A casement window that is easy to clean

CN224729508UActive Publication Date: 2026-09-08ZHEJIANG YUANWANG WINDOWS & DOORS CO LTD
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Patent Information

Application Number
CN202522194275.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-16
Publication Date
2026-09-08
Estimated Expiration
2035-10-16

AI Technical Summary

Technical Problem

[0003]在实际使用过程中,平开窗清洁难度过大,外开扇开启后,室外侧玻璃仍处于悬挑状态,清洁者的手臂需绕过窗扇才能触及玻璃外侧,不仅动作僵硬,还可能因重心不稳导致身体失衡,存在安全风险

Benefits of technology

1.通过设置可沿固定窗框宽度方向滑移的滑移架,以及绕滑移架转动的平开窗框,清洁时可通过滑移滑移架调整平开窗框位置,无需手臂绕过窗扇即可触及玻璃外侧,解决了清洁动作僵硬的问题,同时避免因重心不稳导致的身体失衡,大幅降低清洁过程中的安全隐患,让平开窗清洁操作更轻松、安全;

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Abstract

The application relates to a casement window convenient to clean, which comprises a fixed window frame, two sliding frames, two casement window frames for mounting glass and two locking assemblies, the fixed window frame is mounted on a wall surface, sliding rails are arranged on the fixed window frame, the two sliding frames are slidably connected to the fixed window frame along the width direction of the fixed window frame, the two casement window frames correspond to the two sliding frames, the casement window frames are rotationally connected to the sliding frames along the vertical direction, and the two locking assemblies correspond to the two sliding frames; when the sliding frames abut against the inner side walls of the fixed window frame, the locking assemblies limit the movement of the sliding frames. The application has the effect of improving the cleaning convenience of the casement window.
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Description

Technical Field

[0001] This application relates to the field of casement windows, and more particularly to a casement window that is easy to clean. Background Technology

[0002] Casement windows are a type of window that opens or closes by rotating the sash frame around a hinge. They are a classic type of window widely used in buildings. Their core feature is that when opened, the entire sash frame is freed from the constraints of the window frame, forming a complete and unobstructed ventilation and lighting opening. Their structure and function are significantly different from sliding windows and awning windows.

[0003] In actual use, casement windows are too difficult to clean. After the outward-opening sash is opened, the glass on the outside is still in a cantilevered state. The cleaner's arm has to go around the window sash to reach the outside of the glass. Not only is the movement stiff, but it may also cause the body to lose balance due to instability, which poses a safety risk. Utility Model Content

[0004] To improve the ease of cleaning casement windows, this application provides a casement window that is easy to clean.

[0005] This application provides a casement window that is easy to clean, employing the following technical solution: An easy-to-clean casement window includes a fixed window frame, two sliding brackets, two casement window frames for installing glass, and two locking components. The fixed window frame is installed on a wall and has a sliding rail. The two sliding brackets are slidably connected to the fixed window frame along its width. The two casement window frames correspond to the two sliding brackets. The casement window frames are rotatably connected to the sliding brackets along a vertical axis. The two locking components correspond to the two sliding brackets. When a sliding bracket abuts against the inner wall of the fixed window frame, the locking components restrict the movement of the sliding bracket.

[0006] By adopting the above technical solution, the sliding rail on the fixed window frame allows the two sliding brackets to slide along the width direction. The casement window frame is rotatably connected to the sliding brackets. The locking component restricts the movement of the sliding brackets when they abut against the inner wall of the fixed window frame. This structure changes the situation where the outdoor glass of the outward-opening sash of the traditional casement window is suspended after it is opened, and the cleaner has to walk around the window sash to operate. When cleaning, the position of the casement window frame can be adjusted by sliding the sliding brackets, and the outside of the glass can be reached without having to walk around the window sash. This solves the problem of stiff cleaning movements and avoids body imbalance caused by unstable center of gravity, reducing safety risks and achieving the effect of easy cleaning and improved cleaning safety. In addition, the setting of the two sliding brackets and the casement window frame can ensure the normal ventilation and lighting functions of the casement window without affecting its core usage requirements.

[0007] Optionally, the locking assembly includes an operating lever, a connecting lever, a locking lever, and a retaining member. The length direction of the operating lever is parallel to the height direction of the fixed window frame. The operating lever is slidably connected to the fixed window frame along its length direction. The length direction of the locking lever is parallel to the length direction of the operating lever. The two ends of the connecting lever are respectively disposed on the operating lever and the locking lever. A locking groove is provided on the sliding frame. The locking lever is used to pass through the locking groove of the sliding frame. The retaining member is used to keep the locking lever in the locking groove.

[0008] By adopting the above technical solution, the operating lever slides parallel to the height direction of the fixed window frame and is connected to the fixed window frame. The locking lever is parallel to the operating lever and connected by a connecting rod. The locking groove on the sliding frame allows the locking lever to pass through, and the retaining member keeps the locking lever in the locking groove. This design makes the operation of the locking component more convenient. By sliding the operating lever, the locking lever can be moved in and out of the locking groove to realize the locking and unlocking of the sliding frame. Compared with the complex locking structure, the operation steps are simplified and the convenience of use is improved. At the same time, the retaining member can ensure that the locking lever is stably in the locking groove, ensuring the reliability of the sliding frame's locked state, preventing the sliding frame from moving unexpectedly during the use of the casement window, and ensuring the safety and structural stability of use.

[0009] Optionally, the retaining member includes a retaining gear, a retaining rack, and a coil spring. The length direction of the retaining rack is parallel to the length direction of the operating lever. The retaining rack is disposed on the operating lever. The retaining gear is rotatably connected to the fixed window frame. The retaining gear meshes with the retaining rack. The coil spring is used to drive the retaining gear to rotate and keep the locking lever in the locking groove.

[0010] By adopting the above technical solution, a combination of retaining gear, retaining rack, and coil spring is used. The retaining rack is set on the operating rod parallel to its length. The retaining gear is rotatably connected to the fixed window frame and meshes with the retaining rack. The coil spring drives the retaining gear to rotate, keeping the locking rod in the locking groove. The spring force continuously acts on the retaining gear. Through the meshing transmission between the gear and rack, the retaining rack, the connected operating rod, and the locking rod are kept in the locked position, ensuring that the locking rod is stably engaged in the locking groove. Compared with other retaining structures, this retaining method relying on the spring force is more stable and has an automatic reset capability. Even after long-term use, the retaining effect can be guaranteed, avoiding the inability of the locking component to lock stably due to the failure of the retaining component. This further improves the reliability and service life of the locking component. At the same time, the gear and rack transmission method has high transmission efficiency and a compact structure, without occupying too much extra space, ensuring the rationality of the overall structure of the casement window.

[0011] Optionally, a cavity is provided inside the fixed window frame, the locking component is located inside the cavity, and a handle is provided at one end of the retaining gear, the handle being located outside the fixed window frame.

[0012] By adopting the above technical solution, the cavity design can protect the locking component, preventing external dust, rainwater and other impurities from entering the locking component, preventing the component from jamming or being damaged due to impurities, extending the service life of the locking component, and making the casement window look cleaner, avoiding the locking component being exposed and affecting the aesthetics; while the handle that fixes the outside of the window frame provides a convenient operating part for maintaining the rotation of the gear. When it is necessary to adjust the state of the holding gear or maintain the locking component, it can be easily operated by turning the handle without disassembling the window frame, reducing the difficulty of maintenance and improving the convenience of use and maintenance.

[0013] Optionally, the sliding frame is provided with two first sealing strips, which are distributed along the thickness direction of the fixed window frame. The length direction of the sealing strips is parallel to the height direction of the fixed window frame. The fixed window frame has two first sealing grooves, and the first sealing strips are used to engage with the first sealing grooves.

[0014] By adopting the above technical solution, the cooperation between the first sealing strip and the first sealing groove can effectively enhance the sealing performance between the fixed window frame and the sliding bracket, reduce the seepage of air and rainwater into the room through the gap between the two, and improve the heat preservation, waterproofing and sound insulation of the casement window. The design of the two first sealing strips distributed along the thickness direction forms a double sealing structure. Compared with a single sealing strip, the sealing effect is more significant and can better meet the sealing needs in different environments, ensuring the comfort of the indoor environment. At the same time, the connection method of the first sealing strip snapping into the sealing groove is stable, preventing the first sealing strip from falling off during use and ensuring the durability of the sealing effect.

[0015] Optionally, a second sealing strip is provided on the inner wall of the fixed window frame. The second sealing strip is located between two first sealing grooves. The length of the second sealing strip is parallel to the height direction of the fixed window frame. The sliding bracket has a second sealing groove, and the second sealing strip is engaged with the second sealing groove.

[0016] By adopting the above technical solution, the cooperation between the second sealing strip and the second sealing groove adds another layer of sealing protection on the basis of the double sealing of the first sealing strip, further improving the sealing performance between the fixed window frame and the sliding bracket, effectively blocking the penetration path of air and rainwater, and enhancing the heat preservation, waterproofing and sound insulation effects. Moreover, the design of the second sealing strip being located between the two first sealing grooves makes the sealing structure more rationally distributed, forming multiple complementary sealing layers, avoiding the sealing loopholes that may exist in a single sealing structure, ensuring the overall sealing reliability of the casement window, and better meeting the indoor requirements for environmental comfort.

[0017] Optionally, both the first and second sealing strips have triangular cross-sections, and the fixed window frame and the sliding bracket form a zigzag contact surface through the first and second sealing strips.

[0018] By adopting the above technical solution, the triangular cross-section sealing strip can form a tighter contact when it is inserted into the sealing groove compared to other shapes. The structural characteristics of the triangle enhance the sealing pressure and improve the sealing effect. At the same time, the zigzag contact surface extends the penetration path of air and rainwater, further increasing the penetration resistance compared to planar contact, significantly improving the sealing performance, and better realizing the functions of heat preservation, waterproofing and sound insulation. Moreover, the triangular cross-section sealing strip has a stable structure, is not easily deformed, and can maintain a good sealing state for a long time, extending the service life of the sealing structure and ensuring the sealing reliability of the casement window during long-term use.

[0019] Optionally, the sliding frame is provided with a push handle.

[0020] By adopting the above technical solution, the sliding frame can be easily moved along the sliding rail by pushing the handle, which simplifies the operation steps of the sliding frame and improves the convenience of use.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting a sliding bracket that can slide along the width of a fixed window frame, and a casement window frame that rotates around the sliding bracket, the position of the casement window frame can be adjusted by sliding the sliding bracket during cleaning. This allows you to reach the outside of the glass without having to reach around the window sash with your arm, solving the problem of stiff cleaning movements. It also avoids loss of balance due to an unstable center of gravity, greatly reducing safety hazards during the cleaning process and making casement window cleaning easier and safer. 2. The locking assembly, through the cooperation of the operating lever, connecting lever, and locking lever, allows for locking and unlocking of the sliding frame simply by sliding the operating lever, simplifying the operation process. The retaining component uses a combination of retaining gear, retaining rack, and coil spring. The spring force can continuously act to ensure that the locking lever is stably locked in the locking groove, preventing the sliding frame from moving accidentally. Furthermore, the locking assembly is set in a cavity within the fixed window frame, which can prevent impurities from entering and affecting the performance of the assembly. At the same time, the handle at one end of the retaining gear is located outside the fixed window frame, making it convenient to adjust and maintain the assembly. These designs together ensure structural stability and make use and maintenance more convenient. 3. The first sealing strip on the sliding frame and the first sealing groove on the fixed window frame cooperate to form a double seal. The second sealing strip on the inner wall of the fixed window frame and the second sealing groove on the sliding frame further increase the sealing barrier. Both the first and second sealing strips have triangular cross-sections, creating a zigzag contact surface between the fixed window frame and the sliding frame. This multi-layered sealing structure not only extends the penetration path of air and rainwater but also enhances the resistance to penetration. Attached Figure Description

[0022] Figure 1 This is a structural diagram of a casement window that is easy to clean.

[0023] Figure 2 yes Figure 1 A cross-sectional view of the fixed window frame, used to show the locking components.

[0024] Figure 3 yes Figure 2 Exploded view of the retaining component.

[0025] Figure 4 Used to demonstrate the fit between the first and second sealing strips.

[0026] Reference numerals: 1. Fixed window frame; 11. Cavity; 12. First sealing groove; 2. Sliding bracket; 21. Second sealing groove; 22. Push handle; 23. Locking groove; 3. Casement window frame; 4. Locking assembly; 41. Operating lever; 42. Connecting rod; 43. Locking lever; 44. Retaining element; 441. Retaining gear; 442. Retaining rack; 443. Coil spring; 444. Turn handle; 5. First sealing strip; 6. Second sealing strip. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 This application will be described in further detail.

[0028] This application discloses a casement window that is easy to clean. (See also...) Figure 1 and Figure 2 A casement window that is easy to clean includes a fixed window frame 1, two sliding brackets 2, two casement window frames 3 for installing glass, and two locking components 4. The fixed window frame 1 is fixedly installed on the wall. The inner bottom wall and inner top wall of the fixed window frame 1 are provided with slide rails. The length of the slide rails is parallel to the width direction of the fixed window frame 1. The two sliding brackets 2 are slidably connected to the fixed window frame 1 through the slide rails. The two casement window frames 3 correspond to the two sliding brackets 2. The casement window frames 3 are rotatably connected to the sliding brackets 2 along the vertical rotation axis. The two locking components 4 correspond to the two sliding brackets 2. When the sliding brackets 2 abut against the inner side wall of the fixed window frame 1, the locking components 4 restrict the movement of the sliding brackets 2.

[0029] Reference Figure 2 and Figure 3Two cavities 11 are formed on the fixed window frame 1, and two locking components 4 are respectively located in the two cavities 11. The locking components 4 include two operating rods 41, two connecting rods 42, two locking rods 43, and a retaining member 44. The two locking rods 43 are distributed along the height direction of the fixed window frame 1, and the length direction of the locking rods 43 is parallel to the height direction of the fixed window frame 1. The locking rods 43 are slidably connected to the cavities 11 along the length direction of the locking rods 43, and one end of the locking rods 43 protrudes out of the cavity 11. The two operating rods 41 and the two locking rods 42 are connected to the cavity 11. Correspondingly, the length direction of the operating rod 41 is parallel to the length direction of the locking rod 43. The operating rod 41 slides along the length direction of the operating rod 41 and is connected to the cavity 11. The two connecting rods 42 correspond to the two locking rods 43. The locking rods 43 are set horizontally. The two ends of the locking rods 43 are fixedly set on the corresponding locking rods 43 and the operating rods 41 respectively. The sliding frame 2 has locking grooves 23 on both outer side walls along the height direction of the sliding frame 2. The locking grooves 23 extend vertically. The locking rods 43 are used to engage in the locking grooves 23.

[0030] Reference Figure 2 and Figure 3 The retaining member 44 includes a retaining gear 441, two retaining racks 442, and a coil spring 443. The two retaining racks 442 correspond to the two operating levers 41. The length direction of the retaining racks 442 is parallel to the length direction of the operating levers 41. One end of the retaining racks 442 is fixedly mounted on the operating levers 41. The retaining gear 441 is located between the two retaining racks 442. The axis of the retaining gear 441 is parallel to the thickness direction of the fixed window frame 1. The retaining gear 441 is rotatably connected to the cavity 11. The retaining gear 441 meshes with the two retaining racks 442. The coil spring 443 is coaxially mounted with the retaining gear 441. One end of the coil spring 443 is fixedly mounted on the retaining gear 441, and the other end of the coil spring 443 is fixedly mounted on the inner wall of the cavity 11. A handle 444 is fixedly mounted on one end of the retaining gear 441. The handle 444 is located outside the fixed window frame 1.

[0031] Reference Figure 4Two first sealing strips 5 are provided on the inner wall of the sliding frame 2 facing the fixed window frame 1. The two first sealing strips 5 are distributed along the thickness direction of the fixed window frame 1 and are vertically arranged. The first sealing strips 5 are fixedly arranged on the side wall of the sliding frame 2. Two first sealing grooves 12 are opened on the inner wall of the fixed window frame 1, and the two first sealing grooves 12 correspond to the two first sealing strips 5. A second sealing strip 6 is provided on the inner wall of the fixed window frame 1. The second sealing strip 6 is located between the two first sealing grooves 12 and is vertically arranged. A second sealing groove 21 is opened on the side wall of the sliding frame 2. When the sliding frame 2 abuts against the inner wall of the fixed window frame 1, the first sealing strip 5 is located in the first sealing groove 12 and the second sealing strip 6 is located in the second sealing groove 21. The cross-section of the first sealing strip 5 and the second sealing strip 6 is triangular. The contact surface between the sliding frame 2 and the fixed window frame 1 is wavy. A push handle 22 is provided on the sliding frame 2 for easy pushing by the user.

[0032] The implementation principle of an easy-to-clean casement window according to an embodiment of this application is as follows: the fixed window frame 1 is installed on the wall and is provided with a sliding rail. Two sliding brackets 2 slide along the sliding rail, and the corresponding casement window frame 3 rotates around the vertical axis of the sliding bracket 2. When cleaning, the locking component 4 is unlocked and the sliding bracket 2 is pushed to adjust the position of the casement window frame 3. The outside of the glass can be reached without the need for the arm to wrap around the window sash, thus solving the problems of inconvenience and safety risks in cleaning traditional casement windows.

[0033] In the locking assembly 4, the operating lever 41 slides along the height direction of the fixed window frame 1, and drives the locking lever 43 in the same direction to move via the connecting rod 42. When the sliding frame 2 abuts against the inner side wall of the fixed window frame 1, the locking lever 43 enters the locking groove 23 of the sliding frame 2. The retaining member 44 drives the retaining gear 441 to rotate via the coil spring 443, and meshes with the retaining rack 442 on the operating lever 41, so that the locking lever 43 is stable in the locking groove 23, restricting the movement of the sliding frame 2 to ensure structural stability. The locking assembly 4 is located in the cavity 11 of the fixed window frame 1, which can prevent the influence of impurities. The external handle 444 is convenient for operation and maintenance.

[0034] In terms of sealing, the two first sealing strips 5 of the sliding frame 2 are distributed along the thickness direction of the fixed window frame 1 and engage with the first sealing groove 12 of the fixed window frame 1. The second sealing strip 6 on the inner side wall of the fixed window frame 1 is located between the two first sealing grooves 12 and cooperates with the second sealing groove 21 of the sliding frame 2. Both types of sealing strips have triangular cross sections, so that the fixed window frame 1 and the sliding frame 2 form a zigzag contact surface, which enhances the sealing performance. The sliding frame 2 is provided with a push handle 22 to facilitate pushing the sliding frame 2 to adjust its position.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A casement window that is easy to clean, characterized in that: The device includes a fixed window frame (1), two sliding brackets (2), two casement window frames (3) for installing glass, and two locking components (4). The fixed window frame (1) is installed on the wall. The fixed window frame (1) is provided with a sliding rail. The two sliding brackets (2) are slidably connected to the fixed window frame (1) along the width direction. The two casement window frames (3) correspond to the two sliding brackets (2). The casement window frames (3) are rotatably connected to the sliding brackets (2) along the vertical axis. The two locking components (4) correspond to the two sliding brackets (2). When the sliding brackets (2) abut against the inner wall of the fixed window frame (1), the locking components (4) restrict the movement of the sliding brackets (2).

2. The casement window that is easy to clean according to claim 1, characterized in that: The locking assembly (4) includes an operating lever (41), a connecting rod (42), a locking rod (43), and a retainer (44). The length direction of the operating lever (41) is parallel to the height direction of the fixed window frame (1). The operating lever (41) is slidably connected to the fixed window frame (1) along the length direction of the operating lever (41). The length direction of the locking rod (43) is parallel to the length direction of the operating lever (41). The two ends of the connecting rod (42) are respectively set on the operating lever (41) and the locking rod (43). The sliding frame (2) is provided with a locking groove (23). The locking rod (43) is used to pass through the locking groove (23) of the sliding frame (2). The retainer (44) is used to keep the locking rod (43) in the locking groove (23).

3. A casement window that is easy to clean according to claim 2, characterized in that: The retaining member (44) includes a retaining gear (441), a retaining rack (442), and a coil spring (443). The length direction of the retaining rack (442) is parallel to the length direction of the operating lever (41). The retaining rack (442) is disposed on the operating lever (41). The retaining gear (441) is rotatably connected to the fixed window frame (1). The retaining gear (441) meshes with the retaining rack (442). The coil spring (443) is used to drive the retaining gear (441) to rotate and keep the locking lever (43) in the locking groove.

4. A casement window that is easy to clean according to claim 3, characterized in that: The fixed window frame (1) has a cavity (11) inside, the locking component (4) is located inside the cavity (11), and one end of the retaining gear (441) is provided with a handle (444), which is located outside the fixed window frame (1).

5. A casement window that is easy to clean according to claim 1, characterized in that: The sliding frame (2) is provided with two first sealing strips (5). The two first sealing strips (5) are distributed along the thickness direction of the fixed window frame (1). The length direction of the first sealing strip (5) is parallel to the height direction of the fixed window frame (1). The fixed window frame (1) has two first sealing grooves (12). The first sealing strip (5) is used to be snapped into the first sealing groove (12).

6. A casement window that is easy to clean according to claim 5, characterized in that: A second sealing strip (6) is provided on the inner wall of the fixed window frame (1). The second sealing strip (6) is located between two first sealing grooves (12). The length of the second sealing strip (6) is parallel to the height direction of the fixed window frame (1). A second sealing groove (21) is provided on the sliding frame (2). The second sealing strip (6) is engaged with the second sealing groove (21).

7. A casement window that is easy to clean according to claim 6, characterized in that: The first sealing strip (5) and the second sealing strip (6) are both triangular in cross-section. The fixed window frame (1) and the sliding bracket (2) form a zigzag contact surface through the first sealing strip (5) and the second sealing strip (6).

8. A casement window that is easy to clean according to claim 1, characterized in that: The sliding frame (2) is equipped with a push handle (22).