A solid wood casement sash jamb blocking piece
Patent Information
- Application Number
- CN202522225867.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-10-22
AI Technical Summary
然而,先开窗扇和后开窗扇之间的密封问题一直是该领域长期存在的技术难点和共性挑战,严重制约了对开窗扇产品最终的水密性能和气密性能,直接影响用户的使用体验
(1)创新性结构设计:通过在与先开窗扇对接的后开窗扇上增设独立的附梃封堵件,将传统的平面对接密封转变为立体搭接密封,从根本上改变了密封路径,极大提升了先开窗扇与后开窗扇之间竖向结合缝隙的密封可靠性;
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Figure CN224834845U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building door and window technology, specifically relating to a solid wood double-leaf window sash stile sealing component, which is a sealing structure that can effectively seal the vertical gap between double-leaf windows and the gap between their upper and lower ends. Background Technology
[0002] In the field of building doors and windows, double-hung windows are favored by the market due to their large opening range, good ventilation, and impressive appearance. However, the sealing problem between the first and second opening window sashes has always been a long-standing technical challenge and common difficulty in this field, which seriously restricts the final water tightness and air tightness of double-hung window products and directly affects the user experience.
[0003] This problem is particularly prominent for solid wood double-hinged window sashes. Current solid wood double-hinged window sashes primarily rely on sealing strips installed on the frame profiles for sealing, achieved by compressing the sealing strips when the window sashes close. However, this traditional method has inherent drawbacks: First, the vertical joint between the first and second opening sashes (i.e., the seam between the double-hinged sashes) usually relies solely on the elastic filling of the sealing strip. With prolonged use, material deformation, or slight installation deviations, gaps easily appear at this point, becoming major channels for air and water leakage. Second, the upper and lower ends of the double-hinged window sashes, especially the corner area where the second opening sash meets the window frame, often become weak points in the seal due to their complex structure and discontinuous sealing lines, making effective sealing difficult.
[0004] Systematic analysis revealed that the vertical gaps at the joints of the solid wood double-leaf window sashes and the gaps at the top and bottom are the core factors causing poor sealing and resulting in air and water leaks. This not only reduces the product's energy-saving and insulation performance but may also lead to indoor environmental problems, increase user complaints, and raise maintenance costs for manufacturers. Therefore, the industry urgently needs an innovative sealing solution that can fundamentally solve the sealing defects in the middle and ends of solid wood double-leaf window sashes, thereby improving the overall performance and market competitiveness of the product. Summary of the Invention
[0005] This utility model addresses the shortcomings of existing technologies by providing a cleverly designed, easy-to-install, and highly effective sealing component for solid wood double-opening window sashes. Its main objectives are: firstly, to effectively block and seal the vertical joint gap between the first and second opening window sashes, significantly improving the water tightness and air tightness of the double-opening window sash; secondly, to precisely seal the gaps between the upper and lower ends of the second opening window sash and the door frame, achieving a complete closure of the sealing line and eliminating air and water leakage at its source; and finally, while achieving excellent sealing performance, to enhance the overall aesthetics of the double-opening window sash and ensure smooth opening and closing.
[0006] To achieve the above-mentioned objectives, this utility model adopts the following technical solution: A solid wood double-opening window sash stile sealing component is disclosed. The double-opening window sash includes a first-opening window sash and a second-opening window sash. The sealing strip includes a sealing edge and an installation edge. The sealing strip is fixedly installed on the side of the second-opening window sash corresponding to the closed edge of the first-opening window sash via the installation edge. The stile sealing component includes a stile body and an upper cover and a lower cover fixedly installed at both ends of the stile body. The stile body is a long plate structure. The stile body is fixedly installed on the inner side of the second-opening window sash. The stile body is wider than the second-opening window sash by an extension section. A groove for accommodating the sealing edge of the sealing strip is formed on the extension section of the stile body.
[0007] Preferably, the upper cover includes a main body covering part, a limiting wall is provided on the outer side of the main body covering part, a thin-walled sealing part extending outward is provided on the edge of the main body covering part, and two screw holes are provided on the upper surface of the main body covering part.
[0008] Preferably, the cross-section of the main body of the stile is a long, narrow, trapezoidal shape with rounded corners, and one side of the wide surface of the main body of the stile is fixedly connected to the edge of the rear-opening window sash.
[0009] Preferably, the main body of the stile is made of solid wood, the same material as the double-leaf window sash.
[0010] Preferably, the side of the stile of the rear window stile, which corresponds to the closing edge of the first window stile, is provided with a rubber strip mounting groove, and the mounting edge of the sealing rubber strip is adapted to the rubber strip mounting groove on the rear window stile.
[0011] Preferably, the sealing strip is made of EPDM rubber.
[0012] Preferably, the main body of the stile is bonded to the structure with wood adhesive and fixed to the edge stile of the rear-opening window sash by a number of pneumatic nails.
[0013] Compared with the prior art, the present invention has the following significant advantages: (1) Innovative structural design: By adding an independent mullion sealing component to the rear window sash that is connected to the first window sash, the traditional planar butt sealing is transformed into a three-dimensional overlapping sealing, which fundamentally changes the sealing path and greatly improves the sealing reliability of the vertical joint gap between the first and rear window sashes. (2) Thorough end sealing: The innovative design of upper and lower custom-made caps that match the main body of the mullion achieves precise and complete coverage of the weakest upper and lower corner areas of the seal, solving the industry problem of traditional sealing strips breaking and failing at this point; (3) Improved overall performance: This utility model not only significantly improves the water tightness and air tightness of the double-opening window sash, but also enhances the overall structural strength and visual appeal of the product, achieving a unity of function and form; (4) Strong applicability and easy to promote: The solution has a modular structure and can be customized and produced according to different project needs. It is easy to modify and can be promoted and applied in the existing double-opening window product line. It has high economic value and market prospects. Attached Figure Description
[0014] Figure 1 This is a perspective view of a double-leaf window sash according to an embodiment of the present utility model; Figure 2 for Figure 1 Schematic diagram of the cross section in the AA direction; Figure 3 for Figure 1 Cross-sectional schematic diagram of the rear-opening window sash in the BB direction; Figure 4 This is a top view of the main body of the mullion according to an embodiment of the present utility model; Figure 5 This is a perspective view of the upper cover of an embodiment of the present utility model; Figure 6 This is a front view of the upper cover of an embodiment of the present utility model; Figure 7 for Figure 6 Schematic diagram of the cross section in the CC direction; Figure 8 This is a bottom view of the upper cover of an embodiment of the present utility model; Figure 9 This is a top view of the upper cover of an embodiment of the present utility model; Figure 10 This is a cross-sectional schematic diagram of the sealing strip according to an embodiment of the present utility model; In the diagram, 1 is the main body of the stile, 1-1 is the groove, 2 is the upper cover, 2-1 is the limiting wall, 2-2 is the thin-walled sealing part, 2-3 is the screw hole, 3 is the sealing strip, 3-1 is the sealing edge, 3-2 is the installation edge, 4 is the upper window frame, 5 is the first-opening window sash, 6 is the second-opening window sash, 7 is the lower cover, and 8 is the lower window frame. Detailed Implementation
[0015] Reference Figures 1 to 9 This utility model embodiment provides a specific application example of a solid wood double-leaf window sash stile sealing component.
[0016] (1) Construction and preparation of the mullion sealing component.
[0017] The mullion sealing component in this embodiment mainly consists of two core components: one is the mullion body 1, which is fixedly installed on the rear window sash 6, and the other is the caps (upper cap 2 and lower cap 7) fixedly installed at both ends of the mullion body 1.
[0018] Attached mullion 1: The attached mullion 1 is a long board structure. The length of the attached mullion 1 is slightly less than the height of the rear window sash 6. It is made of solid wood of the same material as the double-opening window sash. The cross-section of the attached mullion 1 is a long strip with rounded corners, resembling a trapezoid. When the double-opening window sash is closed, the narrower surface of the attached mullion 1 is located on the inside. One side of the wider surface of the attached mullion 1 is glued and fixed to the side mullion surface of the rear window sash 6 located on the inside side of the room after it is closed, and is reinforced with pneumatic nails. The other side of the wider surface of the attached mullion 1 extends beyond the side mullion of the rear window sash 6 by a section. The extension section of the attached mullion 1 is used to cover the vertical joint gap in the middle of the double-opening window sash and to accommodate the sealing edge 3-1 of the sealing strip 3 on the rear window sash 6. On the side of the sealing edge 3-1 of the sealing strip 3 facing the central vertical joint gap, a groove 1-1 is pre-milled on the main body 1 of the stile. The groove 1-1 is used to set the sealing edge 3-1 of the sealing strip 3. The main body 1 of the stile is made of solid wood of the same material as the double-hinged window sash, which can ensure the overall aesthetic appearance of the double-hinged window sash. The stile refers to the vertical section of the frame of the double-hinged window sash near the central joint.
[0019] Upper cover 2 and lower cover 7: These are integrally molded using injection molding or rubber molding processes, and have identical structures. The structures of the upper cover 2 and lower cover 7 are customized based on the end shape of the main body 1, the end face of the side stile of the rear-opening window sash 6, and the contours of the upper window frame 4 and lower window frame 8. The upper cover 2 includes a main body covering portion, with a limiting wall 2-1 on the outer side to ensure accurate positioning. The edge of the main body covering portion is designed with outwardly extending thin-walled sealing portions 2-2. The upper surface of the main body covering portion has two screw holes 2-3 for fixing and installing the upper cover 2.
[0020] Sealing strip 3: Made of EPDM rubber with excellent elasticity and aging resistance. Sealing strip 3 includes an integral sealing edge 3-1 and an installation edge 3-2. The sealing edge 3-1 has a long strip cross-section, and the installation edge 3-2 has a T-shaped cross-section with barbs. The cross-sectional shape of the sealing edge 3-1 matches the groove 1-1. A mounting groove for the sealing strip is provided on the side of the stile of the rear-opening window stile 6, corresponding to the closing edge of the first-opening window stile 5. The installation edge 3-2 of the sealing strip 3 is adapted to the mounting groove on the rear-opening window stile 6.
[0021] (2) Installation and implementation steps: Step 1: Installation of the main body of the stile 1.
[0022] First, clean the surface of the stiles of the rear-opening window sash 6 that require the installation of the stile body 1 to ensure that they are flat and free of oil stains.
[0023] Then, apply high-performance wood adhesive evenly to the fixing and bonding surface on one side of the main body 1 of the mullion.
[0024] Next, the main body of the stile 1 is precisely positioned and fixedly bonded to the edge of the rear-opening window sash 6, so that the extension of the main body of the stile 1 corresponds to the closed edge of the first-opening window sash 5, and the length direction of the main body of the stile 1 is completely parallel to the edge of the rear-opening window sash 6.
[0025] After initial pressing and fixing, use a pneumatic nail gun to drive several pneumatic nails from the side of the rear-opening window sash 6 towards the main body of the sash 1 for reinforcement, achieving a firm connection between the side of the rear-opening window sash 6 and the main body of the sash 1 using "adhesive bonding as the main method and pneumatic nails as a supplementary method". Wipe away any excess wood adhesive to complete the installation of the main body of the sash 1.
[0026] Step 2: Installation of sealing strip 3.
[0027] Press the prepared sealing strip 3 evenly along its length into the sealing strip mounting groove of the rear window sash 6, with the mounting edge 3-2 of the sealing strip 3 in place. Simultaneously, embed the sealing edge 3-1 of the sealing strip 3 into the groove 1-1 on the main body 1 of the stile, ensuring that the sealing strip 3 is installed smoothly without twisting or coming off the groove. The barbs on the mounting edge 3-2 ensure a secure installation of the sealing strip 3.
[0028] Step 3: Install the upper cover 2.
[0029] Align the upper cover 2 with the upper end of the mullion body 1, so that the limiting wall 2-1 on its outer side is tightly against the outer surface of the mullion body 1. Then, use short self-tapping screws to screw vertically into the reserved screw holes 2-3 to secure the upper cover 2 to the solid wood at the upper end of the mullion body 1.
[0030] The installation of the lower cover 7 is the same as that of the upper cover 2.
[0031] (3) Working principle and sealing effect: When the double-opening window sashes are closed, the first-opening window sash 5 rotates with the hinge, and the closed edge of the first-opening window sash 5 is finally pressed against the sealing edge 3-1 of the sealing strip 3. Due to the rigid support of the main body 1 of the stile, the sealing edge 3-1 of the sealing strip 3 is fully compressed, thereby achieving a linear seal on the vertical joint gap between the first-opening window sash 5 and the second-opening window sash 6.
[0032] Meanwhile, the upper cover 2 and lower cover 7 installed on the upper and lower ends of the main body 1 of the stile completely cover the end of the rear window sash 5 where it connects to the main body 1 of the stile, thus preventing direct wind exposure at that point; and the thin-walled sealing part extending outward effectively blocks the gap between the upper and lower ends of the rear window sash 6 and the upper window frame 4 and lower window frame 8, transforming the point and line leakage path into a three-dimensional barrier that needs to be bypassed and penetrated, thus achieving a three-dimensional sealing and plugging of the end.
[0033] In summary, this utility model embodiment combines the linear sealing of the "attached main body 1 - sealing strip 3" with the three-dimensional covering sealing of the "upper cover 2 and lower cover 7" to form a multi-layered and efficient sealing system, which fundamentally solves the leakage problem of air and water leakage in the middle vertical joint gap and the ends of the double-leaf window sash.
[0034] In this embodiment of the utility model, all technical features not described in detail are existing technologies or conventional technical means, and will not be repeated here.
[0035] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model.
Claims
1. A solid wood double-opening window sash stile sealing component, wherein the double-opening window sash includes a first-opening window sash (5) and a second-opening window sash (6), and a sealing strip (3) includes a sealing edge (3-1) and an mounting edge (3-2), wherein the sealing strip (3) is fixedly installed on the side of the stile of the second-opening window sash (6) corresponding to the closed edge of the first-opening window sash (5) via the mounting edge (3-2), characterized in that, The mullion sealing component includes a mullion body (1) and an upper cover (2) and a lower cover (7) fixedly installed at both ends of the mullion body (1). The mullion body (1) is a long plate structure. The mullion body (1) is fixedly installed on the inner side of the mullion of the rear window sash (6). The mullion body (1) is wider than the mullion of the rear window sash (6) by an extension section. A groove (1-1) for accommodating the sealing edge (3-1) of the sealing strip (3) is opened on the extension section of the mullion body (1).
2. The solid wood double-leaf window sash sealing component according to claim 1, characterized in that, The upper cover (2) includes a main body covering part, a limiting wall (2-1) is provided on the outer side of the main body covering part, a thin-walled sealing part (2-2) extending outward is provided on the edge of the main body covering part, and two screw holes (2-3) are provided on the upper surface of the main body covering part.
3. A solid wood double-leaf window sash sealing component according to claim 1, characterized in that, The cross-section of the main body of the stile (1) is a long strip with rounded corners, resembling a trapezoid. One side of the wide surface of the main body of the stile (1) is fixedly connected to the side stile of the rear-opening window sash (6).
4. A solid wood double-leaf window sash sealing component according to claim 3, characterized in that, The main body of the stile (1) is made of solid wood of the same material as the double-leaf windows.
5. A solid wood double-leaf window sash sealing component according to claim 1, characterized in that, A rubber strip mounting groove is provided on the side of the stile corresponding to the closed edge of the first-opening window stile (5), and the mounting edge (3-2) of the sealing rubber strip (3) is adapted to the rubber strip mounting groove on the second-opening window stile (6).
6. A solid wood double-leaf window sash sealing component according to claim 5, characterized in that, (3) The sealing strip is made of EPDM rubber.
7. A solid wood double-leaf window sash sealing component according to claim 1, characterized in that, The main body of the stile (1) is bonded to the structure by wood adhesive and fixed to the edge of the rear window sash (6) by several air nails.