Casement window structure easy to clean
By installing sealing strips and filler strips on the casement window sash and adding grooves at the joints, the problem of dust accumulation on the sealing strips is solved, achieving easy cleaning and a good sealing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-03-31
AI Technical Summary
The sealing strips of existing casement windows are prone to accumulating dust and are difficult to clean, especially in the recessed area at the bottom of the window frame, where cleaning is challenging.
The sealing strip is installed on the window sash, and a groove is provided at the connection between the sealing strip and the filler strip on the sash frame. A heat insulation strip is provided between the filler strip and the window frame profile. The upper surface of the filler strip is the same as the upper surface of the inner frame of the window frame. The window sash can be adjusted for easy cleaning.
It achieves easy cleaning of the sealing strip, prevents dust from accumulating inside the sealing strip, provides a good sealing effect, and is easy to clean.
Smart Images

Figure CN224064200U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of casement window technology, and in particular to a casement window structure that is easy to clean. Background Technology
[0002] Casement windows are widely used in mid-to-high-end buildings such as commercial and residential buildings, office buildings, upscale residences, and villas in cities. Existing casement windows typically have a sealing strip on the window frame and a filler material on the window sash that works in conjunction with the sealing strip; the two work together to achieve a seal when closed. However, the sealing strip is usually recessed, which easily accumulates dust over time. Furthermore, the sealing strip is fixed to the window frame and is inconvenient to remove, making dust difficult to clean. Especially for windows located at the bottom of the frame, dust is drawn into the recess due to gravity, accumulating even more easily and becoming difficult to clean thoroughly. Utility Model Content
[0003] To address the problems of the prior art, this utility model provides an easy-to-clean casement window structure, in which a sealing strip is placed on the window sash. Dust does not easily accumulate in the recessed area of the sealing strip, and cleaning is more convenient.
[0004] The technical solution adopted is as follows:
[0005] An easy-to-clean casement window structure includes a window frame and a window sash hinged to the window frame. The window sash frame has a sealing strip in the middle, and the corresponding part of the window frame has a filler strip that cooperates with the sealing strip.
[0006] Furthermore, the fan frame has a first profile on the outdoor side and a second profile on the indoor side, and the sealing strip is located between the first and second profiles.
[0007] Furthermore, the window frame has a third profile on the outdoor side and a fourth profile on the indoor side, with the filler strip located between the third and fourth profiles.
[0008] Furthermore, thermal insulation strips are provided between the first and second profiles of the sash frame, and between the third and fourth profiles of the window frame.
[0009] Furthermore, a groove is provided at the connection between the sealing strip and the filler strip.
[0010] Furthermore, the upper plane of the filler strip is on the same plane as the upper plane inside the frame of the fourth profile.
[0011] Furthermore, sealing elements are provided between the first profile and the third profile, and between the second profile and the fourth profile.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This utility model provides an easy-to-clean casement window structure, including a window frame and a window sash. A sealing strip is provided on the sash frame, and a filler block that cooperates with the sealing strip is provided at a corresponding position on the window frame. The outer sides of each filler block have a flat surface, and the upper surface of the filler block is at the same height and on the same plane as the upper inner surface of the window frame. Therefore, the two sides of the filler block on the window frame are flat, making it easier to clean and less prone to dust accumulation. The grooved sealing strip is located on the sash frame and can move with the window sash. During cleaning, the angle can be adjusted according to actual needs to clean the sealing strip. Furthermore, the sealing strip is located on the sash frame, which is the outer frame and exposed to the outside, facilitating cleaning of the sealing strip. Due to gravity, dust is less likely to accumulate inside the sealing strip. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the casement window of this utility model;
[0015] Figure 2 for Figure 1 A cross-sectional view facing the AA direction;
[0016] Figure 3 for Figure 2 Disassembly diagram;
[0017] Among them, window frame 1, window sash 2, sash frame 201, sealing strip 3, filling strip 4, groove 5, first profile 6, second profile 7, third profile 8, fourth profile 9, thermal insulation strip 10, upper inner surface of frame 11, and sealing element 12. Detailed Implementation
[0018] The present invention will be further described below with reference to specific embodiments.
[0019] refer to Figure 1 , 2 3. An easy-to-clean casement window structure, including a window frame 1 and a window sash 2 hinged to the window frame 1, wherein a sealing strip 3 is provided in the middle of the sash frame 201 of the window sash 2, and a filler strip 4 that cooperates with the sealing strip is provided at the corresponding position of the window frame 1.
[0020] The window sash 2 is hinged to the window frame 1 and can be opened inward or outward. In this embodiment, an outward-opening window is used as an example, but this structure is also applicable to inward-opening windows.
[0021] The sealing strip 3 and the filler strip 4 are connected by a groove 5. With the sealing strip 3, the window frame 1 and window sash 2 fit more tightly when the window is closed, resulting in a better seal. In the prior art, the sealing strip 3 with the groove is placed on the window frame 1, which is generally fixed, making it difficult to clean the dust accumulated in the sealing strip. Therefore, the sealing strip 3 is now placed on the sash frame 201 of the window sash. The sash 2 can rotate relative to the window frame 1, and the opening angle is adjustable. The angle of the sash 2 can be adjusted according to actual needs, making it easier to clean the dust accumulated in the groove 5 of the sealing strip 3. Furthermore, the sash frame 201 is the outer frame, and compared to the inner frame of the window frame 1, the outer frame is less prone to dust accumulation. Dust will fall off under gravity and is less likely to accumulate in the groove.
[0022] The fan frame 201 has a first profile 6 on the outdoor side and a second profile 7 on the indoor side, and the sealing strip is located between the first and second profiles.
[0023] The window frame 1 has a third profile 8 on the exterior side and a fourth profile 9 on the interior side, with the filler strip 4 positioned between the third and fourth profiles. The filler strip 4 is positioned close to the fourth profile 9. When the window sash is closed, the sealing strip 3 cooperates with the filler strip 4 to create a seal.
[0024] Thermal insulation strips 10 are provided between the first profile 6 and the second profile 7 of the sash frame 201, and between the third profile 8 and the fourth profile 9 of the window frame 1. The sealing strip 3 is connected to the thermal insulation strips provided between the first and second profiles; the filling strip 4 is connected to the thermal insulation strips provided between the third and fourth profiles.
[0025] Preferably, the upper surface 401 of the filler strip 4 and the upper surface 11 inside the frame of the fourth profile 9 are on the same plane. The outer side of the filler strip 4 is flat. By setting the upper surface 401 and the upper surface 11 inside the frame on the same plane, no groove is formed, making the flat surface easier to clean and less prone to dust accumulation.
[0026] A sealing element 12 is provided between the first profile 6 and the third profile 8, and between the second profile 7 and the fourth profile 9. The sealing element 12 can be a rubber strip, which can achieve a better sealing effect when closed.
[0027] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.
Claims
1. A casement window structure easy to clean, comprising a window frame (1) and a sash (2) hinged to the window frame (1), characterized in that: The middle part of the sash (2) is provided with a sealing rubber strip (3), the corresponding part of the window frame (1) is provided with a filling strip (4) matched with the sealing rubber strip, the connecting part of the sealing rubber strip (3) and the filling strip (4) is provided with a groove (5), and the upper plane (401) of the filling strip (4) is in the same plane with the in-frame upper plane (11) of the fourth profile (9) arranged on the outdoor side of the window frame.
2. The easy-to-clean casement window structure according to claim 1, wherein: The sash (201) is provided with a first profile (6) on the outdoor side and a second profile (7) on the indoor side, and the sealing rubber strip is arranged between the first profile and the second profile.
3. The easy-to-clean casement window structure according to claim 1, wherein: The window frame (1) is provided with a third profile (8) on the outdoor side, and the filling strip (4) is arranged between the third profile and the fourth profile.
4. The easy-clean casement window structure of claim 1, wherein: The first profile (6) and the second profile (7) of the sash (201) and the third profile (8) and the fourth profile (9) of the window frame (1) are all provided with heat insulation strips (10).
5. The easy-clean casement window structure according to claim 4, wherein: The first profile (6) and the third profile (8) and the second profile (7) and the fourth profile (9) are all provided with sealing elements (12).