Window structure with elastic press-fit type dustproof wool tops

Abstract

The window structure comprises a window frame and a window sash arranged on the window frame in a swinging mode, the radial section of the bottom wall of the window frame is arranged in a step shape and forms a step face used for being in clearance fit with the bottom wall of the window sash when the window sash and the window frame are closed, and a dustproof blanket is laid on the step face. The dustproof blanket is formed by sequentially stacking and adhering a surface layer, a middle layer and a bottom layer, a connecting structure used for detachably connecting the laying blanket with the bottom wall of the window frame is arranged between the bottom layer and the step surface, and the surface layer is a fluff layer formed by processing elastic knitted fibers through a weaving or tufting or needling process. The side-hung window solves the problems that dust is prone to being accumulated at the bottom of a window frame of a traditional side-hung window, and accumulated dust is difficult to deal with.

Description

Technical Field

[0001] This utility model relates to the field of casement window technology, specifically a window structure with elastically press-fit dustproof strips. Background Technology

[0002] In the field of building doors and windows, casement windows are widely used due to their advantages such as good sealing and large ventilation area. Currently, the bottom of the traditional casement window frame is usually designed with a stepped structure to achieve a stable fit between the window sash and the window frame. This structure has significant defects in long-term use: when the window sash and the window frame are not closed, dust and debris easily accumulate on the stepped surface. Moreover, since the stepped surface is mostly a right angle or groove structure, the dust accumulation problem gradually worsens, thus affecting the aesthetics and making it difficult to clean. In order to prevent dust accumulation in the window frame, traditional casement windows install dustproof strips on the window frame. The dustproof strips are usually fixed to the bottom of the window frame and are glued to the window frame with adhesive technology, making it difficult to remove the dustproof strips or to reinstall them after removal, thus making it impossible to clean the dustproof strips. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a window structure with an elastically press-fit dustproof strip, which solves the problem of dust accumulation at the bottom of traditional casement windows and the difficulty in removing the accumulated dust.

[0004] To achieve the above objectives, this utility model provides a window structure with an elastically press-fit dustproof strip, including a window frame and a window sash that is swayed and mounted on the window frame. The radial cross-section of the bottom wall of the window frame is stepped and forms a stepped surface for gap fitting with the bottom wall of the window sash when the window sash and the window frame are closed. A dustproof blanket is laid on the stepped surface. The dustproof blanket is made by stacking and bonding a top layer, a middle layer and a bottom layer in sequence. A connecting structure is provided between the bottom layer and the stepped surface for detachably connecting the laid blanket to the bottom wall of the window frame. The top layer is a pile layer formed by processing elastic knitted fibers through weaving, tufting or needle punching processes.

[0005] The advantages of adopting the above technical solution are as follows: By laying a dustproof blanket consisting of a surface layer, a middle layer, and a bottom layer on the window frame step surface, the soft properties of the elastic knitted fiber pile layer of the surface layer allow the pile layer to deform naturally under pressure when the window sash and window frame are closed, tightly filling the gaps and effectively blocking dust from passing through. At the same time, the dustproof blanket allows dust to accumulate on the surface layer when the window sash is open, preventing dust from accumulating at the bottom of the window frame and becoming difficult to clean. The weaving process of the elastic knitted fibers in the above technology gives the surface layer good resilience, ensuring smooth and unobstructed opening and closing of the window sash, meeting dustproof requirements without affecting the user experience. The stacked and bonded structure of the middle layer and the bottom layer enhances the overall stability of the dustproof blanket, and the detachable connection structure between the bottom layer and the step surface facilitates daily disassembly and cleaning, solving the problem of traditional fixed dustproof strips being difficult to clean.

[0006] The present invention further includes: the dustproof blanket has through holes at both ends; the stepped surface has fixing holes at the positions corresponding to the two through holes; the connecting structure includes two insert shafts; the two insert shafts correspond one-to-one with the two through holes and are movably disposed in the corresponding through holes along the direction of movement of the through holes; the outer peripheral wall of the top of the insert shaft is provided with a pressure ring for pressing against the surface of the dustproof blanket; and the two insert shafts are each fitted into their respective adjacent and corresponding fixing holes.

[0007] The advantages of adopting the above technical solution are as follows: The technology utilizes the interlocking holes, fixing holes, and insert shafts to achieve rapid installation and removal of the dustproof blanket from the bottom wall of the window frame. The pressure ring at the top of the insert shaft presses the dustproof blanket surface firmly onto the step surface, avoiding material aging or residue problems caused by using glue or other fixing methods. It also ensures that the dustproof blanket remains stable even after long-term compression and deformation. The interlocking design of the insert shaft and fixing holes simplifies the installation process, requiring no professional tools and facilitating user maintenance and replacement. The symmetrical design of the interlocking holes and insert shafts at both ends disperses the lateral stress generated during window sash compression, preventing unilateral displacement or tearing of the dustproof blanket, thus improving the reliability and service life of the dustproof structure, making it particularly suitable for windows that are frequently opened and closed.

[0008] The present invention further comprises: two limiting grooves are formed on the inner peripheral wall of the fixing hole along its opening direction; two limiting plates are provided on the insertion shaft; the two limiting plates are arranged and staggered along the axis of the insertion shaft; the two limiting plates on the insertion shaft correspond one-to-one with the two limiting grooves in the corresponding fixing hole and are inserted into each other.

[0009] The advantages of adopting the above technical solution are: the staggered insertion design of the limiting groove and the limiting plate in the above technology effectively restricts the axial movement of the insertion shaft in the fixing hole, avoiding the problem of the insertion shaft loosening due to repeated opening and closing vibration of the window sash. The limiting structure achieves precise positioning through mechanical cooperation. During installation, the insertion shaft only needs to be inserted along the direction of the limiting groove to automatically align, reducing the difficulty of installation. The staggered limiting plate and limiting groove can withstand bidirectional extrusion force. When the window sash applies pressure to the dustproof blanket in different directions, the limiting structure can provide stable support to ensure that the dustproof blanket is always tightly attached to the step surface and maintains a good dustproof sealing effect.

[0010] The present invention further includes: anti-detachment grooves are provided on the inner peripheral wall of the fixing hole corresponding to the two limiting grooves, and the two anti-detachment grooves are connected to their respective limiting grooves. The two anti-detachment grooves are arranged along the axis of the fixing hole and are staggered. The insertion shaft is inserted into the insertion hole, and after the insertion shaft rotates, the limiting plate rotates through the limiting groove to be set in the anti-detachment groove.

[0011] The advantages of adopting the above technical solution are as follows: The interconnected design of the anti-disengagement groove and the limiting groove allows the limiting plate to enter the anti-disengagement groove through rotation after the insert shaft is inserted into the fixing hole, forming a circumferential locking state and effectively preventing the insert shaft from being accidentally pulled out. This "insertion-rotation" dual locking mechanism retains convenient installation and disassembly functions while significantly improving the reliability of the connection structure, making it particularly suitable for outdoor windows or environments subject to wind and vibration. The staggered arrangement of the anti-disengagement groove and the limiting groove ensures that the limiting plate is fully embedded in the anti-disengagement groove after the insert shaft rotates, avoiding the problem of the limiting plate slipping out due to long-term vibration. This provides a durable and stable fixing effect for the dust blanket, reduces safety hazards during use, and extends the service life of the entire window structure.

[0012] The present invention further comprises: the bottom layer being an elastic knitted fabric.

[0013] The advantages of adopting the above technical solution are: the bottom layer of the above technology uses elastic knitted fabric, which has good tensile resilience and forms an elastic support structure with the elastic knitted fiber pile layer of the surface layer. When the window sash squeezes the dustproof blanket, the bottom elastic knitted fabric can deform synchronously with the surface layer, avoiding the stress concentration problem caused by the rigid material of the bottom layer, so that the entire dustproof blanket maintains uniform elastic deformation when under pressure, ensuring that the window sash can be closed without obstruction.

[0014] The present invention further comprises: the intermediate layer being made of foamed material.

[0015] The advantages of adopting the above technical solution are: the intermediate layer of the above technology uses foam material, which utilizes the buffering and shock absorption characteristics of its porous structure to provide flexible support when the window sash and window frame are closed. The high elasticity of the foam material allows the dustproof blanket to quickly return to its original shape after being compressed, avoiding permanent deformation caused by long-term compression and ensuring long-term stable sealing performance. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the present invention;

[0017] Figure 2 This is a three-dimensional view of the bottom of the window frame in this utility model;

[0018] Figure 3 This is a simplified cross-sectional view of the step surface and the dustproof blanket in the present invention.

[0019] Figure 4 This is a three-dimensional view of the insertion shaft in this utility model;

[0020] Figure 5 This is a partial three-dimensional view of the fixing hole on the step surface in this utility model;

[0021] Figure 6 This is a simplified view of the layered structure of the dustproof blanket in this utility model. Detailed Implementation

[0022] This utility model provides a window structure with an elastically press-fit dustproof strip, including a window frame 1 and a window sash 11 that is swingably mounted on the window frame 1. The radial cross-section of the bottom wall of the window frame 1 is stepped and has a stepped surface 12 for gap fitting with the bottom wall of the window sash 11 when the window sash 11 is closed with the window frame 1. A dustproof blanket 2 is laid on the stepped surface 12. The dustproof blanket 2 is made of a top layer 21, a middle layer 22 and a bottom layer 23 stacked and bonded together in sequence. A gap is provided between the bottom layer 23 and the stepped surface 12 for... The connection structure allows for detachable connection between the carpet and the bottom wall of the window frame 1. The surface layer 21 is made of elastic knitted fibers processed by weaving, tufting, or needle punching to form a pile layer. The dustproof carpet 2 has insertion holes 24 at both ends. Fixing holes 121 are provided on the stepped surface 12 corresponding to the two insertion holes 24. The connection structure includes two insertion shafts 3, each corresponding to one of the two insertion holes 24, and the two insertion shafts 3 are movably positioned within the corresponding insertion holes 24 along the direction of movement of the insertion holes 24. The top of each insertion shaft 3 is externally... A pressure ring 31 is provided circumferentially on the periphery for pressing against the surface of the dustproof blanket 2 layer 21. Each of the two insertion shafts 3 is inserted into its adjacent and corresponding fixing hole 121. Two limiting grooves 122 are formed on the inner periphery of each fixing hole 121 along its opening direction. Two limiting plates 32 are provided on the insertion shaft 3, arranged and staggered along the axis of the insertion shaft 3. The two limiting plates 32 on the insertion shaft 3 correspond one-to-one with the two limiting grooves 122 in the corresponding fixing hole 121 and are inserted into it. The fixing hole 121 is provided with anti-detachment grooves 123 at the positions of the two limiting grooves 122 on the inner peripheral wall. The two anti-detachment grooves 123 are connected to their respective limiting grooves 122. The two anti-detachment grooves 123 are arranged along the axis of the fixing hole 121 and are staggered. The insertion shaft 3 is inserted into the insertion hole 24. After the insertion shaft 3 rotates, the limiting plate 32 rotates through the limiting groove 122 to be set in the anti-detachment groove 123. The bottom layer 23 is made of elastic knitted fabric, and the middle layer 22 is made of foam material.

[0023] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A window structure with an elastically press-fit dustproof weatherstripping, comprising a window frame and a window sash pivotally mounted on the window frame, wherein the radial cross-section of the bottom wall of the window frame is stepped and forms a stepped surface for clearance engagement with the bottom wall of the window sash when the window sash and window frame are closed, characterized in that: The step surface is covered with a dustproof blanket, which is made of a top layer, a middle layer and a bottom layer stacked and bonded together in sequence. A connecting structure is provided between the bottom layer and the step surface for detachably connecting the blanket to the bottom wall of the window frame. The top layer is made of elastic knitted fibers processed by weaving, tufting or needle punching to form a pile layer.

2. The window structure with elastically pressed dustproof strip according to claim 1, characterized in that: The dustproof blanket has through holes at both ends, and fixing holes are provided on the stepped surface corresponding to the two through holes. The connecting structure includes two insert shafts, which correspond one-to-one with the two through holes and are movably installed in the corresponding through holes along the direction of the through holes. The outer peripheral wall of the top of the insert shaft is provided with a pressure ring for pressing against the surface of the dustproof blanket. Both insert shafts are inserted into their respective adjacent and corresponding fixing holes.

3. A window structure with an elastically pressed dustproof weatherstripping according to claim 2, characterized in that: The inner peripheral wall of the fixing hole has two limiting grooves along its opening direction. The insertion shaft is provided with two limiting plates. The two limiting plates are arranged and staggered along the axis of the insertion shaft. The two limiting plates on the insertion shaft correspond one-to-one with the two limiting grooves in the corresponding fixing hole and are inserted into each other.

4. A window structure with an elastically pressed dustproof weatherstripping according to claim 3, characterized in that: The inner circumferential wall of the fixing hole is provided with anti-detachment grooves at the positions of the two limiting grooves. The two anti-detachment grooves are connected to their respective limiting grooves. The two anti-detachment grooves are arranged along the axis of the fixing hole and are staggered. The insertion shaft is inserted into the insertion hole, and after the insertion shaft rotates, the limiting plate rotates through the limiting groove to be set in the anti-detachment groove.

5. A window structure with an elastically pressed dustproof weatherstripping according to claim 1, characterized in that: The bottom layer is made of elastic knitted fabric.

6. A window structure with an elastically pressed dustproof weatherstripping according to claim 1, characterized in that: The intermediate layer is made of foam material.

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