False mullion sealing structure of casement window

By installing PVC end caps and edge strips on the upper and lower end faces of the false mullion profile for casement windows, the problem of poor sealing of the false mullion structure is solved, achieving a high-efficiency sealing effect and a simplified installation process, while meeting energy-saving and environmental protection standards.

CN223753979UActive Publication Date: 2026-01-02HUNAN JINHUI ENERGY CONSERVATION DOOR & WINDOWS &CURTAIN WALL
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Patent Information

Application Number
CN202423094857.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2026-01-02
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

The existing casement window false mullion structure has improper sealing design at the upper and lower ends, resulting in the overall window's airtightness failing to meet the energy-saving and environmental protection requirements of modern buildings.

Method used

The false mullion profile is fitted with PVC end caps on the upper and lower end faces. The end caps are fixed to the profile through a plug-in or slot assembly structure. First and second edge strips are set on the end caps to cover the gap between the window sash and the false mullion, thereby enhancing the sealing performance.

Benefits of technology

It improves the overall sealing performance and airtightness of casement windows, meets the energy-saving and environmental protection requirements of modern buildings, simplifies the assembly process, and reduces the difficulty and cost of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sealing structure for a false mullion of a casement window, which comprises a false mullion section bar, one side of the false mullion section bar is integrally assembled with a window sash, and the false mullion section bar can be opened and closed along with the window sash on the side; the upper end face and the lower end face of the false mullion profile are sealed through end covers. The end cover is provided with an outer contour matched with the open port, the inner side of the end cover is fixedly assembled with the open port of the false mullion profile, a first flange strip and a second flange strip are formed on the outer side of the end cover, and the first flange strip and the second flange strip are both perpendicular to the opening direction of the window sash; the first flange strip is formed on the outdoor side and has the structural size capable of shielding a gap between the window sash and the false mullion on the outdoor side. The second flange strip is formed on the indoor side and has the structural size capable of shielding the gap between the window sash and the false mullion on the indoor side. The sealing performance and the waterproof performance of the window are improved, the stability and the durability of the window are enhanced, and the requirements of modern buildings for energy conservation, environmental protection and attractiveness of doors and windows are met.
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Description

TECHNICAL FIELD

[0001] The utility model relates to building door and window structure technical field, concretely relates to a flat -open window false middle stand sealing structure. BACKGROUND

[0002] As an important component of building facade, doors and windows bear diversified functions according to their different positions. In the field of architecture, doors and windows are divided into two categories: enclosure structure and opening structure. The main responsibility of the door and window of the enclosure structure is to resist the influence of the external environment on the building interior (such as wind and rain and noise), while also bearing the functions of heat preservation and heat insulation. On the other hand, the door and window of the opening structure ensure the circulation of indoor and outdoor air and the freedom of personnel access.

[0003] As a common window structure, the flat -open window is characterized in that the sash rotates around the outer window shaft, and the sash rotates around the horizontal shaft outside, thereby realizing the flat -push opening effect outward or inward. This type of window is favored for its simple structure, strong stability, easy cleaning, ventilation and lighting, etc. However, most of the flat -open windows on the market are equipped with a middle stand in the middle, which reduces the visible area and limits the view when the window is opened. The false middle stand structure is an innovative design of a virtual middle stand structure, which can be used to overcome the limitations of traditional middle stands. It sets a virtual middle stand between the two sashes through the false middle stand profile, realizes the maximum opening area, and ensures that there is no obstruction in the middle, thereby achieving the best visual effect. However, the existing false middle stand structure still has limitations in design, especially the upper and lower end positions of the false middle stand, which are the weak points of the whole window sealing. If the sealing structure is not designed properly, it may result in substandard air tightness of the whole window. With the increasing requirements of modern buildings for energy saving and environmental protection, this design deficiency may make the whole window unable to meet the relevant energy saving and environmental protection standards.

[0004] Based on the above reasons, a component needs to be designed to cooperate with the related production process to ensure good sealing of the upper and lower ends of the false middle stand. UTILITY MODEL CONTENTS

[0005] The technical problem solved by the utility model lies in providing a flat -open window false middle stand sealing structure, which can be used to solve the defects in the above technical background.

[0006] The technical problem solved by the utility model is realized by adopting the following technical solutions:

[0007] A flat -open window false middle stand sealing structure, comprising a false middle stand profile, the false middle stand profile has an assembly part on one side, the false middle stand profile is assembled with the sash on the outer edge of the sash on one side through the assembly part, and can be opened and closed with the sash on one side; the false middle stand profile has an open end face on the upper and lower end faces, and the end face is closed by an end cover on the open end face;

[0008] The end cover has an outer profile matching the open port, and is fixedly assembled with the open port of the false mullion profile on the inner side, and is formed with a first baffle strip and a second baffle strip on the outer side respectively, both of which are perpendicular to the opening direction of the sash; the first baffle strip is formed on the outdoor side and has a structural size capable of shielding the gap between the sash and the false mullion on the outdoor side; the second baffle strip is formed on the indoor side and has a structural size capable of shielding the gap between the sash and the false mullion on the indoor side.

[0009] As a further limitation, the end cover is made of PVC material.

[0010] As a further limitation, the end cover is assembled with the open port of the false mullion profile on the inner side through a structural assembly, which is preferably a plug-in assembly structure or a clamping groove assembly structure;

[0011] The cross section of the false mullion profile includes at least two independent cavities, the plug-in assembly structure is a plug-in seat matching the size of the cavity, and the plug-in seat is fixedly assembled on the inner side of the open port of the false mullion profile through a pressure assembly mode, so as to realize the stable connection of the end cover and the false mullion profile;

[0012] The clamping groove assembly structure includes a matching clamping groove and a clamping piece; the clamping groove is arranged on the inner side of the open port of the false mullion profile, and the clamping piece is arranged at a corresponding position of the end cover; when the end cover is assembled with the false mullion profile, the clamping piece can be locked by clamping into the clamping groove, so as to ensure the close connection of the end cover and the false mullion profile;

[0013] The end cover is further formed with an insertion protrusion matching the size of the rubber strip groove of the false mullion profile at the position of the rubber strip groove as an assembly positioning structure.

[0014] As a further limitation, the outer edge of the first baffle strip and the second baffle strip of the end cover is formed with an elastic sealing edge structure, which can better fit the edge of the sash and reduce the penetration of air and rainwater.

[0015] As a further limitation, the end cover is further provided with a side protrusion structure capable of compensating the structural position of the hardware notch of the false mullion profile.

[0016] Beneficial effects: the utility model discloses a flat -open window false middle stand sealing structure can overcome the inherent defect of flat -open window false middle stand assembly structure, improves integral sealing performance and assembly efficiency, and it is through installing end cap to the upper and lower end surface of false middle stand section, realizes the effective sealing of false middle stand upper and lower end, and this sealing structure design not only ensures the energy -saving performance of window, but also meets the strict requirement of modern building to environmental protection, significantly improves the air tightness of whole window. In addition, the assembly mode of end cap and false middle stand section is flexible and various, can be adjusted according to the specific false middle stand section cross section shape, effectively simplifies the assembly process, reduces the operation difficulty, ensures the stable connection of end cap and false middle stand section, thereby guaranteeing the reliability of structure. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the end surface schematic view of the utility model preferable embodiment not setting end cap.

[0018] Figure 2 It is the false middle stand section structure schematic view of the utility model preferable embodiment.

[0019] Figure 3 It is the three-dimensional structure diagram of end cap of the utility model preferable embodiment.

[0020] Figure 4 It is the inside side view of end cap of the utility model preferable embodiment.

[0021] Figure 5 It is the end surface schematic view of the utility model preferable embodiment after assembling end cap.

[0022] Wherein: 1, hollow toughened glass; 2, left window sash section bar; 3, false middle stand section bar; 4, sealing rubber strip; 5, right window sash section bar; 6, sealing glue; 7, rubber strip groove I; 8, cavity I; 9, cavity II; 10, rubber strip groove II; 11, combined section bar I; 12, heat insulation strip; 13, combined section bar II; 14, first baffle strip; 15, end cap base body; 16, second baffle strip; 17, insertion protrusion II; 18, insertion seat I; 19, insertion seat II; 20, insertion protrusion I; 21, side boss. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific drawings.

[0024] Referring to Figures 1-5 A preferable embodiment of the utility model discloses a flat -open window false middle stand sealing structure, in the embodiment, the flat -open window of the flat -open window false middle stand sealing structure is the structure design of window sash outward push, and it is on the side corresponding to the indoor side of A mark in Figure 1 The end surface of the end cap is provided with the insertion protrusion I of the insertion seat I, and the insertion protrusion II of the insertion seat II is arranged on the other end surface of the end cap. Figure 1The side of the middle B mark is the outdoor side, and the user can push the sash from the side of the A mark to the outside to realize the opening operation of the window body.

[0025] In the embodiment, the casement window with a false mullion structure comprises a left sash, a right sash and a false mullion. The left sash and the right sash are both typical casement window sash structures, and each comprises a left sash profile 2 and a right sash profile 5. The hollow tempered glass 1 is embedded in the left sash profile 2 and the right sash profile 5, and the outer edge is sealed and edge-closed by the sealing glue 6.

[0026] The main body of the false mullion is a false mullion profile 3. The structure of the false mullion profile 3 is shown in Figure 2 The false mullion profile 3 has an independently formed combined profile I 11 and a combined profile II 13, and the combined profile I 11 and the combined profile II 13 are connected by two heat insulation strips 12. The combined profile I 11 has a cavity I 8, and the combined profile II 13 has a cavity II 9. In addition, the cavity II 9 has outer sides on both sides, and the inner side of each outer side is formed with a glue strip groove I 7 and a glue strip groove II 10, respectively. The false mullion profile 3 has an assembly part on one side of the left sash profile 2. The false mullion profile 3 can be assembled with the left sash profile 2 at the assembly part position, and can be fastened with the left sash profile 2 by screws or other fasteners if necessary. The false mullion profile 3 can move together with the opening and closing action of the left sash profile 2, so as to realize the opening and closing of the casement window together with the separately opened right sash profile 5. The main function of the false mullion profile 3 is to enhance the stability of the sash, and to form a mullion effect in vision, so as to make the window more beautiful in appearance.

[0027] Referring to Figure 1 The false mullion sealing structure end face diagram of the embodiment without setting the end cover. In the structure without setting the end cover, the false mullion of the casement window is similar to the structure of the prior art, and the difference is only in the structure of the false mullion sealing, but the corresponding sealing features are the same. Under the technical condition of this structure, if no additional end cover structure is set, the false mullion profile 3 must have a gap with the upper and lower window frames at the upper and lower ends, so as to avoid scratching or interference. Generally, the gap is greater than or equal to 2mm at the corresponding two mark positions of A and B from the elevation direction. Figure 1

[0028] There is a long rectangular hollow at the upper end and the lower end at the A position, and the outdoor rainwater and air can enter the window body without any obstruction, which has a great impact on the air and water tightness.

[0029] There are left and right flat strip type hollows at the B position, which form a convection with the outside, and the inside of the window can be seen, which affects the appearance.

[0030] ​In order to solve the above problems, the end cover structure is embedded on the upper and lower end faces of the corresponding false centering profile 3. The end cover is made of PVC material and its structure is shown in Figure 3 , Figure 4 The end cover base 15 is a plate structure and its size is matched with the false centering profile 3.

[0031] The structure assembly on the inner side of the end cover base 15 is matched with the false centering profile 3. In this embodiment, the corresponding structure assembly can be a plug-in assembly structure or a clamping groove assembly structure. In this embodiment, the plug-in assembly structure is used, which includes the combination of the plug-in protrusion II 17, the plug-in seat I 18, the plug-in seat II 19 and the plug-in protrusion I 20. The plug-in seat I 18 and the plug-in seat II 19 are the main fixing structures, which are the outward convex plug block structures. The plug-in size and position of the plug-in seat I 18 are matched with the cavity I 8, and the plug-in size and position of the plug-in seat II 19 are matched with the cavity II 9. The plug-in protrusion II 17 and the plug-in protrusion I 20 are the auxiliary fixing and assembly positioning structures, which are matched with the rubber strip groove I 7 and the rubber strip groove II 10 respectively, to ensure that the end cover structure can be quickly and stably fixed on the false centering profile 3.

[0032] Through the structure assembly, the end cover can be fixed and assembled on the open end face of the false centering profile 3 on the inner side. In actual application, the installation process of the end cover structure is simple and fast. First, the plug-in assembly structure of the end cover base 15 is aligned with the corresponding cavity and rubber strip groove of the false centering profile 3, and then the end cover base 15 is integrally pressed on the false centering profile 3 through the auxiliary positioning of the plug-in protrusion II 17 and the plug-in protrusion I 20 to complete the cover assembly of the end cover.

[0033] In order to further improve the assembly effect and sealing effect of the end cover, an appropriate amount of sealing glue can be applied around the plug-in protrusion II 17, the plug-in seat I 18, the plug-in seat II 19 and the plug-in protrusion I 20, and then assembled into the corresponding groove structure of the false centering profile 3.

[0034] The structure of the end face after the cover assembly is shown in Figure 5The cover is formed with a first baffle strip 14 and a second baffle strip 16 on the outer side of the end cover base 15, the first baffle strip 14 and the second baffle strip 16 are designed according to the cross-section height difference of the actual construction of the false mullion profile 3, the first baffle strip 14 can block the gap between the corresponding left sash profile 2 / right sash profile 5 and the false mullion profile 3 on the outdoor side, and the second baffle strip 16 can block the gap between the false mullion profile 3 and the window frame on the indoor side. Through such design, the end cover not only provides stable fixation, but also effectively prevents rainwater, dust and other external factors from entering the indoor through the gap, thereby improving the overall sealing performance of the window.

[0035] In addition, in the present embodiment, the false mullion profile 3 and the right sash profile 5 are also formed with a sealing rubber strip 4 on the indoor side of the closed side, in the present embodiment, the sealing rubber strip 4 is made of a ternary ethylene-propylene rubber strip with good elasticity, sealing and weather resistance, which can effectively prevent rainwater and sand from entering the indoor, in use, the left sealing rubber strip 4 is pre-pressed and deformed to lay flat on the outer surface of the false mullion profile 3 to form a barrier, and then the right sealing rubber strip 4 is overlapped on the left sealing rubber strip 4 when the sash is closed to form a seal, which can further improve the sealing effect.

[0036] In another embodiment, a sealing strip groove can be designed on the outer side of the end cover base 15 in cooperation with the second baffle strip 16 and the first baffle strip 14, and a sealing strip is embedded in the sealing strip groove as an elastic sealing structure, the material of the sealing strip is usually rubber or plastic or other elastic material, so that in the closed state, the sealing strip can tightly fit the surface of the false mullion profile 3, further enhancing the sealing effect.

[0037] In addition, in the present embodiment, considering that the false mullion profile 3 can be provided with a hardware notch for improving the connection stability between the structure of the left sash profile 3, the corresponding end cover is formed with a side boss 21 on the corresponding position of the inner side of the end cover base 15 to effectively compensate the structure of the corresponding side hardware notch of the false mullion profile 3.

[0038] In summary, the flat window false mullion sealing structure of the present embodiment improves the sealing performance of the window through the innovative design of the end cover structure, simplifies the installation process, makes the sealing effect of the window more reliable, and reduces the construction difficulty and cost.

[0039] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by the skilled in the art that the purposes of these embodiments are only for illustrating the present application and are not intended to limit the protection scope of the present application. In addition, it should also be understood that after reading the technical content of the present application, the skilled in the art can make various modifications, modifications and / or variations to the present application, and all these equivalent forms also fall within the protection scope defined by the appended claims of the present application.

Claims

1. A casement window dummy mullion seal structure, characterized by, The false mullion profile has an assembly part on one side, and is assembled with the side sash edge and the sash as a whole and can be opened and closed with the side sash; the false mullion profile has open end faces on the upper and lower end faces, and the end caps are used to close the open end faces; The end cap has an outer contour matched with the open port, and is fixedly assembled with the open port of the false mullion profile on the inner side, and the first and second blocking edge strips are respectively formed on the outer side, and the first and second blocking edge strips are perpendicular to the opening direction of the sash; the first blocking edge strip is formed on the outdoor side and has a structure size capable of shielding the gap between the sash and the false mullion on the outdoor side; the second blocking edge strip is formed on the indoor side and has a structure size capable of shielding the gap between the sash and the false mullion on the indoor side.

2. The casement window astragal seal structure according to claim 1, wherein The end cap is made of PVC material.

3. The casement window false mullion seal structure according to claim 1, wherein The end cap is assembled with the open port of the false mullion profile on the inner side through a structural assembly part, and the structural assembly part is a plug-in assembly structure or a clamping groove assembly structure.

4. The casement window false mullion seal structure according to claim 3, wherein, The false mullion profile includes at least two independent cavities in the cross section, the plug-in assembly structure is a plug-in seat matched with the size of the cavity, and the plug-in seat is fixedly arranged in the inner side of the open port of the false mullion profile through a pressure assembly mode, so as to realize the stable connection between the end cap and the false mullion profile.

5. The sealed casement window mullion construction of claim 3, wherein, The clamping groove assembly structure includes a matched clamping groove and a clamping piece; the clamping groove is arranged in the inner side of the open port of the false mullion profile, and the clamping piece is arranged at the corresponding position of the end cap; when the end cap is assembled with the false mullion profile, the clamping piece can be clamped into the clamping groove to complete the locking, so as to ensure the close connection between the end cap and the false mullion profile.

6. The casement window false mullion seal structure according to claim 3, wherein The end cap is further formed with an insertion protrusion matched with the size of the rubber strip groove of the false mullion profile at the position of the rubber strip groove of the false mullion profile as an assembly positioning structure.

7. The sealed casement window mullion construction of claim 1, wherein, The outer edges of the first and second blocking edge strips of the end cap are formed with elastic sealing edge structures.

8. The casement window false mullion seal structure according to claim 1, wherein The end cap is further provided with a side protruding table structure capable of compensating the structural position of the hardware notch of the false mullion profile.