being directly exposed to the outside, reducing the corrosion of the screw by rainwater and dust, and extending the screw's service life. In addition, the decorative cover 2131 can also prevent rainwater and dust from entering the mounting groove 213, preventing the accumulation of debris in the mounting groove 213 from affecting the later disassembly of the screw, and the decorative cover 2131 facilitates disassembly for convenient maintenance of the screw later.

[0032] In another preferred embodiment, fastener 4 is screwed onto the exterior sides of the sub-frame 2 and the main frame 1. Threaded holes are machined at corresponding positions on the exterior surfaces of the sub-frame 2 and the main frame 1, with the axis of the threaded holes perpendicular to the exterior surfaces. During assembly, fastener 4 is aligned with the threaded holes from the exterior side and screwed into the threaded holes of the main frame 1 and the sub-frame 2 until the screw caps are tightly fitted against the exterior surface of the main frame 1, thus achieving a fixed connection between the two. This screwing method of fastener 4 makes the machining of the sub-frame 2 more convenient and efficient, and eliminates the need for the decorative cover 2131, improving the aesthetics of the sub-frame 2.

[0033] Example 2 See Figure 2 and Figure 5 As shown, this embodiment discloses a profile structure that improves sealing performance. Based on the profile structure for improving sealing performance in Embodiment 1, a specific connection structure between the assembled profiles 21 is provided.

[0034] Specifically, the profile structure for improving sealing in this embodiment includes at least four corner brackets 5. The corner brackets 5 are located between two adjacent assembly profiles 21, and both ends of the corner brackets 5 are fixedly connected to the two adjacent assembly profiles 21. More specifically, the corner brackets 5 have an "L" shaped structure. Before assembling the sub-frame 2, screw holes are pre-machined on the right-angled sides of the corner brackets 5, and corresponding screw holes are also made on the assembly profiles 21. During sub-frame 2 assembly, the inclined surfaces of two adjacent assembly profiles 21 are first fitted together to form a joint, and then the corner brackets 5 are inserted into the cavities of the two assembly profiles 21, so that the two right-angled sides of the corner brackets 5 are fitted to the inner walls of the two assembly profiles 21 respectively. The corner brackets 5 are fixed to the assembly profiles 21 by screws passing through the screw holes of the corner brackets 5. At least one corner bracket 5 is provided at each joint, and at least four corner brackets 5 are required at the four joints to ensure that all four corners of the sub-frame 2 are reinforced. Using corner brackets 5 to rigidly connect adjacent assembly profiles 21 significantly improves the overall structural strength of the sub-frame 2, preventing corner deformation of the sub-frame 2 during transportation, installation or use, and thus avoiding gaps in the sealing circuit due to deformation.

[0035] Example 3 See Figure 6 As shown, this embodiment discloses a profile structure that improves sealing performance. Based on the profile structure for improving sealing performance in Embodiment 1, a specific connection structure between the assembled profiles 21 is provided.

[0036] Specifically, the profile structure for improving sealing in this embodiment includes at least four connecting screws; the connecting screws are screwed to two adjacent assembly profiles 21. Before assembling the sub-frame 2, the inclined surfaces of the two adjacent assembly profiles 21 are fully fitted together, and the position of the connecting hole 214a is marked at the fitting point. The connecting hole 214a is a threaded hole. Ensure that the connecting holes 214a on the two adjacent inclined surfaces are aligned, and process the connecting holes 214a with a drilling device. When assembling the sub-frame 2, screw the connecting screw into the connecting hole 214a on one inclined surface and out through the connecting hole 214a on the other inclined surface, and tighten it with a nut, or directly use a self-tapping screw for tapping and fixing. At least one connecting screw is installed at each splice, and at least four connecting screws are required at the four splices to achieve splicing and fixing of the sub-frame 2. The connecting screws can directly lock two adjacent assembly profiles 21, resulting in high splicing strength. The screw connection method can ensure the tightness of the splice and reduce the generation of gaps. Compared with the corner bracket 5, the installation of the connecting screws does not require the reservation of corner bracket 5 installation space, which is suitable for assembly profiles 21 with smaller cross-sections, expanding the applicable range of profile structures. At the same time, the tools for installing and removing the screws are conventional and easy to operate.

[0037] Example 4 See Figure 7 and Figure 8 As shown, this embodiment discloses a profile structure that improves sealing performance. Based on the profile structure for improving sealing performance in Embodiment 1, a specific connection structure between the assembled profiles 21 is provided.

[0038] Specifically, the profile structure for improving sealing in this embodiment further includes at least four angle steel plates 6. The angle steel plates 6 are disposed between two adjacent assembly profiles 21, and both ends of the angle steel plates 6 are fixedly connected to the two adjacent assembly profiles 21. More specifically, the angle steel plates 6 have an "L" shaped structure; the assembly profiles 21 are provided with connecting grooves 214b, and the two right-angled sides of the angle steel plates 6 pass through the connecting grooves 214b of the two adjacent assembly profiles 21, and are fixed to the assembly profiles 21 using matching screws. One angle steel plate 6 is provided at each splice, and at least four are required at the four splices to ensure a stable connection at the corners of the sub-frame 2. The "L"-shaped structure of the angle steel plate 6 can be adapted to the connecting groove 214b of the sub-frame 2. Compared with a single screw or corner bracket 5, it can better resist external impact and prevent the corner of the sub-frame 2 from deforming. At the same time, the angle steel plate 6 can enhance the overall rigidity of the assembly profile 21, reduce the bending deformation of the profile during long-term use, and ensure that the sealing strip 3 is always tightly fitted with the groove 211 to maintain the sealing effect.

[0039] Example 5 See Figure 2 and Figure 9As shown, this embodiment discloses a profile structure for improving sealing performance, based on the profile structure for improving sealing performance in Embodiment 1, Embodiment 2, Embodiment 3, or Embodiment 4. In this embodiment, the mounting profile 21 has a mounting portion 215 on the side away from the main frame 1, and the mounting portion 215 is used to connect the screen window.

[0040] The profile structure with improved sealing performance in this embodiment can inherit the excellent sealing performance of the profile structure with improved sealing performance in Embodiment 1, Embodiment 2, Embodiment 3 or Embodiment 4. The added mounting part 215 provides a mounting carrier for the screen, which expands the profile structure from a single sealing function to a multi-functional structure of sealing and protection. There is no need to set up a screen installation position on the main frame 1 or the building base, which simplifies the overall window structure and reduces the installation complexity. At the same time, it is convenient to install the screen on the side of the window sash 8 that is closer to the outside, which can preferentially block mosquitoes and dust from entering the room and improve the user experience.

[0041] Example 6 See Figure 2 and Figure 9 As shown, this embodiment discloses a profile structure for improving sealing performance. Based on the profile structure for improving sealing performance in Embodiment 5, a specific screen window installation structure is provided.

[0042] In this embodiment, the mounting part 215 protrudes from the side of the sub-frame 2 away from the main frame 1. A glue groove 2151 is provided on the side of the mounting part 215 closest to the interior, and a first adhesive strip 217a is embedded in the glue groove 2151. When the window sash 8 is installed on the side of the sub-frame 2 closest to the interior, a groove 216 is formed between the mounting part 215 and the window sash 8, which is used to accommodate the screen. The protruding structure of the mounting part 215 restricts the position of the screen, preventing it from falling off from the exterior side and enhancing the connection stability of the screen. After the first adhesive strip 217a is embedded in the glue groove 2151, it fills the gap between the mounting part 215 and the screen, preventing insects and dust from entering the room through the gap. Simultaneously, the first adhesive strip 217a provides noise reduction and sealing when the screen is opened and closed, extending the screen's service life. The design of the groove 216 provides directional opening and closing space for the screen, ensuring smooth opening and closing and preventing deviation.

[0043] In a further embodiment, the profile structure for improving sealing performance in this embodiment further includes: a screen frame 218; a second adhesive strip 217b is provided on the indoor side of the screen frame 218, and the screen frame 218 is connected to the groove 216 through screen hardware; the screen frame 218 is used to install the inward-opening screen mesh 7. During screen assembly, first ensure that the window sash 8 is installed on the main frame 1, then insert the screen frame 218 into the groove 216 between the window sash 8 and the mounting part 215, and make the first adhesive strip 217a embedded in the indoor side adhesive groove 2151 of the screen frame 218, and the second adhesive strip 217b adheres to the outdoor side of the window sash 8. Adjust the horizontal and verticality of the screen frame 218 to ensure that the inward-opening screen mesh 7 can be opened and closed normally after installation. Finally, install the inward-opening screen mesh 7 on the screen frame 218 and fix the screen mesh 7 to the screen frame 218 with screws or clips. The inward-opening design of the screen window makes it convenient for users to clean the screen mesh 7 from inside without having to go outside, thus improving safety and convenience; the second adhesive strip 217b can fill the gap between the screen window frame 218 and the window sash 8, further enhancing the sealing effect and preventing rainwater and airflow from seeping in through the gaps in the screen window frame 218.

[0044] Example 7 See Figure 2 and Figure 10 As shown, this embodiment discloses a profile structure for improving sealing performance. Based on the profile structure for improving sealing performance in Embodiment 5, a specific screen window installation structure is provided.

[0045] In this embodiment, the mounting part 215 is a groove-shaped structure; the profile structure for improving sealing in this embodiment also includes a fixing seat 219; the fixing seat 219 is connected inside the mounting part 215 and is used to install the accordion gauze. The mounting part 215 is processed into a groove-shaped structure extending along the perimeter of the sub-frame 2 during the production of the sub-frame 2, with the groove opening facing the center of the opening. The fixing seat 219 is inserted into the mounting part 215 from the groove opening of the mounting part 215, the position of the fixing seat 219 is adjusted, and the fixing seat 219 is fixed in the mounting part 215 by screws passing through the mounting holes. After the fixing seat 219 is installed, the fixed end of the accordion gauze is connected to the fixing seat 219, and the accordion gauze can be opened and closed by pulling the other end.

[0046] Preferably, the mounting part 215 is a mounting groove 213. In specific implementation, the mounting groove 213, i.e., the mounting part 215, is first machined on the sub-frame 2. The inner wall of the mounting groove 213 is reserved with threaded holes corresponding to the main frame 1. The fastener 4 is inserted through the threaded holes in the inner wall of the mounting groove 213 and screwed to fix the sub-frame 2 and the main frame 1, ensuring that the screw head does not protrude from the inner wall of the mounting groove 213. Then, the fixing seat 219 is placed into the mounting groove 213, so that the fixing seat 219 fits against the inner wall of the mounting groove 213. Finally, the fixing seat 219 is fixed to the inner wall of the mounting groove 213 with screws. The mounting groove 213 provides installation space for both the fixing seat 219 and the fastener 4, reducing the processing difficulty of the assembly profile 21, improving the overall processing and assembly efficiency, and increasing the space utilization rate of the assembly profile 21, making the overall profile structure more compact and suitable for installation scenarios with limited space.

[0047] Example 8 See Figures 1 to 10 As shown, this embodiment discloses a side-pressure window system, which includes: a window sash 8, and a profile structure for improving sealing performance as described in Embodiments 1, 2, 3, 4, 5, 6, or 7; the window sash 8 is movably connected to the main frame 1 and located on the indoor side of the sub-frame 2. Specifically, the side-pressure window system of this embodiment also includes: a guide rail 9; the guide rail 9 is connected to the main frame 1 and located on the indoor side of the sub-frame 2; the window sash 8 is slidably connected to the guide rail 9.

[0048] For specific implementation, please refer to Figure 4 As shown, first move the assembled independent sub-frame 2 towards the outside, so that the snap-fit ​​part 212 snaps into the snap-fit ​​groove 111. Then, use fasteners 4 to screw the assembly profile 21 to the main frame 1, and then snap the sealing strip 3 into the groove 211; see Figure 2 As shown, the guide rail 9 is then installed inside the main frame 1. Next, the window sash 8 is lifted and placed inside the main frame 1 from the indoor side, and then fitted onto the guide rail 9. Finally, the position of the window sash 8 is adjusted until it is in normal working condition. Then, the window sash 8 is driven to move to the outdoor side through the handle mechanism and transmission components to apply lateral pressure to the sub-frame 2, so that the sealing strip 3 will be evenly pressed onto the outdoor side wall of the window sash 8 to form a perfect closed-loop seal.

[0049] In this embodiment, the window sash 8, in conjunction with the profile structure that enhances sealing, forms a three-layer structure consisting of a baffle 11, a sub-frame 2, and a window sash 8, distributed sequentially from the outside to the inside. The sealing strip 3 of the sub-frame 2 is located on the outside side of the window sash 8, which can preferentially block rainwater and airflow, significantly improving the sealing performance of the system. The window sash 8 is located on the inside side of the sub-frame 2, making it convenient for users to operate the window sash 8 from inside, allowing the window sash 8 to move closer to or away from the sub-frame 2 to achieve sealing or separation. At the same time, the indoor position of the window sash 8 can reduce the erosion of the window sash 8 by the outdoor environment and extend the service life of the window sash 8.

[0050] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A profile structure for improving sealing performance, characterized in that, include: The main frame is used to connect the building base and install window sashes; A sub-frame is connected to the outdoor side of the main frame; the sub-frame includes four assembled profiles connected end to end, and the first and last ends of the assembled profiles are provided with inclined surfaces that fit with adjacent assembled profiles; the assembled profiles are provided with grooves, and the grooves on the four assembled profiles are interconnected to form a sealed loop. The sealing strips are continuously arranged and snapped into the sealing circuit.

2. The profile structure for improving sealing performance according to claim 1, characterized in that, The slope of each inclined surface is 45°, and the two inclined surfaces on the same assembly profile have opposite inclination directions.

3. The profile structure for improving sealing performance according to claim 1, characterized in that, Also includes: At least four corner codes; The corner bracket is disposed between two adjacent assembly profiles, and the two ends of the corner bracket are fixedly connected to the two adjacent assembly profiles respectively.

4. The profile structure for improving sealing performance according to claim 1, characterized in that, Also includes: At least four connecting screws; the connecting screws are screwed to two adjacent assembly profiles.

5. The profile structure for improving sealing performance according to claim 1, characterized in that, Also includes: At least four sets of angle steel plates; the sets of angle steel plates are disposed between two adjacent assembly profiles, and the two ends of the sets of angle steel plates are respectively fixedly connected to the two adjacent assembly profiles.

6. The profile structure for improving sealing performance according to claim 1, characterized in that, The subframe is detachably connected to the main frame.

7. The profile structure for improving sealing performance according to claim 6, characterized in that, Also includes: Fasteners are screwed to the subframe and the main frame.

8. The profile structure for improving sealing performance according to claim 7, characterized in that, The assembly profile has a mounting groove on the side away from the main frame, and the fastener passes through the mounting groove and extends from the mounting groove toward the main frame.

9. The profile structure for improving sealing performance according to claim 1, characterized in that, The mounting profile has a mounting part on the side away from the main frame, and the mounting part is used to connect the screen window.

10. A side-pressure window system, characterized in that, include: The window sash and the profile structure for improving sealing performance as described in any one of claims 1-9; The window sash is movably connected to the main frame and is located on the indoor side of the sub-frame.

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