Mullion structure of inward opening window

Abstract

The utility model relates to the field of casement windows, in particular to a mullion structure of an inward opening window, which comprises a window frame, a transverse mullion is fixed in the middle of the window frame and comprises a broken bridge rubber strip, an inner mullion profile and an outer mullion profile, the broken bridge rubber strip is integrally formed in an injection mode, and the inner mullion profile and the outer mullion profile are integrally formed in an extrusion mode. The inner mullion profile and the outer mullion profile are each provided with a cavity, a solid part is arranged on one side of each cavity, a rubber frame is arranged in the middle of the broken bridge rubber strip, the two sides of the rubber frame are connected to the inner mullion profile and the outer mullion profile respectively, and a reinforcing rib shaped like a Chinese character'mi 'is arranged in the rubber frame. Solid parts are arranged on the inner mullion profile and the outer mullion profile respectively, the double-solid structure of the transverse mullion is achieved, the strength of the transverse mullion is improved, meanwhile, the inner mullion profile and the outer mullion profile are convenient to produce, broken bridge rubber strips are further arranged at broken bridges and are of a rubber frame structure, and the service life of the broken bridge rubber strips is prolonged. And the reinforcing ribs are arranged in the rubber frame, so that the wind pressure resistance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casement windows, in particular to a mullion structure of an inward-opening window. Background Technique

[0002] The casement window is a common type of window. Its characteristic is that the window sash is fixed to one side of the window frame through hinges, enabling the window sash to open inwards or outwards. Due to different environments and application floors in various regions, casement windows need to have functions such as heat insulation, heat preservation, and wind pressure resistance. For example, in coastal cities or high-rise building usage scenarios, casement windows with better wind pressure resistance are required. However, the existing outer frames of casement windows do not have a strengthening structure. At the same time, since current casement windows all adopt the broken bridge aluminum profile structure, the outer profile and the inner profile need to be connected through rubber strips. The existing rubber strips are too thin, and the structural strength of the mullion needs to be improved. Referring to the utility model patent with the publication (announcement) number: CN219262135U and the patent name "A Reinforced Mullion Combination Structure for Casement Windows", its solution is to set a reinforcement inside the mullion profile. Such a casement window mullion still has deficiencies. Installing the reinforcement inside the mullion complicates the production process, and most of the assembly is done manually, resulting in a decrease in production efficiency. Content of the Utility Model

[0003] The utility model aims to provide a mullion structure of an inward-opening window to solve the above-mentioned technical problems and achieve the purpose of improving the structural strength of the mullion and thus enhancing the wind pressure resistance performance.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A mullion structure of an inward-opening window, including a window frame. A horizontal mullion is fixed in the middle of the window frame. The horizontal mullion includes a broken bridge rubber strip formed by integral injection molding, and an inner mullion profile and an outer mullion profile formed by integral extrusion molding. Both the inner mullion profile and the outer mullion profile have cavities. One side of the cavity is provided with a solid part. A rubber frame is arranged in the middle of the broken bridge rubber strip. The two sides of the rubber frame are respectively connected to the inner mullion profile and the outer mullion profile. A "rice" - shaped reinforcing rib is arranged inside the rubber frame.

[0005] Further, it also includes a movable sash and a fixed sash. The movable sash and the fixed sash are respectively arranged on both sides of the horizontal mullion. The window frame includes an outer profile frame and an inner profile frame. The outer profile frame and the inner profile frame are connected by a broken bridge rubber strip. Both ends of the outer mullion profile are connected to the outer profile frame, and both ends of the inner mullion profile are connected to the inner profile frame.

[0006] Further, the solid part of the inner mullion profile is arranged inside the cavity chamber, so as to form a female corner part for lapping the movable sash between the bottom of the solid part and the cavity.

[0007] Furthermore, the frame is rectangular, and the reinforcing ribs include four diagonal ribs and four straight ribs. One end of each of the four diagonal ribs is connected to a corner of the frame, and one end of each of the four straight ribs is connected to the middle of a side of the frame.

[0008] Furthermore, the thermal break strip has multiple snap-fit ​​parts on both sides facing the outer mullion profile and the inner mullion profile, and mounting grooves on the other two sides. The inner mullion profile and the outer mullion profile facing each other each have a slot for connecting the snap-fit ​​parts.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting solid parts on the inner mullion profile and the outer mullion profile respectively, a double solid structure of the horizontal mullion is realized, which improves the strength of the horizontal mullion, facilitates the production of the inner mullion profile and the outer mullion profile, and also sets a thermal break strip at the thermal break point. The thermal break strip is set as a rubber frame structure, and reinforcing ribs are set in the rubber frame, thereby improving the wind pressure resistance. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the horizontally placed central mullion in this utility model.

[0012] Figure 3 This is a perspective view of the inner mullion profile in this utility model.

[0013] Figure 4 This is a schematic diagram of the structure of the interrupted bridge rubber strip of this utility model.

[0014] Figure 5 This is a schematic diagram of the window frame structure in this utility model.

[0015] In the diagram: Window frame 1, horizontal mullion 2, outer profile frame 11, inner profile frame 12, thermal break strip 21, inner mullion profile 22, outer mullion profile 23, movable sash 30, fixed sash 40, cavity 200, solid part 202, rubber frame 210, diagonal rib 211, straight rib 212, snap-fit ​​part 213, mounting groove 214, slot 221, internal corner part 2022. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] As shown in the attached diagram, this utility model discloses a mullion structure for an inward-opening window. The window frame 1 includes a window frame 1, which comprises vertical profile groups and horizontal profile groups. A horizontal mullion 2 is fixed to the middle of the window frame 1, with both ends connected to the vertical profile groups. The horizontal mullion 2 includes an integrally injection-molded thermal break strip 21, and integrally extruded inner mullion profile 22 and outer mullion profile 23. The thermal break strip 21 is disposed between the inner mullion profile 22 and the outer mullion profile 23. This is a conventional thermal break profile structure, with an integrally molded thermal break strip... Strip 21 facilitates production and improves the strength of the thermal break strip 21. Both the inner mullion profile 22 and the outer mullion profile 23 have cavities 200. A solid part 202 is provided on one side of the cavity 200, that is, both the inner mullion profile 22 and the outer mullion profile 23 have solid parts 202. A frame 210 is provided in the middle of the thermal break strip 21. The frame 210 is closed. The two sides of the frame 210 are respectively connected to the inner mullion profile 22 and the outer mullion profile 23. The frame 210 has "rice" shaped reinforcing ribs inside.

[0018] This utility model discloses a mullion structure with an inward-opening window. By setting solid portions 202 on the inner mullion profile 22 and the outer mullion profile 23 respectively, solid portions 202 are effectively provided to replace the cavity 200 and the reinforcing members set in the cavity 200, realizing a double solid structure of the horizontal mullion 2. This improves the strength of the mullion and facilitates the production of the inner mullion profile 22 and the outer mullion profile 23. The setting of solid portions 202 means that there is no need to open the cavity 200 in this area, reducing the production steps of opening the cavity 200 and thus improving production efficiency. Furthermore, a thermal break strip 21 is set at the thermal break point. The thermal break strip 21 is set as a frame 210 structure, and reinforcing ribs are set in the frame 210 to improve wind pressure resistance.

[0019] Specifically, the inward-opening window also includes a movable sash 30 and a fixed sash 40, which are respectively arranged on both sides of the horizontal mullion 2. As shown in the figure, the fixed sash 40 is arranged on the upper side of the horizontal mullion 2, and the movable sash 30 is arranged on the lower side of the horizontal mullion 2. Alternatively, the movable sash 30 can be arranged on the upper side of the horizontal mullion 2, and the fixed sash 40 can be arranged on the lower side. The window frame 1 includes an outer profile frame 11 and an inner profile frame 12. This belongs to the existing thermal break window structure, which is divided into an outer profile frame 11 and an inner profile frame 12. The outer profile frame 11 and the inner profile frame 12 are connected by a thermal break strip 21. Both ends of the outer mullion profile 23 are connected to the outer profile frame 11, and both ends of the inner mullion profile 22 are connected to the inner profile frame 12. Furthermore, the outer mullion profile 23 is connected to the outer profile frame 11 by a corner bracket, and the inner mullion profile 22 is connected to the inner profile frame 12 by a corner bracket. The positions of the thermal break strip 21 between the outer profile frame 11 and the inner profile frame 12 and the thermal break strip 21 set on the horizontal mullion 2 correspond to each other.

[0020] Specifically, the solid part 202 of the inner mullion profile 22 is disposed on the interior side of the cavity 200, thereby forming a recessed corner 2022 for overlapping the movable sash 30 between the bottom of the solid part 202 and the cavity 200, as shown in the figure. The solid part 202 is located in the middle of the interior side of the cavity 200, and the fixed sash 40 is located on the upper side of the horizontal mullion 2. The glass of the fixed sash 40 is fixed by a baffle and a pressure line cover. This belongs to the existing casement window structure. It should be noted that the pressure line cover is located on the interior side, and the interior side of the pressure line cover is a plane. This plane is flush with the interior side of the solid part 202 of the inner mullion profile 22. The recessed corner 2022 located below is used for overlapping when the movable sash 30 is closed, thereby making the interior side of the movable sash 30 flush with the interior side of the solid part 202. Alternatively, the solid part 202 of the inner mullion profile 22 can be widened so that the top of the solid part 202 is flush with the top of the cavity 200, and the plane of the inner side of the pressure cover needs to be shortened accordingly.

[0021] As shown in the figure, the frame 210 is rectangular, and the reinforcing ribs include four diagonal ribs 211 and four straight ribs 212. One end of each of the four diagonal ribs 211 is connected to a corner of the frame 210, and one end of each of the four straight ribs 212 is connected to the middle of each side of the frame 210. One end of each of the four diagonal ribs 211 and the four straight ribs 212 is connected to each other. The frame 210 is rectangular, meaning it has four side walls inside, and there are corners between adjacent side walls, i.e., it has four corners. Each of the four corners is supported by four diagonal ribs 211, and each of the four straight ribs 212 supports the middle of the four side walls.

[0022] Specifically, the thermal break strip 21 has multiple snap-fit ​​parts 213 on both sides facing the outer mullion profile 23 and the inner mullion profile 22, and mounting grooves 214 on the other two sides. The inner mullion profile 22 and the outer mullion profile 23 have slots 221 for connecting the snap-fit ​​parts 213 on their respective facing sides, as shown in the figure. The thermal break strip 21 has two snap-fit ​​parts 213 on each side, and the inner mullion profile 22 and the outer mullion profile 23 also have two slots 221 on their respective facing sides. By pressing the snap-fit ​​parts 213 into the slots 221, the thermal break strip 21 and the inner mullion profile 22 / outer mullion profile 23 are fixedly connected.

[0023] The above embodiments are preferred embodiments of this utility model. All structures similar to this utility model and equivalent changes thereof should fall within the protection scope of this utility model.

Claims

1. A mullion structure for an inward-opening window, comprising a window frame, wherein a horizontal mullion is fixed in the middle of the window frame, characterized in that: The horizontally arranged middle mullion includes a broken bridge rubber strip formed by integral injection molding, and inner and outer middle mullion profiles formed by integral extrusion. Both the inner and outer middle mullion profiles have cavities, and a solid part is provided on one side of each cavity. A rubber frame is provided in the middle of the broken bridge rubber strip. The two sides of the rubber frame are respectively connected to the inner and outer middle mullion profiles, and a "rice" shaped reinforcing rib is provided inside the rubber frame.

2. The mullion structure for an inwardly opening window according to claim 1, characterized in that: It further includes a movable sash and a fixed sash, which are respectively arranged on both sides of the horizontally arranged middle mullion. The window frame includes an outer profile frame and an inner profile frame, and the outer profile frame and the inner profile frame are connected by a broken bridge rubber strip. Both ends of the outer middle mullion profile are connected to the outer profile frame, and both ends of the inner middle mullion profile are connected to the inner profile frame.

3. The mullion structure for an inwardly opening window according to claim 2, characterized in that: The solid part of the inner middle mullion profile is arranged on the inner side of the cavity chamber, so as to form a fillet part for lapping the movable sash between the bottom of the solid part and the cavity.

4. The mullion structure for an inwardly opening window according to claim 1, characterized in that: The rubber frame is rectangular. The reinforcing rib includes four diagonal ribs and four straight ribs. One end of each of the four diagonal ribs is respectively connected to each corner of the rubber frame, and one end of each of the four straight ribs is respectively connected to the middle of each side surface of the rubber frame.

5. The mullion structure for an inwardly opening window according to claim 1, characterized in that: Multiple clamping parts are provided on both sides of the broken bridge rubber strip facing the outer and inner middle mullion profiles, and mounting grooves are provided on the other two sides. On the side surfaces of the inner and outer middle mullion profiles facing each other, clamping grooves for connecting the clamping parts are provided.

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