Door and window structure adopting split type reinforced mullion
By installing split reinforced middle lifts on the traditional middle lift of large-size windows, using screw connections and mounting plates and raised parts, the problem of insufficient strength of traditional middle lifts is solved, the rigidity and torsion resistance of the windows are improved, production costs and deformation risks are reduced, and it is suitable for on-site construction of large-size windows.
Patent Information
- Application Number
- CN202421899439.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-06
AI Technical Summary
Traditionally, the strength of large-sized windows is limited, resulting in deformation of windows. The production cost of large-sized windows is high and the use scenarios are limited, making it difficult to meet the growth of customers' lighting demand.
The door and window structure with split reinforced middle lift is adopted. By installing the reinforced middle lift on one side of the original middle lift, the strength of the middle lift is improved by removable connection of screws, and the support effect and waterproof and dustproof performance are enhanced through the design of the mounting plate, projection and groove.
It improves the rigidity and torsion resistance of the middle shaft, reduces the chance of deformation, reduces production costs, and is suitable for large-sized windows, meeting the flexible needs of on-site construction.
Smart Images

Figure CN222909802U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of doors and windows, in particular to a door and window structure with a split-type reinforced middle mullion. Background Art
[0002] The middle mullion of doors and windows is a material for strengthening the door and window structure and preventing deformation, usually made of aluminum, steel, fiberglass, etc. It plays a supporting role inside the door and window frame, can ensure the stability, strength and sealing performance of the doors and windows, and increase the service life of the doors and windows.
[0003] However, with the increasing demand of customers for indoor lighting, the horizontal dimension span of some windows is relatively large. Although such windows have good lighting effects, the glass and profiles are heavy, and the traditional middle mullion has limited strength due to the unchanged cross-sectional size. Although a middle mullion with a larger cross-sectional size can be developed separately, it is necessary to re-design all middle mullion products, which not only has high production costs, but also has limited usage scenarios for large-size middle mullions, and is not conducive to flexible on-site construction. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a door and window structure with a split-type reinforced middle mullion, which increases the strength of the original middle mullion through an additional reinforced middle mullion and is conducive to on-site construction.
[0005] To achieve the above purpose, the utility model provides a door and window structure with a split-type reinforced middle mullion, including a middle mullion, and a reinforced middle mullion is arranged on one side of the middle mullion located outdoors or indoors. The reinforced middle mullion is closely attached to the middle mullion and the two are detachably connected by screws; the heights of the reinforced middle mullion and the middle mullion are adapted to each other.
[0006] As a further improvement of the utility model, the reinforced middle mullion includes a mounting plate arranged adjacent to the end face on one side of the middle mullion, and the screw passes through the mounting plate and is threadedly connected to the end face on one side of the middle mullion.
[0007] As a further improvement of the utility model, at least two spaced convex portions are arranged on the outer side of the mounting plate, and the convex portions are abutted against the end face on one side of the middle mullion; the convex portions are parallel to each other.
[0008] As a further improvement of the utility model, the reinforced middle mullion further includes a groove, the groove is arranged on the outer surface of the reinforced middle mullion on the side opposite to the mounting plate, and a through hole for the whole screw to pass through is arranged at the bottom of the groove.
[0009] As a further improvement of the utility model, first clamping portions are arranged on both edges of the opening of the groove; a decorative cover plate is buckled at the opening of the groove, and second clamping portions are arranged on both edges of the decorative cover plate, and the second clamping portions are detachably clamped and matched with the first clamping portions.
[0010] As a further improvement of the present utility model, the middle mullion includes a first middle mullion module, a heat insulation strip, and a second middle mullion module that are spliced in sequence from the outdoor side to the indoor side; the reinforced middle mullion is closely attached to the outdoor-facing end surface of the first middle mullion module.
[0011] As a further improvement of the present utility model, the reinforced middle mullion is a profile structure provided with a cavity, and end caps are buckled on the upper and lower ends of the reinforced middle mullion.
[0012] Beneficial effects
[0013] Compared with the prior art, the advantages of the door and window structure with a split-type reinforced middle mullion of the present utility model are as follows:
[0014] 1. There is no need to change the structure of the original middle mullion. Instead, a reinforced middle mullion is installed on one side of the original middle mullion, thereby playing a supporting role for the middle mullion, improving its rigidity, and reducing the probability of deformation of the original middle mullion. This method only requires re-designing the structure of the reinforced middle mullion, and the development and manufacturing costs are low.
[0015] 2. The mounting plate of the reinforced middle mullion does not directly contact the original middle mullion with the entire plate surface, but contacts the original middle mullion through at least two spaced-apart protrusions, reducing the probability of insufficient support caused by the uneven end surfaces of the mounting plate and the original middle mullion.
[0016] 3. The screw first penetrates into the reinforced middle mullion through the through hole of the groove on one side of the reinforced middle mullion, then passes through the mounting plate and is connected to the original middle mullion. The groove on the reinforced middle mullion is buckled by a decorative cover plate, and end caps are buckled on the cutouts at both ends of the reinforced middle mullion, reducing the probability of rainwater and dust entering the inner cavity of the reinforced middle mullion.
[0017] Through the following description and in combination with the accompanying drawings, the present utility model will become clearer. These drawings are used to explain the embodiments of the present utility model. Description of the drawings
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0019] Figure 1 It is a top view cross-sectional view of the door and window structure with a split-type reinforced middle mullion;
[0020] Figure 2 It is an exploded view of the original middle mullion and the reinforced middle mullion;
[0021] Figure 3 It is a rear view of the reinforced middle mullion. Detailed implementation manners
[0022] Now, embodiments of the present utility model will be described with reference to the accompanying drawings.
[0023] Embodiment
[0024] The detailed implementation manners of the present utility model are as Figures 1 to 3 shown. A door and window structure adopting a split-type reinforced middle mullion includes a middle mullion 1. On one side of the middle mullion 1 located outdoors or indoors, there is a reinforced middle mullion 2. The reinforced middle mullion 2 is closely attached to the middle mullion 1 and the two are detachably connected by screws 3. The heights of the reinforced middle mullion 2 and the middle mullion 1 are adapted to each other. The middle mullion 1 is the original middle mullion.
[0025] The reinforced middle mullion 2 includes a mounting plate 22 arranged adjacent to the end face on one side of the middle mullion 1. The screw 3 passes through the mounting plate 22 and is threadedly connected to the end face on one side of the middle mullion 1.
[0026] On the outer side of the mounting plate 22, there are at least two spaced-apart protrusion parts 21. The protrusion parts 21 are in contact with the end face on one side of the middle mullion 1. The protrusion parts 21 are parallel to each other. In this embodiment, there are two spaced-apart protrusion parts 21 on the outer side of the mounting plate 22. The two protrusion parts 21 are respectively located at the left and right ends of the mounting plate 22. The protrusion parts 21 are strip-shaped, and their lengths are the same as the height of the vertically arranged reinforced middle mullion 2.
[0027] The reinforced middle mullion 2 further includes a groove 23. The groove 23 is arranged on the outer surface of the reinforced middle mullion 2 on the side opposite to the mounting plate 22. A through hole for the whole screw 3 to pass through is provided at the bottom of the groove 23. During installation, the constructor makes the screw 3 first pass through the through hole of the groove 23 on one side of the reinforced middle mullion 2 into the reinforced middle mullion 2, and then makes the screw 3 pass through the mounting plate 22 and connect with the original middle mullion 1.
[0028] On both edges of the opening of the groove 23, there are first clamping parts 24. A decorative cover plate 4 is buckled at the opening of the groove 23. On both edges of the decorative cover plate 4, there are second clamping parts 41. The second clamping parts 41 and the first clamping parts 24 are detachably clamped and matched.
[0029] The middle mullion 1 includes a first middle mullion module 11, a heat insulation strip 12 and a second middle mullion module 13 that are spliced in sequence from outdoors to indoors. In this embodiment, the reinforced middle mullion 2 is closely attached to the end face of the first middle mullion module 11 facing outdoors.
[0030] The reinforced middle mullion 2 is a profile structure provided with a cavity. End caps 5 are buckled at the upper and lower ends of the reinforced middle mullion 2.
[0031] The groove 22 on the reinforced middle mullion 2 is buckled by the decorative cover plate 4, and the cut ends at both ends of the reinforced middle mullion 2 are buckled by the end caps 5, which can effectively reduce the probability of rainwater and dust entering the inner cavity of the reinforced middle mullion 2.
[0032] The product does not need to change the structure of the original mullion. Instead, a reinforced mullion 2 is installed on one side of the original mullion 1, so as to support the mullion 1, improve its rigidity and torsional resistance, and reduce the probability of deformation of the original mullion. This method only needs to redesign the structure of the reinforced mullion, and the development and manufacturing costs are low.
[0033] In addition to the above embodiments, the reinforced mullion 2 can also be installed on the end face of the second mullion module 13 facing the indoor side, but this installation method will occupy indoor space.
[0034] The above describes the present utility model in combination with the best embodiments, but the present utility model is not limited to the disclosed embodiments above, and should cover various modifications and equivalent combinations made according to the essence of the present utility model.
Claims
1. A door and window structure using a split reinforced center support, characterized in that: The invention comprises a center support (1), wherein a reinforced center support (2) is provided on one side of the center support (1) located outdoors or indoors, the reinforced center support (2) is closely attached to the center support (1) and the two are detachably connected via screws (3); the heights of the reinforced center support (2) and the center support (1) are adapted to each other.
2. A door and window structure using a split reinforced center brace according to claim 1, characterized in that: The reinforced center support (2) comprises a mounting plate (22) arranged adjacent to the end surface of one side of the center support (1), and the screw (3) passes through the mounting plate (22) and is threadedly connected to the end surface of one side of the center support (1).
3. A door and window structure using a split reinforced center support according to claim 2, characterized in that: At least two spaced-apart raised portions (21) are provided on the outer side of the mounting plate (22), and the raised portions (21) abut against the end surface of one side of the middle support (1); the raised portions (21) are parallel to each other.
4. A door and window structure with split reinforced center brace according to claim 2, characterized in that: The reinforced center support (2) further comprises a groove (23), which is arranged on the outer surface of the reinforced center support (2) at a side opposite to the mounting plate (22), and a through hole is provided at the bottom of the groove (23) for the screw (3) to pass through as a whole.
5. A door and window structure using a split reinforced center support according to claim 4, characterized in that: The opening edges of the groove (23) are both provided with first clamping parts (24); the opening of the groove (23) is buckled with a decorative cover plate (4); the opening edges of the decorative cover plate (4) are both provided with second clamping parts (41); the second clamping parts (41) are detachably clamped with the first clamping parts (24).
6. The door and window structure using a split reinforced center support according to claim 1, characterized in that: The center support (1) comprises a first center support module (11), a heat insulation strip (12) and a second center support module (13) which are sequentially connected from the outside to the inside; the reinforced center support (2) is closely attached to the end surface of the first center support module (11) facing the outside.
7. The door and window structure using a split reinforced center support according to claim 1, characterized in that: The reinforced center support (2) is a profile structure provided with a cavity, and end covers (5) are buckled at the upper and lower ends of the reinforced center support (2).